Sample records for rate aircraft continues

  1. Aircraft

    DOE Patents [OSTI]

    Hibbs, Bart D. (1732 N. Grand Oaks, Altadena, CA 91001); Lissaman, Peter B. S. (3276 Rubio Canyon Rd., Altadena, CA 91001); Morgan, Walter R. (3217 Amarillo Ave., Simi Valley, CA 93063); Radkey, Robert L. (70 Eddystone Ct., Redwood City, CA 94065)

    1998-01-01T23:59:59.000Z

    This disclosure provides a solar rechargeable aircraft that is inexpensive to produce, is steerable, and can remain airborne almost indefinitely. The preferred aircraft is a span-loaded flying wing, having no fuselage or rudder. Travelling at relatively slow speeds, and having a two-hundred foot wingspan that mounts photovoltaic cells on most all of the wing's top surface, the aircraft uses only differential thrust of its eight propellers to turn. Each of five sections of the wing has one or more engines and photovoltaic arrays, and produces its own lift independent of the other sections, to avoid loading them. Five two-sided photovoltaic arrays, in all, are mounted on the wing, and receive photovoltaic energy both incident on top of the wing, and which is incident also from below, through a bottom, transparent surface. The aircraft is capable of a top speed of about ninety miles per hour, which enables the aircraft to attain and can continuously maintain altitudes of up to sixty-five thousand feet. Regenerative fuel cells in the wing store excess electricity for use at night, such that the aircraft can sustain its elevation indefinitely. A main spar of the wing doubles as a pressure vessel that houses hydrogen and oxygen gasses for use in the regenerative fuel cell. The aircraft has a wide variety of applications, which include weather monitoring and atmospheric testing, communications, surveillance, and other applications as well.

  2. Aircraft

    DOE Patents [OSTI]

    Hibbs, B.D.; Lissaman, P.B.S.; Morgan, W.R.; Radkey, R.L.

    1998-09-22T23:59:59.000Z

    This disclosure provides a solar rechargeable aircraft that is inexpensive to produce, is steerable, and can remain airborne almost indefinitely. The preferred aircraft is a span-loaded flying wing, having no fuselage or rudder. Travelling at relatively slow speeds, and having a two-hundred foot wingspan that mounts photovoltaic cells on most all of the wing`s top surface, the aircraft uses only differential thrust of its eight propellers to turn. Each of five sections of the wing has one or more engines and photovoltaic arrays, and produces its own lift independent of the other sections, to avoid loading them. Five two-sided photovoltaic arrays, in all, are mounted on the wing, and receive photovoltaic energy both incident on top of the wing, and which is incident also from below, through a bottom, transparent surface. The aircraft is capable of a top speed of about ninety miles per hour, which enables the aircraft to attain and can continuously maintain altitudes of up to sixty-five thousand feet. Regenerative fuel cells in the wing store excess electricity for use at night, such that the aircraft can sustain its elevation indefinitely. A main spar of the wing doubles as a pressure vessel that houses hydrogen and oxygen gases for use in the regenerative fuel cell. The aircraft has a wide variety of applications, which include weather monitoring and atmospheric testing, communications, surveillance, and other applications as well. 31 figs.

  3. Consideration of the environmental impact of aircraft has become critical in commercial aviation. The continued growth of air traffic has caused increasing demands to reduce aircraft emissions,

    E-Print Network [OSTI]

    Papalambros, Panos

    ABSTRACT Consideration of the environmental impact of aircraft has become critical in commercial. Demands by the public, environ- mentalists, and governments to reduce aircraft environmental impact, have technologies can reduce the environmental impact of air travel per passenger-mile flown. However, with current

  4. Calculation of tunneling rates across a barrier with continuous potential

    E-Print Network [OSTI]

    Sina Khorasani

    2011-04-10T23:59:59.000Z

    Here, approximate, but accurate expressions for calculation of wavefunctions and tunneling rates are obtained using the method of uniform asymptotic expansion.

  5. Microfluidic chemostat and turbidostat with flow rate, oxygen, and temperature control for dynamic continuous culture

    E-Print Network [OSTI]

    Sinskey, Anthony J.

    Microfluidic chemostat and turbidostat with flow rate, oxygen, and temperature control for dynamic are not reasonable. Microfluidics offers a way to address the difficulties relating to conventional continuous.4 Integrating all of these microfluidic components into a working continuous culture system can

  6. Can Desert Dwellers Continue To Afford Lush Lawns: Analyzing Consumer Response to Rate Changes in

    E-Print Network [OSTI]

    Fay, Noah

    Can Desert Dwellers Continue To Afford Lush Lawns: Analyzing Consumer Response to Rate Changes of price and weather on wa- ter demand is important for Arizona. If the effect of weather is not well. In part, this is because few other studies use household data, and instead use data aggregated

  7. On-line continuous unit heat rate measurement using EPRI`s plant monitoring workstation

    SciTech Connect (OSTI)

    Levy, E.; Sarunac, N. [Lehigh Univ., Bethlehem, PA (United States); Schnetzler, D. [Potomac Electric Power Company, Newburg, MD (United States)] [and others

    1995-06-01T23:59:59.000Z

    Software for both the Output/Loss and Boiler-Turbine Cycle Efficiency (BTCE) methods for measuring unit heat rate of pulverized coal units is now available with the latest version of EPRI`s Plant Monitoring Workstation (PMW). Both methods are the latest version of EPRI`s Plant Monitoring Workstation (PMW). Both methods are running continuously and on-line at PEPCO`s Morgantown Unit 2. Comparisons have been made between the results generated by the two methods and with measured plant data for parameters such as coal feed rate and stack gas flow rate. This paper reviews the basis of the two measurement methods, explains how they were implemented at Morgantown Unit 2, and gives results showing how the calculated values compare with measurements for a range of unit operating conditions.

  8. How do I Build Apps with Utility Rate Data (that is continuously...

    Open Energy Info (EERE)

    Rate Kch's picture Submitted by Kch(24) Member 23 April, 2012 - 10:31 utility rate web services There's a need among our users to incorporate the electricity rates from the...

  9. Impact of Continuous Commissioning® on the Energy Star® Rating of Hospitals and Office Buildings

    E-Print Network [OSTI]

    Kulkarni, Aditya Arun

    2012-02-14T23:59:59.000Z

    Re-commissioning, retro-commissioning, Continuous Commissioning® (CC®) are examples of successful systematic processes implemented in buildings to reduce overall building energy consumption, and improve efficiency of systems and their operations...

  10. Fuel Cell Council Working Group on Aircraft and Aircraft Ground...

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

    Council Working Group on Aircraft and Aircraft Ground Support Fuel Cell Applications Fuel Cell Council Working Group on Aircraft and Aircraft Ground Support Fuel Cell Applications...

  11. Debate response: Which rate designs provide revenue stability and efficient price signals? Let the debate continue.

    SciTech Connect (OSTI)

    Boonin, David Magnus

    2009-11-15T23:59:59.000Z

    Let's engage in further discussion that provides solutions and details, not just criticisms and assertions. Let's engage in a meaningful dialogue about the conditions where real-time pricing or critical peak pricing with decoupling or the SFV rate design with a feebate is most effective. (author)

  12. advanced cargo aircraft: Topics by E-print Network

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

    Open Access Theses and Dissertations Summary: ??Radical aircraft and propulsion system architecture changes may be required to continue historic performance improvement...

  13. RATES

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

    Planning & Projects Power Marketing Rates You are here: SN Home page > Power Marketing > RATES Rates and Repayment Services Rates Current Rates FY 15 PRR worksheet (PDF - 31K) FY...

  14. RATES

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

    RATES Rates Document Library SNR Rates Process Calendar (PDF - 171K) Procedures Informal Process Transmission Action Items List (PDF - 144K) Power Action Item List updated on...

  15. RATES

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

    Marketing > RATES RATES Current Rates Past Rates 2006 2007 2008 2009 2010 2011 2012 Rates Schedules Power CV-F13 CPP-2 Transmissions CV-T3 CV-NWT5 PACI-T3 COTP-T3 CV-TPT7 CV-UUP1...

  16. Conceptual aircraft dynamics from inverse aircraft modeling

    E-Print Network [OSTI]

    Ziegler, Gregory E

    1999-01-01T23:59:59.000Z

    This thesis presents a method of construe' ting a nonlinear dynamics model of a theoretical aircraft from the nonlinear batch simulation of an existing aircrew This method provides control law designers with a method of fabricating nonlinear models...

  17. Interactive dynamic aircraft scheduling

    E-Print Network [OSTI]

    Deckwitz, Thomas Anthony

    1984-01-01T23:59:59.000Z

    Introducing recent advances in computer technology to improve aircraft scheduling is investigated. Incorporating interactive graphics, modern database manipulation techniques, and decision support algorithms, the computer ...

  18. A review of extended-range operations by transport aircraft

    E-Print Network [OSTI]

    Simpson, R. W.

    1987-01-01T23:59:59.000Z

    Introduction: The safety of enroute operations of aircraft engaged in public transport has been a continuous concern since the early days of air transportation. There are a variety of inflight emergency situations which ...

  19. Insecticide Exposures on Commercial Aircraft: A Literature Review and Screening Level Assessment

    SciTech Connect (OSTI)

    Maddalena, Randy I.; McKone, Thomas E.

    2008-10-01T23:59:59.000Z

    The objective of this project was to provide initial estimates of the relationship between insecticide use on passenger aircraft and exposure levels present in the cabin environment. The work was initially divided into three tasks including 1) a review of insecticide application practices in commercial aircraft, 2) exploratory measurements of insecticide concentrations in treated aircraft and 3) screening level exposure modeling. Task 1 gathered information that is needed to assess the time-concentration history of insecticides in the airline cabin. The literature review focused on application practices, information about the cabin environment and existing measurements of exposure concentrations following treatment. Information from the airlines was not available for estimating insecticide application rates in the U.S. domestic fleet or for understanding how frequently equipment rotate into domestic routes following insecticide treatment. However, the World Health Organization (WHO) recommends several methods for treating aircraft with insecticide. Although there is evidence that these WHO guidelines may not always be followed, and that practices vary by airline, destination, and/or applicator company, the guidelines in combination with information related to other indoor environments provides a plausible basis for estimating insecticide loading rates on aircraft. The review also found that while measurements of exposure concentrations following simulated aerosol applications are available, measurements following residual treatment of aircraft or applications in domestic aircraft are lacking. Task 2 focused on developing an approach to monitor exposure concentrations in aircraft using a combination of active and passive sampling methods. An existing active sampling approach was intended to provide data immediately following treatment while a passive sampler was developed to provide wider coverage of the fleet over longer sampling periods. The passive sampler, based on a thin-film polymer-coated glass design, was developed specifically for deployment in the airliner ventilation system for long-term unattended monitoring of insecticide loading in the aircraft. Because access was not available for either treated aircraft or treatment records during the course of this study, the development and calibration of the passive samplers was halted prior to completion. Continued development of a field ready passive sampler for insecticides in aircraft would require collaboration with the airline industry to finalize the method for deployment and calibration conditions for the sampler. The Task 3 screening level modeling assessment used a dynamic two-box mass balance model that includes treated surfaces and air to explore the time-concentration history of insecticides in the cabin. The model was parameterized using information gathered during the literature review and run for several different insecticide use scenarios. Chemical degradation or sequestration in the surface compartment and mass transfer from the surface to the air limit the rate at which insecticides are removed from the system. This rate limiting process can result in an accumulation of insecticide in the airliner cabin following repeated applications. The extent of accumulation is a function of the overall persistence of the chemical in the system and the amount of chemical applied during each treatment.

  20. Aircraft as a meteorological sensor

    E-Print Network [OSTI]

    Haak, Hein

    Meteorological Institute 2 | The aircraft as a meteorological sensor Photo cover: A KLM Airbus A330-200 landsAircraft as a meteorological sensor Using Mode-S Enhanced Surveillance data to derive upper air Meteorological Institute 3 | The aircraft as a meteorological sensor Aircraft as a meteorological sensor Using

  1. Solar thermal aircraft

    DOE Patents [OSTI]

    Bennett, Charles L. (Livermore, CA)

    2007-09-18T23:59:59.000Z

    A solar thermal powered aircraft powered by heat energy from the sun. A heat engine, such as a Stirling engine, is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller. The heat engine has a thermal battery in thermal contact with it so that heat is supplied from the thermal battery. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.

  2. Identification of Aircraft Hazards

    SciTech Connect (OSTI)

    K. Ashley

    2006-12-08T23:59:59.000Z

    Aircraft hazards were determined to be potentially applicable to a repository at Yucca Mountain in ''Monitored Geological Repository External Events Hazards Screening Analysis'' (BSC 2005 [DIRS 174235], Section 6.4.1). That determination was conservatively based upon limited knowledge of flight data in the area of concern and upon crash data for aircraft of the type flying near Yucca Mountain. The purpose of this report is to identify specific aircraft hazards that may be applicable to a monitored geologic repository (MGR) at Yucca Mountain, using NUREG-0800, ''Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants'' (NRC 1987 [DIRS 103124], Section 3.5.1.6), as guidance for the inclusion or exclusion of identified aircraft hazards. The intended use of this report is to provide inputs for further screening and analysis of identified aircraft hazards based upon the criteria that apply to Category 1 and Category 2 event sequence analyses as defined in 10 CFR 63.2 [DIRS 176544] (Section 4). The scope of this report includes the evaluation of military, private, and commercial use of airspace in the 100-mile regional setting of the repository at Yucca Mountain with the potential for reducing the regional setting to a more manageable size after consideration of applicable screening criteria (Section 7).

  3. Design of aircraft noise abatement approach procedures for near-term implementation

    E-Print Network [OSTI]

    Ho, Nhut Tan, 1974-

    2005-01-01T23:59:59.000Z

    Advanced aircraft noise abatement approach procedures -- characterized by decelerating, continuous descent approaches using idle thrust, and enabled by flight guidance technologies such as GPS and FMS -- have been shown ...

  4. Aircraft Cabin Environmental Quality Sensors

    SciTech Connect (OSTI)

    Gundel, Lara; Kirchstetter, Thomas; Spears, Michael; Sullivan, Douglas

    2010-05-06T23:59:59.000Z

    The Indoor Environment Department at Lawrence Berkeley National Laboratory (LBNL) teamed with seven universities to participate in a Federal Aviation Administration (FAA) Center of Excellence (COE) for research on environmental quality in aircraft. This report describes research performed at LBNL on selecting and evaluating sensors for monitoring environmental quality in aircraft cabins, as part of Project 7 of the FAA's COE for Airliner Cabin Environmental Research (ACER)1 effort. This part of Project 7 links to the ozone, pesticide, and incident projects for data collection and monitoring and is a component of a broader research effort on sensors by ACER. Results from UCB and LBNL's concurrent research on ozone (ACER Project 1) are found in Weschler et al., 2007; Bhangar et al. 2008; Coleman et al., 2008 and Strom-Tejsen et al., 2008. LBNL's research on pesticides (ACER Project 2) in airliner cabins is described in Maddalena and McKone (2008). This report focused on the sensors needed for normal contaminants and conditions in aircraft. The results are intended to complement and coordinate with results from other ACER members who concentrated primarily on (a) sensors for chemical and biological pollutants that might be released intentionally in aircraft; (b) integration of sensor systems; and (c) optimal location of sensors within aircraft. The parameters and sensors were selected primarily to satisfy routine monitoring needs for contaminants and conditions that commonly occur in aircraft. However, such sensor systems can also be incorporated into research programs on environmental quality in aircraft cabins.

  5. aircraft communication systems: Topics by E-print Network

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

    and the high-speed of aircrafts Jain, Raj 5 Aircraft System Identification Using Artificial Neural Networks Engineering Websites Summary: Aircraft System Identification Using...

  6. aircraft system concept: Topics by E-print Network

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

    aircraft conducting High Volume Valasek, John 4 Aircraft System Identification Using Artificial Neural Networks Engineering Websites Summary: Aircraft System Identification Using...

  7. Illegal Logging Gives EU Massive Eco-Headache With tropical rainforests continuing to disappear at an alarming rate, the EU is partially to

    E-Print Network [OSTI]

    17.04.2008 Illegal Logging Gives EU Massive Eco-Headache With tropical rainforests continuing. The problem of illegal logging is particularly acute in Indonesia, allegedly the world's third largest gases and global warming, rising demand for palm oil has resulted in local companies burning woods

  8. aircraft accidents: Topics by E-print Network

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

    aircraft scheduling MIT - DSpace Summary: Introducing recent advances in computer technology to improve aircraft scheduling is investigated. Incorporating interactive graphics,...

  9. Optimal scheduling of fighter aircraft maintenance

    E-Print Network [OSTI]

    Cho, Philip Y

    2011-01-01T23:59:59.000Z

    The effective scheduling of fighter aircraft maintenance in the Air Force is crucial to overall mission accomplishment. An effective maintenance scheduling policy maximizes the use of maintenance resources and aircraft ...

  10. Maintenance cost studies of present aircraft subsystems

    E-Print Network [OSTI]

    Pearlman, Chaim Herman Shalom

    1966-01-01T23:59:59.000Z

    This report describes two detailed studies of actual maintenance costs for present transport aircraft. The first part describes maintenance costs for jet transport aircraft broken down into subsystem costs according to an ...

  11. Propulsion system concepts for silent aircraft

    E-Print Network [OSTI]

    Manneville, Alexis, 1978-

    2004-01-01T23:59:59.000Z

    The noise emitted by commercial aircraft is a major inhibitor of the growth of commercial air transport and is a critical environmental issue in air transportation. A functionally-silent aircraft is envisioned to achieve ...

  12. Global Mortality Attributable to Aircraft Cruise Emissions

    E-Print Network [OSTI]

    Britter, Rex E.

    Aircraft emissions impact human health though degradation of air quality. The majority of previous analyses of air quality impacts from aviation have considered only landing and takeoff emissions. We show that aircraft ...

  13. Method and apparatus for monitoring aircraft components

    DOE Patents [OSTI]

    Dickens, L.M.; Haynes, H.D.; Ayers, C.W.

    1996-01-16T23:59:59.000Z

    Operability of aircraft mechanical components is monitored by analyzing the voltage output of an electrical generator of the aircraft. Alternative generators, for a turbine-driven rotor aircraft, include the gas producer turbine tachometer generator, the power turbine tachometer generator, and the aircraft systems power producing starter/generator. Changes in the peak amplitudes of the fundamental frequency and its harmonics are correlated to changes in condition of the mechanical components. 14 figs.

  14. Method and apparatus for monitoring aircraft components

    DOE Patents [OSTI]

    Dickens, Larry M. (Oak Ridge, TN); Haynes, Howard D. (Knoxville, TN); Ayers, Curtis W. (Clinton, TN)

    1996-01-01T23:59:59.000Z

    Operability of aircraft mechanical components is monitored by analyzing the voltage output of an electrical generator of the aircraft. Alternative generators, for a turbine-driven rotor aircraft, include the gas producer turbine tachometer generator, the power turbine tachometer generator, and the aircraft systems power producing starter/generator. Changes in the peak amplitudes of the fundamental frequency and its harmonics are correlated to changes in condition of the mechanical components.

  15. AIAA 20033698 Aircraft Gas Turbine Engine

    E-Print Network [OSTI]

    Stanford University

    AIAA 2003­3698 Aircraft Gas Turbine Engine Simulations W. C. Reynolds , J. J. Alonso, and M. Fatica, Reston, VA 20191­4344 #12;AIAA 2003­3698 Aircraft Gas Turbine Engine Simulations W. C. Reynolds , J. J of the flowpath through complete aircraft gas turbines including the compressor, combustor, turbine, and secondary

  16. Continual Learning

    Broader source: Energy.gov [DOE]

    Continual Learning is a change initiative which is used to help develop and grow a learning culture within DOE.

  17. Taxiway Aircraft Traffic Scheduling: A Model and Solution Algorithms

    E-Print Network [OSTI]

    Tian, Chunyu

    2012-10-19T23:59:59.000Z

    -known of these policies are the Ground Delay Progr am and Collaborative Decision Making (CDM). 15 The Ground Delay Program is currently implemented by the Federal Aviation Administration (FAA) to control air traffic when the acceptance rate of the destination... directions, they are referred as intersecting runways. In runway operations, the most important factors that need to be considered include wake vortex separations. Federal Aviation Administration categorizes the aircraft into three classes according...

  18. Approaches to representing aircraft fuel efficiency performance for the purpose of a commercial aircraft certification standard

    E-Print Network [OSTI]

    Yutko, Brian M. (Brian Matthew)

    2011-01-01T23:59:59.000Z

    Increasing concern over the potential harmful effects of green house gas emissions from various sources has motivated the consideration of an aircraft certification standard as one way to reduce aircraft C02 emissions and ...

  19. Approaches to Representing Aircraft Fuel Efficiency Performance for the Purpose of a Commercial Aircraft Certification Standard

    E-Print Network [OSTI]

    Yutko, Brian

    2011-06-27T23:59:59.000Z

    Increasing concern over the potential harmful effects of green house gas emissions from various sources has motivated the consideration of an aircraft certification standard as one way to reduce aircraft CO2 emissions and ...

  20. ANNUAL REPORT 2012 CONTINUING EDUCATION

    E-Print Network [OSTI]

    -13 tuition rates IMAGINING POSSIBILITIES CONNECTING COMMUNITIES2012 SAw TwO BIG UPdATES fOr CONTINUING EdUCATIONANNUAL REPORT 2012 CONTINUING EDUCATION AT THE UNIVERSITY OF UTAH #12;As one of the top knowledge the U) becomes. For well over 100 years, Continuing Education at the University of Utah has been opening

  1. A dynamic stability analysis of an aircraft passing through the trailing vortices of another aircraft

    E-Print Network [OSTI]

    De Santo, Robert James William

    1972-01-01T23:59:59.000Z

    A DYNAMIC STABILITY ANALYSIS OF AN AIRCRAFT PASSING THROUGH THE TRAILING VORTICES OF ANOTHER AIRCRAFT A Thesi~ x ROBERT J. MAE SANTO, JR. Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1972 Major Subject: Aerospace Engineering A DYNAMIC STABILITY ANALYSIS OF AN AIRCRAFT PASSING THROUGH THE TRAILING VORTICES OF ANOTHER AIRCRAFT A Thesis by ROBERT J. W. DE SANTO) JR. Approved as to style...

  2. Continuity Programs

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

    2008-05-08T23:59:59.000Z

    The order provides requirements and responsibilities to ensure that the Department is ready to respond promptly, efficiently, and effectively to a continuity event involving facilities, activities, or operations. No cancellation. Canceled by DOE O 150.1A.

  3. Continuity Programs

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

    2014-03-31T23:59:59.000Z

    The order provides requirements and responsibilities to ensure that the Department is ready to respond promptly, efficiently, and effectively to a continuity event involving facilities, activities, or operations. Cancels DOE O 150.1.

  4. A robust guidance system for aircraft approach and landing

    E-Print Network [OSTI]

    Yu, Ren-Jye

    1999-01-01T23:59:59.000Z

    Aircraft approach and landing are very demanding and risky operational phases compared to other routine flight phases. Statistics show that large percentages of aircraft accidents, especially general aviation (GA) aircraft, occur during these phases...

  5. aircraft system identification: Topics by E-print Network

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

    22 23 24 25 Next Page Last Page Topic Index 1 Aircraft System Identification Using Artificial Neural Networks Engineering Websites Summary: Aircraft System Identification Using...

  6. aircraft maintenance planning: Topics by E-print Network

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

    Plants Websites Summary: 415 Statistical estimation of multiple faults in aircraft gas turbine engines S Sarkar, C Rao of multiple faults in aircraft gas-turbine engines, based...

  7. Probing Emissions of Military Cargo Aircraft: Description of...

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

    Emissions of Military Cargo Aircraft: Description of a Joint Field Measurement Strategic Environmental Research and Probing Emissions of Military Cargo Aircraft: Description of a...

  8. aircraft noise: Topics by E-print Network

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

    technologies. Gundel, Lara 2010-01-01 38 Aircraft Performance: Atmospheric Pressure Energy Storage, Conversion and Utilization Websites Summary: Aircraft Performance:...

  9. aircraft carrier program: Topics by E-print Network

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

    Consumption of an Aircraft Carrier . Open Access Theses and Dissertations Summary: ??Speed and propulsion fuel consumption characteristics of United States aircraft carriers are...

  10. aircraft by speed: Topics by E-print Network

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

    model of a commercial aircraft Fernandez, Thomas 5 Aircraft deconfliction with speed regulation: new models from mixed-integer optimization Computer Technologies and...

  11. aircraft cabin safety: Topics by E-print Network

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

    Window Location on a King Air 200 Aircraft:aerosol.atmos.und.edu) Objective A Raytheon Beechcraft King Air 200 aircraft has been used to obtain Condensation Particle...

  12. air force aircraft: Topics by E-print Network

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

    Window Location on a King Air 200 Aircraft:aerosol.atmos.und.edu) Objective A Raytheon Beechcraft King Air 200 aircraft has been used to obtain Condensation Particle...

  13. aircraft cabin section: Topics by E-print Network

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

    Window Location on a King Air 200 Aircraft:aerosol.atmos.und.edu) Objective A Raytheon Beechcraft King Air 200 aircraft has been used to obtain Condensation Particle...

  14. aircraft cabins: Topics by E-print Network

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

    Window Location on a King Air 200 Aircraft:aerosol.atmos.und.edu) Objective A Raytheon Beechcraft King Air 200 aircraft has been used to obtain Condensation Particle...

  15. aircraft cabin noise: Topics by E-print Network

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

    Window Location on a King Air 200 Aircraft:aerosol.atmos.und.edu) Objective A Raytheon Beechcraft King Air 200 aircraft has been used to obtain Condensation Particle...

  16. aircraft exhaust aerosol: Topics by E-print Network

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

    Window Location on a King Air 200 Aircraft:aerosol.atmos.und.edu) Objective A Raytheon Beechcraft King Air 200 aircraft has been used to obtain Condensation Particle...

  17. aircraft load measurement: Topics by E-print Network

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

    Window Location on a King Air 200 Aircraft:aerosol.atmos.und.edu) Objective A Raytheon Beechcraft King Air 200 aircraft has been used to obtain Condensation Particle...

  18. aircraft structural design: Topics by E-print Network

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

    system for aging aircraft Giurgiutiu, Victor 100 The 2011 Cessna Aircraft CompanyRaytheon Missile Systems DesignBuildFly Competition Flyoff was held at TIMPA Field in...

  19. aircraft cabin environment: Topics by E-print Network

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

    Window Location on a King Air 200 Aircraft:aerosol.atmos.und.edu) Objective A Raytheon Beechcraft King Air 200 aircraft has been used to obtain Condensation Particle...

  20. aircraft deicing fluid: Topics by E-print Network

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

    Cascading in Aircraft Design James Allison(1) , David Walsh(2) , Michael successfully to automotive design, this article introduces the application of ATC to aircraft design, and...

  1. aircraft noise exposure: Topics by E-print Network

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

    paths minimizing aircraft noise d'Orlans, Universit 2 The cost of noise reduction in commercial tilt rotor aircraft MIT - DSpace Summary: The relationship between...

  2. aircraft engine noise: Topics by E-print Network

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

    paths minimizing aircraft noise d'Orlans, Universit 2 The cost of noise reduction in commercial tilt rotor aircraft MIT - DSpace Summary: The relationship between...

  3. Aircraft System Identification Using Artificial Neural Networks

    E-Print Network [OSTI]

    Valasek, John

    Aircraft System Identification Using Artificial Neural Networks Kenton Kirkpatrick , Jim May Jr linear system identification for aircraft using artificial neural net- works. The output of a linear the correct model. In this paper, a new method of system identification is proposed that uses artificial

  4. Emerging NDE Technology for aging aircraft

    SciTech Connect (OSTI)

    Moore, D.G.; Perry, R.L.

    1998-03-01T23:59:59.000Z

    This paper presents an overview of several emerging nondestructive evaluation technologies that are being employed or considered for use to inspect commercial transport, commuter aircraft and military aircraft. An overview of the Federal Aviation Administration (FAA) Airworthiness Assurance NDI Validation Center (AANC) is described and how AANC teams with industry, universities, and other federal entities to assess these technologies.

  5. West Virginia University -Main Campus Student Retention and Graduation Rates

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    West Virginia University - Main Campus Student Retention and Graduation Rates First-Time, Full ---------------------------------------------------------------------Continuation Rates and Cumulative Graduation Rates

  6. Electrical Generation for More-Electric Aircraft Using Solid Oxide Fuel Cells

    SciTech Connect (OSTI)

    Whyatt, Greg A.; Chick, Lawrence A.

    2012-04-01T23:59:59.000Z

    This report examines the potential for Solid-Oxide Fuel Cells (SOFC) to provide electrical generation on-board commercial aircraft. Unlike a turbine-based auxiliary power unit (APU) a solid oxide fuel cell power unit (SOFCPU) would be more efficient than using the main engine generators to generate electricity and would operate continuously during flight. The focus of this study is on more-electric aircraft which minimize bleed air extraction from the engines and instead use electrical power obtained from generators driven by the main engines to satisfy all major loads. The increased electrical generation increases the potential fuel savings obtainable through more efficient electrical generation using a SOFCPU. However, the weight added to the aircraft by the SOFCPU impacts the main engine fuel consumption which reduces the potential fuel savings. To investigate these relationships the Boeing 787­8 was used as a case study. The potential performance of the SOFCPU was determined by coupling flowsheet modeling using ChemCAD software with a stack performance algorithm. For a given stack operating condition (cell voltage, anode utilization, stack pressure, target cell exit temperature), ChemCAD software was used to determine the cathode air rate to provide stack thermal balance, the heat exchanger duties, the gross power output for a given fuel rate, the parasitic power for the anode recycle blower and net power obtained from (or required by) the compressor/expander. The SOFC is based on the Gen4 Delphi planar SOFC with assumed modifications to tailor it to this application. The size of the stack needed to satisfy the specified condition was assessed using an empirically-based algorithm. The algorithm predicts stack power density based on the pressure, inlet temperature, cell voltage and anode and cathode inlet flows and compositions. The algorithm was developed by enhancing a model for a well-established material set operating at atmospheric pressure to reflect the effect of elevated pressure and to represent the expected enhancement obtained using a promising cell material set which has been tested in button cells but not yet used to produce full-scale stacks. The predictions for the effect of pressure on stack performance were based on literature. As part of this study, additional data were obtained on button cells at elevated pressure to confirm the validity of the predictions. The impact of adding weight to the 787-8 fuel consumption was determined as a function of flight distance using a PianoX model. A conceptual design for a SOFC power system for the Boeing 787 is developed and the weight estimated. The results indicate that the power density of the stacks must increase by at least a factor of 2 to begin saving fuel on the 787 aircraft. However, the conceptual design of the power system may still be useful for other applications which are less weight sensitive.

  7. Statistical estimation of multiple faults in aircraft gas turbine engines

    E-Print Network [OSTI]

    Ray, Asok

    415 Statistical estimation of multiple faults in aircraft gas turbine engines S Sarkar, C Rao of multiple faults in aircraft gas-turbine engines, based on a statistical pattern recognition tool called commercial aircraft engine. Keywords: aircraft propulsion, gas turbine engines, multiple fault estimation

  8. Development of an ultrasonic pulse-echo (UPE) technique for aircraft icing studies

    SciTech Connect (OSTI)

    Liu, Yang; Hu, Hui [Department of Aerospace Engineering, Iowa State University, 2271 Howe Hall, Room 1200, Ames, IA 50011 (United States); Chen, Wen-Li [Department of Aerospace Engineering, Iowa State University, 2271 Howe Hall, Room 1200, Ames, IA 50011 (United States); School of Civil Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090 (China); Bond, Leonard J. [Department of Aerospace Engineering, Iowa State University, 2271 Howe Hall, Room 1200, Ames, IA 50011 (United States); Center for Nondestructive Evaluation, Iowa State University, 1915 Scholl Road, 151 ASC II, Ames, IA 50011 (United States)

    2014-02-18T23:59:59.000Z

    Aircraft operating in some cold weather conditions face the risk of icing. Icing poses a threat to flight safety and its management is expensive. Removing light frost on a clear day from a medium-size business jet can cost $300, heavy wet snow removal can cost $3,000 and removal of accumulated frozen/freezing rain can cost close to $10,000. Understanding conditions that lead to severe icing events is important and challenging. When an aircraft or rotorcraft flies in a cold climate, some of the super cooled droplets impinging on exposed aircraft surfaces may flow along the surface prior to freezing and give various forms and shapes of ice. The runback behavior of a water film on an aircraft affects the morphology of ice accretion and the rate of formation. In this study, we report the recent progress to develop an Ultrasonic Pulse-Echo (UPE) technique to provide real-time thickness distribution measurements of surface water flows driven by boundary layer airflows for aircraft icing studies. A series of initial experimental investigations are conducted in an ice wind tunnel employing an array of ultrasonic transducers placed underneath the surface of a flat plate. The water runback behavior on the plate is evaluated by measuring the thickness profile variation of the water film along the surface by using the UPE technique under various wind speed and flow rate conditions.

  9. Theoretical full power correction factors as related to changes in ambient temperature, pressure and absolute humidity for aircraft turbine engines

    E-Print Network [OSTI]

    Raphael, Michel Antoun

    1969-01-01T23:59:59.000Z

    IN AMBIENT TEMPERATURE, PRESSURF. AND ABSOLUTE HUMIDITY FOR AIRCRAFT TURBINE ENGINES (August 1969) Michael Antoun Raphael B. S. (Mechanical Engineering) Texas A&M University Directed by: Professor Stanley H, Lowy ABSTRACT Power losses in aircraft gas... rated at standard atmospheric conditions (i. e, ambient temperature 69 F 3'Fend atmospheric pressure 29. 92 in. Hg. dry) . Obviously this same turbine will not be exposed to such standard conditions; therefore we have a change in power directly...

  10. continuity program

    National Nuclear Security Administration (NNSA)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysisDarby Dietrich5 |0/%2A en6/%2A en Continuity

  11. Aircraft System Identification Using Artificial Neural Networks

    E-Print Network [OSTI]

    Valasek, John

    Aircraft System Identification Using Artificial Neural Networks Kenton Kirkpatrick Jim May Jr. John Meeting January 9, 2013 Compos Volatus #12;Overview Motivation System Identification Artificial Neural Networks 2 Artificial Neural Networks ANNSID Conclusions and Open Challenges #12;Motivation 3 #12

  12. Scaling considerations for small aircraft engines

    E-Print Network [OSTI]

    Chan, Nicholas Y. S

    2008-01-01T23:59:59.000Z

    Small aircraft engines traditionally have poorer performance compared to larger engines, which until recently, has been a factor that outweighed the aerodynamic benefits of commoditized and distributed propulsion. Improvements ...

  13. Emerging nondestructive inspection methods for aging aircraft

    SciTech Connect (OSTI)

    Beattie, A; Dahlke, L; Gieske, J [and others

    1994-01-01T23:59:59.000Z

    This report identifies and describes emerging nondestructive inspection (NDI) methods that can potentially be used to inspect commercial transport and commuter aircraft for structural damage. The nine categories of emerging NDI techniques are: acoustic emission, x-ray computed tomography, backscatter radiation, reverse geometry x-ray, advanced electromagnetics, including magnetooptic imaging and advanced eddy current techniques, coherent optics, advanced ultrasonics, advanced visual, and infrared thermography. The physical principles, generalized performance characteristics, and typical applications associated with each method are described. In addition, aircraft inspection applications are discussed along with the associated technical considerations. Finally, the status of each technique is presented, with a discussion on when it may be available for use in actual aircraft maintenance programs. It should be noted that this is a companion document to DOT/FAA/CT-91/5, Current Nondestructive Inspection Methods for Aging Aircraft.

  14. Aircraft Cabin Environmental Quality Sensors

    E-Print Network [OSTI]

    Gundel, Lara

    2010-01-01T23:59:59.000Z

    O3.pdf Ozone_Optec _Battelle_EVS_Optec2008.pdf Ref A1.13studies (NAS/ NRC, ASHRAE/Battelle), and continuing byof the ASHRAE-sponsored Battelle study collected passenger

  15. CONTINUATION, O DOCUMENT BEING CONTINUED

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWPSuccess StoriesFebruary 26, 2014,Lab SeptemberCONTINUATION

  16. An Aircraft Electric Power Testbed for Validating Automatically Synthesized Reactive Control Protocols

    E-Print Network [OSTI]

    Xu , Huan

    An Aircraft Electric Power Testbed for Validating Automatically Synthesized Reactive Control reactive synthesis; testbed; aircraft electric power system 1. INTRODUCTION AND MOTIVATION Aircraft of Pennsylvania utopcu@seas.upenn.edu ABSTRACT Modern aircraft increasingly rely on electric power for sub

  17. Technical evaluation of Russian aircraft stealth coating and structural materials

    SciTech Connect (OSTI)

    Gac, F.D.; Young, A.T. Jr.; Migliori, A.

    1996-10-01T23:59:59.000Z

    Treating aircraft, missiles, and ships with materials that absorb electromagnetic energy continues to be an important technique for reducing a vehicle`s radar cross section (RCS) and improving tis combat effectiveness and survivability. Work at the Russian Scientific Center for Applied Problems in Electrodynamics (SCAPE) has produced and experimentally validated an accurate predictor of the interaction of electromagnetic radiation with discontinuous composite materials consisting of magnetic and/or dielectric particles dispersed in a non-conductive matrix (i.e. percolation systems). The primary purpose of this project was to analyze rf-absorbing coatings and validate manufacturing processes associated with the Russian percolation system designs. An additional objective was to apply the percolation methodology toward a variety of civilian applications by transferring the technology to US industry.

  18. Rates & Repayment

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

    Environmental Review-NEPA Financial Data Operations Planning & Projects Power Marketing Rates Rate Adjustments Transmission Ancillary Services Rates WAPA-137 Rate Order Rates and...

  19. The cost of noise reduction in commercial tilt rotor aircraft

    E-Print Network [OSTI]

    Faulkner, Henry B.

    1974-01-01T23:59:59.000Z

    The relationship between direct operating cost and departure noise annoyance was developed for commercial tilt rotor aircraft. This was accomplished by generating a series of tilt rotor aircraft designs to meet various ...

  20. aircraft ground operations: Topics by E-print Network

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

    of a Tilt Rotor Aircraft Wake in Ground Effect, (May 19B2) Michael Louis Frey III, B. S. , Texas A... Frey, Michael Louis 2012-06-07 22 Aircraft Ground Traffic Optimization...

  1. SPLAT II: An Aircraft Compatible, Ultra-Sensitive, High Precision...

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

    SPLAT II: An Aircraft Compatible, Ultra-Sensitive, High Precision Instrument for In-Situ Characterization of the Size and SPLAT II: An Aircraft Compatible, Ultra-Sensitive, High...

  2. Detection of aeroacoustic sound sources on aircraft and wind turbines

    E-Print Network [OSTI]

    Twente, Universiteit

    Detection of aeroacoustic sound sources on aircraft and wind turbines Stefan Oerlemans #12;Detection of aeroacoustic sound sources on aircraft and wind turbines S. Oerlemans Thesis University;DETECTION OF AEROACOUSTIC SOUND SOURCES ON AIRCRAFT AND WIND TURBINES PROEFSCHRIFT ter verkrijging van de

  3. Atomizing, continuous, water monitoring module

    DOE Patents [OSTI]

    Thompson, Cyril V. (Knoxville, TN); Wise, Marcus B. (Kingston, TN)

    1997-01-01T23:59:59.000Z

    A system for continuously analyzing volatile constituents of a liquid is described. The system contains a pump for continuously pumping the liquid to be tested at a predetermined flow rate into an extracting container through a liquid directing tube having an orifice at one end and positioned to direct the liquid into the extracting container at a flow rate sufficient to atomize the liquid within the extracting container. A continuous supply of helium carrier gas at a predetermined flow rate is directed through a tube into the extracting container and co-mingled with the atomized liquid to extract the volatile constituents contained within the atomized liquid. The helium containing the extracted volatile constituents flows out of the extracting container into a mass spectrometer for an analysis of the volatile constituents of the liquid.

  4. Atomizing, continuous, water monitoring module

    DOE Patents [OSTI]

    Thompson, C.V.; Wise, M.B.

    1997-07-08T23:59:59.000Z

    A system for continuously analyzing volatile constituents of a liquid is described. The system contains a pump for continuously pumping the liquid to be tested at a predetermined flow rate into an extracting container through a liquid directing tube having an orifice at one end and positioned to direct the liquid into the extracting container at a flow rate sufficient to atomize the liquid within the extracting container. A continuous supply of helium carrier gas at a predetermined flow rate is directed through a tube into the extracting container and co-mingled with the atomized liquid to extract the volatile constituents contained within the atomized liquid. The helium containing the extracted volatile constituents flows out of the extracting container into a mass spectrometer for an analysis of the volatile constituents of the liquid. 3 figs.

  5. Aircraft Integrity and Reliability Carlos Ferregut

    E-Print Network [OSTI]

    Kreinovich, Vladik

    @unm.edu Abstract. In his recent paper "Probability theory needs an infusion of fuzzy logic to enhance its ability to deal with real-world problems", L. A. Zadeh explains that probability theory needs an infusion of fuzzy of a real-world problem for which such an infusion is indeed successful: the problems of aircraft integrity

  6. A Ubiquitous Computing Environment for Aircraft Maintenance

    E-Print Network [OSTI]

    practical experience from a project that was carried out in cooperation with an aircraft company1 and SAP SI level of usability. A scenario, a systems architecture, and maintenance applications are presented Descriptors J.7 [Computer Applications]: Computers in Other Systems ­ industrial control, process control

  7. The multi-stop aircraft routing problem 

    E-Print Network [OSTI]

    Garci?a Castan?eda, Salvador

    1995-01-01T23:59:59.000Z

    of passengers over the route. The objective function is the net result of the difference between revenues per passenger carried and aircraft operating costs. The model takes the form of a 0/1 mixed integer linear program and describe formulation refinements...

  8. Computational fire modeling for aircraft fire research

    SciTech Connect (OSTI)

    Nicolette, V.F.

    1996-11-01T23:59:59.000Z

    This report summarizes work performed by Sandia National Laboratories for the Federal Aviation Administration. The technical issues involved in fire modeling for aircraft fire research are identified, as well as computational fire tools for addressing those issues, and the research which is needed to advance those tools in order to address long-range needs. Fire field models are briefly reviewed, and the VULCAN model is selected for further evaluation. Calculations are performed with VULCAN to demonstrate its applicability to aircraft fire problems, and also to gain insight into the complex problem of fires involving aircraft. Simulations are conducted to investigate the influence of fire on an aircraft in a cross-wind. The interaction of the fuselage, wind, fire, and ground plane is investigated. Calculations are also performed utilizing a large eddy simulation (LES) capability to describe the large- scale turbulence instead of the more common k-{epsilon} turbulence model. Additional simulations are performed to investigate the static pressure and velocity distributions around a fuselage in a cross-wind, with and without fire. The results of these simulations provide qualitative insight into the complex interaction of a fuselage, fire, wind, and ground plane. Reasonable quantitative agreement is obtained in the few cases for which data or other modeling results exist Finally, VULCAN is used to quantify the impact of simplifying assumptions inherent in a risk assessment compatible fire model developed for open pool fire environments. The assumptions are seen to be of minor importance for the particular problem analyzed. This work demonstrates the utility of using a fire field model for assessing the limitations of simplified fire models. In conclusion, the application of computational fire modeling tools herein provides both qualitative and quantitative insights into the complex problem of aircraft in fires.

  9. The multi-stop aircraft routing problem

    E-Print Network [OSTI]

    Garci?a Castan?eda, Salvador

    1995-01-01T23:59:59.000Z

    Approved as to style and content by: Alberto Garcia-Diaz (Chair of Committee) Ce O. ave em ) Ta-Hsin Li (Member) ay Kuo (Head of Departement) December 1995 Major Subject: Industrial Engineering ABSTRACT The Multi-Stop Aircraft Routing Problem.... (December 1995) Salvador Garcia, B. S. , Nuevo Leon State University; M. S. , Monterrey Tech Chair of Advisory Committee: Dr. Alberto Garcia-Diaz We study the multi-stop aircrafi routing problem, determining the sequence of stops and the number...

  10. Continuous pressure letdown system

    DOE Patents [OSTI]

    Sprouse, Kenneth M.; Matthews, David R.; Langowski, Terry

    2010-06-08T23:59:59.000Z

    A continuous pressure letdown system connected to a hopper decreases a pressure of a 2-phase (gas and solid) dusty gas stream flowing through the system. The system includes a discharge line for receiving the dusty gas from the hopper, a valve, a cascade nozzle assembly positioned downstream of the discharge line, a purge ring, an inert gas supply connected to the purge ring, an inert gas throttle, and a filter. The valve connects the hopper to the discharge line and controls introduction of the dusty gas stream into the discharge line. The purge ring is connected between the discharge line and the cascade nozzle assembly. The inert gas throttle controls a flow rate of an inert gas into the cascade nozzle assembly. The filter is connected downstream of the cascade nozzle assembly.

  11. Using doppler radar images to estimate aircraft navigational heading error

    DOE Patents [OSTI]

    Doerry, Armin W. (Albuquerque, NM); Jordan, Jay D. (Albuquerque, NM); Kim, Theodore J. (Albuquerque, NM)

    2012-07-03T23:59:59.000Z

    A yaw angle error of a motion measurement system carried on an aircraft for navigation is estimated from Doppler radar images captured using the aircraft. At least two radar pulses aimed at respectively different physical locations in a targeted area are transmitted from a radar antenna carried on the aircraft. At least two Doppler radar images that respectively correspond to the at least two transmitted radar pulses are produced. These images are used to produce an estimate of the yaw angle error.

  12. aircraft conceptual design: Topics by E-print Network

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

    ... Ausrotas, Raymond A. 1974-01-01 469 Optimal Load Management System for Aircraft Electric Power Distribution University of California eScholarship Repository Summary: to the...

  13. aircraft emission inventories: Topics by E-print Network

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

    Raymond A. 1974-01-01 340 Optimal Load Management System for Aircraft Electric Power Distribution University of California eScholarship Repository Summary: to the...

  14. aircraft engine crash: Topics by E-print Network

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

    Aircraft Accident," Crash Injury Res., Phoenix, Arizona (October 18, 1961). 4. Bruggink, G. M. eta., "Injury Reduction Trends in Agricultural Aviation," A m-MnM 35,...

  15. aircraft crash impact: Topics by E-print Network

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

    Aircraft Accident," Crash Injury Res., Phoenix, Arizona (October 18, 1961). 4. Bruggink, G. M. eta., "Injury Reduction Trends in Agricultural Aviation," A m-MnM 35,...

  16. aircraft accidentally crashing: Topics by E-print Network

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

    Aircraft Accident," Crash Injury Res., Phoenix, Arizona (October 18, 1961). 4. Bruggink, G. M. eta., "Injury Reduction Trends in Agricultural Aviation," A m-MnM 35,...

  17. aircraft noise annoyance: Topics by E-print Network

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

    including safety aspects. The investigations and experiments in the multinational European project Vormann, Matthias 14 APPENDIX E REVIEW OF EFFECTS OF AIRCRAFT NOISE, CHAFF,...

  18. Electrical Generation for More-Electric Aircraft using Solid...

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

    Aircraft using Solid Oxide Fuel Cells More Documents & Publications Solid Oxide Fuel Cell (SOFC) Technology for Greener Airplanes Solid Oxide Fuel Cell and Power System...

  19. aircraft integrated vehicle: Topics by E-print Network

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

    C. Reynolds , J. J of the flowpath through complete aircraft gas turbines including the compressor, combustor, turbine, and secondary Stanford University 160 A Ubiquitous...

  20. aircraft fuel conservation: Topics by E-print Network

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

    concern over the potential harmful effects of green house gas emissions from various sources has motivated the consideration of an aircraft certification standard as one way to...

  1. Aging Aircraft NDI Development and Demonstration Center (AANC): An overview

    SciTech Connect (OSTI)

    Walter, P.L.

    1991-01-01T23:59:59.000Z

    A major center with emphasis on validation of nondestructive inspection techniques for aging aircraft, the Aging Aircraft NDI Development and Demonstration Center (AANC), has been funded by the FAA at Sandia National Laboratories. The Center has been assigned specific tasks in developing techniques for the nondestructive inspection of static engine parts, assessing inspection reliability (POD experiments), developing test beds for nondestructive inspection validation, maintaining a FAA library of characterized aircraft structural test specimens, and leasing a hangar to house a high flight cycle transport aircraft for use as a full scale test bed. 3 refs.

  2. aircraft composite structures: Topics by E-print Network

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

    Aircraft. Open Access Theses and Dissertations Summary: ??High-performance composite materials exhibit both anisotropic strength and stiffness properties. These anisotropic...

  3. Electrical Generation for More-Electric Aircraft using Solid...

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

    by Pacific Northwest National Laboratory, examines approaches to providing electrical power on board commercial aircraft using solid oxide fuel (SOFC) technology. The focus of...

  4. aircraft nacelle structures: Topics by E-print Network

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

    VICTOR field opens the way for a comprehensive multifunctional damage detection system for aging aircraft Management System (SHMS) architecture for the aging military...

  5. aircraft fuel systems: Topics by E-print Network

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

    Structure Background and Program Overview 135 The 2011 Cessna Aircraft CompanyRaytheon Missile Systems DesignBuildFly Competition Flyoff was held at TIMPA Field in...

  6. aircraft propulsion systems: Topics by E-print Network

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

    College of Nuclear Science Zha, Gecheng 160 The 2011 Cessna Aircraft CompanyRaytheon Missile Systems DesignBuildFly Competition Flyoff was held at TIMPA Field in...

  7. aircraft production: Topics by E-print Network

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

    low ozone 65 Process improvements during production ramp-up MIT - DSpace Summary: Raytheon Company is currently ramping up production radars for a fighter aircraft. This...

  8. aircraft engine missile: Topics by E-print Network

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

    turbine, and secondary Stanford University 3 The 2011 Cessna Aircraft CompanyRaytheon Missile Systems DesignBuildFly Competition Flyoff was held at TIMPA Field in...

  9. aircraft missiles weapons: Topics by E-print Network

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

    Candidate, Computer Science Dept Rasheed, Khaled 2 The 2011 Cessna Aircraft CompanyRaytheon Missile Systems DesignBuildFly Competition Flyoff was held at TIMPA Field in...

  10. Continuous flow separation techniques for microchemical synthesis

    E-Print Network [OSTI]

    Kralj, Jason G

    2006-01-01T23:59:59.000Z

    Performing multistep microchemical synthesis requires many techniques from combining micromixers in series to the development of continuous microfluidic separation tools. Safety, high heat and mass transfer rates, and cost ...

  11. Realistic Probability Estimates For Destructive Overpressure Events In Heated Center Wing Tanks Of Commercial Jet Aircraft

    SciTech Connect (OSTI)

    Alvares, N; Lambert, H

    2007-02-07T23:59:59.000Z

    The Federal Aviation Administration (FAA) identified 17 accidents that may have resulted from fuel tank explosions on commercial aircraft from 1959 to 2001. Seven events involved JP 4 or JP 4/Jet A mixtures that are no longer used for commercial aircraft fuel. The remaining 10 events involved Jet A or Jet A1 fuels that are in current use by the commercial aircraft industry. Four fuel tank explosions occurred in center wing tanks (CWTs) where on-board appliances can potentially transfer heat to the tank. These tanks are designated as ''Heated Center Wing Tanks'' (HCWT). Since 1996, the FAA has significantly increased the rate at which it has mandated airworthiness directives (ADs) directed at elimination of ignition sources. This effort includes the adoption, in 2001, of Special Federal Aviation Regulation 88 of 14 CFR part 21 (SFAR 88 ''Fuel Tank System Fault Tolerance Evaluation Requirements''). This paper addresses SFAR 88 effectiveness in reducing HCWT ignition source probability. Our statistical analysis, relating the occurrence of both on-ground and in-flight HCWT explosions to the cumulative flight hours of commercial passenger aircraft containing HCWT's reveals that the best estimate of HCWT explosion rate is 1 explosion in 1.4 x 10{sup 8} flight hours. Based on an analysis of SFAR 88 by Sandia National Laboratories and our independent analysis, SFAR 88 reduces current risk of historical HCWT explosion by at least a factor of 10, thus meeting an FAA risk criteria of 1 accident in billion flight hours. This paper also surveys and analyzes parameters for Jet A fuel ignition in HCWT's. Because of the paucity of in-flight HCWT explosions, we conclude that the intersection of the parameters necessary and sufficient to result in an HCWT explosion with sufficient overpressure to rupture the HCWT is extremely rare.

  12. PCA, Continuous, & Epidural Narcotic Infusion Documentation (07.2013) Documentation

    E-Print Network [OSTI]

    Oliver, Douglas L.

    PCA, Continuous, & Epidural Narcotic Infusion Documentation (07.2013) Documentation Required Continuous Narcotic Infusions PCA Only PCA + Basal (Continuous) Infusion Epidural and Epidural PCA Continuous Verification AND Documentation of Dose / Rate of Infusion of · Every 4 hours (may be done as part of change

  13. E-Print Network 3.0 - aircraft scanner mapping Sample Search...

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

    MAP by several aircraft. With a few... aircraft is ... Source: NASA - Center-TRACTION Automation System (CTAS) Collection: Energy Storage, Conversion and Utilization 8 Mapping...

  14. E-Print Network 3.0 - aircraft exhaust sulfur Sample Search Results

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

    gases FAA, 2005. Water in the aircraft exhaust at altitude may have a greenhouse effect... . Aircraft exhaust emissions are calculated for the ... Source: Ecole...

  15. E-Print Network 3.0 - army aircraft Sample Search Results

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

    Sector Summary: of rotary wing DOD aircraft, aircraft crash analysis, and lubricating oil analysis. Tobyhanna Army Depot... Aeronautics and Space Administration (NASA)....

  16. Exploration and assessment of the environmental design space for commercial aircraft and future technologies

    E-Print Network [OSTI]

    Barter, Garrett E. (Garrett Ehud), 1979-

    2004-01-01T23:59:59.000Z

    Design and regulatory initiatives for aircraft noise and emissions should appreciate the integrated nature of the aircraft system. The computational ability exists to consider environmental and traditional performance ...

  17. Wind parameters extraction from aircraft trajectories C. Hurtera,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Wind parameters extraction from aircraft trajectories C. Hurtera, , R. Alligiera,b , D. Gianazzaa traffic controllers need to know the current wind magnitude and direction since they impact every flying vessel. The wind may accel- erate or slow down an aircraft, depending on its relative direction

  18. Fault prediction in aircraft engines using Self-Organizing Maps

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Fault prediction in aircraft engines using Self- Organizing Maps Marie Cottrell1 , Patrice Gaubert1. Aircraft engines are designed to be used during several tens of years. Their maintenance is a challenging and costly task, for obvious security reasons. The goal is to ensure a proper operation of the engines

  19. Wireless Sensor Network for Aircraft Health Monitoring Honeywell Labs

    E-Print Network [OSTI]

    Minnesota, University of

    Wireless Sensor Network for Aircraft Health Monitoring Haowei Bai Honeywell Labs 3660 Technology of applications. The objective of this article is to describe a wireless sensor network for monitoring of the health of aircraft engines. We describe the architec- ture of the wireless sensor network along with how

  20. Ris-R-1324(EN) Multi Aircraft Training Environment

    E-Print Network [OSTI]

    Risø-R-1324(EN) MATE Multi Aircraft Training Environment G. Hauland, T. Bove, H.B. Andersen and S National Laboratory, Roskilde January 2002 #12;Abstract A medium fidelity and low cost training device for pilots, called the Multi Aircraft Training Environment (MATE), is developed to replace other low fidelity

  1. Symbolic identification for fault detection in aircraft gas turbine engines

    E-Print Network [OSTI]

    Ray, Asok

    Symbolic identification for fault detection in aircraft gas turbine engines S Chakraborty, S Sarkar and computationally inexpensive technique of component-level fault detection in aircraft gas-turbine engines identification, gas turbine engines, language-theoretic analysis 1 INTRODUCTION The propulsion system of modern

  2. A New Methodology for Aircraft HVDC Power Systems design

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A New Methodology for Aircraft HVDC Power Systems design D. Hernández, M. Sautreuil, N. Retière, D-mail: olivier.sename@gipsa-lab.inpg.fr Abstract ­ A new methodology for aircraft HVDC power systems design

  3. Data Mining For Prediction of Aircraft Component Replacement

    E-Print Network [OSTI]

    Matwin, Stan

    Data Mining For Prediction of Aircraft Component Replacement Sylvain Letourneau1 Fazel Famili1 Stan the number of delays, and increasing the overall level of safety. Several data mining techniques exist from the data obtained during the operation and maintenance of aircraft is extremely challenging. Di

  4. Rate Schedules

    Broader source: Energy.gov [DOE]

    One of the major responsibilities of Southeastern is to design, formulate, and justify rate schedules. Repayment studies prepared by the agency determine revenue requirements and appropriate rate...

  5. Frequency Analysis of Aircraft hazards for License Application

    SciTech Connect (OSTI)

    K. Ashley

    2006-10-24T23:59:59.000Z

    The preclosure safety analysis for the monitored geologic repository at Yucca Mountain must consider the hazard that aircraft may pose to surface structures. Relevant surface structures are located beneath the restricted airspace of the Nevada Test Site (NTS) on the eastern slope of Yucca Mountain, near the North Portal of the Exploratory Studies Facility Tunnel (Figure 1). The North Portal is located several miles from the Nevada Test and Training Range (NTTR), which is used extensively by the U.S. Air Force (USAF) for training and test flights (Figure 1). The NTS airspace, which is controlled by the U.S. Department of Energy (DOE) for NTS activities, is not part of the NTTR. Agreements with the DOE allow USAF aircraft specific use of the airspace above the NTS (Reference 2.1.1 [DIRS 103472], Section 3.1.1 and Appendix A, Section 2.1; and Reference 2.1.2 [DIRS 157987], Sections 1.26 through 1.29). Commercial, military, and general aviation aircraft fly within several miles to the southwest of the repository site in the Beatty Corridor, which is a broad air corridor that runs approximately parallel to U.S. Highway 95 and the Nevada-California border (Figure 2). These aircraft and other aircraft operations are identified and described in ''Identification of Aircraft Hazards'' (Reference 2.1.3, Sections 6 and 8). The purpose of this analysis is to estimate crash frequencies for aircraft hazards identified for detailed analysis in ''Identification of Aircraft Hazards'' (Reference 2.1.3, Section 8). Reference 2.1.3, Section 8, also identifies a potential hazard associated with electronic jamming, which will be addressed in this analysis. This analysis will address only the repository and not the transportation routes to the site. The analysis is intended to provide the basis for: (1) Categorizing event sequences related to aircraft hazards; (2) Identifying design or operational requirements related to aircraft hazards.

  6. Leading the way in aircraft noise reduction Aircraft noise threatens the growth of the important UK aerospace manufacturing sector.

    E-Print Network [OSTI]

    Sóbester, András

    of Computational Aero-acoustics, Phil Joseph, Professor of acoustical engineering and turbo-machinery noise and Dr method for reducing fan noise, the largest single source of engine noise both at take-off and approachLeading the way in aircraft noise reduction Aircraft noise threatens the growth of the important UK

  7. Continuity of Operations

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

    2005-01-14T23:59:59.000Z

    The notice defines requirements and responsibilities for continuity of operations planning within the DOE to ensure the capability to continue essential Departmental functions across a wide range of all hazard emergencies. Does not cancel other directives.

  8. Continuous magnetic separator and process

    DOE Patents [OSTI]

    Oder, Robin R. (Export, PA); Jamison, Russell E. (Lower Burrell, PA)

    2008-04-22T23:59:59.000Z

    A continuous magnetic separator and process for separating a slurry comprising magnetic particles into a clarified stream and a thickened stream. The separator has a container with a slurry inlet, an overflow outlet for the discharge of the clarified slurry stream, and an underflow outlet for the discharge of a thickened slurry stream. Magnetic particles in the slurry are attracted to, and slide down, magnetic rods within the container. The slurry is thus separated into magnetic concentrate and clarified slurry. Flow control means can be used to control the ratio of the rate of magnetic concentrate to the rate of clarified slurry. Feed control means can be used to control the rate of slurry feed to the slurry inlet.

  9. Impact Analyses and Tests of Metal Cask Considering Aircraft Engine Crash - 12308

    SciTech Connect (OSTI)

    Lee, Sanghoon; Choi, Woo-Seok; Kim, Ki-Young; Jeon, Je-Eon; Seo, Ki-Seog [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2012-07-01T23:59:59.000Z

    The structural integrity of a dual purpose metal cask currently under development by the Korea Radioactive Waste Management Cooperation (KRMC) is evaluated through analyses and tests under a high-speed missile impact considering the targeted aircraft crash conditions. The impact conditions were carefully chosen through a survey on accident cases and recommendations from the literature. The missile impact velocity was set at 150 m/s, and two impact orientations were considered. A simplified missile simulating a commercial aircraft engine is designed from an impact load history curve provided in the literature. In the analyses, the focus is on the evaluation of the containment boundary integrity of the metal cask. The analyses results are compared with the results of tests using a 1/3 scale model. The results show very good agreements, and the procedure and methodology adopted in the structural analyses are validated. While the integrity of the cask is maintained in one evaluation where the missile impacts the top side of the free standing cask, the containment boundary is breached in another case in which the missile impacts the center of the cask lid in a perpendicular orientation. A safety assessment using a numerical simulation of an aircraft engine crash into spent nuclear fuel storage systems is performed. A commercially available explicit finite element code is utilized for the dynamic simulation, and the strain rate effect is included in the modeling of the materials used in the target system and missile. The simulation results show very good agreement with the test results. It is noted that this is the first test considering an aircraft crash in Korea. (authors)

  10. Certification of an agricultural spray aircraft on ethanol fuel

    SciTech Connect (OSTI)

    Shauck, M.E.; Zanin, M.G. [Baylor Univ., Waco, TX (United States)

    1994-12-31T23:59:59.000Z

    A Piper Pawnee, one of the most common agricultural spray aircraft, is currently undergoing Federal Aviation Administration (FAA) certification to allow the use of denatured ethanol as its fuel. This certification is part of a broader effort to introduce ethanol as a replacement for aviation gasoline. Various reasons brought about the choice of an agricultural spray aircraft to be certified on ethanol. One is the minimization of initial fuel distribution problems. Agricultural aviation often requires only single fuel storage since most of the flying is local. Additionally, corn-produced ethanol is the natural fuel of choice for farming operations. The increased power developed on ethanol compared to aviation gasoline (avgas) is very important when operating heavily loaded spray aircraft at very low altitudes. The power-plant, a Lycoming IO-540, is already certified. The aircraft is currently flying on ethanol in order to satisfy the airframe requirements. The effort is being supported by a consortium of organizations of corn-producing states. Upon completion of certification, the aircraft will be demonstrated around the mid-western states. Certification will allow the use of the aircraft in the commercial arena. Many mid-western agricultural spray operations and ag-pilots have already expressed interest in converting their aircraft to ethanol fuel.

  11. On optimization of sensor selection for aircraft gas turbine engines Ramgopal Mushini

    E-Print Network [OSTI]

    Simon, Dan

    for generating an optimal sensor set [3]. 3. Aircraft gas turbine engines An aircraft gas turbine engineOn optimization of sensor selection for aircraft gas turbine engines Ramgopal Mushini Cleveland sets for the problem of aircraft gas turbine engine health parameter estimation. The performance metric

  12. Continuous Commissioning Measures

    E-Print Network [OSTI]

    Yugua, C.

    2014-01-01T23:59:59.000Z

    ESL-KT-14-11-38 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 Agenda 1. Introduction and Agenda 2. Definitions: Types of Commissioning 3. Introduction to Continuous Commissioning® 4. Tools and Measurements Coffee Break... 5. Continuous Commissioning Measures 6. Measurement and Verification 2 ESL-KT-14-11-38 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 Continuous Commissioning® Measures Joseph T. Martinez, PCC Carlos Yagua, PE Hiroko...

  13. aircraft fuels: Topics by E-print Network

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

    for ... Mody, Pritesh (Pritesh Chetan) 2010-01-01 9 2006-01-3092 Test Results for a Fuel Cell-Powered Demonstration Aircraft Copyright 2006 SAE International CiteSeer...

  14. M28 Fixed wing transport aircraft cost reduction

    E-Print Network [OSTI]

    Xia, YuXin, M.B.A. Sloan School of Management

    2011-01-01T23:59:59.000Z

    The M28 is a Polish short-takeoff-and-landing (STOL) light cargo aircraft developed in 1984 and currently built by PZL Mielec, a subsidiary of United Technology Corporation (UTC). There has been renewed interest in the ...

  15. aircraft ab prib: Topics by E-print Network

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

    the magnetic field of its plasma cable. For creating this plasma cable the AB-Space Engine spends only some kg of hydrogen. Alexander Bolonkin 2008-03-02 9 Aircraft...

  16. Six Degree of Freedom Morphing Aircraft Dynamical Model with Aerodynamics

    E-Print Network [OSTI]

    Niksch, Adam

    2010-01-14T23:59:59.000Z

    Morphing aircraft are envisioned to have multirole capability where the ability to change shape allows for adaptation to a changing mission environment. In order to calculate the properties of many wing configurations efficiently and rapidly, a...

  17. Value-based multidisciplinary optimization for commercial aircraft program design

    E-Print Network [OSTI]

    Peoples, Ryan E

    2004-01-01T23:59:59.000Z

    Traditional commercial aircraft design attempts to achieve improved performance and reduced operating costs by minimizing maximum takeoff weight, but this approach (does not guarantee the financial viability of the program ...

  18. Rankline-Brayton engine powered solar thermal aircraft

    DOE Patents [OSTI]

    Bennett, Charles L. (Livermore, CA)

    2012-03-13T23:59:59.000Z

    A solar thermal powered aircraft powered by heat energy from the sun. A Rankine-Brayton hybrid cycle heat engine is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller or other mechanism for enabling sustained free flight. The Rankine-Brayton engine has a thermal battery, preferably containing a lithium-hydride and lithium mixture, operably connected to it so that heat is supplied from the thermal battery to a working fluid. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.

  19. Improving commonality implementation in the cockpits of commercial aircraft

    E-Print Network [OSTI]

    Bador, Damien (Damien Pierre Marcellin Dominique)

    2007-01-01T23:59:59.000Z

    Product development is a major source of competitive advantage in the commercial aircraft business. Judiciously implementing commonality across a range of products yields important benefits in this area. Thus, measuring ...

  20. Development of a high power density motor for aircraft propulsion

    E-Print Network [OSTI]

    Dibua, Imoukhuede Tim Odion

    2007-04-25T23:59:59.000Z

    are currently powered by heavy gas turbine engines that require fueling. The development of electric motors to replace gas turbines would be a big step towards accomplishing more efficient aircraft propulsion. The primary objective of this research extends...

  1. Rankine-Brayton engine powered solar thermal aircraft

    DOE Patents [OSTI]

    Bennett, Charles L. (Livermore, CA)

    2009-12-29T23:59:59.000Z

    A solar thermal powered aircraft powered by heat energy from the sun. A Rankine-Brayton hybrid cycle heat engine is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller or other mechanism for enabling sustained free flight. The Rankine-Brayton engine has a thermal battery, preferably containing a lithium-hydride and lithium mixture, operably connected to it so that heat is supplied from the thermal battery to a working fluid. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.

  2. Intelligent weather agent for aircraft severe weather avoidance

    E-Print Network [OSTI]

    Bokadia, Sangeeta

    2002-01-01T23:59:59.000Z

    Severe weather conditions pose a large threat to the safety of aircraft, since they are responsible for a large percentage of aviation related accidents. With the advent of the free flight environment, the exigency for an autonomous severe weather...

  3. CHARBEL FARHAT Vivian Church Hoff Professor of Aircraft Structures

    E-Print Network [OSTI]

    Farhat, Charbel

    of Aeronautics and Astronautics Director, Army High Performance Computing Research Center Professor, Department-Driven Systems, Finite Element Approximation, Fluid-Structure Interaction, High Performance Computing, Implosion of Aircraft Structures, Stanford University 2007- Director, Army High Performance Computing Research Center

  4. aircraft braking system: Topics by E-print Network

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

    is to develop a thermoelastic Haviland, David 174 The 2011 Cessna Aircraft CompanyRaytheon Missile Systems DesignBuildFly Competition Flyoff was held at TIMPA Field in...

  5. aircraft design: Topics by E-print Network

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

    samples per flight Collett Jr., Jeffrey L. 60 The 2011 Cessna Aircraft CompanyRaytheon Missile Systems DesignBuildFly Competition Flyoff was held at TIMPA Field in...

  6. aircraft system uas: Topics by E-print Network

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

    D. Kekez; D. Klabucar; M. D. Scadron 2000-03-23 149 The 2011 Cessna Aircraft CompanyRaytheon Missile Systems DesignBuildFly Competition Flyoff was held at TIMPA Field in...

  7. aircraft spacing system: Topics by E-print Network

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

    An example of a basis Katznelson, Yitzhak 146 The 2011 Cessna Aircraft CompanyRaytheon Missile Systems DesignBuildFly Competition Flyoff was held at TIMPA Field in...

  8. aircraft transportation system: Topics by E-print Network

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

    737-800 commercial transport aircraft) Boeing,2 Lockheed-Martin,3 Northrop-Grumman,4 Raytheon,5 and BAE Systems6 all include some version de Weck, Olivier L. 167 Transport...

  9. aircraft hydraulic systems: Topics by E-print Network

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

    RHHMS... Huff, William Edward 1988- 2012-12-05 135 The 2011 Cessna Aircraft CompanyRaytheon Missile Systems DesignBuildFly Competition Flyoff was held at TIMPA Field in...

  10. Electrical Generation for More-Electric Aircraft using Solid...

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

    DE-AC05-76RL01830 Electrical Generation for More-Electric Aircraft using Solid Oxide Fuel Cells GA Whyatt LA Chick April 2012 PNNL-XXXXX Electrical Generation for More- Electric...

  11. Remote sensing of terrestrial tropospheric aerosols from aircraft and satellites

    E-Print Network [OSTI]

    Remote sensing of terrestrial tropospheric aerosols from aircraft and satellites M I Mishchenko1 instruments suitable for aerosol remote sensing and give examples of aerosol retrievals obtained forcing directly by absorbing and reflecting sunlight, thereby cooling or heating the atmosphere

  12. aircraft interior noise: Topics by E-print Network

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

    9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 OPTIMIZATION OF OPERATIONAL AIRCRAFT PARAMETERS REDUCING NOISE EMISSION Mathematics Websites...

  13. Hybrid wing-body aircraft noise and performance assessment

    E-Print Network [OSTI]

    Weed, Philip Andrew

    2010-01-01T23:59:59.000Z

    Hybrid wing-body aircraft noise generation and boundary layer ingestion (BLI) performance trends with increased fan face Mach number inlet designs are investigated. The presented topics are in support of the NASA subsonic ...

  14. aircraft engine performance: Topics by E-print Network

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

    JET-A Fuel University of Kansas - KU ScholarWorks Summary: NOx, CO, CO2, and HC. The emission investigation demonstrates that the aircraft turbo diesel emission data (gkg fuel)...

  15. Property Rights, Progress, and the Aircraft Patent Agreement

    E-Print Network [OSTI]

    Bittlingmayer, George

    1988-04-01T23:59:59.000Z

    315 62 23 1969 338 55 19 1970 291 69 24 1971 336 61 29 1972 268 56 26 Total 1,548 303 121 SOURCE.—Manufacturers Aircraft Association, Documents on file at the Department of Justice, Licensed Airline Patents, Exhibit B; and U . S . Patent... and Trademark Office, Classification Definitions, Class 244—Aeronautics (February 1975), passim; Manufacturers Aircraft Association, documents on file at the Department of Justice, Licensed Airline Patents, Exhibit B; and U . S . Patent and Trademark Office...

  16. The continuous knapsack set

    E-Print Network [OSTI]

    2014-08-29T23:59:59.000Z

    that when n = 3, the non-zero coefficients of the continuous variables can take ... Vachani [6] studied the single arc design problem as a subproblem of the net-.

  17. Continuous sulfur removal process

    DOE Patents [OSTI]

    Jalan, V.; Ryu, J.

    1994-04-26T23:59:59.000Z

    A continuous process for the removal of hydrogen sulfide from a gas stream using a membrane comprising a metal oxide deposited on a porous support is disclosed. 4 figures.

  18. Nuclear testing continues

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

    week we noted that many of the Special Engineer Detachment stayed at the sites when the war was over and continued working, however, most of them who had been drafted out of...

  19. What is Continual Learning?

    Broader source: Energy.gov [DOE]

    Continual Learning is a change initiative which is used to help develop and grow a learning culture within DOE. Employee development in any organization and at any level is never ending.

  20. Continuous injection method controls downhole corrosion - 2

    SciTech Connect (OSTI)

    Bradburn, J.B.; Todd, R.B.

    1981-08-01T23:59:59.000Z

    In designing a continuous downhole corrosion inhibitor injection system, many interrelated factors must be considered: bottomhole pressure, inhibitor viscosity, injection rate, friction loss, hole geometry, cost, delivery time, annulus environment, elastomers, and corrosivity of well fluids. In view of the many variables associated with the design of a downhole injection system, the following design outline is presented. 8 refs.

  1. IMPROVED MICROWAVE REMOTE SENSING OF HURRICANE WIND SPEED AND RAIN RATES USING THE HURRICANE IMAGING RADIOMETER (HIRAD)

    E-Print Network [OSTI]

    Ruf, Christopher

    IMPROVED MICROWAVE REMOTE SENSING OF HURRICANE WIND SPEED AND RAIN RATES USING THE HURRICANE) that measures wind speed and rain rate along the ground track directly beneath the aircraft. This paper presents are presented, which illustrate wind speed and rain rate measurement spatial resolutions and swath coverage. 1

  2. Modeling of particulate matter creation and evolution in aircraft engines, plumes and particle sampling systems

    E-Print Network [OSTI]

    Dakhel, Pierre Max

    2005-01-01T23:59:59.000Z

    Environmental and health concerns have recently led to growing efforts to characterize the exhaust gas composition of aircraft engines. Besides major chemical species (N?, 0?, C0? and H?0), aircraft engines also emit other ...

  3. The impact of aircraft design reference mission on fuel efficiency in the air transportation system

    E-Print Network [OSTI]

    Yutko, Brian M. (Brian Matthew)

    2014-01-01T23:59:59.000Z

    Existing commercial aircraft are designed for high mission flexibility, which results in decreased fuel efficiency throughout the operational life of an aircraft. The objective of this research is to quantify the impact ...

  4. 16.885J / ESD.35J Aircraft Systems Engineering, Fall 2003

    E-Print Network [OSTI]

    Hansman, Robert John

    Subject addresses a holistic systems engineering approach for aircraft development. Focuses on the conceptual phase of product definition during which all aspects relevant to a new or derivative aircraft must be considered. ...

  5. Interactive dynamic aircraft scheduling and fleet routing with the out-of-kilter algorithm

    E-Print Network [OSTI]

    Van Cotthem, Jan

    1986-01-01T23:59:59.000Z

    A decision support system is introduced that automates dynamic aircraft scheduling and fleet routing. Interactive graphics-based schedule construction and modification tools automate the dynamic scheduling of aircraft of ...

  6. Decentralized aircraft landing scheduling at single runway non-controlled airports

    E-Print Network [OSTI]

    Ding, Yuanyuan

    2009-05-15T23:59:59.000Z

    that achieves decentralized aircraft landing scheduling with acceptable performance whereas a solution to the distributed coordination issues is presented. Finally real-time Monte Carlo flight simulations of multi-aircraft landing scenarios are conducted...

  7. The MQ-9 Reaper remotely piloted aircraft : humans and machines in action

    E-Print Network [OSTI]

    Cullen, Timothy M

    2011-01-01T23:59:59.000Z

    Remotely piloted aircraft and the people that control them are changing how the US military operates aircraft and those who fly, yet few know what "drone" operators actually do, why they do what they do, or how they shape ...

  8. he U.S. Coast Guard expects all of its Sikorsky Aircraft MH-60T

    E-Print Network [OSTI]

    Almor, Amit

    to have an Aircraft Diagnostic Vibration Management System (ADVMS) installed by 2018. It chose Honeywell also save Vol. 59, No. 3 1 The U.S.Coast Guard selected Honeywell late last year to supply the Aircraft

  9. Development of an aerodynamic/RCS framework for the preliminary design of a hypersonic aircraft

    E-Print Network [OSTI]

    Dicara, Daniel L

    2006-01-01T23:59:59.000Z

    The design of hypersonic airbreathing aircraft pushes the envelope of current state-ofthe-art aerospace propulsion and materials technology. Therefore, these aircraft are highly integrated to produce adequate thrust, reduce ...

  10. Rates and Repayment Services

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

    Tariff Rates FY 2015 Rates and Rate Schedules **Effective October 1, 2014** FY 2014 Rates and Rate Schedules FY 2013 Rates and Rate Schedules FY 2012 Rates and Rate Schedules FY...

  11. Stress Corrosion Crack Detection on HU-25 Guardian Aircraft

    SciTech Connect (OSTI)

    Blackmon, R.; Huffman, J.; Mello, C.W.; Moore, D.G.; Walkington, P.D.

    1999-02-17T23:59:59.000Z

    Several ultrasonic inspection methods were developed at the Federal Aviation Administration's Airworthiness Assurance NDI Validation Center (AANC) to easily and rapidly detect hidden stress corrosion cracks in all vertical windshield posts on the US Coast Guard (USCG) HU-25 Guardian aircraft. The inspection procedure locates cracks as small as 2.0 millimeters emanating from internal fastener holes and determines their length. A test procedure was developed and a baseline assessment of the USCG fleet was conducted. Inspection results on twenty-five aircraft revealed a good correlation with results made during subsequent structural disassembly and visual inspection.

  12. DOD-DOE Workshop Aircraft Petroleum Use Reduction: Can Fuel Cells be a Game Changer?

    E-Print Network [OSTI]

    Materials Provided · DOD-DOE MOU · NASA/UTC SOFC APU Feasibility Study for Long Range Commercial Aircraft 9

  13. Temperature of aircraft cargo flame exposure during accidents involving fuel spills

    SciTech Connect (OSTI)

    Mansfield, J.A.

    1993-01-01T23:59:59.000Z

    This report describes an evaluation of flame exposure temperatures of weapons contained in alert (parked) bombers due to accidents that involve aircraft fuel fires. The evaluation includes two types of accident, collisions into an alert aircraft by an aircraft that is on landing or take-off, and engine start accidents. Both the B-1B and B-52 alert aircraft are included in the evaluation.

  14. PROGRESS REPORT CONTINUATION REQUEST

    E-Print Network [OSTI]

    Jones, William D.

    PROGRESS REPORT and CONTINUATION REQUEST SUBMITTED TO THE U.S. DEPARTMENT OF ENERGY BY Prof (year 2): $135,000 Unexpended Balance from Previous Year: $0 #12;2 Abstract of FY 2005 Research City. Prof. Odile Eisenstein and Dr. Eric Clot at the University of Montpellier, France Overview

  15. Rates and Repayment Services

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

    Customer Letter - Preliminary Review of Drought Adder Component for 2011 Firm Power Rates 2015 Rates and Rate Schedule - Current * 2010 Rates and Rate Schedule 2009 Rates and...

  16. Rates and Repayment Services

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

    Rates and Repayment Services Consolidated Rate Schedules FY 2015 Consolidated Rate Schedules FY 2014 Rates BCP Annual Rate Process Central Arizona Project Transmission Rate Process...

  17. Method for Weight Control Engineering Management to Evaluate Single Engine Aircraft Weighing Activities

    E-Print Network [OSTI]

    Brown, Patrick M.

    2007-05-18T23:59:59.000Z

    Nose Gear Weight Plot................................................................................................. 51 Figure 31 Measurement of Distance ?A? Plot............................................................................... 51... measurement of everything from the thickness of a coat of paint to how much an aircraft weighs and where its CG is located. 1 The problem of determining an aircraft?s weight and CG is the focus of this investigation. It is a primary concern for Weight...

  18. Statistical prediction of aircraft trajectory: regression methods vs point-mass model

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    the altitude of climbing aircraft. In addition to the standard linear regression model, two common non-linear, BADA, linear regression, neural networks, Loess. INTRODUCTION Predicting aircraft trajectoriesStatistical prediction of aircraft trajectory: regression methods vs point-mass model M. Ghasemi

  19. Use of Eye Movements as Feedforward Training for a Synthetic Aircraft Inspection Task

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    - spection and maintenance are vital in assuring safety of an aircraft. The two main types of aircraft Sadasivan, Joel S. Greenstein, Anand K. Gramopadhye Industrial Engineering Clemson University, Clemson, SC, Clemson, SC 29634 duchowski@acm.org ABSTRACT Aircraft inspection is a vital element in assuring safety

  20. Remote Sensing of Commercial Aircraft Emissions Peter J. Popp & Donald H. Stedman

    E-Print Network [OSTI]

    Denver, University of

    Remote Sensing of Commercial Aircraft Emissions Peter J. Popp & Donald H. Stedman Department;Remote Sensing of Commercial Aircraft Emissions 2 Introduction On September 23 and 24, 1997, a study Authority, to remotely measure the emissions of commercial aircraft. During the two day sampling period

  1. Fault detection and isolation in aircraft gas turbine engines. Part 1: underlying concept

    E-Print Network [OSTI]

    Ray, Asok

    307 Fault detection and isolation in aircraft gas turbine engines. Part 1: underlying concept: aircraft propulsion, gas turbine engines, fault detection and isolation, statistical pattern recognition 1 INTRODUCTION Performance and reliability of aircraft gas turbine engines gradually deteriorate over the service

  2. Isogeometric Simulation of Turbine Blades for Aircraft Engines David Gromann1

    E-Print Network [OSTI]

    Jüttler, Bert

    Isogeometric Simulation of Turbine Blades for Aircraft Engines David Gro�mann1 , Bert Jüttler2, in the challenging field of aircraft engines. We study the deformation of turbine blades under the assumption, manufacturing and repairing turbine engines for aircrafts. A challenging task in this field is the efficient

  3. Aircraft Accident Prevention: Loss-of-Control Analysis Harry G. Kwatny

    E-Print Network [OSTI]

    Kwatny, Harry G.

    Aircraft Accident Prevention: Loss-of-Control Analysis Harry G. Kwatny , Jean-Etienne T. Dongmo NASA Langley Research Center, MS 161, Hampton, VA, 23681. The majority of fatal aircraft accidents that during the ten year period 1997-2006, 59% of fatal aircraft accidents were associated with Loss

  4. Continuous steel production and apparatus

    DOE Patents [OSTI]

    Peaslee, Kent D. (Rolla, MO); Peter, Jorg J. (McMinnville, OR); Robertson, David G. C. (Rolla, MO); Thomas, Brian G. (Champaign, IL); Zhang, Lifeng (Trondheim, NO)

    2009-11-17T23:59:59.000Z

    A process for continuous refining of steel via multiple distinct reaction vessels for melting, oxidation, reduction, and refining for delivery of steel continuously to, for example, a tundish of a continuous caster system, and associated apparatus.

  5. Transcontinental Rates

    E-Print Network [OSTI]

    Danskin, Floyd Brown

    1913-01-01T23:59:59.000Z

    the Pacif ic Mail was left to continue its subsidized co - etition for through traffic. 3 It was in the year 1883 also that the North rn Pao! fio was opened for traffic to the Pacifio Northwest,and in the following year by the comp~tion of the Oregon B... 184. The N. P. owns and operates a line of railway from Ash­ land, Wis. to Portland, Oregon and Wallula, Wash. a distanc e of 2 , 137 miles. Its principal eastern termini are st. Pau1, Minneapolis and Duluth in Minnesota, and its 'rincipal wes~ ern...

  6. Environmental assessment, aircraft chemical warfare survivability test program, Naval Air Warfare Center, Aircraft Division, Patuxent River, Maryland

    SciTech Connect (OSTI)

    NONE

    1992-02-01T23:59:59.000Z

    The proposed project, the Aircraft Chemical Warfare Survivability Test Program at Patuxent River Naval Air Station, involves the testing and development of aircraft systems and operating procedures for use in an environment contaminated with chemical/biological warfare agents. The tests will be performed in accordance with a directive from the chief of Naval Operations to obtain and maintain the capability to operate in a chemically-contaminated environment. These tests will be performed under outdoor, warm-weather conditions on a dredge disposal area and adjacent runways to simulate the conditions under which a real-life threat would be encountered.

  7. advanced technology aircraft: Topics by E-print Network

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

    technology aircraft First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 February 2000 Advanced Technology...

  8. aircraft impact dynamics: Topics by E-print Network

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

    impact dynamics First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Conceptual aircraft dynamics from...

  9. aircraft energy efficiency: Topics by E-print Network

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

    aircraft energy efficiency First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Design Drivers of...

  10. On Optimization of Sensor Selection for Aircraft Gas

    E-Print Network [OSTI]

    Simon, Dan

    1 On Optimization of Sensor Selection for Aircraft Gas Turbine Engines Ramgopal Mushini Dan Simon temperature 6. HPC exit temperature 7. Bypass duct pressure 8. HPC exit pressure 9. LPT (low pressure turbine. High pressure turbine airflow capacity 6. High pressure turbine efficiency 7. Low pressure turbine

  11. aircraft shield test reactor: Topics by E-print Network

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

    aircraft shield test reactor First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Experimental Tests of...

  12. aircraft materials: Topics by E-print Network

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

    aircraft materials First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Material Delivery System for...

  13. aircraft interior materials: Topics by E-print Network

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

    aircraft interior materials First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Standard Test Method to...

  14. Predicting the Operational Effectiveness of Aircraft Survivability Equipment Suite

    E-Print Network [OSTI]

    Noh, Sanguk

    , and experiment with their autonomous decision-making against threats in various electronic warfare settings. We: Autonomous Decision-Making, Electronic Warfare Settings, Aircraft Survivability Equipment Suite, Operational Effectiveness 1. Introduction In order to counter threats in electronic warfare environments, a command

  15. 50 years of transonic aircraft design Antony Jameson, Kui Ou

    E-Print Network [OSTI]

    Jameson, Antony

    optimization (MDO). They have also transformed aircraft operations through the adoption of digital fly been completely transformed by the introduction of sophisticated numerical algorithms and an astonishing increase in the available computational power, with the consequence that aerodynamic design is now

  16. An object-oriented, knowledge-based aircraft approach controller

    E-Print Network [OSTI]

    Lass, Steven Lee

    1995-01-01T23:59:59.000Z

    The research for the thesis was performed by Steven Lee Lass in pursuit of a Master of Science degree in Electrical Engineering. The objective of this research was to develop an approach system for an aircraft using fuzzy control. The approach...

  17. aircraft composite materials: Topics by E-print Network

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

    aircraft composite materials First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Material Delivery System...

  18. aircraft accident victims: Topics by E-print Network

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

    aircraft accident victims First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Cyclistes Victimes d'Accident...

  19. aircraft air pollution: Topics by E-print Network

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

    aircraft air pollution First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Environmental Pollution Air...

  20. Continuous Fiber Ceramic Composites

    SciTech Connect (OSTI)

    None

    2002-09-01T23:59:59.000Z

    Fiber-reinforced ceramic composites demonstrate the high-temperature stability of ceramics--with an increased fracture toughness resulting from the fiber reinforcement of the composite. The material optimization performed under the continuous fiber ceramic composites (CFCC) included a series of systematic optimizations. The overall goals were to define the processing window, to increase the robustinous of the process, to increase process yield while reducing costs, and to define the complexity of parts that could be fabricated.

  1. Decision Support Tool for Predicting Aircraft Arrival Rates, Ground Delay Programs, and Airport

    E-Print Network [OSTI]

    associated with construction, it is unlikely that any new airports will be built in the near future went on to predict that the these airports will be at 89% capacity by 2012 [2]. The congestion problem

  2. Pharmacokinetics and toxicology of continuously infused nitroimidazoles

    SciTech Connect (OSTI)

    Eifel, P.J.; Brown, J.M.

    1984-08-01T23:59:59.000Z

    The pharmacokinetics and toxicology of misonidazole (MISO) and SR-2508 given by continuous intraperitoneal infusion were studied in female C/sub 3/H mice. The survival (time to death) of animals receiving continuous infusions of SR-2508 and MISO was compared and related to plasma concentration, rate of infusion and total amount of drug delivered. Brain and plasma concentrations were determined by HPLC. For SR-2508, plasma concentration was directly proportional to the infusion rate. However, as the infusion rate of MISO was doubled, the plasma concentration of MISO increased approximately 6-fold, reflecting a substantial increase in the apparent half-life. The brain/plasma concentration ratio in animals infused for up to 6 days with SR-2508 remained constant, at approximately 0.09. At plasma concentrations of 0.08-1.5 mM, animals receiving SR-2508 survived approximately 3 times as long as animals exposed to a comparable plasma concentration of MISO. Even at the lowest infusion rates employed in this study, the survival of mice receiving SR-2508 was much shorter than would have been predicted if the toxicity of these two drugs were solely related to the integral brain exposure. The low brain/plasma concentration ratio of SR-2508 was maintained throughout long continuous exposures.

  3. Fault detection and isolation in aircraft gas turbine engines. Part 2: validation on a simulation test bed

    E-Print Network [OSTI]

    Ray, Asok

    319 Fault detection and isolation in aircraft gas turbine engines. Part 2: validation of fault detection and isolation (FDI) in aircraft gas turbine engines. The FDI algorithms are built upon,onasimulationtestbed.Thetestbedisbuiltuponanintegratedmodelofageneric two-spool turbofan aircraft gas turbine engine including the engine control system. Keywords: aircraft

  4. A comparison of frontal and continuous systems of grazing

    E-Print Network [OSTI]

    Achaval O'Farrell, Fabian de

    1991-01-01T23:59:59.000Z

    -preferred forage species (Piper, 1980). Gains in animal production from rotational grazing above those obtained from continuous grazing will only be achieved at high stocking rates (Mc Meekan, 1960). Grazing animals may be encouraged to remove stem tissue...

  5. Rates and Repayment Services

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

    Rates and Repayment Services Rates Loveland Area Projects Firm Power Rates Open Access Transmission Tariff Rates Chart of Loveland Area Projects Historical Transmission Rates...

  6. Personal continuous air monitor

    DOE Patents [OSTI]

    Morgan, Ronald G. (Los Alamos, NM); Salazar, Samuel A. (Albuquerque, NM)

    2000-01-01T23:59:59.000Z

    A personal continuous air monitor capable of giving immediate warning of the presence of radioactivity has a filter/detector head to be worn in the breathing zone of a user, containing a filter mounted adjacent to radiation detectors, and a preamplifier. The filter/detector head is connected to a belt pack to be worn at the waist or on the back of a user. The belt pack contains a signal processor, batteries, a multichannel analyzer, a logic circuit, and an alarm. An air pump also is provided in the belt pack for pulling air through the filter/detector head by way of an air tube.

  7. Optimal Control of a Continuous Distillation Process under Probabilistic Constraints

    E-Print Network [OSTI]

    Henrion, René

    Optimal Control of a Continuous Distillation Process under Probabilistic Constraints René Henrion1 Universität Berlin, Germany Abstract A continuous distillation process with random inflow rate is considered model including the dynamics of the distillation process and proba- bilistic constraints under different

  8. The slowdown continues

    SciTech Connect (OSTI)

    Not Available

    1988-08-01T23:59:59.000Z

    The author reviews the oil market in the Middle East. Some of the highlights are: Aramco activity in Saudi Arabi seems to be struck at a historically low level; Iran is maintaining production rates despite persistent Iraqi, U.S. attacks; Iraq plans ambitious 5-year drilling program, development of eight new fields; and Oman set reserves record with any finds, remains the area's biggest driller.

  9. Nonlinear continuous feedback controllers

    E-Print Network [OSTI]

    Sitharaman, Sai Ganesh

    2004-09-30T23:59:59.000Z

    ?s throughput by maintaining the outstanding packets along the path. In 1994, TCP Vegas was introduced by Brakmo et al. [47] as an improvement over TCP Reno. TCP Vegas anticipated the network losses better than Reno and improved the sender... utility (with appropriate functional properties) is two-fold in nature: to drive the system towards an equilibrium point and to establish the local stability of the chosen rate differential equation. At one side, we establish the necessary...

  10. Performance deterioration modeling in aircraft gas turbine engines

    SciTech Connect (OSTI)

    Zaita, A.V. [Advanced Engineering and Research Associates, Inc., Arlington, VA (United States). Technology Development Div.; Buley, G. [Naval Surface Warfare Center, West Bethesda, MD (United States). Carderock Div.; Karlsons, G. [Naval Air Warfare Center, Patuxent River, MD (United States)

    1998-04-01T23:59:59.000Z

    Steady-state performance models can be used to evaluate a new engine`s baseline performance. As a gas turbine accumulates operating time in the field, its performance deteriorates due to fouling, erosion, and wear. This paper presents the development of a model for predicting the performance deterioration of aircraft gas turbines. The model accounts for rotating component deterioration based on the aircraft mission profiles and environmental conditions and the engine`s physical and design characteristics. The methodology uses data correlations combined with a stage stacking technique for the compressor and a tip rub model, along with data correlations for the turbine to determine the amount of performance deterioration. The performance deterioration model interfaces with the manufacturer`s baseline engine simulation model in order to create a deteriorated performance model for that engine.

  11. Low-voltage radiography on aircraft composite doublers

    SciTech Connect (OSTI)

    Moore, D.G.; Murray, J.D.

    1997-11-01T23:59:59.000Z

    Composite doublers are gaining popularity for their ability to repair and reinforce commercial aircraft structures and it is anticipated that the potential cost savings may spur wider use of this technology. But before composite doublers can be accepted by the civil aviation industry, inspection techniques must be developed to verify the integrity of the doubler and the parent material under the doubler. The Federal Aviation Administration Airworthiness Assurance NDI Validation Center (AANC) is currently developing test methods to inspect aircraft structures under composite doublers using low kilovoltage radiography. This paper documents the radiographic techniques developed by the AANC which have been found to give the best contrast of the radiographic image with reduced image distortion.

  12. Activities at the FAA aging aircraft NDI validation center

    SciTech Connect (OSTI)

    Shurtleff, W.

    1994-08-01T23:59:59.000Z

    Aging Aircraft NDI Validation Center (AANC) was established by the FAA Technical Center (FAATC) at Sandia National Laboratories in August of 1991. The Validation Center supports the inspection portion of the FAA`s National Aging Aircraft Program which was mandated by Congress in the 1988 Aviation Safety Act. The ultimate customers of the AANC include the FAA, airframe and engine manufacturers, airlines, and third party maintenance facilities. One goal of the AANC is to provide independent validation of technologies intended to enhance the structural inspection of aging commuter and transport aircraft. Another goal is to assist in transferring emerging inspection technology from other parts of the FAA`s program to the aircraft industry. The deliverables from both these activities are an assessment of the reliability and cost benefits of an inspection technology as applied to a particular inspection or class of inspections. The validation process consists of a quantitative and systematic assessment of the reliability and cost/benefits on a Nondestructive Inspection (NDI) process. A NDI process is defined as the NDI systems and procedures used for inspections. This includes the NDI operator, inspection environment, and the object being inspected. The phases of the validation process are: 1. Conceptual, 2. Preliminary design, 3. Final design, and 4. Field implementation. The AAANC usually gets involved in the validation process during Phases 2 and 3. The Center supports field trials with a full array of test specimens and established procedures for conducting the trials. Phase 4 reliability includes field trials using independent inspectors either at the Center`s hangar or at outside maintenance facilities. Three activities are summarized below where inspection technology has been validated in the field. These are: (1) eddy current inspection reliability experiment; (2) magneto optic imager validation; and (3) inspection tool improvement.

  13. Low gloss UV-cured coatings for aircraft

    DOE Patents [OSTI]

    Bowman, Mark; Muschar, Harry

    2014-12-09T23:59:59.000Z

    A method of applying a low gloss coating to a substrate such as the exterior surface of an aircraft is disclosed. The coating composition comprising a polyene, a polythiol, a flatting agent and a coloring pigment is applied to the substrate and given a first dosage of UV radiation followed by a second dosage in which the second dosage is greater than the first resulting in an ultralow gloss coating.

  14. Nondestructive inspection of bonded composite doublers for aircraft

    SciTech Connect (OSTI)

    Roach, D.; Moore, D.; Walkington, P.

    1996-12-31T23:59:59.000Z

    One major thrust in FAA`s National Aging Aircraft Research Program is to foster new technologies in civil aircraft maintenance. Recent DOD and other government developments in using bonded composite doublers on metal structures support the need for validation of such doubler applications on US certificated airplanes. In this study, a specific composite application was chosen on an L-1011 aircraft. Primary inspection requirements for these doublers include identifying disbonds between composite laminate and aluminum parent material, and delaminations in the composite laminate. Surveillance of cracks or corrosion in the parent aluminum material beneath the double is also a concern. No single NDI method can inspect for every flaw type, therefore we need to know NDI capabilities and limitations. This paper reports on a series of NDI tests conducted on laboratory test structures and on a fuselage section from a retired L-1011. Application of ultrasonics, x-ray, and eddy current to composite doublers and results from test specimens loaded to provide a changing flaw profile, are presented in this paper. Development of appropriate inspection calibration standards are also discussed.

  15. Continuous production of conducting polymer

    E-Print Network [OSTI]

    Gaige, Terry A. (Terry Alden), 1981-

    2004-01-01T23:59:59.000Z

    A device to continuously produce polypyrrole was designed, manufactured, and tested. Polypyrrole is a conducting polymer which has potential artificial muscle applications. The objective of continuous production was to ...

  16. A new rate-dependent unidirectional composite model Application to panels subjected to underwater blast

    E-Print Network [OSTI]

    Espinosa, Horacio D.

    Article history: Received 23 August 2012 Received in revised form 18 February 2013 Accepted 22 February-rate sensitivity. These constitutive descrip- tions were used to predict deformation histories, fiber/matrix damage-reinforced composite materials have been widely used in the design of aircrafts, marine hulls, and automobiles under

  17. Experimental flight test vibration measurements and nondestructive inspection on a USCG HC-130H aircraft

    SciTech Connect (OSTI)

    Moore, D.G.; Jones, C.R. [Sandia National Labs., Albuquerque, NM (United States). FAA Airworthiness Assurance NDI Validation Center; Mihelic, J.E.; Barnes, J.D. [Coast Guard Aircraft Repair and Supply Center, Elizabeth City, NC (United States)

    1998-08-01T23:59:59.000Z

    This paper presents results of experimental flight test vibration measurements and structural inspections performed by the Federal Aviation Administration`s Airworthiness Assurance NDI Validation Center (AANC) at Sandia National Laboratories and the US Coast Guard Aircraft Repair and Supply Center (ARSC). Structural and aerodynamic changes induced by mounting a Forward Looking Infrared (FLIR) system on a USCG HC-130H aircraft are described. The FLIR adversely affected the air flow characteristics and structural vibration on the external skin of the aircraft`s right main wheel well fairing. Upon initial discovery of skin cracking and visual observation of skin vibration in flight by the FLIR, a baseline flight without the FLIR was conducted and compared to other measurements with the FLIR installed. Nondestructive inspection procedures were developed to detect cracks in the skin and supporting structural elements and document the initial structural condition of the aircraft. Inspection results and flight test vibration data revealed that the FLIR created higher than expected flight loading and was the possible source of the skin cracking. The Coast Guard performed significant structural repair and enhancement on this aircraft, and additional in-flight vibration measurements were collected on the strengthened area both with and without the FLIR installed. After three months of further operational FLIR usage, the new aircraft skin with the enhanced structural modification was reinspected and found to be free of flaws. Additional US Coast Guard HC-130H aircraft are now being similarly modified to accommodate this FLIR system. Measurements of in-flight vibration levels with and without the FLIR installed, and both before and after the structural enhancement and repair were conducted on the skin and supporting structure in the aircraft`s right main wheel fairing. Inspection results and techniques developed to verify the aircraft`s structural integrity are discussed.

  18. RADIATION SCIENCE AND TECHNOLOGY | ROTARY WING AIRCRAfT | SANITARY -ENVIRONMENTAL

    E-Print Network [OSTI]

    RADIATION SCIENCE AND TECHNOLOGY | ROTARY WING AIRCRAfT | SANITARY - ENVIRONMENTAL ENGINEERING Computational Genomics & Proteomics 2008 Wearable Intelligent Devices for Human Health and Protection 2009

  19. E-Print Network 3.0 - aircraft piston engine Sample Search Results

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

    of Melbourne Collection: Engineering 56 TUNNEL-IN-THE-SKY COCKPIT DISPLAY FOR COMPLEX REMOTE SENSING FLIGHT TRAJECTORIES* Summary: aircraft was also changed to a twin...

  20. E-Print Network 3.0 - aircraft exhaust gases Sample Search Results

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

    of operations in a highly flexible and inexpensive mode... meteorological observations in remote and otherwise inaccessible regions. A proto- type aircraft was first flown......

  1. E-Print Network 3.0 - aircraft floor paneling Sample Search Results

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

    Collection: Materials Science 13 NIST NCSTAR 1-5A, WTC Investigation 297 FIRE BEHAVIOR IN WORLD TRADE CENTER 2 Summary: of the aircraft's starboard wing. Other floors...

  2. Applications of a fast, continuous wavelet transform

    SciTech Connect (OSTI)

    Dress, W.B.

    1997-02-01T23:59:59.000Z

    A fast, continuous, wavelet transform, based on Shannon`s sampling theorem in frequency space, has been developed for use with continuous mother wavelets and sampled data sets. The method differs from the usual discrete-wavelet approach and the continuous-wavelet transform in that, here, the wavelet is sampled in the frequency domain. Since Shannon`s sampling theorem lets us view the Fourier transform of the data set as a continuous function in frequency space, the continuous nature of the functions is kept up to the point of sampling the scale-translation lattice, so the scale-translation grid used to represent the wavelet transform is independent of the time- domain sampling of the signal under analysis. Computational cost and nonorthogonality aside, the inherent flexibility and shift invariance of the frequency-space wavelets has advantages. The method has been applied to forensic audio reconstruction speaker recognition/identification, and the detection of micromotions of heavy vehicles associated with ballistocardiac impulses originating from occupants` heart beats. Audio reconstruction is aided by selection of desired regions in the 2-D representation of the magnitude of the transformed signal. The inverse transform is applied to ridges and selected regions to reconstruct areas of interest, unencumbered by noise interference lying outside these regions. To separate micromotions imparted to a mass-spring system (e.g., a vehicle) by an occupants beating heart from gross mechanical motions due to wind and traffic vibrations, a continuous frequency-space wavelet, modeled on the frequency content of a canonical ballistocardiogram, was used to analyze time series taken from geophone measurements of vehicle micromotions. By using a family of mother wavelets, such as a set of Gaussian derivatives of various orders, features such as the glottal closing rate and word and phrase segmentation may be extracted from voice data.

  3. Small Unmanned Aircraft Systems Technology and Applications in Agriculture

    E-Print Network [OSTI]

    Burchfield, David

    2014-11-19T23:59:59.000Z

    : Dr. Kevin Price Thesis: Mapping Eastern Redcedar (Juniperus virginiana L.) and Quantifying its Biomass in Riley County, Kansas Students and faculty at KSU enjoyed conducting research with sUAS, commonly referred to as Unmanned Aircraft Vehicles (UAVs.... Kevin Price demonstrating autonomous flight to the news media in July of 2013. • More $13.6 billion in the first three years • $82.1 billion between 2015 and 2025 • More than 34,000 manufacturing jobs • More than 70,000 new jobs in the first three...

  4. Aircraft Integration and Flight Testing of 4STAR

    SciTech Connect (OSTI)

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

    2012-10-12T23:59:59.000Z

    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.

  5. Electrical Engineer- OPEN CONTINUOUS ANNOUNCEMENT

    Broader source: Energy.gov [DOE]

    This recruitment is an OPEN CONTINUOUS ANNOUNCEMENT (OCA) being utilized to fill current and future Electrical Engineer vacancies within BPA's Transmission Field Services organization. Positions...

  6. Electronics Engineer- OPEN CONTINUOUS ANNOUNCEMENT

    Broader source: Energy.gov [DOE]

    This recruitment is an OPEN CONTINUOUS ANNOUNCEMENT (OCA) being utilized to fill current and future Electrical Engineer vacancies within BPA's Transmission Field Services organization. Positions...

  7. Continuous Profiling of Magnetotelluric Fields

    E-Print Network [OSTI]

    Verdin, C.T.

    2009-01-01T23:59:59.000Z

    those employed in seismic data interpretation under the nameseismic nature, these techniques power implicit in the at least two decades of continued field and interpretation

  8. Microscale controlled continuous cell culture

    E-Print Network [OSTI]

    Lee, Kevin Shao-Kwan

    2011-01-01T23:59:59.000Z

    Measurements of metabolic and cellular activity through substrate and product interactions are highly dependent on environmental conditions and cellular metabolic state. For such experiments to be feasible, continuous ...

  9. Continuous Forcing Data, Darwin, Australia

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

    Jakob, Christian

    Long term, large scale continuous forcing data set for three complete wet seasons (2004-2005, 2005-2006 and 2006-2007) in Darwin, Australia.

  10. Preliminary assessment of the impact of commercial aircraft on local air quality in the U.S.

    E-Print Network [OSTI]

    Ratliff, Gayle L. (Gayle Lois)

    2007-01-01T23:59:59.000Z

    This thesis examines the impact of aircraft emissions on local air quality by performing two analyses: an assessment of U.S. commercial aircraft contribution to county budgets of primary pollutants in nonattainment areas, ...

  11. APPROACH TO HEALTH MONITORING OFAN AIRCRAFT STRUCTURE WITH RESISTIVE LADDER SENSORS DURING

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    APPROACH TO HEALTH MONITORING OFAN AIRCRAFT STRUCTURE WITH RESISTIVE LADDER SENSORS DURING FULL ladder sensors for health monitoring of an aircraft structure. Cracks forming can affect significantly and its size determination is one of the basic aims for Structural Health Monitoring (SHM) system

  12. INFORMATION: Audit Report on The Office of Secure Transportation DC-9 Aircraft Refurbishment

    SciTech Connect (OSTI)

    None

    2009-05-01T23:59:59.000Z

    The National Nuclear Security Administration's (NNSA) Office of Secure Transportation (OST) maintains a fleet of seven aircraft to transport sensitive items, equipment and security personnel. Based on increasing requirements for transporting components and security personnel, OST decided to add a heavy transport aircraft to meet the Department's weapons surety and emergency response missions. In 2004, as a replacement following the sale of a portion of its fleet, OST acquired a DC-9 cargo aircraft that had been excessed by the U.S. military. Prior to integrating the DC-9 into its fleet, NNSA ordered a refurbishment of the aircraft. This refurbishment project was to permit the aircraft to be certified to civil air standards so that it could transport passengers for site visits, training and other travel. The NNSA Service Center (Service Center) awarded a contract for the refurbishment of the aircraft in December 2004. In recent years, the Office of Inspector General has addressed a number of issues relating to the Department's aircraft management activities and services. As part of our ongoing review process and because of the national security importance of its fleet of aircraft, we conducted this review to determine whether OST had an effective and efficient aviation management program.

  13. A Contract-Based Methodology for Aircraft Electric Power System Design

    E-Print Network [OSTI]

    Xu, Huan

    1 A Contract-Based Methodology for Aircraft Electric Power System Design Pierluigi Nuzzo, Huan Xu´e, Sanjit A. Seshia Abstract--In an aircraft electric power system, one or more supervisory control units of our approach on a proof-of-concept electric power system design. I. INTRODUCTION The advent of high

  14. Dynamic State Estimation in Distributed Aircraft Electric Control Systems via Adaptive Submodularity

    E-Print Network [OSTI]

    Murray, Richard M.

    for the international space station, [10] for an aircraft electric system, and [7] for a marine vehicle power system industry signifies progress in the direction of more energy efficient vehicles. Electric systems are replac on electric power, the flight-criticality of an aircraft becomes more dependent on the electric power system

  15. ME 4171 Environmentally Conscious Design & Manufacturing (Bras) Assignment Aircraft Fuel Tank Production Pollution Prevention

    E-Print Network [OSTI]

    mainly in the aircraft industry. The main reasons for using fabric in the construction of these tanks Production Pollution Prevention A local company manufactures a wide variety of fabric fuel tanks for use are durability and shape requirements imposed by aircraft design. The construction process involves first

  16. Impact of Liquefied Natural Gas usage and payload size on Hybrid Wing Body aircraft fuel efficiency

    E-Print Network [OSTI]

    Mody, Pritesh (Pritesh Chetan)

    2010-01-01T23:59:59.000Z

    This work assessed Hybrid Wing Body (HWB) aircraft in the context of Liquefied Natural Gas (LNG) fuel usage and payload/range scalability at three scales: H1 (B737), H2 (B787) and H3 (B777). The aircraft were optimized for ...

  17. A Case Study on Reactive Protocols for Aircraft Electric Power Distribution

    E-Print Network [OSTI]

    Xu, Huan

    A Case Study on Reactive Protocols for Aircraft Electric Power Distribution Huan Xu1, Ufuk Topcu2 electric power system that meets system requirements and reacts dynamically to changes in internal system to more-electric aircraft architectures possible. Conventional architectures utilize a combination

  18. Reactive Protocols for Aircraft Electric Power Distribution Huan Xu, Ufuk Topcu, and Richard M. Murray

    E-Print Network [OSTI]

    Murray, Richard M.

    Reactive Protocols for Aircraft Electric Power Distribution Huan Xu, Ufuk Topcu, and Richard M. Murray Abstract-- The increasing complexity of electric power sys- tems leads to integration and verification challenges. We consider the problem of designing a control protocol for the aircraft electric

  19. COLLABORATIVE VIRTUAL ENVIRONMENT TO SIMULATE ON-THE-JOB AIRCRAFT INSPECTION TRAINING AIDED BY HAND

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    is the backbone of the aircraft inspection process, a vital element in assuring safety and reliability of an air Engineering J. Masters Department of Psychology A. T. Duchowski Department of Computer Science Clemson was effective in improving inspection performance. INTRODUCTION Sound aircraft inspection and maintenance

  20. H Filtering with Inequality Constraints for Aircraft Turbofan Engine Health Estimation

    E-Print Network [OSTI]

    Simon, Dan

    shows how inequality-constrained H filtering can be applied to aircraft engine health estimation the inequality-constrained H filter can be reduced to a standard H filter combined with a quadratic programming health parameter estimation. This paper applies inequality-constrained H filtering to estimate aircraft

  1. Hazards of falling debris to people, aircraft, and watercraft

    SciTech Connect (OSTI)

    Cole, J.K.; Young, L.W.; Jordan-Culler, T.

    1997-04-01T23:59:59.000Z

    This report is a collection of studies performed at Sandia National Laboratories in support of Phase One (inert debris) for the Risk and Lethality Commonality Team. This team was created by the Range Safety Group of the Range Commander`s Council to evaluate the safety issues for debris generated during flight tests and to develop debris safety criteria that can be adopted by the national ranges. Physiological data on the effects of debris impacts on people are presented. Log-normal curves are developed to relate the impact kinetic energy of fragments to the probability of fatality for people exposed in standing, sitting, or prone positions. Debris hazards to aircraft resulting from engine ingestion or penetration of a structure or windshield are discussed. The smallest mass fragments of aluminum, steel, and tungsten that may be hazardous to current aircraft are defined. Fragment penetration of the deck of a small ship or a pleasure craft is also considered. The smallest mass fragments of aluminum, steel, or tungsten that can penetrate decks are calculated.

  2. A study of the dynamics of an aircraft subjected to the airloads created by a pair of trailing vortices of a large aircraft

    E-Print Network [OSTI]

    Ramirez, Amado

    1971-01-01T23:59:59.000Z

    a trailing vortex system of a larger aircraft. This analysis, based on a lifting surface theory developed by Jones and Rao, neglects wing-body-tail interaction effects. The changes in the aerodynamic loads and moments on the De Havilland Beaver..., to the trailing vortex system. The response of the Beaver aircraft in longitudinal flight is predicted as it penetrates a trailing vortex system of known strength. The trailing vortex strength is chosen in such a way that the linear- ization assumption...

  3. Continuous cryopump with a device for regenerating the cryosurface

    DOE Patents [OSTI]

    Foster, C.A.

    1988-02-16T23:59:59.000Z

    A high throughput continuous cryopump is provided. The cryopump incorporates an improved method for regenerating the cryopumping surface while the pump is in continuous operation. The regeneration of the cryopumping surface does not thermally cycle the pump, and to this end a small chamber connected to a secondary pumping source serves to contain and exhaust frost removed from the cryopumping surface during such regeneration. The frost is exhausted at a rate substantially independent of the speed of the cryopump which enhances the capability of the pump to achieve a high compression ratio and allow the pump to operate continuously while the cryopumping surface is being regenerated. 8 figs.

  4. Continuous cryopump with a device for regenerating the cryosurface

    DOE Patents [OSTI]

    Foster, Christopher A. (Rte. 5, Box 101-B, Clinton, TN 37716)

    1988-01-01T23:59:59.000Z

    A high throughput continuous cryopump is provided. The cryopump (10) incorporates an improved method for regenerating the cryopumping surface (22) while the pump is in continuous operation. The regeneration of the cryopumping surface (22) does not thermally cycle the pump, and to this end a small chamber (91) connected to a secondary pumping source (60) serves to contain and exhaust frost removed from the cryopumping surface (22) during such regeneration. The frost is exhausted at a rate substantially independent of the speed of the cryopump which enhances the capability of the pump to achieve a high compression ratio and allow the pump to operate continuously while the cryopumping surface is being regenerated.

  5. Chlorite Dissolution Rates

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

    Carroll, Susan

    Spreadsheets provides measured chlorite rate data from 100 to 300C at elevated CO2. Spreadsheet includes derived rate equation.

  6. Chlorite Dissolution Rates

    SciTech Connect (OSTI)

    Carroll, Susan

    2013-07-01T23:59:59.000Z

    Spreadsheets provides measured chlorite rate data from 100 to 300C at elevated CO2. Spreadsheet includes derived rate equation.

  7. The Interest Rate Conundrum

    E-Print Network [OSTI]

    Craine, Roger; Martin, Vance L.

    2009-01-01T23:59:59.000Z

    Flows and US Interest Rates,” NBER Working Paper No 12560. [Working Paper # 2008 -03 The Interest Rate Conundrum Roger

  8. AirTAP BriefingsA publication of the AirTAP program of the Center for Transportation Studies at the University of Minnesota Setting rates and charges can be one of

    E-Print Network [OSTI]

    Minnesota, University of

    at the University of Minnesota Setting rates and charges can be one of the most challenging tasks an airport services, and rates and charges can fluctu- ate depending on the types of services that are offered. Finally, if rates and charges are set too high at an airport, pilots can easily relocate their aircraft

  9. Anyonic statistics with continuous variables

    E-Print Network [OSTI]

    Jing Zhang; Changde Xie; Kunchi Peng; Peter van Loock

    2008-10-30T23:59:59.000Z

    We describe a continuous-variable scheme for simulating the Kitaev lattice model and for detecting statistics of abelian anyons. The corresponding quantum optical implementation is solely based upon Gaussian resource states and Gaussian operations, hence allowing for a highly efficient creation, manipulation, and detection of anyons. This approach extends our understanding of the control and application of anyons and it leads to the possibility for experimental proof-of-principle demonstrations of anyonic statistics using continuous-variable systems.

  10. LANL continuity of operations plan

    SciTech Connect (OSTI)

    Senutovitch, Diane M [Los Alamos National Laboratory

    2010-12-22T23:59:59.000Z

    The Los Alamos National Laboratory (LANL) is a premier national security research institution, delivering scientific and engineering solutions for the nation's most crucial and complex problems. Our primary responsibility is to ensure the safety, security, and reliability of the nation's nuclear stockpile. LANL emphasizes worker safety, effective operational safeguards and security, and environmental stewardship, outstanding science remains the foundation of work at the Laboratory. In addition to supporting the Laboratory's core national security mission, our work advances bioscience, chemistry, computer science, earth and environmental sciences, materials science, and physics disciplines. To accomplish LANL's mission, we must ensure that the Laboratory EFs continue to be performed during a continuity event, including localized acts of nature, accidents, technological or attack-related emergencies, and pandemic or epidemic events. The LANL Continuity of Operations (COOP) Plan documents the overall LANL COOP Program and provides the operational framework to implement continuity policies, requirements, and responsibilities at LANL, as required by DOE 0 150.1, Continuity Programs, May 2008. LANL must maintain its ability to perform the nation's PMEFs, which are: (1) maintain the safety and security of nuclear materials in the DOE Complex at fixed sites and in transit; (2) respond to a nuclear incident, both domestically and internationally, caused by terrorist activity, natural disaster, or accident, including mobilizing the resources to support these efforts; and (3) support the nation's energy infrastructure. This plan supports Continuity of Operations for Los Alamos National Laboratory (LANL). This plan issues LANL policy as directed by the DOE 0 150.1, Continuity Programs, and provides direction for the orderly continuation of LANL EFs for 30 days of closure or 60 days for a pandemic/epidemic event. Initiation of COOP operations may be required to support an allhazards event, including a national security emergency, major fire, catastrophic natural disaster, man-made disaster, terrorism event, or technological disaster by rendering LANL buildings, infrastructure, or Technical Areas unsafe, temporarily unusable, or inaccessible.

  11. Bioremediation of aircraft deicing fluids (glycol) at airports. Final report

    SciTech Connect (OSTI)

    Gallagher, D.W.

    1998-09-01T23:59:59.000Z

    This report describes the work done to determine the effectiveness of various aerobic bioremediation techniques for reducing the biochemical oxygen demand (BOD) of aircraft deicing fluid runoff. Primary emphasis has been placed on laboratory and field demonstrations of bioremediation systems using various combinations of inocula (bacteria), nutrient mixes, enzyme mixes, and ultrasonic stimulation. Laboratory experiments with a variety of inocula and nutrients together with enzymes and ultrasound are demonstrated showing the importance of the appropriate bacteria and nutrient mix in bioaugmentation. The appropriate mix was shown to significantly influence biodegradation. Deicing solutions were routinely reduced to acceptable BOD levels for effluent discharge in 3 days or less. In the field experiment, a special dual-tank bioreactor system was developed to demonstrate a pilot small-scale system. Experimental operation of this system confirmed that a 3-day or less remediation cycle was possible during the winter season.

  12. Development and validation of bonded composite doubler repairs for commercial aircraft.

    SciTech Connect (OSTI)

    Roach, Dennis Patrick; Rackow, Kirk A.

    2007-07-01T23:59:59.000Z

    A typical aircraft can experience over 2,000 fatigue cycles (cabin pressurizations) and even greater flight hours in a single year. An unavoidable by-product of aircraft use is that crack, impact, and corrosion flaws develop throughout the aircraft's skin and substructure elements. Economic barriers to the purchase of new aircraft have placed even greater demands on efficient and safe repair methods. The use of bonded composite doublers offers the airframe manufacturers and aircraft maintenance facilities a cost effective method to safely extend the lives of their aircraft. Instead of riveting multiple steel or aluminum plates to facilitate an aircraft repair, it is now possible to bond a single Boron-Epoxy composite doubler to the damaged structure. The FAA's Airworthiness Assurance Center at Sandia National Labs (AANC), Boeing, and Federal Express completed a pilot program to validate and introduce composite doubler repair technology to the U.S. commercial aircraft industry. This project focused on repair of DC-10 fuselage structure and its primary goal was to demonstrate routine use of this repair technology using niche applications that streamline the design-to-installation process. As composite doubler repairs gradually appear in the commercial aircraft arena, successful flight operation data is being accumulated. These commercial aircraft repairs are not only demonstrating the engineering and economic advantages of composite doubler technology but they are also establishing the ability of commercial maintenance depots to safely adopt this repair technique. This report presents the array of engineering activities that were completed in order to make this technology available for widespread commercial aircraft use. Focused laboratory testing was conducted to compliment the field data and to address specific issues regarding damage tolerance and flaw growth in composite doubler repairs. Fatigue and strength tests were performed on a simulated wing repair using a substandard design and a flawed installation. In addition, the new Sol-Gel surface preparation technique was evaluated. Fatigue coupon tests produced Sol-Gel results that could be compared with a large performance database from conventional, riveted repairs. It was demonstrated that not only can composite doublers perform well in severe off-design conditions (low doubler stiffness and presence of defects in doubler installation) but that the Sol-Gel surface preparation technique is easier and quicker to carry out while still producing optimum bonding properties. Nondestructive inspection (NDI) methods were developed so that the potential for disbond and delamination growth could be monitored and crack growth mitigation could be quantified. The NDI methods were validated using full-scale test articles and the FedEx aircraft installations. It was demonstrated that specialized NDI techniques can detect flaws in composite doubler installations before they reach critical size. Probability of Detection studies were integrated into the FedEx training in order to quantify the ability of aircraft maintenance depots to properly monitor these repairs. In addition, Boeing Structural Repair and Nondestructive Testing Manuals were modified to include composite doubler repair and inspection procedures. This report presents the results from the FedEx Pilot Program that involved installation and surveillance of numerous repairs on operating aircraft. Results from critical NDI evaluations are reported in light of damage tolerance assessments for bonded composite doublers. This work has produced significant interest from airlines and aircraft manufacturers. The successful Pilot Program produced flight performance history to establish the durability of bonded composite patches as a permanent repair on commercial aircraft structures. This report discusses both the laboratory data and Pilot Program results from repair installations on operating aircraft to introduce composite doubler repairs into mainstream commercial aircraft use.

  13. A Comprehensive Program for Measurement of Military Aircraft Emissions

    SciTech Connect (OSTI)

    Cheng, Mengdawn [ORNL

    2009-11-01T23:59:59.000Z

    Emissions of gases and particulate matter by military aircraft were characterized inplume by 'extractive' and 'optical remote-sensing (ORS)' technologies. Non-volatile particle size distribution, number and mass concentrations were measured with good precision and reproducibly. Time-integrated particulate filter samples were collected and analyzed for smoke number, elemental composition, carbon contents, and sulfate. Observed at EEP the geometric mean diameter (as measured by the mobility diameter) generally increased as the engine power setting increased, which is consistent with downstream observations. The modal diameters at the downstream locations are larger than that at EEP at the same engine power level. The results indicate that engine particles were processed by condensation, for example, leading to particle growth in-plume. Elemental analysis indicated little metals were present in the exhaust, while most of the exhaust materials in the particulate phase were carbon and sulfate (in the JP-8 fuel). CO, CO{sub 2}, NO, NO{sub 2}, SO{sub 2}, HCHO, ethylene, acetylene, propylene, and alkanes were measured. The last five species were most noticeable under engine idle condition. The levels of hydrocarbons emitted at high engine power level were generally below the detection limits. ORS techniques yielded real-time gaseous measurement, but the same techniques could not be extended directly to ultrafine particles found in all engine exhausts. The results validated sampling methodology and measurement techniques used for non-volatile particulate aircraft emissions, which also highlighted the needs for further research on sampling and measurement for volatile particulate matter and semi-volatile species in the engine exhaust especially at the low engine power setting.

  14. Analog and digital dynamic simulations of a rigid body aircraft in straight and level flight

    E-Print Network [OSTI]

    Stroman, Morris Michael

    1973-01-01T23:59:59.000Z

    . , Texas A&M University Directed by: Dr. Balusu M. Rao A study of the dynamic response characteristics of an aircraft at low approach speeds was conducted using both a digital and an analog computer to simulate a DeHavilland "Beaver" DHC-2 in flight... to produce more sideslip and yawing motions than the rudder with analytical solutions. The problem areas of the STOL aircraft at low approach speeds as a result of a study of the DeHavilland "Beaver" were in lateral stability. The aircraft's response...

  15. Aircraft control using nonlinear dynamic inversion in conjunction with adaptive robust control

    E-Print Network [OSTI]

    Fisher, James Robert

    2005-02-17T23:59:59.000Z

    on the scheduling parameters [1, 2]. Dynamic Inversion may also be used to schedule control actions. The dynamics of an aircraft can be represented by the following dynamic differential equation: ? = f (x;t;G)+g(x;t;G)u x 2 Rn?1; u 2 Rp?1; (p > n) (II.1) The vector... x represents aircraft states and u represents a vector of control inputs. Only the case where p > n will be considered, although many aircraft have p = n or even p < n. The vector G consists of measurements including flight condition and states which...

  16. Proceedings of the International Workshop on inspection and evaluation of aging aircraft

    SciTech Connect (OSTI)

    Not Available

    1993-01-01T23:59:59.000Z

    Economics is the key issue in a discussion on the inspection of aging aircraft. The airline industry has taken heavy losses resulting in layoffs and bankruptcies in recent years. Improving air service to customers is the ultimate reason for conducting research on the effects of aging on aircraft, but cost must be taken into account for the effective implementation of inspection programs. These papers present state of the art research to predict, detect, define, and correct the effects of age and usage on the metals and materials used in construction of aircraft and powerplants. Individual papers are abstracted separately.

  17. Office of Inspector General audit report on aircraft and air service management programs

    SciTech Connect (OSTI)

    NONE

    1999-01-01T23:59:59.000Z

    The Department of Energy`s (DOE) Albuquerque Operations Office (Albuquerque) owns seven aircraft that support defense programs, research and development efforts, emergency response programs, and official travel of Government and contractor employees. An Office of Inspector General (OIG) report, issued in 1994, identified concerns with Albuquerque`s cost for air service. Since that report, there have been reductions in cost and personnel indicating changes in air service requirements. This audit was conducted to determine (1) whether costs to operate Albuquerque`s aircraft were excessive and (2) if individual aircraft in the fleet were justified.

  18. Linking Continuous Energy Management and Open Automated Demand Response

    E-Print Network [OSTI]

    Piette, Mary Ann

    2009-01-01T23:59:59.000Z

    Linking Continuous Energy Management and Open AutomatedKeywords: Continuous Energy Management, Automated Demandlinking continuous energy management and continuous

  19. Continuous Growth of Vertically Aligned Carbon Nanotubes Forests

    E-Print Network [OSTI]

    Guzman de Villoria, Roberto

    Vertically aligned carbon nanotubes are one of the most promising materials due their numerous applications in flexible electronic devices, biosensors and multifunctional aircraft materials, among others. However, the ...

  20. BCP Annual Rate Process

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

    2015 BCP Annual Rate Process (FY 2016 Base Charge & Rate) Informal Process Rate Activity Schedule (doc) Informal Customer Meeting Thursday March 11, 2015 at 10:30 A.M. Conf Rms 3&4...

  1. Continuous lengths of oxide superconductors

    DOE Patents [OSTI]

    Kroeger, Donald M. (Knoxville, TN); List, III, Frederick A. (Andersonville, TN)

    2000-01-01T23:59:59.000Z

    A layered oxide superconductor prepared by depositing a superconductor precursor powder on a continuous length of a first substrate ribbon. A continuous length of a second substrate ribbon is overlaid on the first substrate ribbon. Sufficient pressure is applied to form a bound layered superconductor precursor powder between the first substrate ribbon and the second substrate ribbon. The layered superconductor precursor is then heat treated to establish the oxide superconducting phase. The layered oxide superconductor has a smooth interface between the substrate and the oxide superconductor.

  2. Continuous production of polymethylpentene membranes

    DOE Patents [OSTI]

    Epperson, Bonnie J. (San Diego, CA); Burnett, Lowell J. (San Diego, CA); Helm, Verne D. (Plains, MT)

    1983-11-15T23:59:59.000Z

    Gas separation membranes may be prepared in a continuous manner by passing a porous support which may, if so desired, be backed by a fabric through a solution of polymethylpentene dissolved in an organic solvent such as hexane. The support member is passed through the solution while one side thereof is in contact with a roller, thereby permitting only one side of the support member to be coated with the polymer. After continuously withdrawing the support member from the bath, the solvent is allowed to evaporate and the resulting membrane is recovered.

  3. A physics-based emissions model for aircraft gas turbine combustors

    E-Print Network [OSTI]

    Allaire, Douglas L

    2006-01-01T23:59:59.000Z

    In this thesis, a physics-based model of an aircraft gas turbine combustor is developed for predicting NO. and CO emissions. The objective of the model is to predict the emissions of current and potential future gas turbine ...

  4. astovl lift-fan aircraft: Topics by E-print Network

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

    Generation CiteSeer Summary: Many aircraft make use of an on-board oxygen generation system to provide breathing oxygen for the aircrew. Compared to historical experience, there...

  5. Design of a model propulsor for a boundary layer ingesting aircraft

    E-Print Network [OSTI]

    Grasch, Adam D. (Adam Davis)

    2013-01-01T23:59:59.000Z

    This thesis presents contributions to the analysis and design of propulsion simulators for 1:11 and 1:4 scale model wind tunnel investigations of an advanced civil transport aircraft with boundary layer ingestion (BLI). ...

  6. Cost-benefit analysis of aircraft design for environment using a fleet perspective and real options

    E-Print Network [OSTI]

    Hynes, Christopher Dennis

    2005-01-01T23:59:59.000Z

    Traditional multidisciplinary design optimization (MDO) approaches do not examine the costs associated with damage due to environmental factors and are usually implemented to examine one aircraft. The Environmental Design ...

  7. Camera that takes pictures of aircraft and ground vehicle tires can save lives

    E-Print Network [OSTI]

    Wiseman, Yair

    ;Camera that takes pictures of aircraft and ground vehicle tires can save lives Yair Wiseman Holon Institute of Technology Computer Science Department Holon 58102, Israel E-mail: wiseman

  8. Reconfigurable autopilot design for a high performance aircraft using model predictive control

    E-Print Network [OSTI]

    Ruiz, Jose Pedro, 1980-

    2004-01-01T23:59:59.000Z

    The losses of military and civilian aircraft due to control surface failures have prompted research into controllers with a degree of reconfiguration. This thesis will describe a design approach incorporating Model Predictive ...

  9. Development and assessment of a soot emissions model for aircraft gas turbine engines

    E-Print Network [OSTI]

    Martini, Bastien

    2008-01-01T23:59:59.000Z

    Assessing candidate policies designed to address the impact of aviation on the environment requires a simplified method to estimate pollutant emissions for current and future aircraft gas turbine engines under different ...

  10. Extending safety assessment methods for remotely piloted aircraft operations in the national airspace system

    E-Print Network [OSTI]

    Horrell, Alexander C. (Alexander Chapman)

    2012-01-01T23:59:59.000Z

    Remotely Piloted Aircraft operations are growing rapidly in the United States specifically for the Department of Defense to achieve training needs. To ensure the safety of the National Airspace System is maintained to a ...

  11. Development and Implementation of a Statistical Risk Assessment Method for New Aircraft Performance at XYZ Corporation

    E-Print Network [OSTI]

    Schroeder, Christopher R.

    2009-12-18T23:59:59.000Z

    At XYZ Corporation (XYZ), the standard method of creating aircraft performance guarantees does not incorporate engineering risk or uncertainty. Since performance guarantees are a contractual agreement to the customer, the customer is not obligated...

  12. A solution to the inherent list on Nimitz class aircraft carriers

    E-Print Network [OSTI]

    Wolfson, Dianna

    2004-01-01T23:59:59.000Z

    Nimitz class aircraft carriers possess an inherent list to starboard that their list control systems (LCS) are typically unable to correct while under Combat Load Conditions. As a result, it has become necessary to use ...

  13. Strategy for reducing the length and variability of aircraft lead time

    E-Print Network [OSTI]

    Bielat, Brendon (Brendon Michael)

    2010-01-01T23:59:59.000Z

    Helicopter manufacturers typically build each aircraft to order, and the lead time for make or buy parts and assemblies can be several months or more. The manufacturers generally have a backlog of orders at any given time, ...

  14. Performance and Emission Characteristics of an Aircraft Turbo Diesel Engine using JET-A Fuel

    E-Print Network [OSTI]

    Underwood, Sean Christopher

    2008-05-05T23:59:59.000Z

    Performance and emission data was acquired by testing an aircraft turbo diesel engine with JET-A at the Mal Harned Propulsion Laboratory of the University of Kansas. The performance data was analyzed and compared to the presented data...

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

    E-Print Network [OSTI]

    Randall, Brian Edward

    1996-01-01T23:59:59.000Z

    The Gulfstream Commander 700 (N700AE) aircraft owned by the Texas A&M Flight Mechanics Laboratory (FML) is currently being modeled on the Engineering Flight Simulator (EFS) for testing of an integrated cockpit system for general aviation (GA...

  16. Determining appropriate levels of robotic automation in commercial aircraft nacelle assembly

    E-Print Network [OSTI]

    Durham, Bryce J. (Bryce James)

    2014-01-01T23:59:59.000Z

    This thesis examines the application of reconfigurable industrial robotics in the assembly of the engine nacelle inlet for a commercial aircraft. In addition to addressing the achievable level of automation, this thesis ...

  17. The evolution of U.S. commercial domestic aircraft operations from 1991 to 2010

    E-Print Network [OSTI]

    Wulz, Alexander Andrew

    2012-01-01T23:59:59.000Z

    The main objective of this thesis is to explore the evolution of U.S. commercial domestic aircraft operations from 1991 to 2010 and describe the implications for future U.S. commercial domestic fleets. Using data collected ...

  18. Optimization of opportunistic replacement activities: A case study in the aircraft industry

    E-Print Network [OSTI]

    Patriksson, Michael

    must there- fore be opportunistic, incorporating preventive maintenance activities within the scheduled to consider that the maintenance event is an opportunity for preventive maintenance#22;an opportunity Svensson # Abstract In the aircraft industry maximizing availability is essential. Maintenance schedules

  19. Microphysical modeling of ultrane hydrocarbon-containing aerosols in aircraft emissions

    E-Print Network [OSTI]

    Jun, Mina

    2011-01-01T23:59:59.000Z

    Combustion engines emit precursors of ne particulate matter (PM) into the atmosphere. Numerous gaseous species, soot particles, and liquid aerosols in the aircraft exhaust are involved in PM formation, and these very ne, ...

  20. The Trust Region Sequential Quadratic Programming method applied to two-aircraft acoustic optimal control problem

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The Trust Region Sequential Quadratic Programming method applied to two-aircraft acoustic optimal of the environmental pollution and noise impact, ACARE requires a 50% reduction of perceived noise for 2020. This goal

  1. Application of Real Options to Evaluate the Development Process of New Aircraft Models

    E-Print Network [OSTI]

    Miller, Bruno

    2004-01-01T23:59:59.000Z

    Investment decisions in the development and production of new aircraft models is difficult because of the technical and market uncertainties associated with such a complex process. The accompanying risks can be

  2. aircraft life-support systems: Topics by E-print Network

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

    members with food, potable water Baruh, Haim 125 The 2011 Cessna Aircraft CompanyRaytheon Missile Systems DesignBuildFly Competition Flyoff was held at TIMPA Field in...

  3. The cost of noise reduction for departure and arrival operations of commercial tilt rotor aircraft

    E-Print Network [OSTI]

    Faulkner, Henry B.

    1976-01-01T23:59:59.000Z

    The relationship between direct operating cost (DOC) and noise annoyance due to a departure and an arrival operation was developed for commercial tilt rotor aircraft. This was accomplished by generating a series of tilt ...

  4. Design of an instrumented workpart for robotic aircraft wing-box assembly

    E-Print Network [OSTI]

    Kaina, Leighton

    2006-01-01T23:59:59.000Z

    The idea of an underactuated robotic arm used in aircraft wing assembly and production was created to improve the wing-box assembly process. In order to display the robots capabilities and areas of improvement, a suitable ...

  5. Design of multifunctional paired robots engaged across a thin plate for aircraft manufacturing and maintenance

    E-Print Network [OSTI]

    Karasic, Geoffrey Ian

    2011-01-01T23:59:59.000Z

    The aircraft industry lacks an automated system for wing box manufacturing and maintenance. Currently workers assemble and inspect thousands of fasteners in the wing structure by hand. This manufacturing process consumes ...

  6. Design and acoustic shielding prediction of hybrid wing-body aircraft

    E-Print Network [OSTI]

    Ng, Leo Wai-Tsun

    2009-01-01T23:59:59.000Z

    Recent research and developmental efforts in aircraft design have focused on the growing concerns about the environment impact of aviation and the rising costs of fuel. Under NASA's N+2 subsonics fixed-wing project, ...

  7. The multidisciplinary design and organization of an unconventional, extremely quiet transport aircraft

    E-Print Network [OSTI]

    Diedrich, Adam John, 1980-

    2005-01-01T23:59:59.000Z

    (cont.) aircraft. A design which utilized the results of the trade studies was presented and evaluated. The performance was reviewed in terms of aerodynamics, weight, economics, operations, and acoustics. The resulting ...

  8. The cost of noise reduction for powered-lift S.T.O.L. aircraft

    E-Print Network [OSTI]

    Moore, Wesley F.

    1973-01-01T23:59:59.000Z

    The direct operating costs and noise impacts of a wide variety of Externally Blown Flap and Augmentor Wing STOL short haul transport aircraft designs were evaluated to study the costs of noise reduction for these types of ...

  9. Research Rate Liaison Rate for outside academic &

    E-Print Network [OSTI]

    Gilchrist, James F.

    as of 12/9/13 External Rate Spark Plasma Sintering ) Spark Plasma Sintering > 24 hrs 2 8 Vacuum Hot Press

  10. 2012 Transmission Rate Schedules

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

    2014 Transmission, Ancillary, and Control Area Service Rate Schedules and General Rate Schedule Provisions (FY 2014-2015) October 2013 United States Department of Energy...

  11. Effective Rate Period

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

    10012014 - 03312015 Mid-Year Change (if applicable) 10012014 - 09302015 Power Rates Annual Revenue Requirement Rate Schedule Power Revenue Requirement 70,091,227 CV-F13...

  12. Effective Rate Period

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

    of the FY Mid-Year Change 10012013 - 03312014 04012014 - 09302014 Power Rates Annual Revenue Requirement Rate Schedule Power Revenue Requirement 73,441,557...

  13. 2004 Rate Adjustments

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

    for Transmission and Ancillary Services Federal Register Notice -- Rate Order WAPA-141: Notice of Extension of Formula Rates for Transmission and Ancillary Services If you have any...

  14. WAPA-169 Rate Order

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

    69 Rate Order Western is proposing adjustments to the Salt Lake City Area Integrated Projects firm power rate and the Colorado River Storage Project Transmission and ancillary...

  15. Multiple System Rate Process

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

    DSW Multiple System Transmission Rate Process Federal Register Notice Withdrawing Rate Proposal (PDF) Formal Process Extension Federal Register Notice (PDF) Customer Savisngs Under...

  16. Durability testing of an aircraft structural health monitoring system

    E-Print Network [OSTI]

    Chambers, Jeffrey Thomas

    2006-01-01T23:59:59.000Z

    Structural health monitoring (SHM) is an emerging technology leading to systems capable of continuously monitoring structures for damage. Aerospace structures have one of the highest payoffs for SHM systems because damage ...

  17. Instrumentation of a light twin aircraft for flow energizer flight tests

    E-Print Network [OSTI]

    Binford, Robert Susumu

    1986-01-01T23:59:59.000Z

    INSTRUMDITATION OF A LIGHT TWIN AIRCRAFT FOR FLOW ENERGIZER FLIGHT TESTS A Thesis by ROBERT SUSUMU BINFORD Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements for the degree of HASTER... OF SCIENCE August 1986 MaJor SubJect: Aerospace Engineering INSTRUMENTATION OF A LIGHT TWIN AIRCRAFT FOR FLOW ENERGIZER FLIGHT TESTS A Thesis by ROBERT SUSUMU BINFORD Approved as to style and content by: Donald T. Ward (Chairman of Committee) Cyrus...

  18. A method of evaluating the performance deterioration of aircraft gas-turbines

    E-Print Network [OSTI]

    Subramanian, V

    1978-01-01T23:59:59.000Z

    A METHOD OF EVALUATING THE PERFORMANCE DETERIORATION OF AIRCRAFT GAS-TURBINES A Thesis by V. SUBRAMANIAN Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... May 1978 Major Subject: Mechanical Engineering A METHOD OF EVALUATING THE PERFORMANCE DETERIORATION OF AIRCRAFT GAS-TURBINES A Thesis by V. SUBRAMANIAN Approved as to style and content by: Charrman o Commztt (Head o D pa ment Sg D~ Member...

  19. A network approach for identifying minimum-cost aircraft routing and fuel-allocating decisions

    E-Print Network [OSTI]

    Kabbani, Nader Mahmoud

    1988-01-01T23:59:59.000Z

    of aircraft fuel utilization and conservation were This thesis conforms to Operations Research standards on format and style. needed. These training programs, imposed by the Federal Aviation Administration (FAA), have helped emphasize the significance... of potential traffic bottlenecks, thus leading to more fuel-efficient aircraft models. The Federal Aviation Administration (FAA) is co- ordinating the model, which they view as a way to alleviate problems concerning both short- and long-term strategic...

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

    E-Print Network [OSTI]

    Rong, Jie

    2002-01-01T23:59:59.000Z

    INTELLIGENT EXECUTIVE GUIDANCE AGENT FOR GENERAL AVIATION AIRCRAFT UNDER FREE FLIGHT A Thesis by JIE RONG Subnutted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 2002 Malor Subject: Aerospace Engineering INTELLIGENT EXECUTIVE GUIDANCE AGENT FOR GENERAL AVIATION AIRCRAFT UNDER FREE FLIGHT A Thesis by JIE RONG Submitted to Texas A&M University in partial fulfillment of the requirements...

  1. The potential of future aircraft technology for noise and pollutant emissions reduction

    E-Print Network [OSTI]

    Graham, W. R.; Hall, C. A.; Vera Morales, M.

    2014-03-27T23:59:59.000Z

    drag’ associated with wasted kinetic energy in the aircraft’s wake. Induced drag depends on the ‘aspect ratio’ of the wing; it is reduced when the span is increased. The parametric dependence of Eq. (1) is even clearer if the argument... ) are associated with a range of air-quality-related human health impacts through several different paths. They also play a significant part in atmospheric chemistry, and thereby can enhance or mitigate the radiative heating of the earth, depending on altitude...

  2. continued next page... Medical Education

    E-Print Network [OSTI]

    Chaudhuri, Sanjay

    in the healthcare scene. With the explosion of medical information and advances in medical technology, medical In this digital era of information explosion and rapid advances in medical sciences and medical technologyinside continued next page... Medical Education: Enhancing Learning in the Affective (Feeling

  3. (continued on back) SPRCChildhood Obesity

    E-Print Network [OSTI]

    Ford, James

    (continued on back) SPRCChildhood Obesity: A Growing Problem Stanford's Approach 0% 2% 4% 6% 8% 10. The cause of these conditions? Obesity. An alarming number of American children--perhaps as many as 1 in 5 increases among children from lower-income and ethnic minority families. This epidemic of obesity

  4. Main Riff (continue pattern) E-|-----------------------------------------------------------|

    E-Print Network [OSTI]

    Reiners, Peter W.

    Main Riff (continue pattern) E-|-----------------------------------------------------------| B-|-----------------------------------------------------------| A-|-2--2----2--4--5----5--5--4--2--2--------------------------| E-|-----------------------------------------------------------| CHORUS (guitar chords are weak/intermittent): E A E A I can't get no satisfaction I can't get

  5. CONTROVERSIES in Continuous Glucose Monitoring

    E-Print Network [OSTI]

    Science and Technology Volume 2, Issue 3, May 2008 © Diabetes Technology Society Abstract Continuous Sci Technol 2008;2(3):490-494 CGM: An Enabling Technology In Need of a Killer App In the jargon may not sell. On the other hand, the application is useless without the sophisticated device to run it

  6. Data development technical support document for the aircraft crash risk analysis methodology (ACRAM) standard

    SciTech Connect (OSTI)

    Kimura, C.Y.; Glaser, R.E.; Mensing, R.W.; Lin, T.; Haley, T.A.; Barto, A.B.; Stutzke, M.A.

    1996-08-01T23:59:59.000Z

    The Aircraft Crash Risk Analysis Methodology (ACRAM) Panel has been formed by the US Department of Energy Office of Defense Programs (DOE/DP) for the purpose of developing a standard methodology for determining the risk from aircraft crashes onto DOE ground facilities. In order to accomplish this goal, the ACRAM panel has been divided into four teams, the data development team, the model evaluation team, the structural analysis team, and the consequence team. Each team, consisting of at least one member of the ACRAM plus additional DOE and DOE contractor personnel, specializes in the development of the methodology assigned to that team. This report documents the work performed by the data development team and provides the technical basis for the data used by the ACRAM Standard for determining the aircraft crash frequency. This report should be used to provide the generic data needed to calculate the aircraft crash frequency into the facility under consideration as part of the process for determining the aircraft crash risk to ground facilities as given by the DOE Standard Aircraft Crash Risk Assessment Methodology (ACRAM). Some broad guidance is presented on how to obtain the needed site-specific and facility specific data but this data is not provided by this document.

  7. An Attentional Theory of Continuity Editing 

    E-Print Network [OSTI]

    Smith, Tim J

    The intention of most film editing is to create the impression of continuous action (“continuity”) by presenting discontinuous visual information. The techniques used to achieve this, the continuity editing rules, are ...

  8. CRAD, Feedback and Continuous Improvement - DOE Headquarters...

    Office of Environmental Management (EM)

    CRAD, Feedback and Continuous Improvement - DOE Headquarters - December 4, 2007 CRAD, Feedback and Continuous Improvement - DOE Headquarters - December 4, 2007 December 4, 2007...

  9. DOE Continues Aggressive Energy Efficiency Enforcement Effort...

    Energy Savers [EERE]

    Continues Aggressive Energy Efficiency Enforcement Effort with Nearly 30 New Proposed Penalties DOE Continues Aggressive Energy Efficiency Enforcement Effort with Nearly 30 New...

  10. Process systems engineering of continuous pharmaceutical manufacturing

    E-Print Network [OSTI]

    Abel, Matthew J

    2010-01-01T23:59:59.000Z

    Continuous manufacturing offers a number of operational and financial benefits to pharmaceutical companies. This research examines the critical blending step for continuous pharmaceutical manufacturing and the characteristics ...

  11. Continuous scanning mode for ptychography

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

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

    2014-01-01T23:59:59.000Z

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

  12. Office of Inspector General audit report on the U.S. Department of Energy`s aircraft activities

    SciTech Connect (OSTI)

    NONE

    1999-01-01T23:59:59.000Z

    On October 19, 1998, the Office of Inspector General (OIG) was asked to undertake a review of the Department of Energy`s aircraft activities. It was also requested that they report back within 90 days. The OIG has gathered information concerning the number of aircraft, the level of utilization, and the cost of the Department`s aircraft operations. They have also briefly summarized four issues that, in their judgment, may require management attention.

  13. Aircraft de-icer: Recycling can cut carbon emissions in half

    SciTech Connect (OSTI)

    Johnson, Eric P., E-mail: ejohnson@ecosite.co.uk

    2012-01-15T23:59:59.000Z

    Flight-safety regulations in most countries require aircraft to be ice-free upon takeoff. In icy weather, this means that the aircraft usually must be de-iced (existing ice is removed) and sometimes anti-iced (to protect against ice-reformation). For both processes, aircraft typically are sprayed with an 'antifreeze' solution, consisting mainly of glycol diluted with water. This de/anti-icing creates an impact on the environment, of which environmental regulators have grown increasingly conscious. The US Environmental Protection Agency (EPA), for example, recently introduced stricter rules that require airports above minimum size to collect de-icing effluents and send them to wastewater treatment. De-icer collection and treatment is already done at most major airports, but a few have gone one step further: rather than putting the effluent to wastewater, they recycle it. This study examines the carbon savings that can be achieved by recycling de-icer. There are two key findings. One, recycling, as opposed to not recycling, cuts the footprint of aircraft de-icing by 40-50% - and even more, in regions where electricity-generation is cleaner. Two, recycling petrochemical-based de-icer generates a 15-30% lower footprint than using 'bio' de-icer without recycling. - Highlights: Black-Right-Pointing-Pointer Carbon footprint of aircraft de-icing can be measured. Black-Right-Pointing-Pointer Recycling aircraft de-icer cuts the footprint of aircraft de-icing by 40-50%. Black-Right-Pointing-Pointer Recycling 'fossil' de-icer is lower carbon than not recycling 'bio' de-icer.

  14. CONTINUATION S EFIIERENCE NO OF DOCUMENT BEING CONTINUED AEO

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWPSuccess StoriesFebruary 26, 2014,Lab SeptemberCONTINUATION S

  15. CONTINUATION SHEET REFERENCE NO. OF DOCUMENT BEING CONTINUED

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWPSuccess StoriesFebruary 26, 2014,Lab SeptemberCONTINUATION SNSN

  16. Comparison of improved Aura Tropospheric Emission Spectrometer (TES) CO2 with HIPPO and SGP aircraft profile measurements

    E-Print Network [OSTI]

    Kulawik, S.S.

    2013-01-01T23:59:59.000Z

    Spectrometer stare ozone profiles with ARC-IONS sondespriori of trace gas profile estimates from the TroposphericHIPPO and SGP aircraft profile measurements S. S. Kulawik ,

  17. JOB DESCRIPTION Title: Continuous Improvement Specialist

    E-Print Network [OSTI]

    Heller, Barbara

    or Six Sigma-based continuous improvement methods. Certification: Six Sigma Black Belt or Green Belt

  18. Diesel prices continue to decrease

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract Management FermiDavid TurnerExperimentalDiesel prices continue to

  19. Diesel prices continue to decrease

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract Management FermiDavid TurnerExperimentalDiesel prices continue

  20. Diesel prices continue to decrease

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract Management FermiDavid TurnerExperimentalDiesel prices continueDiesel

  1. Diesel prices continue to increase

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract Management FermiDavidDiesel prices continue to increase The U.S.

  2. Diesel prices continue to increase

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract Management FermiDavidDiesel prices continue to increase The

  3. Diesel prices continue to increase

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract Management FermiDavidDiesel prices continue to increase TheDiesel

  4. Diesel prices continue to rise

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract Management FermiDavidDiesel prices continue to increaseDiesel prices

  5. Flight test techniques for aircraft parameter estimation in ground effect

    E-Print Network [OSTI]

    Clark, James Matthew

    1993-01-01T23:59:59.000Z

    of attack CDU Variation of drag with airspeed CDq Variation of drag with pitch rate CDa Variation of drag with angle of attack /rad or /deg CDSe Variation of drag with elevator deflection /rad or /deg CL0 Lift coefficient at zero angle of attack CLU... Variation of lift with airspeed CL* Variation of lift with pitch rate CLa Variation of lift with angle of attack /rad or /deg CLSe Variation of lift with elevator deflection /rad or /deg Clp Variation of rolling moment with roll rate Clr Variation...

  6. Designing an enzymatic oscillator: Bistability and feedback controlled oscillations with glucose oxidase in a continuous flow stirred tank reactor

    E-Print Network [OSTI]

    Epstein, Irving R.

    oxidase in a continuous flow stirred tank reactor Vladimir K. Vanag,a David G. Míguez,b and Irving R as the flow rate is varied in a continuous flow stirred tank reactor. Oscillations in pH can be obtained experiments, this feedback consists of an inflow of hydroxide ion at a rate that depends on H+ in the reactor

  7. cAnt-Miner: An Ant Colony Classification Algorithm to Cope with Continuous Attributes

    E-Print Network [OSTI]

    Heinke, Dietmar

    cAnt-Miner: An Ant Colony Classification Algorithm to Cope with Continuous Attributes Fernando E. B {febo2,A.A.Freitas,C.G.Johnson}@kent.ac.uk Abstract. This paper presents an extension to Ant-Miner, named cAnt- Miner (Ant-Miner coping with continuous attributes), which incorpo- rates an entropy

  8. Continuous Precipitation of Ceria Nanoparticles from a Continuous Flow Micromixer

    SciTech Connect (OSTI)

    Tseng, Chih Heng; Paul, Brian; Chang, Chih-hung; Engelhard, Mark H.

    2013-01-01T23:59:59.000Z

    Cerium oxide nanoparticles were continuously precipitated from a solution of cerium(III) nitrate and ammonium hydroxide using a micro-scale T-mixer. Findings show that the method of mixing is important in the ceria precipitation process. In batch mixing and deposition, disintegration and agglomeration dominates the deposited film. In T-mixing and deposition, more uniform nanorod particles are attainable. In addition, it was found that the micromixing approach reduced the exposure of the Ce(OH)3 precipates to oxygen, yielding hydroxide precipates in place of CeO2 precipitates. Advantages of the micro-scale T-mixing approach include shorter mixing times, better control of nanoparticle shape and less agglomeration.

  9. High-bandwidth continuous-flow arc furnace

    DOE Patents [OSTI]

    Hardt, D.E.; Lee, S.G.

    1996-08-06T23:59:59.000Z

    A high-bandwidth continuous-flow arc furnace for stream welding applications includes a metal mass contained in a crucible having an orifice. A power source charges an electrode for generating an arc between the electrode and the mass. The arc heats the metal mass to a molten state. A pressurized gas source propels the molten metal mass through the crucible orifice in a continuous stream. As the metal is ejected, a metal feeder replenishes the molten metal bath. A control system regulates the electrode current, shielding gas pressure, and metal source to provide a continuous flow of molten metal at the crucible orifice. Independent control over the electrode current and shield gas pressure decouples the metal flow temperature and the molten metal flow rate, improving control over resultant weld characteristics. 4 figs.

  10. High-bandwidth continuous-flow arc furnace

    DOE Patents [OSTI]

    Hardt, David E. (Concord, MA); Lee, Steven G. (Ann Arbor, MI)

    1996-01-01T23:59:59.000Z

    A high-bandwidth continuous-flow arc furnace for stream welding applications includes a metal mass contained in a crucible having an orifice. A power source charges an electrode for generating an arc between the electrode and the mass. The arc heats the metal mass to a molten state. A pressurized gas source propels the molten metal mass through the crucible orifice in a continuous stream. As the metal is ejected, a metal feeder replenishes the molten metal bath. A control system regulates the electrode current, shielding gas pressure, and metal source to provide a continuous flow of molten metal at the crucible orifice. Independent control over the electrode current and shield gas pressure decouples the metal flow temperature and the molten metal flow rate, improving control over resultant weld characteristics.

  11. Revisiting the Aging Aircraft Nondestructive Inspection Validation Center -- A resource for the FAA and industry

    SciTech Connect (OSTI)

    Smith, C. [Federal Aviation Administration, Atlantic City, NJ (United States). FAATC Technical Center; Walter, P.L. [Sandia National Labs., Albuquerque, NM (United States)

    1995-08-01T23:59:59.000Z

    The Aging Aircraft Nondestructive Inspection Validation Center (commonly designated AANC or The Validation Center) was founded by the Federal Aviation Administration (FAA) in response to the Aviation Safety Research Act of 1988, which mandates that the FAA carry out research and develop technologies to help the aviation industry to (1) better predict the effects of design, maintenance, testing, wear and fatigue in the life of an aircraft; (2) develop methods for improving aircraft maintenance technology and practices including nondestructive inspection; and (3) expand general long range research activities applicable to aviation systems. The AANC validates NDI technology, provides a quick response capability, assesses the reliability of NDI applications, and performs other projects to support the FAA and aviation industry. Sandia National Laboratories was funded by the FAA in August 1991 to establish the Validation Center at Albuquerque International Airport.

  12. Pressurized tundish for controlling a continuous flow of molten metal

    DOE Patents [OSTI]

    Lewis, Thomas W. (964 Cork Dr., Bethel Park, PA 15102); Hamill, Jr., Paul E. (R.D. #1, Box 173A1, Jeannette, PA 15644); Ozgu, Mustafa R. (790 Yorkshire Rd., Bethlehem, PA 18017); Padfield, Ralph C. (1918 Paul Ave., Bethlehem, PA 18018); Rego, Donovan N. (1703 W. Brown St., Allentown, PA 18104); Brita, Guido P. (3225 Edna Terrace Ave., Bethlehem, PA 18017)

    1990-01-01T23:59:59.000Z

    A pressurized tundish for controlling a continous flow of molten metal characterized by having a pair of principal compartments, one being essentially unpressurized and receiving molten metal introduced thereto, and the other being adapted for maintaining a controlled gaseous pressure over the surface of the fluid metal therein, whereby, by controlling the pressure within the pressurized chamber, metal exiting from the tundish is made to flow continually and at a controlled rate.

  13. Production expansion continues to accelerate

    SciTech Connect (OSTI)

    Not Available

    1992-08-01T23:59:59.000Z

    This paper reports that Saudi Arabian Oil Co. (Saudi Aramco) is continuing its accelerated Crude Oil Expansion Program initiated in 1989 that aims at achieving a 10 million bpd productive capacity by 1995. In addition to major engineering, construction and renovation work related to production expansion, Saudi Aramco drilling and workover operations have been markedly expanded. Since January 1991, rig activity has doubled. As an indication of aging of Saudi production, projects include modernizing current injection water treatment facilities, installing a new seawater injection plant on the Persian Gulf, installing dewatering facilities in a number of locations and installing a pilot gas lift project. In addition, equipment orders indicate the new discoveries south of Riyadh may also need the assistance of water injection from inception of production.

  14. Continuously variable focal length lens

    DOE Patents [OSTI]

    Adams, Bernhard W; Chollet, Matthieu C

    2013-12-17T23:59:59.000Z

    A material preferably in crystal form having a low atomic number such as beryllium (Z=4) provides for the focusing of x-rays in a continuously variable manner. The material is provided with plural spaced curvilinear, optically matched slots and/or recesses through which an x-ray beam is directed. The focal length of the material may be decreased or increased by increasing or decreasing, respectively, the number of slots (or recesses) through which the x-ray beam is directed, while fine tuning of the focal length is accomplished by rotation of the material so as to change the path length of the x-ray beam through the aligned cylindrical slows. X-ray analysis of a fixed point in a solid material may be performed by scanning the energy of the x-ray beam while rotating the material to maintain the beam's focal point at a fixed point in the specimen undergoing analysis.

  15. 60GHz Wireless Nano-Sensors Network for Structure Health Monitoring as Enabler for Safer, Greener Aircrafts

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    60GHz Wireless Nano-Sensors Network for Structure Health Monitoring as Enabler for Safer, Greener-objects for Structure Health Monitoring in the aircrafts and the improvements bring by the nanotechnologies. The main the cabin of an aircraft and the choice of the network architecture. Keywords: Structure Health Monitoring

  16. Abstract--This paper presents a vision-based navigation solution for unmanned aircraft operations on airfield surfaces

    E-Print Network [OSTI]

    Frew, Eric W.

    Hawk, significant effort is required to survey each airfield at which the UAS will operate, and to specify detailedAbstract--This paper presents a vision-based navigation solution for unmanned aircraft operations on airfield surfaces in GPS-denied environments. The Unmanned Aircraft System Ground Operations Management

  17. Atmospheric CO{sub 2} concentrations the CSIRO (Australia) monitoring program from aircraft 1972 - 1981

    SciTech Connect (OSTI)

    Beardsmore, D.J.; Pearman, G.I. [Commonwealth Scientific Industrial Research Organization (CSIRO), Victoria (Australia). Division of Atmospheric Research

    1984-09-01T23:59:59.000Z

    Atmospheric CO{sub 2} concentrations were measured in the troposphere and lower stratosphere over the Australia-New Zealand region and as far south as Antarctica for the period 1972-1981. The samples were collected from aircraft over a large range of latitudes and altitudes. The sampling program has been based on the cooperation of the Australia Department of Transport, Quantas Airways, Trans Australia Airlines, the United States, New Zealand and Australian Air Forces and occasional chartering of light aircraft for special purposes.

  18. Pollution from motor vehicles and aircraft at Stapleton International Airport (abbreviated report)

    SciTech Connect (OSTI)

    Segal, H.M.

    1987-04-01T23:59:59.000Z

    The air-quality impact of the proposed runaway expansion program at Stapleton International Airport is determined in this report. The method of analysis is to model the dispersion of pollutants from motor vehicles and aircraft under both 1-hour and 8-hour worst-case conditions. Results show that aircraft pollution concentrations are reduced and, in some cases, completely disappear when the new runaways are added. This is caused primarily by a reduction in takeoff delays, which are a major objective of the runaway-expansion programs at the report.

  19. Pollution from motor vehicles and aircraft at Stapleton International Airport (abbreviated report). Revision 2

    SciTech Connect (OSTI)

    Segal, H.M.

    1987-09-01T23:59:59.000Z

    The air-quality impact of the proposed runway-expansion program at Stapleton International Airport is determined in this report. The method of analysis is to model the dispersion of pollutants from motor vehicles and aircraft under both 1-hour and 8-hour worst-case conditions. Results show that aircraft pollution concentrations are reduced and, in some cases, completely disappear when the new runways are added. This is caused primarily by a reduction in takeoff delays, which are major objective of the runway-expansion program at the airport.

  20. Uncertainty Analysis for Photovoltaic Degradation Rates (Poster)

    SciTech Connect (OSTI)

    Jordan, D.; Kurtz, S.; Hansen, C.

    2014-04-01T23:59:59.000Z

    Dependable and predictable energy production is the key to the long-term success of the PV industry. PV systems show over the lifetime of their exposure a gradual decline that depends on many different factors such as module technology, module type, mounting configuration, climate etc. When degradation rates are determined from continuous data the statistical uncertainty is easily calculated from the regression coefficients. However, total uncertainty that includes measurement uncertainty and instrumentation drift is far more difficult to determine. A Monte Carlo simulation approach was chosen to investigate a comprehensive uncertainty analysis. The most important effect for degradation rates is to avoid instrumentation that changes over time in the field. For instance, a drifting irradiance sensor, which can be achieved through regular calibration, can lead to a substantially erroneous degradation rates. However, the accuracy of the irradiance sensor has negligible impact on degradation rate uncertainty emphasizing that precision (relative accuracy) is more important than absolute accuracy.

  1. Process and continuous apparatus for chemical conversion of materials

    DOE Patents [OSTI]

    Rugg, Barry (New York, NY); Stanton, Robert (Ramsey, NJ)

    1983-01-01T23:59:59.000Z

    A process and apparatus for the acid hydrolysis of waste cellulose to glucose of the type wherein waste cellulose is continuously fed into an inlet port of a twin screw extruder, water is continuously fed into reaction zone in the extruder, downstream of the inlet port, the cellulose is continuously reacted with water in the presence of an acid catalyst at elevated temperature and pressure in the reaction zone while being continuously conveyed to an outlet port of the extruder having a given diameter and the reacted cellulose is discharged from the extruder while the elevated temperature and pressure in the reaction zone is maintained. The elevated pressure is maintained by forming a dynamic seal zone at the upstream end of the reaction and continuously discharging the reacted material downstream of the outlet port at a predetermined volume rate of flow to maintain the pressure by passing the discharge through an orifice pipe having a smaller diameter than the given diameter of the outlet port.

  2. Rate Schedule CPP-2

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

    CPP-2 (Supersedes Schedule CPP-1) UNITED STATES DEPARTMENT OF ENERGY WESTERN AREA POWER ADMINISTRATION CENTRAL VALLEY PROJECT SCHEDULE OF RATES FOR CUSTOM PRODUCT POWER Effective:...

  3. LCC Guidance Rates

    Broader source: Energy.gov [DOE]

    Notepad text file provides the LCC guidance rates in a numbered format for the various regions throughout the U.S.

  4. Effective Rate Period

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

    charges or credits associated with the creation, termination, or modification to any tariff, contract, or rate schedule accepted or approved by the Federal Energy Regulatory...

  5. Residential Solar Valuation Rates

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

    Residential Solar Valuation Rates Karl R. Rbago Rbago Energy LLC 1 The Ideal Residential Solar Tariff Fair to the utility and non-solar customers Fair compensation to...

  6. Catalyst immobilization techniques for continuous flow synthesis

    E-Print Network [OSTI]

    Nagy, Kevin David

    2012-01-01T23:59:59.000Z

    Catalytic processes are ubiquitous in both research and industrial settings. As continuous flow processes continue to gain traction in research labs and fine and pharmaceutical chemical processes, new opportunities exist ...

  7. Continuous Air Monitor Operating Experience Review

    SciTech Connect (OSTI)

    L. C. Cadwallader; S. A. Bruyere

    2008-09-01T23:59:59.000Z

    Continuous air monitors (CAMs) are used to sense radioactive particulates in room air of nuclear facilities. CAMs alert personnel of potential inhalation exposures to radionuclides and can also actuate room ventilation isolation for public and environmental protection. This paper presents the results of a CAM operating experience review of the DOE Occurrence Reporting and Processing System (ORPS) database from the past 18 years. Regulations regarding these monitors are briefly reviewed. CAM location selection and operation are briefly discussed. Operating experiences reported by the U.S. Department of Energy and in other literature sources were reviewed to determine the strengths and weaknesses of these monitors. Power losses, human errors, and mechanical issues cause the majority of failures. The average “all modes” failure rate is 2.65E-05/hr. Repair time estimates vary from an average repair time of 9 hours (with spare parts on hand) to 252 hours (without spare parts on hand). These data should support the use of CAMs in any nuclear facility, including the National Ignition Facility and the international ITER experiment.

  8. This chapter describes observations of continuing change in the Arctic environmental system. It is or-

    E-Print Network [OSTI]

    Bhatt, Uma

    for the longest period and largest area of ice sheet melt since at least 1978, and the highest melt rate since in the Canadian Arctic, where the rate of mass loss from small glaciers and ice caps continued to increase system. It is or- ganized into five broad sections: atmosphere, ocean, sea ice cover, land, and Greenland

  9. Power Rate Cases (pbl/rates)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible forPortsmouth/Paducah Project OfficePower Electronics Power Electronics PowerPowerRates

  10. Power Rates Announcements (pbl/rates)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible forPortsmouth/Paducah Project OfficePower Electronics Power Electronics PowerPowerRates

  11. A study of black aurora from aircraft-based optical observations and plasma measurements on FAST

    E-Print Network [OSTI]

    California at Berkeley, University of

    A study of black aurora from aircraft-based optical observations and plasma measurements on FAST L 2002. [1] Black aurora was observed on 30 January 1998 in a narrow-field camera forty seconds before. Electron energy flux measured by FAST provided strong evidence that FAST passed over black aurora

  12. Quantifying wet scavenging processes in aircraft observations of nitric acid and cloud condensation nuclei

    E-Print Network [OSTI]

    Palmer, Paul

    Quantifying wet scavenging processes in aircraft observations of nitric acid and cloud condensation indicator for quantifying wet scavenging. Specifically, nitric acid (HNO3), produced as a by-product of combustion, is highly soluble and removed efficiently from clouds by rain. Regional carbon monoxide (CO

  13. Piezoelectric Wafer Embedded Active Sensors for Aging Aircraft Structural Health Monitoring

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    41 Piezoelectric Wafer Embedded Active Sensors for Aging Aircraft Structural Health Monitoring ends with a conceptual design of a structural health monitoring system and suggestions for aging damage detection Á structural health monitoring Á failure prevention Á ultrasonics Á pulse-echo Á emitter

  14. Simulations of Ozone Distributions in an Aircraft Cabin Using Computational Fluid1 Aakash C. Rai1

    E-Print Network [OSTI]

    Chen, Qingyan "Yan"

    Simulations of Ozone Distributions in an Aircraft Cabin Using Computational Fluid1 Dynamics2 3 10 Ozone is a major pollutant of indoor air. Many studies have demonstrated the adverse health effect of11 ozone and the byproducts generated as a result of ozone-initiated reactive chemistry

  15. CIT Group Inc., 2011. All Rights Reserved. Overview of the Aircraft Leasing Industry

    E-Print Network [OSTI]

    held for sale; data as of 9/30/2010 Excludes liquidating Consumer Segment with portfolio assets of $9B: Loans Leases Fractional Share Financing · Customer base primarily corporate users · Expanding scope, Connecticut, Los Angeles, Chicago. CIT Transportation Leveraged Finance Commercial Airlines Business Aircraft

  16. Aircraft Integrity and Reliability Carlos Ferregut 1 , Roberto A. Osegueda 1 , Yohans Mendoza 1 ,

    E-Print Network [OSTI]

    Kreinovich, Vladik

    @unm.edu Abstract. In his recent paper ``Probability theory needs an infusion of fuzzy logic to enhance its ability to deal with real­world problems'', L. A. Zadeh explains that probability theory needs an infusion of a real­world problem for which such an infusion is indeed successful: the problems of aircraft integrity

  17. Performance Analysis of STOVL Aircraft Nozzle in Hover Frank K. Lu*

    E-Print Network [OSTI]

    Texas at Arlington, University of

    the gross thrust coefficient as a function of nozzle pressure and nozzle area ratios. The analysis is sup- sion system and nacelle, and to employing a variable geometry nozzle system to deflect the thrust1 Performance Analysis of STOVL Aircraft Nozzle in Hover Frank K. Lu* University of Texas

  18. Dynamic State Estimation in Distributed Aircraft Electric Control Systems via Adaptive Submodularity

    E-Print Network [OSTI]

    Xu , Huan

    exists on diagnostics of electric power systems focusing on AC systems [5], as well as large vehicle industry signifies progress in the direction of more energy efficient vehicles. Electric systems are replac, the flight-criticality of an aircraft becomes more dependent on the electric power system as well. Because

  19. Biomass burning emission inventory with daily resolution: Application to aircraft observations of Asian outflow

    E-Print Network [OSTI]

    Palmer, Paul

    Biomass burning emission inventory with daily resolution: Application to aircraft observations for biomass burning using AVHRR satellite observations of fire activity corrected for data gaps and scan angle biomass burning in SE Asia was a major contributor to the outflow of Asian pollution observed in TRACE

  20. Evaluation of transient agility metrics through unmanned simulation of the X-31 post-stall aircraft

    E-Print Network [OSTI]

    Fischer, Shiloh Douglas

    1996-01-01T23:59:59.000Z

    measure, the pitch impulse metric, is developed and simulated on the X-3 IA to describe an aircraft's balance of maximum load factor generation and maintenance during a pitch maneuver. High and low AOA lateral agility tests also show improved roll...

  1. Application of dynamic programming approach to aircraft take-off in a windshear

    E-Print Network [OSTI]

    Turova, Varvara

    speed relative to wind aircraft speed relative to ground relative path inclination angle of attack liftdrag;thrust; (1) (2) #12;Forces Thrust: Drag: Lift: 10 #12;Wind (microburst) 11 #12;Microburst: Model 1 in the presence of wind disturbances, Izv. Ross. Akad. Nauk, Tekhn. Kibernet., no. 1, 68-76, 1993 (in Russian

  2. Prepared by: Shawn Coyle, Aircraft Certification, Flight Test. Transport Canada, Ottawa, Ontario.

    E-Print Network [OSTI]

    Ladkin, Peter B.

    of an identified quality control or other mandated, regulated process on the data once it leaves the National and Security Sécurité et sûreté Canada #12;FMSDB2.DOC 6/5/97ii Executive Summary Aircraft equipped with Flight Management Systems (FMS) and Global Positioning System (GPS1) receivers currently use these devices

  3. Ionospheric Threat Parameterization for Local Area Global-Positioning-System-Based Aircraft Landing Systems

    E-Print Network [OSTI]

    Stanford University

    Ionospheric Threat Parameterization for Local Area Global-Positioning-System-Based Aircraft Landing of user separation. The method of data analysis that produced these results is described, and a threat space that parameterizes these possible threats to user integrity is defined. Certain configurations

  4. Aircraft Microphysical Documentation from Cloud Base to Anvils of Hailstorm Feeder Clouds in Argentina

    E-Print Network [OSTI]

    Daniel, Rosenfeld

    in Argentina DANIEL ROSENFELD The Hebrew University of Jerusalem, Jerusalem, Israel WILLIAM L. WOODLEY Woodley, Argentina, with a cloud-physics jet aircraft penetrating the major feeder clouds from cloud base to the 45°C. Introduction The province of Mendoza in western Argentina (32°S, 68°W), which is known worldwide for its wine

  5. Power systems and requirements for integration of smart structures into aircraft

    E-Print Network [OSTI]

    Lindner, Douglas K.

    Power systems and requirements for integration of smart structures into aircraft Allen J. Lockyer performance improvement, however, integration system impacts have yet to be determined or quantified. Power systems to support smart structures initiatives are the focus of the current paper. The paper has been

  6. A UAV motor denoising technique to improve localization of surrounding noisy aircrafts: proof of

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    task because of the low signal to noise ratio (SNR) due to wind, vibration and own propeller noiseA UAV motor denoising technique to improve localization of surrounding noisy aircrafts: proof on active propulsion using propellers or jets, they emit noise which reveals their presence and position

  7. Distributed 3D Navigation and Collision Avoidance for Nonholonomic Aircraft-like Vehicles

    E-Print Network [OSTI]

    Dimarogonas, Dimos

    Vehicles (AUVs) and Unmanned Aerial Vehicles (UAVs), or automated Air Traffic Control (ATC) in general, Massachusetts Institute of Technology, Cambridge, MA, U.S.A. ddimar@mit.edu underwater vehicles, the aboveDistributed 3D Navigation and Collision Avoidance for Nonholonomic Aircraft-like Vehicles Giannis P

  8. Damage Identification in Aging Aircraft Structures with Piezoelectric Wafer Active Sensors

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Damage Identification in Aging Aircraft Structures with Piezoelectric Wafer Active Sensors VICTOR of structural damage such as fatigue cracks and corrosion. Two main detection strategies are considered: (a) the wave propagation method for far-field damage detection; and (b) the electro-mechanical (E/M) impedance

  9. Damage Identification in Aging Aircraft Structures with Piezoelectric Wafer Active Sensors

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Damage Identification in Aging Aircraft Structures with Piezoelectric Wafer Active Sensors VICTOR the onset and progress of structural damage such as fatigue cracks and corrosion. Two main detection strategies are considered: (a) the wave propagation method for far-field damage detection; and (b

  10. Safety Verification of the Small Aircraft Transportation System Concept of Operations

    E-Print Network [OSTI]

    Muñoz, César A.

    performed for the Small Aircraft Transportation System (SATS) Concept of Operations (ConOps). The concept of operation complies with a set of safety requirements. It is also shown that the ConOps has some desirable of Operations for Higher Volume Operation (SATS-HVO ConOps) has been developed by a team at NASA Langley

  11. Final report on development of Pulse Arrested Spark Discharge (PASD) for aging aircraft wiring application.

    SciTech Connect (OSTI)

    Lockner, Thomas Ramsbeck; Howard, R. Kevin; Peña, Gary Edward; Schneider, Larry X.; Higgins, Matthew B.; Glover, Steven Frank

    2006-09-01T23:59:59.000Z

    Pulsed Arrested Spark Discharge (PASD) is a Sandia National Laboratories Patented, non-destructive wiring system diagnostic that has been developed to detect defects in aging wiring systems in the commercial aircraft fleet. PASD was previously demonstrated on relatively controlled geometry wiring such as coaxial cables and shielded twisted-pair wiring through a contract with the U.S. navy and is discussed in a Sandia National Laboratories report, SAND2001-3225 ''Pulsed Arrested Spark Discharge (PASD) Diagnostic Technique for the Location of Defects in Aging Wiring Systems''. This report describes an expansion of earlier work by applying the PASD technique to unshielded twisted-pair and discrete wire configurations commonly found in commercial aircraft. This wiring is characterized by higher impedances as well as relatively non-uniform impedance profiles that have been found to be challenging for existing aircraft wiring diagnostics. Under a three year contract let by the Federal Aviation Administration, Interagency Agreement DTFA-03-00X90019, this technology was further developed for application on aging commercial aircraft wiring systems. This report describes results of the FAA program with discussion of previous work conducted under U.S. Department of Defense funding.

  12. Airline Fleet Maintenance: Trade-off Analysis of Alternate Aircraft Maintenance Approaches

    E-Print Network [OSTI]

    -based. The preventative alternative involves the transmission of maintenance data to maintenance personnel whenAirline Fleet Maintenance: Trade-off Analysis of Alternate Aircraft Maintenance Approaches Mike Dupuy, Dan Wesely, Cody Jenkins Abstract ­ Airline maintenance is a significant contributor

  13. De Bilt, 2012 | Trainee report Case study on the effect of aircraft induced

    E-Print Network [OSTI]

    Haak, Hein

    a warming effect on the total earth-atmosphere system (reference at TOA), because trapping of upwelling long wave solar irradiance at the land surface Kasper O. Gerritsen #12;#12;Case study on the effect of aircraft induced cloudiness on the short wave solar irradiance at the land surface Version 1.0 Date June

  14. Aircraft Observations of Sub-cloud Aerosol and Convective Cloud Physical Properties

    E-Print Network [OSTI]

    Axisa, Duncan

    2011-02-22T23:59:59.000Z

    This research focuses on aircraft observational studies of aerosol-cloud interactions in cumulus clouds. The data were collected in the summer of 2004, the spring of 2007 and the mid-winter and spring of 2008 in Texas, central Saudi Arabia...

  15. Maneuverability and Envelope Protection in the Prevention of Aircraft Loss of Control

    E-Print Network [OSTI]

    Kwatny, Harry G.

    in and use of automatic protection systems (7; 8; 9). We consider the control issues associatedManeuverability and Envelope Protection in the Prevention of Aircraft Loss of Control Robert C, PA 19104, USA e-mail: rca28@drexel.edu, hkwatny@coe.drexel.edu Abstract--Loss-of-Control (LOC

  16. H Filtering with Inequality Constraints for Aircraft Turbofan Engine Health Estimation

    E-Print Network [OSTI]

    Simon, Dan

    , this paper shows how the inequality-constrained H filtering problem can be reduced to a standard quadratic programming problem; third, this paper shows how inequality-constrained H filtering can be applied inequality-constrained H filtering to estimate aircraft engine component efficiencies and flow capacities

  17. Distributed Formation Control of Multiple Aircraft Using Constraint Yunfei Zou, Prabhakar R. Pagilla

    E-Print Network [OSTI]

    Pagilla, Prabhakar R.

    conducted to verify the proposed approach. I. INTRODUCTION The problem of autonomous formation flight geometries leads to many advantages and applications. For example, energy saving from vortex forces and fuel deployment of troops and vehicles. Moreover, many aircraft involved in a mission can be better managed

  18. Transport of expiratory droplets in an aircraft cabin Jitendra K. Guptaa

    E-Print Network [OSTI]

    Chen, Qingyan "Yan"

    disease such as influenza or Tuberculosis may be the carriers of contagious agents. Indoor environments such as the airliner cabins may be susceptible to infection from such airborne contagious agents. The present of the droplets exhaled by an index passenger in an aircraft cabin. These droplets may contain active contagious

  19. Cooperative Target Localization with a Communication-Aware Unmanned Aircraft System

    E-Print Network [OSTI]

    Frew, Eric W.

    Cooperative Target Localization with a Communication-Aware Unmanned Aircraft System Maciej Stachura. Preliminary flight results are presented along with simulations to show the utility of the algorithms applied will be able to communicate with each other. This will be required if they are to work together to accomplish

  20. Asian emissions of CO and NOx: Constraints from aircraft and Chinese station data

    E-Print Network [OSTI]

    Palmer, Paul

    Asian emissions of CO and NOx: Constraints from aircraft and Chinese station data Yuxuan X. Wang to constrain estimates of Asian emissions of CO and NOx. A priori emissions are based on a detailed bottom emissions of CO and NOx, respectively, distributed heterogeneously, with the largest adjustments required

  1. Self-referenced continuous-variable quantum key distribution

    E-Print Network [OSTI]

    Soh, Daniel B S; Coles, Patrick J; Lütkenhaus, Norbert; Camacho, Ryan M; Urayama, Junji; Sarovar, Mohan

    2015-01-01T23:59:59.000Z

    We introduce a new continuous-variable quantum key distribution (CV-QKD) protocol, self-referenced CV-QKD, that eliminates the need for transmission of a high-power local oscillator between the communicating parties. In this protocol, each signal pulse is accompanied by a reference pulse (or a pair of twin reference pulses), used to align Alice's and Bob's measurement bases. We present a proof-of-principle, fiber-based experimental demonstration of the protocol and quantify the expected secret key rates by expressing them in terms of experimental parameters. Our analysis of the secret key rate fully takes into account the inherent uncertainty associated with the quantum nature of the reference pulse(s) and quantifies the limit at which the theoretical key rate approaches that of the respective conventional protocol that requires local oscillator transmission. The self-referenced protocol greatly simplifies the hardware required for CV-QKD, especially for potential integrated photonics implementations of trans...

  2. A Continued Fraction Resummation Form of Bath Relaxation Effect in the Spin-Boson Model

    E-Print Network [OSTI]

    Zhihao Gong; Zhoufei Tang; Shaul Mukamel; Jianshu Cao; Jianlan Wu

    2015-02-10T23:59:59.000Z

    In the spin-boson model, a continued fraction form is proposed to systematically resum high-order quantum kinetic expansion (QKE) rate kernels, accounting for the bath relaxation effect beyond the second-order perturbation. In particular, the analytical expression of the sixth-order QKE rate kernel is derived for resummation. With higher-order correction terms systematically extracted from higher-order rate kernels, the resummed quantum kinetic expansion (RQKE) approach in the continued fraction form extends the Pade approximation and can fully recover the exact quantum dynamics as the expansion order increases.

  3. A Continued Fraction Resummation Form of Bath Relaxation Effect in the Spin-Boson Model

    E-Print Network [OSTI]

    Gong, Zhihao; Mukamel, Shaul; Cao, Jianshu; Wu, Jianlan

    2015-01-01T23:59:59.000Z

    In the spin-boson model, a continued fraction form is proposed to systematically resum high-order quantum kinetic expansion (QKE) rate kernels, accounting for the bath relaxation effect beyond the second-order perturbation. In particular, the analytical expression of the sixth-order QKE rate kernel is derived for resummation. With higher-order correction terms systematically extracted from higher-order rate kernels, the resummed quantum kinetic expansion (RQKE) approach in the continued fraction form extends the Pade approximation and can fully recover the exact quantum dynamics as the expansion order increases.

  4. In-situ continuous water monitoring system

    DOE Patents [OSTI]

    Thompson, C.V.; Wise, M.B.

    1998-03-31T23:59:59.000Z

    An in-situ continuous liquid monitoring system for continuously analyzing volatile components contained in a water source comprises: a carrier gas supply, an extraction container and a mass spectrometer. The carrier gas supply continuously supplies the carrier gas to the extraction container and is mixed with a water sample that is continuously drawn into the extraction container by the flow of carrier gas into the liquid directing device. The carrier gas continuously extracts the volatile components out of the water sample. The water sample is returned to the water source after the volatile components are extracted from it. The extracted volatile components and the carrier gas are delivered continuously to the mass spectrometer and the volatile components are continuously analyzed by the mass spectrometer. 2 figs.

  5. In-situ continuous water analyzing module

    DOE Patents [OSTI]

    Thompson, Cyril V. (Knoxville, TN); Wise, Marcus B. (Kingston, TN)

    1998-01-01T23:59:59.000Z

    An in-situ continuous liquid analyzing system for continuously analyzing volatile components contained in a water source comprises: a carrier gas supply, an extraction container and a mass spectrometer. The carrier gas supply continuously supplies the carrier gas to the extraction container and is mixed with a water sample that is continuously drawn into the extraction container. The carrier gas continuously extracts the volatile components out of the water sample. The water sample is returned to the water source after the volatile components are extracted from it. The extracted volatile components and the carrier gas are delivered continuously to the mass spectometer and the volatile components are continuously analyzed by the mass spectrometer.

  6. In-situ continuous water monitoring system

    DOE Patents [OSTI]

    Thompson, Cyril V. (Knoxville, TN); Wise, Marcus B. (Kingston, TN)

    1998-01-01T23:59:59.000Z

    An in-situ continuous liquid monitoring system for continuously analyzing volatile components contained in a water source comprises: a carrier gas supply, an extraction container and a mass spectrometer. The carrier gas supply continuously supplies the carrier gas to the extraction container and is mixed with a water sample that is continuously drawn into the extraction container by the flow of carrier gas into the liquid directing device. The carrier gas continuously extracts the volatile components out of the water sample. The water sample is returned to the water source after the volatile components are extracted from it. The extracted volatile components and the carrier gas are delivered continuously to the mass spectrometer and the volatile components are continuously analyzed by the mass spectrometer.

  7. Continuous profiling of magnetotelluric fields

    SciTech Connect (OSTI)

    Verdin, C.T.

    1991-05-01T23:59:59.000Z

    The magnetotelluric (MT) method of mapping ground electrical conductivity is traditionally based on measurement of the surface impedance at widely spaced stations to infer models of the subsurface through a suitable pseudo 1-D inverse or with linearized least-squares inversion for 2- or 3-D geoelectric media. It is well known that small near-surface inhomogeneities can produce spatial discontinuities in the measured electric fields over a wide frequency range and may consequently bias the impedance on a very local scale. Inadequate station spacing effectively aliases the electric field measurements and results in distortions that cannot be removed in subsequent processing or modelling. In order to fully exploit the benefits of magnetotellurics in complex geological environments, closely spaced measurements must be used routinely. This thesis entertains an analysis of MT data taken along continuous profiles and is a first step that will allow more encompassing 2-D sampling techniques to become viable in the years to come. The developments presented here are to a large extent motivated by the physical insight gained from low-contrast solutions to the forward MT problem. These solutions describe the relationship between a perturbation in the electrical conductivity of the subsurface and the ensuing perturbation of the MT response as the output of a linear system. Albeit strictly accurate in a limited subset of practical exploration problems, the linearized solutions allow one to pursue a model independent study of the response characteristics of MT data. In fact, these solutions yield simple expressions for 1-,2-, and 3-D resistivity models which are here examined in progressive sequence.

  8. Conceptual design for a laminar-flying-wing aircraft

    E-Print Network [OSTI]

    Saeed, Tariq Issam

    2012-06-12T23:59:59.000Z

    to surface roughness (from Torenbeek (1976)). . . 57 3.8 45? swept eight-bladed propeller map at M? = 0.70 (from Rohrbach et al. (1982)). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 3.9 Compressor map scaling parameters... , and the compressor efficiency by the red contours. . . . 172 6.19 Net thrust, HPC exit temperature and burner exit temperature variation with engine mass flow rate at TO conditions for a two-engine turbofan designed for TOC...

  9. Development program to certify composite doubler repair technique for commercial aircraft

    SciTech Connect (OSTI)

    Roach, D.P.

    1997-07-01T23:59:59.000Z

    Commercial airframes exceeding 20 service years often develop crack and corrosion flaws. Bonded composite doublers offer a cost effective method to safely extend aircraft lives. The Federal Aircraft Authority (FAA) has completed a project to introduce composite doubler repair technology to the commercial aircraft industry. Instead of riveting steel or aluminum plates for repair, a single composite doubler may be bonded to the damaged structure. Adhesive bonding eliminates stress concentrations caused by fastener holes. Composites are readily formed into complex shapes for repairing irregular components. Also, composite doublers can be tailored to meet specific anisotropy needs, eliminating structural stiffening in directions other than those required. Other advantages include corrosion resistance, a high strength-to-weight ratio, and potential time savings in installation. One phase of this study developed general methodologies and test programs to ensure proper performance of the technique. A second phase focused on reinforcement of an L-1011 door frame, and encompassed all lifetime tasks such as design, analysis, installation, and nondestructive inspection. This paper overviews the project and details the activities conducted to gain FAA approval for composite doubler use. Structural tests evaluated the damage tolerance and fatigue performance of composite doublers while finite element models were generated to study doubler design issues. Nondestructive inspection procedures were developed and validated using full-scale test articles. Installation dry-runs demonstrated the viability of applying composite doublers in hangar environments. The project`s documentation package was used to support installation of a Boron-Epoxy composite repair on a Delta Air Lines L-1011 aircraft. A second product of the results is a Lockheed Service Bulletin which allows the door corner composite doubler to be installed on all L-1011 aircraft. 9 refs., 10 figs., 2 tabs.

  10. Full-Scale Structural and NDI Validation Tests of Bonded Composite Doublers for Commercial Aircraft Applications

    SciTech Connect (OSTI)

    Roach, D.; Walkington, P.

    1999-02-01T23:59:59.000Z

    Composite doublers, or repair patches, provide an innovative repair technique which can enhance the way aircraft are maintained. Instead of riveting multiple steel or aluminum plates to facilitate an aircraft repair, it is possible to bond a single Boron-Epoxy composite doubler to the damaged structure. Most of the concerns surrounding composite doubler technology pertain to long-term survivability, especially in the presence of non-optimum installations, and the validation of appropriate inspection procedures. This report focuses on a series of full-scale structural and nondestructive inspection (NDI) tests that were conducted to investigate the performance of Boron-Epoxy composite doublers. Full-scale tests were conducted on fuselage panels cut from retired aircraft. These full-scale tests studied stress reductions, crack mitigation, and load transfer capabilities of composite doublers using simulated flight conditions of cabin pressure and axial stress. Also, structures which modeled key aspects of aircraft structure repairs were subjected to extreme tension, shear and bending loads to examine the composite laminate's resistance to disbond and delamination flaws. Several of the structures were loaded to failure in order to determine doubler design margins. Nondestructive inspections were conducted throughout the test series in order to validate appropriate techniques on actual aircraft structure. The test results showed that a properly designed and installed composite doubler is able to enhance fatigue life, transfer load away from damaged structure, and avoid the introduction of new stress risers (i.e. eliminate global reduction in the fatigue life of the structure). Comparisons with test data obtained prior to the doubler installation revealed that stresses in the parent material can be reduced 30%--60% through the use of the composite doubler. Tests to failure demonstrated that the bondline is able to transfer plastic strains into the doubler and that the parent aluminum skin must experience significant yield strains before any damage to the doubler will occur.

  11. Continuous Dynamic Constrained Optimisation - The Challenges

    E-Print Network [OSTI]

    2011-10-25T23:59:59.000Z

    help in comparing new experimental data with existing results. Finally, because .... base mutation rates, hyper-mutation rates, random-immigrant rates and crossover ...... Southern California, Los Angeles, CA 90089, USA., Tech. Rep., 2002.

  12. 2010FirmRateAdj

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

    2015 Firm Power Rates & Rate Schedules The Pick-Sloan Missouri Basin Program--Eastern Division: Firm Electric Service Pick Sloan Missouri River -Eastern Division Rates Effective...

  13. <RatesMiscInfo>

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

    Rates & Repayment Services Power Reporting MISCELLANEOUS REPORTING Power Supply Report October 2014 (59kb pdf) September 2014 (58kb pdf) August 2014 (47kb pdf) July 2014 (57kb pdf)...

  14. Effective Rate Period

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

    Regulation and Frequency Response DollarsKW-month 4.56 CV-RFS4 Spinning Reserve The formula rate for spinning reserve service is the price consistent with the California...

  15. Effective Rate Period

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

    and Frequency Response DollarsKW-month 3.98 4.17 CV-RFS4 Spinning Reserve The formula rate for spinning reserve service is the price consistent with the California...

  16. On Thermonuclear Reaction Rates

    E-Print Network [OSTI]

    H. J. Haubold; A. M. Mathai

    1996-12-02T23:59:59.000Z

    Nuclear reactions govern major aspects of the chemical evolution od galaxies and stars. Analytic study of the reaction rates and reaction probability integrals is attempted here. Exact expressions for the reaction rates and reaction probability integrals for nuclear reactions in the case of nonresonant, modified nonresonant, screened nonresonant and resonant cases are given. These are expressed in terms of H-functions, G-functions and in computable series forms. Computational aspects are also discussed.

  17. Multi-stage microbial system for continuous hydrogen production

    DOE Patents [OSTI]

    Kosourov, Sergey; Ghirardi, Maria L.; Seibert, Michael

    2010-06-08T23:59:59.000Z

    A method of using sequential chemostat culture vessels to provide continuous H.sub.2 production, in which photosynthetic O.sub.2 evolution and H.sub.2 photoproduction are separated physically into two separate bioreactors, comprising: a) growing a microorganism culture able to continuously generate H.sub.2 by photosynthetically producing cells at about the early-to-late log state in a first photobioreactor operating as a sulfur chemostat under aerobic and/or conditions; b) continuously feeding cells from the first photobioreactor to a second photobioreactor operating under anaerobic conditions and sulfur deprivation conditions resulting from constant uptake of sulfate in the first bioreactor and a low rate of culture flow between the first and second bioreactors, for induction of hydrogenase and H.sub.2 photoproduction to allow for continuous cultivation of the microorganism's cells in the first photobioreactor and constant H.sub.2 production in the second photobioreactor, and c) H.sub.2 gas from the second photobioreactor.

  18. EM Occupational Injury and Illness Rates Continued to Decline in Fiscal Year 2011

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – The EM Office of Safety and Security Program conducts analysis of EM-wide safety performance on a quarterly basis to provide senior management a tool to compare and evaluate performance and identify emergent trends and make performance comparisons between sites and contractors of varying size and risk.

  19. Organic loading rates affect composition of soil-derived bacterial communities during continuous, fermentative

    E-Print Network [OSTI]

    Energy Laboratory, Golden, CO, USA. 2 Present address: Center for Environmental Biotechnology, Biodesign, University Park, PA 16802, USA b Department of Civil and Environmental Engineering, The Pennsylvania State University, University Park, PA 16802, USA a r t i c l e i n f o Article history: Received 4 July 2008

  20. Impact of Continuous Commissioning® on the Energy Star® Rating of Hospitals and Office Buildings 

    E-Print Network [OSTI]

    Kulkarni, Aditya Arun

    2012-02-14T23:59:59.000Z

    by its initial ESR, while its location has no impact on improvement. The improvement in ESR is observed to be almost linearly proportional to the percentage of energy saved. For 10% - 20% reductions in energy use typical of the CC® process, the ESR...

  1. How do I Build Apps with Utility Rate Data (that is continuously updating)?

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDIT REPORTEnergyFarms AHefei SungrowHelukabelHoniton Energy Beijing Ltd|

  2. How do I Build Apps with Utility Rate Data (that is continuously updating)?

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup | Open EnergyInformationHorizon Fuel Cell TechnologiesHouston||

  3. CLOSED MEANS CONTINUOUS IFF POLYHEDRAL: A CONVERSE ...

    E-Print Network [OSTI]

    2011-12-07T23:59:59.000Z

    2000 Mathematics Subject Classification. Primary 52A20; Secondary 52A41, 52B99. Key words and phrases. continuity of convex functions, closed convex ...

  4. Parallel Interval Continuous Global Optimization Algorithms

    E-Print Network [OSTI]

    abdeljalil benyoub

    2002-07-19T23:59:59.000Z

    Jul 19, 2002 ... Abstract: We theorically study, on a distributed memory architecture, the parallelization of Hansen's algorithm for the continuous global ...

  5. Optimization Online - Enter Your Password to Continue

    E-Print Network [OSTI]

    Update Entry. On the Coupled Continuous Knapsack Problems: Projection Onto the Volume Constrained Gibbs N-Simplex. Enter the Article Password:.

  6. Hanford year 2000 Business Continuity Plan

    SciTech Connect (OSTI)

    ROGGENKAMP, S.L.

    1999-11-01T23:59:59.000Z

    The goal of Department of Energy Richland Operations (DOE-RL) Year 2000 (Y2K) effort is to ensure that the Hanford site successfully continues its mission as we approach and enter the 21th century. The Y2K Business Continuity Planning process provides a structured approach to identify Y2K risks to the site and to mitigate these risks through Y2K Contingency Planning, ''Zero-Day'' Transition Planning and Emergency Preparedness. This document defines the responsibilities, processes and plans for Hanford's Y2K Business Continuity. It identifies proposed business continuity drills, tentative schedule and milestones.

  7. Microsoft Word - Environmental Document for Continued Operation...

    National Nuclear Security Administration (NNSA)

    John Belluardo August 11, 2011 (925) 422-2567 DETERMINATION ISSUED REGARDING ENVIRONMENTAL DOCUMENT FOR CONTINUED OPERATION OF LAWRENCE LIVERMORE NATIONAL LABORATORY:...

  8. Stationary distributions of continuous time Markov chains

    E-Print Network [OSTI]

    2012-04-13T23:59:59.000Z

    Apr 13, 2012 ... stationary distribution as the limiting fraction of time spent in states. 1 Stationary measures in continuous time. The following theorem is an ...

  9. Automated Continuous Commissioning of Commercial Buildings

    E-Print Network [OSTI]

    Bailey, Trevor

    2013-01-01T23:59:59.000Z

    Conference on Building Commissioning. San Francisco, CA. 17.Commercial Buildings Commissioning, LBNL- 56637, Nov. 2004.Automated Continuous Commissioning Tool GUI Screenshots from

  10. Semi-continuous network flow problems

    E-Print Network [OSTI]

    2012-04-26T23:59:59.000Z

    Apr 26, 2012 ... Semi-continuous variables are also common when modeling petrochemical processes as described in [8] and [9]. Furthermore, as [9] and [13] ...

  11. Theoretical Ecology: Continued growth and success

    E-Print Network [OSTI]

    Hastings, Alan

    2010-01-01T23:59:59.000Z

    EDITORIAL Theoretical Ecology: Continued growth and successof areas in theoretical ecology. Among the highlights areyear represent theoretical ecology from around the world: 20

  12. Sandia Energy - Continuous Reliability Enhancement for Wind ...

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

    Enhancement for Wind (CREW): Project Update Home Renewable Energy Energy News Wind Energy News & Events Systems Analysis Continuous Reliability Enhancement for Wind (CREW):...

  13. ONE-PARAMETER CONTINUOUS FIELDS OF KIRCHBERG ...

    E-Print Network [OSTI]

    2008-09-05T23:59:59.000Z

    One-parameter separable unital continuous fields of Kirchberg algebras (nuclear purely infinite simple C*-algebras) with torsion free Ki-groups and trivial ...

  14. Collective Mind: Continuous, Automatic Learning to

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    models ! Missing sensor suites ! Low equipment-utilization rates ! etc. But Maintenance Crews ! Have

  15. Study of particulate matter formation and evolution in near-field aircraft plumes using a one-dimensional microphysical model

    E-Print Network [OSTI]

    Zhang, Jianye, S.M. Massachusetts Institute of Technology

    2007-01-01T23:59:59.000Z

    Environmental concerns have led to a growing effort to investigate and characterize the particulate matter (PM) emissions from aircraft engines. This thesis presents a one-dimensional microphysics and chemical kinetics ...

  16. A Multi-Modal Unscented Kalman Filter for Inference of Aircraft Position and Taxi Mode from Surface Surveillance Data

    E-Print Network [OSTI]

    Balakrishnan, Hamsa

    We describe a multi-modal unscented Kalman lter developed for estimation of aircraft position, velocity and heading from noisy surface surveillance data. The raw data is composed of tracks generated by the Airport Surface ...

  17. Method for the assessment of airborne off-target pesticide spray concentrations due to aircraft wing-tip vortex

    E-Print Network [OSTI]

    Oliva, Sergio Eduardo

    2003-01-01T23:59:59.000Z

    The purpose of this thesis is to develop a method for assessing airborne concentrations caused by off-target pesticide drift. Concentrations are bounded by the worst credible circumstances within a normal aircraft pesticide spraying. It is assumed...

  18. Aircraft-protection radar for use with atmospheric lidars Thomas J. Duck, Bernard Firanski, Frank D. Lind, and Dwight Sipler

    E-Print Network [OSTI]

    Duck, Thomas J.

    . Lind, and Dwight Sipler A modified X-band radar system designed to detect aircraft during atmospheric, Dalhousie Univer- sity, Halifax, Nova Scotia, Canada B3H 3J5. F. D. Lind and D. Sipler are with Haystack

  19. Lease classification of aircraft leasing : a case study of cross-border leases between Korean Air and its subsidiary

    E-Print Network [OSTI]

    Park, Eun Ho, M.B.A. Massachusetts Institute of Technology

    2007-01-01T23:59:59.000Z

    Aircraft leasing represents a significant portion of the financial statements of airline firms. Accounting treatment of lease transactions is becoming more complicated as firms attempt to achieve off-balance-sheet outcomes ...

  20. Online measurements of the emissions of intermediate-volatility and semi-volatile organic compounds from aircraft

    E-Print Network [OSTI]

    Herndon, S. C.

    A detailed understanding of the climate and air quality impacts of aviation requires measurements of the emissions of intermediate-volatility and semi-volatile organic compounds (I/SVOCs) from aircraft. Currently both the ...

  1. The Hadron Hose: Continuous Toroidal Focusing for Conventional Neutrino Beams

    E-Print Network [OSTI]

    J. Hylen; D. Bogert; R. Ducar; V. Garkusha; J. Hall; C. Jensen; S. E. Kopp; M. Kostin; A. Lyukov; A. Marchionni; M. May; M. D. Messier; R. Milburn; F. Novoskoltsev; M. Proga; D. Pushka; W. Smart; J. Walton; V. Zarucheisky; R. M. Zwaska

    2002-10-21T23:59:59.000Z

    We have developed a new focusing system for conventional neutrino beams. The ``Hadron Hose'' is a wire located in the meson decay volume, downstream of the target and focusing horns. The wire is pulsed with high current to provide a toroidal magnetic field which continuously focuses mesons. The hose increases the neutrino event rate and reduces differences between near-field and far-field neutrino spectra for oscillation experiments. We have studied this device as part of the development of the Neutrinos at the Main Injector (NuMI) project, but it might also be of use for other conventional neutrino beams.

  2. ARM - PI Product - Continuous Forcing Data, Darwin, Australia

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP : XDCnarrowbandheat fluxChinaNewsRateProductsContinuous Forcing Data,

  3. Continuous Cooling Transformation (CCT) Assistant Professor

    E-Print Network [OSTI]

    Cambridge, University of

    Continuous Cooling Transformation (CCT) Diagrams R. Manna Assistant Professor Centre of Advanced.ac.uk #12;Continuous cooling transformation (CCT) diagram There are two types of CCT diagrams I) Plot and transformation finish temperature against transformation time on each cooling curve II) Plot of (for each type

  4. CONTINUITY IN SOFTWARE SYSTEMS Dick Hamlet

    E-Print Network [OSTI]

    Hamlet, Richard

    the role of continuity in engineering, particu- larly in testing and certifying artifacts, then considers testing. It is shown how `continuity' can be established in practice, and the consequences for testing by inserting a wooden han- dle into a tubular socket in a metal blade. The resulting tool is very versatile

  5. Energy Harvesting Communications with Continuous Energy Arrivals

    E-Print Network [OSTI]

    Yener, Aylin

    Energy Harvesting Communications with Continuous Energy Arrivals Burak Varan Kaya Tutuncuoglu Aylin--This work considers an energy harvesting transmit- ter that gathers a continuous flow of energy from intermittent sources, thus relaxing the modeling assumption of discrete amounts of harvested energy present

  6. A Transmission Control Framework Continuous Media

    E-Print Network [OSTI]

    Whitton, Mary C.

    Rights Reserved #12;ABSTRACT A Transmission Control Framework for Continuous Media (Under the directionA Transmission Control Framework for Continuous Media by Terry Michael Talley A dissertation by integrating real-time two-way audio and video with the computer system. Unfortunately, the quality of video

  7. CALENDAR 2009-2010 Continuing Education

    E-Print Network [OSTI]

    Barthelat, Francois

    . Legal deposit 2009, National Library of Canada and Bibliothèque nationale du Québec ISSN 1718UNIVERSITY CALENDAR 2009-2010 Continuing Education #12;Moving into the role of Dean of Continuing of this Calendar. McGill enjoys a remarkable local, national and international reputation as a centre of excellence

  8. LBL CONTINUOUS BIOMASS LIQUEFACTION PROCESS ENGINEERING UNIT (PEU)

    E-Print Network [OSTI]

    Figueroa, Carlos

    2012-01-01T23:59:59.000Z

    0092 UC-61 ORNIA LBL CONTINUOUS BIOMASS LIQUEFACTION PROCESSLBL~l0092 LBL CONTINUOUS BIOMASS LIQUEFACTION PROCESSof Energy LBL CONTINUOUS BIOMASS LIQUEFACTION PROCESS

  9. A miniature powerplant for very small, very long range autonomous aircraft. Final report

    SciTech Connect (OSTI)

    Tad McGeer

    1999-09-29T23:59:59.000Z

    The authors have developed a new piston engine offering unprecedented efficiency for a new generation of miniature robotic aircraft. Following Phase 1 preliminary design in 1996--97, they have gone forward in Phase 2 to complete detail design, and are nearing completion of a first batch of ten engines. A small-engine dynamometer facility has been built in preparation for the test program. Provisions have been included for supercharging, which will allow operation at ceilings in the 10,000 m range. Component tests and detailed analysis indicate that the engine will achieve brake-specific fuel consumption well below 300 gm/kWh at power levels of several hundred watts. This level of performance opens the door to development of tabletop-sized aircraft having transpacific range and multi-day endurance, which will offer extraordinary new capabilities for meteorology, geomagnetic, and a variety of applications in environmental monitoring and military operations.

  10. Monolithic amorphous silicon modules on continuous polymer substrate

    SciTech Connect (OSTI)

    Grimmer, D.P. (Iowa Thin Film Technologies, Inc., Ames, IA (United States))

    1992-03-01T23:59:59.000Z

    This report examines manufacturing monolithic amorphous silicon modules on a continuous polymer substrate. Module production costs can be reduced by increasing module performance, expanding production, and improving and modifying production processes. Material costs can be reduced by developing processes that use a 1-mil polyimide substrate and multilayers of low-cost material for the front encapsulant. Research to speed up a-Si and ZnO deposition rates is needed to improve throughputs. To keep throughput rates compatible with depositions, multibeam fiber optic delivery systems for laser scribing can be used. However, mechanical scribing systems promise even higher throughputs. Tandem cells and production experience can increase device efficiency and stability. Two alternative manufacturing processes are described: (1) wet etching and sheet handling and (2) wet etching and roll-to-roll fabrication.

  11. Integrated Molecular Analysis Indicates Undetectable Change in DNA Damage in Mice after Continuous Irradiation at ~ 400-fold Natural Background Radiation

    E-Print Network [OSTI]

    Olipitz, Werner

    Background: In the event of a nuclear accident, people are exposed to elevated levels of continuous low dose-rate radiation. Nevertheless, most of the literature describes the biological effects of acute radiation.

  12. Sonic IR crack detection of aircraft turbine engine blades with multi-frequency ultrasound excitations

    SciTech Connect (OSTI)

    Zhang, Ding; Han, Xiaoyan [Department of Electrical and Computer Engineering, Wayne State University, Detroit, MI 48202 (United States); Newaz, Golam [Department of Mechanical Engineering, Wayne State University, Detroit, MI 48202 (United States)

    2014-02-18T23:59:59.000Z

    Effectively and accurately detecting cracks or defects in critical engine components, such as turbine engine blades, is very important for aircraft safety. Sonic Infrared (IR) Imaging is such a technology with great potential for these applications. This technology combines ultrasound excitation and IR imaging to identify cracks and flaws in targets. In general, failure of engine components, such as blades, begins with tiny cracks. Since the attenuation of the ultrasound wave propagation in turbine engine blades is small, the efficiency of crack detection in turbine engine blades can be quite high. The authors at Wayne State University have been developing the technology as a reliable tool for the future field use in aircraft engines and engine parts. One part of the development is to use finite element modeling to assist our understanding of effects of different parameters on crack heating while experimentally hard to achieve. The development has been focused with single frequency ultrasound excitation and some results have been presented in a previous conference. We are currently working on multi-frequency excitation models. The study will provide results and insights of the efficiency of different frequency excitation sources to foster the development of the technology for crack detection in aircraft engine components.

  13. Evaluation of scanners for C-scan imaging in nondestructive inspection of aircraft

    SciTech Connect (OSTI)

    Gieske, J.H.

    1994-04-01T23:59:59.000Z

    The goal of this project was to produce a document that contains information on the usability and performance of commercially available, fieldable, and portable scanner systems as they apply to aircraft NDI inspections. In particular, the scanners are used to generate images of eddy current, ultrasonic, or bond tester inspection data. The scanner designs include manual scanners, semiautomated scanners, and fully automated scanners. A brief description of the functionality of each scanner type, a sketch, and a fist of the companies that support the particular design are provided. Vendors of each scanner type provided hands-on demonstrations of their equipment on real aircraft samples in the FAA Aging Aircraft Nondestructive Inspection Validation Center (AANC) in Albuquerque, NM. From evaluations recorded during the demonstrations, a matrix of scanner features and factors and ranking of the capabilities and limitations of the design, portability, articulation, performance, usability, and computer hardware/software was constructed to provide a quick reference for comparing the different scanner types. Illustrations of C-scan images obtained during the demonstration are shown.

  14. Studying impact damage on carbon-fiber reinforced aircraft composite panels with sonicir

    SciTech Connect (OSTI)

    Han Xiaoyan; Zhang Ding; He Qi; Song Yuyang; Lubowicki, Anthony [Department of Electrical and Computer Engineering, Wayne State University, Detroit, MI 48202 (United States); Zhao Xinyue; Newaz, Golam. [Department of Mechanical Engineering, Wayne State University, Detroit, MI 48202 (United States); Favro, Lawrence D.; Thomas, Robert L. [Department of Physics and Astronomy, Wayne State University, Detroit, MI 48202 (United States)

    2011-06-23T23:59:59.000Z

    Composites are becoming more important materials in commercial aircraft structures such as the fuselage and wings with the new B787 Dreamliner from Boeing which has the target to utilize 50% by weight of composite materials. Carbon-fiber reinforced composites are the material of choice in aircraft structures. This is due to their light weight and high strength (high strength-to-weight ratio), high specific stiffness, tailorability of properties, design flexibility etc. Especially, by reducing the aircraft's body weight by using such lighter structures, the cost of fuel can be greatly reduced with the high jet fuel price for commercial airlines. However, these composites are prone to impact damage and the damage may occur without any observable sign on the surface, yet resulting in delaminations and disbonds that may occur well within the layers. We are studying the impact problem with carbon-fiber reinforced composite panels and developing SonicIR for this application as a fast and wide-area NDE technology. In this paper, we present our results in studying composite structures including carbon-fiber reinforced composite materials, and preliminary quantitative studies on delamination type defect depth identification in the panels.

  15. Business Continuity Project Project Summary: Develop Business Continuity Plans for all critical functional areas of

    E-Print Network [OSTI]

    and methods to "invoke" individual plans, · Identify critical materials, parts, equipment needed, · Identify resources for obtaining critical materials, parts, equipment, · Identify resources for critical servicesBusiness Continuity Project Project Summary: Develop Business Continuity Plans for all critical

  16. Multiple Alignment of Continuous Time Series Jennifer Listgarten + , Radford M. Neal + , Sam T. Roweis + and Andrew Emili #

    E-Print Network [OSTI]

    Roweis, Sam

    Multiple Alignment of Continuous Time Series Jennifer Listgarten + , Radford M. Neal + , Sam T of continuous­valued time series from a stochastic process often contain systematic variations in rate time series generated by a noisy, stochastic process, large sys­ tematic sources of variability

  17. Rotational rate sensor

    DOE Patents [OSTI]

    Hunter, Steven L. (Livermore, CA)

    2002-01-01T23:59:59.000Z

    A rate sensor for angular/rotational acceleration includes a housing defining a fluid cavity essentially completely filled with an electrolyte fluid. Within the housing, such as a toroid, ions in the fluid are swept during movement from an excitation electrode toward one of two output electrodes to provide a signal for directional rotation. One or more ground electrodes within the housing serve to neutralize ions, thus preventing any effect at the other output electrode.

  18. Previous Power Rates

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible forPortsmouth/Paducah ProjectPRE-AWARDenergyEnergy InnovationRecentPreviouspower-rates

  19. Previous Transmission Rates

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible forPortsmouth/Paducah ProjectPRE-AWARDenergyEnergytransmission-rates Sign In About |

  20. Managing the Business Continuity of Information Technology

    E-Print Network [OSTI]

    Kissell, Jeremy

    2008-12-19T23:59:59.000Z

    the Public's Business: Continuity Planning & NYS Government As the title describes, this work deals with continuity planning for the New York State government, and it goes through its evolution over a twenty year period of continuity planning until after... to be purchased anyway after a disaster. If the building where an organization’s digital data is destroyed, even after retrieving an off-site backup of that data, they would need the hardware to retrieve the data from the backup and to use it effectively in a...

  1. Both construction and operations continue to increase

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

    Both construction and operations continue to increase As mentioned earlier, Building 9731 was the first building completed at Y-12, having been completed in just a few weeks in...

  2. Method for the continuous production of hydrogen

    DOE Patents [OSTI]

    Getty, John Paul (Knoxville, TN); Orr, Mark T. (Kingsport, TN); Woodward, Jonathan (Kingston, TN)

    2002-01-01T23:59:59.000Z

    The present invention is a method for the continuous production of hydrogen. The present method comprises reacting a metal catalyst with a degassed aqueous organic acid solution within a reaction vessel under anaerobic conditions at a constant temperature of .ltoreq.80.degree. C. and at a pH ranging from about 4 to about 9. The reaction forms a metal oxide when the metal catalyst reacts with the water component of the organic acid solution while generating hydrogen, then the organic acid solution reduces the metal oxide thereby regenerating the metal catalyst and producing water, thus permitting the oxidation and reduction to reoccur in a continual reaction cycle. The present method also allows the continuous production of hydrogen to be sustained by feeding the reaction with a continuous supply of degassed aqueous organic acid solution.

  3. Alpha-environmental continuous air monitor inlet

    DOE Patents [OSTI]

    Rodgers, John C. (Santa Fe, NM)

    2003-01-01T23:59:59.000Z

    A wind deceleration and protective shroud that provides representative samples of ambient aerosols to an environmental continuous air monitor (ECAM) has a cylindrical enclosure mounted to an input on the continuous air monitor, the cylindrical enclosure having shrouded nozzles located radially about its periphery. Ambient air flows, often along with rainwater flows into the nozzles in a sampling flow generated by a pump in the continuous air monitor. The sampling flow of air creates a cyclonic flow in the enclosure that flows up through the cylindrical enclosure until the flow of air reaches the top of the cylindrical enclosure and then is directed downward to the continuous air monitor. A sloped platform located inside the cylindrical enclosure supports the nozzles and causes any moisture entering through the nozzle to drain out through the nozzles.

  4. QuarterlyCouncil Continued on page 2

    E-Print Network [OSTI]

    QuarterlyCouncil Continued on page 2 98 > In this issue Council Decisions > Updates on Council ­ or mishandled, in his opinion ­ important issues such as education funding. He's concerned about

  5. Geothermal Energy Growth Continues, Industry Survey Reports

    Broader source: Energy.gov [DOE]

    A survey released by the Geothermal Energy Association (GEA) shows continued growth in the number of new geothermal power projects under development in the United States, a 20% increase since January of this year.

  6. Evaluation of continuous glucose monitoring systems

    E-Print Network [OSTI]

    Li, Guang, M. Eng. Massachusetts Institute of Technology

    2008-01-01T23:59:59.000Z

    There has been much hype in the research and development of continuous glucose monitoring technologies, driven by the enormous and rapidly expanding glucose monitoring market and the large and growing base of diabetes ...

  7. Magnetically enhanced centrifugation for continuous biopharmaceutical processing

    E-Print Network [OSTI]

    Chen, Fei, Ph. D. Massachusetts Institute of Technology

    2009-01-01T23:59:59.000Z

    Effective separation and purification of biopharmaceutical products from the media in which they are produced continues to be a challenging task. Such processes usually involve multiple steps and the overall product loss ...

  8. Continuously-Variable Series-Elastic Actuator

    E-Print Network [OSTI]

    Mooney, Luke M.

    Actuator efficiency is an important factor in the design of powered leg prostheses, orthoses, exoskeletons, and legged robots. A continuously-variable series-elastic actuator (CV-SEA) is presented as an efficient actuator ...

  9. Back Cover Front Cover Office of Continuing

    E-Print Network [OSTI]

    Goodman, Robert M.

    Back Cover Front Cover Office of Continuing Professional Education 2012­2013 Professional Landscape of Golf Course Irrigation Systems (p. 13) · Basics of Turf Management (p. 21) · Turfgrass Establishment (p

  10. Automatic tuning of continuous-time filters 

    E-Print Network [OSTI]

    Sumesaglam, Taner

    2004-11-15T23:59:59.000Z

    Integrated high-Q continuous-time filters require adaptive tuning circuits that will correct the filter parameters such as center frequency and quality factor (Q). Three different automatic tuning techniques are introduced. In all of the proposed...

  11. Partnerships to continue moving toward zero emissions

    E-Print Network [OSTI]

    California at Davis, University of

    Partnerships to continue moving toward zero emissions Zero Emission transportation goals Zero Emission MAP makes available technical assistance to states and cities to support the growth of zero emission mobility markets. 1 Research shows

  12. Automatic tuning of continuous-time filters

    E-Print Network [OSTI]

    Sumesaglam, Taner

    2004-11-15T23:59:59.000Z

    Integrated high-Q continuous-time filters require adaptive tuning circuits that will correct the filter parameters such as center frequency and quality factor (Q). Three different automatic tuning techniques are introduced. In all of the proposed...

  13. Continuous Improvement Energy Projects Reduce Energy Consumption

    E-Print Network [OSTI]

    Niemeyer, E.

    2014-01-01T23:59:59.000Z

    Continuous Improvement Energy Projects Reduce Energy Consumption Eric Niemeyer, Operations Superintendent Drilling Specialties Company A division of Chevron Phillips Chemical Company LP ESL-IE-14-05-31 Proceedings of the Thrity..., LA. May 20-23, 2014 A presentation of the paper “Continuous Improvement Energy Projects Reduce Energy Consumption” by Bruce Murray and Allison Myers ESL-IE-14-05-31 Proceedings of the Thrity-Sixth Industrial Energy Technology Conference New Orleans...

  14. Current Power Rates

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution4 Department ofDepartmentPower-Rates Sign In About |

  15. Current Transmission Rates

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution4 Department ofDepartmentPower-Rates Sign

  16. [FIXED RATE GUARANTEED OBLIGATIONS]

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2, 2015Visiting Strong,Women @JoinEnergy ZEROFIXED RATE GUARANTEED

  17. Settlement PF Exchange Rates

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary Moniz9 SeptemberSetting the Stage for the Next SolarRate

  18. Applying technology strategy with enterprise architecting : a case study in transformation planning for integrating Unmanned Aircraft Systems into the National Airspace

    E-Print Network [OSTI]

    Richardson, Kristina L. (Kristina Lynn)

    2009-01-01T23:59:59.000Z

    The research presented in this thesis combines Enterprise Architecture and Technology Strategy for analyzing, evaluating, and recommending appropriate solutions for integrating Unmanned Aircraft Systems (UAS) into the ...

  19. Energy Management Through Innovative Rates

    E-Print Network [OSTI]

    Williams, M. L.

    1982-01-01T23:59:59.000Z

    of energy efficiency in the industrial sector and specific rate design alternatives for doing so....

  20. LATTICE SEGMENTATION AND SUPPORT VECTOR MACHINES FOR LARGE VOCABULARY CONTINUOUS SPEECH RECOGNITION

    E-Print Network [OSTI]

    Byrne, William

    LATTICE SEGMENTATION AND SUPPORT VECTOR MACHINES FOR LARGE VOCABULARY CONTINUOUS SPEECH RECOGNITION to transform a lattice into a sequence of confusions. · Lattice Error Rate preserved throughout the process. · Allows the use of simple yet powerful classifiers (e.g., SVMs) for ASR that otherwise would not have been

  1. Saving for the future self: Neural measures of future self-continuity predict temporal discounting

    E-Print Network [OSTI]

    Knutson, Brian

    Saving for the future self: Neural measures of future self-continuity predict temporal discounting not increased their rate of saving. In a phenomenon known as `temporal discounting', people value immediate and treat the future self differently from the present self, and so might fail to save for their future

  2. A pilot-scale continuous-jet hydrate reactor

    SciTech Connect (OSTI)

    Szymcek, Phillip [ORNL; McCallum, Scott [Oak Ridge Associated Universities (ORAU); Taboada Serrano, Patricia L [ORNL; Tsouris, Costas [ORNL

    2008-01-01T23:59:59.000Z

    A three-phase, pilot-scale continuous-jet hydrate reactor (CJHR) has been developed for the production of gas hydrates. The reactor receives water and a hydrate-forming species to produce the solid gas hydrate. The CJHR has been tested for the production of CO{sub 2} hydrate for the purpose of ocean carbon sequestration. Formation of CO{sub 2} hydrate was investigated using various reactor/injector designs in a 72-l high-pressure vessel. Designs of the CJHR varied from single-capillary to multiple-capillary injectors that dispersed (1) liquid CO{sub 2} into water or (2) water into liquid CO{sub 2}. The novel injector is designed to improve the dispersion of one reactant into the other and, thus, eliminate mass transfer barriers that negatively affect conversion. An additional goal was an increase in production rates of two orders of magnitude. The designed injectors were tested in both distilled and saline water. Hydrate production experiments were conducted at different CO{sub 2} and water flow rates and for pressures and temperatures equivalent to intermediate ocean depths (1100-1700 m). The pilot-scale reactor with the novel injection system successfully increased hydrate production rates and efficiency.

  3. Alternate fuels for general-aviation aircraft with spark-ignition engines. Final report

    SciTech Connect (OSTI)

    Ferrara, A.M.

    1988-06-01T23:59:59.000Z

    This report describes the results of a study into the behavior of several alternate fuels that are under consideration for use in general aviation aircraft engines. The study consisted of a literature search and engine tests using a dynamometer. The literature search identified material compatibility problems and possible solutions to these problems. For the engine tests, a number of gasoline/alcohol blends were prepared using both ethanol and methanol in varying concentrations and the vapor-lock behavior was identified. Neat alcohols and methyl-tertiary-butyl ether were also used in the engine, and special operational conditions and problems were identified.

  4. ARM - Field Campaign - Aircraft Integration and Flight Testing of 4STAR

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032)8Li (59AJ76)ARM2,govCampaignsAircraft Integration and Flight Testing

  5. DOD-DOE Aircraft Petroleum Use Reduction Workshop | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube| Department of Energy - Facilitator GuideDISCLAIMER:DOD-DOE Aircraft

  6. Apparatus for fabricating continuous lengths of superconductor

    DOE Patents [OSTI]

    Kroeger, Donald M. (Knoxville, TN); List, III, Frederick A. (Andersonville, TN)

    2002-01-01T23:59:59.000Z

    A process and apparatus for manufacturing a superconductor. The process is accomplished by depositing a superconductor precursor powder on a continuous length of a first substrate ribbon, overlaying a continuous length of a second substrate ribbon on said first substrate ribbon, and applying sufficient pressure to form a bound layered superconductor comprising a layer of said superconducting precursor powder between said first substrate ribbon and said second substrates ribbon. The layered superconductor is then heat treated to establish the superconducting phase of said superconductor precursor powder.

  7. Apparatus for fabricating continuous lengths of superconductor

    DOE Patents [OSTI]

    Kroeger, Donald M. (Knoxville, TN); List, III, Frederick A. (Andersonville, TN)

    2001-01-01T23:59:59.000Z

    A process and apparatus for manufacturing a superconductor. The process is accomplished by depositing a superconductor precursor powder on a continuous length of a first substrate ribbon, overlaying a continuous length of a second substrate ribbon on said first substrate ribbon, and applying sufficient pressure to form a bound layered superconductor comprising a layer of said superconducting precursor powder between said first substrate ribbon and said second substrates ribbon. The layered superconductor is then heat treated to establish the superconducting phase of said superconductor precursor powder.

  8. Continuous Energy Improvement in Motor Driven Systems

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: Theof"Wave theJuly 30, 2013 Sanyo: NoticeContinuing ProgressContinuous Energy

  9. National Utility Rate Database: Preprint

    SciTech Connect (OSTI)

    Ong, S.; McKeel, R.

    2012-08-01T23:59:59.000Z

    When modeling solar energy technologies and other distributed energy systems, using high-quality expansive electricity rates is essential. The National Renewable Energy Laboratory (NREL) developed a utility rate platform for entering, storing, updating, and accessing a large collection of utility rates from around the United States. This utility rate platform lives on the Open Energy Information (OpenEI) website, OpenEI.org, allowing the data to be programmatically accessed from a web browser, using an application programming interface (API). The semantic-based utility rate platform currently has record of 1,885 utility rates and covers over 85% of the electricity consumption in the United States.

  10. Adaptive Training for Large Vocabulary Continuous

    E-Print Network [OSTI]

    Hain, Thomas

    Adaptive Training for Large Vocabulary Continuous Speech Recognition Kai Yu Hughes Hall College for the degree of Doctor of Philosophy #12;ii Summary In recent years, there has been a trend towards training is to train hidden Markov models (HMMs) on the whole data set as if all data comes from a single acoustic

  11. Louisiana Tech University Continuing Education & Distance Learning

    E-Print Network [OSTI]

    Selmic, Sandra

    1 Louisiana Tech University Continuing Education & Distance Learning 720 West Railroad Avenue, PO training. ENERGY CONSERVATION - BASIC ELECTRICAL CONCEPTS - 8 Hours - $119 The purpose of this course is to acquaint you with the basic concepts of electricity and how to use those concepts to maximize efficiency

  12. Markovian feedback to control continuous variable entanglement

    E-Print Network [OSTI]

    Stefano Mancini

    2005-04-18T23:59:59.000Z

    We present a model to realize quantum feedback control of continuous variable entanglement. It consists of two interacting bosonic modes subject to amplitude damping and achieving entangled Gaussian steady state. The possibility to greatly improve the degree of entanglement by means of Markovian (direct) feedback is then shown.

  13. Interaction Sheaves on Continuous Hans Keiding

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Interaction Sheaves on Continuous Domains J. Abdou Hans Keiding Revised version March 2009 of game forms obtained in the finite case in Abdou and Keiding (2003). Keywords: Nash equilibrium, strong'H^opital 75647 Paris Cedex 13; email: abdou@univ-paris1.fr University of Copenhagen, Department of Economics

  14. Continuing Education presents Rembrandt and His Legacy

    E-Print Network [OSTI]

    Atkinson, Katie

    CRN 15168 Continuing Education presents Rembrandt and His Legacy With Dr Aimee Blackledge Rembrandt the career of Rembrandt van Rijn and the wider impact of his legacy. Over ten weeks, we will explore both the paintings and the controversies surrounding the attribution and interpretation of works by Rembrandt and his

  15. Continuous representation for shell models of turbulence

    E-Print Network [OSTI]

    Alexei A. Mailybaev

    2014-09-16T23:59:59.000Z

    In this work we construct and analyze continuous hydrodynamic models in one space dimension, which are induced by shell models of turbulence. After Fourier transformation, such continuous models split into an infinite number of uncoupled subsystems, which are all identical to the same shell model. The two shell models, which allow such a construction, are considered: the dyadic (Desnyansky--Novikov) model with the intershell ratio $\\lambda = 2^{3/2}$ and the Sabra model of turbulence with $\\lambda = \\sqrt{2+\\sqrt{5}} \\approx 2.058$. The continuous models allow understanding various properties of shell model solutions and provide their interpretation in physical space. We show that the asymptotic solutions of the dyadic model with Kolmogorov scaling correspond to the shocks (discontinuities) for the induced continuous solutions in physical space, and the finite-time blowup together with its viscous regularization follow the scenario similar to the Burgers equation. For the Sabra model, we provide the physical space representation for blowup solutions and intermittent turbulent dynamics.

  16. Japan's Triple Disaster The Continuing News Story

    E-Print Network [OSTI]

    Napp, Nils

    Japan's Triple Disaster The Continuing News Story Dennis Normile Japan News Bureau Chief November not pragmatic." -Fumihiko Imamura #12;18 News Of The Week Does Japan Need Nuclear Power? #12;19 News & Analysis "People lost trust in TEPCO and the energy policy itself." -Shunsuke Managi #12;20 News Of The Week Japan

  17. Analysis of the BATSE Continuous MER data

    E-Print Network [OSTI]

    P. Veres; I. Horvath; L. G. Balazs

    2005-10-11T23:59:59.000Z

    The CGRO/BATSE database includes many types of data such as the 16-channel continuous background or medium energy resolution burst data (CONT and MER data types). We have calculated some four hundred burst's medium energy resolution spectra and Principal Component Analysis has been applied. We found five components can describe GRBs' spectra.

  18. continued on page 2 Computer Systems Support

    E-Print Network [OSTI]

    Stanier, Charlie

    continued on page 2 Computer Systems Support College of Engineering University of Iowa Volume 13, and many hours of hands on test- ing, we will complete our $1.3M (list) networking upgrade over the Winter from up to ten self-contained switches where each physical, 48-port switch becomes a blade

  19. Continued on back UNIVERSITY OF OREGON

    E-Print Network [OSTI]

    Oregon, University of

    Continued on back UNIVERSITY OF OREGON MOBILE TECHNOLOGY ACCESS AND PAYMENT OPTION REQUEST Please complete this form to apply for access to mobile technology (e.g., cell phones, smart phones, etc device use. Information on the UO policies regarding access to mobile technology and payment options can

  20. Facult de Sant Publique Formation continue

    E-Print Network [OSTI]

    Nesterov, Yurii

    Faculté de Santé Publique Formation continue en management des institutions de soins Programme 2011, management stratégique (UCL, ULB) CIPS p.16 > Certificat interuniversitaire en management de la qualité dans) p.19 > Certificat interuniversitaire en management médical (ULB, UCL) CIMM p.19 > Certificat

  1. Continuous Casting Consortium Report to POSCO

    E-Print Network [OSTI]

    Thomas, Brian G.

    in Fig. 2, the gas fuel (such as propane C3H8) and oxygen leaving the torch combust into a high of the heat is transported away through radiation and advection with the combustion gas and the rest- 1 - Continuous Casting Consortium Report to POSCO Modeling Steel Slab Heat Transfer During

  2. Methodologies for Continuous Cellular Tower Data Analysis

    E-Print Network [OSTI]

    Clauset, Aaron

    Methodologies for Continuous Cellular Tower Data Analysis Nathan Eagle1,2 , John A. Quinn3 cellular tower data from 215 randomly sampled subjects in a major urban city. We demonstrate the potential by tower transitions. The tower groupings from these unsupervised clustering techniques are subsequently

  3. Summary of activities to remove the aircraft hydrant system (Panero site) at March Air Force Base, California

    SciTech Connect (OSTI)

    Hendrian, G.L.

    1993-06-01T23:59:59.000Z

    This document summarizes the activities to remove the underground storage tank farm (Panero Site, Operable Unit 3, Installation Restoration Program) used for aircraft refueling at March AFB. This summary report is organized into four sections: introduction--gives the scope, information summary, and composition of the report; planned work scope--states the scope of work as provided in the Performance Work Statement for Removal of Aircraft Fuel Hydrant System March Air Force Base, California; demolition results--records the accomplishments for each task defined in the Performance Work Statement; and recycling efforts--record the efforts to reduce generating unnecessary waste.

  4. Upper Great Plains Rates information

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

    Ancillary Services Rate Data (2.4mb pdf) Transmission and Ancillary Services 2011 Rate True-up Calculation (3.4mb pdf) Power Reporting Miscellaneous Information If you have any...

  5. Relationship between satellite-derived vegetation indices and aircraft-based CO2 measurements

    SciTech Connect (OSTI)

    Cihlar, J.; Caramori, P.H.; Schuepp, P.H.; Desjardins, R.L.; Macpherson, J.I. (Canada Centre for Remote Sensing, Ottawa (Canada) McGill Univ., Montreal (Canada) Agriculture Canada, Centre for Land and Biological Resources Research, Ottawa (Canada) National Research Council of Canada, Inst. for Aerospace Research, Ottawa (Canada))

    1992-11-01T23:59:59.000Z

    The objective of this study was to analyze the relationship between satellite-derived vegetation indices and CO2 uptake, as an initial step in exploring the possibility of using a satellite-derived vegetation index as a measure of net photosynthesis. The study area included the First International Satellite Land Surface Climatology Project (ISLSCP) Field Experiment (FIFE) site located on the Konza prairie and adjacent area as well as a transect between Manhattan and Salina. One third of the transect exhibited vegetation and terrain characteristics similar to those on the FIFE site, whereas cultivated land predominated in the remaining portion of the 75-km-long flight line. In June, July, August, and October 1987, several CO2 data sets were obtained using the National Research Council of Canada's Twin Otter research aircraft. The normalized difference vegetation index (NDVI) and the simple ratio (SR) were computed from NOAA AVHRR data acquired as part of FIFE. Aircraft and satellite data were processed to obtain spatially coincident and locally representative flux values. Results show a linear relationship between NDVI and CO2 uptake during a single day; however, a nonlinear relationship emerged when all data sets were combined. The data from FIFE and the regional transect were consistent for one date but differed for other periods. Overall, about 60 percent of total variability in CO2 flux was accounted for by the NDVI and 74 percent by the SR. 14 refs.

  6. Heat release by controlled continuous-time Markov jump processes

    E-Print Network [OSTI]

    Paolo Muratore-Ginanneschi; Carlos Mejía-Monasterio; Luca Peliti

    2012-12-17T23:59:59.000Z

    We derive the equations governing the protocols minimizing the heat released by a continuous-time Markov jump process on a one-dimensional countable state space during a transition between assigned initial and final probability distributions in a finite time horizon. In particular, we identify the hypotheses on the transition rates under which the optimal control strategy and the probability distribution of the Markov jump problem obey a system of differential equations of Hamilton-Bellman-Jacobi-type. As the state-space mesh tends to zero, these equations converge to those satisfied by the diffusion process minimizing the heat released in the Langevin formulation of the same problem. We also show that in full analogy with the continuum case, heat minimization is equivalent to entropy production minimization. Thus, our results may be interpreted as a refined version of the second law of thermodynamics.

  7. High-sensitivity, high-speed continuous imaging system

    DOE Patents [OSTI]

    Watson, Scott A; Bender, III, Howard A

    2014-11-18T23:59:59.000Z

    A continuous imaging system for recording low levels of light typically extending over small distances with high-frame rates and with a large number of frames is described. Photodiode pixels disposed in an array having a chosen geometry, each pixel having a dedicated amplifier, analog-to-digital convertor, and memory, provide parallel operation of the system. When combined with a plurality of scintillators responsive to a selected source of radiation, in a scintillator array, the light from each scintillator being directed to a single corresponding photodiode in close proximity or lens-coupled thereto, embodiments of the present imaging system may provide images of x-ray, gamma ray, proton, and neutron sources with high efficiency.

  8. 2007 Wholesale Power Rate Schedules : 2007 General Rate Schedule Provisions.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    2006-11-01T23:59:59.000Z

    This schedule is available for the contract purchase of Firm Power to be used within the Pacific Northwest (PNW). Priority Firm (PF) Power may be purchased by public bodies, cooperatives, and Federal agencies for resale to ultimate consumers, for direct consumption, and for Construction, Test and Start-Up, and Station Service. Rates in this schedule are in effect beginning October 1, 2006, and apply to purchases under requirements Firm Power sales contracts for a three-year period. The Slice Product is only available for public bodies and cooperatives who have signed Slice contracts for the FY 2002-2011 period. Utilities participating in the Residential Exchange Program (REP) under Section 5(c) of the Northwest Power Act may purchase Priority Firm Power pursuant to the Residential Exchange Program. Rates under contracts that contain charges that escalate based on BPA's Priority Firm Power rates shall be based on the three-year rates listed in this rate schedule in addition to applicable transmission charges. This rate schedule supersedes the PF-02 rate schedule, which went into effect October 1, 2001. Sales under the PF-07 rate schedule are subject to BPA's 2007 General Rate Schedule Provisions (2007 GRSPs). Products available under this rate schedule are defined in the 2007 GRSPs. For sales under this rate schedule, bills shall be rendered and payments due pursuant to BPA's 2007 GRSPs and billing process.

  9. A new airborne formaldehyde measurement technique was developed and deployed on board the DOE G1 aircraft during a four-week long 1998 summer ozone study in Phoenix,

    E-Print Network [OSTI]

    (HPLC). The aircraft instrument consists mainly of (1) a 28-turn glass coil scrubber, (2) a heated zone

  10. Direct Calculation of Ice Homogeneous Nucleation Rate for a Molecular Model of Water

    E-Print Network [OSTI]

    Haji-Akbari, Amir

    2015-01-01T23:59:59.000Z

    Ice formation is ubiquitous in nature, with important consequences in a variety of systems and environments, including biological cells [1], soil [2], aircraft [3], transportation infrastructure [4] and atmospheric clouds [5,6]. However, its intrinsic kinetics and microscopic mechanism are difficult to discern with current experiments. Molecular simulations of ice nucleation are also challenging, and direct rate calculations have only been performed for coarse-grained models of water [7-9]. For the more realistic molecular models, only indirect estimates have been obtained, e.g.~by assuming the validity of classical nucleation theory [10]. Here, we use a path sampling approach to perform the first direct rate calculation of homogeneous nucleation of ice in a molecular model of water. We use TIP4P/Ice [11], the most accurate among the existing molecular models for studying ice polymorphs. By using a novel topological order parameter for distinguishing different polymorphs, we are able to identify a freezing me...

  11. Policy Flash 2014-05 Continuing Appropriations Act, 2014 -- Implementa...

    Energy Savers [EERE]

    G, Consolidated and Further Continuing Appropriations Act, 2013, Pub. L. No. 113-6 Policy Flash 2014-05 Continuing Appropriations Act, 2014 -- Implementation of Division F,...

  12. Effects of Continuous Triiodothyronine Infusion on Citric Acid...

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

    Continuous Triiodothyronine Infusion on Citric Acid Cycle in the Normal Immature Swine Heart under Extracorporeal Effects of Continuous Triiodothyronine Infusion on Citric Acid...

  13. Virginia Tech Selected to Continue Development of Innovative...

    Office of Environmental Management (EM)

    Virginia Tech Selected to Continue Development of Innovative Building Automation System Virginia Tech Selected to Continue Development of Innovative Building Automation System...

  14. Solar Decathlon house continues to yield data | ornl.gov

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

    Solar Decathlon house continues to yield data ORNL, University of Tennessee to continue lessons learned in DOE solar energy competition Courtesy of: UT College of Architecture and...

  15. Dedicated to The Continued Education, Training and Demonstration...

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

    Dedicated to The Continued Education, Training and Demonstration of PEM Fuel Cell Powered Lift Trucks In Real-World Applications Dedicated to The Continued Education, Training and...

  16. DEVELOPMENT OF AN INTRA-FACILITY CONTINUING EDUCATION PLANNING TOOL

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    DEVELOPMENT OF AN INTRA-FACILITY CONTINUING EDUCATION PLANNING TOOL by Lori Anne Chovanak EDUCATION PLANNING TOOL............................................................................... 1..................................................................................... 8 Value of the Intra-facility Continuing Education Tool

  17. Fault Tolerant Evaluation of Continuous Selection Queries over Sensor Data

    E-Print Network [OSTI]

    Lazaridis, Iosif; Han, Qi; Mehrotra, Sharad; Venkatasubramanian, Nalini

    2009-01-01T23:59:59.000Z

    Evaluation of Continuous Selection Queries over Sensor Dataevaluation of continuous selection queries (CSQs) over sensor-sensor suffices and there is no Fault Tolerant Evaluation of

  18. Federal Energy Management Program Training Offers IACET Continuing Education Units

    Broader source: Energy.gov [DOE]

    Video explains how the Federal Energy Management Program offers International Association for Continuing Education and Training (IACET) continuing education units for eTraining core courses.

  19. Continuous Energy Improvement in Motor Driven Systems - A Guidebook...

    Energy Savers [EERE]

    Continuous Energy Improvement in Motor Driven Systems - A Guidebook for Industry Continuous Energy Improvement in Motor Driven Systems - A Guidebook for Industry This guidebook...

  20. ORISE: Agents of Opportunity for Terrorism Continuing Medical...

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

    the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. ORISE takes responsibility for the content, quality, and...