Sample records for real time monitoring

  1. Real Time Monitoring: Achieving Energy Efficiency

    E-Print Network [OSTI]

    Rouse, S.

    ABSTRACT: IECBO?s International Conference for Enhanced Building Operations November 17-18, 2009 Austin, Texas. Energy @ Work www.Energy-Efficiency.com File: Rouse_ Abstract Contact: scott.rouse@energy-efficiency....com, (416) 402-0525 Proposal Type: o Electronic proposal for presentation Title of Paper: o Real Time Monitoring: Achieving Energy Efficiency! Conference: o ICEBO?s International Conference for Enhanced Building Operations Submitted by: o...

  2. In-line real time air monitor

    DOE Patents [OSTI]

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

    1998-01-01T23:59:59.000Z

    An in-line gas monitor capable of accurate gas composition analysis in a continuous real time manner even under strong applied vacuum conditions operates by mixing an air sample with helium forming a sample gas in two complementary sample loops embedded in a manifold which includes two pairs of 3-way solenoid valves. The sample gas is then analyzed in an ion trap mass spectrometer on a continuous basis. Two valve drivers actuate the two pairs of 3-way valves in a reciprocating fashion, so that there is always flow through the in-line gas monitor via one or the other of the sample loops. The duty cycle for the two pairs of 3-way valves is varied by tuning the two valve drivers to a duty cycle typically between 0.2 to 0.7 seconds.

  3. In-line real time air monitor

    DOE Patents [OSTI]

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

    1998-07-14T23:59:59.000Z

    An in-line gas monitor capable of accurate gas composition analysis in a continuous real time manner even under strong applied vacuum conditions operates by mixing an air sample with helium forming a sample gas in two complementary sample loops embedded in a manifold which includes two pairs of 3-way solenoid valves. The sample gas is then analyzed in an ion trap mass spectrometer on a continuous basis. Two valve drivers actuate the two pairs of 3-way valves in a reciprocating fashion, so that there is always flow through the in-line gas monitor via one or the other of the sample loops. The duty cycle for the two pairs of 3-way valves is varied by tuning the two valve drivers to a duty cycle typically between 0.2 to 0.7 seconds. 3 figs.

  4. Wide-area, real-time monitoring and visualization system

    DOE Patents [OSTI]

    Budhraja, Vikram S. (Los Angeles, CA); Dyer, James D. (La Mirada, CA); Martinez Morales, Carlos A. (Upland, CA)

    2011-11-15T23:59:59.000Z

    A real-time performance monitoring system for monitoring an electric power grid. The electric power grid has a plurality of grid portions, each grid portion corresponding to one of a plurality of control areas. The real-time performance monitoring system includes a monitor computer for monitoring at least one of reliability metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics, and markets metrics for the electric power grid. The data for metrics being monitored by the monitor computer are stored in a data base, and a visualization of the metrics is displayed on at least one display computer having a monitor. The at least one display computer in one said control area enables an operator to monitor the grid portion corresponding to a different said control area.

  5. Wide-area, real-time monitoring and visualization system

    DOE Patents [OSTI]

    Budhraja, Vikram S.; Dyer, James D.; Martinez Morales, Carlos A.

    2013-03-19T23:59:59.000Z

    A real-time performance monitoring system for monitoring an electric power grid. The electric power grid has a plurality of grid portions, each grid portion corresponding to one of a plurality of control areas. The real-time performance monitoring system includes a monitor computer for monitoring at least one of reliability metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics, and markets metrics for the electric power grid. The data for metrics being monitored by the monitor computer are stored in a data base, and a visualization of the metrics is displayed on at least one display computer having a monitor. The at least one display computer in one said control area enables an operator to monitor the grid portion corresponding to a different said control area.

  6. Real-time performance monitoring and management system

    DOE Patents [OSTI]

    Budhraja, Vikram S. (Los Angeles, CA); Dyer, James D. (La Mirada, CA); Martinez Morales, Carlos A. (Upland, CA)

    2007-06-19T23:59:59.000Z

    A real-time performance monitoring system for monitoring an electric power grid. The electric power grid has a plurality of grid portions, each grid portion corresponding to one of a plurality of control areas. The real-time performance monitoring system includes a monitor computer for monitoring at least one of reliability metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics, and markets metrics for the electric power grid. The data for metrics being monitored by the monitor computer are stored in a data base, and a visualization of the metrics is displayed on at least one display computer having a monitor. The at least one display computer in one said control area enables an operator to monitor the grid portion corresponding to a different said control area.

  7. Real-time human collaboration monitoring and intervention

    DOE Patents [OSTI]

    Merkle, Peter B. (Sandia Park, NM); Johnson, Curtis M. (Sandia Park, NM); Jones, Wendell B. (Albuquerque, NM); Yonas, Gerold (Albuquerque, NM); Doser, Adele B. (Albuquerque, NM); Warner, David J. (Rancho Santa Fe, CA)

    2010-07-13T23:59:59.000Z

    A method of and apparatus for monitoring and intervening in, in real time, a collaboration between a plurality of subjects comprising measuring indicia of physiological and cognitive states of each of the plurality of subjects, communicating the indicia to a monitoring computer system, with the monitoring computer system, comparing the indicia with one or more models of previous collaborative performance of one or more of the plurality of subjects, and with the monitoring computer system, employing the results of the comparison to communicate commands or suggestions to one or more of the plurality of subjects.

  8. Real Time PMU-Based Stability Monitoring Final Project Report

    E-Print Network [OSTI]

    Real Time PMU-Based Stability Monitoring Final Project Report Power Systems Engineering Research@eecs.wsu.edu Phone: 509-335-1150 Power Systems Engineering Research Center The Power Systems Engineering Research Center (PSERC) is a multi-university Center conducting research on challenges facing the electric power

  9. Method and apparatus for real time weld monitoring

    DOE Patents [OSTI]

    Leong, Keng H. (Lemont, IL); Hunter, Boyd V. (Bolingbrook, IL)

    1997-01-01T23:59:59.000Z

    An improved method and apparatus are provided for real time weld monitoring. An infrared signature emitted by a hot weld surface during welding is detected and this signature is compared with an infrared signature emitted by the weld surface during steady state conditions. The result is correlated with weld penetration. The signal processing is simpler than for either UV or acoustic techniques. Changes in the weld process, such as changes in the transmitted laser beam power, quality or positioning of the laser beam, change the resulting weld surface features and temperature of the weld surface, thereby resulting in a change in the direction and amount of infrared emissions. This change in emissions is monitored by an IR sensitive detecting apparatus that is sensitive to the appropriate wavelength region for the hot weld surface.

  10. REAL TIME ULTRASONIC ALUMINUM SPOT WELD MONITORING SYSTEM

    SciTech Connect (OSTI)

    Regalado, W. Perez; Chertov, A. M.; Maev, R. Gr. [Institute for Diagnostic Imaging Research, Physics Department, University of Windsor, 292 Essex Hall, 401 Sunset Ave. N9B 3P4 Windsor, Ontario (Canada)

    2010-02-22T23:59:59.000Z

    Aluminum alloys pose several properties that make them one of the most popular engineering materials: they have excellent corrosion resistance, and high weight-to-strength ratio. Resistance spot welding of aluminum alloys is widely used today but oxide film and aluminum thermal and electrical properties make spot welding a difficult task. Electrode degradation due to pitting, alloying and mushrooming decreases the weld quality and adjustment of parameters like current and force is required. To realize these adjustments and ensure weld quality, a tool to measure weld quality in real time is required. In this paper, a real time ultrasonic non-destructive evaluation system for aluminum spot welds is presented. The system is able to monitor nugget growth while the spot weld is being made. This is achieved by interpreting the echoes of an ultrasound transducer located in one of the welding electrodes. The transducer receives and transmits an ultrasound signal at different times during the welding cycle. Valuable information of the weld quality is embedded in this signal. The system is able to determine the weld nugget diameter by measuring the delays of the ultrasound signals received during the complete welding cycle. The article presents the system performance on aluminum alloy AA6022.

  11. A (Smart) Real-time PMU-assisted Power Transfer Limitation Monitoring

    E-Print Network [OSTI]

    A (Smart) Real-time PMU-assisted Power Transfer Limitation Monitoring and Enhancement System and Opportunities ATC Monitoring and Enhancement SystemsData issues · Real-time network model of 13,000-bus, 18168 braches · Real-time data · Verification of model and data #12;Model Validation & Correction Disturbance

  12. Real-time monitoring of the TVA power system

    SciTech Connect (OSTI)

    Cease, T.W.; Feldhaus, B. (Univ. of Tennessee, Chattanooga, TN (United States))

    1994-07-01T23:59:59.000Z

    This article describes how the Tennessee Valley Authority (TVA) is experimenting with one of the many concepts for the uses of phasor measurements, that of utilizing phasor measurement units (PMUs) as a state estimation system. However, the term state estimation no longer applies; what is being performed is a state determination in near real-time. The PMU is a transducer that can measure voltage and current with very high accuracy. It has the ability to calculate watts, vars, frequency, and phase angle twelve times per power line cycle. The PMU can be placed in the power system so as to provide time-stamped voltage and current phasors that can be used as state variables. Input from other PMUs throughout the power system can be synchronized to within 1 microsecond via the Global Positioning System (GPS). These real-time state variables provided by the PMUs allow state estimation to be replaced by state determination. The PMUs monitoring the power system can also provide the necessary data to accurately depict events and disturbances. The PMU can be set to be triggered by an event or disturbance. A user-defined table of data, including pretrigger data, which is the sampled data for a specified interval, is stored in the PMU. The data from a single PMU can be retrieved and analyzed by popular data analysis packages to show the performance of control and protection equipment. The tables retrieved from a network of PMUs can be used to determine the system response to these events and disturbances.

  13. Analysis of real-time reservoir monitoring : reservoirs, strategies, & modeling.

    SciTech Connect (OSTI)

    Mani, Seethambal S.; van Bloemen Waanders, Bart Gustaaf; Cooper, Scott Patrick; Jakaboski, Blake Elaine; Normann, Randy Allen; Jennings, Jim (University of Texas at Austin, Austin, TX); Gilbert, Bob (University of Texas at Austin, Austin, TX); Lake, Larry W. (University of Texas at Austin, Austin, TX); Weiss, Chester Joseph; Lorenz, John Clay; Elbring, Gregory Jay; Wheeler, Mary Fanett (University of Texas at Austin, Austin, TX); Thomas, Sunil G. (University of Texas at Austin, Austin, TX); Rightley, Michael J.; Rodriguez, Adolfo (University of Texas at Austin, Austin, TX); Klie, Hector (University of Texas at Austin, Austin, TX); Banchs, Rafael (University of Texas at Austin, Austin, TX); Nunez, Emilio J. (University of Texas at Austin, Austin, TX); Jablonowski, Chris (University of Texas at Austin, Austin, TX)

    2006-11-01T23:59:59.000Z

    The project objective was to detail better ways to assess and exploit intelligent oil and gas field information through improved modeling, sensor technology, and process control to increase ultimate recovery of domestic hydrocarbons. To meet this objective we investigated the use of permanent downhole sensors systems (Smart Wells) whose data is fed real-time into computational reservoir models that are integrated with optimized production control systems. The project utilized a three-pronged approach (1) a value of information analysis to address the economic advantages, (2) reservoir simulation modeling and control optimization to prove the capability, and (3) evaluation of new generation sensor packaging to survive the borehole environment for long periods of time. The Value of Information (VOI) decision tree method was developed and used to assess the economic advantage of using the proposed technology; the VOI demonstrated the increased subsurface resolution through additional sensor data. Our findings show that the VOI studies are a practical means of ascertaining the value associated with a technology, in this case application of sensors to production. The procedure acknowledges the uncertainty in predictions but nevertheless assigns monetary value to the predictions. The best aspect of the procedure is that it builds consensus within interdisciplinary teams The reservoir simulation and modeling aspect of the project was developed to show the capability of exploiting sensor information both for reservoir characterization and to optimize control of the production system. Our findings indicate history matching is improved as more information is added to the objective function, clearly indicating that sensor information can help in reducing the uncertainty associated with reservoir characterization. Additional findings and approaches used are described in detail within the report. The next generation sensors aspect of the project evaluated sensors and packaging survivability issues. Our findings indicate that packaging represents the most significant technical challenge associated with application of sensors in the downhole environment for long periods (5+ years) of time. These issues are described in detail within the report. The impact of successful reservoir monitoring programs and coincident improved reservoir management is measured by the production of additional oil and gas volumes from existing reservoirs, revitalization of nearly depleted reservoirs, possible re-establishment of already abandoned reservoirs, and improved economics for all cases. Smart Well monitoring provides the means to understand how a reservoir process is developing and to provide active reservoir management. At the same time it also provides data for developing high-fidelity simulation models. This work has been a joint effort with Sandia National Laboratories and UT-Austin's Bureau of Economic Geology, Department of Petroleum and Geosystems Engineering, and the Institute of Computational and Engineering Mathematics.

  14. REAL TIME FLAME MONITORING OF GASIFIER BURNER AND INJECTORS

    SciTech Connect (OSTI)

    James Servaites; Serguei Zelepouga; David Rue

    2003-10-01T23:59:59.000Z

    This report is submitted to the United States Department of Energy in partial fulfillment of the contractual requirements for Phase I of the project titled, ''Real Time Flame Monitoring of Gasifier Burner and Injectors'', under co-operative agreement number DE-FS26-02NT41585. The project is composed of three one-year budget periods. The work in each year is divided into separate Tasks to facilitate project management, orderly completion of all project objectives, budget control, and critical path application of personnel and equipment. This Topical Report presents results of the Task 1 and 2 work. The 2 D optical sensor was developed to monitor selected UV and visible wavelengths to collect accurate flame characterization information regarding mixing, flame shape, and flame rich/lean characteristic. Flame richness, for example, was determined using OH and CH intensity peaks in the 300 to 500 nanometer range of the UV and visible spectrum. The laboratory burner was operated over a wide range of air to fuel ratio conditions from fuel rich to fuel lean. The sooty oxygen enriched air flames were established to test the sensor ability to characterize flame structures with substantial presence of hot solid particles emitting strong ''black body radiation''. The knowledge gained in these experiments will be very important when the sensor is used for gasifier flame analyses. It is expected that the sensor when installed on the Global Energy gasifier will be exposed to complex radiation patterns. The measured energy will be a combination of spectra emitted by the combusting gases, hot solid particulates, and hot walls of the gasifier chamber. The ability to separate flame emissions from the ''black body emissions'' will allow the sensor to accurately determine flame location relative to the gasifier walls and the injectors, as well as to analyze the flame's structure and condition. Ultimately, this information should enable the gasification processes to be monitored and controlled and as a result increase durability and efficiency of the gasifier. To accomplish goals set for Task 2 GTI will utilize the CANMET Coal Gasification Research facility. The Entrained Coal Gasifier Burner Test Stand has been designed and is currently under construction in the CANMET Energy Technology Center (CETC), the research and technology arm of Natural Resources Canada (NRCan). This Gasifier Burner Stand (GBS) is a scaled-down mock-up of a working gasifier combustion system that can provide the flexible platform needed in the second year of the project to test the flame sensor. The GBS will be capable of simulating combustion and gasification processes occurring in commercial gasifiers, such as Texaco, Shell, and Wabash River.

  15. Real time monitoring of multiple wells flowing under pseudosteady state condition by using Kalman filtering

    E-Print Network [OSTI]

    Jacob, Suresh

    2002-01-01T23:59:59.000Z

    This work develops a method for the real time monitoring of well performance by using Kalman filtering. A system of two or more wells draining the same reservoir under pseudo steady state condition is monitored simultaneously to estimate both...

  16. REAL TIME MONITORING OF INFRASTRUCTURE USING TDR TECHNOLOGY : PRINCIPLES

    E-Print Network [OSTI]

    applications of Time Domain Reflectometry (TDR). TDR is basically radar in which a voltage pulse is launched-water interface. This strong reflection makes it possible to monitor changes in water level. In another variation, parallel rods can be embedded in soil and TDR is used to measure travel time of pulses reflected from

  17. REAL-TIME TRACER MONITORING OF RESERVOIR STIMULATION PROCEDURES

    SciTech Connect (OSTI)

    George Scott III

    2002-08-01T23:59:59.000Z

    Ongoing Phase 2 work comprises the development and field-testing of a real-time reservoir stimulation diagnostic system. Phase 3 work commenced in June 2001, and involved conducting research, development and field-testing of real-time enhanced dual-fluid stimulation processes. Experimental field-testing to date includes three well tests. Application of these real-time stimulation processes and diagnostic technologies has been technically successful with commercial production from the ''marginal'' reservoirs in the first two well tests. The third well test proved downhole-mixing is an efficient process for acid stimulation of a carbonate reservoir that produced oil and gas with 2200 psi bottomhole reservoir pressure, however, subsequent shut-in pressure testing indicated the reservoir was characterized by low-permeability. Realtimezone continues to seek patent protection in foreign markets to the benefit of both RTZ and NETL. Realtimezone and the NETL have licensed the United States patented to Halliburton Energy Services (HES). Ongoing Phase 2 and Phase 3 field-testing continues to confirm applications of both real-time technologies, from well testing conducted over the last 12-month work period and including well test scheduled for year-end of 2002. Technical data transfer to industry is ongoing via Internet tech-transfer, public presentations and industry publications. Final Phase 3 test work will be focused on further field-testing the innovational process of blending stimulation fluids downhole. This system provides a number of advantages in comparison to older industry fracturing techniques and allows the operator to control reservoir fracture propagation and concentrations of proppant placed in the reservoir, in real-time. Another observed advantage is that lower friction pressures result, which results in lower pump treating pressures and safer reservoir hydraulic fracturing jobs.

  18. System for remote multichannel real-time monitoring of mouse ECG via the Internet

    E-Print Network [OSTI]

    Oefinger, Matthew Blake, 1976-

    2003-01-01T23:59:59.000Z

    A hardware/software system was developed to allow real-time monitoring of multiple physiological signals simultaneously via the Internet. The hardware is specifically designed for measuring ECG signals from mice, while the ...

  19. Spectrum sensing improvement in cognitive radio networks for real-time patients monitoring

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Spectrum sensing improvement in cognitive radio networks for real-time patients monitoring Dramane-bands to perform their transmission any- time and anywhere. Cognitive radio, although appropriate technology. Key words: Cognitive radio networks, e-health, patients monitoring, connectivity, Grey Model, Machine

  20. Using Transient Electrical Measurements for Real-Time Monitoring of Battery State-of-Charge

    E-Print Network [OSTI]

    Nasipuri, Asis

    system. I. INTRODUCTION Future energy-storage systems are likely to use lithium- ion batteries because regulate efficiency and power availability in battery-based systems, it is important to have a robust realUsing Transient Electrical Measurements for Real-Time Monitoring of Battery State

  1. Real Time Flame Monitoring of Gasifier and Injectors

    SciTech Connect (OSTI)

    Zelepouga, Serguei; Saveliev, Alexei

    2011-12-31T23:59:59.000Z

    This project is a multistage effort with the final goal to develop a practical and reliable nonintrusive gasifier injector monitor to assess burner wear and need for replacement. The project team included the National Energy Technology Laboratory (NETL), Gas Technology Institute (GTI), North Carolina State University, and ConocoPhillips. This report presents the results of the sensor development and testing initially at GTI combustion laboratory with natural gas flames, then at the Canada Energy Technology Center (CANMET), Canada in the atmospheric coal combustor as well as in the pilot scale pressurized entrained flow gasifier, and finally the sensor capabilities were demonstrated at the Pratt and Whitney Rocketdyne (PWR) Gasifier and the Wabash River Repowering plant located in West Terre Haute, IN. The initial tests demonstrated that GTI gasifier sensor technology was capable of detecting shape and rich/lean properties of natural gas air/oxygen enriched air flames. The following testing at the Vertical Combustor Research Facility (VCRF) was a logical transition step from the atmospheric natural gas flames to pressurized coal gasification environment. The results of testing with atmospheric coal flames showed that light emitted by excited OH* and CH* radicals in coal/air flames can be detected and quantified. The maximum emission intensities of OH*, CH*, and black body (char combustion) occur at different axial positions along the flame length. Therefore, the excitation rates of CH* and OH* are distinct at different stages of coal combustion and can be utilized to identify and characterize processes which occur during coal combustion such as devolatilization, char heating and burning. To accomplish the goals set for Tasks 4 and 5, GTI utilized the CANMET Pressurized Entrained Flow Gasifier (PEFG). The testing parameters of the PEFG were selected to simulate optimum gasifier operation as well as gasifier conditions normally resulting from improper operation or failed gasifier injectors. The sensor developed under previous tasks was used to assess the spectroscopic characteristics of the gasifier flame. The obtained spectral data were successfully translated into flame temperature measurements. It was also demonstrated that the reduced spectral data could be very well correlated with very important gasification process parameters such as the air/fuel and water/fuel ratio. Any of these parameters (temperature, air/fuel, and water/fuel) is sufficient to assess burner wear; however, the tested sensor was capable of monitoring all three of them plus the flame shape as functions of burner wear. This will likely be a very powerful tool which should enable significant improvements in gasifier efficiency, reliability, and availability. The sensor technology was presented to the project??s industrial partner (ConocoPhillips). The partner expressed its strong interest in continuing to participate in the field validation phase of GTI's Flame Monitor Project. Finally the sensor was tested in the PWR (Pratt & Whitney Rocketdyne) gasification plant located at GTI??s research campus and at the ConocoPhillips industrial scale gasifier at Wabash River Indiana. The field trials of the GTI Gasifier sensor modified to withstand high temperature and pressure corrosive atmosphere of the industrial entrain flow gasifier. The project team successfully demonstrated the Gasifier Sensor system ability to monitor gasifier interior temperature maintaining unobstructed optical access for in excess of six week without any maintenance. The sensor examination upon completion of the trial revealed that the system did not sustain any damage and required minor cleanup of the optics.

  2. REAL-TIME, WEB BASED ENERGY MONITORING SYSTEM FOR A SOLAR ACADEMIC BUILDING John H. Scofield

    E-Print Network [OSTI]

    Scofield, John H.

    Field Station incorporates passive solar cooling and active solar heating, maximizes ergonomicREAL-TIME, WEB BASED ENERGY MONITORING SYSTEM FOR A SOLAR ACADEMIC BUILDING John H. Scofield. The Leslie Shao-ming Sun Field Station is a 9,800 sf single- story building designed to help Jasper Ridge

  3. RNA Degradation in Cell Extracts: Real-Time Monitoring by Fluorescence Resonance Energy Transfer (FRET)

    E-Print Network [OSTI]

    Walter, Nils G.

    S1 RNA Degradation in Cell Extracts: Real-Time Monitoring by Fluorescence Resonance Energy TransferM PMSF; we found the pH after dialysis to be 7.6. UV Melting Curves: 1 µM unlabeled or doubly fluorophore wavelength for a UV melting experiment, and the signal at 320 nm was subtracted as background. Temperatures

  4. DISTRIBUTED REAL-TIME TASK MONITORING IN THE SAFETY-CRITICAL SYSTEM MELODY

    E-Print Network [OSTI]

    Wedde, Horst F.

    -critical systems (such as nuclear power plants, distributed cooperation of autonomous robots in Outer Space that are typi- cally unpredictable, a very high amount of adaptability of sys- tem functions is demanded. SafetyDISTRIBUTED REAL-TIME TASK MONITORING IN THE SAFETY-CRITICAL SYSTEM MELODY Horst F. Wedde, Jon A

  5. REAL-TIME STRUCTURAL DAMAGE DETECTION USING WIRELESS SENSING AND MONITORING SYSTEM

    E-Print Network [OSTI]

    Stanford University

    REAL-TIME STRUCTURAL DAMAGE DETECTION USING WIRELESS SENSING AND MONITORING SYSTEM Kung-Chun Lu1 Professor, Department of Civil & Environmental Engineering, University of Michigan, Ann Arbor, MI 48109, USA, jerlynch@umich.edu 5 Professor, Department of Civil & Environmental Engineering, Stanford University

  6. Real Time Corrosion Monitoring in Lead and Lead-Bismuth Systems

    SciTech Connect (OSTI)

    James F. Stubbins; Alan Bolind; Ziang Chen

    2010-02-25T23:59:59.000Z

    The objective of this research program is to develop a real-time, in situ corrosion monitoring technique for flowing liquid Pb and eutectic PbBi (LBE) systems in a temperature range of 400 to 650 C. These conditions are relevant to future liquid metal cooled fast reactor operating parameters. THis program was aligned with the Gen IV Reactor initiative to develp technologies to support the design and opertion of a Pb or LBE-cooled fast reactor. The ability to monitor corrosion for protection of structural components is a high priority issue for the safe and prolonged operation of advanced liquid metal fast reactor systems. In those systems, protective oxide layers are intentionally formed and maintained to limit corrosion rates during operation. This program developed a real time, in situ corrosion monitoring tecnique using impedance spectroscopy (IS) technology.

  7. Real-time fracture monitoring in Engineered Geothermal Systems with seismic waves

    SciTech Connect (OSTI)

    Jose A. Rial; Jonathan Lees

    2009-03-31T23:59:59.000Z

    As proposed, the main effort in this project is the development of software capable of performing real-time monitoring of micro-seismic activity recorded by an array of sensors deployed around an EGS. The main milestones are defined by the development of software to perform the following tasks: Real-time micro-earthquake detection and location Real-time detection of shear-wave splitting Delayed-time inversion of shear-wave splitting These algorithms, which are discussed in detail in this report, make possible the automatic and real-time monitoring of subsurface fracture systems in geothermal fields from data collected by an array of seismic sensors. Shear wave splitting (SWS) is parameterized in terms of the polarization of the fast shear wave and the time delay between the fast and slow shear waves, which are automatically measured and stored. The measured parameters are then combined with previously measured SWS parameters at the same station and used to invert for the orientation (strike and dip) and intensity of cracks under that station. In addition, this grant allowed the collection of seismic data from several geothermal regions in the US (Coso) and Iceland (Hengill) to use in the development and testing of the software.

  8. Potentiometric Sensor for Real-Time Monitoring of Multivalent Ion Concentrations in Molten Salt

    SciTech Connect (OSTI)

    Peter A. Zink; Jan-Fong Jue; Brenda E. Serrano; Guy L. Fredrickson; Ben F. Cowan; Steven D. Herrmann; Shelly X. Li

    2010-07-01T23:59:59.000Z

    Electrorefining of spent metallic nuclear fuel in high temperature molten salt systems is a core technology in pyroprocessing, which in turn plays a critical role in the development of advanced fuel cycle technologies. In electrorefining, spent nuclear fuel is treated electrochemically in order to effect separations between uranium, noble metals, and active metals, which include the transuranics. The accumulation of active metals in a lithium chloride-potassium chloride (LiCl-KCl) eutectic molten salt electrolyte occurs at the expense of the UCl3-oxidant concentration in the electrolyte, which must be periodically replenished. Our interests lie with the accumulation of active metals in the molten salt electrolyte. The real-time monitoring of actinide concentrations in the molten salt electrolyte is highly desirable for controlling electrochemical operations and assuring materials control and accountancy. However, real-time monitoring is not possible with current methods for sampling and chemical analysis. A new solid-state electrochemical sensor is being developed for real-time monitoring of actinide ion concentrations in a molten salt electrorefiner. The ultimate function of the sensor is to monitor plutonium concentrations during electrorefining operations, but in this work gadolinium was employed as a surrogate material for plutonium. In a parametric study, polycrystalline sodium beta double-prime alumina (Na-?-alumina) discs and tubes were subject to vapor-phase exchange with gadolinium ions (Gd3+) using a gadolinium chloride salt (GdCl3) as a precursor to produce gadolinium beta double-prime alumina (Gd-?-alumina) samples. Electrochemical impedance spectroscopy and microstructural analysis were performed on the ion-exchanged discs to determine the relationship between ion exchange and Gd3+ ion conductivity. The ion-exchanged tubes were configured as potentiometric sensors in order to monitor real-time Gd3+ ion concentrations in mixtures of gadolinium chloride (GdCl3) in LiCl-KCl eutectic molten salts through measurement of the potential difference between a reference and working electrode.

  9. Real time monitoring of superparamagnetic nanoparticle self-assembly on surfaces of magnetic recording media

    SciTech Connect (OSTI)

    Ye, L.; Pearson, T.; Crawford, T. M., E-mail: crawftm@mailbox.sc.edu [Department of Physics and Astronomy, University of South Carolina, 712 Main Street, Columbia, South Carolina 29208 (United States); Qi, B.; Cordeau, Y.; Mefford, O. T. [Department of Materials Science and Engineering, Clemson University, 161 Sirrine Hall, Clemson, South Carolina 29634 (United States); Center for Optical Materials Science and Engineering Technologies (COMSET), 91 Technology Dr., Anderson, South Carolina 29625 (United States)

    2014-05-07T23:59:59.000Z

    Nanoparticle self-assembly dynamics are monitored in real-time by detecting optical diffraction from an all-nanoparticle grating as it self-assembles on a grating pattern recorded on a magnetic medium. The diffraction efficiency strongly depends on concentration, pH, and colloidal stability of nanoparticle suspensions, demonstrating the nanoparticle self-assembly process is highly tunable. This metrology could provide an alternative for detecting nanoparticle properties such as colloidal stability.

  10. Method and apparatus for real time imaging and monitoring of radiotherapy beams

    DOE Patents [OSTI]

    Majewski, Stanislaw (Yorktown, VA); Proffitt, James (Newport News, VA); Macey, Daniel J. (Birmingham, AL); Weisenberger, Andrew G. (Yorktown, VA)

    2011-11-01T23:59:59.000Z

    A method and apparatus for real time imaging and monitoring of radiation therapy beams is designed to preferentially distinguish and image low energy radiation from high energy secondary radiation emitted from a target as the result of therapeutic beam deposition. A detector having low sensitivity to high energy photons combined with a collimator designed to dynamically image in the region of the therapeutic beam target is used.

  11. Commissioning, Operation, Real Time Monitoring and Evaluation of Pilot: Achieving Optimal Performance through Building Commissioning

    E-Print Network [OSTI]

    Pang,X.; Piette, M.A.; Hao,B.

    2014-01-01T23:59:59.000Z

    BUILDINGS ENERGY EFFICIENCY CONSORTIUM U.S. - CHINA CLEAN ENERGY RESEARCH CENTER (CERC-BEE) E3: Commissioning, Operation, Real Time Monitoring and Evaluation of Pilot Achieving Optimal Performance through Building Commissioning Xiufeng Pang... for the Sustainable performance of Buildings Xiufeng Pang, Ph.D, P.E. 5 Cx Workshop Topic Covered Introduction of building Cx in the U.S., the standards and guidelines Building enclosure Cx New building Cx and LEED Cx requirements Existing building Cx...

  12. A real time status monitor for transistor bank driver power limit resistor in boost injection kicker power supply

    SciTech Connect (OSTI)

    Mi, J.; Tan, Y.; Zhang, W.

    2011-03-28T23:59:59.000Z

    For years suffering of Booster Injection Kicker transistor bank driver regulator troubleshooting, a new real time monitor system has been developed. A simple and floating circuit has been designed and tested. This circuit monitor system can monitor the driver regulator power limit resistor status in real time and warn machine operator if the power limit resistor changes values. This paper will mainly introduce the power supply and the new designed monitoring system. This real time resistor monitor circuit shows a useful method to monitor some critical parts in the booster pulse power supply. After two years accelerator operation, it shows that this monitor works well. Previously, we spent a lot of time in booster machine trouble shooting. We will reinstall all 4 PCB into Euro Card Standard Chassis when the power supply system will be updated.

  13. A real-time applicator position monitoring system for gynecologic intracavitary brachytherapy

    SciTech Connect (OSTI)

    Xia, Junyi, E-mail: junyi-xia@uiowa.edu; Waldron, Timothy; Kim, Yusung [Department of Radiation Oncology, University of Iowa, Iowa City, Iowa 52242 (United States)] [Department of Radiation Oncology, University of Iowa, Iowa City, Iowa 52242 (United States)

    2014-01-15T23:59:59.000Z

    Purpose: To develop a real-time applicator position monitoring system (RAPS) for intracavitary brachytherapy using an infrared camera and reflective markers. Methods: 3D image-guided brachytherapy requires high accuracy of applicator localization; however, applicator displacement can happen during patient transfer for imaging and treatment delivery. No continuous applicator position monitoring system is currently available. The RAPS system was developed for real-time applicator position monitoring without additional radiation dose to patients. It includes an infrared camera, reflective markers, an infrared illuminator, and image processing software. After reflective markers are firmly attached to the applicator and the patient body, applicator displacement can be measured by computing the relative change in distance between the markers. The reflective markers are magnetic resonance imaging (MRI) compatible, which is suitable for MRI-guided HDR brachytherapy paradigm. In our prototype, a Microsoft Kinect sensor with a resolution of 640 by 480 pixels is used as an infrared camera. A phantom study was carried out to compare RAPS' measurements with known displacements ranging from ?15 to +15 mm. A reproducibility test was also conducted. Results: The RAPS can achieve 4 frames/s using a laptop with Intel{sup } Core2 Duo processor. When the pixel size is 0.95 mm, the difference between RAPS' measurements and known shift values varied from 0 to 0.8 mm with the mean value of 0.1 mm and a standard deviation of 0.44 mm. The system reproducibility was within 0.6 mm after ten reposition trials. Conclusions: This work demonstrates the feasibility of a real-time infrared camera based gynecologic intracavitary brachytherapy applicator monitoring system. Less than 1 mm accuracy is achieved when using an off-the-shelf infrared camera.

  14. In-Situ Real Time Monitoring and Control of Mold Making and Filling Processes: Final Report

    SciTech Connect (OSTI)

    Mohamed Abdelrahman; Kenneth Currie

    2010-12-22T23:59:59.000Z

    This project presents a model for addressing several objectives envisioned by the metal casting industries through the integration of research and educational components. It provides an innovative approach to introduce technologies for real time characterization of sand molds, lost foam patterns and monitoring of the mold filling process. The technology developed will enable better control over the casting process. It is expected to reduce scrap and variance in the casting quality. A strong educational component is integrated into the research plan to utilize increased awareness of the industry professional, the potential benefits of the developed technology, and the potential benefits of cross cutting technologies.

  15. Procedure for calibration of a portable, real-time beryllium aerosol monitor based on laser-induced breakdown spectroscopy

    E-Print Network [OSTI]

    Killough, David Thomas

    2012-06-07T23:59:59.000Z

    Spectroscopy (LIPS), is an analytical method whereby atmospheric components and contaminants may be analyzed in real-time or near real-time directly in the workplace. A transportable beryllium air monitor system based on LIBS has been developed at the Los...

  16. REAL-TIME TRACER MONITORING OF RESERVOIR STIMULATION PROCEDURES VIA ELECTRONIC WIRELINE AND TELEMETRY DATA TRANSMISSION

    SciTech Connect (OSTI)

    George L. Scott III

    2005-01-01T23:59:59.000Z

    Finalized Phase 2-3 project work has field-proven two separate real-time reservoir processes that were co-developed via funding by the National Energy Technology Laboratory (NETL). Both technologies are presently patented in the United States and select foreign markets; a downhole-commingled reservoir stimulation procedure and a real-time tracer-logged fracturing diagnostic system. Phase 2 and early Phase 3 project work included the research, development and well testing of a U.S. patented gamma tracer fracturing diagnostic system. This stimulation logging process was successfully field-demonstrated; real-time tracer measurement of fracture height while fracturing was accomplished and proven technically possible. However, after the initial well tests, there were several licensing issues that developed between service providers that restricted and minimized Realtimezone's (RTZ) ability to field-test the real-time gamma diagnostic system as was originally outlined for this project. Said restrictions were encountered after when one major provider agreed to license their gamma logging tools to another. Both of these companies previously promised contributory support toward Realtimezone's DE-FC26-99FT40129 project work, however, actual support was less than desired when newly-licensed wireline gamma logging tools from one company were converted by the other from electric wireline into slickline, batter-powered ''memory'' tools for post-stimulation logging purposes. Unfortunately, the converted post-fracture measurement memory tools have no applications in experimentally monitoring real-time movement of tracers in the reservoir concurrent with the fracturing treatment. RTZ subsequently worked with other tracer gamma-logging tool companies for basic gamma logging services, but with lessened results due to lack of multiple-isotope detection capability. In addition to real-time logging system development and well testing, final Phase 2 and Phase 3 project work included the development of a real-time reservoir stimulation procedure, which was successfully field-demonstrated and is presently patented in the U.S. and select foreign countries, including Venezuela, Brazil and Canada. Said patents are co-owned by RTZ and the National Energy Technology Lab (NETL). In 2002, Realtimezone and the NETL licensed said patents to Halliburton Energy Services (HES). Additional licensing agreements (LA) are anticipated with other service industry companies in 2005. Final Phase 3 work has led to commercial applications of the real-time reservoir stimulation procedure. Four successfully downhole-mixed well tests were conducted with commercially expected production results. The most recent, fourth field test was a downhole-mixed stimulated well completed in June, 2004, which currently produces 11 BOPD with 90 barrels of water per day. Conducted Phase 2 and Phase 3 field-test work to date has resulted in the fine-tuning of a real-time enhanced stimulation system that will significantly increase future petroleum well recoveries in the United States and foreign petroleum fields, both onshore and offshore, and in vertical and horizontal wells.

  17. Real-Time Detection Methods to Monitor TRU Compositions in UREX+Process Streams

    SciTech Connect (OSTI)

    McDeavitt, Sean; Charlton, William; Indacochea, J Ernesto; taleyarkhan, Rusi; Pereira, Candido

    2013-03-01T23:59:59.000Z

    The U.S. Department of Energy has developed advanced methods for reprocessing spent nuclear fuel. The majority of this development was accomplished under the Advanced Fuel Cycle Initiative (AFCI), building on the strong legacy of process development R&D over the past 50 years. The most prominent processing method under development is named UREX+. The name refers to a family of processing methods that begin with the Uranium Extraction (UREX) process and incorporate a variety of other methods to separate uranium, selected fission products, and the transuranic (TRU) isotopes from dissolved spent nuclear fuel. It is important to consider issues such as safeguards strategies and materials control and accountability methods. Monitoring of higher actinides during aqueous separations is a critical research area. By providing on-line materials accountability for the processes, covert diversion of the materials streams becomes much more difficult. The importance of the nuclear fuel cycle continues to rise on national and international agendas. The U.S. Department of Energy is evaluating and developing advanced methods for safeguarding nuclear materials along with instrumentation in various stages of the fuel cycle, especially in material balance areas (MBAs) and during reprocessing of used nuclear fuel. One of the challenges related to the implementation of any type of MBA and/or reprocessing technology (e.g., PUREX or UREX) is the real-time quantification and control of the transuranic (TRU) isotopes as they move through the process. Monitoring of higher actinides from their neutron emission (including multiplicity) and alpha signatures during transit in MBAs and in aqueous separations is a critical research area. By providing on-line real-time materials accountability, diversion of the materials becomes much more difficult. The objective of this consortium was to develop real time detection methods to monitor the efficacy of the UREX+ process and to safeguard the separated TRUs against unlawful diversion from within a processing facility. To achieve this, a comprehensive strategy was implemented to incorporate traditional detectors and advanced Tensioned Metastable Fluid (TMFD) metastable fluid detectors (developed, in part, under this project) into a novel detector assembly coupled to the UREX+ centrifugal contactor array. The sections below provide a brief summary of the technical achievements completed during this project. The principal outcomes are documented in more complete details contained the doctoral dissertations and masters theses, journal papers, conference proceedings and additional items for more than the 35 publications that are listed in the program bibliography in Section 3.

  18. Real-time monitoring of volatile organic compounds using chemical ionization mass spectroscopy: Final report

    SciTech Connect (OSTI)

    Thornberg, S.M.; Mowry, C.D.; Keenan, M.R.; Bender, S.F.A. [Sandia National Labs., Albuquerque, NM (United States). Gas Analysis Lab.; Owen, T. [Intel Corp., Rio Rancho, NM (United States)

    1997-04-01T23:59:59.000Z

    Volatile organic compound (VOC) emission to the atmosphere is of great concern to semiconductor manufacturing industries, research laboratories, the public, and regulatory agencies. Some industries are seeking ways to reduce emissions by reducing VOCs at the point of use (or generation). This paper discusses the requirements, design, calibration, and use of a sampling inlet/quadrupole mass spectrometer system for monitoring VOCs in a semiconductor manufacturing production line. The system uses chemical ionization to monitor compounds typically found in the lithography processes used to manufacture semiconductor devices (e.g., acetone, photoresist). The system was designed to be transportable from tool to tool in the production line and to give the operator real-time feedback so the process(es) can be adjusted to minimize VOC emissions. Detection limits ranging from the high ppb range for acetone to the low ppm range fore other lithography chemicals were achieved using chemical ionization mass spectroscopy at a data acquisition rate of approximately 1 mass spectral scan (30 to 200 daltons) per second. A demonstration of exhaust VOC monitoring was performed at a working semiconductor fabrication facility during actual wafer processing.

  19. Monitoring and simulating real-time electric power system operation with phasor measurements

    SciTech Connect (OSTI)

    Phadke, A.G. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States)] [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States); Thorp, J.S. [American Electric Power Corp. (United States)] [American Electric Power Corp. (United States)

    1995-01-01T23:59:59.000Z

    In this research project, two important results have been achieved. The concept of generator axis load flow has been developed more fully, and has been tested through simulations on the 39-bus system (with 10 generators). Generator axis load flow is a load flow calculation which views the entire network from a few retained buses such as the internal nodes of the generators. As these nodes can be indirectly monitored in real time through phasor measurements of generator terminal quantities, it becomes possible to track and predict the behavior of the entire network from these few observation points. This is extremely valuable in the task of predicting network instability in real time. The task of instability prediction of a multi-machine power system is one of the most difficult analytical exercises. We investigated two of the most promising approaches: the extended equal area method, and the transient energy function method. Although both of these methods work well in many instances, we have shown that in other cases, the predictions made by the two methods are incorrect. The failure of the methods can be traced to their inability to deal with the behavior of the system after the first turning point of the motor swing curves. Instead of using these methods, we propose the direct integration of the machine swing equations following the start of a disturbance. Coupled with the generator aids load flow developed above, and using the high speed computers available now, we show that for systems of significant size (39 bus system), accurate predictions through direct computation are possible. The report also includes results on computational efficiency of the method of faster-than-real-time integration using machine equations and the generator aids load flow. It is anticipated that this technique will be useful in most practical applications in power system control centers of the future.

  20. ON-LINE THERMAL BARRIER COATING MONITORING FOR REAL-TIME FAILURE PROTECTION AND LIFE MAXIMIZATION

    SciTech Connect (OSTI)

    Dennis H. LeMieux

    2002-04-01T23:59:59.000Z

    Under the sponsorship of the U. S. Department of Energy's National Energy Laboratory, Siemens Westinghouse Power Corporation proposes a four year program titled, ''On-Line Thermal Barrier Coating (TBC) Monitor for Real-Time Failure Protection and Life Maximization,'' to develop, build and install the first generation of an on-line TBC monitoring system for use on land-based advanced gas turbines (AGT). Federal deregulation in electric power generation has accelerated power plant owner's demand for improved reliability availability maintainability (RAM) of the land-based advanced gas turbines. As a result, firing temperatures have been increased substantially in the advanced turbine engines, and the TBCs have been developed for maximum protection and life of all critical engine components operating at these higher temperatures. Losing TBC protection can therefore accelerate the degradation of substrate components materials and eventually lead to a premature failure of critical component and costly unscheduled power outages. This program seeks to substantially improve the operating life of high cost gas turbine components using TBC; thereby, lowering the cost of maintenance leading to lower cost of electricity. Siemens Westinghouse Power Corporation has teamed with Indigo Systems, a supplier of state-of-the-art infrared camera systems, and Wayne State University, a leading research organization in the field of infrared non-destructive examination (NDE), to complete the program.

  1. On-Line Thermal Barrier Coating Monitoring for Real-Time Failure Protection and Life Maximization

    SciTech Connect (OSTI)

    Dennis H. LeMieux

    2005-10-01T23:59:59.000Z

    Under the sponsorship of the U. S. Department of Energy's National Energy Laboratory, Siemens Power Generation, Inc proposed a four year program titled, ''On-Line Thermal Barrier Coating (TBC) Monitor for Real-Time Failure Protection and Life Maximization'', to develop, build and install the first generation of an on-line TBC monitoring system for use on land-based advanced gas turbines (AGT). Federal deregulation in electric power generation has accelerated power plant owner's demand for improved reliability availability maintainability (RAM) of the land-based advanced gas turbines. As a result, firing temperatures have been increased substantially in the advanced turbine engines, and the TBCs have been developed for maximum protection and life of all critical engine components operating at these higher temperatures. Losing TBC protection can therefore accelerate the degradation of substrate components materials and eventually lead to a premature failure of critical component and costly unscheduled power outages. This program seeks to substantially improve the operating life of high cost gas turbine components using TBC; thereby, lowering the cost of maintenance leading to lower cost of electricity. Siemens Power Generation, Inc. has teamed with Indigo Systems, a supplier of state-of-the-art infrared camera systems, and Wayne State University, a leading research organization in the field of infrared non-destructive examination (NDE), to complete the program.

  2. ON-LINE THERMAL BARRIER COATING MONITORING FOR REAL-TIME FAILURE PROTECTION AND LIFE MAXIMIZATION

    SciTech Connect (OSTI)

    Dennis H. LeMieux

    2003-07-01T23:59:59.000Z

    Under the sponsorship of the U. S. Department of Energy's National Energy Laboratory, Siemens Westinghouse Power Corporation proposes a four year program titled, ''On-Line Thermal Barrier Coating (TBC) Monitor for Real-Time Failure Protection and Life Maximization,'' to develop, build and install the first generation of an on-line TBC monitoring system for use on land-based advanced gas turbines (AGT). Federal deregulation in electric power generation has accelerated power plant owner's demand for improved reliability, availability, and maintainability (RAM) of the land-based advanced gas turbines. As a result, firing temperatures have been increased substantially in the advanced turbine engines, and the TBCs have been developed for maximum protection and life of all critical engine components operating at these higher temperatures. Losing TBC protection can, therefore, accelerate the degradation of substrate component materials and eventually lead to a premature failure of critical components and costly unscheduled power outages. This program seeks to substantially improve the operating life of high cost gas turbine components using TBC; thereby, lowering the cost of maintenance leading to lower cost of electricity. Siemens Westinghouse Power Corporation has teamed with Indigo Systems, a supplier of state-of-the-art infrared camera systems, and Wayne State University, a leading research organization in the field of infrared non-destructive examination (NDE), to complete the program.

  3. On-Line Thermal Barrier Coating Monitoring for Real-Time Failure Protection and Life Maximization

    SciTech Connect (OSTI)

    Dennis H. LeMieux

    2005-04-01T23:59:59.000Z

    Under the sponsorship of the U. S. Department of Energy's National Energy Laboratory, Siemens Westinghouse Power Corporation proposes a four year program titled, ''On-Line Thermal Barrier Coating (TBC) Monitor for Real-Time Failure Protection and Life Maximization'', to develop, build and install the first generation of an on-line TBC monitoring system for use on land-based advanced gas turbines (AGT). Federal deregulation in electric power generation has accelerated power plant owner's demand for improved reliability availability maintainability (RAM) of the land-based advanced gas turbines. As a result, firing temperatures have been increased substantially in the advanced turbine engines, and the TBCs have been developed for maximum protection and life of all critical engine components operating at these higher temperatures. Losing TBC protection can therefore accelerate the degradation of substrate components materials and eventually lead to a premature failure of critical component and costly unscheduled power outages. This program seeks to substantially improve the operating life of high cost gas turbine components using TBC; thereby, lowering the cost of maintenance leading to lower cost of electricity. Siemens Westinghouse Power Corporation has teamed with Indigo Systems, a supplier of state-of-the-art infrared camera systems, and Wayne State University, a leading research organization in the field of infrared non-destructive examination (NDE), to complete the program.

  4. On-Line Thermal Barrier Coating Monitoring for Real-Time Failure Protection and Life Maximization

    SciTech Connect (OSTI)

    Dennis H. LeMieux

    2004-10-01T23:59:59.000Z

    Under the sponsorship of the U. S. Department of Energy's National Energy Laboratory, Siemens Westinghouse Power Corporation proposes a four year program titled, ''On-Line Thermal Barrier Coating (TBC) Monitor for Real-Time Failure Protection and Life Maximization'', to develop, build and install the first generation of an on-line TBC monitoring system for use on land -based advanced gas turbines (AGT). Federal deregulation in electric power generation has accelerated power plant owner's demand for improved reliability availability maintainability (RAM) of the land-based advanced gas turbines. As a result, firing temperatures have been increased substantially in the advanced turbine engines, and the TBCs have been developed for maximum protection and life of all critical engine components operating at these higher temperatures. Losing TBC protection can therefore accelerate the degradation of substrate components materials and eventually lead to a premature failure of critical component and costly unscheduled power outages. This program seeks to substantially improve the operating life of high cost gas turbine components using TBC; thereby, lowering the cost of maintenance leading to lower cost of electricity. Siemens Westinghouse Power Corporation has teamed with Indigo Systems; a supplier of state-of-the-art infrared camera systems, and Wayne State University, a leading research organization.

  5. ON-LINE THERMAL BARRIER COATING MONITORING FOR REAL-TIME FAILURE PROTECTION AND LIFE MAXIMIZATION

    SciTech Connect (OSTI)

    Dennis H. LeMieux

    2003-10-01T23:59:59.000Z

    Under the sponsorship of the U. S. Department of Energy's National Energy Laboratory, Siemens Westinghouse Power Corporation proposes a four year program titled, ''On-Line Thermal Barrier Coating (TBC) Monitor for Real-Time Failure Protection and Life Maximization,'' to develop, build and install the first generation of an on-line TBC monitoring system for use on land-based advanced gas turbines (AGT). Federal deregulation in electric power generation has accelerated power plant owner's demand for improved reliability, availability, and maintainability (RAM) of the land-based advanced gas turbines. As a result, firing temperatures have been increased substantially in the advanced turbine engines, and the TBCs have been developed for maximum protection and life of all critical engine components operating at these higher temperatures. Losing TBC protection can, therefore, accelerate the degradation of substrate component materials and eventually lead to a premature failure of critical components and costly unscheduled power outages. This program seeks to substantially improve the operating life of high cost gas turbine components using TBC; thereby, lowering the cost of maintenance leading to lower cost of electricity. Siemens Westinghouse Power Corporation has teamed with Indigo Systems, a supplier of state-of-the-art infrared camera systems, and Wayne State University, a leading research organization in the field of infrared non-destructive examination (NDE), to complete the program.

  6. A multichannel, real-time MRI RF power monitor for independent SAR determination

    SciTech Connect (OSTI)

    El-Sharkawy, AbdEl-Monem M.; Qian Di; Bottomley, Paul A.; Edelstein, William A. [Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins, University School of Medicine, Baltimore, Maryland 21287 (United States); Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins, University School of Medicine, Baltimore, Maryland 21287 (United States) and Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland 21287 (United States); Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins, University School of Medicine, Baltimore, Maryland 21287 (United States)

    2012-05-15T23:59:59.000Z

    Purpose: Accurate measurements of the RF power delivered during clinical MRI are essential for safety and regulatory compliance, avoiding inappropriate restrictions on clinical MRI sequences, and for testing the MRI safety of peripheral and interventional devices at known RF exposure levels. The goal is to make independent RF power measurements to test the accuracy of scanner-reported specific absorption rate (SAR) over the extraordinary range of operating conditions routinely encountered in MRI. Methods: A six channel, high dynamic range, real-time power profiling system was designed and built for monitoring power delivery during MRI up to 440 MHz. The system was calibrated and used in two 3 T scanners to measure power applied to human subjects during MRI scans. The results were compared with the scanner-reported SAR. Results: The new power measurement system has highly linear performance over a 90 dB dynamic range and a wide range of MRI duty cycles. It has about 0.1 dB insertion loss that does not interfere with scanner operation. The measurements of whole-body SAR in volunteers showed that scanner-reported SAR was significantly overestimated by up to about 2.2 fold. Conclusions: The new power monitor system can accurately and independently measure RF power deposition over the wide range of conditions routinely encountered during MRI. Scanner-reported SAR values are not appropriate for setting exposure limits during device or pulse sequence testing.

  7. Effect of Body Mass Index on Intrafraction Prostate Displacement Monitored by Real-Time Electromagnetic Tracking

    SciTech Connect (OSTI)

    Butler, Wayne M., E-mail: wbutler@wheelinghospital.org [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States); Wheeling Jesuit University, Wheeling, West Virginia (United States); Morris, Mallory N. [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States)] [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States); Merrick, Gregory S. [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States) [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States); Wheeling Jesuit University, Wheeling, West Virginia (United States); Kurko, Brian S.; Murray, Brian C. [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States)] [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States)

    2012-10-01T23:59:59.000Z

    Purpose: To evaluate, using real-time monitoring of implanted radiofrequency transponders, the intrafraction prostate displacement of patients as a function of body mass index (BMI). Methods and Materials: The motions of Beacon radiofrequency transponders (Calypso Medical Technologies, Seattle, WA) implanted in the prostate glands of 66 men were monitored throughout the course of intensity modulated radiation therapy. Data were acquired at 10 Hz from setup to the end of treatment, but only the 1.7 million data points with a 'beam on' tag were used in the analysis. There were 21 obese patients, with BMI {>=}30 and 45 nonobese patients in the study. Results: Mean displacements were least in the left-right lateral direction (0.56 {+-} 0.24 mm) and approximately twice that magnitude in the superior-inferior and anterior-posterior directions. The net vector displacement was larger still, 1.95 {+-} 0.47 mm. Stratified by BMI cohort, the mean displacements per patient in the 3 Cartesian axes as well as the net vector for patients with BMI {>=}30 were slightly less (<0.2 mm) but not significantly different than the corresponding values for patients with lower BMIs. As a surrogate for the magnitude of oscillatory noise, the standard deviation for displacements in all measured planes showed no significant differences in the prostate positional variability between the lower and higher BMI groups. Histograms of prostate displacements showed a lower frequency of large displacements in obese patients, and there were no significant differences in short-term and long-term velocity distributions. Conclusions: After patients were positioned accurately using implanted radiofrequency transponders, the intrafractional displacements in the lateral, superior-inferior, and anterior-posterior directions as well as the net vector displacements were smaller, but not significantly so, for obese men than for those with lower BMI.

  8. Profiling Real-Time Electricity Consumption Data for Process Monitoring and Control

    SciTech Connect (OSTI)

    Omitaomu, Olufemi A [ORNL

    2013-01-01T23:59:59.000Z

    Today, smart meters serve as key assets to utilities and their customers because they are capable of recording and communicating real-time energy usage data; thus, enabling better understanding of energy usage patterns. Other potential benefits of smart meters data include the ability to improve customer experience, grid reliability, outage management, and operational efficiency. Despite these tangible benefits, many utilities are inundated by data and remain uncertain about how to extract additional value from these deployed assets outside of billing operations. One way to overcome this challenge is the development of new metrics for classifying utility customers. Traditionally, utilities classified their customers based on their business nature (residential, commercial, and industrial) and/or their total annual consumption. While this classification is useful for some operational functions, it is too limited for designing effective monitoring and control strategies. In this paper, a data mining methodology is proposed for clustering and profiling smart meters data in order to form unique classes of customers exhibiting similar usage patterns. The developed clusters could help utilities in identifying opportunities for achieving some of the benefits of smart meters data.

  9. Near-Real-Time Acoustic Monitoring of Beaked Whales and Other Cetaceans Using a SeagliderTM

    E-Print Network [OSTI]

    Baird, Robin W.

    temporal and spatial resolution in near-real time. Here we describe an autonomous underwater vehicle for new, cost- effective tools that allow scientists to monitor areas of interest autonomously with high anthropogenic activities such as seismic exploration for sub-sea fossil fuels or naval sonar exercises

  10. Real-Time Distribution Feeder Performance Monitoring, Advisory Control, and Health Management System

    SciTech Connect (OSTI)

    Stoupis, James; Mousavi, Mirrasoul

    2014-09-30T23:59:59.000Z

    New data collection system equipment was installed in Xcel Energy substations and data was collected from 6 substations and 20 feeders. During Phase I, ABB collected and analyzed 793 real-time events to date from 6 Xcel Energy substations and continues today. The development and integration of several applications was completed during the course of this project, including a model-based faulted segment identification algorithm, with very positive results validated with field-gathered data discussed and included in this report. For mostly underground feeders, the success rate is 90% and the overreach rate is 90%. For mostly overhead feeders, the success rate is 74% and the overreach rate is 50%. The developed method is producing very accurate results for mostly underground feeders. For mostly overhead feeders, due to the bad OMS data quality and varying fault resistance when arcing, the developed method is producing good results but with much room for improvement. One area where the algorithm can be improved is the accuracy for sub-cycle fault events. In these cases, the accuracy of the conventional signal processing methods suffers due to most of these methods being based on a one-cycle processing window. By improving the signal processing accuracy, the accuracy of the faulted segment identification algorithm will also improve significantly. ABB intends to devote research in this area in the near future to help solve this problem. Other new applications developed during the course of the project include volt/VAR monitoring, unbalanced capacitor switching detection, unbalanced feeder loading detection, and feeder overloading detection. An important aspect of the demonstration phase of the project is to show the ability to provide adequate heads-up time ahead of customer calls or AMI reports so that the operators are provided with the much needed time to collect information needed to address an outage. The advance notification feature of the demonstration system provides this time and helps accelerate service restoration ultimately. To demonstrate the effectiveness of this feature, a demo system using substation data alone was set up to compare the minutes saved over a period of 22 months for two feeders where the real-time notification system has been deployed. The metric used for performance assessment is the time difference between the actual outage time from the OMS versus the time the notification email was received on the operators desk. Over the period of 22 months, we have accumulated over 7600 minutes (32 hours) ahead of actual outage time compared to the OMS timestamps. The significance of this analysis is that it shows the potential to reduce the SAIDI minutes and directly impact utility performance in terms of outage duration. If deployed at scale, it would have a significant impact on system reliability. To put this number in perspective, it would be helpful to assign a dollar figure to the potential savings that could be realized. According to the host utility, the average cost for each customer-minute-out (CMO) is approximately $0.30 across the operating company. This includes both direct and indirect costs such as bad press. The outage data over the previous 4 years show that the average customer count on primary/tap level outages is about 56. Accordingly, the total minutes saved amounts to 425,600 CMOs on the average. This would in turn result in a potential cost savings figure of $127,680 for two feeders alone over the period of performance. This empirical evidence validates the strong value proposition of the project that was contemplated at the onset and its potential impact to reduce outage duration in support of DOEs goal of 20%

  11. Author's personal copy Applications and usage of the real-time Neutron Monitor Database q

    E-Print Network [OSTI]

    Usoskin, Ilya G.

    in Astrophysics from Space (E), High-Energy Solar Particle Events ­ Past, Present, Future/Joint Scientific Event ­ UOULU, PL 3000, FIN-90014, Finland i Yerevan Physics Institute after A.I. Alikhanyan-ARAGATS, Alikhanyan in real-time mode. An important one will be the establishment of an Alert signal when dangerous solar

  12. Real-time monitoring of cyclic nucleotide signaling in neurons using genetically-

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    -time monitoring of cyclic nucleotide signaling in neurons using genetically- encoded FRET probes Pierre VINCENT1: The signaling cascades involving cyclic nucleotides play a key role in signal transduction in virtually all cell types. Elucidation of the spatiotemporal regulation of cyclic nucleotide signaling requires methods

  13. Arnold Schwarzenegger REAL-TIME GRID RELIABILITY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor REAL-TIME GRID RELIABILITY MANAGEMENT California ISO Real Laboratory Consortium for Electric Reliability Technology Solutions APPENDIXC October 2008 CEC-500 (VSA) prototype to monitor system voltage conditions and provide real time dispatchers with reliability

  14. Real-time monitoring during transportation of a radioisotope thermoelectric generator (RTG) using the radioisotope thermoelectric generator transportation system (RTGTS)

    SciTech Connect (OSTI)

    Pugh, Barry K. [EG and G Mound Applied Technologies P.O. Box 3000 Miamisburg, Ohio 45343-3000 (United States)

    1997-01-10T23:59:59.000Z

    The Radioisotopic Thermoelectric Generators (RTGs) that will be used to support the Cassini mission will be transported in the Radioisotope Thermoelectric Generator Transportation System (RTGTS). To ensure that the RTGs will not be affected during transportation, all parameters that could adversely affect RTG's performance must be monitored. The Instrumentation and Data Acquisition System (IDAS) for the RTGTS displays, monitors, and records all critical packaging and trailer system parameters. The IDAS also monitors the package temperature control system, RTG package shock and vibration data, and diesel fuel levels for the diesel fuel tanks. The IDAS alarms if any of these parameters reach an out-of-limit condition. This paper discusses the real-time monitoring during transportation of the Cassini RTGs using the RTGTS IDAS.

  15. Real-time monitoring during transportation of a radioisotope thermoelectric generator (RTG) using the radioisotope thermoelectric generator transportation system (RTGTS)

    SciTech Connect (OSTI)

    Pugh, B.K. [EGG Mound Applied Technologies P.O. Box 3000 Miamisburg, Ohio45343-3000 (United States)

    1997-01-01T23:59:59.000Z

    The Radioisotopic Thermoelectric Generators (RTGs) that will be used to support the Cassini mission will be transported in the Radioisotope Thermoelectric Generator Transportation System (RTGTS). To ensure that the RTGs will not be affected during transportation, all parameters that could adversely affect RTG{close_quote}s performance must be monitored. The Instrumentation and Data Acquisition System (IDAS) for the RTGTS displays, monitors, and records all critical packaging and trailer system parameters. The IDAS also monitors the package temperature control system, RTG package shock and vibration data, and diesel fuel levels for the diesel fuel tanks. The IDAS alarms if any of these parameters reach an out-of-limit condition. This paper discusses the real-time monitoring during transportation of the Cassini RTGs using the RTGTS IDAS. {copyright} {ital 1997 American Institute of Physics.}

  16. MONITORING SPENT NUCLEAR FUEL REPROCESSING CONDITIONS NON-DESTRUCTIVELY AND IN NEAR-REAL-TIME USING THE MULTI-ISOTOPE PROCESS (MIP) MONITOR

    SciTech Connect (OSTI)

    Orton, Christopher R.; Fraga, Carlos G.; Douglas, Matthew; Christensen, Richard; Schwantes, Jon M.

    2010-05-07T23:59:59.000Z

    Researchers from Pacific Northwest National Laboratory and The Ohio State University are working to develop a system for monitoring spent nuclear fuel reprocessing facilities on-line, nondestructively, and in near-real-time. This method, known as the Multi-Isotope Process (MIP) Monitor, is based upon the measurement of distribution patterns of a suite of indicator (radioactive) isotopes present within product and waste streams of a nuclear reprocessing facility. Signatures from these indicator isotopes are monitored on-line by gamma spectrometry and compared, in near-real-time, to patterns representing "normal" process conditions using multivariate pattern recognition software. By targeting gamma-emitting indicator isotopes, the MIP Monitor approach is compatible with the use of small, portable, high-resolution gamma detectors that may be easily deployed throughout an existing facility. In addition, utilization of a suite of radio-elements, including ones with multiple oxidation states, increases the likelihood that attempts to divert material via process manipulation would be detected. Proof-of-principle modeling exercises simulating changes in acid strength have been completed and the results are promising. Laboratory testing is currently under way and significant results are available. Recent experimental results, along with an overview of the method are presented.

  17. Sensing Requirements for Real-Time Monitoring and Control in Energy Production

    E-Print Network [OSTI]

    Ghosh, Ruby N.

    effects from global warming, coupled with the rise of energy costs in developed countries has of US sources of coal contain high levels of sulfur. Physical and chemical sensor systems to monitor emission levels, H2S and COS which exist at significant levels must

  18. Real-time monitoring of ECLSS flight rules Scott Bell and David Kortenkamp

    E-Print Network [OSTI]

    Kortenkamp, David

    Architecture to the problem of monitoring ISS Environmental Control and Life Support Systems (ECLSS) flight Abstraction Architecture (DAA) that allows engineers to design software processes that iteratively convert and Astronautics #12;II. Data abstraction architecture A Data Abstraction Architecture (DAA) formalizes the data

  19. Real-Time Molecular Monitoring of Chemical Environment in ObligateAnaerobes during Oxygen Adaptive Response

    SciTech Connect (OSTI)

    Holman, Hoi-Ying N.; Wozei, Eleanor; Lin, Zhang; Comolli, Luis R.; Ball, David. A.; Borglin, Sharon; Fields, Matthew W.; Hazen, Terry C.; Downing, Kenneth H.

    2009-02-25T23:59:59.000Z

    Determining the transient chemical properties of the intracellular environment canelucidate the paths through which a biological system adapts to changes in its environment, for example, the mechanisms which enable some obligate anaerobic bacteria to survive a sudden exposure to oxygen. Here we used high-resolution Fourier Transform Infrared (FTIR) spectromicroscopy to continuously follow cellular chemistry within living obligate anaerobes by monitoring hydrogen bonding in their cellular water. We observed a sequence of wellorchestrated molecular events that correspond to changes in cellular processes in those cells that survive, but only accumulation of radicals in those that do not. We thereby can interpret the adaptive response in terms of transient intracellular chemistry and link it to oxygen stress and survival. This ability to monitor chemical changes at the molecular level can yield important insights into a wide range of adaptive responses.

  20. Grand Junction Projects Office Remedial Action Project: Feasibility test of real-time radiation monitoring during removal of surface contamination from concrete floors

    SciTech Connect (OSTI)

    Leino, R.; Corle, S.

    1995-10-01T23:59:59.000Z

    This feasibility test was conducted to determine if real-time radiation-monitoring instruments could be mounted on decontamination machines during remediation activities to provide useful and immediate feedback to equipment operators. The U.S. Department of Energy (DOE) sponsored this field test under the Grand Junction Projects Office Remedial Action Project (GJPORAP) to identify a more efficient method to remove radiological contamination from concrete floor surfaces. This test demonstrated that project durations and costs may be reduced by combining radiation-monitoring equipment with decontamination machines. The test also demonstrated that a microprocessor-based instrument such as a radiation monitor can withstand the type of vibration that is characteristic of floor scabblers with no apparent damage. Combining radiation-monitoring equipment with a decontamination machine reduces the time and costs required to decontaminate concrete surfaces. These time and cost savings result from the reduction in the number of interim radiological surveys that must be conducted to complete remediation. Real-time radiation monitoring allows equipment operators to accurately monitor contamination during the decontamination process without support from radiological technicians, which also reduces the project duration and costs. The DOE Grand Junction Projects Office recommends more extensive and rigorous testing of this real-time radiation monitoring to include a variety of surfaces and decontamination machines. As opportunities arise, additional testing will be conducted under GJPORAP.

  1. Power Saving of Real Time Embedded Sensor for Medical Remote Monitoring Frederic Fauberteau, Serge Midonnet,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    {fauberte, midonnet}@univ-paris-est.fr Dan Istrate ESIGETEL - LRIT 1, Rue du Port de Valvins, Avon, France systems. To reduce the consumption of the mi- croprocessor of such a system, a way is to power down a pure gain of energy. But practically, we must consider that this time comprises a slot of time during

  2. Real-time combustion control and diagnostics sensor-pressure oscillation monitor

    SciTech Connect (OSTI)

    Chorpening, Benjamin T. (Morgantown, WV); Thornton, Jimmy (Morgantown, WV); Huckaby, E. David (Morgantown, WV); Richards, George A. (Morgantown, WV)

    2009-07-14T23:59:59.000Z

    An apparatus and method for monitoring and controlling the combustion process in a combustion system to determine the amplitude and/or frequencies of dynamic pressure oscillations during combustion. An electrode in communication with the combustion system senses hydrocarbon ions and/or electrons produced by the combustion process and calibration apparatus calibrates the relationship between the standard deviation of the current in the electrode and the amplitudes of the dynamic pressure oscillations by applying a substantially constant voltage between the electrode and ground resulting in a current in the electrode and by varying one or more of (1) the flow rate of the fuel, (2) the flow rate of the oxidant, (3) the equivalence ratio, (4) the acoustic tuning of the combustion system, and (5) the fuel distribution in the combustion chamber such that the amplitudes of the dynamic pressure oscillations in the combustion chamber are calculated as a function of the standard deviation of the electrode current. Thereafter, the supply of fuel and/or oxidant is varied to modify the dynamic pressure oscillations.

  3. Final Technical Report of project: "Contactless Real-Time Monitoring of Paper Mechanical Behavior During Papermaking"

    SciTech Connect (OSTI)

    Emmanuel Lafond; Paul Ridgway; Ted Jackson; Rick Russo; Ken Telschow; Vance Deason; Yves Berthelot; David Griggs; Xinya Zhang; Gary Baum

    2005-08-30T23:59:59.000Z

    The early precursors of laser ultrasonics on paper were Prof. Y. Berthelot from the Georgia Institute of Technology/Mechanical Engineering department, and Prof. P. Brodeur from the Institute of Paper Science and Technology, both located in Atlanta, Georgia. The first Ph.D. thesis that shed quite some light on the topic, but also left some questions unanswered, was completed by Mont A. Johnson in 1996. Mont Johnson was Prof. Berthelot's student at Georgia Tech. In 1997 P. Brodeur proposed a project involving himself, Y. Berthelot, Dr. Ken Telschow and Mr. Vance Deason from INL, Honeywell-Measurex and Dr. Rick Russo from LBNL. The first time the proposal was not accepted and P. Brodeur decided to re-propose it without the involvement from LBNL. Rick Russo proposed a separate project on the same topic on his side. Both proposals were finally accepted and work started in the fall of 1997 on the two projects. Early on, the biggest challenge was to find an optical detection method which could detect laser-induced displacements of the web surface that are of the order of .1 micron in the ultrasonic range. This was to be done while the web was having an out-of-plane amplitude of motion in the mm range due to web flutter; while moving at 10 m/s to 30 m/s in the plane of the web, on the paper machine. Both teams grappled with the same problems and tried similar methods in some cases, but came up with two similar but different solutions one year later. The IPST, GT, INL team found that an interferometer made by Lasson Technologies Inc. using the photo-induced electro-motive force in Gallium Arsenide was able to detect ultrasonic waves up to 12-15 m/s. It also developed in house an interferometer using the Two-Wave Mixing effect in photorefractive crystals that showed good promises for on-line applications, and experimented with a scanning mirror to reduce motion-induced texture noise from the web and improve signal to noise ratio. On its side, LBNL had the idea to combine a commercial Mach-Zehnder interferometer to a spinning mirror synchronized to the web speed, in order to make almost stationary measurements. The method was demonstrated at up to 10 m/s. Both teams developed their own version of a web simulator that was driving a web of paper at 10 m/s or higher. The Department of Energy and members of the Agenda 2020 started to make a push for merging the two projects. This made sense because their topics were really identical but this was not well received by Prof. Brodeur. Finally IPST decided to reassign the direction of the IPST-INL-GT project in the spring of 1999 to Prof. Chuck Habeger so that the two teams could work together. Also at this time, Honeywell-Measurex dropped as a member of the team. It was replaced by ABB Industrial Systems whose engineers had extensive previous experience of working with ultrasonic sensors on paperboard. INL also finished its work on the project as its competencies were partly redundant with LBNL. From the summer of 1999, the IPST-GT and LBNL teams were working together and helped each other often by collaborating and visiting either laboratory when was necessary. Around the beginning of 2000, began an effort at IPST to create an off-line laser-ultrasonics instrument that could perform automated measurements of paper and paperboard's bending stiffness. It was widely known that the mechanical bending tests of paper used for years by the paper industry were very inaccurate and exhibited poor reproducibility; therefore the team needed a new instrument of reference to validate its future on-line results. In 1999-2000, the focus of the on-line instrument was on a pre-industrial demonstration on a pilot coater while reducing the damage to the web caused by the generation laser, below the threshold where it could be visible by the naked eye. During the spring of 2000 Paul Ridgway traveled to IPST and brought with him a redesigned system still using the same Mach-Zehnder interferometer as before, but this time employing an electric motor-driven spinning mirror instead of the previously belt-driven m

  4. THE MULTI-ISOTOPE PROCESS (MIP) MONITOR: A NEAR-REAL-TIME, NON-DESTRUCTIVE, INDICATOR OF SPENT NUCLEAR FUEL REPROCESSING CONDITIONS

    SciTech Connect (OSTI)

    Schwantes, Jon M.; Orton, Christopher R.; Fraga, Carlos G.; Douglas, Matthew; Christensen, Richard

    2010-05-07T23:59:59.000Z

    Researchers from Pacific Northwest National Laboratory and The Ohio State University are working to develop a system for monitoring spent nuclear fuel reprocessing facilities on-line, non-destructively, and in near-real-time. This method, known as the Multi-Isotope Process (MIP) Monitor, is based upon the measurement of distribution patterns of a suite of indicator (radioactive) isotopes present within product and waste streams of a nuclear reprocessing facility. Signatures from these indicator isotopes are monitored on-line by gamma spectrometry and compared, in near-real-time, to patterns representing "normal" process conditions using multivariate pattern recognition software. By targeting gamma-emitting indicator isotopes, the MIP Monitor approach is compatible with the use of small, portable, high-resolution gamma detectors that may be easily deployed throughout an existing facility. In addition, utilization of a suite of radio-elements, including ones with multiple oxidation states, increases the likelihood that attempts to divert material via process manipulation would be detected. Proof-of-principle modeling exercises simulating changes in acid strength have been completed and the results are promising. Laboratory validation is currently under way and significant results are available. The latest experimental results, along with an overview of the method will be presented.

  5. A real time expert system for performance monitoring and scheduling of a Cray Y-MP supercomputer

    E-Print Network [OSTI]

    Danait, Sachin W.

    1991-01-01T23:59:59.000Z

    administrator's workload. The prototype expert system was tested by submitting sample jobs in the differ&. n& hatch queues. It &vas observed that the load on the network had a signif- icant impact on the performance of the expert system. Ti...'1. ?1'&'s. The prototype, built using the real-time expert shell G2, controls the Net?'orl& f)ueueing System (NQS) on a Cray-YMP supercomputer. 5'ionitoring features are provided by us&' of graphs and read-out tables which provi&l& information...

  6. Real time automated inspection

    DOE Patents [OSTI]

    Fant, K.M.; Fundakowski, R.A.; Levitt, T.S.; Overland, J.E.; Suresh, B.R.; Ulrich, F.W.

    1985-05-21T23:59:59.000Z

    A method and apparatus are described relating to the real time automatic detection and classification of characteristic type surface imperfections occurring on the surfaces of material of interest such as moving hot metal slabs produced by a continuous steel caster. A data camera transversely scans continuous lines of such a surface to sense light intensities of scanned pixels and generates corresponding voltage values. The voltage values are converted to corresponding digital values to form a digital image of the surface which is subsequently processed to form an edge-enhanced image having scan lines characterized by intervals corresponding to the edges of the image. The edge-enhanced image is thresholded to segment out the edges and objects formed by the edges by interval matching and bin tracking. Features of the objects are derived and such features are utilized to classify the objects into characteristic type surface imperfections. 43 figs.

  7. REAL TIME SYSTEM OPERATIONS 2006-2007

    SciTech Connect (OSTI)

    Eto, Joseph H.; Parashar, Manu; Lewis, Nancy Jo

    2008-08-15T23:59:59.000Z

    The Real Time System Operations (RTSO) 2006-2007 project focused on two parallel technical tasks: (1) Real-Time Applications of Phasors for Monitoring, Alarming and Control; and (2) Real-Time Voltage Security Assessment (RTVSA) Prototype Tool. The overall goal of the phasor applications project was to accelerate adoption and foster greater use of new, more accurate, time-synchronized phasor measurements by conducting research and prototyping applications on California ISO's phasor platform - Real-Time Dynamics Monitoring System (RTDMS) -- that provide previously unavailable information on the dynamic stability of the grid. Feasibility assessment studies were conducted on potential application of this technology for small-signal stability monitoring, validating/improving existing stability nomograms, conducting frequency response analysis, and obtaining real-time sensitivity information on key metrics to assess grid stress. Based on study findings, prototype applications for real-time visualization and alarming, small-signal stability monitoring, measurement based sensitivity analysis and frequency response assessment were developed, factory- and field-tested at the California ISO and at BPA. The goal of the RTVSA project was to provide California ISO with a prototype voltage security assessment tool that runs in real time within California ISO?s new reliability and congestion management system. CERTS conducted a technical assessment of appropriate algorithms, developed a prototype incorporating state-of-art algorithms (such as the continuation power flow, direct method, boundary orbiting method, and hyperplanes) into a framework most suitable for an operations environment. Based on study findings, a functional specification was prepared, which the California ISO has since used to procure a production-quality tool that is now a part of a suite of advanced computational tools that is used by California ISO for reliability and congestion management.

  8. Reliable Real-time Clinical Monitoring Using Sensor Network Technology Octav Chipara, Christopher Brooks, Sangeeta Bhattacharya, Chenyang Lu,

    E-Print Network [OSTI]

    Lu, Chenyang

    - tients. We propose a monitoring system with two types of nodes: patient nodes equipped with wireless developed the Dynamic Relay Association Protocol (DRAP), an effective mechanism for discovering the right of stay in hospitals. The prevalence of clinical deterioration resulting in cardiopulmonary or respiratory

  9. In-situ, Real-Time Monitoring of Mechanical and Chemical Structure Changes in a V2O5 Battery Electrode Using a MEMS Optical Sensor

    SciTech Connect (OSTI)

    Jung, H. [University of Maryland; Gerasopoulos, K. [University of Maryland; Gnerlich, Markus [University of Maryland; Talin, A. Alec [Sandia National Laboratories; Ghodssi, Reza [University of Maryland

    2014-06-01T23:59:59.000Z

    This work presents the first demonstration of a MEMS optical sensor for in-situ, real-time monitoring of both mechanical and chemical structure evolutions in a V2O5 lithium-ion battery (LIB) cathode during battery operation. A reflective membrane forms one side of a Fabry-Perot (FP) interferometer, while the other side is coated with V2O5 and exposed to electrolyte in a half-cell LIB. Using one microscope and two laser sources, both the induced membrane deflection and the corresponding Raman intensity changes are observed during lithium cycling. Results are in good agreement with the expected mechanical behavior and disorder change of the V2O5 layers, highlighting the significant potential of MEMS as enabling tools for advanced scientific investigations.

  10. Magnetically insulated baffled probe for real-time monitoring of equilibrium and fluctuating values of space potentials, electron and ion temperatures, and densities

    SciTech Connect (OSTI)

    Demidov, V. I.; Koepke, M. E. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States); Raitses, Y. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

    2010-10-15T23:59:59.000Z

    By restricting the electron-collection area of a cold Langmuir probe compared to the ion-collection area, the probe floating potential can become equal to the space potential, and thus conveniently monitored, rather than to a value shifted from the space potential by an electron-temperature-dependent offset, i.e., the case with an equal-collection-area probe. This design goal is achieved by combining an ambient magnetic field in the plasma with baffles, or shields, on the probe, resulting in species-selective magnetic insulation of the probe collection area. This permits the elimination of electron current to the probe by further adjustment of magnetic insulation which results in an ion-temperature-dependent offset when the probe is electrically floating. Subtracting the floating potential of two magnetically insulated baffled probes, each with a different degree of magnetic insulation, enables the electron or ion temperature to be measured in real time.

  11. Continuous, real time microwave plasma element sensor

    DOE Patents [OSTI]

    Woskov, P.P.; Smatlak, D.L.; Cohn, D.R.; Wittle, J.K.; Titus, C.H.; Surma, J.E.

    1995-12-26T23:59:59.000Z

    Microwave-induced plasma is described for continuous, real time trace element monitoring under harsh and variable conditions. The sensor includes a source of high power microwave energy and a shorted waveguide made of a microwave conductive, refractory material communicating with the source of the microwave energy to generate a plasma. The high power waveguide is constructed to be robust in a hot, hostile environment. It includes an aperture for the passage of gases to be analyzed and a spectrometer is connected to receive light from the plasma. Provision is made for real time in situ calibration. The spectrometer disperses the light, which is then analyzed by a computer. The sensor is capable of making continuous, real time quantitative measurements of desired elements, such as the heavy metals lead and mercury. 3 figs.

  12. NRC Job Code V6060: Extended in-situ and real time monitoring. Task 4: Detection and monitoring of leaks at nuclear power plants external to structures

    SciTech Connect (OSTI)

    Sheen, S. H. (Nuclear Engineering Division)

    2012-08-01T23:59:59.000Z

    In support of Task 4 of the NRC study on compliance with 10 CFR part 20.1406, minimization of contamination, Argonne National Laboratory (ANL) conducted a one-year scoping study, in concert with a parallel study performed by NRC/NRR staff, on monitoring for leaks at nuclear power plants (NPPs) external to structures. The objective of this task-4 study is to identify and assess those sensors and monitoring techniques for early detection of abnormal radioactive releases from the engineered facility structures, systems and components (SSCs) to the surrounding underground environment in existing NPPs and planned new reactors. As such, methods of interest include: (1) detection of anomalous water content of soils surrounding SSCs, (2) radionuclides contained in the leaking water, and (3) secondary signals such as temperature. ANL work scope includes mainly to (1) identify, in concert with the nuclear industry, the sensors and techniques that have most promise to detect radionuclides and/or associated chemical releases from SSCs of existing NPPs and (2) review and provide comments on the results of the NRC/NRR staff scoping study to identify candidate technologies. This report constitutes the ANL deliverable of the task-4 study. It covers a survey of sensor technologies and leak detection methods currently applied to leak monitoring at NPPs. The survey also provides a technology evaluation that identifies their strength and deficiency based on their detection speed, sensitivity, range and reliability. Emerging advanced technologies that are potentially capable of locating releases, identifying the radionuclides, and estimating their concentrations and distributions are also included in the report along with suggestions of required further research and development.

  13. Real Time Grid Reliability Management 2005

    SciTech Connect (OSTI)

    Eto, Joe; Eto, Joe; Lesieutre, Bernard; Lewis, Nancy Jo; Parashar, Manu

    2008-07-07T23:59:59.000Z

    The increased need to manage California?s electricity grid in real time is a result of the ongoing transition from a system operated by vertically-integrated utilities serving native loads to one operated by an independent system operator supporting competitive energy markets. During this transition period, the traditional approach to reliability management -- construction of new transmission lines -- has not been pursued due to unresolved issues related to the financing and recovery of transmission project costs. In the absence of investments in new transmission infrastructure, the best strategy for managing reliability is to equip system operators with better real-time information about actual operating margins so that they can better understand and manage the risk of operating closer to the edge. A companion strategy is to address known deficiencies in offline modeling tools that are needed to ground the use of improved real-time tools. This project: (1) developed and conducted first-ever demonstrations of two prototype real-time software tools for voltage security assessment and phasor monitoring; and (2) prepared a scoping study on improving load and generator response models. Additional funding through two separate subsequent work authorizations has already been provided to build upon the work initiated in this project.

  14. Visualizations for Real-time Pricing Demonstration

    SciTech Connect (OSTI)

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

    2014-10-13T23:59:59.000Z

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

  15. Real-Time PCR Dean Fraga,1

    E-Print Network [OSTI]

    Jones, Michelle

    , Wooster, Ohio 2 Ohio Agricultural Research and Development Center, Wooster, Ohio 3 Ashland University, Ashland, Ohio OVERVIEW AND PRINCIPLES The real-time polymerase chain reaction (real-time PCR) is a recent

  16. New field programmable gate array-based image-oriented acquisition and real-time processing applied to plasma facing component thermal monitoring

    SciTech Connect (OSTI)

    Martin, V. [Pulsar Team-Project, INRIA Sophia Antipolis, Sophia Antipolis F-06902 (France); Dunand, G.; Moncada, V. [Sophia Conseil Company, Sophia Antipolis F-06560 (France); Jouve, M.; Travere, J.-M. [CEA, IRFM, Saint-Paul-Lez-Durance F-13108 (France)

    2010-10-15T23:59:59.000Z

    During operation of present fusion devices, the plasma facing components (PFCs) are exposed to high heat fluxes. Understanding and preventing overheating of these components during long pulse discharges is a crucial safety issue for future devices like ITER. Infrared digital cameras interfaced with complex optical systems have become a routine diagnostic to measure surface temperatures in many magnetic fusion devices. Due to the complexity of the observed scenes and the large amount of data produced, the use of high computational performance hardware for real-time image processing is then mandatory to avoid PFC damages. At Tore Supra, we have recently made a major upgrade of our real-time infrared image acquisition and processing board by the use of a new field programmable gate array (FPGA) optimized for image processing. This paper describes the new possibilities offered by this board in terms of image calibration and image interpretation (abnormal thermal events detection) compared to the previous system.

  17. Convex Optimization: from Real-Time Embedded

    E-Print Network [OSTI]

    Hall, Julian

    Convex Optimization: from Real-Time Embedded to Large-Scale Distributed Stephen Boyd Neal Parikh of Edinburgh, June 25 2014 1 #12;Outline Convex Optimization Real-Time Embedded Optimization Large-Scale Distributed Optimization Summary 2 #12;Outline Convex Optimization Real-Time Embedded Optimization Large

  18. Arnold Schwarzenegger REAL-TIME GRID RELIABILITY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor REAL-TIME GRID RELIABILITY MANAGEMENT Prototype Phasor-Based Real Reliability Technology Solutions APPENDIXE October 2008 CEC-500-2008-049-APE #12;#12;Prepared By: Lawrence in this report. #12;Slide 0 Consortium for Electric Reliability Technology Solutions Real-Time Dynamics

  19. Designing Distributed, Real-Time Systems

    E-Print Network [OSTI]

    Mills, Kevin

    - - Designing Distributed, Real-Time Systems Kevin L. Mills INFT 796 SUMMER 1993 DIRECTED READINGS IN SOFTWARE ENGINEERING WITH DR. H. GOMAA GEORGE MASON UNIVERSITY #12;Designing Distributed, Real-Time Systems problem faced by designers of software systems, and particularly by designers of distributed, real

  20. Los Alamos real-time and digital radiography plans

    SciTech Connect (OSTI)

    Strong, R.D.

    1983-01-01T23:59:59.000Z

    Real-time radiography is the conversion of the radiographic image into a video image for display on a TV monitor. Once the image is in video format it is easy to digitize it using one of several digitizing systems. When the image has been digitized, digital signal processing may be performed on the image to enhance it or to assist the radiographer in interpreting. Digital processing may be performed in near real-time of off-line.

  1. Real-Time Particulate Mass Measurements Pre and Post Diesel Particulat...

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

    2005deeranderson.pdf More Documents & Publications Advanced Radio Frequency-Based Sensors for Monitoring Diesel Particulate Filter Loading and Regeneration Real-Time...

  2. Near Real-Time Push Middleware

    E-Print Network [OSTI]

    Mal, Siddhartha Byron

    2012-01-01T23:59:59.000Z

    Integration of Near Real-Time Push Middleware o Performance characterization and comparison with TuVista DOE/LADWP Smart Grid

  3. A REAL-TIME AUTONOMOUS NAVIGATION ARCHITECTURE

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A REAL-TIME AUTONOMOUS NAVIGATION ARCHITECTURE Gang Chen, Thierry Fraichard and Luis Martinez for autonomous navigation: perception, localisation, mapping, real-time motion planning and motion tracking. INTRODUCTION Autonomous navigation requires to solve a num- ber of challenging problems in domains as dif

  4. Solar Real-Time Pricing: Is Real-Time Electricity Pricing Beneficial...

    Energy Savers [EERE]

    to Solar PV in New York City? Solar Real-Time Pricing: Is Real-Time Electricity Pricing Beneficial to Solar PV in New York City? The goal of this study is to evaluate the...

  5. Real Time Search User Behavior Real time search is an increasingly important area of

    E-Print Network [OSTI]

    Jansen, James

    . The most frequently used terms accounted for only 0.03% of the total terms. Concerning search topics Web search. Searchers of real time content often repeat queries overtime, perhaps indicating long term content increasingly enters the main stream. Keywords Real time search, real time content, Collecta

  6. Arnold Schwarzenegger REAL-TIME GRID RELIABILITY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor REAL-TIME GRID RELIABILITY MANAGEMENT Prototype Phasor-Based Real Research Program Prepared By: Lawrence Berkeley National Laboratory Consortium for Electric Reliability in this report. #12;#12;USER GUIDE Version 3 August 2005 Prepared by: for Consortium for Electric Reliability

  7. Real-time control over networks

    E-Print Network [OSTI]

    Ji, Kun

    2007-09-17T23:59:59.000Z

    researchers to develop NCSs to implement distributed control schemes. This dissertation presents a framework for the modeling, design, stability analysis, control, and bandwidth allocation of real-time control over networks. This framework covers key research...

  8. Real Time Grid Reliability Management 2005

    E-Print Network [OSTI]

    Eto, Joe

    2008-01-01T23:59:59.000Z

    SCE, W APA, PG&E Data PDC PI Interface frequency dataIntegration of CA ISO PDC with Arbiters California Real-TimePhasor Data Concentrator (PDC) receives data from PMUs in

  9. REAL TIME SYSTEM OPERATIONS 2006-2007

    E-Print Network [OSTI]

    Eto, Joseph H.

    2008-01-01T23:59:59.000Z

    basedonreal?timePMUdata byobservingthedifferencesas analysisofWECCPMUdata. Therecommendedanalysisapproach. V (pu) P-V curve PMU data P (pu) P-V curve PMU

  10. Towards Real Time Diagnostics of Hybrid Welding Laser/GMAW

    SciTech Connect (OSTI)

    Timothy Mcjunkin; Dennis C. Kunerth; Corrie Nichol; Evgueni Todorov; Steve Levesque; Feng Yu; Robert Danna Couch

    2013-07-01T23:59:59.000Z

    Methods are currently being developed towards a more robust system real time feedback in the high throughput process combining laser welding with gas metal arc welding. A combination of ultrasonic, eddy current, electronic monitoring, and visual techniques are being applied to the welding process. Initial simulation and bench top evaluation of proposed real time techniques on weld samples are presented along with the concepts to apply the techniques concurrently to the weld process. Consideration for the eventual code acceptance of the methods and system are also being researched as a component of this project. The goal is to detect defects or precursors to defects and correct when possible during the weld process.

  11. Towards real time diagnostics of Hybrid Welding Laser/GMAW

    SciTech Connect (OSTI)

    McJunkin, T. R.; Kunerth, D. C.; Nichol, C. I. [Idaho National Laboratory, Idaho Falls, ID 83415-3570 (United States); Todorov, E.; Levesque, S. [Edison Welding Institute, Columbus, OH (United States)

    2014-02-18T23:59:59.000Z

    Methods are currently being developed towards a more robust system real time feedback in the high throughput process combining laser welding with gas metal arc welding. A combination of ultrasonic, eddy current, electronic monitoring, and visual techniques are being applied to the welding process. Initial simulation and bench top evaluation of proposed real time techniques on weld samples are presented along with the concepts to apply the techniques concurrently to the weld process. Consideration for the eventual code acceptance of the methods and system are also being researched as a component of this project. The goal is to detect defects or precursors to defects and correct when possible during the weld process.

  12. Approaching Real-time Network Traffic Classification

    E-Print Network [OSTI]

    Haddadi, Hamed

    and studies. It serves as the input for Intrusion Detection Systems, provides Class-of-Service (CoS) mapping22 Approaching Real-time Network Traffic Classification ISSN 1470-5559 RR-06-12 October 2006-time Network Traffic Classification Wei Li, Kaysar Abdin, Robert Dann and Andrew Moore Department of Computer

  13. Real-time operating systems at higher control

    SciTech Connect (OSTI)

    Jensen, E.D.

    1995-01-01T23:59:59.000Z

    Although virtually all development of real-time operating systems focuses on the lowest of the three traditional control levels, sheet economics demands higher level real-time OSs. Meeting this demand requires a major change in the mindset of the people who have been focusing on the lowest level of control. {open_quotes}These people are trying to deal with an elephant`s tail, but they don`t realize that there is an elephant attached to it.{close_quotes} For more than three decades, the historical real-time mindset, concepts and techniques have been driven by a particular pair of contexts. First is the application context, which can be characterized as {open_quotes}small, simple, centralized, static subsystems for low-level, sampled data, monitoring and first-order control.{close_quotes} Second is the hardware context, characterized by a scarcity of hardware resources due to size, weight, power and cost considerations. Both of these contexts are changing dramatically in ways that {open_quotes}have a significant impact on the concepts and techniques of real-time computing.{close_quotes} Hardware now offers much higher performance and the real-time domain is expanding upward in the application control hierarchy.

  14. Real-Time Optimization Strategies for Building Systems

    E-Print Network [OSTI]

    Victor Zavala

    2011-07-02T23:59:59.000Z

    Jul 2, 2011 ... Abstract: We propose real-time optimization strategies for energy ... proactive, optimization, real-time, electricity markets, energy management.

  15. Getting Useful Real-Time Feedback About Your Program | Department...

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

    Getting Useful Real-Time Feedback About Your Program Getting Useful Real-Time Feedback About Your Program Better Buildings Webinar - May 25, 2011 20110525realtimefeedback.pdf...

  16. Wireless technology collects real-time information from oil and...

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

    Wireless technology collects real-time information from oil and gas wells Wireless technology collects real-time information from oil and gas wells The patented system delivers...

  17. Arnold Schwarzenegger REAL-TIME GRID RELIABILITY

    E-Print Network [OSTI]

    Arnold Schwarzenegger Governor REAL-TIME GRID RELIABILITY MANAGEMENT Scoping Study Report Reliability Technology Solutions APPENDIXG October 2008 CEC-500-2008-049-APG #12;#12;Prepared By: Lawrence for Electric Reliability Technology Solutions and was funded by the California Energy Commission's Public

  18. Addressing equipment set-up time and manufacturing cost through real time inline inspection in tantalum wire manufacturing

    E-Print Network [OSTI]

    Gonzlez, Carlos A. (Carlos Alberto), 1972-

    2004-01-01T23:59:59.000Z

    For this study, a novel wire inspection system was developed to detect surface defects and monitor diameter real-time during the final wire drawing operation. Throughout his work, it was proven that the new inspection ...

  19. Real Time Pricing and the Real Live Firm

    SciTech Connect (OSTI)

    Moezzi, Mithra; Goldman, Charles; Sezgen, Osman; Bharvirkar, Ranjit; Hopper, Nicole

    2004-05-26T23:59:59.000Z

    Energy economists have long argued the benefits of real time pricing (RTP) of electricity. Their basis for modeling customers response to short-term fluctuations in electricity prices are based on theories of rational firm behavior, where management strives to minimize operating costs and optimize profit, and labor, capital and energy are potential substitutes in the firm's production function. How well do private firms and public sector institutions operating conditions, knowledge structures, decision-making practices, and external relationships comport with these assumptions and how might this impact price response? We discuss these issues on the basis of interviews with 29 large (over 2 MW) industrial, commercial, and institutional customers in the Niagara Mohawk Power Corporation service territory that have faced day-ahead electricity market prices since 1998. We look at stories interviewees told about why and how they respond to RTP, why some customers report that they can't, and why even if they can, they don't. Some firms respond as theorized, and we describe their load curtailment strategies. About half of our interviewees reported that they were unable to either shift or forego electricity consumption even when prices are high ($0.50/kWh). Reasons customers gave for why they weren't price-responsive include implicit value placed on reliability, pricing structures, lack of flexibility in adjusting production inputs, just-in-time practices, perceived barriers to onsite generation, and insufficient time. We draw these observations into a framework that could help refine economic theory of dynamic pricing by providing real-world descriptions of how firms behave and why.

  20. Real time gamma-ray signature identifier

    DOE Patents [OSTI]

    Rowland, Mark (Alamo, CA); Gosnell, Tom B. (Moraga, CA); Ham, Cheryl (Livermore, CA); Perkins, Dwight (Livermore, CA); Wong, James (Dublin, CA)

    2012-05-15T23:59:59.000Z

    A real time gamma-ray signature/source identification method and system using principal components analysis (PCA) for transforming and substantially reducing one or more comprehensive spectral libraries of nuclear materials types and configurations into a corresponding concise representation/signature(s) representing and indexing each individual predetermined spectrum in principal component (PC) space, wherein an unknown gamma-ray signature may be compared against the representative signature to find a match or at least characterize the unknown signature from among all the entries in the library with a single regression or simple projection into the PC space, so as to substantially reduce processing time and computing resources and enable real-time characterization and/or identification.

  1. Real-time fault detection and isolation in biological wastewater treatment plants

    E-Print Network [OSTI]

    Real-time fault detection and isolation in biological wastewater treatment plants F. Baggiani and S@dsi.unifi.it Automatic fault detection is becoming increasingly important in wastewater treatment plant operation, given automation controllers, wastewater treatment INTRODUCTION Real-time monitoring is an increasingly important

  2. Real-Time Measurements of Actin Filament Polymerization by Total Internal Reflection Fluorescence Microscopy

    E-Print Network [OSTI]

    Real-Time Measurements of Actin Filament Polymerization by Total Internal Reflection Fluorescence polymerization and its regulation by associated proteins requires an assay to monitor polymerization dynamics nucleotide. INTRODUCTION Actin polymerization contributes to many cellular processes under the control

  3. Real-Time Demand Side Energy Management

    E-Print Network [OSTI]

    Victor, A.; Brodkorb, M.

    2006-01-01T23:59:59.000Z

    Real-Time Demand Side Energy Management Annelize Victor Michael Brodkorb Sr. Business Consultant Business Development Manager Aspen Technology, Inc. Aspen Technology Espaa, S.A. Houston, TX Barcelona, Spain ABSTRACT To remain... competitive, manufacturers must capture opportunities to increase bottom-line profitability. The goal of this paper is to present a new methodology for reducing energy costs Demand-Side Energy Management. Learn how process manufacturers assess energy...

  4. Real time chemical exposure and risk monitor

    DOE Patents [OSTI]

    Thrall, K.D.; Kenny, D.V.; Endres, G.W.R.; Sisk, D.R.

    1997-07-08T23:59:59.000Z

    The apparatus of the present invention is a combination of a breath interface and an external exposure dosimeter interface to a chemical analysis device, all controlled by an electronic processor for quantitatively analyzing chemical analysis data from both the breath interface and the external exposure dosimeter for determining internal tissue dose. The method of the present invention is a combination of steps of measuring an external dose, measuring breath content, then analyzing the external dose and breath content and determining internal tissue dose. 7 figs.

  5. Real time chemical exposure and risk monitor

    DOE Patents [OSTI]

    Thrall, Karla D. (3804 Alder Lake Ct., West Richland, WA 99353); Kenny, Donald V. (6947 Sparrow La., Worthington, OH 43235); Endres, George W. R. (2112 Briarwood Ct., Richland, WA 99352); Sisk, Daniel R. (1211 Marshall Ave., Richland, WA 99352)

    1997-01-01T23:59:59.000Z

    The apparatus of the present invention is a combination of a breath interface and an external exposure dosimeter interface to a chemical analysis device, all controlled by an electronic processor for quantitatively analyzing chemical analysis data from both the breath interface and the external exposure dosimeter for determining internal tissue dose. The method of the present invention is a combination of steps of measuring an external dose, measuring breath content, then analyzing the external dose and breath content and determining internal tissue dose.

  6. Subsystem real-time Time Dependent Density Functional Theory

    E-Print Network [OSTI]

    Krishtal, Alisa; Pavanello, Michele

    2015-01-01T23:59:59.000Z

    We present the extension of Frozen Density Embedding (FDE) theory to real-time Time Dependent Density Functional Theory (rt-TDDFT). FDE a is DFT-in-DFT embedding method that allows to partition a larger Kohn-Sham system into a set of smaller, coupled Kohn-Sham systems. Additional to the computational advantage, FDE provides physical insight into the properties of embedded systems and the coupling interactions between them. The extension to rt-TDDFT is done straightforwardly by evolving the Kohn-Sham subsystems in time simultaneously, while updating the embedding potential between the systems at every time step. Two main applications are presented: the explicit excitation energy transfer in real time between subsystems is demonstrated for the case of the Na$_4$ cluster and the effect of the embedding on optical spectra of coupled chromophores. In particular, the importance of including the full dynamic response in the embedding potential is demonstrated.

  7. The Case for Feedback Control RealTime Scheduling John A. Stankovic, Chenyang Lu, Sang H. Son and Gang Tao*

    E-Print Network [OSTI]

    Son, Sang H.

    The Case for Feedback Control Real­Time Scheduling John A. Stankovic, Chenyang Lu, Sang H. Son dynamic systems. In this paper, we present a new scheduling paradigm, which we call feedback control real­time scheduling. Feedback control real­time scheduling defines error terms for schedules, monitors the error

  8. Real Time Simulation of Power Grid Disruptions

    SciTech Connect (OSTI)

    Chinthavali, Supriya [ORNL; Dimitrovski, Aleksandar D [ORNL; Fernandez, Steven J [ORNL; Groer, Christopher S [ORNL; Nutaro, James J [ORNL; Olama, Mohammed M [ORNL; Omitaomu, Olufemi A [ORNL; Shankar, Mallikarjun [ORNL; Spafford, Kyle L [ORNL; Vacaliuc, Bogdan [ORNL

    2012-11-01T23:59:59.000Z

    DOE-OE and DOE-SC workshops (Reference 1-3) identified the key power grid problem that requires insight addressable by the next generation of exascale computing is coupling of real-time data streams (1-2 TB per hour) as the streams are ingested to dynamic models. These models would then identify predicted disruptions in time (2-4 seconds) to trigger the smart grid s self healing functions. This project attempted to establish the feasibility of this approach and defined the scientific issues, and demonstrated example solutions to important smart grid simulation problems. These objectives were accomplished by 1) using the existing frequency recorders on the national grid to establish a representative and scalable real-time data stream; 2) invoking ORNL signature identification algorithms; 3) modeling dynamically a representative region of the Eastern interconnect using an institutional cluster, measuring the scalability and computational benchmarks for a national capability; and 4) constructing a prototype simulation for the system s concept of smart grid deployment. The delivered ORNL enduring capability included: 1) data processing and simulation metrics to design a national capability justifying exascale applications; 2) Software and intellectual property built around the example solutions; 3) demonstrated dynamic models to design few second self-healing.

  9. Baton Rouge Complex Steam Real Time Optimization

    E-Print Network [OSTI]

    Iyun, T.

    2014-01-01T23:59:59.000Z

    Baton Rouge Complex Steam Real Time Optimization IETC 2014 New Orleans, Louisiana Tope Iyun ExxonMobil Chemical Company May 22, 2014 ESL-IE-14-05-32 Proceedings of the Thrity-Sixth Industrial Energy Technology Conference New Orleans, LA. May 20... were generated by or on behalf of ExxonMobil Chemical Company. Legal Disclosures 2014 ExxonMobil. To the extent the user is entitled to disclose and distribute this document, the user may forward, distribute, and/or photocopy this copyrighted...

  10. A Survey of Utility Experience with Real Time Pricing

    E-Print Network [OSTI]

    Barbose, Galen; Goldman, Charles; Neenan, Bernie

    2004-01-01T23:59:59.000Z

    Day Ahead Hourly Time of Use Tariff Description This is aTariff Name Real Time Pricing: Non-Residential Service Day Ahead Hourly Time of Use

  11. Residential Real-time Price Response Simulation

    SciTech Connect (OSTI)

    Widergren, Steven E.; Subbarao, Krishnappa; Chassin, David P.; Fuller, Jason C.; Pratt, Robert G.

    2011-10-10T23:59:59.000Z

    The electric industry is gaining experience with innovative price responsive demand pilots and limited roll-outs to customers. One of these pilots is investigating real-time pricing signals to engage end-use systems and local distributed generation and storage in a distributed optimization process. Attractive aspects about the approach include strong scalability characteristics, simplified interfaces between automation devices, and the adaptability to integrate a wide variety of devices and systems. Experience in this nascent field is revealing a rich array of for engineering decisions and the application of complexity theory. To test the decisions, computer simulations are used to reveal insights about design, demand elasticity, and the limits of response (including consumer fatigue). Agent-based approaches lend themselves well in the simulation to modeling the participation and interaction of each piece of equipment on a distribution feeder. This paper discusses rate design and simulation experiences at the distribution feeder level where consumers and their HVAC systems and water heaters on a feeder receive real-time pricing signals.

  12. Looking at Transistor Gate Oxide Formation in Real Time

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

    Gate Oxide Formation in Real Time Looking at Transistor Gate Oxide Formation in Real Time Print Wednesday, 25 June 2008 00:00 The oxide gate layer is critical to every transistor,...

  13. Ames Lab 101: Real-Time 3D Imaging

    ScienceCinema (OSTI)

    Zhang, Song

    2012-08-29T23:59:59.000Z

    Ames Laboratory scientist Song Zhang explains his real-time 3-D imaging technology. The technique can be used to create high-resolution, real-time, precise, 3-D images for use in healthcare, security, and entertainment applications.

  14. Fast-paced, real-time multifaceted action Complex battlefield

    E-Print Network [OSTI]

    Ernst, Damien

    for the design of intelligent agents for real-time strategy games Next steps Raphael Fonteneau is a postdoctoral

  15. REAL-TIME NON-PHOTOREALISTIC RENDERING TECHNIQUES

    E-Print Network [OSTI]

    Weske, Mathias

    REAL-TIME NON-PHOTOREALISTIC RENDERING TECHNIQUES FOR ILLUSTRATING 3D SCENES AND THEIR DYNAMICS This thesis addresses real-time non-photorealistic rendering techniques and their applications in interactive visualization. Real-time rendering has emerged as an important discipline within computer graphics developing

  16. REAL TIME DATA FOR REMEDIATION ACTIVITIES [11505

    SciTech Connect (OSTI)

    BROCK CT

    2011-01-13T23:59:59.000Z

    Health physicists from the CH2M HILL Plateau Remediation Company collaborated with Berkeley Nucleonics Corporation to modify the SAM 940 isotope identifier instrument to be used for nuclear waste remediation. These modifications coupled with existing capabilities of the SAM 940 have proven to be invaluable during remediation activities, reducing disposal costs by allowing swift remediation of targeted areas that have been identified as having isotopes of concern (IOC), and eliminating multiple visits to sites by declaring an excavation site clear of IOCs before demobilizing from the site. These advantages are enabled by accumulating spectral data for specific isotopes that is nearly 100 percent free of false positives, which are filtered out in 'real time.'

  17. Real time speech formant analyzer and display

    DOE Patents [OSTI]

    Holland, G.E.; Struve, W.S.; Homer, J.F.

    1987-02-03T23:59:59.000Z

    A speech analyzer for interpretation of sound includes a sound input which converts the sound into a signal representing the sound. The signal is passed through a plurality of frequency pass filters to derive a plurality of frequency formants. These formants are converted to voltage signals by frequency-to-voltage converters and then are prepared for visual display in continuous real time. Parameters from the inputted sound are also derived and displayed. The display may then be interpreted by the user. The preferred embodiment includes a microprocessor which is interfaced with a television set for displaying of the sound formants. The microprocessor software enables the sound analyzer to present a variety of display modes for interpretive and therapeutic used by the user. 19 figs.

  18. Monitoring and Evaluation of Smolt Migration in the Columbia Basin, Volume XIV; Evaluation of 2006 Prediction of the Run-Timing of Wild and Hatchery-Reared Salmon and Steelhead at Rock Island, Lower Granite, McNary, John Day and Bonneville Dams using Program Real Time, Technical Report 2006.

    SciTech Connect (OSTI)

    Griswold, Jim

    2007-01-01T23:59:59.000Z

    Program RealTime provided monitoring and forecasting of the 2006 inseason outmigrations via the internet for 32 PIT-tagged stocks of wild ESU chinook salmon and steelhead to Lower Granite and/or McNary dams, one PIT-tagged hatchery-reared ESU of sockeye salmon to Lower Granite Dam, and 20 passage-indexed runs-at-large, five each to Rock Island, McNary, John Day, and Bonneville Dams. Twenty-four stocks are of wild yearling chinook salmon which were captured, PIT-tagged, and released at sites above Lower Granite Dam in 2006, and have at least one year's historical migration data previous to the 2006 migration. These stocks originate in drainages of the Salmon, Grande Ronde and Clearwater Rivers, all tributaries to the Snake River, and are subsequently detected through the tag identification and monitored at Lower Granite Dam. In addition, seven wild PIT-tagged runs-at-large of Snake or Upper Columbia River ESU salmon and steelhead were monitored at McNary Dam. Three wild PIT-tagged runs-at-large were monitored at Lower Granite Dam, consisting of the yearling and subyearling chinook salmon and the steelhead trout runs. The hatchery-reared PIT-tagged sockeye salmon stock from Redfish Lake was monitored outmigrating through Lower Granite Dam. Passage-indexed stocks (stocks monitored by FPC passage indices) included combined wild and hatchery runs-at-large of subyearling and yearling chinook, coho, and sockeye salmon, and steelhead trout forecasted to Rock Island, McNary, John Day, and Bonneville Dams.

  19. Monitoring and Evaluation of Smolt Migration in the Columbia Basin : Volume XV : Evaluation of the 2007 Predictions of the Run-Timing of Wild and Hatchery-Reared Salmon and Steelhead Smolts to Rock Island, Lower Granite, McNary, John Day, and Bonneville Dams using Program RealTime.

    SciTech Connect (OSTI)

    Griswold, Jim; Townsend, Richard L.; Skalski, John R.

    2008-12-01T23:59:59.000Z

    Program RealTime provided monitoring and forecasting of the 2007 inseason outmigrations via the internet for 26 PIT-tagged stocks of wild ESU Chinook salmon and steelhead to Lower Granite and/or McNary dams, one PIT-tagged hatchery-reared ESU of sockeye salmon to Lower Granite Dam, one PIT-tagged wild stock of sockeye salmon to McNary Dam, and 20 passage-indexed runs-at-large, five each to Rock Island, McNary, John Day, and Bonneville dams. Nineteen stocks are of wild yearling Chinook salmon which were captured, PIT-tagged, and released at sites above Lower Granite Dam in 2007 and have at least one year's historical migration data previous to the 2007 migration. These stocks originate in 19 tributaries of the Salmon, Grande Ronde and Clearwater Rivers, all tributaries to the Snake River, and are subsequently detected through tag identification and monitored at Lower Granite Dam. Seven wild PIT-tagged runs-at-large of Snake or Upper Columbia River ESU salmon and steelhead were monitored at McNary Dam. Three wild PIT-tagged runs-at-large were monitored at Lower Granite Dam, consisting of the yearling and subyearling Chinook salmon and the steelhead runs. The hatchery-reared PIT-tagged sockeye salmon stock from Redfish Lake was monitored outmigrating through Lower Granite Dam. Passage-indexed stocks (stocks monitored by FPC passage indices) included combined wild and hatchery runs-at-large of subyearling and yearling Chinook, coho, and sockeye salmon, and steelhead forecasted to Rock Island, McNary, John Day, and Bonneville dams.

  20. Monash University AUSTRALIA 1A Real Time DSP Sonar Echo Processor -IROS'2000 A Real Time DSP Sonar Echo

    E-Print Network [OSTI]

    Monash University AUSTRALIA 1A Real Time DSP Sonar Echo Processor - IROS'2000 A Real Time DSP Sonar of Electrical and Computer Systems Engineering Monash University, Victoria, AUSTRALIA www.ecse.monash.edu.au/centres/IRRC # Funded by an Australian Research Council Large Grant #12;Monash University AUSTRALIA 2A Real Time DSP

  1. Feedback Control RealTime Scheduling: Framework, Modeling, and Algorithms *

    E-Print Network [OSTI]

    Son, Sang H.

    1 Feedback Control Real­Time Scheduling: Framework, Modeling, and Algorithms * Chenyang Lu John A}@virginia.edu Abstract This paper presents a feedback control real­time scheduling (FCS) framework for adaptive real. In particular, we establish a dynamic model and performance analysis of several feedback control scheduling

  2. Feedback Control Real-Time Scheduling: Framework, Modeling, and Algorithms*

    E-Print Network [OSTI]

    Son, Sang H.

    1 Feedback Control Real-Time Scheduling: Framework, Modeling, and Algorithms* Chenyang Lu John A}@virginia.edu Abstract This paper presents a feedback control real-time scheduling (FCS) framework for adaptive real. In particular, we establish a dynamic model and performance analysis of several feedback control scheduling

  3. ASSESSMENT AND REFINEMENT OF REAL-TIME TRAVEL TIME ALGORITHMS FOR USE IN PRACTICE

    E-Print Network [OSTI]

    Bertini, Robert L.

    ASSESSMENT AND REFINEMENT OF REAL-TIME TRAVEL TIME ALGORITHMS FOR USE IN PRACTICE Final Report AND REFINEMENT OF REAL-TIME TRAVEL TIME ALGORITHMS FOR USE IN PRACTICE 5. Report Date June 2007 Final Report 6

  4. A Real-Time Decision Support System for High Cost Oil-Well Drilling Operations

    E-Print Network [OSTI]

    Aamodt, Agnar

    A Real-Time Decision Support System for High Cost Oil-Well Drilling Operations Odd Erik Gundersen In this paper we present DrillEdge - a commercial and award winning software system that monitors oil-well drilling operations in order to reduce non-productive time (NPT). DrillEdge utilizes case-based reasoning

  5. ASSESSMENT AND REFINEMENT OF REAL-TIME TRAVEL TIME ALGORITHMS FOR USE

    E-Print Network [OSTI]

    Bertini, Robert L.

    ASSESSMENT AND REFINEMENT OF REAL- TIME TRAVEL TIME ALGORITHMS FOR USE IN PRACTICE (OTREC PHASE I) Final Report #12;#12;ASSESSMENT AND REFINEMENT OF REAL-TIME TRAVEL TIME ALGORITHMS FOR USE IN PRACTICE ASSESSMENT AND REFINEMENT OF REAL-TIME TRAVEL TIME ALGORITHMS FOR USE IN PRACTICE (OTREC PHASE 1) 5. Report

  6. REAL TIME SYSTEM OPERATIONS 2006-2007

    E-Print Network [OSTI]

    Eto, Joseph H.

    2008-01-01T23:59:59.000Z

    SCE, WAPA, PG&E Data PDC PI Interface frequency dataIntegration of CA ISO PDC with Arbiters California Real-Timeandend?userfeedback. PDCtoPIinterfaceforPhasor

  7. Real-time neural network earthquake profile predictor

    DOE Patents [OSTI]

    Leach, Richard R. (Castro Valley, CA); Dowla, Farid U. (Castro Valley, CA)

    1996-01-01T23:59:59.000Z

    A neural network has been developed that uses first-arrival energy to predict the characteristics of impending earthquake seismograph signals. The propagation of ground motion energy through the earth is a highly nonlinear function. This is due to different forms of ground motion as well as to changes in the elastic properties of the media throughout the propagation path. The neural network is trained using seismogram data from earthquakes. Presented with a previously unseen earthquake, the neural network produces a profile of the complete earthquake signal using data from the first seconds of the signal. This offers a significant advance in the real-time monitoring, warning, and subsequent hazard minimization of catastrophic ground motion.

  8. Real-time neural network earthquake profile predictor

    DOE Patents [OSTI]

    Leach, R.R.; Dowla, F.U.

    1996-02-06T23:59:59.000Z

    A neural network has been developed that uses first-arrival energy to predict the characteristics of impending earthquake seismograph signals. The propagation of ground motion energy through the earth is a highly nonlinear function. This is due to different forms of ground motion as well as to changes in the elastic properties of the media throughout the propagation path. The neural network is trained using seismogram data from earthquakes. Presented with a previously unseen earthquake, the neural network produces a profile of the complete earthquake signal using data from the first seconds of the signal. This offers a significant advance in the real-time monitoring, warning, and subsequent hazard minimization of catastrophic ground motion. 17 figs.

  9. Real time density functional simulations of quantum scale conductance

    E-Print Network [OSTI]

    Evans, Jeremy Scott

    2009-01-01T23:59:59.000Z

    We study electronic conductance through single molecules by subjecting a molecular junction to a time dependent potential and propagating the electronic state in real time using time-dependent density functional theory ...

  10. Real-Time Pricing of Electricity: An Assessment

    E-Print Network [OSTI]

    Baughman, M. L.; Zarnikau, J.

    . This paper reviews one of these new rate design proposals, "spot market" or "real-time" pricing, and discusses some recent implementations in Texas....

  11. USB Interfacing and Real Time Data Plotting with MATLAB

    E-Print Network [OSTI]

    Ashrafi, Ashkan

    USB Interfacing and Real Time Data Plotting with MATLAB Department of Electrical and Computer................................................................................................................................3 MATLAB Programming....................................................................................................................................................6 MATLAB Realtime Plot Code

  12. A Framework for Real-Time Service-Oriented Architecture

    E-Print Network [OSTI]

    Panahi, Mark; Nie, Weiran; Lin, Kwei-Jay

    2009-01-01T23:59:59.000Z

    and reasoning in service-oriented architectures, Journal offor Real-Time Service-Oriented Architecture Mark Panahi,AbstractService-oriented architectures (SOA), though widely

  13. Optimization Online - Stochastic Real-Time Scheduling of Wind ...

    E-Print Network [OSTI]

    Alireza Soroudi

    2015-01-03T23:59:59.000Z

    Jan 3, 2015 ... Stochastic Real-Time Scheduling of Wind-thermal Generation Units in an Electric Utility. Alireza Soroudi (alireza.soroudi ***at*** ucd.ie)

  14. Real-Time Optimization Strategies for Building Systems

    E-Print Network [OSTI]

    2011-09-02T23:59:59.000Z

    Our analysis indicates that it is possible to obtain energy savings of more ... building-wide, proactive, optimization, real-time, electricity markets, energy man-.

  15. DOE Announces Webinars on Real Time Energy Management, Solar...

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

    typically required. You can also watch archived webinars and browse previously aired videos, slides, and transcripts. Upcoming Webinars February 4: Live Webinar on Real Time...

  16. Optimization Online - Real-Time Dispatchability of Bulk Power ...

    E-Print Network [OSTI]

    Wei Wei

    2015-03-16T23:59:59.000Z

    Mar 16, 2015 ... Real-Time Dispatchability of Bulk Power Systems with Volatile Renewable Generations. Wei Wei (wei-wei04 ***at*** mails.tsinghua.edu.cn)

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

    E-Print Network [OSTI]

    Jeng, Shin-Ting

    2007-01-01T23:59:59.000Z

    Tok, A. (2005). Anonymous Vehicle Tracking for Real-timeField Investigation of Advanced Vehicle Reidentificationvariance, land changing, and vehicle heterogeneity. In:

  18. Predicting Time-Delays under Real-Time Scheduling for Linear Model Predictive Control

    E-Print Network [OSTI]

    Zhang, Fumin

    Predicting Time-Delays under Real-Time Scheduling for Linear Model Predictive Control Zhenwu Shi prediction of time-delays caused by real-time scheduling. Then, a model predictive controller is designed, the interaction between real-time scheduling and control design has received interest in the literature

  19. REAL-TIME DATA SERVICES MANAGEMENT TRANSPORTATION

    E-Print Network [OSTI]

    Fisher, Kathleen

    · Monitor tank levels (liquid, solid, gas) · Mesh networks · Automatic refill · Fleet integration · Flow, level, proximity sensors · Waste flow disposal Chemical Tanks4 · PositiveTrain Control · Wayside management ASSET MANAGEMENT Agriculture · Oil flow · Well pressure · Status of pump · Remote Maintenance

  20. Real-time Remote Sensing of Snowmobiles Emissions at

    E-Print Network [OSTI]

    Denver, University of

    Real-time Remote Sensing of Snowmobiles Emissions at Yellowstone National Park: An Oxygenated Fuel 68509 #12;Real-time Remote Sensing of Snowmobile Emissions at Yellowstone National Park 2 Executive emissions from snowmobiles. Ratios of CO, HC and toluene to CO2 were measured and used to calculate %CO, %HC

  1. A REAL-TIME ASSIMILATION ALGORITHM APPLIED ON

    E-Print Network [OSTI]

    Malmberg, Anders

    to the forecast information since satellite data on a close to real-time basis provide detailed information to an extreme weather area. The satellite data indicated some severe weather conditions while the forecast did the assimilation in real-time in contrast to methods where data are assembled in batches and are as- similated

  2. NSTX Real-Time Control GUI User's Guide

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    the use of the Power Supply Real-Time Control (PSRTC) Graphical User Interface (GUI), shown below. AsideNSTX Real-Time Control GUI User's Guide March 28, 2008 #12;This document is meant to describe from the PCS, the NSTX control system is made up of several executables/applications that each function

  3. Utility Accrual Real-Time Scheduling for Multiprocessor Embedded Systems

    E-Print Network [OSTI]

    Ravindran, Binoy

    Utility Accrual Real-Time Scheduling for Multiprocessor Embedded Systems Hyeonjoong Cho a Binoy We present the first Utility Accrual (or UA) real-time scheduling algorithm for mul- tiprocessors, called global Multiprocessor Utility Accrual scheduling algorithm (or gMUA). The algorithm considers

  4. Towards a Real-Time Cluster Computing Infrastructure

    SciTech Connect (OSTI)

    Hui, Peter SY; Chikkagoudar, Satish; Chavarra-Miranda, Daniel; Johnston, Mark R.

    2011-11-01T23:59:59.000Z

    Real-time computing has traditionally been considered largely in the context of single-processor and embedded systems, and indeed, the terms real-time computing, embedded systems, and control systems are often mentioned in closely related contexts. However, real-time computing in the context of multinode systems, specifically high-performance, cluster-computing systems, remains relatively unexplored, largely due to the fact that until now, there has not been a need for such an environment. In this paper, we motivate the need for a cluster computing infrastructure capable of supporting computation over large datasets in real-time. Our motivating example is an analytical framework to support the next generation North American power grid, which is growing both in size and complexity. With streaming sensor data in the future power grid potentially reaching rates on the order of terabytes per day, the task of analyzing this data subject to real-time guarantees becomes a daunting task which will require the power of high-performance cluster computing capable of functioning under real-time constraints. One specific challenge that such an environment presents is the need for real-time networked communication between cluster nodes. In this paper, we discuss the need for real-time high-performance cluster computation, along with our work-in-progress towards an infrastructure which will ultimately enable such an environment.

  5. Realistic Rendering of an Organ Surface in Real-Time

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Realistic Rendering of an Organ Surface in Real-Time for Laparoscopic Surgery Simulation Raphal : 10.1007/s003710100118 #12;Abstract This paper deals with the rendering issues of the problem. To meet the real-time constraint we use advanced graphics features such as multi- pass rendering, Open

  6. Demonstration of Real-time Spectrum Sensing for Cognitive Radio

    E-Print Network [OSTI]

    Qiu, Robert Caiming

    Demonstration of Real-time Spectrum Sensing for Cognitive Radio Zhe Chen, Nan Guo, and Robert C sensing detects the availability of the radio frequency spectrum in a real-time fashion, which is essen Cognitive radio (CR) has been put forward to make effi- cient use of scarce radio frequency spectrum

  7. Groupware for Real-Time Drawing: A Designer's Guide

    E-Print Network [OSTI]

    Greenberg, Saul

    Groupware for Real-Time Drawing: A Designer's Guide Saul Greenberg Stephen Hayne Roy Rada Cite as: Greenberg, S., Hayne, S., and Rada, R., eds (1995). Groupware for Real-Time Drawing: A Designer's Guide. 248 (Wolf, Rhyne, Briggs) 6. Integration of interpersonal space and shared workspace: ClearBoard design

  8. Real Time Flux Control in PM Motors

    SciTech Connect (OSTI)

    Otaduy, P.J.

    2005-09-27T23:59:59.000Z

    Significant research at the Oak Ridge National Laboratory (ORNL) Power Electronics and Electric Machinery Research Center (PEEMRC) is being conducted to develop ways to increase (1) torque, (2) speed range, and (3) efficiency of traction electric motors for hybrid electric vehicles (HEV) within existing current and voltage bounds. Current is limited by the inverter semiconductor devices' capability and voltage is limited by the stator wire insulation's ability to withstand the maximum back-electromotive force (emf), which occurs at the upper end of the speed range. One research track has been to explore ways to control the path and magnitude of magnetic flux while the motor is operating. The phrase, real time flux control (RTFC), refers to this mode of operation in which system parameters are changed while the motor is operating to improve its performance and speed range. RTFC has potential to meet an increased torque demand by introducing additional flux through the main air gap from an external source. It can augment the speed range by diverting flux away from the main air gap to reduce back-emf at high speeds. Conventional RTFC technology is known as vector control [1]. Vector control decomposes the stator current into two components; one that produces torque and a second that opposes (weakens) the magnetic field generated by the rotor, thereby requiring more overall stator current and reducing the efficiency. Efficiency can be improved by selecting a RTFC method that reduces the back-emf without increasing the average current. This favors methods that use pulse currents or very low currents to achieve field weakening. Foremost in ORNL's effort to develop flux control is the work of J. S. Hsu. Early research [2,3] introduced direct control of air-gap flux in permanent magnet (PM) machines and demonstrated it with a flux-controlled generator. The configuration eliminates the problem of demagnetization because it diverts all the flux from the magnets instead of trying to oppose it. It is robust and could be particularly useful for PM generators and electric vehicle drives. Recent efforts have introduced a brushless machine that transfers a magneto-motive force (MMF) generated by a stationary excitation coil to the rotor [4]. Although a conventional PM machine may be field weakened using vector control, the air-gap flux density cannot be effectively enhanced. In Hsu's new machine, the magnetic field generated by the rotor's PM may be augmented by the field from the stationery excitation coil and channeled with flux guides to its desired destination to enhance the air-gap flux that produces torque. The magnetic field can also be weakened by reversing the current in the stationary excitation winding. A patent for advanced technology in this area is pending. Several additional RTFC methods have been discussed in open literature. These include methods of changing the number of poles by magnetizing and demagnetizing the magnets poles with pulses of current corresponding to direct-axis (d-axis) current of vector control [5,6], changing the number of stator coils [7], and controlling the air gap [8]. Test experience has shown that the magnet strengths may vary and weaken naturally as rotor temperature increases suggesting that careful control of the rotor temperature, which is no easy task, could yield another method of RTFC. The purpose of this report is to (1) examine the interaction of rotor and stator flux with regard to RTFC, (2) review and summarize the status of RTFC technology, and (3) compare and evaluate methods for RTFC with respect to maturity, advantages and limitations, deployment difficulty and relative complexity.

  9. Energy Efficient Scheduling for Real-Time Systems

    E-Print Network [OSTI]

    Gupta, Nikhil

    2012-02-14T23:59:59.000Z

    , temperature awareness of a real-time system can be improved while considering variation of task execution times to reduce energy consumption. This thesis is established through research in a number of directions. First, we explore the applicability of Dynamic...

  10. COMPUTER-VIDEO METHOD EVALUATES REAL MOTION DATA IN REAL TIME FOR STUDENTS

    E-Print Network [OSTI]

    Zollman, Dean

    COMPUTER-VIDEO METHOD EVALUATES REAL MOTION DATA IN REAL TIME FOR STUDENTS Roman Dengler, Karl dimension. These devices, however, are·normally limited to one dimension. The video camera, on the other of information recorded by the video camera into useable, digital information. For this purpose, we devised

  11. Integrating Security and Real-Time Requirements Using Covert

    E-Print Network [OSTI]

    Son, Sang H.

    ÐConcurrency control, covert channel analysis, database systems, locking protocols, multilevel security, real secure database systems use an access control mechanism based on the Bell- LaPadula model [3]. This model. Multilevel security requirements introduce a new dimension to transaction processing in real-time database

  12. Real-Time Traffic Information for Emergency Evacuation Operations

    E-Print Network [OSTI]

    Real-Time Traffic Information for Emergency Evacuation Operations Research Brief Oak Ridge National Environment Safety Security Vehicle Technologies T here are many instances in which it is possible to plan. The system of sensors will transmit through satellite links, or other robust communication means, real

  13. Toward natural interaction in the real world: real-time gesture recognition

    E-Print Network [OSTI]

    Yin, Ying

    Using a new hand tracking technology capable of tracking 3D hand postures in real-time, we developed a recognition system for continuous natural gestures. By natural gestures, we mean those encountered in spontaneous ...

  14. Managing Contention and Timing Constraints in a RealTime Database System \\Lambda

    E-Print Network [OSTI]

    Son, Sang H.

    22903, USA Abstract Previous work in real­time database management systems (RT­DBMS) has primarily based an actual RT­ DBMS on a real­time microkernel operating system. A real RT­DBMS must confront many practical of con­ structing a RT­DBMS is divided into three basic prob­ lems: dealing with resource contention

  15. Volatility of Power Grids Under Real-Time Pricing

    E-Print Network [OSTI]

    Roozbehani, Mardavij

    The paper proposes a framework for modeling and analysis of the dynamics of supply, demand, and clearing prices in power systems with real-time retail pricing and information asymmetry. Characterized by passing on the ...

  16. Looking at Transistor Gate Oxide Formation in Real Time

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

    Looking at Transistor Gate Oxide Formation in Real Time Print The oxide gate layer is critical to every transistor, and present-day layer thicknesses are in the 10-20 range (1-2...

  17. ccsd00001825, Development of Real Time Diagnostics and

    E-Print Network [OSTI]

    developed to allow a more robust control of several plasma parameters. Both diagnostics and algorithms were on plasma diagnostics. ccsd­00001825, version 2 ­ 19 Oct 2004 Development of Real Time Diagnostics and Feedback Algorithms

  18. Real time observations of the nucleation and growth of nanowires...

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

    Real time observations of the nucleation and growth of nanowires and nanotubes December 1, 2011 at 3pm36-428 Eric Stach Center for Functional Nanomaterials, Brookhaven National...

  19. 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.

  20. GPU programming for real-time watercolor simulation

    E-Print Network [OSTI]

    Scott, Jessica Stacy

    2005-02-17T23:59:59.000Z

    simulated watercolors in real time. The GPU, or Graphics Processing Unit, is an effcient and highly parallel processor located on the graphics card of a computer; GPU programming is touted as a way to improve performance in graphics and non...

  1. Artificial Intelligence Design for Real-time Strategy Games

    E-Print Network [OSTI]

    Ernst, Damien

    of the paper. 1 Introduction The real-time strategy (RTS) video game genre began to appear roughly two decades , one of the best-selling video games and now an acknowledged reference, cemented RTS in the industry

  2. Real-time state estimation of laboratory flows

    E-Print Network [OSTI]

    Stransky, Scott (Scott M.)

    2007-01-01T23:59:59.000Z

    In this project, we use a real time computer model to simulate a differentially heated laboratory annulus. The laboratory annulus allows us to study chaotic flows typical of the atmosphere. Our objective is to bring the ...

  3. Scheduling of real-time communication network for parallel processing

    E-Print Network [OSTI]

    Li, Hung

    2012-06-07T23:59:59.000Z

    very attractive for the next generation real-time systems. How to support realtime communication on the massively parallel computers becomes an important issue. This project focuses on wormhole networks of Paragon, and study different transmission...

  4. IT Licentiate theses Practical Verification of Real-Time Systems

    E-Print Network [OSTI]

    David, Alexandre

    IT Licentiate theses 2001-013 Practical Verification of Real-Time Systems ALEXANDRE DAVID UPPSALA UPPSALA SWEDEN Dissertation for the degree of Licentiate of Philosophy in Computer Science at Uppsala

  5. IT Licentiate theses Practical Verification of RealTime Systems

    E-Print Network [OSTI]

    David, Alexandre

    IT Licentiate theses 2001013 Practical Verification of RealTime Systems ALEXANDRE DAVID UPPSALA UPPSALA SWEDEN Dissertation for the degree of Licentiate of Philosophy in Computer Science at Uppsala

  6. A practical acceleration algorithm for real-time imaging

    E-Print Network [OSTI]

    Sumbul, Uygar

    A practical acceleration algorithm for real-time magnetic resonance imaging (MRI) is presented. Neither separate training scans nor embedded training samples are used. The Kalman filter based algorithm provides a fast and ...

  7. Real-time Water Waves with Wave Particles

    E-Print Network [OSTI]

    Yuksel, Cem

    2010-10-12T23:59:59.000Z

    This dissertation describes the wave particles technique for simulating water surface waves and two way fluid-object interactions for real-time applications, such as video games. Water exists in various different forms in our environment...

  8. Repsol Cartagena Utilities Real Time Optimization -- A Success Story

    E-Print Network [OSTI]

    Piccolo, M.; Shyr, S.

    Repsol Cartagena Utilities Real Time Optimization - A Success Story Mike Piccolo and Steve Shyr, Honeywell, and TBD, Repsol, Spain In 1998 Honeywell Hi-Spec Solutions successfully implemented a Utilities Optimization system at Repsol' s Cartagena...

  9. Real-time continuous gesture recognition for natural multimodal interaction

    E-Print Network [OSTI]

    Yin, Ying, Ph. D. Massachusetts Institute of Technology

    2014-01-01T23:59:59.000Z

    I have developed a real-time continuous gesture recognition system capable of dealing with two important problems that have previously been neglected: (a) smoothly handling two different kinds of gestures: those characterized ...

  10. PROTECTING INFRASTRUCTURE ASSETS FROM REAL-TIME

    E-Print Network [OSTI]

    Burmester, Mike

    be used to protect communications of an IEC61850-90-5-compliant substation automation system in an electricity grid. Also, it discusses the impact of run-time attacks on TC-compliant critical infrastructure The Stuxnet worm has demonstrated the effectiveness of cyber attacks on industrial facilities. The potentially

  11. Compilation and Synthesis for RealTime Embedded Controllers

    E-Print Network [OSTI]

    Compilation and Synthesis for Real­Time Embedded Controllers Martin Fr?anzle 1 and Markus M?uller­Olm.Fraenzle@Informatik.Uni­Oldenburg.DE 2 University of Dortmund, Department of Computer Science, FB 4, LS 5, 44221 Dortmund, Germany Markus.Mueller­Olm?anzle and Markus M?uller­Olm non­digital nature, i.e. these systems belong to the class of real­time embedded

  12. High speed, real-time, camera bandwidth converter

    DOE Patents [OSTI]

    Bower, Dan E; Bloom, David A; Curry, James R

    2014-10-21T23:59:59.000Z

    Image data from a CMOS sensor with 10 bit resolution is reformatted in real time to allow the data to stream through communications equipment that is designed to transport data with 8 bit resolution. The incoming image data has 10 bit resolution. The communication equipment can transport image data with 8 bit resolution. Image data with 10 bit resolution is transmitted in real-time, without a frame delay, through the communication equipment by reformatting the image data.

  13. Real-time airborne particle analyzer

    DOE Patents [OSTI]

    Reilly, Peter T.A.

    2012-10-16T23:59:59.000Z

    An aerosol particle analyzer includes a laser ablation chamber, a gas-filled conduit, and a mass spectrometer. The laser ablation chamber can be operated at a low pressure, which can be from 0.1 mTorr to 30 mTorr. The ablated ions are transferred into a gas-filled conduit. The gas-filled conduit reduces the electrical charge and the speed of ablated ions as they collide and mix with buffer gases in the gas-filled conduit. Preferably, the gas filled-conduit includes an electromagnetic multipole structure that collimates the nascent ions into a beam, which is guided into the mass spectrometer. Because the gas-filled conduit allows storage of vast quantities of the ions from the ablated particles, the ions from a single ablated particle can be analyzed multiple times and by a variety of techniques to supply statistically meaningful analysis of composition and isotope ratios.

  14. Real-Time Building Energy Simulation Using EnergyPlus and the Building Controls Test Bed

    E-Print Network [OSTI]

    Pang, Xiufeng

    2013-01-01T23:59:59.000Z

    Figure 9 Lighting electric power comparison between real-measurement Lighting Electric Power Comparison kW real-time

  15. Approximate Response Time for Fixed Priority Real-Time Systems with Energy-Harvesting

    E-Print Network [OSTI]

    Boyer, Edmond

    Approximate Response Time for Fixed Priority Real-Time Systems with Energy-Harvesting Yasmina sufficient schedulability tests for fixed-priority pre-emptive scheduling of a real-time system under energy constraints. In this problem, energy is harvested from the ambient environment and used to replenish a storage

  16. Real Time Dynamic Fracture with Volumetric Approximate Convex Decompositions

    E-Print Network [OSTI]

    Müller-Fischer, Matthias

    ¨uller Nuttapong Chentanez Tae-Yong Kim NVIDIA Figure 1: Destruction of a Roman arena with 1m vertices and 500k and complex objects in real time. The common method for fracture simulation in computer games is to pre-fracture models and replace objects by their pre-computed parts at run-time. This popular method

  17. Real-Time Networked Control with Multiple Clients

    E-Print Network [OSTI]

    Lee, Minhyung

    2010-01-14T23:59:59.000Z

    in this research due to its better real-time performance instead of transmission control protocol (TCP). Although UDP has no guarantee for transferring data, it has smaller overheads and less time delay than TCP. Since the robotic wheelchair and the server are run...

  18. Toward Real Time Data Analysis for Smart Grids

    SciTech Connect (OSTI)

    Yin, Jian; Gorton, Ian; Sharma, Poorva

    2012-11-10T23:59:59.000Z

    This paper describes the architecture and design of a novel system for supporting large-scale real-time data analysis for future power grid systems. The widespread deployment of renewable generation, smart grid controls, energy storage, plug-in hybrids, and new conducting materials will require fundamental changes in the operational concepts and principal components of the grid. As a result, the whole system becomes highly dynamic and requires constant adjusting based on real time data. Even though millions of sensors such as phase measurement units (PMU) and smart meters are being widely deployed, a data layer that can analyze this amount of data in real time is needed. Unlike the data fabric in other cloud services, the data layer for smart grids has some unique design requirements. First, this layer must provide real time guarantees. Second, this layer must be scalable to allow a large number of applications to access the data from millions of sensors in real time. Third, reliability is critical and this layer must be able to continue to provide service in face of failures. Fourth, this layer must be secure. We address these challenges though a scalable system architecture that integrates the I/O and data processing capability in a devise set of devices. Data process operations can be placed anywhere from sensors, data storage devices, to control centers. We further employ compression to improve performance. We design a lightweight compression customized for power grid data. Our system can reduce end-to-end response time by reduce I/O overhead through compression and overlap compression operations with I/O. The initial prototype of our system was demonstrated with several use cases from PNNLs FPGI and show that our system can provide real time guarantees to a diverse set of applications.

  19. Real-Time Control with Parametric Timed Reachability Games

    E-Print Network [OSTI]

    Boyer, Edmond

    for which the existence of a parameter valuation, such that there is a strategy for the controller to reach set of parameter valuations. Keywords: Timed automata, game theory, parameters, control, verification, model-checking 1. INTRODUCTION Formal methods are widely used in the analysis of time critical systems

  20. Parallel architecture for real-time simulation. Master's thesis

    SciTech Connect (OSTI)

    Cockrell, C.D.

    1989-01-01T23:59:59.000Z

    This thesis is concerned with the development of a very fast and highly efficient parallel computer architecture for real-time simulation of continuous systems. Currently, several parallel processing systems exist that may be capable of executing a complex simulation in real-time. These systems are examined and the pros and cons of each system discussed. The thesis then introduced a custom-designed parallel architecture based upon The University of Alabama's OPERA architecture. Each component of this system is discussed and rationale presented for its selection. The problem selected, real-time simulation of the Space Shuttle Main Engine for the test and evaluation of the proposed architecture, is explored, identifying the areas where parallelism can be exploited and parallel processing applied. Results from the test and evaluation phase are presented and compared with the results of the same problem that has been processed on a uniprocessor system.

  1. Test applications for heterogeneous real-time network testbed

    SciTech Connect (OSTI)

    Mines, R.F.; Knightly, E.W.

    1994-07-01T23:59:59.000Z

    This paper investigates several applications for a heterogeneous real-time network testbed. The network is heterogeneous in terms of network devices, technologies, protocols, and algorithms. The network is real-time in that its services can provide per-connection end-to-end performance guarantees. Although different parts of the network use different algorithms, all components have the necessary mechanisms to provide performance guarantees: admission control and priority scheduling. Three applications for this network are described in this paper: a video conferencing tool, a tool for combustion modeling using distributed computing, and an MPEG video archival system. Each has minimum performance requirements that must be provided by the network. By analyzing these applications, we provide insights to the traffic characteristics and performance requirements of practical real-time loads.

  2. Handheld portable real-time tracking and communications device

    DOE Patents [OSTI]

    Wiseman, James M. (Albuquerque, NM); Riblett, Jr., Loren E. (Edgewood, NM); Green, Karl L. (Albuquerque, NM); Hunter, John A. (Albuquerque, NM); Cook, III, Robert N. (Rio Rancho, NM); Stevens, James R. (Arlington, VA)

    2012-05-22T23:59:59.000Z

    Portable handheld real-time tracking and communications devices include; a controller module, communications module including global positioning and mesh network radio module, data transfer and storage module, and a user interface module enclosed in a water-resistant enclosure. Real-time tracking and communications devices can be used by protective force, security and first responder personnel to provide situational awareness allowing for enhance coordination and effectiveness in rapid response situations. Such devices communicate to other authorized devices via mobile ad-hoc wireless networks, and do not require fixed infrastructure for their operation.

  3. Integration of Real-Time Data Into Building Automation Systems

    SciTech Connect (OSTI)

    Mark J. Stunder; Perry Sebastian; Brenda A. Chube; Michael D. Koontz

    2003-04-16T23:59:59.000Z

    The project goal was to investigate the possibility of using predictive real-time information from the Internet as an input to building management system algorithms. The objectives were to identify the types of information most valuable to commercial and residential building owners, managers, and system designers. To comprehensively investigate and document currently available electronic real-time information suitable for use in building management systems. Verify the reliability of the information and recommend accreditation methods for data and providers. Assess methodologies to automatically retrieve and utilize the information. Characterize equipment required to implement automated integration. Demonstrate the feasibility and benefits of using the information in building management systems. Identify evolutionary control strategies.

  4. A heterogeneous hierarchical architecture for real-time computing

    SciTech Connect (OSTI)

    Skroch, D.A.; Fornaro, R.J.

    1988-12-01T23:59:59.000Z

    The need for high-speed data acquisition and control algorithms has prompted continued research in the area of multiprocessor systems and related programming techniques. The result presented here is a unique hardware and software architecture for high-speed real-time computer systems. The implementation of a prototype of this architecture has required the integration of architecture, operating systems and programming languages into a cohesive unit. This report describes a Heterogeneous Hierarchial Architecture for Real-Time (H{sup 2} ART) and system software for program loading and interprocessor communication.

  5. Real-Time Chemical Imaging of Bacterial Biofilm Development

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromising Science for1PrincipalRare | NationalReal-TimeReal-Time

  6. Flash Memory Garbage Collection in Hard Real-Time Systems

    E-Print Network [OSTI]

    Lai, Chien-An

    2012-10-19T23:59:59.000Z

    collection and compare it to that of more proactive schemes. I develop formulas to assess the schedulability of hard real- time periodic task sets under simpli ed memory consumption models. Results show that I prove the proactive schemes achieve the larger... work in the area of ash memory management. Moreover, we review the previous research about garbage collection in real-time system. In Chapter III we will describe a simpli ed ash memory model that will be used throughout the rest of the thesis...

  7. A real-time airborne scatterometer data processor

    E-Print Network [OSTI]

    Reisor, Gary James

    1976-01-01T23:59:59.000Z

    Subject: Electrical Fngineering A REAL-TIME AIRBORNE SCATTEROMETER DATA PROCESSOR A Thesis by Gary James Reisor Approved as to style and content by: arrman o Committee Hea o Depa tment em er Mem er August 1976 ABSTRACT A Real-time Airborne...b. Read-Only Memory Uni. 't. III-10a, RAM Unit Block Diagram III-10b. ROM Unit Block Diagram IV-1. Asynch I/O Unit Block Diagram 48 50 50 55 IV-2. Asynchronous Data Requires Start and Stop Bits. 56 IV-3. Format and Status Port Bit...

  8. Real-Time Chemical Imaging of Bacterial Biofilm Development

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298, andEpidermalOxide FuelReal-Time ChemicalReal-Time

  9. E-Print Network 3.0 - abbott real-time ct Sample Search Results

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

    The main challenge involved in scheduling transactions in a Real-Time Data... scheduling and concurrency control techniques. Current real-time concurrency control...

  10. Perspectives on Real-Time Grid Operating Technologies to Manage Reliability in the Western Interconnection

    E-Print Network [OSTI]

    Whitley, Eric

    2014-01-01T23:59:59.000Z

    Real-Time Grid Operating Technologies to Manage ReliabilityEto Environmental Energy Technologies Division October 2013Real-Time Grid Operating Technologies to Manage Reliability

  11. Improving Building Performance at Urban Scale with a Framework for Real-time Data Sharing

    E-Print Network [OSTI]

    Pang, Xiufeng

    2014-01-01T23:59:59.000Z

    Real-time Data Sharing Xiufeng Pang, Tianzhen Hong, Mary AnnReal-time Data Sharing Xiufeng Pang, Tianzhen Hong*, Mary

  12. GENETIC ALGORITHMS APPLIED TO REAL TIME MULTIOBJECTIVE OPTIMIZATION PROBLEMS

    E-Print Network [OSTI]

    Coello, Carlos A. Coello

    of searching for multiple solutions concurrently in a single run. Transforming this multiobjective optimizationGENETIC ALGORITHMS APPLIED TO REAL TIME MULTIOBJECTIVE OPTIMIZATION PROBLEMS Z. BINGUL, A. S@harpo.tnstate.edu ABSTRACT Genetic algorithms are often well suited for multiobjective optimization problems. In this work

  13. Note: A real-time beam current density meter

    SciTech Connect (OSTI)

    Liu Junliang; Yu Deyang; Ruan Fangfang; Xue Yingli; Wang Wei [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China)

    2013-03-15T23:59:59.000Z

    We have developed a real-time beam current density meter for charged particle beams. It measures the mean current density by collimating a uniform and large diameter primary beam. The suppression of the secondary electrons and the deflection of the beam were simulated, and it was tested with a 105 keV Ar{sup 7+} ion beam.

  14. TOWARDS REAL-TIME GENERATION SCHEDULING IN MICROGRIDS WITH

    E-Print Network [OSTI]

    Zhang, Junshan

    TOWARDS REAL-TIME GENERATION SCHEDULING IN MICROGRIDS WITH PERFORMANCE GUARANTEE LIAN LU, JINLONG TU, CHI-KIN CHAU, MINGHUA CHEN, ZHAO XU AND XIAOJUN LIN INTRODUCTION Microgrid is an emerging- generation improves generation efficiency by 2-3x. A key problem in microgrid operations is how to schedule

  15. Timeliness via Speculation for Real-Time Databases Azer Bestavros

    E-Print Network [OSTI]

    extremes. PCC locking protocols detect con icts as soon as they occur and resolve them using blocking. OCC protocols detect con icts at transac- tion committime and resolve them using rollbacks (restarts). For real-time databases, blockages and rollbacks are hazards that increase the likelihood of transactions missing

  16. Real time sensors in geothermal fluids: their costs and benefits

    SciTech Connect (OSTI)

    Jensen, G.A.; Shannon, D.W.; Hazelton, R.F.

    1982-02-01T23:59:59.000Z

    A summary of the PNL effort, a background discussion on geothermal power plants, and a discussion of several cases where problems were identified and in some cases prevented are included. Cost factors, savings, and benefits-costs to the sponsor are summarized and brief conclusions concerning the benefits of having real time instrumentation installed in the power plant are characterized.

  17. Accuracy of near real time updates in wind power forecasting

    E-Print Network [OSTI]

    Heinemann, Detlev

    · advantage: no NWP data necessary ­ very actual shortest term forecasts possible · wind power inputAccuracy of near real time updates in wind power forecasting with regard to different weather October 2007 #12;EMS/ECAM 2007 ­ Nadja Saleck Outline · Study site · Wind power forecasting - method

  18. ENERGY MANAGEMENT REAL-TIME MULTI-TIER INTERNET SERVICES

    E-Print Network [OSTI]

    Skadron, Kevin

    ENERGY MANAGEMENT IN REAL-TIME MULTI-TIER INTERNET SERVICES A Dissertation Presented to the faculty This dissertation has been read and approved by the examining Committee: Kevin Skadron (Advisor) Sudhanva Gurumurthi and Applied Science: James H. Aylor (Dean) May 2008 #12;Abstract Energy management only recently emerged

  19. Compilation and Synthesis for RealTime Embedded Controllers

    E-Print Network [OSTI]

    Müller-Olm, Markus

    Compilation and Synthesis for Real­Time Embedded Controllers Martin Fr?anzle 1 and Markus M?uller­Olm.Fraenzle@Informatik.Uni­Oldenburg.DE 2 University of Dortmund, Department of Computer Science, FB 4, LS 5, 44221 Dortmund, Germany Markus.Mueller­Olm

  20. Compilation and Synthesis for Real-Time Embedded Controllers

    E-Print Network [OSTI]

    Müller-Olm, Markus

    Compilation and Synthesis for Real-Time Embedded Controllers Martin Fr¨anzle1 and Markus M¨uller-Olm.Fraenzle@Informatik.Uni-Oldenburg.DE 2 University of Dortmund, Department of Computer Science, FB 4, LS 5, 44221 Dortmund, Germany Markus.Mueller-Olm

  1. Real Time Emulations: Foundation and Applications Azalia Mirhoseini

    E-Print Network [OSTI]

    developed and used emulations to overcome and complement the shortcomings of simulations for logic verifi Measurement, Performance Keywords Real-time emultion, Thermal modeling 1. INTRODUCTION AND MOTIVATION At large vineyards, there are often several rose bushes planted throughout. The reason is not the romantic nature

  2. Real-Time Scheduling for Energy Harvesting Sensors

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    autonomous sensors to scavenge the energy in the environment. Environmental applications include forest fireReal-Time Scheduling for Energy Harvesting Sensors Maryline Chetto IRCCyN Lab University of Nantes Institut Universitaire de Technologie - Saida E-mail: rafichagechehade@ul.edu.lb Abstract-- Energy

  3. Real-time MISO UWB Radio Testbed and Waveform Design

    E-Print Network [OSTI]

    Qiu, Robert Caiming

    Real-time MISO UWB Radio Testbed and Waveform Design Yu Song, Zhen Hu, Nan Guo, and Robert C. Qiu-input single-output (MISO) ultra-wideband (UWB) radio testbed, which involves Xinlix Virtex-5 Field in indoor environment. The transmitted MISO signals are optimized in the passband with a bandwidth up to 500

  4. Closed-loop real-time control on distributed networks

    E-Print Network [OSTI]

    Ambike, Ajit Dilip

    2004-11-15T23:59:59.000Z

    in presence of network delays and packet losses. A single actuator magnetic ball levitation system was used as a test bed to validate the proposed algorithm. A brief study of real-time requirements of the networked control system is presented and a client-server...

  5. Constraint Orientated Specification with CSP and Real Time Temporal Logic

    E-Print Network [OSTI]

    Kent, University of

    Constraint Orientated Specification with CSP and Real Time Temporal Logic Justin Pearson Department Processes (CSP) [Hoa85] and a version of Propositional Temporal Logic (PTL), derived from [Eme90]. CSP. The behaviour of a CSP process is dependent on its environment; it is therefore difficult to assert global

  6. Concurrent and Real Time Systems: the CSP approach Steve Schneider

    E-Print Network [OSTI]

    Doran, Simon J.

    Concurrent and Real Time Systems: the CSP approach by Steve Schneider First published 1999 Systems the CSP approach Steve Schneider A Wiley-Interscience Publication JOHN WILEY & SONS, INC. New York Whitehead This book provides an introduction to Communicating Sequential Processes (CSP) and its use

  7. : A Testbed for Empirically Comparing Real-Time Multiprocessor Schedulers

    E-Print Network [OSTI]

    Anderson, James

    on M processors any pe- riodic task system with total utilization at most M [2], and the global-deadline-first (EDF) scheduling, pre- emptive and nonpreemptive global EDF scheduling, and two variants of the global-real-time constraints. To our knowledge, this paper is the first attempt by anyone to compare partitioned and global

  8. Functional Speci cation of Real-Time and Hybrid Systems ?

    E-Print Network [OSTI]

    of embedded real-time systems in a physical environment. Recently, a number of description and spec- i cationSys" and by BMW (Bay- erische Motoren Werke AG). #12;slight modi cations must be carried through, so, or sent to, the environment. Therefore, every channel re ects an input or output communication history

  9. Real-Time Redox Measurements during Endoplasmic Reticulum Stress Reveal

    E-Print Network [OSTI]

    Mullins, Dyche

    Real-Time Redox Measurements during Endoplasmic Reticulum Stress Reveal Interlinked Protein Folding.10.011 SUMMARY Disruption of protein folding in the endoplasmic reticulum (ER) causes unfolded proteins to accumu is active. Because ER redox po- tential is optimized for oxidative protein folding, we reasoned

  10. Real-Time Systems, Special Issue on Control-theoretical Approaches to Real-Time Computing, 23(1/2): 85-126, 2002 Feedback Control Real-Time Scheduling: Framework, Modeling, and Algorithms*

    E-Print Network [OSTI]

    Lu, Chenyang

    (1/2): 85-126, 2002 Feedback Control Real-Time Scheduling: Framework, Modeling, and Algorithms* Chenyang Lu}@cs.virginia.edu gt9s@ee.virginia.edu Abstract This paper presents a Feedback Control real-time Scheduling (FCS. These admission-control-based algorithms represent the third major paradigm for real-time scheduling. However

  11. Real-Time Traffic Information for Emergency Evacuations

    SciTech Connect (OSTI)

    Franzese, Oscar [ORNL] [ORNL; Zhang, Li [Mississippi State University (MSU)] [Mississippi State University (MSU); Mahmoud, Anas M. [Mississippi State University (MSU)] [Mississippi State University (MSU)

    2010-01-01T23:59:59.000Z

    There are many instances in which it is possible to plan ahead for an emergency evacuation (e.g., a chemical processing facility explosion). For those cases, if an accident were to happen, then the best evacuation plan for the prevailing network and weather conditions would be deployed. In other cases (e.g., the derailment of a train transporting hazardous materials), there may not be any previously developed plan to be implemented, and decisions must be made ad-hoc on how to proceed with an emergency evacuation. In both situations, the availability of real-time traffic information plays a critical role in the management of the evacuation operations. Due to cost constraints, only large urban areas have traffic sensor deployments that permit access to some sort of real-time traffic information; an evacuation taking place in other areas of the country would have to proceed without real-time traffic information. In order to improve operations during a vehicular emergency evacuation anywhere, a system of sensors that uses newly developed real-time traffic-information-gathering technologies to assess traffic conditions and to detect incidents on the main evacuation routes is presented in this paper. A series of tests, both in a controlled environment and in the field, were conducted to study the feasibility of such a system of traffic sensors and to assess its ability to provide real-time traffic information during an emergency evacuation. The results of these tests indicated that the prototype sensors are reliable and accurate for the type of application that is the focus of this paper.

  12. Real Time Diagnostics for Algae-final-sm

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298, andEpidermalOxide Fuel CellsReactionRealReal-time

  13. Real-Time Airborne Particle Analyzer - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298, andEpidermalOxide Fuel CellsReactionRealReal-time

  14. Managing high-bandwidth real-time data storage

    SciTech Connect (OSTI)

    Bigelow, David D. [Los Alamos National Laboratory; Brandt, Scott A [Los Alamos National Laboratory; Bent, John M [Los Alamos National Laboratory; Chen, Hsing-Bung [Los Alamos National Laboratory

    2009-09-23T23:59:59.000Z

    There exist certain systems which generate real-time data at high bandwidth, but do not necessarily require the long-term retention of that data in normal conditions. In some cases, the data may not actually be useful, and in others, there may be too much data to permanently retain in long-term storage whether it is useful or not. However, certain portions of the data may be identified as being vitally important from time to time, and must therefore be retained for further analysis or permanent storage without interrupting the ongoing collection of new data. We have developed a system, Mahanaxar, intended to address this problem. It provides quality of service guarantees for incoming real-time data streams and simultaneous access to already-recorded data on a best-effort basis utilizing any spare bandwidth. It has built in mechanisms for reliability and indexing, can scale upwards to meet increasing bandwidth requirements, and handles both small and large data elements equally well. We will show that a prototype version of this system provides better performance than a flat file (traditional filesystem) based version, particularly with regard to quality of service guarantees and hard real-time requirements.

  15. Real-Time Building Energy Simulation Using EnergyPlus and the Building Controls Test Bed

    SciTech Connect (OSTI)

    Pang, Xiufeng; Bhattachayra, Prajesh; O'Neill, Zheng; Haves, Philip; Wetter, Michael; Bailey, Trevor

    2011-11-01T23:59:59.000Z

    Most commercial buildings do not perform as well in practice as intended by the design and their performances often deteriorate over time. Reasons include faulty construction, malfunctioning equipment, incorrectly configured control systems and inappropriate operating procedures (Haves et al., 2001, Lee et al., 2007). To address this problem, the paper presents a simulation-based whole building performance monitoring tool that allows a comparison of building actual performance and expected performance in real time. The tool continuously acquires relevant building model input variables from existing Energy Management and Control System (EMCS). It then reports expected energy consumption as simulated of EnergyPlus. The Building Control Virtual Test Bed (BCVTB) is used as the software platform to provide data linkage between the EMCS, an EnergyPlus model, and a database. This paper describes the integrated real-time simulation environment. A proof-of-concept demonstration is also presented in the paper.

  16. Real-time Pricing Demand Response in Operations

    SciTech Connect (OSTI)

    Widergren, Steven E.; Marinovici, Maria C.; Berliner, Teri; Graves, Alan

    2012-07-26T23:59:59.000Z

    AbstractDynamic pricing schemes have been implemented in commercial and industrial application settings, and recently they are getting attention for application to residential customers. Time-of-use and critical-peak-pricing rates are in place in various regions and are being piloted in many more. These programs are proving themselves useful for balancing energy during peak periods; however, real-time (5 minute) pricing signals combined with automation in end-use systems have the potential to deliver even more benefits to operators and consumers. Besides system peak shaving, a real-time pricing system can contribute demand response based on the locational marginal price of electricity, reduce load in response to a generator outage, and respond to local distribution system capacity limiting situations. The US Department of Energy (DOE) is teaming with a mid-west electricity service provider to run a distribution feeder-based retail electricity market that negotiates with residential automation equipment and clears every 5 minutes, thus providing a signal for lowering or raising electric consumption based on operational objectives of economic efficiency and reliability. This paper outlines the capability of the real-time pricing system and the operational scenarios being tested as the system is rolled-out starting in the first half of 2012.

  17. One-handed interface for multitouch-enabled real-time strategy games

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    .edu ABSTRACT Historically, real-time strategy video games, such as Star- craft (Blizzard Entertainment, 1999

  18. Feedback Control of the Sawtooth Period through Real Time Control of the Ion Cyclotron Resonance Frequency

    E-Print Network [OSTI]

    Feedback Control of the Sawtooth Period through Real Time Control of the Ion Cyclotron Resonance Frequency

  19. Coordinated Home Energy Management for Real-Time Power Balancing

    E-Print Network [OSTI]

    Chang, Tsung-Hui; Scaglione, Anna

    2012-01-01T23:59:59.000Z

    This paper proposes a coordinated home energy management system (HEMS) architecture where the distributed residential units cooperate with each other to achieve real-time power balancing. The economic benefits for the retailer and incentives for the customers to participate in the proposed coordinated HEMS program are given. We formulate the coordinated HEMS design problem as a dynamic programming (DP) and use approximate DP approaches to efficiently handle the design problem. A distributed implementation algorithm based on the convex optimization based dual decomposition technique is also presented. Our focus in the current paper is on the deferrable appliances, such as Plug-in (Hybrid) Electric Vehicles (PHEV), in view of their higher impact on the grid stability. Simulation results shows that the proposed coordinated HEMS architecture can efficiently improve the real-time power balancing.

  20. Real time markerless motion tracking using linked kinematic chains

    DOE Patents [OSTI]

    Luck, Jason P. (Arvada, CO); Small, Daniel E. (Albuquerque, NM)

    2007-08-14T23:59:59.000Z

    A markerless method is described for tracking the motion of subjects in a three dimensional environment using a model based on linked kinematic chains. The invention is suitable for tracking robotic, animal or human subjects in real-time using a single computer with inexpensive video equipment, and does not require the use of markers or specialized clothing. A simple model of rigid linked segments is constructed of the subject and tracked using three dimensional volumetric data collected by a multiple camera video imaging system. A physics based method is then used to compute forces to align the model with subsequent volumetric data sets in real-time. The method is able to handle occlusion of segments and accommodates joint limits, velocity constraints, and collision constraints and provides for error recovery. The method further provides for elimination of singularities in Jacobian based calculations, which has been problematic in alternative methods.

  1. A versatile real-time spectral analysis system

    E-Print Network [OSTI]

    Hancock, Mark Steven

    2012-06-07T23:59:59.000Z

    . CONCLUSIONS AND RECOMMENDATIONS REFERENCES APPENDIX A. MINDOWING APPENDIX B. CCD TRANSVERSAL FILTERS VITA Page 65 71 73 81 92 93 105 105 106 106 108 112 114 134 170 LIST OF FIGURES Figure 1. Filterbank Technique for Spectral Analysis 2... 1. Filter Bank Technique 2. Sliding Filter Technique 3. Dispersive Filter Technique 4. Discrete Fourier Transform Techniques B. Applications Requiring Spectral Analysis . . 1. Real-Time Radar Scatterometer Data Processing 2. Chirp FN Radar Data...

  2. Embedded Real-Time Systems Electrical Model Quad Rotor UAV

    E-Print Network [OSTI]

    Langendoen, Koen

    Sys (2013-2014) #12;10 System SW view joystick QR PC link PC lift roll pitch yaw sensorsES joystickIn4073 Embedded Real-Time Systems Electrical Model Quad Rotor UAV #12;2 TE0300 FPGA System HW view), pitch rate (M), and yaw rate (N) (see qrsim for example!) x z y engine 4 engine 3 engine 2 engine 1 In

  3. DEVELOPMENT OF AN ON-LINE, REAL-TIME ALPHA RADIATION MEASURING INSTRUMENT FOR LIQUID STREAMS

    SciTech Connect (OSTI)

    Unknown

    1999-06-16T23:59:59.000Z

    Thermo Power Corporation has proven the technical viability of an on-line, real-time alpha radionuclide instrument for aqueous sample analysis through laboratory and initial field tests of the instrument. The instrument has been shown to be isotonically sensitive to extremely low (ten parts per trillion, or femto Curies per liter) levels of a broad range of radioisotopes. Performance enhancement and other scaling data obtained during the course of this investigation have shown that on-line, real-time operation is possible, with a sub 30-minute response time analyzing 20 ppb (30 pCi/1) natural uranium. Now that these initial field tests in Oak Ridge, Tennessee have been successfully completed, Thermo Power plans to conduct comprehensive field tests of the instrument. The purpose of these endurance tests will be to determine the endurance characteristics of the Thermo Alpha Monitor for Water when it is used by non-Thermo Power personnel in a series of one or more extended field tests. Such endurance testing is the vital next step towards the commercialization of the Alpha Monitor. Subsequently, it will be possible to provide the DOE with an instrument that has the capability of obtaining rapid feedback about the concentrations of alpha-emitting isotope contamination in effluent water streams (Subsurface Contaminants Focus Area). It will also be useful for process control of remediation and D and D operations such as monitoring scrubber/rinse water radioactivity levels (Mixed Waste, Plutonium and D and D Focus Areas).

  4. Real time 3D and heterogeneous data fusion

    SciTech Connect (OSTI)

    Little, C.Q.; Small, D.E.

    1998-03-01T23:59:59.000Z

    This project visualizes characterization data in a 3D setting, in real time. Real time in this sense means collecting the data and presenting it before it delays the user, and processing faster than the acquisition systems so no bottlenecks occur. The goals have been to build a volumetric viewer to display 3D data, demonstrate projecting other data, such as images, onto the 3D data, and display both the 3D and projected images as fast as the data became available. The authors have examined several ways to display 3D surface data. The most effective was generating polygonal surface meshes. They have created surface maps form a continuous stream of 3D range data, fused image data onto the geometry, and displayed the data with a standard 3D rendering package. In parallel with this, they have developed a method to project real-time images onto the surface created. A key component is mapping the data on the correct surfaces, which requires a-priori positional information along with accurate calibration of the camera and lens system.

  5. Imaging gene expression in real-time using aptamers

    SciTech Connect (OSTI)

    Shin, Il Chung

    2011-12-13T23:59:59.000Z

    Signal transduction pathways are usually activated by external stimuli and are transient. The downstream changes such as transcription of the activated genes are also transient. Real-time detection of promoter activity is useful for understanding changes in gene expression, especially during cell differentiation and in development. A simple and reliable method for viewing gene expression in real time is not yet available. Reporter proteins such as fluorescent proteins and luciferase allow for non-invasive detection of the products of gene expression in living cells. However, current reporter systems do not provide for real-time imaging of promoter activity in living cells. This is because of the long time period after transcription required for fluorescent protein synthesis and maturation. We have developed an RNA reporter system for imaging in real-time to detect changes in promoter activity as they occur. The RNA reporter uses strings of RNA aptamers that constitute IMAGEtags (Intracellular MultiAptamer GEnetic tags), which can be expressed from a promoter of choice. The tobramycin, neomycin and PDC RNA aptamers have been utilized for this system and expressed in yeast from the GAL1 promoter. The IMAGEtag RNA kinetics were quantified by RT-qPCR. In yeast precultured in raffinose containing media the GAL1 promoter responded faster than in yeast precultured in glucose containing media. IMAGEtag RNA has relatively short half-life (5.5 min) in yeast. For imaging, the yeast cells are incubated with their ligands that are labeled with fluorescent dyes. To increase signal to noise, ligands have been separately conjugated with the FRET (Frster resonance energy transfer) pairs, Cy3 and Cy5. With these constructs, the transcribed aptamers can be imaged after activation of the promoter by galactose. FRET was confirmed with three different approaches, which were sensitized emission, acceptor photobleaching and donor lifetime by FLIM (fluorescence lifetime imaging microscopy). Real-time transcription was measured by FLIM-FRET, which was detected by the decrease in donor lifetime resulting from ligand binding to IMAGEtags that were newly synthesized from the activated GAL1 promoter. The FRET signal was specific for transcribed IMAGEtags.

  6. LHCb's Real-Time Alignment in Run2

    E-Print Network [OSTI]

    Batozskaya, Varvara

    2015-01-01T23:59:59.000Z

    Stable, precise spatial alignment and PID calibration are necessary to achieve optimal detector performances. During Run2, LHCb will have a new real-time detector alignment and calibration to reach equivalent performances in the online and offline reconstruction. This offers the opportunity to optimise the event selection by applying stronger constraints as well as hadronic particle identification at the trigger level. The required computing time constraints are met thanks to a new dedicated framework using the multi-core farm infrastructure for the trigger.

  7. A Novel comprehensive method for real time Video Motion Detection Surveillance

    E-Print Network [OSTI]

    Mishra, Sumita

    2011-01-01T23:59:59.000Z

    This article describes a comprehensive system for surveillance and monitoring applications. The development of an efficient real time video motion detection system is motivated by their potential for deployment in the areas where security is the main concern. The paper presents a platform for real time video motion detection and subsequent generation of an alarm condition as set by the parameters of the control system. The prototype consists of a mobile platform mounted with RF camera which provides continuous feedback of the environment. The received visual information is then analyzed by user for appropriate control action, thus enabling the user to operate the system from a remote location. The system is also equipped with the ability to process the image of an object and generate control signals which are automatically transmitted to the mobile platform to track the object.

  8. Mahanaxar: quality of service guarantees in high-bandwidth, real-time streaming data storage

    SciTech Connect (OSTI)

    Bigelow, David [Los Alamos National Laboratory; Bent, John [Los Alamos National Laboratory; Chen, Hsing - Bung [Los Alamos National Laboratory; Brandt, Scott [UCSC

    2010-01-01T23:59:59.000Z

    Large radio telescopes, cyber-security systems monitoring real-time network traffic, and others have specialized data storage needs: guaranteed capture of an ultra-high-bandwidth data stream, retention of the data long enough to determine what is 'interesting,' retention of interesting data indefinitely, and concurrent read/write access to determine what data is interesting, without interrupting the ongoing capture of incoming data. Mahanaxar addresses this problem. Mahanaxar guarantees streaming real-time data capture at (nearly) the full rate of the raw device, allows concurrent read and write access to the device on a best-effort basis without interrupting the data capture, and retains data as long as possible given the available storage. It has built in mechanisms for reliability and indexing, can scale to meet arbitrary bandwidth requirements, and handles both small and large data elements equally well. Results from our prototype implementation shows that Mahanaxar provides both better guarantees and better performance than traditional file systems.

  9. Near real time vapor detection and enhancement using aerosol adsorption

    SciTech Connect (OSTI)

    Novick, Vincent J.; Johnson, Stanley A.

    1997-12-01T23:59:59.000Z

    A vapor sample detection method where the vapor sample contains vapor and ambient air and surrounding natural background particles. The vapor sample detection method includes the steps of generating a supply of aerosol that have a particular effective median particle size, mixing the aerosol with the vapor sample forming aerosol and adsorbed vapor suspended in an air stream, impacting the suspended aerosol and adsorbed vapor upon a reflecting element, alternatively directing infrared light to the impacted aerosol and adsorbed vapor, detecting and analyzing the alternatively directed infrared light in essentially real time using a spectrometer and a microcomputer and identifying the vapor sample.

  10. Near real time vapor detection and enhancement using aerosol adsorption

    DOE Patents [OSTI]

    Novick, V.J.; Johnson, S.A.

    1999-08-03T23:59:59.000Z

    A vapor sample detection method is described where the vapor sample contains vapor and ambient air and surrounding natural background particles. The vapor sample detection method includes the steps of generating a supply of aerosol that have a particular effective median particle size, mixing the aerosol with the vapor sample forming aerosol and adsorbed vapor suspended in an air stream, impacting the suspended aerosol and adsorbed vapor upon a reflecting element, alternatively directing infrared light to the impacted aerosol and adsorbed vapor, detecting and analyzing the alternatively directed infrared light in essentially real time using a spectrometer and a microcomputer and identifying the vapor sample. 13 figs.

  11. Near real time vapor detection and enhancement using aerosol adsorption

    DOE Patents [OSTI]

    Novick, Vincent J. (Downers Grove, IL); Johnson, Stanley A. (Countryside, IL)

    1999-01-01T23:59:59.000Z

    A vapor sample detection method where the vapor sample contains vapor and ambient air and surrounding natural background particles. The vapor sample detection method includes the steps of generating a supply of aerosol that have a particular effective median particle size, mixing the aerosol with the vapor sample forming aerosol and adsorbed vapor suspended in an air stream, impacting the suspended aerosol and adsorbed vapor upon a reflecting element, alternatively directing infrared light to the impacted aerosol and adsorbed vapor, detecting and analyzing the alternatively directed infrared light in essentially real time using a spectrometer and a microcomputer and identifying the vapor sample.

  12. Real-Time Chemical Imaging of Bacterial Biofilm Development

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromising Science for1PrincipalRare | NationalReal-Time Chemical

  13. Real-Time Chemical Imaging of Bacterial Biofilm Development

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromising Science for1PrincipalRare | NationalReal-Time

  14. Real-Time Chemical Imaging of Bacterial Biofilm Development

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromising Science for1PrincipalRare |Real-Time Chemical Imaging of

  15. Real-Time Chemical Imaging of Bacterial Biofilm Development

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298, andEpidermalOxide FuelReal-Time Chemical Imaging of

  16. Real-Time Chemical Imaging of Bacterial Biofilm Development

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298, andEpidermalOxide FuelReal-Time Chemical Imaging

  17. Real-Time Chemical Imaging of Bacterial Biofilm Development

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298, andEpidermalOxide FuelReal-Time Chemical

  18. REAL-TIME DISPATCHING OF GUIDED AND UNGUIDED AUTOMOBILE SERVICE UNITS WITH SOFT TIME WINDOWS

    E-Print Network [OSTI]

    Krumke, Sven O.

    REAL-TIME DISPATCHING OF GUIDED AND UNGUIDED AUTOMOBILE SERVICE UNITS WITH SOFT TIME WINDOWS SVEN O that are no worse than 1% from optimum on state-of-the-art personal computers. 1. INTRODUCTION The German Automobile Association ADAC (Allgemeiner Deutscher Automobil- Club), the second largest automobile club worldwide

  19. Real-time Monitoring of Large Scientific Simulations

    E-Print Network [OSTI]

    Pascucci, Valerio

    space-filling curves. The Lebesgue curve is also known as Z-order, Morton, .... Curve. Special case. Simple load balancing on visualization side. Fast slicing, isosurfacing, and volume rendering. #12;The7 B8 B13 B14 B15 B16 Takes advantage of simulation load balancing One Data Source per compute

  20. Real-time Monitoring of a Rich Social Data Infrastructure

    E-Print Network [OSTI]

    in Engineering (Computer Science and Engineering). The thesis supervisors are Sune Lehmann Jørgensen and Jakob Eg to have Sune Lehmann Jørgensen and Jakob Eg Larsen as my advisors. You have helped me a lot with my work

  1. Real-Time Seizure Monitoring and Spectral Analysis Microsystem

    E-Print Network [OSTI]

    Genov, Roman

    , Canada and Computer Engineering University of Toronto Email: roman@eecg.utoronto.ca University of Toronto miniature physical substrate, lack these spatio-temporal signal pre-processing of neural activity across

  2. Microwave Plasma Monitoring System For Real-Time Elemental Analysis

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

    air for the presence of minor amounts of elements, particularly transition metals, rare earth elements, actinides, and alkali and alkaline earth elements. The invention apparatus...

  3. Steps to Establish a Real-Time Transmission Monitoring System...

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

    evaluation of how such a system could be established if one is to be pursued. This joint report merely describes the steps necessary to establish and implement an...

  4. Real-time Health Monitoring of Mechanical Structures

    E-Print Network [OSTI]

    Ray, Asok

    , years for bridges and roads, and number of starts for diesel engines. It is also assumed that the state of damage in a mechanical structure bears a direct correlation with the amount of usage. However, one

  5. Microwave Plasma Monitoring System For Real-Time Elemental Analysis

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment SurfacesResource Program PreliminaryA3, 1999 http://www.eia.doe.govMicrowave Plasma

  6. DEVELOPMENT OF AN ON-LINE, REAL-TIME ALPHA RADIATION MEASURING INSTRUMENT FOR LIQUID STREAMS

    SciTech Connect (OSTI)

    Unknown

    1999-03-14T23:59:59.000Z

    The US Department of Energy (DOE) has expressed a need for an on-line, real-time instrument for assaying alpha-emitting radionuclides (uranium and the transuranics) in effluent waters leaving DOE sites to ensure compliance with regulatory limits. Due to the short range of alpha particles in water ({approximately}40 Im), it is necessary now to intermittently collect samples of water and send them to a central laboratory for analysis. A lengthy and costly procedure is used to separate and measure the radionuclides from each sample. Large variations in radionuclide concentrations in the water may go undetected due to the sporadic sampling. Even when detected, the reading may not be representative of the actual stream concentration. To address these issues, the Advanced Technologies Group of Thermo Power Corporation (a Thermo Electron company) is developing a real-time, field-deployable alpha monitor based on a solid-state silicon wafer semiconductor (US Patent 5,652,013 and pending, assigned to the US Department of Energy). The Thermo Water Alpha Monitor will serve to monitor effluent water streams (Subsurface Contaminants Focus Area) and will be suitable for process control of remediation as well as decontamination and decommissioning (D and D) operations, such as monitoring scrubber or rinse water radioactivity levels (Mixed Waste, Plutonium, and D and D Focus Area). It would be applicable for assaying other liquids, such as oil, or solids after proper preconditioning. Rapid isotopic alpha air monitoring is also possible using this technology. This report details the program's accomplishments to date. Most significantly, the Alpha Monitoring Instrument was successfully field demonstrated on water 100X below the Environmental Protection Agency's proposed safe drinking water limit--down to under 1 pCi/1. During the Field Test, the Alpha Monitoring Instrument successfully analyzed isotopic uranium levels on a total of five different surface water, process water, and ground water streams (the primary water types of interest to the DOE). As an example of the user demand for such an analytical instrument, a portion of the Field Test for the Alpha Monitoring Instrument was on the DOE's Oak Ridge Reservation, at two test locations in the Y-12 Site's Bear Creek Valley.

  7. Real-time individualized training vectors for experiential learning.

    SciTech Connect (OSTI)

    Willis, Matt; Tucker, Eilish Marie; Raybourn, Elaine Marie; Glickman, Matthew R.; Fabian, Nathan

    2011-01-01T23:59:59.000Z

    Military training utilizing serious games or virtual worlds potentially generate data that can be mined to better understand how trainees learn in experiential exercises. Few data mining approaches for deployed military training games exist. Opportunities exist to collect and analyze these data, as well as to construct a full-history learner model. Outcomes discussed in the present document include results from a quasi-experimental research study on military game-based experiential learning, the deployment of an online game for training evidence collection, and results from a proof-of-concept pilot study on the development of individualized training vectors. This Lab Directed Research & Development (LDRD) project leveraged products within projects, such as Titan (Network Grand Challenge), Real-Time Feedback and Evaluation System, (America's Army Adaptive Thinking and Leadership, DARWARS Ambush! NK), and Dynamic Bayesian Networks to investigate whether machine learning capabilities could perform real-time, in-game similarity vectors of learner performance, toward adaptation of content delivery, and quantitative measurement of experiential learning.

  8. Cost Optimal Operation of Thermal Energy Storage System with Real-Time Prices

    E-Print Network [OSTI]

    Cost Optimal Operation of Thermal Energy Storage System with Real-Time Prices Toru Kashima, Member of the result [4]. The same can be said for time varying real-time prices. Real-time energy pricing is not yet such as chillers. Energy resources such as electricity or natural gas are bought from suppliers at certain prices

  9. On Utility Accrual Processor Scheduling with Wait-Free Synchronization for Embedded Real-Time Software

    E-Print Network [OSTI]

    Ravindran, Binoy

    On Utility Accrual Processor Scheduling with Wait-Free Synchronization for Embedded Real-Time Software ABSTRACT We present the first wait-free utility accrual (UA) real-time scheduling algorithms for embedded real-time systems. UA scheduling algorithms allow application activities to be sub- ject to time/utility

  10. Model for LMFBR core transient analysis in real time

    SciTech Connect (OSTI)

    Tzanos, C.P.

    1986-01-01T23:59:59.000Z

    Plant safety as well as plant availability can be significantly improved if functions such as data validation, plant state verification, and fault identification are automated. A methodology for automation of these functions was presented in an earlier paper. To implement this methodology, plant models that run significantly faster than real transient time are needed. Such models for the intermediate heat exchanger and a once-through liquid-metal fast breeder reactor (LMFBR) steam generator have been presented. This paper discusses the modeling of LMFBR core transients. It is shown that, with a proper choice of shape functions, a nodal approximation of the coolant, cladding, and fuel temperature distributions leads to adequately accurate power and temperature predictions, as well as adequately short computation times. From the point of view of operational safety, it is desirable to terminate a transient before sodium boiling is initiated in the core. Thus, only the modeling of the preboiling phase of core transients is discussed.

  11. E-Print Network 3.0 - analyzing real-time systems Sample Search...

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

    and Information Sciences 69 An Open Environment for RealTime Applications Z. Deng Jane W.S. Liu L. Zhang S. Mouna A. Frei Summary: , and real-time application programming...

  12. Is there a source of help for setting up real time wind turbine...

    Open Energy Info (EERE)

    there a source of help for setting up real time wind turbine data reporting ? Home I'd like our students to be able to see historical data as well as real time power generation at...

  13. On the stability of wholesale electricity markets under real-time pricing

    E-Print Network [OSTI]

    Roozbehani, Mardavij

    The paper proposes a mathematical model for the dynamic evolution of supply, demand, and clearing prices under a class of real-time pricing mechanisms characterized by passing on the real-time wholesale prices to the end ...

  14. High-Energy, Pulsed-Laser Diagnostics for Real-Time Measurements...

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

    Energy, Pulsed-Laser Diagnostics for Real-Time Measurements of Reciprocating Engine PM Emissions High-Energy, Pulsed-Laser Diagnostics for Real-Time Measurements of Reciprocating...

  15. E-Print Network 3.0 - array-based real-time optical Sample Search...

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

    processing with parallel... With the increase of the A-line speed of optical coherence tomography (OCT) systems, real-time proces- sing... . de Boer, "Real-time multi-functional...

  16. Zenet: Generating and Enforcing Real-Time Temporal Chris Lewis

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    generator, temporal invariants, runtime software- fault monitoring, rule engine, video games 1. PROBLEM

  17. Real-time physics data-visualization system using Performer Chris Mitchella

    E-Print Network [OSTI]

    California at Los Angles, University of

    techniques used both in the video-game industry and military flight simulators to achieve real-time frame

  18. Real-Time Systems, 27, 97113, 2004 # 2004 Kluwer Academic Publishers. Manufactured in The Netherlands.

    E-Print Network [OSTI]

    Pázsit, Imre

    in The Netherlands. Diagnostics and Surveillance Methods in Nuclear Systems for Real-Time Applications I. PA? ZSIT

  19. Real-Time Water Quality Management in the Grassland Water District

    SciTech Connect (OSTI)

    Quinn, Nigel W.T.; Hanna, W. Mark; Hanlon, Jeremy S.; Burns, Josphine R.; Taylor, Christophe M.; Marciochi, Don; Lower, Scott; Woodruff, Veronica; Wright, Diane; Poole, Tim

    2004-12-10T23:59:59.000Z

    The purpose of the research project was to advance the concept of real-time water quality management in the San Joaquin Basin by developing an application to drainage of seasonal wetlands in the Grassland Water District. Real-time water quality management is defined as the coordination of reservoir releases, return flows and river diversions to improve water quality conditions in the San Joaquin River and ensure compliance with State water quality objectives. Real-time water quality management is achieved through information exchange and cooperation between shakeholders who contribute or withdraw flow and salt load to or from the San Joaquin River. This project complements a larger scale project that was undertaken by members of the Water Quality Subcommittee of the San Joaquin River Management Program (SJRMP) and which produced forecasts of flow, salt load and San Joaquin River assimilative capacity between 1999 and 2003. These forecasts can help those entities exporting salt load to the River to develop salt load targets as a mechanism for improving compliance with salinity objectives. The mass balance model developed by this project is the decision support tool that helps to establish these salt load targets. A second important outcome of this project was the development and application of a methodology for assessing potential impacts of real-time wetland salinity management. Drawdown schedules are typically tied to weather conditions and are optimized in traditional practices to maximize food sources for over-wintering wildfowl as well as providing a biological control (through germination temperature) of undesirable weeds that compete with the more proteinaceous moist soil plants such as swamp timothy, watergrass and smartweed. This methodology combines high resolution remote sensing, ground-truthing vegetation surveys using established survey protocols and soil salinity mapping using rapid, automated electromagnetic sensor technology. This survey methodology could be complemented with biological surveys of bird use and invertebrates to produce a robust long-term monitoring strategy for habitat health and sustainability.

  20. SIG Technology Review Summer 1994 57 Real-Time Navigation Using the Global Positioning System

    E-Print Network [OSTI]

    Simon, Dan

    SIG Technology Review · Summer 1994 57 Real-Time Navigation Using the Global Positioning System Real-Time Navigation Using the Global Positioning System Dan Simon and Hossny El-Sherief, TRW Ballistic Technology Review · Summer 1994 Real-Time Navigation Using the Global Positioning System introduces errors

  1. Real-time Lighting System for Large Group Interaction Joshua Randall

    E-Print Network [OSTI]

    Real-time Lighting System for Large Group Interaction Joshua Randall Massachusetts Institute of Technology May 2002 Abstract Lighting systems have historically been controlled by an individual or small group of human operators working together in real-time. Applications for real-time lighting control

  2. CARSystem: a distributed algorithm for efficient real-time vehicular traffic control

    E-Print Network [OSTI]

    Koothrappally, Joseph

    1997-01-01T23:59:59.000Z

    transfer between individual traffic control processes. Real-time information -obtained by tracking the density profiles that constitute demand at each intersection in real-time-is used by an on-line optimization algorithm to provide real-time adaptive...

  3. ON THE DEVELOPMENT OF A REAL-TIME SIMULATOR ENGINE FOR A HYDRAULIC FORESTRY MACHINE

    E-Print Network [OSTI]

    Papadopoulos, Evangelos

    1 ON THE DEVELOPMENT OF A REAL-TIME SIMULATOR ENGINE FOR A HYDRAULIC FORESTRY MACHINE Evangelos@central.ntua.gr Abstract This work focuses on the development of a real-time training simulator engine for a forestry simulator, hydraulic dynamics, numerical stiffness, real-time, control system 1 Introduction Forestry

  4. Time-lapse seismic monitoring of subsurface fluid flow

    E-Print Network [OSTI]

    Yuh, Sung H.

    2004-09-30T23:59:59.000Z

    Time-lapse seismic monitoring repeats 3D seismic imaging over a reservoir to map fluid movements in a reservoir. During hydrocarbon production, the fluid saturation, pressure, and temperature of a reservoir change, thereby altering the acoustic...

  5. Time Series Evaluation of Portal Monitor Data

    SciTech Connect (OSTI)

    Robinson, Sean M.; Bender, Sarah E.; Lopresti, Charles A.; Woodring, Mitchell L.

    2008-12-08T23:59:59.000Z

    Radiation portal monitors screen cargo and personal vehicle traffic at international border crossings to detect and interdict illicit sources which may be present in the commerce stream. One difficulty faced by RPM systems is the prospect of false alarms, or undesired alarms due to background fluctuation, or Naturally-Occurring Radioactive Material (NORM) sources in the commerce stream. In general, NORM alarms represent a significant fraction of the nuisance alarms at international border crossings, particularly with Polyvinyl-Toluene (PVT) RPM detectors, which have only very weak spectral differentiation capability. With PVT detectors, the majority of detected photon events fall within the Compton continuum of the material, allowing for very little spectral information to be preserved [1]. Previous work has shown that these detectors can be used for limited spectroscopy, utilizing around 8 spectral bins to further differentiate some NORM and other nuisance sources [2]. NaI based systems achieve much more detailed spectral resolution from each measurement of a source, but still combine all measurements over a vehicle's occupancy in order to arrive at a spectrum to be analyzed.

  6. Real-Time Scheduling of Energy Harvesting Embedded Systems with Timed Automata

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , in addition to traditional embedded system components, by an energy collector unit (eg a solar panel implants which collect energy from the human body, mobile or fix devices with solar panel or windmill etc) and by an energy storage unit (a battery or a capacitor). One common hypothesis in real-time system theory

  7. Real-Time SCADA Cyber Protection Using Compression Techniques

    SciTech Connect (OSTI)

    Lyle G. Roybal; Gordon H Rueff

    2013-11-01T23:59:59.000Z

    The Department of Energys Office of Electricity Delivery and Energy Reliability (DOE-OE) has a critical mission to secure the energy infrastructure from cyber attack. Through DOE-OEs Cybersecurity for Energy Delivery Systems (CEDS) program, the Idaho National Laboratory (INL) has developed a method to detect malicious traffic on Supervisory, Control, and Data Acquisition (SCADA) network using a data compression technique. SCADA network traffic is often repetitive with only minor differences between packets. Research performed at the INL showed that SCADA network traffic has traits desirable for using compression analysis to identify abnormal network traffic. An open source implementation of a Lempel-Ziv-Welch (LZW) lossless data compression algorithm was used to compress and analyze surrogate SCADA traffic. Infected SCADA traffic was found to have statistically significant differences in compression when compared against normal SCADA traffic at the packet level. The initial analyses and results are clearly able to identify malicious network traffic from normal traffic at the packet level with a very high confidence level across multiple ports and traffic streams. Statistical differentiation between infected and normal traffic level was possible using a modified data compression technique at the 99% probability level for all data analyzed. However, the conditions tested were rather limited in scope and need to be expanded into more realistic simulations of hacking events using techniques and approaches that are better representative of a real-world attack on a SCADA system. Nonetheless, the use of compression techniques to identify malicious traffic on SCADA networks in real time appears to have significant merit for infrastructure protection.

  8. Quasi real time in vivo dosimetry for VMAT

    SciTech Connect (OSTI)

    Fidanzio, A.; Azario, L. [Istituto di Fisica, Universit Cattolica del Sacro Cuore, Rome 00168 (Italy) [Istituto di Fisica, Universit Cattolica del Sacro Cuore, Rome 00168 (Italy); U.O.C di Fisica Sanitaria, Universit Cattolica del Sacro Cuore, Rome 00168 (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Roma Tre, Rome 00146 (Italy); Porcelli, A. [U.O.C di Fisica Sanitaria, Universit Cattolica del Sacro Cuore, Rome 00168 (Italy)] [U.O.C di Fisica Sanitaria, Universit Cattolica del Sacro Cuore, Rome 00168 (Italy); Greco, F. [U.O.C di Fisica Sanitaria, Universit Cattolica del Sacro Cuore, Rome 00168 (Italy) [U.O.C di Fisica Sanitaria, Universit Cattolica del Sacro Cuore, Rome 00168 (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Roma Tre, Rome 00146 (Italy); Cilla, S. [U.O di Fisica Sanitaria, Fondazione di Ricerca e Cura Giovanni Paolo II, Campobasso 86100, Italy and Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Roma Tre, Rome 00146 (Italy)] [U.O di Fisica Sanitaria, Fondazione di Ricerca e Cura Giovanni Paolo II, Campobasso 86100, Italy and Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Roma Tre, Rome 00146 (Italy); Grusio, M. [Istituto di Fisica, Universit Cattolica del Sacro Cuore, Rome 00168 (Italy)] [Istituto di Fisica, Universit Cattolica del Sacro Cuore, Rome 00168 (Italy); Balducci, M.; Valentini, V. [U.O.C di Radioterapia, Universit Cattolica del Sacro Cuore, Rome 00168 (Italy)] [U.O.C di Radioterapia, Universit Cattolica del Sacro Cuore, Rome 00168 (Italy); Piermattei, A., E-mail: a.piermattei@rm.unicatt.it [Istituto di Fisica, Universit Cattolica del Sacro Cuore, Rome 00168 (Italy); U.O.C di Fisica Sanitaria, Universit Cattolica del Sacro Cuore, Rome 00168 (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Roma Tre, Rome 00168 (Italy)

    2014-06-15T23:59:59.000Z

    Purpose: Results about the feasibility of a method for quasi real timein vivo dosimetry (IVD) at the isocenter point for volumetric modulated arc therapy (VMAT) are here reported. The method is based on correlations between the EPID signal and the dose on the beam central axis. Moreover, the ?-analysis of EPID images was adopted to verify off-axis reproducibility of fractionated plan delivery. Methods: An algorithm to reconstructin vivo the isocenter dose, D{sub iso}, for RapidArc treatments has been developed. 20 VMAT plans, optimized with two opposite arcs, for prostate, pancreas, and head treatments have been delivered by a Varian linac both to a conic PMMA phantom with elliptical section and to patients. The ratios R between reconstructed D{sub iso} and the planned doses were determined for phantom and patient irradiations adopting an acceptance criterion of 5%. In total, 40 phantom checks and 400 patient checks were analyzed. Moreover, 3% and 3 mm criteria were adopted for portal image ?-analysis to assess patient irradiation reproducibility. Results: The average ratio R, between reconstructed and planned doses for the PMMA phantom irradiations was equal to 1.007 0.024. When the IVD method was applied to the 20 patients, the average R ratio was equal to 1.003 0.017 and 96% of the tests were within the acceptance criteria. The portal image ?-analysis supplied 88% of the tests within the pass rates ?{sub mean} ? 0.4 and P{sub ?<1} ? 98%. All the warnings were understood comparing the CT and the cone beam CT images and in one case a patient's setup error was detected and corrected for the successive fractions. Conclusions: This preliminary experience suggests that the method is able to detect dosimetric errors in quasi real time at the end of the therapy session. The authors intend to extend this procedure to other pathologies with the integration of in-room imaging verification by cone beam CT.

  9. Suppressing qubit dephasing using real-time Hamiltonian estimation

    E-Print Network [OSTI]

    Michael D. Shulman; Shannon P. Harvey; John M. Nichol; Stephen D. Bartlett; Andrew C. Doherty; Vladimir Umansky; Amir Yacoby

    2014-05-02T23:59:59.000Z

    Unwanted interaction between a quantum system and its fluctuating environment leads to decoherence and is the primary obstacle to establishing a scalable quantum information processing architecture. Strategies such as environmental and materials engineering, quantum error correction and dynamical decoupling can mitigate decoherence, but generally increase experimental complexity. Here we improve coherence in a qubit using real-time Hamiltonian parameter estimation. Using a rapidly converging Bayesian approach, we precisely measure the splitting in a singlet-triplet spin qubit faster than the surrounding nuclear bath fluctuates. We continuously adjust qubit control parameters based on this information, thereby improving the inhomogenously broadened coherence time ($T_{2}^{*}$) from tens of nanoseconds to above 2 $\\mu$s and demonstrating the effectiveness of Hamiltonian estimation in reducing the effects of correlated noise in quantum systems. Because the technique demonstrated here is compatible with arbitrary qubit operations, it is a natural complement to quantum error correction and can be used to improve the performance of a wide variety of qubits in both metrological and quantum-information-processing applications.

  10. A Study of Concurrent Real-Time Garbage Collectors Filip Pizlo

    E-Print Network [OSTI]

    Rinetzky, Noam

    A Study of Concurrent Real-Time Garbage Collectors Filip Pizlo Purdue University West Lafayette at the microseconds level. Concurrent collectors also offer much better scalability over incremental collectors. The main prob- lem with concurrent real-time collectors is their complexity. The first concurrent real

  11. Multi-version Scheduling in Rechargeable Energy-aware Real-time Systems

    E-Print Network [OSTI]

    Melhem, Rami

    and a solar panel [14]. In our work we also assume that the battery is rechargeable. During the day real Research Projects Agency through the PARTS (Power-Aware Real-Time Systems) project under Contract F33615

  12. Real time cosmology - A direct measure of the expansion rate of the Universe

    E-Print Network [OSTI]

    Klckner, H -R; Martins, C; Raccanelli, A; Champion, D; Roy, A; Lobanov, A; Wagner, J; Keller, R

    2015-01-01T23:59:59.000Z

    In recent years cosmology has undergone a revolution, with precise measurements of the microwave background radiation, large galaxy redshift surveys, and the discovery of the recent accelerated expansion of the Universe using observations of distant supernovae. In this light, the SKA enables us to do an ultimate test in cosmology by measuring the expansion rate of the Universe in real time. This can be done by a rather simple experiment of observing the neutral hydrogen (HI) signal of galaxies at two different epochs. The signal will encounter a change in frequency imprinted as the Universe expands over time and thus monitoring the drift in frequencies will provide a real time measure of the cosmic acceleration. Over a period of 12 years one would expected a frequency shift of the order of 0.1 Hz assuming a standard Lambda-CDM cosmology. Based on the sensitivity estimates of the SKA and the number counts of the expected HI galaxies, it is shown that the number counts are sufficiently high to compensate for th...

  13. Concept Paper for Real-Time Temperature and Water Quality Management for San Joaquin River Riparian Habitat Restoration

    E-Print Network [OSTI]

    Quinn, Nigel W.T.

    2004-01-01T23:59:59.000Z

    Report. Real-time Water Quality Management for SJR RiparianReal-time Water Quality Management for SJR Riparian HabitatPaper Real-time Water Quality Management for SJR Riparian

  14. Real-time multi-mode neutron multiplicity counter

    DOE Patents [OSTI]

    Rowland, Mark S; Alvarez, Raymond A

    2013-02-26T23:59:59.000Z

    Embodiments are directed to a digital data acquisition method that collects data regarding nuclear fission at high rates and performs real-time preprocessing of large volumes of data into directly useable forms for use in a system that performs non-destructive assaying of nuclear material and assemblies for mass and multiplication of special nuclear material (SNM). Pulses from a multi-detector array are fed in parallel to individual inputs that are tied to individual bits in a digital word. Data is collected by loading a word at the individual bit level in parallel, to reduce the latency associated with current shift-register systems. The word is read at regular intervals, all bits simultaneously, with no manipulation. The word is passed to a number of storage locations for subsequent processing, thereby removing the front-end problem of pulse pileup. The word is used simultaneously in several internal processing schemes that assemble the data in a number of more directly useable forms. The detector includes a multi-mode counter that executes a number of different count algorithms in parallel to determine different attributes of the count data.

  15. Real-time algorithm for robust coincidence search

    SciTech Connect (OSTI)

    Petrovic, T.; Vencelj, M.; Lipoglavsek, M.; Gajevic, J.; Pelicon, P. [Jozef Stefan Institute, Jamova cesta 39, Ljubljana, Slovenia and Cosylab d.d., Control System Laboratory, Teslova ulica 30, Ljubljana (Slovenia); Jozef Stefan Institute, Jamova cesta 39, Ljubljana (Slovenia)

    2012-10-20T23:59:59.000Z

    In in-beam {gamma}-ray spectroscopy experiments, we often look for coincident detection events. Among every N events detected, coincidence search is naively of principal complexity O(N{sup 2}). When we limit the approximate width of the coincidence search window, the complexity can be reduced to O(N), permitting the implementation of the algorithm into real-time measurements, carried out indefinitely. We have built an algorithm to find simultaneous events between two detection channels. The algorithm was tested in an experiment where coincidences between X and {gamma} rays detected in two HPGe detectors were observed in the decay of {sup 61}Cu. Functioning of the algorithm was validated by comparing calculated experimental branching ratio for EC decay and theoretical calculation for 3 selected {gamma}-ray energies for {sup 61}Cu decay. Our research opened a question on the validity of the adopted value of total angular momentum of the 656 keV state (J{sup {pi}} = 1/2{sup -}) in {sup 61}Ni.

  16. Real-time Information, Uncertainty and Quantum Feedback Control

    E-Print Network [OSTI]

    Bo Qi; Daoyi Dong; Chunlin Chen; Lijun Liu; Zairong Xi

    2014-09-10T23:59:59.000Z

    Feedback is the core concept in cybernetics and its effective use has made great success in but not limited to the fields of engineering, biology, and computer science. When feedback is used to quantum systems, two major types of feedback control protocols including coherent feedback control (CFC) and measurement-based feedback control (MFC) have been developed. In this paper, we compare the two types of quantum feedback control protocols by focusing on the real-time information used in the feedback loop and the capability in dealing with parameter uncertainty. An equivalent relationship is established between quantum CFC and non-selective quantum MFC in the form of operator-sum representation. Using several examples of quantum feedback control, we show that quantum MFC can theoretically achieve better performance than quantum CFC in stabilizing a quantum state and dealing with Hamiltonian parameter uncertainty. The results enrich understanding of the relative advantages between quantum MFC and quantum CFC, and can provide useful information in choosing suitable feedback protocols for quantum systems.

  17. Real-time optimization boosts capacity of Korean olefins plant

    SciTech Connect (OSTI)

    Yoon, S. [Hyundai Petrochemical Co. Ltd., Daesan (Korea, Republic of); Dasgupta, S.; Mijares, G. [M.W. Kellogg Co., Houston, TX (United States)

    1996-06-17T23:59:59.000Z

    Real-time optimization (RTO) of Hyundai Petrochemical Co. Ltd.`s olefins complex at Daesan, South Korea, increased ethylene capacity 4% and revenues 12%, and decreased feedstock and energy usage 2.5%, with no changes in operating conditions. The project comprised RTO and advanced process control (APC) systems for the 350,000 metric ton/year (mty) ethylene plant. A similar system was implemented in the hydrotreating and benzene recovery sections of the plant`s pyrolysis-gasoline treating unit. Hyundai Petrochemical started up its olefins complex on Korea`s western seaboard in late 1991. The Daesan complex comprises 10 plants, including naphtha cracking, monomer, and polymer units. Additional support facilities include: industrial water treatment plants; electric generators; automatic storage systems; a jetty with capacity to berth 100,000 dwt and 10,000 dwt ships simultaneously; a research and development center. The plant`s capacity is 350,000 mty ethylene and 175,000 mty propylene, based on 7,200 operating hr/year. Since start-up, naphtha has been the primary feed, but the plant was designed with flexibility to process C{sub 3}/C{sub 4} (LPG) and gas oil feeds. This paper reviews the project management and decision making process along with the computerized control system design.

  18. Optimizing artificial lift operations through the use of wireless conveyed real time bottom hole data

    SciTech Connect (OSTI)

    Campbell, B.; MacKinnon, J.; Bandy, T.R.; Hampton, T.

    1996-12-31T23:59:59.000Z

    The use of an innovative wireless bottom hole pressure/temperature telemetry acquisition system in artificial lift operations can dramatically improve efficiency and optimize fluid producing rates in those wells. The tool is installed into the producing well in the vicinity of the perforations, measuring and transmitting the producing bottom hole pressures and temperatures to the surface for instantaneous control of the surface pumping motor speed. This insures the lowest possible fluid level back pressures, thus allowing for the highest possible fluid entry into the wellbore from that reservoir`s capacity. Operating costs per barrel are lowered since the maximum oil production can now be realized from existing wells. The telemetry tool is deployed with standard slickline equipment and is installed inside a well in a manner similar to ordinary pressure recorder tools. Several unique advantages of the tool are: (1) no moving parts; (2) no wireline to the surface; (3) real time measurement of bottom hole data; and (4) slickline retrievable. Future versions of the acquisition system tool will improve operating efficiency in the following ways: (1) Temperature monitoring and control of perforation scaling, tubular waxing, and tubular hydrating plugs. (2) Provide data necessary to create diagnostically predictive IPR curves through monitoring of reservoir in-flow rates. (3) Enabling early warning of water encroachment or lensing through fluid resistivity monitoring.

  19. A Utility Accrual Scheduling Algorithm for Real-Time Activities With Mutual Exclusion Resource Constraints

    E-Print Network [OSTI]

    Ravindran, Binoy

    A Utility Accrual Scheduling Algorithm for Real-Time Activities With Mutual Exclusion Resource-processor real-time scheduling algorithm called the Generic Utility Scheduling algorithm (which we will refer activities that have time con- straints specified using arbitrarily shaped time/utility functions, and have

  20. Utility Accrual Real-Time Resource Access Protocols with Assured Individual Activity Timeliness Behavior

    E-Print Network [OSTI]

    Ravindran, Binoy

    Utility Accrual Real-Time Resource Access Protocols with Assured Individual Activity Timeliness Behavior Abstract We present a class of utility accrual resource access protocols for real-time embedded systems. The proto- cols consider application activities that are subject to time/utility function time

  1. A Multicore Processor based Real-Time System for Automobile management application

    E-Print Network [OSTI]

    M., Vaidehi

    2010-01-01T23:59:59.000Z

    In this paper we propose an Intelligent Management System which is capable of managing the automobile functions using the rigorous real-time principles and a multicore processor in order to realize higher efficiency and safety for the vehicle. It depicts how various automobile functionalities can be fine grained and treated to fit in real time concepts. It also shows how the modern multicore processors can be of good use in organizing vast amounts of correlated functions to be executed in real-time with excellent time commitments. The modeling of the automobile tasks with real time commitments, organizing appropriate scheduling for various real time tasks and the usage of a multicore processor enables the system to realize higher efficiency and offer better safety levels to the vehicle. The industry available real time operating system is used for scheduling various tasks and jobs on the multicore processor.

  2. Real Time Tailpipe Emission Measurements | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L dDepartment ofList? |EnergyDepartmentMilestone ReportRealRealReal

  3. Real-Time Active Cosmic Neutron Background Reduction Methods

    SciTech Connect (OSTI)

    Mukhopadhyay, Sanjoy; Maurer, Richard; Wolff, Ronald; Mitchell, Stephen; Guss, Paul

    2013-09-01T23:59:59.000Z

    Neutron counting using large arrays of pressurized 3He proportional counters from an aerial system or in a maritime environment suffers from the background counts from the primary cosmic neutrons and secondary neutrons caused by cosmic ray?induced mechanisms like spallation and charge-exchange reaction. This paper reports the work performed at the Remote Sensing LaboratoryAndrews (RSL-A) and results obtained when using two different methods to reduce the cosmic neutron background in real time. Both methods used shielding materials with a high concentration (up to 30% by weight) of neutron-absorbing materials, such as natural boron, to remove the low-energy neutron flux from the cosmic background as the first step of the background reduction process. Our first method was to design, prototype, and test an up-looking plastic scintillator (BC-400, manufactured by Saint Gobain Corporation) to tag the cosmic neutrons and then create a logic pulse of a fixed time duration (~120 ?s) to block the data taken by the neutron counter (pressurized 3He tubes running in a proportional counter mode). The second method examined the time correlation between the arrival of two successive neutron signals to the counting array and calculated the excess of variance (Feynman variance Y2F)1 in the neutron count distribution from Poisson distribution. The dilution of this variance from cosmic background values ideally would signal the presence of man-made neutrons.2 The first method has been technically successful in tagging the neutrons in the cosmic-ray flux and preventing them from being counted in the 3He tube array by electronic vetofield measurement work shows the efficiency of the electronic veto counter to be about 87%. The second method has successfully derived an empirical relationship between the percentile non-cosmic component in a neutron flux and the Y2F of the measured neutron count distribution. By using shielding materials alone, approximately 55% of the neutron flux from man-made sources like 252Cf or Am-Be was removed.

  4. Response time satisfaction in real-time knowledge-based systems

    E-Print Network [OSTI]

    Frank, Deborah Lee

    1990-01-01T23:59:59.000Z

    . OBJECTIVE AND APPROACH. 3, 1. The Role of CLIPS. 3. 2. Real-time KBS Architecture . 3. 3. Task Control. 3. 4. Task Processing. . 3. 5. Example Scenario. 3. 6. Summary. 4. CONCLUSION . REFERENCES. Page . Vill 16 17 LIST OF FIGURES Page Figure 1... in order to perform the tasks required in the time given. The static scheduler was invoked only once, before the system actually started running and receiving tasks. The schedule, once formed, did not change unless the system was shut down...

  5. Near Real-time Data Analysis of Core-Collapse Supernova Simulations With Bellerophon

    SciTech Connect (OSTI)

    Lingerfelt, Eric J [ORNL] [ORNL; Messer, Bronson [ORNL] [ORNL; Desai, Sharvari S [University of Tennessee, Knoxville (UTK)] [University of Tennessee, Knoxville (UTK); Holt, Chastity A [Appalachian State University] [Appalachian State University; Lentz, Eric J [University of Tennessee, Knoxville (UTK)] [University of Tennessee, Knoxville (UTK)

    2014-01-01T23:59:59.000Z

    We present an overview of a software system, Bellerophon, built to support a production-level HPC application called CHIMERA, which simulates core-collapse supernova events at the petascale. Developed over the last four years, Bellerophon enables CHIMERA s geographically dispersed team of collaborators to perform data analysis in near real-time. Its n-tier architecture provides an encapsulated, end-to-end software solution that enables the CHIMERA team to quickly and easily access highly customizable animated and static views of results from anywhere in the world via a web-deliverable, cross-platform desktop application. In addition, Bellerophon addresses software engineering tasks for the CHIMERA team by providing an automated mechanism for performing regression testing on a variety of supercomputing platforms. Elements of the team s workflow management needs are met with software tools that dynamically generate code repository statistics, access important online resources, and monitor the current status of several supercomputing resources.

  6. Real time intelligent process control system for thin film solar cell manufacturing

    SciTech Connect (OSTI)

    George Atanasoff

    2010-10-29T23:59:59.000Z

    This project addresses the problem of lower solar conversion efficiency and waste in the typical solar cell manufacturing process. The work from the proposed development will lead toward developing a system which should be able to increase solar panel conversion efficiency by an additional 12-15% resulting in lower cost panels, increased solar technology adoption, reduced carbon emissions and reduced dependency on foreign oil. All solar cell manufacturing processes today suffer from manufacturing inefficiencies that currently lead to lower product quality and lower conversion efficiency, increased product cost and greater material and energy consumption. This results in slower solar energy adoption and extends the time solar cells will reach grid parity with traditional energy sources. The thin film solar panel manufacturers struggle on a daily basis with the problem of thin film thickness non-uniformity and other parameters variances over the deposited substrates, which significantly degrade their manufacturing yield and quality. Optical monitoring of the thin films during the process of the film deposition is widely perceived as a necessary step towards resolving the non-uniformity and non-homogeneity problem. In order to enable the development of an optical control system for solar cell manufacturing, a new type of low cost optical sensor is needed, able to acquire local information about the panel under deposition and measure its local characteristics, including the light scattering in very close proximity to the surface of the film. This information cannot be obtained by monitoring from outside the deposition chamber (as traditional monitoring systems do) due to the significant signal attenuation and loss of its scattering component before the reflected beam reaches the detector. In addition, it would be too costly to install traditional external in-situ monitoring systems to perform any real-time monitoring over large solar panels, since it would require significant equipment refurbishing needed for installation of multiple separate ellipsometric systems, and development of customized software to control all of them simultaneously. The proposed optical monitoring system comprises AccuStratas fiber optics sensors installed inside the thin film deposition equipment, a hardware module of different components (beyond the scope of this project) and our software program with iterative predicting capability able to control material bandgap and surface roughness as films are deposited. Our miniature fiber optics monitoring sensors are installed inside the vacuum chamber compartments in very close proximity where the independent layers are deposited (an option patented by us in 2003). The optical monitoring system measures two of the most important parameters of the photovoltaic thin films during deposition on a moving solar panel - material bandgap and surface roughness. In this program each sensor array consists of two fiber optics sensors monitoring two independent areas of the panel under deposition. Based on the monitored parameters and their change in time and from position to position on the panel, the system is able to provide to the equipment operator immediate information about the thin films as they are deposited. This DoE Supply Chain program is considered the first step towards the development of intelligent optical control system capable of dynamically adjusting the manufacturing process on-the-fly in order to achieve better performance. The proposed system will improve the thin film solar cell manufacturing by improving the quality of the individual solar cells and will allow for the manufacturing of more consistent and uniform products resulting in higher solar conversion efficiency and manufacturing yield. It will have a significant impact on the multibillion-dollar thin film solar market. We estimate that the financial impact of these improvements if adopted by only 10% of the industry ($7.7 Billion) would result in about $1.5 Billion in savings by 2015 (at the assumed 20% improvement). This can b

  7. IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING 1 Estimating and Enhancing Real-Time Data

    E-Print Network [OSTI]

    Kang, Kyoung-Don

    in a timely manner using fresh data reflecting the current market status or target positions [2]. In e--It is essential to process real-time data service requests such as stock quotes and trade transactions in a timely manner using fresh data, which represent the current real world phenomena such as the stock market status

  8. Real-time autonomous control of space habitats David Kortenkamp, Debra Schreckenghost and R. Peter Bonasso

    E-Print Network [OSTI]

    Kortenkamp, David

    Real-time autonomous control of space habitats David Kortenkamp, Debra Schreckenghost and R. Peter and challenging NASA project that will require real-time autonomous control. This paper presents the project-time autonomous control within a practical application. As such, this paper provides few answers and many

  9. Real-Time Demand Response with Uncertain Renewable Energy in Smart Grid

    E-Print Network [OSTI]

    Low, Steven H.

    Real-Time Demand Response with Uncertain Renewable Energy in Smart Grid Libin Jiang and Steven Low manages user load through real-time demand response and purchases balancing power on the spot market and demand response in the presence of uncertain renewable supply and time-correlated demand. The overall

  10. An integrated system for real-time Model Predictive Control of humanoid robots

    E-Print Network [OSTI]

    Todorov, Emanuel

    this goal. The automatic controller is based on real-time model-predictive control (MPC) applied to the full. The resulting composite cost is sent to the MPC machinery which constructs a new locally-optimal time- varying-based optimal control is called Model-Predictive Control (MPC), an approach that relies on real-time trajectory

  11. Dynamic Scheduling of Hard RealTime Applications in Open System Environment

    E-Print Network [OSTI]

    Dynamic Scheduling of Hard Real­Time Applications in Open System Environment Z. Deng J. W.­S. Liu J

  12. Graphene Signal Amplification for Sensitive and Real-Time Fluorescence Anisotropy Detection of Small Molecules

    E-Print Network [OSTI]

    Tan, Weihong

    Graphene Signal Amplification for Sensitive and Real-Time Fluorescence Anisotropy Detection graphene oxide (GO) as the signal amplifier. Because of the extraordinarily larger volume of GO

  13. Distributed Architecture for Real-time Traffic Analysis Cristian Morariu, Burkhard Stiller

    E-Print Network [OSTI]

    Boyer, Edmond

    Distributed Architecture for Real-time Traffic Analysis Cristian Morariu, Burkhard Stiller Department of Informatics, University of Zürich CH-8050, Zürich, Switzerland {morariu, stiller

  14. acquisition enabling real-time: Topics by E-print Network

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

    discusses the collection of complete real time data from different source systems such as SCADA, AMR, Databases and Internet which is pushed into an On Line Transaction Process...

  15. E-Print Network 3.0 - airway real-time magnetic Sample Search...

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

    computation. A visualization device provides virtual... Images Interactive in real-time Registered in 2D3D 12;Milgram's Reality-Virtuality Continuum Mixed... Virtual Models ...

  16. E-Print Network 3.0 - accurate real-time pcr Sample Search Results

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

    Centre Collection: Biology and Medicine 19 The University of New Mexico An NSF Integrative Graduate Summary: and Technology Park Real-Time PCR Assays for Sensitive Detection...

  17. Technique for Real-Time Measurements of Endothelial Permeability in a Microfluidic

    E-Print Network [OSTI]

    Simmons, Craig A.

    Technique for Real-Time Measurements of Endothelial Permeability in a Microfluidic Membrane Chip microfluidic platform to measure real-time perme- ability of endothelial cell monolayers on porous mem- branes of cell-free and cell-bound mem- brane layers. This technique is a highly sensitive, novel microfluidic

  18. Precomputed Radiance Transfer for Real-Time Rendering in Dynamic, Low-Frequency Lighting Environments

    E-Print Network [OSTI]

    O'Brien, James F.

    Precomputed Radiance Transfer for Real-Time Rendering in Dynamic, Low-Frequency Lighting a new, real-time method for rendering diffuse and glossy objects in low-frequency lighting environments-frequency incident lighting into transferred radiance which includes global effects like shadows and interreflections

  19. Comparative Application of Real-Time Verification Methods to an Automotive Architecture

    E-Print Network [OSTI]

    Ulm, Universität

    Comparative Application of Real-Time Verification Methods to an Automotive Architecture Steffen especially to distributed automotive architectures. The high connectivity of different control units forms approaches for the verification of real-time behavior of an automotive architecture are compared. Two tools

  20. Mixed-Criticality Multiprocessor Real-Time Systems: Energy Consumption vs Deadline Misses

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Mixed-Criticality Multiprocessor Real-Time Systems: Energy Consumption vs Deadline Misses Vincent that using the best compromise, the energy consumption can be reduced up to 17% while the percentage the energy consumption of MC systems. The energy consumption of embedded real-time systems is indeed

  1. Real time search on the web: Queries, topics, and economic value Bernard J. Jansen a,

    E-Print Network [OSTI]

    Jansen, James

    examine aggregate usage of the search engine, including number of users, queries, and terms. We term interest in a topic and the polling nature of real time queries. Concerning search topics geographical affinity, pointing to a location-based aspect to real time search. In terms of economic value, we

  2. Energy-Efficient Speed Scheduling for Real-Time Tasks under Thermal Constraints

    E-Print Network [OSTI]

    Wang, Shengquan

    Energy-Efficient Speed Scheduling for Real-Time Tasks under Thermal Constraints Shengquan Wang. We develop energy-efficient speed scheduling schemes for frame-based real-time tasks under thermal- sumption with comparison to the reactive schemes in the literature. Keywords: Energy-efficient scheduling

  3. Real-Time Disease Surveillance Using Twitter Data: Demonstration on Flu and Cancer

    E-Print Network [OSTI]

    , and text mining. The real-time analysis data is visually re- ported as U.S. disease activity map, timelinesReal-Time Disease Surveillance Using Twitter Data: Demonstration on Flu and Cancer Kathy Lee Ankit-effects, and so on. This makes publicly available social media data an invaluable resource for mining interesting

  4. Near Optimal Demand-Side Energy Management Under Real-time Demand-Response Pricing

    E-Print Network [OSTI]

    Boutaba, Raouf

    Near Optimal Demand-Side Energy Management Under Real-time Demand-Response Pricing Jin Xiao, Jae--In this paper, we present demand-side energy manage- ment under real-time demand-response pricing as a task, demand-response, energy management I. INTRODUCTION The growing awareness of global climate change has

  5. Microfluidic single cell real-time PCR for comparative analysis of gene expression patterns

    E-Print Network [OSTI]

    Quake, Stephen R.

    Microfluidic single cell real-time PCR for comparative analysis of gene expression patterns collection. We present here a high-content microfluidic real-time platform as a powerful tool expression; dynamic assay; microfluidic; pluripotent INTRODUCTION Novel genomic technologies have paved

  6. Precomputed Wave Simulation for Real-Time Sound Propagation of Dynamic Sources in Complex Scenes

    E-Print Network [OSTI]

    North Carolina at Chapel Hill, University of

    Precomputed Wave Simulation for Real-Time Sound Propagation of Dynamic Sources in Complex Scenes of North Carolina at Chapel Hill Abstract We present a method for real-time sound propagation that captures all wave effects, including diffraction and reverberation, for multi- ple moving sources and a moving

  7. Handles Revisited: Optimising Performance and Memory Costs in a Real-Time Collector

    E-Print Network [OSTI]

    Kent, University of

    Handles Revisited: Optimising Performance and Memory Costs in a Real-Time Collector Tomas Kalibera garbage collectors must update all references to ob- jects they move. Updating is a lengthy operation references have been updated which, in a real-time collector, must be done incrementally. One solution

  8. REAL-TIME ACTIVE PIPELINE INTEGRITY DETECTION (RAPID) SYSTEM FOR CORROSION DETECTION AND QUANTIFICATION

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    REAL-TIME ACTIVE PIPELINE INTEGRITY DETECTION (RAPID) SYSTEM FOR CORROSION DETECTION detection Acellent has developed a Real-time Active Pipeline Integrity Detection (RAPID) system. The RAPID system utilizes a sensor network permanently bonded to the pipeline structure along with in

  9. NSTX-U Advances in Real-time C++11 on Linux

    SciTech Connect (OSTI)

    Erickson, Keith G

    2014-04-01T23:59:59.000Z

    Programming languages like C and Ada combined with proprietary embedded operating systems have dominated the real-time application space for decades. The new C++11standard includes native, language-level support for concurrency, a required feature for any nontrivial event-oriented real-time software. Threads, Locks, and Atomics now exist to provide the necessary tools to build the structures that make up the foundation of a complex real-time system. The National Spherical Torus Experiment Upgrade (NSTX-U) at the Princeton Plasma Physics Laboratory (PPPL) is breaking new ground with the language as applied to the needs of fusion devices. A new Digital Coil Protection System (DCPS) will serve as the main protection mechanism for the magnetic coils, and it is written entirely in C++11 running on Concurrent Computer Corporation's real-time operating system, RedHawk Linux. It runs over 600 algorithms in a 5 kHz control loop that determine whether or not to shut down operations before physical damage occurs. To accomplish this, NSTX-U engineers developed software tools that do not currently exist elsewhere, including real-time atomic synchronization, real-time containers, and a real-time logging framework. Together with a recent (and carefully configured) version of the GCC compiler, these tools enable data acquisition, processing, and output using a conventional operating system to meet a hard real-time deadline (that is, missing one periodic is a failure) of 200 microseconds.

  10. Modeling and rendering heterogeneous fog in real-time using B-Spline wavelets

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Modeling and rendering heterogeneous fog in real-time using B-Spline wavelets Anthony Giroud method to render heterogeneous fog in real-time. The extinction function of our fog, related to its to obtain a decomposition in both space and frequency domains. A grid traversal is used to render the fog

  11. TetSplat: Real-Time Rendering and Volume Clipping of Large Unstructured Tetrahedral Meshes

    E-Print Network [OSTI]

    TetSplat: Real-Time Rendering and Volume Clipping of Large Unstructured Tetrahedral Meshes Ken-resolution data representations. These compact hierarchical data structures are then adaptively rendered and probed in real-time on a commodity PC. Our point-based rendering algorithm, which is inspired by QSplat

  12. Schedulability Analysis for Fixed Priority Real-Time Systems with Energy-Harvesting

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Schedulability Analysis for Fixed Priority Real-Time Systems with Energy-Harvesting Yasmina sufficient schedulability tests for fixed-priority pre-emptive scheduling of a real-time system under energy constraints. In this problem, energy is harvested from the ambient environment and used to replenish a storage

  13. Real-time observation of lithium fibers growth inside a nanoscale lithium-ion battery

    E-Print Network [OSTI]

    Endres. William J.

    to observe the real-time nucleation and growth of the lithium fibers inside a nanoscale Li-ion battery. Our needed for safe and high power Li-ion batteries. VC 2011 American Institute of Physics. [doi:10Real-time observation of lithium fibers growth inside a nanoscale lithium-ion battery Hessam

  14. Sismos l'Ecole: A Worldwide Network of Real-Time Seismometers in Schools

    E-Print Network [OSTI]

    Nolet, Guust

    Sismos à l'Ecole: A Worldwide Network of Real-Time Seismometers in Schools by F. Courboulex, J. L countries in the world. Thanks to Sismos à l'Ecole (SaE) network stations, acces- sible in real time

  15. iDSRT: Integrated Dynamic Soft Real-time Architecture for Critical Infrastructure Data

    E-Print Network [OSTI]

    Nahrstedt, Klara

    processor and sent over a wired/wireless LAN. End-to-end delay of PMU data has to be guaran- teed for realiDSRT: Integrated Dynamic Soft Real-time Architecture for Critical Infrastructure Data Delivery}@illinois.edu University of Illinois at Urbana-Champaign, Urbana IL 61801, USA Abstract. The real-time control data

  16. Formal Methods for the Specification and Design of RealTime Safety Critical

    E-Print Network [OSTI]

    Ostroff, Jonathan S.

    Formal Methods for the Specification and Design of RealTime Safety Critical Systems \\Lambda Jonathan S. Ostroff April, 1992 Abstract Safety critical computers increasingly affect nearly every aspect, designing and verifying realtime sys tems, so as to improve their safety and reliability. \\Lambda

  17. RealTime Robot Motion Planning Using Rasterizing Computer Graphics Hardware

    E-Print Network [OSTI]

    Richardson, David

    , Ithaca, N.Y. 14853 y Assistant Professor and Director, Computer Science Robotics Labora tory, DepartmentRealTime Robot Motion Planning Using Rasterizing Computer Graphics Hardware Jed Lengyel \\Lambda Mark Reichert \\Lambda Bruce R. Donald y Donald P. Greenberg z Abstract We present a realtime robot

  18. SOFT REAL-TIME SCHEDULING OF NETWORKED CONTROL SYSTEMS WITH DROPOUTS GOVERNED BY A MARKOV CHAIN

    E-Print Network [OSTI]

    Lemmon, Michael

    SOFT REAL-TIME SCHEDULING OF NETWORKED CONTROL SYSTEMS WITH DROPOUTS GOVERNED BY A MARKOV CHAIN QIANG LING, MICHAEL D. LEMMON Abstract. This paper derives an equation for a networked control system as a specification on the quality of service (QoS) delivered by real-time schedulers in the communication network

  19. Optimal Real-Time Scheduling of Control Tasks with State Feedback Resource Allocation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Optimal Real-Time Scheduling of Control Tasks with State Feedback Resource Allocation Mohamed El for the optimal integrated control and real-time scheduling of control tasks. First, the problem of the optimal integrated control and non- preemptive off-line scheduling of control tasks in the sense of the H2

  20. Mercury: A Memory-Constrained Spatio-temporal Real-time Search on Microblogs

    E-Print Network [OSTI]

    Bernstein, Phil

    Mercury: A Memory-Constrained Spatio-temporal Real-time Search on Microblogs Amr Magdy1§ , Mohamed Mercury; a system for real-time support of top-k spatio-temporal queries on microblogs, where users are able to browse recent microblogs near their locations. With high arrival rates of microblogs, Mercury

  1. Building Human-Level AI for Real-Time Strategy Games Ben G. Weber

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Building Human-Level AI for Real-Time Strategy Games Ben G. Weber Expressive Intelligence Studio UC to build robust intelligence. In particular, real- time strategy games provide a multi-scale challenge by studying a corpus of games, building models for anticipating op- ponent actions, and practicing within

  2. Transfer Learning of Hierarchical Task-Network Planning Methods in a Real-Time Strategy Game

    E-Print Network [OSTI]

    Muoz-Avila, Hctor

    simulations. Using simulations during the planning and learning process enables the system to get information, and simulation in a real-time strategy game engine. Introduction Learning in the context of automated planningTransfer Learning of Hierarchical Task-Network Planning Methods in a Real-Time Strategy Game

  3. Real-Time Electricity Markets Material from this introduction was adapted from [1].

    E-Print Network [OSTI]

    McCalley, James D.

    ), or balancing market. #12;2 A third market, called the operating reserve market, addresses ancillary services of products: Energy: based on resource offers and demand bids Regulating reserve: for real-time balancing1 Real-Time Electricity Markets Material from this introduction was adapted from [1

  4. Computer Graphics in Real-time Docking with Energy Calculation and Minimization

    E-Print Network [OSTI]

    Levitt, Michael

    Computer Graphics in Real-time Docking with Energy Calculation and Minimization N. Pattabiraman, M. Levitt*, T.E. Ferrin, R. Langridge Computer Graphics Laboratory, Department of Pharmaceutical Chemistry 1985 We describe a real-time docking method using molecular graphics and high-speed calculation

  5. Real-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation

    E-Print Network [OSTI]

    Low, Steven H.

    @caltech.edu Steven H. Low California Inst. of Tech. slow@caltech.edu ABSTRACT Real-time demand response is potential loads, including electric vehicles and smart appliances, will participate in demand response smart grid, deferrable load control, demand response 1. INTRODUCTION Real-time demand response seeks

  6. Real-Time Game Design of Pac-Man Using Fuzzy Logic

    E-Print Network [OSTI]

    Parker, Gary B.

    , fuzzy logic has been chosen as the basis for the intelligent control of the ghosts' behavior1 Real-Time Game Design of Pac-Man Using Fuzzy Logic Adnan Shaout, Brady King, and Luke Reisner approaches. Keywords: Fuzzy Logic, Artificial Intelligence, Intelligent Agents, Real-Time, Interactive, Game

  7. A REAL TIME 3D VISUALIZATION PROTOTYPE FOR INTERVENTIONAL MAGNETIC RESONANCE IMAGING

    E-Print Network [OSTI]

    Schumann, Heidrun

    A REAL TIME 3D VISUALIZATION PROTOTYPE FOR INTERVENTIONAL MAGNETIC RESONANCE IMAGING JENS FISCHER.weiss@pfh.research.philips.com HEIDRUN SCHUMANN University of Rostock, Computer Science Department, D­18051 Rostock,Germany schumann radiologists during invasive and non­invasive magnetic resonance imaging. We use pre­acquired and real time

  8. Real Time Biomedical Data Streaming Platform (RIMES): a data-intensive virtual environment

    E-Print Network [OSTI]

    Schulze, Jürgen P.

    Real Time Biomedical Data Streaming Platform (RIMES): a data-intensive virtual environment Kejun@ucsd.edu Abstract - In this paper we present Real tIme bioMEdical data Streaming platform (RIMES), a data of California, San Diego. RIMES extends scientists' desktops to biomedical grid computation resources and mass

  9. Dynamics and real-time optimal control of satellite attitude and satellite formation systems

    E-Print Network [OSTI]

    Yan, Hui

    2006-10-30T23:59:59.000Z

    In this dissertation the solutions of the dynamics and real-time optimal control of magnetic attitude control and formation flying systems are presented. In magnetic attitude control, magnetic actuators for the time-optimal rest-to-rest maneuver...

  10. Verification of Probabilistic Real-time Systems Marta Kwiatkowska1

    E-Print Network [OSTI]

    Oxford, University of

    widely taken up (downloaded more than 20,000 times) and used for quan- titative verification in a broad of (priced) probabilistic timed automata. These model systems exhibiting probabilistic, nondeterministic-time characteristics, through support for verification of (priced) probabilistic timed automata. PRISM already provides

  11. In Proceedings of RTSS'94: The 14th IEEE Real-Time System Symposium, San Juan, Puerto Rico, Dec 1994. Timeliness via Speculation for Real-Time Databases

    E-Print Network [OSTI]

    Bestavros, Azer

    . Pessimistic (PCC) protocols detect con icts as soon as they occur and resolve them using blocking. Optimistic (OCC) protocols detect con icts at transac- tion commit time and resolve them using rollbacks. For real-time databases, blockages and rollbacks are hazards that increase the likelihood of transactions missing

  12. Concept Paper for Real-Time Temperature and Water QualityManagement for San Joaquin River Riparian Habitat Restoration

    SciTech Connect (OSTI)

    Quinn, Nigel W.T.

    2004-12-20T23:59:59.000Z

    The San Joaquin River Riparian Habitat Restoration Program (SJRRP) has recognized the potential importance of real-time monitoring and management to the success of the San Joaquin River (SJR) restoration endeavor. The first step to realizing making real-time management a reality on the middle San Joaquin River between Friant Dam and the Merced River will be the installation and operation of a network of permanent telemetered gauging stations that will allow optimization of reservoir releases made specifically for fish water temperature management. Given the limited reservoir storage volume available to the SJJRP, this functionality will allow the development of an adaptive management program, similar in concept to the VAMP though with different objectives. The virtue of this approach is that as management of the middle SJR becomes more routine, additional sensors can be added to the sensor network, initially deployed, to continue to improve conditions for anadromous fish.

  13. Condition Monitoring System for Reinforced

    E-Print Network [OSTI]

    Painter, Kevin

    containing dissolved ionic species such as chlorides. Since concrete is a porous material, with timeCondition Monitoring System for Reinforced Concrete Structures PROBLEM THIS TECHNOLOGY SOLVES: Patent pending concrete condition monitoring system providing `real-time' information on temperature

  14. Development and application of a real time lead-in-air analyzer in controlling lead exposure at a primary lead smelter

    SciTech Connect (OSTI)

    Smith, W.J.; Dekker, D.L.; Greenwood-Smith, R.

    1986-12-01T23:59:59.000Z

    To assist in locating and quantifying fugitive emissions in a primary lead smelter, a real time lead-in-air analyzer has been developed. Dust is collected on paper tape filters and the lead analyzed by X-ray fluorescence. The unit has been used successfully to assist in the implementation of an engineering control monitoring program.

  15. Staff Radiation Doses in a Real-Time Display Inside the Angiography Room

    SciTech Connect (OSTI)

    Sanchez, Roberto, E-mail: rmsanchez.hcsc@salud.madrid.org; Vano, E.; Fernandez, J. M. [Hospital Clinico San Carlos, Medical Physics Department (Spain); Gallego, J. J. [Universidad Complutense de Madrid, Radiology Department (Spain)

    2010-12-15T23:59:59.000Z

    MethodsThe evaluation of a new occupational Dose Aware System (DAS) showing staff radiation doses in real time has been carried out in several angiography rooms in our hospital. The system uses electronic solid-state detectors with high-capacity memory storage. Every second, it archives the dose and dose rate measured and is wirelessly linked to a base-station screen mounted close to the diagnostic monitors. An easy transfer of the values to a data sheet permits further analysis of the scatter dose profile measured during the procedure, compares it with patient doses, and seeks to find the most effective actions to reduce operator exposure to radiation.ResultsThe cumulative occupational doses measured per procedure (shoulder-over lead apron) ranged from 0.6 to 350 {mu}Sv when the ceiling-suspended screen was used, and DSA (Digital Subtraction Acquisition) runs were acquired while the personnel left the angiography room. When the suspended screen was not used and radiologists remained inside the angiography room during DSA acquisitions, the dose rates registered at the operator's position reached up to 1-5 mSv/h during fluoroscopy and 12-235 mSv/h during DSA acquisitions. In such case, the cumulative scatter dose could be more than 3 mSv per procedure.ConclusionReal-time display of doses to staff members warns interventionists whenever the scatter dose rates are too high or the radiation protection tools are not being properly used, providing an opportunity to improve personal protection accordingly.

  16. Real-Time Ensemble Control with Reduced-Order Modeling

    E-Print Network [OSTI]

    Lin, Binghuai

    The control of spatially distributed systems is often complicated by significant uncertainty about system inputs, both time-varying exogenous inputs and time-invariant parameters. Spatial variations of uncertain parameters ...

  17. Real-Time Virus Trapping and Fluorescent Imaging in Microfluidic

    E-Print Network [OSTI]

    Bashir, Rashid

    particles; however, this method requires the samples to be dried, fixed, coated, and laboriously prepared time, the images were collected with a computer running a video image capture

  18. Real-Time Dynamic Brake Assessment Conduct a proof-of-concept

    E-Print Network [OSTI]

    Real-Time Dynamic Brake Assessment Purpose Conduct a proof-of-concept test to examine the Federal Motor Carrier Safety Administration's Vehicle and Roadside Operations Division Concept stemming conducted for the National Highway Transportation Safety Administration. Signals to be collected Real

  19. An off-line multiprocessor real-time scheduling algorithm to reduce static energy consumption

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    An off-line multiprocessor real-time scheduling algorithm to reduce static energy consumption, France laurent.pautet@telecom-paristech.fr Abstract--Energy consumption of highly reliable real dynamic energy consumption. This paper aims to propose a new off-line schedul- ing algorithm to put

  20. EcoMobile: Energy-aware Real-time Framework for Multicore Mobile Systems1

    E-Print Network [OSTI]

    Cheng, Albert M. K.

    EcoMobile: Energy-aware Real-time Framework for Multicore Mobile Systems1 B. Liu, Y. Wen, F. Liu, Y://www.cs.uh.edu Technical Report Number UH-CS-11-09 October 23, 2011 Keywords: mobile system, energy-aware, real plan to build an energy-aware framework for multicore mobile systems which extends Android with two

  1. Real-Time Systems, 24, 153169, 2003 # 2003 Kluwer Academic Publishers. Manufactured in The Netherlands.

    E-Print Network [OSTI]

    Liu, Xue

    , University of Illinois at Urbana-Champaign Abstract. Many real-time systems, such as manufacturing plants, have long life cycles. To enable the realization of technological innovations and to mitigate the risk and cost of bringing new control technologies into functioning systems, ¯exible and reliable real

  2. Real-Time Detection of Packet Drop Attacks on Synchrophasor Data

    E-Print Network [OSTI]

    Sikdar, Biplab

    , NY, 12180 Abstract--The importance of phasor measurement unit (PMU) or synchrophasor data towardsReal-Time Detection of Packet Drop Attacks on Synchrophasor Data Seemita Pal, Biplab Sikdar and Joe attack, where the adversary arbitrarily drops packets with synchrophasor data. This paper develops a real

  3. Time-dependent density functional theory with ultrasoft pseudopotentials: Real-time electron propagation across a molecular junction

    E-Print Network [OSTI]

    Lin, Xi

    Time-dependent density functional theory with ultrasoft pseudopotentials: Real-time electron 2006 A practical computational scheme based on time-dependent density functional theory TDDFT density functional theory22 TDDFT . Density functional theory DFT 23 with the Kohn-Sham reference kinetic

  4. Energy efficient scheduling techniques for real-time embedded systems

    E-Print Network [OSTI]

    Prathipati, Rajesh Babu

    2004-09-30T23:59:59.000Z

    Battery-powered portable embedded systems have been widely used in many applications. These embedded systems have to concurrently perform a multitude of complex tasks under stringent time constraints. As these systems become more complex...

  5. Prototyping the R-Shell Real-Time Environment

    E-Print Network [OSTI]

    Oswal, Snehal M.

    1993-01-01T23:59:59.000Z

    Scheduling Agents to Resource Managers request arrives, it will be entered into a buffer space for the dispatcher to handle at a later time. This design was used to keep the resource manager from missing messages. The dispatcher attempts to schedule jobs... 1. Allocation - allocate resources to appropriate tasks. '2. Scheduling - order tasks to increase through-put snd timing correctness. :1. Dispatching - execute tasks according to the scheilule. By integrating CPU scheduling snd resource allocation...

  6. Energy-Efficient Duplex and TMR Real-Time Systems Appeared in the IEEE Real-Time Systems Symposium, Dec 2002

    E-Print Network [OSTI]

    Melhem, Rami

    for autonomous critical missions need such degrees of re- liability, but energy consumption becomes a dominant the energy used by reliable computers onboard autonomous vehicles. The conservation allows these systems of electrical power for operation and cooling. Examples where energy consumption and real time are of paramount

  7. Real-time combustion controls and diagnostics sensors (CCADS)

    DOE Patents [OSTI]

    Thornton, Jimmy D. (Morgantown, WV); Richards, George A. (Morgantown, WV); Dodrill, Keith A. (Fairmont, WV); Nutter, Jr., Roy S. (Morgantown, WV); Straub, Douglas (Morgantown, WV)

    2005-05-03T23:59:59.000Z

    The present invention is directed to an apparatus for the monitoring of the combustion process within a combustion system. The apparatus comprises; a combustion system, a means for supplying fuel and an oxidizer, a device for igniting the fuel and oxidizer in order to initiate combustion, and a sensor for determining the current conducted by the combustion process. The combustion system comprises a fuel nozzle and an outer shell attached to the combustion nozzle. The outer shell defines a combustion chamber. Preferably the nozzle is a lean premix fuel nozzle (LPN). Fuel and an oxidizer are provided to the fuel nozzle at separate rates. The fuel and oxidizer are ignited. A sensor positioned within the combustion system comprising at least two electrodes in spaced-apart relationship from one another. At least a portion of the combustion process or flame is between the first and second electrodes. A voltage is applied between the first and second electrodes and the magnitude of resulting current between the first and second electrodes is determined.

  8. Extending RISMC Capabilities for Real-Time Diagnostics and Prognostics

    SciTech Connect (OSTI)

    curtis smith; Mandelli, Diego

    2014-11-01T23:59:59.000Z

    Quick and effective accident management is essential in any industry in order to limit and contain possible threats to both people and environment/assets. This is in particular relevant in the nuclear industry where accidents may have major impacts from an economic, health and societal point of view. As an example, the Fukushima Dai-ichi nuclear power plant accident highlighted the importance of the ability of plant operators and plant staff to react quickly and effectively in accident conditions. This particular event showed the importance of being able to: Determine/estimate the actual status of the plant (i.e., diagnosis) when the monitoring system is corrupted or partially unavailable, and, Forecast its future evolution (i.e., prognosis). In this paper we want to describe a research direction geared toward the development of a new set of advanced diagnosis and prognosis tools. We employ innovative data mining and machine learning techniques that are able to infer plant status and mimic the plants full temporal behavior in order to assist the reactor operators during an accident scenario.

  9. MIDWEST ISO CO-OPTIMIZATION BASED REAL-TIME DISPATCH AND PRICING OF ENERGY AND ANCILLARY SERVICES

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    day-ahead counterpart, real-time locational marginal prices (LMP) are calculated every fiveMIDWEST ISO CO-OPTIMIZATION BASED REAL-TIME DISPATCH AND PRICING OF ENERGY AND ANCILLARY SERVICES-time dispatch and pricing. The RT SCED formulation at the core of the real-time dispatch and pricing market

  10. Integrating Real Time and Power Management in a Real System Martin P. Lawitzky

    E-Print Network [OSTI]

    § Stefan M. Petters§ NICTA Sydney, Australia § University of New South Wales Sydney, Australia ¶ TU M. This enables the use of the dynamic slack caused by the variability of execution time, to reduce energy and other thermal dissipation devices, a limited power supply (e.g. a solar powered system), or simply

  11. Journal of real time image processing manuscript No. (will be inserted by the editor)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Palhano Xavier de Fontes · Guillermo Andrade Barroso · Pierre Hellier Real time ultrasound image denoising, Guillermo Andrade Barroso · Pierre Hellier INRIA Centre de Recherche Rennes Bretagne Atlantique 35 042

  12. Ris-R-1174(EN) RTMOD: Real-Time MODel Evaluation

    E-Print Network [OSTI]

    to simulate the atmospheric dispersion of harmful materials, as radioactive pollutants. RTMOD is structured evaluation for the inter-comparison of real-time forecasts produced by long-range atmospheric dispersion

  13. Successful Real Time Pricing (RTP) Tieline Control Must Do More Than Save Money

    E-Print Network [OSTI]

    Robinson, J.

    2008-01-01T23:59:59.000Z

    Industrial cogeneration facilities are finding electrical procurement contracts with Real Time Pricing (RTP) clauses attractive. By accepting a portion of the variable energy cost risk, the industrial can reduce the average cost of electricity...

  14. Revise CS 552: Distributed Systems to CS552: Distributed Real-Time Systems

    E-Print Network [OSTI]

    Heller, Barbara

    Text Book: Real-Time Systems by Jane W.S. Liu, Prentice Hall, 2000 Research papers: Research papers Liu's book 1 #12;­ Resources and resource access control ­ Multiprocessor scheduling, resource access

  15. Closed-loop Real-time Control of a Novel Linear Magnetostrictive Actuator

    E-Print Network [OSTI]

    Chen, Chien-Fan

    2010-10-12T23:59:59.000Z

    This thesis presents the design of various closed-loop real-time control of a novel linear magnetostrictive actuator. The novel linear magnetostrictive actuator which uses Terfenol-D as the magnetostrictive material was developed by Sadighi...

  16. Real-Time Cloud Rendering Mark J. Harris and Anselmo Lastra

    E-Print Network [OSTI]

    North Carolina at Chapel Hill, University of

    Real-Time Cloud Rendering Mark J. Harris and Anselmo Lastra Department of Computer Science for future research in section 5. Figure 1: Realistic clouds in the game "Ozzy's Black Skies". #12;2 Harris

  17. Dedicated optoelectronic stochastic parallel processor for real-time image processing: motion-detection

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Dedicated optoelectronic stochastic parallel processor for real-time image processing: motion and performance analysis of a dedicated optoelectronic processor that implements stochastic optimization, providing compact, high-bandwidth intrachip optoelectronic interconnects. We have modeled the oper- ation

  18. Geek-Up[09.03.10] -- Innovative Silicon Wafers, Real-Time Power...

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

    difference. We buy power to decrease the system load or sell to increase it. Or, the hydro operator can increase or decrease generation at the dams." Learn how BPA's real-time...

  19. A smartphone interface for a wireless EEG headset with real-time 3D reconstruction

    E-Print Network [OSTI]

    and 3D reconstruction. Introduction Functional brain imaging techniques including fMRI and PET provide gestures (see Fig. 1). Evaluation A major concern in mobile real-time systems is the power consumption

  20. A software based, 13 kbits/s real-time internet codec

    E-Print Network [OSTI]

    Randolph, Marc A

    1996-01-01T23:59:59.000Z

    . The quality may be 'scaled" up by allocating additional bits to the subbands. This coder has been successfully implemented in real-time on a Sun Sparc 10 platform....

  1. Development of Real-time Closed-loop Control Algorithms for Grid-scale Battery

    E-Print Network [OSTI]

    i Development of Real-time Closed-loop Control Algorithms for Grid-scale Battery Energy Storage Systems Prepared for the U.S. Department of Energy Office of Electricity Delivery and Energy ................................................................................................. 23 6.2. Data Storage

  2. A Two-Layered Management Architecture for Building Adaptive Real-time Systems

    E-Print Network [OSTI]

    Ungerer, Theo

    . The ASoC project aims at the development of an architecure and design methodology to embed autonomic the fundamental concepts of software architectures for embedded real- time systems in depth. Solomon et al

  3. Energy Saving Measures of Heating Network - Computerized Real-time Control System

    E-Print Network [OSTI]

    Zhang, J.

    2006-01-01T23:59:59.000Z

    ICEBO2006, Shenzhen, ChinaHVAC Technologies for Energy Efficiency, Vol. IV-12-9 Energy Saving Measures of Heating Network ?Computerized Real-time Control System Jieyan Zhang Service Bureau, Deputy-director, State...

  4. Real-Time Data Assimilation for Operational Ensemble Streamflow Forecasting JASPER A. VRUGT

    E-Print Network [OSTI]

    Vrugt, Jasper A.

    Real-Time Data Assimilation for Operational Ensemble Streamflow Forecasting JASPER A. VRUGT Earth values must be specified (Table 1). Corresponding author address: Jasper Vrugt, Earth and Envi- ronmental

  5. Real-time impluse-based rigid body simulation and rendering

    E-Print Network [OSTI]

    Yuksel, Can

    2007-09-17T23:59:59.000Z

    The purpose of this thesis is to develop and demonstrate a physically based rigid body simulation with a focus on simplifications to achieve real-time performance. This thesis aims to demonstrate that by improving the efficiency with simplified...

  6. 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....

  7. header for SPIE use Real-Time Weather Data on Terrain

    E-Print Network [OSTI]

    Shaw, Chris

    behave in the presence of hills or mountains and other features. Keywords: Real-time visualization into a global geospatial structure based on a forest of quadtrees [Dav98, Dav99, Fau00]. Even the volumetric

  8. A realistic method for real-time obstacle avoidance without the Calculation of Cspace

    E-Print Network [OSTI]

    extensively used for the inspection, maintenance and repair of offshore structures in both deep and shallow,45,46,30,31]. Such a real-time system normally consists of the following tasks: 1. dynamic plant identification; 2. low

  9. Journal of Robotica 1 A realistic method for real-time obstacle

    E-Print Network [OSTI]

    extensively used for the inspection, maintenance and repair of offshore structures in both deep and shallow,45,46,30,31]. Such a real-time system normally consists of the following tasks: 1. dynamic plant identification; 2. low

  10. On Creating a Native Real-Time-Strategy Game User Interface for Multi-Touch Devices

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    |sorzech|wwong3}@ucsc.edu, {fire}@soe.ucsc.edu ABSTRACT Historically, real-time strategy video games, such as Star, interaction, video games, touch-screen, iPad 1. INTRODUCTION On many mobile platforms, multiple compelling

  11. atom-resolved real-time studies: Topics by E-print Network

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

    are collected in human-avatar promising results about the role and functioning of joint attention in human-avatar interactions. Keywords Yu, Chen 7 REVIEW ARTICLE Real-time...

  12. Towards RealTime ObjectZ Graeme Smith \\Lambda and Ian Hayes y\\Lambda

    E-Print Network [OSTI]

    Smith, Graeme

    Towards Real­Time Object­Z Graeme Smith \\Lambda and Ian Hayes y\\Lambda \\Lambda Software of areas including multiprocessing [22], telecommunications [19], multi­media standards [10

  13. Towards Real-Time and Memory Efficient Predictions of Valve States in Diesel Engines

    E-Print Network [OSTI]

    Zell, Andreas

    Towards Real-Time and Memory Efficient Predictions of Valve States in Diesel Engines Philippe Komma T¨ubingen, Germany {philippe.komma, andreas.zell}@uni-tuebingen.de system for a diesel engine

  14. Energy-optimal schedules of real-time jobs with hard deadlines

    E-Print Network [OSTI]

    George, John Vijoe

    2005-11-01T23:59:59.000Z

    In this thesis, we develop algorithms that make optimal use of frequency scaling to schedule jobs with real??time requirements. Dynamic voltage scaling is a technique used to reduce energy consumption in wide variety of systems. Reducing supply...

  15. Modeling real-time human-automation collaborative scheduling of unmanned vehicles

    E-Print Network [OSTI]

    Clare, Andrew S

    2013-01-01T23:59:59.000Z

    Recent advances in autonomy have enabled a future vision of single operator control of multiple heterogeneous Unmanned Vehicles (UVs). Real-time scheduling for multiple UVs in uncertain environments will require the ...

  16. CPS : Small : Dynamically Managing the Real-time Fabric of a Wireless Sensor-Actuator Network

    E-Print Network [OSTI]

    Lemmon, Michael

    CPS : Small : Dynamically Managing the Real-time Fabric of a Wireless Sensor-Actuator Network 1 as a multi-player game between applications (users) that is essentially a network utility maximization (NUM

  17. Real time grid congestion management in presence of high penetration of wind energy

    E-Print Network [OSTI]

    Boyer, Edmond

    Real time grid congestion management in presence of high penetration of wind energy A. Vergnol1 , J », « Wind energy », « Variable speed drive » Abstract With the increased use of wind energy the power

  18. Real-Time Motion Planning With Applications to Autonomous Urban Driving

    E-Print Network [OSTI]

    Kuwata, Yoshiaki

    This paper describes a real-time motion planning algorithm, based on the rapidly-exploring random tree (RRT) approach, applicable to autonomous vehicles operating in an urban environment. Extensions to the standard RRT are ...

  19. Development of environmental and oceanographic real-time assessment system for the near-shore environment

    E-Print Network [OSTI]

    Ojo, Temitope O.

    2006-08-16T23:59:59.000Z

    of the constituents of interest. This study is focused on the development of a framework that couples real-time measurements and numerical simulation for tracking constituents in surface waters. The parameterization of the mixing and turbulent diffusion impacts...

  20. Evaluating Policies and Mechanisms for Supporting Embedded, Real-Time Applications with CORBA 3.0

    E-Print Network [OSTI]

    , and weight/power consumption, software techniques used to develop real-time systems have historically lagged,schmidtg@uci.edu Irfan Pyarali, and David L. Levine Electrical & Computer Engineering Dept. ffredk

  1. Fuzzy adaptive connection admission control for real-time applications in ATM-based heterogeneous networks

    E-Print Network [OSTI]

    Zhang, Ying-Bi

    1997-01-01T23:59:59.000Z

    In this thesis, I propose a fuzzy adaptive connection admission control (CAC) approach for real-time applications in ATM-Based heterogeneous networks (ABHN) where ATM serves as a backbone that connects different LANs by interface devices. This type...

  2. Getting a Better Performing Building: Commissioning and Real Time Data Analysis

    E-Print Network [OSTI]

    Barba, M.

    2002-01-01T23:59:59.000Z

    based on real time system operational data. Because of the dynamic nature and complexity of commercial building HVAC systems, they are the perfect target for periodic performance assessments, or recommissioning. Today's buildings are expected to supply...

  3. Differentiated RealTime Data Services for ECommerce Applications \\Lambda

    E-Print Network [OSTI]

    Stankovic, John A.

    services are poor at processing user requests in a timely manner using fresh data. To address this problem data, e.g., current stock prices, to high level aggregated data, e.g., recommended selling of stock prices and perform different operations based on the current market status. Furthermore

  4. Model for LMFBR core transient analysis in real-time

    SciTech Connect (OSTI)

    Tzanos, C.P.

    1986-01-01T23:59:59.000Z

    This paper discusses the modeling of LMFBR core transients. It is shown that with a proper choice of shape functions a nodal approximation of the coolant, cladding, and fuel temperature distributions leads to adequately accurate power and temperature predictions, as well as adequately short computation times.

  5. Real Time Computational Algorithms for Eddy Current Based Damage Detection

    E-Print Network [OSTI]

    ;cant reduction in computational time. 1. Introduction Nondestructive evaluation (NDE) is the process of examining a material or article without impairing its future usefulness. NDE is sometimes referred) measure geometric characteristics. Some typical structures or products inspected through the use of NDE

  6. Real Time Control Design for Mobile Robot Fault Tolerant Control.

    E-Print Network [OSTI]

    Kuehnlenz, Kolja

    Mobile Robot. Cristian Axenie Automation and Industrial Informatics Department Razvan Solea, Lecturer, Ph-time distributed control application with fault tolerance capabilities for differential wheeled mobile robots mobile robot the author has been able to develop a hierarchical software application that minimizes costs

  7. Real-Time Selective Harmonic Minimization in Cascaded Multilevel Inverters

    E-Print Network [OSTI]

    Tolbert, Leon M.

    time but the output fundamental voltage will stay constant and the harmonic will still meet capability of generalizing solutions. What this means is that, if the correct range of data are used sources along with its operation as in a solar panel. This means that during a day of operation, the solar

  8. Development of a real-time quantitative hydrologic forecasting model

    E-Print Network [OSTI]

    Bell, John Frank

    1986-01-01T23:59:59.000Z

    TIME ) Ftgure 2. porno(lal f loni daaaga reduction aada possible hy a gives ruspanav ties (acr rrata forecast Ivad (Iacl. The do(ted ll?es In tha figure gives wt essnple uhlclt ahoun that as tha fnrecast land tlaa Incrva. as frua 4 to l4 hours...

  9. Real-time condition assessment of RAPTOR telescope systems

    SciTech Connect (OSTI)

    Stull, Chris [Los Alamos National Laboratory; Taylor, Stuart [Los Alamos National Laboratory; Wren, James [Los Alamos National Laboratory; Farrar, Charles [Los Alamos National Laboratory; Park, Gyuhae [Los Alamos National Laboratory

    2010-11-30T23:59:59.000Z

    The RAPid Telescopes for Optical Response (RAPTOR) observatory network consists of several robotic astronomical telescopes primarily designed to search for astrophysical transients called a gamma-ray bursts (GRBs). Although intrinsically bright, GRBs are difficult to detect because of their short duration. Typically, they are first observed by satellites that then relay the coordinates of the GRB to a ground station which, in turn, distributes the coordinates over the internet so that ground based observers can perform follow-up observations. Typically the ground based observations begin after the GRB has ended and only residual emiSSion (the 'afterglow') is left. However, if the satellite relays the GRB coordinates quickly enough, a 'fast' robotic telescope on the ground may be able to catch the GRB in progress. The RAPTOR telescope system is one of only a few in the world to have accomplished this feat. In order to achieve these results, the RAPTOR telescopes must operate autonomously at a high duty-cycle and in peak operating condition. Currently the telescopes are maintained in an ad hoc manner, often in a run-to-failure mode. The RAPTOR project could benefit greatly from a structural health monitoring (SHM) system, especially as more complex units are added to the suite of telescopes. This paper will summarize preliminary results from an SHM study performed on one of the RAPTOR telescopes. Damage scenarios that are of concern and that have been previously observed are first summarized. Then a specific study of damage to the telescope drive mechanism is presented where the data acquisition system is first described. Next, damage detection algorithms are developed with LANL's new publically available software SHMTools and the results of this process are discussed in detail. The paper will conclude with a summary of future planned refinemenls of the RAPTOR SHM system.

  10. Paramyxovirus fusion: Real-time measurement of parainfluenza virus 5 virus-cell fusion

    SciTech Connect (OSTI)

    Connolly, Sarah A. [Howard Hughes Medical Institute, Northwestern University, Evanston, IL 60208-3500 (United States); Lamb, Robert A. [Howard Hughes Medical Institute, Northwestern University, Evanston, IL 60208-3500 (United States) and Department of Biochemistry, Molecular Biology, and Cell Biology, Northwestern University, Evanston, IL 60208-3500 (United States)]. E-mail: ralamb@northwestern.edu

    2006-11-25T23:59:59.000Z

    Although cell-cell fusion assays are useful surrogate methods for studying virus fusion, differences between cell-cell and virus-cell fusion exist. To examine paramyxovirus fusion in real time, we labeled viruses with fluorescent lipid probes and monitored virus-cell fusion by fluorimetry. Two parainfluenza virus 5 (PIV5) isolates (W3A and SER) and PIV5 containing mutations within the fusion protein (F) were studied. Fusion was specific and temperature-dependent. Compared to many low pH-dependent viruses, the kinetics of PIV5 fusion was slow, approaching completion within several minutes. As predicted from cell-cell fusion assays, virus containing an F protein with an extended cytoplasmic tail (rSV5 F551) had reduced fusion compared to wild-type virus (W3A). In contrast, virus-cell fusion for SER occurred at near wild-type levels, despite the fact that this isolate exhibits a severely reduced cell-cell fusion phenotype. These results support the notion that virus-cell and cell-cell fusion have significant differences.

  11. The U-tube sampling methodology and real-time analysis of geofluids

    SciTech Connect (OSTI)

    Freifeld, Barry; Perkins, Ernie; Underschultz, James; Boreham, Chris

    2009-03-01T23:59:59.000Z

    The U-tube geochemical sampling methodology, an extension of the porous cup technique proposed by Wood [1973], provides minimally contaminated aliquots of multiphase fluids from deep reservoirs and allows for accurate determination of dissolved gas composition. The initial deployment of the U-tube during the Frio Brine Pilot CO{sub 2} storage experiment, Liberty County, Texas, obtained representative samples of brine and supercritical CO{sub 2} from a depth of 1.5 km. A quadrupole mass spectrometer provided real-time analysis of dissolved gas composition. Since the initial demonstration, the U-tube has been deployed for (1) sampling of fluids down gradient of the proposed Yucca Mountain High-Level Waste Repository, Armagosa Valley, Nevada (2) acquiring fluid samples beneath permafrost in Nunuvut Territory, Canada, and (3) at a CO{sub 2} storage demonstration project within a depleted gas reservoir, Otway Basin, Victoria, Australia. The addition of in-line high-pressure pH and EC sensors allows for continuous monitoring of fluid during sample collection. Difficulties have arisen during U-tube sampling, such as blockage of sample lines from naturally occurring waxes or from freezing conditions; however, workarounds such as solvent flushing or heating have been used to address these problems. The U-tube methodology has proven to be robust, and with careful consideration of the constraints and limitations, can provide high quality geochemical samples.

  12. Real-time processing of remote sensor data as applied to Arctic ice classification

    E-Print Network [OSTI]

    Permenter, James Austin

    1973-01-01T23:59:59.000Z

    REAL-TIME PROCESSING OF REMOTE SENSOR DATA AS APPLIED TO ARCTIC ICE CLASSIFICATION A Thesis by JAMES AUSTIN PERMENTER partial ! Submitted to the Graduate College of Texas A)M University in fulfillment of the requirement for the degree... of MASTER OF SCIENCE December 1973 Major Subject: Electrical Engineering REAL-TIME PROCESSING OF REMOTE SENSOR DATA AS APPLIED TO ARCTIC ICE CLASSIFICATION A Thesis by James Austin Permenter Approved as to style and content by: ] ( rman of Commi...

  13. A multiprocessor system for real-time simulation of power electronic circuits

    E-Print Network [OSTI]

    Qawasmi, Nabil Hussein

    1988-01-01T23:59:59.000Z

    that describes it [7]. Its applications are widely distributed among many areas of technology such as process controls, aerospace, and other engineering oriented system design and analysis problems. Real-time simulation is a much favored simulation method...A MULTIPROCESSOR SYSTEM FOR REAL-TIME SIMULATION OF POWER ELECTRONIC CIRCUITS A Thesis by NABIL HUSSEIN QAWASMI Submitted to the Graduate College of Texas AkM University in partial fulfillment of the requirement for the degree of MASTER...

  14. Flow Control of Real Time Multimedia Applications Using Model Predictive Control with a Feed Forward Term

    E-Print Network [OSTI]

    Duong, Thien Chi

    2011-02-22T23:59:59.000Z

    . In this research, the flow accumulation is the signal used in feedback for flow control. It has the advantage of reflecting both packet losses and delays; therefore, it is a better choice. Using network simulations, the accumulations of real-time audio... based on ARX predictor and utilizes sending bit rate as input and accumulation as output signal. The control effort is to remain the accumulations of real-time multimedia flows at a certain reference. From network simulation results, he concluded...

  15. A high-resolution, four-band SAR testbed with real-time image formation

    SciTech Connect (OSTI)

    Walker, B.; Sander, G.; Thompson, M.; Burns, B.; Fellerhoff, R.; Dubbert, D.

    1996-03-01T23:59:59.000Z

    This paper describes the Twin-Otter SAR Testbed developed at Sandia National Laboratories. This SAR is a flexible, adaptable testbed capable of operation on four frequency bands: Ka, Ku, X, and VHF/UHF bands. The SAR features real-time image formation at fine resolution in spotlight and stripmap modes. High-quality images are formed in real time using the overlapped subaperture (OSA) image-formation and phase gradient autofocus (PGA) algorithms.

  16. A comparison of Lagrangian inertia coefficients for robot manipulator dynamics to examine real-time applicability

    E-Print Network [OSTI]

    Roston, Gerald Paul

    1985-01-01T23:59:59.000Z

    A COMPARISON OF LAGRANGIAN INERTIA COEFFICIENTS FOR ROBOT MANIPULATOR DYNAMICS TO EXAMINE REAL-TIME APPLICABILITY A Thesis by GERALD PAUL ROSTON Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 1985 Major Subject: Mechanical Engineering A COMPARISON OF LAGRANGIAN INERTIA COEFFICIENTS FOR ROBOT MANIPULATOR DYiNAMICS TO EXAMINE REAL-TIME APPLICABILITY A Thesis by GERALD PAUL ROSTON...

  17. Real time MR Coronary Angiography at 3T P. K. Nguyen1

    E-Print Network [OSTI]

    Southern California, University of

    Real time MR Coronary Angiography at 3T P. K. Nguyen1 , K. Nayak2,3 , C. Cunningham3 , J. M. Santos3 , M. Tsukiji1 , J. Brittain4 , M. V. McConnell1 , D. Nishimura3 , B. Hu3 , J. Pauly3 , P. Yang1 1 Park, CA, United States Introduction. Real time MR eliminates the need for cardiac-gating or breath

  18. Real-time metaphorical visualization of multi-dimensional environmental data

    E-Print Network [OSTI]

    Aley, Eric Brian

    2006-08-16T23:59:59.000Z

    REAL-TIME METAPHORICAL VISUALIZATION OF MULTI- DIMENSIONAL ENVIRONMENTAL DATA A Thesis by ERIC BRIAN ALEY Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May 2006 Major Subject: Visualization Sciences REAL-TIME METAPHORICAL VISUALIZATION OF MULTI- DIMENSIONAL ENVIRONMENTAL DATA A Thesis by ERIC BRIAN ALEY Submitted to the Office of Graduate Studies...

  19. Design and Implementation of Real-Time Off-Grid Detection Tool Based on FNET/GridEye

    SciTech Connect (OSTI)

    Guo, Jiahui [University of Tennessee, Knoxville (UTK); Zhang, Ye [University of Tennessee, Knoxville (UTK); Liu, Yilu [University of Tennessee (UTK) and Oak Ridge National Laboratory (ORNL); Young II, Marcus Aaron [ORNL; Irminger, Philip [ORNL; Dimitrovski, Aleksandar D [ORNL; Willging, Patrick [U.S. Department of Energy

    2014-01-01T23:59:59.000Z

    Real-time situational awareness tools are of critical importance to power system operators, especially during emergencies. The availability of electric power has become a linchpin of most post disaster response efforts as it is the primary dependency for public and private sector services, as well as individuals. Knowledge of the scope and extent of facilities impacted, as well as the duration of their dependence on backup power, enables emergency response officials to plan for contingencies and provide better overall response. Based on real-time data acquired by Frequency Disturbance Recorders (FDRs) deployed in the North American power grid, a real-time detection method is proposed. This method monitors critical electrical loads and detects the transition of these loads from an on-grid state, where the loads are fed by the power grid to an off-grid state, where the loads are fed by an Uninterrupted Power Supply (UPS) or a backup generation system. The details of the proposed detection algorithm are presented, and some case studies and off-grid detection scenarios are also provided to verify the effectiveness and robustness. Meanwhile, the algorithm has already been implemented based on the Grid Solutions Framework (GSF) and has effectively detected several off-grid situations.

  20. Earthquake early warning system using real-time signal processing

    SciTech Connect (OSTI)

    Leach, R.R. Jr.; Dowla, F.U.

    1996-02-01T23:59:59.000Z

    An earthquake warning system has been developed to provide a time series profile from which vital parameters such as the time until strong shaking begins, the intensity of the shaking, and the duration of the shaking, can be derived. Interaction of different types of ground motion and changes in the elastic properties of geological media throughout the propagation path result in a highly nonlinear function. We use neural networks to model these nonlinearities and develop learning techniques for the analysis of temporal precursors occurring in the emerging earthquake seismic signal. The warning system is designed to analyze the first-arrival from the three components of an earthquake signal and instantaneously provide a profile of impending ground motion, in as little as 0.3 sec after first ground motion is felt at the sensors. For each new data sample, at a rate of 25 samples per second, the complete profile of the earthquake is updated. The profile consists of a magnitude-related estimate as well as an estimate of the envelope of the complete earthquake signal. The envelope provides estimates of damage parameters, such as time until peak ground acceleration (PGA) and duration. The neural network based system is trained using seismogram data from more than 400 earthquakes recorded in southern California. The system has been implemented in hardware using silicon accelerometers and a standard microprocessor. The proposed warning units can be used for site-specific applications, distributed networks, or to enhance existing distributed networks. By producing accurate, and informative warnings, the system has the potential to significantly minimize the hazards of catastrophic ground motion. Detailed system design and performance issues, including error measurement in a simple warning scenario are discussed in detail.

  1. Design of a Host Traffic Management system for Hard Real Time networks

    E-Print Network [OSTI]

    Krishna Moorthy, Jayasankar

    1997-01-01T23:59:59.000Z

    A Hard Real Time (HRT) system is one whose correct functioning is based on the concepts of timely and correct delivery. By timely delivery, we imply that if a message is dispatched by a sender application it should be delivered at a receiver...

  2. Towards Real-Time High Performance Computing For Power Grid Analysis

    SciTech Connect (OSTI)

    Hui, Peter SY; Lee, Barry; Chikkagoudar, Satish

    2012-11-16T23:59:59.000Z

    Real-time computing has traditionally been considered largely in the context of single-processor and embedded systems, and indeed, the terms real-time computing, embedded systems, and control systems are often mentioned in closely related contexts. However, real-time computing in the context of multinode systems, specifically high-performance, cluster-computing systems, remains relatively unexplored. Imposing real-time constraints on a parallel (cluster) computing environment introduces a variety of challenges with respect to the formal verification of the system's timing properties. In this paper, we give a motivating example to demonstrate the need for such a system--- an application to estimate the electromechanical states of the power grid--- and we introduce a formal method for performing verification of certain temporal properties within a system of parallel processes. We describe our work towards a full real-time implementation of the target application--- namely, our progress towards extracting a key mathematical kernel from the application, the formal process by which we analyze the intricate timing behavior of the processes on the cluster, as well as timing measurements taken on our test cluster to demonstrate use of these concepts.

  3. Detecting internal corrosion of natural gas transmission pipelines: field tests of probes and systems for real-time corrosion measurement

    SciTech Connect (OSTI)

    Covino, Bernard S., Jr.; Bullard, Sophie J.; Cramer, Stephen D.; Holcomb, Gordon R.; Ziomek-Moroz, M.; Kane, R.D. (InterCorr International); Meidinger, B. (Rocky Mountain Oilfield Testing Center)

    2005-01-01T23:59:59.000Z

    A field study was conducted to evaluate the use of automated, multi-technique electrochemical corrosion-rate monitoring devices and probes for detecting corrosion in environments similar to those found in natural gas transmission pipelines. It involved measurement of real-time corrosion signals from operating pipelines. Results and interpretation were reported from four different field test locations. Standard flush-mount and custom flange probes were used in four different environments at a gas-gathering site and one environment but two different probe orientations at a natural gas site. These sites were selected to represent normal and upset conditions common in gas transmission pipelines. The environments consisted of two different levels of humidified natural gas, liquid hydrocarbon, and water from natural gas. Probe locations included the 6 and 12 o?clock positions of a natural gas pipeline carrying 2-phase gas/liquid flow. The probe data was monitored using completely remote solar powered systems that provided real-time data transmission via wireless back to a pipeline control station. Data are also presented comparing the ECR probe data to that for coupons used to determine corrosion rate and to detect the presence of microbiologically influenced corrosion (MIC).

  4. ProtEx: a toolkit for the analysis of distributed real-time systems

    E-Print Network [OSTI]

    Meylan, Yves Damien Meylan

    2000-01-01T23:59:59.000Z

    an outlook of the cunent and future work. PREVIOUS AND RELATED WORK A real-time application must meet precise timing requirements. Deadlines must be enforced in order to have a system consisting of schedulable tasks, A schedulability analyzer is typically... times of all the tasks defined in the system. After the calculation of the worst-case response time or delay, the computed value is compared with the task's timing requirements, i. e. deadline. This step is necessary in order to determine...

  5. A Real-time Visual Tracking System in the Robot Soccer Domain Bo Li, Edward Smith, Huosheng Hu, Libor Spacek

    E-Print Network [OSTI]

    Hu, Huosheng

    A Real-time Visual Tracking System in the Robot Soccer Domain Bo Li, Edward Smith, Huosheng Hu Abstract This paper presents a real-time visual tracking system in the robot soccer domain. The details of the Essex Wizards robot football team and its control system are described. A real-time visual tracking

  6. Digital Holography for in Situ Real-Time Measurement of Plasma-Facing-Component Erosion

    SciTech Connect (OSTI)

    ThomasJr., C. E. [Third Dimension Technologies, LLC, Knoxville, TN; Granstedt, E. M. [Tri-Alpha Energy] [Tri-Alpha Energy; Biewer, Theodore M [ORNL] [ORNL; Baylor, Larry R [ORNL] [ORNL; Combs, Stephen Kirk [ORNL] [ORNL; Meitner, Steven J [ORNL] [ORNL; Hillis, Donald Lee [ORNL] [ORNL; Majeski, R. [Princeton Plasma Physics Laboratory (PPPL)] [Princeton Plasma Physics Laboratory (PPPL); Kaita, R. [Princeton Plasma Physics Laboratory (PPPL)] [Princeton Plasma Physics Laboratory (PPPL)

    2014-01-01T23:59:59.000Z

    In situ, real time measurement of net plasma-facing-component (PFC) erosion/deposition in a real plasma device is challenging due to the need for good spatial and temporal resolution, sufficient sensitivity, and immunity to fringe-jump errors. Design of a high-sensitivity, potentially high-speed, dual-wavelength CO2 laser digital holography system (nominally immune to fringe jumps) for PFC erosion measurement is discussed.

  7. Real-time capable first principle based modelling of tokamak turbulent transport

    E-Print Network [OSTI]

    Breton, S; Felici, F; Imbeaux, F; Aniel, T; Artaud, J F; Baiocchi, B; Bourdelle, C; Camenen, Y; Garcia, J

    2015-01-01T23:59:59.000Z

    A real-time capable core turbulence tokamak transport model is developed. This model is constructed from the regularized nonlinear regression of quasilinear gyrokinetic transport code output. The regression is performed with a multilayer perceptron neural network. The transport code input for the neural network training set consists of five dimensions, and is limited to adiabatic electrons. The neural network model successfully reproduces transport fluxes predicted by the original quasilinear model, while gaining five orders of magnitude in computation time. The model is implemented in a real-time capable tokamak simulator, and simulates a 300s ITER discharge in 10s. This proof-of-principle for regression based transport models anticipates a significant widening of input space dimensionality and physics realism for future training sets. This aims to provide unprecedented computational speed coupled with first-principle based physics for real-time control and integrated modelling applications.

  8. Validation of the new real-time equilibrium code EQUINOX on JET and Tore Supra

    E-Print Network [OSTI]

    Faugeras, Blaise

    Validation of the new real-time equilibrium code EQUINOX on JET and Tore Supra D. Mazon1 , P. Lotte Nice Sophia-Antipolis, CNRS Parc Valrose 06108 Nice Cedex 02 France 3 Consorzio RFX ­ Associazione time equilibrium reconstruction code EQUINOX, which solves the Grad Shafranov equation, has been

  9. Real-time processing of a long perimeter fiber optic intrusion system

    E-Print Network [OSTI]

    Snider, William Timothy

    2009-09-30T23:59:59.000Z

    This thesis reports on recent advances made in real-time intruder detection for an intrusion system developed at Texas A&M University that utilizes a phase-sensitive optical time-domain reflectometer. The system uses light pulses from a highly...

  10. Effect of real-time electricity pricing on renewable generators and system emissions

    E-Print Network [OSTI]

    Connolly, Jeremiah P. (Jeremiah Peter)

    2008-01-01T23:59:59.000Z

    Real-time retail pricing (RTP) of electricity, in which the retail price is allowed to vary with very little time delay in response to changes in the marginal cost of generation, offers expected short-run and long-run ...

  11. Real-time State Estimation on Micro-grids Ying Hu, Anthony Kuh, Aleksandar Kavcic

    E-Print Network [OSTI]

    Kavcic, Aleksandar

    on the factor graph utilizing real-time measurements from the smart metering devices. The result are experiencing a transformation of the power grid. The future smart grid [4] will bring advanced metering-time measurements. As more smart metering devices are being deployed on the grid, power system analysis is p

  12. Integrating Preemption Threshold Scheduling and Dynamic Voltage Scaling for Energy Efficient Real-Time

    E-Print Network [OSTI]

    Gupta, Rajesh

    scheduling (PTS) enables designing scalable real-time systems. PTS not only decreases the run-time overhead by the Earliest Dead- line First (EDF) policy. We present an algorithm to compute threshold preemption levels- tion is an important aspect of embedded systems design. Generally speaking, the pro- cessor consumes

  13. Utility Accrual Real-Time Scheduling with Probabilistically Assured Timeliness Performance

    E-Print Network [OSTI]

    Ravindran, Binoy

    is a generalization of the classical dead- line constraint, specifies the utility of completing an ap- plicationUtility Accrual Real-Time Scheduling with Probabilistically Assured Timeliness Performance Peng Li Jensen The MITRE Corporation Bedford, MA 01730, USA jensen@mitre.org Abstract We present time/utility

  14. Performance Evaluation of Real-Time Scheduling Heuristics for Energy Harvesting Systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Performance Evaluation of Real-Time Scheduling Heuristics for Energy Harvesting Systems Maryline by extracting energy from their environment. This is known as energy harvesting. This paper investigates within enough time for a proper response to be made to a rapid increase in the temperature. Harvesting

  15. Real-Time Character Animation for Computer Games Eike F Anderson

    E-Print Network [OSTI]

    Davies, Christopher

    three-dimensional game characters which are real-time animated inside the virtual environment-time character animation. 2 RELATED WORK Both, memory and processing power, are expensive. More realism in games, by recursively traversing the hierarchic data structure starting from the root, passing down the transformation

  16. Real-time Scheduling of periodic tasks in a monoprocessor system with rechargeable energy storage

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Real-time Scheduling of periodic tasks in a monoprocessor system with rechargeable energy storage-time computing system that is powered through a renewable energy storage device. In this context, two constraints for the properties of the energy source, capacity of the energy storage as well as energy consumption of the tasks

  17. Real-Time Wind Turbine Emulator Suitable for Power Quality and Dynamic Control Studies

    E-Print Network [OSTI]

    Lehn, Peter W.

    1 Real-Time Wind Turbine Emulator Suitable for Power Quality and Dynamic Control Studies Dale S. L. Dolan, Student Member, IEEE, P. W. Lehn, Member IEEE Abstract-- Wind turbines are increasingly becoming-time Wind Turbine Emulator, which emulates the dynamic torque produced by an actual turbine has been

  18. EDF Option for Scheduling Real-Time Jobs in Energy Harvesting Systems

    E-Print Network [OSTI]

    Boyer, Edmond

    EDF Option for Scheduling Real-Time Jobs in Energy Harvesting Systems Maryline CHETTO IRCCy of devising algorithms for scheduling time critical jobs on a single processor computing system with no energy approach for scheduling independent jobs preemptively when there is no energy limitation and no processing

  19. Real-Time Frame-Dependent Watermarking in MPEG-2 Video

    E-Print Network [OSTI]

    Chen, Sheng-Wei

    Real-Time Frame-Dependent Watermarking in MPEG-2 Video Chun-Shien Lu ?, Jan-Ru Chen y, and Kuo data. In particular, video watermarking deals with several issues that are unique to various types-time detection, bit-rate control, and resistance to watermark estimation attacks, will be addressed. Since video

  20. FLUORESCENCE AND FIBER-OPTICS BASED REAL-TIME THICKNESS SENSOR FOR DYNAMIC LIQUID FILMS

    E-Print Network [OSTI]

    Narain, Amitabh

    /analyzed the incident reflected waves to identify and measure the total transit time of the sound wave (of known wave-speed1 FLUORESCENCE AND FIBER-OPTICS BASED REAL-TIME THICKNESS SENSOR FOR DYNAMIC LIQUID FILMS T. W. Ng/disadvantages of many known liquid film thickness sensing devices (viz. conductivity probes, reflectance based fiber

  1. System-Wide Energy Minimization for Real-Time Tasks: Lower Bound and Approximation

    E-Print Network [OSTI]

    Xu, Cheng-Zhong

    - time solutions by exploiting its inherent properties. 1. INTRODUCTION Power management is importantSystem-Wide Energy Minimization for Real-Time Tasks: Lower Bound and Approximation Xiliang Zhong and Cheng-Zhong Xu Department of Electrical and Computer Engineering Wayne State University, Detroit

  2. A Component-Based Approach for Constructing High-confidence Distributed Real-time and

    E-Print Network [OSTI]

    Tuceryan, Mihran

    the entire software life-cycle. 1 Introduction As the complexity of Distributed Real-Time Embedded (DRE development cost, but also facilitate high-confidence DRE system construction using different formalisms over implementations of the same functional component with different run-time features (e.g., battery consumption

  3. A Component-Based Approach for Constructing High-Confidence Distributed Real-Time and

    E-Print Network [OSTI]

    Gray, Jeffrey G.

    the entire software life-cycle. 1 Introduction As the complexity of Distributed Real-Time Embedded (DRE development cost, but also facilitate high-confidence DRE system construction using different formalisms over with different run-time features (e.g., battery consumption versus throughput). Addition- ally, two components

  4. Real-time MSE measurements for current profile control on KSTAR

    SciTech Connect (OSTI)

    De Bock, M. F. M.; Aussems, D.; Huijgen, R.; Scheffer, M. [Eindhoven University of Technology, Eindhoven (Netherlands); Chung, J. [National Fusion Research Institute, Daejeon (Korea, Republic of)

    2012-10-15T23:59:59.000Z

    To step up from current day fusion experiments to power producing fusion reactors, it is necessary to control long pulse, burning plasmas. Stability and confinement properties of tokamak fusion reactors are determined by the current or q profile. In order to control the q profile, it is necessary to measure it in real-time. A real-time motional Stark effect diagnostic is being developed at Korean Superconducting Tokamak for Advanced Research for this purpose. This paper focuses on 3 topics important for real-time measurements: minimize the use of ad hoc parameters, minimize external influences and a robust and fast analysis algorithm. Specifically, we have looked into extracting the retardance of the photo-elastic modulators from the signal itself, minimizing the influence of overlapping beam spectra by optimizing the optical filter design and a multi-channel, multiharmonic phase locking algorithm.

  5. Improved process control through real-time measurement of mineral content

    SciTech Connect (OSTI)

    Turler, Daniel; Karaca, Murat; Davis, William B.; Giauque, Robert D.; Hopkins, Deborah

    2001-11-02T23:59:59.000Z

    In a highly collaborative research and development project with mining and university partners, sensors and data-analysis tools are being developed for rock-mass characterization and real-time measurement of mineral content. Determining mineralogy prior to mucking in an open-pit mine is important for routing the material to the appropriate processing stream. A possible alternative to lab assay of dust and cuttings obtained from drill holes is continuous on-line sampling and real-time x-ray fluorescence (XRF) spectroscopy. Results presented demonstrate that statistical analyses combined with XRF data can be employed to identify minerals and, possibly, different rock types. The objective is to create a detailed three-dimensional mineralogical map in real time that would improve downstream process efficiency.

  6. Excitons in the One-Dimensional Hubbard Model: A Real-Time Study K. A. Al-Hassanieh,1

    E-Print Network [OSTI]

    Tennessee, University of

    ) We study the real-time dynamics of a hole and doubly occupied site pair, namely, a holon in a bound state. Our study also provides insight on the holon-doublon propagation in real space. Because

  7. PONDER - A Real time software backend for pulsar and IPS observations at the Ooty Radio Telescope

    E-Print Network [OSTI]

    Naidu, Arun; Manoharan, P K; Krishnakumar, M A

    2015-01-01T23:59:59.000Z

    This paper describes a new real-time versatile backend, the Pulsar Ooty Radio Telescope New Digital Efficient Receiver (PONDER), which has been designed to operate along with the legacy analog system of the Ooty Radio Telescope (ORT). PONDER makes use of the current state of the art computing hardware, a Graphical Processing Unit (GPU) and sufficiently large disk storage to support high time resolution real-time data of pulsar observations, obtained by coherent dedispersion over a bandpass of 16 MHz. Four different modes for pulsar observations are implemented in PONDER to provide standard reduced data products, such as time-stamped integrated profiles and dedispersed time series, allowing faster avenues to scientific results for a variety of pulsar studies. Additionally, PONDER also supports general modes of interplanetary scintillation (IPS) measurements and very long baseline interferometry data recording. The IPS mode yields a single polarisation correlated time series of solar wind scintillation over a b...

  8. Real Time Pricing as a Default or Optional Service for C&I Customers: A Comparative Analysis of Eight Case Studies

    E-Print Network [OSTI]

    Barbose, Galen; Goldman, Charles; Bharvirkar, Ranjit; Hopper, Nicole; Ting, Michael; Neenan, Bernie

    2005-01-01T23:59:59.000Z

    Load Response Program Real Time Option is a unique examplePJM Economic LRP Real Time Option, PJM Emergency LRPPJM Economic LRP Real Time Option PowerShare QuoteOption

  9. Real-time, single-step bioassay using nanoplasmonic resonator with ultra-high sensitivity

    DOE Patents [OSTI]

    Zhang, Xiang; Ellman, Jonathan A; Chen, Fanqing Frank; Su, Kai-Hang; Wei, Qi-Huo; Sun, Cheng

    2014-04-01T23:59:59.000Z

    A nanoplasmonic resonator (NPR) comprising a metallic nanodisk with alternating shielding layer(s), having a tagged biomolecule conjugated or tethered to the surface of the nanoplasmonic resonator for highly sensitive measurement of enzymatic activity. NPRs enhance Raman signals in a highly reproducible manner, enabling fast detection of protease and enzyme activity, such as Prostate Specific Antigen (paPSA), in real-time, at picomolar sensitivity levels. Experiments on extracellular fluid (ECF) from paPSA-positive cells demonstrate specific detection in a complex bio-fluid background in real-time single-step detection in very small sample volumes.

  10. A TMS320C30 based real time data acquisition system

    E-Print Network [OSTI]

    Shahrier, Sharif Mohammad

    1992-01-01T23:59:59.000Z

    A TMS320C30 BASED REAL TIME DATA ACQIJISITION SYSTEM A Thesis by SHARIF MOHAMMAD SHAHRIER Submitted to the Office of Graduate Studies of Texa, s A & M Hniversity in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... August 1992 Major Subject: Electrical Engineering A TMS320C30 BASED REAL TIME DATA ACQUISITION SYSTEM A Thesis by SHARIF MOHAMMAD SHAHRIER Approved as to style and content by: B. Don Russell (Chair of Co ittee) 1 Bar G. ouglass ember) z-r . es...

  11. HP Steam Trap Monitoring

    E-Print Network [OSTI]

    Pascone, S.

    2011-01-01T23:59:59.000Z

    STEAM MONITORING HP Steam Trap Monitoring HP Steam Trap Monitoring ? 12-18 months payback! ? 3-5% permanent reduction in consumption ? LEED Pt.? Innovation in Operations EB O&M ? Saved clients over $1,000,000 Annual consumption... Steam Trap Monitoring ? Real-time monitoring for high-pressure critical traps (>15 PSIG) ? Average total system cost $25K - $50K ? Web-Based or Modbus/BMS Integration Basic Installation Wireless Signal Transmitter Receiver Repeater...

  12. Advanced Kalman Filter for Real-Time Responsiveness in Complex Systems

    SciTech Connect (OSTI)

    Welch, Gregory Francis [UNC-Chapel Hill/University of Central Florida] [UNC-Chapel Hill/University of Central Florida; Zhang, Jinghe [UNC-Chapel Hill/Virginia Tech] [UNC-Chapel Hill/Virginia Tech

    2014-06-10T23:59:59.000Z

    Complex engineering systems pose fundamental challenges in real-time operations and control because they are highly dynamic systems consisting of a large number of elements with severe nonlinearities and discontinuities. Todays tools for real-time complex system operations are mostly based on steady state models, unable to capture the dynamic nature and too slow to prevent system failures. We developed advanced Kalman filtering techniques and the formulation of dynamic state estimation using Kalman filtering techniques to capture complex system dynamics in aiding real-time operations and control. In this work, we looked at complex system issues including severe nonlinearity of system equations, discontinuities caused by system controls and network switches, sparse measurements in space and time, and real-time requirements of power grid operations. We sought to bridge the disciplinary boundaries between Computer Science and Power Systems Engineering, by introducing methods that leverage both existing and new techniques. While our methods were developed in the context of electrical power systems, they should generalize to other large-scale scientific and engineering applications.

  13. Wetland Flow and Salinity Budgets and Elements of a Decision Support System toward Implementation of Real-Time Seasonal Wetland Salinity Management

    E-Print Network [OSTI]

    Quinn, N.W.T.

    2013-01-01T23:59:59.000Z

    real-?time water quality management. Environmental real-?time water quality management. Environmental Management of Water Quality in the San Joaquin River. California Environmental

  14. ENVIRONMENTAL MONITORING OF LEAKS USING TIME LAPSED LONG ELECTRODE ELECTRICAL RESISTIVITY

    SciTech Connect (OSTI)

    MYERS DA; RUCKER DF; FINK JB; LOKE MH

    2009-12-16T23:59:59.000Z

    Highly industrialized areas pose challenges for surface electrical resistivity characterization due to metallic infrastructure. The infrastructure is typically more conductive than the desired targets and will mask the deeper subsurface information. These challenges may be minimized if steel-cased wells are used as long electrodes in the area near the target. We demonstrate a method of using long electrodes to electrically monitor a simulated leak from an underground storage tank with both synthetic examples and a field demonstration. The synthetic examples place a simple target of varying electrical properties beneath a very low resistivity layer. The layer is meant to replicate the effects of infrastructure. Both surface and long electrodes are tested on the synthetic domain. The leak demonstration for the field experiment is simulated by injecting a high conductivity fluid in a perforated well within the S tank farm at Hanford, and the resistivity measurements are made before and after the leak test. All data are processed in four dimensions, where a regularization procedure is applied in both the time and space domains. The synthetic test case shows that the long electrode ERM could detect relative changes in resistivity that are commensurate with the differing target properties. The surface electrodes, on the other hand, had a more difficult time matching the original target's footprint. The field results shows a lowered resistivity feature develop south of the injection site after cessation of the injections. The time lapsed regularization parameter has a strong influence on the differences in inverted resistivity between the pre and post injection datasets, but the interpretation of the target is consistent across all values of the parameter. The long electrode ERM method may provide a tool for near real-time monitoring of leaking underground storage tanks.

  15. Real-Time Gene Expression Profiling of Live Shewanella Oneidensis Cells

    SciTech Connect (OSTI)

    Xiaoliang Sunney Xie

    2009-03-30T23:59:59.000Z

    The overall objective of this proposal is to make real-time observations of gene expression in live Shewanella oneidensis cells with high sensitivity and high throughput. Gene expression, a central process to all life, is stochastic because most genes often exist in one or two copies per cell. Although the central dogma of molecular biology has been proven beyond doubt, due to insufficient sensitivity, stochastic protein production has not been visualized in real time in an individual cell at the single-molecule level. We report the first direct observation of single protein molecules as they are generated, one at a time in a single live E. coli cell, yielding quantitative information about gene expression [Science 2006; 311: 1600-1603]. We demonstrated a general strategy for live-cell single-molecule measurements: detection by localization. It is difficult to detect single fluorescence protein molecules inside cytoplasm - their fluorescence is spread by fast diffusion to the entire cell and overwhelmed by the strong autofluorescence. We achieved single-molecule sensitivity by immobilizing the fluorescence protein on the cell membrane, where the diffusion is much slowed. We learned that under the repressed condition protein molecules are produced in bursts, with each burst originating from a stochastically-transcribed single messenger RNA molecule, and that protein copy numbers in the bursts follow a geometric distribution. We also simultaneously published a paper reporting a different method using ?-glactosidase as a reporter [Nature 440, 358 (2006)]. Many important proteins are expressed at low levels, inaccessible by previous proteomic techniques. Both papers allowed quantification of protein expression with unprecedented sensitivity and received overwhelming acclaim from the scientific community. The Nature paper has been identified as one of the most-cited papers in the past year [http://esi-topics.com/]. We have also an analytical framework describing the steady-state distribution of protein concentration in live cells, considering that protein production occurs in random bursts with an exponentially distributed number of molecules. This model allows for the extraction of kinetic parameters of gene expression from steady-state distributions of protein concentration in a cell population, which are available from single cell data obtained by fluorescence microscopy. [Phys. Rev. Lett. 97, 168302 (2006)]. A major objective in the Genome to Life (GtL) program is to monitor and understand the gene expression profile of a complete bacterial genome. We developed genetic and imaging methods for sensitive protein expression profiling in individual S. oneidensis cell. We have made good progress in constructing YFP-library with several hundred chromosomal fusion proteins and studied protein expression profiling in living Shewanella oneidensis cells. Fluorescence microscopy revealed the average abundance of specific proteins, as well as their noise in gene expression level across a population. We also explored ways to adapt our fluorescence measurement for other growth conditions, such as anaerobic growth.

  16. Nonlinear control for systems with bounded inputs: Real-time embedded control applied to UAVs

    E-Print Network [OSTI]

    Sontag, Eduardo

    Nonlinear control for systems with bounded inputs: Real-time embedded control applied to UAVs Farid) UAVs including conventional helicopters, four- rotors aircraft (Draganflyer) and several designs for small aerial vehicles, some restrictions and conditions specific to small UAVs have to be considered

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

    E-Print Network [OSTI]

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

  18. A real-time hydrological model for flood prediction using GIS and the WWW

    E-Print Network [OSTI]

    Blackburn, Alan

    water distribution. The development of such a system would be particularly important outside of urban and spatial real-time, emergency decision support. Rather than discuss develop- ments in the modelling Computers, Environment and Urban Systems 27 (2003) 9­32 www.elsevier.com/locate/compenvurbsys 0198

  19. The Potential of Energy Management and Control Systems for Real-Time Electricity Pricing Programs

    E-Print Network [OSTI]

    Akbari, H.; Heinemeier, K. E.

    1990-01-01T23:59:59.000Z

    provides an opportunity for the utility to implement this network by linking directly with equipment already in place: customer-owned energy management and control systems (EMCS). This paper assesses the potential use of EMCSs in utility real-time pricing...

  20. Accurate Modeling and Prediction of Energy Availability in Energy Harvesting Real-Time Embedded Systems

    E-Print Network [OSTI]

    Qiu, Qinru

    Binghamton University, State University of New York Binghamton, New York, USA {jlu5, sliu5, qwu, qqiuAccurate Modeling and Prediction of Energy Availability in Energy Harvesting Real-Time Embedded}@binghamton.edu Abstract -- Energy availability is the primary subject that drives the research innovations in energy

  1. DEZENT: A Safety-Critical Real-Time Approach Decentralized Electric Power Management

    E-Print Network [OSTI]

    Wedde, Horst F.

    for establishing technologies based on solar or wind power, or on renewable energy sources, is an adequate project we started from a power grid structure as to be frequently found e.g. in cen- tral Europe (see figDEZENT: A Safety-Critical Real-Time Approach for Decentralized Electric Power Management H. F

  2. Energy Aware Non-preemptive Scheduling for Hard Real-Time Ravindra Jejurikar Rajesh K. Gupta

    E-Print Network [OSTI]

    Gupta, Rajesh

    . . . . . . 11 4 Energy comparison of the static slowdown algorithms as a function of the task gain factor GfEnergy Aware Non-preemptive Scheduling for Hard Real-Time Systems Ravindra Jejurikar Rajesh K the ability to perform an energy-delay tradeoff in the computation and communications subsystems. Slowdown

  3. MSIP: A protocol for efficient handoffs of real-time multimedia sessions in mobile wireless scenarios

    E-Print Network [OSTI]

    Iyer, Sridhar

    infrastructure is to efficiently manage user mobility. Mobility is handled by Mobile IP (at the network layer in this paper, MSIP, is a combination of network and application layer mobility management models reducesMSIP: A protocol for efficient handoffs of real-time multimedia sessions in mobile wireless

  4. A Library of SIMULINK Blocks for Real-Time Control of HEV Traction John Chiasson1

    E-Print Network [OSTI]

    Tolbert, Leon M.

    algorithms for the various types of motor drives considered for hybrid electric vehicles (HEVs algorithms for the various types of motor drives considered for hybrid electric vehicles (HEVs02FCC-30 A Library of SIMULINK Blocks for Real-Time Control of HEV Traction Drives John Chiasson1

  5. Minimal Activity Mixed-Signal VLSI Architecture for Real-Time Linear Transforms in Video

    E-Print Network [OSTI]

    Genov, Roman

    -signal processor performs digital vector- matrix multiplication using internally analog fine-grain parallel multiplication, and zero- latency analog accumulation. Matrix coefficients are stored in a bit-parallel form. INTRODUCTION Real-time computing of linear transforms on a battery- powered mobile platform imposes great

  6. A Simulation Tool for Real-time Systems using Environmental Energy Harvesting Maryline CHETTO

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , the system operates in a so-called energy neutral mode by consuming only as much energy as harvested. The simulator enables to construct an optimal schedule for any task set, battery capacity and energy sourceA Simulation Tool for Real-time Systems using Environmental Energy Harvesting Maryline CHETTO

  7. On the feasibility and utility of exploiting real time database search to improve adaptive peak selection

    E-Print Network [OSTI]

    Noble, William Stafford

    On the feasibility and utility of exploiting real time database search to improve adaptive peak and utility of incorporating analysis of previous fragmentation scans into the peak selection protocol. We, the most common peak selection strategy is based upon the notion of an exclusion list, which

  8. U-Boot Standalone Application (Exports) API 18349 Embedded Real-Time Systems

    E-Print Network [OSTI]

    Narasimhan, Priya

    U-Boot Standalone Application (Exports) API 18­349 Embedded Real-Time Systems 1 Introduction This document contains details on the U-Boot 1.1.4 Exports API used by standalone applications. Most of the details of this document were derived from reading the U-Boot source code relevant to the gum- stix

  9. d Technical Note RING ARRAY TRANSDUCERS FOR REAL-TIME 3-D IMAGING OF AN ATRIAL

    E-Print Network [OSTI]

    Smith, Stephen

    with a matching layer. Real-time 3-D rendered images of an en face view of a Gore Helex septal occluder in a water-Yakub and Oralkan 2011). Atrial septal defects (ASD) comprise up to 7% of total congenital heart lesions and as much as 25% of congenital heart disease in adults (Kaplan 1993). ASDs may go undetected for decades

  10. ccsd-00001825,version2-19Oct2004 Development of Real Time Diagnostics and

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of several plasma parameters. Both diagnostics and algorithms were successfully used in several experiments of Tokamak plasmas, the responsibility of the identification falls mainly on plasma diagnostics. In the ccsd-00001825,version2-19Oct2004 Development of Real Time Diagnostics and Feedback Algorithms

  11. Field Test to Demonstrate Real-Time In-Situ Detection of Volatile Organic Compounds

    E-Print Network [OSTI]

    Ho, Cliff

    1 Field Test to Demonstrate Real-Time In-Situ Detection of Volatile Organic Compounds Hazmat Spill Center, Nevada Test Site September 19-25, 2001 Clifford K. Ho Sandia National Laboratories Albuquerque-filled 55- gallon drum at the Hazmat Spill Center at the Nevada Test Site. Background and Objectives Tens

  12. A practical post-processing technique for real-time block-based coding system

    E-Print Network [OSTI]

    Chan, Chris Y. H.

    1 A practical post-processing technique for real-time block-based coding system Yuk-Hee Chan, Sung to restore the images encoded with block-based compression standards such as JPEG. This method classi es with the reported post-processing methods. Keywords| I. Introduction THE Joint Photographic Experts Group JPEG im

  13. Figure 1: ATA 42 antenna array at Hat Creek ********ADAPTIVE REAL TIME IMAGING FOR RADIO ASTRONOMY*******

    E-Print Network [OSTI]

    Militzer, Burkhard

    Figure 1: ATA 42 antenna array at Hat Creek ********ADAPTIVE REAL TIME IMAGING FOR RADIO ASTRONOMY --------------------------­ · Astronomers primarily interested in astronomy. ­ Data reduction preoccupies radio astronomy specialists,f,p Bandpass( )f PolCal( )f,p Gains( )s,f,p S Beam Imager Astronomy Solver I2 ( ) )^(^, 2sVpfV - å ¹kj X Solver

  14. Complete Automation of Future Grid for Optimal Real-Time Distribution of Renewables

    E-Print Network [OSTI]

    Loudon, Catherine

    Complete Automation of Future Grid for Optimal Real-Time Distribution of Renewables Kiyoshi integrates tie-set graph theory with an intelligent agent system, is presented to distribute renewable energy and renewable generation is highly variable and unpredictable. Simulation results on a one hundred-node network

  15. Security-Aware Resource Allocation for Real-Time Parallel Jobs on Homogeneous

    E-Print Network [OSTI]

    Qin, Xiao

    processing systems [2], med- ical electronics [9], aircraft control [1], and scientific parallel computing [6 a system framework, security overhead, and parallel applications with deadline and security constraintsSecurity-Aware Resource Allocation for Real-Time Parallel Jobs on Homogeneous and Heterogeneous

  16. Local Flaps: A Real-Time Finite Element Based Solution to the Plastic Surgery

    E-Print Network [OSTI]

    Liblit, Ben

    Local Flaps: A Real-Time Finite Element Based Solution to the Plastic Surgery Defect Puzzle fundamental challenges in plastic surgery is the alter- ation of the geometry and topology of the skin for the patient after the procedure is completed. The plastic surgeon must look at the defect created

  17. The BEST Desktop Soft Real-Time Scheduler Scott A. Banachowski and Scott A. Brandt

    E-Print Network [OSTI]

    Miller, Ethan L.

    The BEST Desktop Soft Real-Time Scheduler Scott A. Banachowski and Scott A. Brandt University of California, Santa Cruz E-mail: sbanacho,sbrandt¡ @cse.ucsc.edu Abstract Best-effort CPU scheduling- effort scheduler that handles CPU-intensive, I/O-intensive, and periodic SRT processes using a single

  18. The BEST Desktop Soft Real-Time Scheduler Scott A. Banachowski and Scott A. Brandt

    E-Print Network [OSTI]

    Brandt, Scott A.

    results, i.e. priority boosts should be based on rate or deadline requirements. ¯ Increasing the loadThe BEST Desktop Soft Real-Time Scheduler Scott A. Banachowski and Scott A. Brandt University-effort scheduler that handles CPU-intensive, I/O-intensive, and periodic SRT processes using a single scheduling

  19. REAL-TIME DUAL-MICROPHONE SPEECH ENHANCEMENT USING FIELD PROGRAMMABLE GATE ARRAYS

    E-Print Network [OSTI]

    Sheikholeslami, Ali

    REAL-TIME DUAL-MICROPHONE SPEECH ENHANCEMENT USING FIELD PROGRAMMABLE GATE ARRAYS David Halupka@eecg}.toronto.edu ABSTRACT This paper discusses an implementation of a dual- microphone phase-based speech enhancement or irrelevant conversations, are present has fueled research interest in the areas of speech enhancement

  20. Multi-touchless: Real-Time Fingertip Detection and Tracking Using Geodesic Maxima

    E-Print Network [OSTI]

    Bowden, Richard

    Multi-touchless: Real-Time Fingertip Detection and Tracking Using Geodesic Maxima Philip Krejov the geodesic maxima of the surface. Fingertips are then selected from these maxima using a simplified model that uses geodesic maxima instead of visual appearance which is both efficient to compute and robust to both

  1. Compositionality in Real-Time Model Checking Jasper Berendsen and Frits Vaandrager

    E-Print Network [OSTI]

    Vaandrager, Frits

    Compositionality in Real-Time Model Checking Jasper Berendsen and Frits Vaandrager Radboud Universiteit Nijmegen Laquso Lunch Colloquium, 8 november 2007 Jasper Berendsen and Vaandrager Compositionality Modules, etc, CCS, I/O automata, ACP, mCRL2, etc Lamport: "In reality there are only states" Jasper

  2. THE "AIR WORM": AN INTERFACE FOR REAL-TIME MANIPULATION OF EXPRESSIVE MUSIC PERFORMANCE

    E-Print Network [OSTI]

    Widmer, Gerhard

    THE "AIR WORM": AN INTERFACE FOR REAL-TIME MANIPULATION OF EXPRESSIVE MUSIC PERFORMANCE Simon Dixon of Computational Perception Johannes Kepler University, Linz, Austria ABSTRACT Expressive performance file. Several modes of operation are possible: the "Air Worm" builds on previous work in performance vi

  3. Real-time feedback-controlled robotic fish for behavioral experiments with fish schools

    E-Print Network [OSTI]

    Leonard, Naomi

    1 Real-time feedback-controlled robotic fish for behavioral experiments with fish schools Daniel T- gations of collective animal behavior. In the case of fish schooling, new insights into processes such as collective decision making and leadership have been made in recent experiments in which live fish were

  4. A Real-Time Navigation Architecture for Automated Vehicles in Urban Environments

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Real-Time Navigation Architecture for Automated Vehicles in Urban Environments Gang Chen presents a novel navigation architec- ture for automated car-like vehicles in urban environments. Motion with fully automated driving capabilities. A fleet of such vehicles would form a managed transportation

  5. A Database Architecture For Real-Time Motion Retrieval Charly Awad, Nicolas Courty and Sylvie Gibet

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    A Database Architecture For Real-Time Motion Retrieval Charly Awad, Nicolas Courty and Sylvie Gibet, leading to an ex- ponential growth of the size of motion databases. Conse- quently indexing, querying, and retrieving motion capture data have become important considerations in the usability of such databases. Our

  6. Energy Aware Dynamic Voltage and Frequency Selection for Real-Time Systems with Energy Harvesting

    E-Print Network [OSTI]

    Qiu, Qinru

    Energy Aware Dynamic Voltage and Frequency Selection for Real-Time Systems with Energy Harvesting}@binghamton.edu Abstract In this paper, an energy aware dynamic voltage and frequency selection (EA-DVFS) algorithm energy and the harvested energy in a future duration. Specifically, if the system has sufficient energy

  7. Scheduling with Quality of Service requirements in Real-Time Energy Harvesting sensors

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Scheduling with Quality of Service requirements in Real-Time Energy Harvesting sensors Maissa by energy harvesters. We address this issue by proposing two energy-aware scheduling algorithmsS) measured in terms of deadline success ratio. Index Terms--embedded systems; energy harvesting schedu- ling

  8. Development of an actuated traffic control process utilizing real-time estimated volume feedbback

    E-Print Network [OSTI]

    Pacelli, Michael Joseph

    1999-01-01T23:59:59.000Z

    state of the system in the same units. The goal of this research was to develop an actuated traffic control process that could use estimated volumes in order to optimally operate the traffic signal in real- time in response to actual traffic demands...

  9. Real-time MRI-Guided Needle Placement Robot with Integrated Fiber Optic Force Sensing

    E-Print Network [OSTI]

    Camesano, Terri

    the robot mechanism, controller design, optical modeling and opto-mechanical design of the force sensor. MRI Control Box Needle Driver Module Cartesian Stage Module Piezoelectric Actuators Robot Fig. 1. (LeftReal-time MRI-Guided Needle Placement Robot with Integrated Fiber Optic Force Sensing Hao Su

  10. CONTROL OF A CLIMBING ROBOT USING REAL-TIME CONVEX OPTIMIZATION

    E-Print Network [OSTI]

    Ma, Yi

    is closed around desired robot chassis position to generate cartesian feedback forces. A convex optimization primarily on the planning problem. This paper focuses on the design of a control system. The target robotCONTROL OF A CLIMBING ROBOT USING REAL-TIME CONVEX OPTIMIZATION Teresa G. Miller Timothy W. Bretl

  11. Real-Time Load Elasticity Tracking and Pricing for Electric Vehicle Charging

    E-Print Network [OSTI]

    Giannakis, Georgios

    owners may also benefit from lower energy cost in the face of spiking gasoline prices. Although1 Real-Time Load Elasticity Tracking and Pricing for Electric Vehicle Charging Nasim Yahya Soltani price intelligently for individual customers to elicit desirable load curves. In this context

  12. Preliminary study of detecting neoplastic growths in vivo with real time calibrated

    E-Print Network [OSTI]

    Qu, Jianan

    Preliminary study of detecting neoplastic growths in vivo with real time calibrated University of Science and Technology, Clear Water Bay, N.T., Hong Kong SAR, P. R. China eequ@ust.hk Tak of Hong Kong, Prince of Wales Hospital, Shatin, N.T., Hong Kong SAR, P. R. China Abstract: The goal

  13. Flow visualization of molten alloys using real-time neutron radiography

    E-Print Network [OSTI]

    Bennett, Tami Norene

    1994-01-01T23:59:59.000Z

    The objective of this research is to visualize the flow of molten alloys using real-time neutron radiography. Initial experiments were performed using solder (50% tin, 50% lead), with nickel tracer particles, heated in a furnace to its liquid state...

  14. A Mixed Model for Real-Time, Interactive Simulation of a Cable Passing Through Several Pulleys

    SciTech Connect (OSTI)

    Garcia-Fernandez, Ignacio; Pla-Castells, Marta; Martinez-Dura, Rafael J. [Instituto de Robotica. Universidad de Valencia (Spain)

    2007-09-06T23:59:59.000Z

    A model of a cable and pulleys is presented that can be used in Real Time Computer Graphics applications. The model is formulated by the coupling of a damped spring and a variable coefficient wave equation, and can be integrated in more complex mechanical models of lift systems, such as cranes, elevators, etc. with a high degree of interactivity.

  15. Adaptive Connection Admission Control for Mission Critical Real-Time Communication Networks

    E-Print Network [OSTI]

    Bettati, Riccardo

    admission control in real-time communication networks. Much of the existing work on connection admission in resource availability. We take an innovative approach: First, we allow an application to specify QoS over include supervisory command and control of defense systems, manufacturing plants, etc. The success

  16. Adaptive Connection Admission Control for Mission Critical Real-Time Communication Networks

    E-Print Network [OSTI]

    Sahoo, Anirudha

    in real-time communication networks. Much of the existing work on connection admission control (CAC availability. We take an innovative approach: First, we allow an application to specify QoS in a range, rather include supervisory command and control of defense systems, manufacturing plants, etc. The success

  17. Analysis of Competitive Electricity Markets under a New Model of Real-Time Retail Pricing with

    E-Print Network [OSTI]

    Bhatia, Sangeeta

    Analysis of Competitive Electricity Markets under a New Model of Real-Time Retail Pricing with Ex for Information and Decision Systems, Massachusetts Institute of Technology, Cambridge, MA, USA {mardavij, mdrine loop system. Under this pricing mechanism, electricity is priced at the exant´e price (calculated based

  18. A Brain-to-Brain Interface for Real-Time Sharing of Sensorimotor Information

    E-Print Network [OSTI]

    Indiana University

    A Brain-to-Brain Interface for Real-Time Sharing of Sensorimotor Information Miguel Pais-Vieira1 Safra International Institute for Neuroscience of Natal (ELS-IINN), RN 59066-060, Natal, Brazil. A brain-to-brain the brains of two rats. In this BTBI, an ``encoder'' rat performed sensorimotor tasks that required

  19. DECENTRALIZED REAL-TIME MANAGEMENT LARGELY UNPREDICTABLE POWER NEEDS AND SUPPLY

    E-Print Network [OSTI]

    Wedde, Horst F.

    of unpredictable power need and supply situations. We model a representative scenario to explain variousDECENTRALIZED REAL-TIME MANAGEMENT OF LARGELY UNPREDICTABLE POWER NEEDS AND SUPPLY H. F. Wedde*, F technologies based on solar or wind power, or on renewable energy sources, is an adequate management

  20. Framework of Real-Time Optical Nyquist-WDM Receiver using Matlab & Simulink

    E-Print Network [OSTI]

    Crifasi, Adam Vincenzo

    2013-08-31T23:59:59.000Z

    ________________________________ Dr. Erik Perrins Date Defended: June 3, 2013 2 The Thesis Committee for Adam Crifasi certifies that this is the approved version of the following thesis: Framework of Real-Time Optical Nyquist-WDM Receiver using Matlab... & Simulink ________________________________ Chairperson Dr. Rongqing Hui Date approved: June 3, 2013 3 I investigate an optical Nyquist-WDM Bit Error Rate (BER) detection system. A transmitter...

  1. Real-time Rendering of Complex Vector Data on 3d Terrain Models

    E-Print Network [OSTI]

    Behnke, Sven

    Real-time Rendering of Complex Vector Data on 3d Terrain Models M. Schneider, M. Guthe, and R of buildings, streets and runway (from left to right). Abstract. In this paper we present a hybrid technique model. The first part of this hybrid technique is a texture-based approach that is especially suited

  2. Real-Time BRDF Editing in Complex Lighting Aner Ben-Artzi

    E-Print Network [OSTI]

    O'Brien, James F.

    geometry and lighting, and we render the BRDFs using their final placement within a scene using complexReal-Time BRDF Editing in Complex Lighting Aner Ben-Artzi Columbia University Ryan Overbeck, complex illumination. All-frequency effects (ranging from near-mirror reflections and hard shadows

  3. Developing a Real-Time Identify-and-Locate System for the Blind

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Developing a Real-Time Identify-and-Locate System for the Blind Gemstone Team Vision 1 , Bobby Bobo Lighthouse for the Blind 3 University of Maryland Institute for Advanced Computer Studies 4 University to the blind in the foreseeable future. But despite the rapid advances in computer hardware and vi- sion

  4. Mauve: a Component-based Modeling Framework for Real-time Analysis of Robotic Applications

    E-Print Network [OSTI]

    Mauve: a Component-based Modeling Framework for Real-time Analysis of Robotic Applications Charles paradigm for robotic software devel- opment [2], applied in many applications [3], [4], [5], [6]. Resulting validation of the robotic application, by directly analysing the architecture specification, and limiting

  5. A Framework for Integrating real-time MRI with Robot Control: Application to Simulated

    E-Print Network [OSTI]

    Azevedo, Ricardo

    1 A Framework for Integrating real-time MRI with Robot Control: Application to Simulated applications in urology [2], cardiac ablation with fluoroscopy guided Sensei robotic catheter system (Hansen interventional paradigms including image-guided robot assistance. Most often the use of an intraoperative imaging

  6. Compact real-time 2-D gradient-based analog VLSI motion sensor

    E-Print Network [OSTI]

    Deutschmann, Rainer

    the sensor might be favourably applied in industrial applications. Keywords: analog VLSI, motion sensor selectivity even for very low contrast input is demonstrated. As application it is shown how the pixel, smart vision sensor, parallel image processing, real-time computation, optical ow, machine vision, robot

  7. Improving Building Performance at Urban Scale with a Framework for Real-time Data Sharing

    SciTech Connect (OSTI)

    Pang, Xiufeng; Hong, Tianzhen; Piette, Mary Ann

    2013-06-03T23:59:59.000Z

    This paper describes work in progress toward an urban-scale system aiming to reduce energy use in neighboring buildings by providing three components: a database for accessing past and present weather data from high quality weather stations; a network for communicating energy-saving strategies between building owners; and a set of modeling tools for real-time building energy simulation.

  8. Title of Thesis: HARDWARE SUPPORT FOR REAL-TIME OPERATING SYSTEMS

    E-Print Network [OSTI]

    Jacob, Bruce

    : Paul Kohout Degree and year: Master of Science, 2002 Thesis directed by: Professor Bruce L. Jacob bottlenecks. #12;HARDWARE SUPPORT FOR REAL-TIME OPERATING SYSTEMS by Paul James Kohout Thesis submitted Professor Gang Qu Professor David B. Stewart #12;©Copyright by Paul James Kohout 2002 #12;ii

  9. PulsewidthModulationBased on Real-TimeSolution of Algebraic Harmonic EliminationEquations

    E-Print Network [OSTI]

    Paderborn, Universität

    . Grotstollen Institute for Power Electronics and Electrical Drives,University of Paderbom, Warburger Str. 100 -Determinationof pulse patterns for the eliminationof some low-order harmonics of a PWM inverter necessitates-consumingwhen the equationsare to be solvedin real-time,even when a digitalsignal processor (DSP)is used [14]. A new systemof

  10. Utility Driven Optimization of Real Time Data Broadcast Schedules Rinku Dewria,

    E-Print Network [OSTI]

    Ray, Indrakshi

    Utility Driven Optimization of Real Time Data Broadcast Schedules Rinku Dewria, , Indrakshi Rayb of portable computing devices thoroughly embedded in our day-to-day work and personal life. The de- vices addresses: rdewri@cs.du.edu (Rinku Dewri), iray@cs.colostate.edu (Indrakshi Ray), indrajit

  11. Generating audio-responsive video images in real-time for a live symphony performance

    E-Print Network [OSTI]

    Beane, Allison Brooke

    2007-09-17T23:59:59.000Z

    instruments to cutting-edge video image productions for musical groups of all sizes. Throughout this evolution, a common goal has been to create real-time, audio-responsive visuals that accentuate the sound and enhance the performance. This paper explains...

  12. A Real-time Distributed Storage System for Multi-Resolution Virtual Synchrophasor

    E-Print Network [OSTI]

    Mueller, Frank

    sets of distributed Phasor Data Concentrators (PDCs) collectively process PMU data to achieve real with a certain resolution requirement, a complete set of PMU data can be composed by combining samples from-time distributed storage system to support the virtual PMU data communication. We extend the Chord algorithm so

  13. Modeling FullEnvelope Aerodynamics of Small UAVs in RealTime Prof. Michael Selig

    E-Print Network [OSTI]

    Barthelat, Francois

    D M E S S Modeling FullEnvelope Aerodynamics of Small UAVs in RealTime Prof. Michael Selig Applied Aerodynamics Group and Subsonic Aerodynamics Research Lab Department of Aerospace Engineering will focus on the development of a full six degreeoffreedom aerodynamics modeling environment for small UAVs

  14. Integrating Redundancy Management and Real-time Services for Ultra Reliable Control Systems

    E-Print Network [OSTI]

    Younis, Mohamed

    that their functional semantic is coupled with temporal correctness. Not only the embedded computer needs to perform with that algorithm. Some of the real-time applications are also safety-critical and require high level of reliability and fault-tolerance to ensure uninterrupted service that might risk the safety of the system. Avionics

  15. On-chip real-time single-copy polymerase chain reaction in picoliter droplets

    SciTech Connect (OSTI)

    Beer, N R; Hindson, B; Wheeler, E; Hall, S B; Rose, K A; Kennedy, I; Colston, B

    2007-04-20T23:59:59.000Z

    The first lab-on-chip system for picoliter droplet generation and PCR amplification with real-time fluorescence detection has performed PCR in isolated droplets at volumes 10{sup 6} smaller than commercial real-time PCR systems. The system utilized a shearing T-junction in a silicon device to generate a stream of monodisperse picoliter droplets that were isolated from the microfluidic channel walls and each other by the oil phase carrier. An off-chip valving system stopped the droplets on-chip, allowing them to be thermal cycled through the PCR protocol without droplet motion. With this system a 10-pL droplet, encapsulating less than one copy of viral genomic DNA through Poisson statistics, showed real-time PCR amplification curves with a cycle threshold of {approx}18, twenty cycles earlier than commercial instruments. This combination of the established real-time PCR assay with digital microfluidics is ideal for isolating single-copy nucleic acids in a complex environment.

  16. CSEM WP 136 Is Real-Time Pricing Green?: The Environmental

    E-Print Network [OSTI]

    California at Berkeley. University of

    CSEM WP 136 Is Real-Time Pricing Green?: The Environmental Impacts of Electricity Demand Variance Stephen P. Holland and Erin T. Mansur August 2004 This paper is part of the Center for the Study of Energy Markets (CSEM) Working Paper Series. CSEM is a program of the University of California Energy Institute

  17. Optimal Residential Load Control with Price Prediction in Real-Time

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    for both end users and utility companies. Keywords: Wholesale electricity market, real-time pricing, inclin and automatic residential energy con- sumption scheduling framework which attempts to achieve a desired trade to be used by the price predictor filter. Simulation results show that the combination of the proposed energy

  18. Real time MHD mode control using ECCD in KSTAR: Plan and requirements

    SciTech Connect (OSTI)

    Joung, M.; Woo, M. H.; Jeong, J. H.; Hahn, S. H.; Yun, S. W.; Lee, W. R.; Bae, Y. S.; Oh, Y. K.; Kwak, J. G.; Yang, H. L. [National Fusion Research Institute, 52 Eoeun-dong, Yuseong-gu, Daejeon (Korea, Republic of); Namkung, W.; Park, H.; Cho, M. H. [Department of Physics, POSTECH, Hyoja-dong, Nam-gu, Pohang, Gyeongangbuk-do (Korea, Republic of); Kim, M. H.; Kim, K. J.; Na, Y. S. [Department of Nuclear Engineering, Seoul National University, Daehak-dong, Gwanak-gu, Seoul (Korea, Republic of); Hosea, J.; Ellis, R. [Princeton Plasma Physics Laboratory, Princeton (United States)

    2014-02-12T23:59:59.000Z

    For a high-performance, advanced tokamak mode in KSTAR, we have been developing a real-time control system of MHD modes such as sawtooth and Neo-classical Tearing Mode (NTM) by ECH/ECCD. The active feedback control loop will be also added to the mirror position and the real-time detection of the mode position. In this year, for the stabilization of NTM that is crucial to plasma performance we have implemented open-loop ECH antenna control system in KSTAR Plasma Control System (PCS) for ECH mirror movement during a single plasma discharge. KSTAR 170 GHz ECH launcher which was designed and fabricated by collaboration with PPPL and POSTECH has a final mirror of a poloidally and toroidally steerable mirror. The poloidal steering motion is only controlled in the real-time NTM control system and its maximum steering speed is 10 degree/sec by DC motor. However, the latency of the mirror control system and the return period of ECH antenna mirror angle are not fast because the existing launcher mirror control system is based on PLC which is connected to the KSTAR machine network through serial to LAN converter. In this paper, we present the design of real time NTM control system, ECH requirements, and the upgrade plan.

  19. Performance Tests of a 12-Channel Real-Time GPS L1 Software Receiver

    E-Print Network [OSTI]

    Psiaki, Mark L.

    Geospace Mission Definition Team. ABSTRACT A 12-channel real-time GPS software receiver has been tested code (MMX). This upgrade provides a 25% increases in processing speed. Another aspect that is discussed is the use of 1-bit RF front end data and the related speed- up. The software receiver is tested under static

  20. Telecommunications Policy 28 (2004) 603618 Real-time secondary markets for spectrum

    E-Print Network [OSTI]

    Peha, Jon M.

    , licensing began so that a radio broadcaster or other spectrum-user could build infrastructure without fearTelecommunications Policy 28 (2004) 603­618 Real-time secondary markets for spectrum Jon M. Peha*,1). These markets would fulfill a need not met by other common regulatory paradigms, such as traditional licensing