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Note: This page contains sample records for the topic "flask sampling network" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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1

Atmospheric carbon diooxide mixing ratios from the NOAA Climate Monitoring and Diagnostics Laboratory cooperative flask sampling network, 1967-1993  

Science Conference Proceedings (OSTI)

This data report documents monthly atmospheric CO{sub 2} mixing ratios and measurements obtained by analyzing individual flask air samples for the NOAA/CMDL global cooperative flask sampling network. Measurements include land-based sampling sites and shipboard measurements covering 14 latitude bands in the Pacific Ocean and South China Sea. Analysis of the NOAA/CMDL flask CO{sub 2} database shows a long-term increase in atmospheric CO{sub 2} mixing ratios since the late 1960s. This report describes how the samples are collected and analyzed and how the data are processed, defines limitations, and restrictions of the data, describes the contents and format of the data files, and provides tabular listings of the monthly carbon dioxide records.

Conway, T.J.; Tans, P.P. [National Oceanic and Atmospheric Administration, Boulder, CO (United States); BBoden, T.A. [Oak Ridge National Lab., TN (United States)

1996-02-01T23:59:59.000Z

2

Atmospheric CO2 Concentrations from the CSIRO GASLAB Flask Sampling...  

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

from the CSIRO GASLAB Flask Sampling Network CSIRO GASLAB sites Alert, NWT, Canada Cape Ferguson, Australia Cape Grim, Australia Casey, Antarctica Estevan Point, BC,...

3

Atmospheric CH4 Concentrations from the CSIRO GASLAB Flask Sampling...  

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

CH4 Concentrations from the CSIRO GASLAB Flask Sampling Network image Alert, NWT, Canada Cape Ferguson, Australia Cape Grim, Australia Estevan Point, BC, Canada Macquarie...

4

Analysis System for Measurement of CO2 Mixing Ratios in Flask Air Samples  

Science Conference Proceedings (OSTI)

A system for measuring the concentration of CO2 in flask air samples from the NOAA/CMDL worldwide flask sampling network is described. Up to 180 samples per day can he analyzed using a nondispersive infrared CO2 analyzer. All data acquisition and ...

Kirk W. Thoning; Thomas J. Conway; Ni Zhang; Duane Kitzis

1995-12-01T23:59:59.000Z

5

Atmospheric CO2 From Flask Air Samples at 10 Sites in the SIO Air Sampling  

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

Flask Air Samples, SIO Network Flask Air Samples, SIO Network Atmospheric CO2 From Flask Air Samples at 10 Sites in the SIO Air Sampling Network Scripps Institution of Oceanography Monitoring Sites Scripps Institution of Oceanography Monitoring Sites Mauna Loa, Hawaii Mauna Loa weekly average CO2 concentrations derived from continuous air samples Barrow, Alaska American Samoa South Pole Daily average CO2 concentrations derived from continuous air samples Alert, NWT, Canada Cape Kumukahi Christmas Island Baring Head Kermadec Island La Jolla Pier La Jolla Pier weekly average CO2 concentrations derived from continuous air samples PDF Documentation available as Atmospheric Carbon Dioxide Concentrations at 10 Locations Spanning Latitudes 82°N to 90°S, (NDP-001a) For information on calibration and some additional literature, go to

6

CSIRO GASLAB Network: Individual Flask Measurements of Atmospheric Trace  

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

GASLAB Network GASLAB Network CSIRO GASLAB Network: Individual Flask Measurements of Atmospheric Trace Gases (April 2003) data Data Investigators L.P. Steele, P.R. Krummel, and R.L. Langenfelds Commonwealth Scientific and Industrial Research Organisation (CSIRO) DOI 10.3334/CDIAC/atg.db1021 Data are available for four atmospheric trace gases at nine stationary sites and one moving platform (aircraft over Cape Grim, Tasmania, and Bass Strait, between the Australian continent and Tasmania). The trace gases are carbon dioxide (CO2), methane (CH4), carbon monoxide (CO), and hydrogen (H2). Measurements of δ13C from CO2 are also included in this database. The nine stationary sites are, from north to south: Alert, Canada; Shetland Islands, Scotland; Estevan Point, Canada; Mauna Loa, Hawaii; Cape Ferguson,

7

A Computer-Controlled Continuous Air Drying and Flask Sampling System  

Science Conference Proceedings (OSTI)

A computer-controlled continuous air drying and flask sampling system has been developed and is discussed here. This system is set up for taking air samples automatically at remote places. Twenty glass flasks can be connected one by one or in ...

R. E. M. Neubert; L. L. Spijkervet; J. K. Schut; H. A. Been; H. A. J. Meijer

2004-04-01T23:59:59.000Z

8

ARM - PI Product - ARM-LBNL-NOAA Flask Sampler for Carbon Cycle Gases  

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

ProductsARM-LBNL-NOAA Flask Sampler for Carbon Cycle ProductsARM-LBNL-NOAA Flask Sampler for Carbon Cycle Gases Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send PI Product : ARM-LBNL-NOAA Flask Sampler for Carbon Cycle Gases Site(s) SGP General Description Data from ccg-flasks are sampled at the ARM SGP site and analyzed by the NOAA Earth System Research Laboratory (ESRL) as part of the NOAA Cooperative Global Air Sampling Network. Surface samples are collected from a 60m tower at the SGP Central Facility, usually once per week on one afternoon. The aircraft samples are collected approximately weekly from a chartered aircraft, and the collection flight path is centered over the tower where the surface samples are collected. Samples are collected by the ARM/LBNL Carbon Project. CO2 flask data contains measurements of CO2

9

ARM - Instrument - flask  

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

or Programmable Flask Package (PFP), is used in conjunction with the Programmable Compressor Package (PCP)-a mounted compressor and power module-for programmable time-interval...

10

Networked Aquatic Sampling System  

E-Print Network (OSTI)

system for field operation Wireless 802.11b based networkOperation Continuous real time data acquisition and logging of pertinent environmental parameters WirelessOperation Network of 10 static nodes and 1 robotic boat AODV based ad-hoc 802.11b wireless

2005-01-01T23:59:59.000Z

11

ARM Carbon Cycle Gases Flasks at SGP Site  

DOE Data Explorer (OSTI)

Data from flasks are sampled at the Atmospheric Radiation Measurement Program ARM, Southern Great Plains Site and analyzed by the National Oceanic and Atmospheric Administration NOAA, Earth System Research Laboratory ESRL. The SGP site is included in the NOAA Cooperative Global Air Sampling Network. The surface samples are collected from a 60 m tower at the ARM SGP Central Facility, usually once per week in the afternoon. The aircraft samples are collected approximately weekly from a chartered aircraft, and the collection flight path is centered over the tower where the surface samples are collected. The samples are collected by the ARM and LBNL Carbon Project.

Sebastien Biraud

12

Efficient sampling of information in social networks  

Science Conference Proceedings (OSTI)

As online social networking emerges, there has been increased interest to utilize the underlying social structure as well as the available social information to improve search. In this paper, we focus on improving the performance of information collection ... Keywords: personalization, sampling social networks, social search

Gautam Das; Nick Koudas; Manos Papagelis; Sushruth Puttaswamy

2008-10-01T23:59:59.000Z

13

Random walk based node sampling in self-organizing networks  

Science Conference Proceedings (OSTI)

Random walk is a means of network node sampling that requires little index maintenance and can function on almost all connected network topologies. With careful guidance, node samples following a desired probability distribution can be generated with ...

Ming Zhong; Kai Shen

2006-07-01T23:59:59.000Z

14

Data sampling control, compression and query in sensor networks  

Science Conference Proceedings (OSTI)

Nodes in wireless sensor networks have very limited storage capacity, computing ability and battery power. Node failure and communication link disconnection occur frequently, which means weak services of the network layer. Sensed data is inaccurate which ... Keywords: data accuracy, data compression, data sampling, energy efficiency, power limitation, query, sampling frequency control, sensor networks

Jinbao Li; Jianzhong Li

2007-04-01T23:59:59.000Z

15

ACT4: Networked Aquatic Sampling System  

E-Print Network (OSTI)

system for field operation Wireless 802.11b based networkOperation Continuous real time data acquisition and logging of pertinent environmental parameters WirelessOperation Network of 10 static nodes and 1 robotic boat AODV based ad-hoc 802.11b wireless

2005-01-01T23:59:59.000Z

16

Decentralized control of adaptive sampling in wireless sensor networks  

Science Conference Proceedings (OSTI)

The efficient allocation of the limited energy resources of a wireless sensor network in a way that maximizes the information value of the data collected is a significant research challenge. Within this context, this article concentrates on adaptive ... Keywords: Adaptive sampling algorithm, Gaussian process regression, decentralized decision mechanism, information metric

Johnsen Kho; Alex Rogers; Nicholas R. Jennings

2009-05-01T23:59:59.000Z

17

Atmospheric Carbon Dioxide Record from Flask Measurements at...  

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

Island Atmospheric Carbon Dioxide Record from Flask Measurements at Lampedusa Island graphics Graphics data Data Investigators Paolo Chamard, Luigi Ciattaglia, Alcide di Sarra,...

18

Robust and Scalable Sampling Algorithms for Network Measurement  

E-Print Network (OSTI)

Recent growth of the Internet in both scale and complexity has imposed a number of difficult challenges on existing measurement techniques and approaches, which are essential for both network management and many ongoing research projects. For any measurement algorithm, achieving both accuracy and scalability is very challenging given hard resource constraints (e.g., bandwidth, delay, physical memory, and CPU speed). My dissertation research tackles this problem by first proposing a novel mechanism called residual sampling, which intentionally introduces a predetermined amount of bias into the measurement process. We show that such biased sampling can be extremely scalable; moreover, we develop residual estimation algorithms that can unbiasedly recover the original information from the sampled data. Utilizing these results, we further develop two versions of the residual sampling mechanism: a continuous version for characterizing the user lifetime distribution in large-scale peer-to-peer networks and a discrete version for monitoring flow statistics (including per-flow counts and the flow size distribution) in high-speed Internet routers. For the former application in P2P networks, this work presents two methods: ResIDual-based Estimator (RIDE), which takes single-point snapshots of the system and assumes systems with stationary arrivals, and Uniform RIDE (U-RIDE), which takes multiple snapshots and adapts to systems with arbitrary (including non-stationary) arrival processes. For the latter application in traffic monitoring, we introduce Discrete RIDE (D-RIDE), which allows one to sample each flow with a geometric random variable. Our numerous simulations and experiments with P2P networks and real Internet traces confirm that these algorithms are able to make accurate estimation about the monitored metrics and simultaneously meet the requirements of hard resource constraints. These results show that residual sampling indeed provides an ideal solution to balancing between accuracy and scalability.

Wang, Xiaoming

2009-08-01T23:59:59.000Z

19

New event-driven sampling techniques for network reliability estimation  

Science Conference Proceedings (OSTI)

Exactly computing network reliability measures is an NP-hard problem. Therefore, Monte Carlo simulation has been frequently used by network designers to obtain accurate estimates. This paper focuses on simulation estimation of network reliability. Using ...

Abdullah Konak; Alice E. Smith; Sadan Kulturel-Konak

2004-12-01T23:59:59.000Z

20

Critical infrastructure protection: Resource efficient sampling to improve detection of less frequent patterns in network traffic  

Science Conference Proceedings (OSTI)

Networked critical infrastructures are of national importance. However, such infrastructures are running 24/7. The supervisory control and data acquisition system (SCADA) of the critical infrastructure will generate enormous network traffic continuously. ... Keywords: Critical infrastructure, Sampling, Traffic analysis

Abdun Naser Mahmood; Jiankun Hu; Zahir Tari; Christopher Leckie

2010-07-01T23:59:59.000Z

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


21

Adaptive sampling and forecasting with mobile sensor networks  

E-Print Network (OSTI)

This thesis addresses planning of mobile sensor networks to extract the best information possible out of the environment to improve the (ensemble) forecast at some verification region in the future. To define the information ...

Choi, Han-Lim

2009-01-01T23:59:59.000Z

22

Optimum Sampling Designs for a GliderMooring Observing Network  

Science Conference Proceedings (OSTI)

Ocean observing systems (OOSs) constituted by moorings and gliders are becoming relevant in oceanographic and climate studies. In these observing networks, the temporal variability is captured by mooring observations, while the spatial variability ...

A. Alvarez; B. Mourre

2012-04-01T23:59:59.000Z

23

Multihop performance of cooperative preamble sampling MAC(CPS-MAC) in wireless sensor networks  

Science Conference Proceedings (OSTI)

Cooperative communication(CC) is a promising technique to combat fading in a wireless environment. In our previous work, we proposed Cooperative Preamble Sampling(CPS)-Medium Access Control(MAC) protocol which highlighted the benefits of using CC in ... Keywords: cooperative communication, medium access control, preamble sampling, reliability, wireless sensor networks

Rana Azeem M. Khan; Holger Karl

2011-07-01T23:59:59.000Z

24

Network  

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

network - launched in November 2012. The network was built in collaboration with Internet2, an advanced network, which connects the nation's research universities. Leveraging...

25

A walk in facebook: Uniform sampling of users in online social networks. Arxiv preprint arXiv:0906.0060  

E-Print Network (OSTI)

The popularity of online social networks (OSNs) has given rise to a number of measurements studies that provide a first step towards their understanding. So far, such studies have been based either on complete data sets provided directly by the OSN itself or on Breadth-First-Search (BFS) crawling of the social graph, which does not guarantee good statistical properties of the collected sample. In this paper, we crawl the publicly available social graph and present the first unbiased sampling of Facebook (FB) users using a Metropolis-Hastings random walk with multiple chains. We study the convergence properties of the walk and demonstrate the uniformity of the collected sample with respect to multiple metrics of interest. We provide a comparison of our crawling technique to baseline algorithms, namely BFS and simple random walk, as well as to the ground truth obtained through truly uniform sampling of userIDs. Our contributions lie both in the measurement methodology and in the collected sample. With regards to the methodology, our measurement technique (i) applies and combines known results from random walk sampling specifically in the OSN context and (ii) addresses system implementation aspects that have made the measurement of Facebook challenging so far. With respect to the collected sample: (i) it is the first representative sample of FB users and we plan to make it publicly available; (ii) we perform a characterization of several key properties of the data set, and find that some of them are substantially different from what was previously believed based on non-representative OSN samples. 1.

Minas Gjoka; Maciej Kurant; Carter T. Butts; Athina Markopoulou

2009-01-01T23:59:59.000Z

26

Simultaneous Detection of Climate Change and Observing Biases in a Network with Incomplete Sampling  

Science Conference Proceedings (OSTI)

All instrumental climate records are affected by instrumentation changes and variations in sampling over time. While much attention has been paid to the problem of detecting change points in time series, little has been paid to the statistical ...

Steven C. Sherwood

2007-08-01T23:59:59.000Z

27

Sampling community structure  

Science Conference Proceedings (OSTI)

We propose a novel method, based on concepts from expander graphs, to sample communities in networks. We show that our sampling method, unlike previous techniques, produces subgraphs representative of community structure in the original network. These ... Keywords: clustering, community detection, complex networks, graphs, sampling, social networks

Arun S. Maiya; Tanya Y. Berger-Wolf

2010-04-01T23:59:59.000Z

28

Inverse modeling of CO2 sources and sinks using satellite observations of CO2 from TES and surface flask measurements  

SciTech Connect

We infer CO2 surface fluxes using satellite observations of mid-tropospheric CO2 from the Tropospheric Emission Spectrometer (TES) and measurements of CO2 from surface flasks in a time-independent inversion analysis based on the GEOS-Chem model. Using TES CO2 observations over oceans, spanning 40 S 40 N, we find that the horizontal and vertical coverage of the TES and flask data are complementary. This complementarity is demonstrated by combining the datasets in a joint inversion, which provides better constraints than from either dataset alone, when a posteriori CO2 distributions are evaluated against independent ship and aircraft CO2 data. In particular, the joint inversion offers improved constraints in the tropics where surface measurements are sparse, such as the tropical forests of South America. Aggregating the annual surface-to-atmosphere fluxes from the joint inversion for the year 2006 yields 1.13 0.21 PgC for the global ocean, 2.77 0.20 PgC for the global land biosphere and 3.90 0.29 PgC for the total global natural flux (defined as the sum of all biospheric, oceanic, and biomass burning contributions but excluding CO2 emissions from fossil fuel combustion). These global ocean and global land fluxes are shown to be near the median of the broad range of values from other inversion results for 2006. To achieve these results, a bias in TES CO2 in the Southern Hemisphere was assessed and corrected using aircraft flask data, and we demonstrate that our results have low sensitivity to variations in the bias correction approach. Overall, this analysis suggests that future carbon data assimilation systems can benefit by integrating in situ and satellite observations of CO2 and that the vertical information provided by satellite observations of mid-tropospheric CO2 combined with measurements of surface CO2, provides an important additional constraint for flux inversions.

Nassar, Ray [University of Toronto; Jones, DBA [University of Toronto; Kulawik, SS [Jet Propulsion Laboratory, Pasadena, CA; Worden, JR [Jet Propulsion Laboratory, Pasadena, CA; Bowman, K [Jet Propulsion Laboratory, Pasadena, CA; Andres, Robert Joseph [ORNL; Suntharalingam, P [University of East Anglia, Norwich, United Kingdom; Chen, j. [University of Toronto; Brenninkmeijer, CAM [Max Planck Institut fur Chemie, Mainz; Schuck, TJ [Max Planck Institut fur Chemie, Mainz; Conway, T.J. [NOAA, Boulder, CO; Worthy, DE [Environment Canada

2011-01-01T23:59:59.000Z

29

Bayesian networks  

E-Print Network (OSTI)

g causal independence in Bayesian network inference. Journalworld ap- plications of Bayesian networks. Communications ofJensen. An Introduction to Bayesian Networks. Springer, New

Judea Pearl

2011-01-01T23:59:59.000Z

30

Controller synthesis for networked control systems  

Science Conference Proceedings (OSTI)

This paper presents a discrete-time model for networked control systems (NCSs) that incorporates all network phenomena: time-varying sampling intervals, packet dropouts and time-varying delays that may be both smaller and larger than the sampling interval. ... Keywords: Linear matrix inequalities, Networked control systems, Sampled-data control, Stability analysis, Time-varying delay

M. B. G. Cloosterman; L. Hetel; N. van de Wouw; W. P. M. H. Heemels; J. Daafouz; H. Nijmeijer

2010-10-01T23:59:59.000Z

31

Sampling Soil  

INL has developed a method for sampling soil to determine the presence of extremely fine particles such as absorbents.

32

Anthrax Sampling  

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

Anthrax Anthrax Sampling and Decontamination: Technology Trade-Offs Phillip N. Price, Kristina Hamachi, Jennifer McWilliams, and Michael D. Sohn Environmental Energy Technologies Division Lawrence Berkeley National Laboratory Berkeley CA 94720 September 12, 2008 This work was supported by the Office of Science, Office of High Energy Physics, Homeland Security under the U.S. Department of Energy under Contract No. DE-AC02-05CH1123. Contents 1 Executive Summary 3 1.1 How much sampling is needed to decide if a building is safe? . . . . . . . 3 1.1.1 Sampling Nomogram . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2 How many characterization samples should be taken? . . . . . . . . . . . 7 1.3 What decontamination method should be used? . . . . . . . . . . . . . . . 7 1.4 Post-decontamination sampling . . . . . . . . . . . . . . . . . . . . . . . . 8 1.5 What are rules of thumb for cost and effort? . . . . . . . . . . . .

33

Sampling box  

DOE Patents (OSTI)

An air sampling box that uses a slidable filter tray and a removable filter cartridge to allow for the easy replacement of a filter which catches radioactive particles is disclosed.

Phillips, Terrance D. (617 Chestnut Ct., Aiken, SC 29803); Johnson, Craig (100 Midland Rd., Oak Ridge, TN 37831-0895)

2000-01-01T23:59:59.000Z

34

Network performance measurement with periodic streams  

Science Conference Proceedings (OSTI)

This memo describes a periodic sampling method and relevant metrics for assessing the performance of IP networks. First, the memo motivates periodic sampling and addresses the question of its value as an alternative to the Poisson sampling described ...

V. Raisanen; G. Grotefeld; A. Morton

2002-11-01T23:59:59.000Z

35

Spatial Networks  

E-Print Network (OSTI)

Complex systems are very often organized under the form of networks where nodes and edges are embedded in space. Transportation and mobility networks, Internet, mobile phone networks, power grids, social and contact networks, neural networks, are all examples where space is relevant and where topology alone does not contain all the information. Characterizing and understanding the structure and the evolution of spatial networks is thus crucial for many different fields ranging from urbanism to epidemiology. An important consequence of space on networks is that there is a cost associated to the length of edges which in turn has dramatic effects on the topological structure of these networks. We will expose thoroughly the current state of our understanding of how the spatial constraints affect the structure and properties of these networks. We will review the most recent empirical observations and the most important models of spatial networks. We will also discuss various processes which take place on these spa...

Barthelemy, Marc

2010-01-01T23:59:59.000Z

36

Bayesian Networks  

E-Print Network (OSTI)

season. do X X X X Thus, Bayesian networks are particularly1990 G.F. Cooper and E. Herskovits. A Bayesian method forcon- structing Bayesian belief networks from databases.

Judea Pearl

2011-01-01T23:59:59.000Z

37

Wireless Networking  

Science Conference Proceedings (OSTI)

Over the past decade, the world has witnessed an explosion in the development and deployment of new wireless network technologies. From cellular mobile telephony to the ubiquitous "WiFi" networks in coffee-shops and airports, to the emerging WiMAX wireless ... Keywords: Networking

Anurag Kumar; D. Manjunath; Joy Kuri

2008-03-01T23:59:59.000Z

38

Towards network containment in malware analysis systems  

Science Conference Proceedings (OSTI)

This paper focuses on the containment and control of the network interaction generated by malware samples in dynamic analysis environments. A currently unsolved problem consists in the existing dependency between the execution of a malware sample and ... Keywords: malware containment, network traffic replay, protocol learning

Mariano Graziano; Corrado Leita; Davide Balzarotti

2012-12-01T23:59:59.000Z

39

Call and response: experiments in sampling the environment  

Science Conference Proceedings (OSTI)

Monitoring of environmental phenomena with embedded networked sensing confronts the challenges of both unpredictable variability in the spatial distribution of phenomena, coupled with demands for a high spatial sampling rate in three dimensions. For ... Keywords: adaptive sampling, distributed, mobile robotics, sensor network, task allocation

Maxim A. Batalin; Mohammad Rahimi; Yan Yu; Duo Liu; Aman Kansal; Gaurav S. Sukhatme; William J. Kaiser; Mark Hansen; Gregory J. Pottie; Mani Srivastava; Deborah Estrin

2004-11-01T23:59:59.000Z

40

Network Hopes  

Science Conference Proceedings (OSTI)

In this work, the authors examine four cases of municipalities that have attempted to create municipal-sponsored wireless broadband networks. In each of these cases, one of the reasons given for establishing the network was to engage the citizens in ... Keywords: civic engagement, municipalities, social capital, wireless broadband Internet

Andrea H. Tapia; Julio Angel Ortiz

2010-02-01T23:59:59.000Z

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


41

Network Simulation  

SciTech Connect

A detailed introduction to the design, implementation and use of network simulation tools is presented. The requirements and issues faced in the design of simulators for wired and wireless networks are discussed. Abstractions such as packet- and fluid-level network models are covered. Several existing simulations are given as examples, with details and rationales regarding design decisions presented. Issues regarding performance and scalability are discussed in detail, describing how one can utilize distributed simulation methods to increase the scale and performance of a simulation environment. Finally, a case study of two simulation tools is presented that have been developed using distributed simulation techniques. This text is essential to any student, researcher or network architect desiring a detailed understanding of how network simulation tools are designed, implemented, and used.

Fujimoto, Richard [ORNL; Perumalla, Kalyan S [ORNL; Riley, George F. [Georgia Institute of Technology

2006-01-01T23:59:59.000Z

42

Social Networks Applied  

Science Conference Proceedings (OSTI)

Social networks have interesting properties. Building computational models of these networks can help us understand and exploit them. This issue's essays examine applications of these networks' properties. Keywords: social networks, ontology, Semantic Web, network topology, friend of a friend

Steffen Staab; Pedro Domingos; Peter Mika; Jennifer Golbeck; Li Ding; Tim Finin; Anupam Joshi; Andrzej Nowak; Robin R. Vallacher

2005-01-01T23:59:59.000Z

43

Network Mobility Home Network Models  

E-Print Network (OSTI)

This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The IETF Trust (2007). This paper documents some of the usage patterns and the associated issues when deploying a Home Network for Network Mobility (NEMO)enabled Mobile Routers, conforming to the NEMO Basic Support. The aim here is specifically to provide some examples of organization of the Home Network, as they were discussed in NEMO-related mailing

P. Thubert; Cisco Systems; R. Wakikawa; V. Devarapalli

2007-01-01T23:59:59.000Z

44

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

SciTech Connect

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.

Kim, M; Leskovec, J

2011-11-14T23:59:59.000Z

45

Neural Networks  

SciTech Connect

Physicists use large detectors to measure particles created in high-energy collisions at particle accelerators. These detectors typically produce signals indicating either where ionization occurs along the path of the particle, or where energy is deposited by the particle. The data produced by these signals is fed into pattern recognition programs to try to identify what particles were produced, and to measure the energy and direction of these particles. Ideally, there are many techniques used in this pattern recognition software. One technique, neural networks, is particularly suitable for identifying what type of particle caused by a set of energy deposits. Neural networks can derive meaning from complicated or imprecise data, extract patterns, and detect trends that are too complex to be noticed by either humans or other computer related processes. To assist in the advancement of this technology, Physicists use a tool kit to experiment with several neural network techniques. The goal of this research is interface a neural network tool kit into Java Analysis Studio (JAS3), an application that allows data to be analyzed from any experiment. As the final result, a physicist will have the ability to train, test, and implement a neural network with the desired output while using JAS3 to analyze the results or output. Before an implementation of a neural network can take place, a firm understanding of what a neural network is and how it works is beneficial. A neural network is an artificial representation of the human brain that tries to simulate the learning process [5]. It is also important to think of the word artificial in that definition as computer programs that use calculations during the learning process. In short, a neural network learns by representative examples. Perhaps the easiest way to describe the way neural networks learn is to explain how the human brain functions. The human brain contains billions of neural cells that are responsible for processing information [2]. Each one of these cells acts as a simple processor. When individual cells interact with one another, the complex abilities of the brain are made possible. In neural networks, the input or data are processed by a propagation function that adds up the values of all the incoming data. The ending value is then compared with a threshold or specific value. The resulting value must exceed the activation function value in order to become output. The activation function is a mathematical function that a neuron uses to produce an output referring to its input value. [8] Figure 1 depicts this process. Neural networks usually have three components an input, a hidden, and an output. These layers create the end result of the neural network. A real world example is a child associating the word dog with a picture. The child says dog and simultaneously looks a picture of a dog. The input is the spoken word ''dog'', the hidden is the brain processing, and the output will be the category of the word dog based on the picture. This illustration describes how a neural network functions.

Smith, Patrick I.

2003-09-23T23:59:59.000Z

46

Natural networks  

E-Print Network (OSTI)

Scale-free and non-computable characteristics of natural networks are found to result from the least-time dispersal of energy. To consider a network as a thermodynamic system is motivated since ultimately everything that exists can be expressed in terms of energy. According to the variational principle, the network will grow and restructure when flows of energy diminish energy differences between nodes as well as relative to nodes in surrounding systems. The natural process will yield scale-free 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 non-deterministic process when there are two or more paths to consume a common source of energy. Although evolutionary courses of these non-Hamiltonian systems cannot be predicted, many mathematical functions, models and measures that characterize networks can be recognized as appropriate approximations of the thermodynamic equation of motion that has been derived from statistical physics of open systems.

Tuomo Hartonen; Arto Annila

2011-06-21T23:59:59.000Z

47

Brookhaven Women Engineers' Network  

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

Home | Mission | Other links BWEN Brookhaven Women Engineers' Network BNLlogo Brookhaven Women Engineers' Network Network for professionals in engineering, computing and...

48

PDSF Network Activity  

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

Statistics Network Activity Network Activity PDSF Network Uplinks to NERSC (dual 10 Gbps) NERSC Uplink to ESnet Last edited: 2011-03-31 22:20:59...

49

Network Connections  

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

Connecting to NERSC Using X Windows Connecting to NERSC with NX Transferring Data Network Performance Queues and Scheduling Job Logs & Analytics Training & Tutorials Software Accounts & Allocations Policies Data Analytics & Visualization Data Management Policies Science Gateways User Surveys NERSC Users Group User Announcements Help Operations for: Passwords & Off-Hours Status 1-800-66-NERSC, option 1 or 510-486-6821 Account Support https://nim.nersc.gov accounts@nersc.gov 1-800-66-NERSC, option 2 or 510-486-8612 Consulting http://help.nersc.gov consult@nersc.gov 1-800-66-NERSC, option 3 or 510-486-8611 Home » For Users » Network Connections Network Connections NERSC's resources can be accessed using SSH and related tools, grid tools, and via the web. This section explains how to connect to NERSC

50

Acceptance sampling methods for sample results verification  

SciTech Connect

This report proposes a statistical sampling method for use during the sample results verification portion of the validation of data packages. In particular, this method was derived specifically for the validation of data packages for metals target analyte analysis performed under United States Environmental Protection Agency Contract Laboratory Program protocols, where sample results verification can be quite time consuming. The purpose of such a statistical method is to provide options in addition to the ``all or nothing`` options that currently exist for sample results verification. The proposed method allows the amount of data validated during the sample results verification process to be based on a balance between risks and the cost of inspection.

Jesse, C.A.

1993-06-01T23:59:59.000Z

51

High Accuracy 14C Measurements for Atmospheric CO2 Samples from the South  

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

Carbon Isotopes » CIO 14C Measurements Carbon Isotopes » CIO 14C Measurements High Accuracy 14C Measurements for Atmospheric CO2 Samples from the South Pole and Point Barrow, Alaska by Accelerator Mass Spectrometry graphics South Pole Graphics graphics Pt. Barrow Graphics data South Pole Digital Data - Trends Only data South Pole Digital Data - Complete Data data Pt. Barrow Digital Data - Trends Only data Pt. Barrow Digital Data - Complete Data Investigators H. A. J. Meijer, M. H. Pertuisot and J. van der Plicht Centrum voor Isotopen Onderzook (Center for Isotope Research, CIO) University of Groningen The Netherlands http://www.rug.nl/ees/onderzoek/cio/index Period of Record: 1984-1992 Methods Accelerator mass spectrometry (AMS) was used to obtain 14CO2 measurements from flasks collected at the South Pole and Point Barrow, Alaska, USA, at

52

Networking support for underwater wireless networks.  

E-Print Network (OSTI)

?? Underwater wireless networks provide many opportunities for exploration, environmental monitoring, and military applications. Future growth of underwater networks seems promising as much of the (more)

Kredo, Kurtis B., II

2010-01-01T23:59:59.000Z

53

Supporting Advanced Communications Networks  

Science Conference Proceedings (OSTI)

... it will rely on revolutionary advances in network architecture. ... telemedicine), sensor and control networks (eg, Smart Grid, environmental monitoring ...

2012-02-13T23:59:59.000Z

54

Sample Preparation Laboratory Training - Course 204 | Sample...  

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

Sample Preparation Laboratory Training - Course 204 Who Should Attend This course is mandatory for: SLAC employees and non-employees who need unescorted access to SSRL or LCLS...

55

Graceful network state migrations  

Science Conference Proceedings (OSTI)

A significant fraction of network events (such as topology or route changes) and the resulting performance degradation stem from premeditated network management and operational tasks. This paper introduces a general class of Graceful Network State Migration ... Keywords: communication system operations and management, computer network management, network maintenance, network upgrade

Saqib Raza; Yuanbo Zhu; Chen-Nee Chuah

2011-08-01T23:59:59.000Z

56

Network Economics Anna Nagurney  

E-Print Network (OSTI)

: · Transportation Networks ·the Internet · Financial Networks · Supply Chains ·Electric Power Generation power generation and distribution networks can be reformulated as transportation network equilibrium · Brief History of the Science of Networks · Interdisciplinary Impact of Networks · User-Optimization vs

Nagurney, Anna

57

A new algorithm for sampling CSP solutions uniformly at random  

Science Conference Proceedings (OSTI)

The paper presents a method for generating solutions of a constraint satisfaction problem (CSP) uniformly at random. Our method relies on expressing the constraint network as a uniform probability distribution over its solutions and then sampling from ...

Vibhav Gogate; Rina Dechter

2006-09-01T23:59:59.000Z

58

Lossy Data Aggregation in Multihop Wireless Sensor Networks  

Science Conference Proceedings (OSTI)

In wireless sensor networks, in-network data aggregation is an efficient way to reduce energy consumption in network. However, most of the existing data aggregation scheduling methods try to aggregate the data from all the nodes at all time-instances. ... Keywords: Data Loss, Data Sampling, Energy Efficiency, Lossy Data Aggregation

Guojun Dai; Jianhui Zhang; Shaojie Tang; Xingfa Shen; Changping Lv

2009-12-01T23:59:59.000Z

59

Securing network access in wireless sensor networks  

Science Conference Proceedings (OSTI)

In wireless sensor networks, it is critical to restrict the network access only to eligible sensor nodes, while messages from outsiders will not be forwarded in the networks. In this paper, we present the design, implementation, and evaluation of a secure ... Keywords: elliptic curve cryptography, security, sensor networks

Kun Sun; An Liu; Roger Xu; Peng Ning; Douglas Maughan

2009-03-01T23:59:59.000Z

60

September 2004 Water Sampling  

Office of Legacy Management (LM)

Sampling at the Sampling at the Shirley Basin South, Wyoming, Disposal Site September 2013 LMS/SBS/S00613 This page intentionally left blank U.S. Department of Energy DVP-June 2013, Shirley Basin South, Wyoming September 2013 RIN 13065426 Page i Contents Sampling Event Summary ...............................................................................................................1 Shirley Basin South, Wyoming, Disposal Site Sample Location Map ............................................3 Data Assessment Summary ..............................................................................................................5 Water Sampling Field Activities Verification Checklist .............................................................7

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


61

Rain sampling device  

DOE Patents (OSTI)

The present invention constitutes a rain sampling device adapted for independent operation at locations remote from the user which allows rainfall to be sampled in accordance with any schedule desired by the user. The rain sampling device includes a mechanism for directing wet precipitation into a chamber, a chamber for temporarily holding the precipitation during the process of collection, a valve mechanism for controllably releasing samples of the precipitation from the chamber, a means for distributing the samples released from the holding chamber into vessels adapted for permanently retaining these samples, and an electrical mechanism for regulating the operation of the device. 11 figures.

Nelson, D.A.; Tomich, S.D.; Glover, D.W.; Allen, E.V.; Hales, J.M.; Dana, M.T.

1991-05-14T23:59:59.000Z

62

Deployment and organization strategies for sampling- interpolation sensor networks  

E-Print Network (OSTI)

smart buildings and disaster response are only a fewwildlife tracking, disaster response and smart physical

Liaskovitis, Periklis G.

2009-01-01T23:59:59.000Z

63

Reformulation and Sampling to Solve a Stochastic Network ...  

E-Print Network (OSTI)

Jan 31, 2006 ... There is a finite budget K available for interdiction, and the cost of .... scenarios S so that FT (x) is an unbiased estimator for F(x) for all x, ..... program MLPk* (for the last iteration k?) are all retained and used later in the solution process. ...... resources at Lehigh are provided in part by equipment purchased...

64

Quality Reference Samples  

Science Conference Proceedings (OSTI)

Peer-reviewed fats and oils related performance-based control samples for lab quality assurance and quality control. Quality Reference Samples Certified Reference Materials (CRM) aocs certified Certified Reference Materials chemists CRM fat fats lab labo

65

September 2004 Water Sampling  

Office of Legacy Management (LM)

information documented on the field data sheets? Yes 18. Was the presence or absence of ice in the cooler documented at every sample location? NA Sample chilling was not required....

66

September 2004 Water Sampling  

Office of Legacy Management (LM)

3 3 Groundwater and Surface Water Sampling at the Slick Rock East and West, Colorado, Processing Sites November 2013 LMS/SRE/SRW/S0913 This page intentionally left blank U.S. Department of Energy DVP-September 2013, Slick Rock, Colorado November 2013 RIN 13095593 Page i Contents Sampling Event Summary ...............................................................................................................1 Slick Rock East and West, Colorado, Processing Sites, Sample Location Map .............................5 Data Assessment Summary ..............................................................................................................7 Water Sampling Field Activities Verification Checklist .............................................................9

67

September 2004 Water Sampling  

Office of Legacy Management (LM)

Old and New Rifle, Old and New Rifle, Colorado, Processing Sites August 2013 LMS/RFN/RFO/S00613 This page intentionally left blank U.S. Department of Energy DVP-June 2013, Rifle, Colorado August 2013 RIN 13065380 Page i Contents Sampling Event Summary ...............................................................................................................1 Sample Location Map, New Rifle, Colorado, Processing Site ........................................................5 Sample Location Map, Old Rifle, Colorado, Processing Site ..........................................................6 Data Assessment Summary ..............................................................................................................7 Water Sampling Field Activities Verification Checklist .............................................................9

68

September 2004 Water Sampling  

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

3 3 Groundwater and Surface Water Sampling at the Tuba City, Arizona, Disposal Site November 2013 LMS/TUB/S00813 This page intentionally left blank U.S. Department of Energy DVP-August 2013, Tuba City, Arizona November 2013 RIN 13085553 Page i Contents Sampling Event Summary ...............................................................................................................1 Tuba City, Arizona, Disposal Site, Sample Location Map ..............................................................7 Data Assessment Summary ..............................................................................................................9 Water Sampling Field Activities Verification Checklist ...........................................................11

69

September 2004 Water Sampling  

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

and October 2013 and October 2013 Groundwater Sampling at the Bluewater, New Mexico, Disposal Site December 2013 LMS/BLU/S00813 This page intentionally left blank U.S. Department of Energy DVP-August and October 2013, Bluewater, New Mexico December 2013 RIN 13085537 and 13095651 Page i Contents Sampling Event Summary ...............................................................................................................1 Private Wells Sampled August 2013 and October 2013, Bluewater, NM, Disposal Site ................3 Data Assessment Summary ..............................................................................................................5 Water Sampling Field Activities Verification Checklist .............................................................7

70

On the interdependence of routing and data compression in multi-hop sensor networks  

Science Conference Proceedings (OSTI)

We consider a problem of broadcast communication in a multi-hop sensor network, in which samples of a random field are collected at each node of the network, and the goal is for all nodes to obtain an estimate of the entire field within a prescribed ... Keywords: cross-layer interactions, multi-hop networks, routing, sensor networks, source coding

Anna Scaglione; Sergio D. Servetto

2002-09-01T23:59:59.000Z

71

September 2004 Water Sampling  

Office of Legacy Management (LM)

Riverton, Wyoming, Riverton, Wyoming, Processing Site September 2013 LMS/RVT/S00613 This page intentionally left blank U.S. Department of Energy DVP-June 2013, Riverton, Wyoming September 2013 RIN 13065379 Page i Contents Sampling Event Summary ...............................................................................................................1 Riverton, Wyoming, Processing Site, Sample Location Map .........................................................5 Data Assessment Summary ..............................................................................................................7 Water Sampling Field Activities Verification Checklist .............................................................9 Laboratory Performance Assessment ........................................................................................11

72

Science-Driven Network  

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

Science-Driven Network Requirements for ESnet Update to the 2002 Office of Science Networking Requirements Workshop Report February 21, 2006 1-1 Science-Driven Network Requirements...

73

Network Programming with Perl  

Science Conference Proceedings (OSTI)

From the Book:The network is everywhere. At the office, machines are wired together into local area networks, and the local networks are interconnected via the Internet. At home, personal computers are either intermittently connected to the Internet, ...

Lincoln Stein

2000-12-01T23:59:59.000Z

74

A generic language for application-specific flow sampling  

Science Conference Proceedings (OSTI)

Flow records gathered by routers provide valuable coarse-granularity traffic information for several measurement-related network applications. However, due to high volumes of traffic, flow records need to be sampled before they are gathered. Current ... Keywords: application-specific traffic monitoring, flow sampling, language design

Harsha V. Madhyastha; Balachander Krishnamurthy

2008-03-01T23:59:59.000Z

75

Public Safety Broadband Network  

Science Conference Proceedings (OSTI)

... EMNTG) performs RF network analysis and optimization of ... Network analyses can be used to predict ... of an incident area communication scenario. ...

2012-02-22T23:59:59.000Z

76

ASCR Science Network Requirements  

E-Print Network (OSTI)

ASCR Science Network Requirements Office of AdvancedScientific Computing Research, DOE Office of ScienceEnergy Sciences Network Gaithersburg, MD April 15 and 16,

Dart, Eli

2010-01-01T23:59:59.000Z

77

Sampling diffusive transition paths  

SciTech Connect

We address the problem of sampling double-ended diffusive paths. The ensemble of paths is expressed using a symmetric version of the Onsager-Machlup formula, which only requires evaluation of the force field and which, upon direct time discretization, gives rise to a symmetric integrator that is accurate to second order. Efficiently sampling this ensemble requires avoiding the well-known stiffness problem associated with sampling infinitesimal Brownian increments of the path, as well as a different type of stiffness associated with sampling the coarse features of long paths. The fine-features sampling stiffness is eliminated with the use of the fast sampling algorithm (FSA), and the coarse-feature sampling stiffness is avoided by introducing the sliding and sampling (S&S) algorithm. A key feature of the S&S algorithm is that it enables massively parallel computers to sample diffusive trajectories that are long in time. We use the algorithm to sample the transition path ensemble for the structural interconversion of the 38-atom Lennard-Jones cluster at low temperature.

F. Miller III, Thomas; Predescu, Cristian

2006-10-12T23:59:59.000Z

78

September 2004 Water Sampling  

Office of Legacy Management (LM)

Green River, Utah, Disposal Site Green River, Utah, Disposal Site August 2013 LMS/GRN/S00613 This page intentionally left blank U.S. Department of Energy DVP-June 2013, Green River, Utah August 2013 RIN 13065402 Page i Contents Sampling Event Summary ...............................................................................................................1 Data Assessment Summary ..............................................................................................................7 Water Sampling Field Activities Verification Checklist .............................................................9 Laboratory Performance Assessment ........................................................................................11 Sampling Quality Control Assessment ......................................................................................18

79

Beacon Project - Unpredictable Sampling  

Science Conference Proceedings (OSTI)

... or undetected tampering), with the random number generator used for sampling can lead to erroneous estimates of the percentage of faulty parts. ...

2013-07-25T23:59:59.000Z

80

FANS - Sample Change  

Science Conference Proceedings (OSTI)

... result of neutrons with incident energies higher than ... between the sample position and the detector bank. ... 60 to 300 seconds per energy point and ...

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


81

September 2004 Water Sampling  

Office of Legacy Management (LM)

field procedures? Yes List any Program Directives or other documents, SOPs, instructions. Work Order Letter dated May 1, 2013. Program Directive SHL 2013 01. 2. Were the sampling...

82

FANS - Sample Change  

Science Conference Proceedings (OSTI)

... This is achieved by placing a cadmium shield between the sample position and the detector bank. In order to place the ...

83

Networks, Information & Social Capital  

E-Print Network (OSTI)

This paper investigates how information flows enable social networks to constitute social capital. By analyzing

Aral, Sinan

2008-01-26T23:59:59.000Z

84

FES Science Network Requirements  

E-Print Network (OSTI)

FES Science Network Requirements Report of the Fusion Energy Sciences Network Requirements Workshop Conducted March 13 and 14, 2008 #12;FES Science Network Requirements Workshop Fusion Energy Sciences Program Office, DOE Office of Science Energy Sciences Network Gaithersburg, MD ­ March 13 and 14, 2008 ESnet

Geddes, Cameron Guy Robinson

85

Wireless sensor network survey  

Science Conference Proceedings (OSTI)

A wireless sensor network (WSN) has important applications such as remote environmental monitoring and target tracking. This has been enabled by the availability, particularly in recent years, of sensors that are smaller, cheaper, and intelligent. These ... Keywords: Protocols, Sensor network deployment, Sensor network services, Survey, Wireless sensor network

Jennifer Yick; Biswanath Mukherjee; Dipak Ghosal

2008-08-01T23:59:59.000Z

86

Sampling system and method  

DOE Patents (OSTI)

The present disclosure provides an apparatus and method for coupling conduit segments together. A first pump obtains a sample and transmits it through a first conduit to a reservoir accessible by a second pump. The second pump further conducts the sample from the reservoir through a second conduit.

Decker, David L.; Lyles, Brad F.; Purcell, Richard G.; Hershey, Ronald Lee

2013-04-16T23:59:59.000Z

87

2003 CBECS Sample Design  

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

Technical Information > Sample Design Technical Information > Sample Design How the Survey Was Conducted 2003 Commercial Buildings Energy Consumption Survey: Sample Design Introduction The Commercial Buildings Energy Consumption Survey (CBECS) is conducted quadrennially by the Energy Information Administration (EIA) to provide basic statistical information about energy consumption and expenditures in U.S. commercial buildings and information about energy-related characteristics of these buildings. The survey is based upon a sample of commercial buildings selected according to the sample design requirements described below. A “building,” as opposed to an “establishment,” is the basic unit of analysis for the CBECS because the building is the energy-consuming unit. The 2003 CBECS was the eighth survey conducted since 1979

88

Biological sample collector  

DOE Patents (OSTI)

A biological sample collector is adapted to a collect several biological samples in a plurality of filter wells. A biological sample collector may comprise a manifold plate for mounting a filter plate thereon, the filter plate having a plurality of filter wells therein; a hollow slider for engaging and positioning a tube that slides therethrough; and a slide case within which the hollow slider travels to allow the tube to be aligned with a selected filter well of the plurality of filter wells, wherein when the tube is aligned with the selected filter well, the tube is pushed through the hollow slider and into the selected filter well to sealingly engage the selected filter well and to allow the tube to deposit a biological sample onto a filter in the bottom of the selected filter well. The biological sample collector may be portable.

Murphy, Gloria A. (French Camp, CA)

2010-09-07T23:59:59.000Z

89

Sample Changes and Issues  

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

Sample and Model Issues Sample and Model Issues Summary Our comprehensive review of the EIA 914 has confirmed that discrepancies can arise between estimates for December of one year and January of the next. These are most evident for Texas estimates between December 2008 and January 2009. Reports now available from HPDI show that production for all the companies we sampled in both 2008 and 2009 rose by about 60 million cubic feet per day (MMcf/d) in January and that total production in Texas rose by a similar amount. Our estimate was a decrease of 360 MMcf/d. Why the difference? Computationally, EIA-914 estimates depend on two factors: * Reports from the companies in the survey sample * An expansion factor to estimate total production from the sample's reported

90

Sample push out fixture  

DOE Patents (OSTI)

This invention generally relates to the remote removal of pelletized samples from cylindrical containment capsules. V-blocks are used to receive the samples and provide guidance to push out rods. Stainless steel liners fit into the v-channels on the v-blocks which permits them to be remotely removed and replaced or cleaned to prevent cross contamination between capsules and samples. A capsule holder securely holds the capsule while allowing manual up/down and in/out movement to align each sample hole with the v-blocks. Both end sections contain identical v-blocks; one that guides the drive out screw and rods or manual push out rods and the other to receive the samples as they are driven out of the capsule.

Biernat, John L.

2000-02-22T23:59:59.000Z

91

September 2004 Water Sampling  

Office of Legacy Management (LM)

was not identified at many groundwater locations. 18. Was the presence or absence of ice in the cooler documented at every sample location? Yes 19. Were water levels measured...

92

Computer Science Sample Occupations  

E-Print Network (OSTI)

Computer Science Sample Occupations COMPUTER OPERATIONS Computer Hardware/ Software Engineer Computer Operator Database Manager/ Administrator Data Entry Operator Operations Manager DESIGN & MANUFACTURING, ENGINEERING Coder CAD Computer Applications Engineers Computer Research Scientist Computer

Ronquist, Fredrik

93

SAMPLING AND ANALYSIS PROTOCOLS  

SciTech Connect

Radiological sampling and analyses are performed to collect data for a variety of specific reasons covering a wide range of projects. These activities include: Effluent monitoring; Environmental surveillance; Emergency response; Routine ambient monitoring; Background assessments; Nuclear license termination; Remediation; Deactivation and decommissioning (D&D); and Waste management. In this chapter, effluent monitoring and environmental surveillance programs at nuclear operating facilities and radiological sampling and analysis plans for remediation and D&D activities will be discussed.

Jannik, T; P Fledderman, P

2007-02-09T23:59:59.000Z

94

Liquid sampling system  

DOE Patents (OSTI)

A conduit extends from a reservoir through a sampling station and back to the reservoir in a closed loop. A jet ejector in the conduit establishes suction for withdrawing liquid from the reservoir. The conduit has a self-healing septum therein upstream of the jet ejector for receiving one end of a double-ended cannula, the other end of which is received in a serum bottle for sample collection. Gas is introduced into the conduit at a gas bleed between the sample collection bottle and the reservoir. The jet ejector evacuates gas from the conduit and the bottle and aspirates a column of liquid from the reservoir at a high rate. When the withdrawn liquid reaches the jet ejector the rate of flow therethrough reduces substantially and the gas bleed increases the pressure in the conduit for driving liquid into the sample bottle, the gas bleed forming a column of gas behind the withdrawn liquid column and interrupting the withdrawal of liquid from the reservoir. In the case of hazardous and toxic liquids, the sample bottle and the jet ejector may be isolated from the reservoir and may be further isolated from a control station containing remote manipulation means for the sample bottle and control valves for the jet ejector and gas bleed.

Larson, Loren L. (Idaho Falls, ID)

1987-01-01T23:59:59.000Z

95

Liquid sampling system  

DOE Patents (OSTI)

A conduit extends from a reservoir through a sampling station and back to the reservoir in a closed loop. A jet ejector in the conduit establishes suction for withdrawing liquid from the reservoir. The conduit has a self-healing septum therein upstream of the jet ejector for receiving one end of a double-ended cannula, the other end of which is received in a serum bottle for sample collection. Gas is introduced into the conduit at a gas bleed between the sample collection bottle and the reservoir. The jet ejector evacuates gas from the conduit and the bottle and aspirates a column of liquid from the reservoir at a high rate. When the withdrawn liquid reaches the jet ejector the rate of flow therethrough reduces substantially and the gas bleed increases the pressure in the conduit for driving liquid into the sample bottle, the gas bleed forming a column of gas behind the withdrawn liquid column and interrupting the withdrawal of liquid from the reservoir. In the case of hazardous and toxic liquids, the sample bottle and the jet ejector may be isolated from the reservoir and may be further isolated from a control station containing remote manipulation means for the sample bottle and control valves for the jet ejector and gas bleed. 5 figs.

Larson, L.L.

1984-09-17T23:59:59.000Z

96

Network Observability Transitions  

E-Print Network (OSTI)

In the modeling, monitoring, and control of complex networks, a fundamental problem concerns the comprehensive determination of the state of the system from limited measurements. Using power grids as example networks, we show that this problem leads to a new type of percolation transition, here termed a {\\it network observability transition}, which we solve analytically for the configuration model. We also demonstrate a dual role of the network's community structure, which both facilitates optimal measurement placement and renders the networks substantially more sensitive to `observability attacks'. Aside from their immediate implications for the development of smart grids, these results provide insights into decentralized biological, social, and technological networks.

Yang, Yang; Motter, Adilson E; 10.1103/PhysRevLett.109.258701

2013-01-01T23:59:59.000Z

97

Fluid sampling system  

DOE Patents (OSTI)

An fluid sampling system allows sampling of radioactive liquid without spillage. A feed tank is connected to a liquid transfer jet powered by a pumping chamber pressurized by compressed air. The liquid is pumped upwardly into a sampling jet of a venturi design having a lumen with an inlet, an outlet, a constricted middle portion, and a port located above the constricted middle portion. The liquid is passed under pressure through the constricted portion causing its velocity to increase and its pressure to decreased, thereby preventing liquid from escaping. A septum sealing the port can be pierced by a two pointed hollow needle leading into a sample bottle also sealed by a pierceable septum affixed to one end. The bottle is evacuated by flow through the sample jet, cyclic variation in the sampler jet pressure periodically leaves the evacuated bottle with lower pressure than that of the port, thus causing solution to pass into the bottle. The remaining solution in the system is returned to the feed tank via a holding tank.

Houck, Edward D. (Idaho Falls, ID)

1994-01-01T23:59:59.000Z

98

Fluid sampling system  

DOE Patents (OSTI)

This invention comprises a fluid sampling system which allows sampling of radioactive liquid without spillage. A feed tank is connected to a liquid transfer jet powered by a pumping chamber pressurized by compressed air. The liquid is pumped up into a sampling jet of venturi design having a lumen with an inlet, an outlet, a constricted middle portion, and a port located above the constricted middle portion. The liquid is passed under pressure through the constricted portion causing its velocity to increase and its pressure to decrease, thereby preventing liquid from escaping. A septum sealing the port can be pierced by a two pointed hollow needle leading into a sample bottle also sealed by a pierceable septum affixed to one end. The bottle is evacuated by flow through the sample jet, cyclic variation in the sampler jet pressure periodicially leaves the evacuated bottle with lower pressure than that of the port, thus causing solution to pass into the bottle. The remaining solution in the system is returned to the feed tank via a holding tank.

Houck, E.D.

1993-12-31T23:59:59.000Z

99

Fluid sampling system  

DOE Patents (OSTI)

An fluid sampling system allows sampling of radioactive liquid without spillage. A feed tank is connected to a liquid transfer jet powered by a pumping chamber pressurized by compressed air. The liquid is pumped upwardly into a sampling jet of a venturi design having a lumen with an inlet, an outlet, a constricted middle portion, and a port located above the constricted middle portion. The liquid is passed under pressure through the constricted portion causing its velocity to increase and its pressure to be decreased, thereby preventing liquid from escaping. A septum sealing the port can be pierced by a two pointed hollow needle leading into a sample bottle also sealed by a pierceable septum affixed to one end. The bottle is evacuated by flow through the sample jet, cyclic variation in the sampler jet pressure periodically leaves the evacuated bottle with lower pressure than that of the port, thus causing solution to pass into the bottle. The remaining solution in the system is returned to the feed tank via a holding tank. 4 figs.

Houck, E.D.

1994-10-11T23:59:59.000Z

100

Viscous sludge sample collector  

DOE Patents (OSTI)

A vertical core sample collection system for viscous sludge. A sample tube's upper end has a flange and is attached to a piston. The tube and piston are located in the upper end of a bore in a housing. The bore's lower end leads outside the housing and has an inwardly extending rim. Compressed gas, from a storage cylinder, is quickly introduced into the bore's upper end to rapidly accelerate the piston and tube down the bore. The lower end of the tube has a high sludge entering velocity to obtain a full-length sludge sample without disturbing strata detail. The tube's downward motion is stopped when its upper end flange impacts against the bore's lower end inwardly extending rim.

Beitel, George A. (Richland, WA)

1983-01-01T23:59:59.000Z

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


101

Connectibles : tangible social networking  

E-Print Network (OSTI)

This thesis presents "Connectibles," an instantiation of a tangible social network, a new type of social network application rooted in physical objects and real world social behavior. This research is inspired by social ...

Kalanithi, Jeevan James

2007-01-01T23:59:59.000Z

102

Network game and boosting  

Science Conference Proceedings (OSTI)

We propose an ensemble learning method called Network Boosting which combines weak learners together based on a random graph (network). A theoretic analysis based on the game theory shows that the algorithm can learn the target hypothesis asymptotically. ...

Shijun Wang; Changshui Zhang

2005-10-01T23:59:59.000Z

103

Networking Value Center  

Science Conference Proceedings (OSTI)

Identifies opportunities and structures that foster networking amongst participants for the purpose of building value into the experience. Networking Value Center AOCS History and Governance about us aocs committees contact us division council fat

104

Network coded wireless architecture  

E-Print Network (OSTI)

Wireless mesh networks promise cheap Internet access, easy deployment, and extended range. In their current form, however, these networks suffer from both limited throughput and low reliability; hence they cannot meet the ...

Katti, Sachin Rajsekhar

2008-01-01T23:59:59.000Z

105

Synchronisation in data networks  

Science Conference Proceedings (OSTI)

Synchronisation is of fundamental importance to the performance of digital networks, but the effects of poor network timing on the information being transported are often largely ignored. This paper provides an introduction to the subject of synchronisation, ...

T. S. Brown; M. J. Gilson; M. G. Mason

1998-01-01T23:59:59.000Z

106

Multifunctional Mesoscale Observing Networks  

Science Conference Proceedings (OSTI)

More than 120 scientists, engineers, administrators, and users met on 810 December 2003 in a workshop format to discuss the needs for enhanced three-dimensional mesoscale observing networks. Improved networks are seen as being critical to ...

Walter F. Dabberdt; Thomas W. Schlatter; Frederick H. Carr; Elbert W. Joe Friday; David Jorgensen; Steven Koch; Maria Pirone; F. Martin Ralph; Juanzhen Sun; Patrick Welsh; James W. Wilson; Xiaolei Zou

2005-07-01T23:59:59.000Z

107

Piecewise truckload network procurement  

E-Print Network (OSTI)

Faced with procuring transportation over its freight network, a shipper can either bid out all of its lanes at once, or somehow divide up the network and bid it out in pieces. For large shippers, practical concerns such ...

Huang, Jefferson

2011-01-01T23:59:59.000Z

108

Design of a low-cost underwater acoustic modem for short- range sensor networks.  

E-Print Network (OSTI)

??Small, dense, wireless sensor networks are beginning to revolutionize our understanding of the physical world by providing fine resolution sampling of the surrounding environment. The (more)

Benson, Bridget

2010-01-01T23:59:59.000Z

109

Network protection with service guarantees  

E-Print Network (OSTI)

With the increasing importance of communication networks comes an increasing need to protect against network failures. Traditional network protection has been an "all-or-nothing" approach: after any failure, all network ...

Kuperman, Gregory

2013-01-01T23:59:59.000Z

110

Network coding: an instant primer  

Science Conference Proceedings (OSTI)

Network coding is a new research area that may have interesting applications in practical networking systems. With network coding, intermediate nodes may send out packets that are linear combinations of previously received information. There are two ... Keywords: network coding

Christina Fragouli; Jean-Yves Le Boudec; Jrg Widmer

2006-01-01T23:59:59.000Z

111

Networked Control Systems Group  

Science Conference Proceedings (OSTI)

... and deploys measurement science for sensor networks and control systems used in manufacturing, construction, and other cyber-physical systems ...

2012-08-30T23:59:59.000Z

112

ANNULAR IMPACTOR SAMPLING DEVICE  

DOE Patents (OSTI)

A high-rate air sampler capable of sampling alphaemitting particles as small as 0.5 microns is described. The device is a cylindrical shaped cup that fits in front of a suction tube and which has sticky grease coating along its base. Suction forces contaminated air against the periodically monitored particle absorbing grease.

Tait, G.W.C.

1959-03-31T23:59:59.000Z

113

Outsourcing network functionality  

Science Conference Proceedings (OSTI)

This paper presents an architecture for adding functionality to networks via outsourcing. In this model, the enterprise network only forwards data; any additional processing is performed by external Feature Providers (FPs). FPs provide and manage ... Keywords: jingling, middleboxes, network services, outsourcing, sdn

Glen Gibb; Hongyi Zeng; Nick McKeown

2012-08-01T23:59:59.000Z

114

Energy proportional datacenter networks  

Science Conference Proceedings (OSTI)

Numerous studies have shown that datacenter computers rarely operate at full utilization, leading to a number of proposals for creating servers that are energy proportional with respect to the computation that they are performing. In this paper, ... Keywords: datacenter networks, interconnection networks, low-power networking

Dennis Abts; Michael R. Marty; Philip M. Wells; Peter Klausler; Hong Liu

2010-06-01T23:59:59.000Z

115

Cyber and Network Security Homepage  

Science Conference Proceedings (OSTI)

Cyber and Network Security. Cyber and network security is focused on ensuring three security objectives of information ...

2010-10-05T23:59:59.000Z

116

Networks in Cognitive Science  

E-Print Network (OSTI)

Networks of interconnected nodes have long played a key role in cognitive science, from artificial neural networks to spreading activation models of semantic memory. Recently, however, a new Network Science has been developed, providing insights into the emergence of global, system-scale properties in contexts as diverse as the Internet, metabolic reactions or collaborations among scientists. Today, the inclusion of network theory into cognitive sciences, and the expansion of complex systems science, promises to significantly change the way in which the organization and dynamics of cognitive and behavioral processes are understood. In this paper, we review recent contributions of network theory at different levels and domains within the cognitive sciences.

Baronchelli, Andrea; Pastor-Satorras, Romualdo; Chater, Nick; Christiansen, Morten H

2013-01-01T23:59:59.000Z

117

Network Characterization Service (NCS)  

Science Conference Proceedings (OSTI)

Distributed applications require information to effectively utilize the network. Some of the information they require is the current and maximum bandwidth, current and minimum latency, bottlenecks, burst frequency, and congestion extent. This type of information allows applications to determine parameters like optimal TCP buffer size. In this paper, we present a cooperative information-gathering tool called the network characterization service (NCS). NCS runs in user space and is used to acquire network information. Its protocol is designed for scalable and distributed deployment, similar to DNS. Its algorithms provide efficient, speedy and accurate detection of bottlenecks, especially dynamic bottlenecks. On current and future networks, dynamic bottlenecks do and will affect network performance dramatically.

Jin, Guojun; Yang, George; Crowley, Brian; Agarwal, Deborah

2001-06-06T23:59:59.000Z

118

Network Routing Capacity  

E-Print Network (OSTI)

We define the routing capacity of a network to be the supremum of all possible fractional message throughputs achievable by routing. We prove that the routing capacity of every network is achievable and rational, we present an algorithm for its computation, and we prove that every non-negative rational number is the routing capacity of some network. We also determine the routing capacity for various example networks. Finally, we discuss the extension of routing capacity to fractional coding solutions and show that the coding capacity of a network is independent of the alphabet used.

Jillian Cannons; Randall Dougherty; Christopher Freiling; Kenneth Zeger

2005-01-01T23:59:59.000Z

119

ITOUGH2 sample problems  

DOE Green Energy (OSTI)

This report contains a collection of ITOUGH2 sample problems. It complements the ITOUGH2 User`s Guide [Finsterle, 1997a], and the ITOUGH2 Command Reference [Finsterle, 1997b]. ITOUGH2 is a program for parameter estimation, sensitivity analysis, and uncertainty propagation analysis. It is based on the TOUGH2 simulator for non-isothermal multiphase flow in fractured and porous media [Preuss, 1987, 1991a]. The report ITOUGH2 User`s Guide [Finsterle, 1997a] describes the inverse modeling framework and provides the theoretical background. The report ITOUGH2 Command Reference [Finsterle, 1997b] contains the syntax of all ITOUGH2 commands. This report describes a variety of sample problems solved by ITOUGH2. Table 1.1 contains a short description of the seven sample problems discussed in this report. The TOUGH2 equation-of-state (EOS) module that needs to be linked to ITOUGH2 is also indicated. Each sample problem focuses on a few selected issues shown in Table 1.2. ITOUGH2 input features and the usage of program options are described. Furthermore, interpretations of selected inverse modeling results are given. Problem 1 is a multipart tutorial, describing basic ITOUGH2 input files for the main ITOUGH2 application modes; no interpretation of results is given. Problem 2 focuses on non-uniqueness, residual analysis, and correlation structure. Problem 3 illustrates a variety of parameter and observation types, and describes parameter selection strategies. Problem 4 compares the performance of minimization algorithms and discusses model identification. Problem 5 explains how to set up a combined inversion of steady-state and transient data. Problem 6 provides a detailed residual and error analysis. Finally, Problem 7 illustrates how the estimation of model-related parameters may help compensate for errors in that model.

Finsterle, S.

1997-11-01T23:59:59.000Z

120

Multi-AUV control and adaptive sampling  

E-Print Network (OSTI)

Abstract Multi-AUV operations have much to offer a variety of underwater applications. With sensors to measure the environment and coordination that is appropriate to critical spatial and temporal scales, the group can perform important tasks such as adaptive ocean sampling. We describe a methodology for cooperative control of multiple vehicles based on virtual bodies and artificial potentials (VBAP). This methodology allows for adaptable formation control and can be used for missions such as gradient climbing and feature tracking in an uncertain environment. We discuss our implementation on a fleet of autonomous underwater gliders and present results from sea trials in Monterey Bay in August 2003. These at-sea demonstrations were performed as part of the Autonomous Ocean Sampling Network (AOSN) II project.

Monterey Bay; Edward Fiorelli; Naomi Ehrich Leonard; Pradeep Bhatta; Derek Paley; Ralf Bachmayer

2004-01-01T23:59:59.000Z

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


121

Energy Sciences Network (ESnet)  

NLE Websites -- All DOE Office Websites

ESnet ESnet ESnet ESnet ESnet ESnet » MyESnet search... Go Home Network Overview Tools Peering Information Interactive Network Map Network Maps Connected Sites Services Overview ECS Audio/Video Conferencing Fasterdata IPv6 Network Network Performance Tools (perfSONAR) ESnet OID Registry PGP Key Service Virtual Circuits (OSCARS) DOE Grids Service Transition R&D Overview 100G Testbed Virtual Circuits (OSCARS) Performance (perfSONAR) Tools Development Green Networking Authentication & Trust Federation (ATF) Partnerships News & Publications ESnet in the News ESnet News Publications and Presentations Galleries ESnet Awards and Honors About ESnet Overview ESnet Staff Governance Our Network Case Studies ESnet Strategic Plan ESnet Organizational Chart ESnet History Science Requirements Careers Contact Us

122

Network topology analysis.  

SciTech Connect

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.

Kalb, Jeffrey L.; Lee, David S.

2008-01-01T23:59:59.000Z

123

NID Copper Sample Analysis  

SciTech Connect

The current focal point of the nuclear physics program at PNNL is the MAJORANA DEMONSTRATOR, and the follow-on Tonne-Scale experiment, a large array of ultra-low background high-purity germanium detectors, enriched in 76Ge, designed to search for zero-neutrino double-beta decay (0???). This experiment requires the use of germanium isotopically enriched in 76Ge. The MAJORANA DEMONSTRATOR is a DOE and NSF funded project with a major science impact. The DEMONSTRATOR will utilize 76Ge from Russia, but for the Tonne-Scale experiment it is hoped that an alternate technology, possibly one under development at Nonlinear Ion Dynamics (NID), will be a viable, US-based, lower-cost source of separated material. Samples of separated material from NID require analysis to determine the isotopic distribution and impurities. DOE is funding NID through an SBIR grant for development of their separation technology for application to the Tonne-Scale experiment. The Environmental Molecular Sciences facility (EMSL), a DOE user facility at PNNL, has the required mass spectroscopy instruments for making isotopic measurements that are essential to the quality assurance for the MAJORANA DEMONSTRATOR and for the development of the future separation technology required for the Tonne-Scale experiment. A sample of isotopically separated copper was provided by NID to PNNL in January 2011 for isotopic analysis as a test of the NID technology. The results of that analysis are reported here. A second sample of isotopically separated copper was provided by NID to PNNL in August 2011 for isotopic analysis as a test of the NID technology. The results of that analysis are also reported here.

Kouzes, Richard T.; Zhu, Zihua

2011-09-12T23:59:59.000Z

124

Adaptive rate sampling and filtering based on level crossing sampling  

Science Conference Proceedings (OSTI)

The recent sophistications in areas of mobile systems and sensor networks demand more and more processing resources. In order to maintain the system autonomy, energy saving is becoming one of the most difficult industrial challenges, in mobile computing. ...

Saeed Mian Qaisar; Laurent Fesquet; Marc Renaudin

2009-01-01T23:59:59.000Z

125

NID Copper Sample Analysis  

Science Conference Proceedings (OSTI)

The current focal point of the nuclear physics program at PNNL is the MAJORANA DEMONSTRATOR, and the follow-on Tonne-Scale experiment, a large array of ultra-low background high-purity germanium detectors, enriched in 76Ge, designed to search for zero-neutrino double-beta decay (0???). This experiment requires the use of germanium isotopically enriched in 76Ge. The DEMONSTRATOR will utilize 76Ge from Russia, but for the Tonne-Scale experiment it is hoped that an alternate technology under development at Nonlinear Ion Dynamics (NID) will be a viable, US-based, lower-cost source of separated material. Samples of separated material from NID require analysis to determine the isotopic distribution and impurities. The MAJORANA DEMONSTRATOR is a DOE and NSF funded project with a major science impact. DOE is funding NID through an SBIR grant for development of their separation technology for application to the Tonne-Scale experiment. The Environmental Molecular Sciences facility (EMSL), a DOE user facility at PNNL, has the required mass spectroscopy instruments for making these isotopic measurements that are essential to the quality assurance for the MAJORANA DEMONSTRATOR and for the development of the future separation technology required for the Tonne-Scale experiment. A sample of isotopically separated copper was provided by NID to PNNL for isotopic analysis as a test of the NID technology. The results of that analysis are reported here.

Kouzes, Richard T.; Zhu, Zihua

2011-02-01T23:59:59.000Z

126

Information Theoretic Adaptive Tracking of Epidemics in Complex Networks  

E-Print Network (OSTI)

Adaptively monitoring the states of nodes in a large complex network is of interest in domains such as national security, public health, and energy grid management. Here, we present an information theoretic adaptive tracking and sampling framework that recursively selects measurements using the feedback from performing inference on a dynamic Bayesian Network. We also present conditions for the existence of a network specific, observation dependent, phase transition in the updated posterior of hidden node states resulting from actively monitoring the network. Since traditional epidemic thresholds are derived using observation independent Markov chains, the threshold of the posterior should more accurately model the true phase transition of a network. The adaptive tracking framework and epidemic threshold should provide insight into modeling the dynamic response of the updated posterior to active intervention and control policies while monitoring modern complex networks.

Harrington, Patrick L

2013-01-01T23:59:59.000Z

127

An Estimate of the Sampling Error Variance of the Gridded GHCN Monthly Surface Air Temperature Data  

Science Conference Proceedings (OSTI)

The sampling error variances of the 5 5 Global Historical Climatological Network (GHCN) monthly surface air temperature data are estimated from January 1851 to December 2001. For each GHCN grid box and for each month in the above time ...

S. S. P. Shen; H. Yin; T. M. Smith

2007-05-01T23:59:59.000Z

128

Placement of network services in a sensor network  

Science Conference Proceedings (OSTI)

An important challenge in designing a wireless sensor network is to maximise the network's lifetime. In a hierarchical cluster-based network, a key design issue is the placement of cluster heads (data loggers) such that the total power ... Keywords: beacons, cluster heads, clustering, data loggers, energy conservation, sensor localisation, service placement, wireless networks, wireless sensor networks

Jennifer Yick; Gregory Pasternack; Biswanath Mukherjee; Dipak Ghosal

2006-02-01T23:59:59.000Z

129

General network properties of friendship online social network  

Science Conference Proceedings (OSTI)

This paper explores visiting metrics and some of the more important general network properties of Fitcolab online social network (OSN). The wide array of statistics was explored in order to obtain general insight that will not only be useful by itself ... Keywords: online social networks, social network analysis, social networks

Haris Memic

2010-11-01T23:59:59.000Z

130

Network load-aware content distribution in overlay networks  

Science Conference Proceedings (OSTI)

Massive content distribution on overlay networks stresses both the server and the network resources because of the large volumes of data, relatively high bandwidth requirement, and many concurrent clients. While the server limitation can be circumvented ... Keywords: Content distribution networks, Hypercube, Node selection, Overlay networks, Peer-to-peer networks, Server selection

Seung Chul Han; Ye Xia

2009-01-01T23:59:59.000Z

131

Seven Deadliest Network Attacks  

Science Conference Proceedings (OSTI)

Do you need to keep up with the latest hacks, attacks, and exploits effecting networks? Then you need "Seven Deadliest Network Attacks". This book pinpoints the most dangerous hacks and exploits specific to networks, laying out the anatomy of these attacks including how to make your system more secure. You will discover the best ways to defend against these vicious hacks with step-by-step instruction and learn techniques to make your computer and network impenetrable. Attacks detailed in this book include: Denial of Service; War Dialing; Penetration 'Testing'; Protocol Tunneling; Spanning Tree Attacks; Man-in-the-Middle; and, Password Replay. Knowledge is power, find out about the most dominant attacks currently waging war on computers and networks globally. Discover the best ways to defend against these vicious attacks; step-by-step instruction shows you how. Institute countermeasures, don't be caught defenseless again, learn techniques to make your computer and network impenetrable.

Prowell, Stacy J [ORNL; Borkin, Michael [None; Kraus, Robert [Solutionary, Inc.

2010-05-01T23:59:59.000Z

132

Fluid sampling apparatus and method  

DOE Patents (OSTI)

Incorporation of a bellows in a sampling syringe eliminates ingress of contaminants, permits replication of amounts and compression of multiple sample injections, and enables remote sampling for off-site analysis.

Yeamans, David R. (Los Alamos, NM)

1998-01-01T23:59:59.000Z

133

Decoupled Sampling for Graphics Pipelines  

E-Print Network (OSTI)

We propose a generalized approach to decoupling shading from visibility sampling in graphics pipelines, which we call decoupled sampling. Decoupled sampling enables stochastic supersampling of motion and defocus blur at ...

Ragan-Kelley, Jonathan Millar

134

Rooftop Unit Network Project  

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

Network Project Network Project RTU Network Project Michael Brambley, Ph.D. Pacific Northwest National Laboratory Michael.Brambley@pnnl.gov (509) 375-6875 April 4, 2013 2 | Building Technologies Office eere.energy.gov * Packaged air conditioners and heat pumps (RTUs) are used in about 58% of all cooled commercial buildings, serving about 69% of the cooled commercial building floor space (EIA 2003) - Navigant estimates packaged A/C uses 0.9 quads of electricity for cooling annually and

135

Urban Networks Simulation Tools  

Science Conference Proceedings (OSTI)

Utilities that serve customers using networked secondary, or low-voltage, systems require that technologies be able to model the system and perform load flow and other circuit analyses on both the primary and the networked secondary. Utilities can use commercially available load flow products to model their radial systems, but many older products are unable to accurately model and perform analyses on meshed secondary network systems sourced from multiple primary feeders. Consequently, many utilities are ...

2010-03-31T23:59:59.000Z

136

System and Network Management  

Science Conference Proceedings (OSTI)

This document covers Systems and Network Management Requirements and is the first deliverable in a joint EPRI and Utility User Project to develop Network Management capability for Electric Utility Automation Systems (UAS) using international communication standards such as IEC 61850. The management of substation automation systems is critical since tools are now based, for the most part, on proprietary hardware and software. In modern state-of-the art substations, traditional network management has ...

2012-12-20T23:59:59.000Z

137

Groundwater Sampling | Open Energy Information  

Open Energy Info (EERE)

Groundwater Sampling Groundwater Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Groundwater Sampling Details Activities (3) Areas (2) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Water Sampling Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Water composition and source of fluids. Determination of mixing ratios between different fluid end-members. Determination of fluid recharge rates and residence times. Thermal: Water temperature. Dictionary.png Groundwater Sampling: Groundwater sampling is done to characterize the chemical, thermal, or hydrological properties of subsurface aqueous systems. Groundwater sampling

138

Water Sampling | Open Energy Information  

Open Energy Info (EERE)

Water Sampling Water Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Water Sampling Details Activities (51) Areas (45) Regions (5) NEPA(2) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Field Sampling Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Water composition and source of fluids Thermal: Water temperature Dictionary.png Water Sampling: Water sampling is done to characterize the chemical, thermal, or hydrological properties of a surface or subsurface aqueous system. Other definitions:Wikipedia Reegle Introduction Water sampling is done to characterize the geothermal system under investigation. A geothermal water typically has a unique chemical signature

139

Network design and defence  

E-Print Network (OSTI)

Goyal (2007), Jackson (2008) and Vega-Redondo (2007).3 A key issue is the robustness of networks to different types of shocks natural and man made. This subject is relatively little studied. The contribution of our paper is to build on a classical... by the Designer must be connected. Observe that connectedness of the residual network can be guaranteed by a star network with 1 unit of defence assigned to the centre. This protected network has minimal number of links across all connected net- works and minimal...

Dziubi?ski, Marcin; Goyal, Sanjeev

2013-01-10T23:59:59.000Z

140

Modeling Mine Mesh Networks  

Science Conference Proceedings (OSTI)

... is required beyond the powered UHF mesh ... OPNET simulation tool will be network performance metrics ... throughput, delay, and packet loss ratio for ...

2010-10-05T23:59:59.000Z

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


141

Smart Grid Communication Networks  

Science Conference Proceedings (OSTI)

... ITL staff led the evaluation of networking technologies for Smart Grid communication applications. ITL's staff lead the SGIP Priority Action Plans ...

2013-04-29T23:59:59.000Z

142

Software Defined Networking for  

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

over optical, routed or switched network elements * OpenFlow support needed on edge devices only, core stays same * Programmability for applications * Allows end-sites to...

143

ASCR Science Network Requirements  

E-Print Network (OSTI)

ASCR Program Office) Brent Draney, NERSC (Networking andSecurity) Richard Gerber, NERSC (User Services) Mike Helm,DOEGrids/PKI) Jason Hick, NERSC (Storage) Susan Hicks,

Dart, Eli

2010-01-01T23:59:59.000Z

144

ASCR Science Network Requirements  

E-Print Network (OSTI)

Office of Advanced Scientific Computing Research NetworkOffice of Advanced Scientific Computing Research, DOE OfficeOffice of Advanced Scientific Computing Research (ASCR).

Dart, Eli

2010-01-01T23:59:59.000Z

145

Green Networking Initiative  

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

voracious. Supercomputers and data centers are on track to reducing power consumption, but shrinking the carbon footprint of the decentralized networks that connect them...

146

Mission Critical Networking  

SciTech Connect

Mission-Critical Networking (MCN) refers to networking for application domains where life or livelihood may be at risk. Typical application domains for MCN include critical infrastructure protection and operation, emergency and crisis intervention, healthcare services, and military operations. Such networking is essential for safety, security and economic vitality in our complex world characterized by uncertainty, heterogeneity, emergent behaviors, and the need for reliable and timely response. MCN comprise networking technology, infrastructures and services that may alleviate the risk and directly enable and enhance connectivity for mission-critical information exchange among diverse, widely dispersed, mobile users.

Eltoweissy, Mohamed Y.; Du, David H.C.; Gerla, Mario; Giordano, Silvia; Gouda, Mohamed; Schulzrinne, Henning; Youssef, Moustafa

2010-06-01T23:59:59.000Z

147

Computations within Bayesian networks.  

E-Print Network (OSTI)

??A Bayesian network is a probabilistic model that relates random variables and their conditional dependency statements. The model uses a directed acyclical graph (DAG) that (more)

Holland, Jeffrey David

2013-01-01T23:59:59.000Z

148

Legacy - Neural Networks  

Science Conference Proceedings (OSTI)

... "Massively Parallel Implementation of Neural Network Architectures," In Proceedings of the SPIE, volume 1452, pages 532-543, Feb. 25 - Mar. ...

2011-05-12T23:59:59.000Z

149

BER Science Network Requirements  

E-Print Network (OSTI)

Department of Energy, Office of Science, Office of Advancedthe Directors of the Office of Science, Office of AdvancedResearch, DOE Office of Science Energy Sciences Network

Dart, Eli

2011-01-01T23:59:59.000Z

150

Sample holder with optical features  

DOE Patents (OSTI)

A sample holder for holding a sample to be observed for research purposes, particularly in a transmission electron microscope (TEM), generally includes an external alignment part for directing a light beam in a predetermined beam direction, a sample holder body in optical communication with the external alignment part and a sample support member disposed at a distal end of the sample holder body opposite the external alignment part for holding a sample to be analyzed. The sample holder body defines an internal conduit for the light beam and the sample support member includes a light beam positioner for directing the light beam between the sample holder body and the sample held by the sample support member.

Milas, Mirko; Zhu, Yimei; Rameau, Jonathan David

2013-07-30T23:59:59.000Z

151

On the capacity of network coding for random networks  

E-Print Network (OSTI)

d ) , the network NC coding capacity C s;t ; ;t > (1 0 )8, AUGUST 2005 On the Capacity of Network Coding for Randomthat the network coding capacity concentrates around the

Ramamoorthy, A; Shi, J; Wesel, R D

2005-01-01T23:59:59.000Z

152

Sampling streaming data with replacement  

Science Conference Proceedings (OSTI)

Simple random sampling is a widely accepted basis for estimation from a population. When data come as a stream, the total population size continuously grows and only one pass through the data is possible. Reservoir sampling is a method of maintaining ... Keywords: Data stream mining, Random sampling with replacement, Reservoir sampling

Byung-Hoon Park; George Ostrouchov; Nagiza F. Samatova

2007-10-01T23:59:59.000Z

153

Building A Science DMZ Eli Dart, Network Engineer ESnet Network...  

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

A Science DMZ Eli Dart, Network Engineer ESnet Network Engineering Group Joint Techs, Winter 2013 Honolulu, HI January 13, 2013 Lawrence Berkeley National Laboratory U.S....

154

Gas Sampling | Open Energy Information  

Open Energy Info (EERE)

Gas Sampling Gas Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Gas Sampling Details Activities (7) Areas (7) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Field Sampling Information Provided by Technique Lithology: Stratigraphic/Structural: High flux can be indicative of conduits for fluid flow. Hydrological: Gas composition and source of fluids. Thermal: Anomalous flux is associated with active hydrothermal activity. Distinguish magmatic/mantle heat inputs. Can be used to estimate reservoir fluid temperatures. Dictionary.png Gas Sampling: Gas sampling is done to characterize the chemical, thermal, and hydrological properties of a surface or subsurface hydrothermal system.

155

Spatial network modeling for databases  

Science Conference Proceedings (OSTI)

Spatial networks like transportation, power, and pipeline networks are a ubiquitous spatial concept in everyday life and play an important role for navigational and routing purposes. Database support for large spatial networks in order to represent, ...

Virupaksha Kanjilal; Markus Schneider

2011-03-01T23:59:59.000Z

156

Evolving neural networks  

Science Conference Proceedings (OSTI)

Neuroevolution, i.e. evolution of artificial neural networks, has recently emerged as a powerful technique for solving challenging reinforcement learning problems. Compared to traditional (e.g. value-function based) methods, neuroevolution is especially ... Keywords: evolutionary computation, hyperneat, neat, neural networks, neuroevolution

Kenneth O. Stanley

2012-07-01T23:59:59.000Z

157

Neural networks in astronomy  

Science Conference Proceedings (OSTI)

In the last decade, the use of neural networks (NN) and of other soft computing methods has begun to spread also in the astronomical community which, due to the required accuracy of the measurements, is usually reluctant to use automatic tools to perform ... Keywords: Bayesian learning, MLP, MUSIC, PCA, astronomy, data mining, neural networks, self-organizing maps

Roberto Tagliaferri; Giuseppe Longo; Leopoldo Milano; Fausto Acernese; Fabrizio Barone; Angelo Ciaramella; Rosario De Rosa; Ciro Donalek; Antonio Eleuteri; Giancarlo Raiconi; Salvatore Sessa; Antonino Staiano; Alfredo Volpicelli

2003-04-01T23:59:59.000Z

158

Miniaturized wireless sensor network  

E-Print Network (OSTI)

This paper addresses an overview of the wireless sensor networks. It is shown that MEMS/NEMS technologies and SIP concept are well suited for advanced architectures. It is also shown analog architectures have to be compatible with digital signal techniques to develop smart network of microsystem.

Lecointre, Aubin; Dubuc, David; Katia, Grenier; Patrick, Pons; Aubert, Herv; Muller, A; Berthou, Pascal; Gayraud, Thierry; Plana, Robert

2010-01-01T23:59:59.000Z

159

Attacking the Kad network  

Science Conference Proceedings (OSTI)

The Kad network, an implementation of the Kademlia DHT protocol, supports the popular eDonkey peer-to-peer file sharing network and has over 1 million concurrent nodes. We describe several attacks that exploit critical design weaknesses in Kad to allow ... Keywords: Kad, P2P, attack, security

Peng Wang; James Tyra; Eric Chan-Tin; Tyson Malchow; Denis Foo Kune; Nicholas Hopper; Yongdae Kim

2008-09-01T23:59:59.000Z

160

Network Cabling Handbook  

Science Conference Proceedings (OSTI)

From the Publisher:This is a one-stop guide to both copper and fiber network cabling. Contains detailed coverage of monitoring software,connectivity troubleshooting,and management techniques. Master the art of wiring your network Plan,design,and build ...

Chris Clark

2001-11-01T23:59:59.000Z

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


161

BER Science Network Requirements  

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

Network Network Requirements Report of the Biological and Environmental Research Network Requirements Workshop Conducted July 26 and 27, 2007 BER Science Network Requirements Workshop Biological and Environmental Research Program Office, DOE Office of Science Energy Sciences Network Bethesda, MD - July 26 and 27, 2007 ESnet is funded by the US Dept. of Energy, Office of Science, Advanced Scientific Computing Research (ASCR) program. Dan Hitchcock is the ESnet Program Manager. ESnet is operated by Lawrence Berkeley National Laboratory, which is operated by the University of California for the US Department of Energy under contract DE-AC02-05CH11231. This work was supported by the Directors of the Office of Science, Office of Advanced Scientific Computing Research, Facilities Division, and the Office of Biological &

162

Factory Equipment Network Testing Framework  

Science Conference Proceedings (OSTI)

... and analyses for industrial networks that can provide figures of merit for real-time networking properties, similar to vehicle fuel economy. ...

2013-01-04T23:59:59.000Z

163

Siphons in Chemical Reaction Networks  

E-Print Network (OSTI)

credited. Siphons in Chemical Reaction Networks Referencesfor a class of nonlinear chemical equations. SIAM J. Appl.to persistence analysis in chemical reaction networks. In:

Shiu, Anne; Sturmfels, Bernd

2010-01-01T23:59:59.000Z

164

Mobility in Wireless Sensor Networks  

E-Print Network (OSTI)

the 802.15.4 radio (for wireless operation) as well as thewireless sensor network protocol, significant power can be saved during network operations.

Mehta, Ankur Mukesh

2012-01-01T23:59:59.000Z

165

Measuring network security using dynamic bayesian network  

Science Conference Proceedings (OSTI)

Given the increasing dependence of our societies on networked information systems, the overall security of these systems should be measured and improved. Existing security metrics have generally focused on measuring individual vulnerabilities without ... Keywords: attack graph, intrusion detection, security, security metric

Marcel Frigault; Lingyu Wang; Anoop Singhal; Sushil Jajodia

2008-10-01T23:59:59.000Z

166

Sampling Distribution of the Time between Effectively Independent Samples  

Science Conference Proceedings (OSTI)

The sampling distribution of the estimate of the time between effectively independent samples, T0, is investigated using Monte-Carlo techniques. It is found to be asymptotically unbiased and normally distributed. Agreement between empirical ...

Daniel Wilks

1987-03-01T23:59:59.000Z

167

GAS MAIN SENSOR AND COMMUNICATIONS NETWORK SYSTEM  

SciTech Connect

Automatika, Inc. was contracted by the Department of Energy (DOE) and with co-funding from the New York Gas Group (NYGAS), to develop an in-pipe natural gas prototype measurement and wireless communications system for assessing and monitoring distribution networks. A prototype system was built for low-pressure cast-iron mains and tested in a spider- and serial-network configuration in a live network in Long Island with the support of Keyspan Energy, Inc. The prototype unit combined sensors capable of monitoring pressure, flow, humidity, temperature and vibration, which were sampled and combined in data-packages in an in-pipe master-slave architecture to collect data from a distributed spider-arrangement, and in a master-repeater-slave configuration in serial or ladder-network arrangements. It was found that the system was capable of performing all data-sampling and collection as expected, yielding interesting results as to flow-dynamics and vibration-detection. Wireless in-pipe communications were shown to be feasible and valuable data was collected in order to determine how to improve on range and data-quality in the future.

Hagen Schempf, Ph.D.

2003-02-27T23:59:59.000Z

168

Comparative analysis of collaboration networks  

SciTech Connect

In this paper we carry out a comparative analysis of the word network as the collaboration network based on the novel by M. Bulgakov 'Master and Margarita', the synonym network of the Russian language as well as the Russian movie actor network. We have constructed one-mode projections of these networks, defined degree distributions for them and have calculated main characteristics. In the paper a generation algorithm of collaboration networks has been offered which allows one to generate networks statistically equivalent to the studied ones. It lets us reveal a structural correlation between word network, synonym network and movie actor network. We show that the degree distributions of all analyzable networks are described by the distribution of q-type.

Progulova, Tatiana; Gadjiev, Bahruz [International University for Nature, Society and Man, 19 Universitetskaya Street, Dubna, 141980 (Russian Federation)

2011-03-14T23:59:59.000Z

169

Networked computing in wireless sensor networks for structural health monitoring  

Science Conference Proceedings (OSTI)

This paper studies the problem of distributed computation over a network of wireless sensors. While this problem applies to many emerging applications, to keep our discussion concrete, we will focus on sensor networks used for structural health monitoring. ... Keywords: clustering, degree-constrained data collection tree, networked computing, singular value decomposition (SVD), structural health monitoring (SHM), wireless sensor networks (WSNs)

Apoorva Jindal; Mingyan Liu

2012-08-01T23:59:59.000Z

170

Adoption of Vehicular Ad Hoc Networking Protocols by Networked Robots  

Science Conference Proceedings (OSTI)

This paper focuses on the utilization of wireless networking in the robotics domain. Many researchers have already equipped their robots with wireless communication capabilities, stimulated by the observation that multi-robot systems tend to have several ... Keywords: Networked robot, Robotic ad hoc network, V2I, V2V, Vehicular ad hoc network, Wireless robot

Wim Vandenberghe; Ingrid Moerman; Piet Demeester

2012-06-01T23:59:59.000Z

171

Trends in the development of communication networks: Cognitive networks  

Science Conference Proceedings (OSTI)

One of the main challenges already faced by communication networks is the efficient management of increasing complexity. The recently proposed concept of cognitive network appears as a candidate that can address this issue. In this paper, we survey the ... Keywords: Autonomic networks, Cognition loop, Cognitive networks, Cross-layer, Knowledge representation, Learning, OSI, Protocol stack, Reasoning, Self-aware

Carolina Fortuna; Mihael Mohorcic

2009-06-01T23:59:59.000Z

172

Home Network Security  

E-Print Network (OSTI)

Home computers that are connected to the Internet are under attack and need to be secured. That process is relatively well understood, even though we do not have perfect solutions today and probably never will. Meanwhile, however, the home computing environment is evolving into a home network of multiple devices, which will also need to be secured. We have little experience with these new home networks and much research needs to be done in this area. This paper gives a view of the requirements and some of the techniques available for securing home networks.

Technology Journal Interoperable; Carl M. Ellison; Corporate Technology Group; Intel Corporation

2002-01-01T23:59:59.000Z

173

BES Science Network Requirements  

Science Conference Proceedings (OSTI)

The Energy Sciences Network (ESnet) is the primary provider of network connectivityfor the US Department of Energy Office of Science (SC), the single largest supporter of basic research in the physical sciences in the United States. In support of the Office ofScience programs, ESnet regularly updates and refreshes its understanding of the networking requirements of the instruments, facilities, scientists, and science programs that it serves. This focus has helped ESnet to be a highly successful enabler of scientific discovery for over 20 years.

Dart, Eli; Tierney, Brian; Dart, Eli; Biocca, A.; Carlson, R.; Chen, J.; Cotter, S.; Dattoria, V.; Davenport, J.; Gaenko, A.; Kent, P.; Lamm, M.; Miller, S.; Mundy, C.; Ndousse, T.; Pederson, M.; Perazzo, A.; Popescu, R.; Rouson, D.; Sekine, Y.; Sumpter, B.; Wang, C.-Z.; Whitelam, S.; Zurawski, J.

2011-02-01T23:59:59.000Z

174

Sampling Characteristics of Satellite Orbits  

Science Conference Proceedings (OSTI)

The irregular space-time sampling of any finite region by an orbiting satellite raises difficult questions as to which frequencies and wavenumbers can be determined and which will alias into others. Conventional sampling theorems must be extended ...

Carl Wunsch

1989-12-01T23:59:59.000Z

175

Flux Measurement with Conditional Sampling  

Science Conference Proceedings (OSTI)

A method is proposed to measure scalar fluxes using conditional sampling. Only the mean concentrations of updraft and downdraft samples, the standard deviation of the vertical velocity, and a coefficient of proportionality, b, need to be known. ...

Joost A. Businger; Steven P. Oncley

1990-04-01T23:59:59.000Z

176

Sampling Errors in Seasonal Forecasting  

Science Conference Proceedings (OSTI)

The limited numbers of start dates and ensemble sizes in seasonal forecasts lead to sampling errors in predictions. Defining the magnitude of these sampling errors would be useful for end users as well as informing decisions on resource ...

Stephen Cusack; Alberto Arribas

2009-03-01T23:59:59.000Z

177

Sampling Soil - Energy Innovation Portal  

INL has developed a method for sampling soil to determine the presence of extremely fine particles such as asbestos.

178

Securing vehicular ad hoc networks  

Science Conference Proceedings (OSTI)

Vehicular networks are very likely to be deployed in the coming years and thus become the most relevant form of mobile ad hoc networks. In this paper, we address the security of these networks. We provide a detailed threat analysis and devise an appropriate ... Keywords: Vehicular ad hoc networks, security, wireless

Maxim Raya; Jean-Pierre Hubaux

2007-01-01T23:59:59.000Z

179

Set separation Neural Network paradigms  

E-Print Network (OSTI)

for forecasting financial time series 29 f´evrier 2008 Designing a neural network for forecasting financial time for forecasting financial time series #12;Neural Net The inputs Set separation Neural Network paradigms From network for forecasting financial time series #12;Neural Net The inputs Set separation Neural Network

Chen, Yiling

180

NP Science Network Requirements  

E-Print Network (OSTI)

Process of Science Data Set Size ? Centralized processing tomicro- DSTs, reducing data-set size by a factor of five,Anticipated Network Needs Data Set Size Process of Science

Dart, Eli

2013-01-01T23:59:59.000Z

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


181

Wireless Sensor Network Fundamentals  

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

Wireless Sensor Network Fundamentals Wireless Sensor Network Fundamentals Speaker(s): Steven Lanzisera Date: February 8, 2010 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Kevin Kircher Wireless sensor networks have been promising to provide easy data collection and control capability to applications ranging from scientific data collection, disaster recover, national security, and more. The user experience, however, has been filled with confusing terminology, complicated systems, and a lack of interoperability between vendors. Users with a background in the technology and fundamentals are better able to understand system capabilities, make decisions, and end up with a network that meets their needs. Although a sufficient coverage of this topic is at least a semester course, the goal of this talk is to give a brief

182

Network Invariants in Action  

Science Conference Proceedings (OSTI)

The paper presents the method of network invariants for verifying a wide spectrum of LTL properties, including liveness, of parameterized systems. This method can be applied to establish the validity of the property over a system S(n) for ...

Yonit Kesten; Amir Pnueli; Elad Shahar; Lenore D. Zuck

2002-08-01T23:59:59.000Z

183

The expandable network disk  

E-Print Network (OSTI)

This thesis presents a virtual disk cluster called END, the Expandable Network Disk. END aggregates storage on a cluster of servers into a single virtual disk. END's main goals are to offer good performance during normal ...

Muthitacharoen, Athicha, 1976-

2008-01-01T23:59:59.000Z

184

Long Thin Networks  

Science Conference Proceedings (OSTI)

In view of the unpredictable and problematic nature of long thin networks (for example, wireless WANs), arriving at an optimized transport is a daunting task. We have reviewed the existing proposals along with future research items. Based on this overview, ...

G. Montenegro; S. Dawkins; M. Kojo; V. Magret; N. Vaidya

2000-01-01T23:59:59.000Z

185

BES Science Network Requirements  

E-Print Network (OSTI)

the Directors of the Office of Science, Office of AdvancedOffice of Basic Energy Sciences. This is LBNL report LBNL-BES Science Network Requirements Report of the Basic Energy

Dart, Eli

2011-01-01T23:59:59.000Z

186

Mobility in wireless networks  

Science Conference Proceedings (OSTI)

This article surveys mobility patterns and mobility models for wirelss networks. Mobility patterns are classified into the following types: pedestrians, vehicles, aerial, dynamic medium, robot, and outer space motion. We present the characteristics of ...

Christian Schindelhauer

2006-01-01T23:59:59.000Z

187

Self modelling knowledge networks  

Science Conference Proceedings (OSTI)

What the scope of knowledge management (KM) is concerned, the focus of attention is shifting towards inter-organisational aspects resulting in new requirements for the KM process. This paper introduces the concept of self modelling knowledge networks ...

Volker Derballa; Antonia Albani

2005-10-01T23:59:59.000Z

188

BER Science Network Requirements  

E-Print Network (OSTI)

ESnet (Networking) Bert de Jong, PNNL (EMSL/HPC) KerstinKleese van Dam, PNNL (Data Management) Miron Livny,ORNL (ARM) Chris Oehmen, PNNL (Bioinformatics/ScalaBLAST)

Dart, Eli

2011-01-01T23:59:59.000Z

189

BES Science Network Requirements  

E-Print Network (OSTI)

September 22 and 23, 2010 ESnet Energy Sciences NetworkMD September 22 and 23, 2010 ESnet is funded by the USASCR). Vince Dattoria is the ESnet Program Manager. ESnet is

Dart, Eli

2011-01-01T23:59:59.000Z

190

ESNET (Energy Sciences Network)  

Science Conference Proceedings (OSTI)

This document describes the Energy Sciences Network (ESNET) project which was undertaken by the Scientific Computing Staff during fiscal year (FY) 1986 at the direction of the Director, Office of Energy Research (ER). This document serves as the program plan for the ESNET project and is the result of the effort of the cross program Energy Sciences Network Steering Committee. The ESNET Steering Committee has been charged to codify the overall ER computer network requirements, to document and set priorities for computer networking requirements including performance objectives. Further, this committee has been asked to identify future ESNET functional characteristics, to identify research and development needs for the ESNET, to establish ESNET performance objectives and to define the intrastructure necessary to manage and operate the ESNET facilities.

Not Available

1987-06-01T23:59:59.000Z

191

Search using social networks  

E-Print Network (OSTI)

In this thesis, we present an approach to the problem of personalized web search which makes use of the searcher's social network, in addition to the hyper-link based score used in most search engines. This combination of ...

Ammar, Ammar (Ammar T.)

2010-01-01T23:59:59.000Z

192

Network Requirements Reviews  

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

narrative text describing the science, a case study contains a table containing a distillation of the network-centric aspects of the science. In particular, a case study document...

193

Urban Network Practices  

Science Conference Proceedings (OSTI)

This report describes the findings of an underground distribution practices immersion conducted by the Electric Power Research Institute (EPRI) with National Grid. This immersion was conducted as part of a multiyear effort by EPRI to identify noteworthy practices in managing urban network systems. National Grid's U.S. operations, headquartered in Waltham, Massachusetts, serves customers through secondary network systems in multiple cities in New York and New England. This report profiles the practices (p...

2012-02-16T23:59:59.000Z

194

Securing Cell Relay Networks  

Science Conference Proceedings (OSTI)

A cellular relay or cell relay (CR) is a device used to relay information from one point in a network to another through a wireless medium using spectrum from the cellular band. One common use of CRs in the United States is to provide wireless devices with access to higher bandwidth or broadband access points. Examples include advanced metering infrastructure (AMI) mesh networks that use meter-based transmitters and receivers to provide communications between meters and from ...

2013-12-20T23:59:59.000Z

195

A high-frequency sampling monitoring system for environmental and structural applications  

Science Conference Proceedings (OSTI)

High-frequency sampling is not only a prerogative of high-energy physics or machinery diagnostic monitoring: critical environmental and structural health monitoring applications also have such a challenging constraint. Moreover, such unique design constraints ... Keywords: Monitoring system, high-frequency sampling, rock collapse forecasting, wireless sensor network

Cesare Alippi; Romolo Camplani; Cristian Galperti; Antonio Marullo; Manuel Roveri

2013-07-01T23:59:59.000Z

196

Soil Sampling | Open Energy Information  

Open Energy Info (EERE)

Soil Sampling Soil Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Soil Sampling Details Activities (10) Areas (9) Regions (1) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Field Sampling Information Provided by Technique Lithology: Stratigraphic/Structural: Can reveal relatively high permeability zones Hydrological: Thermal: Used to locate active hydrothermal systems Dictionary.png Soil Sampling: Soil sampling is a method that can be used for exploration of geothermal resources that lack obvious surface manifestations. Soils that are above or adjacent to a "hidden" hydrothermal system will have a unique chemistry that can be indicative of a hydrothermal system at depth and a zone of

197

Sample Environment | ORNL Neutron Sciences  

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

Home › Instruments › SNS › Sample Environment Home › Instruments › SNS › Sample Environment Sample Environment The Sample Environment Group provides equipment and support for studying materials under controlled conditions (temperature, pressure, magnetic field, chemical environment, etc.). When you come to SNS to conduct an experiment, our front-line teams are there to support you. Although we currently offer a wide range of capabilities, we realize that these capabilities must continually grow. Therefore, we also have a busy research and development team, and we encourage you to partner with them to develop new equipment and techniques. The Sample Environment Equipment Database allows you to search for information about the sample environment equipment available for HFIR and SNS instruments. It will be available in the near future for SNS sample

198

Rock Sampling | Open Energy Information  

Open Energy Info (EERE)

Rock Sampling Rock Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Rock Sampling Details Activities (13) Areas (13) Regions (1) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Field Sampling Information Provided by Technique Lithology: Rock samples are used to define lithology. Field and lab analyses can be used to measure the chemical and isotopic constituents of rock samples. Stratigraphic/Structural: Provides information about the time and environment which formed a particular geologic unit. Microscopic rock textures can be used to estimate the history of stress and strain, and/or faulting. Hydrological: Isotope geochemistry can reveal fluid circulation of a geothermal system.

199

Open Large-Scale Online Social Network Dyn  

E-Print Network (OSTI)

Online social networks have quickly become the most popular destination on the World Wide Web. These networks are still a fairly new form of online human interaction and have gained wide popularity only recently within the past three to four years. Few models or descriptions of the dynamics of these systems exist. This is largely due to the difficulty in gaining access to the data from these networks which is often viewed as very valuable. In these networks, members maintain list of friends with which they share content with by first uploading it to the social network service provider. The content is then distributed to members by the service provider who generates a feed for each member containing the content shared by all of the member's friends aggregated together. Direct access to dynamic linkage data for these large networks is especially difficult without a special relationship with the service provider. This makes it difficult for researchers to explore and better understand how humans interface with these systems. This dissertation examines an event driven sampling approach to acquire both dynamics link event data and blog content from the site known as LiveJournal. LiveJournal is one of the oldest online social networking sites whose features are very similar to sites such as Facebook and Myspace yet smaller in scale as to be practical for a research setting. The event driven sampling methodology and analysis of the resulting network model provide insights for other researchers interested in acquiring social network dynamics from LiveJournal or insight into what might be expected if an event driven sampling approach was applied to other online social networks. A detailed analysis of both the static structure and network dynamics of the resulting network model was performed. The analysis helped motivated work on a model of link prediction using both topological and content-based metrics. The relationship between topological and content-based metrics was explored. Factored into the link prediction analysis is the open nature of the social network data where new members are constantly joining and current members are leaving. The data used for the analysis spanned approximately two years.

Corlette, Daniel James

2011-05-01T23:59:59.000Z

200

Sample page | Open Energy Information  

Open Energy Info (EERE)

Sample page Sample page Jump to: navigation, search This page has been rated 13[1][2] on the scale of awesomness. This page is awesome! The above text is generated by the SampleTemplate. Try editing it and changing the level of awesomeness to see the template react. Hint: It says something different depending on whether or not the page is at least 5 awesome. This page is related to the following topics[3][4]: References Sample pages Help pages Additional Info Name Sample page Awesomeness 13 Topics (raw) References; Sample pages; Help pages; References ↑ Francis C. Monastero. 2002. An overview of industry-military cooperation in the development of power operations at the Coso geothermal field in southern California. GRC Bulletin. . ↑ EPRI. 12/12/2012. Assessment and Mapping of the Riverine

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


201

Sample  

Science Conference Proceedings (OSTI)

... deficits by gouging California energy consumers, must ... to state of the art information technology. ... Industry and organization specific knowledge is ...

2010-03-22T23:59:59.000Z

202

Acceptance sampling using judgmental and randomly selected samples  

SciTech Connect

We present a Bayesian model for acceptance sampling where the population consists of two groups, each with different levels of risk of containing unacceptable items. Expert opinion, or judgment, may be required to distinguish between the high and low-risk groups. Hence, high-risk items are likely to be identifed (and sampled) using expert judgment, while the remaining low-risk items are sampled randomly. We focus on the situation where all observed samples must be acceptable. Consequently, the objective of the statistical inference is to quantify the probability that a large percentage of the unsampled items in the population are also acceptable. We demonstrate that traditional (frequentist) acceptance sampling and simpler Bayesian formulations of the problem are essentially special cases of the proposed model. We explore the properties of the model in detail, and discuss the conditions necessary to ensure that required samples sizes are non-decreasing function of the population size. The method is applicable to a variety of acceptance sampling problems, and, in particular, to environmental sampling where the objective is to demonstrate the safety of reoccupying a remediated facility that has been contaminated with a lethal agent.

Sego, Landon H.; Shulman, Stanley A.; Anderson, Kevin K.; Wilson, John E.; Pulsipher, Brent A.; Sieber, W. Karl

2010-09-01T23:59:59.000Z

203

Architecture for mobile Heterogeneous Multi Domain networks  

Science Conference Proceedings (OSTI)

Multi domain networks can be used in several scenarios including military, enterprize networks, emergency networks and many other cases. In such networks, each domain might be under its own administration. Therefore, the cooperation among domains is ... Keywords: Network architecture, heterogeneous networks, mobility, policy based networking

Arjan Durresi; Ping Zhang; Mimoza Durresi; Leonard Barolli

2010-01-01T23:59:59.000Z

204

Sample State and Local Ballots  

Science Conference Proceedings (OSTI)

Sample State and Local Ballots. ... We thank the election officials who have contributed to this effort. State, County/Municipality, Ballot, Election, Date, ...

2010-10-05T23:59:59.000Z

205

IWTU Process Sample Analysis Report  

SciTech Connect

CH2M-WG Idaho (CWI) requested that Battelle Energy Alliance (BEA) analyze various samples collected during June August 2012 at the Integrated Waste Treatment Facility (IWTU). Samples of IWTU process materials were collected from various locations in the process. None of these samples were radioactive. These samples were collected and analyzed to provide more understanding of the compositions of various materials in the process during the time of the process shutdown that occurred on June 16, 2012, while the IWTU was in the process of nonradioactive startup.

Nick Soelberg

2013-04-01T23:59:59.000Z

206

Homeowner Soil Sample Information Form  

E-Print Network (OSTI)

Homeowners should submit this form with their soil samples when requesting a soil test from the Texas A&M Soil Testing Laboratory.

Provin, Tony

2007-04-11T23:59:59.000Z

207

HAP sampling at Tidd PFBC  

SciTech Connect

The objective of this project was to sample process streams of the Tidd PFBC plant and to characterize the HAPs associated with those various process streams. The data are comparable to HAP data collected by DOE and EPRI studies at conventional coal-fired utility plants. Twelve sampling locations throughout Tidd PFBC plant were selected to characterize the HAPs in the plant cycle. Sampling was conducted at the input and output of the combustor, before and after the hot gas clean-up (HGCU) and before and after the electrostatic precipitator (ESP). Seven solid process streams were sampled including coal and sorbent to the PFBC unit and ash from the PFBC bed and ash collection devices. Service water which is mixed with the coal to make coal paste was the only liquid process stream sampled. The four gas stream samples collected were the inlets and outlets of the HGCU and ESP. Lists are presented for field sampling requirements for gas streams; coal sorbent, and service water; and ash samples. Lists of elements and compounds (inorganic, organic, and radioactive) are also included. The samples have been collected and are being analyzed.

Mudd, M.J.; Dal Porto, P.A.

1994-10-01T23:59:59.000Z

208

MAP3S precipitation chemistry network: seventh periodic summary report, 1983. [MAP3S Network  

SciTech Connect

This summary report, the seventh in the series, contains complete field and chemical data from the MAP3S Precipitation Chemistry Network for the year 1983. Sections cover QA/QC of the MAP3S/PCN; network history, network site information and a MAP3S/PCN bibliography; and a brief statistical look at the laboratory operations for 1983. There is also a brief statistical summary for 1982 to 1983. Included under the Quality Control section are the QA audits for site performance, laboratory comparisons, field blank and pH test results, and sample shipping and analysis results. Included is a listing of cooperating organizations and personnel for the MAP3S/PCN. 10 references, 10 figures, 32 tables.

Rothert, J.E.; Dana, M.T.

1984-11-01T23:59:59.000Z

209

Digital Networks: Electronics and Beyond  

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

Digital Networks: Electronics and Beyond Digital Networks: Electronics and Beyond Speaker(s): Bruce Nordman Date: January 9, 2009 - 12:00pm Location: 90-3122 For the last five years or so, I have made digital networks my prime research focus. For the most part, this has concentrated on IT networks as with PCs and servers, and the network interfaces and network devices that enable it. I will outline how to think about networks as they collide with energy use and efficiency, and report on the several projects we have underway in this area. Networks have a unique relationship to industry standards and I will outline some of the challenges and opportunities this brings. In addition, we have the looming prospect of the networking of many non-electronic loads in buildings (particularly lighting and climate

210

Network sensitivity to geographical configuration  

E-Print Network (OSTI)

Gravitational wave astronomy will require the coordinated analysis of data from the global network of gravitational wave observatories. Questions of how to optimally configure the global network arise in this context. We have elsewhere proposed a formalism which is employed here to compare different configurations of the network, using both the coincident network analysis method and the coherent network analysis method. We have constructed a network model to compute a figure-of-merit based on the detection rate for a population of standard-candle binary inspirals. We find that this measure of network quality is very sensitive to the geographic location of component detectors under a coincident network analysis, but comparatively insensitive under a coherent network analysis.

Antony C Searle; Susan M Scott; David E McClelland

2001-10-10T23:59:59.000Z

211

Science-Driven Network Requirements for ESnet  

E-Print Network (OSTI)

Neutron Source Network Requirements Six DOE laboratories arehas networking requirements which differ from many other DOEhas networking requirements which differ from many other DOE

2006-01-01T23:59:59.000Z

212

Marine Planning Portal Network | Data.gov  

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

Network Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean Marine Planning Portal Network A Network of...

213

HEP Science Network Requirements--Final Report  

E-Print Network (OSTI)

Networking) Les Cottrell, SLAC (Networking) Glen Crawford,Networking) Richard Mount, SLAC (HEP) Thomas Ndousse-Fetter,36 SLAC Experimental HEP

Dart Ed, Eli

2010-01-01T23:59:59.000Z

214

Concerted Flows: Infrastructure for Terabits Data Networks |...  

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

Concerted Flows: Infrastructure for Terabits Data Networks High-performance application use of emerging 100G networks and future terabit networks will require substantial and...

215

Home Network Technologies and Automating Demand Response  

E-Print Network (OSTI)

networks_in_the_home_the_new_growth_market.htm [12] NationalHome Network Technologies and Automating Demand Responsethe University of California. Home Network Technologies and

McParland, Charles

2010-01-01T23:59:59.000Z

216

Computers and Computer Networks  

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

and Computer Networks and Computer Networks Computer Science documentation, etc. Computer Science Research and Services at the Lab Super Computing Computer Graphics Computer & Internet information via yahoo.com, categorized by subject Perl UNIX documentation Shareware sites MBONE and Videoconferencing Computer Networks and related documentation Computer Documentation World Wide Web UNIX Documentation TeX, LaTeX FAQ, documents, archives, etc. MacInTouch -- current Macintosh information, from vendor & others Shareware sites The Free On-line Dictionary of Computing PDS: The Performance Database Server of Computer Benchmark Return to Top Return to Top Newsgroups, USEnet, and Mailing Lists Usenet (Internet News Groups) Mailing list software & information Return to Top Return to Top

217

Field Sampling | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Field Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Field Sampling Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Field Techniques Information Provided by Technique Lithology: Rock samples are used to define lithology. Field and lab analyses can be used to measure the chemical and isotopic constituents of rock samples. Stratigraphic/Structural: Can reveal relatively high permeability zones. Provides information about the time and environment which formed a particular geologic unit. Microscopic rock textures can be used to estimate the history of stress and strain, and/or faulting.

218

Polynomial Time Construction Algorithm of BCNC for Network Coding in Cyclic Networks  

Science Conference Proceedings (OSTI)

Network coding in cyclic networks meets more problems than in acyclic networks. Recently, S.-Y.R.Li et al.proposed a framework of convolutional network coding (CNC) as well as its four properties for cyclic networks with theoretic fundamentals of discrete ... Keywords: network coding, convolutional network coding, cyclic networks

Jiaqing Huang; Liang Wang; Wenqing Cheng; Hui Li

2009-06-01T23:59:59.000Z

219

Flexible application driven network striping over Wireless Wide Area Networks  

E-Print Network (OSTI)

Inverse multiplexing, or network striping, allows the construction of a high-bandwidth virtual channel from a collection of multiple low-bandwidth network channels. Striping systems usually employ a packet scheduling policy ...

Qureshi, Asfandyar

2005-01-01T23:59:59.000Z

220

The ATM Forums private network/network interface  

Science Conference Proceedings (OSTI)

The ATM Forum completed the first version of its private network/network interface (PNNI) in March 1996 and many ATM switch manufacturers are now offering early implementations. PNNI offers a different type of internetwork or internodal interface from ...

J. M. Scott; I. G. Jones

1998-04-01T23:59:59.000Z

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


221

Network scheduling for data archiving applications in sensor networks  

Science Conference Proceedings (OSTI)

Since data archiving in sensor networks is a communication intensive application, a careful power management of communication is of critical importance for such networks. An example is FPS, an adaptive power scheduling algorithm that combines slotted ...

Yong Yao; S. M. Nazrul Alam; Johannes Gehrke; Sergio D. Servetto

2006-09-01T23:59:59.000Z

222

CS 535- Wireless Network Security  

E-Print Network (OSTI)

This is a 3-credit course that focuses on security and privacy issues in wireless networks and systems. Generally the security of MAC and especially upper layers are considered in this class. This course is not intended to cover cryptography in detail, but an overview of cryptography will be given at the beginning of the course so that the students who do not know cryptography would have sufficient information to understand the rest of the course. Although the catalogue information for this course (see below) several sub areas of wireless network security, in this course we will focus on ad hoc and sensor network security. Catalogue Data: This course covers security and privacy issues in wireless networks and systems, such as cellular networks, wireless LANs, wireless PANs, mobile ad hoc networks, vehicular networks, satellite networks, wireless mesh networks, sensor networks and RFID systems. Security problems of MAC and especially upper layers will be emphasized. Attacks and proposed solutions at several layers, authentication, key distribution and key management, secure routing, selfish and malicious behaviors, and secure group communication are analyzed for applicable wireless network types. A short overview of cryptography and wireless networking principles will be given at the beginning of the course. Prerequisite: Formally there is no prerequisite for this course, but students are expected to come with undergrad level computer networks background. Moreover, computer-programming expertise is necessary. Instructor: Schedule:

Albert Levi

2008-01-01T23:59:59.000Z

223

Attacking Automatic Wireless Network Selection  

E-Print Network (OSTI)

Wireless 802.11 networking is becoming so prevalent that many users have become accustomed to having available wireless networks in their workplace, home, and many public places such as airports and coffee shops. Modern client operating systems implement automatic wireless network discovery and known network identification to facilitate wireless networking for the end-user. In order to implement known network discovery, client operating systems remember past wireless networks that have been joined and automatically look for these networks (referred to as Preferred or Trusted Networks) whenever the wireless network adapter is enabled. By examining these implementations in detail, we have discovered previously undisclosed vulnerabilities in the implementation of these algorithms under the two most prevalent client operating systems, Windows XP and MacOS X. With custom base station software, an attacker may cause clients within wireless radio range to associate to the attackers wireless network without user interaction or notification. This will occur even if the user has never connected to a wireless network before or they have an empty Preferred/Trusted Networks List. We describe these vulnerabilities as well as their implementation and impact. 1

Dino A. Dai Zovi; Shane A. Macaulay

2005-01-01T23:59:59.000Z

224

ASCR Science Network Requirements  

Science Conference Proceedings (OSTI)

The Energy Sciences Network (ESnet) is the primary provider of network connectivity for the US Department of Energy Office of Science, the single largest supporter of basic research in the physical sciences in the United States. In support of the Office of Science programs, ESnet regularly updates and refreshes its understanding of the networking requirements of the instruments, facilities, scientists, and science programs that it serves. This focus has helped ESnet to be a highly successful enabler of scientific discovery for over 20 years. In April 2009 ESnet and the Office of Advanced Scientific Computing Research (ASCR), of the DOE Office of Science, organized a workshop to characterize the networking requirements of the programs funded by ASCR. The ASCR facilities anticipate significant increases in wide area bandwidth utilization, driven largely by the increased capabilities of computational resources and the wide scope of collaboration that is a hallmark of modern science. Many scientists move data sets between facilities for analysis, and in some cases (for example the Earth System Grid and the Open Science Grid), data distribution is an essential component of the use of ASCR facilities by scientists. Due to the projected growth in wide area data transfer needs, the ASCR supercomputer centers all expect to deploy and use 100 Gigabit per second networking technology for wide area connectivity as soon as that deployment is financially feasible. In addition to the network connectivity that ESnet provides, the ESnet Collaboration Services (ECS) are critical to several science communities. ESnet identity and trust services, such as the DOEGrids certificate authority, are widely used both by the supercomputer centers and by collaborations such as Open Science Grid (OSG) and the Earth System Grid (ESG). Ease of use is a key determinant of the scientific utility of network-based services. Therefore, a key enabling aspect for scientists beneficial use of high performance networks is a consistent, widely deployed, well-maintained toolset that is optimized for wide area, high-speed data transfer (e.g. GridFTP) that allows scientists to easily utilize the services and capabilities that the network provides. Network test and measurement is an important part of ensuring that these tools and network services are functioning correctly. One example of a tool in this area is the recently developed perfSONAR, which has already shown its usefulness in fault diagnosis during the recent deployment of high-performance data movers at NERSC and ORNL. On the other hand, it is clear that there is significant work to be done in the area of authentication and access control - there are currently compatibility problems and differing requirements between the authentication systems in use at different facilities, and the policies and mechanisms in use at different facilities are sometimes in conflict. Finally, long-term software maintenance was of concern for many attendees. Scientists rely heavily on a large deployed base of software that does not have secure programmatic funding. Software packages for which this is true include data transfer tools such as GridFTP as well as identity management and other software infrastructure that forms a critical part of the Open Science Grid and the Earth System Grid.

Dart, Eli; Tierney, Brian

2009-08-24T23:59:59.000Z

225

Community-based relational Markov networks in complex networks  

Science Conference Proceedings (OSTI)

Relational Markov networks (RMNs) are a joint probabilistic model for an entire collection of related entities. The model is able to mine relational data effectively by integrating information from content attributes of individual entities as well as ... Keywords: community structure, complex networks, graphical models, maximum pseudolikelihood estimation, relational Markov networks

Huaiyu Wan; Youfang Lin; Caiyan Jia; Houkuan Huang

2011-10-01T23:59:59.000Z

226

Wireless SensorWireless Sensor NetworkNetwork  

E-Print Network (OSTI)

consumption related to ICT varying from 2% to 10% of the worldwide power consumption [5]. It is worth consumption in network by 2015 [10]. In the current telecommunications networks, the vast majority, modems, line cards, etc.), a direct estimation of network equipment power consumption is notoriously

Kabara, Joseph

227

Sleep scheduling for wireless sensor networks via network flow model  

Science Conference Proceedings (OSTI)

The pervasiveness and operational autonomy of mesh-based wireless sensor networks (WSNs) make them an ideal candidate in offering sustained monitoring functions at reasonable cost over a wide area. There has been a general consensus within the research ... Keywords: Cross-layer design, Integer linear programming, Network flow model, Sleep scheduling, Wireless sensor networks

Rick W. Ha; Pin-Han Ho; X. Sherman Shen; Junshan Zhang

2006-08-01T23:59:59.000Z

228

On optical communications networks and wideband network architecture  

Science Conference Proceedings (OSTI)

The optical networks of today are just beginning to realize their abilities to carry a tremendous amount of information in the forms of voice, data and video signals on a single optical fiber. However, many challenges lay ahead as designers and system ... Keywords: Optical networks, Wave division multiplexing and optical switching, Wideband network architecture

K Makki; J Broussard; N Pissinou

2000-05-01T23:59:59.000Z

229

Measurements of Atmospheric Methane and 13C/12C of Atmospheric...  

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

Methane and 13C12C, Flask Air Samples Measurements of Atmospheric Methane and 13C12C of Atmospheric Methane from Flask Air Samples (1999) data Data Investigators Paul Quay and...

230

Virtual urban traffic network simulator  

E-Print Network (OSTI)

In this project, I designed and implemented a virtual urban traffic network simulator. The simulator serves as a testbed for human-subject experiments to determine driver behavior in road networks and also as a platform ...

Uh, Jason (Jason J.)

2011-01-01T23:59:59.000Z

231

Sensing and modeling human networks  

E-Print Network (OSTI)

Knowledge of how groups of people interact is important in many disciplines, e.g. organizational behavior, social network analysis, knowledge management and ubiquitous computing. Existing studies of social network interactions ...

Choudhury, Tanzeem Khalid, 1975-

2004-01-01T23:59:59.000Z

232

Network Access to Multimedia Information  

Science Conference Proceedings (OSTI)

This report summarises the requirements of research and academic network users for network access to multimedia information. It does this by investigating some of the projects planned or currently underway in the community. Existing information systems ...

C. Adie

1994-05-01T23:59:59.000Z

233

SG Network System Requirements Specification  

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

SG Network System Requirements Specification SG Network System Requirements Specification Interim Release 3 5/17/2010 - 2 - Table of Contents Document History ....................................................................................................................................... - 3 - Revision History .......................................................................................................................................... - 3 - Preface........................................................................................................................................................ - 4 - Authors........................................................................................................................................................ - 6 -

234

Network computing : limits and achievability  

E-Print Network (OSTI)

insufficiency of linear network cod- ing. 2009. [88] R.and K. Zeger. Network cod- ing for computing. In Allertonto target function f is C cod (N , f ) = sup k : ? (k, n)

Karamchandani, Nikhil

2011-01-01T23:59:59.000Z

235

Broadcasting in unreliable radio networks  

E-Print Network (OSTI)

Practitioners agree that unreliable links, which sometimes deliver messages and sometime do not, are an important characteristic of wireless networks. In contrast, most theoretical models of radio networks fix a static set ...

Kuhn, Fabian

236

Broadcasting in Unreliable Radio Networks  

E-Print Network (OSTI)

Practitioners agree that unreliable links, which fluctuate between working and not working, are an important characteristic of wireless networks. In contrast, most theoretical models of radio networks fix a static set of ...

Oshman, Rotem

2010-06-08T23:59:59.000Z

237

Sharing the data center network  

Science Conference Proceedings (OSTI)

While today's data centers are multiplexed across many non-cooperating applications, they lack effective means to share their network. Relying on TCP's congestion control, as we show from experiments in production data centers, opens up the network to ...

Alan Shieh; Srikanth Kandula; Albert Greenberg; Changhoon Kim; Bikas Saha

2011-03-01T23:59:59.000Z

238

Reliable networks with unreliable sensors  

Science Conference Proceedings (OSTI)

Wireless sensor networks (WSNs) deployed in hostile environments suffer from a high rate of node failure. We investigate the effect of such failure rate on network connectivity. We provide a formal analysis that establishes the relationship between node ...

Srikanth Sastry; Tsvetomira Radeva; Jianer Chen; Jennifer L. Welch

2011-01-01T23:59:59.000Z

239

Multiple network interface core apparatus and method  

DOE Patents (OSTI)

A network interface controller and network interface control method comprising providing a single integrated circuit as a network interface controller and employing a plurality of network interface cores on the single integrated circuit.

Underwood, Keith D. (Albuquerque, NM); Hemmert, Karl Scott (Albuquerque, NM)

2011-04-26T23:59:59.000Z

240

Design and evaluation of a hybrid sensor network for cane toad monitoring  

Science Conference Proceedings (OSTI)

This article investigates a wireless acoustic sensor network applicationmonitoring amphibian populations in the monsoonal woodlands of northern Australia. Our goal is to use automatic recognition of animal vocalizations to census the populations ... Keywords: Sensor networks, acoustic, application, high frequency sampling, hybrid, solar energy

Wen Hu; Nirupama Bulusu; Chun Tung Chou; Sanjay Jha; Andrew Taylor; Van Nghia Tran

2009-02-01T23:59:59.000Z

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


241

What SNMP data can tell us about edge-to-edge network performance  

Science Conference Proceedings (OSTI)

With the high speeds of today's networks, monitoring information is most of the time either summarized or sampled. This policy is even more profound in network backbones, where aggregation of data from several sources and in very high speeds is often ...

Demetris Antoniades, Kejia Hu, Alex Sim, Constantine Dovrolis

2013-03-01T23:59:59.000Z

242

Application of neural networks to waste site screening  

Science Conference Proceedings (OSTI)

Waste site screening requires knowledge of the actual concentrations of hazardous materials and rates of flow around and below the site with time. The present approach consists primarily of drilling boreholes near contaminated sites and chemically analyzing the extracted physical samples and processing the data. This is expensive and time consuming. The feasibility of using neural network techniques to reduce the cost of waste site screening was investigated. Two neural network techniques, gradient descent back propagation and fully recurrent back propagation were utilized. The networks were trained with data received from Westinghouse Hanford Corporation. The results indicate that the network trained with the fully recurrent technique shows satisfactory generalization capability. The predicted results are close to the results obtained from a mathematical flow prediction model. It is possible to develop a new tool to predict the waste plume, thus substantially reducing the number of the bore sites and samplings. There are a variety of applications for this technique in environmental site screening and remediation. One of the obvious applications would be for optimum well siting. A neural network trained from the existing sampling data could be utilized to decide where would be the best position for the next bore site. Other applications are discussed in the report.

Dabiri, A.E.; Garrett, M.; Kraft, T.; Hilton, J.; VanHammersveld, M.

1993-02-01T23:59:59.000Z

243

Production Network Supplier Characterization Project  

Science Conference Proceedings (OSTI)

... and compare energy and material efficiency across supply chain. No standard activities are presently identified for production network resilience ...

2012-05-29T23:59:59.000Z

244

Advanced Network Technologies Division Homepage  

Science Conference Proceedings (OSTI)

... network technologies, and develops, demonstrates, and ... project to develop measurement methodologies ... assist industry in developing standards for ...

2013-01-17T23:59:59.000Z

245

BER Science Network Requirements  

Science Conference Proceedings (OSTI)

The Energy Sciences Network (ESnet) is the primary provider of network connectivity for the US Department of Energy Office of Science, the single largest supporter of basic research in the physical sciences in the United States. In support of the Office of Science programs, ESnet regularly updates and refreshes its understanding of the networking requirements of the instruments, facilities, scientists, and science programs that it serves. This focus has helped ESnet to be a highly successful enabler of scientific discovery for over 20 years. In April 2010 ESnet and the Office of Biological and Environmental Research, of the DOE Office of Science, organized a workshop to characterize the networking requirements of the science programs funded by BER. The requirements identified at the workshop are summarized and described in more detail in the case studies and the Findings section. A number of common themes emerged from the case studies and workshop discussions. One is that BER science, like many other disciplines, is becoming more and more distributed and collaborative in nature. Another common theme is that data set sizes are exploding. Climate Science in particular is on the verge of needing to manage exabytes of data, and Genomics is on the verge of a huge paradigm shift in the number of sites with sequencers and the amount of sequencer data being generated.

Dart, Eli; Tierney, Brian

2010-11-01T23:59:59.000Z

246

Tutorial on biological networks  

Science Conference Proceedings (OSTI)

Understanding how the functioning of a biological system emerges from the interactions among its components is a long-standing goal of network science. Fomented by developments in high-throughput technologies to characterize biomolecules and their interactions, ... Keywords: Biological Data Mining, Data Mining Software Tools, Science and Technology

Francisco G. Vital-Lopez; Vesna Memievi?; Bhaskar Dutta

2012-07-01T23:59:59.000Z

247

Social network probability mechanics  

Science Conference Proceedings (OSTI)

A new model for a random graph is proposed that can be constructed from empirical data and has some desirable properties compared to scale-free graphs [1, 2, 3] for certain applications. The newly proposed random graph maintains the same "small-world" ... Keywords: change detection, random graph, small-world, social networks

Ian A. Mcculloh; Joshua Lospinoso; Kathleen Carley

2007-12-01T23:59:59.000Z

248

Microsystem process networks  

DOE Patents (OSTI)

Various aspects and applications of microsystem process networks are described. The design of many types of Microsystems can be improved by ortho-cascading mass, heat, or other unit process operations. Microsystems having energetically efficient microchannel heat exchangers are also described. Detailed descriptions of numerous design features in microcomponent systems are also provided.

Wegeng, Robert S. (Richland, WA); TeGrotenhuis, Ward E. (Kennewick, WA); Whyatt, Greg A. (West Richland, WA)

2007-09-18T23:59:59.000Z

249

Microsystem process networks  

DOE Patents (OSTI)

Various aspects and applications or microsystem process networks are described. The design of many types of microsystems can be improved by ortho-cascading mass, heat, or other unit process operations. Microsystems having energetically efficient microchannel heat exchangers are also described. Detailed descriptions of numerous design features in microcomponent systems are also provided.

Wegeng, Robert S [Richland, WA; TeGrotenhuis, Ward E [Kennewick, WA; Whyatt, Greg A [West Richland, WA

2010-01-26T23:59:59.000Z

250

Microsystem process networks  

DOE Patents (OSTI)

Various aspects and applications of microsystem process networks are described. The design of many types of microsystems can be improved by ortho-cascading mass, heat, or other unit process operations. Microsystems having exergetically efficient microchannel heat exchangers are also described. Detailed descriptions of numerous design features in microcomponent systems are also provided.

Wegeng, Robert S. (Richland, WA); TeGrotenhuis, Ward E. (Kennewick, WA); Whyatt, Greg A. (West Richland, WA)

2006-10-24T23:59:59.000Z

251

Toward network data independence  

Science Conference Proceedings (OSTI)

A number of researchers have become interested in the design of global-scale networked systems and applications. Our thesis here is that the database community's principles and technologies have an important role to play in the design of these systems. ...

Joseph M. Hellerstein

2003-09-01T23:59:59.000Z

252

Transactional Network Platform: Applications  

Science Conference Proceedings (OSTI)

In FY13, Pacific Northwest National Laboratory (PNNL) with funding from the Department of Energys (DOEs) Building Technologies Office (BTO) designed, prototyped and tested a transactional network platform to support energy, operational and financial transactions between any networked entities (equipment, organizations, buildings, grid, etc.). Initially, in FY13, the concept demonstrated transactions between packaged rooftop air conditioners and heat pump units (RTUs) and the electric grid using applications or "agents" that reside on the platform, on the equipment, on a local building controller or in the Cloud. The transactional network project is a multi-lab effort with Oakridge National Laboratory (ORNL) and Lawrence Berkeley National Laboratory (LBNL) also contributing to the effort. PNNL coordinated the project and also was responsible for the development of the transactional network (TN) platform and three different applications associated with RTUs. This document describes two applications or "agents" in details, and also summarizes the platform. The TN platform details are described in another companion document.

Katipamula, Srinivas; Lutes, Robert G.; Ngo, Hung; Underhill, Ronald M.

2013-10-31T23:59:59.000Z

253

Gas sampling in the DST  

SciTech Connect

Characterization of the rock-fluid interactions in the DST will play an important role in understanding the performance of waste package materials and radionuclide transport through the altered zone of a repository. Consequently, the chemistry of fluids and gases originating in the pore space of the rock and the changing compositions observed with time and temperature will be targeted for study in the chemistry boreholes of the DST. The chemical holes have been lined with SEAMIST (Science Engineering Associate Membrane In situ Sampling Technology) liners that allow gas and fluid from the pore spaces of the rock walls to be sampled on-site periodically. The concentrations of certain chemical species in the gases and fluids sampled at those locations will then be analyzed back in the laboratory. The baseline sampling of the rock-pore gases (prior to heater turn- on) is described.

DeLoach, L.; Chairappa, M.; Martinelli, R.; Glassley, B.

1998-01-12T23:59:59.000Z

254

Microfluidic Sample Preparation for Immunoassays  

SciTech Connect

Researchers at Lawrence Livermore National Laboratory are developing means to collect and identify fluid-based biological pathogens in the forms of proteins, viruses, and bacteria. to support detection instruments, they are developing a flexible fluidic sample preparation unit. The overall goal of this Microfluidic Module is to input a fluid sample, containing background particulates and potentially target compounds, and deliver a processed sample for detection. They are developing techniques for sample purification, mixing, and filtration that would be useful to many applications including immunologic and nucleic acid assays. Many of these fluidic functions are accomplished with acoustic radiation pressure or dielectrophoresis. They are integrating these technologies into packaged systems with pumps and valves to control fluid flow through the fluidic circuit.

Visuri, S; Benett, W; Bettencourt, K; Chang, J; Fisher, K; Hamilton, J; Krulevitch, P; Park, C; Stockton, C; Tarte, L; Wang, A; Wilson, T

2001-08-09T23:59:59.000Z

255

Multi-AUV control and adaptive sampling in Monterey Bay  

E-Print Network (OSTI)

AbstractOperations with multiple autonomous underwater vehicles (AUVs) have a variety of underwater applications. For example, a coordinated group of vehicles with environmental sensors can perform adaptive ocean sampling at the appropriate spatial and temporal scales. We describe a methodology for cooperative control of multiple vehicles based on virtual bodies and artificial potentials (VBAP). This methodology allows for adaptable formation control and can be used for missions such as gradient climbing and feature tracking in an uncertain environment. We discuss our implementation on a fleet of autonomous underwater gliders and present results from sea trials in Monterey Bay in August, 2003. These at-sea demonstrations were performed as part of the Autonomous Ocean Sampling Network (AOSN) II project. Index TermsAdaptive sampling, autonomous underwater vehicles (AUVs), cooperative control, formations, gradient climbing, underwater gliders. I.

Edward Fiorelli; Naomi Ehrich Leonard; Senior Member; Pradeep Bhatta; Derek A. Paley; Student Member; Ralf Bachmayer; David M. Fratantoni

2004-01-01T23:59:59.000Z

256

BWR Fuel Deposit Sample Evaluation  

Science Conference Proceedings (OSTI)

River Bend Nuclear Power Station, a boiling water reactor (BWR) plant, experienced fuel defects during Cycle 11. The failed fuel pins were identified during the subsequent refueling outage. To assist analysis of the fuel failure root cause, crud flake deposit samples were collected for analyses. Results on the morphology and distribution of chemical elements in four tenacious crud flakes that are associated with the fuel failures are reported in EPRI report 1009733, BWR Fuel Deposit Sample EvaluationRiv...

2005-11-29T23:59:59.000Z

257

Theorizing mobility in community networks  

Science Conference Proceedings (OSTI)

Community networks emerged in North America during the late 1970s and early 1980s. During the past three decades, paradigms for networked information, services, and collaboration as resources for community development have evolved in many respects. In ... Keywords: Community informatics, Community networks, Municipal wireless

John M. Carroll; Mary Beth Rosson

2008-12-01T23:59:59.000Z

258

Mobility Modeling for Personal Networks  

Science Conference Proceedings (OSTI)

A Personal Network (PN) is a user-centric design interconnecting numerous devices belonging to a user in different geographic locations, such as home, office, car, etc., to form a single global network to offer fully personalized services. In PNs devices ... Keywords: Mobility model, PN clustering protocol, PN mobility model, Personal Networks, Stability analysis

Yanying Gu; R. Venkatesha Prasad; Ignas Niemegeers

2011-05-01T23:59:59.000Z

259

Spatiotemporal multicast in sensor networks  

Science Conference Proceedings (OSTI)

Sensor networks often involve the monitoring of mobile phenomena. We believe this task can be facilitated by a spatiotemporal multicast protocol which we call "mobicast". Mobicast is a novel spatiotemporal multicast protocol that distributes a message ... Keywords: mobicast, network geometry, protocols, spatiotemporal multicast, wireless ad hoc networks

Qingfeng Huang; Chenyang Lu; Gruia-Catalin Roman

2003-11-01T23:59:59.000Z

260

Online social networks in economics  

Science Conference Proceedings (OSTI)

This paper describes how economists study social networks. While economists borrow from other fields like sociology or computer science, their approach of modeling of social networks is distinguished by the emphasis on the role of choices under constraints. ... Keywords: Economics, Information transmission, Social networks

Adalbert Mayer

2009-06-01T23:59:59.000Z

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


261

Security for wireless sensor networks  

Science Conference Proceedings (OSTI)

This chapter identifies the vulnerabilities associated with the operational paradigms currently employed by Wireless Sensor Networks. A survey of current WSN security research is presented. The security issues of Mobile Ad-Hoc Networks and infrastructure ... Keywords: WSN, security, sensor networks, wireless

Sasikanth Avancha; Jeffrey Undercoffer; Anupam Joshi; John Pinkston

2004-01-01T23:59:59.000Z

262

Stochastic hub and spoke networks  

E-Print Network (OSTI)

life to the early Roman water management and road network systems to modern day transportation systems and social networks such as Facebook and Twitter. The topic of this PhD thesis is an in-depth research study on a specific type of network system...

Hult, Edward Eric

2011-10-11T23:59:59.000Z

263

Social networking and scientific gateways  

Science Conference Proceedings (OSTI)

Online social networking has significantly increased in popularity over the past several years, with sites such as Facebook now boasting over 300 million members. Scientific gateways have much to gain by incorporating social networking functionality. ... Keywords: Elgg, Facebook, Ning, scientific gateways, social networking

Roger Curry; Cameron Kiddle; Rob Simmonds

2009-11-01T23:59:59.000Z

264

Body Area Networks: A Survey  

Science Conference Proceedings (OSTI)

Advances in wireless communication technologies, such as wearable and implantable biosensors, along with recent developments in the embedded computing area are enabling the design, development, and implementation of body area networks. This class of ... Keywords: body area networks, survey, wireless sensor networks

Min Chen; Sergio Gonzalez; Athanasios Vasilakos; Huasong Cao; Victor C. Leung

2011-04-01T23:59:59.000Z

265

Duplex sampling apparatus and method  

DOE Patents (OSTI)

An improved apparatus is provided for sampling a gaseous mixture and for measuring mixture components. The apparatus includes two sampling containers connected in series serving as a independently determine the amounts of condensable and noncondensable gases in admixture from a single sample. More specifically, a first container includes a first port capable of selectively connecting to and disconnecting from a sample source and a second port capable of selectively connecting to and disconnecting from a second container. A second container also includes a first port capable of selectively connecting to and disconnecting from the second port of the first container and a second port capable of either selectively connecting to and disconnecting from a differential pressure source. By cooling a mixture sample in the first container, the condensable vapors form a liquid, leaving noncondensable gases either as free gases or dissolved In the liquid. The condensed liquid is heated to drive out dissolved noncondensable gases, and all the noncondensable gases are transferred to the second container. Then the first and second containers are separated from one another in order to separately determine the amount of noncondensable gases and the amount of condensable gases in the sample.

Brown, P.E.; Lloyd, R.

1991-01-30T23:59:59.000Z

266

VANS Role in the Advanced Network Infrastructure  

E-Print Network (OSTI)

network operations, maintenance, and management is becominggoing network management, maintenance, and modification. Innetwork monitoring management, and maintenance operations

Sprafkin, Jeffrey P.

1992-01-01T23:59:59.000Z

267

Renewable Energy Nongovernmental Organization Network (RENOVE...  

Open Energy Info (EERE)

Nongovernmental Organization Network (RENOVE) Jump to: navigation, search Name Renewable Energy Nongovernmental Organization Network (RENOVE) Place Brasilia, Brazil Phone number...

268

Instructions for Using Virtual Private Network  

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

Virtual Private Network provides access to network drives, and is recommended for use only from a ETIS-provided laptop.

269

Multisensor Module for Networked Infomechanical Systems  

E-Print Network (OSTI)

Wireless networks links also include interfaces to distributed mote networks. Energy for MultiSensor node operation

Jason Gordon; Kris Porter; Lisa Shirachi; Rachel Scollans; Victor Chen; William Kaiser

2005-01-01T23:59:59.000Z

270

GAS MAIN SENSOR AND COMMUNICATIONS NETWORK SYSTEM  

Science Conference Proceedings (OSTI)

Automatika, Inc. was contracted by the Department of Energy (DOE) and with co-funding from the New York Gas Group (NYGAS), to develop an in-pipe natural gas prototype measurement and wireless communications system for assessing and monitoring distribution networks. In Phase II of this three-phase program, an improved prototype system was built for low-pressure cast-iron and high-pressure steel (including a no-blow installation system) mains and tested in a serial-network configuration in a live network in Long Island with the support of Keyspan Energy, Inc. The experiment was carried out in several open-hole excavations over a multi-day period. The prototype units (3 total) combined sensors capable of monitoring pressure, flow, humidity, temperature and vibration, which were sampled and combined in data-packages in an in-pipe master-repeater-slave configuration in serial or ladder-network arrangements. It was verified that the system was capable of performing all data-sampling, data-storage and collection as expected, yielding interesting results as to flow-dynamics and vibration-detection. Wireless in-pipe communications were shown to be feasible and the system was demonstrated to run off in-ground battery- and above-ground solar power. The remote datalogger access and storage-card features were demonstrated and used to log and post-process system data. Real-time data-display on an updated Phase-I GUI was used for in-field demonstration and troubleshooting.

Hagen Schempf

2004-09-30T23:59:59.000Z

271

Computing Divergence from a Surface Network: Comparison of the Triangle and Pentagon Methods  

Science Conference Proceedings (OSTI)

Two methods for creating gridded fields of divergence from irregularly spaced wind observations are evaluated by sampling analytic fields of cyclones and anticyclones of varying wavelengths using a surface network. For the triangle method, which ...

Jacqueline A. Dubois; Phillip L. Spencer

2005-08-01T23:59:59.000Z

272

Improved sample size determination for attributes and variables sampling  

Science Conference Proceedings (OSTI)

Earlier INMM papers have addressed the attributes/variables problem and, under conservative/limiting approximations, have reported analytical solutions for the attributes and variables sample sizes. Through computer simulation of this problem, we have calculated attributes and variables sample sizes as a function of falsification, measurement uncertainties, and required detection probability without using approximations. Using realistic assumptions for uncertainty parameters of measurement, the simulation results support the conclusions: (1) previously used conservative approximations can be expensive because they lead to larger sample sizes than needed; and (2) the optimal verification strategy, as well as the falsification strategy, are highly dependent on the underlying uncertainty parameters of the measurement instruments. 1 ref., 3 figs.

Stirpe, D.; Picard, R.R.

1985-01-01T23:59:59.000Z

273

Advanced Network Toolkit for Assessments  

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

Network Toolkit for Assessments Network Toolkit for Assessments and Remote Mapping (ANTFARM) Uses existing information to passively map control systems networks and identify cyber security perimeters Control systems operators require a map of their energy control system network in order to identify its electronic security perimeter, critical to meeting the North American Electric Reliability Corporation's (NERC) Critical Infrastructure Protection (CIP) standards. However, purchasing active, online scanning tools specifically for network mapping can be costly, and these tools can disrupt control system function, causing system latency and possibly affecting power supply. The ANTFARM software tool enables system operators to remotely and

274

Teacher Resource Center: Teacher Networks  

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

Teacher Networks Teacher Networks TRC Home TRC Fact Sheet Library Curricular Resources Science Fair Resources Bibliographies sciencelines The Best of sciencelines Archives Annotated List of URLs Catalog Teacher's Lounge Full Workshop Catalog Customized Workshops Scheduled Workshops Special Opportunities Teacher Networks Science Lab Fermilab Science Materials Samplers Order Form Science Safety Issues Tech Room Fermilab Web Resources Fermilab offers support to area networks where teachers share successful teaching materials and strategies. These groups meet monthly or bimonthly during the school year in local schools or colleges in order to share skills, teaching strategies and materials. Patterned after the Illinois State Physics Project, most of these networks are spin-offs of Fermilab's

275

Context-Dependent Network Agents  

Science Conference Proceedings (OSTI)

The design of dynamic networks and their embedded agents is one of the most challenging tasks in modern technology. This is particularly true of the U.S. power grid, the target application for the technology being developed by the Context-Dependent Network Agents (CDNA) Consortium in the EPRI/DOD Initiative on Complex Interactive Networks/Systems. This report develops the thesis that the agility and robustness of networks can be improved significantly by making some of the agents in the network more cont...

2000-05-23T23:59:59.000Z

276

Developing measurement selection strategy for neural network models  

Science Conference Proceedings (OSTI)

The paper deals with an application of the theory of optimum experimental design to the problem of selecting the data set for developing neural models. Another objective is to show that neural network trained with the samples obtained according to D-optimum ...

Przemys?aw Pretki; Marcin Witczak

2005-09-01T23:59:59.000Z

277

Fidelity and yield in a volcano monitoring sensor network  

Science Conference Proceedings (OSTI)

We present a science-centric evaluation of a 19-day sensor network deployment at Reventador, an active volcano in Ecuador. Each of the 16 sensors continuously sampled seismic and acoustic data at 100 Hz. Nodes used an event-detection algorithm to trigger ...

Geoff Werner-Allen; Konrad Lorincz; Jeff Johnson; Jonathan Lees; Matt Welsh

2006-11-01T23:59:59.000Z

278

Towards a task oriented method for accessing network based services  

Science Conference Proceedings (OSTI)

Today's networked users are required to configure a number of different network settings on their computer in order to access specific network based services. For example, these users need to know whether to enable a Virtual Private Network (VPN) tunnel ... Keywords: borderless networks, flyout, identity based networking, network access, network security, networking, user credentials, user interface, virtual private network

Nils Pedersen; Paul Clark; Martine Freiberger

2010-11-01T23:59:59.000Z

279

On the availability of networks  

E-Print Network (OSTI)

In all networks that provide a service to the consumer, one of the main performance indicators is availability. The consumer, the user of the service, wants to be able to use the service for at least X % of the time. In order to be able to make such guarantees and commit to them in Service Level Agreements, network operators need to know their network availability. In this paper, we discuss how network availability can be algorithmically computed and we derive analytical expressions for several different network topologies. Finally we show how these results can be used to compute availability of real-life networks, such as SURFnet a high-speed Dutch national network.

Wenzhu Zou; Milena Janic; Robert Kooij; O Kuipers

2007-01-01T23:59:59.000Z

280

Laboratory Access | Sample Preparation Laboratories  

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

Access Access Planning Ahead Planning Ahead Please complete the Beam Time Request (BTR) and Support Request forms thourgh the User Portal. Thorough chemical and sample information must be included in your BTR. Support Request forms include a list of collaborators that require laboratory access and your group's laboratory equipment requests. Researcher safety is taken seriously at SLAC. Please remember that radioactive materials, nanomaterials, and biohazardous materials have additional safety requirements. Refer to the SSRL or LCLS Safety Offices for further guidance. Upon Arrival Upon Arrival Once you arrive you must complete training and access forms before accessing the Sample Preparation Laboratories (SPL). All Sample Prep Lab doors are locked with access key codes. Once your SPL

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


281

SNL evaluation of Gigabit Passive Optical Networks (GPON).  

SciTech Connect

Gigabit Passive Optical Networks (GPON) is a networking technology which offers the potential to provide significant cost savings to Sandia National Laboratories in the area of network operations. However, a large scale GPON deployment requires a significant investment in equipment and infrastructure. Before a large scale GPON system was acquired and built, a small GPON system manufactured by Motorola was acquired and tested. The testing performed was to determine the suitability of GPON for use at SNL. This report documents that testing. This report presents test results of GPON system consisting of Motorola and Juniper equipment. The GPON system was tested in areas of data throughput, video conferencing, VOIP, security, and operations and management. The GPON system performed well in almost all areas. GPON will not meet the needs of the low percentage of users requiring a true 1-10 Gbps network connection. GPON will also most likely not meet the need of some servers requiring dedicated throughput of 1-10 Gbps. Because of that, there will be some legacy network connections that must remain. If these legacy network connections can not be reduced to a bare minimum and possibly consolidated to a few locations, any cost savings gained by switching to GPON will be negated by maintaining two networks. A contract has been recently awarded for new GPON equipment with larger buffers. This equipment should improve performance and further reduce the need for legacy network connections. Because GPON has fewer components than a typical hierarchical network, it should be easier to manage. For the system tested, the management was performed by using the AXSVison client. Access to the client must be tightly controlled, because if client/server communications are compromised, security will be an issue. As with any network, the reliability of individual components will determine overall system reliability. There were no failures with the routers, OLT, or Sun Workstation Management platform. There were however four ONTs that failed. Because of the small sample size of 64, and the fact that some of the ONTs were used units, no conclusions can be made. However, ONT reliability is an area of concern. Access to the fiber plant that GPON requires must be tightly controlled and all changes documented. The undocumented changes that were performed in the GPON test lab demonstrated the need for tight control and documentation. In summary, GPON should be able to meet the needs of most network users at Sandia National Laboratories. Because it supports voice, video, and data, it positions Sandia National Laboratories to deploy these services to the desktop. For the majority of corporate network users at Sandia National Laboratories GPON should be a suitable replacement for the legacy network.

Heckart, David G.; Roybal, Glen B.; Walker, Betty R.; Pratt, Thomas Joseph; Gossage, Steven Allen; Trujillo, Sandra M.; Fischer, Bob; Brenkosh, Joseph Peter; Rudolfo, Gerald F.; Dirks, David H.; Schutt, James Alan

2009-08-01T23:59:59.000Z

282

Definition: Surface Water Sampling | Open Energy Information  

Open Energy Info (EERE)

Water Sampling Jump to: navigation, search Dictionary.png Surface Water Sampling Water sampling is done to characterize the chemical, thermal, or hydrological properties of a...

283

Definition: Water Sampling | Open Energy Information  

Open Energy Info (EERE)

Sampling Jump to: navigation, search Dictionary.png Water Sampling Water sampling is done to characterize the chemical, thermal, or hydrological properties of a surface or...

284

An Iterative Rejection Sampling Method.  

E-Print Network (OSTI)

ar X iv :0 80 7. 28 23 v1 [ he p- ph ] 17 Ju l 2 00 8 Preprint typeset in JHEP style - HYPER VERSION Cavendish-HEP-08/10 An Iterative Rejection Sampling Method A. Sherstnev Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue... , Cambridge, CB3 0HE, UK and Scobeltsyn Institute of Nuclear Physics of Lomonosov Moscow State University, Moscow, Russia, 119992 (on leave) Abstract: In the note we consider an iterative generalisation of the rejection sampling method. In high energy physics...

Sherstnev, A

285

Energy-Efficient Networks  

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

Architecting and Operating Architecting and Operating Energy-Efficient Networks Inder Monga (ESnet) With input from Dan Kilper, Thierry Klein (Bell Labs) Vijay Sivaraman (UNSW, Australia) Jaafar Elmirghani (University of Leeds, UK) § Global research consortium representing industry, government and academic organizations § Launched in May 2010 § Focus on sustainability and growth § Holistic and ambitious: Goal of 1000x § 57 member organizations § 300+ leading scientists § Recognized by the World Economic Forum as an industry-led best practice toward sustainability DELIVER ARCHITECTURE, SPECIFICATIONS AND SOLUTIONS AND DEMONSTRATE KEY TECHNOLOGIES TO INCREASE NETWORK ENERGY EFFICIENCY BY A FACTOR 1000 COMPARED TO 2010 GREENTOUCH(tm) (www.greentouch.org)

286

Friends Troubleshooting Network: Towards  

E-Print Network (OSTI)

Content sharing is a popular usage of peerto -peer systems for its inherent scalability and low cost of maintenance. In this paper, we leverage this nature of peer-to-peer systems to tackle a new problem: automatic misconfiguration troubleshooting. In this setting, machine configurations from the peers are "shared" to diagnose the misconfigurations on a sick machine. A key challenge for such a troubleshooting system is privacy preservation. To this end, we construct Friends Troubleshooting Network (FTN), a peer-to-peer overlay network, where the links between peer machines reflect the friendship of their owners. To preserve privacy, we use historyless and futureless random-walk in the FTN, during which search along with parameter aggregation are carried out for the purpose of troubleshooting. Many of our techniques can be applied to other application scenarios that require privacy-preserving distributed computing and information aggregation. We have also identified a number of open challenges that remain to be addressed.

Privacy-Preserving Automatic Troubleshooting; Helen J. Wang; Yih-chun Hu; Chun Yuan; Zheng Zhang; Yi-min Wang; U. C. Berkeley

2004-01-01T23:59:59.000Z

287

Urban Network Practices  

Science Conference Proceedings (OSTI)

This report describes the findings of an underground distribution practices immersion conducted by the Electric Power Research Institute (EPRI) with Duke Energy Ohio. This immersion was conducted as part of a multiyear effort by EPRI to identify noteworthy practices in managing urban network systems. More specifically, this report profiles the practices (people, processes, and technology) in place at Duke Energy Ohio, a company serving the Cincinnati, Ohio, metropolitan area. In addition, this report hig...

2011-03-31T23:59:59.000Z

288

Urban Network System Practices  

Science Conference Proceedings (OSTI)

This report describes the results of Phase I of a multi-year effort to identify noteworthy practices in managing urban network systems. The report profiles the practices (people, processes, and technology) in place at two host utilities: Seattle City Light (SCL), a small (375,000 customers) municipal utility, and Consolidated Edison (Con Edison), a large (3.2 million customers) investor-owned utility. The results illustrate the similarities and differences between the two utilities, describe the challeng...

2008-07-23T23:59:59.000Z

289

Urban Network Systems Practices  

Science Conference Proceedings (OSTI)

This report describes the findings of an underground distribution practices immersion conducted by the Electric Power Research Institute (EPRI) with CenterPoint Energy (CenterPoint). This immersion was conducted as part of a multiyear effort by EPRI to identify noteworthy practices in managing urban network systems. The report profiles the practices (that is, people, processes, and technology) in place at CenterPoint, a company serving the Houston, Texas, metropolitan area. This report is one of a serie...

2010-12-02T23:59:59.000Z

290

Insecurity of Wireless Networks  

SciTech Connect

Wireless is a powerful core technology enabling our global digital infrastructure. Wi-Fi networks are susceptible to attacks on Wired Equivalency Privacy, Wi-Fi Protected Access (WPA), and WPA2. These attack signatures can be profiled into a system that defends against such attacks on the basis of their inherent characteristics. Wi-Fi is the standard protocol for wireless networks used extensively in US critical infrastructures. Since the Wired Equivalency Privacy (WEP) security protocol was broken, the Wi-Fi Protected Access (WPA) protocol has been considered the secure alternative compatible with hardware developed for WEP. However, in November 2008, researchers developed an attack on WPA, allowing forgery of Address Resolution Protocol (ARP) packets. Subsequent enhancements have enabled ARP poisoning, cryptosystem denial of service, and man-in-the-middle attacks. Open source systems and methods (OSSM) have long been used to secure networks against such attacks. This article reviews OSSMs and the results of experimental attacks on WPA. These experiments re-created current attacks in a laboratory setting, recording both wired and wireless traffic. The article discusses methods of intrusion detection and prevention in the context of cyber physical protection of critical Internet infrastructure. The basis for this research is a specialized (and undoubtedly incomplete) taxonomy of Wi-Fi attacks and their adaptations to existing countermeasures and protocol revisions. Ultimately, this article aims to provide a clearer picture of how and why wireless protection protocols and encryption must achieve a more scientific basis for detecting and preventing such attacks.

Sheldon, Frederick T [ORNL; Weber, John Mark [Dynetics, Inc.; Yoo, Seong-Moo [University of Alabama, Huntsville; Pan, W. David [University of Alabama, Huntsville

2012-01-01T23:59:59.000Z

291

AUTOMATING GROUNDWATER SAMPLING AT HANFORD  

Science Conference Proceedings (OSTI)

Until this past October, Fluor Hanford managed Hanford's integrated groundwater program for the U.S. Department of Energy (DOE). With the new contract awards at the Site, however, the CH2M HILL Plateau Remediation Company (CHPRC) has assumed responsibility for the groundwater-monitoring programs at the 586-square-mile reservation in southeastern Washington State. These programs are regulated by the Resource Conservation and Recovery Act (RCRA) and the Comprehensive Environmental Response Compensation and Liability Act (CERCLA). The purpose of monitoring is to track existing groundwater contamination from past practices, as well as other potential contamination that might originate from RCRA treatment, storage, and disposal (TSD) facilities. An integral part of the groundwater-monitoring program involves taking samples of the groundwater and measuring the water levels in wells scattered across the site. More than 1,200 wells are sampled each year. Historically, field personnel or 'samplers' have been issued pre-printed forms that have information about the well(s) for a particular sampling evolution. This information is taken from the Hanford Well Information System (HWIS) and the Hanford Environmental Information System (HEIS)--official electronic databases. The samplers used these hardcopy forms to document the groundwater samples and well water-levels. After recording the entries in the field, the samplers turned the forms in at the end of the day and the collected information was posted onto a spreadsheet that was then printed and included in a log book. The log book was then used to make manual entries of the new information into the software application(s) for the HEIS and HWIS databases. This is a pilot project for automating this tedious process by providing an electronic tool for automating water-level measurements and groundwater field-sampling activities. The automation will eliminate the manual forms and associated data entry, improve the accuracy of the information recorded, and enhance the efficiency and sampling capacity of field personnel. The goal of the effort is to eliminate 100 percent of the manual input to the database(s) and replace the management of paperwork by the field and clerical personnel with an almost entirely electronic process. These activities will include the following: scheduling the activities of the field teams, electronically recording water-level measurements, electronically logging and filing Groundwater Sampling Reports (GSR), and transferring field forms into the site-wide Integrated Document Management System (IDMS).

CONNELL CW; HILDEBRAND RD; CONLEY SF; CUNNINGHAM DE

2009-01-16T23:59:59.000Z

292

Multi-Flip Networks: Extending Symmetric Networks to Real Parallelism  

E-Print Network (OSTI)

In general, neural networks are regarded as models for massively parallel computation. But very often, this parallelism is rather limited, especially when considering symmetric networks. For instance, Hopfield networks do not really compute in parallel as their updating algorithm always requires sequential execution. Nevertheless, Hopfield networks can be used as auto-associative memories, were shown to have an expressive power equivalent to propositional logic, and can be used to solve several combinatorial problems. Extensions like the Boltzmann Machine with continuous activation functions can additionally be used to solve optimization problems. But, all of these approaches suffer from one disadvantage, namely the impossibility to perform simultaneous computations of more than one unit, i.e. real parallelism. We describe a recurrent network corresponding to a symmetric network and introduce a method of parallel updating multiple units. We show how this may be extended to ...

Antje Strohmaier; Fachgebiet Intellektik; Fachbereich Informatik; Technische Hochschule Darmstadt

1996-01-01T23:59:59.000Z

293

Model-Based Sampling, Inference and Imputation  

Reports and Publications (EIA)

Picking a sample through some randomization mechanism, such as random sampling withingroups (stratified random sampling), or, say, sampling every fifth item (systematic randomsampling), may be familiar to a lot of people.

Information Center

2012-03-13T23:59:59.000Z

294

Model-Based Sampling, Inference and Imputation  

Reports and Publications (EIA)

Picking a sample through some randomization mechanism, such as random sampling withingroups (stratified random sampling), or, say, sampling every fifth item (systematic randomsampling), may be familiar to a lot of people.

Neal Davis

2013-09-18T23:59:59.000Z

295

Recovery of semi-volatile organic compounds during sample preparation: Compilation for characterization of airborne particulate matter  

DOE Green Energy (OSTI)

Semi-volatile compounds present special analytical challenges not met by conventional methods for analysis of ambient particulate matter (PM). Accurate quantification of PM-associated organic compounds requires validation of the laboratory procedures for recovery over a wide volatility and polarity range. To meet these challenges, solutions of n-alkanes (nC{sub 12} to nC{sub 40}) and polycyclic aromatic hydrocarbons PAHs (naphthalene to benzo[ghi]perylene) were reduced in volume from a solvent mixture (equal volumes of hexane, dichloromethane and methanol), to examine recovery after reduction in volume. When the extract solution volume reached 0.5 mL the solvent was entirely methanol, and the recovery averaged 60% for n-alkanes nC{sub 12} to nC{sub 25} and PAHs from naphthalene to chrysene. Recovery of higher MW compounds decreased with MW, because of their insolubility in methanol. When the walls of the flasks were washed with 1 mL of equal parts hexane and dichloromethane (to reconstruct the original solvent composition), the recovery of nC{sub 18} and higher MW compounds increased dramatically, up to 100% for nC{sub 22}-nC{sub 32} and then slowly decreasing with MW due to insolubility. To examine recovery during extraction of the components of the High Capacity Integrated Gas and Particle Sampler, the same standards were used to spike its denuders and filters. For XAD-4 coated denuders and filters, normalized recovery was > 95% after two extractions. Recovery from spiked quartz filters matched the recovery from the coated surfaces for alkanes nC{sub 18} and larger, and for fluoranthene and larger PAHs. Lower MW compounds evaporated from the quartz filter with the spiking solvent. This careful approach allowed quantification of organics by correcting for volatility- and solubility-related sample preparation losses. This method is illustrated for an ambient sample collected with this sampler during the Texas Air Quality Study 2000.

Swartz, Erick; Stockburger, Leonard; Gundel, Lara

2002-05-01T23:59:59.000Z

296

A virtual ad hoc network testbed  

Science Conference Proceedings (OSTI)

Testing of applications for ad hoc networks poses a special technical challenge due to the difficulty of conducting experiments in an ad hoc network environment at a scale larger than a few nodes. One approach is to conduct experiments in a testbed that ... Keywords: MANETs, SITL, VAN, emulation, hybrid testbed, mobile ad hoc networks, mobile networks, network management, shadow nodes, simulation, software-in-, the-loop, virtual ad hoc networks, virtual machines, virtual networks, virtualisation

Alex Poylisher; Constantin Serban; John Lee; Tai-Chuan Lu; Ritu Chadha; Cho-Yu Jason Chiang; Robert Orlando; Kimberly Jakubowski

2010-07-01T23:59:59.000Z

297

Multiple crossbar network: A switched high-speed local network  

SciTech Connect

The Multiple Crossbar Network (MCN) is a prototype High-Speed Local Network at the Los Alamos National Laboratory. It will interconnect supercomputers, network servers and workstations from various commercial vendors. The MCN can also serve as a backbone for message traffic between local area networks. The MCN is a switched local network of switching nodes called Cross-Point Stars (CPs). Hosts and CPs are connected by 800-Mbit/s (100-Mbyte/s) point-to-point ANSI High-Speed Channels. CPs include RISC-based network protocol processors called Crossbar Interfaces and a switching core called the Crossbar Switch. Protocols include physical, data link, intranet, and network access functionality. Various internet and transport protocols are intended to run above the MCN protocol suite. A network management and simple naming service is also included within the Los Alamos Network Architecture. Immediate applications include visualization. The MCN is intended to also serve as a framework for multicomputer applications. 36 refs., 10 figs.

Hoebelheinrich, R.; Thomsen, R.

1989-01-01T23:59:59.000Z

298

Radio Planning of Energy-Aware Cellular Networks  

E-Print Network (OSTI)

Nov 3, 2010 ... Keywords: green networking, wireless, network design, coverage, network management, energy saving. Category 1: Applications -- OR and...

299

Restricted Bayesian Network Structure Learning  

E-Print Network (OSTI)

Learning the structure of a Bayesian network from data is a difficult problem, as its associated search space is exponentially large. As a consequence, researchers have studied learning Bayesian networks with a fixed structure, notably naive Bayesian networks and tree-augmented Bayesian networks. There is substantial evidence in the literature that the performance of such restricted networks can be surprisingly good. In this paper, we propose a restricted, polynomial time structure learning algorithm that is not as restrictive as both other approaches, and allows researchers to determine the right balance between performance in dealing with classification, as well as with respect to quality of the underlying probability distribution. The results obtained with this algorithm allows drawing some conclusions with regard to Bayesian-network structure learning in general.

Peter Lucas

2002-01-01T23:59:59.000Z

300

802.16 mesh networking  

E-Print Network (OSTI)

We present an overview of the 802.16 mesh protocol with a specific focus on the networking aspects of the protocol. We first review the 802.16 mesh Time Division Multiple Access (TDMA) technology, including state of the art research on scheduling algorithms required by the technology. We then propose an addressing assignment for the 802.16 mesh networks that allows the network layer to take advantage of Qualityof-Service (QoS) provided by the 802.16 mesh protocol. Our addressing scheme allows network layer management of QoS at the edge of the network, thus allowing for simplicity in design of mesh routers. We also overview the security infrastructure of 802.16 mesh networks and their flaws. We propose an end-to-end security scheme that simplifies the design of 802.16 mesh routers. 1

Petar Djukic; Shahrokh Valaee

2007-01-01T23:59:59.000Z

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


301

An Iterative Rejection Sampling Method  

E-Print Network (OSTI)

In the note we consider an iterative generalisation of the rejection sampling method. In high energy physics, this sampling is frequently used for event generation, i.e. preparation of phase space points distributed according to a matrix element squared $|M|^2$ for a scattering process. In many realistic cases $|M|^2$ is a complicated multi-dimensional function, so, the standard von Neumann procedure has quite low efficiency, even if an error reducing technique, like VEGAS, is applied. As a result of that, many of the $|M|^2$ calculations go to ``waste''. The considered iterative modification of the procedure can extract more ``unweighted'' events, i.e. distributed according to $|M|^2$. In several simple examples we show practical benefits of the technique and obtain more events than the standard von Neumann method, without any extra calculations of $|M|^2$.

A. Sherstnev

2008-07-17T23:59:59.000Z

302

Chemical Resources | Sample Preparation Laboratories  

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

Chemical Resources Chemical Resources Chemical Inventory All Sample Preparation Labs are stocked with an assortment of common solvents, acids, bases, buffers, and other reagents. See our Chemical Inventories for a list of available reagents. If you need large quantities of any chemicals, please order or bring your own supply (see below). Chemical Inventories Standard Operating Procedures (SOPs) If you will be working with any samples or reagents that are significantly toxic, reactive, corrosive, flammable, or otherwise especially hazardous, we may require an approved SOP before you can begin work. Examples: Reagents with an NFPA Rating of 3 or 4 in any category, nanomaterials, heavy metals, pyrophoric materials, water reactive materials. BLANK SOP SSRL BLANK SOP LCLS Ordering Chemicals

303

Techniques for multivariate sample design  

SciTech Connect

In this report we consider sampling methods applicable to the multi-product Annual Fuel Oil and Kerosene Sales Report (Form EIA-821) Survey. For years prior to 1989, the purpose of the survey was to produce state-level estimates of total sales volumes for each of five target variables: residential No. 2 distillate, other retail No. 2 distillate, wholesale No. 2 distillate, retail residual, and wholesale residual. For the year 1989, the other retail No. 2 distillate and wholesale No. 2 distillate variables were replaced by a new variable defined to be the maximum of the two. The strata for this variable were crossed with the strata for the residential No. 2 distillate variable, resulting in a single stratified No. 2 distillate variable. Estimation for 1989 focused on the single No. 2 distillate variable and the two residual variables. Sampling accuracy requirements for each product were specified in terms of the coefficients of variation (CVs) for the various estimates based on data taken from recent surveys. The target population for the Form EIA-821 survey includes companies that deliver or sell fuel oil or kerosene to end-users. The Petroleum Product Sales Identification Survey (Form EIA-863) data base and numerous state and commercial lists provide the basis of the sampling frame, which is updated as new data become available. In addition, company/state-level volumes for distillates fuel oil, residual fuel oil, and motor gasoline are added to aid the design and selection process. 30 refs., 50 figs., 10 tabs.

Williamson, M.A.

1990-04-01T23:59:59.000Z

304

A fracture network model for water flow and solute transport  

DOE Green Energy (OSTI)

This paper summarizes code development work and sample calculations for FRACNET, a two-dimensional steady state simulator of fluid flow and solute transport in fractured porous media. The model analyzes flow and transport by generating a fracture network based on statistical characteristics of fractures obtained from well logs and other data. After a network is generated, flow and tracer transport are computed for appropriate boundary conditions and wellbore source/sink terms. In addition, for a given realization, the code can be used to indicate whether the medium can be treated as an equivalent porous medium. 18 refs., 7 figs.

Robinson, B.A.

1989-01-01T23:59:59.000Z

305

JAMMING COMMUNICATION NETWORKS UNDER COMPLETE ...  

E-Print Network (OSTI)

Most papers on network interdiction are about preventing jam- ... cumulative energy received from all jamming devices exceeds some threshold value E: ?i.

306

Automating Network Security Assessment Automating ...  

Science Conference Proceedings (OSTI)

... Remediation is more involved 3. Whole network analysis is the next level ... $5K server (quad core, 32G RAM) Two weeks ...

2012-10-26T23:59:59.000Z

307

Advanced Credentialing for Trusted Networks  

back to their trust network profiles; and (4) an Internet accessible application that links member profiles to mobile applications. Advantages Hardware agnostic

308

United States National Seismographic Network  

SciTech Connect

The concept of a United States National Seismograph Network (USNSN) dates back nearly 30 years. The idea was revived several times over the decades. but never funded. For, example, a national network was proposed and discussed at great length in the so called Bolt Report (U. S. Earthquake Observatories: Recommendations for a New National Network, National Academy Press, Washington, D.C., 1980, 122 pp). From the beginning, a national network was viewed as augmenting and complementing the relatively dense, predominantly short-period vertical coverage of selected areas provided by the Regional Seismograph Networks (RSN`s) with a sparse, well-distributed network of three-component, observatory quality, permanent stations. The opportunity finally to begin developing a national network arose in 1986 with discussions between the US Geological Survey (USGS) and the Nuclear Regulatory Commission (NRC). Under the agreement signed in 1987, the NRC has provided $5 M in new funding for capital equipment (over the period 1987-1992) and the USGS has provided personnel and facilities to develop. deploy, and operate the network. Because the NRC funding was earmarked for the eastern United States, new USNSN station deployments are mostly east of 105{degree}W longitude while the network in the western United States is mostly made up of cooperating stations (stations meeting USNSN design goals, but deployed and operated by other institutions which provide a logical extension to the USNSN).

Buland, R. [Geological Survey, Denver, CO (United States)

1993-09-01T23:59:59.000Z

309

Green Power Network: News Archive  

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

to main content U.S. Department of Energy Energy Efficiency and Renewable Energy Green Power Network About the GPN Green Power Markets Buying Green Power Onsite Renewable...

310

Electronics, Lighting and Networks Group  

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

Electronics, Lighting and Networks Group NOTICE Due to the current lapse of federal funding, Berkeley Lab websites are accessible, but may not be updated until Congress approves...

311

Selfish Routing in Capacitated Networks  

E-Print Network (OSTI)

According to Wardrop's first principle, agents in a congested network choose their routes selfishly, a behavior that is captured by the Nash equilibrium of the underlying ...

Correa, Jose R.

2003-08-01T23:59:59.000Z

312

Networking RP @ DISI Fabrizio Granelli, Lab Coordinator  

E-Print Network (OSTI)

S and resource management Wireless mesh networks: WiFi, WiMax Cellular: transmission, protocols and network and management Distributed signaling Overlay to network mapping and cooperation Research Topics: Protocol Design-Layering Performance Improvement in Wireless Networks Congestion Control GRID & Overlay Networks Design of Wireless

Granelli, Fabrizio

313

Battery-aware scheduling inwireless mesh networks  

Science Conference Proceedings (OSTI)

Wireless mesh networks recently emerge as a flexible, low-cost and multipurpose networking platform with wired infrastructure connected to the Internet. A critical issue in mesh networks is to maintain network activities for a long lifetime with high ... Keywords: battery models, battery-awareness, energy efficiency, lifetime optimization, mesh routers, power scheduling, wireless mesh networks

Chi Ma; Zhenghao Zhang; Yuanyuan Yang

2008-04-01T23:59:59.000Z

314

Sensor network configuration under physical attacks  

Science Conference Proceedings (OSTI)

Sensor networks will typically operate in hostile environments, where they are susceptible to physical attacks resulting in physical node destructions. In this paper, we study impacts of physical attacks on network configuration w.r.t. lifetime. While ... Keywords: deployment, network configuration, network lifetime, physical attacks, physical node destruction, sensor networks

Xun Wang; Wenjun Gu; Kurt Schosek; Sriram Chellappan; Dong Xuan

2009-04-01T23:59:59.000Z

315

Transportation Networks and Location A Geometric Approach  

E-Print Network (OSTI)

Transportation Networks and Location A Geometric Approach Belén Palop1,2 1Departamento de March 2009 Florida State University #12;Belén Palop, UVa, SUNY Outline Transportation Network Model;Transportation Network Model Belén Palop, UVa, SUNY Outline Transportation Network Model Network placement

Palop del Río, Belén

316

Path selection in multi-layer networks  

Science Conference Proceedings (OSTI)

Multi-layer networks are computer networks where the configuration of the network can be changed dynamically at multiple layers. However, in practice, technologies at different layers may be incompatible to each other, which necessitates a careful choice ... Keywords: Multi-layer network, Network description, Path selection

Fernando Kuipers; Freek Dijkstra

2009-01-01T23:59:59.000Z

317

Monitoring of the electrical distribution network operation  

Science Conference Proceedings (OSTI)

Distribution network operation is determined by the behaviour of the load. To plan and analyse the electrical network operation, precise modelling of load is substantial. The adequate approach to understand the electrical distribution network operation ... Keywords: SCADA, busloads, distribution network, load monitoring, mathematical model of load, network operation monitoring, state estimation

Jako Kilter; Mati Meldorf

2009-02-01T23:59:59.000Z

318

Assessing the vulnerability of replicated network services  

Science Conference Proceedings (OSTI)

Client-server networks are pervasive, fundamental, and include such key networks as the Internet, power grids, and road networks. In a client-server network, clients obtain a service by connecting to one of a redundant set of servers. These networks ...

George Dean Bissias; Brian Neil Levine; Ramesh K. Sitaraman

2010-11-01T23:59:59.000Z

319

Parallel simulation of software defined networks  

Science Conference Proceedings (OSTI)

Existing network architectures fall short when handling networking trends, e.g., mobility, server virtualization, and cloud computing, as well as market requirements with rapid changes. Software-defined networking (SDN) is designed to transform network ... Keywords: parallel discrete event simulation, software-defined networking

Dong Jin, David M. Nicol

2013-05-01T23:59:59.000Z

320

Applying physical-layer network coding in wireless networks  

Science Conference Proceedings (OSTI)

A main distinguishing feature of a wireless network compared with a wired network is its broadcast nature, in which the signal transmitted by a node may reach several other nodes, and a node may receive signals from several other nodes, simultaneously. ...

Shengli Zhang; Soung Chang Liew

2010-01-01T23:59:59.000Z

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


321

Networked Graphics: Building Networked Games and Virtual Environments  

Science Conference Proceedings (OSTI)

This broad-ranging book equips programmers and designers with a thorough grounding in the techniques used to create truly network-enabled computer graphics and games. Written for graphics/game/VE developers and students, it assumes no prior knowledge ... Keywords: Computer Animation, Computer Graphics, Computer Science, Computers, Game Programming, Interactive & Multimedia, Networking, Video & Electronic, Virtual Reality

Anthony Steed; Manuel Fradinho Oliveira

2009-11-01T23:59:59.000Z

322

High Performance Network Monitoring  

SciTech Connect

Network Monitoring requires a substantial use of data and error analysis to overcome issues with clusters. Zenoss and Splunk help to monitor system log messages that are reporting issues about the clusters to monitoring services. Infiniband infrastructure on a number of clusters upgraded to ibmon2. ibmon2 requires different filters to report errors to system administrators. Focus for this summer is to: (1) Implement ibmon2 filters on monitoring boxes to report system errors to system administrators using Zenoss and Splunk; (2) Modify and improve scripts for monitoring and administrative usage; (3) Learn more about networks including services and maintenance for high performance computing systems; and (4) Gain a life experience working with professionals under real world situations. Filters were created to account for clusters running ibmon2 v1.0.0-1 10 Filters currently implemented for ibmon2 using Python. Filters look for threshold of port counters. Over certain counts, filters report errors to on-call system administrators and modifies grid to show local host with issue.

Martinez, Jesse E [Los Alamos National Laboratory

2012-08-10T23:59:59.000Z

323

Network Upgrade for the SLC: PEP II Network  

SciTech Connect

The PEP-II control system required a new network to support the system functions. This network, called CTLnet, is an FDDI/Ethernet based network using only TCP/IP protocols. An upgrade of the SLC Control System micro communications to use TCP/IP and SLCNET would allow all PEP-II control system nodes to use TCP/IP. CTLnet is private and separate from the SLAC public network. Access to nodes and control system functions is provided by multi-homed application servers with connections to both the private CTLnet and the SLAC public network. Monitoring and diagnostics are provided using a dedicated system. Future plans and current status information is included.

Crane, M.; Call, M.; Clark, S.; Coffman, F.; Himel, T.; Lahey, T.; Miller, E.; Sass, R.; /SLAC

2011-09-09T23:59:59.000Z

324

Opportunistic resource utilization networks-A new paradigm for specialized ad hoc networks  

Science Conference Proceedings (OSTI)

We present opportunistic resource utilization networks or oppnets, a novel paradigm of specialized ad hoc networks. We believe that applications can benefit from using specialized ad hoc networks that provide a natural basis for them, the basis more ... Keywords: Ad hoc networks, Oppnets, Opportunistic networks, Specialized ad hoc networks

Leszek Lilien; Ajay Gupta; Zill-E-Huma Kamal; Zijiang Yang

2010-03-01T23:59:59.000Z

325

A generic network interface architecture for a networked processor array (NePA)  

Science Conference Proceedings (OSTI)

Recently Network-on-Chip (NoC) technique has been proposed as a promising solution for on-chip interconnection network. However, different interface specification of integrated components raises a considerable difficulty for adopting NoC techniques. ... Keywords: interconnection network, multiprocessor systemon-chip (MPSoC), network interface, network-on-chip (NoC), networked processor array (NePA)

Seung Eun Lee; Jun Ho Bahn; Yoon Seok Yang; Nader Bagherzadeh

2008-02-01T23:59:59.000Z

326

Magnetometry with entangled atomic samples  

E-Print Network (OSTI)

We present a theory for the estimation of a scalar or a vector magnetic field by its influence on an ensemble of trapped spin polarized atoms. The atoms interact off-resonantly with a continuous laser field, and the measurement of the polarization rotation of the probe light, induced by the dispersive atom-light coupling, leads to spin-squeezing of the atomic sample which enables an estimate of the magnetic field which is more precise than that expected from standard counting statistics. For polarized light and polarized atoms, a description of the non-classical components of the collective spin angular momentum for the atoms and the collective Stokes vectors of the light-field in terms of effective gaussian position and momentum variables is practically exact. The gaussian formalism describes the dynamics of the system very effectively and accounts explicitly for the back-action on the atoms due to measurement and for the estimate of the magnetic field. Multi-component magnetic fields are estimated by the measurement of suitably chosen atomic observables and precision and efficiency is gained by dividing the atomic gas in two or more samples which are entangled by the dispersive atom-light interaction.

Vivi Petersen; Lars Bojer Madsen; Klaus Molmer

2004-09-28T23:59:59.000Z

327

Disens: scalable distributed sensor network simulation  

Science Conference Proceedings (OSTI)

Simulation is widely used for developing, evaluating and analyzing sensor network applications, especially when deploying a large scale sensor network remains expensive and labor intensive. However, due to its computation intensive nature, existent simulation ... Keywords: distributed simulation, sensor network, simulation

Ye Wen; Rich Wolski; Gregory Moore

2007-03-01T23:59:59.000Z

328

Routing Statistics for Unqueued Banyan Networks  

E-Print Network (OSTI)

Banyan networks comprise a large class of networks that have been used for interconnection in large-scale multiprocessors and telephone switching systems. Regular variants of Banyan networks, such as delta and butterfly ...

Knight, Thomas F., Jr.

1990-09-01T23:59:59.000Z

329

Neural Networks for Postprocessing Model Output: ARPS  

Science Conference Proceedings (OSTI)

The temperature forecasts of the Advanced Regional Prediction System are postprocessed by a neural network. Specifically, 31 stations are considered, and for each a neural network is developed. The nine input variables to the neural network are ...

Caren Marzban

2003-06-01T23:59:59.000Z

330

An overlay architecture for vehicular networks  

Science Conference Proceedings (OSTI)

We propose and discuss an overlay architecture relying on a mobile ad hoc network, called Arigatoni on wheels (Ariwheels for short). More specifically, Ariwheels is a virtual network organization that is designed for a vehicular network underlay environment. ...

Luigi Liquori; Diego Borsetti; Claudio Casetti; Carla-Fabiana Chiasserini

2008-05-01T23:59:59.000Z

331

New generation network architecture and software design  

Science Conference Proceedings (OSTI)

This article deals with new telecommunications networks, the reasons for changes, and the options telecommunications are facing today. The new generation of network architecture is discussed, and two network evolution case studies are presented as well ...

A. Caric; K. Toivo

2000-02-01T23:59:59.000Z

332

Evolution and statistics of biological regulatory networks  

E-Print Network (OSTI)

In this thesis, I study the process of evolution of the gene regulatory network in Escherichia coli. First, I characterize the portion of the network that has been documented, and then I simulate growth of the network. In ...

Chandalia, Juhi Kiran, 1979-

2005-01-01T23:59:59.000Z

333

Decentralized, adaptive resource allocation for sensor networks  

Science Conference Proceedings (OSTI)

This paper addresses the problem of resource allocation in sensor networks. We are concerned with how to allocate limited energy, radio bandwidth, and other resources to maximize the value of each node's contribution to the network. Sensor networks present ...

Geoffrey Mainland; David C. Parkes; Matt Welsh

2005-05-01T23:59:59.000Z

334

Adaptive networking for tele-immersion  

Science Conference Proceedings (OSTI)

Tele-Immersive applications possess an unusually broad range of networking requirements. As high-speed and Quality of Service-enabled networks emerge, it will becoming more difficult for developers of Tele-Immersion applications, and networked applications ...

Jason Leigh; Oliver Yu; Dan Schonfeld; Rashid Ansari; Eric He; Atul Nayak; Jinghua Ge; Naveen Krishnaprasad; Kyoung Park; Yong-joo Cho; Liujia Hu; Ray Fang; Alan Verlo; Linda Winkler; Thomas A. DeFanti

2001-01-01T23:59:59.000Z

335

A User Driven Dynamic Circuit Network Implementation  

E-Print Network (OSTI)

LCG-EGEE- 20080426.pdf ESnet (2008) [Online]. Available:the DOE Energy Science Network (ESnet) [5] has designed andIP core network. The ESnet IP core network is architected

Guok, Chin

2009-01-01T23:59:59.000Z

336

Electronic design automation for social networks  

Science Conference Proceedings (OSTI)

Online social networks are a growing internet phenomenon: they connect millions of individuals through sharing of common interests, political and religious views, careers, etc. Social networking websites are observing an ever-increasing number ... Keywords: EDA algorithms, social networks, verification

Andrew DeOrio; Valeria Bertacco

2010-06-01T23:59:59.000Z

337

Full-duplex underwater networking using CDMA .  

E-Print Network (OSTI)

??Establishing a full-duplex underwater network, researching and applying a CDMA protocol to this network, providing a recommendation for a full-duplex underwater network and providing recommendations (more)

Bektas, Kurtulus

2004-01-01T23:59:59.000Z

338

Packet-Switched Optical Networks  

Science Conference Proceedings (OSTI)

In this article, we present a platform design for packet-switched OTDM networks operating at ultrafast bit-rates for modern multiprocessor interconnects. The design is implemented in a prototype 8-node transparent shuffle network. The flow control in ... Keywords: Communication system interfaces, signalling, synchronization, clock and data recovery, PLLs

Ben Y. Yu; Paul Toliver; Robert J. Runser; Kung-Li Deng; Deyu Zhou; Ivan Glesk; Paul R. Prucnal

1998-01-01T23:59:59.000Z

339

RNEDE: Resilient Network Design Environment  

SciTech Connect

Modern living is more and more dependent on the intricate web of critical infrastructure systems. The failure or damage of such systems can cause huge disruptions. Traditional design of this web of critical infrastructure systems was based on the principles of functionality and reliability. However, it is increasingly being realized that such design objectives are not sufficient. Threats, disruptions and faults often compromise the network, taking away the benefits of an efficient and reliable design. Thus, traditional network design parameters must be combined with self-healing mechanisms to obtain a resilient design of the network. In this paper, we present RNEDEa resilient network design environment that that not only optimizes the network for performance but tolerates fluctuations in its structure that result from external threats and disruptions. The environment evaluates a set of remedial actions to bring a compromised network to an optimal level of functionality. The environment includes a visualizer that enables the network administrator to be aware of the current state of the network and the suggested remedial actions at all times.

Venkat Venkatasubramanian, Tanu Malik, Arun Giridh; Craig Rieger; Keith Daum; Miles McQueen

2010-08-01T23:59:59.000Z

340

Bayesian networks: A teacher's view  

Science Conference Proceedings (OSTI)

Teachers viewing Bayesian network-based proficiency estimates from a classroom full of students face a different problem from a tutor looking at one student at a time. Fortunately, individual proficiency estimates can be aggregated into classroom and ... Keywords: Aggregation, Bayesian networks, Computer graphics, Probabilities

Russell G. Almond; Valerie J. Shute; Jody S. Underwood; Juan-Diego Zapata-Rivera

2009-03-01T23:59:59.000Z

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


341

ESnet Network Measurement Current Status  

E-Print Network (OSTI)

1 ESnet Network Measurement Current Status Joe Metzger Jan 24th 2008 ESCC meeting Energy Sciences ­ Regular scheduled bandwidth testing · Internal to ESnet IP & SDN Network · External to important peers, and ESnet sites that are interested ­ Dynamic end-user testing via · perfSONAR · ESnet Performance Center

342

ESnet Network Measurement Current Status &  

E-Print Network (OSTI)

1 ESnet Network Measurement Current Status & Future Plans Joe Metzger - with slides copied from Networking for the Future of Science #12;2 Overview · ESnet Services ­ New content · LHC Requirements problems and get more systems deployed ­ Regular scheduled bandwidth testing · Internal to ESnet IP & SDN

343

Distance indexing on road networks  

Science Conference Proceedings (OSTI)

The processing of kNN and continuous kNN queries on spatial network databases (SNDB) has been intensively studied recently. However, there is a lack of systematic study on the computation of network distances, which is the most fundamental difference ...

Haibo Hu; Dik Lun Lee; Victor C. S. Lee

2006-09-01T23:59:59.000Z

344

ACDN: active content distribution network  

Science Conference Proceedings (OSTI)

A novel dynamic and active CDN architecture based on active network (ACDN) is proposed. The programmable character of active network makes it easier and quicker to configure new replica servers as well as deploy new policies on demand. A genetic algorithm ...

Yan Chen; Zeng-zhi Li; Zhi-gang Liao

2005-03-01T23:59:59.000Z

345

Bursty subgraphs in social networks  

Science Conference Proceedings (OSTI)

Data available through social media and content sharing platforms present opportunities for analysis and mining. In the context of social networks, it is interesting to formalize and locate bursts of activities amongst users, related to a particular ... Keywords: bursty subgraphs, information burst, social networks, twitter

Milad Eftekhar; Nick Koudas; Yashar Ganjali

2013-02-01T23:59:59.000Z

346

Navigation protocols in sensor networks  

Science Conference Proceedings (OSTI)

We develop distributed algorithms for adaptive sensor networks that respond to directing a target through a region of space. We model this problem as an online distributed motion planning problem. Each sensor node senses values in its perception space ... Keywords: Sensor networks, motes, navigation, potential field, robotics

Qun Li; Daniela Rus

2005-08-01T23:59:59.000Z

347

Fracture network modeling of a Hot Dry Rock geothermal reservoir  

DOE Green Energy (OSTI)

Fluid flow and tracer transport in a fractured Hot Dry Rock (HDR) geothermal reservoir are modeled using fracture network modeling techniques. The steady state pressure and flow fields are solved for a two-dimensional, interconnected network of fractures with no-flow outer boundaries and constant-pressure source and sink points to simulate wellbore-fracture intersections. The tracer response is simulated by particle tracking, which follows the progress of a representative sample of individual tracer molecules traveling through the network. Solute retardation due to matrix diffusion and sorption is handled easily with these particle tracking methods. Matrix diffusion is shown to have an important effect in many fractured geothermal reservoirs, including those in crystalline formations of relatively low matrix porosity. Pressure drop and tracer behavior are matched for a fractured HDR reservoir tested at Fenton Hill, NM.

Robinson, B.A.

1988-01-01T23:59:59.000Z

348

Environmental data for sites in the National Solar Data Network  

Science Conference Proceedings (OSTI)

The National Solar Data Program established solar energy systems in residential and commercial buildings across the United States. These solar sites are linked to a computer in the National Solar Data Network (NSDN). Data from this network is collected and analyzed to determine the thermal performance of each of the solar systems. The network consists of: (1) sensors which measure key performance parameters at a selected site; (2) a Site Data Acquisition Subsystem (SDAS); (3) telephone transmission circuits; and (4) a Central Data Processing System (CDPS). Sensor data are collected and stored on a cassette tape in the SDAS. For the majority of parameters, raw data is collected approximately every five minutes. Solar insolation and certain other parameters, which are subject to rapid variance, are sampled every 32 seconds. Environmental information collected at the sites for the reporting month are presented. The data include: insolation, temperature, wind, and humidity. (MHR)

Not Available

1980-05-01T23:59:59.000Z

349

Determining the Bayesian optimal sampling strategy in a hierarchical system.  

SciTech Connect

Consider a classic hierarchy tree as a basic model of a 'system-of-systems' network, where each node represents a component system (which may itself consist of a set of sub-systems). For this general composite system, we present a technique for computing the optimal testing strategy, which is based on Bayesian decision analysis. In previous work, we developed a Bayesian approach for computing the distribution of the reliability of a system-of-systems structure that uses test data and prior information. This allows for the determination of both an estimate of the reliability and a quantification of confidence in the estimate. Improving the accuracy of the reliability estimate and increasing the corresponding confidence require the collection of additional data. However, testing all possible sub-systems may not be cost-effective, feasible, or even necessary to achieve an improvement in the reliability estimate. To address this sampling issue, we formulate a Bayesian methodology that systematically determines the optimal sampling strategy under specified constraints and costs that will maximally improve the reliability estimate of the composite system, e.g., by reducing the variance of the reliability distribution. This methodology involves calculating the 'Bayes risk of a decision rule' for each available sampling strategy, where risk quantifies the relative effect that each sampling strategy could have on the reliability estimate. A general numerical algorithm is developed and tested using an example multicomponent system. The results show that the procedure scales linearly with the number of components available for testing.

Grace, Matthew D.; Ringland, James T.; Boggs, Paul T.; Pebay, Philippe Pierre

2010-09-01T23:59:59.000Z

350

Model-Based Sampling and Inference  

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

Model-Based Sampling, Inference and Imputation Model-Based Sampling, Inference and Imputation James R. Knaub, Jr., Energy Information Administration, EI-53.1 James.Knaub@eia.doe.gov Key Words: Survey statistics, Randomization, Conditionality, Random sampling, Cutoff sampling Abstract: Picking a sample through some randomization mechanism, such as random sampling within groups (stratified random sampling), or, say, sampling every fifth item (systematic random sampling), may be familiar to a lot of people. These are design-based samples. Estimates of means and totals for an entire population may be inferred from such a sample, along with estimation of the amount of error that might be expected. However, inference based on a sample and its (modeled) relationship to other data may be less familiar. If there is enough

351

Definition: Gas Flux Sampling | Open Energy Information  

Open Energy Info (EERE)

Gas Flux Sampling Jump to: navigation, search Dictionary.png Gas Flux Sampling Gas flux sampling measures the flow of volatile gas emissions from a specific location and compares...

352

Licensing Guide and Sample License  

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

TEI:HNOL06Y TRANSFER WORKIN6 6ROUP TEI:HNOL06Y TRANSFER WORKIN6 6ROUP Lic:en!iing Guide and Sample Lic:en!ie ·~ ICan.u City Plan I OFermilab ~OAK ~RIDGE Nuioul~.

353

The Advantages of a Mixed-Band Radar Network for Severe Weather Operations: A Case Study of 13 May 2009  

Science Conference Proceedings (OSTI)

Adding a mix of X- or C-band radars to the current Weather Surveillance Radar-1988 Doppler (WSR-88D) network could address several limitations of the network, including improvements to spatial gaps in low-level coverage and temporal sampling of ...

Vivek N. Mahale; Jerald A. Brotzge; Howard B. Bluestein

354

Phoebus: Network Middleware for Next-Generation Network Computing  

SciTech Connect

The Phoebus project investigated algorithms, protocols, and middleware infrastructure to improve end-to-end performance in high speed, dynamic networks. The Phoebus system essentially serves as an adaptation point for networks with disparate capabilities or provisioning. This adaptation can take a variety of forms including acting as a provisioning agent across multiple signaling domains, providing transport protocol adaptation points, and mapping between distributed resource reservation paradigms and the optical network control plane. We have successfully developed the system and demonstrated benefits. The Phoebus system was deployed in Internet2 and in ESnet, as well as in GEANT2, RNP in Brazil and over international links to Korea and Japan. Phoebus is a system that implements a new protocol and associated forwarding infrastructure for improving throughput in high-speed dynamic networks. It was developed to serve the needs of large DOE applications on high-performance networks. The idea underlying the Phoebus model is to embed Phoebus Gateways (PGs) in the network as on-ramps to dynamic circuit networks. The gateways act as protocol translators that allow legacy applications to use dedicated paths with high performance.

Martin Swany

2012-06-16T23:59:59.000Z

355

Green Power Network: Publications  

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

News News TVA Seeks 126 MW of Renewables in 2014 December 2013 More News More News Subscribe to E-Mail Update Subscribe to e-mail update Events EPA Webinar - The Power of Aggregated Purchasing: How to Green Your Electricity Supply & Save Money January 15, 2014 1:00-2:00 p.m. ET Previous Webinars More News Features Green Power Market Status Report (2011 Data) Featured Green Power Reports Publications Alphabetical Listing Categorical Listing Chronological Listing Featured Reports The Green Power Network library contains articles and reports on green power, green pricing, and related topics. Whenever possible, we provide a link to publications available online. The publications are grouped by the following topics to help you in your search. If you are aware of other documents that should be added to this list, please notify our Webmaster.

356

Wellbore Integrity Network  

SciTech Connect

In this presentation, we review the current state of knowledge on wellbore integrity as developed in the IEA Greenhouse Gas Programme's Wellbore Integrity Network. Wells are one of the primary risks to the successful implementation of CO{sub 2} storage programs. Experimental studies show that wellbore materials react with CO{sub 2} (carbonation of cement and corrosion of steel) but the impact on zonal isolation is unclear. Field studies of wells in CO{sub 2}-bearing fields show that CO{sub 2} does migrate external to casing. However, rates and amounts of CO{sub 2} have not been quantified. At the decade time scale, wellbore integrity is driven by construction quality and geomechanical processes. Over longer time-scales (> 100 years), chemical processes (cement degradation and corrosion) become more important, but competing geomechanical processes may preserve wellbore integrity.

Carey, James W. [Los Alamos National Laboratory; Bachu, Stefan [Alberta Innovates

2012-06-21T23:59:59.000Z

357

Better Buildings Partners: Better Buildings Residential Network  

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

Network The Better Buildings Residential Network connects energy efficiency programs and partners to share best practices and learn from one another to dramatically increase the...

358

Sustainable Agriculture Network | Open Energy Information  

Open Energy Info (EERE)

"Sustainable Agriculture Network" Retrieved from "http:en.openei.orgwindex.php?titleSustainableAgricultureNetwork&oldid312235" Categories: Clean Energy Organizations...

359

GLOBAL OPTIMIZATION OF NONLINEAR NETWORK DESIGN 1 ...  

E-Print Network (OSTI)

of nonlinear network design refers to the minimum cost design of resistances on a .... common fluid networks of water, crude oil, natural gas satisfy the above...

360

Intelligent Fluid Infrastructure for Embedded Networking  

E-Print Network (OSTI)

mobile element into the networking infrastructure.Our fluid infrastructure design saves significant energy inIntelligent Fluid Infrastructure for Embedded Networks Aman

Kansal, Aman; Somasundara, Arun; Jea, David C; Srivastava, Mani B; Estrin, D

2004-01-01T23:59:59.000Z

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


361

Modeling Satellite District Heating and Cooling Networks.  

E-Print Network (OSTI)

??Satellite District Heating and Cooling (DHC) systems offer an alternative structure to conventional, centralized DHC networks. Both use a piping network carrying steam or water (more)

Rulff, David

2011-01-01T23:59:59.000Z

362

Membership Criteria: Better Buildings Residential network  

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

Criteria BETTER BUILDINGS RESIDENTIAL NETWORK Learn more at betterbuildings.energy.govbbrn Better Buildings Residential Network (BBRN) members must be supportive of residential...

363

Power Management in Disruption Tolerant Networks .  

E-Print Network (OSTI)

??Disruption Tolerant Networks (DTNs) are mobile wireless networks that are designed to work in highly-challenged environments where the density of nodes is insufficient to support (more)

Jun, Hyewon

2007-01-01T23:59:59.000Z

364

Fermilab | Science at Fermilab | Computing | Networking  

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

For years, Fermilab has been the largest user of Energy Services Network, or ESnet, a network the Department of Energy runs through Lawrence Berkeley National Laboratory...

365

Advance Network Reservation and Provisioning for Science  

E-Print Network (OSTI)

such as Internet 2 [1] and ESnet (Energy Sciences Network) [advanced bandwidth reservation in ESnet for on-demand highto improve the current ESnet advance network reservation

Balman, Mehmet

2010-01-01T23:59:59.000Z

366

Data and Networking | Argonne Leadership Computing Facility  

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

Networking Data and Networking Data Storage The ALCF's data storage system is used to retain the data generated by simulations and visualizations. Disk storage provides...

367

Incremental Network Design with Shortest Paths  

E-Print Network (OSTI)

We compare the following three strategies ... For the third strategy we get .... Rather than considering network expansion, we can consider network maintenance.

368

The Ergodic Capacity of Interference Networks  

E-Print Network (OSTI)

A. Jafar, The ergodic capacity of interference networks,Gupta and P. R. Kumar, The capacity of wireless networks,cooperation achieves optimal capacity scaling in ad hoc

Jafar, Syed A

2010-01-01T23:59:59.000Z

369

On Cyber Security for Networked Control Systems  

E-Print Network (OSTI)

9.2.2 Security Interdependence . . . . . . Bounded Control7 Security Constrained Networked Control 7.1Inputs 9 Security Interdependencies for Networked 9.1

Amin, Saurabh

2011-01-01T23:59:59.000Z

370

Management Information Systems (MIS) Sample Occupations  

E-Print Network (OSTI)

Support Specialist Computer and Information Systems Manager Computer Training Specialist Consultant Data Recruiter Knowledge Manager Logistics Manager Management Analysis MIS Director/Specialist Network Securities & Exchange Commission Website Design Companies Wholesale & Retail Companies Operations Manager

Ronquist, Fredrik

371

Converging Redundant Sensor Network Information for Improved Building Control  

Science Conference Proceedings (OSTI)

This project investigated the development and application of sensor networks to enhance building energy management and security. Commercial, industrial and residential buildings often incorporate systems used to determine occupancy, but current sensor technology and control algorithms limit the effectiveness of these systems. For example, most of these systems rely on single monitoring points to detect occupancy, when more than one monitoring point could improve system performance. Phase I of the project focused on instrumentation and data collection. During the initial project phase, a new occupancy detection system was developed, commissioned and installed in a sample of private offices and open-plan office workstations. Data acquisition systems were developed and deployed to collect data on space occupancy profiles. Phase II of the project demonstrated that a network of several sensors provides a more accurate measure of occupancy than is possible using systems based on single monitoring points. This phase also established that analysis algorithms could be applied to the sensor network data stream to improve the accuracy of system performance in energy management and security applications. In Phase III of the project, the sensor network from Phase I was complemented by a control strategy developed based on the results from the first two project phases: this controller was implemented in a small sample of work areas, and applied to lighting control. Two additional technologies were developed in the course of completing the project. A prototype web-based display that portrays the current status of each detector in a sensor network monitoring building occupancy was designed and implemented. A new capability that enables occupancy sensors in a sensor network to dynamically set the 'time delay' interval based on ongoing occupant behavior in the space was also designed and implemented.

Dale Tiller; D. Phil; Gregor Henze; Xin Guo

2007-09-30T23:59:59.000Z

372

Surface Water Sampling | Open Energy Information  

Open Energy Info (EERE)

Surface Water Sampling Surface Water Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Surface Water Sampling Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Water Sampling Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Water composition and source of fluids Thermal: Water temperature Dictionary.png Surface Water Sampling: Water sampling is done to characterize the chemical, thermal, or hydrological properties of a surface or subsurface aqueous system. Other definitions:Wikipedia Reegle Introduction Surface water sampling of hot and cold spring discharges has traditionally

373

Definition: Groundwater Sampling | Open Energy Information  

Open Energy Info (EERE)

Dictionary.png Groundwater Sampling Groundwater sampling is done to characterize the chemical, thermal, or hydrological properties of subsurface aqueous systems. Groundwater...

374

Definition: Surface Gas Sampling | Open Energy Information  

Open Energy Info (EERE)

search Dictionary.png Surface Gas Sampling Gas sampling is done to characterize the chemical, thermal, or hydrological properties of a surface or subsurface hydrothermal system....

375

Water Sampling (Healy, 1970) | Open Energy Information  

Open Energy Info (EERE)

Water Sampling (Healy, 1970) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Water Sampling (Healy, 1970) Exploration Activity Details Location...

376

Water-Gas Sampling | Open Energy Information  

Open Energy Info (EERE)

Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon Water-Gas Sampling (Redirected from Water-Gas Samples) Redirect page Jump to: navigation,...

377

Grid Points (GridSampleSet)  

Science Conference Proceedings (OSTI)

... OOF2: The Manual. Grid Points (GridSampleSet). ... Name. Grid Points (GridSampleSet) Evaluate data on a rectangular grid of points. Synopsis. ...

2013-08-23T23:59:59.000Z

378

Grid Points (StatGridSampleSet)  

Science Conference Proceedings (OSTI)

... OOF2: The Manual. Grid Points (StatGridSampleSet). ... Name. Grid Points (StatGridSampleSet) Evaluate data on a rectangular grid of points. ...

2013-08-23T23:59:59.000Z

379

Water-Gas Sampling | Open Energy Information  

Open Energy Info (EERE)

Water-Gas Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Water-Gas Sampling edit Details Activities (21) Areas (18) Regions (1)...

380

Category:SamplePages | Open Energy Information  

Open Energy Info (EERE)

Category Edit History Facebook icon Twitter icon Category:SamplePages Jump to: navigation, search This category uses the form SampleForm. Note the pluralization. Category names...

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


381

A General Investigation of Optimized Atmospheric Sample Duration  

SciTech Connect

ABSTRACT The International Monitoring System (IMS) consists of up to 80 aerosol and xenon monitoring systems spaced around the world that have collection systems sensitive enough to detect nuclear releases from underground nuclear tests at great distances (CTBT 1996; CTBTO 2011). Although a few of the IMS radionuclide stations are closer together than 1,000 km (such as the stations in Kuwait and Iran), many of them are 2,000 km or more apart. In the absence of a scientific basis for optimizing the duration of atmospheric sampling, historically scientists used a integration times from 24 hours to 14 days for radionuclides (Thomas et al. 1977). This was entirely adequate in the past because the sources of signals were far away and large, meaning that they were smeared over many days by the time they had travelled 10,000 km. The Fukushima event pointed out the unacceptable delay time (72 hours) between the start of sample acquisition and final data being shipped. A scientific basis for selecting a sample duration time is needed. This report considers plume migration of a nondecaying tracer using archived atmospheric data for 2011 in the HYSPLIT (Draxler and Hess 1998; HYSPLIT 2011) transport model. We present two related results: the temporal duration of the majority of the plume as a function of distance and the behavior of the maximum plume concentration as a function of sample collection duration and distance. The modeled plume behavior can then be combined with external information about sampler design to optimize sample durations in a sampling network.

Eslinger, Paul W.; Miley, Harry S.

2012-11-28T23:59:59.000Z

382

Network Coded Transmission of Fountain Codes over Cooperative Relay Networks  

E-Print Network (OSTI)

In this paper, a transmission strategy of fountain codes over cooperative relay networks is proposed. When more than one relay nodes are available, we apply network coding to fountain-coded packets. By doing this, partial information is made available to the destination node about the upcoming message block. It is therefore able to reduce the required number of transmissions over erasure channels, hence increasing the effective throughput. Its application to wireless channels with Rayleigh fading and AWGN noise is also analysed, whereby the role of analogue network coding and optimal weight selection is demonstrated.

Kurniawan, E; Yen, K; Chong, K F E

2010-01-01T23:59:59.000Z

383

Category:Field Sampling | Open Energy Information  

Open Energy Info (EERE)

Category Category Edit History Facebook icon Twitter icon » Category:Field Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Field Sampling page? For detailed information on Field Sampling as exploration techniques, click here. Category:Field Sampling Add.png Add a new Field Sampling Technique Subcategories This category has the following 2 subcategories, out of 2 total. G [×] Gas Sampling‎ 3 pages W [×] Water Sampling‎ 2 pages Pages in category "Field Sampling" The following 4 pages are in this category, out of 4 total. G Gas Sampling R Rock Sampling S Soil Sampling W Water Sampling Retrieved from "http://en.openei.org/w/index.php?title=Category:Field_Sampling&oldid=689818" Category: Field Techniques

384

Efficient methods for sampling spike trains in networks of coupled neurons  

E-Print Network (OSTI)

incorporate side information, in particular noisy fluorescence observations in the context of calcium described above. We develop an approach to incorporate calcium fluorescence imaging ob- servations directly the references above for a number of examples). In the presence of fluorescence observations from a calcium

Lazar, Aurel A.

385

Representativeness-based Sampling Network Design for the State of Alaska  

DOE Data Explorer (OSTI)

This data collection contains the map products described in Hoffman et. al., 2013, journal DOI reference: 10.1007/s10980-013-9902-0

Hoffman, Forrest; Kumar, Jitendra; Mills, Richard; Hargrove, William

386

Representativeness-based Sampling Network Design for the State of Alaska  

Science Conference Proceedings (OSTI)

This data collection contains the map products described in Hoffman et. al., 2013, journal DOI reference: 10.1007/s10980-013-9902-0

Forrest Hoffman; Jitendra Kumar; Richard Mills; William Hargrove

2013-11-26T23:59:59.000Z

387

The APS control system network  

SciTech Connect

The APS accelerator control system is a distributed system consisting of operator interfaces, a network, and computer-controlled interfaces to hardware. This implementation of a control system has come to be called the {open_quotes}Standard Model.{close_quotes} The operator interface is a UNDC-based workstation with an X-windows graphical user interface. The workstation may be located at any point on the facility network and maintain full functionality. The function of the network is to provide a generalized communication path between the host computers, operator workstations, input/output crates, and other hardware that comprise the control system. The crate or input/output controller (IOC) provides direct control and input/output interfaces for each accelerator subsystem. The network is an integral part of all modem control systems and network performance will determine many characteristics of a control system. This paper will describe the overall APS network and examine the APS control system network in detail. Metrics are provided on the performance of the system under various conditions.

Sidorowicz, K.V.; McDowell, W.P.

1995-12-31T23:59:59.000Z

388

Technology Diffusion in Communication Networks  

E-Print Network (OSTI)

In the rich and growing literature on diffusion and cascade effects in social networks, it is assumed that a node's actions are influenced only by its immediate neighbors in the social network. However, there are other contexts in which this highly-local view of influence is not applicable. The diffusion of technologies in communication networks is one important example; here, a node's actions should also be influenced by remote nodes that it can communicate with using the new technology. We propose a new model of technology diffusion inspired by the networking literature on this topic. Given the communication network $G(V,E)$, we assume that node $u$ activates (i.e. deploys the new technology) when it is adjacent to a connected component of active nodes in $G$ of size exceeding node $u$'s threshold $\\theta(u)$. We focus on an algorithmic problem that is well understood in the context of social networks, but thus far has only heuristic solutions in the context of communication networks: determining the smalle...

Goldberg, Sharon

2012-01-01T23:59:59.000Z

389

Aging and functional brain networks  

SciTech Connect

Aging is associated with changes in human brain anatomy and function and cognitive decline. Recent studies suggest the aging decline of major functional connectivity hubs in the 'default-mode' network (DMN). Aging effects on other networks, however, are largely unknown. We hypothesized that aging would be associated with a decline of short- and long-range functional connectivity density (FCD) hubs in the DMN. To test this hypothesis, we evaluated resting-state data sets corresponding to 913 healthy subjects from a public magnetic resonance imaging database using functional connectivity density mapping (FCDM), a voxelwise and data-driven approach, together with parallel computing. Aging was associated with pronounced long-range FCD decreases in DMN and dorsal attention network (DAN) and with increases in somatosensory and subcortical networks. Aging effects in these networks were stronger for long-range than for short-range FCD and were also detected at the level of the main functional hubs. Females had higher short- and long-range FCD in DMN and lower FCD in the somatosensory network than males, but the gender by age interaction effects were not significant for any of the networks or hubs. These findings suggest that long-range connections may be more vulnerable to aging effects than short-range connections and that, in addition to the DMN, the DAN is also sensitive to aging effects, which could underlie the deterioration of attention processes that occurs with aging.

Tomasi D.; Tomasi, D.; Volkow, N.D.

2011-07-11T23:59:59.000Z

390

Electrphoretic Sample Excitation Light Assembly.  

DOE Patents (OSTI)

An automated electrophoretic system is disclosed. The system employs a capillary cartridge having a plurality of capillary tubes. The cartridge has a first array of capillary ends projecting from one side of a plate. The first array of capillary ends are spaced apart in substantially the same manner as the wells of a microtitre tray of standard size. This allows one to simultaneously perform capillary electrophoresis on samples present in each of the wells of the tray. The system includes a stacked, dual carrousel arrangement to eliminate cross-contamination resulting from reuse of the same buffer tray on consecutive executions from electrophoresis. The system also has a gel delivery module containing a gel syringe/a stepper motor or a high pressure chamber with a pump to quickly and uniformly deliver gel through the capillary tubes. The system further includes a multi-wavelength beam generator to generate a laser beam which produces a beam with a wide range of wavelengths. An off-line capillary reconditioner thoroughly cleans a capillary cartridge to enable simultaneous execution of electrophoresis with another capillary cartridge. The streamlined nature of the off-line capillary reconditioner offers the advantage of increased system throughput with a minimal increase in system cost.

Li, Qingbo (State College, PA); Liu, Changsheng (State College, PA)

2002-04-02T23:59:59.000Z

391

Sample storage/disposal study  

SciTech Connect

Radioactive waste from defense operations has accumulated at the Hanford Site`s underground waste tanks since the late 1940`s. Each tank must be analyzed to determine whether it presents any harm to the workers at the Hanford Site, the public or the environment. Analyses of the waste aids in the decision making process in preparation of future tank waste stabilization procedures. Characterization of the 177 waste tanks on the Hanford Site will produce a large amount of archived material. This also brings up concerns as to how the excess waste tank sample material from 325 and 222-S Analytical Laboratories will be handled. Methods to archive and/or dispose of the waste have been implemented into the 222-S and 325 Laboratory procedures. As the amount of waste characterized from laboratory analysis grows, an examination of whether the waste disposal system will be able to compensate for this increase in the amount of waste needs to be examined. Therefore, the need to find the safest, most economically sound method of waste storage/disposal is important.

Valenzuela, B.D.

1994-09-29T23:59:59.000Z

392

Configuring Networks and Devices with Simple Network Management Protocol (SNMP)  

Science Conference Proceedings (OSTI)

This document is written for readers interested in the Internet Standard Management Framework and its protocol, the Simple Network Management Protocol (SNMP). In particular, it offers guidance in the effective use of SNMP for configuration management. ...

M. MacFaden; D. Partain; J. Saperia; W. Tackabury

2003-04-01T23:59:59.000Z

393

Towards A Network-of-Networks Framework for Cyber Security  

Science Conference Proceedings (OSTI)

Networks-of-networks (NoN) is a graph-theoretic model of interdependent networks that have distinct dynamics at each network (layer). By adding special edges to represent relationships between nodes in different layers, NoN provides a unified mechanism to study interdependent systems intertwined in a complex relationship. While NoN based models have been proposed for cyber-physical systems, in this paper we build towards a three-layer NoN model for an enterprise cyber system. Each layer captures a different facet of a cyber system. We then discuss the potential benefits of graph-theoretic analysis enabled from such a model. Our goal is to provide a novel and powerful tool for modeling and analyzing problems in cyber security.

Halappanavar, Mahantesh; Choudhury, Sutanay; Hogan, Emilie A.; Hui, Peter SY; Johnson, John R.; Ray, Indrajit; Holder, Lawrence B.

2013-06-07T23:59:59.000Z

394

Adaptive model predictive process control using neural networks  

DOE Patents (OSTI)

A control system for controlling the output of at least one plant process output parameter is implemented by adaptive model predictive control using a neural network. An improved method and apparatus provides for sampling plant output and control input at a first sampling rate to provide control inputs at the fast rate. The MPC system is, however, provided with a network state vector that is constructed at a second, slower rate so that the input control values used by the MPC system are averaged over a gapped time period. Another improvement is a provision for on-line training that may include difference training, curvature training, and basis center adjustment to maintain the weights and basis centers of the neural in an updated state that can follow changes in the plant operation apart from initial off-line training data.

Buescher, Kevin L. (Los Alamos, NM); Baum, Christopher C. (Mazomanie, WI); Jones, Roger D. (Espanola, NM)

1997-01-01T23:59:59.000Z

395

Adaptive model predictive process control using neural networks  

DOE Patents (OSTI)

A control system for controlling the output of at least one plant process output parameter is implemented by adaptive model predictive control using a neural network. An improved method and apparatus provides for sampling plant output and control input at a first sampling rate to provide control inputs at the fast rate. The MPC system is, however, provided with a network state vector that is constructed at a second, slower rate so that the input control values used by the MPC system are averaged over a gapped time period. Another improvement is a provision for on-line training that may include difference training, curvature training, and basis center adjustment to maintain the weights and basis centers of the neural in an updated state that can follow changes in the plant operation apart from initial off-line training data. 46 figs.

Buescher, K.L.; Baum, C.C.; Jones, R.D.

1997-08-19T23:59:59.000Z

396

Centrality scaling in large networks  

E-Print Network (OSTI)

Betweenness centrality lies at the core of both transport and structural vulnerability properties of complex networks, however, it is computationally costly, and its measurement for networks with millions of nodes is near impossible. By introducing a multiscale decomposition of shortest paths, we show that the contributions to betweenness coming from geodesics not longer than L obey a characteristic scaling vs L, which can be used to predict the distribution of the full centralities. The method is also illustrated on a real-world social network of 5.5*10^6 nodes and 2.7*10^7 links.

Ercsey-Ravasz, Maria

2010-01-01T23:59:59.000Z

397

Privacy engineering for social networks  

E-Print Network (OSTI)

. BONNEAU, J. ANDERSON, R. J. ANDERSON, AND F. STAJANO. Eight friends are enough: social graph approximation via public listings. In SNS 09: Proceedings of the Second ACM EuroSys Workshop on Social Network Systems, pages 1318. ACM, Mar. 2009. doi:10... (SNS) [7] and Prying Data out of a Social Network, a summary of various methods that we used to extract information from the service, published at the 2009 International Con- ference on Advances in Social Networks Analysis and Mining (ASONAM) [8]. I...

Anderson, Jonathan

2013-01-08T23:59:59.000Z

398

Biomass Rapid Analysis Network (BRAN)  

DOE Green Energy (OSTI)

Helping the emerging biotechnology industry develop new tools and methods for real-time analysis of biomass feedstocks, process intermediates and The Biomass Rapid Analysis Network is designed to fast track the development of modern tools and methods for biomass analysis to accelerate the development of the emerging industry. The network will be led by industry and organized and coordinated through the National Renewable Energy Lab. The network will provide training and other activities of interest to BRAN members. BRAN members will share the cost and work of rapid analysis method development, validate the new methods, and work together to develop the training for the future biomass conversion workforce.

Not Available

2003-10-01T23:59:59.000Z

399

Combining Belief Networks and Neural Networks for Scene Segmentation  

Science Conference Proceedings (OSTI)

We are concerned with the problem of image segmentation, in which each pixel is assigned to one of a predefined finite number of labels. In Bayesian image analysis, this requires fusing together local predictions for the class labels with a prior model ... Keywords: tree-structured belief network (TSBN), hierarchical modeling, Markov random field (MRF), neural network, scaled-likelihood method, conditional maximum-likelihood training, Gaussian mixture model, expectation-maximization (EM)

X. Feng; C. K. I. Williams; S. N. Felderhof

2002-04-01T23:59:59.000Z

400

High Capacity Network Link Emulation Using Network Processors  

E-Print Network (OSTI)

Network link emulation constitutes an important part of network emulation, wherein links in the topology are emulated to subject the network tra#c to di#erent bandwidths, latencies, packet loss distributions, and queuing models. Increasingly, experimenters are creating topologies with substantial emulation bandwidths; contributed both by a large number of low-speed links and a small number of high-speed links. It is a significant challenge for a link emulator to meet this requirement in real time. Existing solutions for link emulation use general-purpose PC-class machines; the well-understood hardware and software PC platform make it attractive for quick implementation and easy deployment. A PC architecture is largely optimized for compute bound applications with large amounts of exploitable instruction-level parallelism (ILP) and good memory reference locality. Networking applications, on the other hand, have little ILP and instead exhibit a coarser packet-level parallelism. In this thesis, we propose using network processors for building high capacity link emulators. Network processors are programmable processors that employ a multithreaded, multiprocessor architecture to exploit packet-level parallelism, and have instruction sets and hardware support geared towards e#cient implementation of common networking tasks. To evaluate our proposal, we have designed and implemented a link emulator, LinkEM, on the IXP1200 network processor. We present the design and a mapping of LinkEM's tasks across the multiple microengines and hardware threads of the IXP1200. We also give a detailed evaluation of LinkEM, which includes validating its emulation accuracy, and measuring its emulation throughput and link multiplexing capacity. Our evaluation shows that LinkEM has a factor of be...

Abhijeet A. Joglekar; Abhijeet A. Joglekar; Abhijeet A. Joglekar; John Carter; John Regehr; Date Jay Lepreau; David S. Chapman

2004-01-01T23:59:59.000Z

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


401

Precision Irrigators Network  

E-Print Network (OSTI)

Identifying best management practices (BMPs) promoting greater water use efficiency while maintaining crop yields is essential to the future of Texas cropping systems. Available water for irrigated crops is vital for sustaining crop production throughout the state. However, the availability of this water for irrigation is diminishing through competition by urban development and, in some regions such as the Edwards Aquifer, is falling under state regulation. The awareness and improvement of efficient irrigation and best management practices to conserve water while maintaining crop production will help preserve the aquifer levels and increase water savings to producers. One component of BMPs for conserving water use is the application of decision support systems (DSS) that are used as tools for implementing irrigation BMPs. This DSS guide was developed as a complement to TWDB Report 362, "Water Conservation Best Management Practices Guide," which is a more comprehensive report on water conservation including an "Agricultural Irrigation Water Use Management" BMPs section. The full TWDB Report 362 can be found at: http://www.twdb.state.tx.us/assistance/conservation/consindex.asp. DSS include the Texas High Plains Evapotranspiration Network (TXHPET), the Precision Irrigators Network (PIN) and the Crop Production Management (CroPMan) model. These DSS strive to promote grower awareness of water conservation strategies. Irrigation conservation strategies are proposed to result in savings of approximately 1.4 million acre-feet per year by 2060 (TWDB and TWRI). TXHPET operates 18 meteorological stations located in 15 counties across the Texas North Plains and Texas South Plains. The regional coverage of TXHPET is estimated at 4 million irrigated acres. The network offers insight to evapotranspiration (ET)-based crop water use that producers and agricultural consultants can reference when making decisions on when and how much to irrigate their crops. This information is available to data users via fax or online (http://txhighplainset.tamu.edu) and currently results in approximately 300,000 downloads or faxes annually. The PIN program was formed in 2004 with a goal of saving millions of gallons of water annually by reducing irrigation water use by as much as 20 percent over several years and currently supports several crops (corn, cotton, sorghum, wheat) in seven counties of South Central Texas. Cooperation of the PIN programs consists of area producers, Texas Agricultural Experiment Station researchers, Texas Cooperative Extension personnel, San Antonio Water System, Edwards Aquifer Authority, Texas Water Resources Institute, Texas Water Development Board, Uvalde County Underground Water Conservation District and Wintergarden Water Conservation District. The PIN database will allow producers to gain historical and real-time information for better management of irrigation scheduling. The PIN program estimates that when all irrigators in the Edwards Aquifer region implement limited irrigation scheduling, approximately 50,000 to 60,000 acre-feet of water can be saved per year and made available for purposes other than agriculture. CroPMan is a computer model designed to aid producers and agricultural consultants in optimizing crop management and maximizing production and profit through a production-risk approach. CroPMan will help growers identify limitations to crop yield, assist in making replant decisions and help recognize management practices that reduce the impact of agriculture on soil erosion and water quality. CroPMan is a Windows-based application program that can be downloaded from the CroPMan Web site (http://cropman.brc.tamus.edu).

Bynum, J.; Cothren, T.; Marek, T.; Piccinni, G.

2007-08-01T23:59:59.000Z

402

Multi-class blue noise sampling  

Science Conference Proceedings (OSTI)

Sampling is a core process for a variety of graphics applications. Among existing sampling methods, blue noise sampling remains popular thanks to its spatial uniformity and absence of aliasing artifacts. However, research so far has been mainly focused ... Keywords: blue noise, dart throwing, multi-class, poisson hard/soft disk, relaxation, sampling

Li-Yi Wei

2010-07-01T23:59:59.000Z

403

Networks in the modern economy: Mexican migrants in the u.s. labor market  

E-Print Network (OSTI)

This paper attempts to identify job networks among Mexican migrants in the U. S. labor market. The empirical analysis uses data on migration patterns and labor market outcomes, based on a sample of individuals belonging to multiple origin-communities in Mexico, over a long period of time. Each communitys network is measured by the proportion of the sampled individuals who are located at the destination (the United States) in any year. We verify that the same individual is more likely to be employed and to hold a higher paying nonagricultural job when his network is exogenously larger, by including individual ?xed effects in the employment and occupation regressions and by using rainfall in the origin-community as an instrument for the size of the network at the destination. I.

Kaivan Munshi

2003-01-01T23:59:59.000Z

404

Soil Gas Sampling | Open Energy Information  

Open Energy Info (EERE)

Soil Gas Sampling Soil Gas Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Soil Gas Sampling Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Gas Sampling Information Provided by Technique Lithology: Stratigraphic/Structural: Identify concealed faults that act as conduits for hydrothermal fluids. Hydrological: Identify hydrothermal gases of magmatic origin. Thermal: Differentiate between amagmatic or magmatic sources heat. Dictionary.png Soil Gas Sampling: Soil gas sampling is sometimes used in exploration for blind geothermal resources to detect anomalously high concentrations of hydrothermal gases

405

Gas Flux Sampling | Open Energy Information  

Open Energy Info (EERE)

Gas Flux Sampling Gas Flux Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Gas Flux Sampling Details Activities (26) Areas (20) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Gas Sampling Information Provided by Technique Lithology: Stratigraphic/Structural: High flux can be indicative of conduits for fluid flow. Hydrological: Thermal: Anomalous flux is associated with active hydrothermal activity. Dictionary.png Gas Flux Sampling: Gas flux sampling measures the flow of volatile gas emissions from a specific location and compares it to average background emissions. Anomalously high gas flux can be an indication of hydrothermal activity.

406

Surface Gas Sampling | Open Energy Information  

Open Energy Info (EERE)

Surface Gas Sampling Surface Gas Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Surface Gas Sampling Details Activities (12) Areas (10) Regions (1) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Gas Sampling Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Gas composition and source of fluids. Thermal: Distinguish magmatic/mantle heat inputs. Can be used to estimate reservoir fluid temperatures. Dictionary.png Surface Gas Sampling: Gas sampling is done to characterize the chemical, thermal, or hydrological properties of a surface or subsurface hydrothermal system. Other definitions:Wikipedia Reegle Introduction

407

Discursive Deployments: Mobilizing Support for Municipal and Community Wireless Networks in the U.S.  

Science Conference Proceedings (OSTI)

This paper examines Municipal Wireless (MW) deployments in the United States. In particular, the interest is in understanding how discourse has worked to mobilize widespread support for MW networks. We explore how local governments discursively deploy the language of social movements to create a shared understanding of the networking needs of communities. Through the process of"framing" local governments assign meaning to the MW networks in ways intended to mobilize support anddemobilize opposition. The mobilizing potential of a frame varies and is dependent on its centrality and cultural resonance. We examine the framing efforts of MW networks by using a sample of Request for Proposals for community wireless networks, semi-structured interviews and local media sources. Prominent values that are central to a majority of the projects and others that are culturally specific are identified and analyzed for their mobilizing potency.

Alvarez, Rosio; Rodriguez, Juana Maria

2008-08-16T23:59:59.000Z

408

Compatibility issues between services supporting networked appliances  

E-Print Network (OSTI)

In the near future general household appliances such as televisions, refrigerators, alarm clocks, stoves, and even lights, will be supplemented with a network interface connecting the appliance to the Internet. Homes are being equipped with such networked appliances to allow a more convenient way of living. Such extensive automatic control of appliances leads to the concept of the smart home. Behind such automation, there is a lot of software controlling the appliances. This software, which is often referred to as services, applications, or bundles is supplied by a range of service provider businesses. Hence in a single home, appliances may be controlled by a multitude of services, which are offered by a wide variety of different providers. Moreover, some services may require the use of other services. Importantly, these businesses are completely independent and may not even be aware of one another or their products. Hence appliances may be controlled by more than one service, and indeed these controlling services are often trying to achieve different goals. This causes compatibility issues, which need to be resolved for networked appliances to be successful in the mass market. This problem is well known in telephony and historically is referred to as the feature interaction problem. This paper discusses the issue of compatibility between services in a home environment. Reasons why and how services interact are discussed, and a taxonomy of interactions is presented. Finally, an approach is presented which prevents interactions. The approach presented uses accepted and known device and protocol interworking techniques. Throughout the paper, a number of example scenarios are used to illustrate the issues. However, the emphasis of the paper is not only to present sample services for controlling home appliances or identifying specific interactions between such services, but on finding a general solution to the feature interaction problem that can automatically detect interactions between services in the home.

Mario Kolberg; Evan H. Magill; Michael Wilson

2003-01-01T23:59:59.000Z

409

Sample introduction apparatus for a flow cytometer  

DOE Patents (OSTI)

A sample introduction system for a flow cytometer allows easy change of sample containers such as test tubes and facilitates use in high pressure environments. The sample container includes a cap having a pressure supply chamber and a sample container attachment cavity. A sample container may be automatically positioned into the attachment cavity so as to sealably engage the end of the sample container as its outer surface. This positioning may be accomplished through some sample introduction mechanism. To facilitate cleaning HPLC tubing and fittings may be used in a manner which facilitates removable of the entire tubing from both the nozzle container and other sample container cap to permit its replacement to avoid contamination. The sample container support may include horizontal stops which loosely limit the movement of the sample container and thus avoid further stresses upon it.

Van den Engh, Ger (Seattle, WA)

1998-01-01T23:59:59.000Z

410

Sample introduction system for a flow cytometer  

SciTech Connect

A sample introduction system for a flow cytometer allows easy change of sample containers such as test tubes and facilitates use in high pressure environments. The sample container includes a cap having a pressure supply chamber and a sample container attachment cavity. A sample container may be automatically positioned into the attachment cavity so as to sealably engage the end of the sample container as its outer surface. This positioning may be accomplished through some sample introduction mechanism. To facilitate cleaning, HPLC tubing and fittings may be used in a manner which facilitates removing of the entire tubing from both the nozzle container and other sample container cap to permit its replacement to avoid contamination. The sample container support may include horizontal stops which loosely limit the movement of the sample container and thus avoid further stresses upon it.

Van den Engh, Ger (Seattle, WA)

1997-01-01T23:59:59.000Z

411

Sample introduction system for a flow cytometer  

DOE Patents (OSTI)

A sample introduction system for a flow cytometer allows easy change of sample containers such as test tubes and facilitates use in high pressure environments. The sample container includes a cap having a pressure supply chamber and a sample container attachment cavity. A sample container may be automatically positioned into the attachment cavity so as to sealably engage the end of the sample container as its outer surface. This positioning may be accomplished through some sample introduction mechanism. To facilitate cleaning, HPLC tubing and fittings may be used in a manner which facilitates removing of the entire tubing from both the nozzle container and other sample container cap to permit its replacement to avoid contamination. The sample container support may include horizontal stops which loosely limit the movement of the sample container and thus avoid further stresses upon it. 3 figs.

Engh, G. van den

1997-02-11T23:59:59.000Z

412

Sample introduction apparatus for a flow cytometer  

DOE Patents (OSTI)

A sample introduction system for a flow cytometer allows easy change of sample containers such as test tubes and facilitates use in high pressure environments. The sample container includes a cap having a pressure supply chamber and a sample container attachment cavity. A sample container may be automatically positioned into the attachment cavity so as to sealably engage the end of the sample container as its outer surface. This positioning may be accomplished through some sample introduction mechanism. To facilitate cleaning HPLC tubing and fittings may be used in a manner which facilitates removable of the entire tubing from both the nozzle container and other sample container cap to permit its replacement to avoid contamination. The sample container support may include horizontal stops which loosely limit the movement of the sample container and thus avoid further stresses upon it. 3 figs.

Van den Engh, G.

1998-03-10T23:59:59.000Z

413

NIST_1A 1024 sample_count -i 57202424 sample_n_bytes -i ...  

Science Conference Proceedings (OSTI)

NIST_1A 1024 sample_count -i 57202424 sample_n_bytes -i 2 channel_count -i 1 sample_byte_format -s2 01 sample_rate -i 16000 ...

2004-03-08T23:59:59.000Z

414

Security of internet-connected computer networks  

Science Conference Proceedings (OSTI)

The security of computer networks connected to the internet is an important, vital and hotly contested real-world issue. Once the computer networks get connected to the internet, the number of attacks, their strength and intensity grow exponentially. ... Keywords: attack detection, attacks, computer networks, digital signature, incidents, internet, network security, security breaches, security policy

I. Tutanescu; E. Sofron; M. Ali

2010-02-01T23:59:59.000Z

415

Academic and research network of Slovenia  

Science Conference Proceedings (OSTI)

The Academic and Research Network of Slovenia (ARNES) was founded by the Government of Slovenia in 1992 as an agency to develop, operate and manage a computer network for education and research. This article describes the development of the network, ... Keywords: Internet, Research and educational networks

Avgust Jauk; Marko Bona?; Igor Ozimek; Gorazd Kandus

2003-03-01T23:59:59.000Z

416

Manifold learning visualization of network traffic data  

Science Conference Proceedings (OSTI)

When traffic anomalies or intrusion attempts occur on the network, we expect that the distribution of network traffic will change. Monitoring the network for changes over time, across space (at various routers in the network), over source and destination ... Keywords: data mining, internet traffic anomaly detection & forensics

Neal Patwari; Alfred O. Hero, III; Adam Pacholski

2005-08-01T23:59:59.000Z

417

TMS 2013: Annual Meeting & Exhibition - Networking Events  

Science Conference Proceedings (OSTI)

Workshops & Short Courses Spotlight Sessions Special Lectures Networking Events Awards Banquet For Young Professionals For Volunteers.

418

QOMB: A wireless network emulation testbed  

Science Conference Proceedings (OSTI)

In this paper we present QOMB, a testbed we designed and implemented for the evaluation of wireless network systems, protocols and applications. The testbed uses the wireless network emulation set of tools QOMET so as to reproduce in a wired network, ... Keywords: emulation, real-time, testbed, wireless networks

Razvan Beuran; Lan Tien Nguyen; Toshiyuki Miyachi; Junya Nakata; Ken-ichi Chinen; Yasuo Tan; Yoichi Shinoda

2009-11-01T23:59:59.000Z

419

Wireless sensor networks for habitat monitoring  

Science Conference Proceedings (OSTI)

We provide an in-depth study of applying wireless sensor networks to real-world habitat monitoring. A set of system design requirements are developed that cover the hardware design of the nodes, the design of the sensor network, and the capabilities ... Keywords: environmental monitoring, habitat monitoring, low power systems, sensor network architecture, wireless sensor networks

Alan Mainwaring; David Culler; Joseph Polastre; Robert Szewczyk; John Anderson

2002-09-01T23:59:59.000Z

420

Higher layer issues in cognitive radio network  

Science Conference Proceedings (OSTI)

Cognitive radio networks are smart networks that automatically sense the channel and adjust the network parameters accordingly. Cognitive radio is an emerging technology that enables the dynamic deployment of highly adaptive radios that are built upon ... Keywords: cognitive radio network (CRN), issues, routing issues, security issues, software defined radio

Saed Alrabaee; Anjali Agarwal; Nishith Goel; Marzia Zaman; Mahmoud Khasawneh

2012-08-01T23:59:59.000Z

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


421

Crowdsourcing service-level network event monitoring  

Science Conference Proceedings (OSTI)

The user experience for networked applications is becoming a key benchmark for customers and network providers. Perceived user experience is largely determined by the frequency, duration and severity of network events that impact a service. While today's ... Keywords: P2P, anomaly detection, crowdsourcing, service-level network events

David R. Choffnes; Fabin E. Bustamante; Zihui Ge

2010-08-01T23:59:59.000Z

422

Control network programs and their execution  

Science Conference Proceedings (OSTI)

Control Network Programming (CNP) as a new programming paradigm has been presented elsewhere, and the CNP approach has been illustrated through solving representative typical applications, many of which belong to the AI area. This report aims at more ... Keywords: AI programming, CNP, Spider, control network programming, control networks, non-procedural programming, nondeterministic programming, programming languages, programming paradigms, recursive networks

Kostadin Kratchanov; Emilia Golemanova; Tzanko Golemanov

2009-02-01T23:59:59.000Z

423

A Hybrid Network Emergency Communication Model  

Science Conference Proceedings (OSTI)

To communicate within disaster scenarios, different devices/systems need to cooperate with specific protocols. The key communication protocol needs to provide interoperability among these systems and provide the solution for emergency services. The paper ... Keywords: Ad Hoc Network, Hybrid Network Emergency Communication Protocol HNEC, Inter-Domain Messaging IDM, Network Disaster Recovery, Routing Protocols, Sensor Network

Abdussalam Nuri Baryun, Khalid Al Begain, David Villa

2013-04-01T23:59:59.000Z

424

A survey on wireless body area networks  

Science Conference Proceedings (OSTI)

The increasing use of wireless networks and the constant miniaturization of electrical devices has empowered the development of Wireless Body Area Networks (WBANs). In these networks various sensors are attached on clothing or on the body or even implanted ... Keywords: MAC, Routing, Wireless body area networks

Benot Latr; Bart Braem; Ingrid Moerman; Chris Blondia; Piet Demeester

2011-01-01T23:59:59.000Z

425

Zonal Rumor Routing for Wireless Sensor Networks  

Science Conference Proceedings (OSTI)

Routing algorithms for wireless sensor networks are constrained by power, memory and computational resources. Rumor Routing algorithm for sensor networks spreads theinformation of an event to other nodes in the network, thus enabling queries to discover ... Keywords: Sensor Network, Routing, Wireless, Rumor Routing

Tarun Banka; Gagan Tandon; Anura P. Jayasumana

2005-04-01T23:59:59.000Z

426

An autonomic routing framework for sensor networks  

Science Conference Proceedings (OSTI)

Current routing services for sensor networks are often designed for specific applications and network conditions, thus have difficulty in adapting to application and network dynamics. This paper proposes an autonomic framework to promote the adaptivity ... Keywords: Autonomic routing, Feature functions, Monitoring policies, Sensor networks

Yu He; Cauligi S. Raghavendra; Steven Berson; Robert Braden

2006-04-01T23:59:59.000Z

427

Energy Consumption Issues on Mobile Network Systems  

Science Conference Proceedings (OSTI)

This paper describes energy consumption demographic data in operating real mobile networks. We examine published data from NTT DoCoMo, which is the largest mobile telecommunication operator in Japan and operating nation-wide 3G networks, and identify ... Keywords: Moble Network, Power Consumption, Battery, CO2, Green Network

Minoru Etoh; Tomoyuki Ohya; Yuji Nakayama

2008-07-01T23:59:59.000Z

428

Topological properties of hierarchical cubic networks  

Science Conference Proceedings (OSTI)

Keywords: Hamiltonian, broadcasting, emulation, fault tolerance, hypercube, interconnection network, shortest-path routing

Wei-Kuo Chiang; Rong-Jaye Chen

1996-11-01T23:59:59.000Z

429

Integrating Correlated Bayesian Networks Using Maximum Entropy  

Science Conference Proceedings (OSTI)

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.

Jarman, Kenneth D.; Whitney, Paul D.

2011-08-30T23:59:59.000Z

430

Quantum Feedback Networks John Gough,Wales  

E-Print Network (OSTI)

Quantum Feedback Networks John Gough,Wales Matt James,ANU #12;· Quantum Feedback · Quantum Networks - I · Classical Electrical Networks · Quantum Networks - II · Examples in Quantum Control Outline #12;· J. Gough and M.R. James, The Series Product and Its Application to Quantum Feedforward and Feedback

James, Matthew

431

Efficient XML usage within wireless sensor networks  

Science Conference Proceedings (OSTI)

Integrating wireless sensor networks in heterogeneous networks is a complex task. A reason is the absence of a standardized data exchange format that is supported in all participating sub networks. XML has evolved to the de facto standard data exchange ... Keywords: XML, database management, programming language, wireless sensor networks

Nils Hoeller; Christoph Reinke; Jana Neumann; Sven Groppe; Daniel Boeckmann; Volker Linnemann

2008-11-01T23:59:59.000Z

432

Wireless sensor network operating systems: a survey  

Science Conference Proceedings (OSTI)

The design of operating system for Wireless Sensor Network (WSN) deviates from the traditional operating system design due to their specific characteristics like constrained resources, high dynamics and inaccessible deployment environments. We ... Keywords: TinyOS, WSN operating systems, WSNs, ad-hoc networks, applications, characteristics, classification framework, design, embedded systems, reprogramming, survey, virtual machines, wireless networks, wireless sensor networks

Adi Mallikarjuna V. Reddy; A.V.U. Phani Kumar; D. Janakiram; G. Ashok Kumar

2009-08-01T23:59:59.000Z

433

Enerlogics Networks | Open Energy Information  

Open Energy Info (EERE)

Enerlogics Networks Enerlogics Networks Jump to: navigation, search Logo: Enerlogics Networks Name Enerlogics Networks Place Pittsburgh, Pennsylvania Product buidling automation control systems to utility software solutions to telecommunication systems development and deployment Phone number 1.866.381.2761 Website http://www.enerlogics.com Coordinates 40.4406248°, -79.9958864° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.4406248,"lon":-79.9958864,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

434

Trilliant Networks | Open Energy Information  

Open Energy Info (EERE)

Networks Networks Jump to: navigation, search Logo: Trilliant Networks Name Trilliant Networks Address 1100 Island Drive Place Redwood City, California Zip 94065 Sector Efficiency Product Provides utilities with metering communication platform Website http://www.trilliantinc.com/ Coordinates 37.536317°, -122.256385° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.536317,"lon":-122.256385,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

435

Simulating networks of wireless sensors  

Science Conference Proceedings (OSTI)

Recent advances in low-power embedded processors, radios, and micro-mechanical systems (MEMs) have made possible the development of networks of wirelessly interconnected sensors. With their focus on applications requiring tight coupling with the physical ...

Sung Park; Andreas Savvides; Mani B. Srivastava

2001-12-01T23:59:59.000Z

436

ENAVis: enterprise network activities visualization  

Science Conference Proceedings (OSTI)

With the prevalence of multi-user environments, it has become an increasingly challenging task to precisely identify who is doing what on an enterprise network. Current management systems that rely on inferring user identity and application usage via ...

Qi Liao; Andrew Blaich; Aaron Striegel; Douglas Thain

2008-11-01T23:59:59.000Z

437

Green Power Network: Featured Reports  

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

any questions to Karlynn Cory. Printable Version Skip footer navigation to end of page. Green Power Network Home | EERE Home | U.S. Department of Energy Webmaster | Web Site...

438

Cooperative routing in wireless networks  

E-Print Network (OSTI)

In this thesis, we study the problem of energy efficiency and reliability in wireless ad-hoc networks. First, we introduce the idea of wireless cooperation advantage. We formulate the problem of finding the minimum energy ...

Khandani, Amir E. (Amir Ehsan), 1979-

2004-01-01T23:59:59.000Z

439

Network coding for function computation  

E-Print Network (OSTI)

K. Zeger. Unachievability of Network Cod- ing Capacity. IEEEto target function f is C cod (N , f ) = sup k : ? (k, n)target function f , then C cod (N , f ) ? min-cut(N , f ).

Appuswamy, Rathinakumar

2011-01-01T23:59:59.000Z

440

Ozone Modeling Using Neural Networks  

Science Conference Proceedings (OSTI)

Ozone models for the city of Tulsa were developed using neural network modeling techniques. The neural models were developed using meteorological data from the Oklahoma Mesonet and ozone, nitric oxide, and nitrogen dioxide (NO2) data from ...

Ramesh Narasimhan; Joleen Keller; Ganesh Subramaniam; Eric Raasch; Brandon Croley; Kathleen Duncan; William T. Potter

2000-03-01T23:59:59.000Z

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


441

Ideally Glassy Hydrogen Bonded Networks  

E-Print Network (OSTI)

The axiomatic theory of ideally glassy networks, which has proved effective in describing phase diagrams and properties of chalcogenide and oxide glasses and their foreign interfaces, is broadened here to include intermolecular interactions in hydrogen-bonded polyalcohols such as glycerol, monosaccharides (glucose), and the optimal bioprotective hydrogen-bonded disaccharide networks formed from trehalose. The methods of Lagrangian mechanics and Maxwellian scaffolds are useful at the molecular level when bonding hierarchies are characterized by constraint counting similar to the chemical methods used by Huckel and Pauling. Whereas Newtonian molecular dynamical methods are useful for simulating large-scale interactions for times of order 10 ps, constraint counting describes network properties on glassy (almost equilibrated) time scales, which may be of cosmological order for oxide glasses, or years for trehalose. The ideally glassy network of trehalose may consist of extensible tandem sandwich arrays.

J. C. Phillips

2005-08-05T23:59:59.000Z

442

Connectivity problem in wireless networks  

Science Conference Proceedings (OSTI)

We study the complexity of the following connectivity problem in wireless networks: for a given placement of n nodes in the plane, the goal is to compute a channel and power assignment that forms strongly connected communication structure spanning ...

Dariusz R. Kowalski; Mariusz A. Rokicki

2010-09-01T23:59:59.000Z

443

Argumentation in bayesian belief networks  

Science Conference Proceedings (OSTI)

This paper establishes an explicit connection between formal argumentation and Bayesian inference by introducing a notion of argument and a notion of defeat among arguments in Bayesian networks. First, the two approaches are compared and it is argued ...

Gerard A. W. Vreeswijk

2004-07-01T23:59:59.000Z

444

Survivable paths in multilayer networks  

E-Print Network (OSTI)

We consider the problem of protection in multilayer networks. In single-layer net- works, a pair of disjoint paths can be used to provide protection for a source-destination pair. However, this approach cannot be directly ...

Parandehgheibi, Marzieh

2012-01-01T23:59:59.000Z

445

Broadband accelerator control network  

SciTech Connect

A broadband data communications network has been implemented at BNL for control of the Alternating Gradient Synchrotron (AG) proton accelerator, using commercial CATV hardware, dual coaxial cables as the communications medium, and spanning 2.0 km. A 4 MHz bandwidth Digital Control channel using CSMA-CA protocol is provided for digital data transmission, with 8 access nodes available over the length of the RELWAY. Each node consists of an rf modem and a microprocessor-based store-and-forward message handler which interfaces the RELWAY to a branch line implemented in GPIB. A gateway to the RELWAY control channel for the (preexisting) AGS Computerized Accelerator Operating system has been constructed using an LSI-11/23 microprocessor as a device in a GPIB branch line. A multilayer communications protocol has been defined for the Digital Control Channel, based on the ISO Open Systems Interconnect layered model, and a RELWAY Device Language defined as the required universal language for device control on this channel.

Skelly, J.; Clifford, T.; Frankel, R.

1983-01-01T23:59:59.000Z

446

ENHANCEMENT OF ENVIRONMENTAL SAMPLING THROUGH AN IMPROVED AIR MONITORING TECHNIQUE  

SciTech Connect

Environmental sampling (ES) is a key component of International Atomic Energy Agency (IAEA) safeguarding approaches throughout the world. Performance of ES (e.g. air, water, vegetation, sediments, soil and biota) supports the IAEAs mission of drawing conclusions concerning the absence of undeclared nuclear material or nuclear activities in a State and has been available since the introduction of safeguards strengthening measures approved by the IAEA Board of Governors (1992-1997). A recent step-change improvement in the gathering and analysis of air samples at uranium/plutonium bulk handling facilities is an important addition to the international nuclear safeguards inspector's toolkit. Utilizing commonly used equipment throughout the IAEA network of analytical laboratories for particle analysis, researchers are developing the next generation of ES equipment for air grab and constant samples. Isotopic analysis of collected particles from an Aerosol Contaminant Extractor (ACE) silicon substrate has been performed with excellent results in determining attribute and isotopic composition of chemical elements present in an actual test-bed sample. The new collection equipment will allow IAEA nuclear safeguards inspectors to develop enhanced safeguarding approaches for complicated facilities. This paper will explore the use of air monitoring to establish a baseline environmental signature of a particular facility that could be used for comparison of consistencies in declared operations. The implementation of air monitoring will be contrasted against the use of smear ES when used during unannounced inspections, design information verification, limited frequency unannounced access, and complementary access visits at bulk handling facilities. Technical aspects of the air monitoring device and the analysis of its environmental samples will demonstrate the essential parameters required for successful application of the system.

Hanks, D.

2010-06-07T23:59:59.000Z

447

Urban Network Practices: Ameren Missouri  

Science Conference Proceedings (OSTI)

This report describes the findings of an underground distribution practices immersion conducted by the Electric Power Research Institute (EPRI) with Ameren Missouri. This immersion was conducted as part of a multiyear effort by EPRI to identify noteworthy practices in managing urban network systems. More specifically, this report profiles the practices (people, processes, and technology) in place at Ameren Missouri, a St. Louis, Missouri, based utility serving customers through secondary network ...

2012-08-20T23:59:59.000Z

448

Energy efficient networking via dynamic relay node selection in wireless networks  

Science Conference Proceedings (OSTI)

Mobile wireless ad hoc networks need to maximize their network lifetime (defined as the time until the first node runs out of energy). In the broadcast network lifetime problem, all nodes are sending broadcast traffic, and one asks for an assignment ... Keywords: Ad hoc networks, Average case analysis, Network lifetime, Random graphs

Maurits De Graaf

2013-05-01T23:59:59.000Z

449

Computer Networking Group | Stanford Synchrotron Radiation Lightsource  

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

Networking Group Networking Group Do you need help? For assistance please submit a CNG Help Request ticket. CNG Logo Chris Ramirez SSRL Computer and Networking Group Manager (650) 926-2901 | email Jerry Camuso SSRL Computer and Networking (650) 926-2994 | email Networking Support The Networking group provides connectivity and communications services for SSRL. The services provided by the Networking Support Group include: Local Area Network support for cable and wireless connectivity. Installation and maintenance of network printers and queues. Telephony installations and support. Printing Support The Networking group provides printer maintenance and support for SSRL Beamline Printers and plotters. The following models are supported: HP - Designjet large format plotters HP - Color and B/W Laserjet, Inkjet, Deskjet, Officejet

450

Definition: Rock Sampling | Open Energy Information  

Open Energy Info (EERE)

Sampling Sampling Jump to: navigation, search Dictionary.png Rock Sampling Systematic rock sampling can be used to characterize a geothermal reservoir. The physical and chemical properties of rock samples provide important information for determining whether a power generation or heat utilization facility can be developed. Some general rock properties can be measured by visual inspection, but detailed properties require laboratory techniques. View on Wikipedia Wikipedia Definition A core sample is a cylindrical section of (usually) a naturally occurring substance. Most core samples are obtained by drilling with special drills into the substance, for example sediment or rock, with a hollow steel tube called a core drill. The hole made for the core sample is called the "core hole". A variety of core samplers exist to sample

451

Method and apparatus for data sampling  

DOE Patents (OSTI)

A method and apparatus for sampling radiation detector outputs and determining event data from the collected samples is described. The method uses high speed sampling of the detector output, the conversion of the samples to digital values, and the discrimination of the digital values so that digital values representing detected events are determined. The high speed sampling and digital conversion is performed by an A/D sampler that samples the detector output at a rate high enough to produce numerous digital samples for each detected event. The digital discrimination identifies those digital samples that are not representative of detected events. The sampling and discrimination also provides for temporary or permanent storage, either serially or in parallel, to a digital storage medium. 6 figures.

Odell, D.M.C.

1994-04-19T23:59:59.000Z

452

Fluid sampling system for a nuclear reactor  

DOE Patents (OSTI)

A system of extracting fluid samples, either liquid or gas, from the interior of a nuclear reactor containment utilizes a jet pump. To extract the sample fluid, a nonradioactive motive fluid is forced through the inlet and discharge ports of a jet pump located outside the containment, creating a suction that draws the sample fluid from the containment through a sample conduit connected to the pump suction port. The mixture of motive fluid and sample fluid is discharged through a return conduit to the interior of the containment. The jet pump and means for removing a portion of the sample fluid from the sample conduit can be located in a shielded sample grab station located next to the containment. A non-nuclear grade active pump can be located outside the grab sampling station and the containment to pump the nonradioactive motive fluid through the jet pump. 1 fig.

Lau, L.K.; Alper, N.I.

1994-11-22T23:59:59.000Z

453

Evidential structures and metrics for network forensics  

Science Conference Proceedings (OSTI)

Evaluation of forensics evidence is an essential step in proving the malicious intents of an attacker or adversary and the severity of the damages caused to any network. This paper takes a step forward showing how security metrics can be used to sustain ... Keywords: CVSS, NFR, common vulnerability scoring system, evidential database, evidential structure, network attacks, network evidence, network forensic readiness, network forensics, security metrics

Ahmad R. Amran; Raphael C-W. Phan; David J. Parish; John N. Whitley

2010-12-01T23:59:59.000Z

454

ALARA ASSESSMENT OF SETTLER SLUDGE SAMPLING METHODS  

SciTech Connect

The purpose of this assessment is to compare underwater and above water settler sludge sampling methods to determine if the added cost for underwater sampling for the sole purpose of worker dose reductions is justified. Initial planning for sludge sampling included container, settler and knock-out-pot (KOP) sampling. Due to the significantly higher dose consequence of KOP sludge, a decision was made to sample KOP underwater to achieve worker dose reductions. Additionally, initial plans were to utilize the underwater sampling apparatus for settler sludge. Since there are no longer plans to sample KOP sludge, the decision for underwater sampling for settler sludge needs to be revisited. The present sampling plan calls for spending an estimated $2,500,000 to design and construct a new underwater sampling system (per A21 C-PL-001 RevOE). This evaluation will compare and contrast the present method of above water sampling to the underwater method that is planned by the Sludge Treatment Project (STP) and determine if settler samples can be taken using the existing sampling cart (with potentially minor modifications) while maintaining doses to workers As Low As Reasonably Achievable (ALARA) and eliminate the need for costly redesigns, testing and personnel retraining.

NELSEN LA

2009-01-30T23:59:59.000Z

455

Proactive mobile wireless networks : an infrastructureless wireless network architecture for delay-sensitive applications  

E-Print Network (OSTI)

Infrastructureless wireless networks are an important class of wireless networks that is best suited for scenarios where there is temporary and localized telecommunication demand. Such networks consist of wireless devices ...

Dai, Lillian Lei, 1978-

2008-01-01T23:59:59.000Z

456

Converging Redundant Sensor Network Information for Improved Building Control  

Science Conference Proceedings (OSTI)

This project is investigating the development and application of sensor networks to enhance building energy management and security. Commercial, industrial and residential buildings often incorporate systems used to determine occupancy, but current sensor technology and control algorithms limit the effectiveness of these systems. For example, most of these systems rely on single monitoring points to detect occupancy, when more than one monitoring point would improve system performance. Phase I of the project focused on instrumentation and data collection. In Phase I, a new occupancy detection system was developed, commissioned and installed in a sample of private offices and open-plan office workstations. Data acquisition systems were developed and deployed to collect data on space occupancy profiles. In phase II of the project, described in this report, we demonstrate that a network of several sensors provides a more accurate measure of occupancy than is possible using systems based on single monitoring points. We also establish that analysis algorithms can be applied to the sensor network data stream to improve the accuracy of system performance in energy management and security applications, and show that it may be possible to use sensor network pulse rate to distinguish the number of occupants in a space. Finally, in this phase of the project we also developed a prototype web-based display that portrays the current status of each detector in a sensor network monitoring building occupancy. This basic capability will be extended in the future by applying an algorithm-based inference to the sensor network data stream, so that the web page displays the likelihood that each monitored office or area is occupied, as a supplement to the actual status of each sensor.

Dale K. Tiller; Gregor P. Henze

2005-12-01T23:59:59.000Z

457

Definition: Field Sampling | Open Energy Information  

Open Energy Info (EERE)

Field Sampling Field Sampling Jump to: navigation, search Dictionary.png Field Sampling Systematic field sampling is critical for reliable characterize a geothermal resource. Some of the physical and chemical properties of rock samples can be estimated by visual inspection, but accurate determination of these properties requires detailed laboratory analysis. Surface or subsurface fluid sampling is also routinely performed to characterize the chemical, thermal, or hydrological properties of a hydrothermal system. Combinations of these sampling techniques have traditionally been used to obtain important information used to determine whether or not a viable power generation or heat utilization facility can be developed at a prospect. Soil sampling is a less commonly used method for exploration of

458

Climate Monitoring from Space: Asynoptic Sampling Considerations  

Science Conference Proceedings (OSTI)

Monitoring climate variability from space is considered from the standpoint of satellite sampling. Asynoptic sampling leads to well-defined limits in spatial and temporal resolution which are violated by behavior involving sufficiently small ...

Murry L. Salby

1989-09-01T23:59:59.000Z

459

Metropolis photon sampling with optional user guidance  

Science Conference Proceedings (OSTI)

We present Metropolis Photon Sampling (MPS), a visual importance-driven algorithm for populating photon maps. Photon Mapping and other particle tracing algorithms fail if the photons are poorly distributed. Our approach samples light transport paths ...

Shaohua Fan; Stephen Chenney; Yu-chi Lai

2005-06-01T23:59:59.000Z

460

Principles for Sampling Airborne Radioactivity from Stacks  

SciTech Connect

This book chapter describes the special processes involved in sampling the airborne effluents from nuclear faciities. The title of the book is Radioactive Air Sampling Methods. The abstract for this chapter was cleared as PNNL-SA-45941.

Glissmeyer, John A.

2010-10-18T23:59:59.000Z

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


461

Sample Returns Missions in the Coming Decade  

Science Conference Proceedings (OSTI)

In the coming decade, several missions will attempt to return samples to Earth from varying parts of the solar system. These samples will provide invaluable insight into the conditions present during the early formation of the solar system, and possibly ...

Desai Prasun N.; Mitcheltree Robert A.; Cheatwood F. McNeil

2000-10-01T23:59:59.000Z

462

Tenant data request: Sample letter | ENERGY STAR  

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

government resources Tenant data request: Sample letter Use this sample letter to request energy data from your tenants. This is helpful for instances where you want whole-building...

463

Handover strategy of smart mobile terminals among heterogeneous wireless networks  

Science Conference Proceedings (OSTI)

Due to the variety of wireless networks, the handover among heterogeneous wireless networks has become a research hotspot in recent years. More attention have been paid to the radio access network and the core network than the terminal side. In the future ... Keywords: heterogeneous wireless network, network handover, network handover design, smart mobile terminal

Wei Lin; Weiqiang Wu; Qinyu Zhang

2008-07-01T23:59:59.000Z

464

Incentive Pricing in Multi-Class Communication Networks  

Science Conference Proceedings (OSTI)

We consider a communication network that offers multi-class services to multiple types of traffic. Users choose service classes so as to optimize their own performance. The network associates with each traffic type a nominal service class. Optimal prices ... Keywords: Network pricing, multi-class networks, network control, network design and management, game theory, broadband networking

Ariel Orda; Nahum Shimkin

1997-04-01T23:59:59.000Z

465

Sample holder for x-ray diffractometry  

DOE Patents (OSTI)

A sample holder for use with x-ray diffractometers with the capability to rotate the sample, as well as to adjust the position of the sample in the x, y, and z directions. Adjustment in the x direction is accomplished through loosening set screws, moving a platform, and retightening the set screws. Motion translators are used for adjustment in the y and z directions. An electric motor rotates the sample, and receives power from the diffractometer.

Hesch, V.L.

1991-12-31T23:59:59.000Z

466

Aerosol Sampling from a Unmanned Aerial Vehicle  

Disclosure Number 201202873 Technology Summary ... The present invention enhances the ability to collect such samples, and enables collection of ...

467

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

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

Network Configuration & System Design Network Configuration & System Design About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Network Configuration and System Design Overview | Transmission/Storage | Design Criteria | Importance of Storage| Overall Pipeline System Configuration Overview A principal requirement of the natural gas transmission system is that it be capable of meeting the peak demand of its shippers who have contracts for firm service. To meet this requirement, the facilities developed by the natural gas transmission industry are a combination of transmission pipelines to bring the gas to the market areas and of underground natural gas storage sites and liquefied natural gas (LNG) peaking facilities located in the market areas.

468

Flexible network wireless transceiver and flexible network telemetry transceiver  

DOE Patents (OSTI)

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.

Brown, Kenneth D. (Grain Valley, MO)

2008-08-05T23:59:59.000Z

469

Boiling Water Reactor Sampling Summary: 2012 Update  

Science Conference Proceedings (OSTI)

This report documents boiling water reactor (BWR) sampling practices for key reactor water and feedwater parameters. It includes information on analysis methods, sampling frequencies, and compliance with the recommended sampling frequencies in BWRVIP-190: BWR Vessels and Internals Project, BWR Water Chemistry Guidelines 2008 Revision (EPRI report 1016579).

2013-03-28T23:59:59.000Z

470

On random sampling auctions for digital goods  

Science Conference Proceedings (OSTI)

In the context of auctions for digital goods, an interesting Random Sampling Optimal Price auction (RSOP) has been proposed by Goldberg, Hartline and Wright; this leads to a truthful mechanism. Since random sampling is a popular approach for auctions ... Keywords: auction, mechanism design, random sampling

Saeed Alaei; Azarakhsh Malekian; Aravind Srinivasan

2009-07-01T23:59:59.000Z

471

Peak Oil Food Network | Open Energy Information  

Open Energy Info (EERE)

Network Network Jump to: navigation, search Name Peak Oil Food Network Place Crested Butte, Colorado Zip 81224 Website http://www.PeakOilFoodNetwork. References Peak Oil Food Network[1] LinkedIn Connections This article is a stub. You can help OpenEI by expanding it. The Peak Oil Food Network is a networking organization located in Crested Butte, Colorado, and is open to the general public that seeks to promote the creation of solutions to the challenge of food production impacted by the peak phase of global oil production. Private citizens are encouraged to join and contribute by adding comments, writing blog posts or adding to discussions about food and oil related topics. Peak Oil Food Network can be followed on Twitter at: http://www.Twitter.com/PeakOilFoodNtwk Peak Oil Food Network on Twitter

472

Quantum network coding for quantum repeaters  

E-Print Network (OSTI)

This paper considers quantum network coding, which is a recent technique that enables quantum information to be sent on complex networks at higher rates than by using straightforward routing strategies. Kobayashi et al. have recently showed the potential of this technique by demonstrating how any classical network coding protocol gives rise to a quantum network coding protocol. They nevertheless primarily focused on an abstract model, in which quantum resource such as quantum registers can be freely introduced at each node. In this work, we present a protocol for quantum network coding under weaker (and more practical) assumptions: our new protocol works even for quantum networks where adjacent nodes initially share one EPR-pair but cannot add any quantum registers or send any quantum information. A typically example of networks satisfying this assumption is {\\emph{quantum repeater networks}}, which are promising candidates for the implementation of large scale quantum networks. Our results thus show, for the...

Satoh, Takahiko; Imai, Hiroshi

2012-01-01T23:59:59.000Z

473

Processing top k queries from samples  

Science Conference Proceedings (OSTI)

Top-k queries are desired aggregation operations on data sets. Examples of queries on network data include the top 100 source AS's, top 100 ports, or top Domain names over IP packets or over IP flow records. Since the complete dataset is often ...

Edith Cohen; Nadav Grossaug; Haim Kaplan

2006-12-01T23:59:59.000Z

474

Network Coding based Information Security in Multi-hop Wireless Networks.  

E-Print Network (OSTI)

??Multi-hop Wireless Networks (MWNs) represent a class of networks where messages are forwarded through multiple hops of wireless transmission. Applications of this newly emerging communication (more)

Fan, Yanfei

2010-01-01T23:59:59.000Z

475

Standardization of Online Social Network Services: Concepts, Network Effects and Market Impact.  

E-Print Network (OSTI)

?? During the last decade, there is observed an increasing interest for Social Network Service (SNS)like Facebook, Google+ and similar online social networking platforms. It (more)

Pang, Jiarui

2013-01-01T23:59:59.000Z

476

Traffic Management and Net Neutrality in Wireless Networks  

E-Print Network (OSTI)

with desired network operation in wireless networks than inwireless devices have a greater ability to negatively interfere with desired network operation

Jordan, Scott

2011-01-01T23:59:59.000Z

477

Downhole Fluid Sampling | Open Energy Information  

Open Energy Info (EERE)

Downhole Fluid Sampling Downhole Fluid Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Downhole Fluid Sampling Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Testing Techniques Parent Exploration Technique: Well Testing Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Water composition and source of fluids. Gas composition and source of fluids. Thermal: Water temperature. Distinguish magmatic/mantle heat inputs. Can be used to estimate reservoir fluid temperatures. Dictionary.png Downhole Fluid Sampling: Downhole fluid sampling is done to characterize the chemical, thermal, or hydrological properties of a surface or subsurface aqueous system. Downhole

478

Social Network and Communications Institutional Change Principle |  

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

Network and Communications Institutional Change Principle Network and Communications Institutional Change Principle Social Network and Communications Institutional Change Principle October 8, 2013 - 10:59am Addthis Federal agencies can use social networks and communications to spark and reinforce behavior change for meeting sustainability goals. This principle is based on research findings showing that people and institutions often are strongly influenced by the behaviors and expectations of others. Methods The social network and communications behavior change principle involves informing staff about others' sustainability efforts, especially those that are successful. Methods for social networking and communicating include many internal or external media channels, such as websites, blogs, newsletters, and emails.

479

Rotary Mode Core Sample System availability improvement  

SciTech Connect

The Rotary Mode Core Sample System (RMCSS) is used to obtain stratified samples of the waste deposits in single-shell and double-shell waste tanks at the Hanford Site. The samples are used to characterize the waste in support of ongoing and future waste remediation efforts. Four sampling trucks have been developed to obtain these samples. Truck I was the first in operation and is currently being used to obtain samples where the push mode is appropriate (i.e., no rotation of drill). Truck 2 is similar to truck 1, except for added safety features, and is in operation to obtain samples using either a push mode or rotary drill mode. Trucks 3 and 4 are now being fabricated to be essentially identical to truck 2.

Jenkins, W.W.; Bennett, K.L.; Potter, J.D. [Westinghouse Hanford Co., Richland, WA (United States); Cross, B.T.; Burkes, J.M.; Rogers, A.C. [Southwest Research Institute (United States)

1995-02-28T23:59:59.000Z

480

Electrical Network Supervisor Status Report  

E-Print Network (OSTI)

During year 2000 CERN has installed the Electrical Network Supervisor (ENS) for the monitoring and control of the equipment of the electrical distribution network located in about 100 substations throughout the different sites. In the first phase the system has been installed in parallel with the original CERN-developed system and databases and mimic diagrams have been prepared to cover parts of the distribution network. The system has been integrated with the general ST supervision systems for alarms monitoring and measurement logging, and the data from the ENS are gradually being integrated. In the second phase an extension of the system has been tested to include a direct industrial interface with the electrical equipment without the need for the existing CERN equipment interfaces. During the 2000-2001 shutdown the supervision will be renovated in a number of zones to operate a complete industrial system covering all aspects of the supervision from equipment interfaces to end-user applications.

Poulsen, S

2001-01-01T23:59:59.000Z

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


481

Consensus clustering in complex networks  

E-Print Network (OSTI)

The community structure of complex networks reveals both their organization and hidden relationships among their constituents. Most community detection methods currently available are not deterministic, and their results typically depend on the specific random seeds, initial conditions and tie-break rules adopted for their execution. Consensus clustering is used in data analysis to generate stable results out of a set of partitions delivered by stochastic methods. Here we show that consensus clustering can be combined with any existing method in a self-consistent way, enhancing considerably both the stability and the accuracy of the resulting partitions. This framework is also particularly suitable to monitor the evolution of community structure in temporal networks. An application of consensus clustering to a large citation network of physics papers demonstrates its capability to keep track of the birth, death and diversification of topics.

Lancichinetti, Andrea; 10.1038/srep00336

2012-01-01T23:59:59.000Z

482

Self-Organized Network Flows  

E-Print Network (OSTI)

A model for traffic flow in street networks or material flows in supply networks is presented, that takes into account the conservation of cars or materials and other significant features of traffic flows such as jam formation, spillovers, and load-dependent transportation times. Furthermore, conflicts or coordination problems of intersecting or merging flows are considered as well. Making assumptions regarding the permeability of the intersection as a function of the conflicting flows and the queue lengths, we find self-organized oscillations in the flows similar to the operation of traffic lights.

Helbing, D; Lmmer, S; Helbing, Dirk; Siegmeier, Jan; L\\"{a}mmer, Stefan

2007-01-01T23:59:59.000Z

483

Networking for the Future of Science Network Architecture and  

E-Print Network (OSTI)

-Scale Science: An ESnet Perspective William E. Johnston ESnet Department Head and Senior Scientist wej@es.net, www.es.net This talk is available at www.es.net/ESnet4 Energy Sciences Network Lawrence Berkeley for these complex problems · ESnet is an SC program whose primary mission is to enable the large- scale science

484

SECURITY AND COMMUNICATION NETWORKS Security Comm. Networks. (2009)  

E-Print Network (OSTI)

in fiber-optics continuous- variable quantum key distribution. Physical Review 2005; 72: 050303(R). 37 and quantum cryptography services in optical burst switching networks Yuhua Chen1, , Pramode K. Verma2 University, Stillwater, OK 74078, U.S.A. Summary Optical burst switching (OBS) is the most promising optical

Kak, Subhash

485

Buildings characterization sampling plan, Weldon Spring Site  

SciTech Connect

The purpose of the Buildings Sampling Plan is to provide a systematic approach to characterizing radiological, asbestos and chemical contamination in and around the buildings and structures at the Weldon Spring Chemical Plant Site (WSCPS). This sampling plan reviews historical information; identifies data needs; and outlines sampling procedures, quality assurance, data documentation and reporting requirements for the buildings and equipment characterization at the Weldon Spring Site (WSS). The scope of this plan is limited to the buildings, structures, and equipment from the previous operation of the WSCPS. The Buildings Sampling Plan is divided into nine sections: introduction, background, data needs and sampling plan objectives, sampling rationale and procedure, sample analysis, quality assurance, data documentation, reporting requirements, and references. The data needs, sampling rationale and procedures and sample analysis sections of this work plan are subdivided into radiological, asbestos and chemical sections. Because different sampling techniques and analyses will be required for radiological, asbestos and chemical contamination, separate subsections are used. The investigations for each contaminant will be conducted independently. Similar historical and descriptive information is repeated in the subsections, but the perspective and information vary slightly. 24 refs., 5 figs., 14 tabs.

Not Available

1988-08-01T23:59:59.000Z

486

Air sampling in the workplace. Final report  

Science Conference Proceedings (OSTI)

This report provides technical information on air sampling that will be useful for facilities following the recommendations in the NRC`s Regulatory Guide 8.25, Revision 1, ``Air sampling in the Workplace.`` That guide addresses air sampling to meet the requirements in NRC`s regulations on radiation protection, 10 CFR Part 20. This report describes how to determine the need for air sampling based on the amount of material in process modified by the type of material, release potential, and confinement of the material. The purposes of air sampling and how the purposes affect the types of air sampling provided are discussed. The report discusses how to locate air samplers to accurately determine the concentrations of airborne radioactive materials that workers will be exposed to. The need for and the methods of performing airflow pattern studies to improve the accuracy of air sampling results are included. The report presents and gives examples of several techniques that can be used to evaluate whether the airborne concentrations of material are representative of the air inhaled by workers. Methods to adjust derived air concentrations for particle size are described. Methods to calibrate for volume of air sampled and estimate the uncertainty in the volume of air sampled are described. Statistical tests for determining minimum detectable concentrations are presented. How to perform an annual evaluation of the adequacy of the air sampling is also discussed.

Hickey, E.E.; Stoetzel, G.A.; Strom, D.J.; Cicotte, G.R. [Pacific Northwest Lab., Richland, WA (United States); Wiblin, C.M. [Advanced Systems Technology, Inc., Atlanta, GA (United States); McGuire, S.A. [Nuclear Regulatory Commission, Washington, DC (United States). Div. of Regulatory Applications

1993-09-01T23:59:59.000Z

487

Meteorological Network Expansion Using Information Decay Concept  

Science Conference Proceedings (OSTI)

A generalized network design methodology was developed by using the basic entropy concept introduced by Shannon in communication engineering. In order to select potential sites for meteorological network expansion purposes, the meteorological ...

Tahir Husain; Mustafa A. Ukayli; Hasin U. Khan

1986-03-01T23:59:59.000Z

488

Virtual infrastructure for wireless ad hoc networks  

E-Print Network (OSTI)

One of the most significant challenges introduced by ad hoc networks is coping with the unpredictable deployment, uncertain reliability, and erratic communication exhibited by emerging wireless networks and devices. The ...

Gilbert, Seth, 1976-

2007-01-01T23:59:59.000Z

489

Review: learning bayesian networks: Approaches and issues  

Science Conference Proceedings (OSTI)

Bayesian networks have become a widely used method in the modelling of uncertain knowledge. Owing to the difficulty domain experts have in specifying them, techniques that learn Bayesian networks from data have become indispensable. Recently, however, ...

Rnn Daly; Qiang Shen; Stuart Aitken

2011-05-01T23:59:59.000Z

490

Design of reliable SONET feeder networks  

Science Conference Proceedings (OSTI)

We address the physical SONET network design problem of selecting stackable, unidirectional rings connecting central office nodes (COs) and remote nodes (RNs). This problem frequently arises in designing feeder transport networks to support centralized ... Keywords: Communications, Heuristic, Integer Programming

June S. Park; Byung Ha Lim; Larry J. Leblanc

2007-03-01T23:59:59.000Z

491

Definition: Customer System Communications Network | Open Energy  

Open Energy Info (EERE)

System Communications Network System Communications Network Jump to: navigation, search Dictionary.png Customer System Communications Network The communications network or networks between the customers' premise and the utility, designed to provide two-way communications between customer systems and utility information systems. These networks can utilize wired or wireless connections, and can be utility-owned or provided as services by a third party.[1] Related Terms system References ↑ https://www.smartgrid.gov/category/technology/customer_system_communications_network [[C LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ategory: Smart Grid Definitions|Template:BASEPAGENAME]] Retrieved from "http://en.openei.org/w/index.php?title=Definition:Customer_System_Communications_Network&oldid=480382"

492

Power Control in Wireless Cellular Networks  

Science Conference Proceedings (OSTI)

Transmit power in wireless cellular networks is a key degree of freedom in the management of interference, energy, and connectivity. Power control in both the uplink and downlink of a cellular network has been extensively studied, especially over the ...

Mung Chiang; Prashanth Hande; Tian Lan; Chee Wei Tan

2008-04-01T23:59:59.000Z

493

Distributed computation in wireless and dynamic networks  

E-Print Network (OSTI)

Today's wireless networks tend to be centralized: they are organized around a fixed central backbone such as a network of cellular towers or wireless access points. However, as mobile computing devices continue to shrink ...

Oshman, Rotei

2012-01-01T23:59:59.000Z

494

Haggle: seamless networking for mobile applications  

Science Conference Proceedings (OSTI)

This paper presents Haggle, an architecture for mobile devices that enables seamless network connectivity and application functionality in dynamic mobile environments. Current applications must contain significant network binding and protocol logic, ...

Jing Su; James Scott; Pan Hui; Jon Crowcroft; Eyal De Lara; Christophe Diot; Ashvin Goel; Meng How Lim; Eben Upton

2007-09-01T23:59:59.000Z

495

Cell outage management in LTE networks  

Science Conference Proceedings (OSTI)

Cell outage management is a functionality aiming to automatically detect and mitigate outages that occur in radio networks due to unexpected failures. We envisage that future radio networks autonomously detect an outage based on measurements, from e.g., ...

M. Amirijoo; L. Jorguseski; T. Krner; R. Litjens; M. Neuland; L. C. Schmelz; U. Trke

2009-09-01T23:59:59.000Z

496

Routing in heterogeneous wireless ad hoc networks  

E-Print Network (OSTI)

Wireless ad hoc networks are used in several applications ranging from infrastructure monitoring to providing Internet connectivity to remote locations. A common assumption about these networks is that the devices that ...

Cheekiralla, Sivaram M. S. L., 1980-

2008-01-01T23:59:59.000Z

497

Network Security for Substation Automation Systems  

Science Conference Proceedings (OSTI)

The protection of critical infrastructure against electronic and communication network based attacks becomes more and more important. This work investigates the threat of network-based attacks on substations, the nodes of the electric power grid. Three ...

Martin Naedele; Dacfey Dzung; Michael Stanimirov

2001-09-01T23:59:59.000Z

498

Path inference in data center networks  

Science Conference Proceedings (OSTI)

Path inference is the ability to determine the sequence of devices traversed by a packet within an IP network. This is a fundamental building block for several network and service management applications such as troubleshooting, planning, and ...

Kyriaki Levanti, Vijay Gopalakrishnan, Hyong S. Kim, Seungjoon Lee, Emmanuil Mavrogiorgis, Aman Shaikh

2012-10-01T23:59:59.000Z

499

Underwater Sensor Networks: Applications, Advances, and Challenges  

E-Print Network (OSTI)

Underwater Sensor Networks: Applications, Advances, and Challenges By John Heidemann1 , Milica- mentation of underwater wireless sensor networks. We summarize key applications and the main phenomena hardware, testbeds, and simulation tools available to the research community. Keywords: underwater

Heidemann, John

500

An algorithmic approach to social networks  

E-Print Network (OSTI)

Social networks consist of a set of individuals and some form of social relationship that ties the individuals together. In this thesis, we use algorithmic techniques to study three aspects of social networks: (1) we analyze ...

Liben-Nowell, David

2005-01-01T23:59:59.000Z