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Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

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

E-Print Network (OSTI)

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

Son, Sang H.

2

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

E-Print Network (OSTI)

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

Son, Sang H.

3

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

E-Print Network (OSTI)

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

Son, Sang H.

4

May 21, 2011 - Getting Useful Real Time Feedback About Your Program Webinar (text version)  

NLE Websites -- All DOE Office Websites (Extended Search)

1, 2011 - Getting Useful Real Time Feedback About 1, 2011 - Getting Useful Real Time Feedback About Your Program Webinar (text version) Below is the text version of the Webinar titled "Getting Useful Real Time Feedback About Your Program" originally presented on May 21, 2011. (Please note: portions of the transcript below may be incomplete where indicated with an underlined placeholder space. Please refer to the webinar presentation recording and slides for additional information.) Operator: The broadcast is now starting. All attendees are listen only mode. Sargon de Jesus: Good afternoon. My name is Sargon de Jesus and I am with ERG, a contractor supporting the U.S. Department of Energy Better Buildings program. I wanna thank you for joining today's webinar titled "Getting useful real time feedback about your

5

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

E-Print Network (OSTI)

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

Paris-Sud XI, Université de

6

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

E-Print Network (OSTI)

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

Lu, Chenyang

7

Real-time feedback-controlled robotic fish for behavioral experiments with fish schools  

E-Print Network (OSTI)

1 Real-time feedback-controlled robotic fish for behavioral experiments with fish schools Daniel T- gations of collective animal behavior. In the case of fish schooling, new insights into processes such as collective decision making and leadership have been made in recent experiments in which live fish were

Leonard, Naomi

8

GPU-based Real-Time Soft Tissue Deformation with Cutting and Haptic Feedback  

E-Print Network (OSTI)

, such as natural orifice transluminal endo- scopic surgery, which can be considered as an evolution of laparoscopic the accuracy and limit the adverse effects of surgery. In order to register pre-operative data on the real

Paris-Sud XI, Université de

9

Real time ammonia detection in exhaled human breath using a distributed feedback quantum cascade laser based sensor  

E-Print Network (OSTI)

, thermoelectrically cooled, distributed feedback quantum cascade laser (DFB-QCL) based sensor platform concentration measurements are performed with a 2f wavelength modulation quartz enhanced photoacoustic exchange inside a compact QEPAS gas cell. An air-cooled DFB-QCL was designed to target the interference

10

Real time automated inspection  

DOE Patents (OSTI)

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

Fant, Karl M. (Minneapolis, MN); Fundakowski, Richard A. (Saint Paul, MN); Levitt, Tod S. (Minneapolis, MN); Overland, John E. (Plymouth, MN); Suresh, Bindinganavle R. (New Brighton, MN); Ulrich, Franz W. (Minneapolis, MN)

1985-01-01T23:59:59.000Z

11

Real time automated inspection  

DOE Patents (OSTI)

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

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

1985-05-21T23:59:59.000Z

12

Improving data collection and monitoring through real-time data analysis  

Science Journals Connector (OSTI)

Feedback based on real-time data is increasingly important for ICT-based interventions in the developing world. Applications such as facility inventories, summarization of patient data from community health workers, etc. need processes for analyzing ...

P. Lubell-Doughtie; P. Pokharel; M. Johnston; V. Modi

2013-01-01T23:59:59.000Z

13

Towards Real Time Diagnostics of Hybrid Welding Laser/GMAW  

SciTech Connect

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

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

2013-07-01T23:59:59.000Z

14

Convex Optimization: from Real-Time Embedded  

E-Print Network (OSTI)

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

Hall, Julian

15

Designing Distributed, Real-Time Systems  

E-Print Network (OSTI)

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

Mills, Kevin

16

An analytical limitation for time-delayed feedback control in autonomous systems  

E-Print Network (OSTI)

We prove an analytical limitation on the use of time-delayed feedback control for the stabilization of periodic orbits in autonomous systems. This limitation depends on the number of real Floquet multipliers larger than unity, and is therefore similar to the well-known odd number limitation of time-delayed feedback control. Recently, a two-dimensional example has been found, which explicitly demonstrates that the unmodified odd number limitation does not apply in the case of autonomous systems. We show that our limitation correctly predicts the stability boundaries in this case.

Edward W. Hooton; Andreas Amann

2012-09-08T23:59:59.000Z

17

Real-time Detection of Parametric Roll  

E-Print Network (OSTI)

Early Detection of PArametric ROLL on Ships #12;Real-time Detection of Parametric Roll: FullReal-time Detection of Parametric Roll: Full-scale Validation Roberto Galeazzi Assistant Professor-time Detection of Parametric Roll: Full-scale validation CeSOS Highlights & AMOS Visions Conference 2 DTU

Nørvåg, Kjetil

18

A Survey of Utility Experience with Real Time Pricing  

E-Print Network (OSTI)

with Real Time Pricing Xcel Energy (Public Service Companywith Real Time Pricing Xcel Energy, MDC (MinnesotaUtilities Division). 2001. Xcel Energys Real-Time Pricing

Barbose, Galen; Goldman, Charles; Neenan, Bernie

2004-01-01T23:59:59.000Z

19

Time-delayed feedback control of unstable periodic orbits near a subcritical Hopf bifurcation  

E-Print Network (OSTI)

We show that Pyragas delayed feedback control can stabilize an unstable periodic orbit (UPO) that arises from a generic subcritical Hopf bifurcation of a stable equilibrium in an n-dimensional dynamical system. This extends results of Fiedler et al. [PRL 98, 114101 (2007)], who demonstrated that such feedback control can stabilize the UPO associated with a two-dimensional subcritical Hopf normal form. Pyragas feedback requires an appropriate choice of a feedback gain matrix for stabilization, as well as knowledge of the period of the targeted UPO. We apply feedback in the directions tangent to the two-dimensional center manifold. We parameterize the feedback gain by a modulus and a phase angle, and give explicit formulae for choosing these two parameters given the period of the UPO in a neighborhood of the bifurcation point. We show, first heuristically, and then rigorously by a center manifold reduction for delay differential equations, that the stabilization mechanism involves a highly degenerate Hopf bifurcation problem that is induced by the time-delayed feedback. When the feedback gain modulus reaches a threshold for stabilization, both of the genericity assumptions associated with a two-dimensional Hopf bifurcation are violated: the eigenvalues of the linearized problem do not cross the imaginary axis as the bifurcation parameter is varied, and the real part of the cubic coefficient of the normal form vanishes. Our analysis of this degenerate bifurcation problem reveals two qualitatively distinct cases when unfolded in a two-parameter plane. In each case, Pyragas-type feedback successfully stabilizes the branch of small-amplitude UPOs in a neighborhood of the original bifurcation point, provided that the phase angle satisfies a certain restriction.

Genevieve Brown; Claire M. Postlethwaite; Mary Silber

2010-06-17T23:59:59.000Z

20

A REAL-TIME AUTONOMOUS NAVIGATION ARCHITECTURE  

E-Print Network (OSTI)

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

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Volatility of Power Grids under Real-Time Pricing  

E-Print Network (OSTI)

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

Roozbehani, Mardavij; Mitter, Sanjoy K

2011-01-01T23:59:59.000Z

22

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

E-Print Network (OSTI)

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

Jansen, James

23

Property:Real-Time | Open Energy Information  

Open Energy Info (EERE)

Real-Time Real-Time Jump to: navigation, search Property Name Real-Time Property Type String Pages using the property "Real-Time" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + No + 10-ft Wave Flume Facility + No + 11-ft Wave Flume Facility + No + 2 2-ft Flume Facility + No + 3 3-ft Wave Flume Facility + No + 5 5-ft Wave Flume Facility + No + 6 6-ft Wave Flume Facility + No + A Alden Large Flume + Yes + Alden Small Flume + Yes + Alden Tow Tank + Yes + Alden Wave Basin + Yes + B Breakwater Research Facility + No + Bucknell Hydraulic Flume + No + C Carderock 2-ft Variable Pressure Cavitation Water Tunnel + No + Carderock 3-ft Variable Pressure Cavitation Water Tunnel + No + Carderock Circulating Water Channel + No +

24

Real time vibraphone pitch and timbre classification :  

E-Print Network (OSTI)

A Pitch Tracking . . . . . . B Percussion Classi?cation CDIEGO Real Time Vibraphone Pitch and Timbre Classi?cation ABrown, G. J. , 2003: A multi-pitch tracking algorithm for

Larke, Kevin

2008-01-01T23:59:59.000Z

25

REAL TIME SYSTEM OPERATIONS 2006-2007  

E-Print Network (OSTI)

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

Eto, Joseph H.

2008-01-01T23:59:59.000Z

26

REAL TIME SYSTEM OPERATIONS 2006-2007  

SciTech Connect

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

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

2008-08-15T23:59:59.000Z

27

Axial Tomography from Digitized Real Time Radiography  

DOE R&D Accomplishments (OSTI)

Axial tomography from digitized real time radiographs provides a useful tool for industrial radiography and tomography. The components of this system are: x-ray source, image intensifier, video camera, video line extractor and digitizer, data storage and reconstruction computers. With this system it is possible to view a two dimensional x-ray image in real time at each angle of rotation and select the tomography plane of interest by choosing which video line to digitize. The digitization of a video line requires less than a second making data acquisition relatively short. Further improvements on this system are planned and initial results are reported.

Zolnay, A. S.; McDonald, W. M.; Doupont, P. A.; McKinney, R. L.; Lee, M. M.

1985-01-18T23:59:59.000Z

28

A model-based technique for real-time estimation of absolute fluorine concentration in a CF4/Ar plasma  

E-Print Network (OSTI)

A model-based technique for real-time estimation of absolute fluorine concentration in a CF4/Ar for quantitative interpretation of actinometric data to deduce bulk plasma fluorine concentration in a CF4/Ar, for application of real-time feedback control to plasma etching. Based upon a model of CF4 chemistry reaction

Terry, Fred L.

29

Real-Time Optimization Strategies for Building Systems  

E-Print Network (OSTI)

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

Victor Zavala

2011-07-02T23:59:59.000Z

30

Real Time Tailpipe Emission Measurements | Department of Energy  

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

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

31

Real Time Grid Reliability Management 2005  

SciTech Connect

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

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

2008-07-07T23:59:59.000Z

32

Production of real?time holographic interferograms  

Science Journals Connector (OSTI)

The equipment and procedure needed to produce view and record good quality real?time holographic interferograms in the undergraduate laboratory are described in step?by?step detail. Major concerns in the production processing and viewing are discussed further. Some investigations are suggested.

Keith Lubell; Robert Prigo

1987-01-01T23:59:59.000Z

33

Real time gamma-ray signature identifier  

DOE Patents (OSTI)

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

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

2012-05-15T23:59:59.000Z

34

Visualizations for Real-time Pricing Demonstration  

SciTech Connect

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

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

2014-10-13T23:59:59.000Z

35

Real-Time Demand Side Energy Management  

E-Print Network (OSTI)

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

Victor, A.; Brodkorb, M.

2006-01-01T23:59:59.000Z

36

Real Time Monitoring: Achieving Energy Efficiency  

E-Print Network (OSTI)

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

Rouse, S.

37

Subsystem real-time Time Dependent Density Functional Theory  

E-Print Network (OSTI)

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

Krishtal, Alisa; Pavanello, Michele

2015-01-01T23:59:59.000Z

38

Baton Rouge Complex Steam Real Time Optimization  

E-Print Network (OSTI)

Baton Rouge Complex Steam Real Time Optimization IETC 2014 New Orleans, Louisiana Tope Iyun ExxonMobil Chemical Company May 22, 2014 ESL-IE-14-05-32 Proceedings of the Thrity-Sixth Industrial Energy Technology Conference New Orleans, LA. May 20...-23, 2014 Proprietary 2 Agenda Baton Rouge Complex Steam System Overview Energy Efficiency Improvement Strategy Site-Wide Steam System Optimization Results Benefits/Wrap-Up ESL-IE-14-05-32 Proceedings of the Thrity-Sixth Industrial Energy...

Iyun, T.

2014-01-01T23:59:59.000Z

39

NREL: Awards and Honors - Real-Time Biomass Analysis  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-Time Biomass Analysis Developers: Dr. Bob Meglen, Dr. Steve Kelly, and Dr. Bonnie Hames, National Renewable Energy Laboratory. Real-Time Biomass Analysis (RTBA), is a portable...

40

Ames Lab 101: Real-Time 3D Imaging  

ScienceCinema (OSTI)

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

Zhang, Song

2012-08-29T23:59:59.000Z

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Distributed digital real-time control system for TCV tokamak  

Science Journals Connector (OSTI)

Abstract A new digital feedback control system (named the SCD Systme de Contrle Distribu) has been developed, integrated and used successfully to control TCV (Tokamak Configuration Variable) plasmas. The system is designed to be modular, distributed, and scalable, accommodating hundreds of diagnostic inputs and actuator outputs. With many more inputs and outputs available than previously possible, it offers the possibility to design advanced control algorithms with better knowledge of the plasma state and to coherently control all TCV actuators, including poloidal field (PF) coils, gas valves, the gyrotron powers and launcher angles of the electron cyclotron heating and current drive system (ECRH/ECCD) together with diagnostic triggering signals. The system consists of multiple nodes; each is a customised Linux desktop or embedded PC which may have local ADC and DAC cards. Each node is also connected to a memory network (reflective memory) providing a reliable, deterministic method of sharing memory between all nodes. Control algorithms are programmed as block diagrams in Matlab-Simulink providing a powerful environment for modelling and control design. The C code is generated automatically from the Simulink block diagram and compiled, with the Simulink Embedded Coder (SEC, formerly Real-Time Workshop Embedded Coder), into a Linux shared library (.so file) and distributed to target nodes in the discharge preparation phase. During the TCV discharge, an application on each node is executed that dynamically loads the shared library at runtime. In order to obtain reliable and reproducible real time execution of the algorithm, all interrupts to the CPU on each node are suspended just before firing the shot and re-enabled afterwards. Since installation, the new digital control system has been used for a multitude of plasma control applications, ranging from basic experiments of coil current and density control to advanced experiments of MHD (magnetohydrodynamics) and plasma profile control, as well as real-time plasma transport simulations. Recently, a real-time version of a plasma equilibrium reconstruction code was developed and implemented, providing the future possibility to control the plasma shape and profiles directly during the discharge evolution. This paper presents the architecture of the new control system, its integration into the TCV plant and a sample of control applications used for TCV plasma discharges.

H.B. Le; F. Felici; J.I. Paley; B.P. Duval; J.-M. Moret; S. Coda; O. Sauter; D. Fasel; P. Marmillod

2014-01-01T23:59:59.000Z

42

Mining, Modeling, and Analyzing Real-Time Social Trails  

E-Print Network (OSTI)

-time social trails that reflect the digital footprints of crowds of real-time web users in response to real-world events or online phenomena. These digital footprints correspond to the artifacts strewn across the real-time web like posting of messages...

Kamath, Krishna Y

2013-05-28T23:59:59.000Z

43

Real-TIme Raman Gas Composition Analyzer  

NLE Websites -- All DOE Office Websites (Extended Search)

Analyzer Analyzer Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking collaborative research partners interested in implementing United States Provisional Patent Application entitled "Gas Sensing System Employing Raman Scattering". Disclosed in this application is a gas analyzing sensor that characterizes gaseous fuel, exhaust gases, or other process gas streams. The sensor reports concentrations of all majority gases at better than 0.3% accuracy in 1 second or less, and can be used for real-time gas analysis and system control. The sensor relies on novel techniques to enhance usually weak spontaneous Raman emissions from sample gases, enabling the application of Raman spectroscopy to rapid gas analysis. No commercially available sensor or sensing

44

A Framework for Real-Time Service-Oriented Architecture  

E-Print Network (OSTI)

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

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

2009-01-01T23:59:59.000Z

45

USB Interfacing and Real Time Data Plotting with MATLAB  

E-Print Network (OSTI)

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

Ashrafi, Ashkan

46

Real-Time Pricing of Electricity: An Assessment  

E-Print Network (OSTI)

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

Baughman, M. L.; Zarnikau, J.

47

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

E-Print Network (OSTI)

Jan 3, 2015 ... Stochastic Real-Time Scheduling of Wind-thermal Generation Units in ... Keywords: conditional value at risk, uncertainty modeling, wind energy.

Alireza Soroudi

2015-01-03T23:59:59.000Z

48

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

E-Print Network (OSTI)

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

Zhang, Fumin

49

Design and Evaluation of a Feedback Control EDF Scheduling Algorithm *  

E-Print Network (OSTI)

Design and Evaluation of a Feedback Control EDF Scheduling Algorithm * * Supported in part by NSF. In this paper, we present a feedback control real­time scheduling algorithm and its evaluation. Performance}@cs.virginia.edu, + gt9s@virginia.edu Abstract Despite the significant body of results in real­time scheduling, many real

Son, Sang H.

50

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

E-Print Network (OSTI)

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

Greenberg, Saul

51

Towards a Real-Time Cluster Computing Infrastructure  

SciTech Connect

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

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

2011-11-01T23:59:59.000Z

52

Demonstration of Real-time Spectrum Sensing for Cognitive Radio  

E-Print Network (OSTI)

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

Qiu, Robert Caiming

53

Modelling the world in real time: how robots engineer information  

Science Journals Connector (OSTI)

...Modelling the world in real time: how robots engineer information. | Programming robots and...Modelling the world in real time: how robots engineer information By Andrew J. Davison Robotics...articulated objects and interface-quality hand tracking. In Proc. Eur. Conf...

2003-01-01T23:59:59.000Z

54

Real-time Remote Sensing of Snowmobiles Emissions at  

E-Print Network (OSTI)

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

Denver, University of

55

Real?Time Plasma Control Tools for Advanced Tokamak Operation  

Science Journals Connector (OSTI)

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

C. A. F. Varandas; J. Sousa; A. P. Rodrigues; B. B. Carvalho; H. Fernandes; A. J. Batista; N. Cruz; A. Combo; R. C. Pereira; CFN Control and Data Acquisition Group

2006-01-01T23:59:59.000Z

56

Utility Accrual Real-Time Scheduling for Multiprocessor Embedded Systems  

E-Print Network (OSTI)

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

Ravindran, Binoy

57

Comparison of component frameworks for real-time embedded systems  

Science Journals Connector (OSTI)

The use of components significantly helps in development of real-time embedded systems. There have been a number of component frameworks developed for this purpose, and some of them have already became well established in this area. Even though these ... Keywords: Component frameworks, Component-based development, Real-time and embedded systems

Tom Pop, Petr Hn?tynka, Petr Hoek, Michal Malohlava, Tom Bure

2014-07-01T23:59:59.000Z

58

Real-time Multi-period truckload routing problems  

E-Print Network (OSTI)

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

Limpaitoon, Tanachai

2008-01-01T23:59:59.000Z

59

Vibration analysis by speckle techniques in real time  

Science Journals Connector (OSTI)

Vibration analysis in quasi-real time is studied by recording the time-averaged speckle pattern in a bismuth silicon oxide crystal (Bi12SiO20). When the crystal...

Tiziani, H J; Klenk, J

1981-01-01T23:59:59.000Z

60

Definition: Real-Time Load Measurement And Management | Open Energy  

Open Energy Info (EERE)

Management Management Jump to: navigation, search Dictionary.png Real-Time Load Measurement And Management This function provides real-time measurement of customer consumption and management of load through Advanced Metering Infrastructure (AMI) systems (smart meters, two-way communications) and embedded appliance controllers that help customers make informed energy use decisions via real-time price signals, time-of-use (TOU) rates, and service options.[1] Related Terms advanced metering infrastructure, time-of-use pricing, smart grid References ↑ SmartGrid.gov 'Description of Functions' An in LikeLike UnlikeLike You like this.Sign Up to see what your friends like. line Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Real-Time_Load_Measurement_And_Management&oldid=493115

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Real-Time Traffic Information for Emergency Evacuation Operations  

E-Print Network (OSTI)

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

62

Real-time control of a microfluidic channel for size-independent deformability cytometry  

Science Journals Connector (OSTI)

Mechanical properties of cells can be correlated with various cell states and are now considered as an important class of biophysical markers. Effectiveness of existing high-throughput microfluidic techniques for investigating cell mechanical properties is adversely affected by cell-size variation in a given cell population. In this work, we introduce a new microfluidic system with real-time feedback control to evaluate single-cell deformability while minimizing cell-size dependence of the measurement. Using breast cancer cells (MCF-7), we demonstrate the potential of this system for stiffness profiling of cells in complex, diverse cell populations.

Guofeng Guan; Peter C Y Chen; Weng Kung Peng; Ali Asgar Bhagat; Chong Jin Ong; Jongyoon Han

2012-01-01T23:59:59.000Z

63

Storing Industry's Carbon Dioxide in Real Time | U.S. DOE Office of Science  

Office of Science (SC) Website

Storing Industry's Storing Industry's Carbon Dioxide in Real Time Laboratory Policy and Evaluation (LPE) LPE Home Staff M&O Contracts SC Laboratory Appraisal Process Laboratory Planning Process Work for Others in the Office of Science Laboratory Directed Research and Development (LDRD) DOE's Philosophy on LDRD Frequently Asked Questions Success Stories Brochures Additional Information LDRD Program Contacts Technology Transfer DOE National Laboratories Contact Information Laboratory Policy and Evaluation U.S. Department of Energy SC-32/Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5447 F: (202) 586-3119 Success Stories Storing Industry's Carbon Dioxide in Real Time Print Text Size: A A A RSS Feeds FeedbackShare Page PNNL researchers are developing new instruments that provide a first live

64

Plasma Shape Control on the National Spherical Torus Experiment (NSTX) using Real-time Equilibrium Reconstruction  

SciTech Connect

Plasma shape control using real-time equilibrium reconstruction has been implemented on the National Spherical Torus Experiment (NSTX). The rtEFIT code originally developed for use on DIII-D was adapted for use on NSTX. The real-time equilibria provide calculations of the flux at points on the plasma boundary, which is used as input to a shape control algorithm known as isoflux control. The flux at the desired boundary location is compared to a reference flux value, and this flux error is used as the basic feedback quantity for the poloidal-field coils on NSTX. The hardware that comprises the control system is described, as well as the software infrastructure. Examples of precise boundary control are also presented.

D.A. Gates; J.R. Ferron; M. Bell; T. Gibney; R. Johnson; R.J. Marsala; D. Mastrovito; J.E. Menard; D. Mueller; B. Penaflor; S.A. Sabbagh; T. Stevenson

2005-04-15T23:59:59.000Z

65

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

E-Print Network (OSTI)

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

Yin, Ying

66

Microwave Plasma Monitoring System For Real-Time Elemental Analysis  

NLE Websites -- All DOE Office Websites (Extended Search)

Microwave Plasma Monitoring System For Real-Time Elemental Analysis Microwave Plasma Monitoring System For Real-Time Elemental Analysis Microwave Plasma Monitoring System For Real-Time Elemental Analysis The invention apparatus can also be used to monitor for the presence of halogens, sulfur and silicon. Available for thumbnail of Feynman Center (505) 665-9090 Email Microwave Plasma Monitoring System For Real-Time Elemental Analysis There has been invented a process for analyzing ambient air in a microwave induced plasma without use of an additional carrier gas. There has also been invented an apparatus for analyzing ambient air, other sample gas, or nebulized and desolvated liquids wherein a novel arrangement of plasma gas and sample gas conduits is used to enhance dependability of the plasma. This apparatus embodiment of the invention has a concentric arrangement of

67

Scheduling of real-time communication network for parallel processing  

E-Print Network (OSTI)

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

Li, Hung

2012-06-07T23:59:59.000Z

68

Factorization of the Ashikhmin BRDF for real-time rendering  

Science Journals Connector (OSTI)

Ashikhmin and Shirley have proposed an anisotropic BRDF model that is physically plausible and has intuitive parameters. We present an analytical factorization of the Ashikhmin BRDF that is suitable for real-time implementation on all graphics accelerators, ...

Mauro Steigleder; Michael D. McCool

2002-12-01T23:59:59.000Z

69

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

NLE Websites -- All DOE Office Websites (Extended Search)

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

70

Real-time state estimation of laboratory flows  

E-Print Network (OSTI)

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

Stransky, Scott (Scott M.)

2007-01-01T23:59:59.000Z

71

Real-time Water Waves with Wave Particles  

E-Print Network (OSTI)

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

Yuksel, Cem

2010-10-12T23:59:59.000Z

72

High speed, real-time, camera bandwidth converter  

DOE Patents (OSTI)

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

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

2014-10-21T23:59:59.000Z

73

Real time MHD mode control using ECCD in KSTAR: Plan and requirements  

SciTech Connect

For a high-performance, advanced tokamak mode in KSTAR, we have been developing a real-time control system of MHD modes such as sawtooth and Neo-classical Tearing Mode (NTM) by ECH/ECCD. The active feedback control loop will be also added to the mirror position and the real-time detection of the mode position. In this year, for the stabilization of NTM that is crucial to plasma performance we have implemented open-loop ECH antenna control system in KSTAR Plasma Control System (PCS) for ECH mirror movement during a single plasma discharge. KSTAR 170 GHz ECH launcher which was designed and fabricated by collaboration with PPPL and POSTECH has a final mirror of a poloidally and toroidally steerable mirror. The poloidal steering motion is only controlled in the real-time NTM control system and its maximum steering speed is 10 degree/sec by DC motor. However, the latency of the mirror control system and the return period of ECH antenna mirror angle are not fast because the existing launcher mirror control system is based on PLC which is connected to the KSTAR machine network through serial to LAN converter. In this paper, we present the design of real time NTM control system, ECH requirements, and the upgrade plan.

Joung, M.; Woo, M. H.; Jeong, J. H.; Hahn, S. H.; Yun, S. W.; Lee, W. R.; Bae, Y. S.; Oh, Y. K.; Kwak, J. G.; Yang, H. L. [National Fusion Research Institute, 52 Eoeun-dong, Yuseong-gu, Daejeon (Korea, Republic of); Namkung, W.; Park, H.; Cho, M. H. [Department of Physics, POSTECH, Hyoja-dong, Nam-gu, Pohang, Gyeongangbuk-do (Korea, Republic of); Kim, M. H.; Kim, K. J.; Na, Y. S. [Department of Nuclear Engineering, Seoul National University, Daehak-dong, Gwanak-gu, Seoul (Korea, Republic of); Hosea, J.; Ellis, R. [Princeton Plasma Physics Laboratory, Princeton (United States)

2014-02-12T23:59:59.000Z

74

Real-Time Grid Reliability Management PIER Final Project Report  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-Time Grid Reliability Management PIER Final Project Report Real-Time Grid Reliability Management PIER Final Project Report Title Real-Time Grid Reliability Management PIER Final Project Report Publication Type Report Year of Publication 2008 Authors Eto, Joseph H., Manu Parashar, Bernard C. Lesieutre, and Nancy J. Lewis Pagination 62 Date Published 12/2008 Publisher LBNL City Berkeley Keywords consortium for electric reliability technology solutions (certs), energy analysis and environmental impacts department Abstract The increased need to manage California's electricity grid in real time is a result of the ongoing transition from a system operated by vertically integrated utilities serving native loads to one operated by an independent system operator supporting competitive energy markets. During this transition period, the traditional approach to reliability management - construction of new transmission lines - has not been pursued due to unresolved issues related to the financing and recovery of transmission project costs. In the absence of investments in new transmission infrastructure, the best strategy for managing reliability is to equip system operators with better real-time information about actual operating margins so that they can better understand and manage the risk of operating closer to the edge. A companion strategy is to address known deficiencies in offline modeling tools that are needed to ground the use of improved real-time tools.

75

Real-time dynamics for interactive environments  

E-Print Network (OSTI)

are linear acceleration a and angular acceleration ?. Next, we define mass properties. We will assume that the body is of constant density and has a scalar mass m. Additionally, we can temporarily assume that a rigid body is made up of a number of particles... required to induce the desired velocity change is j = 1nTKn?vrel. During resting contact, the bodies are touching, but will not penetrate on the next time step. However, it is possible for the bodies to be accelerating towards each other and to gain...

Timchenko, Alexander Nikolai

2008-10-10T23:59:59.000Z

76

Real-time dynamics for interactive environments  

E-Print Network (OSTI)

are linear acceleration a and angular acceleration ?. Next, we define mass properties. We will assume that the body is of constant density and has a scalar mass m. Additionally, we can temporarily assume that a rigid body is made up of a number of particles... required to induce the desired velocity change is j = 1nTKn?vrel. During resting contact, the bodies are touching, but will not penetrate on the next time step. However, it is possible for the bodies to be accelerating towards each other and to gain...

Timchenko, Alexander Nikolai

2009-05-15T23:59:59.000Z

77

Erasure of Time Delay Signatures in the Output of an Optoelectronic Feedback Laser with Modulated Delays and Chaos Synchronization  

E-Print Network (OSTI)

By studying the autocorrelation function of the optoelectronic feedback semiconductor laser output we establish that the signatures of time delays can be erased in systems incorporating modulated feedback time delays. This property is of importance for the suitability of such laser systems for secure chaos-based communication systems. We also make the first report on chaos synchronization in both unidirectionally and bidirectionally coupled multiple time delay chaotic semiconductor lasers with modulated optoelectronic feedbacks.

E. M. Shahverdiev; K. A. Shore

2009-06-17T23:59:59.000Z

78

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

E-Print Network (OSTI)

Implementing Real- Time Retail Electricity Pricing, CenterMarkets With Time-Invariant Retail Prices, RAND Journal of155 Customer Risk from Real-Time Retail Electricity Pricing:

Borenstein, Severin

2007-01-01T23:59:59.000Z

79

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

E-Print Network (OSTI)

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

Boyer, Edmond

80

Flash Memory Garbage Collection in Hard Real-Time Systems  

E-Print Network (OSTI)

-date behavior and time consuming garbage collection mechanism, NAND-based flash memory is difficult to integrate into hard-real-time embedded systems. In this thesis, I propose a performance model for flash memory garbage collection that can be used...

Lai, Chien-An

2012-10-19T23:59:59.000Z

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Real Time Dynamic Fracture with Volumetric Approximate Convex Decompositions  

E-Print Network (OSTI)

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

Müller-Fischer, Matthias

82

Mobile multipath cooperative network for real-time streaming  

Science Journals Connector (OSTI)

Access links are often times the bottlenecks of wireless wide area networks (WWAN). The prevalent use of multimedia applications on mobile devices introduces an ever increasing traffic load on WWAN access links, leading to traffic congestion and unsatisfactory ... Keywords: Mobile multimedia service, Multiple description coding, Network architecture, Overlay network, Quality of experience, Real-time streaming

Viji Raveendran; Phanikumar Bhamidipati; Xun Luo; Xiaolong Huang; Chao Jia

2012-09-01T23:59:59.000Z

83

Real-Time Networked Control with Multiple Clients  

E-Print Network (OSTI)

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

Lee, Minhyung

2010-01-14T23:59:59.000Z

84

Real-time operating systems at higher control  

SciTech Connect

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

Jensen, E.D.

1995-01-01T23:59:59.000Z

85

Tracking Living Cells as They Differentiate in Real Time  

NLE Websites -- All DOE Office Websites (Extended Search)

Tracking Living Cells as They Differentiate in Real Time Print Tracking Living Cells as They Differentiate in Real Time Print Protein phosphorylation regulates protein function in a cell, either activating or inactivating the proteins responsible for many cell functions ranging from cell proliferation to differentiation to metabolism to signaling, and even programmed cell death. This chemical process has been studied intensively, but until now it has been impossible to watch phosphorylation at the molecular level without damaging cells or interfering with the very processes being examined. Using ALS Infrared Beamline 1.4.3, a group of researchers led by Hoi-Ying Holman, director of the Berkeley Synchrotron Infrared Structural Biology program at the ALS, developed a new technique for monitoring protein phosphorylation inside living mammalian cells, enabling them to follow cellular chemical changes in real time, without bias.

86

Tracking Living Cells as They Differentiate in Real Time  

NLE Websites -- All DOE Office Websites (Extended Search)

Tracking Living Cells as They Differentiate in Real Time Print Tracking Living Cells as They Differentiate in Real Time Print Protein phosphorylation regulates protein function in a cell, either activating or inactivating the proteins responsible for many cell functions ranging from cell proliferation to differentiation to metabolism to signaling, and even programmed cell death. This chemical process has been studied intensively, but until now it has been impossible to watch phosphorylation at the molecular level without damaging cells or interfering with the very processes being examined. Using ALS Infrared Beamline 1.4.3, a group of researchers led by Hoi-Ying Holman, director of the Berkeley Synchrotron Infrared Structural Biology program at the ALS, developed a new technique for monitoring protein phosphorylation inside living mammalian cells, enabling them to follow cellular chemical changes in real time, without bias.

87

Tracking Living Cells as They Differentiate in Real Time  

NLE Websites -- All DOE Office Websites (Extended Search)

Tracking Living Cells as They Tracking Living Cells as They Differentiate in Real Time Tracking Living Cells as They Differentiate in Real Time Print Thursday, 27 September 2012 00:00 Protein phosphorylation regulates protein function in a cell, either activating or inactivating the proteins responsible for many cell functions ranging from cell proliferation to differentiation to metabolism to signaling, and even programmed cell death. This chemical process has been studied intensively, but until now it has been impossible to watch phosphorylation at the molecular level without damaging cells or interfering with the very processes being examined. Using ALS Infrared Beamline 1.4.3, a group of researchers led by Hoi-Ying Holman, director of the Berkeley Synchrotron Infrared Structural Biology program at the ALS, developed a new technique for monitoring protein phosphorylation inside living mammalian cells, enabling them to follow cellular chemical changes in real time, without bias.

88

Low Dose Radiation Research Program: Research Highlights - Real-time  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-time imaging of repair processes possible with Nickel-63 Real-time imaging of repair processes possible with Nickel-63 microirradiator Microscope Microscope stage-mounted microirradiation system. (A) Overall system shown mounted on a micromanipulator housed within a heated, humidified, environmental chamber of a microscope. (B) Close-up showing attachment of device to the micromanipulator. (C) Detail showing the bend in the enclosing capillary, which allows positioning of the active surface directly above the target cell. (D) Microirradiator tip in dissecting microscope. (E) Close-up view through microscope optics (scale bar, 10 microns.) Background: Scientists know that mammalian cells begin a nucleoplasmic repair process within seconds after being exposed to ionizing radiation. Real-time imaging of this process could further understanding of the

89

Tracking Living Cells as They Differentiate in Real Time  

NLE Websites -- All DOE Office Websites (Extended Search)

Tracking Living Cells as They Differentiate in Real Time Print Tracking Living Cells as They Differentiate in Real Time Print Protein phosphorylation regulates protein function in a cell, either activating or inactivating the proteins responsible for many cell functions ranging from cell proliferation to differentiation to metabolism to signaling, and even programmed cell death. This chemical process has been studied intensively, but until now it has been impossible to watch phosphorylation at the molecular level without damaging cells or interfering with the very processes being examined. Using ALS Infrared Beamline 1.4.3, a group of researchers led by Hoi-Ying Holman, director of the Berkeley Synchrotron Infrared Structural Biology program at the ALS, developed a new technique for monitoring protein phosphorylation inside living mammalian cells, enabling them to follow cellular chemical changes in real time, without bias.

90

Tracking Living Cells as They Differentiate in Real Time  

NLE Websites -- All DOE Office Websites (Extended Search)

Tracking Living Cells as They Differentiate in Real Time Print Tracking Living Cells as They Differentiate in Real Time Print Protein phosphorylation regulates protein function in a cell, either activating or inactivating the proteins responsible for many cell functions ranging from cell proliferation to differentiation to metabolism to signaling, and even programmed cell death. This chemical process has been studied intensively, but until now it has been impossible to watch phosphorylation at the molecular level without damaging cells or interfering with the very processes being examined. Using ALS Infrared Beamline 1.4.3, a group of researchers led by Hoi-Ying Holman, director of the Berkeley Synchrotron Infrared Structural Biology program at the ALS, developed a new technique for monitoring protein phosphorylation inside living mammalian cells, enabling them to follow cellular chemical changes in real time, without bias.

91

Java Automation Controller and Real-Time Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Java Automation Controller and Real-Time Systems Java Automation Controller and Real-Time Systems Speaker(s): Greg Bollella Date: June 29, 2009 - 12:00pm Location: 90-3122 Java has always been a disruptive technology and now it is breaking the mold in industrial, process, building, and transportation automation systems. For many years, programmable logic controllers (PLCs), the digital versions of old relay-based control systems (such as that used in the NYC Subway system in the late 1800s) have primarily controlled these systems. PLCs are the workhorses of the controls industry but the market is characterized by proprietary, closed, expensive, special-purpose solutions. A Java-based automation controller breaks the mold by allowing control algorithms, which require strict real-time capabilities, to run on

92

Real Time Flame Monitoring of Gasifier Burner and Injectors  

NLE Websites -- All DOE Office Websites (Extended Search)

Real Time Flame Monitoring of Gasifier Real Time Flame Monitoring of Gasifier Burner and Injectors Background The Gasification Technologies Program at the National Energy Technology Laboratory (NETL) supports research and development (R&D) in the area of gasification-a process whereby carbon-based materials (feedstocks) such as coal are converted into synthesis gas (syngas), which is separated into hydrogen (H 2 ) and carbon dioxide (CO 2 ) gas streams in a combustion turbine-generator as a way to generate clean electricity while

93

A real-time airborne scatterometer data processor  

E-Print Network (OSTI)

Subject: Electrical Fngineering A REAL-TIME AIRBORNE SCATTEROMETER DATA PROCESSOR A Thesis by Gary James Reisor Approved as to style and content by: arrman o Committee Hea o Depa tment em er Mem er August 1976 ABSTRACT A Real-time Airborne... data stream in an industry standard format so that external devices for testing and data storage can be easily interfaced to the RASP system. Bi-phase Level Output (Big-L output) - Provides a high speed, synchronous, bit serial data output port...

Reisor, Gary James

2012-06-07T23:59:59.000Z

94

A heterogeneous hierarchical architecture for real-time computing  

SciTech Connect

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

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

1988-12-01T23:59:59.000Z

95

Real-time electron density measurements from Cotton-Mouton effect in JET machine  

SciTech Connect

Real-time density profile measurements are essential for advanced fusion tokamak operation and interferometry is a proven method for this task. Nevertheless, as a consequence of edge localized modes, pellet injections, fast density increases, or disruptions, the interferometer is subject to fringe jumps, which produce loss of the signal preventing reliable use of the measured density in a real-time feedback controller. An alternative method to measure the density is polarimetry based on the Cotton-Mouton effect, which is proportional to the line-integrated electron density. A new analysis approach has been implemented and tested to verify the reliability of the Cotton-Mouton measurements for a wide range of plasma parameters and to compare the density evaluated from polarimetry with that from interferometry. The density measurements based on polarimetry are going to be integrated in the real-time control system of JET since the difference with the interferometry is within one fringe for more than 90% of the cases.

Brombin, M. [Consorzio RFX, Associazione EURATOM-ENEA, Corso Stati Uniti 4, 35127 Padova (Italy); Electrical Engineering Department, Padova University, via Gradenigo 6-A, 35131 Padova (Italy); Boboc, A.; Zabeo, L. [EURATOM/UKAEA Fusion Association, Culham Science Centre, OX14 3DB Abingdon (United Kingdom); Murari, A. [Consorzio RFX, Associazione EURATOM-ENEA, Corso Stati Uniti 4, 35127 Padova (Italy)

2008-10-15T23:59:59.000Z

96

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

E-Print Network (OSTI)

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

Whitley, Eric

2014-01-01T23:59:59.000Z

97

E-Print Network 3.0 - acquisition enabling real-time Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

image data in real-time with MRI during active motion remains to be solved... -FFE, FIESTA) imaging sequence for real-time imaging of ... Source: Gilles, Benjamin -...

98

Constraint Orientated Specification with CSP and Real Time Temporal Logic  

E-Print Network (OSTI)

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

Kent, University of

99

Concurrent and Real Time Systems: the CSP approach Steve Schneider  

E-Print Network (OSTI)

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

Doran, Simon J.

100

: A Testbed for Empirically Comparing Real-Time Multiprocessor Schedulers  

E-Print Network (OSTI)

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

Anderson, James

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Real Time PMU-Based Stability Monitoring Final Project Report  

E-Print Network (OSTI)

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

102

Oxybuoy: Constructing a Real-Time Inexpensive Hypoxia Monitoring Platform  

E-Print Network (OSTI)

Oxybuoy: Constructing a Real-Time Inexpensive Hypoxia Monitoring Platform Rizal Nor1 , Mikhail on using research vessels to collect water samples for subsequent chemical anal- ysis or to deploy DO premiums to recoup their development costs. Another commercial strategy is to develop a sensor platform

Nesterenko, Mikhail

103

REAL-TIME EQUILIBRIUM RECONSTRUCTION IN A TOKAMAK  

E-Print Network (OSTI)

REAL-TIME EQUILIBRIUM RECONSTRUCTION IN A TOKAMAK J. Blum, C. Boulbe and B. Faugeras Laboratoire J reconstruction of the plasma current density in a Tokamak and of its equilibrium. The problem consists equilibrium of a plasma in a Tokamak. The experimental measurements that enable this identification

Paris-Sud XI, Université de

104

Real Time Emulations: Foundation and Applications Azalia Mirhoseini  

E-Print Network (OSTI)

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

105

ENERGY MANAGEMENT REAL-TIME MULTI-TIER INTERNET SERVICES  

E-Print Network (OSTI)

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

Skadron, Kevin

106

Real-time control of individual agents for crowd simulation  

Science Journals Connector (OSTI)

This paper presents a novel approach for individual agent's motion simulation in real-time virtual environments. In our model, we focus on addressing two problems: 1) the control model for local motions. We propose to represent a combination of psychological ... Keywords: Crowd simulation, Individual agents controlling, Path planning, Virtual environments

Yunbo Rao; Leiting Chen; Qihe Liu; Weiyao Lin; Yanmei Li; Jun Zhou

2011-08-01T23:59:59.000Z

107

Hierarchical Architecture for Real-Time Adaptive Resource Management  

E-Print Network (OSTI)

, Mihaela Cardei1 , Allalaghatta Pavan2 Honeywell Technology Center 3660 Technology Drive, Minneapolis, MN 55418, USA 1 {ionut, mihaela}@cs.umn.edu, 2 {jha, pavan}@htc.honeywell.com Abstract. This paper presents the Real Time Adaptive Resource Management system (RTARM1 ), developed at the Honeywell Technology Center

Cardei, Ionut

108

The development of realtime substructure testing  

Science Journals Connector (OSTI)

...research-article Theme Issue Dynamic testing of structures compiled by M. S. Williams...development of real-time substructure testing A. Blakeborough 1 M. S. Williams 1...Bath BA2 7AY, UK Full-scale dynamic testing of civil engineering structures is extremely...

2001-01-01T23:59:59.000Z

109

Accuracy of near real time updates in wind power forecasting  

E-Print Network (OSTI)

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

Heinemann, Detlev

110

Closed-loop real-time control on distributed networks  

E-Print Network (OSTI)

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

Ambike, Ajit Dilip

2004-11-15T23:59:59.000Z

111

Real-Time Redox Measurements during Endoplasmic Reticulum Stress Reveal  

E-Print Network (OSTI)

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

Mullins, Dyche

112

Real-Time Traffic Information for Emergency Evacuations  

SciTech Connect

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

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

2010-01-01T23:59:59.000Z

113

REAL-TIME TRACER MONITORING OF RESERVOIR STIMULATION PROCEDURES  

SciTech Connect

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

George Scott III

2002-08-01T23:59:59.000Z

114

REAL-TIME BUILDING ENERGY SIMULATION USING ENERGYPLUS AND THE  

NLE Websites -- All DOE Office Websites (Extended Search)

REAL-TIME BUILDING ENERGY SIMULATION USING ENERGYPLUS AND THE REAL-TIME BUILDING ENERGY SIMULATION USING ENERGYPLUS AND THE BUILDING CONTROLS VIRTUAL TEST BED Xiufeng Pang 1 , Prajesh Bhattacharya 1 , Zheng O'Neill 2 , Philip Haves 1 , Michael Wetter 1 , and Trevor Bailey 2 1 Lawrence Berkeley National Laboratory, Berkeley, CA, USA 2 United Technologies Research Center, East Hartford, CT, USA ABSTRACT Most commercial buildings do not perform as well in practice as intended by the design and their performances often deteriorate over time. Reasons include faulty construction, malfunctioning equipment, incorrectly configured control systems and inappropriate operating procedures (Haves et al., 2001, Lee et al., 2007). To address this problem, the paper presents a simulation-based whole building performance monitoring tool that allows a

115

Looking at Transistor Gate Oxide Formation in Real Time  

NLE Websites -- All DOE Office Websites (Extended Search)

Looking at Transistor Gate Oxide Formation in Real Time Print Looking at Transistor Gate Oxide Formation in Real Time Print The oxide gate layer is critical to every transistor, and present-day layer thicknesses are in the 10-20 Å range (1-2 nm). However, little information exists on the oxidation process at this thickness. Available results are either for thicker layers grown under high-pressure conditions or for only the first couple of monolayers studied under high-vacuum conditions. Now, for the first time, a group of researchers has obtained real-time oxidation results for this elusive range. Using the ambient-pressure x-ray photoelectron spectroscopy (APXPS) endstation at ALS Beamline 9.3.2, they examined oxidation of Si(100) at pressures up to 1 torr and temperatures up to 450 ºC. The Si 2p chemical shifts allowed determination of oxide thickness as a function of time with a precision of 1-2 Å. The initial oxidation rate was very high (up to ~234 Å/h). Then, after an initial oxide thickness of 6-22 Å was formed, the rate decreased markedly (~1.5-4.0Å/h). Neither rate regime can be explained by the standard Deal-Grove (D-G) model for Si oxidation. These results are a significant step toward developing a better understanding of this critical thickness regime.

116

Looking at Transistor Gate Oxide Formation in Real Time  

NLE Websites -- All DOE Office Websites (Extended Search)

Looking at Transistor Gate Oxide Formation in Real Time Print Looking at Transistor Gate Oxide Formation in Real Time Print The oxide gate layer is critical to every transistor, and present-day layer thicknesses are in the 10-20 Å range (1-2 nm). However, little information exists on the oxidation process at this thickness. Available results are either for thicker layers grown under high-pressure conditions or for only the first couple of monolayers studied under high-vacuum conditions. Now, for the first time, a group of researchers has obtained real-time oxidation results for this elusive range. Using the ambient-pressure x-ray photoelectron spectroscopy (APXPS) endstation at ALS Beamline 9.3.2, they examined oxidation of Si(100) at pressures up to 1 torr and temperatures up to 450 ºC. The Si 2p chemical shifts allowed determination of oxide thickness as a function of time with a precision of 1-2 Å. The initial oxidation rate was very high (up to ~234 Å/h). Then, after an initial oxide thickness of 6-22 Å was formed, the rate decreased markedly (~1.5-4.0Å/h). Neither rate regime can be explained by the standard Deal-Grove (D-G) model for Si oxidation. These results are a significant step toward developing a better understanding of this critical thickness regime.

117

Looking at Transistor Gate Oxide Formation in Real Time  

NLE Websites -- All DOE Office Websites (Extended Search)

Looking at Transistor Gate Oxide Formation in Real Time Print Looking at Transistor Gate Oxide Formation in Real Time Print The oxide gate layer is critical to every transistor, and present-day layer thicknesses are in the 10-20 Å range (1-2 nm). However, little information exists on the oxidation process at this thickness. Available results are either for thicker layers grown under high-pressure conditions or for only the first couple of monolayers studied under high-vacuum conditions. Now, for the first time, a group of researchers has obtained real-time oxidation results for this elusive range. Using the ambient-pressure x-ray photoelectron spectroscopy (APXPS) endstation at ALS Beamline 9.3.2, they examined oxidation of Si(100) at pressures up to 1 torr and temperatures up to 450 ºC. The Si 2p chemical shifts allowed determination of oxide thickness as a function of time with a precision of 1-2 Å. The initial oxidation rate was very high (up to ~234 Å/h). Then, after an initial oxide thickness of 6-22 Å was formed, the rate decreased markedly (~1.5-4.0Å/h). Neither rate regime can be explained by the standard Deal-Grove (D-G) model for Si oxidation. These results are a significant step toward developing a better understanding of this critical thickness regime.

118

REAL TIME GRID RELIABILITY MANAGEMENT 2005 PIER FINAL PROJECT REPORT  

NLE Websites -- All DOE Office Websites (Extended Search)

REAL TIME GRID RELIABILITY REAL TIME GRID RELIABILITY MANAGEMENT 2005 Prepared For: California Energy Commission Public Interest Energy Research Program Prepared By: Lawrence Berkeley National Laboratory PIER FINAL PROJECT REPORT LBNL-62368 ii Legal Notice This report was prepared as a result of work sponsored by the California Energy Commission (Energy Commission). It does not necessarily represent the views of the Energy Commission, its employees, or the State of California. The Energy Commission, the State of California, its employees, contractors, and subcontractors make no warrant, express or implied, and assume no legal liability for the information in this report; nor does any party represent that the use of this information will not infringe upon privately owned rights. This report has not been

119

Real-Time Raman Gas Composition Sensor.pdf  

NLE Websites -- All DOE Office Websites (Extended Search)

Sensor Sensor Opportunity Technology/Capability Overview Benefits to Partner Development Status Contact The NETL Real-time Raman Gas Composition Analyzer determines the composition of a flowing gaseous sample in real-time and provides the concentration of each gas in that sample. . . . ‡ Testing partners would have the opportunity to evaluate the performance of the prototype system, implement new feed-forward controls, and may help shape the commercial product configuration ‡ This sensor will greatly benefit the power industry, as well as other industries utilizing gaseous input or output streams by enabling smarter control to increase process efficiency and reduce emissions ‡ We are seeking opportunities to field test the prototype instruments in power and industrial applications, as well

120

Real Time Monitoring of Self Assembled Monolayers Using ATR: Implications  

NLE Websites -- All DOE Office Websites (Extended Search)

Real Time Monitoring of Self Assembled Monolayers Using ATR: Implications Real Time Monitoring of Self Assembled Monolayers Using ATR: Implications to Atmospheric Organic Surfaces Speaker(s): Yael Dubowski Date: December 10, 2003 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Hugo Destaillats Most studies of heterogeneous reactions on aerosols have focused on their implications for gas phase species. Less attention, however, has been given to the modification of aerosol surfaces during such reactions. Alteration of aerosol surface species may affect their hygroscopic and radiative properties as well as their reactivity toward other atmospheric trace species. In the present study, we use self-assembled organic monolayers (SAM) as proxies for atmospheric organic aerosols. Detection of even very short carbon chains (i.e., C3) as well as continuous monitoring of the SAMs

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Real-time seam tracking for rocket thrust chamber manufacturing  

SciTech Connect

A sensor-based control approach for real-time seam tracking of rocket thrust chamber assemblies has been developed to enable automation of a braze paste dispensing process. This approach utilizes a non-contact Multi-Axis Seam Tracking (MAST) sensor to track the seams. Thee MAST sensor measures capacitance variations between the sensor and the workpiece and produces four varying voltages which are read directly into the robot controller. A PID control algorithm which runs at the application program level has been designed based upon a simple dynamic model of the combined robot and sensor plant. The control algorithm acts on the incoming sensor signals in real-time to guide the robot motion along the seam path. Experiments demonstrate that seams can be tracked at 100 mm/sec within the accuracy required for braze paste dispensing.

Schmitt, D.J.; Novak, J.L. [Sandia National Labs., Albuquerque, NM (United States); Starr, G.P. [New Mexico Univ., Albuquerque, NM (United States); Maslakowski, J.E. [Rockwell International Corp., Canoga Park, CA (United States). Rocketdyne Div.

1993-11-01T23:59:59.000Z

122

Coordinated Home Energy Management for Real-Time Power Balancing  

E-Print Network (OSTI)

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

Chang, Tsung-Hui; Scaglione, Anna

2012-01-01T23:59:59.000Z

123

Wide-area, real-time monitoring and visualization system  

SciTech Connect

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

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

2011-11-15T23:59:59.000Z

124

Wide-area, real-time monitoring and visualization system  

DOE Patents (OSTI)

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

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

2013-03-19T23:59:59.000Z

125

Real-time performance monitoring and management system  

DOE Patents (OSTI)

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

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

2007-06-19T23:59:59.000Z

126

Real time markerless motion tracking using linked kinematic chains  

DOE Patents (OSTI)

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

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

2007-08-14T23:59:59.000Z

127

Embedded Real-Time Systems Electrical Model Quad Rotor UAV  

E-Print Network (OSTI)

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

Langendoen, Koen

128

Real-Time Optimization Strategies for Building Systems  

Science Journals Connector (OSTI)

This hinders market penetration and slows down smart grid initiatives such as demand response. ... In addition, it is necessary to determine the impact of different electricity market incentives and programs such as day-ahead bidding, real-time pricing, and demand response on the cost improvements of MPC over existing control architectures. ... A conclusion from this study is that buildings do not benefit from following economic objectives if no revenue is provided (e.g., negative prices or demand response payments). ...

Victor M. Zavala

2012-08-27T23:59:59.000Z

129

Real-time trend monitoring of gas compressor stations  

SciTech Connect

The authors' company has developed a machinery health monitoring system (MHealth) for short-term and long-term historical trending and analysis of data from its 40 gas compressor stations. The author discusses the benefits of real-time trending in troubleshooting operations, in preventative maintenance scheduling and cites specific applications in the startup operations of several new gas compressor/centrifugal compressor units.

Van Hardeveld, T. (Nova, an Alberta Corp., AB (Canada))

1991-02-01T23:59:59.000Z

130

A versatile real-time spectral analysis system  

E-Print Network (OSTI)

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

Hancock, Mark Steven

2012-06-07T23:59:59.000Z

131

Real time 3D and heterogeneous data fusion  

SciTech Connect

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

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

1998-03-01T23:59:59.000Z

132

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

SciTech Connect

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

Unknown

1999-06-16T23:59:59.000Z

133

Design and Evaluation of a Feedback Control EDF Scheduling Supported in part by NSF grant CCR-9901706 and contract IJRP-  

E-Print Network (OSTI)

Design and Evaluation of a Feedback Control EDF Scheduling Algorithm* * Supported in part by NSF. In this paper, we present a feedback control real-time scheduling algorithm and its evaluation. Performance}@cs.virginia.edu, gt9s@virginia.edu Abstract Despite the significant body of results in real-time scheduling, many real

Lu, Chenyang

134

Near real time vapor detection and enhancement using aerosol adsorption  

SciTech Connect

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

Novick, Vincent J.; Johnson, Stanley A.

1997-12-01T23:59:59.000Z

135

Data Fusion Framework: concurrent architecture for real-time processing  

Science Journals Connector (OSTI)

In the last few decades, a new way of interpreting multi-sensor array processing techniques and artificial intelligence systems has been introduced. This theory focuses on interactions and fusion between heterogeneous/homogeneous information at different layers in order to guarantee data completeness and robust resolution of hard-to-solve problems. Our research investigates this theory, well known as Data Fusion (DF). In this paper, we present an operating framework that permits DF during the elaboration flow at different levels of computation. We focused our attention on several key aspects of real-time implementation.

Stefano Laoreti; Davide Renzi; Raffaele Parisi; Aurelio Uncini

2008-01-01T23:59:59.000Z

136

Real-time human collaboration monitoring and intervention  

DOE Patents (OSTI)

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

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

2010-07-13T23:59:59.000Z

137

Near real time vapor detection and enhancement using aerosol adsorption  

DOE Patents (OSTI)

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

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

1999-08-03T23:59:59.000Z

138

Near real time vapor detection and enhancement using aerosol adsorption  

DOE Patents (OSTI)

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

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

1999-01-01T23:59:59.000Z

139

Near minimum-time maneuvers of large space structures using parameter optimization and lyapunov feedback control  

E-Print Network (OSTI)

Thruster Set Location, Saturation Thrust, and Positive Voltage Thrust Direction Thruster Manufacture 7 (1-2) 8 (3-4) 9 (5-6) 10 (7-8) Node ? 327 325 321 323 427 437 324 322 328 326 (m) -1. 35 1. 35 1. 35 -1. 35 -2. 82649 2. 82649...NEAR MINIMUM-TIME MANEUVERS OF LARGE SPACE STRUCTURES USING PARAMETER OPTIMIZATION AND LYAPUNOV FEEDBACK CONTROL A Thesis by IvtlCHAEL TIMOTHY CARTER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

Carter, Michael Timothy

2012-06-07T23:59:59.000Z

140

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

E-Print Network (OSTI)

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

Krumke, Sven O.

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

DRDB: Towards Distributed RealTime Database Services for TimeCritical Active Applications  

E-Print Network (OSTI)

H. Son, Robert C. Beckinger, and David A. Baker Dept. of Computer Science University of Virginia, and often require timely and predictable access to massive amounts of data. This need for advanced data science and engineering [Shin94]. Many real­time systems are now being used in safety

Son, Sang H.

142

A PreRunTime Scheduling Algorithm for ObjectBased Distributed RealTime Systems  

E-Print Network (OSTI)

are not generated within specified time intervals. Current real­time computing technology is challenged to handle of Technology Madras, 600 036, INDIA ffskumar,gmanig%bronto,murthyg@iitm.ernet.in Abstract The most important to the large number of procedure calls and contention for accessing software components. These issues

Manimaran, Govindarasu

143

Real-time collaborative editing behavior in USA and Japanese distributed teams  

Science Journals Connector (OSTI)

While there are tools that allow distributed teams to collaboratively edit in real time, little work examines this practice among real teams doing real work. Even less is known about how teams from different countries make use of real-time collaborative ... Keywords: collaborative editing, computer-mediated communication, csouth carolinaw, cultural differences, distributed teams

Lauren Scissors; N. Sadat Shami; Tatsuya Ishihara; Steven Rohall; Shin Saito

2011-05-01T23:59:59.000Z

144

Real-Time Chemical Imaging of Bacterial Biofilm Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-Time Chemical Imaging of Bacterial Biofilm Development Print Real-Time Chemical Imaging of Bacterial Biofilm Development Print Scientists have developed a robust and label-free method to probe the chemical underpinnings of developing bacterial biofilms. Almost all bacteria can form biofilms-dynamic communities of cells enclosed in self-produced matrices of polymers that stick to other bacteria or surfaces in water-containing environments. Coordinated collectively, these bacteria defend against antagonists, break down recalcitrant materials, and produce biofuels. Researchers from Berkeley Lab, Lawrence Livermore National Lab, and UC Berkeley coupled infrared (IR) rays from ALS Beamline 1.4.3 to the first open-channel microfluidic platform to determine the chemistry that shapes biofilm development. This combination of synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectromicroscopy and the microfluidic platform will have a significant impact on several scientific disciplines that require chemical-scale information on biofilm phenotype and function, including Berkeley Lab's bioenergy efforts and subsurface biogeochemical studies.

145

Real-Time Chemical Imaging of Bacterial Biofilm Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-Time Chemical Imaging of Bacterial Biofilm Development Print Real-Time Chemical Imaging of Bacterial Biofilm Development Print Scientists have developed a robust and label-free method to probe the chemical underpinnings of developing bacterial biofilms. Almost all bacteria can form biofilms-dynamic communities of cells enclosed in self-produced matrices of polymers that stick to other bacteria or surfaces in water-containing environments. Coordinated collectively, these bacteria defend against antagonists, break down recalcitrant materials, and produce biofuels. Researchers from Berkeley Lab, Lawrence Livermore National Lab, and UC Berkeley coupled infrared (IR) rays from ALS Beamline 1.4.3 to the first open-channel microfluidic platform to determine the chemistry that shapes biofilm development. This combination of synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectromicroscopy and the microfluidic platform will have a significant impact on several scientific disciplines that require chemical-scale information on biofilm phenotype and function, including Berkeley Lab's bioenergy efforts and subsurface biogeochemical studies.

146

Real-Time Chemical Imaging of Bacterial Biofilm Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-Time Chemical Imaging of Bacterial Biofilm Development Print Real-Time Chemical Imaging of Bacterial Biofilm Development Print Scientists have developed a robust and label-free method to probe the chemical underpinnings of developing bacterial biofilms. Almost all bacteria can form biofilms-dynamic communities of cells enclosed in self-produced matrices of polymers that stick to other bacteria or surfaces in water-containing environments. Coordinated collectively, these bacteria defend against antagonists, break down recalcitrant materials, and produce biofuels. Researchers from Berkeley Lab, Lawrence Livermore National Lab, and UC Berkeley coupled infrared (IR) rays from ALS Beamline 1.4.3 to the first open-channel microfluidic platform to determine the chemistry that shapes biofilm development. This combination of synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectromicroscopy and the microfluidic platform will have a significant impact on several scientific disciplines that require chemical-scale information on biofilm phenotype and function, including Berkeley Lab's bioenergy efforts and subsurface biogeochemical studies.

147

Real-Time Chemical Imaging of Bacterial Biofilm Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-Time Chemical Imaging of Bacterial Biofilm Development Print Real-Time Chemical Imaging of Bacterial Biofilm Development Print Scientists have developed a robust and label-free method to probe the chemical underpinnings of developing bacterial biofilms. Almost all bacteria can form biofilms-dynamic communities of cells enclosed in self-produced matrices of polymers that stick to other bacteria or surfaces in water-containing environments. Coordinated collectively, these bacteria defend against antagonists, break down recalcitrant materials, and produce biofuels. Researchers from Berkeley Lab, Lawrence Livermore National Lab, and UC Berkeley coupled infrared (IR) rays from ALS Beamline 1.4.3 to the first open-channel microfluidic platform to determine the chemistry that shapes biofilm development. This combination of synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectromicroscopy and the microfluidic platform will have a significant impact on several scientific disciplines that require chemical-scale information on biofilm phenotype and function, including Berkeley Lab's bioenergy efforts and subsurface biogeochemical studies.

148

Real-Time Chemical Imaging of Bacterial Biofilm Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-Time Chemical Imaging of Bacterial Biofilm Development Print Real-Time Chemical Imaging of Bacterial Biofilm Development Print Scientists have developed a robust and label-free method to probe the chemical underpinnings of developing bacterial biofilms. Almost all bacteria can form biofilms-dynamic communities of cells enclosed in self-produced matrices of polymers that stick to other bacteria or surfaces in water-containing environments. Coordinated collectively, these bacteria defend against antagonists, break down recalcitrant materials, and produce biofuels. Researchers from Berkeley Lab, Lawrence Livermore National Lab, and UC Berkeley coupled infrared (IR) rays from ALS Beamline 1.4.3 to the first open-channel microfluidic platform to determine the chemistry that shapes biofilm development. This combination of synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectromicroscopy and the microfluidic platform will have a significant impact on several scientific disciplines that require chemical-scale information on biofilm phenotype and function, including Berkeley Lab's bioenergy efforts and subsurface biogeochemical studies.

149

Real-Time Chemical Imaging of Bacterial Biofilm Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-Time Chemical Imaging of Bacterial Biofilm Development Print Real-Time Chemical Imaging of Bacterial Biofilm Development Print Scientists have developed a robust and label-free method to probe the chemical underpinnings of developing bacterial biofilms. Almost all bacteria can form biofilms-dynamic communities of cells enclosed in self-produced matrices of polymers that stick to other bacteria or surfaces in water-containing environments. Coordinated collectively, these bacteria defend against antagonists, break down recalcitrant materials, and produce biofuels. Researchers from Berkeley Lab, Lawrence Livermore National Lab, and UC Berkeley coupled infrared (IR) rays from ALS Beamline 1.4.3 to the first open-channel microfluidic platform to determine the chemistry that shapes biofilm development. This combination of synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectromicroscopy and the microfluidic platform will have a significant impact on several scientific disciplines that require chemical-scale information on biofilm phenotype and function, including Berkeley Lab's bioenergy efforts and subsurface biogeochemical studies.

150

Real-Time Chemical Imaging of Bacterial Biofilm Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-Time Chemical Imaging of Bacterial Biofilm Development Print Real-Time Chemical Imaging of Bacterial Biofilm Development Print Scientists have developed a robust and label-free method to probe the chemical underpinnings of developing bacterial biofilms. Almost all bacteria can form biofilms-dynamic communities of cells enclosed in self-produced matrices of polymers that stick to other bacteria or surfaces in water-containing environments. Coordinated collectively, these bacteria defend against antagonists, break down recalcitrant materials, and produce biofuels. Researchers from Berkeley Lab, Lawrence Livermore National Lab, and UC Berkeley coupled infrared (IR) rays from ALS Beamline 1.4.3 to the first open-channel microfluidic platform to determine the chemistry that shapes biofilm development. This combination of synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectromicroscopy and the microfluidic platform will have a significant impact on several scientific disciplines that require chemical-scale information on biofilm phenotype and function, including Berkeley Lab's bioenergy efforts and subsurface biogeochemical studies.

151

Real-Time Chemical Imaging of Bacterial Biofilm Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-Time Chemical Imaging of Bacterial Biofilm Development Print Real-Time Chemical Imaging of Bacterial Biofilm Development Print Scientists have developed a robust and label-free method to probe the chemical underpinnings of developing bacterial biofilms. Almost all bacteria can form biofilms-dynamic communities of cells enclosed in self-produced matrices of polymers that stick to other bacteria or surfaces in water-containing environments. Coordinated collectively, these bacteria defend against antagonists, break down recalcitrant materials, and produce biofuels. Researchers from Berkeley Lab, Lawrence Livermore National Lab, and UC Berkeley coupled infrared (IR) rays from ALS Beamline 1.4.3 to the first open-channel microfluidic platform to determine the chemistry that shapes biofilm development. This combination of synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectromicroscopy and the microfluidic platform will have a significant impact on several scientific disciplines that require chemical-scale information on biofilm phenotype and function, including Berkeley Lab's bioenergy efforts and subsurface biogeochemical studies.

152

Initial Studies Toward Real-Time Transmission Path Rating  

SciTech Connect

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

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

2012-07-26T23:59:59.000Z

153

New magnetic real time shape control for MAST  

E-Print Network (OSTI)

The MAST (Mega Ampere Spherical Tokamak) real time plasma position controller is based on an optical linear camera placed on the mid plane of the vessel. This solution has the advantage of being a direct observation of the D [alpha]emissions coming from the interaction between the boundary of the plasma and neutral gas, but, on the other hand, it restricts the control to the outer radius of the plasma only. A complete chain of tools has been set up to implement, test and simulate a new real time magnetic plasma shape controller based on the rtEFIT code. The complete working path consists of three elements: a linear static relationship between control parameters and current demands, a linear state space model needed to represent the plasma dynamic response in closed loop simulations, and the possibility to run simulations inside the Plasma Control System (PCS). The linear relationship has been calculated using the FIESTA code, which is developed using Matlab at CCFE. The linear state space model was generated ...

Pangione, L; Storrs, J

2013-01-01T23:59:59.000Z

154

Long-Range Untethered Real-Time Live Gas Main Robotic Inspection System  

SciTech Connect

Under funding from the Department of Energy (DOE) and the Northeast Gas Association (NGA), Carnegie Mellon University (CMU) developed an untethered, wireless remote controlled inspection robot dubbed Explorer. The project entailed the design and prototyping of a wireless self-powered video-inspection robot capable of accessing live 6- and 8-inch diameter cast-iron and steel mains, while traversing turns and Ts and elbows under real-time control with live video feedback to an operator. The design is that of a segmented actively articulated and wheel-leg powered robot design, with fisheye imaging capability and self-powered battery storage and wireless real-time communication link. The prototype was functionally tested in an above ground pipe-network, in order to debug all mechanical, electrical and software subsystems, and develop the necessary deployment and retrieval, as well as obstacle-handling scripts. A pressurized natural gas test-section was used to certify it for operation in natural gas at up to 60 psig. Two subsequent live-main field-trials in both cast-iron and steel pipe, demonstrated its ability to be safely launched, operated and retrieved under real-world conditions. The system's ability to safely and repeatably exidrecover from angled and vertical launchers, traverse multi-thousand foot long pipe-sections, make T and varied-angle elbow-turns while wirelessly sending live video and handling command and control messages, was clearly demonstrated. Video-inspection was clearly shown to be a viable tool to understand the state of this critical buried infrastructure, irrespective of low- (cast-iron) or high-pressure (steel) conditions. This report covers the different aspects of specifications, requirements, design, prototyping, integration and testing and field-trialing of the Explorer platform.

Hagen Schempf; Daphne D'Zurko

2004-10-31T23:59:59.000Z

155

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

E-Print Network (OSTI)

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

Ravindran, Binoy

156

Real Time Flame Monitoring of Gasifier Burner and Injectors  

NLE Websites -- All DOE Office Websites (Extended Search)

8 8 Gasification Technologies contacts Gary J. stiegel Gasification Technology Manager National Energy Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236 412-386-4499 gary.stiegel@netl.doe.gov Jenny tennant Project Manager National Energy Technology Laboratory 3610 Collins Ferry Road P.O. Box 880 Morgantown, WV 26507 304-285-4830 jenny.tennant@netl.doe.gov David Rue Principal Investigator Gas Technology Institute 1700 South Mount Prospect Road Des Plaines, IL 60018 847-768-0508 david.rue@gastechnology.org Real Time Flame moniToRing oF gasiFieR BuRneR and injecToRs Description Combustion scientists and engineers have studied radiant emissions of various flames for many years. For some time, technologists have understood the rich potential for

157

Watching the acetylene vinylidene intramolecular reaction in real time  

E-Print Network (OSTI)

It is a long-standing dream of scientists to capture the ultra-fast dynamics of molecular or chemical reactions in real time and to make a molecular movie. With free-electron lasers delivering extreme ultraviolet (XUV) light at unprecedented intensities, in combination with pump-probe schemes, it is now possible to visualize structural changes on the femtosecond time scale in photo-excited molecules. In hydrocarbons the absorption of a single photon may trigger the migration of a hydrogen atom within the molecule. Here, such a reaction was filmed in acetylene molecules (C2H2) showing a partial migration of one of the protons along the carbon backbone which is consistent with dynamics calculations on ab initio potential energy surfaces. Our approach opens attractive perspectives and potential applications for a large variety of XUV-induced ultra-fast phenomena in molecules relevant to physics, chemistry, and biology.

Jiang, Y H; Rudenko, A; Madjet, M E; Vendrell, O; Kurka, M; Schnorr, K; Foucar, L; Kbel, M; Herrwerth, O; Lezius, M; Kling, M F; van Tilborg, J; Belkacem, A; Ueda, K; Dsterer, S; Treusch, R; Schrter, C D; Santra, R; Ullrich, J; Moshammer, R

2014-01-01T23:59:59.000Z

158

Model for LMFBR core transient analysis in real time  

SciTech Connect

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

Tzanos, C.P.

1986-01-01T23:59:59.000Z

159

Real-time aqueous tritium monitor using liquid scintillation counting  

SciTech Connect

An ability to continuously monitor low-level tritium releases in aqueous effluents is of particular interest to heavy water facilities such as those at the Savannah River Site (SRS) and Canadian CANDU reactors. SRS developed a real-time monitoring system based on flow-through liquid scintillation (LS) counting. Sensitivities of 16 pCi/mL and 1 pCi/mL result from five minute and daily averages of counting data respectively. This sensitivity is about 200 times better than similar methods using solid scintillants. The LS system features uncomplicated sample pretreatment, precise of the cocktail and sample water, system features uncomplicated sample pretreatment, precise proportioning of the cocktail and sample water, on-line quench corrections, cocktail consumption as low as 0.15 mL/min, and response to changes in environmental tritium is less than 30 minutes. Field tests demonstrate that conditions necessary for stable analytical results are achieved.

Sigg, R.A.; McCarty, J.E.; Livingston, R.R.; Sanders, M.A.

1994-07-01T23:59:59.000Z

160

Development of Real-Time Coal Monitoring Instrument  

SciTech Connect

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

Rajan Gurjar, Ph.D.

2010-06-17T23:59:59.000Z

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Real-time monitoring of the TVA power system  

SciTech Connect

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

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

1994-07-01T23:59:59.000Z

162

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

SciTech Connect

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

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

2011-06-01T23:59:59.000Z

163

Global scheduling on temperature-constrained multiprocessor real-time systems  

E-Print Network (OSTI)

In this thesis, we study temperature-constrained multiprocessor real-time systems, where real-time guarantees must be met without exceeding safe temperature levels within the processors. We focus on Pfair scheduling algorithms, especially ERfair...

Koo, Ja-Ryeong

2008-10-10T23:59:59.000Z

164

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

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

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

165

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

NLE Websites -- All DOE Office Websites (Extended Search)

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

166

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

Open Energy Info (EERE)

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

167

Telecommunications Policy 28 (2004) 603618 Real-time secondary markets for spectrum  

E-Print Network (OSTI)

Telecommunications Policy 28 (2004) 603­618 Real-time secondary markets for spectrum Jon M. Peha*,1

Peha, Jon M.

168

Deliberation Scheduling for Planning in Real-Time David J. Musliner  

E-Print Network (OSTI)

Deliberation Scheduling for Planning in Real-Time David J. Musliner Honeywell Laboratories david.musliner@honeywell

Krebsbach, Kurt D.

169

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

E-Print Network (OSTI)

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

Pázsit, Imre

170

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

E-Print Network (OSTI)

.8 [Simulation and Model- ing]: Types of Simulation--Animation; Keywords: Dynamic wind, snow, real time animationReal Time Dynamic Wind Calculation for a Pressure Driven Wind System Criss Martin Dept. of Computer University of North Texas Abstract We describe real time dynamic wind calculation for a pressure driven wind

Parberry, Ian

171

A Real-time Precrash Vehicle Detection System Zehang Sun1  

E-Print Network (OSTI)

A Real-time Precrash Vehicle Detection System Zehang Sun1 , Ronald Miller2 , George Bebis1-- This paper presents an in-vehicle real-time monocular precrash vehicle detection system. The system acquires have developed a real-time vehicle detection system using a Ford Motor Company proprietary low light

Bebis, George

172

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

E-Print Network (OSTI)

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

173

Cellular Neural Network for Real Time Image Processing  

SciTech Connect

Since their introduction in 1988, Cellular Nonlinear Networks (CNNs) have found a key role as image processing instruments. Thanks to their structure they are able of processing individual pixels in a parallel way providing fast image processing capabilities that has been applied to a wide range of field among which nuclear fusion. In the last years, indeed, visible and infrared video cameras have become more and more important in tokamak fusion experiments for the twofold aim of understanding the physics and monitoring the safety of the operation. Examining the output of these cameras in real-time can provide significant information for plasma control and safety of the machines. The potentiality of CNNs can be exploited to this aim. To demonstrate the feasibility of the approach, CNN image processing has been applied to several tasks both at the Frascati Tokamak Upgrade (FTU) and the Joint European Torus (JET)

Vagliasindi, G.; Arena, P.; Fortuna, L. [Dipartimento di Ingegneria Elettrica Elettronica e dei Sistemi - Universita degli Studi di Catania, I-95125 Catania (Italy); Mazzitelli, G. [ENEA-Gestione Grandi Impianti Sperimentali, via E. Fermi 45, I-00044 Frascati, Rome (Italy); Murari, A. [Consorzio RFX-Associazione EURATOM ENEA per la Fusione, I-35127 Padova (Italy)

2008-03-12T23:59:59.000Z

174

Protective materials with real-time puncture detection capability  

SciTech Connect

The protection of workers from chemical, biological, or radiological hazards requires the use of protective materials that can maintain their integrity during use. An accidental puncture in the protective material can result in a significant exposure to the worker. A five ply material has been developed that incorporates two layers of an electrically conductive polymer sandwiched between three layers of a nonconductive polymer. A normally open circuit that is connected between the conductive layers will be closed by puncturing the material with either a conductive or nonconductive object. This can be used to activate an audible alarm or visual beacon to warn the worker of a breach in the integrity of the material. The worker is not connected to the circuit, and the puncture can be detected in real-time, even when caused by a nonconductor.

Hermes, R.E.; Stampfer, J.F. [Los Alamos National Lab., NM (United States); Valdez-Boyle, L.S. [New Mexico Univ., Albuquerque, NM (United States). School of Medicine; Ramsey, D.R. [Paradigm Systems Corp, 1018 100th Place N.E., Bellevue, WA (United States)

1996-08-01T23:59:59.000Z

175

Method and apparatus for real time weld monitoring  

DOE Patents (OSTI)

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

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

1997-01-01T23:59:59.000Z

176

Suppressing qubit dephasing using real-time Hamiltonian estimation  

E-Print Network (OSTI)

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

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

2014-05-02T23:59:59.000Z

177

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

E-Print Network (OSTI)

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

Melhem, Rami

178

Real-time multi-mode neutron multiplicity counter  

DOE Patents (OSTI)

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

Rowland, Mark S; Alvarez, Raymond A

2013-02-26T23:59:59.000Z

179

Real time detection and correction of distribution feeder operational problems  

SciTech Connect

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

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

1995-12-31T23:59:59.000Z

180

Cybersecurity through Real-Time Distributed Control Systems  

SciTech Connect

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

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

2010-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

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

SciTech Connect

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

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

1997-04-01T23:59:59.000Z

182

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

SciTech Connect

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

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

2006-11-01T23:59:59.000Z

183

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

E-Print Network (OSTI)

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

Ravindran, Binoy

184

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

E-Print Network (OSTI)

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

Ravindran, Binoy

185

Spectral basis neural networks for real-time travel time forecasting  

SciTech Connect

This paper examines how real-time information gathered as part of intelligent transportation systems can be used to predict link travel times for one through five time periods ahead (of 5-min duration). The study employed a spectral basis artificial neural network (SNN) that utilizes a sinusoidal transformation technique to increase the linear separability of the input features. Link travel times from Houston that had been collected as part of the automatic vehicle identification system of the TranStar system were used as a test bed. It was found that the SNN outperformed a conventional artificial neural network and gave similar results to that of modular neural networks. However, the SNN requires significantly less effort on the part of the modeler than modular neural networks. The results, of the best SNN were compared with conventional link travel time prediction techniques including a Kalman filtering model, exponential smoothing model, historical profile, and real-time profile. It was found that the SNN gave the best overall results.

Park, D.; Rilett, L.R.; Han, G.

1999-12-01T23:59:59.000Z

186

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

E-Print Network (OSTI)

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

M., Vaidehi

2010-01-01T23:59:59.000Z

187

A dynamic vehicle routing problem based on real-time traffic information  

Science Journals Connector (OSTI)

We treat the dynamic vehicle routing problem with time windows (DVRPTW) in the context of real-time traffic information. We integrate traffic information obtained in real time to change the speed profile according to the accidents on the road network (congestion, etc.). The travel times are based on a time-dependent model in which the travel speeds are step functions. This model is enriched with an exponential smoothing function able to calculate the forecasted speed. The analysis of the results of these experiments shows that our method with real-time traffic information provides a good performance, a better robustness against a simple model with time dependent travel time.

Xin Zhao; Gilles Goncalves; Remy Dupas

2010-01-01T23:59:59.000Z

188

Use of GIS as a Real Time Decision Support System for Irrigation Districts  

E-Print Network (OSTI)

The use of GIS as a Real Time Decision Support System for Irrigation Districts Gabriele Bonaiti & Guy Fipps, P.E. Texas A&M AgriLife Extension Service, Biological & Agricultural Engineering Texas Water Resources Institute TR-435 December 2012... USE OF GIS AS A REAL TIME DECISION SUPPORT SYSTEM FOR IRRIGATION DISTRICTS Rio Grande Basin Initiative Irrigation Technology Program Texas A&M AgriLife Extension Service USE OF GIS AS A REAL TIME DECISION SUPPORT...

Bonaiti, G.; Fipps, G.

189

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

E-Print Network (OSTI)

Severin. Time-Varying Retail Electricity Prices: Theory andCustomer Risk from Real-Time Retail Electricity Pricing:Markets With Time-Invariant Retail Prices, RAND Journal of

Borenstein, Severin

2007-01-01T23:59:59.000Z

190

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

E-Print Network (OSTI)

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

Low, Steven H.

191

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

E-Print Network (OSTI)

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

Kortenkamp, David

192

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

NLE Websites -- All DOE Office Websites (Extended Search)

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

193

Storing Industry's Carbon Dioxide in Real Time | U.S. DOE Office...  

Office of Science (SC) Website

Storing Industry's Carbon Dioxide in Real Time Laboratory Policy (LP) LP Home About Laboratory Appraisal Process Laboratory Planning Process Laboratory Directed Research and...

194

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

E-Print Network (OSTI)

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

Boyer, Edmond

195

Dynamic Scheduling of Hard RealTime Applications in Open System Environment  

E-Print Network (OSTI)

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

196

Search Method for Real-time Knowledge Discovery Modeled on the...  

NLE Websites -- All DOE Office Websites (Extended Search)

Return to Search Search Method for Real-time Knowledge Discovery Modeled on the Human Brain Oak Ridge National Laboratory Contact ORNL About This Technology Publications: PDF...

197

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

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

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

198

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

NLE Websites -- All DOE Office Websites (Extended Search)

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

199

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

E-Print Network (OSTI)

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

Tan, Weihong

200

Journal Article: Real-time sub-ngstrom imaging of reversible...  

Office of Scientific and Technical Information (OSTI)

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

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

E-Print Network 3.0 - aperture real-time ultrasound Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

of Ultrasound in Medicine and National Electrical Manufacturers Association). ODS. Standard for real-time... Amendments were enacted. In the early 1990s, the FDA implemented...

202

Adaptive Real-Time Optimal Dispatch of Privately Owned Energy Storage Systems.  

E-Print Network (OSTI)

??In this thesis, a real-time optimal dispatching (RTOD) algorithm is developed by formulating a mixed integer linear programming problem to determine charging and discharging power (more)

Khani, Hadi

2014-01-01T23:59:59.000Z

203

Distributed Energy Consumption Control via Real-TimePricing Feedback in Smart Grid  

E-Print Network (OSTI)

on game- theoretic energy consumption scheduling for theK }). We denote the energy consumption of consumers as l kwhere l i k is the energy consumption of consumer i (i ? N )

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

2014-01-01T23:59:59.000Z

204

Distributed Energy Consumption Control via Real-TimePricing Feedback in Smart Grid  

E-Print Network (OSTI)

L. Garcia, Autonomous demand-Side management based on game-Czech Republic and demand side management, in Proc. 20th

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

2014-01-01T23:59:59.000Z

205

Distributed Energy Consumption Control via Real-TimePricing Feedback in Smart Grid  

E-Print Network (OSTI)

provider publishes the electricity price p(l k ), and thethe announcement of electricity price [5]. Recently, game3. The role of the electricity price is similar to the lever

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

2014-01-01T23:59:59.000Z

206

Distributed Energy Consumption Control via Real-TimePricing Feedback in Smart Grid  

E-Print Network (OSTI)

architecture for the smart grid, IEEE Netw. , vol. 25, no.scheduling for the future smart grid, IEEE Trans. Smartapproach, IEEE Trans. Smart Grid, vol. 3, no. 4, pp. 1767

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

2014-01-01T23:59:59.000Z

207

REAL TIME FLAME MONITORING OF GASIFIER BURNER AND INJECTORS  

SciTech Connect

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

James Servaites; Serguei Zelepouga; David Rue

2003-10-01T23:59:59.000Z

208

Real-time, automated characterization of surfaces for alpha and beta radiation  

SciTech Connect

A new data collection system, called ABACUS{trademark}, has been developed that automates and expedites the collection, conversion, and reporting of radiological survey data of surfaces. Field testing of the system by Oak Ridge National Laboratory/Environmental Technology Section is currently underway. Preliminary results are presented. The system detects, discriminates, and separately displays the results for alpha and beta contamination scans on floors and walls with a single pass. Fixed-position static counting is also possible for quantitative measuring. The system is currently configured with five 100 cm{sup 2} dual-phosphor plastic scintillation detectors mounted in a lightweight aluminum fixture that holds the detectors in a fixed array. ABACUS{trademark} can be configured with other detectors if desired. Ratemeter/scalars traditionally coupled to individual detectors have been replaced by a single unit that houses the power supply and discriminator circuit boards to support up to five detectors. The system is designed to be used by a single operator. Each detector`s position and data are transmitted once per second and recorded on a nearby laptop computer. The data are converted to appropriate units, color-coded, and mapped to display graphically the findings for each detector in real-time. Reports can be generated immediately following the survey. Survey data can be exported in a variety of formats. Benefits of ABACUS{trademark} are: (1) immediate feedback to decision makers using the observational approach to characterization or remediation, (2) thorough documentation of survey results, (3) increased statistical confidence in scans by recording counts every second, (4) reduced paperwork and elimination of transcription errors, and (5) time and cost savings for collection, conversion, mapping, evaluating, and reporting data over traditional methods.

Egidi, P.V. [Oak Ridge National Lab., Grand Junction, CO (United States). Environmental Technology Section; Flynn, C.R.; Blair, M.S.; Selfridge, R.J. [CHEMRAD Tennessee Corp., Oak Ridge, TN (United States)

1997-12-31T23:59:59.000Z

209

Real-Time Imaging of Pt3Fe Nanorod Growth in Solution  

Science Journals Connector (OSTI)

...real time. A growth solution of Pt(acetylacetonate) 2 (20 mg/mL) and Fe(acetylacetonate) 2 (20 mg/mL) dissolved in a solvent...real time. A growth solution of Pt(acetylacetonate)2 (20 mg/mL) and Fe(acetylacetonate...

Hong-Gang Liao; Likun Cui; Stephen Whitelam; Haimei Zheng

2012-05-25T23:59:59.000Z

210

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

E-Print Network (OSTI)

A real-time implementation of an ITU-T C.726 adaptive differential pulse code modulation (ADPCM) codec is developed for desktop, packet switched audio-conferencing over the Internet. The real-time codec is implemented in C on a UNIX (Solaris...

Kokes, Mark Gavin

2012-06-07T23:59:59.000Z

211

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

E-Print Network (OSTI)

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

Lemmon, Michael

212

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

E-Print Network (OSTI)

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

Bernstein, Phil

213

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

E-Print Network (OSTI)

Real-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation Lingwen Gan for handling the un- certainties of renewable generation. Traditionally, demand response has been focused in renewable generation. In this paper, we propose a real-time distributed deferrable load control algorithm

Low, Steven H.

214

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

E-Print Network (OSTI)

A Real-Time Decision Support System for High Cost Oil-Well Drilling Operations Odd Erik Gundersen In this paper we present DrillEdge - a commercial and award winning software system that monitors oil that provides real-time deci- sion support when drilling oil wells. Decisions are supported through analyzing

Aamodt, Agnar

215

Intelligent stale-frame discards for real-time video streaming over wireless ad hoc networks  

Science Journals Connector (OSTI)

This paper presents intelligent early packet discards (I-EPD) for real-time video streaming over amultihop wireless ad hoc network. In a multihop wireless ad hoc network, the quality of transferring real-time video streams could be seriously degraded, ...

Tsang-Ling Sheu; Yung-Shih Chi

2009-01-01T23:59:59.000Z

216

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

E-Print Network (OSTI)

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

Jansen, James

217

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

E-Print Network (OSTI)

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

Low, Steven H.

218

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

E-Print Network (OSTI)

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

Schumann, Heidrun

219

Real-Time Robot Motion Planning Using Rasterizing Computer Graphics Hardware  

E-Print Network (OSTI)

Real-Time Robot Motion Planning Using Rasterizing Computer Graphics Hardware Jed Lengyel Mark Reichert Bruce R. Donaldy Donald P. Greenbergz Abstract We presenta real-time robot motion plannerthatis, and all paths returned are safe. The planner can handle any polyhedral geometry of robot and obstacles

Richardson, David

220

RealTime Robot Motion Planning Using Rasterizing Computer Graphics Hardware  

E-Print Network (OSTI)

Real­Time Robot Motion Planning Using Rasterizing Computer Graphics Hardware Jed Lengyel \\Lambda Mark Reichert \\Lambda Bruce R. Donald y Donald P. Greenberg z Abstract We present a real­time robot geometry of robot and obstacles, including disjoint and highly concave unions of polyhedra. The planner

Richardson, David

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Power saving and fault-tolerance in real-time critical embedded systems  

Science Journals Connector (OSTI)

In this paper, a method with the double purpose of reducing the consumption of energy and giving a deterministic guarantee on the fault tolerance of real-time embedded systems operating under the Rate Monotonic discipline is presented. A lower bound ... Keywords: Embedded systems, Energy-aware, Fault-tolerance, Real-time

Rodrigo M. Santos; Jorge Santos; Javier D. Orozco

2009-02-01T23:59:59.000Z

222

Performance Analysis of the Sporadic Server Implementation in Real-Time Specification for Java  

Science Journals Connector (OSTI)

In this paper, we introduce the implementation ofthe Sporadic Server algorithm at the user level in Real TimeJava. That is, we do not modify the specification of the JavaVirtual Machine (JVM) so our proposal runs without problemson every JVM with support ... Keywords: real time java, aperiodic handling

Carlos M. Tripode; Rodrigo Santos; Javier Orozco

2011-11-01T23:59:59.000Z

223

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

E-Print Network (OSTI)

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

Parker, Gary B.

224

DECENTRALIZED REAL-TIME MANAGEMENT LARGELY UNPREDICTABLE POWER NEEDS AND SUPPLY  

E-Print Network (OSTI)

to decentralized and adaptive electric power manage- ment through a distributed real-time multi-agent architecture briefly outline a two-stage distributed negotiation algo- rithm, for day-ahead planning and handling Keywords: distributed real-time systems, embedded systems, safety-critical systems, dis- tributed energy

Wedde, Horst F.

225

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

E-Print Network (OSTI)

Impact of Storage on the Efficiency and Prices in Real-Time Electricity Markets Nicolas Gast Jean in dynamic real-time electricity markets. We consider that demand and renewable generation are stochastic of a competitive equilibrium when players are price-takers (they do not affect market prices). We further establish

Paris-Sud XI, Université de

226

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

E-Print Network (OSTI)

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

Paris-Sud XI, Université de

227

Reducing WWW Latency and Bandwidth Requirements by RealTime Distillation  

E-Print Network (OSTI)

Reducing WWW Latency and Bandwidth Requirements by Real­Time Distillation Armando Fox and Eric A Distillation and Refinement Can Help 1. The Concept of Datatype­Specific Distillation 2. Refinement 3. Trading. Optimizing for Rendering on Impoverished Devices 3. An Implemented HTTP Proxy Based on Real­Time Distillation

California at Berkeley, University of

228

6189-47, Session 10 Optical spatial filtering velocimetry sensor for real-time  

E-Print Network (OSTI)

transforming system instead, the sensor will allow measurement of rotational vibration without direct6189-47, Session 10 Optical spatial filtering velocimetry sensor for real-time in-plane vibration-contact, low-cost optical sensor for real time detection and active vibration control of mechanical devices

229

Scheduling with Quality of Service requirements in Real-Time Energy Harvesting sensors  

E-Print Network (OSTI)

Scheduling with Quality of Service requirements in Real-Time Energy Harvesting sensors Maissa; deadlines; energy reservoir; Quality of Service. I. INTRODUCTION Nowadays, embedded systems are in consumer energy. IV. QUALITY OF SERVICE IN FIRM REAL-TIME SYSTEMS A. Skip-Over: a suitab

Paris-Sud XI, Université de

230

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

E-Print Network (OSTI)

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

Feitelson, Dror

231

Imaging the Brain in Real-Time with PET-Enabled "Helmet Cam"  

NLE Websites -- All DOE Office Websites (Extended Search)

Imaging the Brain in Real-Time with a PET-Enabled "Helmet-Cam" Imaging the Brain in Real-Time with a PET-Enabled "Helmet-Cam" A. Nadeem Ishaque, Ph.D. 2014.09.30 Isaac Asimov...

232

A Real-Time Java Virtual Machine with Applications in Avionics  

E-Print Network (OSTI)

A Real-Time Java Virtual Machine with Applications in Avionics Austin Armbruster The Boeing Company Purdue University and Edward Pla, The Boeing Company and Marek Prochazka SciSys and Jan Vitek Purdue with the Boeing PRiSMj software and the Ovm Real-time JVM. for avionics, shipboard computing and simulation [Child

Vitek, Jan

233

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

E-Print Network (OSTI)

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

234

OSCAR API for Real-time Low-Power Multicores and Its Performance on Multicores  

E-Print Network (OSTI)

OSCAR API for Real-time Low-Power Multicores and Its Performance on Multicores and SMP Servers://www.kasahara.cs.waseda.ac.jp/ Abstract. OSCAR (Optimally Scheduled Advanced Multiprocessor) API has been designed for real-time embedded by using the OSCAR parallelizing compiler. The OSCAR API has been developed by Waseda University

Kasahara, Hironori

235

Toward an Optimal Fixed-Priority Algorithm for Energy-Harvesting Real-Time Systems  

E-Print Network (OSTI)

on their energy consumption. Thus, the results of this work rely on the assumption that tasks energy consumptionToward an Optimal Fixed-Priority Algorithm for Energy-Harvesting Real-Time Systems Yasmina the real-time xed-priority scheduling problem for battery-powered embedded systems whose energy storage

Paris-Sud XI, Université de

236

Real-Time Control of Full Actuated Biped Robot Based on Nonlinear Model Predictive Control  

Science Journals Connector (OSTI)

A trajectory free walking control scheme was proposed for actuated biped robot with the NMPC method in order to carry out real-time gait programming. The basic feature in the proposed strategy is to use iterative on-line optimization approach to compute ... Keywords: NMPC, biped robot, real-time gait programming

Zhibin Zhu; Yan Wang; Xinglin Chen

2008-10-01T23:59:59.000Z

237

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

E-Print Network (OSTI)

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

Quake, Stephen R.

238

Comparative analysis of two different middleware approaches for reconfiguration of distributed real-time systems  

Science Journals Connector (OSTI)

Software-based reconfiguration of distributed real-time systems is a complex problem with many sides to it ranging from system-wide concerns down to the intrinsic non-robust nature of the specific middleware layer and the used programming techniques. ... Keywords: Distributed systems, Middleware, Real-time, Reconfiguration

Marisol Garca Valls; Pablo Basanta Val

2014-02-01T23:59:59.000Z

239

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

E-Print Network (OSTI)

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

Paris-Sud XI, Université de

240

A Real-Time Distributed Hash Table Tao Qian, Frank Mueller  

E-Print Network (OSTI)

obtain PMU data from other PDCs. The second problem is how to communicate between these PDCs, so services to upper layer applications. In our DHT, the data of one PMU are not only stored in the PDC this monitoring data as a real-time service to an upper layer decentralized control system. Our real-time DHT

Mueller, Frank

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

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

E-Print Network (OSTI)

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

Nahrstedt, Klara

242

A Memory Aware Behavioral Synthesis Tool for Real-Time VLSI Circuits  

E-Print Network (OSTI)

A Memory Aware Behavioral Synthesis Tool for Real-Time VLSI Circuits Gwenol´e Corre, Eric Senn the mem- ory architecture and the memory mapping in the Behav- ioral Synthesis of Real-Time VLSI circuits. We formalize the memory mapping as a set of constraints for the syn- thesis, and defined a Memory

Paris-Sud XI, Université de

243

Demonstration abstract: airfeed: indoor real time interactive air quality monitoring system  

Science Journals Connector (OSTI)

Solutions to outdoor air pollution require societal changes; however, we focus on indoor home air quality to allow for individual control over the breathing environment. We present AirFeed: a real time air quality monitoring system that provides measurements ... Keywords: air quality, human activity, monitoring, real time

Kyeong T. Min, Andrzej Forys, Thomas Schmid

2014-04-01T23:59:59.000Z

244

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

E-Print Network (OSTI)

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

Schulze, Jürgen P.

245

CERTS Review REAL-TIME PRICE FORECAST WITH BIG DATA A STATE SPACE APPROACH  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Review Review REAL-TIME PRICE FORECAST WITH BIG DATA A STATE SPACE APPROACH Lang Tong (PI), Robert J. Thomas, Yuting Ji, and Jinsub Kim School of Electrical and Computer Engineering, Cornell University Jie Mei, Georgia Institute of Technology August 7, 2013 CERTS Review DATA QUALITY AND ITS EFFECTS ON MARKET OPERATIONS DENY OF SERVICE ATTACK ON REAL-TIME ELECTRICITY MARKET COVER UP PROTECTION AGAINST TOPOLOGY ATTACK Lang Tong (PI), Robert J. Thomas, and Jinsub Kim Cornell University August 8, 2013 Project overview  Objectives  Accurate short-term probabilistic forecasting of real-time LMP.  Incorporate real-time measurements (e.g. SCADA/PMU).  Scalable computation techniques.  Summary of results  A real-time LMP model with forecasting and measurement

246

Wireless technology collects real-time information from oil and gas wells  

NLE Websites -- All DOE Office Websites (Extended Search)

Wireless technology collects real-time information from oil and gas Wireless technology collects real-time information from oil and gas wells Wireless technology collects real-time information from oil and gas wells The patented system delivers continuous electromagnetic data on the reservoir conditions, enabling economical and effective monitoring and analysis. April 3, 2012 One of several active projects, LANL and Chevron co-developed INFICOMM(tm), a wireless technology used to collect real-time temperature and pressure information from sensors in oil and gas wells, including very deep wells already producing oil and gas and drilling operations for new wells. One of several active projects, LANL and Chevron co-developed INFICOMM(tm), a wireless technology used to collect real-time temperature and pressure information from sensors in oil and gas wells, including very deep wells

247

Fast, multi-channel real-time processing of signals with microsecond latency using graphics processing units  

SciTech Connect

Fast, digital signal processing (DSP) has many applications. Typical hardware options for performing DSP are field-programmable gate arrays (FPGAs), application-specific integrated DSP chips, or general purpose personal computer systems. This paper presents a novel DSP platform that has been developed for feedback control on the HBT-EP tokamak device. The system runs all signal processing exclusively on a Graphics Processing Unit (GPU) to achieve real-time performance with latencies below 8 ?s. Signals are transferred into and out of the GPU using PCI Express peer-to-peer direct-memory-access transfers without involvement of the central processing unit or host memory. Tests were performed on the feedback control system of the HBT-EP tokamak using forty 16-bit floating point inputs and outputs each and a sampling rate of up to 250 kHz. Signals were digitized by a D-TACQ ACQ196 module, processing done on an NVIDIA GTX 580 GPU programmed in CUDA, and analog output was generated by D-TACQ AO32CPCI modules.

Rath, N., E-mail: Nikolaus@rath.org; Levesque, J. P.; Mauel, M. E.; Navratil, G. A.; Peng, Q. [Department of Applied Physics and Applied Mathematics, Columbia University, 500 W 120th St, New York, New York 10027 (United States)] [Department of Applied Physics and Applied Mathematics, Columbia University, 500 W 120th St, New York, New York 10027 (United States); Kato, S. [Department of Information Engineering, Nagoya University, Nagoya (Japan)] [Department of Information Engineering, Nagoya University, Nagoya (Japan)

2014-04-15T23:59:59.000Z

248

Towards Real Time Optimal Auto-tuning of PID Controllers  

E-Print Network (OSTI)

applications is known as the Proportional, Integral, and Derivative (PID) Controller. The PID controller is popular because it provides good performance under wide operating conditions and is functionally simple to implement [1]. The simplicity arises from... and the function qf (?) be as already defined. Let 0 = ?0 < ?1 < . . . < ?l?1 be the real, non-negatibve, distinct finite zeros of qf (?) with odd multiplicities. Define a sequence of numbers i0, i1, . . . , il as follows: (i) If N?(j?t) = 0 for some t = 1, 2...

Hill, Aaron Jamison

2013-08-22T23:59:59.000Z

249

Real-Time Ensemble Control with Reduced-Order Modeling  

E-Print Network (OSTI)

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

Lin, Binghuai

250

Decision-feedback multiple differential detection for space-time coded OFDM systems  

E-Print Network (OSTI)

by an irreducible error floor if the fading bandwidth is larger than zero. Decision-feedback differential detection (DF-DD) is found to be a very effective method to reduce such an error floor with a very low computational complexity. In this thesis, we first apply...

Liu, Yan

2001-01-01T23:59:59.000Z

251

Real-time flavor tagging selection in ATLAS  

E-Print Network (OSTI)

In high-energy physics experiments, online selection is crucial to reject most uninteresting collisions; in particular, b-jet selections, part of the ATLAS trigger strategy, are meant to select final states with heavy-flavor content. This is the only option to select fully hadronic final states containing b-jets, and is important to reject QCD light jets and maintain affordable trigger rates without raising jet energy thresholds. ATLAS operated b-jet triggers in both 2011 and 2012 data-taking campaigns and is now working to improve the performance of tagging algorithms for Run2. An overview of the ATLAS b-jet trigger strategy and its performance on real data is presented in this contribution, along with future prospects. Data-driven techniques to extract the online b-tagging performance, a key ingredient for all analyses relying on such triggers, are also discussed and results presented.

Sahinsoy, M; The ATLAS collaboration

2014-01-01T23:59:59.000Z

252

Differentiated Time-Frequency Characteristics Based Real-Time Motion Decoding for Lower Extremity Rehabilitation Exoskeleton Robot  

Science Journals Connector (OSTI)

Decode the human motion intension precisely in real time is the ... the biomechanism of skeletal muscle; DPSE (Differentiated Power Spectrum Estimation) method is applied to extract ... Results show the human-mac...

Yuanjie Fan; Yuehong Yin

2012-01-01T23:59:59.000Z

253

A Real Time Expert Control System for Helicopter Autorotation  

E-Print Network (OSTI)

on roll and pitch angles during the touchdown phase (See Table 2.1) TOUCHDOWN_COL_DECREASE Constant collective pitch rate during touchdown phase (See Table 2.1) TTIF Desired time to impact during the are phase (See Table 2.3) TTI_F_MAX Maximum cap... on the desired time to impact dur- ing the are phase (See Table 2.1) TTI_L Desired time to impact during the landing phase (See Tables 2.1 and 2.3) TTLE Time to landing entry (See Table 2.3) U_AUTO Desired forward speed for the steady state descent phase...

Sunberg, Zachary Nolan

2013-04-22T23:59:59.000Z

254

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

E-Print Network (OSTI)

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

Paris-Sud XI, Université de

255

Experimental demonstration of optical real-time data compressiona) Mohammad H. Asghari1,b)  

E-Print Network (OSTI)

conventional dispersive Fourier transform. Dispersive data compression addresses the big data problem in real below the Nyquist rate are oversampled creating a "big data" problem in real-time instruments generate mas- sive amounts of data (as high as 1 Tbit/s) creating a severe big data problem in detection

Jalali. Bahram

256

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

E-Print Network (OSTI)

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

257

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

E-Print Network (OSTI)

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

Nasipuri, Asis

258

Real-Time Detection of Packet Drop Attacks on Synchrophasor Data  

E-Print Network (OSTI)

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

Sikdar, Biplab

259

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

E-Print Network (OSTI)

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

Lin, Xi

260

Energy efficient scheduling techniques for real-time embedded systems  

E-Print Network (OSTI)

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

Prathipati, Rajesh Babu

2004-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

New Operators for the TURTLE Real-Time UML Profile  

Science Journals Connector (OSTI)

In a previous paper, we defined TURTLE, a Timed UML and RT-LOTOS Environment ... RTL toolset. This paper presents an enhanced TURTLE with new composition operators (Invocation, Periodic, Suspend / Resume...) and ...

Christophe Lohr; Ludovic Apvrille

2003-01-01T23:59:59.000Z

262

Real-time flavor tagging selection in ATLAS  

E-Print Network (OSTI)

In high-energy physics experiments on hadron colliders, online selection is crucial to reject most uninteresting collisions. In particular, the ATLAS experiment includes b-jet selections in its trigger strategy, in order to select final states with heavy-flavor content and enlarge its physics potentials. Dedicated selections are developed to quickly identify fully hadronic final states containing b-jets, while rejecting light QCD jets, and maintain affordable trigger rates without raising jet energy thresholds. ATLAS successfully operated b-jet trigger selections during both 2011 and 2012 data-taking campaigns and hard work is on-going now to improve the performance of tagging algorithms for coming Run2 in 2015. An overview of the ATLAS b-jet trigger strategy and its performance on real data is presented in this contribution, along with future prospects. Data-driven techniques to extract the online b-tagging performance, a key ingredient for all analyses relying on such triggers, are also discussed and result...

Madaffari, D; The ATLAS collaboration

2014-01-01T23:59:59.000Z

263

Prototyping the R-Shell Real-Time Environment  

E-Print Network (OSTI)

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

Oswal, Snehal M.

1993-01-01T23:59:59.000Z

264

Stochastic quantization of real-time thermal field theory  

SciTech Connect

We use the stochastic quantization method to obtain the free scalar propagator of a finite temperature field theory formulated in the Minkowski space-time. First, we use the Markovian stochastic quantization approach to present the two-point function of the theory. Second, we assume a Langevin equation with a memory kernel and a colored noise. The convergence of the Markovian and non-Markovian stochastic processes in the asymptotic limit of the fictitious time is obtained. Our formalism can be the starting point to discuss systems at finite temperature out of equilibrium.

Aguiar, T. C. de; Svaiter, N. F. [Centro Brasileiro de Pesquisas Fisicas (CBPF), Rua Dr. Xavier Sigaud 150, Rio de Janeiro 22290-180, Rio de Janeiro (Brazil); Menezes, G. [Instituto de Fisica Teorica, Universidade Estadual Paulista, Rua Dr. Bento Teobaldo Ferraz 271, Bloco II, Barra Funda, Sao Paulo 01140-070, Sao Paulo (Brazil)

2010-10-15T23:59:59.000Z

265

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

E-Print Network (OSTI)

. This enables the use of the dynamic slack caused by the variability of execution time, to reduce energy devices may be moti- vated by several factors: extended battery lifetime, re- duced need for heat sinks improved environmental sustainabil- ity. Various policies for energy savings have been widely deployed

266

Steps to Establish a Real-Time Transmission Monitoring System for  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Steps to Establish a Real-Time Transmission Monitoring System for Steps to Establish a Real-Time Transmission Monitoring System for Transmission Owners and Operators within the Eastern and Western Interconnections Steps to Establish a Real-Time Transmission Monitoring System for Transmission Owners and Operators within the Eastern and Western Interconnections Steps to establish a real-time transmission monitoring system for transmission owners and operators within the Eastern and Western interconnections: a report to congress pursuant to section 1839 of the Energy Policy Act of 2005. Section 1839 of the Energy Policy Act of 2005 (EPAct 2005) directs the Secretary of Energy (DOE) and the Federal Energy Regulatory Commission (Commission) to study and report to Congress on the steps that must be taken to establish a system to make available to all transmission owners

267

Deployment of Demand Response as a Real-Time Resource in Organized Markets  

Open Energy Info (EERE)

Deployment of Demand Response as a Real-Time Resource in Organized Markets Deployment of Demand Response as a Real-Time Resource in Organized Markets Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Deployment of Demand Response as a Real-Time Resource in Organized Markets Focus Area: Crosscutting Topics: Potentials & Scenarios Website: www.sciencedirect.com/science/article/pii/S1040619008000973 Equivalent URI: cleanenergysolutions.org/content/deployment-demand-response-real-time- Language: English Policies: "Deployment Programs,Regulations" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. DeploymentPrograms: Technical Assistance Regulations: Resource Integration Planning This article examines the use of demand response as a dispatchable resource

268

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

E-Print Network (OSTI)

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

Boyer, Edmond

269

A dynamic slack management technique for real-time distributed embedded systems  

E-Print Network (OSTI)

This work presents a novel slack management technique, the Service Rate Based Slack Distribution Technique, for dynamic real-time distributed embedded systems targeting the reduction and management of energy consumption. Energy minimization...

Acharya, Subrata

2006-04-12T23:59:59.000Z

270

A three-pass establishment protocol for real-time multiparty communication  

E-Print Network (OSTI)

in the literature. They are severely limited when it comes to reserve resource for multiparty communication environments, in particular for multicast connections. We propose a new protocol for connection establishment in a real-time one-to-many communication...

Yoon, Jaehee

2012-06-07T23:59:59.000Z

271

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

E-Print Network (OSTI)

Successful Real Time Pricing (RTP) Tieline Control Must Do More than Save Money James Robinson PE, P.Eng, CEM, CEP DES Canada, Corporation (484) 868.1901 JRobinson@DES-EMS.com Abstract: Industrial cogeneration facilities are finding...

Robinson, J.

2008-01-01T23:59:59.000Z

272

Catching fish in the stream: real time analysis of audience behavior in social media  

Science Journals Connector (OSTI)

In this interactive poster, we describe a system we designed for identifying and tracking the behavior of distinct audiences in social media streams. Keywords: audience behavior, real-time analysis, social media

Yu-Ru Lin; Drew Margolin; Brian Keegan; Mauro Martino; Sasha Goodman; David Lazer

2013-02-01T23:59:59.000Z

273

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

E-Print Network (OSTI)

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

Ungerer, Theo

274

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

E-Print Network (OSTI)

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

Zhang, J.

2006-01-01T23:59:59.000Z

275

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

E-Print Network (OSTI)

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

Vrugt, Jasper A.

276

Real Time Control of a Shuttle Phase Change Material Experiment Using Flight Correlated Algorithms  

Science Journals Connector (OSTI)

This paper presents a summary of the methods and algorithms used for the real time control of the Brilliant Eyes Thermal Storage Unit (BETSU) experiment. The BETSU utilized 2-methyl pentane as a 120 K Phase Change

D. S. Glaister; K. D. Bell; D. J. Hernandez; M. Bello

1995-01-01T23:59:59.000Z

277

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

E-Print Network (OSTI)

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

Ojo, Temitope O.

2006-08-16T23:59:59.000Z

278

Real-time push middleware and mobile application for electric vehicle smart charging and aggregation  

Science Journals Connector (OSTI)

This paper presents a real-time push middleware and mobile application for data and multimedia content delivery to enable electric vehicle smart charging and aggregation. Intelligent aggregation and charge scheduling software can leverage the battery ...

Siddhartha Mal; Rajit Gadh

2013-06-01T23:59:59.000Z

279

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

E-Print Network (OSTI)

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

Paris-Sud XI, Université de

280

Real-time implementation of a vision based automatic push button  

E-Print Network (OSTI)

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

Rajkotwala, Farida

2012-06-07T23:59:59.000Z

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281

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

E-Print Network (OSTI)

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

Tam, Pak-Yin

2012-06-07T23:59:59.000Z

282

EOS: an object-oriented operating system for embedded real-time applications  

Science Journals Connector (OSTI)

Increases in hardware availability and capability have caused microprocessor based real-time embedded systems to become increasingly pervasive [8,9]. With this popularity, however, has come an increase in the size and complexity of embedded applications. ...

David Langan

1993-03-01T23:59:59.000Z

283

A PriorityBased Scheduling Algorithm for RealTime Databases Sang H. Son  

E-Print Network (OSTI)

Science University of Virginia Charlottesville, Virginia 22903, USA Seog Park Department of Computer Science Sogang University Seoul, Korea ABSTRACT Database systems for real­time applications must satisfy integrated manufacturing, aerospace, traffic control systems, nuclear power plants, robotics, military

Son, Sang H.

284

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

E-Print Network (OSTI)

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

Heller, Barbara

285

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

E-Print Network (OSTI)

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

Jacob, Suresh

2012-06-07T23:59:59.000Z

286

Real-Time Modeling of Ocean Currents for Navigating Underwater Glider Sensing Networks  

Science Journals Connector (OSTI)

Ocean models that are able to provide accurate and real-time prediction of ocean currents will improve the performance of glider navigation. ... a novel approach to compute a model for ocean currents at higher re...

Dongsik Chang; Xiaolin Liang; Wencen Wu

2014-01-01T23:59:59.000Z

287

FPGA Based Real-Time Emulation of Single Phase H-Bridge Inverter  

Science Journals Connector (OSTI)

Traditional simulation software such as MATLAB/SIMULINK has shortcomings of low speed and high demand for computer hardware. This paper presents an FPGA based real-time simulation for power electronic devices. An...

Peng Dai; Hongshun Zhu; Xiao Fu; Guangzhou Wang

2011-01-01T23:59:59.000Z

288

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

E-Print Network (OSTI)

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

North Carolina at Chapel Hill, University of

289

Real-time shadow moire vibration measurement: method featuring simple setup, high sensitivity, and exact calibration  

Science Journals Connector (OSTI)

A new, simple low-cost method is presented for real-time measurement of arbitrary vibrations using the shadow moire technique. It is shown, by comparing with holographic measurements,...

Dirckx, J J J; Decraemer, W F; Janssens, J L

1986-01-01T23:59:59.000Z

290

Generators for Synthesis of QoS Adaptation in Distributed Real-Time Embedded Systems  

Science Journals Connector (OSTI)

This paper presents a model-driven approach for generating Quality-of-Service (QoS) adaptation in Distributed Real-Time Embedded (DRE) systems. The ... - the Adaptive Quality Modeling Language. Multiple generators

Sandeep Neema; Ted Bapty; Jeff Gray

2002-01-01T23:59:59.000Z

291

Real-time programming and the big ideas of computational literacy  

E-Print Network (OSTI)

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

Hancock, Christopher Michael, 1961-

2003-01-01T23:59:59.000Z

292

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

E-Print Network (OSTI)

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

Paris-Sud XI, Université de

293

An Algorithm for Icon Labelling on a Real-Time Map  

Science Journals Connector (OSTI)

An algorithm has been developed for icon labelling on a real-time map. The ... on a least-disturbing definition and positions the icons in an area where they obscure the ... has been performed which demonstrates ...

Lars Harrie; Hanna Stigmar; Tommi Koivula

2005-01-01T23:59:59.000Z

294

Antibiotic assisted molecular ion transport across a membrane in real time  

E-Print Network (OSTI)

Antibiotic assisted molecular ion transport across a membrane in real time Jian Liu, Xiaoming Shang of various chemical and physical phenomena as well as applications such as solar energy conversion, catalysis

Eisenthal, Kenneth B.

295

header for SPIE use Real-Time Weather Data on Terrain  

E-Print Network (OSTI)

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

Shaw, Chris

296

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

E-Print Network (OSTI)

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

297

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

E-Print Network (OSTI)

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

298

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

E-Print Network (OSTI)

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

Smith, Graeme

299

Real-time impluse-based rigid body simulation and rendering  

E-Print Network (OSTI)

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

Yuksel, Can

2007-09-17T23:59:59.000Z

300

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

E-Print Network (OSTI)

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

George, John Vijoe

2005-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

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

E-Print Network (OSTI)

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

Clare, Andrew S

2013-01-01T23:59:59.000Z

302

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

E-Print Network (OSTI)

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

Zhang, Ying-Bi

1997-01-01T23:59:59.000Z

303

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

E-Print Network (OSTI)

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

Barba, M.

2002-01-01T23:59:59.000Z

304

Automatic real-time lip synchronization using LPC analysis and neural networks  

E-Print Network (OSTI)

the process of generating real-time lip sync animation, while keeping the resulting animation as believable as possible. Using a single audio voice track or live microphone input, the implemented program extracts distinguishing features from the audio signal...

Haaser, Christina Marie

2012-06-07T23:59:59.000Z

305

Model for LMFBR core transient analysis in real-time  

SciTech Connect

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

Tzanos, C.P.

1986-01-01T23:59:59.000Z

306

Real Time Computational Algorithms for Eddy Current Based Damage Detection  

E-Print Network (OSTI)

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

307

Real-time metaphorical visualization of multi-dimensional environmental data  

E-Print Network (OSTI)

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

Aley, Eric Brian

2006-08-16T23:59:59.000Z

308

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

E-Print Network (OSTI)

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

Southern California, University of

309

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

E-Print Network (OSTI)

as an earth observations system [4]; remote sensor measurements (radar measurements) from an environmental situation (the Arctic surface) are processed and analyzed at a real-time rate to yield a usable output data product (ice statistics) which in turn...REAL-TIME PROCESSING OF REMOTE SENSOR DATA AS APPLIED TO ARCTIC ICE CLASSIFICATION A Thesis by JAMES AUSTIN PERMENTER partial ! Submitted to the Graduate College of Texas A)M University in fulfillment of the requirement for the degree...

Permenter, James Austin

1973-01-01T23:59:59.000Z

310

Real-time vibration measurement by a spatial phase-shifting technique with a tilted holographic interferogram  

Science Journals Connector (OSTI)

Real-time vibration measurement by a tilted holographic interferogram is presented that utilizes the real-time digital fringe processor of a video signal. Three intensity data sampled...

Nakadate, Suezou; Isshiki, Masaki

1997-01-01T23:59:59.000Z

311

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

E-Print Network (OSTI)

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

Krishna Moorthy, Jayasankar

1997-01-01T23:59:59.000Z

312

Real Time Tomography at the Swiss Light Source  

SciTech Connect

The penetrating power of X-rays coupled with the high flux of 3rd generation synchrotron sources makes X-ray tomography to excel among fast imaging methods . To exploit this asset of synchrotron sources is the motivation for setting up an ultra-fast tomography endstation at the TOMCAT beamline. The state of the art instruments at synchrotron sources offer routinely a temporal resolution of tens of seconds in tomography. For a number of applications, for example biomedical studies, the relevant time scales (breathing, heartbeat) are rather in the range of 0.5-2 seconds. To overcome motion artifacts when imaging such systems a new ultra-fast tomographic data acquisition scheme is being developed at the TOMCAT beamline. We can acquire a full set of projections at sub-second timescale in monochromatic or white-beam configuration. We present a feasibility study with the ultimate aim to achieve sub-second temporal resolution in 3D without significant deterioration of the spatial resolution. For the first time, the 3D dynamics of the very early stages of a quickly aging liquid foam can be visualised with high quality and sufficiently large field of view.

Mokso, R.; Marone, F. [Swiss Light Source, Paul Scherrer Institut, 5232 Villigen (Switzerland); Stampanoni, M. [Swiss Light Source, Paul Scherrer Institut, 5232 Villigen (Switzerland); Institute for Biomedical Engineering, University and ETH Zurich, Zurich (Switzerland)

2010-06-23T23:59:59.000Z

313

Real-time flavor tagging selection in ATLAS  

E-Print Network (OSTI)

In high-energy physics experiments the online selection is crucial to reject the overwhelming uninteresting collisions. In particular the ATLAS experiment includes b-jet selections in its trigger, in order to select final states with significant heavy-flavor content. Dedicated selections are developed to timely identifying fully hadronic final states containing b-jets and maintaining affordable trigger rates. ATLAS successfully operated b-jet trigger selections during both 2011 and 2012 Large Hadron Collider data-taking campaigns. Work is on-going now to improve the performance of online tagging algorithms to be deployed in Run 2 in 2015. An overview of the Run 1 ATLAS b-jet trigger strategy along with future prospects is presented in this paper. Data-driven techniques to extract the online b-tagging performance, a key ingredient for all analysis relying on such triggers, are also discussed and preliminary results presented.

Madaffari, D; The ATLAS collaboration

2014-01-01T23:59:59.000Z

314

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

E-Print Network (OSTI)

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

Hu, Huosheng

315

Real-time Building Energy Simulation using EnergyPlus and the Building  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-time Building Energy Simulation using EnergyPlus and the Building Real-time Building Energy Simulation using EnergyPlus and the Building Controls Virtual Test Bed Title Real-time Building Energy Simulation using EnergyPlus and the Building Controls Virtual Test Bed Publication Type Conference Proceedings LBNL Report Number LBNL-5390E Year of Publication 2011 Authors Pang, Xiufeng, Prajesh Bhattacharya, Zheng O'Neill, Philip Haves, Michael Wetter, and Trevor Bailey Conference Name Proc. of the 12th IBPSA Conference Pagination p. 2890-2896 Date Published 11/2011 Conference Location Sydney, Australia Abstract Most commercial buildings do not perform as well in practice as intended by the design and their performances often deteriorate over time. Reasons include faulty construction, malfunctioning equipment, incorrectly configured control systems and inappropriate operating procedures (Haves et al., 2001, Lee et al., 2007). To address this problem, the paper presents a simulation-based whole building performance monitoring tool that allows a comparison of building actual performance and expected performance in real time. The tool continuously acquires relevant building model input variables from existing Energy Management and Control System (EMCS). It then reports expected energy consumption as simulated of EnergyPlus. The Building Control Virtual Test Bed (BCVTB) is used as the software platform to provide data linkage between the EMCS, an EnergyPlus model, and a database. This paper describes the integrated real-time simulation environment. A proof-of-concept demonstration is also presented in the paper.

316

Sequential linearization as an approach to real-time marine gas turbine simulation  

SciTech Connect

A read-time marine gas turbine simulation would offer an essential basis for advanced marine propulsion control designs. such designs may be realized as model reference controllers and/or health monitoring controllers. This paper presents an approach to real-time turbine simulation, using a method of sequential state space linearizations. The linearizations are shown to be simple enough to be computed in real time. Comparisons between simulations and experiments are presented and discussed. The approach is shown to have very good accuracy for both transient and steady-state predictions.

Smith, D.L.; Stammetti, V.A. (Naval Postgraduate School, Monterey, CA (USA). Dept. of Mechanical Engineering)

1990-04-01T23:59:59.000Z

317

Validation of real-time PCR for detection of six major pathogens in seafood products  

Science Journals Connector (OSTI)

Abstract Seafood can pose a public health concern to consumers. It is often consumed raw and may be contaminated with several foodborne pathogens. In order to guarantee the safety of seafood, real-time polymerase chain reaction (PCR) protocols may be used as these enable results to be provided within 24h. The first goal of our work was to develop real-time PCR protocols enabling the detection of six foodborne pathogens that may be present in seafood products (Campylobacter jejuni, Campylobacter coli, enterohemorrhagic Escherichia coli, Salmonella spp., Vibrio parahaemolyticus, and Vibrio vulnificus). The corresponding gene targets were: 50S/VS1, rfbE, ttr, tlh, and vvp. A multiplex PCR was also developed to detect the virulence genes of V.parahaemolyticus: tdh and trh. A total of 420 bacterial strains belonging to four different genera/strains were used in this study. Sensitivity and specificity were always 100%, except in the case of Salmonella spp., where three strains were not detected by our PCR protocols. The second objective of our work was to assess the detection limit of our real-time PCR protocols on artificially contaminated seafood products (raw shrimps, cooked shrimps, and raw mussels), purchased in public stores. Six different levels of contamination were assayed in four replicates for each matrix. The real-time PCR protocols enabled a better level of detection than the ISO methods, except for Salmonella in raw shrimps and for V.vulnificus in shrimps (raw and cooked). The estimated level of detection was between 1 and 47cfu/25g sample for the ISO norms and between 1 and 315cfu/25g sample for the real-time PCR protocols tailored in our work. The real-time \\{PCRs\\} developed in our work allowed for good selectivity, sensitivity, and specificity. The sensitivity on seafood products was estimated at a level of 100%, except for Salmonella (97%). In the spiking assays, the levels of detection were lower with the real-time PCR protocol than those obtained with the ISO method. This was not the case for V.vulnificus in raw and cooked shrimps and for Salmonella in raw shrimps. These real-time PCR protocols appear to be good alternative methods for surveillance of seafood products to ensure the absence of foodborne pathogens. One additional conclusion is that laboratories have to use enrichment media that are compatible with those recommended by ISO standards. This may facilitate the isolation of the pathogen if the real-time PCR protocol gives a suspect positive signal during the first step of the seafood analysis.

B. Taminiau; N. Korsak; C. Lemaire; V. Delcenserie; G. Daube

2014-01-01T23:59:59.000Z

318

A framework for simulation-based real-time whole building performance  

NLE Websites -- All DOE Office Websites (Extended Search)

A framework for simulation-based real-time whole building performance A framework for simulation-based real-time whole building performance assessment Title A framework for simulation-based real-time whole building performance assessment Publication Type Journal Article Refereed Designation Unknown LBNL Report Number 0360-1323 Year of Publication 2012 Authors Pang, Xiufeng, Michael Wetter, Prajesh Bhattacharya, and Philip Haves Journal Building and Environment Volume 54 Start Page 100 Pagination 100-108 Date Published 08/2012 ISSN 0360-1323 Keywords building controls virtual test bed, building performance, energy modeling, energyplus, real-time building simulation Abstract Most commercial buildings do not perform as well in practice as intended by the design and their performances often deteriorate over time. Reasons include faulty construction, malfunctioning equipment, incorrectly configured control systems and inappropriate operating procedures. One approach to addressing this problems is to compare the predictions of an energy simulation model of the building to the measured performance and analyze significant differences to infer the presence and location of faults. This paper presents a framework that allows a comparison of building actual performance and expected performance in real time. The realization of the framework utilized the EnergyPlus, the Building Controls Virtual Test Bed (BCVTB) and the Energy Management and Control System (EMCS) was developed. An EnergyPlus model that represents expected performance of a building runs in real time and reports the predicted building performance at each time step. The BCVTB is used as the software platform to acquire relevant inputs from the EMCS through a BACnet interface and send them to the EnergyPlus and to a database for archiving. A proof-of-concept demonstration is also presented.

319

Real-time tracking of highly articulated structures in the presence of noisy measurements  

E-Print Network (OSTI)

for several domains. In particu- lar there has been much interest in tracking human motion [9]. There are many) and can also be ap- plied to non-Gaussian statistics using a simple but power- ful trick. The resulting(N) algorithm and give timings which are essentially real-time, but make use of a powerful (but comparatively

Martin, Ralph R.

320

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

E-Print Network (OSTI)

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

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Real-Time Frame-Dependent Watermarking in MPEG-2 Video  

E-Print Network (OSTI)

Real-Time Frame-Dependent Watermarking in MPEG-2 Video Chun-Shien Lu ?, Jan-Ru Chen y, and Kuo data. In particular, video watermarking deals with several issues that are unique to various types-time detection, bit-rate control, and resistance to watermark estimation attacks, will be addressed. Since video

Chen, Sheng-Wei

322

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

E-Print Network (OSTI)

This thesis reports on recent advances made in real-time intruder detection for an intrusion system developed at Texas A&M University that utilizes a phase-sensitive optical time-domain reflectometer. The system uses light pulses from a highly...

Snider, William Timothy

2009-09-30T23:59:59.000Z

323

Database Security Issues for RealTime Electronic Commerce Systems Sang H. Son  

E-Print Network (OSTI)

Science University of Virginia Charlottesville, VA 22903, USA son@virginia.edu Abstract Data management and transaction processing are essential in supporting advanced time­critical appli­ cations. In many for advanced data management functionalities in real­ time systems poses intellectual and engineering

Son, Sang H.

324

Integrating Preemption Threshold Scheduling and Dynamic Voltage Scaling for Energy Efficient Real-Time  

E-Print Network (OSTI)

scheduling (PTS) enables designing scalable real-time systems. PTS not only decreases the run-time overhead by the Earliest Dead- line First (EDF) policy. We present an algorithm to compute threshold preemption levels- tion is an important aspect of embedded systems design. Generally speaking, the pro- cessor consumes

Gupta, Rajesh

325

Utility Accrual Real-Time Scheduling with Probabilistically Assured Timeliness Performance  

E-Print Network (OSTI)

is a generalization of the classical dead- line constraint, specifies the utility of completing an ap- plicationUtility Accrual Real-Time Scheduling with Probabilistically Assured Timeliness Performance Peng Li Jensen The MITRE Corporation Bedford, MA 01730, USA jensen@mitre.org Abstract We present time/utility

Ravindran, Binoy

326

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

E-Print Network (OSTI)

REAL-TIME, WEB BASED ENERGY MONITORING SYSTEM FOR A SOLAR ACADEMIC BUILDING John H. Scofield-time data on the world-wide-web from 14 sensors that monitor various aspects of energy flows to and from Field Station incorporates passive solar cooling and active solar heating, maximizes ergonomic

Scofield, John H.

327

EDF Option for Scheduling Real-Time Jobs in Energy Harvesting Systems  

E-Print Network (OSTI)

EDF Option for Scheduling Real-Time Jobs in Energy Harvesting Systems Maryline CHETTO IRCCy of devising algorithms for scheduling time critical jobs on a single processor computing system with no energy approach for scheduling independent jobs preemptively when there is no energy limitation and no processing

Boyer, Edmond

328

Memory Resilient Gain-scheduled State-Feedback Control of Uncertain LTI/LPV Systems with Time-Varying Delays  

E-Print Network (OSTI)

The stabilization of uncertain LTI/LPV time delay systems with time varying delays by state-feedback controllers is addressed. At the difference of other works in the literature, the proposed approach allows for the synthesis of resilient controllers with respect to uncertainties on the implemented delay. It is emphasized that such controllers unify memoryless and exact-memory controllers usually considered in the literature. The solutions to the stability and stabilization problems are expressed in terms of LMIs which allow to check the stability of the closed-loop system for a given bound on the knowledge error and even optimize the uncertainty radius under some performance constraints; in this paper, the $\\mathcal{H}_\\infty$ performance measure is considered. The interest of the approach is finally illustrated through several examples.

Briat, Corentin; Lafay, Jean-Franois; 10.1016/j.sysconle.2010.06.004

2012-01-01T23:59:59.000Z

329

DOE REAL-TIME SEISMIC MONITORING AT ENHANCED GEOTHERMAL SYSTEM SITES | Open  

Open Energy Info (EERE)

REAL-TIME SEISMIC MONITORING AT ENHANCED GEOTHERMAL SYSTEM SITES REAL-TIME SEISMIC MONITORING AT ENHANCED GEOTHERMAL SYSTEM SITES Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: DOE REAL-TIME SEISMIC MONITORING AT ENHANCED GEOTHERMAL SYSTEM SITES Details Activities (6) Areas (6) Regions (0) Abstract: Lawrence Berkeley National Laboratory (LBNL) at the direction of the United States Department of Energy (DOE) Geothermal Technologies EGS Program is installing, operating, and/or interfacing seismic arrays at multiple Enhanced Geothermal Systems (EGS) sites. The overall goal is to gather high resolution seismicity data before, during and after stimulation activities at the EGS projects. This will include both surface and borehole deployments (as necessary in available boreholes) to provide high quality

330

Geek-Up[09.03.10] -- Innovative Silicon Wafers, Real-Time Power Traders and  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

09.03.10] -- Innovative Silicon Wafers, Real-Time Power 09.03.10] -- Innovative Silicon Wafers, Real-Time Power Traders and Petascale & Exascale Supercomputers Geek-Up[09.03.10] -- Innovative Silicon Wafers, Real-Time Power Traders and Petascale & Exascale Supercomputers September 3, 2010 - 12:38pm Addthis A silver wafer reflects the face of NREL research scientist Hao-Chih Yuan, before the wafer is washed with a mix of acids. The acids etch holes, absorbing light and turning the wafer black. | Photo Credit: Dennis Schroeder, NREL A silver wafer reflects the face of NREL research scientist Hao-Chih Yuan, before the wafer is washed with a mix of acids. The acids etch holes, absorbing light and turning the wafer black. | Photo Credit: Dennis Schroeder, NREL Elizabeth Meckes Elizabeth Meckes Director of User Experience & Digital Technologies, Office of Public

331

Geek-Up[09.03.10] -- Innovative Silicon Wafers, Real-Time Power Traders and  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Geek-Up[09.03.10] -- Innovative Silicon Wafers, Real-Time Power Geek-Up[09.03.10] -- Innovative Silicon Wafers, Real-Time Power Traders and Petascale & Exascale Supercomputers Geek-Up[09.03.10] -- Innovative Silicon Wafers, Real-Time Power Traders and Petascale & Exascale Supercomputers September 3, 2010 - 12:38pm Addthis A silver wafer reflects the face of NREL research scientist Hao-Chih Yuan, before the wafer is washed with a mix of acids. The acids etch holes, absorbing light and turning the wafer black. | Photo Credit: Dennis Schroeder, NREL A silver wafer reflects the face of NREL research scientist Hao-Chih Yuan, before the wafer is washed with a mix of acids. The acids etch holes, absorbing light and turning the wafer black. | Photo Credit: Dennis Schroeder, NREL Elizabeth Meckes Elizabeth Meckes Director of User Experience & Digital Technologies, Office of Public

332

ME EET Seminar: Real-time Predictive Control: From Automotive Systems to  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-time Predictive Control: From Automotive Systems to Real-time Predictive Control: From Automotive Systems to Energy Efficient Buildings Speaker(s): Francesco Borrelli Date: February 10, 2010 - 12:00pm Location: 90-3122 Hybrid systems are heterogeneous systems that exhibit both continuous and discrete dynamics. Over the last eight years we have focused on the development of systematic, real-time, predictive controller synthesis techniques for hybrid systems with constraints. In this talk I will first summarize our theoretical efforts starting from constrained optimal control design for hybrid systems with constraints. Then, I will show how these results can be used in order to develop a theory for distributed predictive control for large-scale systems. The second part of the talk presents a range of applications where the proposed techniques were used with great

333

Improved process control through real-time measurement of mineral content  

SciTech Connect

In a highly collaborative research and development project with mining and university partners, sensors and data-analysis tools are being developed for rock-mass characterization and real-time measurement of mineral content. Determining mineralogy prior to mucking in an open-pit mine is important for routing the material to the appropriate processing stream. A possible alternative to lab assay of dust and cuttings obtained from drill holes is continuous on-line sampling and real-time x-ray fluorescence (XRF) spectroscopy. Results presented demonstrate that statistical analyses combined with XRF data can be employed to identify minerals and, possibly, different rock types. The objective is to create a detailed three-dimensional mineralogical map in real time that would improve downstream process efficiency.

Turler, Daniel; Karaca, Murat; Davis, William B.; Giauque, Robert D.; Hopkins, Deborah

2001-11-02T23:59:59.000Z

334

Real-time MSE measurements for current profile control on KSTAR  

SciTech Connect

To step up from current day fusion experiments to power producing fusion reactors, it is necessary to control long pulse, burning plasmas. Stability and confinement properties of tokamak fusion reactors are determined by the current or q profile. In order to control the q profile, it is necessary to measure it in real-time. A real-time motional Stark effect diagnostic is being developed at Korean Superconducting Tokamak for Advanced Research for this purpose. This paper focuses on 3 topics important for real-time measurements: minimize the use of ad hoc parameters, minimize external influences and a robust and fast analysis algorithm. Specifically, we have looked into extracting the retardance of the photo-elastic modulators from the signal itself, minimizing the influence of overlapping beam spectra by optimizing the optical filter design and a multi-channel, multiharmonic phase locking algorithm.

De Bock, M. F. M.; Aussems, D.; Huijgen, R.; Scheffer, M. [Eindhoven University of Technology, Eindhoven (Netherlands); Chung, J. [National Fusion Research Institute, Daejeon (Korea, Republic of)

2012-10-15T23:59:59.000Z

335

Real time voltage control using emergency demand response in distribution system by integrating advanced metering infrastructure  

Science Journals Connector (OSTI)

In this paper an analytical study is reported to demonstrate the effects of demand response on distribution network voltages profile. Also a new approach for real time voltage control is proposed which uses emergency demand response program aiming at maintaining voltage profile in an acceptable range with minimum cost. This approach will be active in emergency conditions where in real time the voltages in some nodes leave their permissible ranges. These emergency conditions are Distributed Generation (DG) units and lines outage and unpredictable demand and renewable generations' fluctuations. The proposed approach does not need the load and renewable generation forecast data to regulate voltage. To verify the effectiveness and robustness of the proposed control scheme the proposed voltage control scheme is tested on a typical distribution network. The simulation results show the effectiveness and capability of the proposed real time voltage control model to maintain smart distribution network voltage in specified ranges in both normal and emergency conditions.

Alireza Zakariazadeh; Shahram Jadid

2014-01-01T23:59:59.000Z

336

Evaluation of flooding schemes for real-time video transmission in \\{VANETs\\}  

Science Journals Connector (OSTI)

Abstract Long-distance real-time video flooding over Vehicular Ad-hoc Networks (VANETs) is challenging due to the dynamic nature of vehicular networks. Real-time video transmission has high requirements in terms of bandwidth and delay, while \\{VANETs\\} are characterized by very limited radio resources and high mobility. Our objective is to compare ten different flooding schemes specially designed for this task and select the best in terms of packet arrival ratio and Peak Signal-to-Noise Ratio (PSNR). Additionally, we propose Automatic Copies Distance Based (ACDB), an improved flooding scheme, to cope with variable vehicle density situations. Furthermore, to ensure a good behavior under all types of circumstances, we also study the impact of Global Positioning System (GPS) drift on these schemes. Simulation results show that long-distance real-time video flooding transmission is feasible under certain vehicle density conditions and the quality achieved is enough to allow using such solutions in future applications.

Alvaro Torres; Carlos T. Calafate; Juan-Carlos Cano; Pietro Manzoni; Yusheng Ji

2015-01-01T23:59:59.000Z

337

The nNJL model with a fractional Lorentzian regulator in the real time formalism  

E-Print Network (OSTI)

In this article we study the finite temperature and chemical potential effects in a nonlocal Nambu-Jona-Lasinio (nNJL) model in the real time formalism. We make the usual Wick rotation to get from imaginary to real time formalism. In doing so, we need to define our regulator in the complex plane q^2. This deffinition will be crucial in our later analysis. We study the poles in the propagator of this model and conclude that only some of them are of interst to us. Once we have a well defined model in real time formalism, we look at the chiral condensate to find the temperature at which chiral symmetry restoration will occur. We find a second order phase transition that turns to a first order one for high enough values of the chemical potential.

M. Loewe; F. Marquez; C. Villavicencio

2013-07-25T23:59:59.000Z

338

Real-Time Power Control of Data Centers for Providing Regulation Service  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-Time Power Control of Data Centers for Providing Regulation Service Real-Time Power Control of Data Centers for Providing Regulation Service Speaker(s): Ayse K. Coskun Date: November 19, 2013 - 12:00pm - 1:00pm Location: 90-3122 Seminar Host/Point of Contact: Girish Ghatikar Today's US power markets offer new opportunities for the energy consumers to reduce their energy costs by first promising an average consumption rate for the next hour and then by following a regulation signal broadcast by the independent system operators (ISOs), who need to match supply and demand in real time in presence of volatile and intermittent renewable energy generation. This talk proposes a management framework for the data centers to participate in the power markets. First, I will discuss how to solve the data center "regulation service (RS)" optimization problem to

339

A system for EPID-based real-time treatment delivery verification during dynamic IMRT treatment  

SciTech Connect

Purpose: To design and develop a real-time electronic portal imaging device (EPID)-based delivery verification system for dynamic intensity modulated radiation therapy (IMRT) which enables detection of gross treatment delivery errors before delivery of substantial radiation to the patient.Methods: The system utilizes a comprehensive physics-based model to generate a series of predicted transit EPID image frames as a reference dataset and compares these to measured EPID frames acquired during treatment. The two datasets are using MLC aperture comparison and cumulative signal checking techniques. The system operation in real-time was simulated offline using previously acquired images for 19 IMRT patient deliveries with both frame-by-frame comparison and cumulative frame comparison. Simulated error case studies were used to demonstrate the system sensitivity and performance.Results: The accuracy of the synchronization method was shown to agree within two control points which corresponds to approximately ?1% of the total MU to be delivered for dynamic IMRT. The system achieved mean real-time gamma results for frame-by-frame analysis of 86.6% and 89.0% for 3%, 3 mm and 4%, 4 mm criteria, respectively, and 97.9% and 98.6% for cumulative gamma analysis. The system can detect a 10% MU error using 3%, 3 mm criteria within approximately 10 s. The EPID-based real-time delivery verification system successfully detected simulated gross errors introduced into patient plan deliveries in near real-time (within 0.1 s).Conclusions: A real-time radiation delivery verification system for dynamic IMRT has been demonstrated that is designed to prevent major mistreatments in modern radiation therapy.

Fuangrod, Todsaporn [Faculty of Engineering and Built Environment, School of Electrical Engineering and Computer Science, the University of Newcastle, NSW 2308 (Australia)] [Faculty of Engineering and Built Environment, School of Electrical Engineering and Computer Science, the University of Newcastle, NSW 2308 (Australia); Woodruff, Henry C.; OConnor, Daryl J. [Faculty of Science and IT, School of Mathematical and Physical Sciences, the University of Newcastle, NSW 2308 (Australia)] [Faculty of Science and IT, School of Mathematical and Physical Sciences, the University of Newcastle, NSW 2308 (Australia); Uytven, Eric van; McCurdy, Boyd M. C. [Division of Medical Physics, CancerCare Manitoba, 675 McDermot Avenue, Winnipeg, Manitoba R3E 0V9 (Canada) [Division of Medical Physics, CancerCare Manitoba, 675 McDermot Avenue, Winnipeg, Manitoba R3E 0V9 (Canada); Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2 (Canada); Department of Radiology, University of Manitoba, Winnipeg, Manitoba R3T 2N2 (Canada); Kuncic, Zdenka [School of Physics, University of Sydney, Sydney, NSW 2006 (Australia)] [School of Physics, University of Sydney, Sydney, NSW 2006 (Australia); Greer, Peter B. [Faculty of Science and IT, School of Mathematical and Physical Sciences, the University of Newcastle, NSW 2308, Australia and Department of Radiation Oncology, Calvary Mater Newcastle Hospital, Locked Bag 7, Hunter region Mail Centre, Newcastle, NSW 2310 (Australia)] [Faculty of Science and IT, School of Mathematical and Physical Sciences, the University of Newcastle, NSW 2308, Australia and Department of Radiation Oncology, Calvary Mater Newcastle Hospital, Locked Bag 7, Hunter region Mail Centre, Newcastle, NSW 2310 (Australia)

2013-09-15T23:59:59.000Z

340

An SRP-based energy-efficient scheduling algorithm for dependent real-time tasks  

Science Journals Connector (OSTI)

In this paper, we are interested in the energy-efficient scheduling of dependent real-time tasks which may access multiunit resources. Based on the well-known stack resource policy (SRP), we propose the blocking-time stealing (BTS) algorithm to schedule dynamic-priority and fixed-priority tasks on a non-ideal dynamic voltage scaling (DVS) processor. Under the BTS algorithm, tasks are scheduled to be executed at proper processor speeds which are determined according to the sufficient schedulability conditions of the earliest deadline first (EDF) and the rate monotonic (RM) algorithms. The BTS algorithm measures dynamically the slack between the actual blocking time of a task and its estimated worst-case blocking time. The slack is then exploited to lower the processor speed guaranteeing that the feasibility of tasks is not affected. As a result, the energy consumption can be reduced while satisfying the timing constraints of real-time tasks.

Jun Wu; Jun-Xing Wu

2014-01-01T23:59:59.000Z

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While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

California ISO Real-Time Voltage Security Assessment (VSA) Summary Report  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-Time Real-Time Voltage Security Assessment (VSA) Summary Report Prepared For: California Energy Commission Public Interest Energy Research Program Prepared By: Lawrence Berkeley National Laboratory Consortium for Electric Reliability Technology Solutions APPENDIX B October 2008 CEC-500-2008-049-APB Prepared By: Lawrence Berkeley National Laboratory Joe Eto, Manu Parashar, Bernard Lesieutre, and Nancy Jo Lewis Berkeley, CA Administered by University of California, California Institute for Energy and Environment under 500-99-013, BOA-138. Jim Cole, Larry Miller Oakland, California 94612 Commission Contract No. 500-02-004 Commission Work Authorization No: MR-036 Prepared For: Public Interest Energy Research (PIER) California Energy Commission

342

Real-Time Building Energy Modeling, fault Detection and Diagnostic for a DoD Building  

E-Print Network (OSTI)

ME 4343 HVAC Design Real-Time Building Energy Modeling and Fault Detection and Diagnostics for a DoD Building Bing Dong1, Zheng ONeill2 1 University of Texas, San Antonio, TX, USA 2 University of Alabama, AL, USA The work was done at the United... distributed Direct Digital Control System (DDC) 4 7114 7113 ESL-KT-13-12-18 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 Technology Approaches 5 Core Layer: BIM-based Database BIM to BEM Real-time Data Acquisition...

Dong, B.

2013-01-01T23:59:59.000Z

343

Autonomous global sky monitoring with real-time robotic follow-up  

SciTech Connect

We discuss the development of prototypes for a global grid of advanced 'thinking' sky sentinels and robotic follow-up telescopes that observe the full night sky to provide real-time monitoring of the night sky by autonomously recognizing anomalous behavior, selecting targets for detailed investigation, and making real-time anomaly detection to enable rapid recognition and a swift response to transients as they emerge. This T3 global EO grid avoids the limitations imposed by geography and weather to provide persistent monitoring of the night sky.

Vestrand, W Thomas [Los Alamos National Laboratory; Davis, H [Los Alamos National Laboratory; Wren, J [Los Alamos National Laboratory; Wozniak, P [Los Alamos National Laboratory; Norman, B [Los Alamos National Laboratory; White, R [Los Alamos National Laboratory; Bloch, J [Los Alamos National Laboratory; Fenimore, E [Los Alamos National Laboratory; Hodge, Barry [AFRL; Jah, Moriba [AFRL; Rast, Richard [AFRL

2008-01-01T23:59:59.000Z

344

Development and application of a real-time recovery boiler expert system  

SciTech Connect

The recovery boiler, although often a bottleneck, is an integral part of any kraft mill. Maximizing production while maintaining safe operation are primary concerns. Statistical process control (SPC) and simulation are powerful tools for addressing these problems. SPC is useful for maintaining stable operation, whereas off-line simulation has proven useful to evaluate various operating strategies. Real-time integration of these methods has also been proposed. This paper describes integration of a millwide information system, an expert system shell, SPC, and real-time process simulation into a prototype advisory system for recovery boiler operation.

Smith, D.B.; Damon, R.A. (James River Corp., Camas Technical Center, Camas, WA (US)); Edwards, L.L. (Univ. of Idaho, Chemical Engineering, Buchannon Engineering Lab., Moscow, ID (US))

1991-11-01T23:59:59.000Z

345

Real-time, single-step bioassay using nanoplasmonic resonator with ultra-high sensitivity  

DOE Patents (OSTI)

A nanoplasmonic resonator (NPR) comprising a metallic nanodisk with alternating shielding layer(s), having a tagged biomolecule conjugated or tethered to the surface of the nanoplasmonic resonator for highly sensitive measurement of enzymatic activity. NPRs enhance Raman signals in a highly reproducible manner, enabling fast detection of protease and enzyme activity, such as Prostate Specific Antigen (paPSA), in real-time, at picomolar sensitivity levels. Experiments on extracellular fluid (ECF) from paPSA-positive cells demonstrate specific detection in a complex bio-fluid background in real-time single-step detection in very small sample volumes.

Zhang, Xiang; Ellman, Jonathan A; Chen, Fanqing Frank; Su, Kai-Hang; Wei, Qi-Huo; Sun, Cheng

2014-04-01T23:59:59.000Z

346

Filter loading corrections for real-time aethalometer measurements of fresh  

NLE Websites -- All DOE Office Websites (Extended Search)

Filter loading corrections for real-time aethalometer measurements of fresh Filter loading corrections for real-time aethalometer measurements of fresh diesel soot. (2007) Title Filter loading corrections for real-time aethalometer measurements of fresh diesel soot. (2007) Publication Type Journal Article Year of Publication 2007 Authors Jimenez, Jorge, Candis S. Claiborn, Timothy Larson, Thomas W. Kirchstetter, and Lara A. Gundel Journal Journal of Air and Waste Management Association Volume 57 Issue 7 Pagination 868-873 Abstract In this study, a correction was developed for the aethalometer to measure real-time black carbon (BC) concentrations in an environment dominated by fresh diesel soot. The relationship between the actual mass-specific absorption coefficient for BC and the BC-dependent attenuation coefficients was determined from experiments conducted in a diesel exposure chamber that provided constant concentrations of fine particulate matter (PM; PM(2.5); PM < 2.5 microm in aerodynamic diameter) from diesel exhaust. The aethalometer reported BC concentrations decreasing with time from 48.1 to 31.5 microg m(-3) when exposed to constant PM(2.5) concentrations of 55 +/- 1 microg m(-3) and b(scat) = 95 +/- 3 Mm(-1) from diesel exhaust. This apparent decrease in reported light-absorbing PM concentration was used to derive a correction K(ATN) for loading of strong light-absorbing particles onto or into the aethalometer filter tape, which was a function of attenuation of light at 880 nm by the embedded particles

347

Advanced Kalman Filter for Real-Time Responsiveness in Complex Systems  

SciTech Connect

Complex engineering systems pose fundamental challenges in real-time operations and control because they are highly dynamic systems consisting of a large number of elements with severe nonlinearities and discontinuities. Todays tools for real-time complex system operations are mostly based on steady state models, unable to capture the dynamic nature and too slow to prevent system failures. We developed advanced Kalman filtering techniques and the formulation of dynamic state estimation using Kalman filtering techniques to capture complex system dynamics in aiding real-time operations and control. In this work, we looked at complex system issues including severe nonlinearity of system equations, discontinuities caused by system controls and network switches, sparse measurements in space and time, and real-time requirements of power grid operations. We sought to bridge the disciplinary boundaries between Computer Science and Power Systems Engineering, by introducing methods that leverage both existing and new techniques. While our methods were developed in the context of electrical power systems, they should generalize to other large-scale scientific and engineering applications.

Welch, Gregory Francis [UNC-Chapel Hill/University of Central Florida] [UNC-Chapel Hill/University of Central Florida; Zhang, Jinghe [UNC-Chapel Hill/Virginia Tech] [UNC-Chapel Hill/Virginia Tech

2014-06-10T23:59:59.000Z

348

Acoustic Performance of an Installed Real-Time Three-Dimensional Audio System  

Science Journals Connector (OSTI)

The Exterior Effects Room (EER) located at the NASA Langley Research Center is a facility built for psychoacoustic studies of aircraft community noise. Recently the EER was significantly upgraded to allow for simulation of aircraft flyovers in a three-dimensional audio and visual environment. The upgrade included installation of 27 satellite and 4 subwoofer loudspeakers that are driven by a real-time audio server. The audio server employs an implementation of the Vector Base Amplitude Panning (VBAP) method to position virtual sources at arbitrary azimuth and elevation angles in the EER. Real-time application of filters time delays and gains are required to compensate for installation effects including those associated with the irregular room geometry colorization due to varying loudspeaker installations and crossover filtering. The authors previously showed [J. Acoust. Soc. Am. 127 1969 (2010)] that color compensation and crossover filtering could be achieved for satellite and subwoofer loudspeakers. However the resulting FIR filters were too long (32 768 taps) to implement in real-time. The focus of this work is on development of reduced-length surrogate IIR filters and on measurement of the acoustic performance of the installed real-time system.

Kenneth Faller II; Stephen A. Rizzi; Noah Schiller; Randolph Cabell; Jacob Klos; William L. Chapin; Aric R. Aumann

2012-01-01T23:59:59.000Z

349

Acoustic performance of an installed real?time three?dimensional audio system.  

Science Journals Connector (OSTI)

The Exterior Effects Room (EER) located at the NASA Langley Research Center is a facility built for psychoacoustic studies of aircraft community noise. Recently the EER was significantly upgraded to allow for simulation of aircraft flyovers in a 3?D audio and visual environment. The upgrade included installation of 27 satellite and 4 subwooferloudspeakers that are driven by a real?time audio server. The audio server employs an implementation of the vector base amplitude panning method to position virtual sources at arbitrary azimuth and elevation angles in the EER. Real?time application of filters time delays and gains are required to compensate for installation effects including those associated with the irregular room geometry colorization due to varying loudspeaker installations and crossover filtering. The authors previously showed [J. Acoust. Soc. Am. 127 1969 (2010)] that color compensation and crossover filtering could be achieved for satellite and subwooferloudspeakers. However the resulting FIR filters were too long (32?768 taps) to implement in real?time. The focus of this work is on the development of reduced?length surrogate IIR filters and on the measurement of the acoustic performance of the installed real?time system.?

Kenneth J. Faller II; Stephen A. Rizzi; Noah Schiller; Randolph H. Cabell; Jacob Klos; William L. Chapin; Fahri Surucu

2010-01-01T23:59:59.000Z

350

Wetland Flow and Salinity Budgets and Elements of a Decision Support System toward Implementation of Real-Time Seasonal Wetland Salinity Management  

E-Print Network (OSTI)

real-?time water quality management. Environmental real-?time water quality management. Environmental Management of Water Quality in the San Joaquin River. California Environmental

Quinn, N.W.T.

2013-01-01T23:59:59.000Z

351

Performance Evaluation of Real Time Formaldehyde Monitors: PTR-MS and  

NLE Websites -- All DOE Office Websites (Extended Search)

Performance Evaluation of Real Time Formaldehyde Monitors: PTR-MS and Performance Evaluation of Real Time Formaldehyde Monitors: PTR-MS and Interscan 4160-500B Portable Monitor Title Performance Evaluation of Real Time Formaldehyde Monitors: PTR-MS and Interscan 4160-500B Portable Monitor Publication Type Report LBNL Report Number LBNL-6357E Year of Publication 2013 Authors Sidheswaran, Meera A., Sebastian Cohn, Douglas P. Sullivan, and Lara A. Gundel Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract Executive Summary Exposure to volatile organic compounds (VOCs) in buildings is a health hazard. Of particular concern is formaldehyde, a ubiquitous carcinogen emitted from furnishings and adhesives in homes and offices. Practitioners and researchers in the area of building performance are very interested in measuring formaldehyde in homes, and they need instrumentation that responds immediately. Current formaldehyde monitoring techniques are hampered by interfering substances in the sample airstream, compromising measurement accuracy and leading to drift. Many experts are now using a tabletop real-time formaldehyde instrument, the Interscan 4160-2, that LBNL researchers have found to be very sensitive to water vapor and low levels of volatile organic compounds (VOCs). Unless ways are found to remove these interferences, relying on the Interscan's readings in buildings will lead to the wrong conclusions about formaldehyde levels and could trigger subsequent unnecessary expense and/or inappropriate responses.

352

Modeling FullEnvelope Aerodynamics of Small UAVs in RealTime Prof. Michael Selig  

E-Print Network (OSTI)

D M E S S Modeling FullEnvelope Aerodynamics of Small UAVs in RealTime Prof. Michael Selig Applied Aerodynamics Group and Subsonic Aerodynamics Research Lab Department of Aerospace Engineering will focus on the development of a full six degreeoffreedom aerodynamics modeling environment for small UAVs

Barthelat, Francois

353

Uncertainty-based Sensor Fusion of Range Data for Real-time Digital Elevation Mapping (RTDEM)  

E-Print Network (OSTI)

of the environment that allows fusion of sensory range data of various types and fidelities while explicitly takingUncertainty-based Sensor Fusion of Range Data for Real-time Digital Elevation Mapping (RTDEM) Lars classes of environment modeling. Index Terms-- Terrain estimation, sensor fusion, 2.5D ele- vation mapping

Murray, Richard M.

354

Figure 1: ATA 42 antenna array at Hat Creek ********ADAPTIVE REAL TIME IMAGING FOR RADIO ASTRONOMY*******  

E-Print Network (OSTI)

Figure 1: ATA 42 antenna array at Hat Creek ********ADAPTIVE REAL TIME IMAGING FOR RADIO ASTRONOMY --------------------------­ · Astronomers primarily interested in astronomy. ­ Data reduction preoccupies radio astronomy specialists,f,p Bandpass( )f PolCal( )f,p Gains( )s,f,p S Beam Imager Astronomy Solver I2 ( ) )^(^, 2sVpfV - å ¹kj X Solver

Militzer, Burkhard

355

Real-Time Visualization of Hydroelectric Project Based on Multilayer Object-Oriented Graphics Model  

Science Journals Connector (OSTI)

The objective of this paper is to realize the real-time visualization of hydroelectric project. Based on the object-oriented graphics modeling technology, we construct the three kinds of graphics models sorted by hierarchy---unit model, process model, ... Keywords: visualization, hydroelectric project, simulation, object-oriented graphics modeling technology, interaction

Yuan Huang; Xian-Jia Wang; Zhi-Xiu Cheng

2008-08-01T23:59:59.000Z

356

Real time acquisition and PC to PC wireless transmission of human carotid pulse waveform  

Science Journals Connector (OSTI)

Carotid pulse is an established physiological parameter used to deduce cardiac information. Technological advances allow non-invasive measurement of carotid waveform, but involve complex electronics. Simple and relatively inexpensive method is devised ... Keywords: Carotid pulse, Digital filters, Non-invasive, Piezo-electric sensor, Real time, Wireless

Dipali Bansal; Munna Khan; Ashok K. Salhan

2009-10-01T23:59:59.000Z

357

Observer-based control of a tethered wing wind power system: indoor real-time experiment  

E-Print Network (OSTI)

Observer-based control of a tethered wing wind power system: indoor real-time experiment Ahmad, a novel wind power system based on a tethered wing is presented. An observer-based control strategy WindPower, Joby energy [8] or Makani Power [9], is composed of one or several airborne wind turbines

Paris-Sud XI, Université de

358

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

E-Print Network (OSTI)

Real-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation Lingwen Gan is an essential tool for handling the uncertainties associated with the increasing penetration of renewable aggregate) to compensate for the random fluctuations in renewable generation. In this paper, we propose

Low, Steven H.

359

Volatile emission by contest losers revealed by real-time chemical analysis  

Science Journals Connector (OSTI)

...losers revealed by real-time chemical analysis Marlene Goubault Tim...interactions often involve chemical exchange but simultaneous evaluation...individuals. We explore the chemical behaviour of the bethylid wasp...APCI source was mounted on a Platform II mass spectrometer (Waters...

2006-01-01T23:59:59.000Z

360

Multi-touchless: Real-Time Fingertip Detection and Tracking Using Geodesic Maxima  

E-Print Network (OSTI)

Multi-touchless: Real-Time Fingertip Detection and Tracking Using Geodesic Maxima Philip Krejov the geodesic maxima of the surface. Fingertips are then selected from these maxima using a simplified model that uses geodesic maxima instead of visual appearance which is both efficient to compute and robust to both

Bowden, Richard

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

arXiv:hepex/9905010 Towards Low-Threshold, Real-Time Solar Neutrino  

E-Print Network (OSTI)

of qualitatively new experimental tools. According to the SSM the solar neutrino ux is dominated by the low energy energy resolution. The main obstacle in achieving these goals comes from the formidable backgrounds fromarXiv:hep­ex/9905010 v1 6 May 1999 Towards Low-Threshold, Real-Time Solar Neutrino Detectors G

Gratta, Giorgio

362

Compositionality in Real-Time Model Checking Jasper Berendsen and Frits Vaandrager  

E-Print Network (OSTI)

Compositionality in Real-Time Model Checking Jasper Berendsen and Frits Vaandrager Radboud Universiteit Nijmegen Laquso Lunch Colloquium, 8 november 2007 Jasper Berendsen and Vaandrager Compositionality Modules, etc, CCS, I/O automata, ACP, mCRL2, etc Lamport: "In reality there are only states" Jasper

Vaandrager, Frits

363

Design and implementation of a universal controller working under the MCX-16 real-time kernel  

E-Print Network (OSTI)

In this thesis, the design of a universal controller is introduced. The controller has a 16-bit processor, four A/D channels and two D/A channels. It can run a control program up to 64K byte long. The real-time kernel, MCX-16, is selected...

Xue, Yuannong

2012-06-07T23:59:59.000Z

364

The Design and Performance of the jRate Real-Time Java Implementation  

Science Journals Connector (OSTI)

Over 90 percent of all microprocessors are now used for real-time and embedded applications. Since the behavior of these applications is often constrained by the physical world, it is important to devise higher-level programming languages and middleware ...

Angelo Corsaro; Douglas C. Schmidt

2002-10-01T23:59:59.000Z

365

Improving a robotics framework with real-time and high-performance features  

Science Journals Connector (OSTI)

Middleware has a key role in modern and object-oriented robotics frameworks, which aim at developing reusable, scalable and maintainable systems using different platforms and programming languages. However, complex robotics software falls into the category ... Keywords: data distribution service, middleware, performance, real-time, robotics

Jess Martnez; Adrin Romero-Garcs; Luis Manso; Pablo Bustos

2010-11-01T23:59:59.000Z

366

Real-Time PCR in Clinical Microbiology: Applications for Routine Laboratory Testing  

Science Journals Connector (OSTI)

...place, quality control monitoring is...to justify the capital investment that...addition to the cost for equipment...Instrumentation The cost for reagents...and negative controls) may vary according...Significant capital outlay for purchase...Frequently, the cost for real-time...

M. J. Espy; J. R. Uhl; L. M. Sloan; S. P. Buckwalter; M. F. Jones; E. A. Vetter; J. D. C. Yao; N. L. Wengenack; J. E. Rosenblatt; F. R. Cockerill III; T. F. Smith

2006-01-01T23:59:59.000Z

367

Hybrid Face Recognition Based on Real-Time Multi-camera Stereo-Matching  

Science Journals Connector (OSTI)

Multi-camera systems and GPU-based stereo-matching methods allow for a real-time 3d reconstruction of faces. We use the data generated by such a 3d reconstruction for a hybrid face recognition system based on ...

J. Hensler; K. Denker; M. Franz; G. Umlauf

2011-01-01T23:59:59.000Z

368

Modeling Massive Amount of Experimental Data with Large Random Matrices in a Real-Time  

E-Print Network (OSTI)

of the (random) data matrix. In [1], the idea of modeling Big Data with (large) random matrices was proposed in the framework of Big Data. These series works [1]­[3] clearly articulated the ideas and treated the necessary1 Modeling Massive Amount of Experimental Data with Large Random Matrices in a Real-Time UWB

Qiu, Robert Caiming

369

Energy-Efficient Soft Real-Time CPU Scheduling for Mobile Multimedia Systems  

E-Print Network (OSTI)

, Urbana, IL 61801, USA {wyuan1, klara}@cs.uiuc.edu ABSTRACT This paper presents GRACE-OS, an energy modes, trading off performance for energy. For example, mobile processors on the market todayEnergy-Efficient Soft Real-Time CPU Scheduling for Mobile Multimedia Systems Wanghong Yuan, Klara

Adve, Sarita

370

EnergyEfficient Soft RealTime CPU Scheduling for Mobile Multimedia Systems  

E-Print Network (OSTI)

, Urbana, IL 61801, USA {wyuan1, klara}@cs.uiuc.edu ABSTRACT This paper presents GRACE­OS, an energy modes, trading o# performance for energy. For example, mobile processors on the market todayEnergy­Efficient Soft Real­Time CPU Scheduling for Mobile Multimedia Systems Wanghong Yuan, Klara

Nahrstedt, Klara

371

Complete Automation of Future Grid for Optimal Real-Time Distribution of Renewables  

E-Print Network (OSTI)

Complete Automation of Future Grid for Optimal Real-Time Distribution of Renewables Kiyoshi integrates tie-set graph theory with an intelligent agent system, is presented to distribute renewable energy and renewable generation is highly variable and unpredictable. Simulation results on a one hundred-node network

Loudon, Catherine

372

Local Flaps: A Real-Time Finite Element Based Solution to the Plastic Surgery  

E-Print Network (OSTI)

Local Flaps: A Real-Time Finite Element Based Solution to the Plastic Surgery Defect Puzzle fundamental challenges in plastic surgery is the alter- ation of the geometry and topology of the skin for the patient after the procedure is completed. The plastic surgeon must look at the defect created

Liblit, Ben

373

Flow visualization of molten alloys using real-time neutron radiography  

E-Print Network (OSTI)

The objective of this research is to visualize the flow of molten alloys using real-time neutron radiography. Initial experiments were performed using solder (50% tin, 50% lead), with nickel tracer particles, heated in a furnace to its liquid state...

Bennett, Tami Norene

2012-06-07T23:59:59.000Z

374

The BEST Desktop Soft Real-Time Scheduler Scott A. Banachowski and Scott A. Brandt  

E-Print Network (OSTI)

The BEST Desktop Soft Real-Time Scheduler Scott A. Banachowski and Scott A. Brandt University of California, Santa Cruz E-mail: sbanacho,sbrandt¡ @cse.ucsc.edu Abstract Best-effort CPU scheduling- effort scheduler that handles CPU-intensive, I/O-intensive, and periodic SRT processes using a single

Miller, Ethan L.

375

The BEST Desktop Soft Real-Time Scheduler Scott A. Banachowski and Scott A. Brandt  

E-Print Network (OSTI)

results, i.e. priority boosts should be based on rate or deadline requirements. ¯ Increasing the loadThe BEST Desktop Soft Real-Time Scheduler Scott A. Banachowski and Scott A. Brandt University-effort scheduler that handles CPU-intensive, I/O-intensive, and periodic SRT processes using a single scheduling

Brandt, Scott A.

376

Real-Time Fluorogenic Reverse Transcription-PCR Assays for Detection of Bacteriophage MS2  

Science Journals Connector (OSTI)

...benchwork such as the engineering of particle collectors and fluidics systems, the development...real-time fluorogenic RT-PCR. Thick horizontal lines represent the threshold (t) for...Development and evaluation of a reflective solar disinfection pouch for treatment of drinking...

Kevin P. O'Connell; Jennifer R. Bucher; Patricia E. Anderson; Cheng J. Cao; Akbar S. Khan; Mark V. Gostomski; James J. Valdes

2006-01-01T23:59:59.000Z

377

Nonlinear control for systems with bounded inputs: Real-time embedded control applied to UAVs  

E-Print Network (OSTI)

Nonlinear control for systems with bounded inputs: Real-time embedded control applied to UAVs Farid) UAVs including conventional helicopters, four- rotors aircraft (Draganflyer) and several designs for small aerial vehicles, some restrictions and conditions specific to small UAVs have to be considered

Sontag, Eduardo

378

Flight Testing a Real Time Implementation of a UAV Path Planner Using Direct Collocation  

E-Print Network (OSTI)

Flight Testing a Real Time Implementation of a UAV Path Planner Using Direct Collocation Brian R by tracking a second UAV flying a predefined pattern. Finally, a method of commanding the observation vector ^s UAV sensor line of sight unit vector p Attraction point u UAV Control vector xt Target state

379

Tailoring real-time physical activity coaching systems: a literature survey and model  

Science Journals Connector (OSTI)

Technology mediated healthcare services designed to stimulate patients' self-efficacy are widely regarded as a promising paradigm to reduce the burden on the healthcare system. The promotion of healthy, active living is a topic of growing interest in ... Keywords: Personalization, Physical activity, Real time coaching, Tailoring, Telemedicine, eHealth

Harm Akker, Valerie M. Jones, Hermie J. Hermens

2014-12-01T23:59:59.000Z

380

Automatic Page Turning for Musicians via Real-Time Machine Listening  

E-Print Network (OSTI)

Automatic Page Turning for Musicians via Real-Time Machine Listening Andreas Arzt(1), Gerhard.qidenus.com) has developed an electro-mechanical device that actually turns the pages of books, music scores, etc. via two physical `fingers' (see Fig. 5, center). The device is operated by the musician via a foot

Widmer, Gerhard

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Energy Aware Non-preemptive Scheduling for Hard Real-Time Ravindra Jejurikar Rajesh K. Gupta  

E-Print Network (OSTI)

. . . . . . 11 4 Energy comparison of the static slowdown algorithms as a function of the task gain factor GfEnergy Aware Non-preemptive Scheduling for Hard Real-Time Systems Ravindra Jejurikar Rajesh K the ability to perform an energy-delay tradeoff in the computation and communications subsystems. Slowdown

Gupta, Rajesh

382

Real-time Optimal Trajectory Planning for Robotic Manipulators with Functional Redundancy  

E-Print Network (OSTI)

Real-time Optimal Trajectory Planning for Robotic Manipulators with Functional Redundancy P a small orientation error in the specifications of the end effector orien- tation for spray paint. Another example is the end effector of a robotic manipulator where an orientation error is allowed

Gravdahl, Jan Tommy

383

Optimizing the CORBA Component Model for High-performance and Real-time Applications  

E-Print Network (OSTI)

Science, Washington University Electrical and Computer Engineering Dept. St. Louis, MO 63130, USA 2000 Conference, IFIP/ACM, Palisades, New York, April 3-7, 2000. Abstract With the recent adoption recently, however, there were no CORBA ORBs that targeted high-performance and real-time systems, which

Schmidt, Douglas C.

384

Speci cation and Analysis of Real-Time Systems in Statecharts  

E-Print Network (OSTI)

,hshongg@salmosa.kaist.ac.kr Abstract Increased use of software in controlling safety-critical systems pro- duced an urgent need;1 Introduction Software controlling safety-critical real-time systems has already become a part of our society on software to control the amount of radiation to deliver for cancer therapy and to monitor various vital

385

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

E-Print Network (OSTI)

algorithms for the various types of motor drives considered for hybrid electric vehicles (HEVs algorithms for the various types of motor drives considered for hybrid electric vehicles (HEVs02FCC-30 A Library of SIMULINK Blocks for Real-Time Control of HEV Traction Drives John Chiasson1

Tolbert, Leon M.

386

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

E-Print Network (OSTI)

, the system operates in a so-called energy neutral mode by consuming only as much energy as harvested. The simulator enables to construct an optimal schedule for any task set, battery capacity and energy sourceA Simulation Tool for Real-time Systems using Environmental Energy Harvesting Maryline CHETTO

Paris-Sud XI, Université de

387

U-Boot Standalone Application (Exports) API 18349 Embedded Real-Time Systems  

E-Print Network (OSTI)

U-Boot Standalone Application (Exports) API 18­349 Embedded Real-Time Systems 1 Introduction This document contains details on the U-Boot 1.1.4 Exports API used by standalone applications. Most of the details of this document were derived from reading the U-Boot source code relevant to the gum- stix

Narasimhan, Priya

388

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

E-Print Network (OSTI)

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

Najjar, Walid A.

389

Periodic Charging Scheme for Fixed-Priority Real-Time Systems with Renewable Energy  

E-Print Network (OSTI)

to the limited capacity of the energy storage unit. With energy harvesting, in theory it becomes possiblePeriodic Charging Scheme for Fixed-Priority Real-Time Systems with Renewable Energy Mario Bambagini, Fairfax, VA, USA e-mail: aydin@cs.gmu.edu Abstract--Energy harvesting systems are gaining increasing

Aydin, Hakan

390

Real-Time Welfare-Maximizing Regulation Allocation in Dynamic Aggregator-EVs System  

E-Print Network (OSTI)

external energy sources for the aggregator. The algorithm operates in real time and does not require any prevalent in the near future. For example, from one report of the U.S. department of energy [1 of transportation, EVs can also be used as distributed electricity generation/storage devices when plugged-in [2

Liang, Ben

391

A RECOGNITION SYSTEM THAT USES SACCADES TO DETECT CARS FROM REAL-TIME VIDEO STREAMS  

E-Print Network (OSTI)

for vehicle detection [3, 4], our approach does not rely on motion information, and the system can detect bothA RECOGNITION SYSTEM THAT USES SACCADES TO DETECT CARS FROM REAL-TIME VIDEO STREAMS Predrag ABSTRACT In this work we present a system for detection of ob- jects from video streams based on properties

392

A real-time computer vision system for vehicle tracking and trac surveillance  

E-Print Network (OSTI)

conditions. We are developing a feature-based tracking system for detecting vehicles under these challengingA real-time computer vision system for vehicle tracking and trac surveillance Benjamin Coifmana and problems associated with existing detectors have spawned an interest in new vehicle detection technologies

Malik, Jitendra

393

IVSS-2005-ARC-04 Intelligent Vehicle Based Architecture for Real-Time Monitoring  

E-Print Network (OSTI)

in cars for various other applications like inertial guidance systems, and crash detection for air- bag. 59 #12;ACOUSTIC WAVES OF RESPIRATORY SYSTEM DETECTING SENSOR A number of statistical measuresIVSS-2005-ARC-04 Intelligent Vehicle Based Architecture for Real-Time Monitoring of Soldiers

Mahmud, Syed Masud

394

Energy Aware Dynamic Voltage and Frequency Selection for Real-Time Systems with Energy Harvesting  

E-Print Network (OSTI)

Energy Aware Dynamic Voltage and Frequency Selection for Real-Time Systems with Energy Harvesting}@binghamton.edu Abstract In this paper, an energy aware dynamic voltage and frequency selection (EA-DVFS) algorithm energy and the harvested energy in a future duration. Specifically, if the system has sufficient energy

Qiu, Qinru

395

OSCAR Parallelizing Compiler and API for Real-time Low Power Heterogeneous Multicores  

E-Print Network (OSTI)

OSCAR Parallelizing Compiler and API for Real-time Low Power Heterogeneous Multicores Akihiro and OSCAR API. OSCAR com- piler and OSCAR API realize coarse grain task parallel processing, data transfer. The compiler using the OSCAR API gives us speedups up to 32x for an optical flow program with 8 general purpose

Kasahara, Hironori

396

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

E-Print Network (OSTI)

and stored in the battery. Sources of energy include ambient vibrations (piezoelectric effect), thermal unit or battery. The set of real-time tasks is decomposed into two different types of task depending harvesting, the energy needed for task execution is supplied by the storage unit (i.e. a battery or capacitor

Paris-Sud XI, Université de

397

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

E-Print Network (OSTI)

Towards Real-Time and Memory Efficient Predictions of Valve States in Diesel Engines Philippe Komma phase complexity while retaining good generalization performance. I. INTRODUCTION In automotive engines T¨ubingen, Germany {philippe.komma, andreas.zell}@uni-tuebingen.de system for a diesel engine

Zell, Andreas

398

Real-time data transfer to 3D modelmaximizing wellbore value  

Science Journals Connector (OSTI)

...this point, the geosteering team expected changes in log characteristics and signs of greater apparent dip angle. Real-time data...earth model and correlations on a Web-based page. This Intranet page could be accessed by any team member connected to the...

Hugh Nicholson; Per Gunnar Folstad; Terje A. Pedersen

399

Generation of communication schedules for multi-mode distributed real-time applications  

Science Journals Connector (OSTI)

A key problem in designing multi-mode real-time systems is the generation of schedules to reduce the complexities of transforming the model semantics to code. Moreover, distributed multi-mode applications are prone to suffer from delays incurred during ...

Akramul Azim; Gonzalo Carvajal; Rodolfo Pellizzoni; Sebastian Fischmeister

2014-03-01T23:59:59.000Z

400

Framework of Real-Time Optical Nyquist-WDM Receiver using Matlab & Simulink  

E-Print Network (OSTI)

________________________________ Dr. Erik Perrins Date Defended: June 3, 2013 2 The Thesis Committee for Adam Crifasi certifies that this is the approved version of the following thesis: Framework of Real-Time Optical Nyquist-WDM Receiver using Matlab... & Simulink ________________________________ Chairperson Dr. Rongqing Hui Date approved: June 3, 2013 3 I investigate an optical Nyquist-WDM Bit Error Rate (BER) detection system. A transmitter...

Crifasi, Adam Vincenzo

2013-08-31T23:59:59.000Z

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

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

E-Print Network (OSTI)

-time control of the combustion process. Following a description of syngas production from coal, we outline was retrofitted with a new syngas- fired combustion turbine. The total sulfur dioxide (SO2) emissions from of coal (syngas), requires physical and chemical sensors for exhaust gas monitoring as well as real

Ghosh, Ruby N.

402

Real-Time Detection of Invisible Spreaders MyungKeun Yoon Shigang Chen  

E-Print Network (OSTI)

Real-Time Detection of Invisible Spreaders MyungKeun Yoon Shigang Chen Department of Computer spreaders that are invisible to the current systems. The new scheme stores information about normal traffic' information stored elsewhere in the memory. The proposed scheme is light weight; it can detect invisible

Chen, Shigang

403

Performance Tests of a 12-Channel Real-Time GPS L1 Software Receiver  

E-Print Network (OSTI)

Geospace Mission Definition Team. ABSTRACT A 12-channel real-time GPS software receiver has been tested code (MMX). This upgrade provides a 25% increases in processing speed. Another aspect that is discussed is the use of 1-bit RF front end data and the related speed- up. The software receiver is tested under static

Psiaki, Mark L.

404

RealTime Video PhaseLocked Loops Jeffrey E. Boyd and Maxwell Sayles  

E-Print Network (OSTI)

Real­Time Video Phase­Locked Loops Jeffrey E. Boyd and Maxwell Sayles Dept. of Computer SciencePLLs is found in Boyd [3]. Figure 1(a) shows, as superimposed frames, an image sequences of an oscillatory design, simulation and appli­ cations. McGraw--Hill, New York, 1999. [3] J. E. Boyd. Video phase

Boyd, Jeffrey E.

405

AN OPERATOR EXPERIENCE WITH A HIERARCHICAL REAL-TIME CONTROL SYSTEM (RCS)  

E-Print Network (OSTI)

AN OPERATOR EXPERIENCE WITH A HIERARCHICAL REAL-TIME CONTROL SYSTEM (RCS) Hui-Min Huang Mechanical@cme.nist.gov ABSTRACT The issue of operator interface in the RCS hierarchical control systems is the focus operators to be involved in system operations in different degrees. In some situations, the operators

406

PulsewidthModulationBased on Real-TimeSolution of Algebraic Harmonic EliminationEquations  

E-Print Network (OSTI)

. Grotstollen Institute for Power Electronics and Electrical Drives,University of Paderbom, Warburger Str. 100 -Determinationof pulse patterns for the eliminationof some low-order harmonics of a PWM inverter necessitates-consumingwhen the equationsare to be solvedin real-time,even when a digitalsignal processor (DSP)is used [14]. A new systemof

Paderborn, Universität

407

Outage Detection via Real-time Social Stream Analysis: Leveraging the Power of Online Complaints  

E-Print Network (OSTI)

disruptions. Each is described below with their ac- companying defects. Internal monitoring systems. NetflixOutage Detection via Real-time Social Stream Analysis: Leveraging the Power of Online Complaints documents the design and development of an outage detection system for the online services provided

Dekhtyar, Alexander

408

A Real-time Distributed Storage System for Multi-Resolution Virtual Synchrophasor  

E-Print Network (OSTI)

sets of distributed Phasor Data Concentrators (PDCs) collectively process PMU data to achieve real with a certain resolution requirement, a complete set of PMU data can be composed by combining samples from-time distributed storage system to support the virtual PMU data communication. We extend the Chord algorithm so

Mueller, Frank

409

Real-time formalism for studying the nonlinear response of "smart" materials to an electric field  

E-Print Network (OSTI)

Real-time formalism for studying the nonlinear response of "smart" materials to an electric field J developed for so-called "smart" materials that are tuned to lie close to the metal- insulator transition (RSFQ) ideas [3]. A "smart" material is a mate- rial that can have its properties altered by changing

Freericks, Jim

410

Preprint No. 4825 A Real Time DSP Kernel for Concurrent Audio Tasks  

E-Print Network (OSTI)

Preprint No. 4825 A Real Time DSP Kernel for Concurrent Audio Tasks David Reinhardt and Robert C audio tasks, but this poses a variety of practical problems. In this paper the features of general-purpose operating systems are contrasted with the needs of typical audio DSP processes, andthe architecture

Maher, Robert C.

411

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

E-Print Network (OSTI)

........................................................................................................3 2 Real-Time PCR Graph ...........................................................................................4 3 Fecal Sample Collection Timeline .........................................................................6 4 Purification... 280 ratio between 1.8-1.9 indicates highly purified DNA; whereas, a ratio less than 1.8 indicates protein contamination (2). Unfortunately, co-purification of acidified polysaccharides, such as DSS cannot be detected using a spectrophotometrically...

Kaur, Jaspreet

2011-08-04T23:59:59.000Z

412

Time-delayed feedback control of coherence resonance near subcritical Hopf bifurcation: theory versus experiment  

E-Print Network (OSTI)

Using the model of a generalized Van der Pol oscillator in the regime of subcritical Hopf bifurcation we investigate the influence of time delay on noise-induced oscillations. It is shown that for appropriate choices of time delay either suppression or enhancement of coherence resonance can de achieved. Analytical calculations are combined with numerical simulations and experiments on an electronic circuit.

V. Semenov; A. Feoktistov; T. Vadivasova; E. Schll; A. Zakharova

2014-12-03T23:59:59.000Z

413

Non-preemptive scheduling of periodic and aperiodic tasks in the hard real-time systems  

E-Print Network (OSTI)

S. 38 40 11 Enumeration tree search . 42 12 Optimizing two requests in the LOQS globally. 13 Identifying dynamic dominant requests. 14 Dispatching requests in ZOgS. 50 51 15 Extraction algorithm. 53 16 Extraction algorithm by heuristic... in hard real ? time environment, the measure- ment criteria for a good algorithm can be a success ratio and a decision time required for dispatching. The success ratio, when a certain algorithm is used, is the ratio of number of tash sets which...

Oh, Hoon

1992-01-01T23:59:59.000Z

414

Utility Accrual Real-Time Scheduling Under Variable Cost Functions Haisang Wu Umut Balli Binoy Ravindran E. Douglas Jensen  

E-Print Network (OSTI)

Utility Accrual Real-Time Scheduling Under Variable Cost Functions Haisang Wu Umut Balli Binoy,binoy}@vt.edu The MITRE Corporation Bedford, MA 01730, USA jensen@mitre.org Abstract We present a utility accrual real application activities that are subject to time/utility function time constraints, VCFs, and the multi

Ravindran, Binoy

415

Demand Response-Enabled Model Predictive HVAC Load Control in Buildings using Real-Time Electricity Pricing.  

E-Print Network (OSTI)

??A practical cost and energy efficient model predictive control (MPC) strategy is proposed for HVAC load control under dynamic real-time electricity pricing. The MPC strategy (more)

Avci, Mesut

2013-01-01T23:59:59.000Z

416

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

SciTech Connect

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

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

2011-11-01T23:59:59.000Z

417

Po?Poster ? 36: Using the internet for real?time medical physics education  

Science Journals Connector (OSTI)

This presentation is an update on the Remote Real?Time Learning Project (http://www.neteinfach.com/rrtl/index.htm). The goal of the project is to promote the use of Internet to provide classroom style real?time interactive education in Medical Physics. This project was started 3 years ago as a collaboration between the Department of Medical Physics at the Toronto?Sunnybrook Regional Cancer Centre in Canada and the Department of Radiology at the University of Malaya in Malaysia. A class of Medical Physicsgraduate students at the University of Malaya attended lectures provided by lecturers in Toronto using the Internet as the main tool of communication. As part of the study the different methods that can be used to provide real?time interactive remote education were explored and various topics including traditional classroom lectures as well as hands?on workshops were also delivered. Based on our experience a reasonably stable methodology has been established. This methodology allows a fairly smooth set?up and conduction of the lectures at an insignificant cost while offering flexible convenience to the lecturers as well as the students despite the widely different time zones. The current plan is to expand the process to allow students at multiple sites of the world to attend the online lectures at the same time. Our project welcomes the participation of both lecturers and students who are interested in taking advantage of the advance of the Internet to promote greater accessibility of quality education in the field.

M Woo; K Ng

2005-01-01T23:59:59.000Z

418

Human cortical sensorimotor network underlying feedback control of vocal pitch  

Science Journals Connector (OSTI)

...self-produced speech are suppressed (listening > speaking). Self-vocalization...pitch feedback (speaking > listening) (23), a phenomenon called...digital signal-processing device (DSP) to induce real-time pitch...differed between speaking and listening. (High-{gamma...

Edward F. Chang; Caroline A. Niziolek; Robert T. Knight; Srikantan S. Nagarajan; John F. Houde

2013-01-01T23:59:59.000Z

419

Human cortical sensorimotor network underlying feedback control of vocal pitch  

E-Print Network (OSTI)

Human cortical sensorimotor network underlying feedback control of vocal pitch Edward F. Changa,1 control of pitch using direct cortical recordings. Subjects phonated while a real-time signal processor briefly perturbed their output pitch (speak condition). Subjects later heard the same recordings

Knight, Robert T.

420

Can the ring polymer molecular dynamics method be interpreted as real time quantum dynamics?  

SciTech Connect

The ring polymer molecular dynamics (RPMD) method has gained popularity in recent years as a simple approximation for calculating real time quantum correlation functions in condensed media. However, the extent to which RPMD captures real dynamical quantum effects and why it fails under certain situations have not been clearly understood. Addressing this issue has been difficult in the absence of a genuine justification for the RPMD algorithm starting from the quantum Liouville equation. To this end, a new and exact path integral formalism for the calculation of real time quantum correlation functions is presented in this work, which can serve as a rigorous foundation for the analysis of the RPMD method as well as providing an alternative derivation of the well established centroid molecular dynamics method. The new formalism utilizes the cyclic symmetry of the imaginary time path integral in the most general sense and enables the expression of Kubo-transformed quantum time correlation functions as that of physical observables pre-averaged over the imaginary time path. Upon filtering with a centroid constraint function, the formulation results in the centroid dynamics formalism. Upon filtering with the position representation of the imaginary time path integral, we obtain an exact quantum dynamics formalism involving the same variables as the RPMD method. The analysis of the RPMD approximation based on this approach clarifies that an explicit quantum dynamical justification does not exist for the use of the ring polymer harmonic potential term (imaginary time kinetic energy) as implemented in the RPMD method. It is analyzed why this can cause substantial errors in nonlinear correlation functions of harmonic oscillators. Such errors can be significant for general correlation functions of anharmonic systems. We also demonstrate that the short time accuracy of the exact path integral limit of RPMD is of lower order than those for finite discretization of path. The present quantum dynamics formulation also serves as the basis for developing new quantum dynamical methods that utilize the cyclic nature of the imaginary time path integral.

Jang, Seogjoo, E-mail: sjang@qc.cuny.edu [Department of Chemistry and Biochemistry, Queens College and the Graduate Center, City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367 (United States)] [Department of Chemistry and Biochemistry, Queens College and the Graduate Center, City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367 (United States); Sinitskiy, Anton V.; Voth, Gregory A., E-mail: gavoth@uchicago.edu [Department of Chemistry, James Franck Institute, Institute for Biophysical Dynamics and Computation Institute, University of Chicago, 5735 S. Ellis Avenue, Chicago, Illinois 60637 (United States)

2014-04-21T23:59:59.000Z

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Implementation of scheduling agents for the R-shell real-time environment  

E-Print Network (OSTI)

for the dispatcher to start at the appropriate start time. Since these jobs are blocking on a resource request, they can be preempted with a request exception message when a higher priority task arrives. This design reduces the amount of overhead incurred at run... and dispatching, while aperiodic tasks fall under the last two categories. For a hard real-time system, a static scheduling algorithm is one that requires complete knowl- edge of task characteristics at system initialization time. A dynamic scheduling algorithm...

Herdejurgen, Michael Seann

1993-01-01T23:59:59.000Z

422

Loading Effect Correction for Real-Time Aethalometer Measurements of Fresh  

NLE Websites -- All DOE Office Websites (Extended Search)

Loading Effect Correction for Real-Time Aethalometer Measurements of Fresh Loading Effect Correction for Real-Time Aethalometer Measurements of Fresh Diesel Soot Title Loading Effect Correction for Real-Time Aethalometer Measurements of Fresh Diesel Soot Publication Type Journal Article Year of Publication 2007 Authors Jimenez, Jorge, Candis S. Claiborn, Timothy Larson, Timothy Gould, Thomas W. Kirchstetter, and Lara A. Gundel Journal Journal of the Air & Waste Management Association Volume 57 Issue 7 Pagination 868-873 Abstract In this study, a correction was developed for the aethalometer to measure real-time black carbon (BC) concentrations in an environment dominated by fresh diesel soot. The relationship between the actual mass-specific absorption co-efficient for BC and the BC-dependent attenuation coefficients was determined from experiments conducted in a diesel exposure chamber that provided constant concentrations of fine particulate matter (PM; PM2.5; PM <2.5 μm aerodynamic diameter) from diesel exhaust. The aethalometer reported BC concentrations decreasing with time from 48.1 to 31.5 μg m-3 when exposed to constant PM2.5 concentrations of 55 ± 1 μg m-3 and bscat 95 ± 3Mm-1 from diesel exhaust. This apparent decrease in reported light-absorbing PM concentration was used to derive a correction K (ATN) for loading of strong light-absorbing particles onto or into the aethalometer filter tape, which was a function of attenuation of light at 880 nm by the embedded particles.

423

High Throughput Web Inspection System using Time-stretch Real-time Imaging  

E-Print Network (OSTI)

successfully report a dark-field web inspection system withsample substrate for our dark-field web inspection systemweb inspection system exploiting time- stretch and utilizing the merits coming from dark-

Kim, Chanju

2013-01-01T23:59:59.000Z

424

Prototype Phasor-Based Real-Time Monitoring Software Tool - Training Presentation  

NLE Websites -- All DOE Office Websites (Extended Search)

Prototype Phasor-Based Real-Time Monitoring Prototype Phasor-Based Real-Time Monitoring Software Tool - Training Presentation Prepared For: California Energy Commission Public Interest Energy Research Program Prepared By: Lawrence Berkeley National Laboratory Consortium for Electric Reliability Technology Solutions APPENDIX E October 2008 CEC-500-2008-049-APE Prepared By: Lawrence Berkeley National Laboratory Joe Eto, Manu Parashar, Bernard Lesieutre, and Nancy Jo Lewis Berkeley, CA Administered by University of California, California Institute for Energy and Environment under 500-99-013, BOA-138. Jim Cole, Larry Miller Oakland, California 94612 Commission Contract No. 500-02-004 Commission Work Authorization No: MR-036 Prepared For: Public Interest Energy Research (PIER)

425

NETL: News Release - DOE-Online Monitor Snaps Real-Time Photos for  

NLE Websites -- All DOE Office Websites (Extended Search)

June 6, 2005 June 6, 2005 DOE-Online Monitor Snaps Real-Time Photos for Real-Life Savings Turbine Technology Could Save Millions in Maintenance and Replacement Costs ORLANDO, FL - An innovative new system that continuously monitors operating blades in gas turbines has surpassed 5,000 hours of operation, confirming that the technology is ready for commercialization. Developed by Siemens Power Generation, with funding from the U.S. Department of Energy, the online monitor makes it possible for operators to replace turbine blades based on their actual condition, when the thermal barrier coating is worn or damaged. This capability optimizes the life of the blades, avoids the high cost of unscheduled replacement, and extends the time between preventative maintenance periods, increasing the availability of the plant.

426

Real-Time Green--Making Urban Climate Protection Matter in a Recession  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-Time Green--Making Urban Climate Protection Matter in a Recession Real-Time Green--Making Urban Climate Protection Matter in a Recession Speaker(s): Scott Bernstein Date: September 16, 2011 - 11:30am Location: 90-3075 Seminar Host/Point of Contact: Mark Levine In the 1980s, the number of cities or regions that assembled an energy or carbon baseline could be counted on one hand; today that number is in the thousands. But much of the excitement about an aggressive approach to effective climate protection has been sobered by the economic situation. While a greener economy is necessary to a full recovery, maintaining commitments made while the larger economy was growing is difficult. Scott Bernstein of the Center for Neighborhood Technology, who was directly involved in the crafting of the Chicago Climate Action Plan, will present a

427

Indirect rotor position sensing in real time for brushless permanent magnet motor drives  

SciTech Connect

This paper describes a modern solution to real-time rotor position estimation of brushless permanent magnet (PM) motor drives. The position estimation scheme, based on flux linkage and line-current estimation, is implemented in real time by using the abc reference frame, and it is tested dynamically. The position estimation model of the test motor, development of hardware, and basic operation of the digital signal processor (DSP) are discussed. The overall position estimation strategy is accomplished with a fast DSP (TMS320C30). The method is a shaft position sensorless method that is applicable to a wide range of excitation types in brushless PM motors without any restriction on the motor model and the current excitation. Both rectangular and sinewave-excited brushless PM motor drives are examined, and the results are given to demonstrate the effectiveness of the method with dynamic loads in closed estimated position loop.

Ertugrul, N. [Univ. of Adelaide (Australia). Dept. of Electrical and Electronic Engineering] [Univ. of Adelaide (Australia). Dept. of Electrical and Electronic Engineering; Acarnley, P.P. [Univ. of Newcastle upon Tyne (United Kingdom). Dept. of Electrical and Electronic Engineering] [Univ. of Newcastle upon Tyne (United Kingdom). Dept. of Electrical and Electronic Engineering

1998-07-01T23:59:59.000Z

428

Comparative Studies of Clustering Techniques for Real-Time Dynamic Model Reduction  

E-Print Network (OSTI)

Dynamic model reduction in power systems is necessary for improving computational efficiency. Traditional model reduction using linearized models or offline analysis would not be adequate to capture power system dynamic behaviors, especially the new mix of intermittent generation and intelligent consumption makes the power system more dynamic and non-linear. Real-time dynamic model reduction emerges as an important need. This paper explores the use of clustering techniques to analyze real-time phasor measurements to determine generator groups and representative generators for dynamic model reduction. Two clustering techniques -- graph clustering and evolutionary clustering -- are studied in this paper. Various implementations of these techniques are compared and also compared with a previously developed Singular Value Decomposition (SVD)-based dynamic model reduction approach. Various methods exhibit different levels of accuracy when comparing the reduced model simulation against the original model. But some ...

Hogan, Emilie; Halappanavar, Mahantesh; Huang, Zhenyu; Lin, Guang; Lu, Shuai; Wang, Shaobu

2015-01-01T23:59:59.000Z

429

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

SciTech Connect

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

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

2010-01-01T23:59:59.000Z

430

Real time assimilation of HF radar currents into a coastal ocean model  

E-Print Network (OSTI)

A real time assimilation and forecasting system for coastal currents is presented. The purpose of the system is to deliver current analyses and forecasts based on assimilation of high frequency radar surface current measurements. The local Vessel Traffic Service monitoring the ship traffic to two oil terminals on the coast of Norway received the analyses and forecasts in real time. A new assimilation method based on optimal interpolation is presented where spatial covariances derived from an ocean model are used instead of simplified mathematical formulations. An array of high frequency radar antennae provide the current measurements. A suite of nested ocean models comprise the model system. The observing system is found to yield good analyses and short range forecasts that are significantly improved compared to a model twin without assimilation. The system is fast; analysis and six hour forecasts are ready at the Vessel Traffic Service 45 minutes after acquisition of radar measurements.

Breivik, yvind; 10.1016/S0924-7963(01)00002-1

2012-01-01T23:59:59.000Z

431

Weight-balanced security-aware scheduling for real-time computational grid  

Science Journals Connector (OSTI)

Security-aware scheduling for real-time grid applications is an important task and a little work has been done to accomplish this. In this paper, we propose two scheduling algorithms for real-time grid applications with stringent security requirements, and the proposed algorithms are compared with a few existing scheduling algorithms, i.e. MinMin, MaxMin, EDF/ECT, SPMinMin and SPMaxMin. Security overhead computation for existing and proposed models is done on the basis of security level demand of the tasks. Performance of WB-EDFMin on success rate performance metric is considered to be the best among all the contemporary scheduling algorithms. SFWB-EDFMin compromises on the overall success rate of the grid application but its task scheduling is uniformly spread over the tasks of all security levels.

Rekha Kashyap; Deo Prakash Vidyarthi

2011-01-01T23:59:59.000Z

432

A real-time borehole correction of electromagnetic wave resistivity logging while drilling  

Science Journals Connector (OSTI)

Abstract The response of electromagnetic wave logging while drilling is influenced greatly by borehole and drilling fluid resistivity when the size of borehole is relatively large and drilling fluid resistivity is low. Borehole radius and drilling fluid resistivity were introduced to obtain more accurate transformed resistivity on the basis of the commonly used resistivity transformation model. The influence of borehole was considered in the newly established three dimensional transformation model, and a new borehole correction method was proposed. The resistivity transformation database can be established by calculation according to a certain instrument, and the true resistivity is obtained by three dimensional interpolation search technology of real-time correction in practical use. The results of numerical simulation and modeling verification show that the transformed resistivity by real-time correction coincides with the resistivity corrected by charts. The method can eliminate the borehole influence, reduce calculation dimension, and improve the inversion efficiency of highly deviated and horizontal wells logging data.

Zhen YANG; Jinzhou YANG; Laiju HAN

2013-01-01T23:59:59.000Z

433

Automated Real-Time Classification and Decision Making in Massive Data Streams from Synoptic Sky Surveys  

E-Print Network (OSTI)

The nature of scientific and technological data collection is evolving rapidly: data volumes and rates grow exponentially, with increasing complexity and information content, and there has been a transition from static data sets to data streams that must be analyzed in real time. Interesting or anomalous phenomena must be quickly characterized and followed up with additional measurements via optimal deployment of limited assets. Modern astronomy presents a variety of such phenomena in the form of transient events in digital synoptic sky surveys, including cosmic explosions (supernovae, gamma ray bursts), relativistic phenomena (black hole formation, jets), potentially hazardous asteroids, etc. We have been developing a set of machine learning tools to detect, classify and plan a response to transient events for astronomy applications, using the Catalina Real-time Transient Survey (CRTS) as a scientific and methodological testbed. The ability to respond rapidly to the potentially most interesting events is a k...

Djorgovski, S G; Donalek, C; Graham, M J; Drake, A J; Turmon, M; Fuchs, T

2014-01-01T23:59:59.000Z

434

Real time method and computer system for identifying radioactive materials from HPGe gamma-ray spectroscopy  

DOE Patents (OSTI)

A real-time method and computer system for identifying radioactive materials which collects gamma count rates from a HPGe gamma-radiation detector to produce a high-resolution gamma-ray energy spectrum. A library of nuclear material definitions ("library definitions") is provided, with each uniquely associated with a nuclide or isotope material and each comprising at least one logic condition associated with a spectral parameter of a gamma-ray energy spectrum. The method determines whether the spectral parameters of said high-resolution gamma-ray energy spectrum satisfy all the logic conditions of any one of the library definitions, and subsequently uniquely identifies the material type as that nuclide or isotope material associated with the satisfied library definition. The method is iteratively repeated to update the spectrum and identification in real time.

Rowland, Mark S. (Alamo, CA); Howard, Douglas E. (Livermore, CA); Wong, James L. (Dublin, CA); Jessup, James L. (Tracy, CA); Bianchini, Greg M. (Livermore, CA); Miller, Wayne O. (Livermore, CA)

2007-10-23T23:59:59.000Z

435

A Data Driven Framework for Real Time Power System Event Detection and Visualization  

E-Print Network (OSTI)

Increased adoption and deployment of phasor measurement units (PMU) has provided valuable fine-grained data over the grid. Analysis over these data can provide real-time insight into the health of the grid, thereby improving control over operations. Realizing this data-driven control, however, requires validating, processing and storing massive amounts of PMU data. This paper describes a PMU data management system that supports input from multiple PMU data streams, features an event-detection algorithm, and provides an efficient method for retrieving archival data. The event-detection algorithm rapidly correlates multiple PMU data streams, providing details on events occurring within the power system in real-time. The event-detection algorithm feeds into a visualization component, allowing operators to recognize events as they occur. The indexing and data retrieval mechanism facilitates fast access to archived PMU data. Using this method, we achieved over 30x speedup for queries with high selectivity. With th...

McCamish, Ben; Landford, Jordan; Bass, Robert; Cotilla-Sanchez, Eduardo; Chiu, David

2015-01-01T23:59:59.000Z

436

Low Dose Radiation Research Program: Real-time Study of Signal Transduction  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-time Study of Signal Transduction Pathways Involving in Real-time Study of Signal Transduction Pathways Involving in Bystander Effects Using Single Nanoparticle Optics and Single Living Cell Imaging Authors: Prakash D. Nallathamby, X. Nancy Xu, Mohan Natarajan Institutions: Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, Virginia and Department of Radiation Oncology, The University of Texas Health Science Center, San Antonio, Texas The mechanisms of bystander effects remain largely unknown. Bystander responses are thought to depend on activation of cellular communication processes. Recent studies have speculated that several crucial signal transduction pathways could play a major role in bystander effects. These crucial signal transduction pathways are controlled by a coordinated

437

CERTS 2012 Program Review - Real Time Simulation of Power Grid Operation & Contral - Mani Venkatasubramanian, WSU  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Power Grid Simulator Power Grid Simulator Mani V. Venkatasubramanian Dave Anderson, Chuanlin Zhao Carl Hauser, David Bakken Anjan Bose Washington State University Pullman WA 2 GridSim - Real Time Simulation of Power Grid Operation & Control * Funded by USDOE * Project team: Mani Venkatasubramanian (Project Lead), Anjan Bose, Dave Bakken, Carl Hauser, Chuanlin Zhao, Dave Anderson, Alex Ning, Ming Meng, Lin Zhang * Simulate PMU like real-time responses of large- scale power system including power grid dynamics and communication network 3 Project Objectives Improve Reliability and Security of the Electric Power Grid by developing * The new communications and information systems needed to support better automatic controls and operator support tools * The new wide area automatic algorithms needed

438

First real time detection of Be7 solar neutrinos by Borexino  

E-Print Network (OSTI)

This paper reports a direct measurement of the Be7 solar neutrino signal rate performed with the Borexino low background liquid scintillator detector. This is the first real-time spectral measurement of sub-MeV solar neutrinos. The result for 0.862 MeV Be7 is 47 +- 7 (stat} +- 12 (sys} counts/(day x 100 ton), consistent with predictions of Standard Solar Models and neutrino oscillations with LMA-MSW parameters.

Borexino Collaboration

2007-09-07T23:59:59.000Z

439

Revealing cyclic hardening mechanism of a TRIP steel by real-time in situ neutron diffraction  

SciTech Connect

Real-time in situ neutron diffraction was performed on a transformation-induced plasticity (TRIP) steel under cyclic loading at room temperature. By Rietveld refinement and single peak analysis, the volume fraction and average stress estimates as well as dislocation density of individual phases (austenite and martensite phase) were derived. The results reveal that the volume fraction of martensite phase, instead of individual phase strengthening, should be accounted for the remarkable secondary cyclic hardening.

Yu, Dunji [ORNL; An, Ke [ORNL; Chen, Yan [ORNL; Chen, Xu [Tianjin UNiversity, China

2014-01-01T23:59:59.000Z

440

New frac analysis uses real-time information to lower costs, raise  

SciTech Connect

Evolving hydraulic fracturing technology during the past 10 years has led to reduced costs, improved production and increased cash flow. This report describes several critical aspects in hydraulic fracturing including mechanisms, approaches in treatment quality control procedures and stress profile development, and finally, it is shown how the mechanisms or processes can be addressed and improved through advanced, real-time hydraulic fracture treatment evaluation and execution.

Aud, W.W.; Middlebrook, M.L. [Integrated petroleum Technologies Inc., Denver, CO (United States)

1995-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Real-time determination of free energy and losses in optical absorbing media  

E-Print Network (OSTI)

We introduce notions of free energy and loss in linear, absorbing dielectric media which are relevant to the regime in which the macroscopic Maxwell equations are themselves relevant. As such we solve a problem eluded to by Landau and Lifshitz in 1958, and later considered explicitly by Barash and Ginzburg, and Oughtsun and Sherman. As such we provide physically-relevant real-time notions of "energy" and "loss" in all analogous linear dissipative systems.

C. Broadbent; G. Hovhannisyan; J. Peatross; M. Clayton; S. Glasgow

2002-07-30T23:59:59.000Z

442

Characterizing Biofuel Combustion with Patterns of Real-Time Emission Data (PaRTED)  

Science Journals Connector (OSTI)

Characterizing Biofuel Combustion with Patterns of Real-Time Emission Data (PaRTED) ... Oanh, N. T. K.; Reutergardh, L. B.; Dung, N. T.Emission of polycyclic aromatic hydrocarbons and particulate matter from domestic combustion of selected fuels Environ. ... Pollutant emissions increased with increasing stove thermal efficiency, implying that thermal efficiency enhancement in the improved stoves was mainly from design features leading to increased heat transfer but not combustion efficiency. ...

Yanju Chen; Christoph A. Roden; Tami C. Bond

2012-04-25T23:59:59.000Z

443

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

SciTech Connect

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

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

2014-05-07T23:59:59.000Z

444

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

DOE Patents (OSTI)

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

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

2011-11-01T23:59:59.000Z

445

Supervisory Feed-Forward Control for Real-Time Topping Cycle CHP Operation  

SciTech Connect

This paper presents an energy dispatch algorithm for real-time topping cycle Cooling, Heating, and Power (CHP) operation for buildings with the objective of minimizing the operational cost, primary energy consumption (PEC), or carbon dioxide emission (CDE). The algorithm features a supervisory feed-forward control for real-time CHP operation using short-term weather forecasting. The advantages of the proposed control scheme for CHP operation are (a) relatively simple and efficient implementation allowing realistic real-time operation , (b) optimized CHP operation with respect to operational cost, PEC, or CDE, and (c) increased site-energy consumption (SEC) resulting in less dependence on the electric grid. In the feed-forward portion of the control scheme, short-term electric, cooling, and heating loads are predicted using the U.S. Department of Energy (DOE) benchmark small office building model. The results are encouraging regarding the potential saving of operational cost, PEC, and CDE from using the control system for a CHP system with electric and thermal energy storages.

Cho, Heejin; Luck, Rogelio; Chamra, Louay M.

2010-03-01T23:59:59.000Z

446

Quasi-parallel network applications in real-time distribution management system  

Science Journals Connector (OSTI)

In modern distribution management systems (DMSs), the real-time calculation of the network's state plays an important role for the operation of the network. High sophisticated algorithms for the estimation and calculation of the system's state like distribution system state estimation (DSSE), distribution system power and short circuit calculations (DSPF and SCC), voltage var control (VVC) and others must operate in a real-time environment, supplying subsequently running functions with reliable input data. Closed-loop requirements also increase the requirements concerning performance, availability and robustness. In this paper, an implementation of the sequence control of different DMS-network applications is presented. This proposed real-time scheduler takes advantage of CPU-cores inside of a modern computer system: by passing subtasks to different CPU-cores, the overall performance is significantly increased. The scheduling process is analysed in detail taking the nature of a distribution system into consideration. The presentation is finalised with a report about the gain of performance for the state estimation process.

Izudin Dzafic; Hans-Theo Neisius

2012-01-01T23:59:59.000Z

447

A LPV approach to control and real-time scheduling codesign: application to a robot-arm control  

E-Print Network (OSTI)

A LPV approach to control and real-time scheduling codesign: application to a robot-arm control computational constraints. A robust control approach to control/real-time scheduling co-design is proposed using scheduler is designed to adapt the control tasks periods according to the plant behavior

Paris-Sud XI, Université de

448

The Value of PORTS to the Nation How Real-time Observations Improve Safety and Economic Efficiency of Maritime Commerce  

E-Print Network (OSTI)

The Value of PORTS® to the Nation How Real-time Observations Improve Safety and Economic Efficiency. Credit: Steve O'Malley, Ocean Tech Services, LLC #12;Our lives depend on maritime commerce http://tidesandcurrents.noaa.gov/ports in accidents on the nation's waterways and major seaports. Real-time observations from PORTS®, or the Physical

449

An Architecture for Distributed Real-Time Passive Network Measurement Tilman Wolf, Ramaswamy Ramaswamy, Siddhartha Bunga, and Ning Yang  

E-Print Network (OSTI)

An Architecture for Distributed Real-Time Passive Network Measurement Tilman Wolf, Ramaswamy network information be- tween several measurement nodes placed at different loca- tions in the network-processing them on the measurement node itself. Real-time queries are implemented by breaking them down

Shenoy, Prashant

450

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

E-Print Network (OSTI)

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

Fu, Yong

451

A Portable Real Time Data Acquisition System for the Comparison of Floor Vibration Data with AISC Design Guide  

E-Print Network (OSTI)

A portable real time vibration measurement data acquisition system was assembled with the intentionA Portable Real Time Data Acquisition System for the Comparison of Floor Vibration Data with AISC. THEORETICAL BACKGROUND In response to the increasing incidence of vibration problems in modern floor systems

Hines, Eric

452

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

E-Print Network (OSTI)

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

Killough, David Thomas

2012-06-07T23:59:59.000Z

453

Low-power DSP system for real-time correction of fish-eye cameras in automotive driver assistance applications  

Science Journals Connector (OSTI)

The development of an embedded system for real-time correction of fish-eye effect is presented. The fish-eye lens is applied to driver assistance video systems because of its wide-angled view. A large field of view can reduce the number of cameras needed ... Keywords: Automotive, Driver assistance, Fish-eye, Real-time video processing, Video correction

Mauro Turturici, Sergio Saponara, Luca Fanucci, Emilio Franchi

2014-09-01T23:59:59.000Z

454

Black-box System Testing of Real-Time Embedded Systems Using Random and Search-based Testing  

E-Print Network (OSTI)

of nuclear reactors and flying systems). Testing RTES is particularly chal- lenging since they operateBlack-box System Testing of Real-Time Embedded Systems Using Random and Search-based Testing Andrea. Testing real-time embedded systems (RTES) is in many ways chal- lenging. Thousands of test cases can

Boyer, Edmond

455

A real-time GIS for the analysis of a traffic system C. Claramunt, E. Peytchev and A. Bargiela  

E-Print Network (OSTI)

A real-time GIS for the analysis of a traffic system C. Claramunt, E. Peytchev and A. Bargiela describes a prototype development of a new system for the integration of real-time traffic data within a GIS in which systems are designed and used in many application fields. Geographical Information Systems (GIS

Bargiela, Andrzej

456

A Bi-Criteria Scheduling Heuristics for Distributed Embedded Systems under Reliability and Real-Time Constraints  

E-Print Network (OSTI)

A Bi-Criteria Scheduling Heuristics for Distributed Embedded Systems under Reliability and Real are met. Keywords: Distributed real-time systems, safety-critical systems, reliability, multi-time distributed systems in the literature do not attempt to introduce reliability; rather, they concentrate

Girault, Alain

457

A BiCriteria Scheduling Heuristics for Distributed Embedded Systems under Reliability and RealTime Constraints  

E-Print Network (OSTI)

A Bi­Criteria Scheduling Heuristics for Distributed Embedded Systems under Reliability and Real are met. Keywords: Distributed real­time systems, safety­critical systems, reliability, multi­time distributed systems in the literature do not attempt to introduce reliability; rather, they concentrate

Girault, Alain

458

Project CRAFT: A Test Bed for Demonstrating the Real Time Acquisition and Archival of WSR-88D Base  

E-Print Network (OSTI)

the long-term needs for WSR-88D base data archival, and in light of the compelling need for real time. The initial test bed of six radars, located in and around Oklahoma, has been delivering real time base data to substantial improvements in the identification and short-term warning of hazardous local weather (e.g., Crum

Droegemeier, Kelvin K.

459

Beyond kWh and kW demand: Understanding the new real-time electric power  

NLE Websites -- All DOE Office Websites (Extended Search)

Beyond kWh and kW demand: Understanding the new real-time electric power Beyond kWh and kW demand: Understanding the new real-time electric power measurement system in LBNL Building 90 Speaker(s): Alex McEachern Date: January 14, 2010 - 12:00pm Location: 90-3122 In the Summer of 2009, LBNL researchers installed end-use sub-metering equipment and associated Energy Information System (EIS) tools to characterize energy use and comfort in Building 90. Seven of 40 key electric loads were measured using advanced meters that make sophisticated real-time measurements of dozens of power flow parameters, power disturbances, and harmonics. The talk will review some electrical engineering fundamentals, how use and interpret data measured in building 90 in real-time. The real-time data available includes power, volt-amps, VAR's, unbalance voltage and current, voltage and current distortion,

460

Building a wireless mesh networked real-time electricity metering system in an MIT dormitory .  

E-Print Network (OSTI)

??A competitive, closed-loop information feedback system of wireless electricity meters was designed, tested, and implemented in seven MIT dormitory rooms. The meters utilized Allegro Hall (more)

Oehlerking, Austin L

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Real-Time thermal Ward-Takahashi Identity for vectorial current in QED and QCD  

E-Print Network (OSTI)

It is shown that, by means of canonical operator approach, the Ward-Takahashi identity (WTI) at finite temperature $T$ and finite chemical potential $\\mu$ for complete vectorial vertex and complete fermion propagator can be simply proven, rigorously for Quantum Electrodynamics (QED) and approximately for Quantum Chromodynamics (QCD) where the ghost effect in the fermion sector is neglected. The WTI shown in the real-time thermal matrix form will give definite thermal constraints on the imaginary part of inverse complete Feynman propagator including self-energy for fermion and will play important role in relevant physical processes. When the above inverse propagator is assumed to be real, the thermal WTI will essentially be reduced to its form at $T=\\mu=0$ thus one can use it in the latter's form. At this point, a practical example is indicated.

Zhou Bang-Rong

2005-12-05T23:59:59.000Z

462

Real-time sweat pH monitoring based on a wearable chemical barcode micro-fluidic platform incorporating ionic liquids  

Science Journals Connector (OSTI)

This work presents the fabrication, characterisation and the performance of a wearable, robust, flexible and disposable chemical barcode device based on a micro-fluidic platform that incorporates ionic liquid polymer gels (ionogels). The device has been applied to the monitoring of the pH of sweat in real time during an exercise period. The device is an ideal wearable sensor for measuring the pH of sweat since it does not contain any electronic part for fluidic handle or pH detection and because it can be directly incorporated into clothing, head- or wristbands, which are in continuous contact with the skin. In addition, due to the micro-fluidic structure, fresh sweat is continuously passing through the sensing area providing the capability to perform continuous real time analysis. The approach presented here ensures immediate feedback regarding sweat composition. Sweat analysis is attractive for monitoring purposes as it can provide physiological information directly relevant to the health and performance of the wearer without the need for an invasive sampling approach.

Vincenzo F. Curto; Cormac Fay; Shirley Coyle; Robert Byrne; Corinne OToole; Caroline Barry; Sarah Hughes; Niall Moyna; Dermot Diamond; Fernando Benito-Lopez

2012-01-01T23:59:59.000Z

463

A NEAR REAL-TIME BERYLLIUM MONITOR WITH CAM AND WIPE ANALYSIS CAPABILITIES  

SciTech Connect

Science & Engineering Associates, Inc. (SEA), under contract No. DE-AC26-00NT40768, was tasked by the US Department of Energy--National Energy Technology Laboratory to develop and test a near real-time beryllium monitor for airborne and surface measurements. Recent public awareness of the health risks associated with exposure to beryllium has underscored the need for better, faster beryllium monitoring capabilities within the DOE. A near real-time beryllium monitor will offer significant improvements over the baseline monitoring technology currently in use. Whereas the baseline technology relies upon collecting an air sample on a filter and the subsequent analysis of the filter by an analytical laboratory, this effort developed a monitor that offers near real-time measurement results while work is in progress. Since the baseline typically only offers after-the-fact documentation of exposure levels, the near real-time capability provides a significant increase in worker protection. The beryllium monitor developed utilizes laser induced breakdown spectroscopy, or LIBS as the fundamental measurement technology. LIBS has been used in a variety of laboratory and field based instrumentation to provide real-time, and near-real-time elemental analysis capabilities. LIBS is an analytical technique where a pulsed high energy laser beam is focused to a point on the sample to be interrogated. The high energy density produces a small high temperature plasma plume, sometimes called a spark. The conditions within this plasma plume result in the constituent atoms becoming excited and emitting their characteristic optical emissions. The emission light is collected and routed to an optical spectrometer for quantitative spectral analysis. Each element has optical emissions, or lines, of a specific wavelength that can be used to uniquely identify that element. In this application, the intensity of the beryllium emission is used to provide a quantitative measure of the abundance of the element in the sample. The monitor can be operated in one of two modes, as a continuous air monitor (CAM), or as a wipe monitor. In its CAM mode, the monitor collects an air sample for a user programmable sampling time on a conventional mixed cellulose ester (MCE) filter. The monitor can also be used in a wipe analysis mode, where the user can load up to 60 previously collected wipe samples, typically obtained on 47 mm filter media, into disposable filter cassettes. Under this effort, a beryllium monitor was designed, fabricated and tested. During laboratory testing, the monitor's measurement performance met the stated measurement objectives at the outset of the project. A typical minimum detectable beryllium mass for the monitor is below the 0.2 mg/m{sup 3} goal of the project. Field-testing of the monitor show it to exhibit extremely good sensitivity to very low levels of beryllium. On a per spark basis, the monitor has been shown to be capable of detecting a few tens of picograms of beryllium. At the culmination of the project, the beryllium CAM unit was delivered to the U.S. DOE-Rocky Flats Environmental Management Site where it is undergoing additional on-site evaluations.

D.T. Kendrick; Steven Saggese

2002-12-01T23:59:59.000Z

464

Near and Above Ionization Electronic Excitations with Non-Hermitian Real-Time Time-Dependent Density Functional Theory  

SciTech Connect

We present a real-time time-dependent density functional theory (RT-TDDFT) prescription for capturing near and post-ionization excitations based on non-Hermitian von Neumann density matrix propagation with atom-centered basis sets, tuned range-separated DFT, and a phenomenological imaginary molecular orbital-based absorbing potential to mimic coupling to the continuum. The computed extreme ultraviolet absorption spectra for acetylene (C2H2), water (H2O), and Freon 12 (CF2Cl2) agree well with electron energy loss spectroscopy (EELS) data over the range 0 to 50 eV. The absorbing potential removes spurious high energy finite basis artifacts, yielding correct bound to bound transitions, metastable (autoionizing) resonance states, and consistent overall absorption shapes.

Lopata, Kenneth A.; Govind, Niranjan

2013-11-12T23:59:59.000Z

465

Virtual Reality in Brazil 2011: RPR-SORS: Real-time photorealistic rendering of synthetic objects into real scenes  

Science Journals Connector (OSTI)

This paper presents a review of the Photorealistic Augmented Reality field and proposes a solution for interactively rendering virtual objects into dynamic real scenes in a photorealistic way. This solution features a rendering pipeline that comprises ... Keywords: Augmented reality, Authoring toolkit, Computer graphics, Photorealism, Pipeline

Saulo A. Pessoa; Guilherme de S. Moura; Joao Paulo S. do M. Lima; Veronica Teichrieb; Judith Kelner

2012-04-01T23:59:59.000Z

466

The Triangle of Life: Evolving Robots in Real-time and Real-space A.E. Eiben1  

E-Print Network (OSTI)

mecha- nisms. For example, one could use classic mechatronic com- ponents and 3D-printing to produce new and it is repeated in real hardware thus creating `robot children' over and over again. This is new in evolved 3D printed robots, where the body structure is printed off-line. Even if the design is evolved, the printer

Eiben, A.E. "Guszti"

467

Three-dimensional liver motion tracking using real-time two-dimensional MRI  

SciTech Connect

Purpose: Combined magnetic resonance imaging (MRI) systems and linear accelerators for radiotherapy (MR-Linacs) are currently under development. MRI is noninvasive and nonionizing and can produce images with high soft tissue contrast. However, new tracking methods are required to obtain fast real-time spatial target localization. This study develops and evaluates a method for tracking three-dimensional (3D) respiratory liver motion in two-dimensional (2D) real-time MRI image series with high temporal and spatial resolution. Methods: The proposed method for 3D tracking in 2D real-time MRI series has three steps: (1) Recording of a 3D MRI scan and selection of a blood vessel (or tumor) structure to be tracked in subsequent 2D MRI series. (2) Generation of a library of 2D image templates oriented parallel to the 2D MRI image series by reslicing and resampling the 3D MRI scan. (3) 3D tracking of the selected structure in each real-time 2D image by finding the template and template position that yield the highest normalized cross correlation coefficient with the image. Since the tracked structure has a known 3D position relative to each template, the selection and 2D localization of a specific template translates into quantification of both the through-plane and in-plane position of the structure. As a proof of principle, 3D tracking of liver blood vessel structures was performed in five healthy volunteers in two 5.4 Hz axial, sagittal, and coronal real-time 2D MRI series of 30 s duration. In each 2D MRI series, the 3D localization was carried out twice, using nonoverlapping template libraries, which resulted in a total of 12 estimated 3D trajectories per volunteer. Validation tests carried out to support the tracking algorithm included quantification of the breathing induced 3D liver motion and liver motion directionality for the volunteers, and comparison of 2D MRI estimated positions of a structure in a watermelon with the actual positions. Results: Axial, sagittal, and coronal 2D MRI series yielded 3D respiratory motion curves for all volunteers. The motion directionality and amplitude were very similar when measured directly as in-plane motion or estimated indirectly as through-plane motion. The mean peak-to-peak breathing amplitude was 1.6 mm (left-right), 11.0 mm (craniocaudal), and 2.5 mm (anterior-posterior). The position of the watermelon structure was estimated in 2D MRI images with a root-mean-square error of 0.52 mm (in-plane) and 0.87 mm (through-plane). Conclusions: A method for 3D tracking in 2D MRI series was developed and demonstrated for liver tracking in volunteers. The method would allow real-time 3D localization with integrated MR-Linac systems.

Brix, Lau, E-mail: lau.brix@stab.rm.dk [Department of Procurement and Clinical Engineering, Region Midt, Olof Palmes All 15, 8200 Aarhus N, Denmark and MR Research Centre, Aarhus University Hospital, Skejby, Brendstrupgaardsvej 100, 8200 Aarhus N (Denmark)] [Department of Procurement and Clinical Engineering, Region Midt, Olof Palmes All 15, 8200 Aarhus N, Denmark and MR Research Centre, Aarhus University Hospital, Skejby, Brendstrupgaardsvej 100, 8200 Aarhus N (Denmark); Ringgaard, Steffen [MR Research Centre, Aarhus University Hospital, Skejby, Brendstrupgaardsvej 100, 8200 Aarhus N (Denmark)] [MR Research Centre, Aarhus University Hospital, Skejby, Brendstrupgaardsvej 100, 8200 Aarhus N (Denmark); Srensen, Thomas Sangild [Department of Computer Science, Aarhus University, Aabogade 34, 8200 Aarhus N, Denmark and Department of Clinical Medicine, Aarhus University, Brendstrupgaardsvej 100, 8200 Aarhus N (Denmark)] [Department of Computer Science, Aarhus University, Aabogade 34, 8200 Aarhus N, Denmark and Department of Clinical Medicine, Aarhus University, Brendstrupgaardsvej 100, 8200 Aarhus N (Denmark); Poulsen, Per Rugaard [Department of Clinical Medicine, Aarhus University, Brendstrupgaardsvej 100, 8200 Aarhus N, Denmark and Department of Oncology, Aarhus University Hospital, Nrrebrogade 44, 8000 Aarhus C (Denmark)] [Department of Clinical Medicine, Aarhus University, Brendstrupgaardsvej 100, 8200 Aarhus N, Denmark and Department of Oncology, Aarhus University Hospital, Nrrebrogade 44, 8000 Aarhus C (Denmark)

2014-04-15T23:59:59.000Z

468

Combined kV and MV imaging for real-time tracking of implanted fiducial markers  

SciTech Connect

In the presence of intrafraction organ motion, target localization uncertainty can greatly hamper the advantage of highly conformal dose techniques such as intensity modulated radiation therapy (IMRT). To minimize the adverse dosimetric effect caused by tumor motion, a real-time knowledge of the tumor position is required throughout the beam delivery process. The recent integration of onboard kV diagnostic imaging together with MV electronic portal imaging devices on linear accelerators can allow for real-time three-dimensional (3D) tumor position monitoring during a treatment delivery. The aim of this study is to demonstrate a near real-time 3D internal fiducial tracking system based on the combined use of kV and MV imaging. A commercially available radiotherapy system equipped with both kV and MV imaging systems was used in this work. A hardware video frame grabber was used to capture both kV and MV video streams simultaneously through independent video channels at 30 frames per second. The fiducial locations were extracted from the kV and MV images using a software tool. The geometric tracking capabilities of the system were evaluated using a pelvic phantom with embedded fiducials placed on a moveable stage. The maximum tracking speed of the kV/MV system is approximately 9 Hz, which is primarily limited by the frame rate of the MV imager. The geometric accuracy of the system is found to be on the order of less than 1 mm in all three spatial dimensions. The technique requires minimal hardware modification and is potentially useful for image-guided radiation therapy systems.

Wiersma, R. D.; Mao Weihua; Xing, L. [Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California 94305-5847 (United States)

2008-04-15T23:59:59.000Z

469

Buzzing to Play: Lessons Learned From an In the Wild Study of Real-time Vibrotactile Feedback  

E-Print Network (OSTI)

hundreds of hours to learn, such as learning to play a musical instrument, skiing or swimming. However an instrumental role in enhancing learning. Author Keywords In the Wild Study, Children, Sensory-motor Learning position. It can also be used to lightly `touch' someone on their arm, leg wrist, etc., rewarding them

470

Real-time optical diagnostics of graphene growth induced by pulsed chemical vapor deposition  

SciTech Connect

The kinetics and mechanisms of graphene growth on Ni films at 720 -880 C have been measured using fast pulses of acetylene and real-time optical diagnostics. In situ UV-Raman spectroscopy was used to unambiguously detect isothermal graphene growth at high temperatures, measure the growth kinetics with ~ 1s temporal resolution, and estimate the fractional precipitation upon cooldown for the first time. Optical reflectivity and videography provided much faster temporal resolution. Both the growth kinetics and the fractional isothermal precipitation were found to be governed by the C2H2 partial pressure in the CVD pulse for a given film thickness and temperature, with up to ~ 94% of graphene growth occurring isothermally within 1 second at 800 C at high partial pressures. At lower partial pressures, isothermal graphene growth is shown to continue 10 seconds after the gas pulse. These flux-dependent growth kinetics are described in the context of a dissolution/precipitation model, where carbon rapidly dissolves into the Ni film and later precipitates driven by gradients in the chemical potential. The combination of pulsed-CVD and real-time optical diagnostics opens new opportunities to understand and control the fast, sub-second growth of graphene on various substrates at high temperatures.

Puretzky, Alexander A [ORNL; Geohegan, David B [ORNL; Pannala, Sreekanth [ORNL; Rouleau, Christopher M [ORNL; Regmi, Murari [Oak Ridge National Laboratory (ORNL); Thonnard, Norbert [ORNL; Eres, Gyula [ORNL

2013-01-01T23:59:59.000Z

471

Review of real-time electricity markets for integrating Distributed Energy Resources and Demand Response  

Science Journals Connector (OSTI)

Abstract The high penetration of both Distributed Energy Resources (DER) and Demand Response (DR) in modern power systems requires a sequence of advanced strategies and technologies for maintaining system reliability and flexibility. Real-time electricity markets (RTM) are the non-discriminatory transaction platforms for providing necessary balancing services, where the market clearing (nodal or zonal prices depending on markets) is very close to real time operations of power systems. One of the primary functions of \\{RTMs\\} in modern power systems is establishing an efficient and effective mechanism for small DER and DR to participate in balancing market transactions, while handling their meteorological or intermittent characteristics, facilitating asset utilization, and stimulating their active responses. Consequently, \\{RTMs\\} are dedicated to maintaining the flexibility and reliability of power systems. This paper reviews advanced typical \\{RTMs\\} respectively in the North America, Australia and Europe, focusing on their market architectures and incentive policies for integrating DER and DR in electricity markets. In this paper, \\{RTMs\\} are classified into three groups: Group I applies nodal prices implemented by optimal power flow, which clears energy prices every 5min. Group II applies zonal prices, with the time resolution of 5-min. Group III is a general balancing market, which clears zonal prices intro-hourly. The various successful advanced RTM experiences have been summarized and discussed, which provides a technical overview of the present \\{RTMs\\} integrating DER and DR.

Qi Wang; Chunyu Zhang; Yi Ding; George Xydis; Jianhui Wang; Jacob stergaard

2015-01-01T23:59:59.000Z

472

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

E-Print Network (OSTI)

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

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

2015-01-01T23:59:59.000Z

473

Agent-based Large-Scale Emergency Evacuation Using Real-Time Open Government Data  

SciTech Connect

The open government initiatives have provided tremendous data resources for the transportation system and emergency services in urban areas. This paper proposes a traffic simulation framework using high temporal resolution demographic data and real time open government data for evacuation planning and operation. A comparison study using real-world data in Seattle, Washington is conducted to evaluate the framework accuracy and evacuation efficiency. The successful simulations of selected area prove the concept to take advantage open government data, open source data, and high resolution demographic data in emergency management domain. There are two aspects of parameters considered in this study: user equilibrium (UE) conditions of traffic assignment model (simple Non-UE vs. iterative UE) and data temporal resolution (Daytime vs. Nighttime). Evacuation arrival rate, average travel time, and computation time are adopted as Measure of Effectiveness (MOE) for evacuation performance analysis. The temporal resolution of demographic data has significant impacts on urban transportation dynamics during evacuation scenarios. Better evacuation performance estimation can be approached by integrating both Non-UE and UE scenarios. The new framework shows flexibility in implementing different evacuation strategies and accuracy in evacuation performance. The use of this framework can be explored to day-to-day traffic assignment to support daily traffic operations.

Lu, Wei [ORNL; Liu, Cheng [ORNL; Bhaduri, Budhendra L [ORNL

2014-01-01T23:59:59.000Z

474

Real-time Combustion Control and Diagnostics Sensor-Pressure Oscillation Monitor  

NLE Websites -- All DOE Office Websites (Extended Search)

Combustion Control and Diagnostics Combustion Control and Diagnostics Sensor-Pressure Oscillation Monitor Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking licensing partners interested in implementing its patented "Real-Time Combustion Control and Diagnostics Sensor-Pressure Oscillation Monitor" technology. Disclosed is NETL's sensor system and process for monitoring and controlling the amplitude and/or frequencies of dynamic pressure oscillations in combustion systems during active combustion processes. The combustion control and diagnostics sensor (CCADS) is designed for gas turbine combustors that are operated near the fuel-lean flame extinction limit to minimize production of the atmospheric pollutant NOx. CCADS eliminates the problems of flashback,

475

Development plan for an advanced drilling system with real-time diagnostics (Diagnostics-While-Drilling)  

SciTech Connect

This proposal provides the rationale for an advanced system called Diagnostics-while-drilling (DWD) and describes its benefits, preliminary configuration, and essential characteristics. The central concept is a closed data circuit in which downhole sensors collect information and send it to the surface via a high-speed data link, where it is combined with surface measurements and processed through drilling advisory software. The driller then uses this information to adjust the drilling process, sending control signals back downhole with real-time knowledge of their effects on performance. The report presents background of related previous work, and defines a Program Plan for US Department of Energy (DOE), university, and industry cooperation.

FINGER,JOHN T.; MANSURE,ARTHUR J.; PRAIRIE,MICHAEL R.; GLOWKA,D.A.

2000-02-01T23:59:59.000Z

476

Modular Sampling and Analysis Techniques for the Real-Time Analysis of Human Breath  

SciTech Connect

At LLNL and UC Davis, we are developing several techniques for the real-time sampling and analysis of trace gases, aerosols and exhaled breath that could be useful for a modular, integrated system for breath analysis. Those techniques include single-particle bioaerosol mass spectrometry (BAMS) for the analysis of exhaled aerosol particles or droplets as well as breath samplers integrated with gas chromatography mass spectrometry (GC-MS) or MEMS-based differential mobility spectrometry (DMS). We describe these techniques and present recent data obtained from human breath or breath condensate, in particular, addressing the question of how environmental exposure influences the composition of breath.

Frank, M; Farquar, G; Adams, K; Bogan, M; Martin, A; Benner, H; Spadaccini, C; Steele, P; Davis, C; Loyola, B; Morgan, J; Sankaran, S

2007-07-09T23:59:59.000Z

477

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

SciTech Connect

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

Mohamed Abdelrahman; Kenneth Currie

2010-12-22T23:59:59.000Z

478

The Liverpool Telescope Automatic Pipeline for Real-time GRB Afterglow Detection  

E-Print Network (OSTI)

The 2-m robotic Liverpool Telescope (LT) is ideally suited to the rapid follow-up of unpredictable and transient events such as GRBs. Our GRB follow-up strategy is designed to identify optical/IR counterparts in real time; it involves the automatic triggering of initial observations, on receipt of an alert from Gamma Ray Observatories HETE-2, INTEGRAL and Swift, followed by automated data reduction, analysis, OT identification and subsequent observing mode choice. The lack of human intervention in this process requires robustness at all stages of the procedure. Here we describe the telescope, its instrumentation and GRB pipeline.

A. Gomboc; A. Monfardini; C. Guidorzi; C. G. Mundell; C. J. Mottram; S. N. Fraser; R. J. Smith; I. A. Steele; D. Carter; M. F. Bode; A. M. Newsam

2005-02-24T23:59:59.000Z

479

UTSA's SmartLiving Campus: A Real Time Approach to America's Future  

E-Print Network (OSTI)

UTSA SmartLiving CampusA Real-Time Approach to Americas Future ESL-KT-13-12-22 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 Energy efficiency and conservation are two cost-effective, yet often...-12-22 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 SOURCE: 2003 CBECS Nationwide: 98% of Bldgs <100K SF Commercial Buildings ESL-KT-13-12-22 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio...

Gomez, J.

2013-01-01T23:59:59.000Z

480

Real-time control and monitoring system for LIPI's Public Cluster  

E-Print Network (OSTI)

We have developed a monitoring and control system for LIPI's Public Cluster. The system consists of microcontrollers and full web-based user interfaces for daily operation. It is argued that, due to its special natures, the cluster requires fully dedicated and self developed control and monitoring system. We discuss the implementation of using parallel port and dedicated micro-controller for this purpose. We also show that integrating such systems enables an autonomous control system based on the real time monitoring, for instance an autonomous power supply control based on the actual temperature, etc.

Firmansyah, I; Hadiyanto,; Handoko, L T

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "real time feedback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Real-Time Track Prediction of Tropical Cyclones over the North Indian Ocean Using the ARW Model  

E-Print Network (OSTI)

Real-Time Track Prediction of Tropical Cyclones over the North Indian Ocean Using the ARW Model of Technology Bhubaneswar, Odisha, India A. ROUTRAY National Centre for Medium Range Weather Forecasting, Noida The performance of the Advanced Research version of the Weather Research and Forecasting (ARW) model in real

482

VIRTUAL MACHINES FOR MESSAGE BASED, REAL-TIME AND INTERACTIVE SIMULATION Department of Industrial and Systems Engineering  

E-Print Network (OSTI)

VIRTUAL MACHINES FOR MESSAGE BASED, REAL-TIME AND INTERACTIVE SIMULATION Hansoo Kim Chen Zhou machine interacts with the material handling system, personnel and cell or shop floor controller in real software tools that are not designed to explicitly model machine interactions. In this research, we develop

483

Real-time linear response for time-dependent density-functional theory Department of Physical Chemistry and the Lise Meitner Minerva-Center for Quantum Chemistry,  

E-Print Network (OSTI)

Real-time linear response for time-dependent density-functional theory Roi Baer Department a linear-response approach for time-dependent density-functional theories using time-adiabatic functionals ground state. This ground state can be treated using density-functional theory, where the density n0(r) 2

Baer, Roi

484

Real-time curvature and optical spectroscopy monitoring of magnetron-sputtered \\{WTi\\} alloy thin films  

Science Journals Connector (OSTI)

Abstract \\{WTi\\} thin films are known as potential adhesion promoters and diffusion barriers. \\{WTi\\} thin films were deposited by magnetron sputtering from an alloyed target (W:Ti~70:30at.%). Real-time surface differential reflectance (SDR) spectroscopy and wafer-curvature measurements were performed during deposition to study the growth and the film continuity threshold. SDR measurements during \\{WTi\\} deposition allow the determination of the change in reflectivity of p-polarized light (at Si substrate Brewster's angle) between \\{WTi\\} film and Si substrate in order to monitor layer growth. The comparison between experimental and simulated \\{WTi\\} SDR signals assuming a homogeneous and continuous layer growth shows that film continuity is ensured beyond a thickness of 4.50.2nm. Real-time wafer-curvature measurements allow the determination of the intrinsic stress development in the film. Two regimes are noticed during the growth up to the development of a compressive steady state stress. The early stages of growth are rather complicated and divided into sub-regimes with similar boundaries revealed by both in situ techniques. Deposition of an interfacial continuous layer different from \\{WTi\\} bulk is suggested by both in situ techniques below a thickness of 4.5nm.

A. Le Priol; L. Simonot; G. Abadias; P. Gurin; P.-O. Renault; E. Le Bourhis

2013-01-01T23:59:59.000Z

485

Applications of radioactive tracer technology in the real-time measurement of wear and corrosion  

Science Journals Connector (OSTI)

Radioactive tracer technology has been used for many years as a tool to make highly sensitive real-time measurements of wear and corrosion. With this technique, the material of interest is tagged with radioactive isotopes through either direct activation of a relatively small number of atoms in the component itself, or implantation of radioactive isotopes. As the component wears or corrodes under test, radioactive atoms are transported from the surface in the form of wear particles or corrosion products. Wear or corrosion is measured in real-time through either interrogation of the buildup of radioactivity in the transport fluid, or by the reduction in activity of the labeled wear component. The process involves selection of an appropriate labeling technique, labeling of a component or components of interest, calibration, testing and data reduction and analysis. Although the majority of the work performed has been in the automotive engine and lubricant industry, Southwest Research Institute has recently extended the application into other fields, such as hydraulic pump wear, prosthetic hip joint wear, wear in marine engines and crude oil corrosivity. This paper discusses the various techniques employed to label components of interest, the advantages of the techniques, and gives several examples of current applications of this technology.

D.C. Eberle; C.M. Wall; M.B. Treuhaft

2005-01-01T23:59:59.000Z

486

A robust approach to battery fuel gauging, part I: Real time model identification  

Science Journals Connector (OSTI)

Abstract In this paper, the first of a series of papers on battery fuel gauge (BFG), we present a real time parameter estimation strategy for robust state of charge (SOC) tracking. The proposed parameter estimation scheme has the following novel features: it models hysteresis as an error in the open circuit voltage (OCV) and employs a combination of real time, linear parameter estimation and SOC tracking technique to compensate for it. This obviates the need for modeling of hysteresis as a function of SOC and load current. We identify the presence of correlated noise that has been so far ignored in the literature and use it to enhance the accuracy of model identification. As a departure from the conventional one model fits all strategy, we identify four different equivalent models of the battery that represent four modes of typical battery operation and develop the framework for seamless SOC tracking by switching. The proposed parameter approach enables a robust initialization/re-initialization strategy for continuous operation of the BFG. The performance of the online parameter estimation scheme was first evaluated through simulated data. Then, the proposed algorithm was validated using hardware-in-the-loop (HIL) data collected from commercially available Li-ion batteries.

B. Balasingam; G.V. Avvari; B. Pattipati; K.R. Pattipati; Y. Bar-Shalom

2014-01-01T23:59:59.000Z

487

A robust approach to battery fuel gauging, part II: Real time capacity estimation  

Science Journals Connector (OSTI)

Abstract In this paper, the second of a series on battery fuel gauging, we present an approach for real time capacity estimation. In part I of this series, we presented a real time parameter estimation approach for various battery equivalent models. The proposed capacity estimation scheme has the following novel features: it employes total least squares (TLS) estimation in order to account for uncertainties in both model and the observations in capacity estimation. The TLS method can adaptively track changes in battery capacity. We propose a second approach to estimate battery capacity by exploiting reststates in the battery. This approach is devised to minimize the effect of hysteresis in capacity estimation. Finally, we propose a novel approach for optimally fusing capacity estimates obtained through different methods. Then, the proposed algorithm was validated using hardware-in-the-loop (HIL) data collected from commercially available Li-ion batteries. The proposed approach performs within 1% or better accuracy in terms of capacity estimation based on both simulated as well as HIL evaluations.

B. Balasingam; G.V. Avvari; B. Pattipati; K.R. Pattipati; Y. Bar-Shalom

2014-01-01T23:59:59.000Z

488

FPGA Based Real-time Network Traffic Analysis using Traffic Dispersion Patterns  

SciTech Connect

The problem of Network Traffic Classification (NTC) has attracted significant amount of interest in the research community, offering a wide range of solutions at various levels. The core challenge is in addressing high amounts of traffic diversity found in today's networks. The problem becomes more challenging if a quick detection is required as in the case of identifying malicious network behavior or new applications like peer-to-peer traffic that have potential to quickly throttle the network bandwidth or cause significant damage. Recently, Traffic Dispersion Graphs (TDGs) have been introduced as a viable candidate for NTC. The TDGs work by forming a network wide communication graphs that embed characteristic patterns of underlying network applications. However, these patterns need to be quickly evaluated for mounting real-time response against them. This paper addresses these concerns and presents a novel solution for real-time analysis of Traffic Dispersion Metrics (TDMs) in the TDGs. We evaluate the dispersion metrics of interest and present a dedicated solution on an FPGA for their analysis. We also present analytical measures and empirically evaluate operating effectiveness of our design. The mapped design on Virtex-5 device can process 7.4 million packets/second for a TDG comprising of 10k flows at very high accuracies of over 96%.

Khan, F; Gokhale, M; Chuah, C N

2010-03-26T23:59:59.000Z

489

Real-time 3-D SAFT-UT system evaluation and validation  

SciTech Connect

SAFT-UT technology is shown to provide significant enhancements to the inspection of materials used in US nuclear power plants. This report provides guidelines for the implementation of SAFT-UT technology and shows the results from its application. An overview of the development of SAFT-UT is provided so that the reader may become familiar with the technology. Then the basic fundamentals are presented with an extensive list of references. A comprehensive operating procedure, which is used in conjunction with the SAFT-UT field system developed by Pacific Northwest Laboratory (PNL), provides the recipe for both SAFT data acquisition and analysis. The specification for the hardware implementation is provided for the SAFT-UT system along with a description of the subsequent developments and improvements. One development of technical interest is the SAFT real time processor. Performance of the real-time processor is impressive and comparison is made of this dedicated parallel processor to a conventional computer and to the newer high-speed computer architectures designed for image processing. Descriptions of other improvements, including a robotic scanner, are provided. Laboratory parametric and application studies, performed by PNL and not previously reported, are discussed followed by a section on field application work in which SAFT was used during inservice inspections of operating reactors.

Doctor, S.R.; Schuster, G.J.; Reid, L.D.; Hall, T.E. [Pacific Northwest National Lab., Richland, WA (United States)

1996-09-01T23:59:59.000Z

490

Automated real-time detection of defects during machining of ceramics  

DOE Patents (OSTI)

Apparatus for the automated real-time detection and classification of defects during the machining of ceramic components employs an elastic optical scattering technique using polarized laser light. A ceramic specimen is continuously moved while being machined. Polarized laser light is directed onto the ceramic specimen surface at a fixed position just aft of the machining tool for examination of the newly machined surface. Any foreign material near the location of the laser light on the ceramic specimen is cleared by an air blast. As the specimen is moved, its surface is continuously scanned by the polarized laser light beam to provide a two-dimensional image presented in real-time on a video display unit, with the motion of the ceramic specimen synchronized with the data acquisition speed. By storing known ``feature masks`` representing various surface and sub-surface defects and comparing measured defects with the stored feature masks, detected defects may be automatically characterized. Using multiple detectors, various types of defects may be detected and classified. 14 figs.

Ellingson, W.A.; Sun, J.

1997-11-18T23:59:59.000Z

491

Automated real-time detection of defects during machining of ceramics  

DOE Patents (OSTI)

Apparatus for the automated real-time detection and classification of defects during the machining of ceramic components employs an elastic optical scattering technique using polarized laser light. A ceramic specimen is continuously moved while being machined. Polarized laser light is directed onto the ceramic specimen surface at a fixed position just aft of the machining tool for examination of the newly machined surface. Any foreign material near the location of the laser light on the ceramic specimen is cleared by an air blast. As the specimen is moved, its surface is continuously scanned by the polarized laser light beam to provide a two-dimensional image presented in real-time on a video display unit, with the motion of the ceramic specimen synchronized with the data acquisition speed. By storing known "feature masks" representing various surface and sub-surface defects and comparing measured defects with the stored feature masks, detected defects may be automatically characterized. Using multiple detectors, various types of defects may be detected and classified.

Ellingson, William A. (Naperville, IL); Sun, Jiangang (Westmont, IL)

1997-01-01T23:59:59.000Z

492

Real-time Vehicle Detection and Tracking Using Stereo Vision and Multi-View T. Kowsari S.S. Beauchemin J. Cho  

E-Print Network (OSTI)

Abstract We propose a multi-layer, real-time vehicle detection and tracking system using stereo vision-time, if at all possible. This contribution proposes a real-time, multi-layer vehicle detection system usingReal-time Vehicle Detection and Tracking Using Stereo Vision and Multi-View AdaBoost T. Kowsari S

Beauchemin, Steven S.

493

Real-time reflectance-difference spectroscopy of GaAs molecular beam epitaxy homoepitaxial growth  

SciTech Connect

We report on real time-resolved Reflectance-difference (RD) spectroscopy of GaAs(001) grown by molecular beam epitaxy, with a time-resolution of 500ms per spectrum within the 2.34.0 eV photon energy range. Through the analysis of transient RD spectra we demonstrated that RD line shapes are comprised of two components with different physical origins and determined their evolution during growth. Such components were ascribed to the subsurface strain induced by surface reconstruction and to surface stoichiometry. Results reported in this paper render RD spectroscopy as a powerful tool for the study of fundamental processes during the epitaxial growth of zincblende semiconductors.

Lastras-Martnez, A., E-mail: alm@cactus.iico.uaslp.mx, E-mail: alastras@gmail.com; Ortega-Gallegos, J.; Guevara-Macas, L. E.; Nuez-Olvera, O.; Balderas-Navarro, R. E.; Lastras-Martnez, L. F. [Instituto de Investigacin en Comunicacin Optica, Universidad Autnoma de San Luis Potos, Alvaro Obregn 64, San Luis Potos, SLP 78000 (Mexico); Lastras-Montao, L. A. [IBM T. J. Watson Research Center, Yorktown Heights, New York 10598 (United States); Lastras-Montao, M. A. [Department of Electrical and Computer Engineering, University of California, Santa Barbara, Santa Barbara, California 93106 (United States)

2014-03-01T23:59:59.000Z

494

Science and Technology of BOREXINO: A Real Time Detector for Low Energy Solar Neutrinos SOLAR NEUTRINOS  

E-Print Network (OSTI)

BOREXINO, a real-time device for low energy neutrino spectroscopy is nearing completion of construction in the underground laboratories at Gran Sasso, Italy (LNGS). The experiment's goal is the direct measurement of the flux of 7Be solar neutrinos of all flavors via neutrino-electron scattering in an ultra-pure scintillation liquid. Seeded by a series of innovations which were brought to fruition by large scale operation of a 4-ton test detector at LNGS, a new technology has been developed for BOREXINO. It enables sub-MeV solar neutrino spectroscopy for the first time. This paper describes the design of BOREXINO, the various facilities essential to its operation, its spectroscopic and background suppression capabilities and a prognosis of the impact of its results towards resolving the solar neutrino problem. BOREXINO will also address several other frontier questions in particle physics, astrophysics and geophysics.

Borexino Collaboration; G. Alimonti

2000-12-11T23:59:59.000Z

495

Non-invasive real-time imaging through scattering layers and around corners via speckle correlations  

E-Print Network (OSTI)

Imaging with optical resolution through and inside complex samples is a difficult challenge with important applications in many fields. The fundamental problem is that inhomogeneous samples, such as biological tissues, randomly scatter and diffuse light, impeding conventional image formation. Despite many advancements, no current method enables to noninvasively image in real-time using diffused light. Here, we show that owing to the memory-effect for speckle correlations, a single image of the scattered light, captured with a standard high-resolution camera, encodes all the information that is required to image through the medium or around a corner. We experimentally demonstrate single-shot imaging through scattering media and around corners using incoherent light and various samples, from white paint to dynamic biological samples. Our lensless technique is simple, does not require laser sources, wavefront-shaping, nor time-gated detection, and is realized here using a camera-phone. It has the potential to en...

Katz, Ori; Fink, Mathias; Gigan, Sylvain

2014-01-01T23:59:59.000Z

496

Vehicle Technologies Office Merit Review 2014: Real-time Metrology for Li-ion Battery R&D and Manufacturing  

Energy.gov (U.S. Department of Energy (DOE))

Presentation given by Applied Spectra, Inc at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about real-time metrology for...

497

Real-time Model and Simulation of Combustion System in a 440t/h CFB Boiler  

Science Journals Connector (OSTI)

A real-time simulation model for a 440t/h circulating fluidized bed (CFB) is presented. The dynamic mathematical model ... predict the static and dynamic characters of the CFB boiler, on the basis of principle an...

Xiaolong Gou; Zhiheng Zhang

2007-01-01T23:59:59.000Z

498

The measurement of charge for induction-based fluidic MALDI dispense event and nanoliter volume verification in real time  

Science Journals Connector (OSTI)

This study preliminarily investigates whether nanoliter volumes of concentrated polar liquids and organic monomers launched to targets using induction based fluidics (IBF) can be verified through the real time...

Brent Hilker; Kevin J. Clifford

2009-06-01T23:59:59.000Z

499

RLP : Enhanced QoS Support for Real-Time Applications Audrey Marchand and Maryline Silly-Chetto, member IEEE  

E-Print Network (OSTI)

RLP : Enhanced QoS Support for Real-Time Applications Audrey Marchand and Maryline Silly 03 France Email: {audrey.marchand, maryline.chetto}@univ-nantes.fr Abstract In this paper, we study

Marchand, Audrey

500

A New Energy-Aware Dynamic Task Set Partitioning Algorithm for Soft and Hard Embedded Real-Time Systems  

Science Journals Connector (OSTI)

......2010) Performance and energy aware cluster-level scheduling...S. (2007) Managing Energy-Performance Tradeoffs...213224. ACM Press, New York, NY, USA. [41] Wei...and Hung, S. (2010) Energy- Efficient Real-Time......

Jos Luis March; Julio Sahuquillo; Houcine Hassan; Salvador Petit; Jos Duato

2011-08-01T23:59:59.000Z