National Library of Energy BETA

Sample records for vfr visual flight

  1. SENSORIMOTOR CONVERGENCE IN VISUAL NAVIGATION AND FLIGHT CONTROL

    E-Print Network [OSTI]

    Murray, Richard M.

    in the processing of retinal image pattern movement (optic flow) by the visuomotor systems of insects, one of na of optic flow are extracted by retinal motion sensitivity kernels. ditional approach, LPTC-based processing processing and convergence of visual sensory information to flight motor commands via spatial wide

  2. Validation of an in-flight flow visualization scheme to quantitatively measure vortical flow phenomena 

    E-Print Network [OSTI]

    Dorsett, Kenneth Merle

    1993-01-01

    A flow visualization measurement scheme was validated in flight. Strake vortex trajectories and axial core velocities were determined using pulsed smoke and high speed video. A gothic strake, operated at an angle of attack of 220 and a Reynolds...

  3. MODELING THE EFFECTS OF HUD VISUAL PROPERTIES, PILOT EXPERIENCE AND FLIGHT SCENARIO ON A MULTI-DIMENSIONAL MEASURE OF CLUTTER

    E-Print Network [OSTI]

    Kaber, David B.

    MODELING THE EFFECTS OF HUD VISUAL PROPERTIES, PILOT EXPERIENCE AND FLIGHT SCENARIO ON A MULTI experience; (b) HUD configuration; (c) flight segment; and (d) workload on perceptions of display clutter and cognitive load, and flight task performance. 3. Model HUD clutter scores in terms of display visual

  4. Orion Flight Test Exploration Flight Test-1

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Orion Flight Test Exploration Flight Test-1 PRESS KIT/December 2014 www.nasa.gov NP-2014-11-020-JSC National Aeronautics and Space Administration #12;#12;Orion Flight Test December 2014 Contents Section Page ........................................................................................... 28 i #12;Orion Flight Test ii December 2014 #12;Orion Flight Test December 2014 Flight Overview

  5. Management and planning of UAV flight pattern

    E-Print Network [OSTI]

    Management and planning of UAV flight pattern Pre-conference Tutorial on Unmanned Aerial Vehicle in Geomatics ETH Zurich, 13/09/11 Magali Barbier UAV-g 2011 ­ Pre-conference Tutorial, Zurich, 13/09/112 Outline · Context: UAV, mission, autonomy, architecture · Experimental means · Application 1: visual

  6. Using Time-of-Flight Measurements for Privacy-Preserving Tracking in a Smart Room

    E-Print Network [OSTI]

    Radke, Rich

    for human assistance, or even detect anomalies in occupant behavior (e.g., alerting staff if an occupant-of-flight images are severely downsampled to preserve the privacy of the occupants and simulate future applications-of-flight, smart room, pose recognition, visual tracking, privacy preservation, occupancy detection I. INTRODUCTION

  7. Visual Breakout

    Broader source: Energy.gov [DOE]

    Visual Breakout of the Cummulative Barrels of Oil Recovered by the Discoverer Enterprise, Q4000 and HP1. Updated through 12:00 AM on July 16, 2010.

  8. Statistically Quantitative Volume Visualization

    E-Print Network [OSTI]

    Kniss, Joe Michael

    in the visualization pipeline involves some level of uncertainty, this valuable quantity should accessible as part for volume visualization ­ Risk transfer functions ­ Visual uncertainty ­ Interactive decision manipulation

  9. Dynamic Multiscale Visualization of Flight Data Tijmen Klein1

    E-Print Network [OSTI]

    Telea, Alexandru C.

    ), epi- demics propagation, and crisis situation analysis. Within this context, we focus on the analysis of air- plane movement data sets. Such data sets consist of sev- eral airplane trajectories, or trails

  10. Visualizing data 

    E-Print Network [OSTI]

    Ilik, Violeta

    2013-01-01

    We used Viewshare to visualize three different sets of data. Frist one is a collection of budget reports published by the Texas A&M System. The file was crosswalked from MARCXML to MODS and uploaded to Viewshare as an XML MODS file. The second...

  11. Visualizing information

    E-Print Network [OSTI]

    Ernst, Damien

    GEURTS and Louis WEHENKEL University of Li` ege ­ Belgium I. Data mining in power systems II. Dynamic+ + LESCOPE'98 Halifax, June 1998 Visualizing Dynamic Power System Scenarios for Data Mining Pierre. Wehenkel ­ June 1998 2 + + I. Data mining in power systems Data mining ? ffl Aims at extracting useful (and

  12. Flight Path 12

    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 HABFES OctoberEvanServices »First ObservationFast This flight path is

  13. Flight Path 12

    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 HABFES OctoberEvanServices »First ObservationFast This flight path

  14. Flight Path 12

    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 HABFES OctoberEvanServices »First ObservationFast This flight

  15. Flight Path 5 - About

    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 HABFES OctoberEvanServices »First ObservationFast(ER1) Target 1 Flight

  16. Flight Path 5

    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 ofDid you not find whatGasEnergyfeature photoTheory05 Target 1 Flight Path 05

  17. Flight Path Target 2

    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 ofDid you not find whatGasEnergyfeature photoTheory05 Target 1 Flight Path90L2

  18. Flight Paths at WNR

    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 ofDid you not find whatGasEnergyfeature photoTheory05 Target 1 FlightNeutron

  19. An analysis of enhanced traffic management system data using three dimensional MATLAB visualizations

    E-Print Network [OSTI]

    Tindell, Evan

    2007-01-01

    In this thesis I use MATLAB visualizations to analyze right patterns over major airports. I will analyze capacity constraints on some of the nation's most congested airports, and define flight paths that converge on them ...

  20. A nonintrusive method of quantifying flow visualization data in vortex flow fields 

    E-Print Network [OSTI]

    Sei, Vincent Joseph

    1994-01-01

    drawbacks to employing video imaging was the introduction of false motion due to camera movement in flight. A relative motion approach using fixed targets along with the flow visualization scheme was utilized to remove unwanted motion. The relative motion...

  1. VISUAL-SOLAR

    Energy Science and Technology Software Center (OSTI)

    003661IBMPC00 Visual-SOLAR: Modeling and Visualization of Solar Radiation Potential on Individual Building Rooftops   

  2. Visualizing Teleportation

    E-Print Network [OSTI]

    Scott M. Cohen

    2008-05-13

    A novel way of picturing the processing of quantum information is described, allowing a direct visualization of teleportation of quantum states and providing a simple and intuitive understanding of this fascinating phenomenon. The discussion is aimed at providing physicists a method of explaining teleportation to non-scientists. The basic ideas of quantum physics are first explained in lay terms, after which these ideas are used with a graphical description, out of which teleportation arises naturally.

  3. JACEE long duration balloon flights

    SciTech Connect (OSTI)

    Burnett, T.; Iwai, J.; Lord, J.J.; Strausz, S.; Wilkes, R.J. ); Dake, S.; Oda, H. ); Miyamura, O. ); Fuki, M. ); Jones, W.V. ); Gregory, J.; Hayashi, T.; Takahashi, U. ); Tominaga,

    1989-01-01

    JACEE balloon-borne emulsion chamber detectors are used to observe the spectra and interactions of cosmic ray protons and nuclei in the energy range 1-100A TeV. Experience with long duration mid-latitude balloon flights and characteristics of the detector system that make it ideal for planned Antarctic balloon flights are discussed. 5 refs., 2 figs.

  4. Autonomous helicopter flight via Reinforcement Learning

    E-Print Network [OSTI]

    Sastry, S. Shankar

    Autonomous helicopter flight via Reinforcement Learning Andrew Y. Ng Stanford University Stanford 94720 Abstract Autonomous helicopter flight represents a challenging control problem, with complex to autonomous helicopter flight. We first fit a stochastic, nonlinear model of the helicopter dynamics. We

  5. Autonomous helicopter flight via reinforcement learning

    E-Print Network [OSTI]

    Jordan, Michael I.

    Autonomous helicopter flight via reinforcement learning Andrew Y. Ng Stanford University Stanford 94720 Abstract Autonomous helicopter flight represents a challenging control problem, with complex to autonomous helicopter flight. We first fit a stochastic, nonlinear model of the helicopter dynamics. We

  6. A flight of behavior analysis

    E-Print Network [OSTI]

    Baer, Donald M.

    1981-01-01

    Comments on J. Michael's (1980) discussion on the flight from behavior analysis by looking positively upon the following points: The applied people are largely new personnel who are not quick to apply new basic findings and who do not relate...

  7. Bio-Inspired Visuomotor Convergence in Navigation and Flight Control Systems

    E-Print Network [OSTI]

    Murray, Richard M.

    , extraction of global retinal motion cues through computationally efficient wide-field integration process. A fundamental principle contributing to this unparalleled behavior is rapid processing and convergence of visual sensory information to flight motor commands via spatial wide-field integration, accomplished by retinal

  8. Visual Perception Light and the Visual Apparatus

    E-Print Network [OSTI]

    Mignotte, Max

    #12;293 Vision and Visual Perception Light and the Visual Apparatus The Visible Spectrum The Eye. was in his car when it was hit by a small truck. In the emergency room, he was told that he had a concussion are providing a valuable model for understanding complex neural processing in general. Light and the Visual

  9. NASA Marshall Space Flight Center Improves Cooling System Performance...

    Office of Environmental Management (EM)

    Marshall Space Flight Center Improves Cooling System Performance NASA Marshall Space Flight Center Improves Cooling System Performance NASA Marshall Space Flight Center Improves...

  10. Time of flight mass spectrometer

    DOE Patents [OSTI]

    Ulbricht, Jr., William H. (Arvada, CO)

    1984-01-01

    A time-of-flight mass spectrometer is described in which ions are desorbed from a sample by nuclear fission fragments, such that desorption occurs at the surface of the sample impinged upon by the fission fragments. This configuration allows for the sample to be of any thickness, and eliminates the need for complicated sample preparation.

  11. Laminar Flow Control Flight Experiment Design 

    E-Print Network [OSTI]

    Tucker, Aaron 1975-

    2012-11-29

    Demonstration of spanwise-periodic discrete roughness element laminar flow control (DRE LFC) technology at operationally relevant flight regimes requires extremely stable flow conditions in flight. A balance must be struck ...

  12. AE 419: Aircraft Flight Mechanics Spring 2015

    E-Print Network [OSTI]

    Lee, Tonghun

    AE 419: Aircraft Flight Mechanics Spring 2015 Course Information (Tentative) Instructor: Prof. M. S, cruise, level turn, and energy methods; longitudinal, directional, and lateral static stability graduate hours Textbook: Thomas Yechout, et al. Introduction to Aircraft Flight Mechanics: Performance

  13. 4 YEAR FLIGHT PLAN: BFA in Painting

    E-Print Network [OSTI]

    Fernandez, Eduardo

    4 YEAR FLIGHT PLAN: BFA in Painting FAU is committed to your success as a student. One way we Name: Z: Program: Date: Advisor: Contact: Flight Plan: BFA in Painting NOTE: Some students may

  14. Electromagnetic Formation Flight of Satellite Arrays

    E-Print Network [OSTI]

    Electromagnetic Formation Flight of Satellite Arrays Daniel W. Kwon and David W. Miller February 2005 SSL # 2-05 #12;#12;Electromagnetic Formation Flight of Satellite Arrays By DANIEL W. KWON S;#12;Electromagnetic Formation Flight of Satellite Arrays by DANIEL W. KWON Submitted to the Department of Aeronautics

  15. Research Article Visual Recognition

    E-Print Network [OSTI]

    Grill-Spector, Kalanit

    ) or subordinate (e.g., Volkswagen Beetle) level. How- ever, this is apparently not true for visually atypical

  16. ESnet Visualization Widgets

    SciTech Connect (OSTI)

    Gopal Vaswani, Jon Dugan

    2012-07-01

    The ESnet Visualization widgets are various data visualization widgets for use in web browsers to aid in the visualization of computer networks. In particular the widgets are targetted at displaying timeseries and topology data. They were developed for use in the MyESnet portal but are general enough to be used other places. The widgets are built using the d3.js library.

  17. VISUAL ASSISTANCE TOOLS FOR INTERACTIVE VISUALIZATION OF REMOTE SENSING DATA

    E-Print Network [OSTI]

    Blanz, Volker

    VISUAL ASSISTANCE TOOLS FOR INTERACTIVE VISUALIZATION OF REMOTE SENSING DATA Martin Lambers to interactive visualization of remote sensing data. Index Terms-- Visualization 1. INTRODUCTION Interactive visualization of remote sensing data gives the user much control over the visualization result. In the ideal

  18. - FLIGHT -

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

    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 GasAdjustmentsShirleyEnergyTher i n c i p a l De p u t y A s s i s t a n t S e c r eEnergyHVACSecondAVIATION

  19. Flight Path 14 - About DANCE

    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 HABFES OctoberEvanServices »First ObservationFast This flight(DANCE)

  20. Flight Path 14 - About DANCE

    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 HABFES OctoberEvanServices »First ObservationFast This flight(DANCE)

  1. Flight Path 14 - About DANCE

    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 HABFES OctoberEvanServices »First ObservationFast This flight(DANCE)

  2. Flight Path 60R - GEANIE

    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 ofDid you not find whatGasEnergyfeature photoTheory05 Target 1 Flight Path

  3. Flight Path 90L - TPC

    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 ofDid you not find whatGasEnergyfeature photoTheory05 Target 1 Flight Path90L

  4. Visual Resource Report

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

    Assessment Visual Resource Report in Support of the I-5 Corridor Reinforcement Project Environmental Impact Statement Prepared for: Bonneville Power Administration P.O. Box 3621...

  5. Video-Visuals

    Broader source: Energy.gov [DOE]

    Multimedia resources at the United States Department of Energy help to message geothermal development visually through video, photographs, renderings of the subsurface, and resource maps. VIDEO links

  6. Airbus Toulouse Flight test data centre. Diagnosis and treatment of noisy vibration flight test data.

    E-Print Network [OSTI]

    Dobigeon, Nicolas

    Airbus Toulouse ­ Flight test data centre. Diagnosis and treatment of noisy vibration flight test data. The trainee will work within flight test vibration analysis team.The main missions and activities are the followings: - Use an automatic tool of vibration data quality defaults detection; evaluate this tool

  7. Flight Software Group The LASP Flight Software Group has a rich history of

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    development life-cycle. Software quality assurance engineers ensure compliance and perform audits. LASP usesFlight Software Group The LASP Flight Software Group has a rich history of developing flight software for planetary and earth-orbiting missions, beginning as early as the Galileo mission

  8. Seminar 12! The Future of Space Flight!

    E-Print Network [OSTI]

    Stengel, Robert F.

    ! Rationales and Approaches for Human Space Flight! ! Spacecraft Power & Thermal Control! Understanding SpaceSeminar 12! The Future of Space Flight! Spacecraft Power & Thermal Control! Robert Stengel! FRS 112, Sec 13.2, 13.3! 1! 2! #12;3! 4! #12;5! 6! #12;7! 8! #12;Spacecraft Power! 9! Typical Electrical Power

  9. 4 YEAR FLIGHT PLAN: BFA in Ceramics

    E-Print Network [OSTI]

    Fernandez, Eduardo

    4 YEAR FLIGHT PLAN: BFA in Ceramics FAU is committed to your success as a student. One way we Name: Z: Program: Date: Advisor: Contact: Flight Plan: BFA in Ceramics NOTE: Some students may from the college Student Advising Services (SAS). Students that are admitted to the BFA in Ceramics

  10. Free flight of the mosquito Aedes aegypti

    E-Print Network [OSTI]

    Iams, S M

    2012-01-01

    High speed video observations of free flying male Aedes aegypti mosquitoes, the dengue and yellow fever vector, along with custom measurement methods, enable measurement of wingbeat frequency, body position and body orientation of mosquitoes during flight. We find these mosquitoes flap their wings at approximately 850 Hz. We also generate body yaw, body pitch and wing deviation measurements with standard deviations of less than 1 degree and find that sideways velocity and acceleration are important components of mosquito motion. Rapid turns involving changes in flight direction often involve large sideways accelerations. These do not correspond to commensurate changes in body heading, and the insect's flight direction and body heading are decoupled during flight. These findings call in to question the role of yaw control in mosquito flight. In addition, using orientation data, we find that sideways accelerations are well explained by roll-based rotation of the lift vector. In contrast, the insect's body pitch...

  11. Biomechanics and evolution of flight in stick insects

    E-Print Network [OSTI]

    Zeng, Yu

    2013-01-01

    4 Biomechanics of flight reduction along ecologicalarray experiment . . . 3 The biomechanics of aerial righting35] R. Dudley. The biomechanics of insect flight: form,

  12. Visualization of electronic density

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

    Grosso, Bastien; Cooper, Valentino R.; Pine, Polina; Hashibon, Adham; Yaish, Yuval; Adler, Joan

    2015-04-22

    An atom’s volume depends on its electronic density. Although this density can only be evaluated exactly for hydrogen-like atoms, there are many excellent numerical algorithms and packages to calculate it for other materials. 3D visualization of charge density is challenging, especially when several molecular/atomic levels are intertwined in space. We explore several approaches to 3D charge density visualization, including the extension of an anaglyphic stereo visualization application based on the AViz package to larger structures such as nanotubes. We will describe motivations and potential applications of these tools for answering interesting questions about nanotube properties.

  13. Visualizing conceptual information 

    E-Print Network [OSTI]

    Brunner, Matthew Conrad

    1993-01-01

    Foos-Grabers book, DEATHING: An Alternative for the Final Moments of Life. The visualization is both aesthetic in its expression and clearly communicative of the original ideas. Included is a discussion which centers on techniques and aesthetic...

  14. Computational visual reality

    E-Print Network [OSTI]

    Hirsch, Matthew Waggener

    2014-01-01

    It is not so far-fetched to envision a future student working through a difficult physics problem by using their hands to manipulate a 3D visualization that floats above the desk. A doctor preparing for heart surgery will ...

  15. Matching Law Visualization Tool

    E-Print Network [OSTI]

    Reed, Derek D.

    2015-05-15

    , the matching law remains an elusive principle to students of behavior analysis lacking requisite training in quantitative analyses. This simulation tool is intended to visually describe how manipulations of the parameters of the quantitative models modulate...

  16. Visualizing historic buildings 

    E-Print Network [OSTI]

    Han, Kyu Yol

    1997-01-01

    and horizontal curved surfaces. Engineers and architects can also use animation software to visualize their products and architectural designs for presentations, or to simulate reality convincing in the animation of yet-to-be-constructed buildings. "Once... visualization tool. SoftImage's broad range of powerful and sophisticated animation tools allows the production of complex 3D spaces and animations of outstanding quality both quickly and easily. I intend to investigate selected objects with these two...

  17. THE WEATHER VISUALIZER, JAVATM , HABANEROTM

    E-Print Network [OSTI]

    Wilhelmson, Robert

    13.19 THE WEATHER VISUALIZER, JAVATM , HABANEROTM , AND THE FUTURE Joel Plutchak* , Robert B Urbana-Champaign has developed a web-based visualization tool known as The Weather Visualizer (DAS, 1997 and images.__ Since its debut in 1995, the goals of the various versions of the Weather Visualizer have

  18. Electromagnetic formation flight dipole solution planning

    E-Print Network [OSTI]

    Schweighart, Samuel A. (Samuel Adam), 1977-

    2005-01-01

    Electromagnetic Formation Flight (EMFF) describes the concept of using electromagnets (coupled with reaction wheels) to provide all of the necessary forces and torques needed to maintain a satellite's relative position and ...

  19. Micromechanical actuators for insect flight mechanics

    E-Print Network [OSTI]

    Zhou, Hui, M.S. Massachusetts Institute of Technology

    2008-01-01

    This project aims to develop MEMS actuators to aid in the study of insect flight mechanics. Specifically, we are developing actuators that can stimulate the antennae of the crepuscular hawk moth Manduca Sexta. The possible ...

  20. Autonomous inverted helicopter flight via reinforcement learning

    E-Print Network [OSTI]

    Thrun, Sebastian

    Autonomous inverted helicopter flight via reinforcement learning Andrew Y. Ng 1 , Adam Coates 1 Computer Science Department, Stanford University, Stanford, CA 94305 2 Whirled Air Helicopters, Menlo Park, CA 94025 Abstract. Helicopters have highly stochastic, nonlinear, dynamics, and autonomous helicopter

  1. Parameterized Maneuver Learning for Autonomous Helicopter Flight

    E-Print Network [OSTI]

    O'Brien, James F.

    Parameterized Maneuver Learning for Autonomous Helicopter Flight Jie Tang, Arjun Singh, Nimbus aerobatic maneuvers by our autonomous helicopter. I. INTRODUCTION Trajectory following is a fundamental probabilistic model that enabled them to extract an expert helicopter pilot's intended trajectory from multiple

  2. Autonomous inverted helicopter flight via reinforcement learning

    E-Print Network [OSTI]

    Thrun, Sebastian

    Autonomous inverted helicopter flight via reinforcement learning Andrew Y. Ng1 , Adam Coates1 Science Department, Stanford University, Stanford, CA 94305 2 Whirled Air Helicopters, Menlo Park, CA 94025 Abstract. Helicopters have highly stochastic, nonlinear, dynamics, and autonomous helicopter

  3. Flight at Low Ambient Humidity Increases Protein Catabolism

    E-Print Network [OSTI]

    Zanette, Liana

    and to increase flight range, (ii) the requirement for gluconeogenesis and anaplerosis of Kreb's cycle

  4. Cinematic Scientific Visualizations 

    E-Print Network [OSTI]

    Litaker, Kendall R

    2013-05-21

    is applied to the test cases of a nebula, star-forming region Sharpless 2-106, and a galaxy, Messier 51, or the Whirlpool Galaxy. The results of this thesis demonstrate the visual, scientific, and technical success of this solution. The code developed during...

  5. HOGgles: Visualizing Object Detection Features

    E-Print Network [OSTI]

    Vondrick, Carl Martin

    We introduce algorithms to visualize feature spaces used by object detectors. The tools in this paper allow a human to put on 'HOG goggles' and perceive the visual world as a HOG based object detector sees it. We found ...

  6. Attention and the Indeterminacy of Visual Experience

    E-Print Network [OSTI]

    Stazicker, James David

    2011-01-01

    Early in post-retinal visual processing, information aboutEarly in post-retinal visual processing, information about

  7. "FLIGHT PLAN" FORECASTS SEATTLE/TACOMA AND

    E-Print Network [OSTI]

    ASSESSMENT OF THE "FLIGHT PLAN" FORECASTS FOR SEATTLE/TACOMA AND REGIONAL AIRPORTS TOGETHER 1. Introduction 5 2. Airport Planning Process 7 Traditional Master Planning Application to Seattle/Tacoma. Uncertainty about Capacity 27 A Fuzzy Concept Assessment Factors Application to Seattle/Tacoma 7. Assessment

  8. Gliding and the Functional Origins of Flight

    E-Print Network [OSTI]

    McGuire, Jimmy A.

    in terrestrial vertebrates suggests progression within an arboreal context from jumping to directed aerial pathways involved in flight evolution. 179 Annu.Rev.Ecol.Evol.Syst.2007.38:179-201.Downloadedfromarjournals transitions, such as those between aquatic and terrestrial environments or between land and air, represent

  9. Processing Visual Images

    SciTech Connect (OSTI)

    Litke, Alan (UC Santa Cruz) [UC Santa Cruz

    2006-03-27

    The back of the eye is lined by an extraordinary biological pixel detector, the retina. This neural network is able to extract vital information about the external visual world, and transmit this information in a timely manner to the brain. In this talk, Professor Litke will describe a system that has been implemented to study how the retina processes and encodes dynamic visual images. Based on techniques and expertise acquired in the development of silicon microstrip detectors for high energy physics experiments, this system can simultaneously record the extracellular electrical activity of hundreds of retinal output neurons. After presenting first results obtained with this system, Professor Litke will describe additional applications of this incredible technology.

  10. Systems integration and upgrade of an Engineering Flight Simulator 

    E-Print Network [OSTI]

    Alcorn, William Pleasant

    2002-01-01

    This thesis presents the system integration and upgrade of the Texas A&M Flight Mechanics Laboratory Engineering Flight Simulator (EFS). This upgrade replaced the previous EFS, a simplistic design that did not resemble an aircraft cockpit...

  11. Master of Science Thesis Design, implementation and flight

    E-Print Network [OSTI]

    Langendoen, Koen

    Master of Science Thesis Design, implementation and flight test of indoor navigation and control and flight test of indoor navigation and control system for a quadrotor UAV Master of Science Thesis and flight test of indoor navigation and control system for a quadrotor UAV" by Menno Wierema B

  12. Amazing Cells Fight or Flight Response: Play-by-Play

    E-Print Network [OSTI]

    Clayton, Dale H.

    Module Amazing Cells Fight or Flight Response: Play-by-Play © 2008 University of Utah This document of the most remarkable examples of cell communication is the fight or flight response. When a threat occurs situations. The movie depicts just some of the communication and responses involved in the fight or flight

  13. Implementation of an Onboard Visual Tracking System with Small Unmanned Aerial Vehicle (UAV)

    E-Print Network [OSTI]

    Qadir, Ashraf; Neubert, Jeremiah

    2012-01-01

    This paper presents a visual tracking system that is capable or running real time on-board a small UAV (Unmanned Aerial Vehicle). The tracking system is computationally efficient and invariant to lighting changes and rotation of the object or the camera. Detection and tracking is autonomously carried out on the payload computer and there are two different methods for creation of the image patches. The first method starts detecting and tracking using a stored image patch created prior to flight with previous flight data. The second method allows the operator on the ground to select the interest object for the UAV to track. The tracking system is capable of re-detecting the object of interest in the events of tracking failure. Performance of the tracking system was verified both in the lab and during actual flights of the UAV. Results show that the system can run on-board and track a diverse set of objects in real time.

  14. On the flight of an American Football

    E-Print Network [OSTI]

    Curtis Horn; Heidi Fearn

    2007-06-04

    In this paper we examine the detailed theory of the American football in flight, with spin and air resistance included. We find the theory has much in common with the theory of a gyroscope and also rocket trajectory with a misaligned thruster. Unfortunately most of the air resistance data, for rocketry and ballistics, is for speeds of Mach 1 or higher, where the air resistance increases dramatically. We shall approximate a realistic air resistance, at the slower speeds of football flight, with a drag force proportional to cross sectional area and either $v$ or $v^2$, depending on speed, where $v$ is velocity of the football. We begin with a discussion of the motion, giving as much detail as possible without the use of complex analytic calculations. We point out the previous errors made with moments of inertia and make the necessary corrections for more accurate results. We show that the shape of an American football closely resembles a parabola of revolution.

  15. On the flight of an American Football

    E-Print Network [OSTI]

    Horn, Curtis

    2007-01-01

    In this paper we examine the detailed theory of the American football in flight, with spin and air resistance included. We find the theory has much in common with the theory of a gyroscope and also rocket trajectory with a misaligned thruster. Unfortunately most of the air resistance data, for rocketry and ballistics, is for speeds of Mach 1 or higher, where the air resistance increases dramatically. We shall approximate a realistic air resistance, at the slower speeds of football flight, with a drag force proportional to cross sectional area and either $v$ or $v^2$, depending on speed, where $v$ is velocity of the football. We begin with a discussion of the motion, giving as much detail as possible without the use of complex analytic calculations. We point out the previous errors made with moments of inertia and make the necessary corrections for more accurate results. We show that the shape of an American football closely resembles a parabola of revolution.

  16. Methods of visualizing graphs

    DOE Patents [OSTI]

    Wong, Pak C. (Richland, WA); Mackey, Patrick S. (Kennewick, WA); Perrine, Kenneth A. (Richland, WA); Foote, Harlan P. (Richland, WA); Thomas, James J. (Richland, WA)

    2008-12-23

    Methods for visualizing a graph by automatically drawing elements of the graph as labels are disclosed. In one embodiment, the method comprises receiving node information and edge information from an input device and/or communication interface, constructing a graph layout based at least in part on that information, wherein the edges are automatically drawn as labels, and displaying the graph on a display device according to the graph layout. In some embodiments, the nodes are automatically drawn as labels instead of, or in addition to, the label-edges.

  17. Los Alamos Novel Rocket Design Flight Tested

    SciTech Connect (OSTI)

    Tappan, Bryce

    2014-10-23

    Los Alamos National Laboratory scientists recently flight tested a new rocket design that includes a high-energy fuel and a motor design that also delivers a high degree of safety. Researchers will now work to scale-up the design, as well as explore miniaturization of the system, in order to exploit all potential applications that would require high-energy, high-velocity, and correspondingly high safety margins.

  18. Los Alamos Novel Rocket Design Flight Tested

    ScienceCinema (OSTI)

    Tappan, Bryce

    2015-01-05

    Los Alamos National Laboratory scientists recently flight tested a new rocket design that includes a high-energy fuel and a motor design that also delivers a high degree of safety. Researchers will now work to scale-up the design, as well as explore miniaturization of the system, in order to exploit all potential applications that would require high-energy, high-velocity, and correspondingly high safety margins.

  19. Time-of-flight radio location system

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1996-01-01

    A bi-static radar configuration measures the direct time-of-flight of a transmitted RF pulse and is capable of measuring this time-of-flight with a jitter on the order of about one pico-second, or about 0.01 inch of free space distance for an electromagnetic pulse over a range of about one to ten feet. A transmitter transmits a sequence of electromagnetic pulses in response to a transmit timing signal, and a receiver samples the sequence of electromagnetic pulses with controlled timing in response to a receive timing signal, and generates a sample signal in response to the samples. A timing circuit supplies the transmit timing signal to the transmitter and supplies the receive timing signal to the receiver. The receive timing signal causes the receiver to sample the sequence of electromagnetic pulses such that the time between transmission of pulses in the sequence and sampling by the receiver sweeps over a range of delays. The receive timing signal sweeps over the range of delays in a sweep cycle such that pulses in the sequence are sampled at the pulse repetition rate, and with different delays in the range of delays to produce a sample signal representing magnitude of a received pulse in equivalent time. Automatic gain control circuitry in the receiver controls the magnitude of the equivalent time sample signal. A signal processor analyzes the sample signal to indicate the time-of-flight of the electromagnetic pulses in the sequence.

  20. Time-of-flight radio location system

    DOE Patents [OSTI]

    McEwan, T.E.

    1996-04-23

    A bi-static radar configuration measures the direct time-of-flight of a transmitted RF pulse and is capable of measuring this time-of-flight with a jitter on the order of about one pico-second, or about 0.01 inch of free space distance for an electromagnetic pulse over a range of about one to ten feet. A transmitter transmits a sequence of electromagnetic pulses in response to a transmit timing signal, and a receiver samples the sequence of electromagnetic pulses with controlled timing in response to a receive timing signal, and generates a sample signal in response to the samples. A timing circuit supplies the transmit timing signal to the transmitter and supplies the receive timing signal to the receiver. The receive timing signal causes the receiver to sample the sequence of electromagnetic pulses such that the time between transmission of pulses in the sequence and sampling by the receiver sweeps over a range of delays. The receive timing signal sweeps over the range of delays in a sweep cycle such that pulses in the sequence are sampled at the pulse repetition rate, and with different delays in the range of delays to produce a sample signal representing magnitude of a received pulse in equivalent time. Automatic gain control circuitry in the receiver controls the magnitude of the equivalent time sample signal. A signal processor analyzes the sample signal to indicate the time-of-flight of the electromagnetic pulses in the sequence. 7 figs.

  1. Nonlinear Dimensionality Reduction for Visualization

    E-Print Network [OSTI]

    Verleysen, Michel

    ://perso.uclouvain.be/michel.verleysen/ 2 IREC, Universit´e catholique de Louvain, Belgium john.lee@uclouvain.be Abstract. The visual

  2. Scientific Visualization, Seeing the Unseeable

    ScienceCinema (OSTI)

    LBNL

    2009-09-01

    June 24, 2008 Berkeley Lab lecture: Scientific visualization transforms abstract data into readily comprehensible images, provide a vehicle for "seeing the unseeable," and play a central role in bo... June 24, 2008 Berkeley Lab lecture: Scientific visualization transforms abstract data into readily comprehensible images, provide a vehicle for "seeing the unseeable," and play a central role in both experimental and computational sciences. Wes Bethel, who heads the Scientific Visualization Group in the Computational Research Division, presents an overview of visualization and computer graphics, current research challenges, and future directions for the field.

  3. Perception and Attention for Visualization

    E-Print Network [OSTI]

    Haroz, Steve

    2013-01-01

    right halves of the regions of the visual field. This information,information (which news category is most prevalent? ). ).On the right

  4. Aging Enhances Indirect Flight Muscle Fiber Performance yet Decreases Flight Ability in Drosophila

    SciTech Connect (OSTI)

    Miller, Mark S.; Lekkas, Panagiotis; Braddock, Joan M.; Farman, Gerrie P.; Ballif, Bryan A.; Irving, Thomas C.; Maughan, David W.; Vigoreaux, Jim O. (IIT); (Vermont)

    2008-10-02

    We investigated the effects of aging on Drosophila melanogaster indirect flight muscle from the whole organism to the actomyosin cross-bridge. Median-aged (49-day-old) flies were flight impaired, had normal myofilament number and packing, barely longer sarcomeres, and slight mitochondrial deterioration compared with young (3-day-old) flies. Old (56-day-old) flies were unable to beat their wings, had deteriorated ultrastructure with severe mitochondrial damage, and their skinned fibers failed to activate with calcium. Small-amplitude sinusoidal length perturbation analysis showed median-aged indirect flight muscle fibers developed greater than twice the isometric force and power output of young fibers, yet cross-bridge kinetics were similar. Large increases in elastic and viscous moduli amplitude under active, passive, and rigor conditions suggest that median-aged fibers become stiffer longitudinally. Small-angle x-ray diffraction indicates that myosin heads move increasingly toward the thin filament with age, accounting for the increased transverse stiffness via cross-bridge formation. We propose that the observed protein composition changes in the connecting filaments, which anchor the thick filaments to the Z-disk, produce compensatory increases in longitudinal stiffness, isometric tension, power and actomyosin interaction in aging indirect flight muscle. We also speculate that a lack of MgATP due to damaged mitochondria accounts for the decreased flight performance.

  5. Knowledge Assisted Visualization Knowledge-assisted visualization of seismic data

    E-Print Network [OSTI]

    for knowledge-assisted annotation and computer-assisted interpretation of seismic data for oil and gas, using seismic interpretation, is performed that makes it fit very naturally into the paradigmKnowledge Assisted Visualization Knowledge-assisted visualization of seismic data Daniel Patel a

  6. Interacting with Microseismic Visualizations Microseismic visualization systems present complex 3D

    E-Print Network [OSTI]

    Greenberg, Saul

    Interacting with Microseismic Visualizations Abstract Microseismic visualization systems present that information. Author Keywords 3D microseismic visualizations; proxemic interactions ACM Classification Keywords, S., Brazil, E., Sharlin, E. and Sousa, M. (2013) Interacting with Microseismic Visualizations

  7. 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.

  8. Evaluation of a Vehicle Visualization

    E-Print Network [OSTI]

    Kameda, Yoshinari

    , "Ergonomic Design and Evaluation of Augmented Reality Based Cautionary Warnings for Driving Assistance *1 *2 *2 *2 *1 *2 CG Evaluation of a Vehicle Visualization In this paper, we report an evaluation of the visualization method that displays a hidden vehicle

  9. Time-of-flight radio location system

    DOE Patents [OSTI]

    McEwan, T.E.

    1997-08-26

    A bi-static radar configuration measures the direct time-of-flight of a transmitted RF pulse and is capable of measuring this time-of-flight with a jitter on the order of about one pico-second, or about 0.01 inch of free space distance for an electromagnetic pulse over a range of about one to ten feet. A transmitter transmits a sequence of electromagnetic pulses in response to a transmit timing signal, and a receiver samples the sequence of electromagnetic pulses with controlled timing in response to a receive timing signal, and generates a sample signal in response to the samples. A timing circuit supplies the transmit timing signal to the transmitter and supplies the receive timing signal to the receiver. The receive timing signal causes the receiver to sample the sequence of electromagnetic pulses such that the time between transmission of pulses in the sequence and sampling by the receiver sweeps over a range of delays. The receive timing signal sweeps over the range of delays in a sweep cycle such that pulses in the sequence are sampled at the pulse repetition rate, and with different delays in the range of delays to produce a sample signal representing magnitude of a received pulse in equivalent time. Automatic gain control circuitry in the receiver controls the magnitude of the equivalent time sample signal. A signal processor analyzes the sample signal to indicate the time-of-flight of the electromagnetic pulses in the sequence. The sample signal in equivalent time is passed through an envelope detection circuit, formed of an absolute value circuit followed by a low pass filter, to convert the sample signal to a unipolar signal to eliminate effects of antenna misorientation. 8 figs.

  10. Time-of-flight radio location system

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1997-01-01

    A bi-static radar configuration measures the direct time-of-flight of a transmitted RF pulse and is capable of measuring this time-of-flight with a jitter on the order of about one pico-second, or about 0.01 inch of free space distance for an electromagnetic pulse over a range of about one to ten feet. A transmitter transmits a sequence of electromagnetic pulses in response to a transmit timing signal, and a receiver samples the sequence of electromagnetic pulses with controlled timing in response to a receive timing signal, and generates a sample signal in response to the samples. A timing circuit supplies the transmit timing signal to the transmitter and supplies the receive timing signal to the receiver. The receive timing signal causes the receiver to sample the sequence of electromagnetic pulses such that the time between transmission of pulses in the sequence and sampling by the receiver sweeps over a range of delays. The receive timing signal sweeps over the range of delays in a sweep cycle such that pulses in the sequence are sampled at the pulse repetition rate, and with different delays in the range of delays to produce a sample signal representing magnitude of a received pulse in equivalent time. Automatic gain control circuitry in the receiver controls the magnitude of the equivalent time sample signal. A signal processor analyzes the sample signal to indicate the time-of-flight of the electromagnetic pulses in the sequence. The sample signal in equivalent time is passed through an envelope detection circuit, formed of an absolute value circuit followed by a low pass filter, to convert the sample signal to a unipolar signal to eliminate effects of antenna misorientation.

  11. Visualization of domain and concept descriptions

    E-Print Network [OSTI]

    Mladenic, Dunja

    coordinates method which was previously used for visualizing mul- tidimensional geometry. Visualization of examples and rules with the parallel coordinates method enables the analysis, an early approach to data visualization was by using a sim* *ple table representation of examples

  12. Flight Without Horizon References in European Starlings

    E-Print Network [OSTI]

    Moyle, Robert G.; Heppner, Frank H.

    1998-07-01

    :16:41 PM All use subject to JSTOR Terms and Conditions 772 Short Communications [Auk, Vol. 115 Plexiglas. Rayner (1994) summarized previous wind- tunnel studies and described how free flight may dif- fer from that in a closed-section wind tunnel. Wild... and navigation: A symposium. NASA SP- 262. United States Government Printing Office, Washington, D.C. JANDER, R. 1975. Ecological aspects of spatial orien- tation. Annual Review of Ecology and System- atics 6:171-188. RAYNER, J. M. V. 1994. Aerodynamic...

  13. Argonne In-Flight Radioactive Ion Separator

    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 Publications TraditionalWithAntiferromagnetic SpinsSolicitationsLaboratoryIn-Flight

  14. Flight Path 30R - About ICE II

    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 HABFES OctoberEvanServices »First ObservationFast ThisAboutR° flight

  15. Flight Path Target 4 East Port

    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 ofDid you not find whatGasEnergyfeature photoTheory05 Target 1 Flight

  16. The Flight Paths for Biojet Fuel

    Gasoline and Diesel Fuel Update (EIA)

    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 GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight Paths for Biojet Fuel Tony Radich

  17. 1566 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS--I: REGULAR PAPERS, VOL. 56, NO. 8, AUGUST 2009 A Low-Power Visual-Horizon Estimation Chip

    E-Print Network [OSTI]

    Horiuchi, Timothy K.

    in the construction of micro aerial vehicles ( 15 cm) have highlighted the lack of real-time sensors for flight environments and cannot give estimates of altitude. For these reasons, real-time detection of the visual horizon may be desir- able for the stabilization of pitch and roll of micro aerial vehi- cles at medium

  18. Ocean Thermal Extractable Energy Visualization: Final Technical...

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

    Ocean Thermal Extractable Energy Visualization: Final Technical Report Ocean Thermal Extractable Energy Visualization: Final Technical Report Report about the Ocean Thermal...

  19. Visualization and Analytics Software at NERSC

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

    Analytics Data, Visualization, and Analytics AVSExpress AVSExpress includes functionality for data visualization and analysis, image processing and data display. It uses a...

  20. Flight Test of Weapons System Body by Navy Successful | National...

    National Nuclear Security Administration (NNSA)

    nuclear explosive testing." The FCET-51 reentry body was designed to measure vibration and shock environments in flight. The next-generation telemetry capability was...

  1. Free-flight experiments in LISA Pathfinder

    E-Print Network [OSTI]

    M. Armano; H. Audley; G. Auger; J. Baird; P. Binetruy; M. Born; D. Bortoluzzi; N. Brandt; A. Bursi; M. Caleno; A. Cavalleri; A. Cesarini; M. Cruise; C. Cutler; K. Danzmann; I. Diepholz; R. Dolesi; N. Dunbar; L. Ferraioli; V. Ferroni; E. Fitzsimons; M. Freschi; J. Gallegos; C. Garcia. Marirrodriga; R. Gerndt; LI. Gesa; F. Gibert; D. Giardini; R. Giusteri; C. Grimani; I. Harrison; G. Heinzel; M. Hewitson; D. Hollington; M. Hueller; J. Huesler; H. Inchauspe; O. Jennrich; P. Jetzer; B. Johlander; N. Karnesis; B. Kaune; N. Korsakova; C. Killow; I. Lloro; R. Maarschalkerweerd; S. Madden; P. Maghami; D. Mance; V. Martin; F. Martin-Porqueras; I. Mateos; P. McNamara; J. Mendes; L. Mendes; A. Moroni; M. Nofrarias; S. Paczkowski; M. Perreur-Lloyd; A. Petiteau; P. Pivato; E. Plagnol; P. Prat; U. Ragnit; J. Ramos-Castro; J. Reiche; J. A. Romera. Perez; D. Robertson; H. Rozemeijer; G. Russano; P. Sarra; A. Schleicher; J. Slutsky; C. F. Sopuerta; T. Sumner; D. Texier; J. Thorpe; C. Trenkel; H. B. Tu; D. Vetrugno; S. Vitale; G. Wanner; H. Ward; S. Waschke; P. Wass; D. Wealthy; S. Wen; W. Weber; A. Wittchen; C. Zanoni; T. Ziegler; P. Zweifel

    2014-12-29

    The LISA Pathfinder mission will demonstrate the technology of drag-free test masses for use as inertial references in future space-based gravitational wave detectors. To accomplish this, the Pathfinder spacecraft will perform drag-free flight about a test mass while measuring the acceleration of this primary test mass relative to a second reference test mass. Because the reference test mass is contained within the same spacecraft, it is necessary to apply forces on it to maintain its position and attitude relative to the spacecraft. These forces are a potential source of acceleration noise in the LISA Pathfinder system that are not present in the full LISA configuration. While LISA Pathfinder has been designed to meet it's primary mission requirements in the presence of this noise, recent estimates suggest that the on-orbit performance may be limited by this `suspension noise'. The drift-mode or free-flight experiments provide an opportunity to mitigate this noise source and further characterize the underlying disturbances that are of interest to the designers of LISA-like instruments. This article provides a high-level overview of these experiments and the methods under development to analyze the resulting data.

  2. UI Design and Information Visualization

    E-Print Network [OSTI]

    Brock, David

    of components and elements per visual screen · Hierarchy of Data: Number of levels drilled down · Interaction of part, technical working · Skills/experience in Domain: Novice, Intermediate, Expert ­ Young vs. old

  3. Dynamic visualization of data streams

    DOE Patents [OSTI]

    Wong, Pak Chung (Richalnd, WA); Foote, Harlan P. (Richland, WA); Adams, Daniel R. (Kennewick, WA); Cowley, Wendy E. (Richland, WA); Thomas, James J. (Richland, WA)

    2009-07-07

    One embodiment of the present invention includes a data communication subsystem to receive a data stream, and a data processing subsystem responsive to the data communication subsystem to generate a visualization output based on a group of data vectors corresponding to a first portion of the data stream. The processing subsystem is further responsive to a change in rate of receipt of the data to modify the visualization output with one or more other data vectors corresponding to a second portion of the data stream as a function of eigenspace defined with the group of data vectors. The system further includes a display device responsive to the visualization output to provide a corresponding visualization.

  4. Visualization tools for moving objects 

    E-Print Network [OSTI]

    Vargas Estrada, Aimee

    2006-04-12

    In this work we describe the design and implementation of a general framework for visualizing and editing motion planning environments, problem instances, and their solutions. The motion planning problem consists of finding ...

  5. Data mining and visualization techniques

    DOE Patents [OSTI]

    Wong, Pak Chung (Richland, WA); Whitney, Paul (Richland, WA); Thomas, Jim (Richland, WA)

    2004-03-23

    Disclosed are association rule identification and visualization methods, systems, and apparatus. An association rule in data mining is an implication of the form X.fwdarw.Y where X is a set of antecedent items and Y is the consequent item. A unique visualization technique that provides multiple antecedent, consequent, confidence, and support information is disclosed to facilitate better presentation of large quantities of complex association rules.

  6. JSF AND VISUAL WEB DEVELOPMENT

    E-Print Network [OSTI]

    Liang, Y. Daniel

    JSF AND VISUAL WEB DEVELOPMENT CHAPTER 41 Objectives To explain what JSF is (§41.1). To create/16/09 10:18 AM Page 41­1 #12;41­2 Chapter 41 JSF and Visual Web Development 41.1 Introduction The use of servlets, introduced in Chapter 39, is the foundation of the Java Web technology. It is a primitive way

  7. LMS Qualification and Flight Acceptance T /V Test Summary

    E-Print Network [OSTI]

    Rathbun, Julie A.

    LMS Qualification and Flight Acceptance T /V Test Summary and Thermal Design Final Report NO. ATMIIIIDe yablinaDhllalan LMS Qualification and Flight Acceptance T/V Test Summary and Thermal Design Final Report PAGI DATI SUMMARY The LMS maintains thermal control. within the -10 to +125°F operating temperature

  8. An Application of Reinforcement Learning to Aerobatic Helicopter Flight

    E-Print Network [OSTI]

    Thrun, Sebastian

    An Application of Reinforcement Learning to Aerobatic Helicopter Flight Pieter Abbeel, Adam Coates Autonomous helicopter flight is widely regarded to be a highly challenging control problem. This paper presents the first successful autonomous completion on a real RC helicopter of the following four aerobatic

  9. Prediction of Jet Noise Shielding with Forward Flight Salvador Mayoral

    E-Print Network [OSTI]

    Papamoschou, Dimitri

    Prediction of Jet Noise Shielding with Forward Flight Effects Salvador Mayoral and Dimitri on the radiation of the isolated source as well as its diffraction by an object. Applications include the shielding to better shielding for the HWB problem. The overall error tends to be less than 5% for flight Mach number

  10. Genetic algorithms for tuning fuzzy membership functions in flight control software 

    E-Print Network [OSTI]

    Harral, Vance Quinton

    1995-01-01

    to their general aviation brethren. One project developed during the course of this research was a Flight Mode Interpreter (FMI). The FMI performs real-time, high-level situation recognition based on data from aircraft flight instruments. Flight modes...

  11. Visual experience induces long-term potentiation in the primary visual

    E-Print Network [OSTI]

    Cooke, Samuel Frazer

    Stimulus-specific response potentiation (SRP) is a robust form of experience-dependent plasticity that occurs in primary visual cortex. In awake mice, visual evoked potentials (VEPs) recorded in layer 4 of binocular visual ...

  12. Visual Experience Induces Long-Term Potentiation in the Primary Visual Cortex

    E-Print Network [OSTI]

    Cooke, Samuel Frazer

    Stimulus-specific response potentiation (SRP) is a robust form of experience-dependent plasticity that occurs in primary visual cortex. In awake mice, visual evoked potentials (VEPs) recorded in layer 4 of binocular visual ...

  13. Interacting with Microseismic Visualizations Microseismic visualization systems present complex 3D

    E-Print Network [OSTI]

    Greenberg, Saul

    Interacting with Microseismic Visualizations Abstract Microseismic visualization systems present that information. Author Keywords 3D microseismic visualizations; proxemic interactions ACM Classification Keywords] Maxwell, S. Microseismic: Growth born from success. The Leading Edge 29, 3 (2010), 338-343. Copyright

  14. NASA's Marshall Space Flight Center Saves Water with High-Efficiency...

    Office of Environmental Management (EM)

    with High-Efficiency Toilet and Urinal Program NASA Marshall Space Flight Center Improves Cooling System Performance NASA's Marshall Space Flight Center Saves Water with...

  15. ZEST flight test experiments, Kauai Test Facility, Hawaii. Test report

    SciTech Connect (OSTI)

    Cenkci, M.J.

    1991-07-01

    The Strategic Defense Initiative Organization (SDIO) is proposing to execute two ZEST flight experiments to obtain information related to the following objectives: validation of payload modeling; characterization of a high energy release cloud; and documentation of scientific phenomena that may occur as a result of releasing a high energy cloud. The proposed action is to design, develop, launch, and detonate two payloads carrying high energy explosives. Activities required to support this proposal include: (1) execution of component assembly tests at Space Data Division (SDD) in Chandler, Arizona and Los Alamos National Laboratory (LANL) in Los Alamos, New Mexico, and (2) execution of pre-flight flight test activities at Kauai Test Facility.

  16. Hyperspectral Aerosol Optical Depths from TCAP Flights

    SciTech Connect (OSTI)

    Shinozuka, Yohei; Johnson, Roy R.; Flynn, Connor J.; Russell, P. B.; Schmid, Beat; Redemann, Jens; Dunagan, Stephen; Kluzek, Celine D.; Hubbe, John M.; Segal-Rosenheimer, Michal; Livingston, J. M.; Eck, T.; Wagener, Richard; Gregory, L.; Chand, Duli; Berg, Larry K.; Rogers, Ray; Ferrare, R. A.; Hair, John; Hostetler, Chris A.; Burton, S. P.

    2013-11-13

    4STAR (Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research), the world’s first hyperspectral airborne tracking sunphotometer, acquired aerosol optical depths (AOD) at 1 Hz during all July 2012 flights of the Two Column Aerosol Project (TCAP). Root-mean square differences from AERONET ground-based observations were 0.01 at wavelengths between 500-1020 nm, 0.02 at 380 and 1640 nm and 0.03 at 440 nm in four clear-sky fly-over events, and similar in ground side-by-side comparisons. Changes in the above-aircraft AOD across 3-km-deep spirals were typically consistent with integrals of coincident in situ (on DOE Gulfstream 1 with 4STAR) and lidar (on NASA B200) extinction measurements within 0.01, 0.03, 0.01, 0.02, 0.02, 0.02 at 355, 450, 532, 550, 700, 1064 nm, respectively, despite atmospheric variations and combined measurement uncertainties. Finer vertical differentials of the 4STAR measurements matched the in situ ambient extinction profile within 14% for one homogeneous column. For the AOD observed between 350-1660 nm, excluding strong water vapor and oxygen absorption bands, estimated uncertainties were ~0.01 and dominated by (then) unpredictable throughput changes, up to +/-0.8%, of the fiber optic rotary joint. The favorable intercomparisons herald 4STAR’s spatially-resolved high-frequency hyperspectral products as a reliable tool for climate studies and satellite validation.

  17. A Taxonomy of Dynamic ATC Visualizations Christophe HURTER, Stphane CONVERSY

    E-Print Network [OSTI]

    A Taxonomy of Dynamic ATC Visualizations Christophe HURTER, Stéphane CONVERSY Abstract-- Air in the interpretation of visualization. Index Terms-- Information Visualization, taxonomy, graphical coding. I

  18. Test of the Spare Flight Model of UG electronics

    E-Print Network [OSTI]

    Roma "La Sapienza", Università di

    Test of the Spare Flight Model of UG electronics for the AMS TRD Gas System Bruno Borgia 1.1 The UG-crate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Test setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 Functionality test sequence . . . . . . . . . . . . . . . . . . . . . . . . 7 2 FS

  19. Test of the Flight Model of UG electronics

    E-Print Network [OSTI]

    Roma "La Sapienza", Università di

    Test of the Flight Model of UG electronics for the AMS TRD Gas System Bruno Borgia, Alessandro-crate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Test setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 Functionality test sequence . . . . . . . . . . . . . . . . . . . . . . . . 7 2 FM qualification test 8 2

  20. NASA's Marshall Space Flight Center Improves Cooling System Performanc...

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

    The program saved the facility more than 800,000 gallons of water in eight months. nasa-msfcwatercs2.pdf More Documents & Publications NASA's Marshall Space Flight Center...

  1. When Good Ideas Take Flight: Carlsbad Field Office Shows Support...

    Office of Environmental Management (EM)

    DOE Carlsbad Field Office (CBFO) Manager Joe Franco, right, took to the skies in a New Mexico National Guard UH-60 Blackhawk helicopter flight in southeast New Mexico recently. An...

  2. Vision-Aided Inertial Navigation for Flight Control

    E-Print Network [OSTI]

    Johnson, Eric N.

    wu@ae.gatech.edu. Lockheed Martin Assistant Professor of Avionics Integration, Aerospace Engineering from the fusion of this information with inertial and heading measurements. Simulation and flight test

  3. Flight test and evaluation of Omega navigation for general aviation

    E-Print Network [OSTI]

    Hwoschinsky, Peter V.

    1975-01-01

    A seventy hour flight test program was accomplished to determine the suitability and accuracy of a low cost Omega navigation receiver in a general aviation aircraft. An analysis was made of signal availability in two widely ...

  4. Dynamic and thermal control of an electromagnetic formation flight testbed

    E-Print Network [OSTI]

    Neave, Matthew D. (Matthew David)

    2005-01-01

    Formation flight of multiple spacecraft is an emerging method for completing complex space missions in an efficient manner. A limitation found in maintaining such formations is the need for precise control at all times. ...

  5. NASA's Marshall Space Flight Center Improves Cooling System Performance

    Broader source: Energy.gov [DOE]

    Case study details Marshall Space Flight Center's innovative technologies to improve water efficiency and cooling performance for one of its problematic cooling systems. The program saved the facility more than 800,000 gallons of water in eight months.

  6. Decomposing global light transport using time of flight imaging

    E-Print Network [OSTI]

    Wu, Di

    Global light transport is composed of direct and indirect components. In this paper, we take the first steps toward analyzing light transport using high temporal resolution information via time of flight (ToF) images. The ...

  7. Blended Interaction for Information Visualization

    E-Print Network [OSTI]

    Deussen, Oliver

    about digital information in ways that fit more closely with their existing everyday thinking practises; qualitative studies ACM Classification Keywords H.5.m. Information interfaces and presentation (e.g., HCI and digital actions, offer many new opportunities to think beyond current information visualization (Info

  8. MULTIVARIATE NONPARAMETRIC REGRESSION AND VISUALIZATION

    E-Print Network [OSTI]

    Klemelä, Jussi

    not be available in electronic format. Library of Congress Cataloging-in-Publication Data: Klemel¨a, Jussi AND CLASSIFICATION 1 Overview of Regression and Classification 3 2 Linear Methods and Extensions 77 3 Kernel Methods Visualization xxi I.4 Literature xxiii PART I METHODS OF REGRESSION AND CLASSIFICATION 1 Overview of Regression

  9. VISUALIZATION OF MAGNETICALLY CONFINED PLASMAS

    E-Print Network [OSTI]

    . Hence, there is a great need to develop viable renewable energy sources and increase the efforts a great promise for the future. Widespread in- troduction of fusion energy power plants could in experimental and theoretical fu- sion energy research towards more geometric details, visualization plays

  10. The human activity of visualization

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    Griffin et al 2006 #12;Human-Computer Interaction: Software of the Mind each user has a setThe human activity of visualization cultural and psychological factors in representation; Gibbon 1998; Marcus 2000) conventions and metaphors of Westerners may not hold worldwide colors

  11. Data sonification and sound visualization.

    SciTech Connect (OSTI)

    Kaper, H. G.; Tipei, S.; Wiebel, E.; Mathematics and Computer Science; Univ. of Illinois

    1999-07-01

    Sound can help us explore and analyze complex data sets in scientific computing. The authors describe a digital instrument for additive sound synthesis (Diass) and a program to visualize sounds in a virtual reality environment (M4Cave). Both are part of a comprehensive music composition environment that includes additional software for computer-assisted composition and automatic music notation.

  12. Carleton University Visual Identity Toolkit

    E-Print Network [OSTI]

    Dawson, Jeff W.

    THE LOGO/IDENTITY TREATMENT IN DETAIL FACULTIES, SCHOOLS AND ANCILLARY UNITS FACULTY, SCHOOL AND ANCILLARY UNIT IDENTITIES IN DETAIL NON-ACADEMIC ANCILLARY UNIT IDENTITIES A NOTE ON THE VISUAL IDENTITIES of Carleton's faculties, schools and ancillary units, as well as communications materials such as brochures

  13. VCAT: Visual Crosswalk Analysis Tool

    SciTech Connect (OSTI)

    Cleland, Timothy J. [Los Alamos National Laboratory; Forslund, David W. [Los Alamos National Laboratory; Cleland, Catherine A. [Los Alamos National Laboratory

    2012-08-31

    VCAT is a knowledge modeling and analysis tool. It was synthesized from ideas in functional analysis, business process modeling, and complex network science. VCAT discovers synergies by analyzing natural language descriptions. Specifically, it creates visual analytic perspectives that capture intended organization structures, then overlays the serendipitous relationships that point to potential synergies within an organization or across multiple organizations.

  14. Context-based visual feedback recognition

    E-Print Network [OSTI]

    Morency, Louis-Philippe, 1977-

    2007-01-01

    During face-to-face conversation, people use visual feedback (e.g., head and eye gesture) to communicate relevant information and to synchronize rhythm between participants. When recognizing visual feedback, people often ...

  15. Articulatory features for robust visual speech recognition

    E-Print Network [OSTI]

    Saenko, Ekaterina, 1976-

    2004-01-01

    This thesis explores a novel approach to visual speech modeling. Visual speech, or a sequence of images of the speaker's face, is traditionally viewed as a single stream of contiguous units, each corresponding to a phonetic ...

  16. Visualization Contest Applications due August 3

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

    due August 3 June 22, 2012 by Francesca Verdier (0 Comments) In support of the IEEE Symposium on Large-Scale Data Analysis and Visualization (LDAV) 2012's visualization...

  17. AUDIO-VISUAL AND MAINTENANCE SERVICES

    E-Print Network [OSTI]

    Victoria, University of

    AUDIO-VISUAL AND MAINTENANCE SERVICES University Policy No: AD2510 Classification: Administration Approving authority: Vice-President Finance and Operations Effective date: September, 2010 Supersedes for Audio Visual: services, equipment rental and maintenance on campus. DEFINITIONS For the purposes

  18. Energy Integration Visualization Room (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-08-01

    This two-page fact sheet describes the new Energy Integration Visualization Room in the ESIF and talks about some of the capabilities and unique visualization features of the the room.

  19. Painting and Visualization Robert M. Kirby

    E-Print Network [OSTI]

    Laidlaw, David

    Painting and Visualization Robert M. Kirby School of Computing and Scientific Computing and Imaging Department of Computer Science Brown University October 10, 2003 1 Introduction Art, in particular painting manifested in collaborative teams, new painting-inspired visualization techniques, or new visualization

  20. Visual Attention: Light Enters the Jochen Braun

    E-Print Network [OSTI]

    Braun, Jochen

    Visual Attention: Light Enters the Jungle Jochen Braun Recent studies focusing on basic visual-perceptual processing that awareness entails -- short-term memory, percep- tual decisions, voluntary responses and so time. The coaxing was done by a visual search near fixation, which the observer was obliged to carry

  1. Brief Communication Reorganization of Visual Processing in

    E-Print Network [OSTI]

    Kanwisher, Nancy

    Brief Communication Reorganization of Visual Processing in Macular Degeneration Chris I. Baker,1. In such cases, the macular damage eliminates the normal retinal input to a large region of visual cortex subjects with extensive bilateral central retinal lesions, we found that parts of visual cortex (including

  2. Cognitive Foundations for Visual Analytics

    SciTech Connect (OSTI)

    Greitzer, Frank L.; Noonan, Christine F.; Franklin, Lyndsey

    2011-02-25

    In this report, we provide an overview of scientific/technical literature on information visualization and VA. Topics discussed include an update and overview of the extensive literature search conducted for this study, the nature and purpose of the field, major research thrusts, and scientific foundations. We review methodologies for evaluating and measuring the impact of VA technologies as well as taxonomies that have been proposed for various purposes to support the VA community. A cognitive science perspective underlies each of these discussions.

  3. Visualizing Cyber Security: Usable Workspaces

    SciTech Connect (OSTI)

    Fink, Glenn A.; North, Christopher L.; Endert, Alexander; Rose, Stuart J.

    2009-10-11

    An environment that supports cyber analytics work should enable multiple, simultaneous investigations, information foraging, and provide a solution space for organizing data. We describe our study of cyber security professionals and visualizations in a large, high-resolution display work environment. We discuss the tasks and needs of analysts that such an environment can support and present several prototypes designed to support these needs. We conclude with a usability evaluation of the prototypes and additional lessons learned.

  4. SUBSURFACE VISUAL ALARM SYSTEM ANALYSIS

    SciTech Connect (OSTI)

    D.W. Markman

    2001-08-06

    The ''Subsurface Fire Hazard Analysis'' (CRWMS M&O 1998, page 61), and the document, ''Title III Evaluation Report for the Surface and Subsurface Communication System'', (CRWMS M&O 1999a, pages 21 and 23), both indicate the installed communication system is adequate to support Exploratory Studies Facility (ESF) activities with the exception of the mine phone system for emergency notification purposes. They recommend the installation of a visual alarm system to supplement the page/party phone system The purpose of this analysis is to identify data communication highway design approaches, and provide justification for the selected or recommended alternatives for the data communication of the subsurface visual alarm system. This analysis is being prepared to document a basis for the design selection of the data communication method. This analysis will briefly describe existing data or voice communication or monitoring systems within the ESF, and look at how these may be revised or adapted to support the needed data highway of the subsurface visual alarm. system. The existing PLC communication system installed in subsurface is providing data communication for alcove No.5 ventilation fans, south portal ventilation fans, bulkhead doors and generator monitoring system. It is given that the data communication of the subsurface visual alarm system will be a digital based system. It is also given that it is most feasible to take advantage of existing systems and equipment and not consider an entirely new data communication system design and installation. The scope and primary objectives of this analysis are to: (1) Briefly review and describe existing available data communication highways or systems within the ESF. (2) Examine technical characteristics of an existing system to disqualify a design alternative is paramount in minimizing the number of and depth of a system review. (3) Apply general engineering design practices or criteria such as relative cost, and degree of difficulty and complexity in determining requirements in adapting existing data communication highways to support the subsurface visual alarm system. These requirements would include such things as added or new communication cables, added Programmable Logic Controller (PLC), Inputs and Outputs (I/O), and communication hardware components, and human machine interfaces and their software operating system. (4) Select the best data communication highway system based on this review of adapting or integrating with existing data communication systems.

  5. PHARAO Laser Source Flight Model: Design and Performances

    E-Print Network [OSTI]

    Lévèque, Thomas; Esnault, François-Xavier; Delaroche, Christophe; Massonnet, Didier; Grosjean, Olivier; Buffe, Fabrice; Torresi, Patrizia; Bomer, Thierry; Pichon, Alexandre; Béraud, Pascal; Lelay, Jean-Pierre; Thomin, Stéphane; Laurent, Philippe

    2015-01-01

    In this paper, we describe the design and the main performances of the PHARAO laser source flight model. PHARAO is a laser cooled cesium clock specially designed for operation in space and the laser source is one of the main sub-systems. The flight model presented in this work is the first remote-controlled laser system designed for spaceborne cold atom manipulation. The main challenges arise from mechanical compatibility with space constraints, which impose a high level of compactness, a low electric power consumption, a wide range of operating temperature and a vacuum environment. We describe the main functions of the laser source and give an overview of the main technologies developed for this instrument. We present some results of the qualification process. The characteristics of the laser source flight model, and their impact on the clock performances, have been verified in operational conditions.

  6. Aircraft Integration and Flight Testing of 4STAR

    SciTech Connect (OSTI)

    Flynn, CJ; Kassianov, E; Russell, P; Redemann, J; Dunagan, S; Holben, B

    2012-10-12

    Under funding from the U.S. Dept. of Energy, in conjunction with a funded NASA 2008 ROSES proposal, with internal support from Battelle Pacific Northwest Division (PNWD), and in collaboration with NASA Ames Research Center, we successfully integrated the Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research (4STAR-Air) instrument for flight operation aboard Battelle’s G-1 aircraft and conducted a series of airborne and ground-based intensive measurement campaigns (hereafter referred to as “intensives”) for the purpose of maturing the initial 4STAR-Ground prototype to a flight-ready science-ready configuration.

  7. Ocean Thermal Extractable Energy Visualization

    SciTech Connect (OSTI)

    Ascari, Matthew

    2012-10-28

    The Ocean Thermal Extractable Energy Visualization (OTEEV) project focuses on assessing the Maximum Practicably Extractable Energy (MPEE) from the world’s ocean thermal resources. MPEE is defined as being sustainable and technically feasible, given today’s state-of-the-art ocean energy technology. Under this project the OTEEV team developed a comprehensive Geospatial Information System (GIS) dataset and software tool, and used the tool to provide a meaningful assessment of MPEE from the global and domestic U.S. ocean thermal resources.

  8. Visual-servoing optical microscopy

    SciTech Connect (OSTI)

    Callahan, Daniel E; Parvin, Bahram

    2013-10-01

    The present invention provides methods and devices for the knowledge-based discovery and optimization of differences between cell types. In particular, the present invention provides visual servoing optical microscopy, as well as analysis methods. The present invention provides means for the close monitoring of hundreds of individual, living cells over time; quantification of dynamic physiological responses in multiple channels; real-time digital image segmentation and analysis; intelligent, repetitive computer-applied cell stress and cell stimulation; and the ability to return to the same field of cells for long-term studies and observation. The present invention further provides means to optimize culture conditions for specific subpopulations of cells.

  9. Visualizing Twenty Years of Applications

    SciTech Connect (OSTI)

    Potel, Mike; Wong, Pak C.

    2014-11-01

    This issue of IEEE Computer Graphics and Applications marks the 20th anniversary of the Applications department as a regular feature of the magazine. We thought it might be interesting to look back at the 20 years of Applications department articles to assess its evolution over that time. By aggregating all twenty years of articles and applying a little statistical and visual analytics, we’ve uncovered some interesting characteristics and trends we thought we’d share to mark this 20 year milestone.

  10. Visual-servoing optical microscopy

    DOE Patents [OSTI]

    Callahan, Daniel E. (Martinez, CA); Parvin, Bahram (Mill Valley, CA)

    2011-05-24

    The present invention provides methods and devices for the knowledge-based discovery and optimization of differences between cell types. In particular, the present invention provides visual servoing optical microscopy, as well as analysis methods. The present invention provides means for the close monitoring of hundreds of individual, living cells over time; quantification of dynamic physiological responses in multiple channels; real-time digital image segmentation and analysis; intelligent, repetitive computer-applied cell stress and cell stimulation; and the ability to return to the same field of cells for long-term studies and observation. The present invention further provides means to optimize culture conditions for specific subpopulations of cells.

  11. Visual-servoing optical microscopy

    DOE Patents [OSTI]

    Callahan, Daniel E. (Martinez, CA); Parvin, Bahram (Hercules, CA)

    2009-06-09

    The present invention provides methods and devices for the knowledge-based discovery and optimization of differences between cell types. In particular, the present invention provides visual servoing optical microscopy, as well as analysis methods. The present invention provides means for the close monitoring of hundreds of individual, living cells over time: quantification of dynamic physiological responses in multiple channels; real-time digital image segmentation and analysis; intelligent, repetitive computer-applied cell stress and cell stimulation; and the ability to return to the same field of cells for long-term studies and observation. The present invention further provides means to optimize culture conditions for specific subpopulations of cells.

  12. Visual Analysis of Weblog Content

    SciTech Connect (OSTI)

    Gregory, Michelle L.; Payne, Deborah A.; McColgin, Dave; Cramer, Nick O.; Love, Douglas V.

    2007-03-26

    In recent years, one of the advances of the World Wide Web is social media and one of the fastest growing aspects of social media is the blogosphere. Blogs make content creation easy and are highly accessible through web pages and syndication. With their growing influence, a need has arisen to be able to monitor the opinions and insight revealed within their content. In this paper we describe a technical approach for analyzing the content of blog data using a visual analytic tool, IN-SPIRE, developed by Pacific Northwest National Laboratory. We highlight the capabilities of this tool that are particularly useful for information gathering from blog data.

  13. Visualization | OpenEI Community

    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 on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (Utility Company)Idaho) JumpWinside,Visualization Home Sfederspiel's

  14. Visual 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 on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin FilmUnitedVairexVertVillage ofVirginia/WindVirtusVisionVisual

  15. Mini-review of Electron Density Visualization

    SciTech Connect (OSTI)

    Adler, Joan; Adler, Omri; Kreif, Meytal; Cohen, Or; Grosso, Bastien; Hashibon, Adham; Cooper, Valentino R

    2015-01-01

    We describe both educational and research oriented examples of electronic density visualization with AViz. Several detailed cases are presented and the procedures for their preparation are described.

  16. Introducing FRED, Enabling Unique Visualization and Manipulation...

    Open Energy Info (EERE)

    Introducing FRED, Enabling Unique Visualization and Manipulation of Energy Data at Multiple Scales Home > Groups > OpenEI Community Central Sfederspiel's picture Submitted by...

  17. Data Analysis & Visualization | Neutron Science | ORNL

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

    Data Analysis and Visualization As the data sets generated by the increasingly powerful neutron scattering instruments at HFIR and SNS grow ever more massive, the facilities'...

  18. Neutron Data Analysis & Visualization | More Science | ORNL

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

    Data Analysis and Visualization As the data sets generated by the increasingly powerful neutron scattering instruments at HFIR and SNS grow ever more massive, the facilities'...

  19. Visualization of Microearthquake Data from Enhanced Geothermal...

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

    Microearthquake Visualization of Microearthquake Data from Enhanced Geothermal Systems microearthquake.png We are working with geophysicists in the Earth Sciences Division (ESD) at...

  20. Computational models of early visual processing layers

    E-Print Network [OSTI]

    Shan, Honghao

    2010-01-01

    prevailing view of retinal processing. However, as discussedsimplified) model of retinal processing. A Retinal Codingretinal coding, the pre-cortical stage of visual processing,

  1. Towards a Visual Turing Challenge

    E-Print Network [OSTI]

    Mateusz Malinowski; Mario Fritz

    2015-05-05

    As language and visual understanding by machines progresses rapidly, we are observing an increasing interest in holistic architectures that tightly interlink both modalities in a joint learning and inference process. This trend has allowed the community to progress towards more challenging and open tasks and refueled the hope at achieving the old AI dream of building machines that could pass a turing test in open domains. In order to steadily make progress towards this goal, we realize that quantifying performance becomes increasingly difficult. Therefore we ask how we can precisely define such challenges and how we can evaluate different algorithms on this open tasks? In this paper, we summarize and discuss such challenges as well as try to give answers where appropriate options are available in the literature. We exemplify some of the solutions on a recently presented dataset of question-answering task based on real-world indoor images that establishes a visual turing challenge. Finally, we argue despite the success of unique ground-truth annotation, we likely have to step away from carefully curated dataset and rather rely on 'social consensus' as the main driving force to create suitable benchmarks. Providing coverage in this inherently ambiguous output space is an emerging challenge that we face in order to make quantifiable progress in this area.

  2. INTRODUCTION 1.1 Aerodynamics of Rotors in Forward Flight

    E-Print Network [OSTI]

    design. In order to capture the above physical phenomena, the influence of the inflow, blade dynamics1 CHAPTER I INTRODUCTION 1.1 Aerodynamics of Rotors in Forward Flight The prediction of rotor blade. Shock induced separation and shock motion along the chord of the blade may occur. Because the inboard

  3. Flight Demonstrations of Cooperative Control for UAV Teams

    E-Print Network [OSTI]

    Flight Demonstrations of Cooperative Control for UAV Teams Jonathan How , Ellis King , and Yoshiaki (UAVs) that was designed as a platform for evaluating autonomous coordination and control algorithms. Future UAV teams will have to autonomously demonstrate cooperative behaviors in dynamic and uncertain

  4. Bill Steigerwald Goddard Space Flight Center, Greenbelt, Md.

    E-Print Network [OSTI]

    's Goddard Space Flight Center, the University of Chicago, University of Wisconsin, and the Danish Space will provide a powerful way to tell which of several explanations of the current data are correct. The TopHat experiment includes a spinning telescope and a detector system. It maps a 48-degree diameter disk of the sky

  5. Flight Projects 2 Technology and Space Program Development 13

    E-Print Network [OSTI]

    are steadily approaching the goal of providing solar cell arrays at a cost com- petitive with other energy#12;Flight Projects 2 Technology and Space Program Development 13 Tracking and Data Acquisition 22, a future in which I feel we will provide unique services to the nation in the exploration of the solar

  6. A Review on Fish Swimming and Bird/Insect Flight

    E-Print Network [OSTI]

    Theodore Yaotsu Wu

    2010-07-29

    This expository review is devoted to fish swimming and bird/insect flight. (i) The simple waving motion of an elongated flexible ribbon plate of constant width, immersed in a fluid at rest, propagating a wave distally down the plate to swim forward is first considered to provide a fundamental concept on energy conservation. It is generalized to include variations in body width and thickness, vortex shedding from appended dorsal, ventral and caudal fins to closely simulate fish swimming for which a nonlinear theory is presented for large-amplitude propulsion. (ii) For bird flight, the pioneering studies on oscillating rigid wings are briefed, followed by presenting a nonlinear unsteady theory for flexible wing with arbitrary variations in shape and trajectory with a comparative study with experiments. (iii) For insect flight, more recent advances are reviewed under aerodynamic theory and modeling, computational methods, and experiments, on forward and hovering flights with producing leading-edge vortex to give unsteady high lift. (iv) Prospects are explored on extracting intrinsic flow energy by fish and bird to gain thrust for propulsion. (v) The mechanical and biological principles are drawn together for unified studies on the energetics in deriving metabolic power for animal locomotion, leading to a surprising discovery that the hydrodynamic viscous drag on swimming fish is largely associated with laminar boundary layers, thus drawing valid and sound evidences for a resolution to the fish-swim paradox proclaimed by Gray (1936, 1968).

  7. Systematic Verification of Operational Flight Program through Reverse Engineering

    E-Print Network [OSTI]

    project aims to develop an unmanned helicopter and its on-flight embedded computing system for navigation services for unmanned helicopter that shall be used for disaster response or recovery using real and actuators equipped in the helicopter. The OFP as a safety-critical and mission-critical system should

  8. Unsteady Aerodynamic Models for Agile Flight at Low Reynolds Numbers

    E-Print Network [OSTI]

    Rowley, Clarence W.

    for Wagner's and Theodorsen's models, making them compatible with modern control-system analysis. A number thanks are to my advisor, Clancy Rowley, who has been both a role model and a source of encouragementUnsteady Aerodynamic Models for Agile Flight at Low Reynolds Numbers Steven L. Brunton

  9. AERODYNAMICS AND DESIGN FOR ULTRA-LOW REYNOLDS NUMBER FLIGHT

    E-Print Network [OSTI]

    Stanford University

    AERODYNAMICS AND DESIGN FOR ULTRA-LOW REYNOLDS NUMBER FLIGHT A DISSERTATION SUBMITTED at Reynolds numbers below 10,000, here termed ultra-low Reynolds numbers. The effects of airfoil geometry at ultra-low Reynolds numbers. To further explore this design space, the flow solver has been coupled

  10. Chaos in Nonlinear Dynamical Systems Helicopter Flight-data Analysis

    E-Print Network [OSTI]

    Taylor, James H.

    Chaos in Nonlinear Dynamical Systems ­ Helicopter Flight-data Analysis James H. Taylor1 and S of chaos in nonlinear dynamical systems is discussed, and approaches for the identification of chaos can only occur in systems with nonlinear dynamics. The recognition of chaos in a complex dynamical

  11. HOVERING FLIGHT FOR A MICROMECHANICAL FLYING INSECT: MODELING AND ROBUST

    E-Print Network [OSTI]

    California at Berkeley, University of

    Schenato Xinyan Deng Shankar Sastry Department of Electrical Engineering and Computer Sciences recent remarkable achievements obtained with fixed and rotary air- crafts (Shim et al., 2000), their use to aerial vehicles based on rotary wings, such as helicopter, flying insects control their flight

  12. Prediction of visual perceptions with artificial neural networks in a visual prosthesis for the blind

    E-Print Network [OSTI]

    Verleysen, Michel

    Prediction of visual perceptions with artificial neural networks in a visual prosthesis based visual prosthesis in order to restore partial vision to the blind. In this paper, an attempt been published in [1]. We propose to use artificial neural networks (ANNs) for predicting the features

  13. Interacting with Microseismic Visualizations Microseismic visualization systems present complex 3D

    E-Print Network [OSTI]

    Greenberg, Saul

    Interacting with Microseismic Visualizations Abstract Microseismic visualization systems present that information. Author Keywords 3D microseismic visualizations; proxemic interactions ACM Classification Keywords@ucalgary.ca Figure 1. Microseismic data #12;Introduction Microseismic data is multi-dimensional data containing 3D

  14. Visual Information Systems Pr. Robert Laurini Chapter VI: Visual Portals to Multimedia Information Systems 1

    E-Print Network [OSTI]

    Laurini, Robert

    Visual Information Systems Pr. Robert Laurini Chapter VI: Visual Portals to Multimedia Information Systems 1 Chapter VI Visual Portals to Multimedia Information Systems http://puebla.turista.com.mx/ What is a portal? · Portal = an entry mechanism for an information system · A good portal = a portail allowing

  15. IEEE Visualization Contest 2011 Visualizing Unsteady Vortical Behavior of a Centrifugal Pump

    E-Print Network [OSTI]

    IEEE Visualization Contest 2011 Visualizing Unsteady Vortical Behavior of a Centrifugal Pump number 226042. em eg We present our results analyzing a centrifugal pump as a part of the IEEE Visualization Contest 2011. The given data set represents a high resolution simulation of a centrifugal pump

  16. Reaction-in-Flight Neutrons and the Stopping Power in Cryogenic...

    Office of Scientific and Technical Information (OSTI)

    Reaction-in-Flight Neutrons and the Stopping Power in Cryogenic NIF Capsules Citation Details In-Document Search Title: Reaction-in-Flight Neutrons and the Stopping Power in...

  17. The Chandra High Energy Transmission Grating: Design, Fabrication, Ground Calibration and Five Years in Flight

    E-Print Network [OSTI]

    Canizares, Claude R.

    Details of the design, fabrication, and ground and flight calibration of the High Energy Transmission Grating (HETG) on the Chandra X?Ray Observatory are presented after 5 years of flight experience. Specifics include the ...

  18. Cryogenic heat pipe for cooling high temperature superconductors with application to Electromagnetic Formation Flight Satellites

    E-Print Network [OSTI]

    Kwon, Daniel W., 1980-

    2009-01-01

    An emerging method of propellant-less formation flight propulsion is the use of electromagnets coupled with reaction wheels. This technique is called Electromagnetic Formation Flight (EMFF). In order to create a large ...

  19. Design and safety analysis of an in-flight, test airfoil 

    E-Print Network [OSTI]

    McKnight, Christopher William

    2006-10-30

    The evaluation of an in-flight airfoil model requires extensive analysis of a variety of structural systems. Determining the safety of the design is a unique task dependant on the aircraft, flight environment, and physical requirements...

  20. Environmental Data Upload and Visualization Tools

    E-Print Network [OSTI]

    Environmental Data Upload and Visualization Tools Cristina Grosso, John Oram, Shira Bezalel, Todd;Tool Development Data upload Standard data storage Data visualization #12;Regional Monitoring Program ­tailored to answer specific questions #12;Data Upload Tools #12;#12;#12;#12;Please add new Method Code

  1. Query-Driven Visualization and Analysis

    SciTech Connect (OSTI)

    Ruebel, Oliver; Bethel, E. Wes; Prabhat, Mr.; Wu, Kesheng

    2012-11-01

    This report focuses on an approach to high performance visualization and analysis, termed query-driven visualization and analysis (QDV). QDV aims to reduce the amount of data that needs to be processed by the visualization, analysis, and rendering pipelines. The goal of the data reduction process is to separate out data that is "scientifically interesting'' and to focus visualization, analysis, and rendering on that interesting subset. The premise is that for any given visualization or analysis task, the data subset of interest is much smaller than the larger, complete data set. This strategy---extracting smaller data subsets of interest and focusing of the visualization processing on these subsets---is complementary to the approach of increasing the capacity of the visualization, analysis, and rendering pipelines through parallelism. This report discusses the fundamental concepts in QDV, their relationship to different stages in the visualization and analysis pipelines, and presents QDV's application to problems in diverse areas, ranging from forensic cybersecurity to high energy physics.

  2. RAMS/HYPACT Evaluation and Visualization Utilities

    E-Print Network [OSTI]

    Gohm, Alexander

    REVU RAMS/HYPACT Evaluation and Visualization Utilities Version 2.3.1 User's Guide August 20, 2001 and Visualization Utilities (REVU), which is the standard supported package for generating graphical representations data in one of several available formats (e.g. Vis5D, GrADS, GRIB). REVU utilizes NCAR Graphics

  3. Cortical spatiotemporal plasticity in visual category learning

    E-Print Network [OSTI]

    Cortical spatiotemporal plasticity in visual category learning Yang Xu August 2013 CMU-ML-13-110 #12;#12;Cortical spatiotemporal plasticity in visual category learning Yang Xu August 2013 CMU-ML-13 of Philosophy c 2013 Yang Xu This research was sponsored by the National Institutes of Health under grant

  4. Occam's Razor and Petascale Visual Data Analysis

    SciTech Connect (OSTI)

    Bethel, E. Wes; Johnson, Chris; Ahern, Sean; Bell, John; Bremer, Peer-Timo; Childs, Hank; Cormier-Michel, Estelle; Day, Marc; Deines, Eduard; Fogal, Tom; Garth, Christoph; Geddes, Cameron; Hagen, Hans; Hamann, Bernd; Hansen, Charles; Jacobsen, Janet; Joy, Ken; Kruger, Jens; Meredith, Jeremy; Messmer, Peter; Ostrouchov, George; Pascucci, Valerio; Potter, Kristi; Prabhat, D.; Pugmire, David; Rubel, Oliver; Sanderson, Allen; Silva, Claudio; Ushizima, Daniela; Weber, Gunther; Whitlock, Brad; Wu, Kesheng

    2009-06-12

    One of the central challenges facing visualization research is how to effectively enable knowledge discovery. An effective approach will likely combine application architectures that are capable of running on today?s largest platforms to address the challenges posed by large data with visual data analysis techniques that help find, represent, and effectively convey scientifically interesting features and phenomena.

  5. Computational Steering in Visualization Dataflow Environments

    E-Print Network [OSTI]

    Brodlie, Ken

    of Computing, University of Leeds, UK Email: kwb@comp.leeds.ac.uk Keywords: Visualization, computational on the basis of the visualization of the current results. This paper is essentially a review paper, in which we system we use at Leeds) so as to provide the security that is expected in modern computing environments

  6. RESULTS AND DISCUSSION -Part I UH60A Rotor in High Speed Forward Flight

    E-Print Network [OSTI]

    , typical of that found on a current generation army helicopter. It has a complex blade form that tends in this chapter is that of a UH-60A rotor in high speed forward flight condition. This case was chosen to test helicopter low speed descent flight. This particular flight condition is dominated by BVI phenomena

  7. Insects owe much of their extraordinary evolutionary success to flight. Compared with their flightless ancestors,

    E-Print Network [OSTI]

    Daniel, Tom

    flapping motion of insects have combined to thwart simple `back-of-the-envelope' explanations of flight simplifying assumptions to build more rigorous models of insect flight. It is this more detailed view have allowed researchers to make rapid progress in advancing our understanding of insect flight

  8. AFFILIATIONS: CAHALAN--NASA Goddard Space Flight Center, Greenbelt, Maryland; OREOPOULOS, VRNAI, AND WEN--University

    E-Print Network [OSTI]

    Robert, Pincus

    M AFFILIATIONS: CAHALAN--NASA Goddard Space Flight Center, Greenbelt, Maryland; OREOPOULOS, VÁRNAI, AND WEN--University of Maryland, Baltimore County, Baltimore, and NASA Goddard Space Flight Center, Greenbelt, Maryland; MARSHAK--NASA Goddard Space Flight Center, Greenbelt, and University of Mary- land

  9. Computer systems and methods for visualizing data

    DOE Patents [OSTI]

    Stolte, Chris (Palo Alto, CA); Hanrahan, Patrick (Portola Valley, CA)

    2010-07-13

    A method for forming a visual plot using a hierarchical structure of a dataset. The dataset comprises a measure and a dimension. The dimension consists of a plurality of levels. The plurality of levels form a dimension hierarchy. The visual plot is constructed based on a specification. A first level from the plurality of levels is represented by a first component of the visual plot. A second level from the plurality of levels is represented by a second component of the visual plot. The dataset is queried to retrieve data in accordance with the specification. The data includes all or a portion of the dimension and all or a portion of the measure. The visual plot is populated with the retrieved data in accordance with the specification.

  10. 3D Representations for Software Visualization Andrian Marcus

    E-Print Network [OSTI]

    Maletic, Jonathan I.

    research from software analysis, information visualization, human-computer interaction, and cognitive, texture, abstraction mechanism, and by supporting new manipulation techniques and user interfaces.2 [Information Interfaces and Presentation] User Interfaces Keywords: Software visualization, 3D visualization

  11. MULTIVARIATE VISUALIZATION OF DATA QUALITY ELEMENTS FOR COASTAL ZONE MONITORING

    E-Print Network [OSTI]

    MULTIVARIATE VISUALIZATION OF DATA QUALITY ELEMENTS FOR COASTAL ZONE MONITORING D. E. van de Vlag for illustrating quantitative values of quality elements using multivariate visualization techniques. Quality, temporal accuracy and completeness. By combining multivariate visualization with the technique of multiple

  12. Can the vertical motions in the eyewall of tropical cyclones support persistent UAV flight?

    E-Print Network [OSTI]

    Poh, Chung-Kiak

    2014-01-01

    Powered flights in the form of manned or unmanned aerial vehicles (UAVs) have been flying into tropical cyclones to obtain vital atmospheric measurements with flight duration typically lasting between 12 and 36 hours. Convective vertical motion properties of tropical cyclones have previously been studied. This work investigates the possibility to achieve persistent flight by harnessing the generally pervasive updrafts in the eyewall of tropical cyclones. A sailplane UAV capable of vertical take-off and landing (VTOL) is proposed and its flight characteristics simulated. Results suggest that the concept of persistent flight within the eyewall is promising and may be extendable to the rainband regions.

  13. Planning, Execution, and Analysis of the Meridian UAS Flight Test Program Including System and Parameter Identification

    E-Print Network [OSTI]

    Tom, Jonathan

    2010-04-27

    systems must be thoroughly tested on the ground before the tested in flight. 3.1.2 Flight Test Limits The Phase I flight test limits for the Meridian are as follows: 1. Manual Flight Time Limit: 30 minutes 2. Maximum Crosswinds: 5 knots 3. Maximum...-of-sight. The maximum crosswinds are limited to 5 knots to ease the difficulty of landing the aircraft. The maximum constant winds are limited to 10 knots of head wind with 5 knots of gust to limit in flight turbulence. Having the wind out of the north...

  14. Geographic Information System for Visualization of PHEV Fleet...

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

    Geographic Information System for Visualization of PHEV Fleet Data Geographic Information System for Visualization of PHEV Fleet Data 2010 DOE Vehicle Technologies and Hydrogen...

  15. 64 _____________________________________Math & Computational Sciences Division High Performance Computing and Visualization

    E-Print Network [OSTI]

    Perkins, Richard A.

    64 _____________________________________Math & Computational Sciences Division High Performance Computing and Visualization Research and Development in Visual Analysis Judith Devaney Terrence Griffin John

  16. Visualization and Analysis of 3D Gene Expression Data (Technical...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Visualization and Analysis of 3D Gene Expression Data Citation Details In-Document Search Title: Visualization and Analysis of 3D Gene Expression Data Recent...

  17. Scalable Run Time Data Collection Analysis and Visualization...

    Office of Scientific and Technical Information (OSTI)

    Scalable Run Time Data Collection Analysis and Visualization (Presentation). Citation Details In-Document Search Title: Scalable Run Time Data Collection Analysis and Visualization...

  18. Four-winged flapping flyer in forward flight

    E-Print Network [OSTI]

    Godoy-Diana, Ramiro; Centeno, Mariana; Weinreb, Alexis; Thiria, Benjamin

    2015-01-01

    We study experimentally a four-winged flapping flyer with chord-wise flexible wings in a self-propelled setup. For a given physical configuration of the flyer (i.e. fixed distance between the forewing and hindwing pairs and fixed wing flexibility), we explore the kinematic parameter space constituted by the flapping frequency and the forewing-hindwing phase lag. Cruising speed and consumed electric power measurements are performed for each point in the $(f,\\varphi)$ parameter space and allow us to discuss the problem of performance and efficiency in four-winged flapping flight. We show that different phase-lags are needed for the system to be optimised for fastest flight or lowest energy consumption. A conjecture of the underlying mechanism is proposed in terms of the coupled dynamics of the forewing-hindwing phase lag and the deformation kinematics of the flexible wings.

  19. The radiation protection problems of high altitude and space flight

    SciTech Connect (OSTI)

    Fry, R.J.M.

    1993-04-01

    This paper considers the radiation environment in aircraft at high altitudes and spacecraft in low earth orbit and in deep space and the factors that influence the dose equivalents. Altitude, latitude and solar cycle are the major influences for flights below the radiation belts. In deep space, solar cycle and the occurrence of solar particle events are the factors of influence. The major radiation effects of concern are cancer and infertility in males. In high altitude aircraft the radiation consists mainly of protons and neutrons, with neutrons contributing about half the equivalent dose. The average dose rate at altitudes of transcontinental flights that approach the polar regions are greater by a factor of about 2.5 than on routes at low latitudes. Current estimates of does to air crews suggest they are well within the ICRP (1990) recommended dose limits for radiation workers.

  20. The radiation protection problems of high altitude and space flight

    SciTech Connect (OSTI)

    Fry, R.J.M.

    1993-01-01

    This paper considers the radiation environment in aircraft at high altitudes and spacecraft in low earth orbit and in deep space and the factors that influence the dose equivalents. Altitude, latitude and solar cycle are the major influences for flights below the radiation belts. In deep space, solar cycle and the occurrence of solar particle events are the factors of influence. The major radiation effects of concern are cancer and infertility in males. In high altitude aircraft the radiation consists mainly of protons and neutrons, with neutrons contributing about half the equivalent dose. The average dose rate at altitudes of transcontinental flights that approach the polar regions are greater by a factor of about 2.5 than on routes at low latitudes. Current estimates of does to air crews suggest they are well within the ICRP (1990) recommended dose limits for radiation workers.

  1. Parameters’ Covariance in Neutron Time of Flight Analysis – Explicit Formulae

    SciTech Connect (OSTI)

    Odyniec, M.; Blair, J.

    2014-12-01

    We present here a method that estimates the parameters’ variance in a parametric model for neutron time of flight (NToF). The analytical formulae for parameter variances, obtained independently of calculation of parameter values from measured data, express the variances in terms of the choice, settings, and placement of the detector and the oscilloscope. Consequently, the method can serve as a tool in planning a measurement setup.

  2. NASA's Marshall Space Flight Center Improves Cooling System Performance

    SciTech Connect (OSTI)

    2011-02-22

    National Aeronautics and Space Administration’s (NASA) Marshall Space Flight Center (MSFC) has a longstanding sustainability program that revolves around energy and water efficiency as well as environmental protection. MSFC identified a problematic cooling loop with six separate compressor heat exchangers and a history of poor efficiency. The facility engineering team at MSFC partnered with Flozone Services, Incorporated to implement a comprehensive water treatment platform to improve the overall efficiency of the system.

  3. Time-of-flight direct recoil ion scattering spectrometer

    DOE Patents [OSTI]

    Krauss, A.R.; Gruen, D.M.; Lamich, G.J.

    1994-09-13

    A time-of-flight direct recoil and ion scattering spectrometer beam line is disclosed. The beam line includes an ion source which injects ions into pulse deflection regions and separated by a drift space. A final optics stage includes an ion lens and deflection plate assembly. The ion pulse length and pulse interval are determined by computerized adjustment of the timing between the voltage pulses applied to the pulsed deflection regions. 23 figs.

  4. Two-dimensional Insect Flight on an Air-Water Interface is a Chaotic Oscillator

    E-Print Network [OSTI]

    Mukundarajan, Haripriya; Prakash, Manu

    2014-01-01

    Two-dimensional flapping wing insect flight on an air-water interface provides a successful foraging strategy to explore an ecological niche on the surface of a pond. However, the complex interplay of surface tension, aerodynamic forces, biomechanics and neural control that enables two-dimensional flight is unknown. Here we report the discovery of two-dimensional flight in the waterlily beetle Galerucella nymphaeae, which is the fastest reported propulsion mode for an insect on a fluid interface. Using kinematics derived from high-speed videography coupled with analytical models, we demonstrate that two-dimensional flight is a chaotic interfacial oscillator, thus significantly constraining the possible range of flight parameters. Discovery of this complex dynamics in two-dimensional flight on time scales similar to neural responses indicates the challenge of evolving active flight control on a fluid interface.

  5. Visualization of vibration experienced in offshore platforms

    E-Print Network [OSTI]

    Patrikalakis, Alexander Marinos Charles

    2010-01-01

    In this thesis, I design and evaluate methods to optimize the visualization of vortex-induced vibration (VIV) in marine risers. VIV is vibration experienced by marine risers in offshore drilling platforms due to ocean ...

  6. Isochords: Visualizing Structure in Music Tony Bergstrom

    E-Print Network [OSTI]

    Isochords is a visualization of music that aids in the classification of musical structure. The Isochords of digital music. Isochords offers listeners a means to grasp the underlying structure of music that, without

  7. Data visualization in the first person

    E-Print Network [OSTI]

    DeCamp, Philip (Philip James)

    2013-01-01

    This dissertation will examine what a first person viewpoint means in the context of data visualization and how it can be used for navigating and presenting large datasets. Recent years have seen rapid growth in Big Data ...

  8. Flexible Visual Authoring Using Operation History

    E-Print Network [OSTI]

    Su, Sara

    Flexible Visual Authoring Using Operation History Sara Su Massachusetts Institute of Technology l Revisiting history Storing and retrieving state Hierarchical authoring Grouping, structure, selections #12;Operations and selections today Uses of history System activity logs, instrumentation (not our focus

  9. Collaboration Topics - Visualization | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    Toolkit (VTK), which forms the basis of our customized visualization and analysis tools (ParaView, VisIt and LOVE). We are partnering on common VTK needs and working on...

  10. Context-based Visual Feedback Recognition

    E-Print Network [OSTI]

    Morency, Louis-Philippe

    2006-11-15

    During face-to-face conversation, people use visual feedback (e.g.,head and eye gesture) to communicate relevant information and tosynchronize rhythm between participants. When recognizing visualfeedback, people often rely ...

  11. Enhanced Reality Visualization in a Surgical Environment

    E-Print Network [OSTI]

    Mellor, J.P.

    1995-01-01

    Enhanced reality visualization is the process of enhancing an image by adding to it information which is not present in the original image. A wide variety of information can be added to an image ranging from hidden ...

  12. A study of temporal visual composition

    E-Print Network [OSTI]

    Sun, Xiaohua, 1972-

    2007-01-01

    With the rapid growth of digital art, the temporal dimension is becoming a more and more important aspect of visual creations. This thesis is an effort to contribute to the construction of a disciplined basis for the ...

  13. Explaining data in visual analytic systems

    E-Print Network [OSTI]

    Wu, Eugene, Ph. D. Massachusetts Institute of Technology

    2015-01-01

    Data-driven decision making and data analysis has grown in both importance and availability in the past decade, and has seen increasing acceptance in the broader population. Visual tools are needed to help non-technical ...

  14. Tailored displays to compensate for visual aberrations

    E-Print Network [OSTI]

    Pamplona, Vitor F.

    We introduce tailored displays that enhance visual acuity by decomposing virtual objects and placing the resulting anisotropic pieces into the subject's focal range. The goal is to free the viewer from needing wearable ...

  15. Scientific Data Processing and Visualization Software Company

    E-Print Network [OSTI]

    Delene, David J.

    Scientific Data Processing and Visualization Software Company Dr. David J. Delene Department #12;The Solution ­ Proper Software Open-source software environment designed to provide scientifically Develop prototype of the Software House. Cloud-based environment. Virtual Machines. Assessment

  16. Altered Development of Visual Subcortical Projections Following

    E-Print Network [OSTI]

    Finlay, Barbara L.

    Altered Development of Visual Subcortical Projections Following Neonatal Thalamic Ablation increases connectivity by stabilizing an exuberant develop- mental projection, we examined the normal projection zones and show progressive growth within these zones. At no time during development do projections

  17. Generative modeling of dynamic visual scenes

    E-Print Network [OSTI]

    Lin, Dahua, Ph. D. Massachusetts Institute of Technology

    2012-01-01

    Modeling visual scenes is one of the fundamental tasks of computer vision. Whereas tremendous efforts have been devoted to video analysis in past decades, most prior work focuses on specific tasks, leading to dedicated ...

  18. Comparison of open source visual analytics toolkits.

    SciTech Connect (OSTI)

    Crossno, Patricia Joyce; Harger, John R.

    2010-11-01

    We present the results of the first stage of a two-stage evaluation of open source visual analytics packages. This stage is a broad feature comparison over a range of open source toolkits. Although we had originally intended to restrict ourselves to comparing visual analytics toolkits, we quickly found that very few were available. So we expanded our study to include information visualization, graph analysis, and statistical packages. We examine three aspects of each toolkit: visualization functions, analysis capabilities, and development environments. With respect to development environments, we look at platforms, language bindings, multi-threading/parallelism, user interface frameworks, ease of installation, documentation, and whether the package is still being actively developed.

  19. Framework for a visual energy use system 

    E-Print Network [OSTI]

    McDonald, Christopher Ernest

    2009-06-02

    The goals of this research include developing and identifying software technologies, which facilitate the use of buildings described in Building Information Modeling (BIM) tools in both a simulation and visualization. The ...

  20. Heat pipe transient measurements incorporating visual methods 

    E-Print Network [OSTI]

    DeHart, Mark David

    1986-01-01

    !!CE December 1986 Major Subject: 1'uclear Eng nearing HEAT PIPE TRANSIENT MEASUREMENTS INCORPORATING VISUAL METHODS A Thesis by MARK DAVID DeHART Approved as to style and content by: Frederick R. Best (Chairman of Committee) Carl A. Erdman (Member... ) Dennis L. O'Neal (Member) K. L. Peddicord (Head of Department) December 1986 ABSTRACT Heat Pipe Transient Measurements Incorporating Visual Methods. (December 1986) Mark David DeHar t, B. S. , Texas A&M University Chairman of Advisory Committee...

  1. Visualizing roadmaps: A design-driven approach

    E-Print Network [OSTI]

    Kerr, Clive; Phaal, Robert

    2015-06-08

    -up discussions, communication graphics must be carefully developed to distill “the main elements of the strategic plan into a simple high-level visual representation” (Blackwell et al. 2008, p. 128). Applied as a strategic lens – that is, a condensed high... . The presentational layer defines the aesthetic style for the final communication graphic; this is where the rough sketch becomes a polished, attractive image. This dual-layer construction reflects Dyrud and Worley’s (2006) view of visual design for business...

  2. A Computer Program to Visualize Gravitational Lenses

    E-Print Network [OSTI]

    Francisco Frutos-Alfaro

    2014-06-12

    Gravitational lenses are presently playing an important role in astrophysics. By means of these lenses the parameters of the deflector such as its mass, ellipticity, etc. and Hubble's constant can be determined. Using C, Xforms, Mesa and Imlib a computer program to visualize this lens effect has been developed. This program has been applied to generate sequences of images of a source object and its corresponding images. It has also been used to visually test different models of gravitational lenses.

  3. In-situ model analysis of STARS missile flight data and comparison to per-flight predictions from test-reconciled models

    SciTech Connect (OSTI)

    James, G.H.; Carne, T.G.; Marek, E.L.

    1994-08-01

    The Natural Excitation Technique (NExT) was used to analyze STARS launch data during first and second stage flight using telemetered acceleration data. A continuous track of modal frequencies and modal damping was acquired for the first and second elastic modes of the system during first stage flight and for the first mode during second stage flight. Generally, the first mode was predicted to be lower than seen in actual flight. The second mode predictions were very close to those seen in flight. Damping values were found to be within the range estimated by ground testing or slightly less. The results from this modal analysis of launch data allowed a final quantification of the inherent bias errors which resulted from the STARS ground-based modal tests as well as pointing out structures which were in need of further test/analysis correlation.

  4. Visualization of time-dependent seismic vector fields with glyphs

    E-Print Network [OSTI]

    McQuinn, Emmett

    2010-01-01

    tensor fields in geomechanics. Visualization Conference,single timestep of a geomechanics simulation. Glyph geometry

  5. Spiegel -A Visualization System for Dense Stellar Systems

    E-Print Network [OSTI]

    Bischof, Hans-Peter

    - body simulations of dense stellar systems. The visualization system al- lows ex- ploring the simulation

  6. Spatiotemporal Saliency: Towards a Hierarchical Representation of Visual Saliency

    E-Print Network [OSTI]

    these mechanisms [2], repro- ducing certain behavioral observations related to visual search, but the precise

  7. Visualization and Analysis in Support of Fusion Science

    SciTech Connect (OSTI)

    Sanderson, Allen R.

    2012-10-01

    This report summarizes the results of the award for “Visualization and Analysis in Support of Fusion Science.” With this award our main efforts have been to develop and deploy visualization and analysis tools in three areas 1) magnetic field line analysis 2) query based visualization and 3) comparative visualization.

  8. Many of the behaviors exhibited by flying insects are mediated visually. For example, insects rely on complex visual

    E-Print Network [OSTI]

    Daniel, Tom

    on complex visual processing (i) to maintain their orientation with respect to the retinal panorama (Collett

  9. Visual Field Maps, Population Receptive Field Sizes, and Visual Field Coverage in the Human MT Complex

    E-Print Network [OSTI]

    Dumoulin, Serge O.

    of processing in human motion-selective cortex. I N T R O D U C T I O N Neuroimaging experiments localize human by additional experiments. Defining human MT based on stimulus selectivity means that the identificationVisual Field Maps, Population Receptive Field Sizes, and Visual Field Coverage in the Human MT

  10. Geological Visualization Tools and Structural Geology Geologists use several visualization tools to understand rock outcrop

    E-Print Network [OSTI]

    Li, X. Rong

    Geological Visualization Tools and Structural Geology Geologists use several visualization tools to understand rock outcrop relationships, regional patterns and subsurface geology in 3D and 4D. Geological maps to studying geologic maps. Cross sections are vertical "slices" into the earth that are used to interpret

  11. Navigating nuclear science: Enhancing analysis through visualization

    SciTech Connect (OSTI)

    Irwin, N.H.; Berkel, J. van; Johnson, D.K.; Wylie, B.N.

    1997-09-01

    Data visualization is an emerging technology with high potential for addressing the information overload problem. This project extends the data visualization work of the Navigating Science project by coupling it with more traditional information retrieval methods. A citation-derived landscape was augmented with documents using a text-based similarity measure to show viability of extension into datasets where citation lists do not exist. Landscapes, showing hills where clusters of similar documents occur, can be navigated, manipulated and queried in this environment. The capabilities of this tool provide users with an intuitive explore-by-navigation method not currently available in today`s retrieval systems.

  12. Visual Matrix Clustering of Social Networks

    SciTech Connect (OSTI)

    Wong, Pak C.; Mackey, Patrick S.; Foote, Harlan P.; May, Richard A.

    2013-07-01

    The prevailing choices to graphically represent a social network in today’s literature are a node-link graph layout and an adjacency matrix. Both visualization techniques have unique strengths and weaknesses when applied to different domain applications. In this article, we focus our discussion on adjacency matrix and how to turn the matrix-based visualization technique from merely showing pairwise associations among network actors (or graph nodes) to depicting clusters of a social network. We also use node-link layouts to supplement the discussion.

  13. Linear electronic field time-of-flight ion mass spectrometers

    DOE Patents [OSTI]

    Funsten, Herbert O. (Los Alamos, NM)

    2010-08-24

    Time-of-flight mass spectrometer comprising a first drift region and a second drift region enclosed within an evacuation chamber; a means of introducing an analyte of interest into the first drift region; a pulsed ionization source which produces molecular ions from said analyte of interest; a first foil positioned between the first drift region and the second drift region, which dissociates said molecular ions into constituent atomic ions and emits secondary electrons; an electrode which produces secondary electrons upon contact with a constituent atomic ion in second drift region; a stop detector comprising a first ion detection region and a second ion detection region; and a timing means connected to the pulsed ionization source, to the first ion detection region, and to the second ion detection region.

  14. Initial Results from the ANITA 2006-2007 Balloon Flight

    SciTech Connect (OSTI)

    Gorham, P.W.; Allison, P.; Barwick, S.W.; Beatty, J.J.; Besson, D.Z.; Binns, W.R.; Chen, C.; Chen, P.; Clem, J.M.; Connolly, A.; Dowkontt, P.F.; DuVernois, M.A.; Field, R.C.; Goldstein, D.; Goodhue, A.; Hast, C.; Hebert, C.L.; Hoover, S.; Israel, M.H.; Kowalski, J.; Learned, J.G.; /Hawaii U. /Caltech, JPL /Hawaii U. /Minnesota U. /Hawaii U. /Ohio State U. /Hawaii U. /Hawaii U. /UC, Irvine /Taiwan, Natl. Taiwan U. /Caltech, JPL /SLAC /University Coll. London /Ohio State U. /SLAC /Hawaii U. /Hawaii U. /Hawaii U. /UCLA /Delaware U. /Hawaii U. /SLAC /Taiwan, Natl. Taiwan U. /UC, Irvine

    2011-11-16

    We report initial results of the Antarctic Impulsive Transient Antenna (ANITA) 2006-2007 Long Duration Balloon flight, which searched for evidence of the flux of cosmogenic neutrinos. ANITA flew for 35 days looking for radio impulses that might be due to the Askaryan effect in neutrino-induced electromagnetic showers within the Antarctic ice sheets. In our initial high-threshold robust analysis, no neutrino candidates are seen, with no physics background. In a non-signal horizontal-polarization channel, we do detect 6 events consistent with radio impulses from extensive air showers, which helps to validate the effectiveness of our method. Upper limits derived from our analysis now begin to eliminate the highest cosmogenic neutrino models.

  15. Physics Results From Alpha Magnetic Spectrometer 1998 Shuttle Flight

    E-Print Network [OSTI]

    Ming-Huey A. Huang

    2001-04-13

    The Alpha Magnetic Spectrometer (AMS) is a particle detector designed to detect antimatter. During the 10-day test flight on the space shuttle in June 1998, AMS detected $10^8$ events. Upon analysis, no antimatter was found and the antimatter limit was reduced to $1.1\\times10^{-6}$. The proton spectrum shows some differences with the cosmic ray flux used in atmospheric neutrino simulation. A large amount of protons, positrons, and electrons were found below the geomagnetic rigidity cutoff. The energy of these particles are as high as several GeV, one order of magnitude higher than any previously measured energy in radiation belts. These particles also exhibit many interesting features. This paper reviews the results in the four published papers of the AMS collaboration and provides explanation for some features of the albedo particles.

  16. A Compact Nuclear Fusion Reactor for Space Flights

    SciTech Connect (OSTI)

    Nastoyashchiy, Anatoly F. [SRC Troitsk Institute for Innovation and Fusion Research, TRINITI 142190 Troitsk Moscow Reg. (Russian Federation)

    2006-05-02

    A small-scale nuclear fusion reactor is suggested based on the concepts of plasma confinement (with a high pressure gas) which have been patented by the author. The reactor considered can be used as a power setup in space flights. Among the advantages of this reactor is the use of a D3He fuel mixture which at burning gives main reactor products -- charged particles. The energy balance considerably improves, as synchrotron radiation turn out 'captured' in the plasma volume, and dangerous, in the case of classical magnetic confinement, instabilities in the direct current magnetic field configuration proposed do not exist. As a result, the reactor sizes are quite suitable (of the order of several meters). A possibility of making reactive thrust due to employment of ejection of multiply charged ions formed at injection of pellets from some adequate substance into the hot plasma center is considered.

  17. Inverse time-of-flight spectrometer for beam plasma research

    SciTech Connect (OSTI)

    Yushkov, Yu. G., E-mail: yuyushkov@gmail.com; Zolotukhin, D. B.; Tyunkov, A. V. [Tomsk State University of Control Systems and Radioelectronics, 40 Lenin Ave., Tomsk 634050 (Russian Federation); Oks, E. M. [Tomsk State University of Control Systems and Radioelectronics, 40 Lenin Ave., Tomsk 634050 (Russian Federation); Institute of High Current Electronics SB RAS, 2/3, Akademichesky Ave., Tomsk 634055 (Russian Federation); Savkin, K. P. [Institute of High Current Electronics SB RAS, 2/3, Akademichesky Ave., Tomsk 634055 (Russian Federation)

    2014-08-15

    The paper describes the design and principle of operation of an inverse time-of-flight spectrometer for research in the plasma produced by an electron beam in the forevacuum pressure range (5–20 Pa). In the spectrometer, the deflecting plates as well as the drift tube and the primary ion beam measuring system are at high potential with respect to ground. This provides the possibility to measure the mass-charge constitution of the plasma created by a continuous electron beam with a current of up to 300 mA and electron energy of up to 20 keV at forevacuum pressures in the chamber placed at ground potential. Research results on the mass-charge state of the beam plasma are presented and analyzed.

  18. Highly charged ion based time of flight emission microscope

    DOE Patents [OSTI]

    Barnes, Alan V. (Livermore, CA); Schenkel, Thomas (San Francisco, CA); Hamza, Alex V. (Livermore, CA); Schneider, Dieter H. (Livermore, CA); Doyle, Barney (Albuquerque, NM)

    2001-01-01

    A highly charged ion based time-of-flight emission microscope has been designed, which improves the surface sensitivity of static SIMS measurements because of the higher ionization probability of highly charged ions. Slow, highly charged ions are produced in an electron beam ion trap and are directed to the sample surface. The sputtered secondary ions and electrons pass through a specially designed objective lens to a microchannel plate detector. This new instrument permits high surface sensitivity (10.sup.10 atoms/cm.sup.2), high spatial resolution (100 nm), and chemical structural information due to the high molecular ion yields. The high secondary ion yield permits coincidence counting, which can be used to enhance determination of chemical and topological structure and to correlate specific molecular species.

  19. Thermal soaring flight of birds and unmanned aerial vehicles

    E-Print Network [OSTI]

    Ákos, Zsuzsa; Leven, Severin; Vicsek, Tamás; 10.1088/1748-3182/5/4/045003

    2010-01-01

    Thermal soaring saves much energy, but flying large distances in this form represents a great challenge for birds, people and Unmanned Aerial Vehicles (UAVs). The solution is to make use of so-called thermals, which are localized, warmer regions in the atmosphere moving upwards with a speed exceeding the descent rate of birds and planes. Saving energy by exploiting the environment more efficiently is an important possibility for autonomous UAVs as well. Successful control strategies have been developed recently for UAVs in simulations and in real applications. This paper first presents an overview of our knowledge of the soaring flight and strategy of birds, followed by a discussion of control strategies that have been developed for soaring UAVs both in simulations and applications on real platforms. To improve the accuracy of simulation of thermal exploitation strategies we propose a method to take into account the effect of turbulence. Finally we propose a new GPS independent control strategy for exploiting...

  20. Flight Measurements of the Aero-Optical Environment Around a Flat-Windowed Turret

    E-Print Network [OSTI]

    Gordeyev, Stanislav

    Flight Measurements of the Aero-Optical Environment Around a Flat-Windowed Turret Chris Porter.2514/1.J052067 This paper discusses the aero-optical environment for a flat-window hemisphere-on-cylinder turret over a wide range of viewing angles during flight tests in the Airborne Aero-Optics Laboratory

  1. RESULTS AND DISCUSSION Part II AH-1G ROTOR IN LOW SPEED DESCENT FLIGHT

    E-Print Network [OSTI]

    ;5.1 Details of the Flight Test A flight test of the AH-1G helicopter was performed at NASA Ames Research and Acoustics Test (TAAT) was conducted on an AH-1G Cobra. It used highly instrumented rotor blades collected from a few pressure ports on the blade. Several calculations for this helicopter have been

  2. FLIGHT SIMULATION FOR THE DEVELOPMENT OF AN EXPERIMENTAL UAV Eric N. Johnson* and Sumit Mishra

    E-Print Network [OSTI]

    Johnson, Eric N.

    FLIGHT SIMULATION FOR THE DEVELOPMENT OF AN EXPERIMENTAL UAV Eric N. Johnson* and Sumit Mishra Uninhabited Aerial Vehicle (UAV) system. These types of UAV systems are characterized by the need for the need by complementing research results with flight-test validated simulation results for the same experimental UAV

  3. Sex-specific development of avian flight performance under experimentally altered

    E-Print Network [OSTI]

    starling, flight ability, predation risk, sexual size dimorphism. [Behav Ecol 18:967­973 (2007)] In birds for variation in flight perfor- mance in juvenile European starlings (Sturnus vulgaris), a sexually size-dimorphic conditions in sexually size-dimorphic species. Key words: development, escape perfor- mance, european

  4. Formal Modeling and Verification of Operational Flight Program in a Small-Scale Unmanned Helicopter

    E-Print Network [OSTI]

    Formal Modeling and Verification of Operational Flight Program in a Small-Scale Unmanned Helicopter helicopter and its onboard embedded computing system for flight control and real-time transmission and application services for an unmanned helicopter. It will be used for responding to disasters such as forest

  5. AFRL TRB & SRB SUPPLEMENT 3 Aug 07 Review of DRE technology and flight

    E-Print Network [OSTI]

    1 AFRL ­ TRB & SRB SUPPLEMENT 3 Aug 07 Review of DRE technology and flight experiments at Rec = 7;2 AFRL ­ TRB & SRB SUPPLEMENT 3 Aug 07 OUTLINE · Highlights from ASU wind-tunnel exp · Texas A&M flight experiments (AFRL/AFOSR) · Ongoing work #12;3 AFRL ­ TRB & SRB SUPPLEMENT 3 Aug 07 Highlights from ASU wind

  6. Design of an Optimal Flight Control System with Integral Augmented Compensator for a Nonlinear UAV Helicopter

    E-Print Network [OSTI]

    Li, Yangmin

    Design of an Optimal Flight Control System with Integral Augmented Compensator for a Nonlinear UAV presents the development of an optimal flight control system for a small-scale Unmanned Aerial Vehicle (UAV and the controller design. In this work, the comprehensive nonlinear model of the helicopter system is derived from

  7. LSPE Qualification and Flight Acceptance T /V Test Su.m..mary and Thermal Design

    E-Print Network [OSTI]

    Rathbun, Julie A.

    LSPE Qualification and Flight Acceptance T /V Test Su.m..mary and Thermal Design Final Report NO. ATM 1110 This ATM Summarizes the analytical and test results of the Lunar Seismic Profiling Experiment summarizes the Qualification and Flight Acceptance thermal vacuum testing programs and the third section

  8. Weakly Ionized Plasmas in Hypersonics: Fundamental Kinetics and Flight Applications

    SciTech Connect (OSTI)

    Macheret, Sergey

    2005-05-16

    The paper reviews some of the recent studies of applications of weakly ionized plasmas to supersonic/hypersonic flight. Plasmas can be used simply as means of delivering energy (heating) to the flow, and also for electromagnetic flow control and magnetohydrodynamic (MHD) power generation. Plasma and MHD control can be especially effective in transient off-design flight regimes. In cold air flow, nonequilibrium plasmas must be created, and the ionization power budget determines design, performance envelope, and the very practicality of plasma/MHD devices. The minimum power budget is provided by electron beams and repetitive high-voltage nanosecond pulses, and the paper describes theoretical and computational modeling of plasmas created by the beams and repetitive pulses. The models include coupled equations for non-local and unsteady electron energy distribution function (modeled in forward-back approximation), plasma kinetics, and electric field. Recent experimental studies at Princeton University have successfully demonstrated stable diffuse plasmas sustained by repetitive nanosecond pulses in supersonic air flow, and for the first time have demonstrated the existence of MHD effects in such plasmas. Cold-air hypersonic MHD devices are shown to permit optimization of scramjet inlets at Mach numbers higher than the design value, while operating in self-powered regime. Plasma energy addition upstream of the inlet throat can increase the thrust by capturing more air (Virtual Cowl), or it can reduce the flow Mach number and thus eliminate the need for an isolator duct. In the latter two cases, the power that needs to be supplied to the plasma would be generated by an MHD generator downstream of the combustor, thus forming the 'reverse energy bypass' scheme. MHD power generation on board reentry vehicles is also discussed.

  9. Visual Analytics at the Pacific Northwest

    E-Print Network [OSTI]

    the laboratory and around the world--including statisticians, machine vision experts, modelers, and domain portfolio analysis, energy grid reliability, environmental safety, training, and law enforcement. #12;FOCUS Laboratory Consortium Excellence in Technology Transfer awards for their visual approaches to text analysis

  10. Natural Language Processing! and Text Visualization"

    E-Print Network [OSTI]

    Sarkar, Anoop

    ! * i247: Information Visualization and Presentation by Marti Hearst! #12;Text is not pre manufacture! ­ The effects of NAFTA on productivity of truck manufacture in the neighbouring cities of El Paso house either?'! ­ kynässänsäkäänkö `not in his pen either?'! · English phrase structure! ­ It is likely

  11. Interacting with Layered Physical Visualizations on Tabletops

    E-Print Network [OSTI]

    Visualizations; Digital Fabricaton; Interactive Surfaces ACM Classification Keywords H.5.m. Information objects to support a direct engagement with the digital world. These physical objects either represent digital objects Copyright is held by the author/owner(s). TEI 2014, Feb 16 ­ 19, 2014, Munich, Germany

  12. Creating and Visualizing Fuzzy Document Classification

    E-Print Network [OSTI]

    Fink, Eugene

    Creating and Visualizing Fuzzy Document Classification Judith Gelernter Dong Cao Raymond Lu Eugene@cs.cmu.edu Abstract--Fuzzy classification ranks items by degree rather than assigning them either within or without of a category. The novelty of our work is in integrating fuzzy classification algorithms with an interface

  13. Visualizing 1D Regression David J. Olive

    E-Print Network [OSTI]

    Olive, David

    Visualizing 1D Regression David J. Olive Abstract. Regression is the study of the conditional distribution of the re- sponse y given the predictors x. In a 1D regression, y is independent of x given a single linear combination T x of the predictors. Special cases of 1D regression include multiple linear

  14. Simulation and Visualization of Nanodiamond and Nanographite

    E-Print Network [OSTI]

    Adler, Joan

    Simulation and Visualization of Nanodiamond and Nanographite Joan Adler, Jeremie Zaffran, Amihai] and modelled the formation of nanodiamond and nanographite[4, 5]. Together with an excellent success rate of growth and identification of nanodiamonds came the rather surprising result of nanographite formation [5

  15. VISUALIZING ELECTRONIC DOCUMENT REPOSITORIES: DRAWING BOOKS AND

    E-Print Network [OSTI]

    Rauber,Andreas

    ' are not natural selection criteria in their known environment. Even analyzing the provided metadata to #12;nd out ranking criteria, allowing users to quickly identify both the topics covered by the library, the amountVISUALIZING ELECTRONIC DOCUMENT REPOSITORIES: DRAWING BOOKS AND PAPERS IN A DIGITAL LIBRARY Andreas

  16. Visual Web Mining Amir H. Youssefi

    E-Print Network [OSTI]

    Bystroff, Chris

    Visual Web Mining Amir H. Youssefi Rensselaer Polytechnic Institute 110 Eight St. Troy, NY 12180 Rensselaer Polytechnic Institute 110 Eight St. Troy, NY 12180 zaki@cs.rpi.edu ABSTRACT Analysis of web site of the web, and secondly, the structural complexity of web sites. In this paper we apply Data Mining

  17. Visualization of Conflict Networks Ulrik BRANDES a

    E-Print Network [OSTI]

    Brandes, Ulrik

    additional insights into the data. As a matter of fact, conflicts among large sets of political actors do inconsistent datasets. We propose a method for the visualization of conflict networks that show a set of actors involved actors, re- veals the opposing groups, provides a graphic overview of the conflict structure

  18. Visual Tool for Generative Programming Pavel Grigorenko

    E-Print Network [OSTI]

    Grigorenko, Pavel

    of Cybernetics Tallinn University of Technology Akadeemia tee 21 12618 Tallinn, Estonia +372 6204212 ando@cs.ioc.ee Enn Tyugu Institute of Cybernetics Tallinn University of Technology Akadeemia tee 21 12618 TallinnVisual Tool for Generative Programming Pavel Grigorenko Institute of Cybernetics Tallinn University

  19. Active Visual Scene Exploration Eric Sommerlade

    E-Print Network [OSTI]

    Oxford, University of

    of its gaze direction. Quantitative and qualitative validation show the increase in performance whenActive Visual Scene Exploration Eric Sommerlade Brasenose College D.Phil. Thesis Supervised by Dr Term 2010 This thesis is submitted to the Department of Engineering Science, University of Oxford

  20. Visualization of Ant Pheromone Based Path Following 

    E-Print Network [OSTI]

    Sutherland, Benjamin T.

    2010-07-14

    This thesis develops a simulation and visualization of a path finding algorithm based on ant pheromone paths created in 3D space. The simulation is useful as a demonstration of a heuristic approach to NP-complete problems and as an educational tool...

  1. Visual Exploration of Uncertainty in Remotesensing Classification

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Visual Exploration of Uncertainty in Remote­sensing Classification Frans J.M. van der Wel Utrecht analysis of remotely­sensed data aims at acquiring insight as to the stability of possible classifications for an overwhelming flow of data on the appearance and condition of our planet. The data yielded by remote sensing can

  2. Interactive Visualization of Remote Sensing Data

    E-Print Network [OSTI]

    Blanz, Volker

    Interactive Visualization of Remote Sensing Data Interaktive Visualisierung von Fernerkundungsdaten alterungsbeständigem holz- und säurefreiem Papier. #12;Abstract Remote Sensing is an important tool for the analysis and spaceborne Remote Sensing systems produce a rapidly growing number of data sets, and improvements in sensor

  3. Cardiogram: Visual Analytics for Automotive Engineers

    E-Print Network [OSTI]

    Cardiogram: Visual Analytics for Automotive Engineers Michael Sedlmair1, Petra Isenberg2, Dominikus that sup- ports automotive engineers in debugging masses of traces each consisting of millions of recorded-critical networks to be error-free has become a major task and challenge for automotive engi- neers. To overcome

  4. Research Article Visual Control of Action Without

    E-Print Network [OSTI]

    Loomis, Jack M.

    almost always entails retinal flow, research on the physiology of optic-flow processing has invari- ablyResearch Article Visual Control of Action Without Retinal Optic Flow Jack M. Loomis,1 Andrew C a field of obstacles and catching a ball, entails retinal flow with motion energy (first-order motion). We

  5. Microwave imaging reflectometry for the visualization of turbulence in tokamaks

    E-Print Network [OSTI]

    Mazzucato, Ernesto

    Microwave imaging reflectometry for the visualization of turbulence in tokamaks E. Mazzucato describes the results of an extensive numerical study of microwave reflectometry in tokamaks showing scheme for the global visualization of turbulent fluctuations in tokamaks is described. 1. Introduction

  6. Visual communication of mood through an establishing shot 

    E-Print Network [OSTI]

    Thirunarayanan, Radhika

    2006-04-12

    Visual storytelling has come a long way since primitive man began creating colorful, narrative cave paintings. In this new age of technology, motion pictures have become a prevalent medium for visual storytelling throughout the developed world...

  7. 3D Visualization of Water Transport in Ferns

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

    3D Visualization of Water Transport in Ferns 3D Visualization of Water Transport in Ferns Print Monday, 08 April 2013 00:00 Plants transport water through elongated cells called...

  8. Temporally Scalable Visual SLAM using a Reduced Pose Graph

    E-Print Network [OSTI]

    Johannsson, Hordur

    2012-05-25

    In this paper, we demonstrate a system for temporally scalable visual SLAM using a reduced pose graph representation. Unlike previous visual SLAM approaches that use keyframes, our approach continually uses new measurements ...

  9. Interactive musical visualization based on emotional and color theory 

    E-Print Network [OSTI]

    Bowens, Karessa Natee

    2009-05-15

    Influenced by synesthesia, the creators of such ‘visual musics’ as abstract art, color organs, abstract film, and most recently visualizers, have attempted to illustrate correspondences between the senses. This thesis ...

  10. Discovering structure of data to create multiple perspective visualization

    E-Print Network [OSTI]

    Li, Yao, 1978-

    2004-01-01

    The goal of visualization is to help human understand, reason, and learn better and quicker. In pursuit of this goal, this thesis presents an architecture for intelligent visualization systems, which supports multiple ...

  11. Temporally scalable visual SLAM using a reduced pose graph

    E-Print Network [OSTI]

    Johannsson, Hordur

    In this paper, we demonstrate a system for temporally scalable visual SLAM using a reduced pose graph representation. Unlike previous visual SLAM approaches that maintain static keyframes, our approach uses new measurements ...

  12. Visual Experience and Motor Action: Are The Bonds Too Tight? 

    E-Print Network [OSTI]

    Clark, Andy

    2001-01-01

    How should we characterize the functional role of conscious visual experience? In particular, how do the conscious contents of visual experience guide, bear upon, or otherwise inform our ongoing motor activities? According ...

  13. Visualization and Analysis of 3D Gene Expression Data (Technical...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Visualization and Analysis of 3D Gene Expression Data Citation Details In-Document Search Title: Visualization and Analysis of 3D Gene Expression Data You are...

  14. VisPortal: Deploying grid-enabled visualization tools through...

    Office of Scientific and Technical Information (OSTI)

    VisPortal: Deploying grid-enabled visualization tools through a web-portal interface Citation Details In-Document Search Title: VisPortal: Deploying grid-enabled visualization...

  15. Visual-based methods in compliant mechanism optimization

    E-Print Network [OSTI]

    Timm, Richard W. (Richard William)

    2006-01-01

    The purpose of this research is to generate visual-based methods for optimizing compliant mechanisms (CMs). Visual-based optimization methods use graphical representations (3-D plots) of CM performance to convey design ...

  16. The Contribution of the Magnocellular Visual Pathway to the Process of Visual Word Recognition 

    E-Print Network [OSTI]

    Thomson, Jacqueline

    2007-01-01

    Previous research on visual word recognition has uncovered a variety of factors which influence how easily this process is achieved. Some factors are intrinsic to the word itself (e.g., length, frequency, regularity) and ...

  17. Borges y el cine: imaginería visual y estrategia creativa

    E-Print Network [OSTI]

    Zavaleta Balarezo, Jorge

    2010-01-01

    cine: imaginería visual y estrategia creativa Jorge ZavaletaBertolucci (Por ejemplo, La estrategia de la araña, en base

  18. 7 Key Challenges for Visualization in Cyber Network Defense

    SciTech Connect (OSTI)

    Best, Daniel M.; Endert, Alexander; Kidwell, Dan

    2014-12-02

    In this paper we present seven challenges, informed by two user studies, to be considered when developing a visualization for cyber security purposes. Cyber security visualizations must go beyond isolated solutions and “pretty picture” visualizations in order to make impact to users. We provide an example prototype that addresses the challenges with a description of how they are met. Our aim is to assist in increasing utility and adoption rates for visualization capabilities in cyber security.

  19. A flight test system for the determination of the stability and control derivatives of a general aviation aircraft 

    E-Print Network [OSTI]

    Oehl, David Christopher

    1995-01-01

    This volume documents the research effort which provided a flight test system and flight data to determine the stability and control derivatives for the Rockwell Commander N700AE aircraft. The presented research was conducted from June 1994 to May...

  20. Sensing Super-position: Visual Instrument Sensor Replacement

    E-Print Network [OSTI]

    Maluf, David A.

    1 Sensing Super-position: Visual Instrument Sensor Replacement David A. Maluf 650-604-0611 David human vision through Sensing Super-position using a Visual Instrument Sensory Organ Replacement (VISOR instruments into sounds, which become relevant when the visual resolution is insufficient for very difficult

  1. Applications of Texture-Based Flow Visualization Robert S. Laramee

    E-Print Network [OSTI]

    and meteorology, computational fluid dynamics (CFD) in the automo- tive industry, and medicine. We describe visualization, vector field visualization, texture, computational fluid dynamics (CFD), meteorology@visus.uni-stuttgart.de Figure 1: The visualization of swirl motion at the inner boundary surface of a combustion chamber from

  2. Visual-Feedback Distortion in a Robotic Rehabilitation

    E-Print Network [OSTI]

    Klatzky, Roberta

    INVITED P A P E R Visual-Feedback Distortion in a Robotic Rehabilitation Environment In a finger-motion rehabilitation trial, where a patient presses against robot resistance, progress can be aided by visual feedback Matsuoka ABSTRACT | We create a robotic rehabilitation environment that distorts the visual feedback

  3. IEEE Symposium on Visual Languages, Seattle, 1992 Dominoes and Storyboards

    E-Print Network [OSTI]

    for visual programming languages have adhered to a set pattern: fixed pictures symbolizing program components visual programming languages are "icons on strings" The dream of visual programming has been to replace textual programming languages as the medium through which computers are instructed with a language

  4. May 2009 Edition Copyright ITT Visual Information Solutions

    E-Print Network [OSTI]

    Wu, Shiliang

    May 2009 Edition Copyright © ITT Visual Information Solutions All Rights Reserved Installation to the restrictions stated in the license agreement. ITT Visual Information Solutions reserves the right to make. SMACC. Copyright © 2000-2004, Spectral Sciences, Inc. and ITT Visual Information Solutions. All rights

  5. Multidimensional structured data visualization method and apparatus, text visualization method and apparatus, method and apparatus for visualizing and graphically navigating the world wide web, method and apparatus for visualizing hierarchies

    DOE Patents [OSTI]

    Risch, John S. (Kennewick, WA); Dowson, Scott T. (West Richland, WA); Hart, Michelle L. (Richland, WA); Hatley, Wes L. (Kennewick, WA)

    2008-05-13

    A method of displaying correlations among information objects comprises receiving a query against a database; obtaining a query result set; and generating a visualization representing the components of the result set, the visualization including one of a plane and line to represent a data field, nodes representing data values, and links showing correlations among fields and values. Other visualization methods and apparatus are disclosed.

  6. Multidimensional structured data visualization method and apparatus, text visualization method and apparatus, method and apparatus for visualizing and graphically navigating the world wide web, method and apparatus for visualizing hierarchies

    DOE Patents [OSTI]

    Risch, John S. (Kennewick, WA); Hart, Michelle L. (Richland, WA); Dowson, Scott T. (West Richland, WA)

    2012-03-06

    A method of displaying correlations among information objects includes receiving a query against a database; obtaining a query result set; and generating a visualization representing the components of the result set, the visualization including one of a plane and line to represent a data field, nodes representing data values, and links showing correlations among fields and values. Other visualization methods and apparatus are disclosed.

  7. Scatterplot3d an R package for Visualizing Multivariate Data

    E-Print Network [OSTI]

    Gotelli, Nicholas J.

    Scatterplot3d ­ an R package for Visualizing Multivariate Data Uwe Ligges and Martin M Software: Ligges, U. and M¨achler, M. (2003): Scatterplot3d ­ an R Package for Visualizing Multivariate for the visualization of multivariate data in a three dimensional space. R is a "language for data analysis and graphics

  8. Using Interactive Design Activity Visualizations for Supporting Collaborative Sketching Sessions

    E-Print Network [OSTI]

    Reiterer, Harald

    limiting the control such a trained professional can have over the group activity. Figure 1. Our system combines digital pen & paper and interactive design activity visualizations. In our research, we have visualizations. Therefore, our system combines digital pen & paper tools with interactive visualizations that can

  9. Visualizing the supersonic flow around a microvortex generator

    E-Print Network [OSTI]

    Texas at Arlington, University of

    Visualizing the supersonic flow around a microvortex generator F.K. Lu, A.P. Pierce, P.J. Gonzalez, and Y. Shih 1 Introduction Fig. 1 Schematic of MVGs. Microvortex generators (MVGs) have been proposed very similar. #12;Visualizing the supersonic flow around a microvortex generator 3 2.2 Visualization

  10. Techniques for Interactive and Interrogative Scientific Volumetric Visualization Robert Haimes

    E-Print Network [OSTI]

    Peraire, Jaime

    Techniques for Interactive and Interrogative Scientific Volumetric Visualization Robert Haimes­interactive visualization environment for the investigation and interrogation of 3D volumetric sci­ entific data. First probes) which have proven to be very useful in the interrogation of volumetric data [3]. VISUAL3 allows

  11. Electronics for a Picosecond Time-of-flight Measurement

    SciTech Connect (OSTI)

    Brandt, Andrew Gerhart; Rijssenbeek, Michael

    2014-11-03

    TITLE: Electronics for a Picosecond Time-of-flight Measurement ABSTRACT: Time-of-flight (TOF) detectors have historically been used as part of the particle identification capability of multi-purpose particle physics detectors. An accurate time measurement, combined with a momentum measurement based on the curvature of the track in a magnetic field, is often sufficient to determine the particle's mass, and thus its identity. Such detectors typically have measured the particle flight time extremely precisely, with an uncertainty of one hundred trillionths of a second (also referred to as 100 picoseconds). To put this in perspective it would be like counting all the people on the Earth and getting it right within 1 person! Another use of TOFs is to measure the vertex of the event, which is the location along the beam line where the incoming particles (typically protons) collide. This vertex positon is a well measured quantity for events where the protons collide “head on” as the outgoing particles produced when you blast the proton apart can be used to trace back to a vertex point from which they originated. More frequently the protons just strike a glancing blow and remain intact—in this case they are nearly parallel to the beam and you cannot tell their vertex without this ability to precisely measure the time of flight of the protons. Occasionally both happen in the same event, that is, a central system and two protons are produced. But are they from the same collision, or just a boring background where more than one collision in the same bunch crossing conspire to fake the signal of interest? That’s where the timing of the protons comes into play. The main idea is to measure the time it takes for the two protons to reach TOF detectors positioned equidistant from the center of the main detector. If the vertex is displaced to one side than that detector will measure a shorter time while the other side detector will measure a correspondingly longer time. Taking into account the speed of the particles, which is very close to the speed of light, an accuracy of 100 ps gives a vertex measurement of a few cm or a little more than an inch. At the Large Hadron Collider, where there are up to a hundred billion protons per bunch, and the collision region is compressed to a few inches, that is just not good enough. A higher level of precision is needed to determine whether the vertex of the protons and that of the central system are the same. A factor 10 improvement in the timing measurement to the 10 trillionths of a second level, for example would give the requisite 10 times improvement in the vertex measurement. An accurate measurement of the flight time depends on three key elements: the radiator that produces light when the proton passes through it, the photo-sensor that converts the light to an electrical signal, and the electronics that convert this electrical signal into a time measurement with a compact recordable format. With recent improvements in detector design featuring a series of quartz radiators connected to a micro-channel plate photomultiplier tube, this superior measurement capability is within reach if the readout electronics are sufficiently performant. As a result of the funding of this proposal, we have achieved our primary goals. 1) We have developed from scratch or improved upon existing designs of the full chain of electronics that can maintain the performance of a TOF detector from the output of the photo-sensor to the recording of a compressed data packet containing the timing information. We have accomplished this with a cost effective modular approach such that some or all of the components in the chain could easily be adapted for use in diverse particle physics experiments or in other areas where precise timing is required, such as medical and homeland security devices.

  12. Seeing and Visualizing: It's not what you think Zenon Pylyshyn 8/30/2006 i

    E-Print Network [OSTI]

    Pylyshyn, Zenon

    ? ................................................................................1-3 1.3.1 The richness of visual appearances and the poverty of visual information

  13. Visualizations for Real-time Pricing Demonstration

    SciTech Connect (OSTI)

    Marinovici, Maria C.; Hammerstrom, Janelle L.; Widergren, Steven E.; Dayley, Greg K.

    2014-10-13

    In this paper, the visualization tools created for monitoring the operations of a real-time pricing demonstration system that runs at a distribution feeder level are presented. The information these tools provide gives insights into demand behavior from automated price responsive devices, distribution feeder characteristics, impact of weather on system’s development, and other significant dynamics. Given the large number of devices that bid into a feeder-level real-time electricity market, new techniques are explored to summarize the present state of the system and contrast that with previous trends as well as future projections. To better understand the system behavior and correctly inform decision-making procedures, effective visualization of the data is imperative.

  14. Topological Cacti: Visualizing Contour-based Statistics

    SciTech Connect (OSTI)

    Weber, Gunther H.; Bremer, Peer-Timo; Pascucci, Valerio

    2011-05-26

    Contours, the connected components of level sets, play an important role in understanding the global structure of a scalar field. In particular their nestingbehavior and topology-often represented in form of a contour tree-have been used extensively for visualization and analysis. However, traditional contour trees onlyencode structural properties like number of contours or the nesting of contours, but little quantitative information such as volume or other statistics. Here we use thesegmentation implied by a contour tree to compute a large number of per-contour (interval) based statistics of both the function defining the contour tree as well asother co-located functions. We introduce a new visual metaphor for contour trees, called topological cacti, that extends the traditional toporrery display of acontour tree to display additional quantitative information as width of the cactus trunk and length of its spikes. We apply the new technique to scalar fields ofvarying dimension and different measures to demonstrate the effectiveness of the approach.

  15. Vision of a Visualization Tool for Commissioning 

    E-Print Network [OSTI]

    Isakson, P.; Eriksson, J.

    2004-01-01

    VISUALIZATION TOOL FOR COMMISSIONING Per Isakson*, Jörgen Eriksson** * Building Sciences KTH, Stockholm SWEDEN. per.isakson@byv.kth.se ** ÅF-Installation, Göteborg, SWEDEN. jorgen.eriksson@af.se Summary. A prototype visualisation tool to display... commissioning and not the least proper operation and maintenance. Energy savings in the order of 5% to 15% may typically be realized by means of improved operation alone. This is already recognized by the industry, but several obstacles hamper a performance...

  16. A visual simulation playground for engineering dynamics 

    E-Print Network [OSTI]

    Fong, Donald Brian

    2008-10-10

    Visual display of o set from local coordinate system : : : : : : : : : 44 30 Comma-separated values in Excel : : : : : : : : : : : : : : : : : : : : 45 31 Tutorial for spring-mass system : : : : : : : : : : : : : : : : : : : : : 47 viii LIST OF TABLES... also includes user documentation and tutorials, providing users with a resource that is always available when they run into a roadblock while using the software. Figure 31 displays a screenshot of a step-by-step tutorial on how to create a spring...

  17. APPLYING SIMPLE TECHNOLOGY ACCOMPLISHES VISUAL INSPECTION CHALLENGES

    SciTech Connect (OSTI)

    Robinson, C

    2007-07-21

    This paper discusses the successful implementation of simple video technologies at the Savannah River Site (SRS) to perform complex visual inspection, monitoring, and surveillance tasks. Because SRS facilities are similar to those of an industrial plant, the environmental and accessibility considerations for remote viewing are the primary determining factors in the selection of technology. The constraints and challenges associated with remote viewing are discussed, and examples of applications are given.

  18. Visualizing Electric Vehicle Sales | 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 QA:QA J-E-1 SECTION J APPENDIX E LIST OF APPLICABLEStatutoryinEnableVisualization & Controls Program

  19. Visual Analytics for Roof Savings Calculator Ensembles

    SciTech Connect (OSTI)

    Jones, Chad [University of California, Davis] [University of California, Davis; New, Joshua Ryan [ORNL] [ORNL; Sanyal, Jibonananda [ORNL] [ORNL; Ma, Kwan-Liu [University of California, Davis] [University of California, Davis

    2012-01-01

    The Roof Savings Calculator (RSC) has been deployed for DOE as an industry-consensus, web-based tool for easily running complex building energy simulations. These simulations allow both homeowners and experts to determine building-specific cost and energy savings for modern roof and attic technologies. Using a database of over 3 million RSC simulations for different combinations of parameters, we have built a visual analytics tool to assist in the exploration and identification of features in the data. Since the database contains multiple variables, both categorical and continuous, we employ a coordinated multi-view approach that allows coordinated feature exploration through multiple visualizations at once. The main component of our system, a parallel coordinates view, has been adapted to handle large-scale, mixed data types as are found in RSC simulations. Other visualizations include map coordinated plots, high dynamic range (HDR) line plot rendering, and an intuitive user interface. We demonstrate these techniques with several use cases that have helped identify software and parametric simulation issues.

  20. Multivariate volume visualization through dynamic projections

    SciTech Connect (OSTI)

    Liu, Shusen; Wang, Bei; Thiagarajan, Jayaraman J.; Bremer, Peer -Timo; Pascucci, Valerio

    2014-11-01

    We propose a multivariate volume visualization framework that tightly couples dynamic projections with a high-dimensional transfer function design for interactive volume visualization. We assume that the complex, high-dimensional data in the attribute space can be well-represented through a collection of low-dimensional linear subspaces, and embed the data points in a variety of 2D views created as projections onto these subspaces. Through dynamic projections, we present animated transitions between different views to help the user navigate and explore the attribute space for effective transfer function design. Our framework not only provides a more intuitive understanding of the attribute space but also allows the design of the transfer function under multiple dynamic views, which is more flexible than being restricted to a single static view of the data. For large volumetric datasets, we maintain interactivity during the transfer function design via intelligent sampling and scalable clustering. As a result, using examples in combustion and climate simulations, we demonstrate how our framework can be used to visualize interesting structures in the volumetric space.

  1. Radial velocities of southern visual multiple stars

    SciTech Connect (OSTI)

    Tokovinin, Andrei; Pribulla, Theodor; Fischer, Debra E-mail: pribulla@ta3.sk

    2015-01-01

    High-resolution spectra of visual multiple stars were taken in 2008–2009 to detect or confirm spectroscopic subsystems and to determine their orbits. Radial velocities of 93 late-type stars belonging to visual multiple systems were measured by numerical cross-correlation. We provide the individual velocities, the width, and the amplitude of the Gaussians that approximate the correlations. The new information on the multiple systems resulting from these data is discussed. We discovered double-lined binaries in HD 41742B, HD 56593C, and HD 122613AB, confirmed several other known subsystems, and constrained the existence of subsystems in some visual binaries where both components turned out to have similar velocities. The orbits of double-lined subsystems with periods of 148 and 13 days are computed for HD 104471 Aa,Ab and HD 210349 Aa,Ab, respectively. We estimate individual magnitudes and masses of the components in these triple systems and update the outer orbit of HD 104471 AB.

  2. Visual probes and methods for placing visual probes into subsurface areas

    DOE Patents [OSTI]

    Clark, Don T.; Erickson, Eugene E.; Casper, William L.; Everett, David M.

    2004-11-23

    Visual probes and methods for placing visual probes into subsurface areas in either contaminated or non-contaminated sites are described. In one implementation, the method includes driving at least a portion of a visual probe into the ground using direct push, sonic drilling, or a combination of direct push and sonic drilling. Such is accomplished without providing an open pathway for contaminants or fugitive gases to reach the surface. According to one implementation, the invention includes an entry segment configured for insertion into the ground or through difficult materials (e.g., concrete, steel, asphalt, metals, or items associated with waste), at least one extension segment configured to selectively couple with the entry segment, at least one push rod, and a pressure cap. Additional implementations are contemplated.

  3. Model of medical supply demand and astronaut health for long-duration human space flight

    E-Print Network [OSTI]

    Assad, Albert

    2009-01-01

    The medical care of space crews is the primary limiting factor in the achievement of long-duration space missions. (Nicogossian 2003) The goal of this thesis was to develop a model of long-duration human space flight ...

  4. Quantifying Peptides in Isotopically Labeled Protease Digests by Ion Mobility/Time-of-Flight

    E-Print Network [OSTI]

    Clemmer, David E.

    Quantifying Peptides in Isotopically Labeled Protease Digests by Ion Mobility/Time-of-Flight Mass-terminus can be accomplished by digesting proteins in 18O-labeled water,11-20 resulting in incorpora- tion

  5. Measurement of the Translational Energy of Ions with a Time?of?Flight Mass Spectrometer

    E-Print Network [OSTI]

    Franklin, J. L.; Hierl, Peter M.; Whan, David A.

    1967-01-01

    A mathematical analysis of peak shapes in a Bendix time?of?flight mass spectrometer shows that ions formed with excess translational energy exhibit considerable peak broadening. A method is developed by which this translational ...

  6. Quantifying the Impact of Flight Predictability on Strategic and Operational Airline Decisions

    E-Print Network [OSTI]

    Hao, Lu

    2015-01-01

    55 Table 4.1 Estimation Results for Fuel Upliftfor an flight, termed fuel uplift, is a much more delicatewith the effect of fuel uplift on fuel burn, suggests a

  7. Fractal morphology, imaging and mass spectrometry of single aerosol particles in flight (CXIDB ID 16)

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

    Loh, N. Duane

    2012-06-20

    This deposition includes the aerosol diffraction images used for phasing, fractal morphology, and time-of-flight mass spectrometry. Files in this deposition are ordered in subdirectories that reflect the specifics.

  8. Wireless Stimulation of Antennal Muscles in Freely Flying Hawkmoths Leads to Flight Path Changes

    E-Print Network [OSTI]

    Hinterwirth, Armin J.

    Insect antennae are sensory organs involved in a variety of behaviors, sensing many different stimulus modalities. As mechanosensors, they are crucial for flight control in the hawkmoth Manduca sexta. One of their roles ...

  9. Wind Tunnel and Flight Testing of Active Flow Control on a UAV 

    E-Print Network [OSTI]

    Babbar, Yogesh

    2011-08-08

    Active flow control has been extensively explored in wind tunnel studies but successful in-flight implementation of an active flow control technology still remains a challenge. This thesis presents implementation of active flow control technology...

  10. Intelligent executive guidance agent for general aviation aircraft under free flight 

    E-Print Network [OSTI]

    Rong, Jie

    2002-01-01

    situation within this environment occurs when multiple traffic and weather conflicts arise simultaneously. A solution that forms the basis for this thesis is an agent based hierarchical system that attempts to provide optimal and conflict free flight path...

  11. FIBER-OPTIC PRESSURE SENSOR FOR TIME-OF-FLIGHT MEASUREMENTS IN A SHOCK WAVE

    E-Print Network [OSTI]

    Texas at Arlington, University of

    temperatures as encountered in combustors. To ensure high-temperature survivability, such sensors may be bonded the pressure pulse and the time-of-flight (TOF) of a propagating detonation wave for implementation shock tubes

  12. Fractal morphology, imaging and mass spectrometry of single aerosol particles in flight (CXIDB ID 16)

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

    Loh, N. Duane

    This deposition includes the aerosol diffraction images used for phasing, fractal morphology, and time-of-flight mass spectrometry. Files in this deposition are ordered in subdirectories that reflect the specifics.

  13. Physically-based aerodynamic flight of birds: an interactive approach to behavioral flocking 

    E-Print Network [OSTI]

    Ringham, Michael Lynn

    1996-01-01

    This thesis describes a method for simulating the flight of birds in a flock with the use of physically-based aerodynamics. The resulting flocking behavior dramatically improves on results previously obtained in computer graphics and animation...

  14. Airline alliance revenue management : improving joint revenues through partner sharing of flight leg opportunity costs

    E-Print Network [OSTI]

    Michel, Alyona

    2012-01-01

    Airlines participating in alliances offer code share itineraries (with flight segments operated by different partners) to expand the range of origin-destination combinations offered to passengers, thus increasing market ...

  15. The REgolith X-ray Imaging Spectrometer flight model : structural design, analysis, and testing

    E-Print Network [OSTI]

    Carte, David Brad

    2015-01-01

    Engineers of space flight programs face unique technical challenges created by the space environment in which these systems operate. High costs and increasing complexity of space programs create a greater demand for mission ...

  16. Guidance and control using model predictive control for low altitude real-time terrain following flight

    E-Print Network [OSTI]

    Lapp, Tiffany Rae, 1979-

    2004-01-01

    This thesis presents the design and implementation of a model predictive control based trajectory optimization method for Nap-of-the-Earth (NOE) flight. A NOE trajectory reference is generated over a subspace of the terrain. ...

  17. Stability derivative extraction from flight test data for a general aviation aircraft 

    E-Print Network [OSTI]

    Randall, Brian Edward

    1996-01-01

    inputs compared well with the flight test data. However, the modeled response to an aileron input did not emulate the aircraft response since the models produced adverse rather than proverse yaw. In general, the stability derivatives and flying qualities...

  18. Control, estimation, and planning algorithms for aggressive flight using onboard sensing

    E-Print Network [OSTI]

    Bry, Adam Parker

    2012-01-01

    This thesis is motivated by the problem of fixed-wing flight through obstacles using only on-board sensing. To that end, we propose novel algorithms in trajectory generation for fixed-wing vehicles, state estimation in ...

  19. Poster Abstract: Practical Limits of WiFi Time-of-Flight Echo Techniques

    E-Print Network [OSTI]

    Lenders, Vincent

    Giustiniano Institute IMDEA Networks Madrid, Spain domenico.giustiniano@imdea.org Vincent Lenders Armasuisse Thun, Switzerland vincent.lenders@armasuisse.ch Abstract--Time-of-flight echo techniques have been

  20. Strain and particle size of palladium powders by time-of-flight neutron diffraction

    SciTech Connect (OSTI)

    Lawson, A.C.; Conant, J.W.; Talcott, C.L.; David, M.A.; Vaninetti, J.; Goldstone, J.A.; Williams, A.; Von Dreele, R.B.; Roof, R.B.; Hitterman, R.L.; Richardson, J.W. Jr.; Faber, J. Jr.

    1989-01-01

    We have determined the strain and particle size for several samples of palladium powder by time-of-flight neutron powder diffraction on two different diffractometers and by x-ray powder diffraction. The results are compared and found to be in fair agreement. The time-of-flight method gives good enough precision to reveal deficiencies in the simple models used for strain and particle size line broadening. 6 refs., 4 figs., 2 tabs.

  1. Flight to Quality? An Investigation of Changing Price Spreads in Commercial Real Estate Markets

    E-Print Network [OSTI]

    Fuerst, Franz; McAllister, Patrick; Sivitanides, Petros

    2015-01-01

    were positively correlated. However, supporting the flight- to-quality hypothesis they also found evidence that, in some “extreme” situations, this relationship turned negative. Hartmann, Straetmans and de Vries (2004), found that flight of capital... . (1989) The Motivation for Institutional Real Estate Sales and Implications for Asset Class Returns, AREUEA Journal, 17, 1, 70- 82 Hartmann, P. S. Straetmans and C. G. De Vries. 2004. Asset Market Linkages in Crisis Periods. The Review of Economics...

  2. The Flight Spectral Response of the ACIS Instrument

    E-Print Network [OSTI]

    Paul P. Plucinsky; Norbert S. Schulz; Herman L. Marshall; Catherine E. Grant; George Chartas; Divas Sanwal; Marcus A. Teter; Alexey A. Vikhlinin; Richard J. Edgar; Michael W. Wise; Glenn E. Allen; Shanil N. Virani; Joseph M. DePasquale; Michael T. Raley

    2002-09-24

    We discuss the flight calibration of the spectral response of the Advanced CCD Imaging Spectrometer (ACIS) on-board the Chandra X-ray Observatory (CXO). The spectral resolution and sensitivity of the ACIS instrument have both been evolving over the course of the mission. The spectral resolution of the frontside-illuminated (FI) CCDs changed dramatically in the first month of the mission due to radiation damage. Since that time, the spectral resolution of the FI CCDs and the backside-illuminated (BI) CCDs have evolved gradually with time. We demonstrate the efficacy of charge-transfer inefficiency (CTI) correction algorithms which recover some of the lost performance. The detection efficiency of the ACIS instrument has been declining throughout the mission, presumably due to a layer of contamination building up on the filter and/or CCDs. We present a characterization of the energy dependence of the excess absorption and demonstrate software which models the time dependence of the absorption from energies of 0.4 keV and up. The spectral redistribution function and the detection efficiency are well-characterized at energies from 1.5 to 8.0 keV. The calibration at energies below 1.5 keV is challenging because of the lack of strong lines in the calibration source and also because of the inherent non-linear dependence with energy of the CTI and the absorption by the contamination layer. We have been using data from celestial sources with relatively simple spectra to determine the quality of the calibration below 1.5 keV. The analysis of these observations demonstrate that the CTI correction recovers a significant fraction of the spectral resolution of the FI CCDs and the models of the time-dependent absorption result in consistent measurements of the flux at low energies for data from a BI (S3) CCD.

  3. Visual Patent Search | 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.,Turin,Village of Wellington,FL LLC Jump to: navigation,West,Visual

  4. Visualization of information with an established order

    DOE Patents [OSTI]

    Wong, Pak Chung (Richland, WA); Foote, Harlan P. (Richmond, WA); Thomas, James J. (Richland, WA); Wong, Kwong-Kwok (Sugar Land, TX)

    2007-02-13

    Among the embodiments of the present invention is a system including one or more processors operable to access data representative of a biopolymer sequence of monomer units. The one or more processors are further operable to establish a pattern corresponding to at least one fractal curve and generate one or more output signals corresponding to a number of image elements each representative of one of the monomer units. Also included is a display device responsive to the one or more output signals to visualize the biopolymer sequence by displaying the image elements in accordance with the pattern.

  5. Watching Traffic for an Anomaly: Data Visualization

    E-Print Network [OSTI]

    Patwari, Neal

    -generated map -20 -15 -10 -5 0 5 10 15 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 ATLA CHIN DNVR HSTN IPLS KSCY LOSA NYCM SNVA STTL WASH -20 -15 -10 -5 0 5 10 15 20 -8 -6 -4 -2 0 2 4 6 8 10 ATLA CHIN DNVR HSTN IPLS KSCY LOSA [1] Plonka, D. "FlowScan: A Network Traffic Flow Reporting and Visualization Tool". In Proc. LISA

  6. Sequential pattern data mining and visualization

    DOE Patents [OSTI]

    Wong, Pak Chung (Richland, WA); Jurrus, Elizabeth R. (Kennewick, WA); Cowley, Wendy E. (Benton City, WA); Foote, Harlan P. (Richland, WA); Thomas, James J. (Richland, WA)

    2011-12-06

    One or more processors (22) are operated to extract a number of different event identifiers therefrom. These processors (22) are further operable to determine a number a display locations each representative of one of the different identifiers and a corresponding time. The display locations are grouped into sets each corresponding to a different one of several event sequences (330a, 330b, 330c. 330d, 330e). An output is generated corresponding to a visualization (320) of the event sequences (330a, 330b, 330c, 330d, 330e).

  7. Sequential pattern data mining and visualization

    DOE Patents [OSTI]

    Wong, Pak Chung (Richland, WA); Jurrus, Elizabeth R. (Kennewick, WA); Cowley, Wendy E. (Benton City, WA); Foote, Harlan P. (Richland, WA); Thomas, James J. (Richland, WA)

    2009-05-26

    One or more processors (22) are operated to extract a number of different event identifiers therefrom. These processors (22) are further operable to determine a number a display locations each representative of one of the different identifiers and a corresponding time. The display locations are grouped into sets each corresponding to a different one of several event sequences (330a, 330b, 330c. 330d, 330e). An output is generated corresponding to a visualization (320) of the event sequences (330a, 330b, 330c, 330d, 330e).

  8. Visual Patent Search - 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 WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopmentat LENA|UpcomingVisit Us Download theVisual Patent Search

  9. Visual Patent Search Tool - 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 WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopmentat LENA|UpcomingVisit Us Download theVisual Patent

  10. Visualization Clusters | Argonne Leadership Computing Facility

    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 ofDidDevelopmentat LENA|UpcomingVisit Us Download theVisual

  11. Visualizing Brain Metals in Health and Disease

    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 WithTelecentricN A CountyFeet) CooleyVisitorVisualizing Brain

  12. Web-based Visual Analytics for Extreme Scale Climate Science

    SciTech Connect (OSTI)

    Steed, Chad A [ORNL; Evans, Katherine J [ORNL; Harney, John F [ORNL; Jewell, Brian C [ORNL; Shipman, Galen M [ORNL; Smith, Brian E [ORNL; Thornton, Peter E [ORNL; Williams, Dean N. [Lawrence Livermore National Laboratory (LLNL)

    2014-01-01

    In this paper, we introduce a Web-based visual analytics framework for democratizing advanced visualization and analysis capabilities pertinent to large-scale earth system simulations. We address significant limitations of present climate data analysis tools such as tightly coupled dependencies, ineffi- cient data movements, complex user interfaces, and static visualizations. Our Web-based visual analytics framework removes critical barriers to the widespread accessibility and adoption of advanced scientific techniques. Using distributed connections to back-end diagnostics, we minimize data movements and leverage HPC platforms. We also mitigate system dependency issues by employing a RESTful interface. Our framework embraces the visual analytics paradigm via new visual navigation techniques for hierarchical parameter spaces, multi-scale representations, and interactive spatio-temporal data mining methods that retain details. Although generalizable to other science domains, the current work focuses on improving exploratory analysis of large-scale Community Land Model (CLM) and Community Atmosphere Model (CAM) simulations.

  13. 2011 IEEE Visualization Contest Winner: Visualizing Unsteady Vortical Behavior of a

    E-Print Network [OSTI]

    , 2 Kaust ABSTRACT This work summarizes our results analyzing a centrifugal pump for the IEEE Visualization Contest 2011. The given data set represents a high resolution simulation of a centrifugal pump resolution simulations using different turbulence models of a centrifugal pump used to transport liquids

  14. Subcellular Topography of Visually Driven Dendritic Activity in the Vertebrate Visual System

    E-Print Network [OSTI]

    Engert, Florian

    Neuron Article Subcellular Topography of Visually Driven Dendritic Activity in the Vertebrate+ signals are heterogeneously distributed and topographi- cally biased across a developing dendritic tree to stimulus space. A possible topography of dendritic Ca2+ signaling may reflect the anatomical map

  15. Towards a Visual Perception System for Pipe Inspection: Monocular Visual Odometry

    E-Print Network [OSTI]

    , pipe crawler, visual odometry #12;Abstract Liquid Natural Gas (LNG) processing facilities contain large in LNG pipes include Magnetic Flux Leakage (MFL), radiography (X-rays), and ultrasound among others wall thickness over time the rate of corrosion can be estimated. For LNG pipes, unlike large mainstream

  16. 2006 VASDS Workshop Proceedings Re-Visualization: Interactive Visualization of the Process

    E-Print Network [OSTI]

    Klippel, Alexander

    power of geographic visualization, it remains difficult for users of these tools to save, re-use, or re save basic data and layout settings. Since the interactivity of geovisualization is so critical to its. Low-level state changes are collected during analysis and saved into sessions. These sessions can

  17. A Novel Visualization Technique for Electric Power Grid Analytics

    SciTech Connect (OSTI)

    Wong, Pak C.; Schneider, Kevin P.; Mackey, Patrick S.; Foote, Harlan P.; Chin, George; Guttromson, Ross T.; Thomas, James J.

    2009-05-01

    The application of information visualization holds tremendous promise for the electric power industry, and yet its potential has not been sufficiently exploited by the visualization community. Prior work on visualizing electric power systems has been limited to depicting raw or processed information on top of a geographic layout. Little effort has been devoted to maximize the analytical strengths naturally gained by the visualization itself. This paper introduces a visualization system prototype, known as GreenGrid, that explores the planning and monitoring of the North American Electricity Infrastructure. For the purposes of visualization, the power infrastructure can be described as a network of nodes and links. The nodes represent the electrical buses where generators and loads are connected, while the links represent the transmission lines that interconnect the buses. This paper focuses mainly on a customized technique within GreenGrid that is designed to visually identify abnormal characteristics of the electricity infrastructure. In particular, we examine an extreme event that occurred within the Western United States power grid on August 10, 1996. We compare our study results with the conclusion of the post-disturbance analysis and find that many of the disturbance characteristics can be readily identified with the proper form of visualization. The paper includes a lessons learned discussion to evaluate the visualization application.

  18. Visualizing the Behavior of Polar Domains and Screening Charges...

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

    Visualizing the Behavior of Polar Domains and Screening Charges Under Electric and Mechanical Fields Event Sponsor: Mathematics and Computing Science - LANS Seminar Start Date: Sep...

  19. Visualization of Fuel Cell Water Transport and Performance Characteriz...

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

    Characterization under Freezing Conditions Visualization of Fuel Cell Water Transport and Performance Characterization under Freezing Conditions Part of a 100 million...

  20. 9.036 The Visual System, Spring 2003

    E-Print Network [OSTI]

    Schiller, Peter H.

    The organization of the mammalian visual system and the manner in which shape, color, texture, motion, and depth are processed. Alternate years.

  1. A Nano-visualization software for education and research

    E-Print Network [OSTI]

    Oetting, Lillian C; Raza, Hassan

    2015-01-01

    We report the development of a user-friendly nano-visualization software program which can acquaint high-school students with nanotechnology. The visual introduction to atoms and molecules, which are the building blocks of this technology, is an effective way to introduce the key concepts in this area. The software's graphical user interface enables multidimensional atomic visualization by using ball and stick schematics. Additionally, the software provides the option of wavefunction visualization for arbitrary nanomaterials and nanostructures by using extended Huckel theory. The software is instructive, application oriented and may be useful not only in high school education but also for the undergraduate research and teaching.

  2. Visualization of Electric Power System Information: Workshop Proceedings

    SciTech Connect (OSTI)

    Kroposki, B.; Komomua, C.

    2013-01-01

    This report summarizes the workshop entitled: Visualization of Electric Power System Information. The workshop was held on September 11, 2012 on NREL's campus in Golden, Colorado.

  3. Capturing and Using Knowledge about the Use of Visualization Toolkits

    SciTech Connect (OSTI)

    Del Rio, Nicholas R.; Pinheiro da Silva, Paulo

    2012-11-02

    When constructing visualization pipelines using toolkits such as Visualization Toolkit (VTK) and Generic Mapping Tools (GMT), developers must understand (1) what toolkit operators will transform their data from its raw state to some required view state and (2) what viewers are available to present the generated view. Traditionally, developers learn about how to construct visualization pipelines by reading documentation and inspecting code examples, which can be costly in terms of the time and effort expended. Once an initial pipeline is constructed, developers may still have to undergo a trial and error process before a satisfactory visualization is generated. This paper presents the Visualization Knowledge Project (VisKo) that is built on a knowledge base of visualization toolkit operators and how they can be piped together to form visualization pipelines. Developers may now rely on VisKo to guide them when constructing visualization pipelines and in some cases, when VisKo has complete knowledge about some set of operators (i.e., sequencing and parameter settings), automatically generate a fully functional visualization pipeline.

  4. VISMASHUP: streamlining the creation of custom visualization applications

    SciTech Connect (OSTI)

    Ahrens, James P; Santos, Emanuele; Lins, Lauro; Freire, Juliana; Silva, Cl'audio T

    2010-01-01

    Visualization is essential for understanding the increasing volumes of digital data. However, the process required to create insightful visualizations is involved and time consuming. Although several visualization tools are available, including tools with sophisticated visual interfaces, they are out of reach for users who have little or no knowledge of visualization techniques and/or who do not have programming expertise. In this paper, we propose VISMASHUP, a new framework for streamlining the creation of customized visualization applications. Because these applications can be customized for very specific tasks, they can hide much of the complexity in a visualization specification and make it easier for users to explore visualizations by manipulating a small set of parameters. We describe the framework and how it supports the various tasks a designer needs to carry out to develop an application, from mining and exploring a set of visualization specifications (pipelines), to the creation of simplified views of the pipelines, and the automatic generation of the application and its interface. We also describe the implementation of the system and demonstrate its use in two real application scenarios.

  5. Visualizing Assembling Everything (2010 JGI/ANL HPC Workshop)

    ScienceCinema (OSTI)

    Jaffe, David; Gnerre, Sante

    2011-06-08

    David Jaffe and Sante Gnerre of the Broad Institute give a presentation on "Visualizing assembling everything" at the JGI/Argonne HPC Workshop on January 25, 2010.

  6. WSN-based Intelligent Visual Performance Management in Tropical Buildings

    E-Print Network [OSTI]

    Edwin, Chan; Szu Cheng, Chien; Boon-Hee, Soong; King Jet, Tseng

    2014-01-01

    Lin, and Y. C. Tseng, “A WSN-based intelligent light controlWSN-based Intelligent Visual Performance Management inprototypical implementation of WSN-based daylight-responsive

  7. Automatic Performance Visualization of Distributed Real-time systems

    E-Print Network [OSTI]

    Harmon, Trevor; Klefstad, Raymond

    2006-01-01

    Automatic Performance Visualization of Distributed Real-Timepro?l- ing tools with automatic instrumentation and dataprocedure was not entirely automatic be- cause, as explained

  8. JColorGrid: software for the visualization of biological measurements.

    E-Print Network [OSTI]

    Joachimiak, Marcin P; Weisman, Jennifer L; May, Barnaby Ch

    2006-01-01

    BMC Bioinformatics Software BioMed CentralOpen Access JColorGrid: software for the visualization oftraditional statistical software packages. The effectiveness

  9. Linking Advanced Visualization and MATLAB for the Analysis of...

    Office of Scientific and Technical Information (OSTI)

    about the spatial and temporal expression of genes in early Drosophila embryos at cellular resolution. The BDTNP team visualizes and analyzes Point-Cloud data using the...

  10. Lightweight social communication using visual media and mobile phones

    E-Print Network [OSTI]

    Cowan, Lisa G.

    2011-01-01

    projected displays of mobile devices. Proc. INTERACT, pagestouch: A see-through mobile device. In Proceedings of theusing visual media and mobile devices. We considered the

  11. From Question Answering to Visual Exploration

    SciTech Connect (OSTI)

    McColgin, Dave W.; Gregory, Michelle L.; Hetzler, Elizabeth G.; Turner, Alan E.

    2006-08-11

    Research in Question Answering has focused on the quality of information retrieval or extraction using the metrics of precision and recall to judge success; these metrics drive toward finding the specific best answer(s) and are best supportive of a lookup type of search. These do not address the opportunity that users? natural language questions present for exploratory interactions. In this paper, we present an integrated Question Answering environment that combines a visual analytics tool for unstructured text and a state-of-the-art query expansion tool designed to compliment the cognitive processes associated with an information analysts work flow. Analysts are seldom looking for factoid answers to simple questions; their information needs are much more complex in that they may be interested in patterns of answers over time, conflicting information, and even related non-answer data may be critical to learning about a problem or reaching prudent conclusions. In our visual analytics tool, questions result in a comprehensive answer space that allows users to explore the variety within the answers and spot related information in the rest of the data. The exploratory nature of the dialog between the user and this system requires tailored evaluation methods that better address the evolving user goals and counter cognitive biases inherent to exploratory search tasks.

  12. Visual Analytics for Power Grid Contingency Analysis

    SciTech Connect (OSTI)

    Wong, Pak C.; Huang, Zhenyu; Chen, Yousu; Mackey, Patrick S.; Jin, Shuangshuang

    2014-01-20

    Contingency analysis is the process of employing different measures to model scenarios, analyze them, and then derive the best response to remove the threats. This application paper focuses on a class of contingency analysis problems found in the power grid management system. A power grid is a geographically distributed interconnected transmission network that transmits and delivers electricity from generators to end users. The power grid contingency analysis problem is increasingly important because of both the growing size of the underlying raw data that need to be analyzed and the urgency to deliver working solutions in an aggressive timeframe. Failure to do so may bring significant financial, economic, and security impacts to all parties involved and the society at large. The paper presents a scalable visual analytics pipeline that transforms about 100 million contingency scenarios to a manageable size and form for grid operators to examine different scenarios and come up with preventive or mitigation strategies to address the problems in a predictive and timely manner. Great attention is given to the computational scalability, information scalability, visual scalability, and display scalability issues surrounding the data analytics pipeline. Most of the large-scale computation requirements of our work are conducted on a Cray XMT multi-threaded parallel computer. The paper demonstrates a number of examples using western North American power grid models and data.

  13. ORIGINAL ARTICLE Interactive visual supports for children with autism

    E-Print Network [OSTI]

    Hayes, Gillian R.

    ORIGINAL ARTICLE Interactive visual supports for children with autism Gillian R. Hayes · Sen Hirano access at Springerlink.com Abstract Interventions to support children with autism often include the use visual supports are effective in helping to diminish many of the challenges of autism, they are difficult

  14. Visual Interfaces to Digital Libraries Its Past, Present, and Future

    E-Print Network [OSTI]

    Börner, Katy

    Visual Interfaces to Digital Libraries ­ Its Past, Present, and Future Katy Börner School libraries is an integral part to the advances of digital libraries. A wide range of approaches have been in digital libraries). Generally, information visualization examines semantic relationships intrinsic

  15. An Application-Independent System for Visualizing User Operation History

    E-Print Network [OSTI]

    Igarashi, Takeo

    An Application-Independent System for Visualizing User Operation History Toshio Nakamura Department conventional interactive systems provide the user operation history only as a list of text commands. The text have been proposed. For example, the Chimera system [17] visualizes an operation history as a sequence

  16. Image Understanding Algorithms for Remote Visual Inspection of Aircraft Surfaces.

    E-Print Network [OSTI]

    Siegel, Mel

    inspection, in enhancing and recognizing surface cracks and corrosion from the live imagery of an aircraftImage Understanding Algorithms for Remote Visual Inspection of Aircraft Surfaces. Priyan Gunatilake Visual inspection is, by far, the most widely used method in aircraft surface inspection. We

  17. BLUE: An Interactive Visualization System for Categorical Data Technical Note

    E-Print Network [OSTI]

    Kerbs, R. W.

    BLUE: An Interactive Visualization System for Categorical Data Technical Note Robert W. Kerbs. This paper introduces a prototype data visualization system, BLUE, to help induce meaningful decision trees from databases that contain primarily categorical attributes. BLUE is an interactive model creation

  18. Designing visualization tools for a distributed control architecture

    E-Print Network [OSTI]

    Kortenkamp, David

    Designing visualization tools for a distributed control architecture David Kortenkamp Metrica Inc of visualization tools for debugging and validating dis- tributed autonomous systems. These tools will let as they debug their autonomous systems. Traditional software debugging tools are not designed for distributed au

  19. A Visualization Application for the Mining Industry Using Standard Tools

    E-Print Network [OSTI]

    1/1 A Visualization Application for the Mining Industry Using Standard Tools Steven J. Schafrik visualization tools for modeling an orebody, or a mining process such as loading and tramming. This is usually accomplished using commercial tools, such as mine design packages, process simulators, etc., that have a custom

  20. Visualization of Very Large Oceanography Time-Varying Volume Datasets

    E-Print Network [OSTI]

    Laidlaw, David

    Visualization of Very Large Oceanography Time-Varying Volume Datasets Sanghun Park1 , Chandrajit://grmanet.sogang.ac.kr/~ihm Abstract. This paper presents two visualization techniques suitable for huge oceanography time generated in the field of oceanography. The model has a resolution of 1/6 degree (2160 by 960 points

  1. DEVELOPING GIS VISUALIZATION WEB SERVICES FOR GEOPHYSICAL APPLICATIONS

    E-Print Network [OSTI]

    DEVELOPING GIS VISUALIZATION WEB SERVICES FOR GEOPHYSICAL APPLICATIONS A. Sayar a,b. *, M. Pierce Commission II, WG II/2 KEY WORDS: GIS, Geophysics, Visualization, Internet/Web, Interoperability, Networks Information System (GIS) community. In this paper we will describe our group's efforts to implement GIS

  2. Visualization of a fish wake using tobacco mosaic virus

    E-Print Network [OSTI]

    Bush, John W.M.

    Visualization of a fish wake using tobacco mosaic virus David L. Hu, Lucy Mendel, and Brian Chan is that it is harmless to fish, providing a safe alternative for visualizing their wakes. The black neon tetra Fig. 1 of body length 3.6 cm maintains a steady position by flicking its fins and creating vortices. The fish

  3. Visual monitoring environments, such as intrusion detection systems, debugging

    E-Print Network [OSTI]

    Erbacher, Robert F.

    Abstract Visual monitoring environments, such as intrusion detection systems, debugging Database Visualization, On-Line Monitoring 1. Introduction Most environments developed by or with the aid environments, and feature extraction systems, require that a user familiar with the target domain examine, most

  4. Visual Unit Analysis: A Descriptive Approach to Landscape Assessment1

    E-Print Network [OSTI]

    Visual Unit Analysis: A Descriptive Approach to Landscape Assessment1 R. J. Tetlow, and S. R. J are critical. The Visual Unit concept appears to offer a logical and useful framework for description and evaluation. The concept subdivides landscape into coherent, spatially-defined units. This study extends

  5. The Evolution Matrix: Recovering Software Evolution using Software Visualization Techniques

    E-Print Network [OSTI]

    Lanza, Michele

    The Evolution Matrix: Recovering Software Evolution using Software Visualization Techniques Michele - ABSTRACT One of the major problems in software evolution is coping with the complexity which stems from and effective way to visualize the evolution of software systems which helps to recover the evolution of object

  6. New Developments in Surface Oil Flow Visualization Adam J. Pierce,

    E-Print Network [OSTI]

    Texas at Arlington, University of

    over 10 s. Some investigators prefer kerosene which evaporates rapidly in the low pressure environmentNew Developments in Surface Oil Flow Visualization Adam J. Pierce, Frank K. Lu, Daniel S. Bryant imaging and image processing for studying flows is extended to surface oil flow visualization. The use

  7. Expressive Visualization and Rapid Interpretation of Seismic Volumes

    E-Print Network [OSTI]

    Expressive Visualization and Rapid Interpretation of Seismic Volumes Daniel Patel Thesis, Christopher Giertsen, John Thurmond, Eduard Gr¨oller The Seismic Analyzer: Interpreting and Illustrating 2D of Seismic Data Published in: Vision, Modelling and Visualization (VMV) 2007 Authors: Daniel Patel

  8. Comparing Effects of Different Cinematic Visualization Strategies on Viewer Comprehension

    E-Print Network [OSTI]

    Young, R. Michael

    environment. As we know from our experiences as film-watchers, cinema is a powerful and effective medium for constructing cinematic discourse, i.e. communication of stories through the visual medium. We evaluate for communicating stories. Few in- telligent camera systems have been built in 3D environments for effective visual

  9. The Information Mural: Increasing Information Bandwidth in Visualizations

    E-Print Network [OSTI]

    Stasko, John T.

    The Information Mural: Increasing Information Bandwidth in Visualizations Dean F. Jerding and John Abstract Information visualizations must allow users to browse information spaces and focus quickly on items of interest. Being able to see some representation of the entire information space provides

  10. Top-down facilitation of visual recognition , K. S. Kassam*

    E-Print Network [OSTI]

    Schacter, Daniel

    Top-down facilitation of visual recognition M. Bar* , K. S. Kassam*§ , A. S. Ghuman*§¶ , J. Boshyan gradually promote the role of top-down processing in recognition, but how such facilitation is triggered object recognition by initiating top-down processes projected from orbitofrontal to visual cortex

  11. Linear Utility Corridors--A Simulated Visual Field Trip1

    E-Print Network [OSTI]

    Linear Utility Corridors-- A Simulated Visual Field Trip1 Robert W. Ross, Jr. 2/ 1/ Presented utility corridors continuing to find their way across the American landscape, more and more people are becoming concerned about their ecological as well as visual impact. This paper examines "linear utility

  12. Analysis of Landscape Character for Visual Resource Management1

    E-Print Network [OSTI]

    . The systems package is based on data overlay concepts, statistical sampling of data, multiple resolutionAnalysis of Landscape Character for Visual Resource Management1 Paul F. Anderson 2/ 1/ Presented at the Conference on Applied Techniques for Analysis and Management of the Visual Resource, Incline Village, Nevada

  13. Brief article Investigating the visual span in comparative

    E-Print Network [OSTI]

    Pomplun, Marc

    , 1986; Rayner, 1998). The measurement of visual span size has been very in¯uential in reading research (e.g. McConkie & Rayner, 1975; Rayner & Bertera, 1979) and has recently been applied to visual search (Bertera & Rayner, 2000; Rayner & Fisher, 1987a,b; Reingold, Charness, Pomplun, & Stampe, 2001; see Rayner

  14. Visualizing Algorithms over the Web with the Publicationdriven Approach \\Lambda

    E-Print Network [OSTI]

    Demetrescu, Camil

    Visualizing Algorithms over the Web with the Publication­driven Approach \\Lambda Camil Demetrescu x@istel.ing.unipg.it Abstract Algorithm animation over the Web is usually realized by designing ad­hoc Java applets that provide both the implementation and the visualization of specific algorithms. This approach has several

  15. A Visualization System for Correctness Proofs of Graph Algorithms

    E-Print Network [OSTI]

    Metaxas, Takis

    A Visualization System for Correctness Proofs of Graph Algorithms P.A. Gloor1, D.B. Johnson2, F. Makedon2, P. Metaxas3 Feb. 28, 1993 Running head: Proof Visualization of Graph Algorithms Correspondence proofs of graph algorithms. The system has been demonstrated for a greedy algorithm, Prim's algorithm

  16. TextVis: An Integrated Visual Environment for Text Mining *

    E-Print Network [OSTI]

    Lindell, Yehuda

    TextVis: An Integrated Visual Environment for Text Mining * David Landau, Ronen Feldman, Yonatan University of Washington Seattle, WA zamir@cs.washington.edu Abstract. TextVis is a visual data mining system can be used to browse the collection. TextVis takes a multi­strategy approach to text mining

  17. Behavioral/Systems/Cognitive Visual Feedback Control of Hand Movements

    E-Print Network [OSTI]

    Knill, David C.

    Behavioral/Systems/Cognitive Visual Feedback Control of Hand Movements Jeffrey A. Saunders investigated what visual information contributes to on-line control of hand movements. It has been suggested.Weusedaperturbationmethod to determine the relative contributions of motion and position information to feedback control. Subjects

  18. Data Management/Visualization on the Grid at PPPL

    E-Print Network [OSTI]

    Data Management/Visualization on the Grid at PPPL Scott A. Klasky Stephane Ethier Ravi Samtaney #12;The Problem · Simulations at NERSC generate GB's ­ TB's of data. · The transfer time for practical visualization is too long. ­ Using "standard" ftp, we get 600 KB/s. ­ GTC data is over 3TB, transfer time = 2

  19. Visualization of Density Variation in Lung Aristofanes C. Silva

    E-Print Network [OSTI]

    Endler, Markus

    Visualization of Density Variation in Lung Nodules Arist´ofanes C. Silva e-mail: ari-Rio Inf.MCC09/02 June, 2002 Abstract We propose a method for visualize lung nodule, in order to emphasize, limiar. #12;1 Introduction Lung cancer is known to be the form of cancer with the smallest survival rate

  20. Visual Sensitivity of River Recreation to Power Plants1

    E-Print Network [OSTI]

    the sensitivity of river-related recreational activities to visual intrusion by large coal-fired power plants is determined for each landscape type. These visual absorption values are then mapped along the case study river The State of Minnesota anticipates the construction of a considerable number of large new coal-fired power

  1. A Parallel Visualization Pipeline for Terascale Earthquake Simulations

    E-Print Network [OSTI]

    Ma, Kwan-Liu

    A Parallel Visualization Pipeline for Terascale Earthquake Simulations Hongfeng Yu Kwan-Liu Ma welling@psc.edu ABSTRACT This paper presents a parallel visualization pipeline imple- mented earth- quake and reduce its risk to the general population. The 0 0-7695-2153-3/04 $20.00 (c)2004 IEEE

  2. Modelling the heart and visualization of simulated Roman Durikovic

    E-Print Network [OSTI]

    Durikovic, Roman

    Modelling the heart and visualization of simulated wavefronts Roman Durikovic Daming Wei Department summarizes our experience in working with an anisotropic computer heart model. We propose the heart rotating- ing of the unknown mechanisms of heart disease. Keywords: heart model, heart visualization 1

  3. A Visualization Tool for Exploratory Analysis of Cyclic Multivariate Data

    E-Print Network [OSTI]

    Ward, Matthew

    A Visualization Tool for Exploratory Analysis of Cyclic Multivariate Data MATTHEW O. WARD Worcester visualization tool for the qualita­ tive exploration of multivariate data that may exhibit cyclic or periodic behavior. Glyphs are used to encode each multivariate data point, and linear, stacked, and spiral glyph

  4. The Development of Cortical Sensitivity to Visual Word Forms

    E-Print Network [OSTI]

    Wandell, Brian A.

    The Development of Cortical Sensitivity to Visual Word Forms Michal Ben-Shachar1,2 , Robert F. Dougherty1 , Gayle K. Deutsch1 , and Brian A. Wandell1 Abstract The ability to extract visual word forms longitudinal fMRI study to chart individual changes in cortical sensitivity to written words as reading de

  5. Deconstructing and Restyling D3 Visualizations Jonathan Harper

    E-Print Network [OSTI]

    O'Brien, James F.

    . of her webpage. A viewer might prefer to view a pie chart in the form of a bar chart so that it is easier. Author Keywords Visualization, chart understanding, restyling, D3 ACM Classification Keywords H.5 of a visualization. For instance, a colorblind viewer may need to shift the red and green marks in a chart to colors

  6. A Locus in Human Extrastriate Cortex for Visual Shape Analysis

    E-Print Network [OSTI]

    Kanwisher, Nancy

    Positron emission tomography (PET)was used to locate an area in human extrastriate cortex that subserves a specific component process of visual object recognition. Regional blood flow increased in a bilateral- tional brain imaging studies using PET and fMRI have discovered areas in human visual cortex that contain

  7. ORIGINAL ARTICLE Rapid geometric modeling for visual simulation

    E-Print Network [OSTI]

    Kamat, Vineet R.

    presents a novel algorithm that enables the semi-automatic reconstruction of human-made structures (e in virtual or augmented reality visual simulations or for data acquisition in 3D geographic information building of surrounding structures in visual simulation of engineering processes. Keywords Animation Á

  8. Visualization and Computer Graphics on Isotropically Emissive Volumetric Displays

    E-Print Network [OSTI]

    Maciejewski, Ross

    Visualization and Computer Graphics on Isotropically Emissive Volumetric Displays Benjamin Mora--The availability of commodity volumetric displays provides ordinary users with a new means of visualizing 3D data on isotropically emissive volumetric displays, delivering results that are much closer to what is traditionally

  9. Mirror: Visually reflecting C{sup ++}

    SciTech Connect (OSTI)

    Orosco, R.; Campo, M.; Sole, J.P.

    1995-12-31

    Reflection is the ability of a system to inspect and change a model of itself. This ability allows to transparently control and extend the functionality of an existing system without performing any changes to the system itself. In dynamic object-oriented languages like CLOS or Smalltalk. the reflective ability is supported directly by the language. In C++, in contrast, reflection must be provided by some form of code annotation and pre-processing. In most cases, this approach either requires modification of the system code, or just supports the reflection of entire classes but not the reflection of determined objects. This work presents the Mirror environment that supports C++ reflective programming through visual association of meta-classes to classes. It allows full transparent reflection of objects using three-dimensional presentations of the different architecture levels. The environment adds reflective ability to C++ classes without any code modification visible to the user, as well as dynamically selective reflection of objects.

  10. Overview Report: Normal and Emergency Operation Visualization

    SciTech Connect (OSTI)

    Greitzer, Frank L.

    2011-05-01

    This is an overview report to document and illustrate methods used in a project entitled “Normal and Emergency Operations Visualization” for a utility company, conducted in 2009-2010 timeframe with funding from the utility company and the U.S. Department of Energy. The original final report (about 180 pages) for the project is not available for distribution because it alludes to findings that assessed the design of an operational system that contained proprietary information; this abridged version contains descriptions of methods and some findings to illustrate the approach used, while avoiding discussion of sensitive or proprietary information. The client has approved this abridged version of the report for unlimited distribution to give researchers and collaborators the benefit of reviewing the research concepts and methods that were applied in this study.

  11. Patent Overlay Mapping: Visualizing Technological Distance

    E-Print Network [OSTI]

    Kay, Luciano; Youtie, Jan; Porter, Alan L; Rafols, Ismael

    2012-01-01

    The purpose of this paper is to present a new global patent map that represents all technological categories, and a method to locate patent data of individual organizations and technological fields on the global map. This second patent overlay map technique is shown to be of potential interest to support competitive intelligence and policy decision-making. The global patent map is based on similarities in citing-to-cited relationships between categories of the International Patent Classification (IPC) of European Patent Office (EPO) patents from 2000 to 2006. This patent dataset, extracted from PatStat database, represents more than 760,000 patent records in more than 400 IPC categories. To illustrate the kind of analytical support offered by this approach, the paper shows the overlay of nanotechnology-related patenting activities of two companies and two different nanotechnology subfields on to the global patent map. The exercise shows the potential of patent overlay maps to visualize technological areas and...

  12. Multi-gap Resistive Plate Chambers as a Time-of-Flight System for the PHENIX Experiment

    SciTech Connect (OSTI)

    Velkovska, Julia

    2013-12-08

    In this project a Time-of-Flight detector based on multi-gap resistive plate chambers was built and installed for the PHENIX experiment at RHIC.

  13. Pathfinder flight of the Polarized Gamma-ray Observer (PoGOLite) in 2013

    E-Print Network [OSTI]

    Kawano, Takafumi

    2015-01-01

    The Polarized Gamma-ray Observer (PoGOLite) is a balloon-borne instrument that can measure polarization in the energy range 25--240 keV. The instrument adopts an array of well-type "phoswich" detectors in order to suppress backgrounds. Based on the anisotropy of Compton scattering angles resulting from polarized gamma-rays, the polarization of the observed source can be reconstructed. During July 12-26 of 2013, a successful near-circumpolar pathfinder flight was conducted from Esrange, Sweden, to Norilsk, Russia. During this two-week flight, several observations of the Crab were conducted. Here, we present the PoGOLite instrument and summarize the 2013 flight.

  14. Velocity-space sensitivity of the time-of-flight neutron spectrometer at JET

    SciTech Connect (OSTI)

    Jacobsen, A. S. Salewski, M.; Korsholm, S. B.; Leipold, F.; Nielsen, S. K.; Rasmussen, J.; Stejner, M.; Eriksson, J.; Ericsson, G.; Hjalmarsson, A.

    2014-11-15

    The velocity-space sensitivities of fast-ion diagnostics are often described by so-called weight functions. Recently, we formulated weight functions showing the velocity-space sensitivity of the often dominant beam-target part of neutron energy spectra. These weight functions for neutron emission spectrometry (NES) are independent of the particular NES diagnostic. Here we apply these NES weight functions to the time-of-flight spectrometer TOFOR at JET. By taking the instrumental response function of TOFOR into account, we calculate time-of-flight NES weight functions that enable us to directly determine the velocity-space sensitivity of a given part of a measured time-of-flight spectrum from TOFOR.

  15. Deep Neural Networks Rival the Representation of Primate IT Cortex for Core Visual Object Recognition

    E-Print Network [OSTI]

    Cadieu, Charles

    The primate visual system achieves remarkable visual object recognition performance even in brief presentations, and under changes to object exemplar, geometric transformations, and background variation (a.k.a. core visual ...

  16. An Overview of Visualization techniques for the Analysis of Large datasets

    E-Print Network [OSTI]

    Gorban, Alexander N.

    ://www.cs.umd.edu/hcil/ #12;Visible Human - animation #12;Information Visualization · Compact graphical presentation ­ Large: ­ animation ­ software visualisation ­ visualisation environments ­ volume rendering and visualization ­ computer graphics ­ visual programming ­ image processing ­ virtual reality ­ Scientific Visualisation

  17. The role of cartographic visualizations to improve spatial cognition in geography fieldwork

    E-Print Network [OSTI]

    The role of cartographic visualizations to improve spatial cognition in geography fieldwork cognitive gains of geography fieldwork via cartographic visualizations Investigating the usability of cartography visualizations in the three stages of geography fieldwork #12;5 The best geographical knowledge

  18. Page 1 A dedicated binding mechanism for the visual control of movement

    E-Print Network [OSTI]

    Diedrichsen, Jörn

    Page 1 A dedicated binding mechanism for the visual control of movement results therefore suggest the existence of a dedicated visuo-motor binding mechanism visual target information · A dedicated visuo-motor binding mechanism links visual

  19. THE JOURNAL OF VISUALIZATION AND COMPUTER ANIMATION J. Visual. Comput. Animat. 2003; 14: 3141 (DOI: 10.1002/vis.303)

    E-Print Network [OSTI]

    Faraway, Julian

    an authentically moving virtual human within software such as Jack3 helps the designer detect problemsTHE JOURNAL OF VISUALIZATION AND COMPUTER ANIMATION J. Visual. Comput. Animat. 2003; 14: 31­41 (DOI Introduction Motion capture technology allows the collection of databases of human motions. We can collect data

  20. Applications of the Pipeline Environment for Visual Informatics and Genomics Computations

    E-Print Network [OSTI]

    2011-01-01

    for visual informatics and genomics computations. BMCfor visual informatics and genomics computations Ivo D DinovContemporary informatics and genomics research require

  1. Applications of the pipeline environment for visual informatics and genomics computations

    E-Print Network [OSTI]

    2011-01-01

    for visual informatics and genomics computations. BMCfor visual informatics and genomics computations Ivo D DinovContemporary informatics and genomics research require

  2. Big Data Analaysis and Visualization: What Do LINACS and Tropical Storms Have In Common?

    E-Print Network [OSTI]

    Bethel, E. Wes

    2013-01-01

    Big Data Analaysis and Visualization: What Do LINACS andof California. BIG DATA ANALYSIS AND VISUALIZATION: WHAT DOproblems. INTRODUCTION Big data and its attendant

  3. Hypervolume visualization: a challenge in simplicity

    SciTech Connect (OSTI)

    Bajaj, C.L.; Pascucci, V.; Rabbiolo, G.; Schikore, D.R.

    1998-09-22

    Hyper-volume visualization is designed to provide simple and fully explanatory images that give comprehensive insights into the global structure of scalar fields of any dimension. The basic idea is to have a dimension independent viewing system that scales nicely with the geometric dimension of the dataset and that can be combined with classical approaches like isocontouring and animation of slices of n.D data. We completely abandon (for core simplicity) rendering techniques, such as hidden surface removal or lighting or radiosity, that enhance three dimensional realism and concentrate on the real-time display of images that highlight structural (topological) features of the nD dataset (holes, tunnels, cavities, depressions, extrema, etc). Hyper-volume visualization on the one hand is a generalization of direct parallel projection methods in volume rendering. To achieve efficiency (and real-time performance on a graphics workstation) we combine the advantages of (i) a hierarchical representations of the hyper-volume data for multiresolution display and (ii) generalized object space splatting combined with texture-mapped graphics hardware acceleration. The development of a system that implements display techniques for multidimensional datasets requires careful design of both algorithms and user interfaces that scale linearly with the dimension n of the input geometric space. This is a major challenge since straightforward generalizations of standard techniques that are suitable for display of 3D data yield exceedingly intricate interfaces. For example, a view manipulation graphical user interface is usually based on a rotation of the object about Cartesian rotation axes, with possibly unit quaternions internal representations for the rotation group. Unfortunately the number of independent rotation axes grows quadratically with dimension(three in 3D to six in 4D to ten in 5D to fifteen in 6D space). Going back to the basics of parallel projections, we develop an alternative scheme that is very simple to implement and immediately gives a view manipulation graphical user interface that scales linearly with the dimension. One can still utilize matrix or quaternion or higher dimensional rotational group representations, internally for calculations.The main results of our paper are thus both a multi-resolution direct rendering algorithm and scalable graphical user interface that provides insightfull global views of scalar fields in any dimension, while maintaining the fundamental characteristics of ease of use, and quick exploratory u

  4. A NEW VIEW ON INTERSTELLAR DUST HIGH FIDELITY STUDIES OF INTERSTELLAR DUST ANALOGUE TRACKS IN STARDUST FLIGHT SPARE AEROGEL

    E-Print Network [OSTI]

    IN STARDUST FLIGHT SPARE AEROGEL F. Postberg, C. Allen, S. Bajt, H. A. Bechtel, J. Borg, F. Brenker, J the Stardust Mission exposed aerogel collector panels for a total of about 200 days to the stream - 30km/s] interstellar dust (ISD) analogues onto Stardust aerogel flight spares. This en- ables

  5. Laser photoionization time-of-flight mass spectrometry of nitrated polycyclic aromatic hydrocarbons and nitrated heterocyclic compounds. Master's thesis

    SciTech Connect (OSTI)

    Noyes, R.A.

    1993-01-01

    Partial Contents: Laser Desorption-Laser Photoionization Time-of-Flight Mass Spectrometry; Basic Principles of TOFMS; Factors Affecting Flight Time; Source of Broadening; Laser Desorption; Theory of Multiphoton Ionization: Application to Mass Spectrometry; Quantum Theory of MPI; Time-Dependent Perturbation Theory; Time-Dependent Coefficients; Probability of a Two-Photon Process; and Attributes of R2PI.

  6. Change Blindness in Information Visualization: A Case Study

    SciTech Connect (OSTI)

    Nowell, Lucille T.; Hetzler, Elizabeth G.; Tanasse, Theodore E.

    2001-08-20

    AbstractChange blindness occurs when people do not notice changes in visible elements of a scene. If people use an infor-mation visualization system to compare document collec-tion subsets partitioned by their time-stamps, change blind-ness makes it impossible for them to recognize even very major changes, let alone minor ones. We describe theories from cognitive science that account for the change blindness phenomenon, as well as solutions de-veloped for two visual analysis tools, a dot plot (SPIRE Galaxies) and landscape (ThemeView?) visualizations.

  7. Theoretical crystallography with the Advanced Visualization System

    SciTech Connect (OSTI)

    Younkin, C.R.; Thornton, E.N.; Nicholas, J.B.; Jones, D.R.; Hess, A.C.

    1993-05-01

    Space is an Application Visualization System (AVS) graphics module designed for crystallographic and molecular research. The program can handle molecules, two-dimensional periodic systems, and three-dimensional periodic systems, all referred to in the paper as models. Using several methods, the user can select atoms, groups of atoms, or entire molecules. Selections can be moved, copied, deleted, and merged. An important feature of Space is the crystallography component. The program allows the user to generate the unit cell from the asymmetric unit, manipulate the unit cell, and replicate it in three dimensions. Space includes the Buerger reduction algorithm which determines the asymmetric unit and the space group of highest symmetry of an input unit cell. Space also allows the user to display planes in the lattice based on Miller indices, and to cleave the crystal to expose the surface. The user can display important precalculated volumetric data in Space, such as electron densities and electrostatic surfaces. With a variety of methods, Space can compute the electrostatic potential of any chemical system based on input point charges.

  8. Guided Text Search Using Adaptive Visual Analytics

    SciTech Connect (OSTI)

    Steed, Chad A; Symons, Christopher T; Senter, James K; DeNap, Frank A

    2012-10-01

    This research demonstrates the promise of augmenting interactive visualizations with semi- supervised machine learning techniques to improve the discovery of significant associations and insights in the search and analysis of textual information. More specifically, we have developed a system called Gryffin that hosts a unique collection of techniques that facilitate individualized investigative search pertaining to an ever-changing set of analytical questions over an indexed collection of open-source documents related to critical national infrastructure. The Gryffin client hosts dynamic displays of the search results via focus+context record listings, temporal timelines, term-frequency views, and multiple coordinate views. Furthermore, as the analyst interacts with the display, the interactions are recorded and used to label the search records. These labeled records are then used to drive semi-supervised machine learning algorithms that re-rank the unlabeled search records such that potentially relevant records are moved to the top of the record listing. Gryffin is described in the context of the daily tasks encountered at the US Department of Homeland Security s Fusion Center, with whom we are collaborating in its development. The resulting system is capable of addressing the analysts information overload that can be directly attributed to the deluge of information that must be addressed in the search and investigative analysis of textual information.

  9. Identification of High-Speed Rail Ballast Flight Risk Factors and Risk Mitigation Strategies

    E-Print Network [OSTI]

    Barkan, Christopher P.L.

    1 Identification of High-Speed Rail Ballast Flight Risk Factors and Risk Mitigation Strategies speed line, true high speed rail has seen an increasing success in those countries where such lines were speed rail (HSR) systems around the world during the past 50 years, one of the observed phenomena

  10. Modeling, Control, and Flight Testing of a Small Ducted Fan Aircraft

    E-Print Network [OSTI]

    Johnson, Eric N.

    1 Modeling, Control, and Flight Testing of a Small Ducted Fan Aircraft Eric N. Johnson* and Michael A. Turbe Georgia Institute of Technology, Atlanta, GA, 30332 Small ducted fan autonomous vehicles for the GTSpy, a small ducted fan autonomous vehicle based on the Micro Autonomous Systems' Helispy

  11. Toward a Better Understanding of Ducted Rotor Antitorque and Directional Control in Forward Flight

    E-Print Network [OSTI]

    Toward a Better Understanding of Ducted Rotor Antitorque and Directional Control in Forward Flight of ducted rotors in low-power, near-edgewise flow conditions are not well understood. Motivated by phenomena was initiated to use CFD to improve the understanding of the dynamic relationship between ducted rotor thrust

  12. Flight Test Evaluation of a Prototype Optical Instrument for Airborne Sense-and-Avoid Applications

    E-Print Network [OSTI]

    Hornsey, Richard

    Flight Test Evaluation of a Prototype Optical Instrument for Airborne Sense-and-Avoid Applications sense-and-avoid instrument was constructed from low-cost commercial off-the- shelf components 205 and the Bell 206 (intruder aircraft) were fully instrumented to record position and orientation

  13. Flight Testing a Real Time Implementation of a UAV Path Planner Using Direct Collocation

    E-Print Network [OSTI]

    Flight Testing a Real Time Implementation of a UAV Path Planner Using Direct Collocation Brian R by tracking a second UAV flying a predefined pattern. Finally, a method of commanding the observation vector ^s UAV sensor line of sight unit vector p Attraction point u UAV Control vector xt Target state

  14. UAV Formation Flight using 3D Potential Field Tobias Paul Thomas R. Krogstad Jan Tommy Gravdahl

    E-Print Network [OSTI]

    Gravdahl, Jan Tommy

    UAV Formation Flight using 3D Potential Field Tobias Paul Thomas R. Krogstad Jan Tommy Gravdahl ESG aerial vehicles (UAVs). Based on a virtual leader approach, combined with an extended local potential a group of UAVs based on a simplified small-scale helicopter, which is simulated in MATLABTM /Simulink

  15. Climate effects on the flight period of Lycaenid butterflies in Massachusetts

    E-Print Network [OSTI]

    Williams, Ernest H.

    Climate effects on the flight period of Lycaenid butterflies in Massachusetts Caroline A. Polgar a 2012 Accepted 16 December 2012 Keywords: Phenology Butterflies Climate change Museum records Citizen science a b s t r a c t The effect of climate change on the phenology of plants and birds of eastern North

  16. Roadmap: Aeronautics-Flight Technology-Bachelor of Science [AT-BS-AERN-FLGT

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Aeronautics-Flight Technology-Bachelor of Science [AT-BS-AERN-FLGT] College of Applied This roadmap is a recommended semester-by-semester plan of study for this major. However, courses Resource Management 2 Offered in fall only AERN 45721 Crew Resource Management Laboratory 1 #12;Roadmap

  17. Flight-Ready Robotic Servicing for Hubble Space Telescope: A White Paper

    E-Print Network [OSTI]

    Akin, David

    at the berthing fittings on the aft bulkhead, under supervisory ground control. Positioned by an extended version awaiting a flight opportunity. The Interim Control Module was developed by the Naval Research Laboratory. Should additional failures occur for which the servicing spacecraft carries spares, it can redock

  18. NASA/TP-2006-214203 Logistics Lessons Learned in NASA Space Flight

    E-Print Network [OSTI]

    de Weck, Olivier L.

    NASA/TP-2006-214203 Logistics Lessons Learned in NASA Space Flight William A. (Andy) Evans, United 2006 #12;NASA STI Program ... in Profile Since its founding, NASA has been dedicated to the advancement of aeronautics and space science. The NASA scientific and technical information (STI) program plays a key part

  19. NIST Report to the FBI: Plex-ID Electrospray Time-of-Flight Mass

    E-Print Network [OSTI]

    1 NIST Report to the FBI: Plex-ID Electrospray Time-of-Flight Mass Spectrometer for Mitochondrial. John Butler (NIST) Dr. Thomas Callaghan (FBI) Eric Pokorak (FBI) Points of view in this document of Investigation (FBI). Certain commercial equipment, instruments, and materials are identified in order to specify

  20. DIGITAL DATA ACQUISITION SYSTEM FOR TIME OF FLIGHT NEUTRON BEAM MEASUREMENTS

    E-Print Network [OSTI]

    Danon, Yaron

    , 12180, saglif@rpi.edu INTRODUCTION A system for neutron scattering measurements is under developmentDIGITAL DATA ACQUISITION SYSTEM FOR TIME OF FLIGHT NEUTRON BEAM MEASUREMENTS Frank J. Saglime III at the RPI LINAC [1]. The system is design to provide additional differential scattering data to improve upon

  1. 2007 Instrument Procedures Handbook; Chapter 5 Approach Authors: US Department of Transportation, Federal Aviation Administration (Flight

    E-Print Network [OSTI]

    Kaber, David B.

    , Federal Aviation Administration (Flight Procedures Standards Branch) From: www.faa.gov/library/manuals/aviation with weather around airports because it #12;influences the approaches they can implement, the amount of fuel used, and alternate approach planning. AIRPLANE PERFORMANCE OPERTING LIMITATIONS (Page 5-6) All

  2. FUNCTIONAL COMPLEXITY FAILURES AND AUTOMATION SURPRISES: THE MYSTERIOUS CASE OF CONTROLLED FLIGHT INTO STALL (CFIS)

    E-Print Network [OSTI]

    1 FUNCTIONAL COMPLEXITY FAILURES AND AUTOMATION SURPRISES: THE MYSTERIOUS CASE OF CONTROLLED FLIGHT of behaviors of the automation functions. There were no consistent: failures that triggered the events (e.g. sensor failures), effects of triggering events on the automation (e.g. mode change), or commands issued

  3. Complete CFD analysis of a Velocity XL-5 RG with flight-test verification 

    E-Print Network [OSTI]

    Schouten, Shane Michael

    2008-10-10

    in the wing. Therefore, it is necessary to understand the influence the canard and the impact of its wake on the wing of the aircraft before any in-depth aerodynamic research could be completed on the aircraft. A combination of in-flight measurements...

  4. GLOMAP Approach for Nonlinear System Identification of Aircraft Dynamics Using Flight Data

    E-Print Network [OSTI]

    Valasek, John

    GLOMAP Approach for Nonlinear System Identification of Aircraft Dynamics Using Flight Data Monika model dynamics are assumed to be perturbed by a nonlinear term which represents the system accurate behavior. Nonlinear system identification of aircraft dynamics is a comparitively new and still

  5. Texas Tech University Pre-Flight Checklist for TTU Web Pages

    E-Print Network [OSTI]

    Rock, Chris

    Texas Tech University Pre-Flight Checklist for TTU Web Pages In order to help ensure that all Texas Tech University web pages are created and maintained in accordance with the TTU Web Guidelines-browser compatibility Accessibility Ensure pages comply with the Texas Administrative Code (TAC) §206, State Web

  6. The Fight and Flight Responses of Crickets Depleted of Biogenic Amines

    E-Print Network [OSTI]

    Hofmann, Hans A.

    The Fight and Flight Responses of Crickets Depleted of Biogenic Amines Paul A. Stevenson, Hans A or submissive behaviors. AMT-treated crickets could normally only be brought to fight by coaxing. Though capable metabolic body functions for the prospective fight, whereas the central nervous noradrenergic sys- tem

  7. Data-driven Control of Flapping Flight EUNJUNG JU and JUNGDAM WON and JEHEE LEE

    E-Print Network [OSTI]

    Lee, Jehee

    in high-speed videos (see Figure 3). 3.2 System Overview Our flight control system consists of three main graphs that vary in its shape, amplitude, and phase (see Figure 5). We use a parametrized wingbeat model the controller from the first phase for random control tasks. In Figure 10, we plotted the outputs (P

  8. Flight Path and Wing Optimization of Lithium-Air Battery Powered Passenger Aircraft

    E-Print Network [OSTI]

    Alonso, Juan J.

    in the design of electrically-driven aircraft, particularly in the case of fuel cells and batteries.5­7 One to implement vis. a vis. fuel cells, in particular, liquid hydrogen fuel cells. However, present-day batteryFlight Path and Wing Optimization of Lithium-Air Battery Powered Passenger Aircraft J. Michael Vegh

  9. Laser desorption time-of-flight mass spectrometer DNA analyzer. Final report

    SciTech Connect (OSTI)

    Chen, C.H.W.; Martin, S.A.

    1997-02-01

    The objective of this project is the development of a laser desorption time-of-flight mass spectrometer DNA analyzer which can be broadly used for biomedical research. Tasks include: pulsed ion extraction to improve resolution; two-component matrices to enhance ionization; and solid phase DNA purification.

  10. Using Simulations To Determine The Energy Resolution Function Of Neutron Time-Of-Flight Experiments

    E-Print Network [OSTI]

    Danon, Yaron

    and their contribution to the understanding of nuclear models and interaction theory. At the Rensselaer Gaerttner LinearUsing Simulations To Determine The Energy Resolution Function Of Neutron Time-Of- Flight INTRODUCTION High resolution nuclear data are important in their application in neutron transport calculations

  11. Development of an Adaptive Flap/Flaperon Flight Control System with Shape Memory Alloy Actuation

    E-Print Network [OSTI]

    Sinn, Thomas

    2010-06-09

    Edge Part in Tool ...................................................................................... 64 Figure 59: Applied Strain Gages with Connection Wires ........................................................ 65 Figure 60: Stretching... function of temperature. The application of adaptive materials in aerospace structures seems to be perfect because of their low weight and part count compared to conventional aerospace structures. Due to the fact that several different flight regimes...

  12. Lyapunov Vector Fields for Autonomous UAV Flight Control1 Dale A. Lawrence2

    E-Print Network [OSTI]

    Frew, Eric W.

    Lyapunov Vector Fields for Autonomous UAV Flight Control1 Dale A. Lawrence2 , Eric. W. Frew3 that incorporate Lyapunov stability properties to produce simple, globally stable vector fields in 3D. Use of the vector field is considered, using Lyapunov techniques to show global stability of heading and path

  13. LETTER TO THE EDITOR Levy Flights: Transitions and Meta-Stability

    E-Print Network [OSTI]

    Imkeller, Peter

    values increase as a power - of the noise intensity . This allows to obtain meta- stability results of financial markets [7]. L´evy flights also naturally appear in particle evolutions along polymer chains [8, 9 increments and marginals with symmetric stable laws of index (0, 2). The Fourier transform of the marginal

  14. Neutron-induced fission measurements at the time-of-flight facility nELBE

    SciTech Connect (OSTI)

    Kögler, T. [Helmholtz-Zentrum Dresden-Rossendorf, Dresden (Germany); Technische Univ. Dresden, Dresden (Germany); Beyer, R. [Helmholtz-Zentrum Dresden-Rossendorf, Dresden (Germany); Junghans, A. R. [Helmholtz-Zentrum Dresden-Rossendorf, Dresden (Germany); Massarczyk, R. [Helmholtz-Zentrum Dresden-Rossendorf, Dresden (Germany); Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Schwengner, R. [Helmholtz-Zentrum Dresden-Rossendorf, Dresden (Germany); Wagner, A. [Helmholtz-Zentrum Dresden-Rossendorf, Dresden (Germany)

    2015-01-01

    Neutron-induced fission of ²?²Pu is studied at the photoneutron source nELBE. The relative fast neutron fission cross section was determined using actinide fission chambers in a time-of-flight experiment. A good agreement of present nuclear data with evalua- tions has been achieved in the range of 100 keV to 10 MeV.

  15. 1182 J. GUIDANCE, VOL. 19, NO. 5: ENGINEERING NOTES Fig. 2 Fixed and optimized flight paths.

    E-Print Network [OSTI]

    Singh, Tarunraj

    and optimized flight paths. Conclusion A simple guidance law for operation of dual-fuel SSTO launch vehicles hasbeen developed andused to determine the optimal value of the transition Mach number from dual fuel higher dynamic pressure than the fixed, particularly in dual-fuel mode. In the future, the guidance

  16. Targeted Autonomous Indoor Flight of a Rotary-Wing MAV Svetlana Potyagaylo

    E-Print Network [OSTI]

    Kanza, Yaron

    Targeted Autonomous Indoor Flight of a Rotary-Wing MAV Svetlana Potyagaylo PhD Student Faculty of Aerospace Engineering svetap@tx.technion.ac.il Omri Rand Professor Faculty of Aerospace Engineering omri for Autonomous Rotary-Wing Micro Aerial Vehicles (RW MAVs) in indoor GPS-denied environments. In such missions

  17. Deformed wing virus and drone mating flights in the honey bee (Apis mellifera): implications for sexual

    E-Print Network [OSTI]

    Paxton, Robert

    Deformed wing virus and drone mating flights in the honey bee (Apis mellifera): implications clear evidence for the occurrence of high DWV titres in the endophallus of sexually mature drones collected from drone congregation areas (DCAs). Furthermore, the endophallus DWV titres of drones collected

  18. Neutron-induced fission measurements at the time-of-flight facility nELBE

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

    Kögler, T.; Beyer, R.; Junghans, A. R.; Massarczyk, R.; Schwengner, R.; Wagner, A.

    2015-05-18

    Neutron-induced fission of ²?²Pu is studied at the photoneutron source nELBE. The relative fast neutron fission cross section was determined using actinide fission chambers in a time-of-flight experiment. A good agreement of present nuclear data with evalua- tions has been achieved in the range of 100 keV to 10 MeV.

  19. Design and implementation of a robust and nonlinear flight control system for an unmanned helicopter

    E-Print Network [OSTI]

    Benmei, Chen

    : Available online 4 March 2011 Keywords: Unmanned aerial vehicles Unmanned systems Nonlinear flight dynamics driving to device operation management. Among various unmanned aerial vehicles (UAVs), small. Software systems for unmanned vehicles are required to per- form multi-level tasks, such as from hardware

  20. Offset Masking in a Divided Visual Field Study

    E-Print Network [OSTI]

    Young, Keith

    2008-02-25

    A problem in divided visual field studies which use event-related potentials as a dependent measure is the large number of horizontal eye movements participants make during experimental trials. Past attention research ...

  1. A conceptional framework for rapid prototyping system for architectural visualization 

    E-Print Network [OSTI]

    Vanguri, Sarma

    1996-01-01

    Visualizing design through various mediums such as model building, rendering and drawing has always been the primary means of communication in the field of architecture. Recently, computer technology has became one of the important methods...

  2. 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...

  3. Modelling visual-olfactory integration in free-flying Drosophila 

    E-Print Network [OSTI]

    Stewart, Finlay J

    2010-01-01

    Flying fruit flies (Drosophila melanogaster) locate a concealed appetitive odour source most accurately in environments containing vertical visual contrasts (Frye et al, 2003). To investigate how visuomotor and olfactory ...

  4. MICROWAVE IMAGING REFLECTOMETRY FOR THE VISUALIZATION OF TURBULENCE IN TOKAMAKS

    E-Print Network [OSTI]

    1 MICROWAVE IMAGING REFLECTOMETRY FOR THE VISUALIZATION OF TURBULENCE IN TOKAMAKS E. Mazzucato of density fluctuations in tokamaks. The proposed method is based on microwave reflectometry and consists are discussed. Key words: Tokamak, anomalous transport, turbulent fluctuations, microwave imaging reflectometry

  5. Structural Monitoring System (SMS) and Visual System (VS)

    Office of Energy Efficiency and Renewable Energy (EERE)

    Axis Communications, Inc. has developed network ready, environmentally tolerant, low-light level camera-visual systems (VS) with built-in pan and tilt mechanisms that permit remote monitoring of...

  6. Package Surface Blueprints: Visually Supporting the Understanding of Package Relationships

    E-Print Network [OSTI]

    Ducasse, Stéphane

    Package Surface Blueprints: Visually Supporting the Understanding of Package Relationships Accepted Abstract Large object-oriented applications are structured over large number of packages. Packages...). Maintainers of large applications face the problem of understanding how packages are structured in general

  7. Visualizing Unsteady Vortical Behavior of a Centrifugal Pump Mathias Otto

    E-Print Network [OSTI]

    Visualizing Unsteady Vortical Behavior of a Centrifugal Pump Mathias Otto University of Magdeburg. The given data represents a high resolution simulation of a centrifugal pump used to transport liquids

  8. The essential role of visualization for modeling nanotubes and nanodiamond

    E-Print Network [OSTI]

    Adler, Joan

    The essential role of visualization for modeling nanotubes and nanodiamond Joan Adler, T. Mutat, A of hydrocarbons in nanotubes, and the creation of nanodiamond from amorphous carbon under pressure. Interactive

  9. Display blocks : cubic displays for multi-perspective visualizations

    E-Print Network [OSTI]

    Pla i Conesa, Pol

    2012-01-01

    This thesis details the design, execution and evaluation of a new type of display technology, known as Display Blocks. Display Blocks are a response to two major limitations of current displays: visualization and interaction. ...

  10. Visual Feedback in a Coordinated Hand-Eye System

    E-Print Network [OSTI]

    Woodham, Robert J.

    A system is proposed for the development of new techniques for the control and monitoring of a mechanical arm-hand. The use of visual feedback is seen to provide new interactive capabilities in a machine hand-eye system. ...

  11. Glyph-Based Generic Network Visualization Robert F. Erbacher

    E-Print Network [OSTI]

    Erbacher, Robert F.

    for constant real-time monitoring of the network environment. Keywords: Information Visualization, Computer monitoring environment. The need for intrusion detection monitoring should be clear. Traffic monitoring network for their livelihood. Network managers and system administrators must monitor activity

  12. Visual Similarity Effects in Categorical Search Robert G. Alexander1

    E-Print Network [OSTI]

    Zelinsky, Greg

    Visual Similarity Effects in Categorical Search Robert G. Alexander1 (rgalexander Microsoft Corporation Abstract The factors affecting search guidance to categorical targets are largely classes, teddy bears and butterflies, affects search guidance. Experiment 1 used a web-based task

  13. SciDAC Visualization and Analytics Center for Enabling Technologies

    SciTech Connect (OSTI)

    Joy, Kenneth I.

    2014-09-14

    This project focuses on leveraging scientific visualization and analytics software technology as an enabling technology for increasing scientific productivity and insight. Advances in computational technology have resulted in an "information big bang," which in turn has created a significant data understanding challenge. This challenge is widely acknowledged to be one of the primary bottlenecks in contemporary science. The vision for our Center is to respond directly to that challenge by adapting, extending, creating when necessary and deploying visualization and data understanding technologies for our science stakeholders. Using an organizational model as a Visualization and Analytics Center for Enabling Technologies (VACET), we are well positioned to be responsive to the needs of a diverse set of scientific stakeholders in a coordinated fashion using a range of visualization, mathematics, statistics, computer and computational science and data management technologies.

  14. Place recognition using near and far visual information

    E-Print Network [OSTI]

    Cadena, Cesar

    2013-05-15

    In this paper we show how to carry out robust place recognition using both near and far information provided by a stereo camera. Visual appearance is known to be very useful in place recognition tasks. In recent years, it ...

  15. John Papanikolas: Visualizing Charge Carrier Motion in Nanowires...

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

    John Papanikolas: Visualizing Charge Carrier Motion in Nanowires Using Femtosecond Pump-Probe Microscopy Apr 17, 2014 | 4:00 PM - 5:00 PM John Papanikolas Professor of Chemistry &...

  16. Eliot Feibush leads new Princeton consortium to visualize Big...

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

    Eliot Feibush leads new Princeton consortium to visualize Big Data By John Greenwald April 22, 2015 Tweet Widget Google Plus One Share on Facebook Eliot Feibush (Photo by Elle...

  17. Transforming big data into knowledge : experimental techniques in dynamic visualization

    E-Print Network [OSTI]

    Kennedy, Stephen James, M.C.P. Massachusetts Institute of Technology

    2012-01-01

    Information visualizations, especially those utilizing web-based platforms, are becoming an increasingly common medium for exchanging ideas. This emergent class of tools enabling web-based, interactive platforms for ...

  18. Interactive visualization of big data leveraging databases for scalable computation

    E-Print Network [OSTI]

    Battle, Leilani Marie

    2013-01-01

    Modern database management systems (DBMS) have been designed to efficiently store, manage and perform computations on massive amounts of data. In contrast, many existing visualization systems do not scale seamlessly from ...

  19. Applying video magnification techniques to the visualization of blood flow

    E-Print Network [OSTI]

    Zhao, Amy (Xiaoyu Amy)

    2015-01-01

    In this thesis, we investigate the use of video magnification for the visualization and assessment of blood flow. We address the challenge of low signal-to-noise ratios in video magnification by modeling the problem and ...

  20. Shaogang Gong and Tao Xiang VISUAL ANALYSIS OF BEHAVIOUR

    E-Print Network [OSTI]

    Gong, Shaogang

    Shaogang Gong and Tao Xiang VISUAL ANALYSIS OF BEHAVIOUR From Pixels to Semantics February 2011 Springer #12;#12;To Aleka, Philip and Alexander Shaogang Gong To Ning and Rachel Tao Xiang #12;#12;Preface

  1. High-dimensional design space visualization for conceptual structural design

    E-Print Network [OSTI]

    Mueller, Caitlin T

    2014-01-01

    This thesis focuses on visualizing high-dimensional design spaces for early-stage design problems in structural engineering and related disciplines. The design space, which is defined as the n + 1-dimensional surface that ...

  2. Selectivity and development of the visual word form area

    E-Print Network [OSTI]

    King, Li-Wei

    2013-01-01

    An area of left occipitotemporal cortex commonly referred to as the visual word form area (VWFA), has consistently been shown to activate during the processing of written language. However, the exact nature of the region's ...

  3. Multistream Articulatory Feature-Based Models for Visual Speech Recognition

    E-Print Network [OSTI]

    Glass, James R.

    We study the problem of automatic visual speech recognition (VSR) using dynamic Bayesian network (DBN)-based models consisting of multiple sequences of hidden states, each corresponding to an articulatory feature (AF) such ...

  4. Numerical Modeling of Eastern Connecticut's Visual Resources1

    E-Print Network [OSTI]

    Numerical Modeling of Eastern Connecticut's Visual Resources1 Daniel L. Civco 2/ l Submitted Conservation, The University of Connecticut, Storrs, Connecticut. / Abstract: A numerical model capable of accurately predicting the preference for landscape photographs of selected points in eastern Connecticut

  5. Production system improvement : floor area reduction and visual management

    E-Print Network [OSTI]

    Chen, Zhuling, M. Eng. Massachusetts Institute of Technology

    2012-01-01

    This thesis suggests on the development process of a new layout design and visual management tools to improve the efficiency of a production line in a medical device company. Lean production philosophy and common lean ...

  6. Modern Scientific Visualization is more than Just Pretty Pictures

    E-Print Network [OSTI]

    Bethel, E Wes

    2009-01-01

    is More than Just Pretty Pictures E. Wes Bethel, Oliver R¨More than Just Pretty Pictures One of the major challengesMore than Just Pretty Pictures mensional visual information

  7. Femto-photography: capturing and visualizing the propagation of light

    E-Print Network [OSTI]

    Velten, Andreas

    We present femto-photography, a novel imaging technique to capture and visualize the propagation of light. With an effective exposure time of 1.85 picoseconds (ps) per frame, we reconstruct movies of ultrafast events at ...

  8. Planar visualization of phase objects using a focusing schlieren technique 

    E-Print Network [OSTI]

    Kim, Dong-Ho

    1998-01-01

    A focusing schlieren technique has been designed and phics. constructed to examine planar images of optically thin phase objects including high-speed gas jets and flames. The conventional schlieren technique is a highly useful visualization method...

  9. Direct Visualization of Laser-Driven Focusing Shock Waves

    E-Print Network [OSTI]

    Pezeril, Thomas

    Direct real-time visualization and measurement of laser-driven shock generation, propagation, and 2D focusing in a sample are demonstrated. A substantial increase of the pressure at the convergence of the cylindrical ...

  10. Flow visualization and leakage measurements of worn labyrinth seals 

    E-Print Network [OSTI]

    Allen, Brian Frank

    1997-01-01

    A large-scale flow visualization test facility is used to conduct an experimental investigation into the leakage resistance and flow characteristics of worn labyrinth seals. Wear in labyrinth seals is a consequence of ...

  11. Large Data Visualization on Distributed Memory Mulit-GPU Clusters

    SciTech Connect (OSTI)

    Childs, Henry R.

    2010-03-01

    Data sets of immense size are regularly generated on large scale computing resources. Even among more traditional methods for acquisition of volume data, such as MRI and CT scanners, data which is too large to be effectively visualization on standard workstations is now commonplace. One solution to this problem is to employ a 'visualization cluster,' a small to medium scale cluster dedicated to performing visualization and analysis of massive data sets generated on larger scale supercomputers. These clusters are designed to fit a different need than traditional supercomputers, and therefore their design mandates different hardware choices, such as increased memory, and more recently, graphics processing units (GPUs). While there has been much previous work on distributed memory visualization as well as GPU visualization, there is a relative dearth of algorithms which effectively use GPUs at a large scale in a distributed memory environment. In this work, we study a common visualization technique in a GPU-accelerated, distributed memory setting, and present performance characteristics when scaling to extremely large data sets.

  12. Primary Chinese Semantic-Phonetic Compounds Pronunciation Rules Mining and Visualization

    E-Print Network [OSTI]

    confidence) (scatter plot) (graph-based visualization)(parallel coordinates plots) (double decker plot

  13. G E O M A T I C A VISUAL MODELLING OF SPATIAL DATABASES

    E-Print Network [OSTI]

    G E O M A T I C A VISUAL MODELLING OF SPATIAL DATABASES: TOWARDS SPATIAL PVL AND UML - Yvan Bédard of the art in spatial database modelling. In particular, it discusses visual languages and related research of visual database modelling. Visual database modelling helps us to under- stand and to describe more

  14. Demonstration of artificial visual percepts generated through thalamic microstimulation John S. Pezaris, and R. Clay Reid

    E-Print Network [OSTI]

    Reid, R. Clay

    Demonstration of artificial visual percepts generated through thalamic microstimulation John S.pnas.org/misc/reprints.shtml To order reprints, see: Notes: #12;Demonstration of artificial visual percepts generated through thalamic into the visual path, the hope is that an analogue of vision can be created. Research efforts in visual prostheses

  15. Texas A&M Information Technology Audio Visual Surveillance Technology Committee

    E-Print Network [OSTI]

    Texas A&M Information Technology Audio Visual Surveillance Technology Committee Audio Visual;Texas A&M Information Technology Audio Visual Surveillance Technology Committee Audio Visual Surveillance Technology Installation/Activation Request Page 1 of 2 In accordance with Texas A&M's Standard

  16. SUBGROUP VISUALIZATION Petra Kralj(1), Nada Lavrac(1,2), Blaz Zupan (3,4)

    E-Print Network [OSTI]

    Novak, Petra Kralj

    and visualization is presented. 2 SUBGROUP VISUALIZATION BY PIE CHARTS Slices of pie charts are the most common way visualization by pie chart consists of a two level pie for each subgroup. The base pie represents subgroup. An example of five subgroups visualized by pie chart is presented in Figure 1. Figure 1: Subgroup

  17. Visualization of Tokamak Operational Spaces Through the Projection of Data Probability Distributions

    E-Print Network [OSTI]

    Visualization of Tokamak Operational Spaces Through the Projection of Data Probability Distributions

  18. APPLICATION OF THE pV3 COPROCESSING VISUALIZATION ENVIRONMENT TO 3D UNSTRUCTURED MESH CALCULATIONS

    E-Print Network [OSTI]

    Peraire, Jaime

    APPLICATION OF THE pV3 CO­PROCESSING VISUALIZATION ENVIRONMENT TO 3­D UNSTRUCTURED MESH Moffett Field, CA 94035 barth@nas.nasa.gov (415) 604­6740 Introduction The pV3 visualization system­domain. The Visualization System pV3[2] is a complete distributed CFD­style visualization package. It is new, but builds

  19. The Ultra-scale Visualization Climate Data Analysis Tools (UV-CDAT): Data Analysis and Visualization for Geoscience Data

    SciTech Connect (OSTI)

    Williams, Dean; Doutriaux, Charles; Patchett, John; Williams, Sean; Shipman, Galen; Miller, Ross; Steed, Chad; Krishnan, Harinarayan; Silva, Claudio; Chaudhary, Aashish; Bremer, Peer-Timo; Pugmire, David; Bethel, E. Wes; Childs, Hank; Prabhat, Mr.; Geveci, Berk; Bauer, Andrew; Pletzer, Alexander; Poco, Jorge; Ellqvist, Tommy; Santos, Emanuele; Potter, Gerald; Smith, Brian; Maxwell, Thomas; Kindig, David; Koop, David

    2013-05-01

    To support interactive visualization and analysis of complex, large-scale climate data sets, UV-CDAT integrates a powerful set of scientific computing libraries and applications to foster more efficient knowledge discovery. Connected through a provenance framework, the UV-CDAT components can be loosely coupled for fast integration or tightly coupled for greater functionality and communication with other components. This framework addresses many challenges in the interactive visual analysis of distributed large-scale data for the climate community.

  20. Interaction between visual attention and the processing of visual emotional stimuli in humans : eye-tracking, behavioural and event-related potential experiments 

    E-Print Network [OSTI]

    Acunzo, David Jean Pascal

    2013-11-28

    Past research has shown that the processing of emotional visual stimuli and visual attention are tightly linked together. In particular, emotional stimuli processing can modulate attention, and, reciprocally, the processing ...

  1. How Common are Noise Sources on the Crash Arc of Malaysian Flight 370

    SciTech Connect (OSTI)

    Fenimore, Edward E.; Kunkle, Thomas David; Stead, Richard J.

    2014-10-21

    Malaysian Flight 370 disappeared nearly without a trace. Besides some communication handshakes to the INMASAT satellite, the Comprehensive Test Ban Treaty monitoring system could have heard the aircraft crash into the southern Indian Ocean. One noise event from Cape Leeuwin has been suggested by Stead as the crash and occurs within the crash location suggested by Kunkle at el. We analyze the hydrophone data from Cape Leeuwin to understand how common such noise events are on the arc of possible locations where Malaysian Flight 370 might have crashed. Few other noise sources were found on the arc. The noise event found by Stead is the strongest. No noise events are seen within the Australian Transportation Safety Board (ATSB) new search location until the 10th strongest event, an event which is very close to the noise level.

  2. Data acquisition system with pulse height capability for the TOFED time-of-flight neutron spectrometer

    SciTech Connect (OSTI)

    Chen, Z. J.; Peng, X. Y.; Zhang, X.; Du, T. F.; Hu, Z. M.; Cui, Z. Q.; Ge, L. J.; Xie, X. F.; Yuan, X.; Li, X. Q.; Zhang, G. H.; Chen, J. X.; Fan, T. S., E-mail: tsfan@pku.edu.cn [School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China); Gorini, G.; Nocente, M.; Tardocchi, M. [Dipartimento di Fisica, Università di Milano-Bicocca, Milano, Piazza della Scienza 3, 20126 Milano (Italy); Istituto di Fisica del Plasma “P. Caldirola”, EURATOM-ENEA-CNR Association, Via Cozzi 53, 20125 Milano (Italy); Hu, L. Q.; Zhong, G. Q.; Lin, S. Y.; Wan, B. N. [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, Anhui (China)

    2014-11-15

    A new time-of-flight neutron spectrometer TOFED has been constructed for installation at Experimental Advanced Superconducting Tokamak. A data acquisition system combining measurements of flight time and energy from the interaction of neutrons with the TOFED scintillators has been developed. The data acquisition system can provide a digitizing resolution better than 1.5% (to be compared with the >10% resolution of the recoil particle energy in the plastic scintillators) and a time resolution <1 ns. At the same time, it is compatible with high count rate event recording, which is an essential feature to investigate phenomena occurring on time scales faster than the slowing down time (?100 ms) of the beam ions in the plasma. Implications of these results on the TOFED capability to resolve fast ion signatures in the neutron spectrum from EAST plasmas are discussed.

  3. Detection system for high-resolution gamma radiation spectroscopy with neutron time-of-flight filtering

    DOE Patents [OSTI]

    Dioszegi, Istvan; Salwen, Cynthia; Vanier, Peter

    2014-12-30

    A .gamma.-radiation detection system that includes at least one semiconductor detector such as HPGe-Detector, a position-sensitive .alpha.-Detector, a TOF Controller, and a Digitizer/Integrator. The Digitizer/Integrator starts to process the energy signals of a .gamma.-radiation sent from the HPGe-Detector instantly when the HPGe-Detector detects the .gamma.-radiation. Subsequently, it is determined whether a coincidence exists between the .alpha.-particles and .gamma.-radiation signal, based on a determination of the time-of-flight of neutrons obtained from the .alpha.-Detector and the HPGe-Detector. If it is determined that the time-of-flight falls within a predetermined coincidence window, the Digitizer/Integrator is allowed to continue and complete the energy signal processing. If, however, there is no coincidence, the Digitizer/Integrator is instructed to be clear and reset its operation instantly.

  4. Invited Article: Characterization of background sources in space-based time-of-flight mass spectrometers

    SciTech Connect (OSTI)

    Gilbert, J. A.; Gershman, D. J.; Gloeckler, G.; Lundgren, R. A.; Zurbuchen, T. H.; Orlando, T. M.; McLain, J.; Steiger, R. von

    2014-09-15

    For instruments that use time-of-flight techniques to measure space plasma, there are common sources of background signals that evidence themselves in the data. The background from these sources may increase the complexity of data analysis and reduce the signal-to-noise response of the instrument, thereby diminishing the science value or usefulness of the data. This paper reviews several sources of background commonly found in time-of-flight mass spectrometers and illustrates their effect in actual data using examples from ACE-SWICS and MESSENGER-FIPS. Sources include penetrating particles and radiation, UV photons, energy straggling and angular scattering, electron stimulated desorption of ions, ion-induced electron emission, accidental coincidence events, and noise signatures from instrument electronics. Data signatures of these sources are shown, as well as mitigation strategies and design considerations for future instruments.

  5. Polychronous Interpretation of Synoptic, a Domain Specific Modeling Language for Embedded Flight-Software

    E-Print Network [OSTI]

    Besnard, L; Ouy, J; Talpin, J -P; Bodeveix, J -P; Cortier, A; Pantel, M; Strecker, M; Garcia, G; Rugina, A; Buisson, J; Dagnat, F

    2010-01-01

    The SPaCIFY project, which aims at bringing advances in MDE to the satellite flight software industry, advocates a top-down approach built on a domain-specific modeling language named Synoptic. In line with previous approaches to real-time modeling such as Statecharts and Simulink, Synoptic features hierarchical decomposition of application and control modules in synchronous block diagrams and state machines. Its semantics is described in the polychronous model of computation, which is that of the synchronous language Signal.

  6. NASA 36.286 Flight Summary SDO EVE Calibration Rocket flown on June 23, 2012

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    NASA 36.286 Flight Summary SDO EVE Calibration Rocket flown on June 23, 2012 (only quicklook data degradation of about 10%/year is due to hydrocarbon contaminates. #12;Summary of NASA 36.286 Results All EVE SAM X-ray SDO AIA 17.1 nm SDO HMI Mag. Fields #12;NASA 36.286: MEGS-A (5-37 nm) MEGS-A has dual

  7. Genetic icing effects on forward flight performance of a model helicopter rotor 

    E-Print Network [OSTI]

    Tinetti-Sanchez, Ana Fiorella

    1987-01-01

    introduces decrements in performance caused by leading edge separation regions and increased surface roughness, In addition to the expected changes in aerodynamic forces caused by var- iations in test Reynolds number, forward flight data seemed to be in... coefficient CT - thrust coefficient CY - Y-force coefficient c - blade chord c~ - section lift coefficient cd - section drag coefficient D - drag (wind axis) De - equivalent drag Dp - profile drag FM - Figure of Merit F - section radial aerodynamic...

  8. Visual Data Analysis as an Integral Part of Environmental Management

    SciTech Connect (OSTI)

    Meyer, Joerg; Bethel, E. Wes; Horsman, Jennifer L.; Hubbard, Susan S.; Krishnan, Harinarayan; Romosan,, Alexandru; Keating, Elizabeth H.; Monroe, Laura; Strelitz, Richard; Moore, Phil; Taylor, Glenn; Torkian, Ben; Johnson, Timothy C.; Gorton, Ian

    2012-10-01

    The U.S. Department of Energy's (DOE) Office of Environmental Management (DOE/EM) currently supports an effort to understand and predict the fate of nuclear contaminants and their transport in natural and engineered systems. Geologists, hydrologists, physicists and computer scientists are working together to create models of existing nuclear waste sites, to simulate their behavior and to extrapolate it into the future. We use visualization as an integral part in each step of this process. In the first step, visualization is used to verify model setup and to estimate critical parameters. High-performance computing simulations of contaminant transport produces massive amounts of data, which is then analyzed using visualization software specifically designed for parallel processing of large amounts of structured and unstructured data. Finally, simulation results are validated by comparing simulation results to measured current and historical field data. We describe in this article how visual analysis is used as an integral part of the decision-making process in the planning of ongoing and future treatment options for the contaminated nuclear waste sites. Lessons learned from visually analyzing our large-scale simulation runs will also have an impact on deciding on treatment measures for other contaminated sites.

  9. Nanometer scale elemental analysis in the helium ion microscope using time of flight spectrometry

    E-Print Network [OSTI]

    Klingner, Nico; Hlawacek, Gregor; von Borany, Johannes; Notte, John; Huang, Jason; Facsko, Stefan

    2015-01-01

    Time of flight Rutherford backscattering spectrometry (ToF-RBS) was successfully implemented in a helium ion microscope (HIM). Its integration introduces the ability to perform laterally resolved elemental analysis as well as elemental depth profiling on the nm scale. A lateral resolution of $\\leq$ 54 nm and an energy resolution of $\\Delta E \\leq$ 1.5 keV $(\\Delta E/E=5.4\\%)$ are achieved. By using the energy of the backscattered particles for contrast generation, we introduce a new imaging method to the HIM allowing direct elemental mapping as well as local spectrometry. In addition laterally resolved time of flight secondary ion mass spectrometry (ToF-SIMS) can be performed with the same setup. Time of flight is implemented by pulsing the primary ion beam. This is achieved in a cost effective and minimal invasive way that does not influence the high resolution capabilities of the microscope when operating in standard secondary electron (SE) imaging mode. This technique can thus be easily adapted to existing...

  10. A system architecture for long duration free floating flight for military applications

    SciTech Connect (OSTI)

    Epley, L.E. )

    1990-08-31

    Accessibility is today's space frontier. Our need for wide-band global communications, earth imaging an sensing, atmospheric measurements and military reconnaissance is endless but growing dependence on space-based systems raises concerns about potential vulnerability. Military commanders want space assets more accessible and under direct local control. As a result, a robust and low cost access to space-like capability has become a national priority. Buoyant vehicles, free floating in the middle stratosphere could provide the kind of cost effective access to space-like capability needed for a verity of missions. These vehicles are inexpensive, invisible and easily launched. Developments in payload electronics, atmospheric wind modeling and materials combined with ever-improving communications and navigation infrastructure are making balloon-borne concepts more attractive. The fundamental question is whether a free floating balloon, used in a pseudo-satellite role, has value in a military system. Flight tests are ongoing under NASA sponsorship. Following these tests NASA intends to use the vehicles for research in the Antarctic. The concept is being reviewed by other agencies interested in stratospheric research. We believe that LDFFF systems have applications in areas of communications, surveillance and other traditional satellite missions. Dialogue with the broader community of space users is needed to expand the applications. This report reviews the status of the recent flight tests and presents an overview of the concept of Long Duration Free Floating Flight for military applications. 12 refs., 13 figs.

  11. Guaranteed margins and performance for an adaptive flight control system and application on the X-15 research airplane

    E-Print Network [OSTI]

    Dydek, Zachary Thompson

    2007-01-01

    The design tools developed for use with linear controllers such as gain and phase margins do not apply to nonlinear control architectures such as adaptive control. For decades, flight control engineers have used these tools ...

  12. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, VOL. 50, NO. 3, JUNE 2003 421 Optimal Nonlinear Line-of-Flight Estimation in

    E-Print Network [OSTI]

    Zeevi, Yehoshua Y. "Josh"

    --Artificial neural network, emission tomography, gamma camera, scintillation detector. I. INTRODUCTION DETECTION-of-Flight Estimation in Positron Emission Tomography Alexander M. Bronstein, Michael M. Bronstein, Michael Zibulevsky tomography using thick scintillation crys- tals. Parallax effect and multiple Compton interactions

  13. Characterization of a pulsed beam Time-of-Flight system for medium energy He+ and C+ backscattering spectrometry 

    E-Print Network [OSTI]

    Thompson, Kelly

    1994-01-01

    Efficiencies of a microchannel plate detector for medium energy helium and carbon ions were determined using a recently developed time of flight technique for near surface analysis by medium energy ion scattering. This technique utilizes a pulsed...

  14. Development of a variable-temperature ion mobility/ time-of-flight mass spectrometer for separation of electronic isomers 

    E-Print Network [OSTI]

    Verbeck, Guido Fridolin

    2005-08-29

    The construction of a liquid nitrogen-cooled ion mobility spectrometer coupled with time-of-flight mass spectrometry was implemented to demonstrate the ability to discriminate between electronic isomers. Ion mobility allows for the separation...

  15. Development of tandem time-of-flight instrumentation for the examination of prompt photodissociation of peptides using 193-nm radiation 

    E-Print Network [OSTI]

    Morgan, Joseph William

    2006-04-12

    The design and incorporation of a decelerating/accelerating cell into a reflectron time-of-flight mass spectrometer is described for the examination of promptly-formed photodissociation products of peptide ions. The analytical utility of prompt 193...

  16. Characterisation of individual airborne particles by using aerosol time-of-flight mass spectrometry (ATOFMS) at Mace Head, Ireland, 

    E-Print Network [OSTI]

    Dall'Osto, Manuel; Beddows, David C S; Kinnersley, Robert P; Harrison, Roy M; Donovan, Robert J; Heal, Mathew R

    2004-01-01

    An aerosol time-of-flight mass spectrometer was deployed at Mace Head (Ireland) during August 2002. The measurements provide qualitative chemical composition and size distribution (0.3–3 ?m) information for single ...

  17. Hummingbirds generate bilateral vortex loops during hovering: evidence from flow visualization

    E-Print Network [OSTI]

    Pournazeri, Sam; Segre, Paolo; Princevac, Marko; Altshuler, Douglas

    2012-01-01

    energetic cost of flight (Rayner and Gordon 1998; Hedenstro¨generates one vortex ring per stroke (Rayner 1979; Ellington1984; Pennycuick 1988; Rayner and Gordon 1998), which would

  18. A Regularized Graph Layout Framework for Dynamic Network Visualization

    E-Print Network [OSTI]

    Xu, Kevin S; Hero, Alfred O

    2012-01-01

    Many real-world networks, including social and information networks, are dynamic structures that evolve over time. Such dynamic networks are typically visualized using a sequence of static graph layouts. In addition to providing a visual representation of the network topology at each time step, the sequence should preserve the mental map between layouts of consecutive time steps to allow a human to interpret the temporal evolution of the network. In this paper, we propose a framework for dynamic network visualization using regularized graph layouts. Regularization encourages stability of the layouts over time, thus preserving the mental map. The proposed framework involves optimizing a modified cost function that augments the cost function of a static graph layout algorithm with a grouping penalty, which encourages nodes to stay close to other nodes belonging to the same group, and a temporal penalty, which encourages smooth movements of the nodes over time. We introduce two dynamic layout algorithms under th...

  19. Oxidation Behavior of In-Flight Molten Aluminum Droplets in the Twin-Wire Electric Arc Thermal Spray Process

    SciTech Connect (OSTI)

    Donna Post Guillen; Brian G. Williams

    2005-05-01

    This paper examines the in-flight oxidation of molten aluminum sprayed in air using the twin-wire electric arc (TWEA) thermal spray process. The oxidation reaction of aluminum in air is highly exothermic and is represented by a heat generation term in the energy balance. Aerodynamic shear at the droplet surface enhances the amount of in-flight oxidation by: (1) promoting entrainment and mixing of the surface oxides within the droplet, and (2) causing a continuous heat generation effect that increases droplet temperature over that of a droplet without internal circulation. This continual source of heat input keeps the droplets in a liquid state during flight. A linear rate law based on the Mott-Cabrera theory was used to estimate the growth of the surface oxide layer formed during droplet flight. The calculated oxide volume fraction of an average droplet at impact agrees well with the experimentally determined oxide content for a typical TWEA-sprayed aluminum coating, which ranges from 3.3 to 12.7%. An explanation is provided for the elevated, nearly constant surface temperature (~ 2000 oC) of the droplets during flight to the substrate and shows that the majority of oxide content in the coating is produced during flight, rather than after deposition.

  20. Interactive visualization of particle beams for accelerator design

    SciTech Connect (OSTI)

    Wilson, Brett; Ma, Kwan-Liu; Qiang, Ji; Ryne, Robert

    2002-01-15

    We describe a hybrid data-representation and rendering technique for visualizing large-scale particle data generated from numerical modeling of beam dynamics. The basis of the technique is mixing volume rendering and point rendering according to particle density distribution, visibility, and the user's instruction. A hierarchical representation of the data is created on a parallel computer, allowing real-time partitioning into high-density areas for volume rendering, and low-density areas for point rendering. This allows the beam to be interactively visualized while preserving the fine structure usually visible only with slow point based rendering techniques.