National Library of Energy BETA

Sample records for hughes network systems

  1. The Challenge of Greening Energy Systems1 Alain Joseph and Larry Hughes

    E-Print Network [OSTI]

    Hughes, Larry

    ERG2006/11 The Challenge of Greening Energy Systems1 Alain Joseph and Larry Hughes Energy Research at the second International Green Energy Conference (IGEC) held at the University of Ontario Institute of Technology in June 2006 #12;Joseph and Hughes: The Challenge of Greening Energy Systems 1 Abstract Human

  2. Joseph Hughes

    Broader source: Energy.gov [DOE]

    Joseph Hughes is a Project Officer with the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy.

  3. ENGINEERING HOWARD R. HUGHES

    E-Print Network [OSTI]

    Hemmers, Oliver

    ENGINEERING College of HOWARD R. HUGHES HigHligHts At the Howard R. Hughes College of Engineering is an integral part of engineering studies, we also provide students with a superb technical education and strong of Energy Solar Decathlon 2013. Engineering and architecture students will design then build and operate

  4. Kennedy, Hugh by Ronan Keane

    E-Print Network [OSTI]

    Kennedy, Hugh by Ronan Keane Kennedy, Hugh (1879­1936), first attorney general and chief justice of the Irish Free State, was born 11 July 1879 in Dublin, eldest among five children of Hugh Boyle Kennedy (d Kennedy (née Kennedy; not related), from Co. Tipperary. Education Kennedy's father was a fluent Irish

  5. Comments of Hughes Network Systems, LLC and Inmarsat Inc. | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p aDepartment of EnergyofDepartment ofCrow Wing Power onDEA

  6. Future world oil production: Growth, plateau, or peak?1 Larry Hughes and Jacinda Rudolph

    E-Print Network [OSTI]

    Hughes, Larry

    ERG/201005 Future world oil production: Growth, plateau, or peak?1 Larry Hughes and Jacinda Rudolph Energy Systems 2010 #12;Future world oil production: Growth, plateau, or peak? Larry Hughes2 and Jacinda Scotia, Canada Abstract With the exception of two oil shocks in the 1970s, world oil production

  7. Solar for Mining Hugh Rudnick

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    Solar for Mining Hugh Rudnick Professor Pontificia Universidad Católica de Chile #12;Solar Energy in Mining · Solar energy is becoming affordable · Attractive potential use for mining purposes · Must solve the storage requirement to increase its participation worldwide #12;Solar Energy in Mining · Electrical Energy

  8. Hugh Rudnick California Crisis Influences

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    Hugh Rudnick California Crisis Influences Further Reforms in Latin America The electric energy in 1994, and the Central American countries in 1997. Brazil also joined the group, and Venezuela, Mexico, education and health, creating competitive energy mar- kets to incorporate the private sector was seen

  9. Hugh Chen | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPLforLDRD Report11,SecurityHome solarEnergyHugh Chen - Deputy Director for

  10. Network Operating Systems Partha Dasgupta

    E-Print Network [OSTI]

    Dasgupta, Partha

    Network Operating Systems Partha Dasgupta Department of Computer Science and Engineering Arizona of Electrical Engineering] 1. Introduction Network Operating Systems extend the facilities and services provided by computer operating systems to support a set of computers, connected by a network. The environment managed

  11. Views of wireless network systems.

    SciTech Connect (OSTI)

    Young, William Frederick; Duggan, David Patrick

    2003-10-01

    Wireless networking is becoming a common element of industrial, corporate, and home networks. Commercial wireless network systems have become reliable, while the cost of these solutions has become more affordable than equivalent wired network solutions. The security risks of wireless systems are higher than wired and have not been studied in depth. This report starts to bring together information on wireless architectures and their connection to wired networks. We detail information contained on the many different views of a wireless network system. The method of using multiple views of a system to assist in the determination of vulnerabilities comes from the Information Design Assurance Red Team (IDART{trademark}) Methodology of system analysis developed at Sandia National Laboratories.

  12. Computer Systems Network Programming"

    E-Print Network [OSTI]

    /out of the house! Socket as an Application Programming Interface! n Supports the creation of network applications (e.g., render a Web page)! Close the socket! ­ 12 ­! Servers Differ From Clients" Passive open! n

  13. Langston Hughes Elementary School Renewable Energy

    E-Print Network [OSTI]

    efficiency into construction or renovation planning, can be found in Building Energy-Efficient Schools in New1 Langston Hughes Elementary School Reversed White Renewable Energy Energy Efficiency & Renewable Energy Energy Efficiency & Renewable Energy Building Energy-Efficient Schools in New Orleans Lessons

  14. Energy Security in Nova Scotia Larry Hughes

    E-Print Network [OSTI]

    Hughes, Larry

    of energy) PV ­ Photovoltaic (usually solar panels that generate electricity from the sun) RES ­ RenewableERG/200703 Energy Security in Nova Scotia Larry Hughes Energy Research Group Department: Energy Security in Nova Scotia 1 Glossary b/d ­ barrels per day BCF ­ Billion Cubic Feet CAPP ­ Canadian

  15. On Cyber Security for Networked Control Systems

    E-Print Network [OSTI]

    Amin, Saurabh

    2011-01-01

    Attacks Against Water SCADA Systems . . . . . . . . . .2 d (bottom) [simulated results]. . Gignac SCADA supervisoryGignac canal network and SCADA system . . . . . . . . .

  16. Quasiperiodic AlGaAs superlattices for neuromorphic networks and nonlinear control systems

    E-Print Network [OSTI]

    K. V. Malyshev

    2015-02-08

    The application of quasiperiodic AlGaAs superlattices as a nonlinear element of the FitzHugh-Nagumo neuromorphic network is proposed and theoretically investigated on the example of Fibonacci and figurate superlattices. The sequences of symbols for the figurate superlattices were produced by decomposition of the Fibonacci superlattices' symbolic sequences. A length of each segment of the decomposition was equal to the corresponding figurate number. It is shown that a nonlinear network based upon Fibonacci and figurate superlattices provides better parallel filtration of a half-tone picture than a network based upon traditional diodes which have cubic voltage-current characteristics. It was found that the figurate superlattice F011(1) as a nonlinear network's element provides the filtration error almost twice less than the conventional "cubic" diode. These advantages are explained by a wavelike shape of the decreasing part of the quasiperiodic superlattice's voltage-current characteristic, which leads to multistability of the network's cell. This multistability promises new interesting nonlinear dynamical phenomena. A variety of wavy forms of voltage-current characteristics opens up new interesting possibilities for quasiperiodic superlattices and especially for figurate superlattices in many areas - from nervous system modeling to nonlinear control systems development

  17. Photovoltaic Systems Interconnected onto Secondary Network Distribution Systems – Success Stories

    Broader source: Energy.gov [DOE]

    This report examines six case studies of photovoltaic (PV) systems integrated into secondary network systems. The six PV systems were chosen for evaluation because they are interconnected to secondary network systems located in four major Solar America Cities.

  18. Aircraft System Identification Using Artificial Neural Networks

    E-Print Network [OSTI]

    Valasek, John

    Aircraft System Identification Using Artificial Neural Networks Kenton Kirkpatrick Jim May Jr. John Networks 2 Artificial Neural Networks ANNSID Conclusions and Open Challenges #12;Motivation 3 #12;Motivating Questions Is it possible to use artificial neural networks to determine a linear model

  19. The four `R's of energy security1 Larry Hughes

    E-Print Network [OSTI]

    Hughes, Larry

    ERG/200902 The four `R's of energy security1 Larry Hughes Energy Research Group Department A slightly modified version of this paper was printed in Energy Policy, for copies, please visit http://dx.doi.org/10.1016/j.enpol.2009.02.038 #12;The four `R's of energy security Larry Hughes Energy Research Group

  20. World-Systems as Dynamic Networks

    E-Print Network [OSTI]

    White, Douglas R.

    World-Systems as Dynamic Networks Christopher Chase-Dunn Institute for Research on World-Systems on comparative world-systems for the workshop on `analyzing complex macrosystems as dynamic networks" at the Santa Fe Institute, April 29- 30, 2004. (8341 words) v. 4-22-04 1 #12;The comparative world-systems

  1. Hughes_DPP2007_slide01-09.pdf

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

    and Fusion Center American Physical Society 49th Annual Meeting of the Division of Plasma Physics Orlando, FL 14 November 2007 J.W. Hughes et al. "H-mode performance and pedestal...

  2. Control Theory of Digitally Networked Dynamic Systems

    E-Print Network [OSTI]

    Knobloch,JĂĽrgen

    Control Theory of Digitally Networked Dynamic Systems #12;Jan Lunze Editor Control Theory control technology for mobile objects. Due to this flexibility, a new challenge for control theory about networked control systems as a new area of control theory. This book gives a concise introduc

  3. Neural network based system for equipment surveillance

    DOE Patents [OSTI]

    Vilim, Richard B. (Aurora, IL); Gross, Kenneth C. (Bolingbrook, IL); Wegerich, Stephan W. (Glendale Hts., IL)

    1998-01-01

    A method and system for performing surveillance of transient signals of an industrial device to ascertain the operating state. The method and system involves the steps of reading into a memory training data, determining neural network weighting values until achieving target outputs close to the neural network output. If the target outputs are inadequate, wavelet parameters are determined to yield neural network outputs close to the desired set of target outputs and then providing signals characteristic of an industrial process and comparing the neural network output to the industrial process signals to evaluate the operating state of the industrial process.

  4. Neural network based system for equipment surveillance

    DOE Patents [OSTI]

    Vilim, R.B.; Gross, K.C.; Wegerich, S.W.

    1998-04-28

    A method and system are disclosed for performing surveillance of transient signals of an industrial device to ascertain the operating state. The method and system involves the steps of reading into a memory training data, determining neural network weighting values until achieving target outputs close to the neural network output. If the target outputs are inadequate, wavelet parameters are determined to yield neural network outputs close to the desired set of target outputs and then providing signals characteristic of an industrial process and comparing the neural network output to the industrial process signals to evaluate the operating state of the industrial process. 33 figs.

  5. Introduction Operations Management of Blood Banking Systems Blood Banking Systems Network Design Supply Chain Network

    E-Print Network [OSTI]

    Nagurney, Anna

    Introduction Operations Management of Blood Banking Systems Blood Banking Systems Network Design Supply Chain Network Operations Management and Design of A Sustainable Blood Banking System Amir Masoumi of Massachusetts Amherst #12;Introduction Operations Management of Blood Banking Systems Blood Banking Systems

  6. Decentralized Control Framework for Networked Control Systems Ahmed Elmahdi

    E-Print Network [OSTI]

    Sun, Dengfeng

    Decentralized Control Framework for Networked Control Systems Ahmed Elmahdi , Ahmad F Taha are closed through a network is defined as Decentralized Networked Control System (DNCS). In this paper, we-networked systems to the general setup of Networked Control Systems (NCS). An observer-based decentralized control

  7. WIRELESS SENSOR NETWORK BASED CONTROL SYSTEM CONCIDERING COMMUNICATION COST

    E-Print Network [OSTI]

    WIRELESS SENSOR NETWORK BASED CONTROL SYSTEM CONCIDERING COMMUNICATION COST Yutaka Iino* Takeshi for wireless sensor network based control system, minimizing communication energy consumption. Some control, wireless sensor network technology has been developed rapidly, and various applications to control system

  8. Course Information SER 234 Operating Systems and Networking

    E-Print Network [OSTI]

    · · · · · · · · · · · Course Information SER 234 Operating Systems and Networking Catalog Description Fundamentals of operating systems, process management, scheduling, and file management. Network technology, topologies, protocols, application control; network and operating system security. Credit Hours

  9. Intelligent Lighting System Using Wireless Sensor Networks

    E-Print Network [OSTI]

    Kumaar, A A Nippun; TSB, Sudarshan; 10.5121/ijasuc.2010.1402

    2011-01-01

    This paper examines the use of Wireless Sensor Networks interfaced with light fittings to allow for daylight substitution techniques to reduce energy usage in existing buildings. This creates a wire free system for existing buildings with minimal disruption and cost.

  10. On Cyber Security for Networked Control Systems

    E-Print Network [OSTI]

    Amin, Saurabh

    2011-01-01

    myths and facts behind cyber security risks for industrialJ. and Hieb, J. [2007], ‘Cyber security risk assessment forOn Cyber Security for Networked Control Systems by Saurabh

  11. Network support for system initiated checkpoints

    DOE Patents [OSTI]

    Chen, Dong; Heidelberger, Philip

    2013-01-29

    A system, method and computer program product for supporting system initiated checkpoints in parallel computing systems. The system and method generates selective control signals to perform checkpointing of system related data in presence of messaging activity associated with a user application running at the node. The checkpointing is initiated by the system such that checkpoint data of a plurality of network nodes may be obtained even in the presence of user applications running on highly parallel computers that include ongoing user messaging activity.

  12. Hugh O'Neill | Photosynthetic Antenna Research Center

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (JournalvivoHigh energyHighlandWorkshop-SummerHow is theHugh O'Neill Hugh

  13. Synchronization in networks of spatially extended systems

    SciTech Connect (OSTI)

    Filatova, Anastasiya E.; Hramov, Alexander E.; Koronovskii, Alexey A.; Boccaletti, Stefano

    2008-06-15

    Synchronization processes in networks of spatially extended dynamical systems are analytically and numerically studied. We focus on the relevant case of networks whose elements (or nodes) are spatially extended dynamical systems, with the nodes being connected with each other by scalar signals. The stability of the synchronous spatio-temporal state for a generic network is analytically assessed by means of an extension of the master stability function approach. We find an excellent agreement between the theoretical predictions and the data obtained by means of numerical calculations. The efficiency and reliability of this method is illustrated numerically with networks of beam-plasma chaotic systems (Pierce diodes). We discuss also how the revealed regularities are expected to take place in other relevant physical and biological circumstances.

  14. Solar energy and multi-storey residential buildings Larry Hughes and Tylor Wood

    E-Print Network [OSTI]

    Hughes, Larry

    ERG/200702 Solar energy and multi-storey residential buildings Larry Hughes and Tylor Wood Energy.hughes@dal.ca 26 March 2007 #12;Hughes and Wood: Solar energy and multi-storey residential buildings 1 Summary This report considers the limitations on solar energy in new, multi-storey residential buildings. In a time

  15. GDMN : An Information Management Network for Distributed Systems

    E-Print Network [OSTI]

    Sengupta, Raja

    GDMN : An Information Management Network for Distributed Systems Amit Mahajan {amahajan from the system. 1 Introduction There are many systems that produce and con- sume information at many sites distributed over large geographical areas. Battlefield networks, traffic management systems

  16. Networked control systems: a perspective from chaos

    E-Print Network [OSTI]

    Guofeng Zhang; Tongwen Chen

    2014-05-10

    In this paper, a nonlinear system aiming at reducing the signal transmission rate in a networked control system is constructed by adding nonlinear constraints to a linear feedback control system. Its stability is investigated in detail. It turns out that this nonlinear system exhibits very interesting dynamical behaviors: in addition to local stability, its trajectories may converge to a non-origin equilibrium or be periodic or just be oscillatory. Furthermore it exhibits sensitive dependence on initial conditions --- a sign of chaos. Complicated bifurcation phenomena are exhibited by this system. After that, control of the chaotic system is discussed. All these are studied under scalar cases in detail. Some difficulties involved in the study of this type of systems are analyzed. Finally an example is employed to reveal the effectiveness of the scheme in the framework of networked control systems.

  17. Trading accuracy for faster entity linking Kristy Hughes Joel Nothman

    E-Print Network [OSTI]

    Technologies University of Sydney NSW 2006, Australia {khug2372@uni.,joel.nothman@,james.r.curran@}sydney.edu.au James R. Curran Abstract Named entity linking (NEL) can be applied to documents such as financial Hughes, Joel Nothman and James R. Curran. 2014. Trading accuracy for faster named entity linking

  18. Incompatible -Complete Theories Peter Koellner and W. Hugh Woodin

    E-Print Network [OSTI]

    Koellner, Peter

    Incompatible -Complete Theories Peter Koellner and W. Hugh Woodin July 25, 2009 Abstract In 1985 ZFC + CH is -complete for 2 1. Moreover, CH is the unique 2 1-statement with this feature in the sense for other strengthenings of ZFC that have an even greater degree of -completeness. For example, one can ask

  19. John T. Groves Hugh Stott Taylor Chair of Chemistry

    E-Print Network [OSTI]

    Groves, John T.

    John T. Groves Hugh Stott Taylor Chair of Chemistry 231 New Frick Laboratory Department of Chemistry Princeton University Princeton, New Jersey 08544 Tel (609) 258-3593 E-mail: jtgroves@princeton.edu Web page: http://chemistry.princeton.edu/groves/ Professional Experience: 1988-1993 Chair, Department

  20. Design and implementation of an integrated network management system for TCP/IP-based distributed networks 

    E-Print Network [OSTI]

    Patel, Samir K.

    1993-01-01

    in designing of tools for network management. Various workstation vendors have developed such tools for their window systems, but many of the tools are not compatible for other systems. The X Window System, however, provides hardware independent and network...

  1. Networked Control Systems under Cyber Attacks with Applications to Power Networks

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    acquisition (SCADA) systems. Several cyber attacks on SCADA systems operating power networks have been reported [3], and major blackouts are due to the misuse of the SCADA systems [4]. Power networks, being

  2. Network and adaptive system of systems modeling and analysis.

    SciTech Connect (OSTI)

    Lawton, Craig R.; Campbell, James E. Dr.; Anderson, Dennis James; Eddy, John P.

    2007-05-01

    This report documents the results of an LDRD program entitled ''Network and Adaptive System of Systems Modeling and Analysis'' that was conducted during FY 2005 and FY 2006. The purpose of this study was to determine and implement ways to incorporate network communications modeling into existing System of Systems (SoS) modeling capabilities. Current SoS modeling, particularly for the Future Combat Systems (FCS) program, is conducted under the assumption that communication between the various systems is always possible and occurs instantaneously. A more realistic representation of these communications allows for better, more accurate simulation results. The current approach to meeting this objective has been to use existing capabilities to model network hardware reliability and adding capabilities to use that information to model the impact on the sustainment supply chain and operational availability.

  3. Policy Management for Networked Systems and Applications

    E-Print Network [OSTI]

    Lee, Kang-Won

    Policy Management for Networked Systems and Applications Dakshi Agrawal, Seraphin Calo, James Giles {agrawal,scalo,gilesjam,kangwon,dverma}@us.ibm.com Abstract In this paper, we present a novel policy and administrative domains. The proposed policy middleware provides a standard infrastructure for the creation

  4. high-performance computing networked embedded systems

    E-Print Network [OSTI]

    Kareem, Ahsan

    generation of urban structures? Modeling technologies have changed over the years, but cityscapes have also with the inevitable. The only argument available with an east wind is to put on your overcoat." Change is inevitable into the "east wind," they are leading the way in developing network embedded systems for research in disciplines

  5. IEEE 342 Node Low Voltage Networked Test System

    SciTech Connect (OSTI)

    Schneider, Kevin P.; Phanivong, Phillippe K.; Lacroix, Jean-Sebastian

    2014-07-31

    The IEEE Distribution Test Feeders provide a benchmark for new algorithms to the distribution analyses community. The low voltage network test feeder represents a moderate size urban system that is unbalanced and highly networked. This is the first distribution test feeder developed by the IEEE that contains unbalanced networked components. The 342 node Low Voltage Networked Test System includes many elements that may be found in a networked system: multiple 13.2kV primary feeders, network protectors, a 120/208V grid network, and multiple 277/480V spot networks. This paper presents a brief review of the history of low voltage networks and how they evolved into the modern systems. This paper will then present a description of the 342 Node IEEE Low Voltage Network Test System and power flow results.

  6. Neural Networks and Fuzzy Systems for Nonlinear Applications

    E-Print Network [OSTI]

    Wilamowski, Bogdan Maciej

    Neural Networks and Fuzzy Systems for Nonlinear Applications Bogdan M. Wilamowski Director of with methods of computational intelligence such as neural networks and fuzzy systems. The problem such as neural networks and fuzzy systems. However, developments of neural or fuzzy systems are not trivial

  7. Analysis of complex systems using neural networks

    SciTech Connect (OSTI)

    Uhrig, R.E. [Tennessee Univ., Knoxville, TN (United States). Dept. of Nuclear Engineering]|[Oak Ridge National Lab., TN (United States)

    1992-12-31

    The application of neural networks, alone or in conjunction with other advanced technologies (expert systems, fuzzy logic, and/or genetic algorithms), to some of the problems of complex engineering systems has the potential to enhance the safety, reliability, and operability of these systems. Typically, the measured variables from the systems are analog variables that must be sampled and normalized to expected peak values before they are introduced into neural networks. Often data must be processed to put it into a form more acceptable to the neural network (e.g., a fast Fourier transformation of the time-series data to produce a spectral plot of the data). Specific applications described include: (1) Diagnostics: State of the Plant (2) Hybrid System for Transient Identification, (3) Sensor Validation, (4) Plant-Wide Monitoring, (5) Monitoring of Performance and Efficiency, and (6) Analysis of Vibrations. Although specific examples described deal with nuclear power plants or their subsystems, the techniques described can be applied to a wide variety of complex engineering systems.

  8. Analysis of complex systems using neural networks

    SciTech Connect (OSTI)

    Uhrig, R.E. (Tennessee Univ., Knoxville, TN (United States). Dept. of Nuclear Engineering Oak Ridge National Lab., TN (United States))

    1992-01-01

    The application of neural networks, alone or in conjunction with other advanced technologies (expert systems, fuzzy logic, and/or genetic algorithms), to some of the problems of complex engineering systems has the potential to enhance the safety, reliability, and operability of these systems. Typically, the measured variables from the systems are analog variables that must be sampled and normalized to expected peak values before they are introduced into neural networks. Often data must be processed to put it into a form more acceptable to the neural network (e.g., a fast Fourier transformation of the time-series data to produce a spectral plot of the data). Specific applications described include: (1) Diagnostics: State of the Plant (2) Hybrid System for Transient Identification, (3) Sensor Validation, (4) Plant-Wide Monitoring, (5) Monitoring of Performance and Efficiency, and (6) Analysis of Vibrations. Although specific examples described deal with nuclear power plants or their subsystems, the techniques described can be applied to a wide variety of complex engineering systems.

  9. Gas Main Sensor and Communications Network System

    SciTech Connect (OSTI)

    Hagen Schempf

    2006-05-31

    Automatika, Inc. was contracted by the Department of Energy (DOE) and with co-funding from the Northeast Gas Association (NGA), to develop an in-pipe natural gas prototype measurement and wireless communications system for assessing and monitoring distribution networks. This projected was completed in April 2006, and culminated in the installation of more than 2 dozen GasNet nodes in both low- and high-pressure cast-iron and steel mains owned by multiple utilities in the northeastern US. Utilities are currently logging data (off-line) and monitoring data in real time from single and multiple networked sensors over cellular networks and collecting data using wireless bluetooth PDA systems. The system was designed to be modular, using in-pipe sensor-wands capable of measuring, flow, pressure, temperature, water-content and vibration. Internal antennae allowed for the use of the pipe-internals as a waveguide for setting up a sensor network to collect data from multiple nodes simultaneously. Sensor nodes were designed to be installed with low- and no-blow techniques and tools. Using a multi-drop bus technique with a custom protocol, all electronics were designed to be buriable and allow for on-board data-collection (SD-card), wireless relaying and cellular network forwarding. Installation options afforded by the design included direct-burial and external polemounted variants. Power was provided by one or more batteries, direct AC-power (Class I Div.2) and solar-array. The utilities are currently in a data-collection phase and intend to use the collected (and processed) data to make capital improvement decisions, compare it to Stoner model predictions and evaluate the use of such a system for future expansion, technology-improvement and commercialization starting later in 2006.

  10. Energy Mobility Network : system design, interfaces, and future interactions

    E-Print Network [OSTI]

    Cheung, Natalie Wen Yua

    2011-01-01

    The Energy Mobility Network is a mobile, networked energy production, consumption and sharing system that is designed to motivate users to be more aware of their energy consumption. In particular, the system provides a ...

  11. Computer System, Cluster and Networking Summer Institute (CSCNSI...

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

    in setting up, configuring, administering, testing, monitoring, and scheduling computer systems, supercomputer clusters, and computer networks through a variety of...

  12. Cluster synchronization in networks of neurons with chemical synapses

    SciTech Connect (OSTI)

    Juang, Jonq, E-mail: jjuang@math.nctu.edu.tw [Department of Applied Mathematics, and Center of Mathematics Modeling and Scientific Computing, National Chiao Tung University, Hsinchu, Taiwan and National Center for Theoretical Sciences, Hsinchu, Taiwan (China)] [Department of Applied Mathematics, and Center of Mathematics Modeling and Scientific Computing, National Chiao Tung University, Hsinchu, Taiwan and National Center for Theoretical Sciences, Hsinchu, Taiwan (China); Liang, Yu-Hao, E-mail: moonsea.am96g@g2.nctu.edu.tw [Department of Mathematics, National Tsing Hua University, Hsinchu, Taiwan (China)] [Department of Mathematics, National Tsing Hua University, Hsinchu, Taiwan (China)

    2014-03-15

    In this work, we study the cluster synchronization of chemically coupled and generally formulated networks which are allowed to be nonidentical. The sufficient condition for the existence of stably synchronous clusters is derived. Specifically, we only need to check the stability of the origins of m decoupled linear systems. Here, m is the number of subpopulations. Examples of nonidentical networks such as Hindmarsh-Rose (HR) neurons with various choices of parameters in different subpopulations, or HR neurons in one subpopulation and FitzHugh-Nagumo neurons in the other subpopulation are provided. Explicit threshold for the coupling strength that guarantees the stably cluster synchronization can be obtained.

  13. System restoration of a transmission network

    SciTech Connect (OSTI)

    Ebert, A.; Eppel, M.; Genthe, S.; Schwarzjirg, H.; Stark, J.; Werner, W. [Bayernwerke AG, Karlsfeld (Germany); [Siemens AG, Wien (Austria)

    1995-12-31

    In a large SCADA/EMS-System an Expertsystem for Fault Diagnosis and for System Restoration is integrated. The System Restoration covered by the Expertsystem gives assistance to the operator in any kind of blackout by presenting restoration plans. In case any number of busbars is outaged the system automatically determines the affected network areas and thereby the magnitude of the whole blackout. The restoration of the network is done in phases depending on the kind of blackout and is based on a global utility-strategy-plan. Within this scheme the detailed restoration plan is determined dynamically based on the actual situation and some predefinitions such as load priorities and power plants to be reenergized with priority. The described system covers all cases of blackouts by evaluating a plan based on the individual case. The Expertsystem is a hybrid system using an optimal power flow, too, and is fully integrated in the SCADA/EMS system. The plans of each phase are presented via the common MMI to the operator and supervised due to execution. The system distinguishes between operator wanted deviations and unwanted deviations during execution. Thus the operator at any time can continue as he likes.

  14. Research and Implementation of Computer Simulation System for Neural Networks

    E-Print Network [OSTI]

    Byrne, John H.

    Research and Implementation of Computer Simulation System for Neural Networks Chen, Houjin Yuan: The ability of a neural network to process information and to generate a specific pattern of electrical computer simulation system for neural networks was designed and implemented including system architecture

  15. Distributed Control of Networked Dynamical Systems: Static Feedback,

    E-Print Network [OSTI]

    Dimarogonas, Dimos

    1 Distributed Control of Networked Dynamical Systems: Static Feedback, Integral Action--This paper analyzes distributed control protocols for first- and second-order networked dynamical systems. We systems. The PI controllers successfully attenuate constant disturbances in the network. We prove

  16. Neural Networks in Control Systems Theever-increasingtechnologicalde-

    E-Print Network [OSTI]

    Antsaklis, Panos

    Neural Networks in Control Systems Theever-increasingtechnologicalde- mands of ourmodem society require inno- vative approaches to highly demanding con- trol problems. Artificial neural networks, the controlcommunity has heardof neural networks and wonders if these networks can be used to provide better control

  17. System and method for networking electrochemical devices

    DOE Patents [OSTI]

    Williams, Mark C. (Morgantown, WV); Wimer, John G. (Morgantown, WV); Archer, David H. (Pittsburgh, PA)

    1995-01-01

    An improved electrochemically active system and method including a plurality of electrochemical devices, such as fuel cells and fluid separation devices, in which the anode and cathode process-fluid flow chambers are connected in fluid-flow arrangements so that the operating parameters of each of said plurality of electrochemical devices which are dependent upon process-fluid parameters may be individually controlled to provide improved operating efficiency. The improvements in operation include improved power efficiency and improved fuel utilization in fuel cell power generating systems and reduced power consumption in fluid separation devices and the like through interstage process fluid parameter control for series networked electrochemical devices. The improved networking method includes recycling of various process flows to enhance the overall control scheme.

  18. TRANSMISSION OPEN ACCESS IN CHILE Hugh Rudnick

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    considered or are considering deregulating their electric power sectors to allow for competition among implemented in Chilean electric power systems, the incorporation of an open access scheme, the application conditions in interconnected power systems. One line of thinking has viewed the third party use

  19. FIA-12-0010- In the Matter of Hughes Socol Piers Resnick DYM, Ltd.

    Broader source: Energy.gov [DOE]

    Hughes Socol Piers Resnick DYM, Ltd. (Hughes Socol) appealed a determination issued to it on February 15, 2012, by the Chicago Office of the Department of Energy (DOE). The Chicago Office had responded to a request that Hughes Socol had filed under the Freedom of Information Act (FOIA), 5 U.S.C. § 552, as implemented by the DOE in 10 C.F.R. Part 1004. The Chicago Office had identified eight responsive documents, but it withheld them under FOIA Exemption 4. This appeal, if granted, would require the Chicago Office to release the withheld information to Hughes Socol.

  20. Pathways, Networks and Systems Medicine Conferences

    SciTech Connect (OSTI)

    Nadeau, Joseph H.

    2013-11-25

    The 6th Pathways, Networks and Systems Medicine Conference was held at the Minoa Palace Conference Center, Chania, Crete, Greece (16-21 June 2008). The Organizing Committee was composed of Joe Nadeau (CWRU, Cleveland), Rudi Balling (German Research Centre, Brauschweig), David Galas (Institute for Systems Biology, Seattle), Lee Hood (Institute for Systems Biology, Seattle), Diane Isonaka (Seattle), Fotis Kafatos (Imperial College, London), John Lambris (Univ. Pennsylvania, Philadelphia),Harris Lewin (Univ. of Indiana, Urbana-Champaign), Edison Liu (Genome Institute of Singapore, Singapore), and Shankar Subramaniam (Univ. California, San Diego). A total of 101 individuals from 21 countries participated in the conference: USA (48), Canada (5), France (5), Austria (4), Germany (3), Italy (3), UK (3), Greece (2), New Zealand (2), Singapore (2), Argentina (1), Australia (1), Cuba (1), Denmark (1), Japan (1), Mexico (1), Netherlands (1), Spain (1), Sweden (1), Switzerland (1). With respect to speakers, 29 were established faculty members and 13 were graduate students or postdoctoral fellows. With respect to gender representation, among speakers, 13 were female and 28 were male, and among all participants 43 were female and 58 were male. Program these included the following topics: Cancer Pathways and Networks (Day 1), Metabolic Disease Networks (Day 2), Day 3 ? Organs, Pathways and Stem Cells (Day 3), and Day 4 ? Inflammation, Immunity, Microbes and the Environment (Day 4). Proceedings of the Conference were not published.

  1. Complex network synchronization of chaotic systems with delay coupling

    SciTech Connect (OSTI)

    Theesar, S. Jeeva Sathya, E-mail: sjstheesar@gmail.com; Ratnavelu, K., E-mail: sjstheesar@gmail.com [Network Science Research Group, Institute of Mathematical Sciences, University of Malaya, 50603, Kuala Lumpur (Malaysia)

    2014-03-05

    The study of complex networks enables us to understand the collective behavior of the interconnected elements and provides vast real time applications from biology to laser dynamics. In this paper, synchronization of complex network of chaotic systems has been studied. Every identical node in the complex network is assumed to be in Lur’e system form. In particular, delayed coupling has been assumed along with identical sector bounded nonlinear systems which are interconnected over network topology.

  2. V-125: Cisco Connected Grid Network Management System Multiple...

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

    System 2.x ABSTRACT: Some vulnerabilities have been reported in Cisco Connected Grid Network Management System. REFERENCE LINKS: Cisco Security Notice CVE-2013-1163 Cisco...

  3. CSP 543: Multimedia Networking Atel Puri, Tsuhan Chen, Multimedia Systems, Standards, and Networks, ISBN 082479303X

    E-Print Network [OSTI]

    Heller, Barbara

    CSP 543: Multimedia Networking Texts Atel Puri, Tsuhan Chen, Multimedia Systems, Standards Wireless 6 hours Total 45 hours Edited March 2006 (html, css checks) CSP 543: Multimedia Networking - CS

  4. Greening the Networks of Large-Scale Distributed Systems

    E-Print Network [OSTI]

    Lefčvre, Laurent

    -tier fat-tree architecture Energy savings of Green compared to No off : - 73% for a 20% workload - 68Greening the Networks of Large-Scale Distributed Systems ENS de Lyon ­ INRIA RESO ­ UCBL ­ LIP://perso.ens-lyon.fr/annececile.orgerie/networks.html HERMES : High-level Energy-awaRe Model for bandwidth reservation in End-to-end NetworkS · Unused network

  5. Prospector: Multiscale Energy Measurement of Networked Embedded Systems with Wideband

    E-Print Network [OSTI]

    of networked, distributed systems, and usually energy-constrained. Moreover, in wirelessly-networked devices, the technological and human cost of energy and replenishment of energy supplies are dominant. Wireless sensor embedded systems. With respect to energy efficiency, wireless sensor network (WSN) nodes are at the leading

  6. PageRate: Counting Web Users' Votes Jianhan Zhu, Jun Hong, John G. Hughes

    E-Print Network [OSTI]

    Zhu, Jianhan

    PageRate: Counting Web Users' Votes Jianhan Zhu, Jun Hong, John G. Hughes School of Information.hughes}@ulst.ac.uk ABSTRACT We propose a PageRate method to give Web pages on a Web site ratings based on the Web linkClustering algorithm is proposed to cluster Web pages with similar incoming links and ratings. The results are used

  7. Research on a Heat-supply Network Dispatching System Based on Geographical Information System (GIS) 

    E-Print Network [OSTI]

    Zhou, Z.; Zou, P.; Tang, H.; Fang, X.; Wang, W.

    2006-01-01

    -supply Network Dispatching System (HNDS). The system, based on Oracle database and Mapgis 6.5, compiles with Visual C++ software. With computer and communication techniques, the system dynamic inspects parameters and information of a heat-supply network, achieves...

  8. Energy Systems Network ESN | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA Jump to:of theClimateElgin,WindMap: Name: Energy SystemsNetwork ESN

  9. A Network-based System Architecture for Remote Medical Applications

    E-Print Network [OSTI]

    Jantsch, Axel

    mobile technology [1] [2] [10]. 3G communication network provides a broadband, packet-based transmissionA Network-based System Architecture for Remote Medical Applications Huimin She1, 2 1 Dept-21-5135-5286 zhoud@fudan.edu.cn ABSTRACT Nowadays, the evolution of wireless communication and network technologies

  10. in High Performance Computing Computer System, Cluster, and Networking...

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

    iSSH v. Auditd: Intrusion Detection in High Performance Computing Computer System, Cluster, and Networking Summer Institute David Karns, New Mexico State University Katy Protin,...

  11. Sensor Networks for Monitoring and Control of Water Distribution Systems

    E-Print Network [OSTI]

    Whittle, Andrew

    Water distribution systems present a significant challenge for structural monitoring. They comprise a complex network of pipelines buried underground that are relatively inaccessible. Maintaining the integrity of these ...

  12. Augmented Network Model For Engineering System Design

    E-Print Network [OSTI]

    de Weck, Olivier L.

    can have different capacities and costs, maintenance routines, dynamics. Link existence can vary design". Various fields have applied network modeling to engineering applications, such as operations, with their network description and brief discussion of simple network statistics. Then, we describe in detail one

  13. Reconfigurable Network Systems and Software-Defined Networking

    E-Print Network [OSTI]

    Zilberman, Noa; Rotsos, Charalampos; Moore, Andrew W.

    2015-06-11

    architecture. In 2008, Cisco was the first company to introduce a network processor that was fully ANSI-C compatible [56]. This approach was later followed by Ericsson [57], and most-recently by EZchip [58]. Several attempts have been made to go beyond...

  14. Energy-Efficient Surveillance System Using Wireless Sensor Networks

    E-Print Network [OSTI]

    Stankovic, John A.

    Energy-Efficient Surveillance System Using Wireless Sensor Networks Tian He, Sudha Krishnamurthy networks, is of great prac- tical importance for the military. Because of the energy constraints of sensor devices, such systems necessitate an energy-aware design to ensure the longevity of surveillance missions

  15. Electric Power System Anomaly Detection Using Neural Networks

    E-Print Network [OSTI]

    Tronci, Enrico

    to hijacking of measures, changes in the power network topology (i.e. transmission lines breaking) and unexElectric Power System Anomaly Detection Using Neural Networks Marco Martinelli1 , Enrico Tronci1. The aim of this work is to propose an approach to monitor and protect Electric Power System by learning

  16. Cyber-Security of Networked Control Systems Karl Henrik Johansson

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    7/3/12 1 Cyber-Security of Networked Control Systems Karl Henrik Johansson #12;7/3/12 2 Recent Cyber-ARacks on Control Systems Cyber-Security of Networked to cyber-threats with many poten@al points of aRacks · How

  17. Neural Network Based Intelligent Sootblowing System

    SciTech Connect (OSTI)

    Mark Rhode

    2005-04-01

    Cost effective generation of electricity is vital to the economic growth and stability of this nation. To accomplish this goal a balanced portfolio of fuel sources must be maintained and established which not only addresses the cost of conversion of these energy sources to electricity, but also does so in an efficient and environmentally sound manner. Conversion of coal as an energy source to produce steam for a variety of systems has been a cornerstone of modern industry. However, the use of coal in combustion systems has traditionally produced unacceptable levels of gaseous and particulate emissions, albeit that recent combustion, removal and mitigation techniques have drastically reduced these levels. With the combustion of coal there is always the formation and deposition of ash and slag within the boilers. This adversely affects the rate at which heat is transferred to the working fluid, which in the case of electric generators is water/steam. The fouling of the boiler leads to poor efficiencies due to the fact that heat which could normally be transferred to the working fluid remains in the flue gas stream and exits to the environment without beneficial use. This loss in efficiency translates to higher consumption of fuel for equivalent levels of electric generation; hence more gaseous emissions are also produced. Another less obvious problem exists with fouling of various sections of the boiler creating intense peak temperatures within and around the combustion zone. Total nitrogen oxides (NOx) generation is primarily a function of both ''fuel'' and ''thermal'' NOx production. Fuel NOx which generally comprises 20%-40% of the total NOx generated is predominantly influenced by the levels of oxygen present, while thermal NOx which comprises the balance is a function of temperature. As the fouling of the boiler increases and the rate of heat transfer decreases, peak temperatures increase as does the thermal NOx production. Due to the composition of coal, particulate matter is also a by-product of coal combustion. Modern day utility boilers are usually fitted with electrostatic precipitators to aid in the collection of particulate matter. Although extremely efficient, these devices are sensitive to rapid changes in inlet mass concentration as well as total mass loading. Traditionally, utility boilers are equipped with devices known as sootblowers, which use, steam, water or air to dislodge and clean the surfaces within the boiler and are operated based upon established rule or operator's judgment. Poor sootblowing regimes can influence particulate mass loading to the electrostatic precipitators. The project applied a neural network intelligent sootblowing system in conjunction with state-of-the-art controls and instruments to optimize the operation of a utility boiler and systematically control boiler slagging/fouling. This optimization process targeted reduction of NOx of 30%, improved efficiency of 2% and a reduction in opacity of 5%. The neural network system proved to be a non-invasive system which can readily be adapted to virtually any utility boiler. Specific conclusions from this neural network application are listed below. These conclusions should be used in conjunction with the specific details provided in the technical discussions of this report to develop a thorough understanding of the process.

  18. Interconnecting PV on New York City's Secondary Network Distribution System

    SciTech Connect (OSTI)

    Anderson, K.; Coddington, M.; Burman, K.; Hayter, S.; Kroposki, B.; Watson, A.

    2009-12-01

    This study describes technical assistance provided by NREL to help New York City and Con Edison improve the interconnection of distributed PV systems on a secondary network distribution system.

  19. Development of an expert system for generating optimum floorplans for VLSI circuits 

    E-Print Network [OSTI]

    Mehta, Ketan R

    1987-01-01

    in the implementation of my system is also discussed. A. CURRENT VLSI DESIGN SYSTEMS The Hughes Automated Layout System The Hughes Automated Layout System (HAL) is an example of an in-house, custom built system for the specific needs of an organization... to thank my parents and my brother for their support and encouragement throughout my study at Texas A & M University. TABLE OF CONTENTS CHAPTER Page INTRODUCTION A. CURRENT VLSI DESIGN SYSTEMS The Hughes Automated Layout System Timberwolf Placement...

  20. Techno-Orientalism with Chinese Characteristics: Maureen F. McHugh’s China Mountain Zhang

    E-Print Network [OSTI]

    Fan, Christopher T.

    2015-01-01

    china.html. ———. China Mountain Zhang. New York: Doherty,Ethnicity and Gender: China Mountain Zhang’s Transcendent2011), 285. McHugh, China Mountain Zhang, 6. Betsy Pei Chih

  1. IS PHENOTYPIC PLASTICITY ADAPTIVE? Kimberly A. Hughes, Mary H. Burleson, and F. Helen Rodd

    E-Print Network [OSTI]

    Hughes, Kim

    23 Chapter 2 IS PHENOTYPIC PLASTICITY ADAPTIVE? Kimberly A. Hughes, Mary H. Burleson, and F. Helen Rodd Keywords: adaptation, adaptationist paradigm, canalization, cost of plasticity, evolutionary, multivariate selection analysis, natural selection, optimality models, phenotypic plasticity, quantitative

  2. Systemic risk analysis in reconstructed economic and financial networks

    E-Print Network [OSTI]

    Cimini, Giulio; Gabrielli, Andrea; Garlaschelli, Diego

    2014-01-01

    The assessment of fundamental properties for economic and financial systems, such as systemic risk, is systematically hindered by privacy issues$-$that put severe limitations on the available information. Here we introduce a novel method to reconstruct partially-accessible networked systems of this kind. The method is based on the knowledge of the fitnesses, $i.e.$, intrinsic node-specific properties, and of the number of connections of only a limited subset of nodes. Such information is used to calibrate a directed configuration model which can generate ensembles of networks intended to represent the real system, so that the real network properties can be estimated within the generated ensemble in terms of mean values of the observables. Here we focus on estimating those properties that are commonly used to measure the network resilience to shock and crashes. Tests on both artificial and empirical networks shows that the method is remarkably robust with respect to the limitedness of the information available...

  3. Simulated, Emulated, and Physical Investigative Analysis (SEPIA) of networked systems.

    SciTech Connect (OSTI)

    Burton, David P.; Van Leeuwen, Brian P.; McDonald, Michael James; Onunkwo, Uzoma A.; Tarman, Thomas David; Urias, Vincent E.

    2009-09-01

    This report describes recent progress made in developing and utilizing hybrid Simulated, Emulated, and Physical Investigative Analysis (SEPIA) environments. Many organizations require advanced tools to analyze their information system's security, reliability, and resilience against cyber attack. Today's security analysis utilize real systems such as computers, network routers and other network equipment, computer emulations (e.g., virtual machines) and simulation models separately to analyze interplay between threats and safeguards. In contrast, this work developed new methods to combine these three approaches to provide integrated hybrid SEPIA environments. Our SEPIA environments enable an analyst to rapidly configure hybrid environments to pass network traffic and perform, from the outside, like real networks. This provides higher fidelity representations of key network nodes while still leveraging the scalability and cost advantages of simulation tools. The result is to rapidly produce large yet relatively low-cost multi-fidelity SEPIA networks of computers and routers that let analysts quickly investigate threats and test protection approaches.

  4. EIA - Natural Gas Pipeline Network - Network Configuration & System Design

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979Coal4Cubic43,728ConfigurationListNetwork

  5. STIMULUS: End-System Network Interface Controller for 100 Gb/s Wide Area Networks

    SciTech Connect (OSTI)

    Zarkesh-Ha, Payman

    2014-09-12

    The main goal of this research grant is to develop a system-level solution leveraging novel technologies that enable network communications at 100 Gb/s or beyond. University of New Mexico in collaboration with Acadia Optronics LLC has been working on this project to develop the 100 Gb/s Network Interface Controller (NIC) under this Department of Energy (DOE) grant.

  6. Securing against fraud in mobile communications : system design and development in 3G mobile networks

    E-Print Network [OSTI]

    Mochizuki, Yujiro, 1973-

    2006-01-01

    Network security ensures the consistency, integrity, and reliability of telecommunications systems. Authorized network access prevents fraudulent communications and maintains the availability of the systems. However, limited ...

  7. HIERARCHICAL MANAGEMENT OF BATTLEFIELD NETWORKS WITH THE SHAMAN MANAGEMENT SYSTEM

    E-Print Network [OSTI]

    Sethi, Adarshpal

    HIERARCHICAL MANAGEMENT OF BATTLEFIELD NETWORKS WITH THE SHAMAN MANAGEMENT SYSTEM Adarshpal S Architecture for MANagement) is a novel management framework developed at the University of Delaware as a part of the research in network management sponsored by the ATIRP Consortium. SHAMAN extends the traditional flat SNMP

  8. Active I/O Switches in System Area Networks Computer Systems Laboratory

    E-Print Network [OSTI]

    Heinrich, Mark

    Active I/O Switches in System Area Networks Ming Hao Computer Systems Laboratory Cornell University, FL 32816 heinrich@cs.ucf.edu Abstract We present an active switch architecture to improve the performance of systems connected via system area networks. Our programmable active switches not only flexibly

  9. Decision support systems and methods for complex networks

    DOE Patents [OSTI]

    Huang, Zhenyu (Richland, WA); Wong, Pak Chung (Richland, WA); Ma, Jian (Richland, WA); Mackey, Patrick S (Richland, WA); Chen, Yousu (Richland, WA); Schneider, Kevin P (Seattle, WA)

    2012-02-28

    Methods and systems for automated decision support in analyzing operation data from a complex network. Embodiments of the present invention utilize these algorithms and techniques not only to characterize the past and present condition of a complex network, but also to predict future conditions to help operators anticipate deteriorating and/or problem situations. In particular, embodiments of the present invention characterize network conditions from operation data using a state estimator. Contingency scenarios can then be generated based on those network conditions. For at least a portion of all of the contingency scenarios, risk indices are determined that describe the potential impact of each of those scenarios. Contingency scenarios with risk indices are presented visually as graphical representations in the context of a visual representation of the complex network. Analysis of the historical risk indices based on the graphical representations can then provide trends that allow for prediction of future network conditions.

  10. A Coordinate System for Gaussian Networks

    E-Print Network [OSTI]

    Zheng, Lizhong

    This paper investigates network information theory problems where the external noise is Gaussian distributed. In particular, the Gaussian broadcast channel with coherent fading and the Gaussian interference channel are ...

  11. The Effect of Graph Layout on Inference from Social Network Data

    E-Print Network [OSTI]

    Blythe, Jim

    The Effect of Graph Layout on Inference from Social Network Data Jim Blythe 1 and Cathleen Mc of information to be #12; Ivo Jack Ben York Earl Rick Mel Dale Robin Nan Gerry Bob Fran Walt Ovid Gary Chris Hugh

  12. Predictive Compensation for Communication Outages in Networked Control Systems

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    Predictive Compensation for Communication Outages in Networked Control Systems Erik Henriksson Henrik Sandberg Karl Henrik Johansson Abstract-- A predictive outage compensator co time instance, the predictive outage compensator suggests a replacement command based on the history

  13. Phys 597A: Graphs and Networks in Systems Biology

    E-Print Network [OSTI]

    Albert, Réka

    systems have an underlying network topology · nodes: routers, hosts · edges: wires, cables, wireless Q Q: What is the nature of edges? Internet, router level Internet, domain level #12;Map

  14. Systems and methods for modeling and analyzing networks

    DOE Patents [OSTI]

    Hill, Colin C; Church, Bruce W; McDonagh, Paul D; Khalil, Iya G; Neyarapally, Thomas A; Pitluk, Zachary W

    2013-10-29

    The systems and methods described herein utilize a probabilistic modeling framework for reverse engineering an ensemble of causal models, from data and then forward simulating the ensemble of models to analyze and predict the behavior of the network. In certain embodiments, the systems and methods described herein include data-driven techniques for developing causal models for biological networks. Causal network models include computational representations of the causal relationships between independent variables such as a compound of interest and dependent variables such as measured DNA alterations, changes in mRNA, protein, and metabolites to phenotypic readouts of efficacy and toxicity.

  15. Joint Optimization of Wireless Communication and Networked Control Systems

    E-Print Network [OSTI]

    Joint Optimization of Wireless Communication and Networked Control Systems Lin Xiao1 , Mikael. With the coding and medium access schemes of the communication system fixed, the achievable bit rates and address the problem of allocating communication re- sources to optimize system performance. We observe

  16. Remote-Controlled Home Automation Systems with Different Network Technologies

    E-Print Network [OSTI]

    Davies, John N.

    Remote-Controlled Home Automation Systems with Different Network Technologies Armando Roy Delgado into the potential for remote controlled operation of home automation systems. It considers problems, 2002) which certainly requires a careful study before developing any suitable Home Automation System

  17. Phoenix: Towards an Accurate, Practical and Decentralized Network Coordinate System

    E-Print Network [OSTI]

    Fu, Xiaoming

    Phoenix: Towards an Accurate, Practical and Decentralized Network Coordinate System Yang Chen1 systems. In this paper, we propose Phoenix, an accurate, practical and decentralized NC system. It adopts to be positive and usable. Our extensive Internet trace based simulation shows that Phoenix can achieve higher

  18. Wireless Networked Control System using IEEE 802.15.4 with GTS Najet Boughanmi

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Wireless Networked Control System using IEEE 802.15.4 with GTS Najet Boughanmi LORIA.rondeau@cran.uhp-nancy.fr Abstract In this paper, the suitability of wireless sensor networks for networked control loop is shown because of the network wires. Wireless Networked Control Systems (WNCS) are an alternative to overcome

  19. Interconnecting PV on New York City's Secondary Network Distribution System

    SciTech Connect (OSTI)

    K. Anderson; M. Coddington; K. Burman; S. Hayter; B. Kroposki; and A. Watson

    2009-11-30

    The U.S. Department of Energy (DOE) has teamed with cities across the country through the Solar America Cities (SAC) partnership program to help reduce barriers and accelerate implementation of solar energy. The New York City SAC team is a partnership between the City University of New York (CUNY), the New York City Mayor s Office of Long-term Planning and Sustainability, and the New York City Economic Development Corporation (NYCEDC).The New York City SAC team is working with DOE s National Renewable Energy Laboratory (NREL) and Con Edison, the local utility, to develop a roadmap for photovoltaic (PV) installations in the five boroughs. The city set a goal to increase its installed PV capacity from1.1 MW in 2005 to 8.1 MW by 2015 (the maximum allowed in 2005). A key barrier to reaching this goal, however, is the complexity of the interconnection process with the local utility. Unique challenges are associated with connecting distributed PV systems to secondary network distribution systems (simplified to ���¢��������networks���¢������� in this report). Although most areas of the country use simpler radial distribution systems to distribute electricity, larger metropolitan areas like New York City typically use networks to increase reliability in large load centers. Unlike the radial distribution system, where each customer receives power through a single line, a network uses a grid of interconnected lines to deliver power to each customer through several parallel circuits and sources. This redundancy improves reliability, but it also requires more complicated coordination and protection schemes that can be disrupted by energy exported from distributed PV systems. Currently, Con Edison studies each potential PV system in New York City to evaluate the system s impact on the network, but this is time consuming for utility engineers and may delay the customer s project or add cost for larger installations. City leaders would like to streamline this process to facilitate faster, simpler, and less expensive distributed PV system interconnections. To assess ways to improve the interconnection process, NREL conducted a four-part study with support from DOE. The NREL team then compiled the final reports from each study into this report. In Section 1���¢��������PV Deployment Analysis for New York City���¢��������we analyze the technical potential for rooftop PV systems in the city. This analysis evaluates potential PV power production in ten Con Edison networks of various locations and building densities (ranging from high density apartments to lower density single family homes). Next, we compare the potential power production to network loads to determine where and when PV generation is most likely to exceed network load and disrupt network protection schemes. The results of this analysis may assist Con Edison in evaluating future PV interconnection applications and in planning future network protection system upgrades. This analysis may also assist other utilities interconnecting PV systems to networks by defining a method for assessing the technical potential of PV in the network and its impact on network loads. Section 2���¢��������A Briefing for Policy Makers on Connecting PV to a Network Grid���¢��������presents an overview intended for nontechnical stakeholders. This section describes the issues associated with interconnecting PV systems to networks, along with possible solutions. Section 3���¢��������Technical Review of Concerns and Solutions to PV Interconnection in New Y

  20. Uranium hydrogeochemical and stream sediment reconnaissance of the Hughes NTMS quadrangle, Alaska

    SciTech Connect (OSTI)

    D'Andrea, R.F. Jr.; Zinkl, R.J.; Shettel, D.L. Jr.; Langfeldt, S.L.; Youngquist, C.A.

    1981-09-01

    This report presents results of a Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) of the Hughes NTMS quadrangle, Alaska. In addition to this abbreviated data release, more complete data are available to the public in machine-readable form through the Grand Junction Office Information System at Oak Ridge National Laboratory (ORNL). Presented in this data release are location data, field analyses, and laboratory analyses of several different sample media. For the sake of brevity, many field site observations have not been included in this volume. These data are, however, available on the magnetic tape. Appendices A and B describe the sample media and summarize the analytical results for each medium. The data were subdivided by one of the Los Alamos National Laboratory (LANL) sorting programs of Zinkl and others into groups of stream sediment and lake sediment samples. For each group which contains a sufficient number of observations, statistical tables, tables of raw data, and 1:1000000 scale maps of pertinent elements have been included in this report. In addition, maps showing results of multivariate statistical analyses have been included. Further information about the HSSR program in general, or about the LANL portion of the program in particular, can be obtained in quarterly or semiannual program progress reports on open-file at DOE's Technical Library in Grand Junction. Information about the field and analytical procedures used by LANL during sample collection and analysis may be found in any HSSR data release prepared by the LANL and will not be included in this report.

  1. System for testing properties of a network

    DOE Patents [OSTI]

    Rawle, Michael (Springville, UT); Bartholomew, David B. (Springville, UT); Soares, Marshall A. (Taylorsville, UT)

    2009-06-16

    A method for identifying properties of a downhole electromagnetic network in a downhole tool sting, including the step of providing an electromagnetic path intermediate a first location and a second location on the electromagnetic network. The method further includes the step of providing a receiver at the second location. The receiver includes a known reference. The analog signal includes a set amplitude, a set range of frequencies, and a set rate of change between the frequencies. The method further includes the steps of sending the analog signal, and passively modifying the signal. The analog signal is sent from the first location through the electromagnetic path, and the signal is modified by the properties of the electromagnetic path. The method further includes the step of receiving a modified signal at the second location and comparing the known reference to the modified signal.

  2. Weather network computer to control deck-heating system

    SciTech Connect (OSTI)

    Roe, A.

    1997-04-07

    A ground-source heating system for bridge deicing is briefly described in this article. The deck heating system will be controlled by the Oklahoma state weather network. Warm ground air will be pumped from more than 100 boreholes at least 200 feet deep. The heat transfer fluid, possibly propylene glycol, will be circulated through a sealed tube system in the bridge deck. Costs are estimated at $200,000 for the heating system and $840,000 for the total redecking project.

  3. Co-Simulation Tools for Networked Control Systems

    E-Print Network [OSTI]

    Branicky, Michael S.

    , unmanned vehicles, home robotics, distributed virtual environments, power distribution, and building-simulation. The first two tools are extensions to ns-2 called Agent/Plant and NSCSPlant; the third tool integrates and control of the physical world. (right) A networked control system with one controlled system (a.k.a. plant

  4. The Western Pacific Fishery Information Network: A Fisheries Information System

    E-Print Network [OSTI]

    The Western Pacific Fishery Information Network: A Fisheries Information System Introduction. This pa per describes the development and status of this fishery information system. DAVID C. HAMM fishery chang ing with them to obtain and utilize the proper data and information needed to monitor and manage

  5. A Survey of Recent Results in Networked Control Systems

    E-Print Network [OSTI]

    Schenato, Luca

    , long-endurance energy-limited systems such as sensor networks, underwater vehicles, and large arrays are presented in a tutorial fashion, comparing alternative methodologies. KEYWORDS | Automatic control over the Internet [17], [19], [59], and automated highway systems and unmanned aerial vehicles [57

  6. Networked Architecture for Hybrid Electrical Energy Storage Systems

    E-Print Network [OSTI]

    Pedram, Massoud

    Networked Architecture for Hybrid Electrical Energy Storage Systems Younghyun Kim, Sangyoung Park, pedram}@usc.edu ABSTRACT A hybrid electrical energy storage (HEES) system that consists of multiple, heterogeneous electrical energy storage (EES) elements is a promising solution to achieve a cost-effective EES

  7. Neural Network Based Intrusion Detection System for Critical Infrastructures

    SciTech Connect (OSTI)

    Todd Vollmer; Ondrej Linda; Milos Manic

    2009-07-01

    Resiliency and security in control systems such as SCADA and Nuclear plant’s in today’s world of hackers and malware are a relevant concern. Computer systems used within critical infrastructures to control physical functions are not immune to the threat of cyber attacks and may be potentially vulnerable. Tailoring an intrusion detection system to the specifics of critical infrastructures can significantly improve the security of such systems. The IDS-NNM – Intrusion Detection System using Neural Network based Modeling, is presented in this paper. The main contributions of this work are: 1) the use and analyses of real network data (data recorded from an existing critical infrastructure); 2) the development of a specific window based feature extraction technique; 3) the construction of training dataset using randomly generated intrusion vectors; 4) the use of a combination of two neural network learning algorithms – the Error-Back Propagation and Levenberg-Marquardt, for normal behavior modeling. The presented algorithm was evaluated on previously unseen network data. The IDS-NNM algorithm proved to be capable of capturing all intrusion attempts presented in the network communication while not generating any false alerts.

  8. Port-Hamiltonian systems: network modeling and control of nonlinear physical systems

    E-Print Network [OSTI]

    Schaft, Arjan van der

    Port-Hamiltonian systems: network modeling and control of nonlinear physical systems A.J. van der-Hamiltonian system with a controller port-Hamiltonian system, leading to a closed-loop port-Hamiltonian system. Finally, extensions to the distributed-parameter case are provided by formulating boundary control systems

  9. 2/3/2000 Systems Modeling Spring 2000 1 Basics of Queuing Network Models

    E-Print Network [OSTI]

    Browne, James C.

    1 2/3/2000 Systems Modeling ­ Spring 2000 1 Basics of Queuing Network Models Basics of Queuing Deterministic Open Networks Closed Networks Some Example Problems 2/3/2000 Systems Modeling ­ Spring 2000 2 ­ Service requirement for a job. Single Server Open Networks #12; 2 2/3/2000 Systems Modeling ­ Spring 2000

  10. A Secure Fine-Grained Access Control Mechanism for Networked Storage Systems

    E-Print Network [OSTI]

    Kubiatowicz, John D.

    A Secure Fine-Grained Access Control Mechanism for Networked Storage Systems Hsiao-Ying Lin, John@cs.nctu.edu.tw Abstract--Networked storage systems provide storage services for users over networks. Secure networked storage systems store encrypted data to guarantee data confi- dentiality. However, using encryption

  11. A Wireless Sensor Network Air Pollution Monitoring System

    E-Print Network [OSTI]

    Khedo, Kavi K; Mungur, Avinash; Mauritius, University of; Mauritius,; 10.5121/ijwmn.2010.2203

    2010-01-01

    Sensor networks are currently an active research area mainly due to the potential of their applications. In this paper we investigate the use of Wireless Sensor Networks (WSN) for air pollution monitoring in Mauritius. With the fast growing industrial activities on the island, the problem of air pollution is becoming a major concern for the health of the population. We proposed an innovative system named Wireless Sensor Network Air Pollution Monitoring System (WAPMS) to monitor air pollution in Mauritius through the use of wireless sensors deployed in huge numbers around the island. The proposed system makes use of an Air Quality Index (AQI) which is presently not available in Mauritius. In order to improve the efficiency of WAPMS, we have designed and implemented a new data aggregation algorithm named Recursive Converging Quartiles (RCQ). The algorithm is used to merge data to eliminate duplicates, filter out invalid readings and summarise them into a simpler form which significantly reduce the amount of dat...

  12. Autonomous Undersea Systems Network (AUSNet) Protocols To Support Ad-Hoc AUV Communications

    E-Print Network [OSTI]

    semi-autonomous networked robots. Emerging flexible low bandwidth, energy efficient architectures opposed to network support) data transmissions. Current efforts are focused on transitionAutonomous Undersea Systems Network (AUSNet) ­ Protocols To Support Ad-Hoc AUV Communications

  13. On Cyber Security for Networked Control Systems

    E-Print Network [OSTI]

    Amin, Saurabh

    2011-01-01

    buildings and smart structures portend immense datavehicles and buildings equipped with smart meters). Thebuilding’s occupants). The operating systems of upcoming infrastructures such as smart

  14. An Input-Output Analysis of Maine's Fisheries HUGH BRIGGS, RALPH TOWNSEND, and JAMES WILSON

    E-Print Network [OSTI]

    An Input-Output Analysis of Maine's Fisheries HUGH BRIGGS, RALPH TOWNSEND, and JAMES WILSON Lobster traps at Round Pond harbor in Maine. State of Maine Development Office photograph. Introduction Since experienced a substantial revitaliza- tion. Maine, perhaps even more than the rest of New England, has rapidly

  15. Top-Down Influence in Young Children's Linguistic Ambiguity Resolution Hugh Rabagliati

    E-Print Network [OSTI]

    Pylkkänen, Liina

    Top-Down Influence in Young Children's Linguistic Ambiguity Resolution Hugh Rabagliati New York adults resolve syntactic ambiguities by integrating a variety of cues, children are less sensitive to top-down evidence. We test whether this top-down insensitivity is specific to syntax or a general feature

  16. MUSIC MODELS FOR MUSIC-SPEECH SEPARATION Thad Hughes and Trausti Kristjansson

    E-Print Network [OSTI]

    Cortes, Corinna

    MUSIC MODELS FOR MUSIC-SPEECH SEPARATION Thad Hughes and Trausti Kristjansson Google Research, USA ABSTRACT We consider the task of speech recognition with loud music background interference. We use model-based music-speech separation and train GMM models for music on the audio prior to speech. We show over 8

  17. Review, reduce, and replace: The three `R's of energy security Larry Hughes

    E-Print Network [OSTI]

    Hughes, Larry

    ERG2007/01 Review, reduce, and replace: The three `R's of energy security Larry Hughes Energy: The three `R's of energy security 1 Abstract Rising world energy costs, increasing demand for energy contributed to national and international concerns over energy security. If a jurisdiction's energy security

  18. 50 IEEE power & energy magazine july/august 2007 by Hugh Rudnick,

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    50 IEEE power & energy magazine july/august 2007 by Hugh Rudnick, Alejandro Arnau, Sebastian Mocarquer, and Efrain Voscoboinik 1540-7977/07/$25.00©2007 IEEE #12;july/august 2007 IEEE power & energy be either North American or European. Countries such as Colombia and Brazil, among others, were directly

  19. IEEE Network Special Issue on Network Systems Architecture The last two decades have been characterized by significant advances in networking. The

    E-Print Network [OSTI]

    Baldi, Mario

    IEEE Network Special Issue on Network Systems Architecture Editorial The last two decades have been the development of a wide range of high- speed networks in the wide and local area, while the advances in access. The prevalence of Internet technology has brought its services to a very large population, which has been growing

  20. Model-based Security Risk Analysis for Networked Embedded Systems

    E-Print Network [OSTI]

    . The Security-Enhanced Embedded system Development (SEED) process has proposed a set of tools that a bridge are illustrated in a smart metering infrastructure scenario. 1 Introduction Meeting the security needs. The forthcoming vehicular networks and smart grid infrastructures are examples of such a technological development

  1. Reduced-Order Predictive Outage Compensators for Networked Systems

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    Reduced-Order Predictive Outage Compensators for Networked Systems Erik Henriksson Henrik Sandberg communication outage of several samples in situations when the radio environment is noisy and low transmission power is desirable. We propose a method to compensate for outages by introducing a predictive outage

  2. Elements of Information Theory for Networked Control Systems

    E-Print Network [OSTI]

    Franceschetti, Massimo

    Chapter 1 Elements of Information Theory for Networked Control Systems Massimo Franceschetti. This challenges the standard assumption of classical control theory that communication can be per- formed and control theories and can be written in various forms. These are illustrated in Sect. 1.4, along

  3. Topic 5: Renewable Power 1Networking and Distributed Systems

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    in Smart Grid 3 · We are interested in power plants with low carbon footprint: · Both CO2 and CH4 in Smart Grid 5 · Carbon footprint is also defined for power plants: · Conventional coal combustion hasTopic 5: Renewable Power 1Networking and Distributed Systems Department of Electrical & Computer

  4. Chemistry-inspired Programmable Hardware in Communication and Networking Systems

    E-Print Network [OSTI]

    Vetter, Thomas

    Chemistry-inspired Programmable Hardware in Communication and Networking Systems Massimo Monti April, 2014 Abstract Chemistry-inspired algorithms represent a novel approach to control dynamics of using Chemistry-inspired algorithms range from the design (i.e., enabling runtime programmability

  5. Power-laws in recurrence networks from dynamical systems

    E-Print Network [OSTI]

    Y. Zou; J. Heitzig; R. V. Donner; J. F. Donges; J. D. Farmer; R. Meucci; S. Euzzor; N. Marwan; J. Kurths

    2012-03-15

    Recurrence networks are a novel tool of nonlinear time series analysis allowing the characterisation of higher-order geometric properties of complex dynamical systems based on recurrences in phase space, which are a fundamental concept in classical mechanics. In this Letter, we demonstrate that recurrence networks obtained from various deterministic model systems as well as experimental data naturally display power-law degree distributions with scaling exponents $\\gamma$ that can be derived exclusively from the systems' invariant densities. For one-dimensional maps, we show analytically that $\\gamma$ is not related to the fractal dimension. For continuous systems, we find two distinct types of behaviour: power-laws with an exponent $\\gamma$ depending on a suitable notion of local dimension, and such with fixed $\\gamma=1$.

  6. Output Feedback Control and Optimal Bandwidth Allocation of Networked Control Systems 

    E-Print Network [OSTI]

    Dong, Jiawei

    2013-04-12

    A networked control system (NCS) is a control system where sensors, actuators, and controllers are interconnected over a communication network. This dissertation presents a framework for modeling, stability analysis, optimal control, and bandwidth...

  7. An Information Theoretic Location Verification System for Wireless Networks

    E-Print Network [OSTI]

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

    2012-01-01

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

  8. Scaling the Earth System Grid to 100Gbps Networks

    SciTech Connect (OSTI)

    Balman, Mehmet; Sim, Alex

    2012-03-02

    The SC11 demonstration, titled Scaling the Earth System Grid to 100Gbps Networks, showed the ability to use underlying infrastructure for the movement of climate data over 100Gbps network. Climate change research is one of the critical data intensive sciences, and the amount of data is continuously growing. Climate simulation data is geographically distributed over the world, and it needs to be accessed from many sources for fast and efficient analysis and inter-comparison of simulations. We used a 100Gbps link connecting National Energy Research Scientific Computing Center (NERSC) at Lawrence Berkeley National Laboratory (LBNL), Argonne National Laboratory (ANL) and Oak Ridge National Laboratory (ORNL). In the demo, the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) phase 3 of the Coupled Model Intercomparison Project (CMIP-3) dataset was staged into the memory of computing nodes at ANL and ORNL from NERSC over the 100Gbps network for analysis and visualization. In general, climate simulation data consists of relatively small and large files with irregular file size distribution in each dataset. In this demo, we addressed challenges on data management in terms of high bandwidth networks, usability of existing protocols and middleware tools, and how applications can adapt and benefit from next generation networks.

  9. Artificial Neural Network for Optimized Power System Management

    E-Print Network [OSTI]

    OLeary, Daniel Albert

    2015-01-01

    vii Abstract Artificial Neural Network for Optimized PowerAn Artificial Neural Network (ANN). Data is input to theSANTA CRUZ ARTIFICIAL NEURAL NETWORK FOR OPTIMIZED POWER

  10. The Importance, Design and Implementation of a Middleware for Networked Control Systems

    E-Print Network [OSTI]

    The Importance, Design and Implementation of a Middleware for Networked Control Systems Kyoung, networked control systems may soon become prevalent in many control applica- tions. While the capability major challenge: a middleware framework that en- ables a networked control system to be implemented

  11. SYSTEM APPROACH-BASED BAYESIAN NETWORK TO AID MAINTENANCE OF MANUFACTURING PROCESS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    for manufacturing systems. In addition, recent works on system safety and Bayesian Networks (BNs) are developedSYSTEM APPROACH-BASED BAYESIAN NETWORK TO AID MAINTENANCE OF MANUFACTURING PROCESS Weber P., Suhner explores a new methodology to develop Bayesian Network-based diagnosis and prognosis aids for manufacturing

  12. End-System Network Interface Controller for 100 Gb/s Wide Area Networks: Final Report

    SciTech Connect (OSTI)

    Wen, Jesse

    2013-08-30

    In recent years, network bandwidth requirements have scaled multiple folds, pushing the need for the development of data exchange mechanisms at 100 Gb/s and beyond. High performance computing, climate modeling, large-scale storage, and collaborative scientific research are examples of applications that can greatly benefit by leveraging high bandwidth capabilities of the order of 100 Gb/s. Such requirements and advances in IEEE Ethernet standards, Optical Transport Unit4 (OTU4), and host-system interconnects demand a network infrastructure supporting throughput rates of the order of 100 Gb/s with a single wavelength. To address such a demand Acadia Optronics in collaboration with the University of New Mexico, proposed and developed a end-system Network Interface Controller (NIC) for the 100Gbps WANs. Acadia’s 100G NIC employs an FPGA based system with a high-performance processor interconnect (PCIe 3.0) and a high capacity optical transmission link (CXP) to provide data transmission at the rate of 100 Gbps.

  13. Distributional properties of Euclidean distances in wireless networks involving road systems

    E-Print Network [OSTI]

    Schmidt, Volker

    1 Distributional properties of Euclidean distances in wireless networks involving road systems of large wireless networks. The network geometry is modelled by random geometric graphs, and the locations are closely related with the interference geometry and, consequently, the performance of wireless networks

  14. High-speed and high-fidelity system and method for collecting network traffic

    DOE Patents [OSTI]

    Weigle, Eric H. (Los Alamos, NM)

    2010-08-24

    A system is provided for the high-speed and high-fidelity collection of network traffic. The system can collect traffic at gigabit-per-second (Gbps) speeds, scale to terabit-per-second (Tbps) speeds, and support additional functions such as real-time network intrusion detection. The present system uses a dedicated operating system for traffic collection to maximize efficiency, scalability, and performance. A scalable infrastructure and apparatus for the present system is provided by splitting the work performed on one host onto multiple hosts. The present system simultaneously addresses the issues of scalability, performance, cost, and adaptability with respect to network monitoring, collection, and other network tasks. In addition to high-speed and high-fidelity network collection, the present system provides a flexible infrastructure to perform virtually any function at high speeds such as real-time network intrusion detection and wide-area network emulation for research purposes.

  15. FEL3330/EL2910 Networked and Multi-Agent Control Systems

    E-Print Network [OSTI]

    Dimarogonas, Dimos

    FEL3330/EL2910 Networked and Multi-Agent Control Systems Spring 2013 Automatic Control School of Electrical Engineering Royal Institute of Technology Lecture 1 1 May 6, 2013 #12;FEL3330/EL2910 Networked #12;FEL3330/EL2910 Networked and Multi-Agent Control Systems Lecture 1: Introduction · Practical

  16. A Privacy Preservation Model for Facebook-like Social Network Systems

    E-Print Network [OSTI]

    Regina, University of

    A Privacy Preservation Model for Facebook-like Social Network Systems Philip W. L. Fong, Mohd Anwar-0-7731-0659 (print) ISBN 978-0-7731-0660 (online) #12;A Privacy Preservation Model for Facebook-Like Social Network growth in the popularity of social network systems, with Facebook being an archetypical example. Due

  17. IEEE TRANSACTIONS ON POWER SYSTEMS 1 MILP Formulation for Islanding of Power Networks

    E-Print Network [OSTI]

    Grothey, Andreas

    IEEE TRANSACTIONS ON POWER SYSTEMS 1 MILP Formulation for Islanding of Power Networks P. A. Trodden prevented by intentionally splitting the system into islands [10]. By isolating the faulty part formulation for the islanding of power networks is presented. Given an area of uncertainty in the network

  18. Monitoring nuclear reactor systems using neural networks and fuzzy logic

    SciTech Connect (OSTI)

    Ikonomopoulos, A.; Tsoukalas, L.H.; Uhrig, R.E. [Tennessee Univ., Knoxville, TN (United States); Mullens, J.A. [Tennessee Univ., Knoxville, TN (United States)]|[Oak Ridge National Lab., TN (United States)

    1991-12-01

    A new approach is presented that demonstrates the potential of trained artificial neural networks (ANNs) as generators of membership functions for the purpose of monitoring nuclear reactor systems. ANN`s provide a complex-to-simple mapping of reactor parameters in a process analogous to that of measurement. Through such ``virtual measurements`` the value of parameters with operational significance, e.g., control-valve-disk-position, valve-line-up or performance can be determined. In the methodology presented the output of a virtual measuring device is a set of membership functions which independently represent different states of the system. Utilizing a fuzzy logic representation offers the advantage of describing the state of the system in a condensed form, developed through linguistic descriptions and convenient for application in monitoring, diagnostics and generally control algorithms. The developed methodology is applied to the problem of measuring the disk position of the secondary flow control valve of an experimental reactor using data obtained during a start-up. The enhanced noise tolerance of the methodology is clearly demonstrated as well as a method for selecting the actual output. The results suggest that it is possible to construct virtual measuring devices through artificial neural networks mapping dynamic time series to a set of membership functions and thus enhance the capability of monitoring systems. 8 refs., 11 figs., 1 tab.

  19. The Early Abbasid Caliphate: A Political History. By HUGH KENNEDY. Totowa, N. J.: Barnes and Noble, 1981. Pp. 238. Maps, glossary, index, bibliography. $25.00.

    E-Print Network [OSTI]

    Ibrahim, Mahmood

    1983-01-01

    Barnes and Noble, 1981. Pp. KENNEDY. Maps, glossary, index,bibliography. $25.00. Hugh Kennedy's The Early Abbasidculture and civilization. Kennedy restricts his generally

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

    E-Print Network [OSTI]

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

    2015-01-01

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

  1. A network-based ranking system for American college football

    E-Print Network [OSTI]

    Park, J; Park, Juyong

    2005-01-01

    American college football faces a conflict created by the desire to stage national championship games between the best teams of a season when there is no conventional playoff system to decide which those teams are. Instead, ranking of teams is based on their record of wins and losses during the season, but each team plays only a small fraction of eligible opponents, making the system underdetermined or contradictory or both. It is an interesting challenge to create a ranking system that at once is mathematically well-founded, gives results in general accord with received wisdom concerning the relative strengths of the teams, and is based upon intuitive principles, allowing it to be accepted readily by fans and experts alike. Here we introduce a one-parameter ranking method that satisfies all of these requirements and is based on a network representation of college football schedules.

  2. Controllable quantum information network with a superconducting system

    SciTech Connect (OSTI)

    Zhang, Feng-yang, E-mail: zhangfy@mail.dlut.edu.cn [School of Physics and Materials Engineering, Dalian Nationalities University, Dalian 116600 (China); Liu, Bao [Beijing Computational Science Research Center (CSRC), Beijing 100084 (China); Chen, Zi-hong [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China); Wu, Song-lin [School of Physics and Materials Engineering, Dalian Nationalities University, Dalian 116600 (China); Song, He-shan [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)

    2014-07-15

    We propose a controllable and scalable architecture for quantum information processing using a superconducting system network, which is composed of current-biased Josephson junctions (CBJJs) as tunable couplers between the two superconducting transmission line resonators (TLRs), each coupling to multiple superconducting qubits (SQs). We explicitly demonstrate that the entangled state, the phase gate, and the information transfer between any two selected SQs can be implemented, respectively. Lastly, numerical simulation shows that our scheme is robust against the decoherence of the system. -- Highlights: •An architecture for quantum information processing is proposed. •The quantum information transfer between any two selected SQs is implemented. •This proposal is robust against the decoherence of the system. •This architecture can be fabricated on a chip down to the micrometer scale.

  3. Structural Health Monitoring Using Neural Network Based Vibrational System Identification

    E-Print Network [OSTI]

    Sofge, Donald A

    2007-01-01

    Composite fabrication technologies now provide the means for producing high-strength, low-weight panels, plates, spars and other structural components which use embedded fiber optic sensors and piezoelectric transducers. These materials, often referred to as smart structures, make it possible to sense internal characteristics, such as delaminations or structural degradation. In this effort we use neural network based techniques for modeling and analyzing dynamic structural information for recognizing structural defects. This yields an adaptable system which gives a measure of structural integrity for composite structures.

  4. A Stochastic Calculus for Network Systems with Renewable Energy Sources

    E-Print Network [OSTI]

    Wu, Kui; Marinakis, Dimitri

    2011-01-01

    We consider the performance modeling and evaluation of network systems powered with renewable energy sources such as solar and wind energy. Such energy sources largely depend on environmental conditions, which are hard to predict accurately. As such, it may only make sense to require the network systems to support a soft quality of service (QoS) guarantee, i.e., to guarantee a service requirement with a certain high probability. In this paper, we intend to build a solid mathematical foundation to help better understand the stochastic energy constraint and the inherent correlation between QoS and the uncertain energy supply. We utilize a calculus approach to model the cumulative amount of charged energy and the cumulative amount of consumed energy. We derive upper and lower bounds on the remaining energy level based on a stochastic energy charging rate and a stochastic energy discharging rate. By building the bridge between energy consumption and task execution (i.e., service), we study the QoS guarantee under...

  5. Preliminary systems engineering evaluations for the National Ecological Observatory Network.

    SciTech Connect (OSTI)

    Robertson, Perry J.; Kottenstette, Richard Joseph; Crouch, Shannon M.; Brocato, Robert Wesley; Zak, Bernard Daniel; Osborn, Thor D.; Ivey, Mark D.; Gass, Karl Leslie; Heller, Edwin J.; Dishman, James Larry; Schubert, William Kent; Zirzow, Jeffrey A.

    2008-11-01

    The National Ecological Observatory Network (NEON) is an ambitious National Science Foundation sponsored project intended to accumulate and disseminate ecologically informative sensor data from sites among 20 distinct biomes found within the United States and Puerto Rico over a period of at least 30 years. These data are expected to provide valuable insights into the ecological impacts of climate change, land-use change, and invasive species in these various biomes, and thereby provide a scientific foundation for the decisions of future national, regional, and local policy makers. NEON's objectives are of substantial national and international importance, yet they must be achieved with limited resources. Sandia National Laboratories was therefore contracted to examine four areas of significant systems engineering concern; specifically, alternatives to commercial electrical utility power for remote operations, approaches to data acquisition and local data handling, protocols for secure long-distance data transmission, and processes and procedures for the introduction of new instruments and continuous improvement of the sensor network. The results of these preliminary systems engineering evaluations are presented, with a series of recommendations intended to optimize the efficiency and probability of long-term success for the NEON enterprise.

  6. Synchronization of Networked Jahn-Teller Systems in Circuit QED

    E-Print Network [OSTI]

    Yusuf Gul

    2015-08-05

    We consider the nonlinear effects in Jahn-Teller system of two coupled resonators interacting simultaneously with flux qubit using Circuit QED. Two frequency description of Jahn Teller system that inherits the networked structure of both nonlinear Josephson Junctions and harmonic oscillators is employed to describe the synchronous structures in multifrequency scheme. Emergence of dominating mode is investigated to analyze frequency locking by eigenvalue spectrum. Rabi Supersplitting is tuned for coupled and uncoupled synchronous con?gurations in terms of frequency entrainment switched by coupling strength between resonators. Second order coherence functions are employed to investigate self-sustained oscillations in resonator mode and qubit dephasing. Snychronous structure between correlations of priviledged mode and qubit is obtained in localization-delocalization and photon blockade regime controlled by the population imbalance.

  7. Innovation Systems as Patent Networks: The Netherlands, India and Nanotech

    E-Print Network [OSTI]

    Dolfsma, Wilfred

    2011-01-01

    Research in the domain of 'Innovation Studies' has been claimed to allow for the study of how technology will develop in the future. Some suggest that the National and Sectoral Innovation Systems literature has become bogged down, however, into case studies of how specific institutions affect innovation in a specific country. A useful notion for policy makers in particular, Balzat & Hanusch (2004) argued that there is a need for NIS studies to develop complementary and also quantitative methods in order to generate new insights that are comparable across national borders. We use data for patents granted by the World Intellectual Property Organization (WIPO) to map innovation systems. Groupings of patents into primary and secondary classes (co-classification) can be used as relational indicators. Knowledge from one class may be more easily used in another class when a co-classification relation exists. Using social network analysis, we map the co-classification of patents among classes and thus indicate wh...

  8. 1. Introduction Wireless networked systems arise in various communication contexts, and are becoming

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1. Introduction Wireless networked systems arise in various communication contexts drawbacks. A fundamental problem that NC needs to face over lossy (e.g., wireless) networks is the so in Wireless Communications (2011) pp. 120-142" #12;networks as the blueprint. Furthermore, in contrast

  9. Coupling neural networks to incomplete dynamical systems via variational data assimilation

    E-Print Network [OSTI]

    Hsieh, William

    Coupling neural networks to incomplete dynamical systems via variational data assimilation­forward neural network (NN) model opens the possibility of hybrid neural­dynamical models via variational data value decomposition (SVD) (Syu and Neelin 1995), or by a neural network (Tang et al. 1999). While

  10. Critical Node Identification of Smart Power System Using Complex Network Framework Based

    E-Print Network [OSTI]

    Pota, Himanshu Roy

    transmission networks, in which a DC power flow model and overloading of lines is embedded into the traditional or node removal can cause serious impact on normal system operation. Removal of transmission lines from characteristics and complex network theory together. Particularly, electric power networks are quite different

  11. The RUNES Middleware for Networked Embedded Systems and its Application in a Disaster Management Scenario

    E-Print Network [OSTI]

    Picco, Gian Pietro

    scenario involves fire management in a road tunnel that is instrumented with networked sensor and actuator (Reconfigurable Ubiq- uitous Network Embedded Systems) project1 , involves a road tunnel that is instrumented with networked embedded sensors, actuators, and larger, more powerful, devices. The latter act as gateways

  12. Active Network Approach to the Design of Secure Online Auction Systems Basem Shihada and Sampalli Srinivas

    E-Print Network [OSTI]

    Shihada, Basem

    authentication and authorization, bid validation and bid data encryption. This paper presents a novel approach and authorization, bid validation and bid data encryption. 1.1 Active Networks Active networking is a new networking} @cs.dal.ca ABSTRACT Online auction systems require high-speed bid transmission, large bandwidth

  13. Pollution Attacks and Defenses in Wireless Inter-flow Network Coding Systems

    E-Print Network [OSTI]

    Nita-Rotaru, Cristina

    1 Pollution Attacks and Defenses in Wireless Inter-flow Network Coding Systems Jing Dong, Reza Abstract--We study data pollution attacks in wireless inter-flow network coding systems. Although several the existing systems, and use it to analyze the impact of pollution attacks. Our analysis shows

  14. Tree-structured Data Regeneration with Network Coding in Distributed Storage Systems

    E-Print Network [OSTI]

    Li, Baochun

    Tree-structured Data Regeneration with Network Coding in Distributed Storage Systems Jun Li, Shuang of Toronto, Canada bli@eecg.toronto.edu Abstract--Distributed storage systems, built on peer-to-peer networks influence the data reliability and availability of distributed storage systems. It has been ac- knowledged

  15. Efficiency-Driven Design Time Optimization of a Hybrid Energy Storage System with Networked Charge Transfer

    E-Print Network [OSTI]

    Pedram, Massoud

    Efficiency-Driven Design Time Optimization of a Hybrid Energy Storage System with Networked Charge efficiency for various problem setups and scales. Keywords--hybrid energy storage system; networked charge transfer interconnect; placement I. INTRODUCTION Energy storage systems (ESSs) store the excess energy

  16. Experimental Study on Neighbor Selection Policy for Phoenix Network Coordinate System

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Experimental Study on Neighbor Selection Policy for Phoenix Network Coordinate System Gang Wang. Phoenix Network Coordinate system is a recently proposed dot product based NC system with high prediction accuracy and better robustness. In this paper, we discuss the neighbor selection policies for Phoenix

  17. Network Economics Anna Nagurney

    E-Print Network [OSTI]

    Nagurney, Anna

    Performance/Efficiency Measure with Applications to a Variety of Network Systems · Transportation Network Network Satellite and Undersea Cable Networks Duke Energy Gas Pipeline Network Transportation with transportation as the unifying application. #12;Subway Network Railroad Network Iridium Satellite Constellation

  18. Hawaii International Conference on Systems Sciences, January 2002, Hawaii. IEEE Growth and Propagation of Disturbances in a Communication Network Model

    E-Print Network [OSTI]

    Newman, David

    . Therefore, network vulnerability is a major hazard. Analysis of communications system traffic suggests and to characteristics of real Internet data. 1. Introduction Complex systems such as, communication networksHawaii International Conference on Systems Sciences, January 2002, Hawaii. © IEEE Growth

  19. A Study of Wind Energy Use for Space Heating in Prince Edward Island1 Larry Hughes, Mandeep Dhaliwal, Aaron Long, Nikita Sheth

    E-Print Network [OSTI]

    Hughes, Larry

    ERG/200605 A Study of Wind Energy Use for Space Heating in Prince Edward Island1 Larry Hughes in June 2006. #12;Hughes, Dhaliwal, Long, Sheth: Wind for space heating 1 Abstract Prince Edward Island, or other energy sources, are at the mercy of rapidly changing energy prices. Prince Edward Island

  20. Evolving Plastic Neural Networks with Novelty Search Sebastian Risi

    E-Print Network [OSTI]

    Stanley, Kenneth O.

    Evolving Plastic Neural Networks with Novelty Search Sebastian Risi Charles E. Hughes Kenneth O-based learning tasks, thereby opening a new direction for research in evolving plastic ANNs. Keywords Novelty combining these complementary forms of adaptation by evolving ANNs with synaptic plastic- ity driven

  1. System and method for time synchronization in a wireless network

    DOE Patents [OSTI]

    Gonia, Patrick S. (Maplewood, MN); Kolavennu, Soumitri N. (Blaine, MN); Mahasenan, Arun V. (Kerala, IN); Budampati, Ramakrishna S. (Maple Grove, MN)

    2010-03-30

    A system includes multiple wireless nodes forming a cluster in a wireless network, where each wireless node is configured to communicate and exchange data wirelessly based on a clock. One of the wireless nodes is configured to operate as a cluster master. Each of the other wireless nodes is configured to (i) receive time synchronization information from a parent node, (ii) adjust its clock based on the received time synchronization information, and (iii) broadcast time synchronization information based on the time synchronization information received by that wireless node. The time synchronization information received by each of the other wireless nodes is based on time synchronization information provided by the cluster master so that the other wireless nodes substantially synchronize their clocks with the clock of the cluster master.

  2. Co-Simulation Tools for Networked Control Systems

    E-Print Network [OSTI]

    Branicky, Michael S.

    /Plant Extension ! NSCSPlant, NSCSController Extensions ! Modelica/ns-2 Integration [BPZ'02 NCS Co medium (wire/wireless link) Network node (data source) Network node (data sink) From Modelica to ns-2 From ns-2 to Modelica [Al-Hammouri, Agrawal, Liberatore, Branicky] Network View Example Reference Speed

  3. Calculating a checksum with inactive networking components in a computing system

    DOE Patents [OSTI]

    Aho, Michael E; Chen, Dong; Eisley, Noel A; Gooding, Thomas M; Heidelberger, Philip; Tauferner, Andrew T

    2014-12-16

    Calculating a checksum utilizing inactive networking components in a computing system, including: identifying, by a checksum distribution manager, an inactive networking component, wherein the inactive networking component includes a checksum calculation engine for computing a checksum; sending, to the inactive networking component by the checksum distribution manager, metadata describing a block of data to be transmitted by an active networking component; calculating, by the inactive networking component, a checksum for the block of data; transmitting, to the checksum distribution manager from the inactive networking component, the checksum for the block of data; and sending, by the active networking component, a data communications message that includes the block of data and the checksum for the block of data.

  4. Discrete Event Simulation of QoS of a SCADA System Interconnecting a Power Grid and a Telco Network

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Discrete Event Simulation of QoS of a SCADA System Interconnecting a Power Grid and a Telco Network, Telco network and Power grid act as a whole heterogeneous network. While SCADA system and Telco network can be well represented by means of discrete event simulators. To represent a Power grid a continuous

  5. Continuous-time Proportional-Integral Distributed Optimization for Networked Systems

    E-Print Network [OSTI]

    Egerstedt, Magnus

    Continuous-time Proportional-Integral Distributed Optimization for Networked Systems Greg Drogea1;Continuous-time Proportional-Integral Distributed Optimization for Networked Systems Greg Droge and Hiroaki these methods to develop a continuous-time proportional-integral distributed optimization method. Furthermore

  6. Dependability Modelling of Repairable Systems using Bayesian Networks Martin Neil *, David Marquez**

    E-Print Network [OSTI]

    Neil, Martin

    : We present a Hybrid Bayesian Network (HBN) framework to model the availability of renewable systems repair (renewal) distributions might be modelled using HBNs. Keywords: Bayesian Networks; Bayesian systems represented by a series of models each designed to model distinct stages in the renewal process

  7. A Wireless Sensor Network for Smart Roadbeds and Intelligent Transportation Systems

    E-Print Network [OSTI]

    A Wireless Sensor Network for Smart Roadbeds and Intelligent Transportation Systems by Ara N a wireless sensor package to instrument roadways for Intelligent Transportation Systems. The sensor package______________________________________________________ Arthur C. Smith Chairman, Department Committee on Graduate Theses #12;2 A Wireless Sensor Network

  8. Systemic Risk from Global Financial Derivatives: A Network Analysis of Contagion

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    #12;Systemic Risk from Global Financial Derivatives: A Network Analysis of Contagion and Its. Not for Redistribution #12;© 2012 International Monetary Fund WP/ Monetary and Capital Markets Department Systemic Risk from Global Financial Derivatives: A Network Analysis of Contagion and Its Mitigation with Super

  9. DeepCough: A Deep Convolutional Neural Network in A Wearable Cough Detection System

    E-Print Network [OSTI]

    Odam, Kofi

    DeepCough: A Deep Convolutional Neural Network in A Wearable Cough Detection System Justice Amoh that employs a wearable acoustic sensor and a deep convolutional neural network for detecting coughs. We evaluate the performance of our system on 14 healthy volunteers and compare it to that of other cough

  10. Energy-Aware Routing in Sensor Networks: A Large System Approach

    E-Print Network [OSTI]

    Srikant, Rayadurgam

    Energy-Aware Routing in Sensor Networks: A Large System Approach Longbi Lin a , Ness B. Shroff a, Sensor Network, Large System, Mathematical Programming/Optimization, Simulations 1 Introduction Energy re- plenishment. Energy sources, e.g., solar cells, can be attached to sensor nodes to prolong

  11. TWO-SETTLEMENT SYSTEMS FOR ELECTRICITY MARKETS: ZONAL AGGREGATION UNDER NETWORK UNCERTAINTY AND MARKET POWER

    E-Print Network [OSTI]

    TWO-SETTLEMENT SYSTEMS FOR ELECTRICITY MARKETS: ZONAL AGGREGATION UNDER NETWORK UNCERTAINTY}@ieor.berkeley.edu Abstract We analyze welfare properties of two-settlement systems for electricity in the presence of network designs adopted or proposed for many electricity markets around the world. In particular, we examine

  12. A Privacy Preservation Model for Facebook-Style Social Network Systems

    E-Print Network [OSTI]

    A Privacy Preservation Model for Facebook-Style Social Network Systems Philip W. L. Fong1 , Mohd network systems, with Facebook being an archetypical example. The access control paradigm behind the privacy preservation mechanism of Facebook is dis- tinctly different from such existing access control

  13. Study of a Fault Analysis System for a Heat Supply Network Based on GIS 

    E-Print Network [OSTI]

    Zou, P.; Liu, M.; Tang, H.; Wang, X.; Li, N.; Wang, W.

    2006-01-01

    Conventional methods cannot satisfy the request of the layout and operation management in a heating system. The geographical information system (GIS) in a heat supply network can realize information conformity and information share roundly, which...

  14. The Low Power Energy Aware Processing (LEAP) Embedded Networked Sensor System

    E-Print Network [OSTI]

    Dustin McIntire; Kei Ho; Bernie Yip; Amarjeet Singh; Winston Wu; William J. Kaiser

    2005-01-01

    of Power Consumption in Energy- Aware Operating Systems”,Power Energy Aware Processing (LEAP) Embedded Networked Sensor Systempower and high F. Design Approach: Energy Monitoring and Management Development and deployment of ENS systems

  15. Water Distribution System Monitoring and Decision Support Using a Wireless Sensor Network

    E-Print Network [OSTI]

    Allen, Michael

    Water distribution systems comprise labyrinthine networks of pipes, often in poor states of repair, that are buried beneath our city streets and relatively inaccessible. Engineers who manage these systems need reliable ...

  16. An evaluation of the storage systems based on network-attached disks 

    E-Print Network [OSTI]

    Ma, Gang

    1998-01-01

    The emergence of network-attached disks provides the phics. possibility of transferring data between the storage system and the client directly. This offers new possibilities in building a distributed storage system. In this thesis, we examine...

  17. THE TOTAL PETROLEUM SYSTEM--THE NATURAL FLUID NETWORK THAT CONSTRAINS THE

    E-Print Network [OSTI]

    Laughlin, Robert B.

    Chapter PS THE TOTAL PETROLEUM SYSTEM--THE NATURAL FLUID NETWORK THAT CONSTRAINS THE ASSESSMENT Survey Click here or on this symbol in the toolbar to return. U.S. GEOLOGICAL SURVEY WORLD PETROLEUM.................................................................................................................PS-2 Total Petroleum System

  18. Synchronization in node of complex networks consist of complex chaotic system

    SciTech Connect (OSTI)

    Wei, Qiang, E-mail: qiangweibeihua@163.com [Beihua University computer and technology College, BeiHua University, Jilin, 132021, Jilin (China); Digital Images Processing Institute of Beihua University, BeiHua University, Jilin, 132011, Jilin (China); Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, 116024 (China); Xie, Cheng-jun [Beihua University computer and technology College, BeiHua University, Jilin, 132021, Jilin (China); Digital Images Processing Institute of Beihua University, BeiHua University, Jilin, 132011, Jilin (China); Liu, Hong-jun [School of Information Engineering, Weifang Vocational College, Weifang, 261041 (China); Li, Yan-hui [The Library, Weifang Vocational College, Weifang, 261041 (China)

    2014-07-15

    A new synchronization method is investigated for node of complex networks consists of complex chaotic system. When complex networks realize synchronization, different component of complex state variable synchronize up to different scaling complex function by a designed complex feedback controller. This paper change synchronization scaling function from real field to complex field for synchronization in node of complex networks with complex chaotic system. Synchronization in constant delay and time-varying coupling delay complex networks are investigated, respectively. Numerical simulations are provided to show the effectiveness of the proposed method.

  19. A version of this paper will be presented at the Fifth Dubrovnik Conference on Sustainable Development of Energy, Water, and Environment Systems in Dubrovnik, Croatia, September

    E-Print Network [OSTI]

    Hughes, Larry

    Development of Energy, Water, and Environment Systems in Dubrovnik, Croatia, September 2009. ERG/200905 Energy wedges: A systematic way to address energy security and greenhouse gas emissions Larry Hughes, PhD Energy, Canada larry.hughes@dal.ca http://lh.ece.dal.ca/enen 6 May 2009 #12;Energy wedges: A systematic way

  20. Optical Wireless based on High Brightness Visible LEDs Grantham Pang, Thomas Kwan, Hugh Liu, Chi-Ho Chan

    E-Print Network [OSTI]

    Pang, Grantham

    tolerance to humidity, low power consumption and minimal heat generation. Light-emitting diodes (LEDsOptical Wireless based on High Brightness Visible LEDs Grantham Pang, Thomas Kwan, Hugh Liu, Chi use of lighting or signaling devices constructed by light-emitting diodes (LEDs). The idea

  1. DUAL USE OF LEDS: SIGNALING AND COMMUNICATIONS IN ITS Grantham Pang, Chi-ho Chan, Hugh Liu, Thomas Kwan

    E-Print Network [OSTI]

    Pang, Grantham

    lights with LEDs is a reduction in power consumption [7]. In addition, incandescent traffic signals burn1 DUAL USE OF LEDS: SIGNALING AND COMMUNICATIONS IN ITS Grantham Pang, Chi-ho Chan, Hugh Liu of light-emitting diodes (LEDs) over incandescent lights is well-supported. This is due to their high

  2. Chapter 15. Strawberry Production Vance M. Whitaker, Nathan S. Boyd, Natalia A. Peres and Hugh A. Smith

    E-Print Network [OSTI]

    Ma, Lena

    Chapter 15. Strawberry Production Vance M. Whitaker, Nathan S. Boyd, Natalia A. Peres and Hugh A. Smith Botany and Planting Strawberry - Fragaria x ananassa, Rosaceae. Table 15.1. Planting information for strawberries. Planting dates North Florida Sept 15 - Oct 15 Central Florida Sept 25 - Oct 25 South Florida Oct

  3. SYS 1: Programming and Architecting Embedded Networked Systems

    E-Print Network [OSTI]

    2006-01-01

    Networked Sensing Programming and Architecting EmbeddedApproach • Main programming primitives in Kairos: get_value@n; Benefits • Ease of programming (Kairos extends C) •

  4. Potential uses of a wireless network in physical security systems.

    SciTech Connect (OSTI)

    Witzke, Edward L.

    2010-07-01

    Many possible applications requiring or benefiting from a wireless network are available for bolstering physical security and awareness at high security installations or facilities. These enhancements are not always straightforward and may require careful analysis, selection, tuning, and implementation of wireless technologies. In this paper, an introduction to wireless networks and the task of enhancing physical security is first given. Next, numerous applications of a wireless network are brought forth. The technical issues that arise when using a wireless network to support these applications are then discussed. Finally, a summary is presented.

  5. Multiagent Network Security System using FIPA-OS Taraka D. Peddireddy; University of South Carolina; Columbia; South Carolina

    E-Print Network [OSTI]

    Vidal, Jose M.

    Carolina; Columbia; South Carolina Jose M. Vidal, Assistant Professor, University of South Carolina, Columbia, South Carolina Keywords: Multiagent Network Security, Distributed Systems Security, Distributed1 Multiagent Network Security System using FIPA-OS Taraka D. Peddireddy; University of South

  6. Open Control Networking Systems for Smarter Building Operations-Fundamentals of System Architecture and Design 

    E-Print Network [OSTI]

    Gibson, M.

    2011-01-01

    Logo www.lonmark.org ICEBO Oct 18-20, 2011 LONMARK Purpose ? To?promote?interoperable?products?and?collaborative? marketing?programs ? To?provide?a?forum?to?define?application?specific?design? requirements ? To?create?market?demand?for?open,?interoperable?systems... stream_source_info ESL-IC-11-10-48.pdf.txt stream_content_type text/plain stream_size 18007 Content-Encoding ISO-8859-1 stream_name ESL-IC-11-10-48.pdf.txt Content-Type text/plain; charset=ISO-8859-1 Open?Control?Networking?Systems...

  7. Neural Networks and Expert Systems to solve the problems of large amounts of Experimental Data at JET

    E-Print Network [OSTI]

    Neural Networks and Expert Systems to solve the problems of large amounts of Experimental Data at JET

  8. An adaptive artificial neural network model for sizing stand-alone photovoltaic systems: Application for isolated sites in Algeria

    E-Print Network [OSTI]

    Mellit, A; Hadj-Arab, A; Guessoum, A

    2004-01-01

    An adaptive artificial neural network model for sizing stand-alone photovoltaic systems: Application for isolated sites in Algeria

  9. PHYS 497B, BIOL 497K Systems Biology and Networks

    E-Print Network [OSTI]

    Albert, Réka

    be augmented by additional node and edge information. #12;Food webs describe the energy flow within species & movie or author & paper information? #12;Part of a dating network in a high school Blue: boys Pink in the illustration #12;Word co-usage network in PNAS publications Only words whose usage significantly increased

  10. Equivalent circuits for power system studies on the A-C network calculator 

    E-Print Network [OSTI]

    Kolb, Walter Jean

    1948-01-01

    EQUIVALENT CIRCUITS FOR POWER SYSTEM STUDIES ON THE A-C NETWORK CALCULATOR A Thesis By Walter Jean Kolb August 1948 Approved as to t e an content by Chairman oi omm tee EQUIVALENT CIRCUITS FOR POWER SYSTEM STUDIES ON TRE A-C NETWORK... CALCULATOR A Thesis By Walter Jean Kalb August 1948 EQUIVALENT CIRCUITS FOR POWER SYSTEM STUDIES ON TRE A-C NETWORK CALCULATOR A Thesis Submitted to the Faculty of the Agricultural and Mechanical College of Texas in Partial Fulfi. lment...

  11. CREDO: a Military Decision-Support System based on Credal Networks

    E-Print Network [OSTI]

    Antonucci, Alessandro

    CREDO: a Military Decision-Support System based on Credal Networks Alessandro Antonucci David Huber (Sect. V). These ideas have been implemented in a Java software tool, called CREDO, as part of a project for space security based on a credal network, which have been developed and tested with CREDO during

  12. GAS ANALYSIS SYSTEM COMPOSED OF A SOLID-STATE SENSOR ARRAY AND HYBRID NEURAL NETWORK

    E-Print Network [OSTI]

    Osowski, Stanislaw

    1 GAS ANALYSIS SYSTEM COMPOSED OF A SOLID-STATE SENSOR ARRAY AND HYBRID NEURAL NETWORK STRUCTURE of the solid state sensor array used for the gas analysis. The applied neural network is composed of two parts of the gas components. The obtained results have shown that the array of partially selective sensors

  13. Aalborg Universitet Distributed Secondary Control for Islanded MicroGrids A Networked Control Systems

    E-Print Network [OSTI]

    Vasquez, Juan Carlos

    Aalborg Universitet Distributed Secondary Control for Islanded MicroGrids ­ A Networked Control, Q., Vasquez, J. C., & Guerrero, J. M. (2012). Distributed Secondary Control for Islanded MicroGrids M.; , "Distributed secondary control for islanded MicroGrids - A networked control systems approach

  14. Wireless Networked Lighting Systems for Optimizing Energy Savings and User Satisfaction

    E-Print Network [OSTI]

    Agogino, Alice M.

    Wireless Networked Lighting Systems for Optimizing Energy Savings and User Satisfaction Yao Berkeley, CA 94720 Abstract-Energy savings and user satisfaction are two major design considerations to the high cost of global rewiring. Leveraging the versatility of wireless sensor and actuator network

  15. WSN-SA: Design Foundations for Situational Awareness Systems Based on Sensor Networks

    E-Print Network [OSTI]

    Liu, Mingyan

    WSN-SA: Design Foundations for Situational Awareness Systems Based on Sensor Networks Agnelo R EE - Electrophysics Univ. of Southern California Los Angeles, CA Email: mahta@usc.edu Abstract--WSN-SA is a Wireless Sensor Networks (WSN) framework that is been proposed to support rescue operations in collapsed

  16. PeerCast: Churn-Resilient End System Multicast on Heterogeneous Overlay Networks Jianjun Zhang

    E-Print Network [OSTI]

    Liu, Ling

    P) network are confronted with high churn rates (Saroiu et al., 2002) with nodes enteringTitle: PeerCast: Churn-Resilient End System Multicast on Heterogeneous Overlay Networks Authors-7404 Phone: (706) 542-2737 Fax: (706) 542-2966 Email: laks@cs.uga.edu 1 #12;PeerCast: Churn-Resilient End

  17. The D-Systems Project -Wireless Sensor Networks for Car-Park Management

    E-Print Network [OSTI]

    Sreenan, Cormac J.

    to perform data aggregation, when operating with a limited data delivery time budget. 3. Two new energy that they can be deployed in existing car-parks without having to install new cabling for networkThe D-Systems Project - Wireless Sensor Networks for Car-Park Management J. Barton, J. Buckley, B

  18. Compressed Air System Optimization Improves Production and saves energy at a Satellite Manufacturer

    SciTech Connect (OSTI)

    2002-05-01

    In 2001, a compressed air improvement project was implemented following an audit on the compressed air system at Boeing Satellite Systems (formerly Hughes Space & Communications Company) in Los Angeles, California.

  19. DYNAMIC MANAGEMENT OF NETWORK SYSTEMS Syed Yousaf Shah

    E-Print Network [OSTI]

    Linhardt, Robert J.

    OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi LIST OF FIGURES . . . . . . . . . . . . . 16 3.3 Dynamic Price Based Routing (PBR) . . . . . . . . . . . . . . . . . . . . 17 3 . . . . . . . . . . . . . . . . . . . . 29 3.5 Price Based Routing for Network Resource Management . . . . . . . . . 33 3.6 Concluding

  20. Influence of network topology on cooperative problem-solving systems

    E-Print Network [OSTI]

    Fontanari, José F

    2015-01-01

    The idea of a collective intelligence behind the complex natural structures built by organisms suggests that the organization of social networks is selected so as to optimize problem-solving competence at the group-level. Here we study the influence of the social network topology on the performance of a group of agents whose task is to locate the global maxima of NK fitness landscapes. Agents cooperate by broadcasting messages informing on their fitness and use this information to imitate the fittest agent in their influence networks. In the case those messages convey accurate information on the proximity of the solution (i.e., for smooth fitness landscapes) we find that high connectivity as well as centralization boost the group performance. For rugged landscapes, however, these characteristics are beneficial for small groups only. For large groups, it is advantageous to slow down the information transmission through the network to avoid local maximum traps. Long-range links and modularity have marginal effe...

  1. Modeling and engineering software systems using Petri networks

    E-Print Network [OSTI]

    Visée, Michaël

    2007-01-01

    A model of software applications for business process management based on colored Petri Networks is proposed and the corresponding application development process is exposed. A language is proposed to specify the enabling ...

  2. High Temperature 300°C Directional Drilling System

    SciTech Connect (OSTI)

    Chatterjee, Kamalesh; Aaron, Dick; Macpherson, John

    2015-07-31

    Many countries around the world, including the USA, have untapped geothermal energy potential. Enhanced Geothermal Systems (EGS) technology is needed to economically utilize this resource. Temperatures in some EGS reservoirs can exceed 300°C. To effectively utilize EGS resources, an array of injector and production wells must be accurately placed in the formation fracture network. This requires a high temperature directional drilling system. Most commercial services for directional drilling systems are rated for 175°C while geothermal wells require operation at much higher temperatures. Two U.S. Department of Energy (DOE) Geothermal Technologies Program (GTP) projects have been initiated to develop a 300°C capable directional drilling system, the first developing a drill bit, directional motor, and drilling fluid, and the second adding navigation and telemetry systems. This report is for the first project, “High Temperature 300°C Directional Drilling System, including drill bit, directional motor and drilling fluid, for enhanced geothermal systems,” award number DE-EE0002782. The drilling system consists of a drill bit, a directional motor, and drilling fluid. The DOE deliverables are three prototype drilling systems. We have developed three drilling motors; we have developed four roller-cone and five Kymera® bits; and finally, we have developed a 300°C stable drilling fluid, along with a lubricant additive for the metal-to-metal motor. Metal-to-metal directional motors require coatings to the rotor and stator for wear and corrosion resistance, and this coating research has been a significant part of the project. The drill bits performed well in the drill bit simulator test, and the complete drilling system has been tested drilling granite at Baker Hughes’ Experimental Test Facility in Oklahoma. The metal-to-metal motor was additionally subjected to a flow loop test in Baker Hughes’ Celle Technology Center in Germany, where it ran for more than 100 hours.

  3. Topic 7 : Smart Grid Privacy and Security 1Networking and Distributed Systems

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    Topic 7 : Smart Grid Privacy and Security 1Networking and Distributed Systems Department Tech UniversityCommunications and Control in Smart Grid 2 · Smart Meter Privacy · Concerns · Possible Solutions · Smart Grid Security · Load Altering Attacks · False Data Injection Attacks · Impact

  4. A Benchmarking Platform For Network-On-Chip (NOC) Multiprocessor System-On- Chips 

    E-Print Network [OSTI]

    Malave-Bonet, Javier

    2012-02-14

    BENCHMARKING PLATFORM FOR NETWORK-ON-CHIP (NOC) MULTIPROCESSOR SYSTEM-ON-CHIPS A Thesis by JAVIER JOSE MALAVE-BONET 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 December 2010 Major Subject: Computer Engineering A BENCHMARKING PLATFORM FOR NETWORK-ON-CHIP (NOC) MULTIPROCESSOR SYSTEM-ON-CHIPS A Thesis by JAVIER JOSE MALAVE-BONET Submitted to the Office of Graduate...

  5. HPNAIDM: The High-Performance Network Anomaly/Intrusion Detection and Mitigation System

    SciTech Connect (OSTI)

    Chen, Yan [Northwesten University] [Northwesten University

    2013-12-05

    Identifying traffic anomalies and attacks rapidly and accurately is critical for large network operators. With the rapid growth of network bandwidth, such as the next generation DOE UltraScience Network, and fast emergence of new attacks/virus/worms, existing network intrusion detection systems (IDS) are insufficient because they: • Are mostly host-based and not scalable to high-performance networks; • Are mostly signature-based and unable to adaptively recognize flow-level unknown attacks; • Cannot differentiate malicious events from the unintentional anomalies. To address these challenges, we proposed and developed a new paradigm called high-performance network anomaly/intrustion detection and mitigation (HPNAIDM) system. The new paradigm is significantly different from existing IDSes with the following features (research thrusts). • Online traffic recording and analysis on high-speed networks; • Online adaptive flow-level anomaly/intrusion detection and mitigation; • Integrated approach for false positive reduction. Our research prototype and evaluation demonstrate that the HPNAIDM system is highly effective and economically feasible. Beyond satisfying the pre-set goals, we even exceed that significantly (see more details in the next section). Overall, our project harvested 23 publications (2 book chapters, 6 journal papers and 15 peer-reviewed conference/workshop papers). Besides, we built a website for technique dissemination, which hosts two system prototype release to the research community. We also filed a patent application and developed strong international and domestic collaborations which span both academia and industry.

  6. A SURVEY OF RECENT RESULTS IN NETWORKED CONTROL SYSTEMS Jo~ao P. Hespanha Payam Naghshtabrizi Yonggang Xu

    E-Print Network [OSTI]

    Liebling, Michael

    -purpose shared network to connect spatially distributed elements results in flexible architectures and generally-endurance energy-limited systems such as sensor networks, underwater vehicles, and large arrays of micro1 A SURVEY OF RECENT RESULTS IN NETWORKED CONTROL SYSTEMS Jo~ao P. Hespanha Payam Naghshtabrizi

  7. Mobile Sensor Networks for Leak and Backflow Detection in Water Distribution Systems

    E-Print Network [OSTI]

    Shihada, Basem

    Mobile Sensor Networks for Leak and Backflow Detection in Water Distribution Systems M. Agumbe detection are essential aspects of Water Distribution System (WDS) monitoring. Most existing solutions for leak detection in water distribution systems focus on the placement of expensive static sensors located

  8. Autonomous Adaptive Resource Management in Sensor Network Systems for Environmental Monitoring

    E-Print Network [OSTI]

    Panangadan, Anand

    1 Autonomous Adaptive Resource Management in Sensor Network Systems for Environmental Monitoring rates, and routing of data) that impact the utilization of the system resources (such as energy reserves is illustrated on a coastal monitoring and forecast system that is in operation in the New York harbor

  9. MODEL-BASED NETWORKED CONTROL SYSTEMS Luis A. Montestruque, Panos J. Antsaklis

    E-Print Network [OSTI]

    Antsaklis, Panos

    MODEL-BASED NETWORKED CONTROL SYSTEMS ­ STABILITY Luis A. Montestruque, Panos J. Antsaklis to interconnect the different components in an industrial control system is rapidly increasing. For example of different subsystems to control make the use of single wires to interconnect the control system

  10. Introduction to Information Systems Hardware basics, computer networks and architectures, proto-

    E-Print Network [OSTI]

    Kallenrode, May-Britt

    Teaching Introduction to Information Systems Hardware basics, computer networks and architectures on a use case from the information systems practice by making use of already acquired methods and concepts and documentation. Contact Prof. Dr. Frank Teuteberg c/o Univserity of Osnabrueck Accounting and Information Systems

  11. Software systems as complex networks: Structure, function, and evolvability of software collaboration graphs

    E-Print Network [OSTI]

    Myers, Chris

    Software systems as complex networks: Structure, function, and evolvability of software York 14853, USA Received 27 May 2003; published 20 October 2003 Software systems emerge from mere software collaboration graphs contained within several open-source soft- ware systems, and have found them

  12. A Practical Theory of Micro-Solar Power Sensor Networks JAEIN JEONG, Cisco Systems

    E-Print Network [OSTI]

    California at Berkeley, University of

    9 A Practical Theory of Micro-Solar Power Sensor Networks JAEIN JEONG, Cisco Systems DAVID CULLER, University of California, Berkeley Building a micro-solar power system is challenging because it must address long-term system behavior under highly variable solar energy and consider a large design space. We

  13. A review of "Versions of Blackness: Key Texts on Slavery from the Seventeenth Century" edited by Derek Hughes 

    E-Print Network [OSTI]

    M'Baye, Babacar

    2009-01-01

    the Seventeenth Century. Cambridge, UK: Cambridge UP, 2007. V + 381 pp. Paperback $24. Review by babacar m?baye, kent state university Derek Hughes? Versions of Blackness: Key Texts on Slavery from the Seventeenth Century brings together important European... Europeans either enslaved, massacred, or colonized The book?s major objective is to resist the revisionist practice of interpreting the past mainly through the lenses of modern theories of racial interactions between blacks and whites. Opposing...

  14. Cyber-Physical System Security With Deceptive Virtual Hosts for Industrial Control Networks

    SciTech Connect (OSTI)

    Vollmer, Todd; Manic, Milos

    2014-05-01

    A challenge facing industrial control network administrators is protecting the typically large number of connected assets for which they are responsible. These cyber devices may be tightly coupled with the physical processes they control and human induced failures risk dire real-world consequences. Dynamic virtual honeypots are effective tools for observing and attracting network intruder activity. This paper presents a design and implementation for self-configuring honeypots that passively examine control system network traffic and actively adapt to the observed environment. In contrast to prior work in the field, six tools were analyzed for suitability of network entity information gathering. Ettercap, an established network security tool not commonly used in this capacity, outperformed the other tools and was chosen for implementation. Utilizing Ettercap XML output, a novel four-step algorithm was developed for autonomous creation and update of a Honeyd configuration. This algorithm was tested on an existing small campus grid and sensor network by execution of a collaborative usage scenario. Automatically created virtual hosts were deployed in concert with an anomaly behavior (AB) system in an attack scenario. Virtual hosts were automatically configured with unique emulated network stack behaviors for 92% of the targeted devices. The AB system alerted on 100% of the monitored emulated devices.

  15. Cyber-Physical System Security With Deceptive Virtual Hosts for Industrial Control Networks

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

    Vollmer, Todd; Manic, Milos

    2014-05-01

    A challenge facing industrial control network administrators is protecting the typically large number of connected assets for which they are responsible. These cyber devices may be tightly coupled with the physical processes they control and human induced failures risk dire real-world consequences. Dynamic virtual honeypots are effective tools for observing and attracting network intruder activity. This paper presents a design and implementation for self-configuring honeypots that passively examine control system network traffic and actively adapt to the observed environment. In contrast to prior work in the field, six tools were analyzed for suitability of network entity information gathering. Ettercap, anmore »established network security tool not commonly used in this capacity, outperformed the other tools and was chosen for implementation. Utilizing Ettercap XML output, a novel four-step algorithm was developed for autonomous creation and update of a Honeyd configuration. This algorithm was tested on an existing small campus grid and sensor network by execution of a collaborative usage scenario. Automatically created virtual hosts were deployed in concert with an anomaly behavior (AB) system in an attack scenario. Virtual hosts were automatically configured with unique emulated network stack behaviors for 92% of the targeted devices. The AB system alerted on 100% of the monitored emulated devices.« less

  16. Achievable Rates for Multicell Systems with Femtocells and Network MIMO

    E-Print Network [OSTI]

    Erkip, Elza

    to contain only the customer's premises, thus allowing transmission with smaller powers and the possibility- tocells in open-access mode provide an asset that the network designer can exploit to manage) [2][3] creates clusters of macrocells for joint coding/ decoding in order to better manage inter

  17. AUTONOMOUS UNDERSEA SYSTEMS NETWORK (AUSNET) Development Status Update

    E-Print Network [OSTI]

    be adopted by the AUV community to enable rapidly achievable and cost effective interoperability. AUSNET that exploits the data present in a mobile ad-hoc network to support the application in new ways. The Phase II capability in the CADCON environment. 4) Transition the AUSNET capability into a live Solar AUV. 5) Enable

  18. Context & Environmental Aware Wireless Sensor Networks for Reconfigurable Manufacturing Systems

    E-Print Network [OSTI]

    Howitt, Ivan

    for designing a wireless network to support the communication requirements for RMS is presented. Keywords market, plant supervisors and production managers need to maintain awareness of the production process these increasing demands for industrial communications. In Figure 1, a scenario is illustrated where a hierarchal

  19. The Power of Networks: Building a Learning Healthcare System

    E-Print Network [OSTI]

    Nicholson, Bruce J.

    · Define PracticeBased Research Networks (PBRNs) · Examine types of research that can be embedded research results Types of Research Conducted in PBRNs · Descriptive · Observational · Experimental ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- · PCT Pragmatic Clinical Trials Types of T2 T3 T4 Research Comparative Effectiveness Research (CER

  20. CONSIDERATION OF SECURITY IN TELEHEALTH WIRELESS SENSOR NETWORK MONITORING SYSTEMS

    E-Print Network [OSTI]

    in the security of data transmission through wire- less sensor networks (WSN). Each individual node in a WSN. The Flooding Time Synchronization Protocol (FTSP) [5] is proposed to ensure time sychrony in the telehealh WSN to investigate the effects of injecting bad time synchroniza- tion messages into a WSN implemented with the FTSP

  1. Hybrid Network Simulation for the ATLAS Trigger and Data Acquisition (TDAQ) System

    E-Print Network [OSTI]

    Bonaventura, Matias Alejandro; The ATLAS collaboration; Castro, Rodrigo Daniel; Foguelman, Daniel Jacob

    2015-01-01

    The poster shows the ongoing research in the ATLAS TDAQ group in collaboration with the University of Buenos Aires in the area of hybrid data network simulations. he Data Network and Processing Cluster filters data in real-time, achieving a rejection factor in the order of 40000x and has real-time latency constrains. The dataflow between the processing units (TPUs) and Readout System (ROS) presents a “TCP Incast”-type network pathology which TCP cannot handle it efficiently. A credits system is in place which limits rate of queries and reduces latency. This large computer network, and the complex dataflow has been modelled and simulated using a PowerDEVS, a DEVS-based simulator. The simulation has been validated and used to produce what-if scenarios in the real network. Network Simulation with Hybrid Flows: Speedups and accuracy, combined • For intensive network traffic, Discrete Event simulation models (packet-level granularity) soon becomes prohibitive: Too high computing demands. • Fluid Flow simul...

  2. Neural network based design of cellular manufacturing systems 

    E-Print Network [OSTI]

    Ramachandran, Satheesh

    1990-01-01

    , India Chair of Advisory Committee: Dr. Cesar O. Malave A neural network based on a competitive learning rule when trained with the part machine incidence matrix of a large number of parts classifies the parts and machines into part families... and machine cells respectively. This classification compares well with the classical clustering techniques. The steady state values of the activations and interconnecting strengths enables easier identification of the part families, machine cells...

  3. Systems Biology of Microbiota Metabolites and Adipocyte Transcription Factor Network 

    E-Print Network [OSTI]

    Choi, Kyungoh

    2013-07-17

    (16, 17). Therefore, it is important to understand the dynamics and interaction between different members of the regulatory network for modulating complex phenotypes such as lipid balance in adipocytes. Phylogenetic (16S rRNA) sequencing... such as Crohn?s disease and dysbiosis of the intestinal microbiota (22). For example, a clinical metabolomics study suggested that poor utilization of tryptophan and an imbalance of tryptophan-derived microbiota metabolites correlated strongly with ileal...

  4. Algorithms, Protocols & Systems for Remote Observation Using Networked Robotic Cameras 

    E-Print Network [OSTI]

    Qin, Ni

    2010-01-16

    for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Dezhen Song Committee Members, Ricardo Gutierrez-Osuna Dmitri Loguinov Ergun Akleman Head of Department, Valerie E. Taylor May 2008 Major Subject: Computer Science iii ABSTRACT Algorithms... in remote observation using networked robotic cameras. v To my lovely cat Maomao, my dear family Yu and Amy, and my parents vi ACKNOWLEDGMENTS I would like to thank my committee chair, Dr. Dezhen Song, and my committee members, Dr. Gutierrez-Osuna, Dr...

  5. SG Network System Requirements Specification- Interim Release 3 |

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterestedReplacement-2-AA-1 SECTION J APPENDIX ADepartment of Energy SG Network

  6. Reconstruction of Flaw Profiles Using Neural Networks and Multi-Frequency Eddy Current System

    SciTech Connect (OSTI)

    Chady, T.; Caryk, M. [Technical University of Szczecin, al. Piastow 19, 70-310 Szczecin (Poland)

    2005-04-09

    The objective of this paper is to identify profiles of flaws in conducting plates. To solve this problem, application of a multi-frequency eddy current system (MFES) and artificial neural networks is proposed. Dynamic feed-forward neural networks with various architectures are investigated. Extended experiments with all neural models are carried out in order to select the most promising configuration. Data utilized for the experiments were obtained from the measurements performed on the Inconel plates with EDM flaws.

  7. Automated Measurement and Signaling Systems for the Transactional Network

    SciTech Connect (OSTI)

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

    2013-12-31

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

  8. A Neural Network Based Adaptive Sliding Mode Controller: Application to a Power System Stabilizer

    E-Print Network [OSTI]

    Al-Duwaish, Hussain N.

    A Neural Network Based Adaptive Sliding Mode Controller: Application to a Power System Stabilizer University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia * Corresponding Author- e-mail: hduwaish gains when the operating point changes. The proposed method has been applied to a power system

  9. Multi-settlement Systems for Electricity Markets: Zonal Aggregation under Network Uncertainty and Market Power1

    E-Print Network [OSTI]

    Oren, Shmuel S.

    1 Multi-settlement Systems for Electricity Markets: Zonal Aggregation under Network Uncertainty alternative market designs for a multi- settlement system for electricity in which the resolution designs. 1. Introduction Over the past decade, wholesale electricity markets have gone through fundamental

  10. Artificial Cognitive Systems: From VLSI Networks of Spiking Neurons to Neuromorphic Cognition

    E-Print Network [OSTI]

    this challenge. Specifically, we show how VLSI networks of spiking neurons with spike-based plasticity mechanisms, in such types of functions, is primarily attributable to the way the elementary devices are used in the system these issues by designing and fabricating electronic neural systems whose architecture and design principles

  11. GLOBAL OPTIMIZATION OF MULTIPHASE FLOW NETWORKS IN OIL AND GAS PRODUCTION SYSTEMS

    E-Print Network [OSTI]

    Johansen, Tor Arne

    1 GLOBAL OPTIMIZATION OF MULTIPHASE FLOW NETWORKS IN OIL AND GAS PRODUCTION SYSTEMS MSc. Hans, NTNU, Trondheim, Norway Abstract A mathematical program for finding the optimal oil production rates in an oil production system is developed. Each well may be manipulated by injecting lift gas and adjusting

  12. An Efficient Energy Management System for Android Phone Using Bayesian Networks

    E-Print Network [OSTI]

    Cho, Sung-Bae

    An Efficient Energy Management System for Android Phone Using Bayesian Networks Young-Seol Lee, proximity, light and orientation sensors for context-awareness. Energy-efficient battery management systems, it becomes an issue to develop the techniques for efficient energy management on a mobile phone [2, 3, 4

  13. TESLA-Based Defense Against Pollution Attacks in P2P Systems with Network Coding

    E-Print Network [OSTI]

    Markopoulou, Athina

    TESLA-Based Defense Against Pollution Attacks in P2P Systems with Network Coding Anh Le, Athina and time asymmetry (as in TESLA [1]) to provide source authentication for the detection scheme and non; pollution; detection; identification; TESLA; homomorphic MAC. I. INTRODUCTION Peer-to-peer (P2P) systems

  14. Towards Embedded Wireless-Networked Intelligent Daylighting Systems for Commercial Buildings

    E-Print Network [OSTI]

    Agogino, Alice M.

    Towards Embedded Wireless-Networked Intelligent Daylighting Systems for Commercial Buildings Yao, daylighting systems are not widely used in the commercial office building. Barriers prohibiting adoption) `Smart Dust motes' wireless platforms is explored. Due to their small size, they can be placed directly

  15. Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks

    E-Print Network [OSTI]

    California at Berkeley, University of

    Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks Jaein Jeong Xiaofan or to redistribute to lists, requires prior specific permission. #12;Design and Analysis of Micro-Solar Power Systems. Several micro-solar powered designs have been developed to address this important problem but little

  16. A component-based approach to the design of networked control systems

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    the rest of the systems, they can be developed and tested separately and integrated later-care, industrial automation, power distribution, rescue operations and smart buildings. Many of these applications Integrated Project Reconfigurable Ubiq- uitous Networked Embedded Systems (RUNES) [8] brings together 21

  17. A neural network based artificial vision system for licence plate recognition Sorin Draghici, Dept. of Computer Science, Wayne State University,

    E-Print Network [OSTI]

    Draghici, Sorin

    A neural network based artificial vision system for licence plate recognition Sorin Draghici, Dept based artificial vision system able to analyse the image of a car given by a camera, locate plate, real-world application #12;A neural network based artificial vision system for licence plate

  18. Network

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you notHeatMaRIEdioxide capture CSNationalNational UserNaval TheNetwork

  19. System and Incentive Design in Socio-technical Networks

    E-Print Network [OSTI]

    Zhang, Yu

    2013-01-01

    Systems for Enhanced Cyber-security Investments,” IEEEsocial computing, and cyber- security. 1.2 Key Challenges

  20. Disruptions in Interdependent Infrastructure Systems: A Network Flows Approach1

    E-Print Network [OSTI]

    Mitchell, John E.

    system affects one or more other infrastructure systems. The approach is to model the salient elements of these systems and provide decision makers with a means to manipulate the set of models, i.e. a decision support (including roads, bridges, water and rail); energy (including electric power, gas and liquid fuels

  1. System, apparatus and methods to implement high-speed network analyzers

    DOE Patents [OSTI]

    Ezick, James; Lethin, Richard; Ros-Giralt, Jordi; Szilagyi, Peter; Wohlford, David E

    2015-11-10

    Systems, apparatus and methods for the implementation of high-speed network analyzers are provided. A set of high-level specifications is used to define the behavior of the network analyzer emitted by a compiler. An optimized inline workflow to process regular expressions is presented without sacrificing the semantic capabilities of the processing engine. An optimized packet dispatcher implements a subset of the functions implemented by the network analyzer, providing a fast and slow path workflow used to accelerate specific processing units. Such dispatcher facility can also be used as a cache of policies, wherein if a policy is found, then packet manipulations associated with the policy can be quickly performed. An optimized method of generating DFA specifications for network signatures is also presented. The method accepts several optimization criteria, such as min-max allocations or optimal allocations based on the probability of occurrence of each signature input bit.

  2. Fuzzy neural network pattern recognition algorithm for classification of the events in power system networks 

    E-Print Network [OSTI]

    Vasilic, Slavko

    2004-09-30

    This dissertation introduces advanced artificial intelligence based algorithm for detecting and classifying faults on the power system transmission line. The proposed algorithm is aimed at substituting classical relays ...

  3. A Dirichlet reputation system in reliable routing of wireless ad hoc network

    SciTech Connect (OSTI)

    Yang, Dr. Li [University of Tennessee, Knoxville (UTK); Cui, Xiaohui [ORNL; Cemerlic, Alma [University of Tennessee, Knoxville (UTK)

    2010-01-01

    Ad hoc networks are very helpful in situations when no fixed network infrastructure is available, such as natural disasters and military conflicts. In such a network, all wireless nodes are equal peers simultaneously serving as both senders and routers for other nodes. Therefore, how to route packets through reliable paths becomes a fundamental problems when behaviors of certain nodes deviate from wireless ad hoc routing protocols. We proposed a novel Dirichlet reputation model based on Bayesian inference theory which evaluates reliability of each node in terms of packet delivery. Our system offers a way to predict and select a reliable path through combination of first-hand observation and second-hand reputation reports. We also proposed moving window mechanism which helps to adjust ours responsiveness of our system to changes of node behaviors. We integrated the Dirichlet reputation into routing protocol of wireless ad hoc networks. Our extensive simulation indicates that our proposed reputation system can improve good throughput of the network and reduce negative impacts caused by misbehaving nodes.

  4. Artificial Neural Network for Optimized Power System Management

    E-Print Network [OSTI]

    OLeary, Daniel Albert

    2015-01-01

    smart grid to influence distributed generation power systems reduced down time and costssmart grid with flexible EV charging, scientists used PSO algorithms to minimize cost

  5. Artificial Neural Network for Optimized Power System Management

    E-Print Network [OSTI]

    OLeary, Daniel Albert

    2015-01-01

    solar energy sources/wind turbine systems integrated toof solar panels and wind turbines. Increases in demand forsolar panels and wind turbines that are less expensive and

  6. Artificial Neural Network for Optimized Power System Management

    E-Print Network [OSTI]

    OLeary, Daniel Albert

    2015-01-01

    of a photovoltaic module. Renewable Energy, [15] Kostasonline, interactive renewable energy laboratory. Education,man- agement system for a renewable based microgrid with a

  7. On Cyber Security for Networked Control Systems Saurabh Amin

    E-Print Network [OSTI]

    random failures and secu- rity attacks. Cyber-security of Supervisory Control and Data Acquisition (SCADA, cyber-security assessment for SCADA systems is performed based on well-defined attacker and defender objectives. The mathematical model of SCADA systems considered in this work has two control levels

  8. Security and Survivability in Unbounded Networked Systems Axel Krings*

    E-Print Network [OSTI]

    Krings, Axel W.

    security and survivability concerns are often equated with applying certain maintenance operations, e.g., frequent operating system updating, subscription to filtering software like virus checkers and spam filters and intrusion tolerance, and economic or statistical modeling of secure/survivable systems. We are very pleased

  9. Study of a transient identification system using a neural network for a PWR plant

    SciTech Connect (OSTI)

    Ishihara, Yoshinao; Kasai, Masao; Kambara, Masayuki [Mitsubishi Heavy Industries, Ltd., Yokohama (Japan); Mitsuda, Hiromichi; Kurata, Toshikazu; Shirosaki, Hidekazu [Inst. of Nuclear Safety System, Inc., Kyoto (Japan)

    1996-08-01

    This paper presents the procedure and results of a system for identifying PWR plant abnormal events, which uses neural network techniques. The neural network recognizes the abnormal event from the patterns of the transient changes of analog data from plant parameters when they deport from their normal state. For the identification of abnormal events in this study, events that cause a reactor to scram during power operation were selected as the design base events. The test data were prepared by simulating the transients on a compact PWR simulator. The simulation data were analyzed to determine how the plant parameters respond after the occurrence of a transient. A method of converting the pattern of the transient changes into characteristic parameters by fitting the data to pre-determined functions was developed. These characteristic parameters were used as the input data to the neural network. The neural network learning procedure used a generalized delta rule, namely a back-propagation algorithm. The neural network can identify the type of an abnormal event from a limited set of events by using these characteristic parameters obtained from the pattern of the changes in the analog data. From the results of this application of a neural network, it was concluded that it would be possible to use the method to identify abnormal events in a nuclear power plant.

  10. Abstract--The electric power system has become a very complicated network at present because of re-structuring and

    E-Print Network [OSTI]

    Lai, Hong-jian

    's intrinsic network problems. Conventionally, many applications in power system were solved by human actions1 Abstract--The electric power system has become a very complicated network at present because to massive cascading effects affecting power supply and power quality. An overall systematic solution

  11. Decentralized Control of Networked Systems: Information Asymmetries and Limitations

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    as they appear in many emerging applications, such as intelligent transportation systems, smart grids, and energy continuous support of my study and research, and also for his patience, motivation, enthusiasm, and immense

  12. CCHP System with Interconnecting Cooling and Heating Network 

    E-Print Network [OSTI]

    Fu, L.; Geng, K.; Zheng, Z.; Jiang, Y.

    2006-01-01

    The consistency between building heating load, cooling load and power load are analyzed in this paper. The problem of energy waste and low equipment usage in a traditional CCHP (combined cooling, heating and power) system with generated electricity...

  13. Using Bayesian Network to Develop Drilling Expert Systems 

    E-Print Network [OSTI]

    Alyami, Abdullah

    2012-10-19

    engineers or as a consultation system in various drilling engineering concepts such as drilling fluids, cementing, completion, well control, and underbalanced drilling practices. This method is done by proposing a set of guidelines for the optimal drilling...

  14. Markov Decision Processes for Control of a Sensor Network-based Health Monitoring System

    E-Print Network [OSTI]

    Panangadan, Anand

    @usc.edu, talukder@usc.edu Abstract Optimal use of energy is a primary concern in field- deployable sensor networks in dynamic environments by minimizing energy utilization while not compro- mising overall performance of the system. At every control step, the MDP controller varies the frequency at which the data is collected

  15. Geophysical Surveying with Marine Networked Mobile Robotic Systems: The WiMUST Project

    E-Print Network [OSTI]

    Jesus, Sérgio M.

    Geophysical Surveying with Marine Networked Mobile Robotic Systems: The WiMUST Project [Extended for geophysical surveying. This paper describes the main features of the envisaged developments, with a focus.00. Figure 1: Conventional geophysical surveying using long lines of towed streamers team. Such teams

  16. Genetic algorithms for delays evaluation in networked automation systems , S. Amari, J-J. Lesage

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    communication technology at different levels in the industrial organizations; management and automation. Currently, many automation producers and alliances developed their own industrial Ethernet standard (NeumannGenetic algorithms for delays evaluation in networked automation systems B. Addad n , S. Amari, J

  17. Model-based congestion analysis during outage and system reconfiguration in GPRS networks

    E-Print Network [OSTI]

    Firenze, Universitŕ degli Studi di

    Model-based congestion analysis during outage and system reconfiguration in GPRS networks overlapping. In particular, we consider that one of the two cells is affected by an outage and we analyze resources become suddenly unavailable due to malfunctions. The occurrence of an outage is the typical event

  18. PAN: A High-Performance Active Network Node Supporting Multiple Mobile Code Systems

    E-Print Network [OSTI]

    , not specialized hardware Page 4 #12;Obtaining High Performance Approach: Look at the active processing critical copies (bring capsule data into cache) Code interpretation, loading, or translation in critical path UserPAN: A High-Performance Active Network Node Supporting Multiple Mobile Code Systems Erik Nygren

  19. Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks

    E-Print Network [OSTI]

    California at Berkeley, University of

    Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks Jaein Jeong, Xiaofan and the power they obtain from their environment. Several micro-solar powered designs have been developed a taxonomy of the micro-solar design space identifying key components, design choices, interactions

  20. DESIGNING A REAL TIME SYSTEM FOR CAR NUMBER DETECTION USING DISCRETE HOPFIELD NETWORK

    E-Print Network [OSTI]

    Mishra, Prabhat

    DESIGNING A REAL TIME SYSTEM FOR CAR NUMBER DETECTION USING DISCRETE HOPFIELD NETWORK A.BANERJEE1@yahoo.co.in Abstract The paper addresses a novel scheme for detection of car numbers from its rear end number plates. The work has extensive applications in automatic identification of cars, responsible for Cox pollution

  1. An FPGA Bridge Preserving Traffic Quality of Service for On-Chip Network-Based Systems

    E-Print Network [OSTI]

    An FPGA Bridge Preserving Traffic Quality of Service for On-Chip Network-Based Systems Ashkan with their own NoC, and each of which is implemented on a separate FPGA board. Multiple SoC ASICs can be bridged the required quality of service (QoS). In this paper, we investigate bridging schemes at different levels

  2. Electrical-Thermal Co-analysis for Power Delivery Networks in 3D System Integration

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    Electrical-Thermal Co-analysis for Power Delivery Networks in 3D System Integration Jianyong Xie1 Rubin3 1 School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332 2 IBM Package Design, Development, and Electrical Services Group, Poughkeepsie, N.Y. 12601 3 IBM T

  3. Collective Learning for the Emergence of Social Norms in Networked Multiagent Systems

    E-Print Network [OSTI]

    Zhang, Minjie

    the impact of agent local collective behaviors on the emergence of social norms in a number of differentCollective Learning for the Emergence of Social Norms in Networked Multiagent Systems Chao Yu, Minjie Zhang, Senior Member, IEEE, and Fenghui Ren Abstract--Social norms such as social rules

  4. A High Performance Computing Network and System Simulator for the Power Grid: NGNS^2

    SciTech Connect (OSTI)

    Villa, Oreste; Tumeo, Antonino; Ciraci, Selim; Daily, Jeffrey A.; Fuller, Jason C.

    2012-11-11

    Designing and planing next generation power grid sys- tems composed of large power distribution networks, monitoring and control networks, autonomous generators and consumers of power requires advanced simulation infrastructures. The objective is to predict and analyze in time the behavior of networks of systems for unexpected events such as loss of connectivity, malicious attacks and power loss scenarios. This ultimately allows one to answer questions such as: “What could happen to the power grid if ...”. We want to be able to answer as many questions as possible in the shortest possible time for the largest possible systems. In this paper we present a new High Performance Computing (HPC) oriented simulation infrastructure named Next Generation Network and System Simulator (NGNS2 ). NGNS2 allows for the distribution of a single simulation among multiple computing elements by using MPI and OpenMP threads. NGNS2 provides extensive configuration, fault tolerant and load balancing capabilities needed to simulate large and dynamic systems for long periods of time. We show the preliminary results of the simulator running approximately two million simulated entities both on a 64-node commodity Infiniband cluster and a 48-core SMP workstation.

  5. Assessing the cumulative environmental impact of hydropower construction on river systems based on energy network model

    E-Print Network [OSTI]

    Fath, Brian D.

    Assessing the cumulative environmental impact of hydropower construction on river systems based 2014 Keywords: Hydropower construction Sustainable energy development Environmental impact assessment Energy network model a b s t r a c t Hydropower is the major renewable energy source for many nations

  6. Health Informatics Systemic changes enabled by electronic record keeping, networked databases, and

    E-Print Network [OSTI]

    Hill, Wendell T.

    Health Informatics Systemic changes enabled by electronic record keeping, networked databases, distribute, and consume health information. But the healthcare industry is still far behind other sectors heath initiatives. uestions and How do consumers find and process health information on the Internet

  7. Data Stream Query Optimization Across System Boundaries of Server and Sensor Network

    E-Print Network [OSTI]

    Lindner, Wolfgang

    (SNs). Such networks may consist of small battery-powered motes with possibly lossy wireless of the motes. This paper fo- cusses on such SNs of battery-powered motes. SNQPs act as a natural data source The Borealis system [11] uses the box-and-arrow paradigm to specify the data flow. A box represents a query

  8. Fault-tolerant battery system employing intra-battery network architecture

    DOE Patents [OSTI]

    Hagen, Ronald A. (Stillwater, MN); Chen, Kenneth W. (Fair Oaks, CA); Comte, Christophe (Montreal, CA); Knudson, Orlin B. (Vadnais Heights, MN); Rouillard, Jean (Saint-Luc, CA)

    2000-01-01

    A distributed energy storing system employing a communications network is disclosed. A distributed battery system includes a number of energy storing modules, each of which includes a processor and communications interface. In a network mode of operation, a battery computer communicates with each of the module processors over an intra-battery network and cooperates with individual module processors to coordinate module monitoring and control operations. The battery computer monitors a number of battery and module conditions, including the potential and current state of the battery and individual modules, and the conditions of the battery's thermal management system. An over-discharge protection system, equalization adjustment system, and communications system are also controlled by the battery computer. The battery computer logs and reports various status data on battery level conditions which may be reported to a separate system platform computer. A module transitions to a stand-alone mode of operation if the module detects an absence of communication connectivity with the battery computer. A module which operates in a stand-alone mode performs various monitoring and control functions locally within the module to ensure safe and continued operation.

  9. A review of "Hospital Politics in Seventeenth-Century France: The Crown, Urban Elites and the Poor" by Tim McHugh 

    E-Print Network [OSTI]

    Broomhill, Susan

    2008-01-01

    stream_source_info Tim McHugh.pdf.txt stream_content_type text/plain stream_size 12399 Content-Encoding ISO-8859-1 stream_name Tim McHugh.pdf.txt Content-Type text/plain; charset=ISO-8859-1 242 s e v e n t e e n t h -c e... n t u r y n e w s ater itself. Her study attends to every one of Corneille?s thirty-three plays (including Psych?), some in greater detail than others, but it is the close analyses of particular plays?Attila, La Suite du Menteur, Cinna, ?dipe...

  10. Intelligent Control via Wireless Sensor Networks for Advanced Coal Combustion Systems

    SciTech Connect (OSTI)

    Aman Behal; Sunil Kumar; Goodarz Ahmadi

    2007-08-05

    Numerical Modeling of Solid Gas Flow, System Identification for purposes of modeling and control, and Wireless Sensor and Actor Network design were pursued as part of this project. Time series input-output data was obtained from NETL's Morgantown CFB facility courtesy of Dr. Lawrence Shadle. It was run through a nonlinear kernel estimator and nonparametric models were obtained for the system. Linear and first-order nonlinear kernels were then utilized to obtain a state-space description of the system. Neural networks were trained that performed better at capturing the plant dynamics. It is possible to use these networks to find a plant model and the inversion of this model can be used to control the system. These models allow one to compare with physics based models whose parameters can then be determined by comparing them against the available data based model. On a parallel track, Dr. Kumar designed an energy-efficient and reliable transport protocol for wireless sensor and actor networks, where the sensors could be different types of wireless sensors used in CFB based coal combustion systems and actors are more powerful wireless nodes to set up a communication network while avoiding the data congestion. Dr. Ahmadi's group studied gas solid flow in a duct. It was seen that particle concentration clearly shows a preferential distribution. The particles strongly interact with the turbulence eddies and are concentrated in narrow bands that are evolving with time. It is believed that observed preferential concentration is due to the fact that these particles are flung out of eddies by centrifugal force.

  11. Network Upgrade for the SLC: Control System Modifications

    SciTech Connect (OSTI)

    Crane, M.; Mackenzie, R.; Sass, R.; Himel, T.; /SLAC

    2011-09-09

    Current communications between the SLAC Linear Collider control system central host and the SLCmicros is built upon the SLAC developed SLCNET communication hardware and protocols. We will describe how the Internet Suite of protocols (TCP/IP) are used to replace the SLCNET protocol interface. The major communication pathways and their individual requirements are described. A proxy server is used to reduce the number of total system TCP/IP connections. The SLCmicros were upgraded to use Ethernet and TCP/IP as well as SLCNET. Design choices and implementation experiences are addressed.

  12. Control of synchronization in coupled neural systems by time-delayed feedback

    E-Print Network [OSTI]

    Philipp Hoevel; Markus A. Dahlem; Eckehard Schoell

    2008-09-04

    We discuss the synchronization of coupled neurons which are modelled as FitzHugh-Nagumo systems. As smallest entity in a larger network, we focus on two diffusively coupled subsystems, which can be interpreted as two mutually interacting neural populations. Each system is prepared in the excitable regime and subject to independent random fluctuations. In order to modify their cooperative dynamics, we apply a local external stimulus in form of an extended time-delayed feedback loop that involves multiple delays weighted by a memory parameter and investigate if local control applied to a subsystem can allow one to steer the global cooperative dynamics. Depending on the choice of this new control parameter, we investigate different measures to quantify the influence on synchronization: ratio of interspike intervals, power spectrum, interspike interval distribution, and phase synchronization intervals. We show that the control method is more robust for increasing memory parameter.

  13. Disruptions in Interdependent Infrastructure Systems: A Network Flows Approach1

    E-Print Network [OSTI]

    Mitchell, John E.

    (including roads, bridges, water and rail); energy (including electric power, gas and liquid fuels in order to provide services, such as power delivery, voice and data transmission. Each system's components can only be used to support services of their respective group (communications lines cannot be used

  14. Localized Pipeline Encroachment Detector System Using Sensor Network 

    E-Print Network [OSTI]

    Ou, Xiaoxi 1986-

    2011-08-08

    Detection of encroachment on pipeline right-of-way is important for pipeline safety. An effective system can provide on-time warning while reducing the probability of false alarms. There are a number of industry and academic developments to tackle...

  15. Effective Network Management via System-Wide Coordination and Optimization

    E-Print Network [OSTI]

    and deployment costs for operators. Despite this increased complexity and cost, the incremental nature within device-centric config- urations. This dissertation argues for a clean-slate system-wide approach as a great sounding board for different ideas. I hope that some of his energy and enthusiasm have rubbed off

  16. KERBEROS: AN AUTHENTICATION SERVICE FOR OPEN NETWORK SYSTEMS

    E-Print Network [OSTI]

    Pâris, Jehan-François

    consists of a Kerberos server and a ticket-granting server (TGS). Once users are authenticated by Kerberos, they receive a TGS ticket. This ticket will allow them to request from the TGS tickets for all the other servers. Kerberos keeps keys for (a) all the system users and (b) the ticket-granting server (TGS

  17. Investigation of optical wireless systems for indoor broadband networks

    E-Print Network [OSTI]

    Kouroupetroglou, Georgios

    in the light emitting diodes (LEDs) of a visible light communication (VLC) system are investigated. Keywords emitting diodes (LEDs) emitting in the visible spectral range has recently gained increasing attention been reported covering bit rates up to 50 Mb/s [5]. Optical wireless communications with (light

  18. The systems engineering of a network-centric distributed intelligent system of systems for robust human behavior classifications

    E-Print Network [OSTI]

    Goshorn, Deborah Ellen

    2010-01-01

    plemented includes an intelligent sensor network, requiredto create an intelligent sensor, there is the ability ofwithin a single intelligent sensor. Choosing the underlying

  19. Mike Batzle holds the Baker Hughes Distinguished Chair of Petrophysics and Borehole Geophysics, at the Colorado School of Mines, where he has been a member of the geophysics

    E-Print Network [OSTI]

    Mike Batzle holds the Baker Hughes Distinguished Chair of Petrophysics and Borehole Geophysics, at the Colorado School of Mines, where he has been a member of the geophysics department for the past 17 years from the University of California, Riverside, and a PhD in geophysics from MIT. His main interests have

  20. Marianne Hromalik, Hugh T. Philipp, Lucas Koerner, Mark W. Tate and Sol M. Gruner (2007). Data Acquisition and Control for a Pixel Array Detector (PAD) for Single

    E-Print Network [OSTI]

    Gruner, Sol M.

    2007-01-01

    Light Source (LCLS). 2007 IEEE Nucl. Science Symposium Conference Record, 2007. NSS '07. IEEE. 3 : 1744 Acquisition and Control for the LCLS Pixel Array Detector Marianne S. Hromalik , Hugh T. Philipp, Lucas J at the Linac Coherent Light Source (LCLS). The experiment requires that sub-picosecond pulses of 8kEV X

  1. Hugh Violette maintained an ongoing and deep commitment to the world of professional forestry. At the time of his death, he was Chairman of the New England

    E-Print Network [OSTI]

    Thomas, Andrew

    Hugh Violette maintained an ongoing and deep commitment to the world of professional forestry. At the time of his death, he was Chairman of the New England Regional Council on Forest Engineering. He remember him for his commitment to his profession, his deep love for family and friends, and for the joy he

  2. PHYSICAL REVIEW E 83, 036116 (2011) Cascade of failures in coupled network systems with multiple support-dependence relations

    E-Print Network [OSTI]

    Buldyrev, Sergey

    2011-01-01

    PHYSICAL REVIEW E 83, 036116 (2011) Cascade of failures in coupled network systems with multiple March 2011) We study, both analytically and numerically, the cascade of failures in two coupled network of the generating functions of the degree distributions of their connectivity and support links. In a special case

  3. Permutation invariant polynomial neural network approach to fitting potential energy surfaces. II. Four-atom systems

    SciTech Connect (OSTI)

    Li, Jun; Jiang, Bin; Guo, Hua, E-mail: hguo@unm.edu [Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131 (United States)] [Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131 (United States)

    2013-11-28

    A rigorous, general, and simple method to fit global and permutation invariant potential energy surfaces (PESs) using neural networks (NNs) is discussed. This so-called permutation invariant polynomial neural network (PIP-NN) method imposes permutation symmetry by using in its input a set of symmetry functions based on PIPs. For systems with more than three atoms, it is shown that the number of symmetry functions in the input vector needs to be larger than the number of internal coordinates in order to include both the primary and secondary invariant polynomials. This PIP-NN method is successfully demonstrated in three atom-triatomic reactive systems, resulting in full-dimensional global PESs with average errors on the order of meV. These PESs are used in full-dimensional quantum dynamical calculations.

  4. A Dynamical Network View of Lyon's Velo'v Shared Bicycle System

    E-Print Network [OSTI]

    Robardet, CĂ©line

    A Dynamical Network View of Lyon's V´elo'v Shared Bicycle System Pierre Borgnat1 , C´eline Robardet Laboratoire de Physique, ENS de Lyon, CNRS, 46 all´ee d'Italie 69007 Lyon, France. {Pierre.Borgnat; Patrice.Abry; Patrick.Flandrin; Nicolas.Tremblay}@ens-lyon.fr 2 LIRIS, INSA-Lyon, CNRS, B^atiment Blaise Pascal, 69621

  5. TVRSJ Vol.7 No.4, 2002 RCML 2.0: Development of a Networked Telerobotic System

    E-Print Network [OSTI]

    Tachi, Susumu

    [12] · · · PC PDA RCML 2.0 2 3. 2 RCML 2.0 CGI [13] Java [14] [15] [16] CGI Web Web #12;: RCML 2.0 RCML 2.0 RCML 2.0 RCML 2.0 RCTP/2.0 SDRM RXID RCML Extensible Interface Definition 2.0 RCML 2.0 GUI 4TVRSJ Vol.7 No.4, 2002 RCML 2.0: 1 1 1 RCML 2.0: Development of a Networked Telerobotic System

  6. Molecular Evolution, Networks in From: Meyers, R.A. (ed.) Encyclopedia of Complexity and System Science. Springer, Heidelberg

    E-Print Network [OSTI]

    Wagner, Andreas

    Molecular Evolution, Networks in From: Meyers, R.A. (ed.) Encyclopedia of Complexity and System of Biochemistry Computational Biology and Bioinformatics Building Y27 Winterthurerstrasse 190 CH-8057 Zurich

  7. Networked embedded systems such as wireless sensor networks are usually designed to be event-driven so that they are reactive

    E-Print Network [OSTI]

    Zhao, Feng

    synchronous and locally asynchronous, code generation, sensor network 1. INTRODUCTION Emerging embedded and consistency of shared states. This paper describes a globally asynchronous and locally synchronous model (TinyGALS) for programming event-driven embedded systems. Software components are composed locally through synchronous method

  8. Optimal system size for complex dynamics in random neural networks near criticality

    SciTech Connect (OSTI)

    Wainrib, Gilles, E-mail: wainrib@math.univ-paris13.fr [Laboratoire Analyse Géométrie et Applications, Université Paris XIII, Villetaneuse (France)] [Laboratoire Analyse Géométrie et Applications, Université Paris XIII, Villetaneuse (France); García del Molino, Luis Carlos, E-mail: garciadelmolino@ijm.univ-paris-diderot.fr [Institute Jacques Monod, Université Paris VII, Paris (France)

    2013-12-15

    In this article, we consider a model of dynamical agents coupled through a random connectivity matrix, as introduced by Sompolinsky et al. [Phys. Rev. Lett. 61(3), 259–262 (1988)] in the context of random neural networks. When system size is infinite, it is known that increasing the disorder parameter induces a phase transition leading to chaotic dynamics. We observe and investigate here a novel phenomenon in the sub-critical regime for finite size systems: the probability of observing complex dynamics is maximal for an intermediate system size when the disorder is close enough to criticality. We give a more general explanation of this type of system size resonance in the framework of extreme values theory for eigenvalues of random matrices.

  9. Hybrid control of networked embedded systems A. Balluchi, L. Benvenuti, S. Engell, T. Geyer, K.H. Johansson,

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    Hybrid control of networked embedded systems A. Balluchi, L. Benvenuti, S. Engell, T. Geyer, K surveying the main theoretical control problems that have been treated in the hybrid systems setting: Control of power systems, industrial process control, design of automotive electronics and communication

  10. Cyber-Physical System Requirements -A Model Driven Approach Cyber-physical systems (CPS) networked

    E-Print Network [OSTI]

    Minnesota, University of

    systems such as infusion pumps. Complete and consistent requirements are central to analysis. A generic patient controlled analgesia (GPCA) infusion pump system was used as a case example to provide: Generic Patient Controlled Analgesia Infusion Pump System. Figure: Infusion Pump Plant Model. Figure

  11. The systems engineering of a network-centric distributed intelligent system of systems for robust human behavior classifications

    E-Print Network [OSTI]

    Goshorn, Deborah Ellen

    2010-01-01

    the Underway Unmanned Aerial Vehicle (UAV) System. . . . . .Unmanned Aerial Vehicle (UAV) System. Bibliography 2001:Unmanned Aerial Vehicle (UAV) System, and the Cyber-Security

  12. Autocalibration forVirtual Environments Tracking Hardware* Stefan Gottschalk John F. Hughes

    E-Print Network [OSTI]

    Hughes, John

    generation; (3) a low- latency, high-accuracy system for head tracking in unprepared, possibly of beacons in a head-mounted display tracking system; the calculated errors in the navigation system are used head- tracking/hand-tracking system is calibrated by a similar reduction of computed errors. CR

  13. Neural network based system for damage identification and location in structural and mechanical systems

    SciTech Connect (OSTI)

    Farrar, C.R.; Doebling, S.W.; Prime, M.B. [Los Alamos National Lab., NM (US); Cornwell, P.; Kam, M. [Rose-Hulman Inst. of Tech., Terre Haute, IN (US); Straser, E.G. [Stanford Univ., CA (US); Hoerst, B.C.

    1998-11-01

    This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). Recent advances in wireless, remotely monitored data acquisition systems coupled with the development of vibration-based damage detection algorithms make the possibility of self- or remotely-monitored structures and mechanical systems appear to be within the capabilities of current technology. However, before such a system can be relied upon to perform this monitoring, the variability of the vibration properties that are the basis for the damage detection algorithm must be understood and quantified. This understanding is necessary so that the artificial intelligence/expert system that is employed to discriminate when changes in modal properties are indicative of damage will not yield false indications of damage. To this end, this project has focused on developing statistical methods for quantifying variability in identified vibration proper ties of structural and mechanical systems.

  14. Data-Centric Systems and Networking Contact: eiko.yoneki@cl.cam.ac.uk

    E-Print Network [OSTI]

    Haddadi, Hamed

    ) Digital Epidemiology Raspberry Pi based delay tolerant networks with satellite connectivity in developing

  15. Optimal estimation in networked control systems subject to random delay and packet drop

    E-Print Network [OSTI]

    Schenato, Luca

    in controlling of the environment, such as fine grane building environmental control [2], vehicular networks

  16. Journal of Network and Systems Management, Vol. 12, No. 2, June 2004 ( 2004) Edited by Paul Brusil

    E-Print Network [OSTI]

    Boutaba, Raouf

    tradition of NOMS and the Integrated Man- agement Symposium (IM) as the primary forum for technical exchange among the research, standards, development, systems integrator, service provider, and user communities and Distributed Systems. The theme for NOMS 2004 was "Managing Next Generation Con- vergence Networks and Services

  17. Hybrid expert system - neural network - Fuzzy Logic methodology for transient identification

    SciTech Connect (OSTI)

    Ikonomopoulos, A.; Tsoukalas, L.H. (Tennessee Univ., Knoxville, TN (United States). Dept. of Nuclear Engineering); Uhrig, R.E. (Tennessee Univ., Knoxville, TN (United States). Dept. of Nuclear Engineering Oak Ridge National Lab., TN (United States))

    1991-01-01

    A methodology is presented that demonstrates the potential of pretrained artificial neural networks (ANN's) as generators of membership functions for the purpose of transient identification in Nuclear Power Plants (NPP). In order to provide timely concise and task-specific information about the many aspects of the transient and to determine the state of the system based on the interpretation of potentially noisy data, a model-referenced approach is utilized, where pretrained ANNs provide the model. Membership functions -- that condense information about a transient in a form convenient for a rule-based identification system -- are produced through ANN'S. The results demonstrate the extremely good noise-tolerance of ANN's and suggest a new method for transient identification within the framework of Fuzzy Logic.

  18. Hybrid expert system - neural network - Fuzzy Logic methodology for transient identification

    SciTech Connect (OSTI)

    Ikonomopoulos, A.; Tsoukalas, L.H. [Tennessee Univ., Knoxville, TN (United States). Dept. of Nuclear Engineering; Uhrig, R.E. [Tennessee Univ., Knoxville, TN (United States). Dept. of Nuclear Engineering]|[Oak Ridge National Lab., TN (United States)

    1991-12-31

    A methodology is presented that demonstrates the potential of pretrained artificial neural networks (ANN`s) as generators of membership functions for the purpose of transient identification in Nuclear Power Plants (NPP). In order to provide timely concise and task-specific information about the many aspects of the transient and to determine the state of the system based on the interpretation of potentially noisy data, a model-referenced approach is utilized, where pretrained ANNs provide the model. Membership functions -- that condense information about a transient in a form convenient for a rule-based identification system -- are produced through ANN`S. The results demonstrate the extremely good noise-tolerance of ANN`s and suggest a new method for transient identification within the framework of Fuzzy Logic.

  19. Evalutation and network of ec-decision support systems in the field of hydrological dispension models and of aquatic radioecological research Assessment of environmental models anf software

    E-Print Network [OSTI]

    Monte, L; Hofman, Dimitry

    2005-01-01

    Evalutation and network of ec-decision support systems in the field of hydrological dispension models and of aquatic radioecological research

  20. Dynamics of center-periphery patterns in knowledge networks - the case of China's biotech science and technology system

    E-Print Network [OSTI]

    Hennemann, Stefan; Liefner, Ingo

    2011-01-01

    Science and technology systems - and their epistemic communities - are usually hierarchical and composed of a number of strong, large, leading organizations, along with a number of smaller and less influential ones. Moreover, these hierarchical patterns have a spatial structure: the leading organizations are concentrated in a few places, creating a science and technology center, whereas the majority of locations are peripheral. In the example of biotech research in China, we found dynamic changes in center-periphery patterns. These results are based on a network analysis of evolving co-authorship networks from 2001 to 2009 that were built combining national and international databases. Therefore, our results are not only relevant for evaluating the spatial structure and dynamics in the Chinese biotech system and its integration into the global knowledge network, but also revive a discussion on persistence and processes of change in the systems theory for sciencebased industries.

  1. Representing liquid-vapor equilibria of Ternary systems using neural networks

    E-Print Network [OSTI]

    Swisher, Mathew M

    2015-01-01

    We develop a method based on neural networks for efficiently interpolating equations of state (EOS) for liquid-vapor equilibria of ternary mixtures. We investigate the performance of neural networks both when experimental ...

  2. Spatial network surrogates for disentangling complex system structure from spatial embedding of nodes

    E-Print Network [OSTI]

    Wiedermann, Marc; Kurths, Jürgen; Donner, Reik V

    2015-01-01

    Networks with nodes embedded in a metric space have gained increasing interest in recent years. The effects of spatial embedding on the networks' structural characteristics, however, are rarely taken into account when studying their macroscopic properties. Here, we propose a hierarchy of null models to generate random surrogates from a given spatially embedded network that can preserve global and local statistics associated with the nodes' embedding in a metric space. Comparing the original network's and the resulting surrogates' global characteristics allows to quantify to what extent these characteristics are already predetermined by the spatial embedding of the nodes and links. We apply our framework to various real-world spatial networks and show that the proposed models capture macroscopic properties of the networks under study much better than standard random network models that do not account for the nodes' spatial embedding. Depending on the actual performance of the proposed null models, the networks...

  3. Subsampled DPCM system design for speech transmission over lossy packet networks 

    E-Print Network [OSTI]

    Siddiqui, Aqeel Ahmed

    1995-01-01

    various traffic distributions and patterns, can utilize the network efficiently. This is done through the use of statistical multiplexing. A common feature in packet-switched speech transmission networks is the need to discard packets occasionally...

  4. Cost-sharing in Directed Networks: Experimental Study of Equilibrium Choice and System Dynamics

    E-Print Network [OSTI]

    Liu, Caiyun; Mak, Vincent; Rapoport, Amnon

    2015-01-01

    ; the more agents owning a telephone, the more valuable the telephone is to them. Online social networks like Twitter and Facebook also have positive externalities. Negative externalities are best illustrated by congestible networks, where delay in travel...

  5. SENVM: Server Environment Monitoring and Controlling System for a Small Data Center Using Wireless Sensor Network

    E-Print Network [OSTI]

    Choochaisri, Supasate; Jenjaturong, Saran; Intanagonwiwat, Chalermek; Ratanamahatana, Chotirat Ann

    2011-01-01

    In recent years, efficient energy utilization becomes an essential requirement for data centers, especially in data centers of world-leading companies, where "Green Data Center" defines a new term for an environment-concerned data center. Solutions to change existing a data center to the green one may vary. In the big company, high-cost approaches including re-planning server rooms, changing air-conditioners, buying low-powered servers, and equipping sophisticating environmental control equipments are possible, but not for small to medium enterprises (SMEs) and academic sectors which have limited budget. In this paper, we propose a novel system, SENVM, used to monitor and control air temperature in a server room to be in appropriate condition, not too cold, where very unnecessary cooling leads to unnecessary extra electricity expenses, and also inefficient in energy utilization. With implementing on an emerging technology, Wireless Sensor Network (WSN), Green Data Center is feasible to every small data center...

  6. Entanglement Routers via Wireless Quantum Network Based on Arbitrary Two Qubit Systems

    E-Print Network [OSTI]

    N. Metwally

    2014-05-02

    A wireless quantum network is generated between multi-hop, where each hop consists of two entangled nodes. These nodes share a finite number of entangled two qubit systems randomly. Different types of wireless quantum bridges are generated between the non-connected nodes. The efficiency of these wireless quantum bridges to be used as quantum channels between its terminals to perform quantum teleportation is investigated. We suggest a theoretical wireless quantum communication protocol to teleport unknown quantum signals from one node to another, where the more powerful wireless quantum bridges are used as quantum channels. It is shown that, by increasing the efficiency of the sources which emit the initial partial entangled states, one can increase the efficiency of the wireless quantum communication protocol.

  7. System and Method for Collision-free Transmission Scheduling in a Network

    E-Print Network [OSTI]

    Garcia-Luna-Aceves, J.J.

    2009-01-01

    infrared, and other wireless media. Router 150 is typicallyfor a wireless network. Moreover, an access router, may

  8. Accepted to appear in ACM/Baltzer Wireless Networks, 1999 Admission Control Algorithms for Cellular Systems

    E-Print Network [OSTI]

    Peha, Jon M.

    Page 1 Accepted to appear in ACM/Baltzer Wireless Networks, 1999 Admission Control Algorithms]), it is the network provider's responsibility to provide adequate Quality of Service (QoS) to all users. Two critical, the network may terminate the call prematurely when a handoff is attempted into a cell that has no capacity

  9. Phys 597A, CMPS 497E Graphs and Networks in Systems Biology

    E-Print Network [OSTI]

    Albert, Réka

    clustering Sink nodes, Leaf nodes #12;Food webs describe the energy flow within species Nodes: species Edges network in a high-school Blue: boys Pink: girls Q: does it surprise you that the network is connected in the illustration #12;Word co-usage network in PNAS publications Only words whose usage significantly increased

  10. AUTONOMOUS UNDERSEA SYSTEMS NETWORK (AUSNET) PROTOCOLS TO SUPPORT AD-HOC AUV COMMUNICATIONS

    E-Print Network [OSTI]

    (as opposed to network support) data transmissions. Next steps in this effort will focus on store to support a dynamically evolving topology of truly semi-autonomous networked robots. Emerging flexible low bandwidth, energy efficient architectures and protocols will enable more effective networked subsurface

  11. Combined expert system/neural networks method for process fault diagnosis

    DOE Patents [OSTI]

    Reifman, Jaques (Westchester, IL); Wei, Thomas Y. C. (Downers Grove, IL)

    1995-01-01

    A two-level hierarchical approach for process fault diagnosis is an operating system employs a function-oriented approach at a first level and a component characteristic-oriented approach at a second level, where the decision-making procedure is structured in order of decreasing intelligence with increasing precision. At the first level, the diagnostic method is general and has knowledge of the overall process including a wide variety of plant transients and the functional behavior of the process components. An expert system classifies malfunctions by function to narrow the diagnostic focus to a particular set of possible faulty components that could be responsible for the detected functional misbehavior of the operating system. At the second level, the diagnostic method limits its scope to component malfunctions, using more detailed knowledge of component characteristics. Trained artificial neural networks are used to further narrow the diagnosis and to uniquely identify the faulty component by classifying the abnormal condition data as a failure of one of the hypothesized components through component characteristics. Once an anomaly is detected, the hierarchical structure is used to successively narrow the diagnostic focus from a function misbehavior, i.e., a function oriented approach, until the fault can be determined, i.e., a component characteristic-oriented approach.

  12. Combined expert system/neural networks method for process fault diagnosis

    DOE Patents [OSTI]

    Reifman, J.; Wei, T.Y.C.

    1995-08-15

    A two-level hierarchical approach for process fault diagnosis of an operating system employs a function-oriented approach at a first level and a component characteristic-oriented approach at a second level, where the decision-making procedure is structured in order of decreasing intelligence with increasing precision. At the first level, the diagnostic method is general and has knowledge of the overall process including a wide variety of plant transients and the functional behavior of the process components. An expert system classifies malfunctions by function to narrow the diagnostic focus to a particular set of possible faulty components that could be responsible for the detected functional misbehavior of the operating system. At the second level, the diagnostic method limits its scope to component malfunctions, using more detailed knowledge of component characteristics. Trained artificial neural networks are used to further narrow the diagnosis and to uniquely identify the faulty component by classifying the abnormal condition data as a failure of one of the hypothesized components through component characteristics. Once an anomaly is detected, the hierarchical structure is used to successively narrow the diagnostic focus from a function misbehavior, i.e., a function oriented approach, until the fault can be determined, i.e., a component characteristic-oriented approach. 9 figs.

  13. Design of a Network-based Mobile Gait Rehabilitation System Wenlong Zhang, Student Member, IEEE, Xiuming Zhu, Song Han, Student Member, IEEE,

    E-Print Network [OSTI]

    Chandy, John A.

    Design of a Network-based Mobile Gait Rehabilitation System Wenlong Zhang, Student Member, IEEE for improved mobility and tele- rehabilitation. In this system, an Internet-based body sensor network control of the gait rehabilitation device. A compact rotary elastic actuator (cRSEA) is used for providing

  14. Rethinking Data Fusion-Based Services in Tiered Sensor Networks

    E-Print Network [OSTI]

    Dantu, Karthik; Sukhatme, Gaurav

    2006-01-01

    conference on Embedded networked sensor systems, New York,conference on Embedded networked sensor systems, New York,Conference on Embedded Networked Sensor Systems, 2003, pp.

  15. Topic 4: Demand Response A.H. MohsenianRad (U of T) 1Networking and Distributed Systems

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    Topic 4: Demand Response A.H. MohsenianRad (U of T) 1Networking and Distributed Systems Department;Definition of Demand Response Dr. Hamed Mohsenian-Rad Texas Tech UniversityCommunications and Control in Smart Grid · According to the U.S. Department of Energy: Demand response (DR) is defined as changes

  16. Topic 3: Smart Grid Communications A.H. MohsenianRad (U of T) 1Networking and Distributed Systems

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    Topic 3: Smart Grid Communications A.H. MohsenianRad (U of T) 1Networking and Distributed Systems Reference Model for Smart Grid Dr. Hamed Mohsenian-Rad Texas Tech UniversityCommunications and Control in Smart Grid 2 · Each domain involves its own actors and applications. · Interactions across 7 Smart Grid

  17. 2892 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 29, NO. 6, NOVEMBER 2014 Optimal Power Flow in Direct Current Networks

    E-Print Network [OSTI]

    Wierman, Adam

    .g., photovoltaic panels, wind turbines, electric vehicles, electronic appliances, and fuel cells, are easier2892 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 29, NO. 6, NOVEMBER 2014 Optimal Power Flow in Direct Current Networks Lingwen Gan and Steven H. Low, Fellow, IEEE Abstract--The optimal power flow (OPF

  18. In Proceedings of the 3rd Symposium on Networked Systems Design and Implementation (NSDI '06), San Jose, California, May 2006

    E-Print Network [OSTI]

    Andersen, Dave

    as a common interface between applications and the lower-level network layers, facilitating innovation both connection. Therefore, new innovations in bulk data transfer must be reimple- mented for each application. Not surprisingly, the rate of adoption of innovative transfer mechanisms, particularly in existing systems, is slow

  19. Vol.33, No.1, 1/7 2001 Network Sensing Technologies for Vital and Sustainable Social Systems

    E-Print Network [OSTI]

    Shinoda, Hiroyuki

    Vol.33, No.1, 1/7 2001 Network Sensing Technologies for Vital and Sustainable Social Systems-price look up) 7) #12;4 T. SICE Vol.33 No.1 January 2001 8) PET 2. 4 LC IC RF-ID(Radio Frequency Identifica. Dougherty, Morphological Methods in Image and Signal Processing, Prentice Hall, Englewood Cliffs, NJ, 1988

  20. Abstract--Improvements in transmission and distribution networks can be noticed in most countries that had their system

    E-Print Network [OSTI]

    Morton, David

    , the National Electricity Regulatory Agency has established that the monthly amount of transmission system usage1 Abstract--Improvements in transmission and distribution networks can be noticed in most one of the biggest challenges is the transmission and distribution open access. In Brazil

  1. Position Paper for NSF-NIST-USCAR Workshop on Cyber-Physical Systems Fault Diagnosis and Prognosis in a Network of Embedded Systems in Automotive Vehicles

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    in a Network of Embedded Systems in Automotive Vehicles K. Pattipati1, C. Sankavaram1, B. Wang2, P. Zhang1, Y Identification The relentless competition among automotive companies and increased demands from customers poor vehicle performance increases maintenance costs to customers and warranty costs to automotive

  2. Microsoft Word - Johnston.IOS.Network Communication as a Service...

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

    system communication be based on a service-oriented capability. Keywords. Energy Sciences Network (ESnet), networks for large-scale science, network planning, networks...

  3. Regenerative memory in time-delayed neuromorphic photonic systems

    E-Print Network [OSTI]

    Romeira, B; Figueiredo, José M L; Barland, S; Javaloyes, J

    2015-01-01

    We investigate a regenerative memory based upon a time-delayed neuromorphic photonic oscillator and discuss the link with temporal localized structures. Our experimental implementation is based upon a optoelectronic system composed of a nanoscale nonlinear resonant tunneling diode coupled to a laser that we link to the paradigm of neuronal activity, the FitzHugh-Nagumo model with delayed feedback.

  4. The Tenet Architecture for Tiered Sensor Networks

    E-Print Network [OSTI]

    2006-01-01

    a sensor network architecture: Lowering the waistline. InJ. Hill et al. System architecture directions for networkThe Tenet Architecture for Tiered Sensor Networks Omprakash

  5. QoS Provisioning in Wireless Networks The next-generation wireless networks such as the fourth generation (4G) cellular systems

    E-Print Network [OSTI]

    Wu, Dapeng Oliver

    , network services models, traffic specification, packet scheduling for wireless transmission, callQoS Provisioning in Wireless Networks Dapeng Wu Abstract The next-generation wireless networks, data, and multimedia over packet- switched networks. Providing quality of service (QoS) guarantees

  6. Chaotic behavior control in fluidized bed systems using artificial neural network. Quarterly progress report, October 1, 1996--December 31, 1996

    SciTech Connect (OSTI)

    Bodruzzaman, M.; Essawy, M.A.

    1996-02-27

    Pressurized fluidized-bed combustors (FBC) are becoming very popular, efficient, and environmentally acceptable replica for conventional boilers in Coal-fired and chemical plants. In this paper, we present neural network-based methods for chaotic behavior monitoring and control in FBC systems, in addition to chaos analysis of FBC data, in order to localize chaotic modes in them. Both of the normal and abnormal mixing processes in FBC systems are known to undergo chaotic behavior. Even though, this type of behavior is not always undesirable, it is a challenge to most types of conventional control methods, due to its unpredictable nature. The performance, reliability, availability and operating cost of an FBC system will be significantly improved, if an appropriate control method is available to control its abnormal operation and switch it to normal when exists. Since this abnormal operation develops only at certain times due to a sequence of transient behavior, then an appropriate abnormal behavior monitoring method is also necessary. Those methods has to be fast enough for on-line operation, such that the control methods would be applied before the system reaches a non-return point in its transients. It was found that both normal and abnormal behavior of FBC systems are chaotic. However, the abnormal behavior has a higher order chaos. Hence, the appropriate control system should be capable of switching the system behavior from its high order chaos condition to low order chaos. It is to mention that most conventional chaos control methods are designed to switch a chaotic behavior to a periodic orbit. Since this is not the goal for the FBC case, further developments are needed. We propose neural network-based control methods which are known for their flexibility and capability to control both non-linear and chaotic systems. A special type of recurrent neural network, known as Dynamic System Imitator (DSI), will be used for the monitoring and control purposes.

  7. Investigating the effectiveness of many-core network processors for high performance cyber protection systems. Part I, FY2011.

    SciTech Connect (OSTI)

    Wheeler, Kyle Bruce; Naegle, John Hunt; Wright, Brian J.; Benner, Robert E., Jr.; Shelburg, Jeffrey Scott; Pearson, David Benjamin; Johnson, Joshua Alan; Onunkwo, Uzoma A.; Zage, David John; Patel, Jay S.

    2011-09-01

    This report documents our first year efforts to address the use of many-core processors for high performance cyber protection. As the demands grow for higher bandwidth (beyond 1 Gbits/sec) on network connections, the need to provide faster and more efficient solution to cyber security grows. Fortunately, in recent years, the development of many-core network processors have seen increased interest. Prior working experiences with many-core processors have led us to investigate its effectiveness for cyber protection tools, with particular emphasis on high performance firewalls. Although advanced algorithms for smarter cyber protection of high-speed network traffic are being developed, these advanced analysis techniques require significantly more computational capabilities than static techniques. Moreover, many locations where cyber protections are deployed have limited power, space and cooling resources. This makes the use of traditionally large computing systems impractical for the front-end systems that process large network streams; hence, the drive for this study which could potentially yield a highly reconfigurable and rapidly scalable solution.

  8. A Scalable On-Line Multilevel Distributed Network Fault Detectioflonitoring System Based on the SNMP Protocol

    E-Print Network [OSTI]

    Thulsiraman, Krishnaiyan

    in this paper has been motivated by this research trend In network management. We present the design as NMS nodes with dual roles - manager and agent - and to balance loads and to avoid traffic congestion@sosu.edu thulasi@ou.edu London, Ontano,Canada N6A 5B9 Abstract-Traditional centralized network management solutions

  9. Network design optimization of fuel cell systems and distributed energy devices.

    SciTech Connect (OSTI)

    Colella, Whitney G.

    2010-07-01

    This research explores the thermodynamics, economics, and environmental impacts of innovative, stationary, polygenerative fuel cell systems (FCSs). Each main report section is split into four subsections. The first subsection, 'Potential Greenhouse Gas (GHG) Impact of Stationary FCSs,' quantifies the degree to which GHG emissions can be reduced at a U.S. regional level with the implementation of different FCS designs. The second subsection, 'Optimizing the Design of Combined Heat and Power (CHP) FCSs,' discusses energy network optimization models that evaluate novel strategies for operating CHP FCSs so as to minimize (1) electricity and heating costs for building owners and (2) emissions of the primary GHG - carbon dioxide (CO{sub 2}). The third subsection, 'Optimizing the Design of Combined Cooling, Heating, and Electric Power (CCHP) FCSs,' is similar to the second subsection but is expanded to include capturing FCS heat with absorptive cooling cycles to produce cooling energy. The fourth subsection, - Thermodynamic and Chemical Engineering Models of CCHP FCSs,' discusses the physics and thermodynamic limits of CCHP FCSs.

  10. Scalable scheduling algorithms for wireless networked control systems Alessandro D'Innocenzo1,2, Gera Weiss1, Rajeev Alur1, Alf J. Isaksson4, Karl H. Johansson3, George J. Pappas1

    E-Print Network [OSTI]

    Pappas, George J.

    Scalable scheduling algorithms for wireless networked control systems Alessandro D'Innocenzo1 for wireless networks (e.g. the WirelessHART specification). I. INTRODUCTION Wireless networked control systems are spatially dis- tributed control systems where the communication between sensors, actuators

  11. An evaluation of neural networks for identification of system parameters in reactor noise signals

    SciTech Connect (OSTI)

    Miller, L.F.

    1991-12-31

    Several backpropagation neural networks for identifying fundamental mode eigenvalues were evaluated. The networks were trained and tested on analytical data and on results from other numerical methods. They were then used to predict first mode break frequencies for noise data from several sources. These predictions were, in turn, compared with analytical values and with results from alternative methods. Comparisons of results for some data sets suggest that the accuracy of predictions from neural networks are essentially equivalent to results from conventional methods while other evaluations indicate that either method may be superior. Experience gained from these numerical experiments provide insight for improving the performance of neural networks relative to other methods for identifying parameters associated with experimental data. Neural networks may also be used in support of conventional algorithms by providing starting points for nonlinear minimization algorithms.

  12. An evaluation of neural networks for identification of system parameters in reactor noise signals

    SciTech Connect (OSTI)

    Miller, L.F.

    1991-01-01

    Several backpropagation neural networks for identifying fundamental mode eigenvalues were evaluated. The networks were trained and tested on analytical data and on results from other numerical methods. They were then used to predict first mode break frequencies for noise data from several sources. These predictions were, in turn, compared with analytical values and with results from alternative methods. Comparisons of results for some data sets suggest that the accuracy of predictions from neural networks are essentially equivalent to results from conventional methods while other evaluations indicate that either method may be superior. Experience gained from these numerical experiments provide insight for improving the performance of neural networks relative to other methods for identifying parameters associated with experimental data. Neural networks may also be used in support of conventional algorithms by providing starting points for nonlinear minimization algorithms.

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

    E-Print Network [OSTI]

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

  14. Network Management Network Management

    E-Print Network [OSTI]

    Giaccone, Paolo

    Network Management Pag. 1 Network Management Network management and QoS provisioning - 1Andrea of this license visit: http://creativecommons.org/licenses/by-nc- /3 0/ Network management and QoS provisioning ­ Chapter 9, Network Management, of the book Jim Kurose, Keith Ross, Computer Networking, A Top Down

  15. Financial Networks Anna Nagurney

    E-Print Network [OSTI]

    Nagurney, Anna

    Freight Network World Oil Routes Natural Gas Flows Network Systems Internet Traffic Anna Nagurney in decision-making; constraints on resources: human, financial, natural, time, etc.; global reach of many of Networks Today large-scale nature and complexity of network topology; congestion, which leads

  16. An Ultra Low Power System Architecture for Sensor Network Applications Mark Hempstead, Nikhil Tripathi, Patrick Mauro, Gu-Yeon Wei, David Brooks

    E-Print Network [OSTI]

    Brooks, David

    - crocontroller, a radio, and a variety of (often MEMS-based) sensors. One of the main limitationsAn Ultra Low Power System Architecture for Sensor Network Applications Mark Hempstead, Nikhil a burgeoning interest in em- bedded wireless sensor networks with applications rang- ing from habitat

  17. Systems and methods for creation of conducting networks of magnetic particles through dynamic self-assembly process

    DOE Patents [OSTI]

    Snezhko, Oleksiy (Woodridge, IL); Aronson, Igor (Darien, IL); Kwok, Wai-Kwong (Downers Grove, IL)

    2011-01-25

    Self-assembly of magnetic microparticles in AC magnetic fields. Excitation of the system by an AC magnetic field provides a variety of patterns that can be controlled by adjusting the frequency and the amplitude of the field. At low particle densities the low-frequency magnetic excitation favors cluster phase formation, while high frequency excitation favors chains and netlike structures. For denser configurations, an abrupt transition to the network phase was obtained.

  18. Implementation Hugh Thomas

    E-Print Network [OSTI]

    Ma, Lena

    -fertilized vegetated buffers Other: ___________ Sinks/sinkholes 50 foot non-fertilized vegetated buffer Other

  19. Hughes Hall - 1 

    E-Print Network [OSTI]

    Unknown

    2006-06-22

    A multi-phase bioremediation project was initiated raphics. following the rupture of several oil and gas pipelines during extensive flooding of the San Jacinto River near Houston, Texas, in October of 1994. A small cove and its associated wetlands...

  20. Software Defined Networking (SDN) Project

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

    Networking (SDN) Project Energy sector-focused SDN flow controller to manage control system networks centrally and securely Background Traditional information technology (IT)...

  1. An Integration Framework for Sensor Networks and Data Stream Management Systems

    E-Print Network [OSTI]

    Lindner, Wolfgang

    that report the light and temperature Permission to copy without fee all or part of this material is granted to decide if readings from a motion-detector are correlated with network activity, or if truck loca- tions

  2. UbiBot : a system for experimenting with mobile devices on a wireless network

    E-Print Network [OSTI]

    Vedar, Erwin Abad

    2011-01-01

    that it runs on a mobile device, and uses context to enhancethe limitations of mobile devices and wireless networks.times between mobile devices and a laptop, we determined

  3. Sustainable Energy Solutions Task 1.0: Networked Monitoring and Control of Small Interconnected Wind Energy Systems

    SciTech Connect (OSTI)

    Janet.twomey@wichita.edu

    2010-04-30

    EXECUTIVE SUMARRY This report presents accomplishments, results, and future work for one task of five in the Wichita State University Sustainable Energy Solutions Project: To develop a scale model laboratory distribution system for research into questions that arise from networked control and monitoring of low-wind energy systems connected to the AC distribution system. The lab models developed under this task are located in the Electric Power Quality Lab in the Engineering Research Building on the Wichita State University campus. The lab system consists of four parts: 1. A doubly-fed induction generator 2. A wind turbine emulator 3. A solar photovoltaic emulator, with battery energy storage 4. Distribution transformers, lines, and other components, and wireless and wired communications and control These lab elements will be interconnected and will function together to form a complete testbed for distributed resource monitoring and control strategies and smart grid applications testing. Development of the lab system will continue beyond this project.

  4. Novel Technique of Sizing the Stand-Alone Photovoltaic Systems Using the Radial Basis Function Neural Networks: Application in Isolated Sites 

    E-Print Network [OSTI]

    Mellit, A.; Benghanme, M.; Arab, A. H.; Guessoum, A.

    2004-01-01

    The objective of this work is to investigate the Radial Basis Function Neural Networks (RBFN) to identifying and modeling the optimal sizing couples of stand-alone photovoltaic (PV) system using a minimum of input data, These optimal couples allow...

  5. Globally useful conceptions of Alternative Food Networks in the developing south: the case of Johannesburg’s urban food supply system 

    E-Print Network [OSTI]

    Abrahams, Caryn N

    2006-01-01

    Literature on alternative food networks (AFN) has hitherto included multifaceted foci such as short food supply chains (Ilbery and Maye 2005; Renting et al 2003), local food supply systems (Winter 2003; Hinrichs 2000), ...

  6. Co-scheduling of network resource provisioning and host-to-host bandwidth reservation on high-performance network and storage systems

    DOE Patents [OSTI]

    Yu, Dantong; Katramatos, Dimitrios; Sim, Alexander; Shoshani, Arie

    2014-04-22

    A cross-domain network resource reservation scheduler configured to schedule a path from at least one end-site includes a management plane device configured to monitor and provide information representing at least one of functionality, performance, faults, and fault recovery associated with a network resource; a control plane device configured to at least one of schedule the network resource, provision local area network quality of service, provision local area network bandwidth, and provision wide area network bandwidth; and a service plane device configured to interface with the control plane device to reserve the network resource based on a reservation request and the information from the management plane device. Corresponding methods and computer-readable medium are also disclosed.

  7. DESIGN AND ANALYSIS OF THE SNS CCL HOT MODEL WATER COOLING SYSTEM USING THE SINDA/FLUINT NETWORK MODELING TOOL

    SciTech Connect (OSTI)

    C. AMMERMAN; J. BERNARDIN

    1999-11-01

    This report presents results for design and analysis of the hot model water cooling system for the Spallation Neutron Source (SNS) coupled-cavity linac (CCL). The hot model, when completed, will include segments for both the CCL and coupled-cavity drift-tube linac (CCDTL). The scope of this report encompasses the modeling effort for the CCL portion of the hot model. This modeling effort employed the SINDA/FLUINT network modeling tool. This report begins with an introduction of the SNS hot model and network modeling using SINDA/FLUINT. Next, the development and operation of the SINDA/FLUINT model are discussed. Finally, the results of the SINDA/FLUINT modeling effort are presented and discussed.

  8. Hawaii International Conference on System Sciences, January 3-6, 2001, Maui, Hawaii. 2001 IEEE Modeling Blackout Dynamics in Power Transmission Networks

    E-Print Network [OSTI]

    Newman, David

    in electric power transmission systems is implemented and studied in simple networks with a regular structure Electric power transmission systems are complex engineering systems with many interacting components failure, weather conditions, vandalism, and human error [1]. The dominant causes triggering blackouts

  9. HUMAN ROBOT INTERACTION FOR MULTI-ROBOT SYSTEMS A Dissertation Proposal by

    E-Print Network [OSTI]

    Sukthankar, Gita Reese

    HUMAN ROBOT INTERACTION FOR MULTI-ROBOT SYSTEMS A Dissertation Proposal by Bennie G. Lewis Jr. 11 Hughes Annie Wu #12;Outline Abstract ii 1 Introduction 1 2 Related Work 3 2.1 Human Robot Interaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 Multi-Robot Manipulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2

  10. Development of an Embedded Networked Sensing System for Structural Health Monitoring

    E-Print Network [OSTI]

    Whang, Daniel; Xu, Ning; Rangwala, Sumit; Chintalapudi, Krishna; Govindan, Ramesh; Wallace, J W

    2004-01-01

    Sensing System for Structural Health Monitoring Proceedingssensing system for structural health monitoring is currentlysensing system for structural health monitoring and its role

  11. Learning Dynamic Systems From Time-Series Data - An Application to Gene Regulatory Networks

    E-Print Network [OSTI]

    Timoteo, Ivo J. P. M.; Holden, Sean B.

    2015-01-01

    ). Learn- ing networks of stochastic differential equations. In Lafferty, J. D., Williams, C. K. I., Shawe-Taylor, J., Zemel, R. S., and Culotta, A., editors, NIPS, pages 172–180. Curran Associates, Inc. Bento, J., Ibrahimi, M., and Montanari, A. (2011...

  12. Gone with the Wind ON_Mars (GOWON): A Wind-Driven Networked System of Mobile Sensors on Mars

    E-Print Network [OSTI]

    Davoodi, Faranak; Murphy, Neil; Mischna, Michael; Nesnas, Issa; Nikzad, Shouleh

    2012-01-01

    We propose a revolutionary way of studying the surface of Mars using a wind-driven network of mobile sensors- Gone with the Wind ON_Mars (GOWON). GOWON is a scalable architecture that will allow in-situ mapping of a wide range of phenomena, exploiting existing capabilities, but radically improving our ability to study Mars. GOWON has the following characteristics: 1.it consists of a dynamic wireless network of many compact mobile sensors. 2.the mobile sensors (called moballs) are spherically-shaped and wind-driven; they are lightweight and bouncy. 3. moballs communicate with each other and earth through a satellite system orbiting Mars. There is also peer-to-peer communication between the moballs, creating a network of shared data, computing, and tasks. Motivation and Rationale Thanks to earlier exploration missions to Mars we now have a much better understanding of many of the natural characteristics of the red planet. We now know that there is an abundance of wind (with average speeds of 10 m/s and much hig...

  13. Lanai high-density irradiance sensor network for characterizing solar resource variability of MW-scale PV system.

    SciTech Connect (OSTI)

    Stein, Joshua S.; Johnson, Lars; Ellis, Abraham; Kuszmaul, Scott S.

    2012-01-01

    Sandia National Laboratories (Sandia) and SunPower Corporation (SunPower) have completed design and deployment of an autonomous irradiance monitoring system based on wireless mesh communications and a battery operated data acquisition system. The Lanai High-Density Irradiance Sensor Network is comprised of 24 LI-COR{reg_sign} irradiance sensors (silicon pyranometers) polled by 19 RF Radios. The system was implemented with commercially available hardware and custom developed LabVIEW applications. The network of solar irradiance sensors was installed in January 2010 around the periphery and within the 1.2 MW ac La Ola PV plant on the island of Lanai, Hawaii. Data acquired at 1 second intervals is transmitted over wireless links to be time-stamped and recorded on SunPower data servers at the site for later analysis. The intent is to study power and solar resource data sets to correlate the movement of cloud shadows across the PV array and its effect on power output of the PV plant. The irradiance data sets recorded will be used to study the shape, size and velocity of cloud shadows. This data, along with time-correlated PV array output data, will support the development and validation of a PV performance model that can predict the short-term output characteristics (ramp rates) of PV systems of different sizes and designs. This analysis could also be used by the La Ola system operator to predict power ramp events and support the function of the future battery system. This experience could be used to validate short-term output forecasting methodologies.

  14. Attack Methodology Analysis: Emerging Trends in Computer-Based Attack Methodologies and Their Applicability to Control System Networks

    SciTech Connect (OSTI)

    Bri Rolston

    2005-06-01

    Threat characterization is a key component in evaluating the threat faced by control systems. Without a thorough understanding of the threat faced by critical infrastructure networks, adequate resources cannot be allocated or directed effectively to the defense of these systems. Traditional methods of threat analysis focus on identifying the capabilities and motivations of a specific attacker, assessing the value the adversary would place on targeted systems, and deploying defenses according to the threat posed by the potential adversary. Too many effective exploits and tools exist and are easily accessible to anyone with access to an Internet connection, minimal technical skills, and a significantly reduced motivational threshold to be able to narrow the field of potential adversaries effectively. Understanding how hackers evaluate new IT security research and incorporate significant new ideas into their own tools provides a means of anticipating how IT systems are most likely to be attacked in the future. This research, Attack Methodology Analysis (AMA), could supply pertinent information on how to detect and stop new types of attacks. Since the exploit methodologies and attack vectors developed in the general Information Technology (IT) arena can be converted for use against control system environments, assessing areas in which cutting edge exploit development and remediation techniques are occurring can provide significance intelligence for control system network exploitation, defense, and a means of assessing threat without identifying specific capabilities of individual opponents. Attack Methodology Analysis begins with the study of what exploit technology and attack methodologies are being developed in the Information Technology (IT) security research community within the black and white hat community. Once a solid understanding of the cutting edge security research is established, emerging trends in attack methodology can be identified and the gap between those threats and the defensive capabilities of control systems can be analyzed. The results of the gap analysis drive changes in the cyber security of critical infrastructure networks to close the gap between current exploits and existing defenses. The analysis also provides defenders with an idea of how threat technology is evolving and how defenses will need to be modified to address these emerging trends.

  15. Network Management Network Management

    E-Print Network [OSTI]

    Giaccone, Paolo

    Network Management Pag. 1 Network Management Andrea Bianco Telecommunication Network Group Network management and QoS provisioning - 1Andrea Bianco ­ TNG group - Politecnico di Torino Telecommunication management and QoS provisioning - 2Andrea Bianco ­ TNG group - Politecnico di Torino Stanford, California

  16. A Public Vehicle System with Multiple Origin-Destination Pairs on Traffic Networks

    E-Print Network [OSTI]

    congestion, and provides solutions with affordable cost. The key issue of implementing an effective PV system issue. We propose such a system, Public Vehicle (PV) system, to provide convenient and low-cost of transportation system, Public Vehicle (PV) system, to provide effective, comfortable, and convenient service

  17. Communication in Home Area Networks

    E-Print Network [OSTI]

    Wang, Yubo

    2012-01-01

    of smart home energy management systems based on zigbee”,Networks Enabling Energy Management Systems ”, Universities'Profile HV Home Energy Management System High Voltage SNR

  18. Neural network system and methods for analysis of organic materials and structures using spectral data

    DOE Patents [OSTI]

    Meyer, B.J.; Sellers, J.P.; Thomsen, J.U.

    1993-06-08

    Apparatus and processes are described for recognizing and identifying materials. Characteristic spectra are obtained for the materials via spectroscopy techniques including nuclear magnetic resonance spectroscopy, infrared absorption analysis, x-ray analysis, mass spectroscopy and gas chromatography. Desired portions of the spectra may be selected and then placed in proper form and format for presentation to a number of input layer neurons in an offline neural network. The network is first trained according to a predetermined training process; it may then be employed to identify particular materials. Such apparatus and processes are particularly useful for recognizing and identifying organic compounds such as complex carbohydrates, whose spectra conventionally require a high level of training and many hours of hard work to identify, and are frequently indistinguishable from one another by human interpretation.

  19. FNCS: A Framework for Power System and Communication Networks Co-Simulation

    SciTech Connect (OSTI)

    Ciraci, Selim; Daily, Jeffrey A.; Fuller, Jason C.; Fisher, Andrew R.; Marinovici, Laurentiu D.; Agarwal, Khushbu

    2014-04-13

    This paper describes the Fenix framework that uses a federated approach for integrating power grid and communication network simulators. Compared existing approaches, Fenix al- lows co-simulation of both transmission and distribution level power grid simulators with the communication network sim- ulator. To reduce the performance overhead of time synchro- nization, Fenix utilizes optimistic synchronization strategies that make speculative decisions about when the simulators are going to exchange messages. GridLAB-D (a distribution simulator), PowerFlow (a transmission simulator), and ns-3 (a telecommunication simulator) are integrated with the frame- work and are used to illustrate the enhanced performance pro- vided by speculative multi-threading on a smart grid applica- tion. Our speculative multi-threading approach achieved on average 20% improvement over the existing synchronization methods

  20. Neural network system and methods for analysis of organic materials and structures using spectral data

    DOE Patents [OSTI]

    Meyer, Bernd J. (Athens, GA); Sellers, Jeffrey P. (Suwanee, GA); Thomsen, Jan U. (Fredricksberg, DK)

    1993-01-01

    Apparatus and processes for recognizing and identifying materials. Characteristic spectra are obtained for the materials via spectroscopy techniques including nuclear magnetic resonance spectroscopy, infrared absorption analysis, x-ray analysis, mass spectroscopy and gas chromatography. Desired portions of the spectra may be selected and then placed in proper form and format for presentation to a number of input layer neurons in an offline neural network. The network is first trained according to a predetermined training process; it may then be employed to identify particular materials. Such apparatus and processes are particularly useful for recognizing and identifying organic compounds such as complex carbohydrates, whose spectra conventionally require a high level of training and many hours of hard work to identify, and are frequently indistinguishable from one another by human interpretation.

  1. Systems and Algorithms for Automated Collaborative Observation using Networked Robotic Cameras 

    E-Print Network [OSTI]

    Xu, Yiliang

    2011-10-21

    The development of telerobotic systems has evolved from Single Operator Single Robot (SOSR) systems to Multiple Operator Multiple Robot (MOMR) systems. The relationship between human operators and robots follows the ...

  2. Design, Implementation and Evaluation of a Storage System for Delay-Tolerant Networks

    E-Print Network [OSTI]

    Du, Bowei

    2009-01-01

    of Tables Weakly consistent storage systems. . . . . . . .and Developing Regions . 2.1.2 DTN and Storage Systems . . .2.2 Weakly-consistency Storage Systems . 2.2.1 File

  3. Cross-layer design of wideband CDMA systems and cooperative diversity for wireless ad hoc networks :

    E-Print Network [OSTI]

    Annavajjala, Ramesh

    2006-01-01

    in Electrical Engineering (Communication Theory and Systems)Ph. D. , Electrical Engineering (Communication Theory andin Electrical Engineering (Communication Theory and Systems)

  4. Distributed decision-making of networked multi-agent systems in complex environments

    E-Print Network [OSTI]

    Zhu, Minghui

    2011-01-01

    deception attacks on water SCADA systems. In Proceedings ofexamining the stability of a SCADA water management systemexamining the stability of a SCADA water management system

  5. IEEE TRANSACTIONS ON NEURAL NETWORKS. VOL. 2, NO. 2, MARCH 1991 231 A Real-Time Neural System for Color Constancy

    E-Print Network [OSTI]

    Allman, John M.

    IEEE TRANSACTIONS ON NEURAL NETWORKS. VOL. 2, NO. 2, MARCH 1991 231 A Real-Time Neural System for Color Constancy Andrew Moore, Student Member, IEEE, John Allman, and Rodney M. Goodman, Member, IEEE and Neural Systems Program at the California Institute of Technology, Pasadena, CA 91125. IEEE Log Number

  6. Network: Computation in Neural Systems 7 (1996) 123139. Printed in the UK Unsupervised learning in general connectionist systems

    E-Print Network [OSTI]

    Vilela Mendes, Rui

    1996-01-01

    in general connectionist systems J A Dente and R Vilela Mendes§ Laborat´orio de Mecatr´onica, Departamento

  7. Spatially Resolved Mapping of Disorder Type and Distribution in Random Systems using Artificial Neural Network Recognition

    SciTech Connect (OSTI)

    Jesse, Stephen [ORNL; Kalinin, Sergei V [ORNL; Kumar, Amit [ORNL; Ovchinnikov, Oleg S [ORNL; Guo, Senli [ORNL; Griggio, Flavio [ORNL; Trolier-Mckinstry, Susan E [ORNL

    2011-01-01

    The spatial variability of the polarization dynamics in thin film ferroelectric capacitors was probed by recognition analysis of spatially-resolved spectroscopic data. Switching spectroscopy piezoresponse force microscopy was used to measure local hysteresis loops and map them on a 2D random-bond, random-field Ising model. A neural-network based recognition approach was utilized to analyze the hysteresis loops and their spatial variability. Strong variability is observed in the polarization dynamics around macroscopic cracks due to the modified local elastic and electric boundary conditions, with most pronounced effect on the length scale of ~100 nm away from the crack.

  8. Optimization Online - Energy Savings in Wireless Mesh Networks in ...

    E-Print Network [OSTI]

    Jan 24, 2011 ... Abstract: Energy consumption of communication systems is ... Keywords: Energy savings, wireless Mesh Networks, Green networking.

  9. Stephan Klemme Hugh St.C. O'Neill The reaction MgCr2O4 + SiO2 = Cr2O3 + MgSiO3 and the free energy

    E-Print Network [OSTI]

    bar and 298 K (J molA1 ) DG Gibbs free energy change for a reaction among pure end membersStephan Klemme á Hugh St.C. O'Neill The reaction MgCr2O4 + SiO2 = Cr2O3 + MgSiO3 and the free energy of formation of magnesiochromite (MgCr2O4) Received: 9 May 1997 / Accepted: 28 July 1997 Abstract

  10. Energy Management System for an Hybrid Electric Vehicle, Using Ultracapacitors and Neural Networks

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    from regenerative braking, or with scarce power capacity for fast acceleration. The experimental HEV to accept energy from regenerative braking. For this reason, hybrid systems use an auxiliary energy system

  11. Utility Power Network Systems This research addresses the issues of security, system behavior, and socio-economic

    E-Print Network [OSTI]

    Shinozuka, Masanobu

    to the LADWP power system through two 500kV AC transmission lines and one 500kV DC transmission line. From Fig- economic component. July, 2003. Website_ResearchActivities1 #12;Background LADWP's power transmission probabilistic systems analysis of societal interests. Fig.1. Service areas of LADWP Fig.2. Electric power output

  12. Fractals and fractal dimension of systems of blood vessels: An analogy between artery trees, river networks, and urban hierarchies

    E-Print Network [OSTI]

    Chen, Yanguang

    2015-01-01

    An analogy between the fractal nature of networks of arteries and that of systems of rivers has been drawn in the previous works. However, the deep structure of the hierarchy of blood vessels has not yet been revealed. This paper is devoted to researching the fractals, allometric scaling, and hierarchy of blood vessels. By analogy with Horton-Strahler's laws of river composition, three exponential laws have been put forward. These exponential laws can be reconstructed and transformed into three linear scaling laws, which can be named composition laws of blood vessels network. From these linear scaling laws it follows a set of power laws, including the three-parameter Zipf's law on the rank-size distribution of blood vessel length and the allometric scaling law on the length-diameter relationship of blood vessels in different orders. The models are applied to the observed data on human beings and animals early given by other researchers, and an interesting finding is that human bodies more conform to natural r...

  13. Consistency Error Modeling-based Localization in Sensor Networks

    E-Print Network [OSTI]

    Feng, Jessica; Potkonjak, Miodrag

    2006-01-01

    distributed, embedded, wireless systems. IEEE CAS WorkshopConference on Embedded Networked Sensor Systems. (Nov.

  14. Method and apparatus for distributed intrusion protection system for ultra high bandwidth networks

    DOE Patents [OSTI]

    Goranson, Craig A.; Burnette, John R.; Greitzer, Frank L.; McMillan, Bryan H.

    2013-10-15

    A method for providing security to a network having a data stream with a plurality of portions of data, each having differing levels of sensitivity. The data stream is interrogated to determine the presence of predetermined characteristics associated with at least one of the portions of data within the data stream. At least one of the portions of data is then characterized, based upon the portion of data exhibiting a predetermined combination of characteristics, wherein the predetermined combination of characteristics is related to the sensitivity of the portion of data. The portions of the data stream are then distributed into a plurality of different channels, each of the channels associated with different level of sensitivity.

  15. Implementation of a closed-loop structural control system using wireless sensor networks

    E-Print Network [OSTI]

    Stanford University

    systems (bridges, buildings, tunnels, dams) exposed to earthquakes, hurricanes, and typhoons. To mitigate], semi-active hydraulic dampers (SHD) [4], electrorheological (ER) dampers [5], and magnetorheological

  16. Impact of noise on a dynamical system: prediction and uncertainties from a swarm-optimized neural network

    E-Print Network [OSTI]

    López-Caraballo, C H; Salfate, I; Rojas, P; Rivera, M; Palma-Chilla, L

    2015-01-01

    In this study, an artificial neural network (ANN) based on particle swarm optimization (PSO) was developed for the time series prediction. The hybrid ANN+PSO algorithm was applied on Mackey--Glass chaotic time series in the short-term $x(t+6)$. The performance prediction was evaluated and compared with another studies available in the literature. Also, we presented properties of the dynamical system via the study of chaotic behaviour obtained from the predicted time series. Next, the hybrid ANN+PSO algorithm was complemented with a Gaussian stochastic procedure (called {\\it stochastic} hybrid ANN+PSO) in order to obtain a new estimator of the predictions, which also allowed us to compute uncertainties of predictions for noisy Mackey--Glass chaotic time series. Thus, we studied the impact of noise for several cases with a white noise level ($\\sigma_{N}$) from 0.01 to 0.1.

  17. Chaotic behavior control in fluidized bed systems using artificial neural network. Quarterly progress report, April 1, 1996--June 30, 1996

    SciTech Connect (OSTI)

    Bodruzzaman, M.; Essawy, M.A.

    1996-07-30

    We have developed techniques to control the chaotic behavior in the Fluidized Bed (FBC) Systems using Artificial Neural Networks (ANNs). For those techniques to cross from theory to implementation, the computer programs we are developing have to be interfaced with the outside world, as a necessary step towards the actual interface with an FBC system or its experimental mock up. For this reason we are working on a Data Acquisition Board setup that will enable communication between our programs and external systems. Communication is planned to be enabled in both ways to deliver feedback signals from a system to the control programs in one way, and the control signals from the control programs to the controlled system in the other way. On the other hand, since most of our programs are PC based, they have to follow the revolutionary progress in the PC technology. Our programs were developed in the DOS environment using an early version of Microsoft C compiler. For those programs to meet the current needs of most PC users, we are working on converting those programs to the Windows environment, using a very advanced and up to date C++ compiler. This compiler is known as the Microsoft Visual C++ Version 4.0. This compiler enables the implementation of very professional and sophisticated Windows 95, 32 bit applications. It also allows a simple utilization of the Object Oriented Programming (OOP) techniques, and lots of powerful graphical and communication tools known as the Microsoft Foundation Classes (MFC). This compiler also allows creating Dynamic Link Libraries (DLLS) that can be liked together or with other Windows programs. These two main aspects, the computer-system interface and the DOS-Windows migration will give our programs a leap frog towards their real implementation.

  18. Demonstration Assessment of Light Emitting Diode (LED) Walkway Lighting at the Federal Aviation Administration William J. Hughes Technical Center, in Atlantic City, New Jersey

    SciTech Connect (OSTI)

    Kinzey, Bruce R.; Myer, Michael

    2008-03-18

    This report documents the results of a collaborative project to demonstrate a solid state lighting (SSL) general illumination product in an outdoor area walkway application. In the project, six light-emitting diode (LED) luminaires were installed to replace six existing high pressure sodium (HPS) luminaires mounted on 14-foot poles on a set of exterior walkways and stairs at the Federal Aviation Administration (FAA) William J. Hughes Technical Center in Atlantic City, New Jersey, during December, 2007. The effort was a U.S. Department of Energy (DOE) SSL Technology Gateway Demonstration that involved a collaborative teaming agreement between DOE, FAA and Ruud Lighting (and their wholly owned division, Beta LED). Pre- and post-installation power and illumination measurements were taken and used in calculations of energy savings and related economic payback, while personnel impacted by the new lights were provided questionnaires to gauge their perceptions and feedback. The SSL product demonstrated energy savings of over 25% while maintaining illuminance levels and improving illuminance uniformity. PNNL's economic analysis yielded a variety of potential payback results depending on the assumptions used. In the best case, replacing HPS with the LED luminaire can yield a payback as low as 3 years. The new lamps were quite popular with the affected personnel, who gave the lighting an average score of 4.46 out of 5 for improvement.

  19. Decentralized Real-time Control of Water Distribution Networks Using Self-organizing Multi-Agent Systems

    E-Print Network [OSTI]

    Bauer, Bernhard

    Decentralized Real-time Control of Water Distribution Networks Using Self-organizing Multi for the decentralized real- time control of water distribution networks. The agents, which are associated with every pump, tank, and water tower of such a distribution network, interact by means of a decentralized

  20. Fault Diagnosis System for a Multilevel Inverter Using a Principal Component Neural Network Surin Khomfoi

    E-Print Network [OSTI]

    Tolbert, Leon M.

    applications such as industrial manufacturing are dependent upon induction motors and their inverter systems. INTRODUCTION In recent years, industry has begun to demand higher power ratings, and MLID systems have become enables the use of renewable energy sources. Two topologies of multilevel inverters for electric drive

  1. On Feedback Passivity of Discrete-Time Nonlinear Networked Control Systems with Packet Drops

    E-Print Network [OSTI]

    Antsaklis, Panos

    , the system evolves in closed-loop and the increase in storage function is bounded below the energy supplied. #12;2 whose increase in storage function may be greater than the supplied energy at some time steps and the system evolves in closed-loop. Because the process is feedback passive, the resulting increase in storage

  2. Integrated End-to-End Timing Analysis of Networked AUTOSAR-Compliant Systems

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    embedded systems is growing at a very rapid pace. Hence, the automotive industry has been developing Distributed embedded systems employed in the automotive industry are increasing in both scale. In order to deal with such complexity, the automotive industry formed a partnership called the Automotive

  3. Using Bayesian Networks in an Industrial Setting: Making Printing Systems Adaptive

    E-Print Network [OSTI]

    Lucas, Peter

    . For example, in printing systems such characteristics include power di- vision and consumption, the speed of printing, and the quality of the print product. Such trade-offs heavily depend on the system's envi products or low throughput of paper. The problem of adaptability concerns taking actions based on available

  4. Passivity-Based Design of Wireless Networked Control Systems for Robustness to Time-Varying Delays

    E-Print Network [OSTI]

    Antsaklis, Panos

    Antsaklis University of Notre Dame Abstract Real-life cyber-physical systems, such as automotive ve- hicles grand vision for real-world Cyber Physical Systems (CPSs). Real-world CPSs, such as automotive vehicles design flow. mizing performance. The selected design platform (abstrac- tions and tools used for control

  5. An Electricity Trade Model for Multiple Power Distribution Networks in Smart Energy Systems

    E-Print Network [OSTI]

    Pedram, Massoud

    of the presented solutions. I. INTRODUCTION Energy efficiency optimization has drawn significant attention], [2]. Smart energy systems are thus introduced which aim at increasing the efficiency of both energy generation and distribution. The state-of-the-art smart energy systems, including resource allocation

  6. Queuing Network Models for Multi-Channel P2P Live Streaming Systems

    E-Print Network [OSTI]

    Liu, Yong

    , including peer channel switching, peer churn, peer bandwidth heterogeneity, and Zipf-like channel popularity if not millions of live channels. In P2P live video streaming systems, churn occurs on two different time scales-channel or more simply as ISO P2P streaming systems. Unfortunately, this channel churn brings enormous instability

  7. Communication in Home Area Networks

    E-Print Network [OSTI]

    Wang, Yubo

    2012-01-01

    and implementation of smart home energy management systemsStandard Technologies for Smart Home Area Networks EnablingInteroperability framework for smart home systems”, Consumer

  8. XCast : a personal and groupwise broadcasting system for social event networking

    E-Print Network [OSTI]

    Lee, Sung-Hyuck

    2008-01-01

    This thesis describes the design and development of a system that is aimed for personalized and group-wise broadcasts to collaboratively distribute information and to coordinate locally created events in infrastructure-free ...

  9. Theoretical study of network design methodologies for the aerial relay system

    E-Print Network [OSTI]

    Rivera, Jorge M.

    1980-01-01

    Growth of the United States air transportation system is currently facing two major barriers: energy and congestion. While the price of fuel has gone up by approximately an order of magnitude in the last 10 years, there ...

  10. INTERNATIONAL JOURNAL OF EMBEDDED SYSTEMS, FEBRUARY 2005. 1 Context-Aware Process Networks

    E-Print Network [OSTI]

    . van Dijk and Henk J. Sips Abstract-- In industry, embedded systems for stream-based processing. Manuscript date: June 1st, 2004; Camera ready: September 1st, 2004 Hylke van Dijk and Henk Sips

  11. Building a wireless mesh networked real-time electricity metering system in an MIT dormitory

    E-Print Network [OSTI]

    Oehlerking, Austin L

    2009-01-01

    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 Effect current sensors as well as ...

  12. The strategic evolution of systems : principles and framework with applications to space communication networks

    E-Print Network [OSTI]

    Manuse, Jennifer E

    2009-01-01

    Complex systems in operation are constrained by legacy; in other words, the existing properties, structure, components, protocols, software, people and etc. that are inherited over time. This inheritance heavily influences ...

  13. A system architecture evaluation of MOBI.E : the Portuguese Electric Vehicle network

    E-Print Network [OSTI]

    Ratnam, Aravind

    2012-01-01

    Architecting consumes a relatively small portion of the design process, yet the decisions made at this critical stage will direct the overall course of the implementation and operational process. Well architected systems ...

  14. This paper is included in the Proceedings of the 11th USENIX Symposium on Networked Systems

    E-Print Network [OSTI]

    Zhao, Feng

    Exploiting the increasingly wide use of Light-emitting Diode (LED) lighting, in this paper, we study the prob system exploiting visible Light-emitting Diode (LED) lighting infrastructure. Such work is in- spired

  15. Real-Time Wireless Sensor-Actuator Networks for Industrial Cyber-Physical Systems

    E-Print Network [OSTI]

    Lu, Chenyang

    and experimentation of industrial WSAN protocols; (3) cyber-physical co-design of wireless control systems [1], HART [2], WINA [3] and ZigBee [4] have been actively pushing the application of wireless

  16. Networking technology adoption : system dynamics modeling of fiber-to-the-home

    E-Print Network [OSTI]

    Kelic, Andjelka, 1972-

    2005-01-01

    A system dynamics model is developed and run to study the adoption of fiber-to-the-home as a residential broadband technology. Communities that currently do not have broadband in the United States are modeled. This case ...

  17. System development technical interactions and innovation : a network-based investigation

    E-Print Network [OSTI]

    Makumbe, Pedzisayi O

    2006-01-01

    The development of complex engineering systems such as aircraft engines involves many cross functional teams that are usually geographically distributed. These teams interact in several ways but one of the most important ...

  18. Bayesian Belief Network (BBN)-based advisory system development for steam generator replacement project management

    E-Print Network [OSTI]

    Kim, Dohyoung, 1970-

    2002-01-01

    The growing need for improved project management technique points to the usefulness of a knowledge-base advisory system to help project managers understand current and future project status and optimize decisions based ...

  19. _____________________________2008 Conference on Information Sciences and Systems, The Princeton University, March 19--21, 2008 Identifying Sufficient Statistics in Information Networks

    E-Print Network [OSTI]

    Dai, Huaiyu

    _____________________________2008 Conference on Information Sciences and Systems, The Princeton University, March 19--21, 2008 Identifying Sufficient Statistics in Information Networks Huaiyu Dai1-mail: Huaiyu_Dai@ncsu.edu 2 Department of Electrical Engineering and Computer Sciences, University of Tennessee

  20. PRODUCTION PLANNING AND CONTROL, VOL.22 N8 PP 767-781 2011 A neural network for the reduction of a Product Driven System emulation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    PRODUCTION PLANNING AND CONTROL, VOL.22 N°8 PP 767-781 2011 A neural network for the reduction manuscript, published in "Production Planning & Control 22, 8 (2011) 767-781" DOI : 10 manufacturing systems, planning and control processes simulation is essential for evaluation of planning

  1. Journal of Network and Systems Management, Vol. 13, No. 3, September 2005 ( C 2005) DOI: 10.1007/s10922-005-7774-6

    E-Print Network [OSTI]

    Pras, Aiko

    management--more than 300 experts from academia and industry who gathered to attend the various presentations management just as quickly to keep up with those advances. The Technical Program consisted of 53 papersJournal of Network and Systems Management, Vol. 13, No. 3, September 2005 ( C 2005) DOI: 10.1007/s

  2. JMLR: Workshop and Conference Proceedings 1: 112-121 Machine Learning in Systems Biology Event based text mining for integrated network construction

    E-Print Network [OSTI]

    Gent, Universiteit

    based text mining for integrated network construction Yvan Saeys yvan.saeys@psb.ugent.be Sofie Van Systems Biology, VIB Department of Molecular Genetics, University of Ghent 9052, Gent, Belgium Editor entities. Text mining techniques have been increasingly useful to extract such information from

  3. How (Not) to Protect Genomic Data Privacy in a Distributed Network: Using Trail Re-identification to Evaluate and Design Privacy Protection Systems

    E-Print Network [OSTI]

    1 How (Not) to Protect Genomic Data Privacy in a Distributed Network: Using Trail Re-specific genomic data into clinical practice and research raises serious privacy concerns. Various systems have being disclosed, they lack formal proofs. In this paper, we study the erosion of privacy when genomic

  4. Tidal networks 2. Watershed delineation and comparative network morphology

    E-Print Network [OSTI]

    Fagherazzi, Sergio

    of three, we quantify various tidal network properties including common power law relationships which have common power law relationships quantified for terrestrial systems to tidal systems and use these analysesTidal networks 2. Watershed delineation and comparative network morphology Andrea Rinaldo,1 Sergio

  5. System and method for merging clusters of wireless nodes in a wireless network

    DOE Patents [OSTI]

    Budampati, Ramakrishna S. (Maple Grove, MN); Gonia, Patrick S. (Maplewood, MN); Kolavennu, Soumitri N. (Blaine, MN); Mahasenan, Arun V. (Kerala, IN)

    2012-05-29

    A system includes a first cluster having multiple first wireless nodes. One first node is configured to act as a first cluster master, and other first nodes are configured to receive time synchronization information provided by the first cluster master. The system also includes a second cluster having one or more second wireless nodes. One second node is configured to act as a second cluster master, and any other second nodes configured to receive time synchronization information provided by the second cluster master. The system further includes a manager configured to merge the clusters into a combined cluster. One of the nodes is configured to act as a single cluster master for the combined cluster, and the other nodes are configured to receive time synchronization information provided by the single cluster master.

  6. Passivity-Based Distributed Control of Networked Euler-Lagrange Systems With Nonholonomic Constraints

    E-Print Network [OSTI]

    Antsaklis, Panos

    and Panos J. Antsaklis Department of Electrical Engineering University of Notre Dame Notre Dame, IN 46556-Lagrange Systems With Nonholonomic Constraints Han Yu and Panos J. Antsaklis Department of Electrical Engineering. As an illustration of our results here, we study the passivity-based control for the rendezvous problem of car

  7. Restoration of Services in Interdependent Infrastructure Systems: A Network Flows Approach

    E-Print Network [OSTI]

    Mitchell, John E.

    to be transportation (including roads, bridges, water and rail), energy (including electric power, gas and liquid fuels in order to provide services, such as voice and data transmission or power delivery. In general, each, communications lines cannot be used for energy transmission; water system pipelines are not readily available

  8. 36 IEEE SYSTEMS JOURNAL, VOL. 7, NO. 1, MARCH 2013 Floating Sensor Networks for River Studies

    E-Print Network [OSTI]

    of the system for making measurements in unknown environments is highlighted by a combined parameter estimation disturbed during dredging and underwater construction operations, planning reservoir release and gate or Lagrangian (using terminology from fluid mechanics) according to whether they observe the medium as it flows

  9. DUNES: A PerformanceOriented System Support Environment for Dependency Maintenance in Workstation Networks \\Lambda

    E-Print Network [OSTI]

    Park, Kihong

    DUNES: A Performance­Oriented System Support Environment for Dependency Maintenance in Workstation of performance fea­ tures, their properties, and implementation in a sys­ tem support environment called DUNES where both communication and computation costs are explicitly taken into account. DUNES' architecture

  10. Real-time environmental inversion using a network of light receiving systems

    E-Print Network [OSTI]

    Jesus, Sérgio M.

    of the Acoustic Oceano- graphic Buoy (AOB) [4], which uses a surface buoy and an underwater array of acoustic the surface buoy includes a digital storage unit for the acquired data, a wireless communications system as the data can be transferred from the buoy to a platform equipped with processing capabilities before

  11. Network: Computation in Neural Systems March 2007; 18(1): 13

    E-Print Network [OSTI]

    Shadmehr, Reza

    system is to be understood, and which particular information-processing problem is in focus. David Marr's (Marr 1982) seminal work on computational neuroscience for vision made the useful distinction between-level computational neuroscience that addresses the topic of sensory-motor control on all three of Marr's levels, i

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

    E-Print Network [OSTI]

    Zhang, J.

    2006-01-01

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

  13. Methods, systems, and computer program products for network firewall policy optimization

    DOE Patents [OSTI]

    Fulp, Errin W. (Winston-Salem, NC); Tarsa, Stephen J. (Duxbury, MA)

    2011-10-18

    Methods, systems, and computer program products for firewall policy optimization are disclosed. According to one method, a firewall policy including an ordered list of firewall rules is defined. For each rule, a probability indicating a likelihood of receiving a packet matching the rule is determined. The rules are sorted in order of non-increasing probability in a manner that preserves the firewall policy.

  14. A neural network mode inference engine for the advisory system for training and safety 

    E-Print Network [OSTI]

    Nguyen, Thinh Xuan

    1996-01-01

    for different phases of the flight. In order to perform this task, the ASTRAS system is endowed with an artificial intelligence engine or Situation Recognizer (SR) which is able to discern the flight mode from sensor readings. The current SR is based on fuzzy...

  15. A Fault Observant Real-Time Embedded Design for Network-on-Chip Control Systems

    E-Print Network [OSTI]

    Young, R. Michael

    : (1) Cos- mic radiation, particularly during solar flares, (2) electric interfer- ence in harsh missions use radiation-hardened processors to avoid damage from solar radiation. An alternative approach was supported in part by NSF grants CNS-0720496 and CNS-0905181 modify logic or data in systems leading

  16. LED Traffic Light as a Communications Device Grantham Pang, Thomas Kwan, Chi-Ho Chan, Hugh Liu.

    E-Print Network [OSTI]

    Pang, Grantham

    :http://www.eee.hku.hk/~gpang Abstract The visible light from an LED (light emitting diode) traffic light can be modulated and encoded on the description of an audio information system made up of high brightness, visible light emitting diodes (LEDs messages 1. Introduction Recently, high intensity light emitting diodes for traffic signals are available

  17. Model predictive adaptive control of process systems using recurrent neural networks 

    E-Print Network [OSTI]

    Parthasarathy, Sanjay

    1993-01-01

    ) controller structure is used for the simulations. The feasibility of the approach is first demonstrated on a, piece-wise linearized model of the UTSG. It is found that the proposed model predictive adaptive PI controller significantly reduces the system set... Summary 41 41 42 45 49 53 54 V CASE-STUDY: THE U-TUBE STEAM GENERATOR LEVEL CONTROL PROBLEM WATER o6 V. 1 Introduction V. 2 Current Practice: The PID Controller 56 60 CHAPTER Page V. 3 Development of the Piece-wise Linearized Model ol...

  18. Method, systems, and computer program products for implementing function-parallel network firewall

    DOE Patents [OSTI]

    Fulp, Errin W. (Winston-Salem, NC); Farley, Ryan J. (Winston-Salem, NC)

    2011-10-11

    Methods, systems, and computer program products for providing function-parallel firewalls are disclosed. According to one aspect, a function-parallel firewall includes a first firewall node for filtering received packets using a first portion of a rule set including a plurality of rules. The first portion includes less than all of the rules in the rule set. At least one second firewall node filters packets using a second portion of the rule set. The second portion includes at least one rule in the rule set that is not present in the first portion. The first and second portions together include all of the rules in the rule set.

  19. Declarative Failure Recovery for Sensor Networks

    E-Print Network [OSTI]

    Gummadi, Ramakrishna; Kothari, Nupur; Millstein, Todd; Govindan, Ramesh

    2007-01-01

    developing wireless embedded systems software. CENS-TR-9,Approach to Networked Embedded Systems. In PLDI 2003. [14]culties of traditional embedded systems, including scale,

  20. P. Guturu et al.: Message Replication and Consumer Database Synchronization Algorithms and System for Highly Available High Performance Intelligent Networks

    E-Print Network [OSTI]

    Guturu, Parthasarathy

    consumer satisfaction, intelligent network services such as the prepaid card service need to be built upon) Patent #6,826,182, and ii) Patent #6,581,075. Parthasarathy Guturu is with the Electrical Engineering

  1. Topic 2: Introduction to Smart Grid A.H. MohsenianRad (U of T) 1Networking and Distributed Systems

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    . They are beginning to be used on electricity networks, from the power plants and wind farms all the way of supply and demand · 2. Minimizing the Need to Construct Back-up (Peak Load) Power Plants ­ Better demand

  2. Secure Military Social Networking and Rapid Sensemaking in Domain Specific Concept Systems: Research Issues and Future Solutions

    E-Print Network [OSTI]

    Garside, Debbie

    This paper identifies the need for a secure military social networking site and the underlying research issues linked to the successful development of such sites. The paper further proposes a solution to the most basic ...

  3. Fabrication of a Hybrid Microfluidic System Incorporating both Lithographically Patterned Microchannels and a 3D Fiber-Formed Microfluidic Network

    E-Print Network [OSTI]

    Bellan, Leon M.

    A device containing a 3D microchannel network (fabricated using sacrificial melt-spun microfibers) sandwiched between lithographically patterned microfluidic channels offers improved delivery of soluble compounds to a large ...

  4. Phys 597A CMPS 497EPhys 597A, CMPS 497E Graphs and Networks in Systems Biology

    E-Print Network [OSTI]

    Albert, Réka

    an underlying network topologynetwork topology Internet, router level · nodes: routers, hosts · edges: wires, cables, wireless Q: Which edges are static andQ: Which edges are static and which change? · nodes

  5. Seven Deadliest Network Attacks

    SciTech Connect (OSTI)

    Prowell, Stacy J [ORNL; Borkin, Michael [None; Kraus, Robert [Solutionary, Inc.

    2010-05-01

    Do you need to keep up with the latest hacks, attacks, and exploits effecting networks? Then you need "Seven Deadliest Network Attacks". This book pinpoints the most dangerous hacks and exploits specific to networks, laying out the anatomy of these attacks including how to make your system more secure. You will discover the best ways to defend against these vicious hacks with step-by-step instruction and learn techniques to make your computer and network impenetrable. Attacks detailed in this book include: Denial of Service; War Dialing; Penetration 'Testing'; Protocol Tunneling; Spanning Tree Attacks; Man-in-the-Middle; and, Password Replay. Knowledge is power, find out about the most dominant attacks currently waging war on computers and networks globally. Discover the best ways to defend against these vicious attacks; step-by-step instruction shows you how. Institute countermeasures, don't be caught defenseless again, learn techniques to make your computer and network impenetrable.

  6. The purpose of this paper is to provide a quick overview of neural networks and to explain how they can be used in control systems. We introduce the multilayer perceptron neural network and describe how it can be used for function approximation.

    E-Print Network [OSTI]

    Hagan, Martin

    reactor, a robot arm, and a magnetic levitation system. 1. INTRODUCTION In this tutorial paper we want Model The multilayer perceptron neural network is built up of simple components. We will begin

  7. Proposal to extend a blanket contract for the supply and maintenance fo Network-Attached Storage systems for Oracle databases and for shared file servers for the LHC experiments

    E-Print Network [OSTI]

    2011-01-01

    Proposal to extend a blanket contract for the supply and maintenance fo Network-Attached Storage systems for Oracle databases and for shared file servers for the LHC experiments

  8. Integrated Approach to Revamping Heat Exchangers Networks 

    E-Print Network [OSTI]

    Glass, K. E.; Dhole, V.; Wang, Y.

    2002-01-01

    A heat exchanger network constitutes the core of the plant energy systems interlinking the core process operation and the utility systems. This paper will illustrate an integrated approach for the revamp of a heat exchanger network by bringing...

  9. Optimization in Networks

    E-Print Network [OSTI]

    Adilson E. Motter; Zoltan Toroczkai

    2007-07-07

    The recent surge in the network modeling of complex systems has set the stage for a new era in the study of fundamental and applied aspects of optimization in collective behavior. This Focus Issue presents an extended view of the state of the art in this field and includes articles from a large variety of domains where optimization manifests itself, including physical, biological, social, and technological networked systems.

  10. Networks in Buildings: Which Path Forward?

    E-Print Network [OSTI]

    Nordman, Bruce

    2010-01-01

    Convergence and Building Automation Systems”. In REHVA Worldbuildings. In the residential sector, networks are most commonly installed for “home automation”

  11. INFORMATION ENGINEERING Principles, Technologies, Networks, and Applications

    E-Print Network [OSTI]

    Huang, Jianwei

    AccessApplications Smartgrids,GreenCommunications TelecommunicationSwitching Peer-to-PeerSystems OnlineSocialNetworks Internet

  12. Media Release Dr. Larry Hughes

    E-Print Network [OSTI]

    Hughes, Larry

    in consumption patterns as there are no penalties associated with over-consumption." Changing the way we use, "Second, customers with low energy consumption can and do cross- subsidize customers with high energy per kilowatt-hour can be a mechanism to encourage customers to reduce energy consumption, since

  13. Some electric myths Larry Hughes

    E-Print Network [OSTI]

    Hughes, Larry

    industrial demand (460 GWh), there has also been a significant increase in residential electricity demand in residential electricity demand is the result of the increased use of electricity for space heating since and Nova Scotia's demand for electricity, both of which are based, in part, upon the arguments made when

  14. Some electric myths Larry Hughes

    E-Print Network [OSTI]

    Hughes, Larry

    in residential electricity demand (133 GWh). If these trends continue into the fourth quarter, Nova Scotia Power of the rise in residential electricity demand is the result of the increased use of electricity for space of coal and Nova Scotia's demand for electricity, both of which are based, in part, upon the arguments

  15. Dynamic Networks: Recent Results and Applications

    E-Print Network [OSTI]

    Nagurney, Anna

    #12;Energy Networks provide the energy for our homes, schools, and businesses, and to run our vehicles-Making Characterized by: · complex interactions among decision-makers in organizations; · alternative and at times. #12;Duke Energy Gas Pipeline Network #12;Components of Common Physical Networks Network System Nodes

  16. Recommended Practices Guide For Securing ZigBee Wireless Networks...

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

    Wireless Networks in Process Control System Environments More Documents & Publications Wireless System Considerations When Implementing NERC Critical Infrastructure Protection...

  17. Recommended Practices Guide For Securing ZigBee Wireless Networks...

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

    Recommended Practices Guide For Securing ZigBee Wireless Networks in Process Control System Environments Recommended Practices Guide For Securing ZigBee Wireless Networks in...

  18. Artificial neural networks in models of specialization, guild evolution

    E-Print Network [OSTI]

    Getz, Wayne M.

    Artificial neural networks in models of specialization, guild evolution and sympatric speciation on host choice, employing artificial neural networks as models for the host recognition system

  19. THE CORALREEF SOFTWARE SUITE AS A TOOL FOR SYSTEM AND NETWORK ADMINISTRATORS 1 The CoralReef software suite as a tool for system

    E-Print Network [OSTI]

    California at San Diego, University of

    exible enough for rapid in-house customization. Existing passive data collection tools are typically to ows analysis to real-time report gen- eration. CoralReef provides a convenient set of passive data networks has become increasingly diĆcult and impor- tant. To this end we have created the CoralReef passive

  20. Early Warning of Network Catastrophes

    E-Print Network [OSTI]

    resilience of nation's networks Reduce cost of widespread outages and degradations Transfer methods to other systems of national importance, e.g., computational clouds, cyber- physical systems, smart power grids August 28, 2014 Early Warning of Network Catastrophes 2 #12;Argument in Brief Problem

  1. PINCO: a Pipelined In-Network COmpression Scheme for Data Collection in Wireless Sensor Networks

    E-Print Network [OSTI]

    Liu, Ling

    networks, low-power cir- cuit design, and micro electro-mechanical systems (MEMS) has led to the production

  2. Chimera states in networks of nonlocally coupled Hindmarsh-Rose neuron models

    E-Print Network [OSTI]

    Johanne Hizanidis; Vasilis Kanas; Anastasios Bezerianos; Tassos Bountis

    2013-07-20

    We have identified the occurrence of chimera states for various coupling schemes in networks of two-dimensional and three-dimensional Hindmarsh-Rose oscillators, which represent realistic models of neuronal ensembles. This result, together with recent studies on multiple chimera states in nonlocally coupled FitzHugh-Nagumo oscillators, provide strong evidence that the phenomenon of chimeras may indeed be relevant in neuroscience applications. Moreover, our work verifies the existence of chimera states in coupled bistable elements, whereas to date chimeras were known to arise in models possessing a single stable limit cycle. Finally, we have identified an interesting class of mixed oscillatory states, in which desynchronized neurons are uniformly interspersed among the remaining ones that are either stationary or oscillate in synchronized motion.

  3. A structured approach for the engineering of biochemical network

    E-Print Network [OSTI]

    Breitling, Rainer

    . Keywords: systems biology; biochemical networks; modelling; signal transduction; Petri nets; ordinaryA structured approach for the engineering of biochemical network models, illustrated for signalling; Received (in revised form): 2nd May 2008 Abstract Quantitative models of biochemical networks (signal

  4. Glyph-Based Generic Network Visualization Robert F. Erbacher

    E-Print Network [OSTI]

    Erbacher, Robert F.

    for constant real-time monitoring of the network environment. Keywords: Information Visualization, Computer monitoring environment. The need for intrusion detection monitoring should be clear. Traffic monitoring network for their livelihood. Network managers and system administrators must monitor activity

  5. Communication in automation, including networking and wireless

    E-Print Network [OSTI]

    Antsaklis, Panos

    Communication in automation, including networking and wireless Nicholas Kottenstette and Panos J and networking in automation is given. Digital communication fundamentals are reviewed and networked control are presented. 1 Introduction 1.1 Why communication is necessary in automated systems Automated systems use

  6. Sensor networks for social networks

    E-Print Network [OSTI]

    Farry, Michael P. (Michael Patrick)

    2006-01-01

    This thesis outlines the development of software that makes use of Bayesian belief networks and signal processing techniques to make meaningful inferences about real-world phenomena using data obtained from sensor networks. ...

  7. Network-Aware Overlays with Network Coordinates Peter Pietzuch, Jonathan Ledlie, Michael Mitzenmacher, Margo Seltzer

    E-Print Network [OSTI]

    Mitzenmacher, Michael

    Network-Aware Overlays with Network Coordinates Peter Pietzuch, Jonathan Ledlie, Michael coordinates, which embed network distance measurements in a coordinate system, were introduced as a method for determining the proximity of nodes for rout- ing table updates in overlay networks. Their power has far

  8. Galen Sasaki University of Hawaii 1 Optical Networks: A Practical

    E-Print Network [OSTI]

    Sasaki, Galen H.

    1 Galen Sasaki University of Hawaii 1 Optical Networks: A Practical Perspective Galen Sasaki Galen Sasaki University of Hawaii 2 Introduction To Optical Networks Road Map · Telecommunication Networks · System and Network Evolution Galen Sasaki University of Hawaii 3 Road Map · Telecommunication Networks

  9. Advanced battery modeling using neural networks 

    E-Print Network [OSTI]

    Arikara, Muralidharan Pushpakam

    1993-01-01

    battery models are available today that can accurately predict the performance of the battery system. This thesis presents a modeling technique for batteries employing neural networks. The advantage of using neural networks is that the effect of any...

  10. Investigating Database Security in a Networked Environment

    E-Print Network [OSTI]

    Wagner, Paul J.

    Investigating Database Security in a Networked Environment Matthew Giuliani Computer Science wagnerpj@uwec.edu Abstract Database and network security have traditionally been separate fields within flowing between client and database systems. Although vender specific information is available for many

  11. Re-engineering knowledge networks for development

    E-Print Network [OSTI]

    Raghavan, Amrith, 1976-

    2004-01-01

    This thesis examines the evolution of Internet based knowledge networks (e-knowledge networks) in the domain of sustainable development. The objective of this thesis is to use an engineering systems approach to understand ...

  12. Optimal static pricing for a tree network

    E-Print Network [OSTI]

    Caro, Felipe

    We study the static pricing problem for a network service provider in a loss system with a tree structure. In the network, multiple classes share a common inbound link and then have dedicated outbound links. The motivation ...

  13. Control Principles of Complex Networks

    E-Print Network [OSTI]

    Liu, Yang-Yu

    2015-01-01

    A reflection of our ultimate understanding of a complex system is our ability to control its behavior. Typically, control has multiple prerequisites: It requires an accurate map of the network that governs the interactions between the system's components, a quantitative description of the dynamical laws that govern the temporal behavior of each component, and an ability to influence the state and temporal behavior of a selected subset of the components. With deep roots in nonlinear dynamics and control theory, notions of control and controllability have taken a new life recently in the study of complex networks, inspiring several fundamental questions: What are the control principles of complex systems? How do networks organize themselves to balance control with functionality? To address these here we review recent advances on the controllability and the control of complex networks, exploring the intricate interplay between a system's structure, captured by its network topology, and the dynamical laws that go...

  14. Int. J. Communication Networks and Distributed Systems, Vol. 6, No. 1, 2011 59 Copyright 2011 Inderscience Enterprises Ltd.

    E-Print Network [OSTI]

    Wang, Yongge

    Inderscience Enterprises Ltd. sSCADA: securing SCADA infrastructure communications Yongge Wang Department@uncc.edu Abstract: Distributed control systems (DCS) and supervisory control and data acquisition (SCADA) systems the control systems. American Gas Association (AGA), IEC TC57 WG15, IEEE, NIST and National SCADA Test Bed

  15. IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 56, NO. 9, SEPTEMBER 2010 4539 Network Coding for Distributed Storage Systems

    E-Print Network [OSTI]

    Wainwright, Martin J.

    for Distributed Storage Systems Alexandros G. Dimakis, Member, IEEE, P. Brighten Godfrey, Student Member, IEEE Abstract--Distributed storage systems provide reliable access to data through redundancy spread over individually unreliable nodes. Application scenarios include data centers, peer-to-peer storage systems

  16. Wide-frequency range, dynamic matching network and power system for the “Shoelace” radio frequency antenna on the Alcator C-Mod tokamak

    SciTech Connect (OSTI)

    Golfinopoulos, Theodore, E-mail: golfit@mit.edu; LaBombard, Brian; Burke, William; Parker, Ronald R.; Parkin, William; Woskov, Paul [Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139 (United States)] [Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139 (United States)

    2014-04-15

    A wide-frequency range (50–300 kHz) power system has been implemented for use with a new RF antenna – the “Shoelace” antenna – built to drive coherent plasma fluctuations in the edge of the Alcator C-Mod tokamak. A custom, dynamically tunable matching network allows two commercial 1 kW, 50-? RF amplifiers to drive the low-impedance, inductive load presented by the antenna. This is accomplished by a discretely variable L-match network, with 81 independently selected steps available for each of the series and parallel legs of the matching configuration. A compact programmable logic device provides a control system that measures the frequency with better than 1 kHz accuracy and transitions to the correct tuning state in less than 1 ms. At least 85% of source power is dissipated in the antenna across the operational frequency range, with a minimum frequency slew rate of 1 MHz/s; the best performance is achieved in the narrower band from 80 to 150 kHz which is of interest in typical experiments. The RF frequency can be run with open-loop control, following a pre-programmed analog waveform, or phase-locked to track a plasma fluctuation diagnostic signal in real time with programmable phase delay; the amplitude control is always open-loop. The control waveforms and phase delay are programmed remotely. These tools have enabled first-of-a-kind measurements of the tokamak edge plasma system response in the frequency range and at the wave number at which coherent fluctuations regulate heat and particle transport through the plasma boundary.

  17. USENIX Association NSDI '09: 6th USENIX Symposium on Networked Systems Design and Implementation 59 PADS: A Policy Architecture for Distributed Storage Systems

    E-Print Network [OSTI]

    Dahlin, Michael D.

    PADS: A Policy Architecture for Distributed Storage Systems Nalini Belaramani, Jiandan Zheng§, Amol for build- ing distributed storage systems. A policy architecture has two aspects. First, a common set for how policies, them- selves, should be specified. In the case of distributed storage systems, PADS

  18. Cognitive Radio Networks as Sensor Networks

    E-Print Network [OSTI]

    Bandari, Dorna; Yang, Seung R.; Zhao, Yue; Pottie, Gregory

    2007-01-01

    assuming the cognitive radios know their own coordinates.Networked Sensing Cognitive Radio Networks As SensorIntroduction: Cognitive Radio (CR) Networks The Need For

  19. MEAN-FIELD BOOLEAN NETWORK MODEL OF A SIGNAL TRANSDUCTION NETWORK

    E-Print Network [OSTI]

    Matache, Dora

    MEAN-FIELD BOOLEAN NETWORK MODEL OF A SIGNAL TRANSDUCTION NETWORK Student:Naomi Kochi Advisor that the system is stable under a variety of parameter combinations. It is also shown that this model is suitable presents some prospects for using Boolean network models for predictive modeling of systems

  20. Programmability of Chemical Reaction Networks

    E-Print Network [OSTI]

    Winfree, Erik

    Programmability of Chemical Reaction Networks Matthew Cook1 , David Soloveichik2 , Erik Winfree2 Chemical Reaction Networks (SCRNs), a for- mal model that considers a set of chemical reactions acting Logic Circuits, Vector Addition Systems, Petri Nets, Gate Implementability, Primitive Recursive

  1. CONFERENCE ON INFORMATION SCIENCES AND SYSTEMS (CISS), INVITED PAPER ON OPTIMIZATION OF COMM. NETWORKS, MARCH 2006 1 Optimal Backpressure Routing for Wireless

    E-Print Network [OSTI]

    Neely, Michael J.

    an average power that can be pushed arbitrarily close to the minimum average power required for network consider a multi-node, multi-hop wireless network with "unreliable" channels. Each transmission link has knowledge of which receivers are within transmission range may be uncertain, or in dense ad-hoc networks

  2. Partitioning networks into communities by message passing MOE-Microsoft Laboratory for Intelligent Computing and Intelligent Systems,

    E-Print Network [OSTI]

    Nardini, Christine

    for Intelligent Computing and Intelligent Systems, Department of Computer Science and Engineering, Shanghai Jiao and Intelligent Systems, Department of Computer Science and Engineering, Shanghai Jiao Tong University, 800 Dong of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Chinese Academy of Sciences, 320 Yue

  3. A neural network for the reduction of a Product Driven System emulation Philippe THOMAS, Andr THOMAS, Marie-Christine SUHNER

    E-Print Network [OSTI]

    ,version1-25Feb2011 Author manuscript, published in "Production Planning & Control 22, 8 (2011) 767. Introduction In classical centralized manufacturing systems, planning and control processes simulation 1994, Roder 1994). At these levels of planning and control, to estimate how the whole physical system

  4. Deterministic Scale-Free Networks

    E-Print Network [OSTI]

    Albert-Laszlo Barabasi; Erzsebet Ravasz; Tamas Vicsek

    2002-02-06

    Scale-free networks are abundant in nature and society, describing such diverse systems as the world wide web, the web of human sexual contacts, or the chemical network of a cell. All models used to generate a scale-free topology are stochastic, that is they create networks in which the nodes appear to be randomly connected to each other. Here we propose a simple model that generates scale-free networks in a deterministic fashion. We solve exactly the model, showing that the tail of the degree distribution follows a power law.

  5. On Counteracting Byzantine Attacks in Network Coded Peer-to-Peer Networks

    E-Print Network [OSTI]

    Medard, Muriel

    Random linear network coding can be used in peer-to- peer networks to increase the efficiency of content distribution and distributed storage. However, these systems are particularly susceptible to Byzantine attacks. We ...

  6. Optimization of synchronization in gradient clustered networks

    E-Print Network [OSTI]

    Xingang Wang; Liang Huang; Ying-Cheng Lai; Choy Heng Lai

    2007-11-23

    We consider complex clustered networks with a gradient structure, where sizes of the clusters are distributed unevenly. Such networks describe more closely actual networks in biophysical systems and in technological applications than previous models. Theoretical analysis predicts that the network synchronizability can be optimized by the strength of the gradient field but only when the gradient field points from large to small clusters. A remarkable finding is that, if the gradient field is sufficiently strong, synchronizability of the network is mainly determined by the properties of the subnetworks in the two largest clusters. These results are verified by numerical eigenvalue analysis and by direct simulation of synchronization dynamics on coupled-oscillator networks.

  7. Towards A Network-of-Networks Framework for Cyber Security

    SciTech Connect (OSTI)

    Halappanavar, Mahantesh; Choudhury, Sutanay; Hogan, Emilie A.; Hui, Peter SY; Johnson, John R.; Ray, Indrajit; Holder, Lawrence B.

    2013-06-07

    Networks-of-networks (NoN) is a graph-theoretic model of interdependent networks that have distinct dynamics at each network (layer). By adding special edges to represent relationships between nodes in different layers, NoN provides a unified mechanism to study interdependent systems intertwined in a complex relationship. While NoN based models have been proposed for cyber-physical systems, in this paper we build towards a three-layer NoN model for an enterprise cyber system. Each layer captures a different facet of a cyber system. We then discuss the potential benefits of graph-theoretic analysis enabled from such a model. Our goal is to provide a novel and powerful tool for modeling and analyzing problems in cyber security.

  8. National Technology Centers for Networks and Pathways

    E-Print Network [OSTI]

    Ungerleider, Leslie G.

    TCNP National Technology Centers for Networks and Pathways Technology and Resources for Proteomics of Dynamic Systems #12;Table of Contents An Introduction to the National Technology Centers for Networks) ................................................................................................................................................................36 1 | National Technology Centers for Networks and Pathways #12;An Introduction to the National

  9. Networked UAV Command, Control and Communication

    E-Print Network [OSTI]

    Frew, Eric W.

    Networked UAV Command, Control and Communication Jack Elston , Eric Frew , Brian Argrow University of Colorado, Boulder, CO, 80309, USA The networked UAV command, control, and communication project for UAVs. The system utilizes an existing ad-hoc network to demonstrate the ability of UAVs to make mission

  10. Multiresolution Storage and Search in Sensor Networks

    E-Print Network [OSTI]

    Heidemann, John

    battery-operated nodes. Constructing a storage and search system that satisfies the requirements of dataMultiresolution Storage and Search in Sensor Networks DEEPAK GANESAN University of Massachusetts in wireless sensor networks: in-network storage and distributed search. The need for these techniques arises

  11. Modeling Wireless Shadow Networks Filip De Turck

    E-Print Network [OSTI]

    Columbia University

    Modeling Wireless Shadow Networks Filip De Turck Department of Information Technology (INTEC) Ghent fail- ures. We consider wireless recovery networks as a strong candidate to provide emergency of wireless shadow networks and study their throughput as a function of the system parameters. We address

  12. A Systems-Integration Approach to the Optimal Design and Operation of Macroscopic Water Desalination and Supply Networks 

    E-Print Network [OSTI]

    Atilhan, Selma

    2012-02-14

    With the escalating levels of water demand, there is a need for expansion in the capacity of water desalination infrastructure and for better management and distribution of water resources. This dissertation introduces a systems approach...

  13. Design, analysis and simulation study of a Scalable all-Optical Interconnection Network (SCOPIN) for multiprocessing systems 

    E-Print Network [OSTI]

    Okorafor, Ekpe Apia

    2002-01-01

    . Aspects like the use of totally free space optics, fiber optics, electro-optics, light splitting and grating, etc. are all under research. Optical systems offer the strengths of both temporal and spatial bandwidth to be exploited in the construction...

  14. Portable broadband seismic network in Vietnam for investigating tectonic deformation, the Earth's interior, and early-warning systems

    E-Print Network [OSTI]

    Wu, Yih-Min

    's interior, and early-warning systems for earthquakes and tsunamis Bor-Shouh Huang a,*, Tu Son Le b , Chun for upgrades to enable the real-time trans- mission of data for earthquake monitoring and tsunami warnings

  15. Queueing networks with a single shared server: light and heavy traffic

    E-Print Network [OSTI]

    van der Mei, Rob

    such as computer systems, communication networks, logistics, flexible manu- facturing systems, robotics systems, production systems and maintenance systems (see, for example, [1] for overviews). Applications of this type

  16. Statistical Analysis of Bus Networks in India

    E-Print Network [OSTI]

    Chatterjee, Atanu; Ramadurai, Gitakrishnan

    2015-01-01

    Through the past decade the field of network science has established itself as a common ground for the cross-fertilization of exciting inter-disciplinary studies which has motivated researchers to model almost every physical system as an interacting network consisting of nodes and links. Although public transport networks such as airline and railway networks have been extensively studied, the status of bus networks still remains in obscurity. In developing countries like India, where bus networks play an important role in day-to-day commutation, it is of significant interest to analyze its topological structure and answer some of the basic questions on its evolution, growth, robustness and resiliency. In this paper, we model the bus networks of major Indian cities as graphs in \\textit{L}-space, and evaluate their various statistical properties using concepts from network science. Our analysis reveals a wide spectrum of network topology with the common underlying feature of small-world property. We observe tha...

  17. Community Detection from Location-Tagged Networks

    E-Print Network [OSTI]

    Liu, Zhi

    2015-01-01

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

  18. Microsystem process networks

    DOE Patents [OSTI]

    Wegeng, Robert S [Richland, WA; TeGrotenhuis, Ward E [Kennewick, WA; Whyatt, Greg A [West Richland, WA

    2010-01-26

    Various aspects and applications or microsystem process networks are described. The design of many types of microsystems can be improved by ortho-cascading mass, heat, or other unit process operations. Microsystems having energetically efficient microchannel heat exchangers are also described. Detailed descriptions of numerous design features in microcomponent systems are also provided.

  19. Microsystem process networks

    DOE Patents [OSTI]

    Wegeng, Robert S. (Richland, WA); TeGrotenhuis, Ward E. (Kennewick, WA); Whyatt, Greg A. (West Richland, WA)

    2007-09-18

    Various aspects and applications of microsystem process networks are described. The design of many types of Microsystems can be improved by ortho-cascading mass, heat, or other unit process operations. Microsystems having energetically efficient microchannel heat exchangers are also described. Detailed descriptions of numerous design features in microcomponent systems are also provided.

  20. Microsystem process networks

    DOE Patents [OSTI]

    Wegeng, Robert S. (Richland, WA); TeGrotenhuis, Ward E. (Kennewick, WA); Whyatt, Greg A. (West Richland, WA)

    2006-10-24

    Various aspects and applications of microsystem process networks are described. The design of many types of microsystems can be improved by ortho-cascading mass, heat, or other unit process operations. Microsystems having exergetically efficient microchannel heat exchangers are also described. Detailed descriptions of numerous design features in microcomponent systems are also provided.

  1. Bit-rate allocation for multiple video streams : dual-frame video coding and competitive equilibrium methods

    E-Print Network [OSTI]

    Tiwari, Mayank

    2010-01-01

    Technology, Roorkee, India Software Engineer, Hughes Software Systems, Gurgaon, India R & D Engineer, Cybernetics

  2. Microfluidic Systems Integrated Microfluidic Systems**

    E-Print Network [OSTI]

    Ismagilov, Rustem F.

    Microfluidic Systems Integrated Microfluidic Systems** Rustem F. Ismagilov* Keywords: analytical methods · enzymes · microfluidics · microreactors · protein structures Microfluidic systems use networks of channels thinner than a human hair to manipulate nanoliter volumes of re- agents. The goal of microfluidics

  3. Phoebus: Network Middleware for Next-Generation Network Computing

    SciTech Connect (OSTI)

    Martin Swany

    2012-06-16

    The Phoebus project investigated algorithms, protocols, and middleware infrastructure to improve end-to-end performance in high speed, dynamic networks. The Phoebus system essentially serves as an adaptation point for networks with disparate capabilities or provisioning. This adaptation can take a variety of forms including acting as a provisioning agent across multiple signaling domains, providing transport protocol adaptation points, and mapping between distributed resource reservation paradigms and the optical network control plane. We have successfully developed the system and demonstrated benefits. The Phoebus system was deployed in Internet2 and in ESnet, as well as in GEANT2, RNP in Brazil and over international links to Korea and Japan. Phoebus is a system that implements a new protocol and associated forwarding infrastructure for improving throughput in high-speed dynamic networks. It was developed to serve the needs of large DOE applications on high-performance networks. The idea underlying the Phoebus model is to embed Phoebus Gateways (PGs) in the network as on-ramps to dynamic circuit networks. The gateways act as protocol translators that allow legacy applications to use dedicated paths with high performance.

  4. Modular sensor network node

    DOE Patents [OSTI]

    Davis, Jesse Harper Zehring (Berkeley, CA); Stark, Jr., Douglas Paul (Tracy, CA); Kershaw, Christopher Patrick (Hayward, CA); Kyker, Ronald Dean (Livermore, CA)

    2008-06-10

    A distributed wireless sensor network node is disclosed. The wireless sensor network node includes a plurality of sensor modules coupled to a system bus and configured to sense a parameter. The parameter may be an object, an event or any other parameter. The node collects data representative of the parameter. The node also includes a communication module coupled to the system bus and configured to allow the node to communicate with other nodes. The node also includes a processing module coupled to the system bus and adapted to receive the data from the sensor module and operable to analyze the data. The node also includes a power module connected to the system bus and operable to generate a regulated voltage.

  5. Interatomic potentials for ionic systems with density functional accuracy based on charge densities obtained by a neural network

    E-Print Network [OSTI]

    Ghasemi, S Alireza; Saha, Santanu; Goedecker, Stefan

    2015-01-01

    Based on an analysis of the short range chemical environment of each atom in a system, standard machine learning based approaches to the construction of interatomic potentials aim at determining directly the central quantity which is the total energy. This prevents for instance an accurate description of the energetics of systems where long range charge transfer is important as well as of ionized systems. We propose therefore not to target directly with machine learning methods the total energy but an intermediate physical quantity namely the charge density, which then in turn allows to determine the total energy. By allowing the electronic charge to distribute itself in an optimal way over the system, we can describe not only neutral but also ionized systems with unprecedented accuracy. We demonstrate the power of our approach for both neutral and ionized NaCl clusters where charge redistribution plays a decisive role for the energetics. We are able to obtain chemical accuracy, i.e. errors of less than a mil...

  6. Networked Loads in the Distribution Grid

    E-Print Network [OSTI]

    Wang, Zhifang; Li, Xiao; Muthukumar, Vishak; Scaglione, Anna; Peisert, Sean; McParland, Chuck

    2012-01-01

    is structured according to the SCADA model. Although thea prototypical instance of SCADA network in the distributionservers that are part of a SCADA system, which has grown in

  7. Design Considerations for Solar Energy Harvesting Wireless Embedded Systems

    E-Print Network [OSTI]

    Raghunathan, Vijay; Kansal, Aman; Hsu, Jason; Friedman, Jonathan K; Srivastava, Mani B

    2005-01-01

    CVS repository, Networked and Embedded Systems Lab, UCLA. (Mani Srivastava Networked and Embedded Systems Lab (NESL)harvesting, wireless embedded systems and presents the

  8. The importance of input variables to a neural network fault-diagnostic system for nuclear power plants

    SciTech Connect (OSTI)

    Lanc, T.L.

    1992-01-01

    This thesis explores safety enhancement for nuclear power plants. Emergency response systems currently in use depend mainly on automatic systems engaging when certain parameters go beyond a pre-specified safety limit. Often times the operator has little or no opportunity to react since a fast scram signal shuts down the reactor smoothly and efficiently. These accidents are of interest to technical support personnel since examining the conditions that gave rise to these situations help determine causality. In many other cases an automated fault-diagnostic advisor would be a valuable tool in assisting the technicians and operators to determine what just happened and why.

  9. The importance of input variables to a neural network fault-diagnostic system for nuclear power plants

    SciTech Connect (OSTI)

    Lanc, T.L.

    1992-12-31

    This thesis explores safety enhancement for nuclear power plants. Emergency response systems currently in use depend mainly on automatic systems engaging when certain parameters go beyond a pre-specified safety limit. Often times the operator has little or no opportunity to react since a fast scram signal shuts down the reactor smoothly and efficiently. These accidents are of interest to technical support personnel since examining the conditions that gave rise to these situations help determine causality. In many other cases an automated fault-diagnostic advisor would be a valuable tool in assisting the technicians and operators to determine what just happened and why.

  10. Cluster-Based Failure Detection Service for Large-Scale Ad Hoc Wireless Network Applications

    E-Print Network [OSTI]

    Sanders, William H.

    Introduction Recent advances in MEMS (micro-electro-mechanical systems) and wireless networking technologies

  11. Energy-Conservation Clustering Protocol based on Heat Conductivity for Wireless Sensor Networks

    E-Print Network [OSTI]

    Landfeldt, Bjorn

    -sensors based on MEMS (Micro-Electro-Mechanical Systems) technology. A wireless sensor network is composed

  12. Network Management: State of the Art Raouf Boutaba and Jin Xiao

    E-Print Network [OSTI]

    Boutaba, Raouf

    network management as all measures ensuring the effective and efficient operations of a system within its: to provide network with high quality of service, minimize network downtime. Network management systems shouldNetwork Management: State of the Art Raouf Boutaba and Jin Xiao Department of Computer Science

  13. Launching applications on compute and service processors running under different operating systems in scalable network of processor boards with routers

    DOE Patents [OSTI]

    Tomkins, James L. (Albuquerque, NM); Camp, William J. (Albuquerque, NM)

    2009-03-17

    A multiple processor computing apparatus includes a physical interconnect structure that is flexibly configurable to support selective segregation of classified and unclassified users. The physical interconnect structure also permits easy physical scalability of the computing apparatus. The computing apparatus can include an emulator which permits applications from the same job to be launched on processors that use different operating systems.

  14. Fault diagnosis of pneumatic systems with artificial neural network algorithms M. Demetgul a,*, I.N. Tansel b

    E-Print Network [OSTI]

    Rucci, Michele

    the pneumatic system worked perfectly and had some faults including empty magazine, zero vacuum, inappropriate, not vacuuming the material and low air pressure. The signals of eight sensors were collected during the entire, 2008), automobile engines, bearings, hydraulic servo-valves, servomotors, check-valves (Seong et al

  15. DRAFT: To appear in Theory of Computing Systems November 2003 Distributed Object Location in a Dynamic Network

    E-Print Network [OSTI]

    Kubiatowicz, John D.

    locality and rapid adaptation to arriving and departing nodes. We show how these two properties can widely for availability, durability, and locality.1 This has lead to a renewed interest in techniques storage and balanced computational load. 4. Dynamic Membership: The system must adapt to arriving

  16. Int. J. Communication Networks and Distributed Systems, Vol. x, No. x, xxxx 1 Profiling Distributed Connection Chains

    E-Print Network [OSTI]

    Almulhem, Ahmad

    problem. We then propose a solution through hacker profiling. Our solution includes a novel hacker model that in- tegrates information about a hacker's linguistic, operating system and time of activity. It also Inderscience Enterprises Ltd. #12;2 A. Almulhem and I. Traore victim hacker Figure 1 Using a connection

  17. NONLINEAR CONTROL OF POWER NETWORK MODELS USING FEEDBACK LINEARIZATION

    E-Print Network [OSTI]

    Wedeward, Kevin

    network can affect each other. We consider a simple model of a power system derived from singular analysis of large electric power networks is in- creasingly important as power systems become larger construct minimally complicated dynamical models of power networks as affine nonlinear control systems

  18. Village agroforestry systems and tree-use practices: A case study in Sri Lanka. Multipurpose tree species network research series

    SciTech Connect (OSTI)

    Wickramasinghe, A.

    1992-01-01

    Village agroforestry systems in Sri Lanka have evolved through farmers' efforts to meet their survival needs. The paper examines farmers' land-use systems and their perceptions of the role of trees in the villages of Bambarabedda and Madugalla in central Sri Lanka. The benefits of village agroforestry are diverse food, fuelwood, fodder, timber, and mulch, but food products are of outstanding importance. The ability of Artocarpus heterophyllus (the jackfruit tree) and Cocos nucifera (coconut) to ensure food security during the dry season and provide traditional foods throughout the year, as well as to grow in limited space, make them popular crops in the two study villages. The study recommends that further research precede the formulation of agricultural interventions and that efforts to promote improved tree varieties recognize farmers' practices and expressed needs.

  19. Hydraulic model analysis of water distribution system, Rockwell International, Rocky Flats, Colorado

    SciTech Connect (OSTI)

    Perstein, J.; Castellano, J.A.

    1989-01-20

    Rockwell International requested an analysis of the existing plant site water supply distribution system at Rocky Flats, Colorado, to determine its adequacy. On September 26--29, 1988, Hughes Associates, Inc., Fire Protection Engineers, accompanied by Rocky Flats Fire Department engineers and suppression personnel, conducted water flow tests at the Rocky Flats plant site. Thirty-seven flows from various points throughout the plant site were taken on the existing domestic supply/fire main installation to assure comprehensive and thorough representation of the Rocky Flats water distribution system capability. The analysis was completed in four phases which are described, together with a summary of general conclusions and recommendations.

  20. Energy Efficient Transmissions in MIMO Cognitive Radio Networks

    E-Print Network [OSTI]

    Huang, Jianwei

    Energy Efficient Transmissions in MIMO Cognitive Radio Networks Liqun Fu The Institute of Network@ie.cuhk.edu.hk Abstract--In this paper, we consider energy efficient transmis- sions for MIMO cognitive radio networks on the traffic load of the secondary system. Index Terms--Cognitive radio networks, MIMO, Energy- efficiency. I