National Library of Energy BETA

Sample records for real time pricing

  1. Rethinking Real Time Electricity Pricing

    E-Print Network [OSTI]

    Allcott, Hunt

    Most US consumers are charged a near-constant retail price for electricity, despite substantial hourly variation in the wholesale market price. This paper evaluates the .rst program to expose residential consumers to hourly ...

  2. Visualizations for Real-time Pricing Demonstration

    SciTech Connect (OSTI)

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

    2014-10-13

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

  3. 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 ...

  4. Volatility of Power Grids under Real-Time Pricing

    E-Print Network [OSTI]

    Roozbehani, Mardavij; Mitter, Sanjoy K

    2011-01-01

    The paper proposes a framework for modeling and analysis of the dynamics of supply, demand, and clearing prices in power system with real-time retail pricing and information asymmetry. Real-time retail pricing is characterized by passing on the real-time wholesale electricity prices to the end consumers, and is shown to create a closed-loop feedback system between the physical layer and the market layer of the power system. In the absence of a carefully designed control law, such direct feedback between the two layers could increase volatility and lower the system's robustness to uncertainty in demand and generation. A new notion of generalized price-elasticity is introduced, and it is shown that price volatility can be characterized in terms of the system's maximal relative price elasticity, defined as the maximal ratio of the generalized price-elasticity of consumers to that of the producers. As this ratio increases, the system becomes more volatile, and eventually, unstable. As new demand response technolo...

  5. EFFICIENT PRICING IN ELECTRICITY MARKETS: WHO IS ON REAL-TIME PRICING 

    E-Print Network [OSTI]

    Fontana, Michelle

    2011-08-08

    commercial and industrial users of electricity pay prices that reflect the social cost of power at the time of consumption. This pricing mechanism is called “real-time pricing” (RTP) in electricity markets. I have access to a unique, new dataset of virtually...

  6. Real-time Pricing Demand Response in Operations

    SciTech Connect (OSTI)

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

    2012-07-26

    Abstract—Dynamic 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.

  7. 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 ...

  8. 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@tum.de Abstract--In this paper, we propose a new real-time retail pricing model characterized by ex and robustness properties than pure exant´e pricing. Index Terms--Real-Time Pricing, Market Stability, Economic

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

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

    the validity of the following statement: "the coincidence of high electric energy prices and peak solar electric photovoltaic (PV) output can improve the economics of PV...

  10. Analysis of Competitive Electricity Markets under a New Model of Real-Time Retail Pricing with

    E-Print Network [OSTI]

    Hirche, Sandra

    Analysis of Competitive Electricity Markets under a New Model of Real-Time Retail Pricing with Ex loop system. Under this pricing mechanism, electricity is priced at the exant´e price (calculated based, dahleh, mitter}@mit.edu Siemens Corporate Technology, Munich, Germany dragan

  11. Real-Time Pricing for Demand Response Based on Stochastic Approximation

    E-Print Network [OSTI]

    Wong, Vincent

    1 Real-Time Pricing for Demand Response Based on Stochastic Approximation Pedram Samadi, Student to reduce their energy expenses. Keywords: Demand response, real-time pricing, PAR minimiza- tion, stochastic approximation, simultaneous perturbation. I. INTRODUCTION Demand response (DR) is an important

  12. Effect of real-time electricity pricing on renewable generators and system emissions

    E-Print Network [OSTI]

    Connolly, Jeremiah P. (Jeremiah Peter)

    2008-01-01

    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 ...

  13. Pricing mechanism for real-time balancing in regional electricity markets

    E-Print Network [OSTI]

    de Weerdt, Mathijs

    for precisely controlling the real-time balance in electricity markets, where retail brokers aggregate of their retail customer loads and sources. We enumerate the desirable properties of a market-based balancingPricing mechanism for real-time balancing in regional electricity markets Mathijs de Weerdt

  14. A Survey of Utility Experience with Real Time Pricing

    E-Print Network [OSTI]

    Barbose, Galen; Goldman, Charles; Neenan, Bernie

    2004-01-01

    Electric n/a California Power Exchange Marginal T&D adder (prices at the California Power Exchange. The second pricestate’s short-lived Power Exchange, and most participants

  15. A Survey of Utility Experience with Real Time Pricing

    E-Print Network [OSTI]

    Barbose, Galen; Goldman, Charles; Neenan, Bernie

    2004-01-01

    marginal energy cost. Prior to restructuring in California,energy costs were based on the day-ahead market clearing prices at the Californiaenergy costs without having to modify their consumption patterns. Southern California

  16. A Survey of Utility Experience with Real Time Pricing

    SciTech Connect (OSTI)

    Barbose, Galen; Goldman, Charles; Neenan, Bernie

    2004-12-01

    While more than 70 utilities in the U.S. have offered voluntary RTP tariffs on either a pilot or permanent basis, most have operated in relative obscurity. To bring this broad base of experience to bear on policymakers current efforts to stimulate price responsive demand, we conducted a survey of 43 voluntary RTP tariffs offered in 2003. The survey involved telephone interviews with RTP program managers and other utility staff, as well as a review of regulatory documents, tariff sheets, program evaluations, and other publicly available sources. Based on this review of RTP program experience, we identify key trends related to: utilities motivations for implementing RTP, evolution of RTP tariff design, program participation, participant price response, and program outlook. We draw from these findings to discuss implications for policymakers that are currently considering voluntary RTP as a strategy for developing price responsive demand.

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

    E-Print Network [OSTI]

    McCalley, James D.

    MIDWEST ISO CO-OPTIMIZATION BASED REAL-TIME DISPATCH AND PRICING OF ENERGY AND ANCILLARY SERVICES and ancillary service co-optimization is reported in this paper. The key components of Midwest ISO's real words ­ Real-time dispatch and pricing, LMP, Energy and ancillary service co-optimization, Intra

  18. Optimal Real-time Pricing Algorithm Based on Utility Maximization for Smart Grid

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    Optimal Real-time Pricing Algorithm Based on Utility Maximization for Smart Grid Pedram Samadi algorithm for the future smart grid. We focus on the interactions between the smart meters and the energy-mail:{psamadi, hamed, rschober, vincentw, jurij}@ece.ubc.ca Abstract--In this paper, we consider a smart power infras

  19. 1822 IEEE TRANSACTIONS ON SMART GRID, VOL. 3, NO. 4, DECEMBER 2012 Real-Time Price-Based Demand Response

    E-Print Network [OSTI]

    Fu, Yong

    , real-time price-based demand response management, residential appli- ances, robust optimization1822 IEEE TRANSACTIONS ON SMART GRID, VOL. 3, NO. 4, DECEMBER 2012 Real-Time Price-Based Demand Response Management for Residential Appliances via Stochastic Optimization and Robust Optimization Zhi Chen

  20. Want to Put an End to Capacity Markets? Think Real-Time Pricing

    SciTech Connect (OSTI)

    Reeder, Mark

    2006-07-15

    The amount of generation capacity that must be installed to meet resource adequacy requirements often causes the energy market to be suppressed to the point that it fails to produce sufficient revenues to attract new entry. A significant expansion in the use of real-time pricing can, over time, cause the energy market to become a more bountiful source of revenues for generators, allowing the elimination of the capacity market. (author)

  1. Quantitative analysis of real-time systems using priced timed automata

    E-Print Network [OSTI]

    Doyen, Laurent

    Aalborg Universitet 9220 Aalborg � ­ Denmark The problems of time-dependent behavior in general- tional key quantities include energy and mem- ory consumption, in communication networks required band for a given production are crucial quantities. The extended notion of priced or weighted timed automata has

  2. Automatic control of electric thermal storage (heat) under real-time pricing. Final report

    SciTech Connect (OSTI)

    Daryanian, B.; Tabors, R.D.; Bohn, R.E. [Tabors Caramanis and Associates, Inc. (United States)

    1995-01-01

    Real-time pricing (RTP) can be used by electric utilities as a control signal for responsive demand-side management (DSM) programs. Electric thermal storage (ETS) systems in buildings provide the inherent flexibility needed to take advantage of variations in prices. Under RTP, optimal performance for ETS operations is achieved under market conditions where reductions in customers` costs coincide with the lowering of the cost of service for electric utilities. The RTP signal conveys the time-varying actual marginal cost of the electric service to customers. The RTP rate is a combination of various cost components, including marginal generation fuel and maintenance costs, marginal costs of transmission and distribution losses, and marginal quality of supply and transmission costs. This report describes the results of an experiment in automatic control of heat storage systems under RTP during the winter seasons of 1989--90 and 1990--91.

  3. Wealth Transfers Among Large Customers from Implementing Real-Time Retail Electricity Pricing

    E-Print Network [OSTI]

    Borenstein, Severin

    2007-01-01

    for the electrical energy they consume would eliminate theconsume disproportionately at times when the retail price of the energy

  4. AEP Ohio gridSMART Demonstration Project Real-Time Pricing Demonstration Analysis

    SciTech Connect (OSTI)

    Widergren, Steven E.; Subbarao, Krishnappa; Fuller, Jason C.; Chassin, David P.; Somani, Abhishek; Marinovici, Maria C.; Hammerstrom, Janelle L.

    2014-02-01

    This report contributes initial findings from an analysis of significant aspects of the gridSMART® Real-Time Pricing (RTP) – Double Auction demonstration project. Over the course of four years, Pacific Northwest National Laboratory (PNNL) worked with American Electric Power (AEP), Ohio and Battelle Memorial Institute to design, build, and operate an innovative system to engage residential consumers and their end-use resources in a participatory approach to electric system operations, an incentive-based approach that has the promise of providing greater efficiency under normal operating conditions and greater flexibility to react under situations of system stress. The material contained in this report supplements the findings documented by AEP Ohio in the main body of the gridSMART report. It delves into three main areas: impacts on system operations, impacts on households, and observations about the sensitivity of load to price changes.

  5. 1926 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 27, NO. 4, NOVEMBER 2012 Volatility of Power Grids Under Real-Time Pricing

    E-Print Network [OSTI]

    Mitter, Sanjoy K.

    of the dynamics of supply, demand, and clearing prices in power systems with real-time retail pricing1926 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 27, NO. 4, NOVEMBER 2012 Volatility of Power Grids consumers, real-time pricing creates a closed-loop feedback system between the physical layer and the market

  6. Killing Two Birds with One Stone: Can Real-Time Pricing SupportRetail Competition and Demand Response?

    SciTech Connect (OSTI)

    Barbose, Galen; Bharvirkar, Ranjit; Goldman, Charles; Hopper,Nicole; Neenan, Bernie

    2006-04-25

    As retail choice states reach the end of their transitional, rate-cap periods, state regulators must decide what type of default supply service to provide to customers that have not switched to a competitive retail supplier. In a growing number of states, regulators have adopted real-time pricing (RTP) as the default service for large commercial and industrial (C&I) customers. Although this trend is driven chiefly by policy objectives related to retail competition, default service RTP may have the added benefit of stimulating demand response. To evaluate the potential role of RTP as a means to both ends--retail market development and demand response--we conducted a comprehensive review of experience with default RTP in the U.S. and examined the emergence of RTP as a product offering by competitive retail suppliers. Across the ten utilities with default RTP in place in 2005, between 5% and 35% of the applicable load remained on the rate. Based on interviews with competitive retailers, we find evidence to suggest that a comparable amount of load in these states has switched to hourly pricing arrangements with competitive retailers. Many customers on default or competitive hourly pricing are paying prices indexed to the real-time spot market, and thus have no advance knowledge of prices. Because the price responsiveness of customers under these conditions has yet to be formally analyzed, and relatively few efforts have been undertaken to help these customers become price responsive, the actual demand response impacts from hourly pricing in retail choice states remains largely an open question. However, we find that policymakers and other stakeholders in retail choice states have various strategies at their disposal to capture the potential demand response benefits from hourly pricing, while simultaneously supporting retail competition.

  7. The Dynamics of Real Estate Prices

    E-Print Network [OSTI]

    Case, Bradford; Quigley, John M.

    1988-01-01

    Techniques for Developing Real Estate Price Indices,"Regression Method for Real Estate Price Index Construction,&Berkeley FISHER CENTER FOR REAL ESTATE AND URBAN ECONOMICS p

  8. Real-Time Pricing- A Flexible Alternative for Electrical Power Supply 

    E-Print Network [OSTI]

    Reynolds, S. D.; Frye, A. O. Jr.

    1991-01-01

    place greater emphasis on developing programs that benefit the customer while at the same time benefiting the utility. Economy Surplus Power (ESP) is such a program. ESP offers industrial customers attractively priced power supply arrangements based... at a rate far below what had been forecasted a decade earlier. Sales to large industrial customers were depressed. At the same time TVA faced a temporary surplus of generating capacity. Viewed independently, each <1f these problems has the makings...

  9. Distributed Energy Consumption Control via Real-Time Pricing Feedback in Smart Grid

    E-Print Network [OSTI]

    Ma, Kai; Hu, Guoqiang; Spanos, Costas J

    2014-01-01

    estimates the average demand of consumers based on the historical data and then publishes the electricity price

  10. IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. X, NO. Y, MONTH 2012 1 Volatility of Power Grids under Real-Time Pricing

    E-Print Network [OSTI]

    Bhatia, Sangeeta

    IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. X, NO. Y, MONTH 2012 1 Volatility of Power Grids under for engineering modern power grids with the capacity to integrate renewable energy resources at large scale of the dynamics of supply, demand, and clearing prices in power systems with real-time retail pricing

  11. Real Time Pricing as a Default or Optional Service for C&ICustomers: A Comparative Analysis of Eight Case Studies

    SciTech Connect (OSTI)

    Barbose, Galen; Goldman, Charles; Bharvirkar, Ranjit; Hopper,Nicole; Ting, Michael; Neenan, Bernie

    2005-08-01

    Demand response (DR) has been broadly recognized to be an integral component of well-functioning electricity markets, although currently underdeveloped in most regions. Among the various initiatives undertaken to remedy this deficiency, public utility commissions (PUC) and utilities have considered implementing dynamic pricing tariffs, such as real-time pricing (RTP), and other retail pricing mechanisms that communicate an incentive for electricity consumers to reduce their usage during periods of high generation supply costs or system reliability contingencies. Efforts to introduce DR into retail electricity markets confront a range of basic policy issues. First, a fundamental issue in any market context is how to organize the process for developing and implementing DR mechanisms in a manner that facilitates productive participation by affected stakeholder groups. Second, in regions with retail choice, policymakers and stakeholders face the threshold question of whether it is appropriate for utilities to offer a range of dynamic pricing tariffs and DR programs, or just ''plain vanilla'' default service. Although positions on this issue may be based primarily on principle, two empirical questions may have some bearing--namely, what level of price response can be expected through the competitive retail market, and whether establishing RTP as the default service is likely to result in an appreciable level of DR? Third, if utilities are to have a direct role in developing DR, what types of retail pricing mechanisms are most appropriate and likely to have the desired policy impact (e.g., RTP, other dynamic pricing options, DR programs, or some combination)? Given a decision to develop utility RTP tariffs, three basic implementation issues require attention. First, should it be a default or optional tariff, and for which customer classes? Second, what types of tariff design is most appropriate, given prevailing policy objectives, wholesale market structure, ratemaking practices and standards, and customer preferences? Third, if a primary goal for RTP implementation is to induce DR, what types of supplemental activities are warranted to support customer participation and price response (e.g., interval metering deployment, customer education, and technical assistance)?

  12. Real Estate Price Measurement and Stability Crises

    E-Print Network [OSTI]

    Wallace, Nancy

    2011-01-01

    modeling approach, Real Estate Economics 32, 297–328.regression method for real estate price index construction,to redevelop, Journal of Real Estate Finance and Economics

  13. Real Estate Prices and Economic Cycles

    E-Print Network [OSTI]

    Quigley, John M.

    2002-01-01

    Prices,” Journal of Real Estate Finance and Economics, 3,Mortgage Default Risk and Real Estate Prices: The Use ofFutures and Options in Real Estate,” Journal of Housing

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

    E-Print Network [OSTI]

    ) problem where future thermal demand and electricity prices are predicted. The proposed method uses show that significant cost reduction can be obtained. I. INTRODUCTION Cutting peak electricity demand for the next day is defined taking account of thermal demand for the TES system and electricity prices

  15. Are there Gains from Pooling Real-Time Oil Price Forecasts?

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry NaturalPrices1 Table 1.101 (Million Short Tons) U.S. Energy5Are

  16. 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

    2005-01-01

    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

  17. Price Discovery in Time and Space: The Course of Condominium Prices in Singapore

    E-Print Network [OSTI]

    Hwang, Min; Quigley, John M.

    2007-01-01

    Method for Real Estate Price Index Construction,” Journal ofAutocorrelation in House Prices,” Journal of Real Estate1997), “Quotes, Order Flow, and Price Discovery,” Journal of

  18. Calculating Long-Term Trends in the Real Real Prices of Primary Commodities

    E-Print Network [OSTI]

    Calculating Long-Term Trends in the Real Real Prices of Primary Commodities: Deflator Adjustment method for re-assessing all earlier studies on long-term trends in commodity prices by accounting calculating a corrected `real real' commodity price series, as was done recently, for example, in Svedberg

  19. Real Estate Prices and Economic Cycles

    E-Print Network [OSTI]

    Quigley, John M.

    2002-01-01

    in construction and price development were synchronized with3 Models of Housing price Development Based on EconomicTable 4 Models of Housing Price Development Based on Lagged

  20. VOLATILITY TIME AND PROPERTIES OF OPTION PRICES

    E-Print Network [OSTI]

    Janson, Svante

    VOLATILITY TIME AND PROPERTIES OF OPTION PRICES volatility time, to show convexity of option prices in the underlying asset if the contract function is convex as well as continuity and monotonicity of the option price in the volatility

  1. Real Estate Price Measurement and Stability Crises

    E-Print Network [OSTI]

    Wallace, Nancy

    2011-01-01

    T. , 1993, Equilibrium and options on real assets, Review ofor the effects of real options com- ponents of real estatearising from the real option components of real estate

  2. Commercial Real Estate: Underwriting, Mortgages, and Prices

    E-Print Network [OSTI]

    Wilcox, James A.

    2012-01-01

    Sirmans, G.S. (2010). Real Estate Finance: Theory & PracticeA. (2009). Commercial Real Estate Valuation: Funda- mentalsSentiment. Journal of Real Estate Finance Economics,

  3. 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.

    1985-05-21

    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.

  4. Price-Maker Economic Bidding in Two-Settlement Pool-Based Markets: The Case of Time-Shiftable Loads

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    are found for the price and energy bids within a relatively short amount of computational time. A detailed bidding, price bids, energy bids, day-ahead market, real-time market, time-shiftable loads, demand to day-ahead market y Energy bid to real-time market p Price bid submitted to the day-ahead market

  5. Optimal Risk-aware Power Procurement for Data Centers in Day-Ahead and Real-Time Electricity Markets

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    : Data Center, Day-ahead Market, Real-time Market, Price Diversity, Power Procurement, Service: (a) The Ameren retail price trends [18]. (b) The PJM wholesale market price trends [19]. prices, [12Optimal Risk-aware Power Procurement for Data Centers in Day-Ahead and Real-Time Electricity

  6. VOLATILITY TIME AND PROPERTIES OF OPTION PRICES: A SUMMARY

    E-Print Network [OSTI]

    Janson, Svante

    VOLATILITY TIME AND PROPERTIES OF OPTION PRICES: A SUMMARY volatility time, to show convexity of option prices in the underlying asset if the contract function is convex as well as continuity and monotonicity of the option price in the volatility

  7. Arnold Schwarzenegger REAL-TIME GRID RELIABILITY

    E-Print Network [OSTI]

    Energy Research (PIER) California Energy Commission Beth Chambers Contract Manager Jamie Patterson (VSA) prototype to monitor system voltage conditions and provide real time dispatchers with reliabilityArnold Schwarzenegger Governor REAL-TIME GRID RELIABILITY MANAGEMENT California ISO Real

  8. A Nonlinear Continuous Time Optimal Control Model of Dynamic Pricing and Inventory Control with no

    E-Print Network [OSTI]

    Adida, Elodie

    time optimal control model for studying a dynamic pricing and inventory control problem for a make-to-stock of not introducing any approximation to the real setting: it provides the exact solution of the system. When taking

  9. Housing Price Dynamics in Time and Space: Predictability, Liquidity and Investor Returns

    E-Print Network [OSTI]

    Hwang, Min; Quigley, John M.

    2010-01-01

    1991). New evidence on home prices from Freddie Mac repeatmethod for real estate price index construction. Journal ofC. A. (1996). OFHEO house price indexes: HPI technical

  10. RECOVERING A TIME-HOMOGENEOUS STOCK PRICE PROCESS FROM PERPETUAL OPTION PRICES

    E-Print Network [OSTI]

    RECOVERING A TIME-HOMOGENEOUS STOCK PRICE PROCESS FROM PERPETUAL OPTION PRICES ERIK EKSTR¨OM AND DAVID HOBSON Abstract. It is well-known how to determine the price of perpetual American options if the underlying stock price is a time-homogeneous diffusion. In the present paper we consider the inverse problem

  11. Real time infrared aerosol analyzer

    DOE Patents [OSTI]

    Johnson, Stanley A. (Countryside, IL); Reedy, Gerald T. (Bourbonnais, IL); Kumar, Romesh (Naperville, IL)

    1990-01-01

    Apparatus for analyzing aerosols in essentially real time includes a virtual impactor which separates coarse particles from fine and ultrafine particles in an aerosol sample. The coarse and ultrafine particles are captured in PTFE filters, and the fine particles impact onto an internal light reflection element. The composition and quantity of the particles on the PTFE filter and on the internal reflection element are measured by alternately passing infrared light through the filter and the internal light reflection element, and analyzing the light through infrared spectrophotometry to identify the particles in the sample.

  12. Real time analysis under EDS

    SciTech Connect (OSTI)

    Schneberk, D.

    1985-07-01

    This paper describes the analysis component of the Enrichment Diagnostic System (EDS) developed for the Atomic Vapor Laser Isotope Separation Program (AVLIS) at Lawrence Livermore National Laboratory (LLNL). Four different types of analysis are performed on data acquired through EDS: (1) absorption spectroscopy on laser-generated spectral lines, (2) mass spectrometer analysis, (3) general purpose waveform analysis, and (4) separation performance calculations. The information produced from this data includes: measures of particle density and velocity, partial pressures of residual gases, and overall measures of isotope enrichment. The analysis component supports a variety of real-time modeling tasks, a means for broadcasting data to other nodes, and a great degree of flexibility for tailoring computations to the exact needs of the process. A particular data base structure and program flow is common to all types of analysis. Key elements of the analysis component are: (1) a fast access data base which can configure all types of analysis, (2) a selected set of analysis routines, (3) a general purpose data manipulation and graphics package for the results of real time analysis. Each of these components are described with an emphasis upon how each contributes to overall system capability. 3 figs.

  13. Convex Optimization: from Real-Time Embedded

    E-Print Network [OSTI]

    Convex Optimization: from Real-Time Embedded to Large-Scale Distributed Stephen Boyd Neal Parikh Lectures, UC Berkeley, 3/30/2015 1 #12;Outline Convex Optimization Real-Time Embedded Optimization Large-Scale Distributed Optimization Summary 2 #12;Outline Convex Optimization Real-Time Embedded Optimization Large

  14. 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

  15. Model-Checking One-Clock Priced Timed Automata

    E-Print Network [OSTI]

    Doyen, Laurent

    Model-Checking One-Clock Priced Timed Automata Patricia Bouyer1 , Kim G. Larsen2 , and Nicolas, Denmark kgl@cs.aau.dk Abstract. We consider the model of priced (a.k.a. weighted) timed au- tomata, 18, 7]. In particu- lar, as part of this effort, the notion of priced (or weighted) timed automata [4

  16. ModelChecking OneClock Priced Timed Automata

    E-Print Network [OSTI]

    Doyen, Laurent

    Model­Checking One­Clock Priced Timed Automata Patricia Bouyer 1# , Kim G. Larsen 2## , and Nicolas, Denmark kgl@cs.aau.dk Abstract. We consider the model of priced (a.k.a. weighted) timed au­ tomata, 18, 7]. In particu­ lar, as part of this e#ort, the notion of priced (or weighted) timed automata [4

  17. Real Time Voice Transmission Darshana Shah Real Time Voice transmission over Wireless medium using

    E-Print Network [OSTI]

    Yu, Chansu

    to 300+ MHz Receiver #12;Real Time Voice Transmission Darshana Shah - 3 - LFTX -- DC-30 MHz TransmitterReal Time Voice Transmission Darshana Shah - 1 - Real Time Voice transmission over Wireless medium Yu 06/07/2009 #12;Real Time Voice Transmission Darshana Shah - 2 - Abstract My project is to transmit

  18. Real-Time Computerized Annotation of Pictures Real-Time Computerized Annotation of Pictures

    E-Print Network [OSTI]

    Li, Jia

    Real-Time Computerized Annotation of Pictures Real-Time Computerized Annotation of Pictures Jia Li. Wang alipr.com #12;Real-Time Computerized Annotation of Pictures How Visible Are Web Images? Keukenhof photos Jia Li, James Z. Wang alipr.com #12;Real-Time Computerized Annotation of Pictures ALIPR: Automatic

  19. Myrinet Real Time Protocol with flexible routing 

    E-Print Network [OSTI]

    Kini, Savita

    1998-01-01

    Real Time communication relies on resource reservation ics. along the path of the connection for performance guarantees, typically in terms of bounded delays. A fully distributed admission control scheme for resource allocation in real...

  20. Super Cycles in Real Metals Prices? John T. Cuddington and Daniel Jerrett1

    E-Print Network [OSTI]

    Super Cycles in Real Metals Prices? John T. Cuddington and Daniel Jerrett1 November 2007 April 22 of super cycles."2 Are metal prices currently in the early phase of a ,,super cycle? Many market observers of long cycles. This paper searches for evidence of super cycles in metal prices by using band

  1. Real Options, Non-traded Assets and Utility Indi erence Prices.

    E-Print Network [OSTI]

    Bath, University of

    Real Options, Non-traded Assets and Utility Indi#11;erence Prices. D.G. Hobson #3; March 24, 2003 Abstract We show that the utility indi#11;erence (bid) price of a contingent claim is bounded above by the price under the minimal martingale measure. This bound is indepen- dent of both the utility function

  2. Real Time Grid Reliability Management 2005

    E-Print Network [OSTI]

    Eto, Joe

    2008-01-01

    Energy Management System (SCADA/EMS). In the long term, theadvanced real time control. SCADA is a category of softwareequipment and conditions. SCADA systems include hardware and

  3. Price Formation and the Appraisal Function in Real Estate Markets

    E-Print Network [OSTI]

    Quan, Daniel C.; Quigley, John M.

    1990-01-01

    P.M. , et al. "Managing Real Estate Portfolios. " Goldman Sachs Real Estate Research Publication,D. "Estimating Real Estate’s Systematic Risk from

  4. A Real Time Operating System Survey What the heck is a Real Time system

    E-Print Network [OSTI]

    Groppi, Christopher

    A Real Time Operating System Survey John Ford 1 #12; What the heck is a Real Time system anyway.'' From POSIX 1003.1: ``Realtime in operating systems: the ability of the operating system to pro­ vide­Time Operating System) has to have a real­time kernel ffl Good documentation ffl Good device support ffl Good

  5. Continuous time analysis of fleeting discrete price moves Neil Shephard

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    ) a high proportion of price changes are reversed in a fraction of a second. Our model is analytically`adl`ag price process is a piecewise constant semimartingale with finite activity, finite variation change in continuous time; (iii) a high proportion of price changes are fleeting, reversed in a fraction

  6. REAL TIME SYSTEM OPERATIONS 2006-2007

    E-Print Network [OSTI]

    Eto, Joseph H.

    2008-01-01

    for grid topology changes (implying online  security and Security Constrained Economic Dispatch (SCED) procedures.   Built upon GRID-grid, reliability, real?time operator tools, time synchronized phasor  measurements, voltage security.  

  7. 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

  8. Real time sensor for therapeutic radiation delivery

    DOE Patents [OSTI]

    Bliss, Mary (West Richland, WA); Craig, Richard A. (West Richland, WA); Reeder, Paul L. (Richland, WA)

    1998-01-01

    The invention is a real time sensor for therapeutic radiation. A probe is placed in or near the patient that senses in real time the dose at the location of the probe. The strength of the dose is determined by either an insertion or an exit probe. The location is determined by a series of vertical and horizontal sensing elements that gives the operator a real time read out dose location relative to placement of the patient. The increased accuracy prevents serious tissue damage to the patient by preventing overdose or delivery of a dose to a wrong location within the body.

  9. Real time sensor for therapeutic radiation delivery

    DOE Patents [OSTI]

    Bliss, M.; Craig, R.A.; Reeder, P.L.

    1998-01-06

    The invention is a real time sensor for therapeutic radiation. A probe is placed in or near the patient that senses in real time the dose at the location of the probe. The strength of the dose is determined by either an insertion or an exit probe. The location is determined by a series of vertical and horizontal sensing elements that gives the operator a real time read out dose location relative to placement of the patient. The increased accuracy prevents serious tissue damage to the patient by preventing overdose or delivery of a dose to a wrong location within the body. 14 figs.

  10. Solar Real-Time Pricing: Is Real-Time Electricity Pricing Beneficial to

    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 RankADVANCED MANUFACTURINGEnergy BillsNo.Hydrogen4Energy SmoothEquipmentSolar PV in New York City? |

  11. Aggregate Dynamics in a Large Virtual Economy: Prices and Real Activity in Team Fortress 2*

    E-Print Network [OSTI]

    Baumer, Matt; Kephart, Curtis

    2015-01-01

    The Journal of Political Economy, pages 34–55, 1974. Adamin a Large Virtual Economy: Prices and Real Activity in Teamactivity in a large virtual economy which was designed to

  12. Real Option Pricing with Mean-Reverting Investment and Project Value

    E-Print Network [OSTI]

    Zubelli, Jorge Passamani

    to the invest in an oil field. Like most commodities, oil prices tend to mean-revert, and as a direct result the value of investment in an oil field is also mean-reverting. Consequently, it would not be appropriateReal Option Pricing with Mean-Reverting Investment and Project Value October 1st, 2009 #12;Abstract

  13. Real Option Pricing with Mean-Reverting Investment and Project Value

    E-Print Network [OSTI]

    Zubelli, Jorge Passamani

    is the valuation of the option to the invest in an oil field. Like most commodities, oil prices tend to mean-revert, and as a direct result the value of investment in an oil field is also mean-reverting. Consequently, it wouldReal Option Pricing with Mean-Reverting Investment and Project Value Sebastian Jaimungal , Max

  14. Time-to-Produce, Inventory, and Asset Prices 

    E-Print Network [OSTI]

    Chen, Zhanhui

    2012-10-19

    In a production-based general equilibrium model, I study the impact of time-to-build and time-to-produce technology constraints and inventory on asset prices and macroeconomic quantity dynamics. A time-to-build constraint ...

  15. Real time PCR measurement by fluorescence anisotropy

    E-Print Network [OSTI]

    Crane, Bryan Lee, 1976-

    2005-01-01

    Real-time polymerase chain reaction (PCR) is the gold-standard for quantitation in both mutation and gene expression analyses. Already this technique has found valuable clinical application in disease diagnosis and progression ...

  16. Optimal Production Planning under Time-sensitive Electricity Prices for

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    . The control actions, which balance the electricity supply and demand, differ on the time scale and usuallyOptimal Production Planning under Time-sensitive Electricity Prices for Continuous Power-dependent electricity pricing schemes. In this paper, we describe a deterministic MILP model that allows optimal

  17. REAL TIME SYSTEM OPERATIONS 2006-2007

    SciTech Connect (OSTI)

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

    2008-08-15

    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.

  18. Price Responsiveness of First-time Students A Comparison of the Tuition Price and Financial Aid Responsiveness of

    E-Print Network [OSTI]

    Heller, Don

    Price Responsiveness of First-time Students A Comparison of the Tuition Price and Financial Aid. Heller #12;Price Responsiveness of First-time Students Abstract This study expands on the existing body of student price responsiveness research by comparing the tuition and financial aid sensitivity of first

  19. 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.

    1995-12-26

    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.

  20. Continuous, real time microwave plasma element sensor

    DOE Patents [OSTI]

    Woskov, Paul P. (4 Ledgewood Dr., Bedford, MA 01730); Smatlak, Donna L. (10 Village Hill Rd., Belmont, MA 02178); Cohn, Daniel R. (26 Walnut Hill Rd., Chestnut Hill, MA 02167); Wittle, J. Kenneth (1740 Conestoga Rd., Chester Springs, PA 19425); Titus, Charles H. (323 Echo Valley La., Newton Square, PA 19072); Surma, Jeffrey E. (806 Brian La., Kennewick, WA 99337)

    1995-01-01

    Microwave-induced plasma 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.

  1. 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 Getting Useful Real-Time Feedback About Your Program, presentation slides...

  2. National Spherical Torus Experiment (NSTX) Power Supply Real Time Controller

    E-Print Network [OSTI]

    depends on a real time, high speed, synchronous, and deterministic control system acting on a system Generator" (FG). Each PSS Magnets Power Supply System Plasma Power Supply Real Time Control Plasma Real Time

  3. Real Time Tailpipe Emission Measurements | Department of Energy

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

    Real Time Tailpipe Emission Measurements 2002 DEER Conference Presentation: Brookhaven National Laboratory 2002deerimre.pdf More Documents & Publications Real-Time...

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

    Energy Savers [EERE]

    Steps to Establish a Real-Time Transmission Monitoring System for Transmission Owners and Operators within the Eastern and Western Interconnections Steps to Establish a Real-Time...

  5. 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...

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

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

    Real Time Energy Management, Solar Forecasting Metrics, and More DOE Announces Webinars on Real Time Energy Management, Solar Forecasting Metrics, and More January 31, 2014 -...

  7. Real-Time Chemical Imaging of Bacterial Biofilm Development

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

    Real-Time Chemical Imaging of Bacterial Biofilm Development Real-Time Chemical Imaging of Bacterial Biofilm Development Print Wednesday, 25 August 2010 00:00 Scientists have...

  8. Real Time Grid Reliability Management 2005

    SciTech Connect (OSTI)

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

    2008-07-07

    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.

  9. Real-time control over networks 

    E-Print Network [OSTI]

    Ji, Kun

    2007-09-17

    issues regarding control over networks and can be the guidelines of NCS design. A single actuator ball magnetic-levitation (maglev) system is implemented as a test bed for the real-time control over networks to illustrate and verify the theoretical...

  10. 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)

    2012-05-15

    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.

  11. Statistical Model Checking for Networks of Priced Timed Automata

    E-Print Network [OSTI]

    David, Alexandre

    Statistical Model Checking for Networks of Priced Timed Automata Alexandre David1 , Kim G. Larsen1- and cost-bounded properties. A second contribution of the paper is the application of Statistical Model-time and hybrid systems with quantitative constraints on time, energy or more general continuous aspects [1

  12. Distributed Real-Time Power Balancing in Renewable-Integrated Power Grids

    E-Print Network [OSTI]

    Liang, Ben

    , taking into account the uncertainty of the renewable generation, loads, and energy prices. We and more renewable energy sources such as wind and solar are expected to be integrated into the power grids balancing. Real-time control is mainly motivated by the unpredictability of renewable sources, which can

  13. THE IMPACT OF CITY-LEVEL PERMITTING PROCESSES ON RESIDENTIAL PV INSTALLATION PRICES AND DEVELOPMENT TIMES

    E-Print Network [OSTI]

    Dong, Changgui

    2014-01-01

    The installed price of photovoltaic (PV) systems hasprice and development time of residential photovoltaic (PV)

  14. Real Time Monitoring: Achieving Energy Efficiency 

    E-Print Network [OSTI]

    Rouse, S.

    2009-01-01

    , monitor and target savings Budgeting: Forecast, track and produce variance reports Alarms: Everything that is monitored can be alarmed ? use, demand and price By starting at the meter and ending at the bill ? sustainable energy savings can... operators when the use, demand, price exceeds a predetermined limit. Operators are now empowered to take action, such as shift a portion of the load during price spikes so that energy savings and / or demand savings can be realized. Energy @ Work?s...

  15. Housing Price Dynamics in Time and Space: Predictability, Liquidity and Investor Returns

    E-Print Network [OSTI]

    Hwang, Min; Quigley, John M.

    2010-01-01

    paper, Office of Federal Housing Enterprise Oversight,contract risks in China’s housing market. Journal of RealMaking sense of elevated housing prices. Federal Reserve

  16. Aggregate Dynamics in a Large Virtual Economy: Prices and Real Activity in Team Fortress 2*

    E-Print Network [OSTI]

    Baumer, Matt; Kephart, Curtis

    2015-01-01

    in Synthetic Keys Fancy Fedora Price Time Series Jul?2011Date Stocks Stocks of Fancy Fedora Over all TF2 Players Jul?unique (normal) quality Fancy Fedora. Notes: The date of the

  17. Real-time applications of neural nets

    SciTech Connect (OSTI)

    Spencer, J.E.

    1989-05-01

    Producing, accelerating and colliding very high power, low emittance beams for long periods is a formidable problem in real-time control. As energy has grown exponentially in time so has the complexity of the machines and their control systems. Similar growth rates have occurred in many areas, e.g., improved integrated circuits have been paid for with comparable increases in complexity. However, in this case, reliability, capability and cost have improved due to reduced size, high production and increased integration which allow various kinds of feedback. In contrast, most large complex systems (LCS) are perceived to lack such possibilities because only one copy is made. Neural nets, as a metaphor for LCS, suggest ways to circumvent such limitations. It is argued that they are logically equivalent to multi-loop feedback/forward control of faulty systems. While complimentary to AI, they mesh nicely with characteristics desired for real-time systems. Such issues are considered, examples given and possibilities discussed. 21 refs., 6 figs.

  18. Real Time Simulation of Power Grid Disruptions

    SciTech Connect (OSTI)

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

    2012-11-01

    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.

  19. Real-Time Demand Side Energy Management 

    E-Print Network [OSTI]

    Victor, A.; Brodkorb, M.

    2006-01-01

    • Provides periodic energy consumption reports Demand-Side Energy Management • Compares actual energy cost against defined dynamic targets • Alerts responsible personnel when corrective action is needed • Provides a list of recommended actions... stream_source_info ESL-IE-06-05-24.pdf.txt stream_content_type text/plain stream_size 17485 Content-Encoding UTF-8 stream_name ESL-IE-06-05-24.pdf.txt Content-Type text/plain; charset=UTF-8 Real-Time Demand Side Energy...

  20. Real-time inclinometer using accelerometer MEMS

    E-Print Network [OSTI]

    Hanto, D; Hermanto, B; Puranto, P; Handoko, L T

    2011-01-01

    A preliminary design of inclinometer for real-time monitoring system of soil displacement is proposed. The system is developed using accelerometer sensor with microelectromechanical system (MEMS) device. The main apparatus consists of a single MEMS sensor attached to a solid pipe and stucked pependicularly far away below the soil surface. The system utilizes small fractions of electrical signals from MEMS sensor induced by the pipe inclination due to soil displacements below the surface. It is argued that the system is accurate enough to detect soil displacements responsible for landslides, and then realizes a simple and low cost landslide early warning system.

  1. Flexible Demand Management under Time-Varying Prices

    E-Print Network [OSTI]

    Liang, Yong

    2012-01-01

    2.4 When Price Is Uncertain . . . . . . . . . .of the Parameters of the Price Structures . . . . . . .Day in a Typical Hourly Average Electricity Prices . . . . .

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

    ScienceCinema (OSTI)

    Zhang, Song

    2012-08-29

    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.

  3. Real-time Volumetric Deformable Models for Surgery Simulation using

    E-Print Network [OSTI]

    Real-time Volumetric Deformable Models for Surgery Simulation using Finite Elements volumetric Finite Element models to surgery simulation. In particular it presents three new approaches: Virtual Surgery, Real-Time Deformation, Solid Volumetric Deformable Mod- els, Virtual Reality, Finite

  4. A modelling framework for the prices and times of trades made on the New York stock

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    A modelling framework for the prices and times of trades made on the New York stock exchange Tina for price changes over pre-speci ed intervals of times, such as 30 seconds, 20 minutes or a day option pricing model. In practice almost all the prices at which nancial assets transact live

  5. REAL-TIME WATER WAVES WITH WAVE PARTICLES

    E-Print Network [OSTI]

    Keyser, John

    REAL-TIME WATER WAVES WITH WAVE PARTICLES A Dissertation by Cem Yuksel Submitted to the Office of DOCTOR OF PHILOSOPHY August 2010 Major Subject: Computer Science #12;REAL-TIME WATER WAVES WITH WAVE, Valerie E. Taylor August 2010 Major Subject: Computer Science #12;iii ABSTRACT Real-time Water Waves

  6. Achieving Real-time Mode Estimation through Offline Compilation

    E-Print Network [OSTI]

    Achieving Real-time Mode Estimation through Offline Compilation by John M. Van Eepoel B, Committee on Graduate Students #12;Achieving Real-time Mode Estimation through Offline Compilation2 This page intentionally left blank. #12;Achieving Real-time Mode Estimation through Offline Compilation 3

  7. 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 Center Empowering Minds to Engineer the Future Electric Energy System #12;#12;Real Time PMU for the Power Systems Engineering Research Center (PSERC) research project titled "Real Time PMU-based Stability

  8. In-line real time air monitor

    DOE Patents [OSTI]

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

    1998-01-01

    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.

  9. In-line real time air monitor

    DOE Patents [OSTI]

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

    1998-07-14

    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.

  10. Real time speech formant analyzer and display

    DOE Patents [OSTI]

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

    1987-02-03

    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.

  11. DEZENT: Autonomous Real-Time Management of

    E-Print Network [OSTI]

    Morik, Katharina

    Science College of Electrical Engineering University of Dortmund 44221 Dortmund / Germany 1 This work, electronic negotiations, electric power distribution and management 1. Introduction Rising market prices for feeding electric power from re- newable sources into the public network. Wind or solar power production

  12. Optimizing near real time accountability for reprocessing.

    SciTech Connect (OSTI)

    Cipiti, Benjamin B.

    2010-06-01

    Near Real Time Accountability (NRTA) of actinides at high precision in reprocessing plants has been a long sought-after goal in the safeguards community. Achieving this goal is hampered by the difficulty of making precision measurements in the reprocessing environment, equipment cost, and impact to plant operations. Thus the design of future reprocessing plants requires an optimization of different approaches. The Separations and Safeguards Performance Model, developed at Sandia National Laboratories, was used to evaluate a number of NRTA strategies in a UREX+ reprocessing plant. Strategies examined include the incorporation of additional actinide measurements of internal plant vessels, more use of process monitoring data, and the option of periodic draining of inventory to key tanks. Preliminary results show that the addition of measurement technologies can increase the overall measurement uncertainty due to additional error propagation, so care must be taken when designing an advanced system. Initial results also show that relying on a combination of different NRTA techniques will likely be the best option. The model provides a platform for integrating all the data. The modeling results for the different NRTA options under various material loss conditions will be presented.

  13. The impact of gasoline price changes on traffic safety: a time geography explanation Guangqing Chi a,

    E-Print Network [OSTI]

    Levinson, David M.

    The impact of gasoline price changes on traffic safety: a time geography explanation Guangqing Chi, United States a r t i c l e i n f o Keywords: Time geography Gasoline prices Traffic safety Traffic crashes Fatal crashes Space­time path a b s t r a c t The impact of gasoline price changes on traffic

  14. Computing Optimal Reachability Costs in Priced Dense-Timed Pushdown Automata

    E-Print Network [OSTI]

    Abdulla, Parosh Aziz

    Computing Optimal Reachability Costs in Priced Dense-Timed Pushdown Automata Parosh Aziz Abdulla a given time interval. Furthermore, the model is priced in the sense that there is a cost function not exist (e.g., even in priced timed automata it can happen that there is no computation of cost 0

  15. Aggregate Dynamics in a Large Virtual Economy: Prices and Real Activity in Team Fortress 2*

    E-Print Network [OSTI]

    Baumer, Matt; Kephart, Curtis

    2015-01-01

    Jackman. Introducing the chained consumer price index.International Working Group on Price Indices (Ottawa Group):Fund. Export and import price index manual: theory and

  16. Real-Time Task Scheduling under Thermal Constraints 

    E-Print Network [OSTI]

    Ahn, Youngwoo

    2010-10-12

    periodic tasks and non-real-time, but latency-sensitive, aperiodic jobs. We first introduce the Transient Overclocking Server, which safely reduces the response time of aperiodic jobs in the presence of hard real-time periodic tasks and thermal constraints...

  17. Real-Time Computing Using GPUs The Challenge

    E-Print Network [OSTI]

    Pollefeys, Marc

    -time constraints exist. For example, envisioned automated automotive systems will require real-time sensing applications on heterogeneous platforms that may have multiple CPUs and GPUs. The Approach This goal-time applications implemented on GPU-enabled multicore platforms. This project will contribute new real

  18. Instrumenting Wireless Sensor Networks for Real-Time Surveillance

    E-Print Network [OSTI]

    Instrumenting Wireless Sensor Networks for Real-Time Surveillance Songhwai Oh, Phoebus Chen information is not available, the classification-based tracking algorithm behaves as the NNF. Considering

  19. Real-Time Measurement of Diesel Trap Efficiency | Department...

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

    Measurement of Diesel Trap Efficiency Real-Time Measurement of Diesel Trap Efficiency 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters...

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

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

    System Microwave Plasma Monitoring System For Real-Time Elemental Analysis The invention apparatus can also be used to monitor for the presence of halogens, sulfur and...

  1. Real-Time Simultaneous Measurements of Size, Density, and Composition...

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

    Simultaneous Measurements of Size, Density, and Composition of Single Ultrafine Diesel Tailpipe Particles Real-Time Simultaneous Measurements of Size, Density, and Composition of...

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

    E-Print Network [OSTI]

    Alireza Soroudi

    2015-01-03

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

  3. Real-Time Chemical Imaging of Bacterial Biofilm Development

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

    has led to unprecedented study of dynamic processes. The ability to image the chemical reactions in living cells in real time, especially in parallel with fluorescence...

  4. Tracking Living Cells as They Differentiate in Real Time

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

    protein phosphorylation inside living mammalian cells, enabling them to follow cellular chemical changes in real time, without bias. Advancing Medicine with Infrared Light...

  5. Real-Time Chemical Imaging of Bacterial Biofilm Development

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

    Real-Time Chemical Imaging of Bacterial Biofilm Development Print Scientists have developed a robust and label-free method to probe the chemical underpinnings of developing...

  6. Optimal Real-time Dispatch for Integrated Energy Systems

    SciTech Connect (OSTI)

    Firestone, Ryan Michael

    2007-05-31

    This report describes the development and application of a dispatch optimization algorithm for integrated energy systems (IES) comprised of on-site cogeneration of heat and electricity, energy storage devices, and demand response opportunities. This work is intended to aid commercial and industrial sites in making use of modern computing power and optimization algorithms to make informed, near-optimal decisions under significant uncertainty and complex objective functions. The optimization algorithm uses a finite set of randomly generated future scenarios to approximate the true, stochastic future; constraints are included that prevent solutions to this approximate problem from deviating from solutions to the actual problem. The algorithm is then expressed as a mixed integer linear program, to which a powerful commercial solver is applied. A case study of United States Postal Service Processing and Distribution Centers (P&DC) in four cities and under three different electricity tariff structures is conducted to (1) determine the added value of optimal control to a cogeneration system over current, heuristic control strategies; (2) determine the value of limited electric load curtailment opportunities, with and without cogeneration; and (3) determine the trade-off between least-cost and least-carbon operations of a cogeneration system. Key results for the P&DC sites studied include (1) in locations where the average electricity and natural gas prices suggest a marginally profitable cogeneration system, optimal control can add up to 67% to the value of the cogeneration system; optimal control adds less value in locations where cogeneration is more clearly profitable; (2) optimal control under real-time pricing is (a) more complicated than under typical time-of-use tariffs and (b) at times necessary to make cogeneration economic at all; (3) limited electric load curtailment opportunities can be more valuable as a compliment to the cogeneration system than alone; and (4) most of the trade-off between least-cost and least-carbon IES is determined during the system design stage; for the IES system considered, there is little difference between least-cost control and least-carbon control.

  7. Pricing of Claims in Discrete Time with Partial Information

    SciTech Connect (OSTI)

    Rognlien Dahl, Kristina, E-mail: kristrd@math.uio.no [University of Oslo, Department of Mathematics (Norway)

    2013-10-15

    We consider the pricing problem of a seller with delayed price information. By using Lagrange duality, a dual problem is derived, and it is proved that there is no duality gap. This gives a characterization of the seller's price of a contingent claim. Finally, we analyze the dual problem, and compare the prices offered by two sellers with delayed and full information respectively.

  8. Real-Time Pricing of Electricity: An Assessment 

    E-Print Network [OSTI]

    Baughman, M. L.; Zarnikau, J.

    1989-01-01

    Increasing competitive pressures, advances in technology, interest in deregulation, new planning strategies, and dissatisfaction with present rate designs have encouraged the recent development of a number of new electric rate design schemes...

  9. Utility Assessments for Real Time Pricing and Demand Response Environments 

    E-Print Network [OSTI]

    Robinson, J. E.

    2015-01-01

    A load research project by the Florida Power Corporation (FPC) is monitoring 200 residences in Central Florida, collecting detailed end-use load data. The monitoring is being performed to better estimate the impact of FPC's ...

  10. {Control of Residential Load Management Networks Using Real Time Pricing

    E-Print Network [OSTI]

    Burke, William Jerome

    2010-01-01

    and efficiency in power market design”. In Advances in Poweris more a question of market design and is left for relatedissues related to the market design that are outside the

  11. Real Time Pricing Tie Line Control: A Case Study 

    E-Print Network [OSTI]

    Childress, R.

    1999-01-01

    A Tie Line Control System maintains the purchase quantity of electrical energy an industrial facility buys from a utility company. Implementing an advanced Tie Line Control system automates the buy versus make decision process for an industrial...

  12. {Control of Residential Load Management Networks Using Real Time Pricing

    E-Print Network [OSTI]

    Burke, William Jerome

    2010-01-01

    modeling and control of load management. Further, withoutA profit-based load management using linear programming”.with applica- tions to load management assessment and load

  13. Computing Time-Dependent Bid-Prices in Network Revenue Management Problems

    E-Print Network [OSTI]

    Topaloglu, Huseyin

    Computing Time-Dependent Bid-Prices in Network Revenue Management Problems Huseyin Topaloglu School for computing bid-prices in network revenue management problems. The novel aspect of our method is that it naturally provides bid-prices that depend on how much time is left until the departure. Our method provides

  14. Strategic Management for Real-Time Business Intelligence

    E-Print Network [OSTI]

    Palpanas, Themis

    Strategic Management for Real-Time Business Intelligence Konstantinos Zoumpatianos, Themis Palpanas directions. 1 Introduction Strategic Management (SM) is concerned with the continuous evaluation and control-Verlag Berlin Heidelberg 2013 #12;Strategic Management for Real-Time Business Intelligence 119 occur and keep

  15. Author's personal copy GPU based real-time instrument tracking

    E-Print Network [OSTI]

    Author's personal copy GPU based real-time instrument tracking with three-dimensional ultrasound q April 2007; accepted 4 June 2007 Available online 5 July 2007 Abstract Real-time three-dimensional ultrasound enables new intracardiac surgical procedures, but the distorted appearance of instruments

  16. 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

  17. The Future of Real-time Cardiac Magnetic Resonance Imaging

    E-Print Network [OSTI]

    Southern California, University of

    Address *Electrical Engineering-Systems, 3740 McClintock Avenue, EEB 406, University of Southern. These and other factors require real-time imaging. Magnetic resonance imaging (MRI) is a powerful and flexible with excellent image quality. In this article, the term real-time refers to imaging sys- tems that acquire

  18. 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

  19. Real-Time Plasma Control Tools for Advanced Tokamak Operation

    SciTech Connect (OSTI)

    Varandas, C. A. F.; Sousa, J.; Rodrigues, A. P.; Carvalho, B. B.; Fernandes, H.; Batista, A. J.; Cruz, N.; Combo, A.; Pereira, R. C. [Centro de FuSao Nuclear, Associacao Euratom/IST, Instituto Superior Tecnico, Av. Rovisco Pais, P-1049-001 Lisbon (Portugal)

    2006-12-04

    Real-time control will play an important role in the operation and scientific exploitation of the new generation fusion devices. This paper summarizes the real-time systems and diagnostics developed by the Portuguese Fusion Euratom Association based on digital signal processors and field programmable gate arrays.

  20. Real Time Pedestrian Tracking using Thermal Infrared Imagery

    E-Print Network [OSTI]

    Del Moral , Pierre

    Real Time Pedestrian Tracking using Thermal Infrared Imagery Jianfu Li 1. Key Laboratory@cqu.edu.cn Abstract--In the study, a real time pedestrian tracking algortithm is presented using thermal infrared imagery. It makes use of the characteristics of pedestrian body regions in infrared images, which is based

  1. Hyper-Real-Time Ice Simulation and Modeling Using GPGPU

    E-Print Network [OSTI]

    Peters, Dennis

    Hyper-Real-Time Ice Simulation and Modeling Using GPGPU By c Shadi Alawneh, B. Eng., M. Eng's, Newfoundland Title: Hyper-Real-Time Ice Simulation and Modeling Using GPGPU Author: Shadi Alawneh, B. Eng operating in pack ice is a computationally in- tensive process to which General Purpose Computing

  2. Real Time Flux Control in PM Motors

    SciTech Connect (OSTI)

    Otaduy, P.J.

    2005-09-27

    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.

  3. List Processing in Real Time on a Serial Computer

    E-Print Network [OSTI]

    Baker, Henry G. Jr.

    1977-04-01

    A real-time list processing system is one in which the time required by each elementary list operation (CONS, CAR, CDR, RPLACA, RPLACD, EQ, and ATOM in LISP) is bounded by a (small) constant. Classical list processing ...

  4. Software development with real-time collaborative editing

    E-Print Network [OSTI]

    Goldman, Max, Ph. D. Massachusetts Institute of Technology

    2012-01-01

    This thesis presents Collabode, a web-based integrated development environment for Java. With real-time collaborative editing, multiple programmers can use Collabode to edit the same source code at the same time. Collabode ...

  5. Real-time communication in FDDI-based networks 

    E-Print Network [OSTI]

    Kumar, Amit Virendra

    1995-01-01

    The Fiber Distributed Data Interface (FDDI) is recommended as a candidate for many hard real-time local-area communication systems. The Timed-Token Medium Access Control (MAC) Protocol of FDDI is capable of guaranteeing ...

  6. Real-time Multi-period truckload routing problems

    E-Print Network [OSTI]

    Limpaitoon, Tanachai

    2008-01-01

    In this thesis we consider a multi-period truckload pick-up and delivery problem dealing with real-time requests over a finite time horizon. We introduce the notion of postponement of requests, whereby the company can ...

  7. Dynamic pricing and stabilization of supply and demand in modern electric power grids

    E-Print Network [OSTI]

    Roozbehani, Mardavij

    The paper proposes a mechanism for real-time pricing of electricity in smart power grids, with price stability as the primary concern. In previous publications the authors argued that relaying the real-time wholesale market ...

  8. Prices

    Gasoline and Diesel Fuel Update (EIA)

    Information AdministrationPetroleum Marketing Annual 1998 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding Taxes) -...

  9. Prices

    Gasoline and Diesel Fuel Update (EIA)

    Information AdministrationPetroleum Marketing Annual 2001 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding Taxes) -...

  10. Prices

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Information AdministrationPetroleum Marketing Annual 1999 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding Taxes) -...

  11. Prices

    U.S. Energy Information Administration (EIA) Indexed Site

    Information AdministrationPetroleum Marketing Annual 2002 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding Taxes) -...

  12. Computing Time-Dependent Bid Prices in Network Revenue Management Problems

    E-Print Network [OSTI]

    Topaloglu, Huseyin

    Computing Time-Dependent Bid Prices in Network Revenue Management Problems Sumit Kunnumkal Indian@orie.cornell.edu July 16, 2009 Abstract We propose a new method to compute bid prices in network revenue management problems. The novel aspect of our method is that it naturally provides dynamic bid prices that depend

  13. Dynamic Pricing Strategies under a Finite Time Horizon Joan Morris DiMicco

    E-Print Network [OSTI]

    to scalpers. Cost has been perhaps the greatest factor precluding the widespread use of dynamic pricing goods, but in digital markets, the costs associated with making frequent, instantaneous price changesDynamic Pricing Strategies under a Finite Time Horizon Joan Morris DiMicco MIT Media Laboratory 20

  14. Optimal Real-time Dispatch for Integrated Energy Systems

    E-Print Network [OSTI]

    Firestone, Ryan Michael

    2007-01-01

    current and forecasted energy prices, energy demand, and DERarises in energy loads, energy prices and IES equipmentenergy loads, and energy prices, regulatory constraints on

  15. Optimal Real-time Dispatch for Integrated Energy Systems

    E-Print Network [OSTI]

    Firestone, Ryan Michael

    2007-01-01

    1. average U.S. commercial natural gas price from 2000 to14. electricity and natural gas prices for January 2004 tonatural gas price..

  16. Vector processing enhancements for real-time image analysis.

    SciTech Connect (OSTI)

    Shoaf, S.; APS Engineering Support Division

    2008-01-01

    A real-time image analysis system was developed for beam imaging diagnostics. An Apple Power Mac G5 with an Active Silicon LFG frame grabber was used to capture video images that were processed and analyzed. Software routines were created to utilize vector-processing hardware to reduce the time to process images as compared to conventional methods. These improvements allow for more advanced image processing diagnostics to be performed in real time.

  17. A TECHNIQUE FOR TESTING HIGHLY RELIABLE REAL-TIME SOFTWARE

    E-Print Network [OSTI]

    Bieman, James M.

    Task Plan ® A TECHNIQUE FOR TESTING HIGHLY RELIABLE REAL-TIME SOFTWARE Slide Presentation Biography that uses executable specifications based on Annotated Ada (Anna) for software testing in hard real process and does not interfere with the software under test. 1.0 INTRODUCTION Automating the verification

  18. Mining, Modeling, and Analyzing Real-Time Social Trails 

    E-Print Network [OSTI]

    Kamath, Krishna Y

    2013-05-28

    Real-time social systems are the fastest growing phenomena on the web, enabling millions of users to generate, share, and consume content on a massive scale. These systems are manifestations of a larger trend toward the global sharing of the real...

  19. Near Real-Time Push Middleware

    E-Print Network [OSTI]

    Mal, Siddhartha Byron

    2012-01-01

    The mean time over all tests for SQL lat/lon searches wasmilliseconds, and 264.1 for SQL geography searches (Figureplatform capability between SQL and Java, and to represent

  20. Financial comparison of time-of-use pricing with technical DSM programs and generating plants as electric-utility resource options

    SciTech Connect (OSTI)

    Hill, L.J.

    1994-04-01

    Changing electricity prices to more closely reflect production costs has a significant impact on the consumption of electricity. It is known, for example, that most of the efficiency gains in the electric power sectors of the industrialized world since the first international oil price shock in 1973 are attributable to the rising trend of electricity prices. This was due to the rising average price of electricity. Because of the unique characteristics of producing electricity, its marginal cost is higher than its average cost during many hours of the day. This study shows that, for utilities not reflecting these cost differences in their rates, there is ample room to satisfy a portion of their resource needs by exploiting the load-shaping properties of time-of-use (TOU) rates. Satisfying a portion of resource requirements by implementing a TOU-pricing program, however, is not costless. Metering and administering TOU pricing requires a financial commitment by an electric utility. And the commitment has an opportunity cost. That is, the funds could be used to construct generating plants or run DSM programs (other than a TOU-pricing program) and satisfy the same resource needs that TOU pricing does. The question addressed in this study is whether a utility is better-served financially by (i) implementing TOU pricing or (ii) running technical DSM programs and building power plants. The answer is that TOU pricing compares favorably on a financial basis with other resources under a wide set of conditions that real-world utilities confront.

  1. 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 ...

  2. 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

  3. Fairness and dynamic pricing: comments

    SciTech Connect (OSTI)

    Hogan, William W.

    2010-07-15

    In ''The Ethics of Dynamic Pricing,'' Ahmad Faruqui lays out a case for improved efficiency in using dynamic prices for retail electricity tariffs and addresses various issues about the distributional effects of alternative pricing mechanisms. The principal contrast is between flat or nearly constant energy prices and time-varying prices that reflect more closely the marginal costs of energy and capacity. The related issues of fairness criteria, contracts, risk allocation, cost allocation, means testing, real-time pricing, and ethical policies of electricity market design also must be considered. (author)

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

    SciTech Connect (OSTI)

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

    2008-05-01

    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.

  5. Graphical user interface for real time simulator for relay testing 

    E-Print Network [OSTI]

    Ji, Fang

    1995-01-01

    This thesis presents a design of a graphical user interface for a real time simulator for relay testing. The objectives of this study are achieved successfully by utilizing object-oriented concepts and techniques. The GUI ...

  6. 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...

  7. 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...

  8. Decoupled Sampling for Real-Time Graphics Pipelines

    E-Print Network [OSTI]

    Ragan-Kelley, Jonathan

    2010-03-29

    We propose decoupled sampling, an approach that decouples shading from visibility sampling in order to enable motion blur and depth-of-field at reduced cost. More generally, it enables extensions of modern real-time graphics ...

  9. REAL-TIME OPTIMIZATION FOR AIR LIQUIDE GAS PIPELINES NETWORK

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    REAL-TIME OPTIMIZATION FOR AIR LIQUIDE GAS PIPELINES NETWORK Yash Puranik and Nick Sahinidis (CMU pipelines connecting air separation units and consumers Consumer Consumer O2 network N2 network #12

  10. Real time active sonar simulation in a deep ocean environment

    E-Print Network [OSTI]

    Danesh, Sheida Anya

    2013-01-01

    Accurate Simulations are important in all fields of science and engineering where experiments and real data are time consuming to obtain and are not easily accessible and/or free of cost. Particularly when operating in ...

  11. Artificial Intelligence Design for Real-time Strategy Games

    E-Print Network [OSTI]

    Ernst, Damien

    Artificial Intelligence Design for Real-time Strategy Games Firas Safadi University of Li been challenging intelligence, human and artificial (AI) alike, as one of the top genre in terms

  12. National Spherical Torus Experiment (NSTX) Power Supply Real Time Controller

    E-Print Network [OSTI]

    . The NSTX depends on a real time, high speed, synchronous, and deterministic control system isolated from each other but subject to the same "Firing Generator" (FG). Each PSS Magnets Power Supply

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

    E-Print Network [OSTI]

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

    2014-01-01

    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 ...

  14. Real-time state estimation of laboratory flows

    E-Print Network [OSTI]

    Stransky, Scott (Scott M.)

    2007-01-01

    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 ...

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

    E-Print Network [OSTI]

    Li, Hung

    1995-01-01

    As real-time applications become more and more complicated their demands of processing capacity can hardly be satisfied. Massively parallel computers, such as Intel Paragon, with their scalable architecture and tremendous ...

  16. Wavelets in Real-time Rendering Weifeng Sun

    E-Print Network [OSTI]

    Mukherjee, Amar

    Wavelets in Real-time Rendering by Weifeng Sun B.S. University of Petroleum, China, 1997 M by Weifeng Sun All rights reserved ii #12;ABSTRACT Interactively simulating visual appearance of natural

  17. Real-time Water Waves with Wave Particles 

    E-Print Network [OSTI]

    Yuksel, Cem

    2010-10-12

    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...

  18. A frequency compensated real time DSP GMSK modem 

    E-Print Network [OSTI]

    Aziz, Ahsan Ul

    1998-01-01

    In low-earth-orbit (LEO) satellite applications, frequency offsets due to Doppler can be large, and can degrade significantly receiver performance. In this thesis real-time implementation trade-offs are analyzed for a GMSK modem operating under...

  19. Symbolic diagnosis for intelligent control of real-time systems 

    E-Print Network [OSTI]

    Jowers, Steven James

    1989-01-01

    automation, and aerospace power systems. The approach is to create a generic, symbolic shell to interpret data from 'real-time' numerical processes. The interpreted data is then utilized by com- panion symbolic and numeric modules resulting in a dynamic... 19 24 25 26 28 A. Intelligent control paradigm -overview . B. Software-intensive radio application . C. The Symbolic Diagnostician . . D. Design implementation . E. Real-time constraint 28 32 35 44 46 IV IMPLEMENTING THE DIAGNOSTIC...

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

    DOE Patents [OSTI]

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

    2014-10-21

    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.

  1. Baton Rouge Complex Steam Real Time Optimization 

    E-Print Network [OSTI]

    Iyun, T.

    2014-01-01

    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 20-23, 2014 Proprietary 2 Agenda • Baton... 20-23, 2014 Proprietary 3 Baton Rouge Complex BRRF/BRCP • One of world’s largest integrated, most technologically advanced petroleum/petrochemical complexes, in operation since 1909 • Workforce: over 5,500 • Geographic Area : – BRCP - 150 acres...

  2. Real-time airborne particle analyzer

    DOE Patents [OSTI]

    Reilly, Peter T.A.

    2012-10-16

    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.

  3. Time Extraction from Real-time Generated Football Reports Markus Borg

    E-Print Network [OSTI]

    Time Extraction from Real-time Generated Football Reports Markus Borg D02, Lund Institute information from football match reports generated through minute- by-minute reporting. By using regular ex is presented. 1 Introduction Football reports written in real-time is an increas- ingly popular way to report

  4. A Java Processor Architecture for Embedded Real-Time Systems

    E-Print Network [OSTI]

    A Java Processor Architecture for Embedded Real-Time Systems Martin Schoeberl Institute of Computer conservative estimates. JOP (Java Optimized Processor) tackles this problem from the architectural perspective average case performance. This paper presents a Java processor designed for time-predictable execution

  5. Real-time Dynamic Optimization of Batch Crystallization Processes

    E-Print Network [OSTI]

    Van den Hof, Paul

    process. The seeded fed-batch crystallizer is represented by a nonlinear moment model. An optimal controlReal-time Dynamic Optimization of Batch Crystallization Processes Ali Mesbah, , Alex N. Kalbasenka-time implementations of the proposed strategy reveal the effectiveness of closed-loop optimal control

  6. Toward Real Time Data Analysis for Smart Grids

    SciTech Connect (OSTI)

    Yin, Jian; Gorton, Ian; Sharma, Poorva

    2012-11-10

    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 PNNL’s FPGI and show that our system can provide real time guarantees to a diverse set of applications.

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

    SciTech Connect (OSTI)

    Cockrell, C.D.

    1989-01-01

    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.

  8. 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

    2013-07-01

    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.

  9. 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)

    2014-02-18

    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.

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

    SciTech Connect (OSTI)

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

    2003-04-16

    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.

  11. 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)

    2012-05-22

    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.

  12. A heterogeneous hierarchical architecture for real-time computing

    SciTech Connect (OSTI)

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

    1988-12-01

    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.

  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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners * Impacts onReal-Time Chemical Imaging of Bacterial BiofilmReal-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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) by Carbon-RichProton DeliveryRadioactiveRare |Real-Time ChemicalReal-Time

  15. Residential Customer Response to Real-time Pricing: The Anaheim Critical Peak Pricing Experiment

    E-Print Network [OSTI]

    Wolak, Frank A.

    2007-01-01

    a special “smart meter” on your home. * This meter willwill install a “smart meter” on your home to keep track of

  16. Residential Customer Response to Real-time Pricing: The Anaheim Critical Peak Pricing Experiment

    E-Print Network [OSTI]

    Wolak, Frank A.

    2007-01-01

    The consumption reductions paid rebates during CPP days area CPP rate with a rebate mechanism as the default rate forthese customers received a rebate of 35 cents/KWh for the

  17. Residential Customer Response to Real-time Pricing: The Anaheim Critical Peak Pricing Experiment

    E-Print Network [OSTI]

    Wolak, Frank A.

    2007-01-01

    load in California. Residential demand is approximately 30%12% reduction in statewide residential demand on a statewidefor residential customers with an aggregate peak demand that

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

    E-Print Network [OSTI]

    Pang, Xiufeng

    2013-01-01

    generation building energy simulation program. Energy andReal-Time Building Energy Simulation Using EnergyPlus andREAL-TIME BUILDING ENERGY SIMULATION USING ENERGYPLUS AND

  19. Development of a Time Resolved Fluorescence Spectroscopy System for Near Real-Time Clinical Diagnostic Applications 

    E-Print Network [OSTI]

    Trivedi, Chintan A.

    2010-07-14

    The design and development of a versatile time resolved fluorescence spectroscopy (TRFS) system capable of near real time data acquisition and processing for potential clinical diagnostic applications is reported. The TRFS apparatus is portable...

  20. Real Time Head Pose Estimation from Consumer Depth Cameras

    E-Print Network [OSTI]

    Wolberg, George

    for estimating location and orientation of a person's head, from depth data acquired by a low quality device. OurReal Time Head Pose Estimation from Consumer Depth Cameras Gabriele Fanelli1 , Thibaut Weise2 and the variance of the head position and orientation. We evaluate three different approaches to jointly take

  1. COOPERATIVE REAL-TIME TASK ALLOCATION AMONG GROUPS OF UAVS

    E-Print Network [OSTI]

    Minai, Ali A.

    Chapter 1 COOPERATIVE REAL-TIME TASK ALLOCATION AMONG GROUPS OF UAVS Yan Jin Marios M. Polycarpou of Cincinnati Cincinnati, OH 45221 Abstract Uninhabited autonomous vehicles(UAVs) are an increasingly important, and this is the focus of the research presented here. We consider a heterogeneous group of UAVs drawn from several

  2. REAL TIME MONITORING OF INFRASTRUCTURE USING TDR TECHNOLOGY: CASE HISTORIES

    E-Print Network [OSTI]

    REAL TIME MONITORING OF INFRASTRUCTURE USING TDR TECHNOLOGY: CASE HISTORIES Kevin M. O Reflectometry (TDR) is a versatile technology amenable to a variety of measurements and nondestructive in a companion paper and this paper focuses on case histories in which TDR was used to monitor deformation

  3. 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

  4. Real-time Photo Mining from the Twitter Stream

    E-Print Network [OSTI]

    Yanai, Keiji

    Real-time Photo Mining from the Twitter Stream: Event Photo Discovery and Food Photo Detection-Communications, Tokyo, Japan #12;Background ·Various kinds of photos are posted to microblogs every minutes. ·The photos photo source than Flickr. #12;Twitter vs. Flickr as photo sources ·Everyday life · w/ tweet messages

  5. 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

  6. Prediction of traffic flow for real-time control 

    E-Print Network [OSTI]

    Chandrasekaran, Priya

    1998-01-01

    The prediction of traffic flow on a network and the relationship of these flows to the traffic control signal settings are major factors in the development of an adaptive real-time signal system. PASSER IV is an arterial system optimization package...

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

    E-Print Network [OSTI]

    Heinemann, Detlev

    Accuracy 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 #12;EMS/ECAM 2007 ­ Nadja Saleck Wind power forecast data observed wind power input (2004 ­ 2006

  8. REAL TIME ACQUISITION AND RENDERING OF LARGE 3D MODELS

    E-Print Network [OSTI]

    Rusinkiewicz, Szymon

    OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Szymon Marek Rusinkiewicz August 2001 #12;ii c Copyright grid, and point (splat) rendering is used to provide a real-time display of the partial 3D model. Given, backface culling, level-of-detail control, and splat rendering. The system may also be extended

  9. Cost aware real time big data processing in Cloud Environments

    E-Print Network [OSTI]

    Buyya, Rajkumar

    Cost aware real time big data processing in Cloud Environments By Cristian Montero Under and volatility of Big-data application workloads, it is difficult to decide when and how to scale up and down Environments . . . . . . . . . . . . . . . . . . . 9 2.2 Big Data

  10. Living Document Proposal for a Statewide California Real Time Network

    E-Print Network [OSTI]

    Sandwell, David T.

    early warning systems for geological (earthquakes, tsunamis, volcanos, landslides) and atmospheric directly to the California Spatial Reference System (CSRS) and the National Spatial Reference System (NSRS in the Master Plan, specifically "real-time infrastructure systems1 ." In addition to providing a much needed

  11. University of Alberta REAL-TIME PROCESSING FOR

    E-Print Network [OSTI]

    Joseph, Dileepan

    University of Alberta REAL-TIME PROCESSING FOR LOGARITHMIC CMOS IMAGE SENSORS by Jing Li A thesis Engineering c Jing Li Spring 2012 Edmonton, Alberta Permission is hereby granted to the University of Alberta form, the University of Alberta will advise potential users of the thesis of these terms. The author

  12. ARCHITECTURE FOR A PORTABLE OPEN SOURCE REAL TIME KERNEL ENVIRONMENT

    E-Print Network [OSTI]

    Lipari, Giuseppe

    to the automotive industry. The set of tools comprises a schedulability analyzer, a kernel library and a kernel con platforms without sacri#28;cing performance. With our tools, the programmer only need to write of an Open Source Real Time Kernel for embedded automotive applications. Developing a kernel

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

    E-Print Network [OSTI]

    Center Empowering Minds to Engineer the Future Electric Energy System #12;#12;Real Time PMU, Western Area Power Administration Clifton Black, Southern Company David Schooley, Exelon the increasing amount of PMU data for operation, planning, protection, and control. This research proposes new

  14. Real-time Classification for The Palomar Transient Factory

    E-Print Network [OSTI]

    Real-time Classification for The Palomar Transient Factory Joseph Richards UC Berkeley Department;Transient Classification Project (TCP) J. Richards Classification for PTF 2 #12;Outline 1 Palomar Transient for PTF? J. Richards Classification for PTF 3 #12;Palomar Transient Factory (PTF) Fully-automated survey

  15. Real-time Modelling of Tsunami Data Applied Physics Laboratory

    E-Print Network [OSTI]

    Percival, Don

    Real-time Modelling of Tsunami Data Applied Physics Laboratory Department of Statistics University for Tsunami Research #12;Background - I · even before disasterous Sumatra tsunami in December 2004, de- structive potential of earthquake-generated tsunamis was well- known · due to rate at which a tsunami

  16. 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

  17. 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

  18. Using Real-Time Road Traffic Data to Evaluate Congestion

    E-Print Network [OSTI]

    Cambridge, University of

    Using Real-Time Road Traffic Data to Evaluate Congestion Jean Bacon, Andrei Iu. Bejan, Alastair R regression, spline interpolation. 1 Introduction Congestion on roads, especially in urban areas, has a large kilometres in 2008 [2]. #12;Congestion can be tackled either by increasing road network capacity

  19. Real-time graphic displays in Mars. [AVLIS process

    SciTech Connect (OSTI)

    Treadway, T.

    1985-12-01

    Real-time diagnostic data of the AVLIS process is displayed in the form of a two-dimensional plot on selected monitors in the Mars Control Room. Each Mars workstation contains a HP2622 terminal for computer interface to the experiment and a Raster Technologies graphic controller driving a Conrac high resolution color monitor for graphics output.

  20. Volumetric Meshes for RealTime Medical Simulations

    E-Print Network [OSTI]

    Teschner, Matthias

    Volumetric Meshes for Real­Time Medical Simulations Matthias Mueller and Matthias Teschner Computer present an approach to generating volumetric meshes from closed triangulated surface meshes. The approach adapt the accuracy of the correspondence of the boundary of the volumetric mesh with the given surface

  1. Understanding Crude Oil Prices

    E-Print Network [OSTI]

    Hamilton, James Douglas

    2008-01-01

    2004. “OPEC’s Optimal Crude Oil Price,” Energy Policy 32(2),percent change in real oil price. Figure 3. Price of crude023 Understanding Crude Oil Prices James D. Hamilton June

  2. Modeling Time Series of Real Systems using Genetic Programming

    E-Print Network [OSTI]

    Dilip P. Ahalpara; Jitendra C. Parikh

    2006-07-14

    Analytic models of two computer generated time series (Logistic map and Rossler system) and two real time series (ion saturation current in Aditya Tokamak plasma and NASDAQ composite index) are constructed using Genetic Programming (GP) framework. In each case, the optimal map that results from fitting part of the data set also provides a very good description of rest of the data. Predictions made using the map iteratively range from being very good to fair.

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

    E-Print Network [OSTI]

    Lai, Chien-An

    2012-10-19

    , B.S., National Taiwan University Chair of Advisory Committee: Dr. Riccardo Bettati Due to advances in capacity, speed, and economics, NAND-based ash memory technology is increasingly integrated into all types of computing systems, ranging from... enterprise servers to embedded devices. However, due to its unpredictable up- date behavior and time consuming garbage collection mechanism, NAND-based ash memory is di cult to integrate into hard-real-time embedded systems. In this thesis, I propose a...

  4. Real-Time Android RealTime DSP AB is a consultant firm, supplying expertise within the areas embedded systems and

    E-Print Network [OSTI]

    Svenningsson, Josef

    Real-Time Android RealTime DSP AB is a consultant firm, supplying expertise within the areas The Android platform is widely used for smartphones running all sorts of applications. Though most-time demands. Since Android is based on a Linux kernel, which is not made for real-time applications, you

  5. Prices

    U.S. Energy Information Administration (EIA) 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: AlternativeMonthly","10/2015"Monthly","10/2015" ,"Release7Cubicthroughthe PriceThousand CubicThousandCubic53.6 53.3 49.368.7

  6. Embedded Databases for Embedded Real-Time Systems: A Component-Based Approach1

    E-Print Network [OSTI]

    Embedded Databases for Embedded Real-Time Systems: A Component-Based Approach1 Aleksandra Tesanovi of embedded real-time systems has increased dramatically. At the same time, the amount of data that needs in embedded real-time systems. However, a database that can be used in an embedded real-time system must

  7. Real-time nonlinear optimization as a generalized equation.

    SciTech Connect (OSTI)

    Zavala, V. M.; Anitescu, M. (Mathematics and Computer Science)

    2010-11-11

    We establish results for the problem of tracking a time-dependent manifold arising in real-time optimization by casting this as a parametric generalized equation. We demonstrate that if points along a solution manifold are consistently strongly regular, it is possible to track the manifold approximately by solving a single linear complementarity problem (LCP) at each time step. We derive sufficient conditions guaranteeing that the tracking error remains bounded to second order with the size of the time step even if the LCP is solved only approximately. We use these results to derive a fast, augmented Lagrangian tracking algorithm and demonstrate the developments through a numerical case study.

  8. Real Time Analysis of Thermal Activation via Sphaleron Transitions

    E-Print Network [OSTI]

    D. Boyanovsky; C. A. de Carvalho

    1993-06-07

    We study the process of thermal activation mediated by sphaleron transitions by analyzing the real-time dynamics of the decay out of equilibrium in a $1+1$ dimensional field theory with a metastable state. The situation considered is that of a rapid supercooling in which the system is trapped in a metastable state at a temperature larger than the mass of the quanta, but smaller than the energy to create a critical droplet. The initial density matrix is evolved in time and the nucleation rate (probability current at the saddle point) is computed. The nucleation rate is {\\it time dependent}, vanishing at early times, reaching a maximum at a time $t \\approx 1/m$ with $m$ the mass of quanta in the metastable state, and decreasing at long times as a consequence of unitarity. An estimate for the average number of particles of ``true vacuum'' produced as a function of time during the nucleation process is obtained.

  9. Time Series Methods for ForecastingElectricityMarket Pricing Zoran Obradovic Kevin Tomsovic

    E-Print Network [OSTI]

    Obradovic, Zoran

    of traditional commodities, such as,oil or agricultural products. Clearly, assessing the effectivenessTime Series Methods for ForecastingElectricityMarket Pricing Zoran Obradovic Kevin Tomsovic PO Box

  10. A one-time excess inventory disposal decision under stochastic and price dependent demand 

    E-Print Network [OSTI]

    Zhu, Xiaoyan

    2002-01-01

    This thesis studies a one-time excess inventory disposal problem where the demand during the disposal period (DDDP) is stochastic and its distribution depends on the disposal price. More specifically, this thesis considers a periodic...

  11. Discrete-Time Scheduling under Real-Time Constraints Eduard Cerny

    E-Print Network [OSTI]

    Aboulhamid, El Mostapha

    into a discrete- time relative schedule. Such a schedule serves as the basis for implementing a synchronous state-machine controller. Keywords: Timing diagrams, relative scheduling, real-time constraints, synchronous state machines that is suitable for synchronous system implementations. The input specification is in the form of timing diagrams

  12. Systematic Security and Timeliness Tradeoffs in Real-Time Embedded Systems Kyoung-Don Kang

    E-Print Network [OSTI]

    Kang, Kyoung-Don

    security requirements in soft real-time applications such as battlefield monitoring and target track- ing

  13. Real-time measurement of radon activity and mixed radiation fields characterization with silicon pixel detector

    E-Print Network [OSTI]

    Severino, Clizia Tecla; Silari, Marco

    Real-time measurement of radon activity and mixed radiation fields characterization with silicon pixel detector

  14. Real time markerless motion tracking using linked kinematic chains

    DOE Patents [OSTI]

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

    2007-08-14

    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.

  15. Real-time multiplexed digital cavity-enhanced spectroscopy

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

    Boyson, Toby K.; Dagdigian, Paul J.; Pavey, Karl D.; Fitzgerald, Nicholas J.; Spence, Thomas G.; Moore, David S.; Harb, Charles C.

    2015-10-01

    Cavity-enhanced spectroscopy is a sensitive optical absorption technique but one where the practical applications have been limited to studying small wavelength ranges. In addition, this Letter shows that wideband operation can be achieved by combining techniques usually reserved for the communications community with that of cavity-enhanced spectroscopy, producing a multiplexed real-time cavity-enhanced spectrometer. We use multiple collinear laser sources operating asynchronously and simultaneously while being detected on a single photodetector. This is synonymous with radio frequency (RF) cellular systems in which signals are detected on a single antenna but decoded uniquely. Here, we demonstrate results with spectra of methyl salicylatemore »and show parts-per-billion per root hertz sensitivity measured in real-time.« less

  16. 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)

    2007-06-19

    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.

  17. 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)

    2011-11-15

    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.

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

    SciTech Connect (OSTI)

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

    2013-03-19

    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.

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

    E-Print Network [OSTI]

    Piccolo, M.; Shyr, S.

    1999-01-01

    cogeneration system that supplies both electricity and stearn to the site. The surplus electricity is exported to the National grid. The system consists of the following: ~ Gas Turbine and Heat Recovery Steam Generator ~ Four fired boilers ~ Four steam...-linear modelling and optimization. Data is supplied through Uniformance PHD, Honeywell Hi-Spec Solutions' real time database. The cogeneration system is controlled using Honeywell's IDC 3000 system. The Utility System at Repsol Cartagena refinery is a...

  20. Reliable Downlink Scheduling for Wireless Networks with Real-Time and Non-Real Time Clients 

    E-Print Network [OSTI]

    Jain, Abhishek

    2014-08-05

    In this thesis, we studied the problem of designing a down link scheduling policy to serve multiple types of clients from a base station in a time-varying wireless network. An ideal scheduling policy is fair among the clients, provides reliability...

  1. Imaging gene expression in real-time using aptamers

    SciTech Connect (OSTI)

    Shin, Il Chung

    2011-12-13

    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 (Förster 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.

  2. Diesel prices decrease for first time in four weeks

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry Natural GasNatural Gas Usage FormDieselDiesel prices decrease for

  3. Diesel prices decrease for first time in four weeks

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry Natural GasNatural Gas Usage FormDieselDiesel prices decrease

  4. Diesel prices decrease for first time in four weeks

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry Natural GasNatural Gas Usage FormDieselDiesel prices decreaseDiesel

  5. Diesel prices decrease for first time in four weeks

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry Natural GasNatural Gas Usage FormDieselDiesel prices

  6. Diesel prices decrease for first time in four weeks

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry Natural GasNatural Gas Usage FormDieselDiesel pricesU.S. Diesel

  7. Diesel prices decrease for first time in four weeks

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry Natural GasNatural Gas Usage FormDieselDiesel pricesU.S. DieselU.S.

  8. Diesel prices decrease for first time in four weeks

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry Natural GasNatural Gas Usage FormDieselDiesel pricesU.S.

  9. Diesel prices decrease for first time in four weeks

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry Natural GasNatural Gas Usage FormDieselDiesel pricesU.S.diesel

  10. Diesel prices decrease for first time in four weeks

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry Natural GasNatural Gas Usage FormDieselDiesel pricesU.S.dieseldiesel

  11. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 31, NO. 7, JULY 2013 1 Demand Response Management via Real-time

    E-Print Network [OSTI]

    Huang, Jianwei

    IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 31, NO. 7, JULY 2013 1 Demand Response through demand response management in smart grid systems. The proposed scheme solves a two. Index Terms--Real-time pricing, Demand response manage- ment, Payoff maximization, Profit maximization

  12. Towards a Real-time Transient Classification Engine

    SciTech Connect (OSTI)

    Nugent, Peter E; Bloom, Josh; Starr, Dan; Butler, Nat; Nugent, Peter; Rischard, M.; Eads, D.; Poznanski, Dovi

    2008-02-22

    Temporal sampling does more than add another axis to the vector of observables. Instead, under the recognition that how objects change (and move) in time speaks directly to the physics underlying astronomical phenomena, next-generation wide-field synoptic surveys are poised to revolutionize our understanding of just about anything that goes bump in the night (which is just about everything at some level). Still, even the most ambitious surveys will require targeted spectroscopic follow-up to fill in the physical details of newly discovered transients. We are now building a new system intended to ingest and classify transient phenomena in near real-time from high-throughput imaging data streams. Described herein, the Transient Classification Project at Berkeley will be making use of classification techniques operating on"features" extracted from time series and contextual (static) information. We also highlight the need for a community adoption of a standard representation of astronomical time series data (i.e.,"VOTimeseries").

  13. Developing Embedded/Real-Time and Cyber-Physical Systems: Functional Reactive Programming, RTL-based Formal Verification, Response Time

    E-Print Network [OSTI]

    Cheng, Albert M. K.

    , specification, modeling, scheduling, and formal verification of real- time, embedded, and cyber-physical systems-based Formal Verification, Response Time Analysis, and Power-Aware Scheduling Albert M. K. Cheng Real reactive programming, RTL (real-time logic)-based formal verification, response time analysis, and power

  14. Learning Curve: Analysis of an Agent Pricing Strategy Under Varying Conditions

    E-Print Network [OSTI]

    in employing these real-time agents is understanding the costs and benefits to different agent pricingLearning Curve: Analysis of an Agent Pricing Strategy Under Varying Conditions Joan Morris, Pattie@cs.brown.edu Abstract - By employing dynamic pricing, the act of changing prices over time within a marketplace, sellers

  15. REAL-TIME OPTIMIZATION AS A GENERALIZED EQUATION 1 ...

    E-Print Network [OSTI]

    2010-06-22

    while the data are the current states and incoming price and disturbance ... This will enable higher frequency solutions (as desired in most applications) and the.

  16. 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)

    2010-02-22

    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.

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

    DOE Patents [OSTI]

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

    1999-08-03

    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.

  18. 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)

    2010-07-13

    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.

  19. Continuous real-time measurement of aqueous cyanide

    DOE Patents [OSTI]

    Rosentreter, Jeffrey J.; Gering, Kevin L.

    2007-03-06

    This invention provides a method and system capable of the continuous, real-time measurement of low concentrations of aqueous free cyanide (CN) using an on-line, flow through system. The system is based on the selective reactivity of cyanide anions and the characteristically nonreactive nature of metallic gold films, wherein this selective reactivity is exploited as an indirect measurement for aqueous cyanide. In the present invention the dissolution of gold, due to the solubilization reaction with the analyte cyanide anion, is monitored using a piezoelectric microbalance contained within a flow cell.

  20. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners * Impacts onReal-Time Chemical Imaging of Bacterial Biofilm

  1. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) by Carbon-RichProton DeliveryRadioactiveRare |Real-Time Chemical Imaging

  2. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) by Carbon-RichProton DeliveryRadioactiveRare |Real-Time Chemical

  3. 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 constraints. In this problem, energy is harvested from the ambient environment and used to replenish a storage on whether their rate of energy consumption is (i) more than or (ii) no more than the storage unit

  4. A Real-time Framework for Model Predictive Control of Continuous-Time Nonlinear Systems

    E-Print Network [OSTI]

    Sontag, Eduardo

    for piecewise constant NMPC of continuous-time processes. Index Terms-- nonlinear model predictive control, real-time optimization, optimal control, piecewise constant control I. INTRODUCTION Model predictive control (MPC horizon, open-loop optimal control problem. The unprecedented industrial success of MPC ap- proaches based

  5. Words at the Right Time: Real-Time Dialogues with the WITAS Unmanned Aerial Vehicle

    E-Print Network [OSTI]

    Doherty, Patrick

    Words at the Right Time: Real-Time Dialogues with the WITAS Unmanned Aerial Vehicle Extended UAV (Unmanned Aerial Vehicle), in our case a helicopter. Its dialogue-system subprojects address Unmanned Aerial Vehicle Project 14,15] is an ambitious, long- term basic research project whose main

  6. 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

  7. Initial Studies Toward Real-Time Transmission Path Rating

    SciTech Connect (OSTI)

    Singh, Ruchi; Diao, Ruisheng; Cai, Niannian; Huang, Zhenyu; Tuck, Brian; Guo, Xinxin

    2012-07-26

    Demand continues to increase while transmission line construction is being constrained by multiple factors— economic, environmental, and political. Effective and efficient utilization of transmission lines is thus of great importance in an open access environment. Large blocks of power are transferred from areas with inexpensive generation to heavy load demand areas or areas with high generation costs. This results in some transmission paths being loaded closer to their path ratings, which limits further power transfer between areas. Traditionally, rating of important paths was determined off line by assuming the worst-case study scenario; once determined, it could be used for years. With increasing uncertainty arising from rapid growth of renewable energy and smart technologies, path rating studies are needed in near-real time to account for the latest system status and support a reliable and economic power grid. This paper adopts a simplified procedure based on standards of the North American Electric Reliability Corporation (NERC) to determine total transfer capability (TTC) or transfer limit for the purpose of demonstrating the benefits and necessity of real-time path rating. Initial studies are conducted to compute TTC of a two-area test system and a 39-bus test system. Results indicate that path rating can be significantly affected by loading conditions, generator schedules, system topology and other factors.

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

    SciTech Connect (OSTI)

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

    2011-01-01

    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.

  9. Development of Real-Time Coal Monitoring Instrument

    SciTech Connect (OSTI)

    Rajan Gurjar, Ph.D.

    2010-06-17

    Relying on coal for energy requires optimizing the extraction of heat content from various blends of coal fuel and reducing harmful constituents and byproducts. Having a real-time measurement instrument provides relevant information about toxic constituents released in the atmosphere from burning coal and optimizes the performance of a power plant. A few commercial instruments exist and have been in operation for more than a decade. However, most of these instruments are based on radioactive sources and are bulky, expensive and time-consuming. The proposed instrument is based on the Laser Induced Breakdown Spectroscopy (LIBS). The advantage of LIBS is that it is a standoff instrument, does not require sample preparation and provides precise information about sample constituents.

  10. Real-Time Bioluminescent Tracking of Cellular Population Dynamics

    SciTech Connect (OSTI)

    Close, Dan; Sayler, Gary Steven; Xu, Tingting; Ripp, Steven Anthony

    2014-01-01

    Cellular population dynamics are routinely monitored across many diverse fields for a variety of purposes. In general, these dynamics are assayed either through the direct counting of cellular aliquots followed by extrapolation to the total population size, or through the monitoring of signal intensity from any number of externally stimulated reporter proteins. While both viable methods, here we describe a novel technique that allows for the automated, non-destructive tracking of cellular population dynamics in real-time. This method, which relies on the detection of a continuous bioluminescent signal produced through expression of the bacterial luciferase gene cassette, provides a low cost, low time-intensive means for generating additional data compared to alternative methods.

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

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

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

  12. MODELING REAL-TIME HUMAN-AUTOMATION COLLABORATIVE SCHEDULING OF UNMANNED VEHICLES

    E-Print Network [OSTI]

    Cummings, Mary "Missy"

    MODELING REAL-TIME HUMAN-AUTOMATION COLLABORATIVE SCHEDULING OF UNMANNED VEHICLES by ANDREW S, Humans and Automation Laboratory Certified by;3 MODELING REAL-TIME HUMAN-AUTOMATION COLLABORATIVE SCHEDULING OF UNMANNED VEHICLES by Andrew S. Clare

  13. A Library of SIMULINK Blocks for Real-Time Control of HEV Traction John Chiasson1

    E-Print Network [OSTI]

    Tolbert, Leon M.

    of Automotive Engineers, Inc. ABSTRACT This paper describes the development of advanced control and modeling. REAL-TIME TEST BED A real-time computing platform has been developed as a test bed to efficiently

  14. The Design of a Synthesis Tool for Interrupt-based Real Time Embedded Software

    E-Print Network [OSTI]

    Hsiung, Pao-Ann

    to accomplish some dedicated set of periodic tasks within real time deadlines. Some examples include avionics Thermometer with Microcontroller (DTM) and a Real-time Stepping Motor Control (RSMC) to demonstrate

  15. A Real-Time Procedural Shading System for Programmable Graphics Hardware

    E-Print Network [OSTI]

    Stanford University

    A Real-Time Procedural Shading System for Programmable Graphics Hardware Kekoa Proudfoot£ Stanford University Abstract Real-time graphics hardware is becoming programmable, but this programmable hardware one computation frequency. Internally, our system virtualizes limited hardware resources to allow

  16. Real-time Process Monitoring and Temperature Mapping of the 3D...

    Office of Scientific and Technical Information (OSTI)

    Real-time Process Monitoring and Temperature Mapping of the 3D Polymer Printing Process Citation Details In-Document Search Title: Real-time Process Monitoring and Temperature...

  17. THE USE OF A FORMAL SIMULATOR TO VERIFY A SIMPLE REAL TIME CONTROL PROGRAM

    E-Print Network [OSTI]

    Boyer, Robert Stephen

    that a simple, real time control program keeps a vehicle on a straightline course in a variable crosswind

  18. Lynx: Authenticated Anonymous Real-Time Reporting of Electric Vehicle Information

    E-Print Network [OSTI]

    Nahrstedt, Klara

    computation overhead during real-time reporting, and our imple- mentation on Raspberry Pi 2 shows that report

  19. Embedded and Real-time Systems Classes in Traditional and Distance Education Format

    E-Print Network [OSTI]

    Thornton, Mitchell

    . In particular, we describe embedded and real-time systems classes that are based upon the ARM® and Arduino

  20. Real-time system verification techniques based on abstraction/deduction and model checking

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Real-time system verification techniques based on abstraction/deduction and model checking Eun in or- der to obtain a powerful and highly automatic verification environment for real-time systems. One-Young.Kang@loria.fr Abstract. Our research focuses on verification techniques for real-time systems based on predicate

  1. Tools for Real-Time UML: Formal Verification and Code Synthesis

    E-Print Network [OSTI]

    David, Alexandre

    and analysis of real-time systems. The model has a simple and clear semantics, and is powerful enough to describe the characteristic features of real-time systems, such as scheduling algorithms, timers, timeouts for modeling, analysis, and code synthesis of real-time systems. Figure 1 illustrates the current position

  2. Tools for Real-Time UML: Formal Veri cation and Code Synthesis

    E-Print Network [OSTI]

    David, Alexandre

    semantics, and is powerful enough to describe the characteristic features of real-time systems appropriate for high-level design and analysis of real-time systems. The model has a simple and clear is a uniform framework for modeling, analysis, and code synthesis of real-time systems. Figure 1 illustrates

  3. Topographically-Based Real-Time Traffic Anomaly Detection in a Metropolitan Highway System

    E-Print Network [OSTI]

    Grossman, Robert

    Topographically-Based Real-Time Traffic Anomaly Detection in a Metropolitan Highway System Rajmonda metropolitan area. Our Chicago Alert System (CAS) considers both the spatial and temporal aspects of the data of attack, the need for real-time traffic management is crucial. Real-time traffic management encompasses

  4. Conserving Energy in Real-Time Storage Systems with I/O Burstiness

    E-Print Network [OSTI]

    Qin, Xiao

    20 Conserving Energy in Real-Time Storage Systems with I/O Burstiness ADAM MANZANARES, XIAOJUN RUAN of Southern Mississippi Energy conservation has become a critical problem for real-time embedded storage, energy conservation for real-time embedded storage systems is still an open problem. In this arti- cle

  5. Real-time neural network earthquake profile predictor

    DOE Patents [OSTI]

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

    1996-01-01

    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.

  6. Smart preamplifier for real-time turbine meter diagnostics

    SciTech Connect (OSTI)

    Breter, J.C.

    1995-12-31

    A new, dual-purpose device for turbine meters, which functions as a traditional signal preamplifier and accomplishes real-time performance diagnostics, is now available. This smart preamplifier (patent pending) utilizes high speed microprocessor technology to continuously monitor and analyze the rotation of a turbine meter rotor. Continuous monitoring allows the device to detect rotational anomalies that can lead to erroneous measurements as they occur. The smart preamplifier works on liquid or gas turbine meters that use a variable reluctance pickup coil for signal generation. This paper will discuss the technology and capabilities of the smart preamplifier. To simplify this discussion, it is assumed that the signal generated will be via a non-rimmed rotor. Thus, the term ``blade`` is used throughout. However, all discussions relevant to signal generation are also true for a rimmed rotor using either buttons or slots for signal generation.

  7. RTDB: A memory resident real-time object database

    SciTech Connect (OSTI)

    Jerzy M. Nogiec; Eugene Desavouret

    2003-06-04

    RTDB is a fast, memory-resident object database with built-in support for distribution. It constitutes an attractive alternative for architecting real-time solutions with multiple, possibly distributed, processes or agents sharing data. RTDB offers both direct and navigational access to stored objects, with local and remote random access by object identifiers, and immediate direct access via object indices. The database supports transparent access to objects stored in multiple collaborating dispersed databases and includes a built-in cache mechanism that allows for keeping local copies of remote objects, with specifiable invalidation deadlines. Additional features of RTDB include a trigger mechanism on objects that allows for issuing events or activating handlers when objects are accessed or modified and a very fast, attribute based search/query mechanism. The overall architecture and application of RTDB in a control and monitoring system is presented.

  8. Method and apparatus for real time weld monitoring

    DOE Patents [OSTI]

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

    1997-01-01

    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.

  9. Real-time neural network earthquake profile predictor

    DOE Patents [OSTI]

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

    1996-02-06

    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.

  10. Real-Time Combined Heat and Power Operational Strategy Using a Hierarchical Optimization Algorithm

    SciTech Connect (OSTI)

    Yun, Kyung Tae; Cho, Heejin; Luck, Rogelio; Mago, Pedro J.

    2011-06-01

    Existing attempts to optimize the operation of Combined Heat and Power (CHP) systems for building applications have two major limitations: the electrical and thermal loads are obtained from historical weather profiles; and the CHP system models ignore transient responses by using constant equipment efficiencies. This paper considers the transient response of a building combined with a hierarchical CHP optimal control algorithm to obtain a real-time integrated system that uses the most recent weather and electric load information. This is accomplished by running concurrent simulations of two transient building models. The first transient building model uses current as well as forecast input information to obtain short term predictions of the thermal and electric building loads. The predictions are then used by an optimization algorithm, i.e., a hierarchical controller, that decides the amount of fuel and of electrical energy to be allocated at the current time step. In a simulation, the actual physical building is not available and, hence, to simulate a real-time environment, a second, building model with similar but not identical input loads are used to represent the actual building. A state-variable feedback loop is completed at the beginning of each time step by copying, i.e., measuring, the state variable from the actual building and restarting the predictive model using these ?measured? values as initial conditions. The simulation environment presented in this paper features nonlinear effects such as the dependence of the heat exchanger effectiveness on their operating conditions. The results indicate that the CHP engine operation dictated by the proposed hierarchical controller with uncertain weather conditions have the potential to yield significant savings when compared to conventional systems using current values of electricity and fuel prices.

  11. Optimal Time-of-Use Pricing For Residential Load Control

    E-Print Network [OSTI]

    Kumar, Sunil

    is demonstrated using a simulated case study. I. INTRODUCTION Demand-side management and electricity rate. San Diego, CA 92182-1309 Abstract-- Demand response (DR) can be defined as change in electric usage of electricity over time. Demand Response also refers to incentive payments designed to induce lower electricity

  12. Direct Real-Time Detection of Vapors from Explosive Compounds

    SciTech Connect (OSTI)

    Ewing, Robert G.; Clowers, Brian H.; Atkinson, David A.

    2013-10-03

    The real-time detection of vapors from low volatility explosives including PETN, tetryl, RDX and nitroglycerine along with various compositions containing these substances is demonstrated. This was accomplished with an atmospheric flow tube (AFT) using a non-radioactive ionization source and coupled to a mass spectrometer. Direct vapor detection was demonstrated in less than 5 seconds at ambient temperature without sample pre-concentration. The several seconds of residence time of analytes in the AFT provides a significant opportunity for reactant ions to interact with analyte vapors to achieve ionization. This extended reaction time, combined with the selective ionization using the nitrate reactant ions (NO3- and NO3-•HNO3), enables highly sensitive explosives detection. Observed signals from diluted explosive vapors indicate detection limits below 10 ppqv using selected ion monitoring (SIM) of the explosive-nitrate adduct at m/z 349, 378, 284 and 289 for tetryl, PETN, RDX and NG respectively. Also provided is a demonstration of the vapor detection from 10 different energetic formulations, including double base propellants, plastic explosives and commercial blasting explosives using SIM for the NG, PETN and RDX product ions.

  13. Housing Price Dynamics in Time and Space: Predictability, Liquidity and Investor Returns

    E-Print Network [OSTI]

    Hwang, Min; Quigley, John M.

    2010-01-01

    period. We model directly the price discovery process formodel of price diffusion, and we incorporate a more general and more appropriate structure of the price discovery process

  14. Housing Price Dynamics in Time and Space: Predictability, Liquidity and Investor Returns

    E-Print Network [OSTI]

    Hwang, Min; Quigley, John M.

    2010-01-01

    C. A. (1996). OFHEO house price indexes: HPI technicalsense of elevated housing prices. Federal Reserve Bank ofJ. E. (1991). Measuring prices in retransaction housing

  15. On the Solution of Complementarity Problems Arising in American Options Pricing

    E-Print Network [OSTI]

    Nocedal, Jorge

    throughout the trading day, the options prices change as well. Re-pricing a large options book in real timeOn the Solution of Complementarity Problems Arising in American Options Pricing Liming Feng Vadim, as well as in more general stochastic models in finance, the price of an American option solves

  16. Optimal Battery Configuration in a Residential Home with Time-of-Use Pricing

    E-Print Network [OSTI]

    Simunic, Tajana

    Optimal Battery Configuration in a Residential Home with Time-of-Use Pricing Baris Aksanli, USA {baksanli, tajana}@ucsd.edu Abstract--Residential energy consumption shows significant diurnal. INTRODUCTION AND RELATED WORK Residential energy consumption constitutes 38% of the total energy consumption

  17. Quasi real time in vivo dosimetry for VMAT

    SciTech Connect (OSTI)

    Fidanzio, A.; Azario, L.; U.O.C di Fisica Sanitaria, Università Cattolica del Sacro Cuore, Rome 00168; Istituto Nazionale di Fisica Nucleare , Sezione di Roma Tre, Rome 00146 ; Porcelli, A.; Greco, F.; Istituto Nazionale di Fisica Nucleare , Sezione di Roma Tre, Rome 00146 ; Cilla, S.; Grusio, M.; Balducci, M.; Valentini, V.; Piermattei, A.

    2014-06-15

    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.

  18. Real-Time SCADA Cyber Protection Using Compression Techniques

    SciTech Connect (OSTI)

    Lyle G. Roybal; Gordon H Rueff

    2013-11-01

    The Department of Energy’s Office of Electricity Delivery and Energy Reliability (DOE-OE) has a critical mission to secure the energy infrastructure from cyber attack. Through DOE-OE’s 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.

  19. TIMING-ACCURATE STORAGE EMULATION: EVALUATING HYPOTHETICAL STORAGE COMPONENTS IN REAL COMPUTER SYSTEMS

    E-Print Network [OSTI]

    TIMING-ACCURATE STORAGE EMULATION: EVALUATING HYPOTHETICAL STORAGE COMPONENTS IN REAL COMPUTER;ABSTRACT Timing-accurate storage emulation offers a unique performance evaluation capability to experiment with not-yet-existing storage components in the context of real systems executing real

  20. Analytical, Wavelet and Frequency based Mathematical Models for Real-Time Rendering

    E-Print Network [OSTI]

    Columbia University

    Analytical, Wavelet and Frequency based Mathematical Models for Real-Time Rendering Bo Sun School of Arts and Sciences COLUMBIA UNIVERSITY 2008 #12;c 2008 Bo Sun All Rights Reserved #12;ABSTRACT Analytical, Wavelet and Frequency based Mathematical Models for Real-Time Rendering Bo Sun Real

  1. Real-Time Synchronization on Multiprocessors: To Block or Not to Block, to Suspend or Spin?

    E-Print Network [OSTI]

    Anderson, James

    of several multiprocessor real-time synchronization options; this study is directed at previously- proposed knowledge, the real-time synchronization options considered herein have never been empirically compared before on an actual testbed. Before continuing, let us examine the options available for real

  2. Generalized Performance Management of Multi-Class Real-Time Imprecise Data Services

    E-Print Network [OSTI]

    Son, Sang H.

    for performance guarantees. In this paper we propose an approach for managing the quality of service of realGeneralized Performance Management of Multi-Class Real-Time Imprecise Data Services Mehdi Amirijoo@isy.liu.se Abstract The intricacy of real-time data service management in- creases mainly due to the emergence

  3. The Case For Prediction-based Best-effort Real-time Systems

    E-Print Network [OSTI]

    The Case For Prediction-based Best-effort Real-time Systems Peter A. Dinda Bruce Lowekamp Loukas and Distributed Real- Time Systems (WPDRTS '99) Abstract We propose a prediction-based best-effort real significant examples, an earthquake visualization tool and a GIS map display tool, and show how they could

  4. Automatic Performance Visualization of Distributed Real-time systems

    E-Print Network [OSTI]

    Harmon, Trevor; Klefstad, Raymond

    2006-01-01

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

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

    E-Print Network [OSTI]

    Fuerst, Franz; McAllister, Patrick; Sivitanides, Petros

    2015-01-01

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

  6. QoS Measurement of Internet Real-Time Multimedia Services Wenyu Jiang, Henning Schulzrinne

    E-Print Network [OSTI]

    QoS Measurement of Internet Real-Time Multimedia Services Wenyu Jiang, Henning Schulzrinne fwenyu,schulzrinneg@cs.columbia.edu Technical Report CUCS-015-99 Department of Computer Science Columbia University December 1999 Abstract Real

  7. The SPLENDORS Real Time Portfolio Management System (Extended Abstract)

    E-Print Network [OSTI]

    . Patel Columbia University IBM Department of Computer Science 42FA/235 500 West 120th Street Neighborhood, if the analysis of the market conditions is performed using an outdated price, and a decision is made using Profit. SPLENDORS provides a packaged library of common components as well as facilities

  8. Real-Time Flavor Tagging Algorithms in ATLAS

    E-Print Network [OSTI]

    Hetherly, Jeffrey Wayne; The ATLAS collaboration; Zivkovic, Lidija

    2015-01-01

    In high-energy physics experiments, online selection is crucial to select interesting collisions from the large data volume. ATLAS b-jet triggers are designed to identify heavy-flavour content in real-time and provide the only option to efficiently record events with fully hadronic final states containing b-jets. In doing so, two different, but related, challenges are faced. The physics goal is to optimise as far as possible the rejection of light jets, while retaining a high efficiency on selecting b-jets and maintaining affordable trigger rates without raising jet energy thresholds. This results in a challenging computing task, as tracks and their corresponding vertices must be reconstructed and analysed for each jet above the desired threshold, regardless of the increasingly adverse pile-up conditions. We present an overview of the ATLAS strategy for online b-jet selection for the LHC Run 2, including the use of novel methods and sophisticated algorithms designed to face the above mentioned challenges. A f...

  9. Real-time flavour tagging selection in ATLAS

    E-Print Network [OSTI]

    Bertella, Claudia; The ATLAS collaboration

    2015-01-01

    In high-energy physics experiments, online selection is crucial to identify the few interesting collisions from the large data volume processed. In the overall ATLAS trigger strategy, b-jet triggers are designed to identify heavy-flavor content in real-time and, in particular, provide the only option to efficiently record events with fully hadronic final states containing b-jets. In doing so, two different, but related, challenges are faced. The physics goal is to optimise as far as possible the rejection of light jets from QCD processes, while retaining a high efficiency on selecting jets from beauty, while maintaining affordable trigger rates without raising jet energy thresholds. This maps into a challenging computing task, as charged tracks and their corresponding vertexes must be reconstructed and analysed for each jet above the desired threshold, regardless of the increasingly harsh pile-up conditions. The performance of b-jet triggers during the LHC Run 1 data-taking campaigns is presented, together wi...

  10. Cybersecurity through Real-Time Distributed Control Systems

    SciTech Connect (OSTI)

    Kisner, Roger A; Manges, Wayne W; MacIntyre, Lawrence Paul; Nutaro, James J; Munro Jr, John K; Ewing, Paul D; Howlader, Mostofa; Kuruganti, Phani Teja; Wallace, Richard M; Olama, Mohammed M

    2010-04-01

    Critical infrastructure sites and facilities are becoming increasingly dependent on interconnected physical and cyber-based real-time distributed control systems (RTDCSs). A mounting cybersecurity threat results from the nature of these ubiquitous and sometimes unrestrained communications interconnections. Much work is under way in numerous organizations to characterize the cyber threat, determine means to minimize risk, and develop mitigation strategies to address potential consequences. While it seems natural that a simple application of cyber-protection methods derived from corporate business information technology (IT) domain would lead to an acceptable solution, the reality is that the characteristics of RTDCSs make many of those methods inadequate and unsatisfactory or even harmful. A solution lies in developing a defense-in-depth approach that ranges from protection at communications interconnect levels ultimately to the control system s functional characteristics that are designed to maintain control in the face of malicious intrusion. This paper summarizes the nature of RTDCSs from a cybersecurity perspec tive and discusses issues, vulnerabilities, candidate mitigation approaches, and metrics.

  11. Real time detection and correction of distribution feeder operational problems

    SciTech Connect (OSTI)

    Subramanian, A.K.; Huang, J.C.

    1995-12-31

    The paper presents a new technique that detects and corrects distribution operational problems using closed loop control of substation transformers, capacitors and reactors by an online computer. This allows the distribution system to be operated close to its capacity without sacrificing the quality of power supply. Such operations help defer the additional cost of installing new substations. The technique integrates the Distribution Feeder Analysis (DFA) and the Distribution Substation Control (DSC) functions to achieve this. The DFA function provides the topology and power flow results for the feeders using the substation real time measurements. It does not require feeder section measurements. The realtime feeder results are used in detecting any currently existing feeder operational problems such as feeder section voltages and currents outside their limits. The detected feeder problems are transformed into substation distribution bus objectives and then corrected by the DSC function using controls available at the substation. The DSC function has been performing successfully for several years at Potomac Electric Power Company (PEPCO) in Washington, D.C. It uses a closed loop control scheme that controls the substation transformer taps and shunt capacitor and reactor breakers and optimizes the substation operation. By combining the DFA and DSC functions into a single function and with proper transformation of feeder problems into substation objectives, a new closed loop control scheme for the substation controls is achieved. This scheme corrects the detected feeder problems and optimizes the substation operation. This technique is implemented and tested using the actual substation and feeder models of PEPCO.

  12. Real-time flavour tagging selection in ATLAS

    E-Print Network [OSTI]

    Bogavac, Danijela; The ATLAS collaboration

    2015-01-01

    In high-energy physics experiments, online selection is crucial to identify the few interesting collisions from the large data volume processed. In the overall ATLAS trigger strategy, b-jet triggers are designed to identify heavy-flavour content in real-time and, in particular, provide the only option to efficiently record events with fully hadronic final states containing b-jets. In doing so, two different, but related, challenges are faced. The physics goal is to optimise as far as possible the rejection of light jets from multijet processes, while retaining a high efficiency on selecting jets from beauty, and maintaining affordable trigger rates without raising jet energy thresholds. This maps into a challenging computing task, as charged tracks and their corresponding vertexes must be reconstructed and analysed for each jet above the desired threshold, regardless of the increasingly harsh pile-up conditions. The performance of b-jet triggers during the LHC Run 1 data-taking campaigns is presented, togethe...

  13. Real-time multi-mode neutron multiplicity counter

    DOE Patents [OSTI]

    Rowland, Mark S; Alvarez, Raymond A

    2013-02-26

    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.

  14. Real-time algorithm for robust coincidence search

    SciTech Connect (OSTI)

    Petrovic, T.; Vencelj, M.; Lipoglavsek, M.; Gajevic, J.; Pelicon, P.

    2012-10-20

    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.

  15. 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

  16. 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

  17. 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; Gilbert, Bob; Lake, Larry W.; Weiss, Chester Joseph; Lorenz, John Clay; Elbring, Gregory Jay; Wheeler, Mary Fanett; Thomas, Sunil G.; Rightley, Michael J.; Rodriguez, Adolfo; Klie, Hector; Banchs, Rafael; Nunez, Emilio J.; Jablonowski, Chris

    2006-11-01

    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.

  18. Real-time discrimination of spectra by time-domain adaptive filtering in a Fourier transform interferometer

    E-Print Network [OSTI]

    Miller, David A. B.

    Real-time discrimination of spectra by time-domain adaptive filtering in a Fourier transform discrimination system with minimal data extraction and processing, insensitive to scan nonlinearities. We demonstrate real-time discrimination of monochromatic sources 30 nm apart, employing a spectrometer

  19. Reducing Timing Errors of Polling Mechanism Using Event Timpstamps for Safety-Critical Real-Time Control Systems

    E-Print Network [OSTI]

    and responsiveness. A real-time control system only with polling mechanims can be designed to execute a set of tasks

  20. Real-Time Active Cosmic Neutron Background Reduction Methods

    SciTech Connect (OSTI)

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

    2013-09-01

    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 Laboratory–Andrews (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 veto—field 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.

  1. Open Automated Demand Response Dynamic Pricing Technologies and Demonstration

    SciTech Connect (OSTI)

    Ghatikar, Girish; Mathieu, Johanna L.; Piette, Mary Ann; Koch, Ed; Hennage, Dan

    2010-08-02

    This study examines the use of OpenADR communications specification, related data models, technologies, and strategies to send dynamic prices (e.g., real time prices and peak prices) and Time of Use (TOU) rates to commercial and industrial electricity customers. OpenADR v1.0 is a Web services-based flexible, open information model that has been used in California utilities' commercial automated demand response programs since 2007. We find that data models can be used to send real time prices. These same data models can also be used to support peak pricing and TOU rates. We present a data model that can accommodate all three types of rates. For demonstration purposes, the data models were generated from California Independent System Operator's real-time wholesale market prices, and a California utility's dynamic prices and TOU rates. Customers can respond to dynamic prices by either using the actual prices, or prices can be mapped into"operation modes," which can act as inputs to control systems. We present several different methods for mapping actual prices. Some of these methods were implemented in demonstration projects. The study results demonstrate show that OpenADR allows interoperability with existing/future systems/technologies and can be used within related dynamic pricing activities within Smart Grid.

  2. 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 time equilibrium reconstruction code EQUINOX, which solves the Grad Shafranov equation, has been equilibrium. In order to meet the real-time requirements, a new version of the EQUINOX [1] code has been

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

    E-Print Network [OSTI]

    Wierman, Adam

    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

  4. RTRD: Real-Time and Reliable Data Delivery in Ad Hoc Networks

    E-Print Network [OSTI]

    Ravindran, Binoy

    -time task. A real-time task executes on an individual node, with a given termination time tT erm. As shown and has some data which requires to be delivered to another node before tT erm. The time for real-time data delivery is the task's slack time ST, ST = tT erm - tF inish. Before task execution starts, ET

  5. 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

  6. Real-Time Systems Development with SDL and Next Generation Validation Tools

    E-Print Network [OSTI]

    Sinnott, R.O.

    Sinnott,R.O. Proceedings of Real Time and Embedded Systems Workshop, 3-6 December 2001, London, England. IEEE Computer Society Press

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

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

    Pre and Post Diesel Particulate Filters for LIght-Duty Diesel Vehicles Real-Time Particulate Mass Measurements Pre and Post Diesel Particulate Filters for LIght-Duty...

  8. Organizing the Extremely Large LSST Database forReal-Time Astronomical...

    Office of Scientific and Technical Information (OSTI)

    of the LSST Association Pipeline and the database organization strategies we are planning to use to meet the real-time requirements, including data partitioning,...

  9. Real-time sub-Ångstrom...

    Office of Scientific and Technical Information (OSTI)

    Real-time sub-ngstrom imaging of reversible and irreversible conformations in rhodium catalysts and graphene Kisielowski, Christian; Wang,...

  10. Real-time sub- Å ngstrom imaging of reversible and irreversible...

    Office of Scientific and Technical Information (OSTI)

    ngstrom imaging of reversible and irreversible conformations in rhodium catalysts and graphene Title: Real-time sub- ngstrom imaging of reversible and irreversible conformations...

  11. On Some General Physical Aspects of the Real Physical Space and Time

    E-Print Network [OSTI]

    A. M. Gevorkian; R. A. Gevorkian

    2001-01-24

    The paper discusses some aspects of real physical space and time: structure of electrodynamics; structure of gravitational-inert theory in the real world; formation of the real matter; Mach's principle and the radiational cosmic mass; spread and transmission of information in the space of the real world; fundamental and main physical constants, protostar or 3+1-dimensional matter; and some philosophical and general physical approaches to solutions of physical problems.

  12. Beyond the Price Effect in Time-of-Use Programs: Results from a Municipal Utility Pilot, 2007-2008

    SciTech Connect (OSTI)

    Lutzenhiser, Susan; Peters, Jane; Moezzi, Mithra; Woods, James

    2009-08-12

    This paper discusses results of a two-year collaborative research project between the authors and the Demand Response Research Center focused on behavioral response to a voluntary time-of-use pilot rate offered by the Sacramento Municipal Utilities District (SMUD) under the PowerChoice label. The project had two purposes: one was to assess the potential for increasing demand response through the introduction of enhanced information and real-time consumption feedback; the second was to better understand behavioral response to a TOU rate. Three successive waves of telephone surveys collected details about reasons for participation, actions taken, capacities and constraints to altering behavior, and a range of salient conditions, such as demographics and dwelling characteristics. Pre- and post-program interval meter data for participants and a comparison sample of households were also collected and analyzed to consider initial and season-change price effects of the rate and the effect of supplemental information treatments on response. Over half of surveyed participating households reported that they had made a great deal of effort to adjust their electricity consumption to the rate. Despite this, load data analysis revealed only minimal price effects; and, though households subjected to information treatments seemed to have learned from these treatments, load data analysis again detected only minimal effects on load. Given the currently high hopes for behavioral intervention and residential TOU rates, these unexpected results require explanation. We suggest a number of possibilities and discuss some implications for TOU programs, and for understanding demand response behavior and approaches to experiments with TOU rates.

  13. PREPRINT ACCEPTED BY IEEE TRANSACTIONS ON CYBERNETICS, OCTOBER 2013 1 Tensor Body: Real-time Reconstruction of the

    E-Print Network [OSTI]

    Wolberg, George

    --Real-time 3D reconstruction of the human body has many applications in anthropometry, telecommunications

  14. In8 265 22 of RTAS'97: The 1997 IEEE RealTime Technologyandology 32049 Symposium, Montreal, Canada, June 1997.

    E-Print Network [OSTI]

    introduced ACCORD, an Admission Control and Capacity Over­ load management Real­time Database framework

  15. Technical Report 2009-003 A Testing Theory for Real-Time Systems

    E-Print Network [OSTI]

    Technical Report 2009-003 A Testing Theory for Real-Time Systems Stefan D. Bruda and Chun Dai|cdai}@cs.ubishops.ca 30 October 2009 Abstract We develop a testing theory for real-time systems. We keep the usual notion or failure of infinite runs, using a formalism similar to the acceptance in B¨uchi automata. We present two

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

    SciTech Connect (OSTI)

    Erickson, Keith G

    2014-04-01

    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.

  17. Real-time Control of a Tokamak Plasma Using Neural Networks

    E-Print Network [OSTI]

    Bishop, Christopher M.

    Real-time Control of a Tokamak Plasma Using Neural Networks Christopher M. Bishop , Paul S. Haynes of neural networks for real-time control of the high temperature plasma in a tokamak fusion experiment. The tokamak is currently the principal experimental device for research into the magnetic confinement approach

  18. Car-Rec: A Real Time Car Recognition System Daniel Marcus Jang and Matthew Turk

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Car-Rec: A Real Time Car Recognition System Daniel Marcus Jang and Matthew Turk University. The resulting system is applied to the domain of car recognition and achieves accurate (> 90%) and real-time performance when searching databases containing thou- sands of images. 1. Introduction Car recognition

  19. 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, Jian-Jia Chen, Zhenjun Shi, and Lothar Thiele Abstract Thermal constraints have limited

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

    E-Print Network [OSTI]

    Kazhdan, Michael

    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

    1. A Real-Time Head Nod and Shake Detector Ashish Kapoor

      E-Print Network [OSTI]

      A Real-Time Head Nod and Shake Detector Ashish Kapoor Affective Computing, MIT Media Lab 20 Ames Media Lab 20 Ames Street, Cambridge, MA 02139 +1-617-253-0369 picard@media.mit.edu ABSTRACT Head nods conversational functions. We describe a vision-based system that detects head nods and head shakes in real time

    2. Dynamic On-Demand Updating of Data in Real-Time Database Systems

      E-Print Network [OSTI]

      . This calls for data-centric ap- proaches when designing embedded systems, where data and its meta data freshness in soft real-time embedded systems and the target application is vehicular systems, vehicular systems 1. INTRODUCTION Real-time and embedded software increases in complexity due to the larger

    3. FPGA-Based Fuzzy Inference System for Real-time Embedded Applications

      E-Print Network [OSTI]

      FPGA-Based Fuzzy Inference System for Real-time Embedded Applications Dr. Kasim M. Al:- The traditional way of implementing algorithms in software limits the performance of real-time systems, since the data is processed serially. The new generation of FPGAs with embedded processors are attracting

    4. LOAD PROFILING IN DISTRIBUTED REAL-TIME SYSTEMS \\One Size Doesn't Fit All"

      E-Print Network [OSTI]

      pro ling, the system attempts to distribute the load amongst its nodes so as to maximize the chances of nding a node that would satisfy the computational needs of incoming real-time tasks. To that end, we on a solid, analytical foundation for real-time resource management. Examples include the Ada RTSIA

    5. A real time neural energy management strategy for a hybrid pneumatic engine

      E-Print Network [OSTI]

      Paris-Sud XI, Université de

      A real time neural energy management strategy for a hybrid pneumatic engine Guillaume Colin G.bloch@esstin.uhp-nancy.fr} Abstract: Various energy management strategies for a hybrid pneumatic engine are reviewed and a real time Recognition. Keywords: energy management strategy, fuel saving, hybrid vehicle, hybrid pneumatic engine

    6. A Real-Time Reliability Model for Ontology-Based Dynamic Web Service Composition

      E-Print Network [OSTI]

      Xu, Haiping

      153 A Real-Time Reliability Model for Ontology-Based Dynamic Web Service Composition Harmeet Chawla--Ontology-based web service composition allows for integration of available web services in real-time to meet desired objectives. In order to evaluate the quality of composite web services at runtime, there is a pressing need

    7. Real time control of gasifiers to increase tolerance to biomass variety and reduce emissions

      E-Print Network [OSTI]

      Real time control of gasifiers to increase tolerance to biomass variety and reduce emissions to increase tolerance to biomass variety and reduce emissions Ian A. Watson Systems, Power and Energy Research.watson@glasgow.ac.uk #12;Real time control of gasifiers to increase tolerance to biomass variety and reduce emissions

    8. Real Time Dynamic Wind Calculation for a Pressure Driven Wind System Criss Martin

      E-Print Network [OSTI]

      Parberry, Ian

      Real Time Dynamic Wind Calculation for a Pressure Driven Wind System Criss Martin Dept. of Computer University of North Texas Abstract We describe real time dynamic wind calculation for a pressure driven wind fraction of the CPU's processing power over and above what is required for static wind. Experiments were

    9. Distortion-transmission trade-off in real-time transmission of Gauss-Markov sources

      E-Print Network [OSTI]

      Mahajan, Aditya

      Distortion-transmission trade-off in real-time transmission of Gauss-Markov sources Jhelum.mahajan@mcgill.ca Abstract--The problem of optimal real-time transmission of a Gauss-Markov source under constraints on the expected number of transmissions is considered. This setup is motivated by applica- tions where

    10. On the Problem of Allocating Multicore Virtual Resources to Real-Time Task Pipelines

      E-Print Network [OSTI]

      Lipari, Giuseppe

      1 On the Problem of Allocating Multicore Virtual Resources to Real-Time Task Pipelines Giuseppe--Real-time applications that process streams of data can be modelled by a pipeline of tasks, to be executed on a multi-processor system. The pipeline is periodically activated, and each instance must be completed before an end

    11. Predictive Thermal Control for Real-Time Video Decoding Mehmet H. Suzer

      E-Print Network [OSTI]

      Kang, Kyoung-Don

      Predictive Thermal Control for Real-Time Video Decoding Mehmet H. Suzer Harran University msuzer multime- dia data in real-time with the highest possible QoS, while avoiding potential thermal problems for video decoding. Based on the model, we develop a predictive method that avoids deadline misses due

    12. A real-time implementation of G.726 with tree coding 

      E-Print Network [OSTI]

      Kokes, Mark Gavin

      1997-01-01

      ) platform. A non-real-time version also exists for the Windows 95 operating system. The real-time G.726 implementation is compared to existing speech coders on the basis of output speech quality. These comparisons are made with the notion that all competing...

    13. TOWARDS REAL-TIME METADATA FOR SENSOR-BASED NETWORKS AND GEOGRAPHIC DATABASES

      E-Print Network [OSTI]

      Servigne, Sylvie

      TOWARDS REAL-TIME METADATA FOR SENSOR-BASED NETWORKS AND GEOGRAPHIC DATABASES C. Gutiérrez, S: Metadata, Sensor database, SpatioTemporal, Data Quality, GIS ABSTRACT: Nowadays, the geographic metadata of spatiotemporal data resulting from these sensors requires a definition of real- time metadata, especially

    14. 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

    15. A Study of Concurrency Control in Real-Time, Active Database Systems

      E-Print Network [OSTI]

      Son, Sang H.

      A Study of Concurrency Control in Real-Time, Active Database Systems Anindya Datta, Member, IEEE control, automated financial trading, process control and military command, and control systems. In spiteÐReal-time database systems, active database systems, concurrency control, performance evaluation. æ 1 INTRODUCTION

    16. Section 1526 Real-time, Non-linear, Dynamic Simulation in Teaching Structures

      E-Print Network [OSTI]

      Martini, Kirk

      Section 1526 Real-time, Non-linear, Dynamic Simulation in Teaching Structures: Elementary simulation in topics ranging from introductory statics to advanced steel design and earthquake engineering, and plastic collapse mechanisms. The program performs computations in real time, so that models respond

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

      E-Print Network [OSTI]

      Endres. William J.

      Real-time observation of lithium fibers growth inside a nanoscale lithium-ion battery Hessam to observe the real-time nucleation and growth of the lithium fibers inside a nanoscale Li-ion battery. Our.1063/1.3643035] Lithium-ion batteries are of great interest due to their high energy density, however, various safety

    18. Enhancing Security of Real-Time Applications on Grids through Dynamic Scheduling

      E-Print Network [OSTI]

      Feitelson, Dror

      Enhancing Security of Real-Time Applications on Grids through Dynamic Scheduling Tao Xie Xiao Qin on Grids require security protections to completely fulfill their security-critical needs. Unfortunately to seamlessly integrate security into real-time scheduling for applications running on Grids. In this paper we

    19. A Wireless Internet-Based Observatory: The Real-time Coastal Observation Network

      E-Print Network [OSTI]

      A Wireless Internet-Based Observatory: The Real-time Coastal Observation Network (ReCON) S. A community and educational institutions through the internet. A real-time database management system provides to the success of regional coastal ocean observing systems. The pervasiveness of wireless internet technology

    20. Requirements Analysis of Real-Time Control Systems using PVS Bruno Dutertre Victoria Stavridou

      E-Print Network [OSTI]

      Dutertre, Bruno

      Requirements Analysis of Real-Time Control Systems using PVS Bruno Dutertre Victoria Stavridou and theorem proving in requirement analysis of real- time control systems. A major part of this work involved an experiment applying the PVS theorem prover to the analysis of an avionics control system. The case study

    1. P-132 / A. Murauski P-132: Real-Time Simulation Software

      E-Print Network [OSTI]

      P-132 / A. Murauski P-132: Real-Time Simulation Software for Electro-Optical Calculation of LC is proposed. We developed a real-time simulation software based on fast algorithms for solving differential immediately after changing any parameters of liquid crystal or cell configuration. The software is useful

    2. An Infrastructure for Hardware-Software Co-design of Embedded Real-Time Java Applications

      E-Print Network [OSTI]

      Wagner, Flávio Rech

      An Infrastructure for Hardware-Software Co-design of Embedded Real-Time Java Applications Elias of Kansas, USA dandrews@ittc.ku.edu Abstract The partitioning of applications into hardware and software in hardware in the context of the Real Time Specification for Java (RTSJ) standard. There is a Java class

    3. Case Study on Real-Time Visualization of Virtual Tubingen on Commodity PC Hardware

      E-Print Network [OSTI]

      Case Study on Real-Time Visualization of Virtual T¨ubingen on Commodity PC Hardware M. Meißner£ J amount of textures -- is one of the key problems. Until very recently, graphics hardware for commodity accomplish real-time frame up- dates on commodity PC Hardware. 1.1 Related Work Culling invisible objects

    4. Implementing the Palomar Transient Factory Real-Time Detection Pipeline in GLADE: Results and Observations

      E-Print Network [OSTI]

      Rusu, Florin

      Implementing the Palomar Transient Factory Real-Time Detection Pipeline in GLADE: Results, USA Abstract. Palomar Transient Factory is a comprehensive detection system for the identification-query processing, real-time classification 1 Introduction The Palomar Transient Factory (PTF) project [1, 2] aims

    5. REAL-TIME PEDESTRIAN DETECTION USING EIGENFLOW Dhiraj Goel, Tsuhan Chen

      E-Print Network [OSTI]

      Chen, Tsuhan

      REAL-TIME PEDESTRIAN DETECTION USING EIGENFLOW Dhiraj Goel, Tsuhan Chen Carnegie Mellon University recent attempts to use motion for pedestrian detection, this system performs this task in real- time pedestrians. Index Terms-- Optical Flow, PCA, AdaBoost 1. INTRODUCTION AND RELATED WORK Pedestrian detection

    6. 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

    7. A Simulation Tool for Real-time Systems using Environmental Energy Harvesting Maryline CHETTO

      E-Print Network [OSTI]

      Paris-Sud XI, Université de

      A Simulation Tool for Real-time Systems using Environmental Energy Harvesting Maryline CHETTO, we present a simulation tool for real-time systems using environmental energy harvesting. Energy. The simulator enables to construct an optimal schedule for any task set, battery capacity and energy source

    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. MODELING AND VERIFICATION OF REAL-TIME AND CYBER-PHYSICAL SYSTEMS

      E-Print Network [OSTI]

      Gupta, Gopal

      MODELING AND VERIFICATION OF REAL-TIME AND CYBER-PHYSICAL SYSTEMS by Neda Saeedloei APPROVED Copyright 2011 Neda Saeedloei All Rights Reserved #12;To my mother. #12;MODELING AND VERIFICATION OF REAL-TIME AND CYBER-PHYSICAL SYSTEMS by NEDA SAEEDLOEI, B.S., M.S. DISSERTATION Presented to the Faculty

    10. Real-time Trajectory Design for Unmanned Aerial Vehicles using Receding Horizon Control

      E-Print Network [OSTI]

      Real-time Trajectory Design for Unmanned Aerial Vehicles using Receding Horizon Control by Yoshiaki Students #12;2 #12;Real-time Trajectory Design for Unmanned Aerial Vehicles using Receding Horizon Control This thesis investigates the coordination and control of fleets of unmanned aerial vehicles (UAVs). Future

    11. A REAL-TIME SPIKE-DOMAIN SENSORY INFORMATION PROCESSING SYSTEM Udayan Mallik1

      E-Print Network [OSTI]

      Cauwenberghs, Gert

      on the implementation of an autonomous, real-time, combined retinal/cortical system that can process video informa- tion of processing, and has advanced to very sophisticated models of retinal processing and the first layerA REAL-TIME SPIKE-DOMAIN SENSORY INFORMATION PROCESSING SYSTEM Udayan Mallik1 , R. Jacob Vogelstein

    12. NSTX-U Advances in Real-Time C++11 on Linux

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

      Erickson, Keith G.

      2015-08-14

      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) willmore »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.« less

    13. Real-time graphic display utility for nuclear safety applications

      SciTech Connect (OSTI)

      Yang, S.; Huang, X.; Taylor, J.; Stevens, J.; Gerardis, T.; Hsu, A.; McCreary, T.

      2006-07-01

      With the increasing interests in the nuclear energy, new nuclear power plants will be constructed and licensed, and older generation ones will be upgraded for assuring continuing operation. The tendency of adopting the latest proven technology and the fact of older parts becoming obsolete have made the upgrades imperative. One of the areas for upgrades is the older CRT display being replaced by the latest graphics displays running under modern real time operating system (RTOS) with safety graded modern computer. HFC has developed a graphic display utility (GDU) under the QNX RTOS. A standard off-the-shelf software with a long history of performance in industrial applications, QNX RTOS used for safety applications has been examined via a commercial dedication process that is consistent with the regulatory guidelines. Through a commercial survey, a design life cycle and an operating history evaluation, and necessary tests dictated by the dedication plan, it is reasonably confirmed that the QNX RTOS was essentially equivalent to what would be expected in the nuclear industry. The developed GDU operates and communicates with the existing equipment through a dedicated serial channel of a flat panel controller (FPC) module. The FPC module drives a flat panel display (FPD) monitor. A touch screen mounted on the FPD serves as the normal operator interface with the FPC/FPD monitor system. The GDU can be used not only for replacing older CRTs but also in new applications. The replacement of the older CRT does not disturb the function of the existing equipment. It not only provides modern proven technology upgrade but also improves human ergonomics. The FPC, which can be used as a standalone controller running with the GDU, is an integrated hardware and software module. It operates as a single board computer within a control system, and applies primarily to the graphics display, targeting, keyboard and mouse. During normal system operation, the GDU has two sources of data input: a serial interface with field equipment and a serial input from the FPD touch screen. The mechanism for data collection from the field equipment consists of the regular exchange of the data update request messages and target commands sent to the equipment and the update messages returned to the FPC. The data updates from field equipment control displays presented on the graphic pages. Touch screen contacts are decoded to identify physical position that was contacted. If that position corresponds with one of the buttons on the graphic page, the software uses that input to initiate the function defined for the particular button contacted. In this paper, the FPC will be illustrated as a standalone system as well as a module in a dedicated control system. The GDU design concepts and its design flow will be demonstrated. The dedication process of the QNX RTOS needed for the GDU will be highlighted. Finally, the GDU with a specific application example used in one of the nuclear power plants will be presented. (authors)

    14. Transportation Secure Data Center: Real-World Data for Value Pricing and Tolling Research (Fact Sheet)

      SciTech Connect (OSTI)

      Not Available

      2013-01-01

      The National Renewable Energy Laboratory (NREL) and the U.S. Department of Transportation (DOT) have launched the free, web-based Transportation Secure Data Center (TSDC). The TSDC (www.nrel.gov/tsdc) preserves respondent anonymity while making vital transportation data available to a broad group of users through secure, online access. The TSDC database provides free-of-charge web-based access to valuable transportation data that can be used for: Location and time-of-day variable tolling research, Mileage-based fee analysis, Travel demand modeling and transit planning, Congestion mitigation research, and Validating transportation data from other sources. The TSDC's two levels of access make composite data available with simple online registration, and allow researchers to use detailed spatial data after completing a straight forward application process.

    15. Real-time processing of a long perimeter fiber optic intrusion system 

      E-Print Network [OSTI]

      Snider, William Timothy

      2009-09-30

      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 ...

    16. A non-intrusive fault tolerant framework for mission critical real-time systems

      E-Print Network [OSTI]

      Gorelov, Sébastien

      2005-01-01

      The need for dependable real-time systems for embedded application is growing, and, at the same time, so does the amount of functionality required from these systems. As testing can only show the presence of errors, not ...

    17. FUTURE POWER GRID INITIATIVE Real-time High-Performance

      E-Print Network [OSTI]

      #12;» System will support time-critical power grid applications (PMU data rate: every 30ms) » Flexible

    18. Retrospective Evaluation of Appliance Price Trends

      SciTech Connect (OSTI)

      Dale, Larry; Antinori, Camille; McNeil, Michael; McMahon, James E.; Fujita, K. Sydny

      2008-07-20

      Real prices of major appliances (refrigerators, dishwashers, heating and cooling equipment) have been falling since the late 1970s despite increases in appliance efficiency and other quality variables. This paper demonstrates that historic increases in efficiency over time, including those resulting from minimum efficiency standards, incur smaller price increases than were expected by Department of Energy (DOE) forecasts made in conjunction with standards. This effect can be explained by technological innovation, which lowers the cost of efficiency, and by market changes contributing to lower markups and economies of scale in production of higher efficiency units. We reach four principal conclusions about appliance trends and retail price setting: 1. For the past several decades, the retail price of appliances has been steadily falling while efficiency has been increasing. 2. Past retail price predictions made by DOE analyses of efficiency standards, assuming constant prices over time, have tended to overestimate retail prices. 3. The average incremental price to increase appliance efficiency has declined over time. DOE technical support documents have typically overestimated this incremental price and retail prices. 4. Changes in retail markups and economies of scale in production of more efficient appliances may have contributed to declines in prices of efficient appliances.

    19. Real-time Optical Network for Accelerator Control

      SciTech Connect (OSTI)

      Lee, Keun

      2012-06-27

      The timing requirements of a modern accelerator complex call for several features. The first is a system for high precision relative timing among accelerator components. Stabilized fiber links have already been demonstrated to achieve sub-10 femtoseconds relative timing precision. The second is a system for timing distribution of absolute time with sufficient precision to identify a specific RF bucket. The White Rabbit technology is a promising candidate to deliver the absolute time that is linked to the GPS clock. In this study we demonstrated that these two technologies can be combined in a way that the absolute time information can be delivered to the stabilized fiber link system. This was accomplished by researching the design of the stabilized fiber and White Rabbit systems and devising adaptation modules that facilitate co-existence of both systems in the same FPGA environment. We built a prototype system using off-the-shelf products and implemented a proof-of-concept version of the FPGA firmware. The test verified that the White Rabbit features operate correctly under the stabilized fiber system environment. This work demonstrates that turn-key femtosecond timing systems with absolute time information can be built cost effectively and deployed in various accelerator environments. This will lead to many new applications in chemistry, biology and surface dynamics, to name a few.

    20. Distributed real-time control via the internet 

      E-Print Network [OSTI]

      Srivastava, Abhinav

      2004-09-30

      data prediction was developed. Experiments were performed to validate the satisfactory performance of this algorithm in the presence of the bonded sporadic excessive time delays....

    1. Roberts: Reconfigurable Platform for Benchmarking Real-time Systems

      E-Print Network [OSTI]

      Luk, Wayne

      complex [2]. Distributed computing and multiprocess- ing complicate task, resource and communication-time properties and energy consumption. The benchmarking takes into account system workload and environmental-test, and with support for on-line monitoring of the response time, output values and energy consumption. The proposed

    2. Application of real time GPS to earthquake early warning Richard M. Allen1

      E-Print Network [OSTI]

      Allen, Richard M.

      in general including tsunami warning systems. Citation: Allen, R. M., and A. Ziv (2011), Application of real of earthquake magnitude for the purpose of earthquake early warning and real time earthquake information systems, 2008; Brown et al., 2009]. In the March 11, 2011 M9 Tohoku oki earthquake the JMA warning system issued

    3. A Real-Time Capable Many-Core Model Stefan Metzlaff, Jorg Mische, Theo Ungerer

      E-Print Network [OSTI]

      Ungerer, Theo

      of Computer Science University of Augsburg Augsburg, Germany {metzlaff architectures. We think that the usage of processors with high core numbers will also emerge in embedded real for embedded real-time systems: predictability, performance and energy efficiency. At first we enunciate a set

    4. Figure 1. Example Current Weather Product INTEGRATING REAL-TIME WEATHER INTO AN INTERNET LEARNING ENVIRONMENT

      E-Print Network [OSTI]

      Wilhelmson, Robert

      Figure 1. Example Current Weather Product INTEGRATING REAL-TIME WEATHER INTO AN INTERNET LEARNING ENVIRONMENT: WW2010 CURRENT WEATHER PRODUCTS Daniel J. Bramer, David P. Wojtowicz, Joel Plutchak, Robert B ­ is that accurate, useful, and if possible, real-life examples of weather phenomena are necessary to best enhance

    5. Real-Time Communication and Coordination in Embedded Sensor Networks

      E-Print Network [OSTI]

      Lu, Chenyang

      sensors and actuators. Because of this interaction, we find that sensor networks are very data-centric. These networks are very data-centric, with data queries being issued from base stations and time-dependent sensor

    6. Looking at Transistor Gate Oxide Formation in Real Time

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

      using this beamline were able to chart the rate of oxidation of silicon in the gate oxide layer for the first time. Understanding the rate of oxidation in this crucial layer...

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

      E-Print Network [OSTI]

      Prathipati, Rajesh Babu

      2004-09-30

      and incorporate more functionality, they became more power-hungry. Thus, reducing power consumption and extending battery lifespan while guaranteeing the timing constraints has became a critical aspect in designing such systems. This gives rise to three aspects...

    8. The relationship between crude oil and natural gas spot prices and its stability over time

      E-Print Network [OSTI]

      Ramberg, David J. (David John)

      2010-01-01

      The historical basis for a link between crude oil and natural gas prices was examined to determine whether one has existed in the past and exists in the present. Physical bases for a price relationship are examined. An ...

    9. A Linear Time Algorithm for Pricing European Sequential Barrier Peng Gao Ron van der Meyden

      E-Print Network [OSTI]

      van der Meyden, Ron

      period. Option con- tracts are one simple kind of financial derivative. For example, a 3-month crude oil option contract states an agreed price for a crude oil transaction 3 months in the future of the date depends on the current crude oil market price and expectations concerning price movements. Although

    10. General schedulability bound analysis and its applications in real-time systems 

      E-Print Network [OSTI]

      Wu, Jianjia

      2007-09-17

      Real-time system refers to the computing, communication, and information system with deadline requirements. To meet these deadline requirements, most systems use a mechanism known as the schedulability test which determines ...

    11. Real-time implementation of a vision based automatic push button 

      E-Print Network [OSTI]

      Rajkotwala, Farida

      1996-01-01

      This thesis presents a real-time digital signal Processing (DSP) system to detect the presence of pedestrians waiting to cross an intersection. Such a system would improve both pedestrian and vehicle flow considering that ...

    12. Adaptive Techniques for Minimizing Middleware Memory Footprint for Distributed, Real-Time, Embedded Systems

      E-Print Network [OSTI]

      Panahi, Mark; Harmon, Trevor; Klefstad, Raymond

      2003-01-01

      Compilers and Tools for Embedded Systems, pp. 38-45, 2002.Keywords-distributed systems; embedded systems; real-timereal-time, and embedded systems, it should provide a full

    13. Near Real-time Data Evaluation Strategies for XRF Imaging Data...

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

      Near Real-time Data Evaluation Strategies for XRF Imaging Data August 24, 2015 11:00AM to 12:00PM Presenter Matthias Alfeld, Universite Pierre et Marie Curie Location Building 431...

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

      E-Print Network [OSTI]

      Ojo, Temitope O.

      2006-08-16

      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...

    15. Parallel and real-time implementation of an acoustic echo canceller using oversampled wavelet frame algorithms 

      E-Print Network [OSTI]

      Tam, Pak-Yin

      1995-01-01

      This thesis describes a novel echo cancellation system that eliminates nonstationary echoes with long acoustic delays in real-time. By combining subband adaptive filtering and active system identification based on fast wavelet transform...

    16. 9th Real-Time Systems Symposium Huntsville, Alabama, pp. 191-200, December 1988.

      E-Print Network [OSTI]

      Tamir, Yuval

      9th Real-Time Systems Symposium Huntsville, Alabama, pp. 191-200, December 1988. SUPPORT FOR HIGH; in a large network some This research is supported by Rockwell International and the State of California

    17. Real-time programming and the big ideas of computational literacy

      E-Print Network [OSTI]

      Hancock, Christopher Michael, 1961-

      2003-01-01

      Though notoriously difficult, real-time programming offers children a rich new set of applications, and the opportunity to engage bodily knowledge and experience more centrally in intellectual enterprises. Moreover, the ...

    18. DSS-mediated Inhibition of Quantitative Real-time Polymerase Chain Reaction 

      E-Print Network [OSTI]

      Kaur, Jaspreet

      2011-08-04

      The incidence of inflammatory bowel diseases (IBD), including ulcerative colitis (UC), is on the rise. UC is modeled in rodents by the consumption of dextran sodium sulfate (DSS). Quantitative real-time polymerase chain reaction (qPCR) is a...

    19. A system for real-time gesture recognition and classification of coordinated motion

      E-Print Network [OSTI]

      Lovell, Steven Daniel

      2005-01-01

      This thesis describes the design and implementation of a wireless 6 degree-of-freedom inertial sensor system to be used for multiple-user, real-time gesture recognition and coordinated activity detection. Analysis is ...

    20. Multiversion Locking Protocol with Freezing for Secure Real-Time Database Systems

      E-Print Network [OSTI]

      Stankovic, John A.

      Multiversion Locking Protocol with Freezing for Secure Real-Time Database Systems Chanjung Park constraints and security requirements, a new method, called the freezing method, is proposed. In order to show

    1. Probing Real-Space and Time-Resolved Correlation Functions with Many-Body Ramsey Interferometry

      E-Print Network [OSTI]

      Demler, Eugene

      Probing Real-Space and Time-Resolved Correlation Functions with Many-Body Ramsey Interferometry October 2013) We propose to use Ramsey interferometry and single-site addressability, available

    2. 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

    3. 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 Unit (PMU) Integrated System #12;Monitoring & Analysis (Base-Case) Main Window KMF BED-BLA 50045005

    4. Continuous reservoir simulation incorporating uncertainty quantification and real-time data 

      E-Print Network [OSTI]

      Holmes, Jay Cuthbert

      2009-05-15

      of uncertainty in resulting forecasts. A new technology to allow this process to run continuously with little human interaction is real-time production and pressure data, which can be automatically integrated into runs. Two tests of this continuous simulation...

    5. Control of real-time multimedia applications in best-effort networks 

      E-Print Network [OSTI]

      Ye, Dan

      2009-05-15

      The increasing demand for real-time multimedia applications and the lack of quality of service (QoS) support in public best-effort or Internet Protocol (IP) networks has prompted many researchers to propose improvements ...

    6. Real-time trajectory optimization and air traffic control simulation for noise abatement approach procedures

      E-Print Network [OSTI]

      Zou, Feng, 1977-

      2004-01-01

      Aircraft noise is a major obstacle to the growth of aviation. This thesis presents an adaptive onboard real-time optimization algorithm and an Air Traffic Control simulation model that can minimize the aircraft approach ...

    7. A power line impedance spectrum analyzer using real-time digital signal processing 

      E-Print Network [OSTI]

      Margolis, Michael G

      1993-01-01

      Power distribution system impedance as seen by power converters and other non-linear loads is important for the determination of harmonic current injection and propagation caused by these loads. This thesis presents a real-time power line impedance...

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

      E-Print Network [OSTI]

      Yuksel, Can

      2007-09-17

      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...

    9. Toward Real-time Modeling of Human Heart Ventricles at Cellular...

      Office of Scientific and Technical Information (OSTI)

      Conference: Toward Real-time Modeling of Human Heart Ventricles at Cellular Resolution: Multi-hour Simulation of Drug-induced Arrhythmias Citation Details In-Document Search Title:...

    10. A non-blocking buffer mechanism for real-time event message communication

      E-Print Network [OSTI]

      Kim, KHK

      2006-01-01

      A Non-Blocking Buffer Mechanism for Real-Time Event Messagecomputing systems. An interaction mechanism, called the non-blocking writer (NBW) mechanism and invented by Kopetz, is

    11. GENERAL TECHNICAL REPORT PSW-GTR-196 Comparative Evaluation of Real-Time PCR

      E-Print Network [OSTI]

      GENERAL TECHNICAL REPORT PSW-GTR-196 554 Comparative Evaluation of Real-Time PCR (Taq Health and Seeds Inspectorate between October 2003 and February 2004. These were surface- decontaminated

    12. Real Time (20 Second) Data Base Single Loop (Packed into 3 bytes)

      E-Print Network [OSTI]

      ) Data Base Single Loop (Packed into 3 bytes) ------------------------------------------- Data Element;------------------------------------------------------------------------- --- Real Time (20 Second) Data Base Station (Packed into 3 bytes Loops | 3 | [0]|Data Present, 0=No Data | |Scan Cnt| 11 | [0]|

    13. Robotic Local Area Networks with Fault-Tolerant Distributed Layers for Real-Time Control

      E-Print Network [OSTI]

      Liberatore, Vincenzo

      manipulation of a solar panel. The expected overall outcome will consists of a modular software platform teams to perform complex real-time tasks. Robotic teams necessitate innovative networks technology

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

      E-Print Network [OSTI]

      Clare, Andrew S

      2013-01-01

      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 ...

    15. Real-time geometric motion blur for a deforming polygonal mesh 

      E-Print Network [OSTI]

      Jones, Nathaniel Earl

      2004-09-30

      Motion blur is one important method for increasing the visual quality of real-time applications. This is increasingly true in the area of interactive applications, where designers often seek to add graphical flair or realism to their programs...

    16. Towards More Transmission Asset Utilization through Real-time Path Rating

      SciTech Connect (OSTI)

      Diao, Ruisheng; Huang, Zhenyu; Jin, Chunlian; Vyakaranam, Bharat GNVSR; Jin, Shuangshuang; Makarov, Yuri V.

      2013-10-21

      Ratings of transmission paths, typically determined in an offline environment, are static and tend to be conservative, leading to underutilization of transmission assets, higher costs of system operation and renewable energy integration, and lower efficiency and savings. With the ever-increasing transmission congestion costs and new challenges from renewable integration, increasing transfer capacity of existing transmission lines is essential. Real-time path rating provides a promising approach to enabling additional power transfer capability and fully utilizing transfer capability. In this paper, the feasibility of real-time path rating is investigated. Several promising technologies to achieve real-time path rating are discussed. Various benefits that can be expected from real-time path rating, such as increased transfer capability and reduced total generation cost, are demonstrated through simulations conducted on the Western Electricity Coordinating Council system model.

    17. Supporting Nested Locking in Multiprocessor Real-Time Systems Bryan C. Ward and James H. Anderson

      E-Print Network [OSTI]

      Anderson, James

      Supporting Nested Locking in Multiprocessor Real-Time Systems Bryan C. Ward and James H. Anderson Department of Computer Science, University of North Carolina at Chapel Hill Abstract This paper presents

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

      E-Print Network [OSTI]

      Meylan, Yves Damien Meylan

      2000-01-01

      Large-scale distributed real-time systems are increasingly difficult to analyze within the Rate Monotonic Analysis (RMA) framework. This is due partly to their heterogeneity, complex interaction between components, and the ...

    19. Real-time large-scale dense RGB-D SLAM with volumetric fusion

      E-Print Network [OSTI]

      Whelan, Thomas

      We present a new simultaneous localization and mapping (SLAM) system capable of producing high-quality globally consistent surface reconstructions over hundreds of meters in real time with only a low-cost commodity RGB-D ...

    20. Adaptive control of real-time media applications in best-effort networks 

      E-Print Network [OSTI]

      Khariwal, Vivek

      2004-11-15

      Quality of Service (QoS) in real-time media applications can be defined as the ability to guarantee the delivery of packets from source to destination over best-effort networks within some constraints. These constraints ...

    1. In-situ, Real-Time Monitoring of Mechanical and Chemical Structure...

      Office of Scientific and Technical Information (OSTI)

      Conference: In-situ, Real-Time Monitoring of Mechanical and Chemical Structure Changes in a V2O5 Battery Electrode Using a MEMS Optical Sensor Citation Details In-Document Search...

    2. Real-Time Security Assessment of Angle Stability Using Synchrophasors

      E-Print Network [OSTI]

      -time operations, be it angle stability or voltage stability. PMU deployment is becoming a common practice across of ap- plications to make use of PMU data has not been at the same pace. This project also analyzes how PMU data can be used to

    3. Energy Reduction in Distributed Real-Time Embedded Applications

      E-Print Network [OSTI]

      Wagner, Flávio Rech

      control and command activities more efficient. Many examples can be quoted, like automotive and avionic requirements, although embedded platforms provide limited resources. Reduced architecture, small memory size room for time and energy optimizations. The focus is on applications that run over an embedded platform

    4. Industrial practices of real-time scheduling Nicolas Navet

      E-Print Network [OSTI]

      Navet, Nicolas

      platforms Automotive in the 90s: one function per ECU Avionics before : federated architectures Zoom on automotive & avionics systems Timing verification techniques & models 2 #12;There is a gap.g. automotive Electronic Control Units & buses. Technology requires state-of-the-art techniques: many- core

    5. Robustness of Ethernet-Based Real-Time Networked Control System with Multi-Level Client/Server Architecture 

      E-Print Network [OSTI]

      Bibinagar, Naveen Kumar

      2010-10-12

      The importance of real-time communication at the device level in a factory automation setup is a widely researched area. This research is an effort to experimentally verify if Ethernet can be used as a real-time communication ...

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

      SciTech Connect (OSTI)

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

      2012-11-16

      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.

    7. New Signal Processing Methods and Information Technologies for the Real Time Control of JET Reactor Relevant Plasmas

      E-Print Network [OSTI]

      New Signal Processing Methods and Information Technologies for the Real Time Control of JET Reactor Relevant Plasmas

    8. Utility spot pricing study : Wisconsin

      E-Print Network [OSTI]

      Caramanis, Michael C.

      1982-01-01

      Spot pricing covers a range of electric utility pricing structures which relate the marginal costs of electric generation to the prices seen by utility customers. At the shortest time frames prices change every five ...

    9. The Potential of Energy Management and Control Systems for Real-Time Electricity Pricing Programs 

      E-Print Network [OSTI]

      Akbari, H.; Heinemeier, K. E.

      1990-01-01

      In implementing an integrated electric utility network, direct communication between the utility and customers is an important component. The rapid penetration of computer building control technology in larger commercial and industrial customers...

    10. Real-time Pricing Leading to Optimal Operation under Distributed Decision Makings

      E-Print Network [OSTI]

      Hespanha, João Pedro

      such as renewable, micro-combined heat and power systems as well as energy storage systems such as batteries and development on the future power grid in which small but variety and a huge number of distributed generators, since the legacy power grid is intended for delivering energy from centralized power generators

    11. CSEM WP 136 Is Real-Time Pricing Green?: The Environmental

      E-Print Network [OSTI]

      California at Berkeley. University of

      in variance on emissions of SO2, NOx, and CO2. According to our estimates, a reduction in within-day load that RTP will reduce variance of electricity load and estimate the short-run impacts of a reduction- Atlantic, and MAIN in the Illinois area). However, a reduction in within-day variance would actually

    12. Impact of Storage on the Efficiency and Prices in Real-Time Electricity Markets

      E-Print Network [OSTI]

      Proutiere, Alexandre

      behavior of the various actors lead to a socially acceptable situation? Electricity markets are highly complex dynamical systems. They incorporate renewable energy sources, such as wind and solar

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

      E-Print Network [OSTI]

      Boutaba, Raouf

      1999 when abnormal hot weather combined with electricity generation shortage resulted in unheard management and is a major con- tributor of electric grid faults. Although peak demand happens very infrastructure (Figure 1): technology upgrade of the electric grid system, all-digital management infrastructure

    14. Customer Risk from Real-Time Retail Electricity Pricing: Bill Volatility and Hedgability

      E-Print Network [OSTI]

      Borenstein, Severin

      2007-01-01

      these are simple forward power purchase contracts, and areof these forward power purchases can signi?cantly enhanceaspect of long-term power purchases; instead I set hedging

    15. Distributed Energy Consumption Control via Real-Time Pricing Feedback in Smart Grid

      E-Print Network [OSTI]

      Ma, Kai; Hu, Guoqiang; Spanos, Costas J

      2014-01-01

      Basar, “Depend- able demand response management in the smartand X. P. Guan, “Optimal demand response schedul- ing withand S. H. Low, “Optimal demand response based on utility

    16. An integrated, subsurface characterization system for real-time, in-situ field analysis

      SciTech Connect (OSTI)

      Baumgart, C.W.; Creager, J.; Mathes, J.; Pounds, T.; VanDeusen, A.; Warthen, B.

      1996-02-01

      This paper describes current efforts at AlliedSignal Federal Manufacturing and Technologies (FM and T) to develop and field an in-situ, data analysis platform to acquire, process, and display site survey data in near real-time. In past years, FM and T has performed a number of site survey tasks. Each of these surveys was unique in application as well as in the type of data processing and analysis that was required to extract and visualize useful site characterization information. However, common to each of these surveys were the following specific computational and operational requirements: (1) a capability to acquire, process, and visualize the site survey data in the field; (2) a capability to perform all processing in a timely fashion (ideally real-time); and (3) a technique for correlating (or fusing) data streams from multiple sensors. Two more general, but no less important, requirements include system architecture modularity and positioning capability. Potential applications include: survey, evaluation, and remediation of numerous Department of Defense and Department of Energy waste sites; real-time detection and characterization of unexploded ordnance and landmines; survey, evaluation, and remediation of industrial waste sites; location of underground utility lines; and providing law enforcement agencies with real-time surveys of crime scenes. The paper describes an integrated data acquisition, processing, and visualization platform that is capable of performing in-situ data processing, interpretation, and visualization in real-time.

    17. On the Efficiency of Competitive Electricity Markets With Time-Invariant Retail Prices

      E-Print Network [OSTI]

      Borenstein, Severin; Holland, Stephen P.

      2003-01-01

      homogeneous product in the retail market, and P would facein wholesale and retail markets Equilibrium prices in thecompetitive investment and retail markets would attain the

    18. 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)

      2014-01-01

      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.

    19. 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

      2015-01-01

      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.

    20. System, device, and methods for real-time screening of live cells, biomarkers, and chemical signatures

      DOE Patents [OSTI]

      Sundaram, S Kamakshi [Richland, WA; Riley, Brian J [West Richland, WA; Weber, Thomas J [Richland, WA; Sacksteder, Colette A [West Richland, WA; Addleman, R Shane [Benton City, WA

      2011-06-07

      An ATR-FTIR device and system are described that defect live-cell responses to stimuli and perturbations in real-time. The system and device can monitor perturbations resulting from exposures to various physical, chemical, and biological materials in real-time, as well as those sustained over a long period of time, including those associated with stimuli having unknown modes-of-action (e.g. nanoparticles). The device and system can also be used to identify specific chemical species or substances that profile cellular responses to these perturbations.

    1. CFlood: A Constrained Flooding Protocol for Real-Time Data Delivery in Wireless Sensor Networks

      E-Print Network [OSTI]

      Ravindran, Binoy

      CFlood: A Constrained Flooding Protocol for Real-Time Data Delivery in Wireless Sensor Networks Bo networks. We present a constrained flooding protocol, called CFlood that enhances the deadline satisfaction-time perfor- mance by flooding, but effectively constrains energy consumption by controlling the scale

    2. REAL-TIME DEPTH BOUNDARY OPTIMIZATION FOR LOCAL AREA-BASED STEREO David Gallup1

      E-Print Network [OSTI]

      Pollefeys, Marc

      a snake-like energy optimized with a dynamic programming method. This clean-up step requires only O(#pixels) time and space, making it well-suited for real-time where local area-based stereo is often used. Our depth estimates are needed immediately, or for processing large amounts of data as in urban

    3. Using Real-Time Three-Dimensional Ultrasound to Characterize Mitral Valve Motion

      E-Print Network [OSTI]

      Ayache, Nicholas

      Using Real-Time Three-Dimensional Ultrasound to Characterize Mitral Valve Motion Paul M. Novotnya results aim to fully characterize the four-dimensional (3D + time) movement of the mitral valve for better understanding of its behavior prior to surgical interventions, such as mitral valve repair. A behavior model

    4. Real Time Monitoring of Subsidence Along I-70 in Washington, Pennsylvania Kevin M. O==Connor

      E-Print Network [OSTI]

      Real Time Monitoring of Subsidence Along I-70 in Washington, Pennsylvania Kevin M. O==Connor Geo for repairs nearly a dozen times over the last several years. Mine subsidence also caused power lines along, past experience had taught PennDoT that the pavement would subside and crack, and there was concern

    5. A Study of Real-Time Identification and Monitoring of Barge-Carried Hazardous Commodities

      E-Print Network [OSTI]

      A Study of Real-Time Identification and Monitoring of Barge-Carried Hazardous Commodities Yangrong 37831 Abstract-- In response to increased terrorist threats related to hazardous material movements and field test a prototype system that provides more accurate, uniform, and timely data on hazardous

    6. 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

    7. A ProgrammingLanguage Extension for Distributed RealTime Systems

      E-Print Network [OSTI]

      Hooman, Jozef

      A Programming­Language Extension for Distributed Real­Time Systems Jozef Hooman and Onno van propose a method for extending programming languages that enables the spec­ ification of timing properties in many existing programming languages. The presented method includes a view on the system development

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

      E-Print Network [OSTI]

      Zhang, J.

      2006-01-01

      a new system control theory, that is computerize the real-time frequency conversion control or area,time, mode of heat transformation and temperature grads. The aim of the new theory is promoting the efficiency of energy conversion and minimizing...

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

      E-Print Network [OSTI]

      Ostroff, Jonathan S.

      and control safety critical sys­ tems. Real­time software controls aircraft, shuts down nuclear power reac of computers in such systems offers considerable benefits, but also poses serious risks to life­time constraints: if the temperature of a nuclear reactor core is too high an alarm must be generated within some

    10. Real-time Generation of Plausible Surface Waves Kristian Yrjola and Thomas Larsson

      E-Print Network [OSTI]

      Larsson, Thomas

      Real-time Generation of Plausible Surface Waves Kristian Yrj¨ol¨a and Thomas Larsson Department, and the exe- cution time of the generated waves can be controlled dynamically. Finally, experimental results illustrate the interactive performance and the visual quality of the generated waves. CR Categories: I.3

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

      E-Print Network [OSTI]

      Zhang, Ying-Bi

      1997-01-01

      of network is popular lately due to their cost-effectiveness, high bandwidth, and scalability. For real-time applications, the most crucial quality of service is to meet deadline requirement which means timely and correct message delivery within the pre...

    12. Exact Roots for a Real-Time Garbage Collector Rasmus Pedersen

      E-Print Network [OSTI]

      Schoeberl, Martin

      . Categories and Subject Descriptors C.3 [Special-Purpose and Application-Based Systems]: Real- time- time system. GC enables automatic dynamic memory manage- ment, which is essential to build large applications. Automatic memory management frees the programmer from complex and er- ror prone explicit memory

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

      E-Print Network [OSTI]

      Low, Steven H.

      -time so as to ease the incorporation of renewable energy into the grid, and so are recognized as priority deferrable loads in order to compensate for the random fluctuations of renewable energy. However, realizingReal-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation Lingwen Gan

    14. UCSF tomography: An integrated software suite for real-time electron microscopic tomographic

      E-Print Network [OSTI]

      Agard, David

      suite provides full automation from data collec- tion to real-time reconstruction by which the three pixel images which are subsequently computationally binned four- fold for the on-line reconstruction improving both productivity and efficiency of system resources. The total time from start of data collection

    15. In International Conference on Telecommunications, Melbourne, Australia, April 2-4, 1997 ABR Pricing Experiments in a Real Network

      E-Print Network [OSTI]

      Weber, Richard

      their information rate in response to congestion control sig- nals from the network. Thus, the ABR service category no incentives for users to send tra c at a rate less than the rate of their access pipe. Considering aggregate to the amount of bandwidth they occupy and whose price will be deter- mined by the total demand (hence

    16. Efficient Real-Time Support for Automotive Applications: A Case Study Gurulingesh R., Neera Sharma, Krithi Ramamritham and Sachitanand Malewar

      E-Print Network [OSTI]

      Ramamritham, Krithi

      Efficient Real-Time Support for Automotive Applications: A Case Study Gurulingesh R., Neera Sharma the performance and safety of the applications. The latter is especially important since intelligent automotive them on a real-world (robotic) platform, (ii) facilitated a real- time approach towards designing ACC

    17. A Study of "Churn" in Tweets and Real-Time Search Queries (Extended Version)

      E-Print Network [OSTI]

      Lin, Jimmy

      2012-01-01

      The real-time nature of Twitter means that term distributions in tweets and in search queries change rapidly: the most frequent terms in one hour may look very different from those in the next. Informally, we call this phenomenon "churn". Our interest in analyzing churn stems from the perspective of real-time search. Nearly all ranking functions, machine-learned or otherwise, depend on term statistics such as term frequency, document frequency, as well as query frequencies. In the real-time context, how do we compute these statistics, considering that the underlying distributions change rapidly? In this paper, we present an analysis of tweet and query churn on Twitter, as a first step to answering this question. Analyses reveal interesting insights on the temporal dynamics of term distributions on Twitter and hold implications for the design of search systems.

    18. Developing Embedded/Real-Time and Cyber-Physical Systems: Functional Reactive Programming, RTL-based Formal Verification, Response Time

      E-Print Network [OSTI]

      Cheng, Albert M. K.

      of such systems. In battery-operated real-time systems such as sensors in a CPS, conserving energy is of critical between battery recharges or energy-harvesting. This tutorial covers the following topics: (1 in Computer Science, graduating Phi Beta Kappa at age 19, the M.S. in Computer Science with a minor

    19. 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

      2015-01-01

      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...

    20. RealTime Filesystems Guaranteeing Timing Constraints for Disk Accesses in RTMach

      E-Print Network [OSTI]

      Rajkumar, Ragunathan "Raj"

      systems, (manufacturing) process control, robotics, air traffic con­ trol, avionics, target­tracking, real, on­demand services and in­ tranet servers for in­house training and continuing educa­ tion bandwidth. In other words, an application can re­ quest a portion of the disk bandwidth with pre

    1. Real-time correlators in warped AdS/CFT correspondence

      E-Print Network [OSTI]

      Bin Chen; Bo Ning; Zhi-bo Xu

      2009-11-01

      We study real-time correlators in the warped AdS/CFT correspondence. We apply the prescription used in the usual AdS/CFT correspondence and obtain the retarded Green's functions for the scalar and vector fields in the spacelike warped and the null warped black hole backgrounds. We find that the retarded Green's functions and the cross sections are well consistent with the predictions from dual CFT. Our results not only support strongly the conjectured warped AdS/CFT correspondence, but also show that the usual relativistic AdS/CFT prescription of obtaining the real-time correlators remain effective in more general backgrounds with anisotropic conformal infinity.

    2. 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

      2014-04-01

      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.

    3. A Wireless Brain-Machine Interface for Real-Time Speech Synthesis

      E-Print Network [OSTI]

      Guenther, Frank H.; Brumberg, Jonathan S.; Wright, E. Joseph; Nieto-Castanon, Alfonso; Tourville, Jason A.; Panko, Mikhail; Law, Robert; Siebert, Steven A.; Bartels, Jess L.; Andreasen, Dinal S.; Ehirim, Princewill; Mao, Hui; Kennedy, Philip R.

      2009-12-09

      A Wireless Brain-Machine Interface for Real-Time Speech Synthesis Frank H. Guenther1,2*, Jonathan S. Brumberg1,3, E. Joseph Wright3, Alfonso Nieto-Castanon4, Jason A. Tourville1, Mikhail Panko1, Robert Law1, Steven A. Siebert3, Jess L. Bartels3...A Wireless Brain-Machine Interface for Real-Time Speech Synthesis Frank H. Guenther1,2*, Jonathan S. Brumberg1,3, E. Joseph Wright3, Alfonso Nieto-Castanon4, Jason A. Tourville1, Mikhail Panko1, Robert Law1, Steven A. Siebert3, Jess L. Bartels3...

    4. Real-Time Met Data from Around the Site - Hanford Site

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

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners * Impacts onReal-Time Chemical Imaging of BacterialReal Time Met

    5. Real-time Process Monitoring and Temperature Mapping of the 3D Polymer

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

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners * Impacts onReal-Time Chemical Imaging of BacterialReal Time

    6. A Hierarchical Demand Response Framework for Data Center Power Cost Optimization Under Real-World Electricity Pricing

      E-Print Network [OSTI]

      Giles, C. Lee

      1 A Hierarchical Demand Response Framework for Data Center Power Cost Optimization Under Real bills. Our focus is on a subset of this work that carries out demand response (DR) by modulating

    7. A Hierarchical Demand Response Framework for Data Center Power Cost Optimization Under Real-World Electricity Pricing

      E-Print Network [OSTI]

      Urgaonkar, Bhuvan

      1 A Hierarchical Demand Response Framework for Data Center Power Cost Optimization Under Real for optimizing their utility bills. Our focus is on a subset of this work that carries out demand response (DR

    8. U.S. diesel fuel prices increase for first time since mid-May

      Gasoline and Diesel Fuel Update (EIA)

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry NaturalPrices Globaldiesel fuel prices7,diesel fuel prices increase

    9. U.S. diesel prices increase for the first time in 6 weeks

      Gasoline and Diesel Fuel Update (EIA)

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry NaturalPrices Globaldiesel fuel prices7,dieseldiesel pricesU.S.1,

    10. 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

      2014-06-10

      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. Today’s 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.

    11. A Real-time Coherent Dedispersion Pipeline for the Giant Metrewave Radio Telescope

      E-Print Network [OSTI]

      De, Kishalay

      2015-01-01

      A fully real-time coherent dedispersion system has been developed for the pulsar back-end at the Giant Metrewave Radio Telescope (GMRT). The dedispersion pipeline uses the single phased array voltage beam produced by the existing GMRT software back-end (GSB) to produce coherently dedispersed intensity output in real time, for the currently operational bandwidths of 16 MHz and 32 MHz. Provision has also been made to coherently dedisperse voltage beam data from observations recorded on disk. We discuss the design and implementation of the real-time coherent dedispersion system, describing the steps carried out to optimise the performance of the pipeline. Presently functioning on an Intel Xeon X5550 CPU equipped with a NVIDIA Tesla C2075 GPU, the pipeline allows dispersion free, high time resolution data to be obtained in real-time. We illustrate the significant improvements over the existing incoherent dedispersion system at the GMRT, and present some preliminary results obtained from studies of pulsars using t...

    12. Towards Real-Time Detection and Tracking of Blob-Filaments in Fusion Plasma Big Data

      E-Print Network [OSTI]

      Wu, Lingfei; Sim, Alex; Churchill, Michael; Choi, Jong Y; Stathopoulos, Andreas; Chang, Cs; Klasky, Scott

      2015-01-01

      Magnetic fusion could provide an inexhaustible, clean, and safe solution to the global energy needs. The success of magnetically-confined fusion reactors demands steady-state plasma confinement which is challenged by the blob-filaments driven by the edge turbulence. Real-time analysis can be used to monitor the progress of fusion experiments and prevent catastrophic events. However, terabytes of data are generated over short time periods in fusion experiments. Timely access to and analyzing this amount of data demands properly responding to extreme scale computing and big data challenges. In this paper, we apply outlier detection techniques to effectively tackle the fusion blob detection problem on extremely large parallel machines. We present a real-time region outlier detection algorithm to efficiently find blobs in fusion experiments and simulations. In addition, we propose an efficient scheme to track the movement of region outliers over time. We have implemented our algorithms with hybrid MPI/OpenMP and ...

    13. Investment Efficiency in Competitive Electricity Markets With and Without Time-Varying Retail Prices

      E-Print Network [OSTI]

      Borenstein, Severin; Holland, Stephen P.

      2002-01-01

      homogeneous product in the retail market, and would face noin wholesale and retail markets Equilibrium prices in thec) = r. In the ?at-rate retail market, however, there is now

    14. The relation between Brazilian and Chicago Board of Trade soybean prices: a time series test 

      E-Print Network [OSTI]

      Melcher, Bruno

      1991-01-01

      , and finally, (c) the nature and degree of intervention by governments or international agencies in the market price determination mechanism. 17 CHAPTER III THE HISTORICAL EVOLUTION OP THE BRAZILIAN SOYBEAN SYSTEM Soybean cultivation in Brazil dates from... at distance, were always present with their love and encouragement. vii TABLE OF CONTENTS Page CHAPTER I INTRODUCTION Objectives. Overview. 5 6 CHAPTER II FUTURES MARKETS Price Discovery. Information. 11 13 CHAPTER III THE HISTORICAL EVOLUTION...

    15. A data-centric approach to composing embedded, real-time software Roel Wuytsa

      E-Print Network [OSTI]

      Ducasse, Stéphane

      1 A data-centric approach to composing embedded, real-time software components Roel Wuytsa ,St not benefitted from component-based software development techniques. This paper describes a data-centric of the project, ABB. The central element of the approach is a data-centric component model that makes it possible

    16. Sensor applications have now touched onto the realms of real-time data processing involving

      E-Print Network [OSTI]

      Najjar, Walid A.

      sensing needs, coupled with an interface integrating up to gigabyte scale energy efficient data storage sound / voice samples. Such applications demand real time storage, filtering, frequency domain analysis involving algorithms as sophisticated as Fast Fourier Transform (FFT), Finite Impulse Response (FIR

    17. A Real-Time Rodent Tracking System for Both Light and Dark Cycle Behavior Analysis

      E-Print Network [OSTI]

      Motai, Yuichi

      monitoring of rodent behavior in a home cage environment, either in a daylight condition (light-cycle) usingA Real-Time Rodent Tracking System for Both Light and Dark Cycle Behavior Analysis Jane Brooks Zurn-field locomotor activity under 880 nm and 940 nm wavelengths of NIR, as well as visible white light and a "dark

    18. Real Time Video Scene Detection and Classification John M. Gauch, Susan Gauch, Sylvain Bouix, Xiaolan Zhu

      E-Print Network [OSTI]

      Kansas, University of

      Real Time Video Scene Detection and Classification John M. Gauch, Susan Gauch, Sylvain Bouix (Video Indexing for Searching Over Networks) digital video library system has been developed in our to provide access to video footage within seconds of broadcast, we have developed a new pipelined digital

    19. Using the Air Void Analyzer for Real-Time Quality Control Adjustments

      E-Print Network [OSTI]

      May 2006 Using the Air Void Analyzer for Real-Time Quality Control Adjustments in the Field Tech Brief by Jim Grove, P.E. Bob Steffes Mark Anderson-Wilk Overview of the Air Void Analyzer The air void analyzer (AVA) with its independent isolation base can be used to accurately evaluate the air void system

    20. Application of Virtual Mobile Networking to Real-Time Patient Monitoring

      E-Print Network [OSTI]

      Bhatti, Saleem N.

      Application of Virtual Mobile Networking to Real-Time Patient Monitoring Devan Rehunathan of such technology in mobile Wireless Body Area Networks (WBANs) for medical purposes allow for inexpensive the vital signs of these patients remotely despite them being mobile. Applications of this approach can

    1. Day-Ahead and Real-Time Models for Large-Scale Energy Storage

      E-Print Network [OSTI]

      Engineering Research Center Empowering Minds to Engineer the Future Electric Energy System #12;DayDay-Ahead and Real-Time Models for Large-Scale Energy Storage Final Project Report Power Systems of Electrical, Computer, and Energy Engineering P.O. BOX 875706 Tempe, AZ 85287-5706 Phone: 480 965-1276 Fax

    2. SuperPin: Parallelizing Dynamic Instrumentation for Real-Time Performance Steven Wallace

      E-Print Network [OSTI]

      Hazelwood, Kim

      SuperPin: Parallelizing Dynamic Instrumentation for Real-Time Performance Steven Wallace Intel Corporation Kim Hazelwood University of Virginia Abstract Dynamic instrumentation systems have proven to be ex drawback of modern instrumentation systems is that the instrumented applications often execute several

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

      E-Print Network [OSTI]

      Real-Time Deep-Ocean Tsunami Measuring, Monitoring, and Reporting System: The NOAA DART II Environmental Laboratory (PMEL) Hugh B. Milburn Oceanographic Engineer 1. Introduction This paper describes the system components that make up the second-generation Deep-Ocean Assessment and Reporting of Tsunamis

    4. 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

    5. 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

    6. Real-Time Optical Characterization of Laser Oxidation Process in Bimetallic Direct Write Gray Scale Photomasks

      E-Print Network [OSTI]

      Chapman, Glenn H.

      density (OD), changes smoothly with increasing laser power, from ~3.0OD (unexposed) to developed capable of providing real time optical density and exposure power changes for the bimetallic thin) are exposed to laser light with power greater than its conversion threshold power, the thin film oxidizes

    7. Real-time Enabled IEEE 802.15.4 Sensor Networks in Industrial Automation

      E-Print Network [OSTI]

      Breu, Ruth

      Real-time Enabled IEEE 802.15.4 Sensor Networks in Industrial Automation Feng Chen, Thomas Talanis, Industry Automation Division, Germany Abstract--Sensor networks have been investigated in many scenarios, sensor networks became also an interesting topic in industrial automation. Here, the main focus

    8. Toward Real-Time Simulation of Physics Based Lithium-Ion Battery Models

      E-Print Network [OSTI]

      Subramanian, Venkat

      Toward Real-Time Simulation of Physics Based Lithium-Ion Battery Models Venkat R. Subramanian Technological University, Cookeville, Tennessee 38505, USA Recent interest in lithium-ion batteries for electric on the computational efficiency of lithium-ion battery models. This paper presents an effective approach to simulate

    9. PyFX: A framework for programming real-time Calle Lejdfors and Lennart Ohlsson

      E-Print Network [OSTI]

      in cinematic graphics have long relied on procedural techniques and in the last few years the evolution real-time effects is today significantly harder than programming cinematic effects. The reason. In the world of cinematic graphics programming visual effects is known as shader pro- gramming. The term shader

    10. Real Time Flow Estimation in Channel Networks using Lagrangian Data Qingfang Wu

      E-Print Network [OSTI]

      - formation about tidal forcing and salinity transport in the bays and channels of the Delta. Reliable flow in the Delta in a real-time mode, without dependence on historical data. Lagrangian data is obtained when a distributed network of channels, subject to quasi-periodic tidal forcing, in the Sacramento-San Joaquin River

    11. Energy Efficient Building Environment Control Strategies Using Real-time Occupancy Measurements

      E-Print Network [OSTI]

      Cerpa, Alberto E.

      Energy Efficient Building Environment Control Strategies Using Real-time Occupancy Measurements (HVAC) systems ac- count for 50% of the total energy budget in buildings [5]. Prior research has shown 10 to 15% of HVAC energy can be reduced in buildings that set ventilation rates based on maximum

    12. 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

    13. CPU Scheduling for Statistically-Assured Real-Time Performance and Improved Energy Efficiency

      E-Print Network [OSTI]

      Ravindran, Binoy

      CPU Scheduling for Statistically-Assured Real-Time Performance and Improved Energy Efficiency@mitre.org ABSTRACT We present a CPU scheduling algorithm, called Energy-efficient Utility Accrual Algorithm (or EUA/utility functions. For battery-powered embedded systems, system-level energy consumption is also a primary concern

    14. OpenConflict: Preventing Real Time Map Hacks in Online Games Elie Bursztein

      E-Print Network [OSTI]

      Boneh, Dan

      real-time strategy games by snooping on the memory used by the game. Kartograph is passive and cannot be detected remotely. Motivated by these passive attacks, we present secure protocols for distributing game Association[1], 67% of American households play video games, and computer games represent a 9.9 billion dollar

    15. Real-Time Forecasting for the Antarctic: An Evaluation of the Antarctic Mesoscale Prediction System (AMPS)*

      E-Print Network [OSTI]

      Howat, Ian M.

      Real-Time Forecasting for the Antarctic: An Evaluation of the Antarctic Mesoscale Prediction System. MANNING AND JORDAN G. POWERS Mesoscale and Microscale Meteorology Division, National Center.S. Antarctic Program's field operations, the Antarctic Mesoscale Prediction System (AMPS) was implemented in Oc

    16. In-Situ Metrology: the Path to Real-Time Advanced Process Control

      E-Print Network [OSTI]

      Rubloff, Gary W.

      in semiconductor technology development and manufacturing. [1,2] Advanced process control (APC) [3, 4] is aimed fault management and course correction, i.e., for real-time advanced process control We have also at exploiting metrology to increase equipment productivity and lower manufacturing costs. Early efforts toward

    17. Strategic, Tactical and RealTime Planning of Locomotives at Norfolk Southern Using Approximate Dynamic Programming

      E-Print Network [OSTI]

      Powell, Warren B.

      Strategic, Tactical and RealTime Planning of Locomotives at Norfolk Southern Using operations. This strategy can be used for strategic and tactical planning, and can also be adapted with a strategic planning system. #12; Page 1 1 Locomotive planning is one of the most complex

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

      E-Print Network [OSTI]

      Kent, University of

      collectors do this by splitting objects (Jamaica [37], Sun's RTS [9]), some move objects (Aonix's PERC [30Handles 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

    19. Real-time Pose Estimation of Deformable Objects Using a Volumetric Approach

      E-Print Network [OSTI]

      Chang, Shih-Fu

      , Michael Case, Shih-Fu Chang, Peter K. Allen Abstract-- Pose estimation of deformable objects is a funda and garment folding. indicates equal contribution Yinxiao Li, Michael Case, and Peter K. Allen method can achieve real-time pose recognition with more accurate prediction of grasping point locations

    20. Computationally Efficient Clustering of Power Supplies in Heterogeneous Real Time Systems

      E-Print Network [OSTI]

      Friedman, Eby G.

      functionally diverse systems with multiple power domains. To provide a high quality power delivery system an integrated part of the power management system. To maintain a high quality power supply despite increasingComputationally Efficient Clustering of Power Supplies in Heterogeneous Real Time Systems Inna