National Library of Energy BETA

Sample records for location time series

  1. Final Exam Location and Time

    E-Print Network [OSTI]

    Final Exam Location and Time. Math 162 Fall 2001. Date: Wednesday December 12, 2001. Time: 7:00 pm -9:00 pm. Location: Lambert Fieldhouse ...

  2. Final Exam Location and Time

    E-Print Network [OSTI]

    Final Exam Location and Time. Math 161 Fall 2001. Date: Friday December 14, 2001. Time: 8:00 am -10:00 am. Location: Lambert Fieldhouse ...

  3. Denoising Deterministic Time Series

    E-Print Network [OSTI]

    Steven P. Lalley; Andrew B. Nobel

    2006-04-21

    This paper is concerned with the problem of recovering a finite, deterministic time series from observations that are corrupted by additive, independent noise. A distinctive feature of this problem is that the available data exhibit long-range dependence and, as a consequence, existing statistical theory and methods are not readily applicable. This paper gives an analysis of the denoising problem that extends recent work of Lalley, but begins from first principles. Both positive and negative results are established. The positive results show that denoising is possible under somewhat restrictive conditions on the additive noise. The negative results show that, under more general conditions on the noise, no procedure can recover the underlying deterministic series.

  4. Commencement Ceremony Department Time Location Department and Major Time Location

    E-Print Network [OSTI]

    Kaji, Hajime

    Engineering 15:30 Bldg. 63 Classroom 01 (2nd Fl.) Industrial and Management Systems Engineering 15:30 Bldg. 63 and Management 15:30 Bldg. 63 Classroom 01 (2nd Fl.) Department Time Location Department and Major Time Location:30 Bldg. 57 202 Modern Mechanical Engineering 10:30 Bldg. 57 202 Industrial and Management Systems

  5. Time Series Analysis 1 Time series in astronomy

    E-Print Network [OSTI]

    Babu, G. Jogesh

    (supernovae, gamma-ray bursts) Difficulties in astronomical time series Gapped data streams: Diurnal & monthly phenomena: thermonuclear (novae, X-ray bursts), magnetic reconnection (solar/stellar flares), star death); pulsation (helioseismology, Cepheids) Stochastic phenomena: accretion (CVs, X-ray binaries, Seyfert gals

  6. Regression quantiles for time series

    E-Print Network [OSTI]

    Cai, Zongwu

    2002-02-01

    ~see, e+g+, Ibragimov and Linnik, 1971, p+ 316!+ Namely, partition REGRESSION QUANTILES FOR TIME SERIES 187 $1, + + + , n% into 2qn 1 1 subsets with large block of size r 5 rn and small block of size s 5 sn+ Set q 5 qn 5 ? n rn 1 sn? , (A.7) where {x...! are the standard Lindeberg–Feller conditions for asymptotic normality of Qn,1 for the independent setup+ Let us first establish ~A+8!+ To this effect, we define the large-block size rn by rn 5 {~nhn!102} and the small-block size sn 5 {~nhn!1020log n}+ Then, as n r...

  7. Detection Methods for Astronomical Time Series

    E-Print Network [OSTI]

    Coehlo, Nathan Kirk

    2010-01-01

    Time Series by Nathan Kirk Coehlo A dissertation submittedCopyright 2010 by Nathan Kirk Coehlo Abstract DetectionTime Series by Nathan Kirk Coehlo Doctor of Philosophy in

  8. Statistical criteria for characterizing irradiance time series.

    SciTech Connect (OSTI)

    Stein, Joshua S.; Ellis, Abraham; Hansen, Clifford W.

    2010-10-01

    We propose and examine several statistical criteria for characterizing time series of solar irradiance. Time series of irradiance are used in analyses that seek to quantify the performance of photovoltaic (PV) power systems over time. Time series of irradiance are either measured or are simulated using models. Simulations of irradiance are often calibrated to or generated from statistics for observed irradiance and simulations are validated by comparing the simulation output to the observed irradiance. Criteria used in this comparison should derive from the context of the analyses in which the simulated irradiance is to be used. We examine three statistics that characterize time series and their use as criteria for comparing time series. We demonstrate these statistics using observed irradiance data recorded in August 2007 in Las Vegas, Nevada, and in June 2009 in Albuquerque, New Mexico.

  9. Multivariate Time Series Forecasting in Incomplete Environments

    E-Print Network [OSTI]

    Roberts, Stephen

    Multivariate Time Series Forecasting in Incomplete Environments Technical Report PARG 08-03 Seung of Oxford December 2008 #12;Seung Min Lee and Stephen J. Roberts Technical Report PARG 08-03 Multivariate missing observations and forecasting future values in incomplete multivariate time series data. We study

  10. Time series of a CME blasting out from the Sun

    E-Print Network [OSTI]

    Christian, Eric

    #12;Time series of a CME blasting out from the Sun Composite image of the Sun in UV light with the naked eye, the Sun seems static, placid, constant. From the ground, the only notice- able variations in the Sun are its location (where will it rise and set today?) and its color (will clouds cover

  11. Integrated method for chaotic time series analysis

    DOE Patents [OSTI]

    Hively, L.M.; Ng, E.G.

    1998-09-29

    Methods and apparatus for automatically detecting differences between similar but different states in a nonlinear process monitor nonlinear data are disclosed. Steps include: acquiring the data; digitizing the data; obtaining nonlinear measures of the data via chaotic time series analysis; obtaining time serial trends in the nonlinear measures; and determining by comparison whether differences between similar but different states are indicated. 8 figs.

  12. Integrated method for chaotic time series analysis

    DOE Patents [OSTI]

    Hively, Lee M. (Philadelphia, TN); Ng, Esmond G. (Concord, TN)

    1998-01-01

    Methods and apparatus for automatically detecting differences between similar but different states in a nonlinear process monitor nonlinear data. Steps include: acquiring the data; digitizing the data; obtaining nonlinear measures of the data via chaotic time series analysis; obtaining time serial trends in the nonlinear measures; and determining by comparison whether differences between similar but different states are indicated.

  13. First time-series optical photometry from Antarctica

    E-Print Network [OSTI]

    K. G. Strassmeier; R. Briguglio; T. Granzer; G. Tosti; I. DiVarano; I. Savanov; M. Bagaglia; S. Castellini; A. Mancini; G. Nucciarelli; O. Straniero; E. Distefano; S. Messina; G. Cutispoto

    2008-07-18

    Beating the Earth's day-night cycle is mandatory for long and continuous time-series photometry and had been achieved with either large ground-based networks of observatories at different geographic longitudes or when conducted from space. A third possibility is offered by a polar location with astronomically-qualified site characteristics. Aims. In this paper, we present the first scientific stellar time-series optical photometry from Dome C in Antarctica and analyze approximately 13,000 CCD frames taken in July 2007. We conclude that high-precision CCD photometry with exceptional time coverage and cadence can be obtained at Dome C in Antarctica and be successfully used for time-series astrophysics.

  14. Can biomass time series be reliably assessed from CPUE time series data Francis Lalo1

    E-Print Network [OSTI]

    Hawai'i at Manoa, University of

    1 Can biomass time series be reliably assessed from CPUE time series data only? Francis Laloë1 to abundance. This means (i) that catchability is constant and (ii) that all the biomass is catchable. If so, relative variations in CPUE indicate the same relative variations in biomass. Myers and Worm consider

  15. Nonlinear time-series analysis revisited

    E-Print Network [OSTI]

    Elizabeth Bradley; Holger Kantz

    2015-03-25

    In 1980 and 1981, two pioneering papers laid the foundation for what became known as nonlinear time-series analysis: the analysis of observed data---typically univariate---via dynamical systems theory. Based on the concept of state-space reconstruction, this set of methods allows us to compute characteristic quantities such as Lyapunov exponents and fractal dimensions, to predict the future course of the time series, and even to reconstruct the equations of motion in some cases. In practice, however, there are a number of issues that restrict the power of this approach: whether the signal accurately and thoroughly samples the dynamics, for instance, and whether it contains noise. Moreover, the numerical algorithms that we use to instantiate these ideas are not perfect; they involve approximations, scale parameters, and finite-precision arithmetic, among other things. Even so, nonlinear time-series analysis has been used to great advantage on thousands of real and synthetic data sets from a wide variety of systems ranging from roulette wheels to lasers to the human heart. Even in cases where the data do not meet the mathematical or algorithmic requirements to assure full topological conjugacy, the results of nonlinear time-series analysis can be helpful in understanding, characterizing, and predicting dynamical systems.

  16. Segmenting Time Series for Weather Forecasting

    E-Print Network [OSTI]

    Reiter, Ehud

    summarisation. We found three alternative ways in which we could model data summarisation. One approach is based turbines. In the domain of meteorology, time series data produced by numerical weather prediction (NWP) models is summarised as weather forecast texts. In the domain of gas turbines, sensor data from

  17. Journal of Combinatorial Theory, Series B 96 (2006) 3849 www.elsevier.com/locate/jctb

    E-Print Network [OSTI]

    Klivans, Caroline J.

    2006-01-01

    Journal of Combinatorial Theory, Series B 96 (2006) 38­49 www.elsevier.com/locate/jctb The Bergman.1016/j.jctb.2005.06.004 #12;F. Ardila, Caroline J. Klivans / Journal of Combinatorial Theory, Series B 96

  18. Random Matrix Spectra as a Time Series

    E-Print Network [OSTI]

    Ruben Fossion; Gamaliel Torres Vargas; Juan Carlos López Vieyra

    2013-11-23

    Spectra of ordered eigenvalues of finite Random Matrices are interpreted as a time series. Dataadaptive techniques from signal analysis are applied to decompose the spectrum in clearly differentiated trend and fluctuation modes, avoiding possible artifacts introduced by standard unfolding techniques. The fluctuation modes are scale invariant and follow different power laws for Poisson and Gaussian ensembles, which already during the unfolding allows to distinguish the two cases.

  19. Normalizing the causality between time series

    E-Print Network [OSTI]

    Liang, X San

    2015-01-01

    Recently, a rigorous yet concise formula has been derived to evaluate the information flow, and hence the causality in a quantitative sense, between time series. To assess the importance of a resulting causality, it needs to be normalized. The normalization is achieved through distinguishing three types of fundamental mechanisms that govern the marginal entropy change of the flow recipient. A normalized or relative flow measures its importance relative to other mechanisms. In analyzing realistic series, both absolute and relative information flows need to be taken into account, since the normalizers for a pair of reverse flows belong to two different entropy balances; it is quite normal that two identical flows may differ a lot in relative importance in their respective balances. We have reproduced these results with several autoregressive models. We have also shown applications to a climate change problem and a financial analysis problem. For the former, reconfirmed is the role of the Indian Ocean Dipole as ...

  20. Univariate Modeling and Forecasting of Monthly Energy Demand Time Series

    E-Print Network [OSTI]

    Abdel-Aal, Radwan E.

    Univariate Modeling and Forecasting of Monthly Energy Demand Time Series Using Abductive and Neural networks, Neural networks, Modeling, Forecasting, Energy demand, Time series forecasting, Power system demand time series based only on data for six years to forecast the demand for the seventh year. Both

  1. Time-of-flight radio location system

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1996-01-01

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

  2. Time-of-flight radio location system

    DOE Patents [OSTI]

    McEwan, T.E.

    1996-04-23

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

  3. Time-of-flight radio location system

    DOE Patents [OSTI]

    McEwan, T.E.

    1997-08-26

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

  4. Time-of-flight radio location system

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1997-01-01

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

  5. Exact Primitives for Time Series Data Mining

    E-Print Network [OSTI]

    Mueen, Abdullah Al

    2012-01-01

    G. Silva, and Rui M. M. Brito. Mining approximate motifs intime series. In Data Mining, 2001. ICDM 2001, Proceedingson Knowledge discovery and data mining, KDD, pages 947–956,

  6. Date Time Event Description/Participants Location

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find what you were looking for? TryUpdated: 06/11/2015 Date Time

  7. Mining Time Series Data: Flying Insect Classification and Detection

    E-Print Network [OSTI]

    Chen, Yanping

    2015-01-01

    Application of Data Mining. ” KDD'11: 761-764, 2011. G.Wang, E. J. Keogh. “Querying and mining of time series data.Mining

  8. Time series power flow analysis for distribution connected PV generation.

    SciTech Connect (OSTI)

    Broderick, Robert Joseph; Quiroz, Jimmy Edward; Ellis, Abraham; Reno, Matthew J.; Smith, Jeff; Dugan, Roger

    2013-01-01

    Distributed photovoltaic (PV) projects must go through an interconnection study process before connecting to the distribution grid. These studies are intended to identify the likely impacts and mitigation alternatives. In the majority of the cases, system impacts can be ruled out or mitigation can be identified without an involved study, through a screening process or a simple supplemental review study. For some proposed projects, expensive and time-consuming interconnection studies are required. The challenges to performing the studies are twofold. First, every study scenario is potentially unique, as the studies are often highly specific to the amount of PV generation capacity that varies greatly from feeder to feeder and is often unevenly distributed along the same feeder. This can cause location-specific impacts and mitigations. The second challenge is the inherent variability in PV power output which can interact with feeder operation in complex ways, by affecting the operation of voltage regulation and protection devices. The typical simulation tools and methods in use today for distribution system planning are often not adequate to accurately assess these potential impacts. This report demonstrates how quasi-static time series (QSTS) simulation and high time-resolution data can be used to assess the potential impacts in a more comprehensive manner. The QSTS simulations are applied to a set of sample feeders with high PV deployment to illustrate the usefulness of the approach. The report describes methods that can help determine how PV affects distribution system operations. The simulation results are focused on enhancing the understanding of the underlying technical issues. The examples also highlight the steps needed to perform QSTS simulation and describe the data needed to drive the simulations. The goal of this report is to make the methodology of time series power flow analysis readily accessible to utilities and others responsible for evaluating potential PV impacts.

  9. Time Series Photometry Data: Standard Access, Standard Formats

    E-Print Network [OSTI]

    Holl, András

    Time Series Photometry Data: Standard Access, Standard Formats Andr#19; as Holl Konkoly Observatory a discussion on data access and #12;le format aspects of photometry. Introduction Presently there is time series photometry data available in public databases, but the access to these varies from one collection

  10. Efficient Mining of Partial Periodic Patterns in Time Series Database

    E-Print Network [OSTI]

    Dong, Guozhu

    Efficient Mining of Partial Periodic Patterns in Time Series Database In ICDE 99 Jiawei Han \\Lambda peri­ odic patterns in time­series databases, is an interesting data mining problem. Previous studies several algorithms for efficient mining of par­ tial periodic patterns, by exploring some interesting

  11. A Multivariate Approach to Estimate Complexity of FMRI Time Series

    E-Print Network [OSTI]

    A Multivariate Approach to Estimate Complexity of FMRI Time Series Henry Sch¨utze1,2 , Thomas (MPSE), a multivariate entropy ap- proach that estimates spatio-temporal complexity of fMRI time series. In a temporally sliding window, MPSE measures the differential entropy of an assumed multivariate Gaussian density

  12. Multiple Time Series 7.1 Introduction

    E-Print Network [OSTI]

    Penny, Will

    , W.D. Penny, April 2000. 7.2.1 Cross­correlation is asymmetric First, we re­cap as to why the auto, W.D. Penny, April 2000. 89 (a) 0 20 40 60 80 100 -2 -1 0 1 2 3 4 Figure 7.1: Signals x t (top) and y this should occur ? #12; 90 Signal Processing Course, W.D. Penny, April 2000. 7.2.3 Time­Delay Estimation

  13. Times Series Study of Effects of Petroleum Production on GDP 

    E-Print Network [OSTI]

    Ballinger, Leslie 1991-

    2012-05-02

    development. The countries studied include: Argentina, Canada, Colombia, the United States, Mexico, Venezuela, Peru, and Indonesia. The dates of analysis are different for every country due to data reliability. This paper focuses mainly on a time series...

  14. 14.384 Time Series Analysis, Fall 2008

    E-Print Network [OSTI]

    Schrimpf, Paul

    The course provides a survey of the theory and application of time series methods in econometrics. Topics covered will include univariate stationary and non-stationary models, vector autoregressions, frequency domain ...

  15. 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.

  16. Enhancing Location Privacy for Electric Vehicles (at the right time)

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Enhancing Location Privacy for Electric Vehicles (at the right time) Joseph K. Liu1 , Man Ho Au2 University of Wollongong, Australia {aau, wsusilo}@uow.edu.au Abstract. An electric vehicle is a promising of electric vehicles at the right time, by proposing an anonymous payment system with privacy protection

  17. Time cartogram series to explore differences in the level of railway services: a case of the Overijssel railways

    E-Print Network [OSTI]

    Time cartogram series to explore differences in the level of railway services: a case, population or travelling-time. A time cartogram is a type of cartogram in which the geographic-distance between locations is replaced by a time-related attribute (e.g., travelling-time) and the geography

  18. Resampling Methodology in Spatial Prediction and Repeated Measures Time Series 

    E-Print Network [OSTI]

    Rister, Krista Dianne

    2012-02-14

    of an SEM image. . . . . . . . . . . . . . . . . . . . . . . . 56 10 Framework of time time series representation of SEM image. . . . . . 57 11 Approximate values of f(L; ?, ?) for L = 200 for varying values of ?. 63 12 Bootstrap variance estimates... Cor- rected Predictor . . . . . . . . . . . . . . . . . . . . . 20 3. Bias of Predictors . . . . . . . . . . . . . . . . . . . . 21 F. Simulations . . . . . . . . . . . . . . . . . . . . . . . . . . 26 1. Framework...

  19. Feature-preserving interpolation and filtering of environmental time series

    E-Print Network [OSTI]

    Mariethoz, Gregoire; Jougnot, Damien; Rezaee, Hassan

    2015-01-01

    We propose a method for filling gaps and removing interferences in time series for applications involving continuous monitoring of environmental variables. The approach is non-parametric and based on an iterative pattern-matching between the affected and the valid parts of the time series. It considers several variables jointly in the pattern matching process and allows preserving linear or non-linear dependences between variables. The uncertainty in the reconstructed time series is quantified through multiple realizations. The method is tested on self-potential data that are affected by strong interferences as well as data gaps, and the results show that our approach allows reproducing the spectral features of the original signal. Even in the presence of intense signal perturbations, it significantly improves the signal and corrects bias introduced by asymmetrical interferences. Potential applications are wide-ranging, including geophysics, meteorology and hydrology.

  20. NONLINEAR MULTIVARIATE AND TIME SERIES ANALYSIS BY NEURAL NETWORK METHODS

    E-Print Network [OSTI]

    Hsieh, William

    NONLINEAR MULTIVARIATE AND TIME SERIES ANALYSIS BY NEURAL NETWORK METHODS William W. Hsieh] Methods in multivariate statistical analysis are essential for working with large amounts of geophysical multivariate statistical analysis, there is a hierarchy of methods, starting with linear regression at the base

  1. Symbolic Dynamic Analysis of Transient Time Series for Fault

    E-Print Network [OSTI]

    Ray, Asok

    Symbolic Dynamic Analysis of Transient Time Series for Fault Detection in Gas Turbine Engines paper presents a symbolic dynamics-based method for detection of incipient faults in gas turbine engines dynamics, fault detection, aircraft gas turbine engines 1 Introduction Performance monitoring of aircraft

  2. Chaotic time series prediction using artificial neural networks

    SciTech Connect (OSTI)

    Bartlett, E.B.

    1991-12-31

    This paper describes the use of artificial neural networks to model the complex oscillations defined by a chaotic Verhuist animal population dynamic. A predictive artificial neural network model is developed and tested, and results of computer simulations are given. These results show that the artificial neural network model predicts the chaotic time series with various initial conditions, growth parameters, or noise.

  3. Chaotic time series prediction using artificial neural networks

    SciTech Connect (OSTI)

    Bartlett, E.B.

    1991-01-01

    This paper describes the use of artificial neural networks to model the complex oscillations defined by a chaotic Verhuist animal population dynamic. A predictive artificial neural network model is developed and tested, and results of computer simulations are given. These results show that the artificial neural network model predicts the chaotic time series with various initial conditions, growth parameters, or noise.

  4. Discrimination of Locally Stationary Time Series Based on the Excess Mass Functional

    E-Print Network [OSTI]

    Polonik, Wolfgang

    Discrimination of Locally Stationary Time Series Based on the Excess Mass Functional Gabriel CHANDLER and Wolfgang POLONIK Discrimination of time series is an important practical problem the time series. Instead, features are measured for each time series, and discrimination is based

  5. Nonlinear chaos in temperature time series: Part I: Case studies

    E-Print Network [OSTI]

    Yaron Rosenstein; Gal Zahavi

    2012-11-27

    In this work we present 3 case studies of local temperature time series obtained from stations in Europe and Israel. The nonlinear nature of the series is presented along with model based forecasting. Data is nonlinearly filtered using high dimensional projection and analysis is performed on the filtered data. A lorenz type model of 3 first order ODEs is then fitted. Forecasts are shown for periods of 100 days ahead, outperforming any existing forecast method known today. While other models fail at forecasting periods above 11 days, ours shows remarkable stability 100 days ahead. Thus finally a local dynamical system if found for local temperature forecasting not requiring solution of Navier-Stokes equations. Thus saving computational costs.

  6. Characterizing Weak Chaos using Time Series of Lyapunov Exponents

    E-Print Network [OSTI]

    R. M. da Silva; C. Manchein; M. W. Beims; E. G. Altmann

    2015-06-13

    We investigate chaos in mixed-phase-space Hamiltonian systems using time series of the finite- time Lyapunov exponents. The methodology we propose uses the number of Lyapunov exponents close to zero to define regimes of ordered (stickiness), semi-ordered (or semi-chaotic), and strongly chaotic motion. The dynamics is then investigated looking at the consecutive time spent in each regime, the transition between different regimes, and the regions in the phase-space associated to them. Applying our methodology to a chain of coupled standard maps we obtain: (i) that it allows for an improved numerical characterization of stickiness in high-dimensional Hamiltonian systems, when compared to the previous analyses based on the distribution of recurrence times; (ii) that the transition probabilities between different regimes are determined by the phase-space volume associated to the corresponding regions; (iii) the dependence of the Lyapunov exponents with the coupling strength.

  7. Math 577 Computational Mathematics I Time and Location: 1:50--3:05 TR, Location E1 242

    E-Print Network [OSTI]

    Fasshauer, Greg

    Math 577 ­ Computational Mathematics I Time and Location: 1:50--3:05 TR, Location E1 242 Instructor: Mathematics of Scientific Computing, 3rd Ed, Brooks/Cole (2002), ISBN 0-534-38905-8. Other required material numerical methods for computing eigenvalues and their derivation. 4. Students will understand the basic

  8. EMCS and time-series energy data analysis in a large government office building

    E-Print Network [OSTI]

    Piette, Mary Ann; Kinney, Satkartar; Friedman, Hannah

    2001-01-01

    th EMCS and Time-Series Energy Data Analysis in a LargeEMCS and Time-Series Energy Data Analysis in a Largeyears of utility bill energy data to evaluate whole-building

  9. New Problems for an Old Design: Time-Series Analyses of Air Pollution and Health

    E-Print Network [OSTI]

    Dominici, Francesca

    New Problems for an Old Design: Time-Series Analyses of Air Pollution and Health Jonathan M. Samet1 of particulate air pollution on the same or recent days (1;2). Studies of similar time-series design of morbidity for adverse effects of particulate air pollution on the public's health. The daily time-series studies of air

  10. Exposure Measurement Error in Time-Series Studies of Air Pollution: Concepts and Consequences

    E-Print Network [OSTI]

    Dominici, Francesca

    1 Exposure Measurement Error in Time-Series Studies of Air Pollution: Concepts and Consequences S in time-series studies 1 11/11/99 Keywords: measurement error, air pollution, time series, exposure of air pollution and health. Because measurement error may have substantial implications for interpreting

  11. Dynamic and Robust Capacitated Facility Location in Time Varying Demand Environments 

    E-Print Network [OSTI]

    Torres Soto, Joaquin

    2010-07-14

    This dissertation studies models for locating facilities in time varying demand environments. We describe the characteristics of the time varying demand that motivate the analysis of our location models in terms of total demand and the change...

  12. February 8, 2015 16:49 World Scientific Review Volume -9in x 6in "time-series classification" page 1 Sparse Representation for Time-Series Classification

    E-Print Network [OSTI]

    Ray, Asok

    February 8, 2015 16:49 World Scientific Review Volume - 9in x 6in "time-series classification" page:49 World Scientific Review Volume - 9in x 6in "time-series classification" page 2 2 S. Bahrampour and N. M

  13. SumTime-Turbine: A Knowledge-Based System to Communicate Gas Turbine Time-Series Data

    E-Print Network [OSTI]

    Reiter, Ehud

    SumTime-Turbine: A Knowledge-Based System to Communicate Gas Turbine Time-Series Data Jin Yu of Aberdeen Aberdeen, AB24 3UE, UK {jyu, ereiter, jhunter, ssripada}@csd.abdn.ac.uk Abstract: SumTime-Turbine produces textual summaries of archived time- series data from gas turbines. These summaries should help

  14. Frascati Physics Series Vol. VVVVVV (xxxx), pp. 000-000 XX Conference Location, Date-start -Date-end, Year

    E-Print Network [OSTI]

    Morselli, Aldo

    with carbon fiber radiator, are employed for particle identification at low and high energies, respectively. A Time-of-Flight (ToF) system made of three double-layer planes of plastic scintillator strips. A series of plastic scintillator counters for anticoincidence and shower tail catching complete

  15. On the long-term correlations and multifractal properties of electric arc furnace time series

    E-Print Network [OSTI]

    Livi, Lorenzo; Rizzi, Antonello; Sadeghian, Alireza

    2015-01-01

    In this paper, we study long-term correlations and multifractal properties elaborated from time series of three-phase current signals coming from an industrial electric arc furnace plant. Implicit sinusoidal trends are suitably detected in the scaling of the fluctuation function of such time series. Time series are then initially filtered via a Fourier based analysis, removing hence such strong periodicities. In the filtered time series we detected long-term, positive correlations. The presence of persistent correlations is in agreement with the typical V--I characteristic (hysteresis) of the electric arc furnace, justifying thus the memory effects found in the current time series. The multifractal signature is strong enough in the filtered time series to be effectively classified as multifractal.

  16. RESEARCH Open Access Longitudinal variability of time-location/activity

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    /weekend), season (warm/cool), sex, employment status, and over the follow-up period. Results: As expected, day- base (CHAD), which houses time-activity data from a large number of studies, are single-day diaries of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits

  17. Image/Time Series Mining Algorithms: Applications to Developmental Biology, Document Processing and Data Streams

    E-Print Network [OSTI]

    Tataw, Oben Moses

    2013-01-01

    International Conference on Data Mining (2001). Khairy, K. ,and Eamonn Keogh (2011). Mining Historical Documents forWang, E. J. Keogh. Querying and mining of time series data.

  18. 348 Book Reviews Nonlinear Time Series: Nonparametric and Parametric Methods.

    E-Print Network [OSTI]

    Fan, Jianqing

    diagnostics, and then computes optimal predictors for future values of the series. Autoregressive moving aver of topics covered in this book makes for a large and awk- ward load. It is like coming home from the grocery, and breaks, and some items are lost altogether. This book has scratches scattered throughout, in the form

  19. Input Data Reduction for the Prediction of Financial Time Series

    E-Print Network [OSTI]

    Verleysen, Michel

    on data from the BEL20 market index. 1. Introduction Since the beginning of this century, the question of the predictability of financial series (at least of stock market prices) has been the subject of a highly. To perform the transformation between the initial inputs and the new variables, we may choose to use a linear

  20. Granger Causality in Multi-variate Time Series using a Time Ordered Restricted Vector Autoregressive Model

    E-Print Network [OSTI]

    Siggiridou, Elsa

    2015-01-01

    Granger causality has been used for the investigation of the inter-dependence structure of the underlying systems of multi-variate time series. In particular, the direct causal effects are commonly estimated by the conditional Granger causality index (CGCI). In the presence of many observed variables and relatively short time series, CGCI may fail because it is based on vector autoregressive models (VAR) involving a large number of coefficients to be estimated. In this work, the VAR is restricted by a scheme that modifies the recently developed method of backward-in-time selection (BTS) of the lagged variables and the CGCI is combined with BTS. Further, the proposed approach is compared favorably to other restricted VAR representations, such as the top-down strategy, the bottom-up strategy, and the least absolute shrinkage and selection operator (LASSO), in terms of sensitivity and specificity of CGCI. This is shown by using simulations of linear and nonlinear, low and high-dimensional systems and different t...

  1. UNSW School of Aviation S2-2015 Colloquium Series Location: School of Aviation, Old Main Building, Level 2, Room 221

    E-Print Network [OSTI]

    New South Wales, University of

    UNSW School of Aviation S2-2015 Colloquium Series Location: School of Aviation, Old Main Building September Jim Mitchell UWS Human Factors & Safety Automation in light aircraft: a cross national analysis

  2. Functional Coefficient Regression Models for Non-linear Time Series: A Polynomial

    E-Print Network [OSTI]

    Shen, Haipeng

    Functional Coefficient Regression Models for Non-linear Time Series: A Polynomial Spline Approach of functional coefficient regression models for non-linear time series. Consistency and rate of convergence to estimate the coefficient functions. Cai et al. (2000) and Chen & Liu (2001) used the local linear method

  3. A regression model with a hidden logistic process for feature extraction from time series

    E-Print Network [OSTI]

    Chamroukhi, Faicel

    A regression model with a hidden logistic process for feature extraction from time series Faicel from time series is proposed in this paper. This approach consists of a specific regression model Reweighted Least-Squares (IRLS) algorithm. A piecewise regression algorithm and its iterative variant have

  4. Discrimination and Classification of Nonstationary Time Series using the SLEX Model

    E-Print Network [OSTI]

    Discrimination and Classification of Nonstationary Time Series using the SLEX Model Hsiao-Yun Huang scheme based on the SLEX (Smooth Localized Complex EXponential) library. The SLEX library forms domains. Thus, the SLEX library has the ability to extract local spectral features of the time series

  5. Discrimination and Classification of Nonstationary Time Series Using the SLEX Model

    E-Print Network [OSTI]

    Discrimination and Classification of Nonstationary Time Series Using the SLEX Model Hsiao-Yun HUANG a discriminant scheme based on the SLEX (smooth localized complex exponential) library. The SLEX library forms domains. Thus, the SLEX library has the ability to extract local spectral features of the time series

  6. A test for second order stationarity of a time series based on the Discrete Fourier Transform

    E-Print Network [OSTI]

    Subba Rao, Suhasini

    A test for second order stationarity of a time series based on the Discrete Fourier Transform property, we construct a Portmanteau type test statistic for testing stationarity of the time series. It is shown that under the null of stationarity, the test statistic is approximately a chi square distribution

  7. Abstract--We present a method to integrate environmental time series

    E-Print Network [OSTI]

    89 Abstract--We present a method to integrate environmental time series into stock assessment). A general framework for integrating environmental time series into stock assessment models: model models and to test the significance of correlations between population processes and the environmental

  8. SVG and Geo Web Services for visualization of time series data of flood risk Barend Kbben

    E-Print Network [OSTI]

    Köbben, Barend

    SVG and Geo Web Services for visualization of time series data of flood risk Barend Köbben. The Open Geospatial Consortiums Web Map Service (WMS) specification is no doubt the most widely implemented webservices Open Web Services specifications Time series in WMS RIMapperWMS: SVG from WMS SVG animation of Geo-WebServices

  9. Detecting Climate Change in Multivariate Time Series Data by Novel Clustering and Cluster Tracing Techniques

    E-Print Network [OSTI]

    Detecting Climate Change in Multivariate Time Series Data by Novel Clustering and Cluster Tracing Aachen University, Germany {kremer, guennemann, seidl}@cs.rwth-aachen.de Abstract--Climate change can series, and trace the clusters over time. A climate pattern is categorized as a changing pattern

  10. Stochastic Generation of Synthetic Precipitation Time Series with High Temporal and Spatial Resolution for Engineering Practice

    E-Print Network [OSTI]

    Cirpka, Olaf Arie

    Stochastic Generation of Synthetic Precipitation Time Series with High Temporal and Spatial.Brommundt@iws.uni-stuttgart.de Introduction The stochastic precipitation time series generator, NiedSim, has been developed and installed been generated. In the year 2004 NiedSim was set up for Hessen and Rheinland-Pfalz. The total project

  11. Towards Never-Ending Learning from Time Series Streams , Yanping Chen*

    E-Print Network [OSTI]

    Zordan, Victor

    that an email is sent to the building supervisor with a picture of the patterns and any other useful metadata a time series produced by a light sensor at Soda Hall in Berkley. While the sensor will produce data sensors at Soda Hall produce a never- ending time series, of which we can cache only a small subset main

  12. Lean Blow-Out Prediction in Gas Turbine Combustors Using Symbolic Time Series Analysis

    E-Print Network [OSTI]

    Ray, Asok

    Lean Blow-Out Prediction in Gas Turbine Combustors Using Symbolic Time Series Analysis Achintya of lean blowout in gas turbine combustors based on symbolic analysis of time series data from optical. For the purpose of detecting lean blowout in gas turbine combustors, the state probability vector obtained

  13. A METHOD FOR IDENTIFYING REPETITION STRUCTURE IN MUSICAL AUDIO BASED ON TIME SERIES PREDICTION

    E-Print Network [OSTI]

    Dixon, Simon

    A METHOD FOR IDENTIFYING REPETITION STRUCTURE IN MUSICAL AUDIO BASED ON TIME SERIES PREDICTION This paper investigates techniques for determining the repeti- tion structure of musical audio. In particular. To this end, we propose a novel approach based on multivari- ate time series modelling of audio features

  14. Summarizing Neonatal Time Series Data Somayajulu G. Sripada, Ehud Reiter, Jim Hunter and Jin Yu

    E-Print Network [OSTI]

    a time series. We are building a system to summarize physiological times series data such as heart rate forecasts from weather data such as wind speed, wind direction, and wave heights. In gas turbines we pressure sampled every second for three hours. Figure 2 shows its summary extracted from a small corpus

  15. Summarizing Neonatal Time Series Data Somayajulu G. Sripada, Ehud Reiter, Jim Hunter and Jin Yu

    E-Print Network [OSTI]

    Reiter, Ehud

    a time series. We are building a system to summarize physiological times series data such as heart rate forecasts from weather data such as wind speed, wind direction, and wave heights. In gas turbines we for three hours. Figure 2 shows its summary extracted from a small corpus of human written summaries we

  16. Modelling signal interactions with application to financial time series

    E-Print Network [OSTI]

    Jain, Bonny

    2014-01-01

    In this thesis, we concern ourselves with the problem of reasoning over a set of objects evolving over time that are coupled through interaction structures that are themselves changing over time. We focus on inferring ...

  17. URL: http://www.elsevier.nl/locate/entcs/volume68.html 18 pages Timed CSP = Closed Timed Automata 1

    E-Print Network [OSTI]

    Ouaknine, Joël

    URL: http://www.elsevier.nl/locate/entcs/volume68.html 18 pages Timed CSP = Closed Timed Automata 1 70118, USA Abstract We study the expressive power of an augmented version of Timed CSP and show constraints. We also show that this new version of Timed CSP is expressive enough to capture the most widely

  18. A New Architecture for Summarising Time Series Data

    E-Print Network [OSTI]

    Sripada, Yaji

    of the systems developed in the SumTime Project2 ) summarises sensor data from gas turbines. This is challenging because of the large amount of data being summarised; a typical gas turbine has 250 ana- logue data generation techniques to produce summaries of such data. A short extract from SumTime-Turbine's input data

  19. A FAST MODEL-BUILDING METHOD FOR TIME SERIES USING GENETIC PROGRAMMING

    E-Print Network [OSTI]

    Fernandez, Thomas

    generation, initial values of the parameters in an model (offspring) are inherited from the parents. step-2 series and applied it to lots of time series: (1) computer generated chaos e.g. Logistic, Loessler is made by using a set of finite number of past values measured from the system )x,,x,(xfx~ n-t2-t1-tt

  20. IMPROVED SEMI-PARAMETRIC TIME SERIES MODELS OF AIR POLLUTION AND MORTALITY

    E-Print Network [OSTI]

    Dominici, Francesca

    IMPROVED SEMI-PARAMETRIC TIME SERIES MODELS OF AIR POLLUTION AND MORTALITY Francesca Dominici series analyses of air pollution and health attracted the attention of the scientific community, policy makers, the press, and the diverse stakeholders con- cerned with air pollution. As the Environmental

  1. 2001, Applied Statistics, 50, 143-154. Nonlinear autoregressive time series with multivariate

    E-Print Network [OSTI]

    Glasbey, Chris

    series is proposed to model solar radiation data, by specifying joint marginal distributions at low lags, Multiprocess dynamic linear model, Solar radiation 1 Introduction Knowledge of the statistical characteristics of time series of solar radiation has many uses, one of which is in the design and evaluation of solar

  2. Topic Time Series Analysis of Microblogs ellai@uci.edu

    E-Print Network [OSTI]

    Bertozzi, Andrea L.

    -worthy phenomena. However, transforming raw, free-form, real time text into meaningful in- formation remains spatially, temporally or both might be of interest to analysts, marketers, researchers, law enforcement of microblog topics, where edges represent the predictive power of one topic for another. Recovery

  3. Time and location differentiated NOX control in competitive electricity markets using cap-and-trade mechanisms

    E-Print Network [OSTI]

    Martin, Katherine C.

    2007-01-01

    Due to variations in weather and atmospheric chemistry, the timing and location of nitrogen oxide (NOX) reductions determine their effectiveness in reducing ground-level ozone, which adversely impacts human health. Electric ...

  4. Time Reversed Acoustics and applications to earthquake location and salt dome flank imaging

    E-Print Network [OSTI]

    Lu, Rongrong

    2008-01-01

    The objective of this thesis is to investigate the applications of Time Reversed Acoustics (TRA) to locate seismic sources and image subsurface structures. The back-propagation process of the TRA experiment can be divided ...

  5. Dynamic dependence analysis : modeling and inference of changing dependence among multiple time-series

    E-Print Network [OSTI]

    Siracusa, Michael Richard, 1980-

    2009-01-01

    In this dissertation we investigate the problem of reasoning over evolving structures which describe the dependence among multiple, possibly vector-valued, time-series. Such problems arise naturally in variety of settings. ...

  6. 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

  7. Time-Series Classification of High-Temporal Resolution AVHRR NDVI Imagery of Mexico

    E-Print Network [OSTI]

    Egbert, Stephen L.; Ortega-Huerta, Miguel; Martí nez-Meyer, Enrique; Price, Kevin P.; Peterson, A. Townsend

    2000-01-01

    Time-series data from wide-field sensors, acquired for the period of a growing season or longer, capitalize on phenological changes in vegetation and make it possible to identify vegetated land cover types in greater detail. ...

  8. Generalized Volterra-Wiener and surrogate data methods for complex time series analysis

    E-Print Network [OSTI]

    Shashidhar, Akhil

    2006-01-01

    This thesis describes the current state-of-the-art in nonlinear time series analysis, bringing together approaches from a broad range of disciplines including the non-linear dynamical systems, nonlinear modeling theory, ...

  9. Time Series and the Dynamics of Demand Pacing Daniel T. Kaplan

    E-Print Network [OSTI]

    Kaplan, Daniel T.

    Time Series and the Dynamics of Demand Pacing Daniel T. Kaplan Dept. of Mathematics & Computer on in Kaplan2 and Christini and Kaplan3 . Along with the theory, I will detail some of the signal processing

  10. Modeling Gene Regulatory Networks from Time Series Data using Particle Filtering 

    E-Print Network [OSTI]

    Noor, Amina

    2012-10-19

    This thesis considers the problem of learning the structure of gene regulatory networks using gene expression time series data. A more realistic scenario where the state space model representing a gene network evolves nonlinearly is considered while...

  11. Mining Time Series Data: Moving from Toy Problems to Realistic Deployments

    E-Print Network [OSTI]

    Hu, Bing

    2013-01-01

    Conference on Data Mining, 2010 V. Chandola, A. Banerjee,and E. Keogh. “ Querying and Mining of Time Series Data:2 nd Workshop on Temporal Data Mining, 2002 K. Malatesta, S.

  12. A Time Series Analysis of Microarray Data Selnur Erdal1,2

    E-Print Network [OSTI]

    Ferhatosmanoglu, Hakan

    by algorithms that can extract and cluster related behaviors from the full population of time-series behaviors observed. Although traditional clus- tering techniques have shown to be effective for certain types

  13. Analysis of MODIS 250 m NDVI Using Different Time-Series Data for Crop Type Separability

    E-Print Network [OSTI]

    Lee, Eunmok

    2014-08-31

    The primary objectives of this research were to: (1) investigate the use of different compositing periods of NDVI values of time-series MODIS 250 m data for distinguishing major crop types on the central Great Plains of ...

  14. Nonparametric estimation of additive nonlinear ARX time series: Local Linear Fitting and Projections

    E-Print Network [OSTI]

    Cai, Zongwu; Masry, Elias

    2000-08-01

    We consider the estimation and identification of the components (endogenous and exogenous) of additive nonlinear ARX time series models. We employ a local polynomial fitting scheme coupled with projections. We establish ...

  15. Desertification of high latitude ecosystems: conceptual models, time-series analyses and experiments 

    E-Print Network [OSTI]

    Thorsson, Johann

    2009-05-15

    -1 DESERTIFICATION OF HIGH LATITUDE ECOSYSTEMS: CONCEPTUAL MODELS, TIME-SERIES ANALYSES AND EXPERIMENTS A Dissertation by JOHANN THORSSON Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of DOCTOR OF PHILOSOPHY December 2008 Major Subject: Rangeland Ecology and Management DESERTIFICATION OF HIGH LATITUDE ECOSYSTEMS: CONCEPTUAL MODELS, TIME-SERIES ANALYSES AND EXPERIMENTS A Dissertation by JOHANN...

  16. Introduction to Ocean Station Time Series CD-ROM The National Oceanographic Data Center (NODC) and the World Data Center for

    E-Print Network [OSTI]

    Introduction to Ocean Station Time Series CD-ROM The National Oceanographic Data Center (NODC) and the World Data Center for Oceanography (WDC) have compiled from the NODC Oceanographic Station Data File a set of oceanographic data having repetitive samples along ocean sections or at fixed locations

  17. The application of complex network time series analysis in turbulent heated jets

    SciTech Connect (OSTI)

    Charakopoulos, A. K.; Karakasidis, T. E. Liakopoulos, A.; Papanicolaou, P. N.

    2014-06-15

    In the present study, we applied the methodology of the complex network-based time series analysis to experimental temperature time series from a vertical turbulent heated jet. More specifically, we approach the hydrodynamic problem of discriminating time series corresponding to various regions relative to the jet axis, i.e., time series corresponding to regions that are close to the jet axis from time series originating at regions with a different dynamical regime based on the constructed network properties. Applying the transformation phase space method (k nearest neighbors) and also the visibility algorithm, we transformed time series into networks and evaluated the topological properties of the networks such as degree distribution, average path length, diameter, modularity, and clustering coefficient. The results show that the complex network approach allows distinguishing, identifying, and exploring in detail various dynamical regions of the jet flow, and associate it to the corresponding physical behavior. In addition, in order to reject the hypothesis that the studied networks originate from a stochastic process, we generated random network and we compared their statistical properties with that originating from the experimental data. As far as the efficiency of the two methods for network construction is concerned, we conclude that both methodologies lead to network properties that present almost the same qualitative behavior and allow us to reveal the underlying system dynamics.

  18. Engine Control Improvement through Application of Chaotic Time Series Analysis

    SciTech Connect (OSTI)

    Green, J.B., Jr.; Daw, C.S.

    2003-07-15

    The objective of this program was to investigate cyclic variations in spark-ignition (SI) engines under lean fueling conditions and to develop options to reduce emissions of nitrogen oxides (NOx) and particulate matter (PM) in compression-ignition direct-injection (CIDI) engines at high exhaust gas recirculation (EGR) rates. The CIDI activity builds upon an earlier collaboration between ORNL and Ford examining combustion instabilities in SI engines. Under the original CRADA, the principal objective was to understand the fundamental causes of combustion instability in spark-ignition engines operating with lean fueling. The results of this earlier activity demonstrated that such combustion instabilities are dominated by the effects of residual gas remaining in each cylinder from one cycle to the next. A very simple, low-order model was developed that explained the observed combustion instability as a noisy nonlinear dynamical process. The model concept lead to development of a real-time control strategy that could be employed to significantly reduce cyclic variations in real engines using existing sensors and engine control systems. This collaboration led to the issuance of a joint patent for spark-ignition engine control. After a few years, the CRADA was modified to focus more on EGR and CIDI engines. The modified CRADA examined relationships between EGR, combustion, and emissions in CIDI engines. Information from CIDI engine experiments, data analysis, and modeling were employed to identify and characterize new combustion regimes where it is possible to simultaneously achieve significant reductions in NOx and PM emissions. These results were also used to develop an on-line combustion diagnostic (virtual sensor) to make cycle-resolved combustion quality assessments for active feedback control. Extensive experiments on engines at Ford and ORNL led to the development of the virtual sensor concept that may be able to detect simultaneous reductions in NOx and PM emissions under low temperature combustion (LTC) regimes. An invention disclosure was submitted to ORNL for the virtual sensor under the CRADA. Industrial in-kind support was available throughout the project period. Review of the research results were carried out on a regular basis (annual reports and meetings) followed by suggestions for improvement in ongoing work and direction for future work. A significant portion of the industrial support was in the form of experimentation, data analysis, data exchange, and technical consultation.

  19. Iterative prediction of chaotic time series using a recurrent neural network

    SciTech Connect (OSTI)

    Essawy, M.A.; Bodruzzaman, M. [Tennessee State Univ., Nashville, TN (United States). Dept. of Electrical and Computer Engineering; Shamsi, A.; Noel, S. [USDOE Morgantown Energy Technology Center, WV (United States)

    1996-12-31

    Chaotic systems are known for their unpredictability due to their sensitive dependence on initial conditions. When only time series measurements from such systems are available, neural network based models are preferred due to their simplicity, availability, and robustness. However, the type of neutral network used should be capable of modeling the highly non-linear behavior and the multi-attractor nature of such systems. In this paper the authors use a special type of recurrent neural network called the ``Dynamic System Imitator (DSI)``, that has been proven to be capable of modeling very complex dynamic behaviors. The DSI is a fully recurrent neural network that is specially designed to model a wide variety of dynamic systems. The prediction method presented in this paper is based upon predicting one step ahead in the time series, and using that predicted value to iteratively predict the following steps. This method was applied to chaotic time series generated from the logistic, Henon, and the cubic equations, in addition to experimental pressure drop time series measured from a Fluidized Bed Reactor (FBR), which is known to exhibit chaotic behavior. The time behavior and state space attractor of the actual and network synthetic chaotic time series were analyzed and compared. The correlation dimension and the Kolmogorov entropy for both the original and network synthetic data were computed. They were found to resemble each other, confirming the success of the DSI based chaotic system modeling.

  20. Anomaly detection in thermal pulse combustors using symbolic time series analysis

    E-Print Network [OSTI]

    Ray, Asok

    pulse combustor. Results are presented to exemplify early detection of combustion instability due339 Anomaly detection in thermal pulse combustors using symbolic time series analysis S Gupta1 for anomaly detection in thermal pulse combustors. The anomaly detection method has been tested on the time

  1. Climate signal detection using wavelet transform: How to make a time series sing

    SciTech Connect (OSTI)

    Lau, K.M.; Weng, H.

    1995-12-01

    In this paper, the application of the wavelet transform (WT) to climate time series analyses is introduced. A tutorial description of the basic concept of WT, compared with similar concepts used in music, is also provided. Using an analogy between WT representation of a time series and a music score, the authors illustrate the importance of local versus global information in the time-frequency localization of climate signals. Examples of WT applied to climate data analysis are demonstrated using analytic signals as well as real climate time series. Results of WT applied to two climate time series-that is, a proxy paleoclimate time series with a 2.5-Myr deep-sea sediment record of {gamma}{sup 18}O and a 140-yr monthly record of Northern Hemisphere surface temperature-are presented. The former shows the presence of a 40-kyr and a 100-kyr oscillation and an abrupt transition in the oscillation regime at 0.7 Myr before the present, consistent with previous studies. The latter possesses a myriad of oscillatory modes f rom interannual (2-5 yr), interdecadal (10-12 yr, 20-25 yr, and 40-60 yr), and century ({approximately}180 yr) scales at different periods of the data record. In spite of the large difference in timescales, common features in time-frequency characteristics of these two time series have been identified. These features suggest that the variations of the earth`s climate are consistent with those exhibited by a nonlinear dynamical system under external forcings. 32 refs., 9 figs.

  2. Time Series Evaluation of Radiation Portal Monitor Data for Point Source Detection

    SciTech Connect (OSTI)

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

    2009-12-08

    The time series of data from a Radiation Portal Monitor (RPM) system are evaluated for the presence of point sources by isolating the contribution of anomalous radiation. Energy-windowed background spectra taken from the RPM are compared with the observed spectra at each time step during a vehicle drive-through. The total signal is turned into a spectral distance index using this method. This provides a time series with reduced systematic fluctuations due to background attenuation by the vehicle, and allows for point source detection by time-series analyses. The anomalous time series is reanalyzed by using a wavelet filter function of similar size to the expected source profile. A number of real drive-through data sets taken at a U.S. port of entry are analyzed in this way. A set of isotopes are injected into the data set, and the resultant benign and injected data sets are analyzed with gross-counting, spectral-ratio, and time-based algorithms. Spectral and time methods together offer a significant increase to detection performance.

  3. Unified functional network and nonlinear time series analysis for complex systems science: The pyunicorn package

    E-Print Network [OSTI]

    Donges, Jonathan F; Beronov, Boyan; Wiedermann, Marc; Runge, Jakob; Feng, Qing Yi; Tupikina, Liubov; Stolbova, Veronika; Donner, Reik V; Marwan, Norbert; Dijkstra, Henk A; Kurths, Jürgen

    2015-01-01

    We introduce the pyunicorn (Pythonic unified complex network and recurrence analysis toolbox) open source software package for applying and combining modern methods of data analysis and modeling from complex network theory and nonlinear time series analysis. pyunicorn is a fully object-oriented and easily parallelizable package written in the language Python. It allows for the construction of functional networks such as climate networks in climatology or functional brain networks in neuroscience representing the structure of statistical interrelationships in large data sets of time series and, subsequently, investigating this structure using advanced methods of complex network theory such as measures and models for spatial networks, networks of interacting networks, node-weighted statistics or network surrogates. Additionally, pyunicorn provides insights into the nonlinear dynamics of complex systems as recorded in uni- and multivariate time series from a non-traditional perspective by means of recurrence qua...

  4. A non subjective approach to the GP algorithm for analysing noisy time series

    E-Print Network [OSTI]

    K. P. Harikrishnan; R. Misra; G. Ambika; A. K. Kembhavi

    2006-03-11

    We present an adaptation of the standard Grassberger-Proccacia (GP) algorithm for estimating the Correlation Dimension of a time series in a non subjective manner. The validity and accuracy of this approach is tested using different types of time series, such as, those from standard chaotic systems, pure white and colored noise and chaotic systems added with noise. The effectiveness of the scheme in analysing noisy time series, particularly those involving colored noise, is investigated. An interesting result we have obtained is that, for the same percentage of noise addition, data with colored noise is more distinguishable from the corresponding surrogates, than data with white noise. As examples for real life applications, analysis of data from an astrophysical X-ray object and human brain EEG, are presented.

  5. TIME SERIES MODELS OF THREE SETS OF RXTE OBSERVATIONS OF 4U 1543-47

    SciTech Connect (OSTI)

    Koen, C.

    2013-03-01

    The X-ray nova 4U 1543-47 was in a different physical state (low/hard, high/soft, and very high) during the acquisition of each of the three time series analyzed in this paper. Standard time series models of the autoregressive moving average (ARMA) family are fitted to these series. The low/hard data can be adequately modeled by a simple low-order model with fixed coefficients, once the slowly varying mean count rate has been accounted for. The high/soft series requires a higher order model, or an ARMA model with variable coefficients. The very high state is characterized by a succession of 'dips', with roughly equal depths. These seem to appear independently of one another. The underlying stochastic series can again be modeled by an ARMA form, or roughly as the sum of an ARMA series and white noise. The structuring of each model in terms of short-lived aperiodic and 'quasi-periodic' components is discussed.

  6. Detrended partial cross-correlation analysis of two time series influenced by common external forces

    E-Print Network [OSTI]

    Qian, Xi-Yuan; Jiang, Zhi-Qiang; Podobnik, Boris; Zhou, Wei-Xing; Stanley, H Eugene

    2015-01-01

    We propose a new method, detrended partial cross-correlation analysis (DPXA), to uncover the intrinsic power-law cross-correlations between two simultaneously recorded time series in the presence of nonstationarity after removing the effects of other time series acting as common forces. The DPXA method is a generalization of the detrended cross-correlation analysis by taking into account the partial correlation analysis. We illustrate the performance of the method using bivariate fractional Brownian motions and multifractal binomial measures with analytical expressions and apply it to extract the intrinsic cross-correlation between crude oil and gold futures by considering the impact of the US dollar index.

  7. Nonlinear analysis of time series of vibration data from a friction brake: SSA, PCA, and MFDFA

    E-Print Network [OSTI]

    Nikolay K. Vitanov; Norbert P. Hoffmann; Boris Wernitz

    2014-10-23

    We use the methodology of singular spectrum analysis (SSA), principal component analysis (PCA), and multi-fractal detrended fluctuation analysis (MFDFA), for investigating characteristics of vibration time series data from a friction brake. SSA and PCA are used to study the long time-scale characteristics of the time series. MFDFA is applied for investigating all time scales up to the smallest recorded one. It turns out that the majority of the long time-scale dynamics, that is presumably dominated by the structural dynamics of the brake system, is dominated by very few active dimensions only and can well be understood in terms of low dimensional chaotic attractors. The multi-fractal analysis shows that the fast dynamical processes originating in the friction interface are in turn truly multi-scale in nature.

  8. Time-varying Spectral Analysis in Neurophysiological Time Series Using Hilbert

    E-Print Network [OSTI]

    Whitcher, Brandon

    ability to detect time-varying coherence and phase properties. Key words: Coherence, electromyographic

  9. Aalborg Universitet ARIMA-Based Time Series Model of Stochastic Wind Power Generation

    E-Print Network [OSTI]

    Bak-Jensen, Birgitte

    the nonstationarity and physical limits of stochastic wind power generation. The model is constructed based on wind power measurement of one year from the Nysted offshore wind farm in Denmark. The proposed limitedAalborg Universitet ARIMA-Based Time Series Model of Stochastic Wind Power Generation Chen, Peiyuan

  10. Neural networks as a tool for constructing continuous NDVI time series from AVHRR and MODIS

    E-Print Network [OSTI]

    Neural networks as a tool for constructing continuous NDVI time series from AVHRR and MODIS M. E-stationary aspect of NDVI, we use an artificial neural network (ANN) to map the NDVI indices from AVHRR to those the AVHRR record. Four years of overlap between the two sensors is used to train a neural network to remove

  11. Railway Subsidence Monitoring by High Resolution INSAR Time Series Analysis in Tianjin

    E-Print Network [OSTI]

    Perissin, Daniele

    Railway Subsidence Monitoring by High Resolution INSAR Time Series Analysis in Tianjin Qingli Luo1 and the development of urban are seriously affected by the subsidence of them. Permanent Scatterers (PS) technology was developed as a powerful tool for subsidence monitoring. High resolution of 1m data can be provided by Terra

  12. Time Series Measurements of Temperature, Current Velocity, and Sediment Resuspension in Saginaw Bay

    E-Print Network [OSTI]

    Time Series Measurements of Temperature, Current Velocity, and Sediment Resuspension in Saginaw Bay and verification. These measurements will be made as part of this project. Measurements of sediment resuspension sediment resuspension in the bay during the spring. Measurements of sediment resuspension are important

  13. Evolving Neural Network Weights for Time-Series Prediction of General Aviation Flight Data

    E-Print Network [OSTI]

    Hu, Wen-Chen

    and predictive maintenance systems, reducing accident rates and saving lives. Keywords: Time-Series Prediction and lucrative industry, it has the highest accident rates within civil aviation [21]. For many years between 0.08% for altitude to 2% for roll. Cross validation of the best neural networks indicate

  14. DAMAGE DETECTION IN A WIND TURBINE BLADE BASED ON TIME SERIES Simon Hoell, Piotr Omenzetter

    E-Print Network [OSTI]

    Boyer, Edmond

    DAMAGE DETECTION IN A WIND TURBINE BLADE BASED ON TIME SERIES METHODS Simon Hoell, Piotr Omenzetter (SHM) systems. Different methods have been developed for detection of damages in WT blades. However a damage detection method based on autocorrelations of response accelerations. The damage sensitive feature

  15. Mapping Deforestation and Forest Degradation Using Landsat Time Series: a Case of Sumatra--Indonesia

    E-Print Network [OSTI]

    20 Mapping Deforestation and Forest Degradation Using Landsat Time Series: a Case of Sumatra--Indonesia Belinda Arunarwati Margono1, 2 Abstract Indonesia experiences the second highest rate of deforestation monitoring system, in addition to the problem of cloud cover in Indonesia. In this work, we demonstrate

  16. Indexing of Time Series by Major Minima and Maxima Eugene Fink

    E-Print Network [OSTI]

    Fink, Eugene

    sets: stock prices, air and sea temperatures, and wind speeds. Keywords: Compression, indexing.ics.uci.edu). Wind speeds: We have used daily wind speeds at twelve sites in Ireland, from 1961 to 1978, ob- tained. Indexing: The indexing of a time-series database is based on the notion of major inclines, illustrated

  17. Indexing of Time Series by Major Minima and Maxima Eugene Fink

    E-Print Network [OSTI]

    Fink, Eugene

    sets: stock prices, air and sea temperatures, and wind speeds. Keywords: Compression, indexing.ics.uci.edu). Wind speeds: We have used daily wind speeds at twelve sites in Ireland, from 1961 to 1978, ob­ tained. Indexing: The indexing of a time­series database is based on the notion of major inclines, illustrated

  18. OUTPUT-ONLY STATISTICAL TIME SERIES METHODS FOR STRUCTURAL HEALTH MONITORING: A COMPARATIVE STUDY

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    OUTPUT-ONLY STATISTICAL TIME SERIES METHODS FOR STRUCTURAL HEALTH MONITORING: A COMPARATIVE STUDY-STSMs) for Structural Health Monitoring (SHM) is presented via damage de- tection and identification in a GARTEUR type for Structural Health Monitoring (SHM). Their use is of high importance for structures such as bridges, aircraft

  19. Recognising Visual Patterns to Communicate Gas Turbine Time-Series Data

    E-Print Network [OSTI]

    Reiter, Ehud

    Recognising Visual Patterns to Communicate Gas Turbine Time-Series Data Jin Yu, Jim Hunter, Ehud analogue channels are sampled once per second and archived by the Tiger system for monitoring gas turbines that it is very important to identify such patterns in any attempt at summarisation. In the gas turbine domain

  20. Creating and Using Geospatial Ontology Time Series in a Semantic Cultural Heritage Portal

    E-Print Network [OSTI]

    Hyvönen, Eero

    Creating and Using Geospatial Ontology Time Series in a Semantic Cultural Heritage Portal Tomi annotations in semantic cultural heritage portals commonly make spatiotemporal references to historical heritage portal CULTURESAMPO to sup- port faceted semantic search of contents and to visualize historical

  1. INHERENT WATER OPTICAL PROPERTIES AT THE CARIBBEAN TIME SERIES STATION (CaTS)

    E-Print Network [OSTI]

    Gilbes, Fernando

    INHERENT WATER OPTICAL PROPERTIES AT THE CARIBBEAN TIME SERIES STATION (CaTS) Fernando Gilbes Rico 00681 ABSTRACT The temporal variability of the inherent water optical properties at the Caribbean wavelengths, but in all cases, the values were less than one. The correlation between bio-optical properties

  2. Ultrasound radio-frequency time series for finding malignant breast lesions

    E-Print Network [OSTI]

    Freitas, Nando de

    -based solutions for breast lesion characterization to reduce the patient recall rate after mammography screening. In this work, ultrasound radio frequency time series analysis is performed for sepa- rating benign framework can help in differentiating malignant from benign breast lesions. 1 Introduction In the United

  3. Monitoring water stress using time series of observed to unstressed surface temperature difference

    E-Print Network [OSTI]

    Gentine, Pierre

    Monitoring water stress using time series of observed to unstressed surface temperature difference to monitor stress have shifted from establishing empirical relationships between combined vegetation cover/temperature surface temperature as a baseline to monitor water stress. The unstressed temperature is the equilibrium

  4. Time-series validation of MODIS land biophysical products in a Kalahari woodland, Africa

    E-Print Network [OSTI]

    Myneni, Ranga B.

    Time-series validation of MODIS land biophysical products in a Kalahari woodland, Africa K. F MODIS variables are produced from the same algorithm. Solar zenith angle effects, differences between the two sides of the leaves are not symmetrical; 3. horizontally projected LAI is the area of `shadow

  5. Time Series Analysis with R A. Ian McLeod, Hao Yu, Esam Mahdi

    E-Print Network [OSTI]

    McLeod, Ian

    it is built on a solid foundation of core statistical and numerical algorithms. The R programming languageTime Series Analysis with R A. Ian McLeod, Hao Yu, Esam Mahdi Department of Statistical out some other key features of this quantitative programming environment (QPE). R is an open source

  6. 1.2000-2009 time-series return information for Snake River: a. Fall Chinook Salmon

    E-Print Network [OSTI]

    #12;Content: 1.2000-2009 time-series return information for Snake River: a. Fall Chinook Salmon b. Sockeye Salmon c. Summer Steelhead d. Spring/Summer Chinook Salmon 2.2010 run-size forecasts for: a. Sockeye Salmon b. Spring/Summer Chinook Salmon #12;#12;Species: Run: Origin: Period: Chinook Salmon Fall

  7. The Fourier Transform The Fourier transform is crucial to any discussion of time series analysis, and this chapter discusses the

    E-Print Network [OSTI]

    Masci, Frank

    The Fourier Transform The Fourier transform is crucial to any discussion of time series analysis: Fourier Series Fourier Transform Example and Interpretation Oddness and Evenness The Convolution Theorem Discrete Fourier Transforms Definitions Example Implementation Author à Fourier Series Recall the Fourier

  8. Detecting and interpreting distortions in hierarchical organization of complex time series

    E-Print Network [OSTI]

    Dro?d?, Stanis?aw

    2015-01-01

    Hierarchical organization is a cornerstone of complexity and multifractality constitutes its central quantifying concept. For model uniform cascades the corresponding singularity spectra are symmetric while those extracted from empirical data are often asymmetric. Using the selected time series representing such diverse phenomena like price changes and inter-transaction times in the financial markets, sentence length variability in the narrative texts, Missouri River discharge and Sunspot Number variability as examples, we show that the resulting singularity spectra appear strongly asymmetric, more often left-sided but in some cases also right-sided. We present a unified view on the origin of such effects and indicate that they may be crucially informative for identifying composition of the time series. One particularly intriguing case of this later kind of asymmetry is detected in the daily reported Sunspot Number variability. This signals that either the commonly used famous Wolf formula distorts the real d...

  9. Time series analysis of ionization waves in dc neon glow discharge

    SciTech Connect (OSTI)

    Hassouba, M. A.; Al-Naggar, H. I.; Al-Naggar, N. M.; Wilke, C. [Department of Physics, Faculty of Science, Benha University (Egypt); Institute of Physics, E. M. A. University, Domstrasse 10a, 17489 Greifswald (Germany)

    2006-07-15

    The dynamics of dc neon glow discharge is examined by calculating a Lyapunov exponent spectrum (LES) and correlation dimension (D{sub corr}) from experimental time series. The embedding theory is used to reconstruct an attractor with the delay coordinate method. The analysis refers to periodic, chaotic, and quasi-periodic attractors. The results obtained are confirmed by a comparison with other methods of time series analysis such as the Fourier power spectrum and autocorrelation function. The main object of the present work is the positive column of a dc neon glow discharge. The positive column is an excellent model for the study of a non-linearity plasma system because it is nonisothermal plasma far from equilibrium.

  10. A test for second order stationarity of a time series based on the Discrete Fourier Transform -Technical report

    E-Print Network [OSTI]

    Subba Rao, Suhasini

    A test for second order stationarity of a time series based on the Discrete Fourier Transform stationary. Exploiting this important property, we construct a Portmanteau type test statistic for testing stationarity of the time series. It is shown that under the null of stationarity, the test statistic has

  11. PUSHING THE LIMITS OF GROUND-BASED PHOTOMETRIC PRECISION: SUBMILLIMAGNITUDE TIME-SERIES PHOTOMETRY OF THE OPEN CLUSTER NGC 6791

    E-Print Network [OSTI]

    Gaudi, B. Scott

    PUSHING THE LIMITS OF GROUND-BASED PHOTOMETRIC PRECISION: SUBMILLIMAGNITUDE TIME-SERIES PHOTOMETRY of this study was to demonstrate the ability to obtain very high precision photometry for a large number to obtain high-precision (millimagnitude, or less than 1%) time-series, optical and infrared photometry

  12. Mesoscale variability in time series data: Satellite-based estimates for the U.S. JGOFS Bermuda Atlantic

    E-Print Network [OSTI]

    Mesoscale variability in time series data: Satellite-based estimates for the U.S. JGOFS Bermuda TOPEX/Poseidon­ERS-1/2) are used to characterize, statistically, the mesoscale variability about the U to better understand the contribution of mesoscale eddies to the time series record and the model- data

  13. Multifractal analysis of stress time series during ultrathin lubricant film melting

    E-Print Network [OSTI]

    A. V. Khomenko; I. A. Lyashenko; V. N. Borisyuk

    2010-07-20

    Melting of an ultrathin lubricant film confined between two atomically flat surfaces is we studied using the rheological model for viscoelastic matter approximation. Phase diagram with domains, corresponding to sliding, dry, and two types of $stick-slip$ friction regimes has been built taking into account additive noises of stress, strain, and temperature of the lubricant. The stress time series have been obtained for all regimes of friction using the Stratonovich interpretation. It has been shown that self-similar regime of lubricant melting is observed when intensity of temperature noise is much larger than intensities of strain and stress noises. This regime is defined by homogenous distribution, at which characteristic stress scale is absent. We study stress time series obtained for all friction regimes using multifractal detrended fluctuation analysis. It has been shown that multifractality of these series is caused by different correlations that are present in the system and also by a power-law distribution. Since the power-law distribution is related to small stresses, this case corresponds to self-similar solid-like lubricant.

  14. Time Series Evaluation of Radiation Portal Monitor Data for Point Source Discrimination.

    SciTech Connect (OSTI)

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

    2009-07-20

    A novel algorithm approach to evaluating data from PVT-based Radiation Portal Monitor (RPM) systems is established. Time series of data from RPMs are evaluated for the presence of sources of interest by comparing the background to the vehicle spectrum at each successive time step, isolating the contribution of anomalous radiation. At each time in the data sequence, a “spectral distance” index is calculated using this method. This method may dramatically reduce systematic fluctuations due to background attenuation by a vehicle (the so-called “shadow shielding” effect), and allow for time-series matched filtering for discrimination of compact anomalous sources. This is attempted by using a wavelet filter function of similar size to the expected source profile on the output of the spectral distance method. Performance of this method is shown by analysis (injection studies) of a number of real drive-through data sets taken at a U.S. port of entry. Spectra from isotopes of interest are injected into the data set, and the resultant “benign” and “injected” data sets are analyzed with gross-counting, spectral distance, and spatial algorithms. The combination of spectral and spatial analysis methods showed a significant increase to detection performance.

  15. Transportation Energy Futures Series: Vehicle Technology Deployment Pathways: An Examination of Timing and Investment Constraints

    SciTech Connect (OSTI)

    Plotkin, S.; Stephens, T.; McManus, W.

    2013-03-01

    Scenarios of new vehicle technology deployment serve various purposes; some will seek to establish plausibility. This report proposes two reality checks for scenarios: (1) implications of manufacturing constraints on timing of vehicle deployment and (2) investment decisions required to bring new vehicle technologies to market. An estimated timeline of 12 to more than 22 years from initial market introduction to saturation is supported by historical examples and based on the product development process. Researchers also consider the series of investment decisions to develop and build the vehicles and their associated fueling infrastructure. A proposed decision tree analysis structure could be used to systematically examine investors' decisions and the potential outcomes, including consideration of cash flow and return on investment. This method requires data or assumptions about capital cost, variable cost, revenue, timing, and probability of success/failure, and would result in a detailed consideration of the value proposition of large investments and long lead times. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency effort to pinpoint underexplored strategies for abating GHGs and reducing petroleum dependence related to transportation.

  16. Transportation Energy Futures Series. Vehicle Technology Deployment Pathways. An Examination of Timing and Investment Constraints

    SciTech Connect (OSTI)

    Plotkin, Steve; Stephens, Thomas; McManus, Walter

    2013-03-01

    Scenarios of new vehicle technology deployment serve various purposes; some will seek to establish plausibility. This report proposes two reality checks for scenarios: (1) implications of manufacturing constraints on timing of vehicle deployment and (2) investment decisions required to bring new vehicle technologies to market. An estimated timeline of 12 to more than 22 years from initial market introduction to saturation is supported by historical examples and based on the product development process. Researchers also consider the series of investment decisions to develop and build the vehicles and their associated fueling infrastructure. A proposed decision tree analysis structure could be used to systematically examine investors' decisions and the potential outcomes, including consideration of cash flow and return on investment. This method requires data or assumptions about capital cost, variable cost, revenue, timing, and probability of success/failure, and would result in a detailed consideration of the value proposition of large investments and long lead times. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency effort to pinpoint underexplored strategies for abating GHGs and reducing petroleum dependence related to transportation.

  17. Interpretation of engine cycle-to-cycle variation by chaotic time series analysis

    SciTech Connect (OSTI)

    Daw, C.S.; Kahl, W.K.

    1990-01-01

    In this paper we summarize preliminary results from applying a new mathematical technique -- chaotic time series analysis (CTSA) -- to cylinder pressure data from a spark-ignition (SI) four-stroke engine fueled with both methanol and iso-octane. Our objective is to look for the presence of deterministic chaos'' dynamics in peak pressure variations and to investigate the potential usefulness of CTSA as a diagnostic tool. Our results suggest that sequential peak cylinder pressures exhibit some characteristic features of deterministic chaos and that CTSA can extract previously unrecognized information from such data. 18 refs., 11 figs., 2 tabs.

  18. Fast detection of nonlinearity and nonstationarity in short and noisy time series

    E-Print Network [OSTI]

    M. De Domenico; V. Latora

    2010-07-07

    We introduce a statistical method to detect nonlinearity and nonstationarity in time series, that works even for short sequences and in presence of noise. The method has a discrimination power similar to that of the most advanced estimators on the market, yet it depends only on one parameter, is easier to implement and faster. Applications to real data sets reject the null hypothesis of an underlying stationary linear stochastic process with a higher confidence interval than the best known nonlinear discriminators up to date.

  19. Efficient algorithm for locating and sizing series compensation devices in large power transmission grids: I. Model implementation

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

    Frolov, Vladimir; Backhaus, Scott; Chertkov, Misha

    2014-10-24

    We explore optimization methods for planning the placement, sizing and operations of Flexible Alternating Current Transmission System (FACTS) devices installed to relieve transmission grid congestion. We limit our selection of FACTS devices to Series Compensation (SC) devices that can be represented by modification of the inductance of transmission lines. Our master optimization problem minimizes the l1 norm of the inductance modification subject to the usual line thermal-limit constraints. We develop heuristics that reduce this non-convex optimization to a succession of Linear Programs (LP) which are accelerated further using cutting plane methods. The algorithm solves an instance of the MatPower Polishmore »Grid model (3299 lines and 2746 nodes) in 40 seconds per iteration on a standard laptop—a speed up that allows the sizing and placement of a family of SC devices to correct a large set of anticipated congestions. We observe that our algorithm finds feasible solutions that are always sparse, i.e., SC devices are placed on only a few lines. In a companion manuscript, we demonstrate our approach on realistically-sized networks that suffer congestion from a range of causes including generator retirement. In this manuscript, we focus on the development of our approach, investigate its structure on a small test system subject to congestion from uniform load growth, and demonstrate computational efficiency on a realistically-sized network.« less

  20. Efficient Algorithm for Locating and Sizing Series Compensation Devices in Large Transmission Grids: Model Implementation (PART 1)

    SciTech Connect (OSTI)

    Frolov, Vladimir; Backhaus, Scott N.; Chertkov, Michael

    2014-01-14

    We explore optimization methods for planning the placement, sizing and operations of Flexible Alternating Current Transmission System (FACTS) devices installed to relieve transmission grid congestion. We limit our selection of FACTS devices to Series Compensation (SC) devices that can be represented by modification of the inductance of transmission lines. Our master optimization problem minimizes the l1 norm of the inductance modification subject to the usual line thermal-limit constraints. We develop heuristics that reduce this non-convex optimization to a succession of Linear Programs (LP) which are accelerated further using cutting plane methods. The algorithm solves an instance of the MatPower Polish Grid model (3299 lines and 2746 nodes) in 40 seconds per iteration on a standard laptop—a speed up that allows the sizing and placement of a family of SC devices to correct a large set of anticipated congestions. We observe that our algorithm finds feasible solutions that are always sparse, i.e., SC devices are placed on only a few lines. In a companion manuscript, we demonstrate our approach on realistically-sized networks that suffer congestion from a range of causes including generator retirement. In this manuscript, we focus on the development of our approach, investigate its structure on a small test system subject to congestion from uniform load growth, and demonstrate computational efficiency on a realistically-sized network.

  1. Efficient Algorithm for Locating and Sizing Series Compensation Devices in Large Transmission Grids: Solutions and Applications (PART II)

    SciTech Connect (OSTI)

    Frolov, Vladimir; Backhaus, Scott N.; Chertkov, Michael

    2014-01-14

    In a companion manuscript, we developed a novel optimization method for placement, sizing, and operation of Flexible Alternating Current Transmission System (FACTS) devices to relieve transmission network congestion. Specifically, we addressed FACTS that provide Series Compensation (SC) via modification of line inductance. In this manuscript, this heuristic algorithm and its solutions are explored on a number of test cases: a 30-bus test network and a realistically-sized model of the Polish grid (~2700 nodes and ~3300 lines). The results on the 30-bus network are used to study the general properties of the solutions including non-locality and sparsity. The Polish grid is used as a demonstration of the computational efficiency of the heuristics that leverages sequential linearization of power flow constraints and cutting plane methods that take advantage of the sparse nature of the SC placement solutions. Using these approaches, the algorithm is able to solve an instance of Polish grid in tens of seconds. We explore the utility of the algorithm by analyzing transmission networks congested by (a) uniform load growth, (b) multiple overloaded configurations, and (c) sequential generator retirements

  2. Efficient algorithm for locating and sizing series compensation devices in large power transmission grids: II. Solutions and applications

    SciTech Connect (OSTI)

    Frolov, Vladimir; Backhaus, Scott; Chertkov, Misha

    2014-10-01

    In a companion manuscript, we developed a novel optimization method for placement, sizing, and operation of Flexible Alternating Current Transmission System (FACTS) devices to relieve transmission network congestion. Specifically, we addressed FACTS that provide Series Compensation (SC) via modification of line inductance. In this manuscript, this heuristic algorithm and its solutions are explored on a number of test cases: a 30-bus test network and a realistically-sized model of the Polish grid (~ 2700 nodes and ~ 3300 lines). The results on the 30-bus network are used to study the general properties of the solutions including non-locality and sparsity. The Polish grid is used as a demonstration of the computational efficiency of the heuristics that leverages sequential linearization of power flow constraints and cutting plane methods that take advantage of the sparse nature of the SC placement solutions. Using these approaches, the algorithm is able to solve an instance of Polish grid in tens of seconds. We explore the utility of the algorithm by analyzing transmission networks congested by (a) uniform load growth, (b) multiple overloaded configurations, and (c) sequential generator retirements.

  3. Efficient algorithm for locating and sizing series compensation devices in large power transmission grids: II. Solutions and applications

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

    Frolov, Vladimir; Backhaus, Scott; Chertkov, Misha

    2014-10-01

    In a companion manuscript, we developed a novel optimization method for placement, sizing, and operation of Flexible Alternating Current Transmission System (FACTS) devices to relieve transmission network congestion. Specifically, we addressed FACTS that provide Series Compensation (SC) via modification of line inductance. In this manuscript, this heuristic algorithm and its solutions are explored on a number of test cases: a 30-bus test network and a realistically-sized model of the Polish grid (~ 2700 nodes and ~ 3300 lines). The results on the 30-bus network are used to study the general properties of the solutions including non-locality and sparsity. The Polishmore »grid is used as a demonstration of the computational efficiency of the heuristics that leverages sequential linearization of power flow constraints and cutting plane methods that take advantage of the sparse nature of the SC placement solutions. Using these approaches, the algorithm is able to solve an instance of Polish grid in tens of seconds. We explore the utility of the algorithm by analyzing transmission networks congested by (a) uniform load growth, (b) multiple overloaded configurations, and (c) sequential generator retirements.« less

  4. Analysis and synthesis of the variability of irradiance and PV power time series with the wavelet transform

    SciTech Connect (OSTI)

    Perpinan, O.; Lorenzo, E.

    2011-01-15

    The irradiance fluctuations and the subsequent variability of the power output of a PV system are analysed with some mathematical tools based on the wavelet transform. It can be shown that the irradiance and power time series are nonstationary process whose behaviour resembles that of a long memory process. Besides, the long memory spectral exponent {alpha} is a useful indicator of the fluctuation level of a irradiance time series. On the other side, a time series of global irradiance on the horizontal plane can be simulated by means of the wavestrapping technique on the clearness index and the fluctuation behaviour of this simulated time series correctly resembles the original series. Moreover, a time series of global irradiance on the inclined plane can be simulated with the wavestrapping procedure applied over a signal previously detrended by a partial reconstruction with a wavelet multiresolution analysis, and, once again, the fluctuation behaviour of this simulated time series is correct. This procedure is a suitable tool for the simulation of irradiance incident over a group of distant PV plants. Finally, a wavelet variance analysis and the long memory spectral exponent show that a PV plant behaves as a low-pass filter. (author)

  5. TiP: Analyzing Periodic Time Series Patterns Thomas Bernecker, Hans-Peter Kriegel, Peer Kroger, and Matthias Renz

    E-Print Network [OSTI]

    Kriegel, Hans-Peter

    , evolution of stock charts, research on medical behavior of organisms, or analysis and detec- tion of motion of environmental data. 1 Introduction In a large range of application domains, e.g. environmental analysis series. Overall, TiP serves as a framework to effectively and efficiently manage dual- domain time series

  6. A case study of an expert mathematics teacher's interactive decision-making system using physiological and behavioral time series data 

    E-Print Network [OSTI]

    Jensen, Deborah Larkey

    2005-02-17

    . The mean and standard deviation of observable decision-action rates on teacher-identified ?teaching days? were higher than the rates on ?guiding? days. Bivariate time series analysis of decision-action rates and physiological response rates showed a...

  7. Precursory signatures of protein folding/unfolding: From time series correlation analysis to atomistic mechanisms

    SciTech Connect (OSTI)

    Hsu, P. J.; Lai, S. K., E-mail: sklai@coll.phy.ncu.edu.tw [Complex Liquids Laboratory, Department of Physics, National Central University, Chungli 320 Taiwan (China); Molecular Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, Taipei 115, Taiwan (China); Cheong, S. A. [Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371 (Singapore)

    2014-05-28

    Folded conformations of proteins in thermodynamically stable states have long lifetimes. Before it folds into a stable conformation, or after unfolding from a stable conformation, the protein will generally stray from one random conformation to another leading thus to rapid fluctuations. Brief structural changes therefore occur before folding and unfolding events. These short-lived movements are easily overlooked in studies of folding/unfolding for they represent momentary excursions of the protein to explore conformations in the neighborhood of the stable conformation. The present study looks for precursory signatures of protein folding/unfolding within these rapid fluctuations through a combination of three techniques: (1) ultrafast shape recognition, (2) time series segmentation, and (3) time series correlation analysis. The first procedure measures the differences between statistical distance distributions of atoms in different conformations by calculating shape similarity indices from molecular dynamics simulation trajectories. The second procedure is used to discover the times at which the protein makes transitions from one conformation to another. Finally, we employ the third technique to exploit spatial fingerprints of the stable conformations; this procedure is to map out the sequences of changes preceding the actual folding and unfolding events, since strongly correlated atoms in different conformations are different due to bond and steric constraints. The aforementioned high-frequency fluctuations are therefore characterized by distinct correlational and structural changes that are associated with rate-limiting precursors that translate into brief segments. Guided by these technical procedures, we choose a model system, a fragment of the protein transthyretin, for identifying in this system not only the precursory signatures of transitions associated with ? helix and ? hairpin, but also the important role played by weaker correlations in such protein folding dynamics.

  8. Experimental nonlinear dynamical studies in cesium magneto-optical trap using time-series analysis

    SciTech Connect (OSTI)

    Anwar, M. Islam, R.; Faisal, M.; Sikandar, M.; Ahmed, M.

    2015-03-30

    A magneto-optical trap of neutral atoms is essentially a dissipative quantum system. The fast thermal atoms continuously dissipate their energy to the environment via spontaneous emissions during the cooling. The atoms are, therefore, strongly coupled with the vacuum reservoir and the laser field. The vacuum fluctuations as well as the field fluctuations are imparted to the atoms as random photon recoils. Consequently, the external and internal dynamics of atoms becomes stochastic. In this paper, we have investigated the stochastic dynamics of the atoms in a magneto-optical trap during the loading process. The time series analysis of the fluorescence signal shows that the dynamics of the atoms evolves, like all dissipative systems, from deterministic to the chaotic regime. The subsequent disappearance and revival of chaos was attributed to chaos synchronization between spatially different atoms in the magneto-optical trap.

  9. Forecasting of preprocessed daily solar radiation time series using neural networks

    SciTech Connect (OSTI)

    Paoli, Christophe; Muselli, Marc; Nivet, Marie-Laure [University of Corsica, CNRS UMR SPE, Corte (France); Voyant, Cyril [University of Corsica, CNRS UMR SPE, Corte (France); Hospital of Castelluccio, Radiotherapy Unit, Ajaccio (France)

    2010-12-15

    In this paper, we present an application of Artificial Neural Networks (ANNs) in the renewable energy domain. We particularly look at the Multi-Layer Perceptron (MLP) network which has been the most used of ANNs architectures both in the renewable energy domain and in the time series forecasting. We have used a MLP and an ad hoc time series pre-processing to develop a methodology for the daily prediction of global solar radiation on a horizontal surface. First results are promising with nRMSE {proportional_to} 21% and RMSE {proportional_to} 3.59 MJ/m{sup 2}. The optimized MLP presents predictions similar to or even better than conventional and reference methods such as ARIMA techniques, Bayesian inference, Markov chains and k-Nearest-Neighbors. Moreover we found that the data pre-processing approach proposed can reduce significantly forecasting errors of about 6% compared to conventional prediction methods such as Markov chains or Bayesian inference. The simulator proposed has been obtained using 19 years of available data from the meteorological station of Ajaccio (Corsica Island, France, 41 55'N, 8 44'E, 4 m above mean sea level). The predicted whole methodology has been validated on a 1.175 kWc mono-Si PV power grid. Six prediction methods (ANN, clear sky model, combination..) allow to predict the best daily DC PV power production at horizon d + 1. The cumulated DC PV energy on a 6-months period shows a great agreement between simulated and measured data (R{sup 2} > 0.99 and nRMSE < 2%). (author)

  10. The effect of congestion location on motorists' propensity to divert in response to real-time information 

    E-Print Network [OSTI]

    Jeyapaul, Anand

    1992-01-01

    to Real-Time Information. (December 1992) Anand Jeyapaul, B. Tech. , Indian Institute of Technology Chair of Advisory Committee: Dr. Conrad L. Dudek A work-based telephone survey of commuters in Dallas was done primarily to study if the motorists... such as age, sex, average travel time, and importance of arriving at work on time. Using the survey, motorist time savings values were obtained for four hypothetical radio traffic advisory messages, designed to vary alternative route and congestion location...

  11. Iterative prediction of chaotic time series using a recurrent neural network. Quarterly progress report, January 1, 1995--March 31, 1995

    SciTech Connect (OSTI)

    Bodruzzaman, M.; Essawy, M.A.

    1996-03-31

    Chaotic systems are known for their unpredictability due to their sensitive dependence on initial conditions. When only time series measurements from such systems are available, neural network based models are preferred due to their simplicity, availability, and robustness. However, the type of neural network used should be capable of modeling the highly non-linear behavior and the multi- attractor nature of such systems. In this paper we use a special type of recurrent neural network called the ``Dynamic System Imitator (DSI)``, that has been proven to be capable of modeling very complex dynamic behaviors. The DSI is a fully recurrent neural network that is specially designed to model a wide variety of dynamic systems. The prediction method presented in this paper is based upon predicting one step ahead in the time series, and using that predicted value to iteratively predict the following steps. This method was applied to chaotic time series generated from the logistic, Henon, and the cubic equations, in addition to experimental pressure drop time series measured from a Fluidized Bed Reactor (FBR), which is known to exhibit chaotic behavior. The time behavior and state space attractor of the actual and network synthetic chaotic time series were analyzed and compared. The correlation dimension and the Kolmogorov entropy for both the original and network synthetic data were computed. They were found to resemble each other, confirming the success of the DSI based chaotic system modeling.

  12. UCF Human Resources Procedure Break Times and Locations for Nursing Mothers

    E-Print Network [OSTI]

    Wu, Shin-Tson

    -workers, the public, or security cameras. The room should be sanitary, located near a sink with running water The Patient Protection and Affordable Care Act (PPACA) amended Section 7 of the Fair Labor Standards Act (FLSA

  13. Assessment of Time-Series MODIS Data for Cropland Mapping in the U.S. Central Great Plains

    E-Print Network [OSTI]

    Masialeti, Iwake

    2008-07-23

    .1 Introduction 141 4.2 Research Objectives 143 4.3 Study Area 144 4.4 Data and Methods 145 4.4.1 Time-Series MODIS NDVI Data 146 4.4.2 Common Land Unit (CLU) and Field Site Database for 2005 147 4.4.3 Kansas Average NDVI... because it is expensive to collect, inadequate in spatial and temporal coverage, inadvertently inaccurate, outdated, legally restricted, or non-existent; 2) Evaluate the applicability of time-series MODIS 250-m NDVI data for crop-type discrimination...

  14. A Scientific Data Processing Framework for Time Series NetCDF Data

    SciTech Connect (OSTI)

    Gaustad, Krista L.; Shippert, Timothy R.; Ermold, Brian D.; Beus, Sherman J.; Daily, Jeffrey A.; Borsholm, Atle; Fox, Kevin M.

    2014-10-01

    ARM Data Integrator (ADI) is a framework to streamline the development of scientific algorithms that analyze time-series NetCDF data, and to improve the content and consistency of the output data products produced by these algorithms. ADI achieves these goals by automating the process of retrieving and preparing data for analysis, supporting the definition of output data products through a graphical interface, and providing a modular, flexible software development architecture. The input data, preprocessing, and output data specifications are defined through a graphical interface and stored in a database. ADI also includes a workflow for data integration, a library of software modules to support the workflow, and a source code generator that produces C, IDL and Python templates. Data preparation support includes automated retrieval of data from input files, merging the retrieved data into appropriately sized chunks, and transformation of the data onto a common coordinate system grid. Through the graphical interface, users can view the details of both their data products and those in the ARM catalog. The variable and attribute definitions of the existing data products can be used to build new output data products. In addition, the rules that make up the ARM archive’s data standards are laid on top of the view of the new data product providing the user with a visual cue indicating where their output violates an archive standard. The necessary configurations are stored in a database that is accessed by the ADI libraries. This paper discusses the ADI framework, its supporting components, and how ADI can significantly decrease the time and cost of implementing scientific algorithms while improving the ability of scientists to disseminate their results.

  15. The prediction of bus arrival time using Automatic Vehicle Location Systems data 

    E-Print Network [OSTI]

    Jeong, Ran Hee

    2005-02-17

    Model and Real-time Service Model................................................187 6.4 CONCLUDING REMARKS.......................................................................189 VII CONCLUSIONS... (Weekday Evening) ........................................................182 FIGURE 6-19 Process of Real-Time Prediction.........................................................184 FIGURE 6-20 Real-time Prediction Model vs. Real-time Service...

  16. Validation of Danish wind time series from a new global renewable energy atlas for energy system analysis

    E-Print Network [OSTI]

    Andresen, Gorm Bruun; Greiner, Martin

    2014-01-01

    We present a new global high-resolution renewable energy atlas (REatlas) that can be used to calculate customised hourly time series of wind and solar PV power generation. In this paper, the atlas is applied to produce 32-year-long hourly model wind power time series for Denmark for each historical and future year between 1980 and 2035. These are calibrated and validated against real production data from the period 2000 to 2010. The high number of years allows us to discuss how the characteristics of Danish wind power generation varies between individual weather years. As an example, the annual energy production is found to vary by $\\pm10\\%$ from the average. Furthermore, we show how the production pattern change as small onshore turbines are gradually replaced by large onshore and offshore turbines. In most energy system analysis tools, fixed hourly time series of wind power generation are used to model future power systems with high penetrations of wind energy. Here, we compare the wind power time series fo...

  17. How Representative is a Time Series Derived from a A Study at a Low Accumulation Site on the Antarctic

    E-Print Network [OSTI]

    Percival, Don

    signal. We find that common signals in electrical records have time scales of approxi- mately 1­3 years of Washington, Seattle, WA 98195­ 5640, USA #12;Abstract The acquisition and interpretation of increasingly high series of electrical and oxygen isotope mea- surements from a spatial array of firn cores with 3.5­7 km

  18. IGR For GR/M76881/01: Generating Summaries of Time-Series Data (SumTime) Background/Context

    E-Print Network [OSTI]

    Sripada, Yaji

    of numerical time-series data. The modern world is being flooded with such data. For example, a typical gas-turbine worked in three domains: weather forecasts, summaries of gas-turbine sensor data, and summaries of sensor number of input data values; this meant it could not be used in our hospital and gas-turbine domains

  19. LAMORE: A Stable, Scalable Approach to Latent Vector Autoregressive Modeling of Categorical Time Series

    E-Print Network [OSTI]

    Kaski, Samuel

    Series Yubin Park1 Carlos M. Carvalho2 Joydeep Ghosh1 1 Department of Electrical Computer Engineering by the authors. In the fraud detection community, purchase records and click streams have been key factors: interpretability and extensibility. Indeed, the VAR process has a rich history with parsimonious the- oretical

  20. Geospatial analysis of vulnerable beach-foredune systems from decadal time series of lidar data

    E-Print Network [OSTI]

    Mitasova, Helena

    to quantify elevation change trends, map dynamic and stable locations, identify new and lost buildings surface elevation, and homes built within the shoreline dynamics band have already been lost. The raster 2003), including assessment of major storm and hurricane impacts (Sallenger et al. 2006). The high

  1. SPE-170680-MS Predicting Failures from Oilfield Sensor Data using Time Series Shapelets

    E-Print Network [OSTI]

    Hwang, Kai

    with several Electrical Submersible Pumps (ESPs), each instrumented with sensors that continually measure of Petroleum Engineers, its officers, or members. Electronic reproduction, distribution, or storage of any part electrical properties of the pump (the streams of sensor data), which are then relayed to a central location

  2. An Approach to Generating Summaries of Time Series Data in the Gas Turbine Domain Jin Yu and Jim Hunter and Ehud Reiter and Somayajulu Sripada

    E-Print Network [OSTI]

    Sripada, Yaji

    An Approach to Generating Summaries of Time Series Data in the Gas Turbine Domain Jin Yu and Jim an approach to generating summaries of time series data in the gas turbine domain using AI techniques. Through), both domain knowledge from experts about how to solve problems in the gas turbine and information about

  3. Social media affects the timing, location, and severity of school shootings

    E-Print Network [OSTI]

    Garcia-Bernardo, J; Shultz, J M; Cohen, A M; Johnson, N F; Dodds, P S

    2015-01-01

    Over the past two decades, school shootings within the United States have repeatedly devastated communities and shaken public opinion. Many of these attacks appear to be `lone wolf' ones driven by specific individual motivations, and the identification of precursor signals and hence actionable policy measures would thus seem highly unlikely. Here, we take a system wide view and investigate the timing of school attacks and the dynamical feedback with social media. We identify a trend divergence in which college attacks have continued to accelerate over the last 25 years while those carried out on K-12 schools have slowed down. We establish the copycat effect in school shootings and uncover a statistical association between social media chatter and the probability of an attack in the following days. While hinting at causality, this relationship may also help mitigate the frequency and intensity of future attacks.

  4. A study of the effect of nonrandom sampling on the estimation of exposure variability using exposure-time series from the OSHA IMIS health inspection database

    SciTech Connect (OSTI)

    Martinez, L.T.

    1997-05-01

    The objective of this study was to determine the effect of nonrandom sampling over time may have on the estimation of variability, namely the geometric standard deviation, using time series of personal exposure data.

  5. Focusing Waves at Arbitrary Locations in a Ray-Chaotic Enclosure Using Time-Reversed Synthetic Sonas

    E-Print Network [OSTI]

    Bo Xiao; Thomas M. Antonsen; Edward Ott; Steven M. Anlage

    2015-06-30

    Time reversal methods are widely used to achieve wave focusing in acoustics and electromagnetics. A typical time reversal experiment requires that a transmitter be initially present at the target focusing point, which limits the application of this technique. In this paper, we propose a method to focus waves at an arbitary location inside a complex enclosure using a numerically calculated wave excitation signal. We use a semi-classical ray algorithm to calculate the signal that would be received at a transceiver port resulting from the injection of a short pulse at the desired target location. The time-reversed version of this signal is then injected into the transceiver port and an approximate reconstruction of the short pulse is created at the target. The quaility of the pulse reconstruction is quantified in three different ways and the values of these metrics are predicted by the statistics of the scattering-parameter $|S_{21}|^2$ between the transceiver and target points in the enclosure. We experimentally demonstrate the method using a flat microwave billiard and quantify the reconstruction quality as a function of enclosure loss, port coupling and other considerations.

  6. VisIO: enabling interactive visualization of ultra-scale, time-series data via high-bandwidth distributed I/O systems

    SciTech Connect (OSTI)

    Mitchell, Christopher J; Ahrens, James P; Wang, Jun

    2010-10-15

    Petascale simulations compute at resolutions ranging into billions of cells and write terabytes of data for visualization and analysis. Interactive visuaUzation of this time series is a desired step before starting a new run. The I/O subsystem and associated network often are a significant impediment to interactive visualization of time-varying data; as they are not configured or provisioned to provide necessary I/O read rates. In this paper, we propose a new I/O library for visualization applications: VisIO. Visualization applications commonly use N-to-N reads within their parallel enabled readers which provides an incentive for a shared-nothing approach to I/O, similar to other data-intensive approaches such as Hadoop. However, unlike other data-intensive applications, visualization requires: (1) interactive performance for large data volumes, (2) compatibility with MPI and POSIX file system semantics for compatibility with existing infrastructure, and (3) use of existing file formats and their stipulated data partitioning rules. VisIO, provides a mechanism for using a non-POSIX distributed file system to provide linear scaling of 110 bandwidth. In addition, we introduce a novel scheduling algorithm that helps to co-locate visualization processes on nodes with the requested data. Testing using VisIO integrated into Para View was conducted using the Hadoop Distributed File System (HDFS) on TACC's Longhorn cluster. A representative dataset, VPIC, across 128 nodes showed a 64.4% read performance improvement compared to the provided Lustre installation. Also tested, was a dataset representing a global ocean salinity simulation that showed a 51.4% improvement in read performance over Lustre when using our VisIO system. VisIO, provides powerful high-performance I/O services to visualization applications, allowing for interactive performance with ultra-scale, time-series data.

  7. On the potential value of Ca II K spectroheliogram time-series for solar activity and irradiance studies

    E-Print Network [OSTI]

    I. Ermolli; S. K. Solanki; A. G. Tlatov; N. A. Krivova; R. K. Ulrich; J. Singh

    2008-02-26

    Various observatories around the globe started regular full-disk imaging of the solar atmosphere in the Ca II K line since the early decades of the 20th century. The archives made by these observations have the potential of providing far more detailed information on solar magnetism than just the sunspot number and area records to which most studies of solar activity and irradiance changes are restricted. We evaluate the image contents of three Ca II K spectroheliogram time-series, specifically those obtained by the digitization of the Arcetri, Kodaikanal, and Mt Wilson photographic archives. We describe the main problems afflicting these data and analyze their quality by expressing the image contents through several quantities. We compare the results obtained with those for similar present-day observations taken with the Meudon spectroheliograph and with the Rome-PSPT. We show that historic data suffer from stronger geometrical distortions and photometric uncertainties than similar present-day observations. The latter uncertainties mostly originate from the photographic calibration of the original data and from stray-light effects. We also show that the image contents of the three analyzed series vary in time. These variations are probably due to instrument changes and aging of the spectrographs used, as well as changes of the observing programs. Our results imply that the main challenge for the analysis of historic data is their accurate photometric calibration. This problem must be solved before they can provide reliable information about solar magnetism and activity over the last century. Moreover, inter-calibration of results obtained from independent time-series is required to reliably trace changes of solar properties with time from the analysis of such data.

  8. Time series analysis of the lead-lag relationship of freight futures and spot market prices

    E-Print Network [OSTI]

    Gavriilidis, Nikolaos

    2008-01-01

    This thesis analyzes the relationship between the physical and paper shipping markets. The main objective is to find if one market leads the other by a specific time period so that market players can take advantage from ...

  9. IMPROVED SEMI-PARAMETRIC TIME SERIES MODELS OF AIR POLLUTION AND MORTALITY

    E-Print Network [OSTI]

    Hastie, Trevor

    we provide improvements in semi-parametric regression directly relevant to risk estimation in time of an intense national debate, that has led to a high profile research agenda (National Research Council, 1998, 1999, 2001). In the United States and elsewhere, evidence

  10. Identification of mixing effects in stratified chilled-water storage tanks by analysis of time series temperature data

    SciTech Connect (OSTI)

    Caldwell, J.S.; Bahnfleth, W.P.

    1998-12-31

    Several one-dimensional models of mixing in stratified chilled-water thermal energy storage tanks have been proposed. In the simplest models, mixing is assumed to be uniform throughout the tank. Other models permit spatial variation of mixing intensity. Published models were developed by adjusting model parameters to achieve qualitative agreement with measured profiles. The literature does not describe quantitative criteria for evaluating the performance of mixing models. This paper describes a method that can be used to determine the relative spatial distribution of mixing effects directly from experimental data. It also illustrates a method for quantitative comparison of experimental and modeled temperature profiles. The mixing calculation procedure may be applied to instantaneous spatial temperature data if temperature sensor spacing is sufficiently small. When sensors are widely spaced, time series data taken at individual sensors provide better accuracy. A criterion for maximum sensor spacing is proposed. The application of these procedures to time series charge-cycle operating data from a full-scale chilled-water thermal storage system serving a large medical center is described. Results of this analysis indicate that mixing is localized near the inlet diffuser and that one-dimensional flow with streamwise conduction predominates in most of the tank.

  11. Maximum likelihood parameter estimation in time series models using sequential Monte Carlo

    E-Print Network [OSTI]

    Yildirim, Sinan

    2013-06-11

    , respectively. This approach is useful to handle the case where the columns of Y are generated sequentially in time, such as in audio signal processing. Usually very large number of columns in Y leads to the necessity of online algorithms to learn the model... .6 (dashed lines). For illustrative purposes, every 1000th estimate is shown . . . . . . . . . . . . . . . . . . . . . . . 130 6.1 Histograms of Monte Carlo estimates of gradients of log p?,?,?? (Y ?,?,?) w.r.t. the parameters of the ?-stable distribution...

  12. Time series analysis of AERI radiances for GCM testing and improvement

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week DayDr.Theories (Journal Article)Clean4, 9/26/14),Time

  13. Implementing a time- and location-differentiated cap-and-trade program : flexible nitrogen oxide abatement from power plants in the eastern United States

    E-Print Network [OSTI]

    Martin, Katherine C

    2007-01-01

    Studies suggest that timing and location of emissions can change the amount of ozone formed from a given amount of nitrogen oxide (NOx) by a factor of five (Mauzerall et al. 2005). Yet existing NOx cap-and-trade programs ...

  14. Characterizing Multi-Scale Self-Similar Behavior and Non-Statistical Properties of Financial Time Series

    E-Print Network [OSTI]

    Ghosh, Sayantan; Panigrahi, Prasanta K

    2010-01-01

    We make use of wavelet transform to study the multi-scale, self similar behavior and deviations thereof, in the stock prices of large companies, belonging to different economic sectors. The stock market returns exhibit multi-fractal characteristics, with some of the companies showing deviations at small and large scales. The fact that, the wavelets belonging to the Daubechies' (Db) basis enables one to isolate local polynomial trends of different degrees, plays the key role in isolating fluctuations at different scales. We make use of Db4 and Db6 basis sets to respectively isolate local linear and quadratic trends at different scales in order to study the statistical characteristics of these financial time series. The fluctuations reveal fat tail non-Gaussian behavior, unstable periodic modulations, at finer scales, from which the characteristic $k^{-3}$ power law behavior emerges at sufficiently large scales. We further identify stable periodic behavior through the continuous Morlet wavelet.

  15. Prediction of global solar irradiance based on time series analysis: Application to solar thermal power plants energy production planning

    SciTech Connect (OSTI)

    Martin, Luis; Marchante, Ruth; Cony, Marco; Zarzalejo, Luis F.; Polo, Jesus; Navarro, Ana

    2010-10-15

    Due to strong increase of solar power generation, the predictions of incoming solar energy are acquiring more importance. Photovoltaic and solar thermal are the main sources of electricity generation from solar energy. In the case of solar thermal energy plants with storage energy system, its management and operation need reliable predictions of solar irradiance with the same temporal resolution as the temporal capacity of the back-up system. These plants can work like a conventional power plant and compete in the energy stock market avoiding intermittence in electricity production. This work presents a comparisons of statistical models based on time series applied to predict half daily values of global solar irradiance with a temporal horizon of 3 days. Half daily values consist of accumulated hourly global solar irradiance from solar raise to solar noon and from noon until dawn for each day. The dataset of ground solar radiation used belongs to stations of Spanish National Weather Service (AEMet). The models tested are autoregressive, neural networks and fuzzy logic models. Due to the fact that half daily solar irradiance time series is non-stationary, it has been necessary to transform it to two new stationary variables (clearness index and lost component) which are used as input of the predictive models. Improvement in terms of RMSD of the models essayed is compared against the model based on persistence. The validation process shows that all models essayed improve persistence. The best approach to forecast half daily values of solar irradiance is neural network models with lost component as input, except Lerida station where models based on clearness index have less uncertainty because this magnitude has a linear behaviour and it is easier to simulate by models. (author)

  16. Time series association learning

    DOE Patents [OSTI]

    Papcun, George J. (Santa Fe, NM)

    1995-01-01

    An acoustic input is recognized from inferred articulatory movements output by a learned relationship between training acoustic waveforms and articulatory movements. The inferred movements are compared with template patterns prepared from training movements when the relationship was learned to regenerate an acoustic recognition. In a preferred embodiment, the acoustic articulatory relationships are learned by a neural network. Subsequent input acoustic patterns then generate the inferred articulatory movements for use with the templates. Articulatory movement data may be supplemented with characteristic acoustic information, e.g. relative power and high frequency data, to improve template recognition.

  17. Model-Based Clustering of Regression Time Series Data via APECM -- An AECM Algorithm Sung to an Even Faster Beat

    SciTech Connect (OSTI)

    Chen, Wei-Chen [ORNL; Maitra, Ranjan [Iowa State University

    2011-01-01

    We propose a model-based approach for clustering time series regression data in an unsupervised machine learning framework to identify groups under the assumption that each mixture component follows a Gaussian autoregressive regression model of order p. Given the number of groups, the traditional maximum likelihood approach of estimating the parameters using the expectation-maximization (EM) algorithm can be employed, although it is computationally demanding. The somewhat fast tune to the EM folk song provided by the Alternating Expectation Conditional Maximization (AECM) algorithm can alleviate the problem to some extent. In this article, we develop an alternative partial expectation conditional maximization algorithm (APECM) that uses an additional data augmentation storage step to efficiently implement AECM for finite mixture models. Results on our simulation experiments show improved performance in both fewer numbers of iterations and computation time. The methodology is applied to the problem of clustering mutual funds data on the basis of their average annual per cent returns and in the presence of economic indicators.

  18. A Bayesian method for characterizing distributed micro-releases: II. inference under model uncertainty with short time-series data.

    SciTech Connect (OSTI)

    Marzouk, Youssef; Fast P. (Lawrence Livermore National Laboratory, Livermore, CA); Kraus, M.; Ray, J. P.

    2006-01-01

    Terrorist attacks using an aerosolized pathogen preparation have gained credibility as a national security concern after the anthrax attacks of 2001. The ability to characterize such attacks, i.e., to estimate the number of people infected, the time of infection, and the average dose received, is important when planning a medical response. We address this question of characterization by formulating a Bayesian inverse problem predicated on a short time-series of diagnosed patients exhibiting symptoms. To be of relevance to response planning, we limit ourselves to 3-5 days of data. In tests performed with anthrax as the pathogen, we find that these data are usually sufficient, especially if the model of the outbreak used in the inverse problem is an accurate one. In some cases the scarcity of data may initially support outbreak characterizations at odds with the true one, but with sufficient data the correct inferences are recovered; in other words, the inverse problem posed and its solution methodology are consistent. We also explore the effect of model error-situations for which the model used in the inverse problem is only a partially accurate representation of the outbreak; here, the model predictions and the observations differ by more than a random noise. We find that while there is a consistent discrepancy between the inferred and the true characterizations, they are also close enough to be of relevance when planning a response.

  19. Jin Yu, Ehud Reiter, Jim Hunter and Chris Mellish Choosing the content of textual summaries of large time-series data sets

    E-Print Network [OSTI]

    Sripada, Yaji

    generates summaries of sensor data from a gas turbine. Table 1. Part of a sample of time series data describe and evaluate SumTime-Turbine, a prototype system which uses this architecture to generate textual summaries of sensor data from gas turbines. 1 Introduction It is often said in the NLP community

  20. Jin Yu, Ehud Reiter, Jim Hunter and Chris Mellish Choosing the content of textual summaries of large time-series data sets

    E-Print Network [OSTI]

    Reiter, Ehud

    describe and evaluate SumTime-Turbine, a prototype system which uses this architecture to generate textual summaries of sensor data from gas turbines. 1 Introduction It is often said in the NLP community simply from sensors in aircraft engines (Hey and Trefethen 2003). Currently numeric time-series data

  1. The Time of Our Lives

    E-Print Network [OSTI]

    Mellor, David Hugh

    2001-01-01

    The article shows how McTaggart’s distinction between A- and B-series ways of locating events in time prompted and enabled the twentieth century’s most important advances in the philosophy of time. It argues that, even if the B-series represents...

  2. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS--I: FUNDAMENTAL THEORY AND APPLICATIONS, VOL. 50, NO. 5, MAY 2003 663 Detecting Determinism in Time Series: The Method

    E-Print Network [OSTI]

    Tse, Chi K. "Michael"

    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS--I: FUNDAMENTAL THEORY AND APPLICATIONS, VOL. 50, NO. 5 that may be applied to determine whether an observed time series is inconsis- tent with a specific class to the residuals of nonlinear models is equiv- alent to fitting that model subject to an information theoretic

  3. Seminar Series: MAE Seminar, 2015 spring quarter Date and Time: 05/08/2015 -10:30 am11:30 am

    E-Print Network [OSTI]

    Mease, Kenneth D.

    In this seminar, I will first discuss our research results of photoelectrochemical generation of hydrogen some of my research into the design and development of quinoline-based organic semiconducting materialsSeminar Series: MAE Seminar, 2015 spring quarter Date and Time: 05/08/2015 - 10:30 am­11:30 am

  4. March 3, 2005 14:40 WSPC/Trim Size: 9in x 6in for Review Volume m-bickel04 EFFICIENT ESTIMATORS FOR TIME SERIES

    E-Print Network [OSTI]

    Schick, Anton

    ESTIMATORS FOR TIME SERIES Anton Schick Department of Mathematical Sciences, Binghamtom University Binghamton is semiparametric, with 1 #12;March 3, 2005 14:40 WSPC/Trim Size: 9in x 6in for Review Volume m-bickel04 2 A. Schick

  5. Using remote-sensing data to determine equilibrium-line altitude and mass-balance time series: validation on three French glaciers,

    E-Print Network [OSTI]

    Rabatel, Antoine

    Using remote-sensing data to determine equilibrium-line altitude and mass-balance time series to calculate glacier mass balance using remote-sensing data. Snowline measurements from remotely sensed images by ground measurements and remote sensing are compared and show excellent correlation (r2 > 0.89), both

  6. A time series approach for profiling attack Liran Lerman1,2 and Gianluca Bontempi2 and Souhaib Ben Taieb2 and Olivier Markowitch1

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    analysis, machine learning, time series classification. 1 Introduction Embedded devices such as smart cards operations allowing to secure, for example, bank transfers, buildings and cars. A modern bank card embeds securely a secret information allowing in fine to transfer cash. This operation is allowed by the smart

  7. Abstract--In this study, we analyzed a dataset of time-series vital-signs data collected by standard Propaq travel monitor

    E-Print Network [OSTI]

    Abstract--In this study, we analyzed a dataset of time-series vital-signs data collected combination of the automatically-collected and -qualified vital signs provides the best discrimination between of the vital-signs variables, and used the area under the receiver operating characteristic curve (ROC AUC

  8. MARINE ECOLOGY PROGRESS SERIES Mar Ecol Prog Ser

    E-Print Network [OSTI]

    Krug, Patrick J.

    MARINE ECOLOGY PROGRESS SERIES Mar Ecol Prog Ser Vol. 312: 149­159, 2006 Published April 24 therefore have limited time to locate and colonize a suitable adult habitat. Domi- nant spatial competitors consent of the publisher #12;Mar Ecol Prog Ser 312: 149­159, 2006 energy reserves, they became `desperate

  9. A combined method to estimate parameters of the thalamocortical model from a heavily noise-corrupted time series of action potential

    SciTech Connect (OSTI)

    Wang, Ruofan; Wang, Jiang; Deng, Bin Liu, Chen; Wei, Xile; Tsang, K. M.; Chan, W. L.

    2014-03-15

    A combined method composing of the unscented Kalman filter (UKF) and the synchronization-based method is proposed for estimating electrophysiological variables and parameters of a thalamocortical (TC) neuron model, which is commonly used for studying Parkinson's disease for its relay role of connecting the basal ganglia and the cortex. In this work, we take into account the condition when only the time series of action potential with heavy noise are available. Numerical results demonstrate that not only this method can estimate model parameters from the extracted time series of action potential successfully but also the effect of its estimation is much better than the only use of the UKF or synchronization-based method, with a higher accuracy and a better robustness against noise, especially under the severe noise conditions. Considering the rather important role of TC neuron in the normal and pathological brain functions, the exploration of the method to estimate the critical parameters could have important implications for the study of its nonlinear dynamics and further treatment of Parkinson's disease.

  10. A study of the utility of heat collectors in reducing the response time of automatic fire sprinklers located in production modules of Building 707

    SciTech Connect (OSTI)

    Shanley, J.H. Jr.; Budnick, E.K. Jr.

    1990-01-01

    Several of the ten production Modules in Building 707 at the Department of Energy Rocky Flats Plant recently underwent an alteration which can adversely affect the performance of the installed automatic fire sprinkler systems. The Modules have an approximate floor to ceiling height of 17.5 ft. The alterations involved removing the drop ceilings in the Modules which had been at a height of 12 ft above the floor. The sprinkler systems were originally installed with the sprinkler heads located below the drop ceiling in accordance with the nationally recognized NFPA 13, Standard for the Installation of Automatic Sprinkler Systems. The ceiling removal affects the sprinkler`s response time and also violates NFPA 13. The scope of this study included evaluation of the feasibility of utilizing heat collectors to reduce the delays in sprinkler response created by the removal of the drop ceilings. The study also includes evaluation of substituting quick response sprinklers for the standard sprinklers currently in place, in combination with a heat collector.

  11. 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.

  12. 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.

  13. Spot evolution on the red giant star XX Triangulum. A starspot-decay analysis based on time-series Doppler imaging

    E-Print Network [OSTI]

    Künstler, A; Strassmeier, K G

    2015-01-01

    Solar spots appear to decay linearly proportional to their size. The decay rate of solar spots is directly related to magnetic diffusivity, which itself is a key quantity for the length of a magnetic-activity cycle. Is a linear spot decay also seen on other stars, and is this in agreement with the large range of solar and stellar activity cycle lengths? We investigate the evolution of starspots on the rapidly-rotating ($P_{\\rm rot}$ $\\approx$ 24 d) K0 giant XX Tri, using consecutive time-series Doppler images. Our aim is to obtain a well-sampled movie of the stellar surface over many years, and thereby detect and quantify a starspot decay law for further comparison with the Sun. We obtained continuous high-resolution and phase-resolved spectroscopy with the 1.2-m robotic STELLA telescope on Tenerife over six years. For each observing season, we obtained between 5 to 7 independent Doppler images, one per stellar rotation, making up a total of 36 maps. To quantify starspot area decay and growth, we match the ob...

  14. TIME-SERIES PHOTOMETRY OF GLOBULAR CLUSTERS: M62 (NGC 6266), THE MOST RR LYRAE-RICH GLOBULAR CLUSTER IN THE GALAXY?

    SciTech Connect (OSTI)

    Contreras, R.; Catelan, M.; Smith, H. A.; Kuehn, C. A.; Pritzl, B. J.; Borissova, J.

    2010-12-15

    We present new time-series CCD photometry, in the B and V bands, for the moderately metal-rich ([Fe/H] {approx_equal} -1.3) Galactic globular cluster M62 (NGC 6266). The present data set is the largest obtained so far for this cluster and consists of 168 images per filter, obtained with the Warsaw 1.3 m telescope at the Las Campanas Observatory and the 1.3 m telescope of the Cerro Tololo Inter-American Observatory, in two separate runs over the time span of 3 months. The procedure adopted to detect the variable stars was the optimal image subtraction method (ISIS v2.2), as implemented by Alard. The photometry was performed using both ISIS and Stetson's DAOPHOT/ALLFRAME package. We have identified 245 variable stars in the cluster fields that have been analyzed so far, of which 179 are new discoveries. Of these variables, 133 are fundamental mode RR Lyrae stars (RRab), 76 are first overtone (RRc) pulsators, 4 are type II Cepheids, 25 are long-period variables (LPVs), 1 is an eclipsing binary, and 6 are not yet well classified. Such a large number of RR Lyrae stars places M62 among the top two most RR Lyrae-rich (in the sense of total number of RR Lyrae stars present) globular clusters known in the Galaxy, second only to M3 (NGC 5272) with a total of 230 known RR Lyrae stars. Since this study covers most but not all of the cluster area, it is not unlikely that M62 is in fact the most RR Lyrae-rich globular cluster in the Galaxy. In like vein, thanks to the time coverage of our data sets, we were also able to detect the largest sample of LPVs known so far in a Galactic globular cluster. We analyze a variety of Oosterhoff type indicators for the cluster, including mean periods, period distribution, Bailey diagrams, and Fourier decomposition parameters (as well as the physical parameters derived therefrom). All of these indicators clearly show that M62 is an Oosterhoff type I system. This is in good agreement with the moderately high metallicity of the cluster, in spite of its predominantly blue horizontal branch morphology-which is more typical of Oosterhoff type II systems. We thus conclude that metallicity plays a key role in defining Oosterhoff type. Finally, based on an application of the 'A-method', we conclude that the cluster RR Lyrae stars have a similar He abundance as M3, although more work on the temperatures of the M62 RR Lyrae is needed before this result can be conclusively established.

  15. VOLUME 76, NUMBER 18 P H Y S I C A L R E V I E W L E T T E R S 29 APRIL 1996 Nonlinear Control of Dynamical Systems from Time Series

    E-Print Network [OSTI]

    Showalter, Kenneth

    developments and experimental applications of feedback control to nonlinear dynamical systems [2­11]. Recent of Dynamical Systems from Time Series Valery Petrov and Kenneth Showalter* Department of Chemistry, West of multidimensional, nonlinear single-input single-output systems is formulated in terms of an invariant hypersurface

  16. Library Locations Locations other than Main Library

    E-Print Network [OSTI]

    Library Locations Locations other than Main Library Example: Feminist Studies HQ1410 .U54 2009 ............................................................2 Central Call Number Main Library Location Main Library Example: Main Library HQ1410 .U54 2009 See Center (ATC) Classroom 1575 Building Operations Main Entrance Map and Imagery Laboratory (MIL

  17. Library Locations Locations other than Main Library

    E-Print Network [OSTI]

    Library Locations Locations other than Main Library Example: Feminist Studies HQ1410 .U54 2009 these from the library catalog: www.library.ucsb.edu/depts/access/howinprocess.html Main: Items located in the Main Library, Davidson Main Serials Reading Area: 2 North Map & Imagery Lab: 1 North Media Collection

  18. Efficient Algorithm for Locating and Sizing Series Compensation...

    Office of Scientific and Technical Information (OSTI)

    Compensation Devices in Large Transmission Grids: Model Implementation We explore optimization methods for planning the placement, sizing and operations of Flexible Alternating...

  19. Efficient Algorithm for Locating and Sizing Series Compensation...

    Office of Scientific and Technical Information (OSTI)

    provided as a public service. Visit OSTI to utilize additional information resources in energy science and technology. A paper copy of this document is also available for sale to...

  20. Locative Inversion In Cantonese

    E-Print Network [OSTI]

    Mok, Sui-Sang

    1992-01-01

    This paper proposes that locative inversion is a widespread syntactic process in Cantonese. The sentence-initial locative phrases in the Locative Inversion sentences are argued to be subjects which come from the postverbal complement position...

  1. Fourier Series Autumn 2006

    E-Print Network [OSTI]

    Wehlau, David

    Math 421 Fourier Series Autumn 2006 Text: Fourier Series, by Rajendra Bhatia, Math. Assoc. of America, 2005. Topics Covered: ­ Ch. 1, Fourier series and the heat equation ­ Ch. 2, Convergence of Fourier series ­ Ch. 3, Sine and cosine series, arbitrary pe- riods, sin(x)/x, Gibbs's phenomenon ­ Ch. 4

  2. Fourier Series and Integrals Fourier Series

    E-Print Network [OSTI]

    Mehta, Pankaj

    Fourier Series and Integrals Fourier Series Let f(x) be a piecewise linear function on [-L, L(x) can be expanded in a Fourier series f(x) = a0 2 + n=1 an cos nx L + bn sin nx L , (1a) or schematic form of the Fourier series is f(x) = n (an^cn + bn^sn). (2) This emphasizes that the Fourier

  3. Accommodation Location(s) Cologne -Ehrenfeld.

    E-Print Network [OSTI]

    Molinari, Marc

    Accommodation Location(s) ­ Cologne - Ehrenfeld. Price of rent ­ Sub-let, cost roughly 300 euros a month inc bills. Organisation of accommodation/gas/electricity/internet/phones ­ Because I lived with Telekom for phone/internet as they just try to rip you off! Germany COLOGNE Language Assistantship Travel

  4. Method for tracking the location of mobile agents using stand-off detection technique

    DOE Patents [OSTI]

    Schmitt, Randal L. (Tijeras, NM); Bender, Susan Fae Ann (Tijeras, NM); Rodacy, Philip J. (Albuquerque, NM); Hargis, Jr., Philip J. (Albuquerque, NM); Johnson, Mark S. (Albuquerque, NM)

    2006-12-26

    A method for tracking the movement and position of mobile agents using light detection and ranging (LIDAR) as a stand-off optical detection technique. The positions of the agents are tracked by analyzing the time-history of a series of optical measurements made over the field of view of the optical system. This provides a (time+3-D) or (time+2-D) mapping of the location of the mobile agents. Repeated pulses of a laser beam impinge on a mobile agent, such as a bee, and are backscattered from the agent into a LIDAR detection system. Alternatively, the incident laser pulses excite fluorescence or phosphorescence from the agent, which is detected using a LIDAR system. Analysis of the spatial location of signals from the agents produced by repeated pulses generates a multidimensional map of agent location.

  5. This is the full version. An extended abstract to be presented in CANS 2014 Private and Dynamic Time-Series Data Aggregation

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    inputs collected through a smart metering network. The main shortcomings of this solution are its environment whereby data is produced by a set of users that hold smart meters. Smart meters can report accurately at specific time intervals energy, gas or water consumption. Considering electricity consumption

  6. WOMEN'S INTRAMURAL Sport Date/Time Location

    E-Print Network [OSTI]

    Boonstra, Rudy

    Football Mon. Sept 14 ­ 6pm-7:30pm Thurs. Sept 17 ­ 5:30pm-7pm Mon. Sept 21 ­ 5:30pm-7pm Valley Ice Hockey Outdoor Soccer Wed. Sept 9 ­ 5:30pm-7:30pm Mon. Sept 14 ­ 5:30pm-7:30pm Wed. Sept 16 ­ 5:30pm-7:30pm

  7. SPEAKERS, TITLES, TIMES and LOCATIONS Plenary Talks

    E-Print Network [OSTI]

    2012-06-20

    Jun 18, 2012 ... B.5 Hyundae Lee, Mathematical analysis of the anomalous localized ... D.8 Faouzi Triki, Vibration potential tomography, Tuesday, 4:00–4:30, ...

  8. MOBILE DEVICE LOCATION INFORMATION ACQUISITION FRAMEWORK FOR DEVELOPMENT OF LOCATION

    E-Print Network [OSTI]

    Dustdar, Schahram

    MOBILE DEVICE LOCATION INFORMATION ACQUISITION FRAMEWORK FOR DEVELOPMENT OF LOCATION INFORMATION, 1040 Vienna, Austria dustdar@infosys.tuwien.ac.at Keywords: Mobile device location information, location information based services, location information acquisition. Abstract: Mobile device location

  9. Method of locating underground mines fires

    DOE Patents [OSTI]

    Laage, Linneas (Eagam, MN); Pomroy, William (St. Paul, MN)

    1992-01-01

    An improved method of locating an underground mine fire by comparing the pattern of measured combustion product arrival times at detector locations with a real time computer-generated array of simulated patterns. A number of electronic fire detection devices are linked thru telemetry to a control station on the surface. The mine's ventilation is modeled on a digital computer using network analysis software. The time reguired to locate a fire consists of the time required to model the mines' ventilation, generate the arrival time array, scan the array, and to match measured arrival time patterns to the simulated patterns.

  10. Power Series Introduction

    E-Print Network [OSTI]

    Vickers, James

    Power Series 16.4 Introduction In this section we consider power series. These are examples of infinite series where each term contains a variable, x, raised to a positive integer power. We use the ratio test to obtain the radius of convergence R, of the power series and state the important result

  11. Optimal fault location 

    E-Print Network [OSTI]

    Knezev, Maja

    2008-10-10

    sequence of events newly obtained recording belongs. Software prototype of the proposed automated fault location analysis is developed using Java programming language. Fault location analysis is automatically triggered by appearance of new event files in a...

  12. Six-week time series of eddy covariance CO2 flux at Mammoth Mountain, California: performance evaluation and role of meteorological forcing

    SciTech Connect (OSTI)

    Lewicki, Jennifer; Lewicki, J.L.; Fischer, M.L.; Hilley, G.E.

    2007-10-15

    CO{sub 2} and heat fluxes were measured over a six-week period (09/08/2006 to 10/24/2006) by the eddy covariance (EC) technique at the Horseshoe Lake tree kill (HLTK), Mammoth Mountain, CA, a site with complex terrain and high, spatially heterogeneous CO{sub 2} emission rates. EC CO{sub 2} fluxes ranged from 218 to 3500 g m{sup -2} d{sup -1} (mean = 1346 g m{sup -2} d{sup -1}). Using footprint modeling, EC CO{sub 2} fluxes were compared to CO{sub 2} fluxes measured by the chamber method on a grid repeatedly over a 10-day period. Half-hour EC CO{sub 2} fluxes were moderately correlated (R{sup 2} = 0.42) with chamber fluxes, whereas average-daily EC CO{sub 2} fluxes were well correlated (R{sup 2} = 0.70) with chamber measurements. Average daily EC CO{sub 2} fluxes were correlated with both average daily wind speed and atmospheric pressure; relationships were similar to those observed between chamber CO{sub 2} fluxes and the atmospheric parameters over a comparable time period. Energy balance closure was assessed by statistical regression of EC energy fluxes (sensible and latent heat) against available energy (net radiation, less soil heat flux). While incomplete (R{sup 2} = 0.77 for 1:1 line), the degree of energy balance closure fell within the range observed in many investigations conducted in contrasting ecosystems and climates. Results indicate that despite complexities presented by the HLTK, EC can be reliably used to monitor background variations in volcanic CO{sub 2} fluxes associated with meteorological forcing, and presumably changes related to deeply derived processes such as volcanic activity.

  13. Reversible micromachining locator

    DOE Patents [OSTI]

    Salzer, L.J.; Foreman, L.R.

    1999-08-31

    This invention provides a device which includes a locator, a kinematic mount positioned on a conventional tooling machine, a part carrier disposed on the locator and a retainer ring. The locator has disposed therein a plurality of steel balls, placed in an equidistant position circumferentially around the locator. The kinematic mount includes a plurality of magnets which are in registry with the steel balls on the locator. In operation, a blank part to be machined is placed between a surface of a locator and the retainer ring (fitting within the part carrier). When the locator (with a blank part to be machined) is coupled to the kinematic mount, the part is thus exposed for the desired machining process. Because the locator is removably attachable to the kinematic mount, it can easily be removed from the mount, reversed, and reinserted onto the mount for additional machining. Further, the locator can likewise be removed from the mount and placed onto another tooling machine having a properly aligned kinematic mount. Because of the unique design and use of magnetic forces of the present invention, positioning errors of less than 0.25 micrometer for each machining process can be achieved. 7 figs.

  14. Series Packages MASTERWORKS

    E-Print Network [OSTI]

    Arnold, Jonathan

    Series Packages MASTERWORKS · Atlanta Symphony Orchestra and Chorus ­ September 20 · Atlanta PACKAGE · Includes all of the concerts on both the Masterworks and Classics series. Ten performances · This package includes all of the events on the Show Biz and Celebrity Evenings series. Ten performances in all

  15. Learning connections in financial time series

    E-Print Network [OSTI]

    Gartheeban, Ganeshapillai

    2014-01-01

    Much of modern financial theory is based upon the assumption that a portfolio containing a diversified set of equities can be used to control risk while achieving a good rate of return. The basic idea is to choose equities ...

  16. Exact Primitives for Time Series Data Mining

    E-Print Network [OSTI]

    Mueen, Abdullah Al

    2012-01-01

    on Knowledge discovery and data mining, KDD, pages 947–956,on Knowledge discovery and data mining, KDD ’11, pages [15]on Knowledge discovery and data mining, KDD ’03, pages 493–

  17. Text Queries on Document Time Series

    E-Print Network [OSTI]

    Baeza-Yates, Ricardo

    Retrieved for Query "iraq war" #12;Smoothed Timeline for "iraq war" #12;Temporal Models Goal: Estimate;Documents Retrieved for Query "iraq war" #12;Weighted by Document Relevance #12;Smoothed with Background

  18. Fiber optic sensor employing successively destroyed coupled points or reflectors for detecting shock wave speed and damage location

    DOE Patents [OSTI]

    Weiss, Jonathan D. (Albuquerque, NM)

    1995-01-01

    A shock velocity and damage location sensor providing a means of measuring shock speed and damage location. The sensor consists of a long series of time-of-arrival "points" constructed with fiber optics. The fiber optic sensor apparatus measures shock velocity as the fiber sensor is progressively crushed as a shock wave proceeds in a direction along the fiber. The light received by a receiving means changes as time-of-arrival points are destroyed as the sensor is disturbed by the shock. The sensor may comprise a transmitting fiber bent into a series of loops and fused to a receiving fiber at various places, time-of-arrival points, along the receiving fibers length. At the "points" of contact, where a portion of the light leaves the transmitting fiber and enters the receiving fiber, the loops would be required to allow the light to travel backwards through the receiving fiber toward a receiving means. The sensor may also comprise a single optical fiber wherein the time-of-arrival points are comprised of reflection planes distributed along the fibers length. In this configuration, as the shock front proceeds along the fiber it destroys one reflector after another. The output received by a receiving means from this sensor may be a series of downward steps produced as the shock wave destroys one time-of-arrival point after another, or a nonsequential pattern of steps in the event time-of-arrival points are destroyed at any point along the sensor.

  19. Fiber optic sensor employing successively destroyed coupled points or reflectors for detecting shock wave speed and damage location

    DOE Patents [OSTI]

    Weiss, J.D.

    1995-08-29

    A shock velocity and damage location sensor providing a means of measuring shock speed and damage location is disclosed. The sensor consists of a long series of time-of-arrival ``points`` constructed with fiber optics. The fiber optic sensor apparatus measures shock velocity as the fiber sensor is progressively crushed as a shock wave proceeds in a direction along the fiber. The light received by a receiving means changes as time-of-arrival points are destroyed as the sensor is disturbed by the shock. The sensor may comprise a transmitting fiber bent into a series of loops and fused to a receiving fiber at various places, time-of-arrival points, along the receiving fibers length. At the ``points`` of contact, where a portion of the light leaves the transmitting fiber and enters the receiving fiber, the loops would be required to allow the light to travel backwards through the receiving fiber toward a receiving means. The sensor may also comprise a single optical fiber wherein the time-of-arrival points are comprised of reflection planes distributed along the fibers length. In this configuration, as the shock front proceeds along the fiber it destroys one reflector after another. The output received by a receiving means from this sensor may be a series of downward steps produced as the shock wave destroys one time-of-arrival point after another, or a nonsequential pattern of steps in the event time-of-arrival points are destroyed at any point along the sensor. 6 figs.

  20. Location linked information

    E-Print Network [OSTI]

    Mankins, Matthew William David, 1975-

    2003-01-01

    This work builds an infrastructure called Location Linked Information that offers a means to associate digital information with public, physical places. This connection creates a hybrid virtual/physical space, called glean ...

  1. Locating Heat Recovery Opportunities 

    E-Print Network [OSTI]

    Waterland, A. F.

    1981-01-01

    Basic concepts of heat recovery are defined as they apply to the industrial community. Methods for locating, ranking, and developing heat recovery opportunities are presented and explained. The needs for useful heat 'sinks' are emphasized as equal...

  2. Series Transmission Line Transformer

    DOE Patents [OSTI]

    Buckles, Robert A. (Livermore, CA); Booth, Rex (Livermore, CA); Yen, Boris T. (El Cerrito, CA)

    2004-06-29

    A series transmission line transformer is set forth which includes two or more of impedance matched sets of at least two transmissions lines such as shielded cables, connected in parallel at one end ans series at the other in a cascading fashion. The cables are wound about a magnetic core. The series transmission line transformer (STLT) which can provide for higher impedance ratios and bandwidths, which is scalable, and which is of simpler design and construction.

  3. Introduction to Fourier Series

    E-Print Network [OSTI]

    2014-10-15

    Oct 15, 2014 ... The Basics. Fourier series ... period L. Sine and cosine are the most “basic” periodic functions! .... So just sit back, relax, and enjoy the ride!

  4. Location-Based Events Detection on Micro-Blogs

    E-Print Network [OSTI]

    Santos, Augusto Dias Pereira dos; Alvares, Luis Otavio

    2012-01-01

    The increasing use of social networks generates enormous amounts of data that can be used for many types of analysis. Some of these data have temporal and geographical information, which can be used for comprehensive examination. In this paper, we propose a new method to analyze the massive volume of messages available in Twitter to identify places in the world where topics such as TV shows, climate change, disasters, and sports are emerging. The proposed method is based on a neural network that is used to detect outliers from a time series, which is built upon statistical data from tweets located on different political divisions (i.e., countries, cities). The outliers are used to identify topics within an abnormal behavior in Twitter. The effectiveness of our method is evaluated in an online environment indicating new findings on modeling local people's behavior from different places.

  5. Short range radio locator system

    DOE Patents [OSTI]

    McEwan, T.E.

    1996-12-31

    A radio location system comprises a wireless transmitter that outputs two megahertz period bursts of two gigahertz radar carrier signals. A receiver system determines the position of the transmitter by the relative arrival of the radar bursts at several component receivers set up to have a favorable geometry and each one having a known location. One receiver provides a synchronizing gating pulse to itself and all the other receivers. The rate of the synchronizing gating pulse is slightly offset from the rate of the radar bursts themselves, so that each sample collects one finely-detailed piece of information about the time-of-flight of the radar pulse to each receiver each pulse period. Thousands of sequential pulse periods provide corresponding thousand of pieces of information about the time-of-flight of the radar pulse to each receiver, in expanded, not real time. Therefore the signal processing can be done with relatively low-frequency, inexpensive components. A conventional microcomputer is then used to find the position of the transmitter by geometric triangulation based on the relative time-of-flight information. 5 figs.

  6. Short range radio locator system

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1996-01-01

    A radio location system comprises a wireless transmitter that outputs two megahertz period bursts of two gigahertz radar carrier signals. A receiver system determines the position of the transmitter by the relative arrival of the radar bursts at several component receivers set up to have a favorable geometry and each one having a known location. One receiver provides a synchronizing gating pulse to itself and all the other receivers to sample the ether for the radar pulse. The rate of the synchronizing gating pulse is slightly offset from the rate of the radar bursts themselves, so that each sample collects one finely-detailed piece of information about the time-of-flight of the radar pulse to each receiver each pulse period. Thousands of sequential pulse periods provide corresponding thousand of pieces of information about the time-of-flight of the radar pulse to each receiver, in expanded, not real time. Therefore the signal processing can be done with relatively low-frequency, inexpensive components. A conventional microcomputer is then used to find the position of the transmitter by geometric triangulation based on the relative time-of-flight information.

  7. On harmonic binomial series

    E-Print Network [OSTI]

    Mark W. Coffey

    2008-12-09

    We evaluate binomial series with harmonic number coefficients, providing recursion relations, integral representations, and several examples. The results are of interest to analytic number theory, the analysis of algorithms, and calculations of theoretical physics, as well as other applications.

  8. Fourier series and periodicity

    E-Print Network [OSTI]

    Donal F. Connon

    2014-12-07

    A large number of the classical texts dealing with Fourier series more or less state that the hypothesis of periodicity is required for pointwise convergence. In this paper, we highlight the fact that this condition is not necessary.

  9. NEUROMETHODS Series Editor

    E-Print Network [OSTI]

    Kalueff, Allan V.

    adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed + Business Media made a renewed commitment to this series. The new program will focus on methods

  10. NEUROMETHODS Series Editor

    E-Print Network [OSTI]

    Kalueff, Allan V.

    analysis. Use in connection with any form of information storage and retrieval, electronic adaptation Science + Business Media made a renewed commitment to this series. The new program will focus on methods

  11. Electric current locator

    DOE Patents [OSTI]

    King, Paul E. (Corvallis, OR); Woodside, Charles Rigel (Corvallis, OR)

    2012-02-07

    The disclosure herein provides an apparatus for location of a quantity of current vectors in an electrical device, where the current vector has a known direction and a known relative magnitude to an input current supplied to the electrical device. Mathematical constants used in Biot-Savart superposition equations are determined for the electrical device, the orientation of the apparatus, and relative magnitude of the current vector and the input current, and the apparatus utilizes magnetic field sensors oriented to a sensing plane to provide current vector location based on the solution of the Biot-Savart superposition equations. Description of required orientations between the apparatus and the electrical device are disclosed and various methods of determining the mathematical constants are presented.

  12. Pathobiology Department Seminar Series COMPARATIVE PATHOBIOLOGY SEMINAR SERIES

    E-Print Network [OSTI]

    Alpay, S. Pamir

    . Bushmich) Senior Director of Investigative Pathology Drug Safety Research & Development Pfizer, Inc "TissuePathobiology Department Seminar Series COMPARATIVE PATHOBIOLOGY SEMINAR SERIES Thursdays, 11:00 A

  13. Chow Time 

    E-Print Network [OSTI]

    Unknown

    2011-09-05

    -1 THE PREDICTION OF BUS ARRIVAL TIME USING AUTOMATIC VEHICLE LOCATION SYSTEMS DATA A Dissertation by RAN HEE JEONG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of DOCTOR OF PHILOSOPHY December 2004 Major Subject: Civil Engineering THE PREDICTION OF BUS ARRIVAL TIME USING AUTOMATIC VEHICLE LOCATION SYSTEMS DATA A Dissertation by RAN HEE JEONG Submitted to Texas A...

  14. Location, location, location: utilizing pipelines and services to more effectively georeference the world's biodiversity data

    E-Print Network [OSTI]

    2009-01-01

    location, location: utilizing pipelines and services to morebut also to create pipelines integrated with humanbecome available [8]. These pipelines can be developed to

  15. Energy Management Webinar Series

    Broader source: Energy.gov [DOE]

    Boost your knowledge on how to implement an energy management system through this four-part webinar series from the Superior Energy Performance program. Each webinar introduces various elements of the ISO 50001 energy management standard—based on the Plan-Do-Check-Act approach—and the associated steps of DOE's eGuide for ISO 50001 software tool.

  16. Global Health Seminar Series

    E-Print Network [OSTI]

    Klein, Ophir

    Bay Area Global Health Seminar Series Moving beyond millennium targets in global health: The challenges of investing in health and universal health coverage Although targets can help to focus global health efforts, they can also detract attention from deeper underlying challenges in global health

  17. Bioengineering Lecture Series

    E-Print Network [OSTI]

    Stoltz, Brian M.

    Bioengineering Lecture Series Refreshments will be served at 3:40 pm in the lobby BELS contact Sang Yup Lee KAIST mbel.kaist.ac.kr/lab/family/professor.html Distinguished Professor of Bioengineering-amines, and biopolymers will be described. Co-sponsored by the Bioengineering Department and the Resnick Institute #12;

  18. Condensing Heating and Water Heating Equipment Workshop Location...

    Energy Savers [EERE]

    Condensing Heating and Water Heating Equipment Workshop Location: Washington Gas Light Appliance Training Facility 6801 Industrial Road Springfield, VA Date: October 9, 2014 Time:...

  19. 110. Location efficiency Discovering the hidden transportation costs of where you live page 1 / 1 110. Location efficiency

    E-Print Network [OSTI]

    Machel, Hans

    110. Location efficiency Discovering the hidden transportation costs of where you live page 1 / 1 110. Location efficiency: Discovering the hidden transportation costs of where you live Live location efficiency and it's the amount of time, energy and greenhouse gas emissions you spend getting

  20. The Cricket indoor location system

    E-Print Network [OSTI]

    Priyantha, Nissanka Bodhi, 1968-

    2005-01-01

    Indoor environments present opportunities for a rich set of location-aware applications such as navigation tools for humans and robots, interactive virtual games, resource discovery, asset tracking, location-aware sensor ...

  1. Search Text Based on Locations 

    E-Print Network [OSTI]

    Zhang, Weiwei

    2014-11-21

    locations, which contributes to the Geographical Information Retrieval (GIR) systems. In addition to the traditional applications of GIR systems, which are used for finding locations in documents, GIR can be applied to other fields as well. Firstly, it can...

  2. Functional Power Series

    E-Print Network [OSTI]

    Henrik Stenlund

    2012-04-24

    This work introduces a new functional series for expanding an analytic function in terms of an arbitrary analytic function. It is generally applicable and straightforward to use. It is also suitable for approximating the behavior of a function with a few terms. A new expression is presented for the composite function's n'th derivative. The inverse-composite method is handled in this work also.

  3. Location, location, location: The variable value of renewable energy and demand-side efficiency resources

    E-Print Network [OSTI]

    Fowlie, Meredith

    and renewable energy resources. We eval- uate renewable energy (RE) and energy efficiency (EE) technologiesLocation, location, location: The variable value of renewable energy and demand-side efficiency mitigation efforts in the electricity sector emphasize accelerated deployment of energy efficiency measures

  4. Soils Soil Series

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect Photovoltaics -7541 *ImpactScience of SignaturesSoft0 Soils Soil Series and

  5. Utility Locating in the DOE Environment

    SciTech Connect (OSTI)

    Clark Scott; Gail Heath

    2006-04-01

    Some advances have been made in utility locating in recent years and standards have been recently published to try and categorize the level of information known about the utility in the subsurface. At the same time some characterization about the level of effort or technology in the geophysicist approach to utility locating may be generalized. The DOE environment poses some added difficulties and this presentation covers these issues, costs and the technical approach that has been developed at the INEEL to prevent utility hits and how it fits into the generalized classification of effort.

  6. VCSEL fault location apparatus and method

    DOE Patents [OSTI]

    Keeler, Gordon A. (Albuquerque, NM); Serkland, Darwin K. (Albuquerque, NM)

    2007-05-15

    An apparatus for locating a fault within an optical fiber is disclosed. The apparatus, which can be formed as a part of a fiber-optic transmitter or as a stand-alone instrument, utilizes a vertical-cavity surface-emitting laser (VCSEL) to generate a test pulse of light which is coupled into an optical fiber under test. The VCSEL is subsequently reconfigured by changing a bias voltage thereto and is used as a resonant-cavity photodetector (RCPD) to detect a portion of the test light pulse which is reflected or scattered from any fault within the optical fiber. A time interval .DELTA.t between an instant in time when the test light pulse is generated and the time the reflected or scattered portion is detected can then be used to determine the location of the fault within the optical fiber.

  7. Uranium-series constraints on radionuclide transport and groundwater flow at the Nopal I uranium deposit, Sierra Pena Blanca, Mexico

    SciTech Connect (OSTI)

    Goldstein, S.J.; Abdel-Fattah, A.I.; Murrell, M.T.; Dobson, P.F.; Norman, D.E.; Amato, R.S.; Nunn, A. J.

    2009-10-01

    Uranium-series data for groundwater samples from the Nopal I uranium ore deposit were obtained to place constraints on radionuclide transport and hydrologic processes for a nuclear waste repository located in fractured, unsaturated volcanic tuff. Decreasing uranium concentrations for wells drilled in 2003 are consistent with a simple physical mixing model that indicates that groundwater velocities are low ({approx}10 m/y). Uranium isotopic constraints, well productivities, and radon systematics also suggest limited groundwater mixing and slow flow in the saturated zone. Uranium isotopic systematics for seepage water collected in the mine adit show a spatial dependence which is consistent with longer water-rock interaction times and higher uranium dissolution inputs at the front adit where the deposit is located. Uranium-series disequilibria measurements for mostly unsaturated zone samples indicate that {sup 230}Th/{sup 238}U activity ratios range from 0.005-0.48 and {sup 226}Ra/{sup 238}U activity ratios range from 0.006-113. {sup 239}Pu/{sup 238}U mass ratios for the saturated zone are <2 x 10{sup -14}, and Pu mobility in the saturated zone is >1000 times lower than the U mobility. Saturated zone mobility decreases in the order {sup 238}U{approx}{sup 226}Ra > {sup 230}Th{approx}{sup 239}Pu. Radium and thorium appear to have higher mobility in the unsaturated zone based on U-series data from fractures and seepage water near the deposit.

  8. Hiding Location Information from Location-Based Services

    E-Print Network [OSTI]

    Hengartner, Urs

    that the architecture is powerful enough to support existing location- based services. Our architecture exploits Trusted-specific information is being accessed. I. INTRODUCTION The ubiquity of cellphones has lead to the introduction of a cellphone user (e.g., directions to a target location or a list of interesting, nearby places). Another

  9. Location Management for Mobile Devices

    E-Print Network [OSTI]

    Wilde, Erik

    2008-01-01

    general, and wireless and mobile devices in particular. Thelocation-enabled mobile devices and location-based services.information from mobile devices and making it available to

  10. Mobile Alternative Fueling Station Locator

    SciTech Connect (OSTI)

    Not Available

    2009-04-01

    The Department of Energy's Alternative Fueling Station Locator is available on-the-go via cell phones, BlackBerrys, or other personal handheld devices. The mobile locator allows users to find the five closest biodiesel, electricity, E85, hydrogen, natural gas, and propane fueling sites using Google technology.

  11. Guide to the Library Locations

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Guide to the Libraries #12;Library Locations W.E.B. DU BOIS LIBRARY www.library.umass.edu 154 Hicks Way (413) 545-0150, (413) 545-2622 The Du Bois Library is the primary location for resources in education, geography, the humanities and fine arts, nursing, management, medicine, public health, and social

  12. NREL Fall 2012 Seminar Series "Managing our Natural Resources for Changing Climate"

    E-Print Network [OSTI]

    MacDonald, Lee

    NREL Fall 2012 Seminar Series "Managing our Natural Resources for Changing Climate" Facilitated by Dennis Ojima (CSU NREL) and Jeff Morisette (USGS NC CSC) Please note change in lectures location: Third, and discussion. This fall's NREL seminar series is being co-sponsored by the Department of Interior North Central

  13. Frontiers in Global Change Seminar Series

    E-Print Network [OSTI]

    particles ("aerosols") exert a net cooling effect by directly scattering and absorption of solar radiation the amount of infrared radiation that is emitted to space. Increased levels of suspended atmospheric after the seminar. ~Refreshments will be served~ Date: Thursday, August 1 Location: EMSL Auditorium Time

  14. Course # Title Course Director Prerequisites Credits End Time Location

    E-Print Network [OSTI]

    Hanson, Stephen José

    of the excretory system, includ- ing the kidney (Dressler et al. 1990; Plachov et al. 1990), and Pm-7 contributes

  15. Time and Location in Sensor Networks Institute for Pervasive Computing

    E-Print Network [OSTI]

    the observed physical processes. Examples include monitoring the be- havior of animals in their natural habitats, monitoring the spreading of environmental pollutions in air and water, and monitoring seismic influences. The small size severely limits the onboard resources of a sensor node (energy, communication

  16. Title Date/Time Location Overcoming the Capacity Crunch

    E-Print Network [OSTI]

    Molinari, Marc

    , Peter G. R. Smith, ORC, University of Southampton Sun, 06/21/2015 11:00 - 11:15 h Room 14a, 1st Floor.E. Gawith ,Gilberto Brambilla, Peter G.R. Smith, ORC, University of Southampton Sun, 06/21/2015 11:30 - 11, Cesare Soci, ORC, University of Southampton Sun, 06/21/2015 11:45 - 12:00 h Room 14a, 1st Floor, Congress

  17. Power Series Power series are one of the most useful type of series in analysis. For example,

    E-Print Network [OSTI]

    Hunter, John K.

    Chapter 6 Power Series Power series are one of the most useful type of series in analysis functions (and many other less familiar functions). 6.1. Introduction A power series (centered at 0 coefficients. If all but finitely many of the an are zero, then the power series is a polynomial function

  18. Stopping supersonic oxygen with a series of pulsed electromagnetic coils: A molecular coilgun Edvardas Narevicius,1

    E-Print Network [OSTI]

    Texas at Austin. University of

    Stopping supersonic oxygen with a series of pulsed electromagnetic coils: A molecular coilgun, using a series of pulsed electromagnetic coils. A series of coils is fired in a timed sequence to bring in some experiments by interactions with pulsed electric fields Stark decelerator 4­6 , by inter- actions

  19. WORKPLACE HAZARD ASSESSMENT Location: Task

    E-Print Network [OSTI]

    Rubloff, Gary W.

    WORKPLACE HAZARD ASSESSMENT Location: Task: Performed by: Date: This form may be used as an aid in performing hazard assessment. Review listed hazard classifications, identify all hazards, possible hazards and their sources. Hazard classification listing is not intended to be complete but is provided as a guide

  20. Mechanical Engineering Department Seminar Series

    E-Print Network [OSTI]

    Awtar, Shorya

    Mechanical Engineering Department Seminar Series Mechanics of a Mosquito Professor of Mechanical Engineering Clemson University Tuesday, March 24, 2015 4:00 ­ 5:00 pm Room 1303 EECS Abstract: The mechanics of a fascicle insertion into the skin

  1. Solar Permitting & Inspection Webinar Series

    Office of Energy Efficiency and Renewable Energy (EERE)

    ICLEI Local Governments for Sustainability U.S.A. and the Interstate Renewable Energy Council, Inc. (IREC) present a series of three webinars on Solar Permitting & Inspection. As part of the U...

  2. Mechanical Engineering Department Seminar Series

    E-Print Network [OSTI]

    Awtar, Shorya

    Mechanical Engineering Department Seminar Series The use of Virtual Prototyping and 3D Printing-based medical device design and manufacture linked up with 3D printing. The improvements will include patient

  3. UNEP Policy Series ECOSYSTEM MANAGEMENT

    E-Print Network [OSTI]

    1 UNEP Policy Series ECOSYSTEM MANAGEMENT Sustaining Forests: Sustaining forests: Investing in our ...........................................................................6 II. Threats to the world's forests: a complex policy problem ............................7 A. Market failures, financial mechanisms and costs of business ..................8 III. Innovative policy

  4. Eisenstein Series in String Theory

    E-Print Network [OSTI]

    N. A. Obers; B. Pioline

    2000-03-01

    We discuss the relevance of Eisenstein series for representing certain G(Z)-invariant string theory amplitudes which receive corrections from BPS states only. The Eisenstein series are constructed using G(Z)-invariant mass formulae and are manifestly invariant modular functions on the symmetric space K\\G(R) of non-compact type, with K the maximal compact subgroup of G(R). In particular, we show how Eisenstein series of the T-duality group SO(d,d,Z) can be used to represent one- and g-loop amplitudes in compactified string theory. We also obtain their non-perturbative extensions in terms of the Eisenstein series of the U-duality group E_{d+1(d+1)}(Z).

  5. Castle series, 1954. Technical report

    SciTech Connect (OSTI)

    Martin, E.J.; Rowland, R.H.

    1982-04-01

    CASTLE was an atmospheric nuclear weapons test series held in the Marshall Islands at Enewetak and Bikini atolls in 1954. This is a report of DOD peronnel in CASTLE with an emphasis on operations and radiological safety.

  6. Basic Fourier Series Academic Resource Center

    E-Print Network [OSTI]

    Heller, Barbara

    Basic Fourier Series Academic Resource Center Workshop for BME by: Neha Bansal #12;Agenda · Fourier Series · Trigonometric Fourier Series · Compact Trigonometric Fourier Series · Examples o Square Waves o Sawtooth Waves · References #12;Fourier Series · A periodic function f(t) can be represented by an infinite

  7. Joint microseismic event location with uncertain velocity

    E-Print Network [OSTI]

    Poliannikov, Oleg V.

    2013-01-01

    We study the problem of the joint location of seismic events using an array of receivers. We show that locating multiple seismic events simultaneously is advantageous compared to the more traditional approaches of locating ...

  8. Location and Hours | ornl.gov

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

    Location and Hours Location The ORNL Research Library is located off the central corridor of Bldg. 4500N on the main ORNL campus. Hours The library is open 24 hours, seven days a...

  9. Selecting the Content of Textual Descriptions of Geographically Located

    E-Print Network [OSTI]

    Reiter, Ehud

    2003a], has been applied to produce summaries of time series data in the weather, gas turbine-temporal data. #12;In the RoadSafe project our long term goal is to generate textual weather forecasts Generation (NLG) techniques to generate textual summaries of spatio- temporal numerical weather prediction

  10. Optimized Fault Location Final Project Report

    E-Print Network [OSTI]

    Optimized Fault Location Final Project Report Power Systems Engineering Research Center A National Engineering Research Center Optimized Fault Location Concurrent Technologies Corporation Final Project Report

  11. Energy Department Launches Alternative Fueling Station Locator...

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

    Launches Alternative Fueling Station Locator App Energy Department Launches Alternative Fueling Station Locator App November 7, 2013 - 11:16am Addthis As part of the Obama...

  12. Expansion analyses of strategic petroleum reserve in Bayou Choctaw : revised locations.

    SciTech Connect (OSTI)

    Ehgartner, Brian L.; Park, Byoung Yoon

    2010-11-01

    This report summarizes a series of three-dimensional simulations for the Bayou Choctaw Strategic Petroleum Reserve. The U.S. Department of Energy plans to leach two new caverns and convert one of the existing caverns within the Bayou Choctaw salt dome to expand its petroleum reserve storage capacity. An existing finite element mesh from previous analyses is modified by changing the locations of two caverns. The structural integrity of the three expansion caverns and the interaction between all the caverns in the dome are investigated. The impacts of the expansion on underground creep closure, surface subsidence, infrastructure, and well integrity are quantified. Two scenarios were used for the duration and timing of workover conditions where wellhead pressures are temporarily reduced to atmospheric pressure. The three expansion caverns are predicted to be structurally stable against tensile failure for both scenarios. Dilatant failure is not expected within the vicinity of the expansion caverns. Damage to surface structures is not predicted and there is not a marked increase in surface strains due to the presence of the three expansion caverns. The wells into the caverns should not undergo yield. The results show that from a structural viewpoint, the locations of the two newly proposed expansion caverns are acceptable, and all three expansion caverns can be safely constructed and operated.

  13. Ombuds Office Location & Hours

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEY UNIVERSEHowScientificOmbuds Office Location & Hours Ombuds

  14. Uncertain Time-Series Similarity: Return to the Basics

    E-Print Network [OSTI]

    Palpanas, Themis

    efficiency, prod- uct quality and safety, hydrologic and geologic observing systems, pollution management- sor networks are used in hydrologic and geologic ob- serving systems, pollution management in urban of ap- plication domains, including traffic flow management, me- teorology, astronomy, remote sensing

  15. Cyclical Components in Economic Time Series: a Bayesian Approach

    E-Print Network [OSTI]

    Harvey, Andrew C.; Trimbur, Thomas; van Dijk, Herman

    2004-06-16

    V v 0 4 2Z*b S  f?He. f?H f?2DD f?H.S 2??e 2 f?D.e f?bfb f?eDb f?S.f 2D?. 6 f??f? f?b2f f?Se2 f?DH 2e?b 7 f?DDf f?b?D f?SSf f?D? 2e? Wdeoh 7= Srvwhulru phdqv iru d elyduldwh prgho iru txduwhuo| XV uhdo JGS dqg lqyhvwphqw iurp 4<7:=4 wr 5334...

  16. Deriving emissions time series from sparse atmospheric mole fractions

    E-Print Network [OSTI]

    Rigby, Matthew

    A growth-based Bayesian inverse method is presented for deriving emissions of atmospheric trace species from temporally sparse measurements of their mole fractions. This work is motivated by many recent studies that have ...

  17. V-uniform ergodicity of threshold autoregressive nonlinear time series 

    E-Print Network [OSTI]

    Boucher, Thomas Richard

    2004-09-30

    -uniform ergodicity for the k-step chain: limsup bardblxbardblarrowrightinfinity E(V(Xn+k)|X0 = x) V(x) < 1 (2.3) and for all M < infinity sup bardblxbardbl<=

  18. Time series models with an EGB2 conditional distribution

    E-Print Network [OSTI]

    Harvey, Andrew; Caivano, Michele

    2013-07-17

    function; see Kleiber4 and Kotz (2003, ch6). The GB2 distribution contains many important distributions as special cases, including the Burr (#24; = 1) and log-logistic (#24; = 1; & = 1). GB2 distributions are fat tailed for ?nite #24; and & with upper... and lower tail indices of #17; = and #17; = #24;#23; respectively. The absolute value5 of a tf variate is GB2(f 1=2'; 2; 1=2; f=2) with tail index is #17; = #17; = f: 4Note that Kleiber and Kotz (2003) have #11; and #23; in reverse order, ie they write...

  19. Events, Neural Systems and Time Series Leslie Smith1

    E-Print Network [OSTI]

    Smith, Leslie S.

    Bizarro4 1 Computing Science and Mathematics, School of Natural Sciences, University of Stirling, Stirling Informatics Engineering Department, University of Coimbra, 3030-290 Coimbra, Portugal Abstract. Different

  20. RESULTS Greenhouse Gas Time Series SUMMARY AND CONCLUSIONS

    E-Print Network [OSTI]

    fitting method2 . · Soil temperature at 5 cm taken concurrently with chambers · Soil water content of top limited below a soil water content of 63% and are diffusion limited above 63%. · Soil temperature with showing an exponential dependence of CO2 on temperature; b) Soil water content vs. temperature CO2 model

  1. Change Detection in Time Series Data Using Wavelet Footprints

    E-Print Network [OSTI]

    Shahabi, Cyrus

    's Center of Excellence for Research and Aca- demic Training on Interactive Smart Oilfield Technologies (Ci

  2. Self-organizing Time Series Model Tomoyuki Higuchi

    E-Print Network [OSTI]

    Higuchi, Tomoyuki

    .1) observation model yt r( jxt obs) (1.2) where xt is an nx 1 vector of unobserved sate variables, and yt R) (1.6) where F G, and H are nx nx, nx nv , and ny nx matrices, respectively. Q and R enormously with respect to the state dimension nx (Carlin, Polson and Sto er 1992, Fahrmeir 1992, Fruhwirth

  3. Essays on Bayesian Time Series and Variable Selection 

    E-Print Network [OSTI]

    De, Debkumar

    2014-05-08

    Estimating model parameters in dynamic model continues to be challenge. In my dissertation, we have introduced a Stochastic Approximation based parameter estimation approach under Ensemble Kalman Filter set-up. Asymptotic properties of the resultant...

  4. DETECTING REGIMES IN TEMPERATURE TIME SERIES PATRICK J. CLEMINS

    E-Print Network [OSTI]

    Povinelli, Richard J.

    , such as the northern hemisphere during the winter, tend to follow a regime structure. The El Nino cycle, which has two

  5. Condition Evaluation for Speculative Systems: a Streaming Time Series Case

    E-Print Network [OSTI]

    Wang, Xiaoyang "Sean"

    ., Univ. of Vermont xywang@cs.uvm.edu Like Gao CS Dept., Univ. of Vermont lgao@cs.uvm.edu Min Wang IBM T

  6. Essays on time series and causality analysis in financial markets 

    E-Print Network [OSTI]

    Zohrabyan, Tatevik

    2009-05-15

    DAG Directed Acyclic Graph EN Energy ENC East North Central ESC East South Central EUR Euro FI Financials Finl Finland Fran France Germ Germany GICS Global Industry Classification Sector HC Health Care HK Honk Kong vii Hung Hungary...-denominated Data in Post-Euro Period ......................................................................................................... 88 3.7 Estimated Copula Parameters for EUR-denominated Data in Post-Euro Period...

  7. Applications of Time Series in Finance and Macroeconomics 

    E-Print Network [OSTI]

    Ibarra Ramirez, Raul

    2011-08-08

    out-of-sample fore- casts for the in ation rate in Mexico. Factor models are useful to summarize the information contained in large datasets. We evaluate the role of using a wide range of macroeconomic variables to forecast in ation, with particular...-2006 : : : : 42 V Stochastic Dominance Test : : : : : : : : : : : : : : : : : : : : : : : 46 VI Forecasting Results: Headline In ation : : : : : : : : : : : : : : : : : 65 VII Forecasting Results: Core In ation : : : : : : : : : : : : : : : : : : : 66 VIII...

  8. Time Series Analysis of Aviation Dr. Richard Xie

    E-Print Network [OSTI]

    is free · R is a language, not just a statistical tool · R makes graphics and visualization of the best, Mathematica, Maple ­ SAS, SPSS, STATA, R ­ ROOT, PAW, KNIME, Data Applied, etc. ­ Others #12;Use R! · R quality · A flexible statistical analysis toolkit · Access to powerful, cutting-edge analytics · A robust

  9. Modeling and Prediction of Time Series of Directed Binary Networks

    E-Print Network [OSTI]

    Betancourt, Brenda

    2015-01-01

    O. , Sindharan, K. & Tewari, A. (2010). Learning exponentialC . Shalev-Shwartz, S. & Tewari, A. (2011). Stochasticby Shalev- Shwartz & Tewari (2011) (see also Carpenter,

  10. Stochastic Simulation Methods for Precipitation and Streamflow Time Series 

    E-Print Network [OSTI]

    Li, Chao

    2013-04-30

    One major acknowledged challenge in daily precipitation is the inability to model extreme events in the spectrum of events. These extreme events are rare but may cause large losses. How to realistically simulate extreme ...

  11. Mechanical Engineering Department Seminar Series

    E-Print Network [OSTI]

    Awtar, Shorya

    electrode. The solar battery provides a promising approach of making renewable energy more affordable. . BioMechanical Engineering Department Seminar Series Rechargeable K-Oxygen and Solar Batteries: From of fuel cells and metal-air batteries. In my talk, I will first present a K-O2 battery that uses K+ ions

  12. Series expansions and sudden singularities

    E-Print Network [OSTI]

    John D. Barrow; S. Cotsakis; A. Tsokaros

    2013-01-28

    We construct solutions of the Friedmann equations near a sudden singularity using generalized series expansions for the scale factor, the density, and the pressure of the fluid content. In this way, we are able to arrive at a solution with a sudden singularity containing two free constants, as required for a general solution of the cosmological equations.

  13. UCDscholarcast Series 13 (Spring 2015)

    E-Print Network [OSTI]

    with Dublin City Public Libraries) Series Editor: Derek Hand General Editor: P.J. Mathews © UCDscholarcast #12 itself. Barrytown functions as a self-contained and seemingly insular space where the notion of public is the dissolution of the boundaries that exist between public and private. Within both the Rabbitte household

  14. 2014-2015Series Engineering

    E-Print Network [OSTI]

    MacAdam, Keith

    2014-2015Series College of Engineering University of Kentucky is accredited by the Southern of Kentucky. The curriculum in biosystems engineering is administered jointly by the College of Engineering and the College of Agriculture. Graduates earn the Bachelor of Science in Biosystems Engineering degree

  15. Magnetic pulsing technique for tracking, locating pigs. [Locating pipeline servicing equipment using magnetic pulsing

    SciTech Connect (OSTI)

    Farque, J.A. (C.D.I., Broken Arrow, OK (United States))

    1994-01-01

    Magnetic transmission systems work well in conjunction with pipe line pigging. They have transmission characteristics that allow an operator to track a pig as it moves through the line with one antenna orientation, and locate a stationary pig and transmitter to within inches with another. Advanced systems offer pig run documentation features by recording the images of transmitter passages and their times and dates. These features will become increasingly important to pipe line owners and operators in the future as the EPA tightens its grip on the pipe line and gas industries. Additionally, pigging personnel with no real experience with the tracking or location of pigs can operate a magnetic system and be immediately productive. This lowers the overall cost to the service company, the pipe line owner, and ultimately the end user of the product.

  16. JMLR: Workshop and Conference Proceedings 12 (2011) 115139 Causality in Time Series Time Series Analysis with the Causality Workbench

    E-Print Network [OSTI]

    Statnikov, Alexander

    2011-01-01

    , smoking and coughing might be both predictive of respiratory disease and helpful for diagnosis purposes. However, if smoking is a cause and coughing a conse- quence, acting on the cause (smoking) can change your health status, but not acting on the symptom or consequence (coughing). Thus it is extremely important

  17. Absolute Earthquake Locations with Differential Data By William Menke and David Schaff

    E-Print Network [OSTI]

    Menke, William

    Absolute Earthquake Locations with Differential Data By William Menke and David Schaff Lamont the commonly-held wisdom that "you can't determine the absolute location of earthquakes using the double differential arrival time data can, in principle, be used to determine the absolute locations of earthquakes

  18. Hanford Single-Shell Tank Leak Causes and Locations - 241-B Farm

    SciTech Connect (OSTI)

    Girardot, Crystal L.; Harlow, Donald G.

    2013-07-11

    This document identifies 241-B Tank Farm (B Farm) leak cause and locations for the 100 series leaking tank (241-B-107) identified in RPP-RPT-49089, Hanford B-Farm Leak Inventory Assessments Report. This document satisfies the B Farm portion of the target (T04) in the Hanford Federal Facility Agreement and Consent Order milestone M-045-91F.

  19. Methods, systems and devices for detecting and locating ferromagnetic objects

    DOE Patents [OSTI]

    Roybal, Lyle Gene (Idaho Falls, ID) [Idaho Falls, ID; Kotter, Dale Kent (Shelley, ID) [Shelley, ID; Rohrbaugh, David Thomas (Idaho Falls, ID) [Idaho Falls, ID; Spencer, David Frazer (Idaho Falls, ID) [Idaho Falls, ID

    2010-01-26

    Methods for detecting and locating ferromagnetic objects in a security screening system. One method includes a step of acquiring magnetic data that includes magnetic field gradients detected during a period of time. Another step includes representing the magnetic data as a function of the period of time. Another step includes converting the magnetic data to being represented as a function of frequency. Another method includes a step of sensing a magnetic field for a period of time. Another step includes detecting a gradient within the magnetic field during the period of time. Another step includes identifying a peak value of the gradient detected during the period of time. Another step includes identifying a portion of time within the period of time that represents when the peak value occurs. Another step includes configuring the portion of time over the period of time to represent a ratio.

  20. Summer Series 2012 - Shashi Buluswar

    ScienceCinema (OSTI)

    Shashi Buluswar

    2013-06-24

    The last installment of the "Summer Series of Conversations" took place Wednesday, August 1, with guest Shashi Buluswar, the executive director of the LBNL Institute for Globally Transformative Technologies (LIGTT). The Institute seeks to foster the discovery, development and deployment of a generation of low-carbon, affordable technologies that will advance sustainable methods to fight global poverty. The event, was hosted by Public Affairs Head Jeff Miller.

  1. Summer Series 2012 - Shashi Buluswar

    SciTech Connect (OSTI)

    Shashi Buluswar

    2012-08-08

    The last installment of the "Summer Series of Conversations" took place Wednesday, August 1, with guest Shashi Buluswar, the executive director of the LBNL Institute for Globally Transformative Technologies (LIGTT). The Institute seeks to foster the discovery, development and deployment of a generation of low-carbon, affordable technologies that will advance sustainable methods to fight global poverty. The event, was hosted by Public Affairs Head Jeff Miller.

  2. An Information Theoretic Location Verification System for Wireless Networks

    E-Print Network [OSTI]

    Yan, Shihao; Nevat, Ido; Peters, Gareth W

    2012-01-01

    As location-based applications become ubiquitous in emerging wireless networks, Location Verification Systems (LVS) are of growing importance. In this paper we propose, for the first time, a rigorous information-theoretic framework for an LVS. The theoretical framework we develop illustrates how the threshold used in the detection of a spoofed location can be optimized in terms of the mutual information between the input and output data of the LVS. In order to verify the legitimacy of our analytical framework we have carried out detailed numerical simulations. Our simulations mimic the practical scenario where a system deployed using our framework must make a binary Yes/No "malicious decision" to each snapshot of the signal strength values obtained by base stations. The comparison between simulation and analysis shows excellent agreement. Our optimized LVS framework provides a defence against location spoofing attacks in emerging wireless networks such as those envisioned for Intelligent Transport Systems, wh...

  3. Bibliography of the Scripps Institution of Oceanography Reference Series 2001

    E-Print Network [OSTI]

    Criqui, Nan P.; Kuhns, Kittie K.

    2002-01-01

    Scripps Institution of Oceanography Reference Series 2001.SCRIPPS INSTITUTION OF OCEANOGRAPHY REFERENCE SERIES 01-01

  4. Extracting Patterns from Location History Andrew Kirmse

    E-Print Network [OSTI]

    Cortes, Corinna

    " to infer the user's important locations. The "Place lab client" infers locations by listening to RF-emissions different modes of transportation (e.g. bus, on foot, car etc.). Both these papers use clean regularly-sampled

  5. Quantum Mechanics Summary/Review Spring 2009 Compton Lecture Series

    E-Print Network [OSTI]

    Quantum Mechanics Summary/Review Spring 2009 Compton Lecture Series: From Quantum Mechanics one component at a time. · Planck's constant determines the scale at which quantum mechanical effects could get rid of quantum mechanical effects ­ The "wavelength" of particles given by h mv would all

  6. Synchronous Machine Parameter Estimation Using Orthogonal Series Expansion

    E-Print Network [OSTI]

    Synchronous Machine Parameter Estimation Using Orthogonal Series Expansion J. Rico G. T. Heydt A an alternative to estimate armature circuit parameters of large utility generators using real time operating data of digital fault recorder data to identify synchronous machine parameters. 1. INTRODUCTION The use orthogonal

  7. PROBABILISTIC METHODS FOR LOCATION ESTIMATION IN

    E-Print Network [OSTI]

    Myllymäki, Petri

    PROBABILISTIC METHODS FOR LOCATION ESTIMATION IN WIRELESS NETWORKS Petri Kontkanen, Petri Myllym;PROBABILISTIC METHODS FOR LOCATION ESTIMATION IN WIRELESS NETWORKS Petri Kontkanen, Petri Myllym¨aki, Teemu Roos METHODS FOR LOCATION ESTIMATION IN WIRELESS NETWORKS Petri Kontkanen, Petri Myllymäki, Teemu Roos, Henry

  8. Fault Locating, Prediction and Protection (FLPPS)

    SciTech Connect (OSTI)

    Yinger, Robert, J.; Venkata, S., S.; Centeno, Virgilio

    2010-09-30

    One of the main objectives of this DOE-sponsored project was to reduce customer outage time. Fault location, prediction, and protection are the most important aspects of fault management for the reduction of outage time. In the past most of the research and development on power system faults in these areas has focused on transmission systems, and it is not until recently with deregulation and competition that research on power system faults has begun to focus on the unique aspects of distribution systems. This project was planned with three Phases, approximately one year per phase. The first phase of the project involved an assessment of the state-of-the-art in fault location, prediction, and detection as well as the design, lab testing, and field installation of the advanced protection system on the SCE Circuit of the Future located north of San Bernardino, CA. The new feeder automation scheme, with vacuum fault interrupters, will limit the number of customers affected by the fault. Depending on the fault location, the substation breaker might not even trip. Through the use of fast communications (fiber) the fault locations can be determined and the proper fault interrupting switches opened automatically. With knowledge of circuit loadings at the time of the fault, ties to other circuits can be closed automatically to restore all customers except the faulted section. This new automation scheme limits outage time and increases reliability for customers. The second phase of the project involved the selection, modeling, testing and installation of a fault current limiter on the Circuit of the Future. While this project did not pay for the installation and testing of the fault current limiter, it did perform the evaluation of the fault current limiter and its impacts on the protection system of the Circuit of the Future. After investigation of several fault current limiters, the Zenergy superconducting, saturable core fault current limiter was selected for installation. Because of some testing problems with the Zenergy fault current limiter, installation was delayed until early 2009 with it being put into operation on March 6, 2009. A malfunction of the FCL controller caused the DC power supply to the superconducting magnet to be turned off. This inserted the FCL impedance into the circuit while it was in normal operation causing a voltage resonance condition. While these voltages never reached a point where damage would occur on customer equipment, steps were taken to insure this would not happen again. The FCL was reenergized with load on December 18, 2009. A fault was experienced on the circuit with the FCL in operation on January 14, 2010. The FCL operated properly and reduced the fault current by about 8%, what was expected from tests and modeling. As of the end of the project, the FCL was still in operation on the circuit. The third phase of the project involved the exploration of several advanced protection ideas that might be at a state where they could be applied to the Circuit of the Future and elsewhere in the SCE electrical system. Based on the work done as part of the literature review and survey, as well as a number of internal meetings with engineering staff at SCE, a number of ideas were compiled. These ideas were then evaluated for applicability and ability to be applied on the Circuit of the Future in the time remaining for the project. Some of these basic ideas were implemented on the circuit including measurement of power quality before and after the FCL. It was also decided that we would take what was learned as part of the Circuit of the Future work and extend it to the next generation circuit protection for SCE. Also at this time, SCE put in a proposal to the DOE for the Irvine Smart Grid Demonstration using ARRA funding. SCE was successful in obtaining funding for this proposal, so it was felt that exploration of new protection schemes for this Irvine Smart Grid Demonstration would be a good use of the project resources. With this in mind, a protection system that uses fault interrupting switches, hi

  9. H-Series Cast Austenitic Stainless Steels

    Broader source: Energy.gov [DOE]

    Cast H-Series austenitic steels are used extensively in several industries for a broad range of high-temperature applications. The H-Series stainless steels have evolved over many years of complex...

  10. Memory Constraints for Power-Law Series

    E-Print Network [OSTI]

    Guo, Fangjian; Zhao, Zhi-Dan; Zhou, Tao

    2015-01-01

    Many time series produced by complex systems are empirically found to follow power-law distributions with different exponents $\\alpha$. By permuting the independently drawn samples from a power-law distribution, we present non-trivial bounds on the memory (1st-order autocorrelation) as a function of $\\alpha$, which are markedly different from the ordinary $\\pm 1$ bounds for Gaussian or uniform distributions. When $1 3$, the upper bound remains +1 while the lower bound descends below 0. Theoretical bounds agree well with numerical simulations. Based on the ratings of MovieLens and posts in Twitter, we also find that empirical power-law distributed data produced by human activities conform to such constraints.

  11. Physics Letters A 342 (2005) 397403 www.elsevier.com/locate/pla

    E-Print Network [OSTI]

    Chin, Siu A.

    2005-01-01

    Physics Letters A 342 (2005) 397­403 www.elsevier.com/locate/pla Exact evolution of time (2005) 397­403 In this work, we show that the evolution of any factorized, time-reversible integrators

  12. Radiation damage in the LHCb Vertex Locator

    E-Print Network [OSTI]

    A. Affolder; K. Akiba; M. Alexander; S. Ali; M. Artuso; J. Benton; M. van Beuzekom; P. M. Bj\\ornstad; G. Bogdanova; S. Borghi; T. J. V. Bowcock; H. Brown; J. Buytaert; G. Casse; P. Collins; S. De Capua; D. Dossett; L. Eklund; C. Farinelli; J. Garofoli; M. Gersabeck; T. Gershon; H. Gordon; J. Harrison; V. Heijne; K. Hennessy; D. Hutchcroft; E. Jans; M. John; T. Ketel; G. Lafferty; T. Latham; A. Leflat; M. Liles; D. Moran; I. Mous; A. Oblakowska-Mucha; C. Parkes; G. D. Patel; S. Redford; M. M. Reid; K. Rinnert; E. Rodrigues; M. Schiller; T. Szumlak; C. Thomas; J. Velthuis; V. Volkov; A. D. Webber; M. Whitehead; E. Zverev

    2013-02-21

    The LHCb Vertex Locator (VELO) is a silicon strip detector designed to reconstruct charged particle trajectories and vertices produced at the LHCb interaction region. During the first two years of data collection, the 84 VELO sensors have been exposed to a range of fluences up to a maximum value of approximately $\\rm{45 \\times 10^{12}\\,1\\,MeV}$ neutron equivalent ($\\rm{1\\,MeV\\,n_{eq}}$). At the operational sensor temperature of approximately $-7\\,^{\\circ}\\rm{C}$, the average rate of sensor current increase is $18\\,\\upmu\\rm{A}$ per $\\rm{fb^{-1}}$, in excellent agreement with predictions. The silicon effective bandgap has been determined using current versus temperature scan data after irradiation, with an average value of $E_{g}=1.16\\pm0.03\\pm0.04\\,\\rm{eV}$ obtained. The first observation of n-on-n sensor type inversion at the LHC has been made, occurring at a fluence of around $15 \\times 10 ^{12}$ of $1\\,\\rm{MeV\\,n_{eq}}$. The only n-on-p sensors in use at the LHC have also been studied. With an initial fluence of approximately $\\rm{3 \\times 10^{12}\\,1\\,MeV\\,n_{eq}}$, a decrease in the Effective Depletion Voltage (EDV) of around 25\\,V is observed, attributed to oxygen induced removal of boron interstitial sites. Following this initial decrease, the EDV increases at a comparable rate to the type inverted n-on-n type sensors, with rates of $(1.43\\pm 0.16) \\times 10 ^{-12}\\,\\rm{V} / \\, 1 \\, \\rm{MeV\\,n_{eq}}$ and $(1.35\\pm 0.25) \\times 10 ^{-12}\\,\\rm{V} / \\, 1 \\, \\rm{MeV\\,n_{eq}}$ measured for n-on-p and n-on-n type sensors, respectively. A reduction in the charge collection efficiency due to an unexpected effect involving the second metal layer readout lines is observed.

  13. ENGI 5432 3. Fourier Series Page 3.01 3. Fourier Series

    E-Print Network [OSTI]

    George, Glyn

    ENGI 5432 3. Fourier Series Page 3.01 3. Fourier Series This short chapter offers a very brief review of [discrete] Fourier series. The Fourier series of f (x) on the interval (­L, L) is ( ) 0 1 cos - = = ... The {an, bn} are the Fourier coefficients of f (x). Note that the cosine functions (and the function 1

  14. Serie e trasformate di Fourier (1) Verificare i seguenti sviluppi in serie di Fourier

    E-Print Network [OSTI]

    Presilla, Carlo

    F12 Serie e trasformate di Fourier (1) Verificare i seguenti sviluppi in serie di Fourier (a) sgn . (2) Sviluppare in serie trigonometrica di Fourier nell'intervallo [-, ] la funzione f(x) = ex . Dimostrare che n=1 1 1 + n2 = 1 2 coth - 1 (3) Sviluppare in serie trigonometrica di Fourier nell

  15. Giant Planets and Cool Stars ASP Conference Series, Vol. xx, 1999

    E-Print Network [OSTI]

    Reid, Iain Neill

    Giant Planets and Cool Stars ASP Conference Series, Vol. xx, 1999 C. Griffith and M. Marley, eds at radial distances in accord both with M dwarf binaries and with the radial location of Jovian planets of origin for planets and binary stars. As part of this endeavor, we have undertaken a search for companions

  16. Community Detection from Location-Tagged Networks

    E-Print Network [OSTI]

    Liu, Zhi

    2015-01-01

    Many real world systems or web services can be represented as a network such as social networks and transportation networks. In the past decade, many algorithms have been developed to detect the communities in a network using connections between nodes. However in many real world networks, the locations of nodes have great influence on the community structure. For example, in a social network, more connections are established between geographically proximate users. The impact of locations on community has not been fully investigated by the research literature. In this paper, we propose a community detection method which takes locations of nodes into consideration. The goal is to detect communities with both geographic proximity and network closeness. We analyze the distribution of the distances between connected and unconnected nodes to measure the influence of location on the network structure on two real location-tagged social networks. We propose a method to determine if a location-based community detection...

  17. Helicopter magnetic survey conducted to locate wells

    SciTech Connect (OSTI)

    Veloski, G.A.; Hammack, R.W.; Stamp, V.; Hall, R.; Colina, K.

    2008-07-01

    A helicopter magnetic survey was conducted in August 2007 over 15.6 sq mi at the Naval Petroleum Reserve No. 3’s (NPR-3) Teapot Dome Field near Casper, Wyoming. The survey’s purpose was to accurately locate wells drilled there during more than 90 years of continuous oilfield operation. The survey was conducted at low altitude and with closely spaced flight lines to improve the detection of wells with weak magnetic response and to increase the resolution of closely spaced wells. The survey was in preparation for a planned CO2 flood for EOR, which requires a complete well inventory with accurate locations for all existing wells. The magnetic survey was intended to locate wells missing from the well database and to provide accurate locations for all wells. The ability of the helicopter magnetic survey to accurately locate wells was accomplished by comparing airborne well picks with well locations from an intense ground search of a small test area.

  18. Earthquake locations and seismic velocity models for Southern California

    E-Print Network [OSTI]

    Lin, Guoqing

    2007-01-01

    Linearized EarthquakeChapter 4. The COMPLOC Earthquake Location3-D Simultaneous Earthquake Locations and

  19. The summation of certain series 

    E-Print Network [OSTI]

    Holder, Leonard Irvin

    1951-01-01

    write //= / k =/ C~k-/J+ k~/ But since ~ ? = Z ?, we have ~ 2 g. ~ 2k=/ / / )=E- ? ' /I=/ ~C&~2! = (ig '=' a' Z(&p/(/ or, For p ~ 1, 2, 3 the sums are 7r B Now, if we subtract sides of equation (5-11), the series z= ~~. - we obtain from... A = ~ (/FZ) ~CF and ~ = ~ (/ ? ig. Now mr cot 8 F c/zt' 8' = ~ + ~i//g ~/n8 ZD/ BF ca F c ms' &/'ng s/'n E and cps (g p) ? ceo(s/e) ' cps(g-8) ? ccrc (agP Thus C ) ~ p( p amer~ ~u ca5 z /z 77cl ? &o5fz rrip a. nd 7j cr (' ) ? ZW//7 d VD 77...

  20. Hydrogen and Fuel Cells Webinar Series Kickoff | Department of...

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

    Hydrogen and Fuel Cells Webinar Series Kickoff Hydrogen and Fuel Cells Webinar Series Kickoff Presented at the State and Regional Initiatives Informational Call and Meeting Series...

  1. Climate Change Task Force Webinar Series | Department of Energy

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

    Climate Change Task Force Webinar Series Climate Change Task Force Webinar Series The four-part Climate Change Impacts and Indian Country webinar series provided tribal leaders an...

  2. Impurity-doped optical shock, detonation and damage location sensor

    DOE Patents [OSTI]

    Weiss, J.D.

    1995-02-07

    A shock, detonation, and damage location sensor providing continuous fiber-optic means of measuring shock speed and damage location, and could be designed through proper cabling to have virtually any desired crush pressure. The sensor has one or a plurality of parallel multimode optical fibers, or a singlemode fiber core, surrounded by an elongated cladding, doped along their entire length with impurities to fluoresce in response to light at a different wavelength entering one end of the fiber(s). The length of a fiber would be continuously shorted as it is progressively destroyed by a shock wave traveling parallel to its axis. The resulting backscattered and shifted light would eventually enter a detector and be converted into a proportional electrical signals which would be evaluated to determine shock velocity and damage location. The corresponding reduction in output, because of the shortening of the optical fibers, is used as it is received to determine the velocity and position of the shock front as a function of time. As a damage location sensor the sensor fiber cracks along with the structure to which it is mounted. The size of the resulting drop in detector output is indicative of the location of the crack. 8 figs.

  3. Impurity-doped optical shock, detonation and damage location sensor

    DOE Patents [OSTI]

    Weiss, Jonathan D. (Albuquerque, NM)

    1995-01-01

    A shock, detonation, and damage location sensor providing continuous fiber-optic means of measuring shock speed and damage location, and could be designed through proper cabling to have virtually any desired crush pressure. The sensor has one or a plurality of parallel multimode optical fibers, or a singlemode fiber core, surrounded by an elongated cladding, doped along their entire length with impurities to fluoresce in response to light at a different wavelength entering one end of the fiber(s). The length of a fiber would be continuously shorted as it is progressively destroyed by a shock wave traveling parallel to its axis. The resulting backscattered and shifted light would eventually enter a detector and be converted into a proportional electrical signals which would be evaluated to determine shock velocity and damage location. The corresponding reduction in output, because of the shortening of the optical fibers, is used as it is received to determine the velocity and position of the shock front as a function of time. As a damage location sensor the sensor fiber cracks along with the structure to which it is mounted. The size of the resulting drop in detector output is indicative of the location of the crack.

  4. Thermoacoustic instability - a dynamical system and time domain analysis

    E-Print Network [OSTI]

    Sayadi, Taraneh; Schmid, Peter; Richecoeur, Franck; Massot, Marc

    2013-01-01

    This study focuses on the Rijke tube problem, which includes features relevant to the modeling of thermoacoustic coupling in reactive flows: a compact acoustic source, an empirical model for the heat source, and nonlinearities. This system features both linear and nonlinear flow regimes with complex dynamical behavior. In order to synthesize accurate time-series, we tackle this problem from a numerical point-of-view, and start by proposing a dedicated solver designed for dealing with the underlying stiffness, in particular, the retarded time and the discontinuity at the location of the heat source. Stability analysis is performed on the limit of the low amplitude perturbations by means of the projection method proposed by Jarlebring (2008), which alleviates the linearization of the retarded term. The results are then compared to the analytical solution of the undamped system, in addition to the analysis based on Galerkin projection. The method provides insight into the consequence of the simplification due to...

  5. Locating and tracking assets using RFID 

    E-Print Network [OSTI]

    Kim, Gak Gyu

    2009-05-15

    , this research presents a math¬ematical model of using RFID (both handheld readers and stationary readers) for e?cient asset location. We derive the expected cost of locating RFID¬tagged objects in a multi¬area environment where hand¬held RF readers are used. We...

  6. Downhole delay assembly for blasting with series delay

    DOE Patents [OSTI]

    Ricketts, Thomas E. (Grand Junction, CO)

    1982-01-01

    A downhole delay assembly is provided which can be placed into a blasthole for initiation of explosive in the blasthole. The downhole delay assembly includes at least two detonating time delay devices in series in order to effect a time delay of longer than about 200 milliseconds in a round of explosions. The downhole delay assembly provides a protective housing to prevent detonation of explosive in the blasthole in response to the detonation of the first detonating time delay device. There is further provided a connection between the first and second time delay devices. The connection is responsive to the detonation of the first detonating time delay device and initiates the second detonating time delay device. A plurality of such downhole delay assemblies are placed downhole in unfragmented formation and are initiated simultaneously for providing a round of explosive expansions. The explosive expansions can be used to form an in situ oil shale retort containing a fragmented permeable mass of formation particles.

  7. Transportation Energy Futures Series: Projected Biomass Utilization...

    Office of Scientific and Technical Information (OSTI)

    Transportation Energy Futures Series: Projected Biomass Utilization for Fuels and Power in a Mature Market Ruth, M.; Mai, T.; Newes, E.; Aden, A.; Warner, E.; Uriarte, C.; Inman,...

  8. Paralytic Shellfish Poisoning: A Case Series

    E-Print Network [OSTI]

    Hurley, William; Wolterstorff, Cameron; MacDonald, Ryan; Shultz, Debora

    2014-01-01

    Schultz, RN * * Washington Poison Control Center, Seattle,arrest. CASE SERIES The poison center was contacted byby searching Washington Poison Center records from the 6-

  9. The Construction of Locative Situations: Locative Media and the Situationist International, Recuperation or Redux?

    E-Print Network [OSTI]

    McGarrigle, Conor

    2009-01-01

    closely aligned to the SI's construction of situations. ThisG (1957) Report on the Construction of Situations and on theThe Construction of Locative Situations: Locative Media and

  10. Department of Electrical and Computer Engineering Spring 2012 Seminar Series

    E-Print Network [OSTI]

    Pal, Ranadip

    interests include intelligent sensor networks, smart sensors and actuators, intelligent control, and fault and Control using Mobile Wireless Sensor Networks Time: March 2nd, 2012, 3:00 - 4:00 PM Location: Lankford Lab and control research projects at Micro-Aerial Vehicle and Sensor Network (MAVSeN) Laboratory at Louisiana Tech

  11. SC-RISE LECTURE SERIES BRIGHT HORIZONS IN SOLAR ENERGY

    E-Print Network [OSTI]

    are being developed including biomass, geothermal, hydropower, ocean thermal energy conversion, solar in technology development. The high capital costs typical of sustainable technologies coupled with the cyclic Time: 3:00 PM Location: A265 Bourns Hall Abstract: Low cost energy is critical to our lifestyles

  12. ECOS Inquiries Series -University of Montana Why are There Seasons?

    E-Print Network [OSTI]

    Brewer, Carol

    incoming solar radiation in the summer than in the winter. 2) The duration of daylight changes. In Missoula hours. Sunrise, sunset and solar noon times for any date and for any location in the world can above the horizon changes. In Missoula, MT, the maximum altitude of the sun (at solar noon

  13. Hanford Single Shell Tank Leak Causes and Locations - 241-TX Farm

    SciTech Connect (OSTI)

    Girardot, C. L.; Harlow, D> G.

    2014-07-22

    This document identifies 241-TX Tank Farm (TX Farm) leak causes and locations for the 100 series leaking tanks (241-TX-107 and 241-TX-114) identified in RPP-RPT-50870, Rev. 0, Hanford 241-TX Farm Leak Inventory Assessment Report. This document satisfies the TX Farm portion of the target (T04) in the Hanford Federal Facility Agreement and Consent Order milestone M-045-91F.

  14. Hanford Single-Shell Tank Leak Causes and Locations - 241-T Farm

    SciTech Connect (OSTI)

    Girardot, Crystal L.; Harlow, Donald G.

    2014-05-15

    This document identifies 241-T Tank Farm (T Farm) leak causes and locations for the 100 series leaking tanks (241-T-106 and 241-T-111) identified in RPP-RPT-55084, Rev. 0, Hanford 241-T Farm Leak Inventory Assessment Report. This document satisfies the T Farm portion of the target (T04) in the Hanford Federal Facility Agreement and Consent Order milestone M-045-91F.

  15. Hanford Single-Shell Tank Leak Causes and Locations - 241-C Farm

    SciTech Connect (OSTI)

    Girardot, Crystal L.; Harlow, Donald G.

    2013-07-30

    This document identifies 241-C Tank Farm (C Farm) leak causes and locations for the 100 series leaking tanks (241-C-101 and 241-C-105) identified in RPP-RPT-33418, Rev. 2, Hanford C-Farm Leak Inventory Assessments Report. This document satisfies the C Farm portion of the target (T04) in the Hanford Federal Facility Agreement and Consent Order milestone M-045-91F.

  16. Hanford Single-Shell Tank Leak Causes and Locations - 241-U Farm

    SciTech Connect (OSTI)

    Girardot, Crystal L.; Harlow, Donald G.

    2013-12-02

    This document identifies 241-U Tank Farm (U Farm) leak causes and locations for the 100 series leaking tanks (241-U-104, 241-U-110, and 241-U-112) identified in RPP-RPT-50097, Rev. 0, Hanford 241-U Farm Leak Inventory Assessment Report. This document satisfies the U-Farm portion of the target (T04) in the Hanford Federal Facility Agreement and Consent Order milestone M-045-91F.

  17. Hanford Single-Shell Tank Leak Causes and Locations - 241-A Farm

    SciTech Connect (OSTI)

    Girardot, Crystal L.; Harlow, Donald G.

    2013-09-10

    This document identifies 241-A Tank Farm (A Farm) leak causes and locations for the 100 series leaking tanks (241-A-104 and 241-A-105) identified in RPP-ENV-37956, Hanford A and AX Farm Leak Assessment Report. This document satisfies the A Farm portion of the target (T04) in the Hanford Federal Facility Agreement and Consent Order milestone M-045-91F.

  18. Earthquake Location, Direct, Global-Search Methods E 2449 Earthquake Location,

    E-Print Network [OSTI]

    Earthquake Location, Direct, Global-Search Methods E 2449 Earthquake Location, Direct, Global Kingdom Article Outline Glossary Definition of the Subject Introduction The Earthquake Location Problem or temporal av- erage of some characteristic of an earthquake, such as surface shaking intensity or moment

  19. A Yale Forest Forum Series Publication

    E-Print Network [OSTI]

    A Yale Forest Forum Series Publication Volume 6 2003 Number 3 Issue Summary Rural Communities and Forests A summary of a forum and workshop exploring the rural community perspective of managing the forest Land, Chadwick D. Oliver Series Editor Mary L. Tyrrell Rural Communities and Forests A summary

  20. Automatic Dirichlet series J.P. Allouche

    E-Print Network [OSTI]

    Allouche, Jean-Paul

    Automatic Dirichlet series J.­P. Allouche CNRS, LRI Bâ??atiment 490 F­91405 Orsay Cedex (France's theorem on the existence of logarithmic frequencies of symbols in automatic sequences is given, and certain infinite products are explicitly computed. Keywords: automatic sequences, Dirichlet series

  1. Addressing endogeneity in residential location models

    E-Print Network [OSTI]

    Guevara-Cue, Cristián Angelo

    2005-01-01

    Some empirical residential location choice models have reported dwelling-unit price estimated parameters that are small, not statistically significant, or even positive. This would imply that households are non-sensitive ...

  2. Techniques for Mobile Location Estimation in UMTS 

    E-Print Network [OSTI]

    Thomas, Nicholas J

    The subject area of this thesis is the locating of mobile users using the future 3rd generation spread spectrum communication system UMTS. The motivation behind this work is twofold: firstly the United States Federal ...

  3. A Survey on the Warehouse Location Problem

    E-Print Network [OSTI]

    Cohen, Joseph J.

    The warehouse location problem has assumed numerous formulations, and solutions have been devised using a variety of mathematical techniques. The development of this effort is examined and relevant models presented for evaluation.

  4. Developing a theory of nightclub location choice

    E-Print Network [OSTI]

    Crim, Stephen J. (Stephen Johnson)

    2008-01-01

    This work is an investigation of the factors that influence where nightclubs locate within a city. Nightclubs, like other social spaces, provide important social and economic benefits in the urban environment. As amenities, ...

  5. Alternative Fuel Infrastructure Associate Location: San Diego

    E-Print Network [OSTI]

    California at Davis, University of

    Alternative Fuel Infrastructure Associate Location: San Diego Basic Functions Center an Alternative Fuel Infrastructure Associate that has a passion for sustainability, the environment, and accelerating the transition to a sustainable world powered by clean energy! The Alternative Fuel Infrastructure

  6. UCDscholarcast Series 10 (Spring 2014)

    E-Print Network [OSTI]

    at the time for my dog Prince. Prince got run over by a bus the week before. I in bed but I have Prince's ghost under my side of the bed and I haven would surely love a poem, a poem about Prince. A true Prince, a noble

  7. Driver expectancy in locating automotive controls 

    E-Print Network [OSTI]

    Francis, Dawn Suzette

    1990-01-01

    DRIVER EXPECTANCY IN LOCATING AUTOMOTIVE CONTROLS A Thesis by DAWN SUZETTE FRANCIS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 1990... Major Subject: Industrial Engineering DRIVER EXPECTANCY IN LOCATING AUTOMOTIVE CONTROLS A Thesis by DAWN SUZETTE FRANCIS Approved as to style and content by: R. Dale Huchi son (Chair of Committee) Rodger . . ppa (Member) Waymon L ohnston (M er...

  8. Seismic Line Location Map Hot Pot Project, Humboldt County, Nevada 2010

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

    Michael Lane

    2010-01-01

    Seismic Line Location Map Hot Pot Project, Humboldt County, Nevada 2010. ArcGIS map package containing topographic base map, Township and Range layer, Oski BLM and private leases at time of survey, and locations, with selected shot points, of the five seismic lines.

  9. Seismic Line Location Map Hot Pot Project, Humboldt County, Nevada 2010

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

    Michael Lane

    Seismic Line Location Map Hot Pot Project, Humboldt County, Nevada 2010. ArcGIS map package containing topographic base map, Township and Range layer, Oski BLM and private leases at time of survey, and locations, with selected shot points, of the five seismic lines.

  10. Location theory and the location of industry along an interstate highway 

    E-Print Network [OSTI]

    Miller, James Patterson

    1965-01-01

    a greater gamble. This sect. ion has been devoted to s review of the fundamental factors underlying all plant location ss recognised in location theory. The next section will review some recent. empirical attempts to determine the actual... for this thesis was possible through the assistance provided )ointly by the Texas Highway Department and the Bureau of Public Roads. i. v TABLE OF CONTENTS Chapter Page INTRODUCTION Purpose Plan of Study REVIEW OF PLANT LOCATION CONCEPTS Introduction...

  11. THE AUSTRALIAN NATIONAL MONOGRAPHS IN SERIES/

    E-Print Network [OSTI]

    THE AUSTRALIAN NATIONAL UNIVERSITY Library MONOGRAPHS IN SERIES/ INDIVIDUAL MONOGRAPHS REC'D ON S12345678 Common call number THE AUSTRALIAN NATIONAL UNIVERSITY Library CML instruction Take in print

  12. Department of Mechanical Engineering 2014 Seminar Series

    E-Print Network [OSTI]

    Bernstein, Joseph B.

    Department of Mechanical Engineering 2014 Seminar Series Elliot Hui, Ph.D. Assistant Professor-on-a-chip diagnostic systems that run autonomously without off-chip controllers. bio: Elliot Hui is Assistant Professor

  13. Summer Series 2012 - Conversation with Omar Yaghi

    ScienceCinema (OSTI)

    Omar Yaghi

    2013-06-24

    Jeff Miller, head of Public Affairs, sat down in conversation with Omar Yaghi, director of the Molecular Foundry, in the first of a series of "powerpoint-free" talks on July 11th 2012, at Berkeley Lab.

  14. Summer Series 2012 - Conversation with Kathy Yelick

    SciTech Connect (OSTI)

    Kathy Yelick

    2012-07-23

    Jeff Miller, head of Public Affairs, sat down in conversation with Kathy Yelick, Associate Berkeley Lab Director, Computing Sciences, in the second of a series of "powerpoint-free" talks on July 18th 2012, at Berkeley Lab.

  15. SFI Speaker Series Jonah Levine Energy

    E-Print Network [OSTI]

    SFI Speaker Series April 8 Jonah Levine Energy Storage Researcher , UC Boulder the Grid Biofuel Center Boeing Grant 1 Dairy Life Cycle 2 SFI Member News 3 Green Campus 4

  16. Continuously-Variable Series-Elastic Actuator

    E-Print Network [OSTI]

    Mooney, Luke M.

    Actuator efficiency is an important factor in the design of powered leg prostheses, orthoses, exoskeletons, and legged robots. A continuously-variable series-elastic actuator (CV-SEA) is presented as an efficient actuator ...

  17. LEADERS IN SCIENCE AND TECHNOLOGY SEMINAR SERIES

    E-Print Network [OSTI]

    Tech has a long tradition of creating new knowledge and applying LEADERS IN SCIENCE AND TECHNOLOGY SEMINAR SERIES About Virginia Tech - National Capital Region The National Capital Region of Virginia Tech is dedicated

  18. CLEAN Webinar Series 2 | Open Energy Information

    Open Energy Info (EERE)

    JPG Triangle Right.JPG Webinar3.JPG Webinar4.JPG Webinar5.JPG Ret rieved from "http:en.openei.orgwindex.php?titleCLEANWebinarSeries2&oldid67800...

  19. CLEAN Webinar Series 4 | Open Energy Information

    Open Energy Info (EERE)

    WebinarHeader.JPG Webinar1.JPG Webinar2.JPG Webinar3.JPG Webinar4.JPG Triangle Right.JPG Webinar5.JPG Ret rieved from "http:en.openei.orgwindex.php?titleCLEANWebinarSeries4...

  20. CLEAN Webinar Series 1 | Open Energy Information

    Open Energy Info (EERE)

    WebinarHeader.JPG Webinar1.JPG Triangle Right.JPG Webinar2.JPG Webinar3.JPG Webinar4.JPG Webinar5.JPG Ret rieved from "http:en.openei.orgwindex.php?titleCLEANWebinarSeries...

  1. CLEAN Webinar Series 3 | Open Energy Information

    Open Energy Info (EERE)

    JPG Webinar3.JPG Triangle Right.JPG Webinar4.JPG Webinar5.JPG Ret rieved from "http:en.openei.orgwindex.php?titleCLEANWebinarSeries3&oldid678001...

  2. Security Lab Series Introduction to Web Technologies

    E-Print Network [OSTI]

    Tao, Lixin

    Security Lab Series Introduction to Web Technologies Prof. Lixin Tao Pace University http...........................................................................................................................................1 1.1 Web ArchitectureScript..................................................................................16 4.6 Creating Your First JavaServer Page Web Application

  3. Summer Series 2012 - Conversation with Kathy Yelick

    ScienceCinema (OSTI)

    Yelick, Kathy

    2013-06-24

    Jeff Miller, head of Public Affairs, sat down in conversation with Kathy Yelick, Associate Berkeley Lab Director, Computing Sciences, in the second of a series of "powerpoint-free" talks on July 18th 2012, at Berkeley Lab.

  4. SHORT ROTATION WOODY CROPS FACTSHEET SERIES # 5

    E-Print Network [OSTI]

    Minnesota, University of

    SHORT ROTATION WOODY CROPS FACTSHEET SERIES # 5 Sustainability of SRWC for Energy1 WHAT of the SRWC systems and the relatively narrow genetic base in Salix, Populus or Eucalyptus SRWC may promote

  5. NESLS Summer Seminar Series | ornl.gov

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

    NESLS Summer Seminar Series Jun 17 2015 02:00 PM - 03:00 PM Kord Smith, Ph.D., Massachusetts Institute of Technology (MIT), Cambridge NESLS JICS Auditorium, Building 5100, Room 128...

  6. Solar Instructor Series A PROJECT BY

    E-Print Network [OSTI]

    Authori es Having Jurisdic on Inspectors, Code Officials Workshops under the Solar Instructor Series: 1 9. NEC ® 2011 Code Updates PV 10. Integra ng Solar into Exis ng Curricula 11. How to Land Your

  7. 2014-2015Series Public Health

    E-Print Network [OSTI]

    MacAdam, Keith

    2014-2015Series College of Public Health University of Kentucky is accredited by the Southern) .......................................................... 3 *BST 330 Statistical Thinking for Population Health *CPH 201 Introduction to Public Health

  8. Physics 116A Winter 2011 The Alternating Series Test

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Physics 116A Winter 2011 The Alternating Series Test An alternating series is defined to be a series of the form: S = # # n=0 (-1) n a n , (1) where all the a n > 0. The alternating series test but property 1 and/or property 2 do not hold, then the alternating series test is inconclusive. Note

  9. Physics 116A Winter 2011 The Alternating Series Test

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Physics 116A Winter 2011 The Alternating Series Test An alternating series is defined to be a series of the form: S = n=0 (-1)n an , (1) where all the an > 0. The alternating series test is a set and/or property 2 do not hold, then the alternating series test is inconclusive. Note that property 1

  10. Sustainable Transportation Fellowship Location: San Diego, CA

    E-Print Network [OSTI]

    California at Davis, University of

    Sustainable Transportation Fellowship Location: San Diego, CA Our clean energy future depends. · Regular web posts on other clean transportation topics. · Assist in other tasks, as assigned. The ideal and a clean, healthy environment. To bring about such a future, each of us must make wise choices now

  11. Secure Location Verification Using Radio Broadcast

    E-Print Network [OSTI]

    Nesterenko, Mikhail

    , exploits the difference between propagation speeds of radio and sound waves to estimate the position1 Secure Location Verification Using Radio Broadcast Adnan Vora and Mikhail Nesterenko Abstract of the prover. In this paper, we propose a solution that leverages the broadcast nature of the radio signal

  12. Secure Location Verification Using Radio Broadcast

    E-Print Network [OSTI]

    Nesterenko, Mikhail

    the difference between propagation speeds of radio and sound waves to estimate the position of the proverSecure Location Verification Using Radio Broadcast Adnan Vora and Mikhail Nesterenko Computer. In this paper, we propose a solution that leverages the broadcast nature of the radio signal emitted

  13. OPTIMAL LOCATION OF ISOLATION VALVES IN WATER

    E-Print Network [OSTI]

    Mays, Larry W.

    CHAPTER 7 OPTIMAL LOCATION OF ISOLATION VALVES IN WATER DISTRIBUTION SYSTEMS: A RELIABILITY The cornerstone of any healthy population is access to safe drinking water. The goal of the United Nations International Drinking Water Supply and Sanitation Decade from 1981 to 1990 was safe drinking water for all

  14. Ontology-based Disambiguation of Spatiotemporal Locations

    E-Print Network [OSTI]

    Hyvönen, Eero

    , in the semantic portal MuseumFinland3 [7] a location parton- omy4 was used for annotating museum artifacts. #12;A problem when creating a semantic cultural heritage portal is that places, both modernFinland originate from regions that no longer exist and/or are not part of Finland but of Russia with new names

  15. Locating Secret Messages in Images Ian Davidson

    E-Print Network [OSTI]

    Davidson, Ian

    Locating Secret Messages in Images Ian Davidson Computer Science, SUNY Albany 1400 Washington in innocuous media such as images, while steganalysis is the field of detecting these secret messages contributing the most to the energy calculations of an image are deemed outliers. Typically, of the top third

  16. www.elsevier.com/locate/visres polarization

    E-Print Network [OSTI]

    Boal, Jean

    .elsevier.com/locate/visres Cuttlefish use polarization sensitivity in predation on silvery fish Nadav Shashar a,b, Roland Hagan c, Jean of cuttlefish, we examined the preference of Sepia officina/is when presented with fish whose polarization reflection was greatly reduced versus fish whose polarization reflection was not affected. Cuttlefish preyed

  17. SQUARE SUMMABLE POWER SERIES Louis de Branges Preface ...

    E-Print Network [OSTI]

    1911-01-10

    The space C(z) of square summable power series is the set of power series ...... model of the linear system is constructed in a Hilbert space of power series with ...

  18. Restoration of Short Periods of Missing Energy Use and Weather Data Using Cubic Spline and Fourier Series Approaches: Qualitative Analysis 

    E-Print Network [OSTI]

    Baltazar, J. C.; Claridge, D. E.

    2002-01-01

    The paper presents seventeen approaches that use cubic splines and Fourier series for restoring short term missing data in time series of building energy use and weather data. The study is based on twenty samples of hourly data, each at least one...

  19. Restoration of Short Periods of Missing Energy Use and Weather Data Using Cubic Spline and Fourier Series Approaches: Qualitative Analysis 

    E-Print Network [OSTI]

    Baltazar-Cervantes, J. C.; Claridge, D. E.

    2002-01-01

    This paper presents seventeen approaches that use cubic splines and Fourier series for restoring short term missing data in time series of building energy use and weather data. The study is based on twenty samples of hourly data, each at least one...

  20. Noise pair velocity and range echo location system

    DOE Patents [OSTI]

    Erskine, D.J.

    1999-02-16

    An echo-location method for microwaves, sound and light capable of using incoherent and arbitrary waveforms of wide bandwidth to measure velocity and range (and target size) simultaneously to high resolution is disclosed. Two interferometers having very long and nearly equal delays are used in series with the target interposed. The delays can be longer than the target range of interest. The first interferometer imprints a partial coherence on an initially incoherent source which allows autocorrelation to be performed on the reflected signal to determine velocity. A coherent cross-correlation subsequent to the second interferometer with the source determines a velocity discriminated range. Dithering the second interferometer identifies portions of the cross-correlation belonging to a target apart from clutter moving at a different velocity. The velocity discrimination is insensitive to all slowly varying distortions in the signal path. Speckle in the image of target and antenna lobing due to parasitic reflections is minimal for an incoherent source. An arbitrary source which varies its spectrum dramatically and randomly from pulse to pulse creates a radar elusive to jamming. Monochromatic sources which jigger in frequency from pulse to pulse or combinations of monochromatic sources can simulate some benefits of incoherent broadband sources. Clutter which has a symmetrical velocity spectrum will self-cancel for short wavelengths, such as the apparent motion of ground surrounding target from a sidelooking airborne antenna. 46 figs.

  1. Noise pair velocity and range echo location system

    DOE Patents [OSTI]

    Erskine, David J. (Oakland, CA)

    1999-01-01

    An echo-location method for microwaves, sound and light capable of using incoherent and arbitrary waveforms of wide bandwidth to measure velocity and range (and target size) simultaneously to high resolution. Two interferometers having very long and nearly equal delays are used in series with the target interposed. The delays can be longer than the target range of interest. The first interferometer imprints a partial coherence on an initially incoherent source which allows autocorrelation to be performed on the reflected signal to determine velocity. A coherent cross-correlation subsequent to the second interferometer with the source determines a velocity discriminated range. Dithering the second interferometer identifies portions of the cross-correlation belonging to a target apart from clutter moving at a different velocity. The velocity discrimination is insensitive to all slowly varying distortions in the signal path. Speckle in the image of target and antenna lobing due to parasitic reflections is minimal for an incoherent source. An arbitrary source which varies its spectrum dramatically and randomly from pulse to pulse creates a radar elusive to jamming. Monochromatic sources which jigger in frequency from pulse to pulse or combinations of monochromatic sources can simulate some benefits of incoherent broadband sources. Clutter which has a symmetrical velocity spectrum will self-cancel for short wavelengths, such as the apparent motion of ground surrounding target from a sidelooking airborne antenna.

  2. Bibliography of the Scripps Institution of Oceanography Reference Series 2002

    E-Print Network [OSTI]

    Lett, Phyllis C.

    2003-01-01

    Scripps Institution of Oceanography Reference Series. MarchSCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLL~ CALIFORNIAOF THE SCRIPPS INSTITUTION OF OCEANOGRAPHY REF ERENCE SERIES

  3. Bibliography of the Scripps Institution of Oceanography Reference Series 1997

    E-Print Network [OSTI]

    Jennings, Paige A.

    1998-01-01

    SCRIPPS INSTITUTION OF OCEANOGRAPHY REFERENCE SERIES 97-01Scripps Institution of Oceanography Reference Series 1997.held at Scripps Institution of Oceanography 19 August 1997.

  4. Tribal Renewable Energy Webinar Series | Department of Energy

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

    Training Tribal Renewable Energy Webinar Series Tribal Renewable Energy Webinar Series The DOE Office of Indian Energy Policy and Programs, in partnership with Western Area...

  5. Chassis Dynamometer Testing of Parallel and Series Diesel Hybrid...

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

    Chassis Dynamometer Testing of Parallel and Series Diesel Hybrid Buses Chassis Dynamometer Testing of Parallel and Series Diesel Hybrid Buses Emissions and fuel economy data were...

  6. Building America Best Practices Series Vol. 14: Energy Renovations...

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

    Building America Best Practices Series Vol. 14: Energy Renovations - HVAC: A Guide for Contractors to Share with Homeowners Building America Best Practices Series Vol. 14: Energy...

  7. DOE's 2015 Tribal Renewable Energy Webinar Series to Kick Off...

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

    Area Power Administration, will continue its sponsorship of the Tribal Renewable Energy Webinar Series in 2015. The series is part of DOE's coordinated efforts to provide...

  8. Space Radiation and Cataracts (LBNL Summer Lecture Series)

    ScienceCinema (OSTI)

    Blakely, Eleanor

    2011-04-28

    Summer Lecture Series 2009: Eleanor Blakely, radiation biologist of the Life Sciences Division at Lawrence Berkeley National Laboratory, has been a scientist at Berkeley Lab since 1975. She is studying the effect of radiation on cataracts which concerns not only cancer patients, but also astronauts. As astronauts spend increasingly longer time in space, the effects of cosmic radiation exposure will become an increasingly important health issue- yet there is little human data on these effects. Blakely reviews this emerging field and the contributions made at Berkeley Lab

  9. Mobile Homophily and Social Location Prediction

    E-Print Network [OSTI]

    Bapierre, Halgurt; Groh, Georg

    2015-01-01

    The mobility behavior of human beings is predictable to a varying degree e.g. depending on the traits of their personality such as the trait extraversion - introversion: the mobility of introvert users may be more dominated by routines and habitual movement patterns, resulting in a more predictable mobility behavior on the basis of their own location history while, in contrast, extrovert users get about a lot and are explorative by nature, which may hamper the prediction of their mobility. However, socially more active and extrovert users meet more people and share information, experiences, believes, thoughts etc. with others. which in turn leads to a high interdependency between their mobility and social lives. Using a large LBSN dataset, his paper investigates the interdependency between human mobility and social proximity, the influence of social networks on enhancing location prediction of an individual and the transmission of social trends/influences within social networks.

  10. Menstrual cycle effects on spatial location tasks 

    E-Print Network [OSTI]

    Andrew, Sarah

    2013-02-22

    abilities (Halpem, 1992; Voyer et al. , 1995). However, there is one spatial ability test where women demonstrate an advantage over men. This female advantage spatial ability is known as spaflal location memory (Eals & Silvermen, 1994; Silverman & Eals..., Mock & Erbaugh, 1961) and a brief daily diary, which recorded subjective moods (i. e. , anxiety, sadness, anger, happiness, and energy level). The participants recorded their daily moods in the daily diary by marking a spot on a 10 cm visual analogue...

  11. Alternative Fueling Station Locator | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And StatisticsProgram ManagerCorridor Designations in 11Alternative Fueling Station Locator

  12. Location of Narrowband Spikes in Solar Flares

    E-Print Network [OSTI]

    Arnold O. Benz; Pascal Saint-Hilaire; Nicole Vilmer

    2001-12-19

    Narrowband spikes of the decimeter type have been identified in dynamic spectrograms of Phoenix-2 of ETH Zurich and located in position with the Nancay Radioheliograph at the same frequency. The spike positions have been compared with the location of hard X-ray emission and the thermal flare plasma in soft X-rays and EUV lines. The decimetric spikes are found to be single sources located some 20" to 400" away from the flare site in hard or soft X-rays. In most cases there is no bright footpoint nearby. In at least two cases the spikes are near loop tops. These observations do not confirm the widely held view that the spike emission is produced by some loss-cone instability masering near the footpoints of flare loops. On the other hand, the large distance to the flare sites and the fact that these spikes are all observed in the flare decay phase make the analyzed spike sources questionable sites for the main flare electron acceleration. They possibly indicate coronal post-flare acceleration sites.

  13. Semantics of Functional and Locative Relations in Rongga

    E-Print Network [OSTI]

    Aryawibawa, I. Nyoman

    2010-01-01

    Many scholars have proposed a universal set of locative relations. Herskovits’s comprehensive study of English locative relations found that locative concepts such as inclusion, support and contiguity, and coincidence are basic in English. Her...

  14. Location Prediction in Social Media Based on Tie Strength 

    E-Print Network [OSTI]

    McGee, Jeffrey A

    2013-04-29

    We propose a novel network-based approach for location estimation in social media that integrates evidence of the social tie strength between users for improved location estimation. Concretely, we propose a location estimator – Friendly...

  15. Series connected OLED structure and fabrication method

    DOE Patents [OSTI]

    Foust, Donald Franklin; Balch, Ernest Wayne; Duggal, Anil Raj; Heller, Christian Maria; Guida, Renato; Nealon, William Francis; Faircloth, Tami Janene

    2006-05-23

    A light emitting device comprises a plurality of organic light emitting diode (OLED) modules. The OLED modules are arranged into a series group where the individual OLED modules are electrically connected in series. The device is configured to be coupled to a power supply. A display is also provided. The display includes a plurality of OLED modules arranged to depict a shape selected from the group consisting of at least one letter, at least one number, at least one image, and a combination thereof.

  16. Energy Department Announces Student Teams, Location for Solar...

    Office of Environmental Management (EM)

    Student Teams, Location for Solar Decathlon 2015 Energy Department Announces Student Teams, Location for Solar Decathlon 2015 February 13, 2014 - 1:00pm Addthis News Media Contact...

  17. Optimization Online - p-facility Huff location problem on networks

    E-Print Network [OSTI]

    Rafael Blanquero

    2014-10-30

    Oct 30, 2014 ... Abstract: The p-facility Huff location problem aims at locating facilities on a competitive environment so as to maximize the market share.

  18. Research Site Locations for Current and Former EERE Postdoctoral...

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

    Research Site Locations for Current and Former EERE Postdoctoral Awards, from the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy. Facility Location...

  19. Open Location-Oriented Services for the Web

    E-Print Network [OSTI]

    Wilde, Erik

    2008-01-01

    Location Management for Mobile Devices. In Proceedings ofof wireless data services and mobile devices can take fullof location-awareness and mobile devices. Conclusions This

  20. Scientific Innovation Through Integration Capabilities Series

    E-Print Network [OSTI]

    and quantify metabolites in complex biofluids êê NMR with radiological capabilities êê Combined confocal(5948):1670-1673. ABOUT EMSL EMSL, a U.S. Department of Energy national scientific user facility located at Pacific

  1. Biomass thermal conversion research at SERI

    SciTech Connect (OSTI)

    Milne, T. A.; Desrosiers, R. E.; Reed, T. B.

    1980-09-01

    SERI's involvement in the thermochemical conversion of biomass to fuels and chemicals is reviewed. The scope and activities of the Biomass Thermal Conversion and Exploratory Branch are reviewed. The current status and future plans for three tasks are presented: (1) Pyrolysis Mechanisms; (2) High Pressure O/sub 2/ Gasifier; and (3) Gasification Test Facility.

  2. Harmonic oscillator: an analysis via Fourier series

    E-Print Network [OSTI]

    A. S. de Castro

    2013-09-30

    The Fourier series method is used to solve the homogeneous equation governing the motion of the harmonic oscillator. It is shown that the general solution to the problem can be found in a surprisingly simple way for the case of the simple harmonic oscillator. It is also shown that the damped harmonic oscillator is susceptible to the analysis.

  3. Frontiers in Global Change Seminar Series

    E-Print Network [OSTI]

    Frontiers in Global Change Seminar Series Short-lived Climate Pollutants: A Second Front in Climate, is not sufficient to ward off this near-term risk. Mitigation of four short-term climate warming pollutants has the Climate and Clean Air Coalition. The seminar will describe the recent scientific developments that led

  4. SERIES Workshop, stanbul Rapid Seismic Assessment

    E-Print Network [OSTI]

    SERIES Workshop, stanbul Rapid Seismic Assessment fProcedures for Turkish Building StockStock A initiated by Disaster and Emergency Management Presidency (AFAD)(AFAD) To develop standard rapid assessment to their safety ( i k)(risk) B ildi i i t d f th t tBuilding is inspected from the street: Number of stories Plan

  5. Series 8000 Available in 3 lengths

    E-Print Network [OSTI]

    Landers, Robert G.

    is subjected to automated performance testing prior to shipment. LCM-1 LO-COG ® DC Servo MotorsSeries 8000 magnets enclosed in heavy-gauge steel return rings · Diamond turned commutators ensure maximum brush life · Shaft-mounted pulleys and gears · Ball bearings · Multiple windings · Electromechanical brakes

  6. VPL-E Series Data Projectors

    E-Print Network [OSTI]

    Saskatchewan, University of

    lter Eco-friendly,GoodTCO,and Easy Operation The VPL-E Series is an Excellent Choice for Education consumption, allowing users to make significant savings on their electricity expenses. Simple Projector in education or business. The values are approximate. VPL-EX120 Conventional Model 6000 hours Longer Lamp

  7. Frontiers in Global Change Seminar Series

    E-Print Network [OSTI]

    's research group. The seminar will present the development of our U.S. monitoring and forecasting systemFrontiers in Global Change Seminar Series Towards a global drought monitoring, forecasting, activities under the Group of Earth Observations (GEO) and the World Climate Research Programme have

  8. Frontiers in Chemical Imaging Seminar Series

    E-Print Network [OSTI]

    Frontiers in Chemical Imaging Seminar Series Presented by Anthony (Tony) van Buuren Ph.D. Nanoscale National Laboratory Abstract Securing this nation's energy future will require the development of new research on nanoporous materials is driven by their use in targets for high energy physics experiments

  9. Frontiers in Chemical Imaging Seminar Series

    E-Print Network [OSTI]

    Frontiers in Chemical Imaging Seminar Series S cience and Technology of Multifunctional Oxide Materials Science Division, Argonne National Laboratory Abstract New paradigms in the research and development of novel multifunctional oxide and nanocarbon thin films are providing the bases for new physics

  10. Frontiers in Chemical Imaging Seminar Series

    E-Print Network [OSTI]

    and the Materials Research Society. His research interests focus on the development of Z-contrast scanningFrontiers in Chemical Imaging Seminar Series Presented by Dr. Stephen J Pennycook, Ph.D. Materials and Adjoint Professor in the Dept. of Physics and Astronomy, Vanderbilt University. For the development

  11. Frontiers in Chemical Imaging Seminar Series

    E-Print Network [OSTI]

    Frontiers in Chemical Imaging Seminar Series X-ray Imaging at the Nanoscale Presented by Ian Mc-ray microscopy has blossomed into a popular and rich methodology, opening the door to new research-ray microscopy beamline at APS in 1997. Ian subsequently oversaw the development of the APS Sector 2 beamlines

  12. Frontiers in Chemical Imaging Seminar Series

    E-Print Network [OSTI]

    Frontiers in Chemical Imaging Seminar Series Advancing Methods for Labeling, Staining, Imaging of Neurosciences University of California, San Diego Abstract A grand goal in neuroscience research will highlight development and application of new contrasting methods and imaging tools that have allowed us

  13. Frontiers in Chemical Imaging Seminar Series

    E-Print Network [OSTI]

    Frontiers in Chemical Imaging Seminar Series Presented by Kannan M. Krishnan, Ph.D. Departments of Materials Science and Physics University of Washington Abstract There has been a renaissance in magnetism. Central to this work are innovations in chemical synthesis of nanoparticles, their size-dependent magnetic

  14. Working Papers Series Paper 1 November 2009

    E-Print Network [OSTI]

    1 ITC Working Papers Series Paper 1 ­ November 2009 Reporting on flood risk perception. Academic standards apply for citing and referencing source. #12;2 Reporting on flood risk perception's in bedijkte termen) and MVW (2005) with the report "Flood Risks and Safety in the Netherlands" (Veiligheid

  15. ENERGY SERIES "Emerging High Power Conversion Technologies"

    E-Print Network [OSTI]

    Bergman, Keren

    SEMINAR: ENERGY SERIES "Emerging High Power Conversion Technologies" Dujic Drazen Professor, Power of embedded renewable energy sources. Whatever the renewable source of the prime energy is (wind, solar, hydro, storage or use. This is where power electronics come into a play, as key enabling technology for flexible

  16. Plant Pathology 290 Graduate Seminar Series

    E-Print Network [OSTI]

    Ishida, Yuko

    Plant Pathology 290 Graduate Seminar Series Winter 2015, CRN 87368 Seminars: Mondays, 9:00am-10:00am 115 Hutchison Date Speaker Title January 5 Steve Whitham, Professor Department of Plant Pathology, Phakopsora pachyrhizi January 12 Andy Jackson, Professor Emeritus Department of Plant and Microbial Biology

  17. Plant Pathology 290 Graduate Seminar Series

    E-Print Network [OSTI]

    Ishida, Yuko

    Plant Pathology 290 Graduate Seminar Series Fall 2014 CRN: 57411 Mondays 9:00-10:00am 115 Hutchison Storer Seminar Speaker Professor, Plant Pathology University of Wisconsin-Madison Multi-gene copy number Detection of plant diseases by smell. October 27 Jeremy Warren, PhD Candidate, Plant Pathology Exit Seminar

  18. Plant Pathology 290 Graduate Seminar Series

    E-Print Network [OSTI]

    Ishida, Yuko

    Plant Pathology 290 Graduate Seminar Series Spring 2015 Seminars: 9:00am - Mondays 115 Hutchison CRN 47034 Date Speaker Title March 30 Venkatesan Sundaresan, Professor Department of Plant Biology UC of grapevine diseases. May 18 Margaret Lloyd, Ph.D. Candidate Department of Plant Pathology, Gordon Lab UC

  19. Getting Started Guide ESA Series Spectrum Analyzers

    E-Print Network [OSTI]

    Anlage, Steven

    Getting Started Guide ESA Series Spectrum Analyzers This manual provides documentation yourself with the symbols and their meaning before operating this analyzer. WARNING Warning denotes, if not correctly performed or adhered to, could result in damage to or destruction of the analyzer. Do not proceed

  20. Other Reports In This Series September, 1990

    E-Print Network [OSTI]

    Martin, Alain

    Other Reports In This Series September, 1990 d i g i t a l Western Research Laboratory 100 Hamilton Avenue Palo Alto, California 94301 USA #12; ­ 1 ­ WRL Research Reports ``Titan System Manual.'' ``Multi­ WRL Research Report 86/1, September 1986. ael J. K. Nielsen. WRL Research Report 87/8, April 1988

  1. Physics Meets Biology (LBNL Summer Lecture Series)

    ScienceCinema (OSTI)

    Chu, Steve [Director, LBNL

    2011-04-28

    Summer Lecture Series 2006: If scientists could take advantage of the awesomely complex and beautiful functioning of biologys natural molecular machines, their potential for application in many disciplines would be incalculable. Nobel Laureate and Director of the Lawrence Berkeley National Laboratory Steve Chu explores Possible solutions to global warming and its consequences.

  2. UC Laboratory Safety Systemwide Webinar Series

    E-Print Network [OSTI]

    California at San Diego, University of

    UC Laboratory Safety Systemwide Webinar Series Webinars are being developed and will be scheduled Force Report on Improving the Culture of Laboratory Safety in Academic Institutions Speaker: Dr. Robert with existing Cal/OSHA Requirements Speaker: Ken Smith, Systemwide Laboratory Safety Manager PPE Requirements

  3. Environmental Research Group 2015 Spring Seminar Series

    E-Print Network [OSTI]

    :00 Estimating the Environmental Impacts of New Technologies Using Agent-Based Modeling Shelie Miller CenterEnvironmental Research Group 2015 Spring Seminar Series April 17, 2015 Gregg 320, 12:00 ­ 1 changes to a design will have the greatest influence on environmental performance at this crucial stage

  4. Elsevier Oceanography Series, 52 GLOBAL ECOLOGICAL

    E-Print Network [OSTI]

    Duffy, David Cameron

    Elsevier Oceanography Series, 52 GLOBAL ECOLOGICAL CONSEQUENCES OF THE 1982-83 EL NINO 30602 ABSTRACT Duffy, D.C., 1989. Seabirds and the 1982-1984 El Nino-Southern Oscillation The 1982-1984 El Nino and associated events affected seabirds in the Pacific and Atlantic oceans. Effects ranged

  5. JANUARY 2015 WSU/DSO SPEAKER SERIES

    E-Print Network [OSTI]

    Berdichevsky, Victor

    , music critic of the Detroit Free Press Friday, 11:45 a.m. at SMRH Kawai is the official piano Auditorium 5351 Cass Avenue Detroit, 48202 Max M. Fisher Music Center 3711 Woodward Avenue Detroit, 48201 SERIES THE MUSIC DIRECTOR'S VISION FOR DETROIT Leonard Slatkin, music director Friday, 11:45 a.m. at SMRH

  6. UNIVERSITY OF CALIFORNIA, IRVINE CECS Seminar Series

    E-Print Network [OSTI]

    Demsky, Brian

    , in particular ESL power estimation, embedded multicore SW development, fast virtual platforms, and applicationUNIVERSITY OF CALIFORNIA, IRVINE CECS Seminar Series Presents Design Technologies for Embedded the complexity of multi-billion transistor IC designs with dozens of heterogeneous processing engines, advanced

  7. Civil & Environmental Engineering Distinguished Seminar Series

    E-Print Network [OSTI]

    life. Mild wind may provide us useful electric energy in addition to positive effects on urban will be discussed in this talk. Moreover a methodology of using small wind turbines for dual purposes, improvingCivil & Environmental Engineering Distinguished Seminar Series Soon-Duck Kwon, Ph. D. KOCED Wind

  8. Geography & Regional Development Speaker Series Spring 2008

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    Geography & Regional Development Speaker Series Spring 2008 January 18th - Leila Harris (University', and geographies of environmental politics January 25th - Jenny Lee (University of Arizona) Departmental climate and student experiences in graduate geography programs February 1st - Deborah Thien (California State - Long

  9. Tel: Name: Rm. Tel: Location: Rm.

    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 RoomPreservationBio-Inspired Solar FuelTechnologyTel: Name: Rm. Tel: Location: Rm. Oct 2, 2015 Amin,

  10. Sandia National Laboratories: Locations: Kauai Test Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation ofAlbuquerque Albuquerque Housing Education Recreation Locations LifeKauai Test

  11. Sandia National Laboratories: Locations: Livermore, California

    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 ofAlbuquerque Albuquerque Housing Education Recreation Locations LifeKauai

  12. Hanford Single-Shell Tank Leak Causes and Locations - 241-SX Farm

    SciTech Connect (OSTI)

    Girardot, Crystal L.; Harlow, Donald G.

    2014-01-08

    This document identifies 241-SX Tank Farm (SX Farm) leak causes and locations for the 100 series leaking tanks (241-SX-107, 241-SX-108, 241-SX-109, 241-SX-111, 241-SX-112, 241-SX-113, 241-SX-114, and 241-SX-115) identified in RPP-ENV-39658, Rev. 0, Hanford SX-Farm Leak Assessments Report. This document satisfies the SX Farm portion of the target (T04) in the Hanford Federal Facility Agreement and Consent Order milestone M-045-91F.

  13. Hanford Single-Shell Tank Leak Causes and Locations - 241-BY and 241-TY Farm

    SciTech Connect (OSTI)

    Girardot, Crystal L.; Harlow, Donald G.

    2013-11-19

    This document identifies 241-BY Tank Farm (BY Farm) and 241-TY Tank Farm (TY Farm) leak causes and locations for the 100 series leaking tanks (241-BY-103, 241-TY-103, 241-TY-104, 241-TY-105, and 241-TY-106) identified in RPP-RPT-43704, Hanford BY Farm Leak Assessments Report, and in RPP-RPT-42296, Hanford TY Farm Leak Assessments Report. This document satisfies the BY and TY Farm portion of the target (T04) in Hanford Federal Facility Agreement and Consent Order milestone M-045-91F.

  14. Hanford Single-Shell Tank Leak Causes and Locations - 241-BY and 241-TY Farm

    SciTech Connect (OSTI)

    Girardot, Crystal L.; Harlow, Donald G.

    2014-09-04

    This document identifies 241-BY Tank Farm (BY Farm) and 241-TY Tank Farm (TY Farm) lead causes and locations for the 100 series leaking tanks (241-BY-103, 241-TY-103, 241-TY-104, 241-TY-105 and 241-TY-106) identified in RPP-RPT-43704, Hanford BY Farm Leak Assessments Report, and in RPP-RPT-42296, Hanford TY Farm Leak Assessments Report. This document satisfies the BY and TY Farm portion of the target (T04) in the Hanford Federal Facility Agreement and Consent Order milestone M-045-91F.

  15. Local-time effect on small space-time scale

    E-Print Network [OSTI]

    V. A. Panchelyuga; V. A. Kolombet; M. S. Panchelyuga; S. E. Shnoll

    2006-10-18

    The paper presents an investigation of local-time effect - one of the manifestations of macroscopic fluctuations phenomena. Was shown the existence of the named effect for longitudinal distance between locations of measurements up to 500 meters. Also a structure of intervals distribution in neighborhood of local-time peak was studied and splitting of the peak was found out. Obtained results lead to conclusion about sharp anisotropy of space-time.

  16. Reduction in maximum time uncertainty of paired time signals

    DOE Patents [OSTI]

    Theodosiou, G.E.; Dawson, J.W.

    1981-02-11

    Reduction in the maximum time uncertainty (t/sub max/ - t/sub min/) of a series of paired time signals t/sub 1/ and t/sub 2/ varying between two input terminals and representative of a series of single events where t/sub 1/ less than or equal to t/sub 2/ and t/sub 1/ + t/sub 2/ equals a constant, is carried out with a circuit utilizing a combination of OR and AND gates as signal selecting means and one or more time delays to increase the minimum value (t/sub min/) of the first signal t/sub 1/ closer to t/sub max/ and thereby reduce the difference. The circuit may utilize a plurality of stages to reduce the uncertainty by factors of 20 to 800.

  17. The Effect of Ionospheric Models on Electromagnetic Pulse Locations

    SciTech Connect (OSTI)

    Fenimore, Edward E.; Triplett, Laurie A.

    2014-07-01

    Locations of electromagnetic pulses (EMPs) determined by time-of-arrival (TOA) often have outliers with significantly larger errors than expected. In the past, these errors were thought to arise from high order terms in the Appleton-Hartree equation. We simulated 1000 events randomly spread around the Earth into a constellation of 22 GPS satellites. We used four different ionospheres: “simple” where the time delay goes as the inverse of the frequency-squared, “full Appleton-Hartree”, the “BobRD integrals” and a full raytracing code. The simple and full Appleton-Hartree ionospheres do not show outliers whereas the BobRD and raytracing do. This strongly suggests that the cause of the outliers is not additional terms in the Appleton-Hartree equation, but rather is due to the additional path length due to refraction. A method to fix the outliers is suggested based on fitting a time to the delays calculated at the 5 GPS frequencies with BobRD and simple ionospheres. The difference in time is used as a correction to the TOAs.

  18. ENGI 9420 Lecture Notes 7 -Fourier Series Page 7.01 7. Fourier Series and Fourier Transforms

    E-Print Network [OSTI]

    George, Glyn

    ENGI 9420 Lecture Notes 7 - Fourier Series Page 7.01 7. Fourier Series and Fourier Transforms Fourier series have multiple purposes, including the provision of series solutions to some linear partial differential equations with boundary conditions (as will be reviewed in Chapter 8). Fourier transforms

  19. Main Goal Properties of Infinite Series Workshop #10 Uniform Convergence and Differentiability Series of Functions P Math 311: Advanced Calculus

    E-Print Network [OSTI]

    Vasconcelos, Wolmer

    Main Goal Properties of Infinite Series Workshop #10 Uniform Convergence and Differentiability Vasconcelos Set 6 Advanced Calculus #12;Main Goal Properties of Infinite Series Workshop #10 Uniform Convergence and Differentiability Series of Functions P Outline 1 Main Goal 2 Properties of Infinite Series 3

  20. Computer Lab 4. Power series methods. Maple's dsolve command can be invoked with an option called series, which finds

    E-Print Network [OSTI]

    Slastikov, Valeriy V.

    independent solutions. The same command produces series with logarithmic singularitiesComputer Lab 4. Power series methods. Maple's dsolve command can be invoked with an option called series, which finds power series about x = 0 of solutions of differential equations. For example, if you

  1. An Energy Efficient Location Service for Mobile Ad Hoc etworks

    E-Print Network [OSTI]

    Varela, Carlos

    the distance traveled by the location update and query packets and, thus, at reducing the overall energy cost by the location update and query packets and, thus, to reduce the overall energy cost. 2 Energy Efficient LocationAn Energy Efficient Location Service for Mobile Ad Hoc etworks Zijian Wang1 , Eyuphan Bulut1

  2. Summer Series 2012 - Conversation with Omar Yaghi (LBNL Summer Lecture Series)

    SciTech Connect (OSTI)

    Yaghi, Omar

    2012-07-11

    Jeff Miller, head of Public Affairs, sat down in conversation with Omar Yaghi, director of the Molecular Foundry, in the first of a series of "powerpoint-free" talks on July 11th 2012, at Berkeley Lab.

  3. Assessment of the Revised 3410 Building Filtered Exhaust Stack Sampling Probe Location

    SciTech Connect (OSTI)

    Yu, Xiao-Ying; Recknagle, Kurtis P.; Glissmeyer, John A.

    2013-12-01

    In order to support the air emissions permit for the 3410 Building, Pacific Northwest National Laboratory performed a series of tests in the exhaust air discharge from the reconfigured 3410 Building Filtered Exhaust Stack. The objective was to determine whether the location of the air sampling probe for emissions monitoring meets the applicable regulatory criteria governing such effluent monitoring systems. In particular, the capability of the air sampling probe location to meet the acceptance criteria of ANSI/HPS N13.1-2011 , Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stack and Ducts of Nuclear Facilities was determined. The qualification criteria for these types of stacks address 1) uniformity of air velocity, 2) sufficiently small flow angle with respect to the axis of the duct, 3) uniformity of tracer gas concentration, and 4) uniformity of tracer particle concentration. Testing was performed to conform to the quality requirements of NQA-1-2000. Fan configurations tested included all fan combinations of any two fans at a time. Most of the tests were conducted at the normal flow rate, while a small subset of tests was performed at a slightly higher flow rate achieved with the laboratory hood sashes fully open. The qualification criteria for an air monitoring probe location are taken from ANSI/HPS N13.1-2011 and are paraphrased as follows with key results summarized: 1. Angular Flow—The average air velocity angle must not deviate from the axis of the stack or duct by more than 20°. Our test results show that the mean angular flow angles at the center two-thirds of the ducts are smaller than 4.5? for all testing conditions. 2. Uniform Air Velocity—The acceptance criterion is that the COV of the air velocity must be ? 20% across the center two thirds of the area of the stack. Our results show that the COVs of the air velocity across the center two-thirds of the stack are smaller than 2.9% for all testing conditions. 3. Uniform Concentration of Tracer Gases—The uniformity of the concentration of potential contaminants is first tested using a tracer gas to represent gaseous effluents. The tracer is injected downstream of the fan outlets and at the junction downstream fan discharges meet. The acceptance criteria are that 1) the COV of the measured tracer gas concentration is ?20% across the center two-thirds of the sampling plane and 2) at no point in the sampling plane does the concentration vary from the mean by >30%. Our test results show that 1) the COV of the measured tracer gas concentration is < 2.9% for all test conditions and 2) at no point in the sampling plane does the concentration vary from the mean by >6.5%. 4. Uniform Concentration of Tracer Particles—Tracer particles of 10-?m aerodynamic diameter are used for the second demonstration of concentration uniformity. The acceptance criterion is that the COV of particle concentration is ? 20% across the center two thirds of the sampling plane. Our test results indicate that the COV of particle concentration is <9.9% across the center two-thirds of the sampling plane among all testing conditions. Thus, the reconfigured 3410 Building Filtered Exhaust Stack was determined to meet the qualification criteria given in the ANSI/HPS N13.1-2011 standard. Changes to the system configuration or operations outside the bounds described in this report (e.g., exhaust stack velocity changes, relocation of sampling probe, and addition of fans) may require re-testing or re-evaluation to determine compliance.

  4. The Location Pattern of Malls in Texas 

    E-Print Network [OSTI]

    Han, Dongjin

    2014-09-05

    Malls are common places in urban areas. They present us with safe and convenient environments to shop and to spend leisure time. Although malls have an important presence in our lives, not much empirical research on malls ...

  5. Locating hardware faults in a parallel computer

    DOE Patents [OSTI]

    Archer, Charles J.; Megerian, Mark G.; Ratterman, Joseph D.; Smith, Brian E.

    2010-04-13

    Locating hardware faults in a parallel computer, including defining within a tree network of the parallel computer two or more sets of non-overlapping test levels of compute nodes of the network that together include all the data communications links of the network, each non-overlapping test level comprising two or more adjacent tiers of the tree; defining test cells within each non-overlapping test level, each test cell comprising a subtree of the tree including a subtree root compute node and all descendant compute nodes of the subtree root compute node within a non-overlapping test level; performing, separately on each set of non-overlapping test levels, an uplink test on all test cells in a set of non-overlapping test levels; and performing, separately from the uplink tests and separately on each set of non-overlapping test levels, a downlink test on all test cells in a set of non-overlapping test levels.

  6. Location Independent Professional Project: A Pilot Study

    SciTech Connect (OSTI)

    Hudson, J.A.; Long, J.P.; Miller, M.M.

    1999-02-01

    This pilot study project explored the problem of providing access to the nomadic worker who desires to connect a computer through network access points at a number of different locations within the SNL/NM campus as well as outside the campus. The design and prototype development gathered knowledge that may allow a design to be developed that could be extended to a larger number of SNL/NM network drop boxes. The focus was to provide a capability for a worker to access the SNL IRN from a network drop box (e.g. in a conference room) as easily as when accessing the computer network from the office normally used by the worker. Additional study was done on new methods to authenticate the off campus worker, and protect and control access to data.

  7. Uniqueness for spherically convergent multiple trigonometric series

    E-Print Network [OSTI]

    Ash, J. Marshall

    ) = T into the complex numbers can be represented in the form S(x) = a0 2 + n=1 an cos nx + bn sin nx. (1) Fourier sense if its partial sums sN (x) = a0 2 + N n=1 an cos nx + bn sin nx tend to f (x) in L2 , that is and suppose that another series S (x) = a0 2 + n=1 an cos nx + bn sin nx also converges at every x to f (x

  8. SYMBOLS FOR TIME = time variable

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    =forever) Cost spent to build variation point i at time i = index over variation points #12;SYMBOLS FOR TIME to account for net present value of money r = assumed interest rate i = index over variation points Cost Expected cost summed over all relevant time intervals Cost spent to build variation point i at time r

  9. Data series subtraction with unknown and unmodeled background noise

    E-Print Network [OSTI]

    Stefano Vitale; Giuseppe Congedo; Rita Dolesi; Valerio Ferroni; Mauro Hueller; Daniele Vetrugno; William Joseph Weber; Heather Audley; Karsten Danzmann; Ingo Diepholz; Martin Hewitson; Natalia Korsakova; Luigi Ferraioli; Ferran Gibert; Nikolaos Karnesis; Miquel Nofrarias; Henri Inchauspe; Eric Plagnol; Oliver Jennrich; Paul W. McNamara; Michele Armano; James Ira Thorpe; Peter Wass

    2014-08-04

    LISA Pathfinder (LPF), ESA's precursor mission to a gravitational wave observatory, will measure the degree to which two test-masses can be put into free-fall, aiming to demonstrate a residual relative acceleration with a power spectral density (PSD) below 30 fm/s$^2$/Hz$^{1/2}$ around 1 mHz. In LPF data analysis, the measured relative acceleration data series must be fit to other various measured time series data. This fitting is required in different experiments, from system identification of the test mass and satellite dynamics to the subtraction of noise contributions from measured known disturbances. In all cases, the background noise, described by the PSD of the fit residuals, is expected to be coloured, requiring that we perform such fits in the frequency domain. This PSD is unknown {\\it a priori}, and a high accuracy estimate of this residual acceleration noise is an essential output of our analysis. In this paper we present a fitting method based on Bayesian parameter estimation with an unknown frequency-dependent background noise. The method uses noise marginalisation in connection with averaged Welch's periodograms to achieve unbiased parameter estimation, together with a consistent, non-parametric estimate of the residual PSD. Additionally, we find that the method is equivalent to some implementations of iteratively re-weighted least-squares fitting. We have tested the method both on simulated data of known PSD, and to analyze differential acceleration from several experiments with the LISA Pathfinder end-to-end mission simulator.

  10. SERIE ETUDES ET DOCUMENTS DU CERDI SOCIAL PROTECTION FOR POVERTY REDUCTION IN

    E-Print Network [OSTI]

    Boyer, Edmond

    SERIE ETUDES ET DOCUMENTS DU CERDI SOCIAL PROTECTION FOR POVERTY REDUCTION IN TIMES OF CRISIS Kossi on social spending compiled thus far, and the unique cross-country database on poverty to explore the poverty-reducing role of social protection during financial crises. Using advan- ced panel data techniques

  11. Rev. December 2012 SERIES 2: Research

    E-Print Network [OSTI]

    Veiga, Pedro Manuel Barbosa

    and the 1921 Tulsa Race Riot. Robert N. Hower. 1993. (Located on shelf) 1 Report on the Tulsa Race Riot Disaster Relief. Photocopied typed draft, 38p. 2 Disaster Relief Committee. Tulsa County Chapter Report in Famous Case Dies." Obituary appearing in Tulsa World, 25 Aug 1977. Black Power and the Garvey Movement

  12. Modelling Time

    E-Print Network [OSTI]

    Burra G. Sidharth

    2008-09-03

    We briefly review two concepts of time - the usual time associated with "being" and more recent ideas, answering to the description of "becoming". The approximation involved in the former is examined. Finally we argue that it is (unpredictable) fluctuations that underlie time.

  13. Homodyne impulse radar hidden object locator

    DOE Patents [OSTI]

    McEwan, T.E.

    1996-04-30

    An electromagnetic detector is designed to locate an object hidden behind a separator or a cavity within a solid object. The detector includes a PRF generator for generating 2 MHz pulses, a homodyne oscillator for generating a 2 kHz square wave, and for modulating the pulses from the PRF generator. A transmit antenna transmits the modulated pulses through the separator, and a receive antenna receives the signals reflected off the object. The receiver path of the detector includes a sample and hold circuit, an AC coupled amplifier which filters out DC bias level shifts in the sample and hold circuit, and a rectifier circuit connected to the homodyne oscillator and to the AC coupled amplifier, for synchronously rectifying the modulated pulses transmitted over the transmit antenna. The homodyne oscillator modulates the signal from the PRF generator with a continuous wave (CW) signal, and the AC coupled amplifier operates with a passband centered on that CW signal. The present detector can be used in several applications, including the detection of metallic and non-metallic objects, such as pipes, studs, joists, nails, rebars, conduits and electrical wiring, behind wood wall, ceiling, plywood, particle board, dense hardwood, masonry and cement structure. The detector is portable, light weight, simple to use, inexpensive, and has a low power emission which facilitates the compliance with Part 15 of the FCC rules. 15 figs.

  14. Homodyne impulse radar hidden object locator

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1996-01-01

    An electromagnetic detector is designed to locate an object hidden behind a separator or a cavity within a solid object. The detector includes a PRF generator for generating 2 MHz pulses, a homodyne oscillator for generating a 2 kHz square wave, and for modulating the pulses from the PRF generator. A transmit antenna transmits the modulated pulses through the separator, and a receive antenna receives the signals reflected off the object. The receiver path of the detector includes a sample and hold circuit, an AC coupled amplifier which filters out DC bias level shifts in the sample and hold circuit, and a rectifier circuit connected to the homodyne oscillator and to the AC coupled amplifier, for synchronously rectifying the modulated pulses transmitted over the transmit antenna. The homodyne oscillator modulates the signal from the PRF generator with a continuous wave (CW) signal, and the AC coupled amplifier operates with a passband centered on that CW signal. The present detector can be used in several applications, including the detection of metallic and non-metallic objects, such as pipes, studs, joists, nails, rebars, conduits and electrical wiring, behind wood wall, ceiling, plywood, particle board, dense hardwood, masonry and cement structure. The detector is portable, light weight, simple to use, inexpensive, and has a low power emission which facilitates the compliance with Part 15 of the FCC rules.

  15. TAGGING, TRACKING AND LOCATING WITHOUT GPS

    SciTech Connect (OSTI)

    Cordaro, J.; Coleman, T.; Shull, D.

    2012-07-08

    The Savannah River National Laboratory (SRNL) was requested to lead a Law Enforcement Working Group that was formed to collaborate on common operational needs. All agencies represented on the working group ranked their need to tag, track, and locate a witting or unwitting target as their highest priority. Specifically, they were looking for technologies more robust than Global Positioning Satellite (GPS), could communicate back to the owner, and worked where normal cell phone communications did not work or were unreliable. SRNL brought together multiple technologies in a demonstration that was held in in various Alaska venues, including metropolitan, wilderness, and at-sea that met the working group's requirements. Using prototypical technologies from Boeing, On Ramp, and Fortress, SRNL was able to demonstrate the ability to track personnel and material in all scenarios including indoors, in heavily wooden areas, canyons, and in parking garages. In all cases GPS signals were too weak to measure. Bi-directional communication was achieved in areas that Wi-Fi, cell towers, or traditional radios would not perform. The results of the exercise will be presented. These technologies are considered ideal for tracking high value material such has nuclear material with a platform that allows seamless tracking anywhere in the world, indoors or outdoors.

  16. SAPLE: Sandia Advanced Personnel Locator Engine.

    SciTech Connect (OSTI)

    Procopio, Michael J.

    2010-04-01

    We present the Sandia Advanced Personnel Locator Engine (SAPLE) web application, a directory search application for use by Sandia National Laboratories personnel. SAPLE's purpose is to return Sandia personnel 'results' as a function of user search queries, with its mission to make it easier and faster to find people at Sandia. To accomplish this, SAPLE breaks from more traditional directory application approaches by aiming to return the correct set of results while placing minimal constraints on the user's query. Two key features form the core of SAPLE: advanced search query interpretation and inexact string matching. SAPLE's query interpretation permits the user to perform compound queries when typing into a single search field; where able, SAPLE infers the type of field that the user intends to search on based on the value of the search term. SAPLE's inexact string matching feature yields a high-quality ranking of personnel search results even when there are no exact matches to the user's query. This paper explores these two key features, describing in detail the architecture and operation of SAPLE. Finally, an extensive analysis on logged search query data taken from an 11-week sample period is presented.

  17. A Fast and Accurate Universal Kepler Solver with Stumpff Series

    E-Print Network [OSTI]

    Wisdom, Jack

    2015-01-01

    We derive and present a fast and accurate solution of the initial value problem for Keplerian motion in universal variables that does not use the Stumpff series. We find that it performs better than methods based on the Stumpff series.

  18. Spectral Analysis of Spatial Series + W.R. Tobler*

    E-Print Network [OSTI]

    Tobler, Waldo

    series. There are many examples: stock market prices, weather records, population of a city over a number, if there are such interpretations, why has this method of analysis not already been applied to spatial series? Taking the first

  19. 2009 Spring Tuesday Seminar Series Sponsored by UPGG and IGSP

    E-Print Network [OSTI]

    Richardson, David

    2009 Spring Tuesday Seminar Series Sponsored by UPGG and IGSP 12:30pm ­ Room 147 Nanaline Duke 01: Ashley Chi) #12;2009 Spring Tuesday Seminar Series (cont.) Sponsored by UPGG and IGSP 12:30pm ­ Room 147

  20. Wind Energy 101 Webinar Series Part 5: Project Development and...

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

    Energy 101 Webinar Series Part 5: Project Development and Siting Wind Energy 101 Webinar Series Part 5: Project Development and Siting August 6, 2015 2:00PM to 3:00PM EDT During...

  1. Quantum Time

    E-Print Network [OSTI]

    John Ashmead

    2010-05-05

    Normally we quantize along the space dimensions but treat time classically. But from relativity we expect a high level of symmetry between time and space. What happens if we quantize time using the same rules we use to quantize space? To do this, we generalize the paths in the Feynman path integral to include paths that vary in time as well as in space. We use Morlet wavelet decomposition to ensure convergence and normalization of the path integrals. We derive the Schr\\"odinger equation in four dimensions from the short time limit of the path integral expression. We verify that we recover standard quantum theory in the non-relativistic, semi-classical, and long time limits. Quantum time is an experiment factory: most foundational experiments in quantum mechanics can be modified in a way that makes them tests of quantum time. We look at single and double slits in time, scattering by time-varying electric and magnetic fields, and the Aharonov-Bohm effect in time.

  2. A unified Bayesian framework for relative microseismic location

    E-Print Network [OSTI]

    Poliannikov, Oleg V.

    We study the problem of determining an unknown microseismic event location relative to previously located events using a single monitoring array in a monitoring well. We show that using the available information about the ...

  3. Locations of Smart Grid Demonstration and Large-Scale Energy...

    Office of Environmental Management (EM)

    Locations of Smart Grid Demonstration and Large-Scale Energy Storage Projects Locations of Smart Grid Demonstration and Large-Scale Energy Storage Projects Map of the United States...

  4. A unified Bayesian framework for relative microseismic location

    E-Print Network [OSTI]

    Poliannikov, Oleg V.

    2013-01-01

    We study the problem of determining an unknown microseismic event location relative to previously located events using a single monitoring array in a monitoring well. We show that using the available information about the ...

  5. The Cricket Indoor Location System Nissanka Bodhi Priyantha

    E-Print Network [OSTI]

    applications. Cricket consists of location beacons that are attached to the ceiling of a building to compute their own locations. This active-beacon passive-listener architecture is scalable with respect

  6. Fire Alarm Control Panel is located in Switchgear

    E-Print Network [OSTI]

    KEY: NORTH CHDD-South Floor 1 Fire Alarm Control Panel is located in Switchgear Room #CD11A Panel is located in Switchgear Room #CD11A on Basement Level Evacuation Route Exit Restroom Fire

  7. Policy-aware sender anonymity in Location-based services

    E-Print Network [OSTI]

    Vyas, Avinash

    2011-01-01

    LBS Server Location Server CSP Sender Figure 1.1: LBS ModelService Provider, denoted as CSP, the Location Server,is either the MPC in the CSP’s network or an Over-The-Top (

  8. The ear as a location for wearable vital signs monitoring

    E-Print Network [OSTI]

    He, David Da

    Obtaining vital signs non-invasively and in a wearable manner is essential for personal health monitoring. We propose the site behind the ear as a location for an integrated wearable vital signs monitor. This location is ...

  9. A Look at Health Care Buildings - Where are they located

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

    Location Return to: A Look at Health Care Buildings How large are they? How many employees are there? Where are they located? How old are they? Who owns and occupies them? Are they...

  10. Dynamic resource location in peer-to-peer networks 

    E-Print Network [OSTI]

    Nathuji, Ripal Babubhai

    2004-09-30

    Resource location is a necessary operation for computer applications. In large scale peer-to-peer systems, random search is a scalable approach for locating dynamic resources. Current peer-to-peer systems can be partitioned into those which rely...

  11. Taylor Series as Wide-sense Biorthogonal Wavelet Decomposition

    E-Print Network [OSTI]

    H. M. de Oliveira; R. D. Lins

    2015-02-05

    Pointwise-supported generalized wavelets are introduced, based on Dirac, doublet and further derivatives of delta. A generalized biorthogonal analysis leads to standard Taylor series and new Dual-Taylor series that may be interpreted as Laurent Schwartz distributions. A Parseval-like identity is also derived for Taylor series, showing that Taylor series support an energy theorem. New representations for signals called derivagrams are introduced, which are similar to spectrograms. This approach corroborates the impact of wavelets in modern signal analysis.

  12. FEMP Offers New Training Series on Renewable Energy Technologies...

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

    the grid. By completing the series, participants will learn to: Understand geographicclimate considerations, renewable energy technology capabilities and constraints, and...

  13. Balmer-Like Series for Baryon Resonances

    E-Print Network [OSTI]

    Losanow-Kirchbach, M

    1998-01-01

    The pole positions of various baryon resonances have been found to reveal a well pronounced clustering, the so-called H"ohler cluster. In a previous work, the H"ohler clusters have been shown to be identical to Lorentz multiplets of the type (1/2+l', 1/2+l')*[(1/2,0)+(0,1/2)] with l' integer. Here we show that the cluster positions are well described by means of a Balmer-series like recursive mass formula.

  14. Fermilab | Physics for Everyone | Lecture Series

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvan Racah861MayArt SeriesMore fundamental particles

  15. Property:Event/Location | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to: navigation, searchEnvironmentalMitigationEstimatedTimeMedian Jump

  16. Process for reducing series resistance of solar cell metal contact systems with a soldering flux etchant

    DOE Patents [OSTI]

    Coyle, R. T. (Lakewood, CO); Barrett, Joy M. (Eldorado Springs, CO)

    1984-01-01

    Disclosed is a process for substantially reducing the series resistance of a solar cell having a thick film metal contact assembly thereon while simultaneously removing oxide coatings from the surface of the assembly prior to applying solder therewith. The process includes applying a flux to the contact assembly and heating the cell for a period of time sufficient to substantially remove the series resistance associated with the assembly by etching the assembly with the flux while simultaneously removing metal oxides from said surface of said assembly.

  17. The Harmonic Series Diverges Again and Again Steven J. Kifowit

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    The Harmonic Series Diverges Again and Again Steven J. Kifowit Prairie State College Terra A. Stamps Prairie State College The harmonic series, n=1 1 n = 1 + 1 2 + 1 3 + 1 4 + 1 5 + · · · , is one, the harmonic series provides the instructor with a wealth of opportunities. The leaning tower of lire (Johnson

  18. Series Input Modular Architecture for Driving Multiple LEDs

    E-Print Network [OSTI]

    regulation is provided using a prototype of the proposed system with four series buck- boost converter cells, zane}@colorado.edu Abstract ­ This paper introduces a modular power converter architecture based on series input connected converter cells with independent outputs that each drive a small series string

  19. PCI E Series Register-Level Programmer Manual

    E-Print Network [OSTI]

    Oh, Paul

    DAQ PCI E Series Register-Level Programmer Manual Multifunction I/O Boards for PCI Bus Computers PCI E Series RLPM November 1998 Edition Part Number 341079B-01 #12;Internet Support E-mail: support;Important Information Warranty The PCI E Series boards are warranted against defects in materials

  20. TIME EVOLUTION OF FLARES IN GRB 130925A: JET PRECESSION IN A BLACK HOLE ACCRETION SYSTEM

    SciTech Connect (OSTI)

    Hou, Shu-Jin; Liu, Tong; Gu, Wei-Min; Sun, Mou-Yuan; Lu, Ju-Fu [Department of Astronomy and Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen, Fujian 361005 (China); Lin, Da-Bin [Department of Physics and GXU-NAOC Center for Astrophysics and Space Sciences, Guangxi University, Nanning, Guangxi 530004 (China); Wu, Xue-Feng, E-mail: tongliu@xmu.edu.cn [Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008 (China)

    2014-01-20

    GRB 130925A, composed of three gamma-ray emission episodes and a series of orderly flares, has been detected by Swift, Fermi, Konus-Wind, and INTEGRAL. If the third weakest gamma-ray episode can be considered a giant flare, we find that after the second gamma-ray episode observed by INTEGRAL located at about 2000 s, a positive relation exists between the time intervals of the adjacent flares and the time since the episode. We suggest that the second gamma-ray episode and its flares originate from the resumption of the accretion process due to the fragments from the collapsar falling back; such a relation may be related to a hyperaccretion disk around a precessed black hole (BH). We propose that the origin and time evolution of the flares, and the approximately symmetrical temporal structure and spectral evolution of the single flare can be explained well by a jet precession model. In addition, the mass and spin of the BH can be constrained, which indicates a stellar-mass, fast-rotating BH located in the center of GRB 130925A.

  1. TOPICS IN PROBABILISTIC LOCATION ESTIMATION IN WIRELESS NETWORKS

    E-Print Network [OSTI]

    Myllymäki, Petri

    TOPICS IN PROBABILISTIC LOCATION ESTIMATION IN WIRELESS NETWORKS Petri Kontkanen, Petri Myllym;TOPICS IN PROBABILISTIC LOCATION ESTIMATION IN WIRELESS NETWORKS Petri Kontkanen, Petri Myllym¨aki, Teemu, Spain, IEEE Press, 2004. TOPICS IN PROBABILISTIC LOCATION ESTIMATION IN WIRELESS NETWORKS Petri

  2. COMBINING LOCATION AND EXPRESSION DATA FOR PRINCIPLED DISCOVERY OF

    E-Print Network [OSTI]

    Hartemink, Alexander

    location data to guide the model induction process. We combine these two data modalities by al- lowing combine genomic location and expression data to guide the model induction process by permitting the formerCOMBINING LOCATION AND EXPRESSION DATA FOR PRINCIPLED DISCOVERY OF GENETIC REGULATORY NETWORK

  3. Risks of using AP locations discovered through war driving

    E-Print Network [OSTI]

    Kotz, David

    Risks of using AP locations discovered through war driving Minkyong Kim, Jeffrey J. Fielding the actual locations are often unavailable, they use estimated locations from war driving estimated through war driving. War driving is the process of collecting Wi-Fi beacons by driving or walking

  4. Location-based Sponsored Search Advertising George Trimponias1

    E-Print Network [OSTI]

    Papadias, Dimitris

    Location-based Sponsored Search Advertising George Trimponias1 , Ilaria Bartolini2 , Dimitris unprecedented opportunities for location-based advertising. In this work, we provide models and investigate the market for location-based sponsored search, where advertisers pay the search engine to be displayed

  5. Static and Dynamic Location Management in Distributed Mobile Environments

    E-Print Network [OSTI]

    Vaidya, Nitin

    Static and Dynamic Location Management in Distributed Mobile Environments P. Krishna y N. H. Vaidya for search, update and search-update. Static location management uses one combination of search, update the performance of di erent static location management strategies for various communicationand mobilitypatterns

  6. Time-Domain Electromagnetics At Kilauea Southwest Rift And South...

    Open Energy Info (EERE)

    Details Location Kilauea Southwest Rift And South Flank Area Exploration Technique Time-Domain Electromagnetics Activity Date Usefulness useful DOE-funding Unknown Notes The...

  7. Time-Domain Electromagnetics At Mauna Loa Northeast Rift Area...

    Open Energy Info (EERE)

    Activity Details Location Mauna Loa Northeast Rift Area Exploration Technique Time-Domain Electromagnetics Activity Date Usefulness useful DOE-funding Unknown Notes The...

  8. Time-Domain Electromagnetics At Hualalai Northwest Rift Area...

    Open Energy Info (EERE)

    Activity Details Location Hualalai Northwest Rift Area Exploration Technique Time-Domain Electromagnetics Activity Date Usefulness useful DOE-funding Unknown Notes Three...

  9. Time-Domain Electromagnetics At Kilauea East Rift Geothermal...

    Open Energy Info (EERE)

    Thomas, 1986) Exploration Activity Details Location Kilauea East Rift Geothermal Area Exploration Technique Time-Domain Electromagnetics Activity Date 1978 - 1987 Usefulness useful...

  10. Time-Domain Electromagnetics At Kilauea East Rift Geothermal...

    Open Energy Info (EERE)

    ENERGYGeothermal Home Exploration Activity: Time-Domain Electromagnetics At Kilauea East Rift Geothermal Area (Skokan, 1974) Exploration Activity Details Location Kilauea East...

  11. Adjusting flow station job to remote Nigerian location yields savings

    SciTech Connect (OSTI)

    Wooten, R.; Williams, E.C. (OPI International Inc., Houston, TX (United States))

    1994-05-02

    In September 1991, Chevron Nigeria Ltd. and Nigerian National Petroleum Crop. contracted Offshore Pipelines to design, procure, construct, install, and commission the Opuekeba 30,000 b/d crude-oil flow station on an offshore platform near Olero Creek, Nigeria, approximately 22 miles from the nearest deepwater access. Chevron's original project plan included bringing the flow station to the site in small packages and then assembling it in a lengthy field hook-up process. Offshore Pipelines developed a plan early in the project to maximize construction and hook-up in the fabrication yard, then transport the nearly complete structures to site by way of a newly dredged canal. What proved to be most difficult was the site location in Nigeria. Job planning and communication were important in the successful completion of the project. Keeping the components of the large and complex facility simple proved to be effective and efficient and played a key role in completing the project on time and within budget. The paper discusses overcoming obstacles, lift and depth constraints, dredging, fabrication, installation, and large-time problems.

  12. A Peer-to-Peer Spatial Cloaking Algorithm for Anonymous Location-based Services

    E-Print Network [OSTI]

    Mokbel, Mohamed F.

    of services than the proactive mode, but the on-demand incurs longer response time. Categories and Subject providers, reporting private location in- formation may lead to several privacy threats. In this pa- per, we the entire group of peers. Two modes of operations are supported within the proposed P2P spa- tial cloaking

  13. Theoretical Computer Science 332 (2005) 6381 www.elsevier.com/locate/tcs

    E-Print Network [OSTI]

    Chen, Peter

    2005-01-01

    Theoretical Computer Science 332 (2005) 63­81 www.elsevier.com/locate/tcs New bounds for randomized be decreased from (n) to (n/ w) in the case of a complete graph. Additionally, we introduce a class of graphs called r-partite directed collars and obtain analogous bounds on the expected delivery time

  14. A Measure of Loran Location-based Information Di Qiu, Sherman Lo, Per Enge

    E-Print Network [OSTI]

    Stanford University

    the security of a traditional cryptographic system. The location-based parameters are used to generate authentication protocol, Timed Efficient Stream Loss- tolerant Authentication (TESLA) is proposed. We proposed a mean of implementing TESLA on Loran for authentication. The analysis and experimental results

  15. ME/SE 762 Nonlinear Systems and Control Location: SOC B63

    E-Print Network [OSTI]

    Lin, Xi

    ME/SE 762 Nonlinear Systems and Control Location: SOC B63 Time: Tue & Thu 12-2 Instructor: Calin-4 #12;ME/SE 762 Nonlinear Systems and Control Prerequisites: a grad-level class on linear systems: · stability analysis of nonlinear systems (with emphasis on Lyapunov theory) · nonlinear feedback control

  16. Improved techniques for studying the temporal and spatial behavior of fish in a fixed location

    E-Print Network [OSTI]

    as a function of time and space in a fixed, three-dimensional volume. One example is the optimal design of techniques that minimize the mortality of fish approaching hydroelectric dams or the cooling intakes for positioning optimally the receiving hydrophones to minimize the location measurement errors, the development

  17. LAVI: A Location Aware Virtual Infrastructure for VANETs Rohan B. Golatkar

    E-Print Network [OSTI]

    Chen, Yu

    individual vehicle will not stay at a location for an extended period of time, statistically there are some vehicles available as long as the density of vehicles is reasonably high. LAVI creates a virtually stable- mation. I. INTRODUCTION Vehicular Ad hoc Networks (VANETs) allow vehicles to communicate through peers

  18. Signal Processing 83 (2003) 25932605 www.elsevier.com/locate/sigpro

    E-Print Network [OSTI]

    Ray, Asok

    2003-01-01

    Signal Processing 83 (2003) 2593­2605 www.elsevier.com/locate/sigpro Calibration and estimation rights reserved. doi:10.1016/j.sigpro.2003.07.010 #12;2594 A. Ray, S. Phoha / Signal Processing 83 (2003 of redundant signals for real-time monitoring and control Asok Raya;, Shashi Phohab aMechanical Engineering

  19. Signal Processing 84 (2004) 11151130 www.elsevier.com/locate/sigpro

    E-Print Network [OSTI]

    Ray, Asok

    2004-01-01

    Signal Processing 84 (2004) 1115­1130 www.elsevier.com/locate/sigpro Symbolic dynamic analysis.V. All rights reserved. doi:10.1016/j.sigpro.2004.03.011 #12;1116 A. Ray / Signal Processing 84 (2004 is stationary at the fast time scale of the process dynamics; 0165-1684/$ - see front matter ? 2004 Elsevier B

  20. Sport Date/Time Location Basketball Mon. Sept. 14 7:30 9:30pm

    E-Print Network [OSTI]

    Boonstra, Rudy

    Arena * Centennial Arena Commander Arena Commander Arena Outdoor Soccer Tues. Sept. 8 ­ 5:30pm-7:30pm Thurs. Sept. 10 ­ 5:30pm-7:30pm Tues. Sept. 15 ­ 5:30pm-7:30pm Valley Rugby Wed. Sept 9 ­ 4:30-6pm Fri