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1

Self-Configuration for Wireless Local Area Networks  

Science Conference Proceedings (OSTI)

This paper concentrates on self-configuration in wireless local area networks (WLANs). As the growth of the stringent demand of heterogeneity and re-configurability in future wireless networks, the initial configuration is getting more and more complex, ... Keywords: Analytic hierarchy process, Grey relational analysis, Neighboring AP discovery, Self-configuration

Zhiyong Feng; Qixun Zhang; Dian Fan; Litao Liang; Ping Zhang

2010-03-01T23:59:59.000Z

2

On the wireless local area network design problem with performance guarantees  

Science Conference Proceedings (OSTI)

In this paper, we propose a model for the wireless local area network (WLAN) design problem with performance guarantees. This problem consists of selecting the location of the access points (APs) as well as the power and the channel of each AP. The performance ... Keywords: Mathematical model, Network design and planning, Tabu search, Wireless local area network (WLAN)

Abderraouf Bahri; Steven Chamberland

2005-08-01T23:59:59.000Z

3

A MIMO-OFDM Testbed for Wireless Local Area Networks  

E-Print Network (OSTI)

this paper is to present the design steps leading to the demonstration of a software-radio testbed with multiple transmit (Tx) and receive (Rx) antennas, aiming at enhancing the performance of current WLAN standards. The expected benefits of multiple antennas are subject to the propagation conditions in wireless indoor local area transmissions. Therefore, the propagation environment must be carefully studied and analyzed before appropriate multipleantenna transmission techniques are devised and evaluated. In this regard, the scope of our work is larger than the typical prototyping e#orts in that the project resulted in the production of an entirely custom demonstrator by the various industrial partners, including the algorithmic studies, the hardware handling the baseband processing, the RF components, up to the antennas, and the working real-time implementation of the coding and decoding algorithms. In particular, the channel characterization e#ort and the corresponding algorithmic adaptations proposed in this work, are typically absent from smaller-scale prototyping projects. This characterization was done by measuring the channel parameters in the frequency band of interest and developing channel models as well as corresponding channel simulation capabilities in order to produce typical channel impulse responses for algorithms evaluation. Then, using this preliminary information on propagation characteristics, various multiantenna processing techniques have been studied and compared according to performance versus complexity criteria. Similarly, the design and use of custom RF components and antennas are often replaced by channel simulators. Another major point in the validation of the testbed performance concerns the careful comparisons and cross-validations between...

Albert Guillen; Albert Guillén I Fàbregas; Maxime Guillaud; Dirk T. M. Slock; Karine Gosse; Stéphanie Rouquette; Re Ribeiro Dias; Xavier Miet; Jean-marc Conrat; Yann Toutain; Alain Peden; Zaiqing Li

2006-01-01T23:59:59.000Z

4

A Study of the Environmental Impact of Wired and Wireless Local Area Network Access  

E-Print Network (OSTI)

consumed and greenhouse gas emissions in the manufacture of Ethernet switches and WiFi access points. INTRODUCTION Network access through local area networks (LANs) is ubiquitous in residential, commercial, along with the greenhouse gas emissions they are responsible for. In addition, this paper also aims

Sikdar, Biplab

5

Design and initial deployment of the wireless local area networking infrastructure at Sandia National Laboratories.  

SciTech Connect

A major portion of the Wireless Networking Project at Sandia National Laboratories over the last few years has been to examine IEEE 802.11 wireless networking for possible use at Sandia and if practical, introduce this technology. This project team deployed 802.11a, b, and g Wireless Local Area Networking at Sandia. This report examines the basics of wireless networking and captures key results from project tests and experiments. It also records project members thoughts and designs on wireless LAN architecture and security issues. It documents some of the actions and milestones of this project, including pilot and production deployment of wireless networking equipment, and captures the team's rationale behind some of the decisions made. Finally, the report examines lessons learned, future directions, and conclusions.

Long, John P.; Hamill, Michael J.; Mitchell, M. G.; Miller, Marc M.; Witzke, Edward L.; Wiener, Dallas J

2006-11-01T23:59:59.000Z

6

Regional and local networks of horizontal control, Cerro Prieto Geothermal Area, Mexico  

DOE Green Energy (OSTI)

The Cerro Prieto geothermal area in the Mexicali Valley 30 km southeast of Mexicali, Baja California, is probably deforming due to (1) the extraction of large volumes of steam and hot water, and (2) active tectonism. Two networks of precise horizontal control were established in Mexicali Valley by the US Geological Survey in 1977-78 to measure both types of movement as they occur. These networks consisted of (1) a regional trilateration net brought into the mountain ranges west of the geothermal area from survey stations on an existing US Geological Survey crustal-strain network north of the international border, and (2) a local net tied to stations in the regional net and encompassing the area of present and planned geothermal production. Survey lines in this net were selected to span areas of probable ground-surface movements in and around the geothermal area. Electronic distance measuring (EDM) instruments, operating with a modulated laser beam, were used to measure the distances between stations in both networks. The regional net was run using a highly precise long-range EDM instrument, helicopters for transportation of men and equipment to inaccessible stations on mountain peaks, and a fixed wing airplane flying along the line of sight. Precision of measurements with this complex long-range system approached 0.2 parts per million of line length. The local net was measured with medium range EDM instrument requiring minimal ancillary equipment. Precision of measurements with this less complex system approached 3 parts per million for the shorter line lengths. The detection and analysis of ground-surface movements resulting from tectonic strains or induced by geothermal fluid withdrawal is dependent on subsequent resurveys of these networks.

Massey, B.L.

1978-01-01T23:59:59.000Z

7

Networking without Dynamic Host Configuration Protocol server in Ethernet and Wireless Local Area Network  

Science Conference Proceedings (OSTI)

A Dynamic Host Configuration Protocol (DHCP) server is a well-known server deployed at a network to manage Internet Protocol (IP) addresses temporarily rentable to hosts in the network. Besides, a DHCP server provides hosts with important network information ... Keywords: AHCM, ARP, Autoconfiguration, Automatic host configuration, DHCP, Free IP address

Tzu-Chi Huang; Kuo-Chih Chu

2011-11-01T23:59:59.000Z

8

A Six-Beam-Switched Array Antenna for 5.2 GHz High-Speed Wireless Local Area Networks  

Science Conference Proceedings (OSTI)

A six-beam-switched array antenna with a flat profile was designed for the application of high-speed wireless local-area networks in the range of 5–6 GHz. This six-beam-switched array antenna is composed of an analog beamformer and a microstrip-slot ... Keywords: beamformer, single-pole double-throw switch, slot antenna, switched-beam antenna

Sheng-Fuh Chang; Jia-Liang Chen; Chin-San Lin; Jing-Jang Luo

2001-04-01T23:59:59.000Z

9

Automatic planning tool for deployment of indoor wireless local area networks  

Science Conference Proceedings (OSTI)

This paper presents an automatic planning software tool for indoor wireless networks. As a consequence of increasing number of wireless interface based systems, automation of deployments becomes actually relevant. There are a lot of parameters that influences ... Keywords: algorithms, network planning, wireless LAN

Mariano Molina García; Alfonso Fernandez-Durán; José I. Alonso

2009-06-01T23:59:59.000Z

10

Metropolitan area network support at Fermilab  

Science Conference Proceedings (OSTI)

Advances in wide area network service offerings, coupled with comparable developments in local area network technology have enabled many research sites to keep their offsite network bandwidth ahead of demand. For most sites, the more difficult and costly aspect of increasing wide area network capacity is the local loop, which connects the facility LAN to the wide area service provider(s). Fermilab, in coordination with neighboring Argonne National Laboratory, has chosen to provide its own local loop access through leasing of dark fiber to nearby network exchange points, and procuring dense wave division multiplexing (DWDM) equipment to provide data channels across those fibers. Installing and managing such optical network infrastructure has broadened the Laboratory's network support responsibilities to include operating network equipment that is located off-site, and is technically much different than classic LAN network equipment. Effectively, the Laboratory has assumed the role of a local service provider. This paper will cover Fermilab's experiences with deploying and supporting a Metropolitan Area Network (MAN) infrastructure to satisfy its offsite networking needs. The benefits and drawbacks of providing and supporting such a service will be discussed.

DeMar, Phil; Andrews, Chuck; Bobyshev, Andrey; Crawford, Matt; Colon, Orlando; Fry, Steve; Grigaliunas, Vyto; Lamore, Donna; Petravick, Don; /Fermilab

2007-09-01T23:59:59.000Z

11

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

12

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

13

UWB-based sensor networks for localization in mining environments  

Science Conference Proceedings (OSTI)

Wireless sensor networks (WSN) have attached a great attention in the last few years. WSN offer several advantages over the traditional sensor networks, such as elimination of costly wires, security and larger area coverage. In the last few years, there ... Keywords: Localization, Nonlinear optimization, Sensor networks, ToA estimation, UWB ranging, Underground environments

Abdellah Chehri; Paul Fortier; Pierre Martin Tardif

2009-07-01T23:59:59.000Z

14

State and Local Energy Efficiency Action Network  

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

The State and Local Energy Efficiency Action Network (SEE Action) is a state- and local-led effort facilitated by the U.S. Department of Energy and the U.S. Environmental...

15

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

Benoît Latré; Bart Braem; Ingrid Moerman; Chris Blondia; Piet Demeester

2011-01-01T23:59:59.000Z

16

Mobile sensor network localization in harsh environments  

Science Conference Proceedings (OSTI)

The node localization problem in mobile sensor networks has recently received significant attention. Particle filters, adapted from robotics, have produced good localization accuracies in conventional settings, but suffer significantly when used in challenging ...

Harsha Chenji; Radu Stoleru

2010-06-01T23:59:59.000Z

17

Opportunistic packet scheduling in body area networks  

Science Conference Proceedings (OSTI)

Significant research efforts are being devoted to Body Area Networks (BAN) due to their potential for revolutionizing healthcare practices. Energy-efficiency and communication reliability are critically important for these networks. In an experimental ...

K. Shashi Prabh; Jan-Hinrich Hauer

2011-02-01T23:59:59.000Z

18

Definition: Home Area Network | Open Energy Information  

Open Energy Info (EERE)

Area Network Area Network Jump to: navigation, search Dictionary.png Home Area Network A communication network within the home of a residential electricity customer that allows transfer of information between electronic devices, including, but not limited to, in-home displays, computers, energy management devices, direct load control devices, distributed energy resources, and smart meters. Home area networks can be wired or wireless.[1] Related Terms electricity generation, distributed energy resource References ↑ https://www.smartgrid.gov/category/technology/home_area_network [[Ca LikeLike UnlikeLike You like this.Sign Up to see what your friends like. tegory: Smart Grid Definitionssustainability,smart grid,sustainability,smart grid, |Template:BASEPAGENAME]]sustainability,smart grid,sustainability,smart

19

TCP performance analysis for wide area networks  

SciTech Connect

Even though networks have been getting faster, perceived throughput at the application level has not increased accordingly. In an attempt to identify many of the performance bottlenecks, we collected and analyzed data over a wide area network (WAN) at T3 (45 Mbps) bandwidth. The information gained will assist in designing new protocols and/or algorithms that are consistent with future high- speed requirements.

Chen, H.Y.; Hutchins, J.A. [Sandia National Labs., Livermore, CA (United States); Testi, N. [Sandia National Labs., Albuquerque, NM (United States)

1993-08-01T23:59:59.000Z

20

Time-bounded essential localization for wireless sensor networks  

Science Conference Proceedings (OSTI)

In many practical applications of wireless sensor networks, it is crucial to accomplish the localization of sensors within a given time bound. We find that the traditional definition of relative localization is inappropriate for evaluating its actual ... Keywords: essential localization, relative localization, time-bounded localization, wireless sensor networks

Wei Cheng; Nan Zhang; Xiuzhen Cheng; Min Song; Dechang Chen

2013-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

Analyzing localization errors in one-dimensional sensor networks  

Science Conference Proceedings (OSTI)

One-dimensional sensor networks can be found in many fields and demand node location information for various applications. Developing localization algorithms in one-dimensional sensor networks is trivial, due to the fact that existing localization algorithms ... Keywords: Cramér-Rao lower bound, Error propagation, Estimation errors, Localization, One-dimensional sensor networks

Baoqi Huang; Changbin Yu; Brian D. O. Anderson

2012-02-01T23:59:59.000Z

22

Home Area Network Performance and Reliability  

Science Conference Proceedings (OSTI)

In current deployments, the in-meter communications interface between a utilitys advanced metering infrastructure (AMI) system and a consumers home area network (HAN) could be a critical link for the implementation of retail energy services. The reliability of communications across this interface will affect the overall customer experience and may impact the value of these services. This report examines technologies currently being used in North America and elsewhere to implement that link narrowband and...

2010-12-31T23:59:59.000Z

23

Home Area Networks and the Smart Grid  

Science Conference Proceedings (OSTI)

With the wide array of home area network (HAN) options being presented as solutions to smart grid challenges for the home, it is time to compare and contrast their strengths and weaknesses. This white paper examines leading and emerging HAN technologies. The emergence of the smart grid is bringing more networking players into the field. The need for low consistent bandwidth usage differs enough from the traditional information technology world to open the door to new technologies. The predominant players currently consist of a blend of the old and new. Within the wired world Ethernet and HomePlug Green PHY are leading the way with an advantage to HomePlug because it doesn't require installing new wires. In the wireless the realm there are many more competitors but WiFi and ZigBee seem to have the most momentum.

Clements, Samuel L.; Carroll, Thomas E.; Hadley, Mark D.

2011-04-01T23:59:59.000Z

24

Local network distribution practices -- a walk from MDF to customer  

Science Conference Proceedings (OSTI)

This paper explores the various components that make up the local network from the MDF in the local exchange to the customer. The dominant distribution media in the local network is copper and this will continue to hold its position as a simple and reliable ...

D. I. Monro; D. S. Butler; S. Worger

2007-07-01T23:59:59.000Z

25

Local control of area-preserving maps  

E-Print Network (OSTI)

We present a method of control of chaos in area-preserving maps. This method gives an explicit expression of a control term which is added to a given area-preserving map. The resulting controlled map which is a small and suitable modification of the original map, is again area-preserving and has an invariant curve whose equation is explicitly known.

Cristel Chandre; Michel Vittot; Guido Ciraolo

2008-09-01T23:59:59.000Z

26

Optimal Training Sequences for Locally Recurrent Neural Networks  

Science Conference Proceedings (OSTI)

The problem of determining an optimal training schedule for a locally recurrent neural network is discussed. Specifically, the proper choice of the most informative measurement data guaranteeing the reliable prediction of the neural network response ...

Krzysztof Patan; Maciej Patan

2009-09-01T23:59:59.000Z

27

Optimized renewable energy forecasting in local distribution networks  

Science Conference Proceedings (OSTI)

The integration of renewable energy sources (RES) into local energy distribution networks becomes increasingly important. Renewable energy highly depends on weather conditions, making it difficult to maintain stability in such networks. To still enable ...

Robert Ulbricht; Ulrike Fischer; Wolfgang Lehner; Hilko Donker

2013-03-01T23:59:59.000Z

28

Technology Challenges in the Development of Wireless Personal Area Networks  

Science Conference Proceedings (OSTI)

Wireless personal area networks (WPANs) will be major components of the heterogeneous communication environment of the future. The devices in a WPAN must be low cost and operate for a long time from a battery. As a consequence, they pose demanding ... Keywords: 4G networks, packaging technology, processing technology, wireless personal area networks

Marc Engels

2002-08-01T23:59:59.000Z

29

State and Local Energy Efficiency Action Network | Department of Energy  

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

Commercial Buildings » State and Local Energy Efficiency Action Commercial Buildings » State and Local Energy Efficiency Action Network State and Local Energy Efficiency Action Network Graphic of logo of the State and Local Energy Efficiency (SEE) Action Network, which includes a green map of the United States with all the states outlined placed over a large arrow. The State and Local Energy Efficiency Action Network (SEE Action) is a state and local effort facilitated by the U.S. Department of Energy (DOE) and the U.S. Environmental Protection Agency (EPA) that helps states, utilities, and other local stakeholders take energy efficiency to scale and achieve all cost-effective energy efficiency by 2020. This initiative has engaged diverse stakeholders in the development and implementation of eight energy efficiency roadmaps across the residential, commercial, and

30

Underwater Localization in Sparse 3D Acoustic Sensor Networks  

E-Print Network (OSTI)

Underwater Localization in Sparse 3D Acoustic Sensor Networks Wei Cheng1,2, Amin Y. Teymorian the localization problem in sparse 3D underwater sensor networks. Considering the fact that depth information is typically available for underwater sensors, we transform the 3D underwater positioning problem into its two

Cheng, Xiuzhen "Susan"

31

Local model network identification for online engine modelling  

Science Conference Proceedings (OSTI)

In this paper an evolving local model network (LMN) which is especially suited for engine modelling is presented and discussed. The incremental construction of the model tree allows to gradually increase the model complexity while a proper initialisation ... Keywords: Engine modelling, Incremental learning, Local model network, Online learning

Christoph Hametner; Stefan Jakubek

2013-01-01T23:59:59.000Z

32

UWB-Based Localization in Wireless Sensor Networks Di Wu, Lichun Bao, Renfa Li  

E-Print Network (OSTI)

for WPANs (wireless personal area networks) using the UWB technology. We place our system in coal mine and localization algorithms can accurately compute moving object locations in coal mine environments. Keywords formation assump- tions. In this paper, we place our localization method in coal mine environments

Bao, Lichun

33

Localization with sparse acoustic sensor network using UAVs as information-seeking data mules  

Science Conference Proceedings (OSTI)

We propose and demonstrate a novel architecture for on-the-fly inference while collecting data from sparse sensor networks. In particular, we consider source localization using acoustic sensors dispersed over a large area, with the individual sensors ... Keywords: Routing, UAV routing, acoustic source localization, angle of arrival, heterogeneous, large scale, time of arrival

Daniel J. Klein, Sriram Venkateswaran, Jason T. Isaacs, Jerry Burman, Tien Pham, João Hespanha, Upamanyu Madhow

2013-05-01T23:59:59.000Z

34

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

35

Queuing model based on scheduling strategies affect local network services  

Science Conference Proceedings (OSTI)

This paper is a comprehensive study of some queuing scheduling strategies that operates on a local network. The study addresses the most convenient strategies used in operating systems. It indicates a new queue model based on some scheduling strategies ... Keywords: first come first serve, last come first serve, network services, queue jobs, queue strategy, strategies performance

Zakaria Suliman Zubi; Ismaeel H. Al-Dubar

2009-04-01T23:59:59.000Z

36

Localized power-aware routing in linear wireless sensor networks  

Science Conference Proceedings (OSTI)

Energy-efficency is a key concern when designing protocols for wireless sensor networks (WSN). This is of particular importance in commercial applications where demonstrable return on investment is a crucial factor. One such commercial application that ... Keywords: energy efficiency, linear topology, localized protocol, routing, wireless sensor network

Marco Zimmerling; Waltenegus Dargie; Johnathan M. Reason

2008-05-01T23:59:59.000Z

37

Local, sustainable, small-scale cellular networks  

Science Conference Proceedings (OSTI)

Over five billion people are active cellular subscribers, spending over a trillion dollars a year on communications. Despite this, hundreds of millions of people are still not connected. Implicit in these networks is a top-down design, with large nation-scale ... Keywords: information and communications technology for development, legal factors

Kurtis Heimerl, Shaddi Hasan, Kashif Ali, Eric Brewer, Tapan Parikh

2013-12-01T23:59:59.000Z

38

Wireless Sensor Networks for Underwater Localization: A Survey  

E-Print Network (OSTI)

Autonomous Underwater Vehicles (AUVs) have widely deployed in marine investigation and ocean exploration in recent years. As the fundamental information, their position information is not only for data validity but also for many real-world applications. Therefore, it is critical for the AUV to have the underwater localization capability. This report is mainly devoted to outline the recent advancement of Wireless Sensor Networks (WSN) based underwater localization. Several classic architectures designed for Underwater Acoustic Sensor Network (UASN) are briefly introduced. Acoustic propagation and channel models are described and several ranging techniques are then explained. Many state-of-the-art underwater localization algorithms are introduced, followed by the outline of some

Sen Wang; Huosheng Hu

2012-01-01T23:59:59.000Z

39

Mesh network model for urban area  

E-Print Network (OSTI)

Decreasing population, high crime rate, and limited economic opportunities are all symptoms of urban decline. These characteristics are, unfortunately, evident in major cities and small towns. Local municipalities in these ...

Chiang, Nhan Tu

2008-01-01T23:59:59.000Z

40

A novel storage area network (SAN) extension solution over passive optical networks (PONs).  

E-Print Network (OSTI)

??After 9/11 and the 2003 power grid failure in North America, storage area network (SAN) extension has emerged as a critical option to ensure business… (more)

Yin, Si

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

Home Area Network Test, Evaluation, and Diagnostics Tools  

Science Conference Proceedings (OSTI)

This report provides a detailed description of a set of tools that may be used for evaluation of the communication quality of Home Area Networks (HANs). The development of these tools is a continuation of work begun in 2008 and documented in EPRI report 1020106, "Home Area Network Performance Metrics and Monitoring." This report presents advancements and modifications made during 2011 to extend the capabilities of these test tools for a range of applications. This report also introduces hardware and soft...

2011-12-20T23:59:59.000Z

42

Hybrid Inference for Sensor Network Localization using a Mobile Robot  

E-Print Network (OSTI)

Hybrid Inference for Sensor Network Localization using a Mobile Robot Dimitri Marinakis, CIM, McGill University dmarinak@cim.mcgill.ca David Meger, University of British Columbia dpmeger@cs.ubc.ca Ioannis Rekleitis, Canadian Space Agency yiannis@cim.mcgill.ca Gregory Dudek CIM, McGill University dudek@cim

Dudek, Gregory

43

NEUTRONIC REACTOR HAVING LOCALIZED AREAS OF HIGH THERMAL NEUTRON DENSITIES  

DOE Patents (OSTI)

A nuclear reactor for the irradiation of materials designed to provide a localized area of high thermal neutron flux density in which the materials to be irradiated are inserted is described. The active portion of the reactor is comprised of a cubicle graphite moderator of about 25 feet in length along each axis which has a plurality of cylindrical channels for accommodatirg elongated tubular-shaped fuel elements. The fuel elements have radial fins for spacing the fuel elements from the channel walls, thereby providing spaces through which a coolant may be passed, and also to serve as a heatconductirg means. Ducts for accommnodating the sample material to be irradiated extend through the moderator material perpendicular to and between parallel rows of fuel channels. The improvement is in the provision of additional fuel element channels spaced midway between 2 rows of the regular fuel channels in the localized area surrounding the duct where the high thermal neutron flux density is desired. The fuel elements normally disposed in the channels directly adjacent the duct are placed in the additional channels, and the channels directly adjacent the duct are plugged with moderator material. This design provides localized areas of high thermal neutron flux density without the necessity of providing additional fuel material.

Newson, H.W.

1958-06-01T23:59:59.000Z

44

Field Area Network Demo - September 2013 Advisors Meeting - Presentations and Minutes (Hydro One Networks)  

Science Conference Proceedings (OSTI)

The field area network (FAN) concept is emerging as a ubiquitous, high-performance, secure, reliable network providing "last mile" acquisition (SCADA) and advanced metering infrastructure (AMI)systems, as well as network access services for advanced distribution management and automation, distributed energy resources, and any future smart grid applications requiring connectivity from within and beyond the distribution substation.One objective of this project is to establish ...

2013-11-13T23:59:59.000Z

45

Green optical network design : power optimization of wide area and metropolitan area networks  

E-Print Network (OSTI)

Advancements in technology are fueling huge growth in network traffic capacity. Demand for low cost, reliable, and high bitrate transmissions grows 40-110% internationally every year. To date, most research has focused on ...

Lin, Katherine Xiaoyan

2011-01-01T23:59:59.000Z

46

INTERPLANETARY NETWORK LOCALIZATIONS OF KONUS SHORT GAMMA-RAY BURSTS  

SciTech Connect

Between the launch of the Global Geospace Science Wind spacecraft in 1994 November and the end of 2010, the Konus-Wind experiment detected 296 short-duration gamma-ray bursts (including 23 bursts which can be classified as short bursts with extended emission). During this period, the Interplanetary Network (IPN) consisted of up to 11 spacecraft, and using triangulation, the localizations of 271 bursts were obtained. We present the most comprehensive IPN localization data on these events. The short burst detection rate, {approx}18 yr{sup -1}, exceeds that of many individual experiments.

Pal'shin, V. D.; Svinkin, D. S.; Aptekar, R. L.; Golenetskii, S. V.; Frederiks, D. D.; Mazets, E. P.; Oleynik, P. P.; Ulanov, M. V. [Ioffe Physical Technical Institute, St. Petersburg, 194021 (Russian Federation); Hurley, K. [Space Sciences Laboratory, University of California, 7 Gauss Way, Berkeley, CA 94720-7450 (United States); Cline, T.; Trombka, J.; McClanahan, T. [NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Mitrofanov, I. G.; Golovin, D. V.; Kozyrev, A. S.; Litvak, M. L.; Sanin, A. B. [Space Research Institute, 84/32, Profsoyuznaya, Moscow 117997 (Russian Federation); Boynton, W.; Fellows, C.; Harshman, K., E-mail: val@mail.ioffe.ru [Department of Planetary Sciences, University of Arizona, Tucson, AZ 85721 (United States); and others

2013-08-15T23:59:59.000Z

47

Proposed Flyers Creek Wind Farm, Blayney Local Government Area  

E-Print Network (OSTI)

Application reference: MP 08_0252 The Flyers Creek Wind Turbine Awareness Group Inc. (FCWTAG) is comprised of a large group of concerned residents of the Blayney Local Government Area. We object to the Proposed Flyers Creek Wind Farm (“the proposal”) in the strongest possible terms. We believe this development is totally inappropriate. This submission details our objections. The FCWTAG requests that representatives of the group be given the opportunity to speak at the Planning Assessment Commission hearing related to this proposal. Yours faithfully,

Major Development Assessment; Sydney Nsw; Dr. Colleen; J Watts Oam

2011-01-01T23:59:59.000Z

48

LANSCE | Lujan Center | Thrust Area | Local Structure, Magnetism, and  

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

User Instruments User Instruments Reflectometers Asterix SPEAR Powder Diffractometers HIPD HIPPO NPDF Engineering Diffraction SMARTS Chemical Spectroscopy FDS Small Angle Scattering LQD Protein Crystallography PCS Inelastic Neutron Spectrometer Pharos Single Crystal Diffractometer SCD Contacts Lujan Center Leader Mark Bourke 505.667.6069 Deputy Leader (Interim) Anna Llobet 505.665.1367 Experimental Area Manager) Charles Kelsey 505.665.5579 Experiment Coordinator Leilani Conradson 505.665.9505 User Office Administrator Lisa Padilla 505.667.5649 Administrative Assistant Melissa Martinez 505.665.0391 Thrust Area Local Structure, Magnetism, and Nanomaterials The Lujan Neutron Scattering Center encompasses a set of powder diffractometers, instrument scientist specialists, and sample environments (pressure, temperature, and magnetic field) equipped to address challenges

49

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

50

Sandia's Network for Supercomputer `96: Linking Supercomputers in a Wide Area Asynchronous Transfer Mode (ATM) Network  

E-Print Network (OSTI)

The advanced networking department at Sandia National Laboratories has used the annual Supercomputing conference sponsored by the IEEE and ACM for the past several years as a forum to demonstrate and focus communication and networking developments. At Supercomputing 96, for the first time, Sandia National Laboratories, Los Alamos National Laboratory, and Lawrence Livermore National Laboratory combined their Supercomputing 96 activities within a single research booth under the ASCI banner. Sandia provided the network design and coordinated the networking activities within the booth. At Supercomputing 96, Sandia elected: to demonstrate wide area network connected Massively Parallel Processors, to demonstrate the functionality and capability of Sandia's new edge architecture, to demonstrate inter-continental collaboration tools, and to demonstrate ATM video capabilities. This paper documents those accomplishments, discusses the details of their implementation, and describes how these dem...

Thomas Pratt Luis; Luis G. Martinez; Thomas V. Archuleta

1997-01-01T23:59:59.000Z

51

Cellular telephone-based wide-area radiation detection network  

DOE Patents (OSTI)

A network of radiation detection instruments, each having a small solid state radiation sensor module integrated into a cellular phone for providing radiation detection data and analysis directly to a user. The sensor module includes a solid-state crystal bonded to an ASIC readout providing a low cost, low power, light weight compact instrument to detect and measure radiation energies in the local ambient radiation field. In particular, the photon energy, time of event, and location of the detection instrument at the time of detection is recorded for real time transmission to a central data collection/analysis system. The collected data from the entire network of radiation detection instruments are combined by intelligent correlation/analysis algorithms which map the background radiation and detect, identify and track radiation anomalies in the region.

Craig, William W. (Pittsburg, CA); Labov, Simon E. (Berkeley, CA)

2009-06-09T23:59:59.000Z

52

Power Grid Network Evolutions for Local Energy Trading  

E-Print Network (OSTI)

The shift towards a energy Grid dominated by prosumers (consumers and producers of energy) will inevitably have repercussions on the distribution infrastructure. Today it is a hierarchical one designed to deliver energy from large scale facilities to end-users. Tomorrow it will be a capillary infrastructure at the medium and Low Voltage levels that will support local energy trading among prosumers. In our previous work, we analyzed the Dutch Power Grid and made an initial analysis of the economic impact topological properties have on decentralized energy trading. In this paper, we go one step further and investigate how different networks topologies and growth models facilitate the emergence of a decentralized market. In particular, we show how the connectivity plays an important role in improving the properties of reliability and path-cost reduction. From the economic point of view, we estimate how the topological evolutions facilitate local electricity distribution, taking into account the main cost ingredi...

Pagani, Giuliano Andrea

2012-01-01T23:59:59.000Z

53

A study of lustre networking over a 100 gigabit wide area network with 50 milliseconds of latency  

Science Conference Proceedings (OSTI)

As part of the SCinet Research Sandbox at the 2011 International Conference for High Performance Computing, Networking, Storage and Analysis (SC11), Indiana University utilized a dedicated 100 Gbps wide area network (WAN) link spanning more than 3,500 ... Keywords: i/o benchmarking, lustre, networking, wide area file systems

Scott Michael; Liang Zhen; Robert Henschel; Stephen Simms; Eric Barton; Matthew Link

2012-06-01T23:59:59.000Z

54

Area and power-efficient innovative congestion-aware Network-on-Chip architecture  

Science Conference Proceedings (OSTI)

This paper proposes a novel Network-on-Chip architecture that not only enhances network transmission performance while maintaining a feasible implementation cost, but also provides a power-efficient solution for interconnection network scenarios. Diagonally-linked ... Keywords: Area-efficient, Congestion-aware, Interconnection network, Network-on-Chip (NoC), Power-efficient

Chifeng Wang; Wen-Hsiang Hu; Seung Eun Lee; Nader Bagherzadeh

2011-01-01T23:59:59.000Z

55

A MIMO-OFDM Testbed for Wireless Local Area Networks  

E-Print Network (OSTI)

This paper describes the design steps and final implementation of a MIMO OFDM prototype platform developed to enhance the performance of wireless LAN standards such as HiperLAN/2 and 802.11, using multiple transmit and multiple receive antennas. We present the design methodology, including cross-validation of the Matlab, C++ and VHDL components, and the final demonstrator architecture. We highlight the increased measured performance of the MIMO testbed over the singleantenna system.

Albert Guillen i F abregas; Maxime Guillaud; Giuseppe Caire; Karine Gosse; Stephanie Rouquette; Alexandre Ribeiro Dias; Philippe Bernardin; Re Ribeiro Dias; Xavier Miet; Jean-Marc Conrat; et aal.; Yann Toutain; Alain Peden; Zaiqing Li

2005-01-01T23:59:59.000Z

56

CLL: A Cryptographic Link Layer for Local Area Networks  

Science Conference Proceedings (OSTI)

Ethernet and IP form the basis of the vast majority of LAN installations. But these protocols do not provide comprehensive security mechanisms, and thus give way for a plethora of attack scenarios. In this paper, we introduce a layer 2/3 security extension ...

Yves Igor Jerschow; Christian Lochert; Björn Scheuermann; Martin Mauve

2008-09-01T23:59:59.000Z

57

Vehicular Ad Hoc Networks: A New Challenge for Localization-Based Systems  

Science Conference Proceedings (OSTI)

A new kind of ad hoc network is hitting the streets: Vehicular Ad Hoc Networks (VANets). In these networks, vehicles communicate with each other and possibly with a roadside infrastructure to provide a long list of applications varying from transit safety ... Keywords: Data Fusion, Localization, Vehicular Networks

Azzedine Boukerche; Horacio A. B. F. Oliveira; Eduardo F. Nakamura; Antonio A. F. Loureiro

2008-07-01T23:59:59.000Z

58

An experiment of the life support network for elderly people living in a rural area  

Science Conference Proceedings (OSTI)

In order to provide comfortable and safety life for every people in the world, information technologies will be useful in a rural area as well as in a metropolitan area. This paper proposes a new concept of Life Support Network (LSN) for elderly people ... Keywords: healthcare system, information network, information system, life support system, quality of life, safety network, telemedicine, welfare system

Jun Sasaki; Bayme Abaydulla; Keizo Yamada; Michiru Tanaka; Yutaka Funyu

2007-11-01T23:59:59.000Z

59

Design and implementation of a Linux SCSI target for storage area networks  

Science Conference Proceedings (OSTI)

This paper describes the architecture of a set of kernel components for developing and testing storage area network transport protocols under Linux. This software is intended for several uses: as a general prototype for network transport protocol development; ... Keywords: SCSI, iSCSI, storage area networks

Ashish Palekar; Narendran Ganapathy; Anshul Chadda; Robert D. Russell

2001-11-01T23:59:59.000Z

60

Energy-aware Gateway Selection for Increasing the Lifetime of Wireless Body Area Sensor Networks  

Science Conference Proceedings (OSTI)

A Wireless Body Area Sensor Network (WBASN) is composed of a set of sensor nodes, placed on, near or within a human body. WBASNs opt to continuously monitor the health conditions of individuals under medical risk, e.g., elders and chronically ill people, ... Keywords: Energy harvesting, Gateway selection algorithm, Network lifetime, Selective engagement of nodes, Wireless Body Area Sensor Networks (WBASN)

Cuneyt Bayilmis; Mohamed Younis

2012-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

An approach for location area planning in a personal communication services network (PCSN)  

Science Conference Proceedings (OSTI)

This paper deals with an approach for planning location areas (LAs) in a personal communication services network (PCSN) to be overlaid on an existing wired network. Given the average speed of mobile terminals, the number of mobile switching centers (MSCs), ... Keywords: CMRs, Call-to-mobility ratios, LA, LU, PCSN, cost optimization, heuristic, location area, location update, paging, personal communication services network

P. S. Bhattacharjee; D. Saha; A. Mukherjee

2004-07-01T23:59:59.000Z

62

Daytime Local Circulations and Their Interactions in the Seoul Metropolitan Area  

Science Conference Proceedings (OSTI)

Daytime local circulations and their interactions in the Seoul, South Korea, metropolitan area are investigated using a high-resolution mesoscale model. It is found that the urban-breeze circulation interacts strongly with other local circulations,...

Young-Hee Ryu; Jong-Jin Baik

2013-04-01T23:59:59.000Z

63

Original paper: ZigBee-based wireless sensor network localization for cattle monitoring in grazing fields  

Science Conference Proceedings (OSTI)

This paper presents the design of a localization scheme in wireless sensor networks (WSN) for cattle monitoring applications in grazing fields. No additional hardware was required for distance estimation since they were performed using the link quality ... Keywords: Cattle monitoring, Energy-efficient, Localization, Low-cost, Wireless sensor networks, ZigBee

Juan Ignacio Huircán; Carlos Muñoz; Héctor Young; Ludwig Von Dossow; Jaime Bustos; Gabriel Vivallo; Marcelo Toneatti

2010-11-01T23:59:59.000Z

64

DLS: A dynamic local stitching mechanism to rectify transmitting path fragments in wireless sensor networks  

Science Conference Proceedings (OSTI)

In this paper, a pair of novel rectification algorithms (greedy negative pressure push algorithm and dynamic local stitching algorithm) is proposed to cooperatively repair broken transmitting paths in Wireless Sensor Networks. Our approach is to overcome ... Keywords: Data transmitting integrality, Dynamic local stitching algorithm, Fault tolerance, Wireless sensor networks

Ting Yang; Yugeng Sun; Javid Taheri; Albert Y. Zomaya

2013-01-01T23:59:59.000Z

65

Regional Resource Area Mapping In Nevada Using The Usarray Seismic Network  

Open Energy Info (EERE)

Regional Resource Area Mapping In Nevada Using The Usarray Seismic Network Regional Resource Area Mapping In Nevada Using The Usarray Seismic Network Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Regional Resource Area Mapping In Nevada Using The Usarray Seismic Network Details Activities (4) Areas (4) Regions (0) Abstract: The Earthscope Transportable Array (TA) seismic network is a significant new development for regional seismic velocity modeling and potential geothermal resource development. While very sparse compared to exploration scale applications, this network nevertheless affords regional modelers with unprecedented resolution and uniformity of coverage. The network is funded by the National Science Foundation through a major earth sciences initiative called Earthscope (www.earthscope.org). The network is

66

IEEE P802.15 Wireless Personal Area Networks  

Science Conference Proceedings (OSTI)

... and L2CAP protocols used above the RF channel. ... time reference tref erence until the start of a ... further assumptions on the network topology and the ...

2001-04-04T23:59:59.000Z

67

Wide area network monitoring system for HEP experiments at Fermilab  

SciTech Connect

Large, distributed High Energy Physics (HEP) collaborations, such as D0, CDF and US-CMS, depend on stable and robust network paths between major world research centers. The evolving emphasis on data and compute Grids increases the reliance on network performance. Fermilab's experimental groups and network support personnel identified a critical need for WAN monitoring to ensure the quality and efficient utilization of such network paths. This has led to the development of the Network Monitoring system we will present in this paper. The system evolved from the IEPM-BW project, started at SLAC three years ago. At Fermilab this system has developed into a fully functional infrastructure with bi-directional active network probes and path characterizations. It is based on the Iperf achievable throughput tool, Ping and Synack to test ICMP/TCP connectivity. It uses Pipechar and Traceroute to test, compare and report hop-by-hop network path characterization. It also measures real file transfer performance by BBFTP and GridFTP. The Monitoring system has an extensive web-interface and all the data is available through standalone SOAP web services or by a MonaLISA client. Also in this paper we will present a case study of network path asymmetry and abnormal performance between FNAL and SDSC, which was discovered and resolved by utilizing the Network Monitoring system.

Grigoriev, Maxim; /Fermilab; Cottrell, Les; Logg, Connie; /SLAC

2004-12-01T23:59:59.000Z

68

Design and development of Ethernet-based storage area network protocol  

Science Conference Proceedings (OSTI)

In response to the trend of rapidly growing volume of and increasingly critical role played by data storage, there is a strong demand to share storage over network. In this paper, we present an Ethernet-based storage area network protocol, called HyperSCSI. ... Keywords: Ethernet, HyperSCSI, Network Storage, Protocol, SAN

Wilson Yong Hong Wang; Heng Ngi Yeo; Yao Long Zhu; Tow Chong Chong; Teck Yoong Chai; Luying Zhou; Jit Bitwas

2006-05-01T23:59:59.000Z

69

Secure Broadcast with One-Time Signatures in Controller Area Networks  

Science Conference Proceedings (OSTI)

Broadcast authentication in Controller Area Networks CAN is subject to real time constraints that are hard to satisfy by expensive public key primitives. For this purpose the authors study here the use of one-time signatures which can be built on the ... Keywords: Authentication, Broadcast, Controller Area Networks CAN, One-Time Signatures, S12

Bogdan Groza, Pal-Stefan Murvay

2013-07-01T23:59:59.000Z

70

Adapting Cognitive Radio Technology for Low-Power Wireless Personal Area Network Devices  

Science Conference Proceedings (OSTI)

The application of wireless personal area network (WPAN) and simple point-to-point wireless communication devices has increased drastically both in private household and in our workspaces in general over the last decade. Combined with the fact that the ... Keywords: Cognitive radio, Dynamic spectrum access, Low-power, Medium access control, RFIC, Transceiver architecture, Wireless personal area network

John Rohde; Thomas Skjødeberg Toftegaard

2011-05-01T23:59:59.000Z

71

Energy comparison and optimization of wireless body-area network technologies  

Science Conference Proceedings (OSTI)

Wireless body-area networks (WBANs) have revolutionized the way mobile and wearable computers communicate with their users and I/O devices. We investigate an energy-efficient wireless device driver for low-duty peripherals, sensors and other I/O devices ... Keywords: energy-efficient design, power consumption, wireless body-area network

Le Yan; Lin Zhong; Niraj K. Jha

2007-06-01T23:59:59.000Z

72

A cluster-based key agreement scheme using keyed hashing for Body Area Networks  

Science Conference Proceedings (OSTI)

In recent years, Body Area Networks (BANs) have gained immense popularity in the domain of healthcare as well as monitoring of soldiers in the battlefield. Security of a BAN is inevitable as we secure the lives of soldiers and patients. In this paper, ... Keywords: Body Area Network, Electrocardiogram, H-sensors, Hash-based Message Authentication Code (HMAC), L-sensors, Physiological values

Aftab Ali, Sarah Irum, Firdous Kausar, Farrukh Aslam Khan

2013-09-01T23:59:59.000Z

73

A Generic Framework for Cross-Layer Optimisation in Wireless Personal Area Networks  

Science Conference Proceedings (OSTI)

Wireless Personal Area Networking (WPAN) is introduced as a new concept for next generation wireless systems. WPANs are short-range wireless systems operating in the direct surrounding of the user. A reference architecture for short-range wireless communications ... Keywords: cross-layer optimisation, wireless personal area networks

Carl Wijting; Ramjee Prasad

2004-04-01T23:59:59.000Z

74

Artificial Neural Network estimation of soil erosion and nutrient concentrations in runoff from land application areas  

Science Conference Proceedings (OSTI)

The transport of sediment and nutrients from land application areas is an environmental concern. New methods are needed for estimating soil and nutrient concentrations of runoff from cropland areas on which manure is applied. Artificial Neural Networks ... Keywords: Artificial Neural Network (ANN), Land application, Manure runoff, Nitrogen, Nutrient losses, Phosphorus, Soil erosion, Water quality

Minyoung Kim; John E. Gilley

2008-12-01T23:59:59.000Z

75

Oblivious routing for fat-tree based system area networks with uncertain traffic demands  

Science Conference Proceedings (OSTI)

Fat-tree based system area networks have been widely adopted in high performance computing clusters. In such systems, the routing is often deterministic and the traffic demand is usually uncertain and changing. In this paper, we study routing performance ... Keywords: fat-tree, oblivious routing, system area networks

Xin Yuan; Wickus Nienaber; Zhenhai Duan; Rami Melhem

2007-06-01T23:59:59.000Z

76

Localization and sensing applications in the Pushpin Computer Network  

E-Print Network (OSTI)

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

Broxton, Michael Joseph

2005-01-01T23:59:59.000Z

77

Towards optimal event detection and localization in acyclic flow networks  

Science Conference Proceedings (OSTI)

Acyclic flow networks, present in many infrastructures of national importance (e.g., oil & gas and water distribution systems), have been attracting immense research interest. Existing solutions for detecting and locating attacks against these infrastructures, ...

Mahima Agumbe Suresh; Radu Stoleru; Ron Denton; Emily Zechman; Basem Shihada

2012-01-01T23:59:59.000Z

78

SeRLoc: secure range-independent localization for wireless sensor networks  

Science Conference Proceedings (OSTI)

In many applications of wireless sensor networks (WSN), sensors are deployed un-tethered in hostile environments. For location-aware WSN applications, it is essential to ensure that sensors can determine their location, even in the presence of malicious ... Keywords: range-independent, secure localization, wireless sensor networks

Loukas Lazos; Radha Poovendran

2004-10-01T23:59:59.000Z

79

Dynamic fine-grained localization in Ad-Hoc networks of sensors  

Science Conference Proceedings (OSTI)

The recent advances in radio and em beddedsystem technologies have enabled the proliferation of wireless microsensor networks. Such wirelessly connected sensors are released in many diverse environments to perform various monitoring tasks. In many such ... Keywords: localization, location discovery, wireless sensor networks

Andreas Savvides; Chih-Chieh Han; Mani B. Strivastava

2001-07-01T23:59:59.000Z

80

Sandia`s network for Supercomputer `96: Linking supercomputers in a wide area Asynchronous Transfer Mode (ATM) network  

Science Conference Proceedings (OSTI)

The advanced networking department at Sandia National Laboratories has used the annual Supercomputing conference sponsored by the IEEE and ACM for the past several years as a forum to demonstrate and focus communication and networking developments. At Supercomputing 96, for the first time, Sandia National Laboratories, Los Alamos National Laboratory, and Lawrence Livermore National Laboratory combined their Supercomputing 96 activities within a single research booth under the ASO banner. Sandia provided the network design and coordinated the networking activities within the booth. At Supercomputing 96, Sandia elected: to demonstrate wide area network connected Massively Parallel Processors, to demonstrate the functionality and capability of Sandia`s new edge architecture, to demonstrate inter-continental collaboration tools, and to demonstrate ATM video capabilities. This paper documents those accomplishments, discusses the details of their implementation, and describes how these demonstrations support Sandia`s overall strategies in ATM networking.

Pratt, T.J.; Martinez, L.G.; Vahle, M.O. [and others

1997-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

Fundamental limits of wideband localization: part II: cooperative networks  

Science Conference Proceedings (OSTI)

The availability of position information is of great importance in many commercial, governmental, and military applications. Localization is commonly accomplished through the use of radio communication between mobile devices (agents) and fixed infrastructure ... Keywords: Cramér-rao bound (CRB), cooperative localization, equivalent Fisher information (EFI), information inequality, ranging information (RI), squared position error bound (SPEB)

Yuan Shen; Henk Wymeersch; Moe Z. Win

2010-10-01T23:59:59.000Z

82

Analyzing local strategies for energy-efficient networking  

Science Conference Proceedings (OSTI)

Power management strategies that allow network infrastructures to achieve advanced functionalities with limited energy budget are expected to induce significant cost savings and positive effects on the environment, reducing Green House Gases (GHG) emissions. ... Keywords: adaptive link rate, energy-efficiency, low power idle, power consumption, sleep mode

Sergio Ricciardi; Davide Careglio; Ugo Fiore; Francesco Palmieri; Germán Santos-Boada; Josep Solé-Pareta

2011-05-01T23:59:59.000Z

83

A Survey on Localization for Mobile Wireless Sensor Networks  

E-Print Network (OSTI)

. Koutsoukos Institute for Software Integrated Systems (ISIS) Department of Electrical Engineering and Computer focus on mobile sensor networks, and we have even seen the development of small-profile sensing devices as having several challenges that needed to be overcome, including connectivity, coverage, and energy

Koutsoukos, Xenofon D.

84

On wormhole attacks in underwater sensor networks: A two-tier localization approach  

E-Print Network (OSTI)

Under-Water Sensor Network (UWSN) is a novel networking paradigm to explore the uninhabited oceans. However, the characteristics of this new network, such as huge propagation delay, floating node mobility, and limited acoustic link capacity, are significantly different from land-based sensor networks. In this paper we show that underwater denial-of-service attack imposes great threats to any UWSN. Without proper countermeasures, underwater sensor networking is a mission impossible. We propose a localization based approach to answer the challenge. In our design, DUB and DDB, a pair of efficient single-round distance measuring schemes, are critical building blocks to realize our approach inspite of constrained node capability and floating node mobility. In addition, to cope with low/medium node mobiltiy, we propose a two-tier localization scheme to identify short-range wormholes instantly, and long-haul wormholes within a limited latency. Our simulation and implementation confirm the effectiveness of our design. I.

Jiejun Kong; Zhengrong Ji; Weichao Wang; Mario Gerla; Rajive Bagrodia

2004-01-01T23:59:59.000Z

85

Localized Pipeline Encroachment Detector System Using Sensor Network  

E-Print Network (OSTI)

Detection of encroachment on pipeline right-of-way is important for pipeline safety. An effective system can provide on-time warning while reducing the probability of false alarms. There are a number of industry and academic developments to tackle this problem. This thesis is the first to study the use of a wireless sensor network for pipeline right-of-way encroachment detection. In the proposed method, each sensor node in the network is responsible for detecting and transmitting vibration signals caused by encroachment activities to a base station (computer center). The base station monitors and analyzes the signals. If an encroachment activity is detected, the base station will send a warning signal. We describe such a platform with hardware configuration and software controls, and the results demonstrate that the platform is able to report our preliminary experiments in detecting digging activities by a tiller in the natural and automotive noise.

Ou, Xiaoxi 1986-

2011-08-01T23:59:59.000Z

86

Architecture for ultra-low power multi-channel transmitters for Body Area Networks using RF resonators  

E-Print Network (OSTI)

Body Area Networks (BANs) are gaining prominence for their use in medical and sports monitoring. This thesis develops the specifications of a ultra-low power 2.4GHz transmitter for use in a Body Area Networks, taking ...

Paidimarri, Arun

2011-01-01T23:59:59.000Z

87

Field Area Network Demo - October 2013 Vendor Forum Presentations (Palo Alto)  

Science Conference Proceedings (OSTI)

The field area network (FAN) concept is emerging as a ubiquitous, high-performance, secure, reliable network providing "last mile" backhaul service for distribution supervisory control and data acquisition (SCADA) and advanced metering infrastructure (AMI) systems, as well as network access services for advanced distribution management and automation, distributed energy resources, and any future smart grid applications requiring connectivity from within and beyond the distribution ...

2013-11-13T23:59:59.000Z

88

Field Area Network Demo - May 2013 Advisors Meeting: Presentations and Minutes (United Illuminating)  

Science Conference Proceedings (OSTI)

The field area network (FAN) concept is emerging as a ubiquitous, high-performance, secure, reliable network providing "last mile" acquisition (SCADA) and advanced metering infrastructure (AMI)systems, as well as network access services for advanced distribution management and automation, distributed energy resources, and any future smart grid applications requiring connectivity from within and beyond the distribution substation.One objective of this project is to establish ...

2013-11-13T23:59:59.000Z

89

LHCNet: Wide Area Networking and Collaborative Systems for HEP  

SciTech Connect

This proposal presents the status and progress in 2006-7, and the technical and financial plans for 2008-2010 for the US LHCNet transatlantic network supporting U.S. participation in the LHC physics program. US LHCNet provides transatlantic connections of the Tier1 computing facilities at Fermilab and Brookhaven with the Tier0 and Tier1 facilities at CERN as well as Tier1s elsewhere in Europe and Asia. Together with ESnet, Internet2, the GEANT pan-European network, and NSF’s UltraLight project, US LHCNet also supports connections between the Tier2 centers (where most of the analysis of the data will take place, starting this year) and the Tier1s as needed.See report

Newman, H.B,

2007-08-20T23:59:59.000Z

90

Modeling Effects of Physical Factors on Controller Area Network in Cyber-physical Systems  

Science Conference Proceedings (OSTI)

Cyber-physical systems (CPS) are becoming a promising research field to integrate the computing components, the physical processes, and the communication networks. A primary challenge in designing CPS is to understand the effect of physical factors on ... Keywords: Cyber-physical systems (CPS), Controller Area Network (CAN), performance analysis, temperature, electromagnetic interference

Bo Shen, Xingshe Zhou, Ru Wang

2013-08-01T23:59:59.000Z

91

UDT: UDP-based data transfer for high-speed wide area networks  

Science Conference Proceedings (OSTI)

In this paper, we summarize our work on the UDT high performance data transport protocol over the past four years. UDT was designed to effectively utilize the rapidly emerging high-speed wide area optical networks. It is built on top of UDP with reliability ... Keywords: Congestion control, Design and implementation, High-speed networks, Transport protocol

Yunhong Gu; Robert L. Grossman

2007-05-01T23:59:59.000Z

92

Application Layer Definition and Analyses of Controller Area Network Bus for Wire Harness Assembly Machine  

Science Conference Proceedings (OSTI)

With the feature of multi-master bus access, nondestructive contention-based arbitration and flexible configuration, Controller Area Network (CAN) bus is applied into the control system of Wire Harness Assembly Machine (WHAM). To accomplish desired goal, ...

Hui Guo; Ying Jiang

2006-11-01T23:59:59.000Z

93

SDG&E Customers Can Connect Home Area Network Devices With Smart...  

Open Energy Info (EERE)

SDG&E Customers Can Connect Home Area Network Devices With Smart Meters Home > Groups > Utility Rate Graham7781's picture Submitted by Graham7781(1992) Super contributor 16...

94

Timing Synchronization and Node Localization in Wireless Sensor Networks: Efficient Estimation Approaches and Performance Bounds  

E-Print Network (OSTI)

Wireless sensor networks (WSNs) consist of a large number of sensor nodes, capable of on-board sensing and data processing, that are employed to observe some phenomenon of interest. With their desirable properties of flexible deployment, resistance to harsh environment and lower implementation cost, WSNs envisage a plethora of applications in diverse areas such as industrial process control, battle- field surveillance, health monitoring, and target localization and tracking. Much of the sensing and communication paradigm in WSNs involves ensuring power efficient transmission and finding scalable algorithms that can deliver the desired performance objectives while minimizing overall energy utilization. Since power is primarily consumed in radio transmissions delivering timing information, clock synchronization represents an indispensable requirement to boost network lifetime. This dissertation focuses on deriving efficient estimators and performance bounds for the clock parameters in a classical frequentist inference approach as well as in a Bayesian estimation framework. A unified approach to the maximum likelihood (ML) estimation of clock offset is presented for different network delay distributions. This constitutes an analytical alternative to prior works which rely on a graphical maximization of the likelihood function. In order to capture the imperfections in node oscillators, which may render a time-varying nature to the clock offset, a novel Bayesian approach to the clock offset estimation is proposed by using factor graphs. Message passing using the max-product algorithm yields an exact expression for the Bayesian inference problem. This extends the current literature to cases where the clock offset is not deterministic, but is in fact a random process. A natural extension of pairwise synchronization is to develop algorithms for the more challenging case of network-wide synchronization. Assuming exponentially distributed random delays, a network-wide clock synchronization algorithm is proposed using a factor graph representation of the network. Message passing using the max- product algorithm is adopted to derive the update rules for the proposed iterative procedure. A closed form solution is obtained for each node's belief about its clock offset at each iteration. Identifying the close connections between the problems of node localization and clock synchronization, we also address in this dissertation the problem of joint estimation of an unknown node's location and clock parameters by incorporating the effect of imperfections in node oscillators. In order to alleviate the computational complexity associated with the optimal maximum a-posteriori estimator, two iterative approaches are proposed as simpler alternatives. The first approach utilizes an Expectation-Maximization (EM) based algorithm which iteratively estimates the clock parameters and the location of the unknown node. The EM algorithm is further simplified by a non-linear processing of the data to obtain a closed form solution of the location estimation problem using the least squares (LS) approach. The performance of the estimation algorithms is benchmarked by deriving the Hybrid Cramer-Rao lower bound (HCRB) on the mean square error (MSE) of the estimators. We also derive theoretical lower bounds on the MSE of an estimator in a classical frequentist inference approach as well as in a Bayesian estimation framework when the likelihood function is an arbitrary member of the exponential family. The lower bounds not only serve to compare various estimators in our work, but can also be useful in their own right in parameter estimation theory.

Ahmad, Aitzaz 1984-

2012-12-01T23:59:59.000Z

95

The impact of simulation area shape on the performance of ad hoc networks  

Science Conference Proceedings (OSTI)

The shape of the simulation area is critical in simulations because average hops of source to destination will change in different shapes. We measure one reliability metric (connectivity) and five efficiency metrics (round trip time, drop rate, energy ... Keywords: ad hoc network, performance, simulation area

Heng Luo; David Laurenson; Aihuang Guo; Hui Li

2009-09-01T23:59:59.000Z

96

Embedded local area public/personal service system based on RFID system integration  

Science Conference Proceedings (OSTI)

In this paper, an Embedded Local Area Public/Personal Service System (ELAPSS) that integrates the existed RFID system is proposed. This system includes Embedded Service Middleware Platform, and End User RFID Device/Tag. ELAPSS is modulated and can be ... Keywords: RFID, embedded, personal service, system integration

Ming-shen Jian; Kuen Shiuh Yang; Chung-Lun Lee; Nan-Yuan Huang

2008-07-01T23:59:59.000Z

97

Robotic localization of hostile networked radio sources with a directional antenna  

E-Print Network (OSTI)

One of the distinguishing characteristics of hostile networked radio sources (e.g., enemy sensor network nodes), is that only physical layer information and limited medium access control (MAC) layer information of the network is observable. We propose a scheme to localize hostile networked radio sources based on the radio signal strength and communication protocol pattern analysis using a mobile robot with a directional antenna. We integrate a Particle Filter algorithm with a new sensing model which is built on a directional antenna model and Carrier Sense Multiple Access (CSMA)-based MAC protocol model. we model and analyze the channel idle probability and busy collision probability as a function of the number of radio sources in the CSMA protocol modeling. Based on the sensing model, we propose a particle-filter-based scheme to simultaneously estimate the number and the positions of networked radio sources. We provide a localization scheme based on the method of steepest descent for the purpose of performance comparison. Simulation results demonstrate that our proposed localization scheme has a better success rate than the scheme based on the steepest descent at different tolerant distances.

Hu, Qiang

2005-12-01T23:59:59.000Z

98

Clustering with overlap for genetic interaction networks via local search optimization  

Science Conference Proceedings (OSTI)

Algorithms for detection of modules in genetics interaction networks, while often identifying new models of functional modular organization between genes, have been limited to the output of disjoint, non-overlapping modules, while natural overlapping ... Keywords: genetic interactions, graph clustering, local search

Joseph Whitney; Judice Koh; Michael Costanzo; Grant Brown; Charles Boone; Michael Brudno

2011-09-01T23:59:59.000Z

99

A Local Model Networks Based Multivariable Long-Range Predictive Control Strategy for Thermal Power Plants  

Science Conference Proceedings (OSTI)

Load-cycling operation of thermal power plants leads to changes in operating point right across the whole operating range. This results in non-linear variations in most of the plant variables. This paper investigates methods to account for non-linearities ... Keywords: Constrained multivariable control, local model networks, long range predictive control, thermal power plant boiler

G. PRASAD; E. SWIDENBANK; B. W. HOGG

1998-10-01T23:59:59.000Z

100

LWOS: a localization method without on-body sensor in wireless sensor networks  

Science Conference Proceedings (OSTI)

In many applications of wireless sensor networks (WSNs), the location information of users is very important. In this paper we present a localization method without on-body sensor (LWOS). The basic idea is that when a person is standing between a pair ...

Shuangquan Wang; Ningjiang Chen; Xin Chen; Jie Yang; Jun Lu

2006-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

Trust-Assisted Anomaly Detection and Localization in Wireless Sensor Networks  

E-Print Network (OSTI)

for better bandwidth and energy efficiency. The trustworthiness of network links is utilized to design for many real-world applications such as critical infrastructure monitoring, scientific data gathering. Distributed approaches address this issue by encour- aging local decision making: for example, nodes can rely

Baras, John S.

102

Predicting the performance of local seismic networks using Matlab and Google Earth.  

Science Conference Proceedings (OSTI)

We have used Matlab and Google Earth to construct a prototype application for modeling the performance of local seismic networks for monitoring small, contained explosions. Published equations based on refraction experiments provide estimates of peak ground velocities as a function of event distance and charge weight. Matlab routines implement these relations to calculate the amplitudes across a network of stations from sources distributed over a geographic grid. The amplitudes are then compared to ambient noise levels at the stations, and scaled to determine the smallest yield that could be detected at each source location by a specified minimum number of stations. We use Google Earth as the primary user interface, both for positioning the stations of a hypothetical local network, and for displaying the resulting detection threshold contours.

Chael, Eric Paul

2009-11-01T23:59:59.000Z

103

Advanced Metering Infrastructure (AMI)/Home Area Network (HAN) Economic Benefits Analysis for Utilities  

Science Conference Proceedings (OSTI)

This report develops a framework for quantifying the benefits attributable to Home Area Network (HAN) technologies in the context of demand response. A HAN is a device designed to monitor energy use, distill user-consumption information (such as recent real-time energy usage), and perform appliance management functions within a home. The HAN central unit typically acts as a gateway between the in-home network (which controls appliances) and external entities such as the electric utility. Each piece of ho...

2009-12-23T23:59:59.000Z

104

A Framework for Assessing the Net Benefits of Home Area Networks to Enable Demand Response  

Science Conference Proceedings (OSTI)

EPRI conducted an analysis to provide insight into the value of a Home Area Network (HAN) to a household. A HAN accommodates the flow of information to and from network nodes each associated with a device or element of the households electric system and devices. This collectivization of household devices facilitates managing the whole house load under demand response program protocols, and provides opportunities for additional payments to the household. EPRI conducted an analysis to see if the added stre...

2010-12-31T23:59:59.000Z

105

SDG&E Customers Can Connect Home Area Network Devices With Smart Meters |  

Open Energy Info (EERE)

SDG&E Customers Can Connect Home Area Network Devices With Smart Meters SDG&E Customers Can Connect Home Area Network Devices With Smart Meters Home > Groups > Utility Rate Graham7781's picture Submitted by Graham7781(2002) Super contributor 16 January, 2013 - 11:09 OpenEI San Diego Gas and Electric Smart Meters Smartgrid article reposted from Smartgrid.gov SAN DIEGO, Jan. 10, 2013 - San Diego Gas & Electric (SDG&E) customers can now purchase and install home area network devices to see how much energy they are using in near real-time and help identify high energy use appliances. With in-home energy display devices connected to their electric smart meters, SDG&E customers have access to a new tool to help them make smart energy consumption decisions to reduce their overall energy usage and costs. SDG&E has tested several new in-home energy display devices and customers

106

Multi-channel reliability and spectrum usage in real homes: empirical studies for home-area sensor networks  

Science Conference Proceedings (OSTI)

Home area networks (HANs) consisting of wireless sensors have emerged as the enabling technology for important applications such as smart energy. These applications impose unique QoS constraints, requiring low data rates but high network reliability ...

Mo Sha; Gregory Hackmann; Chenyang Lu

2011-06-01T23:59:59.000Z

107

3D Underwater Sensor Network Localization Amin Y. Teymorian, Student Member, IEEE, Wei Cheng, Student Member, IEEE,  

E-Print Network (OSTI)

3D Underwater Sensor Network Localization Amin Y. Teymorian, Student Member, IEEE, Wei Cheng, and Zexin Lu, Member, IEEE Abstract--We transform the 3D underwater sensor network (USN) localization termed as Underwater Sensor Positioning (USP). Through extensive simulations, we show that USP has

Cheng, Xiuzhen "Susan"

108

A two-objective evolutionary approach based on topological constraints for node localization in wireless sensor networks  

Science Conference Proceedings (OSTI)

Abstract: To know the location of nodes plays an important role in many current and envisioned wireless sensor network applications. In this framework, we consider the problem of estimating the locations of all the nodes of a network, based on noisy ... Keywords: Multiobjective evolutionary algorithms, Node localization, Range measurements, Stochastic optimization, Wireless sensor networks

Massimo Vecchio; Roberto López-Valcarce; Francesco Marcelloni

2012-07-01T23:59:59.000Z

109

Localized Bumps of Activity Sustained by Inhibition in a Two-Layer Thalamic Network  

E-Print Network (OSTI)

. Based on head direction experiments in rats, the existence of localized bumps of thalamic activity has been proposed. We computationally demonstrate the existence of a novel class of localized bump solutions in a two-layer conductancebased thalamic network and analyze the mechanisms behind these stable patterns. In contrast to previous models of bump activity, here inhibition plays a crucial role in initially spreading neuronal ring and in subsequently sustaining it. In our model, we incorporate local strong, fast GABAA inhibition and diuse weak, slow GABAB inhibition, based on previous biophysical experiments. These forms of inhibition contribute in dierent, yet complementary, ways to the observed pattern formation. Keywords: localized activity, head direction cells, thalamus, conductance-based model, synaptic coupling Abbreviations: GABA { -aminobutyric acid; HD { head direction; PoS { postsubiculum; ATN { anterior thalamic nuclei; AD { anterior dorsal thalamic nucleus; TC { t...

Jonathan Rubin; David Terman; Carson Chow

2001-01-01T23:59:59.000Z

110

Distributed control of hexapod wall climbing robot implementing Controller Area Network (CAN)  

Science Conference Proceedings (OSTI)

Service robots have been used in tasks that require navigation of horizontal or near horizontal surfaces. Some applications require service robots that are capable of moving along a vertical plane e.g., wall painting, window washing, non-destructive ... Keywords: CAN, biomechatronics, controller area networks, distributed control, hexapod robots, mechatronics, robot actuators, robot design, robot safety, robot sensors, service robots, wall climbing robots

Nkgatho Sylvester Tale; Glen Bright; W. L. Xu

2005-07-01T23:59:59.000Z

111

NISTIR 7581, System and Network Security Acronyms and ...  

Science Conference Proceedings (OSTI)

... LAN local area network LCD liquid crystal display LDA local delivery agent LDAP Lightweight Directory Access Protocol LED light emitting diode ...

2012-03-01T23:59:59.000Z

112

A study on the security, the performance and the penetration of Wi-Fi networks in a Greek urban area  

Science Conference Proceedings (OSTI)

This paper presents a study on the expansion of urbanWi-Fi networks and the degree of users' awareness about their characteristics. It involves an experiment contacted at the area of Serres, a Greek city of around 70,000 inhabitants. The findings revealed ... Keywords: Wi-Fi networks usage, urban networks, war driving, wireless security

Savvas Mousionis; Alex Vakaloudis; Constantinos Hilas

2011-06-01T23:59:59.000Z

113

Puget Sound Area Electric Reliability Plan. Appendix B : Local Generation Evaluation : Draft Environmental Impact Statement.  

SciTech Connect

The information and data contained in this Appendix was extracted from numerous sources. The principle sources used for technical data were Bonneville Power Administration's 1990 Resource Program along with its technical appendix, and Chapter 8 of the Draft 1991 Northwest Conservation and Electric Power Plan. All cost data is reported 1988 dollars unless otherwise noted. This information was supplemented by other data developed by Puget Sound utilities who participated on the Local Generation Team. Identifying generating resources available to the Puget Sound area involved a five step process: (1) listing all possible resources that might contribute power to the Puget Sound area, (2) characterizing the technology/resource status, cost and operating characteristics of these resources, (3) identifying exclusion criteria based on the needs of the overall Puget Sound Electric Reliability Plan study, (4) applying these criteria to the list of resources, and (5) summarizing of the costs and characteristics of the final list of resources. 15 refs., 20 tabs.

United States. Bonneville Power Administration.

1991-09-01T23:59:59.000Z

114

Puget Sound Area Electric Reliability Plan. Appendix B : Local Generation Evaluation : Draft Environmental Impact Statement.  

DOE Green Energy (OSTI)

The information and data contained in this Appendix was extracted from numerous sources. The principle sources used for technical data were Bonneville Power Administration's 1990 Resource Program along with its technical appendix, and Chapter 8 of the Draft 1991 Northwest Conservation and Electric Power Plan. All cost data is reported 1988 dollars unless otherwise noted. This information was supplemented by other data developed by Puget Sound utilities who participated on the Local Generation Team. Identifying generating resources available to the Puget Sound area involved a five step process: (1) listing all possible resources that might contribute power to the Puget Sound area, (2) characterizing the technology/resource status, cost and operating characteristics of these resources, (3) identifying exclusion criteria based on the needs of the overall Puget Sound Electric Reliability Plan study, (4) applying these criteria to the list of resources, and (5) summarizing of the costs and characteristics of the final list of resources. 15 refs., 20 tabs.

United States. Bonneville Power Administration.

1991-09-01T23:59:59.000Z

115

Security requirements and recommendations for Advanced Meters and Home Area Networks  

Science Conference Proceedings (OSTI)

This report describes the testing required to ensure the proper long-term functioning of an installed home area network (HAN) at a utility customers premises. The document investigates the test parameters that should be evaluated after a utility’s installation of a HAN system at its customers premises to ensure statistically reliable performance for the life of the system. To aid utilities in their evaluations, this report provides the theoretical basis for the development of installation test procedures...

2009-06-30T23:59:59.000Z

116

Cellular telephone-based radiation sensor and wide-area detection network  

DOE Patents (OSTI)

A network of radiation detection instruments, each having a small solid state radiation sensor module integrated into a cellular phone for providing radiation detection data and analysis directly to a user. The sensor module includes a solid-state crystal bonded to an ASIC readout providing a low cost, low power, light weight compact instrument to detect and measure radiation energies in the local ambient radiation field. In particular, the photon energy, time of event, and location of the detection instrument at the time of detection is recorded for real time transmission to a central data collection/analysis system. The collected data from the entire network of radiation detection instruments are combined by intelligent correlation/analysis algorithms which map the background radiation and detect, identify and track radiation anomalies in the region.

Craig, William W. (Pittsburg, CA); Labov, Simon E. (Berkeley, CA)

2006-12-12T23:59:59.000Z

117

Communication and Energy Efficiency in Visual Sensor Networks for People Localization  

Science Conference Proceedings (OSTI)

This paper addresses the communication and energy efficiency in collaborative visual sensor networks (VSNs) for people localization, a challenging computer vision problem of its own. We focus on the design of a light-weight and energy efficient solution where people are localized based on distributed camera nodes integrating the so-called certainty map generated at each node, that records the target non-existence information within the camera s field of view. We first present a dynamic itinerary for certainty map integration where not only each sensor node transmits a very limited amount of data but that a limited number of camera nodes is involved. Then, we perform a comprehensive analytical study to evaluate communication and energy efficiency between different integration schemes, i.e., centralized and distributed integration. Based on results obtained from analytical study and real experiments, the distributed method shows effectiveness in detection accuracy as well as energy and bandwidth efficiency.

Karakaya, Mahmut [ORNL; Qi, Hairong [ORNL

2012-01-01T23:59:59.000Z

118

OUTLIER COMPENSATION IN SENSOR NETWORK SELF-LOCALIZATION VIA THE EM Joshua N. Ash, Randolph L. Moses  

E-Print Network (OSTI)

OUTLIER COMPENSATION IN SENSOR NETWORK SELF-LOCALIZATION VIA THE EM ALGORITHM Joshua N. Ash 43210 ABSTRACT Self-localization is an important component of distributed sensor systems. The presence- mates of the sensor locations [4]. Outliers are inherently handled by including a high variance

Moses, Randolph L.

119

Barriers to a Wide-Area Trusted Network Early Warning System For Electric  

E-Print Network (OSTI)

It is apparent that perturbations of the North American electric power grid follow the patterns and characteristics of Self Organized Critical (SOC) systems. Published studies show SOC systems exhibit statistical properties that may result in early warning systems predicting electric power instability and loss of reliability. However, in order for such an early warning system to exist, a trusted wide-area data network must collate information from disparate subsystems and compile that information into homogenous data records for input to a modeling system. This paper explores similarities between widearea trusted computer networks and the needs of a widearea trusted network early warning system for electric power instability. An analysis of commercial equipment used in power stations uncovers disparate access methods and protocols that inhibit interoperability, and yet that problem has been mitigated in computer networking. Recent advances lend hope that wide-area data collection and modeling of electric power system perturbations will be commonplace in the not to distant future. I. Modeling Disturbance Data The electric power grid can be modeled as a complex system of dynamic load and generation balances characterized by two types of stability. Steady-state stability describes the nominal balancing of relatively minor disturbances in load/generation fluctuations caused by normal start-up and shut-down events associated with the millions of appliances and equipment attached to the grid. Constraints on operating parameters – nominally voltage levels, current magnitudes and power flows – are used to achieve steady-state equilibrium where the generation input is matched to system losses and electrical outputs. Whereas, transient stability describes the power systems ability (or lack thereof) to absorb major disturbances and return to a relatively balanced steadystate. Load shedding, generation shedding, and regional

Paul W. Oman; Jeff Roberts

2002-01-01T23:59:59.000Z

120

Underwater Threat Source Localization: Processing Sensor Network TDOAs with a Terascale Optical Core Device  

Science Conference Proceedings (OSTI)

Revolutionary computing technologies are defined in terms of technological breakthroughs, which leapfrog over near-term projected advances in conventional hardware and software to produce paradigm shifts in computational science. For underwater threat source localization using information provided by a dynamical sensor network, one of the most promising computational advances builds upon the emergence of digital optical-core devices. In this article, we present initial results of sensor network calculations that focus on the concept of signal wavefront time-difference-of-arrival (TDOA). The corresponding algorithms are implemented on the EnLight processing platform recently introduced by Lenslet Laboratories. This tera-scale digital optical core processor is optimized for array operations, which it performs in a fixed-point-arithmetic architecture. Our results (i) illustrate the ability to reach the required accuracy in the TDOA computation, and (ii) demonstrate that a considerable speed-up can be achieved when using the EnLight 64a prototype processor as compared to a dual Intel XeonTM processor.

Barhen, Jacob [ORNL; Imam, Neena [ORNL

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

Modeling the Dynamics of Desakota Regions: Global - Local Nexus in the Taipei Metropolitan Area  

E-Print Network (OSTI)

Since the 1970s, Asia has experienced rapid urbanization processes, which are distinct from U.S. society, and the direction of Asian urbanization is more strongly affected by economic globalization. The desakota model, proposed by McGee and Ginsburg in 1991, focuses on how internal domestic and local forces drive the specific rural-urban transformation in Asia. However, the McGee-Ginsburg model does not emphasize the importance of globalization on Asian urbanization. To fill the gap, this study develops a GIS-based CA framework based on the desakota model to not only simulate the unique urbanization processes in Asia but also integrate the influence of globalization into Asian urban dynamics. Three approaches are developed in the CA simulation: 1) physical constraints and land-use classification from remotely sensed images in 1993, 2000, and 2008, are incorporated into micro-scale transformation; 2) population dynamics, shifts of economic activities, and foreign direct investment (FDIs), a representative of the impact of globalization, are applied for multi-scale interconnection; 3) the Monte Carlo mechanism is finally introduced to combine the above two approaches and implement the simulation process. The Taipei metropolitan area, a rapid urbanizing region that highly interacts with the global economy in Asia, is chosen to examine this model. The CA simulation model establishes a strong interaction between FDIs, an indicator representing impacts of globalization, and the dazzling Asian urban model. The combination of multi-scale economic factors and micro-scale land-use transformation also reveals how urban growth of the Taipei metropolis in recent years fits the characterization of the desakota model, and how desakota regions, the growth generators, interact with city cores. As a result, the research not only successfully links the influence of globalization with the desakota model and simulates urban dynamics of Asian cities but also provides scenarios of different FDI inputs for governments to better handle urban growth with global impacts under the deep economic recession since 2007.

Wu, Bing-Sheng

2009-08-01T23:59:59.000Z

122

Asymptotically optimal trade-off between local and global connectivity in wireless networks  

Science Conference Proceedings (OSTI)

We analyze large, random network topologies that arise in ad hoc or sensor networks. A fundamental requirement of communication in these systems is reachability, that is, to have a connected network topology. It is known, however, that the price for ... Keywords: Connectivity, Random wireless network topology, Scalability

András Faragó

2011-02-01T23:59:59.000Z

123

Evaluation of replacement protocols and modifications to TCP to enhance ASC Wide Area Network performance.  

SciTech Connect

Historically, TCP/IP has been the protocol suite used to transfer data throughout the Advanced Simulation and Computing (ASC) community. However, TCP was developed many years ago for an environment very different from the ASC Wide Area Network (WAN) of today. There have been numerous publications that hint of better performance if modifications were made to the TCP algorithms or a different protocol was used to transfer data across a high bandwidth, high delay WAN. Since Sandia National Laboratories wants to maximize the ASC WAN performance to support the Thor's Hammer supercomputer, there is strong interest in evaluating modifications to the TCP protocol and in evaluating alternatives to TCP, such as SCTP, to determine if they provide improved performance. Therefore, the goal of this project is to test, evaluate, compare, and report protocol technologies that enhance the performance of the ASC WAN.

Romero, Randy L. Jr.

2004-09-01T23:59:59.000Z

124

The Association of Bay Area Health Officials: Advancing Public Health through Regional Networks  

E-Print Network (OSTI)

Monterey  County,  which  also  joined  the  ABAHO  network  within   a  year  of  its   formation.    

Crawley, Adam Wade; Enanoria, Wayne TA

2012-01-01T23:59:59.000Z

125

MAC layer power management schemes for efficient energy- delay tradeoffs in wireless local area networks  

E-Print Network (OSTI)

power consumptions which are approximately standard for a specific devicepower consumption and thereby prolong the system lifetime of battery powered wireless devices,

Sarkar, Mahasweta

2006-01-01T23:59:59.000Z

126

LogP Quantified: The Case for LowOverhead Local Area Networks 16 Workstation  

E-Print Network (OSTI)

4000 5000 6000 7000 0 2000 4000 6000 8000 10000 Average UDP Round­trip Time (usec) User Data Payload 2000 4000 6000 8000 10000 Average UDP Round­trip Time (usec) User Data Payload Size (bytes) SS Sw. Enet

Anderson, Tom

127

On the design of a novel two-objective harmony search approach for distance- and connectivity-based localization in wireless sensor networks  

Science Conference Proceedings (OSTI)

In several wireless sensor network applications the availability of accurate nodes' location information is essential to make collected data meaningful. In this context, estimating the positions of all unknown-located nodes of the network based on noisy ... Keywords: Flip ambiguity, Harmony Search, Localization, Multi-objective, Wireless Sensor Networks

Diana Manjarres; Javier Del Ser; Sergio Gil-Lopez; Massimo Vecchio; Itziar Landa-Torres; Sancho Salcedo-Sanz; Roberto Lopez-Valcarce

2013-02-01T23:59:59.000Z

128

Robust Distributed Routing in Dynamical Networks - Part I: Locally Responsive Policies and Weak Resilience  

E-Print Network (OSTI)

Robustness of distributed routing policies is studied for dynamical networks, with respect to adversarial disturbances that reduce the link flow capacities. A dynamical network is modeled as a system of ordinary differential ...

Como, Giacomo

129

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...

130

Transmission Power Allocation for Cooperative Relay-BasedNeighborhood Area Networks for Smart Grid  

E-Print Network (OSTI)

Architecture for the Smart Grid, IEEE Network, vol. 25, no.to-Machine Communications in Smart Grid. IEEE CommunicationInfrastructure for Smart Grid. IEEE Network, vol. 25, no.5,

Kai, Ma; Guoqiang, Hu; Spanos, Costas

2013-01-01T23:59:59.000Z

131

Measuring air quality in city areas by vehicular wireless sensor networks  

Science Conference Proceedings (OSTI)

This paper considers a micro-climate monitoring scenario, which usually requires deploying a large number of sensor nodes to capture environmental information. By exploiting vehicular sensor networks (VSNs), it is possible to equip fewer nodes on cars ... Keywords: Micro-climate monitoring, Opportunistic communication, Pervasive computing, Vehicular sensor network, Wireless sensor network

Shu-Chiung Hu; You-Chiun Wang; Chiuan-Yu Huang; Yu-Chee Tseng

2011-11-01T23:59:59.000Z

132

Patterns of Local Circulation in the Itaipu Lake Area: Numerical Simulations of Lake Breeze  

Science Conference Proceedings (OSTI)

The lake-breeze circulation in the Itaipu region was investigated numerically using a nonhydrostatic version of the Topographic Vorticity Model. The area of study corresponds to a 100 km × 180 km rectangle, located on the Brazil–Paraguay border, ...

Sônia M. S. Stivari; Amauri P. de Oliveira; Hugo A. Karam; Jacyra Soares

2003-01-01T23:59:59.000Z

133

Frequency of Heavy Rainstorms on Areas from 10 to 10 000 km2, Defined Using Dense Rain Gauge Networks  

Science Conference Proceedings (OSTI)

Operation in Illinois of eight dense rain gauge networks of varying sizes, with each operating for 5–22 yr, provided data used to assess the temporal frequency of very heavy rain events on small- to moderate-sized areas. Initial testing reveals ...

Stanley A. Changnon

2002-04-01T23:59:59.000Z

134

RINSE: The Real-Time Immersive Network Simulation Environment for Network Security Exercises (Extended Version)  

Science Conference Proceedings (OSTI)

The Real-Time Immersive Network Simulation Environment (RINSE) simulator is being developed to support large-scale network security preparedness and training exercises, involving hundreds of players and a modeled network composed of hundreds of local-area ... Keywords: Simulation, emulation, networking, security

Michael Liljenstam; Jason Liu; David M. Nicol; Yougu Yuan; Guanhua Yan; Chris Grier

2006-01-01T23:59:59.000Z

135

A strategy for the management of energy losses in a local electricity distribution network.  

E-Print Network (OSTI)

??This dissertation contains a strategy to minimize the non-technical electrical energy losses in an electrical distribution network. In order to develop the strategy, a model… (more)

Fourie, Johannes Wilhelmus

2006-01-01T23:59:59.000Z

136

Traffic Locality Oriented Route Discovery Algorithm with Chase Packets for Mobile Ad Hoc Networks  

E-Print Network (OSTI)

AL-Rodhaan,M. Mackenzie,L.M. Ould-Khaoua,M. The 2009 International Conference on Wireless Networks (ICWN'09), USA, July 13-16, 2009.

AL-Rodhaan, M.

137

Communication network modeling for simulation of wide area monitoring and control applications in power systems.  

E-Print Network (OSTI)

??This thesis has mainly focused on investigating the effect of communication network on the power system operation. The main objective of this research has been… (more)

MUDIYANSELAGE, SARANGA D. EDIRISINGHE DISSANAYAKE TENNAKOON

2013-01-01T23:59:59.000Z

138

Overview on Bayesian networks applications for dependability, risk analysis and maintenance areas  

Science Conference Proceedings (OSTI)

In this paper, a bibliographical review over the last decade is presented on the application of Bayesian networks to dependability, risk analysis and maintenance. It is shown an increasing trend of the literature related to these domains. This trend ... Keywords: Bayesian networks, Dependability, Maintenance, Reliability, Risk analysis, Safety

P. Weber; G. Medina-Oliva; C. Simon; B. Iung

2012-06-01T23:59:59.000Z

139

The role of Wireless Sensor Networks in the area of Critical Information Infrastructure Protection  

Science Conference Proceedings (OSTI)

Critical Infrastructures, such as energy, banking, and transport, are an essential pillar to the well-being of the national and international economy, security and quality of life. These infrastructures are dependent on a spectrum of highly interconnected ... Keywords: Critical Information Infrastructure Protection, Network Security, Wireless Sensor Networks

Rodrigo Roman; Cristina Alcaraz; Javier Lopez

2007-01-01T23:59:59.000Z

140

Time efficient heuristics for cell-to-switch assignment in quasi-static/dynamic location area planning of mobile cellular networks  

Science Conference Proceedings (OSTI)

This paper presents a set of time efficient, sub-optimal heuristics to solve the problem of assigning cells to mobile switching centers (or, switches in short) for an effective location area (LA) planning in a mobile cellular network (MCN). A common ... Keywords: CSA, Cellular networks, Clustering and heuristics, Handoff, Hybrid cost, Load balancing, Location area partitioning, Mobile communication, Optimization

Debashis Saha; Partha S. Bhattacharjee; Amitava Mukherjee

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

AREA  

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

AREA AREA FAQ # Question Response 316 vs DCAA FAQ 1 An inquiry from CH about an SBIR recipient asking if a DCAA audit is sufficient to comply with the regulation or if they need to add this to their audit they have performed yearly by a public accounting firm. 316 audits are essentially A-133 audits for for-profit entities. They DO NOT replace DCAA or other audits requested by DOE to look at indirect rates or incurred costs or closeouts. DCAA would never agree to perform A-133 or our 316 audits. They don't do A-133 audits for DOD awardees. The purpose of the audits are different, look at different things and in the few instances of overlap, from different perspectives. 316

142

LOG-IN Africa local governance and ICTs research network for Africa  

Science Conference Proceedings (OSTI)

LOG-IN Africa is an emergent pan-African network of researchers and research institutions from nine countries (Egypt, Ethiopia, Kenya, Mauritius, Morocco, Mozambique, Senegal, South Africa, and Uganda). It will assess the current state and outcomes of ...

Gianluca Misuraca

2006-05-01T23:59:59.000Z

143

Wireless sensor network planning with application to UWB localization in GPS-denied environments  

E-Print Network (OSTI)

Wireless Sensor Networks (WSN) have received much attention in the past 5 years, and much progress has been made in designing hardware, communications protocols, routing, and sensor fusion algorithms. The planning and ...

Jourdan, Damien, 1978-

2006-01-01T23:59:59.000Z

144

Sandia`s network for SC `97: Supporting visualization, distributed cluster computing, and production data networking with a wide area high performance parallel asynchronous transfer mode (ATM) network  

Science Conference Proceedings (OSTI)

The advanced networking department at Sandia National Laboratories has used the annual Supercomputing conference sponsored by the IEEE and ACM for the past several years as a forum to demonstrate and focus communication and networking developments. At SC `97, Sandia National Laboratories (SNL), Los Alamos National Laboratory (LANL), and Lawrence Livermore National Laboratory (LLNL) combined their SC `97 activities within a single research booth under the Advance Strategic Computing Initiative (ASCI) banner. For the second year in a row, Sandia provided the network design and coordinated the networking activities within the booth. At SC `97, Sandia elected to demonstrate the capability of the Computation Plant, the visualization of scientific data, scalable ATM encryption, and ATM video and telephony capabilities. At SC `97, LLNL demonstrated an application, called RIPTIDE, that also required significant networking resources. The RIPTIDE application had computational visualization and steering capabilities. This paper documents those accomplishments, discusses the details of their implementation, and describes how these demonstrations support Sandia`s overall strategies in ATM networking.

Pratt, T.J.; Martinez, L.G.; Vahle, M.O.; Archuleta, T.V.; Williams, V.K.

1998-05-01T23:59:59.000Z

145

Area temperature system monitoring and computing based on adaptive fuzzy logic in wireless sensor networks  

Science Conference Proceedings (OSTI)

The many subfields in the wireless sensor networking literature include data fusion, data aggregation, remote environmental monitoring, sensing (temperature, pressure speed) and various military applications. The distance between sensor nodes can be ... Keywords: Fuzzy logic, Monitoring, RSSI, Temperature, WSN

Ing-Jiunn Su; Chia-Chih Tsai; Wen-Tsai Sung

2012-05-01T23:59:59.000Z

146

Proximity breeds danger: emerging threats in metro-area wireless networks  

Science Conference Proceedings (OSTI)

The growing popularity of wireless networks and mobile devices is starting to attract unwanted attention especially as potential targets for malicious activities reach critical mass. In this study, we try to quantify the threat from large-scale distributed ...

P. Akritidis; W. Y. Chin; V. T. Lam; S. Sidiroglou; K. G. Anagnostakis

2007-08-01T23:59:59.000Z

147

Device-free localization with received signal strength measurements in wireless networks.  

E-Print Network (OSTI)

??Device-free localization (DFL) is the practice of locating people or objects when no tag or device is attached to the entity being tracked. DFL technologies… (more)

Wilson, Anthony Joseph

2010-01-01T23:59:59.000Z

148

Evaluation of global and local training techniques over feed-forward neural network architecture spaces for computer-aided medical diagnosis  

Science Conference Proceedings (OSTI)

In this paper, we investigate the performance of global vs. local techniques applied to the training of neural network classifiers for solving medical diagnosis problems. The presented methodology of the investigation involves systematic and exhaustive ... Keywords: Artificial neural networks, Backpropagation, Particle swarm optimization

Turker Ince; Serkan Kiranyaz; Jenni Pulkkinen; Moncef Gabbouj

2010-12-01T23:59:59.000Z

149

Tasking networked CCTV cameras and mobile phones to identify and localize multiple people  

Science Conference Proceedings (OSTI)

We present a method to identify and localize people by leveraging existing CCTV camera infrastructure along with inertial sensors (accelerometer and magnetometer) within each person's mobile phones. Since a person's motion path, as observed by the camera, ... Keywords: cameras, inertial sensors, localization, person identification

Thiago Teixeira; Deokwoo Jung; Andreas Savvides

2010-09-01T23:59:59.000Z

150

LARS: a locally aware reputation system for mobile ad hoc networks  

Science Conference Proceedings (OSTI)

Mobile ad hoc networks (MANETs) have nodes that are dynamically and arbitrarily located. The nodes are often battery powered and may behave selfishly to preserve power. A promising mechanism to deal with node selfishness is to use reputation methods. ... Keywords: MANET, reputation systems, selfishness, trust, virtual currency schemes

Jiangyi Hu; Mike Burmester

2006-03-01T23:59:59.000Z

151

Localization using radial basis function networks and signal trength fingerprints in WLAN  

Science Conference Proceedings (OSTI)

Fingerprinting localization techniques provide reliable location estimates and enable the development of location aware applications especially for indoor environments, where satellite based positioning is infeasible. In our approach we utilize Received ...

C. Laoudias; P. Kemppi; C. G. Panayiotou

2009-11-01T23:59:59.000Z

152

Identifying mudslide area and obtaining forewarned time using AMI associated sensor network  

Science Conference Proceedings (OSTI)

An accountable disaster prediction and the appropriate forewarned time are the key issues to reduce the possible damages. Around the globe, landslides and mudslides are serious geological hazards affecting people, and cause significant damages every ... Keywords: advanced metering infrastructure, data analysis, disaster prevention system, meter data management system, mudslide detection, sensor network

Cheng-Jen Tang; Miau Ru Dai

2010-03-01T23:59:59.000Z

153

A Framework For Designing A Network Of Marine Protected Areas In The Abrolhos Bank, Brazil  

E-Print Network (OSTI)

the Abrolhos Reef Region, Brazil. Proceedings of the Eightunique Abrolhos Reef Formation (Brazil): need for specificof the Abrolhos Area, Brazil. Proceedings of the Colloquium

Mazzillo, Fernanda

2005-01-01T23:59:59.000Z

154

Plant Networks for Processing Recyclable Materials  

Science Conference Proceedings (OSTI)

We use a modified optimal market area model to examine how links between material recycling and other aspects of operations strategy can shape plant networks for the processing of recyclable materials. We characterize the complementarity of the recyclate ... Keywords: localization, material versatility, minimills, operations strategy, optimal market area, plant networks, recycling

Lieven Demeester, Mei Qi, Luk N. Van Wassenhove

2013-10-01T23:59:59.000Z

155

Improving accuracy for range-based localization in multiple target wireless sensor networks  

Science Conference Proceedings (OSTI)

We introduce a system for multiple target range-based localization systems, such as those based on time-of-arrival (TOA) and received signal strength indicator (RSSI) for distance measurement estimations. In order to improve the accuracy of the location ...

Oscar Rodríguez; Tomoaki Ohtsuki

2011-01-01T23:59:59.000Z

156

CD-PAN: a protocol for peer-to-peer content distribution in a weakly connected and heterogeneous personal area network  

Science Conference Proceedings (OSTI)

This paper presents CD-PAN, a mechanism to automatically distribute content objects to weakly connected heterogeneous content devices in a personal area network without a global namespace. The content devices under consideration range from cell ...

Shiva Chaitanya; Prasenjit Sarkar

2008-11-01T23:59:59.000Z

157

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

158

FlexMarket : a transient mode of local exchange  

E-Print Network (OSTI)

This thesis presents the idea of a networked, transient mode of local food exchange and proposes a responsive infrastructure for integrating dynamic markets within the urban fabric. Focusing on market typologies as an area ...

Dunnam, Jennifer (Jennifer L.)

2012-01-01T23:59:59.000Z

159

An approach for seamless handoff among mobile WLAN/GPRS integrated networks  

Science Conference Proceedings (OSTI)

Wireless local area networks (WLAN) and General Packet Ratio Service (GPRS) networks are two of the most widely used wireless network systems. In this paper, we propose a mobility support for mobile host roaming between WLAN and GPRS networks. In addition, ... Keywords: GPRS, Seamless hand-off, Wireless LAN

Rong-Hong Jan; Wen-Yueh Chiu

2005-12-01T23:59:59.000Z

160

Evaluation of local content strategies to plan large engineering projects in the oil & gas industry in high risk country areas  

Science Conference Proceedings (OSTI)

The Local content of a complex project is an important variable to create value and increase the overall sustainability of large engineering projects in the Oil & Gas industry, especially in the developing countries. The paper proposes a method to ... Keywords: causal knowledge map, large engineering projects, local content, scenario analysis

Troncone Enzo Piermichele; De Falco Massimo; Gallo Mosè; Santillo Liberatina Carmela; Pier Alberto Viecelli

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area network" from the National Library of EnergyBeta (NLEBeta).
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161

A Comparison of Wireless Local Loop Technologies with Reference to their Application in Rural Areas of Pakistan  

E-Print Network (OSTI)

Areas of Pakistan Muhammad Usman Ilyas Department of Computer Science, School of Arts & Sciences, Lahore University of Management Sciences, Lahore, Pakistan. muilyas@lums.edu.pk Abstract: In this paper LMDS in rural areas of Pakistan. The low population density and great distances in Pakistan's rural areas make

Radha, Hayder

162

Application of an SVM-based regression model to the air quality study at local scale in the Avilés urban area (Spain)  

Science Conference Proceedings (OSTI)

The objective of this study is to build a regression model of air quality by using the support vector machine (SVM) technique in the Aviles urban area (Spain) at local scale. Hazardous air pollutants or toxic air contaminants refer to any substance that ... Keywords: Air quality, Machine learning, Pollutant substances, Support vector regression

A. SuáRez SáNchez; P. J. GarcíA Nieto; P. Riesgo FernáNdez; J. J. Del Coz DíAz; F. J. Iglesias-RodríGuez

2011-09-01T23:59:59.000Z

163

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

164

Turbulent Heat Fluxes in Urban Areas: Observations and a Local-Scale Urban Meteorological Parameterization Scheme (LUMPS)  

Science Conference Proceedings (OSTI)

A linked set of simple equations specifically designed to calculate heat fluxes for the urban environment is presented. This local-scale urban meteorological parameterization scheme (LUMPS), which has similarities to the hybrid plume dispersion ...

C. S. B. Grimmond; T. R. Oke

2002-07-01T23:59:59.000Z

165

Mapping Frost-Sensitive Areas with a Three-Dimensional Local-Scale Numerical Model. Pad II: Comparison with Observations  

Science Conference Proceedings (OSTI)

A three-dimensional numerical model was developed to predict the microclimate near the ground surface of local-scale domains during radiative frost events. Its performances are compared with an observational topo-climatological survey of minimum ...

R. Avissar; Y. Mahrer

1988-04-01T23:59:59.000Z

166

Extension and Application of a Local, Minimum Aliasing Method to Multidimensional Problems in Limited-Area Domains  

Science Conference Proceedings (OSTI)

The minimal aliasing local spectral (LS) method is a numerical technique that embodies features of both finite-difference (FD) and spectral transform (ST) methods. Anderson first described this method in the context of the one-dimensional ...

Jerry M. Straka; John R. Anderson

1993-10-01T23:59:59.000Z

167

Decision support system for estimating the technically and economically exploitable renewable energy sources potential in wide areas for connection to high voltage networks  

Science Conference Proceedings (OSTI)

A decision support information system for estimating the technically and economically exploitable renewable energy sources (RES) potential in wide areas is presented in this paper. The system estimates the RES potential in specific areas, examines ... Keywords: DSS, GIS, biomass, decision support systeoms, distributed generation, geographical information systems, high voltage network, renewable energy estimation, renewable energy forecasting, renewable energy potential, renewable energy sources, small hydro, wind energy, wind power

Michael Psalidas; Demosthenes Agoris; Vassilis Kilias; Kostas Tigas; Panagiotis Stratis; Giannis Vlachos

2005-04-01T23:59:59.000Z

168

Improvements in the computation of balances and localization of commercial losses of electric energy in 0.38-kV networks  

SciTech Connect

An example of four 0.38-kV overhead distribution lines fed from a 10/0.4-kV transformer substation of the Grodno Electrical Networks (Belarus') and supplying electricity to a cottage area is used for analyzing energy balances and commercial losses in the networks. It is shown that the reliability of such analysis can be ensured by the use of modern software and electronic energy meters recording a retrospective of half-hourly intervals of active and reactive electric energy.

Vorotnitskii, V. Z.; Zaslonov, S. V.; Lysyuk, S. S. [Electric Power Research Institute (VNIIE) (Russian Federation)

2006-11-15T23:59:59.000Z

169

DESIGN AND DEPLOYMENT OF A MOBILE SENSOR NETWORK FOR THE SURVEILLANCE OF NUCLEAR MATERIALS IN METROPOLITAN AREAS  

E-Print Network (OSTI)

surveillance of nuclear materials in major cities. Specifically, the network consists of a large numberDESIGN AND DEPLOYMENT OF A MOBILE SENSOR NETWORK FOR THE SURVEILLANCE OF NUCLEAR MATERIALS, Rutgers University Piscataway, NJ 08854 Piscataway, NJ 08854 Key Words: Nuclear Detection and Surveillance

170

Volcanic Ash Transport from Mount Asama to the Tokyo Metropolitan Area Influenced by Large-Scale Local Wind Circulation  

Science Conference Proceedings (OSTI)

The eruption of the Mount Asama volcano on 16 September 2004 produced an ash cloud and led to ashfall in the Tokyo metropolitan area that lies on the Kanto Plain. Satellite images showed the ash cloud drifting toward the south in the morning but ...

Nobumitsu Tsunematsu; Tomohiro Nagai; Toshiyuki Murayama; Ahoro Adachi; Yasuhiro Murayama

2008-04-01T23:59:59.000Z

171

ISD97, a computer program to analyze data from a series of in situ measurements on a grid and identify potential localized areas of elevated activity  

SciTech Connect

A computer program, ISD97, was developed to analyze data from a series of in situ measurements on a grid and identify potential localized areas of elevated activity. The ISD97 code operates using a two-step process. A deconvolution of the data is carried out using the maximum entropy method, and a map of activity on the ground that fits the data within experimental error is generated. This maximum entropy map is then analyzed to determine the locations and magnitudes of potential areas of elevated activity that are consistent with the data. New deconvolutions are then carried out for each potential area of elevated activity identified by the code. Properties of the algorithm are demonstrated using data from actual field measurements.

Reginatto, M.; Shebell, P.; Miller, K.M.

1997-10-01T23:59:59.000Z

172

Observing Local-Scale Variability of Near-Surface Temperature and Humidity Using a Wireless Sensor Network  

Science Conference Proceedings (OSTI)

In this paper the influence of surface type, wind speed, and other environmental conditions on near-surface air temperature, specific humidity, and surface temperature is studied. A wireless sensor network consisting of 13 low-cost meteorological ...

Katharina Lengfeld; Felix Ament

2012-01-01T23:59:59.000Z

173

Modelling and evaluation of the 3G mobile networks with hot-spot WLANs  

Science Conference Proceedings (OSTI)

An analytical modelling and evaluation approach is developed for the integrated 3G/WLAN networks. The cell residence times of different types of users are modelled as a general distribution to adapt various mobility environments. The explicit expressions ... Keywords: 3G cellular networks, CAC, call admission control, channel occupancy time, horizontal handoff, hot spot WLANs, integration, local area networks, mobile networks, modelling, performance evaluation, traffic analysis, vertical handoff, wireless LANs, wireless networks

Shensheng Tang; Wei Li

2007-01-01T23:59:59.000Z

174

Information-Theoretic Approaches for Sensor Selection and Placement in Sensor Networks for Target Localization and Tracking  

E-Print Network (OSTI)

pro- cessing for target tracking,” EURASIP JASP: Specialtarget local- ization and tracking and reviews the mutualestimation: Navigation and tracking applications,” Thesis of

Hanbiao Wang; Kung Yao; Deborah Estrin

2005-01-01T23:59:59.000Z

175

Information-Theoretic Approaches for Sensor Selection and Placement in Sensor Networks for Target Localization and Tracking  

E-Print Network (OSTI)

processing for target tracking,” EURASIP J. Applied Signalestimation: Navigation and tracking applications,” Ph.D.for Target Localization and Tracking Hanbiao Wang, Kung Yao,

Wang, H B; Yao, K; Estrin, D

2005-01-01T23:59:59.000Z

176

Positioning using local maps  

Science Conference Proceedings (OSTI)

It is often useful to know the positions of nodes in a network. However, in a large network it is impractical to build a single global map. In this paper, we present a new approach for distributed localization called Positioning using Local Maps (PLM). ... Keywords: Localization, Multidimensional scaling, Multilateration, Relative position estimation

Yi Shang; Wheeler Ruml; Markus P. J. Fromherz

2006-03-01T23:59:59.000Z

177

Diurnal Cycle of Water Vapor as Documented by a Dense GPS Network in a Coastal Area during ESCOMPTE IOP2  

Science Conference Proceedings (OSTI)

Global positioning system (GPS) data from a dense network have been used for the analysis of the diurnal cycle of water vapor over Marseille, France, during the second intensive observation period (IOP2; 21–26 June 2001) of the Expérience sur ...

Sophie Bastin; Cédric Champollion; Olivier Bock; Philippe Drobinski; Frédéric Masson

2007-02-01T23:59:59.000Z

178

VillageNet: A low-cost, IEEE 802.11-based mesh network for connecting rural areas  

Science Conference Proceedings (OSTI)

VillageNet is a new wireless mesh networking technology that provides low-cost broadband Internet access for wide regions. It targets the rural market around the world, where large populations live but paying capacities are low. VillageNet offers a low-cost, ...

Partha Dutta; Sharad Jaiswal; Rajeev Rastogi

2007-08-01T23:59:59.000Z

179

Cryptographic Challenges for Smart Grid Home Area ...  

Science Conference Proceedings (OSTI)

Page 1. Cryptographic Challenges for Smart Grid Home Area Networks Secure Networking Author – Apurva Mohan, Honeywell ACS Labs ...

2012-05-09T23:59:59.000Z

180

Optimization Online - All Areas Submissions - October 2013  

E-Print Network (OSTI)

All Areas Submissions - October 2013. Network Optimization Optimization Models for Differentiating Quality of Service Levels in Probabilistic Network Capacity ...

Note: This page contains sample records for the topic "local area 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

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

182

A novel real-time coalminer localization and tracking system based on self-organized sensor networks  

Science Conference Proceedings (OSTI)

With the development of information technology, we envision that the key of improving coal mine safety is how to get realtime positions of miners. In this paper, we propose a prototype system for real-time coal miner localization and tracking based on ...

Yang Wang; Liusheng Huang; Wei Yang

2010-02-01T23:59:59.000Z

183

Fast Localization Using Robust UWB Coding in Wireless Sensor Networks Di Wu, Lichun Bao, Renfa Li and Fanzi Zeng  

E-Print Network (OSTI)

in coal mine environments. The localization algorithm first derives the corresponding UWB path loss model in coal mine environments. Keywords-Coal mine channel modeling; orthogonal variable spreading factor (OVSF at monitoring and tracking human and vehicle locations in coal mine environments. This research is especially

Bao, Lichun

184

Lambdastation: a forwarding and admission control service to interface production network facilities with advanced research network paths  

Science Conference Proceedings (OSTI)

Over the past several years, there has been a great deal of research effort and funding put into the deployment of optical-based, advanced technology wide-area networks. Fermilab and CalTech have initiated a project to enable our production network facilities to exploit these advanced research network facilities. Our objective is to forward designated data transfers across these advanced wide area networks on a per-flow basis, making use our capacious production-use storage systems connected to the local campus network. To accomplish this, we intend to develop a dynamically provisioned forwarding service that would provide alternate path forwarding onto available wide area advanced research networks. The service would dynamically reconfigure forwarding of specific flows within our local production-use network facilities, as well as provide an interface to enable applications to utilize the service. We call this service LambdaStation. If one envisions wide area optical network paths as high bandwidth data railways, then LambdaStation would functionally be the railroad terminal that regulates which flows at the local site get directed onto the high bandwidth data railways. LambdaStation is a DOE-funded SciDac research project in its very early stage of development.

DeMar, Philip; Petravick, Don; /Fermilab

2004-12-01T23:59:59.000Z

185

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; Jörg Widmer

2006-01-01T23:59:59.000Z

186

Building Technologies Office: State and Local Energy Efficiency...  

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

State and Local Energy Efficiency Action Network to someone by E-mail Share Building Technologies Office: State and Local Energy Efficiency Action Network on Facebook Tweet about...

187

Real-time method for establishing a detection map for a network of sensors  

DOE Patents (OSTI)

A method for establishing a detection map of a dynamically configurable sensor network. This method determines an appropriate set of locations for a plurality of sensor units of a sensor network and establishes a detection map for the network of sensors while the network is being set up; the detection map includes the effects of the local terrain and individual sensor performance. Sensor performance is characterized during the placement of the sensor units, which enables dynamic adjustment or reconfiguration of the placement of individual elements of the sensor network during network set-up to accommodate variations in local terrain and individual sensor performance. The reconfiguration of the network during initial set-up to accommodate deviations from idealized individual sensor detection zones improves the effectiveness of the sensor network in detecting activities at a detection perimeter and can provide the desired sensor coverage of an area while minimizing unintentional gaps in coverage.

Nguyen, Hung D; Koch, Mark W; Giron, Casey; Rondeau, Daniel M; Russell, John L

2012-09-11T23:59:59.000Z

188

The epidemiology and surveillance response to pandemic influenza A (H1N1) among local health departments in the San Francisco Bay Area  

E-Print Network (OSTI)

learned, organizational performance, public health sta?ngorganizational capacity due to funding cuts in many local healthorganizational response and performance, we recruited two types of key informants: public health

Enanoria, Wayne TA; Crawley, Adam W; Tseng, Winston; Furnish, Jasmine; Balido, Jeannie; Aragón, Tomás J

2013-01-01T23:59:59.000Z

189

Communication in Home Area Networks  

E-Print Network (OSTI)

277 VAC transformer EV EV EV EV EV Adapter Power Line Cabledistribution power line). A typical transformer equivalentpower line in commercial buildings in America/Japan needs additional transformer.

Wang, Yubo

2012-01-01T23:59:59.000Z

190

Communication in Home Area Networks  

E-Print Network (OSTI)

Vehicle Supply Equipment Green PHY PEV Plug-in Electricaldata rate. HomePlug Green PHY (GP), AV and AV2 are developedstandards Netricity Green PHY AV AV2 Bandwidth(Hz) 10–490 k

Wang, Yubo

2012-01-01T23:59:59.000Z

191

Communication in Home Area Networks  

E-Print Network (OSTI)

Linking and Embedding EVSE OSI Open Systems InterconnectionVehicle Supply Equipment (EVSE), by using PLC no additionalcost of deploying a 6-node EVSE HAN as shown in Fig. 5.5.

Wang, Yubo

2012-01-01T23:59:59.000Z

192

Network-aware Adaptation with Real-Time Channel Statistics for Wireless LAN Multimedia Transmissions in the Digital Home  

E-Print Network (OSTI)

This paper suggests the use of intelligent network-aware processing agents in wireless local area network drivers to generate metrics for bandwidth estimation based on real-time channel statistics to enable wireless multimedia application adaptation. Various configurations in the wireless digital home are studied and the experimental results with performance variations are presented.

Krishnaswamy, Dilip

2009-01-01T23:59:59.000Z

193

Measurement and performance evaluation of NFS traffic in ATM network  

Science Conference Proceedings (OSTI)

This article has three parts. At first, we explore traffic characterization of an ATM local area network and find the traffic presents both long and short range dependence in nature. Secondly, one long range dependent traffic model (fast fractional Gaussian ... Keywords: ATM, NFS, Traffic measurement

Jung-Shian Li; A Wolisz; R Popescu-Zeletin

1999-01-01T23:59:59.000Z

194

Architectural framework for wireless mobile ad hoc networks (AF WMANETs)  

Science Conference Proceedings (OSTI)

WMANETs are more popular and successful in the marketplace of the future wireless technology as indicated by the increasing usage of Bluetooth and Wireless Local Area Networks (WLANs). To aid the application of WMANETs in any wireless environment, when ... Keywords: Computational viewpoint, Enterprise viewpoint, Information viewpoint, RM-ODP, Security, TINA, WMANETs

I. Almomani; M. Al-Akaidi; P. Reynolds; J. Ivins

2006-12-01T23:59:59.000Z

195

Effects of Regional Warming due to Urbanization on Daytime Local Circulations in a Complex Basin of the Daegu Metropolitan Area, Korea  

Science Conference Proceedings (OSTI)

Numerical and observational analyses were conducted using realistic and historical three-set land-use data over 40 yr from 1963 to 2002 to evaluate regional warming in the Daegu metropolitan area due to dramatic land-use alterations in the basin ...

Soon-Hwan Lee; Hae-Dong Kim

2008-05-01T23:59:59.000Z

196

Strategies in tracking and localization of distributed underwater systems  

E-Print Network (OSTI)

decoding approach for underwater acoustic communications",Mobility Prediction for Underwater Sensor Networks", W U W NH . V . , "Localization in Underwater Sensor Networks Survey

Mirza, Diba

2010-01-01T23:59:59.000Z

197

2006 Special Issue: Analyzing and shaping human attentional networks  

Science Conference Proceedings (OSTI)

In this paper we outline a conception of attentional networks arising from imaging studies as connections between activated brain areas carrying out localized mental operations. We consider both the areas of functional activation (nodes) and the structural ... Keywords: Alerting, DCM (Dynamic causal model for connectivity analysis), DTI (Diffusion tensor imaging), EEG frequency (electroencephalographic), Executive attention, Orienting, Self-regulation, fMRI (functional magnetic resonance imaging)

Michael I. Posner; Brad E. Sheese; Yalçin Odluda?; YiYuan Tang

2006-11-01T23:59:59.000Z

198

Information network and data base in clinical diagnosis and bacterial sensibility surveillance: a special requirement in acute diarrhoea control and monitoring into a regional area  

Science Conference Proceedings (OSTI)

Worldwide acute diarrhoea constitutes a major cause of morbidity and mortality. Acute diarrhoea is usually caused by infection, with viruses, bacteria, parasites. Bacteria involved in acute diarrhoea may be detected by culture from the stool of ill person. ... Keywords: acute diarrhoea, data base, information network

Scarneciu Camelia; Maria-Elena Cocuz; Scarneciu Ioan; Roxana Miclaus

2010-11-01T23:59:59.000Z

199

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

200

End-to-end network/application performance troubleshooting methodology  

Science Conference Proceedings (OSTI)

The computing models for HEP experiments are globally distributed and grid-based. Obstacles to good network performance arise from many causes and can be a major impediment to the success of the computing models for HEP experiments. Factors that affect overall network/application performance exist on the hosts themselves (application software, operating system, hardware), in the local area networks that support the end systems, and within the wide area networks. Since the computer and network systems are globally distributed, it can be very difficult to locate and identify the factors that are hurting application performance. In this paper, we present an end-to-end network/application performance troubleshooting methodology developed and in use at Fermilab. The core of our approach is to narrow down the problem scope with a divide and conquer strategy. The overall complex problem is split into two distinct sub-problems: host diagnosis and tuning, and network path analysis. After satisfactorily evaluating, and if necessary resolving, each sub-problem, we conduct end-to-end performance analysis and diagnosis. The paper will discuss tools we use as part of the methodology. The long term objective of the effort is to enable site administrators and end users to conduct much of the troubleshooting themselves, before (or instead of) calling upon network and operating system 'wizards,' who are always in short supply.

Wu, Wenji; Bobyshev, Andrey; Bowden, Mark; Crawford, Matt; Demar, Phil; Grigaliunas, Vyto; Grigoriev, Maxim; Petravick, Don; /Fermilab

2007-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

Bay Area | Open Energy Information  

Open Energy Info (EERE)

Bay Area Bay Area Jump to: navigation, search Contents 1 Clean Energy Clusters in the Bay Area 1.1 Products and Services in the Bay Area 1.2 Research and Development Institutions in the Bay Area 1.3 Networking Organizations in the Bay Area 1.4 Investors and Financial Organizations in the Bay Area 1.5 Policy Organizations in the Bay Area Clean Energy Clusters in the Bay Area Products and Services in the Bay Area Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":500,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

202

Texas Area | Open Energy Information  

Open Energy Info (EERE)

Area Area Jump to: navigation, search Contents 1 Clean Energy Clusters in the Texas Area 1.1 Products and Services in the Texas Area 1.2 Research and Development Institutions in the Texas Area 1.3 Networking Organizations in the Texas Area 1.4 Investors and Financial Organizations in the Texas Area 1.5 Policy Organizations in the Texas Area Clean Energy Clusters in the Texas Area Products and Services in the Texas Area Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":500,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

203

Rockies Area | Open Energy Information  

Open Energy Info (EERE)

Rockies Area Rockies Area Jump to: navigation, search Contents 1 Clean Energy Clusters in the Rockies Area 1.1 Products and Services in the Rockies Area 1.2 Research and Development Institutions in the Rockies Area 1.3 Networking Organizations in the Rockies Area 1.4 Investors and Financial Organizations in the Rockies Area 1.5 Policy Organizations in the Rockies Area Clean Energy Clusters in the Rockies Area Products and Services in the Rockies Area Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":500,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

204

LambdaStation: Exploiting Advance Networks In Data Intensive High Energy Physics Applications  

SciTech Connect

Lambda Station software implements selective, dynamic, secure path control between local storage & analysis facilities, and high bandwidth, wide-area networks (WANs). It is intended to facilitate use of desirable, alternate wide area network paths which may only be intermittently available, or subject to policies that restrict usage to specified traffic. Lambda Station clients gain awareness of potential alternate network paths via Clarens-based web services, including path characteristics such as bandwidth and availability. If alternate path setup is requested and granted, Lambda Station will configure the local network infrastructure to properly forward designated data flows via the alternate path. A fully functional implementation of Lambda Station, capable of dynamic alternate WAN path setup and teardown, has been successfully developed. A limited Lambda Station-awareness capability within the Storage Resource Manager (SRM) product has been developed. Lambda Station has been successfully tested in a number of venues, including Super Computing 2008. LambdaStation software, developed by the Fermilab team, enables dynamic allocation of alternate network paths for high impact traffic and to forward designated flows across LAN. It negotiates with reservation and provisioning systems of WAN control planes, be it based on SONET channels, demand tunnels, or dynamic circuit networks. It creates End-To-End circuit between single hosts, computer farms or networks with predictable performance characteristics, preserving QoS if supported in LAN and WAN and tied security policy allowing only specific traffic to be forwarded or received through created path. Lambda Station project also explores Network Awareness capabilities.

Harvey B. Newman

2009-09-11T23:59:59.000Z

205

PeerMon: a peer-to-peer network monitoring system  

Science Conference Proceedings (OSTI)

We present PeerMon, a peer-to-peer resource monitoring system for general purpose Unix local area network (LAN) systems. PeerMon is designed to monitor system resources on a single LAN, but it also could be deployed on several LANs where some inter-LAN ...

Tia Newhall; Janis Libeks; Ross Greenwood; Jeff Knerr

2010-11-01T23:59:59.000Z

206

Dual home agent (DHA)-based location management scheme in integrated cellular-WLAN networks  

Science Conference Proceedings (OSTI)

For seamless integration of cellular and wireless local area network (WLAN) systems, we introduce a dual home agent (DHA)-based location management. The DHA maintains the location information both in the cellular and WLAN systems, and therefore unnecessary ... Keywords: Cellular-WLAN integration, Dual home agent (DHA), Mobile IP, Performance analysis

Sangheon Pack; Wonjun Lee

2008-12-01T23:59:59.000Z

207

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

208

Connectivity, throughput, and end-to-end latency in infrastructureless wireless Networks with beamforming-enabled devices  

E-Print Network (OSTI)

Infrastructureless wireless networks are an important class of wireless networks best fitted to operational situations with temporary, localized demand for communication ability. These networks are composed of wireless ...

Carey, Matthew F. (Matthew Francis)

2011-01-01T23:59:59.000Z

209

Redevelopment of Areas Needing Redevelopment Generally (Indiana)  

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

Local redevelopment commissions may be established to oversee areas needing redevelopment (previously known as blighted, deteriorated, or deteriorating areas). The clearance, replanning, and...

210

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

211

ICLEI and REN21 Local Renewables Web Portal | Open Energy Information  

Open Energy Info (EERE)

ICLEI and REN21 Local Renewables Web Portal ICLEI and REN21 Local Renewables Web Portal Jump to: navigation, search Tool Summary Name: ICLEI and REN21 Local Renewable Web Portal Agency/Company /Organization: International Council for Local Environmental Initiatives Partner: Renewable Energy Policy Network for the 21st Century (REN21) Sector: Energy, Climate Focus Area: People and Policy, Economic Development Phase: Bring the Right People Together, Create a Vision, Evaluate Options, Develop Goals, Prepare a Plan, Create Early Successes, Evaluate Effectiveness and Revise as Needed Topics: Implementation, Policies/deployment programs Resource Type: Guide/manual, Training materials, Lessons learned/best practices User Interface: Website Website: www.local.ren21.net/home/ Cost: Free References: Local Renewables Web Portal[1]

212

The role of groups in smart camera networks  

E-Print Network (OSTI)

Recent research in sensor networks has made it possible to deploy networks of sensors with significant local processing. These sensor networks are revolutionising information collection and processing in many different ...

Mallett, Jacky, 1963-

2006-01-01T23:59:59.000Z

213

Regional and local subsidence in Louisiana  

DOE Green Energy (OSTI)

The measurement of local, man-induced subsidence is especially critical in areas with high rates of land loss. To measure this subsidence, absolute historical geodetic movements have been estimated by adjusting all movements along the first-order vertical control network from northeast to southwest Louisiana as related to the Monroe uplift. The adjustment will serve as a base line by which local subsidence or uplift can be measured. A generalized trend of increasing subsidence to the south in Louisiana probably reflects increasing sediment thickness and weight toward the axis of the Gulf Coast basin. Anomalous values as low as -17.6 mm/y (-0.7 in./y) occur in areas overlying Pleistocene and Holocene fluvial elements. Positive movement as high as +4.1 mm/y (+0.2 in./y), has been found to be associated with the Iberian structural axis in south-central Louisiana. Land subsidence due to natural causes may far outweigh subsidence resulting from fluid withdrawal or depressurization of geopressured aquifers. The effects of regional and local natural processes should not be underestimated in any systematic approach to measuring subsidence.

Trahan, D.B.

1984-01-01T23:59:59.000Z

214

Localization privacy  

Science Conference Proceedings (OSTI)

Location-aware technology and its applications are fundamental to ubiquitous computing. Essential to this technology is object localization and identification. RFID (radio frequency identification) technology has been shown to be very effective for identification ... Keywords: RFID, localization privacy, location privacy, location-aware applications, object localization

Mike Burmester

2012-01-01T23:59:59.000Z

215

Modeling, Simulation and Analysis of Complex Networked Systems: A Program Plan for DOE Office of Advanced Scientific Computing Research  

Science Conference Proceedings (OSTI)

Many complex systems of importance to the U.S. Department of Energy consist of networks of discrete components. Examples are cyber networks, such as the internet and local area networks over which nearly all DOE scientific, technical and administrative data must travel, the electric power grid, social networks whose behavior can drive energy demand, and biological networks such as genetic regulatory networks and metabolic networks. In spite of the importance of these complex networked systems to all aspects of DOE's operations, the scientific basis for understanding these systems lags seriously behind the strong foundations that exist for the 'physically-based' systems usually associated with DOE research programs that focus on such areas as climate modeling, fusion energy, high-energy and nuclear physics, nano-science, combustion, and astrophysics. DOE has a clear opportunity to develop a similarly strong scientific basis for understanding the structure and dynamics of networked systems by supporting a strong basic research program in this area. Such knowledge will provide a broad basis for, e.g., understanding and quantifying the efficacy of new security approaches for computer networks, improving the design of computer or communication networks to be more robust against failures or attacks, detecting potential catastrophic failure on the power grid and preventing or mitigating its effects, understanding how populations will respond to the availability of new energy sources or changes in energy policy, and detecting subtle vulnerabilities in large software systems to intentional attack. This white paper outlines plans for an aggressive new research program designed to accelerate the advancement of the scientific basis for complex networked systems of importance to the DOE. It will focus principally on four research areas: (1) understanding network structure, (2) understanding network dynamics, (3) predictive modeling and simulation for complex networked systems, and (4) design, situational awareness and control of complex networks. The program elements consist of a group of Complex Networked Systems Research Institutes (CNSRI), tightly coupled to an associated individual-investigator-based Complex Networked Systems Basic Research (CNSBR) program. The CNSRI's will be principally located at the DOE National Laboratories and are responsible for identifying research priorities, developing and maintaining a networked systems modeling and simulation software infrastructure, operating summer schools, workshops and conferences and coordinating with the CNSBR individual investigators. The CNSBR individual investigator projects will focus on specific challenges for networked systems. Relevancy of CNSBR research to DOE needs will be assured through the strong coupling provided between the CNSBR grants and the CNSRI's.

Brown, D L

2009-05-01T23:59:59.000Z

216

Battery Allocation for Maximizing Lifetime of Wireless Sensor Networks.  

E-Print Network (OSTI)

??Wireless sensor network has been an area of interest among researchers. Designing a wireless sensor network involves multiple issues such as size and processing capacity… (more)

Khambete, Ketki

2010-01-01T23:59:59.000Z

217

Recommended Practices Guide For Securing ZigBee Wireless Networks...  

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

networks. ZigBee is a protocol specification and industry standard for a type of wireless communications technology generically known as Low-Rate Wireless Personal Area Networks...

218

Secure localization with phantom node detection  

Science Conference Proceedings (OSTI)

In an adversarial environment, various kinds of attacks become possible if malicious nodes could claim fake locations that are different from their physical locations. In this paper, we propose a secure localization mechanism that detects existence of ... Keywords: Decentralized algorithm, Localization, Location verification, Secure localization, Sensor networks, Speculative algorithm

Joengmin Hwang; Tian He; Yongdae Kim

2008-09-01T23:59:59.000Z

219

Micro-Earthquake At Raft River Geothermal Area (1982) | Open Energy  

Open Energy Info (EERE)

) ) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Raft River Geothermal Area (1982) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Micro-Earthquake Activity Date 1982 Usefulness not indicated DOE-funding Unknown Exploration Basis Develop a background seismicity before power production begins Notes Local seismic networks were established to monitor the background seismicity prior to initiation of geothermal power production. The Raft River study area is currently seismically quiet down to the level of approximately magnitude one. References Zandt, G.; Mcpherson, L.; Schaff, S.; Olsen, S. (1 May 1982) Seismic baseline and induction studies- Roosevelt Hot Springs, Utah and

220

The n-hop multilateration primitive for node localization problems  

Science Conference Proceedings (OSTI)

The recent advances in MEMS, embedded systems and wireless communication technologies are making the realization and deployment of networked wireless microsensors a tangible task. In this paper we study node localization, a component technology that ... Keywords: ad-hoc localization, distributed localization, sensor networks

Andreas Savvides; Heemin Park; Mani B. Srivastava

2003-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

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

222

Building Technologies Office: State and Local Energy Efficiency...  

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

Energy Efficiency Action Network Graphic of logo of the State and Local Energy Efficiency (SEE) Action Network, which includes a green map of the United States with all the states...

223

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

224

Explicit Sensor Network Localization using Semidefinite ...  

E-Print Network (OSTI)

... EDMC, and ignoring the distinction between the anchors and the other sen- ..... we obtain information on U using the cliques in the graph of the partial EDM .

225

EOC requirements at state and local levels. Final report  

Science Conference Proceedings (OSTI)

Part One of this report analyzes Emergency Operating Center functions and requirements at local, area, and sub-State or State levels. EOC roles in times of normalcy, in natural disasters with and without warning, and in the crisis, in-shelter, and postattack phases of nuclear war are examined and compared. In Part Two, three approaches to a backbone nationwide direction and control network are reviewed. A sub-State system based on existing State highway department districts, facilities, and equipment is proposed and correlations with two other sub-State concepts (MIDAS and RAOC) are evaluated.

Paxton, K.F.; Goshe, F.; Rainey, C.T.

1980-08-01T23:59:59.000Z

226

Body Area Networks & Pervasive Health Monitoring  

Science Conference Proceedings (OSTI)

... and also possible integration with existing IT ... monitors and eye pressure sensing systems. ... interference issues, reliability, energy efficiency, and ...

2013-05-15T23:59:59.000Z

227

Wireless Field Area Network Spectrum Assessment  

Science Conference Proceedings (OSTI)

Utilities are looking for communications technologies that can provide robust support for integration and management of a broad range of Smart Grid applications, starting with advanced distribution management and automation [ADA], distributed energy resources [DERs], advanced metering [AMI], and demand response [DR]. The number and variety of candidate technologies can seem daunting; this EPRI research highlights some core Smart Grid communications requirements and assesses the degree to which systems ba...

2010-12-22T23:59:59.000Z

228

Home Area Network Performance and Reliability  

Science Conference Proceedings (OSTI)

The renewal of the North American electrical infrastructure the re-factoring of the present plant into a Smart Grid is among the most ambitious engineering feats to be undertaken in our time. The urgency, criticality, complexity, and cost of the endeavor are daunting, and can seem almost overwhelming. Faced with pressing societal needs capping, then decreasing carbon emissions; curbing per-capita energy consumption; raising the efficiency of energy production and delivery; integrating renewable energy so...

2010-12-31T23:59:59.000Z

229

Basic Tradeoffs for Energy Management in Rechargeable Sensor Networks  

E-Print Network (OSTI)

As many sensor network applications require deployment in remote and hard-to-reach areas, it is critical to ensure that such networks are capable of operating unattended for long durations. Consequently, the concept of using nodes with energy replenishment capabilities has been gaining popularity. However, new techniques and protocols must be developed to maximize the performance of sensor networks with energy replenishment. Here, we analyze limits of the performance of sensor nodes with limited energy, being replenished at a variable rate. We provide a simple localized energy management scheme that achieves a performance close to that with an unlimited energy source, and at the same time keeps the probability of complete battery discharge low. Based on the insights developed, we address the problem of energy management for energy-replenishing nodes with finite battery and finite data buffer capacities. To this end, we give an energy management scheme that achieves the optimal utility asymptotically while kee...

Srivastava, Rahul

2010-01-01T23:59:59.000Z

230

Network Awareness, Social Context and Persuasion  

Science Conference Proceedings (OSTI)

This paper brings a sociological perspective to an area dominated by social psychology, that of persuasion. It discusses how networks can be used to describe context for persuasive messages. It has been previously argued that network awareness, having ...

Donald Steiny

2008-06-01T23:59:59.000Z

231

PROCEEDINGS OF FOURTH BERKELEY CONFERENCE ON DISTRIBUTED DATA MANAGEMENT AND COMPUTER NETWORKS.  

E-Print Network (OSTI)

packet switching for local computer networks. Comm. of theaddressing capabilities for computer networks. Proe. IEEE,InternatIonal Conference on,Computer CommunIcatIon, August

Hall, Dennis

2011-01-01T23:59:59.000Z

232

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

233

Preconfigured structures for survivable WDM networks  

Science Conference Proceedings (OSTI)

Network survivability against component failure is an important issue in WDM (Wavelength Division Multiplexing) optical networks. This includes failure detection, localization and isolation (i.e. protection or restoration). In this paper, we focus on ... Keywords: WDM (wavelength division multiplexing), failure detection and localization, protection, survivability

Bin Wu; Kwan L. Yeung; Pin-Han Ho

2008-07-01T23:59:59.000Z

234

Optimal Pricing in Networks with Externalities  

Science Conference Proceedings (OSTI)

We study the optimal pricing strategies of a monopolist selling a divisible good (service) to consumers who are embedded in a social network. A key feature of our model is that consumers experience a (positive) local network effect. In particular, ... Keywords: externalities, optimal pricing, social networks

Ozan Candogan; Kostas Bimpikis; Asuman Ozdaglar

2012-07-01T23:59:59.000Z

235

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

236

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

237

Local Information  

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

Local Information Local Information Local Information Welcome to Golden, Colorado, the location of the 2014 Electrical Safety Workshop. Visiting NREL The National Renewable Energy Laboratory (NREL) has research facilities and offices at several locations in Golden, Colorado (near Boulder), and in Washington, D.C. In Golden, you'll find the NREL Education Center, along with many of our research laboratories and administrative offices. The National Wind Technology Center is a separate facility located about 5 miles south of Boulder. Read more » Transportation NREL is accessible via bus on the Regional Transportation District (RTD) Route 20 from Aurora and Denver. Route 20 travels along 20th Avenue and ends at the NREL Education Center. Visit the RTD Web site or call 303-299-6000 to plan your trip or for more

238

S.: Capacity assignment for NAC budgets in resilient networks  

E-Print Network (OSTI)

This paper addresses Quality of Service (QoS) in the presence of network failures. QoS is ensured by Network Admission Control (NAC) mechanisms along virtual tunnels through the network. Their capacity budgets must be set such that the expected traffic can be transported and that unintended overbooking of the physical network capacity is avoided. This paper presents an adaptation for resilient networks, i.e., traffic rerouting is respected in case of local network outages. 1

Michael Menth; Jens Milbr; Stefan Kopf; Michael Menth; Jens Milbr

2004-01-01T23:59:59.000Z

239

Research Areas  

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

Areas Areas Research Areas Print Scientists from a wide variety of fields come to the ALS to perform experiements. Listed below are some of the most common research areas covered by ALS beamlines. Below each heading are a few examples of the specific types of topics included in that category. Click on a heading to learn more about that research area at the ALS. Energy Science Photovoltaics, photosynthesis, biofuels, energy storage, combustion, catalysis, carbon capture/sequestration. Bioscience General biology, structural biology. Materials/Condensed Matter Correlated materials, nanomaterials, magnetism, polymers, semiconductors, water, advanced materials. Physics Atomic, molecular, and optical (AMO) physics; accelerator physics. Chemistry Surfaces/interfaces, catalysts, chemical dynamics (gas-phase chemistry), crystallography, physical chemistry.

240

A Multi Agent-Based Framework for Simulating Household PHEV Distribution and Electric Distribution Network Impact  

DOE Green Energy (OSTI)

The variation of household attributes such as income, travel distance, age, household member, and education for different residential areas may generate different market penetration rates for plug-in hybrid electric vehicle (PHEV). Residential areas with higher PHEV ownership could increase peak electric demand locally and require utilities to upgrade the electric distribution infrastructure even though the capacity of the regional power grid is under-utilized. Estimating the future PHEV ownership distribution at the residential household level can help us understand the impact of PHEV fleet on power line congestion, transformer overload and other unforeseen problems at the local residential distribution network level. It can also help utilities manage the timing of recharging demand to maximize load factors and utilization of existing distribution resources. This paper presents a multi agent-based simulation framework for 1) modeling spatial distribution of PHEV ownership at local residential household level, 2) discovering PHEV hot zones where PHEV ownership may quickly increase in the near future, and 3) estimating the impacts of the increasing PHEV ownership on the local electric distribution network with different charging strategies. In this paper, we use Knox County, TN as a case study to show the simulation results of the agent-based model (ABM) framework. However, the framework can be easily applied to other local areas in the US.

Cui, Xiaohui [ORNL; Liu, Cheng [ORNL; Kim, Hoe Kyoung [ORNL; Kao, Shih-Chieh [ORNL; Tuttle, Mark A [ORNL; Bhaduri, Budhendra L [ORNL

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

Time-Dependent Seismic Tomography of the Coso Geothermal Area, 1996-2004 |  

Open Energy Info (EERE)

Dependent Seismic Tomography of the Coso Geothermal Area, 1996-2004 Dependent Seismic Tomography of the Coso Geothermal Area, 1996-2004 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Time-dependent seismic tomography of the Coso geothermal area, 1996-2004 Details Activities (1) Areas (1) Regions (0) Abstract: Local-earthquake tomographic images were calculated for each of the years 1996 - 2004 using arrival times from the U.S. Navy's permanent seismometer network at the Coso geothermal area, California. The results show irregular strengthening with time of the wave-speed ratio VP/VS at shallow depths. These changes result predominately from progressive relative increase in VS with respect to VP, and could result from processes associated with geothermal operations such as decrease in fluid pressure

242

Time-dependent seismic tomography of the Coso geothermal area, 1996-2004 |  

Open Energy Info (EERE)

of the Coso geothermal area, 1996-2004 of the Coso geothermal area, 1996-2004 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Time-dependent seismic tomography of the Coso geothermal area, 1996-2004 Details Activities (1) Areas (1) Regions (0) Abstract: Local-earthquake tomographic images were calculated for each of the years 1996 - 2004 using arrival times from the U.S. Navy's permanent seismometer network at the Coso geothermal area, California. The results show irregular strengthening with time of the wave-speed ratio VP/VS at shallow depths. These changes result predominately from progressive relative increase in VS with respect to VP, and could result from processes associated with geothermal operations such as decrease in fluid pressure and the drying of argillaceous minerals such as illite.

243

Micro-Earthquake At Roosevelt Hot Springs Geothermal Area (1982) | Open  

Open Energy Info (EERE)

Geothermal Area (1982) Geothermal Area (1982) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Roosevelt Hot Springs Geothermal Area (1982) Exploration Activity Details Location Roosevelt Hot Springs Geothermal Area Exploration Technique Micro-Earthquake Activity Date 1982 Usefulness not indicated DOE-funding Unknown Exploration Basis Develop a background seismicity before power production begins Notes Local seismic networks were established to monitor the background seismicity prior to initiation of geothermal power production. The Raft River study area is currently seismically quiet down to the level of approximately magnitude one. References Zandt, G.; Mcpherson, L.; Schaff, S.; Olsen, S. (1 May 1982) Seismic baseline and induction studies- Roosevelt Hot Springs, Utah and

244

Self-configuring localization systems: Design and Experimental Evaluation  

Science Conference Proceedings (OSTI)

Embedded networked sensors promise to revolutionize the way we interact with our physical environment and require scalable, ad hoc deployable and energy-efficient node localization/positioning.This paper describes the motivation, design, implementation, ... Keywords: Location, localization, self-configuration, sensor networks

Nirupama Bulusu; John Heidemann; Deborah Estrin; Tommy Tran

2004-02-01T23:59:59.000Z

245

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

246

Research Areas  

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

Research Areas Print Research Areas Print Scientists from a wide variety of fields come to the ALS to perform experiements. Listed below are some of the most common research areas covered by ALS beamlines. Below each heading are a few examples of the specific types of topics included in that category. Click on a heading to learn more about that research area at the ALS. Energy Science Photovoltaics, photosynthesis, biofuels, energy storage, combustion, catalysis, carbon capture/sequestration. Bioscience General biology, structural biology. Materials/Condensed Matter Correlated materials, nanomaterials, magnetism, polymers, semiconductors, water, advanced materials. Physics Atomic, molecular, and optical (AMO) physics; accelerator physics. Chemistry Surfaces/interfaces, catalysts, chemical dynamics (gas-phase chemistry), crystallography, physical chemistry.

247

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

248

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

Science Conference Proceedings (OSTI)

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

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

2009-11-30T23:59:59.000Z

249

Environmental Noise Source Classification Using Neural Networks  

Science Conference Proceedings (OSTI)

Neural networks have been applied to many interesting problems in different areas including noise identification/recognition. With this study, we studied noise classification using artificial neural networks (ANN). Three commonly encountered non-stationary ... Keywords: ACF-based feature parameter, environmental noise classification, Neural Networks (ANN)

Buket D. Barkana; Inci Saricicek

2010-04-01T23:59:59.000Z

250

The Local Dimension of Energy  

E-Print Network (OSTI)

 expensive for one entity to consider it alone. In  Sweden during the early  1970s,  DH  networks  were  heavily  dependent  on  fossil  fuels  but  now  over  seventy  percent of fuel for DH comes from renewable feedstocks such as biomass and municipal  waste. In Finland, aside from a small... made by successful local governments can be narrowed to three key factors. First, they have all recognised the co-benefits of a local energy strategy: a reduction in fuel poverty, increased employment, improved quality of life and mitigation...

Kelly, Scott

2011-01-31T23:59:59.000Z

251

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

252

Blasting Vibration Forecast Base on Neural Network  

Science Conference Proceedings (OSTI)

The influence of blasting vibration to surroundings around the blasting area can not be ignored, in order to guarantee the safety of surroundings around blasting area, blasting vibration forecasting model based on neural network is established by improved ... Keywords: Blasting vibration, Neural network, Forecast

Haiwang Ye; Fang Liu; Jian Chang; Lin Feng; Yang Wang; Peng Yao; Kai Wu

2010-10-01T23:59:59.000Z

253

Enabling Long-Lived Sensor Networks Through Solar Energy Harvesting  

E-Print Network (OSTI)

Sensor Networks through Solar Energy Harvesting Jason Hsu,Heliomote A integrated solar energy harvesting and storageYellow bar represent solar energy received locally Solar

Jason Hsu; Sadaf Zahedi; Jonathan Friedman; Aman Kansal; Vijay Raghunathan; Mani Srivastava

2005-01-01T23:59:59.000Z

254

Better Buildings Neighborhood Program: Local Contractors Face an Enviable  

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

Local Local Contractors Face an Enviable Challenge to someone by E-mail Share Better Buildings Neighborhood Program: Local Contractors Face an Enviable Challenge on Facebook Tweet about Better Buildings Neighborhood Program: Local Contractors Face an Enviable Challenge on Twitter Bookmark Better Buildings Neighborhood Program: Local Contractors Face an Enviable Challenge on Google Bookmark Better Buildings Neighborhood Program: Local Contractors Face an Enviable Challenge on Delicious Rank Better Buildings Neighborhood Program: Local Contractors Face an Enviable Challenge on Digg Find More places to share Better Buildings Neighborhood Program: Local Contractors Face an Enviable Challenge on AddThis.com... Better Buildings Residential Network Progress Stories Interviews

255

Radiological Areas  

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

Revision to Clearance Policy Associated with Recycle of Scrap Metals Originating from Revision to Clearance Policy Associated with Recycle of Scrap Metals Originating from Radiological Areas On July 13, 2000, the Secretary of Energy imposed an agency-wide suspension on the unrestricted release of scrap metal originating from radiological areas at Department of Energy (DOE) facilities for the purpose of recycling. The suspension was imposed in response to concerns from the general public and industry groups about the potential effects of radioactivity in or on material released in accordance with requirements established in DOE Order 5400.5, Radiation Protection of the Public and Environment. The suspension was to remain in force until DOE developed and implemented improvements in, and better informed the public about, its release process. In addition, in 2001 the DOE announced its intention to prepare a

256

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

257

A new architectural approach for optical burst switching networks based on a common control channel  

Science Conference Proceedings (OSTI)

The new architectural approach to Optical Burst Switching networks presented here features a common control channel and a node locally maintained network model. The Common Control Channel allows for a fast and efficient broadcast of the network Control ... Keywords: Optical burst switched networks, Optical network architecture

Nuno M. Garcia; Paulo P. Monteiro; MáRio M. Freire; José R. Santos; Przemyslaw Lenkiewicz

2007-11-01T23:59:59.000Z

258

MOCUS: moving object counting using ultrasonic sensor networks  

Science Conference Proceedings (OSTI)

Counting the number of moving objects in a given area has many practical applications. By investigating a series of state-of-the-art technologies, we propose a Moving Object Counting approach using Ultrasonic Sensor networks (MOCUS). ... Keywords: clustering, moving objects, object counting, sensor clusters, ultrasonic sensor networks, ultrasound, wireless networks, wireless sensor networks

Quanbin Chen; Min Gao; Jian Ma; Dian Zhang; Lionel M. Ni; Yunhao Liu

2007-12-01T23:59:59.000Z

259

Vampire Attacks: Draining Life from Wireless Ad Hoc Sensor Networks  

Science Conference Proceedings (OSTI)

Ad hoc low-power wireless networks are an exciting research direction in sensing and pervasive computing. Prior security work in this area has focused primarily on denial of communication at the routing or medium access control levels. This paper explores ... Keywords: Denial of service, security, routing, ad hoc networks, sensor networks, wireless networks

Eugene Y. Vasserman; Nicholas Hopper

2013-02-01T23:59:59.000Z

260

Network flow model for multi-energy systems  

Science Conference Proceedings (OSTI)

This paper describes a novel approach to model networks with multiple energy carrier. The proposed nodal matrix establishes a link between an optimization of enclosed areas and their interconnections via networks. In the envisioned network flow model ... Keywords: energy conversion, energy hubs, grids, line losses, network flow, optimal power flow

Matthias Schulze; Goran Gašparovi?

2010-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

Broadband municipal optical networks in Greece: A suitable business model  

Science Conference Proceedings (OSTI)

This paper proposes a business model for the optimal exploitation of the currently developing broadband metropolitan area networks in Greece. Having recorded and examined relevant international practices, we describe in detail the way that these networks ... Keywords: Broadband infrastructure, Broadband networks business models, Dark fibre, Municipal networks

Christos Bouras; Apostolos Gkamas; John Papagiannopoulos; George Theophilopoulos; Thrasyvoulos Tsiatsos

2009-11-01T23:59:59.000Z

262

Underwater localization based on multicarrier waveforms  

E-Print Network (OSTI)

Abstract—In this paper, we investigate the problem of localizing an underwater sensor node based on message broadcasting from multiple surface nodes. With the time-of-arrival measurements from a DSP-based multicarrier modem, each sensor node localizes itself based on the travel time differences among multiple senders to the receiver. Using one-way message passing, such a solution can scalably accommodate a large number of nodes in a network. We present simulation results as well as preliminary testing results in a swimming pool and in a local lake. Surface buoys with GPS sensors self-localization via acoustic links I.

Patrick Carroll; Shengli Zhou; Hao Zhou; Jun-hong Cui; Peter Willett

2010-01-01T23:59:59.000Z

263

Robot algorithms for localization of multiple emission sources  

Science Conference Proceedings (OSTI)

The problem of time-varying, multisource localization using robotic swarms has received relatively little attention when compared to single-source localization. It involves distinct challenges regarding how to partition the robots during search to ensure ... Keywords: Bayesian filters, Bayesian occupancy mapping, Source localization, biologically inspired algorithms, hill-climbing algorithms, mobile robotic networks, swarm algorithms

Kathleen Mcgill; Stephen Taylor

2011-04-01T23:59:59.000Z

264

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

265

Connected Consumption: The hidden networks of consumption  

E-Print Network (OSTI)

In this paper, we present the Connected Consumption Network (CCN) that allows a community of consumers to collaboratively sense the market from a mobile device, enabling more informed financial decisions in geo-local ...

Reed, David P.

266

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

267

United Nations Population Information Network | Open Energy Information  

Open Energy Info (EERE)

United Nations Population Information Network United Nations Population Information Network Jump to: navigation, search Tool Summary LAUNCH TOOL Name: United Nations Population Information Network Agency/Company /Organization: United Nations Focus Area: People and Policy Resource Type: Dataset Website: www.un.org/popin/ Cost: Free United Nations Population Information Network Screenshot References: United Nations Population Information Network[1] Logo: United Nations Population Information Network The Population Information Network (POPIN) strives to make international, regional and national population information, particularly information available from United Nations sources, easily available to the international community. "The Population Information Network (POPIN) was founded on 9 May 1979, by

268

Quantum Locality?  

Science Conference Proceedings (OSTI)

Robert Griffiths has recently addressed, within the framework of a ‘consistent quantum theory’ (CQT) that he has developed, the issue of whether, as is often claimed, quantum mechanics entails a need for faster-than-light transfers of information over long distances. He argues, on the basis of his examination of certain arguments that claim to demonstrate the existence of such nonlocal influences, that such influences do not exist. However, his examination was restricted mainly to hidden-variable-based arguments that include in their premises some essentially classical-physics-type assumptions that are fundamentally incompatible with the precepts of quantum physics. One cannot logically prove properties of a system by attributing to the system properties alien to that system. Hence Griffiths’ rejection of hidden-variable-based proofs is logically warranted. Griffiths mentions the existence of a certain alternative proof that does not involve hidden variables, and that uses only macroscopically described observable properties. He notes that he had examined in his book proofs of this general kind, and concluded that they provide no evidence for nonlocal influences. But he did not examine the particular proof that he cites. An examination of that particular proof by the method specified by his ‘consistent quantum theory’ shows that the cited proof is valid within that restrictive framework. This necessary existence, within the ‘consistent’ framework, of long range essentially instantaneous influences refutes the claim made by Griffiths that his ‘consistent’ framework is superior to the orthodox quantum theory of von Neumann because it does not entail instantaneous influences. An added section responds to Griffiths’ reply, which cites a litany of ambiguities that seem to restrict, devastatingly, the scope of his CQT formalism, apparently to buttress his claim that my use of that formalism to validate the nonlocality theorem is flawed. But the vagaries that he cites do not upset the proof in question. It is show here in detail why the precise statement of this theorem justifies the specified application of CQT. It is also shown, in response to his challenge, why a putative proof of locality that he has proposed is not valid.

Stapp, Henry

2011-11-10T23:59:59.000Z

269

Acceptance of Lightning Detectors and Localization Systems under Different Damping Conditions  

Science Conference Proceedings (OSTI)

The acceptance of individual lightning detectors, idealized detection networks using both loop antenna and time of arrival techniques, and the Swedish lightning localization network have been investigated. The calculations were based on Weibull-...

Th Schütte; E. Pišler; D. Filipovic; S. Israelsson

1987-09-01T23:59:59.000Z

270

Design Technology for Networked Reconfigurable FPGA Platforms  

E-Print Network (OSTI)

Future networked appliances should be able to download new services or upgrades from the network and execute them locally. This flexibility is typically achieved by processors that can download new software over the network, using JAVA technology. This paper demonstrates that FPGAs are a realistic implementation platform for thin server or client applications. FPGAs can offer the same end-user experience as software based systems, combined with more computational power and lower cost.

S. Guccione; D. Verkest; I. Bolsens

2002-01-01T23:59:59.000Z

271

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

272

Automatic decentralized clustering for wireless sensor networks  

Science Conference Proceedings (OSTI)

We propose a decentralized algorithm for organizing an ad hoc sensor network into clusters. Each sensor uses a random waiting timer and local criteria to determine whether to form a new cluster or to join a current cluster. The algorithm operates without ... Keywords: clustering algorithm, random waiting timer, wireless sensor networks

Chih-Yu Wen; William A. Sethares

2005-10-01T23:59:59.000Z

273

Design, Simulation, and Analysis of Substation Automation Networks  

E-Print Network (OSTI)

Society depends on computer networks for communication. The networks were built to support and facilitate several important applications such as email, web browsing and instant messaging. Recently, there is a significant interest in leveraging modern local and wide area communication networks for improving reliability and performance in critical infrastructures. Emerging critical infrastructure applications, such as smart grid, require a certain degree of reliability and Quality of Service (QoS). Supporting these applications requires network protocols that enable delay sensitive packet delivery and packet prioritization. However, most of the traditional networks are designed to provide best effort service without any support for QoS. The protocols used in these networks do not support packet prioritization, delay requirements and reliability. In this thesis, we focus on the design and analysis of communication protocols for supporting smart grid applications. In particular, we focus on the Substation Automation Systems (SAS). Substations are nodes in the smart grid infrastructure that help the in transportation of power by connecting the transmission and distribution lines. The SAS applications are con figured to operate with minimal human intervention. The SAS monitors the line loads continuously. If the load values are too high and can lead to damage, the SAS declares those conditions as faults. On fault detection, the SAS must take care of the communication with the relay to open the circuit to prevent any damage. These messages are of high priority and require reliable, delay sensitive delivery. There is a threshold for the delay of these messages, and a slight increase in the delay above the threshold might cause severe damages. Along with such high priority messages, the SAS has a lot of background traffic as well. In spite of the background traffic, the substation network must take care of delivering the priority messages on time. Hence, the network plays a vital role in the operation of the substation. Networks designed for such applications should be analyzed carefully to make sure that the requirements are met properly. We analyzed and compared the performance of the SAS under di erent network topologies. By observing the characteristics of the existing architectures, we came up with new architectures that perform better. We have suggested several modi cations to existing solutions that allow significant improvement in the performance of the existing solutions.

Kembanur Natarajan, Elangovan

2011-05-01T23:59:59.000Z

274

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

275

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

276

Advanced concepts in large-scale network simulation  

Science Conference Proceedings (OSTI)

This tutorial paper reviews existing concepts and future directions in selected areas related to simulation of large-scale networks. It covers specifically topics in traffic modeling, simulation of routing, network emulation, and real-time simulation.

David M. Nicol; Michael Liljenstam; Jason Liu

2005-12-01T23:59:59.000Z

277

Lab activities requiring minimal resources for courses in computer networking  

Science Conference Proceedings (OSTI)

Computer networking is an area that recently has experienced a dramatic increase in interest. This has been fueled by the widespread use of the Internet along with wireless and mobile computing devices. The importance of networking has been confirmed ...

David R. Surma

2005-10-01T23:59:59.000Z

278

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

279

Southern CA Area | Open Energy Information  

Open Energy Info (EERE)

Southern CA Area Southern CA Area Jump to: navigation, search Contents 1 Clean Energy Clusters in the Southern CA Area 1.1 Products and Services in the Southern CA Area 1.2 Research and Development Institutions in the Southern CA Area 1.3 Networking Organizations in the Southern CA Area 1.4 Investors and Financial Organizations in the Southern CA Area 1.5 Policy Organizations in the Southern CA Area Clean Energy Clusters in the Southern CA Area Products and Services in the Southern CA Area Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":500,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

280

Pacific Northwest Area | Open Energy Information  

Open Energy Info (EERE)

Pacific Northwest Area Pacific Northwest Area Jump to: navigation, search Contents 1 Clean Energy Clusters in the Pacific Northwest Area 1.1 Products and Services in the Pacific Northwest Area 1.2 Research and Development Institutions in the Pacific Northwest Area 1.3 Networking Organizations in the Pacific Northwest Area 1.4 Investors and Financial Organizations in the Pacific Northwest Area 1.5 Policy Organizations in the Pacific Northwest Area Clean Energy Clusters in the Pacific Northwest Area Products and Services in the Pacific Northwest Area Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":500,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

Note: This page contains sample records for the topic "local area 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

Greater Boston Area | Open Energy Information  

Open Energy Info (EERE)

Greater Boston Area Greater Boston Area Jump to: navigation, search Contents 1 Clean Energy Clusters in the Greater Boston Area 1.1 Products and Services in the Greater Boston Area 1.2 Research and Development Institutions in the Greater Boston Area 1.3 Networking Organizations in the Greater Boston Area 1.4 Investors and Financial Organizations in the Greater Boston Area 1.5 Policy Organizations in the Greater Boston Area Clean Energy Clusters in the Greater Boston Area Products and Services in the Greater Boston Area Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":500,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

282

Organizations and Networks | Open Energy Information  

Open Energy Info (EERE)

Organizations and Networks Organizations and Networks (Redirected from Gateway:International/Networks) Jump to: navigation, search Registered Technical and Research Organizations Networks Climate Eval "The website promotes active debate on areas relevant to evaluation of climate change and development evaluation by bringing relevant topics to a peer to peer discussion forum." Coordinated Low Emissions Assistance Network (CLEAN) CLEAN aims to improve communication and coordination by bringing together national and international organizations that are assisting developing countries with preparation and implementation of low greenhouse gas emission plans and strategies. This includes support for technology needs assessments, for low carbon and clean energy development plans, and

283

Transactional Network Platform: Applications  

Science Conference Proceedings (OSTI)

In FY13, Pacific Northwest National Laboratory (PNNL) with funding from the Department of Energy’s (DOE’s) 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

284

EOC requirements at state and local levels. Final report  

Science Conference Proceedings (OSTI)

Emergency Operating Center functions and requirements at local, area, sub-State, and State levels are analyzed. EOC roles in times of normalcy, in natural disasters with and without warning, and in the crisis, in-shelter, and postattack phases of nuclear war are examined and compared. Three approaches to a backbone nationwide direction and control network are reviewed. A sub-State system based on existing State Highway department districts is proposed and correlations with other backbone concepts evaluated. In a companion manual, a guide to developing an EOC standard operating procedure is presented, based on the foregoing EOC requirements analysis. The manual includes a sample EOC Standard Operating Procedure for a county.

Paxton, K.F.; Goshe, F.; Rainey, C.T.

1980-08-01T23:59:59.000Z

285

Resilient synchronization in robust networked multi-agent systems  

Science Conference Proceedings (OSTI)

In this paper, we study local interaction rules that enable a network of dynamic agents to synchronize to a common zero-input state trajectory despite the malicious influence of a subset of adversary agents. The agents in the networked system influence ... Keywords: adversary, networked multi-agent system, resilience, synchronization

Heath J. LeBlanc; Xenofon D. Koutsoukos

2013-04-01T23:59:59.000Z

286

Underwater sensor networking: Research challenges and potential applications  

E-Print Network (OSTI)

This report summarizes our research directions in underwater sensor networks. We highlight potential applications to off-shore oilfields for seismic monitoring, equipment monitoring, and underwater robotics. We identify research directions in short-range acoustic communications, MAC, time synchronization, and localization protocols for highlatency acoustic networks, long-duration network sleeping, and application-level data scheduling. 1

John Heidemann; Yuan Li; Affan Syed; Jack Wills; Wei Ye

2006-01-01T23:59:59.000Z

287

Development of a mult-objective strategic management approach to improve decisions for pavement management practices in local agencies  

E-Print Network (OSTI)

Multiple objectives are often used by agencies trying to manage pavement networks. Often alternative investment strategies can accomplish the agencies’ target objectives. If the goal is to achieve the target objectives at the minimum cost, an approach is needed to assist agencies in identifying investment strategies capable of meeting the targets while minimizing costs. The approach used by the agency should not be limited to an analytical method to mathematically solve the funding allocation problem. Finding mechanisms to ensure the sustainability and efficiency of the investment strategy over time is a great challenge that needs to be addressed by the approach. The challenge is even greater for local agencies where resources are usually limited. This research develops a multi-objective strategic management approach oriented to improving decisions for pavement management practices in local agencies. In this approach, target objectives are tied to key pavement network parameters in the management process. A methodology to identify the best combination of projects to meet target objectives at the minimum cost while maximizing treatment effectiveness is provided as a result of the research. Concepts from the pavement management program (PMP) of the Metropolitan Transportation Commission (MTC) of the San Francisco Bay Area were used as a basis for developing the methodology. Four pavement network parameters are considered for setting the target objectives over the agency’s planning horizon: the average network pavement condition index (PCI), average network remaining life, percent of the pavement network in good condition, and percent of the pavement network in poor and very poor condition. Results from a case study show that funding allocation methods influence the allocation of preservation and rehabilitation funds among pavement network groups, affecting budget estimates and future condition of the pavement network. It is also concluded that the use of mechanisms that facilitate data integration and the flow of knowledge across management levels can contribute to making better informed decisions. Hence, the adoption of the multi-objective strategic pavement management approach developed in this dissertation should lead to identifying more efficient investment strategies for achieving the pavement network state desired by a local agency at a minimum cost.

Chang Albitres, Carlos Martin

2007-05-01T23:59:59.000Z

288

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

289

Characterization of the Weatherization Assistance Program network  

Science Conference Proceedings (OSTI)

The Characterization of the Weatherization Assistance Program (WAP) Network was designed to describe the national network of State and local agencies that provide WAP services to qualifying low-income households. The objective of this study was to profile the current WAP network. To achieve the objective, two national surveys were conducted: one survey collected data from 49 State WAP agencies (including the coterminous 48 States and the District of Columbia), and the second survey collected data from 920 (or 81 percent) of the local WAP agencies.

Mihlmester, P.E.; Koehler, W.C. Jr.; Beyer, M.A. (Aspen Systems Corp., Oak Ridge, TN (United States). Applied Management Sciences Div.); Brown, M.A. (Oak Ridge National Lab., TN (United States)); Beschen, D.A. Jr. (Department of Energy, Washington, DC (United States). Office of Weatherization Assistance Programs)

1992-02-01T23:59:59.000Z

290

An auditory localization model based on high-frequency spectral cues  

Science Conference Proceedings (OSTI)

noise provides robustness to input errors. ... spectral cues, which can be detected by the human local- .... (DMM), error back-propagation) for networks with sin-.

291

Transportation energy contingency plans for rural areas and small communities  

SciTech Connect

This study was undertaken to determine the most effective transportation fuel conservation measures which could be implemented by such areas during energy emergencies. The study involved a review of the transportation fuels contingency planning literature, state transportation energy contingency plans (with special emphasis on that for Missouri) and transportation studies recently conducted in rural Missouri, together with a survey by mail of local government officials, telephone interviews with rural residents and participation in two community-wide attitude surveys in the Meramec Region of Missouri. On the basis of the review of the literature and the results of the surveys, recommendations have been made on both the strategies that could be implemented to reduce gasoline consumption in rural areas and the institutional arrangements required for coping with a transportation fuels shortage. For small communities and rural areas of Missouri, it was specifically recommended that the multi-county regional planning commission should become the lead agency in implementing and coordinating fuel conservation measures in the event of a serious petroleum shortfall. Each regional planning commission would serve as a single focal point in communicating with the State Energy Office in behalf of its numerous county and city members. Furthermore, the existing statewide network of emergency preparedness officers should be utilized to inventory local fuel distribution services, monitor local service station operating practices and to serve motorists who might be stranded without fuel. Finally, the University of Missouri Cooperative Extension Service should offer educational programs covering topics as fuel conserving driving techniques, vehicle maintenance, trip planning, and ridesharing.

Dare, C.E.

1981-12-01T23:59:59.000Z

292

A comprehensive solution to ATM network planning and bandwidth management using Genetic Algorithm  

Science Conference Proceedings (OSTI)

Wireless Asynchronous Transfer Mode (ATM) is fast becoming an option in the telecommunication area and consequently there is a renewed interest in developing broadband integrated service of digital network technologies namely ATM. In order to ... Keywords: ATM networks, ATM planning, GAs, asynchronous transfer mode, bandwidth management, genetic algorithms, network design, network planning, optimisation, passive optical networks, wireless ATM

Susmi Routray; Arun Mohan Sherry; B. V. R. Reddy

2008-03-01T23:59:59.000Z

293

Network partitioning and self-sizing methods for QoS management with autonomic characteristics  

Science Conference Proceedings (OSTI)

The increasing complexity, heterogeneity and unpredictability of networks make the task of managing these systems highly complex. The autonomic computing paradigm brings innovative solutions to the network management area with new adaptable and "clever" ... Keywords: LSPs, MPLS, autonomic computing, bandwidth allocation, computational complexity, network management, network partitioning, quality of service, self-sizing networks

Romildo Martins Da Silva Bezerra; Joberto Sérgio Barbosa Martins

2009-09-01T23:59:59.000Z

294

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

295

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

296

Combinatorial mobile IP: a new efficient mobility management using minimized paging and local registration  

E-Print Network (OSTI)

Abstract. Combinatorial Mobile IP, a new mobility management scheme for Mobile IP, is proposed and analyzed. We present how to adopt mobility management schemes on cellular networks and adapt them in Mobile IP without disrupting the nature of the Internet. We apply widely used mobility management schemes such as hierarchical architecture and paging in cellular networks to Mobile IP. We restrict paging to the area that has to be paged using local registrations. In this way, we show that the total signaling costs of Combinatorial Mobile IP are reduced compared to other micro-mobility protocols such as Mobile IP Regional Registration and P-MIP. Random walk on a connected graph is used to analyze the performance of Combinatorial Mobile IP.

Taehwan Choi; Laeyoung Kim; Jeongeun Nah; Jooseok Song

2004-01-01T23:59:59.000Z

297

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

298

Fact Sheet: Better Buildings Residential Network  

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

Sheet Sheet BETTER BUILDINGS RESIDENTIAL NETWORK Learn more at betterbuildings.energy.gov/bbrn What Is the Residential 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 number of American homes that are energy efficient. Since 2010, the U.S. Department of Energy (DOE), local Better Buildings Neighborhood Program partners, and Home Performance with ENERGY STAR ® Sponsors have leveraged over $1 billion in federal funding and local resources to build more energy-efficient communities. DOE is now expanding this network of residential energy efficiency programs and partners to new members. Who Should Join? Network membership is open to all organizations that are committed to accelerating the pace of energy

299

Encoding of brain state changes in local field potentials modulated by motor behaviors  

E-Print Network (OSTI)

Local field potentials (LFPs) measure aggregate neural activity resulting from the coordinated firing of neurons within a local network. We hypothesized that state parameters associated with the underlying brain dynamics ...

Stamoulis, Catherine

300

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

Note: This page contains sample records for the topic "local area 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

Virginia Regional Seismic Network. Final report (1986--1992)  

SciTech Connect

In 1986, the Virginia Regional Seismic Network was one of the few fully calibrated digital seismic networks in the United States. Continued operation has resulted in the archival of signals from 2,000+ local, regional and teleseismic sources. Seismotectonic studies of the central Virginia seismic zone showed the activity in the western part to be related to a large antiformal structure while seismicity in the eastern portion is associated spatially with dike swarms. The eastern Tennessee seismic zone extends over a 300x50 km area and is the result of a compressive stress field acting at the intersection between two large crustal blocks. Hydroseismicity, which proposes a significant role for meteoric water in intraplate seismogenesis, found support in the observation of common cyclicities between streamflow and earthquake strain data. Seismic hazard studies have provided the following results: (1) Damage areas in the eastern United States are three to five times larger than those observed in the west. (2) Judged solely on the basis of cataloged earthquake recurrence rates, the next major shock in the southeast region will probably occur outside the Charleston, South Carolina area. (3) Investigations yielded necessary hazard parameters (for example, maximum magnitudes) for several sites in the southeast. Basic to these investigations was the development and maintenance of several seismological data bases.

Bollinger, G.A.; Sibol, M.S.; Chapman, M.C.; Snoke, J.A. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (US). Seismological Observatory

1993-07-01T23:59:59.000Z

302

Radio Planning of Energy-Aware Cellular Networks  

E-Print Network (OSTI)

I. INTRODUCTION. We are witnessing a growing interest in the area of green networking given the importance of environmental and energy related issues for  ...

303

The Computational Materials and Chemical Sciences Network (CMCSN...  

Office of Science (SC) Website

The Computational Materials and Chemical Sciences Network (CMCSN) Materials Sciences and Engineering (MSE) Division MSE Home About Research Areas Energy Frontier Research Centers...

304

Intelligent deployment strategies for passive underwater sensor networks.  

E-Print Network (OSTI)

??Passive underwater sensor networks are often used to monitor a general area of the ocean, a port or military installation, or to detect underwater vehicles… (more)

Golen, Erik; Yuan, B; Shenoy, N

2009-01-01T23:59:59.000Z

305

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...

306

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...

307

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

308

Real-time volcanic earthquake localization  

Science Conference Proceedings (OSTI)

Keywords: in-network distributed processing, multi-tier sensor network architecture, sensor networks, volcano monitoring

Geoffrey Werner-Allen; Patrick Swieskowski; Matt Welsh

2006-10-01T23:59:59.000Z

309

Interpolation Uncertainties Across the ARM SGP Area  

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

Interpolation Uncertainties Across the ARM SGP Area Interpolation Uncertainties Across the ARM SGP Area J. E. Christy, C. N. Long, and T. R. Shippert Pacific Northwest National Laboratory Richland, Washington Interpolation Grids Across the SGP Network Area The U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Program operates a network of surface radiation measurement sites across north central Oklahoma and south central Kansas. This Southern Great Plains (SGP) network consists of 21 sites unevenly spaced from 95.5 to 99.5 degrees west longitude, and from 34.5 to 38.5 degrees north latitude. We use the technique outlined by Long and Ackerman (2000) and Long et al. (1999) to infer continuous estimates of clear-sky downwelling shortwave (SW) irradiance, SW cloud effect, and daylight fractional sky cover for each

310

EERE Network News | Open Energy Information  

Open Energy Info (EERE)

EERE Network News EERE Network News Jump to: navigation, search Tool Summary LAUNCH TOOL Name: EERE Network News Agency/Company /Organization: United States Department of Energy Sector: Energy Focus Area: Energy Efficiency, Renewable Energy Website: apps1.eere.energy.gov/news/enn.cfm References: EERE Network News: Homepage[1] Logo: EERE Network News This article is a stub. You can help OpenEI by expanding it. EERE Network News is an electronic newsletter that covers news and events related to energy efficiency and renewable energy. It is published by the United States Department of Energy. Recent Stories Failed to load RSS feed from http://apps1.eere.energy.gov/news/rss/enn.xml|short|max=5: There was a problem during the HTTP request: 403 Forbidden References ↑ "EERE Network News: Homepage"

311

Critical Areas Act of 1973 (Minnesota)  

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

This Act applies to certain areas of the state with important historic, cultural, or esthetic values, or natural systems with functions of greater than local significance. Plans for a given...

312

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.

313

A Survey of Statistical Network Models  

Science Conference Proceedings (OSTI)

Networks are ubiquitous in science and have become a focal point for discussion in everyday life. Formal statistical models for the analysis of network data have emerged as a major topic of interest in diverse areas of study, and most of these involve ...

Anna Goldenberg; Alice X. Zheng; Stephen E. Fienberg; Edoardo M. Airoldi

2010-02-01T23:59:59.000Z

314

Wireless sensor networks for healthcare: A survey  

Science Conference Proceedings (OSTI)

Becoming mature enough to be used for improving the quality of life, wireless sensor network technologies are considered as one of the key research areas in computer science and healthcare application industries. The pervasive healthcare systems provide ... Keywords: Care for elderly, Children and chronically ill, Pervasive healthcare, Wireless sensor networks

Hande Alemdar; Cem Ersoy

2010-10-01T23:59:59.000Z

315

Optimization neural network for solving flow problems  

Science Conference Proceedings (OSTI)

This paper describes a neural network for solving flow problems, which are of interest in many areas of application as in fuel, hydro, and electric power scheduling. The neural network consist of two layers: a hidden layer and an output layer. The hidden ...

R. Perfetti

1995-09-01T23:59:59.000Z

316

Scheduling in multihop WiMAX networks  

Science Conference Proceedings (OSTI)

IEEE 802.16, popularly known as WiMAX, is at the forefront of the technology drive because of the growing demand for high-speed wireless broadband networks. Multihop WiMAX networks are particularly useful as they increase the coverage area without the ...

Debalina Ghosh; Ashima Gupta; Prasant Mohapatra

2008-04-01T23:59:59.000Z

317

A new generic method for the semi-automatic extraction of river and road networks in low and mid-resolution satellite images  

SciTech Connect

This paper addresses the problem of semi-automatic extraction of road or hydrographic networks in satellite images. For that purpose, we propose an approach combining concepts arising from mathematical morphology and hydrology. The method exploits both geometrical and topological characteristics of rivers/roads and their tributaries in order to reconstruct the complete networks. It assumes that the images satisfy the following two general assumptions, which are the minimum conditions for a road/river network to be identifiable and are usually verified in low- to mid-resolution satellite images: (i) visual constraint: most pixels composing the network have similar spectral signature that is distinguishable from most of the surrounding areas; (ii) geometric constraint: a line is a region that is relatively long and narrow, compared with other objects in the image. While this approach fully exploits local (roads/rivers are modeled as elongated regions with a smooth spectral signature in the image and a maximum width) and global (they are structured like a tree) characteristics of the networks, further directional information about the image structures is incorporated. Namely, an appropriate anisotropic metric is designed by using both the characteristic features of the target network and the eigen-decomposition of the gradient structure tensor of the image. Following, the geodesic propagation from a given network seed with this metric is combined with hydrological operators for overland flow simulation to extract the paths which contain most line evidence and identify them with the target network.

Grazzini, Jacopo [Los Alamos National Laboratory; Dillard, Scott [PNNL; Soille, Pierre [EC JRC

2010-10-21T23:59:59.000Z

318

NREL: State and Local Activities - Related Links  

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

Related Links Related Links Find information about U.S. Department of Energy (DOE) and other state and local clean energy technical assistance and deployment programs and activities. State and Local Technical Assistance Programs NREL provides technical assistance to state and local energy projects through the following initiatives and programs. DOE Green Power Network DOE Weatherization & Intergovernmental Program U.S. Department of Agriculture Rural Energy for America Program For more information about NREL's role, contact Dave Peterson. State and Local Deployment Programs NREL strives to increase the scale of clean energy technology deployment in U.S. states and localities by supporting these technology deployment projects and initiatives. DOE Biomass Program DOE Builders Challenge

319

Sensor Networks in Pervasive Healthcare Computing  

Science Conference Proceedings (OSTI)

Advances in wireless sensor networking (WSN) have opened up new opportunities in distributed informatics. Pervasive healthcare, based on WSN, is an emerging technology area with great potential of future applicability. Small size devices capable of sensing, ...

Zhilbert Tafa

2010-07-01T23:59:59.000Z

320

CogNet: an architectural foundation for experimental cognitive radio networks within the future internet  

Science Conference Proceedings (OSTI)

This paper describes a framework for research on architectural tradeoffs and protocol designs for cognitive radio networks at both the local network and the global internetwork levels. Several key architectural issues for cognitive radio networks are ... Keywords: cognitive radio, internet architecture, network protocols, protocols

Dipankar Raychaudhuri; Narayan B. Mandayam; Joseph B. Evans; Benjamin J. Ewy; Srinivasan Seshan; Peter Steenkiste

2006-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

Exponential random graph modeling of communication networks to understand organizational crisis  

Science Conference Proceedings (OSTI)

In recent social network studies, exponential random graph models have been used comprehensively to model global social network structure as a function of their local features. In this study, we describe the exponential random graph models and demonstrate ... Keywords: email communications, exponential random graph models, organizational disintegration, p* models, social networks, statistical models for social networks

Jafar Hamra; Shahadat Uddin; Liaquat Hossain

2011-05-01T23:59:59.000Z

322

The DRL Underwater Sensor Network: Supporting Dual Communications, Sensing, and Mobility  

E-Print Network (OSTI)

The DRL Underwater Sensor Network: Supporting Dual Communications, Sensing, and Mobility Iuliu Vasilescu, Carrick Detweiler and Daniela Rus We propose to demonstrate the underwater sensor network are anchored with weights and form a static underwater network. This network self-localizes a range based 3D

Farritor, Shane

323

Position-based cluster routing protocol for mobile ad hoc networks  

Science Conference Proceedings (OSTI)

Some of the proposed mobile ad hoc network routing algorithms require maintaining a global network state at each node. The global state is always an approximation of the current network state due to the non-negligible delay of propagating local state. ... Keywords: GPS, QoS, mobile ad hoc network, multicasting, position-based routing protocol

Chao-Cheng Shih; Tzay-Farn Shih

2006-07-01T23:59:59.000Z

324

Rerouting in advance reservation networks  

Science Conference Proceedings (OSTI)

The advance reservation of network connections is an area of growing interest and a range of service models and algorithms have been proposed to achieve various scheduling objectives, i.e., including optimization-based strategies and heuristic schemes. ... Keywords: Advance reservation, Bandwidth migration, Load-balancing, Rerouting

Chongyang Xie; Hamed Alazemi; Nasir Ghani

2012-07-01T23:59:59.000Z

325

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

326

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

327

Northern Area Rural Power Distribution Project LAO: NOTHERN AREA RURAL POWER DISTRIBUTION  

E-Print Network (OSTI)

To enable Electricitè du Laos (EdL) to extend its northern grid, the Asian Development Bank (ADB) is assisting EdL in the construction of a backbone high-voltage transmission network through a Power Transmission and Distribution (PTD) Project 1. The network facilities consist of 115-kV lines from Nam Leuk to Xieng Khouang, Xieng Ngeun to Xayaburi, and Thalat to Muang Feuang and 115/22 kV substations at the end of each line. By the completion of this Project in mid 2003, these backbone lines will permit further high-voltage extension of the northern grid while the substations will enable expanded coverage at 22-kV or 34.5-kV distribution level. The project objectives are to (i) extend the transmission and distribution system in the Northern rural area to provide electricity to rural low-income communities, and to improve their living standards and local economic conditions; (ii) strengthen EdL’s project management ability and improve operational efficiency. The scope of the Project includes the following components: Extension of high voltage 115 kV transmission lines with a total length of about 303 km, including 173 km line from Louang Prabang to Oudomxai, and 79 km line from Oudomxai to Louang Namtha, 46 km line from Hin Heup to Vang Vieng, and 5 km line from Nam Ngum to Thalat; Construction of 115/34.5/22 kV substations at Oudomxai, Louang Namtha, Luang Prabang (extension), “T ” tap at Hin Heup substation, “Interface ” at Xaignabouli and Phonsavan substations and some extension work at Vang Vieng and Nam Ngum; Erection of mid-voltage (34.5/22 kV) distribution lines with a total length of about 1,009 km, distribution transformers of 237 sets, and electricity connection of approximately 33,800 households in 342 villages; Clearance of unexploded ordnance (UXO), Miscellaneous works including benefit monitoring program, land acquisition and compensation

Short Resettlement Plan; Short Resettlement Plan; Project Description

2002-01-01T23:59:59.000Z

328

A European Supergrid for Renewable Energy: Local Impacts and...  

Open Energy Info (EERE)

Energy: Local Impacts and Far-Reaching Challenges Focus Area: Renewable Energy Topics: Market Analysis Website: www.sciencedirect.comsciencearticlepiiS0959652611002447...

329

Lambda Station: On-demand flow based routing for data intensive Grid applications over multitopology networks  

SciTech Connect

Lambda Station is an ongoing project of Fermi National Accelerator Laboratory and the California Institute of Technology. The goal of this project is to design, develop and deploy network services for path selection, admission control and flow based forwarding of traffic among data-intensive Grid applications such as are used in High Energy Physics and other communities. Lambda Station deals with the last-mile problem in local area networks, connecting production clusters through a rich array of wide area networks. Selective forwarding of traffic is controlled dynamically at the demand of applications. This paper introduces the motivation of this project, design principles and current status. Integration of Lambda Station client API with the essential Grid middleware such as the dCache/SRM Storage Resource Manager is also described. Finally, the results of applying Lambda Station services to development and production clusters at Fermilab and Caltech over advanced networks such as DOE's UltraScience Net and NSF's UltraLight is covered.

Bobyshev, A.; Crawford, M.; DeMar, P.; Grigaliunas, V.; Grigoriev, M.; Moibenko, A.; Petravick, D.; Rechenmacher, R.; /Fermilab; Newman, H.; Bunn, J.; Van Lingen, F.; Nae, D.; Ravot, S.; Steenberg, C.; Su, X.; Thomas, M.; Xia, Y.; /Caltech

2006-08-01T23:59:59.000Z

330

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

331

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

332

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

333

Performance of wireless sensor networks under random node failures  

SciTech Connect

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

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

2011-01-28T23:59:59.000Z

334

Discovering global patterns in linguistic networks through spectral analysis: a case study of the consonant inventories  

Science Conference Proceedings (OSTI)

Recent research has shown that language and the socio-cognitive phenomena associated with it can be aptly modeled and visualized through networks of linguistic entities. However, most of the existing works on linguistic networks focus only on the local ...

Animesh Mukherjee; Monojit Choudhury; Ravi Kannan

2009-03-01T23:59:59.000Z

335

Fault tolerance in ZigBee wireless sensor networks  

Science Conference Proceedings (OSTI)

Wireless sensor networks (WSN) based on the IEEE 802.15.4 Personal Area Network standard are finding increasing use in the home automation and emerging smart energy markets. The network and application layers, based on the ZigBee 2007 PRO Standard, provide ...

Richard Alena; Ray Gilstrap; Jarren Baldwin; Thom Stone; Pete Wilson

2011-03-01T23:59:59.000Z

336

Energy efficient wireless Internet access with cooperative cellular networks  

Science Conference Proceedings (OSTI)

In this paper we study the energy-aware cooperative management of the cellular access networks of the operators that offer service over the same area. In particular, we evaluate the amount of energy that can be saved by using all networks in high traffic ... Keywords: Cellular systems, Energy efficiency, Green networking

Marco Ajmone Marsan; Michela Meo

2011-02-01T23:59:59.000Z

337

A case for bufferless routing in on-chip networks  

Science Conference Proceedings (OSTI)

Buffers in on-chip networks consume significant energy, occupy chip area, and increase design complexity. In this paper, we make a case for a new approach to designing on-chip interconnection networks that eliminates the need for buffers for routing ... Keywords: memory systems, multi-core, on-chip networks, routing

Thomas Moscibroda; Onur Mutlu

2009-06-01T23:59:59.000Z

338

Base line for determining local, small-scale vertical movements in Louisiana  

DOE Green Energy (OSTI)

Subsidence in Louisiana is a result of many factors ranging from local, man-induced to regional, large-scale processes. The measurement of local, man-induced subsidence is especially critical in areas with high rates of land loss. In order to measure local vertical movement, absolute historical geodetic movements have been estimated by adjusting all movements along the first-order vertical control network from northeast to southwest Louisiana as related to the Monroe Uplift. The adjustment will serve as a base line by which local subsidence or uplift can be measured. A generalized trend of increasing subsidence to the south in Louisiana is probably a reflection of increasing sediment thickness and weight toward the AXIS of the Gulf Coast Basin. Anomalous values as low as -17.6 mm/y occur superjacent to the position of Pleistocene and Holocene fluvial elements. Positive movement, up to +4.1 mm/y, has been found associated with the Iberian structural axis in south-central Louisiana. Land subsidence due to natural causes may far outweigh subsidence resulting from fluid withdrawal or depressurization of geopressured aquifers. The effects of regional and local natural processes should not be underestimated in any systematic approach to measuring subsidence. 13 references, 7 figures.

Trahan, D.B.

1983-01-01T23:59:59.000Z

339

Preliminary systems engineering evaluations for the National Ecological Observatory Network.  

Science Conference Proceedings (OSTI)

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

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

2008-11-01T23:59:59.000Z

340

RadNet: Open network protocol for radiation data  

SciTech Connect

Safeguards instrumentation is increasingly being incorporated into remote monitoring applications. In the past, vendors of radiation monitoring instruments typically provided the tools for uploading the monitoring data to a host. However, the proprietary nature of communication protocols lends itself to increased computer support needs and increased installation expenses. As a result, a working group of suppliers and customers of radiation monitoring instruments defined an open network protocol for transferring packets on a local area network from radiation monitoring equipment to network hosts. The protocol was termed RadNet. While it is now primarily used for health physics instruments, RadNet`s flexibility and strength make it ideal for remote monitoring of nuclear materials. The incorporation of standard, open protocols ensures that future work will not render present work obsolete; because RadNet utilizes standard Internet protocols, and is itself a non-proprietary standard. The use of industry standards also simplifies the development and implementation of ancillary services, e.g. E-main generation or even pager systems.

Rees, B.; Olson, K. [Los Alamos National Lab., NM (United States); Beckes-Talcott, J.; Kadner, S.; Wenderlich, T.; Hoy, M.; Doyle, W. [Aquila Technologies Group, Inc., Albuquerque, NM (United States); Koskelo, M. [Canberra Industries, Meriden, CT (United States)

1998-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

Networks in Buildings: Which Path Forward?  

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

Networks in Buildings: Which Path Forward? Networks in Buildings: Which Path Forward? Title Networks in Buildings: Which Path Forward? Publication Type Conference Paper LBNL Report Number LBNL-2511E Year of Publication 2008 Authors Nordman, Bruce Conference Name 2008 ACEEE Summer Study on Energy Efficiency in Buildings Conference Location Pacific Grove, CA Keywords communication and standards, technologies Abstract To date, digital networks have principally been installed for connecting information technology devices, with more modest use in consumer electronics, security, and large building control systems. The next 20 years will see much greater deployment of networks in buildings of all types, and across all end uses. Most of these are likely to be introduced primarily for reasons other than energy efficiency, and add energy use for network interfaces and network products. Widespread networking could easily lead to increased energy use, and experience with IT and CE networks suggests this may be likely. Active engagement by energy efficiency professionals in the architecture and design of future networks could lead to their being a large and highly cost-effective tool for efficiency. However, network standards are complex and take many years to develop and negotiate so that lack of action on this in the near term may foreclose important opportunities for years or decades to come. Digital networks need to be common globally, providing another challenge to building systems and elements that are more commonly designed only for national or regional markets. Key future networks are lighting, climate control, and security/presence. This paper reviews some examples of past network designs and use and the lessons they hold for future building networks. It also highlights key needed areas for research, policy, and standards development.

342

A MIP-based local search method for the railway rescheduling problem  

Science Conference Proceedings (OSTI)

For operational and unpredictable reasons, many small incidents occur day after day in rail transportation systems. Most of them have a local impact, but, in some cases, mainly in dense networks, minimal disruptions can spread out through the whole network ... Keywords: disruption management, local branching, rescheduling, train timetabling

Rodrigo Acuna-Agost; Philippe Michelon; Dominique Feillet; Serigne Gueye

2011-01-01T23:59:59.000Z

343

Locality phase prediction  

Science Conference Proceedings (OSTI)

As computer memory hierarchy becomes adaptive, its performance increasingly depends on forecasting the dynamic program locality. This paper presents a method that predicts the locality phases of a program by a combination of locality profiling and run-time ... Keywords: dynamic optimization, locality analysis and optimization, phase hierarchy, program phase analysis and prediction, reconfigurable architecture

Xipeng Shen; Yutao Zhong; Chen Ding

2004-12-01T23:59:59.000Z

344

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

345

Aeromagnetic Survey At Dixie Valley Geothermal Field Area (Blackwell...  

Open Energy Info (EERE)

correlation will be investigated when the high resolution data are available. The magnetic results will also vary from area to area depending on the local rock types more than...

346

Teleseismic-Seismic Monitoring At Coso Geothermal Area (1996-2004) | Open  

Open Energy Info (EERE)

4) 4) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Coso Geothermal Area (1996-2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date 1996 - 2004 Usefulness useful DOE-funding Unknown Exploration Basis To look at time dependent seismic tomography Notes Local-earthquake tomographic images were calculated for each of the years 1996 - 2004 using arrival times from the U.S. Navy's permanent seismometer network. The results show irregular strengthening with time of the wave-speed ratio V p/V s at shallow depths. The period from 1996 through 2006 was studied, and the results to date using the traditional method show, for a 2-km horizontal grid spacing, an irregular strengthening

347

Solar-Aware clustering in wireless sensor networks  

E-Print Network (OSTI)

Energy conservation plays a crucial in wireless sensor networks since such networks are designed to be placed in hostile and non-accessible areas. While battery-driven sensors will run out of battery sooner or later, the use of renewable energy sources such as solar power or gravitation may extend the lifetime of a sensor network. We propose to utilize solar power in wireless sensor networks and extend LEACH a well-known cluster-based protocol for sensor networks to become solar-aware. The presented simulation results show that making LEACH solar-aware significantly extends the lifetime of sensor networks. 1

Thiemo Voigt; Hartmut Ritter

2004-01-01T23:59:59.000Z

348

Definition: Synchrophasor Communications Network | Open Energy Information  

Open Energy Info (EERE)

Synchrophasor Communications Network Synchrophasor Communications Network Jump to: navigation, search Dictionary.png Synchrophasor Communications Network A communications network to transport the digital information from phasor measurement units (PMUs) to where the data will be used. Typically implemented using a private wide-area network (WAN), this network can be any digital transport system that offers acceptable security and availability. Functional requirements have been developed as part of the North American SynchroPhasor Initiative (NASPI) to provide for flexible, fast, vendor-agnostic, and secure communication of phasor measurements from data collection points to various levels of phasor data concentrators (PDCs) and phasor application use points.[1] Related Terms sustainability, fuel cell, smart grid

349

Definition: Meter Communications Network | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Meter Communications Network Jump to: navigation, search Dictionary.png Meter Communications Network The communications infrastructure that supports two-way delivery of information between smart meters and data collectors or access points. This infrastructure can be wired or wireless, and can be owned by the utility or a third party service provider. This network is sometimes referred to as a "field area network".[1] Related Terms smart grid References ↑ https://www.smartgrid.gov/category/technology/meter_communications_network [[C Like Like 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:Meter_Communications_Network&oldid=493063"

350

Agent fitness functions for evolving coordinated sensor networks  

Science Conference Proceedings (OSTI)

Distributed sensor networks are an attractive area for research in agent systems. This is due primarily to the level of information available in applications where sensing technology has improved dramatically. These include energy systems and area coverage ... Keywords: agent fitness, distributed sensor network, neuro-evolution

Christian Roth; Matt Knudson; Kagan Tumer

2011-07-01T23:59:59.000Z

351

Ultra-wideband radar sensors and networks  

DOE Patents (OSTI)

Ultra wideband radar motion sensors strategically placed in an area of interest communicate with a wireless ad hoc network to provide remote area surveillance. Swept range impulse radar and a heart and respiration monitor combined with the motion sensor further improves discrimination.

Leach, Jr., Richard R; Nekoogar, Faranak; Haugen, Peter C

2013-08-06T23:59:59.000Z

352

The Graph Laplacian and the Dynamics of Complex Networks  

SciTech Connect

In this talk, we explore the structure of networks from a spectral graph-theoretic perspective by analyzing the properties of the Laplacian matrix associated with the graph induced by a network. We will see how the eigenvalues of the graph Laplacian relate to the underlying network structure and dynamics and provides insight into a phenomenon frequently observed in real world networks - the emergence of collective behavior from purely local interactions seen in the coordinated motion of animals and phase transitions in biological networks, to name a few.

Thulasidasan, Sunil [Los Alamos National Laboratory

2012-06-11T23:59:59.000Z

353

KALwEN: a new practical and interoperable key management scheme for body sensor networks  

Science Conference Proceedings (OSTI)

Key management is the pillar of a security architecture. Body sensor networks (BSNs) pose several challenges–some inherited from wireless sensor networks (WSNs), some unique to themselves–that require a new key management scheme to be tailor-made. ... Keywords: body area networks, body sensor networks, healthcare, key management, security

Yee Wei Law; Giorgi Moniava; Zheng Gong; Pieter Hartel; Marimuthu Palaniswami

2011-11-01T23:59:59.000Z

354

Mobility-assisted minimum connected cover in a wireless sensor network  

Science Conference Proceedings (OSTI)

All properties of mobile wireless sensor networks (MWSNs) are inherited from static wireless sensor networks (WSNs) and meanwhile have their own uniqueness and node mobility. Sensor nodes in these networks monitor different regions of an area of interest ... Keywords: Energy-aware selection method, Minimum connected sensor cover set, Mobile wireless sensor networks, Redundant node, Relocation

Ahmed M. Khedr; Walid Osamy

2012-07-01T23:59:59.000Z

355

Local Bézout Theorem  

Science Conference Proceedings (OSTI)

We give an elementary proof of what we call the Local Bezout Theorem. Given a system of n polynomials in n indeterminates with coefficients in a Henselian local domain, (V,m,k), which residually defines an isolated point in k^n of multiplicity r, we ... Keywords: Henselian rings, Local Bézout Theorem, Roots continuity, Stable computations

M. Emilia Alonso; Henri Lombardi

2010-10-01T23:59:59.000Z

356

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

357

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...

358

Distributed Newton-type algorithms for network resource allocation  

E-Print Network (OSTI)

Most of today's communication networks are large-scale and comprise of agents with local information and heterogeneous preferences, making centralized control and coordination impractical. This motivated much interest in ...

Wei, Ermin

2010-01-01T23:59:59.000Z

359

ROPE: robust position estimation in wireless sensor networks  

Science Conference Proceedings (OSTI)

We address the problem of secure location determination, known as Secure Localization, and the problem of verifying the location claim of a node, known as Location Verification, in Wireless Sensor Networks (WSN). We propose a robust positioning ...

Loukas Lazos; Radha Poovendran; Srdjan ?apkun

2005-04-01T23:59:59.000Z

360

Wide Area and Distributed Hydrogen Sensors  

DOE Green Energy (OSTI)

Recent advances in optical sensors show promise for the development of new wide area monitoring and distributed optical network hydrogen detection systems. Optical hydrogen sensing technologies reviewed here are: 1) open path Raman scattering systems, 2) back scattering from chemically treated solid polymer matrix optical fiber sensor cladding; and 3) shlieren and shearing interferometry imaging. Ultrasonic sensors for hydrogen release detection are also reviewed. The development status of these technologies and their demonstrated results in sensor path length, low hydrogen concentration detection ability, and response times are described and compared to the corresponding status of hydrogen spot sensor network technologies.

Zalosh, Robert G.; Barilo, Nick F.

2009-09-18T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

LINCS: Livermore's network architecture. [Octopus computing network  

SciTech Connect

Octopus, a local computing network that has been evolving at the Lawrence Livermore National Laboratory for over fifteen years, is currently undergoing a major revision. The primary purpose of the revision is to consolidate and redefine the variety of conventions and formats, which have grown up over the years, into a single standard family of protocols, the Livermore Interactive Network Communication Standard (LINCS). This standard treats the entire network as a single distributed operating system such that access to a computing resource is obtained in a single way, whether that resource is local (on the same computer as the accessing process) or remote (on another computer). LINCS encompasses not only communication but also such issues as the relationship of customer to server processes and the structure, naming, and protection of resources. The discussion includes: an overview of the Livermore user community and computing hardware, the functions and structure of each of the seven layers of LINCS protocol, the reasons why we have designed our own protocols and why we are dissatisfied by the directions that current protocol standards are taking.

Fletcher, J.G.

1982-01-01T23:59:59.000Z

362

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

363

Research Challenges and Applications for Underwater Sensor Networking  

E-Print Network (OSTI)

This paper explores applications and challenges for underwater sensor networks. We highlight potential applications to off-shore oilfields for seismic monitoring, equipment monitoring, and underwater robotics. We identify research directions in shortrange acoustic communications, MAC, time synchronization, and localization protocols for high-latency acoustic networks, longduration network sleeping, and application-level data scheduling. We describe our preliminary design on short-range acoustic communication hardware, and summarize results of high-latency time synchronization.

John Heidemann; Wei Ye; Jack Wills; Affan Syed; Yuan Li

2006-01-01T23:59:59.000Z

364

Strategic Focus Areas  

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

Focus Areas Lockheed Martin on behalf of Sandia National Laboratories will consider grant requests that best support the Corporation's strategic focus areas and reflect effective...

365

Wildlife Management Areas (Minnesota) | Department of Energy  

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

Minnesota) Minnesota) Wildlife Management Areas (Minnesota) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Residential Installer/Contractor Rural Electric Cooperative Tribal Government Low-Income Residential Schools Retail Supplier Institutional Multi-Family Residential Systems Integrator Fuel Distributor Nonprofit General Public/Consumer Transportation Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Minnesota Program Type Siting and Permitting Certain areas of the State are designated as wildlife protection areas and refuges; new construction and development is restricted in these areas

366

Wildlife Management Areas (Maryland) | Department of Energy  

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

Wildlife Management Areas (Maryland) Wildlife Management Areas (Maryland) Wildlife Management Areas (Maryland) < Back Eligibility Agricultural Commercial Construction Developer Fed. Government Fuel Distributor Industrial Installer/Contractor Investor-Owned Utility Local Government Municipal/Public Utility Nonprofit Retail Supplier Rural Electric Cooperative State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Maryland Program Type Environmental Regulations Siting and Permitting Provider Maryland Department of Natural Resources Wildlife Management Areas exist in the State of Maryland as wildlife sanctuaries, and vehicles, tree removal, and construction are severely

367

Groundwater Management Areas (Texas) | Department of Energy  

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

Management Areas (Texas) Management Areas (Texas) Groundwater Management Areas (Texas) < Back Eligibility Utility Fed. Government Commercial Investor-Owned Utility Industrial Construction Municipal/Public Utility Local Government Rural Electric Cooperative Tribal Government Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Texas Program Type Environmental Regulations Provider Texas Commission on Environmental Quality This legislation authorizes the Texas Commission on Environmental Quality and the Texas Water Development Board to establish Groundwater Management Areas to provide for the conservation, preservation, protection, recharging, and prevention of waste of groundwater and groundwater

368

Divide-and-conquer learning and modular perceptron networks  

Science Conference Proceedings (OSTI)

A novel modular perceptron network (MPN) and divide-and-conquer learning (DCL) schemes for the design of modular neural networks are proposed. When a training process in a multilayer perceptron falls into a local minimum or stalls in a flat region, the ...

Hsin-Chia Fu; Yen-Po Lee; Cheng-Chin Chiang; Hsiao-Tien Pao

2001-03-01T23:59:59.000Z

369

Neural network learning of optimal Kalman prediction and control  

Science Conference Proceedings (OSTI)

Although there are many neural network (NN) algorithms for prediction and for control, and although methods for optimal estimation (including filtering and prediction) and for optimal control in linear systems were provided by Kalman in 1960 (with nonlinear ... Keywords: Kalman control, Kalman filter, Local cortical circuit, Recurrent neural network

Ralph Linsker

2008-11-01T23:59:59.000Z

370

Nonparametric belief propagation for self-calibration in sensor networks  

Science Conference Proceedings (OSTI)

Automatic self-calibration of ad-hoc sensor networks is a critical need for their use in military or civilian applications. In general, self-calibration involves the combination of absolute location information (e.g. GPS) with relative calibration information ... Keywords: NBP, belief propagation, calibration, localization, nonparametric, sensor network

Alexander T. Ihler; John W. Fisher, III; Randolph L. Moses; Alan S. Willsky

2004-04-01T23:59:59.000Z

371

Local energy conservation programs: past and future  

SciTech Connect

A review of local government energy programs examines specific programs adopted since 1975 which have been successful and identifies lessons from these experiences that will be helpful in the future. Successful programs have a positive effect on economic development and job creation, income equity, environmental and consumer goals, and political goals. The report focuses on three major areas of local programs: building codes, joint programs, and energy management. Other programs in the review are financing arrangements, retrofitting, transportation, etc. While direct benefits lack data for verification, the indirect benefits of aggressive local government programs have had significant value in establishing local programs at the laboratories for trying new ideas. Future local efforts need cooperation and support from the federal government. 56 references, 1 figure.

Lee, H.

1984-01-01T23:59:59.000Z

372

One dimensional P wave velocity structure of the crust beneath west Java and accurate hypocentre locations from local earthquake inversion  

SciTech Connect

A one-dimensional (1-D) velocity model and station corrections for the West Java zone were computed by inverting P-wave arrival times recorded on a local seismic network of 14 stations. A total of 61 local events with a minimum of 6 P-phases, rms 0.56 s and a maximum gap of 299 Degree-Sign were selected. Comparison with previous earthquake locations shows an improvement for the relocated earthquakes. Tests were carried out to verify the robustness of inversion results in order to corroborate the conclusions drawn out from our reasearch. The obtained minimum 1-D velocity model can be used to improve routine earthquake locations and represents a further step toward more detailed seismotectonic studies in this area of West Java.

Supardiyono; Santosa, Bagus Jaya [Physics Department, Faculty of Mathematics and Natural Sciences, State University of Surabaya, Surabaya (Indonesia) and Physics Department, Faculty of Mathematics and Natural Sciences, Sepuluh Nopember Institute of Technology, Surabaya (Indonesia); Physics Department, Faculty of Mathematics and Natural Sciences, Sepuluh Nopember Institute of Technology, Surabaya (Indonesia)

2012-06-20T23:59:59.000Z

373

Joint Routing and Scheduling in Multi-hop Wireless Networks with Directional Antennas  

E-Print Network (OSTI)

Long-distance multi-hop wireless networks have been used in recent years to provide connectivity to rural areas. The salient features of such networks include TDMA channel access, nodes with multiple radios, and point-to-point ...

Dutta, Partha

374

The MicroGrid: Using Online Simulation to Predict Application Performance in Diverse Grid Network Environments  

Science Conference Proceedings (OSTI)

Improvements in networking and middleware technologyare enabling large-scale grids that aggregateresources over wide-area networks to support applicationsat unprecedented levels of scale and performance.Unfortunately, existing middleware and tools provide ...

2004-06-01T23:59:59.000Z

375

Snowmass 2013 Computing Frontier: Networking  

E-Print Network (OSTI)

Computing has become a major component of all particle physics experiments and in many areas of theoretical particle physics. Progress in HEP experiment and theory will require significantly more computing, software development, storage, and networking, with different projects stretching future capabilities in different ways. However, there are many common needs among different areas in HEP, so more community planning is advised to increase efficiency. Careful and continuing review of the topics we studied, i.e., user needs and capabilities of current and future technology, is needed.

Gregory Bell; Michael Ernst

2013-11-11T23:59:59.000Z

376

Northeast - NY NJ CT PA Area | Open Energy Information  

Open Energy Info (EERE)

Northeast - NY NJ CT PA Area Northeast - NY NJ CT PA Area (Redirected from New York Area - NY NJ CT PA) Jump to: navigation, search Contents 1 Clean Energy Clusters in the Northeast - NY NJ CT PA Area 1.1 Products and Services in the Northeast - NY NJ CT PA Area 1.2 Research and Development Institutions in the Northeast - NY NJ CT PA Area 1.3 Networking Organizations in the Northeast - NY NJ CT PA Area 1.4 Investors and Financial Organizations in the Northeast - NY NJ CT PA Area 1.5 Policy Organizations in the Northeast - NY NJ CT PA Area Clean Energy Clusters in the Northeast - NY NJ CT PA Area Products and Services in the Northeast - NY NJ CT PA Area Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":500,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

377

Comparing SOS and SDP relaxations of sensor network localization  

E-Print Network (OSTI)

Jan 18, 2010 ... where U = ( uij. ) 1?i,j?m and ... they give the same set of Z. However, this latter approach may recover sen- .... Since there are only two sen-.

378

Local Algorithms for Finding Interesting Individuals in Large Networks  

E-Print Network (OSTI)

that are distant from all those currently known. The Crawl operation permits an algorithm to explore the neighbors

Plotkin, Joshua B.

379

DALLAS, TEXAS Localized Patterns in Homogeneous Networks of  

E-Print Network (OSTI)

); P. Ka� stanek, J. Kosek, D. � Snita, I. Schreiber, and M. Marek, Physica (Amsterdam) 84D, 79 (1995); H. � Sev� ciková, J. Kosek, and M. Marek, J. Phys. Chem. 100, 1666 (1996); M. Gómez­Gesteira et al

Moore, Peter K.

380

Solving the Sensor Network Localization Problem using an Heuristic ...  

E-Print Network (OSTI)

with a great savings in time. After the whole ... curacy is fulfilled, leading to considerable saving in time. 5 A Sequential .... project si onto the feasible set;. 7. Algorithm ..... Tech. rep., Northwestern University, Department of Electrical Engineering.

Note: This page contains sample records for the topic "local area 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

Underground Distribution: Urban Network Practices Survey - 2012  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) has undertaken a multiyear research effort to identify and describe leading industry practices for managing urban network systems in the key functional areas of planning, design, construction, maintenance, operations, and safety. This report summarizes the results of the 2012 survey of urban network practices issued by EPRI and provides comparisons to a similar survey issued by EPRI in 2009.

2012-07-11T23:59:59.000Z

382

Local Incentives (Massachusetts)  

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

The Massachusetts Office of Business Development helps companies to identify communities interested in offering locally-negotiated incentives, such as Tax Increment Financing (TIF), Special Tax...

383

Local Structure from Diffraction  

Science Conference Proceedings (OSTI)

Mar 14, 2012 ... Neutron and X-Ray Studies of Advanced Materials V: Centennial: Local .... we use both the high-flux neutrons at the Spallation Neutron Source ...

384

Organizations and Networks | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Jump to: navigation, search Registered Technical and Research Organizations Networks Climate Eval "The website promotes active debate on areas relevant to evaluation of climate change and development evaluation by bringing relevant topics to a peer to peer discussion forum." Coordinated Low Emissions Assistance Network (CLEAN) CLEAN aims to improve communication and coordination by bringing together national and international organizations that are assisting developing countries with preparation and implementation of low greenhouse gas emission plans and strategies. This includes support for technology needs assessments, for low carbon and clean energy development plans, and for technology roadmaps and deployment programs. Renewable Energy Policy Network for the 21st Century (REN21)

385

Utilizing Renewable Energy in Cluster-based Sensor Networks  

E-Print Network (OSTI)

Energy conservation plays a crucial in wireless sensor networks since such networks are designed to be placed in hostile and non-accessible areas. While battery-driven sensors will run out of battery sooner or later, the use of renewable energy sources such as solar power or gravitation may extend the lifetime of a sensor. We propose to utilize solar power in wireless sensor networks and extend LEACH a well-known cluster-based protocol for sensor networks to become solar-aware. The presented simulation results show that making LEACH solar-aware significantly extends the lifetime of sensor networks.

Thiemo Voigt; Hartmut Ritter; Jochen Schiller

2003-01-01T23:59:59.000Z

386

IEEE P802.15 Wireless Personal Area Networks  

Science Conference Proceedings (OSTI)

... is typically associated with the RF channel modeling ... 625 s. A master device starts its transmission ... be noted that depending on the topology and the ...

2003-12-11T23:59:59.000Z

387

Draft of Channel Model for Body Area Network  

Science Conference Proceedings (OSTI)

... 2x2 Load impedance of receiver ... h(t) : Complex impulse response • L : Number of arrival paths, modelled as Poisson random variable with mean ...

2010-11-16T23:59:59.000Z

388

Home Area Network Performance Metrics and Monitoring - Phase 2  

Science Conference Proceedings (OSTI)

In considering a particular communication technology and protocol, one of the earliest steps that must be taken is to review features and performance claims by its publishing agency (manufacturer or supporting alliance). These claims are based on specific conditions, generally ideal ones. This is mainly because of practicality issues since it is difficult if not impossible to cover a technologys performance in every possible condition where it may be used. This approach also tends to put that technology ...

2010-12-31T23:59:59.000Z

389

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

390

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

391

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

392

An Experimental Study of RSS-Based Indoor Localization Using Nonparametric Belief Propagation Based on Spanning Trees  

Science Conference Proceedings (OSTI)

Nonparametric belief propagation (NBP) is the well-known method for cooperative localization in wireless sensor networks. It is capable to provide information about location estimation with appropriate uncertainty and to accommodate non-Gaussian distance ... Keywords: Indoor localization, nonparametric belief propagation, spanning tree, breadth first search, sensor networks

Vladimir Savic; Adrián Población; Santiago Zazo; Mariano García

2010-07-01T23:59:59.000Z

393

Survey Focal design issues affecting the deployment of wireless sensor networks for pipeline monitoring  

Science Conference Proceedings (OSTI)

Wireless sensor networks (WSNs) are a target technology for oil and gas pipeline monitoring because they offer benefits of low cost, ease of deployment and ability to cater for data acquisition at great spatial and temporal scales. In order for WSN to ... Keywords: Energy harvesting, Localization, Network reliability, Oil and gas pipeline monitoring, Power efficiency, Sensing modality, Wireless sensor networks

Gbenga Owojaiye; Yichuang Sun

2013-05-01T23:59:59.000Z

394

Automated Recurrent Neural Network Design of a Neural Controller in a Custom Power Device  

Science Conference Proceedings (OSTI)

A general purpose implementation of the Tabu Search metaheuristic, called Universal Tabu Search, is used to optimally design a Locally Recurrent Neural Network architecture. Indeed, the design of a neural network is a tedious and time consuming trial ... Keywords: custom power protection device, neural controller, recurrent neural networks, universal Tabu Search

B. Cannas; G. Celli; A. Fanni; F. Pilo

2001-05-01T23:59:59.000Z

395

In-network data estimation for sensor-driven scientific applications  

Science Conference Proceedings (OSTI)

Sensor networks employed by scientific applications oftenneed to support localized collaboration of sensor nodes to perform in-network data processing. This includes new quantitative synthesis andhypothesis testing in near real time, as data streaming ... Keywords: in-network data estimation, sensor system programming, sensor-driven scientific applications

Nanyan Jiang; Manish Parashar

2008-12-01T23:59:59.000Z

396

Characterization of the Weatherization Assistance Program network. Weatherization Assistance Program  

Science Conference Proceedings (OSTI)

The Characterization of the Weatherization Assistance Program (WAP) Network was designed to describe the national network of State and local agencies that provide WAP services to qualifying low-income households. The objective of this study was to profile the current WAP network. To achieve the objective, two national surveys were conducted: one survey collected data from 49 State WAP agencies (including the coterminous 48 States and the District of Columbia), and the second survey collected data from 920 (or 81 percent) of the local WAP agencies.

Mihlmester, P.E.; Koehler, W.C. Jr.; Beyer, M.A. [Aspen Systems Corp., Oak Ridge, TN (United States). Applied Management Sciences Div.; Brown, M.A. [Oak Ridge National Lab., TN (United States); Beschen, D.A. Jr. [Department of Energy, Washington, DC (United States). Office of Weatherization Assistance Programs

1992-02-01T23:59:59.000Z

397

Policy Network Approach to Coordinated Disaster Response  

E-Print Network (OSTI)

In this paper, we explore the formation of network relationships among disaster relief agencies during the process of responding to an unexpected event. The relationship is investigated through variables derived from the policy network theory, and four cases from three developed countries such as (i) Hurricane Katrina in the US; (ii) Typhoon Maemi in South Korea; (iii) Kobe; and, (iv) Tohoku Earthquake in Japan that failed to cope with extreme events forms the basis for case study presented here. We argue that structural characteristics of multi-jurisdictional coordination may facilitate or impede in responding to a complex nature of recent disaster. We further highlight the promise of policy network approach in facilitating the development of multi-jurisdictional coordination process which may provide new avenue to improve the communication and coordination of hierarchical command control driven organizations with the local community. Our proposed novel approach in investigating the usefulness of network app...

Kim, Kwang Deok

2013-01-01T23:59:59.000Z

398

Distributed sensor networks with collective computation  

Science Conference Proceedings (OSTI)

Simulations of a network of N sensors have been performed. The simulation space contains a number of sound sources and a large number of sensors. Each sensor is equipped with an omni-directional microphone and is capable of measuring only the time of arrival of a signal. Sensors are able to wirelessly transmit and receive packets of information, and have some computing power. The sensors were programmed to merge all information (received packets as well as local measurements) into a 'world view' for that node. This world view is then transmitted. In this way, information can slowly diffuse across the network. One node was monitored in the network as a proxy for when information had diffused across the network. Simulations demonstrated that the energy expended per sensor per time step was approximately independent of N.

Lanman, D. R. (Douglas R.)

2001-01-01T23:59:59.000Z

399

Transportation energy contingency plans for rural areas and small communities. Final report Oct 80-Dec 81. [Missouri  

Science Conference Proceedings (OSTI)

Following the petroleum supply disruptions of the 1970's the Federal Government took actions to ensure continuation of transportation services during a critical situation. This led to development of state transportation energy contingency plans; however the Missouri Transportation Fuels Emergency Plan, like those of many states, does not contain specific recommendations for small communities and rural areas. This investigation was undertaken to determine the most effective transportation fuel conservation measures which could be implemented by such areas during energy emergencies. Recommendations are presented concerning strategies to reduce gasoline use in rural areas and the institutional arrangements required for coping with a fuel shortage. It is suggested that the multi-county regional planning commission should become the lead agency in implementing and coordinating fuel conservation measures in rural areas. The existing network of emergency preparedness officers should be utilized to inventory local fuel distribution services, monitor local service station operating practices and to serve motorists who might be stranded. The University of Missouri Cooperative Extension Service should offer educational programs covering fuel conserving driving techniques, vehicle maintenance, trip planning, and ridesharing.

Dare, C.E.

1981-12-01T23:59:59.000Z

400

Commercial % Sold by Local Distribution Companies  

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

Residential Price - Local Distribution Companies Residential Price - Marketers Residential % Sold by Local Distribution Companies Average Commercial Price Commercial Price - Local Distribution Companies Commerical Price - Marketers Commercial % Sold by Local Distribution Companies Period: Residential Price - Local Distribution Companies Residential Price - Marketers Residential % Sold by Local Distribution Companies Average Commercial Price Commercial Price - Local Distribution Companies Commerical Price - Marketers Commercial % Sold by Local Distribution Companies Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 2006 2010 2011 2012 View History District of Columbia 19.95 16.4 2006-2010 Florida 43.91 40.2 2006-2010 Georgia 20.63 18.3 17.8 17.4 2006-2012 Maryland 30.42 28.9 2006-2010 Michigan 63.99 55.8 2006-2010 New York 49.39 37.2 36.7 33.6 2006-2012 Ohio 35.13 20.6 17.9 13.2 2006-2012

Note: This page contains sample records for the topic "local area 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

Commercial % Sold by Local Distribution Companies  

Gasoline and Diesel Fuel Update (EIA)

Residential Price - Local Distribution Companies Residential Price - Marketers Residential % Sold by Local Distribution Companies Average Commercial Price Commercial Price - Local Distribution Companies Commerical Price - Marketers Commercial % Sold by Local Distribution Companies Period: Residential Price - Local Distribution Companies Residential Price - Marketers Residential % Sold by Local Distribution Companies Average Commercial Price Commercial Price - Local Distribution Companies Commerical Price - Marketers Commercial % Sold by Local Distribution Companies Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 2006 2010 2011 2012 View History District of Columbia 19.95 16.4 2006-2010 Florida 43.91 40.2 2006-2010 Georgia 20.63 18.3 17.8 17.4 2006-2012 Maryland 30.42 28.9 2006-2010 Michigan 63.99 55.8 2006-2010 New York 49.39 37.2 36.7 33.6 2006-2012 Ohio 35.13 20.6 17.9 13.2 2006-2012

402

Northeast - NY NJ CT PA Area | Open Energy Information  

Open Energy Info (EERE)

Northeast - NY NJ CT PA Area Northeast - NY NJ CT PA Area Jump to: navigation, search Contents 1 Clean Energy Clusters in the Northeast - NY NJ CT PA Area 1.1 Products and Services in the Northeast - NY NJ CT PA Area 1.2 Research and Development Institutions in the Northeast - NY NJ CT PA Area 1.3 Networking Organizations in the Northeast - NY NJ CT PA Area 1.4 Investors and Financial Organizations in the Northeast - NY NJ CT PA Area 1.5 Policy Organizations in the Northeast - NY NJ CT PA Area Clean Energy Clusters in the Northeast - NY NJ CT PA Area Products and Services in the Northeast - NY NJ CT PA Area Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":500,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

403

Topological Complexity of Frictional Interfaces: Friction Networks  

E-Print Network (OSTI)

Through research conducted in this study, a network approach to the correlation patterns of void spaces in rough fractures (crack type II) was developed. We characterized friction networks with several networks characteristics. The correlation among network properties with the fracture permeability is the result of friction networks. The revealed hubs in the complex aperture networks confirmed the importance of highly correlated groups to conduct the highlighted features of the dynamical aperture field. We found that there is a universal power law between the nodes' degree and motifs frequency (for triangles it reads T(k)\\proptok{\\beta} ({\\beta} \\approx2\\pm0.3)). The investigation of localization effects on eigenvectors shows a remarkable difference in parallel and perpendicular aperture patches. Furthermore, we estimate the rate of stored energy in asperities so that we found that the rate of radiated energy is higher in parallel friction networks than it is in transverse directions. The final part of our research highlights 4 point sub-graph distribution and its correlation with fluid flow. For shear rupture, we observed a similar trend in sub-graph distribution, resulting from parallel and transversal aperture profiles (a superfamily phenomenon).

H. O. Ghaffari; R. P. Young

2011-05-21T23:59:59.000Z

404

Division/ Interest Area Information  

Science Conference Proceedings (OSTI)

Learn more about Divisions and Interest areas. Division/ Interest Area Information Membership Information achievement application award Awards distinguished division Divisions fats job Join lipid lipids Member member get a member Membership memori

405

DOE Designates Southwest Area and Mid-Atlantic Area National...  

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

Designates Southwest Area and Mid-Atlantic Area National Interest Electric Transmission Corridors October 2, 2007 DOE Designates Southwest Area and Mid-Atlantic Area National...

406

DOE Designates Southwest Area and Mid-Atlantic Area National...  

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

Designates Southwest Area and Mid-Atlantic Area National Interest Electric Transmission Corridors DOE Designates Southwest Area and Mid-Atlantic Area National Interest Electric...

407

Geothermal br Resource br Area Geothermal br Resource br Area...  

Open Energy Info (EERE)

Brady Hot Springs Geothermal Area Brady Hot Springs Geothermal Area Northwest Basin and Range Geothermal Region MW K Coso Geothermal Area Coso Geothermal Area Walker Lane...

408

Flexible Universal Networks—A New Approach to Telecommunication Services?  

Science Conference Proceedings (OSTI)

GPRS, WLAN integration, Mobile Number Portability and UMTS are some of the new technologies which are foreseen to carry many new service applications. In the near future, it is expected that mobile networks will go beyond connecting people and will connect ... Keywords: 3G and 4G Internet protocols over heterogeneous networks, AAA, RADIUS, SIM access gateway, UMTS, WLAN, Web services, data model, home location register (HLR), mobility management, service control point (SCP), storage area networks (SAN), subscriber profile

Stephan Rupp; Franz-Josef Banet; Rodolfo-Lopez Aladros; Gerd Siegmund

2004-04-01T23:59:59.000Z

409

Help local children get new shoes  

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

Help Local Children Get New Shoes Help Local Children Get New Shoes Community Connections: Our link to Northern New Mexico Communities Latest Issue:Dec. 2013 - Jan. 2014 All Issues » submit Help local children get new shoes To help the program assist more children, consider a donation to the LANL Laces program. February 1, 2013 dummy image Read our archives. Contacts Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email Support for this program comes from contributions by Lab employees, Cray, Inc. and others. Local children in need of new shoes are getting help this winter from the LANL Laces program, currently working with school districts in Rio Arriba, Santa Fe, Las Vegas, Los Alamos and Taos counties, as well as some area tribal schools, to provide more than 330 elementary children with new

410

CEMA: Comfort Control and Energy Management Algorithms for Use in Residential Spaces Through Wireless Sensor Networks .  

E-Print Network (OSTI)

??In recent years, many strides have been achieved in the area of Wireless Sensor Networks (WSNs), which is leading to constant innovations in the types… (more)

Henry, Rami F.Z.

2010-01-01T23:59:59.000Z

411

An energy harvesting aware data dissemination strategy for energy rechargeable wireless sensor networks.  

E-Print Network (OSTI)

??A wireless sensor network (WSN) is often deployed in a harsh or hard-reach area and is required to operate for a long period time to… (more)

Gosavi, Amit

2012-01-01T23:59:59.000Z

412

Validation of a Composite Convective Index as Defined by a Real-Time Local Analysis System  

Science Conference Proceedings (OSTI)

Advances in remote sensing from earth- and spaceborne systems, expanded in situ observation networks, and increased low-cost computer capability will allow an unprecedented view of mesoscale weather systems from the local weather office. However, ...

John A. McGinley; Steven C. Albers; Peter A. Stamus

1991-09-01T23:59:59.000Z

413

Sensitivity of Local Daily Temperature Change Estimates to the Selection of Downscaling Models and Predictors  

Science Conference Proceedings (OSTI)

A number of statistical downscaling models are applied to the Canadian Climate Centre general circulation model (CCCM) outputs to provide climate change estimates for local daily surface temperature at a network of 39 stations in central and ...

Radan Huth

2004-02-01T23:59:59.000Z

414

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

415

State and Local Incentives  

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

To help you make energy efficiency improvements in your commercial building, your state and/or local community might offer incentives or have special programs. See the following resources for more...

416

Severe Local Storms Forecasting  

Science Conference Proceedings (OSTI)

Knowledge of severe local storms has been increasing rapidly in recent years as a result of both observational studies and numerical modeling experiments. This paper reviews that knowledge as it relates to development of new applications for ...

Robert H. Johns; Charles A. Doswell III

1992-12-01T23:59:59.000Z

417

Local entropy generation analysis  

SciTech Connect

Second law analysis techniques have been widely used to evaluate the sources of irreversibility in components and systems of components but the evaluation of local sources of irreversibility in thermal processes has received little attention. While analytical procedures for evaluating local entropy generation have been developed, applications have been limited to fluid flows with analytical solutions for the velocity and temperature fields. The analysis of local entropy generation can be used to evaluate more complicated flows by including entropy generation calculations in a computational fluid dynamics (CFD) code. The research documented in this report consists of incorporating local entropy generation calculations in an existing CFD code and then using the code to evaluate the distribution of thermodynamic losses in two applications: an impinging jet and a magnetic heat pump. 22 refs., 13 figs., 9 tabs.

Drost, M.K.; White, M.D.

1991-02-01T23:59:59.000Z

418

Wireless Local Loop  

Science Conference Proceedings (OSTI)

Wireless local loop systems are available to provide both broadband and narrowband services to customers. Narrowband systems are generally either based on cordless or mobile standards, or a manufacturer‘s proprietary technology. They are generally ...

R. P. Merrett; P. V. E. Beastall; S. J. Buttery

1998-10-01T23:59:59.000Z

419

Localization and Tracking  

E-Print Network (OSTI)

Abstract—Reliable obstacle detection and localization is a key issue for driver assistance systems, particularly in urban environments. In this study a multi-modal perception approach is investigated, the objective being to enhance vehicle localization and dynamic object tracking in a world-centric map. A 3D ego-localization is achieved by merging information from a stereo vision system and data obtained from vehicle sensors. Mobile objects are detected using a multi-layer lidar that is also used to identify a constrained search space within the multiple target tracking process. Object localization and tracking is then performed in the fixed frame, which facilitates analysis and understanding of the scene. Experimental results using real world data are performed to evaluate the performance of the multi-modal system, and these are presented to show the effectiveness of the approach. Index Terms—Multi-modal perception, visual odometry, object tracking, dynamic map, intelligent vehicles. I.

Sergio A. Rodríguez F; Vincent Frémont; Véronique Cherfaoui

2013-01-01T23:59:59.000Z

420

Fundamental limits of wideband localization: part I: a general framework  

Science Conference Proceedings (OSTI)

The availability of position information is of great importance in many commercial, public safety, and military applications. The coming years will see the emergence of location-aware networks with submeter accuracy, relying on accurate range measurements ... Keywords: Cramér-Rao bound (CRB), equivalent Fisher information (EFI), information inequality, localization, ranging information (RI), squared position error bound (SPEB)

Yuan Shen; Moe Z. Win

2010-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

Design of a backup network for catastrophe scenarios  

Science Conference Proceedings (OSTI)

Communication networks play a fundamental role in the response to a massive catastrophe, like an earthquake or a large-scale terrorist attack to a major urban area. In such situations, command centres must be able to rely on a fully operational communication ... Keywords: backup networks, emergency communications, resilience

S. Alves; B. Koldehofe; H. Miranda; F. Taiani

2009-06-01T23:59:59.000Z

422

Trio: enabling sustainable and scalable outdoor wireless sensor network deployments  

Science Conference Proceedings (OSTI)

We present the philosophy, design, and initial evaluation of the Trio Testbed, a new outdoor sensor network deployment that consists of 557 solar-powered motes, seven gateway nodes, and a root server. The testbed covers an area of approximately 50,000 ... Keywords: detection, large-scale, long-life, sensor networks, surveillance, target tracking, testbed

Prabal Dutta; Jonathan Hui; Jaein Jeong; Sukun Kim; Cory Sharp; Jay Taneja; Gilman Tolle; Kamin Whitehouse; David Culler

2006-04-01T23:59:59.000Z

423

WARPnet: clean slate research on deployed wireless networks  

Science Conference Proceedings (OSTI)

In this demo we present the Wireless Open-Access Research Platform for Networks (WARPnet), a research testbed aimed at performing experiments at the network level. The platform is designed to support not only conventional research areas but also new ... Keywords: control, measurement, warp, warpnet, wireless

Siddharth Gupta; Chris Hunter; Patrick Murphy; Ashutosh Sabharwal

2009-05-01T23:59:59.000Z

424

Resource Allocation in Sensor Networks with Renewable Energy  

E-Print Network (OSTI)

Resource Allocation in Sensor Networks with Renewable Energy (Invited Paper) Zhoujia Mao Department@ece.osu.edu Abstract--Renewable energy sources can be attached to sensor nodes to provide energy replenishment the wide-scale deployment of such networks. However, new and exciting developments in the area of renewable

Koksal, Can Emre

425

Energy packet networks: adaptive energy management for the cloud  

Science Conference Proceedings (OSTI)

In the presence of limitations in the availability of energy for data centres, especially in dense urban areas, a novel system that we call an Energy Packet Network is discussed as a means to provide energy on demand to Cloud Computing servers. ... Keywords: cloud computing, energy packet networks, energy provisioning on demand, smart grid

Erol Gelenbe

2012-04-01T23:59:59.000Z

426

A secure monitoring and control system for Wireless Sensor Networks  

Science Conference Proceedings (OSTI)

The maintenance of Wireless Sensor Networks (WSNs) can carry high or prohibitive costs, particularly, if the WSN is deployed in unattended areas. Secure monitoring and control of the WSN is vital, however, practical systems are rare and limited with ... Keywords: Monitoring,Wireless sensor networks,Control systems,Intrusion detection,Elliptic curve cryptography

Michael Riecker, Rainer Thome, Dingwen Yuan, Matthias Hollick

2012-10-01T23:59:59.000Z

427

Wireless sensor networks based on publish/subscribe messaging paradigms  

Science Conference Proceedings (OSTI)

Rapidly increasing development and application areas of wireless sensor networks requires the deployment of highly scalable and dynamic communications paradigms for coping with the complex data management tasks encountered in distributed environments. ... Keywords: publish/subscribe messaging systems, wireless sensor networks

Hakan Cam; Ozgur Koray Sahingoz; Ahmet Coskun Sonmez

2011-05-01T23:59:59.000Z

428

NetCOPE: Platform for Rapid Development of Network Applications  

Science Conference Proceedings (OSTI)

Rapid development in area of network technologies and the bandwidth increase to 1Gbps or 10Gbps puts more and more requirements to devices, that have to process or analyze a network traffic. The results from numerous research works show that the performance ...

Tomas Martinek; Martin Kosek

2008-04-01T23:59:59.000Z

429

Focused beam routing protocol for underwater acoustic networks  

Science Conference Proceedings (OSTI)

Multi-hop transmission is considered for large coverage areas in bandwidth-limited underwater acoustic networks. In this paper, we present a scalable routing technique based on location information, and optimized for minimum energy per bit consumption. ... Keywords: power control, routing, underwater acoustic networks

Josep Miquel Jornet; Milica Stojanovic; Michele Zorzi

2008-09-01T23:59:59.000Z

430

International Council for Local Environmental Initiatives (ICLEI) Clean Air  

Open Energy Info (EERE)

International Council for Local Environmental Initiatives (ICLEI) Clean Air International Council for Local Environmental Initiatives (ICLEI) Clean Air and Climate Protection Software Tools Jump to: navigation, search Tool Summary Name: International Council for Local Environmental Initiatives (ICLEI) Clean Air and Climate Protection Software Tools Agency/Company /Organization: International Council for Local Environmental Initiatives Sector: Climate Focus Area: - Waste to Energy, Buildings, Greenhouse Gas, Offsets and Certificates, Transportation Phase: Determine Baseline, Evaluate Options, Develop Goals, Prepare a Plan Resource Type: Software/modeling tools User Interface: Desktop Application Website: www.icleiusa.org/action-center/tools/cacp-software Cost: Paid References: CACP Software 2009[1] Local Government Operations Protocol[2]

431

Technical benefits and cultural barriers of networked Autonomous Undersea Vehicles  

E-Print Network (OSTI)

The research presented in this thesis examines the technical benefits to using a collaborative network of Autonomous Undersea Vehicles (AUVs) in place of individual vehicles. Benefits could be achieved in the areas of ...

Wineman, Patrick L

2013-01-01T23:59:59.000Z

432

Behavioural reconfigurable and adaptive data reduction in body sensor networks  

Science Conference Proceedings (OSTI)

Body area sensor networks have been attracting more and more applications which focus on human behaviour and monitoring, ranging from simple positioning to medical applications. These BSNs inherit unique specifications since are composed of light-weight ...

Foad Dabiri; Hyduke Noshadi; Majid Sarrafzadeh

2013-06-01T23:59:59.000Z

433

The Use of Limited Surface Networks to Measure Mesoscale Phenomena  

Science Conference Proceedings (OSTI)

Large mesonetworks have successfully demonstrated coupling of surface meteorological phenomena to convective activity. It is unrealistic however, to assume that such networks will be available for wide-area operational applications. This paper ...

James A. Heimbach Jr.; Thomas M. Engel

1987-01-01T23:59:59.000Z

434

Wetland Preservation Areas (Minnesota) | Department of Energy  

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

Wetland Preservation Areas (Minnesota) Wetland Preservation Areas (Minnesota) Wetland Preservation Areas (Minnesota) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Residential Installer/Contractor Rural Electric Cooperative Tribal Government Low-Income Residential Schools Retail Supplier Institutional Multi-Family Residential Systems Integrator Fuel Distributor Nonprofit General Public/Consumer Transportation Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Minnesota Program Type Siting and Permitting A wetland owner can apply to the host county for designation of a wetland preservation area. Once designated, the area remains designated until the

435

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

436

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

437

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

438

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

439

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

440

Multifunctional Mesoscale Observing Networks  

Science Conference Proceedings (OSTI)

More than 120 scientists, engineers, administrators, and users met on 8–10 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

Note: This page contains sample records for the topic "local area 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

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

442

Effective Protocols for Mobile Communications and Networking  

SciTech Connect

This report examines methods of mobile communications with an emphasis on mobile computing and wireless communications. Many of the advances in communications involve the use of Internet Protocol (IP), Asynchronous Transfer Mode (ATM), and ad hoc network protocols. However, many of the advances in these protocols have been focused on wired communications. Recently much focus has been directed at advancing communication technology in the area of mobile wireless networks. This report discusses various protocols used in mobile communications and proposes a number of extensions to existing protocols. A detailed discussion is also included on desirable protocol characteristics and evaluation criteria. In addition, the report includes a discussion on several network simulation tools that maybe used to evaluate network protocols.

Espinoza, J.; Sholander, P.; Van Leeuwen, B,

1998-12-01T23:59:59.000Z

443

Multiple-Scale Terrain Forcing of Local Wind Fields  

Science Conference Proceedings (OSTI)

Observations and numerical simulations with a hydrostatic model are used to examine effects of regional and local terrain, synoptic forcing, and stability on the wind fields of an intermountain basin. The study area is centered on the Hanford ...

J. C. Doran; E. D. Skyllingstad

1992-05-01T23:59:59.000Z

444

V-036: EMC Smarts Network Configuration Manager Database Authentication  

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

6: EMC Smarts Network Configuration Manager Database 6: EMC Smarts Network Configuration Manager Database Authentication Bypass Vulnerability V-036: EMC Smarts Network Configuration Manager Database Authentication Bypass Vulnerability November 29, 2012 - 3:30am Addthis PROBLEM: EMC Smarts Network Configuration Manager Database Authentication Bypass Vulnerability PLATFORM: EMC Smarts Network Configuration Manager (NCM) all versions prior 9.1 ABSTRACT: Two vulnerabilities were reported in EMC Smarts Network Configuration Manager. REFERENCE LINKS: EMC Identifier: ESA-2012-057 Secunia Advisory SA51408 SecurityTracker Alert ID: 1027812 CVE-2012-4614 CVE-2012-4615 IMPACT ASSESSMENT: Medium DISCUSSION: The systems uses a hard-coded key to encrypt authentication credentials on the target system [CVE-2012-4615]. A local user with knowledge of the key

445

QKD in Standard Optical Telecommunications Networks  

E-Print Network (OSTI)

To perform Quantum Key Distribution, the mastering of the extremely weak signals carried by the quantum channel is required. Transporting these signals without disturbance is customarily done by isolating the quantum channel from any noise sources using a dedicated physical channel. However, to really profit from this technology, a full integration with conventional network technologies would be highly desirable. Trying to use single photon signals with others that carry an average power many orders of magnitude bigger while sharing as much infrastructure with a conventional network as possible brings obvious problems. The purpose of the present paper is to report our efforts in researching the limits of the integration of QKD in modern optical networks scenarios. We have built a full metropolitan area network testbed comprising a backbone and an access network. The emphasis is put in using as much as possible the same industrial grade technology that is actually used in already installed networks, in order to understand the throughput, limits and cost of deploying QKD in a real network.

D. Lancho; J. Martinez; D. Elkouss; M. Soto; V. Martin

2010-06-09T23:59:59.000Z

446

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

447

The local energy indicator: designing for wind and solar energy systems in the home  

Science Conference Proceedings (OSTI)

This paper proposes and investigates the area of local energy for interactive systems design. We characterize local energy in terms of three themes: contextuality, seasonality, and visibility/tangibility. Here we focus on two specific local energy ... Keywords: design, energy, local energy, sustainability

James Pierce; Eric Paulos

2012-06-01T23:59:59.000Z

448

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

449

Material Disposal Areas  

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

Material Disposal Areas Material Disposal Areas Material Disposal Areas Material Disposal Areas, also known as MDAs, are sites where material was disposed of below the ground surface in excavated pits, trenches, or shafts. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email Material Disposal Areas at LANL The following are descriptions and status updates of each MDA at LANL. To view a current fact sheet on the MDAs, click on LA-UR-13-25837 (pdf). MDA A MDA A is a Hazard Category 2 nuclear facility comprised of a 1.25-acre, fenced, and radiologically controlled area situated on the eastern end of Delta Prime Mesa. Delta Prime Mesa is bounded by Delta Prime Canyon to the north and Los Alamos Canyon to the south.

450

Hanford Groundwater Contamination Areas Shrink as EM Exceeds Cleanup Goals  

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

Groundwater Contamination Areas Shrink as EM Exceeds Groundwater Contamination Areas Shrink as EM Exceeds Cleanup Goals Hanford Groundwater Contamination Areas Shrink as EM Exceeds Cleanup Goals June 26, 2013 - 12:00pm Addthis The 200 West Pump and Treat System is Hanford’s largest facility for treating contaminated groundwater. The 200 West Pump and Treat System is Hanford's largest facility for treating contaminated groundwater. A graphic showing the 200 West Pump and Treat plumes and well network. A graphic showing the 200 West Pump and Treat plumes and well network. The 200 West Pump and Treat System is Hanford's largest facility for treating contaminated groundwater. A graphic showing the 200 West Pump and Treat plumes and well network. RICHLAND, Wash. - Workers supporting groundwater cleanup for EM's

451

Modeling train movements through complex rail networks  

Science Conference Proceedings (OSTI)

Trains operating in densely populated metropolitan areas typically encounter complex trackage configurations. To make optimal use of the available rail capacity, some portions of the rail network may consist of single-track lines while other locations ... Keywords: Trains, deadlock, dispatching, modeling

Quan Lu; Maged Dessouky; Robert C. Leachman

2004-01-01T23:59:59.000Z

452

An East Coast Lightning Detection Network  

Science Conference Proceedings (OSTI)

A magnetic direction-finding network for the detection of lightning cloud-to-ground strikes has been installed, and it records most of the ground flashes from Maine to North Carolina and as far west as Ohio. This area includes or touches fourteen ...

Richard E. Orville; Ronald W. Henderson; Lance F. Bosart

1983-09-01T23:59:59.000Z

453

The new amateur radio university network: AMUNET  

Science Conference Proceedings (OSTI)

The intention of this paper is to give the readers an opportunity to become familiar with nonofficial and often ad-hoc constructed, computerized amateur radio networks, that might be easily used as AMUNETs - the digital links between university centers, ... Keywords: ADL, AMUNET, amateur radio, communication, computer, education, rural area, university

Miroslav Skoric

2005-07-01T23:59:59.000Z

454

Programming models for sensor networks: A survey  

Science Conference Proceedings (OSTI)

Sensor networks have a significant potential in diverse applications some of which are already beginning to be deployed in areas such as environmental monitoring. As the application logic becomes more complex, programming difficulties are becoming a ... Keywords: Programming models and languages, survey, taxonomy

Ryo Sugihara; Rajesh K. Gupta

2008-03-01T23:59:59.000Z

455

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

456

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

457

Naval applications study areas  

SciTech Connect

This memorandum discusses study areas and items that will require attention for the naval studies of the utilization of nuclear propulsion in a submarine-based missile system.

Hadley, J. W.

1962-06-20T23:59:59.000Z

458

Boulder Area Transportation  

Science Conference Proceedings (OSTI)

... NIST does not endorse or guarantee the quality or services provided by these businesses. All Denver/Boulder area transportation companies. ...

2011-11-16T23:59:59.000Z

459

NIST Aperture area measurements  

Science Conference Proceedings (OSTI)

... particularly critical, for example, in climate and weather applications on ... of aperture areas used in exo-atmospheric solar irradiance measurements; ...

2011-11-03T23:59:59.000Z

460

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

Note: This page contains sample records for the topic "local area 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

V-002: EMC NetWorker Module for Microsoft Applications Lets Remote Users  

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

2: EMC NetWorker Module for Microsoft Applications Lets Remote 2: EMC NetWorker Module for Microsoft Applications Lets Remote Users Execute Arbitrary Code and Local Users Obtain Passwords V-002: EMC NetWorker Module for Microsoft Applications Lets Remote Users Execute Arbitrary Code and Local Users Obtain Passwords October 15, 2012 - 6:00am Addthis PROBLEM: EMC NetWorker Module for Microsoft Applications Lets Remote Users Execute Arbitrary Code and Local Users Obtain Passwords PLATFORM: EMC NetWorker Module for Microsoft Applications 2.2.1, 2.3 prior to build 122, 2.4 prior to build 375 ABSTRACT: EMC NetWorker Module for Microsoft Applications Two Vulnerabilities REFERENCE LINKS: EMC Identifier: ESA-2012-025 Secunia Advisory SA50957 SecurityTracker Alert ID: 1027647 CVE-2012-2284 CVE-2012-2290 IMPACT ASSESSMENT: Medium DISCUSSION:

462

V-002: EMC NetWorker Module for Microsoft Applications Lets Remote Users  

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

2: EMC NetWorker Module for Microsoft Applications Lets Remote 2: EMC NetWorker Module for Microsoft Applications Lets Remote Users Execute Arbitrary Code and Local Users Obtain Passwords V-002: EMC NetWorker Module for Microsoft Applications Lets Remote Users Execute Arbitrary Code and Local Users Obtain Passwords October 15, 2012 - 6:00am Addthis PROBLEM: EMC NetWorker Module for Microsoft Applications Lets Remote Users Execute Arbitrary Code and Local Users Obtain Passwords PLATFORM: EMC NetWorker Module for Microsoft Applications 2.2.1, 2.3 prior to build 122, 2.4 prior to build 375 ABSTRACT: EMC NetWorker Module for Microsoft Applications Two Vulnerabilities REFERENCE LINKS: EMC Identifier: ESA-2012-025 Secunia Advisory SA50957 SecurityTracker Alert ID: 1027647 CVE-2012-2284 CVE-2012-2290 IMPACT ASSESSMENT: Medium DISCUSSION:

463

Chaotic time series forecasting using locally quadratic fuzzy neural models  

Science Conference Proceedings (OSTI)

Time series forecasting in highly nonlinear and chaotic systems is a challenging research area with a variety of applications in economics, environmental sciences and various fields of engineering. This paper presents a novel Locally Quadratic Fuzzy ... Keywords: chaotic time series, forecasting, locally quadratic neural fuzzy model

Mohammad J. Mahjoob; Majid Abdollahzade; Reza Zarringhalam; Ahmad Kalhor

2008-05-01T23:59:59.000Z

464

Detecting giant solar flares based on sunspot parameters using bayesian networks  

Science Conference Proceedings (OSTI)

This paper presents the use of Bayesian Networks (BN) in a new area, the detection of solar flares. The paper describes how to learn a Bayesian Network (BN) using a set of variables representing sunspots parameters such that the BN can detect and classify ... Keywords: bayesian networks, forecast systems, fusion of information, solar flares, sunspot

Tatiana Raffaelli; Adriana V. R. Silva; Maurício Marengoni

2006-12-01T23:59:59.000Z

465

A Clean Slate 4D Approach to Network Control and Management  

E-Print Network (OSTI)

A Clean Slate 4D Approach to Network Control and Management Albert Greenberg, Gisli Hjalmtysson on this crucially important and intellectually challenging area. Categories and Subject Descriptors C.2.1 [Network Architecture and Design]: Packet Switching Net- works; C.2.2 [Network Protocols]: Routing Protocols; C.2

Xie, Geoffrey

466

Modelling distributed network security in a petri net- and agent-based approach  

Science Conference Proceedings (OSTI)

Distributed network security is an important concern in modern business environments. Access to critical information and areas has to be limited to authorised users. The Herold research project aims to provide a novel way of managing distributed network ... Keywords: agent-oriented methodologies, distributed network security, petri nets, software agents

Simon Adameit; Tobias Betz; Lawrence Cabac; Florian Hars; Marcin Hewelt; Michael Köhler-Bußmeier; Daniel Moldt; Dimitri Popov; José Quenum; Axel Theilmann; Thomas Wagner; Timo Warns; Lars Wüstenberg

2010-09-01T23:59:59.000Z

467

A learning automata based scheduling solution to the dynamic point coverage problem in wireless sensor networks  

Science Conference Proceedings (OSTI)

The dynamic point coverage problem in wireless sensor networks is to detect some moving target points in the area of the network using as few sensor nodes as possible. One way to deal with this problem is to schedule sensor nodes in such a way that a ... Keywords: Dynamic point coverage, Learning automata, Scheduling, Wireless sensor network

M. Esnaashari; M. R. Meybodi

2010-10-01T23:59:59.000Z

468

On the use of ultrasonic waves as a communications medium in biosensor networks  

Science Conference Proceedings (OSTI)

In this paper, the problem ofwireless communications in human tissue is addressed for biosensor network applications. Today's offered solutions involve the usage of RF communication systems, which have shown to provide adequate performance to ensure ... Keywords: biosensor networks, body area networks, channel model, implanted sensors, ultrasonic communications

Yiannis Davilis; Antonis Kalis; Antonis Ifantis

2010-05-01T23:59:59.000Z

469

Knowledge-based duty cycle estimation in wireless sensor networks: Application for sound pressure monitoring  

Science Conference Proceedings (OSTI)

Wireless sensor networks comprise an important research area and a near future for industry and communications. Wireless sensor networks contain resource-constrained sensor nodes that are powered by small batteries, limited process and memory and wireless ... Keywords: Constrained device, Fuzzy rule based system, Multi-agent system, Sound pressure, Wireless sensor network

J. C. Cuevas-Martinez; J. Canada-Bago; J. A. Fernandez-Prieto; M. A. Gadeo-Martos

2013-02-01T23:59:59.000Z

470

An overview of body sensor networks in enabling pervasive healthcare and assistive environments  

Science Conference Proceedings (OSTI)

The use of sensor networks for healthcare, well-being, and working in extreme environments has long roots in the engineering sector in medicine and biology community. With the growing needs in ubiquitous communications and recent advances in very-low-power ... Keywords: body sensor networks, healthcare applications, ubiquitous computing, wireless body area networks

Charalampos Liolios; Charalampos Doukas; George Fourlas; Ilias Maglogiannis

2010-06-01T23:59:59.000Z

471

Making sensor networks immortal: an energy-renewal approach with wireless power transfer  

Science Conference Proceedings (OSTI)

Wireless sensor networks are constrained by limited battery energy. Thus, finite network lifetime is widely regarded as a fundamental performance bottleneck. Recent breakthrough in the area of wireless power transfer offers the potential of removing ... Keywords: lifetime, optimization, wireless power transfer, wireless sensor network (WSN)

Liguang Xie; Yi Shi; Y. Thomas Hou; Hanif D. Sherali

2012-12-01T23:59:59.000Z

472

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

473

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

474

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

475

Designing Energy-Efficient Low-Diameter On-chip Networks with Equalized Interconnects  

E-Print Network (OSTI)

In a power and area constrained multicore system, the on-chip communication network needs to be carefully designed to maximize the system performance and programmer productivity while minimizing energy and area. In this ...

Joshi, Ajay J.

476

Climate Technology Initiative Private Financing Advisory Network (CTI PFAN)  

Open Energy Info (EERE)

Initiative Private Financing Advisory Network (CTI PFAN) Initiative Private Financing Advisory Network (CTI PFAN) Jump to: navigation, search Logo: Climate Technology Initiative Private Financing Advisory Network (CTI PFAN) Name Climate Technology Initiative Private Financing Advisory Network (CTI PFAN) Agency/Company /Organization Climate Technology Initiative (CTI), United States Agency for International Development (USAID), Renewable Energy and Energy Efficiency Partnership (REEEP) Partner International Centre for Environmental Technology Transfer Sector Energy Focus Area Agriculture, Biomass, - Biofuels, - Landfill Gas, - Waste to Energy, Buildings, Energy Efficiency, Forestry, Geothermal, Greenhouse Gas, Solar, Transportation, Water Power, Wind Topics Adaptation, Co-benefits assessment, - Energy Access, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, Implementation, Low emission development planning, -NAMA, -TNA

477

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

478

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

479

The Computational Materials and Chemical Sciences Network (CMCSN) | U.S.  

Office of Science (SC) Website

The Computational Materials and Chemical Sciences Network (CMCSN) The Computational Materials and Chemical Sciences Network (CMCSN) Materials Sciences and Engineering (MSE) Division MSE Home About Research Areas Energy Frontier Research Centers (EFRCs) DOE Energy Innovation Hubs BES Funding Opportunities The Computational Materials and Chemical Sciences Network (CMCSN) Theoretical Condensed Matter Physics Scientific Highlights Reports and Activities Principal Investigators' Meetings BES Home Research Areas The Computational Materials and Chemical Sciences Network (CMCSN) Print Text Size: A A A RSS Feeds FeedbackShare Page The U.S. Department of Energy, Office of Basic Energy Sciences, provides support for Computational Materials and Chemical Sciences Network (CMCSN) projects through the Theoretical Condensed Matter Physics & Theoretical

480

and Local Access  

E-Print Network (OSTI)

Work Item Description Analysis of the feasibility of a satellite based broadcast layer using the UTRA FDD W-CDMA technology to complement UTRAN and possibly GERAN. 1 3GPP Work Area

X Services

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "local area 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

Research Areas - Argonne National Laboratories, Materials Sicence Division  

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

http://www.msd.anl.gov/research-areas Sun, 12 Jan 2014 01:06:27 +0000 Joomla! 1.6 - Open Source Content Management en-gb Dynamics of Active Self-Assemble Materials http://www.msd.anl.gov/research-areas/dynamics-of-active-self-assemble-materials http://www.msd.anl.gov/research-areas/dynamics-of-active-self-assemble-materials krajniak@anl.gov (Ken Krajniak) Fri, 13 May 2011 17:17:28 +0000 Elastic Relaxation and Correlation of Local Strain Gradients with Ferroelectric Domains in (001) BiFeO3 Nanostructures http://www.msd.anl.gov/research-areas/elastic-relaxation-and-correlation-of-local-strain-gradients-with-ferroelectric-domains-in-001-bifeo3-nanostructures http://www.msd.anl.gov/research-areas/elastic-relaxation-and-correlation-of-local-strain-gradients-with-ferroelectric-domains-in-001-bifeo3-nanostructures

482

Lithium Local Pseudopotential Using  

E-Print Network (OSTI)

Lithium Local Pseudopotential Using DFT Sergio Orozco Student Advisor: Chen Huang Faculty Mentor Lithium LPS Test Lithium LPS #12;Density Functional Theory (DFT) Successful quantum mechanical approach (1979) #12;Building LPS for Lithium Create a LPS using NLPS density for Lithium Test LPS by comparing

Petta, Jason

483

Local microwave background radiation  

E-Print Network (OSTI)

An inquiry on a possible local origin for the Microwave Background Radiation is made. Thermal MBR photons are contained in a system called {\\it magnetic bottle} which is due to Earth magnetic field and solar wind particles, mostly electrons. Observational tests are anticipated.

Domingos S. L. Soares

2006-07-11T23:59:59.000Z

484

PARTNERSHIP AMONG LOCAL  

E-Print Network (OSTI)

) IN GENERAL- The term `qualified fuel cell property' means a fuel cell power plant which-- (i) has a nameplate 0.5 kilowatt of capacity of such property. (C) FUEL CELL POWER PLANT- The term `fuel cell powerA MODEL PARTNERSHIP AMONG LOCAL LEADERS SIMPLE, SMART REFORM TO PROMOTE JOB GROWTH The Fuel Cell

485

Chemical Plume Source Localization  

Science Conference Proceedings (OSTI)

This paper addresses the problem of estimating a likelihood map for the location of the source of a chemical plume using an autonomous vehicle as a sensor probe in a fluid flow. The fluid flow is assumed to have a high Reynolds number. Therefore, the ... Keywords: Autonomous vehicles, Bayesian inference methods, chemical plume tracing, online mapping, online planning, plume source localization

Shuo Pang; J. A. Farrell

2006-10-01T23:59:59.000Z

486

Mining Local Buffer Data  

Science Conference Proceedings (OSTI)

Web mining employs the techniques of data mining to extract information from the Web for a variety of purposes. The usual sources of data are the log files of WWW or proxy servers. The paper examines the possibility of using the local browser buffer ... Keywords: Behavioural Targeting, Browser Cache, Cacheability, Data Mining, Heaps Law, Internet, Latency, Zipf Law

Andrzej Siemi?ski

2008-06-01T23:59:59.000Z

487

An autonomous wireless sensor network deployment system using mobile robots for human existence detection in case of disasters  

Science Conference Proceedings (OSTI)

This paper presents a novel approach of using autonomous mobile robots to deploy a Wireless Sensor Network (WSN) for human existence detection in case of disasters. During WSN deployment, mobile robots perform cooperative Simultaneous Localization and ... Keywords: Cooperative Simultaneous Localization and Mapping (SLAM), Human existence detection, Map merging, Sensor node deployment strategies, Wireless sensor networks

Gurkan Tuna, V. Cagri Gungor, Kayhan Gulez

2014-02-01T23:59:59.000Z

488

Fueling area site assessment  

SciTech Connect

This report provides results of a Site Assessment performed at the Fuel Storage Area at Buckley ANG Base in Aurora, Colorado. Buckley ANG Base occupies 3,328 acres of land within the City of Aurora in Arapahoe County, Colorado. The Fuel Storage Area (also known as the Fueling Area) is located on the west side of the Base at the intersection of South Powderhorn Street and East Breckenridge Avenue. The Fueling Area consists of above ground storage tanks in a bermed area, pumps, piping, valves, an unloading stand and a fill stand. Jet fuel from the Fueling Area is used to support aircraft operations at the Base. Jet fuel is stored in two 200,000 gallon above ground storage tanks. Fuel is received in tanker trucks at the unloading stand located south and east of the storage tanks. Fuel required for aircraft fueling and other use is transferred into tanker trucks at the fill stand and transported to various points on the Base. The Fuel Storage Area has been in operation for over 20 years and handles approximately 7 million gallons of jet fuel annually.

1996-08-15T23:59:59.000Z

489

NSTB Summarizes Vulnerable Areas  

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

NSTB Summarizes Vulnerable Areas NSTB Summarizes Vulnerable Areas Commonly Found in Energy Control Systems Experts at the National SCADA Test Bed (NSTB) discovered some common areas of vulnerability in the energy control systems assessed between late 2004 and early 2006. These vulnerabilities ranged from conventional IT security issues to specific weaknesses in control system protocols. The paper "Lessons Learned from Cyber Security Assessments of SCADA and Energy Management Systems" describes the vulnerabilities and recommended strategies for mitigating them. It should be of use to asset owners and operators, control system vendors, system integrators, and third-party vendors interested in enhancing the security characteristics of current and future products.

490

area | OpenEI  

Open Energy Info (EERE)

area area Dataset Summary Description These estimates are derived from a composite of high resolution wind resource datasets modeled for specific countries with low resolution data originating from the National Centers for Environmental Prediction (United States) and the National Center for Atmospheric Research (United States) as processed for use in the IMAGE model. The high resolution datasets were produced by the National Renewable Energy Laboratory (United States), Risø DTU National Laboratory (Denmark), the National Institute for Space Research (Brazil), and the Canadian Wind Energy Association. The data repr Source National Renewable Energy Laboratory Date Released Unknown Date Updated Unknown Keywords area capacity clean energy international National Renewable Energy Laboratory

491

LIS: Localization based on an intelligent distributed fuzzy system applied to a WSN  

Science Conference Proceedings (OSTI)

The localization of the sensor nodes is a fundamental problem in wireless sensor networks. There are a lot of different kinds of solutions in the literature. Some of them use external devices like GPS, while others use special hardware or implicit parameters ... Keywords: CL, Centroid, Fuzzy system, Localization, RSSI, WSN

D. F. Larios; J. Barbancho; F. J. Molina; C. León

2012-05-01T23:59:59.000Z

492

Local Atomic Density of Microporous Carbons  

DOE Green Energy (OSTI)

We investigated the structure of two disordered carbons: activated carbon fibers (ACF) and ultramicroporous carbon (UMC). These carbons have highly porous structure with large surface areas and consequently low macroscopic density that should enhance adsorption of hydrogen. We used the atomic pair distribution function to probe the local atomic arrangements. The results show that the carbons maintain an in-plane local atomic structure similar to regular graphite, but the stacking of graphitic layers is strongly disordered. Although the local atomic density of these carbons is lower than graphite, it is only {approx}20% lower and is much higher than the macroscopic density due to the porosity of the structure. For this reason, the density of graphene sheets that have optimum separation for hydrogen adsorption is lower than anticipated.

Dmowski, Wojtek; Contescu, Cristian I.; Llobet, Anna; Gallego, Nidia C.; Egami, Takeskhi (Tennessee-K); (ORNL); (LANL)

2012-07-12T23:59:59.000Z

493

USING MULTITAIL NETWORKS IN HIGH PERFORMANCE CLUSTERS  

Science Conference Proceedings (OSTI)

Using multiple independent networks (also known as rails) is an emerging technique to overcome bandwidth limitations and enhance fault-tolerance of current high-performance clusters. We present and analyze various venues for exploiting multiple rails. Different rail access policies are presented and compared, including static and dynamic allocation schemes. An analytical lower bound on the number of networks required for static rail allocation is shown. We also present an extensive experimental comparison of the behavior of various allocation schemes in terms of bandwidth and latency. Striping messages over multiple rails can substantially reduce network latency, depending on average message size, network load and allocation scheme. The methods compared include a static rail allocation, a round-robin rail allocation, a dynamic allocation based on local knowledge, and a rail allocation that reserves both end-points of a message before sending it. The latter is shown to perform better than other methods at higher loads: up to 49% better than local-knowledge allocation and 37% better than the round-robin allocation. This allocation scheme also shows lower latency and it saturates on higher loads (for messages large enough). Most importantly, this proposed allocation scheme scales well with the number of rails and message sizes.

S. COLL; E. FRACHTEMBERG; F. PETRINI; A. HOISIE; L. GURVITS

2001-03-01T23:59:59.000Z

494

Energy localization in two chaotically coupled systems  

E-Print Network (OSTI)

We set up and analyze a random matrix model to study energy localization and its time behavior in two chaotically coupled systems. This investigation is prompted by a recent experimental and theoretical study of Weaver and Lobkis on coupled elastomechanical systems. Our random matrix model properly describes the main features of the findings by Weaver and Lobkis. Due to its general character, our model is also applicable to similar systems in other areas of physics -- for example, to chaotically coupled quantum dots.

Johan Gronqvist; Thomas Guhr

2005-06-08T23:59:59.000Z

495

Social Recommender Systems Based on Coupling Network Structure Analysis  

E-Print Network (OSTI)

The past few years has witnessed the great success of recommender systems, which can significantly help users find relevant and interesting items for them in the information era. However, a vast class of researches in this area mainly focus on predicting missing links in bipartite user-item networks (represented as behavioral networks). Comparatively, the social impact, especially the network structure based properties, is relatively lack of study. In this paper, we firstly obtain five corresponding network-based features, including user activity, average neighbors' degree, clustering coefficient, assortative coefficient and discrimination, from social and behavioral networks, respectively. A hybrid algorithm is proposed to integrate those features from two respective networks. Subsequently, we employ a machine learning process to use those features to provide recommendation results in a binary classifier method. Experimental results on a real dataset, Flixster, suggest that the proposed method can significan...

Hu, Xiao; Chen, Xiaolong; Zhang, Zi-Ke

2012-01-01T23:59:59.000Z

496

Geographic Area Month  

Gasoline and Diesel Fuel Update (EIA)

Fuels by PAD District and State (Cents per Gallon Excluding Taxes) - Continued Geographic Area Month No. 1 Distillate No. 2 Distillate a No. 4 Fuel b Sales to End Users Sales for...

497

3. Producing Areas  

U.S. Energy Information Administration (EIA)

The OCS area provides surplus capacity to meet major seasonal swings in the lower 48 States gas requirements. The ... Jun-86 9,878 17,706 1,460 19,166 9,288 51.5

498

Western Area Power Administration  

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

Loveland Area Projects November 29-30, 2011 2 Agenda * Overview of Western Area Power Administration * Post-1989 Loveland Area Projects (LAP) Marketing Plan * Energy Planning and Management Program * Development of the 2025 PMI Proposal * 2025 PMI Proposal * 2025 PMI Comment Period & Proposal Information * Questions 3 Overview of Western Area Power Administration (Western) * One of four power marketing administrations within the Department of Energy * Mission: Market and deliver reliable, renewable, cost-based Federal hydroelectric power and related services within a 15-state region of the central and western U.S. * Vision: Provide premier power marketing and transmission services Rocky Mountain Region (RMR) is one of five regional offices 4 Rocky Mountain Region

499

300 AREA URANIUM CONTAMINATION  

SciTech Connect

{sm_bullet} Uranium fuel production {sm_bullet} Test reactor and separations experiments {sm_bullet} Animal and radiobiology experiments conducted at the. 331 Laboratory Complex {sm_bullet} .Deactivation, decontamination, decommissioning,. and demolition of 300 Area facilities

BORGHESE JV

2009-07-02T23:59:59.000Z

500

Decontamination & decommissioning focus area  

Science Conference Proceedings (OSTI)

In January 1994, the US Department of Energy Office of Environmental Management (DOE EM) formally introduced its new approach to managing DOE`s environmental research and technology development activities. The goal of the new approach is to conduct research and development in critical areas of interest to DOE, utilizing the best talent in the Department and in the national science community. To facilitate this solutions-oriented approach, the Office of Science and Technology (EM-50, formerly the Office of Technology Development) formed five Focus AReas to stimulate the required basic research, development, and demonstration efforts to seek new, innovative cleanup methods. In February 1995, EM-50 selected the DOE Morgantown Energy Technology Center (METC) to lead implementation of one of these Focus Areas: the Decontamination and Decommissioning (D & D) Focus Area.

NONE

1996-08-01T23:59:59.000Z