Sample records for aerial measuring system

  1. Aerial Measuring System

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

    1991-09-20T23:59:59.000Z

    To establish policy for the Department of Energy's (DOE) Aerial Measuring System (AMS) Program. This directive does not cancel another directive. Canceled by DOE O 153.1.

  2. Aerial Measuring System | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Consequence Management Aerial Measuring System Aerial Measuring System AMS Logo NNSA's Aerial Measuring System (AMS) provides specialized airborne radiation detection...

  3. Aerial Measuring System in Japan

    SciTech Connect (OSTI)

    Lyons, C., Colton, D. P.

    2012-05-01T23:59:59.000Z

    The U.S. Department of Energy National Nuclear Security Agency’s Aerial Measuring System deployed personnel and equipment to partner with the U.S. Air Force in Japan to conduct multiple aerial radiological surveys. These were the first and most comprehensive sources of actionable information for U.S. interests in Japan and provided early confirmation to the government of Japan as to the extent of the release from the Fukushima Daiichi Nuclear Power Generation Station. Many challenges were overcome quickly during the first 48 hours; including installation and operation of Aerial Measuring System equipment on multiple U.S. Air Force Japan aircraft, flying over difficult terrain, and flying with talented pilots who were unfamiliar with the Aerial Measuring System flight patterns. These all combined to make for a dynamic and non-textbook situation. In addition, the data challenges of the multiple and on-going releases, and integration with the Japanese government to provide valid aerial radiological survey products that both military and civilian customers could use to make informed decisions, was extremely complicated. The Aerial Measuring System Fukushima response provided insight in addressing these challenges and gave way to an opportunity for the expansion of the Aerial Measuring System’s mission beyond the borders of the US.

  4. Region Three Aerial Measurement System Flight Planning Tool - 12006

    SciTech Connect (OSTI)

    Messick, Chuck; Pham, Minh; Smith, Ron; Isiminger, Dave [Savannah River Nuclear Solutions, Aiken, South Carolina 29808 (United States)

    2012-07-01T23:59:59.000Z

    The Region 3 Aerial Measurement System Flight Planning Tool is used by the National Nuclear Security Agency (NNSA), United States Department of Energy, Radiological Assistance Program, Region 3, to respond to emergency radiological situations. The tool automates the flight planning package process while decreasing Aerial Measuring System response times and decreases the potential for human error. Deployment of the Region Three Aerial Measurement System Flight Planning Tool has resulted in an immediate improvement to the flight planning process in that time required for mission planning has been reduced from 1.5 hours to 15 minutes. Anecdotally, the RAP team reports that the rate of usable data acquired during surveys has improved from 40-60 percent to over 90 percent since they began using the tool. Though the primary product of the flight planning tool is a pdf format document for use by the aircraft flight crew, the RAP team has begun carrying their laptop computer on the aircraft during missions. By connecting a Global Positioning System (GPS) device to the laptop and using ESRI ArcMap's GPS tool bar to overlay the aircraft position directly on the flight plan in real time, the RAP team can evaluate and correct the aircraft position as the mission is executed. (authors)

  5. Aerial Measuring System (AMS) Baseline Surveys for Emergency Planning

    SciTech Connect (OSTI)

    Lyons, C

    2012-06-04T23:59:59.000Z

    Originally established in the 1960s to support the Nuclear Test Program, the AMS mission is to provide a rapid and comprehensive worldwide aerial measurement, analysis, and interpretation capability in response to a nuclear/radiological emergency. AMS provides a responsive team of individuals whose processes allow for a mission to be conducted and completed with results available within hours. This presentation slide-show reviews some of the history of the AMS, summarizes present capabilities and methods, and addresses the value of the surveys.

  6. USE OF THE AERIAL MEASUREMENT SYSTEM HELICOPTER EMERGENCY RESPONSE ACQUISITION SYSTEMS WITH GEOGRAPHIC INFORMATION SYSTEM FOR RADIOACTIVE SOIL REMEDIATION - [11504

    SciTech Connect (OSTI)

    BROCK CT

    2011-02-15T23:59:59.000Z

    The Aerial Measurement System (AMS) Helicopter Emergency Response Acquisition System provides a thorough and economical means to identify and characterize the contaminants for large area radiological surveys. The helicopter system can provide a 100-percent survey of an area that qualifies as a scoping survey under the Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM) methodology. If the sensitivity is adequate when compared to the clean up values, it may also be used for the characterization survey. The data from the helicopter survey can be displayed and manipulated to provide invaluable data during remediation activities.

  7. Unmanned Aerial Vehicle Instrumentation for Rapid Aerial Photo System

    E-Print Network [OSTI]

    Adiprawita, Widyawardana; Semibiring, Jaka

    2008-01-01T23:59:59.000Z

    This research will proposed a new kind of relatively low cost autonomous UAV that will enable farmers to make just in time mosaics of aerial photo of their crop. These mosaics of aerial photo should be able to be produced with relatively low cost and within the 24 hours of acquisition constraint. The autonomous UAV will be equipped with payload management system specifically developed for rapid aerial mapping. As mentioned before turn around time is the key factor, so accuracy is not the main focus (not orthorectified aerial mapping). This system will also be equipped with special software to post process the aerial photos to produce the mosaic aerial photo map

  8. Controlled manipulation using autonomous aerial systems

    E-Print Network [OSTI]

    Srikanth, Manohar B. (Manohar Balagatte)

    2013-01-01T23:59:59.000Z

    The main focus of the thesis is to design and control Autonomous Aerial Systems, also referred to as Unmanned Aerial Vehicles (UAVs). UAVs are able to hover and navigate in space using the thrust forces generated by the ...

  9. Capabilities of the DOE Remote Sensing Laboratory`s aerial measuring system

    SciTech Connect (OSTI)

    Riedhauser, S.R.

    1995-09-01T23:59:59.000Z

    This report describes the capabilities of the Remote Sensing Laboratory`s aircraft for use in environmental radiation surveys, multispectral (visible, near infrared, and thermal infrared) surveys of vegetation and buildings, and photographic documentation of the areas covered by the two other surveys. The report discusses the technical capabilities of the various systems and presents examples of the data from a recent demonstration survey. To provide a view of the types of surveys the Remote Sensing Laboratory has conducted in the past, the appendices describe several of the previous area surveys and emergency search surveys.

  10. Aerial Radiation Measurements from the Fukushima Dai-ichi Nuclear Power Plant Accident

    SciTech Connect (OSTI)

    Guss, P. P.

    2012-07-16T23:59:59.000Z

    This document is a slide show type presentation concerning DOE and Aerial Measuring System (AMS) activities and results with respect to assessing the consequences of the releases from the Fukushima Dai-ichi Nuclear Power Plant. These include ground monitoring and aerial monitoring.

  11. Rev: 29 March 2011 Aerial Lift Operator Job Performance Measure (TQ-AERIAL-P)

    E-Print Network [OSTI]

    Ohta, Shigemi

    . Approximate total observation hours: ______. Administer the JPM. Equipment Qualifications Aerial Platform Manufacturer: _______________________________ Model: _____________ Maximum Capacity: ______ Note: Qualification successfully demonstrated. Type Propulsion Elevating Mechanism Qualification CodesANSI/SIA Standard Aerial

  12. Digital autoland system for unmanned aerial vehicles

    E-Print Network [OSTI]

    Wagner, Thomas William, Jr.

    2007-09-17T23:59:59.000Z

    aerial vehicles, the work and results found from this paper apply for piloted aircraft as well. The tech- niques developed in this paper can easily be extended to general aviation aircraft, military aircraft, or commercial aircraft. For any automatic.... This is reasonable for an aircraft of this size because most general aviation aircraft start to flare between 10 ft and 30 ft above the ground. It is desired for the aircraft to intercept the localizer and glideslope and track these beams to the runway centerline...

  13. myCopter Enabling Technologies for Personal Aerial Transportation Systems

    E-Print Network [OSTI]

    towards a Personal Aerial Transportation System, in which vehicles would also have vertical space into account the required operational infrastructure, instead of starting with the design of a vehicle. By investigating human-machine interfaces and training, automation technologies, and socio-economic impact, the my

  14. Avionics and control system development for mid-air rendezvous of two unmanned aerial vehicles

    E-Print Network [OSTI]

    Park, Sanghyuk, 1973-

    2004-01-01T23:59:59.000Z

    A flight control system was developed to achieve mid-air rendezvous of two unmanned aerial vehicles (UAVs) as a part of the Parent Child Unmanned Aerial Vehicle (PCUAV) project at MIT and the Draper Laboratory. A lateral ...

  15. DOWNSTREAM CHANNEL CHANGES AFTER A SMALL DAM REMOVAL: USING AERIAL PHOTOS AND MEASUREMENT ERROR FOR CONTEXT;

    E-Print Network [OSTI]

    Tullos, Desiree

    DOWNSTREAM CHANNEL CHANGES AFTER A SMALL DAM REMOVAL: USING AERIAL PHOTOS AND MEASUREMENT ERROR to assess downstream channel changes associated with a small dam removal. The Brownsville Dam, a 2.1 m tall downstream from the dam and in an upstream control reach using aerial photos (1994­2008) and in the field

  16. Atmospheric Radiation Measurement (ARM) Data from the ARM Aerial Facility

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

    The Atmospheric Radiation Measurement (ARM) Program is the largest global change research program supported by the U.S. Department of Energy. The primary goal of the ARM Program is to improve the treatment of cloud and radiation physics in global climate models in order to improve the climate simulation capabilities of these models. ARM data is collected both through permanent monitoring stations and field campaigns around the world. Airborne measurements required to answer science questions from researchers or to validate ground data are also collected. To find data from all categories of aerial operations, follow the links from the AAF information page at http://www.arm.gov/sites/aaf. Tables of information will provide start dates, duration, lead scientist, and the research site for each of the named campaigns. The title of a campaign leads, in turn, to a project description, contact information, and links to the data. Users will be requested to create a password, but the data files are free for viewing and downloading. The ARM Archive physically resides at the Oak Ridge National Laboratory.

  17. Modelling of a captive unmanned aerial system teledetecting oil pollution on sea surface

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    -Water Horizon crisis in the Gulf of Mexico, numerous aerial means were used to detect oil pollution locationsModelling of a captive unmanned aerial system teledetecting oil pollution on sea surface F. Muttin-spill, detection, dynamic modelling, winch, maritime pollution. 1 Introduction During 2010, and the Deep

  18. Aerial Measuring System | National Nuclear Security Administration

    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 TWP TWP RelatedCellulase C. bescii CelA, a highly active

  19. AERIAL MEASUREMENTS OF CONVECTION CELL ELEMENTS IN HEATED LAKES

    SciTech Connect (OSTI)

    Villa-Aleman, E; Saleem Salaymeh, S; Timothy Brown, T; Alfred Garrett, A; Malcolm Pendergast, M; Linda Nichols, L

    2007-12-19T23:59:59.000Z

    Power plant-heated lakes are characterized by a temperature gradient in the thermal plume originating at the discharge of the power plant and terminating at the water intake. The maximum water temperature discharged by the power plant into the lake depends on the power generated at the facility and environmental regulations on the temperature of the lake. Besides the observed thermal plume, cloud-like thermal cells (convection cell elements) are also observed on the water surface. The size, shape and temperature of the convection cell elements depends on several parameters such as the lake water temperature, wind speed, surfactants and the depth of the thermocline. The Savannah River National Laboratory (SRNL) and Clemson University are collaborating to determine the applicability of laboratory empirical correlations between surface heat flux and thermal convection intensity. Laboratory experiments at Clemson University have demonstrated a simple relationship between the surface heat flux and the standard deviation of temperature fluctuations. Similar results were observed in the aerial thermal imagery SRNL collected at different locations along the thermal plume and at different elevations. SRNL will present evidence that the results at Clemson University are applicable to cooling lakes.

  20. Emergency Exercise to Focus on Aerial Radiation Detection and Measuring

    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 AdministrationField Campaign:INEAWater UseCElizabeth O'Malley DeputyEly8,8CBL isSystems at

  1. DESIGN OF SMALL SCALE GAS TURBINE SYSTEMS FOR UNMANNED-AERIAL VEHICLES

    E-Print Network [OSTI]

    Camci, Cengiz

    DESIGN OF SMALL SCALE GAS TURBINE SYSTEMS FOR UNMANNED-AERIAL VEHICLES (AERSP 597/497-K) SPRING 814 865 9871 cxc11@psu.edu Summary : The proposed course is a three-credit gas turbine design course will be evaluated against (agreed) deadlines by the instructor. A number of lecturers from the gas turbine industry

  2. Estimation algorithm for autonomous aerial refueling using a vision based relative navigation system

    E-Print Network [OSTI]

    Bowers, Roshawn Elizabeth

    2005-11-01T23:59:59.000Z

    A new impetus to develop autonomous aerial refueling has arisen out of the growing demand to expand the capabilities of unmanned aerial vehicles (UAVs). With autonomous aerial refueling, UAVs can retain the advantages of being small, inexpensive...

  3. aerial vehicle systems: Topics by E-print Network

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

    Ioannou A, utomatic is todesign and test avehicle control system in order toachieve full vehicle automation in the longitudinal vehicle following isan important feature of a fully...

  4. Modeling and evaluation of aerial layer communications system architectures

    E-Print Network [OSTI]

    Ajemian, Stephen P

    2014-01-01T23:59:59.000Z

    Airborne networks are being developed to provide communications services in order to augment space-based and terrestrial communications systems. These airborne networks must provide point to point wireless communications ...

  5. Nonlinear Decelerator for Payloads in Aerial Delivery Systems. I: Design and Testing

    E-Print Network [OSTI]

    T. Lyons; M. Ginther; P. Mascarenas; E. Rickard; J. Robinson; J. Braeger; H. Liu; A. Ludu

    2014-08-19T23:59:59.000Z

    We study the dynamics and the optimization of the shock deceleration supported by a payload when its airborne carrier impacts the ground. We build a nonlinear elastic model for a container prototype and an elastic suspension system for the payload. We model the dynamics of this system and extract information on maximum deceleration, energy transfer between the container and payload, and energy resonant damping. We designed the system and perform lab experiments for various terminal velocities and types of grounds (cement, grass, sand water, etc.). The results are compared with the theoretical model and results are commented, including predictions for deceleration at different types of ground impact. The results can be used for aerial delivery systems, splash-down of capsules, recoveries, weather balloons, coastal surveying systems, or the new introduced goal-line technology in sport competitions.

  6. Aerial Measurement of Radioxenon Concentration off the West Coast of Vancouver Island following the Fukushima Reactor Accident

    E-Print Network [OSTI]

    Sinclair, L E; Fortin, R; Carson, J M; Saull, P R B; Coyle, M J; Van Brabant, R A; Buckle, J L; Desjardins, S M; Hall, R M

    2011-01-01T23:59:59.000Z

    In response to the Fukushima nuclear reactor accident, on March 20th, 2011, Natural Resources Canada conducted aerial radiation surveys over water just off of the west coast of Vancouver Island. Dose-rate levels were found to be consistent with background radiation, however a clear signal due to Xe-133 was observed. Methods to extract Xe-133 count rates from the measured spectra, and to determine the corresponding Xe-133 volumetric concentration, were developed. The measurements indicate that Xe-133 concentrations on average lie in the range of 30 to 70 Bq/m3.

  7. Aerial Measurement of Radioxenon Concentration off the West Coast of Vancouver Island following the Fukushima Reactor Accident

    E-Print Network [OSTI]

    L. E. Sinclair; H. C. J. Seywerd; R. Fortin; J. M. Carson; P. R. B. Saull; M. J. Coyle; R. A. Van Brabant; J. L. Buckle; S. M. Desjardins; R. M. Hall

    2011-06-20T23:59:59.000Z

    In response to the Fukushima nuclear reactor accident, on March 20th, 2011, Natural Resources Canada conducted aerial radiation surveys over water just off of the west coast of Vancouver Island. Dose-rate levels were found to be consistent with background radiation, however a clear signal due to Xe-133 was observed. Methods to extract Xe-133 count rates from the measured spectra, and to determine the corresponding Xe-133 volumetric concentration, were developed. The measurements indicate that Xe-133 concentrations on average lie in the range of 30 to 70 Bq/m3.

  8. Investigation of an MLE Algorithm for Quantification of Aerial Radiological Measurements

    SciTech Connect (OSTI)

    Reed, Michael; Essex, James

    2012-05-10T23:59:59.000Z

    Aerial radiation detection is routinely used by many organizations (DHS, DOE, EPA, etc.) for the purposes of identifying the presence of and quantifying the existence of radiation along the ground. This work involves the search for lost or missing sources, as well as the characterization of large-scale releases such as might occur in a nuclear power plant accident. The standard in aerial radiological surveys involves flying large arrays of sodium-iodide detectors at altitude (15 to 700 meters) to acquire geo-referenced, 1 Hz, 1024-channel spectra. The historical shortfalls of this technology include: • Very low spatial resolution (typical field of view is circle of two-times altitude) • Relatively low detectability associated with large stand-off distances • Fundamental challenges in performing ground-level quantification This work uses modern computational power in conjunction with multi-dimensional deconvolution algorithms in an effort to improve spatial resolution, enhance detectability, and provide a robust framework for quantification.

  9. Automate Monitoring System for the Dynamics of Lands Based on Aerial Photos Assessed by Artificial Neural Techniques

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    24 Automate Monitoring System for the Dynamics of Lands Based on Aerial Photos Assessed by Artificial Neural Techniques Ioan Ilean Department of Computer Science "1Decembrie 1918" University Alba. In this project an application of artificial neural networks to human-centered earth science information

  10. Number of lightning discharges causing damage to lightning arrester cables for aerial transmission lines in power systems

    SciTech Connect (OSTI)

    Nikiforov, E. P. [Electric Power Scientific Research Institute (VNIIE), branch of OAO 'NTTs Elektroenergetika' (Russian Federation)

    2009-07-15T23:59:59.000Z

    Damage by lightning discharges to lightning arrester cables for 110-175 kV aerial transmission lines is analyzed using data from power systems on incidents with aerial transmission lines over a ten year operating period (1997-2006). It is found that failures of lightning arrester cables occur when a tensile force acts on a cable heated to the melting point by a lightning current. The lightning currents required to heat a cable to this extent are greater for larger cable cross sections. The probability that a lightning discharge will develop decreases as the amplitude of the lightning current increases, which greatly reduces the number of lightning discharges which damage TK-70 cables compared to TK-50 cables. In order to increase the reliability of lightning arrester cables for 110 kV aerial transmission lines, TK-70 cables should be used in place of TK-50 cables. The number of lightning discharges per year which damage lightning arrester cables is lowered when the density of aerial transmission lines is reduced within the territory of electrical power systems. An approximate relationship between these two parameters is obtained.

  11. aerial measuring systems: Topics by E-print Network

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

    informed by human-robot interaction (HRI) and technology findings, resulting in the design of an interface that increased the individual... Peschel, Joshua Michael 2012-10-19 18...

  12. aerial measuring system: Topics by E-print Network

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

    informed by human-robot interaction (HRI) and technology findings, resulting in the design of an interface that increased the individual... Peschel, Joshua Michael 2012-10-19 18...

  13. Modelling of a captive unmanned aerial system teledetecting oil pollution on sea surface

    E-Print Network [OSTI]

    Muttin, Frédéric

    2013-01-01T23:59:59.000Z

    Recent major oil-spills were tracked using observations with sufficient altitudes over the sea surface, to detect oil slick locations. For oil-spill responders, we propose a captive Unmanned Aerial System, UAS acting like a periscope over a ship or supply vessel. The system is composed of an umbilical deployed from ship deck, and there are few studies that have examined elasticity within cable dynamic during take-off or landing (TOL) and normal flight phases. Therefore, the safest approach for the control-commands of the system is through umbilical dynamic modelling. We give a time-dependant finite-element formulation, using improved elastic non-linear cable elements. Two kinds of boundary condition, natural or essential, are discussed for roll-in or roll-out of the umbilical. A numerical convergence and a validation with an exact solution are provided, using two examples for the flight parameters. Finally, sensitivity of the model potentially extends its capacity for the system equilibrium prediction, under ...

  14. Improving Rangeland Monitoring and Assessment: Integrating Remote Sensing, GIS, and Unmanned Aerial Vehicle Systems

    SciTech Connect (OSTI)

    Robert Paul Breckenridge

    2007-05-01T23:59:59.000Z

    Creeping environmental changes are impacting some of the largest remaining intact parcels of sagebrush steppe ecosystems in the western United States, creating major problems for land managers. The Idaho National Laboratory (INL), located in southeastern Idaho, is part of the sagebrush steppe ecosystem, one of the largest ecosystems on the continent. Scientists at the INL and the University of Idaho have integrated existing field and remotely sensed data with geographic information systems technology to analyze how recent fires on the INL have influenced the current distribution of terrestrial vegetation. Three vegetation mapping and classification systems were used to evaluate the changes in vegetation caused by fires between 1994 and 2003. Approximately 24% of the sagebrush steppe community on the INL was altered by fire, mostly over a 5-year period. There were notable differences between methods, especially for juniper woodland and grasslands. The Anderson system (Anderson et al. 1996) was superior for representing the landscape because it includes playa/bare ground/disturbed area and sagebrush steppe on lava as vegetation categories. This study found that assessing existing data sets is useful for quantifying fire impacts and should be helpful in future fire and land use planning. The evaluation identified that data from remote sensing technologies is not currently of sufficient quality to assess the percentage of cover. To fill this need, an approach was designed using both helicopter and fixed wing unmanned aerial vehicles (UAVs) and image processing software to evaluate six cover types on field plots located on the INL. The helicopter UAV provided the best system compared against field sampling, but is more dangerous and has spatial coverage limitations. It was reasonably accurate for dead shrubs and was very good in assessing percentage of bare ground, litter and grasses; accuracy for litter and shrubs is questionable. The fixed wing system proved to be feasible and can collect imagery for very large areas in a short period of time. It was accurate for bare ground and grasses. Both UAV systems have limitations, but these will be reduced as the technology advances. In both cases, the UAV systems collected data at a much faster rate than possible on the ground. The study concluded that improvements in automating the image processing efforts would greatly improve use of the technology. In the near future, UAV technology may revolutionize rangeland monitoring in the same way Global Positioning Systems have affected navigation while conducting field activities.

  15. Experimental Dependability Evaluation of a Fail-Bounded Jet Engine Control System for Unmanned Aerial Vehicles

    E-Print Network [OSTI]

    Karlsson, Johan

    having only minor effect on the jet engine (7.0%), while 20.1% of the errors were detected by hardware exceptions and 1.9% were detected by executable assertions in the software. The remaining 1.6% is classified. This is especially true for applications such as Unmanned Aerial Vehicles (UAVs). The market for military UAVs

  16. Electrochemical thermodynamic measurement system

    DOE Patents [OSTI]

    Reynier, Yvan (Meylan, FR); Yazami, Rachid (Los Angeles, CA); Fultz, Brent T. (Pasadena, CA)

    2009-09-29T23:59:59.000Z

    The present invention provides systems and methods for accurately characterizing thermodynamic and materials properties of electrodes and electrochemical energy storage and conversion systems. Systems and methods of the present invention are configured for simultaneously collecting a suite of measurements characterizing a plurality of interconnected electrochemical and thermodynamic parameters relating to the electrode reaction state of advancement, voltage and temperature. Enhanced sensitivity provided by the present methods and systems combined with measurement conditions that reflect thermodynamically stabilized electrode conditions allow very accurate measurement of thermodynamic parameters, including state functions such as the Gibbs free energy, enthalpy and entropy of electrode/electrochemical cell reactions, that enable prediction of important performance attributes of electrode materials and electrochemical systems, such as the energy, power density, current rate and the cycle life of an electrochemical cell.

  17. Aerial reconstructions via probabilistic data fusion

    E-Print Network [OSTI]

    Cabezas, Randi

    2013-01-01T23:59:59.000Z

    In this thesis we propose a probabilistic model that incorporates multi-modal noisy measurements: aerial images and Light Detection and Ranging (LiDAR) to recover scene geometry and appearance in order to build a 3D ...

  18. Magnetic Field Measurement System

    SciTech Connect (OSTI)

    Kulesza, Joe; Johnson, Eric; Lyndaker, Aaron; Deyhim, Alex; Waterman, Dave; Blomqvist, K. Ingvar [Advanced Design Consulting USA, 126 Ridge Road, P.O. Box 187, Lansing, NY 14882 (United States); Dunn, Jonathan Hunter [MAX-lab, SE-221 00 Lund (Sweden)

    2007-01-19T23:59:59.000Z

    A magnetic field measurement system was designed, built and installed at MAX Lab, Sweden for the purpose of characterizing the magnetic field produced by Insertion Devices (see Figure 1). The measurement system consists of a large granite beam roughly 2 feet square and 14 feet long that has been polished beyond laboratory grade for flatness and straightness. The granite precision coupled with the design of the carriage yielded minimum position deviations as measured at the probe tip. The Hall probe data collection and compensation technique allows exceptional resolution and range while taking data on the fly to programmable sample spacing. Additional flip coil provides field integral data.

  19. E-Print Network 3.0 - aerial photo system Sample Search Results

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

    Photos... Evolution and Pollutant Transport System (CONCEPTS) modeling software. The stream will be evaluated... in the restoration of a small urban stream for channel...

  20. NNSA to Conduct Aerial Radiological Surveys Over Washington,...

    National Nuclear Security Administration (NNSA)

    Office (DNDO). The background data will be used by DNDO to improve aerial radiation measurement capabilities used by local, state, and federal entities. Established by Congress in...

  1. Getting Ready for the Challenges for the Air Traffic Management for Unmanned Aerial Systems (UAS) C.W. Johnson,

    E-Print Network [OSTI]

    Johnson, Chris

    for a lost link profile. If communications are lost, the vehicle will autonomously cross the airspace between as EUROCONTROL's Spec-0102 on the Use of Military Unmanned Aerial Vehicles as Operational Air Traffic Outside interaction between ATCOs and UAS platforms. These are the flight patterns that are executed autonomously when

  2. In situ measurement system

    DOE Patents [OSTI]

    Lord, D.E.

    1980-11-24T23:59:59.000Z

    A multipurpose in situ underground measurement system comprising a plurality of long electrical resistance elements in the form of rigid reinforcing bars, each having an open loop hairpin configuration of shorter length than the other resistance elements. The resistance elements are arranged in pairs in a unitized structure, and grouted in place in the underground volume. Measurement means are provided for obtaining for each pair the electrical resistance of each element and the difference in electrical resistance of the paired elements, which difference values may be used in analytical methods involving resistance as a function of temperature. A scanner means sequentially connects the resistance-measuring apparatus to each individual pair of elements. A source of heating current is also selectively connectable for heating the elements to an initial predetermined temperature prior to electrical resistance measurements when used as an anemometer.

  3. aerial monitoring: Topics by E-print Network

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

    Monitoring System for the Dynamics of Lands Based on Aerial Photos Assessed by Artificial Neural Techniques Physics Websites Summary: interest in this direction is the...

  4. aerial radiological monitoring: Topics by E-print Network

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

    Monitoring System for the Dynamics of Lands Based on Aerial Photos Assessed by Artificial Neural Techniques Physics Websites Summary: interest in this direction is the...

  5. Trajectory optimization for target localization using small unmanned aerial vehicles

    E-Print Network [OSTI]

    Ponda, Sameera S

    2008-01-01T23:59:59.000Z

    Small unmanned aerial vehicles (UAVs), equipped with navigation systems and video capability, are currently being deployed for intelligence, reconnaissance and surveillance missions. One particular mission of interest ...

  6. Optical absorption measurement system

    DOE Patents [OSTI]

    Draggoo, Vaughn G. (Livermore, CA); Morton, Richard G. (San Diego, CA); Sawicki, Richard H. (Pleasanton, CA); Bissinger, Horst D. (Livermore, CA)

    1989-01-01T23:59:59.000Z

    The system of the present invention contemplates a non-intrusive method for measuring the temperature rise of optical elements under high laser power optical loading to determine the absorption coefficient. The method comprises irradiating the optical element with a high average power laser beam, viewing the optical element with an infrared camera to determine the temperature across the optical element and calculating the absorption of the optical element from the temperature.

  7. Utilization of Local Law Enforcement Aerial Resources in Consequence Management (CM) Response

    SciTech Connect (OSTI)

    Wasiolek, Piotr T.; Malchow, Russell L.

    2013-03-12T23:59:59.000Z

    During the past decade the U.S. Department of Homeland Security (DHS) was instrumental in enhancing the nation’s ability to detect and prevent a radiological or nuclear attack in the highest risk cities. Under the DHS Securing the Cities initiative, nearly 13,000 personnel in the New York City region have been trained in preventive radiological and nuclear detection operations, and nearly 8,500 pieces of radiological detection equipment have been funded. As part of the preventive radiological/nuclear detection (PRND) mission, several cities have received funding to purchase commercial aerial radiation detection systems. In 2008, the U.S. Department of Energy, National Nuclear Security Administration Aerial Measuring System (AMS) program started providing Mobile Aerial Radiological Surveillance (MARS) training to such assets, resulting in over 150 HAZMAT teams’ officers and pilots from 10 law enforcement organizations and fire departments being trained in the aerial radiation detection. From the beginning, the MARS training course covered both the PRND and consequence management (CM) missions. Even if the law enforcement main focus is PRND, their aerial assets can be utilized in the collection of initial radiation data for post-event radiological CM response. Based on over 50 years of AMS operational experience and information collected during MARS training, this presentation will focus on the concepts of CM response using aerial assets as well as utilizing law enforcement/fire department aerial assets in CM. Also discussed will be the need for establishing closer relationships between local jurisdictions’ aerial radiation detection capabilities and state and local radiation control program directors, radiological health department managers, etc. During radiological events these individuals may become primary experts/advisers to Incident Commanders for radiological emergency response, especially in the early stages of a response. The knowledge of the existence, specific capabilities, and use of local aerial radiation detection systems would be critical in planning the response, even before federal assets arrive on the scene. The relationship between local and federal aerial assets and the potential role for the further use of the MARS training and expanded AMS Reachback capabilities in facilitating such interactions will be discussed.

  8. APAWSAN: Actor Positioning for Aerial Wireless Sensor and Actor Networks

    E-Print Network [OSTI]

    Turgut, Damla

    to be autonomous during deployment. The recent advances in development of small unmanned aerial vehicles (UAVs stations can improve network performance measures such as energy consumption and traffic load balancing vehicles (UAVs) with built in sensors made it possible to deploy aerial sensor and actor networks

  9. ADMINISTRATIVE RECORDS SCHEDULE 17: CARTOGRAPHIC, AERIAL PHOTOGRAPHIC...

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

    7: CARTOGRAPHIC, AERIAL PHOTOGRAPHIC, ARCHITECTURAL, ENGINEERING, AND FACILITY MANAGEMENT RECORDS ADMINISTRATIVE RECORDS SCHEDULE 17: CARTOGRAPHIC, AERIAL PHOTOGRAPHIC,...

  10. Engineering Aerial view of

    E-Print Network [OSTI]

    Yang, Junfeng

    -neutral Torus 2 Climate Change 4 Combustion and Catalysis Laboratory #12;4 5 1Engineering Revolution 5 #12;6 7Columbia Engineering Plus #12;1 1 2 3 4 5 6 Aerial view of Columbia campus with Columbia Engineering-a liated buildings highlighted in blue Columbia Engineering Plus Engineering Revolution 4

  11. The DOE ARM Aerial Facility

    SciTech Connect (OSTI)

    Schmid, Beat; Tomlinson, Jason M.; Hubbe, John M.; Comstock, Jennifer M.; Mei, Fan; Chand, Duli; Pekour, Mikhail S.; Kluzek, Celine D.; Andrews, Elisabeth; Biraud, S.; McFarquhar, Greg

    2014-05-01T23:59:59.000Z

    The Department of Energy Atmospheric Radiation Measurement (ARM) Program is a climate research user facility operating stationary ground sites that provide long-term measurements of climate relevant properties, mobile ground- and ship-based facilities to conduct shorter field campaigns (6-12 months), and the ARM Aerial Facility (AAF). The airborne observations acquired by the AAF enhance the surface-based ARM measurements by providing high-resolution in-situ measurements for process understanding, retrieval-algorithm development, and model evaluation that are not possible using ground- or satellite-based techniques. Several ARM aerial efforts were consolidated into the AAF in 2006. With the exception of a small aircraft used for routine measurements of aerosols and carbon cycle gases, AAF at the time had no dedicated aircraft and only a small number of instruments at its disposal. In this "virtual hangar" mode, AAF successfully carried out several missions contracting with organizations and investigators who provided their research aircraft and instrumentation. In 2009, AAF started managing operations of the Battelle-owned Gulfstream I (G-1) large twin-turboprop research aircraft. Furthermore, the American Recovery and Reinvestment Act of 2009 provided funding for the procurement of over twenty new instruments to be used aboard the G-1 and other AAF virtual-hangar aircraft. AAF now executes missions in the virtual- and real-hangar mode producing freely available datasets for studying aerosol, cloud, and radiative processes in the atmosphere. AAF is also engaged in the maturation and testing of newly developed airborne sensors to help foster the next generation of airborne instruments.

  12. Portable Positron Measurement System (PPMS)

    SciTech Connect (OSTI)

    None

    2011-01-01T23:59:59.000Z

    Portable Positron Measurement System (PPMS) is an automated, non-destructive inspection system based on positron annihilation, which characterizes a material's in situatomic-level properties during the manufacturing processes of formation, solidification, and heat treatment. Simultaneous manufacturing and quality monitoring now are possible. Learn more about the lab's project on our facebook site http://www.facebook.com/idahonationallaboratory.

  13. Portable Positron Measurement System (PPMS)

    ScienceCinema (OSTI)

    None

    2013-05-28T23:59:59.000Z

    Portable Positron Measurement System (PPMS) is an automated, non-destructive inspection system based on positron annihilation, which characterizes a material's in situatomic-level properties during the manufacturing processes of formation, solidification, and heat treatment. Simultaneous manufacturing and quality monitoring now are possible. Learn more about the lab's project on our facebook site http://www.facebook.com/idahonationallaboratory.

  14. Rotor component displacement measurement system

    DOE Patents [OSTI]

    Mercer, Gary D.; Li, Ming C.; Baum, Charles R.

    2003-05-27T23:59:59.000Z

    A measuring system for measuring axial displacement of a tube relative to an axially stationary component in a rotating rotor assembly includes at least one displacement sensor adapted to be located normal to a longitudinal axis of the tube; an insulated cable system adapted for passage through the rotor assembly; a rotatable proximitor module located axially beyond the rotor assembly to which the cables are connected; and a telemetry system operatively connected to the proximitor module for sampling signals from the proximitor module and forwarding data to a ground station.

  15. An aerial radiological survey of the Davis-Monthan Air Force Base and surrounding area, Tucson, Arizona

    SciTech Connect (OSTI)

    NONE

    1995-09-01T23:59:59.000Z

    An aerial radiological survey, which was conducted from March 1 to 13, 1995, covered a 51-square-mile (132-square-kilometer) area centered on the Davis-Monthan Air Force Base (DMAFB) in Tucson, Arizona. The results of the survey are reported as contours of bismuth-214 ({sup 214}Bi) soil concentrations, which are characteristic of natural uranium and its progeny, and as contours of the total terrestrial exposure rates extrapolated to one meter above ground level. All data were scaled and overlaid on an aerial photograph of the DMAFB area. The terrestrial exposure rates varied from 9 to 20 microroentgens per hour at one meter above the ground. Elevated levels of terrestrial radiation due to increased concentrations of {sup 214}Bi (natural uranium) were observed over the Southern Pacific railroad yard and along portions of the railroad track bed areas residing both within and outside the base boundaries. No man-made, gamma ray-emitting radioactive material was observed by the aerial survey. High-purity germanium spectrometer and pressurized ionization chamber measurements at eight locations within the base boundaries were used to verify the integrity of the aerial results. The results of the aerial and ground-based measurements were found to be in agreement. However, the ground-based measurements were able to detect minute quantities of cesium-137 ({sup 137}Cs) at six of the eight locations examined. The presence of {sup 137}Cs is a remnant of fallout from foreign and domestic atmospheric nuclear weapons testing that occurred in the 1950s and early 1960s. Cesium-137 concentrations varied from 0.1 to 0.3 picocuries per gram, which is below the minimum detectable activity of the aerial system.

  16. Tracer airflow measurement system (TRAMS)

    DOE Patents [OSTI]

    Wang, Duo (Albany, CA)

    2007-04-24T23:59:59.000Z

    A method and apparatus for measuring fluid flow in a duct is disclosed. The invention uses a novel high velocity tracer injector system, an optional insertable folding mixing fan for homogenizing the tracer within the duct bulk fluid flow, and a perforated hose sampling system. A preferred embodiment uses CO.sub.2 as a tracer gas for measuring air flow in commercial and/or residential ducts. In extant commercial buildings, ducts not readily accessible by hanging ceilings may be drilled with readily plugged small diameter holes to allow for injection, optional mixing where desired using a novel insertable foldable mixing fan, and sampling hose.

  17. MEASUREMENT SENSITIVITY AND ACCURACY VERIFICATION FOR AN ANTENNA MEASUREMENT SYSTEM

    E-Print Network [OSTI]

    Arakaki, Dean Y.

    MEASUREMENT SENSITIVITY AND ACCURACY VERIFICATION FOR AN ANTENNA MEASUREMENT SYSTEM Newlyn Hui Luis Obispo, CA 93407 ABSTRACT An antenna measurement system was developed to complement a new an RF link budget is calculated to evaluate the performance of the antenna measurement system. Keywords

  18. Measuring Advances in HVAC Distribution System Design

    E-Print Network [OSTI]

    Franconi, E.

    2011-01-01T23:59:59.000Z

    Gabel and Andresen, HVAC Secondary Toolkil. Atlanta: ASHRAE,P_02 Measuring Advances in HVAC Distribution System Designdesign and operation of the HVAC thermal distribution system

  19. System for measuring film thickness

    DOE Patents [OSTI]

    Batishko, Charles R. (West Richland, WA); Kirihara, Leslie J. (Richland, WA); Peters, Timothy J. (Richland, WA); Rasmussen, Donald E. (Richland, WA)

    1990-01-01T23:59:59.000Z

    A system for determining the thicknesses of thin films of materials exhibiting fluorescence in response to exposure to excitation energy from a suitable source of such energy. A section of film is illuminated with a fixed level of excitation energy from a source such as an argon ion laser emitting blue-green light. The amount of fluorescent light produced by the film over a limited area within the section so illuminated is then measured using a detector such as a photomultiplier tube. Since the amount of fluorescent light produced is a function of the thicknesses of thin films, the thickness of a specific film can be determined by comparing the intensity of fluorescent light produced by this film with the intensity of light produced by similar films of known thicknesses in response to the same amount of excitation energy. The preferred embodiment of the invention uses fiber optic probes in measuring the thicknesses of oil films on the operational components of machinery which are ordinarily obscured from view.

  20. MEMS BASED DOPPLER VELOCITY MEASUREMENT SYSTEM

    E-Print Network [OSTI]

    White, Robert D.

    .2 Doppler Effect...................................................................................10 2MEMS BASED DOPPLER VELOCITY MEASUREMENT SYSTEM A dissertation submitted by Minchul Shin IN PARTIAL micromachined ultrasonic transducer (cMUT) based in-air Doppler velocity measurement system using a 1 cm2 planar

  1. Phase measurement system using a dithered clock

    DOE Patents [OSTI]

    Fairley, C.R.; Patterson, S.R.

    1991-05-28T23:59:59.000Z

    A phase measurement system is disclosed which measures the phase shift between two signals by dithering a clock signal and averaging a plurality of measurements of the phase differences between the two signals. 8 figures.

  2. Paper AAS 02-141 Navigation of Aerial Platforms on Titan

    E-Print Network [OSTI]

    Lorenz, Ralph D.

    -shrouded moon Titan may involve aerial platforms such as airships or helicopters. A significant challenge Cassini-Huygens mission may involve mobile aerial platforms such as airships or helicopters. Such vehicles (these may not be the same thing ­ sample acquisition systems may be deployable from an airship

  3. Toolbox Safety Talk Aerial Work Platforms

    E-Print Network [OSTI]

    Pawlowski, Wojtek

    Toolbox Safety Talk Aerial Work Platforms Environmental Health & Safety Facilities Safety & Health to Environmental Health & Safety for recordkeeping. Aerial work platforms are important tools and if used correctly, and equipment damage. This guide addresses safe use of aerial work platforms and provides tips to prevent

  4. Aerial Neutron Detection: Neutron Signatures for Nonproliferation and Emergency Response Applications

    SciTech Connect (OSTI)

    Maurer, Richard J.; Stampahar, Thomas G.; Smith, Ethan X.; Mukhopadhyay, Sanjoy; Wolff, Ronald S.; Rourke, Timothy J.; LeDonne, Jeffrey P.; Avaro, Emanuele; Butler, D. Andre; Borders, Kevin L.; Stampahar, Jezabel; Schuck, William H.; Selfridge, Thomas L.; McKissack, Thomas M.; Duncan, William W.; Hendricks, Thane J.

    2012-10-17T23:59:59.000Z

    From 2007 to the present, the Remote Sensing Laboratory has been conducting a series of studies designed to expand our fundamental understanding of aerial neutron detection with the goal of designing an enhanced sensitivity detection system for long range neutron detection. Over 35 hours of aerial measurements in a helicopter were conducted for a variety of neutron emitters such as neutron point sources, a commercial nuclear power reactor, nuclear reactor spent fuel in dry cask storage, depleted uranium hexafluoride and depleted uranium metal. The goals of the project were to increase the detection sensitivity of our instruments such that a 5.4 × 104 neutron/second source could be detected at 100 feet above ground level at a speed of 70 knots and to enhance the long-range detection sensitivity for larger neutron sources, i.e., detection ranges above 1000 feet. In order to increase the sensitivity of aerial neutron detection instruments, it is important to understand the dynamics of the neutron background as a function of altitude. For aerial neutron detection, studies have shown that the neutron background primarily originates from above the aircraft, being produced in the upper atmosphere by galactic cosmic-ray interactions with air molecules. These interactions produce energetic neutrons and charged particles that cascade to the earth’s surface, producing additional neutrons in secondary collisions. Hence, the neutron background increases as a function of altitude which is an impediment to long-range neutron detection. In order to increase the sensitivity for long range detection, it is necessary to maintain a low neutron background as a function of altitude. Initial investigations show the variation in the neutron background can be decreased with the application of a cosmic-ray shield. The results of the studies along with a representative data set are presented.

  5. An aerial radiological survey of the Nevada Test Site

    SciTech Connect (OSTI)

    Hendricks, T J; Riedhauser, S R

    1999-12-01T23:59:59.000Z

    A team from the Remote Sensing Laboratory conducted an aerial radiological survey of the US Department of Energy's Nevada Test Site including three neighboring areas during August and September 1994. The survey team measured the terrestrial gamma radiation at the Nevada Test Site to determine the levels of natural and man-made radiation. This survey included the areas covered by previous surveys conducted from 1962 through 1993. The results of the aerial survey showed a terrestrial background exposure rate that varied from less than 6 microroentgens per hour (mR/h) to 50 mR/h plus a cosmic-ray contribution that varied from 4.5 mR/h at an elevation of 900 meters (3,000 feet) to 8.5 mR/h at 2,400 meters (8,000 feet). In addition to the principal gamma-emitting, naturally occurring isotopes (potassium-40, thallium-208, bismuth-214, and actinium-228), the man-made radioactive isotopes found in this survey were cobalt-60, cesium-137, europium-152, protactinium-234m an indicator of depleted uranium, and americium-241, which are due to human actions in the survey area. Individual, site-wide plots of gross terrestrial exposure rate, man-made exposure rate, and americium-241 activity (approximating the distribution of all transuranic material) are presented. In addition, expanded plots of individual areas exhibiting these man-made contaminations are given. A comparison is made between the data from this survey and previous aerial radiological surveys of the Nevada Test Site. Some previous ground-based measurements are discussed and related to the aerial data. In regions away from man-made activity, the exposure rates inferred from the gamma-ray measurements collected during this survey agreed very well with the exposure rates inferred from previous aerial surveys.

  6. AERIAL PHOTO INTERPRETATION NATIONAL INVENTORY OF LANDSCAPES

    E-Print Network [OSTI]

    MANUAL FOR AERIAL PHOTO INTERPRETATION IN THE NATIONAL INVENTORY OF LANDSCAPES IN SWEDEN NILS YEAR.................................................................................................. 10 2.1.4 Information for directed field inventories

  7. Assessing the capabilities of patternshop measurement systems

    SciTech Connect (OSTI)

    Peters, F.E.; Voigt, R.C.

    1995-12-01T23:59:59.000Z

    Casting customers continue to demand tighter dimensional tolerances for casting features. The foundry then places demands on the patternshop to produce more accurate patterns. Control of all sources of dimensional variability, including measurement system variability in the foundry and patternshop, is important to insure casting accuracy. Sources of dimensional casting errors will be reviewed, focusing on the importance of accurate patterns. The foundry and patternshop together must work within the tolerance limits established by the customer. In light of contemporary pattern tolerances, the patternshop must review its current measurement methods. The measurement instrument must have sufficient resolution to detect part variability. In addition, the measurement equipment must be used consistently by all patternmakers to insure adequacy of the measurement system. Without these precautions, measurement error can significantly contribute to overall pattern variability. Simple robust methods to check the adequacy of pattern measurement systems are presented. These tests will determine the variability that is contributed by the measurement equipment and by the operators. Steps to control measurement variability once it has been identified are also provided. Measurement system errors for various types of measurement equipment are compared to the allowable pattern tolerances, that are established together by the foundry and patternshop.

  8. Embedded avionics with Kalman state estimation for a novel micro-scale unmanned aerial vehicle

    E-Print Network [OSTI]

    Tzanetos, Theodore

    2013-01-01T23:59:59.000Z

    An inertial navigation system leveraging Kalman estimation techniques and quaternion dynamics is developed for deployment to a micro-scale unmanned aerial vehicle (UAV). The capabilities, limitations, and requirements of ...

  9. Autonomous navigation and tracking of dynamic surface targets on-board a computationally impoverished aerial vehicle

    E-Print Network [OSTI]

    Selby, William Clayton

    2011-01-01T23:59:59.000Z

    This thesis describes the development of an independent, on-board visual servoing system which allows a computationally impoverished aerial vehicle to autonomously identify and track a dynamic surface target. Image ...

  10. Radiation beam calorimetric power measurement system

    DOE Patents [OSTI]

    Baker, John (Livermore, CA); Collins, Leland F. (Pleasanton, CA); Kuklo, Thomas C. (Ripon, CA); Micali, James V. (Dublin, CA)

    1992-01-01T23:59:59.000Z

    A radiation beam calorimetric power measurement system for measuring the average power of a beam such as a laser beam, including a calorimeter configured to operate over a wide range of coolant flow rates and being cooled by continuously flowing coolant for absorbing light from a laser beam to convert the laser beam energy into heat. The system further includes a flow meter for measuring the coolant flow in the calorimeter and a pair of thermistors for measuring the temperature difference between the coolant inputs and outputs to the calorimeter. The system also includes a microprocessor for processing the measured coolant flow rate and the measured temperature difference to determine the average power of the laser beam.

  11. Particle measurement systems and methods

    DOE Patents [OSTI]

    Steele, Paul T. (Livermore, CA)

    2011-10-04T23:59:59.000Z

    A system according to one embodiment includes a light source for generating light fringes; a sampling mechanism for directing a particle through the light fringes; and at least one light detector for detecting light scattered by the particle as the particle passes through the light fringes. A method according to one embodiment includes generating light fringes using a light source; directing a particle through the light fringes; and detecting light scattered by the particle as the particle passes through the light fringes using at least one light detector.

  12. aerial density distributions: Topics by E-print Network

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

    Unmanned Aerial Vehicles MIT - DSpace Summary: In order to deploy intelligent, next-generation applications on Unmanned Aerial Vehicles (UAVs), we must first develop a software...

  13. Designing the lean enterprise performance measurement system

    E-Print Network [OSTI]

    Mahidhar, Vikram

    2005-01-01T23:59:59.000Z

    The research contained in this thesis explores design attributes of the enterprise performance measurement system required for the transformation to the lean enterprise and its management. Arguments are made from the ...

  14. Undulator Long Coil Measurement System Tests

    SciTech Connect (OSTI)

    Wolf, Zachary; Levashov, Yurii; /SLAC; ,

    2010-11-24T23:59:59.000Z

    The first and second field integrals in the LCLS undulators must be below a specified limit. To accurately measure the field integrals, a long coil system is used. This note describes a set of tests which were used to check the performance of the long coil system. A long coil system was constructed to measure the first and second field integrals of the LCLS undulators. The long coil measurements of the background fields were compared to field integrals obtained by sampling the background fields and numerically calculating the integrals. This test showed that the long coil has the sensitivity required to measure at the levels specified for the field integrals. Tests were also performed by making long coil measurements of short magnets of known strength placed at various positions The long coil measurements agreed with the known field integrals obtained by independent measurements and calculation. Our tests showed that the long coil measurements are a valid way to determine whether the LCLS undulator field integrals are below the specified limits.

  15. Torsional ultrasonic wave based level measurement system

    DOE Patents [OSTI]

    Holcomb, David E. (Oak Ridge, TN); Kisner, Roger A. (Knoxville, TN)

    2012-07-10T23:59:59.000Z

    A level measurement system suitable for use in a high temperature and pressure environment to measure the level of coolant fluid within the environment, the system including a volume of coolant fluid located in a coolant region of the high temperature and pressure environment and having a level therein; an ultrasonic waveguide blade that is positioned within the desired coolant region of the high temperature and pressure environment; a magnetostrictive electrical assembly located within the high temperature and pressure environment and configured to operate in the environment and cooperate with the waveguide blade to launch and receive ultrasonic waves; and an external signal processing system located outside of the high temperature and pressure environment and configured for communicating with the electrical assembly located within the high temperature and pressure environment.

  16. Automated Measurement and Signaling Systems for the Transactional...

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

    Measurement and Signaling Systems for the Transactional Network Automated Measurement and Signaling Systems for the Transactional Network The Transactional Network Project is a...

  17. Eddy Correlation Flux Measurement System (ECOR) Handbook

    SciTech Connect (OSTI)

    Cook, DR

    2011-01-31T23:59:59.000Z

    The eddy correlation (ECOR) flux measurement system provides in situ, half-hour measurements of the surface turbulent fluxes of momentum, sensible heat, latent heat, and carbon dioxide (CO2) (and methane at one Southern Great Plains extended facility (SGP EF) and the North Slope of Alaska Central Facility (NSA CF). The fluxes are obtained with the eddy covariance technique, which involves correlation of the vertical wind component with the horizontal wind component, the air temperature, the water vapor density, and the CO2 concentration.

  18. An aerial radiological survey of the Paducah Gaseous Diffusion Plant and surrounding area, Paducah, Kentucky

    SciTech Connect (OSTI)

    Not Available

    1992-11-01T23:59:59.000Z

    An aerial radiological survey of the Paducah Gaseous Diffusion Plant (PGDP) and surrounding area in Paducah, Kentucky, was conducted during May 15--25, 1990. The purpose of the survey was to measure and document the terrestrial radiological environment at the PGDP and surrounding area for use in effective environmental management and emergency response planning. The aerial survey was flown at an altitude of 61 meters (200 feet) along a series of parallel lines 107 meters (350 feet) apart. The survey encompassed an area of 62 square kilometers (24 square miles), bordered on the north by the Ohio River. The results of the aerial survey are reported as inferred exposure rates at 1 meter above ground level in the form of a gamma radiation contour map. Typical background exposure rates were found to vary from 5 to 12 microroentgens per hour ([mu]R/h). Protactinium-234m, a radioisotope indicative of uranium-238, was detected at several facilities at the PGDR. In support of the aerial survey, ground-based exposure rate and soil sample measurements were obtained at several sites within the survey perimeter. The results of the aerial and ground-based measurements were found to agree within [plus minus]15%.

  19. Fiberoptic probe and system for spectral measurements

    DOE Patents [OSTI]

    Dai, S.; Young, J.P.

    1998-10-13T23:59:59.000Z

    A fused fiberoptic probe, a system, method and embodiments thereof for conducting spectral measurements are disclosed. The fused fiberoptic probe comprises a probe tip having a specific geometrical configuration, an exciting optical fiber and at least one collection optical fiber fused within a housing, preferably silica. The specific geometrical configurations in which the probe tip can be shaped include a slanted probe tip with an angle greater than 0{degree}, an inverted cone-shaped probe tip, and a lens head. 12 figs.

  20. Optical steam quality measurement system and method

    DOE Patents [OSTI]

    Davidson, James R.; Partin, Judy K.

    2006-04-25T23:59:59.000Z

    An optical measurement system is presented that offers precision on-line monitoring of the quality of steam. Multiple wavelengths of radiant energy are passed through the steam from an emitter to a detector. By comparing the amount of radiant energy absorbed by the flow of steam for each wavelength, a highly accurate measurement of the steam quality can be determined on a continuous basis in real-time. In an embodiment of the present invention, the emitter, comprises three separate radiant energy sources for transmitting specific wavelengths of radiant energy through the steam. In a further embodiment, the wavelengths of radiant energy are combined into a single beam of radiant energy for transmission through the steam using time or wavelength division multiplexing. In yet a further embodiment, the single beam of radiant energy is transmitted using specialized optical elements.

  1. Robust trajectory planning for unmanned aerial vehicles in uncertain environments

    E-Print Network [OSTI]

    Luders, Brandon (Brandon Douglas)

    2008-01-01T23:59:59.000Z

    As unmanned aerial vehicles (UAVs) take on more prominent roles in aerial missions, it becomes necessary to increase the level of autonomy available to them within the mission planner. In order to complete realistic mission ...

  2. Material permeance measurement system and method

    DOE Patents [OSTI]

    Hallman, Jr., Russell Louis (Knoxville, TN); Renner, Michael John (Oak Ridge, TN)

    2012-05-08T23:59:59.000Z

    A system for measuring the permeance of a material. The permeability of the material may also be derived. The system provides a liquid or high concentration fluid bath on one side of a material test sample, and a gas flow across the opposing side of the material test sample. The mass flow rate of permeated fluid as a fraction of the combined mass flow rate of gas and permeated fluid is used to calculate the permeance of the material. The material test sample may be a sheet, a tube, or a solid shape. Operational test conditions may be varied, including concentration of the fluid, temperature of the fluid, strain profile of the material test sample, and differential pressure across the material test sample.

  3. Fluid permeability measurement system and method

    DOE Patents [OSTI]

    Hallman, Jr., Russell Louis (Knoxville, TN); Renner, Michael John (Oak Ridge, TN)

    2008-02-05T23:59:59.000Z

    A system for measuring the permeance of a material. The permeability of the material may also be derived. The system provides a liquid or high concentration fluid bath on one side of a material test sample, and a gas flow across the opposing side of the material test sample. The mass flow rate of permeated fluid as a fraction of the combined mass flow rate of gas and permeated fluid is used to calculate the permeance of the material. The material test sample may be a sheet, a tube, or a solid shape. Operational test conditions may be varied, including concentration of the fluid, temperature of the fluid, strain profile of the material test sample, and differential pressure across the material test sample.

  4. Method of measurement in biological systems

    DOE Patents [OSTI]

    Turteltaub, K.W.; Vogel, J.S.; Felton, J.S.; Gledhill, B.L.: Davis, J.C.; Stanker, L.H.

    1993-05-11T23:59:59.000Z

    A method is disclosed of quantifying molecules in biological substances, comprising: selecting a biological host in which radioisotopes are present in concentrations equal to or less than those in the ambient biosphere; preparing a long-lived radioisotope labeled reactive chemical specie; administering the chemical specie to the biological host in doses sufficiently low to avoid significant overt damage to the biological system; allowing a period of time to elapse sufficient for dissemination and interaction of the chemical specie with the host throughout the biological system of the host; isolating a reacted fraction of the biological substance from the host in a manner sufficient to avoid contamination of the substance from extraneous sources; converting the fraction of biological substance by suitable means to a material which efficiently produces charged ions in at least one of several possible ion sources without introduction of significant isotopic fractionation; and measuring the radioisotope concentration in the material by means of direct isotopic counting.

  5. A new magnetic field integral measurement system

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

    measurements. b. Second field integral (horizontal and vertical) measurements. c. Multipole components of first field integral measurements. 2. Translation Coil a. Multipole...

  6. Enterprise performance measurement system : metric design framework and tools

    E-Print Network [OSTI]

    Teo, Kai Siang

    2013-01-01T23:59:59.000Z

    Existing metric selection methodologies and performance measurement frameworks provide practicing managers with good checklists and tools to evaluate and design their enterprise performance measurement systems (EPMS) and ...

  7. Modeling a Prototype Optical Collision Avoidance Sensor For Unmanned Aerial Vehicles

    E-Print Network [OSTI]

    Hornsey, Richard

    Modeling a Prototype Optical Collision Avoidance Sensor For Unmanned Aerial Vehicles Cyrus Minwalla) are essential in controlled airspace under visual flight rules (VFR). A prototype optical sensor accomplishes and evaluation of the prototype sensor are presented here, as are preliminary measurements to clarify the roles

  8. Pumping System Measurements To Estimate Energy Savings: Why and How

    E-Print Network [OSTI]

    Casada, D.

    2007-01-01T23:59:59.000Z

    Measuring performance parameters (flow rate, pressures, and power) for existing systems is essential to understanding how both the pump(s) and system are actually performing. Examples of reasons why actual measurements are critical and practical...

  9. Method of measurement in biological systems

    DOE Patents [OSTI]

    Turteltaub, K.W.; Vogel, J.S.; Felton, J.S.; Gledhill, B.L.; Davis, J.C.

    1994-12-27T23:59:59.000Z

    Disclosed is a method of quantifying molecules in biological substances comprising: a. selecting a biological host in which radioisotopes are present in concentrations equal to or less than those in the ambient biosphere, b. preparing a long-lived radioisotope labeled reactive chemical specie, c. administering the chemical specie to the biological host in doses sufficiently low to avoid significant overt damage to the biological system, d. allowing a period of time to elapse sufficient for dissemination and interaction of the chemical specie with the host throughout the biological system of the host, e. isolating a reacted fraction of the biological substance from the host in a manner sufficient to avoid contamination of the substance from extraneous sources, f. converting the fraction of biological substance by suitable means to a material which efficiently produces charged ions in at least one of several possible ion sources without introduction of significant isotopic fractionation, and, g. measuring the radioisotope concentration in the material by means of direct isotopic counting. 5 figures.

  10. An aerial radiological survey of the Salmon Site and surrounding area, Lamar County, Mississippi

    SciTech Connect (OSTI)

    Kernan, W.J.

    1994-05-01T23:59:59.000Z

    An aerial radiological survey was conducted over the former Atomic Energy Commission Test Site at the Salmon Site and surrounding area between April 20 and May 1, 1992. The Salmon Site is located in Lamar County, Mississippi, approximately 20 miles southwest of Hattiesburg, Mississippi. The purpose of the survey was to measure and document the gamma-ray environment of the Salmon Site and adjacent lands. A contour map showing gamma radiation exposure rates at 1 meter above ground level was constructed from the aerial data and overlaid on a rectified aerial photograph of the area. The exposure rates within the area are between 5 and 8 {mu}R/h. The reported exposure rates include a cosmic-ray contribution estimated to be 3.7 {mu}R/h. Radionuclide assays of soil samples and in situ measurements, taken with a pressurized ion chamber and a high-purity germanium detector, were obtained at 4 locations within the survey boundaries. These measurements were taken in support of and are in agreement with the aerial data.

  11. A Practical Visual Servo Control for an Unmanned Aerial N. GUENARD, T. HAMEL, and R. MAHONY

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    with respect to the robot and results in a Cartesian motion planning problem. This approach requires dynamics of the system using control Lyapunov function design techniques. Experimental results on a quad and performance of the proposed control strategy. Keywords: Image based visual servo (IBVS), Aerial Robotic

  12. Calibration and Validation of Measurement System

    E-Print Network [OSTI]

    +45 98 14 25 55 Hydraulics and Coastal Engineering No. 2 Calibration and Validation of Measurement ......................................................................................................................................11 9. SIPHON TURBINE ......................................................................................................................................12 10. DUMMY TURBINES

  13. Measuring Residential Ventilation System Airflows: Part 2 -Field

    E-Print Network [OSTI]

    1 Measuring Residential Ventilation System Airflows: Part 2 - Field Evaluation of Airflow Meter Residential Ventilation System Airflows: Part 2 - Field Evaluation of Airflow Meter Devices and System Flow, mechanical ventilation, measurement, ASHRAE 62.2, flow hood ABSTRACT The 2008 California State Energy Code

  14. Measuring Advances in HVAC Distribution System Design

    SciTech Connect (OSTI)

    Franconi, E.

    1998-05-01T23:59:59.000Z

    Substantial commercial building energy savings have been achieved by improving the performance of the HV AC distribution system. The energy savings result from distribution system design improvements, advanced control capabilities, and use of variable-speed motors. Yet, much of the commercial building stock remains equipped with inefficient systems. Contributing to this is the absence of a definition for distribution system efficiency as well as the analysis methods for quantifying performance. This research investigates the application of performance indices to assess design advancements in commercial building thermal distribution systems. The index definitions are based on a first and second law of thermodynamics analysis of the system. The second law or availability analysis enables the determination of the true efficiency of the system. Availability analysis is a convenient way to make system efficiency comparisons since performance is evaluated relative to an ideal process. A TRNSYS simulation model is developed to analyze the performance of two distribution system types, a constant air volume system and a variable air volume system, that serve one floor of a large office building. Performance indices are calculated using the simulation results to compare the performance of the two systems types in several locations. Changes in index values are compared to changes in plant energy, costs, and carbon emissions to explore the ability of the indices to estimate these quantities.

  15. Aerial Thermal Infrared Mapping Of The Waimangu-Waiotapu Geothermal...

    Open Energy Info (EERE)

    Published Journal International Journal of Rock Mechanics and Mining Science & Geomechanics Abstracts, 1995 DOI 10.10160148-9062(95)99556-D Citation . 1995. Aerial Thermal...

  16. aerial surveys give: Topics by E-print Network

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

    were sighted 3 Techniques and Technology Article Aerial Surveys for Estimating Wild Turkey Abundance in Environmental Sciences and Ecology Websites Summary: Techniques and...

  17. aerial surveying: Topics by E-print Network

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

    were sighted 3 Techniques and Technology Article Aerial Surveys for Estimating Wild Turkey Abundance in Environmental Sciences and Ecology Websites Summary: Techniques and...

  18. aerial radiation survey: Topics by E-print Network

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

    were sighted 3 Techniques and Technology Article Aerial Surveys for Estimating Wild Turkey Abundance in Environmental Sciences and Ecology Websites Summary: Techniques and...

  19. aerial photograph study: Topics by E-print Network

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

    BUILDINGS IN AERIAL IMAGES Samuel Vinson Mathematics Websites Summary: an exhaustive process for assisting buildings extraction out of the Digital Elevation Model (DEM...

  20. aerial photographic interpretation: Topics by E-print Network

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

    BUILDINGS IN AERIAL IMAGES Samuel Vinson Mathematics Websites Summary: an exhaustive process for assisting buildings extraction out of the Digital Elevation Model (DEM...

  1. Aerial Photography At Blue Mountain Geothermal Area (Fairbank...

    Open Energy Info (EERE)

    Exploration Activity: Aerial Photography At Blue Mountain Geothermal Area (Fairbank Engineering Ltd, 2003) Exploration Activity Details Location Blue Mountain Geothermal Area...

  2. aerial spectrometric survey: Topics by E-print Network

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

    strategies to missionflight planning for aerial vehicles engaged in planetary exploration. Two candidate concepts based on natural resource utilization and searching...

  3. Aerial Photography At Roosevelt Hot Springs Geothermal Area ...

    Open Energy Info (EERE)

    Exploration Technique Aerial Photography Activity Date 1975 - 1975 Usefulness useful DOE-funding Unknown Exploration Basis Petersen, C.A. Masters Thesis at the University of Utah...

  4. Aerial Photography At Nevada Test And Training Range Area (Sabin...

    Open Energy Info (EERE)

    GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Nevada Test And Training Range Area (Sabin, Et Al., 2004) Exploration Activity Details Location...

  5. USING PERFORMANCE MEASUREMENTS TO EVALUATE AND STRENGTHEN INFORMATION SYSTEM SECURITY

    E-Print Network [OSTI]

    USING PERFORMANCE MEASUREMENTS TO EVALUATE AND STRENGTHEN INFORMATION SYSTEM SECURITY Shirley Radack, Editor Computer Security Division Information Technology Laboratory National Institute about the security of information systems for the decision makers of organizations. When organizations

  6. Expert system for analyzing eddy current measurements

    DOE Patents [OSTI]

    Levy, Arthur J. (Schenectady, NY); Oppenlander, Jane E. (Scotia, NY); Brudnoy, David M. (Albany, NY); Englund, James M. (Clifton Park, NY); Loomis, Kent C. (Clifton Park, NY)

    1994-01-01T23:59:59.000Z

    A method and apparatus (called DODGER) analyzes eddy current data for heat exchanger tubes or any other metallic object. DODGER uses an expert system to analyze eddy current data by reasoning with uncertainty and pattern recognition. The expert system permits DODGER to analyze eddy current data intelligently, and obviate operator uncertainty by analyzing the data in a uniform and consistent manner.

  7. Performance Evaluation of Phasor Measurement Systems

    SciTech Connect (OSTI)

    Huang, Zhenyu; Kasztenny, Bogdan; Madani, Vahid; Martin, Kenneth E.; Meliopoulos, Sakis; Novosel, Damir; Stenbakken, Jerry

    2008-07-20T23:59:59.000Z

    After two decades of phasor network deployment, phasor measurements are now available at many major substations and power plants. The North American SynchroPhasor Initiative (NASPI), supported by both the US Department of Energy and the North American Electricity Reliability Council (NERC), provides a forum to facilitate the efforts in phasor technology in North America. Phasor applications have been explored and some are in today’s utility practice. IEEE C37.118 Standard is a milestone in standardizing phasor measurements and defining performance requirements. To comply with IEEE C37.118 and to better understand the impact of phasor quality on applications, the NASPI Performance and Standards Task Team (PSTT) initiated and accomplished the development of two important documents to address characterization of PMUs and instrumentation channels, which leverage prior work (esp. in WECC) and international experience. This paper summarizes the accomplished PSTT work and presents the methods for phasor measurement evaluation.

  8. Automated Test Coverage Measurement for Reactor Protection System Software

    E-Print Network [OSTI]

    Automated Test Coverage Measurement for Reactor Protection System Software Implemented in Function in implementing safety critical systems such as nuclear reactor protection systems. We have defined new structural- ing a case study using test cases prepared by domain experts for reactor protection system software

  9. Sandia Energy - Wake Imaging Measurement System

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

    the flowfield. The objective of the project is to deploy the system at the Scaled Wind Farm Technology (SWiFT) facility to demonstrate the technology in a field...

  10. Acoustic Building Infiltration Measurement System (ABIMS) | Department...

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

    System (ABIMS) 1 of 4 ABIMS team member performs a microphone calibration. Image: Argonne National Laboratory 2 of 4 ABIMS team member fits an insert into the test chamber to...

  11. Crustal motion in Indonesia from Global Positioning System measurements

    E-Print Network [OSTI]

    McCaffrey, Robert

    Crustal motion in Indonesia from Global Positioning System measurements Y. Bock,1 L. Prawirodirdjo: crustal motion, Indonesia tectonics, GPS, current plate motions, Southeast Asia Citation: Bock, Y., L, Crustal motion in Indonesia from Global Positioning System measurements, J. Geophys. Res., 108(B8), 2367

  12. MEASUREMENT OF INTERFACIAL TENSION IN FLUID-FLUID SYSTEMS

    E-Print Network [OSTI]

    Loh, Watson

    MEASUREMENT OF INTERFACIAL TENSION IN FLUID-FLUID SYSTEMS J. Drelich Ch. Fang C.L. White Michigan been used to measure interfacial tensions between immisci- ble fluid phases. A recent monograph sources of information on the in- terfacial tension measurement methods include selected chapters in Refs

  13. E-Print Network 3.0 - all-electric unmanned aerial Sample Search...

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

    missile (SAM) site and unmanned aerial vehicles do not have collaborative capabilities... Automation in Unmanned Aerial Vehicle ... Source: Cummings, Mary "Missy" - Department of...

  14. A pumping system for measuring coastal diffusion coefficients 

    E-Print Network [OSTI]

    Bolen, Zane Kevin

    1980-01-01T23:59:59.000Z

    system was used to measure surface horizontal diffusion coefficients in the vicin- ity of the diffuser. These experiments were also used to develop tech- niques of underway sampling as well as measuring site specific horizon- tal diffusion... coefficients. Measurement of horizontal diffusion coef- ficients used a continuous point source of tracer material to produce a plume that could be profiled using the pumping system connected to a fluorometer. The resultant horizontal diffusion coefficients...

  15. aerial infrared surveys: Topics by E-print Network

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

    aerial infrared surveys 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 Aerial Survey of the Upper...

  16. Development of a Carbon Dioxide Monitoring Rotorcraft Unmanned Aerial Vehicle

    E-Print Network [OSTI]

    Zimmer, Uwe

    stage to prevent potential danger to workforce and material, and carbon capture and sequestration (CCSDevelopment of a Carbon Dioxide Monitoring Rotorcraft Unmanned Aerial Vehicle Florian Poppa and Uwe the development of a carbon dioxide (CO2) sensing rotorcraft unmanned aerial vehicle (RUAV) and the experiences

  17. Actor Positioning Based on Molecular Geometry in Aerial Sensor Networks

    E-Print Network [OSTI]

    Turgut, Damla

    as central data collectors, can improve network performance in terms of energy consumption or traffic load Florida Email: {miakbas,gsolmaz,turgut}@eecs.ucf.edu Abstract-- Advances in unmanned aerial vehicle (UAV the collected information and react accordingly. The recent advances in unmanned aerial vehicles (UAVs

  18. Design of a dual port volume measuring system

    SciTech Connect (OSTI)

    Klevgard, P.A.

    1990-09-01T23:59:59.000Z

    A volume measuring system is described which uses the ideal gas law and pressure measurements to determine an unknown vessel's volume when a gas expands into that vessel from a known volume. The design, the engineering principles, the calibration, and the accuracy of this computer-controlled system are all discussed. A set of electrical and mechanical drawings of the system is included. 3 refs., 6 figs.

  19. Thermal performance measurements of insulated roof systems

    SciTech Connect (OSTI)

    Courville, G.E.; Childs, K.W.; Walukas, D.J.; Childs, P.W.; Griggs, E.I.

    1985-01-01T23:59:59.000Z

    Oak Ridge National Laboratory has established a Roof Thermal Researcch Apparatus for carrying out thermal and hygric experiments on sections of low-sloped roofs. Test panels are exposed to a controlled temperature interior space and to the prevailing East Tennessee exterior environment. They are well instrumented and all data are stored and aided in the analysis by computer systems. Current experiments include studies of the effect of wet insulation on membrane temperature, thermal storage phenomena in built-up roof insulation, and the effects of varying surface reflectance on roof thermal performance.

  20. Feed rate measuring method and system

    DOE Patents [OSTI]

    Novak, James L. (Albuquerque, NM); Wiczer, James J. (Albuquerque, NM)

    1995-01-01T23:59:59.000Z

    A system and method are provided for establishing the feed rate of a workpiece along a feed path with respect to a machine device. First and second sensors each having first and second sensing electrodes which are electrically isolated from the workpiece are positioned above, and in proximity to the desired surfaces of the workpiece along a feed path. An electric field is developed between the first and second sensing electrodes of each sensor and capacitance signals are developed which are indicative of the contour of the workpiece. First and second image signals representative of the contour of the workpiece along the feed path are developed by an image processor. The time delay between corresponding portions of the first and second image signals are then used to determine the feed rate based upon the separation of the first and second sensors and the amount of time between corresponding portions of the first and second image signals.

  1. EA Systems Examples Induction and Recursion Length Measuring the Universe Analysis Number systems of different lengths,

    E-Print Network [OSTI]

    Forster, T.E.

    EA Systems Examples Induction and Recursion Length Measuring the Universe Analysis Number systems of Mathematics University of Bristol April 21, 2008 Richard.Pettigrew@bris.ac.uk Natural number systems and infinitesimal analysis #12;EA Systems Examples Induction and Recursion Length Measuring the Universe Analysis

  2. System design description for surface moisture measurement system (SMMS)

    SciTech Connect (OSTI)

    Vargo, G.F.

    1996-09-23T23:59:59.000Z

    The SMMS has been developed to measure moisture in the top few centimeters of tank waste. The SMMS development was initiated by the preliminary findings of SAR-033, and does not necessarily fulfill any established DQO. After the SAR-033 is released, if no significant changes are made, moisture measurements in the organic waste tanks will rapidly become a DQO. The SMMS was designed to be installed in any 4 inch or larger riser, and to allow maximum adjustability for riser lengths, and is used to deploy a sensor package on the waste surface within a 6 foot radius about the azimuth. The first sensor package will be a neutron probe.

  3. Coherent versus measurement feedback: Linear systems theory for quantum information

    E-Print Network [OSTI]

    Naoki Yamamoto

    2014-10-10T23:59:59.000Z

    To control a quantum system via feedback, we generally have two options in choosing control scheme. One is the coherent feedback, which feeds the output field of the system, through a fully quantum device, back to manipulate the system without involving any measurement process. The other one is the measurement-based feedback, which measures the output field and performs a real-time manipulation on the system based on the measurement results. Both schemes have advantages/disadvantages, depending on the system and the control goal, hence their comparison in several situation is important. This paper considers a general open linear quantum system with the following specific control goals; back-action evasion (BAE), generation of a quantum non-demolished (QND) variable, and generation of a decoherence-free subsystem (DFS), all of which have important roles in quantum information science. Then some no-go theorems are proven, clarifying that those goals cannot be achieved by any measurement-based feedback control. On the other hand it is shown that, for each control goal, there exists a coherent feedback controller accomplishing the task. The key idea to obtain all the results is system theoretic characterizations of BAE, QND, and DFS in terms of controllability and observability properties or transfer functions of linear systems, which are consistent with their standard definitions.

  4. System and method measuring fluid flow in a conduit

    DOE Patents [OSTI]

    Ortiz, Marcos German (Idaho Falls, ID); Kidd, Terrel G. (Blackfoot, ID)

    1999-01-01T23:59:59.000Z

    A system for measuring fluid mass flow in a conduit in which there exists a pressure differential in the fluid between at least two spaced-apart locations in the conduit. The system includes a first pressure transducer disposed in the side of the conduit at a first location for measuring pressure of fluid at that location, a second or more pressure transducers disposed in the side of the conduit at a second location, for making multiple measurements of pressure of fluid in the conduit at that location, and a computer for computing the average pressure of the multiple measurements at the second location and for computing flow rate of fluid in the conduit from the pressure measurement by the first pressure transducer and from the average pressure calculation of the multiple measurements.

  5. Inertial measurement with trapped particles: A microdynamical system

    SciTech Connect (OSTI)

    Post, E. Rehmi; Popescu, George A.; Gershenfeld, Neil [Center for Bits and Atoms, Massachusetts Institute of Technology, 20 Ames Street, Cambridge, Massachusetts 02139 (United States)

    2010-04-05T23:59:59.000Z

    We describe an inertial measurement device based on an electrodynamically trapped proof mass. Mechanical constraints are replaced by guiding fields, permitting the trap stiffness to be tuned dynamically. Optical readout of the proof mass motion provides a measurement of acceleration and rotation, resulting in an integrated six degree of freedom inertial measurement device. We demonstrate such a device - constructed without microfabrication - with sensitivity comparable to that of commercial microelectromechanical systems technology and show how trapping parameters may be adjusted to increase dynamic range.

  6. Implementation and Rejection of Industrial Steam System Energy Efficiency Measures

    SciTech Connect (OSTI)

    Therkelesen, Peter; McKane, Aimee

    2013-05-01T23:59:59.000Z

    Steam systems consume approximately one third of energy applied at U.S. industrial facilities. To reduce energy consumption, steam system energy assessments have been conducted on a wide range of industry types over the course of five years through the Energy Savings Assessment (ESA) program administered by the U.S. Department of Energy (U.S. DOE). ESA energy assessments result in energy efficiency measure recommendations that are given potential energy and energy cost savings and potential implementation cost values. Saving and cost metrics that measure the impact recommended measures will have at facilities, described as percentages of facility baseline energy and energy cost, are developed from ESA data and used in analyses. Developed savings and cost metrics are examined along with implementation and rejection rates of recommended steam system energy efficiency measures. Based on analyses, implementation of steam system energy efficiency measures is driven primarily by cost metrics: payback period and measure implementation cost as a percentage of facility baseline energy cost (implementation cost percentage). Stated reasons for rejecting recommended measures are primarily based upon economic concerns. Additionally, implementation rates of measures are not only functions of savings and cost metrics, but time as well.

  7. Measuring Residential Ventilation System Airflows: Part 1 Laboratory

    E-Print Network [OSTI]

    1 Measuring Residential Ventilation System Airflows: Part 1 ­ Laboratory Evaluation of Airflow: residential, mechanical ventilation, measurement, ASHRAE 62.2, flow hood ABSTRACT Building codes increasingly require tighter homes and mechanical ventilation per ASHRAE Standard 62.2. These ventilation flows must

  8. Measuring Availability in the Domain Name System Casey Deccio

    E-Print Network [OSTI]

    California at Davis, University of

    Measuring Availability in the Domain Name System Casey Deccio Sandia National Laboratories ctdecci to Inter- net functionality. The availability of a domain name refers to its ability to be resolved correctly. We develop a model for server dependencies that is used as a basis for measuring availability. We

  9. System Temperature Measurement of RPA Antenna 1: 30 March 2001

    E-Print Network [OSTI]

    Backer, Don

    System Temperature Measurement of RPA Antenna 1: 30 March 2001 Jon Swift Introduction I followed a feed temperature of 15K Figure 1: Time series of measurements made on the RPA antenna 1. ``Hot'' is the ambient temperature and ``Cold'' is the temperature of LN2. Other relevant information is shown in the top

  10. Review of Prior U.S. Attribute Measurement Systems

    SciTech Connect (OSTI)

    White, G K

    2012-07-06T23:59:59.000Z

    Attribute Measurement Systems have been developed and demonstrated several times in the United States over the last decade or so; under the Trilateral Initiative (1996-2002), FMTTD (Fissile Material Transparency Technology Demonstration, 2000), and NG-AMS (Next Generation Attribute Measurement System, 2005-2008). Each Attribute Measurement System has contributed to the growing body of knowledge regarding the use of such systems in warhead dismantlement and other Arms Control scenarios. The Trilateral Initiative, besides developing prototype hardware/software, introduced the topic to the international community. The 'trilateral' parties included the United States, the Russian Federation, and the International Atomic Energy Agency (IAEA). With the participation of a Russian delegation, the FMTTD demonstrated that measurements behind an information barrier are feasible while meeting host party security requirements. The NG-AMS system explored the consequences of maximizing the use of Commercial off the Shelf (COTS) equipment, which made construction easier, but authentication harder. The 3rd Generation Attribute Measurement System (3G-AMS) will further the scope of previous systems by including additional attributes and more rigor in authentication.

  11. MEASUREMENT, FILTERING AND CONTROL IN QUANTUM OPEN DYNAMICAL SYSTEMS.

    E-Print Network [OSTI]

    Belavkin, Viacheslav P.

    Markovian dynam- ical system with a quantum linear transmission line is studied. The optimal quantum multi-stage decision rule consisting of the classical linear optimal control strategy and quantum optimal ...lteringMEASUREMENT, FILTERING AND CONTROL IN QUANTUM OPEN DYNAMICAL SYSTEMS. V. P. BELAVKIN Abstract

  12. Optimal Measurement and Control in Quantum Dynamical Systems.

    E-Print Network [OSTI]

    Belavkin, Viacheslav P.

    Optimal Measurement and Control in Quantum Dynamical Systems. V P Belavkin Institute of Physics-dimensional linear Markovian dynamical system with a quantum linear transmission line is studied. The optimal quantum multi-stage decision rule consisting of the classical linear optimal control strategy and quantum

  13. : Measurement of Battery Capacity in Mobile Robot Systems

    E-Print Network [OSTI]

    Breu, Ruth

    . These enhancements pose demanding operation conditions on the battery, emphasizing the importance of this com- ponentRoBM2 : Measurement of Battery Capacity in Mobile Robot Systems Nestor Lucas1 , Cosmin Codrea1. With battery driven robot systems performing very sophisti- cated tasks, increasing demands on the power supply

  14. An Electromotive Force Measurement System for Alloy Fuels

    SciTech Connect (OSTI)

    Changhu Xing; Colby Jensen; Heng Ban; Robert Mariani; J. Rory Kennedy

    2010-11-01T23:59:59.000Z

    The development of advanced nuclear fuels requires a better understanding of the transmutation and micro-structural evolution of the materials. Alloy fuels have the advantage of high thermal conductivity and improved characteristics in fuel-cladding chemical reaction. However, information on thermodynamic and thermophysical properties is limited. The objective of this project is to design and build an experimental system to measure the thermodynamic properties of solid materials from which the understanding of their phase change can be determined. The apparatus was used to measure the electromotive force (EMF) of several materials in order to calibrate and test the system. The EMF of chromel was measured from 100°C to 800°C and compared with theoretical values. Additionally, the EMF measurement of Ni-Fe alloy was performed and compared with the Ni-Fe phase diagram. The prototype system is to be modified eventually and used in a radioactive hot-cell in the future.

  15. A system for interpretation of blast furnace stockrod measurements

    SciTech Connect (OSTI)

    Hinnelae, J.; Saxen, H. [Aabo Akademi Univ. (Finland). Dept. of Chemical Engineering

    1997-12-31T23:59:59.000Z

    A system for intelligent monitoring and interpretation of signals from blast furnace stockrods is presented. The system visualizes the measurements and estimates the local burden layer thickness (under the rods) after every dump. Furthermore, it analyzes the burden descent rate to distinguish between slips, hangings, normal descent and peaks, etc., and also combines the stockrod information with findings of temperature measurements from an above-burden probe. The preprocessing of the signals and some features of the system, which is under development, are treated in this paper.

  16. aerial radiation monitoring: Topics by E-print Network

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

    measurement system, in-core neutron monitor, medical radiation diagnostic device, nondestructive inspection device, environmental radiation monitoring, cosmic-ray measurement,...

  17. aerial surveying radiation monitoring: Topics by E-print Network

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

    measurement system, in-core neutron monitor, medical radiation diagnostic device, nondestructive inspection device, environmental radiation monitoring, cosmic-ray measurement,...

  18. Power-Efficient Radio Resource Allocation for Low-Medium-Altitude Aerial Platform Based TD-LTE

    E-Print Network [OSTI]

    Quartly, Graham

    in emergency scenarios, a low-medium-altitude aerial platform based time-division-duplex long term evolution. A similar scenario occurred after the recent tsunami near Sendai, Japan. Since then lowMAX or combinations of them. The time-division-duplex long term evolution (TD-LTE) system is considered as one

  19. Visibility maximization with unmanned aerial vehicles in complex environments

    E-Print Network [OSTI]

    Lee, Kenneth (Kenneth King Ho)

    2010-01-01T23:59:59.000Z

    Unmanned aerial vehicles are used extensively in persistent surveillance, search and track, border patrol, and environment monitoring applications. Each of these applications requires the obtainment of information using a ...

  20. Motion Planning for Unmanned Aerial Vehicles with Resource Constraints 

    E-Print Network [OSTI]

    Sundar, Kaarthik

    2012-10-19T23:59:59.000Z

    Small Unmanned Aerial Vehicles (UAVs) are currently used in several surveillance applications to monitor a set of targets and collect relevant data. One of the main constraints that characterize a small UAV is the maximum amount of fuel the vehicle...

  1. Motion Planning for Unmanned Aerial Vehicles with Resource Constraints

    E-Print Network [OSTI]

    Sundar, Kaarthik

    2012-10-19T23:59:59.000Z

    Small Unmanned Aerial Vehicles (UAVs) are currently used in several surveillance applications to monitor a set of targets and collect relevant data. One of the main constraints that characterize a small UAV is the maximum amount of fuel the vehicle...

  2. VALIDATION OF A THERMAL CONDUCTIVITY MEASUREMENT SYSTEM FOR FUEL COMPACTS

    SciTech Connect (OSTI)

    Jeff Phillips; Colby Jensen; Changhu Xing; Heng Ban

    2011-03-01T23:59:59.000Z

    A high temperature guarded-comparative-longitudinal heat flow measurement system has been built to measure the thermal conductivity of a composite nuclear fuel compact. It is a steady-state measurement device designed to operate over a temperature range of 300 K to 1200 K. No existing apparatus is currently available for obtaining the thermal conductivity of the composite fuel in a non-destructive manner due to the compact’s unique geometry and composite nature. The current system design has been adapted from ASTM E 1225. As a way to simplify the design and operation of the system, it uses a unique radiative heat sink to conduct heat away from the sample column. A finite element analysis was performed on the measurement system to analyze the associated error for various operating conditions. Optimal operational conditions have been discovered through this analysis and results are presented. Several materials have been measured by the system and results are presented for stainless steel 304, inconel 625, and 99.95% pure iron covering a range of thermal conductivities of 10 W/m*K to 70 W/m*K. A comparison of the results has been made to data from existing literature.

  3. Measured Air Distribution Effectiveness for Residential Mechanical Ventilation Systems

    SciTech Connect (OSTI)

    Sherman, Max; Sherman, Max H.; Walker, Iain S.

    2008-05-01T23:59:59.000Z

    The purpose of ventilation is dilute or remove indoor contaminants that an occupant is exposed to. In a multi-zone environment such as a house, there will be different dilution rates and different source strengths in every zone. Most US homes have central HVAC systems, which tend to mix the air thus the indoor conditions between zones. Different types of ventilation systems will provide different amounts of exposure depending on the effectiveness of their air distribution systems and the location of sources and occupants. This paper will report on field measurements using a unique multi-tracer measurement system that has the capacity to measure not only the flow of outdoor air to each zone, but zone-to-zone transport. The paper will derive seven different metrics for the evaluation of air distribution. Measured data from two homes with different levels of natural infiltration will be used to evaluate these metrics for three different ASHRAE Standard 62.2 compliant ventilation systems. Such information can be used to determine the effectiveness of different systems so that appropriate adjustments can be made in residential ventilation standards such as ASHRAE Standard 62.2.

  4. An optical water vapor sensor for unmanned aerial vehicles

    SciTech Connect (OSTI)

    Timothy A. Berkoff; Paul L. Kebabian; Robert A. McClatchy; Charles E. Kolb; Andrew Freedman

    1998-12-01T23:59:59.000Z

    The water vapor sensor developed by Aerodyne Research, based on the optical absorption of light at {approximately}935 nm, has been successfully demonstrated on board the Pacific Northwest National Laboratory's Gulfstream-1 research aircraft during the Department of Energy's ARM Intensive Operations Period in August 1998. Data taken during this field campaign show excellent agreement with a chilled mirror and Lyman-alpha hygrometers and measurements confirm the ability to measure rapid, absolute water vapor fluctuations with a high degree of instrument stability and accuracy, with a noise level as low 10 ppmv (1 Hz measurement bandwidth). The construction of this small, lightweight sensor contains several unique elements which result in several significant advantages when compared to other techniques. First, the low power consumption Argon discharge lamp provides an optical beam at a fixed wavelength without a need for temperature or precision current control. The multi-pass absorption cell developed for this instrument provides a compact, low cost method that can survive deployment in the field. Fiber-optic cables, which are used to convey to light between the absorption cell, light source, and detection modules enable remote placement of the absorption cell from the opto-electronics module. Finally, the sensor does not use any moving parts which removes a significant source of potential malfunction. The result is an instrument which maintained its calibration throughout the field measurement campaign, and was not affected by high vibration and large uncontrolled temperature excursions. We believe that the development of an accurate, fast response water vapor monitor described in this report will open up new avenues of aerial-vehicle-based atmospheric research which have been relatively unexplored due to the lack of suitable low-cost, light-weight instrumentation.

  5. Floating data acquisition system for microwave calorimeter measurements on MTX

    SciTech Connect (OSTI)

    Sewall, N.R.; Meassick, S. (Lawrence Livermore National Lab., CA (USA))

    1989-09-13T23:59:59.000Z

    A microwave calorimeter has been designed for making 140-GHz absorption measurements on the MTX. Measurement of the intensity and spatial distribution of the FEL-generated microwave beam on the inner wall will indicate the absorption characteristics of the plasma when heated with a 140 GHz FEL pulse. The calorimeter works by monitoring changes of temperature in silicon carbide tiles located on the inner wall of the tokamak. Thermistors are used to measure the temperature of each tile. The tiles are located inside the tokamak about 1 cm outside of the limiter radius at machine potential. The success of this measurement depends on our ability to float the data acquisition system near machine potential and isolate it from the rest of the vault ground system. Our data acquisition system has 48 channels of thermistor signal conditioning, a multiplexer and digitizer section, a serial data formatter, and a fiber-optic transmitter to send the data out. Additionally, we bring timing signals to the interface through optical fibers to tell it when to begin measurement, while maintaining isolation. The receiver is an HP 200 series computer with a serial data interface; the computer provides storage and local display for the shot temperature profile. Additionally, the computer provides temporary storage of the data until it can be passed to a shared resource management system for archiving. 2 refs., 6 figs.

  6. Application of Phosphor Thermometry to a Galvanneal Temperature Measurement System

    SciTech Connect (OSTI)

    Beshears, D.L.; Allison, S.W.; Andrews, W.H.; Cates, M.R.; Grann, E.B.; Manges, W.W.; McIntyre, T.J.; Scudiere, M.B.; Simpson, M.L.; Childs, R.M.; Vehec, J.; Zhang, L.

    1999-06-01T23:59:59.000Z

    The Galvanneal Temperature Measurement System (GTMS) was developed for the American Iron and Steel Institute by the Oak Ridge National Laboratory through a partnership with the National Steel Midwest Division in Portage, Indiana. The GTMS provides crucial on-line thermal process control information during the manufacturing of galvanneal steel. The system has been used with the induction furnaces to measure temperatures ranging from 840 to 1292 F with an accuracy of better than {+-}9 F. The GTMS provides accurate, reliable temperature information thus ensuring a high quality product, reducing waste, and saving energy. The production of uniform, high-quality galvanneal steel is only possible through strict temperature control.

  7. Development of crawler type device using new measuring system

    SciTech Connect (OSTI)

    Maruyama, T.; Sasaki, T.; Yagi, T. [Ishikawajima-Harima Heavy Industries Co., Ltd., Yokohama (Japan)

    1995-08-01T23:59:59.000Z

    This paper reports the development and field application of a new device which examine shell to shell weld joints of RPV. In a BWR type nuclear power plant, there is narrow space around the Reactor Pressure Vessel (RPV) because RPV is enclosed by the Reactor Shield Wall (RSW) and thermal insulations. The developed device is characterized by a new position measuring system and magnet wheels for driving. The new position measuring system uses laser beam and ultrasonic wave. The magnet wheels make the device travel freely in the narrow space between RPV and insulation. This device is tested on mock-ups and applied examination of RPVs to verify field applicability.

  8. Application of phosphor thermometry to a Galvanneal Temperature Measurement System

    SciTech Connect (OSTI)

    Allison, S.W.; Andrews, W.H.; Beshears, D.L.; Cates, M.R.; Childs, R.M.; Grann, E.B.; Manges, W.W.; McIntyre, T.J.; Scudiere, M.B.; Simpson, M.L.

    1999-08-22T23:59:59.000Z

    The Galvanneal Temperature Measurement System (GTMS) was developed for the American Iron and Steel Institute by the Oak Ridge National Laboratory through a partnership with the National Steel Midwest Division in Portage, Indiana. The GTMS provides crucial on-line thermal process control information during the manufacturing of galvanneal steel. The system has been used with the induction furnaces to measure temperatures ranging from 450 to 700 degrees C with an accuracy of better than +/-5 Degrees C. The GTMS provides accurate, reliable temperature information thus ensuring a high quality product, reducing waste, and saving energy. The production of uniform, high-quality galvanneal steel is only possible through strict temperature control.

  9. Electron cyclotron beam measurement system in the Large Helical Device

    SciTech Connect (OSTI)

    Kamio, S., E-mail: kamio@nifs.ac.jp; Takahashi, H.; Kubo, S.; Shimozuma, T.; Yoshimura, Y.; Igami, H.; Ito, S.; Kobayashi, S.; Mizuno, Y.; Okada, K.; Osakabe, M.; Mutoh, T. [National Institute for Fusion Science, Toki 509-5292 (Japan)

    2014-11-15T23:59:59.000Z

    In order to evaluate the electron cyclotron (EC) heating power inside the Large Helical Device vacuum vessel and to investigate the physics of the interaction between the EC beam and the plasma, a direct measurement system for the EC beam transmitted through the plasma column was developed. The system consists of an EC beam target plate, which is made of isotropic graphite and faces against the EC beam through the plasma, and an IR camera for measuring the target plate temperature increase by the transmitted EC beam. This system is applicable to the high magnetic field (up to 2.75 T) and plasma density (up to 0.8 × 10{sup 19} m{sup ?3}). This system successfully evaluated the transmitted EC beam profile and the refraction.

  10. Strain tensors in layer systems by precision ion channeling measurements

    SciTech Connect (OSTI)

    Trinkaus, H.; Buca, D.; Hollaender, B.; Minamisawa, R. A.; Mantl, S. [Institute of Bio- and Nanosystems (IBN 1) and JARA-Fundamentals of Future Information Technology, Forschungszentrum Juelich, D-52425 Juelich (Germany); Hartmann, J. M. [CEA-LETI, MINATEC, 17 Rue des Martyrs, F-38054 Grenoble, Cedex 9 (France)

    2010-06-15T23:59:59.000Z

    A powerful method for analyzing general strain states in layer systems is the measurement of changes in the ion channeling directions. We present a systematic derivation and compilation of the required relations between the strain induced angle changes and the components of the strain tensor for general crystalline layer systems of reduced symmetry compared to the basic (cubic) crystal. It is shown that, for the evaluation of channeling measurements, virtually all layers of interest may be described as being 'pseudo-orthorhombic'. The commonly assumed boundary conditions and the effects of surface misorientations on them are discussed. Asymmetric strain relaxation in layers of reduced symmetry is attributed to a restriction in the slip system of the dislocations inducing it. The results are applied to {l_brace}110{r_brace}SiGe/Si layer systems.

  11. Apparatus and systems for measuring elongation of objects, methods of measuring, and reactor

    DOE Patents [OSTI]

    Rempe, Joy L. (Idaho Falls, ID); Knudson, Darrell L. (Firth, ID); Daw, Joshua E. (Idaho Falls, ID); Condie, Keith G. (Idaho Falls, ID); Stoots, Carl M. (Idaho Falls, ID)

    2011-11-29T23:59:59.000Z

    Elongation measurement apparatuses and systems comprise at least two Linear Variable Differential Transformers (LVDTs) with a push rod coupled to each of the at least two LVDTs at one longitudinal end thereof. At least one push rod extends to a base and is coupled thereto at an opposing longitudinal end, and at least one other push rod extends to a location spaced apart from the base and is configured to receive a sample between an opposing longitudinal end of the at least one other push rod and the base. Nuclear reactors comprising such apparatuses and systems and methods of measuring elongation of a material are also disclosed.

  12. Emergency Exercise to Focus on Aerial Radiation Detection and Measuring

    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 3,625govInstrumentstdmadapInactiveVisitingContractElectron-State Hybridization inperspectivesCommunications |

  13. Electronic Non-Contacting Linear Position Measuring System

    DOE Patents [OSTI]

    Post, Richard F. (Walnut Creek, CA)

    2005-06-14T23:59:59.000Z

    A non-contacting linear position location system employs a special transmission line to encode and transmit magnetic signals to a receiver on the object whose position is to be measured. The invention is useful as a non-contact linear locator of moving objects, e.g., to determine the location of a magnetic-levitation train for the operation of the linear-synchronous motor drive system.

  14. Model Based Sensor System for Temperature Measurement in R744 Air Conditioning Systems

    E-Print Network [OSTI]

    Reitz, Sven; Schneider, Peter

    2008-01-01T23:59:59.000Z

    The goal is the development of a novel principle for the temperature acquisition of refrigerants in CO2 air conditioning systems. The new approach is based on measuring the temperature inside a pressure sensor, which is also needed in the system. On the basis of simulative investigations of different mounting conditions functional relations between measured and medium temperature will be derived.

  15. Convolutions of singular measures and applications to the Zakharov system

    E-Print Network [OSTI]

    Bejenaru, Ioan

    2010-01-01T23:59:59.000Z

    Uniform L^2-estimates for the convolution of singular measures with respect to transversal submanifolds are proved in arbitrary space dimension, extending previous work of Bennett-Bez, Bejenaru-Herr-Tataru, and Bennett-Carbery-Wright. As an application, it is shown that the 3D Zakharov system is locally well-posed in the full subcritical regime.

  16. TEMPERATURE MEASUREMENT SYSTEM OF NOVOSIBIRSK FREE ELECTRON LASER

    E-Print Network [OSTI]

    Kozak, Victor R.

    TEMPERATURE MEASUREMENT SYSTEM OF NOVOSIBIRSK FREE ELECTRON LASER B.A.Gudkov, P.A.Selivanov, V all sensors are recorded to the database every 30 seconds. INTRODUCTION A high-power free electron laser (FEL), based on the microtron-recuperator[1], is under construction now at Budker Institute

  17. Measured Performance of California Buydown Program Residential PV Systems

    E-Print Network [OSTI]

    in the North. Data were collected from February 2000 through the end of 2001. Key energy production and power production are covered. Measures of energy production magnitude include energy production per unit of plane-of-array irradiance, and photovoltaic system energy production versus household energy consumption. The magnitude

  18. Designing a 3rd generation, authenticatable attribute measurement system

    SciTech Connect (OSTI)

    Thron, Jonathan [Los Alamos National Laboratory; Karpius, Peter [Los Alamos National Laboratory; Santi, Peter [Los Alamos National Laboratory; Smith, Morag [Los Alamos National Laboratory; Vo, Duc [Los Alamos National Laboratory; Williams, Richard [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    Attribute measurement systems (AMS) are designed to measure potentially sensitive items containing Special Nuclear Materials to determine if the items possess attributes which fall within an agreed-upon range. Such systems could be used in a treaty to inspect and verify the identity of items in storage without revealing any sensitive information associated with the item. An AMS needs to satisfy two constraints: the host party needs to be sure that none of their sensitive information is released, while the inspecting party wants to have confidence that the limited amount of information they see accurately reflects the properties of the item being measured. The former involves 'certifying' the system and the latter 'authenticating' it. Previous work into designing and building AMS systems have focused more on the questions of certifiability than on the questions of authentication - although a few approaches have been investigated. The next step is to build a 3rd generation AMS which (1) makes the appropriate measurements, (2) can be certified, and (3) can be authenticated (the three generations). This paper will discuss the ideas, options, and process of producing a design for a 3rd generation AMS.

  19. Plume measurement system (plumes) calibration experiment. Final technical report

    SciTech Connect (OSTI)

    Lohrmann, A.; Huhta, C.

    1994-08-01T23:59:59.000Z

    The Measurement of Entrainment and Transport work unit under the Dredging Research Program's Technical Area 1, entitled' Analysis of Dredged Material Placed in Open Water,' developed the PLUmes MEasurement System (PLUMES) to monitor the transport of suspended sediment from dredging and dredged material disposal operations. This acoustic system can monitor nearly synoptically, both horizontally and vertically. To determine the relationship between PLUMES acoustic measurements and suspended sediment concentrations, a laboratory sediment calibration experiment was conducted. The experiment studied acoustic backscattering from particles equivalent in size to those commonly found at dredging and dredged material disposal sites. These particles were suspended in a calibration chamber built for the study. The experiment showed that backscatterance could be predicted and concentrations calculated using Rayleigh scattering theory and an acoustic calibration of PLUMES. This report describes the experiment and the results of the experiment. Data from each calibration run are presented in the Appendices.

  20. Advanced Techniques for Power System Identification from Measured Data

    SciTech Connect (OSTI)

    Pierre, John W.; Wies, Richard; Trudnowski, Daniel

    2008-11-25T23:59:59.000Z

    Time-synchronized measurements provide rich information for estimating a power-system's electromechanical modal properties via advanced signal processing. This information is becoming critical for the improved operational reliability of interconnected grids. A given mode's properties are described by its frequency, damping, and shape. Modal frequencies and damping are useful indicators of power-system stress, usually declining with increased load or reduced grid capacity. Mode shape provides critical information for operational control actions. This project investigated many advanced techniques for power system identification from measured data focusing on mode frequency and damping ratio estimation. Investigators from the three universities coordinated their effort with Pacific Northwest National Laboratory (PNNL). Significant progress was made on developing appropriate techniques for system identification with confidence intervals and testing those techniques on field measured data and through simulation. Experimental data from the western area power system was provided by PNNL and Bonneville Power Administration (BPA) for both ambient conditions and for signal injection tests. Three large-scale tests were conducted for the western area in 2005 and 2006. Measured field PMU (Phasor Measurement Unit) data was provided to the three universities. A 19-machine simulation model was enhanced for testing the system identification algorithms. Extensive simulations were run with this model to test the performance of the algorithms. University of Wyoming researchers participated in four primary activities: (1) Block and adaptive processing techniques for mode estimation from ambient signals and probing signals, (2) confidence interval estimation, (3) probing signal design and injection method analysis, and (4) performance assessment and validation from simulated and field measured data. Subspace based methods have been use to improve previous results from block processing techniques. Bootstrap techniques have been developed to estimate confidence intervals for the electromechanical modes from field measured data. Results were obtained using injected signal data provided by BPA. A new probing signal was designed that puts more strength into the signal for a given maximum peak to peak swing. Further simulations were conducted on a model based on measured data and with the modifications of the 19-machine simulation model. Montana Tech researchers participated in two primary activities: (1) continued development of the 19-machine simulation test system to include a DC line; and (2) extensive simulation analysis of the various system identification algorithms and bootstrap techniques using the 19 machine model. Researchers at the University of Alaska-Fairbanks focused on the development and testing of adaptive filter algorithms for mode estimation using data generated from simulation models and on data provided in collaboration with BPA and PNNL. There efforts consist of pre-processing field data, testing and refining adaptive filter techniques (specifically the Least Mean Squares (LMS), the Adaptive Step-size LMS (ASLMS), and Error Tracking (ET) algorithms). They also improved convergence of the adaptive algorithms by using an initial estimate from block processing AR method to initialize the weight vector for LMS. Extensive testing was performed on simulated data from the 19 machine model. This project was also extensively involved in the WECC (Western Electricity Coordinating Council) system wide tests carried out in 2005 and 2006. These tests involved injecting known probing signals into the western power grid. One of the primary goals of these tests was the reliable estimation of electromechanical mode properties from measured PMU data. Applied to the system were three types of probing inputs: (1) activation of the Chief Joseph Dynamic Brake, (2) mid-level probing at the Pacific DC Intertie (PDCI), and (3) low-level probing on the PDCI. The Chief Joseph Dynamic Brake is a 1400 MW disturbance to the system and is injected for a ha

  1. System, method, and apparatus for remote measurement of terrestrial biomass

    DOE Patents [OSTI]

    Johnson, Patrick W (Jefferson, MD)

    2011-04-12T23:59:59.000Z

    A system, method, and/or apparatus for remote measurement of terrestrial biomass contained in vegetative elements, such as large tree boles or trunks present in an area of interest, are provided. The method includes providing an airborne VHF radar system in combination with a LiDAR system, overflying the area of interest while directing energy toward the area of interest, using the VHF radar system to collect backscatter data from the trees as a function of incidence angle and frequency, and determining a magnitude of the biomass from the backscatter data and data from the laser radar system for each radar resolution cell. A biomass map is generated showing the magnitude of the biomass of the vegetative elements as a function of location on the map by using each resolution cell as a unique location thereon. In certain preferred embodiments, a single frequency is used with a linear array antenna.

  2. System for measuring electricity and method of providing and using the same

    DOE Patents [OSTI]

    Kamer, Doanld B; Page, Robert

    2013-11-26T23:59:59.000Z

    Some embodiments include a system for measuring electricity. Other embodiments of related systems and methods are also disclosed.

  3. System having unmodulated flux locked loop for measuring magnetic fields

    DOE Patents [OSTI]

    Ganther, Jr., Kenneth R. (Olathe, KS); Snapp, Lowell D. (Blue Springs, MO)

    2006-08-15T23:59:59.000Z

    A system (10) for measuring magnetic fields, wherein the system (10) comprises an unmodulated or direct-feedback flux locked loop (12) connected by first and second unbalanced RF coaxial transmission lines (16a, 16b) to a superconducting quantum interference device (14). The FLL (12) operates for the most part in a room-temperature or non-cryogenic environment, while the SQUID (14) operates in a cryogenic environment, with the first and second lines (16a, 16b) extending between these two operating environments.

  4. System for measuring multiphase flow using multiple pressure differentials

    DOE Patents [OSTI]

    Fincke, James R. (Idaho Falls, ID)

    2003-01-01T23:59:59.000Z

    An improved method and system for measuring a multi-phase flow in a pressure flow meter. An extended throat venturi is used and pressure of the multi-phase flow is measured at three or more positions in the venturi, which define two or more pressure differentials in the flow conduit. The differential pressures are then used to calculate the mass flow of the gas phase, the total mass flow, and the liquid phase. The system for determining the mass flow of the high void fraction fluid flow and the gas flow includes taking into account a pressure drop experienced by the gas phase due to work performed by the gas phase in accelerating the liquid phase.

  5. The design and implementation of the AVNG measurement system

    SciTech Connect (OSTI)

    Macarthur, Duncan W [Los Alamos National Laboratory; Thron, Jonathan [Los Alamos National Laboratory; Razinkov, Sergey [RFNC-VNIIEF; Livke, Alexander [RFNC-VNIIEF; Kondratov, Sergey [RFNC-VNIIEF

    2010-01-01T23:59:59.000Z

    An attribute measurement system (AMS) measures a number of unclassified attributes of potentially classified material. By displaying these unclassified results only as red or green lights, the AMS protects potentially classified information while still generating confidence in the measurement result. The AVNG that we describe is an AMS built by RFNC-VNIIEF in Sarov, Russia. The AVNG detects neutron and gamma radiation signatures and displays the three unclassified attributes of 'plutonium presence,' 'plutonium mass >2 kg,' and 'plutonium isotopic ratio ({sup 240}Pu to {sup 239}Pu) < 0.1.' In this presentation, we will describe the design of the AVNG neutron and gamma detector subsystems, as well as the design of the entire AMS incorporating these detectors. We will also describe the construction of the AVNG and the final design that was demonstrated in June 2009.

  6. Measurements of Beam Ion Loss from the Compact Helical System

    SciTech Connect (OSTI)

    D. S. Darrow, M. Isobe, Takashi Kondo, M. Sasao, and the CHS Group National Institute for Fusion Science, Toki, Gifu, Japan

    2010-02-03T23:59:59.000Z

    Beam ion loss from the Compact Helical System (CHS) has been measured with a scintillator-type probe. The total loss to the probe, and the pitch angle and gyroradius distributions of that loss, have been measured as various plasma parameters were scanned. Three classes of beam ion loss were observed at the probe position: passing ions with pitch angles within 10o of those of transition orbits, ions on transition orbits, and ions on trapped orbits, typically 15o or more from transition orbits. Some orbit calculations in this geometry have been performed in order to understand the characteristics of the loss. Simulation of the detector signal based upon the following of orbits from realistic beam deposition profiles is not able to reproduce the pitch angle distribution of the losses measured. Consequently it is inferred that internal plasma processes, whether magnetohydrodynamic modes, radial electric fields, or plasma turbulence, move previously confined beam ions to transition orbits, resulting in their loss.

  7. Table-top Extreme Ultraviolet Laser Aerial Imaging of Lithographic Masks

    E-Print Network [OSTI]

    Brizuela, F.

    2012-01-01T23:59:59.000Z

    Table-top Extreme Ultraviolet Laser Aerial Imaging ofmasks realized using a table-top aerial imaging systembased on a table-top X=\\3.2 laser. © 2 0 0 9 Optical Society

  8. Nonlinear Trajectory Control of Multi-body Aerial Manipulators Marin Kobilarov

    E-Print Network [OSTI]

    Kobilarov, Marin

    Nonlinear Trajectory Control of Multi-body Aerial Manipulators Marin Kobilarov Laboratory- of-freedom aerial manipulators using linear control techniques [15] or nonlinear variable parameter for Computational Sensing and Robotics Johns Hopkins University Abstract This paper studies trajectory control

  9. High pressure argon ionization chamber systems for the measurement of environmental radiation exposure rates

    E-Print Network [OSTI]

    DeCampo, J A; Raft, P D

    1972-01-01T23:59:59.000Z

    High pressure argon ionization chamber systems for the measurement of environmental radiation exposure rates

  10. Hybrid Modeling and Experimental Cooperative Control of Multiple Unmanned Aerial Vehicles

    E-Print Network [OSTI]

    Fainekos, Georgios E.

    focused on single aerial vehicles. In particular, we have witnessed autonomous or aggressive control autonomous formation flying of autonomous aerial vehicles (UAVs) are [20]­[24]. In [22] and [23], the authorsHybrid Modeling and Experimental Cooperative Control of Multiple Unmanned Aerial Vehicles Selcuk

  11. 'Known Secure Sensor Measurements' for Critical Infrastructure Systems: Detecting Falsification of System State

    SciTech Connect (OSTI)

    Miles McQueen; Annarita Giani

    2011-09-01T23:59:59.000Z

    This paper describes a first investigation on a low cost and low false alarm, reliable mechanism for detecting manipulation of critical physical processes and falsification of system state. We call this novel mechanism Known Secure Sensor Measurements (KSSM). The method moves beyond analysis of network traffic and host based state information, in fact it uses physical measurements of the process being controlled to detect falsification of state. KSSM is intended to be incorporated into the design of new, resilient, cost effective critical infrastructure control systems. It can also be included in incremental upgrades of already in- stalled systems for enhanced resilience. KSSM is based on known secure physical measurements for assessing the likelihood of an attack and will demonstrate a practical approach to creating, transmitting, and using the known secure measurements for detection.

  12. aerial natural gas: Topics by E-print Network

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

    aerial natural gas 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 A Low-Cost Natural GasFreshwater...

  13. LOCOMOTION (TERRESTRIAL AND AERIAL) AND COMMUNICATION OF AUTONOMOUS ROBOT NETWORKS

    E-Print Network [OSTI]

    Kansas, University of

    , flying robots, micro-air vehicles, robot communication, autonomous robot networks. #12;2 1. TERRESTRIAL1 LOCOMOTION (TERRESTRIAL AND AERIAL) AND COMMUNICATION OF AUTONOMOUS ROBOT NETWORKS Arvin Agah vehicles, next generation robotic platforms, platform mechanics and materials, winterization of robotic

  14. aerial gamma ray: Topics by E-print Network

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

    aerial gamma ray 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 Cosmic Rays: What Gamma Rays Can Say...

  15. Experimental Cooperative Control of Fixed-Wing Unmanned Aerial Vehicles

    E-Print Network [OSTI]

    Fainekos, Georgios E.

    Experimental Cooperative Control of Fixed-Wing Unmanned Aerial Vehicles Selcuk Bayraktar, Georgios architecture (Cloud cap technologies) Hybrid Modeling (of the Piccolo autopilot) Experiments Autonomous Flight - 20min #12;UAVs @ Penn Servos controlling the payload LaptopPC Dell X200 3.5HP fuel engine Deployable

  16. Perform Thermodynamics Measurements on Fuel Cycle Case Study Systems

    SciTech Connect (OSTI)

    Leigh R. Martin

    2014-09-01T23:59:59.000Z

    This document was prepared to meet FCR&D level 3 milestone M3FT-14IN0304022, “Perform Thermodynamics Measurements on Fuel Cycle Case Study Systems.” This work was carried out under the auspices of the Thermodynamics and Kinetics FCR&D work package. This document reports preliminary work in support of determining the thermodynamic parameters for the ALSEP process. The ALSEP process is a mixed extractant system comprised of a cation exchanger 2-ethylhexyl-phosphonic acid mono-2-ethylhexyl ester (HEH[EHP]) and a neutral solvating extractant N,N,N’,N’-tetraoctyldiglycolamide (TODGA). The extractant combination produces complex organic phase chemistry that is challenging for traditional measurement techniques. To neutralize the complexity, temperature dependent solvent extraction experiments were conducted with neat TODGA and scaled down concentrations of the ALSEP formulation to determine the enthalpies of extraction for the two conditions. A full set of thermodynamic data for Eu, Am, and Cm extraction by TODGA from 3.0 M HNO3 is reported. These data are compared to previous extraction results from a 1.0 M HNO3 aqueous medium, and a short discussion of the mixed HEH[EHP]/TODGA system results is offered.

  17. MEASURING AND EXPRESSING THE PERFORMANCE OF ENERGY STORAGE SYSTEMS

    SciTech Connect (OSTI)

    Schoenwald, David; Conover, David R.

    2013-12-03T23:59:59.000Z

    Until late 2012, there was no uniform methodology to measure and express the performance of energy storage systems (ESS). A void in this area can affect the acceptance of ESS in the marketplace because different systems cannot be equitably compared and ESS cost-benefit analysis may be challenging due to a lack of verified and relevant ESS performance. The lack of such criteria also furthers the probability that each ESS customer or user will make up their own; necessitating “custom validation” to a unique set of criteria each time an ESS is to be considered or installed. To address this need and foster the acceptance of ESS, the U.S. Department of Energy’s (DOE) Energy Storage Systems Program facilitated the development of a protocol to measure and express ESS performance and is supporting its updating, enhancement and use in formal consensus standards development. Of particular interest is the development of the document through an open and transparent process that saved considerable time.

  18. Measuring FLOPS Using Hardware Performance Counter Technologies on LC systems

    SciTech Connect (OSTI)

    Ahn, D H

    2008-09-05T23:59:59.000Z

    FLOPS (FLoating-point Operations Per Second) is a commonly used performance metric for scientific programs that rely heavily on floating-point (FP) calculations. The metric is based on the number of FP operations rather than instructions, thereby facilitating a fair comparison between different machines. A well-known use of this metric is the LINPACK benchmark that is used to generate the Top500 list. It measures how fast a computer solves a dense N by N system of linear equations Ax=b, which requires a known number of FP operations, and reports the result in millions of FP operations per second (MFLOPS). While running a benchmark with known FP workloads can provide insightful information about the efficiency of a machine's FP pipelines in relation to other machines, measuring FLOPS of an arbitrary scientific application in a platform-independent manner is nontrivial. The goal of this paper is twofold. First, we explore the FP microarchitectures of key processors that are underpinning the LC machines. Second, we present the hardware performance monitoring counter-based measurement techniques that a user can use to get the native FLOPS of his or her program, which are practical solutions readily available on LC platforms. By nature, however, these native FLOPS metrics are not directly comparable across different machines mainly because FP operations are not consistent across microarchitectures. Thus, the first goal of this paper represents the base reference by which a user can interpret the measured FLOPS more judiciously.

  19. Highly sensitive vacuum ion pump current measurement system

    DOE Patents [OSTI]

    Hansknecht, John Christopher (Williamsburg, VA)

    2006-02-21T23:59:59.000Z

    A vacuum system comprising: 1) an ion pump; 2) power supply; 3) a high voltage DC--DC converter drawing power from the power supply and powering the vacuum pump; 4) a feedback network comprising an ammeter circuit including an operational amplifier and a series of relay controlled scaling resistors of different resistance for detecting circuit feedback; 5) an optional power block section intermediate the power supply and the high voltage DC--DC converter; and 6) a microprocessor receiving feedback information from the feedback network, controlling which of the scaling resistors should be in the circuit and manipulating data from the feedback network to provide accurate vacuum measurement to an operator.

  20. Real-time Vehicle Reidentification System for Freeway Performance Measurements

    E-Print Network [OSTI]

    Jeng, Shin-Ting

    2007-01-01T23:59:59.000Z

    system are considered “non-intrusive detection systems”detection systems, non-intrusive detection systems areproblem. Among the non- intrusive detection systems ILDs,

  1. System and method for measuring permeability of materials

    SciTech Connect (OSTI)

    Hallman, Jr., Russell Louis; Renner, Michael John

    2013-07-09T23:59:59.000Z

    Systems and methods are provided for measuring the permeance of a material. The permeability of the material may also be derived. Systems typically provide a liquid or high concentration fluid bath on one side of a material test sample, and a gas flow across the opposing side of the material test sample. The mass flow rate of permeated fluid as a fraction of the combined mass flow rate of gas and permeated fluid is used to calculate the permeance of the material. The material test sample may be a sheet, a tube, or a solid shape. Operational test conditions may be varied, including concentration of the fluid, temperature of the fluid, strain profile of the material test sample, and differential pressure across the material test sample.

  2. Ultrasonic thickness measuring and imaging system and method

    DOE Patents [OSTI]

    Bylenok, Paul J.; Patmos, William M.; Wagner, Thomas A.; Martin, Francis H.

    1992-08-04T23:59:59.000Z

    An ultrasonic thickness measuring and imaging system uses an ultrasonic fsed beam probe for measuring thickness of an object, such as a wall of a tube, a computer for controlling movement of the probe in a scanning pattern within the tube and processing an analog signal produced by the probe which is proportional to the tube wall thickness in the scanning pattern, and a line scan recorder for producing a record of the tube wall thicknesses measured by the probe in the scanning pattern. The probe is moved in the scanning pattern to sequentially scan circumferentially the interior tube wall at spaced apart adjacent axial locations. The computer processes the analog signal by converting it to a digital signal and then quantifies the digital signal into a multiplicity of thickness points with each falling in one of a plurality of thickness ranges corresponding to one of a plurality of shades of grey. From the multiplicity of quantified thickness points, a line scan recorder connected to the computer generates a pictorial map of tube wall thicknesses with each quantified thickness point thus being obtained from a minute area, e.g. 0.010 inch by 0.010 inch, of tube wall and representing one pixel of the pictorial map. In the pictorial map of tube wall thicknesses, the pixels represent different wall thicknesses having different shades of grey.

  3. Ultrasonic thickness measuring and imaging system and method

    DOE Patents [OSTI]

    Bylenok, Paul J. (Clifton Park, NY); Patmos, William M. (Schenectady, NY); Wagner, Thomas A. (Bronswick, NY); Martin, Francis H. (Melrose, NY)

    1992-01-01T23:59:59.000Z

    An ultrasonic thickness measuring and imaging system uses an ultrasonic fsed beam probe for measuring thickness of an object, such as a wall of a tube, a computer for controlling movement of the probe in a scanning pattern within the tube and processing an analog signal produced by the probe which is proportional to the tube wall thickness in the scanning pattern, and a line scan recorder for producing a record of the tube wall thicknesses measured by the probe in the scanning pattern. The probe is moved in the scanning pattern to sequentially scan circumferentially the interior tube wall at spaced apart adjacent axial locations. The computer processes the analog signal by converting it to a digital signal and then quantifies the digital signal into a multiplicity of thickness points with each falling in one of a plurality of thickness ranges corresponding to one of a plurality of shades of grey. From the multiplicity of quantified thickness points, a line scan recorder connected to the computer generates a pictorial map of tube wall thicknesses with each quantified thickness point thus being obtained from a minute area, e.g. 0.010 inch by 0.010 inch, of tube wall and representing one pixel of the pictorial map. In the pictorial map of tube wall thicknesses, the pixels represent different wall thicknesses having different shades of grey.

  4. 2001 by M. Kosticwww.kostic.niu.edu Ch.3: Measurement System Behavior

    E-Print Network [OSTI]

    Kostic, Milivoje M.

    1 ©2001 by M. Kosticwww.kostic.niu.edu Ch.3: Measurement System Behavior · Ch.3: Measurement System) · Magnitude ratio (2nd O.S.) · Phase shift (2nd O.S.) · 2nd Order System (MathCAD) · The End ©2001 by M. Kosticwww.kostic.niu.edu Ch.3:MeasurementSystem Behavior #12;2 ©2001 by M. Kosticwww

  5. THE NEW VME-BASED SYSTEM FOR MAGNETIC MEASUREMENTS WITH HALL SENSORS

    E-Print Network [OSTI]

    Kozak, Victor R.

    requirements to such systems. Note also, that for controlling the peripheral equipment like power supplies. ELECTRONICS OF HALL-SENSOR MEASURING SYSTEM The Figure 1 demonstrates the structure of measuring system CABLES CANBUS Figure 1: The structure of Hall measuring system. Carriage and its Thermostabilization

  6. Measurable Control System Security through Ideal Driven Technical Metrics

    SciTech Connect (OSTI)

    Miles McQueen; Wayne Boyer; Sean McBride; Marie Farrar; Zachary Tudor

    2008-01-01T23:59:59.000Z

    The Department of Homeland Security National Cyber Security Division supported development of a small set of security ideals as a framework to establish measurable control systems security. Based on these ideals, a draft set of proposed technical metrics was developed to allow control systems owner-operators to track improvements or degradations in their individual control systems security posture. The technical metrics development effort included review and evaluation of over thirty metrics-related documents. On the bases of complexity, ambiguity, or misleading and distorting effects the metrics identified during the reviews were determined to be weaker than necessary to aid defense against the myriad threats posed by cyber-terrorism to human safety, as well as to economic prosperity. Using the results of our metrics review and the set of security ideals as a starting point for metrics development, we identified thirteen potential technical metrics - with at least one metric supporting each ideal. Two case study applications of the ideals and thirteen metrics to control systems were then performed to establish potential difficulties in applying both the ideals and the metrics. The case studies resulted in no changes to the ideals, and only a few deletions and refinements to the thirteen potential metrics. This led to a final proposed set of ten core technical metrics. To further validate the security ideals, the modifications made to the original thirteen potential metrics, and the final proposed set of ten core metrics, seven separate control systems security assessments performed over the past three years were reviewed for findings and recommended mitigations. These findings and mitigations were then mapped to the security ideals and metrics to assess gaps in their coverage. The mappings indicated that there are no gaps in the security ideals and that the ten core technical metrics provide significant coverage of standard security issues with 87% coverage. Based on the two case studies and evaluation of the seven assessments, the security ideals demonstrated their value in guiding security thinking. Further, the final set of core technical metrics has been demonstrated to be both usable in the control system environment and provide significant coverage of standard security issues.

  7. An aerial radiological survey of the Central Savannah River Site, Aiken, South Carolina

    SciTech Connect (OSTI)

    Feimster, E.L.

    1991-09-01T23:59:59.000Z

    An aerial radiological survey was conducted over a 194-square- kilometer (75-square-mile) area encompassing the central portion of the Savannah River Site (SRS). The survey was flown during February 10--27, 1987. These radiological measurements were used as baseline data for the central area and for determining the extent of man-made radionuclide distribution. Previous SRS surveys included small portions of the area; the 1987 survey was covered during the site- wide survey conducted in 1979. Man-made radionuclides (including cobalt-60, cesium-137, protactinium-234m, and elevated levels of uranium-238 progeny) that were detected during the survey were typical of those produced by the reactor operations and material processing activities being conducted in the area. The natural terrestrial radiation levels were consistent with those measured during prior surveys of other SRS areas. 1 refs., 4 figs.

  8. Measured Air Distribution Effectiveness for Residential Mechanical Ventilation Systems

    E-Print Network [OSTI]

    Sherman, Max H.

    2008-01-01T23:59:59.000Z

    In Review J. Indoor Air) 2007 LBNL-63193 Tarantola, Albert,Gas Measurement to Determine Air Movements in a House,Measurement Techniques”, Air Infiltration and Ventilation

  9. activity measurement systems: Topics by E-print Network

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

    is composed with one cam- era, one Paris-Sud XI, Universit de 134 Retrospective radon progeny measurements through measurements of 210 activities on glass objects using stacked...

  10. Measurement of the Hydrophobic Force in a Soft Matter System Supporting Information Supporting Information for

    E-Print Network [OSTI]

    Chan, Derek Y C

    Measurement of the Hydrophobic Force in a Soft Matter System ­ Supporting Information 1 Supporting Information for "Measurement of the Hydrophobic Force in a Soft Matter System" Rico F. Tabor*1 , Chu Wu2.tabor@monash.edu and d.chan@unimelb.edu.au #12;Measurement of the Hydrophobic Force in a Soft Matter System ­ Supporting

  11. TPE-CMS: A Comfort Measuring System for Public Bus Service in Taipei City

    E-Print Network [OSTI]

    Chen, Ling-Jyh

    TPE-CMS: A Comfort Measuring System for Public Bus Service in Taipei City Cheng-Yu Lin and Ling Measuring System (CMS) for public transportation systems in Taipei city, called TPE-CMS. TPE-CMS exploits the GPS and G-sensor of modern smart phones to measure the comfort level of vehicle rides. Then, it mashes

  12. A reliable control system for measurement on film thickness in copper chemical mechanical planarization system

    SciTech Connect (OSTI)

    Li, Hongkai; Qu, Zilian; Zhao, Qian; Tian, Fangxin; Zhao, Dewen; Meng, Yonggang; Lu, Xinchun [State Key Laboratory of Tribology, Tsinghua University, Beijing 100084 (China)] [State Key Laboratory of Tribology, Tsinghua University, Beijing 100084 (China)

    2013-12-15T23:59:59.000Z

    In recent years, a variety of film thickness measurement techniques for copper chemical mechanical planarization (CMP) are subsequently proposed. In this paper, the eddy-current technique is used. In the control system of the CMP tool developed in the State Key Laboratory of Tribology, there are in situ module and off-line module for measurement subsystem. The in situ module can get the thickness of copper film on wafer surface in real time, and accurately judge when the CMP process should stop. This is called end-point detection. The off-line module is used for multi-points measurement after CMP process, in order to know the thickness of remained copper film. The whole control system is structured with two levels, and the physical connection between the upper and the lower is achieved by the industrial Ethernet. The process flow includes calibration and measurement, and there are different algorithms for two modules. In the process of software development, C++ is chosen as the programming language, in combination with Qt OpenSource to design two modules’ GUI and OPC technology to implement the communication between the two levels. In addition, the drawing function is developed relying on Matlab, enriching the software functions of the off-line module. The result shows that the control system is running stably after repeated tests and practical operations for a long time.

  13. Quantitative evaluation of mask phase defects from through-focus EUV aerial images

    SciTech Connect (OSTI)

    Mochi, Iacopo; Yamazoe, Kenji; Neureuther, Andrew; Goldberg, Kenneth A.

    2011-02-21T23:59:59.000Z

    Mask defects inspection and imaging is one of the most important issues for any pattern transfer lithography technology. This is especially true for EUV lithography where the wavelength-specific properties of masks and defects necessitate actinic inspection for a faithful prediction of defect printability and repair performance. In this paper we will present a technique to obtain a quantitative characterization of mask phase defects from EUV aerial images. We apply this technique to measure the aerial image phase of native defects on a blank mask, measured with the SEMATECH Berkeley Actinic Inspection Tool (AIT) an EUV zoneplate microscope that operates at Lawrence Berkeley National Laboratory. The measured phase is compared with predictions made from AFM top-surface measurements of those defects. While amplitude defects are usually easy to recognize and quantify with standard inspection techniques like scanning electron microscopy (SEM), defects or structures that have a phase component can be much more challenging to inspect. A phase defect can originate from the substrate or from any level of the multilayer. In both cases its effect on the reflected field is not directly related to the local topography of the mask surface, but depends on the deformation of the multilayer structure. Using the AIT, we have previously showed that EUV inspection provides a faithful and reliable way to predict the appearance of mask defect on the printed wafer; but to obtain a complete characterization of the defect we need to evaluate quantitatively its phase component. While aerial imaging doesn't provide a direct measurement of the phase of the object, this information is encoded in the through focus evolution of the image intensity distribution. Recently we developed a technique that allows us to extract the complex amplitude of EUV mask defects using two aerial images from different focal planes. The method for the phase reconstruction is derived from the Gerchberg-Saxton (GS) algorithm, an iterative method that can be used to reconstruct phase and amplitude of an object from the intensity distributions in the image and in the pupil plane. The GS algorithm is equivalent to a two-parameter optimization problem and it needs exactly two constraints to be solved, namely two intensity distributions in different focal planes. In some formulations, adding any other constraint would result in an ill posed problem. On the other hand, the solution's stability and convergence time can both be improved using more information. We modified our complex amplitude reconstruction algorithm to use an arbitrary number of through focus images and we compared its performance with the previous version in terms of convergence speed, robustness and accuracy. We have demonstrated the phase-reconstruction method on native, mask-blank phase defects and compared the results with phase-predictions made from AFM data collected before and after the multilayer deposition. The method and the current results could be extremely useful for improving the modeling and understanding of native phase defects, their detectability, and their printability.

  14. Lung Function Measurement with Multiple-Breath-Helium Washout System

    E-Print Network [OSTI]

    Wang, Jau-Yi; Owers-Bradley, John; Mellor, Chris

    2011-01-01T23:59:59.000Z

    Multiple-breath-washout (MBW) measurements are regarded as a sensitive technique which can reflect the ventilation inhomogeneity of respiratory airways. Typically nitrogen is used as the tracer gas and is washed out by pure oxygen in multi-breath-nitrogen (MBNW) washout tests. In this work, instead of using nitrogen, helium is used as the tracer gas and a multiple-helium-breath-washout (MBHW) system has been developed for the lung function study. A commercial quartz tuning fork with a resonance frequency of 32768 Hz has been used for detecting the change of the respiratory gas density. The resonance frequency of the tuning fork decreases linearly with increasing density of the surrounding gas. Knowing the CO2 concentration from the infrared carbon dioxide detector, the helium concentration can be determined. Results from 12 volunteers (3 mild asthmatics, 2 smokers, 1 with asthma history, 1 with COPD history, 5 normal) have shown that mild asthmatics have higher ventilation inhomogeneity in either conducting o...

  15. An Unmanned Aerial Vehicle as Human-Assistant Robotics System

    E-Print Network [OSTI]

    Chingtham, Tejbanta Singh; Ghose, M K; 10.1109/ICCIC.2010.5705731

    2011-01-01T23:59:59.000Z

    According to the American Heritage Dictionary [1],Robotics is the science or study of the technology associated with the design, fabrication, theory, and application of Robots. The term Hoverbot is also often used to refer to sophisticated mechanical devices that are remotely controlled by human beings even though these devices are not autonomous. This paper describes a remotely controlled hoverbot by installing a transmitter and receiver on both sides that is the control computer (PC) and the hoverbot respectively. Data is transmitted as signal or instruction via a infrastructure network which is converted into a command for the hoverbot that operates at a remote site.

  16. Enabling Technologies for Personal Aerial Transportation Systems A progress report

    E-Print Network [OSTI]

    of Technology and Germany's national research centre for aeronautics and space DLR. http://www.mycopter.eu #12;

  17. DECENTRALIZED ROBUST NONLINEAR MODEL PREDICTIVE CONTROLLER FOR UNMANNED AERIAL SYSTEMS

    E-Print Network [OSTI]

    Garcia, Gonzalo Andres

    2013-05-31T23:59:59.000Z

    that enables the vehicle to follow an arbitrary trajectory shaped by moving points; 2 A formulation that embeds the guidance logic and trajectory information in the aircraft model, avoiding cross coupling and control degradation; 3 An artificial neural network...

  18. SYSTEMIC DOPPLER BASED AERIAL TARGET TRACKING Felix Totir1

    E-Print Network [OSTI]

    Boyer, Edmond

    street, F-38402 Saint Martin d'Heres, France, [ioana, mars]@gipsa-lab.inpg.fr 4: University of Montenegro, 81000 Podgorica, Montenegro, srdjan@cg.ac.yu ABSTRACT For obvious reasons of cost, discretion

  19. Development of a camber measurement system for skis and snowboards

    E-Print Network [OSTI]

    Pier, Timothy F

    2008-01-01T23:59:59.000Z

    At the request of K2 Sports, in Seattle, Washington, a machine was constructed to measure the base profile of skis and snowboards. The measurements to be taken included overall length, running surface length, locations of ...

  20. E-Print Network 3.0 - aerial vehicle instrumentation Sample Search...

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

    W. McLain, Randal W. Beard, "Maximizing miniature aerial vehicles," IEEE Robotics and Automation... Unexpected Obstacle Research Overview Guidance, Navigation, Vehicle...

  1. E-Print Network 3.0 - aerial vehicle radome Sample Search Results

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

    W. McLain, Randal W. Beard, "Maximizing miniature aerial vehicles," IEEE Robotics and Automation... Unexpected Obstacle Research Overview Guidance, Navigation, Vehicle...

  2. E-Print Network 3.0 - autonomous unmanned aerial Sample Search...

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

    for Miniature Helicopters with Summary: -based autonomous landing of an unmanned aerial vehicle. In IEEE Intl. Conf. on Robotics and Automation (ICRA... flying robots (MFRs)....

  3. Integrating Geometric, Motion and Appearance Constraints for Robust Tracking in Aerial Videos

    E-Print Network [OSTI]

    Hasan, Mahmudul

    2013-01-01T23:59:59.000Z

    P. Pan and D. Schonfeld, “Video tracking based on sequentialand S. Mubarak, “Simultaneous video stabilization and movingAlgorithm 2: GMAC aerial video tracking Data: Unstable

  4. Measured Air Distribution Effectiveness for Residential Mechanical Ventilation Systems

    E-Print Network [OSTI]

    Sherman, Max H.

    2008-01-01T23:59:59.000Z

    credit for different air distribution methods can be given.Measured Air Distribution Effectiveness for Residential4   Distribution metric

  5. Wind velocity measurements using a pulsed LIDAR system: first results

    E-Print Network [OSTI]

    Peinke, Joachim

    . A laser beam of 1.54 µm wavelength takes measurements of the wind speed in beamwise direction. To obtain the three-dimensinal wind vector, the beam is inclined by 30 from vertical direction and measurements 12345 t [s] vh[m/s] Figure 2. Segment of measured time series of the horizontal wind speed magnitude vh

  6. Modeling and Measurement Constraints in Fault Diagnostics for HVAC Systems

    E-Print Network [OSTI]

    Najafi, Massieh

    2010-01-01T23:59:59.000Z

    in Fault Diagnostics for HVAC Systems Massieh Najafi 1 ,tools for determining HVAC diagnostics, methods todetect faults in HVAC systems are still generally

  7. MEASURING FUSION CROSS-SECTIONS FOR THE C SYSTEM AT NEAR BARRIER ENERGIES

    E-Print Network [OSTI]

    de Souza, Romualdo T.

    MEASURING FUSION CROSS-SECTIONS FOR THE 20 O + 12 C SYSTEM AT NEAR BARRIER ENERGIES Michael Rudolph Michael Rudolph MEASURING FUSION CROSS-SECTIONS FOR THE 20 O + 12 C SYSTEM AT NEAR BARRIER ENERGIES The fusion of neutron-rich 20 O on 12 C at energies in the range of 20 MeV Elab 41 MeV was measured

  8. Measured Air Distribution Effectiveness for Residential Mechanical Ventilation Systems

    E-Print Network [OSTI]

    Sherman, Max H.

    2008-01-01T23:59:59.000Z

    6 th AIVC Conference “Ventilation Strategies and MeasurementAir Infiltration and Ventilation Centre, U.K. 1985REFERENCES ASHRAE. 2007. “Ventilation for Acceptable Indoor

  9. acceleration measurement system: Topics by E-print Network

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

    are inherently tied to the growth and wavebreaking of the nonlinear plasma wave. This evolution is confirmed by numerical simulations, showing that these measurements provide...

  10. Automated Measurement and Signaling Systems for the Transactional Network

    E-Print Network [OSTI]

    Piette, Mary Ann

    2014-01-01T23:59:59.000Z

    Demand Response and Energy Efficiency in Commercial Buildings.of Demand Response measures in the test building. They areBuilding Electricity Use, with Application to Demand Response,

  11. A Memory Soft Error Measurement on Production Systems Xin Li Kai Shen Michael C. Huang

    E-Print Network [OSTI]

    Shen, Kai

    A Memory Soft Error Measurement on Production Systems Xin Li Kai Shen Michael C. Huang University and dealing with these soft (or transient) errors is impor- tant for system reliability. Several earlier for memory soft error measurement on production systems where performance impact on existing running ap

  12. A Memory Soft Error Measurement on Production Systems # Xin Li Kai Shen Michael C. Huang

    E-Print Network [OSTI]

    Shen, Kai

    A Memory Soft Error Measurement on Production Systems # Xin Li Kai Shen Michael C. Huang University and dealing with these soft (or transient) errors is impor­ tant for system reliability. Several earlier for memory soft error measurement on production systems where performance impact on existing running ap

  13. Real-Time Deep-Ocean Tsunami Measuring, Monitoring, and Reporting System

    E-Print Network [OSTI]

    identified the requirements of the tsunami measurement system through evolution in both technologyReal-Time Deep-Ocean Tsunami Measuring, Monitoring, and Reporting System: The NOAA DART II the system components that make up the second-generation Deep-Ocean Assessment and Reporting of Tsunamis

  14. Design and testing of a non-intrusive torque measurement system

    E-Print Network [OSTI]

    Wilson, Edwin Ernest

    1998-01-01T23:59:59.000Z

    This thesis details the initial development of a non-intrusive torque measurement system to measure torque in a rotating driveshaft like those commonly found on internal combustion engine powered irrigation pumping plants. A typical driveshaft used...

  15. Measure Guideline: Selecting Ventilation Systems for Existing Homes

    SciTech Connect (OSTI)

    Aldrich, R.

    2014-02-01T23:59:59.000Z

    This document addresses adding -or improving - mechanical ventilation systems to existing homes. The purpose of ventilation is to remove contaminants from homes, and this report discusses where, when, and how much ventilation is appropriate in a home, including some discussion of relevant codes and standards. Advantages, disadvantages, and approximate costs of various system types are presented along with general guidelines for implementing the systems in homes. CARB intends for this document to be useful to decision makers and contractors implementing ventilation systems in homes. Choosing the "best" system is not always straightforward; selecting a system involves balancing performance, efficiency, cost, required maintenance, and several other factors. It is the intent of this document to assist contractors in making more informed decisions when selecting systems. Ventilation is an integral part of a high-performance home. With more air-sealed envelopes, a mechanical means of removing contaminants is critical for indoor environmental quality and building durability.

  16. Use of Micro Unmanned Aerial Vehicles in Transportation Infrastructure Condition Surveys

    E-Print Network [OSTI]

    Hart, William Scott

    2011-02-22T23:59:59.000Z

    Collection Methods????????????????.......................... 9 2.4 Evolution of the Micro-Unmanned Aerial Vehicle??????............. 10 2.5 Current Uses of Micro-Unmanned Aerial Vehicles??????..........? 12 2.6 Types of MUAVs...?s Potential for Creating a Safer Work Environment....................................................................................... 10 2.4. Dragan Fly Innovations Tango Plane Type MUAV (Dragan Fly 2010...

  17. Techniques and Technology Article Aerial Surveys for Estimating Wild Turkey Abundance in

    E-Print Network [OSTI]

    Butler, Matthew J.

    Techniques and Technology Article Aerial Surveys for Estimating Wild Turkey Abundance in the Texas Aerial surveys have been used to estimate abundance of several wild bird species including wild turkeys (Meleagris gallopavo). We used inflatable turkey decoys at 3 study sites in the Texas Rolling Plains

  18. Wind-Energy based Path Planning For Unmanned Aerial Vehicles Using Markov Decision Processes

    E-Print Network [OSTI]

    Smith, Ryan N.

    Wind-Energy based Path Planning For Unmanned Aerial Vehicles Using Markov Decision Processes Wesam H. Al-Sabban, Luis F. Gonzalez and Ryan N. Smith Abstract-- Exploiting wind-energy is one possible way to extend the flight duration of an Unmanned Aerial Vehicle. Wind-energy can also be used

  19. Modeling Residential Urban Areas from Dense Aerial LiDAR Point Clouds

    E-Print Network [OSTI]

    Shahabi, Cyrus

    Modeling Residential Urban Areas from Dense Aerial LiDAR Point Clouds Qian-Yi Zhou and Ulrich models for residential areas from aerial LiDAR scans. The key differ- ence between downtown area modeling and residential area modeling is that the latter usually contains rich vegetation. Thus, we propose a robust

  20. UBC Social Ecological Economic Development Studies (SEEDS) Student Report The UBC Food System: Indicators in the Measurement of Sustainability The

    E-Print Network [OSTI]

    UBC Social Ecological Economic Development Studies (SEEDS) Student Report The UBC Food System: Indicators in the Measurement of Sustainability The Sustainability of UBC Food System Collaborative Project System: Indicators in the Measurement of Sustainability The Sustainability of UBC Food System

  1. A Low-Cost Natural Gas/Freshwater Aerial Pipeline

    E-Print Network [OSTI]

    Alexander Bolonkin; Richard Cathcart

    2007-01-05T23:59:59.000Z

    Offered is a new type of low-cost aerial pipeline for delivery of natural gas, an important industrial and residential fuel, and freshwater as well as other payloads over long distances. The offered pipeline dramatically decreases the construction and operation costs and the time necessary for pipeline construction. A dual-use type of freight pipeline can improve an arid rural environment landscape and provide a reliable energy supply for cities. Our aerial pipeline is a large, self-lofting flexible tube disposed at high altitude. Presently, the term "natural gas" lacks a precise technical definition, but the main components of natural gas are methane, which has a specific weight less than air. A lift force of one cubic meter of methane equals approximately 0.5 kg. The lightweight film flexible pipeline can be located in the Earth-atmosphere at high altitude and poses no threat to airplanes or the local environment. The authors also suggest using lift force of this pipeline in tandem with wing devices for cheap shipment of a various payloads (oil, coal and water) over long distances. The article contains a computed macroproject in northwest China for delivery of 24 billion cubic meter of gas and 23 millions tonnes of water annually.

  2. Scientific system for high-resolution measurement of the circumsolar radiation

    SciTech Connect (OSTI)

    Schrott, Simeon, E-mail: thomas.schmidt@ise.fraunhofer.de; Schmidt, Thomas, E-mail: thomas.schmidt@ise.fraunhofer.de; Hornung, Thorsten, E-mail: thomas.schmidt@ise.fraunhofer.de; Nitz, Peter, E-mail: thomas.schmidt@ise.fraunhofer.de [Fraunhofer Institute for Solar Energy Systems ISE, Freiburg (Germany)

    2014-09-26T23:59:59.000Z

    We developed a camera based system for measurements of the circumsolar radiation with a high angular resolution of 0.1 mrad. Subsequent measurements may be taken at intervals as short as 15 s. In this publication we describe the optical system in detail and discuss some aspects of the measurement method. First results from two days of measurement at Freiburg i. Br., Germany, are presented and compared to data from literature. The good results encourage us to perform longer measurement campaigns in future to better understand the influence of circumsolar radiation on the power yield of concentrating photovoltaic systems.

  3. Solar System impact rates measured from lunar spherule ages

    E-Print Network [OSTI]

    Muller, Richard A.

    . The samples were irradiated with fast neutrons for 100 hours at the Oregon State University Reactor. Each measured using a MAP 215-C noble gas mass spectrometer. Spherule ages were determined using the 40 Ar/39 Ar

  4. Reliability as a measure of transportation system performance

    E-Print Network [OSTI]

    Jackson, Dena Delise

    2000-01-01T23:59:59.000Z

    This investigation involved a comparative analysis to assess the quantitative and qualitative characteristics of seven previously proposed methods of measuring travel time reliability. For each method, reliability was calculated using a l2-week...

  5. New Real-Time Quantum Efficiency Measurement System: Preprint

    SciTech Connect (OSTI)

    Young, D. L.; Egaas, B.; Pinegar, S.; Stradins, P.

    2008-05-01T23:59:59.000Z

    This paper describes a newly developed technique for measuring the quantum eficiiency in solar cells in real-time using a unique, electronically controlled, full-spectrum light source.

  6. Semi-automatic system for ultrasonic measurement of texture

    DOE Patents [OSTI]

    Thompson, R.B.; Wormley, S.J.

    1991-09-17T23:59:59.000Z

    A means and method are disclosed for ultrasonic measurement of texture nondestructively and efficiently. Texture characteristics are derived by transmitting ultrasound energy into the material, measuring the time it takes to be received by ultrasound receiving means, and calculating velocity of the ultrasound energy from the timed measurements. Textured characteristics can then be derived from the velocity calculations. One or more sets of ultrasound transmitters and receivers are utilized to derive velocity measurements in different angular orientations through the material and in different ultrasound modes. An ultrasound transmitter is utilized to direct ultrasound energy to the material and one or more ultrasound receivers are utilized to receive the same. The receivers are at a predetermined fixed distance from the transmitter. A control means is utilized to control transmission of the ultrasound, and a processing means derives timing, calculation of velocity and derivation of texture characteristics. 5 figures.

  7. attitude measurement system: Topics by E-print Network

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

    California eScholarship Repository Summary: system cooling and heating part load ratio to chillercooling tower electric andelectric and fossil fuel heating applications is a...

  8. accurate measuring system: Topics by E-print Network

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

    Modules Engineering Websites Summary: --Integrating residential photovoltaic (PV) power generation and energy storage systems into the Smart Grid is an effective way of...

  9. System Energy Assessment (SEA), Defining a Standard Measure of EROI for Energy Businesses as Whole Systems

    E-Print Network [OSTI]

    Henshaw, Philip F; Zarnikau, Jay

    2011-01-01T23:59:59.000Z

    A more objective method for measuring the energy needs of businesses, System Energy Assessment (SEA), identifies the natural boundaries of businesses as self-managing net-energy systems, of controlled and self-managing parts. The method is demonstrated using a model Wind Farm case study, and applied to defining a true physical measure of its energy productivity for society (EROI-S), the global ratio of energy produced to energy cost. The traceable needs of business technology are combined with assignable energy needs for all other operating services. That serves to correct a large natural gap in energy use information. Current methods count traceable energy receipts for technology use. Self-managing services employed by businesses outsource their own energy needs to operate, and leave no records to trace. Those uncounted energy demands are often 80% of the total embodied energy of business end products. The scale of this "dark energy" was discovered from differing global accounts, and corrected so the average...

  10. Aerial Righting, Directed Aerial Descent, and Maneuvering in the Evolution of Flight in Birds

    E-Print Network [OSTI]

    Evangelista, Dennis Jose

    2013-01-01T23:59:59.000Z

    use of a force sensor and 3D printer. Chapter 4 Disturbancewere then output to a 3D printer (ProJet HD 3000; 3D Systems

  11. Development of an automated efficiency and loss measurement system for high-efficiency power converters

    E-Print Network [OSTI]

    Cheung, Grace M

    2010-01-01T23:59:59.000Z

    When building a high performance power converter system, characterization becomes a significant task in and of itself. This thesis addresses the development of an automated efficiency and loss measurement system for ...

  12. System for interferometric distortion measurements that define an optical path

    DOE Patents [OSTI]

    Bokor, Jeffrey; Naulleau, Patrick

    2003-05-06T23:59:59.000Z

    An improved phase-shifting point diffraction interferometer can measure both distortion and wavefront aberration. In the preferred embodiment, the interferometer employs an object-plane pinhole array comprising a plurality of object pinholes located between the test optic and the source of electromagnetic radiation and an image-plane mask array that is positioned in the image plane of the test optic. The image-plane mask array comprises a plurality of test windows and corresponding reference pinholes, wherein the positions of the plurality of pinholes in the object-plane pinhole array register with those of the plurality of test windows in image-plane mask array. Electromagnetic radiation that is directed into a first pinhole of object-plane pinhole array thereby creating a first corresponding test beam image on the image-plane mask array. Where distortion is relatively small, it can be directly measured interferometrically by measuring the separation distance between and the orientation of the test beam and reference-beam pinhole and repeating this process for at least one other pinhole of the plurality of pinholes of the object-plane pinhole array. Where the distortion is relative large, it can be measured by using interferometry to direct the stage motion, of a stage supporting the image-plane mask array, and then use the final stage motion as a measure of the distortion.

  13. CHAPTERS 3 AND 4:CHAPTERS 3 AND 4: Aerial PhotographyAerial Photography

    E-Print Network [OSTI]

    Gilbes, Fernando

    . (copyright Gernsheim Collection, Harry Ransom Humanities Research Center, University of Texas) Camera Sensor SystemsCamera Sensor Systems Louis Jacques Mande Daguerre One of the first commercially available box of WW I trenches in Europe. Examination of stereoscopic photography revealed the location of men, gun

  14. Method of detecting system function by measuring frequency response

    DOE Patents [OSTI]

    Morrison, John L.; Morrison, William H.; Christophersen, Jon P.; Motloch, Chester G.

    2013-01-08T23:59:59.000Z

    Methods of rapidly measuring an impedance spectrum of an energy storage device in-situ over a limited number of logarithmically distributed frequencies are described. An energy storage device is excited with a known input signal, and a response is measured to ascertain the impedance spectrum. An excitation signal is a limited time duration sum-of-sines consisting of a select number of frequencies. In one embodiment, magnitude and phase of each frequency of interest within the sum-of-sines is identified when the selected frequencies and sample rate are logarithmic integer steps greater than two. This technique requires a measurement with a duration of one period of the lowest frequency. In another embodiment, where selected frequencies are distributed in octave steps, the impedance spectrum can be determined using a captured time record that is reduced to a half-period of the lowest frequency.

  15. Apparatus for thermal performance measurements of insulated roof systems

    SciTech Connect (OSTI)

    Courville, G.E.; Childs, K.W.; Walukas, D.J.; Childs, P.W.; Griggs, E.I.

    1984-01-01T23:59:59.000Z

    The US Department of Energy conducted thermal performance measurements on low-slope roofs with a recently developed field test apparatus at Oak Ridge National Laboratory (ORNL). The apparatus accommodates four 4 ft x 8 ft test specimens and includes the measurement capabilities for specimen temperatures, temperature gradients, heat flows and moisture content. A weather station characterizes outdoor weather conditions. Tests underway include (1) validation of a roof surface temperature model developed to study the effects of wet insulation; (2) measurement of temperature distributions and heat transfer in high R-value roofs; and (3) validation of an analysis of the effectiveness of high reflectance surfaces. Preliminary experimental results are presented and correlations between experiment and modeling are discussed.

  16. Multi-area power system state estimation utilizing boundary measurements and phasor measurement units ( PMUs) 

    E-Print Network [OSTI]

    Freeman, Matthew A

    2006-10-30T23:59:59.000Z

    The objective of this thesis is to prove the validity of a multi-area state estimator and investigate the advantages it provides over a serial state estimator. This is done utilizing the IEEE 118 Bus Test System as a sample system. This thesis...

  17. The high-speed after pulse measurement system for PMT

    E-Print Network [OSTI]

    Yaping Cheng; Sen Qian; Zhe Ning; Jingkai Xia; Wenwen Wang; Yifang Wang; Jun Cao; Xiaoshan Jiang; Zheng Wang; Xiaonan Li; Ming Qi; Yuekun Heng; Shulin Liu; Xiangcui Lei; Zhi Wu

    2014-04-24T23:59:59.000Z

    A system employing a desktop FADC has been developed to investigate the features of 8 inches Hamamatsu PMT. The system stands out for its high-speed and informative results as a consequence of adopting fast waveform sampling technology. Recording full waveforms allows us to perform digital signal processing, pulse shape analysis, and precision timing extraction. High precision after pulse time and charge distribution characteristics are presented in this manuscript. Other photomultipliers characteristics, such as dark rate and transit time spread, can also be obtained by exploiting waveform analysis using this system.

  18. Systems and methods for selective hydrogen transport and measurement

    DOE Patents [OSTI]

    Glatzmaier, Gregory C

    2013-10-29T23:59:59.000Z

    Systems and methods for selectively removing hydrogen gas from a hydrogen-containing fluid volume are disclosed. An exemplary system includes a proton exchange membrane (PEM) selectively permeable to hydrogen by exclusively conducting hydrogen ions. The system also includes metal deposited as layers onto opposite sides or faces of the PEM to form a membrane-electrode assembly (MEA), each layer functioning as an electrode so that the MEA functions as an electrochemical cell in which the ionic conductors are hydrogen ions, and the MEA functioning as a hydrogen selective membrane (HSM) when located at the boundary between a hydrogen-containing fluid volume and a second fluid.

  19. Using Architectural Properties to Model and Measure System-Wide Graceful Degradation

    E-Print Network [OSTI]

    Koopman, Philip

    Using Architectural Properties to Model and Measure System-Wide Graceful Degradation ABSTRACT System-wide graceful degradation may be a viable approach to improving dependability in computer systems. In order to evaluate and improve system-wide graceful degradation we present initial work on a component

  20. Measuring the mechanical properties of the respiratory system in patients

    E-Print Network [OSTI]

    Hayden, Nancy J.

    the lungs such that their frequency content lies in a range above that encompassed by the regular's lungs. · Only system capable of convenient, ongoing assessment of respiratory mechanical function

  1. Measured Off-Grid LED Lighting System Performance

    E-Print Network [OSTI]

    Granderson, Jessica

    2009-01-01T23:59:59.000Z

    Budget: The Economics of Off-Grid Lighting for SmallA. Jacobson. 2007. "The Off-Grid Lighting Market in WesternTesting for Emerging Off-grid White-LED Illumination Systems

  2. Measuring space systems flexibility : a comprehensive six-element framework

    E-Print Network [OSTI]

    Nilchiani, Roshanak

    2005-01-01T23:59:59.000Z

    Space systems are extremely delicate and costly engineering artifacts that take a long time to design, manufacture, and launch into space and after they are launched, there is limited access to them. Millions of dollars ...

  3. Design, measurement, and analysis of oxygenated fluid pump system

    E-Print Network [OSTI]

    Mason, Alexander M., IV (Alexander Martin)

    2012-01-01T23:59:59.000Z

    The author sought out the opportunity to design and implement a system for pumping oxygenated fluid and mixing it with saline, for the purpose of providing sufficient levels of oxygen for patients undergoing forms of ...

  4. Measurement of Temperature Profile in the Reactor Cavity Cooling System

    E-Print Network [OSTI]

    Alhashimi, Tariq Yaqoob Sayed

    2014-12-02T23:59:59.000Z

    welded to the upper plenum which has two exhaust chimneys. Blowers are used to drive air through in-line heaters which are connected to the bottom end of the riser ducts. Experiments were conducted to measure the temperature spatial profile in the plenum...

  5. Experimental Evaluation of New Generation Aggregate Image Measurement System

    E-Print Network [OSTI]

    Gates, Leslie L.

    2010-07-14T23:59:59.000Z

    . 2003). The current Superpave methods do not measure aggregates texture, although it has significance influence on performance (Fletcher et al. 2002). In some cases, the fine aggregate angularity method does not distinguish between poor and high...) ......................................................... 14 Sphericity Index (3D Form Analysis) ................................................. 14 Sensitivity, Repeatability, and Reproducibility of AIMS ................................ 15 CHAPTER III IMPROVEMENTS OF THE AGGREGATE IMAGE...

  6. Multi-area power system state estimation utilizing boundary measurements and phasor measurement units ( PMUs)

    E-Print Network [OSTI]

    Freeman, Matthew A

    2006-10-30T23:59:59.000Z

    investigates the benefits that stem from utilizing a multi-area state estimator instead of a serial state estimator. These benefits are largely in the form of increased accuracy and decreased processing time. First, the theory behind power system state...

  7. Impulsive observer-based control for linear systems using irregularly sampled measurements

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Impulsive observer-based control for linear systems using irregularly sampled measurements Y linear state feedback controller and an impulsive observer to provide an estimate the non-measured states, which are subsequently fed back in the control algorithm. We consider linear systems that can

  8. THEORY OF DYNAMICAL SYSTEMS AND GENERAL TRANSFORMATION GROUPS WITH INVARIANT MEASURE

    E-Print Network [OSTI]

    Katok, Svetlana

    THEORY OF DYNAMICAL SYSTEMS AND GENERAL TRANSFORMATION GROUPS WITH INVARIANT MEASURE A. B. Katok, Ya. G. Sinai, and A. M. Stepin UDC 513.83:513.88+517.9+519.4 INTRODUCTION The theory of dynamical systems with invariant measure, or ergodic theory, is one of those domains of mathematics whose form

  9. Improving Control System Cyber-State Awareness using Known Secure Sensor Measurements

    SciTech Connect (OSTI)

    Ondrej Linda; Milos Manic; Miles McQueen

    2012-09-01T23:59:59.000Z

    Abstract—This paper presents design and simulation of a low cost and low false alarm rate method for improved cyber-state awareness of critical control systems - the Known Secure Sensor Measurements (KSSM) method. The KSSM concept relies on physical measurements to detect malicious falsification of the control systems state. The KSSM method can be incrementally integrated with already installed control systems for enhanced resilience. This paper reviews the previously developed theoretical KSSM concept and then describes a simulation of the KSSM system. A simulated control system network is integrated with the KSSM components. The effectiveness of detection of various intrusion scenarios is demonstrated on several control system network topologies.

  10. Fast Tune Measurement System for the ELETTRA Booster

    E-Print Network [OSTI]

    Ferianis, M; Iazzourene, F

    2003-01-01T23:59:59.000Z

    Since several years, the Diagnostic Group at Laboratori Nazionali di Legnaro (LNL) has been designing Fast Faraday Cups (FFC) to be used on their Heavy Ion Accelerators; latest developments in this field include a stripline FFC, jointly developed with SNS, Oak Ridge. A collaborative partnership has been set-up between LNL and ELETTRA Laboratory to fully characterize new FFCs, using as electron source the ELETTRA 1 GeV Linac. Two FFCs, the stripline FFC, built at SNS, and a coaxial FFC, made at LNL, have been installed at ELETTRA who provided the wideband data acquisition and the remote control of the measurement. The first measurements carried out using 1 GHz oscilloscope allowed the proper set-up of remote control and a low jitter triggering. Wideband measurements were performed with a sampling scope equipped with 50 GHz head whereas the bandwidth of the stripline FFC is in the order of 10 GHz. A complete set of tests has been carried both on the coaxial FFC and on the stripline FFC. Thanks to the informatio...

  11. Evaluation of machine vision systems for measurement applications

    E-Print Network [OSTI]

    Cachat, John Michael

    1984-01-01T23:59:59.000Z

    environment and is applioable to any MVS, The methodology involves compiling vendor and equipment information with data oollection sheets developed in this thesis and then summarises both qualitative and quantitative data into an overall evaluation graph... performance parameters datasheet. . . . . . . . . . . 24 5 ~ MVS system oost datasheet. 25 General HVS vendor information datasheet. . . . . . . 28 7 ~ MVS vendor reference list datasheet. . . . . . . . . . . . 29 8. HVS vendor reference Questions...

  12. Measured Performance of Energy-Efficient Computer Systems

    E-Print Network [OSTI]

    Floyd, D. B.; Parker, D. S.

    1996-01-01T23:59:59.000Z

    climate. Recent surveys have shown that the use of personal computer systems in commercial office buildings is expanding rapidly. The energy consumption of such a growing end-use also has a significant impact on the total building power demand. In warmer...

  13. VI International SAUM Conference on Systems, Automatic Control and Measurements

    E-Print Network [OSTI]

    Gajic, Zoran

    and filtering tasks into pure­slow and pure­fast time scales. The presented methodol­ ogy eliminates numerical into the design procedures, allows independent parallel processing of informa­ tion in slow and fast time scales, aircrafts, robots, electrical cir­ cuits, power systems, nuclear reactors, chemical reactors, dc

  14. Monogamy of $?$th Power Entanglement Measurement in Qubit Systems

    E-Print Network [OSTI]

    Yu Luo; Yongming Li

    2015-04-30T23:59:59.000Z

    In this paper, we study the $\\alpha$th power monogamy properties related to the entanglement measure in bipartite states. The monogamy relations related to the $\\alpha$th power of negativity and the Convex- Roof Extended Negativity are obtained for N-qubit states. We also give a tighter bound of hierarchical monogamy inequality for the entanglement of formation. We find that the GHZ state and W state can be used to distinguish the $\\alpha$th power the concurrence for $0<\\alpha<2$. Furthermore, we compare concurrence with negativity in terms of monogamy property and investigate the difference between them.

  15. PVT Compensation for Wilkinson Single-Slope Measurement Systems

    SciTech Connect (OSTI)

    Britton Jr, Charles L [ORNL; Ericson, Milton Nance [ORNL; Blalock, Benjamin [University of Tennessee, Knoxville (UTK); Tham, Kevin [Intel Corporation; Ulaganathan, Chandradevi [University of Tennessee, Knoxville (UTK); Greenwell, Robert E [ORNL; Holleman, Jeremy [University of Tennessee, Knoxville (UTK)

    2012-01-01T23:59:59.000Z

    A pulse-width locked loop (PWLL) circuit is reported that compensates for process, voltage, and temperature (PVT) variations of a linear ramp generator within a 12-bit multi-channel Wilkinson (single-slope integrating) Analog-to-Digital (ADC). This PWLL was designed and fabricated in a 0.5- m Silicon Germanium (SiGe) BiCMOS process. Simulation and silicon measurement data are shown that demonstrate a large improvement in the accuracy of the PVT-compensated ADC over the uncompensated ADC.

  16. Securing Wide Area Measurement Systems | 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.pdfBreakingMay 2015ParentsMiddle| DepartmentAchievementEnergyWide Area Measurement

  17. Algebra of fundamental measurements as a basis of dynamics of economic systems

    E-Print Network [OSTI]

    Igor Tuluzov; Sergiy Melnyk

    2012-08-31T23:59:59.000Z

    We propose an axiomatic approach to constructing the dynamics of systems, in which one the main elements is the consciousness of a subject. The main axiom is the statements that the state of consciousness is completely determined by the results of measurements performed on it. In case of economic systems we propose to consider an offer of transaction as a fundamental measurement. Transactions with delayed choice, discussed in this paper, represent a logical generalization of incomplete transactions and allow for a more rigorous approach to studying the properties of the algebra of economic measurements. Considering the behavior of an object as a sequence of actions and choices allows extending the obtained results to random systems, which include the subject's consciousness as one of its elements. The specifics, on which the description of fundamental measurements is based, allows easily transferring the formalism of Schwinger's theory of selective measurements (and the consequent quantum-mechanical formalism) to the economic and social systems.

  18. Techniques for Mercury Control and Measurement in Gasification Systems

    SciTech Connect (OSTI)

    Granite, E.J.; King, W.P.; Pennline, H.W.

    2002-09-20T23:59:59.000Z

    A major concern for power systems that use coal as an energy source is the air emissions from the plant. Although certain air emissions are currently regulated, the emergence of new regulations for other pollutants are on the horizon. Gasification is an important strategy for increasing the utilization of abundant domestic coal reserves. The Department of Energy envisions increased use of gasification in the United States during the next twenty years. As such, the DOE Gasification Technologies Program will strive to approach a near-zero emissions goal with respect to pollutants. The mercury research detailed in this proposal addresses the Gas Cleaning and Conditioning program technology area.

  19. Development of a Transportable, 1065-Compliant Emissions Measurement System

    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:Revised Finding of No53197E T A * S HBatteries withAbstractSystemHydrocarbon|

  20. The future of GPS-based electric power system measurements, operation and control

    SciTech Connect (OSTI)

    Rizy, D.T. [Oak Ridge National Lab., TN (United States); Wilson, R.E. [Western Area Power Administration, Golden, CO (United States); Martin, K.E.; Litzenberger, W.H. [Bonneville Power Administration, Portland, OR (United States); Hauer, J.F. [Pacific Northwest National Lab., Richland, WA (United States); Overholt, P.N. [Dept. of Energy, Washington, DC (United States); Sobajic, D.J. [Electric Power Research Inst., Palo Alto, CA (United States)

    1998-11-01T23:59:59.000Z

    Much of modern society is powered by inexpensive and reliable electricity delivered by a complex and elaborate electric power network. Electrical utilities are currently using the Global Positioning System-NAVSTAR (GPS) timekeeping to improve the network`s reliability. Currently, GPS synchronizes the clocks on dynamic recorders and aids in post-mortem analysis of network disturbances. Two major projects have demonstrated the use of GPS-synchronized power system measurements. In 1992, the Electric Power Research Institute`s (EPRI) sponsored Phase Measurements Project used a commercially available Phasor Measurements Unit (PMU) to collect GPS-synchronized measurements for analyzing power system problems. In 1995, Bonneville Power Administration (BPA) and Western Area Power Administration (WAPA) under DOE`s and EPRI`s sponsorship launched the Wide Area Measurements (WAMS) project. WAMS demonstrated GPS-synchronized measurements over a large area of their power networks and demonstrated the networking of GPS-based measurement systems in BPA and WAPA. The phasor measurement technology has also been used to conduct dynamic power system tests. During these tests, a large dynamic resistor was inserted to simulate a small power system disturbance.

  1. Diagnostics and Measurements of Infiltration and Ventilation Systems in High-Rise Apartment Buildings

    E-Print Network [OSTI]

    Diamond, Richard

    Diagnostics and Measurements of Infiltration and Ventilation Systems in High-Rise Apartment without compromising air quality? We have been studying the air flows and ventilation systems in high systems that are neither efficient nor deliver satisfactory ventilation. Frequent problems include

  2. On the Failure of Power System Automatic Generation Control due to Measurement Noise

    E-Print Network [OSTI]

    Liberzon, Daniel

    understood, the electric grid could become more vulnerable to failures in both cyber and physical components-level automatic closed-loop control system over the IT infrastructure of a power system [1], is sensitive1 On the Failure of Power System Automatic Generation Control due to Measurement Noise Jiangmeng

  3. Measurement based Voltage Stability Monitoring of Power system Garng M. Huang

    E-Print Network [OSTI]

    Measurement based Voltage Stability Monitoring of Power system Garng M. Huang huang Station, TX 77843-3128 Abstract: Many papers discuss the voltage stability assessment of power system. The problem of voltage stability may be simply explained as inability of the power system to provide

  4. Automated Measurement and Signaling Systems for the Transactional Network

    SciTech Connect (OSTI)

    Piette, Mary Ann; Brown, Richard; Price, Phillip; Page, Janie; Granderson, Jessica; Riess, David; Czarnecki, Stephen; Ghatikar, Girish; Lanzisera, Steven

    2013-12-31T23:59:59.000Z

    The Transactional Network Project is a multi-lab activity funded by the US Department of Energy?s Building Technologies Office. The project team included staff from Lawrence Berkeley National Laboratory, Pacific Northwest National Laboratory and Oak Ridge National Laboratory. The team designed, prototyped and tested a transactional network (TN) platform to support energy, operational and financial transactions between any networked entities (equipment, organizations, buildings, grid, etc.). PNNL was responsible for the development of the TN platform, with agents for this platform developed by each of the three labs. LBNL contributed applications to measure the whole-building electric load response to various changes in building operations, particularly energy efficiency improvements and demand response events. We also provide a demand response signaling agent and an agent for cost savings analysis. LBNL and PNNL demonstrated actual transactions between packaged rooftop units and the electric grid using the platform and selected agents. This document describes the agents and applications developed by the LBNL team, and associated tests of the applications.

  5. Biogeochemistry of Isotopically-distinct Sources of Lead in a Former WWII Aerial Gunnery Range

    E-Print Network [OSTI]

    McBee, Jayme M

    2014-01-08T23:59:59.000Z

    Isotopic composition and concentrations of Pb are used to identify sources of anthropogenic and natural Pb and to assess Pb bioavailability in soils and native plants at a former military installation that served as a WWII era aerial gunnery range...

  6. E-Print Network 3.0 - autonomous aerial vehicle Sample Search...

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

    by the European Union under the 7th Framework Programme Summary: behavior of vehicles Automation of aerial vehicles PAVs should be autonomous to a very high degree... design of...

  7. E-Print Network 3.0 - aerial vehicle piloting Sample Search Results

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

    the European Union under the 7th Framework Programme Summary: design of a Personal Aerial Vehicle The myCopter project will investigate User-centered design of human... , Max...

  8. E-Print Network 3.0 - aerial vehicle air Sample Search Results

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

    "Designing the air vehicle is only a relative small part... design of a Personal Aerial Vehicle The myCopter project will investigate User-centered design of human... , Max...

  9. Auditory Decision Aiding in Supervisory Control of Multiple Unmanned Aerial Vehicles

    E-Print Network [OSTI]

    Donmez, B.

    2009-01-01T23:59:59.000Z

    This paper investigates the effectiveness of sonification, continuous auditory alert mapped to the state of a monitored task, in supporting unmanned aerial vehicle (UAV) supervisory control. Background: UAV supervisory ...

  10. Effect of auditory peripheral displays on unmanned aerial vehicle operator performance

    E-Print Network [OSTI]

    Graham, Hudson D

    2008-01-01T23:59:59.000Z

    With advanced autonomy, Unmanned Aerial Vehicle (UAV) operations will likely be conducted by single operators controlling multiple UAVs. As operator attention is divided across multiple supervisory tasks, there is a need ...

  11. Resist-based measurement of contrast transfer function in a 0.3-NAmicrofield optic

    SciTech Connect (OSTI)

    Cain, Jason P.; Naulleau, Patrick; Spanos, Costas J.

    2005-01-11T23:59:59.000Z

    Although extreme ultraviolet (EUV) lithography offers the possibility of very high-resolution patterning, the projection optics must be of extremely high quality in order to meet this potential. One key metric of the projection optic quality is the contrast transfer function (CTF), which is a measure of the aerial image contrast as a function of pitch. A static microfield exposure tool based on the 0.3-NA MET optic and operating at a wavelength of 13.5 nm has been installed at the Advanced Light Source, a synchrotron facility at the Lawrence Berkeley National Laboratory. This tool provides a platform for a wide variety of research into EUV lithography. In this work we present resist-based measurements of the contrast transfer function for the MET optic. These measurements are based upon line/space patterns printed in several different EUV photoresists. The experimental results are compared with the CTF in aerial-image simulations using the aberrations measured in the projection optic using interferometry. In addition, the CTF measurements are conducted for both bright-field and dark-field mask patterns. Finally, the orientation dependence of the CTF is measured in order to evaluate the effect of non-rotationally symmetric lens aberrations. These measurements provide valuable information in interpreting the results of other experiments performed using the MET and similar systems.

  12. Data acquisition system time measurement capabilities using WorkBench[trademark] software

    SciTech Connect (OSTI)

    Coutts, D.A.

    1992-04-01T23:59:59.000Z

    There is an increasing interest in the ability to measure transient behavior in the Heat Transfer Laboratory (HTL). To accomplish this the timing system behavior for the Data Acquisition Systems (DAS) must be evaluated. This report discusses the evaluation of a DAS timing system using WorkBench[trademark] Software in a Macintosh II environment. It also describes a method which can be successfully used to calibrate the timing system associated with the DAS.

  13. Data acquisition system time measurement capabilities using WorkBench{trademark} software

    SciTech Connect (OSTI)

    Coutts, D.A.

    1992-04-01T23:59:59.000Z

    There is an increasing interest in the ability to measure transient behavior in the Heat Transfer Laboratory (HTL). To accomplish this the timing system behavior for the Data Acquisition Systems (DAS) must be evaluated. This report discusses the evaluation of a DAS timing system using WorkBench{trademark} Software in a Macintosh II environment. It also describes a method which can be successfully used to calibrate the timing system associated with the DAS.

  14. Measurement-Measurement-

    E-Print Network [OSTI]

    Jeong, Jaehoon "Paul"

    Internet Measurement- System A Measurement- System B Control System GPS Satellite GPS Satellite GPS Receiver GPS Receiver 2) measurement 3) data1) command Methodology for One-way IP Performance Measurement This paper proposes a methodology for measurement of one-way IP performance metrics such as one-way delay

  15. A system for the real time, direct measurement of natural gas flow

    SciTech Connect (OSTI)

    Sowell, T. [PMI, Badger Meter, Inc., Tulsa, OK (United States)

    1995-12-31T23:59:59.000Z

    PMI/Badger Meter, Inc. with partial sponsorship from the Gas Research Institute, has designed and developed direct measurement total energy flow metering instrumentation. As industry demands for improved accuracy and speed of measurement have increased so has the complexity of the overall hardware and software systems. Considering traditional system approaches, few companies have the in house capability of maintaining a complete system. This paper addresses efforts to implement a direct, total gas energy flow metering system which is simple to use and cost effective.

  16. Model-Based Methodology for Building Confidence in a Dynamic Measuring System

    E-Print Network [OSTI]

    Reese, Isaac Mark

    2013-05-03T23:59:59.000Z

    of several proposed design changes. The findings suggest that the dynamic measurement system has a maximum velocity of 28 fps, and that this maximum velocity is unaffected by the track length or the mass of the moving carriage....

  17. A PLL-Based Frequency Shift Measurement System for Chemical and Biological Sensing 

    E-Print Network [OSTI]

    Torke, William

    2012-02-14T23:59:59.000Z

    A PLL-based frequency shift measurement system for chemical and biological sensing was developed and implemented in the form of two discrete electronic assemblies. One of the assemblies consists of a VCO which contains a ...

  18. From free energy measurements to free energy inference in small systems Felix Ritort

    E-Print Network [OSTI]

    Potsdam, Universität

    From free energy measurements to free energy inference in small systems the knowledge of the free energy of nucleic acid and protein structures the free energy of pure equilibrium states, FTs have been extended

  19. The Development of an Accuracy of a Doppler Global System for One Dimensional Velocity Measurement

    E-Print Network [OSTI]

    Karabacak, Mustafa

    2014-05-23T23:59:59.000Z

    shifting of the light frequency reflected by seeded particles or rotating disc surface speed. The relationship between the Doppler shift and the transmission ratio is a key part of the DGV system to calculate measured velocity. The absorption line filter...

  20. Ground state cooling of quantum systems via a one-shot measurement

    E-Print Network [OSTI]

    P. V. Pyshkin; Da-Wei Luo; J. Q. You; Lian-Ao Wu

    2015-03-13T23:59:59.000Z

    We prove that there exists a family of quantum systems that can be cooled to their ground states by a one-shot projective measurement on the ancillas coupled to these systems. Consequently, this proof gives rise to the conditions for achieving the one-shot measurement ground-state cooling (OSMGSC). We also propose a general procedure for finding unitary propagators and corresponding Hamiltonians to realize such cooling by means of inverse engineering technique.

  1. System Performance Measurement Supports Design Recommendations for Solar Ventilation Preheat System (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-08-01T23:59:59.000Z

    Technical briefing to report the outcomes of a data monitoring effort to determine the nature of solar vent preheat system performance problems at a U.S. military installation. The analysis reports up-to-date research and findings regarding system design, helping to clarify the issue as a factor of system design, rather than a shortcoming of SVP systems.

  2. Evaluation of outer flaws in titanium alloys using eddy current measuring system

    SciTech Connect (OSTI)

    Chady, T.; Psuj, G.; Kowalczyk, J. [Department of Electrical and Computer Engineering, West Pomeranian University of Technology in Szczecin, ul. Sikorskiego 37, 70-313 Szczecin (Poland)

    2011-06-23T23:59:59.000Z

    In this paper results of shallow outer flaw detection in thick titanium alloy specimens is presented. In order to increase efficiency of inspections of minor defects an eddy current measuring system with a lock-in amplifier was used. The measurements were carried out for flat and cylindrical specimens with artificial flaws.

  3. UW -Center for Intelligent Materials and Systems 1 1-D Heat Flow Measurement

    E-Print Network [OSTI]

    Taya, Minoru

    : Calibrate Seebeck Coefficient for TFTC(Thin Film Thermocouples) x y Heater (70°C) Water (19°C) #12;UW ANSYS Simulation Used Data Water Temp. 2 Measured Temp. (Channel 14, 15) Heater size Assumption. Factor 2.258 #12;UW - Center for Intelligent Materials and Systems 3 2-D Heat Flow Measurement x y Heater

  4. Field measurements of interactions between furnaces and forced air distribution systems

    E-Print Network [OSTI]

    of equipment that provides the heating energy (the furnace, boiler or heat pump) and the method usedLBNL 40587 Field measurements of interactions between furnaces and forced air distribution systems Vol. 104 Part 1 Field measurements of interactions between furnaces and forced air distribution

  5. Automated measurement system employing eddy currents to adjust probe position and determine metal hardness

    DOE Patents [OSTI]

    Prince, J.M.; Dodson, M.G.; Lechelt, W.M.

    1989-07-18T23:59:59.000Z

    A system for measuring the hardness of cartridge cases employs an eddy current probe for inducing and sensing eddy currents in each cartridge case. A first component of the sensed signal is utilized in a closed loop system for accurately positioning the probe relative to the cartridge case both in the lift off direction and in the tangential direction, and a second component of the sensed signal is employed as a measure of the hardness. The positioning and measurement are carried out under closed loop microprocessor control facilitating hardness testing on a production line basis. 14 figs.

  6. Automated measurement system employing eddy currents to adjust probe position and determine metal hardness

    DOE Patents [OSTI]

    Prince, James M. (Kennewick, WA); Dodson, Michael G. (Richland, WA); Lechelt, Wayne M. (Benton City, WA)

    1989-01-01T23:59:59.000Z

    A system for measuring the hardness of cartridge cases employs an eddy current probe for inducing and sensing eddy currents in each cartridge case. A first component of the sensed signal is utilized in a closed loop system for accurately positioning the probe relative to the cartridge case both in the lift off direction and in the tangential direction, and a second component of the sensed signal is employed as a measure of the hardness. The positioning and measurement are carried out under closed loop microprocessor control facilitating hardness testing on a production line basis.

  7. Liouville's Theorem and the canonical measure for nonconservative systems from contact geometry

    E-Print Network [OSTI]

    Alessandro Bravetti; Diego Tapias

    2014-11-28T23:59:59.000Z

    Standard statistical mechanics of conservative systems relies on the symplectic geometry of the phase space. This is exploited to derive Hamilton's equations, Liouville's theorem and to find the canonical invariant measure. In this work we assume the phase space of nonconservative systems to have a contact geometry. In this way we can find out the generalized Hamilton's equations, Liouville's theorem and the unique canonical measure invariant under the contact flow. Remarkably, such measure has a power law density distribution with respect to the standard contact volume form. Finally, we argue on the several possible applications of our results.

  8. Evaluation of solar radiation measurement systems: EPRI/NREL final test report. Volume 1

    SciTech Connect (OSTI)

    Stoffel, T.; Riordan, C.; Bigger, J.

    1992-11-01T23:59:59.000Z

    Measured solar radiation resource data are needed by electric utilities to evaluate the potential of renewable energy options like photovoltaics in their service territory. In this final test report, we document a cooperative project of the Electric Power Research Institute (EPRI) and the National Renewable Energy Laboratory (NREL) to compare available measurement system options for performing solar radiation resource assessments. We present the detailed results of a 6-month field comparison of thermopile-based pyranometer and pyrheliometer solar irradiance measurement systems with two different implementations of the rotating shadowband radiometer (RSR) concept installed at NREL`s Solar Radiation Research Laboratory (SRRL) in Golden, Colorado.

  9. Identifying the factors that contribute to the effectiveness of the Productivity Measurement and Enhancement System (ProMES) 

    E-Print Network [OSTI]

    David, Jose Hernan

    2004-11-15T23:59:59.000Z

    The Productivity Measurement and Enhancement System (ProMES) is a human resource intervention that provides feedback to members of an organizational unit via a measurement system constructed by the unit personnel. The ...

  10. MAR-CPS: Measurable Augmented Reality for Prototyping Cyber-Physical Systems

    E-Print Network [OSTI]

    Reif, Rafael

    MAR-CPS: Measurable Augmented Reality for Prototyping Cyber-Physical Systems Shayegan Omidshafiei in CPSs, hardware-in-the-loop experiments are an essential step for transitioning from simulations to real in the Aerospace Controls Laboratory at the Massachusetts Institute of Technology. This system, referred to as MAR-CPS

  11. A hybrid data acquisition system for magnetic measurements of accelerator magnets

    SciTech Connect (OSTI)

    Wang, X.; Hafalia, R.; Joseph, J.; Lizarazo, J.; Martchevsky, M.; Sabbi, G. L.

    2011-06-03T23:59:59.000Z

    A hybrid data acquisition system was developed for magnetic measurement of superconducting accelerator magnets at LBNL. It consists of a National Instruments dynamic signal acquisition (DSA) card and two Metrolab fast digital integrator (FDI) cards. The DSA card records the induced voltage signals from the rotating probe while the FDI cards records the flux increment integrated over a certain angular step. This allows the comparison of the measurements performed with two cards. In this note, the setup and test of the system is summarized. With a probe rotating at a speed of 0.5 Hz, the multipole coefficients of two magnets were measured with the hybrid system. The coefficients from the DSA and FDI cards agree with each other, indicating that the numerical integration of the raw voltage acquired by the DSA card is comparable to the performance of the FDI card in the current measurement setup.

  12. Plume measurement system (PLUMES) technical manual and data analysis procedures. Final report

    SciTech Connect (OSTI)

    Tubman, M.W.

    1995-02-01T23:59:59.000Z

    The PLUmes MEasurement System (PLUMES) was developed under the Measurement of Entrainment and Transport work unit, Dredging Research Program Technical Area 1, Analysis of Dredged Material Placed in Open Water, to monitor the transport of suspended sediment from dredging and dredged material disposal operations. This system can monitor the transport nearly synoptically, both horizontally and vertically. This report provides technical information on the overall system, guidance on locating specific information in the standard technical manuals provided by the manufacturers of the individual system components, technical information on special features of the system components not included in the manufacturer`s manuals, information on system operation and deployment procedures, descriptions of the PLUMES software, and information on the data analysis procedures.

  13. Direct measurement of the impulse in a magnetic thrust chamber system for laser fusion rocket

    SciTech Connect (OSTI)

    Maeno, Akihiro; Yamamoto, Naoji; Nakashima, Hideki [Interdisciplinary Graduate School of Engineering Science, Kyushu University, 6-1 Kasuga-kouen, Kasuga, Fukuoka 816-8580 (Japan); Fujioka, Shinsuke; Johzaki, Tomoyuki [Institute of Laser Engineering, Osaka University, Suita, Osaka 565-087 (Japan); Mori, Yoshitaka [Graduate School for the Creation of New Photonics Industries, Hamamatsu, Shizuoka 431-1202 (Japan); Sunahara, Atsushi [Institute for Laser Technology, Suita, Osaka 565-087 (Japan)

    2011-08-15T23:59:59.000Z

    An experiment is conducted to measure an impulse for demonstrating a magnetic thrust chamber system for laser fusion rocket. The impulse is produced by the interaction between plasma and magnetic field. In the experiment, the system consists of plasma and neodymium permanent magnets. The plasma is created by a single-beam laser aiming at a polystyrene spherical target. The impulse is 1.5 to 2.2 {mu}Ns by means of a pendulum thrust stand, when the laser energy is 0.7 J. Without magnetic field, the measured impulse is found to be zero. These results indicate that the system for generating impulse is working.

  14. Force measuring valve assemblies, systems including such valve assemblies and related methods

    DOE Patents [OSTI]

    DeWall, Kevin George (Pocatello, ID); Garcia, Humberto Enrique (Idaho Falls, ID); McKellar, Michael George (Idaho Falls, ID)

    2012-04-17T23:59:59.000Z

    Methods of evaluating a fluid condition may include stroking a valve member and measuring a force acting on the valve member during the stroke. Methods of evaluating a fluid condition may include measuring a force acting on a valve member in the presence of fluid flow over a period of time and evaluating at least one of the frequency of changes in the measured force over the period of time and the magnitude of the changes in the measured force over the period of time to identify the presence of an anomaly in a fluid flow and, optionally, its estimated location. Methods of evaluating a valve condition may include directing a fluid flow through a valve while stroking a valve member, measuring a force acting on the valve member during the stroke, and comparing the measured force to a reference force. Valve assemblies and related systems are also disclosed.

  15. SynchroPhasor Measurements: System Architecture and Performance Evaluation in Supporting Wide-Area Applications

    SciTech Connect (OSTI)

    Huang, Zhenyu; Dagle, Jeffery E.

    2008-07-31T23:59:59.000Z

    The infrastructure of phasor measurements have evolved over the last two decades from isolated measurement units to networked measurement systems with footprints beyond individual utility companies. This is, to a great extent, a bottom-up self-evolving process except some local systems built by design. Given the number of phasor measurement units (PMUs) in the system is small (currently 70 each in western and eastern interconnections), current phasor network architecture works just fine. However, the architecture will become a bottleneck when large number of PMUs are installed (e.g. >1000~10000). The need for phasor architecture design has yet to be addressed. This paper reviews the current phasor networks and investigates future architectures, as related to the efforts undertaken by the North America SynchroPhasor Initiative (NASPI). Then it continues to present staged system tests to evaluate the performance of phasor networks, which is a common practice in the Western Electricity Coordinating Council (WECC) system. This is followed by field measurement evaluation and the implication of phasor quality issues on phasor applications.

  16. Automated systems for measuring dose and radiation quality as a function of time

    SciTech Connect (OSTI)

    Braby, L.A.; Conroy, T.J.; Elegy, D.C.; Brackenbush, L.W. [Pacific Northwest Lab., Richland, WA (United States); Badhwar, G.D. [Johnson Space Center, Houston, TX (United States)

    1992-09-01T23:59:59.000Z

    A compact, modular, tissue equivalent proportional counter system has been developed for use in space. The data acquisition system consists of a microcomputer, multi channel analyzer, memory, and power converter on individual circuit cards which can be used in various combinations for specific measurement requirements. The system uses separate, interchangeable detectors, each with its preamplifier and shaping amplifier connected directly to the detector. The microprocessor provides the computing power of a personal computer, and utilizes an operating system which is compatible with a subset of MSDOS. Experiment procedures can be programmed in high level languages and down loaded to the microprocessor. A typical application, used to characterize the dose rates due to trapped radiations in space, monitors the dose rate and records energy deposition spectra frequently when the dose rate is high. The microprocessor also measures and records system operation characteristics such as MCA linearity, proportional counter gain, and power supply voltages on a periodic basis.

  17. Value-based performance measures for Hanford Tank Waste Remedition System (TWRS) Program

    SciTech Connect (OSTI)

    Keeney, R.L.; von Winterfeldt, D.

    1996-01-01T23:59:59.000Z

    The Tank Waste Remediation Systems (TWRS) Program is responsible for the safe storage, retrieval, treatment, and preparation for disposal of high-level waste currently stored in underground storage tanks at the Hanford site in Richland. The TWRS program has adopted a logical approach to decision making that is based on systems engineering and decision analysis (Westinghouse Hanford Company, 1995). This approach involves the explicit consideration of stakeholder values and an evaluation of the TWRS alternatives in terms of these values. Such evaluations need to be consistent across decisions. Thus, an effort was undertaken to develop a consistent, quantifiable set of measures that can be used by TVVRS to assess alternatives against the stakeholder values. The measures developed also met two additional requirements: 1) the number of measure should be relatively small; and 2) performance with respect to the measures should be relatively easy to estimate.

  18. Procedure for Measuring and Reporting the Performance of Photovoltaic Systems in Buildings

    SciTech Connect (OSTI)

    Pless, S.; Deru, M.; Torcellini, P.; Hayter, S.

    2005-10-01T23:59:59.000Z

    This procedure provides a standard method for measuring and characterizing the long-term energy performance of photovoltaic (PV) systems in buildings and the resulting implications to the building's energy use. The performance metrics determined here may be compared against benchmarks for evaluating system performance and verifying that performance targets have been achieved. Uses may include comparison of performance with the design intent; comparison with other PV systems in buildings; economic analysis of PV systems in buildings; and the establishment of long-term performance records that enable maintenance staff to monitor trends in energy performance.

  19. Measurement-Based Evaluation of Installed Filtration System Performance in Single-Family Homes

    SciTech Connect (OSTI)

    Chan, Wanyu Rengie; Singer, Brett C.

    2014-04-03T23:59:59.000Z

    This guide discusses important study design issues to consider when conducting an on-site evaluation of filtration system performance. The two most important dichotomies to consider in developing a study protocol are (1) whether systems are being evaluated in occupied or unoccupied homes and (2) whether different systems are being compared in the same homes or if the comparison is between systems installed in different homes. This document provides perspective and recommendations about a suite of implementation issues including the choice of particle measurement devices, selection of sampling locations, ways to control and/or monitor factors and processes that can impact particle concentrations, and data analysis approaches.

  20. An evaluation of pressure and flow measurement in the Molten Salt Test Loop (MSTL) system.

    SciTech Connect (OSTI)

    Gill, David Dennis; Kolb, William J.; Briggs, Ronald J.

    2013-07-01T23:59:59.000Z

    The National Solar Thermal Test Facility at Sandia National Laboratories has a unique test capability called the Molten Salt Test Loop (MSTL) system. MSTL allows customers and researchers to test components in flowing, molten nitrate salt at plant-like conditions for pressure, flow, and temperature. An important need in thermal storage systems that utilize molten salts is for accurate flow and pressure measurement at temperatures above 535%C2%B0C. Currently available flow and pressure instrumentation for molten salt is limited to 535%C2%B0C and even at this temperature the pressure measurement appears to have significant variability. It is the design practice in current Concentrating Solar Power plants to measure flow and pressure on the cold side of the process or in dead-legs where the salt can cool, but this practice won't be possible for high temperature salt systems. For this effort, a set of tests was conducted to evaluate the use of the pressure sensors for flow measurement across a device of known flow coefficient Cv. To perform this task, the pressure sensors performance was evaluated and was found to be lacking. The pressure indicators are severely affected by ambient conditions and were indicating pressure changes of nearly 200psi when there was no flow or pressure in the system. Several iterations of performance improvement were undertaken and the pressure changes were reduced to less than 15psi. The results of these pressure improvements were then tested for use as flow measurement. It was found that even with improved pressure sensors, this is not a reliable method of flow measurement. The need for improved flow and pressure measurement at high temperatures remains and will need to be solved before it will be possible to move to high temperature thermal storage systems with molten salts.

  1. Study of the utilization and benefits of phasor measurement units for large scale power system state estimation 

    E-Print Network [OSTI]

    Yoon, Yeo Jun

    2006-04-12T23:59:59.000Z

    .3 Simulation Example of IEEE14 Bus System ...???????..??..47 5.4 Simulation Example of IEEE118 Bus System ...??????.....?.....53... with Rectangular Form ...???????????...?15 6 Two Bus System with Measurements ?...????????????????.17 7 IEEE14 Bus System with PMU Locations ...???????????????.19 8 IEEE30 Bus System with PMU Locations ...?????????????.??19 9 IEEE57 Bus System...

  2. Clinical Trials of a Urethral Dose Measurement System in Brachytherapy Using Scintillation Detectors

    SciTech Connect (OSTI)

    Suchowerska, Natalka, E-mail: natalka@email.cs.nsw.gov.a [Radiation Oncology, Royal Prince Alfred Hospital, New South Wales (Australia); School of Physics, University of Sydney, New South Wales (Australia); Jackson, Michael [Radiation Oncology, Prince of Wales Hospital, New South Wales (Australia); Department of Medicine, University of Sydney, New South Wales (Australia); Lambert, Jamil; Yin, Yong Bai [School of Physics, University of Sydney, New South Wales (Australia); Hruby, George [Radiation Oncology, Royal Prince Alfred Hospital, New South Wales (Australia); Department of Medicine, University of Sydney, New South Wales (Australia); McKenzie, David R. [School of Physics, University of Sydney, New South Wales (Australia)

    2011-02-01T23:59:59.000Z

    Purpose: To report on the clinical feasibility of a novel scintillation detector system with fiberoptic readout that measures the urethral dose during high-dose-rate brachytherapy treatment of the prostate. Methods and Materials: The clinical trial enrolled 24 patients receiving high-dose-rate brachytherapy treatment to the prostate. After the first 14 patients, three improvements were made to the dosimeter system design to improve clinical reliability: a dosimeter self-checking facility; a radiopaque marker to determine the position of the dosimeter, and a more robust optical extension fiber. Results: Improvements to the system design allowed for accurate dose measurements to be made in vivo. A maximum measured dose departure of 9% from the calculated dose was observed after dosimeter design improvements. Conclusions: Departures of the measured from the calculated dose, after improvements to the dosimetry system, arise primarily from small changes in patient anatomy. Therefore, we recommend that patient response be correlated with the measured in vivo dose rather than with the calculated dose.

  3. A cryogen-free dilution refrigerator based Josephson qubit measurement system

    E-Print Network [OSTI]

    Tian, Ye; Yu, H. F.; Deng, H.; Xue, G. M.; Liu, D. T.; Ren, Y. F.; Chen, G. H.; Zheng, D. N.; Jing, X. N.; Lu, Li; Zhao, S. P.; Han, Siyuan

    2012-01-12T23:59:59.000Z

    dilution refrigerator measurement system. (1) Aluminum-alloy frame; (2) PTR cold- head; (3) and (4) pumping line; (5) bellows assembly; (6) turbo pump; (7) rotary valve; (8) compressor; (9) forepump; (10) LN2 coldtrap; (11) PTR compressor; (12) and (13...-free dilution refrigerator based Josephson qubit measurement system Ye Tian,1 H. F. Yu,1 H. Deng,1 G. M. Xue,1 D. T. Liu,1 Y. F. Ren,1 G. H. Chen,1 D. N. Zheng,1 X. N. Jing,1 Li Lu,1 S. P. Zhao,1 and Siyuan Han2 1Beijing National Laboratory for Condensed Matter...

  4. Complex-optical-field lidar system for range and vector velocity measurement

    E-Print Network [OSTI]

    Gao, Shuang; Sullivan, Maurice O.; Hui, Rongqing

    2012-11-01T23:59:59.000Z

    Complex-optical-field lidar system for range and vector velocity measurement Shuang Gao,1,2 Maurice O’Sullivan,3 and Rongqing Hui2,* 1Department of Electronic Engineering and Information Science, University of Science and Technology of China... lidar system based on the measurement of complex optical field is demonstrated for the first time. An electro-optic in- phase/quadrature (I/Q) modulator is used in the lidar transmitter to realize carrier-suppressed complex optical field modulation...

  5. Phase loop bandwidth measurements on the advanced photon source 352 MHz rf systems

    SciTech Connect (OSTI)

    Horan, D.; Nassiri, A.; Schwartz, C.

    1997-08-01T23:59:59.000Z

    Phase loop bandwidth tests were performed on the Advanced Photon Source storage ring 352-MHz rf systems. These measurements were made using the HP3563A Control Systems Analyzer, with the rf systems running at 30 kilowatts into each of the storage ring cavities, without stored beam. An electronic phase shifter was used to inject approximately 14 degrees of stimulated phase shift into the low-level rf system, which produced measureable response voltage in the feedback loops without upsetting normal rf system operation. With the PID (proportional-integral-differential) amplifier settings at the values used during accelerator operation, the measurement data revealed that the 3-dB response for the cavity sum and klystron power-phase loops is approximately 7 kHz and 45 kHz, respectively, with the cavities the primary bandwidth-limiting factor in the cavity-sum loop. Data were taken at various PID settings until the loops became unstable. Crosstalk between the two phase loops was measured.

  6. An alternate model for protective measurements of two-level systems

    E-Print Network [OSTI]

    Anirban Das; N. D. Hari Dass

    2004-10-13T23:59:59.000Z

    In this article we propose an alternate model for the so called {\\it protective measurements}, more appropriately {\\it adiabatic measurements} of a spin 1/2 system where the {\\it apparatus} is also a quantum system with a {\\em finite dimensional Hilbert space}. This circumvents several technical as well as conceptual issues that arise when dealing with an infinite dimensional Hilbert space as in the analysis of conventional Stern-Gerlach experiment. Here also it is demonstrated that the response of the detector is continuous and it {\\it directly} measures {\\em expectation values without altering the state of the system}(when the unknown original state is a {\\it nondegenerate eigenstate of the system Hamiltonian}, in the limit of {\\em ideal} adiabatic conditions. We have also computed the corrections arising out of the inevitable departures from ideal adiabaticity i.e the time of measurement being large but finite. To overcome the {\\em conceptual} difficulties with a {\\it quantum apparatus}, we have simulated a {\\it classical apparatus} as a {\\em large} assembly of spin-1/2 systems. We end this article with a conclusion and a discussion of some future issues.

  7. Thermo-dynamical measurements for ATLAS Inner Detector (evaporative cooling system)

    E-Print Network [OSTI]

    Bitadze, Alexander; Buttar, Craig

    During the construction, installation and initial operation of the Evaporative Cooling System for the ATLAS Inner Detector SCT Barrel Sub-detector, some performance characteristics were observed to be inconsistent with the original design specifications, therefore the assumptions made in the ATLAS Inner Detector TDR were revisited. The main concern arose because of unexpected pressure drops in the piping system from the end of the detector structure to the distribution racks. The author of this theses made a series of measurements of these pressure drops and the thermal behavior of SCT-Barrel cooling Stave. Tests were performed on the installed detector in the pit, and using a specially assembled full scale replica in the SR1 laboratory at CERN. This test setup has been used to perform extensive tests of the cooling performance of the system including measurements of pressure drops in different parts of system, studies of the thermal profile along the stave pipe for different running conditions / parameters a...

  8. Poincaré-based control of delayed measured systems: Limitations and Improved Control

    E-Print Network [OSTI]

    Jens Christian Claussen

    2007-12-27T23:59:59.000Z

    When a chaotic system is to be stabilized to a unstable orbit, delayed measurement of the system limits the applicability of chaos control techniqes. These limitations are analyzed and control schemes as linear predictive logging control (LPLC) and memory difference control (MDC) are introduced which can overcome those limitations for chaos control schemes that act in the Poincar\\'{e} section as Ott-Grebogi-Yorke (OGY) control and Bielawski-Derozier_Glorieux control (difference control).

  9. An experimental measurement of the thermal conductivity and diffusivity of a porous solid-liquid system 

    E-Print Network [OSTI]

    Dunn, James Elliott

    1959-01-01T23:59:59.000Z

    AN EXPERIMENTAL MEASUREMENT QF THE THERMAL CONDUCTIVITY AND DIFFUSIVITY OF A POROUS SOLID LIQUID SYSTEM By James Elliott Dunn A Thesis Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial... fulfillment of the reQuirements for the degree of MASTER OF SCIENCE August 1959 Major Sub)ect: Mechanical Engineering AN EXPERIMENTAL MEASURFJ1ENT OF THE THERMAL CONDUCTIVITY AND DIFFUSIVITY OF A POROUS SOLID LIQUID SYSTEM A Thesis James Elliott Dunn...

  10. Collaborative Exploration with a Micro Aerial Vehicle: A Novel Interaction Method for Controlling a MAV with a Hand-Held Device

    E-Print Network [OSTI]

    Pitman, David

    2012-01-01T23:59:59.000Z

    In order to collaboratively explore an environment with a Micro Aerial Vehicle (MAV), an operator needs a mobile interface, which can support the operator’s divided attention. To this end, we developed the Micro Aerial ...

  11. Preprint version 2011 IEEE International Conference on Robotics and Automation, Shanghai, CN Haptic Teleoperation of Multiple Unmanned Aerial Vehicles

    E-Print Network [OSTI]

    Preprint version 2011 IEEE International Conference on Robotics and Automation, Shanghai, CN Haptic Teleoperation of Multiple Unmanned Aerial Vehicles over the Internet Dongjun Lee, Antonio Franchi, Paolo Robuffo control framework for multiple unmanned aerial vehicles (UAVs) over the Internet, consisting of the three

  12. Measurement Measurement

    E-Print Network [OSTI]

    Type Measurement Type Measurement Type Measurement Type Measurement Catch Composition - Pelagic codes M Male F Female I Indeterminate U Unknown (not inspected) #12;Type Measurement Type Measurement Type Measurement Type Measurement Photos Comment Length 1 Version 1.2 6/2011 HookNo. Species name

  13. Summary of Field Measurement on UF6 Cylinders Using Electro-Mechanically Cooled Systems

    SciTech Connect (OSTI)

    McGinnis, Brent R [ORNL; Smith, Steven E [ORNL; Solodov, Alexander A [ORNL; Whitaker, J Michael [ORNL; Morgan, James B [ORNL; MayerII, Richard L. [USEC, Inc.; Montgomery, J. Brent [U.S. Enrichment Corporation Paducah Gaseous Diffusion Plant

    2009-01-01T23:59:59.000Z

    Measurement of the enrichment of solid state UF6 stored within large metal cylinders is a task commonly performed by plant operators and inspectors. The measurement technologies typically used range from low-resolution, high-efficiency sodium iodide detectors to high-resolution, moderate-efficiency high-purity germanium (HPGe) detectors. The technology used and methods deployed are dependent upon the material being measured, environmental conditions, time constraints, and measurement-precision requirements. Operators and inspectors typically use specially designed, HPGe detectors that are cooled with liquid nitrogen in situations where high-resolution measurements are required. However, the requirement for periodically refilling the system with liquid nitrogen makes remote usage cumbersome and slow. The task of cooling the detector reduces the available time for the inspector to perform other safeguards activities while on site. If the inspector has to reduce the count time for each selected cylinder to ensure that all preselected cylinders are measured during the inspection, the resulting measurement uncertainties may be increased, making it more difficult to detect and verify potential discrepancies in the operator's declarations. However, recent advances in electromechanically cooled HPGe detectors may provide the inspector with an improved verification tool by eliminating the need for liquid nitrogen. This report provides a summary of test results for field measurements performed using electromechanically cooled HPGe detectors on depleted, natural, and low-enriched uranium cylinders. The results of the study provide valuable information to inspectors and operators regarding the capabilities and limitations of electromechanically cooled systems based on true field-measurement conditions.

  14. CIMSA 2005 IEEE International Conference on Computational Intelligence for Measurement Systems and Applications

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    practices identification and analysis based on soft computing techniques. Using this new methodology "best of this methodology to a problem in the petroleum industry is presented. Keywords ­ Soft Computing, Best PracticesCIMSA 2005 ­ IEEE International Conference on Computational Intelligence for Measurement Systems

  15. Towing tank PIV measurement system, data and uncertainty assessment for DTMB Model 5512

    E-Print Network [OSTI]

    Gui, Lichuan

    Basin (DTMB) model 5512. The mean velocities are compared with previous 5-hole pitot probe dataTowing tank PIV measurement system, data and uncertainty assessment for DTMB Model 5512 L. Gui, J stresses at the nominal-wake plane of a model-scale ship. The mean velocities are compared with previous 5

  16. A Novel Scanning Imaging DOAS System for Measurements of Air Quality

    E-Print Network [OSTI]

    A Novel Scanning Imaging DOAS System for Measurements of Air Quality R. Graves, R.J. Leigh and P Centre for Earth Observation, Surrey SatelliteTechnology Ltd and The EnvironmentAgency. CityScan uses and radiometric calibrations. · It has been demonstrated that the CityScan spectrometer can be used for high

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

    E-Print Network [OSTI]

    Danon, Yaron

    the currently available cross section data. The system is designed to work in the energy range of 0.2-20 Me and Shielding Division Carlsbad New Mexico, USA. April 3-6, 2006 527 #12;National Instruments Measurement Studio Protection and Shielding Division Carlsbad New Mexico, USA. April 3-6, 2006 528 #12;shaped discrimination

  18. An atom trap trace analysis (ATTA) system for measuring ultra-low contamination by krypton in

    E-Print Network [OSTI]

    Zelevinsky, Tanya

    An atom trap trace analysis (ATTA) system for measuring ultra-low contamination by krypton in xenon ultra-low contamination by krypton in xenon dark matter detectors Tae Hyun Yoon The XENON dark matter analysis (ATTA) device to detect the ultra-low kryp- ton concentration in the xenon target. This project

  19. Optical Arbitrary Waveform Generation and Measurement Transmission Systems and Its Application to Flexible Bandwidth

    E-Print Network [OSTI]

    Kolner, Brian H.

    Optical Arbitrary Waveform Generation and Measurement Transmission Systems and Its Application to Flexible Bandwidth Networking By David Jason Geisler B.S. (Tufts University) 2004 M.S. (University . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.4.1 The Case for Flexible Bandwidth Networking . . . . . . . . 11 1.4.2 Impairment Awareness

  20. Peeping at chaos: Nondestructive monitoring of chaotic systems by measuring long-time escape rates

    E-Print Network [OSTI]

    L. A. Bunimovich; C. P. Dettmann

    2007-09-17T23:59:59.000Z

    One or more small holes provide non-destructive windows to observe corresponding closed systems, for example by measuring long time escape rates of particles as a function of hole sizes and positions. To leading order the escape rate of chaotic systems is proportional to the hole size and independent of position. Here we give exact formulas for the subsequent terms, as sums of correlation functions; these depend on hole size and position, hence yield information on the closed system dynamics. Conversely, the theory can be readily applied to experimental design, for example to control escape rates.

  1. Computation, measurement and mitigation of neutral-to-earth potentials on electrical distribution systems

    SciTech Connect (OSTI)

    Dick, W.K.; Winter, D.F.

    1987-04-01T23:59:59.000Z

    This paper presents computer generated profiles of primary-neutral-to-earth potentials of electrical distribution systems which incorporate a variety of techniques used to mitigate neutral-to-earth potential (''stray voltage'') at dairy farm facilities. Techniques available to the power supplier and power user include an Electronic Grounding System which provides voltage reduction factors of as much as 200 to 1. A new method of measuring these voltages using a computer data acquisition system which monitors every cycle of the power-frequency voltages on eight totally independent channels for extended periods is described.

  2. Protocol for Uniformly Measuring and Expressing the Performance of Energy Storage Systems

    SciTech Connect (OSTI)

    Conover, David R.; Crawford, Aladsair J.; Viswanathan, Vilayanur V.; Ferreira, Summer; Schoenwald, David

    2014-06-01T23:59:59.000Z

    The Protocol for Uniformly Measuring and Expressing the Performance of Energy Storage Systems (PNNL-22010) was first issued in November 2012 as a first step toward providing a foundational basis for developing an initial standard for the uniform measurement and expression of energy storage system (ESS) performance. Its subsequent use in the field and review by the protocol working group and most importantly the users’ subgroup and the thermal subgroup has led to the fundamental modifications reflected in this update of the 2012 Protocol. As an update of the 2012 Protocol, this document (the June 2014 Protocol) is intended to supersede its predecessor and be used as the basis for measuring and expressing ESS performance. The foreword provides general and specific details about what additions, revisions, and enhancements have been made to the 2012 Protocol and the rationale for them in arriving at the June 2014 Protocol.

  3. Measure Guideline: Implementing a Plenum Truss for a Compact Air Distribution System

    SciTech Connect (OSTI)

    Burdick, A.

    2013-10-01T23:59:59.000Z

    This Measure Guideline presents the steps to implement a compact duct system inside an attic bulkhead (plenum truss) of a one-story, slab-on-grade (SOG) home. In a compact duct design, ductwork runs are reduced in length to yield a smaller and more compact duct system. Less energy will be lost through ductwork if the ducts are contained within the thermal enclosure of the house. These measures are intended for the production builder working to meet the 2012 International Energy Conservation Code (IECC) requirements and keep the ductwork within the thermal enclosure of the house. This measure of bringing the heating, ventilation and air conditioning (HVAC) equipment and ductwork within the thermal enclosure of the house is appropriate for the builder wishing to avoid cathedralizing the insulation in the attic space (i.e., locating it at the underside of the roof deck rather than along the attic floor) or adding dropped soffits.

  4. First measurement of electron temperature from signal ratios in a double-pass Thomson scattering system

    SciTech Connect (OSTI)

    Tojo, H.; Itami, K.; Hatae, T. [Japan Atomic Energy Agency, 801-1 Mukoyama, Naka 311-0193 (Japan); Ejiri, A.; Yamaguchi, T.; Takase, Y. [Graduate School of Frontier Sciences, University of Tokyo, Kashiwa 277-8561 (Japan); Hiratsuka, J. [Graduate School of Science, University of Tokyo, Tokyo 113-0033 (Japan)

    2012-02-15T23:59:59.000Z

    This paper presents an experimental demonstration to determine electron temperature (T{sub e}) with unknown spectral sensitivity (transmissivity) in a Thomson scattering system. In this method, a double-pass scattering configuration is used and the scattered lights from each pass (with different scattering angles) are measured separately. T{sub e} can be determined from the ratio of the signal intensities without knowing a real chromatic dependence in the sensitivity. Note that the wavelength range for each spectral channel must be known. This method was applied to the TST-2 Thomson scattering system. As a result, T{sub e} measured from the ratio (T{sub e,r}) and T{sub e} measured from a standard method (T{sub e,s}) showed a good agreement with <|T{sub e,r}-T{sub e,s}|/T{sub e,s}>= 7.3%.

  5. Image Recognition System for Automated Lighting Retrofit Assessment 

    E-Print Network [OSTI]

    Venable, K.; Bhatia, D.; Coverick, R.; Gutierrez, C.; Knight, J.; McGarry, D.; McGee, K.; Smith, Z.; Terrill, T. J.; Vanderford, B.; Weiser, R.; Wightman, K.; Rasmussen, B. P.

    2013-01-01T23:59:59.000Z

    a prototype system that can enumerate and classify the lighting in a building using an optical camera, accelerometer, spectrometer, and distance sensor. As the aerial vehicle navigates throughout a room, the prototype system captures images...

  6. 1Centre for Autonomous Marine Operations and Systems -AMOSwww.ntnu.edu/amos 2Centre for Autonomous Marine Operations and Systems -AMOSwww.ntnu.edu/amos

    E-Print Network [OSTI]

    Nørvåg, Kjetil

    of Expertise Applications: · Unmanned aerial systems (UAS) · Autonomous underwater vehicles (AUV) · Spacecraft structures · Underwater robotics · Mapping and monitoring of the ocean space · Intelligent and autonomous systems · High speed vehicles · Simulator technology for marine systems · Hardware-in-the-loop (HIL

  7. SYSTEM OF POWER SUPPLY RIPPLES MEASUREMENT FOR VEPP-2000 D. Berkaev, O. Belikov, V. Kozak, P. Shatunov, A. Medvedko

    E-Print Network [OSTI]

    Kozak, Victor R.

    SYSTEM OF POWER SUPPLY RIPPLES MEASUREMENT FOR VEPP-2000 COLLIDER D. Berkaev, O. Belikov, V. Kozak parameters maintaining. The standard power sources automation system does not allow discovering for the aims of the pulsation discovering. In oscillographic regime the system e gets measurements of all power

  8. Rapid development of a measurement and control system for the Advanced Free-Electron Laser

    SciTech Connect (OSTI)

    Wilson, W.L. Jr.; May, M.W.; Kozubal, A.J.

    1991-01-01T23:59:59.000Z

    The Experimental Physics and Industrial Control System (EPICS) is being used to develop a measurement and control system for the Advanced Free-Electron laser (AFEL) at the Los Alamos National Laboratory. EPICS is an integrated system of applications development tools and a distributed run time environment that supports an input-output database, a graphical operator interface, sequential control through state'' definition, data archiving, data analysis, and fault management. It is very advantageous in terms of both time and system integrity to be able to perform much of the control system development before the actual hardware for the AFEL is in place. Using the EPICS applications tools, we are developing prototype measurements and controls that can be directly transferred to the AFEL during installation and commissioning. This is possible due primarily to three aspects of EPICS. First we can easily model physical systems with the state notation language. Second, we can simulate input and output channels with soft'' database channels, which are created using the database configuration tool. Third, we can easily build and modify operator interface screens with the display editor. 8 refs., 3 figs.

  9. Using historical aerial photography and softcopy photogrammetry for waste unit mapping in L Lake.

    SciTech Connect (OSTI)

    Christel, L.M.

    1997-10-01T23:59:59.000Z

    L Lake was developed as a cooling water reservoir for the L Reactor at the Savannah River Site. The construction of the lake, which began in the fall of 1984, altered the structure and function of Steel Creek. Completed in the fall of 1985, L Lake has a capacity of 31 million cubic meters and a normal pool of 58 meters. When L Reactor operations ceased in 1988, the water level in the lake still had to be maintained. Site managers are currently trying to determine the feasibility of draining or drawing down the lake in order to save tax dollars. In order to understand the full repercussions of such an undertaking, it was necessary to compile a comprehensive inventory of what the lake bottom looked like prior to filling. Aerial photographs, acquired nine days before the filling of the lake began, were scanned and used for softcopy photogrammetry processing. A one-meter digital elevation model was generated and a digital orthophoto mosaic was created as the base map for the project. Seven categories of features, including the large waste units used to contain the contaminated soil removed from the dam site, were screen digitized and used to generate accurate maps. Other map features include vegetation waste piles, where contaminated vegetation from the flood plain was contained, and ash piles, which are sites where vegetation debris was burned and then covered with clean soil. For all seven categories, the area of disturbance totaled just over 63 hectares. When the screen digitizing was completed, the elevation at the centroid of each disturbance was determined. When the information is used in the Savannah River Site Geographical Information System, it can be used to visualize the various L Lake draw-down scenarios suggested by site managers and hopefully, to support evaluations of the cost effectiveness for each proposed activity.

  10. A liquid helium target system for a measurement of parity violation in neutron spin rotation

    E-Print Network [OSTI]

    C. D. Bass; T. D. Bass; B. R. Heckel; C. R. Huffer; D. Luo; D. M. Markoff; A. M. Micherdzinska; W. M. Snow; H. E. Swanson; S. C. Walbridge

    2009-09-17T23:59:59.000Z

    A liquid helium target system was designed and built to perform a precision measurement of the parity-violating neutron spin rotation in helium due to the nucleon-nucleon weak interaction. The measurement employed a beam of low energy neutrons that passed through a crossed neutron polarizer--analyzer pair with the liquid helium target system located between them. Changes between the target states generated differences in the beam transmission through the polarizer--analyzer pair. The amount of parity-violating spin rotation was determined from the measured beam transmission asymmetries. The expected parity-violating spin rotation of order $10^{-6}$ rad placed severe constraints on the target design. In particular, isolation of the parity-odd component of the spin rotation from a much larger background rotation caused by magnetic fields required that a nonmagnetic cryostat and target system be supported inside the magnetic shielding, while allowing nonmagnetic motion of liquid helium between separated target chambers. This paper provides a detailed description of the design, function, and performance of the liquid helium target system.

  11. A fast continuous magnetic field measurement system based on digital signal processors

    SciTech Connect (OSTI)

    Velev, G.V.; Carcagno, R.; DiMarco, J.; Kotelnikov, S.; Lamm, M.; Makulski, A.; /Fermilab; Maroussov, V.; /Purdue U.; Nehring, R.; Nogiec, J.; Orris, D.; /Fermilab; Poukhov,; Prakoshyn, F.; /Dubna, JINR; Schlabach, P.; Tompkins, J.C.; /Fermilab

    2005-09-01T23:59:59.000Z

    In order to study dynamic effects in accelerator magnets, such as the decay of the magnetic field during the dwell at injection and the rapid so-called ''snapback'' during the first few seconds of the resumption of the energy ramp, a fast continuous harmonics measurement system was required. A new magnetic field measurement system, based on the use of digital signal processors (DSP) and Analog to Digital (A/D) converters, was developed and prototyped at Fermilab. This system uses Pentek 6102 16 bit A/D converters and the Pentek 4288 DSP board with the SHARC ADSP-2106 family digital signal processor. It was designed to acquire multiple channels of data with a wide dynamic range of input signals, which are typically generated by a rotating coil probe. Data acquisition is performed under a RTOS, whereas processing and visualization are performed under a host computer. Firmware code was developed for the DSP to perform fast continuous readout of the A/D FIFO memory and integration over specified intervals, synchronized to the probe's rotation in the magnetic field. C, C++ and Java code was written to control the data acquisition devices and to process a continuous stream of data. The paper summarizes the characteristics of the system and presents the results of initial tests and measurements.

  12. Recent Fast Neutron Imaging Measurements with the Fieldable Nuclear Materials Identification System

    SciTech Connect (OSTI)

    Wellington, Tracey [ORNL; Palles, Blake A [ORNL; Mullens, James Allen [ORNL; Mihalczo, John T [ORNL; Archer, Daniel E [ORNL; Thompson, Thad [ORNL; Britton Jr, Charles L [ORNL; Ezell, N Dianne Bull [ORNL; Ericson, Milton Nance [ORNL; Farquhar, Ethan [ORNL; Lind, Randall F [ORNL; Carter, Jake [ORNL

    2015-01-01T23:59:59.000Z

    This paper describes some recent fast neutron imaging measurements of the fieldable nuclear materials identification system (FNMIS) under development by the National Nuclear Security Administration (NNSA-NA-22) for possible future use in arms control and nonproliferation applications. The general configuration of FNMIS has been previously described, and a description of the application-specific integrated circuit (ASIC) electronics designed for FNMIS has been reported. This paper presents initial imaging measurements performed at ORNL with a Thermo Fisher API 120 DT generator and the fast-neutron imaging module of FNMIS.

  13. Optimal Complete Terrain Coverage using an Unmanned Aerial Vehicle Anqi Xu, Chatavut Viriyasuthee, and Ioannis Rekleitis

    E-Print Network [OSTI]

    Rekleitis, Ioannis

    in a bounded environment, while: · avoiding a set of obstacle regions with arbitrary shape · preventing from of coverage using an aerial vehicle has many applications, including: environmental inspection, search] for the general class of non-holonomic robots. We compute a set of waypoints outlining the desired cover- age path

  14. Wind-Energy based Path Planning For Electric Unmanned Aerial Vehicles Using Markov Decision Processes

    E-Print Network [OSTI]

    Smith, Ryan N.

    Wind-Energy based Path Planning For Electric Unmanned Aerial Vehicles Using Markov Decision wind-energy is one possible way to ex- tend flight duration for Unmanned Arial Vehicles. Wind-energy sources of wind energy available to exploit for this problem [5]: 1) Vertical air motion, such as thermal

  15. Large-Scale Urban Modeling by Combining Ground Level Panoramic and Aerial Imagery

    E-Print Network [OSTI]

    Shahabi, Cyrus

    building or part of a build- ing. Due to error propagation, they are difficult to scale up to model aerial image, we can identify the footprints(up to a common scale) of the buildings, in- cluding of multiple tall buildings. Existing methods for large-scale modeling mostly de- pend on remote sensing

  16. Identification of "lost" structures through satellite imagery and aerial photographs at Fort Garland, CO

    E-Print Network [OSTI]

    Gilbes, Fernando

    .joyce@upr.edu ABSTRACT: Thermography studies using airborne remote sensors have proven useful in the search for buried the appropriateness of thermography studies using free LandSat 7 ETM+ images, and digital manipulation of aerial of variations in temperature to determine the presence of buried foundations or features. Thermography studies

  17. ReseaRch at the University of Maryland Unmanned Aerial Vehicle Technology

    E-Print Network [OSTI]

    Hill, Wendell T.

    -wing vehicles that can monitor atmospheric data without using fossil fuels. J. Sean Humbert tests autonomous varieties of autonomous aerial vehicles, and new ways of utilizing them, offer the potential for making for autonomous bio-inspired micro-vehicles capable of penetrating caves and tunnels, and of reducing the human

  18. Complete Residential Urban Area Reconstruction from Dense Aerial LiDAR Point Clouds

    E-Print Network [OSTI]

    Shahabi, Cyrus

    Complete Residential Urban Area Reconstruction from Dense Aerial LiDAR Point Clouds Qian-Yi Zhou area modeling and residential area modeling is that the latter usually con- tains rich vegetation. Thus representing the 3D urban reality of residential areas. Keywords: urban modeling, LiDAR, residential area

  19. aerial color infrared: Topics by E-print Network

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

    Summary: Solar infrared colors provide powerful constraints on the stellar effective temperature scale, but to this purpose they must be measured with both accuracy and precision....

  20. First results of electron temperature measurements by the use of multi-pass Thomson scattering system in GAMMA 10

    SciTech Connect (OSTI)

    Yoshikawa, M., E-mail: yosikawa@prc.tsukuba.ac.jp; Nagasu, K.; Shimamura, Y.; Shima, Y.; Kohagura, J.; Sakamoto, M.; Nakashima, Y.; Imai, T.; Ichimura, M. [Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577 (Japan); Yasuhara, R.; Yamada, I.; Funaba, H.; Kawahata, K. [National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292 (Japan); Minami, T. [Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan)

    2014-11-15T23:59:59.000Z

    A multi-pass Thomson scattering (TS) has the advantage of enhancing scattered signals. We constructed a multi-pass TS system for a polarisation-based system and an image relaying system modelled on the GAMMA 10 TS system. We undertook Raman scattering experiments both for the multi-pass setting and for checking the optical components. Moreover, we applied the system to the electron temperature measurements in the GAMMA 10 plasma for the first time. The integrated scattering signal was magnified by approximately three times by using the multi-pass TS system with four passes. The electron temperature measurement accuracy is improved by using this multi-pass system.

  1. Measurements of SCRF cavity dynamic heat load in horizontal test system

    SciTech Connect (OSTI)

    DeGraff, B.D.; Bossert, R.J.; Pei, L.; Soyars, W.M.; /Fermilab

    2009-11-01T23:59:59.000Z

    The Horizontal Test System (HTS) at Fermilab is currently testing fully assembled, dressed superconducting radio frequency (SCRF) cavities. These cavities are cooled in a bath of superfluid helium at 1.8K. Dissipated RF power from the cavities is a dynamic heat load on the cryogenic system. The magnitude of heat flux from these cavities into the helium is also an important variable for understanding cavity performance. Methods and hardware used to measure this dynamic heat load are presented. Results are presented from several cavity tests and testing accuracy is discussed.

  2. Measurements of SCRF cavity dynamic heat load in horizontal test system

    E-Print Network [OSTI]

    DeGraff, B D; Pei, L; Soyars, W M; 10.1063/1.3422409

    2012-01-01T23:59:59.000Z

    The Horizontal Test System (HTS) at Fermilab is currently testing fully assembled, dressed superconducting radio frequency (SCRF) cavities. These cavities are cooled in a bath of superfluid helium at 1.8K. Dissipated RF power from the cavities is a dynamic heat load on the cryogenic system. The magnitude of heat flux from these cavities into the helium is also an important variable for understanding cavity performance. Methods and hardware used to measure this dynamic heat load are presented. Results are presented from several cavity tests and testing accuracy is discussed.

  3. Measuring emission coordinates in a pulsar-based relativistic positioning system

    E-Print Network [OSTI]

    Darius Bunandar; Scott A. Caveny; Richard A. Matzner

    2011-12-08T23:59:59.000Z

    A relativistic deep space positioning system has been proposed using four or more pulsars with stable repetition rates. (Each pulsar emits pulses at a fixed repetition period in its rest frame.) The positioning system uses the fact that an event in spacetime can be fully described by emission coordinates: the proper emission time of each pulse measured at the event. The proper emission time of each pulse from four different pulsars---interpolated as necessary---provides the four spacetime coordinates of the reception event in the emission coordinate system. If more than four pulsars are available, the redundancy can improve the accuracy of the determination and/or resolve degeneracies resulting from special geometrical arrangements of the sources and the event. We introduce a robust numerical approach to measure the emission coordinates of an event in any arbitrary spacetime geometry. Our approach uses a continuous solution of the eikonal equation describing the backward null cone from the event. The pulsar proper time at the instant the null cone intersects the pulsar world line is one of the four required coordinates. The process is complete (modulo degeneracies) when four pulsar world lines have been crossed by the light cone. The numerical method is applied in two different examples: measuring emission coordinates of an event in Minkowski spacetime using pulses from four pulsars stationary in the spacetime; and measuring emission coordinates of an event in Schwarzschild spacetime using pulses from four pulsars freely falling toward a static black hole. These numerical simulations are merely exploratory, but with improved resolution and computational resources the method can be applied to more pertinent problems. For instance one could measure the emission coordinates, and therefore the trajectory, of the Earth.

  4. Measurement of isotope separation factors in the palladium-hydrogen system using a thermistor technique

    SciTech Connect (OSTI)

    Ortiz, T.M.

    1998-05-01T23:59:59.000Z

    The range of available data on separation factors in the palladium-hydrogen/deuterium system has been extended. A matched pair of glass-coated bead thermistors was used to measure gas phase compositions. The compositions of the input gas--assumed also to be the solid phase composition--were measured independently be mass spectrometry as being within 0.5 mole% of the values used to calibrate the thermistors. This assumption is based on the fact that > 99% of the input gas is absorbed into the solid. Separation factors were measured for 175 K {le} T {le} 389 K and for 0.195 {le} x{sub H} {le} 0.785.

  5. Systems and methods for measuring a parameter of a landfill including a barrier cap and wireless sensor systems and methods

    DOE Patents [OSTI]

    Kunerth, Dennis C.; Svoboda, John M.; Johnson, James T.

    2007-03-06T23:59:59.000Z

    A method of measuring a parameter of a landfill including a cap, without passing wires through the cap, includes burying a sensor apparatus in the landfill prior to closing the landfill with the cap; providing a reader capable of communicating with the sensor apparatus via radio frequency (RF); placing an antenna above the barrier, spaced apart from the sensor apparatus; coupling the antenna to the reader either before or after placing the antenna above the barrier; providing power to the sensor apparatus, via the antenna, by generating a field using the reader; accumulating and storing power in the sensor apparatus; sensing a parameter of the landfill using the sensor apparatus while using power; and transmitting the sensed parameter to the reader via a wireless response signal. A system for measuring a parameter of a landfill is also provided.

  6. NREL Solar Radiation Research Laboratory (SRRL): Baseline Measurement System (BMS); Golden, Colorado (Data)

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

    Stoffel, T.; Andreas, A.

    The SRRL was established at the Solar Energy Research Institute (now NREL) in 1981 to provide continuous measurements of the solar resources, outdoor calibrations of pyranometers and pyrheliometers, and to characterize commercially available instrumentation. The SRRL is an outdoor laboratory located on South Table Mountain, a mesa providing excellent solar access throughout the year, overlooking Denver. Beginning with the basic measurements of global horizontal irradiance, direct normal irradiance and diffuse horizontal irradiance at 5-minute intervals, the SRRL Baseline Measurement System now produces more than 130 data elements at 1-min intervals that are available from the Measurement & Instrumentation Data Center Web site. Data sources include global horizontal, direct normal, diffuse horizontal (from shadowband and tracking disk), global on tilted surfaces, reflected solar irradiance, ultraviolet, infrared (upwelling and downwelling), photometric and spectral radiometers, sky imagery, and surface meteorological conditions (temperature, relative humidity, barometric pressure, precipitation, snow cover, wind speed and direction at multiple levels). Data quality control and assessment include daily instrument maintenance (M-F) with automated data quality control based on real-time examinations of redundant instrumentation and internal consistency checks using NREL's SERI-QC methodology. Operators are notified of equipment problems by automatic e-mail messages generated by the data acquisition and processing system. Radiometers are recalibrated at least annually with reference instruments traceable to the World Radiometric Reference (WRR).

  7. A measurement technique to determine the calibration accuracy of an electromagnetic tracking system to radiation isocenter

    SciTech Connect (OSTI)

    Litzenberg, Dale W.; Gallagher, Ian; Masi, Kathryn J.; Lee, Choonik; Prisciandaro, Joann I.; Hamstra, Daniel A.; Ritter, Timothy; Lam, Kwok L. [Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109-5010 (United States)] [Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109-5010 (United States)

    2013-08-15T23:59:59.000Z

    Purpose: To present and characterize a measurement technique to quantify the calibration accuracy of an electromagnetic tracking system to radiation isocenter.Methods: This technique was developed as a quality assurance method for electromagnetic tracking systems used in a multi-institutional clinical hypofractionated prostate study. In this technique, the electromagnetic tracking system is calibrated to isocenter with the manufacturers recommended technique, using laser-based alignment. A test patient is created with a transponder at isocenter whose position is measured electromagnetically. Four portal images of the transponder are taken with collimator rotations of 45° 135°, 225°, and 315°, at each of four gantry angles (0°, 90°, 180°, 270°) using a 3 × 6 cm{sup 2} radiation field. In each image, the center of the copper-wrapped iron core of the transponder is determined. All measurements are made relative to this transponder position to remove gantry and imager sag effects. For each of the 16 images, the 50% collimation edges are identified and used to find a ray representing the rotational axis of each collimation edge. The 16 collimator rotation rays from four gantry angles pass through and bound the radiation isocenter volume. The center of the bounded region, relative to the transponder, is calculated and then transformed to tracking system coordinates using the transponder position, allowing the tracking system's calibration offset from radiation isocenter to be found. All image analysis and calculations are automated with inhouse software for user-independent accuracy. Three different tracking systems at two different sites were evaluated for this study.Results: The magnitude of the calibration offset was always less than the manufacturer's stated accuracy of 0.2 cm using their standard clinical calibration procedure, and ranged from 0.014 to 0.175 cm. On three systems in clinical use, the magnitude of the offset was found to be 0.053 ± 0.036, 0.121 ± 0.023, and 0.093 ± 0.013 cm.Conclusions: The method presented here provides an independent technique to verify the calibration of an electromagnetic tracking system to radiation isocenter. The calibration accuracy of the system was better than the 0.2 cm accuracy stated by the manufacturer. However, it should not be assumed to be zero, especially for stereotactic radiation therapy treatments where planning target volume margins are very small.

  8. Final Technical Report for Chief Scientist for Atmospheric Radiation Measurement (ARM) Aerial Vehicle Program (AVP)

    SciTech Connect (OSTI)

    Greg M. McFarquhar

    2011-10-21T23:59:59.000Z

    The major responsibilities of the PI were identified as 1) the formulation of campaign plans, 2) the representation of AVP in various scientific communities inside and outside of ARM and the associated working groups, 3) the coordination and selection of the relative importance of the three different focus areas (routine observations, IOPs, instrument development program), 4) the examination and quality control of the data collected by AVP, and 5) providing field support for flight series. This report documents the accomplishments in each of these focus areas for the 3 years of funding for the grant that were provided.

  9. Measurement of electron temperature fluctuations using a tunable correlation electron cyclotron emission system on Alcator C-Mod

    SciTech Connect (OSTI)

    Howard, N. T., E-mail: nthoward@psfc.mit.edu [Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, Tennessee 37831 (United States); Sung, C.; White, A. E. [MIT - Plasma Science and Fusion Center, Cambridge, Massachusetts 02139 (United States)

    2014-11-15T23:59:59.000Z

    A tunable correlation electron cyclotron (CECE) system was recently installed on the Alcator C-Mod tokamak to provide local, quantitative measurement of electron temperature fluctuations in the tokamak core. This system represents a significant upgrade from the original CECE system, expanding the measurement capabilities from 4 to 8 total channels, including 2 remotely tunable YIG filters (6–18 GHz; 200 MHz bandwidth). Additional upgrades were made to the optical system to provide enhanced poloidal resolution and allow for measurement of turbulent fluctuations below k{sub ?}?{sub s} < 0.3. These expanded capabilities allow for single shot measurement of partial temperature fluctuation profiles in the region ? = 0.7 ? 0.9 (square root of normalized toroidal flux) in a wide variety of plasma conditions. These measurements are currently being used to provide stringent tests of the gyrokinetic model in ongoing model validation efforts. Details of the hardware upgrades, turbulent fluctuation measurements, and ongoing comparisons with simulations are presented.

  10. Performance of a HPGe System for Surface and Container Measurements - 13582

    SciTech Connect (OSTI)

    Twomey, Timothy R. [ORTEC - AMETEK, 801 South Illinois Avenue, Oak Ridge, TN 37830 (United States)] [ORTEC - AMETEK, 801 South Illinois Avenue, Oak Ridge, TN 37830 (United States); Keyser, Ronald M. [Software and Information Services, 562 Bacon Springs Ln, Clinton, TN 37716 (United States)] [Software and Information Services, 562 Bacon Springs Ln, Clinton, TN 37716 (United States)

    2013-07-01T23:59:59.000Z

    The decommissioning of a nuclear facility or post-accident cleanup is an immense engineering effort requiring an array of specialist tools and techniques. The decommissioning and cleanup activities generate large quantities of low activity waste. For economic disposal, it is desirable to certify the waste as suitable for free release. Every container must be assayed to a sufficient degree of accuracy and sensitivity so that it may be certified to be or not to be suitable for 'free release'. In a previous work, the performance of a highly-automated system for free release of large numbers of containers was presented in which the spectroscopy hardware comprised four ORTEC Interchangeable Detector Module (IDM) mechanically cooled HPGe spectrometers in conjunction with ORTEC ISOPlus waste assay software. It was shown that the system was capable of assaying large containers to free release levels in reasonable measurement times. Not all operations have enough waste to justify an automated system or rapid assay results may be required, perhaps in a remote location. To meet this need, a new mobile system has been developed for the assay of smaller objects (drums, boxes, and surfaces) In-Situ. The system incorporates the latest generation IDM-200 and ISOPlus software and a new variant of the ISOCart hardware. This paper will describe the system and performance. (authors)

  11. rf power system for thrust measurements of a helicon plasma source Alexander W. Kieckhafer and Mitchell L. R. Walker

    E-Print Network [OSTI]

    Walker, Mitchell

    rf power system for thrust measurements of a helicon plasma source Alexander W. Kieckhafer measurement stand and showed that rf power has no statistically significant contribution to the thrust stand now, a true thrust diagnostic that can measure thrust of a rf device does not exist. A helicon plasma

  12. aerial thermography studies: Topics by E-print Network

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

    OF A NEW NONDESTRUCTIVE INSPECTION SYSTEM FOR CASTING DEFECTS IN ENGINE CYLINDER BY PULSE HEATING INFRARED THERMOGRAPHY CiteSeer Summary: In this paper, a new inline nondestructive...

  13. aerial cable facility: Topics by E-print Network

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

    system demonstrate the ability of the designed platform-- Autonomous monitoring, mobile robot, crawler, sensors, underground cables, aging status. I. INTRODUCTION he Mamishev,...

  14. Effective detective quantum efficiency for two mammography systems: Measurement and comparison against established metrics

    SciTech Connect (OSTI)

    Salvagnini, Elena [UZ Gasthuisberg, Medical Imaging Research Center and Department of Radiology, Herestraat 49, B-3000 Leuven, Belgium and SCK-CEN, Boeretang 200, B-2400 Mol (Belgium)] [UZ Gasthuisberg, Medical Imaging Research Center and Department of Radiology, Herestraat 49, B-3000 Leuven, Belgium and SCK-CEN, Boeretang 200, B-2400 Mol (Belgium); Bosmans, Hilde; Marshall, Nicholas W. [UZ Gasthuisberg, Medical Imaging Research Center and Department of Radiology, Herestraat 49, B-3000 Leuven (Belgium)] [UZ Gasthuisberg, Medical Imaging Research Center and Department of Radiology, Herestraat 49, B-3000 Leuven (Belgium); Struelens, Lara [SCK-CEN, Boeretang 200, B-2400 Mol (Belgium)] [SCK-CEN, Boeretang 200, B-2400 Mol (Belgium)

    2013-10-15T23:59:59.000Z

    Purpose: The aim of this paper was to illustrate the value of the new metric effective detective quantum efficiency (eDQE) in relation to more established measures in the optimization process of two digital mammography systems. The following metrics were included for comparison against eDQE: detective quantum efficiency (DQE) of the detector, signal difference to noise ratio (SdNR), and detectability index (d?) calculated using a standard nonprewhitened observer with eye filter.Methods: The two systems investigated were the Siemens MAMMOMAT Inspiration and the Hologic Selenia Dimensions. The presampling modulation transfer function (MTF) required for the eDQE was measured using two geometries: a geometry containing scattered radiation and a low scatter geometry. The eDQE, SdNR, and d? were measured for poly(methyl methacrylate) (PMMA) thicknesses of 20, 40, 60, and 70 mm, with and without the antiscatter grid and for a selection of clinically relevant target/filter (T/F) combinations. Figures of merit (FOMs) were then formed from SdNR and d? using the mean glandular dose as the factor to express detriment. Detector DQE was measured at energies covering the range of typical clinically used spectra.Results: The MTF measured in the presence of scattered radiation showed a large drop at low spatial frequency compared to the low scatter method and led to a corresponding reduction in eDQE. The eDQE for the Siemens system at 1 mm{sup ?1} ranged between 0.15 and 0.27, depending on T/F and grid setting. For the Hologic system, eDQE at 1 mm{sup ?1} varied from 0.15 to 0.32, again depending on T/F and grid setting. The eDQE results for both systems showed that the grid increased the system efficiency for PMMA thicknesses of 40 mm and above but showed only small sensitivity to T/F setting. While results of the SdNR and d? based FOMs confirmed the eDQE grid position results, they were also more specific in terms of T/F selection. For the Siemens system at 20 mm PMMA, the FOMs indicated Mo/Mo (grid out) as optimal while W/Rh (grid in) was the optimal configuration at 40, 60, and 70 mm PMMA. For the Hologic, the FOMs pointed to W/Rh (grid in) at 20 and 40 mm of PMMA while W/Ag (grid in) gave the highest FOM at 60 and 70 mm PMMA. Finally, DQE at 1 mm{sup ?1} averaged for the four beam qualities studied was 0.44 ± 0.02 and 0.55 ± 0.03 for the Siemens and Hologic detectors, respectively, indicating only a small influence of energy on detector DQE.Conclusions: Both the DQE and eDQE data showed only a small sensitivity to T/F setting for these two systems. The eDQE showed clear preferences in terms of scatter reduction, being highest for the grid-in geometry for PMMA thicknesses of 40 mm and above. The SdNR and d? based figures of merit, which contain additional weighting for contrast and dose, pointed to specific T/F settings for both systems.

  15. Method and system of measuring ultrasonic signals in the plane of a moving web

    DOE Patents [OSTI]

    Hall, M.S.; Jackson, T.G.; Wink, W.A.; Knerr, C.

    1996-02-27T23:59:59.000Z

    An improved system for measuring the velocity of ultrasonic signals within the plane of moving web-like materials, such as paper, paperboard and the like is disclosed. In addition to velocity measurements of ultrasonic signals in the plane of the web in the machine direction, MD, and a cross direction, CD, generally perpendicular to the direction of the traveling web, therefore, one embodiment of the system in accordance with the present invention is also adapted to provide on-line indication of the polar specific stiffness of the moving web. In another embodiment of the invention, the velocity of ultrasonic signals in the plane of the web are measured by way of a plurality of ultrasonic transducers carried by synchronously driven wheels or cylinders, thus eliminating undue transducer wear due to any speed differences between the transducers and the web. In order to provide relatively constant contact force between the transducers and the webs, the transducers are mounted in a sensor housings which include a spring for biasing the transducer radially outwardly. The sensor housings are adapted to be easily and conveniently mounted to the carrier to provide a relatively constant contact force between the transducers and the moving web. 37 figs.

  16. Twenty-channel grating polychromator diagnostic system for electron cyclotron emission measurement in JT-60

    SciTech Connect (OSTI)

    Ishida, S.; Nagashima, A.; Sato, M.; Isei, N.; Matoba, T. (Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Naka-gun, Naka-machi, Ibaraki-ken (Japan))

    1990-10-01T23:59:59.000Z

    A twenty-channel grating polychromator diagnostic system has been built to measure the temporal evolution of local electron temperatures in JT-60. A cross Czerny--Turner diffraction grating spectrometer is utilized for the measurement of second-harmonic electron cyclotron emission with extraordinary modes in the range 85--300 GHz, in which a grating plate grooved on both faces with different grating periods is applied effectively to yield a wide coverage for the toroidal fields. The grating angle is automatically set up by control of a stepping motor according to the relation of the grating equation. The diffracted light is detected by 20 indium-antimonide hot-electron bolometers cooled at 4.3 K in a modified Solvay cycle cryogenic refrigerator. A typical resolving power of the instrument was measured to be {lambda}/{Delta}{lambda}{approximately}130, providing a spatial resolution of 2.3 cm at the plasma center. The transmission line over {approximately}38 m long is composed of oversized {ital S}-band waveguides. The total transmissivity of this system is estimated to be {approximately}0.01.

  17. Harmonic measurements made on the upgraded New Zealand inter-island HVdc transmission system

    SciTech Connect (OSTI)

    Miller, A.J.V.; Dewe, M.B. (Univ. of Canterbury, Christchurch (New Zealand))

    1994-07-01T23:59:59.000Z

    This paper introduces the recent upgrade to the New Zealand inter-island HVdc transmission system. It then details the procedure of one of several tests conducted to measure harmonic levels created by the upgraded transmission system. Harmonic levels were measured using the CHART (Continuous Harmonic Analysis in Real-Time) harmonic monitoring instrumentation. The connection of CHART to the high voltage network and its configuration during the test is discussed. A sample of results gathered while monitoring are presented, including characteristic harmonics of the converter, and maximum voltage and current levels up to the 50th harmonic for each of the three a.c. phases. During the tests one of the two a.c. harmonic filters was switched out to observe its effect on harmonic levels. It was found that with both a.c. harmonic filters operating, most harmonic levels were lower than with only one filter operating. However some harmonic levels, namely the 4th harmonic, were larger with both filters operating. The paper is concluded with a discussion of the results and of the difficulties encountered in measuring harmonics of very low level.

  18. NCS EMP (National Communications System Electromagnetic Pulse) mitigation program: Aerial TI System test plan. Final report

    SciTech Connect (OSTI)

    Not Available

    1986-08-01T23:59:59.000Z

    This program mitigates the damaging effects of nuclear weapons on regional and national telecommunications capabilities. To meet this objective, the OMNCS has sponsored efforts to create a network level model to assess the effects of High-Altitude EMP (HEMP). In addition, the OMNCS has sponsored efforts to collect the level HEMP effects to data required to support the network-level model. The products of this model will assist the NCS in identifying potential vulnerabilities of national telecommunications capabilities to HEMP and to support National Security and Emergency Preparedness (NSEP) initiatives.

  19. Indicators for assessing socioeconomic sustainability of bioenergy systems: A short list of practical measures.

    SciTech Connect (OSTI)

    Davis, Maggie R [ORNL; Downing, Mark [ORNL; Dale, Virginia H [ORNL; Efroymson, Rebecca Ann [ORNL; Hilliard, Michael R [ORNL; Kline, Keith L [ORNL; Langholtz, Matthew H [ORNL; Leiby, Paul Newsome [ORNL; Oladosu, Gbadebo A [ORNL

    2013-01-01T23:59:59.000Z

    Indicators are needed to assess both socioeconomic and environmental sustainability of bioenergy systems. Effective indicators can help to identify and quantify the sustainability attributes of bioenergy options. We identify 16 socioeconomic indicators that fall into the categories of social well-being, energy security, trade, profitability, resource conservation, and social acceptability. The suite of indicators is predicated on the existence of basic institutional frameworks to provide governance, legal, regulatory and enforcement services. Indicators were selected to be practical, sensitive to stresses, unambiguous, anticipatory, predictive, calibrated with known variability, and sufficient when considered collectively. The utility of each indicator, methods for its measurement, and applications appropriate for the context of particular bioenergy systems are described along with future research needs. Together, this suite of indicators is hypothesized to reflect major socioeconomic effects of the full supply chain for bioenergy, including feedstock production and logistics, conversion to biofuels, biofuel logistics and biofuel end uses. Ten of those 16 indicators are proposed to be the minimum list of practical measures of socioeconomic aspects of bioenergy sustainability. Coupled with locally-prioritized environmental indicators, we propose that these socioeconomic indicators can provide a basis to quantify and evaluate sustainability of bioenergy systems across many regions in which they will be deployed.

  20. Results of the LHC Prototype Chromaticity Measurement System Studies in the CERN-SPS

    E-Print Network [OSTI]

    Steinhagen, R; Bohl, T; Gasior, M; Jones, O R; Kasinski, K K; Wenninger, J

    2008-01-01T23:59:59.000Z

    Tune and chromaticity control is an integral part of safe and reliable LHC operation. Tight tolerances on the maximum beam excursions allow excitation amplitudes of less than 30 $\\mu$m. This leaves only a small margin for transverse beam and momentum excitations, required for measuring tune and chromaticity. This contribution discusses the baseline LHC continuous chromaticity measurement with results from tests at the CERN-SPS. The system is based on continuous tracking of the tune using a Phase- Locked-Loop (PLL) while modulating the beam momentum. The high PLL tune resolution achieved, made it possible to detect chromaticity changes well below the nominally required 1 unit for relative momentum modulations of only $2·10^{-5}$. The sensitive tune measurement frontend employed allowed the PLL excitation and radial amplitudes to be kept below a few micrometers. These results show that this type of measurement can be considered as practically non-perturbative permitting its use even during nominal LHC operat...

  1. Transition to classical chaos in a coupled quantum system through continuous measurement

    SciTech Connect (OSTI)

    Ghose, Shohini; Alsing, Paul; Deutsch, Ivan; Bhattacharya, Tanmoy; Habib, Salman [Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131 (United States); T-8 Theoretical Division, MS B285, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

    2004-05-01T23:59:59.000Z

    Continuous observation of a quantum system yields a measurement record that faithfully reproduces the classically predicted trajectory provided that the measurement is sufficiently strong to localize the state in phase space but weak enough that quantum backaction noise is negligible. We investigate the conditions under which classical dynamics emerges, via a continuous position measurement, for a particle moving in a harmonic well with its position coupled to internal spin. As a consequence of this coupling, we find that classical dynamics emerges only when the position and spin actions are both large compared to ({Dirac_h}/2{pi}). These conditions are quantified by placing bounds on the size of the covariance matrix which describes the delocalized quantum coherence over extended regions of phase space. From this result, it follows that a mixed quantum-classical regime (where one subsystem can be treated classically and the other not) does not exist for a continuously observed spin-(1/2) particle. When the conditions for classicality are satisfied (in the large-spin limit), the quantum trajectories reproduce both the classical periodic orbits as well as the classically chaotic phase space regions. As a quantitative test of this convergence, we compute the largest Lyapunov exponent directly from the measured quantum trajectories and show that it agrees with the classical value.

  2. Parameter scaling in a novel measure of quantum-classical difference for decohering chaotic systems

    E-Print Network [OSTI]

    Nathan Wiebe; Parin Sripakdeevong; Arnaldo Gammal; Arjendu K. Pattanayak

    2009-04-21T23:59:59.000Z

    In this paper we introduce a diagnostic for measuring the quantum-classical difference for open quantum systems, which is the normalized size of the quantum terms in the Master equation for Wigner function evolution. For a driven Duffing oscillator, this measure shows remarkably precise scaling over long time-scales with the parameter $\\zeta_0=\\hbar^2/D$. We also see that, independent of $\\zeta_0$ the dynamics follows a similar pattern. For small $\\zeta_0$ all of our curves collapses to essentially a single curve when scaled by the maximum value of the quantum-classical difference. In both limits of large and small $\\zeta_0$ we see a saturation effect in the size of the quantum-classical difference; that is, the instantaneous difference between quantum and classical evolutions cannot be either too small or too large.

  3. Direct measurement of the cosmic acceleration by 21cm absorption systems

    E-Print Network [OSTI]

    Yu, Hao-Ran; Pen, Ue-Li

    2013-01-01T23:59:59.000Z

    So far there is only indirect evidence that the universe is undergoing an accelerated expansion. The evidence for cosmic acceleration is based on the observation of different objects at different distances, and requires invoking the Copernican cosmological principle, and Einstein's equations of motion. We examine the direct observability using recession velocity drifts (Sandage-Loeb effect) of 21cm hydrogen absorption systems in upcoming radio surveys. This measures the change in velocity of the {\\it same} objects separate by a time interval and is a model-independent measure of acceleration. We forecast that for a CHIME-like survey with a decade time span, we can detect the acceleration of a $\\Lambda$CDM universe with $\\sim 6\\sigma$ confidence. This acceleration test requires modest data analysis and storage changes from the normal processing, and cannot be recovered retroactively.

  4. Measurement of the target current by inductive probe during laser interaction on terawatt laser system PALS

    SciTech Connect (OSTI)

    Cikhardt, J.; Klír, D.; ?ezá?, K. [Czech Technical University in Prague, Faculty of Electrical Engineering, 166 27 Prague (Czech Republic); Institute of Plasma Physics AS CR, 182 00 Prague (Czech Republic); Krása, J.; De Marco, M.; Pfeifer, M.; Velyhan, A.; Krouský, E. [Institute of Physics AS CR, 182 21 Prague (Czech Republic); Cikhardtová, B.; Kubeš, P.; Kravárik, J. [Czech Technical University in Prague, Faculty of Electrical Engineering, 166 27 Prague (Czech Republic); Ullschmied, J.; Skála, J. [Institute of Plasma Physics AS CR, 182 00 Prague (Czech Republic)

    2014-10-15T23:59:59.000Z

    Measurements of the return-current flowing through a solid target irradiated with the sub-nanosecond kJ-class Prague Asterix Laser System is reported. A new inductive target probe was developed which allows us measuring the target current derivative in a kA/ns range. The dependences of the target current on the laser pulse energy for cooper, graphite, and polyethylene targets are reported. The experiment shows that the target current is proportional to the deposited laser energy and is strongly affected by the shot-to-shot fluctuations. The corresponding maximum target charge exceeded a value of 10 ?C. A return-current dependence of the electromagnetic pulse produced by the laser-target interaction is presented.

  5. Aerial Photography At Dixie Valley Geothermal Area (Wesnousky...

    Open Energy Info (EERE)

    Field And Other Geothermal Fields Of The Basin And Range David D. Blackwell, Richard P. Smith, Al Waibel, Maria C. Richards, Patrick Stepp (2009) Why Basin and Range Systems are...

  6. Error Detection, Factorization and Correction for Multi-View Scene Reconstruction from Aerial Imagery

    SciTech Connect (OSTI)

    Hess-Flores, M

    2011-11-10T23:59:59.000Z

    Scene reconstruction from video sequences has become a prominent computer vision research area in recent years, due to its large number of applications in fields such as security, robotics and virtual reality. Despite recent progress in this field, there are still a number of issues that manifest as incomplete, incorrect or computationally-expensive reconstructions. The engine behind achieving reconstruction is the matching of features between images, where common conditions such as occlusions, lighting changes and texture-less regions can all affect matching accuracy. Subsequent processes that rely on matching accuracy, such as camera parameter estimation, structure computation and non-linear parameter optimization, are also vulnerable to additional sources of error, such as degeneracies and mathematical instability. Detection and correction of errors, along with robustness in parameter solvers, are a must in order to achieve a very accurate final scene reconstruction. However, error detection is in general difficult due to the lack of ground-truth information about the given scene, such as the absolute position of scene points or GPS/IMU coordinates for the camera(s) viewing the scene. In this dissertation, methods are presented for the detection, factorization and correction of error sources present in all stages of a scene reconstruction pipeline from video, in the absence of ground-truth knowledge. Two main applications are discussed. The first set of algorithms derive total structural error measurements after an initial scene structure computation and factorize errors into those related to the underlying feature matching process and those related to camera parameter estimation. A brute-force local correction of inaccurate feature matches is presented, as well as an improved conditioning scheme for non-linear parameter optimization which applies weights on input parameters in proportion to estimated camera parameter errors. Another application is in reconstruction pre-processing, where an algorithm detects and discards frames that would lead to inaccurate feature matching, camera pose estimation degeneracies or mathematical instability in structure computation based on a residual error comparison between two different match motion models. The presented algorithms were designed for aerial video but have been proven to work across different scene types and camera motions, and for both real and synthetic scenes.

  7. agroforestry farming system: Topics by E-print Network

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

    of Pohnpei. MacLean and others (1986), using aerial photos Standiford, Richard B. 6 ASSESSING CARBON POOLS IN AGROFORESTRY SYSTEMS: A META-ANALYSIS. Open Access Theses and...

  8. Exclusive light particle measurements for the system $^{19}$F + $^{12}$C at 96 MeV

    E-Print Network [OSTI]

    D. Bandyopadhyay; C. Bhattacharya; K. Krishan; S. Bhattacharya; S. K. Basu; A. Chatterjee; S. Kailas; A. Shrivastava; K. Mahata

    2001-10-04T23:59:59.000Z

    Decay sequence of hot ${31}^$P nucleus has been investigated through exclusive light charged particle measurements in coincidence with individual evaporation residues using the reaction ${19}^$F (96 MeV) + ${12}^$C. Information on the sequential decay chain have been extracted by confronting the data with the predictions of the statistical model. It is observed from the present analysis that such exclusive light charged particle data may be used as a powerful tool to probe the decay sequence of the hot light compound systems.

  9. Cleaning Inefficiency of the LHC Collimation System During the Energy Ramp: Simulations and Measurements

    E-Print Network [OSTI]

    Quaranta, E; Lari, L; Mirarchi, D; Redaelli, S; Rossi, A; Salvachua, B; Valentino, G

    2013-01-01T23:59:59.000Z

    The cleaning inefficiency of the LHC collimation system for the operational scenarios in 2010-12 has already been studied in detail at injection and top energy (450 GeV and 4 TeV respectively). In this paper, results are presented for the cleaning inefficiency at intermediate energies, simulated using the SixTrack code. The first comparisons with measured provoked losses are discussed. This study helps in benchmarking the energy dependence of the simulated inefficiency and is thus important for the extrapolation to future operation at higher energies.

  10. Decoherence Dynamics of Measurement-Induced Nonlocality and comparison with Geometric Discord for two qubit systems

    E-Print Network [OSTI]

    Ajoy Sen; Debasis Sarkar; Amit Bhar

    2014-05-13T23:59:59.000Z

    We check the decoherence dynamics of Measurement-induced Nonlocality(in short, MIN) and compare it with geometric discord for two qubit systems. There are quantum states, on which the action of dephasing channel cannot destroy MIN in finite or infinite time. We check the additive dynamics of MIN on a qubit state under two independent noise. Geometric discord also follows such additive dynamics like quantum discord. We have further compared non-Markovian evolution of MIN and geometric discord under dephasing and amplitude damping noise for pure state and it shows distinct differences between their dynamics.

  11. Faraday-effect polarimeter-interferometer system for current density measurement on EAST

    SciTech Connect (OSTI)

    Liu, H. Q.; Jie, Y. X., E-mail: yx-jie@ipp.ac.cn; Zou, Z. Y.; Li, W. M.; Wang, Z. X.; Qian, J. P.; Yang, Y.; Zeng, L.; Wei, X. C.; Hu, L. Q.; Wan, B. N. [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031 (China); Ding, W. X.; Brower, D. L. [Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095 (United States); Lan, T.; Li, G. S. [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031 (China); University of Science and Technology of China, Hefei, Anhui 230026 (China)

    2014-11-15T23:59:59.000Z

    A multichannel far-infrared laser-based POlarimeter-INTerferometer (POINT) system utilizing the three-wave technique is under development for current density and electron density profile measurements in the EAST tokamak. Novel molybdenum retro-reflectors are mounted in the inside wall for the double-pass optical arrangement. A Digital Phase Detector with 250 kHz bandwidth, which will provide real-time Faraday rotation angle and density phase shift output, have been developed for use on the POINT system. Initial calibration indicates the electron line-integrated density resolution is less than 5 × 10{sup 16} m{sup ?2} (?2°), and the Faraday rotation angle rms phase noise is <0.1°.

  12. Dynamic measurement of heat loss coefficients through Trombe wall glazing systems

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1981-01-01T23:59:59.000Z

    A Trombe wall presents a unique opportunity to measure the heat-loss coefficient through the glazing system because the wall itself can be used as a heat meter. Since the instantaneous heat flux through the outer wall surface can be determined, the heat loss coefficient at night can be calculated by dividing by the wall surface-to-ambient temperature difference. This technique has been used to determine heat-loss coefficients for Los Alamos test rooms during the winter of 1980-1981. Glazing systems studied include single and double glazing both with and without night insulation used in conjunction with a flat black paint, and both single and double glazing used in conjunction with a selective surface.

  13. Method and system for measuring multiphase flow using multiple pressure differentials

    DOE Patents [OSTI]

    Fincke, James R. (Idaho Falls, ID)

    2001-01-01T23:59:59.000Z

    An improved method and system for measuring a multiphase flow in a pressure flow meter. An extended throat venturi is used and pressure of the multiphase flow is measured at three or more positions in the venturi, which define two or more pressure differentials in the flow conduit. The differential pressures are then used to calculate the mass flow of the gas phase, the total mass flow, and the liquid phase. The method for determining the mass flow of the high void fraction fluid flow and the gas flow includes certain steps. The first step is calculating a gas density for the gas flow. The next two steps are finding a normalized gas mass flow rate through the venturi and computing a gas mass flow rate. The following step is estimating the gas velocity in the venturi tube throat. The next step is calculating the pressure drop experienced by the gas-phase due to work performed by the gas phase in accelerating the liquid phase between the upstream pressure measuring point and the pressure measuring point in the venturi throat. Another step is estimating the liquid velocity in the venturi throat using the calculated pressure drop experienced by the gas-phase due to work performed by the gas phase. Then the friction is computed between the liquid phase and a wall in the venturi tube. Finally, the total mass flow rate based on measured pressure in the venturi throat is calculated, and the mass flow rate of the liquid phase is calculated from the difference of the total mass flow rate and the gas mass flow rate.

  14. Lichens as bioindicators of aerial fallout of heavy metals in Zaria, Nigeria

    SciTech Connect (OSTI)

    Kapu, M.M. (Univ. of Illinois, Urbana (United States) Ahmadu Bello Univ., Zaria (Nigeria)); Ipaye, M.M.; Ega, R.A.I.; Balarabe, M.L. (Ahmadu Bello Univ., Zaria (Nigeria)); Akanya, H.O. (Federal Univ. of Technology, Minna (Nigeria)); Schaeffer, D.J. (Univ. of Illinois, Urbana (United States))

    1991-09-01T23:59:59.000Z

    Lichens and other epiphytic cryptogams possess efficient ion-exchange mechanisms which enable many species to accumulate airborne metals and which probably contribute to their tolerating metals at concentrations high enough to cause death to other plant species. A direct relationship between the distribution pattern of lichens and the trace metal content of the surrounding air has been demonstrated. The present study used lichens to assess the aerial fallout of heavy metals from traffic in Zaria, northern Nigeria.

  15. Aerial photographic monitoring of spruce damage in Bayerischer Wald National Park, Federal Republic of Germany

    E-Print Network [OSTI]

    Goebel, John Martin

    1989-01-01T23:59:59.000Z

    pollutants, it is important to consider plot aspect in detail. Since prevailing winds are Easterly-Southeasterly, i. e. , blow out of the West and No~, it can be ajax. cted that slopes with West and Nort)msst ~ will be moze damaged than others. These data... of the requirements for the Degree of MASTER OF AGRICULTURE August, 1989 Major Subject: Natural Resources Development Recreation and Parks AERIAL PHOTOGRAPHIC MONITORZNG OF SPRUCE DAMAGE ZN BAYERISCHER WELD NATIONAL PARK, Federal Republic of Germany A...

  16. Stability Measurements for Alignment of the NIF Neutron Imaging System Pinhole Array

    SciTech Connect (OSTI)

    Fittinghoff, D N; Bower, D E; Drury, O B; Dzenitis, J M; Frank, M; Buckles, R A; Munson, C; Wilde, C H

    2011-03-29T23:59:59.000Z

    The alignment system for the National Ignition Facility's neutron imaging system has been commissioned and measurements of the relative stability of the 90-315 DIM, the front and the back of the neutron imaging pinhole array and an exploding pusher target have been made using the 90-135 and the 90-258 opposite port alignment systems. Additionally, a laser beam shot from the neutron-imaging Annex and reflected from a mirror at the back of the pinhole array was used to monitor the pointing of the pinhole. Over a twelve hour period, the relative stability of these parts was found to be within {approx} {+-}18 {micro}m rms even when using manual methods for tracking the position of the objects. For highly visible features, use of basic particle tracking techniques found that the front of the pinhole array was stable relative to the 90-135 opposite port alignment camera to within {+-}3.4 {micro}m rms. Reregistration, however, of the opposite port alignment systems themselves using the target alignment sensor was found to change the expected position of target chamber center by up to 194 {micro}m.

  17. Protocol for Uniformly Measuring and Expressing the Performance of Energy Storage Systems

    SciTech Connect (OSTI)

    Bray, Kathryn L.; Conover, David R.; Kintner-Meyer, Michael CW; Viswanathan, Vijayganesh; Ferreira, Summer; Rose, David; Schoenwald, David

    2012-10-01T23:59:59.000Z

    The U.S. Department of Energy’s Energy Storage Systems (ESS) Program, through the support of Pacific Northwest National Laboratory (PNNL) and Sandia National Laboratories (SNL), facilitated the development of the protocol provided in this report. The focus of the protocol is to provide a uniform way of measuring, quantifying, and reporting the performance of EESs in various applications; something that does not exist today and, as such, is hampering the consideration and use of this technology in the market. The availability of an application-specific protocol for use in measuring and expressing performance-related metrics of ESSs will allow technology developers, power-grid operators and other end-users to evaluate the performance of energy storage technologies on a uniform and comparable basis. This will help differentiate technologies and products for specific application(s) and provide transparency in how performance is measured. It also will assist utilities and other consumers of ESSs make more informed decisions as they consider the potential application and use of ESSs, as well as form the basis for documentation that might be required to justify utility investment in such technologies.

  18. Protocol for uniformly measuring and expressing the performance of energy storage systems.

    SciTech Connect (OSTI)

    Ferreira, Summer Rhodes; Rose, David Martin; Schoenwald, David Alan; Bray, Kathy [Pacific Northwest National Laboratory, Richland, WA; Conover, David [Pacific Northwest National Laboratory, Richland, WA; Kintner-Meyer, Michael [Pacific Northwest National Laboratory, Richland, WA; Viswanathan, Vilayanur [Pacific Northwest National Laboratory, Richland, WA

    2013-08-01T23:59:59.000Z

    The U.S. Department of Energy's Energy Storage Systems (ESS) Program, through the support of Pacific Northwest National Laboratory (PNNL) and Sandia National Laboratories (SNL), facilitated the development of the protocol provided in this report. The focus of the protocol is to provide a uniform way of measuring, quantifying, and reporting the performance of ESSs in various applications; something that does not exist today and, as such, is hampering the consideration and use of this technology in the market. The availability of an application-specific protocol for use in measuring and expressing performance-related metrics of ESSs will allow technology developers, power-grid operators and other end-users to evaluate the performance of energy storage technologies on a uniform and comparable basis. This will help differentiate technologies and products for specific application(s) and provide transparency in how performance is measured. It also will assist utilities and other consumers of ESSs to make more informed decisions as they consider the potential application and use of ESSs, as well as form the basis for documentation that might be required to justify utility investment in such technologies.

  19. Energy Consumption Measuring and Diagnostic Analysis of Air-conditioning Water System in a Hotel Building in Harbin

    E-Print Network [OSTI]

    Zhao, T.; Zhang, J.; Li, Y.

    2006-01-01T23:59:59.000Z

    This paper introduces an air-conditioning water system in a hotel building in Harbin, finishes its air-conditioning energy consumption measurement in summer conditions, and presents an estimation index of performance of chiller, pump and motor...

  20. Chemistry Department Instrumentation 1) JEOL ECA-500: 500 MHz Liquids only open access system. Capable of measuring

    E-Print Network [OSTI]

    only open access system. Capable of measuring 1H, 13C, 19F & 31P Nuclei. Triple Quad analyzer with MS/MS capabilities. Has both EI and CI modes

  1. Systems and methods for optically measuring properties of hydrocarbon fuel gases

    DOE Patents [OSTI]

    Adler-Golden, Steven (Newtonville, MA); Bernstein, Lawrence S. (Lexington, MA); Bien, Fritz (Concord, MA); Gersh, Michael E. (Bedford, MA); Goldstein, Neil (Belmont, MA)

    1998-10-13T23:59:59.000Z

    A system and method for optical interrogation and measurement of a hydrocarbon fuel gas includes a light source generating light at near-visible wavelengths. A cell containing the gas is optically coupled to the light source which is in turn partially transmitted by the sample. A spectrometer disperses the transmitted light and captures an image thereof. The image is captured by a low-cost silicon-based two-dimensional CCD array. The captured spectral image is processed by electronics for determining energy or BTU content and composition of the gas. The innovative optical approach provides a relatively inexpensive, durable, maintenance-free sensor and method which is reliable in the field and relatively simple to calibrate. In view of the above, accurate monitoring is possible at a plurality of locations along the distribution chain leading to more efficient distribution.

  2. Systems and methods for optically measuring properties of hydrocarbon fuel gases

    DOE Patents [OSTI]

    Adler-Golden, S.; Bernstein, L.S.; Bien, F.; Gersh, M.E.; Goldstein, N.

    1998-10-13T23:59:59.000Z

    A system and method for optical interrogation and measurement of a hydrocarbon fuel gas includes a light source generating light at near-visible wavelengths. A cell containing the gas is optically coupled to the light source which is in turn partially transmitted by the sample. A spectrometer disperses the transmitted light and captures an image thereof. The image is captured by a low-cost silicon-based two-dimensional CCD array. The captured spectral image is processed by electronics for determining energy or BTU content and composition of the gas. The innovative optical approach provides a relatively inexpensive, durable, maintenance-free sensor and method which is reliable in the field and relatively simple to calibrate. In view of the above, accurate monitoring is possible at a plurality of locations along the distribution chain leading to more efficient distribution. 14 figs.

  3. The artificial night sky brightness mapped from DMSP Operational Linescan System measurements

    E-Print Network [OSTI]

    P. Cinzano; F. Falchi; C. D. Elvidge; K. E. Baugh

    2000-03-28T23:59:59.000Z

    We present a method to map the artificial sky brightness across large territories in astronomical photometric bands with a resolution of approximately 1 km. This is useful to quantify the situation of night sky pollution, to recognize potential astronomical sites and to allow future monitoring of trends. The artificial sky brightness present in the chosen direction at a given position on the Earth's surface is obtained by the integration of the contributions produced by every surface area in the surrounding. Each contribution is computed based on detailed models for the propagation in the atmosphere of the upward light flux emitted by the area. The light flux is measured with top of atmosphere radiometric observations made by the Defense Meteorological Satellite Program (DMSP) Operational Linescan System. We applied the described method to Europe obtaining the maps of artificial sky brightness in V and B bands.

  4. Development of an integrated energetic neutral particle measurement system on experimental advanced full superconducting tokamak

    SciTech Connect (OSTI)

    Zhu, Y. B., E-mail: YubaoZ@UCI.EDU; Liu, D.; Heidbrink, W. W. [Department of Physics and Astronomy, University of California, Irvine, California 92697-4575 (United States); Zhang, J. Z.; Qi, M. Z.; Xia, S. B.; Wan, B. N.; Li, J. G. [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)

    2014-11-15T23:59:59.000Z

    Full function integrated, compact silicon photodiode based solid state neutral particle analyzers (ssNPA) have been developed for energetic particle (EP) relevant studies on the Experimental Advanced Superconducting Tokamak (EAST). The ssNPAs will be mostly operated in advanced current mode with a few channels to be operated in conventional pulse-counting mode, aiming to simultaneously achieve individually proved ultra-fast temporal, spatial, and spectral resolution capabilities. The design details together with considerations on EAST specific engineering realities and physics requirements are presented. The system, including a group of single detectors on two vertical ports and two 16-channel arrays on a horizontal port, can provide both active and passive charge exchange measurements. ssNPA detectors, with variable thickness of ultra thin tungsten dominated foils directly deposited on the front surface, are specially fabricated and utilized to achieve about 22 keV energy resolution for deuterium particle detection.

  5. Noise study of the digital seismic system amplifiers applied to earth noise measurements

    SciTech Connect (OSTI)

    Valk, D.

    1982-08-31T23:59:59.000Z

    Some major noise problems afflicting the Digital Seismic System are briefly examined for the purpose of improving the signal-to-noise ratio for earth noise measurements. After concluding that the Tustin Electronics Co. 1560 instrumentation amplifiers presently being used in the system obscure the earth noise data, a comprehensive study (part experimental and part theoretical) of amplifier noise is performed. Noise curves in the approximate frequency range of 0.01 to 50 Hz for the Tustin amplifiers as well as for a new design based on the PMI SSS725 operational amplifier are experimentally determined. The curves, which include noise current and noise voltage densities as well as total noise, are compared to each other, and to the Peterson low earth noise curve. The comparisons are done with amplifier inputs shorted, connected to one and then two 500-..cap omega.. seismometer data coils, and connected to one 20-k..cap omega.. seismometer data coil. The total noise curve of the new amplifier is found to shift further below that of the Tustin amplifier as data coil resistance is increased. A goal of lowering amplifier noise 10 dB or more below the Peterson earth noise power density curve for frequencies greater than .03 Hz is desired. The new amplifier design, used in conjunction with a 20-k..cap omega.. data coil, is found to satisfy this 10 dB or more signal-to-noise ratio for earth noise measurements. It is also found that the difference between earth noise and new amplifier noise magnitudes is increased as data coil resistance is increased.

  6. Environmental Measurement While Drilling System for Real-Time Field Screening of Contaminants

    SciTech Connect (OSTI)

    Lockwood, G.J.; Normann, R.A.; Williams, C.V.

    1999-02-22T23:59:59.000Z

    Sampling during environmental drilling is essential to fully characterize the spatial distribution and migration of subsurface contaminants. However, analysis of the samples is expensive and time-consuming: off-site laboratory analysis can take weeks or months. Real-time information on environmental conditions, drill bit location and temperature during drilling is valuable in many environmental restoration operations. This type of information can be used to provide field screening data and improved efficiency of site characterization activities. The Environmental Measurement-While-Drilling (EMWD) System represents an innovative blending of new and existing technology in order to obtain real-time data during drilling. The system consists of two subsystems. The down-hole subsystem (at the drill bit) consists of sensors, a power supply, a signal conditioning and transmitter board, and a radio-frequency (RF) coaxial cable. The up-hole subsystem consists of a battery pack/coil, pickup coil, receiver, and personal computer. The system is compatible with fluid miser drill pipe, a directional drilling technique that uses minimal drilling fluids and generates little to no secondary waste. In EMWD, downhole sensors are located behind the drill bit and linked by a high-speed data transmission system to a computer at the surface. Sandia-developed Windows{trademark}-based software is used for data display and storage. As drilling is conducted, data is collected on the nature and extent of contamination, enabling on-the-spot decisions regarding drilling and sampling strategies. Initially, the downhole sensor consisted of a simple gamma radiation detector, a Geiger-Mueller tube (GMT). The design includes data assurance techniques to increase safety by reducing the probability of giving a safe indication when an unsafe condition exists. The EMWD system has been improved by the integration of a Gamma Ray Spectrometer (GRS) in place of the GMT. The GRS consists of a sodium iodide-thallium activated crystal coupled to a photomultiplier tube (PMT). The output of the PMT goes to a multichannel analyzer (MCA).The MCA data is transmitted to the surface via a signal conditioning and transmitter board similar to that used with the GMT. The EMWD system is described and the results of the GRS field tests and field demonstration are presented.

  7. Ionospheric currents correlated with geomagnetic induced currents; Freja magnetic field measurements and the sunburst monitor system

    SciTech Connect (OSTI)

    Zanetti, L.J.; Potemra, T.A.; Anderson, B.J.; Erlandson, R.E.; Holland, D.B. [Johns Hopkins Univ., Laurel, MD (United States)] [Johns Hopkins Univ., Laurel, MD (United States); Acuna, M.H. [NASA/Goddard Space Flight Center, Greenbelt, MD (United States)] [NASA/Goddard Space Flight Center, Greenbelt, MD (United States); Kappenman, J. [Minnesota Power, Duluth, MN (United States)] [Minnesota Power, Duluth, MN (United States); Lesher, R.; Feero, B. [Electric Research and Management, Inc., State College, PA (United States)] [Electric Research and Management, Inc., State College, PA (United States)

    1994-08-15T23:59:59.000Z

    Temporal and spatial fluctuations of large-scale electric currents totaling millions of amperes in the ionosphere have long been known to induce current and voltage in the Earth`s surface and on large manmade conductive structures. A strong, persistent solar wind can interact with the geomagnetic environment and produce auroral zone currents at mid latitudes. Presented here is a specific correlation of ionospheric auroral currents inferred from magnetic field measurements from the Swedish Freja satellite and induced current in the electric power distribution system on the east coast of the United States, in particular the Chalk Point, Maryland, transformer station. The event discussed here registered a Kp level of 6 to 8 and occurred on April 4-5, 1993. An important aspect is that information from both of these space- and ground-based monitoring systems is available automatically and in real time. In addition, satellite data from earlier local times, e.g., data monitored from European ground stations, can give precursor information of later North American geomagnetic activity. 24 refs., 2 figs.

  8. Tomographic imaging system for measuring impurity line emission in a field-reversed configuration

    SciTech Connect (OSTI)

    Roche, T.; Heidbrink, W. W.; McWilliams, R. [University of California, Irvine, California 92697 (United States); Bolte, N.; Garate, E.; Wessel, F. [University of California, Irvine, California 92697 (United States); Tri Alpha Energy, Inc., Rancho Santa Margarita, California 92688 (United States)

    2012-10-15T23:59:59.000Z

    A 16 chord optical tomography system has been developed and implemented in the flux coil generated-field reversed configuration (FRC). The chords are arranged in two fans of eight, which cover {approx}35% of the vessel area at the midplane. Each illuminate separate photomultiplier tubes (PMTs) which are fitted with narrow band-pass filters. In this case, filters are centered at 434.8 nm to measure emission from singly ionized argon. PMT crosstalk is negligible. Background noise due to electron radiation and H{sub {gamma}} line radiation is <10% of argon emission. The spatial resolution of the reconstruction is 1.5 cm. Argon is introduced using a puff valve and tube designed to impart the gas into the system as the FRC is forming. Reconstruction of experimental data results in time-dependent, 2D emissivity profiles of the impurity ions. Analysis of these data show radial, cross-field diffusion to be in the range of 10-10{sup 3} m{sup 2}/s during FRC equilibrium.

  9. Measurement of the Tracer Gradient and Sampling System Bias of the Hot Fuel Examination Facility Stack Air Monitoring System

    SciTech Connect (OSTI)

    Glissmeyer, John A.; Flaherty, Julia E.

    2011-07-20T23:59:59.000Z

    This report describes tracer gas uniformity and bias measurements made in the exhaust air discharge of the Hot Fuel Examination Facility at Idaho National Laboratory. The measurements were a follow-up on earlier measurements which indicated a lack of mixing of the two ventilation streams being discharged via a common stack. The lack of mixing is detrimental to the accuracy of air emission measurements. The lack of mixing was confirmed in these new measurements. The air sampling probe was found to be out of alignment and that was corrected. The suspected sampling bias in the air sample stream was disproved.

  10. Beam Size Measurement by Optical Diffraction Radiation and Laser System for Compton Polarimeter

    SciTech Connect (OSTI)

    Chuyu Liu

    2012-12-31T23:59:59.000Z

    Beam diagnostics is an essential constituent of any accelerator, so that it is named as "organs of sense" or "eyes of the accelerator." Beam diagnostics is a rich field. A great variety of physical effects or physical principles are made use of in this field. Some devices are based on electro-magnetic influence by moving charges, such as faraday cups, beam transformers, pick-ups; Some are related to Coulomb interaction of charged particles with matter, such as scintillators, viewing screens, ionization chambers; Nuclear or elementary particle physics interactions happen in some other devices, like beam loss monitors, polarimeters, luminosity monitors; Some measure photons emitted by moving charges, such as transition radiation, synchrotron radiation monitors and diffraction radiation-which is the topic of the first part of this thesis; Also, some make use of interaction of particles with photons, such as laser wire and Compton polarimeters-which is the second part of my thesis. Diagnostics let us perceive what properties a beam has and how it behaves in a machine, give us guideline for commissioning, controlling the machine and indispensable parameters vital to physics experiments. In the next two decades, the research highlight will be colliders (TESLA, CLIC, JLC) and fourth-generation light sources (TESLA FEL, LCLS, Spring 8 FEL) based on linear accelerator. These machines require a new generation of accelerator with smaller beam, better stability and greater efficiency. Compared with those existing linear accelerators, the performance of next generation linear accelerator will be doubled in all aspects, such as 10 times smaller horizontal beam size, more than 10 times smaller vertical beam size and a few or more times higher peak power. Furthermore, some special positions in the accelerator have even more stringent requirements, such as the interaction point of colliders and wigglor of free electron lasers. Higher performance of these accelerators increases the difficulty of diagnostics. For most cases, intercepting measurements are no longer acceptable, and nonintercepting method like synchrotron radiation monitor can not be applied to linear accelerators. The development of accelerator technology asks for simutanous diagnostics innovations, to expand the performance of diagnostic tools to meet the requirements of the next generation accelerators. Diffraction radiation and inverse Compton scattering are two of the most promising techniques, their nonintercepting nature avoids perturbance to the beam and damage to the instrumentation. This thesis is divided into two parts, beam size measurement by optical diffraction radiation and Laser system for Compton polarimeter. Diffraction radiation, produced by the interaction between the electric field of charged particles and the target, is related to transition radiation. Even though the theory of diffraction radiation has been discussed since 1960s, there are only a few experimental studies in recent years. The successful beam size measurement by optical diffraction radiation at CEBAF machine is a milestone: First of all, we have successfully demonstrated diffraction radiation as an effective nonintercepting diagnostics; Secondly, the simple linear relationship between the diffraction radiation image size and the actual beam size improves the reliability of ODR measurements; And, we measured the polarized components of diffraction radiation for the first time and I analyzed the contribution from edge radiation to diffraction radiation.

  11. Coordinating Agile Systems through the Model-based Execution of Temporal Plans

    E-Print Network [OSTI]

    Leaute, Thomas

    2006-04-28T23:59:59.000Z

    Agile autonomous systems are emerging, such as unmanned aerial vehicles (UAVs), that must robustly perform tightly coordinated time-critical missions; for example, military surveillance or search-and-rescue scenarios. In ...

  12. Coordinating agile systems through the model-based execution of temporal plans

    E-Print Network [OSTI]

    Léauté, Thomas

    2005-01-01T23:59:59.000Z

    Agile autonomous systems are emerging, such as unmanned aerial vehicles (UAVs), that must robustly perform tightly coordinated time-critical missions; for example, military surveillance or search-and-rescue scenarios. In ...

  13. Measuring barometric pressure with a manifold pressure sensor in a microprocessor based engine control system

    SciTech Connect (OSTI)

    Pauwels, M.A.; Wright, D.O.

    1986-07-15T23:59:59.000Z

    A microprocessor based electronic engine control system is described for an internal combustion engine, a method for updating the stored ambient pressure signal by measuring the ambient barometric pressure during engine operation using a manifold pressure sensor. The method consists of: generating timing signals indicating the rotational position of an engine member and including a signal indicating a predetermined rotational position in the rotation of the engine member; generating a pressure signal from the manifold pressure sensor representing the pressure surrounding the sensor in response to the predetermined rotational position; reading the value of ambient barometric pressure stored in the memory of the microprocessor; comparing the value of the barometric pressure stored in the memory of the microprocessor and the value of the pressure signal; increasing the value of the barometric pressure by one unit to generate a new barometric pressure value when the value of the pressure signal is greater than the value of the barometric pressure; comparing the new barometric pressure value with a predetermined fixed constant representing the maximum barometric pressure; and storing in the memory of the microprocessor either the new barometric pressure value if equal to or less than the fixed constant or the value of the maximum barometric pressure if the new barometric pressure value is greater than the fixed constant.

  14. Measurement of HVAC system performance and local ventilation using passive perfluorocarbon tracer technology

    SciTech Connect (OSTI)

    Dietz, R.N.; Goodrich, R.W.

    1995-06-01T23:59:59.000Z

    In April of 1993, two (2) perfluorocarbon tracer (PFT) ventilation/indoor air quality assessment tests were performed in the Gleeson Hall building of the SUNY Farmingdale campus. The building was being modified, in part, as a result of significant occupant complaints of perceived poor air quality. The four story building had a basement first floor with air supplied normally by an HVAC system labelled as AC1. During this study, AC1 was inoperational and the basement interior rooms (walls) were primarily gone; the other three floors were still being used for classes. It is possible that a sense of poor air quality may have been perceived by first-floor occupants because they were working in the basement, but this issue could not be addressed. The second floor had two (2) lecture halls--Rm 202 (handled by AC4) and Rm 204 (handled by AC5); the balance of the second floor interior rooms and corridors was split between two other air handling systems, AC2 for the west side of the building and AC3 for the east side. The remaining 3rd and 4th floors were also split about evenly between AC2 and AC3. The perimeter rooms, equipped with wall units having their own outside air (OA) source plus centralized return air (RA) bypasses, were not included in this testing which was restricted to the basement floor (1st floor) and the four operating air handling systems, AC2 to AC5, during Test 1 and only AC2 to AC5 during Test 2. Two types of tests were performed using the full suite of 5 PFT types available. The first test was designed to measure the infiltration, exfiltration, and air exchange between the 5 AC zones above and the second test used the 5th tracer, which had been in the basement, as a distributed source throughout the four other zones to act as a surrogate pollutant source. This report provides final conclusions of both tests and suggestions regarding its usefulness in similar building ventilation and indoor air quality assessments.

  15. Design of a non-contact vibration measurement and analysis system for electronic board testing

    E-Print Network [OSTI]

    Arn, Krissa Elizabeth, 1980-

    2004-01-01T23:59:59.000Z

    Traditional vibration measurement methods involve placing accelerometers at discrete locations on a test object. In cases where the test specimen is small in mass, the addition of these measurement transducers can alter ...

  16. Improved measurement placement and topology processing in power system state estimation

    E-Print Network [OSTI]

    Wu, Yang

    2009-06-02T23:59:59.000Z

    and the branch power flow measurements. The advanced level design keeps the network observable under certain contingencies. To preserve as many substation measurements as possible and maintain the net-work observability, an advanced network topology processor...

  17. Measurements for 2.4 GHz Spread Spectrum System in Modern Office Buildings

    E-Print Network [OSTI]

    Vouyioukas, Demosthenes

    ) National Technical Universityof Athens Department of Electrical and Computer Engineering Mobile penetration within buildings. This paper contributes to the modeling of propagation losses and measurement conducted within National Technical University premises in Athens, Greece. The purpose of the measurement

  18. Steel characteristics measurement system using Barkhausen jump sum rate and magnetic field intensity and method of using same

    DOE Patents [OSTI]

    Kohn, Gabriel (Omer, IL); Hicho, George (Derwood, MD); Swartzendruber, Lydon (New Carrollton, MD)

    1997-01-01T23:59:59.000Z

    A steel hardness measurement system and method of using same are provided for measuring at least one mechanical or magnetic characteristic of a ferromagnetic sample as a function of at least one magnetic characteristic of the sample. A magnetic field generator subjects the sample to a variable external magnetic field. The magnetic field intensity of the magnetic field generated by the magnetic field generating means is measured and a signal sensor is provided for measuring Barkhausen signals from the sample when the sample is subjected to the external magnetic field. A signal processing unit calculates a jump sum rate first moment as a function of the Barkhausen signals measured by the signal sensor and the magnetic field intensity, and for determining the at least one mechanical or magnetic characteristic as a function of the jump sum rate first moment.

  19. Steel characteristics measurement system using Barkhausen jump sum rate and magnetic field intensity and method of using same

    DOE Patents [OSTI]

    Kohn, G.; Hicho, G.; Swartzendruber, L.

    1997-04-08T23:59:59.000Z

    A steel hardness measurement system and method of using same are provided for measuring at least one mechanical or magnetic characteristic of a ferromagnetic sample as a function of at least one magnetic characteristic of the sample. A magnetic field generator subjects the sample to a variable external magnetic field. The magnetic field intensity of the magnetic field generated by the magnetic field generating means is measured and a signal sensor is provided for measuring Barkhausen signals from the sample when the sample is subjected to the external magnetic field. A signal processing unit calculates a jump sum rate first moment as a function of the Barkhausen signals measured by the signal sensor and the magnetic field intensity, and for determining the at least one mechanical or magnetic characteristic as a function of the jump sum rate first moment. 7 figs.

  20. ProjectIT-Time: Integrated Management, Evaluation and Measurement of Information Systems Projects

    E-Print Network [OSTI]

    da Silva, Alberto Rodrigues

    's business needs, developers employ some methods to direct the system's development life cycle, designed

  1. Unmanned Aerial Vehicle (UAV) Dynamic-Tracking Directional Wireless Antennas for Low Powered Applications that Require Reliable Extended Range Operations in Time Critical Scenarios

    SciTech Connect (OSTI)

    Scott G. Bauer; Matthew O. Anderson; James R. Hanneman

    2005-10-01T23:59:59.000Z

    The proven value of DOD Unmanned Aerial Vehicles (UAVs) will ultimately transition to National and Homeland Security missions that require real-time aerial surveillance, situation awareness, force protection, and sensor placement. Public services first responders who routinely risk personal safety to assess and report a situation for emergency actions will likely be the first to benefit from these new unmanned technologies. ‘Packable’ or ‘Portable’ small class UAVs will be particularly useful to the first responder. They require the least amount of training, no fixed infrastructure, and are capable of being launched and recovered from the point of emergency. All UAVs require wireless communication technologies for real- time applications. Typically on a small UAV, a low bandwidth telemetry link is required for command and control (C2), and systems health monitoring. If the UAV is equipped with a real-time Electro-Optical or Infrared (EO/Ir) video camera payload, a dedicated high bandwidth analog/digital link is usually required for reliable high-resolution imagery. In most cases, both the wireless telemetry and real-time video links will be integrated into the UAV with unity gain omni-directional antennas. With limited on-board power and payload capacity, a small UAV will be limited with the amount of radio-frequency (RF) energy it transmits to the users. Therefore, ‘packable’ and ‘portable’ UAVs will have limited useful operational ranges for first responders. This paper will discuss the limitations of small UAV wireless communications. The discussion will present an approach of utilizing a dynamic ground based real-time tracking high gain directional antenna to provide extend range stand-off operation, potential RF channel reuse, and assured telemetry and data communications from low-powered UAV deployed wireless assets.

  2. Insights from a benchmark integrated system validation of a modernized NPP control room: Performance measurement and the comparison to the benchmark system

    SciTech Connect (OSTI)

    Braarud, P. Oe.; Skraaning Jr, G. [OECD Halden Reactor Project, PO Box 173, NO-1751 Halden (Norway)

    2006-07-01T23:59:59.000Z

    The technical basis for performing Integrated System Validation (ISV) of new or modernized NPP control rooms needs further development. Most of the basis for conducting benchmark testing can be found in the review guideline NUREG/CR-6393. The experiences from a benchmark ISV of a modernized control room led to the identification of several unsolved practical and methodological issues. This paper discusses two such issues, i.e. the construction of usable performance measurement batteries, and how one should identify noteworthy performance differences between the modernized system and the benchmark system. (authors)

  3. Control-free control: manipulating a quantum system using only a limited set of measurements

    E-Print Network [OSTI]

    S. Ashhab; Franco Nori

    2010-12-07T23:59:59.000Z

    We present and discuss different protocols for preparing an arbitrary quantum state of a qubit using only a restricted set of measurements, with no unitary operations at all. We show that an arbitrary state can indeed be prepared, provided that the available measurements satisfy certain requirements. Our results shed light on the role that measurement-induced back-action plays in quantum feedback control and the extent to which this back-action can be exploited in quantum-control protocols.

  4. Convex-roof extended negativity as an entanglement measure for bipartite quantum systems

    E-Print Network [OSTI]

    Soojoon Lee; Dong Pyo Chi; Sung Dahm Oh; Jaewan Kim

    2003-10-04T23:59:59.000Z

    We extend the concept of the negativity, a good measure of entanglement for bipartite pure states, to mixed states by means of the convex-roof extension. We show that the measure does not increase under local quantum operations and classical communication, and derive explicit formulae for the entanglement measure of isotropic states and Werner states, applying the formalism presented by Vollbrecht and Werner [Phys. Rev. A {\\bf 64}, 062307 (2001)].

  5. FLEXIBILITY IN WATER RESOURCES MANAGEMENT: REVIEW OF CONCEPTS AND DEVELOPMENT OF ASSESSMENT MEASURES FOR FLOOD MANAGEMENT SYSTEMS1

    E-Print Network [OSTI]

    Tullos, Desiree

    FLEXIBILITY IN WATER RESOURCES MANAGEMENT: REVIEW OF CONCEPTS AND DEVELOPMENT OF ASSESSMENT variability/change; risk assessment; flood management; water resources flexibility.) DiFrancesco, Kara N of Assessment Measures for Flood Management Systems. Journal of the American Water Resources Association (JAWRA

  6. Development of a measuring system for parking position Can wireless charging of electric vehicles deliver its full

    E-Print Network [OSTI]

    Zhao, Yuxiao

    of our projects aims to obtain a better understanding of wireless charging of electric vehicles regarding connection of electric vehicles to the grid. In order for wireless charging to be successful1 Development of a measuring system for parking position ­ Can wireless charging of electric

  7. IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 7, NO. 2, MARCH 1999 271 Sliding Mode Measurement Feedback Control

    E-Print Network [OSTI]

    Kachroo, Pushkin

    Measurement Feedback Control for Antilock Braking Systems Cem ¨Unsal, Member, IEEE, and Pushkin Kachroo, R. Takahashi. This material is based upon work supported by VDOT and Virginia Tech's Center of vehicle motion and stability by providing anti-skid braking and anti- spin acceleration. The design

  8. Development of a measurement system able to determine the ow velocity eld on models of hydraulic turbines

    E-Print Network [OSTI]

    Diggavi, Suhas

    . Antoine Bombenger Probing strategy in a Kaplan Turbine Such a probe typically has a spherical head with 5 turbines Christian Landry Motivations & Objectives The project was driven by the need to improve the measurement of velocity elds and pressures in a hydraulic turbine. The development of a new probing system

  9. DRAFT Measurement Science for Complex Information Systems http://www.nist.gov/itl/antd/emergent_behavior.cfm

    E-Print Network [OSTI]

    DRAFT Measurement Science for Complex Information Systems http://www.nist.gov, "Cisco routers caused major outage in Japan", Network World, May 16, 2007. [8] J. Cowie, "China's 18-Minute Mystery" Renesys Blog, November 18, 2010. http://www.renesys.com/blog/2010/11/chinas-18-minute

  10. High Temperture Ceramic Fuel Cell Measurement and Diagnostics for Application to Solid Oxide Fuel Cell Systems

    SciTech Connect (OSTI)

    Koehler, Theresa M.; Jarrell, Donald B.; Bond, Leonard J.

    2001-10-29T23:59:59.000Z

    This paper is the result of an extensive literature review and technology evaluation, performed to determine the status of sensors and measurement technologies.

  11. Nanotechnology Nanotechnology comprises measurement, design, modeling and fabrication of materials and systems at the atomic scale.

    E-Print Network [OSTI]

    Glowinski, Roland

    Nanotechnology Nanotechnology comprises measurement, design, modeling and fabrication of materials are able to customize their education by specializing in areas such as nanotechnology, computational

  12. EVALUATION OF EFFICACY AND HUMAN HEALTH RISK OF AERIAL ULTRA-LOW VOLUME APPLICATIONS OF PYRETHRINS AND

    E-Print Network [OSTI]

    Peterson, Robert K. D.

    EVALUATION OF EFFICACY AND HUMAN HEALTH RISK OF AERIAL ULTRA-LOW VOLUME APPLICATIONS OF PYRETHRINS). A human health risk assessment conducted by Peterson et al. (2006) for truck-mounted ultra-low volume (ULV to epidemic levels and dispersed to all 58 counties in the state, and was associated with low

  13. 2.5D Dual Contouring: A Robust Approach to Creating Building Models from Aerial LiDAR

    E-Print Network [OSTI]

    Southern California, University of

    thank Tao Ju, Suya You, and anonymous reviewers for their valuable comments. #12;2 Qian-Yi Zhou, Ulrich Neumann Fig. 2. Manually created models [3] show the 2.5D nature of building structures. The aerial Li few points on building walls connecting roof boundaries. In addition, manually created building models

  14. Quantitative blood flow measurements in the small animal cardiopulmonary system using digital subtraction angiography

    SciTech Connect (OSTI)

    Lin Mingde; Marshall, Craig T.; Qi, Yi; Johnston, Samuel M.; Badea, Cristian T.; Piantadosi, Claude A.; Johnson, G. Allan [Department of Radiology, Center for In Vivo Microscopy and Department of Biomedical Engineering, Duke University Medical Center, Box 3302, Durham, North Carolina 27710 (United States); Division of Pulmonary and Critical Care Medicine and Center for Hyperbaric Medicine and Environmental Physiology, Duke University Medical Center, Box 3823, Durham, North Carolina 27710 (United States); Department of Radiology, Center for In Vivo Microscopy, Duke University Medical Center, Box 3302, Durham, North Carolina 27710 (United States); Department of Radiology, Center for In Vivo Microscopy and Department of Biomedical Engineering, Duke University Medical Center, Box 3302, Durham, North Carolina 27710 (United States); Department of Radiology, Center for In Vivo Microscopy, Duke University Medical Center, Box 3302, Durham, North Carolina 27710 (United States); Division of Pulmonary and Critical Care Medicine and Center for Hyperbaric Medicine and Environmental Physiology, Duke University Medical Center, Box 3823, Durham, North Carolina 27710 (United States); Department of Radiology, Center for In Vivo Microscopy and Department of Biomedical Engineering, Duke University Medical Center, Box 3302, Durham, North Carolina 27710 (United States)

    2009-11-15T23:59:59.000Z

    Purpose: The use of preclinical rodent models of disease continues to grow because these models help elucidate pathogenic mechanisms and provide robust test beds for drug development. Among the major anatomic and physiologic indicators of disease progression and genetic or drug modification of responses are measurements of blood vessel caliber and flow. Moreover, cardiopulmonary blood flow is a critical indicator of gas exchange. Current methods of measuring cardiopulmonary blood flow suffer from some or all of the following limitations--they produce relative values, are limited to global measurements, do not provide vasculature visualization, are not able to measure acute changes, are invasive, or require euthanasia. Methods: In this study, high-spatial and high-temporal resolution x-ray digital subtraction angiography (DSA) was used to obtain vasculature visualization, quantitative blood flow in absolute metrics (ml/min instead of arbitrary units or velocity), and relative blood volume dynamics from discrete regions of interest on a pixel-by-pixel basis (100x100 {mu}m{sup 2}). Results: A series of calibrations linked the DSA flow measurements to standard physiological measurement using thermodilution and Fick's method for cardiac output (CO), which in eight anesthetized Fischer-344 rats was found to be 37.0{+-}5.1 ml/min. Phantom experiments were conducted to calibrate the radiographic density to vessel thickness, allowing a link of DSA cardiac output measurements to cardiopulmonary blood flow measurements in discrete regions of interest. The scaling factor linking relative DSA cardiac output measurements to the Fick's absolute measurements was found to be 18.90xCO{sub DSA}=CO{sub Fick}. Conclusions: This calibrated DSA approach allows repeated simultaneous visualization of vasculature and measurement of blood flow dynamics on a regional level in the living rat.

  15. Mission Specialist Human-Robot Interaction in Micro Unmanned Aerial Systems

    E-Print Network [OSTI]

    Peschel, Joshua Michael

    2012-10-19T23:59:59.000Z

    that a human Pilot role is necessary for assistance and understanding, and that there are hidden dependencies in the human-robot team that affect Mission Specialist performance....

  16. Thamm, Ludwig & Reuter Process Model for Unmanned Aerial Systems (UAS) Proceedings of the 10th

    E-Print Network [OSTI]

    on the availability of electrical power, water, gas and communication infrastructures. In central Europe under normal

  17. Design and characterization of Hover Nano Aerial Vehicle (HNAV) propulsion system

    E-Print Network [OSTI]

    Sato, Sho, Ph. D. Massachusetts Institute of Technology

    2008-01-01T23:59:59.000Z

    On October 4th 2005, DARPA released a request for proposals for a Nano-Air Vehicle (NAV) program. The program sought to develop an advanced urban reconnaissance vehicle. According the requirement imposed by DARPA, the NAV ...

  18. 1 http://www.mycopter.eu Enabling Technologies for Personal Aerial Transportation Systems

    E-Print Network [OSTI]

    vehicles (PAVs). The myCopter project focuses on three research areas: social acceptance, automation to public acceptance of a PATS. Automation technologies for PAVs We consider vehicle automation. Automation technologies can enhance the stability of vehicle response such that laypersons can fly PAVs

  19. System design of an unmanned aerial vehicle (UAV) for marine environmental sensing

    E-Print Network [OSTI]

    Leighton, Joshua (Joshua C.)

    2013-01-01T23:59:59.000Z

    Technological improvements over the past decade have led to the widespread use of autonomous surface and underwater vehicles for data collection in marine environmental sensing and modeling in coastal environments. However, ...

  20. Optimized routing of unmanned aerial systems to address informational gaps in counterinsurgency

    E-Print Network [OSTI]

    Lee, Andrew C. (Andrew Choong hon)

    2012-01-01T23:59:59.000Z

    Recent military conflicts reveal that the ability to assess and improve the health of a society contributes more to a successful counterinsurgency (COIN) than direct military engagement. In COIN, a military commander ...

  1. Safety considerations for operation of different classes of unmanned aerial vehicles in the National Airspace System

    E-Print Network [OSTI]

    Weibel, Roland E. (Roland Everett)

    2005-01-01T23:59:59.000Z

    There is currently a broad effort underway in the United States and internationally by several organizations to craft regulations enabling the safe operation of UAVs in the NAS. Current federal regulations governing unmanned ...

  2. Safety Considerations for Operation of Unmanned Aerial Vehicles in the National Airspace System

    E-Print Network [OSTI]

    Weibel, Roland E

    2006-11-21T23:59:59.000Z

    There is currently a broad effort underway in the United States and internationally by several organizations to craft regulations enabling the safe operation of UAVs in the NAS. Current federal regulations governing unmanned ...

  3. Autonomous aerial refueling of UAVS utilizing a vision based navigation system

    E-Print Network [OSTI]

    Kimmett, Jennifer Jones

    2002-01-01T23:59:59.000Z

    the line of sight vector between a positioning sensing diode and a target configured with multiple light emitting diode beacons. A study is conducted to determine the best number and placement of the beacons on the drogue and the best location to mount...

  4. In Situ CO, Oxygen, and Opacity Measurement for Optimizing Combustion Control System Performance

    E-Print Network [OSTI]

    Molloy, R. C.

    1982-01-01T23:59:59.000Z

    The performance of a combustion control system is limited by the accuracy and reliability of the feedback provided by the stack emission flue gas monitoring system which is utilized to analyze the composition of the products of combustion. A...

  5. A Micro-Computer-Based Fuel Optimization System Utilizing In-Situ Measurement of Carbon Monoxide

    E-Print Network [OSTI]

    DeVivo, D. G.

    1980-01-01T23:59:59.000Z

    A microcomputer-based control system utilizing a distributed intelligence architecture has been developed to control combustion in hydrocarbon fuel-fired boilers and heaters to significantly reduce fuel usage. The system incorporates a unique flue...

  6. Microprocessor Based Combustion Monitoring and Control Systems Utilizing in Situ Opacity, Oxygen and CO Measurement 

    E-Print Network [OSTI]

    Molloy, R. C.

    1981-01-01T23:59:59.000Z

    be optimized under widely varying operating conditions. OXYGEN TRIM SYSTEMS A typical boiler control system consists of a steam pressure transducer, which senses load demand, and a fuel flow controller, which increases or decreases fuel flow as a function...

  7. Optimization of Geoscience Laser Altimeter System waveform metrics to support vegetation measurements

    E-Print Network [OSTI]

    Lefsky, Michael

    Optimization of Geoscience Laser Altimeter System waveform metrics to support vegetation GLAS Optimization Remote sensing Vegetation structure The Geoscience Laser Altimeter System (GLAS) has optimized a noise coefficient which could be constant or vary according to observation period or noise

  8. Measuring journey time reliability in London using automated data collection systems

    E-Print Network [OSTI]

    Schil, Mickaël (Mickaël René Jerôme)

    2012-01-01T23:59:59.000Z

    Service reliability is critical for both users and operators of transit systems. The rapid spread of Automated Data Collection Systems, such as Automated Fare Collection (AFC) and Automatic Vehicle Location (AVL), provides ...

  9. On formation of the asymptotic spectrum of delayed neutron emitters in measuring the VVER-1000 scram system effectiveness

    SciTech Connect (OSTI)

    Shishkov, L. K., E-mail: slk@vver.kiae.ru; Zizin, M. N., E-mail: zizin_m@mail.ru [National Research Center Kurchatov Institute (Russian Federation)

    2014-12-15T23:59:59.000Z

    The process of formation of an asymptotic distribution of the neutron flux density in the reactor systems after introducing different negative reactivities is considered. The impact of two factors after the reactivity introduction is evaluated: (1) nonuniformity of perturbation of core properties, on one hand, and (2) a sharp reduction in the density of prompt neutrons, which prevents the appearance of new delayed neutron emitters distributed in accordance with the “new” prompt neutron distribution, on the other hand. The results of calculations show that the errors of measuring the scram system effectiveness using the method of inverse solution of the kinetics equation are caused by the fact that, after the negative reactivity insertion, the sources of prompt and delayed neutrons have different spatial distributions. In the case of high negative reactivities, this difference remains while the system still has neutrons, which can be measured.

  10. UNDERSTANDING METHANE EMISSIONS SOURCES AND VIABLE MITIGATION MEASURES IN THE NATURAL GAS TRANSMISSION SYSTEMS: RUSSIAN AND U.S. EXPERIENCE

    SciTech Connect (OSTI)

    Ishkov, A.; Akopova, Gretta; Evans, Meredydd; Yulkin, Grigory; Roshchanka, Volha; Waltzer, Suzie; Romanov, K.; Picard, David; Stepanenko, O.; Neretin, D.

    2011-10-01T23:59:59.000Z

    This article will compare the natural gas transmission systems in the U.S. and Russia and review experience with methane mitigation technologies in the two countries. Russia and the United States (U.S.) are the world's largest consumers and producers of natural gas, and consequently, have some of the largest natural gas infrastructure. This paper compares the natural gas transmission systems in Russia and the U.S., their methane emissions and experiences in implementing methane mitigation technologies. Given the scale of the two systems, many international oil and natural gas companies have expressed interest in better understanding the methane emission volumes and trends as well as the methane mitigation options. This paper compares the two transmission systems and documents experiences in Russia and the U.S. in implementing technologies and programs for methane mitigation. The systems are inherently different. For instance, while the U.S. natural gas transmission system is represented by many companies, which operate pipelines with various characteristics, in Russia predominately one company, Gazprom, operates the gas transmission system. However, companies in both countries found that reducing methane emissions can be feasible and profitable. Examples of technologies in use include replacing wet seals with dry seals, implementing Directed Inspection and Maintenance (DI&M) programs, performing pipeline pump-down, applying composite wrap for non-leaking pipeline defects and installing low-bleed pneumatics. The research methodology for this paper involved a review of information on methane emissions trends and mitigation measures, analytical and statistical data collection; accumulation and analysis of operational data on compressor seals and other emission sources; and analysis of technologies used in both countries to mitigate methane emissions in the transmission sector. Operators of natural gas transmission systems have many options to reduce natural gas losses. Depending on the value of gas, simple, low-cost measures, such as adjusting leaking equipment components, or larger-scale measures, such as installing dry seals on compressors, can be applied.

  11. Reduced Measurement-space Dynamic State Estimation (ReMeDySE) for Power Systems

    SciTech Connect (OSTI)

    Zhang, Jinghe; Welch, Greg; Bishop, Gary; Huang, Zhenyu

    2011-06-19T23:59:59.000Z

    Abstract- Applying Kalman filtering techniques to dynamic state estimation is a developing research area in modern power systems.

  12. Systems and Methods for Integrated Emissivity and Temperature Measurement of a Surface

    DOE Patents [OSTI]

    Poulsen, Peter

    2005-11-08T23:59:59.000Z

    A multi-channel spectrometer and a light source are used to measure both the emitted and the reflected light from a surface which is at an elevated temperature relative to its environment. In a first method, the temperature of the surface and emissivity in each wavelength is calculated from a knowledge of the spectrum and the measurement of the incident and reflected light. In the second method, the reflected light is measured from a reference surface having a known reflectivity and the same geometry as the surface of interest and the emitted and the reflected light are measured for the surface of interest. These measurements permit the computation of the emissivity in each channel of the spectrometer and the temperature of the surface of interest.

  13. Analytical models to evaluate system performance measures for vehicle based material-handling systems under various dispatching policies

    E-Print Network [OSTI]

    Lee, Moonsu

    2005-08-29T23:59:59.000Z

    -route material-handling systems from two different perspectives: the workcenters?? point of view and the transporters?? point of view. The state-dependent nature of the transportation time is considered here for more accurate analytical approximation models...

  14. MOBILE HIGHWAY INVENTORY AND MEASUREMENT SYSTEM Norbert H. Maerz, University of Missouri-Rolla, 1006 Kingshighway, Rolla MO, 65409-0660, USA. Tel

    E-Print Network [OSTI]

    Maerz, Norbert H.

    Surveyor® : MOBILE HIGHWAY INVENTORY AND MEASUREMENT SYSTEM Norbert H. Maerz, University classified inventories annotated with object dimensions, object position relative to the road, and global collection, Highway measurements, Instrumented vehicle, Highway inventory management, Infrastructure

  15. Overview of existing residential energy-efficiency rating systems and measuring tools

    SciTech Connect (OSTI)

    Hendrickson, P.L.; Garrett-Price, B.A.; Williams, T.A.

    1982-10-01T23:59:59.000Z

    Three categories of rating systems/tools were identified: prescriptive, calculational, and performance. Prescriptive systems include rating systems that assign points to various conservation features. Most systems that have been implemented to date have been prescriptive systems. The vast majority of these are investor-owned utility programs affiliated with the National Energy Watch program of the Edison Electric Institute. The calculational category includes computational tools that can be used to estimate energy consumption. This estimate could then be transformed, probably by indexing, into a rating. The available computational tools range from very simple to complex tools requiring use of a main-frame computer. Performance systems refer to residential energy-efficiency ratings that are based on past fuel consumption of a home. There are few of these systems. For each identified system/tool, the name, address, and telephone number of the developer is included. In addition, relevant publications discussing the system/tool are cited. The extent of field validation/verification of individual systems and tools is discussed. In general, there has been little validation/verification done. A bibliography of literature relevant to the use and implementation of a home energy rating system is also included.

  16. Harmonic propagation on an electric distribution system: Field measurements compared with computer simulation

    SciTech Connect (OSTI)

    Williams, S.M. (Naval Postgraduate School, Monterey, CA (United States)); Brownfield, G.T. (Union Electric Co., St. Louis, MO (United States)); Duffus, J.W. (Univ. of Missouri, Columbia, MO (United States). Power Electronics Research Center)

    1993-04-01T23:59:59.000Z

    Power electronic loads are occupying an increasing fraction of the total load on distribution feeders. Coincidentally, there is a greater use of power factor correction capacitors on the distribution system. These two factors can present poor operating conditions in the form of high harmonic levels propagating through a distribution system. Electric utility engineers are facing an ever increasing number of situations which require the analysis of the propagation of harmonics on a distribution system. HARMFLO was developed by EPRI for use in the analysis of harmonics on a power system. However, for a typical analysis of a distribution system, data for some of the parameters required by HARMFLO are not available. Furthermore, exact load information is usually not available. Harmonic levels determined from field tests on a distribution system are compared to results of HARMFLO simulations to determine if this analysis tool can be expected to provide useful results despite the lack of exact information for load modeling and other system parameters.

  17. Statistical techniques applied to aerial radiometric surveys (STAARS): principal components analysis user's manual. [NURE program

    SciTech Connect (OSTI)

    Koch, C.D.; Pirkle, F.L.; Schmidt, J.S.

    1981-01-01T23:59:59.000Z

    A Principal Components Analysis (PCA) has been written to aid in the interpretation of multivariate aerial radiometric data collected by the US Department of Energy (DOE) under the National Uranium Resource Evaluation (NURE) program. The variations exhibited by these data have been reduced and classified into a number of linear combinations by using the PCA program. The PCA program then generates histograms and outlier maps of the individual variates. Black and white plots can be made on a Calcomp plotter by the application of follow-up programs. All programs referred to in this guide were written for a DEC-10. From this analysis a geologist may begin to interpret the data structure. Insight into geological processes underlying the data may be obtained.

  18. Atmospheric Radiation Measurement (ARM) Data from Manacapuru, Brazil for the Green Ocean Amazon (GOAMAZON) Field Campaign

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

    The Amazon rain forest in Brazil is the largest broadleaf forest in the world, covering 7 million square kilometers of the Amazon Basin in South America. It represents over half of the planet’s remaining rain forests, and comprises the most biodiverse tract of tropical rain forest on the planet. Due to the sheer size of the Amazon rain forest, the area has a strong impact on the climate in the Southern Hemisphere. To understand the intricacies of the natural state of the Amazon rain forest, the Green Ocean Amazon, or GOAMAZON, field campaign is a two-year scientific collaboration among U.S. and Brazilian research organizations. They are conducting a variety of different experiments with dozens of measurement tools, using both ground and aerial instrumentation, including the ARM Aerial Facility's G-1 aircraft. For more information on the holistic view of the campaign, see the Department of Energy’s GOAMAZON website. As a critical component of GOAMAZON, the ARM Mobile Facility (AMF) will obtain measurements near Manacapuru, south of Manaus, Brazil, from January to December 2014. The city of Manaus, with a population of 3 million, uses high-sulfur oil as their primary source of electricity. The AMF site is situated to measure the atmospheric extremes of a pristine atmosphere and the nearby cities’ pollution plume, as it regularly intersects with the site. Along with other instrument systems located at the Manacapuru site, this deployment will enable scientists to study how aerosol and cloud life cycles are influenced by pollutant outflow from a tropical megacity.

  19. Measure it, See it, Manage it: Using Real Time Data to Benchmark,Optimize, and Sustain System Energy Efficiency

    SciTech Connect (OSTI)

    Taranto, Thomas; McKane, Aimee; Amon, Ricardo; Maulhardt, Michael

    2007-07-02T23:59:59.000Z

    Even after years of training and awareness building at thestate and national level, industrial cross-cutting systems (motor-driven,steam, process heating) continue to offer significant opportunities forenergy savings. The US Department of Energy estimates these remainingsavings at more than 7 percent of all industrial energy use. This paperpresents a different approach to promoting industrial system energyefficiency -- providing plant personnel with ready access to data uponwhich to base energy management decisions.In 2005, a Del Monte Foodsfruit processing plant in Modesto, California worked with LawrenceBerkeley National Laboratory (LBNL)to specify and purchase permanentinstrumentation for monitoring their compressed air system. This work,completed as part of a demonstration project under a State TechnologiesAdvancement Collaborative (STAC) grant, was designed to demonstrate theeffectiveness of enterprise energy management (EEM), which is predicatedon the assumption that the energy efficiency of existing, cross-cuttingindustrial systems (motor-driven, steam) can be improved by providingmanagement and operating personnel with real-time data on energy use. Theinitial STAC grant provided for the installation and some initialanalyses, but did not address the larger issue of integrating these newdata into an ongoing energy management program for the compressed airsystem.The California Energy Commission (CEC) decided to support furtheranalysis to identify potential for air system optimization. Through theCEC's Energy in Agriculture Program, a compressed air system audit wasperformed by Tom Taranto to: Measure and document the system's baselineand CASE Index of present operation; Establish methods to sustain anongoing CASE Index measure of performance; Use AIRMaster+ to analyzesupply side performance as compared to the CASE Index; Identify demandside opportunities for efficiency and performance improvement; Assesssupply / demand balance and energy reduction opportunities; Evaluate thepresent air compressor control strategy and potential improvement, andCollect data to benchmark parameters for compressed air systems atsimilar facilities.This paper addresses the benefits and limitations ofboth continuous and targeted measurement in benchmarking, optimizing, andsustaining an efficient compressed air system. Included are methods usedin applying both of these measurements to a complex industrial system.Further, this paper will describe the results of these additionalanalyses and the plant response to them.

  20. Towards Designing a Biometric Measure for Enhancing ATM Security in Nigeria E-Banking System

    E-Print Network [OSTI]

    Ibidapo,; Omogbadegun, Zaccheous O; Oyelami, Olufemi M

    2011-01-01T23:59:59.000Z

    Security measures at banks can play a critical, contributory role in preventing attacks on customers. These measures are of paramount importance when considering vulnerabilities and causation in civil litigation. Banks must meet certain standards in order to ensure a safe and secure banking environment for their customers. This paper focuses on vulnerabilities and the increasing wave of criminal activities occurring at Automated Teller Machines (ATMs) where quick cash is the prime target for criminals rather than at banks themselves. A biometric measure as a means of enhancing the security has emerged from the discourse. Keywords-Security, ATM, Biometric, Crime.

  1. A system to measure isomeric state half-lives in the 10 ns to 10 ?s range

    SciTech Connect (OSTI)

    Toufen, D. L., E-mail: dennis@if.usp.br [Institute of Physics, University of São Paulo, C.P. 66318, 05315-970 São Paulo, São Paulo (Brazil); Federal Institute of Education, Science and Technology of São Paulo - IFSP, 07115-000 Guarulhos, São Paulo (Brazil); Allegro, P. R. P.; Medina, N. H.; Oliveira, J. R. B.; Cybulska, E. W.; Seale, W. A.; Ribas, R. V. [Institute of Physics, University of São Paulo, C.P. 66318, 05315-970 São Paulo, São Paulo (Brazil); Linares, R. [Fluminense Federal University, 24220-900 Niterói, Rio de Janeiro (Brazil); Silveira, M. A. G. [Universitary Center of FEI, 09850-901 São Bernardo do Campo, São Paulo (Brazil)

    2014-07-15T23:59:59.000Z

    The Isomeric State Measurement System (SISMEI) was developed to search for isomeric nuclear states produced by fusion-evaporation reactions. The SISMEI consists of 10 plastic phoswich telescopes, two lead shields, one NaI(Tl) scintillation detector, two Compton suppressed HPGe ?-ray detectors, and a cone with a recoil product catcher. The new system was tested at the 8 UD Pelletron tandem accelerator of the University of São Paulo with the measurement of two known isomeric states: {sup 54}Fe, 10{sup +} state (E = 6527.1 (11) keV, T{sub 1/2} = 364(7) ns) and the 5/2{sup +} state of {sup 19}F (E = 197.143 (4) keV, T{sub 1/2} = 89.3 (10) ns). The results indicate that the system is capable of identifying delayed transitions, of measuring isomeric state lifetimes, and of identifying the feeding transitions of the isomeric state through the delayed ?-? coincidence method. The measured half-life for the 10{sup +} state was T{sub 1/2} = 365(14) ns and for the 5/2{sup +} state, 100(36) ns.

  2. A scaler-based data acquisition system for measuring parity-violating asymmetry in deep inelastic scattering

    SciTech Connect (OSTI)

    Subedi, Ramesh R. [Virginia U.; Wang, Diancheng [Virginia U.; Pan, Kai [MIT; Deng, Xiaoyan [Virginu U.; Michaels, Robert W. [JLAB; Shahinyan, Albert [Yerevan Institute; Wojtsekhowski, Bogdan B. [JLAB; Zheng, Xiaochao [JLAB

    2013-10-01T23:59:59.000Z

    An experiment that measured the parity violating asymmetries in deep inelastic scattering was completed at the Thomas Jefferson National Accelerator Facility in experimental Hall A. From these asymmetries, a combination of the quark weak axial charge could be extracted with a factor of five improvement in precision over world data. To achieve this, asymmetries at the 10^-4 level needed to be measured at event rates up to 500 kHz and the high pion background typical to deep inelastic scattering experiments needed to be rejected efficiently. A specialized data acquisition (DAQ) system with intrinsic particle identification (PID) was successfully developed and used: The pion contamination in the electron samples was controlled at the order of 2 × 10^-4 or below with an electron efficiency of higher than 91% throughout the production period of the experiment, the systematic uncertainty in the measured asymmetry due to DAQ deadtime was below 0.2%, and the statistical quality of the asymmetry measurement agreed with the Gaussian distribution to over five orders of magnitudes. The DAQ system is presented here with an emphasis on its design scheme, the achieved PID performance, deadtime effect and the capability of measuring small asymmetries.

  3. Microprocessor Based Combustion Monitoring and Control Systems Utilizing in Situ Opacity, Oxygen and CO Measurement

    E-Print Network [OSTI]

    Molloy, R. C.

    1981-01-01T23:59:59.000Z

    , self-diagnostics, field programmable memory, and improved operator interface. By measuring the products of combustion utilizing the latest In Situ Opacity, Oxygen, and CO Monitoring technology, the fuel air mixture ratio of industrial fuel burning...

  4. Quantum state measurement using phase-sensitive amplification in a driven three-level atomic system

    E-Print Network [OSTI]

    Ahmad, M.; Qamar, S.; Zubairy, M. Suhail

    2001-01-01T23:59:59.000Z

    for different values of the driving field phases. The inverse Radon transformation is then employed to reconstruct the original quantum state. Our scheme is insensitive to the problems associated with nonunit detector efficiency in homodyne detection measurement....

  5. A language measure for performance evaluation of discrete-event supervisory control systems q

    E-Print Network [OSTI]

    Ray, Asok

    on permissiveness as the (qualitative) performance index. Construction of the proposed language measure follows similar to the conditional probability, each event is assigned a cost based on the state at which

  6. A DSP based real time power quality measurement system with voltage distortion improvement capability 

    E-Print Network [OSTI]

    Gou, Jian

    1992-01-01T23:59:59.000Z

    have been established to specify the limitation on the magnitudes of both harmonic currents and harmonic voltage distortion at different frequencies. Among these the "IEEE Guide for Harmonic Control and Reactive Compensation of Static Power... by the utility and by the electricity consumer has arrived. These measurements include: current and voltage harmonics, input power 1'actor, reactive power, real power, total harmonic distortion (THD), percentage load unbalance, etc. The measured data can...

  7. Measure Guideline: Steam System Balancing and Tuning for Multifamily Residential Buildings

    SciTech Connect (OSTI)

    Choi, J.; Ludwig, P.; Brand, L.

    2013-04-01T23:59:59.000Z

    This report was written as a resource for professionals involved in multifamily audits, retrofit delivery, and program design, as well as for building owners and contractors. It is intended to serve as a guide for those looking to evaluate and improve the efficiency and operation of one-pipe steam heating systems. In centrally heated multifamily buildings with steam or hydronic systems, the cost of heat for tenants is typically absorbed into the owner's operating costs. Highly variable and rising energy costs have placed a heavy burden on landlords. In the absence of well-designed and relevant efficiency efforts, increased operating costs would be passed on to tenants who often cannot afford those increases. Misinvestment is a common problem with older heating systems -- multiple contractors may inadequately or inappropriately upgrade parts of systems and reduce system functionality and efficiency, or the system has not been properly maintained.

  8. Plasma power measurement and hysteresis in the E-H transition of a rf inductively coupled plasma system

    SciTech Connect (OSTI)

    Daltrini, A. M.; Moshkalev, S. A. [Universidade Estadual de Campinas, Unicamp, Center for Semiconductor Components, P.O. Box 6061, Campinas SP 13083-870 (Brazil); Morgan, T. J. [Department of Physics, Wesleyan University, Middletown, Connecticut 06457 (United States); Piejak, R. B.; Graham, W. G. [Centre for Plasma Physics, Department of Physics and Astronomy, Queen's University Belfast BT 7 1NN, Northern Ireland (United Kingdom)

    2008-02-11T23:59:59.000Z

    An experimental investigation of the argon plasma behavior near the E-H transition in an inductively coupled Gaseous Electronics Conference reference cell is reported. Electron density and temperature, ion density, argon metastable density, and optical emission measurements have been made as function of input power and gas pressure. When plotted versus plasma power, applied power corrected for coil and hardware losses, no hysteresis is observed in the measured plasma parameter dependence at the E-H mode transition. This suggests that hysteresis in the E-H mode transition is due to ignoring inherent power loss, primarily in the matching system.

  9. Moving-Boundary Heat Exchanger Models with Variable Outlet Phase, ASME Journal of Dynamic Systems, Measurement, and Control

    E-Print Network [OSTI]

    Eldredge, B.D; Rasmussen, B.P.; Alleyne, A.

    , MEASUREMENT, AND CON- ROL. Manuscript received June 8, 2006; final manuscript received May 22, 2008; ublished online September 24, 2008. Assoc. Editor: Huei Peng. ournal of Dynamic Systems, Measurement, and Control NOVEMBER 2008, Vol. 130 / 061003-1Brian D.... Eldredge University of Illinois at Urbana-Champaign, 158 MEB, MC-244, 1206 West Green Street, Urbana, IL 61801 e-mail: brian.eldredge@gmail.com Bryan P. Rasmussen Texas A&M University, 3123 TAMU, College Station, TX 77843-3123 e-mail: brasmussen...

  10. Application of the Global Positioning System to the Measurement of Overhead Power Transmission Conductor Sag

    E-Print Network [OSTI]

    , incident solar radiation, limiting physical conductor characteristics, and conductor configuration renewed importance because some companies are marketing transmission access. A widely used system

  11. Modeling and Measurement Constraints in Fault Diagnostics for HVAC Systems Massieh Najafi1

    E-Print Network [OSTI]

    . of Statistics, U. of California Berkeley, bartlett@cs.berkeley.edu 4 Leader, Commercial Building Systems Group of five to fifteen percent are achievable in commercial buildings by detecting and correcting building;1. Introduction A commercial building's various energy systems creep from their original design goals

  12. A novel metric for measuring multiple antennas system capacity over energy consumption

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    such as wireless sensor networks (WSNs) [5] and peer to peer systems (P2P) which could be limited in energy. Nevertheless, it should be men- tioned that even the use of multiple antennas significantly improves system model where a set of NT transmit sensor nodes communicate with NR receive sensor nodes. We

  13. Algorithm for Screening Phasor Measurement Unit Data for Power System Events and Categories and Common Characteristics for Events Seen in Phasor Measurement Unit Relative Phase-Angle Differences and Frequency Signals

    SciTech Connect (OSTI)

    Allen, A.; Santoso, S.; Muljadi, E.

    2013-08-01T23:59:59.000Z

    A network of multiple phasor measurement units (PMU) was created, set up, and maintained at the University of Texas at Austin to obtain actual power system measurements for power system analysis. Power system analysis in this report covers a variety of time ranges, such as short- term analysis for power system disturbances and their effects on power system behavior and long- term power system behavior using modal analysis. The first objective of this report is to screen the PMU data for events. The second objective of the report is to identify and describe common characteristics extracted from power system events as measured by PMUs. The numerical characteristics for each category and how these characteristics are used to create selection rules for the algorithm are also described. Trends in PMU data related to different levels and fluctuations in wind power output are also examined.

  14. U.S. Natural Gas System Methane Emissions: State of Knowledge from LCAs, Inventories, and Atmospheric Measurements (Presentation)

    SciTech Connect (OSTI)

    Heath, G.

    2014-04-01T23:59:59.000Z

    Natural gas (NG) is a potential "bridge fuel" during transition to a decarbonized energy system: It emits less carbon dioxide during combustion than other fossil fuels and can be used in many industries. However, because of the high global warming potential of methane (CH4, the major component of NG), climate benefits from NG use depend on system leakage rates. Some recent estimates of leakage have challenged the benefits of switching from coal to NG, a large near-term greenhouse gas (GHG) reduction opportunity. During this presentation, Garvin will review evidence from multiple perspectives - life cycle assessments (LCAs), inventories and measurements - about NG leakage in the US. Particular attention will be paid to a recent article in Science magazine which reviewed over 20 years of published measurements to better understand what we know about total methane emissions and those from the oil and gas sectors. Scientific and policy implications of the state of knowledge will be discussed.

  15. Optomechanical effects of two-level systems in a back-action evading measurement of micro-mechanical motion

    SciTech Connect (OSTI)

    Suh, J.; Weinstein, A. J.; Schwab, K. C. [Applied Physics, California Institute of Technology, Pasadena, California 91125 (United States)] [Applied Physics, California Institute of Technology, Pasadena, California 91125 (United States)

    2013-07-29T23:59:59.000Z

    We show that the two-level systems (TLS) in lithographic superconducting circuits act as a power-dependent dielectric leading to non-linear responses in a parametrically coupled electromechanical system. Driven TLS shift the microwave resonance frequency and modulate the mechanical resonance through the optical spring effect. By pumping with two tones in a back-action evading measurement, these effects produce a mechanical parametric instability which limits single quadrature imprecision to 1.4 x{sub zp}. The microwave resonator noise is also consistent to a TLS-noise model. These observations suggest design strategies for minimizing TLS effects to improve ground-state cooling and quantum non-demolition measurements of motion.

  16. Double-Pionic Fusion of Nuclear Systems and the ABCEffect -- Aproaching a Puzzle by Exclusive and Kinematically Complete Measurements

    E-Print Network [OSTI]

    M. Bashkanov; C. Bargholtz; M. Berlowski; D. Bogoslawsky; H. Calen; H. Clement; L. Demiroers; E. Doroshkevich; D. Duniec; C. Ekstrom; K. Fransson; L. Geren; L. Gustafsson; B. Hoistad; G. Ivanov; M. Jacewicz; E. Jiganov; T. Johansson; O. Khakimova; S. Keleta; I. Koch; F. Kren; S. Kullander; A. Kupsc; K. Lindberg; P. Marciniewski; R. Meier; B. Morosov; C. Pauly; H. Pettersson; Y. Petukhov; A. Povtorejko; A. Pricking; R. J. M. Y. Ruber; K. Schonning; W. Scobel; B. Shwartz; T. Skorodko; V. Sopov; J. Stepaniak; P. -E. Tegner; P. Thorngren-Engblom; V. Tikhomirov; A. Turowiecki; G. J. Wagner; M. Wolke; J. Zabierowski; I. Zartova; J. Zlomanczuk

    2009-01-07T23:59:59.000Z

    The ABC effect - a puzzling low-mass enhancement in the $\\pi\\pi$ invariant mass spectrum - is well-known from inclusive measurements of two-pion production in nuclear fusion reactions. Here we report on first exclusive and kinematically complete measurements of the most basic double pionic fusion reaction $pn \\to d \\pi^0\\pi^0$ at 1.03 and 1.35 GeV. The measurements, which have been carried out at CELSIUS-WASA, reveal the ABC effect to be a $(\\pi\\pi)_{I=L=0}$ channel phenomenon associated with both a resonance-like energy dependence in the integral cross section and the formation of a $\\Delta\\Delta$ system in the intermediate state. A corresponding simple s-channel resonance ansatz provides a surprisingly good description of the data.

  17. Multichannel microwave interferometer with an antenna switching system for electron density measurement in a laboratory plasma experiment

    SciTech Connect (OSTI)

    Kawamori, Eiichirou; Lin, Yu-Hsiang [Institute of Space and Plasma Sciences, National Cheng Kung University, Tainan 70101, Taiwan (China)] [Institute of Space and Plasma Sciences, National Cheng Kung University, Tainan 70101, Taiwan (China); Mase, Atsushi [Art, Science and Technology Center for Cooperative Research, Kyushu University, Kasuga 816-8580 (Japan)] [Art, Science and Technology Center for Cooperative Research, Kyushu University, Kasuga 816-8580 (Japan); Nishida, Yasushi; Cheng, C. Z. [Institute of Space and Plasma Sciences, National Cheng Kung University, Tainan 70101, Taiwan (China) [Institute of Space and Plasma Sciences, National Cheng Kung University, Tainan 70101, Taiwan (China); Plasma and Space Science Center, National Cheng Kung University, Tainan 70101, Taiwan (China)

    2014-02-15T23:59:59.000Z

    This study presents a simple and powerful technique for multichannel measurements of the density profile in laboratory plasmas by microwave interferometry. This technique uses electromechanical microwave switches to temporally switch the connection between multiple receiver antennas and one phase-detection circuit. Using this method, the phase information detected at different positions is rearranged into a time series that can be acquired from a minimum number of data acquisition channels (e.g., two channels in the case of quadrature detection). Our successfully developed multichannel microwave interferometer that uses the antenna switching method was applied to measure the radial electron density profiles in a magnetized plasma experiment. The advantage of the proposed method is its compactness and scalability to multidimensional measurement systems at low cost.

  18. DEVELOPMENT OF A MUD-PULSE HIGH-TEMPERATURE MEASUREMENT-WHILE-DRILLING (MWD) SYSTEM

    SciTech Connect (OSTI)

    John H. Cohen; Greg Deskins; William Motion; Jay Martin

    2002-01-01T23:59:59.000Z

    The overall program objective is to develop a mud-pulse measurement-while-drilling (MWD) tool for oil and gas drilling operations that can be used where downhole temperatures are as high as 195 C (383 F). The work was planned to be completed in two phases: Phase I and an optional Phase II. The objectives of Phase I were first to identify critical components of existing MWD systems that can or cannot operate at 195 C. For components not able to meet the higher standard, one of several strategies was pursued: (1) locate high-temperature replacement components, (2) develop new designs that eliminate the unavailable components, or (3) use cooling to keep components at acceptable operating temperatures (under 195 C). New designs and components were then tested under high temperatures in the laboratory. The final goal of Phase I was to assemble two high-temperature MWD prototype tools and test each in at least one low-temperature well to verify total system performance. Phase II was also envisioned as part of this development. Its objective would be to test the two new high-temperature MWD prototype tools in wells being drilled in the United States where the bottom-hole temperatures were 195 C (or the highest temperatures attainable). The high-temperature MWD tool is designed to send directional and formation data to the surface via mud pulses, to aid in the drilling of guided wellbores. The modules that comprise the tool are housed in sealed barrels that protect the electronics from exposure to down-hole fluids and pressures. These pressure barrels are hung inside a non-magnetic collar located above the drilling assembly. A number of significant accomplishments were achieved during the course of the Phase I project, including: (1) Tested two MWD strings for function in an oven at 195 C; (2) Conducted field test of prototype 195 C MWD tool (at well temperatures up to 140-180 C); (3) Tested ELCON hybrid chip with processor, clock, and memory in a custom package for 700 hours at 200 C; (4) Contracted with APS Technology to conduct study of thermoelectric cooling of downhole electronics; (5) Conducted successful Peltier cooling test with APS Technology; (6) Tested and improved the electronics of Sperry Sun's Geiger Muller-based gamma detector for operation at 195 C; (7) Developed two high-temperature magnetometers (one in-house, one with Tensor); and (8) Encouraged outside source to develop lithium/magnesium high-temperature batteries (operating temperature of 125 to 215 C). One of this project's greatest achievements was improvement in Sperry Sun's current tool with changes made as a direct result of work performed under this project. These improvements have resulted in longer life and a more robust MWD tool at the previous temperature rating of 175 C, as well as at higher temperatures. A field test of two prototype 195 C MWD tools was conducted in Lavaca County, Texas. The purpose of this operation was to provide directional services on a sidetrack of a straight hole. The sidetrack was to intersect the formation up-dip above the water/gas interface. In addition, the gamma tool provided formation data including seam tops and thickness. Results from these field tests indicate progress in the development of a 195 C tool. Although the pulsers failed downhole in both tools, failure of the pulsers was determined to be from mechanical rather than electrical causes. Analysis of the economics of the 195 C tool highlights the greatest obstacle to future commercialization. Costs to screen individual components, then subassemblies, and finally completed tools for high-temperature operations are very high. Tests to date also show a relatively short life for high-temperature tools--on the order of 300 hours. These factors mean that the daily cost of the tool will be higher (3 to 5 times more) than a conventional tool.

  19. The Radiation Dose Measurement System for the BaBar Electromagnetic Calorimeter

    SciTech Connect (OSTI)

    Khan, A.; /Brunel U.; Meyer, W.T.; /Iowa State U.; Stelzer, J.; /Stanford U., Phys. Dept.; Yi, Jong; /Manchester U.

    2006-08-14T23:59:59.000Z

    An array of 116 p-channel radiation sensitive MOSFET transistors (RadFETs) has been operational for the past 6 years at the BaBar experiment at the PEP-II asymmetric B-Factory at the Stanford Linear Accelerator Center (SLAC). This system maps the integrated dose absorbed by different regions of the Electromagnetic Calorimeter (EMC) during the running of the experiment. We report on the design and implementation of the system and finally, the performance of the monitoring system during the last 6 years of BaBar data-taking.

  20. The Design and Development of a Hybrid RF/Laser Radar System for Measuring Changes in

    E-Print Network [OSTI]

    Kansas, University of

    transmit power and higher PRF. RF pulse compression is used to improve system performance further. Receiver compression. Compared to laser radars like GLAS and MOLA, this sensor requires a lower peak transmit power Compression .......................................................... 14 2.6 Coherent Integration

  1. Propagation models for multiple-antenna systems : methodology, measurements and statistics

    E-Print Network [OSTI]

    Herring, Keith, 1981-

    2008-01-01T23:59:59.000Z

    The trend in wireless communications is towards utilization of multiple antenna systems. While techniques such as beam-forming and spatial diversity have been implemented for some time, the emergence of Multiple-Input ...

  2. Transient oxygen consumption rate measurements with the BDT?M? oxygen biosensor system

    E-Print Network [OSTI]

    Low, Clarke Alan

    2008-01-01T23:59:59.000Z

    Oxygen consumption rate (OCR) is a reliable indicator of tissue health. Recently, the OCR of isolated human islets has been shown to predict transplant outcome in diabetic mice. The Oxygen Biosensor System (OBS) is a ...

  3. Development of a Wireless Real-Time Productivity Measurement System for Rapid Construction Operations

    E-Print Network [OSTI]

    Kim, Seonghoon

    2008-01-01T23:59:59.000Z

    was developed. The WRITE System has a potential to strengthen communication and coordination among participants involved in the infrastructure construction process by providing more accurate productivity information in real time....

  4. Measuring the capacity of a port system : a case study on a Southeast Asian port

    E-Print Network [OSTI]

    Salminen, Jason Bryan

    2013-01-01T23:59:59.000Z

    As economies develop and trade routes change, investment in port infrastructure is essential to maintain the necessary capacity for an efficiently functioning port system and to meet expected demand for all types of cargo. ...

  5. Evaluation and synthesis of methods for measuring system engineering efficacy with a project and organization

    E-Print Network [OSTI]

    Flynn, Timothy Daniel

    2007-01-01T23:59:59.000Z

    The need for robust systems engineering in product development has been understood by those developing product in the aerospace and defense industries since the days of the Atlas ballistic missile program. In recent times ...

  6. Method and apparatus to measure vapor pressure in a flow system

    DOE Patents [OSTI]

    Grossman, Mark W. (Belmont, MA); Biblarz, Oscar (Swampscott, MA)

    1991-01-01T23:59:59.000Z

    The present invention is directed to a method for determining, by a condensation method, the vapor pressure of a material with a known vapor pressure versus temperature characteristic, in a flow system particularly in a mercury isotope enrichment process.

  7. "Optimization of Zero Length Chromatographic System and Measuring Properties of Model Compounds from Biomass Pyrolysis"

    E-Print Network [OSTI]

    Mountziaris, T. J.

    Compounds from Biomass Pyrolysis" Ross Kendall Faculty Mentor: Dr. Paul Dauenhauer, Chemical Engineering by using what he made to measure many of the compounds involved in biomass pyrolysis. If we can understand to retrieve diffusion coefficients of many intermediates of the biomass pyrolysis reaction. From this data

  8. Method and system for measuring gate valve clearances and seating force

    DOE Patents [OSTI]

    Casada, Donald A. (Knoxville, TN); Haynes, Howard D. (Knoxville, TN); Moyers, John C. (Oak Ridge, TN); Stewart, Brian K. (Burns, TN)

    1996-01-01T23:59:59.000Z

    Valve clearances and seating force, as well as other valve operational parameters, are determined by measuring valve stem rotation during opening and closing operations of a translatable gate valve. The magnitude of the stem rotation, and the relative difference between the stem rotation on opening and closing provides valuable data on the valve internals in a non-intrusive manner.

  9. CALIBRATION AND STABILITY MEASUREMENTS OF A FADC BASED DATA ACQUISITION SYSTEM

    E-Print Network [OSTI]

    of Physics and High Energy Astrophysics Institute, University of Utah. Salt Lake City, UT 84112, USA 2 of Illinois. Urbana, IL 61801, USA 5 Physics Department, Faculty of Science, Alexandria University, Egypt detector is designed to measure the energy and direction of extensive air showers (EAS) resulting from

  10. Method and system for measuring gate valve clearances and seating force

    DOE Patents [OSTI]

    Casada, D.A.; Haynes, H.D.; Moyers, J.C.; Stewart, B.K.

    1996-01-30T23:59:59.000Z

    Valve clearances and seating force, as well as other valve operational parameters, are determined by measuring valve stem rotation during opening and closing operations of a translatable gate valve. The magnitude of the stem rotation, and the relative difference between the stem rotation on opening and closing provides valuable data on the valve internals in a non-intrusive manner. 8 figs.

  11. Quantum Measurement-induced Dynamics of Many-Body Ultracold Bosonic and Fermionic Systems in Optical Lattices

    E-Print Network [OSTI]

    Mazzucchi, Gabriel; Caballero-Benitez, Santiago F; Elliott, Thomas J; Mekhov, Igor B

    2015-01-01T23:59:59.000Z

    Trapping ultracold atoms in optical lattices enabled numerous breakthroughs uniting several disciplines. Although the light is a key ingredient in such systems, its quantum properties are typically neglected, reducing the role of light to a classical tool for atom manipulation. Here we show how elevating light to the quantum level leads to novel phenomena, inaccessible in setups based on classical optics. Interfacing a many-body atomic system with quantum light opens it to the environment in an essentially nonlocal way, where spatial coupling can be carefully designed. The competition between typical processes in strongly correlated systems (local tunnelling and interaction) with global measurement backaction leads to novel multimode dynamics and the appearance of long-range correlated tunnelling capable of entangling distant lattices sites, even when tunnelling between neighbouring sites is suppressed by the quantum Zeno effect. We demonstrate both the break-up and protection of strongly interacting fermion ...

  12. Method and system to measure temperature of gases using coherent anti-stokes doppler spectroscopy

    DOE Patents [OSTI]

    Rhodes, Mark

    2013-12-17T23:59:59.000Z

    A method of measuring a temperature of a noble gas in a chamber includes providing the noble gas in the chamber. The noble gas is characterized by a pressure and a temperature. The method also includes directing a first laser beam into the chamber and directing a second laser beam into the chamber. The first laser beam is characterized by a first frequency and the second laser beam is characterized by a second frequency. The method further includes converting at least a portion of the first laser beam and the second laser beam into a coherent anti-Stokes beam, measuring a Doppler broadening of the coherent anti-Stokes beam, and computing the temperature using the Doppler broadening.

  13. Evaluation of the Integrated Holdup Measurement System with the M3(superscript 3)CA for Assay of Uranium and Plutonium Holdup

    SciTech Connect (OSTI)

    P. A. Russo; J. K. Sprinkle, Jr.; C. W. Bjork; T. O. McKown; G. A. Sheppard; S. E. Smith; J. F. Harris

    1999-08-01T23:59:59.000Z

    Uranium and plutonium holdup that has been simulated by insertion of a variety of sealed, reference samples into pipes, ducts, and other hardware has been measured over a period of six years with an integrated holdup measurement system. The result is a systematic evaluation of the generalized-geometry holdup (GGH) formalism applied to portable gamma-ray holdup measurements with low-resolution detectors. The extended exercise was carried out both with and without automation of the measurements, data reduction/analysis, and holdup evaluation. Automation was accomplished by the software Version 2 for the Holdup Measurement System (HMS2). The purpose of the exercise was to establish reliable benchmarks for GGH measurements and to document the advantages of the automation with actual measurement results. The results presented below demonstrate a factor of 2 improvement in the quantitative reliability of the holdup assay automated by HMS2. The automated results are otherwise identical to the manual measurements. These and similar exercises also show that automation can decrease by a factor of 20 or more the time required to execute a holdup measurement campaign and obtain the holdup quantities for the facility using an integrated holdup measurement system, and that only one person, rather than two, is required to perform the measurements. Enhanced implementation of the integrated holdup measurement system with new software, corrections for systematic effects, and improved room-temperature gamma-ray detectors is planned.

  14. Southern hemisphere tropospheric aerosol backscatter measurements - Implications for a laser wind system

    SciTech Connect (OSTI)

    Gras, J.L.; Platt, C.M.R.; Young, S.A.; Banks, S.M. (Commonwealth Scientific and Industrial Research Organization, Aspendale (Australia)); Jones, W.D. (NASA Marshall Space Flight Center, Huntsville, AL (USA)); Huffaker, R.M. (Coherent Technologies Inc., Boulder, CO (USA)); Booth, D.J. (Dept. of Applied Physics, Footscray (Australia))

    1991-03-20T23:59:59.000Z

    Values of backscatter coefficient at 0.532 {mu}m, 0.694 {mu}m, and 10.6 {mu}m were determined both by direct measurement and by Mie computation from measured aerosol microphysical properties in the eastern Australian region from 4{degree}S to 41{degree}S. Volume backscatter coefficients at 10.6 {mu}m were typically in the range 1 {times} 10{sup {minus}11} to 3 {times} 10{sup {minus}11} m{sup {minus}1}sr{sup {minus}1} for both approaches, although the experimental uncertainty in both cases was quite large. Agreement between the shorter wavelength lidars and the aerosol data was typically within the combined experimental uncertainties, although direct measurements were systematically larger than values derived from the aerosol data; individual regions were observed where the disagreement was larger than the combined error. Backscatter at 10.6 {mu}m and at visible wavelengths was found to be sensitive to essentially different regions of the aerosol size spectrum, questioning to some degree the validity of using short-wavelength extinction and backscatter data to infer tha global distribution of backscatter at wavelengths around 10.6 {mu}m. Considerable day-to-day variability in backscatter was observed at all wavelengths. The implications of the very low backscatter values found, compared to northern hemisphere values, should be considered in the design of the Laser Atmospheric Wind Sounder (LAWS).

  15. The Second Post-Newtonian Light Propagation and Its Astrometric Measurement in the Solar System

    E-Print Network [OSTI]

    Xue-Mei Deng

    2015-05-23T23:59:59.000Z

    The relativistic theories of light propagation are generalized by introducing two new parameters $\\varsigma$ and $\\eta$ in the second post-Newtonian (2PN) order, in addition to the parameterized post-Newtonian parameters $\\gamma$ and $\\beta$. This new 2PN parameterized (2PPN) formalism includes the non-stationary gravitational fields and the influences of all kinds of relativistic effects. The multipolar components of gravitating bodies are taken into account as well at the first post-Newtonian order. The equations of motion and their solutions of this 2PPN light propagation problem are obtained. Started from the definition of a measurable quantity, a gauge-invariant angle between the directions of two incoming photons for a differential measurement in astrometric observation is discussed and its formula is derived. For a precision level of a few microacrsecond ($\\mu$as) for space astrometry missions in the near future, we further consider a model of angular measurement, LATOR-like missions. In this case, all terms with aimed at the accuracy of $\\sim1\\mu$as are estimated.

  16. Laboratory measurements of the drying rates of low-slope roofing systems

    SciTech Connect (OSTI)

    Desjarlais, A.O.; Kyle, D.M.; Childs, P.W.; Christian, J.E.

    1994-05-01T23:59:59.000Z

    The service life of a roofing system typically ends when excessive amounts of water have entered the system. Roofing professionals determine whether the existing failed roofing system can be repaired or salvaged by recovering. A key element in this decision is whether the accumulated water will be able to leave the roofing system in a time frame that will prevent irreparable structural damage. There are several combined heat and mass transfer models that can be used to predict drying times for low-slope roofing systems. Very little experimental data exists that can be used to validate the performance of these models. To satisfy these needs, a series of laboratory experiments has been performed. Five test panels, comprised of a plywood deck, four types of roofing insulation, and a single ply membrane were installed in a climate simulator. The test panels were outfitted with temperature sensors and heat flux transducers, and were mounted on load cells. Water was added to the test panels and they were subjected to external diurnal cycles representative of summer and winter conditions for a southern US continental climate. The load cells supplied continuous records of the weights of the test panels; these data were used to compute the drying rates of the test panels. When these experiments were completed, the test panels were ``recovered`` with different thicknesses of insulation and the environmental conditions were reapplied to the test panels. This paper reports on the design and performance of these experiments. The data compiled during these tests supply insight into the effects of meteorological conditions, insulation R-value, insulation water vapor permeance, and roof recover on the rate that water will be removed from low-slope roofing systems.

  17. Measure Guideline: Combination Forced-Air Space and Tankless Domestic Hot Water Heating Systems

    SciTech Connect (OSTI)

    Rudd, A.

    2012-08-01T23:59:59.000Z

    This document describes design and application guidance for combination space and tankless domestic hot water heating systems (combination systems) used in residential buildings, based on field evaluation, testing, and industry meetings conducted by Building Science Corporation. As residential building enclosure improvements continue to drive heating loads down, using the same water heating equipment for both space heating and domestic water heating becomes attractive from an initial cost and space-saving perspective. This topic is applicable to single- and multi-family residential buildings, both new and retrofitted.

  18. Comparison of AVHRR classification and aerial photography interpretation for estimation of forest area. Forest Service research paper

    SciTech Connect (OSTI)

    Lannom, K.B.; Evans, D.L.; Zhu, Z.

    1995-09-01T23:59:59.000Z

    The USDA Forest Service Southern Forest Experiment Station`s Forest Inventory and Analysis (SO-FIA) unit uses a dot count method to estimate the percentage of forest area in counties or parishes from aerial photographs. The research reported in this paper was designed to determine whether Advanced Very High Resolution Radiometer (AVHRR) data could be used to estimate forest area at the county or parish level. For this study, AVHRR data for three parishes in central Louisiana were extracted from a 1991 AVHRR forest type map of the United States. Photo interpretation data were obtained from a digital mosaic of aerial photography of the parishes. Forest area estimates obtained by means of photo interpretation did not differ significantly from those obtained by analyzing AVHRR data.

  19. Breast Imaging Reporting and Data System (BI-RADS) breast composition descriptors: Automated measurement development for full field digital mammography

    SciTech Connect (OSTI)

    Fowler, E. E.; Sellers, T. A.; Lu, B. [Department of Cancer Epidemiology, Division of Population Sciences, H. Lee Moffitt Cancer Center, Tampa, Florida 33612 (United States)] [Department of Cancer Epidemiology, Division of Population Sciences, H. Lee Moffitt Cancer Center, Tampa, Florida 33612 (United States); Heine, J. J. [Department of Cancer Imaging and Metabolism, H. Lee Moffitt Cancer Center, Tampa, Florida 33612 (United States)] [Department of Cancer Imaging and Metabolism, H. Lee Moffitt Cancer Center, Tampa, Florida 33612 (United States)

    2013-11-15T23:59:59.000Z

    Purpose: The Breast Imaging Reporting and Data System (BI-RADS) breast composition descriptors are used for standardized mammographic reporting and are assessed visually. This reporting is clinically relevant because breast composition can impact mammographic sensitivity and is a breast cancer risk factor. New techniques are presented and evaluated for generating automated BI-RADS breast composition descriptors using both raw and calibrated full field digital mammography (FFDM) image data.Methods: A matched case-control dataset with FFDM images was used to develop three automated measures for the BI-RADS breast composition descriptors. Histograms of each calibrated mammogram in the percent glandular (pg) representation were processed to create the new BR{sub pg} measure. Two previously validated measures of breast density derived from calibrated and raw mammograms were converted to the new BR{sub vc} and BR{sub vr} measures, respectively. These three measures were compared with the radiologist-reported BI-RADS compositions assessments from the patient records. The authors used two optimization strategies with differential evolution to create these measures: method-1 used breast cancer status; and method-2 matched the reported BI-RADS descriptors. Weighted kappa (?) analysis was used to assess the agreement between the new measures and the reported measures. Each measure's association with breast cancer was evaluated with odds ratios (ORs) adjusted for body mass index, breast area, and menopausal status. ORs were estimated as per unit increase with 95% confidence intervals.Results: The three BI-RADS measures generated by method-1 had ? between 0.25–0.34. These measures were significantly associated with breast cancer status in the adjusted models: (a) OR = 1.87 (1.34, 2.59) for BR{sub pg}; (b) OR = 1.93 (1.36, 2.74) for BR{sub vc}; and (c) OR = 1.37 (1.05, 1.80) for BR{sub vr}. The measures generated by method-2 had ? between 0.42–0.45. Two of these measures were significantly associated with breast cancer status in the adjusted models: (a) OR = 1.95 (1.24, 3.09) for BR{sub pg}; (b) OR = 1.42 (0.87, 2.32) for BR{sub vc}; and (c) OR = 2.13 (1.22, 3.72) for BR{sub vr}. The radiologist-reported measures from the patient records showed a similar association, OR = 1.49 (0.99, 2.24), although only borderline statistically significant.Conclusions: A general framework was developed and validated for converting calibrated mammograms and continuous measures of breast density to fully automated approximations for the BI-RADS breast composition descriptors. The techniques are general and suitable for a broad range of clinical and research applications.

  20. Rigorous numerical estimation of Lyapunov exponents and invariant measures of iterated function systems and

    E-Print Network [OSTI]

    Froyland, Gary

    systems and random matrix products Gary Froyland Department of Mathematics and Computer Science University://www­math.uni­paderborn.de/¸froyland Kazuyuki Aihara Department of Mathematical Engineering and Information Physics The University of Tokyo 7­3­1 Hongo, Bunkyo­ku, Tokyo 113­0033, JAPAN Abstract We present a fast, simple matrix method of computing

  1. NEC Hazardous classification and compliance regarding the surface moisture monitor measurement system

    SciTech Connect (OSTI)

    Bussell, J.H., WHC

    1996-06-12T23:59:59.000Z

    The National Electrical Code, NFPA 70, and National Fire Protection Association requirements for use of Surface Moisture Monitor Systems in classified locations are discussed. The design and configuration of the surface moisture monitor are analyzed with respect to how they comply with requirements of the National Electrical Code requirements, articles 500-504.

  2. Energy Saving Measures of Heating Network - Computerized Real-time Control System

    E-Print Network [OSTI]

    Zhang, J.

    2006-01-01T23:59:59.000Z

    a new system control theory, that is computerize the real-time frequency conversion control or area,time, mode of heat transformation and temperature grads. The aim of the new theory is promoting the efficiency of energy conversion and minimizing...

  3. Bath Institute for Complex Systems Young measure flow as a model for damage

    E-Print Network [OSTI]

    Zimmer, Johannes

    if the energy were to obtain its global minimum. A natural strategy is therefore to search for local minimisers and Johannes Zimmer Bath Institute For Complex Systems Preprint 11/05 (2005) http://www.bath.ac.uk than global minimisation. In particular, the case of a non-coercive elastic energy density of Lennard

  4. Spacecraft Habitation Systems, Water Recovery and Waste Active Charged Particle and Neutron Radiation Measurement

    E-Print Network [OSTI]

    SBIR SBIR 62 63 I Spacecraft Habitation Systems, Water Recovery and Waste Management Active Charged indicate that secondary neutrons, with energies ranging between 0.5 to >150 MeV, make a significant discriminate between the fraction of dose, which results from secondary neutrons, and that which results from

  5. Method and apparatus to measure vapor pressure in a flow system

    DOE Patents [OSTI]

    Grossman, M.W.; Biblarz, O.

    1991-10-15T23:59:59.000Z

    The present invention is directed to a method for determining, by a condensation method, the vapor pressure of a material with a known vapor pressure versus temperature characteristic, in a flow system particularly in a mercury isotope enrichment process. 2 figures.

  6. Sensitivity and Accuracy of the Systems for the Magnetic Measurements of the LHC Magnets at CERN

    E-Print Network [OSTI]

    Bottura, L; Schnizer, P; Smirnov, N; Walckiers, L

    2000-01-01T23:59:59.000Z

    Beam optics of the LHC accelerator require stringent control of the field quality of the main dipole and quadrupole magnets. The field quality measurements need challenging accuracy given the small size of the aperture (50 mm) : relative strength of the magnets within 2×10-4, harmonics in the ppm range, axis determination within 0.1 mm, main field direction within 0.2 mrad. We present a detailed analysis of the accuracy and reproducibility obtained with the equipment presently available for the qualification tests of the first series magnets.

  7. Antarctica: measuring glacier velocity from satellite images

    SciTech Connect (OSTI)

    Lucchitta, B.K.; Ferguson, H.M.

    1986-11-28T23:59:59.000Z

    Many Landsat images of Antarctica show distinctive flow and crevasse features in the floating part of ice streams and outlet glaciers immediately below their grounding zones. Some of the features, which move with the glacier or ice stream, remain visible over many years and thus allow time-lapse measurements of ice velocities. Measurements taken from Landsat images of features on Byrd Glacier agree well with detailed ground and aerial observations. The satellite-image technique thus offers a rapid and cost-effective method of obtaining average velocities, to a first order of accuracy, of many ice streams and outlet glaciers near their termini.

  8. System and method for 100% moisture and basis weight measurement of moving paper

    DOE Patents [OSTI]

    Hernandez, Jose E. (Livermore, CA); Koo, Jackson C. (San Ramon, CA)

    2002-01-01T23:59:59.000Z

    A system for characterizing a set of properties for a moving substance are disclosed. The system includes: a first near-infrared linear array; a second near-infrared linear array; a first filter transparent to a first absorption wavelength emitted by the moving substance and juxtaposed between the substance and the first array; a second filter blocking the first absorption wavelength emitted by the moving substance and juxtaposed between the substance and the second array; and a computational device for characterizing data from the arrays into information on a property of the substance. The method includes the steps of: filtering out a first absorption wavelength emitted by a substance; monitoring the first absorption wavelength with a first near-infrared linear array; blocking the first wavelength from reaching a second near-infrared linear array; and characterizing data from the arrays into information on a property of the substance.

  9. Design of A Conduction-cooled 4T Superconducting Racetrack for Multi-field Coupling Measurement System

    E-Print Network [OSTI]

    Chen, Yuquan; Wu, Wei; Guan, Mingzhi; Wu, Beimin; Mei, Enming; Xin, Canjie

    2015-01-01T23:59:59.000Z

    A conduction-cooled superconducting magnet producing a transverse field of 4 Tesla has been designed for the new generation multi-field coupling measurement system, which was used to study the mechanical behavior of superconducting samples at cryogenic temperature and intense magnetic fields. Considering experimental costs and coordinating with system of strain measurements by contactless signals (nonlinear CCD optics system), the racetrack type for the coil winding was chosen in our design, and a compact cryostat with a two-stage GM cryocooler was designed and manufactured for the superconducting magnet. The magnet was composed of a pair of flat racetrack coils wound by NbTi/Cu superconducting composite wires, a copper and stainless steel combinational form and two Bi2Sr2CaCu2Oy superconducting current leads. All the coils were connected in series and can be powered with a single power supply. The maximum central magnetic field is 4 T. In order to support the high stress and uniform thermal distribution in t...

  10. Liquidus Temperature Measurements for Modeling Oxide Glass Systems Relevant to Nuclear Waste Vitrification

    SciTech Connect (OSTI)

    Hanni, Jonathan; Pressly, Eric D.; Crum, Jarrod V.; Minister, Kevin B.; Tran, Diana N.; Hrma, Pavel R.; Vienna, John D.

    2005-12-01T23:59:59.000Z

    Liquidus temperatures TL have been measured and primary phases have been determined for 42 (from an initial test matrix of 60) compositions within the Al2O3-B2O3-CaO-Na2O-SiO2 glass forming network. These data have been used to test TL calculations and primary phase predictions obtained using a modified associate species model (ASM). This paper highlights the strong linear correlations between composition and TL for glasses within the same primary phase fields, the strengths of the ASM in determining TL and phase for glasses observed to precipitate nepheline, and weaknesses of the ASM in predicting phase information and TL for calcia- and boria-rich glasses. TL has also been measured for glasses using two baseline compositions from the five-component network that have been individually doped with Fe2O3, Li2O, NiO, ZrO2, Cr2O3, ZnO, and MnO. These additional oxide glasses are intended for use as benchmark data for testing the model as more oxides are included.

  11. System and method for trapping and measuring a charged particle in a liquid

    DOE Patents [OSTI]

    Reed, Mark A; Krstic, Predrag S; Guan, Weihua; Zhao, Xiongce

    2013-07-23T23:59:59.000Z

    A system and method for trapping a charged particle is disclosed. A time-varying periodic multipole electric potential is generated in a trapping volume. A charged particle under the influence of the multipole electric field is confined to the trapping volume. A three electrode configuration giving rise to a 3D Paul trap and a four planar electrode configuration giving rise to a 2D Paul trap are disclosed.

  12. System and method for trapping and measuring a charged particle in a liquid

    DOE Patents [OSTI]

    Reed, Mark A; Krstic, Predrag S; Guan, Weihua; Zhao, Xiongce

    2012-10-23T23:59:59.000Z

    A system and method for trapping a charged particle is disclosed. A time-varying periodic multipole electric potential is generated in a trapping volume. A charged particle under the influence of the multipole electric field is confined to the trapping volume. A three electrode configuration giving rise to a 3D Paul trap and a four planar electrode configuration giving rise to a 2D Paul trap are disclosed.

  13. Measuring, monitoring, and assessing software process using PAMPA 2.0 knowledge-based system

    E-Print Network [OSTI]

    Jung, Jin Hwan

    2005-08-29T23:59:59.000Z

    all phases of the application development cycle; planning, development, quality assurance, and support. Defect WorkFlow SoftQuest Systems Defect tracking and change management tool DevTrack TechExcel Defect and project tracking tool. Features... retrieval Risk Radar Software Program Manager?s Network Risk management tool in Excel Risk+ C/S Solutions Inc. Risk analysis add-on for Microsoft Project to quantify the cost and schedule uncertainty associated with project plans using Monte Carlo...

  14. Performance predictions and measurements for space-power-system heat pipes

    SciTech Connect (OSTI)

    Prenger, F.C. Jr.

    1981-01-01T23:59:59.000Z

    High temperature liquid metal heat pipes designed for space power systems have been analyzed and tested. Three wick designs are discussed and a design rationale for the heat pipe is provided. Test results on a molybdenum, annular wick heat pipe are presented. Performance limitations due to boiling and capillary limits are presented. There is evidence that the vapor flow in the adiabatic section is turbulent and that the transition Reynolds number is 4000.

  15. An aerial radiological survey of the Hanford Site and surrounding area, Richland, Washington

    SciTech Connect (OSTI)

    Not Available

    1990-10-01T23:59:59.000Z

    An aerial radiological survey was conducted over the Department of Energy's Hanford Site near Richland, Washington, during the period 5 July through 26 August 1988. The survey was expanded, and additional flights were conducted to the east of the site and along the banks of the Columbia River down to McNary Dam near Umatilla. The survey was flown at altitude of 61 meters (200 feet) by a helicopter containing 17 liters (eight 2 in. {times} 4 in. {times} 16 in.) of sodium iodide detectors. Gamma ray data were collected over the survey area by flying north-south lines spaced 122 meters (400 feet) apart. The processed data indicated that detected radioisotopes and their associated gamma ray exposure rates were generally consistent with those expected from normal background emitters and man-made fission/activation products resulting from activities at the site. External exposure rates were generally 10 microroentgens per hour ({mu}R/h) with some operating areas over 1000 {mu}R/h. The radiation levels over more than 95% of the site are due to normal background exposure rates. 3 refs., 25 figs.

  16. Tests of Australian aerial radiometric data for use in petroleum reconnaissance

    SciTech Connect (OSTI)

    Saunders, D.F.; Branch, J.F.; Thompson, C.K. (Recon Exploration Pty. Ltd., Dallas, TX (United States))

    1994-03-01T23:59:59.000Z

    Recon Exploration Pty. Ltd. has successfully completed initial testing of a new method for processing and interpretation of AGSO's (Australian Geological Survey Organization, formerly Bureau of Mineral Resources) aerial gamma-ray spectrometer data for petroleum exploration in the Canning Basin, Western Australia and the Otway Basin, Victoria. Count-rate data for potassium and uranium were normalized to the thorium count rate for each sample to suppress unwanted effects of variations in surface lithology or soil type, soil moisture, vegetation cover, and counting geometry. The Canning Basin test area included five producing oil fields. All except one clearly exhibit significant and characteristic radiometric anomalies which include negative normalized potassium and more positive normalized uranium values. The Otway Basin test areas included PPL-1 commercial gas production which is associated with a group of significant radiometric anomalies similar to those in the Canning Basin. These results are similar to extensive ongoing tests in the US and are explained in terms of well-understood geological, geochemical, and geophysical models. Based on 69 wells in the three test areas, it is estimated that the chance of encountering hydrocarbons (economic production or shows) in wells within the radiometrically favorable zones is about 2.6 times greater than outside the favorable areas.

  17. Measurement of routinely encountered neutron field doses using portable survey instruments and a Bonner multisphere system

    E-Print Network [OSTI]

    Davis, Donald Reed

    1981-01-01T23:59:59.000Z

    Ludlum Model 15 NSC-A NSC-8 NSC-C NSC-D NSC-E NSC-F NSC-G NSC-H NSC-I NSC-J NSC-K NSC-L NSC-M 30. 19 mRem/hr 4. 38 2. 70 1. 54 4. 08 4. 31 5. 42 10. 91 4. 19 0. 48 0. 46 3. 64 0. 50 1000 mRem/hr 90 58 36 140 125 90 32 25... 20 17 70 10 950 mRem/hr 120 40 32 160 135 80 45 28 16 11 86 8 2 CYC-A CYC-8 CYC-C CYC-D CYC-E CYC-F 31 . 11 25. 23 3. 19 1. 95 1. 02 1. 96 1000 190 75 32 14 20 1550 176 72 23 15 24 denotes measurement made...

  18. Measurement of South Pole ice transparency with the IceCube LED calibration system

    E-Print Network [OSTI]

    IceCube Collaboration; M. G. Aartsen; R. Abbasi; Y. Abdou; M. Ackermann; J. Adams; J. A. Aguilar; M. Ahlers; D. Altmann; J. Auffenberg; X. Bai; M. Baker; S. W. Barwick; V. Baum; R. Bay; J. J. Beatty; S. Bechet; J. Becker Tjus; K. -H. Becker; M. Bell; M. L. Benabderrahmane; S. BenZvi; J. Berdermann; P. Berghaus; D. Berley; E. Bernardini; A. Bernhard; D. Bertrand; D. Z. Besson; G. Binder; D. Bindig; M. Bissok; E. Blaufuss; J. Blumenthal; D. J. Boersma; S. Bohaichuk; C. Bohm; D. Bose; S. Böser; O. Botner; L. Brayeur; A. M. Brown; R. Bruijn; J. Brunner; S. Buitink; M. Carson; J. Casey; M. Casier; D. Chirkin; B. Christy; K. Clark; F. Clevermann; S. Cohen; D. F. Cowen; A. H. Cruz Silva; M. Danninger; J. Daughhetee; J. C. Davis; C. De Clercq; S. De Ridder; P. Desiati; M. de With; T. DeYoung; J. C. Díaz-Vélez; M. Dunkman; R. Eagan; B. Eberhardt; J. Eisch; R. W. Ellsworth; S. Euler; P. A. Evenson; O. Fadiran; A. R. Fazely; A. Fedynitch; J. Feintzeig; T. Feusels; K. Filimonov; C. Finley; T. Fischer-Wasels; S. Flis; A. Franckowiak; R. Franke; K. Frantzen; T. Fuchs; T. K. Gaisser; J. Gallagher; L. Gerhardt; L. Gladstone; T. Glüsenkamp; A. Goldschmidt; G. Golup; J. A. Goodman; D. Góra; D. Grant; A. Groß; M. Gurtner; C. Ha; A. Haj Ismail; A. Hallgren; F. Halzen; K. Hanson; D. Heereman; P. Heimann; D. Heinen; K. Helbing; R. Hellauer; S. Hickford; G. C. Hill; K. D. Hoffman; R. Hoffmann; A. Homeier; K. Hoshina; W. Huelsnitz; P. O. Hulth; K. Hultqvist; S. Hussain; A. Ishihara; E. Jacobi; J. Jacobsen; G. S. Japaridze; K. Jero; O. Jlelati; B. Kaminsky; A. Kappes; T. Karg; A. Karle; J. L. Kelley; J. Kiryluk; F. Kislat; J. Kläs; S. R. Klein; J. -H. Köhne; G. Kohnen; H. Kolanoski; L. Köpke; C. Kopper; S. Kopper; D. J. Koskinen; M. Kowalski; M. Krasberg; G. Kroll; J. Kunnen; N. Kurahashi; T. Kuwabara; M. Labare; H. Landsman; M. J. Larson; M. Lesiak-Bzdak; J. Leute; J. Lünemann; J. Madsen; R. Maruyama; K. Mase; H. S. Matis; F. McNally; K. Meagher; M. Merck; P. Mészáros; T. Meures; S. Miarecki; E. Middell; N. Milke; J. Miller; L. Mohrmann; T. Montaruli; R. Morse; R. Nahnhauer; U. Naumann; H. Niederhausen; S. C. Nowicki; D. R. Nygren; A. Obertacke; S. Odrowski; A. Olivas; M. Olivo; A. O'Murchadha; L. Paul; J. A. Pepper; C. Pérez de los Heros; C. Pfendner; D. Pieloth; N. Pirk; J. Posselt; P. B. Price; G. T. Przybylski; L. Rädel; K. Rawlins; P. Redl; E. Resconi; W. Rhode; M. Ribordy; M. Richman; B. Riedel; J. P. Rodrigues; C. Rott; T. Ruhe; B. Ruzybayev; D. Ryckbosch; S. M. Saba; T. Salameh; H. -G. Sander; M. Santander; S. Sarkar; K. Schatto; M. Scheel; F. Scheriau; T. Schmidt; M. Schmitz; S. Schoenen; S. Schöneberg; L. Schönherr; A. Schönwald; A. Schukraft; L. Schulte; O. Schulz; D. Seckel; S. H. Seo; Y. Sestayo; S. Seunarine; C. Sheremata; M. W. E. Smith; M. Soiron; D. Soldin; G. M. Spiczak; C. Spiering; M. Stamatikos; T. Stanev; A. Stasik; T. Stezelberger; R. G. Stokstad; A. Stößl; E. A. Strahler; R. Ström; G. W. Sullivan; H. Taavola; I. Taboada; A. Tamburro; S. Ter-Antonyan; S. Tilav; P. A. Toale; S. Toscano; M. Usner; D. van der Drift; N. van Eijndhoven; A. Van Overloop; J. van Santen; M. Vehring; M. Voge; M. Vraeghe; C. Walck; T. Waldenmaier; M. Wallraff; R. Wasserman; Ch. Weaver; M. Wellons; C. Wendt; S. Westerhoff; N. Whitehorn; K. Wiebe; C. H. Wiebusch; D. R. Williams; H. Wissing; M. Wolf; T. R. Wood; C. Xu; D. L. Xu; X. W. Xu; J. P. Yanez; G. Yodh; S. Yoshida; P. Zarzhitsky; J. Ziemann; S. Zierke; A. Zilles; M. Zoll

    2013-01-22T23:59:59.000Z

    The IceCube Neutrino Observatory, approximately 1 km^3 in size, is now complete with 86 strings deployed in the Antarctic ice. IceCube detects the Cherenkov radiation emitted by charged particles passing through or created in the ice. To realize the full potential of the detector, the properties of light propagation in the ice in and around the detector must be well understood. This report presents a new method of fitting the model of light propagation in the ice to a data set of in-situ light source events collected with IceCube. The resulting set of derived parameters, namely the measured values of scattering and absorption coefficients vs. depth, is presented and a comparison of IceCube data with simulations based on the new model is shown.

  19. Apparatus for measuring the decontamination factor of a multiple filter air-cleaning system

    DOE Patents [OSTI]

    Ortiz, John P. (Santa Fe, NM)

    1986-01-01T23:59:59.000Z

    An apparatus for measuring the overall decontamination factor of first and second filters located in a plenum. The first filter separates the plenum's upstream and intermediate chambers. The second filter separates the plenum's intermediate and downstream chambers. The apparatus comprises an aerosol generator that generates a challenge aerosol. An upstream collector collects unfiltered aerosol which is piped to first and second dilution stages and then to a laser aerosol spectrometer. An intermediate collector collects challenge aerosol that penetrates the first filter. The filtered aerosol is piped to the first dilution stage, diluted, and then piped to the laser aerosol spectrometer which detects single particles. A downstream collector collects challenge aerosol that penetrates both filters. The twice-filtered aerosol is piped to the aerosol spectrometer. A pump and several valves control the movement of aerosol within the apparatus.

  20. Apparatus for measuring the decontamination factor of a multiple filter air-cleaning system

    DOE Patents [OSTI]

    Ortiz, J.P.

    1985-07-03T23:59:59.000Z

    An apparatus for measuring the overall decontamination factors of first and second filters located in a plenum. The first filter separates the plenum's upstream and intermediate chambers. The second filter separates the plenum's intermediate and downstream chambers. The apparatus comprises an aerosol generator that generates a challenge aerosol. An upstream collector collects unfiltered aerosol which is piped to first and second dilution stages and then to a laser aerosol spectrometer. An intermediate collector collects challenge aerosol that penetrates the first filter. The filtered aerosol is piped to the first dilution stage, diluted, and then piped to the laser aerosol spectrometer which detects single particles. A downstream collector collects challenge aerosol that penetrates both filters. The twice-filtered aerosol is piped to the aerosol spectrometer. A pump and several valves control the movement of aerosol within the apparatus.