National Library of Energy BETA

Sample records for mode distance traveled

  1. Observational evidence for travelling wave modes bearing distance proportional shifts

    E-Print Network [OSTI]

    Guruprasad, V

    2015-01-01

    Discrepancies of range between the Space Surveillance Network radars and the Deep Space Network in tracking the 1998 earth flyby of NEAR, and between ESA's Doppler and range data in Rosetta's 2009 flyby, reveal a consistent excess delay, or lag, equal to instantaneous one-way travel time in the telemetry signals. These lags readily explain all details of the flyby anomaly, and are shown to be symptoms of chirp d'Alembertian travelling wave solutions, relating to traditional sinusoidal waves by a rotation of the spectral decomposition due to the clock acceleration caused by the Doppler rates during the flybys. The lags thus relate to special relativity, but yield distance proportional shifts like those of cosmology at short range.

  2. Observational evidence for travelling wave modes bearing distance proportional shifts

    E-Print Network [OSTI]

    V. Guruprasad

    2015-07-18

    Discrepancies of range between the Space Surveillance Network radars and the Deep Space Network in tracking the 1998 earth flyby of NEAR, and between ESA's Doppler and range data in Rosetta's 2009 flyby, reveal a consistent excess delay, or lag, equal to instantaneous one-way travel time in the telemetry signals. These lags readily explain all details of the flyby anomaly, and are shown to be symptoms of chirp d'Alembertian travelling wave solutions, relating to traditional sinusoidal waves by a rotation of the spectral decomposition due to the clock acceleration caused by the Doppler rates during the flybys. The lags thus relate to special relativity, but yield distance proportional shifts like those of cosmology at short range.

  3. Travel Guide Travel Mode Options

    E-Print Network [OSTI]

    Crowther, Paul

    reduce your travel costs, alleviate congestion and parking problems, reduce your carbon footprint.uclan.ac.uk/sustainabletravel For travel advice contact: UCLan Sports Arena 01772 761000 Reduce time, money and your carbon footprint

  4. The Effect of Abnormal Granulation on Acoustic Wave Travel Times and Mode Frequencies

    E-Print Network [OSTI]

    K. Petrovay; R. Erdelyi; M. J. Thompson

    2007-02-02

    Observations indicate that in plage areas (i.e. in active regions outside sunspots) acoustic waves travel faster than in quiet sun, leading to shortened travel times and higher p-mode frequencies. While it is clear that the ultimate cause of any difference between quiet sun and plage is the presence of magnetic fields of order 100 G in the latter, the mechanism by which the magnetic field exerts its influence has not yet been conclusively identified. One possible such mechanism is suggested by the observation that granular motions in plage areas tend to be slightly ``abnormal'', dampened compared to quiet sun. In this paper we consider the effect that abnormal granulation observed in active regions should have on the propagation of acoustic waves. Any such effect is found to be limited to a shallow surface layer where sound waves propagate nearly vertically. The magnetically suppressed turbulence implies higher sound speeds, leading to shorter travel times. This time shift Dt is independent of the travel distance, while it shows a characteristic dependence on the assumed plage field strength. As a consequence of the variation of the acoustic cutoff with height, Dt is expected to be significantly higher for higher frequency waves within the observed regime of 3-5 mHz. The lower group velocity near the upper reflection point further leads to an increased envelope time shift, as compared to the phase shift. $p$-mode frequencies in plage areas are increased by a corresponding amount, Dnu/nu = nu*Dt. These characteristics of the time and frequency shifts are in accordance with observations. The calculated overall amplitude of the time and frequency shifts are comparable to, but still significantly (factor of 2 to 5) less than suggested by measurements.

  5. Energetically Optimal Travel across Terrain: Visualizations and a New Metric of Geographic Distance with Archaeological Applications

    E-Print Network [OSTI]

    Wood, Zoë J.

    , travel, prehistory, least cost path. Zoë J. Wood2 California Polytechnic State University Brian M. Wood1 the energetically least cost path is shown in blue. This visualization shows how least cost paths often follow of these two paths further illustrate this fact. See figure 2. The overall caloric saving for the least cost

  6. Estimation and validation of mode distances for the 1993 Commodity Flow Survey

    SciTech Connect (OSTI)

    Middendorf, D.P.; Bronzini, M. S.; Peterson, B.; Liu, Cheng; Chin, Shih-Miao

    1995-09-01

    The 1993 Commodity Flow Survey (CFS) collected shipment data from a sample of approximately 200,000 domestic business establishments. Each selected establishment provided information on origin, destination, commodity, shipment weight and value, and modes of transport for a sample of its outbound shipments. One data item not reported by CFS participants was shipment distance. This important piece of information was estimated by simulating probable routes using computer models of the highway, rail, air, waterway, and pipeline networks and their interconnections. This paper describes the nature of the shipment distance estimation problem, the procedures used to estimate mode-specific distances between origin and destination ZIP codes, and the techniques used to validate the results.

  7. A , birds are unique, in that many species regularly travel long distances at com-

    E-Print Network [OSTI]

    distances and taking advantage of the strong winds that are frequent in the Southern Ocean. Received 3 speeds, to take advantage of favorable conditions in widely separated areas. Recent developments suggests that albatrosses have the capacity to maintain positive energy budgets while quickly covering long

  8. The Effects of Free Parking on Commuter Mode Choice: Evidence from Travel Diary Data

    E-Print Network [OSTI]

    Hess, Daniel Baldwin

    2001-01-01

    the costs and benefits of parking cash out, see Shoup (1994)J. Bianco. 1998. “Travel and Parking Behavior in the UnitedOut Employer-Paid Parking: A Precedent for Congestion

  9. 3Solar Energy and the Distance to Juno from the Sun As the Juno spacecraft travels to Jupiter,

    E-Print Network [OSTI]

    spacecraft? Problem 2 ­ If the amount of solar energy falling on the Juno solar panels is determined by the inverse-square law, and the amount of solar energy generated by the solar panels at r = 1.0 AU is exactly 12,690 watts, what is the formula for the solar panel power at any distance defined by the function P

  10. Ring aggregation pattern of Human Travel Trips

    E-Print Network [OSTI]

    Wang, Zi-Yang; Zhu, Peng; Qin, Yong; Jia, Li-Min

    2015-01-01

    Although a lot of attentions have been paid to human mobility, the relationship between travel pattern with city structure is still unclear. Here we probe into this relationship by analyzing the metro passenger trip data.There are two unprecedented findings. One, from the average view a linear law exists between the individual's travel distance with his original distance to city center. The mechanism underlying is a travel pattern we called "ring aggregation", i.e., the daily movement of city passengers is just aggregating to a ring with roughly equal distance to city center.Interestingly, for the round trips the daily travel pattern can be regarded as a switching between the home ring at outer area with the office ring at the inner area. Second, this linear law and ring aggregation pattern seems to be an exclusive characteristic of the metro system. It can not be found in short distance transportation modes, such as bicycle and taxi, neither as multiple transportation modes. This means the ring aggregation p...

  11. Development of methods to objectively identify time spent using active and motorised modes of travel to work: how do self-reported measures compare?

    E-Print Network [OSTI]

    Panter, Jenna; Costa, Silvia; Dalton, Alice; Jones, Andy; Ogilvie, David

    2014-09-19

    to objectively identify time spent using active and motorised modes of travel to work: how do self-reported measures compare? Jenna Panter 1,2 , Silvia Costa 1,2 , Alice Dalton 2,3 , Andy Jones 2,3 and David Ogilvie 1,2 1 MRC Epidemiology Unit, School... , and surveillance. University of Chicago Law Review 2008, 75:47-74. 14. van Hees VT, Golubic R, Ekelund U, Brage S: Impact of study design on development and evaluation of an activity-type classifier. Journal of Applied Physiology 2013, 114:1042-1051. 15...

  12. 2001 New York State NHTS: Travel Patterns of Special Populations

    SciTech Connect (OSTI)

    Hu, Patricia S [ORNL; Reuscher, Tim [ORNL

    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.

  13. Zero Energy Travel

    E-Print Network [OSTI]

    Othman Ahmad; Aroland Kiring; Ali Chekima

    2012-10-17

    It is fundamentally possible to travel with zero energy based on Newton Laws of Motion. According to the first law of motion, a body will continue to travel for infinite distance unless it is acted upon by another force. For a body in motion, the force which stops perpetual motion is friction. However, there are many circumstances that friction is zero, for example in space, where there is vacuum. On earth, gravity makes objects to be in constant contact with each other generating friction but technology exists to separate them in the air using powerful magnetic forces. At low speeds, the friction caused by air is minimal but we can create vacuum even on land for high speed travel. Another condition for travelling is for it to stop at its destination. On land, we can recover the kinetic energy back into electrical energy using brushless permanent magnet generators. These generators can also convert electric energy into kinetic energy in order to provide motion. This article reviews technologies that will allow us to travel with zero energy. It is easier to do it on land but in the air, it is not obvious.

  14. Zero Energry Travel

    E-Print Network [OSTI]

    Ahmad, Othman; Chekima, Ali

    2011-01-01

    It is fundamentally possible to travel with zero energy based on Newton Laws of Motion. According to the first law of motion, a body will continue to travel for infinite distance unless it is acted upon by another force. For a body in motion, the force which stops perpetual motion is friction. However, there are many circumstances that friction is zero, for example in space, where there is vacuum. On earth, gravity makes objects to be in constant contact with each other generating friction but technology exists to separate them in the air using powerful magnetic forces. At low speeds, the friction caused by air is minimal but we can create vacuum even on land for high speed travel. Another condition for travelling is for it to stop at its destination. On land, we can recover the kinetic energy back into electrical energy using brushless permanent magnet generators. These generators can also convert electric energy into kinetic energy in order to provide motion. This article reviews technologies that will allo...

  15. Travelling to Travelling to Paisley Campus

    E-Print Network [OSTI]

    Greenaway, Alan

    Travelling to Paisley Campus #12;Travelling to Paisley Campus UWS supports students in making sustainable travel choices for their journey to Paisley Campus. If you live within 2 miles of campus save travel information. The campus is well served by public transport links. Paisley Gilmour Street and Canal

  16. Travel Reimbursement

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopment TopMetathesisSedimentsTechnologies |TotalRadiationTravel

  17. Distance-based accessibility indices

    E-Print Network [OSTI]

    Csató, László

    2015-01-01

    The paper attempts to develop a suitable accessibility index for networks where each link has a value such that a smaller number is preferred like distance, cost, or travel time. A measure called distance sum is characterized by three independent properties: anonymity, an appropriately chosen independence axiom, and dominance preservation, which requires that a node not far to any other is at least as accessible. We argue for the need of eliminating the independence property in certain applications. Therefore generalized distance sum, a family of accessibility indices, will be suggested. It is linear, considers the accessibility of vertices besides their distances and depends on a parameter in order to control its deviation from distance sum. Generalized distance sum is anonymous and satisfies dominance preservation if its parameter meets a sufficient condition. Two detailed examples demonstrate its ability to reflect the vulnerability of accessibility to link disruptions.

  18. Mission Travelers: Relationship-building and Crosscultural Adaptation 

    E-Print Network [OSTI]

    Lee, Yoon Jung

    2012-10-19

    . Considering the concept of the cultural distance between the participant's home culture and the host culture, American and Korean STM travelers who visited Cambodia or Thailand were recruited. Also, to understand the process of participant's relationship...

  19. 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.

  20. 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.

  1. 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.

  2. TROBEXIS / AMADEUS Travel Portal

    E-Print Network [OSTI]

    Fleming, Andrew J.

    TROBEXIS / AMADEUS Quick Reference Guides ­ Travel Portal University of Newcastle September 2014 #12;Available Quick Reference Guides - 1. Travel Portal Overview 3 2. Trobexis Overview 4 3 of Newcastle - Travel Portal Trobexis.com © 2010 Evolving Spaces (VIC) Pty Ltd and Amadeus IT Group S.A. P a g

  3. 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.

  4. Understanding Sustainable Transportation Choices: Shifting Routine Automobile Travel to Walking and Bicycling

    E-Print Network [OSTI]

    Schneider, Robert James

    2011-01-01

    with Pedestrian and Bicycle Travel .14 2.3. Summaryof Bicycle Safety.130Tour Mode Share by Length of Bicycle Facilities in Shopping

  5. 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.

  6. 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.

  7. 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.

  8. A systematic determination of legends for destination and distance signs in Texas 

    E-Print Network [OSTI]

    McClure, Wesley Glen

    1998-01-01

    Destination and Distance signs are guide signs which are commonly used along rural highways in Texas to display the names of the destinations to be found along a highway, the direction to travel, and the distance in miles ...

  9. 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.

  10. Empirical Measurements of Travelers' Value of Travel Time Reliability 

    E-Print Network [OSTI]

    Danda, Santosh Rao

    2014-08-12

    empirical data to take an initial step toward understanding the importance of travel time reliability. Katy Freeway travelers face a daily choice between reliable tolled lanes and less reliable but untolled lanes. An extensive dataset of Katy Freeway travel...

  11. The distortion of cognitive distance in outdoor recreation travel decisions 

    E-Print Network [OSTI]

    Chang, Yu-Min

    1997-01-01

    me to make this study possible. To Marguerite Van Dyke, Wilma McCormick, and Tina Vega: thank you for your help on all the administrative procedures and paperwork. I was really lucky to be taken care by the best team of secretaries. Most important.... . Procedure Analysis Design. . Hypotheses Tests. Interaction Effect of Information Exposure and Hierarchical Structures. . . . . . . Main Effect of Information Exposure. . . . . . . Main Effect of Hierarchical Structures. . . . . 40 41 42 43 44 44...

  12. Traveling-wave photodetector

    DOE Patents [OSTI]

    Hietala, Vincent M. (Placitas, NM); Vawter, Gregory A. (Albuquerque, NM)

    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.

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. 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.

  18. Travel | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAbout / TransformingTransuranic Waste Retrieval andTravelTravel

  19. Effects of Personalized Travel Destination Visual Image on Travel Motivation 

    E-Print Network [OSTI]

    Lee, Gwanggyu 1981-

    2012-11-12

    This study examines the personalization of shown travel destination visual images using professional photography upon travel motivations, feelings, and purchase intentions of consumers in the online environment. The research design was experimental...

  20. Quantified Traveler: Travel Feedback Meets the Cloud to Change Behavior

    E-Print Network [OSTI]

    2013-01-01

    spent traveling (time, cost, CO2, and calories) was able toemissions (kg of CO2), calories burned, cost ($), and traveland cost (Q4) spent traveling did not shift awareness, the information on calories (Q3) and CO2 (

  1. 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.

  2. REGIONAL TRAVEL MAPS Philadelphia

    E-Print Network [OSTI]

    Gilchrist, James F.

    REGIONAL TRAVEL MAPS 2 hrs. 1 hr. 3 hrs. 4 hrs. 5 hrs. Philadelphia New York City Pittsburgh BostonReadingand Harrisburg 476 476 276 309 309 663 378 309 33 78 80 80 LEHIGH UNIVERSITY Bethlehem Quakertown to Philadelphia Coast including Philadelphia (50 miles south) and New York City (90 miles northeast). Bethlehem

  3. Smartmover Travel Guide Think ahead...

    E-Print Network [OSTI]

    Birmingham, University of

    ;Sustainable travel Around 26% of CO2 emissions generated in the UK are caused by personal car travel. It is therefore important to consider the impact of your car journeys. The University is committed to reducing its impact on the environment by reducing carbon emissions caused by commuting and business travel. As part

  4. Travel | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterFinancialInvestingRenewableTeach and Learn5Shopping forTrainingTravel

  5. Plasmon mode excitation and photoluminescence enhancement on silver nanoring

    E-Print Network [OSTI]

    Kuchmizhak, A A; Kulchin, Yu N; Vitrik, O B

    2015-01-01

    We demonstrate a simple and high-performance laser-assisted technique for silver nanoring fabrication, which includes the ablation of the Ag film by focused nanosecond pulses and subsequent reactive ion polishing. The nanoring diameter and thickness can be controlled by optimizing both the pulse energy and the metal film thickness at laser ablation step, while the subsequent reactive ion polishing provides the ability to fabricate the nanoring with desirable height. Scattering patterns of s-polarized collimated laser beam obliquely illuminating the nanoring demonstrate the focal spot inside the nanoring shifted from its center at a distance of ~ 0.57Rring. Five-fold enhancement of the photoluminescence signal from the Rhodamine 6G organic dye near the Ag nanoring was demonstrated. This enhancement was attributed to the increase of the electromagnetic field amplitude near the nanoring surface arising from excitation of the multipole plasmon modes traveling along the nanoring. This assumption was confirmed by d...

  6. The Walking Renaissance: A Longitudinal Analysis of Walking Travel in the Greater Los Angeles Area, USA 

    E-Print Network [OSTI]

    Joh, Kenneth; Chakrabarti, Sandip; Boarnet, Marlon G.; Woo, Ayoung

    2015-07-10

    Promoting walking travel is considered important for reducing automobile use and improving public health. Recent U.S. transportation policy has incentivized investments in alternative, more sustainable transportation modes ...

  7. Graduate, Undergraduate Student Travel

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFESOpportunitiesNERSC Getting StartedGraduate, Undergraduate Travel

  8. Distance Duality Relation from Strong Gravitational Lensing

    E-Print Network [OSTI]

    Liao, Kai; Cao, Shuo; Biesiada, Marek; Zheng, Xiaogang; Zhu, Zong-Hong

    2015-01-01

    Under very general assumptions of metric theory of spacetime, photons traveling along null geodesics and photon number conservation, two observable concepts of cosmic distance, i.e. the angular diameter and the luminosity distances are related to each other by the so called distance duality relation (DDR) $D^L=D^A(1+z)^2$. Observational validation of this relation is quite important because any evidence of its violation could be a signal of new physics. In this letter we introduce a new method to test DDR based on strong gravitational lensing systems and supernovae Ia. Using a new compilation of strong lensing systems and JLA compilation of SNe Ia we found no evidence of DDR violation. However, not so much the final result but the method itself is worth attention, because unlike previously proposed techniques, it does not depend on prior assumptions concerning the details of cosmological model and galaxy cluster modelling.

  9. Fact #612: March 1, 2010 The Distance of Trips to Work

    Broader source: Energy.gov [DOE]

    The recently released Nationwide Household Travel Survey shows that nearly 60% of work trips are 10 miles or less in distance. Only 9% of work trips are over 30 miles. The average work trip...

  10. 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...

  11. Travel In the ’Hood: Ethnic Neighborhoods and Mode Choice

    E-Print Network [OSTI]

    Blumenberg, Evelyn; Smart, Michael

    2009-01-01

    Angeles City Hall as Evelyn Blumenberg and Michael Smart acity clusters compared to suburban cluster tracts (0.7% increase). Evelyn Blumenberg and Michael Smart

  12. Stable operating regime for traveling wave devices

    DOE Patents [OSTI]

    Carlsten, Bruce E. (Los Alamos, NM)

    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.

  13. Time Travel and the Reality of Spontaneity

    E-Print Network [OSTI]

    C. K. Raju

    2008-04-05

    Contrary to the informed consensus, time travel implies spontaneity (as distinct from chance) so that time travel can only be of the second kind.

  14. Sequentially pulsed traveling wave accelerator

    DOE Patents [OSTI]

    Caporaso, George J. (Livermore, CA); Nelson, Scott D. (Patterson, CA); Poole, Brian R. (Tracy, CA)

    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.

  15. Walking, running, and resting under time, distance, and average speed constraints: Optimality of walk-run-rest mixtures

    E-Print Network [OSTI]

    Srinivasan, Manoj

    in a more ecological (non-treadmill) setting. We asked subjects to travel a given distance overground to go from your house to the bus stop and have very little time to do so. You would likely run the whole

  16. Does Neighborhood Design Influence Travel? A Behavioral Analysis of Travel Diary and GIS Data

    E-Print Network [OSTI]

    Crane, Randall; Crepeau, Richard

    1998-01-01

    Analysis of Travel Diary and GIS Data R andall Crane 1Analysis of Travel Diary and GIS Data ? Randall Craneof household travel diary and GIS data for San Diego finds

  17. NADIM-Travel: A Multiagent Platform for Travel Services Aggregation

    E-Print Network [OSTI]

    Kropf, Peter

    information overload has long been an issue in tourism (Hwang et al. 2002), new technologies and business procedures are changing the way this information is accessible. As a consequence, travel agents and tourism information. MAPWeb (Camacho et al. 2001) for example is a multiagent planning and Web information

  18. 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 Alfvén 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 Alfvén 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 Alfvén 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 Alfvén wave-speed cap is chosen comfortably in excess of the horizontal phase speeds under investigation.

  19. ACCESSING ROAD TRAVEL REPORTS The safest traveler is the well-informed traveler. While road safety conditions in a country affect that country's

    E-Print Network [OSTI]

    Arnold, Jonathan

    ACCESSING ROAD TRAVEL REPORTS The safest traveler is the well-informed traveler. While road safety of countries will appear and you can view each road travel report by clicking "Download Now". #12;

  20. A Mathematics Education Researcher's Travels

    E-Print Network [OSTI]

    Belding, Juliana

    A Mathematics Education Researcher's Travels: Perspectives on Mathematics Education Research from Academia, Government, and Professional Societies Karen D. King, PhD Association of Women in Mathematics for the Intersections of Mathematics and Mathematics Education Perspectives from my past that echo today Current

  1. Travel Pcard Reconciliation Main Campus

    E-Print Network [OSTI]

    New Mexico, University of

    Travel Pcard Reconciliation Manual Main Campus Version 1.0 January 2015 Contact Information Unrestricted Accounting ­ Main Campus MSC 01 1260 STAFF: Lisa Wirth-Fiscal Services Tech Ph. # 277-2019 wirthl accounting offices (Contracts and Grants-Main Campus, Unrestricted Accounting-Main Campus, Contracts

  2. HELIOSEISMIC SIGNATURE OF CHROMOSPHERIC DOWNFLOWS IN ACOUSTIC TRAVEL-TIME MEASUREMENTS FROM HINODE

    SciTech Connect (OSTI)

    Nagashima, Kaori; Sekii, Takashi [Department of Astronomical Science, The Graduate University for Advanced Studies (Sokendai), National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Kosovichev, Alexander G.; Zhao Junwei [W.W. Hansen Experimental Physics Laboratory, Stanford University, Stanford, CA 94305 (United States); Tarbell, Theodore D. [Lockheed Martin Solar and Astrophysics Laboratory, B/252, 3251 Hanover Street, Palo Alto, CA 94304 (United States)], E-mail: kaorin@solar.mtk.nao.ac.jp

    2009-04-01

    We report on a signature of chromospheric downflows in two emerging flux regions detected by time-distance helioseismology analysis. We use both chromospheric intensity oscillation data in the Ca II H line and photospheric Dopplergrams in the Fe I 557.6 nm line obtained by Hinode/SOT for our analyses. By cross-correlating the Ca II oscillation signals, we have detected a travel-time anomaly in the plage regions; outward travel times are shorter than inward travel times by 0.5-1 minute. However, such an anomaly is absent in the Fe I data. These results can be interpreted as evidence of downflows in the lower chromosphere. The downflow speed is estimated to be below 10 km s{sup -1}. This result demonstrates a new possibility of studying chromospheric flows by time-distance analysis.

  3. 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.

  4. Approximation Algorithms for the Minimum Bends Traveling Salesman Problem (Extended Abstract)

    E-Print Network [OSTI]

    design and analysis. The usual metric, minimizing the total distance traveled, is an important one of other heavy machinery: for many such devices turning is an expensive operation. We give approximation, 11, 12, 21, 15], and has been a testbed for many of the most useful ideas in algorithm design

  5. Seattle Smart Traveler D. J. Dailey

    E-Print Network [OSTI]

    Seattle Smart Traveler D. J. Dailey Assistant Professsor, Research (206) 543-2493 D. Loseff SST, October 14-18, 1996, Orlando, Florida #12;ABSTRACT Seattle Smart Traveler (SST) is a world wide web (WWW-based contact methodologies. INTRODUCTION Seattle Smart Traveler (SST) is a Federal Highway Administration field

  6. Combined distance-of-flight and time-of-flight mass spectrometer

    DOE Patents [OSTI]

    Enke, Christie G; Ray, Steven J; Graham, Alexander W; Hieftje, Gary M; Barinaga, Charles J; Koppenaal, David W

    2014-02-11

    A combined distance-of-flight mass spectrometry (DOFMS) and time-of-flight mass spectrometry (TOFMS) instrument includes an ion source configured to produce ions having varying mass-to-charge ratios, a first detector configured to determine when each of the ions travels a predetermined distance, a second detector configured to determine how far each of the ions travels in a predetermined time, and a detector extraction region operable to direct portions of the ions either to the first detector or to the second detector.

  7. Treating Time Travel Quantum Mechanically

    E-Print Network [OSTI]

    John-Mark A. Allen

    2014-10-10

    The fact that closed timelike curves (CTCs) are permitted by general relativity raises the question as to how quantum systems behave when time travel to the past occurs. Research into answering this question by utilising the quantum circuit formalism has given rise to two theories: Deutschian-CTCs (D-CTCs) and "postselected" CTCs (P-CTCs). In this paper the quantum circuit approach is thoroughly reviewed, and the strengths and shortcomings of D-CTCs and P-CTCs are presented in view of their non-linearity and time travel paradoxes. In particular, the "equivalent circuit model"---which aims to make equivalent predictions to D-CTCs, while avoiding some of the difficulties of the original theory---is shown to contain errors. The discussion of D-CTCs and P-CTCs is used to motivate an analysis of the features one might require of a theory of quantum time travel, following which two overlapping classes of new theories are identified. One such theory, the theory of "transition probability" CTCs (T-CTCs), is fully developed. The theory of T-CTCs is shown not to have certain undesirable features---such as time travel paradoxes, the ability to distinguish non-orthogonal states with certainty, and the ability to clone or delete arbitrary pure states---that are present with D-CTCs and P-CTCs. The problems with non-linear extensions to quantum mechanics are discussed in relation to the interpretation of these theories, and the physical motivations of all three theories are discussed and compared.

  8. Creating More Credible and Likable Travel Recommender Systems: The Influence of Virtual Agents on Travel Recommender System Evaluation 

    E-Print Network [OSTI]

    Yoo, Kyung Hyan

    2011-08-08

    To help online trip planners, some online travel agencies and travel service providers have adopted travel recommender systems. Although these systems are expected to support travelers in complex decision-making processes, ...

  9. Demonstration of a 140-GHz 1-kW Confocal Gyro-Traveling-Wave Amplifier

    E-Print Network [OSTI]

    Temkin, Richard J.

    The theory, design, and experimental results of a wideband 140-GHz 1-kW pulsed gyro-traveling-wave amplifier (gyro-TWA) are presented. The gyro-TWA operates in the HE [subscript 06] mode of an overmoded quasi-optical ...

  10. SRI2007 Conference - Travel Tips

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis of Protein1-0845*RV6 Commercial value of4 Hidden1999 HomeTravel

  11. Travel Policy | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.WeekProducts >TransportationEHSS A-Z SitePolicy Travel

  12. Mode Analyses

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on77 PAGEMission Mission Missionof EnergyJennings= a nMode Analyses

  13. Middletown, Connecticut 06459 Ebola Travel Advisory

    E-Print Network [OSTI]

    Thomas, Ellen

    community to refrain from nonessential travel to Guinea, Liberia, and Sierra Leone returning to the state from Guinea, Liberia, and Sierra Leone. It is important

  14. 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,...

  15. JACK & LAURA DANGERMOND GEOGRAPHY TRAVEL SCHOLARSHIP

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    JACK & LAURA DANGERMOND GEOGRAPHY TRAVEL SCHOLARSHIP APPLICATION FORM NAME PERM _______ E-MAIL DATE ___ Terms of the Award: · Applicant must be a currently registered Geography graduate student. · Applicant

  16. UNIVERSITY OF WASHINGTON TRAVEL CARD APPLICATION

    E-Print Network [OSTI]

    Matrajt, Graciela

    UNIVERSITY OF WASHINGTON TRAVEL CARD APPLICATION US 01745 UW CTS Box 351120 206-543-7171 CARD DATA the following conditions: · The card must be used only for University of Washington business related and travel expenses as described in card policies http://f2.washington.edu/fm

  17. Travel policies and practices of Department of Energy grantees. [Travel costs for US DOE grantees

    SciTech Connect (OSTI)

    Not Available

    1981-09-30

    The fiscal year 1980 travel activities, particularly trips to annual conventions, of Department of Energy grantees were reviewed. DOE made 9987 grants during fiscal year 1980. Ten grantees, i.e., educational institutions, governmental entities, companies, etc. were selected for the travel review. Information is included on the cost and purpose of trips, applicable travel policies, cost reporting, and auditing of travel vouchers. The results showed that the 10 selected grantees made 1194 trips costing a total of $170,974, or about 1% of their grant funds. Grantees travel costs ranged from $331 to $46,512 and the number of trips ranged from 1 to 471. (LCL)

  18. Positioner with long travel in two dimensions

    DOE Patents [OSTI]

    Trumper, David L. (Plaistow, NH); Williams, Mark E. (Pelham, NH)

    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.

  19. A methodology for comparing distances traveled by performance-equivalent fixed-route and demand responsive

    E-Print Network [OSTI]

    Quadrifoglio, Luca

    -route and a demand responsive service, while ensuring a comparable service to the same set of customers. We consider to our findings, demand responsive transit services perform better for high- quality service levels and low demand density scenarios. Keywords: transit; bus lines; demand responsive services; service level

  20. CUNY EXPORT CONTROL TRAVEL BRIEFING Last Updated: May 6, 2013

    E-Print Network [OSTI]

    Rosen, Jay

    CUNY EXPORT CONTROL TRAVEL BRIEFING Last Updated: May 6, 2013 1 CUNY EXPORT CONTROL GUIDANCE: INTERNATIONAL TRAVEL BRIEFING 1. Introduction When traveling abroad, taking certain items, providing certain services or meeting with certain people can present export control

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

    Energy Savers [EERE]

    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...

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

    Energy Savers [EERE]

    DOE Honors WIPP Representative for Cutting Travel Costs, Greenhouse Gas Emissions DOE Honors WIPP Representative for Cutting Travel Costs, Greenhouse Gas Emissions June 29, 2012 -...

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

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

    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...

  4. The domestic travel sector in China

    E-Print Network [OSTI]

    Anders, Jeff, M.B.A. Massachusetts Institute of Technology

    2007-01-01

    China is already the largest domestic tourism market in the world. Chinese citizens made as many as 800 million overnight domestic trips in 2005. While travel is not a new concept in China, the disposable income they wield, ...

  5. Travel Agent Participation in Biosecurity Awareness

    E-Print Network [OSTI]

    . The show has increased knowledge for a large proportion (75%) of travel agents and also influenced variation in mean response between 2002 and 2004. There is a tendency for agents to be less ambivalent

  6. The Patricia Mokhtarian Fund for Travel Behavior

    E-Print Network [OSTI]

    California at Davis, University of

    and friends are coming together to create The Patricia Mokhtarian Fund for Travel Behavior at UC Davis Bhat, Cynthia Chen, Sangho Choo, Michael Clay, Susan Handy, David Ory, Ram Pendyala, and Gil Tal. Thank

  7. SELECTING TRAVEL RELIABILITY MEASURES David Schrank

    E-Print Network [OSTI]

    SELECTING TRAVEL RELIABILITY MEASURES by Tim Lomax David Schrank Shawn Turner Texas Transportation Administration provided technical resource staff persons who identified the need for a reliability measure, California Department of Transportation Tim Baker, Colorado Department of Transportation Gordon Morgan

  8. 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...

  9. University of Connecticut Office of Travel Services,

    E-Print Network [OSTI]

    Alpay, S. Pamir

    University of Connecticut Office of Travel Services, Accounts Payable Department New Central Warehouse Building, 3 North Hillside Road, Unit 6220 Storrs, CT 06269-6220 The University of Connecticut

  10. A novel wideband gyrotron travelling wave amplifier

    E-Print Network [OSTI]

    Sirigiri, Jagadishwar R. (Jagadishwar Rao), 1973-

    2003-01-01

    We present the design and the experimental results of a novel wideband quasioptical Gyrotron Traveling Wave Tube (gyro-TWT) amplifier and the first Vacuum Electron Device (VED) with a Photonic Band Gap (PBG) structure. The ...

  11. 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.

  12. QUASI-PERIODIC FAST-MODE WAVE TRAINS WITHIN A GLOBAL EUV WAVE AND SEQUENTIAL TRANSVERSE OSCILLATIONS DETECTED BY SDO/AIA

    SciTech Connect (OSTI)

    Liu Wei; Nitta, Nariaki V.; Aschwanden, Markus J.; Schrijver, Carolus J.; Title, Alan M.; Tarbell, Theodore D.; Ofman, Leon

    2012-07-01

    We present the first unambiguous detection of quasi-periodic wave trains within the broad pulse of a global EUV wave (so-called EIT wave) occurring on the limb. These wave trains, running ahead of the lateral coronal mass ejection (CME) front of 2-4 times slower, coherently travel to distances {approx}> R{sub Sun }/2 along the solar surface, with initial velocities up to 1400 km s{sup -1} decelerating to {approx}650 km s{sup -1}. The rapid expansion of the CME initiated at an elevated height of 110 Mm produces a strong downward and lateral compression, which may play an important role in driving the primary EUV wave and shaping its front forwardly inclined toward the solar surface. The wave trains have a dominant 2 minute periodicity that matches the X-ray flare pulsations, suggesting a causal connection. The arrival of the leading EUV wave front at increasing distances produces an uninterrupted chain sequence of deflections and/or transverse (likely fast kink mode) oscillations of local structures, including a flux-rope coronal cavity and its embedded filament with delayed onsets consistent with the wave travel time at an elevated (by {approx}50%) velocity within it. This suggests that the EUV wave penetrates through a topological separatrix surface into the cavity, unexpected from CME-caused magnetic reconfiguration. These observations, when taken together, provide compelling evidence of the fast-mode MHD wave nature of the primary (outer) fast component of a global EUV wave, running ahead of the secondary (inner) slow component of CME-caused restructuring.

  13. Sustainable Travel Plan for the Exeter Campuses 2010-2015

    E-Print Network [OSTI]

    Bearhop, Stuart

    ; · Introduction of emissions-based car parking charges and a new pay and display scheme to support flexible travel related travel 9 4 Key achievements 10 5 Objectives and targets 11 6 Car parking 11 7 Actions 13 7.9 Mitigating travel emissions 21 7.10 Building developments and site specific travel plans 21 8 Measure

  14. GIFT OF TRAVEL OFFER FORWARDING MEMORANDUM Page 1 of 2

    E-Print Network [OSTI]

    GIFT OF TRAVEL OFFER FORWARDING MEMORANDUM From: Page 1 of 2 To: President, Naval Postgraduate School Subj: OFFER OF GIFT OF TRAVEL TO THE NAVAL POSTGRADUATE SCHOOL Ref: (a) NPS Gifts of Travel SOP Date(mm/dd/yyyy): (b) SECNAVINST 4001.2J Encl: (1) Offer of Gift of Travel from 1. Enclosure (1

  15. Efficient long distance quantum communication

    E-Print Network [OSTI]

    Sreraman Muralidharan; Linshu Li; Jungsang Kim; Norbert Lütkenhaus; Mikhail D. Lukin; Liang Jiang

    2015-09-28

    Despite the tremendous progress of quantum cryptography, efficient quantum communication over long distances (>1000km) remains an outstanding challenge due to fiber attenuation and operation errors accumulated over the entire communication distance. Quantum repeaters, as a promising approach, can overcome both photon loss and operation errors, and hence significantly speedup the communication rate. Depending on the methods used to correct loss and operation errors, all the proposed QR schemes can be classified into three categories (generations). Here we present the first systematic comparison of three generations of quantum repeaters by evaluating the cost of both temporal and physical resources, and identify the optimized quantum repeater architecture for a given set of experimental parameters. Our work provides a roadmap for the experimental realizations of highly efficient quantum networks over transcontinental distances.

  16. Long working distance interference microscope

    DOE Patents [OSTI]

    Sinclair, Michael B.; DeBoer, Maarten P.; Smith, Norman F.

    2004-04-13

    Disclosed is a long working distance interference microscope suitable for three-dimensional imaging and metrology of MEMS devices and test structures on a standard microelectronics probe station. The long working distance of 10-30 mm allows standard probes or probe cards to be used. This enables nanometer-scale 3-D height profiles of MEMS test structures to be acquired across an entire wafer. A well-matched pair of reference/sample objectives is not required, significantly reducing the cost of this microscope, as compared to a Linnik microinterferometer.

  17. Quantum vacuum photon-modes and superhydrophobicity

    E-Print Network [OSTI]

    Louis Dellieu; Olivier Deparis; Jerome Muller; Michael Sarrazin

    2015-01-14

    Nanostructures are commonly used for developing superhydrophobic surfaces. However, available wetting theoretical models ignore the effect of vacuum photon-modes alteration on van der Waals forces and thus on hydrophobicity. Using first-principle calculations, we show that superhydrophibicity of nanostructured surfaces is dramatically enhanced by vacuum photon-modes tuning. As a case study, wetting contact angles of a water droplet above a polyethylene nanostructured surface are obtained from the interaction potential energy calculated as function of the droplet-surface separation distance. This new approach could pave the way for the design of novel superhydrophobic coatings.

  18. Dynamics of multi-modes maximum entangled coherent state over amplitude damping channel

    E-Print Network [OSTI]

    A. El Allati; Y. Hassouni; N. Metwally

    2012-02-18

    The dynamics of maximum entangled coherent state travels through an amplitude damping channel is investigated. For small values of the transmissivity rate the travelling state is very fragile to this noise channel, where it suffers from the phase flip error with high probability. The entanglement decays smoothly for larger values of the transmissivity rate and speedily for smaller values of this rate. As the number of modes increases, the travelling state over this noise channel loses its entanglement hastily. The odd and even states vanish at the same value of the field intensity.

  19. Traveling Waves in Lattice Dynamical Systems

    E-Print Network [OSTI]

    a number of other potentials, like the power potential, the Lennard­Jones potential, etc., which cases). In the case of a general superquadratic potential, the first rigorous study of traveling waves with prescribed av­ eraged potential energy. Then the wave speed c is determined in terms of the corresponding

  20. Donald L. Wood Professional Conference Travel Grants

    E-Print Network [OSTI]

    Cantlon, Jessica F.

    Donald L. Wood Professional Conference Travel Grants for Engineering Undergraduates APPLICATION by a generous donation from the estate of Donald L. Wood. The student application and final report will be used to describe our accomplishments to the family of this sponsor. #12;Donald L. Wood Professional Conference

  1. 1Travel Time Estimation for Traffic Management and Traveler InformationTravel Time Estimation for Traffic Management and Traveler Information Robert L. BertiniRobert L. Bertini

    E-Print Network [OSTI]

    Bertini, Robert L.

    Portland State University Oregon Transportation Research and Education ConsortiumOregon Transportation Research and Education Consortium Transportation Seminar No. 200Transportation Seminar No. 200 ·· April 4, 2008April 4 for Traffic Management and Traveler Information London UndergroundLondon UndergroundLondon Underground #12

  2. Traveling water waves with point vortices

    E-Print Network [OSTI]

    Kristoffer Varholm

    2015-03-20

    We construct small-amplitude solitary traveling gravity-capillary water waves with a finite number of point vortices along a vertical line, on finite depth. This is done using a local bifurcation argument. The properties of the resulting waves are also examined: We find that they depend significantly on the position of the point vortices in the water column.

  3. HARVARD ALUMNI ASSOCIATION WORLDWIDE TRAVEL PROGRAMS

    E-Print Network [OSTI]

    Wood, Robert

    continents ° Choice of land & rail, cruises, rivers & lakes, and spring break & family adventures ° Travel trip "ELBE RIVER" 2014 WITH PROFESSOR WERNER SOLLORS #12;2015 TRIPS LAND & RAIL CENTRAL AMERICA BEST OF PATAGONIA: BUENOS AIRES, SANTIAGO, EL CALAFATE & TORRES DEL PAINE NATIONAL PARK 29 NOVEMBER 6

  4. FACULTY CONFERENCE TRAVEL GRANT APPLICATION FORM

    E-Print Network [OSTI]

    Northern British Columbia, University of

    FACULTY CONFERENCE TRAVEL GRANT APPLICATION FORM The University of Northern British Columbia conferences. GUIDELINES 1. There will be two (2) competitions per year: March 15 and September 15. 2 consideration; however, the applicant must apply prior to attending the conference and an explanation

  5. CUNY EXPORT CONTROL PROCEDURES 16. Travel Abroad

    E-Print Network [OSTI]

    Rosen, Jay

    CUNY EXPORT CONTROL PROCEDURES 16. Travel Abroad This Section addresses the process for ensuring export control compliance when shipping or carrying tangible items associated with conferences with whether these activities are subject to export control regulations, to the extent that the scope

  6. Young media-induced travelers: online representations of media-induced travel conversations 

    E-Print Network [OSTI]

    Scarpino, Michelle Renee

    2009-05-15

    technology, specifically how online communities and online discussion forums are utilized as important venues, which support conversations among travelers (Wang, Yu & Fesenmaier, 2002; Wang & Fesenmaier, 2004). Study results supported previous arguments...

  7. Forecasting 65+ travel : an integration of cohort analysis and travel demand modeling

    E-Print Network [OSTI]

    Bush, Sarah, 1973-

    2003-01-01

    Over the next 30 years, the Boomers will double the 65+ population in the United States and comprise a new generation of older Americans. This study forecasts the aging Boomers' travel. Previous efforts to forecast 65+ ...

  8. Colorado State University Quick Reference Guide to University Travel

    E-Print Network [OSTI]

    approval from the Office of Risk Management is required; failure to obtain pre-approval will result or institution of higher education. Airfares/Airlines Traveler should work with approved travel agency and use

  9. What is the purpose of the Travel Policy?

    E-Print Network [OSTI]

    California at Berkeley, University of

    ://www.lib.berkeley.edu/Staff/LBS/travel.html http://policy.ucop.edu/doc/3420365/BFB-G-28 How to book a car rental through Connexxus: UC Travel

  10. Terminal Chaos: Why U.S. AirTravel Is

    E-Print Network [OSTI]

    . Unless aviation infrastructure (airports and air traffic control) were also transformed by market forces success in democ- ratizing air travel. It unleashed competition that transformed air travel from a luxury

  11. Improving Traffic Congestion By Regulating Employee Travel: A Phoenix Survey

    E-Print Network [OSTI]

    Burns, Elizabeth K.

    1991-01-01

    suburbancharacter. The City of Phoenix’s UrbanVillage PlanBy Regulating Employee Travel: A Phoenix Survey Elizabeth K.by Regulating Employee Travel: A Phoenix Survey Elizabeth K.

  12. Two-dimensional defect modes in optically induced photonic lattices

    SciTech Connect (OSTI)

    Wang Jiandong; Yang Jianke; Chen Zhigang [Department of Mathematics and Statistics, University of Vermont, Burlington, Vermont 05401 (United States); Department of Physics and Astronomy, San Francisco State University, San Francisco, California 94132 (United States)

    2007-07-15

    In this article, localized linear defect modes due to band gap guidance in two-dimensional photonic lattices with localized or nonlocalized defects are investigated theoretically. First, when the defect is localized and weak, eigenvalues of defect modes bifurcated from edges of Bloch bands are derived analytically. It is shown that in an attractive (repulsive) defect, defect modes bifurcate out from Bloch-band edges with normal (anomalous) diffraction coefficients. Furthermore, distances between defect-mode eigenvalues and Bloch-band edges decrease exponentially with the defect strength, which is very different from the one-dimensional case where such distances decrease quadratically with the defect strength. It is also found that some defect-mode branches bifurcate not from Bloch-band edges, but from quasiedge points within Bloch bands, which is very unusual. Second, when the defect is localized but strong, defect modes are determined numerically. It is shown that both the repulsive and attractive defects can support various types of defect modes such as fundamental, dipole, quadrupole, and vortex modes. These modes reside in various band gaps of the photonic lattice. As the defect strength increases, defect modes move from lower band gaps to higher ones when the defect is repulsive, but remain within each band gap when the defect is attractive, similar to the one-dimensional case. The same phenomena are observed when the defect is held fixed while the applied dc field (which controls the lattice potential) increases. Lastly, if the defect is nonlocalized (i.e., it persists at large distances in the lattice), it is shown that defect modes can be embedded inside the continuous spectrum, and they can bifurcate out from edges of the continuous spectrum algebraically rather than exponentially.

  13. Distance Probes of Dark Energy

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

    Kim, A. G.; Padmanabhan, N.; Aldering, G.; Allen, S. W.; Baltay, C.; Cahn, R. N.; D' Andrea, C. B.; Dalal, N.; Dawson, K. S.; Denney, K. D.; et al

    2015-03-15

    We present the results from the Distances subgroup of the Cosmic Frontier Community Planning Study (Snowmass 2013). This document summarizes the current state of the field as well as future prospects and challenges. In addition to the established probes using Type Ia supernovae and baryon acoustic oscillations, we also consider prospective methods based on clusters, active galactic nuclei, gravitational wave sirens and strong lensing time delays.

  14. TRAVEL AND BUSINESS EXPENSES University Policy No.: HR6500

    E-Print Network [OSTI]

    Victoria, University of

    Services. 7.00 Reimbursement for prepaid travel, accommodation and conference fees may be claimed in advance by submitting a Travel Claim before the trip. The prepaid receipt with a charge to the appropriate for the prepaid expenses must be included with receipts and the Travel Expense Report after the trip and charged

  15. Financial Policy Manual 2357 TRAVEL AND ENTERTAINMENT POLICY RENTAL CARS

    E-Print Network [OSTI]

    George, Edward I.

    Financial Policy Manual Page 1 2357 ­ TRAVEL AND ENTERTAINMENT POLICY ­ RENTAL CARS Resp. Office/Revision: April 1, 2015 PURPOSE To provide travel guidelines regarding the use of rental cars when traveling on behalf of the University. SCOPE This policy applies to the procurement of rental cars by and for all

  16. Supply Chain Management Purchasing, Direct Pay and Travel

    E-Print Network [OSTI]

    to duplicate. The link to their website is: http://www.lsuhsc.edu/no/administration/supplychain/ CBA with a State of Louisiana Corporate Travel Card or the Dean's office CBA. Only travel listed under the previous CBA section can be purchased with a CBA. Signatures Required for Travel (Dean's office policy

  17. Seattle Smart Traveler: Dynamic Ridematching on the World Wide Web

    E-Print Network [OSTI]

    Seattle Smart Traveler: Dynamic Ridematching on the World Wide Web D. J. Dailey* , D. Loseff, and D Smart Traveler (SST) is an application of World Wide Web (WWW) technology to test the concept. Keywords: Dynamic ridematch; Rideshare; Database; WWW; Carpool 1. INTRODUCTION Seattle Smart Traveler (SST

  18. Motor Fleet Request/Authorization Page 1 UNCW Travel System

    E-Print Network [OSTI]

    Olszewski Jr., Edward A.

    Motor Fleet Request/Authorization Page 1 UNCW Travel System Motor Fleet Request/Travel Authorization ENTER THE MOTOR FLEET REQUEST IN THE TRANSPORTATION SECTION OF THE TRAVEL AUTHORIZATION. PRESS CLICK TO ADD AND SELECT MOTOR FLEET FROM THE DROP-DOWN BOX. #12;Motor Fleet Request/Authorization Page 2

  19. Travel Reimbursement Request Form Submit to: Front Desk

    E-Print Network [OSTI]

    Rose, Michael R.

    Travel Reimbursement Request Form Submit to: Front Desk Department of Pharmaceutial Sciences 147 expenses) If travel time does not include overnight stay (between 7AM - 8PM), the traveler should not claim before 11 AM and arrival after 2 PM; dinner - departure before 5 PM. PM and arrival after 7 PM NOTE

  20. Transformation of spatial and perturbation derivatives of travel time

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Transformation of spatial and perturbation derivatives of travel time at a general interface and perturbation parameters. We derive the explicit equations for transforming these travel­time derivatives Hamiltonian function and are applicable to the transformation of travel­time derivatives in both isotropic

  1. Revised: October 2010 Eligible employees may request an Individual Travel Card if they travel overnight at least twice

    E-Print Network [OSTI]

    Lewis, Robert Michael

    ://covkc.virginia.gov. The training is two modules; please follow the instructions on the TCC Cardholder Training Guide. You should State Travel Regulations b. CAPP Topic 20360 Travel Charge Card 5. Complete the Cardholder training

  2. Observable primordial vector modes

    E-Print Network [OSTI]

    Antony Lewis

    2004-06-04

    Primordial vector modes describe vortical fluid perturbations in the early universe. A regular solution exists with constant non-zero radiation vorticities on super-horizon scales. Baryons are tightly coupled to the photons, and the baryon velocity only decays by an order unity factor by recombination, leading to an observable CMB anisotropy signature via the Doppler effect. There is also a large B-mode CMB polarization signal, with significant power on scales larger than l~2000. This B-mode signature is distinct from that expected from tensor modes or gravitational lensing, and makes a primordial vector to scalar mode power ratio ~10^(-6) detectable. Future observations aimed at detecting large scale B-modes from gravitational waves will also be sensitive to regular vector modes at around this level.

  3. OSU Student Health Services Travel Clinic Prices, 2015-2016 Travel Consult prices and length of appointment

    E-Print Network [OSTI]

    Tullos, Desiree

    OSU Student Health Services Travel Clinic Prices, 2015-2016 Travel Consult prices and length. Prices listed below are subject to change based on vaccine or medication price increases. Vaccines prices, and region of travel all impact vaccine recommendations. Vaccine prices below include a $14 injection fee. Td

  4. Quantum heuristic algorithm for traveling salesman problem

    E-Print Network [OSTI]

    Jeongho Bang; Seokwon Yoo; James Lim; Junghee Ryu; Changhyoup Lee; Jinhyoung Lee

    2012-11-06

    We propose a quantum heuristic algorithm to solve a traveling salesman problem by generalizing Grover search. Sufficient conditions are derived to greatly enhance the probability of finding the tours with extremal costs, reaching almost to unity and they are shown characterized by statistical properties of tour costs. In particular for a Gaussian distribution of the tours along the cost we show that the quantum algorithm exhibits the quadratic speedup of its classical counterpart, similarly to Grover search.

  5. A comparison of trip production rates developed from two types of travel survey diaries 

    E-Print Network [OSTI]

    Tyner, Fred Mack

    1996-01-01

    In recent years, two types of travel survey diaries have been used to collect travel behavior data for transportation planning: travel diaries and activity diaries. In the travel diary, respondents are prompted to respond for each trip. Further...

  6. Extension arm for mobile travelers suit case

    DOE Patents [OSTI]

    Byington, Gerald A. (Knoxville, TN)

    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.

  7. High-frequency modes in solar-like stars

    E-Print Network [OSTI]

    C. Karoff

    2007-08-14

    p-mode oscillations in solar-like stars are excited by the outer convection zone in these stars and reflected close to the surface. The p-modes are trapped inside an acoustic cavity, but the modes only stay trapped up to a given frequency (known as the acoustic cut-off frequency) as modes with larger frequencies are generally not reflected at the surface. This means that modes with frequency larger than the acoustic cut-off frequency must be traveling waves. The high-frequency modes may provide information about the physics in the outer layers of the stars and the excitation source and are therefore highly interesting as it is the estimation of these two phenomena that causes some of the largest uncertainties when calculating stellar oscillations. High-frequency modes have been detected in the Sun, beta Hydri and in alpha Cen A & B by smoothing the so-called echelle diagram and the large frequency separation as a function of frequency have been estimated. The large frequency separation has been compared with a simple model of the acoustic cavity which suggests that the reflectivity of the photosphere is larger at high frequency than predicted by standard models of the solar atmosphere and that the depth of the excitation source is larger than what has been estimated by other models and might depend on the order n and degree l of the modes.

  8. Large Distance Continuous Variables Communication with Concatenated Swaps

    E-Print Network [OSTI]

    Muhammad Asjad; Stefano Zippilli; Paolo Tombesi; David Vitali

    2015-04-01

    The radiation-pressure interaction between electromagnetic fields and mechanical resonators can be used to efficiently entangle two light fields which couple to a single mechanical mode. We analyze the performance of this process under realistic optomechanical conditions, and we determine the effectiveness of the resulting entanglement as a resource for quantum teleportation of continuous-variable light signals, over large distances, mediated by concatenated swap operations. We study the sensitiveness of the protocol to the quality factor of the mechanical systems, and its performance in non-ideal situations in which losses and reduced detection efficiencies are taken into account.

  9. Metrics and methods for social distance

    E-Print Network [OSTI]

    Andris, Clio

    2011-01-01

    Distance measures are important for scientists because they illustrate the dynamics of geospatial topologies for physical and social processes. Two major types of distance are generally used for this purpose: Euclidean ...

  10. Mixed-mode cooling.

    E-Print Network [OSTI]

    Brager, Gail

    2006-01-01

    ASHRAE’s permission. Mixed-Mode Cooling Photo Credit: Paulnatural ventilation for cooling. Buildings typically had1950s of large-scale mechanical cooling, along with other

  11. Cluster Compatibility Mode

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

    the needed runtime environment. Users can also compile codes for CCM on Hopper. All compilers available to Hopper's native programming environment (Extreme Scalability Mode, ESM...

  12. Venue and Travel | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About1996HowFOAShowingFuel Efficiency &Report | DepartmentVenue and Travel

  13. ON PULSAR DISTANCE MEASUREMENTS AND THEIR UNCERTAINTIES

    SciTech Connect (OSTI)

    Verbiest, J. P. W.; Lee, K. J. [Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, 53121 Bonn (Germany); Weisberg, J. M.; Chael, A. A. [Department of Physics and Astronomy, Carleton College, Northfield, MN 55057 (United States); Lorimer, D. R. [Department of Physics, West Virginia University, Morgantown, WV 26506 (United States)

    2012-08-10

    Accurate distances to pulsars can be used for a variety of studies of the Galaxy and its electron content. However, most distance measures to pulsars have been derived from the absorption (or lack thereof) of pulsar emission by Galactic H I gas, which typically implies that only upper or lower limits on the pulsar distance are available. We present a critical analysis of all measured H I distance limits to pulsars and other neutron stars, and translate these limits into actual distance estimates through a likelihood analysis that simultaneously corrects for statistical biases. We also apply this analysis to parallax measurements of pulsars in order to obtain accurate distance estimates and find that the parallax and H I distance measurements are biased in different ways, because of differences in the sampled populations. Parallax measurements typically underestimate a pulsar's distance because of the limited distance to which this technique works and the consequential strong effect of the Galactic pulsar distribution (i.e., the original Lutz-Kelker bias), in H I distance limits, however, the luminosity bias dominates the Lutz-Kelker effect, leading to overestimated distances because the bright pulsars on which this technique is applicable are more likely to be nearby given their brightness.

  14. SOLITARY-WAVE AND MULTI-PULSED TRAVELING-WAVE ...

    E-Print Network [OSTI]

    1910-00-81

    ential equations which model waves in a horizontal water channel traveling in ... undisturbed water depth and ? lies in [0,1]. ..... We content ourselves with.

  15. Return to the Homeland: Travels in Nigeria by Ola Washington

    E-Print Network [OSTI]

    Amankulor, J. Ndukaku

    1989-01-01

    of America during her visit to Nigeria. The imponant thingshowed that she went to Nigeria having a positive attitudethe Homeland; Travels in Nigeria - No Snakes, No Monkeys, No

  16. 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...

  17. 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.

  18. A Dynamic Traveling Salesman Problem with Stochastic Arc Costs

    E-Print Network [OSTI]

    Alejandro Toriello

    2012-08-31

    Aug 31, 2012 ... Abstract: We propose a dynamic traveling salesman problem (TSP) with stochastic arc costs motivated by applications, such as dynamic ...

  19. Secretary Moniz Announces Travel to Alaska, Idaho, Wyoming, Missouri...

    Office of Environmental Management (EM)

    to Alaska, Idaho, Wyoming, Missouri to Discuss Energy Opportunities and Attend Dedication of Kansas City Plant Secretary Moniz Announces Travel to Alaska, Idaho, Wyoming,...

  20. The electron geodesic acoustic mode

    SciTech Connect (OSTI)

    Chakrabarti, N. [Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Calcutta 700 064 (India); Guzdar, P. N. [Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742 (United States); Kaw, P. K. [Institute for Plasma Research Bhat, Gandhinagar 382428 (India)

    2012-09-15

    In this report, a novel new mode, named the electron geodesic acoustic mode, is presented. This mode can occur in toroidal plasmas like the conventional geodesic acoustic mode (GAM). The frequency of this new mode is much larger than that of the conventional GAM by a factor equal to the square root of the ion to electron mass ratio.

  1. Observations of traveling ionospheric disturbances with a satellite-beacon radio interferometer: Seasonal and local time behavior

    SciTech Connect (OSTI)

    Jacobson, A.R.; Carlos, R.C.; Massey, R.S.; Wui, Guanghui [Los Alamos National Lab., NM (United States)] [Los Alamos National Lab., NM (United States)

    1995-02-01

    The authors have operated a very long baseline interferometer array at a northern midlatitude site, illuminated by VHF radio beacons from two geosynchronous satellites, quasi-continuously for over a year. The array can detect and measure the trace velocity of traveling ionosphere disturbances (TIDs) via their signatures in the line-of-sight total electron content (TEC). The system noise level is of the order of 10{sup 13} m{sup {minus}2} in the TEC, so that even very weak perturbations can be studied. They have used the year-long TID detection/velocimetry data set to describe local time and seasonal dependences of the wave parameters. The most striking finding is that the preferred azimuths of TIDs in the data set tend to belong to either of two modes: The first mode, strongest at midday and in the early afternoon, particularly around winter equinox, propagates southward. The second mode, strongest in the evening, especially during summer solstice through autumn equinox, propagates west-northwestward. The two modes are disposed in local time such as to suggest the agency of clockwise rotation of the TID preferred azimuths versus time, as expected by wind filtering in the thermospheric diurnal tide. However, there is a gap between the two modes` azimuth bands. Moreover, the two modes exist in all trace-speed quartiles of the data set TIDs, a finding which is at variance with the hypothesis of wind filtering being the primary explanation of these modes. 28 refs., 13 figs.

  2. Modes of perceiving and imagining 

    E-Print Network [OSTI]

    Nudds, Matthew

    2000-01-01

    We enjoy modes of sensory imagining corresponding to our five modes of perception - seeing, touching, hearing, smelling and tasting. An account of what constitutes these different modes of perseption needs also to explain ...

  3. Nuclear reaction rates and energy in stellar plasmas : The effect of highly damped modes

    E-Print Network [OSTI]

    Merav Opher; Luis O. Silva; Dean E. Dauger; Viktor K. Decyk; John M. Dawson

    2001-05-09

    The effects of the highly damped modes in the energy and reaction rates in a plasma are discussed. These modes, with wavenumbers $k \\gg k_{D}$, even being only weakly excited, with less than $k_{B}T$ per mode, make a significant contribution to the energy and screening in a plasma. When the de Broglie wavelength is much less than the distance of closest approach of thermal electrons, a classical analysis of the plasma can

  4. Light Properties Light travels at the speed of light `c'

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    LIGHT!! #12;Light Properties Light travels at the speed of light `c' C = 3 x 108 m/s Or 190,000 miles/second!! Light could travel around the world about 8 times in one second #12;What is light?? Light is a "wave packet" A photon is a "light particle" #12;Electromagnetic Radiation and You Light is sometimes

  5. Motor Fleet Approval Process Page 1 UNCW Travel System

    E-Print Network [OSTI]

    Olszewski Jr., Edward A.

    Motor Fleet Approval Process Page 1 UNCW Travel System Motor Fleet Approval Process Preparer submits the motor fleet vehicle request; and the request is automatically routed to the traveler an e-mail notifying them there are pending motor fleet signatures. If you are both supervisor

  6. INTERNATIONAL ACADEMIC TRAVEL AND U.S. EXPORT

    E-Print Network [OSTI]

    Li, X. Rong

    INTERNATIONAL ACADEMIC TRAVEL AND U.S. EXPORT CONTROLS Updated on 5/15/2014 #12;What are Export Export Administration Regulations (EAR) ­ technologies with "dual uses" but primarily commercial 1 2 3 is an "Export" #12;INTERNATIONAL TRAVEL U.S. export control laws are principally concerned with: · Whether

  7. International Academic Travel and U.S. Export Controls INTRODUCTION

    E-Print Network [OSTI]

    Li, X. Rong

    TOPIC: International Academic Travel and U.S. Export Controls INTRODUCTION: Many principal, and to perform their actual field research. But the academic traveler's failure to comply with U.S. export, was recently convicted for conspiracy to violate the Arms Export Control Act (AECA), the parent statute

  8. Travel Reimbursement Request Form Submit to: Front Desk

    E-Print Network [OSTI]

    Loudon, Catherine

    Travel Reimbursement Request Form Submit to: Front Desk Department of Pharmaceutical Sciences 147 : Maximum: $71.00 (Itemize meal expenses) If travel time does not include overnight stay (between 7AM - 8PM; lunch - departure before 11 AM and arrival after 2 PM; dinner - departure before 5 PM. PM and arrival

  9. Financial Policy Manual 2351 TRAVEL AND ENTERTAINMENT POLICY OVERVIEW

    E-Print Network [OSTI]

    George, Edward I.

    Financial Policy Manual Page 1 2351 ­ TRAVEL AND ENTERTAINMENT POLICY ­ OVERVIEW Resp. Office/Revision: April 1, 2015 PURPOSE To provide a policy overview for the purchase and payment/reimbursement of travel and entertainment on behalf of the University. SCOPE This policy applies to all affiliates (faculty, staff, students

  10. Financial Policy Manual 2360 TRAVEL AND ENTERTAINMENT POLICY TELEPHONE USAGE

    E-Print Network [OSTI]

    George, Edward I.

    Financial Policy Manual Page 1 2360 ­ TRAVEL AND ENTERTAINMENT POLICY ­ TELEPHONE USAGE Resp expenses incurred when traveling on behalf of the University. SCOPE This policy applies responsibilities of the employee, student or postdoc can be found in Policy #2352. RESPONSIBILITY OF APPROVERS

  11. Policy: Travel Compensation for Non-exempt Employees

    E-Print Network [OSTI]

    Policy: Travel Compensation for Non-exempt Employees Information contained in this document serves for overtime by federal law) salaried and hourly employees while traveling. Although CSU policy and the Federal for supervisors to interpret multiple policies on their own, CEMML has created a policy to ensure compliance

  12. Formation distance Stphanie Jean-Daubias

    E-Print Network [OSTI]

    Jean-Daubias, Stéphanie

    ) dans le temps et dans l'espace de l'apprenant et de l'équipe professorale 3 #12;Deux types de médias en;Formation à distance et espace Plusieurs variantes possibles enseignement entièrement à distance

  13. Distance Education Graduate Program in Environmental Science

    E-Print Network [OSTI]

    Ma, Lena

    Distance Education Graduate Program in Environmental Science Soil & Water ScienceSoil & Water (Environmental Science Track). Courses are offered via distance education to accommodate place-bound students and educational opportunities for students seeking careers in soil and water science in land and water resource

  14. Short distance physics with heavy quark potentials

    E-Print Network [OSTI]

    Zantow, F; Karsch, Frithjof; Petreczky, P

    2002-01-01

    We present lattice studies of heavy quark potentials in the quenched approximation of QCD at finite temperatures. Both, the color singlet and color averaged potentials are calculated. While the potentials are well known at large distances, we give a detailed analysis of their short distance behavior (from 0.015 fm to 1 fm) near the critical temperature. At these distances we expect that the T-dependent potentials go over into the zero temperature potential. Indeed, we find evidences that the temperature influence gets suppressed and the potentials starts to become a unique function of the underlying distance scale. We use this feature to normalize the heavy quark potentials at short distances and extract the free energy of the quark system in a gluonic heat bath.

  15. National Wind Distance Learning Collaborative

    SciTech Connect (OSTI)

    Dr. James B. Beddow

    2013-03-29

    Executive Summary The energy development assumptions identified in the Department of Energy's position paper, 20% Wind Energy by 2030, projected an exploding demand for wind energy-related workforce development. These primary assumptions drove a secondary set of assumptions that early stage wind industry workforce development and training paradigms would need to undergo significant change if the workforce needs were to be met. The current training practice and culture within the wind industry is driven by a relatively small number of experts with deep field experience and knowledge. The current training methodology is dominated by face-to-face, classroom based, instructor present training. Given these assumptions and learning paradigms, the purpose of the National Wind Distance Learning Collaborative was to determine the feasibility of developing online learning strategies and products focused on training wind technicians. The initial project scope centered on (1) identifying resources that would be needed for development of subject matter and course design/delivery strategies for industry-based (non-academic) training, and (2) development of an appropriate Learning Management System (LMS). As the project unfolded, the initial scope was expanded to include development of learning products and the addition of an academic-based training partner. The core partners included two training entities, industry-based Airstreams Renewables and academic-based Lake Area Technical Institute. A third partner, Vision Video Interactive, Inc. provided technology-based learning platforms (hardware and software). The revised scope yielded an expanded set of results beyond the initial expectation. Eight learning modules were developed for the industry-based Electrical Safety course. These modules were subsequently redesigned and repurposed for test application in an academic setting. Software and hardware developments during the project's timeframe enabled redesign providing for student access through the use of tablet devices such as iPads. Early prototype Learning Management Systems (LMS) featuring more student-centric access and interfaces with emerging social media were developed and utilized during the testing applications. The project also produced soft results involving cross learning between and among the partners regarding subject matter expertise, online learning pedagogy, and eLearning technology-based platforms. The partners believe that the most significant, overarching accomplishment of the project was the development and implementation of goals, activities, and outcomes that significantly exceeded those proposed in the initial grant application submitted in 2009. Key specific accomplishments include: (1) development of a set of 8 online learning modules addressing electrical safety as it relates to the work of wind technicians; (3) development of a flexible, open-ended Learning Management System (LMS): (3) creation of a robust body of learning (knowledge, experience, skills, and relationships). Project leaders have concluded that there is substantial resource equity that could be leverage and recommend that it be carried forward to pursue a Next Stage Opportunity relating to development of an online core curriculum for institute and community college energy workforce development programs.

  16. Cluster Compatibility Mode

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAuditsCluster Compatibility Mode Cluster Compatibility Mode Edison compute

  17. Cluster Compatibility Mode

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAuditsCluster Compatibility Mode Cluster Compatibility Mode Edison

  18. First Time Traveler with NU? Sign up for NU financials security access

    E-Print Network [OSTI]

    Ottino, Julio M.

    & Biological Engineering Tech E136 8474912774 Travel Confirmations to Submit: Any prepaid travel should passes, any email confirmations for flight reservations (prepaid or reimbursable) Taxi, Rail, Parking

  19. Traveling-wave photodetectors with high power-bandwidth and gain-bandwidth product performance

    E-Print Network [OSTI]

    2004-01-01

    TRAVELING-WAVE PHOTODETECTORS WITH HIGH POWER–BANDWIDTH ANDTraveling-wave photodetectors for high-power, largeTRAVELING-WAVE PHOTODETECTORS WITH HIGH POWER–BANDWIDTH AND

  20. Methodological Issues in the Estimation of the Travel, Energy, and Air Quality Impacts of Telecommuting

    E-Print Network [OSTI]

    Mokhtarian, Patricia; Handy, Susan; Salomon, Ilan

    1995-01-01

    have analyzed the air quality and energy impacts, but mostits travel, air quality, and energy impacts, and illustrateTHE TRAVEL, ENERGY, AND AIR QUALITY IMPACTS OF TELECOMMUTING

  1. How Common is Pedestrian Travel To, From, and Within Shopping Districts?

    E-Print Network [OSTI]

    Schneider, Robert J.; Pande, Swati S.

    2012-01-01

    Part 2. Footnotes Table 2. Pedestrian Travel on Tours To andDistricts Table 3. Pedestrian Travel Within ShoppingFigure 2. Respondent Pedestrian Path Density in Different

  2. Administrative Directive For: Travel and Related Expenses Rates, Suppliers and Services

    E-Print Network [OSTI]

    Michelson, David G.

    1 Administrative Directive For: Travel and Related Expenses Rates, Suppliers and Services under Options - University travellers have the following alternate options for rental vehicle collision

  3. 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

  4. Case study: copyright issues in distance education 

    E-Print Network [OSTI]

    Huddleston, Michael B

    2006-10-30

    Over the years, much attention has been given to copyright law in literature and as it pertains to textbooks and other original academic works. However, as the focus is narrowed to the copyright law as it relates to distance ...

  5. A longitudinal study of the distance that young people walk to school

    E-Print Network [OSTI]

    Chillón, P.; Panter, J.; Corder, K.; Jones, A. P.; Van Sluijs, E. M. F.

    2014-12-18

    .0%) providing commuting data. 2.3. Measures 2.3.1. Mode of commuting to school Participants answered the same question at all measurements: “How do you usually travel to school?”, with four response cate- gories: “(a) by car, (b) by bus or train, (c) by bicycle... /Adolescent characteristics Age (years) 10.3 (0.3) 10.6 (1.2) 14.3 (0.3) BMI (kg/m2) 18.22 (3.18) – 20.9 (4.0) Sex Male 919 (44.8) 370 (40.6) 215 (45.3) Female 1134 (55.2) 531 (58.3) 260 (54.7) Mode of commuting to school Walk 814 (39.6) 420 (46.1) 164 (34.5) Bicycle 189 (9...

  6. UW TravelWIse: New travel portal launched on Aug. 1 Effective Aug. 1, 2013 all UW employees have access to a new portal for all their UW business

    E-Print Network [OSTI]

    Evans, Paul G.

    UW TravelWIse: New travel portal launched on Aug. 1 Effective Aug. 1, 2013 all UW employees have access to a new portal for all their UW business travel needs. The portal, called UW TravelWIse, provides both convenience and consistency for all involved in business travel. Using the travel portal, UW

  7. 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.

  8. 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.

  9. Defining business strategy for development of travel and tourism industry

    E-Print Network [OSTI]

    Davari, Dordaneh

    2011-01-01

    Many studies conducted on Travel and Tourism industry consider tourism an economic phenomenon. Providing a customer-satisfaction-based analysis, this thesis deals with both economic and social aspects. Economic data on ...

  10. Developing an alternative model for travel decision-making 

    E-Print Network [OSTI]

    Hung, Kam

    2009-05-15

    This study proposes an alternative travel decision making model and situates its arguments in the Motivation-Opportunity-Ability (MOA) theoretical construct. The MOA model suggests that motivation, opportunity, and ability ...

  11. Understanding transit travel behavior : value added by smart cards

    E-Print Network [OSTI]

    Gupta, Saumya, S.M. Massachusetts Institute of Technology

    2006-01-01

    Travel behavior represents a particularly complex area of research in transportation given the interaction between transport supply characteristics and the user perceptions which guide his/her decisions. Thanks to the ...

  12. Travel Time Reliability: Its Measurement and Prediction | ornl...

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

    Travel Time Reliability: Its Measurement and Prediction Apr 02 2014 10:00 AM - 11:00 AM George List, North Carolina State University, Raleigh, and Richard Margiotta, Cambridge...

  13. THE GREATER TORONTO AREA TRAVEL DEMAND MODELLING SYSTEM

    E-Print Network [OSTI]

    Toronto, University of

    by the then Metropolitan Toronto Planning Department and the Ministry of Transportation, Ontario. Support and advice Post-Run Report 32 4.5 Base 1996 Files for Use in Post-Run Utilities 33 #12;GTA Travel Demand Modelling

  14. Photonic-Band-Gap Traveling-Wave Gyrotron Amplifier

    E-Print Network [OSTI]

    Nanni, Emilio Alessandro

    We report the experimental demonstration of a gyrotron traveling-wave-tube amplifier at 250 GHz that uses a photonic band gap (PBG) interaction circuit. The gyrotron amplifier achieved a peak small signal gain of 38 dB and ...

  15. Odometer Versus Self-Reported Estimates of Vehicle Miles Traveled

    Reports and Publications (EIA)

    2000-01-01

    The findings described here compare odometer readings with self-reported estimates of Vehicle Miles Traveled (VMT) to investigate to what extent self-reported VMT is a reliable surrogate for odometer-based VMT.

  16. 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...

  17. Constraining primordial vector mode from B-mode polarization

    SciTech Connect (OSTI)

    Saga, Shohei; Ichiki, Kiyotomo; Shiraishi, Maresuke E-mail: maresuke.shiraishi@pd.infn.it

    2014-10-01

    The B-mode polarization spectrum of the Cosmic Microwave Background (CMB) may be the smoking gun of not only the primordial tensor mode but also of the primordial vector mode. If there exist nonzero vector-mode metric perturbations in the early Universe, they are known to be supported by anisotropic stress fluctuations of free-streaming particles such as neutrinos, and to create characteristic signatures on both the CMB temperature, E-mode, and B-mode polarization anisotropies. We place constraints on the properties of the primordial vector mode characterized by the vector-to-scalar ratio r{sub v} and the spectral index n{sub v} of the vector-shear power spectrum, from the Planck and BICEP2 B-mode data. We find that, for scale-invariant initial spectra, the ?CDM model including the vector mode fits the data better than the model including the tensor mode. The difference in ?{sup 2} between the vector and tensor models is ??{sup 2} = 3.294, because, on large scales the vector mode generates smaller temperature fluctuations than the tensor mode, which is preferred for the data. In contrast, the tensor mode can fit the data set equally well if we allow a significantly blue-tilted spectrum. We find that the best-fitting tensor mode has a large blue tilt and leads to an indistinct reionization bump on larger angular scales. The slightly red-tilted vector mode supported by the current data set can also create O(10{sup -22})-Gauss magnetic fields at cosmological recombination. Our constraints should motivate research that considers models of the early Universe that involve the vector mode.

  18. 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.

  19. Student and Volunteer Travel to Countries under US State Department Travel Warnings ASSUMPTION OF RISK AND RELEASE

    E-Print Network [OSTI]

    Ziurys, Lucy M.

    at http://ua-risk.terradotta.com/ and the US State Department's Smart Traveler Enrollment Program (STEP conditions; different standards of design, safety, and maintenance of buildings, public places

  20. College of Arts and Sciences Travel Award Application Please submit the following information to request a College of Arts and Sciences Travel Award. Programs may nominate

    E-Print Network [OSTI]

    Indiana University

    College of Arts and Sciences Travel Award Application Please submit the following information to request a College of Arts and Sciences Travel Award. Programs may nominate up to three students the College Graduate Office website for additional information: http

  1. R-mode astronomy

    E-Print Network [OSTI]

    Kokkotas, Kostas D

    2015-01-01

    Next generation gravitational wave detectors will start taking data in the near future. Here we discuss the chances to detect the continuous emission from r-mode oscillations in compact stars and study which properties of compact stars we can infer from such novel data. In particular we show that the combination of the gravitational wave data with electromagnetic multi-messenger observations could give us detailed insight into compact star properties, ranging from precise mass-radius measurements to the determination of the equation of state and the phase structure of dense matter.

  2. On the saturation amplitude of the f-mode instability

    E-Print Network [OSTI]

    Wolfgang Kastaun; Beatrix Willburger; Kostas D. Kokkotas

    2011-10-05

    We investigate strong nonlinear damping effects which occur during high amplitude oscillations of neutron stars, and the gravitational waves they produce. For this, we use a general relativistic nonlinear hydrodynamics code in conjunction with a fixed spacetime (Cowling approximation) and a polytropic equation of state (EOS). Gravitational waves are estimated using the quadrupole formula. Our main interest are l=m=2 f modes subject to the CFS (Chandrasekhar, Friedman, Schutz) instability, but we also investigate axisymmetric and quasiradial modes. We study various models to determine the influence of rotation rate and EOS. We find that axisymmetric oscillations at high amplitudes are predominantly damped by shock formation, while the nonaxisymmetric f modes are mainly damped by wave breaking and, for rapidly rotating models, coupling to nonaxisymmetric inertial modes. From the observed nonlinear damping, we derive upper limits for the saturation amplitude of CFS-unstable f modes. Finally, we estimate that the corresponding gravitational waves for an oscillation amplitude at the upper limit should be detectable with the advanced LIGO and VIRGO interferometers at distances above 10 MPc. This strongly depends on the stellar model, in particular on the mode frequency.

  3. University Of Aberdeen Sustainable Travel Plan 2013_2017 V1 0.Docx Page 1 of 18 University of Aberdeen Sustainable Travel Plan

    E-Print Network [OSTI]

    Neri, Peter

    . The development of a sustainable travel plan is a significant element in the fulfilment of our commitment to the University, and between University sites. reduce the environmental impact of travel associatedUniversity Of Aberdeen Sustainable Travel Plan 2013_2017 V1 0.Docx Page 1 of 18 University

  4. The Library for Distance Learners: Engineering

    E-Print Network [OSTI]

    Rzepa, Henry S.

    The Library for Distance Learners: Engineering Joining the Library You need your Library card to enter the Library building; to borrow and renew books; to use the Library's photocopying and printing facilities; and to use the Inter-Library Loans and Bath Copies services. All of the Library's electronic

  5. Structural Alignment Using the Generalized Euclidean Distance

    E-Print Network [OSTI]

    Plotkin, Steven S.

    : 3217­3228, 2009 Key words: protein folding; structural alignment; RMSD; MRSD; generalized distance configurations, and the so-called thermodynamic hypothesis in protein folding was born. This discovery underpinned the formalism that developed decades later to understand protein folding as a configurational

  6. PREPARING THE VIRTUAL CLASSROOM FOR DISTANCE DELIVERY

    E-Print Network [OSTI]

    Dyer, Bill

    of humans and their companion domestic animals and livestock. Students learn that there are certain "at riskPREPARING THE VIRTUAL CLASSROOM FOR DISTANCE DELIVERY: MEDICAL-VETERINARY ENTOMOLOGY CLINICS laboratory," library materials, conventional lectures and the 43 virtual patients in the clinics

  7. Phosphate single mode large mode area all-solid photonic crystal fiber with multi-watt output power

    SciTech Connect (OSTI)

    Wang, Longfei; He, Dongbing; Yu, Chunlei; Hu, Lili; Chen, Danping, E-mail: dpchen2008@aliyun.com [Key Laboratory of High Power Laser Materials, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China); University of Chinese Academy of Sciences, Beijing 100049 (China); Liu, Hui [Navigation Staff Room, Anhui Bengbu Petty Officer Academy of Navy, Bengbu 233000 (China); Qiu, Jianrong [Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510641 (China)

    2014-03-31

    An index-depressed active core, single-mode phosphate all-solid large-mode-area photonic crystal fiber (PCF) is theoretically investigated using full-vectorial finite difference approach and experimentally realized. The PCF has a maximum output power of 5.4?W and 31% slope efficiency. Single-mode operation is realized through PCFs with core diameters of 30, 35, and 40??m, respectively. The beam quality is not degraded even at maximum output power. Our simulations and experiments reveal that the laser performance is significantly affected by the center-to-center distance between the two nearest rods ?, the rod diameter d, and their ratio d/?, implying that much attention should be given in employing optimal parameters to achieve excellent laser performance.

  8. Activity Related Variations of High-Degree p-Mode Amplitude, Width and Energy in Solar Active Regions

    E-Print Network [OSTI]

    Maurya, R A; Chae, J

    2013-01-01

    We study the properties of high degree p-mode oscillations in flaring and dormant ARs and compare them with those in corresponding quiet regions (QRs) to find the association of mode parameters with magnetic and flare related activities. Our analysis of several flaring and dormant ARs, showed strong association of mode amplitude, width and energy with magnetic and flare activities although their changes are combined effects of foreshortening, filling factor, magnetic activity, flare activity, and measurement uncertainties. We find that the largest decrease in mode amplitude and background power of an AR are caused by the angular distance of the AR from the solar disc centre. After correcting the mode parameters for foreshortening and filling factor, we find that the mode amplitude of flaring and dormant ARs are smaller than in corresponding QRs, and decreases with increasing MAI suggesting a larger mode power suppression in ARs with stronger magnetic fields. The mode widths in ARs are larger than in correspon...

  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. Asymmetric plastic modes in disordered solids

    E-Print Network [OSTI]

    Luka Gartner; Edan Lerner

    2015-07-24

    We propose a framework within which a robust mechanical definition of precursors to plastic instabilities, often termed `soft-spots', naturally emerges. They are shown to be collective displacements (modes) $\\hat{z}_0$ that correspond to local minima of the `barrier function' $b(\\hat{z})$. The latter is derived from the cubic approximation of the variation $\\delta U_{\\hat{z}}(s)$ of the potential energy upon displacing particles a distance $s$ along $\\hat{z}$. We show that modes $\\hat{z}_0$ corresponding to low-lying minima of $b(\\hat{z})$ lead to transitions over energy barriers in the glass, and are therefore associated with highly asymmetric variations $\\delta U_{\\hat{z}}(s)$ with $s$. We further demonstrate how a heuristic search for local minima of $b(\\hat{z})$ can a-priori detect the locus and geometry of imminent plastic instabilities with remarkable accuracy, at strains as large as $\\gamma_c-\\gamma \\sim 10^{-2}$ away from the instability strain $\\gamma_c$, where the non-affine displacements under shear are still largely delocalized. Our findings suggest that the a-priori detection of plastic instabilities can be effectively carried out by the investigation of the landscape of $b(\\hat{z})$.

  12. Nonlinear plastic modes in disordered solids

    E-Print Network [OSTI]

    Luka Gartner; Edan Lerner

    2015-10-27

    We propose a framework within which a robust mechanical definition of precursors to plastic instabilities, often termed `soft-spots', naturally emerges. They are shown to be collective displacements (modes) $\\hat{z}_0$ that correspond to local minima of the `barrier function' $b(\\hat{z})$. The latter is derived from the cubic approximation of the variation $\\delta U_{\\hat{z}}(s)$ of the potential energy upon displacing particles a distance $s$ along $\\hat{z}$. We show that modes $\\hat{z}_0$ corresponding to low-lying minima of $b(\\hat{z})$ lead to transitions over energy barriers in the glass, and are therefore associated with highly asymmetric variations $\\delta U_{\\hat{z}}(s)$ with $s$. We further demonstrate how a heuristic search for local minima of $b(\\hat{z})$ can a-priori detect the locus and geometry of imminent plastic instabilities with remarkable accuracy, at strains as large as $\\gamma_c-\\gamma \\sim 10^{-2}$ away from the instability strain $\\gamma_c$, where the non-affine displacements under shear are still largely delocalized. Our findings suggest that the a-priori detection of plastic instabilities can be effectively carried out by the investigation of the landscape of $b(\\hat{z})$.

  13. Noisy traveling waves: effect of selection on genealogies

    E-Print Network [OSTI]

    E. Brunet; B. Derrida; A. H. Mueller; S. Munier

    2006-10-04

    For a family of models of evolving population under selection, which can be described by noisy traveling wave equations, the coalescence times along the genealogical tree scale like $\\log^\\alpha N$, where $N$ is the size of the population, in contrast with neutral models for which they scale like $N$. An argument relating this time scale to the diffusion constant of the noisy traveling wave leads to a prediction for $\\alpha$ which agrees with our simulations. An exactly soluble case gives trees with statistics identical to those predicted for mean-field spin glasses in Parisi's theory.

  14. Electron geodesic acoustic modes in electron temperature gradient mode turbulence

    SciTech Connect (OSTI)

    Anderson, Johan; Nordman, Hans [Department of Earth and Space Sciences, Chalmers University of Technology, SE-412 96 Goeteborg (Sweden); Singh, Raghvendra; Kaw, Predhiman [Institute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428 (India)

    2012-08-15

    In this work, the first demonstration of an electron branch of the geodesic acoustic mode (el-GAM) driven by electron temperature gradient (ETG) modes is presented. The work is based on a fluid description of the ETG mode retaining non-adiabatic ions and the dispersion relation for el-GAMs driven nonlinearly by ETG modes is derived. A new saturation mechanism for ETG turbulence through the interaction with el-GAMs is found, resulting in a significantly enhanced ETG turbulence saturation level compared to the mixing length estimate.

  15. Relevance Weighting Using Distance Between Term Occurrences David Hawking

    E-Print Network [OSTI]

    Hawking, David

    authors. 1 #12;Abstract Recent work has achieved promising retrieval performance using distance between

  16. Long working distance incoherent interference microscope

    DOE Patents [OSTI]

    Sinclair, Michael B. (Albuquerque, NM); De Boer, Maarten P. (Albuquerque, NM)

    2006-04-25

    A full-field imaging, long working distance, incoherent interference microscope suitable for three-dimensional imaging and metrology of MEMS devices and test structures on a standard microelectronics probe station. A long working distance greater than 10 mm allows standard probes or probe cards to be used. This enables nanometer-scale 3-dimensional height profiles of MEMS test structures to be acquired across an entire wafer while being actively probed, and, optionally, through a transparent window. An optically identical pair of sample and reference arm objectives is not required, which reduces the overall system cost, and also the cost and time required to change sample magnifications. Using a LED source, high magnification (e.g., 50.times.) can be obtained having excellent image quality, straight fringes, and high fringe contrast.

  17. What is the distance to the CMB?

    SciTech Connect (OSTI)

    Clarkson, Chris; Umeh, Obinna; Maartens, Roy; Durrer, Ruth E-mail: umeobinna@gmail.com E-mail: Ruth.Durrer@unige.ch

    2014-11-01

    The success of precision cosmology depends not only on accurate observations, but also on the theoretical model --- which must be understood to at least the same level of precision. Subtle relativistic effects can lead to biased measurements if they are neglected. One such effect gives a systematic shift in the distance-redshift relation away from its background value, due to the non-linear relativistic conservation of total photon flux. We also show directly how this shift follows from a fully relativistic analysis of the geodesic deviation equation. We derive the expectation value of the shift using second-order perturbations about a concordance background, and show that the distance to last scattering is increased by 1%. We argue that neglecting this shift could lead to a significant bias in the background cosmological parameters, because it alters the meaning of the background model. A naive adjustment of CMB parameter estimation if this shift is really a correction to the background would raise the H{sub 0} value inferred from the CMB by 5%, potentially removing the tension with local measurements of H{sub 0}. Other CMB parameters which depend on the distance would also be shifted by ? 1? when combined with local H{sub 0} data. While our estimations rely on a simplistic analysis, they nevertheless illustrate that accurately defining the background model in terms of the expectation values of observables is critical when we aim to determine the model parameters at the sub-percent level.

  18. Flow Distances on Open Flow Networks

    E-Print Network [OSTI]

    Guo, Liangzhu; Shi, Peiteng; Wang, Jun; Huang, Xiaohan; Zhang, Jiang

    2015-01-01

    Open flow network is a weighted directed graph with a source and a sink, depicting flux distributions on networks in the steady state of an open flow system. Energetic food webs, economic input-output networks, and international trade networks, are open flow network models of energy flows between species, money or value flows between industrial sectors, and goods flows between countries, respectively. Flow distances (first-passage or total) between any given two nodes $i$ and $j$ are defined as the average number of transition steps of a random walker along the network from $i$ to $j$ under some conditions. They apparently deviate from the conventional random walk distance on a closed directed graph because they consider the openness of the flow network. Flow distances are explicitly expressed by underlying Markov matrix of a flow system in this paper. With this novel theoretical conception, we can visualize open flow networks, calculating centrality of each node, and clustering nodes into groups. We apply fl...

  19. Apparatus and method for measuring and imaging traveling waves

    DOE Patents [OSTI]

    Telschow, Kenneth L. (Idaho Falls, ID); Deason, Vance A. (Idaho Falls, ID)

    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.

  20. Interpolation of raytheory travel times within ray cells

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Interpolation of ray­theory travel times within ray cells Petr Bulant & LudŸek KlimeŸs Department techniques. Several methods based on de­ composition of the model volume into ray cells, and on further interpolation within individual ray cells, were introduced. In the wavefront tracing method (Vinje et al. 1996a

  1. Interpolation of raytheory travel times within ray cells

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Interpolation of ray­theory travel times within ray cells Petr Bulant & LudŸek KlimeŸs Department title: Interpolation within ray cells Summary 3­D ray tracing followed by interpolation of the computed on the decomposition of the model volume into ray cells, and on further interpolation within the individual ray cells

  2. 30 March 2012 Manual Process for Creating Travel Orders When

    E-Print Network [OSTI]

    , the CBA administrator (Patricia Freeman (3211)) must be contacted to provide the CBA account number and CBA expiration date to SATO. 4) Go to SATO's web site, Virtually There, www in the Travel Module under "Other Transportation." (For CBA ticketed transportation, Ticket Amount, Number

  3. The Path Less Travelled: Overcoming Tor's Bottlenecks with Traffic Splitting

    E-Print Network [OSTI]

    Goldberg, Ian

    The Path Less Travelled: Overcoming Tor's Bottlenecks with Traffic Splitting Mashael AlSabah, Kevin of Computer Science University of Waterloo Abstract. Tor is the most popular low-latency anonymity network, Tor has a variety of performance problems that result in poor quality of service, a strong

  4. SIMON FRASER UNIVERSITY Travel and Business Expense Claim

    E-Print Network [OSTI]

    Bruin, Nils

    hereby certify that all expenses being claimed are net of any travel rebates, and agency discounts TO BE REIMBURSED GST REBATE * GST AMOUNT TO ENTER IN x 5/105 x 5/105 x 5/105 x 5/105 GST COLUMN ON PAGE 1 Above incurred outside Canada do not qualify for rebate. - It is the responsibility of the claimant department

  5. Development of a thermoacoustic travelling-wave refrigerator

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    mean pressure. By that way, conduction losses on the cold heat exchanger are minimized. However to an acoustic wave. Thereby, gas particle pressure and velocity oscillate around a mean value. According of a travelling-wave, acoustic pressure and velocity are in phase inducing a Stirling type cycle. Over an acoustic

  6. Approximation Algorithms for Multi-criteria Traveling Salesman Problems

    E-Print Network [OSTI]

    Al Hanbali, Ahmad

    +3-42 +, respectively. Moreover, we design ran- domized approximation algorithms for multi-criteria () -ATSP (ratio 1 2. Therefore, we design randomized approximation schemes for multi-criteria cycle cover problems by showingApproximation Algorithms for Multi-criteria Traveling Salesman Problems Bodo Manthey1 and L

  7. Advanced Plug-in Electric Vehicle Travel and Charging

    E-Print Network [OSTI]

    California at Davis, University of

    Advanced Plug-in Electric Vehicle Travel and Charging Behavior UC Davis Plug-in Hybrid and Electric Vehicle Research Center Michael Nicholas Thomas Turrentine Gil Tal #12;Project Overview · Provide most in-depth study of PEV usage and charging dynamics. Inform policy on battery size/vehicle architecture

  8. HsO Travel/Conference Fee Award Background

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    HsO Travel/Conference Fee Award Background: The main purpose of the Hatfield Students Organization to present their research findings at professional conferences related to their field of study. To support student participation in such conferences, HsO, has created an annual award of $250 to help finance

  9. An investigation of induced travel at mixed-use developments 

    E-Print Network [OSTI]

    Sperry, Benjamin Robert

    2009-05-15

    information about two trips made by the respondent, including whether the trip made at the time of the interview was induced. A trip was considered induced if the respondent would not have made the trip if it had required travel outside of Legacy Town Center...

  10. Wunderlich, Kaufman, and Smith LINK TRAVEL TIME PREDICTION FOR

    E-Print Network [OSTI]

    Smith, Robert L.

    . In the Decentralized Dynamic architecture, link-travel times are broadcast to vehicles to provide real-time estimates Architecture does project a gradual progression over time from Autonomous to Decentralized to Centralized route route guidance develops as a viable service. Centralized architectures are projected

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

    SciTech Connect (OSTI)

    Chen, Yi-Chiuan, E-mail: YCChen@math.sinica.edu.tw [Institute of Mathematics, Academia Sinica, Taipei 10617, Taiwan (China)] [Institute of Mathematics, Academia Sinica, Taipei 10617, Taiwan (China); Chen, Shyan-Shiou, E-mail: sschen@ntnu.edu.tw [Department of Mathematics, National Taiwan Normal University, Taipei 11677, Taiwan (China)] [Department of Mathematics, National Taiwan Normal University, Taipei 11677, Taiwan (China); Yuan, Juan-Ming, E-mail: jmyuan@pu.edu.tw [Department of Financial and Computational Mathematics, Providence University, Shalu, Taichung 43301, Taiwan (China)] [Department of Financial and Computational Mathematics, Providence University, Shalu, Taichung 43301, Taiwan (China)

    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.

  12. 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.

  13. the wave model A traveling wave is an organized disturbance

    E-Print Network [OSTI]

    Winokur, Michael

    1 waves the wave model A traveling wave is an organized disturbance propagating at a well-defined wave speed v. · In transverse waves the particles of the medium move perpendicular to the direction of wave propagation. · In longitudinal waves the particles of the medium move parallel to the direction

  14. Infiltration in Porous Media with Dynamic Capillary Pressure: Travelling Waves

    E-Print Network [OSTI]

    Hulshof, Joost

    Infiltration in Porous Media with Dynamic Capillary Pressure: Travelling Waves C. Cuesta # , C to gravity, results in a pseudo­parabolic Burgers type equation. We give a rigorous study of global of study in this paper. We confine ourselves to the particular case of unsaturated groundwater flow, where

  15. Continuum Cascade Model: Branching Random Walk for Traveling Wave

    E-Print Network [OSTI]

    Yoshiaki Itoh

    2015-07-15

    The food web is a directed graph in which nodes label species and directed links represent the predation between species. Cascade models generate random food webs. The recursion to obtain the probability distribution of the longest chain length has the solution with traveling wave. We consider a branching random walk to study the asymptotic probability on the wave front.

  16. How To Make a Greedy Heuristic for the Asymmetric Traveling

    E-Print Network [OSTI]

    Jäger, Gerold

    of cost values. We propose to use upper tolerances of an optimal solution to one of the relaxed Asymmetric (cost) of traveling from city i to city j is denoted by c(i, j). These costs are called symmetric if c, the problem of finding the most efficient drilling sequence is a TSP. More applications to Genome Sequencing

  17. Evolution equations: Frobenius integrability, conservation laws and travelling waves

    E-Print Network [OSTI]

    Geoff Prince; Naghmana Tehseen

    2015-06-07

    We give new results concerning the Frobenius integrability and solution of evolution equations admitting travelling wave solutions. In particular, we give a powerful result which explains the extraordinary integrability of some of these equations. We also discuss "local" conservations laws for evolution equations in general and demonstrate all the results for the Korteweg de Vries equation.

  18. Multi-dimensional laser mode combs (mode hyper-combs)

    E-Print Network [OSTI]

    Schwartz, Alon

    2012-01-01

    Laser frequency combs, as most lasers, are one-dimensional. Here we present a realization of d-dimensional laser mode lattices (mode hyper-combs) with unique properties. They are constructed from regular 1-dimensional combs by multi-frequency modulation in active mode-locking (AML). The hyper-comb, with near neighbor mode interaction and noise functioning as temperature, is mapped to interacting magnetic spin-lattices in the spherical-model, which is one of the few statistical-mechanics systems soluble in all dimensions. The important result is that such systems have, in d>2 dimensions, a phase-transition to a global mode-phase-ordered hyper-comb. It changes the nature of AML lasers, giving ultimately short and robust pulses which can capture very broad frequency bandwidths. Additionally, the hyper-combs can serve as a rare physical realization of the spherical-model in any dimension.

  19. Thermal entanglement of bosonic modes

    E-Print Network [OSTI]

    M. Asoudeh

    2006-07-21

    We study the change of entanglement under general linear transformation of modes in a bosonic system and determine the conditions under which entanglement can be generated under such transformation. As an example we consider the thermal entanglement between the vibrational modes of two coupled oscillators and determine the temperature above which quantum correlations are destroyed by thermal fluctuations.

  20. 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...

  1. Driving and passengering: notes on the ordinary organisation of car travel 

    E-Print Network [OSTI]

    Laurier, Eric; Lorimer, Hayden; Brown, Barry; Jones, Owain; Juhlin, Oskar; Noble, Allyson; Perry, Mark; Pica, Daniele; Sormani, Philippe; Strebel, Ignaz; Swan, Laurel; Taylor, Alex S; Watts, Laura; Weilenmann, Alexandra

    2008-01-01

    We spend ever increasing periods of our lives travelling in cars, yet quite what it is we do while travelling, aside from driving the vehicle itself, is largely overlooked. Drawing on analyses of video records of a series ...

  2. 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...

  3. How Do You Go Green When You Travel? | Department of Energy

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

    be green. Choices such as less frequent linen service are opportunities to save water and energy while traveling. How do you go green when you travel? E-mail your responses to the...

  4. Energy Secretary Steven Chu to Travel to Bay Area to Highlight...

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

    Energy Secretary Steven Chu to Travel to Bay Area to Highlight State of the Union Address, Commitment to Clean Energy Energy Secretary Steven Chu to Travel to Bay Area to Highlight...

  5. Student Travel to Pan-Am Congress of Plants & Biofuels in Merida...

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

    Student Travel to Pan-Am Congress of Plants & Biofuels in Merida, Mexico Re-direct Destination: Department of Energy - Final Technical Report Grant Title: Student Travel to Pan-Am...

  6. 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...

  7. 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...

  8. Georgia Institute of Technology School of Chemistry and Biochemistry Johnson Graduate Student Travel Funds

    E-Print Network [OSTI]

    Sherrill, David

    Georgia Institute of Technology School of Chemistry and Biochemistry Johnson Graduate Student Travel funds may be used to meet any remaining costs not covered by the research advisor, SGA award_____________________________________________________ Total estimated costs for attending conference Transportation $_______________ Other Travel

  9. TRAVELING-WAVE TUBE AMPLIFIER CHARACTERISTICS STUDY FOR STOCHASTIC BEAM COOLING EXPERIMENTS

    E-Print Network [OSTI]

    Leskovar, B.

    2010-01-01

    Power Gallium-Arsenide Field- Effect Transistors and Helix Traveling-Wave Tubes (TWT) were considered as potential

  10. A review of "Literature and Domestic Travel in Early Modern England" by Andrew McRae 

    E-Print Network [OSTI]

    Aune, M. G.

    2012-01-01

    Rae. Literature and Domestic Travel in Early Modern England. Cambridge: Cambridge University Press, 2009. xi + 247 pp. + 9 illus. $90.00. Review by ?.?. ????, ?? ??????? ?????????? ?? ?????? ?????. ?e work of Andrew McRae, professor of English... latest work, adding travel narratives, maps, and travel guides. McRae uses mobility as his access point into domestic travel, writing in the introduction that ?mobility lent shape to some of the de?nitive transformations of the era: from the shift...

  11. Distances and absolute magnitudes from trigonometric parallaxes

    E-Print Network [OSTI]

    F. Arenou; X. Luri

    1998-12-04

    We first review the current knowledge of Hipparcos systematic and random errors, in particular small-scale correlations. Then, assuming Gaussian parallax errors and using examples from the recent Hipparcos literature, we show how random errors may be misinterpreted as systematic errors, or transformed into systematic errors. Finally we summarise how to get unbiased estimates of absolute magnitudes and distances, using either Bayesian or non-parametrical methods. These methods may be applied to get either mean quantities or individual estimates. In particular, we underline the notion of astrometry-based luminosity, which avoids the truncation biases and allows a full use of Hipparcos samples.

  12. The hydrogen bond network of water supports propagating optical phonon-like modes

    E-Print Network [OSTI]

    Daniel C. Elton; M. -V. Fernández-Serra

    2015-11-03

    The local structure of liquid water as a function of temperature is a source of intense research. This structure is intimately linked to the dynamics of water molecules, which can be measured using Raman and infrared spectroscopies. The assignment of spectral peaks depends on whether they are collective modes or single molecule motions. Vibrational modes in liquids are usually considered to be associated to the motions of single molecules or small clusters. Using molecular dynamics simulations we find dispersive optical phonon-like modes in the librational and OH stretching bands. We argue that on subpicosecond time scales these modes propagate through water's hydrogen bond network over distances of up to two nanometers. In the long wavelength limit these optical modes exhibit longitudinal-transverse splitting, indicating the presence of coherent long range dipole-dipole interactions, as in ice. Our results indicate the dynamics of liquid water have more similarities to ice than previously thought.

  13. PPrreesseenntteedd bbyy tthhee FFAAUU TTrraavveell OOffffiiccee Year End Processing in Banner Travel

    E-Print Network [OSTI]

    Fernandez, Eduardo

    Travel: Between July 1, 2011 and until August 1, 2011, both the 2011 fiscal year and the 2012 fiscal year Travel Authorizations for Travel (TA forms), a delegate can control which fiscal year is affected by setting the report date given in the general information section, as seen here: If the report date is set

  14. TAKE-HOME EXP. # 7a Light Imagined as Traveling in Straight Lines

    E-Print Network [OSTI]

    Pickett, Galen T.

    TAKE-HOME EXP. # 7a Light Imagined as Traveling in Straight Lines: Sun Images in the Shade of a Tree. Our ordinary senses imply that light travels in a straight line. In fact, Isaac Newton was so convinced of light's straight-line travel that he proposed a particle model for light, saying: "Are

  15. Reconciling Pcard Travel Justin Walters 277-0057 jwalters@unm.edu

    E-Print Network [OSTI]

    New Mexico, University of

    -2019 wirthl@unm.edu #12;Overview o All prepaid travel purchases must be reconciled to a DPEZ. o Be sure all travel documents are submitted together on one DPEZ. (Prepaid, out-of-pocket, meal per diem, etc.) o Workflow o Developed to assist in reconciling prepaid travel purchases made with a Pcard. o $0 DPEZ's o

  16. OP 79.05: International Travel DATE: Tracked1/17/14

    E-Print Network [OSTI]

    Rock, Chris

    of international travel to countries outside the United States. REVIEW: This OP will be reviewed in November of odd that is subject to a travel advisory issued by the United States Department of State. OIA will determine.024, Texas Government Code (Vernon's Civil Statutes Supplement, 2002), all international travel by state

  17. Travel{time calculation in heterogeneous 3-D structures * Lud ek Klime s

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Travel{time calculation in heterogeneous 3-D structures * Lud#20;ek Klime#20;s Department-mail: psencik@earn.cvut.cz Summary The selection of the numerical method to calculate travel times depends on the nature of the travel times, on the complexity and computer representation of the seismic model

  18. Numerical studies of current generation by radio-frequency traveling waves

    E-Print Network [OSTI]

    Karney, Charles

    Numerical studies of current generation by radio-frequency traveling waves Charles F. F. Karney January 1979; final manuscript received 7 May 1979) By injecting radio-frequency traveling waves of the fusion power output. Recently,' the damping of high-phase-velocity radio- frequency traveling waves has

  19. PLANNING-LEVEL METHODOLOGY FOR EVALUATING TRAVELER INFORMATION PROVISION STRATEGIES UNDER STOCHASTIC CAPACITY CONDITIONS

    E-Print Network [OSTI]

    Zhou, Xuesong

    Research and Education (ITRE) Department of Civil, Construction and Environmental Engineering North and varying degrees of traveler knowledge in an advanced traveler information provision environment to a simple corridor and medium-scale networks to illustrate the effectiveness of traveler information under

  20. The UNIVERSITY of WESTERN ONTARIO TRAVEL POLICY SUPPLEMENT AS RELATED TO RESEARCH

    E-Print Network [OSTI]

    Lennard, William N.

    The UNIVERSITY of WESTERN ONTARIO TRAVEL POLICY SUPPLEMENT AS RELATED TO RESEARCH The purpose. Page 1 of 6 The University of Western Ontario Travel and Expense Reimbursement Policy 2.16 Tri-Council #12;The UNIVERSITY of WESTERN ONTARIO TRAVEL POLICY SUPPLEMENT AS RELATED TO RESEARCH The purpose

  1. New Travel and Expense Management Tool: Chrome River coming July 1, 2015

    E-Print Network [OSTI]

    expense reports, run inquiry reports and submit Small Business Expense reimbursements. Chrome River hasNew Travel and Expense Management Tool: Chrome River coming July 1, 2015 Do you travel on behalf you have a non-ODU employee that needs to be reimbursed for travel? Then Chrome River is for you

  2. ASSESSMENT OF WAKE VORTEX SEPARATION DISTANCES USING THE WAVIR TOOLSET

    E-Print Network [OSTI]

    ) and Failure Modes and Effects Analysis (FMEA), are not easily applied due the dynamic stochastic nature

  3. Mode Competition in Dual-Mode Quantum Dots Semiconductor Microlaser

    E-Print Network [OSTI]

    Chusseau, Laurent; Viktorovitch, P; Letartre, Xavier

    2013-01-01

    This paper describes the modeling of quantum dots lasers with the aim of assessing the conditions for stable cw dual-mode operation when the mode separation lies in the THz range. Several possible models suited for InAs quantum dots in InP barriers are analytically evaluated, in particular quantum dots electrically coupled through a direct exchange of excitation by the wetting layer or quantum dots optically coupled through the homogeneous broadening of their optical gain. A stable dual-mode regime is shown possible in all cases when quantum dots are used as active layer whereas a gain medium of quantum well or bulk type inevitably leads to bistable behavior. The choice of a quantum dots gain medium perfectly matched the production of dual-mode lasers devoted to THz generation by photomixing.

  4. Mode Competition in Dual-Mode Quantum Dots Semiconductor Microlaser

    E-Print Network [OSTI]

    Laurent Chusseau; Fabrice Philippe; P. Viktorovitch; Xavier Letartre

    2013-03-07

    This paper describes the modeling of quantum dots lasers with the aim of assessing the conditions for stable cw dual-mode operation when the mode separation lies in the THz range. Several possible models suited for InAs quantum dots in InP barriers are analytically evaluated, in particular quantum dots electrically coupled through a direct exchange of excitation by the wetting layer or quantum dots optically coupled through the homogeneous broadening of their optical gain. A stable dual-mode regime is shown possible in all cases when quantum dots are used as active layer whereas a gain medium of quantum well or bulk type inevitably leads to bistable behavior. The choice of a quantum dots gain medium perfectly matched the production of dual-mode lasers devoted to THz generation by photomixing.

  5. Improved Long-Distance Wireless Charging Technology September 26, 2013

    E-Print Network [OSTI]

    Langendoen, Koen

    Improved Long-Distance Wireless Charging Technology September 26, 2013 Project Overview Wireless charging of consumer devices at a long distance with RF technology, would eliminate wires and give freedom

  6. Beyond Kennicott : perceptions of threshold, conceptions of distance

    E-Print Network [OSTI]

    Bull, Steven Keith

    1997-01-01

    Threshold: The thesis explores descriptions of threshold. Threshold is not an ordinary space. It relates to the here and the there and the understanding of distance. It is the phenomena of distance, no matter how close ...

  7. The solar neighborhood. XXXV. Distances to 1404 M dwarf systems...

    Office of Scientific and Technical Information (OSTI)

    solar neighborhood. XXXV. Distances to 1404 M dwarf systems within 25 PC in the southern sky Citation Details In-Document Search Title: The solar neighborhood. XXXV. Distances to...

  8. Perceptions of Distance Education in Newfoundland and Labrador: 1999 2009

    E-Print Network [OSTI]

    Oyet, Alwell

    Perceptions of Distance Education in Newfoundland and Labrador: 1999 ­ 2009 ................................................................................................................. 5 I. Study conducted in 1999 ­ 2000 ........................................................................................................... 80 #12; 5 Perceptions of Distance Education in Newfoundland and Labrador: 1999 2009

  9. Multi-mode radio frequency device

    DOE Patents [OSTI]

    Gilbert, Ronald W. (Morgan Hill, CA); Carrender, Curtis Lee (Morgan Hill, CA); Anderson, Gordon A. (Benton City, WA); Steele, Kerry D. (Kennewick, WA)

    2007-02-13

    A transponder device having multiple modes of operation, such as an active mode and a passive mode, wherein the modes of operation are selected in response to the strength of a received radio frequency signal. A communication system is also provided having a transceiver configured to transmit a radio frequency signal and to receive a responsive signal, and a transponder configured to operate in a plurality of modes and to activate modes of operation in response to the radio frequency signal. Ideally, each mode of operation is activated and deactivated independent of the other modes, although two or more modes may be concurrently operational.

  10. Time travel, Clock Puzzles and Their Experimental Tests

    E-Print Network [OSTI]

    Ignazio Ciufolini

    2013-06-07

    Is time travel possible? What is Einstein's theory of relativity mathematically predicting in that regard? Is time travel related to the so-called clock 'paradoxes' of relativity and if so how? Is there any accurate experimental evidence of the phenomena regarding the different flow of time predicted by General Relativity and is there any possible application of the temporal phenomena predicted by relativity to our everyday life? Which temporal phenomena are predicted in the vicinities of a rotating body and of a mass-energy current, and do we have any experimental test of the occurrence of these phenomena near a rotating body? In this paper, we address and answer some of these questions.

  11. OBJECTIVE DISTANCE MEASURES FOR SPECTRAL DISCONTINUITIES IN CONCATENATIVE SPEECH SYNTHESIS

    E-Print Network [OSTI]

    Edinburgh, University of

    - efficientscouldimprovetheprediction. StylianouandSyrdal [4] found that the Kullback-Leibler distance between FFT- based power spectra

  12. Dendritic Actin Filament Nucleation Causes Traveling Waves and Patches

    E-Print Network [OSTI]

    Anders E. Carlsson

    2010-05-28

    The polymerization of actin via branching at a cell membrane containing nucleation-promoting factors is simulated using a stochastic-growth methodology. The polymerized-actin distribution displays three types of behavior: a) traveling waves, b) moving patches, and c) random fluctuations. Increasing actin concentration causes a transition from patches to waves. The waves and patches move by a treadmilling mechanism which does not require myosin II. The effects of downregulation of key proteins on actin wave behavior are evaluated.

  13. Deputy Secretary Poneman to Travel to Russia | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department8, 20153Danielthrough theK APolicyonStatesinJapan |Travel to

  14. GPS Travel Survey Data Collection and Analysis | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum12,Executive Compensation References: FARWashers | DepartmentGNEPGPS Travel

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

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterestedReplacement-2-AA-1 SECTIONEnergy ScientistsinArab EmiratesandofTravels to

  16. NEUP Foreign Travel Request Form | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested Parties -Department of EnergyNEW1 NEPAOctober 29,ExcellenceForeign Travel

  17. UC San Diego Student Certification for Business-Related Travel Please complete this form and attach it to the MyTravel trip for any student travel reimbursement that is certified to be

    E-Print Network [OSTI]

    UC San Diego Student Certification for Business-Related Travel Please complete this form and attach. This certification must be completed by the student and certified by a UC San Diego faculty member, a Principal Investigator (PI), or administrator. Reimbursement for UC San Diego Business-Related Travel To be completed

  18. Preliminaries Conserved Interval Distance between Non-trivial

    E-Print Network [OSTI]

    Blin, Guillaume

    Outline Preliminaries Results Conclusion Conserved Interval Distance between Non-trivial Genomes.Rizzi@unitn.it August the 16th Guillaume Blin, Romeo Rizzi Conserved Interval Distance between Non-trivial Genomes #12 Guillaume Blin, Romeo Rizzi Conserved Interval Distance between Non-trivial Genomes #12;Outline

  19. Problems of Distance-Regular Graphs Hiroshi Suzuki

    E-Print Network [OSTI]

    Xi, Changchang

    ­328. [14] H. Suzuki, The Terwilliger algebra associated with a set of vertices in a distance-regular graph, J. Alg. Combin. 22 (2005), 5-38. [15] P. Terwilliger, Distance-regular graphs and (s, c, a, k)-graphs, J. Combin. Th. (B) 34 (1983), 151­164. [16] P. Terwilliger, A new inequality for distance

  20. Week 4: History / philosophy, distance methods January, 2010

    E-Print Network [OSTI]

    Borenstein, Elhanan

    Week 4: History / philosophy, distance methods Genome 570 January, 2010 Week 4: History Gaylord Simpson (1902-1984) Week 4: History / philosophy, distance methods ­ p.2/73 #12;A horse tree drawn by Simpson Week 4: History / philosophy, distance methods ­ p.3/73 #12;A phylogeny of the living Craniata

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

    DOE Patents [OSTI]

    Praeg, Walter F. (Palos Park, IL)

    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.

  2. Decoherence of interacting Majorana modes

    E-Print Network [OSTI]

    H. T. Ng

    2015-07-31

    We study the decoherence of Majorana modes of a fermion chain, where the fermions interact with their nearest neighbours. We investigate the effect of dissipation and dephasing on the Majorana modes of a fermionic chain. The dissipative and dephasing noises induce the non-parity- and parity-preserving transitions between the eigenstates of the system, respectively. Therefore, these two types of noises lead to the different decoherence mechanisms. In each type of noise, we discuss the low- and high-frequency regimes to describe the different environments. We numerically calculate the dissipation and dephasing rates in the presence of long-range interactions. We find that the decoherence rate of interacting Majorana modes is different to that of non-interacting modes. We show the examples that the long-range interactions can reduce the decoherence rate. It is advantageous to the potential applications of quantum information processing.

  3. 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.

  4. Quantum correlations of helicity entangled states in non-inertial frames beyond single mode approximation

    SciTech Connect (OSTI)

    Harsij, Zeynab Mirza, Behrouz

    2014-12-15

    A helicity entangled tripartite state is considered in which the degree of entanglement is preserved in non-inertial frames. It is shown that Quantum Entanglement remains observer independent. As another measure of quantum correlation, Quantum Discord has been investigated. It is explicitly shown that acceleration has no effect on the degree of quantum correlation for the bipartite and tripartite helicity entangled states. Geometric Quantum Discord as a Hilbert–Schmidt distance is computed for helicity entangled states. It is shown that living in non-inertial frames does not make any influence on this distance, either. In addition, the analysis has been extended beyond single mode approximation to show that acceleration does not have any impact on the quantum features in the limit beyond the single mode. As an interesting result, while the density matrix depends on the right and left Unruh modes, the Negativity as a measure of Quantum Entanglement remains constant. Also, Quantum Discord does not change beyond single mode approximation. - Highlights: • The helicity entangled states here are observer independent in non-inertial frames. • It is explicitly shown that Quantum Discord for these states is observer independent. • Geometric Quantum Discord is also not affected by acceleration increase. • Extending to beyond single mode does not change the degree of entanglement. • Beyond single mode approximation the degree of Quantum Discord is also preserved.

  5. Evaluation of Some Blockcipher Modes of Operation

    E-Print Network [OSTI]

    Rogaway, Phillip

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 4. CBC, CFB, and OFB Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 5. CTR; many are widely used. The modes under consideration are the encryption schemes ECB, CBC, CFB, OFB, CTR

  6. INTERNATIONAL TRAVEL AND EXPORT CONTROL REGULATIONS When traveling abroad, faculty, staff and students at the University of Nebraska-Lincoln should be familiar with

    E-Print Network [OSTI]

    Farritor, Shane

    1 INTERNATIONAL TRAVEL AND EXPORT CONTROL REGULATIONS When traveling abroad, faculty, staff and students at the University of Nebraska-Lincoln should be familiar with the impact of export control/or invoke prison sentences for individuals violating the export control and embargo laws. These fines

  7. Scissors modes: The first overtone

    SciTech Connect (OSTI)

    Hatada, Keisuke [Instituto de Ciencia de Materiales de Aragon, CSIC-Universidad de Zaragoza, E-50009 Zaragoza (Spain); INFN Laboratori Nazionali di Frascati, c.p. 13, I-00044 Frascati (Italy); Hayakawa, Kuniko [INFN Laboratori Nazionali di Frascati, c.p. 13, I-00044 Frascati (Italy); Centro Fermi, Compendio Viminale, Roma I-00184 (Italy); Palumbo, Fabrizio [INFN Laboratori Nazionali di Frascati, c.p. 13, I-00044 Frascati (Italy)

    2011-07-15

    Scissors modes were predicted in the framework of the two-rotor model. This model has an intrinsic harmonic spectrum, so that the level above the scissors mode, the first overtone, has excitation energy twice that of the scissors mode. Because the latter is of the order of 3 MeV in the rare-earth region, the energy of the overtone is below threshold for nucleon emission, and its width should remain small enough for the overtone to be observable. We find that B(E2){up_arrow}{sub overtone}=(1/64 {theta}{sub 0}{sup 2})B(E2){up_arrow}{sub scissors}, where {theta}{sub 0} is the zero-point oscillation amplitude, which in the rare-earth region is of order 10{sup -1}.

  8. Space efficient streaming algorithms for the distance to monotonicity and asymmetric edit distance

    E-Print Network [OSTI]

    Saks, Michael

    2012-01-01

    Approximating the length of the longest increasing sequence (LIS) of a data stream is a well-studied problem. There are many algorithms that estimate the size of the complement of the LIS, referred to as the \\emph{distance to monotonicity}, both in the streaming and property testing setting. Let $n$ denote the size of an input array. Our aim is to develop a one-pass streaming algorithm that accurately approximates the distance to monotonicity, and only uses polylogarithmic storage. For any $\\delta > 0$, our algorithm provides a $(1+\\delta)$-multiplicative approximation for the distance, and uses only $O((\\log^2 n)/\\delta)$ space. The previous best known approximation using poly-logarithmic space was a multiplicative 2-factor. Our algorithm is simple and natural, being just 3 lines of pseudocode. It is essentially a polylogarithmic space implementation of a classic dynamic program that computes the LIS. Our technique is more general and is applicable to other problems that are exactly solvable by dynamic progr...

  9. Travelers Rest, South Carolina: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al., 2013)OpenEnergyTrail Canyonsource HistoryFuelTravale 3Travelers Rest,

  10. Complex groundwater flow systems as traveling agent models

    E-Print Network [OSTI]

    López-Corona, Oliver; Escolero, Oscar; González, Tomás; Morales-Casique, Eric

    2014-01-01

    Analyzing field data from pumping tests, we show that as with many other natural phenomena, groundwater flow exhibits a complex dynamics described by 1/f power spectrum. This result is theoretically studied within an agent perspective. Using a traveling agent model, we prove that this statistical behavior emerges when the medium is complex. Some heuristic reasoning is provided to justify both spatial and dynamic complexity, as the result of the superposition of an infinite number of stochastic processes. Even more, we show that this implies that non-Kolmogorovian probability is needed for its study, and provide a set of new partial differential equations for groundwater flow.

  11. Travel & Hotels | Center for Energy Efficient Materials

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAbout / TransformingTransuranic Waste Retrieval andTravel &

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEY UNIVERSEHow ORISE is MakingScienceOak RidgeTrainingTravelers'

  13. Moving Large Data Sets Over High-Performance Long Distance Networks

    SciTech Connect (OSTI)

    Hodson, Stephen W [ORNL; Poole, Stephen W [ORNL; Ruwart, Thomas [ORNL; Settlemyer, Bradley W [ORNL

    2011-04-01

    In this project we look at the performance characteristics of three tools used to move large data sets over dedicated long distance networking infrastructure. Although performance studies of wide area networks have been a frequent topic of interest, performance analyses have tended to focus on network latency characteristics and peak throughput using network traffic generators. In this study we instead perform an end-to-end long distance networking analysis that includes reading large data sets from a source file system and committing large data sets to a destination file system. An evaluation of end-to-end data movement is also an evaluation of the system configurations employed and the tools used to move the data. For this paper, we have built several storage platforms and connected them with a high performance long distance network configuration. We use these systems to analyze the capabilities of three data movement tools: BBcp, GridFTP, and XDD. Our studies demonstrate that existing data movement tools do not provide efficient performance levels or exercise the storage devices in their highest performance modes. We describe the device information required to achieve high levels of I/O performance and discuss how this data is applicable in use cases beyond data movement performance.

  14. The Effect of Metallicity on Cepheid-Based Distances

    E-Print Network [OSTI]

    Shoko Sakai; Laura Ferrarese; Rob Kennicutt; Abi Saha

    2004-02-20

    We have used the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope to obtain V and I images of seven nearby galaxies. For each, we have measured a distance using the tip of the red giant branch (TRGB) method. By comparing the TRGB distances to published Cepheid distances, we investigate the metallicity dependence of the Cepheid period-luminosity relation. Our sample is supplemented by 10 additional galaxies for which both TRGB and Cepheid distances are available in the literature, thus providing a uniform coverage in Cepheid abundances between 1/20 and 2 (O/H)solar. We find that the difference between Cepheid and TRGB distances decreases monotonically with increasing Cepheid abundance, consistent with a mean metallicity dependence of the Cepheid distance moduli of (delta(m-M))/(delta[O/H]) = -0.24 +- 0.05 mag/dex.

  15. Cepheid Variables and their Application to the Cosmological Distance Scale 

    E-Print Network [OSTI]

    Hoffmann, Samantha L

    2013-05-02

    . . . . . . . . . . . . . . . . . . . . . . . . . . 55 3. DIFFERENCE IMAGING ANALYSIS OF TYPE IA SUPERNOVA HOST NGC 5584 FOR CEPHEID VARIABLES . . . . . . . . . . . . . . . . . . 63 3.1 Motivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 3.2 Observations and Data Reduction... and type Ia supernovae (SNe Ia). This cosmological distance scale started with a geometric distance measurement of Cepheids, such as parallaxes by [5]. The Cepheid Period-Luminosity relation was characterized by [79] for use as a primary distance...

  16. 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.

  17. Discovering the Nature of Dark Energy: Towards Better Distances...

    Office of Scientific and Technical Information (OSTI)

    Discovering the Nature of Dark Energy: Towards Better Distances from Type Ia Supernovae -- Final Technical Report Filippenko, Alexei Vladimir Univ. California, Berkeley 79...

  18. The Design, Construction, and Operation of Long-Distance High...

    Open Energy Info (EERE)

    The Design, Construction, and Operation of Long-Distance High-Voltage Electricity Transmission Technologies Jump to: navigation, search OpenEI Reference LibraryAdd to library...

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

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

    January 14, 2008 and travel to Jordan, Saudi Arabia, United Arab Emirates, Qatar and Egypt. "To increase global energy security, producing and consuming nations alike must make...

  20. Feasibility of the Interferometric Neighboring Fracture Method and Improved Relative Travel Time Measurement 

    E-Print Network [OSTI]

    Shtaygrud, Ilaan

    2014-12-16

    The recently proposed Interferometric Neighboring Fracture (INF) localization method places unique and demanding constraints on relative travel time measurement accuracy and precision, while sampling a function of relative ...

  1. Peak Travel, Peak Car and the Future of Mobility: Evidence, Unresolved...

    Open Energy Info (EERE)

    Peak Travel, Peak Car and the Future of Mobility: Evidence, Unresolved Issues, Policy Implications, and a Research Agenda Jump to: navigation, search Tool Summary LAUNCH TOOL Name:...

  2. Evaluating the Impact of Neighborhood Trail Development on Active Travel Behavior and Overall Physical Activity

    E-Print Network [OSTI]

    Burbidge, Shaunna Kay

    2008-01-01

    project. Project Staff West Valley Travel Behavior Research3600 Constitution Blvd. West Valley City, UT 84119-3720 *of California- Santa Barbara, West Valley City, Salt Lake

  3. Recent Advances in Wave Travel Time Based Methodology for Structural Health Monitoring

    E-Print Network [OSTI]

    Southern California, University of

    identify wave velocity profiles of vertically propagating shear and torsional waves through the building monitoring, seismic interferometry, wave travel time 1. INTRODUCTION The ability to monitor the health

  4. Strong transmission and reflection of edge modes in bounded photonic graphene

    E-Print Network [OSTI]

    Ablowitz, Mark J

    2015-01-01

    The propagation of linear and nonlinear edge modes in bounded photonic honeycomb lattices formed by an array of rapidly varying helical waveguides is studied. These edge modes are found to exhibit strong transmission (reflection) around sharp corners when the dispersion relation is topologically nontrivial (trivial), and can also remain stationary. An asymptotic theory is developed that establishes the presence (absence) of edge states on all four sides, including in particular armchair edge states, in the topologically nontrivial (trivial) case. In the presence of topological protection, nonlinear edge solitons can persist over very long distances.

  5. Differential rotation of the unstable nonlinear r-modes

    E-Print Network [OSTI]

    Friedman, John L; Lockitch, Keith H

    2015-01-01

    At second order in perturbation theory, the $r$-modes of uniformly rotating stars include an axisymmetric part that can be identified with differential rotation of the background star. If one does not include radiation-reaction, the differential rotation is constant in time and has been computed by S\\'a. It has a gauge dependence associated with the family of time-independent perturbations that add differential rotation to the unperturbed equilibrium star: For stars with a barotropic equation of state, one can add to the time-independent second-order solution arbitrary differential rotation that is stratified on cylinders (that is a function of distance $\\varpi$ to the axis of rotation). We show here that the gravitational radiation-reaction force that drives the $r$-mode instability removes this gauge freedom: The expontially growing differential rotation of the unstable second-order $r$-mode is unique. We derive a general expression for this rotation law for Newtonian models and evaluate it explicitly for s...

  6. Risk Distance: The Loss of Strength Gradient and Colombia's Geography of Impunity

    E-Print Network [OSTI]

    Demarest, Geoffrey

    2013-12-31

    The dissertation proposes a theoretical category of distance, risk distance, as a prompt for understanding outcomes in internal armed struggles. Geographers are familiar with cost distance -- conceiving distance according ...

  7. Ris-R-1518(EN) The necessary distance between large

    E-Print Network [OSTI]

    Risø-R-1518(EN) The necessary distance between large wind farms offshore - study Sten Frandsen. As it is often the need for offshore wind farms, the model handles a regular array-geometry with straight rows distance between large wind farms in the offshore environment. The main results are given in Section 1

  8. A novel molecular index for secondary oil migration distance

    E-Print Network [OSTI]

    alteration of buried organic matter in source rocks, followed by oil expulsion (primary migration) outA novel molecular index for secondary oil migration distance Liuping Zhang1 , Maowen Li2 , Yang migration distances from source rocks to reservoirs can greatly help in the search for new petroleum

  9. On maximal instances for the original syntenic distance Cedric Chauve

    E-Print Network [OSTI]

    Chauve, Cedric

    genomes has been introduced by Ferretti, Nadeau and Sanko#11; as an approximation of the evolutionary distance between genomes for which the gene order is not known. This distance is the minimum number of fusions, #12;ssions and translocations required to transform a genome into an other. Kleinberg and Liben

  10. CHAOTIC DATA ENCRYPTION FOR LONG-DISTANCE MONITORING OF NUCLEAR

    E-Print Network [OSTI]

    Koksal, Can Emre

    matrix = Lorenz system parameter = Lorenz system parameter = excess delayed neutron precursorsCHAOTIC DATA ENCRYPTION FOR LONG-DISTANCE MONITORING OF NUCLEAR REACTORS Günyaz Ablay The Ohio DATA ENCRYPTION FOR LONG-DISTANCE MONITORING OF NUCLEAR REACTORS Günyaz Ablay1 , C. Emre Koksal2

  11. Patterns in Offender Distance Decay and the Geographic Profiling Problem.

    E-Print Network [OSTI]

    O'Leary, Michael

    Patterns in Offender Distance Decay and the Geographic Profiling Problem. Mike O'Leary Towson University 2010 Fall Western Section Meeting Los Angeles, CA October 9-10, 2010 Mike O'Leary (Towson Department for his assistance. Mike O'Leary (Towson University) Offender Distance Decay October 9, 2010 2

  12. Patterns in Offender Distance Decay and the Geographic Profiling Problem.

    E-Print Network [OSTI]

    O'Leary, Michael

    Patterns in Offender Distance Decay and the Geographic Profiling Problem. Mike O'Leary Towson University 2011 Crime Mapping Conference Miami, FL October 19-21, 2011 Mike O'Leary (Towson University Department for his assistance. Mike O'Leary (Towson University) Offender Distance Decay October 21, 2011 2

  13. Introduction The median problem for the reversal distance in

    E-Print Network [OSTI]

    Lonardi, Stefano

    genomes E. Ohlebusch, M.I. Abouelhoda, K. Hockel, J. Stallkamp University of Ulm, Germany CPM 2005 The median problem for the reversal distance in circular bacterial genomes #12;Introduction Methods Conclusion General Problem Distances Specific Problem Median Problem Given 3 genomes G1, G2, and G3, find

  14. Kinetic distance and kinetic maps from molecular dynamics simulation

    E-Print Network [OSTI]

    Noe, Frank

    2015-01-01

    Characterizing macromolecular kinetics from molecular dynamics (MD) simulations requires a distance metric that can distinguish slowly-interconverting states. Here we build upon diffusion map theory and define a kinetic distance for irreducible Markov processes that quantifies how slowly molecular conformations interconvert. The kinetic distance can be computed given a model that approximates the eigenvalues and eigenvectors (reaction coordinates) of the MD Markov operator. Here we employ the time-lagged independent component analysis (TICA). The TICA components can be scaled to provide a kinetic map in which the Euclidean distance corresponds to the kinetic distance. As a result, the question of how many TICA dimensions should be kept in a dimensionality reduction approach becomes obsolete, and one parameter less needs to be specified in the kinetic model construction. We demonstrate the approach using TICA and Markov state model (MSM) analyses for illustrative models, protein conformation dynamics in bovine...

  15. Linear relaxation to planar Travelling Waves in Inertial Confinement Fusion

    E-Print Network [OSTI]

    Monsaingeon, Léonard

    2012-01-01

    We study linear stability of planar travelling waves for a scalar reaction-diffusion equation with non-linear anisotropic diffusion. The mathematical model is derived from the full thermo-hydrodynamical model describing the process of Inertial Confinement Fusion. We show that solutions of the Cauchy problem with physically relevant initial data become planar exponentially fast with rate $s(\\eps',k)>0$, where $\\eps'=\\frac{T_{min}}{T_{max}}\\ll 1$ is a small temperature ratio and $k\\gg 1$ the transversal wrinkling wavenumber of perturbations. We rigorously recover in some particular limit $(\\eps',k)\\rightarrow (0,+\\infty)$ a dispersion relation $s(\\eps',k)\\sim \\gamma_0 k^{\\alpha}$ previously computed heuristically and numerically in some physical models of Inertial Confinement Fusion.

  16. Fast Traveling-Wave Reactor of the Channel Type

    E-Print Network [OSTI]

    Rusov, Vitaliy D; Vashchenko, Volodymyr N; Chernezhenko, Sergei A; Kakaev, Andrei A; Pantak, Oksana I

    2015-01-01

    The main aim of this paper is to solve the technological problems of the TWR based on the technical concept described in our priority of invention reference, which makes it impossible, in particular, for the fuel claddings damaging doses of fast neutrons to excess the ~200 dpa limit. Thus the essence of the technical concept is to provide a given neutron flux at the fuel claddings by setting the appropriate speed of the fuel motion relative to the nuclear burning wave. The basic design of the fast uranium-plutonium nuclear traveling-wave reactor with a softened neutron spectrum is developed, which solves the problem of the radiation resistance of the fuel claddings material.

  17. Fast Traveling-Wave Reactor of the Channel Type

    E-Print Network [OSTI]

    Vitaliy D. Rusov; Victor A. Tarasov; Volodymyr N. Vashchenko; Sergei A. Chernezhenko; Andrei A. Kakaev; Oksana I. Pantak

    2015-04-06

    The main aim of this paper is to solve the technological problems of the TWR based on the technical concept described in our priority of invention reference, which makes it impossible, in particular, for the fuel claddings damaging doses of fast neutrons to excess the ~200 dpa limit. Thus the essence of the technical concept is to provide a given neutron flux at the fuel claddings by setting the appropriate speed of the fuel motion relative to the nuclear burning wave. The basic design of the fast uranium-plutonium nuclear traveling-wave reactor with a softened neutron spectrum is developed, which solves the problem of the radiation resistance of the fuel claddings material.

  18. Traveling-wave device with mass flux suppression

    DOE Patents [OSTI]

    Swift, Gregory W. (Santa Fe, NM); Backhaus, Scott N. (Los Alamos, NM); Gardner, David L. (White Rock, NM)

    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.

  19. THE GREATER TORONTO AREA TRAVEL DEMAND MODELLING SYSTEM

    E-Print Network [OSTI]

    Toronto, University of

    . Miller Bahen-Tanenbaum Professor Department of Civil Engineering University of Toronto Joint Program Distribution 32 4.5.3 Mode Split 32 4.6 Modelling Socio-Economic Attributes 32 #12;4 TABLE OF CONTENTS, cont with a basic understanding of what the model does, the key assumptions upon which the model is built

  20. Continuous scanning mode for ptychography

    SciTech Connect (OSTI)

    Clark, Jesse N.; Huang, Xiaojing; Harder, Ross J.; Robinson, Ian K.

    2014-10-15

    We outline how ptychographic imaging can be performed without the need for discrete scan positions. Through an idealized experiment, we demonstrate how a discrete-position scan regime can be replaced with a continuously scanned one with suitable modification of the reconstruction scheme based on coherent modes. The impact of this is that acquisition times can be reduced, significantly aiding ptychographic imaging with x rays, electrons, or visible light.

  1. Continuous scanning mode for ptychography

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

    Clark, Jesse N.; Huang, Xiaojing; Harder, Ross J.; Robinson, Ian K.

    2014-01-01

    We outline how ptychographic imaging can be performed without the need for discrete scan positions. Through an idealized experiment, we demonstrate how a discrete-position scan regime can be replaced with a continuously scanned one with suitable modification of the reconstruction scheme based on coherent modes. The impact of this is that acquisition times can be reduced, significantly aiding ptychographic imaging with x rays, electrons, or visible light.

  2. Validating time-distance helioseismology with realistic quiet-sun simulations

    SciTech Connect (OSTI)

    DeGrave, K.; Jackiewicz, J.; Rempel, M. E-mail: jasonj@nmsu.edu

    2014-06-20

    Linear time-distance helioseismic inversions are carried out for vector flow velocities using travel times measured from two ?100{sup 2} Mm{sup 2} × 20 Mm realistic magnetohydrodynamic quiet-Sun simulations of about 20 hr. The goal is to test current seismic methods on these state-of-the-art simulations. Using recent three-dimensional inversion schemes, we find that inverted horizontal flow maps correlate well with the simulations in the upper ?3 Mm of the domains for several filtering schemes, including phase-speed, ridge, and combined phase-speed and ridge measurements. In several cases, however, the velocity amplitudes from the inversions severely underestimate those of the simulations, possibly indicating nonlinearity of the forward problem. We also find that, while near-surface inversions of the vertical velocities are best using phase-speed filters, in almost all other example cases these flows are irretrievable due to noise, suggesting a need for statistical averaging to obtain better inferences.

  3. YALE UNIVERSITY UPDATED POLICY ON TRAVEL TO EBOLA-AFFECTED COUNTRIES

    E-Print Network [OSTI]

    Scholl, Brian

    outbreak in Liberia was declared over. We are continuing to monitor information about the virus recommending that US residents avoid nonessential travel to Liberia. However, CDC recommends that US residents practice enhanced precautions when traveling to Liberia. Recognizing Yale's mission to create new

  4. Health & Safety Pre-Departure Requirements and Recommendations for Graduate Students Traveling Internationally

    E-Print Network [OSTI]

    for a full evaluation of applicable risks. Sign and Submit a Graduate Student Travel Warning waiver on the Office of Risk Management Travel Policies page. Additional requirements exist for undergraduates Office, or risk facing detention by Department of Homeland Security Customs and Border Patrol (CPB

  5. Existence of a directional Stokes drift in asymmetrical three-dimensional travelling gravity

    E-Print Network [OSTI]

    Iooss, Gérard

    , France Lavrentyev Institute of Hydrodynamics, Lavryentyev pr. 15, Novosibirsk 630090, Russia gerard.iooss@unice.fr, plotnikov@hydro.nsc.ru September 4, 2009 Abstract We consider periodic travelling gravity waves], travelling waves exist with an asymptyotic expansion in powers of 1, 2, for nearly all pair of angles made

  6. Rigorous Analysis of Traveling Wave Photodetectors under High-Power Illumination

    E-Print Network [OSTI]

    Aste, Andreas

    Rigorous Analysis of Traveling Wave Photodetectors under High- Power Illumination Damir Pasalic data has shown excellent agreement. I. INTRODUCTION High-power traveling-wave photodetectors (TWPDs and velocity mismatch between the optical and RF waves over the length of the TWPD. For high power handling

  7. Using Empirical Data to Find the Best Measurement for Travel Time Reliability 

    E-Print Network [OSTI]

    Alemazkoor, Negin

    2014-08-20

    . In this research, data from Katy Freeway, where travelers choose between tolled but reliable lanes and free but less reliable lanes, was used in an attempt to find the best measurement of reliability that could lead to the best explanation of travelers’ lane choice...

  8. Understanding and Estimating the Value Travelers Place on Their Trips on Managed Lanes 

    E-Print Network [OSTI]

    Patil, Sunil N.

    2011-02-22

    by the travelers in an attempt to improve on VTTS estimation on MLs. This study used three different survey design strategies (including a D-efficient design) in an internet based survey of Katy Freeway travelers. It was found that a random attribute level...

  9. The TauPToo~kit:Flexib/e Seismic Travel-time and Ray-path Utilities

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    The TauPToo~kit:Flexib/e Seismic Travel-time and Ray-path Utilities H. Philip Crotwell, Thomas studies. These factors highlight the need for versatile utilities that allow the calculation of travel to implement this approach. We used Maple (Heal etal., 1996), a symbolic mathematics utility, to help convert

  10. ABE@IllinoisAgricultural and Biological Engineering Alumni Newsletter. Spring 2009 Rausch Travels to Brazil with

    E-Print Network [OSTI]

    Lee, Tonghun

    Rausch Travels to Brazil with ACES Academy for Global Engagement Kent Rausch, Ph.D. '93 AgE, an associate, an overarching theme in the College has been biofuels," said Rausch. "So our class chose to go to Brazil, since of Rausch Travels to Brazil ...Continued http://abe.illinois.edu Page 2 Mato Grosso. "Mato Grosso could

  11. Propagation in a kinetic reaction-transport equation: travelling waves and accelerating fronts

    E-Print Network [OSTI]

    Calvez, Vincent

    describes particles moving according to a velocity-jump process, and proliferating thanks to a reaction termPropagation in a kinetic reaction-transport equation: travelling waves and accelerating fronts the existence and stability of travelling wave solutions of a kinetic reaction- transport equation. The model

  12. Pedestrian Travel Analysis Using Static Bluetooth Sensors Yegor Malinovskiy (Corresponding Author)

    E-Print Network [OSTI]

    Washington at Seattle, University of

    1 Pedestrian Travel Analysis Using Static Bluetooth Sensors Yegor Malinovskiy (Corresponding Author and large scale behavior studies. An automated, cost-effective approach to acquiring pedestrian data presents an opportunity to use the same technology for pedestrian travel analysis. However, people

  13. Predicting travel costs for recreational visits at aquatic sites within the Caribbean National Forest using GIS

    E-Print Network [OSTI]

    1 Predicting travel costs for recreational visits at aquatic sites within the Caribbean National to visit various recreation sites. Cost surface models, developed in a GIS, can estimate the amount' predictive capabilities. The GIS models were then used to estimate the travel costs associated

  14. Peer Pressure: Exerting Malicious Influence on Routers at a Distance

    E-Print Network [OSTI]

    Hopper, Nicholas J.

    . INTRODUCTION Routers are a critical piece of the Internet infrastructure. They provide path discovery modes, ranging from severe performance degradation to the unrecoverable failure of all active routing

  15. Path planning during combustion mode switch

    DOE Patents [OSTI]

    Jiang, Li; Ravi, Nikhil

    2015-12-29

    Systems and methods are provided for transitioning between a first combustion mode and a second combustion mode in an internal combustion engine. A current operating point of the engine is identified and a target operating point for the internal combustion engine in the second combustion mode is also determined. A predefined optimized transition operating point is selected from memory. While operating in the first combustion mode, one or more engine actuator settings are adjusted to cause the operating point of the internal combustion engine to approach the selected optimized transition operating point. When the engine is operating at the selected optimized transition operating point, the combustion mode is switched from the first combustion mode to the second combustion mode. While operating in the second combustion mode, one or more engine actuator settings are adjusted to cause the operating point of the internal combustion to approach the target operating point.

  16. Interferometric detection of mode splitting for whispering gallery mode biosensors

    E-Print Network [OSTI]

    Knittel, Joachim; Lee, Kwan H; Bowen, Warwick P

    2010-01-01

    Sensors based on whispering gallery mode resonators can detect single nanoparticles and even single molecules. Particles attaching to the resonator induce a doublet in the transmission spectrum which provides a self-referenced detection signal. However, in practice this spectral feature is often obscured by the width of the resonance line which hides the doublet structure. This happens particularly in liquid environments that reduce the effective Q factor of the resonator. In this paper we demonstrate an interferometric set-up that allows the direct detection of the hidden doublet and thus provides a pathway for developing practical sensor applications.

  17. Optical waveguides having flattened high order modes

    DOE Patents [OSTI]

    Messerly, Michael Joseph; Beach, Raymond John; Heebner, John Edward; Dawson, Jay Walter; Pax, Paul Henry

    2014-08-05

    A deterministic methodology is provided for designing optical fibers that support field-flattened, ring-like higher order modes. The effective and group indices of its modes can be tuned by adjusting the widths of the guide's field-flattened layers or the average index of certain groups of layers. The approach outlined here provides a path to designing fibers that simultaneously have large mode areas and large separations between the propagation constants of its modes.

  18. Batch-mode Supervised Learning Linear regression

    E-Print Network [OSTI]

    Wehenkel, Louis

    Batch-mode Supervised Learning Linear regression Applied inductive learning - Lecture 3 Louis (& Pierre Geurts)AIA... (1/19) #12;Batch-mode Supervised Learning Linear regression Batch-mode Supervised Learning Linear regression Least mean square error solution Regularization and algorithmics Residual

  19. Hydrodynamic Lyapunov Modes in Translation Invariant Systems

    E-Print Network [OSTI]

    Hydrodynamic Lyapunov Modes in Translation Invariant Systems Jean­Pierre Eckmann and Omri Gat De modes in the slowly growing part of the Lyapunov spectrum, which are analogous to the hydrodynamic modes)]. The hydrodynamic Lyapunov vectors loose the typical random structure and exhibit instead the structure of weakly

  20. Hydrodynamic Lyapunov Modes in Translation Invariant Systems

    E-Print Network [OSTI]

    Eckmann, Jean-Pierre

    Hydrodynamic Lyapunov Modes in Translation Invariant Systems Jean­Pierre Eckmann and Omri Gat De modes in the slowly growing part of the Lyapunov spectrum, which are analogous to the hydrodynamic modes)]. The hydrodynamic Lyapunov vectors loose the typical random structure and exhibit instead the structure of weakly

  1. Local and global statistical distances are equivalent on pure states

    E-Print Network [OSTI]

    Scott M. Cohen

    2009-06-10

    The statistical distance between pure quantum states is obtained by finding a measurement that is optimal in a sense defined by Wootters. As such, one may expect that the statistical distance will turn out to be different if the set of possible measurements is restricted in some way. It nonetheless turns out that if the restriction is to local operations and classical communication (LOCC) on any multipartite system, then the statistical distance is the same as it is without restriction, being equal to the angle between the states in Hilbert space.

  2. Analysis of trip item non-response bias in the Houston-Galveston area council household travel surveys 

    E-Print Network [OSTI]

    Gamble, Arthur F

    1997-01-01

    Information obtained through the collection and analysis of origin-destination travel surveys is used to develop trip rate information for input to travel demand models. Three major sources of systematic error can exist relative to typical sample...

  3. New Modes of Nuclear Excitations

    E-Print Network [OSTI]

    Nadia Tsoneva; Horst Lenske

    2013-10-01

    We present a theoretical approach based on density functional theory supplemented by a microscopic multi-phonon model which is applied for investigations of pygmy resonances and other excitations of different multipolarities in stable and exotic nuclei. The possible relation of low-energy modes to the properties of neutron or proton skins is systematically studied in isotonic and isotopic chains. The fine structure of nuclear electric and magnetic response functions is analyzed and compared to experimental data. Their relevance to nuclear astrophysics is discussed.

  4. Mode Meter - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on77 PAGEMission Mission Missionof EnergyJennings= a nMode

  5. 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.

  6. IcelandTravelandStudyAward The Iceland Travel and Study Award was created to reward academic achievement and to encourage and support student research about and/or research-related travel

    E-Print Network [OSTI]

    Peak, Derek

    IcelandTravelandStudyAward The Iceland Travel and Study Award was created to reward academic achievement and to encourage and support student research about and/or research-related travel to Iceland. There will be one award valued at $2,000 for 2014-2015. The Iceland Travel and Study Award is open to undergraduate

  7. CONTRACT TRAVEL VENDOR EXCEPTION FORM Lodging Airfare Car Rental 1. Lower Cost to the State -State agencies may use any travel services obtained at a price lower than the

    E-Print Network [OSTI]

    Behmer, Spencer T.

    agencies may use any travel services obtained at a price lower than the contract travel services price. State agencies are encouraged to obtain lower priced travel services through the use of fourteen day or other advanced reservations programs, promotional price reductions, or any method that provides a lower

  8. Quantum Correlations of Helicity Entangled States in Non-inertial Frames Beyond Single Mode Approximation

    E-Print Network [OSTI]

    Zeynab Harsij; Behrouz Mirza

    2014-09-24

    A helicity entangled tripartite state is considered in which the degree of entanglement is preserved in non-inertial frames. It is shown that Quantum Entanglement remains observer independent. As another measure of quantum correlation, Quantum Discord has been investigated. It is explicitly shown that acceleration has no effect on the degree of quantum correlation for the bipartite and tripartite helicity entangled states. Geometric Quantum Discord as a Hilbert-Schmidt distance is computed for helicity entangled states. It is shown that living in non-inertial frames does not make any influence on this distance, either. In addition, the analysis has been extended beyond single mode approximation to show that acceleration does not have any impact on the quantum features in the limit beyond the single mode. As an interesting result, while the density matrix depends on the right and left Unruh modes, the Negativity as a measure of Quantum Entanglement remains constant. Also, Quantum Discord does not change beyond single mode approximation.

  9. Quantum Accelerator Modes from the Farey Tree

    E-Print Network [OSTI]

    A. Buchleitner; M. B. d'Arcy; S. Fishman; S. A. Gardiner; I. Guarneri; Z. -Y. Ma; L. Rebuzzini; G. S. Summy

    2006-06-09

    We show that mode-locking finds a purely quantum non-dissipative counterpart in atom-optical quantum accelerator modes. These modes are formed by exposing cold atoms to periodic kicks in the direction of the gravitational field. They are anchored to generalized Arnol'd tongues, parameter regions where driven nonlinear classical systems exhibit mode-locking. A hierarchy for the rational numbers known as the Farey Tree provides an ordering of the Arnol'd tongues and hence of experimentally observed accelerator modes.

  10. Batch-mode vs Online-mode Supervised Learning Motivations for Artificial Neural Networks

    E-Print Network [OSTI]

    Wehenkel, Louis

    Batch-mode vs Online-mode Supervised Learning Motivations for Artificial Neural Networks Linear ANN-mode vs Online-mode Supervised Learning Motivations for Artificial Neural Networks Linear ANN Models for Artificial Neural Networks Linear ANN Models Single neuron models Single layer models Nonlinear ANN Models

  11. Minimum Distance between Bent and 1-resilient Boolean Functions

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    , INDIA. soumen@iitg.ernet.in 2 Applied Statistics Unit, Indian Statistical Institute, 203, B T Road, Kolkata 700 108, INDIA subho@isical.ac.in Abstract. In this paper we study the minimum distance between

  12. Distance determination to eight galaxies using expanding photosphere method

    SciTech Connect (OSTI)

    Bose, Subhash; Kumar, Brijesh, E-mail: email@subhashbose.com, E-mail: bose@aries.res.in [Aryabhatta Research Institute of Observational Sciences, Manora Peak, Nainital 263002 (India)

    2014-02-20

    Type IIP supernovae (SNe) are recognized as independent extragalactic distance indicators; however, keeping in mind the diverse nature of their observed properties as well as the availability of good quality data, more and newer events need to be tested for their applicability as reliable distance indicators. We use early photometric and spectroscopic data of eight Type IIP SNe to derive distances to their host galaxies by using the expanding photosphere method (EPM). For five of these, the EPM is applied for the first time. In this work, we improved EPM application by using SYNOW estimated velocities and by semi-deconvolving the broadband filter responses while deriving color temperatures and blackbody angular radii. We find that the derived EPM distances are consistent with that derived using other redshift-independent methods.

  13. The solar neighborhood. XXXV. Distances to 1404 M dwarf systems...

    Office of Scientific and Technical Information (OSTI)

    solar neighborhood. XXXV. Distances to 1404 M dwarf systems within 25 PC in the southern sky Winters, Jennifer G.; Jao, Wei-Chun; Dieterich, Sergio B., E-mail:...

  14. Distance sampling and the challenge of monitoring butterfly populations

    E-Print Network [OSTI]

    Shuker, David

    Distance sampling and the challenge of monitoring butterfly populations Nick J. B. Isaac110 5DD, UK; 5 Institute for Environment, Sustainability and Regeneration, Mellor Building Monitoring Scheme (UKBMS) have been influential in informing our understanding of environmental change

  15. TOWARD THE MINIMUM INNER EDGE DISTANCE OF THE HABITABLE ZONE

    E-Print Network [OSTI]

    Zsom, Andras

    We explore the minimum distance from a host star where an exoplanet could potentially be habitable in order not to discard close-in rocky exoplanets for follow-up observations. We find that the inner edge of the Habitable ...

  16. Distance Learning and the WorldWide Web

    E-Print Network [OSTI]

    Meyer, Albert R.

    /Singapore Distance Learning Project Develop and teach three courses at National University of Singapore and Nanyang. Applied research and development: Support for continuing improvement in education. Daedalus, Fall 1998, p

  17. A GPS Pseudorange Based Cooperative Vehicular Distance Measurement Technique

    E-Print Network [OSTI]

    Yang, Daiqin

    Accurate vehicular localization is important for various cooperative vehicle safety (CVS) applications such as collision avoidance, turning assistant, etc. In this paper, we propose a cooperative vehicular distance measurement ...

  18. Authoring and Presentation Tools for Distance Learning over Interactive TV

    E-Print Network [OSTI]

    Erdem, Cigdem Eroglu

    questions into interactive exams, and a virtual teacher whose facial animation is automatically generated]: Multimedia Information Systems ­ animations, evaluation/methodology, video. General Terms Management, Design, Human Factors. Keywords Distance education, interactive TV, set-top-box, multimedia presentation. 1

  19. Upper bounds on minimum distance of nonbinary quantum stabilizer codes 

    E-Print Network [OSTI]

    Kumar, Santosh

    2005-11-01

    The most popular class of quantum error correcting codes is stabilizer codes. Binary quantum stabilizer codes have been well studied, and Calderbank, Rains, Shor and Sloane (July 1998) have constructed a table of upper bounds on the minimum distance...

  20. Cepheid Variables in M33 and the Extragalactic Distance Scale 

    E-Print Network [OSTI]

    Bradshaw, Andrew K.

    2010-01-16

    , they can be used to determine distances to nearby galaxies and calibrate secondary distance indicators, such as type Ia supernovae. A detailed study of Cepheids in nearby galaxies is required in order to properly characterize their properties and variations... be related to other more fundamental quantities. The name ?variable star? can refer to a wide variety of objects, including supernovae, eclipsing binary stars, or even transiting planets. However, this thesis will be focused on a speci c type of variable star...

  1. SBF Distances to Leo and Virgo using the HST

    E-Print Network [OSTI]

    P. W. Morris; T. Shanks

    1998-02-05

    We have used archive HST WFPC2 data for three elliptical galaxies (NGC 3379 in the Leo I group, and NGC 4472 and NGC 4406 in the Virgo cluster) to determine their distances using the Surface Brightness Fluctuation (SBF) method as described by Tonry and Schneider (1988). A comparison of the HST results with the SBF distance moduli of Ciardullo et al (1993) shows significant disagreement and suggests that the r.m.s. error on these ground-based distance moduli is actually as large as +-0.25 mag. The agreement is only slightly improved when we compare our results with the HST and ground-based SBF distances from Ajhar et al (1997) and Tonry et al (1997); the comparison suggests that a lower limit on the error of the HST SBF distance moduli is +-0.17 mag. Overall, these results suggest that previously quoted measurement errors may underestimate the true error in SBF distance moduli by at least a factor of 2-3.

  2. The Road We've Traveled: 12 Years of Undergraduate Software Engineering at the Rochester Institute of Technology

    E-Print Network [OSTI]

    Vallino, James R

    The Road We've Traveled: 12 Years of Undergraduate Software Engineering at the Rochester Institute lecturer, and several adjuncts. The program's development was first described in "The Road Less Traveled the road we've traveled, changes made, and how the program changed along the way, and consider the path

  3. 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.

  4. 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.

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

    DOE Patents [OSTI]

    Möbius, Arnold (Eggenstein, DE); Ives, Robert Lawrence (Saratoga, CA)

    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.

  6. Mirror Modes in the Heliosheath

    SciTech Connect (OSTI)

    Tsurutani, B. T. [Jet Propulsion Lab., Calif. Inst. Tech., Pasadena, CA (United States); Guarnieri, F. L. [UNIVAP, Sao Jose dos Campos, SP (Brazil); Echer, E. E. [INPE, Sao Jose dos Campos, SP (Brazil); Lakhina, G. S. [Indian Institute of Geomagnetism, Navi Mumbai (India); Verkhoglyadova, O. P. [CSPAR, Univ. Alabama, Huntsville, AL (United States)

    2011-01-04

    Mirror mode (MM) structures are identified in the Voyager 1 heliosheath magnetic field data. Their characteristics are: (1) quasiperiodic structures with a typical scale size of {approx}57 {rho}{sub p}(proton gyroradii), (2) little or no angular changes across the structures ({approx}3 deg. longitude and {approx}3 deg. latitude), and (3) a lack of sharp boundaries at the magnetic dip edges. It is proposed that the pickup of interstellar neutrals in the upstream region of the termination shock (TS) is the likely cause of MM instability during intervals when the IMF is nearly orthogonal to the solar wind flow direction. Concomitant (quasiperpendicular) shock compression of the MM structures at the TS and additional injection of pickup ions (PUIs) throughout the heliosheath will enhance MM growth.

  7. Program steering : improving adaptability and mode selection via dynamic analysis

    E-Print Network [OSTI]

    Lin, Lee Chuan

    2004-01-01

    A multi-mode software system contains several distinct modes of operation and a controller for deciding when to switch between modes. Even when developers rigorously test a multi-mode system before deployment, they cannot ...

  8. Mode propagation and attenuation in lined ducts

    E-Print Network [OSTI]

    BI, Wenping

    2014-01-01

    Optimal impedance for each mode is an important concept in an infinitely long duct lined with uniform absorption material. However it is not valid for finite length linings. This is because that the modes in lined ducts are not power-orthogonal; the total sound power is not equal to the sum of the sound power of each mode; cross-power terms may play important roles. In this paper, we study sound propagation and attenuation in an infinite rigid duct lined with a finite length of lining impedance. The lining impedance may be axial segments and circumferentially non-uniform. We propose two new physical quantities Kp and S to describe the self-overlap of the left eigenfunction and right eigenfunction of one mode and the normalized overlap between modes, respectively. The two new physical quantities describe totally the mode behaviors in lined ducts.

  9. Mode coupling in solar spicule oscillations

    E-Print Network [OSTI]

    Fazel, Zahra

    2015-01-01

    In a real medium which has oscillations, the perturbations can cause the energy transfer between different modes. The perturbation interpreted as an interaction between the modes is inferred as mode coupling. Mode coupling process in an inhomogeneous medium such as solar spicules may lead to the coupling of kink waves to local Alfven waves. This coupling occurs practically in any conditions when there is smooth variation in density in the radial direction. This process is seen as the decay of transverse kink waves in the medium. To study the damping of kink waves due to mode coupling, a 2.5-dimensional numerical simulation of the initial wave is considered in spicules. The initial perturbation is assumed to be in a plane perpendicular to the spicule axis. The considered kink wave is a standing wave which shows an exponential damping in the inhomogeneous layer after occurrence of the mode coupling.

  10. Mode-Wise Entanglement of Gaussian States

    E-Print Network [OSTI]

    Alonso Botero; Benni Reznik

    2003-01-16

    We address the decomposition of a multi-mode pure Gaussian state with respect to a bi-partite division of the modes. For any such division the state can always be expressed as a product state involving entangled two-mode squeezed states and single mode local states at each side. The character of entanglement of the state can therefore be understood modewise; that is, a given mode on one side is entangled with only one corresponding mode of the other, and therefore the total bi-partite entanglement is the sum of the modewise entanglement. This decomposition is generally not applicable to all mixed Gaussian states. However, the result can be extended to a special family of "isotropic" states, characterized by a phase space covariance matrix with a completely degenerate symplectic spectrum.

  11. Distances to Galactic high-velocity clouds. Complex C

    E-Print Network [OSTI]

    B. P. Wakker; D. G. York; J. C. Howk; J. C. Barentine; R. Wilhelm; R. F. Peletier; H. van Woerden; T. C. Beers; Z. Ivezic; P. Richter; U. J. Schwarz

    2007-10-17

    We report the first determination of a distance bracket for the high-velocity cloud (HVC) complex C. Combined with previous measurements showing that this cloud has a metallicity of 0.15 times solar, these results provide ample evidence that complex C traces the continuing accretion of intergalactic gas falling onto the Milky Way. Accounting for both neutral and ionized hydrogen as well as He, the distance bracket implies a mass of 3-14x10^6 M_sun, and the complex represents a mass inflow of 0.1-0.25 M_sun/yr. We base our distance bracket on the detection of CaII absorption in the spectrum of the blue horizontal branch star SDSS J120404.78+623345.6, in combination with a significant non-detection toward the BHB star BS 16034-0114. These results set a strong distance bracket of 3.7-11.2 kpc on the distance to complex C. A more weakly supported lower limit of 6.7 kpc may be derived from the spectrum of the BHB star BS 16079-0017.

  12. Time-delay Cosmography: Increased Leverage with Angular Diameter Distances

    E-Print Network [OSTI]

    Jee, Inh; Suyu, Sherry H; Huterer, Dragan

    2015-01-01

    Strong lensing time-delay systems constrain cosmological parameters via the so-called time-delay distance and the angular diameter distance to the lens. In previous studies, only the former information was used. In this paper, we show that the cosmological constraints improve significantly when the latter information is also included. Specifically, the angular diameter distance plays a crucial role in breaking the degeneracy between the curvature of the Universe and the time-varying equation of state of dark energy. Using a mock sample of 55 bright quadruple lens systems based on expectations for ongoing/future imaging surveys, we find that adding the angular diameter distance information to the time-delay distance information and the cosmic microwave background data of Planck improves the constraint on the constant equation of state by 30%, on the time variation in the equation of state by a factor of two, and on the Hubble constant in the flat $\\Lambda$CDM model by a factor of two. Therefore, previous forec...

  13. An investigation of the information needs of air passengers traveling to the airport 

    E-Print Network [OSTI]

    Burdette, Debra Arlene

    2000-01-01

    and thus would have adequate time to evaluate their options. Finally, based on the survey results, air passengers indicated they would prefer to use e-mail, pagers, telephones, and the Internet when making future travel information inquiries...

  14. SPECIAL REPORT 298: EFFECTS OF LAND DEVELOPMENT PATTERNS ON MOTORIZED TRAVEL, ENERGY, AND CO2 EMISSIONS

    E-Print Network [OSTI]

    Kockelman, Kara M.

    SPECIAL REPORT 298: EFFECTS OF LAND DEVELOPMENT PATTERNS ON MOTORIZED TRAVEL, ENERGY, AND CO2 land use changes, biofuels (especially advanced biofuels such as cellulosic ethanol) are a good

  15. Turbulent drag reduction by streamwise traveling waves Armin Zare, Binh K. Lieu, and Mihailo R. Jovanovic

    E-Print Network [OSTI]

    Jovanovic, Mihailo

    of Minnesota Initiative for Renewable Energy and the Environment under Early Career Award RC- 0014 simulations have provided motivation for the development of a model-based framework for designing traveling

  16. 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.

  17. Logistic regression models for predicting trip reporting accuracy in GPS-enhanced household travel surveys 

    E-Print Network [OSTI]

    Forrest, Timothy Lee

    2007-04-25

    This thesis presents a methodology for conducting logistic regression modeling of trip and household information obtained from household travel surveys and vehicle trip information obtained from global positioning systems (GPS) to better understand...

  18. Local travel habits of baby boomers in suburban age-restricted communities

    E-Print Network [OSTI]

    Hebbert, Francis

    2008-01-01

    The baby boomer generation is an unprecedented demographic of 78 million Americans, now entering retirement. Living mostly in suburbs and dependent on private vehicles for nearly all travel needs, boomers face increasing ...

  19. Lower and Upper Bounds for a Symmetric Multiple Depot, Multiple Travelling Salesman Problem

    E-Print Network [OSTI]

    Rathinam, Sivakumar; Sengupta, Raja

    2006-01-01

    starting locations, a set of ?nal UAV locations, a set ofnd a path for each UAV such that each destination isvisited once by any one UAV and the total cost travelled by

  20. Safety and Thermal Comfort Concerns for Active Travel to School: As Mediators and Correlates 

    E-Print Network [OSTI]

    Kim, Young Jae

    2014-12-03

    Children’s active travel to school (ATS), considered a regular source of physical activity, is influenced heavily by their parents’ perceived barriers to ATS such as safety and thermal comfort concerns. This dissertation focuses on environmental...

  1. 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...

  2. Implementation of advanced transit traveler information systems in the United States and Canada : practice and prospects

    E-Print Network [OSTI]

    Rizos, Anthony Charles

    2010-01-01

    Over the past few years, public transit agencies across the United States and Canada have increasingly implemented methods for passengers to access traveler information using new media and personal mobile communications ...

  3. Incident detection using the Standard Normal Deviate model and travel time information from probe vehicles 

    E-Print Network [OSTI]

    Mountain, Christopher Eugene

    1993-01-01

    One application of travel time information explored in this thesis is freeway incident detection. It is vital to develop reliable methods for automatically detecting incidents to facilitate the quick response and removal of incidents before...

  4. A penalization method for calculating the flow beneath travelling water waves of large amplitude

    E-Print Network [OSTI]

    Adrian Constantin; Konstantinos Kalimeris; Otmar Scherzer

    2014-08-08

    A penalization method for a suitable reformulation of the governing equations as a constrained optimization problem provides accurate numerical simulations for large-amplitude travelling water waves in irrotational flows and in flows with constant vorticity.

  5. Grouping travelers on the basis of their different car and transit levels of use

    E-Print Network [OSTI]

    Diana, Marco; Mokhtarian, Patricia L.

    2009-01-01

    Elgar, A. , Bekhor, S. : Car-rider segmentation according tostatus and investment in car mobility. Transp. Res. Rec.people talk about bus and car travel. Transp. Res. A Jensen,

  6. Grouping Travelers on the Basis of their Different Car and Transit Levels of Use

    E-Print Network [OSTI]

    Diana, Marco; Mokhtarian, Patricia L

    2009-01-01

    Elgar, A. , Bekhor, S. : Car-rider segmentation according tostatus and investment in car mobility. Transp. Res. Rec.people talk about bus and car travel. Transp. Res. A Jensen,

  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. A Maximum Likelihood Method with Penalty to Estimate Link Travel Time Based on Trip Itinerary Data 

    E-Print Network [OSTI]

    Zhong, Chujun

    2014-12-15

    Travel time is an important network performance measure. It is a challenging subject due to the fluctuations in traffic characteristics, such as traffic flow. This study proposes a maximum likelihood method with penalty ...

  9. 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...

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

    Broader source: Energy.gov [DOE]

    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. Georgia Institute of Technology School of Chemistry and Biochemistry Johnson Graduate Student Travel Funds

    E-Print Network [OSTI]

    Sherrill, David

    Georgia Institute of Technology School of Chemistry and Biochemistry Johnson Graduate Student Travel funds may be used to meet any remaining costs not covered by the research advisor, GSF award___________________________________________________ Dates of Conference_____________________________________________________ Total estimated costs

  12. Sensing mode atomic force microscope

    DOE Patents [OSTI]

    Hough, Paul V. C. (Port Jefferson, NY); Wang, Chengpu (Upton, NY)

    2003-01-01

    An atomic force microscope utilizes a pulse release system and improved method of operation to minimize contact forces between a probe tip affixed to a flexible cantilever and a specimen being measured. The pulse release system includes a magnetic particle affixed proximate the probe tip and an electromagnetic coil. When energized, the electromagnetic coil generates a magnetic field which applies a driving force on the magnetic particle sufficient to overcome adhesive forces exhibited between the probe tip and specimen. The atomic force microscope includes two independently displaceable piezo elements operable along a Z-axis. A controller drives the first Z-axis piezo element to provide a controlled approach between the probe tip and specimen up to a point of contact between the probe tip and specimen. The controller then drives the first Z-axis piezo element to withdraw the cantilever from the specimen. The controller also activates the pulse release system which drives the probe tip away from the specimen during withdrawal. Following withdrawal, the controller adjusts the height of the second Z-axis piezo element to maintain a substantially constant approach distance between successive samples.

  13. Evidence against correlations between nuclear decay rates and Earth-Sun distance

    E-Print Network [OSTI]

    Norman, Eric B.

    2009-01-01

    distance of the source to the Sun. This work was supportedNuclear Decay Rates and Earth-Sun Distance Eric B. Normanand 241 Am and the Earth-Sun distance. We find no evidence

  14. How Pseudo-Boolean Programming can help Genome Rearrangement Distance Computation

    E-Print Network [OSTI]

    Fertin, Guillaume

    How Pseudo-Boolean Programming can help Genome Rearrangement Distance Computation S vialette@lri.fr Abstract. Computing genomic distances between whole genomes is a fundamental problem in comparative genomics. Recent researches have resulted in different genomic distance definitions: number

  15. A review of "Visions of Persia: Mapping the Travels of Adam Olearius." by Elio Christoph Brancaforte 

    E-Print Network [OSTI]

    Jonathan Burton

    2005-01-01

    is recommended for collec- tions on the seventeenth century and biographies on Indians in academic libraries and personal libraries. Elio Christoph Brancaforte. Visions of Persia: Mapping the Travels of Adam Olearius. Cambridge, Mass: Harvard University Press..., 2003. xxiv + 238 pp. + 66 illustrations. $45.00 Cloth, $27.50 Paper. Review by JONATHAN BURTON, WEST VIRGINIA UNIVERSITY. In the introduction to his study of the works of the German traveler and cartographer Adam Olearius, Elio Brancaforte promises...

  16. 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.

  17. Quantification of latent travel demand on new urban facilities in the state of Texas 

    E-Print Network [OSTI]

    Henk, Russell H

    1989-01-01

    , becomes obvious that there is a need for a more accurate procedure in the identification of this commonly occurring phenomenon known as latent travel demand. The SDHPT is responsible for evaluating and prioritizing alternative highway projects...QUANTIFICATION OF LATENT TRAVEL DEMAND ON NEW URBAN FACILITIES IN THE STATE OF TEXAS A Thesis by RUSSELL HAROLD HENK Submitted to the Office of Graduate Studies of Texas ASM University in partial fulfillment of the requirements...

  18. The Hubble Constant from the Fornax Cluster Distance

    E-Print Network [OSTI]

    Tom Richtler; Georg Drenkhahn; Matias Gomez; Wilhelm Seggewiss

    1999-05-17

    Type Ia supernovae are the best cosmological standard candles available. The intrinsic scatter of their decline-rate- and colour-corrected peak brightnesses in the Hubble diagram is within observational error limits, corresponding to an uncertainty of only 3km/s/Mpc of the Hubble constant. Any additional uncertainty, resulting from peak-brightness calibration, must be kept small by measuring distances to nearby host galaxies most precisely. A number of different distance determinations of the Fornax cluster of galaxies agree well on a distance modulus of 31.35+-0.04mag (18.6+-0.3Mpc). This leads to accurate absolute magnitudes of the well-observed Fornax type Ia SNe SN1980N, SN1981D, and SN1992A and finally to a Hubble constant of H_0=72+-6km/s/Mpc.

  19. Exploring the Graph of Graphs: Network Evolution and Centrality Distances

    E-Print Network [OSTI]

    Pignolet, Yvonne Anne; Schmid, Stefan; Tredan, Gilles

    2015-01-01

    The topological structure of complex networks has fascinated researchers for several decades, and today we have a fairly good understanding of the types and reoccurring characteristics of many different complex networks. However, surprisingly little is known today about models to compare complex graphs, and quantitatively measure their similarity and dynamics. In the past a variety of node centralities, i.e., functions which assign values to nodes to represent their importance in the graph. Based on such centralities we propose a natural similarity measure for complex networks: the centrality distance $d_C$, the difference between two graphs with respect to a given node centrality $C$. Centrality distances can take the specific roles of the different nodes in the network into account, and have many interesting applications. As a case study, we investigate the evolution of networks with respect to centrality distances and their approximations based on closeness, betweenness, pagerank, clustering and degree cen...

  20. Distance determinations to shield galaxies from Hubble space telescope imaging

    SciTech Connect (OSTI)

    McQuinn, Kristen B. W.; Skillman, Evan D. [Minnesota Institute for Astrophysics, School of Physics and Astronomy, University of Minnesota, 116 Church Street, S.E., Minneapolis, MN 55455 (United States); Cannon, John M.; Cave, Ian [Department of Physics and Astronomy, Macalester College, 1600 Grand Avenue, Saint Paul, MN 55105 (United States); Dolphin, Andrew E. [Raytheon Company, 1151 E. Hermans Road, Tucson, AZ 85756 (United States); Salzer, John J. [Department of Astronomy, Indiana University, 727 East 3rd Street, Bloomington, IN 47405 (United States); Haynes, Martha P.; Adams, Elizabeth; Giovanelli, Riccardo [Center for Radiophysics and Space Research, Space Sciences Building, Cornell University, Ithaca, NY 14853 (United States); Elson, Ed C. [Astrophysics, Cosmology and Gravity Centre (ACGC), Department of Astronomy, University of Cape Town, Private Bag X3, Rondebosch 7701 (South Africa); Ott, Juërgen [National Radio Astronomy Observatory, P.O. Box O, 1003 Lopezville Road, Socorro, NM 87801 (United States); Saintonge, Amélie, E-mail: kmcquinn@astro.umn.edu [Max-Planck-Institute for Astrophysics, D-85741 Garching (Germany)

    2014-04-10

    The Survey of H I in Extremely Low-mass Dwarf (SHIELD) galaxies is an ongoing multi-wavelength program to characterize the gas, star formation, and evolution in gas-rich, very low-mass galaxies. The galaxies were selected from the first ?10% of the H I Arecibo Legacy Fast ALFA (ALFALFA) survey based on their inferred low H I mass and low baryonic mass, and all systems have recent star formation. Thus, the SHIELD sample probes the faint end of the galaxy luminosity function for star-forming galaxies. Here, we measure the distances to the 12 SHIELD galaxies to be between 5 and 12 Mpc by applying the tip of the red giant method to the resolved stellar populations imaged by the Hubble Space Telescope. Based on these distances, the H I masses in the sample range from 4 × 10{sup 6} to 6 × 10{sup 7} M {sub ?}, with a median H I mass of 1 × 10{sup 7} M {sub ?}. The tip of the red giant branch distances are up to 73% farther than flow-model estimates in the ALFALFA catalog. Because of the relatively large uncertainties of flow-model distances, we are biased toward selecting galaxies from the ALFALFA catalog where the flow model underestimates the true distances. The measured distances allow for an assessment of the native environments around the sample members. Five of the galaxies are part of the NGC 672 and NGC 784 groups, which together constitute a single structure. One galaxy is part of a larger linear ensemble of nine systems that stretches 1.6 Mpc from end to end. Three galaxies reside in regions with 1-9 neighbors, and four galaxies are truly isolated with no known system identified within a radius of 1 Mpc.

  1. Using X-mode L, R and O-mode reflectometry cutoffs to measure...

    Office of Scientific and Technical Information (OSTI)

    Using X-mode L, R and O-mode reflectometry cutoffs to measure scrape-off-layer density profiles for upgraded ORNL reflectometer on NSTX-U Citation Details In-Document Search Title:...

  2. D. NOLTE, MIND AT LIGHT SPEED (FREE PRESS, 2001) 1 Light is the quintessential messenger. It travels faster than anything else can travel. It

    E-Print Network [OSTI]

    Nolte, David D.

    PREFACE D. NOLTE, MIND AT LIGHT SPEED (FREE PRESS, 2001) 1 PREFACE Light is the quintessential to make. A million rays of light carrying a thousand colors can travel along with each other or through. This is the parallelism of light, and it represents massive communication and computational power. With it, machines

  3. Packing list for international travel: Please note that this is a general list, specific materials might be needed according to the site.

    E-Print Network [OSTI]

    Emshwiller, Eve

    ____Extra glasses/prescription (extra contacts) ____Sunglasses ____Sunscreen/lip balm ____Towel (travel

  4. New proofs for old modes Mark Wooding

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    the standard block cipher modes of operation: CBC, CFB, and OFB and analyse their security. We don't look in (full­width) CFB and OFB modes and that generalized counters encrypted using the block cipher (with Ciphertext feedback (CFB) en­ cryption 19 4.1 Description . . . . . . . . . 19 4.2 Sliding strings

  5. New proofs for old modes Mark Wooding

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    the standard block cipher modes of operation: CBC, CFB, and OFB and analyse their security. We don't look in (full-width) CFB and OFB modes and that generalized counters encrypted using the block cipher (with Ciphertext feedback (CFB) en- cryption 19 4.1 Description . . . . . . . . . 19 4.2 Sliding strings

  6. Normalizable fermion modes in a holographic superconductor

    E-Print Network [OSTI]

    Steven S. Gubser; Fabio D. Rocha; Pedro Talavera

    2009-11-18

    We consider fermions in a zero-temperature superconducting anti-de Sitter domain wall solution and find continuous bands of normal modes. These bands can be either partially filled or totally empty and gapped. We present a semi-classical argument which approximately captures the main features of the normal mode spectrum.

  7. Spatial mode properties of plasmon assisted transmission

    E-Print Network [OSTI]

    Xi-Feng Ren; Guo-Ping Guo; Yun-Feng Huang; Zhi-Wei Wang; Guang-Can Guo

    2006-09-11

    Orbital angular momentum of photons is explored to study the spatial mode properties of plasmon assisted transmission process. We found that photons carrying different orbital angular momentums have different transmission efficiencies, while the coherence between these spatial modes can be preserved.

  8. CRITERION DELINEATING THE MODE OF HEADCUT MIGRATION

    E-Print Network [OSTI]

    Julien, Pierre Y.

    CRITERION DELINEATING THE MODE OF HEADCUT MIGRATION By O. R. Stein,l Associate Member, ASCE, and P- tating headcutsthat tend to flatten as they migrate; and (2) stepped headcutsthat tend to retain nearly detachmentpotentialimmediatelyupstreamanddownstreamofthe headcutisused to delineate these modes of migration. The delineatingparameter is the ratio

  9. Mode suppression means for gyrotron cavities

    DOE Patents [OSTI]

    Chodorow, Marvin (Stanford, CA); Symons, Robert S. (Los Altos, CA)

    1983-08-09

    In a gyrotron electron tube of the gyro-klystron or gyro-monotron type, having a cavity supporting an electromagnetic mode with circular electric field, spurious resonances can occur in modes having noncircular electric field. These spurious resonances are damped and their frequencies shifted by a circular groove in the cavity parallel to the electric field.

  10. Development of the table of initial isolation distances and protective action distances for the 2004 emergency response guidebook.

    SciTech Connect (OSTI)

    Brown, D. F.; Freeman, W. A.; Carhart, R. A.; Krumpolc, M.; Decision and Information Sciences; Univ. of Illinois at Chicago

    2005-09-23

    This report provides technical documentation for values in the Table of Initial Isolation and Protective Action Distances (PADs) in the 2004 Emergency Response Guidebook (ERG2004). The objective for choosing the PADs specified in the ERG2004 is to balance the need to adequately protect the public from exposure to potentially harmful substances against the risks and expenses that could result from overreacting to a spill. To quantify this balance, a statistical approach is adopted, whereby the best available information is used to conduct an accident scenario analysis and develop a set of up to 1,000,000 hypothetical incidents. The set accounts for differences in containers types, incident types, accident severity (i.e., amounts released), locations, times of day, times of year, and meteorological conditions. Each scenario is analyzed using detailed emission rate and atmospheric dispersion models to calculate the downwind chemical concentrations from which a 'safe distance' is determined. The safe distance is defined as the distance downwind from the source at which the chemical concentration falls below health protection criteria. The American Industrial Hygiene Association's Emergency Response Planning Guideline Level 2 (ERPG-2) or equivalent is the health criteria used. The statistical sample of safe distance values for all incidents considered in the analysis are separated into four categories: small spill/daytime release, small spill/nighttime release, large spill/daytime release, and large spill/nighttime release. The 90th-percentile safe distance values for each of these groups became the PADs that appear in the ERG2004.

  11. Multiple Oscillatory Modes of the Argentine Basin. Part II: The Spectral Origin of Basin Modes

    E-Print Network [OSTI]

    Weijer, Wilbert

    Multiple Oscillatory Modes of the Argentine Basin. Part II: The Spectral Origin of Basin Modes et Approches Numériques, Paris, France SARAH T. GILLE Scripps Institution of Oceanography, La Jolla In this paper the spectrum of barotropic basin modes of the Argentine Basin is shown to be connected

  12. Parafermionic zero modes in ultracold bosonic systems

    E-Print Network [OSTI]

    Mohammad F. Maghrebi; Sriram Ganeshan; David J. Clarke; Alexey V. Gorshkov; Jay D. Sau

    2015-04-20

    Exotic topologically protected zero modes with parafermionic statistics (also called fractionalized Majorana modes) have been proposed to emerge in devices fabricated from a fractional quantum Hall system and a superconductor. The fractionalized statistics of these modes takes them an important step beyond the simplest non-Abelian anyons, Majorana fermions. Building on recent advances towards the realization of fractional quantum Hall states of bosonic ultracold atoms, we propose a realization of parafermions in a system consisting of Bose-Einstein-condensate trenches within a bosonic fractional quantum Hall state. We show that parafermionic zero modes emerge at the endpoints of the trenches and give rise to a topologically protected degeneracy. We also discuss methods for preparing and detecting these modes.

  13. Sliding mode control of quantum systems

    E-Print Network [OSTI]

    Daoyi Dong; Ian R. Petersen

    2009-10-31

    This paper proposes a new robust control method for quantum systems with uncertainties involving sliding mode control (SMC). Sliding mode control is a widely used approach in classical control theory and industrial applications. We show that SMC is also a useful method for robust control of quantum systems. In this paper, we define two specific classes of sliding modes (i.e., eigenstates and state subspaces) and propose two novel methods combining unitary control and periodic projective measurements for the design of quantum sliding mode control systems. Two examples including a two-level system and a three-level system are presented to demonstrate the proposed SMC method. One of main features of the proposed method is that the designed control laws can guarantee desired control performance in the presence of uncertainties in the system Hamiltonian. This sliding mode control approach provides a useful control theoretic tool for robust quantum information processing with uncertainties.

  14. Topological modes driven by Lyapunov control

    E-Print Network [OSTI]

    Z. C. Shi; X. L. Zhao; X. X. Yi

    2014-11-20

    By Lyapunov control, we present a proposal to drive quasiparticles into a topological mode in quantum systems described by quadratic Hamiltonian. The merit of this control strategy is that only manipulation of the boundary sites are required, and the proposal works for both Fermi and Bose systems. We take the Kitaev's chain as an illustration for Fermi system and show that by manipulating the chemical potential of the boundary sites, we can steer an arbitrary excitation mode into the Majorana zero mode. For Bose system, taking the noninteracting Su-Schrieffer-Heeger (SSH) model as an example, we illustrate how to drive the system into the edge mode, i.e., the mode localized at the boundary sites. Finally, we explore the possibility to replace the continuous control field by square wave pulses.

  15. Online Distance Recovery for a Sewer Inspection Robot Marina Kolesnik

    E-Print Network [OSTI]

    Kolesnik, Marina

    Online Distance Recovery for a Sewer Inspection Robot Marina Kolesnik Institute for Autonomous computation based on images taken in a sewer by a robot-inspector is presented. Modern concrete sewers provide regular marks on the sewer images and can be used for their 3-D interpretation. After each robot

  16. On the White Dwarf distances to Galactic Globular Clusters

    E-Print Network [OSTI]

    M. Salaris; S. Cassisi; E. Garcia-Berro; J. Isern; S. Torres

    2001-03-20

    We analyze in detail various possible sources of systematic errors on the distances of globular clusters derived by fitting a local template DA white dwarf sequence to the cluster counterpart (the so-called WD-fitting technique). We find that the unknown thickness of the hydrogen layer of white dwarfs in clusters plays a non negligible role. For reasonable assumptions - supported by the few sparse available observational constraints - about the unknown mass and thickness of the hydrogen layer for the cluster white dwarfs, a realistic estimate of the systematic error on the distance is within +-0.10 mag. However, particular combinations of white dwarf masses and envelope thicknesses - which at present cannot be excluded a priori - could produce larger errors. Contamination of the cluster DA sequence by non-DA white dwarfs introduces a very small systematic error of about -0.03 mag in the Mv/(V-I) plane, but in the Mv/(B-V) plane the systematic error amounts to ~ +0.20 mag. Contamination by white dwarfs with helium cores should not influence appreciably the WD-fitting distances. Finally, we obtain a derivative D((m-M)v)/D(E(B-V))~ -5.5 for the WD-fitting distances, which is very similar to the dependence found when using the Main Sequence fitting technique.

  17. Defense from a distance ORNL robotics sensors detect underwater

    E-Print Network [OSTI]

    SCIENCE Defense from a distance ORNL robotics sensors detect underwater explosive ordnance Modern of the future are not human oriented, but robotics oriented. For robots to perform their mission of safety at the forefront of robotics design, these are the droids we are looking for. ­Dylan Platz Karnowski analyzes

  18. GIS IN LAND RESOURCE MANAGEMENT Distance Education Section

    E-Print Network [OSTI]

    Ma, Lena

    1 GIS IN LAND RESOURCE MANAGEMENT SWS 5721C Distance Education Section [GIS: Geographic Information, reading material, library of GIS video clips, and GIS resources) Email and discussion board are used communication): Chat sessions: Thursday 8-9 p.m. US Eastern Time. A virtual computer lab is used for GIS

  19. The breakpoint distance for signed sequences (extended abstract)

    E-Print Network [OSTI]

    Chauve, Cedric

    of reversals, insertion and deletion between two genomes, G and H with possibly multiple genes from the same the evolutionary distance between genomes in terms of gene order rearrangements has been intensively studied, from in comparative genomics [2]. From an algorithmic point, it can roughly be de#12;ned as follows: given a set

  20. Detecting VoIP Floods Using the Hellinger Distance

    E-Print Network [OSTI]

    Wang, Haining

    Detecting VoIP Floods Using the Hellinger Distance Hemant Sengar, Student Member, IEEE, Haining running over the TCP/IP suite, it is susceptible to flooding attacks. If flooded, as a time. Because multiple protocols are involved in a VoIP service and most of them are susceptible to flooding

  1. Topographic Distance Functions for Interpolation of Meteorological Data

    E-Print Network [OSTI]

    Hamann, Bernd

    Topographic Distance Functions for Interpolation of Meteorological Data Burkhard Lehner1 , Georg evapotranspiration ET0. It is usually estimated from other meteorological quantities measured at weather stations for agricultural and urban needs. Also for setting up a land use plan it can be a base for decisions. One important

  2. 75Radiation Dose and Distance This iconic photo was

    E-Print Network [OSTI]

    on March 15, a few days after the Japan 2011 earthquake, which caused severe damage to the Fukushima Press/Kyodo News) The devastating Japan 2011 earthquake damaged the nuclear reactors in Fukushima, which: Date Distance (km) Location Dose Rate (microSeiverts/hr) March 15 1 km Fukushima #2 plant 8,200 March

  3. Weighted Distance Weighted Discrimination and its Asymptotic Properties

    E-Print Network [OSTI]

    Zhang, Hao "Helen"

    and Phrases: Fisher consistency; High-dimensional, low-sample size data; Linear discrimination; Non-standard Carolina Center for Genome Sciences, University of North Carolina, Chapel Hill, NC 27599 4 School The Support Vector Machine (SVM) (Vapnik 1995) is a powerful classification tool. Distance Weighted

  4. Computing the minimal distance of cyclic codes Jose Felipe Voloch

    E-Print Network [OSTI]

    Voloch, Felipe

    , 0 r r and compute a table of all codewords with exactly r nonzero coordinates among its first k below. Chen produced a table of the minimal distances of binary cyclic codes of length at most 65 which shift of c with exactly r nonzero coordinates among its first k coordinates. See [CS, lemma 1

  5. THE FIRST ACCURATE PARALLAX DISTANCE TO A BLACK HOLE

    E-Print Network [OSTI]

    Miller-Jones, J. C. A.

    Using astrometric VLBI observations, we have determined the parallax of the black hole X-ray binary V404 Cyg to be 0.418 [plus or minus sign] 0.024 mas, corresponding to a distance of 2.39 [plus or minus sign] 0.14 kpc, ...

  6. TRIUMAH 2012 RESULTS MALES BY AGE * distance measured in miles

    E-Print Network [OSTI]

    Thomas, David D.

    TRIUMAH 2012 RESULTS MALES BY AGE * distance measured in miles Last Name First Name Swim Bike Run+ Ferber Warren 0.364 7.390 2.300 10.054 50+ Luther Richard 0.500 6.900 2.420 9.820 Ages Other Strom Thad 0

  7. Free Energy Surfaces from Single-Distance Information Philipp Schuetz,

    E-Print Network [OSTI]

    Caflisch, Amedeo

    Free Energy Surfaces from Single-Distance Information Philipp Schuetz, Rene´ Wuttke, Benjamin We propose a network-based method for determining basins and barriers of complex free energy surfaces for the iterative determination of individual basins by the minimum-cut-based free energy profile, a barrier

  8. Distance Estimation Using Bidirectional Communications Without Synchronous Clocking

    E-Print Network [OSTI]

    Sethares, William A.

    Estimation via Asynchronous Clocks (DEVAC) and (2) Distance Estimation via Asynchronous Phase Shift (DEVAPS a reply that acts analogously to the return of the radar. The DEVAPS method operates analogously and frequency accuracy are computed to show the limits of performance with the DEVAPS method. The analytical

  9. The Exemplar Breakpoint Distance for nontrivial genomes cannot be approximated

    E-Print Network [OSTI]

    Fertin, Guillaume

    The Exemplar Breakpoint Distance for non­trivial genomes cannot be approximated Guillaume Blin 1 ­ France guillaume.fertin@univ­nantes.fr Abstract. A promising and active field of comparative genomics con­ sists in comparing two genomes by establishing a one­to­one correspon­ dence (i.e., a matching) between

  10. Of mice and men: Algorithms for evolutionary distances

    E-Print Network [OSTI]

    Kececioglu, John

    Of mice and men: Algorithms for evolutionary distances between genomes with translocation \\Lambda is combinatorial algorithms for genome rear­ rangement. In the course of its evolution, the genome of an organism is to determine the minimum number of such events that transform one genome to another. This number is called

  11. On the Impact of Cepheid Outliers on the Distance Ladder

    E-Print Network [OSTI]

    Becker, M R; Rozo, E; Marshall, P; Rykoff, E S

    2015-01-01

    Recent work by Efstathiou (2014) highlighted the importance of outliers in the period-luminosity (PL) relation of Cepheid data on the distance ladder. We present a statistical framework designed to address this difficulty, and apply it to the Cepheid data from the Milky Way (MW), the Large Magellanic Cloud (LMC), and the Riess et al. (2011) (hereafter R11) dataset. We consider two possible models of the outlier population in the R11 Cepheid dataset. One of these models exhibits tension between the PL relation of the R11 cepheids and the MW+LMC cepheids, while the other does not. We extend our models to adequately account for tension between the cepheid data sets when appropriate. Our outlier treatment has a significant impact on the distance scales to Supernovae hosts with Cepheid distances, increasing the uncertainty in these distances by a median factor of ~30%. We further find that our Cepheid outlier treatment translates into a modest, but non-negligible increase in the statistical uncertainty of H0, addi...

  12. Detecting Anomalies in Unmanned Vehicles Using the Mahalanobis Distance

    E-Print Network [OSTI]

    Kaminka, Gal A.

    the vehicles deviations from nominal behavior. I. INTRODUCTION Unmanned Aerial Vehicles (UAVs) and UnmannedDetecting Anomalies in Unmanned Vehicles Using the Mahalanobis Distance Raz Lin, Eliyahu Khalastchi 52900 {linraz,galk}@cs.biu.ac.il Abstract-- The use of unmanned autonomous vehicles is becoming more

  13. Modelling long-distance seed dispersal in heterogeneous landscapes.

    SciTech Connect (OSTI)

    Levey, Douglas, J.; Tewlsbury, Joshua, J.; Bolker, Benjamin, M.

    2008-01-01

    1. Long-distance seed dispersal is difficult to measure, yet key to understanding plant population dynamics and community composition. 2. We used a spatially explicit model to predict the distribution of seeds dispersed long distances by birds into habitat patches of different shapes. All patches were the same type of habitat and size, but varied in shape. They occurred in eight experimental landscapes, each with five patches of four different shapes, 150 m apart in a matrix of mature forest. The model was parameterized with smallscale movement data collected from field observations of birds. In a previous study we validated the model by testing its predictions against observed patterns of seed dispersal in real landscapes with the same types and spatial configuration of patches as in the model. 3. Here we apply the model more broadly, examining how patch shape influences the probability of seed deposition by birds into patches, how dispersal kernels (distributions of dispersal distances) vary with patch shape and starting location, and how movement of seeds between patches is affected by patch shape. 4. The model predicts that patches with corridors or other narrow extensions receive higher numbers of seeds than patches without corridors or extensions. This pattern is explained by edgefollowing behaviour of birds. Dispersal distances are generally shorter in heterogeneous landscapes (containing patchy habitat) than in homogeneous landscapes, suggesting that patches divert the movement of seed dispersers, ‘holding’ them long enough to increase the probability of seed defecation in the patches. Dispersal kernels for seeds in homogeneous landscapes were smooth, whereas those in heterogenous landscapes were irregular. In both cases, long-distance (> 150 m) dispersal was surprisingly common, usually comprising approximately 50% of all dispersal events. 5. Synthesis . Landscape heterogeneity has a large influence on patterns of long-distance seed dispersal. Our results suggest that long-distance dispersal events can be predicted using spatially explicit modelling to scale-up local movements, placing them in a landscape context. Similar techniques are commonly used by landscape ecologists to model other types of movement; they offer much promise to the study of seed dispersal.

  14. Geometric characterization of separability and entanglement in pure Gaussian states by single-mode unitary operations

    SciTech Connect (OSTI)

    Adesso, Gerardo; Giampaolo, Salvatore M.; Illuminati, Fabrizio

    2007-10-15

    We present a geometric approach to the characterization of separability and entanglement in pure Gaussian states of an arbitrary number of modes. The analysis is performed adapting to continuous variables a formalism based on single subsystem unitary transformations that has been recently introduced to characterize separability and entanglement in pure states of qubits and qutrits [S. M. Giampaolo and F. Illuminati, Phys. Rev. A 76, 042301 (2007)]. In analogy with the finite-dimensional case, we demonstrate that the 1xM bipartite entanglement of a multimode pure Gaussian state can be quantified by the minimum squared Euclidean distance between the state itself and the set of states obtained by transforming it via suitable local symplectic (unitary) operations. This minimum distance, corresponding to a, uniquely determined, extremal local operation, defines an entanglement monotone equivalent to the entropy of entanglement, and amenable to direct experimental measurement with linear optical schemes.

  15. Guiding Center Equations for Ideal Magnetohydrodynamic Modes

    SciTech Connect (OSTI)

    Roscoe B. White

    2013-02-21

    Guiding center simulations are routinely used for the discovery of mode-particle resonances in tokamaks, for both resistive and ideal instabilities and to find modifications of particle distributions caused by a given spectrum of modes, including large scale avalanches during events with a number of large amplitude modes. One of the most fundamental properties of ideal magnetohydrodynamics is the condition that plasma motion cannot change magnetic topology. The conventional representation of ideal magnetohydrodynamic modes by perturbing a toroidal equilibrium field through ?~B = ? X (? X B) however perturbs the magnetic topology, introducing extraneous magnetic islands in the field. A proper treatment of an ideal perturbation involves a full Lagrangian displacement of the field due to the perturbation and conserves magnetic topology as it should. In order to examine the effect of ideal magnetohydrodynamic modes on particle trajectories the guiding center equations should include a correct Lagrangian treatment. Guiding center equations for an ideal displacement ? are derived which perserve the magnetic topology and are used to examine mode particle resonances in toroidal confinement devices. These simulations are compared to others which are identical in all respects except that they use the linear representation for the field. Unlike the case for the magnetic field, the use of the linear field perturbation in the guiding center equations does not result in extraneous mode particle resonances.

  16. Guiding center equations for ideal magnetohydrodynamic modes

    SciTech Connect (OSTI)

    White, R. B. [Plasma Physics Laboratory, Princeton University, P.O. Box 451, Princeton, New Jersey 08543 (United States)

    2013-04-15

    Guiding center simulations are routinely used for the discovery of mode-particle resonances in tokamaks, for both resistive and ideal instabilities and to find modifications of particle distributions caused by a given spectrum of modes, including large scale avalanches during events with a number of large amplitude modes. One of the most fundamental properties of ideal magnetohydrodynamics is the condition that plasma motion cannot change magnetic topology. The conventional representation of ideal magnetohydrodynamic modes by perturbing a toroidal equilibrium field through {delta}B-vector={nabla} Multiplication-Sign ({xi}-vector Multiplication-Sign B-vector), however, perturbs the magnetic topology, introducing extraneous magnetic islands in the field. A proper treatment of an ideal perturbation involves a full Lagrangian displacement of the field due to the perturbation and conserves magnetic topology as it should. In order to examine the effect of ideal magnetohydrodynamic modes on particle trajectories, the guiding center equations should include a correct Lagrangian treatment. Guiding center equations for an ideal displacement {xi}-vector are derived which preserve the magnetic topology and are used to examine mode particle resonances in toroidal confinement devices. These simulations are compared to others which are identical in all respects except that they use the linear representation for the field. Unlike the case for the magnetic field, the use of the linear field perturbation in the guiding center equations does not result in extraneous mode particle resonances.

  17. Information-Entropic for Travelling Solitons in Lorentz and CPT Breaking Systems

    E-Print Network [OSTI]

    R. A. C. Correa; Roldao da Rocha; A. de Souza Dutra

    2015-02-08

    In this work we group three research topics apparently disconnected, namely solitons, Lorentz symmetry breaking and entropy. Following a recent work [Phys. Lett. B 713 (2012) 304], we show that it is possible to construct in the context of travelling wave solutions a configurational entropy measure in functional space, from the field configurations. Thus, we investigate the existence and properties of travelling solitons in Lorentz and CPT breaking scenarios for a class of models with two interacting scalar fields. Here, we obtain a complete set of exact solutions for the model studied which display both double and single-kink configurations. In fact, such models are very important in applications that include Bloch branes, Skyrmions, Yang-Mills, Q-balls, oscillons and various superstring-motivated theories. We find that the so-called Configurational Entropy (CE) for travelling solitons, which we name as travelling Configurational Entropy (TCE), shows that the best value of parameter responsible to break the Lorentz symmetry is one where the energy density is distributed equally around the origin. In this way, the information-theoretical measure of travelling solitons in Lorentz symmetry violation scenarios opens a new window to probe situations where the parameters responsible for breaking the symmetries are random. In this case, the TCE selects the best value.

  18. National and Racial Identity and the Desire for Expansion: A Study of American Travel Narratives, 1790-1850 

    E-Print Network [OSTI]

    Jeong, Jin Man

    2011-08-08

    and implicit meaning for national self-definition and expansionism. From 1773 to 1778, William Bartram traveled through the South?Carolina, Georgia, and Florida, owned then by Spain, and more than a decade later published his Travels (1791). Washington... Irving traveled to what is now Oklahoma in 1832, after his return from his sojourn in Europe for seventeen years. Irving accompanied Henry L. Ellsworth, a commissioner of the newly formed Board of Indian Affairs, who had a mission to report...

  19. Using GPS Travel Data to Assess the Real World Driving Energy Use of Plug-In Hybrid Electric Vehicles (PHEVs)

    SciTech Connect (OSTI)

    Gonder, J.; Markel, T.; Simpson, A.; Thornton, M.

    2007-05-01

    Highlights opportunities using GPS travel survey techniques and systems simulation tools for plug-in hybrid vehicle design improvements, which maximize the benefits of energy efficiency technologies.

  20. Water-waves modes trapped in a canal by a body with the rough surface

    E-Print Network [OSTI]

    G. Cardone; T. Durante; S. A. Nazarov

    2009-10-06

    The problem about a body in a three dimensional infinite channel is considered in the framework of the theory of linear water-waves. The body has a rough surface characterized by a small parameter $\\epsilon>0$ while the distance of the body to the water surface is also of order $\\epsilon$. Under a certain symmetry assumption, the accumulation effect for trapped mode frequencies is established, namely, it is proved that, for any given $d>0$ and integer $N>0$, there exists $\\epsilon(d,N)>0$ such that the problem has at least $N$ eigenvalues in the interval $(0,d)$ of the continuous spectrum in the case $\\epsilon\\in(0,\\epsilon(d,N)) $. The corresponding eigenfunctions decay exponentially at infinity, have finite energy, and imply trapped modes.

  1. An Accurate Distance to High-Velocity Cloud Complex C

    E-Print Network [OSTI]

    C. Thom; J. E. G. Peek; M. E. Putman; Carl Heiles; K. M. G. Peek; R. Wilhelm

    2008-04-23

    We report an accurate distance of d = 10+/-2.5kpc to the high-velocity cloud Complex C. Using high signal-to-noise Keck/HIRES spectra of two horizontal-branch stars, we have detected CaII K absorption lines from the cloud. Significant non-detections toward a further 3 stars yield robust lower distance limits. The resulting HI mass of Complex C is 4.9^{+2.8}_{-2.2} x 10^6 Msun; a total mass of 8.2^{+4.6}_{-2.6} x 10^6 Msun is implied, after corrections for helium and ionization. At 10kpc, Complex C has physical dimensions 3x15 kpc, and if it is as thick as it is wide, then the average density is log ~ -2.5. We estimate the contribution of Complex C to the mass influx may be as high as ~0.14 Msun/yr.

  2. A New Resource for College Distance Education Astronomy Laboratory Exercises

    E-Print Network [OSTI]

    Vogt, Nicole P; Muise, Amy Smith

    2015-01-01

    This article introduces a set of distance education astronomy laboratory exercises for use by college students and instructors and discuss first usage results. This General Astronomy Education Source (GEAS) exercise set contains eight two-week projects designed to guide students through both core content and mathematical applications of general astronomy material. Projects are divided between hands-on activities and computer-aided analyses of modern astronomical data. The suite of online resources includes student and instructor guides, laboratory report templates, learning objectives, video tutorials, plotting tools, and web-based applications that allow students to analyze both images and spectra of astronomical objects. A pilot usage study indicates that distance learners using these materials perform as well or better than a comparison cohort of on-campus students. We are actively seeking collaborators to use these resources in astronomy courses and other educational venues.

  3. Distance Priors from \\emph{Planck} 2015 data

    E-Print Network [OSTI]

    Qing-Guo Huang; Ke Wang; Sai Wang

    2015-09-03

    We update the distance priors by adopting $Planck~ \\textrm{TT,TE,EE}+\\textrm{lowP}$ data released in 2015, and our results impose at least $30\\%$ tighter constraints than those from $Planck~ \\textrm{TT}+\\textrm{lowP}$. Combining the distance priors with the combination of supernova Union~2.1 compilation of 580 SNe (Union~2.1) and low redshift Baryon Acoustic Oscillation (BAO) data, we constrain the cosmological parameters in the freely binned dark energy (FBDE) and FBDE$+\\Omega_k$ models respectively, and find that the equations of state of dark energy in both models are consistent with $w=-1$. Furthermore, we show that the tension with the BAO data at $z=2.34$ from Ly$\\alpha$ forest (Ly$\\alpha$F) auto-correlation and Combined Ly$\\alpha$F cannot be relaxed in the FBDE and FBDE$+\\Omega_k$ models.

  4. Gromov-Hausdorff Distance for Quantum Metric Spaces

    E-Print Network [OSTI]

    Marc A. Rieffel

    2003-02-20

    By a quantum metric space we mean a C^*-algebra (or more generally an order-unit space) equipped with a generalization of the Lipschitz seminorm on functions which is defined by an ordinary metric. We develop for compact quantum metric spaces a version of Gromov-Hausdorff distance. We show that the basic theorems of the classical theory have natural quantum analogues. Our main example involves the quantum tori, $A_{\\th}$. We show, for consistently defined ``metrics'', that if a sequence $\\{\\th_n\\}$ of parameters converges to a parameter $\\th$, then the sequence $\\{A_{\\th_n}\\}$ of quantum tori converges in quantum Gromov-Hausdorff distance to $A_{\\th}$.

  5. A characterization of Q-polynomial distance-regular graphs

    E-Print Network [OSTI]

    Jurisic, Aleksandar; Zitnik, Arjana

    2009-01-01

    We obtain the following characterization of $Q$-polynomial distance-regular graphs. Let $\\G$ denote a distance-regular graph with diameter $d\\ge 3$. Let $E$ denote a minimal idempotent of $\\G$ which is not the trivial idempotent $E_0$. Let $\\{\\theta_i^*\\}_{i=0}^d$ denote the dual eigenvalue sequence for $E$. We show that $E$ is $Q$-polynomial if and only if (i) the entry-wise product $E \\circ E$ is a linear combination of $E_0$, $E$, and at most one other minimal idempotent of $\\G$; (ii) there exists a complex scalar $\\beta$ such that $\\theta^*_{i-1}-\\beta \\theta^*_i + \\theta^*_{i+1}$ is independent of $i$ for $1 \\le i \\le d-1$; (iii) $\\theta^*_i \

  6. Scanning optical microscope with long working distance objective

    DOE Patents [OSTI]

    Cloutier, Sylvain G. (Newark, DE)

    2010-10-19

    A scanning optical microscope, including: a light source to generate a beam of probe light; collimation optics to substantially collimate the probe beam; a probe-result beamsplitter; a long working-distance, infinity-corrected objective; scanning means to scan a beam spot of the focused probe beam on or within a sample; relay optics; and a detector. The collimation optics are disposed in the probe beam. The probe-result beamsplitter is arranged in the optical paths of the probe beam and the resultant light from the sample. The beamsplitter reflects the probe beam into the objective and transmits resultant light. The long working-distance, infinity-corrected objective is also arranged in the optical paths of the probe beam and the resultant light. It focuses the reflected probe beam onto the sample, and collects and substantially collimates the resultant light. The relay optics are arranged to relay the transmitted resultant light from the beamsplitter to the detector.

  7. Light deflection in Weyl gravity: critical distances for photon paths

    E-Print Network [OSTI]

    S. Pireaux

    2004-03-16

    The Weyl gravity appears to be a very peculiar theory. The contribution of the Weyl linear parameter to the effective geodesic potential is opposite for massive and nonmassive geodesics. However, photon geodesics do not depend on the unknown conformal factor, unlike massive geodesics. Hence light deflection offers an interesting test of the Weyl theory. In order to investigate light deflection in the setting of Weyl gravity, we first distinguish between a weak field and a strong field approximation. Indeed, the Weyl gravity does not turn off asymptotically and becomes even stronger at larger distances. We then take full advantage of the conformal invariance of the photon effective potential to provide the key radial distances in Weyl gravity. According to those, we analyze the weak and strong field regime for light deflection. We further show some amazing features of the Weyl theory in the strong regime.

  8. Electrical probe diagnostics for the laminar flame quenching distance

    SciTech Connect (OSTI)

    Karrer, Maxime; Makarov, Maxime; Bellenoue, Marc; Labuda, Sergei; Sotton, Julien

    2010-02-15

    A simplified theory, previously developed for the general case of weakly ionized gas flow, is used to predict electrical probe response when the flame is quenched on the probe surface. This theory is based on the planar model of space charge sheaths around the measuring electrode. For the flame quenching case, by assuming that the sheath thickness is comparable with the thermal boundary layer thickness, probe current can be related to flame quenching distance. The theoretical assumptions made to obtain the analytical formulation of probe current were experimentally proved by using direct visualization and high-frequency PIV. The direct visualization method was also used to validate the results of flame quenching distance values obtained with electrical probe. The electrical probe diagnostics have been verified for both head-on and sidewall flame quenching regimes and for stoichiometric methane/air and propane/air mixtures in a pressure range of 0.05-0.6 MPa. (author)

  9. THE MEMBERSHIP AND DISTANCE OF THE OPEN CLUSTER COLLINDER 419

    SciTech Connect (OSTI)

    Roberts, Lewis C.; Gies, Douglas R.; Parks, J. Robert; Grundstrom, Erika D.; McSwain, M. Virginia; Berger, David H.; Mason, Brian D.; Ten Brummelaar, Theo A.; Turner, Nils H. E-mail: gies@chara.gsu.ed E-mail: erika.grundstrom@vanderbilt.ed E-mail: dberger@sysplan.co E-mail: theo@chara-array.or

    2010-09-15

    The young open cluster Collinder 419 surrounds the massive O star, HD 193322, that is itself a remarkable multiple star system containing at least four components. Here we present a discussion of the cluster distance based upon new spectral classifications of the brighter members, UBV photometry, and an analysis of astrometric and photometric data from the third U. S. Naval Observatory CCD Astrograph Catalog and Two Micron All Sky Survey Catalog. We determine an average cluster reddening of E(B - V) = 0.37 {+-} 0.05 mag and a cluster distance of 741 {+-} 36 pc. The cluster probably contains some very young stars that may include a reddened M3 III star, IRAS 20161+4035.

  10. Distance-redshift relations in an anisotropic cosmological model

    SciTech Connect (OSTI)

    Menezes, R. S. Jr. [Instituto Federal da Bahia, Salvador, BA (Brazil); Pigozzo, C.; Carneiro, S., E-mail: rsmjr@ifba.edu.br, E-mail: cpigozzo@ufba.br, E-mail: saulo.carneiro.ufba@gmail.com [Instituto de Física, Universidade Federal da Bahia, Salvador, Bahia (Brazil)

    2013-03-01

    In this paper we study an anisotropic model generated from a particular Bianchi type-III metric, which is a generalization of Gödel's metric and an exact solution of Einstein's field equations. We analyse type Ia supernova data, namely the SDSS sample calibrated with the MLCS2k2 fitter, and we verify in which ranges of distances and redshifts the anisotropy could be observed. We also consider, in a joint analysis, the position of the first peak in the CMB anisotropy spectrum, as well as current observational constraints on the Hubble constant. We conclude that a small anisotropy is permitted by the data, and that more accurate measurements of supernova distances above z = 2 might indicate the existence of such anisotropy in the universe.

  11. Short distance signatures in Cosmology: Why not in Black Holes?

    E-Print Network [OSTI]

    Roberto Casadio; Laura Mersini

    2002-08-07

    Current theoretical investigations seem to indicate the possibility of observing signatures of short distance physics in the Cosmic Microwave Background spectrum. We try to gain a deeper understanding on why all information about this regime is lost in the case of Black Hole radiation but not necessarily so in a cosmological setting by using the moving mirror as a toy model for both backgrounds. The different responses of the Hawking and Cosmic Microwave Background spectra to short distance physics are derived in the appropriate limit when the moving mirror mimics a Black Hole background or an expanding universe. The different sensitivities to new physics, displayed by both backgrounds, are clarified through an averaging prescription that accounts for the intrinsic uncertainty in their quantum fluctuations. We then proceed to interpret the physical significance of our findings for time-dependent backgrounds in the light of nonlocal string theory.

  12. Evaluating a Master's Degree Program via Distance Education 

    E-Print Network [OSTI]

    Lara-Alecio, Rafael; Kemp, Janie; Treviñ o, Polly; Tong, Fuhui; Castillo, Raymond

    2010-10-22

    -1 Evaluating a Master?s Degree Program via Distance Education Dr. Rafael Lara-Alecio Janie Kemp Polly Trevi?o Fuhui Tong Raymond Castillo TTVN Conference Galveston, TX January 18, 2006 Texas A&M University Bilingual Education Program Dept... and High School Levels Online Program Texas A&M University Bilingual Education Programs ? Undergraduate Program ? Currently 105 undergraduate students working toward teaching degree and certification in Bil/ESL ? Master?s Program ? First Master?s...

  13. Time, Distance, Velocity, Redshift: a personal guided tour

    E-Print Network [OSTI]

    T. Kiang

    2003-08-01

    An attempt to answer the question 'Can we observe galaxies that recede faster than light ?' led to a re-examination of the notions of time, distance, velocity and redshift as they occur in newtonian physics, special relativity, general relativity and cosmology. A number of misconceptions were uncovered. It was found that, once freed of special relativity preconceptions, the above question is easily and unequivocally answered

  14. ToF-SIMS Depth Profiling Of Insulating Samples, Interlaced Mode Or Non-interlaced Mode?

    SciTech Connect (OSTI)

    Wang, Zhaoying; Jin, Ke; Zhang, Yanwen; Wang, Fuyi; Zhu, Zihua

    2014-11-01

    Dual beam depth profiling strategy has been widely adopted in ToF-SIMS depth profiling, in which two basic operation modes, interlaced mode and non-interlaced mode, are commonly used. Generally, interlaced mode is recommended for conductive or semi-conductive samples, whereas non-interlaced mode is recommended for insulating samples, where charge compensation can be an issue. Recent publications, however, show that the interlaced mode can be used effectively for glass depth profiling, despite the fact that glass is an insulator. In this study, we provide a simple guide for choosing between interlaced mode and non-interlaced mode for insulator depth profiling. Two representative cases are presented: (1) depth profiling of a leached glass sample, and (2) depth profiling of a single crystal MgO sample. In brief, the interlaced mode should be attempted first, because (1) it may provide reasonable-quality data, and (2) it is time-saving for most cases, and (3) it introduces low H/C/O background. If data quality is the top priority and measurement time is flexible, non-interlaced mode is recommended because interlaced mode may suffer from low signal intensity and poor mass resolution. A big challenge is tracking trace H/C/O in a highly insulating sample (e.g., MgO), because non-interlaced mode may introduce strong H/C/O background but interlaced mode may suffer from low signal intensity. Meanwhile, a C or Au coating is found to be very effective to improve the signal intensity. Surprisingly, the best analyzing location is not on the C or Au coating, but at the edge (outside) of the coating.

  15. RANDOM COEFFICIENT H MODE CONFINEMENT SCALINGS

    E-Print Network [OSTI]

    ;nement time for most other machines, we are e#11;ectively penalising ASDEX. This small penalty may device scalings are more uniform and closer to standard L mode con#12;nement scaling. To model

  16. Creation mechanism of quantum accelerator modes

    E-Print Network [OSTI]

    Summy, G. S.

    We investigate the creation mechanism of quantum accelerator modes which are attributed to the existence of the stability islands in an underlying pseudoclassical phase space of the quantum delta-kicked accelerator. Quantum ...

  17. Temperature compensated two-mode fiber interferometer 

    E-Print Network [OSTI]

    Doma, Jagdish Ramchandra

    1993-01-01

    In this thesis we propose an innovative approach of designing and implementing a temperature compensated two-mode optical fiber interferometer in a control system of stabilizing the wavelength of a laser. We give the procedure for designing...

  18. Switched-Mode Power Converter Programmable

    E-Print Network [OSTI]

    Switched-Mode Power Converter Programmable compensator Identification & design Vref DPWM vout digital controller design for switching power converters. Starting from an experimentally identified Digital Controller Design for Switching Converters Abstract--This paper presents an approach to automated

  19. Single mode pulsed dye laser oscillator

    DOE Patents [OSTI]

    Hackel, Richard P. (Livermore, CA)

    1992-01-01

    A single mode pulsed dye laser oscillator is disclosed. The dye laser oscillator provides for improved power efficiency by reducing the physical dimensions of the overall laser cavity, which improves frequency selection capability.

  20. AN IMPROVED METHOD TO TEST THE DISTANCE-DUALITY RELATION

    SciTech Connect (OSTI)

    Yang, Xi; Yu, Hao-Ran; Zhang, Tong-Jie [Department of Astronomy, Beijing Normal University, Beijing 100875 (China)] [Department of Astronomy, Beijing Normal University, Beijing 100875 (China); Zhang, Zhi-Song, E-mail: tjzhang@bnu.edu.cn [Department of Aerospace Engineering, School of Astronautics, Harbin Institute of Technology (HIT), Harbin Heilongjiang 150001 (China)] [Department of Aerospace Engineering, School of Astronautics, Harbin Institute of Technology (HIT), Harbin Heilongjiang 150001 (China)

    2013-11-10

    Many researchers have performed cosmological-model-independent tests for the distance-duality (DD) relation. Theoretical work has been conducted based on the results of these tests. However, we find that almost all of these tests were perhaps not cosmological-model-independent after all, because the distance moduli taken from a given type Ia supernovae (SNe Ia) compilation are dependent on a given cosmological model and Hubble constant. In this Letter, we overcome these defects and by creating a new cosmological-model-independent test for the DD relation. We use the original data from the Union2 SNe Ia compilation and the angular diameter distances from two galaxy cluster samples compiled by De Filippis et al. and Bonamente et al. to test the DD relation. Our results suggest that the DD relation is compatible with observations, and the spherical model is slightly better than the elliptical model at describing the intrinsic shape of galaxy clusters if the DD relation is valid. However, these results are different from those of previous work.

  1. A short working distance multiple crystal x-ray spectrometer

    SciTech Connect (OSTI)

    Dickinson, B.; Seidler, G. T.; Webb, Z. W.; Bradley, J. A.; Nagle, K. P. [Department of Physics, University of Washington, Seattle, Washington 98195 (United States); Heald, S. M. [Advanced Photon Source, Argonne National Laboratories, Argonne, Illinois 60439 (United States); Gordon, R. A. [Department of Physics, Simon Fraser University, Burnaby, British Columbia V5A 1S6 (Canada); Chou, I. M. [U.S. Geological Survey, Reston, Virginia 20192 (United States)

    2008-12-15

    For x-ray spot sizes of a few tens of microns or smaller, a millimeter-sized flat analyzer crystal placed {approx}1 cm from the sample will exhibit high energy resolution while subtending a collection solid angle comparable to that of a typical spherically bent crystal analyzer (SBCA) at much larger working distances. Based on this observation and a nonfocusing geometry for the analyzer optic, we have constructed and tested a short working distance (SWD) multicrystal x-ray spectrometer. This prototype instrument has a maximum effective collection solid angle of 0.14 sr, comparable to that of 17 SBCA at 1 m working distance. We find good agreement with prior work for measurements of the Mn K{beta} x-ray emission and resonant inelastic x-ray scattering for MnO, and also for measurements of the x-ray absorption near-edge structure for Dy metal using L{alpha}{sub 2} partial-fluorescence yield detection. We discuss future applications at third- and fourth-generation light sources. For concentrated samples, the extremely large collection angle of SWD spectrometers will permit collection of high-resolution x-ray emission spectra with a single pulse of the Linac Coherent Light Source. The range of applications of SWD spectrometers and traditional multi-SBCA instruments has some overlap, but also is significantly complementary.

  2. Failure modes in surface micromachined microelectromechanical actuators

    SciTech Connect (OSTI)

    Miller, S.L.; Rodgers, M.S.; LaVigne, G.; Sniegowski, J.J.; Clews, P.; Tanner, D.M.; Peterson, K.A.

    1998-03-01

    In order for the rapidly emerging field of MicroElectroMechanical Systems (MEMS) to meet its extraordinary expectations regarding commercial impact, issues pertaining to how they fail must be understood. The authors identify failure modes common to a broad range of MEMS actuators, including adhesion (stiction) and friction induced failures caused by improper operational methods, mechanical instabilities, and electrical instabilities. Demonstrated methods to mitigate these failure modes include implementing optimized designs, model based operational methods, and chemical surface treatments.

  3. Reflection of a TE-polarised Gaussian beam from a layered structure under conditions of resonance excitation of waveguide modes

    SciTech Connect (OSTI)

    Sokolov, V I; Marusin, N V; Molchanova, S I; Savelyev, A G; Khaydukov, E V; Panchenko, V Ya [Institute on Laser and Information Technologies, Russian Academy of Sciences, Shatura, Moscow Region (Russian Federation)

    2014-11-30

    The problem of reflection of a TE-polarised Gaussian light beam from a layered structure under conditions of resonance excitation of waveguide modes using a total internal reflection prism is considered. Using the spectral approach we have derived the analytic expressions for the mode propagation lengths, widths and depths of m-lines (sharp and narrow dips in the angular dependence of the specular reflection coefficient), depending on the structure parameters. It is shown that in the case of weak coupling, when the propagation lengths l{sub m} of the waveguide modes are mainly determined by the extinction coefficient in the film, the depth of m-lines grows with the mode number m. In the case of strong coupling, when l{sub m} is determined mainly by the radiation of modes into the prism, the depth of m-lines decreases with increasing m. The change in the TE-polarised Gaussian beam shape after its reflection from the layered structure is studied, which is determined by the energy transfer from the incident beam into waveguide modes that propagate along the structure by the distance l{sub m}, are radiated in the direction of specular reflection and interfere with a part of the beam reflected from the working face of the prism. It is shown that this interference can lead to the field intensity oscillations near m-lines. The analysis of different methods for determining the parameters of thin-film structures is presented, including the measurement of mode angles ?{sub m} and the reflected beam shape. The methods are based on simultaneous excitation of a few waveguide modes in the film with a strongly focused monochromatic Gaussian beam, the waist width of which is much smaller than the propagation length of the modes. As an example of using these methods, the refractive index and the thickness of silicon monoxide film on silica substrate at the wavelength 633 nm are determined. (fibre and integrated-optical structures)

  4. Particle Distribution Modification by Low Amplitude Modes

    SciTech Connect (OSTI)

    White, R. B.; Gorelenkov, N.; Heidbrink, W. W.; Van Zeeland, M. A.

    2009-08-28

    Modification of a high energy particle distribution by a spectrum of low amplitude modes is investigated using a guiding center code. Only through resonance are modes effective in modifying the distribution. Diagnostics are used to illustrate the mode-particle interaction and to find which effects are relevant in producing significant resonance, including kinetic Poincare plots and plots showing those orbits with time averaged mode-particle energy transfer. Effects of pitch angle scattering and drag are studied, as well as plasma rotation and time dependence of the equilibrium and mode frequencies. A specific example of changes observed in a DIII-D deuterium beam distribution in the presence of low amplitude experimentally validated Toroidal Alfven (TAE) eigenmodes and Reversed Shear Alfven (RSAE) eigenmodes is examined in detail. Comparison with experimental data shows that multiple low amplitude modes can account for significant modification of high energy beam particle distributions. It is found that there is a stochastic threshold for beam profile modification, and that the experimental amplitudes are only slightly above this threshold.

  5. Forecasting Turbulent Modes with Nonparametric Diffusion Models

    E-Print Network [OSTI]

    Tyrus Berry; John Harlim

    2015-01-27

    This paper presents a nonparametric diffusion modeling approach for forecasting partially observed noisy turbulent modes. The proposed forecast model uses a basis of smooth functions (constructed with the diffusion maps algorithm) to represent probability densities, so that the forecast model becomes a linear map in this basis. We estimate this linear map by exploiting a previously established rigorous connection between the discrete time shift map and the semi-group solution associated to the backward Kolmogorov equation. In order to smooth the noisy data, we apply diffusion maps to a delay embedding of the noisy data, which also helps to account for the interactions between the observed and unobserved modes. We show that this delay embedding biases the geometry of the data in a way which extracts the most predictable component of the dynamics. The resulting model approximates the semigroup solutions of the generator of the underlying dynamics in the limit of large data and in the observation noise limit. We will show numerical examples on a wide-range of well-studied turbulent modes, including the Fourier modes of the energy conserving Truncated Burgers-Hopf (TBH) model, the Lorenz-96 model in weakly chaotic to fully turbulent regimes, and the barotropic modes of a quasi-geostrophic model with baroclinic instabilities. In these examples, forecasting skills of the nonparametric diffusion model are compared to a wide-range of stochastic parametric modeling approaches, which account for the nonlinear interactions between the observed and unobserved modes with white and colored noises.

  6. Edge-localized-modes in tokamaks

    SciTech Connect (OSTI)

    Leonard, A. W.

    2014-09-15

    Edge-localized-modes (ELMs) are a ubiquitous feature of H-mode in tokamaks. When gradients in the H-mode transport barrier grow to exceed the MHD stability limit the ELM instability grows explosively, rapidly transporting energy and particles onto open field lines and material surfaces. Though ELMs provide additional particle and impurity transport through the H-mode transport barrier, enabling steady operation, the resulting heat flux transients to plasma facing surfaces project to large amplitude in future low collisionality burning plasma tokamaks. Measurements of the ELM heat flux deposition onto material surfaces in the divertor and main chamber indicate significant broadening compared to inter-ELM heat flux, with a timescale for energy deposition that is consistent with sonic ion flow and numerical simulation. Comprehensive ELM simulation is highlighting the important physics processes of ELM transport including parallel transport due to magnetic reconnection and turbulence resulting from collapse of the H-mode transport barrier. Encouraging prospects for ELM control and/or suppression in future tokamaks include intrinsic modes of ELM free operation, ELM triggering with frequent small pellet injection and the application of 3D magnetic fields.

  7. Lyapunov Modes for a Nonequilibrium System with a Heat Flux

    E-Print Network [OSTI]

    Tooru Taniguchi; Gary P. Morriss

    2006-11-23

    We present the first numerical observation of Lyapunov modes (mode structure of Lyapunov vectors) in a system maintained in a nonequilibrium steady state. The modes show some similarities and some differences when compared with the results for equilibrium systems. The breaking of energy conservation removes a zero exponent and introduces a new mode. The transverse modes are only weakly altered but there are systematic changes to the longitudinal and momentum dependent modes.

  8. SUPPLEMENTAL EXPORT COMPLIANCE PROCEDURES FOR TRAVEL WITH MOBILE DEVICES & RESEARCH EQUIPMENT To ensure that SAO-affiliated persons, who work on export-controlled projects and travel with their

    E-Print Network [OSTI]

    SUPPLEMENTAL EXPORT COMPLIANCE PROCEDURES FOR TRAVEL WITH MOBILE DEVICES & RESEARCH EQUIPMENT I. Purpose To ensure that SAO-affiliated persons, who work on export-controlled projects and travel with their laptops and mobile devices, take additional export compliance security precautions in advance and bring

  9. Mode Initialization for On-line Estimation of Power System Electromechanical Modes

    SciTech Connect (OSTI)

    Zhou, Ning; Trudnowski, Daniel; Pierre, John W.

    2009-03-18

    Measurement-based mode estimation methods are utilized to estimate electromechanical modes of a power system using phasor measurement units (PMU) data. These methods need to extract a certain amount of information before they can give useable mode estimation. Traditionally, the information is gathered solely from measurement data. Priori mode information from other resources (e.g. model eigenvalue analysis, engineering knowledge) are not fully utilized. For real time application, this means that mode estimation takes time to converge. By adding a mode regularization term in the objective function, this paper proposes a mode initialization method to include priori mode information in a regularized robust recursive least squares (R3LS) algorithm for on-line mode estimation. The proposed method is tested using a simple model, a 17 machine model and is shown to be able to shorten the convergence period of the R3LS algorithm. The proposed method is also applied on the measurement data recorded right before a major power outage in the western North American Grid on August 10th 1996 to show its potential applica-tion in detecting an approaching small signal stability problem.

  10. Sequestering Uranium from Seawater: Binding Strength and Modes...

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

    Sequestering Uranium from Seawater: Binding Strength and Modes of Uranyl Complexes with Glutarimidedioxime Sequestering Uranium from Seawater: Binding Strength and Modes of Uranyl...

  11. Fact #602: December 21, 2009 Freight Statistics by Mode, 2007...

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

    2: December 21, 2009 Freight Statistics by Mode, 2007 Commodity Flow Survey Fact 602: December 21, 2009 Freight Statistics by Mode, 2007 Commodity Flow Survey Results from the...

  12. Mixed-mode diesel HCCI with External Mixture Formation: Preliminary...

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

    Mixed-mode diesel HCCI with External Mixture Formation: Preliminary Results Mixed-mode diesel HCCI with External Mixture Formation: Preliminary Results 2003 DEER Conference...

  13. Variable Valve Actuation for Advanced Mode Diesel Combustion...

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

    Valve Actuation for Advanced Mode Diesel Combustion Variable Valve Actuation for Advanced Mode Diesel Combustion Presentation from the U.S. DOE Office of Vehicle Technologies...

  14. Unregulated Emissions from High-Efficiency Clean Combustion Modes...

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

    Unregulated Emissions from High-Efficiency Clean Combustion Modes - ORNL-FEERC Unregulated Emissions from High-Efficiency Clean Combustion Modes - ORNL-FEERC Poster presentation at...

  15. 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 Prev Next Title: Unbalanced edge modes and topological phase transition in gated trilayer...

  16. Perturbations of Weakly Resonant Power System Electromechanical Modes

    E-Print Network [OSTI]

    1 Perturbations of Weakly Resonant Power System Electromechanical Modes Ian Dobson, Senior Member. The possible perturbations are illustrated with interactions between electromechanical modes in a 4 bus power

  17. Modeling Combustion Control for High Power Diesel Mode Switching...

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

    Combustion Control for High Power Diesel Mode Switching Modeling Combustion Control for High Power Diesel Mode Switching Poster presentation given at the 16th Directions in...

  18. Growth Mode and Substrate Symmetry Dependent Strain in Epitaxial...

    Office of Scientific and Technical Information (OSTI)

    Growth Mode and Substrate Symmetry Dependent Strain in Epitaxial Graphene. Citation Details In-Document Search Title: Growth Mode and Substrate Symmetry Dependent Strain in...

  19. Travel and Expense System _ PeopleSoft 8.8 Prepaid Expenses 01/14 Page 1

    E-Print Network [OSTI]

    Barrash, Warren

    Travel and Expense System _ PeopleSoft 8.8 Prepaid Expenses 01/14 Page 1 that include prepaid expenses. There is a table of Prepaid Expense types at the end of this document for your reference. Create a Travel Authorization (TA) with Prepaid Expenses To properly record prepaid expenses, you

  20. Examining Decision-making Surrounding the Use of Managed Lanes by Katy Freeway Travelers: A Prospect Theory Approach 

    E-Print Network [OSTI]

    Huang, Chao

    2014-01-14

    random, were tested in this survey. Estimates from the EUT and PT approaches, as well as from previous studies on Katy Freeway travelers, are compared. The results of this study indicate that Katy Freeway travelers are more risk averse when in a situation...

  1. Earthquake Damage Detection in the Imperial County Services Building III: Analysis of Wave Travel Times via Impulse Response Functions

    E-Print Network [OSTI]

    Southern California, University of

    1 Earthquake Damage Detection in the Imperial County Services Building III: Analysis of Wave Travel characteristics of the structure, and are not sensitive to local damage. Wave travel times between selected changes in such characteristics of response are potentially more sensitive to local damage. In this paper

  2. Survey Title: Traveler Response to Fuel Price Changes University of Texas at Austin Internal Review Board #: 2005-11-0010

    E-Print Network [OSTI]

    Kockelman, Kara M.

    will be an important step in understanding how travelers may respond to future changes in gasoline prices of 2005 in which you spent the most on gasoline (or observed prices to be the highest.) Summer of 2005 canSurvey Title: Traveler Response to Fuel Price Changes University of Texas at Austin Internal Review

  3. Royal Veterinary College Guidance on employee attendance at work during periods of major travel disruption or severe weather conditions

    E-Print Network [OSTI]

    Daley, Monica A.

    disruption or severe weather conditions GUIDANCE ON EMPLOYEE ATTENDANCE AT WORK DURING PERIODS OF MAJOR TRAVEL DISRUPTION OR SEVERE WEATHER CONDITIONS 1.0 INTRODUCTION AND SCOPE 1.1 The College's expectation work and returning home during periods of severe weather or when there are major travel disruptions. 1

  4. Estimation and prediction of travel time from loop detector data for intelligent transportation systems applications 

    E-Print Network [OSTI]

    Vanajakshi, Lelitha Devi

    2005-11-01

    ., or from indirect methods such as loop detectors. Because of their wide spread deployment, travel time estimation from loop detector data is one of the most widely used methods. However, the major criticism about loop detector data is the high probability...

  5. IMPORTANT---TRAVEL TO AND FROM EBOLA-IMPACTED AREAS January 2015

    E-Print Network [OSTI]

    Oklahoma, University of

    --Guinea, Liberia, and Sierra Leone. There have been no cases of Ebola in Oklahoma, but OU must take the appropriate, and staff travel for University purposes to Guinea, Liberia and Sierra Leone. 1. OU students, faculty, Liberia, and Sierra Leone to contact OU Health Services to arrange a risk assessment by telephone

  6. Benchmarking Algorithms for Dynamic Travelling Salesman Problems Lishan Kang1,2

    E-Print Network [OSTI]

    McKay, Robert Ian

    Travelling Salesman Problem, adapted from the CHN-144 benchmark of 144 Chinese cities for the static computing, the confluence of Web services, peer- to-peer systems and grid computing provide the foundation mixture, smartness, macro and micro-mobility, ultra-scalability, interoperability and invisibility have

  7. Search How do I find it? Home News Travel Money Sports Life Tech Weather

    E-Print Network [OSTI]

    Rogers, John A.

    such capabilities in flexible plastic-like materials and high-tech composites akin to the stuff now used to makeSearch How do I find it? Home News Travel Money Sports Life Tech Weather Tech Shopping Bu Illinois on a project to develop technology for the living room of the future. Inside Tech Page 1 of 3USATODAY

  8. Section: Travel Revised Date: 06/13/2011 Procedure: 5.5.4

    E-Print Network [OSTI]

    Saldin, Dilano

    in employee lounges, assigned offices or other work areas are not allowable. Employee consumables, appliances be processed via Risk Management. Trip insurance is not normally reimbursable. Exceptions may occasionally be granted for some foreign travel if it is cost/risk justified and approved in advance. #12;

  9. Heurisic approaches for no-depot k-traveling salesmen problem with a minmax objective 

    E-Print Network [OSTI]

    Na, Byungsoo

    2007-09-17

    This thesis deals with the no-depot minmax Multiple Traveling Salesmen Problem (MTSP), which can be formulated as follows. Given a set of n cities and k salesmen,find k disjoint tours (one for each salesmen) such that each ...

  10. THE TRAVEL AND ENVIRONMENTAL IMPLICATIONS OF SHARED AUTONOMOUS VEHICLES, USING AGENT-BASED MODEL SCENARIOS

    E-Print Network [OSTI]

    Kockelman, Kara M.

    the rental) like Car2Go and ZipCar have quickly expanded, with the number of U.S. users doubling every one traveler wait times. Next, the model is run over one-hundred days, with driverless vehicles ferrying. As of September 2013, Google had logged over 500,000 miles driven on public roadways using cars equipped with self

  11. TRAVELING-WAVE MODULATOR USING A GELATIN-BASED EO POLYMER WAVEGUIDE

    E-Print Network [OSTI]

    Chen, Ray

    TRAVELING-WAVE MODULATOR USING A GELATIN-BASED EO POLYMER WAVEGUIDE R. Shih, R. Chen, and Z. Z. Ho intensity modulator using a gelatin-based EO polymer waveguide has been built and characterized. This EO modulator is constructed from a nitrophenol/gelatin guest/host poled polymer system. V and "33 of 25 V

  12. Driving Directions to the UNCW Main Campus If traveling to Wilmington via I-40

    E-Print Network [OSTI]

    Olszewski Jr., Edward A.

    Driving Directions to the UNCW Main Campus If traveling to Wilmington via I-40 I-40 becomes NC 132 left into the Parking Deck. You will need to park on the main level in one of the designated visitor of Student Success (Room 1002) is in the lobby near the main building entrance. 2) From Reynolds Drive, turn

  13. Updated 1/2013 http://ilint.illinois.edu/ 1 Professional Travel in Mexico

    E-Print Network [OSTI]

    Chen, Deming

    Updated 1/2013 http://ilint.illinois.edu/ 1 Professional Travel in Mexico Estados Unidos Mexicanos Culture Note The current president of Mexico is Enrique Peña Nieto. Mexico City is the county's capital million U.S. citizens live in Mexico. Mexico is the third largest U.S. trading partner behind Canada

  14. In-State Contract Vehicle Rental Rates (State Motor Pool Rental Contract for Business Travel)

    E-Print Network [OSTI]

    Harms, Kyle E.

    In-State Contract Vehicle Rental Rates (State Motor Pool Rental Contract for Business Travel) FY 2013 - 2014 July 1, 2013 - June 30, 2014 Enterprise must be used for all in-state vehicle rentals. Corporate Discount # Website Reservations Phone # Base Rental Charges Rental Location Surcharges Vehicle

  15. In-State Contract Vehicle Rental Rates (State Motor Pool Rental Contract for Business Travel)

    E-Print Network [OSTI]

    Harms, Kyle E.

    In-State Contract Vehicle Rental Rates (State Motor Pool Rental Contract for Business Travel) FY 2011 - 2012 July 1, 2011 - June 30, 2012 Enterprise must be used for all in-state vehicle rentals. Corporate Discount # Website Reservations Phone # Base Rental Charges Rental Location Surcharges Vehicle

  16. In-State Contract Vehicle Rental Rates (State Motor Pool Rental Contract for Business Travel)

    E-Print Network [OSTI]

    Harms, Kyle E.

    In-State Contract Vehicle Rental Rates (State Motor Pool Rental Contract for Business Travel) FY 2010 - 2011 July 1, 2010 - June 30, 2011 Enterprise should be used for all in-state vehicle rentals. General Vehicle Rental Notes: Corporate Discount # · A valid driver's license and a major credit card (La

  17. In-State Contract Vehicle Rental Rates (State Motor Pool Rental Contract for Business Travel)

    E-Print Network [OSTI]

    Harms, Kyle E.

    In-State Contract Vehicle Rental Rates (State Motor Pool Rental Contract for Business Travel) FY 2012 - 2013 July 1, 2012 - June 30, 2013 Enterprise must be used for all in-state vehicle rentals. Corporate Discount # Website Reservations Phone # Base Rental Charges Rental Location Surcharges Vehicle

  18. Traveling Waves Solutions for Bistable Differential-Difference Equations with Periodic Diffusion

    E-Print Network [OSTI]

    Elmer, Christopher E.; Van Vleck, Erik

    2001-10-05

    on the underlying lattice as well as on time. For the case of spatially periodic diffusion we obtain analytic solutions for the traveling wave problem using a piecewise linear nonlinearity. The formula for the wave forms is implicitly defined in the general periodic...

  19. STABILITY OF TRAVELING WAVES FOR DEGENERATE SYSTEMS OF REACTION DIFFUSION EQUATIONS

    E-Print Network [OSTI]

    Latushkin, Yuri

    -diffusion system at a traveling pulse or front, we prove a theorem that allows one to derive information about in neurons; certain combustion models [9]; population models in which some species diffuse and others do Classification. 47D06, 35K57, 35B40. Key words and phrases. front, pulse, spectrally stable, linearly stable, C0

  20. State Motor Pool Rental Contract for Business Travel Effective January 1, 2010

    E-Print Network [OSTI]

    Harms, Kyle E.

    State Motor Pool Rental Contract for Business Travel Effective January 1, 2010 Base Rental Charges Vehicle Class State Motor Pool Rental Contract Daily Rate* State Motor Pool Rental Contract Weekly Rate* State Motor Pool Rental Contract Monthly Rate* Compact 32 176 640 Mid-size/Intermediate 34 187 680

  1. CUNYfirst -Travel & Expense Module Charging Expenses to a Different Business Unit

    E-Print Network [OSTI]

    Artemov, Sergei N.

    CUNYfirst - Travel & Expense Module Charging Expenses to a Different Business Unit There are circumstances where an employee's reimbursable business expenses should be charged to a different business unit the procedures from the VMU to add an employee to the CUNYfirst vendor file 2. The "paying business unit" must

  2. scholarship enabled me to travel to an organic vegetable farm in Minnesota during

    E-Print Network [OSTI]

    Firestone, Jeremy

    scholarship enabled me to travel to an organic vegetable farm in Minnesota during the summer today. Thanks to the Academic Year Scholars program I was able to return to the Food Bank this semester of Guatemalan agriculture, I look forward to beginning a job with the Food Bank as a program designer

  3. Quick Search SFGATE HOME BUSINESS SPORTS ENTERTAINMENT TRAVEL JOBS REAL EST

    E-Print Network [OSTI]

    Weiss, Benjamin P.

    electrical PG & E bill Bay Solar Power Design, Inc. Bay Area 3-Areas for $99 + get hallway clean free CallQuick Search SFGATE HOME BUSINESS SPORTS ENTERTAINMENT TRAVEL JOBS REAL EST Meteorites provide of Mars. Printable Version Email This Article $250 Off Any Complete Solar System! Reduce or eliminate your

  4. AN INTEGRATED APPROACH TO SOLVING THE REAL-WORLD MULTIPLE TRAVELING ROBOT PROBLEM

    E-Print Network [OSTI]

    Talay, Sanem Sarýel

    dynamics. In this paper, we analyze the MTRP from real-world perspectives. In our solution, dynamic taskAN INTEGRATED APPROACH TO SOLVING THE REAL-WORLD MULTIPLE TRAVELING ROBOT PROBLEM Sanem Sariel, TURKEY + Georgia Institute of Technology, College of Computing, Atlanta, GA, USA, 30332 Key words: Multi

  5. Travel Characteristics of Marine Anglers Using Oil and Gas Platforms in the Central Gulf of Mexico

    E-Print Network [OSTI]

    Travel Characteristics of Marine Anglers Using Oil and Gas Platforms in the Central Gulf of Mexico patterns of avid marine anglers using the oil and gas structures off the Louisiana coast. Although and their fishing methods. Study Area In 1985, the National Research Council identified more than 3,100 oil and gas

  6. SPACE DAILY SPACE WAR TERRA DAILY MARS DAILY SPACE MART SPACE TRAVEL World's Smallest Universal Material

    E-Print Network [OSTI]

    Espinosa, Horacio D.

    SPACE DAILY SPACE WAR TERRA DAILY MARS DAILY SPACE MART SPACE TRAVEL NANO TECH World's Smallest, professor of mechanical Get Our Free Newsletters Via Email Space - War - Earth - Energy - China your email yes Search All Of Our Sites In One Search SpaceDaily - SpaceWar - TerraDaily Search Horacio D

  7. Dual Use of Traveling and Standing Lamb Waves for Structural Health Monitoring

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Dual Use of Traveling and Standing Lamb Waves for Structural Health Monitoring Victor Giurgiutiu@sc.edu ABSTRACT Structural health monitoring (SHM) is an emerging technology with great potential in structural to structures. The paper presents results on the dual use of PWAS for structural health monitoring through: (a

  8. Exploiting Digital Technologies to Promote Sustainable Travel Behaviour in Rural Areas

    E-Print Network [OSTI]

    Edwards, Pete

    Rural Passenger1 (IRP) project aims to address this issue by creating an information ecosystem of the information ecosystem and orienting it towards the user needs, in order to encourage sustainable rural travel, within an information ecosystem. Overall, the aim of the IRP project is to utilise this information

  9. Travelling wave solutions for a quasilinear model of Field Dislocation Mechanics

    E-Print Network [OSTI]

    Scheichl, Robert

    Mechanics to a scalar problem in one spatial dimension and investigate the existence of static and slowTravelling wave solutions for a quasilinear model of Field Dislocation Mechanics Amit Acharya in the static case is not proper and it is shown that no comparison principle holds. The findings indicate

  10. Home News Business Sports Travel Entertainment Homes Jobs Cars Shopping Top headlines

    E-Print Network [OSTI]

    Paller, Ken

    Home News Business Sports Travel Entertainment Homes Jobs Cars Shopping 31° Latest for Top Nursing Home Administrator read more & apply Search Chicago jobs All Chicago jobs Post resume Post a job applications," said Ralph Nuzzo, a chemistry professor who worked with Rogers to co-author a description

  11. Building Evidence for Active Travel: Counting and Modeling Non-motorized Traffic

    E-Print Network [OSTI]

    Bertini, Robert L.

    Building Evidence for Active Travel: Counting and Modeling Non-motorized Traffic #12;Scope of Talk & maintenance · Test hypotheses and build theory #12;Multi-use Trails in Indianapolis #12;Min Max Mean Week Days B MN* Active Infrared MM MN* Passive infrared P, MM MN MM MN Pressure Pads P P, B? Pneumatic tubes B

  12. Updated 01/2013 http://ilint.illinois.edu/ 1 Professional Travel in South Africa

    E-Print Network [OSTI]

    Chen, Deming

    Updated 01/2013 http://ilint.illinois.edu/ 1 Professional Travel in South Africa The Rainbow Nation South Africa is one of the most multicultural countries in the world. In urban areas many different ethnic groups make up the population. In addition to the indigenous black peoples of South Africa

  13. Adaptability of a Discrete PSO Algorithm applied to the Traveling Salesman Problem with Fuzzy Data

    E-Print Network [OSTI]

    Ludwig, Simone

    Adaptability of a Discrete PSO Algorithm applied to the Traveling Salesman Problem with Fuzzy Data-known optimization method, Particle Swarm Optimization (PSO), when solving a fuzzy problem. The discrete PSO in order to study the impact of uncertain information in the quality of the results provided by PSO

  14. Economic Impacts of Relaxing Travel and Financial Restrictions on U.S. Exports to Cuba

    E-Print Network [OSTI]

    Economic Impacts of Relaxing Travel and Financial Restrictions on U.S. Exports to Cuba Flynn Adcock Reform and Export Enhancement Act of 2000 allows for the exportation of U.S. agricultural products and medicines to Cuba. Since passage of the TSREEA, U.S. agricultural and food exports to Cuba have expanded

  15. Greening North Carolina Travel and Tourism Tips for Sustainable Practices in Tourism

    E-Print Network [OSTI]

    Greening North Carolina Travel and Tourism Tips for Sustainable Practices in Tourism (As published Resources Many tourism businesses understand that `going green' is important. It can help reduce operating costs, a growing number of consumers are asking for green products and services, and there is growing

  16. RESEARCH PAPER Simulation-based analysis of flow due to traveling-plane-wave

    E-Print Network [OSTI]

    Yanikoglu, Berrin

    : 28 March 2007 Ó Springer-Verlag 2007 Abstract One of the propulsion mechanisms of micro- organisms flows with mechanical micropumps remains somewhat a challenge. Propulsion mechanisms of microorganisms be placed in a channel and actuated for pumping of the fluid by means of introducing a series of traveling

  17. Emergency Contacts and Resources For Students Traveling on a CGIS Program

    E-Print Network [OSTI]

    Eustice, Ryan

    Emergency Contacts and Resources For Students Traveling on a CGIS Program University of Michigan Police Dept. (UMPD): 734-763-1131 (24/7 ­ will accept int'l collect calls) HTH Emergency Assistance 800-5pm) What IS an Emergency? An emergency situation is one that has impacted, or is likely to impact

  18. Joint two-dimensional DC resistivity and seismic travel time inversion with cross-gradients constraints

    E-Print Network [OSTI]

    Meju, Max

    Joint two-dimensional DC resistivity and seismic travel time inversion with cross to evaluate the structural features common to both methods. The cross-gradients function is incorporated method. The resultant iterative two-dimensional (2-D) joint inversion scheme is successfully applied

  19. ForPeerReview Viability of Travel-time Sensitivity Testing for Estimating

    E-Print Network [OSTI]

    Ward, Karen

    of Tomographic Velocity Models: A Case Study Journal: Geophysics Manuscript ID: GEO-2008-0386 Manuscript Type Inversion, Seismic Velocity/Statics GEOPHYSICS #12;ForPeerReview Averill et al., Travel Time Sensitivity Models: A Case Study Matthew G. Averill* , Kate C. Miller (corresponding author), Vladik Krenovich

  20. http://baltoferretclub.com/travel.html http://baltoferretclub.com/evacuation.html

    E-Print Network [OSTI]

    Selmic, Sandra

    Sources: http://baltoferretclub.com/travel.html http://baltoferretclub.com/evacuation.html http://theepiccenter.com/tow08036.html http://peteducation.com/article.cfm?c=11+1296&aid=498 http://destinyink.com/spyral/animals/ferret/ferret_nutrition.html