Sample records for network node manager

  1. Intelligent Management of Misbehaving Nodes In Wireless Sensor Networks

    E-Print Network [OSTI]

    Gesbert, David

    Intelligent Management of Misbehaving Nodes In Wireless Sensor Networks Using Blackhole@eurecom.fr Abstract--Misbehaving nodes in wireless sensor networks and ad hoc networks often disrupt the operation delivery and erroneous data outputs for wireless sensor networks. Existing literatures have addressed

  2. Efficient Energy Management Policies for Networks with Energy Harvesting Sensor Nodes

    E-Print Network [OSTI]

    Sharma, Vinod

    Efficient Energy Management Policies for Networks with Energy Harvesting Sensor Nodes Vinod Sharma at that time at the node. For such networks we develop efficient energy management policies. First for the largest possible data rate. Next we obtain energy management policies which minimize the mean delay

  3. U-229: HP Network Node Manager i Input Validation Flaw Permits Cross-Site Scripting Attacks

    Broader source: Energy.gov [DOE]

    Potential security vulnerabilities have been identified with HP Network Node Manager i (NNMi) for HP-UX, Linux, Solaris, and Windows. The vulnerabilities could be remotely exploited resulting in cross site scripting (XSS).

  4. U-204: HP Network Node Manager i Input Validation Hole Permits Cross-Site Scripting Attacks

    Broader source: Energy.gov [DOE]

    Potential security vulnerabilities have been identified with HP Network Node Manager I (NNMi) for HP-UX, Linux, Solaris, and Windows. The vulnerabilities could be remotely exploited resulting in cross site scripting (XSS).

  5. Reconfigureable network node

    DOE Patents [OSTI]

    Vanderveen, Keith B. (Tracy, CA); Talbot, Edward B. (Livermore, CA); Mayer, Laurence E. (Davis, CA)

    2008-04-08T23:59:59.000Z

    Nodes in a network having a plurality of nodes establish communication links with other nodes using available transmission media, as the ability to establish such links becomes available and desirable. The nodes predict when existing communications links will fail, become overloaded or otherwise degrade network effectiveness and act to establish substitute or additional links before the node's ability to communicate with the other nodes on the network is adversely affected. A node stores network topology information and programmed link establishment rules and criteria. The node evaluates characteristics that predict existing links with other nodes becoming unavailable or degraded. The node then determines whether it can form a communication link with a substitute node, in order to maintain connectivity with the network. When changing its communication links, a node broadcasts that information to the network. Other nodes update their stored topology information and consider the updated topology when establishing new communications links for themselves.

  6. 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)

    2008-06-10T23:59:59.000Z

    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.

  7. Network Management Network Management

    E-Print Network [OSTI]

    that pertain to the operation, administration, maintenance, and provisioning of networked systems · Operation deals with keeping the network up (and the service provided by the network) · Administration involvesNetwork Management Pag. 1 Network Management Andrea Bianco Telecommunication Network Group Network

  8. Detecting Phantom Nodes in Wireless Sensor Networks

    E-Print Network [OSTI]

    Kim, Dae-Shik

    Detecting Phantom Nodes in Wireless Sensor Networks Joengmin Hwang, Tian He and Yongdae Kim With thousands of tiny devices, Wireless Sensor Networks (WSNs) can support ubiquitous surveillance with a very number of phantom nodes. Key words: Sensor networks, localization, secure localization, location

  9. Design under Constraints of Availability and Energy for Sensor Node in Wireless Sensor Network

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Design under Constraints of Availability and Energy for Sensor Node in Wireless Sensor Network Van by designers are availability and power/energy management for WSN. This paper presents a design for a wireless sensor node, which provides automated reconfiguration for both availability and energy-efficient use

  10. Node Control System A Cluster Management Tool for

    E-Print Network [OSTI]

    Fedosov, Alexey

    Node Control System A Cluster Management Tool for Teaching and Research Alex Fedosov Keck Cluster returned to the user e.g. PBS (OpenPBS) Our main goal is interactive development Batch system have very .machines file #12;Features (cont.) Node Domains Users may want to have a specific operating system or node

  11. Resource Management for Fading Wireless Channels with Energy Harvesting Nodes

    E-Print Network [OSTI]

    Ulukus, Sennur

    Resource Management for Fading Wireless Channels with Energy Harvesting Nodes Omur Ozel1 , Kaya of these systems is the fact that the nodes can harvest energy throughout the duration in which communication takes place. As such, transmission policies of the nodes need to adapt to these harvested energy arrivals

  12. Optimized Node Selection for Compressive Sleeping Wireless Sensor Networks

    E-Print Network [OSTI]

    Chen, Wei; Wassell, Ian J.

    2015-02-05T23:59:59.000Z

    1Optimized Node Selection for Compressive Sleeping Wireless Sensor Networks Wei Chen, Member, IEEE, and Ian J. Wassell Abstract—In this paper, we propose an active node selection framework for compressive sleeping wireless sensor networks (WSNs... development oftechnologies in sensing, computing and communication has made it possible to employ wireless sensor networks (WSNs) to continuously monitor physical phenomena in a variety of applications, for example air quality monitoring, wildlife tracking...

  13. IEEE 342 Node Low Voltage Networked Test System

    SciTech Connect (OSTI)

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

    2014-07-31T23:59:59.000Z

    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.

  14. ZIGBEE WIRELESS SENSOR NETWORK NODES DEPLOYMENT STRATEGY FOR

    E-Print Network [OSTI]

    ZIGBEE WIRELESS SENSOR NETWORK NODES DEPLOYMENT STRATEGY FOR DIGITAL AGRICULTURAL DATA ACQUISITIONBee-based wireless sensor network for digital agricultural data acquisition is one of the best ways to build the system. In this paper, based on ZigBee wireless sensor network deployment planning principles

  15. Performance of Wireless Sensor Networks Under Random Node Failures

    E-Print Network [OSTI]

    Hagberg, Aric

    Performance of Wireless Sensor Networks Under Random Node Failures Milan Bradonji´c Bell range wireless sensor network applications with sensors distributed in the field using decentralized distribution. RGGs have been a standard tool to model and study wireless ad-hoc and wireless sensor networks [4

  16. Aggregate Node Placements in Sensor Networks Weifa Liang

    E-Print Network [OSTI]

    Liang, Weifa

    help prolong the lifetime of a sensor network substantially. Therefore, energy efficient data gatherAggregate Node Placements in Sensor Networks Weifa Liang DCS ANU Canberra, Australia Guanjun Ma DCS into a region of interest to form a sensor network and building a routing tree for data gathering at the same

  17. Performance of wireless sensor networks under random node failures

    SciTech Connect (OSTI)

    Bradonjic, Milan [Los Alamos National Laboratory; Hagberg, Aric [Los Alamos National Laboratory; Feng, Pan [Los Alamos National Laboratory

    2011-01-28T23:59:59.000Z

    Networks are essential to the function of a modern society and the consequence of damages to a network can be large. Assessing network performance of a damaged network is an important step in network recovery and network design. Connectivity, distance between nodes, and alternative routes are some of the key indicators to network performance. In this paper, random geometric graph (RGG) is used with two types of node failure, uniform failure and localized failure. Since the network performance are multi-facet and assessment can be time constrained, we introduce four measures, which can be computed in polynomial time, to estimate performance of damaged RGG. Simulation experiments are conducted to investigate the deterioration of networks through a period of time. With the empirical results, the performance measures are analyzed and compared to provide understanding of different failure scenarios in a RGG.

  18. Neural node network and model, and method of teaching same

    DOE Patents [OSTI]

    Parlos, Alexander G. (College Station, TX); Atiya, Amir F. (College Station, TX); Fernandez, Benito (Austin, TX); Tsai, Wei K. (Irvine, CA); Chong, Kil T. (College Station, TX)

    1995-01-01T23:59:59.000Z

    The present invention is a fully connected feed forward network that includes at least one hidden layer 16. The hidden layer 16 includes nodes 20 in which the output of the node is fed back to that node as an input with a unit delay produced by a delay device 24 occurring in the feedback path 22 (local feedback). Each node within each layer also receives a delayed output (crosstalk) produced by a delay unit 36 from all the other nodes within the same layer 16. The node performs a transfer function operation based on the inputs from the previous layer and the delayed outputs. The network can be implemented as analog or digital or within a general purpose processor. Two teaching methods can be used: (1) back propagation of weight calculation that includes the local feedback and the crosstalk or (2) more preferably a feed forward gradient decent which immediately follows the output computations and which also includes the local feedback and the crosstalk. Subsequent to the gradient propagation, the weights can be normalized, thereby preventing convergence to a local optimum. Education of the network can be incremental both on and off-line. An educated network is suitable for modeling and controlling dynamic nonlinear systems and time series systems and predicting the outputs as well as hidden states and parameters. The educated network can also be further educated during on-line processing.

  19. Neural node network and model, and method of teaching same

    DOE Patents [OSTI]

    Parlos, A.G.; Atiya, A.F.; Fernandez, B.; Tsai, W.K.; Chong, K.T.

    1995-12-26T23:59:59.000Z

    The present invention is a fully connected feed forward network that includes at least one hidden layer. The hidden layer includes nodes in which the output of the node is fed back to that node as an input with a unit delay produced by a delay device occurring in the feedback path (local feedback). Each node within each layer also receives a delayed output (crosstalk) produced by a delay unit from all the other nodes within the same layer. The node performs a transfer function operation based on the inputs from the previous layer and the delayed outputs. The network can be implemented as analog or digital or within a general purpose processor. Two teaching methods can be used: (1) back propagation of weight calculation that includes the local feedback and the crosstalk or (2) more preferably a feed forward gradient decent which immediately follows the output computations and which also includes the local feedback and the crosstalk. Subsequent to the gradient propagation, the weights can be normalized, thereby preventing convergence to a local optimum. Education of the network can be incremental both on and off-line. An educated network is suitable for modeling and controlling dynamic nonlinear systems and time series systems and predicting the outputs as well as hidden states and parameters. The educated network can also be further educated during on-line processing. 21 figs.

  20. On the performance management of heterogeneous networks using SNMP

    E-Print Network [OSTI]

    Kunapareddy, Padmaja

    1998-01-01T23:59:59.000Z

    Platform, which provides basic plat- form services and developer's environment. HP Network Node Manager is commonly Courtesy-Omnes, A Schlumberger/ Cahle 6 Wireless Company referred to as "HP Open View" which includes the SNMP platform and in addi- tion... CHAPTER Page INTRODUCTION . A B C D Network Management . 1. Network Management Architecture . 2. Network Management Entities Simple Network Management Protocol - SNMP 1. Management Information Base . 2. Operations 3. Message Format 4. Data...

  1. Assessing node risk and vulnerability in epidemics on networks

    E-Print Network [OSTI]

    Rogers, Tim

    2015-01-01T23:59:59.000Z

    Which nodes are most vulnerable to an epidemic spreading through a network, and which carry the highest risk of causing a major outbreak if they are the source of the infection? Here we show how these questions can be answered to good approximation using the cavity method. Several curious properties of node vulnerability and risk are explored: some nodes are more vulnerable than others to weaker infections, yet less vulnerable to stronger ones; a node is always more likely to be caught in an outbreak than it is to start one, except when the disease has a deterministic lifetime; the rank order of node risk depends on the details of the distribution of infectious periods.

  2. Training a 3-Node Neural Network is NP-Complete

    E-Print Network [OSTI]

    Rivest, Ronald L.

    . A good discussion of the theory of NP-completeness, as well as a description of several hundreds of NPTraining a 3-Node Neural Network is NP-Complete Avrim L. Blum and Ronald L. Rivest* MIT Laboratory-propagation algorithm promises just that. In practice, however, the back-propagation algorithm often runs very slowly

  3. Scheduling applications for execution on a plurality of compute nodes of a parallel computer to manage temperature of the nodes during execution

    DOE Patents [OSTI]

    Archer, Charles J; Blocksome, Michael A; Peters, Amanda E; Ratterman, Joseph D; Smith, Brian E

    2012-10-16T23:59:59.000Z

    Methods, apparatus, and products are disclosed for scheduling applications for execution on a plurality of compute nodes of a parallel computer to manage temperature of the plurality of compute nodes during execution that include: identifying one or more applications for execution on the plurality of compute nodes; creating a plurality of physically discontiguous node partitions in dependence upon temperature characteristics for the compute nodes and a physical topology for the compute nodes, each discontiguous node partition specifying a collection of physically adjacent compute nodes; and assigning, for each application, that application to one or more of the discontiguous node partitions for execution on the compute nodes specified by the assigned discontiguous node partitions.

  4. The Network Completion Problem: Inferring Missing Nodes and Edges in Networks

    SciTech Connect (OSTI)

    Kim, M; Leskovec, J

    2011-11-14T23:59:59.000Z

    Network structures, such as social networks, web graphs and networks from systems biology, play important roles in many areas of science and our everyday lives. In order to study the networks one needs to first collect reliable large scale network data. While the social and information networks have become ubiquitous, the challenge of collecting complete network data still persists. Many times the collected network data is incomplete with nodes and edges missing. Commonly, only a part of the network can be observed and we would like to infer the unobserved part of the network. We address this issue by studying the Network Completion Problem: Given a network with missing nodes and edges, can we complete the missing part? We cast the problem in the Expectation Maximization (EM) framework where we use the observed part of the network to fit a model of network structure, and then we estimate the missing part of the network using the model, re-estimate the parameters and so on. We combine the EM with the Kronecker graphs model and design a scalable Metropolized Gibbs sampling approach that allows for the estimation of the model parameters as well as the inference about missing nodes and edges of the network. Experiments on synthetic and several real-world networks show that our approach can effectively recover the network even when about half of the nodes in the network are missing. Our algorithm outperforms not only classical link-prediction approaches but also the state of the art Stochastic block modeling approach. Furthermore, our algorithm easily scales to networks with tens of thousands of nodes.

  5. A Study of Approximate Data Management Techniques for Sensor Networks

    E-Print Network [OSTI]

    Martin, Ralph R.

    the monitoring operation of sensor nodes by efficiently using their limited energy, bandwidth and computation. The network can therefore be treated as a distributed sensor data management system. Sensor networks differA Study of Approximate Data Management Techniques for Sensor Networks Adonis Skordylis, Niki

  6. Malicious Node Detection in Wireless Sensor Networks using Weighted Trust Evaluation

    E-Print Network [OSTI]

    Chen, Yu

    Malicious Node Detection in Wireless Sensor Networks using Weighted Trust Evaluation Idris M Tokyo 169-8555, Japan zhousu@asagi.waseda.jp Keywords: Wireless sensor networks, network security through compromised nodes. However, it is challenging to secure the flat topology networks efficiently

  7. Dual Power Management for Network Connectivity in Wireless Sensor Networks Yanxia Rong

    E-Print Network [OSTI]

    Choi, Hyeong-Ah

    larger than the lower power level that is used to connect the nodes in the neighborhood. Hence, the dualDual Power Management for Network Connectivity in Wireless Sensor Networks Yanxia Rong , Hongsik@vcu.edu, hchoi@gwu.edu Abstract As the energy consumption in wireless sensor nodes is dominated by the radio

  8. Interference management techniques in large-scale wireless networks 

    E-Print Network [OSTI]

    Luo, Yi

    2015-06-29T23:59:59.000Z

    In this thesis, advanced interference management techniques are designed and evaluated for large-scale wireless networks with realistic assumptions, such as signal propagation loss, random node distribution and ...

  9. Congestion management in electricity networks

    E-Print Network [OSTI]

    Holmberg, Pärr; Lazarczyk, Ewa

    2012-04-25T23:59:59.000Z

     comparison of market designs    Another strand of literature compares different pricing strategies for real markets; often the  system  in  place  with  an  optimal  electricity  dispatch  based  on  LMP.  Bernard  and  Guertin  (2002)  simulate  a  three?node  model  of  Hydro...  possibilities are negligible  in most electric power networks, so demand and supply  must be instantly balanced. The consequence is that transmission constraints and how they  are managed often have a large influence on market prices. The European Union’s regulation  1228...

  10. On Cooperation in Energy Efficient Wireless Networks: The Role of Altruistic Nodes

    E-Print Network [OSTI]

    El-Gamal, Hesham

    1 On Cooperation in Energy Efficient Wireless Networks: The Role of Altruistic Nodes Lifeng Lai and Hesham El Gamal {lail,helgamal}@ece.osu.edu Abstract In wireless networks with energy limited nodes, multi-hop forwarding is usually exploited to reduce the network energy consumption. In many practical

  11. Determining a bisection bandwidth for a multi-node data communications network

    DOE Patents [OSTI]

    Faraj, Ahmad A. (Rochester, MN)

    2010-01-26T23:59:59.000Z

    Methods, systems, and products are disclosed for determining a bisection bandwidth for a multi-node data communications network that include: partitioning nodes in the network into a first sub-network and a second sub-network in dependence upon a topology of the network; sending, by each node in the first sub-network to a destination node in the second sub-network, a first message having a predetermined message size; receiving, by each node in the first sub-network from a source node in the second sub-network, a second message; measuring, by each node in the first sub-network, the elapsed communications time between the sending of the first message and the receiving of the second message; selecting the longest elapsed communications time; and calculating the bisection bandwidth for the network in dependence upon the number of the nodes in the first sub-network, the predetermined message size of the first test message, and the longest elapsed communications time.

  12. Node Localisation in Wireless Ad Hoc Networks Jon Arnold, Nigel Bean, Miro Kraetzl, Matthew Roughan

    E-Print Network [OSTI]

    Roughan, Matthew

    Node Localisation in Wireless Ad Hoc Networks Jon Arnold, Nigel Bean, Miro Kraetzl, Matthew Roughan, Australia Email:{nigel.bean,matthew.roughan}@adelaide.edu.au Abstract-- Wireless ad hoc networks often

  13. Lambda network having 2.sup.m-1 nodes in each of m stages with each node coupled to four other nodes for bidirectional routing of data packets between nodes

    DOE Patents [OSTI]

    Napolitano, Jr., Leonard M. (825 El Quanito Dr., Danville, CA 94526)

    1995-01-01T23:59:59.000Z

    The Lambda network is a single stage, packet-switched interprocessor communication network for a distributed memory, parallel processor computer. Its design arises from the desired network characteristics of minimizing mean and maximum packet transfer time, local routing, expandability, deadlock avoidance, and fault tolerance. The network is based on fixed degree nodes and has mean and maximum packet transfer distances where n is the number of processors. The routing method is detailed, as are methods for expandability, deadlock avoidance, and fault tolerance.

  14. Analyzing (Social Media) Networks with NodeXL Marc A. Smith1

    E-Print Network [OSTI]

    Golbeck, Jennifer

    Analyzing (Social Media) Networks with NodeXL Marc A. Smith1 , Ben Shneiderman2 , Natasa Milic with a social media data sample drawn from an enterprise intranet social network. A sequence of Node relevant differences in the patterns of interconnection among employee participants in the social media

  15. An Artificial Hormone System for Self-organization of Networked Nodes

    E-Print Network [OSTI]

    Ungerer, Theo

    An Artificial Hormone System for Self-organization of Networked Nodes Wolfgang Trumler, Tobias) as a general approach to build self-organizing systems based on networked nodes. The Artificial Hormone System an abstract point of view with focus on the mechanisms that were transferred to the Artificial Hormone System

  16. Modeling and Analysis of Energy Harvesting Nodes in Body Sensor Networks

    E-Print Network [OSTI]

    Sikdar, Biplab

    , or that the energy supply is monotonically decreasing with a fixed initial value. Since energy harvesting sensors canModeling and Analysis of Energy Harvesting Nodes in Body Sensor Networks Alireza Seyedi Department@ecse.rpi.edu Abstract--A Markov based unified model for an energy har- vesting node in a body sensor network

  17. Energy Aware Node Selection for Cluster-based Data Accuracy Estimation in Wireless Sensor Networks

    E-Print Network [OSTI]

    Karjee, Jyotirmoy

    2011-01-01T23:59:59.000Z

    The main objective of this paper is to reduce the number of sensor nodes by estimating a trade off between data accuracy and energy consumption for selecting nodes in probabilistic approach in distributed networks. Design Procedure/Approach: Observed data are highly correlated among sensor nodes in the spatial domain due to deployment of high density of sensor nodes. These sensor nodes form non-overlapping distributed clusters due to high data correlation among them. We develop a probabilistic model for each distributed cluster to perform data accuracy and energy consumption model in the network. Finally we find a trade off between data accuracy and energy consumption model to select an optimal number of sensor nodes in each distributed cluster. We also compare the performance for our data accuracy estimation model with information accuracy model for each distributed cluster in the network. Practical Implementation: Measuring temperature in physical environment and measuring moisture content in agricultural f...

  18. Peer to Peer Networks Management Survey

    E-Print Network [OSTI]

    Amad, Mourad; Aïssani, Djamil

    2012-01-01T23:59:59.000Z

    Peer-to-Peer systems are based on the concept of resources localization and mutualisation in dynamic context. In specific environment such as mobile networks, characterized by high variability and dynamicity of network conditions and performances, where nodes can join and leave the network dynamically, resources reliability and availability constitute a critical issue. The resource discovery problem arises in the context of peer to peer (P2P) networks, where at any point of time a peer may be placed at or removed from any location over a general purpose network. Locating a resource or service efficiently is one of the most important issues related to peer-to-peer networks. The objective of a search mechanism is to successfully locate resources while incurring low overhead and low delay. This paper presents a survey on P2P networks management: classification, applications, platforms, simulators and security.

  19. 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)

    2012-05-29T23:59:59.000Z

    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.

  20. angiofollicular lymph node: Topics by E-print Network

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

    ceils with many elastic tissue fibers in the adjacent subendothelial region. The media is formed of transverse Ralph Smith 88 Solving Capture in Switched TwoNode Ethernets...

  1. axillary lymph node: Topics by E-print Network

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

    ceils with many elastic tissue fibers in the adjacent subendothelial region. The media is formed of transverse Ralph Smith 96 Solving Capture in Switched TwoNode Ethernets...

  2. axillary lymph nodes: Topics by E-print Network

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

    ceils with many elastic tissue fibers in the adjacent subendothelial region. The media is formed of transverse Ralph Smith 96 Solving Capture in Switched TwoNode Ethernets...

  3. Power Management for Wireless Sensor Networks Based on Energy Budgets

    E-Print Network [OSTI]

    Turau, Volker

    Power Management for Wireless Sensor Networks Based on Energy Budgets Christian Renner Institute with wireless sensor networks powered by energy-harvesting supplies. We introduce the concept of an energy budget, the amount of energy available to a sensor node for a given period of time. The presented tools

  4. Optimal Node Placement in Underwater Wireless Sensor Networks

    E-Print Network [OSTI]

    Shihada, Basem

    . Autonomous Underwater Vehicles (AUVs) have been used in recent years to monitor and collect data from that cover a sparse area need to be optimally placed to reduce per node energy consumption. As the distance between the nodes increases, more energy is required to maintain a reasonable Signal-to-Noise (SNR) value

  5. Wireless Sensor Networks - Node Localization for Various Industry Problems

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

    Derr, Kurt; Manic, Milos

    2015-01-01T23:59:59.000Z

    Fast, effective monitoring following airborne releases of toxic substances is critical to mitigate risks to threatened population areas. Wireless sensor nodes at fixed predetermined locations may monitor such airborne releases and provide early warnings to the public. A challenging algorithmic problem is determining the locations to place these sensor nodes while meeting several criteria: 1) provide complete coverage of the domain, and 2) create a topology with problem dependent node densities, while 3) minimizing the number of sensor nodes. This manuscript presents a novel approach to determining optimal sensor placement, Advancing Front mEsh generation with Constrained dElaunay Triangulation and Smoothingmore »(AFECETS) that addresses these criteria. A unique aspect of AFECETS is the ability to determine wireless sensor node locations for areas of high interest (hospitals, schools, high population density areas) that require higher density of nodes for monitoring environmental conditions, a feature that is difficult to find in other research work. The AFECETS algorithm was tested on several arbitrary shaped domains. AFECETS simulation results show that the algorithm 1) provides significant reduction in the number of nodes, in some cases over 40%, compared to an advancing front mesh generation algorithm, 2) maintains and improves optimal spacing between nodes, and 3) produces simulation run times suitable for real-time applications.« less

  6. Wireless Sensor Networks - Node Localization for Various Industry Problems

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

    Derr, Kurt; Manic, Milos

    2015-01-01T23:59:59.000Z

    Fast, effective monitoring following airborne releases of toxic substances is critical to mitigate risks to threatened population areas. Wireless sensor nodes at fixed predetermined locations may monitor such airborne releases and provide early warnings to the public. A challenging algorithmic problem is determining the locations to place these sensor nodes while meeting several criteria: 1) provide complete coverage of the domain, and 2) create a topology with problem dependent node densities, while 3) minimizing the number of sensor nodes. This manuscript presents a novel approach to determining optimal sensor placement, Advancing Front mEsh generation with Constrained dElaunay Triangulation and Smoothing (AFECETS) that addresses these criteria. A unique aspect of AFECETS is the ability to determine wireless sensor node locations for areas of high interest (hospitals, schools, high population density areas) that require higher density of nodes for monitoring environmental conditions, a feature that is difficult to find in other research work. The AFECETS algorithm was tested on several arbitrary shaped domains. AFECETS simulation results show that the algorithm 1) provides significant reduction in the number of nodes, in some cases over 40%, compared to an advancing front mesh generation algorithm, 2) maintains and improves optimal spacing between nodes, and 3) produces simulation run times suitable for real-time applications.

  7. Modeling and Analysis of Energy Harvesting Nodes in Wireless Sensor Networks

    E-Print Network [OSTI]

    Sikdar, Biplab

    , the probability of event loss due to energy run out as well as an analytical vulnerability metric, namely average state as well as the remaining energy supply of the node, we provide an analysis of the Loss ProbabilityModeling and Analysis of Energy Harvesting Nodes in Wireless Sensor Networks Alireza Seyedi

  8. 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

  9. On the Effects of Node Density and Duty Cycle on Energy Efficiency in Underwater Networks

    E-Print Network [OSTI]

    Stojanovic, Milica

    networks, with low or high traffic, call for the development of flexible networking solutions. Because in the design of underwater acoustic networks is energy efficiency, since the nodes are of- ten powered in [5], taking into account the relationship between distance, frequency, and transmission power [6

  10. Node-Replacement Policies to Maintain Threshold-Coverage in Wireless Sensor Networks

    E-Print Network [OSTI]

    Vokkarane, Vinod M.

    1 Node-Replacement Policies to Maintain Threshold-Coverage in Wireless Sensor Networks Sachin consider the problem of maintaining a minimum threshold-coverage in a wireless sensor network, while to maintain threshold-coverage in wireless sensor networks. These policies assess the candidature of each

  11. Macroscopic description of complex adaptive networks co-evolving with dynamic node states

    E-Print Network [OSTI]

    Wiedermann, Marc; Heitzig, Jobst; Lucht, Wolfgang; Kurths, Jürgen

    2015-01-01T23:59:59.000Z

    In many real-world complex systems, the time-evolution of the network's structure and the dynamic state of its nodes are closely entangled. Here, we study opinion formation and imitation on an adaptive complex network which is dependent on the individual dynamic state of each node and vice versa to model the co-evolution of renewable resources with the dynamics of harvesting agents on a social network. The adaptive voter model is coupled to a set of identical logistic growth models and we show that in such systems, the rate of interactions between nodes as well as the adaptive rewiring probability play a crucial role for the sustainability of the system's equilibrium state. We derive a macroscopic description of the system which provides a general framework to model and quantify the influence of single node dynamics on the macroscopic state of the network and is applicable to many fields of study, such as epidemic spreading or social modeling.

  12. Prediction and Management in Energy Harvested Wireless Sensor Nodes

    E-Print Network [OSTI]

    Simunic, Tajana

    : tajana@ucsd.edu Abstract--Solar panels are frequently used in wireless sensor nodes because they can with rechargeable energy storage (e.g. batteries and super capacitors). Many different types of energy harvesting as energy storage units and a solar panel for energy harvesting. Shimmer evaluates the health of a large

  13. 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)

    2014-07-15T23:59:59.000Z

    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.

  14. Cluster synchronization induced by one-node clusters in networks with asymmetric negative couplings

    SciTech Connect (OSTI)

    Zhang, Jianbao [School of Science, Hangzhou Dianzi University, Hangzhou 310018 (China)] [School of Science, Hangzhou Dianzi University, Hangzhou 310018 (China); Ma, Zhongjun, E-mail: mzj1234402@163.com [School of Mathematics and Computing Science, Guilin University of Electronic Technology, Guilin 541004 (China)] [School of Mathematics and Computing Science, Guilin University of Electronic Technology, Guilin 541004 (China); Zhang, Gang [College of Mathematics and Information Science, Hebei Normal University, Shijiazhuang 050024 (China)] [College of Mathematics and Information Science, Hebei Normal University, Shijiazhuang 050024 (China)

    2013-12-15T23:59:59.000Z

    This paper deals with the problem of cluster synchronization in networks with asymmetric negative couplings. By decomposing the coupling matrix into three matrices, and employing Lyapunov function method, sufficient conditions are derived for cluster synchronization. The conditions show that the couplings of multi-node clusters from one-node clusters have beneficial effects on cluster synchronization. Based on the effects of the one-node clusters, an effective and universal control scheme is put forward for the first time. The obtained results may help us better understand the relation between cluster synchronization and cluster structures of the networks. The validity of the control scheme is confirmed through two numerical simulations, in a network with no cluster structure and in a scale-free network.

  15. Comparing Trust Mechanisms for Monitoring Aggregator Nodes in Sensor Networks

    E-Print Network [OSTI]

    Sen, Sandip

    The University of Tulsa Tulsa, OK oly-mistry@utulsa.edu Anil Gürsel The University of Tulsa Tulsa, OK anil-gursel@utulsa.edu Sandip Sen The University of Tulsa Tulsa, OK sandip@utulsa.edu ABSTRACT Sensor nodes are often used

  16. Computer Systems and Network Manager

    E-Print Network [OSTI]

    Computer Systems and Network Manager Fort Collins, Colorado POSITION A Computers Systems activities. RESPONSIBILITIES The successful candidate will perform computer systems and network administration, including computer hardware, systems software, applications software, and all configurations

  17. Providing full point-to-point communications among compute nodes of an operational group in a global combining network of a parallel computer

    DOE Patents [OSTI]

    Archer, Charles J; Faraj, Ahmad A; Inglett, Todd A; Ratterman, Joseph D

    2013-04-16T23:59:59.000Z

    Methods, apparatus, and products are disclosed for providing full point-to-point communications among compute nodes of an operational group in a global combining network of a parallel computer, each compute node connected to each adjacent compute node in the global combining network through a link, that include: receiving a network packet in a compute node, the network packet specifying a destination compute node; selecting, in dependence upon the destination compute node, at least one of the links for the compute node along which to forward the network packet toward the destination compute node; and forwarding the network packet along the selected link to the adjacent compute node connected to the compute node through the selected link.

  18. Connectivity of confined 3D Networks with Anisotropically Radiating Nodes

    E-Print Network [OSTI]

    Goussev, Arseni O.

    increasingly useful in sensor and vehicular net- work applications [2], including, inter alia, smart grid [3 management and dynamic route planning. Commonality in these applications can be found in that the number

  19. Outage Analysis of Multi-node Amplify-and-Forward Relay Networks

    E-Print Network [OSTI]

    Liu, K. J. Ray

    Outage Analysis of Multi-node Amplify-and-Forward Relay Networks Karim G. Seddik, Ahmed K. Sadek, Weifeng Su , and K. J. Ray Liu Department of Electrical and Computer Engineering, and Institute}@eng.umd.edu Department of Electrical Engineering, State University of New York (SUNY) at Buffalo, Buffalo, NY 14260, USA

  20. Energy-efficient Multicasting in Wireless Networks with Fixed Node Transmission Power

    E-Print Network [OSTI]

    Varvarigo, Emmanouel "Manos"

    Energy-efficient Multicasting in Wireless Networks with Fixed Node Transmission Power Christos Computer Technology Institute, Greece manos@ceid.upatras.gr ABSTRACT In this work, we propose an energy-efficient are fixed. Our algorithm is based on the multicost approach and selects an optimal energy-efficient set

  1. Node Placement for Connected Coverage in Sensor Networks Koushik Kar, Suman Banerjee

    E-Print Network [OSTI]

    Boyer, Edmond

    materials at ventilation points. The problem of providing coverage to a given region, or a given set--We address the problem of optimal node placement for ensuring connected coverage in sensor networks. We. Such a deployment mechanism is possible in friendly and accessible environments. We focus on the problem of optimal

  2. Simplifying and speeding the management of intra-node cache coherence

    DOE Patents [OSTI]

    Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton on Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Phillip (Cortlandt Manor, NY); Hoenicke, Dirk (Ossining, NY); Ohmacht, Martin (Yorktown Heights, NY)

    2012-04-17T23:59:59.000Z

    A method and apparatus for managing coherence between two processors of a two processor node of a multi-processor computer system. Generally the present invention relates to a software algorithm that simplifies and significantly speeds the management of cache coherence in a message passing parallel computer, and to hardware apparatus that assists this cache coherence algorithm. The software algorithm uses the opening and closing of put/get windows to coordinate the activated required to achieve cache coherence. The hardware apparatus may be an extension to the hardware address decode, that creates, in the physical memory address space of the node, an area of virtual memory that (a) does not actually exist, and (b) is therefore able to respond instantly to read and write requests from the processing elements.

  3. Cluster Before You Hallucinate: Approximating Node-Capacitated Network Design and Energy Efficient Routing

    E-Print Network [OSTI]

    Treuille, Adrien

    )-approximate with O(log4 n) congestion. This translates back to a O(log4+3 n)-approximation for the multicast energy-minimization)-approximate with O(log12 n) congestion, which translates back to a O(log12+5 n)-approximation for the unicast energy-minimizationCluster Before You Hallucinate: Approximating Node-Capacitated Network Design and Energy Efficient

  4. Energy Efficient Software-Based Self-Test for Wireless Sensor Network Nodes Rong Zhang, Zeljko Zilic Katarzyna Radecka

    E-Print Network [OSTI]

    Zilic, Zeljko

    programming. The increasingly essential FLASH memory is tested by a March-type algorithm implemented in energyEnergy Efficient Software-Based Self-Test for Wireless Sensor Network Nodes Rong Zhang, Zeljko@ece.concordia.ca Abstract We consider self-testing of complete wireless nodes in the field through a low-energy software

  5. Special Issue "Underwater Sensor Nodes and Underwater Sensor Networks" A special issue of Sensors (ISSN 1424-8220)

    E-Print Network [OSTI]

    Chen, Min

    aquatic environments. Marine surveillance, pollution detection and monitoring, and oceanographic data (salinity, conductivity, turbidity, pH, oxygen, temperature, depth, etc.) - Sediments and pollution sensor nodes - Acoustic sensors - Underwater sensor network architectures - Wired and wireless protocols

  6. Energy Management in Wireless Sensor Network Operations 

    E-Print Network [OSTI]

    Mohapatra, Arupa Kumar

    2013-07-26T23:59:59.000Z

    problem (Case I), we consider minimizing energy and node replacement costs in underwater wireless sensor networks for seismic monitoring application. In this case, we introduce mixed-integer programming (MIP) formulations based on a combined routing...

  7. Energy Aware Self-Organizing Density Management in Wireless Sensor Networks

    E-Print Network [OSTI]

    Merrer, Erwan Le; Kermarrec, Anne-Marie; Viana, Aline; Bertier, Marin

    2008-01-01T23:59:59.000Z

    Energy consumption is the most important factor that determines sensor node lifetime. The optimization of wireless sensor network lifetime targets not only the reduction of energy consumption of a single sensor node but also the extension of the entire network lifetime. We propose a simple and adaptive energy-conserving topology management scheme, called SAND (Self-Organizing Active Node Density). SAND is fully decentralized and relies on a distributed probing approach and on the redundancy resolution of sensors for energy optimizations, while preserving the data forwarding and sensing capabilities of the network. We present the SAND's algorithm, its analysis of convergence, and simulation results. Simulation results show that, though slightly increasing path lengths from sensor to sink nodes, the proposed scheme improves significantly the network lifetime for different neighborhood densities degrees, while preserving both sensing and routing fidelity.

  8. Abstract--We propose RACE, a report-based payment scheme for multihop wireless networks to stimulate node cooperation,

    E-Print Network [OSTI]

    Shen, Xuemin "Sherman"

    in one area (residential neighborhood, university campus, etc) having different wireless-enabled devices re- sources, such as battery energy, CPU cycles, and available network bandwidth, to relay others of the cooperative nodes to relay their packets, which degrades the network connectivity and fairness. The fairness

  9. REFERENCES 23 [15] Wassim Matragi, Chatschik Bisdikian, and Khosrow Sohraby. Jitter Calculus in ATM networks: Single Node

    E-Print Network [OSTI]

    Keshav, Srinivasan

    Bisdikian, and Khosrow Sohraby. Jitter Calculus in ATM networks: Multiple Node Case. In IEEE INFOCOM '94 Chandra Verma. Guaranteed Performance Communication in High Speed Networks. PhD thesis, Uni­ versity considerably smaller error probabilities, e.g. 10 \\Gamma6 . In order to do experimental work with loss

  10. V-036: EMC Smarts Network Configuration Manager Database Authenticatio...

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

    36: EMC Smarts Network Configuration Manager Database Authentication Bypass Vulnerability V-036: EMC Smarts Network Configuration Manager Database Authentication Bypass...

  11. Information-based self-organization of sensor nodes of a sensor network

    DOE Patents [OSTI]

    Ko, Teresa H. (Castro Valley, CA); Berry, Nina M. (Tracy, CA)

    2011-09-20T23:59:59.000Z

    A sensor node detects a plurality of information-based events. The sensor node determines whether at least one other sensor node is an information neighbor of the sensor node based on at least a portion of the plurality of information-based events. The information neighbor has an overlapping field of view with the sensor node. The sensor node sends at least one communication to the at least one other sensor node that is an information neighbor of the sensor node in response to at least one information-based event of the plurality of information-based events.

  12. MODERN AGRICULTURAL DIGITAL MANAGEMENT NETWORK INFORMATION

    E-Print Network [OSTI]

    MODERN AGRICULTURAL DIGITAL MANAGEMENT NETWORK INFORMATION SYSTEM OF HEILONGJIANG RECLAMATION AREA@126.com Abstract: To meet the need of agriculture management modernization of Heilongjiang reclamation area, further boost large-scale integration level of modern agriculture production and boost management

  13. A Robust and Flexible Design for GCEP Unattended Online Enrichment Monitoring: An OLEM Collection Node Network

    SciTech Connect (OSTI)

    Younkin, James R [ORNL] [ORNL; March-Leuba, Jose A [ORNL] [ORNL; Garner, James R [ORNL] [ORNL

    2013-01-01T23:59:59.000Z

    Oak Ridge National Laoratory (ORNL) has engineered an on-line enrichment monitor (OLEM) to continuously measure U-235 emissions from the UF6 gas flowing through a unit header pipe of a gas centrifuge enrichment plant (GCEP) as a component of the International Atomic Energy Agency s (IAEA) new generation of technology to support enrichment plant safeguards1. In contrast to other enrichment monitoring approaches, OLEM calibrates and corrects for the pressure and temperature dependent UF6 gas-density without external radiation sources by using the inherent unit header pipe pressure dynamics and combining U-235 gamma-ray spectrometery using a shielded NaI detector with gas pressure and temperature data near the spectrum measurement point to obtain the enrichment of the gas as a function of time. From a safeguards perspective, OLEM can provide early detection of a GCEP being misused for production of highly enriched uranium, but would not detect directly the isolation and use of a cascade within the production unit to produce HEU. OLEM may also reduce the number of samples collected for destructive assay and, if coupled with load cell monitoring, could support isotope mass balance verification and unattended cylinder verification. The earlier paper presented OLEM as one component along with shared load cells and unattended cylinder verification, in the IAEA emering toolbox for unattended instruments at GCEPs1 and described the OLEM concept and how previous modeling studies and field measurements helped confirm the viability of a passive on-line enrichment monitor for meeting IAEA objectives and to support the development of performance targets. Phase I of the United States Support Program (USSP) OLEM project completed a preliminary hardware, software and communications design; phase II will build and test field prototypes in controlled laboratory settings and then at an operational facility. That paper also discussed many of the OLEM collection node commercial off the shelf (COTS) components and summarized the OLEM collection node data security provisions. This paper will discuss a secure and redundant network of OLEM collection nodes, auxiliary detection units and supporting junction boxes distributed throughout a facility for monitoring enrichment on product, feed and tails unit header pipes; the purpose and capability of the built-in Electronic Optical Sealing System (EOSS) network gateway; and a network approach for obtaining reliable and authenticated pressure measurements.

  14. Raj JainThe Ohio State University Network ManagementNetwork Management

    E-Print Network [OSTI]

    Jain, Raj

    Raj JainThe Ohio State University 1 Network ManagementNetwork Management (SNMP)(SNMP) Raj Jain The Ohio State University Columbus, OH 43210 Jain@CIS.Ohio-State.Edu http://www.cis.ohio-state.edu/~jain/ #12;Raj JainThe Ohio State University 2 q Network Management q SNMP q Management information base (MIB

  15. Nodes self-deployment for coverage maximization in mobile robot networks using an evolving neural network

    E-Print Network [OSTI]

    Boyer, Edmond

    such as energy consumption, throughput, delay, coverage, etc. Also many schemes have been proposed in order. In fact, it is sufficient to consider a different input for the neural network to aim to a different monitoring and smart agriculture [1]. One of the fundamental issue in such a network is coverage. It is used

  16. Power Management in Wireless Networks Kevin Klues

    E-Print Network [OSTI]

    Jain, Raj

    Power Management in Wireless Networks Kevin Klues Abstract This paper presents a survey on the various power saving techniques used in wireless networking today. The work presented covers topics at each layer of a wireless networking protocol stack. The types of wireless networks considered include

  17. Truthful resource management in wireless ad hoc networks

    E-Print Network [OSTI]

    Cai, Jianfeng

    2005-11-01T23:59:59.000Z

    In wireless mobile ad hoc networks (MANETs), cooperation cannot be an im- plicit assumption anymore. Each profit-oriented network node has the intention to be selfish due to limited resource possession. In this dissertation, we investigate...

  18. DataSteward: Using Dedicated Compute Nodes for Scalable Data Management on Public Clouds

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    degree of reliability while remaining non-intrusive through the use of dedicated compute nodes. Data intrusive and subject to failures that can stop the host node and degrade the application performance the aggregation of the local storage can become rather intrusive and impact on the application's perceived

  19. Ecosystem-Based Management Tools Network Webinar: Community-Based...

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

    Ecosystem-Based Management Tools Network Webinar: Community-Based Sea Level Rise Projections Ecosystem-Based Management Tools Network Webinar: Community-Based Sea Level Rise...

  20. V-120: EMC Smarts Network Configuration Manager Java RMI Access...

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

    0: EMC Smarts Network Configuration Manager Java RMI Access Control Flaw Lets Remote Users Gain Full Control V-120: EMC Smarts Network Configuration Manager Java RMI Access Control...

  1. A Generic WebBased Network Management Application

    E-Print Network [OSTI]

    Afek, Yehuda

    of network manage­ ment applications that eliminates most of the tedious work, and reduces development costsA Generic Web­Based Network Management Application Yehuda Afek \\Lambda Yoram Cohen y Computer to network management is introduced. In traditional network management each management application

  2. A Biologically Inspired Networking Model for Wireless Sensor Networks 

    E-Print Network [OSTI]

    Charalambous, Charalambos

    2011-02-22T23:59:59.000Z

    in sensor nodes demand energy-aware network control. In this thesis, we propose an energy- efficient topology management model inspired by biological inter-cellular signaling schemes. The model allows sensor nodes to cluster around imminent targets in a...

  3. Embedding global barrier and collective in torus network with each node combining input from receivers according to class map for output to senders

    DOE Patents [OSTI]

    Chen, Dong; Coteus, Paul W; Eisley, Noel A; Gara, Alan; Heidelberger, Philip; Senger, Robert M; Salapura, Valentina; Steinmacher-Burow, Burkhard; Sugawara, Yutaka; Takken, Todd E

    2013-08-27T23:59:59.000Z

    Embodiments of the invention provide a method, system and computer program product for embedding a global barrier and global interrupt network in a parallel computer system organized as a torus network. The computer system includes a multitude of nodes. In one embodiment, the method comprises taking inputs from a set of receivers of the nodes, dividing the inputs from the receivers into a plurality of classes, combining the inputs of each of the classes to obtain a result, and sending said result to a set of senders of the nodes. Embodiments of the invention provide a method, system and computer program product for embedding a collective network in a parallel computer system organized as a torus network. In one embodiment, the method comprises adding to a torus network a central collective logic to route messages among at least a group of nodes in a tree structure.

  4. Traffic Management and Net Neutrality in Wireless Networks

    E-Print Network [OSTI]

    Jordan, Scott

    2011-01-01T23:59:59.000Z

    and resource allocation in wireless multimedia networks.between wired and wireless networks, and hence on potentialManagement for Wireless Networks. Artech House Publishers,

  5. A publish-subscribe implementation of network management

    E-Print Network [OSTI]

    Simosa, Jorge D. (Jorge David)

    2013-01-01T23:59:59.000Z

    As modern networks become highly integrated, heterogeneous, and experience exponential growth, the task of network management becomes increasingly unmanageable for network administrators and designers. The Knowledge Plane ...

  6. A Publish-Subscribe Implementation of Network Management

    E-Print Network [OSTI]

    Simosa, Jorge D.

    2013-06-04T23:59:59.000Z

    As modern networks become highly integrated, heterogeneous, and experience exponential growth, the task of network management becomes increasingly unmanageable for network administrators and designers. The Knowledge Plane ...

  7. Truthful resource management in wireless ad hoc networks 

    E-Print Network [OSTI]

    Cai, Jianfeng

    2005-11-01T23:59:59.000Z

    for the public afiairs. This is reasonable because the network-wide energy saving is beneflcial for each node. Then, Pfvj = ^Pvi;vk + ^Pvk;vi+1 (3.1) vj is the winner of an auction and vk is the node of the second best bid. . After a redirection ends, another.... As an overhearing node vj competes to be the redirector within a hop, it needs to report to upstream node, vi, the minimum power Pvi;vj and listen to the downstream node, vi+1, to get the minimum power Pvj;vi+1. Since the payofi for a redirector is equal...

  8. Efficient Strategies for Collecting Data from Wireless Sensor Network Nodes using Mobile

    E-Print Network [OSTI]

    Isler, Ibrahim Volkan

    solutions to the following problems. (i) From the static node's perspective: given the stochastic nature the robot's perspective: given the stochastic nature of the wireless link quality, what is an energy nodes also act as relays. In certain applications, the underlying environment is very large and sam

  9. Multiple node remote messaging

    DOE Patents [OSTI]

    Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton on Hudson, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Ohmacht, Martin (Yorktown Heights, NY); Salapura, Valentina (Chappaqua, NY); Steinmacher-Burow, Burkhard (Esslingen, DE); Vranas, Pavlos (Danville, CA)

    2010-08-31T23:59:59.000Z

    A method for passing remote messages in a parallel computer system formed as a network of interconnected compute nodes includes that a first compute node (A) sends a single remote message to a remote second compute node (B) in order to control the remote second compute node (B) to send at least one remote message. The method includes various steps including controlling a DMA engine at first compute node (A) to prepare the single remote message to include a first message descriptor and at least one remote message descriptor for controlling the remote second compute node (B) to send at least one remote message, including putting the first message descriptor into an injection FIFO at the first compute node (A) and sending the single remote message and the at least one remote message descriptor to the second compute node (B).

  10. Topology management protocols in ad hoc wireless sensor networks

    E-Print Network [OSTI]

    Kim, Hogil

    2009-05-15T23:59:59.000Z

    A wireless sensor network (WSN) is comprised of a few hundred or thousand au-tonomous sensor nodes spatially distributed over a particular region. Each sensornode is equipped with a wireless communication device, a small microprocessor, anda battery...

  11. Document management guidelines for distributed project networks

    E-Print Network [OSTI]

    Hameri, A P; Høimyr, Nils-Joar

    1999-01-01T23:59:59.000Z

    This paper provides the project engineer with guidelines or a checklist on tasks that must be considered, defined and documented before the project can successfully implement a document management system in geographically distributed project environment. Topics ranging from configuration management, approval process, document types, user administration and document naming are covered. The underlying cases of the paper are that of CERN (European Laboratory for Particle Physics) and its latest accelerator project, together with the Nordisk Industrifond -funded Connecting Distributed Competencies (NI#: 98082) project, with a focus on distributed shipbuilding processes. Keywords: distributed project management, product data management, networking, document management, virtual workspaces

  12. Scalable Node Monitoring

    SciTech Connect (OSTI)

    Drotar, Alexander P. [Los Alamos National Laboratory; Quinn, Erin E. [Los Alamos National Laboratory; Sutherland, Landon D. [Los Alamos National Laboratory

    2012-07-30T23:59:59.000Z

    Project description is: (1) Build a high performance computer; and (2) Create a tool to monitor node applications in Component Based Tool Framework (CBTF) using code from Lightweight Data Metric Service (LDMS). The importance of this project is that: (1) there is a need a scalable, parallel tool to monitor nodes on clusters; and (2) New LDMS plugins need to be able to be easily added to tool. CBTF stands for Component Based Tool Framework. It's scalable and adjusts to different topologies automatically. It uses MRNet (Multicast/Reduction Network) mechanism for information transport. CBTF is flexible and general enough to be used for any tool that needs to do a task on many nodes. Its components are reusable and 'EASILY' added to a new tool. There are three levels of CBTF: (1) frontend node - interacts with users; (2) filter nodes - filters or concatenates information from backend nodes; and (3) backend nodes - where the actual work of the tool is done. LDMS stands for lightweight data metric servies. It's a tool used for monitoring nodes. Ltool is the name of the tool we derived from LDMS. It's dynamically linked and includes the following components: Vmstat, Meminfo, Procinterrupts and more. It works by: Ltool command is run on the frontend node; Ltool collects information from the backend nodes; backend nodes send information to the filter nodes; and filter nodes concatenate information and send to a database on the front end node. Ltool is a useful tool when it comes to monitoring nodes on a cluster because the overhead involved with running the tool is not particularly high and it will automatically scale to any size cluster.

  13. Timing Synchronization at the Relay Node in Physical Layer Network Coding

    E-Print Network [OSTI]

    Basireddy, Ashish

    2012-07-16T23:59:59.000Z

    at the relay node are computed based on the propagation delays in the transmitted signals. However, due to the random attenuation of signals in a fading channel, the near far problem is inherent in this situation. Hence, we aim to design near far resistant...

  14. Power Management Mechanism Exploiting Network and Video Information over Wireless

    E-Print Network [OSTI]

    Bouras, Christos

    Power Management Mechanism Exploiting Network and Video Information over Wireless Links Christos information from higher network layers may be utilized for more efficient power management in wireless- tune transmission power according to information received from the transport (feedback reports from

  15. Power Management Mechanism Exploiting Network and Video Information over Wireless

    E-Print Network [OSTI]

    Bouras, Christos

    Power Management Mechanism Exploiting Network and Video Information over Wireless Links Christos- layer information from higher network layers may be utilized for more efficient power management that fine- tune transmission power according to information received from the transport (feedback reports

  16. A New Management Method for Wireless Sensor Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A New Management Method for Wireless Sensor Networks Aur´elien JACQUOT, Jean-Pierre CHANET, Kun.monier@anelis.isima.fr Abstract--The Wireless Sensor Networks (WSN) with their constant evolution, need new management methods, environmental data collection etc. In order to manage a large scale WSN, several Wireless sensor network

  17. Everything is on the Move: The "Mamluk Empire" as a Node in (Trans-)Regional Networks

    E-Print Network [OSTI]

    Kersting, Kristian

    -by-side and at the same time. In our opinion, these networks constitute to a great extent the core of the so-called Mamluk,linkagesandmovementsofasomewhat globalized region. It investigates the production and transformation of socio-cultural, economic, political and religious linkages and networks, focusing on the movements, transport and transfers of human beings

  18. 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

  19. Localized Bridging Centrality for Distributed Network Analysis

    E-Print Network [OSTI]

    Kotz, David

    network administrators identify critical nodes that are important for the robustness of the network administrator (sysadmin) manage a wireless mesh network or would allow an automated management system understand a system administrator to manage a mesh network in a more effective manner. While the system administrator

  20. A protocol for the moderation of non-cooperative nodes in wireless local area networks

    E-Print Network [OSTI]

    ´opez and Fernando Paganini Universidad ORT Uruguay Abstract-- MAC protocols for wireless networks such as 802 Cuareim 1451, Montevideo, Uruguay. Email: {lopez ma,paganini}@ort.edu.uy. This work was supported by PDT-Uruguay

  1. Relay node placement in large scale wireless sensor networks Jian Tang*, Bin Hao, Arunabha Sen

    E-Print Network [OSTI]

    Tang, Jian "Neil"

    efficient design is needed for prolonging network lifetime. Computer Communications 29 (2006) 490­501 www for a fairly short period of time if operated at high transmission power levels. As a consequence, energy

  2. Verification of Network Management System Configurations David L. Cohrs

    E-Print Network [OSTI]

    Miller, Barton P.

    , with the use of simple, ad hoc tools. However in a large network, managing the net- work management system the amount of sharing and coordination possible in configuring the net- work management system. EachVerification of Network Management System Configurations David L. Cohrs (608) 262-6617 dave

  3. Power-Efficient Adaptable Wireless Sensor Networks , David Evans2

    E-Print Network [OSTI]

    Evans, David

    with the unpredictable network topologies that result from sensor node scatters and to manage resources (energy the flexibility necessary for the adaptations required of wireless sensor networks without the penalties network operation. · Nodes often fail during network operation, due to depleted energy, destruction

  4. On Relay Nodes Deployment for Distributed Detection in Wireless Sensor Networks

    E-Print Network [OSTI]

    Liu, K. J. Ray

    Engineering, Alexandria University, Alexandria 21544, Egypt. and Institute for Systems Research kseddik considered the use of relaying to improve the energy-efficiency of the sensor network. The work in [8] also proposed a consensus protocol and analyzed its energy consumption if cooperation is present to improve

  5. An Architectural Approach for Integrated Network and Systems Management

    E-Print Network [OSTI]

    Boutaba, Raouf

    An Architectural Approach for Integrated Network and Systems Management Raouf Boutaba 1 and Simon. The constant growth in quantity and quality of networked systems and the thereby arising problems concerning introduce an architecture for the integrated management of all resources in a networked system, i

  6. Policy 130 ver 1 Title: Management of the Wireless Network

    E-Print Network [OSTI]

    Karczmarek, Joanna

    Policy 130 ver 1 Title: Management of the Wireless Network Cover - Heading Information Table Page-President, Academic and Provost Title: Management of the Wireless Network Preamble - Background & Purposes The Problem functions and duties. The UBC wireless network, provided by UBC IT, is part of UBC's telecommunications

  7. On-Demand Node Reclamation and Replacement for Guaranteed Area Coverage in Long-lived Sensor Networks

    E-Print Network [OSTI]

    Zhang, Wensheng

    of energy that a solar cell can harvest is proportional to its surface area, but it is infeasible to equip a tiny sensor node with a large-size solar cell. The amount of available solar energy also depends sensor nodes to take over sensor nodes running out of energy. However, this approach is costly because

  8. On the Connectivity of 2-D Random Networks with Anisotropically Radiating Nodes

    E-Print Network [OSTI]

    Dettmann, Carl

    in many infrastructural and ad hoc applications. These include emerging energy and utility management sce that directive transmission can improve connectivity when the path loss exponent is low, and impair connectivity-mail: justin@toshiba-trel.com). He is also with the Department of Electrical and Electronic Engineering

  9. Managing Network Resources in Condor Jim Basney and Miron Livny

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    usage in Condor. By managing network resources, these mechanisms provide administrative control over administrative network policies and to ensure that applications receive sufficient network capac- ity to compute provide statistics to the Condor administrator about how Condor ap- plications are using the network

  10. Managing Network Resources in Condor Jim Basney and Miron Livny

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    usage in Condor. By managing network resources, these mechanisms provide administrative control over administrative network policies and to ensure that applications receive sufficient network capac­ ity to compute provide statistics to the Condor administrator about how Condor ap­ plications are using the network

  11. Energy-Efficient Management of UMTS Access Networks

    E-Print Network [OSTI]

    Energy-Efficient Management of UMTS Access Networks Luca Chiaraviglio, Delia Ciullo, Michela Meo by the telecommunication sector in Italy in the next ten years, the main culprit being customer premises networking

  12. Probabilistic Power Management for Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Li, Baochun

    mode to conserve energy, if they do not participate as sources or destinations of active connections of the local neighborhood within its range. Connectivity is still maintained due to the natural routing networks. Recent work has shown that, by appropri- ately powering off nodes, energy may be significantly

  13. Network Management: State of the Art Raouf Boutaba and Jin Xiao

    E-Print Network [OSTI]

    Boutaba, Raouf

    : to provide network with high quality of service, minimize network downtime. Network management systems should network management as all measures ensuring the effective and efficient operations of a system within its services. · Simplify network management complexity: it is the task of network management systems

  14. Solar Energy Collection and Management for Networked Infomechanical Systems (NIMS)

    E-Print Network [OSTI]

    2003-01-01T23:59:59.000Z

    Networked Sensing Solar Energy Collection and Management forProposed Solution: Solar Energy Harvesting Why is Solarbeing recharged • Solar energy harvesting and storage allow

  15. An Open and Integrated Management Platform for Wireless Sensor Networks

    E-Print Network [OSTI]

    Varvarigo, Emmanouel "Manos"

    such as heterogeneity, limited bandwidth and energy constraints, WSN management and monitoring architectures need to and management platform, and OpenRSM, an open source integrated remote systems and network management platform. The proposed system architecture can support several levels of integration (infrastructure management

  16. Using Reinforcement Learning for Proactive Network Fault Management

    E-Print Network [OSTI]

    Shayman, Mark A.

    fault management demands intelligent man­ agement actions be taken by central manager or remote agents.g., alarms) which appear sequentially. For example, on the manager's side, polling devices randomly (orUsing Reinforcement Learning for Proactive Network Fault Management Qiming He, Mark A. Shayman

  17. Management of Network and Energy Resources in Cognitive and Self-Organizing Wireless Networks

    E-Print Network [OSTI]

    Kouroupetroglou, Georgios

    Management of Network and Energy Resources in Cognitive and Self-Organizing Wireless Networks of different devices. We propose a novel approach for energy saving and resource management in a wire- less Manager (CNM), where energy saving as well as Coverage and Capacity Optimization (CCO) algorithms

  18. 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

  19. A Control Approach to Bandwidth Management in Networked Control Systems

    E-Print Network [OSTI]

    Brandt, Scott A.

    A Control Approach to Bandwidth Management in Networked Control Systems Manel Velasco, Josep M management in networked control systems that allows control loops to consume band- width according bandwidth. I. INTRODUCTION Modern embedded systems are expected to provide more functionality and better

  20. Social Network Analysis Plugin (SNAP) for Mesh Networks

    E-Print Network [OSTI]

    Kotz, David

    networks, called Mesh-Mon, that can help a team of system administrators (sysadmins) manage a wireless. In a wireless mesh network context, a system administrator should pay attention to "bridging nodes" sinceSocial Network Analysis Plugin (SNAP) for Mesh Networks Soumendra Nanda BAE Systems Burlington, MA

  1. Towards All-IP Wireless Networks: Architectures and Resource Management

    E-Print Network [OSTI]

    Boutaba, Raouf

    Towards All-IP Wireless Networks: Architectures and Resource Management Mechanism Majid Ghaderi-IP network integrating different wireless technologies using IP and its associated service models. The first to facilitate the integration of wireless LAN and 3G cellular networks towards a uniform architecture for all

  2. Managing Wireless Sensor Networks with Supply Chain Strategy

    E-Print Network [OSTI]

    Latchman, Haniph A.

    Managing Wireless Sensor Networks with Supply Chain Strategy Wei Liu , Yanchao Zhang, Wenjing Lou Email: {liuw@,yczhang@,fang@ece.}ufl.edu Email: wjlou@ece.wpi.edu Abstract-- Wireless sensor networks wireless sensor networks (WSNs) be identified as one of the most important technologies that will change

  3. Defense of Trust Management Vulnerabilities in Distributed Networks

    E-Print Network [OSTI]

    Sun, Yan Lindsay

    Defense of Trust Management Vulnerabilities in Distributed Networks Yan (Lindsay) Sun , Zhu Han into distributed networks, the vulnerabilities in trust establishment methods, and the defense mechanisms. Five networks inherently rely on cooper- ation among distributed entities. However, coopera- tion is fragile

  4. Dynamic Network Energy Management via Proximal Message Passing

    E-Print Network [OSTI]

    Á locational marginal prices at each node in each time period 5 #12;Example Á simple network with 4 system Á load is what it is; generation scheduled to match it Á systems built with large margins for max;Optimal power and price profile time priceloadchargegen 1 1 0 0 0 0 3 3 10 10 10 10 20 20 20 20 30 30 30

  5. Managing Power Consumption in Networks on Chips Tajana Simunic

    E-Print Network [OSTI]

    Simunic, Tajana

    Managing Power Consumption in Networks on Chips Tajana Simunic HP Labs & Stanford University 1501 power consumption for NOCs. Power management problem is formulated using closed-loop control concepts, with the estimator tracking changes in the system parameters and recalculating the new power management policy

  6. Low Power Nanoscale Buffer Management for Network on Chip Routers

    E-Print Network [OSTI]

    Mohanty, Saraju P.

    Low Power Nanoscale Buffer Management for Network on Chip Routers Suman K. Mandal Texas A power dissipation. We present a novel dynamic power management technique for low power NoC router buffers using nano CMOS SRAMS. A feedback controller was designed for block level power management

  7. Open Rigging Through XML: Character Setup Utilizing Metadata and Node Based Editing

    E-Print Network [OSTI]

    Kelly, Logan Scott

    2014-02-19T23:59:59.000Z

    Editor. . . . . . . . . . . . . . . . . . . . 15 5 An example MetaDataManagerNode connected to two MetaRootNodes in Maya. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 6 The drop down menu provided for accessing the Rig... for the node are displayed in the Node Details Panel. . . . . 28 13 A Geometry Node attached to a Rig Node. . . . . . . . . . . . . . . . 29 14 A Global Node attached to a Rig Node. . . . . . . . . . . . . . . . . . 30 15 A Spine Node added to the node graph...

  8. Advanced interference management techniques for future wireless networks 

    E-Print Network [OSTI]

    Razavi, Seyed Morteza

    2014-06-30T23:59:59.000Z

    In this thesis, we design advanced interference management techniques for future wireless networks under the availability of perfect and imperfect channel state information (CSI). We do so by considering a generalized ...

  9. Dynamic Power Management of High Performance Network on Chip

    E-Print Network [OSTI]

    Mandal, Suman Kalyan

    2012-02-14T23:59:59.000Z

    . The addition of intelligent networking on the chip adds to the chip’s power consumption thus making management of communication power an interesting and challenging research problem. While VLSI techniques have evolved over time to enable power reduction...

  10. An Architecture for Managing Virtual Circuit and Virtual Path Services on ATM Networks

    E-Print Network [OSTI]

    Columbia University

    1 An Architecture for Managing Virtual Circuit and Virtual Path Services on ATM Networks Abstract management architecture that provides the services and is instrumented for network management purposes service monitor- ing and control functions. The network management architecture proposes complete managed

  11. U-214: HP Network Node Manager Java JDK / JRE Multiple Vulnerabilities

    Broader source: Energy.gov [DOE]

    Vulnerabilities could be remotely exploited resulting in unauthorized information disclosure, modification, Denial of Service (DoS).

  12. Demo Abstract: A Unified Architecture for Flexible Radio Power Management in Wireless Sensor Networks

    E-Print Network [OSTI]

    Lu, Chenyang

    Demo Abstract: A Unified Architecture for Flexible Radio Power Management in Wireless Sensor Terms Experimentation, Design Keywords Wireless Sensor Networks, Radio Power Management, Architecture, Framework 1 Overview Radio power management is of paramount concern in wireless sensor networks. While

  13. Stix: a goal-oriented distributed management system for large-scale broadband wireless access networks 

    E-Print Network [OSTI]

    Bernardi, Giacomo; Calder, Matt; Fenacci, Damon; Macmillan, Alexander; Marina, Mahesh

    2010-10-25T23:59:59.000Z

    management infrastructure scalable and flexible. Stix is based on the notions of goal-oriented and in-network management. With Stix, administrators graphically specify network management activities as workflows, which are deployed at a distributed set...

  14. Revenue Management for Cognitive Spectrum Underlay Networks: An Interference Elasticity

    E-Print Network [OSTI]

    Huang, Jianwei

    to the large body of work on uplink power control with pricing for CDMA networks (e.g., [5]­[10] and a recent a total received interference power constraint at the primary user's receiver. The transmission power1 Revenue Management for Cognitive Spectrum Underlay Networks: An Interference Elasticity

  15. MANAGING NETWORK ORGANIZATIONS IN THE KNOWLEDGE ECONOMY: LEARNING

    E-Print Network [OSTI]

    Indiana University

    ECONOMY: LEARNING FROM SUCCESS AND FAILURE Hamid R. Ekbia School of Library and Information Science The current economy has brought the network model of organization to the forefront of management theory. INTRODUCTION The information economy seems to favor the network model of organiza- tion. This is what various

  16. Data Collection and Management Solution for Wireless Sensor Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Data Collection and Management Solution for Wireless Sensor Networks G. De Sousa1 , J.-P. Chanet1 Aubière cedex, France Correspondent author: gil.de-sousa@cemagref.fr Abstract Wireless sensors networks on wireless sensors, implementing a hardware component-based concept, that allow them to be combined to form

  17. Energy-efficient Management of Heterogeneous Wireless Sensor Markus Anwander, Gerald Wagenknecht, Torsten Braun

    E-Print Network [OSTI]

    Braun, Torsten

    Energy-efficient Management of Heterogeneous Wireless Sensor Networks Markus Anwander, Gerald) management and code distribution framework. This includes the determination of appropriate sensor node and implementation of a management architecture for WSNs. In a first step several types of sensor nodes and sensor

  18. Node Reclamation and Replacement for Long-lived Sensor Networks Bin Tong, Guiling Wang, Wensheng Zhang, and Chuang Wang

    E-Print Network [OSTI]

    Zhang, Wensheng

    surveillance, road condition monitoring, and so on. Hence, many energy conservation schemes [1] were proposed. In particular, the amount of energy that a solar cell can harvest is proportional to its surface area, but it is infeasible to equip a tiny sensor node with a large-size solar cell. The amount of available solar energy

  19. A Framework for Classification of Traffic Management Practices as Reasonable or Unreasonable

    E-Print Network [OSTI]

    Jordan, Scott

    2010-01-01T23:59:59.000Z

    a frame- work that classi?es a traf?c management practice onrequires work by transit nodes, but the traf?c managementwork appeared in the 2009 IFIP/IEEE International Symposium on Integrated Network Management

  20. From Parchment to the Network: Manuscripts Management and Cataloguing

    E-Print Network [OSTI]

    Alberti, Maria Alberta

    preserve the entire knowledge of ancient western culture from Greek to Latin literature, philosophyFrom Parchment to the Network: Manuscripts Management and Cataloguing Maria A. Alberti related to management, catalogue and description of these documents. In this paper we present some results

  1. Inventory management with dynamic Bayesian network software systems

    E-Print Network [OSTI]

    Barker, Jon

    Inventory management with dynamic Bayesian network software systems Mark Taylor1 and Charles Fox2 1.fox@sheffield.ac.uk Abstract. Inventory management at a single or multiple levels of a supply chain is usually performed-the-shelf graphical software systems. We show how such sys- tems may be deployed to model a simple inventory problem

  2. Scalable fault management architecture for dynamic optical networks : an information-theoretic approach

    E-Print Network [OSTI]

    Wen, Yonggang

    2008-01-01T23:59:59.000Z

    All-optical switching, in place of electronic switching, of high data-rate lightpaths at intermediate nodes is one of the key enabling technologies for economically scalable future data networks. This replacement of ...

  3. Pest Management Science Pest Manag Sci 63:943953 (2007) Ecological network analysis: an

    E-Print Network [OSTI]

    Andras, Peter

    2007-01-01T23:59:59.000Z

    Pest Management Science Pest Manag Sci 63:943­953 (2007) Ecological network analysis-related substances in the soil and groundwater and possibly the emergence of pesticide-resistant pest species. Contemporary agricultural science recognises that abusive use of pesticides cannot lead to sustainable

  4. Synchronizing compute node time bases in a parallel computer

    DOE Patents [OSTI]

    Chen, Dong; Faraj, Daniel A; Gooding, Thomas M; Heidelberger, Philip

    2014-12-30T23:59:59.000Z

    Synchronizing time bases in a parallel computer that includes compute nodes organized for data communications in a tree network, where one compute node is designated as a root, and, for each compute node: calculating data transmission latency from the root to the compute node; configuring a thread as a pulse waiter; initializing a wakeup unit; and performing a local barrier operation; upon each node completing the local barrier operation, entering, by all compute nodes, a global barrier operation; upon all nodes entering the global barrier operation, sending, to all the compute nodes, a pulse signal; and for each compute node upon receiving the pulse signal: waking, by the wakeup unit, the pulse waiter; setting a time base for the compute node equal to the data transmission latency between the root node and the compute node; and exiting the global barrier operation.

  5. Radiation detection and situation management by distributed sensor networks

    SciTech Connect (OSTI)

    Jan, Frigo [Los Alamos National Laboratory; Mielke, Angela [Los Alamos National Laboratory; Cai, D Michael [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    Detection of radioactive materials in an urban environment usually requires large, portal-monitor-style radiation detectors. However, this may not be a practical solution in many transport scenarios. Alternatively, a distributed sensor network (DSN) could complement portal-style detection of radiological materials through the implementation of arrays of low cost, small heterogeneous sensors with the ability to detect the presence of radioactive materials in a moving vehicle over a specific region. In this paper, we report on the use of a heterogeneous, wireless, distributed sensor network for traffic monitoring in a field demonstration. Through wireless communications, the energy spectra from different radiation detectors are combined to improve the detection confidence. In addition, the DSN exploits other sensor technologies and algorithms to provide additional information about the vehicle, such as its speed, location, class (e.g. car, truck), and license plate number. The sensors are in-situ and data is processed in real-time at each node. Relevant information from each node is sent to a base station computer which is used to assess the movement of radioactive materials.

  6. Intelligent Network-Layer Management for Wireless Mesh Networks: Dynamic Tuning of a Reactive Routing Protocol

    E-Print Network [OSTI]

    Kolner, Brian H.

    1 Intelligent Network-Layer Management for Wireless Mesh Networks: Dynamic Tuning of a Reactive Routing Protocol Dan Marconett, Minsoo Lee, Xiaohui Ye and S. J. Ben Yoo Dept. of Electrical and Computer learning to dynamically modify reactive routing protocol parameters in real-time, to better facilitate

  7. Network Management Unit (NMU): A Network Interface Architecture for Job-Level

    E-Print Network [OSTI]

    Lee, Thomas H.

    Network Management Unit (NMU): A Network Interface Architecture for Job-Level Protection Domains and propose job-level protection domains as a new high-level building block for distributed applications. We that it efficiently implements job- level protection domains and argue that this allows programmers to productively

  8. Interference management in wireless cellular networks 

    E-Print Network [OSTI]

    Burchardt, Harald Peter

    2013-07-01T23:59:59.000Z

    In wireless networks, there is an ever-increasing demand for higher system throughputs, along with growing expectation for all users to be available to multimedia and Internet services. This is especially difficult to ...

  9. Voltage Management of Networks with Distributed Generation. 

    E-Print Network [OSTI]

    O'Donnell, James

    2008-01-01T23:59:59.000Z

    At present there is much debate about the impacts and benefits of increasing the amount of generation connected to the low voltage areas of the electricity distribution network. The UK government is under political ...

  10. A Simple Network Management Architecture for Supporting Network Administrator and QoS Requirements

    E-Print Network [OSTI]

    Phonphoem, Anan

    2011-01-01T23:59:59.000Z

    In this paper, a simple network management architecture for supporting both QoS requirements and organization network management policies is purposed. By grouping the traffic flows according to the QoS requirements or certain network management policies, the network resources are effectively controlled. The purposed architecture is easy to deploy; the gateway is the only equipment that needs installation, leaving the rest of the system untouched. The architecture has not significantly degraded the overall system utilization when applying it to the outgoing bound of the gateway. The architecture can also be implemented on the wireless LAN at the access point because the architecture is designed in such the way that it is independent to both the lower and upper protocol layers.

  11. Dynamically Managing the Real-time Fabric of a Wireless Sensor-Actuator Network

    E-Print Network [OSTI]

    Lemmon, Michael

    - water distribution and collection networks - traffic networks power inverter storage Micro-Grid examples of such systems are found in the controlling spatially distributed systems. - electric power grid Transmission success is influenced by multi-access interference (MAI) Pi = node i's transmitted power hij Pi

  12. PDSF Interactive Nodes

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

    Interactive (login) Nodes Interactive (login) Nodes There are 3 interactive nodes at PDSF, pdsf6-8.nersc.gov, that should be accessed via ssh to pdsf.nersc.gov. These are the...

  13. ETTM: A Scalable Fault Tolerant Network Manager Colin Dixon Hardeep Uppal Vjekoslav Brajkovic Dane Brandon

    E-Print Network [OSTI]

    Ratnasamy, Sylvia

    and efficiently managing network resources at a packet granularity. Our aim is to pro- vide network administrators administrator. Our approach leverages the trend to open management interfaces on network switches as well target is enterprise-scale networks with common administrative control over most of the hardware

  14. Gradient Clock Synchronization in Wireless Sensor Networks

    E-Print Network [OSTI]

    Gradient Clock Synchronization in Wireless Sensor Networks Philipp Sommer Computer Engineering- olution. Without doubt, time is a first-class citizen in wireless sensor networks. Without accurate time if the nodes in the wireless sensor network manage to have an adequate agreement of time. Indeed

  15. Joint Energy Management and Resource Allocation in Rechargeable Sensor Networks

    E-Print Network [OSTI]

    Sinha, Prasun

    Joint Energy Management and Resource Allocation in Rechargeable Sensor Networks Ren-Shiou Liu CSE, The Ohio State University Email: rsliu@cse.ohio-state.edu Prasun Sinha CSE, The Ohio State University Email: prasun@cse.ohio-state.edu Can Emre Koksal ECE, The Ohio State University Email: koksal

  16. Social Networking for Emergency Management and Public Safety

    SciTech Connect (OSTI)

    Lesperance, Ann M.; Olson, Jarrod; Godinez, Melanie A.

    2010-08-31T23:59:59.000Z

    On March 10, 2010 the workshop titled Social Networking for Emergency Management and Public Safety was held in Seattle, WA. The objective of this workshop was to showcase ways social media networking technologies can be used to support emergency management and public safety operations. The workshop highlighted the current state of social networking and where this dynamic engagement is heading, demonstrated some of the more commonly used technologies, highlighted case studies on how these tools have been used in a variety of jurisdictions and engaged the private sector on how these tools might serve as a conduit for two way communication between with the public sector to address regional recovery issues and decision making.

  17. A Policy Management System for Hybrid Networks N Vardalachos, J Rubio, A Galis and J Serrat

    E-Print Network [OSTI]

    Haddadi, Hamed

    management architecture devised for management of IP over WDM networks and is part of the work carried outA Policy Management System for Hybrid Networks N Vardalachos, J Rubio, A Galis and J Serrat University College London, Universitat Politècnica de Catalunya Abstract: The management of heterogeneous

  18. Energy savings in wireless ad hoc sensor networks as a result of network synchronisation

    E-Print Network [OSTI]

    Haddadi, Hamed

    Energy savings in wireless ad hoc sensor networks as a result of network synchronisation Antonio of oceanographic monitoring using a collegiate-managed autonomous network of energy-conscious wireless sensors. We-to-node synchronised transmissions in order to reduce overhearing and therefore reduce energy expenses. SSSNP (Self

  19. Open Problems in Network-aware Data Management in Exa-scale Computing and Terabit Networking Era

    SciTech Connect (OSTI)

    Balman, Mehmet; Byna, Surendra

    2011-12-06T23:59:59.000Z

    Accessing and managing large amounts of data is a great challenge in collaborative computing environments where resources and users are geographically distributed. Recent advances in network technology led to next-generation high-performance networks, allowing high-bandwidth connectivity. Efficient use of the network infrastructure is necessary in order to address the increasing data and compute requirements of large-scale applications. We discuss several open problems, evaluate emerging trends, and articulate our perspectives in network-aware data management.

  20. A Framework for Distributed Key Management Schemes in Heterogeneous Wireless Sensor Networks

    E-Print Network [OSTI]

    Hu, Jiankun

    A Framework for Distributed Key Management Schemes in Heterogeneous Wireless Sensor Networks Kejie propose a framework for key management schemes in distributed wireless sensor networks with heterogeneous, the wireless sensor network can achieve higher key connectivity and higher resilience. I. INTRODUCTION Wireless

  1. Self Organising Wireless Sensor Networks as a Land Management Tool in Developing Countries: A Preliminary Survey

    E-Print Network [OSTI]

    Haddadi, Hamed

    Self Organising Wireless Sensor Networks as a Land Management Tool in Developing Countries wireless sensor networks do to help? This overview discusses the environmental and technological challenges management. Self organising wireless sensor networks, if implemented adequately, have the potential to target

  2. Assessment and Event Based Analysis of Dynamic Wireless Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Assessment and Event Based Analysis of Dynamic Wireless Networks Denis Carvin1,2, Guillaume Kremer1 of mobile nodes in networks is significantly changing the way they are managed. Indeed, these wireless-estimation algorithm for wireless mobile networks. We then provide events' collection and distributed mining methods

  3. Abstract--A mobile ad hoc network is a wireless communication network which does not rely on a fixed

    E-Print Network [OSTI]

    Lyu, Michael R.

    hoc networks. We propose a secure public key authentication service based on a trust model nodes in the networks. We perform an overall evaluation of our proposed approach by simulations distributed systems, security in ad hoc networks is based on the use of a key management system

  4. Passive, Streaming Inference of TCP Connection Structure for Network Server Management

    E-Print Network [OSTI]

    Jeffay, Kevin

    Passive, Streaming Inference of TCP Connection Structure for Network Server Management Jeff Terrell of servers in a network based on a real-time analysis of passively measured network traffic. TCP and IP-layer structure of all client/server dialogs ongoing in the network. Next, the representation of these dialogs

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

    E-Print Network [OSTI]

    Lemmon, Michael

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

  6. Application-Aware Resource Management in Wireless and Visual Sensor Networks

    E-Print Network [OSTI]

    Heinzelman, Wendi

    , Serbia from 1994 to 2000, where she earned the Dipl.-Ing. degree in 2000 from the Department factors of the sensor nodes, such as their finite energy supplies and their moderate process- ing of the communication overhead. In order to provide balanced energy consumption in clustered sensor networks, we

  7. The Node Monitoring Component of a Scalable Systems Software Environment

    SciTech Connect (OSTI)

    Samuel James Miller

    2006-08-09T23:59:59.000Z

    This research describes Fountain, a suite of programs used to monitor the resources of a cluster. A cluster is a collection of individual computers that are connected via a high speed communication network. They are traditionally used by users who desire more resources, such as processing power and memory, than any single computer can provide. A common drawback to effectively utilizing such a large-scale system is the management infrastructure, which often does not often scale well as the system grows. Large-scale parallel systems provide new research challenges in the area of systems software, the programs or tools that manage the system from boot-up to running a parallel job. The approach presented in this thesis utilizes a collection of separate components that communicate with each other to achieve a common goal. While systems software comprises a broad array of components, this thesis focuses on the design choices for a node monitoring component. We will describe Fountain, an implementation of the Scalable Systems Software (SSS) node monitor specification. It is targeted at aggregate node monitoring for clusters, focusing on both scalability and fault tolerance as its design goals. It leverages widely used technologies such as XML and HTTP to present an interface to other components in the SSS environment.

  8. Wireless Sensors and Networks for Advanced Energy Management

    SciTech Connect (OSTI)

    Hardy, J.E.

    2005-05-06T23:59:59.000Z

    Numerous national studies and working groups have identified low-cost, very low-power wireless sensors and networks as a critical enabling technology for increasing energy efficiency, reducing waste, and optimizing processes. Research areas for developing such sensor and network platforms include microsensor arrays, ultra-low power electronics and signal conditioning, data/control transceivers, and robust wireless networks. A review of some of the research in the following areas will be discussed: (1) Low-cost, flexible multi-sensor array platforms (CO{sub 2}, NO{sub x}, CO, humidity, NH{sub 3}, O{sub 2}, occupancy, etc.) that enable energy and emission reductions in applications such as buildings and manufacturing; (2) Modeling investments (energy usage and savings to drive capital investment decisions) and estimated uptime improvements through pervasive gathering of equipment and process health data and its effects on energy; (3) Robust, self-configuring wireless sensor networks for energy management; and (4) Quality-of-service for secure and reliable data transmission from widely distributed sensors. Wireless communications is poised to support technical innovations in the industrial community, with widespread use of wireless sensors forecasted to improve manufacturing production and energy efficiency and reduce emissions. Progress being made in wireless system components, as described in this paper, is helping bring these projected improvements to reality.

  9. Network QoS Management in Cyber-Physical Systems

    E-Print Network [OSTI]

    Xia, Feng; Dong, Jinxiang; Sun, Youxian

    2008-01-01T23:59:59.000Z

    Technical advances in ubiquitous sensing, embedded computing, and wireless communication are leading to a new generation of engineered systems called cyber-physical systems (CPS). CPS promises to transform the way we interact with the physical world just as the Internet transformed how we interact with one another. Before this vision becomes a reality, however, a large number of challenges have to be addressed. Network quality of service (QoS) management in this new realm is among those issues that deserve extensive research efforts. It is envisioned that wireless sensor/actuator networks (WSANs) will play an essential role in CPS. This paper examines the main characteristics of WSANs and the requirements of QoS provisioning in the context of cyber-physical computing. Several research topics and challenges are identified. As a sample solution, a feedback scheduling framework is proposed to tackle some of the identified challenges. A simple example is also presented that illustrates the effectiveness of the pr...

  10. Identifying messaging completion in a parallel computer by checking for change in message received and transmitted count at each node

    DOE Patents [OSTI]

    Archer, Charles J. (Rochester, MN); Hardwick, Camesha R. (Fayetteville, NC); McCarthy, Patrick J. (Rochester, MN); Wallenfelt, Brian P. (Eden Prairie, MN)

    2009-06-23T23:59:59.000Z

    Methods, parallel computers, and products are provided for identifying messaging completion on a parallel computer. The parallel computer includes a plurality of compute nodes, the compute nodes coupled for data communications by at least two independent data communications networks including a binary tree data communications network optimal for collective operations that organizes the nodes as a tree and a torus data communications network optimal for point to point operations that organizes the nodes as a torus. Embodiments include reading all counters at each node of the torus data communications network; calculating at each node a current node value in dependence upon the values read from the counters at each node; and determining for all nodes whether the current node value for each node is the same as a previously calculated node value for each node. If the current node is the same as the previously calculated node value for all nodes of the torus data communications network, embodiments include determining that messaging is complete and if the current node is not the same as the previously calculated node value for all nodes of the torus data communications network, embodiments include determining that messaging is currently incomplete.

  11. Method and apparatus for routing data in an inter-nodal communications lattice of a massively parallel computer system by routing through transporter nodes

    DOE Patents [OSTI]

    Archer, Charles Jens (Rochester, MN); Musselman, Roy Glenn (Rochester, MN); Peters, Amanda (Rochester, MN); Pinnow, Kurt Walter (Rochester, MN); Swartz, Brent Allen (Chippewa Falls, WI); Wallenfelt, Brian Paul (Eden Prairie, MN)

    2010-11-16T23:59:59.000Z

    A massively parallel computer system contains an inter-nodal communications network of node-to-node links. An automated routing strategy routes packets through one or more intermediate nodes of the network to reach a destination. Some packets are constrained to be routed through respective designated transporter nodes, the automated routing strategy determining a path from a respective source node to a respective transporter node, and from a respective transporter node to a respective destination node. Preferably, the source node chooses a routing policy from among multiple possible choices, and that policy is followed by all intermediate nodes. The use of transporter nodes allows greater flexibility in routing.

  12. A Retasking Framework For Wireless Sensor Networks

    E-Print Network [OSTI]

    Weigle, Michele

    , built upon Deluge [1], is a wireless network code distribution protocol enabling node group management it affords. Deluge [1] is one of the approaches used to realize this concept. Deluge is a reliable and robust several limitations. First, Deluge is limited only to network-wide dissemination of program binaries

  13. Combining Mobility and Heterogeneous Networking for Emergency Management: a PMIPv6 and HIP-based

    E-Print Network [OSTI]

    Gesbert, David

    management of Proxy Mobile IPv6 (PMIPv6) with macro-mobility management, security, inter-technology handoverCombining Mobility and Heterogeneous Networking for Emergency Management: a PMIPv6 and HIP. General Terms Design, Performance, Security. Keywords Mobility Management, Proxy Mobile IPv6

  14. Building the London Cycle Network Plus (LCN+) Steve Cardno LCN+ Project Manager

    E-Print Network [OSTI]

    Bertini, Robert L.

    Building the London Cycle Network Plus (LCN+) Steve Cardno ­ LCN+ Project Manager The Story So Far #12;Background to LCN+ London Cycling Design Standards (key principles) Project Management of the LCN+ Network Assessment Project Examples Lessons Learned Other Cycling Infrastructure Projects in London Ideas

  15. active adaptive management: Topics by E-print Network

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

    begun to embrace the concept adaptive management as an alternative to traditional natural resource planning and management models. Adaptive management may provide BLM managers ......

  16. adaptive management tool: Topics by E-print Network

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

    management as an alternative to traditional natural resource planning and management models. Adaptive management may provide BLM managers ... Brandenburg, Peter (Peter J.)...

  17. adaptive management department: Topics by E-print Network

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

    begun to embrace the concept adaptive management as an alternative to traditional natural resource planning and management models. Adaptive management may provide BLM managers ......

  18. Stream classification using hierarchical artificial neural networks: A fluvial hazard management tool

    E-Print Network [OSTI]

    Vermont, University of

    Stream classification using hierarchical artificial neural networks: A fluvial hazard management-in-Chief Keywords: Stream classification Artificial neural networks Kohonen self-organizing maps Counterpropagation. In this research, we apply non-parametric, clus- tering and classification artificial neural networks to assimilate

  19. Redefining Social Network Services: A Solution to Personal Information and Knowledge Management

    E-Print Network [OSTI]

    He, Daqing

    Redefining Social Network Services: A Solution to Personal Information and Knowledge Management of human communication abilities as other social software does, social network services (SNS) provide their theoretical foundation from social network theory. However, they are far from working perfectly as reflected

  20. PS'2006 -Photonics in Switching Conference An Intelligent Network Management System with Multi-Tier Distributed

    E-Print Network [OSTI]

    Kolner, Brian H.

    -Tier Distributed Intelligence for Optical Packet-Agile Transport Networks Jinqiang Yang and S.J. Ben Yoo Department introduces multi-tier distributed intelligence into the network management plane in order to address-line traffic engineering over optical packet-switching networks facilitated by the multi-tier distributed

  1. A wireless sensor network (WSN) may run different applications for different

    E-Print Network [OSTI]

    Braun, Torsten

    A wireless sensor network (WSN) may run different applications for different tasks, such as event Wireless Sensor Networks, which sup- ports common management tasks such as visualization, monitoring, (re the communication gateway between these sensor sub-networks, the WSN and the Internet. Wireless mesh nodes perform

  2. SiNode Systems

    Broader source: Energy.gov [DOE]

    SiNode Systems is a battery materials venture developing silicon-graphene anodes for the next generation of lithium-ion batteries. SiNode anodes offer higher battery capacity and faster charging rates, all while being produced via a low cost solution chemistry-based manufacturing process.

  3. Web-Interactive Integration of Regional Weather Networks for Risk Management of Late Blight in Potato Canopies

    E-Print Network [OSTI]

    Douches, David S.

    1 Web-Interactive Integration of Regional Weather Networks for Risk Management of Late Blight Category: Pest Management Web-Interactive Integration of Regional Weather Networks for Risk Management of potato late blight. The system integrates regional automated weather network data, fungicide rates

  4. U-274: HP Network Node Manager I (NNMi) for HP-UX, Linux, Solaris, and Windows, Remote Disclosure of Information

    Broader source: Energy.gov [DOE]

    Vulnerabilities can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.

  5. SelfTuning Wireless Network Power Management MANISH ANAND, EDMUND B. NIGHTINGALE, and JASON FLINN

    E-Print Network [OSTI]

    Flinn, Jason

    ­client applica­ tions. Compared to default 802.11b power management, STPM reduces the total energy usage of an i network power management of­ ten substantially degrades performance and may even increase overall energy usage when used with latency­sensitive applica­ tions. We propose self­tuning power management (STPM

  6. 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

  7. assistance contractor management: Topics by E-print Network

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

    interacted with the equipment operators who Russell, Lynn 12 Student Wellness Care Management Graduate Assistant Hiring Manager: Perris Kent, Care Manager for Student...

  8. automated file management: Topics by E-print Network

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

    OverviewManaged Lanes OverviewManaged Lanes OverviewManaged Lanes Overview 2012 Road Vehicle Automation Workshop2012 Road Vehicle Automation Workshop Engineering Websites...

  9. automated transportation management: Topics by E-print Network

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

    OverviewManaged Lanes OverviewManaged Lanes OverviewManaged Lanes Overview 2012 Road Vehicle Automation Workshop2012 Road Vehicle Automation Workshop Engineering Websites...

  10. accident management guidance: Topics by E-print Network

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

    React to Public Earnings Guidance investigates security analysts' reactions to public management guidance and assesses whether managers management provides public guidance....

  11. accident management summary: Topics by E-print Network

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

    Management of the Acute Radiation Syndrome 2001 flow Feed back Radiation Accident MedicalManagement COMPENDIUMCOMPENDIUM MEDICAL MANAGEMENT OF RADIATION ACCIDENTS...

  12. Data Transfer Nodes Yield Results!

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract Management Fermi SitePARTOfficeOctoberDanielDTN Data Transfer Nodes

  13. A robust window-based multi-node minimization technique using Boolean relations 

    E-Print Network [OSTI]

    Cobb, Jeffrey Lee

    2009-05-15T23:59:59.000Z

    Multi-node optimization using Boolean relations is a powerful approach for network minimization. The approach has been studied in theory, and so far its superiority over single node optimization techniques has only been ...

  14. A robust window-based multi-node minimization technique using Boolean relations 

    E-Print Network [OSTI]

    Cobb, Jeffrey Lee

    2008-10-10T23:59:59.000Z

    Multi-node optimization using Boolean relations is a powerful approach for network minimization. The approach has been studied in theory, and so far its superiority over single node optimization techniques has only been ...

  15. A robust window-based multi-node minimization technique using Boolean relations

    E-Print Network [OSTI]

    Cobb, Jeffrey Lee

    2008-10-10T23:59:59.000Z

    Multi-node optimization using Boolean relations is a powerful approach for network minimization. The approach has been studied in theory, and so far its superiority over single node optimization techniques has only been conjectured for practical...

  16. A robust window-based multi-node minimization technique using Boolean relations

    E-Print Network [OSTI]

    Cobb, Jeffrey Lee

    2009-05-15T23:59:59.000Z

    Multi-node optimization using Boolean relations is a powerful approach for network minimization. The approach has been studied in theory, and so far its superiority over single node optimization techniques has only been conjectured for practical...

  17. Percutaneous Vertebroplasty in Painful Schmorl Nodes

    SciTech Connect (OSTI)

    Masala, Salvatore, E-mail: salva.masala@tiscali.it; Pipitone, Vincenzo; Tomassini, Marco; Massari, Francesco; Romagnoli, Andrea; Simonetti, Giovanni ['Tor Vergata' University, General Hospital, Department of Diagnostic Imaging and Interventional Radiology (Italy)

    2006-02-15T23:59:59.000Z

    The Schmorl node represents displacement of intervertebral disc tissue into the vertebral body. Both Schmorl nodes and degenerative disc disease are common in the human spine. We performed a retrospective study, for the period from January 2003 to February 2005, evaluating 23 patients affected by painful Schmorl nodes, who underwent in our department percutaneous transpedicular injection of polymethylmethacrylate (vertebroplasty) in order to solve their back pain not responsive to medical and physical management. Eighteen patients reported improvement of the back pain and no one reported a worsening of symptoms. Improvement was swift and persistent in reducing symptoms. Painful Schmorl nodes, refractory to medical or physical therapy, should be considered as a new indication within those vertebral lesions adequately treatable utilizing Vertebroplasty procedure.

  18. How Many Down? Toward Understanding Systematic Risk in Networks

    E-Print Network [OSTI]

    Bencsáth, Boldizsár

    Security, Economics, Measurement, Management, Theory Keywords Networks, Security, Topology, Cyber the literature on interdependent security games. Our main area of focus is on the number of nodes that go down illustration how the outcome distribution of such networks exhibits correlation effects that increase

  19. 2013 IREP Symposium-Bulk Power System Dynamics and Control -IX (IREP), August 25-30, 2013, Rethymnon, Greece Active network management: planning under

    E-Print Network [OSTI]

    Ernst, Damien

    , Rethymnon, Greece Active network management: planning under uncertainty for exploiting load modulation

  20. Controlling Complex Networks with Compensatory Perturbations

    E-Print Network [OSTI]

    Sean P. Cornelius; William L. Kath; Adilson E. Motter

    2011-05-18T23:59:59.000Z

    The response of complex networks to perturbations is of utmost importance in areas as diverse as ecosystem management, emergency response, and cell reprogramming. A fundamental property of networks is that the perturbation of one node can affect other nodes, in a process that may cause the entire or substantial part of the system to change behavior and possibly collapse. Recent research in metabolic and food-web networks has demonstrated the concept that network damage caused by external perturbations can often be mitigated or reversed by the application of compensatory perturbations. Compensatory perturbations are constrained to be physically admissible and amenable to implementation on the network. However, the systematic identification of compensatory perturbations that conform to these constraints remains an open problem. Here, we present a method to construct compensatory perturbations that can control the fate of general networks under such constraints. Our approach accounts for the full nonlinear behavior of real complex networks and can bring the system to a desirable target state even when this state is not directly accessible. Applications to genetic networks show that compensatory perturbations are effective even when limited to a small fraction of all nodes in the network and that they are far more effective when limited to the highest-degree nodes. The approach is conceptually simple and computationally efficient, making it suitable for the rescue, control, and reprogramming of large complex networks in various domains.

  1. Wireless Sensor Network for Advanced Energy Management Solutions

    SciTech Connect (OSTI)

    Peter J. Theisen; Bin Lu, Charles J. Luebke

    2009-09-23T23:59:59.000Z

    Eaton has developed an advanced energy management solution that has been deployed to several Industries of the Future (IoF) sites. This demonstrated energy savings and reduced unscheduled downtime through an improved means for performing predictive diagnostics and energy efficiency estimation. Eaton has developed a suite of online, continuous, and inferential algorithms that utilize motor current signature analysis (MCSA) and motor power signature analysis (MPSA) techniques to detect and predict the health condition and energy usage condition of motors and their connect loads. Eaton has also developed a hardware and software platform that provided a means to develop and test these advanced algorithms in the field. Results from lab validation and field trials have demonstrated that the developed advanced algorithms are able to detect motor and load inefficiency and performance degradation. Eaton investigated the performance of Wireless Sensor Networks (WSN) within various industrial facilities to understand concerns about topology and environmental conditions that have precluded broad adoption by the industry to date. A Wireless Link Assessment System (WLAS), was used to validate wireless performance under a variety of conditions. Results demonstrated that wireless networks can provide adequate performance in most facilities when properly specified and deployed. Customers from various IoF expressed interest in applying wireless more broadly for selected applications, but continue to prefer utilizing existing, wired field bus networks for most sensor based applications that will tie into their existing Computerized Motor Maintenance Systems (CMMS). As a result, wireless technology was de-emphasized within the project, and a greater focus placed on energy efficiency/predictive diagnostics. Commercially available wireless networks were only utilized in field test sites to facilitate collection of motor wellness information, and no wireless sensor network products were developed under this project. As an outgrowth of this program, Eaton developed a patented energy-optimizing drive control technology that is complementary to a traditional variable frequency drives (VFD) to enable significant energy savings for motors with variable torque applications, such as fans, pumps, and compressors. This technology provides an estimated energy saving of 2%-10% depending on the loading condition, in addition to the savings obtained from a traditional VFD. The combination of a VFD with the enhanced energy-optimizing controls will provide significant energy savings (10% to 70% depending on the load and duty cycle) for motors that are presently connected with across the line starters. It will also provide a more favorable return on investment (ROI), thus encouraging industries to adopt VFDs for more motors within their facilities. The patented technology is based on nonintrusive algorithms that estimate the instantaneous operating efficiency and motor speed and provide active energy-optimizing control of a motor, using only existing voltage and current sensors. This technology is currently being commercialized by Eaton’s Industrial Controls Division in their next generation motor control products. Due to the common nonintrusive and inferential nature of various algorithms, this same product can also include motor and equipment condition monitoring features, providing the facility owner additional information to improve process uptime and the associated energy savings. Calculations estimated potential energy savings of 261,397GWh/Yr ($15.7B/yr), through retrofitting energy-optimizing VFDs into existing facilities, and incorporating the solution into building equipment sold by original equipment manufacturers (OEMs) and installed by mechanical and electrical contractors. Utilizing MCSA and MPSA for predictive maintenance (PM) of motors and connected equipment reduces process downtime cost and the cost of wasted energy associated with shutting down and restarting the processes. Estimated savings vary depending on the industry segment and equi

  2. Robust Clock Synchronization in Wireless Sensor Networks

    E-Print Network [OSTI]

    Saibua, Sawin

    2010-10-12T23:59:59.000Z

    Clock synchronization between any two nodes in a Wireless Sensor Network (WSNs) is generally accomplished through exchanging messages and adjusting clock offset and skew parameters of each node’s clock. To cope with unknown network message delays...

  3. Distributed connection management for real-time communication over wormhole-routed networks

    E-Print Network [OSTI]

    Sundaresan, Sharad

    1997-01-01T23:59:59.000Z

    DISTRIBUTED CONNECTION MANAGEMENT FOR REAL- TIME COMMUNICATION OVER WORMHOLE-ROUTED NETWORKS A Thesis by SHARAD SUNDARESAN Submitted to the Office of Graduate Studies of Texas ASM University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE August 1997 Major Subject: Computer Science DISTRIBUTED CONNECTION MANAGEMENT FOR REAL-TIME COMMUNICATION OVER WORMHOLE-ROUTED NETWORKS A Thesis by SHARAD SUNDARESAN Submitted to Texas AkM University in partial...

  4. Energy efficient management framework for multihop TDMA-based wireless networks

    E-Print Network [OSTI]

    Boutaba, Raouf

    and energy consumption. To do so, we first propose an Optimal approach, called Optimal Green Routing and LinkEnergy efficient management framework for multihop TDMA-based wireless networks Ahmed Amokrane a January 2014 Available online 11 January 2014 Keywords: TDMA-based multihop wireless networks Energy

  5. Signaling Game-based Approach to Power Control Management in Wireless Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Signaling Game-based Approach to Power Control Management in Wireless Networks Khalil Ibrahimi, we revisit the power control problem in wire- less networks by introducing a signaling game approach to player II which can be accurate or dis- torted. Player II picks up his power control strategy based

  6. Knowledge Network: An Information Repository with Services for Managing Concurrent Engineering Design

    E-Print Network [OSTI]

    Fox, Mark S.

    Knowledge Network: An Information Repository with Services for Managing Concurrent Engineering design engineers. The KAD system centers on a knowledge network that stores design knowledge and provides are constructing a Knowledge Aided Design (KAD) system for supporting concurrent engineering design and enhancing

  7. Economic Incentives of Providing Network Security Services Journal of Information Technology Management 1

    E-Print Network [OSTI]

    Sadeh, Norman M.

    Economic Incentives of Providing Network Security Services Journal of Information Technology Management 1 THE ECONOMIC INCENTIVES OF PROVIDING NETWORK SECURITY SERVICES ON THE INTERNET INFRASTRUCTURE Li in the economic incentives inherent in providing the defenses as well as uncertainty in current defenses. We

  8. Efficient Energy Management and Data Recovery in Sensor Networks using Latent Variables Based Tensor

    E-Print Network [OSTI]

    Simunic, Tajana

    Efficient Energy Management and Data Recovery in Sensor Networks using Latent Variables Based factor in a successful sensor network deployment is finding a good balance between maximizing the number of measurements taken (to maintain a good sampling rate) and minimizing the overall energy consumption (to extend

  9. A Trust-based Architecture for Managing Certificates in Vehicular Ad hoc Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    propose a secure and distributed public key infrastructure for vehicular ad hoc networks VANETs basedA Trust-based Architecture for Managing Certificates in Vehicular Ad hoc Networks Tahani Gazdar authority CA. We conducted a set of simulations in which we evaluate the efficiency and the stability

  10. Access Management in Multi-Administration Networks S. P. Lord, N.H. Pope, and Susan Stepney

    E-Print Network [OSTI]

    Stepney, Susan

    Access Management in Multi-Administration Networks S. P. Lord, N.H. Pope, and Susan Stepney GEC of linking together networks controlled by different administrations, and allowing these administrations and representations. S. P. Lord, N. H. Pope, and Susan Stepney. Access Management in multi-administration networks

  11. Approximation Algorithms for Constrained Relay Node Placement in Energy Harvesting Wireless

    E-Print Network [OSTI]

    Misra, Satyajayant

    Sensor Networks Satyajayant Misra, Member, IEEE, Nahid Ebrahimi Majd and Hong Huang, Member, IEEE Abstract--The constrained relay node placement problem in a wireless sensor network seeks the deployment of a minimum number of relay nodes (RNs) in a set of candidate locations in the network to satisfy specific

  12. Dynamic Network Energy Management via Proximal Message Passing

    E-Print Network [OSTI]

    problem gives Á (optimal) device power schedules Á locational marginal prices at each node in each time system Á load is what it is; generation scheduled to match it Á systems built with large margins for max coordinate via simple message exchanges with neighbors Á can be viewed as sophisticated (location, time

  13. anxiety management tool: Topics by E-print Network

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

    because ecologists and biodiversity managers do not have 62 The Relationship between Didactics and Classroom Management: Towards New Tools for the Training of Math Teachers...

  14. assets management process: Topics by E-print Network

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

    management" (Ferrari et al., 2003), many 165 7. COMPLETING THE JIGSAW: MANAGING THE DIGITAL PRESERVATION PROCESS Computer Technologies and Information Sciences Websites...

  15. american intensively managed: Topics by E-print Network

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

    and Oceanography, Inc. Recent advances in the understanding and management of eutrophication CiteSeer Summary: Major advances in the scientific understanding and management of...

  16. assessing biodiversity management: Topics by E-print Network

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

    24 25 Next Page Last Page Topic Index 281 Density Management In Pacific Northwest Forests Renewable Energy Websites Summary: lands Emphasis on managing for biodiversity and...

  17. advocacy case management: Topics by E-print Network

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

    examine the extent which prison management has been influenced by New Public Management (NPM). Much has been written about the growing influence of NPM on public services like...

  18. approach surgical management: Topics by E-print Network

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

    examine the extent which prison management has been influenced by New Public Management (NPM). Much has been written about the growing influence of NPM on public services like...

  19. analytical services management: Topics by E-print Network

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

    examine the extent which prison management has been influenced by New Public Management (NPM). Much has been written about the growing influence of NPM on public services like...

  20. attempt case management: Topics by E-print Network

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

    examine the extent which prison management has been influenced by New Public Management (NPM). Much has been written about the growing influence of NPM on public services like...

  1. air service management: Topics by E-print Network

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

    examine the extent which prison management has been influenced by New Public Management (NPM). Much has been written about the growing influence of NPM on public services like...

  2. activity management system: Topics by E-print Network

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

    automated management agents whose behavior also has to dynamically change to reflect the evolution of the system being managed. Policies are a means of specifying and influencing...

  3. addressing waste management: Topics by E-print Network

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

    outside the Former Hazardous Waste Management Homes, Christopher C. 25 Beyond 70%: Assessing Alternative Waste Management Opportunities for Institutions. Open Access Theses and...

  4. Network Management Network Management

    E-Print Network [OSTI]

    : is it important? · Cost are essentially depending on ­ Equipment costs (CAPEX, Capital Expenditures) · Amortized

  5. Network Management Network Management

    E-Print Network [OSTI]

    depending on ­ Equipment costs (CAPEX, Capital Expenditures) · Amortized over several years ­ Costs

  6. A parallel textured algorithm for optimal routing in data networks

    E-Print Network [OSTI]

    Hsieh, Wen-Lin

    1991-01-01T23:59:59.000Z

    40 40 59 65 66 66 69 74 75 75 84 84 85 85 90 101 105 107 APPENDIX A APPENDIX B 110 115 APPENDIX C . . 123 VITA 150 vnl LIST OF TABLES TABLE Page I Routing methodology for some existing networks II Network F with traflic 30... from node 1 to node 4 III Network F with traflic 30 from node 1 to node 3 IV Network F' with traflic 30 from node 1 to node 4 V Network Z with trafflc 30 from node 2 to node 7 VI Commodities for twenty nodes network Y 45 46 47 64 92 VII...

  7. Dynamic Power Management with Power Network-on-Chip Inna Vaisband and Eby G. Friedman

    E-Print Network [OSTI]

    Friedman, Eby G.

    Dynamic Power Management with Power Network-on-Chip Inna Vaisband and Eby G. Friedman Department dynamically controlled power to support power efficient and portable systems. Effi- ciently providing multiple point-of-load on-chip voltages requires fundamental changes to the power delivery and management process

  8. SelfTuning Wireless Network Power Management Manish Anand, Edmund B. Nightingale, and Jason Flinn

    E-Print Network [OSTI]

    Flinn, Jason

    interface, and the energy usage of the platform. We have implemented STPM as a Linux kernel module­client applications. Compared to default 802.11b power management, STPM reduces the total energy usage of an i network power management often substan­ tially degrades performance and may even increase over­ all energy

  9. Self-Tuning Wireless Network Power Management MANISH ANAND, EDMUND B. NIGHTINGALE, and JASON FLINN

    E-Print Network [OSTI]

    Flinn, Jason

    -client applica- tions. Compared to default 802.11b power management, STPM reduces the total energy usage of an i, streaming audio, and thin-client re- mote X displays. For instance, STPM reduces the total energy usage network power management of- ten substantially degrades performance and may even increase overall energy

  10. Self-Tuning Wireless Network Power Management Manish Anand, Edmund B. Nightingale, and Jason Flinn

    E-Print Network [OSTI]

    Flinn, Jason

    interface, and the energy usage of the platform. We have implemented STPM as a Linux kernel module-client applications. Compared to default 802.11b power management, STPM reduces the total energy usage of an i network power management often substan- tially degrades performance and may even increase over- all energy

  11. Vulnerability of critical infrastructures : identifying critical nodes.

    SciTech Connect (OSTI)

    Cox, Roger Gary; Robinson, David Gerald

    2004-06-01T23:59:59.000Z

    The objective of this research was the development of tools and techniques for the identification of critical nodes within critical infrastructures. These are nodes that, if disrupted through natural events or terrorist action, would cause the most widespread, immediate damage. This research focuses on one particular element of the national infrastructure: the bulk power system. Through the identification of critical elements and the quantification of the consequences of their failure, site-specific vulnerability analyses can be focused at those locations where additional security measures could be effectively implemented. In particular, with appropriate sizing and placement within the grid, distributed generation in the form of regional power parks may reduce or even prevent the impact of widespread network power outages. Even without additional security measures, increased awareness of sensitive power grid locations can provide a basis for more effective national, state and local emergency planning. A number of methods for identifying critical nodes were investigated: small-world (or network theory), polyhedral dynamics, and an artificial intelligence-based search method - particle swarm optimization. PSO was found to be the only viable approach and was applied to a variety of industry accepted test networks to validate the ability of the approach to identify sets of critical nodes. The approach was coded in a software package called Buzzard and integrated with a traditional power flow code. A number of industry accepted test networks were employed to validate the approach. The techniques (and software) are not unique to power grid network, but could be applied to a variety of complex, interacting infrastructures.

  12. accident management issues: Topics by E-print Network

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

    build new systems to manage streaming data. The purpose of this paper is to review recent work in data stream management systems, with an emphasis on application requirements, data...

  13. animal disease management: Topics by E-print Network

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

    Summary: ANSC 4534 Animal Welfare and Bioethics 3 3. 9 credits of ANSC management courses required 4. 6 creditsSample 4-year plan: ANSC - Animal Care & Management 0104A...

  14. asthma management program: Topics by E-print Network

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

    Management Programs Texas A&M University - TxSpace Summary: With the oil crisis of the 1970's, energy management programs became important to both the private and public sectors....

  15. adaptive land management: Topics by E-print Network

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

    126-3, and NAVFAC MO-100.2 Wildlife Management-tm 1982-01-01 13 Baltic Ecosystem Adaptive Management Environmental Sciences and Ecology Websites Summary: ;2 Baltic Ecosystem...

  16. applied compliance management: Topics by E-print Network

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

    DIPLOMA Physics Websites Summary: Professional, Applied & Continuing Education HUMAN RESOURCE MANAGEMENT DIPLOMA The UWDCE Human) Business Fundamentals (36 Hours) ...

  17. aquaculture health management: Topics by E-print Network

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

    in North America of the environmentalwhile ensuring environmental protection. Public perceptionenvironmental conditions Health management Alien species Integrated...

  18. socP2P: P2P Content Discovery Enhancement by considering Social Networks Characteristics

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    socP2P: P2P Content Discovery Enhancement by considering Social Networks Characteristics Reza-- Content management appears as an essential requirement in order to deploy enhanced P2P networks. In P2P/nodes; therefore an efficient search mechanism is required. The proposed search algorithm in this paper, called socP

  19. Management of Adenoid Cystic Carcinoma of the Breast: A Rare Cancer Network Study

    SciTech Connect (OSTI)

    Khanfir, Kaouthar, E-mail: kaouthar.khanfir@rsv-gnw.ch [Hopital de Sion, CHCVs, Sion (Switzerland); Kallel, Adel [Institut Gustave Roussy, Villejuif (France); Villette, Sylviane [Centre Rene Huguenin, Paris (France); Belkacemi, Yazid [CHU Henri Mondor, Centre Oscar Lambret, Lille (France); Vautravers, Claire [Centre George Francois Leclerc, Dijon (France); Nguyen, TanDat [Institut Jean Gaudinot, Reims (France); Miller, Robert [Mayo Clinic, Rochester, Minnesota (United States); Li Yexiong [Peking Union Medical College, Beijing (China); Taghian, Alphonse G. [Massachusetts General Hospital, Boston, Massachusetts (United States); Boersma, Liesbeth [Maastricht University Medical Center (MAASTRO clinic), Maastricht (Netherlands); Poortmans, Philip [Dr. Bernard Verbeeten Institute, Tilburg (Netherlands); Goldberg, Hadassah [Western Galilee Hospital-Nahariya, Nahariya (Israel); Vees, Hansjorg [Hopitaux Universitaires de Geneve, Geneva (Switzerland); Senkus, Elzbieta [Medical University of Gdansk, Gdansk (Poland); Igdem, Sefik; Ozsahin, Mahmut [Istanbul Bilim University, Istanbul (Turkey); Jeanneret Sozzi, Wendy [Centre Hospitalier Universitaire Vaudois, Lausanne (Switzerland)

    2012-04-01T23:59:59.000Z

    Background: Mammary adenoid cystic carcinoma (ACC) is a rare breast cancer. The aim of this retrospective study was to assess prognostic factors and patterns of failure, as well as the role of radiation therapy (RT), in ACC. Methods: Between January 1980 and December 2007, 61 women with breast ACC were treated at participating centers of the Rare Cancer Network. Surgery consisted of lumpectomy in 41 patients and mastectomy in 20 patients. There were 51(84%) stage pN0 and 10 stage cN0 (16%) patients. Postoperative RT was administered to 40 patients (35 after lumpectomy, 5 after mastectomy). Results: With a median follow-up of 79 months (range, 6-285), 5-year overall and disease-free survival rates were 94% (95% confidence interval [CI], 88%-100%) and 82% (95% CI, 71%-93%), respectively. The 5-year locoregional control (LRC) rate was 95% (95% CI, 89%-100%). Axillary lymph node dissection or sentinel node biopsy was performed in 84% of cases. All patients had stage pN0 disease. In univariate analysis, survival was not influenced by the type of surgery or the use of postoperative RT. The 5-year LRC rate was 100% in the mastectomy group versus 93% (95% CI, 83%-100%) in the breast-conserving surgery group, respectively (p = 0.16). For the breast-conserving surgery group, the use of RT significantly correlated with LRC (p = 0.03); the 5-year LRC rates were 95% (95% CI, 86%-100%) for the RT group versus 83% (95% CI, 54%-100%) for the group receiving no RT. No local failures occurred in patients with positive margins, all of whom received postoperative RT. Conclusion: Breast-conserving surgery is the treatment of choice for patients with ACC breast cancer. Axillary lymph node dissection or sentinel node biopsy might not be recommended. Postoperative RT should be proposed in the case of breast-conserving surgery.

  20. An ANFIS Based Sensor Network for a Residential Energy Management System D. Senthilkumar, S. Kumar, Y. Ozturk and G. Lee

    E-Print Network [OSTI]

    Kumar, Sunil

    An ANFIS Based Sensor Network for a Residential Energy Management System D. Senthilkumar, S. Kumar management system project, an Integrated and Cognitive Home Energy Management System for Demand Response (DR management system which addresses demand response with efficient energy consumption. 1. Introduction State

  1. advanced spectrum management: Topics by E-print Network

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

    communicate efficiently avoiding interference with licensed or unlicensed users. In this work, a fuzzy logic based system for spectrum management is proposed where the radio can...

  2. asbestos management systemfams: Topics by E-print Network

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

    handled and disposed of. These requirements cover Class II and Class III asbestos work and waste management and apply to workers and supervisors performing such work and...

  3. aggressive medical management: Topics by E-print Network

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

    Engineering Websites Summary: Status Change MedicalPrescription Drug Card Medical Care Outside Ohio Dual Coverage Case ManagementAdministration of Medications Laboratory...

  4. aquatic plant management: Topics by E-print Network

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

    Plant Manage. 46: 1-7 Environmental Sciences and Ecology Websites Summary: % of the fish species listed in the Endangered Spe- cies Act (Lassuy 1994). Invasive aquatic plant...

  5. alberta forest management: Topics by E-print Network

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

    potential users of the thesis Hamann, Andreas 3 Faculty of MANAGEMENT Alberta Oil & Gas Company1 Computer Technologies and Information Sciences Websites Summary: Faculty of...

  6. aquatic management options: Topics by E-print Network

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

    Theses and Dissertations Summary: ??Anthropogenic impacts such as fishing and eutrophication are significant challenges to the sustainable management of aquatic ecosystems....

  7. active farm management: Topics by E-print Network

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

    monitoring and controls... Pena, Jose G.; Klinefelter, Danny A. 2008-10-17 5 Stochastic Models and Analysis for Resource Management in Server Farms Computer Technologies and...

  8. adaptive resource management: Topics by E-print Network

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

    IN INSULAR RESOURCE DEVELOPMENT AND MANAGEMENT Biology and Medicine Websites Summary: of Technology Assessment of the U. S. Congress as part of a broader study of renewable...

  9. aquatic resource management: Topics by E-print Network

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

    IN INSULAR RESOURCE DEVELOPMENT AND MANAGEMENT Biology and Medicine Websites Summary: of Technology Assessment of the U. S. Congress as part of a broader study of renewable...

  10. aging management part: Topics by E-print Network

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

    IN INSULAR RESOURCE DEVELOPMENT AND MANAGEMENT Biology and Medicine Websites Summary: of Technology Assessment of the U. S. Congress as part of a broader study of renewable...

  11. air resource management: Topics by E-print Network

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

    IN INSULAR RESOURCE DEVELOPMENT AND MANAGEMENT Biology and Medicine Websites Summary: of Technology Assessment of the U. S. Congress as part of a broader study of renewable...

  12. archive management workshop: Topics by E-print Network

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

    kind of acceptable archival management Gilliland, Anne; White, Kelvin 2009-01-01 122 DOE Hydrogen Pipeline Working Group Workshop Renewable Energy Websites Summary: DOE Hydrogen...

  13. analysing pesticide management: Topics by E-print Network

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

    have faced legal problems from pesticide drift and spills. Improved pesticide and fertilizer use is viewed as an important step in protecting is fundamental to managing pests...

  14. active fire management: Topics by E-print Network

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

    ecosystems requires an understanding Standiford, Richard B. 28 Fire Management Today ost mature lodgepole pine Environmental Sciences and Ecology Websites Summary: (Collins et...

  15. adults pharmacological management: Topics by E-print Network

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

    Jose Manuel Garca-verdugo 2002-01-01 159 HOW EMPLOYABLE ARE PEOPLE WITH SERIOUS MENTAL ILLNESS? CASE MANAGERS AND UNDERGRADUATES EXPECTATIONS. Open Access Theses and...

  16. asian farmer managed: Topics by E-print Network

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

    soil fertility is not popular among the farmers. The determination and management of soil fertility by the farmers have no significant ( at 5 % significance level) relationships...

  17. accident management strategies: Topics by E-print Network

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

    inherent in all activity. Dynamic enterprise will inevitably create new risks. Risk management is about ensuring that all significant relevant risks are understood and prioritised...

  18. active management booklet: Topics by E-print Network

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

    Li Steven H. Low Qinghe Yin January 15, 2001 Abstract We describe a new active queue management scheme, Random Exponential Marking, queue length or delay. While congestion measure...

  19. accident management strategy: Topics by E-print Network

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

    inherent in all activity. Dynamic enterprise will inevitably create new risks. Risk management is about ensuring that all significant relevant risks are understood and prioritised...

  20. aging management strategy: Topics by E-print Network

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

    inherent in all activity. Dynamic enterprise will inevitably create new risks. Risk management is about ensuring that all significant relevant risks are understood and prioritised...

  1. area management plan: Topics by E-print Network

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

    6 NEW RIVER AREA OF CRITICAL ENVIRONMENTAL CONCERN MANAGEMENT PLAN CiteSeer Summary: New River is a dynamic, ever-changing system influenced by biological, climatological,...

  2. accident management program: Topics by E-print Network

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

    SQL Server database capabilities of relational databases in conjunction with the new "Big Data" management frameworks for data Rose, Michael R. 12 STATE OF CALIFORNIA...

  3. accident management instrumentation: Topics by E-print Network

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

    : approche constructiviste, qualitative et microsociologique d'un mythe utile Le New Public Management s'estil vraiment diffus partout, d'une faon large et homogne ?...

  4. asset management system: Topics by E-print Network

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

    techniques for early error detection and fast recovery in a database management system (DBMS California at Irvine, University of 405 Division of Information Information Systems...

  5. anesthetic management techniques: Topics by E-print Network

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

    "Ozsu-Valduriez textbook Principles of Distributed Database Systems 10 reflects the evolution of distributed data management and distributed database systems. In this new...

  6. asthma management system: Topics by E-print Network

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

    techniques for early error detection and fast recovery in a database management system (DBMS California at Irvine, University of 302 Division of Information Information Systems...

  7. agriculture phosphorus management: Topics by E-print Network

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

    Curriculum Materials Available for Sale Agricultural Business Management -Plant Science 90.00 Chemistry Websites Summary: - Plant Science 90.00 Agricultural Business...

  8. agent management system: Topics by E-print Network

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

    Data Physics Websites Summary: , and the relations between hypotheses present and past. Such hypotheses are managed with a multi-agent sys- tem that plausible hypotheses...

  9. age care managers: Topics by E-print Network

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

    2 Managing Prosperity: Estate and Retirement Planning for All Ages Planning for Long-Term Health Care Computer Technologies and Information Sciences Websites Summary: 15 million by...

  10. agricultural management practice: Topics by E-print Network

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

    areas. Published by Elsevier B.V. Keywords: Carbon Lawrence, Rick L. 7 Best Environmental Management Practices Environmental Sciences and Ecology Websites Summary: Best...

  11. agricultural management practices: Topics by E-print Network

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

    areas. Published by Elsevier B.V. Keywords: Carbon Lawrence, Rick L. 7 Best Environmental Management Practices Environmental Sciences and Ecology Websites Summary: Best...

  12. alternative waste management: Topics by E-print Network

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

    Hazardous Waste Training Schedule Fall 2012 Date Day Room Time Dai, Pengcheng 13 Eugene Solid Waste Management Market Analysis Environmental Sciences and Ecology Websites Summary:...

  13. accident management aids: Topics by E-print Network

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

    Accident, Illness and Liability Coverage Risk Management in the 4-H Youth Development Program Environmental Sciences and Ecology Websites Summary: 1 Accident, Illness and...

  14. aided risk management: Topics by E-print Network

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

    electricity market and has Paris-Sud XI, Universit de 2 Enterprise Risk Management Program Environmental Sciences and Ecology Websites Summary: Compliance Risk Operational Risk...

  15. accident management center: Topics by E-print Network

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

    : a safe management system for virtualized data center Rmy Pottier, Jean-Marc Menaud Physics Websites Summary: -name.last-name@mines-nantes.fr Abstract--Virtual machine...

  16. anger management program: Topics by E-print Network

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

    Load Management Programs CATEE Conference October, 2012 Agenda Outline I. General Demand Response Definition II. General Demand Response Program Rules III. CenterPoint...

  17. ageing management programs: Topics by E-print Network

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

    ...4 4. Physical Exam Requirements Rosen, Jay 13 Demand Response: Load Management Programs Texas A&M University - TxSpace Summary:...

  18. aging management programs: Topics by E-print Network

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

    Load Management Programs CATEE Conference October, 2012 Agenda Outline I. General Demand Response Definition II. General Demand Response Program Rules III. CenterPoint...

  19. active load management: Topics by E-print Network

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

    Load Management Programs CATEE Conference October, 2012 Agenda Outline I. General Demand Response Definition II. General Demand Response Program Rules III. CenterPoint...

  20. Distributed downhole drilling network

    DOE Patents [OSTI]

    Hall, David R.; Hall, Jr., H. Tracy; Fox, Joe; Pixton, David S.

    2006-11-21T23:59:59.000Z

    A high-speed downhole network providing real-time data from downhole components of a drilling strings includes a bottom-hole node interfacing to a bottom-hole assembly located proximate the bottom end of a drill string. A top-hole node is connected proximate the top end of the drill string. One or several intermediate nodes are located along the drill string between the bottom-hole node and the top-hole node. The intermediate nodes are configured to receive and transmit data packets transmitted between the bottom-hole node and the top-hole node. A communications link, integrated into the drill string, is used to operably connect the bottom-hole node, the intermediate nodes, and the top-hole node. In selected embodiments, a personal or other computer may be connected to the top-hole node, to analyze data received from the intermediate and bottom-hole nodes.

  1. Robust and Efficient Software Management in Sensor Networks

    E-Print Network [OSTI]

    Breu, Ruth

    on the first technique was done mainly based on network-centric reprogramming. For exam- ple, the Deluge system [14] was developed for reprogramming Mica2 motes. Deluge propagates software update over the ad hoc

  2. Survey on Social Networking Site for Engineering Management Program

    E-Print Network [OSTI]

    Mokkarala, Rajyalakshmi Sirisha

    2012-07-27T23:59:59.000Z

    Social Networking Sites (SNSs) such as Facebook, LinkedIn and Twitter have gained much popularity as Web 2.0 technologies and have been widely adopted by different age groups from teenagers to students to working professionals. ...

  3. Predictive Protocol Management with Contingency Planning for Wireless Sensor Networks

    E-Print Network [OSTI]

    Raja, Anita

    characteristics of the Radio-Frequency (RF) in which the network operates. I. INTRODUCTION Energy efficiency protocol model with contingency planning (PPM & CP). The premise behind the approach is that providing

  4. accident management: Topics by E-print Network

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

    accident management First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Medical Management of Radiation...

  5. accident management measures: Topics by E-print Network

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

    accident management measures First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Medical Management of...

  6. accident management epr: Topics by E-print Network

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

    accident management epr First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Medical Management of Radiation...

  7. Hopper Compute Nodes

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) EnvironmentalGyroSolé(tm) HarmonicbetandEnergy 2010 A selection ofCompute Nodes

  8. architecture knowledge management: Topics by E-print Network

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

    architecture knowledge management First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Architectural...

  9. airway management strategy: Topics by E-print Network

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

    a transaction made now for one that would be made at a later date. Risk management aids companies in minimizing... Naumoff, C.; Shipley, A. M. 2007-01-01 57 Aligning Strategies...

  10. automobile management application: Topics by E-print Network

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

    A Web Portal for Managing and Monitoring Application Execution on Global Grids.placek@siemens.com and raj@cs.mu.oz.au Abstract. G-Monitor was developed in response to the need...

  11. adequate irrigation management: Topics by E-print Network

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

    Lewis, David Carroll 1985-01-01 4 Guidelines for Developing Soil and Water Management Programs: Irrigated Pecans Texas A&M University - TxSpace Summary: The book...

  12. area watershed management: Topics by E-print Network

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

    which is defi ned as a coordinated environmental management framework that focuses public and private efforts on a watershed?s highest- priority problems. In the past, such an...

  13. airborne waste management: Topics by E-print Network

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

    Water Quality Project Animal Waste with the Symposium on the State of the Science: Animal Manure and Waste Management Attended by: M. Risse (UGA), T. Doug Hamilton agreed to...

  14. ansto waste management: Topics by E-print Network

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

    Water Quality Project Animal Waste with the Symposium on the State of the Science: Animal Manure and Waste Management Attended by: M. Risse (UGA), T. Doug Hamilton agreed to...

  15. alternative agricultural management: Topics by E-print Network

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

    that you have a working copy. See Ashlea about the alternate course you select. If you plan to take courses at another institution and transfer 11 Agricultural Systems Management...

  16. alien plant management: Topics by E-print Network

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

    University - TxSpace Summary: Park, Texas plant of the Rohm and Haas Company has an energy management program that is unique in my experience and has proven to be highly...

  17. accident management procedures: Topics by E-print Network

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

    insurance for North Carolina Motor Fleet Howitt, Ivan 50 25.07.03.M3.01 Energy Risk Management Program Page 1 of 5 STANDARD ADMINISTRATIVE PROCEDURE Geosciences Websites Summary:...

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

    E-Print Network [OSTI]

    Krishna Moorthy, Jayasankar

    1997-01-01T23:59:59.000Z

    MODEL A. What Is NetEx? . B. NetEx Block Schematic . . C. The Host Traffic Manager D. The Network Traffic Manager (NTM) III DESIGN OF THE HOST TRAFFIC MANAGER A. Design Requirements B. Design Methodology C. HTM ? System Layout D. Design... of Future Work REFERENCES . 7 7 9 10 12 12 13 16 17 22 25 27 29 32 32 32 36 37 39 39 41 43 45 CHAPTER Page VITA 47 LIST OF FIGURES FIGURE Page Decomposition of Connection into Servers ISO OSI Model NetEx Block Schematic I...

  19. MANAGING THE NATIONAL ROAD NETWORK MAINTENANCE IN SPAIN Vctor Gmez Fras

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    MANAGING THE NATIONAL ROAD NETWORK MAINTENANCE IN SPAIN Víctor Gómez Frías GETINSA (Spain), vgomez@getinsa.es Teresa Sánchez Chaparro ANECA (Spain), tsanchez@aneca.es ABSTRACT The Spanish Ministry of Public Works point of view. In order to understand the importance and difficulty that presents in Spain

  20. 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

  1. An Interactive Context-aware Power Management Technique for Optimizing Sensor Network Lifetime

    E-Print Network [OSTI]

    Simunic, Tajana

    An Interactive Context-aware Power Management Technique for Optimizing Sensor Network Lifetime an important event with desired fidelity). To that end, in this paper we propose a novel interactive power sensor data and system specifications (battery and solar panel specs, sensing and communication costs

  2. 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)

    Energy Management System for an Hybrid Electric Vehicle, Using Ultracapacitors and Neural Networks and specific energy contained in most electric batteries compared to that of gasoline, is resolved in hybrid to accept energy from regenerative braking. For this reason, hybrid systems use an auxiliary energy system

  3. Reactive power management of distribution networks with wind generation for improving voltage stability

    E-Print Network [OSTI]

    Pota, Himanshu Roy

    -loadability Reactive power margin Wind turbine a b s t r a c t This paper proposes static and dynamic VAR planningReactive power management of distribution networks with wind generation for improving voltage February 2013 Available online Keywords: Composite load Distributed generation D-STATCOM Q

  4. Congestion Avoidance based on Light-Weight Buffer Management in Sensor Networks

    E-Print Network [OSTI]

    Chen, Shigang

    , congestion may occur as data packets converge toward a sink. Congestion causes energy waste, throughput1 Congestion Avoidance based on Light-Weight Buffer Management in Sensor Networks Shigang Chen, and above all, energy supply. When a critical event triggers a surge of data generated by the sensors

  5. Policy-based Management of Body-Sensor Networks

    E-Print Network [OSTI]

    Keoh, S.; Twidle, K.; Pryce, N.; Schaeffer-Filho, A.; Lupu, E.; Dulay, N.; Sloman, M.; Heeps, S.

    Keoh,S. Twidle,K. Pryce,N. Schaeffer-Filho,A. Lupu,E. Dulay,N. Sloman,M. Heeps,S. Strowes,S. Sventek,J.S. Katsiri,E. Proceedings of the International Workshop on Wearable and Implantable Body Sensor Networks, Aachen, Germany, March 2007

  6. Editorial Manager(tm) for Wireless Networks Manuscript Draft

    E-Print Network [OSTI]

    Kalyanaraman, Shivkumar

    power consumption. We also show that not only transmission power is greatly reduced, but also the aggregate power consumption for a successful transmission and reception. Moreover, a lower transmission power implies lower interference thus potentially increase the network capacity. Index Terms-- Wireless

  7. Class-based Bandwidth Management in Heterogeneous Wireless Networks

    E-Print Network [OSTI]

    Sreenan, Cormac J.

    function of band- width, packet loss, delay, and energy information using integer linear programming}@cs.ucc.ie 2 Electronics and Electrical Communications Dept., Cairo University, Egypt azahran, utility-based optimisation of network selection and resource allocation for clients of different classes

  8. Radio Resource Management for Green Wireless Networks Cristina Comaniciu

    E-Print Network [OSTI]

    Mandayam, Narayan

    , an auctioning strategy is proposed for cellular networks that ensures net energy savings. The pricing scheme propose an auction based pricing system that incentivizes both parties to cooperate for energy savings is to bid their true valuation of their energy resources, and overall effective energy gains occur under

  9. Network Configuration and Management via Two-Phase Online Optimization

    E-Print Network [OSTI]

    Yuksel, Murat

    with highly dynamic behavior, it is not practical to accurately capture system's response with a model rates or variable demand profile. In this paper, we take the latter approach and perform in-situ trials the best configuration settings for networks is becoming more difficult. Manageabil- ity of large

  10. Evolving Cellular Automata for Location Management in Mobile Computing Networks

    E-Print Network [OSTI]

    Ha, Dong S.

    entering one of these reporting cells. To create such an evolving CA system, cells in the network for a number of test problems. Index Terms--Cellular automata, genetic algorithms, mobile computing, mobility to interferences. On the other hand, a miss on the location of a mobile terminal will necessitate a search

  11. ADAPTIVE CONNECTION MANAGEMENT FOR MISSION CRITICAL APPLICATIONS OVERATM NETWORKS

    E-Print Network [OSTI]

    Bettati, Riccardo

    include supervisory command and control of defense systems, manufacturing plants, etc. In addition critical applications through innovative connection management. A connection can be viewed as a contract­oriented communication is the existence of a connection establishment phase preceding the actual data transfer

  12. ADAPTIVE CONNECTION MANAGEMENT FOR MISSION CRITICAL APPLICATIONS OVER ATM NETWORKS

    E-Print Network [OSTI]

    Sahoo, Anirudha

    include supervisory command and control of defense systems, manufacturing plants, etc. In addition critical applications through innovative connection management. A connection can be viewed as a contract-oriented communication is the existence of a connection establishment phase preceding the actual data transfer

  13. advanced energy management: Topics by E-print Network

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

    energy management First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Graduate Catalog 2013-2014 Advanced...

  14. advanced test manage: Topics by E-print Network

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

    advanced test manage First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Advancing Toward Test Automation...

  15. Home Energy Management as a Service over Networking Platforms

    E-Print Network [OSTI]

    Al Faruque, Mohammad Abdullah

    for the residential sector (22% of the U.S. primary energy). Moreover, towards this goal, U.S. Department of Energy Energy Management (HEM) may be used to improve the energy consumption in the residential buildings and existing residential and commercial buildings to reduce the national energy consumption [3]. Therefore

  16. Congestion Avoidance Based on Lightweight Buffer Management in Sensor Networks

    E-Print Network [OSTI]

    Chen, Shigang

    causes energy waste, throughput reduction, and information loss. However, the important problem space, communication bandwidth, and above all, energy supply. When a critical event triggers a surge based on light- weight buffer management. We describe simple yet effective approaches that prevent data

  17. When Network Coding improves the Performances of Clustered Wireless Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    When Network Coding improves the Performances of Clustered Wireless Networks that significantly increases the performances of clustering algorithms in wireless multi-hop networks-XOR coding; wireless multi-hop networks; clustering I. INTRODUCTION Partitioning nodes

  18. 2006 Raj JainCSE574sWashington University in St. Louis Energy ManagementEnergy Management

    E-Print Network [OSTI]

    Jain, Raj

    node Does not give min total power Reduced lifetime for the network 6. Conditional Min-Max Battery://www.cse.wustl.edu/~jain/cse574-06/ #12;16-2 ©2006 Raj JainCSE574sWashington University in St. Louis OverviewOverview Battery Power Management #12;16-3 ©2006 Raj JainCSE574sWashington University in St. Louis Battery Management

  19. Data Transfer Nodes

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract Management Fermi SitePARTOfficeOctoberDaniel

  20. Critical Infrastructure Networks and Supernetworks: New Tools for Dynamics,

    E-Print Network [OSTI]

    Nagurney, Anna

    Critical Infrastructure Networks and Supernetworks: New Tools for Dynamics, Network Efficiency Variational Inequalities · A New Network Performance/Efficiency Measure with Applications to Critical, Communication, and Energy Networks #12;Components of Common Physical Networks Network System Nodes Links Flows

  1. Improving the performance of distributed simulations of wireless sensor networks

    E-Print Network [OSTI]

    Jin, Zhong-Yi

    2010-01-01T23:59:59.000Z

    Overview of Wireless Sensor Networks . . 2.1.2 Difficultiesin parallel a wireless sensor network with two duty cycledin parallel a wireless sensor network with three nodes that

  2. Bridge-Node Selection and Loss Recovery in Island Multicast

    E-Print Network [OSTI]

    Chan, Shueng-Han Gary

    With the availability and penetration of multicast-capable routers, the local networks in the Internet nowadays are generally multicast-capable. These multicast domains or so- called "islands" are interconnected by routers-points (bridge- nodes), namely, Closest to Neighbor's Centroid (CNC), Clos- est to Neighbor's Leader (CNL

  3. Parallel-aware, dedicated job co-scheduling within/across symmetric multiprocessing nodes

    DOE Patents [OSTI]

    Jones, Terry R. (Livermore, CA); Watson, Pythagoras C. (Livermore, CA); Tuel, William (Kingston, NY); Brenner, Larry (Austin, TX); ,Caffrey, Patrick (Saugerties, NY); Fier, Jeffrey (Livermore, CA)

    2010-10-05T23:59:59.000Z

    In a parallel computing environment comprising a network of SMP nodes each having at least one processor, a parallel-aware co-scheduling method and system for improving the performance and scalability of a dedicated parallel job having synchronizing collective operations. The method and system uses a global co-scheduler and an operating system kernel dispatcher adapted to coordinate interfering system and daemon activities on a node and across nodes to promote intra-node and inter-node overlap of said interfering system and daemon activities as well as intra-node and inter-node overlap of said synchronizing collective operations. In this manner, the impact of random short-lived interruptions, such as timer-decrement processing and periodic daemon activity, on synchronizing collective operations is minimized on large processor-count SPMD bulk-synchronous programming styles.

  4. Semantic associative network for text analysis (SANTA)

    E-Print Network [OSTI]

    Airhart, Robert William

    2000-01-01T23:59:59.000Z

    Based on theories of associations, the Semantic Associative Network for Text Analysis (SANTA) has been developed. Nodes in the network represent words and links between nodes represent the association strengths between them. The links are adjusted...

  5. With the development of the MEMS technology and of wireless networking, the sensor network area has been an active field of research in the last five years. Sensor network

    E-Print Network [OSTI]

    Management . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3 The SoC/NoC Model. 16 3.1 System to monitoring applications and provide high resolution obser- vations of the environment. The main constraint of the sensor networks is energy as the nodes are powered with non renewable batteries, and numerous techniques

  6. 96 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 12, NO. 1, JANUARY 2004 Managing Power Consumption in Networks on Chips

    E-Print Network [OSTI]

    Managing Power Consumption in Networks on Chips Tajana Simunic, Stephen P. Boyd, and Peter Glynn, Member, IEEE Abstract--In this paper, we present a new methodology for managing power consumption of networks-on-chips (NOCs). A power management problem is formulated for the first time using closed-loop control concepts

  7. Managing Real-Time Database Transactions in Mobile Ad-Hoc Networks ** Le Gruenwald Shankar M. Banik Chuo N. Lau Matilde Montealegre

    E-Print Network [OSTI]

    Gruenwald, Le

    Managing Real-Time Database Transactions in Mobile Ad-Hoc Networks ** Le Gruenwald Shankar M. Banik, transaction management, ad-hoc networks. 1. INTRODUCTION Rapid developments in wireless technology have enabled mobile users to access data from different sites. The Mobile MultiDatabase Management Systems

  8. A Power-Aware Technique to Manage Real-Time Database Transactions in Mobile Ad-Hoc Networks **

    E-Print Network [OSTI]

    Gruenwald, Le

    1 A Power-Aware Technique to Manage Real-Time Database Transactions in Mobile Ad-Hoc Networks ** Le@ou.edu; smbanik@ou.edu) ** This work is partially supported by the National Science Foundation grant No. EIA connectivity is required. Techniques that manage database transactions in MANET need to address additional

  9. Reverse Supply Chain Management and Electronic Waste Recycling: A Multitiered Network Equilibrium Framework for E-Cycling

    E-Print Network [OSTI]

    Nagurney, Anna

    Reverse Supply Chain Management and Electronic Waste Recycling: A Multitiered Network Equilibrium for the modeling of reverse supply chain management of electronic waste, which includes recycling. We describe the behavior of the various decision-makers, consisting of the sources of electronic waste, the recyclers

  10. "apsched: request exceeds max nodes, alloc"

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

    "apsched: request exceeds max nodes, alloc" runtime error message: "apsched: request exceeds max nodes, alloc" September 12, 2014 (0 Comments) Symptom: User jobs with single or...

  11. Team Oriented Multicast: a Scalable Routing Protocol for Large Mobile Networks

    E-Print Network [OSTI]

    Park, Joon-Sang

    Team Oriented Multicast: a Scalable Routing Protocol for Large Mobile Networks Yunjung Yi, Mario Team Oriented Multicast (TOM). TOM builds up a "motion aware" hierarchy to support efficient, scalable team multicast protocol. TOM identifies clusters of nodes with same affinity as teams and manages

  12. Collaborative Firewalling in Wireless Networks Mahmoud Taghizadeh

    E-Print Network [OSTI]

    Liu, Alex X.

    Collaborative Firewalling in Wireless Networks Mahmoud Taghizadeh Department of ECE Michigan State elements to enforce access policies in computer networks. Open network architecture, shared wireless medium for wireless networks in which nodes collaboratively perform packet filtering to address resource squandering

  13. Community consistency determines the stability transition window of power-grid nodes

    E-Print Network [OSTI]

    Kim, Heetae; Holme, Petter

    2015-01-01T23:59:59.000Z

    The synchrony of electric power systems is important in order to maintain stable electricity supply. Recently, the measure basin stability was introduced to quantify a node's ability to recover its synchronization when perturbed. In this work, we focus on how basin stability depends on the coupling strength between nodes. We use the Chilean power grid as a case study. In general, the basin stability goes from zero to one as the coupling strength increases. However, this transition does happen for the same values for different nodes. By understanding the transition for individual nodes, we can further characterize their role in the power-transmission dynamics. We find that nodes with an exceptionally large transition window also have a low community consistency. In other words, they are hard to classify into one community when applying a community detection algorithm to the network. This also gives an efficient way to identify nodes with a long transition window (which is a computationally time-consuming task)...

  14. Open Problems in Network-aware Data Management in Exa-scale Computing and Terabit Networking Era

    E-Print Network [OSTI]

    Balman, Mehmet

    2014-01-01T23:59:59.000Z

    1st Workshop on High-Performance Computing meets Databases (Provisioning,High Performance Computing, Networking, StorageConference for High Performance Computing, Networking,

  15. Dynamic resource allocation in WDM networks with optical bypass and waveband switching

    E-Print Network [OSTI]

    Chen, Li-Wei, Ph. D. Massachusetts Institute of Technology

    2005-01-01T23:59:59.000Z

    In this thesis, we investigate network architecture from the twin perspectives of link resource allocation and node complexity in WDM optical networks Chapter 2 considers networks where the nodes have full wavelength ...

  16. E-Print Network 3.0 - average beam power Sample Search Results

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

    Radio Network Collection: Computer Technologies and Information Sciences 7 Edge Node to Remote Node Topology Optimization in the Summary: by optimally deciding the number radio...

  17. Design Considerations for a Heterogeneous Network of Bearings-only Sensors using Sensor Management

    E-Print Network [OSTI]

    Cevher, Volkan

    College Park, MD 20742 Abstract--This paper presents the design characterization of a heterogeneous sensor data with other nodes, a microprocessor to process and fuse data into information and a battery and replenish batteries. Therefore, the nodes must operate under severe energy constraints to maintain a long

  18. Energy Management for Time-Critical Energy Harvesting Wireless Sensor Networks

    E-Print Network [OSTI]

    Aydin, Hakan

    -based architecture to dynamically adjust CPU frequencies and radio transmit speeds of sensor nodes, hence regulate such as solar, wind or wa- ter flow, WSN nodes potentially have perpetual energy supply. However, given technique saves computation energy by simultaneously reducing CPU supply voltage and frequency. The DMS

  19. Finding the best root node strategy for the approximation of the time ...

    E-Print Network [OSTI]

    2006-11-19T23:59:59.000Z

    Abstract—We identify the best root node strategy for the ap- proximation of the .... In practice, these .... even though we also manually applied row transformations to ..... [10] E. L. Lawler, On scheduling problems with deferral costs, Management.

  20. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 17, NO. 4, APRIL 1999 689 The Rapidly Deployable Radio Network

    E-Print Network [OSTI]

    Kansas, University of

    , and mobile node management. This paper describes the architecture for the Rapidly Deployable Radio Network for implementing mobile, rapidly deployable, and adaptive wireless communica- tions systems. The driving and a prototype system built to evaluate key system components. Index Terms-- Adaptive protocols, mobile

  1. UNBC Access Grid Node Instructions Access Grid Node

    E-Print Network [OSTI]

    Northern British Columbia, University of

    packages have been installed on the system: Windows 7 IG client software called IGMeeting Microsoft Office.ace-net.ca" then right-click the green "IG" icon in the left-hand side of the screen to open "IG Node Configuration the meeting. Click OK to save the settings. 6. Right-click the blue "IG" icon in the bottom right-hand corner

  2. Controlling data transfers from an origin compute node to a target compute node

    DOE Patents [OSTI]

    Archer, Charles J. (Rochester, MN); Blocksome, Michael A. (Rochester, MN); Ratterman, Joseph D. (Rochester, MN); Smith, Brian E. (Rochester, MN)

    2011-06-21T23:59:59.000Z

    Methods, apparatus, and products are disclosed for controlling data transfers from an origin compute node to a target compute node that include: receiving, by an application messaging module on the target compute node, an indication of a data transfer from an origin compute node to the target compute node; and administering, by the application messaging module on the target compute node, the data transfer using one or more messaging primitives of a system messaging module in dependence upon the indication.

  3. SiNode Systems | Department of Energy

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

    University SiNode Systems is a battery materials venture developing silicon-graphene anodes for the next generation of lithium-ion batteries. SiNode anodes offer higher...

  4. Trust and Independence Aware Decision Fusion in Distributed Networks

    E-Print Network [OSTI]

    California at Davis, University of

    -hop network scenario: a set of mobile or stationary nodes trying to monitor certain targets (objects, people

  5. Enhancing video transmission in MANETs utilizing multiple interfaces and multiple channels per node

    E-Print Network [OSTI]

    Bouras, Christos

    . Simulation results indicate that the mechanism improves the networks capacity for video transmissionEnhancing video transmission in MANETs utilizing multiple interfaces and multiple channels per node}@cti.gr, gkamas@aeavellas.gr {politaki, tsanai}@ceid.upatras.gr Abstract. Mobile Ad hoc NETworks (MANETs

  6. 228 IEEE/ACM TRANSACTIONS ON NETWORKING, VOL. 7, NO. 2, APRIL 1999 Ad Hoc Mobility Management with

    E-Print Network [OSTI]

    Haas, Zygmunt J.

    the construction of UQS through the balanced incomplete block designs. The average cost, due to call loss is sometimes necessary to reduce the cost of mobility management. Index Terms--Ad hoc network, balanced on the average cost, we investigate the tradeoff between the system reliability and the cost of location updates

  7. advocates network wepan: Topics by E-print Network

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

    characteristics because the nodes that contribute to the least-time consumption of free energy preferably attach to each other. Network evolution is a path-dependent and...

  8. Global tree network for computing structures enabling global processing operations

    DOE Patents [OSTI]

    Blumrich; Matthias A. (Ridgefield, CT); Chen, Dong (Croton-On-Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Hoenicke, Dirk (Ossining, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Takken, Todd E. (Mount Kisco, NY); Vranas, Pavlos M. (Bedford Hills, NY)

    2010-01-19T23:59:59.000Z

    A system and method for enabling high-speed, low-latency global tree network communications among processing nodes interconnected according to a tree network structure. The global tree network enables collective reduction operations to be performed during parallel algorithm operations executing in a computer structure having a plurality of the interconnected processing nodes. Router devices are included that interconnect the nodes of the tree via links to facilitate performance of low-latency global processing operations at nodes of the virtual tree and sub-tree structures. The global operations performed include one or more of: broadcast operations downstream from a root node to leaf nodes of a virtual tree, reduction operations upstream from leaf nodes to the root node in the virtual tree, and point-to-point message passing from any node to the root node. The global tree network is configurable to provide global barrier and interrupt functionality in asynchronous or synchronized manner, and, is physically and logically partitionable.

  9. Message communications of particular message types between compute nodes using DMA shadow buffers

    DOE Patents [OSTI]

    Blocksome, Michael A. (Rochester, MN); Parker, Jeffrey J. (Rochester, MN)

    2010-11-16T23:59:59.000Z

    Message communications of particular message types between compute nodes using DMA shadow buffers includes: receiving a buffer identifier specifying an application buffer having a message of a particular type for transmission to a target compute node through a network; selecting one of a plurality of shadow buffers for a DMA engine on the compute node for storing the message, each shadow buffer corresponding to a slot of an injection FIFO buffer maintained by the DMA engine; storing the message in the selected shadow buffer; creating a data descriptor for the message stored in the selected shadow buffer; injecting the data descriptor into the slot of the injection FIFO buffer corresponding to the selected shadow buffer; selecting the data descriptor from the injection FIFO buffer; and transmitting the message specified by the selected data descriptor through the data communications network to the target compute node.

  10. Dedicated heterogeneous node scheduling including backfill scheduling

    DOE Patents [OSTI]

    Wood, Robert R. (Livermore, CA); Eckert, Philip D. (Livermore, CA); Hommes, Gregg (Pleasanton, CA)

    2006-07-25T23:59:59.000Z

    A method and system for job backfill scheduling dedicated heterogeneous nodes in a multi-node computing environment. Heterogeneous nodes are grouped into homogeneous node sub-pools. For each sub-pool, a free node schedule (FNS) is created so that the number of to chart the free nodes over time. For each prioritized job, using the FNS of sub-pools having nodes useable by a particular job, to determine the earliest time range (ETR) capable of running the job. Once determined for a particular job, scheduling the job to run in that ETR. If the ETR determined for a lower priority job (LPJ) has a start time earlier than a higher priority job (HPJ), then the LPJ is scheduled in that ETR if it would not disturb the anticipated start times of any HPJ previously scheduled for a future time. Thus, efficient utilization and throughput of such computing environments may be increased by utilizing resources otherwise remaining idle.

  11. Energy and task management in energy harvesting wireless sensor networks for structural health monitoring

    E-Print Network [OSTI]

    Steck, Jamie Bradley

    2009-01-01T23:59:59.000Z

    Chapter 4. System Energy and Task Management . . 1. System2. Energy and Task Management Algorithms A. Energy3. Energy and Task Management Algorithms A. Energy

  12. Transportation Science and the Dynamics of Critical Infrastructure Networks with

    E-Print Network [OSTI]

    Nagurney, Anna

    Inequalities · A New Network Performance/Efficiency Measure with Applications to Critical Infrastructure, and Energy Networks #12;Components of Common Physical Networks Network System Nodes Links Flows Transportation Intersections, Homes, Workplaces, Airports, Railyards Roads, Airline Routes, Railroad Track

  13. Dynamic Networks: Recent Results and Applications

    E-Print Network [OSTI]

    Nagurney, Anna

    . #12;Duke Energy Gas Pipeline Network #12;Components of Common Physical Networks Network System Nodes, Railroad Track Automobiles, Trains, and Planes, Manufacturing and logistics Workstations, Distribution Exchanges Fiber Optic Cables Radio Links Voice, Data, Video Energy Pumping Stations, Plants Pipelines

  14. PROCEEDINGS OF THE FIFTH BERKELEY WORKSHOP ON DISTRIBUTED DATA MANAGEMENT AND COMPUTER NETWORKS

    E-Print Network [OSTI]

    Johnson, R.R.

    2011-01-01T23:59:59.000Z

    assignment problem for general networks. Their lolution techniques enen- tially reduce to linear programming

  15. Nodes, modes and flow codes

    SciTech Connect (OSTI)

    Karniadakis, G.E.; Orszag, S.A. (Princeton Univ., NJ (United States))

    1993-03-01T23:59:59.000Z

    Computational fluid dynamics and the numerical prediction of fluid flow in the understanding and modeling of turbulence is discussed with emphasis on the development of direct numerical simulation (DNS) of high-Reynolds number turbulent flows. Recent advances in computer systems and their use in turbulence simulation are reviewed and the need for parallel processing to achieve teraflop speeds necessary for DNS is discussed. Computer system architectures, nodes, and parallel computers currently in use are reviewed. Spectral, spectral-element, particle, and hybrid difference methods of solving incompressible- and compressible-flow problems are examined. Four applications of parallel computers to turbulent flow problems are presented and future developments in computer systems are discussed. 24 refs.

  16. Efficient implementation of multidimensional fast fourier transform on a distributed-memory parallel multi-node computer

    DOE Patents [OSTI]

    Bhanot, Gyan V. (Princeton, NJ); Chen, Dong (Croton-On-Hudson, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Vranas, Pavlos M. (Bedford Hills, NY)

    2012-01-10T23:59:59.000Z

    The present in invention is directed to a method, system and program storage device for efficiently implementing a multidimensional Fast Fourier Transform (FFT) of a multidimensional array comprising a plurality of elements initially distributed in a multi-node computer system comprising a plurality of nodes in communication over a network, comprising: distributing the plurality of elements of the array in a first dimension across the plurality of nodes of the computer system over the network to facilitate a first one-dimensional FFT; performing the first one-dimensional FFT on the elements of the array distributed at each node in the first dimension; re-distributing the one-dimensional FFT-transformed elements at each node in a second dimension via "all-to-all" distribution in random order across other nodes of the computer system over the network; and performing a second one-dimensional FFT on elements of the array re-distributed at each node in the second dimension, wherein the random order facilitates efficient utilization of the network thereby efficiently implementing the multidimensional FFT. The "all-to-all" re-distribution of array elements is further efficiently implemented in applications other than the multidimensional FFT on the distributed-memory parallel supercomputer.

  17. Efficient implementation of a multidimensional fast fourier transform on a distributed-memory parallel multi-node computer

    DOE Patents [OSTI]

    Bhanot, Gyan V. (Princeton, NJ); Chen, Dong (Croton-On-Hudson, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Vranas, Pavlos M. (Bedford Hills, NY)

    2008-01-01T23:59:59.000Z

    The present in invention is directed to a method, system and program storage device for efficiently implementing a multidimensional Fast Fourier Transform (FFT) of a multidimensional array comprising a plurality of elements initially distributed in a multi-node computer system comprising a plurality of nodes in communication over a network, comprising: distributing the plurality of elements of the array in a first dimension across the plurality of nodes of the computer system over the network to facilitate a first one-dimensional FFT; performing the first one-dimensional FFT on the elements of the array distributed at each node in the first dimension; re-distributing the one-dimensional FFT-transformed elements at each node in a second dimension via "all-to-all" distribution in random order across other nodes of the computer system over the network; and performing a second one-dimensional FFT on elements of the array re-distributed at each node in the second dimension, wherein the random order facilitates efficient utilization of the network thereby efficiently implementing the multidimensional FFT. The "all-to-all" re-distribution of array elements is further efficiently implemented in applications other than the multidimensional FFT on the distributed-memory parallel supercomputer.

  18. Optimizing Cluster Heads for Energy Efficiency in Large-Scale Heterogeneous Wireless Sensor Networks

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

    Gu, Yi; Wu, Qishi; Rao, Nageswara S. V.

    2010-01-01T23:59:59.000Z

    Many complex sensor network applications require deploying a large number of inexpensive and small sensors in a vast geographical region to achieve quality through quantity. Hierarchical clustering is generally considered as an efficient and scalable way to facilitate the management and operation of such large-scale networks and minimize the total energy consumption for prolonged lifetime. Judicious selection of cluster heads for data integration and communication is critical to the success of applications based on hierarchical sensor networks organized as layered clusters. We investigate the problem of selecting sensor nodes in a predeployed sensor network to be the cluster heads tomore »minimize the total energy needed for data gathering. We rigorously derive an analytical formula to optimize the number of cluster heads in sensor networks under uniform node distribution, and propose a Distance-based Crowdedness Clustering algorithm to determine the cluster heads in sensor networks under general node distribution. The results from an extensive set of experiments on a large number of simulated sensor networks illustrate the performance superiority of the proposed solution over the clustering schemes based onk-means algorithm.« less

  19. Managing Errors to Reduce Accidents in High Consequence Networked Information Systems

    SciTech Connect (OSTI)

    Ganter, J.H.

    1999-02-01T23:59:59.000Z

    Computers have always helped to amplify and propagate errors made by people. The emergence of Networked Information Systems (NISs), which allow people and systems to quickly interact worldwide, has made understanding and minimizing human error more critical. This paper applies concepts from system safety to analyze how hazards (from hackers to power disruptions) penetrate NIS defenses (e.g., firewalls and operating systems) to cause accidents. Such events usually result from both active, easily identified failures and more subtle latent conditions that have resided in the system for long periods. Both active failures and latent conditions result from human errors. We classify these into several types (slips, lapses, mistakes, etc.) and provide NIS examples of how they occur. Next we examine error minimization throughout the NIS lifecycle, from design through operation to reengineering. At each stage, steps can be taken to minimize the occurrence and effects of human errors. These include defensive design philosophies, architectural patterns to guide developers, and collaborative design that incorporates operational experiences and surprises into design efforts. We conclude by looking at three aspects of NISs that will cause continuing challenges in error and accident management: immaturity of the industry, limited risk perception, and resource tradeoffs.

  20. Random Walks and Electrical Networks Electrical Network

    E-Print Network [OSTI]

    Jonathon Peterson

    2008-01-30T23:59:59.000Z

    Feb 4, 2008 ... Random Walks and Electrical Networks. Hitting Probabilities and Voltage. Voltage. Connect a 1V battery to nodes a and b. ix,y is the current ...

  1. Trends in Energy Management Technology: BCS Integration Technologies - Open Communications Networking

    E-Print Network [OSTI]

    Webster, Tom

    2002-01-01T23:59:59.000Z

    223. Trends in Energy Management Technology CBE/UC BerkeleyTrends in Energy Management Technology CBE/UC Berkeley FEMP/p. 6. Trends in Energy Management Technology CBE/UC Berkeley

  2. Analyzing Network-Wide Interactions Using Graphs: Techniques and Applications

    E-Print Network [OSTI]

    Iliofotou, Marios

    2011-01-01T23:59:59.000Z

    IP networks. They enable network administrators to gain in-Network Managment Network Administrator Figure 1.1: Basica valuable tool for network administrators to detect

  3. Resetting Bounding Nodes in Acquiring Spanish

    E-Print Network [OSTI]

    Cebreiros, Ramiro

    1996-01-01T23:59:59.000Z

    This paper addresses the issue of whether L2 learners can reset parameters, by testing English speakers learning Spanish on their ability to reset the bounding node parameter. The bounding nodes are : IP and NP in English, CP and NP in Spanish...

  4. MIRAGE: A Management Tool for the Analysis and Deployment of Network Security Policies

    E-Print Network [OSTI]

    Garcia-Alfaro, Joaquin

    of configuration policies over network security components, such as firewalls, intrusion detection systems, and VPN the advances in the field of network security technologies, such as filtering of traffic, use of encrypted be exploited by unauthorized parties. The use of firewalls, NIDSs (network intrusion detection systems

  5. Hybrid Sensor Networks: A Small World Gaurav Sharma

    E-Print Network [OSTI]

    Mazumdar, Ravi R.

    wires to a wireless sensor network can not only reduce the average energy expenditure per sensor node, but also the non-uniformity in the energy expenditure across the sensor nodes. Categories and Subject the average hop count of the network, resulting in a reduced energy dissipa- tion per node. We also show

  6. Dense LU Factorization on Multicore Supercomputer Nodes

    SciTech Connect (OSTI)

    Lifflander, Jonathan [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Miller, Phil [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Venkataraman, Ramprasad [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Arya, Anshu [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Jones, Terry R [ORNL] [ORNL; Kale, Laxmikant V [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign

    2012-01-01T23:59:59.000Z

    Dense LU factorization is a prominent benchmark used to rank the performance of supercomputers. Many implementations, including the reference code HPL, use block-cyclic distributions of matrix blocks onto a two-dimensional process grid. The process grid dimensions drive a trade-off between communication and computation and are architecture- and implementation-sensitive. We show how the critical panel factorization steps can be made less communication-bound by overlapping asynchronous collectives for pivot identification and exchange with the computation of rank-k updates. By shifting this trade-off, a modified block-cyclic distribution can beneficially exploit more available parallelism on the critical path, and reduce panel factorization's memory hierarchy contention on now-ubiquitous multi-core architectures. The missed parallelism in traditional block-cyclic distributions arises because active panel factorization, triangular solves, and subsequent broadcasts are spread over single process columns or rows (respectively) of the process grid. Increasing one dimension of the process grid decreases the number of distinct processes in the other dimension. To increase parallelism in both dimensions, periodic 'rotation' is applied to the process grid to recover the row-parallelism lost by a tall process grid. During active panel factorization, rank-1 updates stream through memory with minimal reuse. In a column-major process grid, the performance of this access pattern degrades as too many streaming processors contend for access to memory. A block-cyclic mapping in the more popular row-major order does not encounter this problem, but consequently sacrifices node and network locality in the critical pivoting steps. We introduce 'striding' to vary between the two extremes of row- and column-major process grids. As a test-bed for further mapping experiments, we describe a dense LU implementation that allows a block distribution to be defined as a general function of block to processor. Other mappings can be tested with only small, local changes to the code.

  7. Node discovery and replacement using mobile Kalypso Magklara1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Node discovery and replacement using mobile robot Kalypso Magklara1 , Dimitrios Zorbas1 and Tahiry, that discovers the nodes around it and replaces the active nodes, whose energy is drained, by fully charged and that decide, which nodes to replace. We simulate our algorithms and our findings show that all nodes that fail

  8. Organization of growing random networks

    SciTech Connect (OSTI)

    Krapivsky, P. L.; Redner, S.

    2001-06-01T23:59:59.000Z

    The organizational development of growing random networks is investigated. These growing networks are built by adding nodes successively, and linking each to an earlier node of degree k with an attachment probability A{sub k}. When A{sub k} grows more slowly than linearly with k, the number of nodes with k links, N{sub k}(t), decays faster than a power law in k, while for A{sub k} growing faster than linearly in k, a single node emerges which connects to nearly all other nodes. When A{sub k} is asymptotically linear, N{sub k}(t){similar_to}tk{sup {minus}{nu}}, with {nu} dependent on details of the attachment probability, but in the range 2{lt}{nu}{lt}{infinity}. The combined age and degree distribution of nodes shows that old nodes typically have a large degree. There is also a significant correlation in the degrees of neighboring nodes, so that nodes of similar degree are more likely to be connected. The size distributions of the in and out components of the network with respect to a given node{emdash}namely, its {open_quotes}descendants{close_quotes} and {open_quotes}ancestors{close_quotes}{emdash}are also determined. The in component exhibits a robust s{sup {minus}2} power-law tail, where s is the component size. The out component has a typical size of order lnt, and it provides basic insights into the genealogy of the network.

  9. Lower bound and an optimal algorithm for leader election in faulty asynchronous general networks

    E-Print Network [OSTI]

    Lateef, Mohammed Afroz

    1993-01-01T23:59:59.000Z

    incident on it, the size of the network, and the ID of the node. Thus a node does not know who its neighbors are and which links are unreliable. We assume that the network is asynchronous i. e. there is no global clock and global memory in the network... the leader is a loser. Each node knows its ID, the number of edges incident on it, and the number of nodes in the network, i. e. ~V) = N. The node does not know which of the links are reliable. The IDs of the uodes are unique and distinct. All the nodes...

  10. EXPERIMENTAL EVALUATION OF SIMULTANEOUS 3D LOCALIZATION OF SENSOR NODES AND TRACKING MOVING TARGETS

    E-Print Network [OSTI]

    Instituto de Sistemas e Robotica

    EXPERIMENTAL EVALUATION OF SIMULTANEOUS 3D LOCALIZATION OF SENSOR NODES AND TRACKING MOVING TARGETS sensor/target localization) which rely on infrared (IR), radio frequency/received signal strength (RF of a simultaneous localization and track- ing (SLAT) algorithm for sensor networks, whose aim is to determine

  11. Ambient-RF-Energy-Harvesting Sensor Node with Capacitor-Leakage-Aware Duty Cycle Control

    E-Print Network [OSTI]

    Tentzeris, Manos

    shortage risk. (2) Adaptive optimal operation point tracking considering harvested energy variability. (3Ambient-RF-Energy-Harvesting Sensor Node with Capacitor-Leakage-Aware Duty Cycle Control Ryo-- In this paper, we present a software control method that maximizes the sensing rate of wireless sensor networks

  12. INTERACTING WITH SOCIAL NETWORKS TO IMPROVE HEALTHCARE BODY SENSOR NETWORKS

    E-Print Network [OSTI]

    Miles, Will

    INTERACTING WITH SOCIAL NETWORKS TO IMPROVE HEALTHCARE BODY SENSOR NETWORKS by DAVID BAUSCHLICHER monitor and record data while minimizing the energy expenditure of nodes in the BSN. Social networking to a social network creates the unique ability to share health related data with other users through social

  13. Privacy-enhanced social network routing in opportunistic networks Iain Parris, Greg Bigwood and Tristan Henderson

    E-Print Network [OSTI]

    Henderson, Tristan

    Privacy-enhanced social network routing in opportunistic networks Iain Parris, Greg Bigwood. Forwarding messages in such a network often involves the use of social network routing-- sending messages via nodes in the sender or recipient's social network. Simple social network routing, however, may broadcast

  14. Capacity and scale-free dynamics of evolving wireless networks 

    E-Print Network [OSTI]

    Iyer, Bharat Vishwanathan

    2005-02-17T23:59:59.000Z

    Many large-scale random graphs (e.g., the Internet) exhibit complex topology, nonhomogeneous spatial node distribution, and preferential attachment of new nodes. Current topology models for ad-hoc networks mostly consider a uniform spatial...

  15. A generative model for feedback networks Douglas R. White

    E-Print Network [OSTI]

    White, Douglas R.

    net- works evolve by either establishing closer connections by adding links to existing nodes outside it, thereby adding a new node and expanding it. Another motivating example is trading networks [2

  16. Generative model for feedback networks Douglas R. White*

    E-Print Network [OSTI]

    White, Douglas R.

    be separated by a given distance in the kinship net- work 1 . Such a marriage establishes a direct tie between node and expanding it. Another motivating example is trading networks 2 . Sup- pose two agents nodes

  17. Opportunistic scheduling in large-scale wireless networks

    E-Print Network [OSTI]

    Modiano, Eytan H.

    In this paper, we consider a distributed one-hop wireless network with n pairs of transmitters and receivers. It is assumed that each transmitter/receiver node is only connected to k receiver/transmitter nodes which are ...

  18. Localization and sensing applications in the Pushpin Computer Network

    E-Print Network [OSTI]

    Broxton, Michael Joseph

    2005-01-01T23:59:59.000Z

    The utility and purpose of a node in a wireless sensor network is intimately tied to the physical space in which it is distributed. As such, it is advantageous under most circumstances for a sensor node to know its position. ...

  19. A congestion control scheme for wireless sensor networks

    E-Print Network [OSTI]

    Xiong, Yunli

    2005-08-29T23:59:59.000Z

    In wireless sensor networks (WSN), nodes have very limited power due to hardware constraints. Packet losses and retransmissions resulting from congestion cost precious energy and shorten the lifetime of sensor nodes. This problem motivates the need...

  20. Capacity and scale-free dynamics of evolving wireless networks

    E-Print Network [OSTI]

    Iyer, Bharat Vishwanathan

    2005-02-17T23:59:59.000Z

    Many large-scale random graphs (e.g., the Internet) exhibit complex topology, nonhomogeneous spatial node distribution, and preferential attachment of new nodes. Current topology models for ad-hoc networks mostly consider a uniform spatial...

  1. MIRAGE: A Management Tool for the Analysis and Deployment of Network Security Policies

    E-Print Network [OSTI]

    Boyer, Edmond

    , such as firewalls, intrusion detection systems, and VPN routers. We review the two main functionalities embedded technologies, such as filter- ing of traffic, use of encrypted communications, and deployment of authentication of firewalls, NIDSs (network intrusion detection systems), and VPN (Virtual Private Network) routers, is still

  2. Signaling completion of a message transfer from an origin compute node to a target compute node

    DOE Patents [OSTI]

    Blocksome, Michael A. (Rochester, MN)

    2011-02-15T23:59:59.000Z

    Signaling completion of a message transfer from an origin node to a target node includes: sending, by an origin DMA engine, an RTS message, the RTS message specifying an application message for transfer to the target node from the origin node; receiving, by the origin DMA engine, a remote get message containing a data descriptor for the message and a completion notification descriptor, the completion notification descriptor specifying a local memory FIFO data transfer operation for transferring data locally on the origin node; inserting, by the origin DMA engine in an injection FIFO buffer, the data descriptor followed by the completion notification descriptor; transferring, by the origin DMA engine to the target node, the message in dependence upon the data descriptor; and notifying, by the origin DMA engine, the application that transfer of the message is complete in dependence upon the completion notification descriptor.

  3. Signaling completion of a message transfer from an origin compute node to a target compute node

    DOE Patents [OSTI]

    Blocksome, Michael A. (Rochester, MN); Parker, Jeffrey J. (Rochester, MN)

    2011-05-24T23:59:59.000Z

    Signaling completion of a message transfer from an origin node to a target node includes: sending, by an origin DMA engine, an RTS message, the RTS message specifying an application message for transfer to the target node from the origin node; receiving, by the origin DMA engine, a remote get message containing a data descriptor for the message and a completion notification descriptor, the completion notification descriptor specifying a local direct put transfer operation for transferring data locally on the origin node; inserting, by the origin DMA engine in an injection FIFO buffer, the data descriptor followed by the completion notification descriptor; transferring, by the origin DMA engine to the target node, the message in dependence upon the data descriptor; and notifying, by the origin DMA engine, the application that transfer of the message is complete in dependence upon the completion notification descriptor.

  4. Dynamically reassigning a connected node to a block of compute nodes for re-launching a failed job

    DOE Patents [OSTI]

    Budnik, Thomas A. (Rochester, MN); Knudson, Brant L. (Rochester, MN); Megerian, Mark G. (Rochester, MN); Miller, Samuel J. (Rochester, MN); Stockdell, William M. (Byron, MN)

    2012-03-20T23:59:59.000Z

    Methods, systems, and products for dynamically reassigning a connected node to a block of compute nodes for re-launching a failed job that include: identifying that a job failed to execute on the block of compute nodes because connectivity failed between a compute node assigned as at least one of the connected nodes for the block of compute nodes and its supporting I/O node; and re-launching the job, including selecting an alternative connected node that is actively coupled for data communications with an active I/O node; and assigning the alternative connected node as the connected node for the block of compute nodes running the re-launched job.

  5. Stable Throughput in a Cognitive Wireless Network

    E-Print Network [OSTI]

    Fanous, Anthony

    2012-01-01T23:59:59.000Z

    We study, from a network layer perspective, the effect of an Ad-Hoc secondary network with N nodes randomly accessing the spectrum licensed to a primary node during the idle slots of the primary user. If the sensing is perfect, then the secondary nodes do not interfere with the primary node and hence do not affect its stable throughput. In case of imperfect sensing, it is shown that if the primary user's arrival rate is less than some calculated finite value, cognitive nodes can employ any transmission power or probabilities without affecting the primary user's stability; otherwise, the secondary nodes should control their transmission parameters to reduce the interference on the primary. It is also shown that in contrast with the primary's maximum stable throughput which strictly decreases with increased sensing errors, the throughput of the secondary nodes might increase with sensing errors as more transmission opportunities become available to them. Finally, we explore the use of the secondary nodes as rel...

  6. Community consistency determines the stability transition window of power-grid nodes

    E-Print Network [OSTI]

    Heetae Kim; Sang Hoon Lee; Petter Holme

    2015-04-28T23:59:59.000Z

    The synchrony of electric power systems is important in order to maintain stable electricity supply. Recently, the measure basin stability was introduced to quantify a node's ability to recover its synchronization when perturbed. In this work, we focus on how basin stability depends on the coupling strength between nodes. We use the Chilean power grid as a case study. In general, basin stability goes from zero to one as coupling strength increases. However, this transition does not happen at the same value for different nodes. By understanding the transition for individual nodes, we can further characterize their role in the power-transmission dynamics. We find that nodes with an exceptionally large transition window also have a low community consistency. In other words, they are hard to classify to one community when applying a community detection algorithm. This also gives an efficient way to identify nodes with a long transition window (which is computationally time consuming). Finally, to corroborate these results, we present a stylized example network with prescribed community structures that captures the mentioned characteristics of basin stability transition and recreates our observations.

  7. Election in complete asynchronous networks with intermittent link failures 

    E-Print Network [OSTI]

    Lokre, Jahnavi V.

    1991-01-01T23:59:59.000Z

    . Initially, no node knows the identifier of any other node. Each node u knows the number of nodes n in the distributed system, the maximum number f of faulty links incident on u, and that the network is complete. A distributed algorithm on a network is a.... The algorithm uses O(n + nf ) messages. We assume that there are at most f faulty links incident on each node, where f & [ "s J. Let I be a link between nodes u and v. By the definition of link failure, link I is considered faulty if I loses at least one...

  8. Extending Participatory Fuzzy Cognitive Mapping with a Control Nodes Methodology: a case study of the development bio-based economy in the

    E-Print Network [OSTI]

    Lloyd, David

    . Keywords Fuzzy cognitive mapping, network analysis, control nodes, partici- patory modelling, steering configurations for the system, from their perspective. Models/Outcomes: Six possible control configurations used to focus decision making and future modelling work. Challenges: Control configurations

  9. aviation risk-management information: Topics by E-print Network

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

    & keep your attention Transportation Sanitation acilities (the environment we work in) UREC RISK MANAGEMENT 12;Potential Risks: User Carter, John 18 Improving...

  10. army aviation risk-management: Topics by E-print Network

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

    inherent in all activity. Dynamic enterprise will inevitably create new risks. Risk management is about ensuring that all significant relevant risks are understood and prioritised...

  11. Epidemic Propagation In Overlaid Wireless Networks

    SciTech Connect (OSTI)

    Yanmaz, Evsen [Los Alamos National Laboratory

    2008-01-01T23:59:59.000Z

    Witb tbe emergence of computer worms tbat can spread over air interfaces, wireless ad boc and sensor networks can be vulnerable to node compromises even if the deployed network is not connected to the backbone. Depending on the physical topology of the wireless network, even a single infected node can compromise the whole network. In this work, epidemic (e.g., worm) propagation in a static wireless network is studied, where a number of inCected mobile nodes are injected over the existing network. It is shown that the epidemic spread threshold and size depend on the physical topology of the underlying static wireless network as well as the mobility model employed by the infected mobile nodes. More specifically, results show that in a Cully-connected static wirelessnctwork targeted attacks are more effective, wbereas Cor a random topology random attacks can be sufficient to compromise the whole network.

  12. Electrical Power Savings in Pump and Compressor Networks via Load Management

    E-Print Network [OSTI]

    Kumana, J. D.; Aseeri, A. S.

    2005-01-01T23:59:59.000Z

    Large industrial plants commonly use multiple parallel units in pump and compressor networks for improved reliability. Sometimes, installed equipment capacity can far exceed actual requirements. This excess capacity can be translated into energy...

  13. A real options approach to manage flexible contracts in the telecommunication networking industry

    E-Print Network [OSTI]

    Tay, Ee Learn, 1968-

    2004-01-01T23:59:59.000Z

    One of the biggest challenges facing Original Equipment Manufacturers (OEMs) and Electronic Manufacturing Services (EMS) providers in the telecommunication networking industry is to predict the spending patterns of the ...

  14. Strategic management for large engineering projects : the stakeholder value network approach

    E-Print Network [OSTI]

    Feng, Wen, Ph. D. Massachusetts Institute of Technology

    2013-01-01T23:59:59.000Z

    A critical element of the challenges and opportunities for today's large engineering projects are associated with the multi-type and networked relationships between these projects and their various stakeholders. This ...

  15. Journal of Network and Systems Management ( c 2007) DOI: 10.1007/s10922-007-9062-0

    E-Print Network [OSTI]

    Han, Qi "Chee"

    tolerant techniques to support sensor applications. We also discuss several interesting open research-sensor nodes (e.g., Mica motes from Crossbow, Tmote Sky from Moteiv, the MKII nodes from UCLA, SunSpot from Sun of Mines, Golden, CO 80401. 2 To whom correspondence should be addressed at Department of Mathematical

  16. Locating hardware faults in a data communications network of a parallel computer

    DOE Patents [OSTI]

    Archer, Charles J. (Rochester, MN); Megerian, Mark G. (Rochester, MN); Ratterman, Joseph D. (Rochester, MN); Smith, Brian E. (Rochester, MN)

    2010-01-12T23:59:59.000Z

    Hardware faults location in a data communications network of a parallel computer. Such a parallel computer includes a plurality of compute nodes and a data communications network that couples the compute nodes for data communications and organizes the compute node as a tree. Locating hardware faults includes identifying a next compute node as a parent node and a root of a parent test tree, identifying for each child compute node of the parent node a child test tree having the child compute node as root, running a same test suite on the parent test tree and each child test tree, and identifying the parent compute node as having a defective link connected from the parent compute node to a child compute node if the test suite fails on the parent test tree and succeeds on all the child test trees.

  17. Proceedings of the sixth Berkeley workshop on distributed data management and computer networks

    SciTech Connect (OSTI)

    Various Authors

    1982-01-01T23:59:59.000Z

    A distributed data base management system allows data to be stored at multiple locations and to be accessed as a single unified data base. In this workshop, seventeen papers were presented which have been prepared separately for the energy data base. These items deal with data transfer, protocols and management. (GHT)

  18. IMPLEMENTATION OF TEAN-SLEEP FOR WIRELESS SENSOR NETWORKS Jesus Jaquez, David Valencia, Manikanden Balakrishnan,

    E-Print Network [OSTI]

    Johnson, Eric E.

    , storage but most importantly in energy. When a node's energy is exhausted, the node can no longer provide. A node is able to save energy while idle by sleeping. Topology and Energy Adaptive, Non-synchronous (TEAN) sleep provides the nodes in a network a mechanism to save energy by sleeping while also keeping

  19. Maximizing the Number of Broadcast Operations in Random Geometric Ad-Hoc Wireless Networks

    E-Print Network [OSTI]

    Calamoneri, Tiziana

    static ad-hoc wireless networks whose nodes, equipped with the same initial battery charge, may dynamically change their transmission range. When a node v transmits with range r(v), its battery charge of a node depends, in turn, on the energy power supplied to the node. In particular, the power Pv required

  20. Collective network for computer structures

    DOE Patents [OSTI]

    Blumrich, Matthias A; Coteus, Paul W; Chen, Dong; Gara, Alan; Giampapa, Mark E; Heidelberger, Philip; Hoenicke, Dirk; Takken, Todd E; Steinmacher-Burow, Burkhard D; Vranas, Pavlos M

    2014-01-07T23:59:59.000Z

    A system and method for enabling high-speed, low-latency global collective communications among interconnected processing nodes. The global collective network optimally enables collective reduction operations to be performed during parallel algorithm operations executing in a computer structure having a plurality of the interconnected processing nodes. Router devices are included that interconnect the nodes of the network via links to facilitate performance of low-latency global processing operations at nodes of the virtual network. The global collective network may be configured to provide global barrier and interrupt functionality in asynchronous or synchronized manner. When implemented in a massively-parallel supercomputing structure, the global collective network is physically and logically partitionable according to the needs of a processing algorithm.

  1. Clock Agreement Among Parallel Supercomputer Nodes

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

    Jones, Terry R.; Koenig, Gregory A.

    This dataset presents measurements that quantify the clock synchronization time-agreement characteristics among several high performance computers including the current world's most powerful machine for open science, the U.S. Department of Energy's Titan machine sited at Oak Ridge National Laboratory. These ultra-fast machines derive much of their computational capability from extreme node counts (over 18000 nodes in the case of the Titan machine). Time-agreement is commonly utilized by parallel programming applications and tools, distributed programming application and tools, and system software. Our time-agreement measurements detail the degree of time variance between nodes and how that variance changes over time. The dataset includes empirical measurements and the accompanying spreadsheets.

  2. Clock Agreement Among Parallel Supercomputer Nodes

    SciTech Connect (OSTI)

    Jones, Terry R.; Koenig, Gregory A.

    2014-04-30T23:59:59.000Z

    This dataset presents measurements that quantify the clock synchronization time-agreement characteristics among several high performance computers including the current world's most powerful machine for open science, the U.S. Department of Energy's Titan machine sited at Oak Ridge National Laboratory. These ultra-fast machines derive much of their computational capability from extreme node counts (over 18000 nodes in the case of the Titan machine). Time-agreement is commonly utilized by parallel programming applications and tools, distributed programming application and tools, and system software. Our time-agreement measurements detail the degree of time variance between nodes and how that variance changes over time. The dataset includes empirical measurements and the accompanying spreadsheets.

  3. Distributed services for mobile ad hoc networks

    E-Print Network [OSTI]

    Cao, Guangtong

    2005-11-01T23:59:59.000Z

    A mobile ad hoc network consists of certain nodes that communicate only through wireless medium and can move arbitrarily. The key feature of a mobile ad hoc network is the mobility of the nodes. Because of the mobility, communication links form...

  4. 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

  5. Electricity generation with looped transmission networks: Bidding to an ISO

    E-Print Network [OSTI]

    Ferris, Michael C.

    on a transmission network from net generation nodes to net consumption nodes is governed by the Kirchoff Laws [45Electricity generation with looped transmission networks: Bidding to an ISO Xinmin Hu Daniel Ralph to model markets for delivery of electrical power on looped transmission networks. It analyzes

  6. Position Estimation With Moving Beacons in Wireless Sensor Networks

    E-Print Network [OSTI]

    Dong, Liang

    Position Estimation With Moving Beacons in Wireless Sensor Networks Liang Dong and Frank L nodes in a wireless sensor network. Without GPS capability on any of the sensors, the position issue in wireless sensor networks. Accurate positions of sensor nodes improve the routing efficiency

  7. On the Throughput Capacity of Heterogeneous Wireless Networks

    E-Print Network [OSTI]

    Latchman, Haniph A.

    On the Throughput Capacity of Heterogeneous Wireless Networks Pan Li, Member, IEEE, and Yuguang of wireless networks. However, it is commonly assumed that all nodes in the network are identical. The issue of heterogeneous wireless networks with general network settings. Specifically, we consider an extended network

  8. The two faces of network dynamics Evolving network models describe the dynamics (assembly, evolution)

    E-Print Network [OSTI]

    Albert, Réka

    with a random network with a given degree distribution P(k). Mark edges with probability T. DisregardThe two faces of network dynamics Evolving network models describe the dynamics (assembly, evolution) OF networks by the addition/removal of nodes and edges. It is possible to have network dynamics

  9. Bridging the Gap between Network and Project Selection Levels in Pavement Management

    E-Print Network [OSTI]

    Gurganus, Charles Felder

    2011-08-08T23:59:59.000Z

    Pavement management is one of the primary responsibilities for departments of transportation and other municipalities across the country. Efficient and proper use of taxpayer dollars to preserve and improve the existing transportation system has...

  10. A Mesh-based Robust Topology Discovery Algorithm for Hybrid Wireless Networks

    E-Print Network [OSTI]

    Birman, Kenneth P.

    A Mesh-based Robust Topology Discovery Algorithm for Hybrid Wireless Networks Ranveer CHANDRA¢ @research.att.com Abstract Wireless networks in home, office and sensor applications consist of nodes by a wireline network. Topology information of the wireless network at these powerful nodes can be used

  11. Fault-tolerant Sensor Network based on Fault Evaluation Matrix and Compensation for Intermittent Observation

    E-Print Network [OSTI]

    Fault-tolerant Sensor Network based on Fault Evaluation Matrix and Compensation for Intermittent-tolerant sensor network configuration problem for a target navigation. A sensor network system consists of many sensor nodes and its network connections. Each sensor node can exchange information by wireless

  12. Title: Networking the Cloud: Enabling Enterprise Computing and Storage Cloud computing has been changing how enterprises run and manage their IT systems. Cloud

    E-Print Network [OSTI]

    Title: Networking the Cloud: Enabling Enterprise Computing and Storage Abstract: Cloud computing has been changing how enterprises run and manage their IT systems. Cloud computing platforms provide introduction on Cloud Computing. We propose a Virtual Cloud Pool abstraction to logically unify cloud

  13. Information Capacity of Energy Harvesting Sensor Nodes

    E-Print Network [OSTI]

    Sharma, Vinod

    energy. Harvesting solar energy through photo- voltaic effect seems to have emerged as a technology device may be such that the energy cannot be generated at all times (e.g., a solar cell). Furthermore powers the sensor node and when sufficient energy This work is partially supported by a grant from ANRC

  14. Robust Critical Node Selection by Benders Decomposition

    E-Print Network [OSTI]

    2014-01-28T23:59:59.000Z

    critical node selection problem, we define the following decision variables ..... method to generate Pareto-optimal cuts thus achieving very good speed-ups compared to ... Barabási-Albert graphs generated using the Barabási graph generator (Dreier, 2006). ...... Computers & Operations Research, 38(12):1766 – 1774, 2011.

  15. Lightweight Remote Image Management for Secure Code Dissemination in Wireless Sensor Networks

    E-Print Network [OSTI]

    Ning, Peng

    , all as security extensions to the state-of-the- art code dissemination system named Deluge. However with Seluge, a security extension to Deluge for injecting new code images. We perform a substantial set], [12], [15], [21], [23], [24] have been proposed for wireless sensor networks. Deluge [12] is generally

  16. Designing Satellite Communication Networks by Zero-One Quadratic Programming

    E-Print Network [OSTI]

    Helme, Marcia P.

    In satellite communications networks, distinctive facilities called homing stations perform special transmission functions. Local demand nodes clustered around each homing station communicate with each other via a local ...

  17. access design considerations: Topics by E-print Network

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

    for a Large-Scale Wireless Sensor Network for Substation Monitoring Asis such as transformers, circuit break- ers, and compressors. All nodes communicate over a multihop...

  18. A No-go theorem for Poincaré-invariant networks

    E-Print Network [OSTI]

    Sabine Hossenfelder

    2015-04-23T23:59:59.000Z

    I explain why there are no Poincar\\'e-invariant networks with a locally finite distribution of nodes in Minkowski-spacetime of any dimension.

  19. Towards Data-Driven Declarative Networking in Delay Tolerant Networks

    E-Print Network [OSTI]

    Tucci, Sara

    .lastname}@cl.cam.ac.uk ABSTRACT A Delay Tolerant Network (DTN) provides content storage as a core network service across The Internet has transformed the way we seek information, but it requires strong connectivity with no tolerance are sparsely distributed so that networks are often partitioned due to geographical separation or node movement

  20. Line-plane broadcasting in a data communications network of a parallel computer

    DOE Patents [OSTI]

    Archer, Charles J. (Rochester, MN); Berg, Jeremy E. (Rochester, MN); Blocksome, Michael A. (Rochester, MN); Smith, Brian E. (Rochester, MN)

    2010-11-23T23:59:59.000Z

    Methods, apparatus, and products are disclosed for line-plane broadcasting in a data communications network of a parallel computer, the parallel computer comprising a plurality of compute nodes connected together through the network, the network optimized for point to point data communications and characterized by at least a first dimension, a second dimension, and a third dimension, that include: initiating, by a broadcasting compute node, a broadcast operation, including sending a message to all of the compute nodes along an axis of the first dimension for the network; sending, by each compute node along the axis of the first dimension, the message to all of the compute nodes along an axis of the second dimension for the network; and sending, by each compute node along the axis of the second dimension, the message to all of the compute nodes along an axis of the third dimension for the network.

  1. Line-plane broadcasting in a data communications network of a parallel computer

    DOE Patents [OSTI]

    Archer, Charles J.; Berg, Jeremy E.; Blocksome, Michael A.; Smith, Brian E.

    2010-06-08T23:59:59.000Z

    Methods, apparatus, and products are disclosed for line-plane broadcasting in a data communications network of a parallel computer, the parallel computer comprising a plurality of compute nodes connected together through the network, the network optimized for point to point data communications and characterized by at least a first dimension, a second dimension, and a third dimension, that include: initiating, by a broadcasting compute node, a broadcast operation, including sending a message to all of the compute nodes along an axis of the first dimension for the network; sending, by each compute node along the axis of the first dimension, the message to all of the compute nodes along an axis of the second dimension for the network; and sending, by each compute node along the axis of the second dimension, the message to all of the compute nodes along an axis of the third dimension for the network.

  2. Switch for serial or parallel communication networks

    DOE Patents [OSTI]

    Crosette, Dario B. (DeSoto, TX)

    1994-01-01T23:59:59.000Z

    A communication switch apparatus and a method for use in a geographically extensive serial, parallel or hybrid communication network linking a multi-processor or parallel processing system has a very low software processing overhead in order to accommodate random burst of high density data. Associated with each processor is a communication switch. A data source and a data destination, a sensor suite or robot for example, may also be associated with a switch. The configuration of the switches in the network are coordinated through a master processor node and depends on the operational phase of the multi-processor network: data acquisition, data processing, and data exchange. The master processor node passes information on the state to be assumed by each switch to the processor node associated with the switch. The processor node then operates a series of multi-state switches internal to each communication switch. The communication switch does not parse and interpret communication protocol and message routing information. During a data acquisition phase, the communication switch couples sensors producing data to the processor node associated with the switch, to a downlink destination on the communications network, or to both. It also may couple an uplink data source to its processor node. During the data exchange phase, the switch couples its processor node or an uplink data source to a downlink destination (which may include a processor node or a robot), or couples an uplink source to its processor node and its processor node to a downlink destination.

  3. Switch for serial or parallel communication networks

    DOE Patents [OSTI]

    Crosette, D.B.

    1994-07-19T23:59:59.000Z

    A communication switch apparatus and a method for use in a geographically extensive serial, parallel or hybrid communication network linking a multi-processor or parallel processing system has a very low software processing overhead in order to accommodate random burst of high density data. Associated with each processor is a communication switch. A data source and a data destination, a sensor suite or robot for example, may also be associated with a switch. The configuration of the switches in the network are coordinated through a master processor node and depends on the operational phase of the multi-processor network: data acquisition, data processing, and data exchange. The master processor node passes information on the state to be assumed by each switch to the processor node associated with the switch. The processor node then operates a series of multi-state switches internal to each communication switch. The communication switch does not parse and interpret communication protocol and message routing information. During a data acquisition phase, the communication switch couples sensors producing data to the processor node associated with the switch, to a downlink destination on the communications network, or to both. It also may couple an uplink data source to its processor node. During the data exchange phase, the switch couples its processor node or an uplink data source to a downlink destination (which may include a processor node or a robot), or couples an uplink source to its processor node and its processor node to a downlink destination. 9 figs.

  4. Wireless Networks 6 (2000) 263277 263 Application-driven power management for mobile communication

    E-Print Network [OSTI]

    Han, Richard Y.

    2000-01-01T23:59:59.000Z

    consumed by the communication. For a high-end laptop, this can translate to 6­9% savings in the energy to be properly managed to conserve energy. In this paper, we present the design and implementation of an innovative transport level protocol capable of significantly reducing the power usage of the communication

  5. New Public Management, Network Governance and the university as a changing professional organization

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Management (NPM) rhetoric and narratives. These reform processes were accelerated by the central role NPM reforms that have been commonly implemented in Europe. First, market-based reforms have flourished of NPM, one will observe that other conceptions influenced higher education reforms over the same period

  6. Dynamic Optimization in Gas Pipeline Networks EWO MEETING, Spring 2012

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    (z,t) and q(z,t) Momentum Balance: Material Balance: Network Inventory: Node equations Flow balance-based ROMeo platform. ROMeo: Rigorous On-line Modeling and Equation-based Optimization Model will provide: no accumulation at nodes. Pressure balance: pressure at a node is equal to the pressure either into or out

  7. Parallel processing data network of master and slave transputers controlled by a serial control network

    DOE Patents [OSTI]

    Crosetto, Dario B. (DeSoto, TX)

    1996-01-01T23:59:59.000Z

    The present device provides for a dynamically configurable communication network having a multi-processor parallel processing system having a serial communication network and a high speed parallel communication network. The serial communication network is used to disseminate commands from a master processor (100) to a plurality of slave processors (200) to effect communication protocol, to control transmission of high density data among nodes and to monitor each slave processor's status. The high speed parallel processing network is used to effect the transmission of high density data among nodes in the parallel processing system. Each node comprises a transputer (104), a digital signal processor (114), a parallel transfer controller (106), and two three-port memory devices. A communication switch (108) within each node (100) connects it to a fast parallel hardware channel (70) through which all high density data arrives or leaves the node.

  8. Estimation of clock parameters and performance benchmarks for synchronization in wireless sensor networks

    E-Print Network [OSTI]

    Chaudhari, Qasim Mahmood

    2009-05-15T23:59:59.000Z

    . This dissertation focuses on deriving e±cient estimators for the clock parameters of the network nodes for synchronization with the reference node and the estimators variance thresholds are obtained to lower bound the maximum achievable performance. For any general...

  9. Using social network and stakeholder analysis to help evaluate infectious waste management: A step towards a holistic assessment

    SciTech Connect (OSTI)

    Caniato, Marco, E-mail: marcocaniato@gmail.com [University of Brescia, Research Centre on Appropriate Technologies for Environmental Management in Developing Countries (CeTAmb), Via Branze, 43, 25123 Brescia (Italy); Vaccari, Mentore, E-mail: mentore.vaccari@unibs.it [University of Brescia, Research Centre on Appropriate Technologies for Environmental Management in Developing Countries (CeTAmb), Via Branze, 43, 25123 Brescia (Italy); Visvanathan, Chettiyappan, E-mail: visu@ait.ac.th [Asian Institute of Technology (AIT), School of Environment, Resources and Development (SERD), P.O. Box 4, Klong Luang, Pathumthani 12120 (Thailand); Zurbrügg, Christian, E-mail: zurbrugg@eawag.ch [University of Brescia, Research Centre on Appropriate Technologies for Environmental Management in Developing Countries (CeTAmb), Via Branze, 43, 25123 Brescia (Italy); Eawag: Swiss Federal Institute of Aquatic Science and Technology, Department of Water and Sanitation in Developing Countries (Sandec), Ueberlandstrasse 133, 8600 Duebendorf (Switzerland)

    2014-05-01T23:59:59.000Z

    Highlights: • Assessment of infectious waste management in Bangkok, in particular incineration. • Integration of social network and stakeholder analysis assessment methods. • Assessment of stakeholder characteristics, role, interaction and communication. • Interviewees self-evaluate their own characteristics and the system. • Non-technical aspects are important for system acceptability, and sustainability. - Abstract: Assessing the strengths and weaknesses of a solid waste management scheme requires an accurate analysis and integration of several determining features. In addition to the technical aspects, any such system shows a complex interaction of actors with varying stakes, decision-making power and influence, as well as a favourable or disabling environment. When capitalizing on the knowledge and experience from a specific case, it is also crucial that experts do not “forget” or underestimate the importance of such social determinants and that they are familiar with the methods and tools to assess them. Social network analysis (SNA) and stakeholder analysis (SA) methods can be successfully applied to better understand actors’ role and actions, analyse driving forces and existing coordination among stakeholders, as well as identify bottlenecks in communication which affect daily operations or strategic planning for the future way forward. SNA and SA, appropriately adjusted for a certain system, can provide a useful integration to methods by assessing other aspects to ensure a comprehensive picture of the situation. This paper describes how to integrate SNA and SA in order to survey a solid waste management system. This paper presents the results of an analysis of On-Nuch infectious waste incinerator in Bangkok, Thailand. Stakeholders were interviewed and asked to prioritize characteristics and relationships which they consider particularly important for system development and success of the scheme. In such a way, a large quantity of information about organization, communication between stakeholders and their perception about operation, environmental and health impact, and potential alternatives for the system was collected in a systematic way. The survey results suggest that stakeholders are generally satisfied with the system operation, though communication should be improved. Moreover, stakeholders should be strategically more involved in system development planning, according to their characteristics, to prevent negative reactions.

  10. Network Coding for Large Scale Content Distribution

    E-Print Network [OSTI]

    Keinan, Alon

    Network Coding for Large Scale Content Distribution IEEE Infocom 2005 Christos Gkantsidis College propose a new scheme for content distribution of large files that is based on network coding. With network coding, each node of the distribution network is able to generate and transmit encoded blocks

  11. Integrating Correlated Bayesian Networks Using Maximum Entropy

    SciTech Connect (OSTI)

    Jarman, Kenneth D.; Whitney, Paul D.

    2011-08-30T23:59:59.000Z

    We consider the problem of generating a joint distribution for a pair of Bayesian networks that preserves the multivariate marginal distribution of each network and satisfies prescribed correlation between pairs of nodes taken from both networks. We derive the maximum entropy distribution for any pair of multivariate random vectors and prescribed correlations and demonstrate numerical results for an example integration of Bayesian networks.

  12. Zone routing in a torus network

    DOE Patents [OSTI]

    Chen, Dong; Heidelberger, Philip; Kumar, Sameer

    2013-01-29T23:59:59.000Z

    A system for routing data in a network comprising a network logic device at a sending node for determining a path between the sending node and a receiving node, wherein the network logic device sets one or more selection bits and one or more hint bits within the data packet, a control register for storing one or more masks, wherein the network logic device uses the one or more selection bits to select a mask from the control register and the network logic device applies the selected mask to the hint bits to restrict routing of the data packet to one or more routing directions for the data packet within the network and selects one of the restricted routing directions from the one or more routing directions and sends the data packet along a link in the selected routing direction toward the receiving node.

  13. atrioventricular node ablation: Topics by E-print Network

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

    is performed in selected patients with a symptomatic premature ventricular complex (PVC) or PVC-induced cardiomyopathy. Ablation of PVC from the His region has a high risk of...

  14. The normalization of meshes and nodes in electrical networks

    E-Print Network [OSTI]

    Johnson, Allen Forrest

    1951-01-01T23:59:59.000Z

    ...........................70 Appendix II. The Current Generator ............ 75 Appendix III. The Timer . . . . . . . . ........ 80 Bibliography ..................................... 82 2 23565839 691 0(6)7 l+5F3i)F 5F7 gF38g7 3u (re.3+( S6( 6uu7g571 53 (3e7 7c5795... .r 5F7 5ra7S,857, SF8gF S6( 6m68+6.+7p 5F7 S,857, F6( 6557ea571 53 i(7 (56916,1 93565839 89 5F3(7 g6(7( SF7,7 5F7 93565839 F6( .7g3e7 (56916,18s71n hF7 93565839 (F3i+1 .7 g+76, 691 g39(8(5795 5F,3i)F3i5n hF7 57,e (ree75,8g6+ 975S3,? 8( i(71 53...

  15. Analyzing and Modeling Encryption Overhead for Sensor Network Nodes

    E-Print Network [OSTI]

    Mueller, Frank

    devices in the field. Limitations in processing power, battery life, communication bandwidth and memory

  16. anchor nodes mission: Topics by E-print Network

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

    influence and the alignment is determined by the structure of the interface between the brush and the pure solvent instead. Harald Lange; Friederike Schmid 2002-05-15 58 Accurate...

  17. Relative Span Weighted Localization of Uncooperative Nodes in Wireless Networks

    E-Print Network [OSTI]

    Barbeau, Michel

    911) provisions [1] as the Federal Communications Commission (FCC) in the U.S. [2] Under Phase II Radio- television Telecommunications Commission (CRTC) to regulate the same wireless En- hanced 911 (E

  18. Information extraction with network centralities : finding rumor sources, measuring influence, and learning community structure

    E-Print Network [OSTI]

    Zaman, Tauhid R

    2011-01-01T23:59:59.000Z

    Network centrality is a function that takes a network graph as input and assigns a score to each node. In this thesis, we investigate the potential of network centralities for addressing inference questions arising in the ...

  19. On strong fault tolerance (or strong Menger-connectivity) of multicomputer networks 

    E-Print Network [OSTI]

    Oh, Eunseuk

    2004-11-15T23:59:59.000Z

    As the size of networks increases continuously, dealing with networks with faulty nodes becomes unavoidable. In this dissertation, we introduce a new measure for network fault tolerance, the strong fault tolerance (or ...

  20. Information Capacity of an Energy Harvesting Sensor Node

    E-Print Network [OSTI]

    Viswanath, Pramod

    practical architectures. Our main result is the characterization of the Shannon capacity. INTRODUCTION Sensor nodes are often deployed for monitoring a random field. These nodes are characterized by limited battery power, computational resources and storage space. Once deployed, the battery

  1. Performing a scatterv operation on a hierarchical tree network optimized for collective operations

    DOE Patents [OSTI]

    Archer, Charles J; Blocksome, Michael A; Ratterman, Joseph D; Smith, Brian E

    2013-10-22T23:59:59.000Z

    Performing a scatterv operation on a hierarchical tree network optimized for collective operations including receiving, by the scatterv module installed on the node, from a nearest neighbor parent above the node a chunk of data having at least a portion of data for the node; maintaining, by the scatterv module installed on the node, the portion of the data for the node; determining, by the scatterv module installed on the node, whether any portions of the data are for a particular nearest neighbor child below the node or one or more other nodes below the particular nearest neighbor child; and sending, by the scatterv module installed on the node, those portions of data to the nearest neighbor child if any portions of the data are for a particular nearest neighbor child below the node or one or more other nodes below the particular nearest neighbor child.

  2. An examination of electronic file transfer between host and microcomputers for the AMPMODNET/AIMNET (Army Material Plan Modernization Network/Acquisition Information Management Network) classified network environment

    SciTech Connect (OSTI)

    Hake, K.A.

    1990-11-01T23:59:59.000Z

    This report presents the results of investigation and testing conducted by Oak Ridge National Laboratory (ORNL) for the Project Manager -- Acquisition Information Management (PM-AIM), and the United States Army Materiel Command Headquarters (HQ-AMC). It concerns the establishment of file transfer capabilities on the Army Materiel Plan Modernization (AMPMOD) classified computer system. The discussion provides a general context for micro-to-mainframe connectivity and focuses specifically upon two possible solutions for file transfer capabilities. The second section of this report contains a statement of the problem to be examined, a brief description of the institutional setting of the investigation, and a concise declaration of purpose. The third section lays a conceptual foundation for micro-to-mainframe connectivity and provides a more detailed description of the AMPMOD computing environment. It gives emphasis to the generalized International Business Machines, Inc. (IBM) standard of connectivity because of the predominance of this vendor in the AMPMOD computing environment. The fourth section discusses two test cases as possible solutions for file transfer. The first solution used is the IBM 3270 Control Program telecommunications and terminal emulation software. A version of this software was available on all the IBM Tempest Personal Computer 3s. The second solution used is Distributed Office Support System host electronic mail software with Personal Services/Personal Computer microcomputer e-mail software running with IBM 3270 Workstation Program for terminal emulation. Test conditions and results are presented for both test cases. The fifth section provides a summary of findings for the two possible solutions tested for AMPMOD file transfer. The report concludes with observations on current AMPMOD understanding of file transfer and includes recommendations for future consideration by the sponsor.

  3. Efficient and Fair Routing for Mesh Networks - Optimization Online

    E-Print Network [OSTI]

    2010-02-08T23:59:59.000Z

    Apr 16, 2009 ... its destination. The energy that a laptop spends in retransmissions does not benefit it directly. ... the center of the network are more likely to retransmit while nodes close to the periphery will most ...... Data Networks. Prentice ...

  4. An energy efficient RF transceiver for wireless microsensor networks

    E-Print Network [OSTI]

    Daly, Denis Clarke

    2005-01-01T23:59:59.000Z

    A wireless microsensor network consists of a group of sensor nodes that are deployed remotely and used to relay sensing data to the end-user. Due to their remote deployment, large scale wireless sensor networks require a ...

  5. Dynamic address allocation protocols for Mobile ad hoc networks

    E-Print Network [OSTI]

    Patchipulusu, Praveena

    2001-01-01T23:59:59.000Z

    Address allocation is an important issue in Mobile ad hoc networks. This thesis proposes solutions to assign unique IP addresses to nodes participating in Mobile ad hoc networks and evaluates the proposed solutions. Address allocation protocols...

  6. Progressive Network Coding for Message-Forwarding in Ad-Hoc Wireless Networks

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

    . This paper considers the multi-hop transmission prob- lem in wireless ad-hoc networks. In a three-node sce of multi- hop transmission. The new framework, exploiting the technology of progressive network codingProgressive Network Coding for Message-Forwarding in Ad-Hoc Wireless Networks Xingkai Bao and Jing

  7. On the Access Pricing and Network Scaling Issues of Wireless Mesh Networks

    E-Print Network [OSTI]

    Lui, John C.S.

    1 On the Access Pricing and Network Scaling Issues of Wireless Mesh Networks Ray K. Lam Dah. This paper studies the use of pricing as an incentive mechanism to stimulate participation and collaboration in public wireless mesh networks. Our focus is on the "economic behavior" of the network nodes-- the pricing

  8. Identifying failure in a tree network of a parallel computer

    DOE Patents [OSTI]

    Archer, Charles J. (Rochester, MN); Pinnow, Kurt W. (Rochester, MN); Wallenfelt, Brian P. (Eden Prairie, MN)

    2010-08-24T23:59:59.000Z

    Methods, parallel computers, and products are provided for identifying failure in a tree network of a parallel computer. The parallel computer includes one or more processing sets including an I/O node and a plurality of compute nodes. For each processing set embodiments include selecting a set of test compute nodes, the test compute nodes being a subset of the compute nodes of the processing set; measuring the performance of the I/O node of the processing set; measuring the performance of the selected set of test compute nodes; calculating a current test value in dependence upon the measured performance of the I/O node of the processing set, the measured performance of the set of test compute nodes, and a predetermined value for I/O node performance; and comparing the current test value with a predetermined tree performance threshold. If the current test value is below the predetermined tree performance threshold, embodiments include selecting another set of test compute nodes. If the current test value is not below the predetermined tree performance threshold, embodiments include selecting from the test compute nodes one or more potential problem nodes and testing individually potential problem nodes and links to potential problem nodes.

  9. 1256 IEEE TRANSACTIONS ON NEURAL NETWORKS, VOL. 16, NO. 5, SEPTEMBER 2005 Web Content Management by Self-Organization

    E-Print Network [OSTI]

    Yin, Hujun

    --We present a new method for content management and knowledge discovery using a topology-preserving neural to manually annotate electronic documents, e.g., webmas- ters and knowledge managers dealing with content-commerce, software contents management, doc- ument management and knowledge discovery [1]. Document management

  10. Graph/Network Visualization Data model: graph structures (relations,

    E-Print Network [OSTI]

    Fang, Shiaofen

    of physics #12;8 The Spring Model Using springs to represent node-node relations. Minimizing energy1 1 Graph/Network Visualization Data model: graph structures (relations, knowledge) and networks hierarchies #12;7 Sugiyama : Building Hierarchy Domain knowledge based. Designing heuristic, e.g. minimizing

  11. DIFS: A Distributed Index for Features in Sensor Networks

    E-Print Network [OSTI]

    Govindan, Ramesh

    of nodes in such networks is energy. Nodes are expected to be long­lived (deployed not for hours minimize energy use. The primary energy consumer in such systems is radio transmission. For one scenario and amount of data produced increase. Consequently, in energy­constrained sensor networks it may be necessary

  12. Wormhole-Resilient Secure Neighbor Discovery in Underwater Acoustic Networks

    E-Print Network [OSTI]

    Zhang, Rui

    ), Unmanned Underwater Vehicles (UUV), and surface stations, and nearby nodes communicate via acoustic ratherWormhole-Resilient Secure Neighbor Discovery in Underwater Acoustic Networks Rui Zhang and Yanchao in underwater acoustic networks (UANs) with floating node mobility. In hostile environments, neighbor discovery

  13. Visual Matrix Clustering of Social Networks

    SciTech Connect (OSTI)

    Wong, Pak C.; Mackey, Patrick S.; Foote, Harlan P.; May, Richard A.

    2013-07-01T23:59:59.000Z

    The prevailing choices to graphically represent a social network in today’s literature are a node-link graph layout and an adjacency matrix. Both visualization techniques have unique strengths and weaknesses when applied to different domain applications. In this article, we focus our discussion on adjacency matrix and how to turn the matrix-based visualization technique from merely showing pairwise associations among network actors (or graph nodes) to depicting clusters of a social network. We also use node-link layouts to supplement the discussion.

  14. Collector Receiver Design for Data Collection and Localization in Sensor-driven Networks

    E-Print Network [OSTI]

    Madhow, Upamanyu

    Collector Receiver Design for Data Collection and Localization in Sensor-driven Networks Bharath is communicating, falls on a network of collector nodes which are perpetually monitoring transmissions from with minimal capabilities, while shifting the complexity to a network of collector nodes. While the philosophy

  15. Antenna-based "Smart Skin" Sensors for Sustainable, Wireless Sensor Networks

    E-Print Network [OSTI]

    Tentzeris, Manos

    Antenna-based "Smart Skin" Sensors for Sustainable, Wireless Sensor Networks Hoseon Leet, George-less, or sustainable, wireless sensor networks with "smart skin" sensor nodes. These sensors are highly applicable a wireless sensor network with smart sensors requires a lot of power due to the mass number of sensor nodes

  16. Efficient Algorithms for the p-Self-Protection Problem in Static Wireless Sensor Networks

    E-Print Network [OSTI]

    Wang, Yu

    Efficient Algorithms for the p-Self-Protection Problem in Static Wireless Sensor Networks Yu Wang for static wireless sensor networks in this paper. The self-protection problem focuses on using sensor nodes nodes can resist the attacks targeting them directly. A wireless sensor network is p

  17. Fuzzy Trust Recommendation Based on Collaborative Filtering for Mobile Ad-hoc Networks

    E-Print Network [OSTI]

    Zhang, Yi

    Fuzzy Trust Recommendation Based on Collaborative Filtering for Mobile Ad-hoc Networks Junhai Luo1--Mobile ad-hoc networks (MANETs) are based on the cooperative and trust characteristic of the mobile nodes focused on building up trust among distributed network nodes to simulate cooperation and improving

  18. End-to-End Monitoring of Network Traffic and Congestion Events on the Planet-Lab Network with

    E-Print Network [OSTI]

    Kansas, University of

    .3.2.2.2 ­ Lost Packet Log: MMDDYY_forward_losses.txt 17 3.4 ­ Running the Programs 17 3.4.1 ­ Starting given nodes on the Planet-Lab network. By running the pmclient program on a Planet-Lab node determined, or if network events such as route changes or packet loss are detected, the probing rate

  19. Computational Intelligence in Telecommunications Networks, W. Pedrycz and A.V. Vasilakos (Eds.), CRC Press, 2000

    E-Print Network [OSTI]

    Kansas, University of

    , network management, mobile agents, intelligent interface agents, swarm intelligence, ants, network management architecture, network diagnosis, network traffic control and routing, network mobility platform Information and Telecommunication Technology Center (ITTC) Department of Electrical Engineering and Computer

  20. Environmental sensor networks and continuous data quality assurance to manage salinity within a highly regulated river basin

    E-Print Network [OSTI]

    Quinn, N.W.T.

    2010-01-01T23:59:59.000Z

    and Drainage System for Drainage Water Quality Management,quality management using a novel software tool, Aquarius. Commercial turn-key monitoring systems

  1. Optimal redundancy against disjoint vulnerabilities in networks

    E-Print Network [OSTI]

    Krause, Sebastian M; Zlati?, Vinko

    2015-01-01T23:59:59.000Z

    Redundancy is commonly used to guarantee continued functionality in networked systems. However, often many nodes are vulnerable to the same failure or adversary. A "backup" path is not sufficient if both paths depend on nodes which share a vulnerability.For example, if two nodes of the Internet cannot be connected without using routers belonging to a given untrusted entity, then all of their communication-regardless of the specific paths utilized-will be intercepted by the controlling entity.In this and many other cases, the vulnerabilities affecting the network are disjoint: each node has exactly one vulnerability but the same vulnerability can affect many nodes. To discover optimal redundancy in this scenario, we describe each vulnerability as a color and develop a "color-avoiding percolation" which uncovers a hidden color-avoiding connectivity. We present algorithms for color-avoiding percolation of general networks and an analytic theory for random graphs with uniformly distributed colors including critic...

  2. Pinning impulsive control algorithms for complex network

    SciTech Connect (OSTI)

    Sun, Wen [School of Information and Mathematics, Yangtze University, Jingzhou 434023 (China)] [School of Information and Mathematics, Yangtze University, Jingzhou 434023 (China); Lü, Jinhu [Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190 (China)] [Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190 (China); Chen, Shihua [College of Mathematics and Statistics, Wuhan University, Wuhan 430072 (China)] [College of Mathematics and Statistics, Wuhan University, Wuhan 430072 (China); Yu, Xinghuo [School of Electrical and Computer Engineering, RMIT University, Melbourne VIC 3001 (Australia)] [School of Electrical and Computer Engineering, RMIT University, Melbourne VIC 3001 (Australia)

    2014-03-15T23:59:59.000Z

    In this paper, we further investigate the synchronization of complex dynamical network via pinning control in which a selection of nodes are controlled at discrete times. Different from most existing work, the pinning control algorithms utilize only the impulsive signals at discrete time instants, which may greatly improve the communication channel efficiency and reduce control cost. Two classes of algorithms are designed, one for strongly connected complex network and another for non-strongly connected complex network. It is suggested that in the strongly connected network with suitable coupling strength, a single controller at any one of the network's nodes can always pin the network to its homogeneous solution. In the non-strongly connected case, the location and minimum number of nodes needed to pin the network are determined by the Frobenius normal form of the coupling matrix. In addition, the coupling matrix is not necessarily symmetric or irreducible. Illustrative examples are then given to validate the proposed pinning impulsive control algorithms.

  3. Multicommodity Flows and Cuts in Polymatroidal Networks

    E-Print Network [OSTI]

    Chekuri, Chandra; Raja, Adnan; Viswanath, Pramod

    2011-01-01T23:59:59.000Z

    We consider multicommodity flow and cut problems in {\\em polymatroidal} networks where there are submodular capacity constraints on the edges incident to a node. Polymatroidal networks were introduced by Lawler and Martel and Hassin in the single-commodity setting and are closely related to the submodular flow model of Edmonds and Giles; the well-known maxflow-mincut theorem holds in this more general setting. Polymatroidal networks for the multicommodity case have not, as far as the authors are aware, been previously explored. Our work is primarily motivated by applications to information flow in wireless networks. We also consider the notion of undirected polymatroidal networks and observe that they provide a natural way to generalize flows and cuts in edge and node capacitated undirected networks. We establish poly-logarithmic flow-cut gap results in several scenarios that have been previously considered in the standard network flow models where capacities are on the edges or nodes. Our results have alread...

  4. 12 IEEE TRANSACTIONS ON NETWORK AND SERVICE MANAGEMENT, VOL. 9, NO. 1, MARCH 2012 Performance Modeling and Analysis of

    E-Print Network [OSTI]

    Boutaba, Raouf

    of network firewalls against DDoS (Distributed Denial of Service) attacks as those commonly launched by today of the network. One of the most serious attacks is the Distributed Denial of Service (DDoS) attack. According to the 2010 Report conducted by Arbor Networks, there is a staggering and alarming 102 percent increase of DDoS

  5. An Extended Network Coding Opportunity Discovery Scheme in Wireless Networks

    E-Print Network [OSTI]

    Zhao, Yunlong; Iwai, Masayuki; Sezaki, Kaoru; Tobe, Yoshito; 10.5121/ijcnc.2012.4106

    2012-01-01T23:59:59.000Z

    Network coding is known as a promising approach to improve wireless network performance. How to discover the coding opportunity in relay nodes is really important for it. There are more coding chances, there are more times it can improve network throughput by network coding operation. In this paper, an extended network coding opportunity discovery scheme (ExCODE) is proposed, which is realized by appending the current node ID and all its 1-hop neighbors' IDs to the packet. ExCODE enables the next hop relay node to know which nodes else have already overheard the packet, so it can discover the potential coding opportunities as much as possible. ExCODE expands the region of discovering coding chance to n-hops, and have more opportunities to execute network coding operation in each relay node. At last, we implement ExCODE over the AODV protocol, and efficiency of the proposed mechanism is demonstrated with NS2 simulations, compared to the existing coding opportunity discovery scheme.

  6. E-Print Network 3.0 - apartheid-like social structure Sample...

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

    Maps and measures with NodeXL Networks are a data structure common across all social media... .northwestern.edu Marc A. Smith Chief Social Scientist Connected Action...

  7. Bayesian networks: maths problems March 31, 2009

    E-Print Network [OSTI]

    Barker, Jon

    that the patient smokes, but have not carried out any genetic tests. Symptoms of the disease are coughing (node C) and high temperature (node T). The patient is coughing but does not have a high temperature. Draw coughing. Draw a modified Bayesian network to model this, and discuss qualitatively how your belief about

  8. Networks of recyclable material waste-picker’s cooperatives: An alternative for the solid waste management in the city of Rio de Janeiro

    SciTech Connect (OSTI)

    Tirado-Soto, Magda Martina, E-mail: magda@pep.ufrj.br [Program of Production Engineering, School and Research in Engineering, Federal University of Rio de Janeiro (Brazil); Zamberlan, Fabio Luiz, E-mail: fabio@pep.ufrj.br [Program of Production Engineering, School and Research in Engineering, Federal University of Rio de Janeiro (Brazil)

    2013-04-15T23:59:59.000Z

    Highlights: ? In the marketing of recyclable materials, the waste-pickers are the least wins. ? It is proposed creating a network of recycling cooperatives to achieve viability. ? The waste-pickers contribute to waste management to the city. - Abstract: The objective of this study is to discuss the role of networks formed of waste-picker cooperatives in ameliorating problems of final disposal of solid waste in the city of Rio de Janeiro, since the city’s main landfill will soon have to close because of exhausted capacity. However, it is estimated that in the city of Rio de Janeiro there are around five thousand waste-pickers working in poor conditions, with lack of physical infrastructure and training, but contributing significantly by diverting solid waste from landfills. According to the Sustainable Development Indicators (IBGE, 2010a,b) in Brazil, recycling rates hover between 45% and 55%. In the municipality of Rio de Janeiro, only 1% of the waste produced is collected selectively by the government (COMLURB, 2010), demonstrating that recycling is mainly performed by waste-pickers. Furthermore, since the recycling market is an oligopsony that requires economies of scale to negotiate directly with industries, the idea of working in networks of cooperatives meets the demands for joint marketing of recyclable materials. Thus, this work presents a method for creating and structuring a network of recycling cooperatives, with prior training for working in networks, so that the expected synergies and joint efforts can lead to concrete results. We intend to demonstrate that it is first essential to strengthen the waste-pickers’ cooperatives in terms of infrastructure, governance and training so that solid waste management can be environmentally, socially and economically sustainable in the city of Rio de Janeiro.

  9. Virtual Gateway Network Documentation

    E-Print Network [OSTI]

    Segall, Adrian

    Virtual Gateway Network Documentation Composed By: Stiven Andre Nikolai Gukov #12;Table of contents.3) VGNET as a network manager 2) VGNET explained 2.1) One PC with multiple Internet access points. 2 both routers. 1.3) VGNET as a network manager Let's look at figure 3 again. The perfect scenario we may

  10. Radioactive Target Detection Using Wireless Sensor Network

    E-Print Network [OSTI]

    Zhang, Tonglin

    Chapter 31 Radioactive Target Detection Using Wireless Sensor Network Tonglin Zhang Abstract for wireless sensor network data to detect and locate a hidden nuclear target in a large study area. The method assumes multiple radiation detectors have been used as sensor nodes in a wireless sensor network

  11. Modeling Social Networks with Sampled Data 1

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Modeling Social Networks with Sampled Data 1 Technical Report no. 523 Department of Statistics of these relations. Recently, social network studies have focused a great deal of attention on random graph models of networks whose nodes represent individual social actors and whose edges represent a specified relationship

  12. Properties of real networks: degree distribution

    E-Print Network [OSTI]

    Albert, Réka

    Properties of real networks: degree distribution Nodes with small degrees are most frequent;Degree distributions in networks of science collaborations Coauthor, neurosci. 21. )( kkP Coauthor, HEP (2001) )(kP #12;Metabolic networks have a power-law degree distribution H. Jeong et al., Nature 407, 651

  13. Class network routing

    DOE Patents [OSTI]

    Bhanot, Gyan (Princeton, NJ); Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton On Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Takken, Todd E. (Mount Kisco, NY); Vranas, Pavlos M. (Bedford Hills, NY)

    2009-09-08T23:59:59.000Z

    Class network routing is implemented in a network such as a computer network comprising a plurality of parallel compute processors at nodes thereof. Class network routing allows a compute processor to broadcast a message to a range (one or more) of other compute processors in the computer network, such as processors in a column or a row. Normally this type of operation requires a separate message to be sent to each processor. With class network routing pursuant to the invention, a single message is sufficient, which generally reduces the total number of messages in the network as well as the latency to do a broadcast. Class network routing is also applied to dense matrix inversion algorithms on distributed memory parallel supercomputers with hardware class function (multicast) capability. This is achieved by exploiting the fact that the communication patterns of dense matrix inversion can be served by hardware class functions, which results in faster execution times.

  14. Branch and cut algorithms for detecting critical nodes in undirected ...

    E-Print Network [OSTI]

    2011-11-28T23:59:59.000Z

    a “smart” attacker has damaged K ? |V | nodes. With this aim in mind, similar problems have been studied in the literature. The problem can be seen as a ...

  15. DETECTING CRITICAL NODES IN SPARSE GRAPHS Given a ...

    E-Print Network [OSTI]

    2008-08-21T23:59:59.000Z

    the pair-wise disconnectivity among the nodes, but also minimizes the variance in the car- dinalities of the components. Particularly, in Lemma 1 we show that for

  16. Enhancing the B+ -tree by Dynamic Node Popularity Caching

    E-Print Network [OSTI]

    Zhang, Rui

    that the typical utilization rate of internal B+ -tree nodes is around 67% [11]. We propose a variant of the B

  17. Dispatching packets on a global combining network of a parallel computer

    DOE Patents [OSTI]

    Almasi, Gheorghe (Ardsley, NY); Archer, Charles J. (Rochester, MN)

    2011-07-19T23:59:59.000Z

    Methods, apparatus, and products are disclosed for dispatching packets on a global combining network of a parallel computer comprising a plurality of nodes connected for data communications using the network capable of performing collective operations and point to point operations that include: receiving, by an origin system messaging module on an origin node from an origin application messaging module on the origin node, a storage identifier and an operation identifier, the storage identifier specifying storage containing an application message for transmission to a target node, and the operation identifier specifying a message passing operation; packetizing, by the origin system messaging module, the application message into network packets for transmission to the target node, each network packet specifying the operation identifier and an operation type for the message passing operation specified by the operation identifier; and transmitting, by the origin system messaging module, the network packets to the target node.

  18. Storageflow: An SDN Approach to Storage Networks

    E-Print Network [OSTI]

    Bose, Pradipta

    2014-08-04T23:59:59.000Z

    and support for experimentation. Additionally, there is a significant potential to improve the performance of the system by leveraging regenerative coding techniques and by allowing the intermediate network nodes to perform encoding operations. OpenFlow (OF...

  19. 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)

    2010-03-30T23:59:59.000Z

    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.

  20. Maximizing the Number of Broadcast Operations in Static Random Geometric Ad-Hoc Networks

    E-Print Network [OSTI]

    Calamoneri, Tiziana

    networks where nodes have the same initial battery charge and they may dynamically change their transmission range at every time slot. When a node v transmits with range r(v), its battery charge is decreased-Verlag Berlin Heidelberg 2007 #12;248 T. Calamoneri et al. supplied to the node. In particular, the power Pv

  1. Mobile Node Rostering In Intermittently Connected

    E-Print Network [OSTI]

    Wu, Hongyi

    network and GPS technologies have been explored for wildlife research #12;What we do in field experiments under very harsh environments (underwater, underground tunnels, and extreme temperatures) #12;POSSIBLE occasionally. A special DTN with unique communication and storage constraints. Intermittent computation

  2. tinyMoBot: A Platform for Mobile Sensor Networks Torsten Stremlau, Christoph Weyer, and Volker Turau

    E-Print Network [OSTI]

    Turau, Volker

    tinyMoBot: A Platform for Mobile Sensor Networks Torsten Stremlau, Christoph Weyer, and Volker or the whole network consist of mobile sen- sor nodes. Currently, no common platform is available. This paper are able to communicate with static nodes. Since a general mobile sensor network platform is not available

  3. Toward Resilient Security in Wireless Sensor Networks # Hao Yang # , Fan Ye + , Yuan Yuan # , Songwu Lu # , William Arbaugh #

    E-Print Network [OSTI]

    Lu, Songwu

    networks, location­based security, resiliency, node compromise, en­route filtering, key distributionToward Resilient Security in Wireless Sensor Networks # Hao Yang # , Fan Ye + , Yuan Yuan@us.ibm.com {yuanyuan,waa}@cs.umd.edu ABSTRACT Node compromise poses severe security threats in wireless sensor networks

  4. Mobile Networks and Applications 10, 985995, 2005 C 2005 Springer Science + Business Media, Inc. Manufactured in The Netherlands.

    E-Print Network [OSTI]

    Ramkumar, Mahalingam

    : collaborative trust-based routing, secure communication, colluding malicious nodes, mobile ad hoc networks 1 of the network changes dynamically. Thus, any security model, based on a fixed architecture cannot be used security and low trust levels among nodes in an ad hoc network demands a secure end-to-end route free

  5. IEEE INFOCOM 2002 1 Application of Network Calculus to General

    E-Print Network [OSTI]

    Starobinski, David

    approaches for breaking cycles, such as the spanning tree and up/down routing algorithms, in terms of network, the minimum envelop rate (MER) [5] and exponentially bounded burstiness (EBB) [27] network calculi provide provides general stochastic bounds at each node of a network. A central problem shared by all network

  6. Design and Analysis of Low Complexity Network Coding Schemes

    E-Print Network [OSTI]

    Tabatabaei-Yazdi, Seyed

    2012-02-20T23:59:59.000Z

    . Motivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 B. Background, Contributions, and Related Work . . . . . . . . . 3 1. Undirected ring networks . . . . . . . . . . . . . . . . . . 3 2. Node constrained line and star networks... . . . . . . . . . . 5 3. Linear deterministic relay networks . . . . . . . . . . . . . 8 C. Dissertation Outline . . . . . . . . . . . . . . . . . . . . . . . 12 II ON THE MULTIMESSAGE CAPACITY REGION FOR UNDI- RECTED RING NETWORKS...

  7. A Framework for the Capacity Evaluation of Multihop Wireless Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Framework for the Capacity Evaluation of Multihop Wireless Networks Herv´e Rivano CNRS - INRIA and localized CDS. Index Terms--network capacity, multihop wireless networks, upper and lower bounds, linear programing I. INTRODUCTION Ad hoc networks are spontaneous multihop topologies of wireless nodes

  8. Key Predistribution Techniques for Grid-Based Wireless Sensor Networks

    E-Print Network [OSTI]

    Key Predistribution Techniques for Grid-Based Wireless Sensor Networks Simon R. Blackburn1 , Tuvi sensor networks. Networks consisting of wireless sensor nodes ar- ranged in a grid pattern have many for the instantiation of these schemes. Key words: Key predistribution, wireless sensor networks; symmetric key

  9. Downhole drilling network using burst modulation techniques

    DOE Patents [OSTI]

    Hall; David R. (Provo, UT), Fox; Joe (Spanish Fork, UT)

    2007-04-03T23:59:59.000Z

    A downhole drilling system is disclosed in one aspect of the present invention as including a drill string and a transmission line integrated into the drill string. Multiple network nodes are installed at selected intervals along the drill string and are adapted to communicate with one another through the transmission line. In order to efficiently allocate the available bandwidth, the network nodes are configured to use any of numerous burst modulation techniques to transmit data.

  10. 1928 IEEE COMMUNICATIONS LETTERS, VOL. 17, NO. 10, OCTOBER 2013 A Small World Network Model for Energy Efficient Wireless Networks

    E-Print Network [OSTI]

    Elkashlan, Maged

    for Energy Efficient Wireless Networks Tiankui Zhang, Jinlong Cao, Yue Chen, Laurie Cuthbert, and Maged Elkashlan Abstract--Wireless ad hoc networks can be modeled as small world networks based on the complex of the wireless links, and 2) the impact of a wireless node on the entire network. By adopting the proposed metric

  11. Automatic Clustering of Grid Nodes Department of Electrical and

    E-Print Network [OSTI]

    Subhlok, Jaspal

    Automatic Clustering of Grid Nodes Qiang Xu Department of Electrical and Computer Engineering Science University of Houston Houston, Texas 77204 Email: jaspal@uh.edu Abstract-- In a grid to an efficient, scalable and portable method of clustering grid nodes and building a distance map among clusters

  12. Maximizing Service Reliability in Distributed Computing Systems with Random Node

    E-Print Network [OSTI]

    Hayat, Majeed M.

    Maximizing Service Reliability in Distributed Computing Systems with Random Node Failures: Theory Member, IEEE Abstract--In distributed computing systems (DCSs) where server nodes can fail permanently with nonzero probability, the system performance can be assessed by means of the service reliability, defined

  13. Caching in wireless networks

    E-Print Network [OSTI]

    Niesen, Urs

    We consider the problem of delivering content cached in a wireless network of n nodes randomly located on a square of area n. In the most general form, this can be analyzed by considering the 2[superscript n] timesn-dimensional ...

  14. Method and computer product to increase accuracy of time-based software verification for sensor networks

    DOE Patents [OSTI]

    Foo Kune, Denis (Saint Paul, MN); Mahadevan, Karthikeyan (Mountain View, CA)

    2011-01-25T23:59:59.000Z

    A recursive verification protocol to reduce the time variance due to delays in the network by putting the subject node at most one hop from the verifier node provides for an efficient manner to test wireless sensor nodes. Since the software signatures are time based, recursive testing will give a much cleaner signal for positive verification of the software running on any one node in the sensor network. In this protocol, the main verifier checks its neighbor, who in turn checks its neighbor, and continuing this process until all nodes have been verified. This ensures minimum time delays for the software verification. Should a node fail the test, the software verification downstream is halted until an alternative path (one not including the failed node) is found. Utilizing techniques well known in the art, having a node tested twice, or not at all, can be avoided.

  15. Managing Solutions

    E-Print Network [OSTI]

    Baker, Emily

    2007-01-01T23:59:59.000Z

    , and Texas Water --------------------------------------------- Project Managers Cecilia Wagner, Kevin Wagner, Danielle Supercinski, Dr. Bill Fox and Lucas Gregory work to link university researchers and Extension specialists to appropriate funding agen... Irrigators Network. Kevin Wagner, who joined TWRI in 2005 from TSSWCB, has spent several years working with environmental issues. He is currently pursuing his doctorate evaluating best management practices for reducing bacterial runoff from cattle wastes...

  16. Network topology analysis.

    SciTech Connect (OSTI)

    Kalb, Jeffrey L.; Lee, David S.

    2008-01-01T23:59:59.000Z

    Emerging high-bandwidth, low-latency network technology has made network-based architectures both feasible and potentially desirable for use in satellite payload architectures. The selection of network topology is a critical component when developing these multi-node or multi-point architectures. This study examines network topologies and their effect on overall network performance. Numerous topologies were reviewed against a number of performance, reliability, and cost metrics. This document identifies a handful of good network topologies for satellite applications and the metrics used to justify them as such. Since often multiple topologies will meet the requirements of the satellite payload architecture under development, the choice of network topology is not easy, and in the end the choice of topology is influenced by both the design characteristics and requirements of the overall system and the experience of the developer.

  17. Sensor Wars: Detecting and Defending Against Spam Attacks in Wireless Sensor Networks

    E-Print Network [OSTI]

    Levi, Albert

    network are discussed in [7]. Security, network bandwidth and power consumption in sensor networksSensor Wars: Detecting and Defending Against Spam Attacks in Wireless Sensor Networks Serdar Sancak@sabanciuniv.edu Abstract--Anti-nodes deployed inside a wireless sensor network can frequently generate dummy data packets

  18. Flexible network wireless transceiver and flexible network telemetry transceiver

    DOE Patents [OSTI]

    Brown, Kenneth D. (Grain Valley, MO)

    2008-08-05T23:59:59.000Z

    A transceiver for facilitating two-way wireless communication between a baseband application and other nodes in a wireless network, wherein the transceiver provides baseband communication networking and necessary configuration and control functions along with transmitter, receiver, and antenna functions to enable the wireless communication. More specifically, the transceiver provides a long-range wireless duplex communication node or channel between the baseband application, which is associated with a mobile or fixed space, air, water, or ground vehicle or other platform, and other nodes in the wireless network or grid. The transceiver broadly comprises a communication processor; a flexible telemetry transceiver including a receiver and a transmitter; a power conversion and regulation mechanism; a diplexer; and a phased array antenna system, wherein these various components and certain subcomponents thereof may be separately enclosed and distributable relative to the other components and subcomponents.

  19. A Dual-Based Algorithm for Multi-Level Network Design

    E-Print Network [OSTI]

    Balakrishnan, Anantaram

    Given an undirected network with L possible facility types for each edge, and a partition of the nodes into L levels, the Multi-level Network Design (MLND) problem seeks a fixed cost minimizing design that spans all the ...

  20. Predicting Turbulence using Partial Least Squares Regression and an Artificial Neural Network

    E-Print Network [OSTI]

    Lakshmanan, Valliappa

    Predicting Turbulence using Partial Least Squares Regression and an Artificial Neural Network in the dataset. Then, the transformed data are pre- sented to a neural network whose output node has a sigmoid