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


1

Series Transmission Line Transformer  

DOE Patents [OSTI]

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.

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

2004-06-29T23:59:59.000Z

2

Electric Transmission Lines (Nebraska)  

Broader source: Energy.gov [DOE]

The Public Service Commission has jurisdiction over all electricity transmission lines crossing over or under railroad tracks at public highway crossings. This section contains general regulations...

3

Transmission Line Security Monitor  

ScienceCinema (OSTI)

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.

None

2013-05-28T23:59:59.000Z

4

Electric Transmission Lines (Iowa)  

Broader source: Energy.gov [DOE]

Electric transmission lines capable of operating at 69 kV or greater cannot be constructed along, across, or over any public highways or grounds outside of cities without a franchise from the...

5

Transmission line capital costs  

SciTech Connect (OSTI)

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.

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

1995-05-01T23:59:59.000Z

6

Printed circuit dispersive transmission line  

DOE Patents [OSTI]

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.

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

1991-08-27T23:59:59.000Z

7

Omega Transmission Lines  

E-Print Network [OSTI]

In this paper, we show how bi-anisotropic media with omega-type response can be realized using periodically loaded transmission lines. General conditions for the needed unit cell circuit block are derived. Also, an implementation is shown and analyzed.

Vehmas, Joni

2013-01-01T23:59:59.000Z

8

Drill string transmission line  

DOE Patents [OSTI]

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.

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)

2006-03-28T23:59:59.000Z

9

Electrical transmission line diametrical retainer  

DOE Patents [OSTI]

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.

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)

2004-12-14T23:59:59.000Z

10

Transmission Lines Emulating Moving Media  

E-Print Network [OSTI]

In this paper, we show how the electromagnetic phenomena in moving magnetodielectric media can be emulated using artificial composite structures at rest. In particular, we introduce nonreciprocal periodically loaded transmission lines which support waves obeying the same rules as plane electromagnetic waves in moving media. Because the actual physical structure is at rest, in these transmission lines there are no fundamental limitations on the velocity values, which may take values larger than the speed of light or even complex values (considering complex amplitudes in the time-harmonic regime). An example circuit of a unit cell of a "moving" transmission line is presented and analyzed both numerically and experimentally. The special case of composite right/left handed host line is also studied numerically. Besides the fundamental interest, the study is relevant for potential applications in realizing engineered materials for various transformations of electromagnetic fields.

Vehmas, Joni; Tretyakov, Sergei

2014-01-01T23:59:59.000Z

11

Pulse shaping with transmission lines  

DOE Patents [OSTI]

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.

Wilcox, Russell B. (Oakland, CA)

1987-01-01T23:59:59.000Z

12

Pulse shaping with transmission lines  

DOE Patents [OSTI]

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.

Wilcox, R.B.

1985-08-15T23:59:59.000Z

13

Florida Electric Transmission Line Siting Act (Florida)  

Broader source: Energy.gov [DOE]

The Transmission Line Siting Act (TLSA) is the state’s centralized process for licensing electrical transmission lines which; (a) are 230 kV or larger; (b) cross a county line; and, (c) are 15...

14

Coiled transmission line pulse generators  

DOE Patents [OSTI]

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.

McDonald, Kenneth Fox (Columbia, MO)

2010-11-09T23:59:59.000Z

15

Superconducting transmission line particle detector  

DOE Patents [OSTI]

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.

Gray, K.E.

1988-07-28T23:59:59.000Z

16

Superconducting transmission line particle detector  

DOE Patents [OSTI]

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.

Gray, Kenneth E. (Naperville, IL)

1989-01-01T23:59:59.000Z

17

Transmission Line Security Monitor: Final Report  

SciTech Connect (OSTI)

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.

John Svoboda

2011-04-01T23:59:59.000Z

18

Detonator comprising a nonlinear transmission line  

DOE Patents [OSTI]

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.

Elizondo-Decanini, Juan M

2014-12-30T23:59:59.000Z

19

Grand Coulee Transmission Line Replacement Project  

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

by the Bureau of Reclamation to design and construct six new 500-kV overhead transmission lines at Grand Coulee Dam. BPA will replace the existing underground transmission...

20

Electric Transmission Line Flashover Prediction System  

E-Print Network [OSTI]

Center since 1996 PSERC #12;Power Systems Engineering Research Center Electric Transmission LineElectric Transmission Line Flashover Prediction System Ph.D. Thesis and Final Project Report Power@asu.edu Power Systems Engineering Research Center This is a project report from the Power Systems Engineering

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


21

Electrical Transmission Line Diametrical Retention Mechanism  

DOE Patents [OSTI]

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.

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)

2006-01-03T23:59:59.000Z

22

MATHEMATICAL ANALYSIS OF CONDUCTING AND SUPERCONDUCTING TRANSMISSION LINES  

E-Print Network [OSTI]

MATHEMATICAL ANALYSIS OF CONDUCTING AND SUPERCONDUCTING TRANSMISSION LINES ANNE-SOPHIE BONNET propagation in the microstrip transmission lines used in microelectronics. In the first part, the case of the perfectly conducting strip. Key words. superconducting transmission lines, waveguides, spectral analysis

Ramdani, Karim - Institut de Mathématiques �lie Cartan, Université Henri Poincaré

23

Waveform Relaxation Technique for Longitudinal Partitioning of Transmission Lines  

E-Print Network [OSTI]

Waveform Relaxation Technique for Longitudinal Partitioning of Transmission Lines Martin Gander problem for multiple coupled transmission lines by a so-called transverse partitioning technique. The WR mode transmission line problems. Previous longitudinal partitioning work using the classical WR

Gander, Martin J.

24

Concurrent Wind Cooling in Power Transmission Lines  

SciTech Connect (OSTI)

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.

Jake P Gentle

2012-08-01T23:59:59.000Z

25

Load-resistant coaxial transmission line  

DOE Patents [OSTI]

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.

Hall, David R.; Fox, Joe

2006-01-03T23:59:59.000Z

26

EIS-0447: Champlain Hudson Power Express Transmission Line Project...  

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

7: Champlain Hudson Power Express Transmission Line Project, New York EIS-0447: Champlain Hudson Power Express Transmission Line Project, New York Summary This EIS evaluates the...

27

EA-1880: Big Bend to Witten Transmission Line Project, South...  

Office of Environmental Management (EM)

880: Big Bend to Witten Transmission Line Project, South Dakota EA-1880: Big Bend to Witten Transmission Line Project, South Dakota Summary The USDA Rural Utilities Service, with...

28

Request for Information on Permitting of Transmission Lines:...  

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

Request for Information on Permitting of Transmission Lines: Federal Register Notice Volume 77, No. 38 - Feb. 27, 2012 Request for Information on Permitting of Transmission Lines:...

29

Electric Transmission Line Siting Compact  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.Program - LibbyofThisStatement Tuesday,DepartmentTheandElectric Transmission

30

EC Transmission Line Risk Identification and Analysis  

SciTech Connect (OSTI)

The purpose of this document is to assist in evaluating and planning for the cost, schedule, and technical project risks associated with the delivery and operation of the EC (Electron cyclotron) transmission line system. In general, the major risks that are anticipated to be encountered during the project delivery phase associated with the implementation of the Procurement Arrangement for the EC transmission line system are associated with: (1) Undefined or changing requirements (e.g., functional or regulatory requirements) (2) Underperformance of prototype, first unit, or production components during testing (3) Unavailability of qualified vendors for critical components Technical risks associated with the design and operation of the system are also identified.

Bigelow, Tim S [ORNL

2012-04-01T23:59:59.000Z

31

CHARACTERIZING LOSSES IN MICROSTRIP TRANSMISSION LINES Rashmi Pathak  

E-Print Network [OSTI]

CHARACTERIZING LOSSES IN MICROSTRIP TRANSMISSION LINES by Rashmi Pathak A dissertation submitted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Transmission Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Engineering) at the UNIVERSITY OF WISCONSIN­MADISON Summer 2005 #12;i Characterizing Losses in Transmission

Timbie, Peter

32

Transmission line environmental assessment guidance document  

SciTech Connect (OSTI)

Since 1939, U.S. utility companies have been required to obtain a Presidential Permit to construct electric transmission lines that cross a U.S. border and connect with a foreign utility. The purpose of this document is to provide Presidential Permit applicants with two types of guidance: (1) on the type of environmental and project descriptive information needed to assess the potential impacts of the proposed and alternative actions and (2) on compliance with applicable federal and state regulations. The main three chapters present information on the purpose and content of this document (Chapter 1); legislative, regulatory, and consultation requirements for transmission line interconnect projects (Chapter 2); and identification of basic transmission system design parameters and environmental data requirements for analysis of potential impacts of the proposed action (Chapter 3). Chapter 3 also includes information on possible techniques or measures to mitigate impacts. Appendix A presents an overview of NEPA requirements and DOE`s implementing procedures. Appendix B summarizes information on legislation that may be applicable to transmission line projects proposed in Presidential Permit applications.

Jackson, J.; Pentecost, E.; Muzzarelli, J.

1994-01-01T23:59:59.000Z

33

Radio-Frequency Interference (RFI) From Extra-High-Voltage (EHV) Transmission Lines  

E-Print Network [OSTI]

-current (HVAC) transmission lines; high-voltage direct-current (HVDC) transmission lines will be addressed

Ellingson, Steven W.

34

Mode conversation losses in overmolded millimeter wave transmission lines  

E-Print Network [OSTI]

Millimeter wave transmission lines are integral components for many important applications like nuclear fusion and NMR spectroscopy. In low loss corrugated transmission lines propagating the HE,1 mode with a high waveguide ...

Tax, David S. (David Samuel)

2008-01-01T23:59:59.000Z

35

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...

36

EIS-0325: Schultz-Hanford Area Transmission Line Project, WA  

Broader source: Energy.gov [DOE]

BPA proposes to construct a new 500-kilovolt (kV) transmission line in central Washington. This project would increase transmission system capacity north of Hanford.

37

Giant vacuum forces via transmission lines  

E-Print Network [OSTI]

Quantum electromagnetic fluctuations induce forces between neutral particles, known as the van der Waals (vdW) and Casimir interactions. These fundamental forces, mediated by virtual photons from the vacuum, play an important role in basic physics and chemistry, and in emerging technologies involving, e.g. micro-electromechanical systems or quantum information processing. Here we show that these interactions can be enhanced by many orders of magnitude upon changing the character of the mediating vacuum-modes. By considering two polarizable particles in the vicinity of any standard electric transmission line, along which photons can propagate in one dimension (1d), we find a much stronger and longer-range interaction than in free-space. This enhancement may have profound implications on many-particle and bulk systems, and impact the quantum technologies mentioned above. The predicted giant vacuum force is estimated to be measurable in a coplanar waveguide line.

Ephraim Shahmoon; Igor Mazets; Gershon Kurizki

2014-07-23T23:59:59.000Z

38

Free Vibrations of Coupled Spans of Overhead Transmission Lines  

E-Print Network [OSTI]

damage to the cables. Figure 1: Overhead transmission lines. Spans are suspended between towers fromFree Vibrations of Coupled Spans of Overhead Transmission Lines Sjoerd W. Rienstra Department transmission lines is studied. It is shown that the natural vibration is the gravity mode, which is free from

Eindhoven, Technische Universiteit

39

Reference: RGL 83-09 Subject: POWER TRANSMISSION LINES  

E-Print Network [OSTI]

Reference: RGL 83-09 Subject: POWER TRANSMISSION LINES Title: MARKING OF AERIAL POWER TRANSMISSION. 1. The marking of aerial power transmission lines, cables, and structures over the navigable waters LINES, CABLES, & STRUCTURES Issued: 07/13/83 Expires: 12/31/85 Originator: DAEN-CWO-N Description: ARMY

US Army Corps of Engineers

40

Using Transmission Lines for Global On-Chip Communication  

E-Print Network [OSTI]

1 Using Transmission Lines for Global On-Chip Communication Aaron Carpenter, Jianyun Hu, Jie Xu-switched network-on-chip a less attractive option. An alternative solution uses well-engineered transmission lines as communication links. These transmission lines, along with simple, practical circuits using modern CMOS technol

Huang, Michael C.

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


41

Asymmetric parametric amplification in nonlinear left-handed transmission lines  

E-Print Network [OSTI]

Asymmetric parametric amplification in nonlinear left-handed transmission lines David A. Powell amplification in nonlinear left-handed transmission lines, which serve as model systems for nonlinear negative-handed regime. © 2009 American Institute of Physics. DOI: 10.1063/1.3089842 Left-handed transmission lines

42

Nonlinear Free Vibrations of Coupled Spans of Overhead Transmission Lines  

E-Print Network [OSTI]

Nonlinear Free Vibrations of Coupled Spans of Overhead Transmission Lines Sjoerd W. Rienstra transmission lines is studied. It is shown that the natural vibration is the gravity mode, of which of the phenomenon of galloping, which is a high amplitude periodic oscillation of overhead transmission lines due

Rienstra, Sjoerd W.

43

Multifrequency Wilkinson Power Divider Using Microstrip Nonuniform Transmission Lines  

E-Print Network [OSTI]

Multifrequency Wilkinson Power Divider Using Microstrip Nonuniform Transmission Lines Mohammad desired frequencies. The proposed structure contains two Microstrip Nonuniform Transmission Lines (MNTLs­6] and using composite right/left-handed transmission line (CRLH) [7]. The main disadvantage of multistage

Paris-Sud XI, Université de

44

New approach for modelling distributed MEMS transmission lines  

E-Print Network [OSTI]

New approach for modelling distributed MEMS transmission lines K. Topalli, M. Unlu, S. Demir, O for the distributed MEMS transmission line (DMTL) structures. In this new model, the MEMS bridges that are used as the loading elements of the DMTL structures are represented as low-impedance transmission lines, rather than

Akin, Tayfun

45

Dispersion-free radial transmission lines  

DOE Patents [OSTI]

A dispersion-free radial transmission line ("DFRTL") preferably for linear accelerators, having two plane conductors each with a central hole, and an electromagnetically permeable material ("EPM") between the two conductors and surrounding a channel connecting the two holes. At least one of the material parameters of relative magnetic permeability, relative dielectric permittivity, and axial width of the EPM is varied as a function of radius, so that the characteristic impedance of the DFRTL is held substantially constant, and pulse transmission therethrough is substantially dispersion-free. Preferably, the EPM is divided into concentric radial sections, with the varied material parameters held constant in each respective section but stepwise varied between sections as a step function of the radius. The radial widths of the concentric sections are selected so that pulse traversal time across each section is the same, and the varied material parameters of the concentric sections are selected to minimize traversal error.

Caporaso, George J. (Livermore, CA); Nelson, Scott D. (Patterson, CA)

2011-04-12T23:59:59.000Z

46

Nondestructive Testing of Overhead Transmission Lines: Numerical and Experimental Investigation  

E-Print Network [OSTI]

Overhead transmission lines are periodically inspected using both on-ground and helicopter-aided visual inspection. Factors including sun glare, cloud cover, close proximity to power lines and the rapidly changing visual circumstances make airborne...

Kulkarni, Salil Subhash

2011-02-22T23:59:59.000Z

47

Structural Optimization of High Voltage Transmission Line Towers considering  

E-Print Network [OSTI]

Structural Optimization of High Voltage Transmission Line Towers considering Continuum and Discrete/or to common designs largely repeated (e.g. automotive compo- nents), and high voltage transmission towers can than conventional designs of high voltage transmission line towers. The optimization model proposed

Colominas, Ignasi

48

Radio frequency communication system utilizing radiating transmission lines  

DOE Patents [OSTI]

A radio communication system for use in tunnels, mines, buildings or other shielded locations in which a pair of radiating transmission lines (30), (31) extend through such location in spaced coextensive relation to each other. Each transmission line (30), (31) has at least one unidirectional amplifier (32), (33) interposed therein with the sense of the unidirectional amplifier (32) of one transmission line (30) being opposite to the sense of the unidirectional amplifier (33) of the other transmission line (31). Each of the amplifiers (32), (33) has a gain which is less than the coupling loss between the transmission lines (30), (31). Two or more mobile transceivers (35) in the location served by the system are coupled to the transmission lines (30), (31) by electromagnetic wave propagation in space in order to communicate directly with each other at a given radio frequency within the frequency range of the system.

Struven, Warren C. (San Carlos, CA)

1984-01-01T23:59:59.000Z

49

EIS-0317: Kangley-Echo Lake Transmission Line Project  

Broader source: Energy.gov [DOE]

This EIS analyzes BPA's proposal to build a new transmission line to accommodate increasing demand for electricity and ensure reliability in the Puget Sound area.

50

High voltage overhead long transmission line design and fault analysis.  

E-Print Network [OSTI]

??The goal of this project is to design a reliable high voltage overhead long transmission line that satisfies specific design criteria including voltage regulation, efficiency,… (more)

Elzain, Mohamed Ali

2011-01-01T23:59:59.000Z

51

EIS-0507: Boardman-Hemingway Transmission Line, Oregon and Idaho...  

Office of Environmental Management (EM)

Transmission Line, Oregon and Idaho SUMMARY The Bureau of Land Management and the U.S. Forest Service are preparing, with DOE's Bonneville Power Administration (BPA) as a...

52

Notice of Availability of Plains & Eastern Clean Line Transmission...  

Energy Savers [EERE]

in Oklahoma and Tennessee; an approximately 720-mile high voltage direct current (HVDC) transmission line; an alternating current (AC) collection system; and access roads....

53

Online Transmission Line Loadability Assessment Using Synchrophasor Measurements  

E-Print Network [OSTI]

a stable operation. Transmission line loading limits are also essential to deter- mine locational marginal loading margins provide a useful metric to operate the power sys- tem to satisfy demands while ensuring prices in power markets. Therefore, the assessment of transmission line loadability under various

Liberzon, Daniel

54

EIS-0101: Thermopolis, Alcova, Casper Transmission Line Project  

Broader source: Energy.gov [DOE]

The Western Area Power Administration developed this statement to evaluate the environmental impacts of constructing, operating and maintaining a 230-kilovolt transmission line between Thermopolis, Wyoming, and Alcova, Wyoming, and a 230/345-kilovolt transmission line between Alcova, Wyoming, and Casper, Wyoming.

55

Hyperreal Waves on Transfinte, Terminated, Distortionless and Lossless, Transmission Lines  

E-Print Network [OSTI]

A prior work (see Chapter 8 of the book, ``Graphs and Networks: Transfinite and Nonstandard,'' Birkhauser-Boston, Cambridge, Mass., USA, 2004) examined the propagation of an electromagnetic wave on a transfinite transmission line, transfinite in the sense that infinitely many one-way infinite transmission lines are connected in cascade. That there are infinitely many such one-way infinite lines results in the wave propagating without ever reflecting at some discontinuity. The present work examines the cascade where the cascade terminates after only finitely many one-way infinite transmission lines, with the result that reflected waves are now produced at both the far end as well as at the initial end of the transfinite transmission line. The question of whether the reflected waves are infini tesimal or appreciable and whether they sum to an infinitesimal or appreciable amount are resolved for both distortionless and lossless lines. Finally, the generalizations to higher ranks of transfiniteness is briefly summarized.

A. H. Zemanian

2004-06-10T23:59:59.000Z

56

Stand-off transmission lines and method for making same  

DOE Patents [OSTI]

Standoff transmission lines in an integrated circuit structure are formed by etching away or removing the portion of the dielectric layer separating the microstrip metal lines and the ground plane from the regions that are not under the lines. The microstrip lines can be fabricated by a subtractive process of etching a metal layer, an additive process of direct laser writing fine lines followed by plating up the lines or a subtractive/additive process in which a trench is etched over a nucleation layer and the wire is electrolytically deposited. Microstrip lines supported on freestanding posts of dielectric material surrounded by air gaps are produced. The average dielectric constant between the lines and ground plane is reduced, resulting in higher characteristic impedance, less crosstalk between lines, increased signal propagation velocities, and reduced wafer stress. 16 figures.

Tuckerman, D.B.

1991-05-21T23:59:59.000Z

57

Stand-off transmission lines and method for making same  

DOE Patents [OSTI]

Standoff transmission lines in an integrated circuit structure are formed by etching away or removing the portion of the dielectric layer separating the microstrip metal lines and the ground plane from the regions that are not under the lines. The microstrip lines can be fabricated by a subtractive process of etching a metal layer, an additive process of direct laser writing fine lines followed by plating up the lines or a subtractive/additive process in which a trench is etched over a nucleation layer and the wire is electrolytically deposited. Microstrip lines supported on freestanding posts of dielectric material surrounded by air gaps are produced. The average dielectric constant between the lines and ground plane is reduced, resulting in higher characteristic impedance, less crosstalk between lines, increased signal propagation velocities, and reduced wafer stress.

Tuckerman, David B. (Livermore, CA)

1991-01-01T23:59:59.000Z

58

Electrical and Biological Effects of Transmission Lines: A Review.  

SciTech Connect (OSTI)

This review describes the electrical properties of a-c and d-c transmission lines and the resulting effects on plants, animals, and people. Methods used by BPA to mitigate undesirable effects are also discussed. Although much of the information in this review pertains to high-voltage transmission lines, information on distribution lines and electrical appliances is included. The electrical properties discussed are electric and magnetic fields and corona: first for alternating-current (a-c) lines, then for direct current (d-c).

Lee, Jack M.

1989-06-01T23:59:59.000Z

59

EIS-0106: Great Falls-Conrad Transmission Line Project, Montana  

Broader source: Energy.gov [DOE]

The Western Area Power Administration prepared this EIS to evaluate the environmental impacts of the construction and operation of a 230-kilovolt transmission line from Great Falls, Montana, to Conrad, Montana.

60

EA-1891: Alvey-Fairview Transmission Line Rebuild Project, Oregon  

Broader source: Energy.gov [DOE]

This EA evaluates the environmental impacts of a proposal to rebuild DOE’s Bonneville Power Administration’s Alvey-Fairview No. 1 230-kV transmission line located between Eugene, Oregon, and Coquille, Oregon.

Note: This page contains sample records for the topic "lines transmission line" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

COMPLETE FAULT ANALYSIS FOR LONG TRANSMISSION LINE USING  

E-Print Network [OSTI]

line are the data sources for this scheme. The paper derives a specific feature which equals to zero sys- tem based approach is described in (Girgis and Johns, 1996) and a phasor measurement unit (PMU of the data for this approach. Data from both ends of transmission line are used to achieve high accuracy

62

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.

63

EIS-0499: Great Northern Transmission Line Project, Minnesota  

Broader source: Energy.gov [DOE]

This EIS will evaluate the potential environmental impacts of a DOE proposal to grant a Presidential permit to Minnesota Power to construct, operate, maintain, and connect a new 750-megawatt electric transmission system across the U.S.-Canada border. The proposed 220 mile transmission line would cross the border near Roseau, Minnesota, and continue to Grand Rapids, Minnesota.

64

Multimode circuit QED with hybrid metamaterial transmission lines  

E-Print Network [OSTI]

Quantum transmission lines are a central to superconducting and hybrid quantum computing. Parallel to these developments are those of left-handed meta-materials. They have a wide variety of applications in photonics from the microwave to the visible range such as invisibility cloaks and perfect flat lenses. For classical guided microwaves, left-handed transmission lines have been proposed and studied on the macroscopic scale. We combine these ideas in presenting a left-handed/right-handed hybrid transmission line for applications in quantum optics on a chip. The resulting system allows circuit QED to reach a new regime: multi-mode ultra-strong coupling. Out of the many potential applications of this novel device, we discuss two; the preparation of multipartite entangled states and its use as a quantum simulator for the spin-boson model where a quantum phase transition is reached up to finite size-effects.

Daniel J. Egger; Frank K. Wilhelm

2013-11-07T23:59:59.000Z

65

Southline Transmission Line | 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 CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty Ltd JumpGTZHolland, Illinois:5717551°Farms Ltd Jump to:Southline Transmission

66

Discontinuities in transmission lines and wave guides  

E-Print Network [OSTI]

transmission 11ne: nd cosx1sl cables have discrete support and separators. These suoports may be either d1electrics or conductors. In general the support" are desicned to introduce no discontinuity at one freouenCy, hut at other frequencies, they do...=- formin~ ths t of s he 1 ix. Co-xl l cable HC-6 r ansmi as 1 on 1 1 re in t hs f orm 5/U with t 1 e 1nner conductor in the form of s helix with ch:racter1st1c 1mpedance of 95C ohms has been manufactured. The aut hor hs c made h1ph- 1mpedance cable...

Mathis, Harold Fletcher

2012-06-07T23:59:59.000Z

67

Damping of bending waves in truss beams by electrical transmission lines with PZT actuators  

E-Print Network [OSTI]

Damping of bending waves in truss beams by electrical transmission lines with PZT actuators F. dell of the truss beam with an electrical transmission line by a line distribution of PZT actuators. It has been-order transmission line, and that such a line is not suitable to damp bending waves. In the present paper, we propose

Boyer, Edmond

68

RESONANCES FOR MICROSTRIP TRANSMISSION LINES HABIB AMMARI y AND FAOUZI TRIKI y  

E-Print Network [OSTI]

RESONANCES FOR MICROSTRIP TRANSMISSION LINES #3; HABIB AMMARI y AND FAOUZI TRIKI y Abstract of the line goes to zero. Key words. microstrip transmission lines, waveguides, resonances, characteristic in mi- crostrip transmission lines mounted on planar open waveguides. Microstrip transmis- sion lines

Ammari, Habib

69

Characterization of Co-planar Silicon Transmission Lines with and without Slow-waveEffect  

E-Print Network [OSTI]

Characterization of Co-planar Silicon Transmission Lines with and without Slow-waveEffect Woopoung and package transmission lines has been explained showing that the slow-wave mode cannot be represented only][2][3][4], characterization methods for package transmission lines have been applied to silicon transmission lines under

Swaminathan, Madhavan

70

TLSync: Support for Multiple Fast Barriers Using On-Chip Transmission Lines  

E-Print Network [OSTI]

TLSync: Support for Multiple Fast Barriers Using On-Chip Transmission Lines Jungju Oh jungju in a transmission-line broadcast network, thus leaving the transmission line network free for non-modulated (base--Interconnection architectures General Terms Design, Performance Keywords Multi-core, Synchronization, Barrier, Transmission Line

Prvulovic, Milos

71

A Study on Crosstalk Analysis in Aggregative Transmission Lines with Turning Vias Tapobrata Bandyopadhyay1  

E-Print Network [OSTI]

A Study on Crosstalk Analysis in Aggregative Transmission Lines with Turning Vias Tapobrata and signal integrity in high-speed signal channels is extremely important. Transmission lines and vias transmission lines (4 mil width) of different lengths arranged in bundles. The eight transmission line bundles

Swaminathan, Madhavan

72

PHYSICAL REVIEW B 88, 219904(E) (2013) Erratum: Parametric amplification in Josephson junction embedded transmission lines  

E-Print Network [OSTI]

embedded transmission lines [Phys. Rev. B 87, 144301 (2013)] Oded Yaakobi, Lazar Friedland, Chris Macklin

Friedland, Lazar

73

Wireless Sensor Network for Electric Transmission Line Monitoring  

SciTech Connect (OSTI)

Generally, federal agencies tasked to oversee power grid reliability are dependent on data from grid infrastructure owners and operators in order to obtain a basic level of situational awareness. Since there are many owners and operators involved in the day-to-day functioning of the power grid, the task of accessing, aggregating and analyzing grid information from these sources is not a trivial one. Seemingly basic tasks such as synchronizing data timestamps between many different data providers and sources can be difficult as evidenced during the post-event analysis of the August 2003 blackout. In this project we investigate the efficacy and cost effectiveness of deploying a network of wireless power line monitoring devices as a method of independently monitoring key parts of the power grid as a complement to the data which is currently available to federal agencies from grid system operators. Such a network is modeled on proprietary power line monitoring technologies and networks invented, developed and deployed by Genscape, a Louisville, Kentucky based real-time energy information provider. Genscape measures transmission line power flow using measurements of electromagnetic fields under overhead high voltage transmission power lines in the United States and Europe. Opportunities for optimization of the commercial power line monitoring technology were investigated in this project to enable lower power consumption, lower cost and improvements to measurement methodologies. These optimizations were performed in order to better enable the use of wireless transmission line monitors in large network deployments (perhaps covering several thousand power lines) for federal situational awareness needs. Power consumption and cost reduction were addressed by developing a power line monitor using a low power, low cost wireless telemetry platform known as the ''Mote''. Motes were first developed as smart sensor nodes in wireless mesh networking applications. On such a platform, it has been demonstrated in this project that wireless monitoring units can effectively deliver real-time transmission line power flow information for less than $500 per monitor. The data delivered by such a monitor has during the course of the project been integrated with a national grid situational awareness visualization platform developed by Oak Ridge National Laboratory. Novel vibration energy scavenging methods based on piezoelectric cantilevers were also developed as a proposed method to power such monitors, with a goal of further cost reduction and large-scale deployment. Scavenging methods developed during the project resulted in 50% greater power output than conventional cantilever-based vibrational energy scavenging devices typically used to power smart sensor nodes. Lastly, enhanced and new methods for electromagnetic field sensing using multi-axis magnetometers and infrared reflectometry were investigated for potential monitoring applications in situations with a high density of power lines or high levels of background 60 Hz noise in order to isolate power lines of interest from other power lines in close proximity. The goal of this project was to investigate and demonstrate the feasibility of using small form factor, highly optimized, low cost, low power, non-contact, wireless electric transmission line monitors for delivery of real-time, independent power line monitoring for the US power grid. The project was divided into three main types of activity as follows; (1) Research into expanding the range of applications for non-contact power line monitoring to enable large scale low cost sensor network deployments (Tasks 1, 2); (2) Optimization of individual sensor hardware components to reduce size, cost and power consumption and testing in a pilot field study (Tasks 3,5); and (3) Demonstration of the feasibility of using the data from the network of power line monitors via a range of custom developed alerting and data visualization applications to deliver real-time information to federal agencies and others tasked with grid reliability (Tasks 6,8)

Alphenaar, Bruce

2009-06-30T23:59:59.000Z

74

EA-1960: Townsite Solar Project Transmission Line, Clark County, Nevada  

Broader source: Energy.gov [DOE]

The Bureau of Land Management, with Western Area Power Administration as a cooperating agency, prepared an EA to evaluate potential impacts of a proposal to build and operate a 180-MW photovoltaic facility; a 220, 230, or 500 kV transmission line; and associated facilities in Clark County, Nevada.

75

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.

76

Number and propagation of line outages in cascading events in electric power transmission systems  

E-Print Network [OSTI]

of transmission lines. We estimate from observed utility data how transmission line outages propagate, and obtain is consistent with the utility data by using it to estimate the distribution of the total number of lines statistical behavior of cascading transmission line outages from standard utility data that records the times

Dobson, Ian

77

An Inverse Problem for Toeplitz Matrices and the Synthesis of Discrete Transmission Lines  

E-Print Network [OSTI]

An Inverse Problem for Toeplitz Matrices and the Synthesis of Discrete Transmission Lines Russel E and inverse problems for a transmission line which consists of piecewise constant components. Knowing the impulse response of the transmission line, we can calculate the capaci- tance taper of the line, and vice

Allen, Jont

78

Calculation of Ramp Response of Lossy Transmission Lines Using Two-port Network Functions  

E-Print Network [OSTI]

1 Calculation of Ramp Response of Lossy Transmission Lines Using Two-port Network Functions Payam-port representation of the transmission line and accounts for the output resistance of the driver and the line response of lossy transmission line which expands the reciprocal of transfer function of the system

Pedram, Massoud

79

Optimized Waveform Relaxation Methods for the Longitudinal Partitioning of Transmission Lines  

E-Print Network [OSTI]

1 Optimized Waveform Relaxation Methods for the Longitudinal Partitioning of Transmission Lines convergence. Here we consider transmission line circuits since they represent an important part of a Spice type circuit solver. For transmission lines, the coupling between different lines is relatively weak

Gander, Martin J.

80

Regulations for Electric Transmission and Fuel Gas Transmission Lines Ten or More Miles Long (New York)  

Broader source: Energy.gov [DOE]

Any person who wishes to construct an electric or gas transmission line that is more than ten miles long must file documents describing the construction plans and potential land use and...

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


81

ECEN 720 High-Speed Links Circuits and Systems Lab1 -Transmission Lines  

E-Print Network [OSTI]

1 ECEN 720 High-Speed Links Circuits and Systems Lab1 - Transmission Lines Objective To learn transmission lines and time-domain refectometer (TDR). Introduction Wires are used to transmit clocks and data data communication chip design, the wires are often treated as transmission lines. Proper transmission

Palermo, Sam

82

Analytical time domain electromagnetic field propagators and closed-form solutions for transmission lines  

E-Print Network [OSTI]

An analytical solution for the coupled telegrapher’s equations in terms of the voltage and current on a homogeneous lossy transmission line and multiconductor transmission line is presented. The resulting telegrapher’s equation solution is obtained...

Jeong, Jaehoon

2009-05-15T23:59:59.000Z

83

Non-Linear Transmission Lines for Pulse Shapingin Silicon Ehsan Afshari and Ali Hajimii  

E-Print Network [OSTI]

Non-Linear Transmission Lines for Pulse Shapingin Silicon Ehsan Afshari and Ali Hajimii California.Non-hear transmission lines (NLTLs)sharpening either of the rising or the Falling edge of a pulse have beenT. In this paper, the propagation of soliton waves in a non-linear transmission line will be studied. Then, we

Hajimiri, Ali

84

Transient Simulation of On-Chip Transmission Lines via Exact Pole Extraction  

E-Print Network [OSTI]

Transient Simulation of On-Chip Transmission Lines via Exact Pole Extraction Guoqing Chen and Eby G response at the far end of a transmission line is proposed in this paper. Unlike approximating the poles, on-chip interconnects exhibit significant transmission line behavior. An efficient solution

Friedman, Eby G.

85

Minimizing Simultaneous Switching Noise at Reduced Power with Power Transmission Lines for  

E-Print Network [OSTI]

Minimizing Simultaneous Switching Noise at Reduced Power with Power Transmission Lines for High] by replacing the power plane structure with a power transmission line (PTL). In this paper, a new power switching noise; power transmission line I. INTRODUCTION The rapid increase in data rates and transistor

Swaminathan, Madhavan

86

AN INFINITE DIMENSIONAL DESCRIPTOR SYSTEM MODEL FOR ELECTRICAL CIRCUITS WITH TRANSMISSION LINES  

E-Print Network [OSTI]

AN INFINITE DIMENSIONAL DESCRIPTOR SYSTEM MODEL FOR ELECTRICAL CIRCUITS WITH TRANSMISSION LINES TIMO REIS Abstract. In this paper a model of linear electrical circuits with transmission lines is de-coupled with the telegraph equations who describe the behavior of the transmission lines. The resulting system of equations

Reis, Timo

87

A new expression for the ground transient resistance matrix elements of multiconductor overhead transmission lines  

E-Print Network [OSTI]

transmission lines F. Rachidi a, *, S.L. Loyka b , C.A. Nucci c , M. Ianoz a a Swiss Federal Institute The ground impedance matrix elements of a multiconductor overhead transmission line do not have analytical-singular, and which describe, within the limits of transmission line theory, both the early-time and late

Loyka, Sergey

88

ECEN 720 High-Speed Links: Circuits and Systems Lab1 -Transmission Lines  

E-Print Network [OSTI]

1 ECEN 720 High-Speed Links: Circuits and Systems Lab1 - Transmission Lines Objective To learn about transmission lines and time-domain reflectometer (TDR). Introduction Wires are used to transmit. In high speed data communication chip design, the wires are often treated as transmission lines. Proper

Palermo, Sam

89

Longitudinal Partitioning Based Waveform Relaxation Algorithm for Transient Analysis of Long Delay Transmission Lines  

E-Print Network [OSTI]

Transmission Lines Sourajeet Roy and Anestis Dounavis Department of Electrical and Computer Engineering networks. The proposed methodology represents lossy transmission lines as a cascade of lumped circuit of characteristics. This allows the transmission line to be naturally partitioned into smaller, weakly coupled

Roy, Sourajeet

90

Multilayer Coplanar Waveguide Transmission Lines Compatible with Standard Digital Silicon Technologies  

E-Print Network [OSTI]

Multilayer Coplanar Waveguide Transmission Lines Compatible with Standard Digital Silicon, Email: hwu@ece.rochester.edu Abstract-- On-chip transmission lines in silicon technologies suffer from. In this paper, we demonstrate that multilayer coplanar waveguide (MCPW) transmission lines can be utilized

Wu, Hui

91

Multistability in nonlinear left-handed transmission lines David A. Powell,a  

E-Print Network [OSTI]

Multistability in nonlinear left-handed transmission lines David A. Powell,a Ilya V. Shadrivov; published online 2 July 2008 Employing a nonlinear left-handed transmission line as a model system, we, which at higher power may result in chaotic dynamics of the transmission line. © 2008 American Institute

92

Field quality measurements of a 2-Tesla transmission line magnet  

SciTech Connect (OSTI)

A prototype 2-Tesla superconducting transmission line magnet for future hadron colliders was designed, built and tested at Fermilab. The 1.5 m long, combined-function gradient-dipole magnet has a vertical pole aperture of 20 mm. To measure the magnetic field quality in such a small magnet aperture, a specialized rotating coil of 15.2 mm diameter, 0.69 m long was fabricated. Using this probe, a program of magnetic field quality measurements was successfully performed. Results of the measurements are presented and discussed.

Velev, G.V.; Foster, W.; Kashikhin, V.; Mazur, P.; Oleck, A.; Piekarz, H.; Schlabach, P.; Sylvester, C.; /Fermilab; Wake, M.; /KEK, Tsukuba

2005-09-01T23:59:59.000Z

93

Wild Horse 69-kV transmission line environmental assessment  

SciTech Connect (OSTI)

Hill County Electric Cooperative Inc. (Hill County) proposes to construct and operate a 69-kV transmission line from its North Gildford Substation in Montana north to the Canadian border. A vicinity project area map is enclosed as a figure. TransCanada Power Corporation (TCP), a Canadian power-marketing company, will own and construct the connecting 69-kV line from the international border to Express Pipeline`s pump station at Wild Horse, Alberta. This Environmental Assessment is prepared for the Department of Energy (DOE) as lead federal agency to comply with the requirements of the National Environmental Policy Act (NEPA), as part of DOE`s review and approval process of the applications filed by Hill County for a DOE Presidential Permit and License to Export Electricity to a foreign country. The purpose of the proposed line is to supply electric energy to a crude oil pump station in Canada, owned by Express Pipeline Ltd. (Express). The pipeline would transport Canadian-produced oil from Hardisty, Alberta, Canada, to Caster, Wyoming. The Express Pipeline is scheduled to be constructed in 1996--97 and will supply crude oil to refineries in Wyoming and the midwest.

NONE

1996-12-01T23:59:59.000Z

94

Josephson junction-embedded transmission-line resonators: from Kerr medium to in-line transmon  

E-Print Network [OSTI]

We provide a general method to find the Hamiltonian of a linear circuit in the presence of a nonlinearity. Focussing on the case of a Josephson junction embedded in a transmission-line resonator, we solve for the normal modes of the system by taking into account exactly the effect of the quadratic (i.e. inductive) part of the Josephson potential. The nonlinearity is then found to lead to self and cross-Kerr effect, as well as beam-splitter type interactions between modes. By adjusting the parameters of the circuit, the Kerr coefficient K can be made to reach values that are weak (K \\kappa) or even very strong (K >> \\kappa) with respect to the photon-loss rate \\kappa. In the latter case, the resonator+junction circuit corresponds to an in-line version of the transmon. By replacing the single junction by a SQUID, the Kerr coefficient can be tuned in-situ, allowing for example the fast generation of Schr\\"odinger cat states of microwave light. Finally, we explore the maximal strength of qubit-resonator coupling...

Bourassa, J; Gambetta, Jay M; Blais, A

2012-01-01T23:59:59.000Z

95

Sensor, method and system of monitoring transmission lines  

DOE Patents [OSTI]

An apparatus, method, and system for measuring the magnetic field produced by phase conductors in multi-phase power lines. The magnetic field measurements are used to determine the current load on the conductors. The magnetic fields are sensed by coils placed sufficiently proximate the lines to measure the voltage induced in the coils by the field without touching the lines. The x and y components of the magnetic fields are used to calculate the conductor sag, and then the sag data, along with the field strength data, can be used to calculate the current load on the line and the phase of the current. The sag calculations of this invention are independent of line voltage and line current measurements. The system applies a computerized fitter routine to measured and sampled voltages on the coils to accurately determine the values of parameters associated with the overhead phase conductors.

Syracuse, Steven J.; Clark, Roy; Halverson, Peter G.; Tesche, Frederick M.; Barlow, Charles V.

2012-10-02T23:59:59.000Z

96

Miter bend loss and higher order mode content measurements in overmoded millimeter-wave transmission lines  

E-Print Network [OSTI]

High power applications require an accurate calculation of the losses on overmoded corrugated cylindrical transmission lines. Previous assessments of power loss on these lines have not considered beam polarization or higher ...

Kowalski, Elizabeth J. (Elizabeth Joan)

2010-01-01T23:59:59.000Z

97

EIS-0256: Sierra Pacific Power Company Alturas Transmission Line Project (adopted from BLM)  

Broader source: Energy.gov [DOE]

This EIS evaluates the environmental setting and consequences of the construction and operation of the proposal Alturas Transmission Line Project. Sierra Pacific Power Company (SPPCO) has proposed this electric power transmission line to improve the existing operational capacity and reliability of its power transmission system and provide for anticipated growth in demand for electric power.

98

Meteorological conditions associated with the full-span galloping oscillations of overhead transmission lines  

E-Print Network [OSTI]

transmission lines J. C.R. Hunt, M.A., Ph.D., A.F.I.M.A., and M.D. Rowbottom,B.Sc., PhJD., A.F.I.M.A. Indexing transmission lines over a 7-year period have been correlated in the form of histograms of number of faults-span galloping oscillations of ice-accreted bundled overhead transmission lines. The main assumption made

Hunt, Julian

99

Non-transposed, three phase transmission lines: a study of their effect on load voltages.  

E-Print Network [OSTI]

TRANSMISSION LINES A S'PJDY OF THEIR EFFECT ON LOAD VOLTAGES A Thesis By Robert Dean Chenoweth August 1951 NON-TRANSPOSED~ THREE PHASE TRANSMISSION LINES A STUDY OF THEIR EFFECT ON LOAD VOLTAGES A Thesis Submitted to the Faculty of the Agricultural... all large blocks of alternating current power are transmitted from the generating station to the load by means of three phase transmission lines. With present day equipment this method is economical and when ~ properly designed gives very...

Chenoweth, Robert Dean

1951-01-01T23:59:59.000Z

100

744 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 40, NO. 3, MARCH 2005 Nonlinear Transmission Lines  

E-Print Network [OSTI]

744 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 40, NO. 3, MARCH 2005 Nonlinear Transmission Lines--Nonlinear transmission lines (NLTL) are used for pulse shaping. We developed the theory of pulse propagation through sharpening, nonlinear effects, nonlinear transmission lines, pulse shaping, soli- tons, transmission lines. I

Afshari, Ehsan

Note: This page contains sample records for the topic "lines transmission line" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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101

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...

102

EIS-0344: Grand Coulee-Bell 500 kV Transmission Line  

Broader source: Energy.gov [DOE]

This EIS analyzes DOE's proposed action for the construction and operation of the proposed Grand Coulee-Bell 500-kV Transmission Line Project.

103

Precision electron flow measurements in a disk transmission line.  

SciTech Connect (OSTI)

An analytic model for electron flow in a system driving a fixed inductive load is described and evaluated with particle in cell simulations. The simple model allows determining the impedance profile for a magnetically insulated transmission line given the minimum gap desired, and the lumped inductance inside the transition to the minimum gap. The model allows specifying the relative electron flow along the power flow direction, including cases where the fractional electron flow decreases in the power flow direction. The electrons are able to return to the cathode because they gain energy from the temporally rising magnetic field. The simulations were done with small cell size to reduce numerical heating. An experiment to compare electron flow to the simulations was done. The measured electron flow is {approx}33% of the value from the simulations. The discrepancy is assumed to be due to a reversed electric field at the cathode because of the inductive load and falling electron drift velocity in the power flow direction. The simulations constrain the cathode electric field to zero, which gives the highest possible electron flow.

Clark, Waylon T.; Pelock, Michael D.; Martin, Jeremy Paul; Jackson, Daniel Peter Jr.; Savage, Mark Edward; Stoltzfus, Brian Scott; Mendel, Clifford Will, Jr.; Pointon, Timothy David

2008-01-01T23:59:59.000Z

104

INSTRUMENTATION FOR SURVEYING ACOUSTIC SIGNALS IN NATURAL GAS TRANSMISSION LINES  

SciTech Connect (OSTI)

In the U.S. natural gas is distributed through more than one million miles of high-pressure transmission pipelines. If all leaks and infringements could be detected quickly, it would enhance safety and U.S. energy security. Only low frequency acoustic waves appear to be detectable over distances up to 60 km where pipeline shut-off valves provide access to the inside of the pipeline. This paper describes a Portable Acoustic Monitoring Package (PAMP) developed to record and identify acoustic signals characteristic of: leaks, pump noise, valve and flow metering noise, third party infringement, manual pipeline water and gas blow-off, etc. This PAMP consists of a stainless steel 1/2 inch NPT plumbing tree rated for use on 1000 psi pipelines. Its instrumentation is designed to measure acoustic waves over the entire frequency range from zero to 16,000 Hz by means of four instruments: (1) microphone, (2) 3-inch water full range differential pressure transducer with 0.1% of range sensitivity, (3) a novel 3 inch to 100 inch water range amplifier, using an accumulator with needle valve and (4) a line-pressure transducer. The weight of the PAMP complete with all accessories is 36 pounds. This includes a remote control battery/switch box assembly on a 25-foot extension chord, a laptop data acquisition computer on a field table and a sun shield.

John L. Loth; Gary J. Morris; George M. Palmer; Richard Guiler; Deepak Mehra

2003-09-01T23:59:59.000Z

105

Radial transmission line analysis of multi-layer structures  

SciTech Connect (OSTI)

The analysis of multi-layer beam tubes is a standard problem and involves axially propagating waves. This treatment is ill suited to a short multi-layer structure such as the present example of a ferrite covered ceramic break in the beam tube at the ERL photo-cathode electron gun. This paper demonstrates that such structure can better be treated by radial wave propagation. The theoretical method is presented and numerical results are compared with measured network analyser data and Microwave Studio generated simulations. The results confirm the concept of radial transmission lines as a valid analytical method. An Energy Recovery Linac (ERL) is being constructed at this laboratory for the purpose of research towards an envisioned Electron Ion Collider. One of the pertinent topics is damping of Higher Order Modes (HOM). In this ERL, the damping is provided by ferrite absorbers in the beam tube. A modified version thereof, a ceramic break surrounded by ferrite, is planed for the superconducting electron gun. The damper here is located at room temperature just outside of the gun. If used in a cavity chain, the ceramic break is in the vacuum tube at helium temperature whereas the ferrite is moved into the cryostat insulating vacuum allowing higher temperatures. The general properties of the ferrite HOM dampers have been published but are more detailed in this paper.

Hahn, H.; Hammons, L.

2011-03-28T23:59:59.000Z

106

EA-1896: Williston to Stateline Transmission Line Project, Mountrail Williams Electric Cooperative, Williston, North Dakota  

Broader source: Energy.gov [DOE]

DOE’s Western Area Power Administration is preparing this EA to evaluate the environmental impacts of interconnecting the proposed Stateline I transmission line, in Williston, North Dakota, to Western’s transmission system.

107

Electric Companies and Electric Transmission Lines (North Dakota)  

Broader source: Energy.gov [DOE]

The Public Service Commission has the authority to regulate the construction, operation, and maintenance of electrical supply lines, and to issue additional rules for this purpose. Section 49-21.1...

108

Omega Transmission Lines with Applications to Effective Medium Models of Metamaterials  

E-Print Network [OSTI]

In this paper we introduce the concept of transmission lines with inherent bi-anisotropy and establish an analogy between these lines and volumetric bi-anisotropic materials. In particular, we find under what conditions a periodically loaded transmission line can be treated as an effective omega medium. Two example circuits are introduced and analyzed. The results have two-fold implications: opening a route to emulate electromagnetic properties of bi-anisotropic omega media using transmission-line meshes and understanding and improving effective medium models of composite materials with the use of effective circuit models of unit cells.

Vehmas, Joni; Tretyakov, Sergei

2014-01-01T23:59:59.000Z

109

Electric Utility Transmission and Distribution Line Engineering Program  

SciTech Connect (OSTI)

Economic development in the United States depends on a reliable and affordable power supply. The nation will need well educated engineers to design a modern, safe, secure, and reliable power grid for our future needs. An anticipated shortage of qualified engineers has caused considerable concern in many professional circles, and various steps are being taken nationwide to alleviate the potential shortage and ensure the North American power system's reliability, and our world-wide economic competitiveness. To help provide a well-educated and trained workforce which can sustain and modernize the nation's power grid, Gonzaga University's School of Engineering and Applied Science has established a five-course (15-credit hour) Certificate Program in Transmission and Distribution (T&D) Engineering. The program has been specifically designed to provide working utility engineering professionals with on-line access to advanced engineering courses which cover modern design practice with an industry-focused theoretical foundation. A total of twelve courses have been developed to-date and students may select any five in their area of interest for the T&D Certificate. As each course is developed and taught by a team of experienced engineers (from public and private utilities, consultants, and industry suppliers), students are provided a unique opportunity to interact directly with different industry experts over the eight weeks of each course. Course material incorporates advanced aspects of civil, electrical, and mechanical engineering disciplines that apply to power system design and are appropriate for graduate engineers. As such, target students for the certificate program include: (1) recent graduates with a Bachelor of Science Degree in an engineering field (civil, mechanical, electrical, etc.); (2) senior engineers moving from other fields to the utility industry (i.e. paper industry to utility engineering or project management positions); and (3) regular working professionals wishing to update their skills or increase their knowledge of utility engineering design practices and procedures. By providing graduate educational opportunities for the above groups, the T&D Program will help serve a strong industry need for training the next generation of engineers in the cost-effective design, construction, operation, and maintenance of modern electrical transmission and distribution systems. In addition to developing the on-line engineering courses described above, the T&D Program also focused significant efforts towards enhancing the training opportunities available to power system operators in the northwest. These efforts have included working with outside vendors to provide NERC-approved training courses in Gonzaga University's (GU) system operator training facility, support for an accurate system model which can be used in regional blackstart exercises, and the identification of a retired system operator who could provide actual regional training courses. The GU system operator training facility is also being used to recruit young workers, veterans, and various under-represented groups to the utility industry. Over the past three years students from Columbia Gorge Community College, Spokane Falls Community College, Walla Walla Community College, Central Washington University, Eastern Washington University, Gonzaga University, and various local high schools have attended short (one-day) system operator training courses free of charge. These collaboration efforts has been extremely well received by both students and industry, and meet T&D Program objectives of strengthening the power industry workforce while bridging the knowledge base across power worker categories, and recruiting new workers to replace a predominantly retirement age workforce. In the past three years the T&D Program has provided over 170 utility engineers with access to advanced engineering courses, been involved in training more than 300 power system operators, and provided well over 500 college and high school students with an experienc

Peter McKenny

2010-08-31T23:59:59.000Z

110

EIS-0317-S1: Kangley-Echo Lake Transmission Line Project Final Environmental Impact Statement  

Broader source: Energy.gov [DOE]

Bonneville Power Administration (BPA) has completed a supplemental draft Environmental Impact Statement (SDEIS) for the proposed Kangley-Echo Lake Transmission Line Project. The proposed line in central King County, Washington is needed to accommodate electrical growth and reliability concerns in the Puget Sound area. The SDEIS analyzes four additional transmission alternatives not analyzed in detail in the draft Environmental Impact Statement (DEIS) issued in June 2001, and a number of non-transmission alternatives.

111

EIS-0325: Schultz-Hanford Area Transmission Line Project Final Environmental Impact Statement, EIS-0325 (January 2003)  

Broader source: Energy.gov [DOE]

BPA proposes to construct a new 500-kilovolt (kV) transmission line in central Washington. This project would increase transmission system capacity north of Hanford.

112

EIS-0332: McNary-John Day Transmission Line Project, OR  

Broader source: Energy.gov [DOE]

This EIS analyzes BPA's decision to construct, operate, and maintain a 79-mile-long 500-kilovolt transmission line in Benton and Klickitat Counties, Washington, and Umatilla and Sherman counties, Oregon.

113

Regulations for Gas Transmission Lines Less than Ten Miles Long (New York)  

Broader source: Energy.gov [DOE]

Any person who wishes to construct a gas transmission line that is less than ten miles long must file documents describing the construction plans and potential land use and environmental impacts of...

114

Calculation and measurement of higher order mode losses in ITER ECH transmission lines  

E-Print Network [OSTI]

The ITER transmission lines (TLs) must be designed to deliver 20 MW from a 24 MW, 170 GHz gyrotron system. Miter bends are the main source of loss for these highly overmoded, corrugated, cylindrical waveguide TLs. Previous ...

Temkin, Richard J.

115

EIS-0399: Montana Alberta Tie Ltd. (MATL) 230-KV Transmission Line  

Broader source: Energy.gov [DOE]

DOE, jointly with the Montana Department of Environmental Quality (MDEQ), prepared an EIS that evaluated the potential environmental impacts of a proposed international transmission line that would cross the U.S.-Canada border in northwest Montana.

116

EIS-0078: Jonesboro-Hergett 161-kV Transmission Line  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy's Southwestern Power Administration developed this statement to assess the environmental and socioeconomic impacts of a 161-kilovolt transmission line in Craighead County, Arkansas, including its proposed and alternate routes.

117

EA-1952: Lane-Wendson No. 1 Transmission Line Rebuild Project; Lane County, Oregon  

Broader source: Energy.gov [DOE]

Bonneville Power Administration is preparing an EA to assess the potential environmental impacts of the proposed rebuild of the 41.3-mile Lane-Wendson No. 1 transmission line between Eugene and Florence, Oregon.

118

Using Dielectric Losses to De-Ice Power Transmission Lines with 100 kHz High-Voltage  

E-Print Network [OSTI]

Using Dielectric Losses to De-Ice Power Transmission Lines with 100 kHz High-Voltage Excitation J DIELECTRIC LOSSES TO DE-ICE POWER TRANSMISSION LINES . . . 1 Using Dielectric Losses to De-Ice Power Transmission Lines with 100 kHz High-Voltage Excitation Joshua D. McCurdy, Charles R. Sullivan and Victor F

119

The mesa merging oxidation method for creating low-loss dielectrics and transmission lines on low-resistivity silicon  

E-Print Network [OSTI]

The mesa merging oxidation method for creating low-loss dielectrics and transmission lines on low.1088/0960-1317/21/6/065020 The mesa merging oxidation method for creating low-loss dielectrics and transmission lines on low steps to create high aspect ratio coplanar waveguide (hicoplanar) transmission lines. The large SiO2

Bowers, John

120

Simulation of Eye-Diagrams on Lossy Transmission Lines using Extracted Data from 1-port TDR Measurements  

E-Print Network [OSTI]

Simulation of Eye-Diagrams on Lossy Transmission Lines using Extracted Data from 1-port TDR of transmission lines were measured from 1- port TDR measurements. Using the extracted data, eye- diagrams of lossy transmission lines were simulated based on a non-physical RLGC model. Conventional W element

Swaminathan, Madhavan

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


121

650 IEEE TRANSACTIONS ON POWER DELIVERY, VOL. 26, NO. 2, APRIL 2011 Hourly Scheduling of DC Transmission Lines in  

E-Print Network [OSTI]

Transmission Lines in SCUC With Voltage Source Converters Azim Lotfjou, Mohammad Shahidehpour, Fellow, IEEE transmission lines, se- curity-constrained unit commitment, voltage-source converters. NOMENCLATURE Index of ac;LOTFJOU et al.: HOURLY SCHEDULING OF DC TRANSMISSION LINES 651 , Vector of real and reactive power

Fu, Yong

122

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 45, NO. 6, JUNE 1997 939 Characteristics of Coplanar Transmission Lines on  

E-Print Network [OSTI]

of Coplanar Transmission Lines on Multilayer Substrates: Modeling and Experiments Erli Chen and Stephen Y. Chou, Senior Member, IEEE Abstract-- Characteristics of coplanar transmission lines on multilayer of these for- mulas has been verified experimentally on a variety of copla- nar transmission lines using

123

736 IEEE TRANSACTIONS ON ADVANCED PACKAGING, VOL. 28, NO. 4, NOVEMBER 2005 Simulation of Lossy Package Transmission Lines  

E-Print Network [OSTI]

Package Transmission Lines Using Extracted Data From One-Port TDR Measurements and Nonphysical RLGC Models, the frequency-dependent characteristic impedance and propagation constant of lossy transmission lines have been ( ), conductance ( ) and capacitance ( ) (RLGC) models have been developed for simulating lossy transmission lines

Swaminathan, Madhavan

124

Minimizing Simultaneous Switching Noise at Reduced Power with Constant-Voltage Power Transmission Lines for High-Speed Signaling  

E-Print Network [OSTI]

plane structure with a power transmission line (PTL). In this paper, a new power delivery scheme called Constant Voltage Power Transmission Line (CV-PTL) is shown to significantly reduce switching noise while, and measurements. Keywords Power delivery network, simultaneous switching noise, power transmission line 1

Swaminathan, Madhavan

125

On the Design and Implementation of Transmission Lines in Commercial SiGe HBT BiCMOS Processes  

E-Print Network [OSTI]

On the Design and Implementation of Transmission Lines in Commercial SiGe HBT BiCMOS Processes Matt the feasibility of implement- ing transmission lines in a commercially-available SiGe HBT BiCMOS technology. Thin film microstrip transmission lines using the top and bottom metalization layers (with a 3.24 ¡ m

Papapolymerou, Ioannis "John"

126

EIS-0118: Proposed Eugene-Medford 500-kV Transmission Line  

Broader source: Energy.gov [DOE]

The U.S. Department of Interior developed this statement to assess the environmental impact of a proposed 500-kilovolt transmission line linking Eugene and Medford, Oregon, that would cross through public lands. The Bonneville Power Administration (BPA) would provide service to the proposed line and is a cooperating agency in the statement. BPA adopted the EIS on 7/10/1985.

127

Renewable portfolio standards, Greenhouse gas reduction, and Long-Line transmission investments in the WECC  

SciTech Connect (OSTI)

New, long-distance transmission lines to remote areas with concentrations of high-quality renewable resources can help western states meet the challenges of increasing renewable energy procurement and reducing greenhouse gas emissions more cost-effectively than reliance on local resources alone. The approach applied here to the Western Electricity Coordinating Council is useful for an initial determination of the net benefits of long-line transmission between regions with heterogeneous resource quality. (author)

Olson, Arne; Orans, Ren; Allen, Doug; Moore, Jack; Woo, C.K.

2009-11-15T23:59:59.000Z

128

Study of Compact Tunable Filters Using Negative Refractive Index Transmission Lines  

E-Print Network [OSTI]

1 STUDY OF COMPACT TUNABLE FILTERS USING NEGATIVE REFRACTIVE INDEX TRANSMISSION LINES A Thesis by BRIAN PATRICK LEWIS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... Brian Patrick Lewis 3 STUDY OF COMPACT TUNABLE FILTERS USING NEGATIVE REFRACTIVE INDEX TRANSMISSION LINES A Thesis by BRIAN PATRICK LEWIS Submitted to the Office of Graduate Studies of Texas A&M University in partial...

Lewis, Brian Patrick

2011-08-08T23:59:59.000Z

129

Forced cooling of underground electric power transmission lines : design manual  

E-Print Network [OSTI]

The methodology utilized for the design of a forced-cooled pipe-type underground transmission system is presented. The material is divided into three major parts: (1) The Forced-cooled Pipe-Type Underground Transmission ...

Brown, Jay A.

1978-01-01T23:59:59.000Z

130

Calculation of large ion densities under HVdc transmission lines by the finite difference method  

SciTech Connect (OSTI)

A calculation method for large ion densities (charged aerosols) under HVdc transmission lines was developed considering both the charging mechanism of aerosols by small ions and the drifting process by wind. Large ion densities calculated by this method agreed well with the ones measured under the Shiobara HVdc test line on the lateral profiles at ground level up to about 70m downwind from the line. Measured values decreased more quickly than calculated ones farther downwind from the line. Considering the effect of point discharge from ground cover (earth corona) improved the agreement in the farther downwind region.

Suda, Tomotaka; Sunaga, Yoshitaka [Central Research Institute of Electrical Power Industry, Komae, Tokyo (Japan)] [Central Research Institute of Electrical Power Industry, Komae, Tokyo (Japan)

1995-10-01T23:59:59.000Z

131

Investigation of conductor swinging by wind and its application for design of compact transmission line  

SciTech Connect (OSTI)

In Japan it has recently become necessary to shorten the interphase spacing in overhead transmission lines because of land limitations and economical considerations. In this connection, the authors have attempted to analyze, in-depth, the possibilities of shortened interphase spacing via conductor swinging caused by wind effects: one of the important factors in the design of more compact overhead lines. This paper describes not only the investigative results of conductor swinging that were obtained both through computer simulation and in 3 years of full scale field line testing, but also design methodology for compact overhead lines based on these results.

Tsujimoto, K.; Fujii, K.; Kubokawa, H.; Okomura, T.; Simojima, K.; Yoshioka, V.

1982-11-01T23:59:59.000Z

132

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

SciTech Connect (OSTI)

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.

NONE

1996-05-01T23:59:59.000Z

133

EIS-0447: Champlain Hudson Power Express Transmission Line Project, New York  

Broader source: Energy.gov [DOE]

This EIS evaluated the potential environmental impacts of a DOE proposal to grant a Presidential permit to Champlain Hudson Power Express, Inc., to construct, operate, maintain, and connect a new 1000-megawatt (MW) electric transmission system across the U.S.-Canada border in northeastern New York State. The proposed transmission line would run from the Canadian Province of Quebec to New York City.

134

EA-1665: Davis-Kingman 69-kV Transmission Line Rebuild Project, Arizona  

Broader source: Energy.gov [DOE]

Western plans to rebuild a 26.6-mile-long portion of the existing 27.3-mile-long Davis–Kingman Tap 69-kV Transmission Line within the existing ROW in order to improve the reliability of the transmission service.

135

EIS-0134: Charlie Creek-Belfield Transmission Line Project, North Dakota  

Broader source: Energy.gov [DOE]

The Western Area Power Administration developed this EIS to assess the environmental impact of constructing a high voltage transmission line between Charlie Creek and Belfield, North Dakota, and a new substation near Belfield to as a means of adding transmission capacity to the area.

136

EIS-0166: Bangor Hydro-Electric Transmission Line, Maine  

Broader source: Energy.gov [DOE]

The Department of Energy prepared this environmental impact statement while considering whether to authorize a Presidential permit for Bangor Hydro to construct a new electric transmission facility at the U.S. border with Canada.

137

Identification of ions near HVDC (high-voltage direct-current) transmission lines: Final report  

SciTech Connect (OSTI)

Positive and negative ion species were identified and studied at two separate field sites and one laboratory site. The first field study was conducted under an operating HVDC transmission line. The second was near a HVDC test line and measurements were performed with the line in both an energized and de-energized state. During clear, sunny days HSO/sub 4//sup /minus///center dot/H/sub 2/SO/sub 4/ was observed to be the dominant negative ion in the natural ion spectrum. At night, however, HSO/sub 4//sup /minus// core ions virtually disappeared, and were replaced by NO/sub 3//sup /minus// core ions and their first nitric acid cluster. Both negative spectra also typically contained lesser concentrations of the malonate ion. The transmission line negative spectra were similar but were typically dominated by the NO/sub 3//sup /minus// core ions during both day and night. The positive ions observed under HVDC lines were typically either NH/sub 4//sup +/ or C/sub 5/H/sub 6/N/sup +/, which reacted with higher proton affinity species (such as methylpyridines, trimethylamine and quinoline) farther from or in the absence of the transmission line. The observed differences between natural and anthropogenic ion spectra near HVDC lines are attributed primarily to a shortening of ion lifetimes by the strong electric field associated with the HVDC lines. One exception is the production of potassium and probably sodium based ions from the decomposition of insects in transmission line coronas. 22 refs., 29 figs.

Eisele, F.L.

1989-05-01T23:59:59.000Z

138

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

SciTech Connect (OSTI)

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.

Pandya, Hitesh Kumar B. [ITER-India, IPR, Gandhinagar, Gujarat (India)] [ITER-India, IPR, Gandhinagar, Gujarat (India); Austin, M. E. [Institute for Fusion Studies, the University of Texas at Austin, Austin, Texas (United States)] [Institute for Fusion Studies, the University of Texas at Austin, Austin, Texas (United States); Ellis, R. F. [Laboratory for Plasma and Fusion Energy Studies, University of Maryland, College Park, Maryland 20742 (United States)] [Laboratory for Plasma and Fusion Energy Studies, University of Maryland, College Park, Maryland 20742 (United States)

2013-10-15T23:59:59.000Z

139

Power Transmission Lines: A New Interconnect Design to Eliminate Simultaneous Switching Noise A. Ege Engin and Madhavan Swaminathan  

E-Print Network [OSTI]

Power Transmission Lines: A New Interconnect Design to Eliminate Simultaneous Switching Noise A of the coupling between the signal lines and the power delivery network (PDN) in off-chip signaling. This coupling presents a new PDN design, called as the power transmission line, which overcomes these problems

Swaminathan, Madhavan

140

Schultz-Hanford Area Transmission Line Project Draft Environmental Impact Statement  

SciTech Connect (OSTI)

This summary covers the major points of the Draft Environmental Impact Statement (EIS) prepared for the BPA Schultz-Hanford Transmission Project proposed by the Bonneville Power Administration (BPA). The project involves constructing a new 500-kilovolt (kV) line in central Washington, north of Hanford. The new line would connect to an existing line at the Schultz Substation near Ellensburg and to a new or existing substation in the Hanford area (see Map 2 in EIS). The project may also involve constructing a new substation to accommodate the new transmission line. As a federal agency, BPA is required by the National Environmental Policy Act (NEPA) to take into account potential environmental consequences of its proposal and take action to protect, restore, and enhance the environment during and after construction. Preparation of this EIS assists in meeting those requirements.

N /A

2002-02-08T23:59:59.000Z

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


141

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

Broader source: Energy.gov [DOE]

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.

142

Automated transmission line fault analysis using synchronized sampling at two ends  

SciTech Connect (OSTI)

This paper introduces a new approach to fault analysis using synchronized sampling. A digital fault recorder with Global Positioning System (GPS) satellite receiver is the source of data for this approach. Fault analysis functions, such as fault detection, classification and location are implemented for a transmission line using synchronized samples from two ends of a line. This technique can be extremely fast, selective and accurate, providing fault analysis performance that can not easily be matched by other known techniques.

Kezunovic, M. [Texas A and M Univ., College Station, TX (United States)] [Texas A and M Univ., College Station, TX (United States); Perunicic, B. [Lamar Univ., Beaumont, TX (United States)] [Lamar Univ., Beaumont, TX (United States)

1996-02-01T23:59:59.000Z

143

Automated transmission line fault analysis using synchronized sampling at two ends  

SciTech Connect (OSTI)

This paper introduces a new approach to fault analysis using synchronized sampling. A digital fault recorder with Global Positioning System (GPS) satellite receiver is the source of data for this approach. Fault analysis functions, such as fault detection, classification and location are implemented for a transmission line using synchronized samples from two ends of a line. This technique can be extremely fast, selective and accurate, providing fault analysis performance that can not easily be matched by other known techniques.

Kezunovic, M. [Texas A and M Univ., College Station, TX (United States); Perunicic, B. [Lamar Univ., Beaumont, TX (United States)

1995-12-31T23:59:59.000Z

144

Availability of corona cage for predicting audible noise generated from HVDC transmission line  

SciTech Connect (OSTI)

This paper describes a prospect that a corona cage is available for predicting audible noise (AN) generated from HVDC transmission line. This is based on the assumption that generation quantities of AN and corona current are determined by Fmax (the true maximum conductor surface gradient in the presence of space charge) regardless of the surrounding electrode arrangement. This assumption has been verified by tests using corona cages and a test line.

Nakano, Y.; Sunaga, Y.

1989-04-01T23:59:59.000Z

145

Availabilty of corona cage for predicting radio interference generated from HVDC transmission line  

SciTech Connect (OSTI)

This paper describes a prospect that a corona cage is available for predicting radio interference (RI) generated from HVDC transmission lines. This is based on the assumption that the generation quantity of RI is determined by Fmax (the true maximum conductor surface gradient in the presence of space charge), regardless of surrounding electrode arrangement. This assumption has been verified by tests using corona cages and a test line.

Nakano, Y.; Sunaga, Y. (Central Research Inst. of Electric Power Industry, Tokyo (Japan))

1990-07-01T23:59:59.000Z

146

A test of a 2 Tesla superconducting transmission line magnet system  

SciTech Connect (OSTI)

Superconducting transmission line magnet test system for an injector accelerator of a staged VLHC proton-proton colliding beam accelerator has been built and operated at Fermilab. The 1.5 m long, twin-aperture, combined function dipole magnet of 2 Tesla field is excited by a single turn 100 kA transmission line superconductor. The 100 kA dc current is generated using dc-dc switching converters powered by a bulk 240 kW supply. A pair of horizontally placed conventional leads facilitates transfer of this current to the magnet transmission line superconductor operating at liquid helium temperature. Fabrication of magnet components and magnet assembly work are described. The magnet test system and its operation are presented, and the performance is summarized.

Piekarz, Henryk; Carcagno, Ruben; Claypool, Brad; Foster, George W.; Hays, Steven L.; Huang, Yuenian; Kashikhin, Vladimir; Malamud, Ernest; Mazur, Peter O.; Nehring,; Oleck, Andrew; Rabehl, Roger; Schlabach, Phil; Sylvester, Cosmore; Velev, Gueorgui; Volk, James; /Fermilab; Wake, Masayoshi; /KEK, Tsukuba

2005-09-01T23:59:59.000Z

147

Non-Linear Transmission Line (NLTL) Microwave Source Lecture Notes the United States Particle Accelerator School  

SciTech Connect (OSTI)

We will quickly go through the history of the non-linear transmission lines (NLTLs). We will describe how they work, how they are modeled and how they are designed. Note that the field of high power, NLTL microwave sources is still under development, so this is just a snap shot of their current state. Topics discussed are: (1) Introduction to solitons and the KdV equation; (2) The lumped element non-linear transmission line; (3) Solution of the KdV equation; (4) Non-linear transmission lines at microwave frequencies; (5) Numerical methods for NLTL analysis; (6) Unipolar versus bipolar input; (7) High power NLTL pioneers; (8) Resistive versus reactive load; (9) Non-lineaer dielectrics; and (10) Effect of losses.

Russell, Steven J. [Los Alamos National Laboratory; Carlsten, Bruce E. [Los Alamos National Laboratory

2012-06-26T23:59:59.000Z

148

Transmission Line Jobs and Economic Development Impact (JEDI) Model User Reference Guide  

SciTech Connect (OSTI)

The Jobs and Economic Development Impact (JEDI) models, developed through the National Renewable Energy Laboratory (NREL), are freely available, user-friendly tools that estimate the potential economic impacts of constructing and operating power generation projects for a range of conventional and renewable energy technologies. The Transmission Line JEDI model can be used to field questions about the economic impacts of transmission lines in a given state, region, or local community. This Transmission Line JEDI User Reference Guide was developed to provide basic instruction on operating the model and understanding the results. This guide also provides information on the model's underlying methodology, as well as the parameters and references used to develop the cost data contained in the model.

Goldberg, M.; Keyser, D.

2013-10-01T23:59:59.000Z

149

Sidney-North Yuma 230-kV Transmission Line Project, Colorado and Nebraska  

SciTech Connect (OSTI)

This report describes the need for a 230-kV overhead transmission line to supply power from Sidney, Nebraska to eastern Colorado. The alternative scenario compared to construction of the line is No Action. Rejected alternatives include underground lines and different routing paths, with a possible extension to the Sterling area. Both scenarios are evaluated for environmental effects, cost, and consequences for the eastern Colorado region. The proposed route is determined to be the environmentally preferred choice. 120 refs., 6 figs., 13 tabs. (MHB)

Not Available

1991-06-01T23:59:59.000Z

150

Measuring Hawking Radiation of a Kerr-Newman Black Hole in a Superconducting Transmission Line  

E-Print Network [OSTI]

Applying a dimensional reduction technique and a coordinates transformation approach, we deduce the Kerr-Newman space-time into a Painlev\\'{e}-like form, and obtain its corresponding event horizon and the Hawking radiation temperature. We find that, the event horizon of a Kerr-Newman black hole can be simulated in a superconducting transmission line. Moreover, by running some numerical simulation, we confirm that the Hawking radiation of a Kerr-Newman Black Hole can be experimentally measured in a superconducting transmission line.

X. G. Lan; D. Y. Chen; L. F. Wei

2014-03-21T23:59:59.000Z

151

EA-1948: Gila-North Gila Transmission Line Rebuild and Upgrade Project, Yuma County, Arizona  

Broader source: Energy.gov [DOE]

DOE’s Western Area Power Administration (Western) prepared this EA to analyze the potential environmental impacts of a proposal to rebuild and upgrade two parallel 4.8-mile transmission lines between the Gila and North Gila Substations and take actions in support of portions of Arizona Public Service’s construction of a new, 12.8 mile 230-kV transmission line between North Gila and a proposed substation in Yuma County, Arizona. The U.S. Bureau of Reclamation and U.S. Army Corps of Engineers are cooperating agencies.

152

McNary-John Day Transmission Line Project, Final Environmental Impact Statement  

SciTech Connect (OSTI)

Bonneville is proposing to construct, operate, and maintain a 79-mile-long 500-kilovolt-transmission line in Benton and Klickitat Counties, Washington, and Umatilla and Sherman Counties, Oregon. The new line would start at Bonneville's McNary Substation in Oregon and would cross the Columbia River just north of the substation into Washington. The line would then proceed west for about 70 miles along the Columbia River. At the John Day Dam, the line would again cross the Columbia River into Oregon and terminate at Bonneville's John Day Substation. The new line would parallel existing transmission lines for the entire length; mostly within existing available right-of-way. Presently, the existing transmission lines in the area are operating at capacity. These lines help move power from the east side of the Cascades to the west side, where there is a high need for electricity (cities along the I-5 corridor). Because the Northwest has only recently recovered from a shortfall in electric energy supply and a volatile wholesale power market in which prices reached record highs, there are many new proposals for facilities to generate new power. Some of these facilities are in the vicinity of the McNary-John Day project; the proposed line would help insure that existing and newly generated power could move through the system. Bonneville is also considering the No Action Alternative and several short-line routing alternatives. The short routing alternatives include three half-mile-long routes for getting from the McNary Substation to the Columbia River crossing; three two-mile-long routes where the Hanford-John Day transmission line joins the existing corridor; two 1,000-foot-long routes at corridor mile 32; and two 500-foot-long routes at corridor mile 35. This abbreviated final EIS consists of an introduction to the document, changes to the draft EIS, copies of all the comments received on the draft EIS, and Bonneville's written responses to the comments. The final EIS should be used as a companion document to the draft EIS (dated February 2002), which contains the full text of the affected environment, environmental analysis, and appendices.

N /A

2002-08-30T23:59:59.000Z

153

Proceedings of the Inspection and Assessment of Overhead Transmission Line Equipment Workshop: 13-15 May 2003, Monterey, CA  

SciTech Connect (OSTI)

This report contains papers and materials presented at the Inspection and Assessment of Overhead Transmission Line Equipment Workshop held in Monterey, California in May of 2003.

None

2003-10-01T23:59:59.000Z

154

A MODIFIED TRANSMISSION LINE MODEL FOR LIGHTNING RETURN STROKE FIELD CALCULATIONS  

E-Print Network [OSTI]

- 229 - 44Hl A MODIFIED TRANSMISSION LINE MODEL FOR LIGHTNING RETURN STROKE FIELD CALCULATIONS V. The modifications considered differ from each other by the height dependent attenuation factor for the return stroke data available. Some problems with modeling of the early and late stages of the return stroke process

Florida, University of

155

EA-1946: Salem-Albany Transmission Line Rebuild Project; Polk, Benton, Marion, and Linn Counties, Oregon  

Broader source: Energy.gov [DOE]

Bonneville Power Administration is preparing an EA to assess the potential environmental impacts of the proposed rebuild of the 24-mile Salem-Albany No. 1 and 28-mile Salem-Albany No. 2 transmission lines between Salem and Albany, Oregon.

156

EIS-0502: Hot Springs to Anaconda Transmission Line Rebuild Project, Montana  

Broader source: Energy.gov [DOE]

DOE’s Bonneville Power Administration (BPA) is preparing an EIS that will analyze the potential environmental impacts of a proposal to rebuild approximately 120 miles of existing transmission line in Sanders, Lake, Missoula, Granite, Powell, and Deer Lodge Counties in Montana. Additional information is available at http://efw.bpa.gov/environmental_services/Document_Library/HotSpringsAna....

157

EA-1967: Hills Creek-Lookout Point Transmission Line Rebuild, Lane County, Oregon  

Broader source: Energy.gov [DOE]

Bonneville Power Administration is preparing an EA to assess potential environmental impacts of the proposed rebuild of its 26-mile 115 kilovolt (kV) wood-pole Hills Creek-Lookout Point transmission line, which is generally located between Lowell and Oakridge, in Lane County, Oregon.

158

EIS-0103: New England/Hydro-Quebec 450-kV Direct Current Transmission Line Interconnection  

Broader source: Energy.gov [DOE]

The Economic Regulatory Administration prepared this statement to evaluate the environmental impacts of the construction, maintenance and operation of a 57-mile transmission line from Monroe, New Hampshire, to the U.S./Canadian border for the purpose of economic exchange of power and increased reliability.

159

EA-1972: Electric District 2 to Saguaro No. 2 Transmission Line Rebuild, Pinal County, Arizona  

Broader source: Energy.gov [DOE]

Western Area Power Administration issued a Draft EA that assesses the potential environmental impacts of the proposed rebuild of a 35.6-mile transmission line that Western operates and maintains under an agreement with the Central Arizona Project. Additional information is available on the project website, http://www.wapa.gov/dsw/environment/ED2DOEEA1972.htm.

160

EA-1950: Grand Coulee-Creston Transmission Line Rebuild; Grant and Lincoln Counties, Washington  

Broader source: Energy.gov [DOE]

Bonneville Power Administration prepared this EA to evaluate potential environmental impacts of rebuilding approximately 28 miles of the Grand Coulee-Creston No. 1 115-kilovolt (kV) transmission line between Coulee Dam in Grant County and Creston in Lincoln County, Washington.

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


161

Amended Notice of Intent for the Northern Pass Transmission Line Project Published in the Federal Register  

Broader source: Energy.gov [DOE]

The Department of Energy announces its intent to modify the scope of the Northern Pass Transmission Line Project Environmental Impact Statement and to conduct additional public scoping meetings. The Federal Register Notice, which is now available for downloading, includes information on how to submit comments and participate in the additional public scoping meetings.

162

EA-1961: Kalispell-Kerr Transmission Line Rebuild Project, Kalispell and Polson, Montana  

Broader source: Energy.gov [DOE]

Bonneville Power Administration is preparing an EA to evaluate potential environmental impacts of rebuilding its 41-mile long 115 kilovolt (kV) wood-pole Kalispell-Kerr transmission line between Kalispell and Polson, Montana. Additional information is available on the project website, http://efw.bpa.gov/environmental_services/Document_Library/KALISPELL_KERR/.

163

Entanglement of nitrogen-vacancy-center ensembles using transmission line resonators and a superconducting phase qubit  

SciTech Connect (OSTI)

We propose a potentially practical scheme for creating entanglement between two distant nitrogen-vacancy-center (N-V) spin ensembles using a current-biased Josephson junction superconducting qubit and transmission line resonators. The idea provides a scalable way to an N-V ensemble-based quantum network, which is close to the reach with currently available technology.

Yang, W. L.; Feng, M. [State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, and Wuhan National Laboratory for Optoelectronics, Wuhan 430071 (China); Hu, Y. [Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 (China); Yin, Z. Q. [Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026 (China); Deng, Z. J. [Department of Physics, National University of Defense Technology, Changsha 410073 (China)

2011-02-15T23:59:59.000Z

164

EA-2007: Groton-Ordway 115-kV Transmission Line, Groton, South Dakota  

Broader source: Energy.gov [DOE]

DOE’s Western Area Power Administration (Upper Great Plains Region) is preparing an EA that assesses the potential environmental impacts of a proposal to construct a new 115-kV transmission line that would connect Western’s existing Groton and Ordway Substations near Groton, South Dakota.

165

An empirical study of the economies of scale in AC transmission line construction costs  

E-Print Network [OSTI]

of the logarithm of the cost per unit capacity per unit length against various explanatory parameters: · the year is to empirically evaluate the cost of transmission projects built in the United States in the last decade using capacity of the line. That is, the cost per unit nominal capacity per unit length is roughly constant over

Baldick, Ross

166

Electromagnetic interference from transmission lines located in central region of Saudi Arabia  

SciTech Connect (OSTI)

This paper discusses the electromagnetic interference (EMI) generated by transmission lines operating in the Central Region of Saudi Arabia. These lines have operating voltages of 132, 230 and 380 kV and are located in a hot, dry arid desert land where precipitaton is very low. Measurements of typical EMI characteristics such as frequency spectrum, lateral profile and statistical variation are performed for each type of line and results are analyzed. It is found that general noise characteristic of these lines are similar to those reported in the literature for other lines which are located in relatively wet environment. The results further show that if operating gradients are low, the increase of EMI due to rain is lower than 20 dB value usually observed. The presence of sand and dust storms does not increase EMI level in any appreciable manner. The fair weather EMI level of these lines can be predicted with reasonable accuracy by using the CIGRE formula. Results are also presented for power line carrier related EMI.

Al-Arainy, A.A.; Malik, N.H.; Abdul-Aal, L.N.

1988-01-01T23:59:59.000Z

167

Electromagnetic interference from transmission lines located in central region of Saudi Arabia  

SciTech Connect (OSTI)

This paper discusses the electromagnetic interference (EMI) generated by transmission lines operating in the Central Region of Saudi Arabia. These lines have operating voltages of 132, 230 and 380 kV and are located in a hot, dry arid desert land where precipitation is very low. Measurements of typical EMI characteristics such as frequency spectrum, lateral profile and statistical variation are performed for each type of line and results are analyzed. It is found that general noise characteristic of these lines are similar to those reported in the literature for other lines which are located in relatively wet environment. The results further show that if operating gradients are low, the increase of EMI due to rain is lower than 20 dB value usually observed. The presence of sand and dust storms does not increase EMI level in any appreciable manner. The fair weather EMI level of these lines can be predicted with reasonable accuracy by using the CIGRE formula. Results are also presented for power line carrier related EMI.

Al-Arainy, A.A.; Malik, N.H.; Abdul-Aal, L.N.

1989-01-01T23:59:59.000Z

168

Three-dimensional isotropic perfect lens based on LC-loaded transmission lines  

E-Print Network [OSTI]

An isotropic three-dimentional perfect lens based on cubic meshes of interconnected transmission lines and bulk loads is proposed. The lens is formed by a slab of a loaded mesh placed in between two similar unloaded meshes. The dispersion equations and the characteristic impedances of the eigenwaves in the meshes are derived analytically, with an emphasis on generality. This allows designing of transmission-line meshes with desired dispersion properties. The required backward-wave mode of operation in the lens is realized with simple inductive and capacitive loads. An analytical expression for the transmission through the lens is derived and the amplification of evanescent waves is demonstrated. Factors that influence enhancement of evanescent waves in the lens are studied and the corresponding design criteria are established. A possible realization of the structure is outlined.

P. Alitalo; S. Maslovski; S. Tretyakov

2005-09-16T23:59:59.000Z

169

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

SciTech Connect (OSTI)

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).

NONE

1995-05-01T23:59:59.000Z

170

Modelling Quantum Mechanics by the Quantumlike Description of the Electric Signal Propagation in Transmission Lines  

E-Print Network [OSTI]

It is shown that the transmission line technology can be suitably used for simulating quantum mechanics. Using manageable and at the same time non-expensive technology, several quantum mechanical problems can be simulated for significant tutorial purposes. The electric signal envelope propagation through the line is governed by a Schrodinger-like equation for a complex function, representing the low-frequency component of the signal, In this preliminary analysis, we consider two classical examples, i.e. the Frank-Condon principle and the Ramsauer effect.

R. Fedele; M. A. Man'ko; V. I. Man'ko; V. G. Vaccaro

2002-07-30T23:59:59.000Z

171

1076 IEEE TRANSACTIONS ON SMART GRID, VOL. 4, NO. 2, JUNE 2013 Wireless Network Design for Transmission Line  

E-Print Network [OSTI]

1076 IEEE TRANSACTIONS ON SMART GRID, VOL. 4, NO. 2, JUNE 2013 Wireless Network Design for Transmission Line Monitoring in Smart Grid Benazir Fateh, Student Member, IEEE, Manimaran Govindarasu, Senior for smart grid integration [2], [3]. Wireless sensor based monitoring of transmission lines provides

Manimaran, Govindarasu

172

Lumped Model of Transmission Line In the Instrumentation Studio, we use both a coil of coax (around 80-100 meters long)  

E-Print Network [OSTI]

Lumped Model of Transmission Line In the Instrumentation Studio, we use both a coil of coax (around 80-100 meters long) and an equivalent lumped model of the coil of coax to study transmission lines.7 Ideal Transmission Line Frequency Volts respectively. In Project 2 (Spring 2000) we use the lumped line

Lü, James Jian-Qiang

173

EA-1679: Grand Coulee's Third Powerplant 500-kV Transmission Line Replacement Project, Grant and Okanogon Counties, Washington  

Broader source: Energy.gov [DOE]

This EA evaluates potential environmental impacts from the construction and operation of six new 500-kV overhead transmission lines to replace six existing underground lines at Grand Coulee Dam. DOE’s Bonneville Power Administration (BPA), a cooperating agency, was asked by the U. S. Department of the Interior’s Bureau of Reclamation to design and construct the proposed new transmission lines. A Finding of No Significant Impact was issued by BPA in December 2011.

174

AC and lightning performance of fiberglass crossarms aged in 115 kV transmission line  

SciTech Connect (OSTI)

This paper presents the results of an investigation of the electrical performance of 115 kV transmission line fiberglass cross-arm used by Mississippi Power and Light Company. A transmission line fiberglass crossarm removed from service and companion cross-arms outdoors but not in service were examined. The evaluation of electrical performance was based on flashover voltage value at AC voltage and standard lightning impulses as well as under dry and wet conditions. The tests were performed in the Mississippi State University High Voltage Laboratory. The obtained flashover voltages show no large differences in electrical strength of fiberglass crossarms removed from service and those stored outdoors. The Added CFO voltage by fiberglass crossarm to the porcelain suspension insulators is presented versus the length of the fiberglass crossarm for dry and wet conditions.

Grzybowski, S. (Mississippi State Univ., Mississippi State, MS (United States). Dept. of Electrical and Computer Engineering); Jenkins, E.B. (Entergy, New Orleans, LA (United States). Generation and Transmission Group)

1993-10-01T23:59:59.000Z

175

Coupling mid-infrared light from a photonic crystal waveguide to metallic transmission lines  

SciTech Connect (OSTI)

We propose and theoretically study a hybrid structure consisting of a photonic crystal waveguide (PhC-wg) and a two-wire metallic transmission line (TL), engineered for efficient transfer of mid-infrared (mid-IR) light between them. An efficiency of 32% is obtained for the coupling from the transverse magnetic (TM) photonic mode to the symmetric mode of the TL, with a predicted intensity enhancement factor of 53 at the transmission line surface. The strong coupling is explained by the small phase velocity mismatch and sufficient spatial overlapping between the modes. This hybrid structure could find applications in highly integrated mid-IR photonic-plasmonic devices for biological and gas sensing, among others.

Blanco-Redondo, Andrea, E-mail: andrea.blanco@tecnalia.com, E-mail: r.hillenbrand@nanogune.eu [ICT-European Software Institute Division, Tecnalia, Ibaizabal Bidea, Ed. 202, 48170 Zamudio, Bizkaia (Spain) [ICT-European Software Institute Division, Tecnalia, Ibaizabal Bidea, Ed. 202, 48170 Zamudio, Bizkaia (Spain); Dpto. Electronica y Telecom., E.T.S. Ingeniería Bilbao, UPV/EHU, Alda. Urquijo, 48103 Bilbao, Bizkaia (Spain); Sarriugarte, Paulo [Nanooptics Group, CIC nanoGUNE Consolider, 20018 Donostia–San Sebastian, Gipuzkoa (Spain)] [Nanooptics Group, CIC nanoGUNE Consolider, 20018 Donostia–San Sebastian, Gipuzkoa (Spain); Garcia-Adeva, Angel [Dpto. Fisica Aplicada I, E.T.S. Ingeniería de Bilbao, UPV-EHU, Alda. Urquijo, 48103 Bilbao, Bizkaia (Spain)] [Dpto. Fisica Aplicada I, E.T.S. Ingeniería de Bilbao, UPV-EHU, Alda. Urquijo, 48103 Bilbao, Bizkaia (Spain); Zubia, Joseba [Dpto. Electronica y Telecom., E.T.S. Ingeniería Bilbao, UPV/EHU, Alda. Urquijo, 48103 Bilbao, Bizkaia (Spain)] [Dpto. Electronica y Telecom., E.T.S. Ingeniería Bilbao, UPV/EHU, Alda. Urquijo, 48103 Bilbao, Bizkaia (Spain); Hillenbrand, Rainer, E-mail: andrea.blanco@tecnalia.com, E-mail: r.hillenbrand@nanogune.eu [Nanooptics Group, CIC nanoGUNE Consolider, 20018 Donostia–San Sebastian, Gipuzkoa (Spain) [Nanooptics Group, CIC nanoGUNE Consolider, 20018 Donostia–San Sebastian, Gipuzkoa (Spain); IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Bizkaia (Spain)

2014-01-06T23:59:59.000Z

176

Hybrid particle traps and conditioning procedure for gas insulated transmission lines  

DOE Patents [OSTI]

A gas insulated transmission line includes an outer sheath, an inner condor within the outer sheath, insulating supports supporting the inner conductor within the outer sheath, and an insulating gas electrically insulating the inner conductor from the outer sheath. An apertured particle trapping ring is disposed within the outer sheath, and the trapping ring has a pair of dielectric members secured at each longitudinal end thereof, with the dielectric members extending outwardly from the trapping ring along an arc. A support sheet having an adhesive coating thereon is secured to the trapping ring and disposed on the outer sheath within the low field region formed between the trapping ring and the outer sheath. A conditioning method used to condition the transmission line prior to activation in service comprises applying an AC voltage to the inner conductor in a plurality of voltage-time steps, with the voltage-time steps increasing in voltage magnitude while decreasing in time duration.

Dale, Steinar J. (Monroeville, PA); Cookson, Alan H. (Churchill, PA)

1982-01-01T23:59:59.000Z

177

Quantum transducers: Integrating Transmission Lines and Nanomechanical Resonators via Charge Qubits  

E-Print Network [OSTI]

We propose a mechanism to interface a transmission line resonator (TLR) with a nano-mechanical resonator (NAMR) by commonly coupling them to a charge qubit, a Cooper pair box with a controllable gate voltage. Integrated in this quantum transducer or simple quantum network, the charge qubit plays the role of a controllable quantum node coherently exchanging quantum information between the TLR and NAMR. With such an interface, a maser-like process is predicted to create a quasi-classical state of the NAMR by controlling a single-mode classical current in the TLR. Alternatively, a "Cooper pair" coherent output through the transmission line can be driven by a single-mode classical oscillation of the NAMR.

C. P. Sun; L. F. Wei; Yu-xi Liu; Franco Nori

2005-08-16T23:59:59.000Z

178

Termination for a superconducting power transmission line including a horizontal cryogenic bushing  

DOE Patents [OSTI]

A termination for a superconducting power transmission line is disclosed which is comprised of a standard air entrance insulated vertical bushing with an elbow, a horizontal cryogenic bushing linking the pressurized cryogenic cable environment to the ambient temperature bushing and a stress cone which terminates the cable outer shield and transforms the large radial voltage gradient in the cable dielectric into a much lower radial voltage gradient in the high density helium coolant at the cold end of the cryogenic bushing.

Minati, Kurt F. (Northport, NY); Morgan, Gerry H. (Patchogue, NY); McNerney, Andrew J. (Shoreham, NY); Schauer, Felix (Upton, NY)

1984-01-01T23:59:59.000Z

179

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. Additional information is available on Western’s project website.

180

Particle trap with dielectric barrier for use in gas insulated transmission lines  

DOE Patents [OSTI]

A gas-insulated transmission line includes an outer sheath, an inner conductor within the outer sheath, insulating supports supporting the inner conductor within the outer sheath, and an insulating gas electrically insulating the inner conductor from the outer sheath. An apertured particle trapping electrode is disposed within the outer sheath, and the electrode has a pair of dielectric members secured at each longitudinal end thereof, with the dielectric members extending outwardly from the apertured electrode.

Dale, Steinar J. (Monroeville, PA)

1982-01-01T23:59:59.000Z

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


181

EA-1551: Montana Alberta Tie Ltd. (MATL) 230-KV Transmission Line  

Broader source: Energy.gov [DOE]

DOE started to prepare, jointly with the Montana Department of Environmental Quality (MDEQ), an EA that would also serve as a state EIS. The document would evaluate the potential environmental impacts of a proposed international transmission line that would cross the U.S.-Canada border in northwest Montana. Based on comments received on the DOE Draft EA/MDEQ Draft EIS, DOE cancelled preparation of the EA and announced preparation of DOE/EIS-0399 (of the same title).

182

Particle trap with dielectric barrier for use in gas insulated transmission lines  

DOE Patents [OSTI]

A gas-insulated transmission line includes an outer sheath, an inner conductor within the outer sheath, insulating supports supporting the inner conductor within the outer sheath, and an insulating gas electrically insulating the inner conductor from the outer sheath. An apertured particle trapping electrode is disposed within the outer sheath, and the electrode has a pair of dielectric members secured at each longitudinal end thereof, with the dielectric members extending outwardly from the apertured electrode. 7 figs.

Dale, S.J.

1982-06-15T23:59:59.000Z

183

Horizontal cryogenic bushing for the termination of a superconducting power-transmission line  

DOE Patents [OSTI]

A termination for a superconducting power transmission line is disclosed which is comprised of a standard air entrance insulated vertical bushing with an elbow, a horizontal cryogenic bushing linking the pressurized cryogenic cable environment to the ambient temperature bushing and a stress cone which terminated the cable outer shield and transforms the large radial voltage gradient in the cable dielectric into a much lower radial voltage gradient in the high density helium coolant at the cold end of the cryogenic bushing.

Minati, K.F.; Morgan, G.H.; McNerney, A.J.; Schauer, F.

1982-07-29T23:59:59.000Z

184

EIS-0365: Imperial-Mexicali 230-kV Transmission Lines  

Broader source: Energy.gov [DOE]

On February 27, 2001, Baja California Power, Inc. (hereafter referred to as Intergen), InterGen Aztec Energy, V.B.V., filed an application with DOE, Office of Fossil Energy, for a Presidential permit that would allow construction and connection of a double-circuit, 230-kV transmission line extending from the Imperial Valley Substation in California for a distance of about 6 mi (10 km) to a point west of Calexico at the U.S.-Mexico border.

185

EIS-0301: NRG Energy Services, Inc., Arizona-Baja California 500 kV Transmission Line  

Broader source: Energy.gov [DOE]

This EIS analyzes DOE's decision to approve NRG Energy, Inc. (NRG) for a Presidential permit to construct a 500,000-volt transmission line originating at the switchyard of the Palo Verde Nuclear Generating Station near Phoenix, Arizona, and extending approximately 177 miles to the southwest, where it would cross the United States (U.S.) border with Mexico in the vicinity of Calexico, California.

186

Bias-field controlled phasing and power combination of gyromagnetic nonlinear transmission lines  

SciTech Connect (OSTI)

Gyromagnetic Nonlinear Transmission Lines (NLTLs) generate microwaves through the damped gyromagnetic precession of the magnetic moments in ferrimagnetic material, and are thus utilized as compact, solid-state, frequency agile, high power microwave (HPM) sources. The output frequency of a NLTL can be adjusted by control of the externally applied bias field and incident voltage pulse without physical alteration to the structure of the device. This property provides a frequency tuning capability not seen in many conventional e-beam based HPM sources. The NLTLs developed and tested are mesoband sources capable of generating MW power levels in the L, S, and C bands of the microwave spectrum. For an individual NLTL the output power at a given frequency is determined by several factors including the intrinsic properties of the ferrimagnetic material and the transmission line structure. Hence, if higher power levels are to be achieved, it is necessary to combine the outputs of multiple NLTLs. This can be accomplished in free space using antennas or in a transmission line via a power combiner. Using a bias-field controlled delay, a transient, high voltage, coaxial, three port, power combiner was designed and tested. Experimental results are compared with the results of a transient COMSOL simulation to evaluate combiner performance.

Reale, D. V., E-mail: david.reale@ttu.edu; Bragg, J.-W. B.; Gonsalves, N. R.; Johnson, J. M.; Neuber, A. A.; Dickens, J. C.; Mankowski, J. J. [Center for Pulsed Power and Power Electronics, Texas Tech University, Lubbock, Texas 79409 (United States)

2014-05-15T23:59:59.000Z

187

Effect of Pressure Transmission Lines on the Frequency Response of Pressure Transducers  

SciTech Connect (OSTI)

It is well known that the length and diameter of the transmission lines between a pressure transducer and the pressure source can significantly affect the dynamic frequency response of the transducer. A new lumped parameter model has been developed to predict the time and frequency response of any number of different transducers connected in parallel in a manifold. While the model is simple to apply, it can provide quantitative information given the transducer and transmission line characteristic parameters. More importantly, the model can be used to evaluate the measured, in-situ response. this provides the natural frequency and the effective damping which can then be used to generate a frequency response curve. The model is also useful for designing a new pressure transmission system, which will have the required frequency response. The model was qualified by comparison to measurements of the step-function pressure response of a number of different transducers and test installations. With the aid of the model, the system resonant frequency and damping can be determined. Additional damping can be added if necessary to prevent ringing of the signal and to assure an accurate pressure measurement with a flat frequency response. For all of the experimental systems evaluated in this work, the response at the natural frequency was significantly underdamped and ringing was observed. This means that to perform accurate measurements damping needs to be added to the system. It was observed that the use of flexible pressure lines versus hard lines does increase the damping and may therefore be useful in certain situations. Equations were developed to permit sizing an orifice to be added to the system to provide the necessary damping.

G.J. Kirouac

2000-11-13T23:59:59.000Z

188

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

SciTech Connect (OSTI)

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.

Not Available

1994-02-01T23:59:59.000Z

189

Summit-Watertown transmission line project, South Dakota. Final Environmental Assessment  

SciTech Connect (OSTI)

The Western Area Power Administration (Western) needs to rebuild the existing Summit-Watertown 115-kV transmission line, located in northeastern South Dakota, and western Minnesota. Nearly 60 percent of the existing facility was replaced in 1965 after severe ice-loading broke structures and wires. Because of the extensive loss of the line, surplus poles had to be used to replace the damaged H-frame structures. These were of varying sizes, causing improper structure loading. Additionally, the conductors and overhead shield wires have been spliced in numerous places. This provides additional space on these wires for icing and wind resistance, which in turn create problems for reliability. Finally, a progressive fungal condition has weakened the poles and, along with the improper loading, has created an unsafe condition for maintenance personnel and the general public.

Not Available

1993-12-01T23:59:59.000Z

190

EA-1951: Midway-Moxee Rebuild and Midway-Grandview Upgrade Transmission Line, Benton and Yakima Counties, Washington  

Broader source: Energy.gov [DOE]

Bonneville Power Administration is preparing an EA to assess the potential environmental impacts of the proposed rebuild of the 34-mile Midway-Moxee transmission line in Benton and Yakima Counties, Washington.

191

Abstract -In this paper, new formulations for the energy dissipation of lossy transmission lines driven by CMOS inverters are provided, and a new  

E-Print Network [OSTI]

Abstract - In this paper, new formulations for the energy dissipation of lossy transmission lines for the driving-point impedance of lossy coupled transmission lines which itself is derived by solving Telegrapher the transmission line for a broad range of frequencies are synthesized. Experimental results show that the energy

Heydari, Payam

192

Group velocities in coplanar strip transmission lines on Si and Si/SiO2 /Si substrates measured using differential electro-optic sampling  

E-Print Network [OSTI]

Group velocities in coplanar strip transmission lines on Si and Si/SiO2 /Si substrates measured 1996; accepted for publication 26 August 1996 The group velocities in coplanar strip transmission lines-9 Velocity measurements have been previously carried out for coplanar transmission lines on a variety

193

IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 15, NO. 12, DECEMBER 2007 1289 Efficient Modeling of Transmission Lines With  

E-Print Network [OSTI]

1289 Efficient Modeling of Transmission Lines With Electromagnetic Wave Coupling by Using the Finite the transmission line with radiated electromagnetic (EM) wave noise coupling. A discrete modeling approach, the FDQ method adapts coarse grid points along the transmission line to compute the finite difference between

Mazumder, Pinaki

194

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 60- to 67-mile long 230-kV transmission line. BPA’s proposed action is to interconnect the transmission line to an existing BPA substation. Additional information is available at http://www.blm.gov/or/districts/spokane/plans/vph230/.

195

Particle trap to sheath contact for a gas-insulated transmission line having a corrugated outer conductor  

DOE Patents [OSTI]

A particle trap to outer elongated conductor or sheath contact for gas-insulated transmission lines. The particle trap to outer sheath contact of the invention is applicable to gas-insulated transmission lines having either corrugated or non-corrugated outer sheaths. The contact of the invention includes an electrical contact disposed on a lever arm which in turn is rotatably disposed on the particle trap and biased in a direction to maintain contact between the electrical contact and the outer sheath.

Fischer, William H. (Pittsburgh, PA); Cookson, Alan H. (Pittsburgh, PA); Yoon, Kue H. (Pittsburgh, PA)

1984-04-10T23:59:59.000Z

196

Design and Manufacture of the RF Power Supply and RF Transmission Line for SANAEM Project Prometheus  

E-Print Network [OSTI]

A 1-5 MeV proton beamline is being built by the Turkish Atomic Energy Authority in collaboration with a number of graduate students from different universities. The most important aspect of the project, is to acquire the design ability and manufacturing capability of all the components locally. SPP will be an accelerator and beam diagnostics test facility and it will also serve the detector development community with its low beam current. This paper discusses the design and construction of the RF power supply and the RF transmission line components such as its waveguide converters and its circulator.

Turemen, G; Unel, G; Alacakir, A

2015-01-01T23:59:59.000Z

197

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.

198

EIS-0112: Rifle to San Juan 345-kV Transmission Line and Associated Facilities  

Broader source: Energy.gov [DOE]

The U.S. Department of Agriculture - Rural Electrification Administration developed this statement to evaluate the environmental impacts of the Colorado-Ute Electric Association Inc. and the U.s. Department of Energy's Western Area Power Administration (WAPA) constructing and operating a 345-kilovolt transmission line from Rifle, Colorado, to the San Juan Generating Station near Farmington, New Mexico. WAPA served as a cooperating agency in the preparation of this statement and adopted it on 10/30/1984. WAPA assumed the lead role for project implementation after issuance of the final statement.

199

EA-1931: Keeler to Tillamook Transmission Line Rebuild Project, Washington and Tillamook Counties, Oregon  

Broader source: Energy.gov [DOE]

Bonneville Power Administration prepared this EA to assess the potential environmental impacts of the proposed rebuild of the Keeler-Forest Grove and Forest Grove-Tillamook 115-kilovolt (kV) transmission lines between the cities of Hillsboro and Tillamook, in Washington and Tillamook Counties, Oregon. The 58-mile-long rebuild would include replacement of all wood-pole structures over 10 years in age. Some existing access roads would be improved to accommodate construction equipment and some new road access would be acquired or constructed in areas where access is not available.

200

Electronically controllable transmission line design for traveling wave array antenna feed network  

E-Print Network [OSTI]

wave propagation in MIS waveguide. Krowne and Tait numerically analyzed a voltage-variable GaAs distributed Schottky barrier phase shifter and a transmission line over a Si bipolar junction [6]. In order to find the propagation constant, a transport... by attaching distributed p-i-n diodes on the side surfaces of the silicon rod. By introducing forward bias, which makes the i-region conductive, the guide wavelength in the silicon rod is changed because of the moving up effect of the conductor...

Shin, Chang-Seok

2012-06-07T23:59:59.000Z

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


201

EIS-0414: Presidential Permit Application, Energia Sierra Juarez Transmission Line, California  

Broader source: Energy.gov [DOE]

This EIS evaluates the potential environmental impacts from DOE’s proposed Federal action of granting a Presidential permit to Energia Sierra Juarez U.S. Tranmssion, LLC (ESJ-U.S.), a subsidiary of Sempra Generation, to construct, operate, maintain, and connect a 1.7-mile transmission line (0.65 miles in the U.S.) across the international border between the U.S. and Mexico, near the town of Jacumba, California. The County of San Diego is a cooperating agency in the preparation of this EIS.

202

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.

203

Discrete-Time Block Models for Transmission Line Channels: Static and Doubly Selective Cases  

E-Print Network [OSTI]

Most methodologies for modeling Transmission Line (TL) based channels define the input-output relationship in the frequency domain (FD) and handle the TL resorting to a two-port network (2PN) formalism. These techniques have not yet been formally mapped into a discrete-time (DT) block model, which is useful to simulate and estimate the channel response as well as to design optimal precoding strategies. TL methods also fall short when they are applied to Time Varying (TV) systems, such as the power line channel. The objective of this paper is to establish if and how one can introduce a DT block model for the Power Line Channel. We prove that it is possible to use Lifting and Trailing Zeros (L&TZ) techniques to derive a DT block model that maps the TL-based input-output description directly in the time domain (TD) block channel model. More specifically, we find an interesting relationship between the elements of an ABCD matrix, defined in the FD, and filtering kernels that allow an elegant representation of...

Galli, Stefano

2011-01-01T23:59:59.000Z

204

The commercial development of water repellent coatings for high voltage transmission lines  

SciTech Connect (OSTI)

The purpose of the Cooperative Research and Development Agreement (CRADA) between UT-Battelle, LLC and Southwire Company was to jointly develop a low cost, commercially viable, water-repellant anti-icing coating system for high voltage transmission lines. Icing of power lines and other structures caused by freezing rain events occurs annually in the United States, and leads to severe and prolonged power outages. These outages cause untold economic and personal distress for many American families and businesses. Researchers at the Department of Energy s Oak Ridge National Laboratory (ORNL) in Oak Ridge, Tennessee have previously developed a set of superhydrophobic coatings with remarkable anti-icing properties that could potentially be sprayed or painted onto high-tension power lines and pylons. These coatings drastically reduce ice accumulation on these structures during freezing rain events. The project involved obtaining technical input, supplies and test high voltage cables from Southwire, along with the joint development of anti-icing coating techniques, which would result in a commercial license agreement between Southwire and ORNL, and potentially other companies requiring water repellent anti-icing coatings.

Hunter, Scott Robert [ORNL

2013-10-01T23:59:59.000Z

205

The commercial development of water repellent coatings for high voltage transmission lines  

SciTech Connect (OSTI)

The purpose of the Cooperative Research and Development Agreement (CRADA) between UT-Battelle, LLC and Southwire Company was to jointly develop a low cost, commercially viable, water-repellant anti-icing coating system for high voltage transmission lines. Icing of power lines and other structures caused by freezing rain events occurs annually in the United States, and leads to severe and prolonged power outages. These outages cause untold economic and personal distress for many American families and businesses. Researchers at the Department of Energy?s Oak Ridge National Laboratory (ORNL) in Oak Ridge, Tennessee have previously developed a set of superhydrophobic coatings with remarkable anti-icing properties that could potentially be sprayed or painted onto high-tension power lines and pylons. These coatings drastically reduce ice accumulation on these structures during freezing rain events. The project involved obtaining technical input, supplies and test high voltage cables from Southwire, along with the joint development of anti-icing coating techniques, which would result in a commercial license agreement between Southwire and ORNL, and potentially other companies requiring water repellent anti-icing coatings.

Hunter, S. R. [ORNL] [ORNL; Daniel, A. [Southwire Company] [Southwire Company

2013-10-31T23:59:59.000Z

206

Overhead electric power transmission line jumpering system for bundles of five or more subconductors  

DOE Patents [OSTI]

Jumpering of electric power transmission lines at a dead end tower. Two transmission line conductor bundles each contain five or more spaced apart subconductors (5) arranged in the shape of a cylinder having a circular cross section. The ends of each bundle of subconductors are attached with insulators to a dead end tower (1). Jumpering allows the electric current to flow between the two bundles of subconductors using jumper buses, internal jumper conductors, and external jumper conductors. One or more current collecting jumper buses (37) are located inside each bundle of subconductors with each jumper bus being attached to the end of a subconductor. Small-diameter internal jumper conductors (33) are located in the inherently electrically shielded area inside each bundle of subconductors with each subconductor (except ones having an attached jumper bus) having one internal jumper conductor connected between that subconductor's end and a jumper bus. Large-diameter external jumper conductors (9) are located outside each bundle of subconductors with one or more external jumper conductors being connected between the jumper buses in one bundle of subconductors and the jumper buses in the other bundle.

Winkelman, Paul F. (Beaverton, OR)

1982-01-01T23:59:59.000Z

207

Investigation of a high impedance magnetically insulated transmission line oscillator with hollow load  

SciTech Connect (OSTI)

A novel high-impedance magnetically insulated transmission line oscillator (MILO) with greatly restrained power deposition on the anode has been investigated. Methods to increase the MILO impedance and decrease the anode current are discussed. A MILO with impedance of 30 {Omega} and power conversion efficiency of 25% is presented by particle-in-cell simulations. Compared with the previous MILO in our lab, the anode current of the proposed MILO is reduced about 50%, the power conversion efficiency doubles, and the power deposition on anode is reduced nearly one half. Furthermore, considerations for reducing the power deposition on load have also been carried out in MILO design, and the load current is reduced to 4.6 kA, only 17% of the total anode current. Finally, a hollow load was introduced to reduce the power deposition density on the load, without decreasing the power conversion efficiency.

Zhou Heng; Shu Ting; Li Zhiqiang [College of Opto-electric Science and Engineering, National University of Defense Technology, Hunan 410073 (China)

2012-09-15T23:59:59.000Z

208

Vertically aligned gas-insulated transmission line having particle traps at the inner conductor  

DOE Patents [OSTI]

Gas insulated electrical apparatus having first and second conductors separated by an insulating support within an insulating gas environment, and particle traps disposed along the surface of the high potential conductor for trapping and inactivating foreign particles which may be present within the insulating gas medium. Several embodiments of the invention were developed which are particularly suited for vertically aligned gas insulated transmission lines. The particle traps are grooves or cavities formed into the walls of the tubular inner conductor, without extending into the hollow portion of the conductor. In other embodiments, the traps are appendages or insert flanges extending from the inner conductor, with the insulator supports contacting the appendages instead of the inner conductor.

Dale, Steinar J. (Monroeville, PA)

1984-01-01T23:59:59.000Z

209

Theoretical and experimental investigation of axial power extraction from a magnetically insulated transmission line oscillator  

SciTech Connect (OSTI)

The utility of the magnetically insulated transmission line oscillator (MILO) as a high power microwave source depends on how efficiently power can be extracted from it. We have designed a slow-wave stepped transformer for the purpose of axially extracting microwave power from a 3.6 GHz coaxial MILO. The slow-wave transformer design was optimized using particle-in-cell simulation, and tested in experiments performed on the HPM Simulation Division's GEMINI and GYPSY water Blumlein pulse power sources. In this paper we summarize the slow-wave stepped transformer design, and describe MILO axial power extraction experiments which yielded up to 300 MW of radiated power. 10 refs., 4 figs., 2 tabs.

Lemke, R.W.; DeMuth, G.E.; Biggs, A.W. (Sandia National Labs., Albuquerque, NM (USA); Air Force Weapons Lab., Kirtland AFB, NM (USA); Alabama Univ., Huntsville, AL (USA). Dept. of Electrical and Computer Engineering)

1989-01-01T23:59:59.000Z

210

Semi-flexible gas-insulated transmission line using electric field stress shields  

DOE Patents [OSTI]

A gas-insulated transmission line includes an outer sheath, an inner conductor, an insulating gas electrically insulating the inner conductor from the outer sheath, and insulating supports insulatably supporting the inner conductor within the outer sheath. The inner conductor is provided with flexibility by use of main conductor sections which are joined together through a conductor hub section and flexible flexing elements. Stress shields are provided to control the electric field at the locations of the conductor hub sections where the insulating supports are contacting the inner conductor. The flexing elements and the stress shields may also be utilized in connection with a plug and socket arrangement for providing electrical connection between main conductor sections. 10 figs.

Cookson, A.H.; Dale, S.J.; Bolin, P.C.

1982-12-28T23:59:59.000Z

211

Semi-flexible gas-insulated transmission line using sandwiched discs for intermittent flexing joints  

DOE Patents [OSTI]

A gas-insulated transmission line includes an outer sheath, an inner conductor, an insulating gas electrically insulating the inner conductor from the outer sheath, and insulating supports insulatably supporting the inner conductor within the outer sheath. The inner conductor is provided with flexibility by the use of main conductor sections which are joined together through a conductor hub section and flexible flexing elements. Stress shields are provided to control the electric field at the locations of the conductor hub sections where the insulating supports are contacting the inner conductor. The flexing elements are formed by sandwiching together, by fusing, a pair of thin hollow discs which are fixedly secured to both the main conductor sections and the conductor hub section. 4 figs.

Kommineni, P.R.

1983-02-15T23:59:59.000Z

212

Complex modes and new amplification regimes in periodic multi transmission lines interacting with an electron beam  

E-Print Network [OSTI]

We show the existence of a new regime of operation for travelling wave tubes (TWTs) composed of slow-wave periodic structures that support two or more electromagnetic modes, with at least two synchronized with an electron beam. The interaction between the slow-wave structure and an electron beam is quantified using a multi transmission line approach (MTL) and transfer matrix analysis leading to the identification of modes with complex Bloch wavenumber. In particular, we report a new operation condition for TWTs based on an electron beam synchronous to two modes exhibiting a degeneracy condition near a band edge in a MTL slow-wave periodic structure. We show a phenomenological change in the band structure of periodic TWT where we observe at least two growing modal cooperating solutions as opposed to a uniform MTL interacting with an electron beam where there is strictly only one growing mode solution.

Othman, Mohamed; Capolino, Filippo

2014-01-01T23:59:59.000Z

213

Extension of Pierce model to multiple transmission lines interacting with an electron beam  

E-Print Network [OSTI]

A possible route towards achieving high power microwave devices is through the use of novel slow-wave structures employing multiple coupled transmission lines (MTLs) whose behavior when coupled to electron beams have not been sufficiently explored. We present the extension of the one-dimensional linearized Pierce theory to MTLs coupled to a single electron beam. We develop multiple formalisms to calculate the k-{\\omega} dispersion relation of the system and find that the existence of a growing wave solution is always guaranteed if the electron propagation constant is larger than or equal to the largest propagation constant of the MTL system. We verify our findings with illustrative examples which bring to light unique properties of the system in which growing waves were found to exist within finite bands of the electron propagation constant and discuss possible approach to improve the gain. By treating the beam-MTL interaction as distributed dependent current generators in the MTL, we derive relations charact...

Tamma, Venkata Ananth

2013-01-01T23:59:59.000Z

214

Coherent soliton communication lines  

SciTech Connect (OSTI)

The data transmission in coherent fiber-optical communication lines using solitons with a variable phase is studied. It is shown that nonlinear coherent structures (solitons) can be applied for effective signal transmission over a long distance using amplitude and optical-phase keying of information. The optimum ratio of the pulse width to the bit slot at which the spectral efficiency (transmitted bits per second and hertz) is maximal is determined. It is shown that soliton fiber-optical communication lines can ensure data transmission at a higher spectral efficiency as compared to traditional communication lines and at a high signal-to-noise ratio.

Yushko, O. V., E-mail: olesya.yushko@gmail.com; Redyuk, A. A.; Fedoruk, M. P.; Turitsyn, S. K. [Novosibirsk State University (Russian Federation)

2014-11-15T23:59:59.000Z

215

The effect of transmission-line corridor edge and successional stage on the animal community. Final report  

SciTech Connect (OSTI)

Using breeding success as a criterion of habitat quality, this report evaluates the suitability of 2 transmission-line corridor habitat types, grassland and shrubland, for open-nesting passerines in western Maryland. The main objectives were to investigate the patterns of fledging success and spatial distribution of nests in each habitat type in relation to the corridor, corridor-forest edge, and the adjacent forest, and to quantify important features of the microhabitat of corridor and forest nests that may influence nest success. The second part of this report examines the effect of a transmission-line corridor on forest animal communities by monitoring their activity patterns in the corridor. Animal activity patterns are compared between a transmission-line corridor that was maintained in shrubby vegetation by selective spraying of herbicides and one that was managed for herbaceous vegetation by mowing with rotary mowers.

Gates, D.J.E.

1982-01-01T23:59:59.000Z

216

Medium Voltage Overhead Power-line Broadband Communications; Transmission Capacity and Electromagnetic Interference  

E-Print Network [OSTI]

and Electromagnetic Interference P. Amirshahi and M. Kavehrad (FIEEE) The Pennsylvania State University, Department distribution networks for broadband power-line communications applications. Electromagnetic interference

Kavehrad, Mohsen

217

The U.S. Department of Energy is reopening the public scoping period for the Northern Pass Transmission Line Project Environmental Impact Statement (EIS).  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy is reopening the public scoping period for the Northern Pass Transmission Line Project Environmental Impact Statement (EIS).

218

Announcement of Change in Public Meeting Location for the Northern Pass Transmission Line Project Published in the Federal Register  

Broader source: Energy.gov [DOE]

The Department announces a change of location for the September 26, 2013 public scoping meeting for the Northern Pass Transmission Line Project to Colebrook Elementary School, 27 Dumont Street, Colebrook, NH. The meeting will be from 5 to 8 p.m.

219

Achieving Near Zero SSN Power Delivery Networks by Eliminating Power Planes and Using Constant Current Power Transmission Lines  

E-Print Network [OSTI]

of discontinuities such as a power plane split or multiple via holes. Even with a solid return current pathAchieving Near Zero SSN Power Delivery Networks by Eliminating Power Planes and Using Constant Current Power Transmission Lines Suzanne Huh, Daehyun Chung, and Madhavan Swaminathan Interconnect

Swaminathan, Madhavan

220

Direct optoelectronic generation and detection of sub-ps-electrical pulses on sub-mm-coaxial transmission lines  

E-Print Network [OSTI]

Direct optoelectronic generation and detection of sub-ps-electrical pulses on sub efficient direct optoelectronic generation of sub-ps-THz pulses on 50 coaxial transmission lines with a 330 with an optoelectronic antenna having sub-ps-time resolution. We observed low-loss, single transverse electromagnetic

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


221

OE Issues Notice of Intent to Prepare an Environmental Impact Statement for the Plains & Eastern Clean Line Transmission Project  

Broader source: Energy.gov [DOE]

On December 21, 2012, DOE’s Office of Electricity Delivery and Energy Reliability (OE) issued a Notice of Intent (NOI) to Prepare an Environmental Impact Statement (EIS) for the Plains & Eastern Clean Line Transmission Project on behalf of the Department and Southwestern Power Administration

222

EA-1629: Herbicide Application within Transmission Line Rights-of-Way in the Ozark-St. Francis National Forest, Arkansas  

Broader source: Energy.gov [DOE]

The Department of the Interior, U.S. Forest Service, with DOE’s Southwestern Area Power Administration as a cooperating agency, is preparing this EA to evaluate the environmental impacts of applying herbicide within transmission line rights-of-way in the Ozark-St. Francis National Forest in Arkansas. NOTE: SWPA's involvement in this EA has ended.

223

Power line detection system  

DOE Patents [OSTI]

A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard.

Latorre, Victor R. (Tracy, CA); Watwood, Donald B. (Tracy, CA)

1994-01-01T23:59:59.000Z

224

Power line detection system  

DOE Patents [OSTI]

A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard. 4 figs.

Latorre, V.R.; Watwood, D.B.

1994-09-27T23:59:59.000Z

225

EIS-0159: Flatiron-Erie 115-kV Transmission Line  

Broader source: Energy.gov [DOE]

"The Western Area Power Administration proposes to build 27 new wood H-frame structures along the line, to replace or modify 45 of the existing structures and to remove 11 of them."

226

DOE/EA-1342: Shelton-Kitsap Transmission Line Rebuild Final Environmen...  

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

document request line: 800-622-4520. It is also available at the BPA, Environment, Fish & Wildlife website: www.efw.bpa.gov. For Further Information, Contact: Dawn R. Boorse -...

227

Comment on ``Return stroke transmission line model for stroke speed near and equal that of light'' by R. Thottappillil, J. Schoene,  

E-Print Network [OSTI]

Comment on ``Return stroke transmission line model for stroke speed near and equal that of light computed using the transmission line (TL) and antenna theory (AT) return-stroke models for a typical subsequent stroke current at the channel base and a return-stroke speed equal to the speed of light (v = c

Florida, University of

228

Transmission Lines, Reflections, and Termination Zo1 Supplementary material to accompany Digital Design Principles and Practices, Fourth Edition, by John F. Wakerly.  

E-Print Network [OSTI]

Transmission Lines, Reflections, and Termination Zo­1 Supplementary material to accompany Digital Design Principles and Practices, Fourth Edition, by John F. Wakerly. ISBN 0-13-186389-4. 2006 Pearson means, without permission in writing by the publisher. Zo: Transmission Lines, Reflections

Greenwood, Garrison W.

229

Recyclable transmission line concept for z-pinch driven inertial fusion energy.  

SciTech Connect (OSTI)

Recyclable transmission lines (RTL)s are being studied as a means to repetitively drive z pinches to generate fusion energy. We have shown previously that the RTL mass can be quite modest. Minimizing the RTL mass reduces recycling costs and the impulse delivered to the first wall of a fusion chamber. Despite this reduction in mass, a few seconds will be needed to reload an RTL after each subsequent shot. This is in comparison to other inertial fusion approaches that expect to fire up to ten capsules per second. Thus a larger fusion yield is needed to compensate for the slower repetition rate in a z-pinch driven fusion reactor. We present preliminary designs of z-pinch driven fusion capsules that provide an adequate yield of 1-4 GJ. We also present numerical simulations of the effect of these fairly large fusion yields on the RTL and the first wall of the reactor chamber. These simulations were performed with and without a neutron absorbing blanket surrounding the fusion explosion. We find that the RTL will be fully vaporized out to a radius of about 3 meters assuming normal incidence. However, at large enough radius the RTL will remain in either the liquid or solid state and this portion of the RTL could fragment and become shrapnel. We show that a dynamic fragmentation theory can be used to estimate the size of these fragmented particles. We discuss how proper design of the RTL can allow this shrapnel to be directed away from the sensitive mechanical parts of the reactor chamber.

De Groot, J. S. (University of California, Davis, CA); Olson, Craig Lee; Cochrane, Kyle Robert (Ktech Corporation, Albuquerque, NM); Slutz, Stephen A.; Vesey, Roger Alan; Peterson, Per F. (University of California, Berkeley, CA)

2003-12-01T23:59:59.000Z

230

Environmental Assessment and Finding of No Significant Impact: Curecanti-Lost Canyon 230-kV Transmission Line Reroute Project, Montrose County, Colorado  

SciTech Connect (OSTI)

The Department of Energy (DOE), Western Area Power Administration (Western) is proposing to reroute a section of the Curecanti-Lost Canyon 230-kilovolt (kV) transmission line, in Montrose County, Colorado. A portion of the transmission line, situated 11 miles southeast of Montrose, Colorado, crosses Waterdog Peak, an area of significant geologic surface activity, which is causing the transmission line's lattice steel towers to shift. This increases stress to structure hardware and conductors, and poses a threat to the integrity of the transmission system. Western proposes to relocate the lattice steel towers and line to a more geologically stable area. The existing section of transmission line and the proposed relocation route cross Bureau of Land Management and private land holdings.

N /A

2000-03-20T23:59:59.000Z

231

Semi-flexible gas-insulated transmission line using protection tube in conductor plug-in joint  

DOE Patents [OSTI]

A gas-insulated transmission line includes an outer sheath, an inner conductor, an insulating gas electrically insulating the inner conductor from the outer sheath, and insulating supports insulatably supporting the inner conductor within the outer sheath. The inner conductor is provided with flexibility by main conductor sections which are joined together through a conductor hub section and flexible flexing elements. Stress shields are provided to control the electric field at the locations of the conductor hub sections where the insulating supports are contacting the inner conductor. A plug and socket arrangement is utilized for joining adjacent sections of the inner conductor, and a protection tube is utilized inside the hollow plug to maintain proper alignment of the joint when the transmission line is bent. 3 figs.

Kommineni, P.R.

1983-01-25T23:59:59.000Z

232

Particle trap to sheath non-binding contact for a gas-insulated transmission line having a corrugated outer conductor  

DOE Patents [OSTI]

A non-binding particle trap to outer sheath contact for use in gas insulated transmission lines having a corrugated outer conductor. The non-binding feature of the contact according to the teachings of the invention is accomplished by having a lever arm rotatably attached to a particle trap by a pivot support axis disposed parallel to the direction of travel of the inner conductor/insulator/particle trap assembly.

Fischer, William H. (Pittsburgh, PA)

1984-04-24T23:59:59.000Z

233

EIS-0025: Miles City-New Underwood 230-kV Electrical Transmission Line, Montana, North Dakota, and South Dakota  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy’s Western Area Power Administration prepared this statement to assess the environmental and socioeconomic implications of its proposed action to construct a 3.28-mile, 230-kV transmission line between Miles City and Baker, Montana , Hettinger, North Dakota , and New Underwood , South Dakota , in Custer and Fallon Counties in Montana, Adams , Bowman , and Slope Counties in North Dakota and Meade, Pennington, and Perkins Counties in South Dakota.

234

Seasonal Patterns of Melatonin, Cortisol, and Progesterone Secretion in Female Lambs Raised Beneath a 500-kV Transmission Line.  

SciTech Connect (OSTI)

Although several kinds of biological effects of electric and magnetic fields have been reported from laboratory studies, few have been independently replicated. When this study was being planned, the suppression of nighttime melatonin in rodents was thought to represent one of the strongest known effects of these fields. The effect had been replicated by a single laboratory for 60-Hz electric fields, and by multiple laboratories for d-c magnetic fields. The primary objective of this study was to determine whether the effect of electric and magnetic fields on melatonin would also occur in sheep exposed to a high voltage transmission line. The specific hypothesis tested by this experiment was as follows: The electrical environment produced by a 60-Hz, 500-kV transmission line causes a depression in nocturnal melatonin in chronically exposed female lambs. This may mimic effects of pinealectomy or constant long-day photoperiods, thus delaying the onset of reproductive cycles. Results of the study do not provide evidence to support the hypothesis. Melatonin concentrations in the sheep exposed to the transmission line showed the normal pattern of low daytime and high nighttime serum levels. As compared to the control group, there were no statistically significant group differences in the mean amplitude, phase, or duration of the nighttime melatonin elevation.

Lee, Jack M.

1992-06-01T23:59:59.000Z

235

Development of NS-TACSR with extremely suppressed aeolian noise and its application to 500 kV overhead transmission lines  

SciTech Connect (OSTI)

Recently in Japan, with the unprecedented advance of residential area development in the suburbs of large cities, it has become quite difficult to secure the routes of EHV transmission lines from nuclear power plants in remote places to the suburbs of large cities, urging resolution of environmental problems related to transmission lines. In Japan, aerodynamic sound produced by conductors and insulators frequently caused noise problems. Having an opportunity of constructing a 500 kV transmission line through a residential are, we made a research to resolve this noise problem. This paper describes the characteristics of aeolian noise and preventive measures against it.

Tsujimoto, K.; Furukawa, S. (Kansai Electric Power Co., Inc., Osaka (Japan)); Shimojima, K.; Yamamoto, K. (Hitachi Cable, Ltd., Hitachi (JP))

1991-10-01T23:59:59.000Z

236

EIS-0365: Draft Environmental Impact Statement for the Imperial-Mexicali 230-kV Transmission Lines, EIS-0365 (May 2004)  

Broader source: Energy.gov [DOE]

A U.S. Department of Energy (DOE) Presidential permit is required to construct an electric transmission line across the U.S. international border. On February 27, 2001, Baja California Power, Inc. ...

237

Abstract -In this paper, new formulations for the energy dissipation of lossy transmission lines driven by CMOS inverters are provided, and a new performance metric for the energy optimization under the delay  

E-Print Network [OSTI]

Abstract - In this paper, new formulations for the energy dissipation of lossy transmission lines for the driving-point impedance of lossy coupled transmission lines which itself is derived by solving Telegra stable circuits that are capable of modeling the transmission line for a broad range of frequencies

Pedram, Massoud

238

EA-1617: Lovell-Yellowtail and Basin-Lovell Transmission Line Rebuild Project, Big Horn County, Wyoming, and Big Horn and Carbon Counties, Montana  

Broader source: Energy.gov [DOE]

DOE’s Western Area Power Administration prepared this EA and a finding of no significant impact for a proposal to rebuild the Lovell-Yellowtail (LV-YT) No. 1 and No. 2 115-kV transmission lines, located in Big Horn County, Wyoming, and Big Horn and Carbon Counties in Montana, and the Basin-Lovell 115-kV transmission line in Big Horn County, Wyoming.

239

Influence of the airflow speed along transmission lines on the DC corona discharge loss, using finite element approach  

SciTech Connect (OSTI)

Corona discharge is of great interest from the physical point of view and due to its numerous practical applications in industry and especially one of the most important sources of loss in the high voltage transmission lines. This paper provides guidelines for the amount of electric loss caused by corona phenomenon occurred around a DC high voltage wire placed between two flat plates and influence of wind speed rate on the amount of corona loss using COMSOL Multiphysics. So electric potential distribution patterns and charge density diffusion around the wire are studied in this article.

Shemshadi, A.; Akbari, A. [Electric Department, K. N. Toosi University of Technology, Tehran (Iran, Islamic Republic of); Niayesh, K. [Electric Engineering Department, Tehran University, Tehran (Iran, Islamic Republic of)

2012-07-15T23:59:59.000Z

240

Design and fault analysis of a 345KV 220 mile overhead transmission line.  

E-Print Network [OSTI]

??Efficient and reliable transmission of bulk power economically benefits both the power company and consumer. This report gives clarification to concept and procedure in design… (more)

Clawson, Greg

2012-01-01T23:59:59.000Z

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


241

EIS-0032: 500 kV International Transmission Line NSP-TR-1, Forbes, Minnesota to Manitoba, Canada, Northern States Power Company  

Broader source: Energy.gov [DOE]

The Economic Regulatory Administration developed this EIS to evaluate the environmental impacts of a 500-kilovolt transmission line proposed by the Northern States Power Company to provide a transmission facility for the exchange of electrical energy between Canada and the United States.

242

Abstract -In this paper, new formulations for the energy dissipation of lossy transmission lines driven by CMOS inverters are provided. These  

E-Print Network [OSTI]

inverter inputs. To accomplish this task, a new stable circuit that is capable of modeling the transmission enabling a host of new and powerful applications. Recent studies on the effects caused by the nanometerAbstract - In this paper, new formulations for the energy dissipation of lossy transmission lines

Heydari, Payam

243

EIS-0011: New Melones 230-kV Electrical Transmission Line, Central Valley Project, California  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy's Western Area Power Administration prepared this statement to evaluate the environmental impacts of proposed development of an electrical transmission system for the New Melones Power Plant.

244

Determination of High-Frequency Current Distribution Using EMTP-Based Transmission Line Models with Resulting Radiated Electromagnetic Fields  

SciTech Connect (OSTI)

Application of BPL technologies to existing overhead high-voltage power lines would benefit greatly from improved simulation tools capable of predicting performance - such as the electromagnetic fields radiated from such lines. Existing EMTP-based frequency-dependent line models are attractive since their parameters are derived from physical design dimensions which are easily obtained. However, to calculate the radiated electromagnetic fields, detailed current distributions need to be determined. This paper presents a method of using EMTP line models to determine the current distribution on the lines, as well as a technique for using these current distributions to determine the radiated electromagnetic fields.

Mork, B; Nelson, R; Kirkendall, B; Stenvig, N

2009-11-30T23:59:59.000Z

245

Authorization of Line Extension (Nebraska)  

Broader source: Energy.gov [DOE]

Any entity permitted to establish an electric light and power plant, and/or transmission or distribution lines within a city, village, or public electric light and power district, may also extend...

246

Research and Design of a Sample Heater for Beam Line 6-2c Transmission X-ray Microscope  

SciTech Connect (OSTI)

There exists a need for environmental control of samples to be imaged by the Transmission X-Ray Microscope (TXM) at the SSRLs Beam Line 6-2c. In order to observe heat-driven chemical or morphological changes that normally occur in situ, microscopes require an additional component that effectively heats a given sample without heating any of the microscope elements. The confinement of the heat and other concerns about the heaters integrity limit which type of heater is appropriate for the TXM. The bulk of this research project entails researching different heating methods used previously in microscopes, but also in other industrial applications, with the goal of determining the best-fitting method, and finally in designing a preliminary sample heater.

Policht, Veronica; /Loyola U., Chicago /SLAC

2012-08-27T23:59:59.000Z

247

EIS-0100: Liberty-Coolidge 230-kV Transmission Line, Arizona  

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 various alternatives associated with an upgrade of electrical transmission capability between the Liberty and Coolidge Substations.

248

EIS-0129: New England/Hydro-Quebec 450 kV Transmission Line Interconnection- Phase II  

Broader source: Energy.gov [DOE]

The Economic Regulatory Administration issued this EIS to explore the impacts of amending Presidential Permit PP-76 to allow the Vermont Electrical Company to operate at power levels above those stipulated in the permit and to build additional transmission facilities to distribute the increased power.

249

El Paso Electric Company Diablo Substation to the US-Mexico border 115kV transmission line project. Final Environmental Assessment  

SciTech Connect (OSTI)

This Environmental Assessment documents the analysis of alternative corridors for development and operation of a proposed 115 kilovolt transmission line using private lands and transporting power to the US-Mexico international border. The project will require (1) an amendment to El Paso Electric Company`s existing export authorization to transfer power across this border, and (2) a Presidential Permit for construction of the transmission line. The project would be located in Dona Ana county in southern New Mexico, approximately five miles west of El Paso, Texas. The alternative corridors, specific locations within those corridors, and structure types are identified and analyzed in the environmental studies.

Not Available

1992-04-01T23:59:59.000Z

250

EA-1863: Vegetation Management on the Glen Canyon-Pinnacle Peak Transmission Lines Spanning the Coconino National Forest, Coconino County, Arizona  

Broader source: Energy.gov [DOE]

DOE’s Western Area Power Administration is preparing this EA to evaluate the environmental impacts of updating the vegetation management and right-of-way maintenance program for Western’s Glen Canyon to Pinnacle Peak 345-kV transmission lines, which cross the Coconino National Forest, Coconino County, Arizona.

251

EIS-0067: 230-kV International Transmission Line San Diego County, California to Tijuana, Mexico, San Diego Gas and Electric Company  

Broader source: Energy.gov [DOE]

The Economic Regulatory Administration and the California Public Utilities Commission jointly prepared this EIS to evaluate the environmental impacts of the construction, maintenance and operation of a 10-mile, 230-kilovolt transmission line across the U.S./Mexico border for the purpose of economic exchange of power and increased reliability.

252

EIS-0442: Reauthorization of Permits, Maintenance, and Vegetation Management on Western Area Power Administration Transmission Lines on Forest Service Lands, Colorado, Nebraska, and Utah  

Broader source: Energy.gov [DOE]

This EIS is being prepared jointly by DOE’s Western Area Power Administration and the U.S. Forest Service. The EIS evaluates the potential environmental impacts of Western’s proposed changes to vegetation management along its transmission line rights-of-way on National Forest System lands in Colorado, Utah, and Nebraska.

253

Study on reduction in electric field, charged voltage, ion current and ion density under HVDC transmission lines by parallel shield wires  

SciTech Connect (OSTI)

An important problem in the design and operation of HVDC transmission lines is to reduce electrical field effects such as ion flow electrification of objects, electric field, ion current and ion density at ground level in the vicinity of HVDC lines. Several models of shield wire were tested with the Shiobara HVDC test line. The models contain typical stranded wires that are generally used to reduce field effects at ground level, neutral conductors placed at lower parts of the DC line, and an ''earth corona model'' to cancel positive or negative ions intentionally by generating ions having opposite polarity to ions flowing into the wire. This report describes the experimental results of the effects of these shield wires and a method to predict shielding effects.

Amano, Y.; Sunaga, Y.

1989-04-01T23:59:59.000Z

254

TRIBAND BRANCH LINE COUPLER USING DOUBLE-LORENTZ  

E-Print Network [OSTI]

TRIBAND BRANCH LINE COUPLER USING DOUBLE-LORENTZ TRANSMISSION LINES Hanseung Lee and Sangwook Nam) transmission lines (TL) provides two additional degrees of freedom in realizing triband microwave devices-Lorentz; transmission lines; triband; directional couplers 1. INTRODUCTION The concept of artificial TLs having

Nam, Sangwook

255

Author's Copy: J.B. Bancroft, A. Morrison, G. Lachapelle, Validation of GNSS under 500,000 V Direct Current (DC) transmission lines, Computers and Electronics in Agriculture, Volume 83, April 2012, Pages 58-67, ISSN 0168-1699, 10.1016/j.compag.2012.01.013  

E-Print Network [OSTI]

masking by the towers. Tests were conducted under a set of three transmission lines, two 500 kV DC lines Current (DC) transmission lines, Computers and Electronics in Agriculture, Volume 83, April 2012, Pages 58 Validation of GNSS under 500,000 Volt Direct Current (DC) Transmission Lines J.B. Bancroft*, A. Morrison

Calgary, University of

256

EA-2002: Right-of-Way Application for the Tucson-Apache 115-kV Transmission Line, Pima County, Arizona  

Broader source: Energy.gov [DOE]

Western Area Power Administration (Western) and the Bureau of Indian Affairs (BIA), as joint lead agencies, are preparing an EA that will evaluate the potential environmental impacts of a proposal for BIA to grant Western a 150-foot right-of-way across tribal land along the existing Tucson-Apache Transmission Line to replace the previous 100-foot right-of-way, which has expired.

257

EA-1899: Rerouting and Renovating of Estes-Flatiron Three Transmission Lines to Double Circuit 115-kV, Larimer County, Colorado  

Broader source: Energy.gov [DOE]

DOE’s Western Area Power Administration started to prepare an EA to evaluate the environmental impacts of a proposal to reroute and renovate the Estes-Flatiron Three Transmission Lines in Larimer County, Colorado. Based on comments received during the scoping period, Western ended preparation of DOE/EA-1899 and announced its intent to prepare and environmental impact statement, DOE/EIS-0483.

258

Geodesic Lines, . . . Covariant . . .  

E-Print Network [OSTI]

Geodesic Lines, . . . Covariant . . . Home Page Title Page Page 781 of 818 Go Back Full Screen Close Quit 14.11. Geodesic Lines, Local Gauss-Bonnet Theorem Geodesics play a very important role in surface theory and in dynamics. One of the main reasons why geodesics are so important

Gallier, Jean

259

Intrinsic AGN Absorption Lines  

E-Print Network [OSTI]

Strong absorption lines are common in rest-frame UV spectra of AGNs due to a variety of resonant transitions, for example the HI Lyman series lines (most notably Ly-alpha 1216) and high-ionization doublets like CIV 1549,1551. The lines are called ``intrinsic'' if the absorbing gas is physically related to the AGN, e.g. if the absorber resides broadly within the radius of the AGN's surrounding ``host'' galaxy. Intrinsic absorption lines are thus valuable probes of the kinematics, physical conditions and elemental abundances in the gas near AGNs. Studies of intrinsic absorbers have historically emphasized the broad absorption lines (BALs) in quasars. Today we recognize a wider variety of intrinsic lines in a wider range of objects. For example, we now know that Seyfert 1 galaxies (the less luminous cousins of quasars) have intrinsic absorption. We also realize that intrinsic lines can form in a range of AGN environments --- from the dynamic inner regions like the BALs, to the more quiescent outer host galaxies >10 kpc away. This article provides a brief introduction to current observational and theoretical work on intrinsic AGN absorbers.

Fred Hamann

2000-06-12T23:59:59.000Z

260

Environmental Assessment and Finding of No Significant Impact: Western's Hoover Dam Bypass Project Phase II (Double-Circuiting a Portion of the Hoover-Mead No.5 and No.7 230-kV Transmission Lines with the Henderson-Mead No.1 230-kV Transmission Line, Clark County, Nevada)  

SciTech Connect (OSTI)

The U.S. Highway 93 (U.S. 93) Hoover Dam Bypass Project calls for the U.S. Department of Energy (DOE) Western Area Power Administration (Western) to remove its Arizona and Nevada (A&N) Switchyard. As a result of this action, Western must reconfigure its existing electrical transmission system in the Hoover Dam area. Western proposes to double-circuit a portion of the Hoover-Mead No.5 and No.7 230-kV Transmission Lines with the Henderson-Mead No.1 Transmission Line (see Figure 1-1). Double-circuiting is the placement of two separate electrical circuits, typically in the form of three separate conductors or bundles of conductors, on the same set of transmission line structures. The old Henderson-Hoover 230-kV Transmission Line would become the new Henderson-Mead No.1 and would extend approximately eight miles to connect with the Mead Substation. Western owns, operates, and maintains the Hoover-Mead No.5 and No.7, and Henderson-Hoover electrical power transmission lines. Additionally, approximately 0.25 miles of new right-of-way (ROW) would be needed for the Henderson-Mead No.1 when it transfers from double-circuiting with the Hoover-Mead No.7 to the Hoover-Mead No.5 at the Boulder City Tap. The proposed project would also involve a new transmission line ROW and structures where the Henderson-Mead No.1 will split from the Hoover-Mead No.5 and enter the northeast corner of the Mead Substation. Lastly, Western has proposed adding fiber optic overhead ground wire from the Hoover Power Plant to the Mead Substation on to the Henderson-Mead No.1, Hoover-Mead No.5 and No.7 Transmission Lines. The proposed project includes replacing existing transmission line tower structures, installing new structures, and adding new electrical conductors and fiber optic cables. As a consequence of these activities, ground disturbance may result from grading areas for structure placement, constructing new roads, improving existing roads for vehicle and equipment access, and from installing structures, conductors, and fiber optic cables. Project construction activities would be conducted within the existing 200-foot transmission line ROW and 50-foot access road ROW, although new spur access roads could occur outside of existing ROWs. As lead Federal agency for this action under National Environmental Policy Act (NEPA), Western must ensure that adverse environmental effects on Federal and non-Federal lands and resources are avoided or minimized. This Environmental Assessment (EA) is intended to be a concise public document that assesses the probable and known impacts to the environment from Western's Proposed Action and alternatives, and reaches a conclusion about the significance of the impacts. This EA was prepared in compliance with NEPA regulations published by the Council on Environmental Quality (40 CFR 1500-1508) and implementing procedures of the Department of Energy (10 CFR 1021).

N /A

2003-10-27T23:59:59.000Z

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


261

Bipolar pulse forming line  

DOE Patents [OSTI]

A bipolar pulse forming transmission line module for linear induction accelerators having first, second, third, fourth, and fifth planar conductors which form an interleaved stack with dielectric layers between the conductors. Each conductor has a first end, and a second end adjacent an acceleration axis. The first and second planar conductors are connected to each other at the second ends, the fourth and fifth planar conductors are connected to each other at the second ends, and the first and fifth planar conductors are connected to each other at the first ends via a shorting plate adjacent the first ends. The third planar conductor is electrically connectable to a high voltage source, and an internal switch functions to short a high voltage from the first end of the third planar conductor to the first end of the fourth planar conductor to produce a bipolar pulse at the acceleration axis with a zero net time integral. Improved access to the switch is enabled by an aperture through the shorting plate and the proximity of the aperture to the switch.

Rhodes, Mark A. (Pleasanton, CA)

2008-10-21T23:59:59.000Z

262

Holes in Spectral Lines  

E-Print Network [OSTI]

The decay of an atom in the presence of a static perturbation is investigated. The perturbation couples a decaying state with a nondecaying state. A "hole" appears in the emission line at a frequency equal to the frequency ...

Fontana, Peter R.; Srivastava, Rajendra P.

1973-06-01T23:59:59.000Z

263

Line Extension Alternatives  

Broader source: Energy.gov [DOE]

The Public Service Board (PSB) of Vermont developed rules regarding utility line extension requests. While the majority of the rules focus on the procedure followed (and associated fees) for the...

264

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.

265

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)

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.

Not Available

1992-04-01T23:59:59.000Z

266

Analogue Hawking Radiation in a dc-SQUID Array Transmission Line P. D. Nation,1,* M. P. Blencowe,1  

E-Print Network [OSTI]

) where cs is the speed of sound and vðr� is the spatially varying velocity of the fluid. For a sound wave system was first sug- gested by Unruh who uncovered the analogy between sound waves in a fluid been proposed using Bose- Einstein condensates [4], liquid Helium [5], electromag- netic transmission

Buks, Eyal

267

Heavy duty insulator assemblies for 500-kV bulk power transmission line with large diameter octagonalbundled conductor  

SciTech Connect (OSTI)

This paper describes the design procedure and the results of field tests on mechanical performances of insulator assemblies newly developed to support octagonal-bundled conductors for 500-kV bulk power transmission. Taking account of conductor-motion-induced peak tensile load, fatigue, torsional torque and others, a successful design has been achieved in two prototype assemblies for such heavy mechanical duties as encountered during conductor galloping or swing. This has been proved throughout three years of the field tests.

Tsujimoto, K.; Hayase, I.; Hirai, J.; Inove, M.; Naito, K.; Yukino, T.

1982-11-01T23:59:59.000Z

268

Proposed Project: Plains & Eastern Clean Line | Department of...  

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

the Department of Energy published in the Federal Register a Request for Proposals (RFP) for New or Upgraded Transmission Line Projects Under Section 1222 of the Energy Policy...

269

Utility Lines and Facilities (Montana)  

Broader source: Energy.gov [DOE]

These regulations apply to the construction of utility and power lines and facilities. They address the use of public right-of-ways for such construction, underground power lines, and construction...

270

Coronal emission lines as thermometers  

E-Print Network [OSTI]

Coronal emission line intensities are commonly used to measure electron temperatures using emission measure and/or line ratio methods. In the presence of systematic errors in atomic excitation calculations and data noise, the information on underlying temperature distributions is fundamentally limited. Increasing the number of emission lines used does not necessarily improve the ability to discriminate between different kinds of temperature distributions.

Judge, Philip G

2009-01-01T23:59:59.000Z

271

Recyclable transmission line (RTL) and linear transformer driver (LTD) development for Z-pinch inertial fusion energy (Z-IFE) and high yield.  

SciTech Connect (OSTI)

Z-Pinch Inertial Fusion Energy (Z-IFE) complements and extends the single-shot z-pinch fusion program on Z to a repetitive, high-yield, power plant scenario that can be used for the production of electricity, transmutation of nuclear waste, and hydrogen production, all with no CO{sub 2} production and no long-lived radioactive nuclear waste. The Z-IFE concept uses a Linear Transformer Driver (LTD) accelerator, and a Recyclable Transmission Line (RTL) to connect the LTD driver to a high-yield fusion target inside a thick-liquid-wall power plant chamber. Results of RTL and LTD research are reported here, that include: (1) The key physics issues for RTLs involve the power flow at the high linear current densities that occur near the target (up to 5 MA/cm). These issues include surface heating, melting, ablation, plasma formation, electron flow, magnetic insulation, conductivity changes, magnetic field diffusion changes, possible ion flow, and RTL mass motion. These issues are studied theoretically, computationally (with the ALEGRA and LSP codes), and will work at 5 MA/cm or higher, with anode-cathode gaps as small as 2 mm. (2) An RTL misalignment sensitivity study has been performed using a 3D circuit model. Results show very small load current variations for significant RTL misalignments. (3) The key structural issues for RTLs involve optimizing the RTL strength (varying shape, ribs, etc.) while minimizing the RTL mass. Optimization studies show RTL mass reductions by factors of three or more. (4) Fabrication and pressure testing of Z-PoP (Proof-of-Principle) size RTLs are successfully reported here. (5) Modeling of the effect of initial RTL imperfections on the buckling pressure has been performed. Results show that the curved RTL offers a much greater buckling pressure as well as less sensitivity to imperfections than three other RTL designs. (6) Repetitive operation of a 0.5 MA, 100 kV, 100 ns, LTD cavity with gas purging between shots and automated operation is demonstrated at the SNL Z-IFE LTD laboratory with rep-rates up to 10.3 seconds between shots (this is essentially at the goal of 10 seconds for Z-IFE). (7) A single LTD switch at Tomsk was fired repetitively every 12 seconds for 36,000 shots with no failures. (8) Five 1.0 MA, 100 kV, 100 ns, LTD cavities have been combined into a voltage adder configuration with a test load to successfully study the system operation. (9) The combination of multiple LTD coaxial lines into a tri-plate transmission line is examined. The 3D Quicksilver code is used to study the electron flow losses produced near the magnetic nulls that occur where coax LTD lines are added together. (10) Circuit model codes are used to model the complete power flow circuit with an inductive isolator cavity. (11) LTD architectures are presented for drivers for Z-IFE and high yield. A 60 MA LTD driver and a 90 MA LTD driver are proposed. Present results from all of these power flow studies validate the whole LTD/RTL concept for single-shot ICF high yield, and for repetitive-shot IFE.

Sharpe, Robin Arthur; Kingsep, Alexander S. (Kurchatov Institute, Moscow, Russia); Smith, David Lewis; Olson, Craig Lee; Ottinger, Paul F. (Naval Research Laboratory, Washington, DC); Schumer, Joseph Wade (Naval Research Laboratory, Washington, DC); Welch, Dale Robert (Voss Scientific, Albuquerque, NM); Kim, Alexander (High Currents Institute, Tomsk, Russia); Kulcinski, Gerald L. (University of Wisconsin, Madison, WI); Kammer, Daniel C. (University of Wisconsin, Madison, WI); Rose, David Vincent (Voss Scientific, Albuquerque, NM); Nedoseev, Sergei L. (Kurchatov Institute, Moscow, Russia); Pointon, Timothy David; Smirnov, Valentin P. (Kurchatov Institute, Moscow, Russia); Turgeon, Matthew C.; Kalinin, Yuri G. (Kurchatov Institute, Moscow, Russia); Bruner, Nichelle "Nicki" (Voss Scientific, Albuquerque, NM); Barkey, Mark E. (University of Alabama, Tuscaloosa, AL); Guthrie, Michael (University of Wisconsin, Madison, WI); Thoma, Carsten (Voss Scientific, Albuquerque, NM); Genoni, Tom C. (Voss Scientific, Albuquerque, NM); Langston, William L.; Fowler, William E.; Mazarakis, Michael Gerrassimos

2007-01-01T23:59:59.000Z

272

Unsplit bipolar pulse forming line  

DOE Patents [OSTI]

A bipolar pulse forming transmission line module and system for linear induction accelerators having first, second, third, and fourth planar conductors which form a sequentially arranged interleaved stack having opposing first and second ends, with dielectric layers between the conductors. The first and second planar conductors are connected to each other at the first end, and the first and fourth planar conductors are connected to each other at the second end via a shorting plate. The third planar conductor is electrically connectable to a high voltage source, and an internal switch functions to short at the first end a high voltage from the third planar conductor to the fourth planar conductor to produce a bipolar pulse at the acceleration axis with a zero net time integral. Improved access to the switch is enabled by an aperture through the shorting plate and the proximity of the aperture to the switch.

Rhodes, Mark A. (Pleasanton, CA)

2011-05-24T23:59:59.000Z

273

Living and Working Safely Around High-Voltage Power Lines.  

SciTech Connect (OSTI)

High-voltage transmission lines can be just as safe as the electrical wiring in the homes--or just as dangerous. The crucial factor is ourselves: they must learn to behave safely around them. This booklet is a basic safety guide for those who live and work around power lines. It deals primarily with nuisance shocks due to induced voltages, and with potential electric shock hazards from contact with high-voltage lines. References on possible long-term biological effects of transmission lines are shown. In preparing this booklet, the Bonneville Power Administration has drawn on more than 50 years of experience with high-voltage transmission. BPA operates one of the world`s largest networks of long-distance, high-voltage lines. This system has more than 400 substations and about 15,000 miles of transmission lines, almost 4,400 miles of which are operated at 500,000 volts.

United States. Bonneville Power Administration.

2001-06-01T23:59:59.000Z

274

Lumped transmission line avalanche pulser  

DOE Patents [OSTI]

A lumped linear avalanche transistor pulse generator utilizes stacked transistors in parallel within a stage and couples a plurality of said stages, in series with increasing zener diode limited voltages per stage and decreasing balanced capacitance load per stage to yield a high voltage, high and constant current, very short pulse. 8 figs.

Booth, R.

1995-07-18T23:59:59.000Z

275

Lumped transmission line avalanche pulser  

DOE Patents [OSTI]

A lumped linear avalanche transistor pulse generator utilizes stacked transistors in parallel within a stage and couples a plurality of said stages, in series with increasing zener diode limited voltages per stage and decreasing balanced capacitance load per stage to yield a high voltage, high and constant current, very short pulse.

Booth, Rex (Livermore, CA)

1995-01-01T23:59:59.000Z

276

NETL LINES OF DEMARCATION 09282012  

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

LINES OF DEMARCATION September 28, 2012 Contact: Site Operations Division or ESS&H Division with Questions The oversight, upkeep, and segregation of NETL infrastructure components,...

277

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)

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.

NONE

1993-10-01T23:59:59.000Z

278

Microsoft Word - Broadband Over Power Lines_FINAL.06.01.10.doc  

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

Broadband over Powerlines Can Accelerate the Transmission Smart Grid May 25, 2010 DOENETL-20101418 Broadband Over Power Lines Could Accelerate the Transmission Smart Grid...

279

Early-Time Behavior of the Ground Transient Resistance of Overhead Lines  

E-Print Network [OSTI]

contribution to the transient response of overhead transmission lines. While the late-time behaviour. This expression can be used for the transient analysis of transmission lines in a computationally efficient way of overhead transmission lines to external disturbances like lightning discharges [1, 2]. This impedance

Loyka, Sergey

280

Analysis of interconnect microstrip lines  

E-Print Network [OSTI]

of the return loss of the slot-coupled microstrip dipole. Section C presents two simulations of the return loss on the slot- coupled rectangular patch antenna. A. Interconnect of Microstrip Lines Several circuits with the geometry of Figure 1 were fabricated.... Experimental and Theoretical Results of the Interconnect Two circuits were designed and fabricated. Each circuit consists of two substrates as shown in Figure 9. One substrate has an open microstrip line etched in one side and an aperture etched...

Luong, Giam-Minh

1992-01-01T23:59:59.000Z

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


281

Fin-line horn antenna  

DOE Patents [OSTI]

A fin line circuit card containing a fin line slot feeds a dipole antenna ich extends a quarterwave outside the waveguide and provides an energy beam focal point at or near the open end of the waveguide. The dipole antenna thus maintains a wide and nearly constant beamwidth, low VSWR and a circular symmetric radiation pattern for use in electronic warfare direction finding and surveillance applications.

Reindel, John (San Diego, CA)

1990-01-01T23:59:59.000Z

282

The millimeter-wave properties of superconducting microstrip lines  

E-Print Network [OSTI]

The millimeter-wave properties of superconducting microstrip lines A. Vayonakis£, C. Luo , H of the millimeter-wave properties of superconducting thin-film microstrip transmission lines. Our exper- imental, with a temperature-independent loss tangent of 5 3 ¦0 5 ¢10 3 for our samples. INTRODUCTION Superconducting

283

What can emission lines tell us?  

E-Print Network [OSTI]

1 Generalities 2 Empirical diagnostics based on emission lines 3 Photoionization modelling 4 Pending questions 5 Appendix: Lists of useful lines and how to deal with them

G. Stasinska

2007-04-03T23:59:59.000Z

284

Objective determination of optimal power line designs.  

E-Print Network [OSTI]

??Includes abstract. The thesis investigated the possibility of overhead power line designs being decided by using an objective rather thana subjective method. Power lines are… (more)

Stephen, Robert G.

2010-01-01T23:59:59.000Z

285

Quasistellar Objects: Intervening Absorption Lines  

E-Print Network [OSTI]

We briefly review, at a level appropriate for graduate students and non-specialists, the field of quasar absorption lines (QALs). Emphasis is on the intervening absorbers. We present the anatomy of a quasar spectrum due to various classes of intervening absorption systems, and a brief historical review of each absorber class (Lyman-alpha forest and Lyman limit systems, and metal-line and damped Lyman-alpha absorbers). We also provide several heuristic examples on how the physical properties of both the intergalactic medium and the gaseous environments associated with earlier epoch galaxies can be inferred from QALs. The evolution of these environments from z=4 are discussed.

Jane C. Charlton; Christopher W. Churchill

2000-05-31T23:59:59.000Z

286

Low energy beam line at the AGOR facility  

SciTech Connect (OSTI)

The origin of the low transmission through the low energy beam line between the electron cyclotron resonance source and the AGOR cyclotron has been investigated. Measurements of beam size and emittance, determined with the ''varying quadrupole method,'' are compared with calculations including fringe fields up to third order with the code COSY INFINITY. Calculations and measurements qualitatively agree; the calculations exhibit the large beam losses observed. On the basis of the calculations new settings have been determined, resulting in a significant increase of the transmission. To achieve full transmission a complete redesign of the beam line, in particular of the bending magnets, is needed.

Toprek, Dragan; Formanoy, Iwo; Brandenburg, Sytze [VINCA Institute of Nuclear Sciences, Laboratory for Nuclear and Plasma Physics, B.O. Box 522, 11001 Belgrade (Serbia and Montenegro); Kernfysisch Versneller Instituut (KVI), Zernikelaan 25, 9747 AA, Groningen (Netherlands)

2005-01-01T23:59:59.000Z

287

The MICE Muon Beam Line  

SciTech Connect (OSTI)

In the Muon Ionization Cooling Experiment (MICE) at RAL, muons are produced and transported in a dedicated beam line connecting the production point (target) to the cooling channel. We discuss the main features of the beamline, meant to provide muons with momenta between 140 MeV/c and 240 MeV/c and emittances up to 10 mm rad, which is accomplished by means of a diffuser. Matching procedures to the MICE cooling channel are also described. In summer 2010 we performed an intense data taking campaign to finalize the calibration of the MICE Particle Identification (PID) detectors and the understanding of the beam line, which completes the STEPI phase of MICE. We highlight the main results from these data.

Apollonio, Marco [High Energy Physics Group, Department of Physics, Imperial College London SW7 2AZ (United Kingdom)

2011-10-06T23:59:59.000Z

288

In-line thermoelectric module  

DOE Patents [OSTI]

A thermoelectric module with a plurality of electricity generating units each having a first end and a second end, the units being arranged first end to second end along an in-line axis. Each unit includes first and second elements each made of a thermoelectric material, an electrically conductive hot member arranged to heat one side of the first element, and an electrically conductive cold member arranged to cool another side of the first element and to cool one side of the second element. The hot member, the first element, the cold member and the second element are supported in a fixture, are electrically connected respectively to provide an electricity generating unit, and are arranged respectively in positions along the in-line axis. The individual components of each generating unit and the respective generating units are clamped in their in-line positions by a loading bolt at one end of the fixture and a stop wall at the other end of the fixture. The hot members may have a T-shape and the cold members an hourglass shape to facilitate heat transfer. The direction of heat transfer through the hot members may be perpendicular to the direction of heat transfer through the cold members, and both of these heat transfer directions may be perpendicular to the direction of current flow through the module.

Pento, Robert (Algonquin, IL); Marks, James E. (Glenville, NY); Staffanson, Clifford D. (S. Glens Falls, NY)

2000-01-01T23:59:59.000Z

289

In-Line Thermoelectric Module  

SciTech Connect (OSTI)

A thermoelectric module with a plurality of electricity generating units each having a first end and a second end, the units being arranged first end to second end along an-in-line axis. Each unit includes first and second elements each made of a thermoelectric material, an electrically conductive hot member arranged to heat one side of the first element, and an electrically conductive cold member arranged to cool another side of the first element and to cool one side of the second element. The hot member, the first element, the cold member and the second element are supported in a fixture, are electrically connected respectively to provide an electricity generating unit, and are arranged respectively in positions along the in-line axis. The individual components of each generating unit and the respective generating units are clamped in their in-line positions by a loading bolt at one end of the fixture and a stop wall at the other end of the fixture. The hot members may have a T-shape and the cold members an hourglass shape to facilitate heat transfer. The direction of heat transfer through the hot members may be perpendicular to the direction of heat transfer through the cold members, and both of these heat transfer directions maybe perpendicular to the direction-of current flow through the module.

Pento, Robert; Marks, James E.; Staffanson, Clifford D.

1998-07-28T23:59:59.000Z

290

Power Line Communications: An Overview Part II Muhammad Salman Yousuf 1  

E-Print Network [OSTI]

) \\in the frequency range of 50-60 Hz. It is a fact that power transmission towers and lines are some

Rizvi, Syed Z.

291

Mud return line connector apparatus  

SciTech Connect (OSTI)

The preferred and illustrated embodiment is a connector adapted to be joined above a blowout preventer and below the rotary table of a drilling rig. It collects the annular flow of returned drilling mud and directs mud to an incorporated, radially directed connective nipple. It enables the blowout preventer to be adjusted in location relative to the drilling rig and further accommodates a variable level of drilling mud in the annular space. The radial nipple connects with a mud line extending at some radial direction with a slope causing the mud to flow by gravity from the annular space to remote located mud tanks.

Ward, B.N.

1981-07-07T23:59:59.000Z

292

Chromospheric Dynamics and Line Formation  

E-Print Network [OSTI]

The solar chromosphere is very dynamic, due to the presence of large amplitude hydrodynamic waves. Their propagation is affected by NLTE radiative transport in strong spectral lines, which can in turn be used to diagnose the dynamics of the chromosphere. We give a basic introduction into the equations of NLTE radiation hydrodynamics and describe how they are solved in current numerical simulations. The comparison with observation shows that one-dimensional codes can describe strong brightenings quite well, but the overall chromospheric dynamics appears to be governed by three-dimensional shock propagation.

R. Hammer; P. Ulmschneider

2007-07-14T23:59:59.000Z

293

SPEAR3 Beam Line Availability  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0 ResourceAwards SAGE Awards ,#2446Smalln n u a l rBeam Line

294

Capillary electrophoresis-fluorescence line narrowing system (CE-FLNS) for on-line structural characterization  

DOE Patents [OSTI]

Capillary electrophoresis (CE) is interfaced with low temperature fluorescence line-narrowing (FLN) spectroscopy for on-line structural characterization of separated molecular analytes. 21 figs.

Jankowiak, R.J.; Small, G.J.; Shields, P.A.

1999-04-27T23:59:59.000Z

295

Dynamic Line Rating Oncor Electric Delivery Smart Grid Program  

SciTech Connect (OSTI)

Electric transmission lines are the lifeline of the electric utility industry, delivering its product from source to consumer. This critical infrastructure is often constrained such that there is inadequate capacity on existing transmission lines to efficiently deliver the power to meet demand in certain areas or to transport energy from high-generation areas to high-consumption regions. When this happens, the cost of the energy rises; more costly sources of power are used to meet the demand or the system operates less reliably. These economic impacts are known as congestion, and they can amount to substantial dollars for any time frame of reference: hour, day or year. There are several solutions to the transmission constraint problem, including: construction of new generation, construction of new transmission facilities, rebuilding and reconductoring of existing transmission assets, and Dynamic Line Rating (DLR). All of these options except DLR are capital intensive, have long lead times and often experience strong public and regulatory opposition. The Smart Grid Demonstration Program (SGDP) project co-funded by the Department of Energy (DOE) and Oncor Electric Delivery Company developed and deployed the most extensive and advanced DLR installation to demonstrate that DLR technology is capable of resolving many transmission capacity constraint problems with a system that is reliable, safe and very cost competitive. The SGDP DLR deployment is the first application of DLR technology to feed transmission line real-time dynamic ratings directly into the system operation’s State Estimator and load dispatch program, which optimizes the matching of generation with load demand on a security, reliability and economic basis. The integrated Dynamic Line Rating (iDLR)1 collects transmission line parameters at remote locations on the lines, calculates the real-time line rating based on the equivalent conductor temperature, ambient temperature and influence of wind and solar radiation on the stringing section, transmits the data to the Transmission Energy Management System, validates its integrity and passes it on to Oncor and ERCOT (Electric Reliability Council of Texas) respective system operations. The iDLR system is automatic and transparent to ERCOT System Operations, i.e., it operates in parallel with all other system status telemetry collected through Supervisory Control and Data Acquisition (SCADA) employed across the company.

Johnson, Justin; Smith, Cale; Young, Mike; Donohoo, Ken; Owen, Ross; Clark, Eddit; Espejo, Raul; Aivaliotis, Sandy; Stelmak, Ron; Mohr, Ron; Barba, Cristian; Gonzalez, Guillermo; Malkin, Stuart; Dimitrova, Vessela; Ragsdale, Gary; Mitchem, Sean; Jeirath, Nakul; Loomis, Joe; Trevino, Gerardo; Syracuse, Steve; Hurst, Neil; Mereness, Matt; Johnson, Chad; Bivens, Carrie

2013-05-04T23:59:59.000Z

296

Line Management Perspective: National Nuclear Security Administration...  

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

National Nuclear Security Administration (NNSA) Line Management Perspective: National Nuclear Security Administration (NNSA) Addthis Description Slide Presentation by Jim...

297

Title Line 2 Commercialization at the  

E-Print Network [OSTI]

-exclusive or exclusive license (royalty free or royalty bearing) ­ Researchers sign acknowledgment #12;Title Title Line 2

Czarnecki, Krzysztof

298

Refractory Lining Material Improves Gasifer Performance  

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

water GASIFICATION CHAMBER the ENERGY lab NATIONAL ENERGY TECHNOLOGY LABORATORY Technology Transfer Refractory Lining Material Improves Gasifier Performance Award Winning...

299

Methods of Using Existing Wire Lines (power lines, phone lines, internet lines) for Totally Secure Classical Communication Utilizing Kirchoff's Law and Johnson-like Noise  

E-Print Network [OSTI]

We outline some general solutions to use already existing and currently used wire lines, such as power lines, phone lines, internet lines, etc, for the unconditionally secure communication method based on Kirchoff's Law and Johnson-like Noise (KLJN). Two different methods are shown. One is based on filters used at single wires and the other one utilizes a common mode voltage superimposed on a three-phase powerline.

Laszlo B. Kish

2006-10-02T23:59:59.000Z

300

Plains and Eastern Clean Line Transmission Line: Federal Register Notice,  

Office of Environmental Management (EM)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power.pdf11-161-LNG |September 15, 2010Energy6 Frontera STAT.PaulThe 2014PinellasPioneeringVolume

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


301

Plains & Eastern Clean Line Transmission Line - Part 2 Application:  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Careerlumens_placard-green.epsEnergy1.pdfMarket |21, 2015 7:00AM to 10:30AM EDT Tuition

302

Plains and Eastern Clean Line Transmission Line: Comments from Ms.  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Careerlumens_placard-green.epsEnergy1.pdfMarket |21, 2015 7:00AM to 10:30AM EDT

303

Proposed Project: Plains & Eastern Clean Line Transmission Line |  

Office of Environmental Management (EM)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power.pdf11-161-LNG |September 15,2015 | Department ofThatGrid3 ProgramIDPromotingNo.

304

Plains & Eastern Clean Line Transmission Line - Part 2 Application |  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' Research | Department ofpermitPerformance Audit of thePeterDepartment ofInDepartment

305

Gamma-Ray Burst Lines  

E-Print Network [OSTI]

The evidence for spectral features in gamma-ray bursts is summarized. As a guide for evaluating the evidence, the properties of gamma-ray detectors and the methods of analyzing gamma-ray spectra are reviewed. In the 1980's, observations indicated that absorption features below 100 keV were present in a large fraction of bright gamma-ray bursts. There were also reports of emission features around 400 keV. During the 1990's the situation has become much less clear. A small fraction of bursts observed with BATSE have statistically significant low-energy features, but the reality of the features is suspect because in several cases the data of the BATSE detectors appear to be inconsistent. Furthermore, most of the possible features appear in emission rather than the expected absorption. Analysis of data from other instruments has either not been finalized or has not detected lines.

Michael S. Briggs

1999-10-20T23:59:59.000Z

306

Flexible Transmission in the Smart Grid  

E-Print Network [OSTI]

Planning . 102 vi Transmission Line Maintenance Scheduling 103 Just-in-time Transmission 103 Flexible Transmission in the Smart Grid

Hedman, Kory Walter

2010-01-01T23:59:59.000Z

307

Gamma-Ray Line Observations with RHESSI  

E-Print Network [OSTI]

The Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) has been observing gamma-ray lines from the Sun and the Galaxy since its launch in February 2002. Here I summarize the status of RHESSI observations of solar lines (nuclear de-excitation, neutron capture, and positron annihilation), the lines of $^{26}$Al and $^{60}$Fe from the inner Galaxy, and the search for positron annihilation in novae.

David M. Smith

2004-04-30T23:59:59.000Z

308

Emergency Management Lines of Inquiry, April 2008  

Energy Savers [EERE]

Lines of Inquiry plansprotocols, interview facility managers and responders, and conduct facility walkdowns, as necessary. In : ment s and responsibilities for program...

309

DOE Sustainability Reporting Open Line Help Call  

Broader source: Energy.gov [DOE]

The Sustainability Performance Office (SPO) sponsors open line help calls to assist DOE sites and national laboratories with the annual sustainability reporting process. Representatives from the...

310

On the Velocity and Intensity Line Asymmetries  

E-Print Network [OSTI]

We show that, if solar 5 min. oscillations are excited by convection in the upper layers of the convective envelope, it is impossible to explain the opposite line asymmetries observed in the velocity and intensity spectra with assumptions on the dissipations which reduce the problem to a second order one. The interpretation of that observation requires to solve the full non-adiabatic problem which is of the fourth or sixth order. We also analyze the causes of line asymmetries in the frame of the general problem and we show that to locate the source, it is better to study line asymmetries not too far from line centers.

M. Gabriel

1997-10-01T23:59:59.000Z

311

Asiakastyytyväisyystutkimus Sun Lines Oy:n tilausristeilyistä.  

E-Print Network [OSTI]

??Tämän tutkimuksellisen opinnäytetyön tarkoituksena on toteuttaa asiakastyytyväisyystutkimus Helsingin saaristossa risteilyliikennettä harjoittavan Sun Lines Oy:n tilausristeilyistä. Vuonna 1956 toimintansa aloittaneen perheyrityksen toimintaan kuuluvat tilausristeilyjen ohella linjaliikenne… (more)

Mattila, Outi

2010-01-01T23:59:59.000Z

312

North American Short Line and Regional Railroads Industry Report  

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

45G Short Line Tax Credit 45G Short Line Tax Credit government owned short lines government owned short lines State grants State grants D.O.E. investment D.O.E. investment...

313

Type B Accident Investigation Board Report on the July 25, 1997, Contract Brush Cutter Injury on the Ashe-Marion #2 500 kV Line  

Broader source: Energy.gov [DOE]

On July 25, 1997, at 1205 hours, a contract hand brush cutter was seriously injured when he felled a tree close to a Bonneville Power Administration energized transmission power line, located within a BPA transmission-line corridor.

314

xDSL line driver design  

E-Print Network [OSTI]

xDSL line driver is a very important element in xDSL systems. This thesis proposes a three stage xDSL line driver solution based on a multipath feedforward compensation principle. TSMC 0.8 micro meter high voltage BiCMOS technology is used as a...

Zhang, Xiaoyong

2001-01-01T23:59:59.000Z

315

results and benefits... The Bittern Line Carbon  

E-Print Network [OSTI]

results and benefits... The Bittern Line Carbon Neutral Stations Transport Regeneration Ltd. June 2008 c a s e s t u d yCRed carbon reduction Project Summary Our client, Transport Regeneration Ltd., aims to make nine stations on the Bittern Line between Norwich and Sheringham carbon neutral

Everest, Graham R

316

LA NACION LINE Ciencia/Salud  

E-Print Network [OSTI]

LA NACION LINE Ciencia/Salud Viernes 4 de Abril de 2003 LA NACION LINE | Ed. Anteriores | 4 de Abril de 2003 | Ciencia/Salud | Nota Estudio del Museo Egidio Feruglio, de Trelew La diversidad vegetal://www.lanacion.com.ar/03/04/04/sl_486019.asp LA NACION | 04/04/2003 | Página 14 | Ciencia/Salud Volver a ediciones

Wilf, Peter

317

Dynamic simulation of polyester mooring lines  

E-Print Network [OSTI]

A numerical scheme, known as CABLE3D, originally developed for the simulation of dynamics of steel chain-wire mooring lines is extended to allow for the large elongation in a mooring line, the dependence of the modulus on tension, and energy...

Kim, Min Suk

2004-09-30T23:59:59.000Z

318

Line geometry and electromagnetism I: basic structures  

E-Print Network [OSTI]

Some key notions of line geometry are recalled, along with their application to mechanics. It is then shown that most of the basic structures that one introduces in the pre-metric formulation of electromagnetism can be interpreted directly in terms of corresponding concepts in line geometry. The results are summarized in a table.

D. H. Delphenich

2013-09-11T23:59:59.000Z

319

Product Lines that supply other Product Lines: A Service-Oriented Approach Salvador Trujillo  

E-Print Network [OSTI]

Product Lines that supply other Product Lines: A Service-Oriented Approach Salvador Trujillo@uni-passau.de Abstract A software product line is a family of software products that share a set of core assets with the goal of reuse. In this paper, we focus on a scenario in which different products from different product

Apel, Sven

320

> REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) < 1 The Utilization of Satellite Images to Identify  

E-Print Network [OSTI]

The Utilization of Satellite Images to Identify Trees Endangering Transmission Lines Y. Kobayashi, G. G. Karady, G to determine tree interference with overhead transmission lines. Index Terms-- satellite images, tree trimming a transmission lines may inter- fere with circuit operation and may produce short cir- cuits. As a typical

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


321

Evaluation of Instrumentation and Dynamic Thermal Ratings for Overhead Lines  

SciTech Connect (OSTI)

In 2010, a project was initiated through a partnership between the Department of Energy (DOE) and the New York Power Authority (NYPA) to evaluate EPRI?s rating technology and instrumentation that can be used to monitor the thermal states of transmission lines and provide the required real-time data for real-time rating calculations. The project included the installation and maintenance of various instruments at three 230 kV line sites in northern New York. The instruments were monitored, and data collection and rating calculations were performed for about a three year period.

Phillips, A.

2013-01-31T23:59:59.000Z

322

Transmission Line MTF: Magnetized Target Fusion  

E-Print Network [OSTI]

/4 = 40 µs cusp coil cusp coil mirror coils cusp coil cap. bank mirror coil cap. bank Electrical Circuit Current vs t Experimental SetupExperimental Setup 32.5 cm 36cm Pre-ionization Experimental Setup Pre-framing photography) Quantitative diagnostics: 1. Interferometry (side-on and end-on) 2. Studying electrical pulse

323

Williston to Stateline Transmission Line Project  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and MaterialsWenjun DengWISP SignInWhoWilliston to Stateline

324

Gila to North Gila Transmission Line Rebuild  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGet Assistance GetGiant Protease TPP II'sGiantGiftGila

325

Grand Coulee Transmission Line Replacement Project  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGet AssistanceCatalytic SitesEmployee,Energy

326

Gateway West Transmission Line | 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 CenterFranconia, Virginia: Energy Resources Jump to: navigation, search Equivalent6894093° Loading69.County, North Carolina:GatewayWest

327

Big Bend-Witten Transmission Line Project  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareers Apply for a JobBernardtheBeyond(PrincetonBiddingBang or

328

Contingency Analysis of Cascading Line Outage Events  

SciTech Connect (OSTI)

As the US power systems continue to increase in size and complexity, including the growth of smart grids, larger blackouts due to cascading outages become more likely. Grid congestion is often associated with a cascading collapse leading to a major blackout. Such a collapse is characterized by a self-sustaining sequence of line outages followed by a topology breakup of the network. This paper addresses the implementation and testing of a process for N-k contingency analysis and sequential cascading outage simulation in order to identify potential cascading modes. A modeling approach described in this paper offers a unique capability to identify initiating events that may lead to cascading outages. It predicts the development of cascading events by identifying and visualizing potential cascading tiers. The proposed approach was implemented using a 328-bus simplified SERC power system network. The results of the study indicate that initiating events and possible cascading chains may be identified, ranked and visualized. This approach may be used to improve the reliability of a transmission grid and reduce its vulnerability to cascading outages.

Thomas L Baldwin; Magdy S Tawfik; Miles McQueen

2011-03-01T23:59:59.000Z

329

Africa planned gas lines will meet future demand  

SciTech Connect (OSTI)

The burgeoning European market for natural gas is expected to create major gas line construction. The potential for North Africa looks particularly promising in 1991. Italy's ENI has proposed a 6,000-km (3,728-mi) gas network in North Africa to connect gas-rich Libya and Algeria with Morocco and Mauritania, making large volumes available to the European market. According to the proposal, a gas line would run from the Sirte Basin in Libya west to Mauritania. Extending the line eastward through Egypt and on to the Arabian Peninsula would provide export access. In this paper initial studies are examine reserve projections for the next 20 years, then based on results, a transmission/distribution network will be designed, including an offshore gathering system.

Not Available

1991-11-01T23:59:59.000Z

330

Channelized voice over digital subscriber line  

E-Print Network [OSTI]

The objective of this article is to present a promising voice over digital subscriber line (VoDSL) solution: an alternative method that uses physical layer transportation to provide channelized VoDSL (CVoDSL). This article ...

Habib, A.; Saiedian, Hossein

2002-10-01T23:59:59.000Z

331

Temperatures in the blast furnace refractory lining  

SciTech Connect (OSTI)

The campaign life duration of a blast furnace is mainly determined by the condition of the refractory lining in heavy-duty zones such as the hearth, bosh, belly and lower stack. To achieve a desired lifetime, the temperature of the lining in these areas thereby proved to be the decisive controllable parameter. Low operating temperatures result in prolonged service life and are attained through high cooling efficiency. Besides the refractory grade chosen, the wear profile is mainly determined by the type of cooling system applied and the cooling intensity. Therefore, an appropriate compromise between long service life and energy losses has to be found in each case. In order to predict the service life of a lining it is important to know the wear condition at all times during the campaign. The paper describes the approaches the authors have made so far on European blast furnaces, on a theoretical and practical basis, on how to analyze the lining wear.

Hebel, R.; Streuber, C. [Didier-M and P Energietechnik GmbH, Wiesbaden (Germany); Steiger, R. [Didier-M and P Engineering Services, Highland, IN (United States); Jeschar, R. [TU Clausthal (Germany). Inst. fuer Energieverfahrenstechnik und Brennstofftechnik

1995-12-01T23:59:59.000Z

332

Ames Lab 101: Next Generation Power Lines  

SciTech Connect (OSTI)

Ames Laboratory scientist Alan Russell discusses the need to develop new power lines that are stronger and more conductive as a way to address the problem of the nation's aging and inadequate power grid.

Russell, Alan

2010-01-01T23:59:59.000Z

333

Insulate Steam Distribution and Condensate Return Lines  

SciTech Connect (OSTI)

This revised ITP tip sheet on insulating steam distribution and condensate return lines provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Not Available

2006-01-01T23:59:59.000Z

334

Line Environment, Safety and Health Oversight  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

Sets forth the Department's expectations line management environment, safety and health (ES&H) oversight and for the use of contractor self-assessment programs as the cornerstone for this oversight. Canceled by DOE O 226.1.

1997-06-26T23:59:59.000Z

335

Ames Lab 101: Next Generation Power Lines  

ScienceCinema (OSTI)

Ames Laboratory scientist Alan Russell discusses the need to develop new power lines that are stronger and more conductive as a way to address the problem of the nation's aging and inadequate power grid.

Russell, Alan

2012-08-29T23:59:59.000Z

336

IIR algorithms for adaptive line enhancement  

SciTech Connect (OSTI)

We introduce a simple IIR structure for the adaptive line enhancer. Two algorithms based on gradient-search techniques are presented for adapting the structure. Results from experiments which utilized real data as well as computer simulations are provided.

David, R.A.; Stearns, S.D.; Elliott, G.R.; Etter, D.M.

1983-01-01T23:59:59.000Z

337

Heat-Traced Fluid Transfer Lines  

E-Print Network [OSTI]

HEAT-TRACED FLUID TRANSFER LINES Robert E. Schilling, P.E. Eaton Corporation Aurora, Ohio This paper discusses basic considerations in designing a heat tracing system using either steam or electrical tracing. Four basic reasons to heat...

Schilling, R. E.

1984-01-01T23:59:59.000Z

338

What is the Broad Line Region?  

E-Print Network [OSTI]

What is the Broad Line Region (BLR) made of? What determines its location? Why is it sometimes missing? What controls its properties? Some recent results and new approaches which may shed light on these issues are briefly described.

Ari Laor

2003-12-16T23:59:59.000Z

339

Productivity Improvement of a Manual Assembly Line  

E-Print Network [OSTI]

The current project addresses the productivity improvement of a manual assembly line by making use of operations analysis in the framework of Lean production. A methodology is proposed that helps to improve the productivity of any production process...

Yerasi, Pranavi

2012-10-19T23:59:59.000Z

340

Corona losses in HVdc bipolar lines  

SciTech Connect (OSTI)

The problem related to the prediction of corona losses in HVdc bipolar lines has been solved, in the past, by means of semi-empirical monomial formulae. However, the proposed formulae that are simpler to use do not always give adequate calculation precision, while the formulae that provide the closest results require implicit functions of different complexity, which are difficult to apply; moreover, it is not possible to understand clearly what influence the variations of the different line parameters have on the losses themselves. The new monomial semi-empirical relationship, proposed to predict the corona losses in HVdc bipolar lines, is very simple to use; it highlights the dependence of power losses due to the corona effect by the different line parameters. The formula has been developed by elaborating a considerable amount of available experimental data.

Corbellini, U.; Pelacchi, P. [Univ. of Pisa (Italy). Dept. of Electric Systems and Automation] [Univ. of Pisa (Italy). Dept. of Electric Systems and Automation

1996-07-01T23:59:59.000Z

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


341

Lining Over Refractory - Conserve Energy and Capital  

E-Print Network [OSTI]

.~. LINING OVER REFRACTORY - CONSERVE ENERGY & CAPITAL by Mark L. Jost Gerald L. Barrows The Carborundum Company Niagara Falls, New York INTRODUCTION Companies operating industrial heating equip Advantages ment find themselves coming under...

Jost, M. L.; Barrows, G. L.

1980-01-01T23:59:59.000Z

342

New protection method for HVDC lines including cables  

SciTech Connect (OSTI)

For the third project of the Hokkaido-Honshu HVDC Link in Japan, called the HVDC Link III project (rated at 250 kVdc-1,200 A-300 MW), the authors developed an HVDC transmission line protection method based on a new working principle that allows high-speed and highly sensitive detection of faults, enhancing reliability in the supply of electric power. In general, increasing the sensitivity of relays will lead to an increased likelihood of undesired operation whereas lowering the sensitivity will impair the responsiveness of the relays. The proposed method meets these apparently incompatible requirements very well. Basically classified as a differential scheme, the HVDC transmission line protection method compensates for a charging and discharging current that flows through the line-to-ground capacitance at times of voltage variations caused by a line fault or by the operation of dc power systems. The developed protection method is also characterized in that it uses current changes induced by voltage variations to restrain the operation of a relay. This configuration has made the proposed method far superior in responsiveness and sensitivity to the conventional protection method. A simulation using an EMTP (Electro-Magnetic Transients Program) was conducted on this method. Developed relay equipment embodying the new protection method was subjected to various verification tests, where this equipment was connected to a power system simulator, before being delivered to the HVDC Link III facility.

Takeda, H.; Ayakawa, H.; Tsumenaga, N.; Sanpei, M.

1995-10-01T23:59:59.000Z

343

be virtually impossible to construct land lines and microwave networks in the  

E-Print Network [OSTI]

) with a microwave radio transmission tail is not suit- able for very harsh terrain, or for locations that are more. The use of microwave repeater towers, requiring line- of-sight from one tower to the next, was ruled out

Brewer, Eric A.

344

Design considerations of translmission line superconductors for fast-cycling accelerator magnets  

SciTech Connect (OSTI)

Novel design options of HTS and LTS superconductor lines for fast-cycling accelerator magnets are presented. The cryogenic power losses in using these conductors in transmission line application to energize the accelerator magnet string are discussed. A test arrangement to measure power loss of the proposed superconductor lines operating up to 2 T/s ramp rate and 0.5 Hz repetition cycle is described.

Piekarz, H.; /Fermilab

2008-07-01T23:59:59.000Z

345

New Construction of Distribution Lines, Service Lines, and Appurtenant Facilities in Residential Subdivisions (New York)  

Broader source: Energy.gov [DOE]

Any proposed construction of electricity-related facilities in residential subdivisions, including distribution and service lines and appurtenant facilities, is subject to these regulations, which...

346

Genetic diversity and combining ability among sorghum conversion lines  

E-Print Network [OSTI]

on genetic similarities estimated using AFLP markers and (3) to estimate heterosis, general and specific combining ability for grain yield among the set of conversion lines. Genetic diversity was present in the set of conversion lines evaluated. For the lines...

Mateo Moncada, Rafael Arturo

2007-04-25T23:59:59.000Z

347

Power Line Carrier (PLC) Signal Analysis of Smart Meters for Outlier Detection  

E-Print Network [OSTI]

Power Line Carrier (PLC) Signal Analysis of Smart Meters for Outlier Detection Rakesh Rao Dept-- A method for identifying outliers among a set of smart meters by using the power line carrier (PLC) signal strength is presented in this paper. The broad goal is to use the PLC signal as a predictor of transmission

Akella, Srinivas

348

A high accuracy computed water line list  

E-Print Network [OSTI]

A computed list of H$_{2}$$^{16}$O infra-red transition frequencies and intensities is presented. The list, BT2, was produced using a discrete variable representation two-step approach for solving the rotation-vibration nuclear motions. It is the most complete water line list in existence, comprising over 500 million transitions (65% more than any other list) and it is also the most accurate (over 90% of all known experimental energy levels are within 0.3 cm$^{-1}$ of the BT2 values). Its accuracy has been confirmed by extensive testing against astronomical and laboratory data. The line list has been used to identify individual water lines in a variety of objects including: comets, sunspots, a brown dwarf and the nova-like object V838 Mon. Comparison of the observed intensities with those generated by BT2 enables physical values to be derived for these objects. The line list can also be used to provide an opacity for models of the atmospheres of M-dwarf stars and assign previously unknown water lines in laboratory spectra.

R. J. Barber; J. Tennyson; G. J. Harris; R. N. Tolchenov

2006-01-11T23:59:59.000Z

349

alpha line profile: Topics by E-print Network  

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

calculations of IP line profiles based on hot model distributions of interplanetary hydrogen. We also find that the line profiles get narrower during solar maximum. The results...

350

Dynamic Line Rating: Research and Policy Evaluation  

SciTech Connect (OSTI)

Dynamic Line Rating (DLR) is a smart grid technology that allows the rating of electrical conductors to be increased based on local weather conditions. Overhead lines are conventionally given a conservative rating based on worst case scenarios. We demonstrate that observing the conditions in real time leads to additional capacity and safer operation. This paper provides a report of a pioneering scheme in the United States of America in which DLR has been applied. Thereby, we demonstrate that observing the local weather conditions in real time leads to additional capacity and safer operation. Secondly, we discuss limitations involved. In doing so, we arrive at novel insights which will inform and improve future DLR projects. Third, we provide a policy background and discussion to clarify the technology’s potential and identifies barriers to the imminent adoption of dynamic line rating systems. We provide suggestions for regulatory bodies about possible improvements in policy to encourage adoption of this beneficial technology.

Jake P. Gentle; Kurt S. Myers; Michael R. West

2014-07-01T23:59:59.000Z

351

Masking line foregrounds in intensity mapping surveys  

E-Print Network [OSTI]

We address the problem of line confusion in intensity mapping surveys and explore the possibility to mitigate line foreground contamination by progressively masking the brightest pixels in the observed map. We consider experiments targeting CO(1-0) at $z=3$, Ly$\\alpha$ at $z=7$, and CII at $z=7$, and use simulated intensity maps, which include both clustering and shot noise components of the signal and possible foregrounds, in order to test the efficiency of our method. We find that for CO and Ly$\\alpha$ it is quite possible to remove most of the foreground contribution from the maps via only 1%-3% pixel masking. The CII maps will be more difficult to clean, however, due to instrumental constraints and the high-intensity foreground contamination involved. While the masking procedure sacrifices much of the astrophysical information present in our maps, we demonstrate that useful cosmological information in the targeted lines can be successfully retrieved.

Breysse, Patrick C; Kamionkowski, Marc

2015-01-01T23:59:59.000Z

352

Challenges to Overcurrent Protection Devices under Line-line Faults in Solar Photovoltaic Arrays  

E-Print Network [OSTI]

Challenges to Overcurrent Protection Devices under Line-line Faults in Solar Photovoltaic Arrays Ye-MA, LLC Newburyport, MA, US Abstract--Solar photovoltaic (PV) arrays behave distinctively from remain undetected, which could lead to reduced system efficiency, reduced system reliability, and even

Lehman, Brad

353

Abstract--Power Line Communications (PLC) is used for information exchange over the lines  

E-Print Network [OSTI]

Abstract-- Power Line Communications (PLC) is used for information exchange over the lines installed for delivering the electrical power. Inhome PLC is a technology which delivers telecom services to every corner of a household through already existing electrical wiring. In recent years, PLC has emerged

Boyer, Edmond

354

Student On Line Access to Records Provides on-line, self service access to  

E-Print Network [OSTI]

SOLAR Student On Line Access to Records #12;Provides on-line, self service access to: Registrar Enrollment Appointments · Review Solar Messages Student Account/ Financial Aid: · View Support offered (available aid ­ i.e. Federal loans, scholarships, etc.) · Accept financial aid (i.e. loans, etc.) ­ loan

355

Inductive gas line for pulsed lasers  

DOE Patents [OSTI]

A gas laser having a metal inlet gas feed line assembly shaped as a coil, to function as an electrical inductance and therefore high impedance to pulses of electric current applied to electrodes at opposite ends of a discharge tube of a laser, for example. This eliminates a discharge path for the laser through the inlet gas feed line. A ferrite core extends through the coil to increase the inductance of the coil and provide better electric isolation. By elimination of any discharge breakdown through the gas supply, efficiency is increased and a significantly longer operating lifetime of the laser is provided.

Benett, William J. (Livermore, CA); Alger, Terry W. (Tracy, CA)

1985-01-01T23:59:59.000Z

356

Inductive gas line for pulsed lasers  

DOE Patents [OSTI]

A gas laser having a metal inlet gas feed line assembly shaped as a coil, to function as an electrical inductance and therefore high impedance to pulses of electric current applied to electrodes at opposite ends of a discharge tube of a laser, for example. This eliminates a discharge path for the laser through the inlet gas feed line. A ferrite core extends through the coil to increase the inductance of the coil and provide better electric isolation. By elimination of any discharge breakdown through the gas supply, efficiency is increased and a significantly longer operating lifetime of the laser is provided.

Benett, W.J.; Alger, T.W.

1982-09-29T23:59:59.000Z

357

Straight-line separation of two polyhedra  

E-Print Network [OSTI]

STRAIGHT-LINE SEPARATION OF TWO POLYHEDRA A Thesis by SU-HUA WANG Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1992 Major Subject...: Computer Science STRAIGHT-LINE SEPARATION OF TWO POLYHEDRA A Thesis by SU-HUA WANG Approved as to style and content by: Jan Wolter hair of Committee) Donald K. Friesen (Member) esa O. alav ( ember) Richard A, Volz (Head of Department) December...

Wang, Su-Hua

1992-01-01T23:59:59.000Z

358

Boron-10 Lined Proportional Counter Wall Effects  

SciTech Connect (OSTI)

The Department of Energy Office of Nuclear Safeguards (NA-241) is supporting the project 'Coincidence Counting With Boron-Based Alternative Neutron Detection Technology' at Pacific Northwest National Laboratory (PNNL) for development of an alternative neutron coincidence counter. The goal of this project is to design, build and demonstrate a boron-lined proportional tube based system in the configuration of a coincidence counter. This report provides information about how variations in proportional counter radius and gas pressure in a typical coincident counter design might affect the observed signal from boron-lined tubes. A discussion comparing tubes to parallel plate counters is also included.

Siciliano, Edward R.; Kouzes, Richard T.

2012-05-01T23:59:59.000Z

359

An analysis of multiple component mooring lines  

E-Print Network [OSTI]

-5 Tension At Excursion Parameter Response--Weight Parameter 0. 2; Pretension Parameter 16 38 6-6 Line Length Parameter Response-- Weight Parameter 0. 2; Pretension Parameter 16 39 6-7 Excursion Parameter Response-- Weight Parameter 0. 2; Pretension... Parameter 2 40 6-8 Anchor Load Parameter Response-- Weight Parameter 0. 2; Pretension Parameter 2 41 6-9 Tension At Excursion Parameter Response--Weight Parameter 0. 2; Pretension Parameter 2 6-'I 0 Line Length Parameter Response-- Weight Parameter 0...

Walters, Thomas Robert

1977-01-01T23:59:59.000Z

360

Ionization Chambers in the FLASH Dump Line  

E-Print Network [OSTI]

. 7, 2010FLASH Seminar, Dec. 7, 2010 BPM 13DUMP Dump Line Upgrade 2009Dump Line Upgrade 2009 BPM 9DUMP BPM 5DUMP Toroid 9DUMP OTR screen 9DUMP BLM 14DUMP BLM 13.1DUMP 13.2DUMP BLM 9DUMP BLM 6DUMP BLM 1.1DUMP 1.2DUMP BPM 10DUMP BPM 16DUMP 8 x BHM 16DUMP BLM 14R.DUMP 14L.DUMP 14U.DUMP 14D.DUMP Ionization

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


361

New Construction of Distribution Lines, Service Lines, and Appurtenant Facilities in Certain Visually Significant Resources Outside Residential Subdivisions (New York)  

Broader source: Energy.gov [DOE]

Any proposed construction of distribution lines, service lines, and appurtenant facilities to electric utilities located near scenic areas of statewide significance, including Adirondack park...

362

Dielectronic recombination lines of C{sup +}  

SciTech Connect (OSTI)

The present paper presents atomic data generated to investigate the recombination lines of C II in the spectra of planetary nebulae. These data include energies of bound and autoionizing states, oscillator strengths and radiative transition probabilities, autoionization probabilities, and recombination coefficients. The R-matrix method of electron scattering theory was used to describe the C{sup 2+} plus electron system.

Sochi, Taha, E-mail: taha.sochi@kcl.ac.uk; Storey, Peter J.

2013-11-15T23:59:59.000Z

363

On line chemical composition of analyzer development  

SciTech Connect (OSTI)

This status report details progress made on the development of an on-line chemical analyzer. Dynamic studies of the distillation column, approval of testing plans, installation of a sample cell and raman analyzer, design of computerized control systems are described. Information on seminars and published papers is also included. (GHH)

Not Available

1992-01-01T23:59:59.000Z

364

High temperature lined conduits, elbows and tees  

DOE Patents [OSTI]

A high temperature lined conduit comprising, a liner, a flexible insulating refractory blanket around and in contact with the liner, a pipe member around the blanket and spaced therefrom, and castable rigid refractory material between the pipe member and the blanket. Anchors are connected to the inside diameter of the pipe and extend into the castable material. The liner includes male and female slip joint ends for permitting thermal expansion of the liner with respect to the castable material and the pipe member. Elbows and tees of the lined conduit comprise an elbow liner wrapped with insulating refractory blanket material around which is disposed a spaced elbow pipe member with castable refractory material between the blanket material and the elbow pipe member. A reinforcing band is connected to the elbow liner at an intermediate location thereon from which extend a plurality of hollow tubes or pins which extend into the castable material to anchor the lined elbow and permit thermal expansion. A method of fabricating the high temperature lined conduit, elbows and tees is also disclosed which utilizes a polyethylene layer over the refractory blanket after it has been compressed to maintain the refractory blanket in a compressed condition until the castable material is in place. Hot gases are then directed through the interior of the liner for evaporating the polyethylene and setting the castable material which permits the compressed blanket to come into close contact with the castable material.

De Feo, Angelo (Passaic, NJ); Drewniany, Edward (Bergen, NJ)

1982-01-01T23:59:59.000Z

365

The Bottom Line Space@Penn Upgrade  

E-Print Network [OSTI]

The Bottom Line Space@Penn Upgrade Coming Soon! A project is underway to upgrade the current that allows designated users in the field to update certain elements of their space. This project, whose: Grants & Projects ­ Used for invoice generation, overhead and revenue recognition, and award and project

Sharp, Kim

366

Modeling Product Line Architectures through Change Sets  

E-Print Network [OSTI]

architecture (PLA) § Software architecture for product line · Single, monolithic architecture for multiple products · Variation points to differentiate among products 3/17 KAIST SE LAB 2010 PLA > Engineer or guard PLA PLA PLA Engineer or guard Engineer or guard Change set & Relation Change set

Bae, Doo-Hwan

367

Community Trees Power Lines and Trees  

E-Print Network [OSTI]

aesthetic and psychological benefits. Figure 2. Grown into a power pole. #12;become hazardous to peopleCommunity Trees Power Lines and Trees Introduction Trees serve many purposes in urban and rural, hundreds of people throughout the United States are injured or killed each year when they climb or prune

Koford, Rolf R.

368

Geomembranes for Canal Lining Geosynthetics 2009  

E-Print Network [OSTI]

for this application including PVC, HDPE, LDPE, CSPE, and EPDM geomembranes. Frequently these geomembranes require for canal liners based on field test programs. The first such test program was started with a PVC test to evaluate the effectiveness of a range of canal lining alternatives. Traditionally, PVC geomembranes have

369

Tassel Pipeline Tutorial (Command Line Interface)  

E-Print Network [OSTI]

Tassel Pipeline Tutorial (Command Line Interface) Terry Casstevens Institute for Genomic Diversity, Cornell University May 11, 2011 #12;Tassel Pipeline Basics... · Consists of Modules (i.e. Plugins) · Output from one Module can be Input to another Module. Determined by order specified. run_pipeline

Buckler, Edward S.

370

Berkeley Off-line Radioisotope Generator (BORG)  

SciTech Connect (OSTI)

Development of chemical separations for the transactinides has traditionally been performed with longer-lived tracer activities purchased commercially. With these long-lived tracers, there is always the potential problem that the tracer atoms are not always in the same chemical form as the short-lived atoms produced in on-line experiments. This problem is especially severe for elements in groups 4 and 5 of the periodic table, where hydrolysis is present. The long-lived tracers usually are stored with a complexing agent to prevent sorption or precipitation. Chemistry experiments performed with these long-lived tracers are therefore not analogous to those chemical experiments performed in on-line experiments. One way to eliminate the differences between off-line and on-line chemistry experiments is through the use of a {sup 252}Cf fission fragment collection device. A {sup 252}Cf fission fragment collection device has already been constructed [1]. This device is limited in its capabilities. A new fission fragment device would allow the study of the chemical properties of the homologues of the heaviest elements. This new device would be capable of producing fission fragments for fast gas chemistry and aqueous chemistry experiments, long-lived tracers for model system development and neutrons for neutron activation. Fission fragment activities produced in this way should have the same chemical form as those produced in Cyclotron irradiations. The simple operation of this source will allow more rapid and reliable development of radiochemical separations with homologues of transactinide elements.

Sudowe, Ralf; Patin, Joshua B.

2001-07-23T23:59:59.000Z

371

The Arctic Tree Line and Climate Change  

E-Print Network [OSTI]

­ Compared the spruce treeline between 1947 and 1989 ­ Used remote sensing applications ­ Mean temperature cover - Causes surface heating Forest Tundra Chapin et al., (2005), 10 Nadezhda et al., (2008) Albedo) ­Heating effect exceeds cooling effect ­Advances in the tree line are causing global warming to occur even

Blouin-Demers, Gabriel

372

EPR Line Shifts and Line Shape Changes due to Spin Exchange of Nitroxide Free Radicals in Liquids: 6. Separating Line Broadening due to Spin Exchange and Dipolar Interactions  

E-Print Network [OSTI]

EPR Line Shifts and Line Shape Changes due to Spin Exchange of Nitroxide Free Radicals in Liquids 23, 2008; ReVised Manuscript ReceiVed: January 12, 2009 EPR spectra of perdeuterated 2

Bales, Barney

373

Effect of HVDC line faults on transient torsional torques of turbine-generator shafts  

SciTech Connect (OSTI)

This paper investigates the effects of HVdc line faults, line de-energization, and line re-energization on the transient torsional stresses of steam turbine-generator (T-G) units. The studies are conducted on a bipole HVdc system which connects a T-G set to a large ac system. The shaft transient stresses of the T-G set as a result of HVac line fault, fault clearing, and automatic reclosure are also determined when the HVdc transmission system is replaced by an equivalent double-line HVac system. The EMTDC program is used for the simulation studies. The studies conclude that transient shaft stresses as a result of HVdc line fault and its subsequent switching events are (1) significantly less severe than those of HVac faults and subsequent switchings, and (2) not sensitive to the fault location and disturbance duration.

Shi, W. (Xi'an Jiaotong Univ. (China). Dept. of Electrical Engineering); Iravani, M.R. (Univ. of Toronto, Ontario (Canada). Dept. of Electrical Engineering)

1994-08-01T23:59:59.000Z

374

July 2, 2007 1 Optimal Transmission Switching  

E-Print Network [OSTI]

d to node n. zk: binary variable indicating whether transmission line k is removed from the system limit on number of open transmission lines Manuscript received July 2, 2007. This work was supported-mail: ferris@cs.wisc.edu). Sets : Set of all transmission lines L: Set of open transmission lines in solution

Mangasarian, Olvi L.

375

In-line real time air monitor  

DOE Patents [OSTI]

An in-line gas monitor capable of accurate gas composition analysis in a continuous real time manner even under strong applied vacuum conditions operates by mixing an air sample with helium forming a sample gas in two complementary sample loops embedded in a manifold which includes two pairs of 3-way solenoid valves. The sample gas is then analyzed in an ion trap mass spectrometer on a continuous basis. Two valve drivers actuate the two pairs of 3-way valves in a reciprocating fashion, so that there is always flow through the in-line gas monitor via one or the other of the sample loops. The duty cycle for the two pairs of 3-way valves is varied by tuning the two valve drivers to a duty cycle typically between 0.2 to 0.7 seconds.

Wise, Marcus B. (Kingston, TN); Thompson, Cyril V. (Knoxville, TN)

1998-01-01T23:59:59.000Z

376

In-line real time air monitor  

DOE Patents [OSTI]

An in-line gas monitor capable of accurate gas composition analysis in a continuous real time manner even under strong applied vacuum conditions operates by mixing an air sample with helium forming a sample gas in two complementary sample loops embedded in a manifold which includes two pairs of 3-way solenoid valves. The sample gas is then analyzed in an ion trap mass spectrometer on a continuous basis. Two valve drivers actuate the two pairs of 3-way valves in a reciprocating fashion, so that there is always flow through the in-line gas monitor via one or the other of the sample loops. The duty cycle for the two pairs of 3-way valves is varied by tuning the two valve drivers to a duty cycle typically between 0.2 to 0.7 seconds. 3 figs.

Wise, M.B.; Thompson, C.V.

1998-07-14T23:59:59.000Z

377

Boron-10 Lined Proportional Counter Model Validation  

SciTech Connect (OSTI)

The Department of Energy Office of Nuclear Safeguards (NA-241) is supporting the project “Coincidence Counting With Boron-Based Alternative Neutron Detection Technology” at Pacific Northwest National Laboratory (PNNL) for the development of an alternative neutron coincidence counter. The goal of this project is to design, build and demonstrate a boron-lined proportional tube-based alternative system in the configuration of a coincidence counter. This report discusses the validation studies performed to establish the degree of accuracy of the computer modeling methods current used to simulate the response of boron-lined tubes. This is the precursor to developing models for the uranium neutron coincidence collar under Task 2 of this project.

Lintereur, Azaree T.; Siciliano, Edward R.; Kouzes, Richard T.

2012-06-30T23:59:59.000Z

378

ADHM Revisited: Instantons and Wilson Lines  

E-Print Network [OSTI]

We revisit the well-studied D0-D4 system of D-branes and its relationship to the ADHM construction. It is well known that the D0-branes appear as instantons in the D4-brane worldvolume. We add a Wilson line to the D4-brane in the guise of an extended fundamental string and determine how this affects the D0-brane dynamics. As the D0-brane moves in the presence of the Wilson line, it experiences a Lorentz force, proportional to its Yang-Mills gauge connection. From the perspective of the D0-brane quantum mechanics, this force emerges through the ADHM construction of the self-dual gauge connection.

David Tong; Kenny Wong

2014-10-30T23:59:59.000Z

379

Reliability of lightning resistant overhead distribution lines  

SciTech Connect (OSTI)

An assessment of the 32 year historical reliability of the 13.8 kV electrical distribution system at the Oak Ridge National Laboratory (ORNL) in Tennessee has yielded several conclusions useful In the planning of Industrial power Systems. The system configuration at ORNL has essentially remained unchanged in the last 32 years which allows a meaningful comparison of reliability trends for the plant`s eight overhead distribution lines, two of which were built in the 1960`s with lightning resistant construction techniques. Meticulous records indicating the cause, duration, and location of 135 electric outages in the plant`s distribution system have allowed a reliability assessment to be performed. The assessment clearly shows how differences in voltage construction class, length, age, and maximum elevation above a reference elevation influence the reliability of overhead power distribution lines. Comparisons are also made between the ORNL historical data and predicted failure rates from ANSI and IEEE industry surveys.

Tolbert, L.M.; Cleveland, J.T.; Degenhardt, L.J.

1995-04-01T23:59:59.000Z

380

Forms and Determinant Lines Simon Scott  

E-Print Network [OSTI]

has discrete spectrum {(n + )2 , (n - )2 : n N}, where u = e2i satisfies u2 (1 + |z|2 ) + 2u(z + z Forms and Determinant Lines Simon Scott 1 Introduction The purpose here is to give a direct (M) Hi-2 (Y ) is integration over the fibres. That is, with = c1(T) ch(Ind (m)) = f em · 1 - e

Bushnell, Colin J.

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


381

New Diagnostics in the FLASH Dump Line  

E-Print Network [OSTI]

Line Status Aug. 2009 BPM 9DUMP BPM 15DUMP BPM 5DUMP Toroid 9DUMP OTR screen 9DUMP BLM 14DUMP BLM 13 at the dump #12;N. Baboi, MDIN. Baboi, MDI FLASH Seminar, Dec. 1, 2009FLASH Seminar, Dec. 1, 2009 Old BPM 15DUMPOld BPM 15DUMP ·Strange behavior of BPM signals measured impedance from end of cable (in bld. 49): L

382

Fermi/LAT broad emission line blazars  

E-Print Network [OSTI]

We study the broad emission line blazars detected in the gamma-ray band by the Large Area Telescope onboard the Fermi satellite and with the optical spectrum studied by Shaw et al. (2012, 2013). The observed broad line strength provides a measure of the ionizing luminosity of the accretion disk, while the gamma-luminosity is a proxy for the bolometric non-thermal beamed jet emission. The resulting sample, composed by 217 blazars, is the best suited to study the connection between accretion and jet properties. We compare the broad emission line properties of these blazars with those of radio-quiet and radio-loud quasars present in the Sloan Digital Sky Survey, to asses differences and similarities of the disc luminosity and the virial black hole mass. For most sources, we could derive the black hole mass by reproducing the IR-optical-UV data with a standard accretion disc spectrum, and we compared the black hole masses derived with the two methods. The distributions of the masses estimated in the two ways agre...

Ghisellini, G

2015-01-01T23:59:59.000Z

383

1346 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 23, NO. 3, AUGUST 2008 Optimal Transmission Switching  

E-Print Network [OSTI]

to node . Binary variable indicating whether transmission line is removed from the system (open susceptance of line . Large number. Upper limit on number of open transmission lines. Sets Set of all transmission lines. Set of open transmission lines in solution to transmission switching in which

Ferris, Michael C.

384

Power Lines and Crops Can Be Good Neighbors  

SciTech Connect (OSTI)

Two of the Pacific Northwest’s greatest economic assets are its wealth of agriculture and its clean and reliable electricity fueled largely by hydropower. Sometimes the two intersect. Transmission lines carrying electricity to the region’s farms, businesses and homes must, of necessity, span large areas where people grow crops and orchards. To ensure a safe and reliable flow of electricity across these expanses, trees and other vegetation must be managed to certain standards. At the same time, the Bonneville Power Administration — which owns and operates three-quarters of the region’s high-voltage transmission — recognizes the importance of our region’s agricultural bounty. We are committed to working with individuals and agricultural communities to facilitate ongoing land-use activities in transmission rights-of-way as long as those uses are compatible with transmission safety and reliability standards. Our goal with vegetation management is to keep you and your property safe while protecting the reliability of our region’s electricity system. By working together, BPA and landowners can protect the system and public safety.

none,

2010-08-01T23:59:59.000Z

385

PUMPING UP THE [N I] NEBULAR LINES  

SciTech Connect (OSTI)

The optical [N I] doublet near 5200 A is anomalously strong in a variety of emission-line objects. We compute a detailed photoionization model and use it to show that pumping by far-ultraviolet (FUV) stellar radiation previously posited as a general explanation applies to the Orion Nebula (M42) and its companion M43; but, it is unlikely to explain planetary nebulae and supernova remnants. Our models establish that the observed nearly constant equivalent width of [N I] with respect to the dust-scattered stellar continuum depends primarily on three factors: the FUV to visual-band flux ratio of the stellar population, the optical properties of the dust, and the line broadening where the pumping occurs. In contrast, the intensity ratio [N I]/H{beta} depends primarily on the FUV to extreme-ultraviolet ratio, which varies strongly with the spectral type of the exciting star. This is consistent with the observed difference of a factor of five between M42 and M43, which are excited by an O7 and B0.5 star, respectively. We derive a non-thermal broadening of order 5 km s{sup -1} for the [N I] pumping zone and show that the broadening mechanism must be different from the large-scale turbulent motions that have been suggested to explain the line widths in this H II region. A mechanism is required that operates at scales of a few astronomical units, which may be driven by thermal instabilities of neutral gas in the range 1000-3000 K. In an Appendix A, we describe how collisional and radiative processes are treated in the detailed model N I atom now included in the CLOUDY plasma code.

Ferland, G. J.; Porter, R. L. [Department of Physics, University of Kentucky, Lexington, KY 40506 (United States); Henney, W. J. [Centro de Radioastronomia y Astrofisica, UNAM Campus Morelia, Apartado Postal 3-72, 58090 Morelia, Michoacan (Mexico); O'Dell, C. R. [Department of Physics and Astronomy, Vanderbilt University, Box 1807-B, Nashville, TN 37235 (United States); Van Hoof, P. A. M. [Royal Observatory of Belgium, Ringlaan 3, 1180 Brussels (Belgium); Williams, R. J. R. [AWE plc, Aldermaston, Reading RG7 4PR (United Kingdom)

2012-09-20T23:59:59.000Z

386

Speed-line for 3D animation  

E-Print Network [OSTI]

Committee Members, Carol LaFayette John Keyser Head of Department, Mardelle Shepley December 2005 Major Subject: Visualization Sciences iii ABSTRACT Speed-Line for 3D Animation. (December 2005) Won Chan Song, B.F.A., Ringling School of Art and Design Chair... to thank my committee members, Prof. Carol LaFayette and Dr. John Keyser for their advice and feedback. My gratitude also goes to Hobart Chan for letting me borrow his car model, which saved me a huge amount of time when I was making an animation as a...

Song, Won Chan

2007-04-25T23:59:59.000Z

387

LINE Commission Visits Idaho National Laboratory  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample Environment: Magnet and6ledp/ The LINE Commission

388

LIQUID & GAS NITROGEN LINE SIZING  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample Environment: Magnet and6ledp/ The LINE Commission

389

Plains & Eastern Clean Line HVDC Scheme  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Careerlumens_placard-green.epsEnergy1.pdfMarket |21, 2015 7:00AM to 10:30AM EDT Tuition Cost: $0Line

390

On Line Journals - Links - Cyclotron Institute  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratorySpeeding access1 TechnicalOil inventories inOmbudsOmni JawOn-Line

391

Air Entrainment by Viscous Contact Lines  

E-Print Network [OSTI]

The entrainment of air by advancing contact lines is studied by plunging a solid plate into a very viscous liquid. Above a threshold velocity, we observe the formation of an extended air film, typically 10 microns thick, which subsequently decays into air bubbles. Exploring a large range of viscous liquids, we find an unexpectedly weak dependence of entrainment speed on liquid viscosity, pointing towards a crucial role of the flow inside the air film. This induces a striking asymmetry between wetting and dewetting: while the breakup of the air film strongly resembles the dewetting of a liquid film, the wetting speeds are larger by orders of magnitude.

Marchand, Antonin; Snoeijer, Jacco H; Andreotti, Bruno

2011-01-01T23:59:59.000Z

392

Efficient buffer design algorithms for production line profit maximization  

E-Print Network [OSTI]

A production line is a manufacturing system where machines are connected in series and separated by buffers. The inclusion of buffers increases the average production rate of the line by limiting the propagation of ...

Shi, Chuan, Ph. D. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

393

Evidence for Line Broadening by Electron Scattering in the Broad Line Region of NGC 4395  

E-Print Network [OSTI]

A high quality Keck spectrum of the Halpha line in NGC 4395 reveals symmetric exponential wings, fv\\propto e^{-v/sigma}, with sigma~500km/s. The wings extend out to >2500km/s from the line core, and down to a flux density of <10^-3 of the peak flux density. Numerical and analytic calculations indicate that exponential wings are expected for optically thin, isotropic, thermal electron scattering. Such scattering produces exponential wings with sigma=1.1sigma_e(ln tau_e^-1)^0.45, where sigma_e is the electron velocity dispersion, and tau_e is the electron scattering optical depth. The Halpha wings in NGC 4395 are well fit by an electron scattering model with tau_e=0.34, and an electron temperature T_e=1.1x10^4K. Such conditions are produced in photoionized gas with an ionization parameter U=0.3, as expected in the broad line region (BLR). Similar analysis of the [O III] 5007 line yields tau_e<0.01, consistent with the lower ionization in the narrow line region. If the electron scattering interpretation is correct, there should be a tight correlation between tau_e and the ionizing flux on time scales shorter than the BLR dynamical time, or ~1 week for NGC 4395. In contrast, the value of sigma should remain nearly constant on these time scales. Such wings may be discernible in other objects with unusually narrow Balmer lines, and they can provide a useful direct probe of T_e and tau_e in the BLR.

Ari Laor

2006-01-30T23:59:59.000Z

394

Fuzzy Relative Positioning for On-Line Handwritten Stroke Analysis  

E-Print Network [OSTI]

Fuzzy Relative Positioning for On-Line Handwritten Stroke Analysis Franc¸ois Bouteruche, S and robust mod- elling of the relative positioning of on-line handwritten strokes. We exploit the fuzzy to deal with the particular nature of on-line strokes, which are consti- tuted of non-connected points

Paris-Sud XI, Université de

395

Ridgeview Publishing Company Indeterminism and the Thin Red Line  

E-Print Network [OSTI]

Ridgeview Publishing Company Indeterminism and the Thin Red Line Author(s): Nuel Belnap INDETERMINISM AND THE THIN RED LINE NuelBelnapandMitchellGreen Universityof Pittsburgh 1. Introduction 2,settledness,andactualityin branchingtime 5. The AssertionProblem 6. TheThinRedLine 7. Time's wingedchariothurriesnear 1. Introduction

Belnap, Nuel

396

Space charge measurements downwind from a monopolar 500 KV HVDC test line  

SciTech Connect (OSTI)

One quantity that helps describe the electrical environment in the vicinity of a HVDC line is space charge, a quantity that consists of charged air ions and charged aerosols. This paper describes measurements made at the Electric Power Research Institute's High Voltage Transmission Research Center (HVTRC) in Lenox, MA to determine the concentration of space charge present downwind of a HVDC test line and the influence of wind on the space charge level. The instrumentation used to make the measurements of space charge downwind of the line is also described.

Carter, P.J.; Johnson, G.B. (General Electric Co., EPRI-High Voltage Transmission, Research Center, Lenox, MA (US))

1988-10-01T23:59:59.000Z

397

The broadening of Lyman-alpha forest absorption lines  

E-Print Network [OSTI]

We provide an analytical description of the line broadening of HI absorbers in the Lyman-alpha forest resulting from Doppler broadening and Jeans smoothing. We demonstrate that our relation captures the dependence of the line-width on column density for narrow lines in z~3 mock spectra remarkably well. Broad lines at a given column density arise when the underlying density structure is more complex, and such clustering is not captured by our model. Our understanding of the line broadening opens the way to a new method to characterise the thermal state of the intergalactic medium and to determine the sizes of the absorbing structures.

Garzilli, Antonella; Schaye, Joop

2015-01-01T23:59:59.000Z

398

The Infrared Ca II lines in Sunspot Umbrae  

E-Print Network [OSTI]

We present an empirical working model for sunspot umbrae which equally describes observed continuum intensities and line profiles. The wings of the infrared Ca II lines depend sensitively on the temperature gradient at -0.6 umbra and are thus insensitive to parasitic light. It is also shown that the infrared K I 7699 line is suitable for umbral spectroscopy since it is not seriously blended, its continuum is well defined and it is less influenced by parasitic light as compared to lines in the visible spectrum, due to the smaller umbal contrast. Calculations show that the umbral gradient dT/d(tau), required to fit the Ca II triplet lines, strongly conflicts with the observed profiles of K I 7699, NaD2 and Fe I 5434 (g=0), even when assuming vanishing Fe II lines for a maximum correction of parasitic light. It is shown that the discrepancy from the different line pr...

Kollatschny, W; Wiehr, E; Fallipou, M A

2012-01-01T23:59:59.000Z

399

XMM-Newton Observations of AGN Iron Line Profiles  

E-Print Network [OSTI]

XMM-Newton observations of type I AGN are presented. The properties of the iron K emission line are reviewed, the majority of AGN observed by XMM-Newton show narrow, unresolved (by XMM) iron lines at 6.4 keV from cold matter that must originate far from the inner accretion disc, perhaps in the putative torus or outer broad line region. The strength of this narrow line appears to decrease with luminosity, implying a reduction in the covering fraction of this material in the more luminous quasars. Few examples of the broad, relativistic iron line profile have been found by XMM-Newton, although in MCG -6-30-15, the extreme breadth of the broad line component may imply a Kerr metric for the central black hole. Generally, relativistic Fe K line profiles are not required in a number of other Seyfert 1 X-ray spectra.

James Reeves

2002-11-18T23:59:59.000Z

400

Atomic line emission analyzer for hydrogen isotopes  

DOE Patents [OSTI]

Apparatus for isotopic analysis of hydrogen comprises a low pressure chamber into which a sample of hydrogen is introduced and then exposed to an electrical discharge to excite the electrons of the hydrogen atoms to higher energy states and thereby cause the emission of light on the return to lower energy states, a Fresnel prism made at least in part of a material anomalously dispersive to the wavelengths of interest for dispersing the emitted light, and a photodiode array for receiving the dispersed light. The light emitted by the sample is filtered to pass only the desired wavelengths, such as one of the lines of the Balmer series for hydrogen, the wavelengths of which differ slightly from one isotope to another. The output of the photodiode array is processed to determine the relative amounts of each isotope present in the sample. Additionally, the sample itself may be recovered using a metal hydride.

Kronberg, James W. (108 Independent Blvd., Aiken, SC 29801)

1993-01-01T23:59:59.000Z

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


401

Atomic line emission analyzer for hydrogen isotopes  

DOE Patents [OSTI]

Apparatus for isotopic analysis of hydrogen comprises a low pressure chamber into which a sample of hydrogen is introduced and then exposed to an electrical discharge to excite the electrons of the hydrogen atoms to higher energy states and thereby cause the emission of light on the return to lower energy states, a Fresnel prism made at least in part of a material anomalously dispersive to the wavelengths of interest for dispersing the emitted light, and a photodiode array for receiving the dispersed light. The light emitted by the sample is filtered to pass only the desired wavelengths, such as one of the lines of the Balmer series for hydrogen, the wavelengths of which differ slightly from one isotope to another. The output of the photodiode array is processed to determine the relative amounts of each isotope present in the sample. Additionally, the sample itself may be recovered using, a metal hydride.

Kronberg, J.W.

1991-05-08T23:59:59.000Z

402

Calibrating transport lines using LOCO techniques  

SciTech Connect (OSTI)

With the 12GeV upgrade underway at CEBAF, there is a need to re-characterize the beamlines after the modifications made to it to accommodate running at higher energies. We present a linear perturbation approach to calibrating the optics model of transport lines. This method is adapted from the LOCO method in use for storage rings. We consider the effect of quadrupole errors, dipole construction errors as well as beam position monitors and correctors calibrations. The ideal model is expanded to first order in Taylor series of the quadrupole errors. A set of difference orbits obtained by exciting the correctors along the beamline is taken, yielding the measured response matrix. An iterative procedure is invoked and the quadrupole errors as well as beam position monitors and corrector calibration factors are obtained. Here we present details of the method and results of first measurements at CEBAF in early 2011.

Yves Roblin

2011-09-01T23:59:59.000Z

403

On-line tritium production monitor  

DOE Patents [OSTI]

A scintillation optical fiber system for the on-line monitoring of nuclear reactions in an event-by-event manner is described. In the measurement of tritium production one or more optical fibers are coated with enriched {sup 6}Li and connected to standard scintillation counter circuitry. A neutron generated {sup 6}Li(n)T reaction occurs in the coated surface of {sup 6}Li-coated fiber to produce energetic alpha and triton particles one of which enters the optical fiber and scintillates light through the fiber to the counting circuit. The coated optical fibers can be provided with position sensitivity by placing a mirror at the free end of the fibers or by using pulse counting circuits at both ends of the fibers. 5 figures.

Mihalczo, J.T.

1993-11-23T23:59:59.000Z

404

On-line tritium production monitor  

DOE Patents [OSTI]

A scintillation optical fiber system for the on-line monitoring of nuclear reactions in an event-by-event manner is described. In the measurement of tritium production one or more optical fibers are coated with enriched .sup.6 Li and connected to standard scintillation counter circuitry. A neutron generated .sup.6 Li(n )T reaction occurs in the coated surface of .sup.6 Li-coated fiber to produce energetic alpha and triton particles one of which enters the optical fiber and scintillates light through the fiber to the counting circuit. The coated optical fibers can be provided with position sensitivity by placing a mirror at the free end of the fibers or by using pulse counting circuits at both ends of the fibers.

Mihalczo, John T. (Oak Ridge, TN)

1993-01-01T23:59:59.000Z

405

Insulation spacer eliminates electric shorts between lines  

SciTech Connect (OSTI)

The design criteria incorporated into the pipeline insulating spacer were: spacer material selected must have a very large compressive and tensile strength in order to withstand the weight and stress resulting on the pipelines; provide the necessary abrasive resistance, dielectric strength, and will not decay underground; must not soften with heat when used around or near stream lines or will not cold flow under pressure; minimum length and circumference to reduce ''Shielding Effects'' from any cathodic protection system; and provide a material that incorporates a maximum strength at a minimum thickness. Explains that electric shorts are caused by 2 or more metallic structures in contact with each other. Notes that the insulating spacer's use has been expanded to provide electrical and physical insulation between carrier pipe and casing, supports for piping in compressing stations, and for pipelines that are suspended on bridges.

Colaizzi, J.F.; Rockafellow, G.B.

1983-03-01T23:59:59.000Z

406

Atomic line emission analyzer for hydrogen isotopes  

DOE Patents [OSTI]

Apparatus for isotopic analysis of hydrogen comprises a low pressure chamber into which a sample of hydrogen is introduced and then exposed to an electrical discharge to excite the electrons of the hydrogen atoms to higher energy states and thereby cause the emission of light on the return to lower energy states, a Fresnel prism made at least in part of a material anomalously dispersive to the wavelengths of interest for dispersing the emitted light, and a photodiode array for receiving the dispersed light. The light emitted by the sample is filtered to pass only the desired wavelengths, such as one of the lines of the Balmer series for hydrogen, the wavelengths of which differ slightly from one isotope to another. The output of the photodiode array is processed to determine the relative amounts of each isotope present in the sample. Additionally, the sample itself may be recovered using a metal hydride.

Kronberg, J.W.

1993-03-30T23:59:59.000Z

407

Second Line of Defense Spares Program Assessment  

SciTech Connect (OSTI)

The Office of the Second Line of Defense (SLD) is part of the Department of Energy‘s (DOE) National Nuclear Security Administration (NNSA). The SLD Program accomplishes its critical global security mission by forming cooperative relationships with partner countries to install passive radiation detection systems that augment traditional inspection and law enforcement measures by alerting border officials to the presence of special nuclear or other radiological materials in cross-border traffic. An important tenet of the program is to work collaboratively with these countries to establish the necessary processes, procedures, infrastructure and conditions that will enable them to fully assume the financial and technical responsibilities for operating the equipment. As the number of operational deployments grows, the SLD Program faces an increasingly complex logistics process to promote the timely and efficient supply of spare parts.

Henderson, Dale L.; Muller, George; Mercier, Theresa M.; Brigantic, Robert T.; Perkins, Casey J.; Cooley, Scott K.

2012-11-20T23:59:59.000Z

408

On-line chemical composition analyzer development  

SciTech Connect (OSTI)

The energy consumed in distillation processes in the United States represents nearly three percent of the total national energy consumption. If effective control of distillation columns can be accomplished, it has been estimated that it would result in a reduction in the national energy consumption of 0.3%. Real-time control based on mixture composition could achieve these savings. However, the major distillation processes represent diverse applications and at present there does not exist a proven on-line chemical composition sensor technology which can be used to control these diverse processes in real-time. This report presents a summary of the findings of the second phase of a three phase effort undertaken to develop an on-line real-time measurement and control system utilizing Raman spectroscopy. A prototype instrument system has been constructed utilizing a Perkin Elmer 1700 Spectrometer, a diode pumped YAG laser, two three axis positioning systems, a process sample cell land a personal computer. This system has been successfully tested using industrially supplied process samples to establish its performance. Also, continued application development was undertaken during this Phase of the program using both the spontaneous Raman and Surface-enhanced Raman modes of operation. The study was performed for the US Department of Energy, Office of Industrial Technologies, whose mission is to conduct cost-shared R D for new high-risk, high-payoff industrial energy conservation technologies. Although this document contains references to individual manufacturers and their products, the opinions expressed on the products reported do not necessarily reflect the position of the Department of Energy.

Roberts, M.J.; Garrison, A.A.; Muly, E.C.; Moore, C.F.

1992-02-01T23:59:59.000Z

409

Transmission Dr. Sandra Cruz-Pol  

E-Print Network [OSTI]

Transmission Lines Dr. Sandra Cruz-Pol ECE Dept. UPRM Exercise 11.3 n A 40-m long TL has Vg=15 Vrms to electric circuits! cmc kmc GHz Hz 15000,000,2000/ 000,560/ 2 60 == == Transmission Lines I. TL parameters-wave transformer ¨ Slotted line ¨ Single stub VI. Microstrips Transmission Lines (TL) n TL have two conductors

Cruz-Pol, Sandra L.

410

INVESTIGATION OF A DYNAMIC POWER LINE RATING CONCEPT FOR IMPROVED WIND ENERGY INTEGRATION OVER COMPLEX TERRAIN  

SciTech Connect (OSTI)

Dynamic Line Rating (DLR) is a smart grid technology that allows the rating of power line to be based on real-time conductor temperature dependent on local weather conditions. In current practice overhead power lines are generally given a conservative rating based on worst case weather conditions. Using historical weather data collected over a test bed area, we demonstrate there is often additional transmission capacity not being utilized with the current static rating practice. We investigate a new dynamic line rating methodology using computational fluid dynamics (CFD) to determine wind conditions along transmission lines at dense intervals. Simulated results are used to determine conductor temperature by calculating the transient thermal response of the conductor under variable environmental conditions. In calculating the conductor temperature, we use both a calculation with steady-state assumption and a transient calculation. Under low wind conditions, steady-state assumption predicts higher conductor temperatures that could lead to curtailments, whereas transient calculations produce conductor temperatures that are significantly lower, implying the availability of additional transmission capacity.

Jake P. Gentle; Kurt S Myers; Tyler B Phillips; Inanc Senocak; Phil Anderson

2014-08-01T23:59:59.000Z

411

Energy measurement utilizing on-line chromatograph  

SciTech Connect (OSTI)

Most gas contracts today have at least a BTU specification and many use MMBTU (million BTU) rather than gas volume for custody transfer measurement. Gas chromatography is today being chosen more and more because the calculations of the gas volumes in modem electronic flow meters requires not only BTU{sub 5} information, but specific gravity, Mol % CO{sub 2} and Mol % N{sub 2}. The new AGA-8 supercompressibility equations also require a complete hydrocarbon analysis. What then, is a BTU? BTU is the acronym for British Thermal Unit. One BTU is the quantity of heat required to raise the temperature of one pound of water from 58.5{degrees}F to 59.5{degrees}F (about 1055.056 joules (SI))3. The higher the BTU content, the more energy can be obtained from burning the gas. It just doesn`t take as many cubic feet of gas to heat the home hot water tank if the gas is 1090 BTU instead of 940 BTU per SCF. The BTU, then, is a prime indicator of natural gas quality. An MMBTU{sup 2} is calculated by: BTU/CF * MMCF = MMBTU What is it worth to keep track of the natural gas BTU? If we postulate 1000 BTU/CF as fairly average for natural gas, and {+-} 5% error between doing a lab determination of the heating value on a spot sample of the gas and an on- line (nearly continuous) monitor of the heating value, this results in a {+-} 50 BTU difference. On a station that has 50 MMCF per day at $2.50 per MCF or MMBTU, this is $125,000.00 worth of gas per day. Five percent of this is $6,250.00 per day. If a process chromatograph, $50,000 installed cost, is used to determine the energy content a pay out of less than 10 days is obtained on a 50 MMCF/day station. Most major interconnects have on- line BTU measurement of some sort today.

Kizer, P.E. [Applied Automation, Inc./Hartmann and Braun, Houston, TX (United States)

1995-12-01T23:59:59.000Z

412

Design and Performance Evaluation of an Hybrid Reservation-Polling MAC Protocol for Power-Line  

E-Print Network [OSTI]

channel. Moreover, by slightly reducing the system utilization, a target 1% packet loss ratio can be met remote electricity meter reading, energy management, appliance control and maintenance, home automation) is a quickly developing technology, aiming at the utilization of low-voltage power lines for the transmission

Tinnirello, Ilenia

413

On-line monitoring of incinerator emissions  

SciTech Connect (OSTI)

As part of efforts to develop an on-line emissions monitor to detect specific organic compounds for incinerators, the authors tested a Fourier transform infrared spectrometer (FTIR) coupled with a long-path cell (LPC). A mixture of toluene, chlorobenzene, 1,1,1-trichloroethane, and trichloroethylene with elemental ratio C:H:Cl = 3:3.1:0.9 was incinerated in a methane/air flame. The effluent was continuously passed through a heated long-path cell. Eleven target compounds were simultaneously analyzed: methane, toluene, chlorobenzene, 1,1,1-trichloroethane, trichloroethylene, benzene, ethylene, hydrogen chloride, carbon monoxide, carbon dioxide, and water. During the testing, the incinerator temperature and the excess air ratio were deliberately changed to simulate both complete and incomplete combustion conditions in the incinerator. Test results indicate that the FTIR/LPC system can successfully follow concentration changes in the emissions that are associated with the change in the incinerator operations. In addition to carbon monoxide, methane, ethylene, and benzene have been found to be major products of incomplete combustion of the mixture. In this paper, the authors also discuss problems related to obtaining representative calibration standards and to developing adequate methods for continuous monitoring of emissions.

Mao, Zhuoxiong; Demirgian, J.C.; Hwang, E.

1993-07-01T23:59:59.000Z

414

Second Line of Defense Spares Program  

SciTech Connect (OSTI)

During Fiscal Year 2012, a team from the Pacific Northwest National Laboratory (PNNL) conducted an assessment and analysis of the Second Line of Defense (SLD) Sustainability spare parts program. Spare parts management touches many aspects of the SLD Sustainability Program including contracting and integration of Local Maintenance Providers (LMP), equipment vendors, analyses and metrics on program performance, system state of health, and maintenance practices. Standardized spares management will provide better data for decisions during site transition phase and will facilitate transition to host country sustainability ownership. The effort was coordinated with related SLD Sustainability Program initiatives, including a configuration items baselining initiative, a metrics initiative, and a maintenance initiative. The spares study has also led to pilot programs for sourcing alternatives that include regional intermediate inventories and partnering agreements that leverage existing supply chains. Many partners from the SLD Sustainability program contributed to and were consulted in the course of the study. This document provides a description of the findings, recommendations, and implemented solutions that have resulted from the study.

Henderson, Dale L.; Holmes, Aimee E.; Muller, George; Mercier, Theresa M.; Brigantic, Robert T.; Perkins, Casey J.; Cooley, Scott K.; Thorsen, Darlene E.

2012-11-20T23:59:59.000Z

415

Slow sound in lined flow ducts  

E-Print Network [OSTI]

We consider the acoustic propagation in lined flow duct with a purely reactive impedance at the wall. This reacting liner has the capability to reduce the speed of sound, and thus to enhance the interaction between the acoustic propagation and the low Mach number flow ($M\\simeq0.3$). At the lower frequencies, there are typically 4 acoustic or hydrodynamic propagating modes, with 3 of them propagating in the direction of the flow. Above a critical frequency, there are only 2 propagating modes that all propagate in the direction of the flow. From the exact 2D formulation an approximate 1D model is developed to study the scattering of acoustic waves in a straight duct with varying wall impedance. This simple system, with a uniform flow and with a non-uniform liner impedance at the wall, permits to study the scattering between regions with different waves characteristics. Several situations are characterized to show the importance of negative energy waves, strong interactions between acoustic and hydrodynamic mod...

Auregan, Yves

2015-01-01T23:59:59.000Z

416

Monolithic torpedo bottle lining at Weirton Steel Corporation  

SciTech Connect (OSTI)

In late 1992 and early 1993 Weirton Steel burned through three torpedo bottles in a three-month period. To determine the cause of the burn throughs, a thorough review of bottle maintenance practices was initiated. Upon identification of contributing factors, changes in operating practices were made. In an effort to increase bottle reliability, lining trials were initiated. Among the trials, a monolithic lining was installed and this paper will discuss results of the lining to date.

Baker, R.; Griffith, E. [Weirton Steel Corp., WV (United States)

1996-12-31T23:59:59.000Z

417

Determination of age in forensic dentistry from cemental incremental lines  

E-Print Network [OSTI]

discrimination of incremental lines with accuracy and repeatability. Therefore, the purposes of this study are (1) to develop a technique for enhancing the incremen al lines n the dental cementum; (2) to evaluate the accuracy of age estimates based... economically applied to evaluate and count the incremental lines in the dental cementum. In this study nondemineralized cross-sections of human teeth were evaluated. This method was cnosen because the decalcification process is not only a time...

Sousa, Eliane Marques Duarte de

1987-01-01T23:59:59.000Z

418

DOE-EPRI On-Line Monitoring Implementation Guidelines  

SciTech Connect (OSTI)

Industry and EPRI experience at several plants has shown on-line monitoring to be very effective in identifying out-of-calibration instrument channels or indications of equipment-degradation problems. The EPRI implementation project for on-line monitoring has demonstrated the feasability of on-line monitoring at several participating nuclear plants. The results have been very enouraging, and substantial progress is anticipated in the coming years.

E. Davis, R. Bickford

2003-01-02T23:59:59.000Z

419

TRANSPORT OF WASTE SIMULANTS IN PJM VENT LINES  

SciTech Connect (OSTI)

The experimental work was conducted to determine whether there is a potential for waste simulant to transport or 'creep' up the air link line and contaminate the pulse jet vent system, and possibly cause long term restriction of the air link line. Additionally, if simulant creep occurred, establish operating parameters for washing down the line. The amount of the addition of flush fluids and mixer downtime must be quantified.

Qureshi, Z

2007-02-21T23:59:59.000Z

420

DOE-EPRI On-Line Monitoring Implementation Guidelines  

SciTech Connect (OSTI)

OAK B139 Industry and EPRI experience at several plants has shown on-line monitoring to be very effective in identifying out-of-calibration instrument channels or indications of equipment-degradation problems. The EPRI implementation project for on-line monitoring has demonstrated the feasibility of on-line monitoring at several participating nuclear plants. The results have been very encouraging, and substantial progress is anticipated in the coming years.

E. Davis; R. Bickford

2003-01-02T23:59:59.000Z

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


421

An Exact Algorithm for Power Grid Interdiction Problem with Line ...  

E-Print Network [OSTI]

late the problem of optimal interdiction of an electric power network as a ...... general, critical lines. .... “Co-optimization of generation unit commitment and.

2012-01-08T23:59:59.000Z

422

Historical Time Line and Information About the Hanford Site  

SciTech Connect (OSTI)

Historical time line of the Hanford Site spanning from 1940 through 1997, including photographs and other information regarding the town sites and living conditions.

Briggs Jr, David

2001-03-07T23:59:59.000Z

423

Emission Line Properties of the Large Bright Quasar Survey  

E-Print Network [OSTI]

We present measurements of the optical/UV emission lines for a large homogeneous sample of 993 quasars from the Large Bright Quasar Survey. Our largely automated technique accounts for continuum breaks and galactic reddening, and we perform multicomponent fits to emission line profiles, including the effects of blended iron emission, and of absorption lines both galactic and intrinsic. Here we describe the fitting algorithm and present the results of line fits to the LBQS sample, including upper limits to line equivalent widths when warranted. The distribution of measured line parameters, principally equivalent width and FWHM, are detailed for a variety of lines, including upper limits. We thus initiate a large-scale investigation of correlations between the high energy continuum and emission lines in quasars, to be extended to complementary samples using similar techniques. High quality, reproducible measurements of emission lines for uniformly selected samples will advance our understanding of active galaxies, especially in a new era of large surveys selected by a variety of complementary methods.

Karl Forster; Paul J. Green; Thomas L. Aldcroft; Marianne Vestergaard; Craig B. Foltz; Paul C. Hewett

2000-11-20T23:59:59.000Z

424

FLI-1 Flightless-1 and LET-60 Ras control germ line morphogenesis in C. elegans  

E-Print Network [OSTI]

Background: In the C. elegans germ line, syncytial germ line nuclei are arranged at the cortex of the germ line as they exit mitosis and enter meiosis, forming a nucleus-free core of germ line cytoplasm called the rachis. ...

Lu, Jiamiao; Dentler, William L., Jr; Lundquist, Erik A.

2008-05-16T23:59:59.000Z

425

2005 Double white lines on bills of Razorbill 103 DOUBLE WHITE LINES ON THE BILL OF THE  

E-Print Network [OSTI]

2005 Double white lines on bills of Razorbill 103 DOUBLE WHITE LINES ON THE BILL OF THE RAZORBILL.L., MUZAFFAR S.B. & JONES I.L. Lavers J.L., Muzaffar S.B. & Jones I.L. 2006. Double white lines on the bill Seabirds 7(3): 103-108. One of the diagnostic features of the Razorbill Alca torda is the distinct white

Jones, Ian L.

426

Situ soil sampling probe system with heated transfer line  

DOE Patents [OSTI]

The present invention is directed both to an improved in situ penetrometer probe and to a heated, flexible transfer line. The line and probe may be implemented together in a penetrometer system in which the transfer line is used to connect the probe to a collector/analyzer at the surface. The probe comprises a heater that controls a temperature of a geologic medium surrounding the probe. At least one carrier gas port and vapor collection port are located on an external side wall of the probe. The carrier gas port provides a carrier gas into the geologic medium, and the collection port captures vapors from the geologic medium for analysis. In the transfer line, a flexible collection line that conveys a collected fluid, i.e., vapor, sample to a collector/analyzer. A flexible carrier gas line conveys a carrier gas to facilitate the collection of the sample. A system heating the collection line is also provided. Preferably the collection line is electrically conductive so that an electrical power source can generate a current through it so that the internal resistance generates heat.

Robbat, Jr., Albert (Andover, MA)

2002-01-01T23:59:59.000Z

427

A mycological assessment of highly digestible protein sorghum lines.  

E-Print Network [OSTI]

inbred lines’ grain physical characteristics across environments .......................................................... 25 Table V Mean squares from ANOVA combined analysis of recombinant inbred lines based on seed hardness index... that limits the practical use of HD sorghums because the soft grain deteriorates more readily. The GMDC is ubiquitously distributed and negatively affects sorghum yield and overall grain quality particularly in warm and humid environments. The grain mold...

Portillo, Ostilio Rolando

2009-05-15T23:59:59.000Z

428

Pipe Lining and Renewal School Monday, January 26, 2015  

E-Print Network [OSTI]

Track F Pipe Lining and Renewal School Monday, January 26, 2015 Hilton Americas, Houston, Texas with their applications, capabilities and limitations. Includes pipe assessment and inspection requirements for selecting and inspection of pipe lining and renewal installations. Includes measurable specification and documentation

Huang, Haiying

429

THE MAXIMUM CAPACITY OF A LINE PLAN IS INAPPROXIMABLE  

E-Print Network [OSTI]

THE MAXIMUM CAPACITY OF A LINE PLAN IS INAPPROXIMABLE CHRISTINA PUHL AND SEBASTIAN STILLER Abstract a network, upper arc-capacities and a line pool. E-mail: puhl@math.tu-berlin.de, stiller of the European Commission under contract no. FP6-021235-2. 1 #12;2 CHRISTINA PUHL AND SEBASTIAN STILLER We

Nabben, Reinhard

430

Robotic Line Tracking Computer Science Department, Rowan University  

E-Print Network [OSTI]

the black line and a smaller number represented the white background.When a sensor detects it is over out on a light background. ·Front Wheel is mounted on a servo motor. ·Robot gets servo to pivot, effectively steering the robot. Infrared Sensors Servo Motor ·Infrared Sensors detect line. ·One sensor

Kay, Jennifer S.

431

Design unbiased estimation in line intersect sampling using segmented  

E-Print Network [OSTI]

Design unbiased estimation in line intersect sampling using segmented transects D A V I D L . R applications of line intersect sampling, transects consist of multiple, connected segments in a prescribed, suitably generalized to segmented transect designs. The relative efficiency and utility of segmented

432

15 Software Product Line Engineering with the UML: Deriving Products  

E-Print Network [OSTI]

15 Software Product Line Engineering with the UML: Deriving Products T. Ziadi and J.-M. Jézéquel Abstract Software product line engineering introduces two new dimensions into the traditional engineering of software-based systems: the variability modeling and the product derivation. The variability gathers

Paris-Sud XI, Université de

433

On-line construction of position heaps Gregory Kucherov  

E-Print Network [OSTI]

On-line construction of position heaps Gregory Kucherov Abstract We propose a simple linear-time on-line algorithm for constructing a po- sition heap for a string [EMOW11]. Our definition of position heap differs order of length. Our construction is based on classic suffix pointers and resembles the Ukkonen

Paris-Sud XI, Université de

434

From Agile Software Product Line Engineering Towards Software  

E-Print Network [OSTI]

construction of software applications using pre- developed assets. Agile software development (ASD) is another in this thesis: RQ1: How can software product line engineering and agile software development be combined? RQ2From Agile Software Product Line Engineering Towards Software Ecosystems Geir Kjetil Hanssen

Langseth, Helge

435

Power line harmonic radiation (PLHR) observed by the DEMETER spacecraft  

E-Print Network [OSTI]

Power line harmonic radiation (PLHR) observed by the DEMETER spacecraft F. Nemec,1,2 O. Santoli´k,3 January 2006; published 22 April 2006. [1] Results of a systematic survey of Power Line Harmonic Radiation from the electric power systems which are magnetically conjugated with the place of observation

Santolik, Ondrej

436

Power line harmonic radiation: A systematic study using DEMETER spacecraft  

E-Print Network [OSTI]

Power line harmonic radiation: A systematic study using DEMETER spacecraft F. Nemec a,b,*, O of a systematic survey of Power line harmonic radiation (PLHR) observed by the DEMETER spacecraft. DEME- TER frequency spacing corresponds well to the power system frequency at anticipated source locations. Moreover

Santolik, Ondrej

437

CANDEL: Product Line Based Dynamic Context Management for Pervasive Applications  

E-Print Network [OSTI]

, it is essential for computing applications to be context-aware. However, one of the major challenges the context as a dynamic product line composed of context primitives (CPs). Frame based software product line techniques are used together with OWL ontology to define CPs and to dynamically generate the current context

Liu, Xiaodong

438

Transthoracic Lines Infants and children undergoing open heart  

E-Print Network [OSTI]

physician. All lines should have either heparinized saline or D5W infusing. Change the dressing with sternal by side. Normal RA values are 1-7mmHg. Transduce one port; vasoactive infusions typically are in the other port. Avoid infusing other solutions with vasoactive infusions. The RA line may be used for continuous

Kay, Mark A.

439

Original article Comparison of resistance of various poultry lines  

E-Print Network [OSTI]

Original article Comparison of resistance of various poultry lines to infection by Salmonella to determine the susceptibility or resistance of 9 outbred experi- mental or commercial poultry lines concerning caecal carriage. poultry / genetic resistance I Salmonella / infection Résumé ― Comparaison

Paris-Sud XI, Université de

440

Probing stellar accretion with mid-infrared hydrogen lines  

E-Print Network [OSTI]

In this paper we investigate the origin of the mid-infrared (IR) hydrogen recombination lines for a sample of 114 disks in different evolutionary stages (full, transitional and debris disks) collected from the {\\it Spitzer} archive. We focus on the two brighter {H~{\\sc i}} lines observed in the {\\it Spitzer} spectra, the {H~{\\sc i}}(7-6) at 12.37$\\mu$m and the {H~{\\sc i}}(9-7) at 11.32$\\mu$m. We detect the {H~{\\sc i}}(7-6) line in 46 objects, and the {H~{\\sc i}}(9-7) in 11. We compare these lines with the other most common gas line detected in {\\it Spitzer} spectra, the {[Ne~{\\sc iii}]} at 12.81$\\mu$m. We argue that it is unlikely that the {H~{\\sc i}} emission originates from the photoevaporating upper surface layers of the disk, as has been found for the {[Ne~{\\sc iii}]} lines toward low-accreting stars. Using the {H~{\\sc i}}(9-7)/{H~{\\sc i}}(7-6) line ratios we find these gas lines are likely probing gas with hydrogen column densities of 10$^{10}$-10$^{11}$~cm$^{-3}$. The subsample of objects surrounded by ...

Rigliaco, Elisabetta; Duchene, G; Edwards, S; Ardila, D R; Grady, C; Mendigutía, I; Montesinos, B; Mulders, G D; Najita, J R; Carpenter, J; Furlan, E; Gorti, U; Meijerink, R; Meyer, M R

2015-01-01T23:59:59.000Z

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


441

Directional Routing over Orthogonal Lines: A Performance Evaluation  

E-Print Network [OSTI]

Directional Routing over Orthogonal Lines: A Performance Evaluation Invited Paper Bow-Nan Cheng of Nevada - Reno yuksem@cse.unr.edu Shivkumar Kalyanaraman ECSE Department Rensselaer Polytechnic Institute lines orthogonal to each other at each node, it is possible to provide over 98% connectivity while

Yuksel, Murat

442

Moving Toward Product Line Engineering in a Nuclear Industry Consortium  

E-Print Network [OSTI]

Moving Toward Product Line Engineering in a Nuclear Industry Consortium Sana Ben Nasr, Nicolas line engineering, variability mining 1. INTRODUCTION Nuclear power plants are some of the most.ben-nasr, nicolas.sannier, mathieu.acher, benoitbaudry}@inria.fr ABSTRACT Nuclear power plants are some of the most

Boyer, Edmond

443

absorption line quasars: Topics by E-print Network  

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

absorption line quasars First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Quasar Absorption Lines...

444

absorption line quasar: Topics by E-print Network  

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

absorption line quasar First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Quasar Absorption Lines...

445

Air Entrainment by Viscous Contact Lines Antonin Marchand1  

E-Print Network [OSTI]

Air Entrainment by Viscous Contact Lines Antonin Marchand1 , Tak Shing Chan2 , Jacco H. Snoeijer2) The entrainment of air by advancing contact lines is studied by plunging a solid plate into a very viscous liquid by orders of magnitude. Objects that impact on a liquid interface can entrain small bubbles of air

446

Theoretical X-ray Line Profiles from Colliding Wind Binaries  

E-Print Network [OSTI]

We present theoretical X-ray line profiles from a range of model colliding wind systems. In particular, we investigate the effects of varying the stellar mass-loss rates, the wind speeds, and the viewing orientation. We find that a wide range of theoretical line profile shapes is possible, varying with orbital inclination and phase. At or near conjunction, the lines have approximately Gaussian profiles, with small widths (HWHM ~ 0.1 v_infty) and definite blue- or redshifts (depending on whether the star with the weaker wind is in front or behind). When the system is viewed at quadrature, the lines are generally much broader (HWHM ~ v_infty), flat-topped and unshifted. Local absorption can have a major effect on the observed profiles - in systems with mass-loss rates of a few times 10^{-6} Msol/yr the lower energy lines (E wind of the primary. The orbital variation ...

Henley, D B; Pittard, J M

2003-01-01T23:59:59.000Z

447

Line graphs e contrazioni: un approccio rigoroso alla space syntax  

E-Print Network [OSTI]

The methods of the space syntax have been the subject of extensive discussion, and several techniques to identify the axis lines have been proposed. The space syntax can be represented in terms of line graph, a graphs defined on the edge of a given primary graph. By means of the line graph algorithms, a system of labels defined on the edges of the primary graph is transformed into a system of labels on the vertices of the line graph. The contraction of adjacent edges with the same label allows to build a more general graph than those generated with the methods of the space syntax. By means of the functions implemented in Mathematica is therefore possible to redefine the space syntax on any system of urban quantities (labels) and reproduce the results of the axial lines as a special case. As an example is discussed a possible application of the method to the urban noise analysis.

D'Autilia, Roberto

2015-01-01T23:59:59.000Z

448

[NeII] emission line profiles from photoevaporative disc winds  

E-Print Network [OSTI]

I model profiles of the [NeII] forbidden emission line at 12.81um, emitted by photoevaporative winds from discs around young, solar-mass stars. The predicted line luminosities (~ 1E-6 Lsun) are consistent with recent data, and the line profiles vary significantly with disc inclination. Edge-on discs show broad (30-40km/s) double-peaked profiles, due to the rotation of the disc, while in face-on discs the structure of the wind results in a narrower line (~10km/s) and a significant blue-shift (5-10km/s). These results suggest that observations of [NeII] line profiles can provide a direct test of models of protoplanetary disc photoevaporation.

R. D. Alexander

2008-09-01T23:59:59.000Z

449

Profiled spectral lines generated in the field of Kerr superspinars  

SciTech Connect (OSTI)

String Theory suggests existence of primordial Kerr superspinars, extremely compact objects with external spacetime described by the Kerr naked singularity geometry. The primordial Kerr superspinars have to be converted to a near-extreme black hole due to accretion, but they could survive to the era of highly redshifted quasars. We study the shape of the profiled spectral lines generated by radiating rings or the innermost parts of Keplerian discs orbiting the Kerr superspinars. Influence of the superspinar surface location on the profiled lines is also considered. We demonstrate strong difference of the character of the profiled lines generated by radiating rings for all values of the superspinar spin and all values of the inclination angles of the observer when compared to those generated in the field of Kerr black holes. For small and mediate inclination angles there are large quantitative differences in the extension and position of the lines. For large inclination angles even strong qualitative difference appears as the profiled lines have a clear doubled character. The smaller, redshifted region of the profiled line is related to the photons reaching the regions near the superspinar surface. Strong differences are obtained also for profiled lines generated by the innermost parts of Keplerian discs especially in the shape of the line. The influence of the superspinar surface location is reflected in the intermediate parts of the the profiled lines. The line profiles can give a clear signature of the presence of a Kerr superspinar and in principle enable estimates of its surface location since the signatures of the superspinar surface location are of different character as those corresponding to the presence of the black hole horizon.

Schee, Jan; Stuchlík, Zdenek, E-mail: jan.schee@fpf.slu.cz, E-mail: zdenek.stuchlik@fpf.slu.cz [Institute of Physics, Faculty of Philosophy and Science, Silesian University in Opava, Bezru?ovo nám. 13, Opava (Czech Republic)

2013-04-01T23:59:59.000Z

450

Effect of Contact Line Curvature on Solid-Fluid Surface Tensions Without Line Tension C. A. Ward* and Jiyu Wu  

E-Print Network [OSTI]

Effect of Contact Line Curvature on Solid-Fluid Surface Tensions Without Line Tension C. A. Ward neglected adsorption at the solid-liquid interface and its effect on the surface tension of this interface-liquid interface can be determined, as can the surface tensions of the solid-liquid and solid-vapor interfaces. DOI

Ward, Charles A.

451

Thermal Properties of Starch From New Corn Lines as Impacted by Environment and During Line Development  

SciTech Connect (OSTI)

The objectives of this research were to further characterize exotic by adapted corn inbreds by studying the impact of environment on their starch thermal properties, and investigating the development of starch thermal properties during kernel maturation by using differential scanning calorimetry (DSC). A method to expedite identification of unusual starch thermal traits was investigated by examining five corn kernels at a time, instead of one kernel, which the previous screening methods used. Corn lines with known thermal functions were blended with background starch (control) in ratios of unique starch to control starch, and analyzed by using DSC. Control starch was representative of typical corn starch. The values for each ratio within a mutant type were unique ({alpha} < 0.01) for most DSC measurements. These results supported the five-kernel method for rapidly screening large amounts of corn germplasm to identify unusual starch traits. The effects of 5 growing locations on starch thermal properties from exotic by adapted corn and Corn Belt lines were studied using DSC. The warmest location, Missouri, generally produced starch with greater gelatinization onset temperature (T{sub oG}), narrower range of gelatinization (R{sub G}), and greater enthalpy of gelatinization ({Delta}H{sub G}). The coolest location, Illinois, generally resulted in starch with lower T{sub oG}, wider R{sub G}, and lower {Delta}H{sub G}. Starch from the Ames 1 farm had thermal properties similar to those of Illinois, whereas starch from the Ames 2 farm had thermal properties similar to those of Missouri. The temperature at Ames 2 may have been warmer since it was located near a river; however, soil type and quality also were different. Final corn starch structure and function change during development and maturity. Thus, the changes in starch thermal properties during 5 stages of endosperm development from exotic by adapted corn and Corn Belt lines at two locations were studied by using DSC. The T{sub oG} tended to decrease during maturation of the kernel, whereas the {Delta}H{sub G} tended not to change. Retrogradation parameters did not vary greatly among days after pollination (DAP) and between locations. Genotypes were affected differently by environments and significant interactions were found between genotype, environment,and DAP.

Elizabeth M. Lenihan

2003-12-12T23:59:59.000Z

452

Stainless steel submerged arc weld fusion line toughness  

SciTech Connect (OSTI)

This effort evaluated the fracture toughness of austenitic steel submerged-arc weld (SAW) fusion lines. The incentive was to explain why cracks grow into the fusion line in many pipe tests conducted with cracks initially centered in SAWS. The concern was that the fusion line may have a lower toughness than the SAW. It was found that the fusion line, Ji. was greater than the SAW toughness but much less than the base metal. Of greater importance may be that the crack growth resistance (JD-R) of the fusion line appeared to reach a steady-state value, while the SAW had a continually increasing JD-R curve. This explains why the cracks eventually turn to the fusion line in the pipe experiments. A method of incorporating these results would be to use the weld metal J-R curve up to the fusion-line steady-state J value. These results may be more important to LBB analyses than the ASME flaw evaluation procedures, since there is more crack growth with through-wall cracks in LBB analyses than for surface cracks in pipe flaw evaluations.

Rosenfield, A.R.; Held, P.R.; Wilkowski, G.M. [Battelle, Columbus, OH (United States)

1995-04-01T23:59:59.000Z

453

Theoretical X-ray Line Profiles from Colliding Wind Binaries  

E-Print Network [OSTI]

We present theoretical X-ray line profiles from a range of model colliding wind systems. In particular, we investigate the effects of varying the stellar mass-loss rates, the wind speeds, and the viewing orientation. We find that a wide range of theoretical line profile shapes is possible, varying with orbital inclination and phase. At or near conjunction, the lines have approximately Gaussian profiles, with small widths (HWHM ~ 0.1 v_\\infty) and definite blue- or redshifts (depending on whether the star with the weaker wind is in front or behind). When the system is viewed at quadrature, the lines are generally much broader (HWHM ~ v_\\infty), flat-topped and unshifted. Local absorption can have a major effect on the observed profiles - in systems with mass-loss rates of a few times 10^{-6} Msol/yr the lower energy lines (E wind of the primary. The orbital variation of the line widths and shifts is reduced in a low inclination binary. The extreme case is a binary with i = 0 degrees, for which we would expect no line profile variation.

D. B. Henley; I. R. Stevens; J. M. Pittard

2003-06-23T23:59:59.000Z

454

Models of Forbidden Line Emission Profiles from Axisymmetric Stellar Winds  

E-Print Network [OSTI]

A number of strong infrared forbidden lines have been observed in several evolved Wolf-Rayet star winds, and these are important for deriving metal abundances and testing stellar evolution models. In addition, because these optically thin lines form at large radius in the wind, their resolved profiles carry an imprint of the asymptotic structure of the wind flow. This work presents model forbidden line profile shapes formed in axisymmetric winds. It is well-known that an optically thin emission line formed in a spherical wind expanding at constant velocity yields a flat-topped emission profile shape. Simulated forbidden lines are produced for a model stellar wind with an axisymmetric density distribution that treats the latitudinal ionization self-consistently and examines the influence of the ion stage on the profile shape. The resulting line profiles are symmetric about line centre. Within a given atomic species, profile shapes can vary between centrally peaked, doubly peaked, and approximately flat-topped in appearance depending on the ion stage (relative to the dominant ion) and viewing inclination. Although application to Wolf-Rayet star winds is emphasized, the concepts are also relevant to other classes of hot stars such as luminous blue variables and Be/B[e] stars.

Richard Ignace; Adam Brimeyer

2006-05-10T23:59:59.000Z

455

Methods and apparatus for reducing corrosion in refractory linings  

DOE Patents [OSTI]

Methods and apparatus are provided for reducing corrosion in a refractory lining of a liquid-containing vessel used in direct steelmaking processes. The vessel operates at between about 1600.degree. C. and about 1800.degree. C. and an oxygen partial pressure of about 10.sup.-12 atmospheres, creating slag which is rich in FeO. The refractory lining includes a significant level of chromium oxide (Cr.sub.2 O.sub.3), and has small interconnected pores which may be filled with a gas mixture having a higher total pressure and oxygen partial pressure than the total pressure and oxygen partial pressure associted with the liquid against the lining of the vessel. The gas mixture is forced through the pores of the lining so that the pores are continuously filled with the mixture. In this manner, the gas mixture creates a blanket which increases the oxygen partial pressure at the lining enough to maintain the chromium in the lining in a selected valence state in which the chromium has decreased solubility in the FeO slag, thereby reducing corrosion by the FeO and increasing the useful life of the refractory lining.

Poeppel, Roger B. (Glen Ellyn, IL); Greenberg, Sherman (Oak Lawn, IL); Diercks, Dwight R. (Plainfield, IL)

1987-01-01T23:59:59.000Z

456

Phase II beam lines at the National Synchrotron Light Source  

SciTech Connect (OSTI)

The expansion of the National Synchrotron Light Source has been funded by the US Department of Energy. The Phase II program consists of both increased conventional facilities and six new beam lines. In this paper, an overview of the six beam lines which will be constructed during Phase II is presented. For five of the lines special radiation sources are necessary and the designs of four of the devices are complete. The relevant parameters of the insertion devices under construction and development are presented.

Thomlinson, W.

1984-06-01T23:59:59.000Z

457

Oxygen line formation in 3D hydrodynamical model atmospheres  

E-Print Network [OSTI]

The formation of [O I], O I and OH lines in metal-poor stars has been studied by means of 3D hydrodynamical model atmospheres. For O I detailed 3D non-LTE calculations have been performed. While the influence of 3D model atmospheres is minor for [O I] and O I lines, the very low temperatures encountered at low metallicities have a drastic impact on the OH lines. As a result, the derived O abundances are found to be systematically overestimated in 1D analyses, casting doubts on the recent claims for a monotonic increase in [O/Fe] towards lower metallicities.

M. Asplund

2000-11-02T23:59:59.000Z

458

Balmer Absorption Lines in FeLoBALs  

E-Print Network [OSTI]

We discovered non-stellar Balmer absorption lines in two many-narrow-trough FeLoBALs (mntBALs) by the near-infrared spectroscopy with Subaru/CISCO. Presence of the non-stellar Balmer absorption lines is known to date only in the Seyfert galaxy NGC 4151, thus our discovery is the first cases for quasars. Since all known active galactic nuclei with Balmer absorption lines share characteristics, it is suggested that there is a population of BAL quasars which have unique structures at their nuclei or unique evolutionary phase.

K. Aoki; I. Iwata; K. Ohta; N. Tamura; M. Ando; M. Akiyama; G. Kiuchi; K. Nakanishi

2006-12-14T23:59:59.000Z

459

Line Strengths and Line Strength Gradients in Bulges along the Hubble Sequence  

E-Print Network [OSTI]

We present first results of a comprehensive survey of deep long-slit spectra along the minor axis of bulges of edge-on spiral galaxies. Our results indicate that stellar populations in bulges are fairly old and encompass a range of metallicities. The luminosity-weighted ages of bulges range from those found for cluster ellipticals to slightly ``younger'' (by up to only a few Gyr, however). Their $\\alpha$/Fe element ratio is typically supersolar, consistent with those found in giant ellipticals. The radial line-strength gradients in bulges correlate with bulge luminosity. Generally, these findings are more compatible with predictions of the ``dissipative collapse'' model than with those of the ``secular evolution'' model.

P. Goudfrooij; J. Gorgas; P. Jablonka

1999-10-01T23:59:59.000Z

460

Radiological engineering evaluation of the delay line air scrubber located at the Clinton P. Anderson Meson Physics Facility (LAMPF)  

E-Print Network [OSTI]

OF CONTENTS. . . . . 1v LIST OF FIGURES LIST OF TABLES . . . INTRODUCTION BACKGROUND . . . Vu THEORY Air Scrubber Prediction Spreadsheet. Retnoval Efficiency Calculation. Water Diagnostic Line . Air Sample Line HRS dome Air Sample Line.... . . . . . . . . . . Air Sample Line HRS dome Air Sample Line. . . . . . . . I 9 . . . . . . . 20 . . . . . . . 25 . . . . . . . 28 METHODS. . RESULTS . . Water Diagnostic Line Results. Air Sample Line Results. . HRS dome Air Sample Line Results . . Radiological...

Huneycutt, Scott Edward

1996-01-01T23:59:59.000Z

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


461

Complex Dynamics of Blackouts in Power Transmission Systems B. A. Carreras and V. E. Lynch  

E-Print Network [OSTI]

the loss of load due to transmission lines reaching their load limits but no line outages. The second type to a dynamic equilibrium. Blackouts are modeled by overloads and outages of transmission lines determined

462

Line-of-Credit to Term Loans (Connecticut)  

Broader source: Energy.gov [DOE]

CDA’s Line-of-Credit to Term Loans good for one year for capital expenditures, converting to a fully amortizing term loan. Funds may be used for building expansion, equipment, or IT upgrades.

463

Hydrodynamic analysis of mooring lines based on optical tracking experiments  

E-Print Network [OSTI]

of mooring lines on the global motions of a moored offshore platform. In the present study, an experimental investigation of the hydrodynamic characteristics of various mooring elements is implemented through free and forced oscillation tests. Since no direct...

Yang, Woo Seuk

2009-05-15T23:59:59.000Z

464

annihilation line emission: Topics by E-print Network  

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

lines Astrophysics (arXiv) Summary: We propose an emission mechanism of prompt gamma-ray bursts (GRBs) that can reproduce the observed non-thermal spectra with high radiative...

465

On-line hydraulic state prediction for water distribution systems  

E-Print Network [OSTI]

This paper describes and demonstrates a method for on?line hydraulic state prediction in urban water networks. The proposed method uses a Predictor?Corrector (PC) approach in which a statistical data?driven algorithm is ...

Whittle, Andrew

466

Secretary Chu Thanks Utility Staff and Line Workers For Their...  

Office of Environmental Management (EM)

move on to continue assisting other areas still recovering from the storm. Yesterday, Energy Secretary Steven Chu met with Pepco line workers in Maryland as they prepared to go...

467

Federal Line Management Oversight of Department of Energy Nuclear Facilities  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The Guide was developed in support of DOE O 226.1B to provide guidance that may be useful to DOE line management organizations in meeting the provisions of that order when applied to nuclear facilities.

2014-04-14T23:59:59.000Z

468

Worker Safety Training Inpsection Criteria, Approach and Lines...  

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

1.0 PURPOSE U.S. Department of Subject: Worker Safety Training HS: HSS CRAD 64-50 Inspection Criteria, Approach, Energy Rev: 0 and Lines of Inquiry Eff. Date: 071 1012009 Office of...

469

On-line Planning Simulation Scott D. Anderson  

E-Print Network [OSTI]

On-line Planning Simulation Scott D. Anderson Spelman College Atlanta, GA 30314-4399 anderson will be satis ed, and so forth. Nevertheless, such evaluation is critical to a scienti c understanding of how

Southern California, University of

470

ROTATING LINE CAMERAS: EPIPOLAR GEOMETRY AND SPATIAL SAMPLING  

E-Print Network [OSTI]

project 3D scenes on a cylindric sur- face, where one or multiple rotating sensor lines allow to compose for controlling this error, allowing to adjust the camera position- ing at the time of photo shooting. The report

471

Line search methods with variable sample size for unconstrained ...  

E-Print Network [OSTI]

Jun 27, 2011 ... Key words: stochastic optimization, line search, simulations, sample average ...... Utility of agent i for alternative j is given by. Ui,j = Vi,j + ?i,j,.

2011-06-27T23:59:59.000Z

472

Performance analysis for lateral-line-inspired sensor arrays  

E-Print Network [OSTI]

The lateral line is a critical component of the fish sensory system, found to affect numerous aspects of behavior including maneuvering in complex fluid environments, schooling, prey tracking, and environment mapping. This ...

Fernandez, Vicente I

2011-01-01T23:59:59.000Z

473

A framework for on-line simulation systems  

E-Print Network [OSTI]

Simulation has traditionally been used for off-line planning and design. The advent of computer integrated manufacturing and flexible manufacturing systems has increased interest in shop floor control systems that use simulation technology for real-time...

Drake, Glenn Richardson

1996-01-01T23:59:59.000Z

474

An atlas of synthetic line profiles of planetary nebulae  

E-Print Network [OSTI]

We have constructed a grid of photoionization models of spherical, elliptical and bipolar planetary nebulae. Assuming different velocity fields, we have computed line profiles corresponding to different orientations, slit sizes and positions. The atlas is meant both for didactic purposes and for the interpretation of data on real nebulae. As an application, we have shown that line profiles are often degenerate, and that recovering the geometry and velocity field from observations requires lines from ions with different masses and different ionization potentials. We have also shown that the empirical way to measure mass-weighted expansion velocities from observed line widths is reasonably accurate if considering the HWHM. For distant nebulae, entirely covered by the slit, the unknown geometry and orientation do not alter the measured velocities statistically. The atlas is freely accessible from internet. The Cloudy_3D suite and the associated VISNEB tool are available on request.

C. Morisset; G. Stasinska

2008-01-31T23:59:59.000Z

475

Federal Line Management Oversight of Department of Energy Nuclear Facilities  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The Guide was developed in support of DOE O 226.1B to provide guidance that may be useful to DOE line management organizations in meeting the provisions of that order when applied to nuclear facilities.

2013-04-04T23:59:59.000Z

476

Oxford Colleges On-line Reports for Tutorials  

E-Print Network [OSTI]

OxCORT Oxford Colleges On-line Reports for Tutorials Tutor Role Version 4.5 BSP Training TeamCORT..........................................................................5 Roles in OxCORT..................................................................................5 of Revision Class reports.......................................................8 Report states

Oxford, University of

477

A projective Simson line Geoff Smith, University of Bath  

E-Print Network [OSTI]

A projective Simson line Geoff Smith, University of Bath 15th October 2014 This is a preprint-profit making educational or research pur- poses. c G. C. Smith October 15 2014 Introduction Let ABC

Smith, Geoff

478

DOE Sustainability Reporting Open Line Help Call | Department...  

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

November 4, 2014 2:00PM to 3:00PM EST The Sustainability Performance Office (SPO) sponsors open line help calls to assist DOE sites and national laboratories with the annual...

479

DOE Sustainability Reporting Open Line Help Call | Department...  

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

30, 2014 2:00PM to 3:00PM EDT The Sustainability Performance Office (SPO) sponsors open line help calls to assist DOE sites and national laboratories with the annual sustainability...

480

DOE Sustainability Reporting Open Line Help Call | Department...  

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

23, 2014 2:00PM to 3:00PM EDT The Sustainability Performance Office (SPO) sponsors open line help calls to assist DOE sites and national laboratories with the annual sustainability...

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


481

Niwot Ridge CRN Station Up & On-Line.  

E-Print Network [OSTI]

Niwot Ridge CRN Station Up & On-Line. I made a decision after the Science Panel Review to put tree removal Wind Speed 3, terrain elevation change Solar Radiation 3, solar shading to west #12;

482

Emission Lines and the Spectral Energy Distributions of Quasars  

E-Print Network [OSTI]

Many years of study have failed to conclusively establish relations between a quasar's spectral energy distribution (SED) and the emission lines it is thought to produce. This is at least partially due to the lack of well-observed SEDs. We present initial results from a line--SED study for a sample of 43 quasars and active galaxies for which we have optical and ultra-violet spectra and far-infrared--X-ray SEDs. We present the results of tests for correlations between line equivalent widths and SED luminosity and slope parameters and compare these results to those from earlier studies. We find that the Baldwin effect is weaker when the luminosity is defined close to the ionising continuum of that line and conclude that the detailed SED is likely to be important in making further progress.

B. J. Wilkes; P. J. Green; S. Mathur; J. C. McDowell

1996-08-05T23:59:59.000Z

483

Department of Energy Finalizes Loan Guarantee for New Transmission...  

Office of Environmental Management (EM)

Nevada, improving grid reliability and efficiency. "As our country increases its use of alternative energy sources, new transmissions lines like the ON Line project will play a...

484

2,279 METERS BOUYANT POLYOLEFIN MOORING LINE  

E-Print Network [OSTI]

2,279 METERS BOUYANT POLYOLEFIN MOORING LINE 4,900 METERS NYLON LINE, CONTINUOUS 700 METERS KEO 1: DATE: DATE: MOORING: SCOPE: NOAA-PMEL-KE 1.4:1 TC5 METERS 700 METERS WIRE ROPE FAIRING TO 500 METERS TC10 METERS 50 METERS 25 METERS TC TC 75 METERS TC 100 METERS TP 150 METERS TC 200 METERS TC 300 METERS

485

Image-line voltage controlled oscillators and grating antennas  

E-Print Network [OSTI]

IMAGE-LINE VOLTAGE CONTROLLED OSCILLATORS AND GRATING ANTENNAS A Thesis by ALEXANDER MacDONALD KIRK Submitted to the Office of Graduate Studies of Texas ABM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1991 Major Subject: Electrical Engineering IMAGE-LINE VOLTAGE CONTROLLED OSCILLATORS AND GRATING ANTENNAS A Thesis by ALEXANDER MacDONALD KIRK Approved as to style and content by: Kai Chang (Chair of Committee) Robert D. Nevels...

Kirk, Alexander MacDonald

1991-01-01T23:59:59.000Z

486

Federal Line Management Oversight of Department of Energy Nuclear Facilities  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The purpose of this Guide is to provide U.S. Department of Energy (DOE) line management with guidance that may be useful to them in effectively and efficiently implementing the requirements of DOE O 226.1B, Implementation of Department of Energy Oversight Policy, date April 25, 2011, as applied to Federal line management of hazard category 1, 2, and 3 nuclear facilities.

2011-04-25T23:59:59.000Z

487

Asbestos-free brake-lining materials for hydrogenerators  

SciTech Connect (OSTI)

Three different asbestos-free materials currently considered as new lining materials for hydrogenerator brakes were tested and compared to the original asbestos lining. Results show that these substitutes not only vary greatly from the original material in terms of mechanical properties and physical characteristics but also exhibit significantly different performances in braking tests. Consequently, these new materials are not entirely suitable for the intended application.

Lalonde, S.; Lanteigne, J. [Hydro-Quebec, Varennes, Quebec (Canada)

1995-11-01T23:59:59.000Z

488

PI Control of Gene Expression in Tumorous Cell Lines  

E-Print Network [OSTI]

3 HT29 cell line data for starved and then fed 20% FBS group (Group 1), starved with no FBS group (Group 2), and no starvation group (Group 3) for the genes JUN, MYC, and EGR1......................................................... 15 4... Normalized HEK cell line data for starved and then fed 20% FBS group (Group 1), starved with no FBS group (Group 2), and no starvation group (Group 3) for the genes JUN, MYC, and EGR1........................................ 16 5 Normalized HT29 cell...

Mendonca, Rouella J.

2010-01-16T23:59:59.000Z

489

Magnetic error analysis of recycler pbar injection transfer line  

SciTech Connect (OSTI)

Detailed study of Fermilab Recycler Ring anti-proton injection line became feasible with its BPM system upgrade, though the beamline has been in existence and operational since year 2000. Previous attempts were not fruitful due to limitations in the BPM system. Among the objectives are the assessment of beamline optics and the presence of error fields. In particular the field region of the permanent Lambertson magnets at both ends of R22 transfer line will be scrutinized.

Yang, M.J.; /Fermilab

2007-06-01T23:59:59.000Z

490

Device For Trapping Laser Pulses In An Optical Delay Line  

DOE Patents [OSTI]

A device for maintaining a high-energy laser pulse within a recirculating optical delay line for a period time to optimize the interaction of the pulse with an electron beam pulse train comprising closely spaced electron micropulses. The delay line allows a single optical pulse to interact with many of the electron micropulses in a single electron beam macropulse in sequence and for the introduction of additional optical pulses to interact with the micropulses of additional electron beam macropulses. The device comprises a polarization-sensitive beam splitter for admitting an optical pulse to and ejecting it from the delay line according to its polarization state, a Pockels cell to control the polarization of the pulse within the delay line for the purpose of maintaining it within the delay line or ejecting it from the delay line, a pair of focusing mirrors positioned so that a collimated incoming optical pulse is focused by one of them to a focal point where the pulse interacts with the electron beam and then afterwards the pulse is recollimated by the second focusing mirror, and a timing device which synchronizes the introduction of the laser pulse into the optical delay line with the arrival of the electron macropulse at the delay line to ensure the interaction of the laser pulse with a prescribed number of electron micropulses in sequence. In a first embodiment of the invention, the principal optical elements are mounted with their axes collinear. In a second embodiment, all principal optical elements are mounted in the configuration of a ring.

Yu, David U. L. (Rancho Palos Verdes, CA); Bullock, Donald L. (Los Angeles, CA)

1997-12-23T23:59:59.000Z

491

Generating X-ray lines from annihilating dark matter  

E-Print Network [OSTI]

We propose different scenarios where a keV dark matter annihilates to produce a monochromatic signal. The process is generated through the exchange of a light scalar of mass of order 300 keV - 50 MeV coupling to photon through loops or higher dimensional operators. For natural values of the couplings and scales, the model can generate a gamma-ray line which can fit with the recently identified 3.5 keV X-ray line.

Emilian Dudas; Lucien Heurtier; Yann Mambrini

2014-05-08T23:59:59.000Z

492

EUV emission lines and diagnostics observed with Hinode/EIS  

E-Print Network [OSTI]

Quiet Sun and active region spectra from the Hinode/EIS instrument are presented, and the strongest lines from different temperature regions discussed. A list of emission lines recommended to be included in EIS observation studies is presented based on analysis of blending and diagnostic potential using the CHIANTI atomic database. In addition we identify the most useful density diagnostics from the ions covered by EIS.

P. R. Young; G. Del Zanna; H. E. Mason; K. P. Dere; E. Landi; M. Landini; G. A. Doschek; C. M. Brown; J. L. Culhane; L. K. Harra; T. Watanabe; H. Hara

2007-08-14T23:59:59.000Z

493

Line Density Indice as an alternative to MK process  

E-Print Network [OSTI]

73 broadband optical spectra of dwarf stars later than F0 have been obtained from the Nearby Stars Project website. The number of absorption lines is computed for each spectrum between 6000 and 6200 Angstrom. A correlation is found between the density of lines K$\\lambda$ and the spectral type. This method is independent of calibration process, does not require high resolution or high signal to noise data and does not make use of a large library of standard spectra.

M. Kuassivi

2009-12-31T23:59:59.000Z

494

Ionization energy shift of characteristic K x-ray lines from high-Z materials for plasma diagnostics  

SciTech Connect (OSTI)

The energy of the characteristic x-rays emitted by high atomic number atoms in a plasma that contains energetic electrons depends on the atom's ionization. For tungsten, the ionization energy shift of the L-lines has recently been used to diagnose the plasma's ionization; the change in energy of a K-line has been measured for iridium and observed for ytterbium. Here, we present detailed computations of the ionization energy shift to K-lines of these and an additional element, dysprosium; for these atoms, some K-lines nearly coincide in energy with K-edges of slightly lower Z atoms so that a change in transmission behind a K-edge filter betrays a change in energy. The ionization energy shift of such high-energy K-lines may enable a unique diagnostic when the plasma is inside an otherwise opaque enclosure such as hohlraums used on the National Ignition Facility.

S?abkowska, K.; Szyma?ska, E.; Polasik, M. [Faculty of Chemistry, Nicholas Copernicus University, 87-100 Toru? (Poland)] [Faculty of Chemistry, Nicholas Copernicus University, 87-100 Toru? (Poland); Pereira, N. R. [Ecopulse, Inc., 7844 Vervain Ct, Springfield, Virginia 22152 (United States)] [Ecopulse, Inc., 7844 Vervain Ct, Springfield, Virginia 22152 (United States); Rzadkiewicz, J. [National Centre for Nuclear Research, 05-400 Otwock (Poland)] [National Centre for Nuclear Research, 05-400 Otwock (Poland); Seely, J. F. [Artep, Inc., 2922 Excelsior Springs Ct, Ellicott, Maryland 21042 (United States)] [Artep, Inc., 2922 Excelsior Springs Ct, Ellicott, Maryland 21042 (United States); Weber, B. V.; Schumer, J. W. [Naval Research Laboratory, Washington, DC 20375 (United States)] [Naval Research Laboratory, Washington, DC 20375 (United States)

2014-03-15T23:59:59.000Z

495

Materials research and beam line operation utilizing NSLS  

SciTech Connect (OSTI)

MATRIX, a participating research team of Midwest x-ray scattering specialists, continues to operate beam line X-18A at NSLS. Operations of this line now provides state-of-the-art capabilities to a wide range of people in the Materials Science and Engineering research community. Improvements of the beam line continue to be a focus of MATRIX. Throughout this past year the emphasis has been shifting towards improvement in user friendly'' aspects. Simplified control operations and a shift to single-user personal computer has been a major part of the effort. Over the past year the full 242 operational days were utilized. Beam line test and evaluation consumed 21 days with eight MATRIX groups combining to use 170 days. General user demand for use of the beam line continues to be strong and three groups were provided 51 operating days. Research production has been growing as NSLS and the beam line become a more stable type of operation. For 1990 the MATRIX group published nine articles. To data for 1991 the same group has published, submitted, or has in preparation twelve articles. Among the milestones achieved last year on MATRIX member obtained the first data from a new ultra high vacuum chamber with low temperature capability. This is a unique capability at NSLS. Another member demonstrated grazing incidence small angle x-ray scattering capability for kinetic studies of film growth.

Liedl, G.L.

1991-10-01T23:59:59.000Z

496

Materials research and beam line operation utilizing NSLS. Progress report  

SciTech Connect (OSTI)

MATRIX, a participating research team of Midwest x-ray scattering specialists, continues to operate beam line X-18A at NSLS. Operations of this line now provides state-of-the-art capabilities to a wide range of people in the Materials Science and Engineering research community. Improvements of the beam line continue to be a focus of MATRIX. Throughout this past year the emphasis has been shifting towards improvement in ``user friendly`` aspects. Simplified control operations and a shift to single-user personal computer has been a major part of the effort. Over the past year the full 242 operational days were utilized. Beam line test and evaluation consumed 21 days with eight MATRIX groups combining to use 170 days. General user demand for use of the beam line continues to be strong and three groups were provided 51 operating days. Research production has been growing as NSLS and the beam line become a more stable type of operation. For 1990 the MATRIX group published nine articles. To data for 1991 the same group has published, submitted, or has in preparation twelve articles. Among the milestones achieved last year on MATRIX member obtained the first data from a new ultra high vacuum chamber with low temperature capability. This is a unique capability at NSLS. Another member demonstrated grazing incidence small angle x-ray scattering capability for kinetic studies of film growth.

Liedl, G.L.

1991-10-01T23:59:59.000Z

497

Materials research and beam line operation utilizing NSLS. Progress report  

SciTech Connect (OSTI)

MATRIX, a participating research team of Midwest x-ray scattering specialists, continues to operate beam line X-18A at NSLS. Operations of this line now provides state-of-the-art capabilities to a wide range of people in the Materials Science and Engineering research community. Improvements of the beam line continue to be a focus of MATRIX. Throughout this past year the emphasis has been shifting towards improvement in ``user friendly`` aspects. Simplified control operations and a shift to single-user personal computer has been a major part of the effort. Over the past year all 232 operational days were fully utilized. Beam line tests coupled with MATRIX members combined to use 284 days. General user demand for use of the beam line continues to be strong and four groups were provided 48 operating days. Research production has been growing as NSLS and the beam line become a more stable type of operation. For 1992 the MATRIX group published six articles. To date, for 1993 the same group has published, submitted, or has in preparation nine articles. Recent research milestones include: the first quantitative structural information on the as-quenched and early stages of decomposition of supersaturated Al-Li alloys; the first quantitative diffuse scattering measurements on a complex system (Co substitute for Cu YBCO superconductor); demonstration of capabilities of a new UHV surface diffraction chamber with in-situ characterization and temperature control (30-1300K); feasibility of phasing structure factors in a quasicrystal using multiple Bragg scattering.

Liedl, G.L.

1993-06-01T23:59:59.000Z

498

Rehab permits desert line to run at original pressures  

SciTech Connect (OSTI)

An extensive inspection and rehabilitation program on a 34-in. desert pipeline in gas-condensate service has restored the line to full operating pressures and ensured the line's active service life for at least 20 years. Since Agip Oil Co. Ltd. built the 133-km pipeline in 1972 using API 5L Grade X-60, it has suffered six known failures. There has been no single cause of the failures. As a consequence of the failures, the line has been progressively down rated from the original operating pressure of 700 psig to 500 psig. So that the line could again be operated between 650 and 700 psig, two options have been considered: extensive study and investigation leading to inspection and replacement of suspect pipe: total replacement of the line. These options were evaluated from economic and safety points of view. A major consideration was that the line will be operating in its current manner for only the next 2 years before changing to dry-gas transportation. The first option was therefore considered viable. The paper discusses the failure mechanisms, the history of hydrogen-induced cracking, the 1989 failure, survey results, calculation of acceptable pressures, and the rehabilitation program.

Kurdi, A.M.; Abougfeefa, M.S. (Agip Oil Co. Ltd., Tripoli (Libyan Arab Jamahiriya)); Denney, A.K. (John Brown Engineering and Constructors Ltd., London (United Kingdom))

1993-07-26T23:59:59.000Z

499

Optical emission line monitor with background observation and cancellation  

DOE Patents [OSTI]

A fiber optics based optical emission line monitoring system is provided in which selected spectral emission lines, such as the sodium D-line emission in coal combustion, may be detected in the presence of interferring background or blackbody radiation with emissions much greater in intensity than that of the emission line being detected. A bifurcated fiber optic light guide is adapted at the end of one branch to view the combustion light which is guided to a first bandpass filter, adapted to the common trunk end of the fiber. A portion of the light is reflected back through the common trunk portion of the fiber to a second bandpass filter adapted to the end of the other branch of the fiber. The first filter bandpass is centered at a wavelength corresponding to the emission line to be detected with a bandwidth of about three nanometers (nm). The second filter is centered at the same wavelength but having a width of about 10 nm. First and second light detectors are located to view the light passing through the first and second filters respectively. Thus, the second detector is blind to the light corresponding to the emission line of interest detected by the first detector and the difference between the two detector outputs is uniquely indicative of the intensity of only the combustion flame emission of interest. This instrument can reduce the effects of interferring blackbody radiation by greater than 20 dB.

Goff, David R. (Star City, WV); Notestein, John E. (Morgantown, WV)

1986-01-01T23:59:59.000Z

500

Optical emission line monitor with background observation and cancellation  

DOE Patents [OSTI]

A fiber optics based optical emission line monitoring system is provided in which selected spectral emission lines, such as the sodium D-line emission in coal combustion, may be detected in the presence of interferring background or blackbody radiation with emissions much greater in intensity than that of the emission line being detected. A bifurcated fiber optic light guide is adapted at the end of one branch to view the combustion light which is guided to a first bandpass filter, adapted to the common trunk end of the fiber. A portion of the light is reflected back through the common trunk portion of the fiber to a second bandpass filter adapted to the end of the other branch of the fiber. The first filter bandpass is centered at a wavelength corresponding to the emission line to be detected with a bandwidth of about three nanometers (nm). The second filter is centered at the same wavelength but having a width of about 10 nm. First and second light detectors are located to view the light passing through the first and second filters respectively. Thus, the second detector is blind to the light corresponding to the emission line of interest detected by the first detector and the difference between the two detector outputs is uniquely indicative of the intensity of only the combustion flame emission of interest. This instrument can reduce the effects of interfering blackbody radiation by greater than 20 dB.

Goff, D.R.; Notestein, J.E.

1985-01-04T23:59:59.000Z