National Library of Energy BETA

Sample records for gap substation transmission

  1. Electrician - Foreman II (Transmission Lines & Substations) ...

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

    Region Transmission Lines and Substation Maintenance (G5200) 615 S. 43rd Avenue Phoenix, AZ 85009 Duty Location is Page, AZ Find out more about living conditions at this...

  2. VULNERABILITY OF BLUETOOTH TO IMPULSIVE NOISE IN ELECTRICITY TRANSMISSION SUBSTATIONS

    E-Print Network [OSTI]

    Atkinson, Robert C

    be routed around electricity substation compounds wirelessly. Furthermore, wireless communication with the deployment of Bluetooth (and other similar wireless technologies) in electricity substations for controlVULNERABILITY OF BLUETOOTH TO IMPULSIVE NOISE IN ELECTRICITY TRANSMISSION SUBSTATIONS S A Bhattil

  3. TRANSMISSION AND DISTRIBUTION; POWER SUBSTATIONS; CAPITALIZED...

    Office of Scientific and Technical Information (OSTI)

    AND DISTRIBUTION; POWER SUBSTATIONS; CAPITALIZED COST; CALCULATION METHODS; PLANNING; COST ESTIMATION; MATHEMATICAL MODELS The displacement or deferral of substation...

  4. EIS-0400: Granby Pumping Plant Switchyard-Windy Gap Substation Transmission Line Rebuild Project, Grand County, CO

    Broader source: Energy.gov [DOE]

    Western Area Power Administration prepared an EIS, with the U.S. Forest Service, Bureau of Land Management, and Grand County (Colorado) as cooperating agencies, to evaluate the potential environmental impacts of rebuilding a 12-mile, 69 kV electric transmission line in Grand County. The proposed project would rebuild the single-circuit line as a double-circuit transmission line and add a second power transformer. Western identified potentially significant impacts while preparing an EA for this proposal (DOE/EA-1520) and prepared an EIS instead of completing the EA. Further information about the project is available on the project website.

  5. Application Filling Requirements for Transmission Line and Substation Construction Projects (Wisconsin)

    Broader source: Energy.gov [DOE]

    This page describes application requirements for all projects that involve the installation of an electricity transmission line or substation that also require either a Certificate of Public...

  6. Canby Area Service Project substation and associated transmission line. Environmental Assessment

    SciTech Connect (OSTI)

    Not Available

    1992-02-01

    Bonneville Power Administration (BPA) provides power to Surprise Valley Electrification Corporation (SVEC) in Modoc County, California. BPA uses PacificCorp`s substation and transmission facilities between Alturas and Canby, California to transfer power to SVEC`s Canby Substation. In the next year, SVEC expects increased industrial, agricultural, and residential electric loads on their 69-kV transmission system south of Canby. SVEC`s substation can accommodate only about 10 percent of the expected additional electric load. BPA`s proposed action is intended to meet SVEC`s increasing electric load. BPA proposes to meet SVEC`s increasing energy load by tapping into BPA`s existing BPA Malin-Warner 230-kV transmission line, and building an 7.9-mile transmission line to a new BPA substation. BPA proposes to build the new substation next to the west side of SVEC`s Canby Substation (Figure 1). This new substation will allow SVEC to move the additional power over their existing transmission or distribution lines. This report is the environmental assessment of the potential impact of the proposed project. The assessment determined that no ``environmental impact statement`` is not required.

  7. Canby Area Service Project : Substation and Associated Transmission Line : Environmental Assessment.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1992-02-01

    Bonneville Power Administration (BPA) provides power to Surprise Valley Electrification Corporation (SVEC) in Modoc County, California. BPA uses PacificCorp's substation and transmission facilities between Alturas and Canby, California to transfer power to SVEC's Canby Substation. In the next year, SVEC expects increased industrial, agricultural, and residential electric loads on their 69-kV transmission system south of Canby. SVEC's substation can accommodate only about 10 percent of the expected additional electric load. BPA's proposed action is intended to meet SVEC's increasing electric load. BPA proposes to meet SVEC's increasing energy load by tapping into BPA's existing BPA Malin-Warner 230-kV transmission line, and building an 7.9-mile transmission line to a new BPA substation. BPA proposes to build the new substation next to the west side of SVEC's Canby Substation (Figure 1). This new substation will allow SVEC to move the additional power over their existing transmission or distribution lines. This report is the environmental assessment of the potential impact of the proposed project. The assessment determined that no environmental impact statement'' is not required.

  8. Marys Lake 69/115-kV transmission line upgrade and substation expansion projects

    SciTech Connect (OSTI)

    NONE

    1996-05-01

    Western Area Power Administration (Western) and the Platte River Power Authority (Platte River) propose to upgrade portions of the existing electric transmission and substation system that serves the Town of Estes Park, Colorado. The existing transmission lines between the Estes Power Plant Switchyard and the Marys Lake Substation include a 115,000 volt (115-kV) line and 69,000 volt (69-kV) line. Approximately one mile is a double-circuit 115/69-kV line on steel lattice structures, and approximately two miles consists of separate single-circuit 115-kV and a 69-kV lines, constructed on wood H-Frame structures. Both lines were constructed in 1951 by the US Bureau of Reclamation. The existing transmission lines are on rights-of-way (ROW) that vary from 75 feet to 120 feet and are owned by Western. There are 48 landowners adjacent to the existing ROW. All of the houses were built adjacent to the existing ROW after the transmission lines were constructed. Upgrading the existing 69-kV transmission line between the Marys Lake Substation and the Estes Power Plant Switchyard to 115-kV and expanding the Marys Lake Substation was identified as the most effective way in which to improve electric service to Estes Park. The primary purpose and need of the proposed project is to improve the reliability of electric service to the Town of Estes Park. Lack of reliability has been a historical concern, and reliability will always be less than desired until physical improvements are made to the electrical facilities serving Estes Park.

  9. EIS-0483: Estes to Flatiron Substation Transmission Lines Rebuild Project, Larimer County, Colorado

    Broader source: Energy.gov [DOE]

    Western Area Power Administration (Western) – with USDA Forest Service, Arapaho and Roosevelt National Forest, as a cooperating agency – is preparing an EIS that analyzes the potential environmental impacts of a proposal to rebuild and upgrade two 115-kilovolt single-circuit transmission lines between the Flatiron Substation and the intersection of Mall Road and U.S. Highway 36 in Estes Park, Larimer County, Colorado.

  10. Light transmission through a triangular air gap

    E-Print Network [OSTI]

    Silvania A. Carvalho; Stefano De Leo

    2013-05-31

    Due to the recent interest in studying propagation of light through triangular air gaps, we calculate, by using the analogy between optics and quantum mechanics and the multiple step technique, the transmissivity through a triangular air gap surrounded by an homogeneous dielectric medium. The new formula is then compared with the formula used in literature. Starting from the qualitative and quantitative differences between these formulas, we propose optical experiments to test our theoretical results.

  11. Fact #850: December 8, 2014 Automatic Transmissions have closed the Fuel Economy Gap with Manual Transmissions

    Broader source: Energy.gov [DOE]

    Historically, manual transmissions have delivered better fuel economy than automatic transmissions. However, improvements in the efficiency of automatic transmissions have closed that gap in recent...

  12. Corrigendum Corrigendum to "Gap junction-mediated electrical transmission

    E-Print Network [OSTI]

    Rash, John E.

    Corrigendum Corrigendum to "Gap junction-mediated electrical transmission: Regulatory mechanisms, show variability in the electrical conductance of the synaptic transmission, even though the pre chemical component. Thus, electrical synapses from neighboring club endings coexist at different degrees

  13. Gap junction-mediated electrical transmission: Regulatory mechanisms and plasticity

    E-Print Network [OSTI]

    Rash, John E.

    Gap junction-mediated electrical transmission: Regulatory mechanisms and plasticity Alberto E of synaptic transmission: chemical and electrical. While most efforts have been dedicated to the understanding in revised form 16 May 2012 Accepted 23 May 2012 Available online 31 May 2012 Keywords: Electrical synapse

  14. Fact #850: December 8, 2014 Automatic Transmissions have closed the Fuel Economy Gap with Manual Transmissions- Dataset

    Broader source: Energy.gov [DOE]

    Excel file with dataset for Fact #850: December 8, 2014 Automatic Transmissions have closed the Fuel Economy Gap with Manual Transmissions

  15. Wolf Point Substation, Roosevelt County, Montana

    SciTech Connect (OSTI)

    Not Available

    1991-05-01

    The Western Area Power Administration (Western), an agency of the United States Department of Energy, is proposing to construct the 115-kV Wolf Point Substation near Wolf Point in Roosevelt County, Montana (Figure 1). As part of the construction project, Western's existing Wolf Point Substation would be taken out of service. The existing 115-kV Wolf Point Substation is located approximately 3 miles west of Wolf Point, Montana (Figure 2). The substation was constructed in 1949. The existing Wolf Point Substation serves as a Switching Station'' for the 115-kV transmission in the region. The need for substation improvements is based on operational and reliability issues. For this environmental assessment (EA), the environmental review of the proposed project took into account the removal of the old Wolf Point Substation, rerouting of the five Western lines and four lines from the Cooperatives and Montana-Dakota Utilities Company, and the new road into the proposed substation. Reference to the new proposed Wolf Point Substation in the EA includes these facilities as well as the old substation site. The environmental review looked at the impacts to all resource areas in the Wolf Point area. 7 refs., 6 figs.

  16. Exploration of Resource and Transmission Expansion Decisions in the Western Renewable Energy Zone Initiative

    E-Print Network [OSTI]

    Mills, Andrew

    2010-01-01

    operating costs, and substation costs for substations thatsubstation, and are derived from a simple levelized-cost-of-above) transmission substation. Capital costs vary for the

  17. Demo Abstract: Wireless Sensor Network for Substation Monitoring: Design and Deployment

    E-Print Network [OSTI]

    Nasipuri, Asis

    -voltage substations, lower installation cost, and utilization of the distributed pro- cessing capabilities of wirelessDemo Abstract: Wireless Sensor Network for Substation Monitoring: Design and Deployment Asis-Transmissions & Substations 9625 Research Drive Charlotte, NC 28262 {lvanderz,birodriguez} @epri.com Ralph McKosky, Joseph

  18. Substation automation problems and possibilities

    SciTech Connect (OSTI)

    Smith, H.L.

    1996-10-01

    The evolutionary growth in the use and application of microprocessors in substations has brought the industry to the point of considering integrated substation protection, control, and monitoring systems. An integrated system holds the promise of greatly reducing the design, documentation, and implementation cost for the substation control, protection, and monitoring systems. This article examines the technical development path and the present implementation problems.

  19. Transmission and dispersion relations of perfect and defect-containing waveguide structures in phononic band gap materials

    E-Print Network [OSTI]

    Deymier, Pierre

    Transmission and dispersion relations of perfect and defect-containing waveguide structures investigate transmission through perfect linear waveguides, waveguides containing a resonant cavity a large frequency range of the band gap by varying the width of the guide. The transmission through

  20. Substation alarm multiplexing system (SAMS)

    SciTech Connect (OSTI)

    ElBadaly, H.; Gaughan, J.; Ward, G.; Amengual, S.

    1996-03-01

    This paper describes an on going R&D project to develop, design, install, and assess the field performance of an advanced substation alarm system. SAMS provides a highly fault-tolerant system for the reporting of equipment alarms. SAMS separates and identifies each of the multiple alarm contacts, transmits an alarm condition over existing substation two-wire system, and displays the alarm source, and its associated technical information, on a touch-screen monitor inside the substation control room, and a remote central location and on a hand held terminal which may be carried anywhere within the substation. SAMS is currently installed at the Sherman Creek substation in the Bronx for the purpose of a three month field evaluation.

  1. Performance Simulations of WLAN and Zigbee in Electricity Substation Impulsive Noise Environments

    E-Print Network [OSTI]

    Atkinson, Robert C

    . The parameters of the impulsive noise model are estimated from data recorded from an electricity transmission The traditional power transmission paradigm is changing. The more efficient, complex, electricity grid is employed to model the electricity transmission substation noise environment. It also explains the process

  2. BPA, Transmission, I-5 Corridor Reinforcement Project factsheet...

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

    a new substation near Castle Rock, Wash.; a new 500 kV transmission line, a new Sundial Substation near Troutdale, Ore.; and new and improved access roads to these facilities....

  3. Chapter 2 Transmission Facility Siting, Route Segments and Action...

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

    the new line and the existing line strung on the new towers. Substations A new 500-kV substation at each end of the transmission line. About 25-50 acres would be required for...

  4. Western Area Power Administration Transmission Infrastructure...

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

    connecting near line's midpoint 161 million in TIP funding; 213 million project cost Substation construction began June 2010 Transmission construction began...

  5. Richard Shaheen named Senior VP of Transmission

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

    transmission lines and initiated upgrades to Celilo Substation and the Pacific Direct Current Intertie. "Richard is an excellent leader, and his 25-plus years of experience at a...

  6. Proponent's Environmental Assessment (PEA) Checklist for Transmission...

    Open Energy Info (EERE)

    Proponent's Environmental Assessment (PEA) Checklist for Transmission Line and Substation Projects Jump to: navigation, search OpenEI Reference LibraryAdd to library Permitting...

  7. Cyber Security in Smart Grid Substations

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Cyber Security in Smart Grid Substations Thijs Baars Lucas van den Bemd Michail Theuns Robin van.089 3508 TB Utrecht The Netherlands #12;CYBER SECURITY IN SMART GRID SUBSTATIONS Thijs Baars T.Brinkkemper@uu.nl Abstract. This report describes the state of smart grid security in Europe, specifically the Netherlands

  8. EIS-0474: Southline Transmission Line Project; Arizona and New...

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

    consist of a new 225-mile transmission line between existing substations at Afton, New Mexico, and Apache, Arizona, and improvements to approximately 130 miles of existing...

  9. BPA, Transmission, I-5 Corridor Reinforcement Project, August...

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

    Power Administration has refined the potential transmission line route segments and substation sites for the proposed I-5 Corridor Reinforcement Project. The refinements are...

  10. Earth resistivity measurement near substation ground grids

    SciTech Connect (OSTI)

    Lodwig, S.G.; Mateja, S.A. [ComEd, Chicago, IL (United States)

    1996-11-01

    Proper substation grounding grid design requires good, accurate soil resistivity measurements. This data is essential to model the substation ground grid to design a safe ground grid with a satisfactory ground grid resistance at minimum cost. For substations with several decades of service, there is some concern that a grid may have deteriorated, been damaged during equipment installation or excavation, or that initial soil resistivity measurements were lost or may not have been correctly performed. Ground grid conductors change the substation surface voltage distribution. Any voltage measurements taken at the complete substation will also vary from the tests made without conductors present. During testing, current was injected in the soil by probes placed near the ground grid. The current tends to follow the ground grid conductors since copper is a far better conductor than the soil it is placed in. Resistance readings near grids will be lower than readings in undisturbed soil. Since computer models were unavailable for many years, analyzing the effect of the grid conductors on soil resistivity measurements was very difficult. As a result, soil resistivity measurements made close to substations were of little use to the engineer unless some means of correcting the measured values could be developed. This paper will present results of soil resistivity measurements near a substation ground grid before and after a ground grid has been installed and describes a means of calculating the undisturbed soil model.

  11. EIS-0421: Big Eddy-Knight Transmission Line

    Broader source: Energy.gov [DOE]

    BPA is proposing to build a new 500 kilovolt (kV) transmission line in Wasco County, Oregon and Klickitat County, Washington and a new substation in Klickitat County. The new BPA transmission line...

  12. Utility programs for substation diagnostics development

    SciTech Connect (OSTI)

    NONE

    1996-03-01

    This article is a brief overview of the opening remarks of the utility panel. These remarks developed a number of interesting substation diagnostic activities and concepts in which the electric utilities are engaged and outlined the considerations which must accompany development of diagnostic sensors and systems. These area include transformer diagnostics, circuit breaker diagnostics, and testing/cost of diagnostic systems.

  13. EIS-0285: Transmission System Vegetation Management Program

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration (Bonneville) is responsible for maintaining a network of 24,000 kilometers (km) or 15,000 miles (mi.) of electric transmission lines and 350 substations. This...

  14. HEMP-induced transients in electric power substations

    SciTech Connect (OSTI)

    Wiggins, C.M.; Thomas, D.E.; Salas, T.M. (BDM International, Inc., Albuquerque, NM (United States))

    1992-02-01

    A nuclear detonation in or above the earth's atmosphere produces an intense electromagnetic pulse (EMP). A large portion of the EMP electromagnetic energy is within the RF spectrum. A detonation at high altitudes above 40 km produces an EMP called high-altitude EMP (HEMP). HEMP is a steep-front short duration transient with a rise time on the order of a few nanoseconds which decays to near zero in less than a microsecond. A single high-altitude burst can subject much of the continental United States to intense HEMP electric fields on the order of tens of kilovolts per meter. The intense transient HEMP will induce fast transients in high-voltage transmission lines and bus structures, instrumentation cables, and control wires in power transmission and distribution (T D) substations. A system of traveling wave coupling models for a 500 kV substation, including models for the high voltage primary bus, components (circuit breakers, disconnect switches, power transformers, and current and voltage instrument transformers), low voltage control wiring circuits, and a number of conducted and radiated interference coupling modes, had been developed earlier by EPRI. These EPRI served as the baseline for the present HEMP coupling investigations. The HEMP effects on protective relays were assessed for a nominal HEMP environment using several new field coupling models merged with the switching transient data. It is found that a representative solid state relay is unlikely to be damaged or to misoperate by the nominal HEMP threat with a peak field strength of 50 kV/m. However, it is possible for both DC control wires to flash over to ground simultaneously, causing fuses to blow and placing the relay in an inoperative state.

  15. HEMP-induced transients in electric power substations. Final report

    SciTech Connect (OSTI)

    Wiggins, C.M.; Thomas, D.E.; Salas, T.M. [BDM International, Inc., Albuquerque, NM (United States)

    1992-02-01

    A nuclear detonation in or above the earth`s atmosphere produces an intense electromagnetic pulse (EMP). A large portion of the EMP electromagnetic energy is within the RF spectrum. A detonation at high altitudes above 40 km produces an EMP called high-altitude EMP (HEMP). HEMP is a steep-front short duration transient with a rise time on the order of a few nanoseconds which decays to near zero in less than a microsecond. A single high-altitude burst can subject much of the continental United States to intense HEMP electric fields on the order of tens of kilovolts per meter. The intense transient HEMP will induce fast transients in high-voltage transmission lines and bus structures, instrumentation cables, and control wires in power transmission and distribution (T & D) substations. A system of traveling wave coupling models for a 500 kV substation, including models for the high voltage primary bus, components (circuit breakers, disconnect switches, power transformers, and current and voltage instrument transformers), low voltage control wiring circuits, and a number of conducted and radiated interference coupling modes, had been developed earlier by EPRI. These EPRI served as the baseline for the present HEMP coupling investigations. The HEMP effects on protective relays were assessed for a nominal HEMP environment using several new field coupling models merged with the switching transient data. It is found that a representative solid state relay is unlikely to be damaged or to misoperate by the nominal HEMP threat with a peak field strength of 50 kV/m. However, it is possible for both DC control wires to flash over to ground simultaneously, causing fuses to blow and placing the relay in an inoperative state.

  16. EA-1671: Big River Substation to Poston Substation 69-Kilovolt Transmission Line Project, Arizona and California

    Broader source: Energy.gov [DOE]

    The Department of the Interior’s Bureau of Indian Affairs considered preparing this EA, with DOE’s Western Area Power Administration as a cooperating agency. This project has been canceled.

  17. Modeling and Simulating Blast Effects on Electric Substations

    SciTech Connect (OSTI)

    Lyle G. Roybal; Robert F. Jeffers; Kent E. McGillivary; Tony D. Paul; Ryan Jacobson

    2009-05-01

    A software simulation tool was developed at the Idaho National Laboratory to estimate the fragility of electric substation components subject to an explosive blast. Damage caused by explosively driven fragments on a generic electric substation was estimated by using a ray-tracing technique to track and tabulate fragment impacts and penetrations of substation components. This technique is based on methods used for assessing vulnerability of military aircraft and ground vehicles to explosive blasts. An open-source rendering and ray-trace engine was used for geometric modeling and interactions between fragments and substation components. Semi-empirical material interactions models were used to calculate blast parameters and simulate high-velocity material interactions between explosively driven fragments and substation components. Finally, a Monte Carlo simulation was added to model the random nature of fragment generation allowing a skilled analyst to predict failure probabilities of substation components.

  18. Data collecting and processing for substation integration enhancement 

    E-Print Network [OSTI]

    Jakovljevic, Sasa

    2004-09-30

    to collect and process data from such computer-based devices. An advanced data collecting and processing solution is developed and implemented as Integrated Substation Software in an effort to enhance substation integration. This report describes a... and processing is automated and repeated in equidistant time intervals. Results of processing and related reports are concisely displayed on the user interface screen and exported through data files. The Substation Integration Software was tested through...

  19. Benefits of Using Mobile Transformers and Mobile Substations...

    Office of Environmental Management (EM)

    Using Mobile Transformers and Mobile Substations for Rapidly Restoring Electrical Service: a Report to the United States Congress Pursuant to Section 1816 of the Energy Policy Act...

  20. Transmission

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAbout / Transforming Y-12 Transforming Y-12ComplexTransmission

  1. Requirements Specification for and Evaluation of an Automated Substation Monitoring System

    E-Print Network [OSTI]

    Requirements Specification for and Evaluation of an Automated Substation Monitoring System Mladen) and other monitoring sensors and devices installed in the substation. With this variety of installed IEDs

  2. Abstract--With the deregulation and restructuring of utility industry, many substation automation applications are being

    E-Print Network [OSTI]

    and Data Acquisition (SCADA), substation switching, transients simulation I. INTRODUCTION ITH Control and Data Acquisition (SCADA) and Energy Management System (EMS) applications of substation

  3. Proposed Transmission Towers Proposed New Substation Sites Proposed...

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

    represent any legal information or boundaries. Sources: BPA 2012, Clark 2011d, Cowlitz GIS 2011b and Metro 2011b. LEGEND Recreation Type Greenway Park Dispersed Recreational Area...

  4. EIS-0483: Estes to Flatiron Substation Transmission Lines Rebuild Project,

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based|DepartmentStatement |to ConductLarimer County, Colorado | Department of

  5. Grizzly Substation Fiber Optics : Environmental Assessment.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1998-02-01

    This notice announces BPA`s decision to construct, operate, and maintain the Grizzly Substation Fiber Optic Project (Project). This Project is part of a continuing effort by BPA to complete a regionwide upgrade of its existing telecommunications system. The US Forest Service and BPA jointly prepared the Grizzly Substation Fiber Optic Project Environmental Assessment (EA) (DOE/EA-1241) evaluating the potential environmental impacts of the Proposed Action, the Underground Installation Alternative, and the No Action Alternative. Based on the analysis in the EA, the US Forest Service and BPA have determined that the Proposed Action is not a major Federal action significantly affecting the quality of the human environment, within the meaning of the National Environmental Policy Act (NEPA) of 1969. Therefore, the preparation of an Environmental Impact Statement (EIS) is not required and BPA is issuing this FONSI. The US Forest Service has separately issued a FONSI and Decision Notice authorizing BPA to construct, operate, and maintain the Project within the Crooked River National Grassland (Grassland).

  6. EIS-0451: Hooper Springs Transmission Project, Caribou County, Idaho

    Broader source: Energy.gov [DOE]

    DOE’s Bonneville Power Administration (BPA) prepared an EIS that evaluates the potential environmental impacts of a proposed new 115-kilovolt (kV) transmission line from BPA's proposed Hooper Springs Substation near Soda Springs, Idaho, to either an existing Lower Valley Energy (LVE) substation or a proposed BPA connection with LVE's existing transmission system in northeastern Caribou County. Additional information is available at http://efw.bpa.gov/environmental_services/Document_Library/HooperSprings/.

  7. APS team works smarter, cuts substation construction costs by 36%

    SciTech Connect (OSTI)

    Not Available

    1993-05-01

    An aggressive, cost-cutting, team of T D employees at Arizona Public Service Co (APS) is building a new distribution substation in Phoenix for less than half the original cost that APS planners had calculated for the project's land, labor and materials. Scheduled for service in June of this year, APS analysts had originally projected land, labor and materials costs for the 20-MVA Bell substation at nearly $1.7-million-not including major equipment such as transformers, circuit breakers, and switches. However, after studying the project, an empowered APS crew was able to slash 36% off the original estimate-more than $610,000. What's more, APS spokesmen say that its new approach to substation construction and design has given its engineers and construction crews a laundry list of additional ideas to try out on future substation ventures. 4 figs., 1 tab.

  8. National SCADA Test Bed Substation Automation Evaluation Report

    SciTech Connect (OSTI)

    Kenneth Barnes; Briam Johnson

    2009-10-01

    Increased awareness of the potential for cyber attack has recently resulted in improved cyber security practices associated with the electrical power grid. However, the level of practical understanding and deployment of cyber security practices has not been evenly applied across all business sectors. Much of the focus has been centered on information technology business centers and control rooms. This report explores the current level of substation automation, communication, and cyber security protection deployed in electrical substations throughout existing utilities in the United States. This report documents the evaluation of substation automation implementation and associated vulnerabilities. This evaluation used research conducted by Newton-Evans Research Company for some of its observations and results. The Newton Evans Report aided in the determination of what is the state of substation automation in North American electric utilities. Idaho National Laboratory cyber security experts aided in the determination of what cyber vulnerabilities may pose a threat to electrical substations. This report includes cyber vulnerabilities as well as recommended mitigations. It also describes specific cyber issues found in typical substation automation configurations within the electric utility industry. The evaluation report was performed over a 5-month period starting in October 2008

  9. Integrated substation looks like one RTU to dispatchers

    SciTech Connect (OSTI)

    Koch, W.

    1995-12-01

    Traditionally, supervisory control and data acquisition systems (Scada) use a master/slave arrangement. The master Scada computer polls individual circuit devices for information, or the devices may report (by exception) to the computer. The substation engineering department of Portland General Electric Co (PCE) is now pioneering a new arrangement in which all devices in a substation communicate with each other and a local computer over a data bus. A single communications line connects the Scada master to the same bus for control and/or monitoring. The new approach is known as a substation integration system (SIS). Thus, for a lower initial cost, substation integration: eliminates the need for redundant equipment - such as panel meters, annunciators, transducers, sequence-of-event recorders, auxiliary tripping relays. Scada RTU, control, and transfer switches; reduces control house size by 25% by reducing wiring and using panel space more efficiently; provides a standardized user interface for easy data access, both locally and remotely; is flexible and expandable because of its modularity and use of non-proprietary hardware and software; improves operability, maintainability and reliability through immediate access to key data; and, reduces overall life-cycle costs by reducing travel and outage time through remote access to substation information. 5 figs.

  10. EIS-0008-S: Supplement, Dickey-Lincoln School Lakes Transmission Project, Maine, New Hampshire, and Vermont

    Broader source: Energy.gov [DOE]

    The Bonneville Power Administration developed this SEIS to evaluate the environmental impacts of construction of a steel double-circuit 345-kilovolt transmission line from Moore Substation near Littleton, New Hampshire, to Comerford Substation near Monroe, New Hampshire and a 345-kilovolt wood pole transmission line from Comerford Substation to Webster Substation near Franklin, New Hampshire, as part of the Dickey-Lincoln School Lakes Transmission Project. The Final SEIS consists entirely of Section 9 (Consultation and Coordination), which incorporates public and agency comments on the Draft SEIS and responses to those comments, as well as all necessary errata and addenda to the Draft SEIS. This SEIS is a supplement to DOE/EIS-008, Dickey-Lincoln School Lakes Transmission Project.

  11. Design Considerations for a Large-Scale Wireless Sensor Network for Substation Monitoring

    E-Print Network [OSTI]

    Nasipuri, Asis

    effective monitoring applications for the substation using low-cost wireless sensor nodes that can sustainDesign Considerations for a Large-Scale Wireless Sensor Network for Substation Monitoring Asis University City Blvd. Charlotte, NC 28223 Luke Van der Zel and Bienvenido Rodriguez Substations Group EPRI

  12. The Substation of the Future: A Feasibility Study

    E-Print Network [OSTI]

    Research Center Empowering Minds to Engineer the Future Electric Energy System #12;Substation of the Future on challenges facing the electric power industry and educating the next generation of power engineers. More Study" We express our appreciation for the support provided by PSERC's industrial members

  13. Techniques for Securing Substation Automation Systems David Guidry1

    E-Print Network [OSTI]

    Burmester, Mike

    that such systems are properly secured. Most critical infrastructures such as the electricity grid can be modeled be modeled as cyber-physical systems whose cyber components control the underlying physical components so propose techniques for resilient substation automation of power utility systems with security based

  14. Management and Control for Optimal Performance of the Heating Substation 

    E-Print Network [OSTI]

    Yang, J.

    2006-01-01

    With the development of the scale of central heating, a higher managing level is needed for the heating substation. How to economize the more energy is the first factor that managers need to consider while ensuring the comfort of the heating...

  15. EIS-0124: Conrad-Shelby Transmission Line Project, Montana

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy's Western Area Power Administration developed this statement to assess the environmental impact of adding a 230 kV transmission line between Conrad and Shelby, Montana and a new substation near Shelby to update the stressed electrical transmission system.

  16. Abstract --Under a context of transmission open access, a methodology to define a common transmission trunk system

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    is defined as a unique and common system constituted by electrical lines and substations access. I INTRODUCTION Transmission is the activity dedicated to transport power from differentAbstract -- Under a context of transmission open access, a methodology to define a common

  17. Substation based data interpretation techniques for improved power system management

    SciTech Connect (OSTI)

    Booth, C.; McDonald, J.R. [Univ. of Strathclyde, Glasgow (United Kingdom). Centre for Electrical Power Engineering] [Univ. of Strathclyde, Glasgow (United Kingdom). Centre for Electrical Power Engineering; Laycock, W.J.

    1997-04-01

    There is now considerable pressure on electric utilities to operate their systems in the most efficient manner possible and to provide increased quality of service to customers. This pressure, coupled with the decreasing availability of reserve margins dictates that there is a requirement for comprehensive system operation support through, among other things, the provision of quality information relating to the behavior of the primary and secondary systems. This paper will show how the data available within modern substation control and management systems can be exploited in a cost-effective manner, through the implementation of advanced substation functions in an open systems environment. Certain functions which are presently carried out at the control center could be distributed (or partially distributed) to the substation. These functions may provide the utility staff with quality information, which can in turn be used to satisfy the objectives of increasing quality and security of supply, in addition to optimizing the utility`s information, maintenance and asset management functions.

  18. An Integrative Approach to Reliability Analysis of an IEC 61850 Digital Substation 

    E-Print Network [OSTI]

    Zhang, Yan 1988-

    2012-11-28

    the failures at the bay level translate to the substation level, first we describe the Failure Mode and Effect Analysis (FMEA). Subsequently we will describe the reliability model at the substation level using the results of this FMEA. 4.1 Signal Flow... Effects in HV Transformer Bay 4.3 Integration at the Substation Level Now we will use the results of the FMEA to analyze the impact at the substation level. Since IEC 61850 based SAS combines the modern communication and traditional physical...

  19. 351 Substation Demolition -- B Roll | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-InspiredAtmosphericdevicesPPONeApril351 Substation Demolition -- B Roll 351

  20. Critical Path Method (CPM) Scheduling, Basic Engineering, and Project Approach for Typical Substation Engineering-Procurement-Construction (EPC) Project

    E-Print Network [OSTI]

    Jamir, Dewan R.

    2006-05-19

    design criteria, substation project approach and defines the Client’s, subcontractor’s and Burns & McDonnell’s responsibilities. Burns & McDonnell Engineering specializes and acts as Prime Contractor in the EPC of electrical substations...

  1. Risk Analysis and Probabilistic Survivability Assessment (RAPSA): An Assessment Approach for Power Substation Hardening1

    E-Print Network [OSTI]

    Krings, Axel W.

    Substation Hardening1 Carol Taylor, Axel Krings and Jim Alves-Foss Computer Science Department University is currently being developed for power industry cyber security assessment and hardening. A substation example is presented, with hypothetical risks and costs from several attack scenarios. Our technique features self

  2. New Solutions for Substation Sensing, Signal Processing and Decision Making M. Kezunovic, Fellow IEEE

    E-Print Network [OSTI]

    New Solutions for Substation Sensing, Signal Processing and Decision Making M. Kezunovic, Fellow describes a new solution for integrating substation sensing, signal processing and decision making for more multiplexed network, distributed signal processing, and neural network based decision making are discussed

  3. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    line cost and substation costs. The resulting broad range inthe cost of all associated equipment such as substations,

  4. EIS-0090: Fort Peck-Havre Transmission Line Project, Montana

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy’s Western Area Power Administration prepared this statement to assess the potential environmental and socioeconomic implications of its proposed action to construct and operate a 230kV transmission line from Fort Peck to Havre, Montana, with three intermediate interconnecting substations.

  5. EIS-0114: Fall River/Lower Valley Transmission System Reinforcement

    Broader source: Energy.gov [DOE]

    The Bonneville Power Administration developed this EIS to explore reinforcing the electrical transmission system in southeastern Idaho by adding a 161-kilovolt partly single- and double-circuit line from the Goshen to Drummond Substations in order to maintain reliable electric service in the area.

  6. EIS-0478: Antelope Valley Station to Neset Transmission Project, Mercer, Dunn, Billings, Williams, McKenzie, and Mountrail Counties, North Dakota

    Broader source: Energy.gov [DOE]

    USDA Rural Utilities Service prepared an EIS that evaluates the potential environmental impacts of constructing, operating, and maintaining a proposed transmission line and associated facilities in western North Dakota. DOE’s Western Area Power Administration, a cooperating agency, would modify its existing Williston Substation to allow a connection of the proposed new transmission line to Western’s transmission system.

  7. Electrical substation service-area estimation using Cellular Automata: An initial report

    SciTech Connect (OSTI)

    Fenwick, J.W.; Dowell, L.J.

    1998-07-01

    The service areas for electric power substations can be estimated using a Cellular Automata (CA) model. The CA model is a discrete, iterative process whereby substations acquire service area by claiming neighboring cells. The service area expands from a substation until a neighboring substation service area is met or the substation`s total capacity or other constraints are reached. The CA-model output is dependent on the rule set that defines cell interactions. The rule set is based on a hierarchy of quantitative metrics that represent real-world factors such as land use and population density. Together, the metrics determine the rate of cell acquisition and the upper bound for service area size. Assessing the CA-model accuracy requires comparisons to actual service areas. These actual service areas can be extracted from distribution maps. Quantitative assessment of the CA-model accuracy can be accomplished by a number of methods. Some are as simple as finding the percentage of cells predicted correctly, while others assess a penalty based on the distance from an incorrectly predicted cell to its correct service area. This is an initial report of a work in progress.

  8. EIS-0505: Vantage to Pomona Heights 230 kV Transmission Line Project; Yakima, Grant, Benton, and Kittitas Counties, Washington

    Broader source: Energy.gov [DOE]

    The Bureau of Land Management is preparing, with DOE’s Bonneville Power Administration (BPA) as a cooperating agency, an EIS that evaluates the potential environmental impacts of a proposal to construct a 230-kV transmission line in Washington State. BPA’s proposed action is to interconnect the proposed transmission line to an existing BPA substation.

  9. On the simulation of the energy transmission in the forbidden band-gap of a spatially discrete double sine-Gordon system

    E-Print Network [OSTI]

    J. E. Macías-Díaz

    2011-12-02

    In this work, we present a numerical method to consistently approximate solutions of a spatially discrete, double sine-Gordon chain which considers the presence of external damping. In addition to the finite-difference scheme employed to approximate the solution of the difference-differential equations of the model under investigation, our method provides positivity-preserving schemes to approximate the local and the total energy of the system, in such way that the discrete rate of change of the total energy with respect to time provides a consistent approximation of the corresponding continuous rate of change. Simulations are performed, first of all, to assess the validity of the computational technique against known qualitative solutions of coupled sine-Gordon and coupled double sine-Gordon chains. Secondly, the method is used in the investigation of the phenomenon of nonlinear transmission of energy in double sine-Gordon systems; the qualitative effects of the damping coefficient on the occurrence of the nonlinear process of supratransmission are briefly determined in this work, too.

  10. FINAL PROJECT REPORT LOAD MODELING TRANSMISSION RESEARCH

    E-Print Network [OSTI]

    Lesieutre, Bernard

    2013-01-01

    communications in the substation Example Costs: Instrument115-kV “B” Substations SVC Unit Cost ($ Millions) Total115-kV “B” Substations SVC Unit Cost ($ Millions) Total SVC

  11. A BOUNDARY ELEMENT FORMULATION FOR THE COMPUTER DESIGN OF SUBSTATION I. Colominas, F. Navarrina, and M. Casteleiro

    E-Print Network [OSTI]

    Colominas, Ignasi

    A BOUNDARY ELEMENT FORMULATION FOR THE COMPUTER DESIGN OF SUBSTATION GROUNDING I. Colominas, F approach for the numerical com- putation of substation grounding systems is presented. In this general in the BEM formulation to reduce computational cost. While linear and parabolic leakage current elements

  12. EIS-0400: EPA Notice of Availability of Final Environmental Impact...

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

    Final Environmental Impact Statement EIS-0400: EPA Notice of Availability of Final Environmental Impact Statement Granby Pumping Plant Switchyard-Windy Gap Substation Transmission...

  13. Substations reliability-centered maintenance and predictive maintenance - a strategic partnership

    SciTech Connect (OSTI)

    Colsher, R.J. [Electric Power Research Institute, Eddystone, PA (United States); Abbott, P.D.; Matusheski, R.L. [EPRI & MD Center, Eddystone, PA (United States); Smith, S.B. [ERIN Engineering & Research, Walnut Creek, CA (United States)

    1996-08-01

    A maintenance optimization study for substation components can be most effective when Reliability Centered Maintenance (RCM) Analysis is combined with a Predictive Maintenance (PDM) Assessment. If the two processes are performed concurrently, the benefit-to-cost ratios for each is increased. Also, the cost of implementing RCM recommendations for condition monitoring can be minimized, while maximizing their impact at the same time. This paper presents the essential elements of both the RCM and PDM processes, and describes how they work together in a substation environment as a comprehensive maintenance assessment tool. Descriptions of recent experiences are also included.

  14. EIS-0107: Mead-Phoenix +500-kV Direct Current Transmission Line

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy’s Western Area Power Administration (WAPA) prepared this statement to analyze the potential environmental and socioeconomic impacts arising from WAPA and regional project sponsors’ proposal to construct a 500 kilovolt (kV) alternating current (AC) transmission line with the capability to be upgraded later to 500kV direct current (DC), connecting the Westwing Substation, located north of Phoenix, Arizona, with a new McCullough II Substation, located approximately 14 miles west of Boulder City, Nevada. This statement modifies a previously prepared federal statement from which the participants' election to proceed had not occurred at the time this statement was prepared.

  15. EA-2013: Herbicide Application at Three Substations; Imperial County (California), Maricopa and Yuma Counties (Arizona)

    Broader source: Energy.gov [DOE]

    Western Area Power Administration (Western) and the Bureau of Land Management (BLM) are jointly preparing an EA that analyzes the potential environmental impacts of Western’s proposed use of selected herbicides for the treatment of undesirable vegetation within three existing substations on lands administered by BLM.

  16. Constraint Based Planning with Composable Substate Peter Gregory and Derek Long and Maria Fox

    E-Print Network [OSTI]

    Hammerton, James

    Constraint Based Planning with Composable Substate Graphs Peter Gregory and Derek Long and Maria a constraint-based model for cost-optimal plan- ning that uses global constraints to improve the inference to such problems combine search, inference and relaxation. In cost optimal planning, search and relaxation tech

  17. Puget Sound Area Electric Reliability Plan : Supplemental Environmental Analysis, Schultz Substation.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1992-04-01

    This document describes the purpose, function, and the environmental consequences of the proposed Schultz substation near Ellensburg, Washington. The affected environment is described in detail, including aerial survey photographs. The impacts on vegetation, fish and wildlife, soils, and water resources are described. (GHH)

  18. Environmental Assessment of the Gering-Stegall 115-kV Transmission Line Consolidation Project, Scotts Bluff County, Nebraska

    SciTech Connect (OSTI)

    NONE

    1995-05-01

    The Department of Energy (DOE), Western Area Power Administration (Western) proposes to consolidate segments of two transmission lines near the Gering Substation in Gering, Nebraska. The transmission lines are both located in Scotts Bluff County, Nebraska. The transmission lines are both located in Scotts Bluff County, Nebraska, within the city of Gering. Presently, there are three parallel 115-kilovolt (kV) transmission lines on separate rights-of-way (ROW) that terminate at the Gering Substation. The project would include dismantling the Archer-Gering wood-pole transmission line and rebuilding the remaining two lines on single-pole steel double circuit structures. The project would consolidate the Gering-Stegall North and Gering-Stegall South 115-kV transmission lines on to one ROW for a 1.33-mile segment between the Gering Substation and a point west of the Gering Landfill. All existing wood-pole H-frame structures would be removed, and the Gering-Stegall North and South ROWs abandoned. Western is responsible for the design, construction, operation, and maintenance of the line. Western prepared an environmental assessment (EA) that analyzed the potential environmental impacts of the proposed construction, operation, and maintenance of the 115-kV transmission line consolidation. Based on the analyses in the EA, the DOE finds that the proposed action is not a major Federal action significantly affecting the quality of the human environment, within the meaning of the National Environmental Policy Act of 1969 (NEPA).

  19. BPA, Transmission, I-5 Corridor Reinforcement Project, August...

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

    near Castle Rock, Cowlitz County, Washington, to a new substation near BPA's Troutdale Substation, Troutdale, Multnomah County, Oregon (see enclosed map). Background BPA is a...

  20. Adjudication of a Contract for the Construction of a Building for the Electricity Sub-Station of the 300 GeV Accelerator

    E-Print Network [OSTI]

    1973-01-01

    Adjudication of a Contract for the Construction of a Building for the Electricity Sub-Station of the 300 GeV Accelerator

  1. Building Work: Allocation of Contract for the Electric Sub-Station 18 kV, NPA Building, Technological Workshop and Lab. 13

    E-Print Network [OSTI]

    1963-01-01

    Building Work: Allocation of Contract for the Electric Sub-Station 18 kV, NPA Building, Technological Workshop and Lab. 13

  2. Average transmission probability of a random stack

    E-Print Network [OSTI]

    Yin Lu; Christian Miniatura; Berthold-Georg Englert

    2009-07-31

    The transmission through a stack of identical slabs that are separated by gaps with random widths is usually treated by calculating the average of the logarithm of the transmission probability. We show how to calculate the average of the transmission probability itself with the aid of a recurrence relation and derive analytical upper and lower bounds. The upper bound, when used as an approximation for the transmission probability, is unreasonably good and we conjecture that it is asymptotically exact.

  3. EIS-0379- Rebuild of the Libby (FEC) to Troy Section of BPA’s 115-kilovolt Transmission Line in Libby, Lincoln County, Montana

    Broader source: Energy.gov [DOE]

    This Environmental Impact Statement (EIS) assesses the potential environmental impacts that would result from a proposed Department of Energy (DOE) action on the proposed rebuilding, operation, and maintenance of a 17-mile-long portion of BPA’s Libby to Bonners Ferry 115-kilovolt (kV) Transmission Line in Lincoln County, Montana. The portion to be rebuilt would start at Flathead Electric Cooperative’s (FEC) Libby Substation, in the town of Libby, Montana, and proceed west along an existing right-of-way for about 17 miles, terminating at BPA’s Troy Substation just east of the town of Troy, Montana.

  4. EA-1981: Bonneville-Hood River Transmission Line Rebuild, Multnomah and Hood River Counties, Oregon

    Office of Energy Efficiency and Renewable Energy (EERE)

    Bonneville Power Administration (BPA) is preparing an EA to assess potential environmental impacts of a proposal to rebuild its 24-mile long, 115 kilovolt Bonneville-Hood River transmission line. The existing line runs between the Bonneville Powerhouse at Bonneville Dam in Multnomah County, Oregon, and BPA's existing Hood River Substation in Hood River County, Oregon. The project would include replacing structures and conductor wires, improving access roads, and constructing new access roads or trails where needed.

  5. Synthesis of electromagnetic modes in photonic band gap fibers

    E-Print Network [OSTI]

    Hu, Qichao

    2007-01-01

    In this paper, we report on the successful synthesis of three individual modes, HE11, TEo0, and TE02 for transmission in photonic band gap fibers at near infrared wavelengths. We measure the propagation losses of the HE11 ...

  6. EIS-0116-S1: Final Supplemental Environmental Impact Statement for the Blue River-Gore Pass Portion of the Hayden-Blue River Transmission Line Project, Grand and Summit Counties, Colorado

    Broader source: Energy.gov [DOE]

    This supplemental environmental impact statement by the Western Area Power Administration assesses the environmental effects of constructing, operating, and maintaining about 30 miles of 230/345-kV transmission line between the existing Gore Pass Substation northwest of Kremmling, Colorado, and a proposed new substation (not part of this action) near the Ute Pass Road. Alternatives assessed included routing and design alternatives plus the alternatives addressed in the Hayden-Blue River Final EIS, issued by the Rural Electrification Administration in July 1982 and adopted by DOE in June 1985 (see DOE/EIS-0116).

  7. Exploration of Resource and Transmission Expansion Decisions in the Western Renewable Energy Zone Initiative

    E-Print Network [OSTI]

    Mills, Andrew D

    2011-01-01

    substation, and are derived from a simple levelized-cost-substation, the capacity factor of the renewable resource, and financing parameters—including the capital structure, cost

  8. Holbrook Substation Superconductor Cable System, Long Island, New York Final Report

    SciTech Connect (OSTI)

    Maguire, James; McNamara, Joseph

    2010-06-25

    The LIPA Superconductor project broke ground on July 4, 2006, was first energized on April 22, 2008 (Earth Day) and was commissioned on June 25, 2008. Since commissioning, up until early March, 2009, there were numerous refrigeration events that impacted steady state operations. This led to the review of the alarms that were being generated and a rewrite of the program logic in order to decrease the hypersensitivity surrounding these alarms. The high temperature superconductor (HTS) cable was energized on March 5, 2009 and ran uninterrupted until a human error during a refrigeration system switchover knocked the cable out of the grid in early February 2010. The HTS cable was in the grid uninterrupted from March 5, 2009 to February 4, 2010. Although there have been refrigeration events (propagated mainly by voltage sags/surges) during this period, the system was able to automatically switch over from the primary to the backup refrigeration system without issue as required during this period. On February 4, 2010, when switching from the backup over to the primary refrigeration system, two rather than one liquid nitrogen pumps were started inadvertently by a human error (communication) causing an overpressure in the cable cooling line. This in turn activated the pressure relief valve located in the grounding substation. The cable was automatically taken out of the grid without any damage to the components or system as a result of signals sent from the AMSC control cabinet to the LIPA substation. The cable was switched back into the grid again on March 16, 2010 without incident and has been operational since that time. Since switching from the backup to the primary is not an automatic process, a recent improvement was added to the refrigeration operating system to allow remote commands to return the system from backup to primary cooling. This improvement makes the switching procedure quicker since travel to the site to perform this operation is no longer necessary and safer since it is now a programmed procedure versus the former written procedure that was still subject to human variation in the process.

  9. Transmission Services

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

    Transmission Services BPA Clarifications on the DSO216 1 Document updated on 2242015 at 3:29:25 PM B O N N E V I L L E P O W E R A D M I N I S T R A T I O N BPA Clarifications on...

  10. Magnetically insulated transmission line oscillator

    DOE Patents [OSTI]

    Bacon, L.D.; Ballard, W.P.; Clark, M.C.; Marder, B.M.

    1987-05-19

    A magnetically insulated transmission line oscillator employs self-generated magnetic fields to generate microwave energy. An anode of the oscillator includes slow-wave structures which are formed of a plurality of thin conductive vanes defining cavities therebetween, and a gap is formed between the anode and a cathode of the oscillator. In response to a pulsed voltage applied to the anode and cathode, self-generated magnetic fields are produced in a cross-field orientation with respect to the orientation of the electric field between the anode and the cathode. The cross-field magnetic fields insulate the flow of electrons in the gap and confine the flow of electrons within the gap. 11 figs.

  11. Magnetically insulated transmission line oscillator

    DOE Patents [OSTI]

    Bacon, Larry D. (Albuquerque, NM); Ballard, William P. (Albuquerque, NM); Clark, M. Collins (Albuquerque, NM); Marder, Barry M. (Albuquerque, NM)

    1988-01-01

    A magnetically insulated transmission line oscillator employs self-generated magnetic fields to generate microwave energy. An anode of the oscillator includes slow-wave structures which are formed of a plurality of thin conductive vanes defining cavities therebetween, and a gap is formed between the anode and a cathode of the oscillator. In response to a pulsed voltage applied to the anode and cathode, self-generated magnetic fields arfe produced in a cross-field orientation with respect to the orientation of the electric field between the anode and the cathode. The cross-field magnetic fields insulate the flow of electrons in the gap and confine the flow of electrons within the gap.

  12. Highly dispersive photonic band-gap-edge optofluidic biosensors

    E-Print Network [OSTI]

    Xiao, S; Xiao, Sanshui; Mortensen, Niels Asger

    2006-01-01

    Highly dispersive photonic band-gap-edge optofluidic biosensors are studied theoretically. We demonstrate that these structures are strongly sensitive to the refractive index of the liquid, which is used to tune dispersion of the photonic crystal. The upper frequency band-gap edge shifts about 1.8 nm for dn=0.002, which is quite sensitive. Results from transmission spectra agree well with those obtained from the band structure theory.

  13. Generation gaps in engineering?

    E-Print Network [OSTI]

    Kim, David J. (David Jinwoo)

    2008-01-01

    There is much enthusiastic debate on the topic of generation gaps in the workplace today; what the generational differences are, how to address the apparent challenges, and if the generations themselves are even real. ...

  14. Fiber optic gap gauge

    DOE Patents [OSTI]

    Wood, Billy E. (Livermore, CA); Groves, Scott E. (Brentwood, CA); Larsen, Greg J. (Brentwood, CA); Sanchez, Roberto J. (Pleasanton, CA)

    2006-11-14

    A lightweight, small size, high sensitivity gauge for indirectly measuring displacement or absolute gap width by measuring axial strain in an orthogonal direction to the displacement/gap width. The gap gauge includes a preferably titanium base having a central tension bar with springs connecting opposite ends of the tension bar to a pair of end connector bars, and an elongated bow spring connected to the end connector bars with a middle section bowed away from the base to define a gap. The bow spring is capable of producing an axial strain in the base proportional to a displacement of the middle section in a direction orthogonal to the base. And a strain sensor, such as a Fabry-Perot interferometer strain sensor, is connected to measure the axial strain in the base, so that the displacement of the middle section may be indirectly determined from the measurement of the axial strain in the base.

  15. Inception report and Gap analysis

    E-Print Network [OSTI]

    Inception report and Gap analysis Boiler inspection Riga, June 2004 #12;Inception report and gap analysis ­ boiler inspection Table of Content 1 INTRODUCTION ................................................................................................................................. 3 2 BOILER INSTALLATIONS ­ GAP ANALYSIS

  16. Coiled transmission line pulse generators

    DOE Patents [OSTI]

    McDonald, Kenneth Fox (Columbia, MO)

    2010-11-09

    Methods and apparatus are provided for fabricating and constructing solid dielectric "Coiled Transmission Line" pulse generators in radial or axial coiled geometries. The pour and cure fabrication process enables a wide variety of geometries and form factors. The volume between the conductors is filled with liquid blends of monomers, polymers, oligomers, and/or cross-linkers and dielectric powders; and then cured to form high field strength and high dielectric constant solid dielectric transmission lines that intrinsically produce ideal rectangular high voltage pulses when charged and switched into matched impedance loads. Voltage levels may be increased by Marx and/or Blumlein principles incorporating spark gap or, preferentially, solid state switches (such as optically triggered thyristors) which produce reliable, high repetition rate operation. Moreover, these Marxed pulse generators can be DC charged and do not require additional pulse forming circuitry, pulse forming lines, transformers, or an a high voltage spark gap output switch. The apparatus accommodates a wide range of voltages, impedances, pulse durations, pulse repetition rates, and duty cycles. The resulting mobile or flight platform friendly cylindrical geometric configuration is much more compact, light-weight, and robust than conventional linear geometries, or pulse generators constructed from conventional components. Installing additional circuitry may accommodate optional pulse shape improvements. The Coiled Transmission Lines can also be connected in parallel to decrease the impedance, or in series to increase the pulse length.

  17. Sculpting Nanoelectrodes with a Transmission Electron Beam for

    E-Print Network [OSTI]

    Dekker, Cees

    such electrodes showed the expected single-electron tunneling behavior, with a Coulomb gap corresponding, is that visual inspection of the trapped particle with a high-resolution transmission electron microscope (HRTEMSculpting Nanoelectrodes with a Transmission Electron Beam for Electrical and Geometrical

  18. The integration of renewable energy sources into electric power transmission systems

    SciTech Connect (OSTI)

    Barnes, P.R.; Dykas, W.P.; Kirby, B.J.; Purucker, S.L. [Oak Ridge National Lab., TN (United States); Lawler, J.S. [Univ. of Tennessee, Knoxville, TN (United States)

    1995-07-01

    Renewable energy technologies such as photovoltaics, solar thermal power plants, and wind turbines are nonconventional, environmentally attractive sources of energy that can be considered for electric power generation. Many of the areas with abundant renewable energy resources (very sunny or windy areas) are far removed from major load centers. Although electrical power can be transmitted over long distances of many hundreds of miles through high-voltage transmission lines, power transmission systems often operate near their limits with little excess capacity for new generation sources. This study assesses the available capacity of transmission systems in designated abundant renewable energy resource regions and identifies the requirements for high-capacity plant integration in selected cases. In general, about 50 MW of power from renewable sources can be integrated into existing transmission systems to supply local loads without transmission upgrades beyond the construction of a substation to connect to the grid. Except in the Southwest, significant investment to strengthen transmission systems will be required to support the development of high-capacity renewable sources of 1000 MW or greater in areas remote from major load centers. Cost estimates for new transmission facilities to integrate and dispatch some of these high-capacity renewable sources ranged from several million dollars to approximately one billion dollars, with the latter figure an increase in total investment of 35%, assuming that the renewable source is the only user of the transmission facility.

  19. Uncertainties in Gapped Graphene

    E-Print Network [OSTI]

    Eylee Jung; Kwang S. Kim; DaeKil Park

    2012-03-20

    Motivated by graphene-based quantum computer we examine the time-dependence of the position-momentum and position-velocity uncertainties in the monolayer gapped graphene. The effect of the energy gap to the uncertainties is shown to appear via the Compton-like wavelength $\\lambda_c$. The uncertainties in the graphene are mainly contributed by two phenomena, spreading and zitterbewegung. While the former determines the uncertainties in the long-range of time, the latter gives the highly oscillation to the uncertainties in the short-range of time. The uncertainties in the graphene are compared with the corresponding values for the usual free Hamiltonian $\\hat{H}_{free} = (p_1^2 + p_2^2) / 2 M$. It is shown that the uncertainties can be under control within the quantum mechanical law if one can choose the gap parameter $\\lambda_c$ freely.

  20. Joint HVAC transmission EMF environmental study

    SciTech Connect (OSTI)

    Stormshak, F.; Thompson, J. (Oregon State Univ., Corvallis, OR (United States))

    1992-05-01

    This document describes the rationale, procedures, and results of a carefully controlled study conducted to establish whether chronic exposure of female (ewe) Suffolk lambs to the environment of a 500-kV 60-Hz transmission line would affect various characteristics of growth, endocrine function, and reproductive development. This experiment used identical housing and management schemes for control and line-exposed ewes, thus minimizing these factors as contributors to between-group experimental error. Further, throughout the 10-month duration of this study, changes in electric and magnetic fields, audible noise, and weather conditions were monitored continuously by a computerized system. Such measurements provided the opportunity to identify any relationship between environmental factors and biological responses. Because of reports in the literature that electric and magnetic fields alter concentrations of melatonin in laboratory animals, the primary objective of this study was to ascertain whether a similar effect occurs in lambs exposed to a 500-kV a-c line in a natural setting. In addition, onset of puberty, changes in body weight, wool growth, and behavior were monitored. To determine whether the environment of a 500-kV line caused stress in the study animals, serum levels of cortisol were measured. The study was conducted at Bonneville Power Administration's Ostrander Substation near Estacada, Oregon.

  1. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    TRANSMISSION AND DISTRIBUTION POWER SUBSTATIONS CAPITALIZED COST CALCULATION METHODS PLANNING COST ESTIMATION MATHEMATICAL MODELS The displacement or deferral of substation...

  2. GAP TESTS; COMPARISON BETWEEN UN GAP TEST AND CARD GAP TEST

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    98-36 GAP TESTS; COMPARISON BETWEEN UN GAP TEST AND CARD GAP TEST by R. BRANKA and C. MICHOT, FRANCE (tel.: 33 3 44 55 65 19, fax: 33 3 44 55 65 10) ABSTRACT: UN gap test, type 1(a) or 2(a), is the recommended test in the acceptance procedure for transport of explosives in class 1. Up to the revision

  3. Survey of Transmission Cost Allocation Methodologies for Regional Transmission Organizations

    SciTech Connect (OSTI)

    Fink, S.; Porter, K.; Mudd, C.; Rogers, J.

    2011-02-01

    The report presents transmission cost allocation methodologies for reliability transmission projects, generation interconnection, and economic transmission projects for all Regional Transmission Organizations.

  4. Introduction Synaptic transmission

    E-Print Network [OSTI]

    Stoltz, Brian M.

    Introduction ·Synaptic transmission throughout the nervous system is predominantly chemical ·At Channels #12;Neuroreceptors & Synaptic Transmission Synapse Neurotransmitter Receptor/Ion Channel Ion Flow

  5. Merchant transmission investment

    E-Print Network [OSTI]

    Joskow, Paul L.

    2003-01-01

    We examine the performance attributes of a merchant transmission investment framework that relies on "market driven" transmission investment to provide the infrastructure to support competitive wholesale markets for ...

  6. Proposal for the award of a contract for the supply and laying of false floors in the rectifier buildings and the electricity sub-stations serving five LEP access points

    E-Print Network [OSTI]

    1986-01-01

    Proposal for the award of a contract for the supply and laying of false floors in the rectifier buildings and the electricity sub-stations serving five LEP access points

  7. BPA transmission, I-5 corridor reinforcement project, updated...

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

    It does not represent any legal information or boundaries. Source: BPA Regional GIS Database, 2009. Facilities Proposed New Substation sde.SDE.BPAPlannedTlines...

  8. BPA, proposed I-5 Corridor Reinforcement transmission project...

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

    It does not represent any legal information or boundaries. Source: BPA Regional GIS Database, 2009. Facilities Proposed New Substation Proposed Route Segments BPA...

  9. Gapped Domain Walls, Gapped Boundaries and Topological Degeneracy

    E-Print Network [OSTI]

    Tian Lan; Juven Wang; Xiao-Gang Wen

    2014-11-26

    Gapped domain walls, as topological line defects between 2+1D topologically ordered states, are examined. We provide simple criteria to determine the existence of gapped domain walls, which apply to both Abelian and non-Abelian topological orders. Our criteria also determine which 2+1D topological orders must have gapless edge modes, namely which 1+1D global gravitational anomalies ensure gaplessness. Furthermore, we introduce a new mathematical object, the tunneling matrix $\\mathcal W$, whose entries are the fusion-space dimensions $\\mathcal W_{ia}$, to label different types of gapped domain walls. By studying many examples, we find evidence that the tunneling matrices are powerful quantities to classify different types of gapped domain walls. Since a gapped boundary is a gapped domain wall between a bulk topological order and the vacuum, regarded as the trivial topological order, our theory of gapped domain walls inclusively contains the theory of gapped boundaries. In addition, we derive a topological ground state degeneracy formula, applied to arbitrary orientable spatial 2-manifolds with gapped domain walls, including closed 2-manifolds and open 2-manifolds with gapped boundaries.

  10. Type B Accident Investigation of the Serious Personal Injury while Doble Testing at the Western Area Power Administration Hayden Substation, May 19, 1999

    Broader source: Energy.gov [DOE]

    On May 19, 1999, at 10:31 a.m., four Western Area Power Administration (Western) employees were performing Doble testing on a circuit breaker at Hayden Substation in Routt County, Colorado. Three electricians were injured when the high-voltage lead (HVL) of the Doble test set encroached on the minimum approach distance to an energized part outside clearance boundaries, drawing arcing faults.

  11. Domain walls in gapped graphene

    E-Print Network [OSTI]

    Semenoff, G W; Zhou, Fei

    2015-01-01

    The electronic properties of a particular class of domain walls in gapped graphene are investigated. We show that they can support mid-gap states which are localized in the vicinity of the domain wall and propagate along its length. With a finite density of domain walls, these states can alter the electronic properties of gapped graphene significantly. If the mid-gap band is partially filled,the domain wall can behave like a one-dimensional metal embedded in a semi-conductor, and could potentially be used as a single-channel quantum wire.

  12. Domain walls in gapped graphene

    E-Print Network [OSTI]

    G. W. Semenoff; V. Semenoff; Fei Zhou

    2008-05-31

    The electronic properties of a particular class of domain walls in gapped graphene are investigated. We show that they can support mid-gap states which are localized in the vicinity of the domain wall and propagate along its length. With a finite density of domain walls, these states can alter the electronic properties of gapped graphene significantly. If the mid-gap band is partially filled,the domain wall can behave like a one-dimensional metal embedded in a semi-conductor, and could potentially be used as a single-channel quantum wire.

  13. Transmission Commercial Project Integration

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

    Market Generator Interconnection Reform Implementation Network Integration Transmission Service (NT Service) Network Open Season (NOS) PTSA Reform North American Energy...

  14. Transmission through the

    E-Print Network [OSTI]

    Yanikomeroglu, Halim

    Optimum Transmission through the GMAC D. Calabuig, R. Gohary, H. Yanikomero. 1/22 Introduction System model Optimization Algorithm Conclusions Optimum Transmission through the Gaussian Multiple Access Engineering Carleton University Ottawa, Canada July 8, 2013 #12;Optimum Transmission through the GMAC D

  15. Performance Incentives for Transmission

    E-Print Network [OSTI]

    Oren, Shmuel S.

    Performance Incentives for Transmission FERC's Standard Market Design should accommodate a performance-based regulation mechanism that is designed to align the interests of transmission operators to investment, transmission investors would be entitled to the CRRs or CRR auc- tion revenues engendered

  16. Transmission Enhancement Technology Report

    E-Print Network [OSTI]

    a recommendation of the most cost-effective methods and technologies to enhance electricity transmission from a review of methods and technologies with potential to enhance electricity transmission capability-traditional methods and technologies to increase the capacity of the high voltage electric power transmission system

  17. ELECTRICAL SUBSTATION RELIABILITY EVALUATION WITH EMPHASIS ON EVOLVING INTERDEPENDENCE ON COMMUNICATION INFRASTRUCTURE.

    SciTech Connect (OSTI)

    AZARM,M.A.BARI,R.A.MUSICKI,Z.

    2004-01-15

    The objective of this study is to develop a methodology for a probabilistic assessment of the reliability and security of electrical energy distribution networks. This includes consideration of the future grid system, which will rely heavily on the existing digitally based communication infrastructure for monitoring and protection. Another important objective of this study is to provide information and insights from this research to Consolidated Edison Company (Con Edison) that could be useful in the design of the new network segment to be installed in the area of the World Trade Center in lower Manhattan. Our method is microscopic in nature and relies heavily on the specific design of the portion of the grid being analyzed. It extensively models the types of faults that a grid could potentially experience, the response of the grid, and the specific design of the protection schemes. We demonstrate that the existing technology can be extended and applied to the electrical grid and to the supporting communication network. A small subsection of a hypothetical grid based on the existing New York City electrical grid system of Con Edison is used to demonstrate the methods. Sensitivity studies show that in the current design the frequency for the loss of the main station is sensitive to the communication network reliability. The reliability of the communication network could become a more important contributor to the electrical grid reliability as the utilization of the communication network significantly increases in the near future to support ''smart'' transmission and/or distributed generation. The identification of potential failure modes and their likelihood can support decisions on potential modifications to the network including hardware, monitoring instrumentation, and protection systems.

  18. National Electric Transmission Congestion Study Webinars | Department...

    Energy Savers [EERE]

    Services Electricity Policy Coordination and Implementation Transmission Planning National Electric Transmission Congestion Study National Electric Transmission...

  19. Automated manual transmission controller

    DOE Patents [OSTI]

    Lawrie, Robert E. (Whitmore Lake, MI); Reed, Jr., Richard G. (Royal Oak, MI); Bernier, David R. (Rochester Hills, MI)

    1999-12-28

    A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate as an automatic transmission from the perspective of the driver. The engine and the electric machine drive an input shaft which in turn drives an output shaft of the transmission. In addition to driving the transmission, the electric machine regulates the speed of the input shaft in order to synchronize the input shaft during either an upshift or downshift of the transmission by either decreasing or increasing the speed of the input shaft. When decreasing the speed of the input shaft, the electric motor functions as an alternator to produce electrical energy which may be stored by a storage device. Operation of the transmission is controlled by a transmission controller which receives input signals and generates output signals to control shift and clutch motors to effect smooth launch, upshift shifts, and downshifts of the transmission, so that the transmission functions substantially as an automatic transmission from the perspective of the driver, while internally substantially functioning as a manual transmission.

  20. Pneumatic gap sensor and method

    DOE Patents [OSTI]

    Bagdal, Karl T. (Middletown, OH); King, Edward L. (Trenton, OH); Follstaedt, Donald W. (Middletown, OH)

    1992-01-01

    An apparatus and method for monitoring and maintaining a predetermined width in the gap between a casting nozzle and a casting wheel, wherein the gap is monitored by means of at least one pneumatic gap sensor. The pneumatic gap sensor is mounted on the casting nozzle in proximity to the casting surface and is connected by means of a tube to a regulator and a transducer. The regulator provides a flow of gas through a restictor to the pneumatic gap sensor, and the transducer translates the changes in the gas pressure caused by the proximity of the casting wheel to the pneumatic gap sensor outlet into a signal intelligible to a control device. The relative positions of the casting nozzle and casting wheel can thereby be selectively adjusted to continually maintain a predetermined distance between their adjacent surfaces. The apparatus and method enables accurate monitoring of the actual casting gap in a simple and reliable manner resistant to the extreme temperatures and otherwise hostile casting environment.

  1. Pneumatic gap sensor and method

    DOE Patents [OSTI]

    Bagdal, K.T.; King, E.L.; Follstaedt, D.W.

    1992-03-03

    An apparatus and method for monitoring and maintaining a predetermined width in the gap between a casting nozzle and a casting wheel, wherein the gap is monitored by means of at least one pneumatic gap sensor. The pneumatic gap sensor is mounted on the casting nozzle in proximity to the casting surface and is connected by means of a tube to a regulator and a transducer. The regulator provides a flow of gas through a restictor to the pneumatic gap sensor, and the transducer translates the changes in the gas pressure caused by the proximity of the casting wheel to the pneumatic gap sensor outlet into a signal intelligible to a control device. The relative positions of the casting nozzle and casting wheel can thereby be selectively adjusted to continually maintain a predetermined distance between their adjacent surfaces. The apparatus and method enables accurate monitoring of the actual casting gap in a simple and reliable manner resistant to the extreme temperatures and otherwise hostile casting environment. 6 figs.

  2. Optical characterization of gaps in directly bonded Si compound optics using infrared spectroscopy

    E-Print Network [OSTI]

    Gully-Santiago, Michael; White, Victor

    2015-01-01

    Silicon direct bonding offers flexibility in the design and development of Si optics by allowing manufacturers to combine subcomponents with a potentially lossless and mechanically stable interface. The bonding process presents challenges in meeting the requirements for optical performance because air gaps at the Si interface cause large Fresnel reflections. Even small (35 nm) gaps reduce transmission through a direct bonded Si compound optic by 4% at $\\lambda = 1.25 \\; \\mu$m at normal incidence. We describe a bond inspection method that makes use of precision slit spectroscopy to detect and measure gaps as small as 14 nm. Our method compares low finesse Fabry-P\\'{e}rot models to high precision measurements of transmission as a function of wavelength. We demonstrate the validity of the approach by measuring bond gaps of known depths produced by microlithography.

  3. Series Transmission Line Transformer

    DOE Patents [OSTI]

    Buckles, Robert A. (Livermore, CA); Booth, Rex (Livermore, CA); Yen, Boris T. (El Cerrito, CA)

    2004-06-29

    A series transmission line transformer is set forth which includes two or more of impedance matched sets of at least two transmissions lines such as shielded cables, connected in parallel at one end ans series at the other in a cascading fashion. The cables are wound about a magnetic core. The series transmission line transformer (STLT) which can provide for higher impedance ratios and bandwidths, which is scalable, and which is of simpler design and construction.

  4. Transmission and Storage Operations

    Energy Savers [EERE]

    Transmission and Storage Operations Natural Gas Infrastructure R&D and Methane Mitigation Workshop Mary Savalle, PMP, LSSGB Compression Reliability Engineer November 12, 2014...

  5. Collaborative Transmission Technology Roadmap

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

    Addendum to the Collaborative Transmission Technology Roadmap March 2014 Bonneville Power Administration Enhanced PDF Functionality Functionality of the PDF version of this...

  6. Patterns of transmission investment

    E-Print Network [OSTI]

    Joskow, Paul L.

    2005-01-01

    This paper examines a number of issues associated with alternative analytical approaches for evaluating investments in electricity transmission infrastructure and alternative institutional arrangements to govern network ...

  7. Transmission Line Security Monitor

    ScienceCinema (OSTI)

    None

    2013-05-28

    The Transmission Line Security Monitor is a multi-sensor monitor that mounts directly on high-voltage transmission lines to detect, characterize and communicate terrorist activity, human tampering and threatening conditions around support towers. For more information about INL's critical infrastructure protection research, visit http://www.facebook.com/idahonationallaboratory.

  8. Transmission Line Security Monitor

    SciTech Connect (OSTI)

    2011-01-01

    The Transmission Line Security Monitor is a multi-sensor monitor that mounts directly on high-voltage transmission lines to detect, characterize and communicate terrorist activity, human tampering and threatening conditions around support towers. For more information about INL's critical infrastructure protection research, visit http://www.facebook.com/idahonationallaboratory.

  9. Tunable temporal gap based on simultaneous fast and slow light in electro-optic photonic crystals

    E-Print Network [OSTI]

    Li, Guangzhen; Jiang, Haowei; Liu, Yi'an; Liu, Xiao; Chen, Xianfeng

    2015-01-01

    We demonstrated a tunable temporal gap based on simultaneous fast and slow light in electro-optic photonic crystals. The light experiences an anomalous dispersion near the transmission center and a normal dispersion away from the center, where it can be accelerated and slowed down, respectively. We also obtained the switch between fast and slow light by adjusting the external electric filed. The observed largest temporal gap is 541 ps, which is crucial in practical event operation inside the gap. The results offer a new solution for temporal cloak.

  10. Transmission Cost Allocation Methodologies for Regional Transmission Organizations

    SciTech Connect (OSTI)

    Fink, S.; Rogers, J.; Porter, K.

    2010-07-01

    This report describes transmission cost allocation methodologies for transmission projects developed to maintain or enhance reliability, to interconnect new generators, or to access new resources and enhance competitive bulk power markets, otherwise known as economic transmission projects.

  11. Virtual gap dielectric wall accelerator

    DOE Patents [OSTI]

    Caporaso, George James; Chen, Yu-Jiuan; Nelson, Scott; Sullivan, Jim; Hawkins, Steven A

    2013-11-05

    A virtual, moving accelerating gap is formed along an insulating tube in a dielectric wall accelerator (DWA) by locally controlling the conductivity of the tube. Localized voltage concentration is thus achieved by sequential activation of a variable resistive tube or stalk down the axis of an inductive voltage adder, producing a "virtual" traveling wave along the tube. The tube conductivity can be controlled at a desired location, which can be moved at a desired rate, by light illumination, or by photoconductive switches, or by other means. As a result, an impressed voltage along the tube appears predominantly over a local region, the virtual gap. By making the length of the tube large in comparison to the virtual gap length, the effective gain of the accelerator can be made very large.

  12. EIS-0411: Transmission Agency of Northern California Transmission Project

    Broader source: Energy.gov [DOE]

    This EIS is for the Western Area Power Administration construction, operation, and maintenance of the proposed transmission agency of Northern California Transmission Project, California.

  13. Substation Equipment Overview

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect PhotovoltaicsStructureInnovation Portal Substantially Parallel Flux

  14. Interconnection-Wide Transmission Planning Initiative - Meeting...

    Energy Savers [EERE]

    Recovery Act Interconnection Transmission Planning Interconnection-Wide Transmission Planning Initiative - Meeting Calendars Interconnection-Wide Transmission Planning...

  15. Designing electricity transmission auctions

    E-Print Network [OSTI]

    Greve, Thomas; Pollitt, Michael G.

    2012-10-26

    The UK has ambitious plans for exploiting offshore wind for electricity production in order to meet its challenging target under the EU Renewable Energy Directive. This could involve investing up to 20bn in transmission assets to bring electricity...

  16. Down hole transmission system

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT)

    2007-07-24

    A transmission system in a downhole component comprises a data transmission element in both ends of the downhole component. Each data transmission element houses an electrically conducting coil in a MCEI circular trough. The electrically conducting coil comprises at least two generally fractional loops. In the preferred embodiment, the transmission elements are connected by an electrical conductor. Preferably, the electrical conductor is a coaxial cable. Preferably, the MCEI trough comprises ferrite. In the preferred embodiment, the fractional loops are connected by a connecting cable. In one aspect of the present invention, the connecting cable is a pair of twisted wires. In one embodiment the connecting cable is a shielded pair of twisted wires. In another aspect of the present invention, the connecting cable is a coaxial cable. The connecting cable may be disposed outside of the MCEI circular trough.

  17. Downhole transmission system

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Fox, Joe (Spanish Fork, UT)

    2008-01-15

    A transmission system in a downhole component comprises a data transmission element in both ends of the downhole component. Each data transmission element houses an electrically conducting coil in a MCEI circular trough. An electrical conductor connects both the transmission elements. The electrical conductor comprises at least three electrically conductive elements insulated from each other. In the preferred embodiment the electrical conductor comprises an electrically conducting outer shield, an electrically conducting inner shield and an electrical conducting core. In some embodiments of the present invention, the electrical conductor comprises an electrically insulating jacket. In other embodiments, the electrical conductor comprises a pair of twisted wires. In some embodiments, the electrical conductor comprises semi-conductive material.

  18. Patterns of Transmission Investment

    E-Print Network [OSTI]

    Joskow, Paul

    2006-03-14

    influenced by uncertainty, contingency criteria and associated engineering reliability rules. I illustrate how the wholesale market and transmission investment frameworks have addressed these issues in England and Wales (E&W) since 1990 and in the PJM...

  19. Transmission and Storage Operations

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavingsTransmission SEAB PresentationTransmission and

  20. Multiple input electrode gap controller

    DOE Patents [OSTI]

    Hysinger, Christopher L. (Austin, TX); Beaman, Joseph J. (Austin, TX); Melgaard, David K. (Albuquerque, NE); Williamson, Rodney L. (Albuquerque, NE)

    1999-01-01

    A method and apparatus for controlling vacuum arc remelting (VAR) furnaces by estimation of electrode gap based on a plurality of secondary estimates derived from furnace outputs. The estimation is preferably performed by Kalman filter. Adaptive gain techniques may be employed, as well as detection of process anomalies such as glows.

  1. Multiple input electrode gap controller

    DOE Patents [OSTI]

    Hysinger, C.L.; Beaman, J.J.; Melgaard, D.K.; Williamson, R.L.

    1999-07-27

    A method and apparatus for controlling vacuum arc remelting (VAR) furnaces by estimation of electrode gap based on a plurality of secondary estimates derived from furnace outputs. The estimation is preferably performed by Kalman filter. Adaptive gain techniques may be employed, as well as detection of process anomalies such as glows. 17 figs.

  2. National transmission grid study

    SciTech Connect (OSTI)

    Abraham, Spencer

    2003-05-31

    The National Energy Policy Plan directed the U.S. Department of Energy (DOE) to conduct a study to examine the benefits of establishing a national electricity transmission grid and to identify transmission bottlenecks and measures to address them. DOE began by conducting an independent analysis of U.S. electricity markets and identifying transmission system bottlenecks using DOE’s Policy Office Electricity Modeling System (POEMS). DOE’s analysis, presented in Section 2, confirms the central role of the nation’s transmission system in lowering costs to consumers through increased trade. More importantly, DOE’s analysis also confirms the results of previous studies, which show that transmission bottlenecks and related transmission system market practices are adding hundreds of millions of dollars to consumers’ electricity bills each year. A more detailed technical overview of the use of POEMS is provided in Appendix A. DOE led an extensive, open, public input process and heard a wide range of comments and recommendations that have all been considered.1 More than 150 participants registered for three public workshops held in Detroit, MI (September 24, 2001); Atlanta, GA (September 26, 2001); and Phoenix, AZ (September 28, 2001).

  3. Microsoft PowerPoint - WAPA Transmission Developments in NM ...

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

    115 kV line, within Tri-State's existing corridor hosting the 115 between the Black Lake Substation & the Ojo Tap. 7 Southline 8 Centennial West - Clean Line Project The route of...

  4. TRANSMISSION MEDIA 4.1 Guided Transmission Media

    E-Print Network [OSTI]

    Scarano, Vittorio

    CHAPTER 4 TRANSMISSION MEDIA 4.1 Guided Transmission Media Twisted Pair Coaxial Cable Optical Fiber 4.2 Wireless Transmission Antennas Terrestrial Microwave Satellite Microwave Broadcast Radio.4 Line-of-Sight Transmission Free Space Loss Atmospheric Absorption Multipath Refraction 4.5 Recommended

  5. Air Gap Effects in LX-17

    SciTech Connect (OSTI)

    Souers, P C; Ault, S; Avara, R; Bahl, K L; Boat, R; Cunningham, B; Gidding, D; Janzen, J; Kuklo, D; Lee, R; Lauderbach, L; Weingart, W C; Wu, B; Winer, K

    2005-09-26

    Three experiments done over twenty years on gaps in LX-17 are reported. For the detonation front moving parallel to the gaps, jets of gas products were seen coming from the gaps at velocities greater than the detonation velocity. A case can be made that the jet velocity increased with gap thickness but the data is scattered. For the detonation front moving transverse to the gap, time delays were seen. The delays roughly increase with gap width, going from 0-70 ns at 'zero gap' to around 300 ns at 0.5-1 mm gap. Larger gaps of up to 6 mm width almost certainly stopped the detonation, but this was not proved. Real-time resolution of the parallel jets and determination of the actual re-detonation or failure in the transverse case needs to be done in future experiments.

  6. GAP

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal GasAdministration Medal01 Sandia4) AugustA. GeographicYucca

  7. Printed circuit dispersive transmission line

    DOE Patents [OSTI]

    Ikezi, H.; Lin-Liu, Y.R.; DeGrassie, J.S.

    1991-08-27

    A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other. 5 figures.

  8. Printed circuit dispersive transmission line

    DOE Patents [OSTI]

    Ikezi, Hiroyuki (Rancho Santa Fe, CA); Lin-Liu, Yuh-Ren (San Diego, CA); DeGrassie, John S. (Encinitas, CA)

    1991-01-01

    A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other.

  9. Big George to Carter Mountain 115-kV transmission line project, Park and Hot Springs Counties, Wyoming. Environmental Assessment

    SciTech Connect (OSTI)

    Not Available

    1994-02-01

    The Western Area Power Administration (Western) is proposing to rebuild, operate, and maintain a 115-kilovolt (kV) transmission line between the Big George and Carter Mountain Substations in northwest Wyoming (Park and Hot Springs Counties). This environmental assessment (EA) was prepared in compliance with the National Environmental Policy Act (NEPA) and the regulations of the Council on Environmental Quality (CEQ) and the Department of Energy (DOE). The existing Big George to Carter Mountain 69-kV transmission line was constructed in 1941 by the US Department of Interior, Bureau of Reclamation, with 1/0 copper conductor on wood-pole H-frame structures without an overhead ground wire. The line should be replaced because of the deteriorated condition of the wood-pole H-frame structures. Because the line lacks an overhead ground wire, it is subject to numerous outages caused by lightning. The line will be 54 years old in 1995, which is the target date for line replacement. The normal service life of a wood-pole line is 45 years. Under the No Action Alternative, no new transmission lines would be built in the project area. The existing 69-kV transmission line would continue to operate with routine maintenance, with no provisions made for replacement.

  10. Electronic gap sensor and method

    DOE Patents [OSTI]

    Williams, Robert S. (Fairfield, OH); King, Edward L. (Trenton, OH); Campbell, Steven L. (Middletown, OH)

    1991-01-01

    An apparatus and method for regulating the gap between a casting nozzle and a casting wheel in which the gap between the casting nozzle and the casting wheel is monitored by means of at least one sensing element protruding from the face of the casting nozzle. The sensing element is preferably connected to a voltage source and the casting wheel grounded. When the sensing element contacts the casting wheel, an electric circuit is completed. The completion of the circuit can be registered by an indicator, and the presence or absence of a completed circuit indicates the relative position of the casting nozzle to the casting wheel. The relative positions of the casting nozzle and casting wheel can thereby be selectively adjusted to continually maintain a predetermined distance between their adjacent surfaces.

  11. Electronic gap sensor and method

    DOE Patents [OSTI]

    Williams, R.S.; King, E.L.; Campbell, S.L.

    1991-08-06

    Disclosed are an apparatus and method for regulating the gap between a casting nozzle and a casting wheel in which the gap between the casting nozzle and the casting wheel is monitored by means of at least one sensing element protruding from the face of the casting nozzle. The sensing element is preferably connected to a voltage source and the casting wheel grounded. When the sensing element contacts the casting wheel, an electric circuit is completed. The completion of the circuit can be registered by an indicator, and the presence or absence of a completed circuit indicates the relative position of the casting nozzle to the casting wheel. The relative positions of the casting nozzle and casting wheel can thereby be selectively adjusted to continually maintain a predetermined distance between their adjacent surfaces. 5 figures.

  12. Hard-gapped Holographic Superconductors

    E-Print Network [OSTI]

    Pallab Basu; Jianyang He; Anindya Mukherjee; Hsien-Hang Shieh

    2009-12-05

    In this work we discuss the zero temperature limit of a "p-wave" holographic superconductor. The bulk description consists of a non-Abelian SU(2) gauge fields minimally coupled to gravity. We numerically construct the zero temperature solution which is the gravity dual of the superconducting ground state of the "p-wave" holographic superconductors. The solution is a smooth soliton with zero horizon size and shows an emergent conformal symmetry in the IR. We found the expected superconducting behavior. Using the near horizon analysis we show that the system has a "hard gap" for the relevant gauge field fluctuations. At zero temperature the real part of the conductivity is zero for an excitation frequency less than the gap frequency. This is in contrast with what has been observed in similar scalar- gravity-gauge systems (holographic superconductors). We also discuss the low but finite temperature behavior of our solution.

  13. Who Gets Public Goods? Using Satellite Imagery to Measure the Distribution of Rural Electrification

    E-Print Network [OSTI]

    Min, Brian

    2007-01-01

    cost investments in infrastructure including new power plants, long haul transmission lines, substations, and

  14. Transmission line capital costs

    SciTech Connect (OSTI)

    Hughes, K.R.; Brown, D.R.

    1995-05-01

    The displacement or deferral of conventional AC transmission line installation is a key benefit associated with several technologies being developed with the support of the U.S. Department of Energy`s Office of Energy Management (OEM). Previous benefits assessments conducted within OEM have been based on significantly different assumptions for the average cost per mile of AC transmission line. In response to this uncertainty, an investigation of transmission line capital cost data was initiated. The objective of this study was to develop a database for preparing preliminary estimates of transmission line costs. An extensive search of potential data sources identified databases maintained by the Bonneville Power Administration (BPA) and the Western Area Power Administration (WAPA) as superior sources of transmission line cost data. The BPA and WAPA data were adjusted to a common basis and combined together. The composite database covers voltage levels from 13.8 to 765 W, with cost estimates for a given voltage level varying depending on conductor size, tower material type, tower frame type, and number of circuits. Reported transmission line costs vary significantly, even for a given voltage level. This can usually be explained by variation in the design factors noted above and variation in environmental and land (right-of-way) costs, which are extremely site-specific. Cost estimates prepared from the composite database were compared to cost data collected by the Federal Energy Regulatory Commission (FERC) for investor-owned utilities from across the United States. The comparison was hampered because the only design specifications included with the FERC data were voltage level and line length. Working within this limitation, the FERC data were not found to differ significantly from the composite database. Therefore, the composite database was judged to be a reasonable proxy for estimating national average costs.

  15. Gas insulated transmission line with insulators having field controlling recesses

    DOE Patents [OSTI]

    Cookson, Alan H. (Pittsburgh, PA); Pederson, Bjorn O. (Chelmsford, MA)

    1984-01-01

    A gas insulated transmission line having a novel insulator for supporting an inner conductor concentrically within an outer sheath. The insulator has a recess contiguous with the periphery of one of the outer and inner conductors. The recess is disposed to a depth equal to an optimum gap for the dielectric insulating fluid used for the high voltage insulation or alternately disposed to a large depth so as to reduce the field at the critical conductor/insulator interface.

  16. Low band gap polymers Organic Photovoltaics

    E-Print Network [OSTI]

    Low band gap polymers for Organic Photovoltaics Eva Bundgaard Ph.D. Dissertation Risø National Bundgaard Title: Low band gap polymers for Organic photovoltaics Department: The polymer department Report the area of organic photovoltaics are focusing on low band gap polymers, a type of polymer which absorbs

  17. Calibration curves for some standard Gap Tests

    SciTech Connect (OSTI)

    Bowman, A.L.; Sommer, S.C.

    1989-01-01

    The relative shock sensitivities of explosive compositions are commonly assessed using a family of experiments that can be described by the generic term ''Gap Test.'' Gap tests include a donor charge, a test sample, and a spacer, or gap, between two explosives charges. The donor charge, gap material, and test dimensions are held constant within each different version of the gap test. The thickness of the gap is then varied to find the value at which 50% of the test samples will detonate. The gap tests measure the ease with a high-order detonation can be established in the test explosive, or the ''detonability,'' of the explosive. Test results are best reported in terms of the gap thickness at the 50% point. It is also useful to define the shock pressure transmitted into the test sample at the detonation threshold. This requires calibrating the gap test in terms of shock pressure in the gap as a function of the gap thickness. It also requires a knowledge of the shock Hugoniot of the sample explosive. We used the 2DE reactive hydrodynamic code with Forest Fire burn rates for the donor explosives to calculate calibration curves for several gap tests. The model calculations give pressure and particle velocity on the centerline of the experimental set-up and provide information about the curvature and pulse width of the shock wave. 10 refs., 1 fig.

  18. Autonomous data transmission apparatus

    DOE Patents [OSTI]

    Kotlyar, O.M.

    1997-03-25

    A autonomous borehole data transmission apparatus is described for transmitting measurement data from measuring instruments at the downhole end of a drill string by generating pressure pulses utilizing a transducer longitudinally responsive to magnetic field pulses caused by electrical pulses corresponding to the measured downhole parameters. 4 figs.

  19. Autonomous data transmission apparatus

    DOE Patents [OSTI]

    Kotlyar, Oleg M. (4675 W. 3825 S, Salt Lake City, UT 84120)

    1997-01-01

    A autonomous borehole data transmission apparatus for transmitting measurement data from measuring instruments at the downhole end of a drill string by generating pressure pulses utilizing a transducer longitudinally responsive to magnetic field pulses caused by electrical pulses corresponding to the measured downhole parameters.

  20. Borehole data transmission apparatus

    DOE Patents [OSTI]

    Kotlyar, O.M.

    1993-03-23

    A borehole data transmission apparatus is described whereby a centrifugal pump impeller(s) is used to provide a turbine stage having substantial pressure characteristics in response to changing rotational speed of a shaft for the pressure pulsing of data from the borehole through the drilling mud to the surface of the earth.

  1. Borehole data transmission apparatus

    DOE Patents [OSTI]

    Kotlyar, Oleg M. (1739 Grandview #2, Idaho Falls, ID 83402)

    1993-01-01

    A borehole data transmission apparatus whereby a centrifugal pump impeller(s) is used to provide a turbine stage having substantial pressure characteristics in response to changing rotational speed of a shaft for the pressure pulsing of data from the borehole through the drilling mud to the surface of the earth.

  2. EA-0587: Proposed Amendment to Presidential Permit PP-63 and Associated Modification to 500 kV International Transmission Line: Forbes, Minnesota to Manitoba, Canada

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of Northern States Power Company's  proposal to expand the Forbes Substation in Minnesota.

  3. Supervisory Electrical Engineer

    Broader source: Energy.gov [DOE]

    This position is located in Substation Maintenance and High Voltage Engineering (TESM) of Substation Engineering (TES), Engineering and Technical Services (TE), Transmission Services (T),...

  4. Microsoft PowerPoint - MACRUC Smart Grid School_rev 2A_NETL.pptx

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

    enables "Self Healing" 33 33 g Advanced Transmission Solutions * Wide Area Measurement System (WAMS) * Substation Automation Substation Automation * Advanced regional operating...

  5. Technical Standards, MELCOR - Gap Analysis - May 3, 2004 | Department...

    Office of Environmental Management (EM)

    MELCOR - Gap Analysis - May 3, 2004 Technical Standards, MELCOR - Gap Analysis - May 3, 2004 May 3, 2004 Software Quality Assurance Improvement Plan: MELCOR Gap Analysis This...

  6. Drill string transmission line

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David S. (Lehi, UT); Bradford, Kline (Orem, UT); Fox, Joe (Spanish Fork, UT)

    2006-03-28

    A transmission line assembly for transmitting information along a downhole tool comprising a pin end, a box end, and a central bore traveling between the pin end and the box end, is disclosed in one embodiment of the invention as including a protective conduit. A transmission line is routed through the protective conduit. The protective conduit is routed through the central bore and the ends of the protective conduit are routed through channels formed in the pin end and box end of the downhole tool. The protective conduit is elastically forced into a spiral or other non-linear path along the interior surface of the central bore by compressing the protective conduit to a length within the downhole tool shorter than the protective conduit.

  7. Transmission | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al., 2013)OpenEnergyTrail Canyon GeothermalTransmission (Redirected from

  8. Transmission Siting_071508.indd

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavingsTransmission SEAB Presentation

  9. Boardman to Hemingway Transmission Project

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

    Market Generator Interconnection Reform Implementation Network Integration Transmission Service (NT Service) Network Open Season (NOS) PTSA Reform North American Energy...

  10. Transmission eigenvalues for elliptic operators

    E-Print Network [OSTI]

    Michael Hitrik; Katsiaryna Krupchyk; Petri Ola; Lassi Päivärinta

    2010-07-03

    A reduction of the transmission eigenvalue problem for multiplicative sign-definite perturbations of elliptic operators with constant coefficients to an eigenvalue problem for a non-selfadjoint compact operator is given. Sufficient conditions for the existence of transmission eigenvalues and completeness of generalized eigenstates for the transmission eigenvalue problem are derived. In the trace class case, the generic existence of transmission eigenvalues is established.

  11. Transmission Line Circuit Alexander Glasser

    E-Print Network [OSTI]

    Anlage, Steven

    Chaos in a Transmission Line Circuit Alexander Glasser Marshal Miller With... Prof. Edward Ott Prof times become shorter, circuit connections behave more and more like transmission lines. Theoretical(t) - Transmission Line (Zo, T) #12;5 Cf/Cr 1000 Vf Capacitance Voltage Cf Cr Model for Nonlinear Capacitor

  12. Approaches To Integrating A HIgh Penertration Of Solar PV and CPV Onto The Electrical Grid

    E-Print Network [OSTI]

    Hill, Steven Craig

    2013-01-01

    of way costs per acre. Substation costs also vary with size.the transmission and substation costs to produce a realisticRight of Way Cost Substation Cost AFUDC/ Overhead Cost Total

  13. GAPS IN THE GD-1 STAR STREAM

    SciTech Connect (OSTI)

    Carlberg, R. G. [Department of Astronomy and Astrophysics, University of Toronto, Toronto, ON M5S 3H4 (Canada); Grillmair, C. J., E-mail: carlberg@astro.utoronto.ca, E-mail: carl@ipac.caltech.edu [Spitzer Science Center, 1200 East California Boulevard, Pasadena, CA 91125 (United States)

    2013-05-10

    GD-1 is a long, thin, Milky Way star stream that has readily visible density variations along its length. We quantify the locations, sizes, and statistical significance of the density structure, i.e., gaps, using a set of scaled filters. The shapes of the filters are based on the gaps that develop in simulations of dark matter sub-halos crossing a star stream. The high Galactic latitude 8.4 kpc long segment of GD-1 that we examine has 8 {+-} 3 gaps of 99% significance or greater, with the error estimated on the basis of tests of the gap-filtering technique. The cumulative distribution of gaps more than three times the width of the stream is in good agreement with predictions for dark matter sub-halo encounters with cold star streams. The number of gaps narrower than three times the width of the GD-1 stream falls well below the cold stream prediction which is taken into account for the gap creation rate integrated over all sizes. Simple warm stream simulations scaled to GD-1 show that the falloff in gaps is expected for sub-halos below a mass of 10{sup 6} M{sub Sun }. The GD-1 gaps requires 100 sub-halos >10{sup 6} M{sub Sun} within 30 kpc, the apocenter of GD-1 orbit. These results are consistent with LCDM sub-halo predictions but further improvements in stream signal-to-noise and gap modeling will be welcome.

  14. New Mexico/Transmission | Open Energy Information

    Open Energy Info (EERE)

    Western Area Power Administration, provide transmission in the state of New Mexico. Renewable Energy Transmission Authority The New Mexico Renewable Energy Transmission Authority...

  15. 2015 National Electric Transmission Congestion Study | Department...

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

    2015 National Electric Transmission Congestion Study 2015 National Electric Transmission Congestion Study 2015 National Electric Transmission Congestion Study Section 1221(a) of...

  16. Flexible Transmission in the Smart Grid

    E-Print Network [OSTI]

    Hedman, Kory Walter

    2010-01-01

    models of the electric transmission network flow problem.requirements in the electric transmission grid is provided.operations of the electric transmission grid. It also

  17. Cyclical-Transmission-Schedule Reservation Technique

    E-Print Network [OSTI]

    Garcia-Luna-Aceves, J.J.

    2010-01-01

    52) (58) (56) CYCLICAL-TRANSMISSION-SCHEDULE 6,118,787 A *for Topology Dependent Transmission Scheduling, in Proc.times an associ- ated transmission waiting time; and

  18. Flexible Transmission in the Smart Grid

    E-Print Network [OSTI]

    Hedman, Kory Walter

    2010-01-01

    differences: models for transmission property rights,” IEEEto solve power transmission network design problems,” IEEES. A. "Network topologies and transmission investment under

  19. Transmission Power Management for Wireless Health Applications

    E-Print Network [OSTI]

    Amini, Navid

    2012-01-01

    Experimental Analysis of RF Transmission Characteristics foroptimal low-energy transmission strategy for ieee 802.11a/h.Distributed algorithms for transmission power control in

  20. Device-to-Device Assisted Video Transmission

    E-Print Network [OSTI]

    Shen, Y; Zhou, W; Wu, P; Toni, L; Cosman, P C; Milstein, L B

    2013-01-01

    Equipment (UE) radio transmission and reception (3GPP TSand Mobile Ad Hoc Networks: Transmission-Capacity Tradeoff”,Device Assisted Video Transmission Yichao Shen, Wenwen Zhou,

  1. Transmission Grid Integration | Department of Energy

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

    utility operations, engage in transmission planning forums, and model generator output. More information on transmission grid integration is available in the Transmission...

  2. Electricity Transmission, A Primer | Department of Energy

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

    Electricity Transmission, A Primer Electricity Transmission, A Primer This primer on electric transmission is intended to help policymakers understand the physics of the...

  3. Photonic band gap structure simulator

    DOE Patents [OSTI]

    Chen, Chiping; Shapiro, Michael A.; Smirnova, Evgenya I.; Temkin, Richard J.; Sirigiri, Jagadishwar R.

    2006-10-03

    A system and method for designing photonic band gap structures. The system and method provide a user with the capability to produce a model of a two-dimensional array of conductors corresponding to a unit cell. The model involves a linear equation. Boundary conditions representative of conditions at the boundary of the unit cell are applied to a solution of the Helmholtz equation defined for the unit cell. The linear equation can be approximated by a Hermitian matrix. An eigenvalue of the Helmholtz equation is calculated. One computation approach involves calculating finite differences. The model can include a symmetry element, such as a center of inversion, a rotation axis, and a mirror plane. A graphical user interface is provided for the user's convenience. A display is provided to display to a user the calculated eigenvalue, corresponding to a photonic energy level in the Brilloin zone of the unit cell.

  4. Electrolysis-Utility Integration Workshop September 22, 2004

    E-Print Network [OSTI]

    " Distribution substations ! Each locations has different issues " Operational " Cost " Distribution (of H2Siting and Location ! Electrolysis systems can be sited at " Existing generating stations " Transmission substations($/MWh) Baseload Intermediate Peaking #12;Transmission Substation SiteTransmission Substation Site ! Offers same

  5. Microsoft Word - Whitepaper_The Modern Grid Vision_APPROVED_2009...

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

    and reduce transmission congestion. Advanced transmission operations includes substation automation, integrated wide area measurement applications, power electronics, advanced...

  6. Automated manual transmission clutch controller

    DOE Patents [OSTI]

    Lawrie, Robert E. (9375 Kearney Rd., Whitmore Lake, MI 48189); Reed, Jr., Richard G. (3003 Bembridge, Royal Oak, MI 48073); Rausen, David J. (519 S. Gaylord St., Denver, CO 80209)

    1999-11-30

    A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate as an automatic transmission from the perspective of the driver. The engine and the electric machine drive an input shaft which in turn drives an output shaft of the transmission. In addition to driving the transmission, the electric machine regulates the speed of the input shaft in order to synchronize the input shaft during either an upshift or downshift of the transmission by either decreasing or increasing the speed of the input shaft. When decreasing the speed of the input shaft, the electric motor functions as an alternator to produce electrical energy which may be stored by a storage device. Operation of the transmission is controlled by a transmission controller which receives input signals and generates output signals to control shift and clutch motors to effect smooth launch, upshift shifts, and downshifts of the transmission, so that the transmission functions substantially as an automatic transmission from the perspective of the driver, while internally substantially functioning as a manual transmission.

  7. Gap between active and passive solar heating

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1985-01-01

    The gap between active and passive solar could hardly be wider. The reasons for this are discussed and advantages to narrowing the gap are analyzed. Ten years of experience in both active and passive systems are reviewed, including costs, frequent problems, performance prediction, performance modeling, monitoring, and cooling concerns. Trends are analyzed, both for solar space heating and for service water heating. A tendency for the active and passive technologies to be converging is observed. Several recommendations for narrowing the gap are presented.

  8. Heat transmission in Relativity

    E-Print Network [OSTI]

    A. Brotas; J. C. Fernandes

    2003-07-16

    The simultaneous study of deformation and heat transmission in a bar was ignored for about 150 years. The traditional Fourier equation just allows to study the evolution of temperature in a undeformable bar. The search for its relativistic variant is a task which must fail because in Relativity there are no undeformable bars. Rigid bodies, in the sense as rigid as possible, are deformables. In this work we show how to write in Relativity the system of equations necessary to study simultaneously deformation and temperature evolution along a rigid bar.

  9. Transmission SEAB Presentation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE- Non-ResidentialAlliantPGEDepartmentfan system' % ~ TransmissionAvailable

  10. DOE Transmission Workshop

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i pStateDOE FederalTheofHeyeck, AEP, Sr. Vice President, Transmission

  11. Transmission Business Line

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week DayDr.Theories81TowardsTrackingCarbon2Transmission

  12. FAQS Gap Analysis Qualification Card – Criticality Safety

    Broader source: Energy.gov [DOE]

    Functional Area Qualification Standard Gap Analysis Qualification Cards outline the differences between the last and latest version of the FAQ Standard.

  13. FAQS Gap Analysis Qualification Card – Construction Management

    Broader source: Energy.gov [DOE]

    Functional Area Qualification Standard Gap Analysis Qualification Cards outline the differences between the last and latest version of the FAQ Standard.

  14. FAQS Gap Analysis Qualification Card – Mechanical Systems

    Broader source: Energy.gov [DOE]

    Functional Area Qualification Standard Gap Analysis Qualification Cards outline the differences between the last and latest version of the FAQ Standard.

  15. FAQS Gap Analysis Qualification Card – Emergency Management

    Broader source: Energy.gov [DOE]

    Functional Area Qualification Standard Gap Analysis Qualification Cards outline the differences between the last and latest version of the FAQ Standard.

  16. FAQS Gap Analysis Qualification Card – Radiation Protection

    Broader source: Energy.gov [DOE]

    Functional Area Qualification Standard Gap Analysis Qualification Cards outline the differences between the last and latest version of the FAQ Standard.

  17. Light Transmission through Sub-Wavelength Apertures

    E-Print Network [OSTI]

    Visser, Taco D.

    Light Transmission through Sub-Wavelength Apertures #12;#12;VRIJE UNIVERSITEIT Light Transmission Transmission through a Single Sub-wavelength Slit 59 3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 3.2 The configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 3.3 Transmission

  18. Gap Assessment (FY 13 Update)

    SciTech Connect (OSTI)

    Getman, Dan

    2013-09-30

    To help guide its future data collection efforts, The DOE GTO funded a data gap analysis in FY2012 to identify high potential hydrothermal areas where critical data are needed. This analysis was updated in FY2013 and the resulting datasets are represented by this metadata. The original process was published in FY 2012 and is available here: https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2013/Esposito.pdf Though there are many types of data that can be used for hydrothermal exploration, five types of exploration data were targeted for this analysis. These data types were selected for their regional reconnaissance potential, and include many of the primary exploration techniques currently used by the geothermal industry. The data types include: 1. well data 2. geologic maps 3. fault maps 4. geochemistry data 5. geophysical data To determine data coverage, metadata for exploration data (including data type, data status, and coverage information) were collected and catalogued from nodes on the National Geothermal Data System (NGDS). It is the intention of this analysis that the data be updated from this source in a semi-automated fashion as new datasets are added to the NGDS nodes. In addition to this upload, an online tool was developed to allow all geothermal data providers to access this assessment and to directly add metadata themselves and view the results of the analysis via maps of data coverage in Geothermal Prospector (http://maps.nrel.gov/gt_prospector). A grid of the contiguous U.S. was created with 88,000 10-km by 10-km grid cells, and each cell was populated with the status of data availability corresponding to the five data types. Using these five data coverage maps and the USGS Resource Potential Map, sites were identified for future data collection efforts. These sites signify both that the USGS has indicated high favorability of occurrence of geothermal resources and that data gaps exist. The uploaded data are contained in two data files for each data category. The first file contains the grid and is in the SHP file format (shape file.) Each populated grid cell represents a 10k area within which data is known to exist. The second file is a CSV (comma separated value) file that contains all of the individual layers that intersected with the grid. This CSV can be joined with the map to retrieve a list of datasets that are available at any given site. The attributes in the CSV include: 1. grid_id : The id of the grid cell that the data intersects with 2. title: This represents the name of the WFS service that intersected with this grid cell 3. abstract: This represents the description of the WFS service that intersected with this grid cell 4. gap_type: This represents the category of data availability that these data fall within. As the current processing is pulling data from NGDS, this category universally represents data that are available in the NGDS and are ready for acquisition for analytic purposes. 5. proprietary_type: Whether the data are considered proprietary 6. service_type: The type of service 7. base_url: The service URL

  19. 2012 National Electric Transmission Congestion Study: Presentation...

    Energy Savers [EERE]

    2012 National Electric Transmission Congestion Study: Presentation from Congestion Study Webinar Series 2012 National Electric Transmission Congestion Study: Presentation from...

  20. 2009 National Electric Transmission Congestion Study Workshops...

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

    Congestion Studies 2009 Congestion Study 2009 National Electric Transmission Congestion Study Workshops 2009 National Electric Transmission Congestion Study Workshops DOE...

  1. Transmission Eigenvalues in Inverse Scattering Theory

    E-Print Network [OSTI]

    2012-04-22

    TE and Scattering Theory. Spherically Stratified Media. Transmission Eigenvalues. Open Problem. Transmission Eigenvalues in Inverse. Scattering Theory.

  2. Transmission Reliability Program 2015 Reliability & Markets Peer...

    Office of Environmental Management (EM)

    Transmission Reliability Program 2015 Reliability & Markets Peer Review Materials Available Transmission Reliability Program 2015 Reliability & Markets Peer Review Materials...

  3. Manual transmission shift linkage

    SciTech Connect (OSTI)

    Sewell, J.S.

    1991-10-01

    This patent describes a sliding gear manual transmission (10) for an automotive vehicle including a transmission housing (11), an input shaft (12) journalled in the housing, an output shaft (13) axially aligned with the input shaft and journalled in the housing, a countershaft (15) journalled in the housing and carrying a cluster gear (17) thereon, the input shaft (12) terminating in an input gear (14), a plurality of gears (26,27,28,29,31,31) on the output shaft (13) in meshing engagement with the cluster gear (17), and a plurality of synchronizing clutches (36,38,41,42) on the output shaft and countershaft for engagement of gear ratios of the meshing gears, and an axially movable and rotatable shift rail (81) located in the housing and operatively connected to a shift lever (82) actuated by the vehicle operator, the improvement comprising an auxiliary shift rail (98) located in the housing (11) generally paralleling the first mentioned shift rail (81) to provide for actuation of fifth, sixth and reverse gears the auxiliary shift rail (98) having a 5-6 shift arm (104) journalled thereon for axial movement relative thereto, and a reverse shift arm (99) rotatably mounted thereon for axial movement therewith.

  4. Colorado Electrical Transmission Grid

    SciTech Connect (OSTI)

    Zehner, Richard E.

    2012-02-01

    Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Originator: Xcel Energy Publication Date: 2012 Title: Colorado XcelEnergy NonXcel Transmission Network Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains transmission network of Colorado Spatial Domain: Extent: Top: 4540689.017558 m Left: 160606.141934 m Right: 758715.946645 m Bottom: 4098910.893397m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shapefile

  5. Microwave band gap and cavity mode in spoof-insulator-spoof waveguide with multiscale structured surface

    E-Print Network [OSTI]

    Zhang, Qiang; Han, Dezhuan; Qin, Fei Fei; Zhang, Xiao Ming; Yao, Yong

    2015-01-01

    We propose a multiscale spoof-insulator-spoof (SIS) waveguide by introducing periodic geometry modulation in the wavelength scale to a SIS waveguide made of perfect electric conductor. The MSIS consists of multiple SIS subcells. The dispersion relationship of the fundamental guided mode of the spoof surface plasmon polaritons (SSPPs) is studied analytically within the small gap approximation. It is shown that the multiscale SIS possesses microwave band gap (MBG) due to the Bragg scattering. The "gap maps" in the design parameter space are provided. We demonstrate that the geometry of the subcells can efficiently adjust the effective refraction index of the elementary SIS and therefore further control the width and the position of the MBG. The results are in good agreement with numerical calculations by the finite element method (FEM). For finite-sized MSIS of given geometry in the millimeter scale, FEM calculations show that the first-order symmetric SSPP mode has zero transmission in the MBG within frequency...

  6. Drop short control of electrode gap

    DOE Patents [OSTI]

    Fisher, Robert W. (Albuquerque, NM); Maroone, James P. (Albuquerque, NM); Tipping, Donald W. (Albuquerque, NM); Zanner, Frank J. (Sandia Park, NM)

    1986-01-01

    During vacuum consumable arc remelting the electrode gap between a consumable electrode and a pool of molten metal is difficult to control. The present invention monitors drop shorts by detecting a decrease in the voltage between the consumable electrode and molten pool. The drop shorts and their associated voltage reductions occur as repetitive pulses which are closely correlated to the electrode gap. Thus, the method and apparatus of the present invention controls electrode gap based upon drop shorts detected from the monitored anode-cathode voltage. The number of drop shorts are accumulated, and each time the number of drop shorts reach a predetermined number, the average period between drop shorts is calculated from this predetermined number and the time in which this number is accumulated. This average drop short period is used in a drop short period electrode gap model which determines the actual electrode gap from the drop short. The actual electrode gap is then compared with a desired electrode gap which is selected to produce optimum operating conditions and the velocity of the consumable error is varied based upon the gap error. The consumable electrode is driven according to any prior art system at this velocity. In the preferred embodiment, a microprocessor system is utilized to perform the necessary calculations and further to monitor the duration of each drop short. If any drop short exceeds a preset duration period, the consumable electrode is rapidly retracted a predetermined distance to prevent bonding of the consumable electrode to the molten remelt.

  7. Gas mixtures for spark gap closing switches

    DOE Patents [OSTI]

    Christophorou, Loucas G. (Oak Ridge, TN); McCorkle, Dennis L. (Knoxville, TN); Hunter, Scott R. (Oak Ridge, TN)

    1988-01-01

    Gas mixtures for use in spark gap closing switches comprised of fluorocarbons and low molecular weight, inert buffer gases. To this can be added a third gas having a low ionization potential relative to the buffer gas. The gas mixtures presented possess properties that optimized the efficiency spark gap closing switches.

  8. Gas mixtures for spark gap closing switches

    DOE Patents [OSTI]

    Christophorou, L.G.; McCorkle, D.L.; Hunter, S.R.

    1987-02-20

    Gas mixtures for use in spark gap closing switches comprised of fluorocarbons and low molecular weight, inert buffer gases. To this can be added a third gas having a low ionization potential relative to the buffer gas. The gas mixtures presented possess properties that optimized the efficiency spark gap closing switches. 6 figs.

  9. Narrow band gap amorphous silicon semiconductors

    DOE Patents [OSTI]

    Madan, A.; Mahan, A.H.

    1985-01-10

    Disclosed is a narrow band gap amorphous silicon semiconductor comprising an alloy of amorphous silicon and a band gap narrowing element selected from the group consisting of Sn, Ge, and Pb, with an electron donor dopant selected from the group consisting of P, As, Sb, Bi and N. The process for producing the narrow band gap amorphous silicon semiconductor comprises the steps of forming an alloy comprising amorphous silicon and at least one of the aforesaid band gap narrowing elements in amount sufficient to narrow the band gap of the silicon semiconductor alloy below that of amorphous silicon, and also utilizing sufficient amounts of the aforesaid electron donor dopant to maintain the amorphous silicon alloy as an n-type semiconductor.

  10. Dynamic Transmission Electron Microscopy

    SciTech Connect (OSTI)

    Evans, James E.; Jungjohann, K. L.; Browning, Nigel D.

    2012-10-12

    Dynamic transmission electron microscopy (DTEM) combines the benefits of high spatial resolution electron microscopy with the high temporal resolution of ultrafast lasers. The incorporation of these two components into a single instrument provides a perfect platform for in situ observations of material processes. However, previous DTEM applications have focused on observing structural changes occurring in samples exposed to high vacuum. Therefore, in order to expand the pump-probe experimental regime to more natural environmental conditions, in situ gas and liquid chambers must be coupled with Dynamic TEM. This chapter describes the current and future applications of in situ liquid DTEM to permit time-resolved atomic scale observations in an aqueous environment, Although this chapter focuses mostly on in situ liquid imaging, the same research potential exists for in situ gas experiments and the successful integration of these techniques promises new insights for understanding nanoparticle, catalyst and biological protein dynamics with unprecedented spatiotemporal resolution.

  11. AGENDA: PETROLEUM PRODUCT TRANSMISSION & DISTRIBUTION

    Office of Energy Efficiency and Renewable Energy (EERE)

    The agenda for the Quadrennial Energy Review (QER) public stakeholder meeting in New Orleans on petroleum product transmission, distribution, and storage.

  12. Vice President, Transmission System Operations

    Broader source: Energy.gov [DOE]

    The VP for Transmission System Operations provides strategic leadership, direction, and oversight of the people, business processes, and systems that are responsible for the safe, reliable, and...

  13. Helicopter aids transmission pole replacement

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

    Helicopter-aids-transmission-pole-replacement Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects...

  14. Transmission Planning | Department of Energy

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

    visualization, control, operations, and market structure will ultimately modernize the electricity transmission infrastructure to ease congestion, allow for increases in demand,...

  15. Transmission Workshop | Department of Energy

    Energy Savers [EERE]

    which addressed the challenges and opportunities presented by the integration of 21st century energy technologies into the electricity transmission system. Parallel sessions...

  16. The interior transmission problem and bounds on transmission eigenvalues

    E-Print Network [OSTI]

    Michael Hitrik; Katsiaryna Krupchyk; Petri Ola; Lassi Päivärinta

    2010-09-28

    We study the interior transmission eigenvalue problem for sign-definite multiplicative perturbations of the Laplacian in a bounded domain. We show that all but finitely many complex transmission eigenvalues are confined to a parabolic neighborhood of the positive real axis.

  17. Attenuation of optical transmission within the band gap of thin twodimensional macroporous silicon photonic crystals

    E-Print Network [OSTI]

    John, Sajeev

    solution and illuminated from the wafer backside. If applied to a polished silicon wafer, the pore@physics.utoronto.ca b# Present address: Institute for Theory of Condensed Matter, University of Karlsruhe, P.O. Box 6980

  18. Joint HVAC Transmission EMF Environmental Study : Final Report on Experiment 1.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration; Oregon Regional Primate Research Center

    1992-05-01

    This document describes the rationale, procedures, and results of a carefully controlled study conducted to establish whether chronic exposure of female (ewe) Suffolk lambs to the environment of a 500-kV 60-Hz transmission line would affect various characteristics of growth, endocrine function, and reproductive development. This experiment used identical housing and management schemes for control and line-exposed ewes, thus minimizing these factors as contributors to between-group experimental error. Further, throughout the 10-month duration of this study, changes in electric and magnetic fields, audible noise, and weather conditions were monitored continuously by a computerized system. Such measurements provided the opportunity to identify any relationship between environmental factors and biological responses. Because of reports in the literature that electric and magnetic fields alter concentrations of melatonin in laboratory animals, the primary objective of this study was to ascertain whether a similar effect occurs in lambs exposed to a 500-kV a-c line in a natural setting. In addition, onset of puberty, changes in body weight, wool growth, and behavior were monitored. To determine whether the environment of a 500-kV line caused stress in the study animals, serum levels of cortisol were measured. The study was conducted at Bonneville Power Administration`s Ostrander Substation near Estacada, Oregon.

  19. Proponent's Environmental Assessment (PEA) Checklist for Transmission

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource HistoryPotentialRuralUtilityScalePVGeneration Jump to:SpatialResolutionWidth (m) JumpLine and Substation

  20. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    DOE). 2006. National Electric Transmission Congestion Study.Division. 2003. Electric Transmission Plan for RenewableIdentifying Minnesota’s Electric Transmission Infrastructure

  1. A CRITICAL REVIEW OF WIND TRANSMISSION COST ESTIMATES FROM MAJOR TRANSMISSION PLANNING EFFORTS

    E-Print Network [OSTI]

    Mills, Andrew; Wiser, Ryan; Porter, Kevin

    2007-01-01

    Generation Outlet Electric Transmission Study. May.Identifying Minnesota’s Electric Transmission InfrastructureGeneration Outlet Electric Transmission Study Xcel-31A

  2. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    Certificates of Need for Transmission Lines to Support theand Preference in Transmission Service. ” Washington, D.C. :Integrating Wind into Transmission Planning: The Rocky

  3. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    additional transmission costs to new electricity generators,additional transmission costs to new electricity generators,Electricity Coordinating Council / California - 13 transmission

  4. HVDC power transmission technology assessment

    SciTech Connect (OSTI)

    Hauth, R.L.; Tatro, P.J.; Railing, B.D.; Johnson, B.K.; Stewart, J.R.; Fink, J.L.

    1997-04-01

    The purpose of this study was to develop an assessment of the national utility system`s needs for electric transmission during the period 1995-2020 that could be met by future reduced-cost HVDC systems. The assessment was to include an economic evaluation of HVDC as a means for meeting those needs as well as a comparison with competing technologies such as ac transmission with and without Flexible AC Transmission System (FACTS) controllers. The role of force commutated dc converters was to be assumed where appropriate. The assessment begins by identifying the general needs for transmission in the U.S. in the context of a future deregulated power industry. The possible roles for direct current transmission are then postulated in terms of representative scenarios. A few of the scenarios are illustrated with the help of actual U.S. system examples. non-traditional applications as well as traditional applications such as long lines and asynchronous interconnections are discussed. The classical ``break-even distance`` concept for comparing HVDC and ac lines is used to assess the selected scenarios. The impact of reduced-cost converters is reflected in terms of the break-even distance. This report presents a comprehensive review of the functional benefits of HVDC transmission and updated cost data for both ac and dc system components. It also provides some provocative thoughts on how direct current transmission might be applied to better utilize and expand our nation`s increasingly stressed transmission assets.

  5. Engine piston having an insulating air gap

    DOE Patents [OSTI]

    Jarrett, Mark Wayne (Washington, IL); Hunold,Brent Michael (Apex, NC)

    2010-02-02

    A piston for an internal combustion engine has an upper crown with a top and a bottom surface, and a lower crown with a top and a bottom surface. The upper crown and the lower crown are fixedly attached to each other using welds, with the bottom surface of the upper crown and the top surface of the lower crown forming a mating surface. The piston also has at least one centrally located air gap formed on the mating surface. The air gap is sealed to prevent substantial airflow into or out of the air gap.

  6. Refractive Indices of Semiconductors from Energy gaps

    E-Print Network [OSTI]

    Tripathy, S K

    2015-01-01

    An empirical relation based on energy gap and refractive index data has been proposed in the present study to calculate the refractive index of semiconductors. The proposed model is then applied to binary as well as ternary semiconductors for a wide range of energy gap. Using the relation, dielectric constants of some III-V group semiconductors are calculated. The calculated values for different group of binary semiconductors, alkali halides and ternary semiconductors fairly agree with other calculations and known values over a wide range of energy gap. The temperature variation of refractive index for some binary semiconductors have been calculated.

  7. Chiral gap effect in curved space

    E-Print Network [OSTI]

    Antonino Flachi; Kenji Fukushima

    2015-05-29

    We discuss a new type of QCD phenomenon induced in curved space. In the QCD vacuum, a mass-gap of Dirac fermions is attributed to the spontaneous breaking of chiral symmetry. If the curvature is positive large, the chiral condensate melts but a chiral invariant mass-gap can still remain, which we name the chiral gap effect in curved space. This leads to decoupling of quark deconfinement which implies a view of black holes surrounded by a first-order QCD phase transition.

  8. Refractive Indices of Semiconductors from Energy gaps

    E-Print Network [OSTI]

    S. K. Tripathy

    2015-07-16

    An empirical relation based on energy gap and refractive index data has been proposed in the present study to calculate the refractive index of semiconductors. The proposed model is then applied to binary as well as ternary semiconductors for a wide range of energy gap. Using the relation, dielectric constants of some III-V group semiconductors are calculated. The calculated values for different group of binary semiconductors, alkali halides and ternary semiconductors fairly agree with other calculations and known values over a wide range of energy gap. The temperature variation of refractive index for some binary semiconductors have been calculated.

  9. Regional Transmission Projects: Finding Solutions

    SciTech Connect (OSTI)

    The Keystone Center

    2005-06-15

    The Keystone Center convened and facilitated a year-long Dialogue on "Regional Transmission Projects: Finding Solutions" to develop recommendations that will help address the difficult and contentious issues related to expansions of regional electric transmission systems that are needed for reliable and economic transmission of power within and across regions. This effort brought together a cross-section of affected stakeholders and thought leaders to address the problem with the collective wisdom of their experience and interests. Transmission owners sat at the table with consumer advocates and environmental organizations. Representatives from regional transmission organizations exchanged ideas with state and federal regulators. Generation developers explored common interests with public power suppliers. Together, the Dialogue participants developed consensus solutions about how to begin unraveling some of the more intractable issues surrounding identification of need, allocation of costs, and reaching consensus on siting issues that can frustrate the development of regional transmission infrastructure. The recommendations fall into three broad categories: 1. Recommendations on appropriate institutional arrangements and processes for achieving regional consensus on the need for new or expanded transmission infrastructure 2. Recommendations on the process for siting of transmission lines 3. Recommendations on the tools needed to support regional planning, cost allocation, and siting efforts. List of Dialogue participants: List of Dialogue Participants: American Electric Power American Transmission Company American Wind Energy Association California ISO Calpine Corporation Cinergy Edison Electric Institute Environmental Defense Federal Energy Regulatory Commission Great River Energy International Transmission Company ISO-New England Iowa Public Utility Board Kanner & Associates Midwest ISO National Association of Regulatory Utility Commissioners National Association of State Utility Consumer Advocates National Grid Northeast Utilities PA Office of Consumer Advocates Pacific Gas & Electric Corporation Pennsylvania Public Utility Commission PJM Interconnection The Electricity Consumers Resource Council U.S. Department of Energy US Department of the Interior Van Ness Feldman Western Interstate Energy Board Wind on the Wires Wisconsin Public Service Commission Xcel Energy

  10. EC Transmission Line Materials

    SciTech Connect (OSTI)

    Bigelow, Tim S

    2012-05-01

    The purpose of this document is to identify materials acceptable for use in the US ITER Project Office (USIPO)-supplied components for the ITER Electron cyclotron Heating and Current Drive (ECH&CD) transmission lines (TL), PBS-52. The source of material property information for design analysis shall be either the applicable structural code or the ITER Material Properties Handbook. In the case of conflict, the ITER Material Properties Handbook shall take precedence. Materials selection, and use, shall follow the guidelines established in the Materials Assessment Report (MAR). Materials exposed to vacuum shall conform to the ITER Vacuum Handbook. [Ref. 2] Commercial materials shall conform to the applicable standard (e.g., ASTM, JIS, DIN) for the definition of their grade, physical, chemical and electrical properties and related testing. All materials for which a suitable certification from the supplier is not available shall be tested to determine the relevant properties, as part of the procurement. A complete traceability of all the materials including welding materials shall be provided. Halogenated materials (example: insulating materials) shall be forbidden in areas served by the detritiation systems. Exceptions must be approved by the Tritium System and Safety Section Responsible Officers.

  11. The History of Cranfills Gap ISD 

    E-Print Network [OSTI]

    Rudd, Charla J

    2013-05-06

    afforded sufficient education, community members took risks financially to establish and maintain the school. The reform movement to standardize education at the dawn of the Industrial Revolution propelled Cranfills Gap into providing a local high school...

  12. Gap between jets at the LHC

    SciTech Connect (OSTI)

    Royon, Christophe

    2013-04-15

    We describe a NLL BFKL calculation implemented in the HERWIG MC of the gap between jets cross section, that represent a test of BFKL dynamics. We compare the predictions with recent measurements at the Tevatron and present predictions for the LHC. We also discuss the interesting process of looking for gap between jets in diffractive events when protons are detected in the ATLAS Forward Physics (AFP) detectors.

  13. The design, construction, and operation of long-distance high-voltage electricity transmission technologies.

    SciTech Connect (OSTI)

    Molburg, J. C.; Kavicky, J. A.; Picel, K. C.

    2008-03-03

    This report focuses on transmission lines, which operate at voltages of 115 kV and higher. Currently, the highest voltage lines comprising the North American power grid are at 765 kV. The grid is the network of transmission lines that interconnect most large power plants on the North American continent. One transmission line at this high voltage was built near Chicago as part of the interconnection for three large nuclear power plants southwest of the city. Lines at this voltage also serve markets in New York and New England, also very high demand regions. The large power transfers along the West Coast are generally at 230 or 500 kV. Just as there are practical limits to centralization of power production, there are practical limits to increasing line voltage. As voltage increases, the height of the supporting towers, the size of the insulators, the distance between conductors on a tower, and even the width of the right-of-way (ROW) required increase. These design features safely isolate the electric power, which has an increasing tendency to arc to ground as the voltage (or electrical potential) increases. In addition, very high voltages (345 kV and above) are subject to corona losses. These losses are a result of ionization of the atmosphere, and can amount to several megawatts of wasted power. Furthermore, they are a local nuisance to radio transmission and can produce a noticeable hum. Centralized power production has advantages of economies of scale and special resource availability (for instance, hydro resources), but centralized power requires long-distance transfers of power both to reach customers and to provide interconnections for reliability. Long distances are most economically served at high voltages, which require large-scale equipment and impose a substantial footprint on the corridors through which power passes. The most visible components of the transmission system are the conductors that provide paths for the power and the towers that keep these conductors at a safe distance from each other and from the ground and the natural and built environment. Common elements that are generally less visible (or at least more easily overlooked) include the maintained ROW along the path of the towers, access roads needed for maintenance, and staging areas used for initial construction that may be restored after construction is complete. Also visible but less common elements along the corridor may include switching stations or substations, where lines of similar or different voltages meet to transfer power.

  14. Technical Standards, MACCS2, Gap Analysis - May 3, 2004 | Department...

    Office of Environmental Management (EM)

    MACCS2, Gap Analysis - May 3, 2004 Technical Standards, MACCS2, Gap Analysis - May 3, 2004 May 3, 2004 Software Quality Assurance Improvement Plan: MACCS2 Gap Analysis The MACCS2...

  15. Technical Standards, ALOHA-Gap Analysis - May 3, 2004 | Department...

    Office of Environmental Management (EM)

    ALOHA-Gap Analysis - May 3, 2004 Technical Standards, ALOHA-Gap Analysis - May 3, 2004 May 3, 2004 DOE-EH-4.2.1.3-ALOHA-Gap Analysis, Software Quality Assurance Improvement Plan:...

  16. The Space Between: Superconductor Energy Gap Structures | The...

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

    energy gap-an energy range forbidden to electrons. CeCoIn5 is believed to have an energy-momentum structure with d-wave gap symmetry. This d-wave gap symmetry is shaped...

  17. THE PAL 5 STAR STREAM GAPS

    SciTech Connect (OSTI)

    Carlberg, R. G.; Hetherington, Nathan [Department of Astronomy and Astrophysics, University of Toronto, Toronto, ON M5S 3H4 (Canada); Grillmair, C. J., E-mail: carlberg@astro.utoronto.ca, E-mail: hetherington@astro.utoronto.ca, E-mail: carl@ipac.caltech.edu [Spitzer Science Center, 1200 E. California Blvd., Pasadena, CA 91125 (United States)

    2012-11-20

    Pal 5 is a low-mass, low-velocity-dispersion, globular cluster with spectacular tidal tails. We use the Sloan Digital Sky Survey Data Release 8 data to extend the density measurements of the trailing star stream to 23 deg distance from the cluster, at which point the stream runs off the edge of the available sky coverage. The size and the number of gaps in the stream are measured using a filter which approximates the structure of the gaps found in stream simulations. We find 5 gaps that are at least 99% confidence detections with about a dozen gaps at 90% confidence. The statistical significance of a gap is estimated using bootstrap resampling of the control regions on either side of the stream. The density minimum closest to the cluster is likely the result of the epicyclic orbits of the tidal outflow and has been discounted. To create the number of 99% confidence gaps per unit length at the mean age of the stream requires a halo population of nearly a thousand dark matter sub-halos with peak circular velocities above 1 km s{sup -1} within 30 kpc of the galactic center. These numbers are a factor of about three below cold stream simulation at this sub-halo mass or velocity but, given the uncertainties in both measurement and more realistic warm stream modeling, are in substantial agreement with the LCDM prediction.

  18. Energy Transmission and Infrastructure

    SciTech Connect (OSTI)

    Mathison, Jane

    2012-12-31

    The objective of Energy Transmission and Infrastructure Northern Ohio (OH) was to lay the conceptual and analytical foundation for an energy economy in northern Ohio that will: • improve the efficiency with which energy is used in the residential, commercial, industrial, agricultural, and transportation sectors for Oberlin, Ohio as a district-wide model for Congressional District OH-09; • identify the potential to deploy wind and solar technologies and the most effective configuration for the regional energy system (i.e., the ratio of distributed or centralized power generation); • analyze the potential within the district to utilize farm wastes to produce biofuels; • enhance long-term energy security by identifying ways to deploy local resources and building Ohio-based enterprises; • identify the policy, regulatory, and financial barriers impeding development of a new energy system; and • improve energy infrastructure within Congressional District OH-09. This objective of laying the foundation for a renewable energy system in Ohio was achieved through four primary areas of activity: 1. district-wide energy infrastructure assessments and alternative-energy transmission studies; 2. energy infrastructure improvement projects undertaken by American Municipal Power (AMP) affiliates in the northern Ohio communities of Elmore, Oak Harbor, and Wellington; 3. Oberlin, OH-area energy assessment initiatives; and 4. a district-wide conference held in September 2011 to disseminate year-one findings. The grant supported 17 research studies by leading energy, policy, and financial specialists, including studies on: current energy use in the district and the Oberlin area; regional potential for energy generation from renewable sources such as solar power, wind, and farm-waste; energy and transportation strategies for transitioning the City of Oberlin entirely to renewable resources and considering pedestrians, bicyclists, and public transportation as well as drivers in developing transportation policies; energy audits and efficiency studies for Oberlin-area businesses and Oberlin College; identification of barriers to residential energy efficiency and development of programming to remove these barriers; mapping of the solar-photovoltaic and wind-energy supply chains in northwest Ohio; and opportunities for vehicle sharing and collaboration among the ten organizations in Lorain County from the private, government, non-profit, and educational sectors. With non-grant funds, organizations have begun or completed projects that drew on the findings of the studies, including: creation of a residential energy-efficiency program for the Oberlin community; installation of energy-efficient lighting in Oberlin College facilities; and development by the City of Oberlin and Oberlin College of a 2.27 megawatt solar photovoltaic facility that is expected to produce 3,000 megawatt-hours of renewable energy annually, 12% of the College’s yearly power needs. Implementation of these and other projects is evidence of the economic feasibility and technical effectiveness of grant-supported studies, and additional projects are expected to advance to implementation in the coming years. The public has benefited through improved energydelivery systems and reduced energy use for street lighting in Elmore, Oak Harbor, and Wellington; new opportunities for assistance and incentives for residential energy efficiency in the Oberlin community; new opportunities for financial and energy savings through vehicle collaboration within Lorain County; and decreased reliance on fossil fuels and expanded production of renewable energy in the region. The dissemination conference and the summary report developed for the conference also benefited the public, but making the findings and recommendations of the regional studies broadly available to elected officials, city managers, educators, representatives of the private sector, and the general public.

  19. RAPID/BulkTransmission/Transmission Siting & Interconnection | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsourceBulkTransmission/Environment/Nevada < RAPID‎RAPID/BulkTransmission/Site Considerations <

  20. Two-particle quantum transmission

    E-Print Network [OSTI]

    Ron Folman

    2012-11-25

    Two-photon interference is a fundamental phenomenon in quantum mechanics and stands at the base of numerous experimental observations. Here another manifestation of this phenomenon is described, taking place at a Y junction. Specifically it is shown how the r^2+t^2 term which is behind previous observations of two-photon interference, may give rise to different states at a beam-splitter and different two-particle transmission coefficients at a Y junction. Different from previous descriptions of quantum transmission based on one-particle physics, the enhanced transmission described here is due to two-particle physics.

  1. Electrical transmission line diametrical retainer

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT); Fox, Joe (Spanish Fork, UT)

    2004-12-14

    The invention is a mechanism for retaining an electrical transmission line. In one embodiment of the invention it is a system for retaining an electrical transmission line within down hole components. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string. The system also includes a coaxial cable running between the first and second end of a drill pipe, the coaxial cable having a conductive tube and a conductive core within it. The invention allows the electrical transmission line to with stand the tension and compression of drill pipe during routine drilling cycles.

  2. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    building transmission to meet peak wind conditions during peak transmission usage periods, and the magnitude of curtailment may be small

  3. Summary of Gaps and Barriers for Implementing Residential Building...

    Energy Savers [EERE]

    Gaps and Barriers for Implementing Residential Building Energy Efficiency Strategies Summary of Gaps and Barriers for Implementing Residential Building Energy Efficiency Strategies...

  4. Code Gaps and Future Research Needs of Combustion Safety: Building...

    Energy Savers [EERE]

    Code Gaps and Future Research Needs of Combustion Safety: Building America Expert Meeting Update Code Gaps and Future Research Needs of Combustion Safety: Building America Expert...

  5. Bridging the Gap between Fundamental Physics and Chemistry and...

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

    Bridging the Gap between Fundamental Physics and Chemistry and Applied Models for HCCI Engines Bridging the Gap between Fundamental Physics and Chemistry and Applied Models for...

  6. Transmission eigenvalue distributions in highly conductive molecular junctions

    E-Print Network [OSTI]

    Bergfield, Justin P; Barr, Joshua D; Stafford, Charles A

    2012-01-01

    Transmission eigenvalue distributions in highly conductivesingle-molecule junction; transmission eigenchannels Openuniquely characterized by its transmission eigenvalues ? n .

  7. Transmission Services Product Pricing Validation

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

    and 09:00 PPT on the above effective date. On October 15, 2013, at 08:00 (PPT), Transmission Services will be updating the OASIS default product prices to reflect the 2014...

  8. Transmission Services Product Pricing Validation

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

    and 12:00 PPT on the above effective date. On October 1, 2015, at 11:00 (PPT), Transmission Services will be updating the OASIS default product prices to reflect the 2016...

  9. TRANSMISSION AND GENERATION INVESTMENT IN ...

    E-Print Network [OSTI]

    2015-03-04

    Mar 4, 2015 ... generation capacity by private firms in liberalized electricity markets. ... Electricity Markets, Network Expansion, Transmission Management. 1 ...... renewables: Using two-stage optimisation to evaluate flexibility and the cost of.

  10. Immunology of naturally transmissible tumours

    E-Print Network [OSTI]

    Siddle, Hannah V.; Kaufman, Jim

    2014-09-04

    understanding of the vertebrate immune response to allografts. Two naturally occurring contagious cancers are currently active in the animal kingdom, Canine Transmissible Venereal Tumour (CTVT) that spreads among dogs and Devil Facial Tumour Disease (DFTD) among...

  11. 2009 National Electric Transmission Congestion Study | Department...

    Energy Savers [EERE]

    Congestion Studies 2009 National Electric Transmission Congestion Study 2009 National Electric Transmission Congestion Study Section 216(a) of the Federal Power Act, as amended...

  12. 2006 National Electric Transmission Congestion Study Federal...

    Office of Environmental Management (EM)

    6 National Electric Transmission Congestion Study Federal Register Notice & Comments 2006 National Electric Transmission Congestion Study Federal Register Notice & Comments The...

  13. 2006 National Electric Transmission Congestion Study | Department...

    Office of Environmental Management (EM)

    6 National Electric Transmission Congestion Study 2006 National Electric Transmission Congestion Study Section 216(a) of the Federal Power Act, as amended by the Energy Policy Act...

  14. Interconnection-Wide Transmission Planning Initiative: Topic...

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

    State Agency Input Regarding Electric Resource and Transmission Planning in the Texas Interconnection Interconnection-Wide Transmission Planning Initiative: Topic B, State Agency...

  15. Exploring the Business Link Opportunity: Transmission & Clean...

    Office of Environmental Management (EM)

    Exploring the Business Link Opportunity: Transmission & Clean Energy Development in the West Exploring the Business Link Opportunity: Transmission & Clean Energy Development in the...

  16. Transmission Line MTF: Magnetized Target Fusion

    E-Print Network [OSTI]

    Transmission Line MTF: Magnetized Target Fusion Initial target: preheated & magnetized Subsequent for the FRC. Abstract Block Diagram theta coil transmission line Bias cap. bank maincapacitor inductor PI cap

  17. Transmission Reassignment Reporting Requirement - April 2, 2014

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

    Interconnection Notices Rates Standards of Conduct Tariff TF Web Based Training Transmission Reassignment Reporting Requirement This notice serves as a reminder to transmission...

  18. Transmission/Nepa Database | Open Energy Information

    Open Energy Info (EERE)

    Nepa Database < Transmission Jump to: navigation, search NepaHeader.png Transmission Dashboard Permitting Atlas Compare States Arizona California Colorado Idaho Montana Nevada New...

  19. Transmission Eigenvalues in Inverse Scattering Theory

    E-Print Network [OSTI]

    Title: Transmission Eigenvalues in Inverse Scattering Theory Abstract: The transmission eigenvalue problem is a new class of eigenvalue problems that has

  20. WEYL ASYMPTOTICS OF THE TRANSMISSION EIGENVALUES ...

    E-Print Network [OSTI]

    2014-09-02

    plex internal transmission eigenvalues when the domain is a ball and the index ... formulas for the counting function of the real Interior Transmission Eigenvalues.

  1. DAMAGE DETECTION STRATEGIES IN STRUCTURAL HEALTH MONITORING OF OVERHEAD POWER TRANSMISSION SYSTEM

    E-Print Network [OSTI]

    Boyer, Edmond

    " refers to the low voltage part of T&D System that connects substations and consumers' switchgear boxes or underground), insulators, vibration dampers (e.g. Stockbridge type), switchgears and transformers. Due

  2. Dynamics of regeneration gaps following harvest of aspen stands

    E-Print Network [OSTI]

    Macdonald, Ellen

    tremuloides Michx.). The pattern of gap development over time was determined from analysis of air photographs

  3. Multi-gap superfluidity in nuclear matter

    E-Print Network [OSTI]

    A. I. Akhiezer; A. A. Isayev; S. V. Peletminsky; A. A. Yatsenko

    2000-12-25

    It is shown that under lowering density or temperature a nucleon Fermi superfluid can undergo a phase transition to a new superfluid state corresponding to superposition of states with singlet-triplet (ST) and triplet-singlet (TS) pairing of nucleons (in spin and isospin spaces). Such states arise as a result of branching from one-gap solution of the self-consistent equations, describing ST pairing of nucleons. The density and temperature dependence of the order parameters for new two-gap solutions is determined in the model with Skyrme effective forces.

  4. Natural Gas Engine Development Gaps (Presentation)

    SciTech Connect (OSTI)

    Zigler, B.T.

    2014-03-01

    A review of current natural gas vehicle offerings is presented for both light-duty and medium- and heavy-duty applications. Recent gaps in the marketplace are discussed, along with how they have been or may be addressed. The stakeholder input process for guiding research and development needs via the Natural Gas Vehicle Technology Forum (NGVTF) to the U.S. Department of Energy and the California Energy Commission is reviewed. Current high-level natural gas engine development gap areas are highlighted, including efficiency, emissions, and the certification process.

  5. Homolumo gap from dynamical energy levels

    SciTech Connect (OSTI)

    Andric, I.; Jonke, L.; Jurman, D.; Nielsen, H. B.

    2009-11-15

    We introduce a dynamical matrix model where the matrix is interpreted as a Hamiltonian representing interaction of a bosonic system with a single fermion. We show how a system of second-quantized fermions influences the ground state of the whole system by producing a gap between the highest eigenvalue of the occupied single-fermion states and the lowest eigenvalue of the unoccupied single-fermion states. We describe the development of the gap in both the strong and weak coupling regimes, while for the intermediate coupling strength we expect formation of homolumo kinks.

  6. TRANSMISSION EIGENVALUES LASSI PAIVARINTA AND JOHN SYLVESTER

    E-Print Network [OSTI]

    Sylvester, John

    TRANSMISSION EIGENVALUES LASSI P¨AIV¨ARINTA AND JOHN SYLVESTER Abstract. The scattering of a time. A transmission eigenvalue is a wavenumber at which the scattering operator has a non-trivial kernel or cokernel that are not transmission eigenvalues, they have been studied for some time. Nevertheless, the existence of transmission

  7. Prudent behaviour accelerates disease transmission

    E-Print Network [OSTI]

    Scarpino, Samuel V; Hebert-Dufresne, Laurent

    2015-01-01

    Infectious diseases often spread faster near their peak than would be predicted given early data on transmission. Despite the commonality of this phenomena, there are no known general mechanisms able to cause an exponentially spreading dis- ease to begin spreading faster. Indeed most features of real world social networks, e.g. clustering1,2 and community structure3, and of human behaviour, e.g. social distancing4 and increased hygiene5, will slow disease spread. Here, we consider a model where individuals with essential societal roles-e.g. teachers, first responders, health-care workers, etc.- who fall ill are replaced with healthy individuals. We refer to this process as relational exchange. Relational exchange is also a behavioural process, but one whose effect on disease transmission is less obvious. By incorporating this behaviour into a dynamic network model, we demonstrate that replacing individuals can accelerate disease transmission. Furthermore, we find that the effects of this process are trivial w...

  8. Gapped spin Hamiltonian motivated by quantum teleportation

    E-Print Network [OSTI]

    Ari Mizel

    2014-10-07

    We construct a Hamiltonian whose ground state encodes a time-independent emulation of quan- tum teleportation. We calculate properties of the Hamiltonian, using exact diagonalization and a mean-field theory, and argue that it has a gap. The system exhibits an illuminating relationship to the well-known AKLT (Affleck, Lieb, Kennedy and Tasaki) model.

  9. FINAL REPORT ON GDE GAP CELL

    SciTech Connect (OSTI)

    Herman, D.; Summers, W.; Danko, E.

    2009-09-28

    A project has been undertaken to develop an electrochemical cell and support equipment for evaluation of a gas diffusion electrode-based, narrow-electrolyte-gap anode for SO{sub 2} oxidation in the hydrogen production cycle of the hybrid sulfur (HyS) process. The project supported the HyS development program at the Savannah River National Lab (SRNL). The benefits of using a gas diffusion electrode in conjunction with the narrow anolyte gap are being determined through electrochemical polarization testing under a variety conditions, and by comparison to results produced by SRNL and others using anode technologies that have no anolyte gap. These test results indicate that the NGA cell has low resistance suitable for use in the HyS electrolyzer, exhibits good efficiency at high current densities compared to the direct feed HyS electrolyzer, and indicates robust performance in extended testing over 65 hours. Seepage episodes were mostly caused by port clogging, which can be mitigated in future designs through minor modifications to the hardware. Significant reductions in sulfur crossover have not yet been demonstrated in the NGA configuration compared to in-house direct feed testing, but corroborative sulfur layer analysis is as yet incomplete. Further testing in a single-pass anolyte configuration is recommended for complete evaluation of steady-state electrochemical efficiency and SO{sub 2} crossover in the narrow gap configuration.

  10. THE DYNAMICS OF STAR STREAM GAPS

    SciTech Connect (OSTI)

    Carlberg, R. G., E-mail: carlberg@astro.utoronto.ca [Department of Astronomy and Astrophysics, University of Toronto, Toronto, ON M5S 3H4 (Canada)

    2013-10-01

    A massive object crossing a narrow stream of stars orbiting in the halo of the galaxy induces velocity changes both along and transverse to the stream that can lead to the development of a visible gap. For a stream narrow relative to its orbital radius, the stream crossing time is sufficiently short that the impact approximation can be used to derive the changes in angular momenta and radial actions along the star stream. The epicyclic approximation is used to calculate the evolution of the density of the stream as it orbits around in a galactic potential. Analytic expressions are available for a point mass, however, the general expressions are easily numerically evaluated for perturbing objects with arbitrary density profiles. With a simple allowance for the velocity dispersion of the stream, moderately warm streams can be modeled. The predicted evolution agrees well with the outcomes of simulations of stellar streams for streams with widths up to 1% of the orbital radius of the stream. The angular momentum distribution within the stream shears out gaps with time, further reducing the visibility of streams, although the size of the shear effect requires more detailed simulations that account for the creation of the stream. An illustrative model indicates that shear will set a lower limit of a few times the stream width for the length of gaps that persist. In general, the equations are useful for dynamical insights into the development of stream gaps and their measurement.

  11. SHEEP MOUNTAIN URANIUM PROJECT CROOKS GAP, WYOMING

    E-Print Network [OSTI]

    SHEEP MOUNTAIN URANIUM PROJECT CROOKS GAP, WYOMING US EPA Project Meeting April 7 2011April 7, 2011/Titan Uranium, VP Development · Deborah LebowAal/EPA Region 8 Air Program Introduction to Titan Uranium USA;PROJECT OVERVIEW ·Site Location·Site Location ·Fremont , Wyoming ·Existing Uranium Mine Permit 381C

  12. Spark gap device for precise switching

    DOE Patents [OSTI]

    Boettcher, Gordon E. (Albuquerque, NM)

    1984-01-01

    A spark gap device for precise switching of an energy storage capacitor into an exploding bridge wire load is disclosed. Niobium electrodes having a melting point of 2,415 degrees centrigrade are spaced apart by an insulating cylinder to define a spark gap. The electrodes are supported by conductive end caps which, together with the insulating cylinder, form a hermetically sealed chamber filled with an inert, ionizable gas, such as pure xenon. A quantity of solid radioactive carbon-14 within the chamber adjacent the spark gap serves as a radiation stabilizer. The sides of the electrodes and the inner wall of the insulating cylinder are spaced apart a sufficient distance to prevent unwanted breakdown initiation. A conductive sleeve may envelop the outside of the insulating member from the midpoint of the spark gap to the cap adjacent the cathode. The outer metallic surfaces of the device may be coated with a hydrogen-impermeable coating to lengthen the shelf life and operating life of the device. The device breaks down at about 1,700 volts for input voltage rates up to 570 volts/millisecond and allows peak discharge currents of up to 3,000 amperes from a 0.3 microfarad energy storage capacitor for more than 1,000 operations.

  13. Spark gap device for precise switching

    DOE Patents [OSTI]

    Boettcher, G.E.

    1984-10-02

    A spark gap device for precise switching of an energy storage capacitor into an exploding bridge wire load is disclosed. Niobium electrodes having a melting point of 2,415 degrees centigrade are spaced apart by an insulating cylinder to define a spark gap. The electrodes are supported by conductive end caps which, together with the insulating cylinder, form a hermetically sealed chamber filled with an inert, ionizable gas, such as pure xenon. A quantity of solid radioactive carbon-14 within the chamber adjacent the spark gap serves as a radiation stabilizer. The sides of the electrodes and the inner wall of the insulating cylinder are spaced apart a sufficient distance to prevent unwanted breakdown initiation. A conductive sleeve may envelop the outside of the insulating member from the midpoint of the spark gap to the cap adjacent the cathode. The outer metallic surfaces of the device may be coated with a hydrogen-impermeable coating to lengthen the shelf life and operating life of the device. The device breaks down at about 1,700 volts for input voltage rates up to 570 volts/millisecond and allows peak discharge currents of up to 3,000 amperes from a 0.3 microfarad energy storage capacitor for more than 1,000 operations. 3 figs.

  14. Chiral plasmon in gapped Dirac systems

    E-Print Network [OSTI]

    Kumar, Anshuman; Fung, Kin Hung; Hanson, George; Fang, Nicholas X; Low, Tony

    2015-01-01

    We study the electromagnetic response and surface electromagnetic modes in a generic gapped Dirac material under pumping with circularly polarized light. The valley imbalance due to pumping leads to a net Berry curvature, giving rise to a finite transverse conductivity. We discuss the appearance of nonreciprocal chiral edge modes, their hybridization and waveguiding in a nanoribbon geometry, and giant polarization rotation in nanoribbon arrays.

  15. Analysis of plasma-magnetic photonic crystal with a tunable band gap

    SciTech Connect (OSTI)

    Mehdian, H.; Mohammadzahery, Z.; Hasanbeigi, A. [Department of Physics and Plasma Research Institute of Tarbiat Moallem University, 49 Dr Mofatteh Avenue, Tehran 15614 (Iran, Islamic Republic of)

    2013-04-15

    In this paper, electromagnetic wave propagation through the one-dimensional plasma-magnetic photonic crystal in the presence of external magnetic field has been analyzed. The dispersion relation, transmission and reflection coefficients have been obtained by using the transfer matrix method. It is investigated how photonic band gap of photonic crystals will be tuned when both dielectric function {epsilon} and magnetic permeability {mu} of the constitutive materials, depend on applied magnetic field. This is shown by one dimensional photonic crystals consisting of plasma and ferrite material layers stacked alternately.

  16. The role of transmission investment in the coordination between generation and transmission

    E-Print Network [OSTI]

    Boyer, Edmond

    1 The role of transmission investment in the coordination between generation and transmission Abstract This paper examines how transmission coordinates with generation to the long term in a liberalized generation and transmission of electricity into distinct modules. The governance structure of transmission

  17. Life-cycle Environmental Inventory of Passenger Transportation in the United States

    E-Print Network [OSTI]

    Chester, Mikhail V

    2008-01-01

    and  substation  (electricity  transmission  system  for For  electricity, transmission and distribution  loses are 32 – Rail Electricity Precombustion and Transmission and 

  18. WHY DO DIFFERENCES BETWEEN STATE-MEASURED ACHIEVEMENT GAPS AND NATIONALLY-MEASURED ACHIEVEMENT GAPS EXIST?

    E-Print Network [OSTI]

    Courtney, Christina Leigh

    2014-08-31

    of difference, the differential quotient, is determined. For the purposes of this dissertation, I calculated the reported achievement gaps between white and black fourth graders for the years 2005, 2007, and 2009 on the individual state reading and math...

  19. Power superconducting power transmission cable

    DOE Patents [OSTI]

    Ashworth, Stephen P. (Cambridge, GB)

    2003-01-01

    The present invention is for a compact superconducting power transmission cable operating at distribution level voltages. The superconducting cable is a conductor with a number of tapes assembled into a subconductor. These conductors are then mounted co-planarly in an elongated dielectric to produce a 3-phase cable. The arrangement increases the magnetic field parallel to the tapes thereby reducing ac losses.

  20. SYSTEMS BIOLOGY Accurate information transmission

    E-Print Network [OSTI]

    Tsimring, Lev S.

    SYSTEMS BIOLOGY Accurate information transmission through dynamic biochemical signaling networks) and variability in cellular states (extrinsic noise) degrade information transmitted through signaling networks-induced information loss. In the extracellular signal­regulated kinase (ERK), calcium (Ca2+ ), and nuclear factor

  1. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    in Transmission Service. ” Washington, D.C. : Federal EnergyNational Transmission Grid Study. Washington, D.C. : U.S.California Transmission Options Study NTAC - 2A Submarine DC

  2. Codoped direct-gap semiconductor scintillators

    DOE Patents [OSTI]

    Derenzo, Stephen Edward (Pinole, CA); Bourret-Courchesne, Edith (Berkeley, CA); Weber, Marvin J. (Danville, CA); Klintenberg, Mattias K. (Berkeley, CA)

    2008-07-29

    Fast, bright inorganic scintillators at room temperature are based on radiative electron-hole recombination in direct-gap semiconductors, e.g. CdS and ZnO. The direct-gap semiconductor is codoped with two different impurity atoms to convert the semiconductor to a fast, high luminosity scintillator. The codopant scheme is based on dopant band to dopant trap recombination. One dopant provides a significant concentration of carriers of one type (electrons or holes) and the other dopant traps carriers of the other type. Examples include CdS:In,Te; CdS:In,Ag; CdS:In,Na; ZnO:Ga,P; ZnO:Ga,N; ZnO:Ga,S; and GaN:Ge,Mg.

  3. Dynamically Generated Mott Gap from Holography

    SciTech Connect (OSTI)

    Edalati, Mohammad; Leigh, Robert G.; Phillips, Philip W.

    2011-03-04

    In the fermionic sector of top-down approaches to holographic systems, one generically finds that the fermions are coupled to gravity and gauge fields in a variety of ways, beyond minimal coupling. In this Letter, we take one such interaction--a Pauli, or dipole, interaction--and study its effects on fermion correlators. We find that this interaction modifies the fermion spectral density in a remarkable way. As we change the strength of the interaction, we find that spectral weight is transferred between bands, and beyond a critical value, a gap emerges in the fermion density of states. A possible interpretation of this bulk interaction then is that it drives the dynamical formation of a (Mott) gap, in the absence of continuous symmetry breaking.

  4. Chemical potential and the gap equation

    E-Print Network [OSTI]

    Huan Chen; Wei Yuan; Lei Chang; Yu-Xin Liu; Thomas Klahn; Craig D. Roberts

    2008-07-17

    In general the kernel of QCD's gap equation possesses a domain of analyticity upon which the equation's solution at nonzero chemical potential is simply obtained from the in-vacuum result through analytic continuation. On this domain the single-quark number- and scalar-density distribution functions are mu-independent. This is illustrated via two models for the gap equation's kernel. The models are alike in concentrating support in the infrared. They differ in the form of the vertex but qualitatively the results are largely insensitive to the Ansatz. In vacuum both models realise chiral symmetry in the Nambu-Goldstone mode and in the chiral limit, with increasing chemical potential, exhibit a first-order chiral symmetry restoring transition at mu~M(0), where M(p^2) is the dressed-quark mass function. There is evidence to suggest that any associated deconfinement transition is coincident and also of first-order.

  5. Codoped direct-gap semiconductor scintillators

    DOE Patents [OSTI]

    Derenzo, Stephen E.; Bourret-Courchesne, Edith; Weber, Marvin J.; Klintenberg, Mattias K.

    2006-05-23

    Fast, bright inorganic scintillators at room temperature are based on radiative electron-hole recombination in direct-gap semiconductors, e.g. CdS and ZnO. The direct-gap semiconductor is codoped with two different impurity atoms to convert the semiconductor to a fast, high luminosity scintillator. The codopant scheme is based on dopant band to dopant trap recombination. One dopant provides a significant concentration of carriers of one type (electrons or holes) and the other dopant traps carriers of the other type. Examples include CdS:In,Te; CdS:In,Ag; CdS:In,Na; ZnO:Ga,P; ZnO:Ga,N; ZnO:Ga,S; and GaN:Ge,Mg.

  6. Tax Credits, Rebates & Savings | Department of Energy

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

    Utility Savings Category: Fuel Cells, Photovoltaics Application Filling Requirements for Transmission Line and Substation Construction Projects (Wisconsin) This page describes...

  7. Tax Credits, Rebates & Savings | Department of Energy

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

    Savings Category: Fuel Cells, Photovoltaics Application Filling Requirements for Transmission Line and Substation Construction Projects (Wisconsin) This page describes...

  8. Enabling States and Localities to Improve Energy Assurance and...

    Office of Environmental Management (EM)

    our Nation's energy infrastructure - a complex network of interconnected producers, pipelines, transmission and distribution lines, electricity substations, operational and...

  9. A CRITICAL REVIEW OF WIND TRANSMISSION COST ESTIMATES FROM MAJOR TRANSMISSION PLANNING EFFORTS

    E-Print Network [OSTI]

    Mills, Andrew; Wiser, Ryan; Porter, Kevin

    2007-01-01

    A CRITICAL REVIEW OF WIND TRANSMISSION COST ESTIMATES FROMof establishing a wind transmission cost adder with respectthat involve wind and divide the cost by the relative share

  10. Bonneville Power Administration Transmission System Vegetation Management Program - Final Environmental Impact Statement

    SciTech Connect (OSTI)

    N /A

    2000-06-23

    Bonneville is responsible for maintaining a network of 24,000 kilometers (km) or 15,000 miles (mi.) of electric transmission lines and 350 substations in a region of diverse vegetation. This vegetation can interfere with electric power flow, pose safety problems for us and the public, and interfere with our ability to maintain these facilities. We need to (1) keep vegetation away from our electric facilities; (2) increase our program efficiency and consistency; (3) review herbicide use (under increased public scrutiny); and (4) maximize the range of tools we can use while minimizing environmental impact (Integrated Vegetation Management). This Final Environmental Impact Statement (FEIS) establishes Planning Steps for managing vegetation for specific projects (to be tiered to this Environmental Impact Statement (EIS)). In addition to No Action (current practice), alternatives are presented for Rights-of-way, Electric Yards, and Non-electric Facilities (landscaping, work yards). Four vegetation control methods are analyzed manual, mechanical, herbicide, and biological. Also evaluated are 23 herbicide active ingredients and 4 herbicide application techniques (spot, localized, broadcast, and aerial). For rights-of-way, we consider three sets of alternatives: alternative management approaches (time-driven or establishing low-growing plant communities); alternative method packages; and, if herbicides are in a methods package, alternative vegetation selections (noxious weeds, deciduous, or any vegetation). For electric yards, one herbicide-use alternative is considered. For non-electric facilities, two method package alternatives are considered. For rights-of-way, the environmentally preferred alternative(s) would use manual, mechanical, and biological control methods, as well as spot and localized herbicide applications for noxious and deciduous plant species; the BPA-preferred alternative(s) would add broadcast and aerial herbicide applications, and would use herbicides on any vegetation. Both would favor a management approach that fosters low-growing plant communities.

  11. Direct band gap narrowing in highly doped Ge

    E-Print Network [OSTI]

    Han, Zhaohong

    Direct band gap narrowing in highly doped n-type Ge is observed through photoluminescence measurements by determining the spectrum peak shift. A linear relationship between the direct band gap emission and carrier concentration ...

  12. Substrate-induced band gap opening in epitaxial graphene

    E-Print Network [OSTI]

    2008-01-01

    H.A. Electronic states of graphene nanoribbons studied withS.G. Louie. Energy gaps in graphene nanoribbons. Phys. Rev.band-gap engineering of graphene nanoribbons. Phys. Rev.

  13. Vehicle Codes and Standards: Overview and Gap Analysis

    SciTech Connect (OSTI)

    Blake, C.; Buttner, W.; Rivkin, C.

    2010-02-01

    This report identifies gaps in vehicle codes and standards and recommends ways to fill the gaps, focusing on six alternative fuels: biodiesel, natural gas, electricity, ethanol, hydrogen, and propane.

  14. To Bridge LEDs' Green Gap, Scientists Think Small

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

    To Bridge LEDs' Green Gap, Scientists Think Small To Bridge LEDs' Green Gap, Scientists Think Small Nanostructures Half a DNA Strand-Wide Show Promise for Efficient LEDs April 4,...

  15. Minding the Gap Makes for More Efficient Solar Cells

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

    Minding the Gap Makes for More Efficient Solar Cells Minding the Gap Makes for More Efficient Solar Cells Print Thursday, 19 December 2013 11:01 Using novel materials to develop...

  16. Substrate-Induced Band-Gap Opening in Epitaxial Graphene

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

    Substrate-Induced Band-Gap Opening in Epitaxial Graphene Substrate-Induced Band-Gap Opening in Epitaxial Graphene Print Wednesday, 26 March 2008 00:00 Prospective challengers to...

  17. Coordination of Transmission Line Transfer Capabilities

    E-Print Network [OSTI]

    Coordination of Transmission Line Transfer Capabilities Final Project Report Power Systems since 1996 PSERC #12;Power Systems Engineering Research Center Coordination of Transmission Line Industry Representative Richard Goddard Portland General Electric Research Team Students Yuan Li Yonghong

  18. Wireless power transmission for medical applications

    E-Print Network [OSTI]

    Payne, Joshua E.

    We studied the wireless power transmission capabilities of microwave through human skin-tissue. Microwave transmission through simulated human skins was tested with rectenna array as a power receiver located under the ...

  19. Transmission Expansion Planning with Re-design

    E-Print Network [OSTI]

    2010-05-17

    Expanding an electrical transmission network requires heavy investments that ... would be too complex to handle, electrical transmission and energy genera- ... Our new modelling introduces more flexibility and is general, in the sense that it ...

  20. Transmission

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavings forTitleJulyAmyDepartment ofMelissa~

  1. Midwest Transmission Workshop II Summary

    SciTech Connect (OSTI)

    Kevin Bryan

    2002-12-05

    OAK-B135 After introductions of all participants, Abby Arnold, RESOLVE, reviewed the purpose of the meeting and the agenda. The purpose of the workshop was to share the results of the Midwest Independent System Operator (MISO) scenario development for wind and other fuel sources and the corresponding implications for transmission throughout the MISO control area. The workshop agenda is included in Attachment A.

  2. Analytic bounds on transmission probabilities

    E-Print Network [OSTI]

    Boonserm, Petarpa

    2009-01-01

    We develop some new analytic bounds on transmission probabilities (and the related reflection probabilities and Bogoliubov coefficients) for generic one-dimensional scattering problems. To do so we rewrite the Schrodinger equation for some complicated potential whose properties we are trying to investigate in terms of some simpler potential whose properties are assumed known, plus a (possibly large) "shift" in the potential. Doing so permits us to extract considerable useful information without having to exactly solve the full scattering problem.

  3. Energy Transmission | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum12, 2015 Infographic courtesyEducationNevadaSessionToo! |October 4,Transmission

  4. Transmission and Generation Investment in Electricity Markets

    E-Print Network [OSTI]

    Mar 4, 2015 ... Transmission and Generation Investment in Electricity Markets: The Effects of Market Splitting and Network Fee Regimes.

  5. Washington/Transmission | Open Energy Information

    Open Energy Info (EERE)

    Avista, Pacificorp, Puget Sound Energy, Tacoma Public Utilities, Bonneville Power Administration, Columbia Grid, Northern Tier Transmission Group, and Seattle City...

  6. Intelligent Assistants for Filling Critical Gaps in GIS

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Intelligent Assistants for Filling Critical Gaps in GIS A Research Program April 1992 David Lanter, Intelligent Assistants for Filling Critical Gaps In GIS, was sponsored by Southern California Edison Company: · An analysis of critical gaps in current geographic information systems (GIS) that impede their use for spatial

  7. BPA, Electric Transmission Overview, October 2012

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

    B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Electric Transmission Overview Electric transmission Electric transmission is the process by which large amounts of...

  8. July 2, 2007 1 Optimal Transmission Switching

    E-Print Network [OSTI]

    Mangasarian, Olvi L.

    . INTRODUCTION n large electric networks, transmission is traditionally characterized as a static systemJuly 2, 2007 1 Optimal Transmission Switching Emily Bartholomew Fisher, Student Member, IEEE an optimal generation dispatch and transmission topology to meet a specific inflexible load as a mixed

  9. Smart Grid Application of Optimal Transmission Switching

    E-Print Network [OSTI]

    Ferris, Michael C.

    ;6 Introduction continued Electric Transmission Network Flow Problem Optimal Power Flow (OPF) AlternatingSmart Grid Application of Optimal Transmission Switching By, Kory W. Hedman, et al.* University (Professor, UC Berkeley) #12;2 Motivation Co-optimize transmission topology and generation dispatch

  10. Chopper Modulation Improves OTA Information Transmission

    E-Print Network [OSTI]

    Maryland at College Park, University of

    Chopper Modulation Improves OTA Information Transmission Nicole M Nelson and Pamela A Abshire 20742 Email: {nmnelson,pabshire}@umd.edu Abstract-- We have investigated information transmission- ing the channel capacity for transmission of analog signals through an OTA using an information

  11. Transmission eigenvalues for degenerate and singular cases

    E-Print Network [OSTI]

    Sylvester, John

    Transmission eigenvalues for degenerate and singular cases Valery Serov and John Sylvester Abstract We prove the existence of infinitely many real interior transmission eigenvalues for positive transmission eigenvalues. We will prove that positive values of the square of the wavenumber k2 for which

  12. Social transmission of face preferences among humans

    E-Print Network [OSTI]

    Indiana University

    Social transmission of face preferences among humans Benedict C. Jones1,*, Lisa M. DeBruine1 researchers to propose that social transmission of mate preferences may influence sexual selection for male traits. Although it has been suggested that social transmission may also influence mate preferences

  13. Transmission Eigenvalues in One Dimension John Sylvester

    E-Print Network [OSTI]

    Sylvester, John

    Transmission Eigenvalues in One Dimension John Sylvester Abstract We show how to locate all the transmission eigenvalues for a one dimensional constant index of refraction on an interval. 1 Introduction #12;Whenever such a nontrivial pair exists, we say that k2 is an interior transmission eigenvalue

  14. Transmission consequences of coinfection: cytokines writ large?

    E-Print Network [OSTI]

    Transmission consequences of coinfection: cytokines writ large? Andrea L. Graham1 , Isabella M between- host transmission. Cytokines, immune signalling mol- ecules with a fundamental role-host transmission represents a major challenge in parasite ecology and applied biomedicine [1­5]. Co- infection (see

  15. Haykin Chapter 4 Baseband Pulse Transmission

    E-Print Network [OSTI]

    Al-Ghadhban, Samir

    1/30/2014 1 Haykin Chapter 4 Baseband Pulse Transmission EE571 Dr. Samir Alghadhban KFUPM 1 · In this chapter we study the transmission of digital data (of whatever origin) over a baseband channel. · Baseband transmission of digital data requires the use of a lowpass channel with a bandwidth large enough

  16. A Distributed System for Cooperative MIMO Transmissions

    E-Print Network [OSTI]

    Kalyanaraman, Shivkumar

    a distributed system for facilitating cooperative MIMO transmissions in networks without multiple antenna diversity can be leveraged at the network, link or physical layers to provide energy efficient transmissions for reliable low-power transmissions. The rest of this paper is organized as follows: the proposed system

  17. Comments of New England Electric Transmission Corporation on...

    Office of Environmental Management (EM)

    out of time and comments of New England Electric Transmission Corporation, New England Hydro-Transmission Electric Company, Inc. and New England Hydro-Transmission Corporation and...

  18. Idaho/Transmission/State Regulations | Open Energy Information

    Open Energy Info (EERE)

    direct authority to site high-voltage transmission lines is limited to transmission lines located within National Interstate Electric Transmission Corridors (NIETC); however,...

  19. Electricity transmission congestion costs: A review of recent reports

    E-Print Network [OSTI]

    Lesieutre, Bernard C.; Eto, Joseph H.

    2003-01-01

    Commission). 2001. Electric Transmission Constraint Study.by the Office of Electric Transmission and Distribution ofCommission (FERC), Electric Transmission Constraint Study (

  20. 2009 Electric Transmission Congestion Study | Department of Energy

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

    2009 Electric Transmission Congestion Study 2009 Electric Transmission Congestion Study The 2009 National Congestion Electric Transmission Study, required by section 216(a) of the...

  1. Transmission Project Reporting FPA 216h | Department of Energy

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

    Information Center Reporting Transmission Project Reporting FPA 216h Transmission Project Reporting FPA 216h View the searchable database of all transmission projects...

  2. Oahu Wind Integration and Transmission Study (OWITS): Hawaiian...

    Office of Environmental Management (EM)

    Oahu Wind Integration and Transmission Study (OWITS): Hawaiian Islands Transmission Interconnection Project Oahu Wind Integration and Transmission Study (OWITS): Hawaiian Islands...

  3. Modeling Interregional Transmission Congestion in the National Energy Modeling System

    E-Print Network [OSTI]

    Gumerman, Etan; Chan, Peter; Lesieutre, Bernard; Marnay, Chris; Wang, Juan

    2006-01-01

    NEMS does not track electricity transmission within regions,international electricity transmission with Canada andwhen solving for electricity transmission, the coal plants

  4. Electricity transmission congestion costs: A review of recent reports

    E-Print Network [OSTI]

    Lesieutre, Bernard C.; Eto, Joseph H.

    2003-01-01

    LBNL-54049 Electricity Transmission Congestion Costs: Astate of U.S. electricity transmission system and whether itof the U.S. electricity transmission system for enabling

  5. Allocating Transmission to Mitigate Market Power in Electricity Markets

    E-Print Network [OSTI]

    Gilbert, Richard; Neuhoff, Karsten; Newberry, David

    2002-01-01

    A. In Europe most electricity transmission auctions areare possible on every electricity transmission link in thepassive transmission rights in congested electricity systems

  6. Draft environmental impact statement for construction and operation of the proposed Bangor Hydro-Electric Company`s second 345-kV transmission tie line to New Brunswick

    SciTech Connect (OSTI)

    1993-10-01

    This Draft Environmental Impact Statement (DEIS) was prepared by the US Department of Energy (US DOE). The proposed action is the issuance of Presidential Permit PP-89 by DOE to Bangor Hydro-Electric Company to construct and operate a new international transmission line interconnection to New Brunswick, Canada that would consist of an 83.8 mile (US portion), 345-kilovolt (kV) alternating current transmission line from the US-Canadian border at Baileyville, Maine to an existing substation at Orrington, Maine. The principal environmental impacts of the construction and operation of the transmission line would be incremental in nature and would include the conversion of forested uplands (mostly commercial timberlands) and wetlands to right-of-way (small trees, shrubs, and herbaceous vegetation). The proposed line would also result in localized minor to moderate visual impacts and would contribute a minor incremental increase in the exposure of some individuals to electromagnetic fields. This DEIS documents the purpose and need for the proposed action, describes the proposed action and alternatives considered and provides a comparison of the proposed and alternatives routes, and provides detailed information on analyses of the environmental consequences of the proposed action and alternatives, as well as mitigative measures to minimize impacts.

  7. Integrated Transmission and Distribution Control

    SciTech Connect (OSTI)

    Kalsi, Karanjit; Fuller, Jason C.; Tuffner, Francis K.; Lian, Jianming; Zhang, Wei; Marinovici, Laurentiu D.; Fisher, Andrew R.; Chassin, Forrest S.; Hauer, Matthew L.

    2013-01-16

    Distributed, generation, demand response, distributed storage, smart appliances, electric vehicles and renewable energy resources are expected to play a key part in the transformation of the American power system. Control, coordination and compensation of these smart grid assets are inherently interlinked. Advanced control strategies to warrant large-scale penetration of distributed smart grid assets do not currently exist. While many of the smart grid technologies proposed involve assets being deployed at the distribution level, most of the significant benefits accrue at the transmission level. The development of advanced smart grid simulation tools, such as GridLAB-D, has led to a dramatic improvement in the models of smart grid assets available for design and evaluation of smart grid technology. However, one of the main challenges to quantifying the benefits of smart grid assets at the transmission level is the lack of tools and framework for integrating transmission and distribution technologies into a single simulation environment. Furthermore, given the size and complexity of the distribution system, it is crucial to be able to represent the behavior of distributed smart grid assets using reduced-order controllable models and to analyze their impacts on the bulk power system in terms of stability and reliability. The objectives of the project were to: • Develop a simulation environment for integrating transmission and distribution control, • Construct reduced-order controllable models for smart grid assets at the distribution level, • Design and validate closed-loop control strategies for distributed smart grid assets, and • Demonstrate impact of integrating thousands of smart grid assets under closed-loop control demand response strategies on the transmission system. More specifically, GridLAB-D, a distribution system tool, and PowerWorld, a transmission planning tool, are integrated into a single simulation environment. The integrated environment allows the load flow interactions between the bulk power system and end-use loads to be explicitly modeled. Power system interactions are modeled down to time intervals as short as 1-second. Another practical issue is that the size and complexity of typical distribution systems makes direct integration with transmission models computationally intractable. Hence, the focus of the next main task is to develop reduced-order controllable models for some of the smart grid assets. In particular, HVAC units, which are a type of Thermostatically Controlled Loads (TCLs), are considered. The reduced-order modeling approach can be extended to other smart grid assets, like water heaters, PVs and PHEVs. Closed-loop control strategies are designed for a population of HVAC units under realistic conditions. The proposed load controller is fully responsive and achieves the control objective without sacrificing the end-use performance. Finally, using the T&D simulation platform, the benefits to the bulk power system are demonstrated by controlling smart grid assets under different demand response closed-loop control strategies.

  8. Distortion-transmission trade-off in real-time transmission of Gauss-Markov sources

    E-Print Network [OSTI]

    Mahajan, Aditya

    Distortion-transmission trade-off in real-time transmission of Gauss-Markov sources Jhelum.mahajan@mcgill.ca Abstract--The problem of optimal real-time transmission of a Gauss-Markov source under constraints on the expected number of transmissions is considered. This setup is motivated by applica- tions where

  9. Real Time Voice Transmission Darshana Shah Real Time Voice transmission over Wireless medium using

    E-Print Network [OSTI]

    Yu, Chansu

    to 300+ MHz Receiver #12;Real Time Voice Transmission Darshana Shah - 3 - LFTX -- DC-30 MHz TransmitterReal Time Voice Transmission Darshana Shah - 1 - Real Time Voice transmission over Wireless medium Yu 06/07/2009 #12;Real Time Voice Transmission Darshana Shah - 2 - Abstract My project is to transmit

  10. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    Generation and Transmission and Western Area Power Administration Clean and Diversified Energy Advisory Committee (CDEAC) Transmission Task Force NorthWestern Energy ElectricGeneration and Transmission and Western Area Power Administration Clean and Diversified Energy Advisory Committee (CDEAC) Transmission Task Force NorthWestern Energy Electric

  11. NREL: Transmission Grid Integration - Transmission Planning and Analysis

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTS -BeingFutureResearch StaffTransmission

  12. Quantum chaos and thermalization in gapped systems

    SciTech Connect (OSTI)

    Rigol, Marcos [Department of Physics, Georgetown University, Washington, DC 20057 (United States); Santos, Lea F. [Department of Physics, Yeshiva University, New York, New York 10016 (United States)

    2010-07-15

    We investigate the onset of thermalization and quantum chaos in finite one-dimensional gapped systems of hard-core bosons. Integrability in these systems is broken by next-nearest-neighbor repulsive interactions, which also generate a superfluid to insulator transition. By employing full exact diagonalization, we study chaos indicators and few-body observables. We show that with increasing system size, chaotic behavior is seen over a broader range of parameters and, in particular, deeper into the insulating phase. Concomitantly, we observe that, as the system size increases, the eigenstate thermalization hypothesis extends its range of validity inside the insulating phase and is accompanied by the thermalization of the system.

  13. Turbine blade tip gap reduction system

    DOE Patents [OSTI]

    Diakunchak, Ihor S.

    2012-09-11

    A turbine blade sealing system for reducing a gap between a tip of a turbine blade and a stationary shroud of a turbine engine. The sealing system includes a plurality of flexible seal strips extending from a pressure side of a turbine blade generally orthogonal to the turbine blade. During operation of the turbine engine, the flexible seal strips flex radially outward extending towards the stationary shroud of the turbine engine, thereby reducing the leakage of air past the turbine blades and increasing the efficiency of the turbine engine.

  14. Judith Gap Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:onItron (California)JointJosephine, Texas:Gap Wind Farm Jump

  15. Point the Gap | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII JumpQuarterly SmartDB-2, Blue MountainSchoolPrairie Jump to: navigation,the Gap

  16. The Cost of Transmission for Wind Energy in the United States: A Review of Transmission Planning Studies.

    E-Print Network [OSTI]

    Wiser, Ryan

    2014-01-01

    on U. S . Wind Power Installation, Cost, and Performance30% wind penetration. Wind transmission costs in the severalof Transmission ($/kW-wind) Unit Cost of Transmission ($/

  17. Requirements for self-magnetically insulated transmission lines

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

    VanDevender, J. Pace; Pointon, Timothy D.; Seidel, David B.; Struve, Kenneth W.; Jennings, Christopher; Oliver, Bryan V.; Schneider, Larry X.

    2015-03-01

    Self-magnetically insulated transmission lines (MITLs) connect pulsed-power drivers with a load. Although the technology was originally developed in the 1970s and is widely used today in super power generators, failure of the technology is the principal limitation on the power that can be delivered to an experiment. We address issues that are often overlooked, rejected after inadequate simulations, or covered by overly conservative assumptions: (i) electron retrapping in coupling MITLs to loads, (ii) the applicability of collisionless versus collisional electron flow, (iii) power transport efficiency as a function of the geometry at the beginning of the MITL, (iv) gap closuremore »and when gap closure can be neglected, and (v) the role of negative ions in causing anode plasmas and enhancing current losses. We suggest a practical set of conservative design requirements for self-magnetically insulated electron flow based on the results discussed in this paper and on previously published results. The requirements are not necessarily severe constraints in all MITL applications; however, each of the 18 suggested requirements should be examined in the design of a MITL and in the investigation of excessive losses.« less

  18. Automated manual transmission mode selection controller

    DOE Patents [OSTI]

    Lawrie, Robert E. (Whitmore Lake, MI)

    1999-11-09

    A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate as an automatic transmission from the perspective of the driver. The engine and the electric machine drive an input shaft which in turn drives an output shaft of the transmission. In addition to driving the transmission, the electric machine regulates the speed of the input shaft in order to synchronize the input shaft during either an upshift or downshift of the transmission by either decreasing or increasing the speed of the input shaft. When decreasing the speed of the input shaft, the electric motor functions as an alternator to produce electrical energy which may be stored by a storage device. Operation of the transmission is controlled by a transmission controller which receives input signals and generates output signals to control shift and clutch motors to effect smooth launch, upshift shifts, and downshifts of the transmission, so that the transmission functions substantially as an automatic transmission from the perspective of the driver, while internally substantially functioning as a manual transmission.

  19. Automated manual transmission shift sequence controller

    DOE Patents [OSTI]

    Lawrie, Robert E. (Whitmore Lake, MI); Reed, Richard G. (Royal Oak, MI); Rausen, David J. (Denver, CO)

    2000-02-01

    A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both, an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate as an automatic transmission from the perspective of the driver. The engine and the electric machine drive an input shaft which in turn drives an output shaft of the transmission. In addition to driving the transmission, the electric machine regulates the speed of the input shaft in order to synchronize the input shaft during either an upshift or downshift of the transmission by either decreasing or increasing the speed of the input shaft. When decreasing the speed of the input shaft, the electric motor functions as an alternator to produce electrical energy which may be stored by a storage device. Operation of the transmission is controlled by a transmission controller which receives input signals and generates output signals to control shift and clutch motors to effect smooth launch, upshift shifts, and downshifts of the transmission, so that the transmission functions substantially as an automatic transmission from the perspective of the driver, while internally substantially functioning as a manual transmission.

  20. Extended Supersymmetry in Gapped and Superconducting Graphene

    E-Print Network [OSTI]

    V. K. Oikonomou

    2015-06-27

    In view of the many quantum field theoretical descriptions of graphene in $2+1$ dimensions, we present another field theoretical feature of graphene, in the presence of defects. Particularly, we shall be interested in gapped graphene in the presence of a domain wall and also for superconducting graphene in the presence of a vortex. As we explicitly demonstrate, the gapped graphene electrons that are localized on the domain wall are associated with four $N=2$ one dimensional supersymmetries, with each pair combining to form an extended $N=4$ supersymmetry with non-trivial topological charges. The case of superconducting graphene is more involved, with the electrons localized on the vortex being associated with $n$ one dimensional supersymmetries, which in turn combine to form an $N=2n$ extended supersymmetry with no-trivial topological charges. As we shall prove, all supersymmetries are unbroken, a feature closely related to the number of the localized fermions and also to the exact form of the associated operators. In addition, the corresponding Witten index is invariant under compact and odd perturbations.

  1. Next Generation Nuclear Plant GAP Analysis Report

    SciTech Connect (OSTI)

    Ball, Sydney J; Burchell, Timothy D; Corwin, William R; Fisher, Stephen Eugene; Forsberg, Charles W.; Morris, Robert Noel; Moses, David Lewis

    2008-12-01

    As a follow-up to the phenomena identification and ranking table (PIRT) studies conducted recently by NRC on next generation nuclear plant (NGNP) safety, a study was conducted to identify the significant 'gaps' between what is needed and what is already available to adequately assess NGNP safety characteristics. The PIRT studies focused on identifying important phenomena affecting NGNP plant behavior, while the gap study gives more attention to off-normal behavior, uncertainties, and event probabilities under both normal operation and postulated accident conditions. Hence, this process also involved incorporating more detailed evaluations of accident sequences and risk assessments. This study considers thermal-fluid and neutronic behavior under both normal and postulated accident conditions, fission product transport (FPT), high-temperature metals, and graphite behavior and their effects on safety. In addition, safety issues related to coupling process heat (hydrogen production) systems to the reactor are addressed, given the limited design information currently available. Recommendations for further study, including analytical methods development and experimental needs, are presented as appropriate in each of these areas.

  2. Pulse shaping with transmission lines

    DOE Patents [OSTI]

    Wilcox, Russell B. (Oakland, CA)

    1987-01-01

    A method and apparatus for forming shaped voltage pulses uses passive reflection from a transmission line with nonuniform impedance. The impedance of the reflecting line varies with length in accordance with the desired pulse shape. A high voltage input pulse is transmitted to the reflecting line. A reflected pulse is produced having the desired shape and is transmitted by pulse removal means to a load. Light activated photoconductive switches made of silicon can be utilized. The pulse shaper can be used to drive a Pockels cell to produce shaped optical pulses.

  3. DOE Transmission System Integration Workshop

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i pStateDOE FederalTheofHeyeck, AEP, Sr. Vice President, Transmission and

  4. Sandia Energy - Transmission Grid Integration

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II)GeothermalFuel Magnetization andStochasticuniqueCuriosity'sTransmission

  5. The Inherent Inefficiency of Simultaneously Feasible Financial Transmission Rights Auctions

    E-Print Network [OSTI]

    transmission right, electricity auction, simultaneous feasibility, transmission pricing. I. INTRODUCTION POINTThe Inherent Inefficiency of Simultaneously Feasible Financial Transmission Rights Auctions Shi as financial transmission rights (FTRs), resulting from centralized auctions conducted by Independent System

  6. Terahertz Quantum-Cascade Transmission-Line Metamaterials

    E-Print Network [OSTI]

    Tavallaee, Amir Ali

    2012-01-01

    Transmission-Line Metamaterials . . . . . . . Terahertz CRLHCRLH Transmission-Line Metamaterials . . . . . . . 112losses in negative-index metamaterials by optical parametric

  7. Report of the Task Force on Statewide Transmission Siting and...

    Open Energy Info (EERE)

    and disadvantages of a statewide transmission siting and permitting framwork for electric transmission facilities, and provides recommendations for improvement. Author...

  8. Modeling Interregional Transmission Congestion in the National Energy Modeling System

    E-Print Network [OSTI]

    Gumerman, Etan; Chan, Peter; Lesieutre, Bernard; Marnay, Chris; Wang, Juan

    2006-01-01

    to a load center via a DC transmission line such that flowsD.C. 127 pages. Modeling Interregional Transmission

  9. Wind Integration, Transmission, and Resource Assessment andCharacteri...

    Office of Environmental Management (EM)

    Integration, Transmission, and Resource Assessment and Characterization Projects Wind Integration, Transmission, and Resource Assessment and Characterization Projects This report...

  10. Study of transmission line attenuation in broad band millimeter wave frequency range

    SciTech Connect (OSTI)

    Pandya, Hitesh Kumar B.; Austin, M. E.; Ellis, R. F.

    2013-10-15

    Broad band millimeter wave transmission lines are used in fusion plasma diagnostics such as electron cyclotron emission (ECE), electron cyclotron absorption, reflectometry and interferometry systems. In particular, the ECE diagnostic for ITER will require efficient transmission over an ultra wide band, 100 to 1000 GHz. A circular corrugated waveguide transmission line is a prospective candidate to transmit such wide band with low attenuation. To evaluate this system, experiments of transmission line attenuation were performed and compared with theoretical loss calculations. A millimeter wave Michelson interferometer and a liquid nitrogen black body source are used to perform all the experiments. Atmospheric water vapor lines and continuum absorption within this band are reported. Ohmic attenuation in corrugated waveguide is very low; however, there is Bragg scattering and higher order mode conversion that can cause significant attenuation in this transmission line. The attenuation due to miter bends, gaps, joints, and curvature are estimated. The measured attenuation of 15 m length with seven miter bends and eighteen joints is 1 dB at low frequency (300 GHz) and 10 dB at high frequency (900 GHz), respectively.

  11. Superconducting transmission line particle detector

    DOE Patents [OSTI]

    Gray, Kenneth E. (Naperville, IL)

    1989-01-01

    A microvertex particle detector for use in a high energy physic collider including a plurality of parallel superconducting thin film strips separated from a superconducting ground plane by an insulating layer to form a plurality of superconducting waveguides. The microvertex particle detector indicates passage of a charged subatomic particle by measuring a voltage pulse measured across a superconducting waveguide caused by the transition of the superconducting thin film strip from a superconducting to a non-superconducting state in response to the passage of a charged particle. A plurality of superconducting thin film strips in two orthogonal planes plus the slow electromagnetic wave propogating in a superconducting transmission line are used to resolve N.sup.2 ambiguity of charged particle events.

  12. Shock transmissibility of threaded joints

    SciTech Connect (OSTI)

    Hansen, N.R.; Bateman, V.I.; Brown, F.A.

    1996-12-31

    Sandia National Laboratories (SNL) designs mechanical systems with threaded joints that must survive high shock environments. These mechanical systems include penetrators that must survive soil and rock penetration; drilling pipe strings that must survive rock-cutting, shock environments; and laydown weapons that must survive delivery impact shock. This paper summarizes an analytical study and an experimental evaluation of compressive, one-dimensional, shock transmission through a threaded joint in a split Hopkinson bar configuration. Thread geometries were scaled to simulate large diameter threaded joints with loadings parallel to the axis of the threads. Both strain and acceleration were evaluated with experimental measurements and analysis. Analytical results confirm the experimental conclusions that in this split Hopkinson bar configuration, the change in the one-dimensional shock wave by the threaded joint is localized to a length equal to a few diameters` length beyond the threaded joint.

  13. Superconducting transmission line particle detector

    DOE Patents [OSTI]

    Gray, K.E.

    1988-07-28

    A microvertex particle detector for use in a high energy physic collider including a plurality of parallel superconducting thin film strips separated from a superconducting ground plane by an insulating layer to form a plurality of superconducting waveguides. The microvertex particle detector indicates passage of a charged subatomic particle by measuring a voltage pulse measured across a superconducting waveguide caused by the transition of the superconducting thin film strip from a superconducting to a non- superconducting state in response to the passage of a charged particle. A plurality of superconducting thin film strips in two orthogonal planes plus the slow electromagnetic wave propagating in a superconducting transmission line are used to resolve N/sup 2/ ambiguity of charged particle events. 6 figs.

  14. Sensitivity Analysis of the Gap Heat Transfer Model in BISON.

    SciTech Connect (OSTI)

    Swiler, Laura Painton; Schmidt, Rodney C.; Williamson, Richard; Perez, Danielle

    2014-10-01

    This report summarizes the result of a NEAMS project focused on sensitivity analysis of the heat transfer model in the gap between the fuel rod and the cladding used in the BISON fuel performance code of Idaho National Laboratory. Using the gap heat transfer models in BISON, the sensitivity of the modeling parameters and the associated responses is investigated. The study results in a quantitative assessment of the role of various parameters in the analysis of gap heat transfer in nuclear fuel.

  15. The Nuclear Pairing Gap -- How Low Can It Go?

    E-Print Network [OSTI]

    B. Alex Brown

    2013-08-16

    The pairing gap for $^{53}$Ca obtained from new experimental data on the masses of $^{52-54}$Ca has the smallest value yet observed. This is explained in the framework of the nuclear shell model with schematic and realistic Hamiltonians as being due to shell gaps around the low-$ j $ orbital $ 1p_{1/2} $. Minima in the pairing gaps for all nuclei are shown and discussed

  16. Grand Coulee Transmission Line Replacement Project

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

    & Reliability Projects Expand Projects Skip navigation links Line Projects Big Eddy-Knight Central Ferry Lower Monumental Grand Coulee Transmission Line Replacement...

  17. WESTERN MONTANA ELECTRIC GENERATING & TRANSMISSION COOPERATIVE, INC.

    E-Print Network [OSTI]

    1 WESTERN MONTANA ELECTRIC GENERATING & TRANSMISSION COOPERATIVE, INC. 1001 SW Higgins, Panorama, but not the more fundamental issues of stakeholder definition, future role, governance and structure. We

  18. DOE Affirms National Interest Electric Transmission Corridor...

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

    requests for rehearing of the Mid-Atlantic and the Southwest Area National Interest Electric Transmission Corridors (National Corridors) designated by DOE in October 2007 as...

  19. Coordination of Federal Authorizations for Electric Transmission...

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

    rulemaking and opportunity for comment on the coordination of federal authorizations for electric transmission facilities, September 19, 2008 Coordination of Federal...

  20. Interconnection-Wide Transmission Planning Initiative: Topic...

    Office of Environmental Management (EM)

    A, Interconnection-Level Analysis and Planning Interconnection-Wide Transmission Planning Initiative: Topic A, Interconnection-Level Analysis and Planning A description of the...

  1. Interconnection-Wide Transmission Planning Initiative: Topic...

    Office of Environmental Management (EM)

    Interconnection on Electric Resource Planning and Priorities Interconnection-Wide Transmission Planning Initiative: Topic B, Cooperation Among States in the Eastern...

  2. Interconnection-Wide Transmission Planning Initiative: Topic...

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

    Western Interconnection under the Interconnection-Wide Transmission Planning Initiative, part of the American Recovery and Reinvestment Act. The fundamental purpose of the awards...

  3. Transmission Services Product Pricing Validation - September...

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

    Transmission-Services-Product-Pricing-Validation---September-17,-2015 Sign In About | Careers | Contact | Investors | bpa.gov Search Doing Business Expand Doing Business Customer...

  4. California - Establishing Transmission Project Review Streamlining...

    Open Energy Info (EERE)

    California - Establishing Transmission Project Review Streamlining Directives Jump to: navigation, search OpenEI Reference LibraryAdd to library PermittingRegulatory Guidance -...

  5. Transmission eigenvalues for operators with constant coefficients

    E-Print Network [OSTI]

    Michael Hitrik; Katsiaryna Krupchyk; Petri Ola; Lassi Päivärinta

    2010-04-28

    In this paper we study the interior transmission problem and transmission eigenvalues for multiplicative perturbations of linear partial differential operator of order $\\ge 2$ with constant real coefficients. Under suitable growth conditions on the symbol of the operator and the perturbation, we show the discreteness of the set of transmission eigenvalues and derive sufficient conditions on the existence of transmission eigenvalues. We apply these techniques to the case of the biharmonic operator and the Dirac system. In the hypoelliptic case we present a connection to scattering theory.

  6. Northern Pass Transmission Line Project Environmental Impact...

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

    the location of the September 26 public scoping meeting for the Northern Pass Transmission Line Project to Colebrook Elementary School, 27 Dumont Street, Colebrook, NH. On...

  7. Memorandum of Understanding Regarding Transmission Siting on...

    Open Energy Info (EERE)

    Memorandum of Understanding Regarding Transmission Siting on Federal Land (2009) Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- Memorandum of...

  8. Transmission Services Commercial Systems Support and Development

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

    Call Agenda This customer conference call will provide updates concerning BPA Transmission Services' commercial systems support and development efforts. It will also provide...

  9. Transmission Line Security Monitor: Final Report

    SciTech Connect (OSTI)

    John Svoboda

    2011-04-01

    The Electric Power Transmission Line Security Monitor System Operational Test is a project funded by the Technical Support Working Group (TSWG). TSWG operates under the Combating Terrorism Technical Support Office that functions under the Department of Defense. The Transmission Line Security Monitor System is based on technology developed by Idaho National Laboratory. The technology provides a means for real-time monitoring of physical threats and/or damage to electrical transmission line towers and conductors as well as providing operational parameters to transmission line operators to optimize transmission line operation. The end use is for monitoring long stretches of transmission lines that deliver electrical power from remote generating stations to cities and industry. These transmission lines are generally located in remote transmission line corridors where security infrastructure may not exist. Security and operational sensors in the sensor platform on the conductors take power from the transmission line and relay security and operational information to operations personnel hundreds of miles away without relying on existing infrastructure. Initiated on May 25, 2007, this project resulted in pre-production units tested in realistic operational environments during 2010. A technology licensee, Lindsey Manufacturing of Azusa California, is assisting in design, testing, and ultimately production. The platform was originally designed for a security monitoring mission, but it has been enhanced to include important operational features desired by electrical utilities.

  10. Reminder: Transmission Services Product Pricing Validation -...

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

    Transmission-Services-Product-Pricing-Validation---September-24,-2015 Sign In About | Careers | Contact | Investors | bpa.gov Search Doing Business Expand Doing Business Customer...

  11. Memorandum of Understanding Regarding Transmission Siting on...

    Open Energy Info (EERE)

    Memorandum of Understanding Regarding Transmission Siting on Federal Land (2006) Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- Memorandum of...

  12. State Strategies for Accelerating Transmission Development for...

    Open Energy Info (EERE)

    State Strategies for Accelerating Transmission Development for Renewable Energy Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: State Strategies for...

  13. Flexible Transmission in the Smart Grid

    E-Print Network [OSTI]

    Hedman, Kory Walter

    2010-01-01

    New England Outlook: Smart Grid is About Consumers,” Apr. [Transmission in the Smart Grid By Kory Walter Hedman ATransmission in the Smart Grid by Kory Walter Hedman Doctor

  14. Energy Department, Arizona Utilities Announce Transmission Infrastruct...

    Office of Environmental Management (EM)

    Group, a collection of public power companies that include several Western firm electric and transmission service customers. Western's borrowing authority, received as part...

  15. Recovery Act Interconnection Transmission Planning | Department...

    Energy Savers [EERE]

    - are identifying transmission requirements under a broad range of alternative electricity futures (including intensive application of demand-side technologies), and...

  16. Wyoming/Transmission | Open Energy Information

    Open Energy Info (EERE)

    Lower Valley Energy, High West Energy, Western Area Power Administration, Bonneville Power Administration, Tri-State Generation and Transmission Association, Inc., and Rocky...

  17. California/Transmission | Open Energy Information

    Open Energy Info (EERE)

    San Diego Gas & Electric, Sacramento Municipal Utility District, PacifiCorp, Bonneville Power Administration, Transmission Agency of Northern California, and Western Area Power...

  18. Nevada/Transmission | Open Energy Information

    Open Energy Info (EERE)

    own transmission facilities in the State of Nevada: NV Energy, Bonneville Power Administration, and Valley Electric Association, Colorado River Commission, Los...

  19. Oregon/Transmission | Open Energy Information

    Open Energy Info (EERE)

    Electric Cooperative, Columbia Grid, Northern Tier Transmission Group, and Bonneville Power Administration. Oregon Energy Policy The Oregon Department of Energy's Governor's...

  20. Detonator comprising a nonlinear transmission line

    DOE Patents [OSTI]

    Elizondo-Decanini, Juan M

    2014-12-30

    Detonators are described herein. In a general embodiment, the detonator includes a nonlinear transmission line that has a variable capacitance. Capacitance of the nonlinear transmission line is a function of voltage on the nonlinear transmission line. The nonlinear transmission line receives a voltage pulse from a voltage source and compresses the voltage pulse to generate a trigger signal. Compressing the voltage pulse includes increasing amplitude of the voltage pulse and decreasing length of the voltage pulse in time. An igniter receives the trigger signal and detonates an explosive responsive to receipt of the trigger signal.

  1. Briefing Memo: Petroleum Product Transmission & Distribution...

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

    PDF of the briefing memo. Briefing Memo More Documents & Publications Briefing Memo: Petroleum Product Transmission & Distribution The Quadrennial Energy Review (Full Report)...

  2. FAQS Gap Analysis Qualification Card – General Technical Base

    Broader source: Energy.gov [DOE]

    Functional Area Qualification Standard Gap Analysis Qualification Cards outline the differences between the last and latest version of the FAQ Standard.

  3. Combined Heat and Power: Connecting the Gap between Markets and...

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

    Combined Heat and Power: Connecting the Gap between Markets and Utility Interconnection and Tariff Practices (Part I) Susanne Brooks, Brent Elswick, and R. Neal Elliott March 2006...

  4. Development of Low Energy Gap and Fully Regioregular Polythienylenevin...

    Office of Scientific and Technical Information (OSTI)

    Low energy gap and fully regioregular conjugated polymers find its wide use in solar energy conversion applications. This paper will first briefly review this type of...

  5. FAQS Gap Analysis Qualification Card – Nuclear Explosive Safety Study

    Broader source: Energy.gov [DOE]

    Functional Area Qualification Standard Gap Analysis Qualification Cards outline the differences between the last and latest version of the FAQ Standard.

  6. Substrate-induced band gap opening in epitaxial graphene

    E-Print Network [OSTI]

    2008-01-01

    step to make graphene a semiconductor is to dope grapheneDirac points, graphene is a zero gap semiconductor, and howconventional semiconductors. In single layer graphene, the

  7. FAQS Gap Analysis Qualification Card – Fire Protection Engineering

    Broader source: Energy.gov [DOE]

    Functional Area Qualification Standard Gap Analysis Qualification Cards outline the differences between the last and latest version of the FAQ Standard.

  8. Catalysis by Design: Bridging the Gap between Theory and Experiments...

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

    between Theory and Experiments Catalysis by Design: Bridging the Gap between Theory and Experiments Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research...

  9. Catalysis by Design: Bridging the Gap Between Theory and Experiments...

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

    Between Theory and Experiments at Nanoscale Level Catalysis by Design: Bridging the Gap Between Theory and Experiments at Nanoscale Level Studies on a simple platinum-alumina...

  10. Substrate-Induced Band-Gap Opening in Epitaxial Graphene

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

    Substrate-Induced Band-Gap Opening in Epitaxial Graphene Print Prospective challengers to silicon, the long-reigning king of semiconductors for computer chips and other electronic...

  11. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    on U.S. Wind Power Installation, Cost, and PerformanceTransmission ($/kW-wind) Unit Cost (Capacity-weighted) Windof Transmission ($/MWh- wind) Unit Cost (Capacity-weighted)

  12. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    Annual Report on U.S. Wind Power Installation, Cost, andcost of transmission implied by this study is $207/kW-wind (U.S.lead us to overstate the unit cost of transmission for wind.

  13. MI Gap Clearing Kicker Magnet Design Review

    SciTech Connect (OSTI)

    Jensen, Chris; /Fermilab

    2008-10-01

    The kicker system requirements were originally conceived for the NOvA project. NOvA is a neutrino experiment located in Minnesota. To achieve the desired neutrino flux several upgrades are required to the accelerator complex. The Recycler will be used as a proton pre-injector for the Main Injector (MI). As the Recycler is the same size as the MI, it is possible to do a single turn fill ({approx}11 {micro}sec), minimizing the proton injection time in the MI cycle and maximizing the protons on target. The Recycler can then be filled with beam while the MI is ramping to extract beam to the target. To do this requires two new transfer lines. The existing Recycler injection line was designed for 10{pi} pbar beams, not the 20{pi} proton beams we anticipate from the Booster. The existing Recycler extraction line allows for proton injection through the MI, while we want direct injection from the Booster. These two lines will be decommissioned. The new injection line from the MI8 line into the Recycler will start at 848 and end with injection kickers at RR104. The new extraction line in the RR30 straight section will start with a new extraction kicker at RR232 and end with new MI injection kickers at MI308. Finally, to reduce beam loss activation in the enclosure, a new gap clearing kicker will be used to extract uncaptured beam created during the slip stack injection process down the existing dump line. It was suggested that the MI could benefit from this type of system immediately. This led to the early installation of the gap clearing system in the MI, followed by moving the system to Recycler during NOvA. The specifications also changed during this process. Initially the rise and fall time requirements were 38 ns and the field stability was {+-}1%. The 38 ns is based on having a gap of 2 RF buckets between injections. (There are 84 RF buckets that can be filled from the Booster for each injection, but 82 would be filled with beam. MI and Recycler contain 588 RF buckets.) A rough cost/benefit analysis showed that increasing the number of empty buckets to 3 decreased the kicker system cost by {approx}30%. This could be done while not extending the running time since this is only a 1% reduction in protons per pulse, hence the rise and fall time are now 57 ns. Additionally, the {+-}1% tolerance would have required a fast correction kicker while {+-}3% could be achieved without this kicker. The loosened tolerance was based on experience on wide band damping systems in the MI. A higher power wideband damping system is a better use of the resources as it can be used to correct for multiple sources of emittance growth. Finally, with the use of this system for MI instead of Recycler, the required strength grew from 1.2 mrad to 1.7 mrad. The final requirements for this kicker are listed.

  14. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    NREL/CP-500-35969. Global WindPower Conference. Chicago,Transmission Projects. ” Windpower 2007 Conference. Los

  15. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    Mexico to Arizona January 2008 SWAT Transmission to access renewable resource zones in Arizona NorthWestern Energy

  16. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    2006. Transmission and Wind Energy: Capturing the Prevailingand Renewable Energy (Wind & Hydropower Technologiesand Renewable Energy Wind & Hydropower Technologies Program

  17. EIS-0323-S1: Sacramento Area Voltage Support Project Supplemental Environmental Impact Statement and Environmental Impact Report, Placer, Sacramento, and Sutter Counties, California

    Broader source: Energy.gov [DOE]

    Construction and operation has been proposed of approximately 31 to 38 miles of new, double-circuit, 230-kilovolt (kV) transmission line between Western's O'Banion Substation and the area just south of SMUD's Elverta Substation and the reconstruciton of SMUD's existing 230-kV/115kV transmission line between SMUD's Elverta and Natomas substations.

  18. A CRITICAL REVIEW OF WIND TRANSMISSION COST ESTIMATES FROM MAJOR TRANSMISSION PLANNING EFFORTS

    E-Print Network [OSTI]

    Mills, Andrew; Wiser, Ryan; Porter, Kevin

    2007-01-01

    transmission upgrades do not involve building new lines, such as DCD.C. , June. Available at: http://www.eei.org/industry_issues/energy_infrastructure/transmission/DC converters between links. Traditionally, utilities have been responsible for ensuring that the local transmission

  19. EIT-like transmission by interaction between multiple Bragg scattering and local plasmonic resonances

    E-Print Network [OSTI]

    Liu, Z Z; Xiao, J J

    2015-01-01

    We study the optical properties associated to both the polariton gap and the Bragg gap in periodic resonator-waveguide coupled system, based on the temporal coupled mode theory and the transfer matrix method. By the complex band and the transmission spectrum, it is feasible to tune the interaction between multiple Bragg scattering and the local resonance, which may give rise to analogous phenomena of electromagnetically induced transparency (EIT). We further design a plasmonic slot waveguide side-coupled with local plasmonic resonator to demonstrate the EIT-like effects in the near-infared band. Numerical calculations show that realistic amount of metal Joule loss may destroy the interference and the total absorption is enhanced in the transparency windwo due to the near zero group velocity of the guiding wave.

  20. Low Frequency Transmission Final Project Report

    E-Print Network [OSTI]

    Low Frequency Transmission Final Project Report Power Systems Engineering Research Center Empowering Minds to Engineer the Future Electric Energy System #12;Low Frequency Transmission Final Project This is the final report for the Power Systems Engineering Research Center (PSERC) research project S-42 titled "Low

  1. Policy Issues for Retail Beamed Power Transmission

    E-Print Network [OSTI]

    electric power on Earth is transmitted using wired power transmission systems. In this system, electricalPolicy Issues for Retail Beamed Power Transmission Girish Chowdhary, Rajeev Gadre, Narayanan solar electric power using retail delivery of beamed power. Recent advances in power beaming have made

  2. Spatial mode properties of plasmon assisted transmission

    E-Print Network [OSTI]

    Xi-Feng Ren; Guo-Ping Guo; Yun-Feng Huang; Zhi-Wei Wang; Guang-Can Guo

    2006-09-11

    Orbital angular momentum of photons is explored to study the spatial mode properties of plasmon assisted transmission process. We found that photons carrying different orbital angular momentums have different transmission efficiencies, while the coherence between these spatial modes can be preserved.

  3. Ecological benefits of dc power transmission

    SciTech Connect (OSTI)

    Kutuzova, N. B.

    2011-05-15

    The environmental effects of dc overhead transmission lines are examined. The major effects of ac and dc transmission lines are compared. Dc lines have advantages compared to ac lines in terms of electrical safety for people under the lines, biological effects, corona losses, and clearance width.

  4. Neuromotor Transmissibility of Horizontal Seatpan Vibration

    E-Print Network [OSTI]

    Channamallu, Raghu Ram

    2007-12-16

    for a frequency range of 3-14 Hz at 1 RMS (ms-2) and 2 RMS (ms-2) vibration magnitudes. The mechanical transmission to lumbar rotations did not exhibit resonance within the measured frequency range without the backrest. The mechanical transmission with a...

  5. The New York Transmission Congestion Contract Market

    E-Print Network [OSTI]

    Oren, Shmuel S.

    The New York Transmission Congestion Contract Market: Is It Truly Working Efficiently? An analysis indicates that the financial point-to-point transmission rights auction implemented by the New York, Elsevier Inc., 1040-6190/$­see front matter doi:/10.1016/j.tej.2003.09.006 1 #12;spring of 2000 in the New

  6. Renewable Energy Transmission Initiative Phase 1A

    E-Print Network [OSTI]

    Renewable Energy Transmission Initiative Phase 1A DRAFT REPORT MARCH 2008 RETI-1000-2008-001-D #12;RETI Stakeholder Steering Committee Renewable Energy Transmission Initiative Phase 1A DRAFT REPORT B are registered trademarks of Black & Veatch Holding Company #12;RETI Stakeholder Steering Committee Renewable

  7. Unpredictability and the transmission of numbers

    E-Print Network [OSTI]

    Myers, John M

    2015-01-01

    Curiously overlooked in physics is its dependence on the transmission of numbers. For example the transmission of numerical clock readings is implicit in the concept of a coordinate system. The transmission of numbers and other logical distinctions is often achieved over a computer-mediated communications network in the face of an unpredictable environment. By unpredictable we mean something stronger than the spread of probabilities over given possible outcomes, namely an opening to unforeseeable possibilities. Unpredictability, until now overlooked in theoretical physics, makes the transmission of numbers interesting. Based on recent proofs within quantum theory that provide a theoretical foundation to unpredictability, here we show how regularities in physics rest on a background of channels over which numbers are transmitted. As is known to engineers of digital communications, numerical transmissions depend on coordination reminiscent of the cycle of throwing and catching by players tossing a ball back and...

  8. Environmental Assessment for Central Power and Light Company`s proposed Military Highway-CFE tie 138/69-kV transmission line project Brownsville, Cameron County, Texas

    SciTech Connect (OSTI)

    Not Available

    1992-04-01

    Central Power and Light Company (CPL) intends to upgrade its existing transmission line ties with the Commision Federal de Electricidad (CFE) system in Mexico. CPL currently has a single 69-kilovolt (kV) transmission line in the Brownsville area which connects CPL`s system with the system of CFE. This existing line runs between the Brownsville Switching Station, located on Laredo Road in Brownsville, Cameron County, Texas, and an existing CFE 69-kV line at the Rusteberg Bend of the Rio Grande in Cameron County. Under current conditions of need, the existing 69-kV line does not possess sufficient capability to engage in appropriate power exchanges. Therefore, CPL is proposing to build a new line to link up with CFE. This proposed line would be a double-circuit line, which would (1) continue (on a slightly relocated route) the existing 69-kV tie from CPL`s Brownsville Switching Station to CFE`s facilities, and (2) add a 138-kV tie from the Military Highway Substation, located on Military Highway (US Highway 281), to CFE`s facilities. The proposed 138/69-kV line, which will be constructed and operated by CPL, will be built primarily on steel single-pole structures within an average 60-foot (ft) wide right-of-way (ROW). It will be approximately 6900--9200 ft (1.3--1.7 miles) in length, depending on the alternative route constructed.

  9. SEMIEMPIRICAL MOLECULAR ORBITAL CALCULATIONS OF BAND GAPS OF CONJUGATED POLYMERS

    E-Print Network [OSTI]

    Goddard III, William A.

    SEMI­EMPIRICAL MOLECULAR ORBITAL CALCULATIONS OF BAND GAPS OF CONJUGATED POLYMERS Tahir Cagin Research and Development Center, Materials Labarotory, Polymer Branch, Wright Patterson AFB, Ohio 45433 geometries and energy band gaps of conjugated polymers. In this study, we used a modified version of semi

  10. Attenuation of optical transmission within the band gap of thin two-dimensional macroporous silicon photonic crystals

    E-Print Network [OSTI]

    Van Driel, Henry M.

    and illuminated from the wafer backside. If applied to a polished silicon wafer, the pore arrangement becomes address: Institute for Theory of Condensed Matter, University of Karlsruhe, P.O. Box 6980, D-76128

  11. CX-002213: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Spacer replacement along the Hanford-Wautoma #1 and #2 (substation to substation) transmission linesCX(s) Applied: B1.3Date: 04/23/2010Location(s): Benton County, WashingtonOffice(s): Bonneville Power Administration

  12. Obama Administration Announces Job-Creating Grid Modernization...

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

    to Minnesota and Wisconsin: This double- circuit capable 345 kV transmission line will run between a new substation near Hampton, Minnesota, a new substation north of Pine...

  13. Conductive Channel for Energy Transmission

    SciTech Connect (OSTI)

    Apollonov, Victor V. [A.M. Prokhorov General Physics Institute, Vavilov Str. 38, Moscow, 119991 (Russian Federation)

    2011-11-10

    For many years the attempts to create conductive channels of big length were taken in order to study the upper atmosphere and to settle special tasks, related to energy transmission. There upon the program of creation of 'Impulsar' represents a great interest, as this program in a combination with high-voltage high repetition rate electrical source can be useful to solve the above mentioned problems (N. Tesla ideas for the days of high power lasers). The principle of conductive channel production can be shortly described as follows. The 'Impulsar' - laser jet engine vehicle - propulsion take place under the influence of powerful high repetition rate pulse-periodic laser radiation. In the experiments the CO{sub 2}-laser and solid state Nd:YAG laser systems had been used. Active impulse appears thanks to air breakdown (<30 km) or to the breakdown of ablated material on the board (>30 km), placed in the vicinity of the focusing mirror-acceptor of the breakdown waves. With each pulse of powerful laser the device rises up, leaving a bright and dense trace of products with high degree of ionization and metallization by conductive nano-particles due to ablation. Conductive dust plasma properties investigation in our experiments was produced by two very effective approaches: high power laser controlled ablation and by explosion of wire. Experimental and theoretical results of conductive canal modeling will be presented. The estimations show that with already experimentally demonstrated figures of specific thrust impulse the lower layers of the Ionosphere can be reached in several ten seconds that is enough to keep the high level of channel conductivity and stability with the help of high repetition rate high voltage generator. Some possible applications for new technology are highlighted.

  14. Concurrent Wind Cooling in Power Transmission Lines

    SciTech Connect (OSTI)

    Jake P Gentle

    2012-08-01

    Idaho National Laboratory and the Idaho Power Company, with collaboration from Idaho State University, have been working on a project to monitor wind and other environmental data parameters along certain electrical transmission corridors. The combination of both real-time historical weather and environmental data is being used to model, validate, and recommend possibilities for dynamic operations of the transmission lines for power and energy carrying capacity. The planned results can also be used to influence decisions about proposed design criteria for or upgrades to certain sections of the transmission lines.

  15. NDN, VOLUME TRANSMISSION, AND SELF-ORGANIZATION IN BRAIN DYNAMICS

    E-Print Network [OSTI]

    Freeman, Walter J.

    NDN, VOLUME TRANSMISSION, AND SELF- ORGANIZATION IN BRAIN DYNAMICS WALTER J FREEMAN Department for the field synchrony: electric fields; magnetic fields; electromagnetic fields (radio waves); diffusion transmission by nonsynaptic diffusion transmission, in concert with the self- organization of the textured

  16. Estimating the Actual Cost of Transmission System Congestion

    E-Print Network [OSTI]

    with electric transmission. One such component is transmission system conEstimating the Actual Cost of Transmission System Congestion Thomas J. Overbye Department of Electrical and Computer Engineering University of Illinois at Urbana-Champaign Urbana, IL 61801 USA overbye

  17. Transmission enhancement through deep subwavelength apertures using connected split

    E-Print Network [OSTI]

    Transmission enhancement through deep subwavelength apertures using connected split ring resonators transmission enhancement factors through a subwavelength aperture at microwave frequencies by placing connected transmission through a deep subwavelength aperture with an electrical size of /31×/12 (width × length

  18. The Inherent Inefficiency of Simultaneously Feasible Financial Transmission Rights Auctions

    E-Print Network [OSTI]

    such convergence. Index Terms-- financial transmission right, electricity auction, simultaneous feasibilityThe Inherent Inefficiency of Simultaneously Feasible Financial Transmission Rights Auctions Shi as financial transmission rights (FTRs), resulting from centralized auctions conducted by Independent System

  19. Sixth Northwest Conservation and Electric Power Plan Chapter 7: Transmission

    E-Print Network [OSTI]

    Sixth Northwest Conservation and Electric Power Plan Chapter 7: Transmission Summary of Key..................................................................................................................................... 1 Northwest Transmission Planning), there was concern that there had been little progress on addressing the developing transmission issues in the region

  20. Critical Heat Flux in Inclined Rectangular Narrow Gaps

    SciTech Connect (OSTI)

    Jeong J. Kim; Yong H. Kim; Seong J. Kim; Sang W. Noh; Kune Y. Suh; Joy L. Rempe; Fan-Bill Cheung; Sang B. Kim

    2004-06-01

    In light of the TMI-2 accident, in which the reactor vessel lower head survived the attack by molten core material, the in-vessel retention strategy was suggested to benefit from cooling the debris through a gap between the lower head and the core material. The GAMMA 1D (Gap Apparatus Mitigating Melt Attack One Dimensional) tests were conducted to investigate the critical heat flux (CHF) in narrow gaps with varying surface orientations. The CHF in an inclined gap, especially in case of the downward-facing narrow gap, is dictated by bubble behavior because the departing bubbles are squeezed. The orientation angle affects the bubble layer and escape of the bubbles from the narrow gap. The test parameters include gap sizes of 1, 2, 5 and 10 mm and the open periphery, and the orientation angles range from the fully downward-facing (180o) to the vertical (90o) position. The 15 ×35 mm copper test section was electrically heated by the thin film resistor on the back. The heater assembly was installed to the tip of the rotating arm in the heated water pool at the atmospheric pressure. The bubble behavior was photographed utilizing a high-speed camera through the Pyrex glass spacer. It was observed that the CHF decreased as the surface inclination angle increased and as the gap size decreased in most of the cases. However, the opposing results were obtained at certain surface orientations and gap sizes. Transition angles, at which the CHF changed in a rapid slope, were also detected, which is consistent with the existing literature. A semi-empirical CHF correlation was developed for the inclined narrow rectangular channels through dimensional analysis. The correlation provides with best-estimate CHF values for realistically assessing the thermal margin to failure of the lower head during a severe accident involving relocation of the core material.

  1. Improving Electricity Resource-Planning Processes by Considering the Strategic Benefits of Transmission

    E-Print Network [OSTI]

    Budhraja, Vikram

    2010-01-01

    impacts of new electricity transmission projects generallyof high- voltage electricity transmission projects, such asby others. Electricity transmission facilities fit these

  2. Flexible Transmission in the Smart Grid

    E-Print Network [OSTI]

    Hedman, Kory Walter

    2010-01-01

    E. B. Fisher, S. S. Oren, “Smart flexible just-in-timeISO New England Outlook: Smart Grid is About Consumers,”Flexible Transmission in the Smart Grid By Kory Walter

  3. Transmission eigenvalues for strictly concave domains

    E-Print Network [OSTI]

    Georgi Vodev

    2015-01-05

    We prove that for strictly concave domains much larger transmission eigenvalue-free regions exist. As a consequence, we get Weyl asymptotics for the total counting function with an almost optimal remainder term.

  4. Inverse transmission problems for magnetic Schrödinger operators

    E-Print Network [OSTI]

    Katsiaryna Krupchyk

    2011-12-16

    This paper is concerned with the study of inverse transmission problems for magnetic Schr\\"odinger operators on bounded domains and in all of the Euclidean space, in the self-adjoint case. Assuming that the magnetic and electric potentials are known outside of a transparent obstacle, in the bounded domain case, we show that the obstacle, the transmission coefficients, as well as the magnetic field and electric potential inside the obstacle are uniquely determined from the knowledge of the set of the Cauchy data for the transmission problem, given on an open subset of the boundary of the domain. In the case of the transmission scattering problem, we obtain the same conclusion, when the scattering amplitude at a fixed frequency is known. The problems studied in this work were proposed in [15].

  5. Linear relaxations for transmission system planning

    E-Print Network [OSTI]

    Taylor, Joshua A.

    We apply a linear relaxation procedure for polynomial optimization problems to transmission system planning. The approach recovers and improves upon existing linear models based on the DC approximation. We then consider ...

  6. Load-resistant coaxial transmission line

    DOE Patents [OSTI]

    Hall, David R.; Fox, Joe

    2006-01-03

    A transmission line for downhole tools that make up all or part of a tool string for drilling and production of oil, gas, and geothermal wells that can withstand the dynamic gravitational forces and other accelerations associated with downhole excavations. The transmission line has a metal tube, or outer conductor, that houses a coaxial wire inner conductor. A non-metallic dielectric material is interposed between the inner and outer conductors. The outer and inner conductors and the dielectric are sufficiently compressed together so that independent motion between them is abated. Compression of the components of the transmission line may be achieved by drawing the transmission through one or more dies in order to draw down the outer conductor onto the dielectric, or by expanding the inner conductor against the dielectric using a mandrel or hydraulic pressure. Non-metallic bead segments may be used in aid of the compression necessary to resist the dynamic forces and accelerations of drilling.

  7. Electric Power Generation and Transmission (Iowa)

    Broader source: Energy.gov [DOE]

    Electric power generating facilities with a combined capacity greater than 25 MW, as well as associated transmission lines, may not be constructed or begin operation prior to the issuance of a...

  8. Transmission Character of General Function Photonic Crystals

    E-Print Network [OSTI]

    Xiang-Yao Wu; Bo-Jun Zhang; Jing-Hai Yang; Si-Qi Zhang; Xiao-Jing Liu; Jing Wang; Nuo Ba; Zhong Hua; Xin-Guo Yin

    2012-12-01

    In the paper, we present a new general function photonic crystals (GFPCs), which refractive index of medium is a arbitrary function of space position. Unlike conventional photonic crystals (PCs), which structure grow from two mediums $A$ and $B$, with different constant refractive indexes $n_{a}$ and $n_{b}$. Based on Fermat principle, we give the motion equations of light in one-dimensional GFPCs, and calculate its transfer matrix, which is different from the conventional PCs. We choose the linearity refractive index function for two mediums $A$ and $B$, and find the transmissivity of one-dimensional GFPCs can be much larger or smaller than 1 for different slope linearity refractive index function, which is different from the transmissivity of conventional PCs (its transmissivity is in the range of 0 and 1). Otherwise, we study the effect of different incident angles, the number of periods and optical thickness on the transmissivity, and obtain some new results different from the conventional PCs.

  9. Infrastructure Needs: Natural Gas/Electricity Transmission,...

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

    miles of transmission lines, 72,000 miles of distribution lines, and 6,300 miles of natural gas pipelines. Our over 8,600 employees are committed to our mission to deliver...

  10. Data transmission element for downhole drilling components

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David S. (Lehi, UT); Dahlgren, Scott (Provo, UT); Fox, Joe (Spanish Fork, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT)

    2006-01-31

    A robust data transmission element for transmitting information between downhole components, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The data transmission element components include a generally U-shaped annular housing, a generally U-shaped magnetically conductive, electrically insulating element such as ferrite, and an insulated conductor. Features on the magnetically conducting, electrically insulating element and the annular housing create a pocket when assembled. The data transmission element is filled with a polymer to retain the components within the annular housing by filling the pocket with the polymer. The polymer can bond with the annular housing and the insulated conductor but preferably not the magnetically conductive, electrically insulating element. A data transmission element is mounted within a recess proximate a mating surface of a downhole drilling component, such as a section of drill pipe.

  11. Transmission policy in the United States

    E-Print Network [OSTI]

    Joskow, Paul L.

    2004-01-01

    This paper provides an overview of the development of electric power transmission access, pricing and investment policies in the U.S. over the last 15 years and evaluates the current state of those policies. Pre-liberalization ...

  12. Efficient Spectral Methods for Transmission Eigenvalues and ...

    E-Print Network [OSTI]

    2014-03-24

    Mar 20, 2014 ... Efficient Spectral Methods for Transmission. Eigenvalues and Estimation of the Index of. Refraction. Jing An1,2,?, Jie Shen1,3. 1 School of ...

  13. Electrical Transmission Line Diametrical Retention Mechanism

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT); Fox, Joe (Spanish Fork, UT)

    2006-01-03

    The invention is a mechanism for retaining an electrical transmission line. In one embodiment of the invention it is a system for retaining an electrical transmission line within downhole components. The invention allows a transmission line to be attached to the internal diameter of drilling components that have a substantially uniform drilling diameter. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string, drill collars, heavy weight drill pipe, and jars. The system also includes a coaxial cable running between the first and second end of a drill pipe, the coaxial cable having a conductive tube and a conductive core within it. The invention allows the electrical transmission line to withstand the tension and compression of drill pipe during routine drilling cycles.

  14. SunZia Southwest Transmission Project Comments

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

    of March 28, 2012 2 1.0 Background. SunZia Southwest Transmission Project (SunZia or the Project) is a joint development effort currently underway in Arizona and New Mexico. The...

  15. Integrating Renewable Energy into the Transmission and Distribution...

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

    Integrating Renewable Energy into the Transmission and Distribution System of the U.S. Virgin Islands Integrating Renewable Energy into the Transmission and Distribution System of...

  16. 2006 National Electric Transmission Congestion Study and Related...

    Office of Environmental Management (EM)

    6 National Electric Transmission Congestion Study and Related Materials 2006 National Electric Transmission Congestion Study and Related Materials The 2006 National Congestion...

  17. Updating the Electric Grid: An Introduction to Non-Transmission...

    Energy Savers [EERE]

    Updating the Electric Grid: An Introduction to Non-Transmission Alternatives for Policymakers Updating the Electric Grid: An Introduction to Non-Transmission Alternatives for...

  18. Draft National Electric Transmission Congestion Study Now Available...

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

    National Electric Transmission Congestion Study Now Available for Public Comment Draft National Electric Transmission Congestion Study Now Available for Public Comment August 19,...

  19. Plan to Conduct Electric Transmission Congestion Study: Federal...

    Office of Environmental Management (EM)

    Plan to Conduct Electric Transmission Congestion Study: Federal Register Volume 76, No. 218 - Nov. 10, 2011 Plan to Conduct Electric Transmission Congestion Study: Federal Register...

  20. EA-1982: Parker-Davis Transmission System Routine Operation and...

    Energy Savers [EERE]

    Parker-Davis Transmission System Routine Operation and Maintenance Project and Proposed Integrated Vegetation Management Program EA-1982: Parker-Davis Transmission System Routine...

  1. EIS-0496: San Luis Transmission Project; Alameda, Merced, San...

    Office of Environmental Management (EM)

    6: San Luis Transmission Project; Alameda, Merced, San Joaquin and Stanislaus Counties, California EIS-0496: San Luis Transmission Project; Alameda, Merced, San Joaquin and...

  2. Steps to Establish a Real-Time Transmission Monitoring System...

    Energy Savers [EERE]

    Steps to Establish a Real-Time Transmission Monitoring System for Transmission Owners and Operators within the Eastern and Western Interconnections Steps to Establish a Real-Time...

  3. Plains and Eastern Clean Line Transmission Line: Comment from...

    Energy Savers [EERE]

    Plains and Eastern Clean Line Transmission Line: Comment from Marshall Hughes Plains and Eastern Clean Line Transmission Line: Comment from Marshall Hughes Comment submitted on...

  4. QER Public Meeting in Pittsburgh, PA: Natural Gas: Transmission...

    Energy Savers [EERE]

    Pittsburgh, PA: Natural Gas: Transmission, Storage and Distribution QER Public Meeting in Pittsburgh, PA: Natural Gas: Transmission, Storage and Distribution Meeting Date and...

  5. Eastern Wind Integration and Transmission Study -- Preliminary Findings: Preprint

    SciTech Connect (OSTI)

    Corbus, D.; Milligan, M.; Ela, E.; Schuerger, M.; Zavadil, B.

    2009-09-01

    This paper reviews the Eastern Wind Integration and Transmission Study, the development of wind datasets, the transmission analysis, and the results of wind integration analysis for four scenarios.

  6. Questions and Issues on Hydrogen Pipelines: Pipeline Transmission...

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

    Questions and Issues on Hydrogen Pipelines: Pipeline Transmission of Hydrogen Questions and Issues on Hydrogen Pipelines: Pipeline Transmission of Hydrogen Pipping of GH2 Pipeline....

  7. Factsheet: An Initiative to Help Modernize Natural Gas Transmission...

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

    Factsheet: An Initiative to Help Modernize Natural Gas Transmission and Distribution Infrastructure Factsheet: An Initiative to Help Modernize Natural Gas Transmission and...

  8. OAHU Wind Integration And Transmission Study: Summary Report...

    Office of Environmental Management (EM)

    OAHU Wind Integration And Transmission Study: Summary Report, NREL (National Renewable Energy Laboratory) OAHU Wind Integration And Transmission Study: Summary Report, NREL...

  9. Wind Concurrent Cooling Could Increase Power Transmission Potential...

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

    Concurrent Cooling Could Increase Power Transmission Potential by as Much as 40% Wind Concurrent Cooling Could Increase Power Transmission Potential by as Much as 40% May 18, 2015...

  10. Spectral approximation to a transmission eigenvalue problem and ...

    E-Print Network [OSTI]

    2015-03-05

    putation of the first transmission eigenvalue, to estimate the index of refraction of ... We consider in this paper the interior transmission eigenvalue problem for the.

  11. DOE EAC Electricity Adequacy Report. Transmission Chapter DRAFT...

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

    EAC Electricity Adequacy Report. Transmission Chapter DRAFT- September 18, 2008 DOE EAC Electricity Adequacy Report. Transmission Chapter DRAFT- September 18, 2008 The purpose of...

  12. Transmission/Resource Library/Enviromental Resources and Mitigation...

    Open Energy Info (EERE)

    Enviromental Resources and Mitigation < Transmission | Resource Library(Redirected from TransmissionResource LibraryMitigation) Redirect page Jump to: navigation, search...

  13. National Transmission Grid Study: 2002 | Department of Energy

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

    of Energy (DOE) to conduct a study to examine the benefits of establishing a national electricity transmission grid and to identify transmission bottlenecks and measures to...

  14. QER Public Meeting in Portland, OR: Electricity Transmission...

    Energy Savers [EERE]

    Portland, OR: Electricity Transmission, Storage and Distribution - West QER Public Meeting in Portland, OR: Electricity Transmission, Storage and Distribution - West Meeting Date...

  15. A Survey of National Transmission Grid Modeling Capabilities at DOE

    E-Print Network [OSTI]

    Howle, Victoria E.

    711712003 A Survey of National Transmission Grid Modeling Capabilities at DOE Laboratories Steve Data Sheets.................................................................... 9 Electricity Market Complex Adaptive Systems (EMCAS)..................10 Generation and Transmission Maximization (GTMAX

  16. An Annotated Bibliography of High-Voltage Direct-Current Transmission and Flexible AC Transmission (FACTS) Devices, 1991-1993.

    SciTech Connect (OSTI)

    Litzenberger, Wayne; Lava, Val

    1994-08-01

    References are contained for HVDC systems, converter stations and components, overhead transmission lines, cable transmission, system design and operations, simulation of high voltage direct current systems, high-voltage direct current installations, and flexible AC transmission system (FACTS).

  17. Transmission amplitudes from Bethe ansatz equations

    E-Print Network [OSTI]

    Anastasia Doikou; Nikos Karaiskos

    2013-03-05

    We consider the Heisenberg spin chain in the presence of integrable spin defects. Using the Bethe ansatz methodology, we extract the associated transmission amplitudes, that describe the interaction between the particle-like excitations displayed by the models and the spin impurity. In the attractive regime of the XXZ model, we also derive the breather's transmission amplitude. We compare our findings with earlier relevant results in the context of the sine-Gordon model.

  18. Reflection and transmission of conformal perturbation defects

    E-Print Network [OSTI]

    Ilka Brunner; Cornelius Schmidt-Colinet

    2015-08-18

    We consider reflection and transmission of interfaces which implement renormalisation group flows between conformal fixed points in two dimensions. Such an RG interface is constructed from the identity defect in the ultraviolet CFT by perturbing the theory on one side of the defect line. We compute reflection and transmission coefficients in perturbation theory to third order in the coupling constant and check our calculations against exact constructions of RG interfaces between coset models.

  19. X-ray transmissive debris shield

    DOE Patents [OSTI]

    Spielman, Rick B. (Albuquerque, NM)

    1994-01-01

    A composite window structure is described for transmitting x-ray radiation and for shielding radiation generated debris. In particular, separate layers of different x-ray transmissive materials are laminated together to form a high strength, x-ray transmissive debris shield which is particularly suited for use in high energy fluences. In one embodiment, the composite window comprises alternating layers of beryllium and a thermoset polymer.

  20. Reflection and transmission of conformal perturbation defects

    E-Print Network [OSTI]

    Brunner, Ilka

    2015-01-01

    We consider reflection and transmission of interfaces which implement renormalisation group flows between conformal fixed points in two dimensions. Such an RG interface is constructed from the identity defect in the ultraviolet CFT by perturbing the theory on one side of the defect line. We compute reflection and transmission coefficients in perturbation theory to third order in the coupling constant and check our calculations against exact constructions of RG interfaces between coset models.

  1. Transmission SEAB Presentation | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavingsTransmission SEAB Presentation Transmission

  2. Electron flow stability in magnetically insulated vacuum transmission lines

    SciTech Connect (OSTI)

    Rose, D. V.; Genoni, T. C.; Clark, R. E.; Welch, D. R. [Voss Scientific, LLC, Albuquerque, New Mexico 87108 (United States); Stygar, W. A. [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

    2011-03-15

    We evaluate the stability of electron current flow in high-power magnetically insulated transmission lines (MITLs). A detailed model of electron flow in cross-field gaps yields a dispersion relation for electromagnetic (EM) transverse magnetic waves [R. C. Davidson et al., Phys. Fluids 27, 2332 (1984)] which is solved numerically to obtain growth rates for unstable modes in various sheath profiles. These results are compared with two-dimensional (2D) EM particle-in-cell (PIC) simulations of electron flow in high-power MITLs. We find that the macroscopic properties (charge and current densities and self-fields) of the equilibrium profiles observed in the simulations are well represented by the laminar-flow model of Davidson et al. Idealized simulations of sheared flow in electron sheaths yield growth rates for both long (diocotron) and short (magnetron) wavelength instabilities that are in good agreement with the dispersion analysis. We conclude that electron sheaths that evolve self-consistently from space-charged-limited emission of electrons from the cathode in well-resolved 2D EM PIC simulations form stable profiles.

  3. Electron flow stability in magnetically insulated vacuum transmission lines.

    SciTech Connect (OSTI)

    Genoni, Thomas C. (Voss Scientific, LLC, Albuquerque, NM); Stygar, William A.; Welch, Dale Robert (Voss Scientific, LLC, Albuquerque, NM); Clark, R. E. (Voss Scientific, LLC, Albuquerque, NM); Rose, David V. (Voss Scientific, LLC, Albuquerque, NM)

    2010-11-01

    We evaluate the stability of electron current flow in high-power magnetically insulated transmission lines (MITLs). A detailed model of electron flow in cross-field gaps yields a dispersion relation for electromagnetic (EM) transverse magnetic waves [R. C. Davidson et al., Phys. Fluids 27, 2332 (1984)] which is solved numerically to obtain growth rates for unstable modes in various sheath profiles. These results are compared with two-dimensional (2D) EM particle-in-cell (PIC) simulations of electron flow in high-power MITLs. We find that the macroscopic properties (charge and current densities and self-fields) of the equilibrium profiles observed in the simulations are well represented by the laminar-flow model of Davidson et al. Idealized simulations of sheared flow in electron sheaths yield growth rates for both long (diocotron) and short (magnetron) wavelength instabilities that are in good agreement with the dispersion analysis. We conclude that electron sheaths that evolve self-consistently from space-charged-limited emission of electrons from the cathode in well-resolved 2D EM PIC simulations form stable profiles.

  4. Particle trap for compressed gas insulated transmission systems

    DOE Patents [OSTI]

    Cookson, Alan H. (Pittsburgh, PA)

    1985-01-01

    A particle trap is provided for gas insulated transmission lines having a central high voltage conductor supported within an outer coaxial conductive sheath by a dielectric support member. A cavity between the inner conductor and outer sheath is filled with a dielectric insulating gas. A cone-like particle deflector, mounted to the inner conductor, deflects moving particles away from the support member, to radially outer portions of the cavity. A conductive shield is disposed adjacent the outer sheath to form a field-free region in radially outer portions of the cavity, between the shield and the sheath. Particles traveling along the cavity are deflected by the cone-like deflector into the field-free region where they are held immobile. In a vertical embodiment, particles enter the field-free region through an upper end of a gap formed between shield and sheath members. In a horizontal embodiment, the deflector cone has a base which is terminated radially internally of the shield. Apertures in the shield located adjacent the deflector allow passage of deflected particles into the field-free region. The dielectric support member is thereby protected from contaminating particles that may otherwise come to rest thereon.

  5. Topological gap states of semiconducting armchair graphene ribbons

    E-Print Network [OSTI]

    Jeong, Y H; Yang, S -R Eric

    2015-01-01

    In semiconducting armchair graphene ribbons a chiral lattice deformation can induce pairs of topological gap states with opposite energies. Near the critical value of the deformation potential these kink and antikink states become almost degenerate with zero energy and have a fractional charge one-half. Such a semiconducting armchair ribbon represents a one-dimensional topological insulator with nearly zero energy end states. Using data collapse of numerical results we find that the shape of the kink displays an anomalous power-law dependence on the width of the local lattice deformation. We suggest that these gap states may be probed in optical measurements. However, "metallic" armchair graphene ribbons with a gap induced by many-electron interactions have no gap states and are not topological insulators.

  6. Fact #560: March 2, 2009 The Transportation Petroleum Gap

    Broader source: Energy.gov [DOE]

    In 1989 the transportation sector petroleum consumption surpassed U.S. petroleum production for the first time, creating a gap that must be met with imports of petroleum. By the year 2030,...

  7. Fact #687: August 8, 2011 The Transportation Petroleum Gap

    Broader source: Energy.gov [DOE]

    In 1989 the transportation sector petroleum consumption surpassed U.S. petroleum production for the first time, creating a gap that must be met with imports of petroleum. By the year 2035,...

  8. Fact #609: February 8, 2010 The Transportation Petroleum Gap

    Office of Energy Efficiency and Renewable Energy (EERE)

    In 1989 the transportation sector petroleum consumption surpassed U.S. petroleum production for the first time, creating a gap that must be met with imports of petroleum. By the year 2035,...

  9. Optimization Online - Optimality gap of constant-order policies ...

    E-Print Network [OSTI]

    Linwei Xin

    2014-09-07

    Sep 7, 2014 ... Optimality gap of constant-order policies decays exponentially in the lead time for ... For the special case of exponentially distributed demand, we further ... Category 1: Applications -- OR and Management Sciences (Supply ...

  10. Vacuum gaps with small tunnel currents at large electric field...

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

    Vacuum gaps with small tunnel currents at large electric field and its potential applications for energy storage, charge storage and power supplies. Friday, May 27, 2011 - 4:00pm...

  11. Band Gap Engineering of Poly(p-phenyleneethynylene)s

    E-Print Network [OSTI]

    Myrick, Michael Lenn

    Band Gap Engineering of Poly(p-phenyleneethynylene)s: Cross-Conjugated PPE-PPV Hybrids James N. Reaction of 2 with the aldehydes 3a-f in the presence of sodium hydride in THF furnishes the diiodides 4

  12. Governing the gap: Forging safe science through relational regulation

    E-Print Network [OSTI]

    Huising, Ruthanne

    Designed to close the ubiquitous gap between law on the books and law in action, management systems locate the standard setting and implementation of regulation within the regulated organization itself. Despite efforts to ...

  13. Interface Ferroelectric Transition near the Gap-Opening Temperature...

    Office of Scientific and Technical Information (OSTI)

    Interface Ferroelectric Transition near the Gap-Opening Temperature in a Single-Unit-Cell FeSe Film Grown on Nb-DopedSrTiO3Substrate Citation Details In-Document Search This...

  14. Topological gap states of semiconducting armchair graphene ribbons

    E-Print Network [OSTI]

    Y. H. Jeong; S. C. Kim; S. -R. Eric Yang

    2015-05-31

    In semiconducting armchair graphene ribbons a chiral lattice deformation can induce pairs of topological gap states with opposite energies. Near the critical value of the deformation potential these kink and antikink states become almost degenerate with zero energy and have a fractional charge one-half. Such a semiconducting armchair ribbon represents a one-dimensional topological insulator with nearly zero energy end states. Using data collapse of numerical results we find that the shape of the kink displays an anomalous power-law dependence on the width of the local lattice deformation. We suggest that these gap states may be probed in optical measurements. However, "metallic" armchair graphene ribbons with a gap induced by many-electron interactions have no gap states and are not topological insulators.

  15. Interface Ferroelectric Transition near the Gap-Opening Temperature...

    Office of Scientific and Technical Information (OSTI)

    Ferroelectric Transition near the Gap-Opening Temperature in a Single-Unit-Cell FeSe Film Grown on Nb-Doped SrTiO 3 Substrate Citation Details In-Document Search This content...

  16. Wide band-gap nanowires for light emitting diodes

    E-Print Network [OSTI]

    Chesin, Jordan (Jordan Paul)

    2015-01-01

    Wide band-gap nanowires composed of GaN and ZnO are promising materials for unique designs and potential efficiency improvement of light emitting diodes (LEDs) for solid state lighting. The large surface-to-volume ratio ...

  17. Permanent-magnet-less machine having an enclosed air gap

    DOE Patents [OSTI]

    Hsu, John S. (Oak Ridge, TN)

    2012-02-07

    A permanent magnet-less, brushless synchronous system includes a stator that generates a magnetic rotating field when sourced by an alternating current. An uncluttered rotor disposed within the magnetic rotating field is spaced apart from the stator to form an air gap relative to an axis of rotation. A stationary excitation core spaced apart from the uncluttered rotor by an axial air gap and a radial air gap substantially encloses the stationary excitation core. Some permanent magnet-less, brushless synchronous systems include stator core gaps to reduce axial flux flow. Some permanent magnet-less, brushless synchronous systems include an uncluttered rotor coupled to outer laminations. The quadrature-axis inductance may be increased in some synchronous systems. Some synchronous systems convert energy such as mechanical energy into electrical energy (e.g., a generator); other synchronous systems may convert any form of energy into mechanical energy (e.g., a motor).

  18. Permanent-magnet-less machine having an enclosed air gap

    DOE Patents [OSTI]

    Hsu, John S.

    2013-03-05

    A permanent magnet-less, brushless synchronous system includes a stator that generates a magnetic rotating field when sourced by an alternating current. An uncluttered rotor disposed within the magnetic rotating field is spaced apart from the stator to form an air gap relative to an axis of rotation. A stationary excitation core spaced apart from the uncluttered rotor by an axial air gap and a radial air gap substantially encloses the stationary excitation core. Some permanent magnet-less, brushless synchronous systems include stator core gaps to reduce axial flux flow. Some permanent magnet-less, brushless synchronous systems include an uncluttered rotor coupled to outer laminations. The quadrature-axis inductance may be increased in some synchronous systems. Some synchronous systems convert energy such as mechanical energy into electrical energy (e.g., a generator); other synchronous systems may convert any form of energy into mechanical energy (e.g., a motor).

  19. Substrate-Induced Band-Gap Opening in Epitaxial Graphene

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

    in a significant band gap, 0.26 electron volts (eV), an important step toward making graphene useful as a semiconductor. Left: In graphene's electronic band structure, the...

  20. Proper Sustainability: GAP Grant Proposal Work Plan Strategy Webinar

    Office of Energy Efficiency and Renewable Energy (EERE)

    In this webinar I will discuss the new GAP grant requirements for tribal environmental programs and strategies for crafting a work plan that focuses on capacity building activities.  My goal is to...

  1. Photonic-Band-Gap Traveling-Wave Gyrotron Amplifier

    E-Print Network [OSTI]

    Nanni, Emilio Alessandro

    We report the experimental demonstration of a gyrotron traveling-wave-tube amplifier at 250 GHz that uses a photonic band gap (PBG) interaction circuit. The gyrotron amplifier achieved a peak small signal gain of 38 dB and ...

  2. Bridging conduction and radiation : investigating thermal transport in nanoscale gaps

    E-Print Network [OSTI]

    Chiloyan, Vazrik

    2015-01-01

    Near field radiation transfer between objects separated by small gaps is a widely studied field in heat transfer and has become more important than ever. Many technologies such as heat assisted magnetic recording, aerogels, ...

  3. A CRITICAL REVIEW OF WIND TRANSMISSION COST ESTIMATES FROM MAJOR TRANSMISSION PLANNING EFFORTS

    E-Print Network [OSTI]

    Mills, Andrew; Wiser, Ryan; Porter, Kevin

    2007-01-01

    it to traditional utility planning. We then summarize theCoordination of utility transmission planning efforts helpedof planning for reliability across multiple utilities.

  4. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    Estimates of Congestion Costs. The Electricity Journal 17,Incremental Transmission Costs Due to Wind Power. Rockville,and Intermittency Really Cost? Supply Curves for Electricity

  5. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01

    Transmission Cost Incremental Generation as Only BeneficiaryUnit of Incremental Generation Equipment Cost Assumptions2003 Least Cost Resource Plan Wind Generation. Xcel Energy

  6. Excitonic gap, phase transition, and quantum Hall effect in graphene

    E-Print Network [OSTI]

    V. P. Gusynin; V. A. Miransky; S. G. Sharapov; I. A. Shovkovy

    2006-11-23

    We suggest that physics underlying the recently observed removal of sublattice and spin degeneracies in graphene in a strong magnetic field describes a phase transition connected with the generation of an excitonic gap. The experimental form of the Hall conductivity is reproduced and the main characteristics of the dynamics are described. Predictions of the behavior of the gap as a function of temperature and a gate voltage are made.

  7. Computation of radiative heat transport across a nanoscale vacuum gap

    SciTech Connect (OSTI)

    Budaev, Bair V. Bogy, David B.

    2014-02-10

    Radiation heat transport across a vacuum gap between two half-spaces is studied. By consistently applying only the fundamental laws of physics, we obtain an algebraic equation that connects the temperatures of the half-spaces and the heat flux between them. The heat transport coefficient generated by this equation for such structures matches available experimental data for nanoscale and larger gaps without appealing to any additional specific mechanisms of energy transfer.

  8. Hydrogeologic Model for the Gable Gap Area, Hanford Site

    SciTech Connect (OSTI)

    Bjornstad, Bruce N.; Thorne, Paul D.; Williams, Bruce A.; Last, George V.; Thomas, Gregory S.; Thompson, Michael D.; Ludwig, Jami L.; Lanigan, David C.

    2010-09-30

    Gable Gap is a structural and topographic depression between Gable Mountain and Gable Butte within the central Hanford Site. It has a long and complex geologic history, which includes tectonic uplift synchronous with erosional downcutting associated with the ancestral Columbia River during both Ringold and Cold Creek periods, and by the later Ice Age (mostly glacial Lake Missoula) floods. The gap was subsequently buried and partially backfilled by mostly coarse-grained, Ice Age flood deposits (Hanford formation). Erosional remnants of both the Ringold Formation and Cold Creek unit locally underlie the high-energy flood deposits. A large window exists in the gap where confined basalt aquifers are in contact with the unconfined suprabasalt aquifer. Several paleochannels, of both Hanford and Ringold Formation age, were eroded into the basalt bedrock across Gable Gap. Groundwater from the Central Plateau presently moves through Gable Gap via one or more of these shallow paleochannels. As groundwater levels continue to decline in the region, groundwater flow may eventually be cut off through Gable Gap.

  9. Investigating the book-tax income gap : factors which affect the gap and details regarding its most significant component

    E-Print Network [OSTI]

    Seidman, Jeri

    2008-01-01

    (cont.) In total, my thesis suggests that recent changes in the book-tax income gap may be exogenous and transitory, due to changes to the calculation of book income, general business conditions or other factors which ...

  10. Momentum dependence of the superconducting gap and in-gap states in MgB2 multiband superconductor

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

    Mou, Daixiang; Jiang, Rui; Taufour, Valentin; Bud'ko, S. L.; Canfield, P. C.; Kaminski, Adam

    2015-06-29

    We use tunable laser-based angle-resolved photoemission spectroscopy to study the electronic structure of the multiband superconductor MgB2. These results form the baseline for detailed studies of superconductivity in multiband systems. We find that the magnitude of the superconducting gap on both ? bands follows a BCS-like variation with temperature with ?0 ~ 7meV. Furthermore, the value of the gap is isotropic within experimental uncertainty and in agreement with a pure s-wave pairing symmetry. We observe in-gap states confined to kF of the ? band that occur at some locations of the sample surface. As a result, the energy of thismore »excitation, ~ 3 meV, was found to be somewhat larger than the previously reported gap on ? Fermi sheet and therefore we cannot exclude the possibility of interband scattering as its origin.« less

  11. Application of High-Angle Annular Dark Field Scanning Transmission

    E-Print Network [OSTI]

    Utsunomiya, Satoshi

    Application of High-Angle Annular Dark Field Scanning Transmission Electron Microscopy, Scanning Transmission Electron Microscopy-Energy Dispersive X-ray Spectrometry, and Energy-Filtered Transmission at the nanoscale. Atomic-scale techniques, such as conventional transmission electron microscopy, although powerful

  12. Transmission capacity of CDMA ad hoc networks Steven Weber

    E-Print Network [OSTI]

    de Veciana, Gustavo

    Transmission capacity of CDMA ad hoc networks Steven Weber Dept. of ECE Drexel University and tolerate co-located simultaneous transmissions. We develop analytic results on the transmission capacity of a CDMA ad hoc network. Transmission capacity is defined as the maximum permissible density

  13. Optimal Transmission Radius for Flooding in Large Scale Sensor Networks

    E-Print Network [OSTI]

    Krishnamachari, Bhaskar

    1 Optimal Transmission Radius for Flooding in Large Scale Sensor Networks Marco Z´u~niga Z. If the transmission radius is not set optimally, the flooded packet may be holding the transmission medium for longer periods than are necessary, reducing overall network throughput. We analyze the impact of the transmission

  14. Hydraulic system for a ratio change transmission

    DOE Patents [OSTI]

    Kalns, Ilmars (Northville, MI)

    1981-01-01

    Disclosed is a drive assembly (10) for an electrically powered vehicle (12). The assembly includes a transaxle (16) having a two-speed transmission (40) and a drive axle differential (46) disposed in a unitary housing assembly (38), an oil-cooled prime mover or electric motor (14) for driving the transmission input shaft (42), an adapter assembly (24) for supporting the prime mover on the transaxle housing assembly, and a hydraulic system (172) providing pressurized oil flow for cooling and lubricating the electric motor and transaxle and for operating a clutch (84) and a brake (86) in the transmission to shift between the two-speed ratios of the transmission. The adapter assembly allows the prime mover to be supported in several positions on the transaxle housing. The brake is spring-applied and locks the transmission in its low-speed ratio should the hydraulic system fail. The hydraulic system pump is driven by an electric motor (212) independent of the prime mover and transaxle.

  15. Unpredictability and the transmission of numbers

    E-Print Network [OSTI]

    John M. Myers; F. Hadi Madjid

    2015-08-05

    Curiously overlooked in physics is its dependence on the transmission of numbers. For example the transmission of numerical clock readings is implicit in the concept of a coordinate system. The transmission of numbers and other logical distinctions is often achieved over a computer-mediated communications network in the face of an unpredictable environment. By unpredictable we mean something stronger than the spread of probabilities over given possible outcomes, namely an opening to unforeseeable possibilities. Unpredictability, until now overlooked in theoretical physics, makes the transmission of numbers interesting. Based on recent proofs within quantum theory that provide a theoretical foundation to unpredictability, here we show how regularities in physics rest on a background of channels over which numbers are transmitted. As is known to engineers of digital communications, numerical transmissions depend on coordination reminiscent of the cycle of throwing and catching by players tossing a ball back and forth. In digital communications, the players are computers, and the required coordination involves unpredictably adjusting "live clocks" that step these computers through phases of a cycle. We show how this phasing, which we call `logical synchronization,' constrains number-carrying networks, and, if a spacetime manifold in invoked, put "stripes" on spacetime. Via its logically synchronized channels, a network of live clocks serves as a reference against which to locate events. Such a network in any case underpins a coordinate frame, and in some cases the direct use of a network can be tailored to investigate an unpredictable environment. Examples include explorations of gravitational variations near Earth.

  16. Downhole transmission system comprising a coaxial capacitor

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Pixton, David S. (Lehi, UT); Johnson, Monte L. (Orem, UT); Bartholomew, David B. (Springville, UT); Hall, Jr., H. Tracy (Provo, UT); Rawle, Michael (Springville, UT)

    2011-05-24

    A transmission system in a downhole component comprises a plurality of data transmission elements. A coaxial cable having an inner conductor and an outer conductor is disposed within a passage in the downhole component such that at least one capacitor is disposed in the passage and having a first terminal coupled to the inner conductor and a second terminal coupled to the outer conductor. Preferably the transmission element comprises an electrically conducting coil. Preferably, within the passage a connector is adapted to electrically connect the inner conductor of the coaxial cable and the lead wire. The coaxial capacitor may be disposed between and in electrically communication with the connector and the passage. In another embodiment a connector is adapted to electrical connect a first and a second portion of the inner conductor of the coaxial cable and a coaxial capacitor is in electrical communication with the connector and the passage.

  17. Single transmission line data acquisition system

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV)

    1984-01-01

    A single transmission line interrogated multiple channel data acquisition system is provided in which a plurality of remote station/sensors monitor specific process variables and transmit measurement values over the single transmission line to a master station when addressed by the master station. Power for all remote stations (up to 980) is provided by driving the line with constant voltage supplied from the master station and automatically maintained independent of the number of remote stations directly connected to the line. The transmission line can be an RG-62 coaxial cable with lengths up to about 10,000 feet with branches up to 500 feet. The remote stations can be attached randomly along the line. The remote stations can be scanned at rates up to 980 channels/second.

  18. Economic analysis of the N-1 reliable unit commitment and transmission switching problem using duality concepts

    E-Print Network [OSTI]

    O’Neill, Richard P.; Hedman, Kory W.; Krall, Eric A.; Papavasiliou, Anthony; Oren, Shmuel S.

    2010-01-01

    nomic operations of the electric transmission grid. It alsoelectric network optimization models. Optimal transmission

  19. Gap formation and stability in non-isothermal protoplanetary discs

    E-Print Network [OSTI]

    Les, Robert

    2015-01-01

    Several observations of transition discs show lopsided dust-distributions. A potential explanation is the formation of a large-scale vortex acting as a dust-trap at the edge of a gap opened by a giant planet. Numerical models of gap-edge vortices have thus far employed locally isothermal discs, but the theory of this vortex-forming or `Rossby wave' instability was originally developed for adiabatic discs. We generalise the study of planetary gap stability to non-isothermal discs using customised numerical simulations of disc-planet systems where the planet opens an unstable gap. We include in the energy equation a simple cooling function with cooling timescale $t_c=\\beta\\Omega_k^{-1}$, where $\\Omega_k$ is the Keplerian frequency, and examine the effect of $\\beta$ on the stability of gap edges and vortex lifetimes. We find increasing $\\beta$ lowers the growth rate of non-axisymmetric perturbations, and the dominant azimuthal wavenumber $m$ decreases. We find a quasi-steady state consisting of one large-scale, ...

  20. Fault-Tolerant Exact State Transmission

    E-Print Network [OSTI]

    Zhao-Ming Wang; Lian-Ao Wu; Michele Modugno; Wang Yao; Bin Shao

    2012-05-02

    We show that a category of one-dimensional XY-type models may enable high-fidelity quantum state transmissions, regardless of details of coupling configurations. This observation leads to a fault- tolerant design of a state transmission setup. The setup is fault-tolerant, with specified thresholds, against engineering failures of coupling configurations, fabrication imperfections or defects, and even time-dependent noises. We propose the implementation of the fault-tolerant scheme using hard-core bosons in one-dimensional optical lattices.