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Note: This page contains sample records for the topic "optical ground wire" 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

Sizing of Overhead Ground Wires for Lightning  

Science Conference Proceedings (OSTI)

Overhead ground wires, or shield wires, are placed on transmission lines as air terminals for lightning strikes to shield the phase conductors from direct strikes. Although of short duration, lightning strikes to ground wires may result in significant damage. Utilities are increasingly using optical fiber ground wires (OPGWs), and severe damage to the OPGWs could result in failure of the communication link. There is renewed interest in the dimensioning and testing of ground wires for improved ...

2012-12-12T23:59:59.000Z

2

Microsoft Word - CX-Fairview-Rogue_GroundWire_WEB.doc  

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

, 2010 , 2010 REPLY TO ATTN OF: KEP-Alvey SUBJECT: Environmental Clearance Memorandum Harold Grappe Project Manager - TELP-TTP-3 Proposed Action: Replacement of overhead ground wire in the last and most southerly mile of the Fairview-Rogue #1 230-kV transmission line leading into the Rogue Substation PP&A Project No.: 1736 Categorical Exclusion Applied (from Subpart D, 10 C.F.R. Part 1021): B1.3 Routine maintenance activities...for structures, rights-of-way, infrastructures such as roads, equipment...routine maintenance activities, corrective...are required to maintain... infrastructures...in a condition suitable for a facility to be used for its designed purpose. Location: The project is located in Curry County, Oregon, in the Alvey District. The project

3

Remote Sensing of Cloud Optical Properties from Ground-Based Measurements of Transmittance: A Feasibility Study  

Science Conference Proceedings (OSTI)

The authors present a retrieval technique for the inference of cloud optical depth from data obtained by a ground-based multichannel radiometer for use in climate-related studies. The basic steps of the analysis procedure are considered, ...

E. Leontieva; K. Stamnes

1996-11-01T23:59:59.000Z

4

Estimations of Cloud Optical Thickness from Ground-Based Measurements of Incoming Solar Radiation in the Arctic  

Science Conference Proceedings (OSTI)

A technique for evaluation of cloud optical thickness (plant-parallel, homogeneous layer) from ground-based measurements of incoming solar irradiance using a simple radiation model is introduced. The sensitivities of downward and upward fluxes of ...

E. Leontyeva; K. Stamnes

1994-04-01T23:59:59.000Z

5

Superconducting wire  

DOE Patents (OSTI)

This invention consists of a method of producing superconducting wire by drawing a glass fiber with a melted powder of a superconducting wire inside the glass tube. After drawing, the glass fiber is heated to crystallize the superconducting compound. The diameter of the superconducting wires is controlled by the rate at which the glass fiber s are drawn from the glass tube.

Day, D.E.; Petrovic, J.J.; Gac, F.D.; Ray, C.S.

1991-03-05T23:59:59.000Z

6

Optical Communication System for Remote Monitoring and Adaptive Control of Distributed Ground Sensors Exhibiting Collective Intelligence  

Science Conference Proceedings (OSTI)

Comprehensive management of the battle-space has created new requirements in information management, communication, and interoperability as they effect surveillance and situational awareness. The objective of this proposal is to expand intelligent controls theory to produce a uniquely powerful implementation of distributed ground-based measurement incorporating both local collective behavior, and interoperative global optimization for sensor fusion and mission oversight. By using a layered hierarchal control architecture to orchestrate adaptive reconfiguration of autonomous robotic agents, we can improve overall robustness and functionality in dynamic tactical environments without information bottlenecks. In this concept, each sensor is equipped with a miniaturized optical reflectance modulator which is interactively monitored as a remote transponder using a covert laser communication protocol from a remote mothership or operative. Robot data-sharing at the ground level can be leveraged with global evaluation criteria, including terrain overlays and remote imaging data. Information sharing and distributed intelli- gence opens up a new class of remote-sensing applications in which small single-function autono- mous observers at the local level can collectively optimize and measure large scale ground-level signals. AS the need for coverage and the number of agents grows to improve spatial resolution, cooperative behavior orchestrated by a global situational awareness umbrella will be an essential ingredient to offset increasing bandwidth requirements within the net. A system of the type described in this proposal will be capable of sensitively detecting, tracking, and mapping spatial distributions of measurement signatures which are non-stationary or obscured by clutter and inter- fering obstacles by virtue of adaptive reconfiguration. This methodology could be used, for example, to field an adaptive ground-penetrating radar for detection of underground structures in urban environments and to detect chemical species concentrations in migrating plumes. Given is our research in these areas and a status report of our progress.

Cameron, S.M.; Stantz, K.M.; Trahan, M.W.; Wagner, J.S.

1998-11-01T23:59:59.000Z

7

Wire chamber  

DOE Patents (OSTI)

A wire chamber or proportional counter device, such as Geiger-Mueller tube or drift chamber, improved with a gas mixture providing a stable drift velocity while eliminating wire aging caused by prior art gas mixtures. The new gas mixture is comprised of equal parts argon and ethane gas and having approximately 0.25% isopropyl alcohol vapor.

Atac, Muzaffer (Wheaton, IL)

1989-01-01T23:59:59.000Z

8

Seasonal Variation of Aerosol Direct Radiative Forcing and Optical Properties Estimated from Ground-Based Solar Radiation Measurements  

Science Conference Proceedings (OSTI)

The surface direct radiative forcing and optical properties of aerosols have been analyzed from a ground-based solar radiation measurement, which was made under clear-sky conditions in Tsukuba, Japan, over two years from April 1997 to March 1999. ...

Tomoaki Nishizawa; Shoji Asano; Akihiro Uchiyama; Akihiro Yamazaki

2004-01-01T23:59:59.000Z

9

PHYSICAL REVIEW A VOLUME 41, NUMBER 3 1 FEBRUARY 1990 Optically driven spin nutations in the ground state of atomic sodium  

E-Print Network (OSTI)

PHYSICAL REVIEW A VOLUME 41, NUMBER 3 1 FEBRUARY 1990 Optically driven spin nutations in the ground superposition of the magnetic substates which evolves un- der the combined influence of the magnetic and optical situation is analyzed where two states are sublevels of an electronic ground state. On the other hand, we

Suter, Dieter

10

Associated ground-based observations of optical aurorae and discrete whistler waves  

SciTech Connect

Discrete VLF wave emissions in association with auroral light intensity fluctuations have been recorded at L = 4 during simultaneous operation of a broadband VLF receiver and a low light level TV system. The correlated wave-particle interaction events are interpreted as being typical examples of the electron cyclotron resonance process responsible for the precipitation of energetic electrons in the vicinity of the plasmapause. A range of delay times between the correlated VLF wave and the optical signals, coupled with the frequency versus time characteristics of the VLF wave emissions, is consistent with the electron cyclotron source region being randomly located within 8,000 km of the equatorial plane. The events are shown to be triggered by ducted whistler mode waves that originate from the opposite hemisphere to that of the station at which the observations are made. Events characterized by VLF waves of rising tone are presumed to occur in a region of enhanced plasma density commonly observed within the plasma trough. It is proposed that this region is responsible for ducting the VLF waves from the source to ground.

Hansen, H.J.; Scourfield, M.W.J. (Univ. of Natal, Durban (South Africa))

1990-01-01T23:59:59.000Z

11

Ground-Based Solar Absorption FTIR Spectroscopy: Characterization of Retrievals and First Results from a Novel Optical Design Instrument at a New NDACC Complementary Station  

Science Conference Proceedings (OSTI)

The authors describe the optical design of a high-resolution Fourier Transform Spectrometer (FTS), which serves as the primary instrument at the University of Toronto Atmospheric Observatory (TAO). The FTS is dedicated to ground-based infrared ...

A. Wiacek; J. R. Taylor; K. Strong; R. Saari; T. E. Kerzenmacher; N. B. Jones; D. W. T. Griffith

2007-03-01T23:59:59.000Z

12

Precision wire feeder for small diameter wire  

SciTech Connect

A device for feeding small diameter wire having a diameter less than 0.04 mm (16 mil) to a welding station includes a driving wheel for controllably applying a non-deforming driving force to the wire to move the free end of the wire towards the welding station; and a tension device such as a torque motor for constantly applying a reverse force to the wire in opposition to the driving force to keep the wire taut.

Brandon, Eldon D. (Albuquerque, NM); Hooper, Frederick M. (Albuquerque, NM); Reichenbach, Marvin L. (Albuquerque, NM)

1992-01-01T23:59:59.000Z

13

Precision wire feeder for small diameter wire  

DOE Patents (OSTI)

A device for feeding small diameter wire having a diameter less than 0.04 mm (16 mil) to a welding station includes a driving wheel for controllably applying a non-deforming driving force to the wire to move the free end of the wire towards the welding station; and a tension device such as a torque motor for constantly applying a reverse force to the wire in opposition to the driving force to keep the wire taut. 1 figure.

Brandon, E.D.; Hooper, F.M.; Reichenbach, M.L.

1992-08-11T23:59:59.000Z

14

Investigations of the Absorption Properties of Near-Ground Aerosol by the Methods of Optical-Acoustic Spectrometry and Diff...  

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

Investigations of the Absorption Properties of Investigations of the Absorption Properties of Near-Ground Aerosol by the Methods of Optical-Acoustic Spectrometry and Diffuse Extinction V. S. Kozlov, M. V. Panchenko, A. B. Tikhomirov, and B. A. Tikhomirov Institute of Atmospheric Optics Tomsk, Russia Introduction Aerosol absorption is an important factor in the formation of non-selective radiation extinction in the visible wavelength range, and plays a great role in solving many radiative and climatic problems. The principal absorbing substance in atmospheric aerosol is soot (crystal carbon), which strongly affects the atmospheric transparency, albedo of clouds, and snow cover. The non-selective absorption by finely dispersed soot aerosol is considered to be one of the most plausible reasons for the appearance of

15

Guide for Transmission Line Grounding  

Science Conference Proceedings (OSTI)

Electrical utilities have a duty to provide effective grounding for managing steady-state and fault currents, whether near a large generating station or at a remote distribution pole ground. For transmission lines, this imperative is usually met with investment in overhead ground wires and grounding electrodes. Effective grounding at each tower improves reliability8212by providing low path impedance to lightning strokes8212and contributes to safety. However, the fundamental physical parameters in ground ...

2007-12-20T23:59:59.000Z

16

Superconducting wires  

SciTech Connect

The requirement of high critical current density has prompted extensive research on ceramic processing of high-T/sub c/ superconductors. An overview of wire fabrication techniques and the limitations they impose on component design will be presented. The effects of processing on microstructure and critical current density will also be discussed. Particle alignment has been observed in extruded samples which is attributed to high shear stresses during plastic forming. Composites of superconductor and silver in several configurations have been made with little deleterious effect on the superconducting properties. 35 refs., 2 figs., 1 tab.

Lanagan, M.T.; Poeppel, R.B.; Singh, J.P.; Dos Santos, D.I.; Lumpp, J.K.; Dusek, J.T.; Goretta, K.C.

1988-06-01T23:59:59.000Z

17

Scaling Properties of Aerosol Optical Thickness Retrieved from Ground-Based Measurements  

Science Conference Proceedings (OSTI)

Statistical scale-by-scale analysis, for the first time, has been applied to the aerosol optical thickness (AOT) retrieved from the Multi-Filter Rotating Shadowband Radiometer (MFRSR) network. The MFRSR data were collected in September 2000 from ...

Mikhail D. Alexandrov; Alexander Marshak; Brian Cairns; Andrew A. Lacis; Barbara E. Carlson

2004-05-01T23:59:59.000Z

18

History of Residential Grounding  

Science Conference Proceedings (OSTI)

This report describes the development of residential electrical service grounding practices in the United States. The report focuses on the history of the National Electrical Code (NEC), which prescribes standards for wiring practices in residences, including grounding of the building electrical service.

2002-09-19T23:59:59.000Z

19

Precision wire feeder for small diameter wire  

DOE Patents (OSTI)

This invention is comprised of a device for feeding small diameter wire having a diameter less than .04 mm (16 mil) to a welding station which includes a driving wheel for controllably applying a non-deforming driving force to the wire to move the free end of the wire towards the welding station; and a tension device such as a torque motor for constantly applying a reverse force to the wire in opposition to the driving force to keep the wire taut. 1 fig.

Brandon, E.D.; Hooper, F.M.; Reichenbach, M.L.

1990-12-31T23:59:59.000Z

20

Precision Wire Forming  

SciTech Connect

An air-operated semiautomatic wire former was designed and built at Mound Laboratory to form specific types of electrodes to be molded in plastic parts. Use of the semiautomatic wire former eliminates the sliding action of tooling on the surface of the electrode wire to be formed and properly aligns the crimped electrode surfaces to within required tolerance ranges. These are difficulties which are characteristic of conventional wire forming tooling. Interchangeable tooling is provided with the semiautomatic wire former for forming electrode wires in one plane; secondary tooling was designed and bulit for forming electrode wires in two planes; and a special series of tooling was designed for forming more complex wire forms.

Weeks, J. E.; Osborne, J. M.

1970-08-07T23:59:59.000Z

Note: This page contains sample records for the topic "optical ground wire" 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

Wire-inhomogeneity detector  

DOE Patents (OSTI)

A device for uncovering imperfections in electrical conducting wire, particularly superconducting wire, by detecting variations in eddy currents. Eddy currents effect the magnetic field in a gap of an inductor, contained in a modified commercial ferrite core, through which the wire being tested is passed. A small increase or decrease in the amount of conductive material, such as copper, in a fixed cross section of wire will unbalance a bridge used to measure the impedance of the inductor, tripping a detector and sounding an alarm.

Gibson, G.H.; Smits, R.G.; Eberhard, P.H.

1982-08-31T23:59:59.000Z

22

Optical memory  

DOE Patents (OSTI)

Optical memory comprising: a semiconductor wire, a first electrode, a second electrode, a light source, a means for producing a first voltage at the first electrode, a means for producing a second voltage at the second electrode, and a means for determining the presence of an electrical voltage across the first electrode and the second electrode exceeding a predefined voltage. The first voltage, preferably less than 0 volts, different from said second voltage. The semiconductor wire is optically transparent and has a bandgap less than the energy produced by the light source. The light source is optically connected to the semiconductor wire. The first electrode and the second electrode are electrically insulated from each other and said semiconductor wire.

Mao, Samuel S; Zhang, Yanfeng

2013-07-02T23:59:59.000Z

23

Tapered capillary optics  

DOE Patents (OSTI)

A metal or glass wire is etched with great precision into a very narrowly tapering cone which has the shape of the desired final capillary-optics bore. By controlling the rate of removal of the wire from an etchant bath, a carefully controlled taper is produced. A sensor measures the diameter of the wire as it leaves the surface of the etchant. This signal is used for feedback control of the withdrawal speed. The etched wire undergoes a treatment to produce an extremely low surface-roughness. The etched and smoothed wire is coated with the material of choice for optimizing the reflectivity of the radiation being focused. This could be a vacuum evaporation, sputtering, CVD or aqueous chemical process. The coated wire is either electroplated, built up with electroless plating, or encapsulated in a polymer cylinder such as epoxy to increase the diameter of the wire for easier handling and greater robustness. During this process, the wire is vertically oriented and tensioned to assure that the wire is absolutely straight. The coated and electroformed wire is bonded to a flat, rigid substrate and is then periodically segmented by cutting or etching a series of narrow slits or grooves into the wire. The wire is vertically oriented and tensioned during the bonding process to assure that it is straight. The original wire material is then chemically etched away through the slits or otherwise withdrawn to leave the hollow internal bore of the final tapered-capillary optical element.

Hirsch, Gregory (365 Talbot Ave., Pacifica, CA 94044)

1998-01-01T23:59:59.000Z

24

Wire-driven Parallel Robot: Permitting Collisions Between Wires  

Science Conference Proceedings (OSTI)

In spatial designs of wire-driven parallel robots, collisions between wires by limiting platform trajectories. The common practice for avoiding collisions between wires is by limiting the moving platform trajectories. However, as opposed to rigid ... Keywords: cable robot, collision, tangling, wire robot, workspace

Yonatan Wischnitzer; Nir Shvalb; Moshe Shoham

2008-09-01T23:59:59.000Z

25

Optics  

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

Optics A computer program to calculate the optical properties of glazing systems and laminates. The program can be used to construct new laminates from existing components and...

26

Aerosol Optical Properties in the Iranian Region Obtained by Ground-Based Solar Radiation Measurements in the Summer Of 1991  

Science Conference Proceedings (OSTI)

Solar radiation measurements were made using sun photometers and pyranometers during 31 May-7 June 1991 at several places in Iran and during 12 June-17 September 1991 at a fixed place, Bushehr, Iran. In the first period the aerosol optical ...

Teruyuki Nakajima; Tadahiro Hayasaka; Akiko Higurashi; Gen Hashida; Naser Moharram-Nejad; Yahya Najafi; Hamzeh Valavi

1996-08-01T23:59:59.000Z

27

Use of Optical Microscopy to Examine Crystallite Nucleation and Growth in Thermally Annealed Plasma Enhanced Chemical Vapor Deposition and Hot Wire Chemical Vapor Deposition a-Si:H Films  

DOE Green Energy (OSTI)

We report a simple method to investigate crystallite nucleation and growth in stepwise, thermally annealed plasma enhanced chemical vapor deposition and hot wire chemical vapor deposition a-Si:H films. By confining film thicknesses to the range 500-4000 {angstrom}, optical microscopy in the reflection mode can be used to readily detect crystallites in the thermally annealed a-Si:H lattice. Measurements of the crystallite density versus annealing time for identically prepared films of different thickness show that the crystallite nucleation rate is smaller for thinner films, suggesting that crystallite nucleation is homogeneous, in agreement with previous results. A comparison of film nucleation rates with those obtained by other methods on identically prepared films shows excellent agreement, thus establishing the validity of the current technique. The potential effect of impurity (oxygen) incorporation during the stepwise annealing in air is shown not to affect crystallite nucleation and growth, in that SIMS oxygen profiles for stepwise versus continuous annealing show not only similar impurity profiles but also similar bulk impurity densities.

Mahan, A. H.; Dabney, M. S.; Reedy, Jr R. C.; Molina, D.; Ginley, D. S.

2012-05-15T23:59:59.000Z

28

Wire brush fastening device  

DOE Patents (OSTI)

A fastening device is provided which is a variation on the conventional nut and bolt. The bolt has a longitudinal axis and threading helically affixed thereon along the longitudinal axis. A nut having a bore extending therethrough is provided. The bore of the nut has a greater diameter than the diameter of the bolt so the bolt can extend through the bore. An array of wire bristles are affixed within the bore so as to form a brush. The wire bristles extend inwardly from the bore and are constructed and arranged of the correct size, length and stiffness to guide the bolt within the bore and to restrain the bolt within the bore as required. A variety of applications of the wire brush nut are disclosed, including a bolt capture device and a test rig apparatus.

Meigs, Richard A. (East Concord, NY)

1995-01-01T23:59:59.000Z

29

Wire brush fastening device  

DOE Patents (OSTI)

A fastening device is provided which is a variation on the conventional nut and bolt. The bolt has a longitudinal axis and threading helically affixed thereon along the longitudinal axis. A nut having a bore extending therethrough is provided. The bore of the nut has a greater diameter than the diameter of the bolt so the bolt can extend through the bore. An array of wire bristles are affixed within the bore so as to form a brush. The wire bristles extend inwardly from the bore and are constructed and arranged of the correct size, length and stiffness to guide the bolt within the bore and to restrain the bolt within the bore as required. A variety of applications of the wire brush nut are disclosed, including a bolt capture device and a test rig apparatus.

Meigs, R.A.

1993-08-31T23:59:59.000Z

30

Wire brush fastening device  

DOE Patents (OSTI)

A fastening device is provided which is a variation on the conventional nut and bolt. The bolt has a longitudinal axis and threading helically affixed thereon along the longitudinal axis. A nut having a bore extending therethrough is provided. The bore of the nut has a greater diameter than the diameter of the bolt so the bolt can extend through the bore. An array of wire bristles are affixed within the bore so as to form a brush. The wire bristles extend inwardly from the bore and are constructed and arranged of the correct size, length and stiffness to guide the bolt within the bore and to restrain the bolt within the bore as required. A variety of applications of the wire brush nut are disclosed, including a bolt capture device and a test rig apparatus. 13 figs.

Meigs, R.A.

1995-09-19T23:59:59.000Z

31

Enhanced Diffusional Processes in Wire Bonding  

Science Conference Proceedings (OSTI)

Presentation Title, Enhanced Diffusional Processes in Wire Bonding ... there is a tremendous need for implementation of thinner wires in wire boning processes.

32

Ground surface temperature reconstructions: Using in situ estimates for thermal conductivity acquired with a fiber-optic distributed thermal perturbation sensor  

Science Conference Proceedings (OSTI)

We have developed a borehole methodology to estimate formation thermal conductivity in situ with a spatial resolution of one meter. In parallel with a fiber-optic distributed temperature sensor (DTS), a resistance heater is deployed to create a controlled thermal perturbation. The transient thermal data is inverted to estimate the formation's thermal conductivity. We refer to this instrumentation as a Distributed Thermal Perturbation Sensor (DTPS), given the distributed nature of the DTS measurement technology. The DTPS was deployed in permafrost at the High Lake Project Site (67 degrees 22 minutes N, 110 degrees 50 minutes W), Nunavut, Canada. Based on DTPS data, a thermal conductivity profile was estimated along the length of a wellbore. Using the thermal conductivity profile, the baseline geothermal profile was then inverted to estimate a ground surface temperature history (GSTH) for the High Lake region. The GSTH exhibits a 100-year long warming trend, with a present-day ground surface temperature increase of 3.0 {+-} 0.8 C over the long-term average.

Freifeld, B.M.; Finsterle, S.; Onstott, T.C.; Toole, P.; Pratt, L.M.

2008-10-10T23:59:59.000Z

33

An Investigation of Wire Breaks Created during Copper Wire ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2010. Symposium, Failure Analysis and Prevention. Presentation Title, An Investigation of Wire...

34

Improved wire chamber  

DOE Patents (OSTI)

An improved gas mixture for use with proportional counter devices, such as Geiger-Mueller tubes and drift chambers. The improved gas mixture provides a stable drift velocity while eliminating wire aging caused by prior art gas mixtures. The new gas mixture is comprised of equal parts argon and ethane gas and having approximately 0.25% isopropyl alcohol vapor. 2 figs.

Atac, M.

1987-05-12T23:59:59.000Z

35

Wire Bonder: Kulicke and Soffa Model 4526  

Science Conference Proceedings (OSTI)

Wire Bonder: Kulicke and Soffa Model 4526. Description: CORAL Name: Wire Bonder. Needs Description. Scientific Opportunities / Applications: ...

2013-05-23T23:59:59.000Z

36

PHYSICAL REVIEW A VOLUME 46, NUMBER 1 1 JULY 1992 Optically excited Zeeman coherences in atomic ground states: Nuclear-spin effects  

E-Print Network (OSTI)

=+ in Na, I =$ in Cs). The 46- J =+ electronic ground state consists then of two degen- erate substates ground states: Nuclear-spin effects Dieter Suter Instituteof are usually interpreted in terms of the J=1/2 ground state, treating the electronic ground state

Suter, Dieter

37

Superconducting magnet wire  

DOE Patents (OSTI)

A superconducting tape or wire with an improved critical field is formed of alternating layers of a niobium-containing superconductor such as Nb, NbTi, Nb.sub.3 Sn or Nb.sub.3 Ge with a thickness in the range of about 0.5-1.5 times its coherence length, supported and separated by layers of copper with each copper layer having a thickness in the range of about 170-600 .ANG..

Schuller, Ivan K. (Woodridge, IL); Ketterson, John B. (Evanston, IL); Banerjee, Indrajit (San Jose, CA)

1986-01-01T23:59:59.000Z

38

Wire detecting apparatus and method  

DOE Patents (OSTI)

This invention is comprised of an apparatus and method that combines a signal generator and a passive signal receiver to detect and record the path of partially or completely concealed electrical wiring without disturbing the concealing surface. The signal generator applies a series of electrical pulses to the selected wiring of interest. The applied pulses create a magnetic field about the wiring that can be detected by a coil contained within the signal receiver. An audible output connected to the receiver and driven by the coil reflects the receiver`s position with respect to the wiring. The receiver`s audible signal is strongest when the receiver is directly above the wiring and the long axis of the receiver`s coil is parallel to the wiring. A marking means is mounted on the receiver to mark the location of the wiring as the receiver is directed over the wiring`s concealing surface. Numerous marks made on various locations of the concealing surface will trace the path of the wiring of interest.

Kronberg, J.W.

1991-12-31T23:59:59.000Z

39

Dual wire welding torch and method  

SciTech Connect

A welding torch includes a nozzle with a first welding wire guide configured to orient a first welding wire in a first welding wire orientation, and a second welding wire guide configured to orient a second welding wire in a second welding wire orientation that is non-coplanar and divergent with respect to the first welding wire orientation. A method of welding includes moving a welding torch with respect to a workpiece joint to be welded. During moving the welding torch, a first welding wire is fed through a first welding wire guide defining a first welding wire orientation and a second welding wire is fed through a second welding wire guide defining a second welding wire orientation that is divergent and non-coplanar with respect to the first welding wire orientation.

Diez, Fernando Martinez (Peoria, IL); Stump, Kevin S. (Sherman, IL); Ludewig, Howard W. (Groveland, IL); Kilty, Alan L. (Peoria, IL); Robinson, Matthew M. (Peoria, IL); Egland, Keith M. (Peoria, IL)

2009-04-28T23:59:59.000Z

40

Optical  

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

Optical Optical fiber-based single-shot picosecond transient absorption spectroscopy Andrew R. Cook a͒ and Yuzhen Shen Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, USA ͑Received 27 January 2009; accepted 29 May 2009; published online 17 July 2009͒ A new type of single-shot transient absorption apparatus is described based on a bundle of optical fibers. The bundle contains 100 fibers of different lengths, each successively giving ϳ15 ps longer optical delay. Data are collected by imaging light from the exit of the bundle into a sample where it is overlapped with an electron pulse or laser excitation pulse, followed by imaging onto a charge coupled device ͑CCD͒ detector where the intensity of light from each fiber is measured simultaneously. Application to both ultrafast pump-probe spectroscopy and pulse radiolysis is demonstrated. For pulse

Note: This page contains sample records for the topic "optical ground wire" 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

Glass Drawing for Wire Arrays  

The size of the wafer is limited only by how much fiber is bundled prior to fusion. Since the wire is not actually being drawn, ...

42

high strength steel wire products  

Science Conference Proceedings (OSTI)

This Table of Contents is from Metallurgy, Processing, and Applications of Metal Wires--State of the Art Technology and Challenges for the Future published by...

43

Improved superconducting magnet wire  

DOE Patents (OSTI)

This invention is directed to a superconducting tape or wire composed of alternating layers of copper and a niobium-containing superconductor such as niobium of NbTi, Nb/sub 3/Sn or Nb/sub 3/Ge. In general, each layer of the niobium-containing superconductor has a thickness in the range of about 0.05 to 1.5 times its coherence length (which for Nb/sub 3/Si is 41 A) with each copper layer having a thickness in the range of about 170 to 600 A. With the use of very thin layers of the niobium composition having a thickness within the desired range, the critical field (H/sub c/) may be increased by factors of 2 to 4. Also, the thin layers of the superconductor permit the resulting tape or wire to exhibit suitable ductility for winding on a magnet core. These compositions are also characterized by relatively high values of critical temperature and therefore will exhibit a combination of useful properties as superconductors.

Schuller, I.K.; Ketterson, J.B.

1983-08-16T23:59:59.000Z

44

A Laser-Wire System at the ATF Extraction Line  

Science Conference Proceedings (OSTI)

A new laser-wire (LW) system has been installed at the ATF extraction line at KEK, Tsukuba. The system aims at a micron-scale laser spot size and employs a mode-locked laser system. The purpose-built interaction chamber, light delivery optics, and lens systems are described, and the first results are presented.

Boogert, S.T.; Blair, G.; Boorman, G.; Bosco, A.; Deacon, L.; Driouichi, C.; Karataev, P.; /Royal Holloway, U. of London; Kamps, T.; /BESSY, Berlin; Delerue, N.; Dixit, S.; Foster, B.; Gannaway, F.; Howell, D.F.; Qureshi, M.; Reichold, A.; Senanayake, R.; /Oxford U.; Aryshev, A.; Hayano, H.; Kubo, K.; Terunuma, N.; Urakawa, J.; /KEK, Tsukuba /Liverpool U. /Cockcroft Inst. Accel. Sci. Tech. /SLAC

2007-02-12T23:59:59.000Z

45

Grounding intentionality  

E-Print Network (OSTI)

In this thesis, I argue that current attempts to ground intentionality face one of two challenges. Either the grounding feature of intentionality will be itself intentional or the grounding feature is disparate in nature from the representational capacity of an intentional mental state and therefore no connection between the two can be taken to exist. I examine two current accounts of intentionality and the features they utilize to ground it. I maintain that both views fall prey to one or both of the objections I raise. I conclude that any account of intentionality will need to meet both of these challenges in order to be counted successful.

Huizenga Steven R

2004-01-01T23:59:59.000Z

46

Torpedo Speciality Wire Inc | Open Energy Information  

Open Energy Info (EERE)

Torpedo Speciality Wire Inc Jump to: navigation, search Name Torpedo Speciality Wire Inc Place Rocky Mount, North Carolina Zip 27804 Sector Solar Product North Carolina-based maker...

47

Ignition and spread of electrical wire fires  

E-Print Network (OSTI)

pilot source, placed in the center of the wire sample to initiate ignition, which heats the wire through both convection (major) and radiation (

Huang, Xinyan

2012-01-01T23:59:59.000Z

48

Diamond Wire Technology LLC | Open Energy Information  

Open Energy Info (EERE)

Wire Technology LLC Jump to: navigation, search Name Diamond Wire Technology LLC Place Colorado Springs, Colorado Zip 80916 Sector Solar Product US-based manufacturer of diamond...

49

Plasma chemistry in wire chambers  

SciTech Connect

The phenomenology of wire chamber aging is discussed and fundamentals of proportional counters are presented. Free-radical polymerization and plasma polymerization are discussed. The chemistry of wire aging is reviewed. Similarities between wire chamber plasma (>1 atm dc-discharge) and low-pressure rf-discharge plasmas, which have been more widely studied, are suggested. Construction and use of a system to allow study of the plasma reactions occurring in wire chambers is reported. A proportional tube irradiated by an {sup 55}Fe source is used as a model wire chamber. Condensable species in the proportional tube effluent are concentrated in a cryotrap and analyzed by gas chromatography/mass spectrometry. Several different wire chamber gases (methane, argon/methane, ethane, argon/ethane, propane, argon/isobutane) are tested and their reaction products qualitatively identified. For all gases tested except those containing methane, use of hygroscopic filters to remove trace water and oxygen contaminants from the gas resulted in an increase in the average molecular weight of the products, consistent with results from low-pressure rf-discharge plasmas. It is suggested that because water and oxygen inhibit polymer growth in the gas phase that they may also reduce polymer deposition in proportional tubes and therefore retard wire aging processes. Mechanistic implications of the plasma reactions of hydrocarbons with oxygen are suggested. Unresolved issues in this work and proposals for further study are discussed.

Wise, J.

1990-05-01T23:59:59.000Z

50

Overhead Transmission Line Lightning and Grounding Reference Book 2012  

Science Conference Proceedings (OSTI)

In North America and many other parts of the world, lightning remains the primary cause of transmission line outages, momentary interruptions, and reliability and maintenance problems. The lightning performance of transmission lines may be improved by applying overhead ground wires, providing a low impedance connection to ground, and selecting appropriate insulation levels for the phase conductors. The success of these measures is not always ...

2012-12-12T23:59:59.000Z

51

Strongly coupled copper plasma generated by underwater electrical wire explosion  

Science Conference Proceedings (OSTI)

A number of theoretical approaches to the analysis of the parameters of a discharge channel consisting of strongly coupled plasma generated in the process of underwater electrical wire explosion are presented. The analysis is based on experimental results obtained from discharges employing Cu wire. The obtained experimental data included electrical measurements and optical observations from which information about the dynamics of the water flow was extrapolated. Numerical calculation based on a 1D magnetohydrodynamic model was used to simulate the process of underwater wire explosion. A wide range conductivity model was applied in this calculation and good agreement with a set of experimental data was obtained. A method of determining the average temperature of the discharge channel based on this model and experimental results is proposed, and the limits of this method's applicability are discussed.

Grinenko, A.; Gurovich, V.Tz.; Saypin, A.; Efimov, S.; Krasik, Ya.E.; Oreshkin, V.I. [Physics Department, Technion, 32000 Haifa (Israel); Institute of High Current Electronics, SB RAN, 634055 Tomsk (Russian Federation)

2005-12-15T23:59:59.000Z

52

Ground Water  

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

Water Nature Bulletin No. 408-A February 27, 1971 Forest Preserve District of Cook County George W. Dunne, President Roland F. Eisenbeis, Supt. of Conservation GROUND WATER We take...

53

Plasma arc torch with coaxial wire feed  

SciTech Connect

A plasma arc welding apparatus having a coaxial wire feed. The apparatus includes a plasma arc welding torch, a wire guide disposed coaxially inside of the plasma arc welding torch, and a hollow non-consumable electrode. The coaxial wire guide feeds non-electrified filler wire through the tip of the hollow non-consumable electrode during plasma arc welding. Non-electrified filler wires as small as 0.010 inches can be used. This invention allows precision control of the positioning and feeding of the filler wire during plasma arc welding. Since the non-electrified filler wire is fed coaxially through the center of the plasma arc torch's electrode and nozzle, the wire is automatically aimed at the optimum point in the weld zone. Therefore, there is no need for additional equipment to position and feed the filler wire from the side before or during welding.

Hooper, Frederick M (Albuquerque, NM)

2002-01-01T23:59:59.000Z

54

Preparation of Aluminum Nickel Nanosized Powders by Pulsed Wire ...  

Science Conference Proceedings (OSTI)

With the direct heating of wire by the current, the whole wire evaporates within a few microseconds and then condenses in inert gas. Wound wires with two or...

55

Laser Cladding with Hybrid Hot Wire - Programmaster.org  

Science Conference Proceedings (OSTI)

Presentation Title, Laser Cladding with Hybrid Hot Wire ... The Laser Hot Wire process is used to deposit solid and cored wire products onto hydraulic shafts and...

56

Wire Making Techniques - HTS Coated Conductors - Fact Sheet ...  

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

Wire Making Techniques - HTS Coated Conductors - Fact Sheet Wire Making Techniques - HTS Coated Conductors - Fact Sheet Wire Making Techniques - HTS Coated Conductors - Fact Sheet...

57

Electrical wire insulation and electromagnetic coil  

DOE Patents (OSTI)

An electromagnetic coil for high temperature and high radiation application in which glass is used to insulate the electrical wire. A process for applying the insulation to the wire is disclosed which results in improved insulation properties.

Bich, George J. (Penn Hills, PA); Gupta, Tapan K. (Monroeville, PA)

1984-01-01T23:59:59.000Z

58

Polarimetry and Schlieren diagnostics of underwater exploding wires  

SciTech Connect

Nondisturbing laser-probing polarimetry (based on the Faraday and Kerr effects) and Schlieren diagnostics were used in the investigation of underwater electrical wire explosion. Measuring the polarization plane rotation angle of a probing laser beam due to the Faraday effect allows one to determine an axially resolved current flowing through the exploding wire, unlike commonly used current probes. This optical method of measuring current yields results that match those obtained using a current viewing resistor within an accuracy of 10%. The same optical setup allows simultaneous space-resolved measurement of the electric field using the Kerr effect. It was shown that the maximal amplitude of the electric field in the vicinity of the high-voltage electrode is approx80 kV/cm and that the radial electric field is <1 MV/cm during the wire explosion. Finally, it was shown that the use of Schlieren diagnostics allows one to obtain qualitatively the density distribution behind the shock wave front, which is important for the determination of the energy transfer from the discharge channel to the generated water flow.

Fedotov-Gefen, A. V.; Krasik, Ya. E. [Physics Department, Technion, 32000 Haifa (Israel)

2009-11-01T23:59:59.000Z

59

PARALLEL ION BEAM PROFILE SCAN USING LASER WIRE  

Science Conference Proceedings (OSTI)

We report on the world s first experiment of a parallel profile scan of the hydrogen ion (H-) beam using a laser wire system. The system was developed at the superconducting linac of the Spallation Neutron Source (SNS) accelerator complex. The laser wire profile scanner is based on a photo-detachment process and therefore can be conducted on an operational H- beam in a nonintrusive manner. The parallel profile scanning system makes it possible to simultaneously measure profiles of the 1-MW neutron production H- beam at 9 different locations of the linac by using a single light source. This paper describes the design, optical system and software platform development, and measurement results of the parallel profile scanning system.

Liu, Yun [ORNL; Aleksandrov, Alexander V [ORNL; Huang, Chunning [ORNL; Long, Cary D [ORNL; Dickson, Richard W [ORNL

2013-01-01T23:59:59.000Z

60

Method and apparatus for laying wire arrays  

DOE Patents (OSTI)

Wire arrays (11) having a continuous wire (12) which is formed into a predetermined pattern and adhered to a backing material or substrate (13) are fabricated by applying adhesive material (16a, 16b) along opposite edge portions (17, 18) of the substrate, positioning a row of winding spools (21) along each of the edge portions and repeatedly extending the wire between and around successive spools at the opposite edge portions. The wound wire is then traveled along each spool toward the substrate and into contact with the adhesive. The spools are then removed and a coating of hardenable material (54) is applied to secure the wound wire to the substrate. Tension in the wire is relieved prior to contact of the wire with the adhesive and a small amount of slack is introduced into the wire before the final coating step. Mechanism (32) is provided for lifting the spools away from the substrate without disturbing the wound wire. The method and apparatus enable manufacture of precisely configured wire arrays without complex or costly equipment and do not require structural alterations in the substrate for the purpose of accommodating to fabrication equipment.

Horowitz, Seymour M. (6525 Swainland Dr., Oakland, CA 94611); Nesbitt, Dale D. (1712 Marin Ave., Berkeley, CA 94707)

1986-01-01T23:59:59.000Z

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


61

Spectroscopic research of underwater electrical wire explosion  

Science Conference Proceedings (OSTI)

Results of spectroscopic research in the visible range of light of the radiation generated by underwater electrical wire explosions (UEWE) are presented. A pulsed generator with an output voltage of {approx}110 kV, current of {approx}70 kA, and rise time of {approx}60 ns was used for electrical explosion of Cu wires 0.1 mm in diameter and 50 mm in length. It was shown that UEWE is not governed by the 'polarity' effect, which plays an important role in electrical wire explosions in vacuum. The results of detailed space- and time-resolved spectroscopic measurements show that the radiation spectrum differs significantly of the spectrum expected from the exploding wire. A model is suggested based on the formation of a few {mu}m 'water' plasma layer in the vicinity of the exploding wire plasma which efficiently absorbs the radiation of the exploding wire.

Fedotov, A.; Sheftman, D.; Gurovich, V. Tz.; Efimov, S.; Bazilitski, G.; Krasik, Ya. E. [Physics Department, Technion-Israel Institute of Technology, 32000 Haifa (Israel); Oreshkin, V. I. [Institute of High Current Electronics, RAS, Tomsk (Russian Federation)

2008-08-15T23:59:59.000Z

62

Mixed and Dynamic Response of Hot Wires and Cold Wires and Measurements of Turbulence Statistics  

Science Conference Proceedings (OSTI)

Hot wires respond to temperature as well as to velocity, whereas cold wires respond to velocity as well as to temperature. The static and dynamic response characteristics are summarized and it is shown that the frequency transfer functions for ...

S. E. Larsen; J. Hojstrup; C. W. Fairall

1986-06-01T23:59:59.000Z

63

High Strength Gold Wire for Microelectronics Miniaturization ...  

ISU and Ames Laboratory researchers have developed a high strength gold wire for use in microelectronics that can maintain its electrical and mechanical properties ...

64

ORNL superconducting wire yields unprecedented performance |...  

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

ORNL | News | News Releases | 2013 SHARE Media Contact: Morgan McCorkle Communications 865.574.7308 ORNL superconducting wire yields unprecedented performance This figure shows the...

65

Thin californium-containing radioactive source wires  

SciTech Connect

A cermet wire includes at least 1% californium-252 and is characterized by a diameter of no more than 0.0225 inch.

Gross, Ian G (Clinton, TN); Pierce, Larry A (Kingston, TN)

2012-01-03T23:59:59.000Z

66

Hot-Wire Deposition of Hydrogenated Nanocrystalline SiGe Films for Thin-Film Si Based Solar Cells  

E-Print Network (OSTI)

Hot-Wire Deposition of Hydrogenated Nanocrystalline SiGe Films for Thin-Film Si Based Solar Cells bandgap absorber in an a-Si/a-SiGe/nc-SiGe(nc- Si) triple-junction solar cell due to its higher optical investigations of nc-SiGe:H thin films made by hot-wire chemical vapor deposition (HWCVD) with a coil

Deng, Xunming

67

Improved Superconducting Wire for Wind Generators: Superconducting Wires for Direct-Drive Wind Generators  

SciTech Connect

REACT Project: Brookhaven National Laboratory will develop a low-cost superconducting wire that could be used in high-power wind generators. Superconducting wire currently transports 600 times more electric current than a similarly sized copper wire, but is significantly more expensive. Brookhaven National Laboratory will develop a high-performance superconducting wire that can handle significantly more electrical current, and will demonstrate an advanced manufacturing process that has the potential to yield a several-fold reduction in wire costs while using a using negligible amount of rare earth material. This design has the potential to make a wind turbine generator lighter, more powerful, and more efficient, particularly for offshore applications.

2012-01-01T23:59:59.000Z

68

Lansce Wire Scanning Diagnostics Device Mechanical Design  

SciTech Connect

The Accelerator Operations & Technology Division at Los Alamos National Laboratory operates a linear particle accelerator which utilizes 110 wire scanning diagnostics devices to gain position and intensity information of the proton beam. In the upcoming LANSCE improvements, 51 of these wire scanners are to be replaced with a new design, up-to-date technology and off-the-shelf components. This document outlines the requirements for the mechanical design of the LANSCE wire scanner and presents the recently developed linac wire scanner prototype. Additionally, this document presents the design modifications that have been implemented into the fabrication and assembly of this first linac wire scanner prototype. Also, this document will present the design for the second, third, and fourth wire scanner prototypes being developed. Prototypes 2 and 3 belong to a different section of the particle accelerator and therefore have slightly different design specifications. Prototype 4 is a modification of a previously used wire scanner in our facility. Lastly, the paper concludes with a plan for future work on the wire scanner development.

Rodriguez Esparza, Sergio [Los Alamos National Laboratory; Batygin, Yuri K. [Los Alamos National Laboratory; Gilpatrick, John D. [Los Alamos National Laboratory; Gruchalla, Michael E. [Los Alamos National Laboratory; Maestas, Alfred J. [Los Alamos National Laboratory; Pillai, Chandra [Los Alamos National Laboratory; Raybun, Joseph L. [Los Alamos National Laboratory; Sattler, F. D. [Los Alamos National Laboratory; Sedillo, James Daniel [Los Alamos National Laboratory; Smith, Brian G. [Los Alamos National Laboratory

2011-01-01T23:59:59.000Z

69

LANSCE-R WIRE-SCANNER SYSTEM  

SciTech Connect

The National Instruments cRIO platform is used for the new LANSCE-R wire-scanner systems. All wire-scanner electronics are integrated into a single BiRa BiRIO 4U cRIO chassis specifically designed for the cRIO crate and all interface electronics. The BiRIO chassis, actuator and LabVIEW VIs provide a complete wire-scanner system integrated with EPICS. The new wire-scanner chassis includes an 8-slot cRIO crate with Virtex-5 LX 110 FPGA and Power-PC real-time controller, the LANL-developed cRIO 2-axis wire-sensor analog interface module (AFE), NI9222 cRIO 4-channel 16-bit digitizer, cRIO resolver demodulator, cRIO event receiver, front-panel touch panel display, motor driver, and all necessary software, interface wiring, connectors and ancillary components. This wirescanner system provides a complete, turn-key, 2-axis wire-scanner system including 2-channel low-noise sensewire interface with variable DC wire bias and wireintegrity monitor, 16-bit signal digitizers, actuator motor drive and control, actuator position sensing, limit-switch interfaces, event receiver, LabVIEW and EPICS interface, and both remote operation and full stand-alone operation using the touch panel.

Gruchalla, Michael E. [Los Alamos National Laboratory

2011-01-01T23:59:59.000Z

70

Superconducting wire with improved strain characteristics  

DOE Patents (OSTI)

A superconducting wire comprising a superconducting filament and a beryllium strengthened bronze matrix in which the addition of beryllium to the matrix permits a low volume matrix to exhibit reduced elastic deformation after heat treating which increases the compression of the superconducting filament on cooling and thereby improves the strain characteristics of the wire.

Luhman, Thomas (Westhampton Beach, NY); Klamut, Carl J. (E. Patchogue, NY); Suenaga, Masaki (Bellport, NY); Welch, David (Stony Brook, NY)

1982-01-01T23:59:59.000Z

71

Superconducting wire with improved strain characteristics  

DOE Patents (OSTI)

A superconducting wire comprising a superconducting filament and a beryllium strengthened bronze matrix in which the addition of beryllium to the matrix permits a low volume matrix to exhibit reduced elastic deformation after heat treating which increases the compression of the superconducting filament on cooling and thereby improve the strain characteristics of the wire.

Luhman, Thomas (Westhampton Beach, NY); Klamut, Carl J. (East Patchogue, NY); Suenaga, Masaki (Bellport, NY); Welch, David (Stony Brook, NY)

1982-01-01T23:59:59.000Z

72

Superconducting wire with improved strain characteristics  

DOE Patents (OSTI)

A superconducting wire comprising a superconducting filament and a beryllium strengthened bronze matrix in which the addition of beryllium to the matrix permits a low volume matrix to exhibit reduced elastic deformation after heat treating which increases the compression of the superconducting filament on cooling and thereby improve the strain characteristics of the wire.

Luhman, T.; Klamut, C.J.; Suenaga, M.; Welch, D.

1979-12-19T23:59:59.000Z

73

Method of preparing composite superconducting wire  

DOE Patents (OSTI)

An improved method of preparing composite multifilament superconducting wire of Nb.sub.3 Sn in a copper matrix which eliminates the necessity of coating the drawn wire with tin. A generalized cylindrical billet of an alloy of copper containing at least 15 weight percent niobium, present in the copper as discrete, randomly distributed and oriented dendritic-shaped particles, is provided with at least one longitudinal opening which is filled with tin to form a composite drawing rod. The drawing rod is then drawn to form a ductile composite multifilament wire containing a filament of tin. The ductile wire containing the tin can then be wound into magnet coils or other devices before heating to diffuse the tin through the wire to react with the niobium forming Nb.sub.3 Sn. Also described is an improved method for making large billets of the copper-niobium alloy by consumable-arc casting.

Verhoeven, John D. (Ames, IA); Gibson, Edwin D. (Ames, IA); Finnemore, Douglas K. (Ames, IA); Ostenson, Jerome E. (Ames, IA); Schmidt, Frederick A. (Ames, IA); Owen, Charles V. (Ames, IA)

1985-08-06T23:59:59.000Z

74

Improved method of preparing composite superconducting wire  

DOE Patents (OSTI)

An improved method of preparing composite multifilament superconducting wire of Nb/sub 3/Sn in a copper matrix eliminates the necessity of coating the drawn wire with tin. A generalized cylindrical billet of an alloy of copper containing at least 15 weight percent niobium, present in the copper as discrete, randomly distributed and oriented dendritic-shaped particles, is provided with at least one longitudinal opening which is filled with tin to form a composite drawing rod. The drawing rod is then drawn to form a ductile composite multifilament wire containing a filament of tin. The ductile wire containing the tin can then be wound into magnet coils or other devices before heating to diffuse the tin through the wire to react with the niobium forming Nb/sub 3/Sn. Also described is an improved method for making large billets of the copper-niobium alloy by consumable-arc casting.

Verhoeven, J.D.; Gibson, E.D.; Finnemore, D.K.; Ostenson, J.E.; Schmidt, F.A.; Owen, C.V.

1979-10-17T23:59:59.000Z

75

Improved method of preparing composite superconducting wire  

DOE Patents (OSTI)

An improved method of preparing composite multifilament superconducting wire of Nb/sub 3/Sn in a copper matrix which eliminates the necessity of coating the drawn wire with tin is described. A generalized cylindrical billet of an alloy of copper containing at least 15 weight percent niobium, present in the copper as discrete, randomly distributed and oriented dendritic-shaped particles, is provided with at least one longitudinal opening which is filled with tin to form a composite drawing rod. The drawing rod is then drawn to form a ductile composite multifilament wire containing a filament of tin. The ductile wire containing the tin can then be wound into magnet coils or other devices before heating to diffuse the tin through the wire to react with the niobium forming Nb/sub 3/Sn. Also described is an improved method for making large billets of the copper-niobium alloy by consumable-arc casting.

Verhoeven, J.D.; Gibson, E.D.; Finnemore, D.K.; Ostenson, J.E.; Schmidt, F.A.; Owen, C.V.

1981-04-24T23:59:59.000Z

76

Early expansion in exploding multiple wire arrays  

Science Conference Proceedings (OSTI)

A simple model is developed for the initial stage (blow-off and the onset of pinching) of a multiple exploded wire array. With obvious modifications the model can also be applied to single wires or other self-pinched plasma columns. Each wire in the array is modeled as a plasma cylinder undergoing self-similar radial motion, and the whole array is coupled self-consistently to an external circuit. The plasma expands initially; the onset of self-pinch is shown to be coincident with the plasma conductivity reaching a value large enough for skin effect to occur. The model is run for a variety of system parameters, and the choice of machine and wire parameters to attain particular objectives (e.g., rapid current rise, limited wire expansion, etc.) is discussed.

Bloomberg, H.W.; Lampe, M.; Colombant, D.G.

1980-10-01T23:59:59.000Z

77

Strain tolerant microfilamentary superconducting wire  

DOE Patents (OSTI)

A strain tolerant microfilamentary wire capable of carrying superconducting currents is provided comprising a plurality of discontinuous filaments formed from a high temperature superconducting material. The discontinuous filaments have a length at least several orders of magnitude greater than the filament diameter and are sufficiently strong while in an amorphous state to withstand compaction. A normal metal is interposed between and binds the discontinuous filaments to form a normal metal matrix capable of withstanding heat treatment for converting the filaments to a superconducting state. The geometry of the filaments within the normal metal matrix provides substantial filament-to-filament overlap, and the normal metal is sufficiently thin to allow supercurrent transfer between the overlapped discontinuous filaments but is also sufficiently thick to provide strain relief to the filaments.

Finnemore, Douglas K. (Ames, IA); Miller, Theodore A. (Tuscon, AZ); Ostenson, Jerome E. (Ames, IA); Schwartzkopf, Louis A. (Mankato, MN); Sanders, Steven C. (Ames, IA)

1993-02-23T23:59:59.000Z

78

Interaction between graphene and metamaterials: split rings vs. wire pairs  

Science Conference Proceedings (OSTI)

We have recently shown that graphene is unsuitable to replace metals in the current-carrying elements of metamaterials. At the other hand, experiments have demonstrated that a layer of graphene can modify the optical response of a metal-based metamaterial. Here we study this electromagnetic interaction between metamaterials and graphene. We show that the weak optical response of graphene can be modified dramatically by coupling to the strong resonant fields in metallic structures. A crucial element determining the interaction strength is the orientation of the resonant fields. If the resonant electric field is predominantly parallel to the graphene sheet (e.g., in a complementary split-ring metamaterial), the metamaterials resonance can be strongly damped. If the resonant field is predominantly perpendicular to the graphene sheet (e.g., in a wire-pair metamaterial), no significant interaction exists.

Zou, Yanhong; Tassin, Philippe; Koschny, Thomas; Soukoulis, Costas

2012-05-14T23:59:59.000Z

79

Improvement of Descalability of High Carbon Steel Wire Rods  

Science Conference Proceedings (OSTI)

Presentation Title, Improvement of Descalability of High Carbon Steel Wire Rods ... In the past, hydrochloric and sulfuric acids were used for the purpose of wire...

80

Material Flow and Texture in Friction Extruded Wire  

Science Conference Proceedings (OSTI)

Presentation Title, Material Flow and Texture in Friction Extruded Wire ... conducted during friction extrusion of AA6061 wire with AA2195 as a marker insert.

Note: This page contains sample records for the topic "optical ground wire" 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

Reliability of Copper Wire Bonding on Copper Substrate with Tin ...  

Science Conference Proceedings (OSTI)

Suitable bonding conditions, Tin thickness, stage temperature, wire bonding power and bonding time are chosen through wire bonding tests. Peel strength of a...

82

Transient Melt Pool Response in Wire Feed Electron Beam Direct ...  

Science Conference Proceedings (OSTI)

Presentation Title, Transient Melt Pool Response in Wire Feed Electron Beam Direct ... Abstract Scope, Wire feed electron beam direct digital manufacturing...

83

An alternative hypothesis for association between distribution wiring configurations and cancer: Planning phase  

Science Conference Proceedings (OSTI)

Several epidemiologic studies have reported positive associations between electric distribution wiring configurations and cancer incidence, particularly among children. According to the investigators of these studies, the results suggest a possible link between exposure to 60-Hertz magnetic fields because residential magnetic fields are correlated with wiring configurations. This report analyzes the plausibility of an alternate hypothesis to explain the epidemiologic observations, and recommends research to explore its validity. According to the hypothesis, ground return currents in plumbing service lines are associated with electric wiring configuration, and cause the release of corrosion products in tap water, whose ingestion constitutes a risk factor for cancer. To corroborate this hypothesis three conditions must be satisfied: the magnitude of the ground return currents in water pipes is related to wiring configuration, with higher currents generally found associated with homes classified in the high exposure categories; corrosion on the internal surface of water pipe is related to ac currents flowing on the pipe, with higher currents associated with higher rates of corrosion, and ingestion of water from pipes undergoing AC-induced corrosive processes increases the probability of developing cancer. The study's analysis did not uncover any critical data that would undermine the plausibility of this confounder hypothesis. 102 refs., 11 figs., 22 tabs.

Kavet, R. (Environmental Research Information, Inc., Palo Alto, CA (USA)); Silva, J.M. (Enertech Consultants, Campbell, CA (USA))

1990-06-01T23:59:59.000Z

84

Longevity of Emplacement Drift Ground Support Materials  

SciTech Connect

The purpose of this analysis is to evaluate the factors affecting the longevity of emplacement drift ground support materials and to develop a basis for selection of materials for ground support that will function throughout the preclosure period. The Development Plan (DP) for this analysis is given in CRWMS M&O (Civilian Radioactive Waste Management System Management and Operating Contractor) (1999a). The candidate materials for ground support are steel (carbon steel, ductile cast iron, galvanized steel, and stainless steel, etc.) and cement. Steel will mainly be used for steel sets, lagging, channels, rock bolts, and wire mesh. Cement usage is only considered in the case of grouted rock bolts. The candidate materials for the invert structure are steel and crushed rock ballast. The materials shall be evaluated for the repository emplacement drift environment under a specific thermal loading condition based on the proposed License Application Design Selection (LADS) design. The analysis consists of the following tasks: (1) Identify factors affecting the longevity of ground control materials for use in emplacement drifts. (2) Review existing documents concerning behavior of candidate ground control materials during the preclosure period. The major criteria to be considered for steel are mechanical and thermal properties, and durability, of which corrosion is the most important concern. (3) Evaluate the available results and develop recommendations for material(s) to be used.

D. Tang

2000-01-07T23:59:59.000Z

85

Modeling of Ice Accretion on Wires  

Science Conference Proceedings (OSTI)

A time-dependent numerical model of ice accretion on wires, such as overhead conductors, is presented. Simulations of atmospheric icing are made with the model in order to examine the dependence of the accreted ice amount on atmospheric ...

Lasse Makkonen

1984-06-01T23:59:59.000Z

86

Transmission Line Grounding  

Science Conference Proceedings (OSTI)

In 2008, the Electric Power Research Institute (EPRI) published a comprehensive grounding report. Published in two parts, the report covered the theoretical and practical aspects of transmission line grounding practices. To further improve the tools available for grounding analysis, an investigation into practical ways to calculate the fault current distribution and ground potential rise of the transmission line grounding system was conducted. Furthermore, a survey of utilities has documented industry pr...

2011-12-23T23:59:59.000Z

87

Phase Conductor and Shield Wire Corrosion  

Science Conference Proceedings (OSTI)

As new inspection technologies for conductors and shield wires develop and mature, the assessment process becomes more accurate in identifying and quantifying flaws. With better accuracy, condition assessment can be less conservative, thus allowing utilities to save money by keeping conductors in service for longer periods. This report, which includes the results of a survey of EPRI member utilities on phase conductor and shield wire installations, inspections, and failures, updates recent EPRI work on c...

2007-12-20T23:59:59.000Z

88

Power Quality Improvement Methodology for Wires Companies  

Science Conference Proceedings (OSTI)

This report provides practical utility-side strategies for improving power quality. Much research has been done on the application of custom power devices to mitigate power quality events on transmission and distribution wires systems. However, these solutions can be costly and often benefit a limited number of customers. Many wires companies are looking for ways to improve the overall quality of their service using methods and equipment that are more traditional.

2003-02-11T23:59:59.000Z

89

Energetic additive manufacturing process with feed wire  

DOE Patents (OSTI)

A process for additive manufacture by energetic wire deposition is described. A source wire is fed into a energy beam generated melt-pool on a growth surface as the melt-pool moves over the growth surface. This process enables the rapid prototyping and manufacture of fully dense, near-net shape components, as well as cladding and welding processes. Alloys, graded materials, and other inhomogeneous materials can be grown using this process.

Harwell, Lane D. (Albuquerque, NM); Griffith, Michelle L. (Albuquerque, NM); Greene, Donald L. (Corrales, NM); Pressly, Gary A. (Sandia Park, NM)

2000-11-07T23:59:59.000Z

90

Pulsed electromagnetic acceleration of exploded wire plasmas  

Science Conference Proceedings (OSTI)

A simple analysis of the dynamic state of a current-conducting high-density plasma column, resulting from an exploded wire between the conductors of a rail-gun accelerator or one or more wires strung between the anode and cathode conductors in a pulsed-power generator diode, is given on the basis of a one-dimensional magnetohydrodynamics model. Spatial distributions of the current density, magnetic field, temperature, and particle density are calculated as well as the temporal current, voltage, and impedance histories. The model self-consistently treats the accelerator load transition through its solid, melt, vapor, and plasma states in the presence of its supply source and feed network. Once formed and accelerated, the plasma state calculations show expansion cooling across the self-induced magnetic field if the Bennett condition is not satisfied. The model predictions are compared to two experimental situations. The first involves the delivery of some hundreds of Joules of stored energy to the wire load. For this case, good agreement between the calculated and observed plasma state is obtained. The second situation involves the delivery of many thousands of Joules to the wire load. For this case and dependent upon the wire mass, diameter, number of wires exploded, their separation, and the pulsed energy electrical wave shapes, the magnetohydrodynamic results can be qualitatively incorrect. The necessity of an electromagnetic particle simulation approach is indicated in order to resolve the magnetic rope-like structure and filamentation observed in the very energetic plasmas.

Peratt, A.L.; Koert, P.

1983-11-01T23:59:59.000Z

91

Chemistry of radiation damage to wire chambers  

SciTech Connect

Proportional counters are used to study aspects of radiation damage to wire chambers (wire aging). Principles of low-pressure, rf plasma chemistry are used to predict the plasma chemistry in electron avalanches (1 atm, dc). (1) Aging is studied in CF{sub 4}/iC{sub 4}H{sub 10} gas mixtures. Wire deposits are analyzed by Auger electron spectroscopy. An apparent cathode aging process resulting in loss of gain rather than in a self-sustained current is observed in CF{sub 4}-rich gases. A four-part model considering plasma polymerization of the hydrocarbon, etching of wire deposits by CF{sub 4}, acceleration of deposition processes in strongly etching environments, and reactivity of the wire surface is developed to understand anode wire aging in CF{sub 4}/iC{sub 4}H{sub 10} gases. Practical guidelines suggested by the model are discussed. (2) Data are presented to suggest that trace amounts of Freons do not affect aging rates in either dimethyl ether or Ar/C{sub 2}H{sub 6}. Apparent loss of gain is explained by attachment of primary electrons to a continuously increasing concentration of Freon 11 (CCl{sub 3}F) in the counter gas. An increase in the concentration of Freon 11 in dimethyl ether is caused by a distillation process in the gas supply bottle and is a natural consequence of the unequal volatilities of the two compounds.

Wise, J.

1992-08-01T23:59:59.000Z

92

Electrical Subsurface Grounding Analysis  

SciTech Connect

The purpose and objective of this analysis is to determine the present grounding requirements of the Exploratory Studies Facility (ESF) subsurface electrical system and to verify that the actual grounding system and devices satisfy the requirements.

J.M. Calle

2000-11-01T23:59:59.000Z

93

Method of fabricating composite superconducting wire  

DOE Patents (OSTI)

An improvement in the method for preparing composite rods of superconducting alloy and normal metal from which multifilament composite superconducting wire is fabricated by bending longitudinally a strip of normal metal around a rod of superconductor alloy and welding the edges to form the composite rod. After the rods have preferably been provided with a hexagonal cross-sectional shape, a plurality of the rods are stacked into a normal metal extrusion can, sealed and worked to reduce the cross-sectional size and form multifilament wire. Diffusion barriers and high-electrical resistance barriers can easily be introduced into the wire by plating or otherwise coating the faces of the normal metal strip with appropriate materials.

Strauss, Bruce P. (Downers Grove, IL); Reardon, Paul J. (Princeton, NJ); Remsbottom, Robert H. (Middleton, WI)

1977-01-01T23:59:59.000Z

94

Tapered monocapillary-optics for point source applications  

DOE Patents (OSTI)

A glass or metal wire is precisely etched to form the paraboloidal or ellipsoidal shape of the final desired capillary optic. This shape is created by carefully controlling the withdrawal speed of the wire from an etchant bath. In the case of a complete ellipsoidal capillary, the etching operation is performed twice in opposite directions on adjacent wire segments. The etched wire undergoes a subsequent operation to create an extremely smooth surface. This surface is coated with a layer of material which is selected to maximize the reflectivity of the radiation. This reflective surface may be a single layer for wideband reflectivity, or a multilayer coating for optimizing the reflectivity in a narrower wavelength interval. The coated wire is built up with a reinforcing layer, typically by a plating operation. The initial wire is removed by either an etching procedure or mechanical force. Prior to removing the wire, the capillary is typically bonded to a support substrate. One option for attaching the wire to the substrate produces a monolithic structure by essentially burying it under a layer of plating which covers both the wire and the substrate. The capillary optic is used for efficiently collecting and redirecting the divergent radiation from a source which could be the anode of an x-ray tube, a plasma source, the fluorescent radiation from an electron microprobe, or some other source of radiation.

Hirsch, Gregory (1277 Linda Mar Center, Suite 128, Pacifica, CA 94044)

2000-01-01T23:59:59.000Z

95

LANSCE Wire Scanner System Prototype: Switchyard Test  

Science Conference Proceedings (OSTI)

On November 19, 2011, the beam diagnostics team of Los Alamos National Laboratory's LANSCE accelerator facility conducted a test of a prototype wire scanner system for future deployment within the accelerator's switchyard area. The primary focus of this test was to demonstrate the wire scanner control system's ability to extend its functionality beyond acquiring lower energy linac beam profile measurements to acquiring data in the switchyard. This study summarizes the features and performance characteristics of the electronic and mechanical implementation of this system with details focusing on the test results.

Sedillo, James D [Los Alamos National Laboratory

2012-04-11T23:59:59.000Z

96

Xcel Energy - Farm Re-Wiring Loan Program (Wisconsin) | Department...  

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

Re-Wiring Loan Program (Wisconsin) Xcel Energy - Farm Re-Wiring Loan Program (Wisconsin) Eligibility Agricultural Savings For Other Maximum Rebate 23,000 loan maximum Can be...

97

Magnet Wire Plant Resolves PQ Issues  

Science Conference Proceedings (OSTI)

This case study presents an example of a magnet wire plant that was subject to a number of power quality (PQ) disturbances. These disturbances were severe enough to upset several manufacturing lines. A detailed audit revealed that the plant could be hardened to PQ disturbances using simple-to-implement, low-cost techniques.

2007-12-31T23:59:59.000Z

98

Porous coatings from wire mesh for bone implants  

DOE Patents (OSTI)

A method of coating areas of bone implant elements and the resulting implant having a porous coating are described. Preselected surface areas are covered by a preform made from continuous woven lengths of wire. The preform is compressed and heated to assure that diffusion bonding occurs between the wire surfaces and between the surface boundaries of the implant element and the wire surfaces in contact with it. Porosity is achieved by control of the resulting voids between the bonded wire portions.

Sump, Kenneth R. (Richland, WA)

1986-01-01T23:59:59.000Z

99

Nuclear Maintenance Applications Center: Wire Brush and Alternatives Selection Matrix  

Science Conference Proceedings (OSTI)

The purpose of this product is to provide maintenance personnel guidance regarding the suitability of various non-wire filament brush products for different applications in the plant. The objective of the Wire Brush and Alternatives Selection Matrix is to provide recommendations and encourage the use of products in lieu of wire brushes. The recommendations in the matrix were developed based on the testing described EPRI report 1022273, Wire Brush Testing, Procurement and Usage Guide, and recommendations ...

2010-12-23T23:59:59.000Z

100

Transient Melt Pool Response in Wire Feed Additive Manufacturing ...  

Science Conference Proceedings (OSTI)

Symposium, Advanced Materials, Processes and Applications for Additive Manufacturing ... Lubricants in Deposition and Machining of Wire and Arc Additive...

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


101

Electrical grounding prong socket  

SciTech Connect

The invention is a socket for a grounding prong used in a three prong electrical plug and a receptacle for the three prong plug. The socket being sufficiently spacious to prevent the socket from significantly stretching when a larger, U-shaped grounding prong is inserted into the socket, and having a ridge to allow a snug fit when a smaller tubular shape grounding prong is inserted into the socket.

Leong, Robert (Dublin, CA)

1991-01-01T23:59:59.000Z

102

Composite wire microelectrode and method of making same  

DOE Patents (OSTI)

A composite wire microelectrode for making electro-chemical measurements, and method of making same, are disclosed. The microelectrode includes an inner conductive sensing wire and an outer tube that is oxidized to form a dielectric, self-healing oxide layer around the sensing wire. 4 figs.

Isaacs, H.S.; Aldykiewicz, A.J. Jr.

1996-12-03T23:59:59.000Z

103

Wire-Extrusion Process Disrupted By Voltage Sags  

Science Conference Proceedings (OSTI)

This PQTN Case Study investigates voltage sags originating from a utility distribution system at a wire-extrusion plant near Cleveland, Ohio that were causing a wire-drawing process to malfunction, resulting in broken tungsten wire and hours of time spent restarting the manufacturing process.

2003-12-31T23:59:59.000Z

104

Composite wire microelectrode and method of making same  

DOE Patents (OSTI)

A composite wire microelectrode for making electro-chemical measurements, and method of making same. The microelectrode includes an inner conductive sensing wire and an outer tube that is oxidized to form a dielectric, self-healing oxide layer around the sensing wire.

Isaacs, Hugh S. (Shoreham, NY); Aldykiewicz, Jr., Antonio J. (Thiells, NY)

1996-12-03T23:59:59.000Z

105

Predaceous Ground Beetles  

E-Print Network (OSTI)

Predaceous ground beetles can be a nuisance to homeowners, especially when they are numerous. This publication describes the beetles and discusses ways to prevent and treat them.

Sansone, Chris; Minzenmayer, Rick

2003-06-30T23:59:59.000Z

106

Substation grounding programs  

SciTech Connect

This document is a users manual and applications guide for the software package SGA. This package comprises four computer programs, namely SOMIP, SMECC, SGSYS, and TGRND. The first three programs are analysis models which are to be used in the design process of substation grounding systems. The fourth program, TGRND, is an analysis program for determining the transient response of a grounding system. This report, Volume 3, is a users manual and an installation and validation manual for the computer program SGSYS (Substation Grounding SYStem Analysis Program). This program analyzes the substation ground field given the total electric current injected into the ground field and the design of the grounding system. Standard outputs of the program are (1) total ground resistance, (2) step voltage, (3) touch voltage, (4) voltages on a grid of points, (5) voltage profile along straight lines, (6) transfer voltages, (7) ground potential rise, (8) body currents, (9) step voltage profile along straight lines, and (10) touch voltage profile along straight lines. This program can be utilized in an interactive or batch mode. In the interactive mode, the user defines the grounding system geometry, soil parameters, and output requests interactively, with the use of a user friendly conversational program. The users manual describes data requirements and data preparation procedures. An appendix provides forms which facilitate data collection procedures. The installation and validation manual describes the computer files which make up the program SGSYS and provides a test case for validation purposes.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). Electric Power Lab.)

1992-05-01T23:59:59.000Z

107

THE BASICS OF FIBER OPTIC CABLE (Single-mode multi-mode)  

E-Print Network (OSTI)

campuses, office buildings, industrial plants, and electric utility companies. A fiber-optic system is similar to the copper wire system that fiber-optics is replacing. The difference is that fiber-optics use into the fiber-optic medium where they travel down the cable. The light (near infrared) is most often 850nm

Wang, Deli

108

Hybrid Fiber Optics  

SciTech Connect

Instruments and devices based on optical fiber were originally simple and passive. That has changed. A variety of devices uses optical fiber for sensing, communications and various optoelectronic functions. This paper discusses the creation of a hybrid optical fiber that incorporates not just the light transmission function but other types of materials and new multiple fiber arrangements. Recent experiences with a fiber draw tower reveal new possibilities for achieving multifunctional devices able to perform diverse instrumentation sensing applications. This is achievable even with feature sizes, when desired, on the nanoscale. For instance, fiber comprised of one or more light guides and one or more electrically conducting wires is feasible. This combination of optical fiber and metal wire may be termed a wiber . The wiber could determine temperature and proximity to surfaces, detect radio-frequency radiation, and provide electrical power. At the same time, a wiber would have the capability to simultaneously transmit light where the light is utilized to sense temperature and proximity and give illumination. There are many possible uses--depending on design and configuration--cutting across many technologies and programs.

Allison, Stephen W [ORNL; Simpson, John T [ORNL; Gillies, George [ORNL

2010-01-01T23:59:59.000Z

109

Ways of grounding imagination  

Science Conference Proceedings (OSTI)

This paper discusses and evaluates use of different participatory design methods in relation to addressing the challenge of grounding imagination. It presents reflections on the use of three participatory design methods, deployed in the WorkSpace project: ... Keywords: PD methods, analytical triangulation, bricolage, future laboratory, grounding imagination, in-situ prototyping experiments

Monika Bscher; Mette Agger Eriksen; Jannie Friis Kristensen; Preben Holst Mogensen

2004-07-01T23:59:59.000Z

110

High density harp or wire scanner for particle beam diagnostics  

DOE Patents (OSTI)

A diagnostic detector head harp (23) used to detect and characterize high energy particle beams using an array of closely spaced detector wires (21), typically carbon wires, spaced less than 0.1 cm (0.040 inch) connected to a hybrid microcircuit (25) formed on a ceramic substrate (26). A method to fabricate harps (23) to obtain carbon wire spacing and density not previously available utilizing hybrid microcircuit technology. The hybrid microcircuit (25) disposed on the ceramic substrate (26) connects electrically between the detector wires (21) and diagnostic equipment (37) which analyzes pulses generated in the detector wires (21) by the high energy particle beams.

Fritsche, Craig T. (Overland Park, KS); Krogh, Michael L. (Lee' s Summit, MO)

1996-05-21T23:59:59.000Z

111

Ground Motion Workshop  

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

2nd Advanced ICFA Beam Dynamics Workshop 2nd Advanced ICFA Beam Dynamics Workshop on Ground Motion in Future Accelerators November 6 - 9, 2000 SLAC Coordinators: Andrei Seryi & Tor Raubenheimer Proceedings Updated June 26, 2001 Agenda and Presentations Workshop photos Summaries Useful links Poster Goals Introduction to the problems Structure Registration Registered participants Committees Location, Accommodations and Travel Workshop on Ground Motion in Future Accelerators A workshop was held at SLAC that was devoted to ground motion and its effects on future accelerators. Ground motion and vibration can be a limiting effect in synchrotron light sources, hadron circular colliders, and electron/positron linear colliders. Over the last several years, there has been significant progress in the understanding of the ground motion and its effects, however, there are

112

Conductor and Shield Wire Inspection and Assessment  

Science Conference Proceedings (OSTI)

With thousands of miles of transmission lines nearing the end of their expected service life, conductor life and reliability are of increasing concern to many utilities. The consequences of conductor failure can be significant and its impacts widespread. ACSR conductors have been identified as the most problematic of all the conductors because the conductor core cannot be assessed visually. ACSR conductors have a steel stranded core to carry the wire tension load and two or more layers of aluminum strand...

2008-12-10T23:59:59.000Z

113

Measurement of ion beam profiles in a superconducting linac with a laser wire  

Science Conference Proceedings (OSTI)

A laser wire ion beam profile monitor system has been developed at the Spallation Neutron Source accelerator complex. The laser wire system uses a single laser source to measure the horizontal and vertical profiles of a pulsed hydrogen ion (H{sup -}) beam along a 230 m long superconducting linac, which accelerates H{sup -} from 200 MeV to 1 GeV. In this paper, we describe the laser optics requirement for the system, the performance of the profile measurement, and the effects of laser parameters on the measurement reliability. The result provides a practical guideline for the development of a large-scale, operational, laser-based diagnostics in accelerator facilities.

Liu Yun; Long, Cary; Peters, Charles; Aleksandrov, Alexander

2010-12-10T23:59:59.000Z

114

METHOD OF LOCATING GROUNDS  

DOE Patents (OSTI)

ABS>This patent presents a method for locating a ground in a d-c circult having a number of parallel branches connected across a d-c source or generator. The complete method comprises the steps of locating the ground with reference to the mildpoint of the parallel branches by connecting a potentiometer across the terminals of the circuit and connecting the slider of the potentiometer to ground through a current indicating instrument, adjusting the slider to right or left of the mildpoint so as to cause the instrument to indicate zero, connecting the terminal of the network which is farthest from the ground as thus indicated by the potentiometer to ground through a condenser, impressing a ripple voltage on the circuit, and then measuring the ripple voltage at the midpoint of each parallel branch to find the branch in which is the lowest value of ripple voltage, and then measuring the distribution of the ripple voltage along this branch to determine the point at which the ripple voltage drops off to zero or substantially zero due to the existence of a ground. The invention has particular application where a circuit ground is present which will disappear if the normal circuit voltage is removed.

Macleish, K.G.

1958-02-11T23:59:59.000Z

115

Longevity of Emplacement Drift Ground Support Materials  

Science Conference Proceedings (OSTI)

The purpose of this analysis is to evaluate the factors affecting the longevity of emplacement drift ground support materials and to develop a basis for the selection of materials for ground support that will function throughout the preclosure period of a potential repository at Yucca Mountain. REV 01 ICN 01 of this analysis is developed in accordance with AP-3.10Q, Analyses and Models, Revision 2, ICN 4, and prepared in accordance with the Technical Work Plan for Subsurface Design Section FY 01 Work Activities (CRWMS M&O 2001a). The objective of this analysis is to update the previous analysis (CRWMS M&O 2000a) to account for related changes in the Ground Control System Description Document (CRWMS M&O 2000b), the Monitored Geologic Repository Project Description Document, which is included in the Requirements and Criteria for Implementing a Repository Design that can be Operated Over a Range of Thermal Modes (BSC 2001), input information, and in environmental conditions, and to provide updated information on candidate ground support materials. Candidate materials for ground support are carbon steel and cement grout. Steel is mainly used for steel sets, lagging, channel, rock bolts, and wire mesh. Cement grout is only considered in the case of grouted rock bolts. Candidate materials for the emplacement drift invert are carbon steel and granular natural material. Materials are evaluated for the repository emplacement drift environment based on the updated thermal loading condition and waste package design. The analysis consists of the following tasks: (1) Identify factors affecting the longevity of ground support materials for use in emplacement drifts. (2) Review existing documents concerning the behavior of candidate ground support materials during the preclosure period. (3) Evaluate impacts of temperature and radiation effects on mechanical and thermal properties of steel. Assess corrosion potential of steel at emplacement drift environment. (4) Evaluate factors affecting longevity of cement grouts for fully grouted rock bolt system. Provide updated information on cement grout mix design for fully grouted rock bolt system. (5) Evaluate longevity of materials for the emplacement drift invert.

D.H.Tang

2001-05-30T23:59:59.000Z

116

Substation Grounding Grids  

Science Conference Proceedings (OSTI)

This report is an account of research performed by the Electric Power Research Institute (EPRI) in 2011 on the subject of degradation of buried grounding grids in electric power substations. Substation ground grids are usually made of copper conductors, which are placed below grade and are joined together and to the above-grade structures with various types of connectors. While above-grade connections are visible and may be inspected, below-grade connections are not visible or readily accessible for insp...

2011-12-22T23:59:59.000Z

117

EPRI Substation Grounding Project  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) has been conducting research in the area of substation grounding and fault current management for several decades. This research has resulted in a large number of reports and other products. To help users locate the results of EPRIs research in substation grounding and fault current management, an annual update is prepared containing brief descriptions of the products.ObjectiveThe objective of this report is ...

2012-09-06T23:59:59.000Z

118

Substation grounding programs  

SciTech Connect

This document is a users manual and applications guide for the software package SGA. This package comprises four computer programs, namely SOMIP, SMECC, SGSYS, and TGRND. The first three programs are analysis models which are to be used in the design process of substation grounding systems. The fourth program, TGRND, is an analysis program for determining the transient response of a grounding system. This report, Volume 2, is a users manual and an installation and validation manual for the computer program SMECC (Substation Maximum Earth Current Computation Program). This program analyzes the electric current distribution among grounded structures inside and outside a substation for different fault conditions. The fault conditions are automatically selected by the program, or they may be specified by the user, or both. The fault condition resulting in maximum substation earth current is identified and reported. Data requirements for this program are: ground impedance, transformer data, transmission line data, transmission line grounding impedances, etc. The program provides four types of standard outputs: (1) a report of voltages and current flow in the unfaulted system, (2) a brief report of the maximum ground potential rise (worst fault condition), (3) a summary report of all fault conditions which have been analyzed by the program, and (4) a detailed report of voltages and current flow for a selected set of fault conditions.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). Electric Power Lab.)

1992-05-01T23:59:59.000Z

119

Motion planning of inspection robot suspended on overhead ground wires for obstacle-navigation  

Science Conference Proceedings (OSTI)

The purpose of inspection robot for power transmission lines is to check running state and find damages of extra-high voltage (EHV) power transmission lines equipment. The key of the control design is how to design a robot for obstacles navigation. This ... Keywords: centroid adjustment, inspection robot, obstacles navigation automatically, power transmission line

Ren Zhi-Bin; Ruan Yi; Li Zheng; Yang Yong

2009-06-01T23:59:59.000Z

120

''Water bath'' effect during the electrical underwater wire explosion  

SciTech Connect

The results of a simulation of underwater electrical wire explosion at a current density >10{sup 9} A/cm{sup 2}, total discharge current of {approx}3 MA, and rise time of the current of {approx}100 ns are presented. The electrical wire explosion was simulated using a one-dimensional radiation-magnetohydrodynamic model. It is shown that the radiation of the exploded wire produces a thin conducting plasma shell in the water in the vicinity of the exploding wire surface. It was found that this plasma shell catches up to 30% of the discharge current. Nevertheless, it was shown that the pressure and temperature of the wire material remain unchanged as compared with the idealized case of the electrical wire explosion in vacuum. This result is explained by a 'water bath' effect.

Oreshkin, V. I.; Chaikovsky, S. A.; Ratakhin, N. A.; Grinenko, A.; Krasik, Ya. E. [High Current Electronic Institute SB RAS, Tomsk (Russian Federation); Physics Department, Technion, Haifa 32000 (Israel)

2007-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "optical ground wire" 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

Investigating the Use of Ultrasonic Guided Waves for Aging Wire  

E-Print Network (OSTI)

Aging wiring has become a critical issue to DoD, NASA, FAA, and Industry. The problem is that insulation on environmentally aged wire becomes brittle and cracks. This exposes the underlying conductive wire to the potential for short circuits and fire. The difficulty is that techniques to monitor aging wire problems focus on applying electrical sensing techniques that are not very sensitive to the wire insulation. Thus, the development of methods to quantify and monitor aging wire insulation is highly warranted. Measurement of wire insulation stiffness by ultrasonic guided waves is being examined. Initial laboratory tests were performed on a simple model consisting of a solid cylinder and then a solid cylinder with a polymer coating. Experimental measurements showed that the lowest order axisymmetric mode may be sensitive to stiffness changes in the wire insulation. To test this theory, mil-spec wire samples MIL-W-81381, MIL-W-22759/34, and MIL-W-22759/87 (typically found in aircraft) were heat-damaged in an oven, in a range of heating conditions. The samples were 12, 16, and 20 gauge and the heat-damage introduced material changes in the wire-insulation that made the originally flexible insulation brittle and darker in color. Axisymmetric mode phasevelocity increased for the samples that were exposed to heat for longer duration. For example, the phase velocity in the 20-gauge MIL-W-22759/34 wire changed from a baseline value of 2790m/s to 3280m/s and 3530m/s for one-hour exposures to 349 C and 399 C, respectively. Although the heat-damage conditions are not the same as environmental aging, we believe that with further development and refinements, the ultrasonic guided waves can be used to inspect wire-insulation for detrimental environmental aging conditions.

Insulation Assessment Robert; Robert F. Anastasi A; Eric I. Madaras B

2002-01-01T23:59:59.000Z

122

Soldering Small Beads to Fine Wires  

SciTech Connect

One method suggested for soldering small beads to fine wires using a torch to heat the bead, flux, and magnesia brick did not prove entirely satisfactory in this case. It was found the brick would draw heat away from the bead and flux at too fast a rate resulting in a poor weld, a rough surface, and an excessive accumulation of flux on the bead. Secondly, removal of the depleted flux presented a problem when the welding was done on the surface of the brick.

Stanton, J. S.

1950-03-01T23:59:59.000Z

123

Characterization of converging shock waves generated by underwater electrical wire array explosion  

SciTech Connect

Results of {approx}200 kbar pressure generation at 50 {mu}m distance from the implosion axis of the converging shock wave produced by an underwater electrical explosion of a cylindrical wire array are reported. The array was exploded using a submicrosecond high-current generator (stored energy of {approx}4.2 kJ, current amplitude of {approx}325 kA, rise time of {approx}1 {mu}s). Multiframe shadow imaging of the shock wave was used to determine its time of flight. These data were applied for calculating the pressure at the vicinity of the implosion axis using one dimensional hydrodynamic calculations and the Whitham approach. However, it was found that in the case of wire array radius {<=}5 mm, multiframe imaging cannot be used at the final stage of the shock wave implosion because of possible changes in the optical properties of the water. Optical and spectroscopic methods based on either the change in the refraction index of the optical fiber or spectroscopy of the plasma formed inside the capillary placed at the implosion axes were used for shock wave characterization. A satisfactory agreement was found between the results obtained by these methods.

Efimov, S.; Fedotov, A.; Gleizer, S.; Gurovich, V. Tz.; Bazalitski, G.; Krasik, Ya. E. [Department of Physics, Technion, 32000 Haifa (Israel)

2008-11-15T23:59:59.000Z

124

Corrosion Behavior of Twin Wire Arc Sprayed Inconel Coating  

Science Conference Proceedings (OSTI)

Presentation Title, Corrosion Behavior of Twin Wire Arc Sprayed Inconel Coating. Author(s), Sofiane Djeraf, Yamina Mebdoua, Hadj Lahmar, Rachid Lakhdari.

125

Challenges of Using Copper as a Bonding Wire Material  

Science Conference Proceedings (OSTI)

Due to its malleability and surface properties, gold as a wire material is ideally suited for the bonding process. However, the cost of gold has increased...

126

Microstructural Evolution in TWIP Steels during Wire Drawing  

Science Conference Proceedings (OSTI)

The results obtained by wire drawing have been compared with those by uniaxial tension and cold rolling. It has been shown that the evolution of texture and...

127

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide...  

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

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers Print Low-dimensional materials have gained much attention not only because of the nonstop march toward...

128

Control of Wire Rod Physical Properties Like Ultimate Tensile ...  

Science Conference Proceedings (OSTI)

Sep 1, 2001 ... Control of Wire Rod Physical Properties Like Ultimate Tensile Strength and Elongation by Close Monitoring of Rolling Energy Input

129

Characterization of Wire Bonds Sujected to Ultrasonic ... - TMS  

Science Conference Proceedings (OSTI)

May 1, 2007 ... Characterization of Wire Bonds Sujected to Ultrasonic Welding and Thermal Cycling by Anil Saigal, Peterson Silva, Robert Greif and Michael...

130

The Superelastic Behavior of Ti-Ni Superelastic Wire Rope  

Science Conference Proceedings (OSTI)

The advantages of superelastic wire ropes are better fatigue life, increase bending flexibility and increase responsively. There are few studies of superelastic...

131

ORNL and SuperPower Sign Superconducting Wire Agreement  

for more efficient transmission of electricity. ... line networks; and increase power-transmission capacity. Second-generation (2G) wires made by

132

Hot Wire Chemical Vapor Deposition with Carbide Filaments ...  

Many of the current industry cells in production have come through NREL, ... One deposition technology utilized at NREL deals with hot wire chemical ...

133

Alliant Energy (Wisconsin Power and Light)- Farm Wiring Financing Program  

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

Alliant Energy (Wisconsin Power & Light) offers a farm wiring financing program to increase farm safety, productivity and efficiency, while decreasing the potential for stray voltage on...

134

Bimetallic steel/aluminum wire for overhead telecommunication lines  

Science Conference Proceedings (OSTI)

for power transmission and overhead telecommunication lines and other .... " Method of manufacture of bimetallic wire for, e.g., trolley-bus cable or rods, n Inven-.

135

Numerical Simulations of Wire and Foil Behaviors under Megaampere...  

National Nuclear Security Administration (NNSA)

2: High Energy Density, Plasmas, Magnetic Fields Numerical Simulations of Wire and Foil Electrical Explosion under Helical EMG Current Drive for Warm Dense Matter Generation S.F....

136

An Updated Assessement of Copper Wire Thefts from Electric Utilities...  

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

infrastructure in the United States. This report updates a previously published report on copper wire theft. The combined efforts of electric utilities, lawmakers, scrap metal...

137

Electrical and capacitive methods for detecting degradation in wire insulation.  

E-Print Network (OSTI)

??Motivated by a need within the aerospace industry to detect and characterize degradation in the insulation of onboard wires, this thesis reports testing of several (more)

Sheldon, Robert Thomas

2012-01-01T23:59:59.000Z

138

Processing of Aluminum Wires and Its Effect on Their Electrical ...  

Science Conference Proceedings (OSTI)

The treated specimens were mechanically tested and their electrical resistivity was measured and compared with pure aluminum wires. The highest electrical...

139

Nanowires and nanoribbons as subwavelength optical waveguides and their use as components in photonic circuits and devices  

DOE Patents (OSTI)

Nanoribbons and nanowires having diameters less than the wavelength of light are used in the formation and operation of optical circuits and devices. Such nanostructures function as subwavelength optical waveguides which form a fundamental building block for optical integration. The extraordinary length, flexibility and strength of these structures enable their manipulation on surfaces, including the precise positioning and optical linking of nanoribbon/wire waveguides and other nanoribbon/wire elements to form optical networks and devices. In addition, such structures provide for waveguiding in liquids, enabling them to further be used in other applications such as optical probes and sensors.

Yang, Peidong; Law, Matt; Sirbuly, Donald J.; Johnson, Justin C.; Saykally, Richard; Fan, Rong; Tao, Andrea

2012-10-02T23:59:59.000Z

140

Substation grounding programs  

SciTech Connect

This document is a users manual and applications guide for the software package SGA. This package comprises four computer programs, namely SOMIP, SMECC, SGSYS, and TGRND. The first three programs are analysis models which are to be used in the design process of substation grounding systems. The fourth program, TGRND, is an analysis program for determining the transient response of a grounding system. This report, Volume 5, is an applications guide of the three computer programs. SOMIP, SMECC, and SGSYS, for the purpose of designing a safe substation grounding system. The applications guide utilizes four example substation grounding systems for the purpose of illustrating the application of the programs, SOMIP, SMECC, and SGSYS. The examples are based on data provided by four contributing utilities, namely, Houston Lighting and Power Company, Southern Company Services, Puget Sound Power and Light Company, and Arizona Public Service Company. For the purpose of illustrating specific capabilities of the computer programs, the data have been modified. As a result, the final designs of the four systems do not necessarily represent actual grounding system designs by these utilities. The example system 1 is a 138 kV/35 kV distribution substation. The example system 2 is a medium size 230 kV/115 kV transmission substation. The third example system is a generation substation while the last is a large 525 kV/345 kV/230 kV transmission substation. The four examples cover most of the practical problems that a user may encounter in the design of substation grounding systems.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). Electric Power Lab.)

1992-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "optical ground wire" 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

Humidity effects on wire insulation breakdown strength.  

SciTech Connect

Methods for the testing of the dielectric breakdown strength of insulation on metal wires under variable humidity conditions were developed. Two methods, an ASTM method and the twisted pair method, were compared to determine if the twisted pair method could be used for determination of breakdown strength under variable humidity conditions. It was concluded that, although there were small differences in outcomes between the two testing methods, the non-standard method (twisted pair) would be appropriate to use for further testing of the effects of humidity on breakdown performance. The dielectric breakdown strength of 34G copper wire insulated with double layer Poly-Thermaleze/Polyamide-imide insulation was measured using the twisted pair method under a variety of relative humidity (RH) conditions and exposure times. Humidity at 50% RH and below was not found to affect the dielectric breakdown strength. At 80% RH the dielectric breakdown strength was significantly diminished. No effect for exposure time up to 140 hours was observed at 50 or 80%RH.

Appelhans, Leah

2013-08-01T23:59:59.000Z

142

Generation of extreme state of water by spherical wire array underwater electrical explosion  

SciTech Connect

The results of the first experiments on the underwater electrical explosion of a spherical wire array generating a converging strong shock wave are reported. Using a moderate pulse power generator with a stored energy of {<=}6 kJ and discharge current of {<=}500 kA with a rise-time of {approx}300 ns, explosions of Cu and Al wire arrays of different diameters and with a different number and diameter of wires were tested. Electrical, optical, and destruction diagnostics were used to determine the energy deposited into the array, the time-of-flight of the shock wave to the origin of the implosion, and the parameters of water at that location. The experimental and numerical simulation results indicate that the convergence of the shock wave leads to the formation of an extreme state of water in the vicinity of the implosion origin that is characterized by pressure, temperature, and compression factors of (2 {+-} 0.2) Multiplication-Sign 10{sup 12} Pa, 8 {+-} 0.5 eV, and 7 {+-} 0.5, respectively.

Antonov, O.; Gilburd, L.; Efimov, S.; Bazalitski, G.; Gurovich, V. Tz.; Krasik, Ya. E. [Physics Department, Technion, Haifa 3200 (Israel)

2012-10-15T23:59:59.000Z

143

Longevity of Emplacement Drift Ground Support Materials, Rev. 01  

SciTech Connect

The purpose of this analysis is to evaluate the factors affecting the longevity of emplacement drift ground support materials and to develop a basis for the selection of materials for ground support that will function throughout the preclosure period of a potential repository at Yucca Mountain. The Development Plan (DP) for this analysis is given in Longevity of Emplacement Drift Ground Support Materials (CRWMS M&O 1999a). The objective of this analysis is to update the previous analysis (CRWMS M&O 2000a) to account for related changes in the Ground Control System Description Document (CRWMS M&O 2000b), the Monitored Geologic Repository Project Description Document (CRWMS M&O 1999b), and in environmental conditions, and to provide updated information on candidate ground support materials. Candidate materials for ground support are carbon steel and cement grout. Steel is mainly used for steel sets, lagging, channel, rock bolts, and wire mesh. Cement grout is only considered in the case of grouted rock bolts. Candidate materials for the emplacement drift invert are carbon steel and crushed rock ballast. Materials are evaluated for the repository emplacement drift environment based on the updated thermal loading condition and waste package design. The analysis consists of the following tasks: (1) Identify factors affecting the longevity of ground support materials for use in emplacement drifts; (2) Review existing documents concerning the behavior of candidate ground support materials during the preclosure period; (3) Evaluate impacts of temperature and radiation effects on mechanical and thermal properties of steel. Assess corrosion potential of steel at emplacement drift environment; (4) Evaluate factors affecting longevity of cement grouts for fully grouted rock bolt system. Provide updated information on cement grout mix design for fully grouted rock bolt system; and (5) Evaluate longevity of materials for the emplacement drift invert.

David H. Tang

2000-04-03T23:59:59.000Z

144

Substation Ground Grid Impedance Measurement  

Science Conference Proceedings (OSTI)

Because safety impacts all segments of the electric power industry, the integrity and conformance to standards of substation grounding systems is of paramount importance. This report summarizes field demonstrations of commercially available meters for performance evaluation of large grounding systems, including the EPRI Ground Grid Evaluator (commercially known as the Smart Ground Multimeter or SGM).

2007-12-13T23:59:59.000Z

145

Improved Smart Ground Multimeter  

Science Conference Proceedings (OSTI)

The Smart Ground Multimeter (SGM) underwent three major redesigns since its original development in the early 1980s. This report describes the latest redesign and provides useful tips on the assessment of measured data quality and on resolving measurement problems in the field.

2006-12-18T23:59:59.000Z

146

Substation grounding programs  

SciTech Connect

The five volume report comprises the user manual, installation, and validation manual and an applications guide for the SGA (Substation Grounding Analysis) software package. SGA consists of four computer programs: (1) SOMIP, (2) SMECC, (3) SGSYS, and (4) TGRND. The first three programs provide a comprehensive analysis tool for the design of substation grounding systems to meet safety standards. The fourth program, TGRND, provides a state of the art analysis tool for computing transient ground potential rise and ground system impedance. This part of the report, Volume 1, is a users manual and an installation and validation manual for the computer program SOMIP (SOil Measurement Interpretation Program). This program computes the best estimate of the parameters of a two layer soil model from usual soil resistivity measurements. Four pin or three pin soil measurements can be accommodated. In addition, it provides error bounds on the soil parameters for a given confidence level. The users manual describes data requirements and data preparation procedures. The installation and validation manual describes the computer files which make up the program SOMIP and provides two test cases for validation purposes. 4 refs.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). School of Electrical Engineering)

1992-05-01T23:59:59.000Z

147

WireGL: a scalable graphics system for clusters  

Science Conference Proceedings (OSTI)

We describe WireGL, a system for scalable interactive rendering on a cluster of workstations. WireGL provides the familiar OpenGL API to each node in a cluster, virtualizing multiple graphics accelerators into a sort-first parallel renderer with a parallel ... Keywords: cluster rendering, parallel rendering, remote graphics, scalable rendering, tiled displays, virtual graphics

Greg Humphreys; Matthew Eldridge; Ian Buck; Gordan Stoll; Matthew Everett; Pat Hanrahan

2001-08-01T23:59:59.000Z

148

Comparison of quantum confinement effects between quantum wires and dots  

E-Print Network (OSTI)

? wire . Si GaAs InAs InP CdSe CdS CdTe ? dot ? dot ? wire ?systems like InP and CdSe. Here, we like to address thesematerials: Si, InP, InAs, GaAs, CdSe, CdS, and CdTe. Unlike

Li, Jingbo; Wang, Lin-Wang

2004-01-01T23:59:59.000Z

149

Review of Polyimide Insulated Wire in Nuclear Power Plants  

Science Conference Proceedings (OSTI)

Because of its toughness and other desirable properties, Kapton insulated wire has been test-qualified for use in nuclear power plants; however, failures of this material in military aircraft have raised safety questions. This report identifies the conditions of proper use and handling that will ensure reliable functioning of the wire under nuclear plant operating and accident conditions.

1991-03-01T23:59:59.000Z

150

Analysis of Supercooled Liquid Water Measurements Using Microwave Radiometer and Vibrating Wire Devices  

Science Conference Proceedings (OSTI)

A review is made of the theoretical basis for using a vibrating wire to measure supercooled liquid water in clouds. The device consists of a vibrating wire and associated electronics added to radiosondes. The sensing wire that collects ...

Geoffrey E. Hill

1994-10-01T23:59:59.000Z

151

ORNL Publishes Study on Superconducting Wire Performance | Department of  

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

ORNL Publishes Study on Superconducting Wire Performance ORNL Publishes Study on Superconducting Wire Performance ORNL Publishes Study on Superconducting Wire Performance August 23, 2013 - 4:06pm Addthis The Department of Energy's Oak Ridge National Laboratory (ORNL) recently released a new study on advances in superconducting wire technology. A team led by ORNL's Amit Goyal demonstrated that the ability to control nanoscale imperfections in superconducting wires results in materials with excellent and customized performance. The team's findings are published in Nature Publishing Group's Scientific Reports. The full press release and link to the new report are available on ORNL's website. Dr. Goyal, a high temperature superconductivity (HTS) research at ORNL, won the Department's 2011 E.O. Lawrence Award in the inaugural category of

152

Alliant Energy (Wisconsin Power and Light) - Farm Wiring Grant Program |  

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

Alliant Energy (Wisconsin Power and Light) - Farm Wiring Grant Alliant Energy (Wisconsin Power and Light) - Farm Wiring Grant Program Alliant Energy (Wisconsin Power and Light) - Farm Wiring Grant Program < Back Eligibility Agricultural Maximum Rebate $9,000 Program Info State Wisconsin Program Type Utility Grant Program Rebate Amount $1,000 plus 50% of remaining costs Provider Alliant Energy Alliant Energy (Wisconsin Power and Light) offers a Farm Wiring Grant program to increase farm safety, productivity and efficiency. The first $1,000 of the cost of the project is covered by a grant, as well as 50% of the remaining costs (up to $9,000), for a maximum grant incentive of $10,000. Alliant Energy will inspect the facility for stray voltage and recommend improvements. Alliant's Farm Wiring Financing Program also offers

153

Intermetallic alloy welding wires and method for fabricating the same  

DOE Patents (OSTI)

Welding wires for welding together intermetallic alloys of nickel aluminides, nickel-iron aluminides, iron aluminides, or titanium aluminides, and preferably including additional alloying constituents are fabricated as two-component, clad structures in which one component contains the primary alloying constituent(s) except for aluminum and the other component contains the aluminum constituent. This two-component approach for fabricating the welding wire overcomes the difficulties associated with mechanically forming welding wires from intermetallic alloys which possess high strength and limited ductilities at elevated temperatures normally employed in conventional metal working processes. The composition of the clad welding wires is readily tailored so that the welding wire composition when melted will form an alloy defined by the weld deposit which substantially corresponds to the composition of the intermetallic alloy being joined. 4 figs.

Santella, M.L.; Sikka, V.K.

1996-06-11T23:59:59.000Z

154

Intermetallic alloy welding wires and method for fabricating the same  

SciTech Connect

Welding wires for welding together intermetallic alloys of nickel aluminides, nickel-iron aluminides, iron aluminides, or titanium aluminides, and preferably including additional alloying constituents are fabricated as two-component, clad structures in which one component contains the primary alloying constituent(s) except for aluminum and the other component contains the aluminum constituent. This two-component approach for fabricating the welding wire overcomes the difficulties associated with mechanically forming welding wires from intermetallic alloys which possess high strength and limited ductilities at elevated temperatures normally employed in conventional metal working processes. The composition of the clad welding wires is readily tailored so that the welding wire composition when melted will form an alloy defined by the weld deposit which substantially corresponds to the composition of the intermetallic alloy being joined.

Santella, Michael L. (Knoxville, TN); Sikka, Vinod K. (Oak Ridge, TN)

1996-01-01T23:59:59.000Z

155

Investigating The Use Of Ultrasound For Evaluating Aging Wiring Insulation  

E-Print Network (OSTI)

This paper reviews our initial efforts to investigate the use of ultrasound to evaluate wire insulation. Our initial model was a solid conductor with heat shrink tubing applied. In this model, various wave modes were identified. Subsequently, several aviation classes of wires (MIL-W81381, MIL-W-22759/34, and MIL-W-22759/87) were measured. The wires represented polyimide and ethylene-tetraflouroethylene insulations, and combinations of polyimide and flouropolymer plastics. Wire gages of 12, 16, and 20 AWG sizes were measured. Finally, samples of these wires were subjected to high temperatures for short periods of time to cause the insulation to degrade. Subsequent measurements indicated easily detectable changes.

Eric I. Madaras; Robert F. Anastasi

2001-01-01T23:59:59.000Z

156

Smart Wires Demo March 17, 2004 REVISED  

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

Intelligent Power Infrastructure Consortium Intelligent Power Infrastructure Consortium Smart Wires Dynamically Controllable Grid Assets Prof. Deepak Divan Associate Director, Strategic Energy Institute Director, Intelligent Power Infrastructure Consortium School of Electrical Engineering Georgia Institute of Technology 777 Atlantic Drive NW deepak.divan@ece.gatech.edu Atlanta, GA 2 Power Delivery - Major Challenge for Sustainable Energy * Wind at price parity with natural gas, retail price parity imminent for solar PV. Binding RPS mandates of 10-40% in 27 states. * To meet current reliability standards, new solar/wind plants need energy storage, back-up fossil plants & spinning reserve. * EVs require spinning reserve and back-up generation. * Excessive new T&D buildout with RPS and EVs to meet energy

157

Vol. 7,No. 7/July 1990/J. Opt. Soc. Am. B 1231 Phase and amplitude variations of optically induced  

E-Print Network (OSTI)

substates can also be induced in atomic ground states in a coherent optical Raman process. These coher on the 3s 2 S,/2 ground state of sodium, using the D, line for optical exci- tation and detection for an optically driven spin system in a J = 1/2 ground state. 1. INTRODUCTION Laser-induced coherent transients

Suter, Dieter

158

Plasma channel optical pumping device and method  

SciTech Connect

A device and method for optically pumping a gaseous laser using blackbody radiation produced by a plasma channel which is formed from an electrical discharge between two electrodes spaced at opposite longitudinal ends of the laser. A preionization device which can comprise a laser or electron beam accelerator produces a preionization beam which is sufficient to cause an electrical discharge between the electrodes to initiate the plasma channel along the preionization path. The optical pumping energy is supplied by a high voltage power supply rather than by the preionization beam. High output optical intensities are produced by the laser due to the high temperature blackbody radiation produced by the plasma channel, in the same manner as an exploding wire type laser. However, unlike the exploding wire type laser, the disclosed invention can be operated in a repetitive manner by utilizing a repetitive pulsed preionization device.

Judd, O' Dean P. (Los Alamos, NM)

1983-06-28T23:59:59.000Z

159

Further Characterization of New NiTi Wire and Rotary Endodontic ...  

Science Conference Proceedings (OSTI)

Presentation Title, Further Characterization of New NiTi Wire and Rotary ... Higher-resolution transmission electron microscopy examination of M-Wire used to...

160

Nuclear Maintenance Applications Center: Wire Brush Testing, Procurement, and Usage Guide  

Science Conference Proceedings (OSTI)

Improper design, selection, or use of wire brushes will cause the loss of wire brush filaments and can result in damage to plant equipment and nuclear fuel.

2010-12-23T23:59:59.000Z

Note: This page contains sample records for the topic "optical ground wire" 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

Selection of ENRAF gauge wire material compatible with the Hanford waste tank environment  

Science Conference Proceedings (OSTI)

This document describes the selection of the wire material that will replace the 316 SS wire in the ENRAF level indicators.

Anantatmula, R.P.

1994-12-01T23:59:59.000Z

162

Ground State Entanglement Energetics  

E-Print Network (OSTI)

We consider the ground state of simple quantum systems coupled to an environment. In general the system is entangled with its environment. As a consequence, even at zero temperature, the energy of the system is not sharp: a projective measurement can find the system in an excited state. We show that energy fluctuation measurements at zero temperature provide entanglement information. For two-state systems which exhibit a persistent current in the ground state, energy fluctuations and persistent current fluctuations are closely related. The harmonic oscillator serves to illustrate energy fluctuations in a system with an infinite number of states. In addition to the energy distribution we discuss the energy-energy time-correlation function in the zero-temperature limit.

M. Buttiker; A. N. Jordan

2005-01-04T23:59:59.000Z

163

CEUS Ground Motion Project  

Science Conference Proceedings (OSTI)

Three utilities are currently pursuing early site permits (ESPs) for possible siting of new nuclear power plant facilities in the central and eastern United States (CEUS). The geological, seismological, and engineering characteristics of a site and its environs must be investigated in sufficient scope and detail. These investigations are needed to adequately evaluate a proposed site and to provide sufficient information for estimating the site's safe shutdown earthquake (SSE) ground motion. Nuclear Regul...

2003-12-02T23:59:59.000Z

164

Ground Squirrels and Gophers  

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

Squirrels and Gophers Squirrels and Gophers Nature Bulletin No. 224-A April 2, 1966 Forest Preserve District of Cook County Seymour Simon, President Roland F. Eisenbeis, Supt. of Conservation GROUND SQUIRRELS AND GOPHERS On sunny summer days, a dusty-colored animal with yellowish and brown stripes, about the size of a small rat, often may be noticed creeping through the grass of prairies, pastures, golf courses or lawns. Watch him. He pauses every few feet to sit up, look and listen for a moment. Nervous and timid, he crouches low at every distant sound or passing shadow. Startle him and he scurries away, and then may suddenly halt and freeze, bolt upright, as stiff and straight as a stake driven in the ground. If approached, he gives a loud shrill trilling whistle and, with a flip of his tail, pops out of sight. Watch that spot closely and, in less than a minute, a snaky head appears. Be quiet. He has many enemies above ground and he also has a lot of curiosity. Presently he sits up upon his haunches again.

165

Beam Position and Phase Monitor - Wire Mapping System  

SciTech Connect

The Los Alamos Neutron Science Center (LANSCE) deploys many cylindrical beam position and phase monitors (BPPM) throughout the linac to measure the beam central position, phase and bunched-beam current. Each monitor is calibrated and qualified prior to installation to insure it meets LANSCE requirements. The BPPM wire mapping system is used to map the BPPM electrode offset, sensitivity and higher order coefficients. This system uses a three-axis motion table to position the wire antenna structure within the cavity, simulating the beam excitation of a BPPM at a fundamental frequency of 201.25 MHz. RF signal strength is measured and recorded for the four electrodes as the antenna position is updated. An effort is underway to extend the systems service to the LANSCE facility by replacing obsolete electronic hardware and taking advantage of software enhancements. This paper describes the upgraded wire positioning system's new hardware and software capabilities including its revised antenna structure, motion control interface, RF measurement equipment and Labview software upgrades. The main purpose of the wire mapping system at LANSCE is to characterize the amplitude response versus beam central position of BPPMs before they are installed in the beam line. The wire mapping system is able to simulate a beam using a thin wire and measure the signal response as the wire position is varied within the BPPM aperture.

Watkins, Heath A [Los Alamos National Laboratory; Shurter, Robert B. [Los Alamos National Laboratory; Gilpatrick, John D. [Los Alamos National Laboratory; Kutac, Vincent G. [Los Alamos National Laboratory; Martinez, Derwin [Los Alamos National Laboratory

2012-04-10T23:59:59.000Z

166

Transmission Characteristics Evaluation Under Bad Weather Conditions in Optical Wireless Links with Different Optical Transmission Windows  

Science Conference Proceedings (OSTI)

Optical wireless links offer gigabit per second data rates and low system complexity. For ground space and or terrestrial communication systems, these links suffer from atmospheric loss mainly due to fog, scintillation and precipitation. Optical Wireless ... Keywords: Bad weather effects, Empirical model, Rain Attenuation, Rain Scattering, Specific attenuation, Visibility, Wireless Optics (WOs)

Ahmed Nabih Rashed; Mohamed M. El-Halawany

2013-07-01T23:59:59.000Z

167

The Effects of a Hydrogen Environment on the Lifetime of Small-Diameter Drift Chamber Anode Wires  

DOE Green Energy (OSTI)

Possible deterioration of anode sense wires used in a hydrogen-filled neutron detector is investigated. Wires were loaded with free weights and put into a wire detector environment. Stainless Steel, Tungsten, and Platinum wires did not break after exposure to charge equivalent to many wire lifetimes. Furthermore, exposure to hydrogen gas caused no noticeable surface degradation or change in wire yield strength.

King, J; Smith, T; Kunkle, J; Castelaz, J; Thomson, S; Burstein, Z; Bernstein, A; Rosenberg, L; Hefner, M

2005-04-29T23:59:59.000Z

168

The Modeling of Vibration Damping in SMA Wires  

SciTech Connect

Through a mathematical and computational model of the physical behavior of shape memory alloy wires, this study shows that localized heating and cooling of such materials provides an effective means of damping vibrational energy. The thermally induced pseudo-elastic behavior of a shape memory wire is modeled using a continuum thermodynamic model and solved computationally as described by the authors in [23]. Computational experiments confirm that up to 80% of an initial shock of vibrational energy can be eliminated at the onset of a thermally-induced phase transformation through the use of spatially-distributed transformation regions along the length of a shape memory alloy wire.

Reynolds, D R; Kloucek, P; Seidman, T I

2003-09-16T23:59:59.000Z

169

Plasmon hybridization in parallel nano-wire systems  

Science Conference Proceedings (OSTI)

We apply the plasmon hybridization method to a double-nano-wire system, providing a simple and intuitive description of the plasmon excitations in the system. We apply the two-center cylindrical coordinate system for mathematical convenience and find an explicit form of the surface plasmon oscillations, in terms of the interaction between the bare plasmon modes of the individual surfaces of the nano-wires. We present numerical results to display how the plasmon excitations of the system depend on nano-wire separation when there is no angular momentum transfer, i.e., when m = 0.

Moradi, Afshin [Department of Nano Science, Kermanshah University of Technology, Kermanshah 67178-63766 (Iran, Islamic Republic of) and Department of Nano Science, Institute for Studies in Theoretical Physics and Mathematics (IPM), Tehran 19395-5531 (Iran, Islamic Republic of)

2011-06-15T23:59:59.000Z

170

Wire bond vibration of forward pixel tracking detector of CMS  

SciTech Connect

Wire bonds of the Forward Pixel (FPix) tracking detectors are oriented in the direction that maximizes Lorentz Forces relative to the 4 Tesla field of the Compact Muon Solenoid (CMS) Detector's magnet. The CMS Experiment is under construction at the Large Hadron Collider at CERN, Geneva, Switzerland. We were concerned about Lorentz Force oscillating the wires at their fundamental frequencies and possibly fracturing or breaking them at their heels, as happened with the CDF wire bonds. This paper reports a study to understand what conditions break such bonds.

Atac, M.; /Fermilab; Gobbi, B.; /Northwestern U.; Kwan, S.; Pischalnikov, Y.; /Fermilab; Spencer, E.; /Northwestern U.; Sellberg, G.; Pavlicek, V.; /Fermilab

2006-10-01T23:59:59.000Z

171

Addressing water vaporization in the vicinity of an exploding wire  

SciTech Connect

The phase state of thin ({approx}1 {mu}m) layer of water adjacent to the surface of rapidly heated thin wire 100{+-}50 {mu}m in radius is analyzed by computer hydrodynamic calculation. It is shown that when heating of a wire to a temperature of 420 deg. C is achieved in less than {approx}500 ns, the trajectory of the phase state is contained in the liquid part of the phase diagram. This suggests additional proof of and an explanation for the absence of shunting plasma discharge in fast underwater electrical wire explosions.

Grinenko, A.; Gurovich, V. Tz.; Krasik, Ya. E.; Dolinsky, Yu. [Physics Department, Technion, 32000 Haifa (Israel); Department of Mechanical Engineering, Ben Gurion University, 84105 Beer-Sheva (Israel)

2006-12-01T23:59:59.000Z

172

Analytic theory of optical nano-plasmonic metamaterials  

E-Print Network (OSTI)

Recent advances in nano-fabrication techniques allow for the manufacture of optical metamaterials, bringing their unique and extra-ordinary properties to the visible regime and beyond. However, an analytical description of optical nano-plasmonic metamaterials is challenging due to the characteristic optical behaviour of metals. Here we present an analytical theory that allows to bring established microwave metamaterials models to optical wavelengths. This method is implemented for nano-scaled plasmonic wire-mesh and tri-helical metamaterials, and we obtain an accurate prediction for their dispersive behaviour at optical and near-IR wavelengths.

Demetriadou, Angela

2013-01-01T23:59:59.000Z

173

Is Virga Rain That Evaporates before Reaching the Ground?  

Science Conference Proceedings (OSTI)

The visual phenomenon called virga, a sudden change in the brightness of a precipitation shaft below a cloud, is commonly attributed to evaporation of raindrops. It is said to be rain that does not reach the ground. The optical thickness of an ...

Alistair B. Fraser; Craig F. Bohren

1992-08-01T23:59:59.000Z

174

Exploiting level sensitive latches in wire pipelining  

E-Print Network (OSTI)

The present research presents procedures for exploitation of level sensitive latches in wire pipelining. The user gives a Steiner tree, having a signal source and set of destination or sinks, and the location in rectangular plane, capacitive load and required arrival time at each of the destinations. The user also defines a library of non-clocked (buffer) elements and clocked elements (flip-flop and latch), also known as synchronous elements. The first procedure performs concurrent repeater and synchronous element insertion in a bottom-up manner to find the minimum latency that may be achieved between the source and the destinations. The second procedure takes additional input (required latency) for each destination, derived from previous procedure, and finds the repeater and synchronous element assignments for all internal nodes of the Steiner tree, which minimize overall area used. These procedures utilize the latency and area advantages of latch based pipelining over flip-flop based pipelining. The second procedure suggests two methods to tackle the challenges that exist in a latch based design. The deferred delay padding technique is introduced, which removes the short path violations for latches with minimal extra cost.

Seth, Vikram

2004-12-01T23:59:59.000Z

175

Ground-Based Remote Sensing of Stratocumulus Properties during CLARA, 1996  

Science Conference Proceedings (OSTI)

A method is presented to obtain droplet concentration for water clouds from ground-based remote sensing observations. It relies on observations of cloud thickness, liquid water path, and optical extinction near the cloud base. The method was ...

R. Boers; H. Russchenberg; J. Erkelens; V. Venema; A. van Lammeren; A. Apituley; S. Jongen

2000-02-01T23:59:59.000Z

176

An Updated Assessement of Copper Wire Thefts from Electric Utilities -  

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

An Updated Assessement of Copper Wire Thefts from Electric An Updated Assessement of Copper Wire Thefts from Electric Utilities - October 2010 An Updated Assessement of Copper Wire Thefts from Electric Utilities - October 2010 The U.S. Department of Energy (DOE), Office of Electricity Delivery and Energy Reliability monitors changes, threats, and risks to the energy infrastructure in the United States. This report updates a previously published report on copper wire theft. The combined efforts of electric utilities, lawmakers, scrap metal dealers, and local law enforcement have succeeded in reducing the problem. Updated Assessment-Copper-Final October 2010.pdf More Documents & Publications Investigation Letter Report: I11IG002 Semiannual Report to Congress: for the first half of Fiscal Year (FY) 1998 Energy Infrastructure Events and Expansions Year-in-Review 2010

177

Building quantum wires: the long and the short of it  

Science Conference Proceedings (OSTI)

As quantum computing moves closer to reality the need for basic architectural studies becomes more pressing. Quantum wires, which transport quantum data, will be a fundamental component in all anticipated silicon quantum architectures. In this paper, ...

Mark Oskin; Frederic T. Chong; Isaac L. Chuang; John Kubiatowicz

2003-06-01T23:59:59.000Z

178

Alliant Energy (Wisconsin Power and Light) - Farm Wiring Financing Program  

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

Financing Financing Program Alliant Energy (Wisconsin Power and Light) - Farm Wiring Financing Program < Back Eligibility Agricultural Savings Category Other Appliances & Electronics Commercial Lighting Lighting Maximum Rebate $20,000 Program Info State Wisconsin Program Type Utility Loan Program Rebate Amount Varies Provider Alliant Energy Alliant Energy (Wisconsin Power and Light) offers a farm wiring financing program to increase farm safety, productivity and efficiency, while decreasing the potential for stray voltage on livestock farms. To start, Alliant Energy will inspect the facility for stray voltage and recommend improvements. Loans of up to $20,000 at 3% are available for wiring or efficiency equipment as part of this program. In addition to this program, Alliant-WP&L offers the Farm Wiring Grant

179

Ductile alloy and process for preparing composite superconducting wire  

DOE Patents (OSTI)

An alloy for the commercial production of ductile superconducting wire is prepared by melting together copper and at least 15 weight percent niobium under non-oxygen-contaminating conditions, and rapidly cooling the melt to form a ductile composite consisting of discrete, randomly distributed and orientated dendritic-shaped particles of niobium in a copper matrix. As the wire is worked, the dendritric particles are realigned parallel to the longitudinal axis and when drawn form a plurality of very fine ductile superconductors in a ductile copper matrix. The drawn wire may be tin coated and wound into magnets or the like before diffusing the tin into the wire to react with the niobium. Impurities such as aluminum or gallium may be added to improve upper critical field characteristics.

Verhoeven, John D. (Ames, IA); Finnemore, Douglas K. (Ames, IA); Gibson, Edwin D. (Ames, IA); Ostenson, Jerome E. (Ames, IA)

1983-03-29T23:59:59.000Z

180

Alliant Energy (Wisconsin Power and Light)- Farm Wiring Grant Program  

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

Alliant Energy (Wisconsin Power & Light) offers a Farm Wiring Grant program to increase farm safety, productivity and efficiency. The first $1,000 of the cost of the project is covered by a...

Note: This page contains sample records for the topic "optical ground wire" 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

Reliability of Wedge Wire Bonds Subjected to Ultrasonic Welding ...  

Science Conference Proceedings (OSTI)

This paper presents the effect of the ultrasonic welding lid attachment process on the reliability and mechanical strength of 1.0 and 1.5 mil gold wedge wire...

182

Delivery optimization for a make to order custom wire mill  

E-Print Network (OSTI)

In the face of growing competition in the Tantalum business, H.C.Starck's management is minimizing the delivery time for custom-made capacitor-grade tantalum wire products. H.C. Starck, Inc., Newton, Massachusetts faces ...

Slivinskiy, Andrey L

2005-01-01T23:59:59.000Z

183

Diagnostics of underwater electrical wire explosion through a time- and space-resolved hard x-ray source  

SciTech Connect

A time- and space-resolved hard x-ray source was developed as a diagnostic tool for imaging underwater exploding wires. A {approx}4 ns width pulse of hard x-rays with energies of up to 100 keV was obtained from the discharge in a vacuum diode consisting of point-shaped tungsten electrodes. To improve contrast and image quality, an external pulsed magnetic field produced by Helmholtz coils was used. High resolution x-ray images of an underwater exploding wire were obtained using a sensitive x-ray CCD detector, and were compared to optical fast framing images. Future developments and application of this diagnostic technique are discussed.

Sheftman, D.; Shafer, D.; Efimov, S.; Gruzinsky, K.; Gleizer, S.; Krasik, Ya. E. [Physics Department, Technion, Haifa 32000 (Israel)

2012-10-15T23:59:59.000Z

184

Wire rope superconducting cable for diurnal load leveling SMES  

DOE Green Energy (OSTI)

The design of a wire rope cable for a superconducting magnetic energy storage (SMES) unit is discussed. The superconducting wires in the rope permit the passage of large currents in the relatively small conductors of the windings and hence cause large electromagnetic forces to act on the rope. The diameter of the rope, from a strength point of view, can be considerably reduced by supporting the rope at various points along its length.

Costello, G.A.

1980-01-01T23:59:59.000Z

185

Process for producing fine and ultrafine filament superconductor wire  

DOE Patents (OSTI)

A process for producing a superconductor wire made up of a large number of round monofilament rods is provided for, comprising assembling a multiplicity of round monofilaments inside each of a multiplicity of thin wall hexagonal tubes and then assembling a number of said thin wall hexagonal tubes within an extrusion can and subsequently consolidating, extruding and drawing the entire assembly down to the desired wire size.

Kanithi, Hem C. (15 Briar Ct., Chesire, CT 06410)

1992-01-01T23:59:59.000Z

186

Repeatability of measurements of residential magnetic fields and wire codes  

SciTech Connect

Several epidemiological studies have been based on wire codes (i.e., categories of electrical wiring configurations near residences) or on in-home spot measurements of magnetic flux density (MFD) as surrogates for short- and long-term exposure of children and adults to residential magnetic fields. We used wire code and MFD measurements that were made in 81 Colorado homes in 1985 and again in 1990 to assess their repeatability over periods of 0-24 h and 5 years. These homes, a subset of those lived in by subjects from the case-control study of Savitz et al. [Am J Epidemiol 128:21-38, 1988], were divided into four approximately equally sized groups that were differentiated by wire code and by case-control status. Eight homes were assigned wire codes in 1990 that differed from the 1985 coding of Savitz and colleagues [1988]; of these, seven were coded as high-current configuration (HCC) and one as low-current configuration (LCC) in 1985. Overall, 37 homes were coded as HCC in 1990 compared with 38 homes in 1985. Coding differences were due to differing distance measurements (four homes), differing thick vs. thin categorization of primary-distribution line-conductor sizes (two homes), differing first-span vs. second-span categorization of secondary wires (one home), and physical changes in proximate electrical wiring (one home). Coefficients of correlation between MFD spot measurements that were separated in time by 0-24 h range between 0.70 and 0.90. The coefficient between spot measurements made in 1985 and then again in 1990 is 0.70. These coefficients are similar for HCC and LCC homes and do not depend on whether residential appliances were turned on or off. The data show (at least for the portion of Colorado studied) that residential wire code and, more surprisingly, spot MFD measurements, are fairly reliable over 0-24-h and 5-year periods.

Dovan, T.; Kaune, W.T.; Savitz, D.A. (ENERTECH Consultants, Campbell, CA (United States))

1993-01-01T23:59:59.000Z

187

Process for producing fine and ultrafine filament superconductor wire  

DOE Patents (OSTI)

A process for producing a superconductor wire made up of a large number of round monofilament rods is provided for, comprising assembling a multiplicity of round monofilaments inside each of a multiplicity of thin wall hexagonal tubes and then assembling a number of said thin wall hexagonal tubes within an extrusion can and subsequently consolidating, extruding and drawing the entire assembly down to the desired wire size. 8 figs.

Kanithi, H.C.

1992-02-18T23:59:59.000Z

188

Closed form solutions to simultaneous buffer insertion/sizing and wire sizing  

Science Conference Proceedings (OSTI)

In this paper, we consider the delay minimization problem of an interconnect wire by simultaneously considering buffer insertion, buffer sizing and wire sizing. We consider three cases, namely using no buffer (i.e., wire sizing alone), using a given ... Keywords: buffer insertion, buffer sizing, closed form solution, interconnect optimization, wire sizing

Chris Chu; D. F. Wong

2001-07-01T23:59:59.000Z

189

Correlation of the electrical and space-time characteristics during electrical explosion of wires  

SciTech Connect

The electrical and space-time characteristics during electrical explosion of wires is studied. (AIP)

Litvinenko, V.P.; Koval' , S.V.

1983-04-01T23:59:59.000Z

190

Processing and mechanical behavior of hypereutectoid steel wires  

DOE Green Energy (OSTI)

Hypereutectoid steels have the potential for dramatically increasing the strength of wire used in tire cord and in other high strength wire applications. The basis for this possible breakthrough is the elimination of a brittle proeutectoid network that can form along grain boundaries if appropriate processing procedures and alloy additions are used. A review is made of work done by Japanese and other researchers on eutectoid and mildly hypereutectoid wires. A linear extrapolation of the tensile strength of fine wires predicts higher strengths at higher carbon contents. The influence of processing, alloy additions and carbon content in optimizing the strength, ductility and fracture behavior of hypereutectoid steels is presented. It is proposed that the tensile strength of pearlitic wires is dictated by the fracture strength of the carbide lamella at grain boundary locations in the carbide. Methods to improve the strength of carbide grain boundaries and to decrease the carbide plate thickness will contribute to enhancing the ultrahigh strength obtainable in hypereutectoid steel wires. 23 refs., 13 figs., 1 tab.

Lesuer, D.R.; Syn, C.K.; Sherby, O.D.; Kim, D.K.

1996-06-25T23:59:59.000Z

191

Method of fabricating a homogeneous wire of inter-metallic alloy  

DOE Patents (OSTI)

A method for fabricating a homogeneous wire of inter-metallic alloy comprising the steps of providing a base-metal wire bundle comprising a metal, an alloy or a combination thereof; working the wire bundle through at least one die to obtain a desired dimension and to form a precursor wire; and, controllably heating the precursor wire such that a portion of the wire will become liquid while simultaneously maintaining its desired shape, whereby substantial homogenization of the wire occurs in the liquid state and additional homogenization occurs in the solid state resulting in a homogenous alloy product.

Ohriner, Evan Keith (Knoxville, TN); Blue, Craig Alan (Knoxville, TN)

2001-01-01T23:59:59.000Z

192

Investigation of Ground-Fault Protection Devices for Photovoltaic Power Systems Applications  

Science Conference Proceedings (OSTI)

Photovoltaic (PV) power systems, like other electrical systems, may be subject to unexpected ground faults. Installed PV systems always have invisible elements other than those indicated by their electrical schematics. Stray inductance, capacitance and resistance are distributed throughout the system. Leakage currents associated with the PV modules, the interconnected array, wires, surge protection devices and conduit add up and can become large enough to look like a ground-fault. PV systems are frequently connected to other sources of power or energy storage such as batteries, standby generators, and the utility grid. This complex arrangement of distributed power and energy sources, distributed impedance and proximity to other sources of power requires sensing of ground faults and proper reaction by the ground-fault protection devices. The different dc grounding requirements (country to country) often add more confusion to the situation. This paper discusses the ground-fault issues associated with both the dc and ac side of PV systems and presents test results and operational impacts of backfeeding commercially available ac ground-fault protection devices under various modes of operation. Further, the measured effects of backfeeding the tripped ground-fault devices for periods of time comparable to anti-islanding allowances for utility interconnection of PV inverters in the United States are reported.

BOWER,WARD I.; WILES,JOHN

2000-10-03T23:59:59.000Z

193

Ground grid design changes due to potential rise limits outside substations  

SciTech Connect

To ensure safe grounding for personnel and to provide for correct operation of relays, several design factors are critical to assessing the adequacy of a station ground grid design. These difficult to alter parameters are soil resistivity, clearing times for single line to ground station faults, size and location of the substation, and the magnitude of the single line to ground fault current. These are the critical parameters for the grounding system, leaving the designer with the grid area, grid geometry, wire size, surface material, number of ground rods, and burial depth as the tools for reducing step and touch potentials to adequate levels. Grounding practices for substations are based on maintaining step and touch potentials below the limits described in IEEE-80. Guide for AC Substation Grounding. Recently, requirements to limit step and touch potentials outside the substation perimeter were proposed by particular government agencies in Commonwealth Edison's service territory. This limit imposes design changes that would increase construction costs and prevent locating substation at existing sites. This paper compares the design changes needed to meet lower limits with a standard installation designed according to the IEEE-80 guide.

Lodwig, S.G. (Commonwealth Edison Co., Chicago, IL (United States))

1992-01-01T23:59:59.000Z

194

Ground potential rise monitor  

SciTech Connect

A device and method for detecting ground potential rise (GPR) comprising positioning a first electrode and a second electrode at a distance from each other into the earth. The voltage of the first electrode and second electrode is attenuated by an attenuation factor creating an attenuated voltage. The true RMS voltage of the attenuated voltage is determined creating an attenuated true RMS voltage. The attenuated true RMS voltage is then multiplied by the attenuation factor creating a calculated true RMS voltage. If the calculated true RMS voltage is greater than a first predetermined voltage threshold, a first alarm is enabled at a local location. If user input is received at a remote location acknowledging the first alarm, a first alarm acknowledgment signal is transmitted. The first alarm acknowledgment signal is then received at which time the first alarm is disabled.

Allen, Zachery W. (Mandan, ND); Zevenbergen, Gary A. (Arvada, CO)

2012-04-03T23:59:59.000Z

195

Diamond Wire Saw for Precision Machining of Laser Target Components  

SciTech Connect

The fabrication of precision laser targets requires a wide variety of specialized mesoscale manufacturing techniques. The diamond wire saw developed in this study provides the capability to precisely section meso-scale workpieces mounted on the assembly stations used by the Target Fabrication Group. This new capability greatly simplifies the fabrication of many types of targets and reduces the time and cost required to build the targets. A variety of materials are used to fabricate targets, including metals, plastics with custom designed chemical formulas, and aerogels of various densities. The materials are usually provided in the form of small pieces or cast rods that must be machined to the required shape. Many of these materials, such as metals and some plastics, can be trimmed using a parting tool on a diamond turning machine. However, other materials, such as aerogels and brittle materials, cannot be adequately cut with a parting tool. In addition, the geometry of the parts often requires that the workpieces be held in a special assembly station, which excludes the use of a parting tool. In the past, these materials were sectioned using a small, handheld coping saw that used a diamond-impregnated wire as a blade. This miniature coping saw was effective, but it required several hours to cut through certain materials. Furthermore, the saw was guided by hand and often caused significant damage to fragile aerogels. To solve these problems, the diamond wire saw shown in Figure 1 was developed. The diamond wire saw is designed to machine through materials that are mounted in the Target Fabrication Group's benchtop assembly stations. These assembly stations are the primary means of aligning and assembling target components, and there is often a need to machine materials while they are mounted in the assembly stations. Unfortunately, commercially available saws are designed for very different applications and are far too large to be used with the assembly stations. Therefore, a custom diamond wire saw was designed and constructed. The diamond wire saw cuts through workpieces using a continuous loop of diamond-impregnated wire of length 840 mm. The wire loop runs around several idler pulleys and is driven by a simple geared DC motor that rotates at 17 rpm. The linear speed of the wire is 107 inches/minute. The saw is oriented at an angle of 20{sup o} from horizontal, so the operator can view the wire through the cutout at the front end of the saw. When looking through a microscope or camera with a horizontal line of sight, the operator can clearly see the wire as it cuts through the workpiece, as shown in the right side of Figure 1. The saw is mounted on a two-axis stage that allows the operator to align the wire with the workpiece. To cut through the workpiece, the operator drives the wire through the workpiece by turning the feed micrometer. An image of the interior of the diamond wire saw appears in Figure 2. This picture was taken after removing the protective cover plate from the saw.

Bono, M J; Bennett, D W

2005-08-08T23:59:59.000Z

196

Ground Water Management Regulations (Louisiana) | Department...  

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

Ground Water Management Regulations (Louisiana) Ground Water Management Regulations (Louisiana) Eligibility Agricultural Construction Developer Fuel Distributor Industrial...

197

Fiber Optic Cables in Overhead Transmission Corridors: A State-of-the-Art Review  

Science Conference Proceedings (OSTI)

Many electric utilities are installing high capacity fiber optic cables and wires on their high voltage lines to satisfy their own internal communication needs and to gain additional revenues by leasing excess capacity to telecommunication network providers. This report presents a review and evaluation of the state-of-the-art in using fiber optic technology in high voltage corridors.

1997-11-26T23:59:59.000Z

198

Design data brochure for a pyramidal optics solar system  

DOE Green Energy (OSTI)

This Design Data Brochure provides information on a Pyramidal Optics Solar System for solar heating and domestic hot water. The system is made up of the collecting, storage, and distribution subsystems. Contained in the brochure are such items as system description, available accessories, installation arrangements, physical data, piping and wiring diagrams, and guide specifications.

Not Available

1980-09-01T23:59:59.000Z

199

Extrusion of metal oxide superconducting wire, tube or ribbon  

DOE Patents (OSTI)

A process and apparatus for extruding a superconducting metal oxide composition YBa{sub 2}Cu{sub 3}O{sub 7-x} provides a wire (tube or ribbon) having a cohesive mass and a degree of flexibility together with enhanced electrical properties. Wire diameters in the range of 6--85 mils have been produced with smaller wires on the order of 10 mils in diameter exhibiting enhanced flexibility for forming braided, or multistrand, configurations for greater current carrying capacity. The composition for extrusion contains a polymeric binder to provide a cohesive mass to bind the particles together during the extrusion process with the binder subsequently removed at lower temperatures during sintering. The composition for extrusion further includes a deflocculent, an organic plasticizer and a solvent which also are subsequently removed during sintering. Electrically conductive tubing with an inner diameter of 52 mil and an outer diameter of 87--335 mil has also been produced. Flat ribbons have been produced in the range of 10--125 mil thick by 100--500 mil wide. The superconducting wire, tube or ribbon may include an outer ceramic insulating sheath co-extruded with the wire, tubing or ribbon.

Dusek, J.T.

1990-01-01T23:59:59.000Z

200

Extrusion of metal oxide superconducting wire, tube or ribbon  

DOE Patents (OSTI)

A process for extruding a superconducting metal oxide composition YBa.sub.2 Cu.sub.3 O.sub.7-x provides a wire (tube or ribbon) having a cohesive mass and a degree of flexibility together with enhanced electrical properties. Wire diameters in the range of 6-85 mils have been produced with smaller wires on the order of 10 mils in diameter exhibiting enhanced flexibility for forming braided, or multistrand, configurations for greater current carrying capacity. The composition for extrusion contains a polymeric binder to provide a cohesive mass to bind the particles together during the extrusion process with the binder subsequently removed at lower temperatures during sintering. The composition for extrusion further includes a deflocculent, an organic plasticizer and a solvent which also are subsequently removed during sintering. Electrically conductive tubing with an inner diameter of 52 mil and an outer diameter of 87-355 mil has also been produced. Flat ribbons have been produced in the range of 10-125 mil thick by 100-500 mil wide. The superconducting wire, tube or ribbon may include an outer ceramic insulating sheath co-extruded with the wire, tubing or ribbon.

Dusek, Joseph T. (Lombard, IL)

1993-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "optical ground wire" 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

First Measurements and Results With a Stretched Wire Test Setup  

Science Conference Proceedings (OSTI)

The LINAC Coherent Light Source [LCLS] is a free electron laser, designed to produce high brilliant X-ray beams using Self Amplified Spontaneous Emission [SASE]. Due to the physics of SASE, the electron beam has to be held very precisely on the same trajectory as the X-ray light beam generated by the undulator magnets. To optimize the SASE output, trajectory deviations between both beams have to be minimized to a few micrometers along the entire undulator section and held stable over the time period between beam-based-alignment processes. Consequently, extremely high position stability of all magnets in the undulator section is required to operate the LCLS successfully. The knowledge of any magnet movement exceeding few micrometers during periods of several weeks is essential for efficient X-ray generation. A well known principle of monitoring transverse component positions along beam lines is the application of stretched wires, associated with suitable wire position sensors and electronics. The particular challenge at LCLS is the required wire system performance in conjunction with the length of the undulator section and the large number of monitors. Verification of system stability and resolution under real conditions is the primary goal of this test setup. A stretched wire test setup has been implemented to gain experience for the final design of a wire system, which will meet the position monitoring requirements in the LCLS undulator section. The report briefly introduces the system's architecture and describes first measurements and results.

Peters, Franz

2010-12-13T23:59:59.000Z

202

LANL breaks ground on key sediment control project  

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

Sediment control project Sediment control project LANL breaks ground on key sediment control project Called "grade-control" structures, the approximately $2 million features are up to eight feet high and made of rocks packed tightly into wire enclosures. November 5, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials.

203

EPA Final Ground Water Rule  

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

Office of Nuclear Safety and Environment Office of Nuclear Safety and Environment Nuclear Safety and Environment Information Brief HS-20-IB-2007-02 (March 2007) EPA Final Ground Water Rule Safe Drinking Water Act: National Primary Drinking Water Regulations Ground Water Rule - 40 CFR Parts 9, 141 and 142 Final Rule: 71 FR 65574 Effective Date: January 8, 2007 1 RULE SYNOPSIS On November 8, 2006, the U.S. Environmental Protection Agency (EPA) published a final Ground Water Rule (GWR) to promote increased protection against microbial pathogens that may be present in public water systems (PWSs) that use ground water sources for their supply (these systems are known as ground water systems). This Rule establishes a risk-targeted approach

204

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers  

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

Vacancy-Induced Nanoscale Wire Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers Print Wednesday, 21 December 2005 00:00 Low-dimensional materials have gained much attention not only because of the nonstop march toward miniaturization in the electronics industry but also for the exotic properties that are inherent in their small size. One approach for creating low-dimensional structures is to exploit the nanoscale or atomic-scale features that exist naturally in the three-dimensional (bulk) form of materials. By this means, a group from the University of Washington has demonstrated a new way of creating one-dimensional nanoscale structures (nanowires) in the compound gallium selenide. In short, ordered lines of structural vacancies in the material stimulate the growth of "one-dimensional" structures less than 1 nanometer in width.

205

Annual Coded Wire Program Missing Production Groups, 1996 Annual Report.  

DOE Green Energy (OSTI)

In 1989 the Bonneville Power Administration (BPA) began funding the evaluation of production groups of juvenile anadromous fish not being coded-wire tagged for other programs. These groups were the ``Missing Production Groups``. Production fish released by the US Fish and Wildlife Service (USFWS) without representative coded-wire tags during the 1980`s are indicated as blank spaces on the survival graphs in this report. The objectives of the ``Missing Production Groups`` program are: to estimate the total survival of each production group, to estimate the contribution of each production group to various fisheries, and to prepare an annual report for all USFWS hatcheries in the Columbia River basin. Coded-wire tag recovery information will be used to evaluate the relative success of individual brood stocks. This information can also be used by salmon harvest managers to develop plans to allow the harvest of excess hatchery fish while protecting threatened, endangered, or other stocks of concern.

Pastor, S.M. [Fish and Wildlife Service, Vancouver, WA (United States). Columbia River Fisheries Program Office

1997-07-01T23:59:59.000Z

206

Wired World-Wide Web Interactive Remote Event Display  

Science Conference Proceedings (OSTI)

WIRED (World-Wide Web Interactive Remote Event Display) is a framework, written in the Java{trademark} language, for building High Energy Physics event displays. An event display based on the WIRED framework enables users of a HEP collaboration to visualize and analyze events remotely using ordinary WWW browsers, on any type of machine. In addition, event displays using WIRED may provide the general public with access to the research of high energy physics. The recent introduction of the object-oriented Java{trademark} language enables the transfer of machine independent code across the Internet, to be safely executed by a Java enhanced WWW browser. We have employed this technology to create a remote event display in WWW. The combined Java-WWW technology hence assures a world wide availability of such an event display, an always up-to-date program and a platform independent implementation, which is easy to use and to install.

De Groot, Nicolo

2003-05-07T23:59:59.000Z

207

Analysis of Compact Cylindrical Wire Array Implosions with Brass and also by Alternating Brass and Al wires on the 1-MA COBRA Generator  

SciTech Connect

Implosions from compact cylindrical wire arrays (CCWA) with mid-Z and low-Z wires were carried out on the 1-MA COBRA generator at Cornell University. In particular, the CCWA used either Brass 310 (70% Cu, 30% Zn) wires or a combination of Brass 310 and Al 5056 (95% Al, 5% Mg) wires arranged in an alternating pattern. A total of 16 wires were used on either a 6 or 4 mm diameter array. The diagnostic suite included a bolometer, fast x-ray detectors, a time-integrated spectrometer, and a streak camera. A higher energy output was observed from bolometer measurements when alternating the brass and Al wires compared to using only the brass wires. This study will focus mainly on the spectroscopy of the brass and alternating brass and Al CCWA by applying the non-LTE kinetic models of Cu and Zn to account for the L-shell radiation. The resulting plasma parameters, electron density and electron temperature, will be discussed and compared for the CCWA with only brass wires and alternating brass and Al wires. The simulations with the novel Wire Ablation Dynamics Model that account for wire ablation will be performed to analyze the differences in implosion dynamics of the uniform and alternating compact cylindrical arrays.

Ouart, N. D.; Yilmaz, M. F.; Safronova, A. S.; Kantsyrev, V. L.; Esaulov, A. A.; Williamson, K. M.; Osborne, G. C.; Shrestha, I.; Weller, M. E. [Physics Department, University of Nevada, Reno, NV 89557 (United States); McBride, R. D.; Knapp, P. F.; Bell, K. S.; Pikuz, S. A.; Shelkovenko, T. A.; Greenly, J. B.; Hammer, D. A.; Kusse, B. R. [Cornell University, Ithaca, NY 14853 (United States)

2009-01-21T23:59:59.000Z

208

Optical Radiation  

Science Conference Proceedings (OSTI)

*. Bookmark and Share. Optical Radiation Measurements. Fees for services are located directly below the technical contacts ...

2013-04-09T23:59:59.000Z

209

OPTICS5  

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

Optics5 (5.1.02) Knowledge Base Optics5 (5.1.02) Knowledge Base Last Updated: 09/11/13 Table of Contents INSTALLATION EXECUTION bullet ** Operating Systems -- Microsoft Windows 7 and Vista ** bullet ** Running Optics5 with Microsoft Windows 7 and Vista ** bullet ** Running Optics5 with Microsoft Windows 7 and Vista 64 bit ** Optics5 may not work correctly with regional/locale settings using "," as a decimal separator. bullet Which Windows operating systems can be used to run Optics? "Class Does Not Support Automation or Expected Interface" error message bullet How much hard disk space should be available to install Optics? Optics user manual bullet I receive a virus warning (nimda-virus) when installing Optics. What should I do? NFRC Procedure for Applied Films bullet I have installed Optics but I can't find the program or the icon.

210

Introducing SAM (Sun and Aureole Measurement), a New, Ground-based  

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

Introducing SAM (Sun and Aureole Measurement), a New, Ground-based Introducing SAM (Sun and Aureole Measurement), a New, Ground-based Capability for Measuring Cloud Optical Properties DeVore, John Visidyne, Inc. Stair, A Visidyne McClatchey, Robert McClatchey Associates Category: Instruments Visidyne has developed a new, ground-based capability for the remote measurement of cloud and aerosol optical properties. Named SAM, for Sun and Aureole Measurement, this system makes precise measurements of the radiance profile of the solar disk and aureole. The radiance of the solar disk affords a definitive measure of the column optical depth when corrected for forward scattering. The aureole profile is a measure of the forward scattering properties of the particles in the column and can be used to correct the optical depth. The aureole profile can also be used to derive

211

A Fiber Optic Seismic Sensor for Unattended Ground Sensing Applications  

E-Print Network (OSTI)

as promising technologies for many applications, such as intruder detection and perimeter defense systems-based demodulation system; (b) a digital lock-in amplifier and field programmable gate array techniques for weak for numerous applications, which include intruder detection and perimeter defense systems for military

Li, Hongbin

212

Ground-based retrievals of optical depth, effective radius, and...  

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

m & 0.675 m R2 (hashed) R1 (gray) 500 m Backtrajectories over Niamey in 2006 Pre-monsoon Early monsoon Late monsoon Post-monsoon Distribution of Dust Composition Dependence...

213

Finite Element Simulation of Residual Stresses in Thermo-coupled Wire Drawing Process  

Science Conference Proceedings (OSTI)

The objective of this paper is to calculate residual stress in drawn wire taking into account induced temperature due to plastic dissipation energy. Finite element analysis (FEA) for the simulation of wire drawing is applied. The general purpose FEA ...

R. Iankov; A. Van Bael; P. Van Houtte

2000-06-01T23:59:59.000Z

214

The Effect of Prongs in the Measurement of Atmospheric Turbulence with Fine-Wire Resistance Transducers  

Science Conference Proceedings (OSTI)

The response of the fine-wire resistance temperature transducer was analyzed including the effects of (i) conducive heat transfer between wire and the supporting prong and (ii) a thermal boundary layer, which can form around the prongs especially ...

V. P. Singh; F. Eaton; R. Rubio

1992-04-01T23:59:59.000Z

215

THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT...  

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

THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER FACILITIES THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER FACILITIES Section...

216

STUDY OF THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED...  

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

STUDY OF THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER FACILITIE STUDY OF THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER...

217

First Test Results of the New LANSCE Wire Scanner  

SciTech Connect

The Beam Diagnostics and Instrumentation Team (BDIT) at Los Alamos National Laboratory's LANSCE facility is presently developing a new and improved wire scanner diagnostics system controlled by National Instrument's cRIO platform. This paper describes the current state of development of the control system along with the results gathered from the latest actuator motion performance and accelerator-beam data acquisition tests.

Sedillo, James Daniel [Los Alamos National Laboratory

2011-01-01T23:59:59.000Z

218

Leaching Studies for Metals Recovery from Waste Printed Wiring ...  

Science Conference Proceedings (OSTI)

Presentation Title, Leaching Studies for Metals Recovery from Waste Printed Wiring ... of the Chemical Changes and Surface Properties of Carbonated Waste Cement ... Flux for Basic Oxygen Steel Making Using Waste Oxides of Steel Plant ... Heat Treatment of Black Dross for the Production of a Value Added Material - A

219

Alternative Materials for Ground Electrodes  

Science Conference Proceedings (OSTI)

Power utility companies struggle with issues resulting from copper theftespecially on transmission line support structures accessible to the public and fitted with copper grounding conductors. It is increasingly important to identify alternative materials that can be used to provide a durable grounding system yet not be targeted for theft. In response, EPRI is investigating the use of alternative materials for electrode designsexamining life expectancy, corrosion, material compatibility and current handl...

2010-12-23T23:59:59.000Z

220

EAC Recommendations for DOE Action Regarding Non-Wires Solutions - October 17, 2012  

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

EAC Recommendations for DOE Action Regarding Non-Wires Solutions, approved at the October 15-16, 2012 EAC Meeting.

Note: This page contains sample records for the topic "optical ground wire" 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

Plasma channel optical-pumping device and method  

DOE Patents (OSTI)

A device and method are described for optically pumping a gaseous laser using blackbody radiation produced by a plasma channel which is formed from an electrical discharge between two electrodes spaced at opposite longitudinal ends of the laser. A preionization device which can comprise a laser or electron beam accelerator produces a preionization beam which is sufficient to cause an elctrical discharge between the electrodes to initiate the plasma channel along the preionization path. The optical pumping energy is supplied by a high voltage power supply rather than by the preionization beam. High output optical intensities are produced by the laser due to the high temperature black-body radiation produced by the plasma channel, in the same manner as an exploding wire type laser. However, unlike the exploding wire type laser, the disclosed invention can be operated in a repetitive manner by utilizing a repetitive pulsed preionization device.

Judd, O.P.

1981-07-17T23:59:59.000Z

222

SCIENTIFIC EFFICIENCY OF GROUND-BASED TELESCOPES  

SciTech Connect

I scanned the six major astronomical journals of 2008 for all 1589 papers that are based on new data obtained from ground-based optical/IR telescopes worldwide. Then I collected data on numbers of papers, citations to them in 3+ years, the most-cited papers, and annual operating costs. These data are assigned to four groups by telescope aperture. For instance, while the papers from telescopes with an aperture >7 m average 1.29 more citations than those with an aperture of 2 to <4 m, this represents a small return for a factor of four difference in operating costs. Among the 17 papers that have received {>=}100 citations in 3+ years, only half come from the large (>7 m) telescopes. I wonder why the large telescopes do so relatively poorly and suggest possible reasons. I also found that papers based on archival data, such as the Sloan Digital Sky Survey, produce 10.6% as many papers and 20.6% as many citations as those based on new data. Also, the 577.2 papers based on radio data produced 36.3% as many papers and 33.6% as many citations as the 1589 papers based on optical/IR telescopes.

Abt, Helmut A., E-mail: abt@noao.edu [Kitt Peak National Observatory, P.O. Box 26732, Tucson, AZ 85726-6732 (United States)

2012-10-01T23:59:59.000Z

223

Beam profile measurement with flying wires at the Fermilab Recycler Ring  

Science Conference Proceedings (OSTI)

Flying wires were installed at the Fermilab Recycler Ring for transverse beam profile measurement for both proton and antiproton beams. The following note describes the system configuration, calibration and resolution of the flying wire system, interactions between the wires and the beam, as well as analysis of the transverse beam profile in the presence of a stochastic cooling system.

Carcagno, R.; Pishchalnikov, Yu.; Krider, J.; Hu, M.; Lorman, E.; Marchionni, A.; Pordes, S.; Wilson, P.; Zagel, J.; /Fermilab

2005-05-01T23:59:59.000Z

224

Evaluation of the Effect of LOCA Testing on Polyimide Insulated Wire Subjected to Bending: Volume 2  

Science Conference Proceedings (OSTI)

Due in part to mishandling and improper installation, polyimide insulated wire has exhibited degradation in some military aircraft and power plant applications. This report presents the results of a Rochester Gas & Electric (RG&E) test program to determine the effects of bending on aged polyimide lead wire and subsequent performance of this wire during a nuclear plant design basis accident.

1998-05-19T23:59:59.000Z

225

Colorado Ground Water Commission | Open Energy Information  

Open Energy Info (EERE)

Water Commission Jump to: navigation, search Name Colorado Ground Water Commission Place Colorado Website http:water.state.co.usgroun References Colorado Ground Water Commission...

226

Optical keyboard  

DOE Patents (OSTI)

An optical keyboard includes an optical panel having optical waveguides stacked together. First ends of the waveguides define an inlet face, and opposite ends thereof define a screen. A projector transmits a light beam outbound through the waveguides for display on the screen as a keyboard image. A light sensor is optically aligned with the inlet face for sensing an inbound light beam channeled through the waveguides from the screen upon covering one key of the keyboard image.

Veligdan, James T. (Manorville, NY); Feichtner, John D. (Fiddletown, CA); Phillips, Thomas E. (San Diego, CA)

2001-01-01T23:59:59.000Z

227

Transient analysis of grounding systems  

SciTech Connect

This paper addresses the problem of computing the ground potential rise of grounding systems during transients. Finite element analysis is employed to model the constituent parts of a grounding system. Short lengths of earth embedded electrodes are characterized as transmission lines with distributed inductance, capacitance and leakage resistance to earth. Leakage resistance to earth is accurately computed with the method of moments. The other parameters of the finite element, namely inductance and capacitance, are computed from the resistance utilizing Maxwell's equations. This modeling enables the computation of the transient response of substation grounding systems to fast or slow waves striking the substation. The result is obtained in terms of a convolution of the step response of the system and the striking wave. In this way the impedance of substation systems to 60 cycles is accurately computed. Results demonstrate the dependence of the 60 cycle impedance on system parameters. The methodology allows to interface this model of a substation ground mat with the Electromagnetic Transient Analysis Program thus, allowing explicit representation of earth effects in electromagmatic transients computations.

Meliopoulos, A.P.; Moharam, M.G.

1983-02-01T23:59:59.000Z

228

Western Area Power Administration, Desert Southwest Region  

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

5 Western Area Power Administration, Desert Southwest Region Liberty-Parker 2 230-kV Transmission Line Optical Power Ground Wire Repairs - Continuation Sheet Project Description...

229

Program on Technology Innovation: Five-Wire Feasibility on Con Edison's Distribution Systems  

Science Conference Proceedings (OSTI)

The feasibility of a five-wire distribution system has gained interest in recent years. The five-wire distribution system features an isolated neutral that carries unbalanced load current. The main advantages of the five-wire distribution system include lower stray voltage and magnetic fields and easier detection of high-impedance faults. Under normal conditions, the five-wire design operates very similar to the four-wire design with one major exception all the return current is confined to the neutral t...

2006-09-05T23:59:59.000Z

230

THE WIRED SURVEY. II. INFRARED EXCESSES IN THE SDSS DR7 WHITE DWARF CATALOG  

SciTech Connect

With the launch of the Wide-field Infrared Survey Explorer (WISE), a new era of detecting planetary debris and brown dwarfs (BDs) around white dwarfs (WDs) has begun with the WISE InfraRed Excesses around Degenerates (WIRED) Survey. The WIRED Survey is sensitive to substellar objects and dusty debris around WDs out to distances exceeding 100 pc, well beyond the completeness level of local WDs. In this paper, we present a cross-correlation of the preliminary Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) WD catalog between the WISE, Two-Micron All Sky Survey (2MASS), UKIRT Infrared Deep Sky Survey (UKIDSS), and SDSS DR7 photometric catalogs. From {approx}18,000 input targets, there are WISE detections comprising 344 'naked' WDs (detection of the WD photosphere only), 1020 candidate WD+M dwarf binaries, 42 candidate WD+BD systems, 52 candidate WD+dust disk systems, and 69 targets with indeterminate infrared excess. We classified all of the detected targets through spectral energy distribution model fitting of the merged optical, near-IR, and WISE photometry. Some of these detections could be the result of contaminating sources within the large ( Almost-Equal-To 6'') WISE point-spread function; we make a preliminary estimate for the rates of contamination for our WD+BD and WD+disk candidates and provide notes for each target of interest. Each candidate presented here should be confirmed with higher angular resolution infrared imaging or infrared spectroscopy. We also present an overview of the observational characteristics of the detected WDs in the WISE photometric bands, including the relative frequencies of candidate WD+M, WD+BD, and WD+disk systems.

Debes, John H.; Leisawitz, David T. [Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Hoard, D. W. [Spitzer Science Center, California Institute of Technology, Pasadena, CA 91125 (United States); Wachter, Stefanie [Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125 (United States); Cohen, Martin [Monterey Institute for Research in Astronomy, Marina, CA 93933 (United States)

2011-12-01T23:59:59.000Z

231

Ground Magnetics | Open Energy Information  

Open Energy Info (EERE)

Ground Magnetics Ground Magnetics Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Ground Magnetics Details Activities (15) Areas (12) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Magnetic Techniques Parent Exploration Technique: Magnetic Techniques Information Provided by Technique Lithology: Presence of magnetic minerals such as magnetite. Stratigraphic/Structural: Mapping of basement structures, horst blocks, fault systems, fracture zones, dykes and intrusions. Hydrological: The circulation of hydrothermal fluid may impact the magnetic susceptibility of rocks. Thermal: Rocks lose their magnetic properties at the Curie temperature (580° C for magnetite) [1] and, upon cooling, remagnetize in the present magnetic field orientation. The Curie point depth in the subsurface may be determined in a magnetic survey to provide information about hydrothermal activity in a region.

232

Ground Truth: A Positive Cloud-to-Ground Lightning Flash  

Science Conference Proceedings (OSTI)

We describe the circumstances and effects of a cloud-to-ground lightning flash that lowered positive charge and struck a residential home near Albany, New York. The characteristics of the flash were detected and recorded by a wide-band magnetic ...

Vincent P. Idone; Richard E. Orville; Ronald W. Henderson

1984-07-01T23:59:59.000Z

233

Estimation of Cirrus Optical Thickness from Sun Photometer Measurements  

Science Conference Proceedings (OSTI)

A method is proposed to estimate the optical thickness of cirrus clouds from ground-based sun photometry. Transfer calculations of solar radiation in ice clouds were made by the Monte Carlo method. A scattering phase function presented by Takano ...

Masataka Shiobara; Shoji Asano

1994-06-01T23:59:59.000Z

234

Ground states in complex bodies  

E-Print Network (OSTI)

A unified framework for analyzing the existence of ground states in wide classes of elastic complex bodies is presented here. The approach makes use of classical semicontinuity results, Sobolev mappinngs and Cartesian currents. Weak diffeomorphisms are used to represent macroscopic deformations. Sobolev maps and Cartesian currents describe the inner substructure of the material elements. Balance equations for irregular minimizers are derived. A contribution to the debate about the role of the balance of configurational actions follows. After describing a list of possible applications of the general results collected here, a concrete discussion of the existence of ground states in thermodynamically stable quasicrystals is presented at the end.

Paolo Maria Mariano; Giuseppe Modica

2008-02-11T23:59:59.000Z

235

LINE-ABOVE-GROUND ATTENUATOR  

DOE Patents (OSTI)

The line-above-ground attenuator provides a continuously variable microwave attenuator for a coaxial line that is capable of high attenuation and low insertion loss. The device consists of a short section of the line-above- ground plane type transmission lime, a pair of identical rectangular slabs of lossy material like polytron, whose longitudinal axes are parallel to and indentically spaced away from either side of the line, and a geared mechanism to adjust amd maintain this spaced relationship. This device permits optimum fineness and accuracy of attenuator control which heretofore has been difficult to achieve.

Wilds, R.B.; Ames, J.R.

1957-09-24T23:59:59.000Z

236

Wire Making Techniques - HTS Coated Conductors - Fact Sheet  

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

Rolling Assisted Biaxially Textured Substrates (RABiTS Rolling Assisted Biaxially Textured Substrates (RABiTS TM ) coated conductors, characterized by their low cost and simple architecture, promise to meet industry price and performance targets. Introduction Since the discovery of high-temperature superconductors (HTS), notably YBa 2 Cu 3 O 7 (YBCO), researchers at the U.S. Department of Energy's (DOE) national laboratories have searched for ways to manufacture affordable flexible wires with high current density. One of the chief obstacles to the manufacture of commercial lengths of YBCO wire has been the phenomenon of weak links, which exist where current crosses a non-superconducting region such as a grain boundary. By aligning grains carefully, low angle boundaries between superconducting grains are assured, which

237

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers  

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

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers Print Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers Print Low-dimensional materials have gained much attention not only because of the nonstop march toward miniaturization in the electronics industry but also for the exotic properties that are inherent in their small size. One approach for creating low-dimensional structures is to exploit the nanoscale or atomic-scale features that exist naturally in the three-dimensional (bulk) form of materials. By this means, a group from the University of Washington has demonstrated a new way of creating one-dimensional nanoscale structures (nanowires) in the compound gallium selenide. In short, ordered lines of structural vacancies in the material stimulate the growth of "one-dimensional" structures less than 1 nanometer in width.

238

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers  

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

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers Print Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers Print Low-dimensional materials have gained much attention not only because of the nonstop march toward miniaturization in the electronics industry but also for the exotic properties that are inherent in their small size. One approach for creating low-dimensional structures is to exploit the nanoscale or atomic-scale features that exist naturally in the three-dimensional (bulk) form of materials. By this means, a group from the University of Washington has demonstrated a new way of creating one-dimensional nanoscale structures (nanowires) in the compound gallium selenide. In short, ordered lines of structural vacancies in the material stimulate the growth of "one-dimensional" structures less than 1 nanometer in width.

239

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers  

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

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers Print Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers Print Low-dimensional materials have gained much attention not only because of the nonstop march toward miniaturization in the electronics industry but also for the exotic properties that are inherent in their small size. One approach for creating low-dimensional structures is to exploit the nanoscale or atomic-scale features that exist naturally in the three-dimensional (bulk) form of materials. By this means, a group from the University of Washington has demonstrated a new way of creating one-dimensional nanoscale structures (nanowires) in the compound gallium selenide. In short, ordered lines of structural vacancies in the material stimulate the growth of "one-dimensional" structures less than 1 nanometer in width.

240

Wire Scanner Beam Profile Measurements: LANSCE Facility Beam Development  

SciTech Connect

The Los Alamos Neutron Science Center (LANSCE) is replacing Wire Scanner (WS) beam profile measurement systems. Three beam development tests have taken place to test the new wire scanners under beam conditions. These beam development tests have integrated the WS actuator, cable plant, electronics processors and associated software and have used H{sup -} beams of different beam energy and current conditions. In addition, the WS measurement-system beam tests verified actuator control systems for minimum profile bin repeatability and speed, checked for actuator backlash and positional stability, tested the replacement of simple broadband potentiometers with narrow band resolvers, and tested resolver use with National Instruments Compact Reconfigurable Input and Output (cRIO) Virtual Instrumentation. These beam tests also have verified how trans-impedance amplifiers react with various types of beam line background noise and how noise currents were not generated. This paper will describe these beam development tests and show some resulting data.

Gilpatrick, John D. [Los Alamos National Laboratory; Batygin, Yuri K. [Los Alamos National Laboratory; Gonzales, Fermin [Los Alamos National Laboratory; Gruchalla, Michael E. [Los Alamos National Laboratory; Kutac, Vincent G. [Los Alamos National Laboratory; Martinez, Derwin [Los Alamos National Laboratory; Sedillo, James Daniel [Los Alamos National Laboratory; Pillai, Chandra [Los Alamos National Laboratory; Rodriguez Esparza, Sergio [Los Alamos National Laboratory; Smith, Brian G. [Los Alamos National Laboratory

2012-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "optical ground wire" 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

Dissipation in a Quantum Wire: Fact and Fantasy  

Science Conference Proceedings (OSTI)

Where, and how, does energy dissipation of electrical energy take place in a ballistic wire? Fully two decades after the advent of the transmissive phenomenology of electrical conductance, this deceptively simple query remains unanswered. We revisit the quantum kinetic basis of dissipation and show its power to give a definitive answer to our query. Dissipation leaves a clear, quantitative trace in the non-equilibrium current noise of a quantum point contact; this signature has already been observed in the laboratory. We then highlight the current state of accepted understandings in the light of well-known yet seemingly contradictory measurements. The physics of mesoscopic transport rests not in coherent carrier transmission through a perfect and dissipationless metallic channel, but explicitly in their dissipative inelastic scattering at the wire's interfaces and adjacent macroscopic leads.

Das, Mukunda P. [Department of Theoretical Physics, IAS, Australian National University, Canberra, ACT 0200 (Australia); Green, Frederick [School of Physics, University of New South Wales, Sydney, NSW 2052 (Australia)

2008-10-23T23:59:59.000Z

242

Wrapping process for fabrication of A-15 superconducting composite wires  

DOE Patents (OSTI)

A method for fabricating superconducting wires wherein a billet of copper containing filaments of niobium or vanadium is rolled to form a strip which is wrapped about a tin-alloy core to form a composite. The alloy is a tin-copper alloy for niobium filaments and a gallium-copper alloy for vanadium filaments. The composite is then drawn down to a desired wire size and heat treated. During the heat treatment process, the tin in the bronze reacts with the niobium to form the superconductor niobium tin. In the case where vanadium is used, the gallium in the gallium bronze reacts with the vanadium to form the superconductor vanadium gallium. This new process eliminates the costly annealing steps, external tin plating and drilling of bronze ingots required in a number of prior art processes.

Suenaga, M.; Klamut, C.J.; Luhman, T.S.

1980-08-15T23:59:59.000Z

243

Electro-optic component mounting device  

DOE Patents (OSTI)

A technique is provided for integrally mounting a device such as an electro-optic device in a transmission line to avoid series resonant effects. A center conductor of the transmission line has an aperture formed therein for receiving the device. The aperture splits the center conductor into two parallel sections on opposite sides of the device. For a waveguide application, the center conductor is surrounded by a conductive ground surface which is spaced apart from the center conductor with a dielectric material. One set of electrodes formed on the surface of the electro-optic device is directly connected to the center conductor and an electrode formed on the surface of the electro-optic device is directly connected to the conductive ground surface. The electrodes formed on the surface of the electro-optic device are formed on curved sections of the surface of the device to mate with correspondingly shaped electrodes on the conductor and ground surface to provide a uniform electric field across the electro-optic device. The center conductor includes a passage formed therein for passage of optical signals to an electro-optic device. 10 figs.

Gruchalla, M.E.

1994-09-13T23:59:59.000Z

244

Near net shape processing of continuous lengths of superconducting wire  

DOE Patents (OSTI)

A system and method for mechanically forming a ceramic superconductor product. A system for making the ceramic superconductor includes a metallic channel portion having a cross section for receiving a ceramic superconductor powder, a roll to mechanically reduce the channel cross section and included superconductor powder and a cap portion welded to the channel portion using a localized high energy source. The assembled bar is then mechanically reduced to form a tape or wire end product.

Danyluk, Steven (Atlanta, GA); McNallan, Michael (Oak Park, IL); Troendly, Robert (St. Charles, IL); Poeppel, Roger (Glen Ellyn, IL); Goretta, Kenneth (Downer Grove, IL); Lanagan, Michael (Woodridge, IL)

1997-01-01T23:59:59.000Z

245

DARPA Learning Applied to Ground Robots (LAGR)  

Science Conference Proceedings (OSTI)

DARPA Learning Applied to Ground Robots (LAGR) Project (Concluded). Summary: The National Institute of Standards ...

2012-01-04T23:59:59.000Z

246

Homogenous BSCCO-2212 Round Wires for Very High Field Magnets  

Science Conference Proceedings (OSTI)

The performance demands on modern particle accelerators generate a relentless push towards higher field magnets. In turn, advanced high field magnet development places increased demands on superconducting materials. Nb3Sn conductors have been used to achieve 16 T in a prototype dipole magnet and are thought to have the capability for {approx}18 T for accelerator magnets (primarily dipoles but also higher order multipole magnets). However there have been suggestions and proposals for such magnets higher than 20 T. The High Energy Physics Community (HEP) has identified important new physics opportunities that are enabled by extremely high field magnets: 20 to 50 T solenoids for muon cooling in a muon collider (impact: understanding of neutrinos and dark matter); and 20+ T dipoles and quadrupoles for high energy hadron colliders (impact: discovery reach far beyond present). This proposal addresses the latest SBIR solicitation that calls for grant applications that seek to develop new or improved superconducting wire technologies for magnets that operate at a minimum of 12 Tesla (T) field, with increases up to 15 to 20 T sought in the near future (three to five years). The long-term development of accelerator magnets with fields greater than 20 T will require superconducting wires having significantly better high-field properties than those possessed by current Nb{sub 3}Sn or other A15 based wires. Given the existing materials science base for Bi-2212 wire processing, we believe that Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub y} (Bi-2212) round wires can be produced in km-long piece lengths with properties suitable to meet both the near term and long term needs of the HEP community. The key advance will be the translation of this materials science base into a robust, high-yield wire technology. While the processing and application of A15 materials have advanced to a much higher level than those of the copper oxide-based, high T{sub c} (HTS) counterparts, the HTS materials have the very significant advantage of an extremely high H{sub c2}. For this reason, Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub y} (Bi-2212, or 2212) in the form of a multifilamentary Ag alloy matrix composite is beginning to attract the interest of the magnet community for future extremely high-field magnets or magnet-insert coils for 4.2K operation. Fig. 1 shows an example of excellent JE (engineering current density) in Bi-2212 round wire at fields up to 45 T, demonstrating the potential for high field applications of this material. For comparison, the Nb{sub 3}Sn wires used in magnets in the 16-18 T range typically perform with J{sub E} in the range 200-500 A/mm{sup 2}; the Bi-2212 wire retains this level of performance to fields at least as high as 45 T, and probably significantly higher. Bi-2212 conductors have in fact been used to generate a 25 T field in a superconducting insert magnet. These two factors- the very high field critical current performance of Bi-2212, and the already demonstrated capability of this material for high field magnets up to 25 T, strongly suggest this material as a leading contender for the next generation high field superconducting (HFS) wire. This potential was recognized by the US Academy of Science's Committee on Opportunities in High Magnetic Field Science. Their report of the same name specifically calls out the high field potential for this material, and suggests that 30 T magnets appear feasible based on the performance of 2212. There are several requirements for HFS conductors. The most obvious is J{sub E} (B, T), the engineering current density at the field and temperature of operation. As shown in Fig. 1, Bi-2212 excels in this regard. Stability requirements for magnets dictate that the effective filament diameter should be less than 30 micrometers, something that Bi-2212 multifilamentary wire can uniquely satisfy among the HFS superconducting wire technologies. Additional requirements include mechanical properties that prevent stress limitation of J{sub E} at the operating conditions, resistive transition index (n-value) suffic

Dr. Scott Campbell Dr. Terry Holesinger Dr. Ybing Huang

2012-06-30T23:59:59.000Z

247

Practical method for evaluating ground fault current distribution in station supplied by an unhomogeneous line  

SciTech Connect

The paper presents an analytical procedure which enables a quick and, at the design stage, correct evaluation of the ground fault current distribution, for a fault in a substation supplied by a line composed of two or more uniform and different sections. The advantages of the method are based on the simplicity and accuracy of the formulae for solving uniform lumped parameter ladder circuits of any size and under any terminal conditions. The formulae are obtained by applying the general equations of the line represented by discrete parameters on a specific electrical circuit formed by a transmission line ground wire during ground faults. The paper also derives simple and exact expressions for solving ladder circuits formed by the discretization of underground conductors which are in continuous contact with earth (e.g., the sheaths of a cable, an interconnecting copper buried in the soil, a pipeline, etc.). The correct prediction of the expected ground fault current parts in soil and neutral conductors is of great importance in designing safe and economical substation grounding installations.

Popovic, L.M. [JP Elektroprivreda Srbije, Belgrade (Yugoslavia)] [JP Elektroprivreda Srbije, Belgrade (Yugoslavia)

1997-04-01T23:59:59.000Z

248

OPTICS 5  

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

OPTICS (Version 5.1.02) OPTICS (Version 5.1.02) Release notes NOTE: See the Optics Knowledge Base for how to run this version of Optics on the Microsoft Vista and Microsoft Windows 7 operating systems March 5, 2003: Release Maintenance Pack 2 New ! January 7, 2003: Release Maintenance Pack 1 October 23, 2002: Release Optics 5.1.01 September 27, 2002: Release Optics 5.1.00 (only released on CDs at NFRC Annual Fall Meeting) Release notes Maintenance Pack 2 Bug fixes: New features: bullet Applied films that were created could not be saved or exported. This has been fixed. bullet Exporting glazing systems generated a message that the operation failed because the glazing system type is unknown. Glazing systems can now be exported to file (e.g. to view the spectral data), but the structure information will be lost.

249

Optical engineering  

SciTech Connect

The Optical Engineering thrust area at Lawrence Livermore National Laboratory (LLNL) was created in the summer of 1996 with the following main objectives: (1) to foster and stimulate leading edge optical engineering research and efforts key to carrying out LLNL's mission and enabling major new programs; (2) to bring together LLNL's broad spectrum of high level optical engineering expertise to support its programs. Optical engineering has become a pervasive and key discipline, with applications across an extremely wide range of technologies, spanning the initial conception through the engineering refinements to enhance revolutionary application. It overlaps other technologies and LLNL engineering thrust areas.

Saito, T T

1998-01-01T23:59:59.000Z

250

Low-Cost Superconducting Wire for Wind Generators: High Performance, Low Cost Superconducting Wires and Coils for High Power Wind Generators  

SciTech Connect

REACT Project: The University of Houston will develop a low-cost, high-current superconducting wire that could be used in high-power wind generators. Superconducting wire currently transports 600 times more electric current than a similarly sized copper wire, but is significantly more expensive. The University of Houstons innovation is based on engineering nanoscale defects in the superconducting film. This could quadruple the current relative to todays superconducting wires, supporting the same amount of current using 25% of the material. This would make wind generators lighter, more powerful and more efficient. The design could result in a several-fold reduction in wire costs and enable their commercial viability of high-power wind generators for use in offshore applications.

None

2012-01-01T23:59:59.000Z

251

Ground Magnetics (Nannini, 1986) | Open Energy Information  

Open Energy Info (EERE)

Ground Magnetics (Nannini, 1986) Ground Magnetics (Nannini, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Magnetics (Nannini, 1986) Exploration Activity Details Location Unspecified Exploration Technique Ground Magnetics Activity Date Usefulness not indicated DOE-funding Unknown Notes Detection and quantitative assessment of such intrusive events can be facilitated by magnetic surveys (ground or aerial magnetic field measurements). These surveys are based on the magnetic susceptibility contrast between magmatic rocks at depth and the sedimentary formations above. References Raffaello Nannini (1986) Some Aspects Of Exploration In Non-Volcanic Areas Retrieved from "http://en.openei.org/w/index.php?title=Ground_Magnetics_(Nannini,_1986)&oldid=388291

252

A cathodically protected electrical substation ground grid  

SciTech Connect

This paper presents a discussion on the design of a cathodically protected electrical substation grounding system in which a steel ground grid and steel ground rods were used in place of the commonly used copper ground grid and copperweld ground rods. Several electrical constraints are presented which discuss common electrical utility requirements, safety considerations and economic factors. The grounding system materials which were chosen are discussed along with the means of cathodic protection. Finally, the design, construction and testing considerations are presented as an aid to others who wish to design a similar system.

Nelson, J.P.; Holm, W.K.

1983-09-01T23:59:59.000Z

253

Distribution Grounding of Underground Facilities  

Science Conference Proceedings (OSTI)

This report describes Phase I of a two-phase project to assess industry practices and standards for grounding and bonding of medium-voltage underground residential distribution (URD) and underground commercial distribution (UCD) circuits and worker safety in worksites with these systems.The report includes an overview of the issues and concerns associated with underground distribution systems safety and, in particular, worker safety in worksites. It identifies the industry and utility ...

2013-12-20T23:59:59.000Z

254

Parallel-wire grid assembly with method and apparatus for construction thereof  

DOE Patents (OSTI)

Disclosed is a parallel wire grid and an apparatus and method for making the same. The grid consists of a generally coplanar array of parallel spaced-apart wires secured between metallic frame members by an electrically conductive epoxy. The method consists of continuously winding a wire about a novel winding apparatus comprising a plurality of spaced-apart generally parallel spindles. Each spindle is threaded with a number of predeterminedly spaced-apart grooves which receive and accurately position the wire at predetermined positions along the spindle. Overlying frame members coated with electrically conductive epoxy are then placed on either side of the wire array and are drawn together. After the epoxy hardens, portions of the wire array lying outside the frame members are trimmed away.

Lewandowski, E.F.; Vrabec, J.

1981-10-26T23:59:59.000Z

255

Parallel-wire grid assembly with method and apparatus for construction thereof  

DOE Patents (OSTI)

Disclosed is a parallel wire grid and an apparatus and method for making the same. The grid consists of a generally coplanar array of parallel spaced-apart wires secured between metallic frame members by an electrically conductive epoxy. The method consists of continuously winding a wire about a novel winding apparatus comprising a plurality of spaced-apart generally parallel spindles. Each spindle is threaded with a number of predeterminedly spaced-apart grooves which receive and accurately position the wire at predetermined positions along the spindle. Overlying frame members coated with electrically conductive epoxy are then placed on either side of the wire array and are drawn together. After the epoxy hardens, portions of the wire array lying outside the frame members are trimmed away.

Lewandowski, Edward F. (Westmont, IL); Vrabec, John (South Holland, IL)

1984-01-01T23:59:59.000Z

256

Radial electric field 3D modeling for wire arrays driving dynamic hohlraums on Z.  

SciTech Connect

The anode-cathode structure of the Z-machine wire array results in a higher negative radial electric field (Er) on the wires near the cathode relative to the anode. The magnitude of this field has been shown to anti-correlate with the axial radiation top/bottom symmetry in the DH (Dynamic Hohlraum). Using 3D modeling, the structure of this field is revealed for different wire-array configurations and for progressive mechanical alterations, providing insight for minimizing the negative Er on the wire array in the anode-to-cathode region of the DH. Also, the 3D model is compared to Sasorov's approximation, which describes Er at the surface of the wire in terms of wire-array parameters.

Mock, Raymond Cecil

2007-06-01T23:59:59.000Z

257

Mound bridge-wire welding, testing and corrosion seminar, Miamisburg, OH, May 7-8, 1968  

SciTech Connect

Brief summaries are presented on the following presentations: welding for low voltage operation, welding techniques at Mound, welding/joining at Sandia, Ultrasonic`s plastic assemblies of detonator components, laser welding bridge-wires, laser safety in the Biorad industrial environment, nondestructive testing at Mound, thermal cycle data and evaluation, thermal cycle nondestructive testing, corrosion of detonator electrode and bridge-wire, and corrosion studies and fabrication of bridge-wire at Sigmund Cohn.

Richards, M.A.

1968-08-07T23:59:59.000Z

258

Investigating the Use of Ultrasonic Guided Waves for Aging Wire Insulation Assessment  

E-Print Network (OSTI)

Aging wiring has become a critical issue to DoD, NASA, FAA, and Industry. The problem is that insulation on environmentally aged wire becomes brittle and cracks. This exposes the underlying conductive wire to the potential for short circuits and fire. The difficulty is that techniques to monitor aging wire problems focus on applying electrical sensing techniques that are not very sensitive to the wire insulation. Thus, the development of methods to quantify and monitor aging wire insulation is highly warranted. Measurement of wire insulation stiffness by ultrasonic guided waves is being examined. Initial laboratory tests were performed on a simple model consisting of a solid cylinder and then a solid cylinder with a polymer coating. Experimental measurements showed that the lowest order axisymmetric mode may be sensitive to stiffness changes in the wire insulation. To test this theory, mil-spec wire samples MIL-W-81381, MIL-W-22759/34, and MIL-W-22759/87 (typically found in aircraft) were heat-damaged in an oven, in a range of heating conditions. The samples were 12, 16, and 20 gauge and the heat-damage introduced material changes in the wire-insulation that made the originally flexible insulation brittle and darker in color. Axisymmetric mode phasevelocity increased for the samples that were exposed to heat for longer duration. For example, the phase velocity in the 20-gauge MIL-W-22759/34 wire changed from a baseline value of 2790m/s to 3280m/s and 3530m/s for one-hour exposures to 349 C and 399 C, respectively. Although the heat-damage conditions are not the same as environmental aging, we believe that with further development and refinements, the ultrasonic guided waves can be used to inspect wire-insulation for detrimental environmental aging conditions.

Robert F. Anastasi; Eric I. Madaras

2002-01-01T23:59:59.000Z

259

SpaceWire model development technology for satellite architecture.  

DOE Green Energy (OSTI)

Packet switched data communications networks that use distributed processing architectures have the potential to simplify the design and development of new, increasingly more sophisticated satellite payloads. In addition, the use of reconfigurable logic may reduce the amount of redundant hardware required in space-based applications without sacrificing reliability. These concepts were studied using software modeling and simulation, and the results are presented in this report. Models of the commercially available, packet switched data interconnect SpaceWire protocol were developed and used to create network simulations of data networks containing reconfigurable logic with traffic flows for timing system distribution.

Eldridge, John M.; Leemaster, Jacob Edward; Van Leeuwen, Brian P.

2011-09-01T23:59:59.000Z

260

Enhancing Performance of /MOD-YBCO/RABiTSTM-based 2G Wire  

Science Conference Proceedings (OSTI)

AMSC's approach to enhance the wire performance is twofold: 1) Increasing the self-field critical current; 2) Enhancing the flux pinning performance. AMSC's...

Note: This page contains sample records for the topic "optical ground wire" 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

Wire-shaped semiconductor light-emitting diodes for general-purpose lighting  

SciTech Connect

The object of this work is to develop and optimize a new type of light-emitting diode (LED) with a wire-shaped, cylindrical geometry.

Mauk, Michael G.

2002-10-28T23:59:59.000Z

262

Corrosion Products of Iron Wire Arterial Implants from In Vivo and In ...  

Science Conference Proceedings (OSTI)

In the present study, iron wire was implanted into either the abdominal rat aortic wall or ... Fabrication of a Cellulosic Nanocomposite Scaffold with Improved...

263

Synthesis of Superconducting MgB2 Wire, Tapes and Films - Energy ...  

Electricity Transmission Synthesis of Superconducting MgB2 Wire, Tapes and Films Ames Laboratory. Contact AMES About This Technology Technology Marketing ...

264

Production of a Low-Cost DMD Wire Feedstock by Direct ...  

Science Conference Proceedings (OSTI)

Presentation Title, Production of a Low-Cost DMD Wire Feedstock by Direct Consolidation of Ti Sponge. Author(s), Kevin F. Dring, Martin Lefstad, Ola Jensrud.

265

Feature based cost and carbon emission modelling for wire and arc additive manufacturing.  

E-Print Network (OSTI)

??The wire and arc additive manufacturing (WAAM) is a CNC and welding deposition based additive manufacturing method. This novel manufacturing technique has potential cost and (more)

Guo, Jianing

2012-01-01T23:59:59.000Z

266

Polarization dependence of the absorption coefficient for an array of strained quantum wires  

Science Conference Proceedings (OSTI)

The polarization dependence of the absorption coefficient for compressively and tensilely strained quantum wires is investigated as a function of strain

Igor Vurgaftman; Jasprit Singh

1995-01-01T23:59:59.000Z

267

Indentation response of polymer films and aircraft wiring with polymer insulation.  

E-Print Network (OSTI)

??M.S. The airline regulatory communities are interested in methods that can access degradation in the polymer insulation of aging aircraft wiring. This study investigates the (more)

Nagendran, Kaushik Bindiganavile, 1979-

2005-01-01T23:59:59.000Z

268

Process uniformity for plasma etchback and desmear in printed wiring board manufacturing  

SciTech Connect

In the manufacture of printed wiring boards (PWB), plasma etchback and desmear processes facilitate the making of good mechanical and electrical bonds of copper inner layers to copper plating. Without sufficient plasma treatment, internal layer copper features receive inadequate polymer removal which results in circuit discontinuity during the plating process. Additionally, the plasma serves to roughen the polymer wall of drilled holes which improves copper adhesion. To ensure proper plasma treatment, careful adherence to strict production guidelines is essential. These guidelines include attention to several critical criteria in placement, pretreatment and treatment of the PWBs during the plasma process; process verification via post plasma testing; and careful process monitoring throughout. In this brief, some guidelines for process monitoring and control will be discussed. A description of a new plasma monitor utilizing optical emission spectroscopy (OES), developed cooperatively between Sandia National Laboratories, National Consortium for Manufacturing Sciences (NCMS) and Texas Instruments Inc., will be discussed along with possible benefits derived from in situ monitoring of plasma systems.

Ward, P.P.; Smith, M.L.; Stevenson, J.O. [Sandia National Labs., Albuquerque, NM (United States); Smedley, R. [Texas Instruments, Austin, TX (United States)

1996-08-01T23:59:59.000Z

269

Warm or Steaming Ground | Open Energy Information  

Open Energy Info (EERE)

Warm or Steaming Ground Warm or Steaming Ground Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Warm or Steaming Ground Dictionary.png Warm or Steaming Ground: An area where geothermal heat is conducted to the earth's surface, warming the ground and sometimes causing steam to form when water is present. Other definitions:Wikipedia Reegle Modern Geothermal Features Typical list of modern geothermal features Hot Springs Fumaroles Warm or Steaming Ground Mudpots, Mud Pools, or Mud Volcanoes Geysers Blind Geothermal System Steam rising from the ground at Eldvorp, a 10 km row of craters, in Southwestern Iceland. http://www.visiticeland.com/SearchResults/Attraction/eldvorp Warm or steaming ground is often an indicator of a geothermal system beneath the surface. In some cases a geothermal system may not show any

270

Ground Plane Identification Using LIDAR in Forested  

E-Print Network (OSTI)

To operate autonomously in forested environments, unmanned ground vehicles (UGVs) must be able to identify the load-bearing surface of the terrain (i.e. the ground). This paper presents a novel two-stage approach for ...

McDaniel, Matt W.

271

X-ray absorption spectroscopy of aluminum z-pinch plasma with tungsten backlighter planar wire array source  

Science Conference Proceedings (OSTI)

Absorption features from K-shell aluminum z-pinch plasmas have recently been studied on Zebra, the 1.7 MA pulse power generator at the Nevada Terawatt Facility. In particular, tungsten plasma has been used as a semi-backlighter source in the generation of aluminum K-shell absorption spectra by placing a single Al wire at or near the end of a single planar W array. All spectroscopic experimental results were recorded using a time-integrated, spatially resolved convex potassium hydrogen phthalate (KAP) crystal spectrometer. Other diagnostics used to study these plasmas included x-ray detectors, optical imaging, laser shadowgraphy, and time-gated and time-integrated x-ray pinhole imagers. Through comparisons with previous publications, Al K-shell absorption lines are shown to be from much lower electron temperature ({approx}10-40 eV) plasmas than emission spectra ({approx}350-500 eV).

Osborne, G. C.; Kantsyrev, V. L.; Safronova, A. S.; Esaulov, A. A.; Weller, M. E.; Shrestha, I.; Shlyaptseva, V. V. [Physics Department, University of Nevada, Reno, Reno, Nevada 89557 (United States); Ouart, N. D. [Naval Research Laboratory, Washington, D.C. 20375 (United States)

2012-10-15T23:59:59.000Z

272

Directional Reactive Power Ground Plane Transmission  

Directional Reactive Power Ground Plane Transmission Technology Summary ... The invention can transmit electrical power through the surface of the ...

273

US ARMY GROUND VEHICLE CREW COMPARTMENT ...  

Science Conference Proceedings (OSTI)

... test fixture was constructed from an excess ground vehicle hull ... instrumentation measured acid gas exposure levels: ion selective electrodes (grab ...

2011-10-04T23:59:59.000Z

274

Modeling reducibility on ground terms using constraints  

E-Print Network (OSTI)

Modeling reducibility on ground terms using constraints Isabelle GNAEDIGa , H´el`ene KIRCHNERb a on ground terms using (dis)equational constraints. We show in particular that innermost (ir)reducibility can on the ground term algebra that any rewriting chain starting from any term termi- nates, provided that terms

Paris-Sud XI, Université de

275

Ground-based multisite observations of two transits of HD 80606b  

E-Print Network (OSTI)

We present ground-based optical observations of the 2009 September and 2010 January transits of HD 80606b. Based on three partial light curves of the 2009 September event, we derive a midtransit time of Tc [HJD] = 2455099.196 ...

Shporer, A.

276

Conjugated "Molecular Wire" for Excitons  

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

Conjugated "Molecular Wire" for Excitons Conjugated "Molecular Wire" for Excitons Yuki Shibano, Hiroshi Imahori, Paiboon Sreearunothai, Andrew R. Cook and John R. Miller J. Phys. Chem. Lett. 1, 1492-1496 (2010). [Find paper at ACS Publications] Abstract: We have synthesized new conjugated, rigid rod oligomers of fluorene, Fn(C60)2, n = 4, 8, 12, and 16. These pure compounds have Fn chains up to 140 Å long. The C60 groups covalently attached at both ends serve as traps for excitons created in the Fn chains. Excitons created in the chains by photoexcitation reacted rapidly with the C60 groups with decays described well by the sum of two exponentials. Mean reaction times were 2.3, 5.5, and 10.4 ps for n = 8, 12, and 16. In F16(C60)2, the 10.4 ps reaction time was 40 times faster than that found in earlier reports on

277

Wire-chamber radiation detector with discharge control  

DOE Patents (OSTI)

A wire chamber; radiation detector has spaced apart parallel electrodes and grids defining an ignition region in which charged particles or other ionizing radiations initiate brief localized avalanche discharges and defining an adjacent memory region in which sustained glow discharges are initiated by the primary discharges. Conductors of the grids at each side of the memory section extend in orthogonal directions enabling readout of the X-Y coordinates of locations at which charged particles were detected by sequentially transmitting pulses to the conductors of one grid while detecting transmissions of the pulses to the orthogonal conductors of the other grid through glow discharges. One of the grids bounding the memory region is defined by an array of conductive elements each of which is connected to the associated readout conductor through a separate resistance. The wire chamber avoids ambiguities and imprecisions in the readout of coordinates when large numbers of simultaneous or; near simultaneous charged particles have been detected. Down time between detection periods and the generation of radio frequency noise are also reduced.

Perez-Mendez, V.; Mulera, T.A.

1982-03-29T23:59:59.000Z

278

Wire Scanner Beam Profile Measurements for the LANSCE Facility  

SciTech Connect

The Los Alamos Neutron Science Center (LANSCE) is replacing beam profile measurement systems, commonly known as Wire Scanners (WS). Using the principal of secondary electron emission, the WS measurement system moves a wire or fiber across an impinging particle beam, sampling a projected transverse-beam distribution. Because existing WS actuators and electronic components are either no longer manufactured or home-built with antiquated parts, a new WS beam profile measurement is being designed, fabricated, and tested. The goals for these new WS's include using off-the-shelf components while eliminating antiquated components, providing quick operation while allowing for easy maintainability, and tolerating external radioactivation. The WS measurement system consists of beam line actuators, a cable plant, an electronics processor chassis, and software located both in the electronics chassis (National Instruments LabVIEW) and in the Central Control Room (EPICS-based client software). This WS measurement system will measure Hand H{sup +} LANSCE-facility beams and will also measure less common beams. This paper describes these WS measurement systems.

Gilpatrick, John D. [Los Alamos National Laboratory; Gruchalla, Michael E. [Los Alamos National Laboratory; Martinez, Derwin [Los Alamos National Laboratory; Pillai, Chandra [Los Alamos National Laboratory; Rodriguez Esparza, Sergio [Los Alamos National Laboratory; Sedillo, James Daniel [Los Alamos National Laboratory; Smith, Brian G. [Los Alamos National Laboratory

2012-05-15T23:59:59.000Z

279

D0-EC RTD Wiring Layout (North Calorimeter)  

SciTech Connect

The temperature of the North End-Calorimeter of the D-Zero detector is to be monitored by several RTD temperature sensors. The location and other important information pertaining to each individual RTD is included in the following tables, which are grouped by bundle number. There are mne 60 pIll port connectors. Each connector corresponds to a bundle of twisted pairs. Twisted pairs, of one of eight colors along with either a black or white wire, run to 10-pin connectors which have a mate on the module or cryostat wall. In general, all 60 pins, or all 10 pins are not used. The color scheme of the wires was designed so that all the twisted pairs with white run West from the instrumentation port, and twisted pairs with black run East. This scheme proved to be very successful and efficient during the installation process. After being installed, every RTD connection was checked and their corresponding resistances were recorded by Jerry Blazey. All the RTD's tested successfully, except for 2. The 2 dead RTD's were: Channel 17 on bundle 4, which is located on the front of MH module 8L; and Channel 13 on bundle 5, which is located on the Bottom of the Middle Coarse Plate of the IH.

Primdahl, K.; /Fermilab

1991-06-04T23:59:59.000Z

280

D0-EC RTD Wiring Layout (South Calorimter)  

SciTech Connect

The temperature of the South End-Calorimeter of the D-Zero detector is to be monitored by several RTD temperature sensors. The location and other important information pertaining to each individual RTD is included in the following tables, which are grouped by bundle number. There are nine 60 pin port connectors. Each connector corresponds to a bundle of twisted pairs. Twisted pairs, of one of eight colors along with either a black or white wire, run to 10-pin connectors which have a mate on the module or cryostat wall. In general, all 60 pins, or all 10 pins are not used. The color scheme of the wires was deSigned so that all the twisted pairs with white run West from the instrumentation port, and twisted pairs with black run East. This scheme proved to be very successful and efficient during the installation process. After being installed, every RTD connection was checked and their corresponding resistances were recorded by Jerry Blazey. All the ATD's tested successfully, except for 4. The 4 dead RTD's were: Channel 12 on bundle 1, which is located on the back of OH module 7R; Channel 19 on bundle 4, which is located on the back of MH module 5L; Channel 9 on bundle 5, which is located on the IH fine 2-inch strap; and Channel 25 on bundle 7, which is located on the east strongback.

Leibfritz, J.R.; /Fermilab

1991-08-06T23:59:59.000Z

Note: This page contains sample records for the topic "optical ground wire" 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

NIST Optical Radiation Group  

Science Conference Proceedings (OSTI)

Optical Radiation Group. Welcome. The Optical Radiation Group maintains, improves, and disseminates the national scales ...

2013-07-29T23:59:59.000Z

282

Combined Satellite- and Surface-Based Estimation of the IntracloudCloud-to-Ground Lightning Ratio over the Continental United States  

Science Conference Proceedings (OSTI)

Four years of observations from the NASA Optical Transient Detector and Global Atmospherics National Lightning Detection Network are combined to determine the geographic distribution of the climatological intracloudcloud-to-ground (CG) lightning ...

Dennis J. Boccippio; Kenneth L. Cummins; Hugh J. Christian; Steven J. Goodman

2001-01-01T23:59:59.000Z

283

DESIGN OF WIRE-WRAPPED ROD BUNDLE MATCHED INDEX-OF-REFRACTION EXPERIMENTS  

SciTech Connect

Experiments will be conducted in the Idaho National Laboratory (INL) Matched Index-of-Refraction (MIR) Flow Facility [1] to characterize the three-dimensional velocity and turbulence fields in a wire-wrapped rod bundle typically employed in liquid-metal cooled fast reactors and to provide benchmark data for computer code validation. Sodium cooled fast reactors are under consideration for use in the U.S. Department of Energy (DOE) Global Nuclear Energy Partnership (GNEP) program. The experiment model will be constructed of quartz components and the working fluid will be mineral oil. Accurate temperature control (to within 0.05 oC) matches the index-of-refraction of mineral oil with that of quartz and renders the model transparent to the wavelength of laser light employed for optical measurements. The model will be a scaled 7-pin rod bundle enclosed in a hexagonal canister. Flow field measurements will be obtained with a LaVision 3-D particle image velocimeter (PIV) and complimented by near-wall velocity measurements obtained from a 2-D laser Doppler velocimeter (LDV). These measurements will be used as benchmark data for computational fluid dynamics (CFD) validation. The rod bundle model dimensions will be scaled up from the typical dimensions of a fast reactor fuel assembly to provide the maximum Reynolds number achievable in the MIR flow loop. A range of flows from laminar to fully-turbulent will be available with a maximum Reynolds number, based on bundle hydraulic diameter, of approximately 22,000. The fuel pins will be simulated by 85 mm diameter quartz tubes (closed on the inlet ends) and the wire-wrap will be simulated by 25 mm diameter quartz rods. The canister walls will be constructed from quartz plates. The model will be approximately 2.13 m in length. Bundle pressure losses will also be measured and the data recorded for code comparisons. The experiment design and preliminary CFD calculations, which will be used to provide qualitative hydrodynamic information, are presented in this paper.

Hugh McIlroy; Hongbin Zhang; Kurt Hamman

2008-05-01T23:59:59.000Z

284

Building Energy Software Tools Directory: Ground Loop Design  

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

Loop Design Ground Loop Design logo Ground Loop Design is a versatile ground source heat pump system design program that helps the trained geothermal HVAC designerengineer...

285

Individual differences in preferred steering effort for steer-by-wire systems  

Science Conference Proceedings (OSTI)

Steer-by-wire systems provide drivers with the opportunity to personalize steering settings in vehicles. Studies conducted in the past have indicated that preferences for steering effort, one of the factors which affect steering feel, vary based on individual ... Keywords: human machine interface, steer-by-wire, steering effort, steering feel, steering systems

Swethan Anand; Jacques Terken; Jeroen Hogema

2011-11-01T23:59:59.000Z

286

Parallel automated wire-routing with a number of competing processors  

Science Conference Proceedings (OSTI)

The purpose of the automated wire routing for VLSI and printed circuit board design is to connect a number of terminal pairs distributed throughout wiring plane with net paths which do not intersect each other. Although maze running and line search are ...

Yoshizo Takahashi; Shigetaka Sasaki

1990-06-01T23:59:59.000Z

287

Time and Frequency Response of a Resistance-Wire Aircraft Atmospheric Temperature Sensor  

Science Conference Proceedings (OSTI)

The heat transfer characteristics of an aircraft-mounted resistance-wire atmospheric temperature sensor are modeled to determine the time and frequency responses. The sensor element (Rosemount 102E4AL) consists of a 25-?m-diameter platinum wire ...

G. A. Payne; C. A. Friehe; D. K. Edwards

1994-04-01T23:59:59.000Z

288

Microstructure development in Nb3Sn(Ti) internal tin superconducting wire  

E-Print Network (OSTI)

in the inner and outer rings of the 26-bundle wire (left) and in the 85-bundle wire (right). The voids observed to identify the phases present and X-ray microtomography (XMT) to investigate the void volume and distribution tin [1], powder-in-tube (PIT) [2] and bronze processes [3]. In this study, two commercially produced

Elliott, James

289

Forcing neurocontrollers to exploit sensory symmetry through hard-wired modularity in the game of Cellz  

E-Print Network (OSTI)

Forcing neurocontrollers to exploit sensory symmetry through hard-wired modularity in the game the benefits of different types of modularity by hard-wiring these into evolvable systems. In this paper we to the phenomenon that the interconnection of unrelated parts of a neural network in itself can hamper evolution

Lucas, Simon M.

290

Research on Magnetic Signal Extracting and Filtering of Coal Mine Wire Rope Belt Conveyer Defects  

Science Conference Proceedings (OSTI)

Because of wire rope conveyer belt with high load operating and complex conditions of coal mine, it is prone to cause conveyer belt horizontal rupture. It will bring tremendous hazards for coal mine safe production. Defects of wire rope and joints displacement ...

Qinghua Mao; Hongwei Ma; Xuhui Zhang; Dawei Zhang

2011-01-01T23:59:59.000Z

291

Modeling of wire-on-tube heat exchangers using finite element method  

Science Conference Proceedings (OSTI)

Wire-on-tube heat exchangers are analysed under normal operating conditions (free convection) using finite element method. Galerkin's weighted residual method is used to minimise the errors. The effects of ambient temperatures and mass flow rates of ... Keywords: finite element method, free convection, phase change, wire on-tube heat exchangers

G. A. Quadir; G. M. Krishnan; K. N. Seetharamu

2002-03-01T23:59:59.000Z

292

Laboratory Calibration of a Vibrating Wire Device for Measuring Concentrations of Supercooled Liquid Water  

Science Conference Proceedings (OSTI)

Laboratory measurements of supercooled liquid water are made by a vibrating-wire sensor whose frequency of vibration varies according to the mass of ice collected on it. The vibrating-wire system is designed to be placed in the humidity duct of ...

Geoffrey E. Hill

1989-12-01T23:59:59.000Z

293

Low power interconnect design for fpgas with bidirectional wiring using nanocrystal floating gate devices (abstract only)  

Science Conference Proceedings (OSTI)

New architectures for the switch box and connection block are proposed for use in an energy efficient field programmable gate array (FPGA) with bidirectional wiring. Power-hungry SRAMs are replaced by non-volatile nanocrystal floating gate (NCFG) devices ... Keywords: bidirectional wiring, connection block, floating gate, fpga, high speed, low power, nanocrystal, switch box

Daniel Schinke; Wallace Shep Pitts; Neil Di Spigna; Paul Franzon

2011-02-01T23:59:59.000Z

294

Critical-Current Reduction in Thin Superconducting Wires Due to Current Crowding  

SciTech Connect

We demonstrate experimentally that the critical current in superconducting NbTiN wires is dependent on their geometrical shape, due to current-crowding effects. Geometric patterns such as 90{degrees} corners and sudden expansions of wire width are shown to result in the reduction of critical currents. The results are relevant for single-photon detectors as well as parametric amplifiers.

Hortensius, H.L.; Driessen, E.F.C.; Klapwijk, T.M.; Berggren, K.K.; Clem, John

2012-05-03T23:59:59.000Z

295

Categorical Exclusion Determination Form Proposed Action Title: (0473-1597) Smart Wire Grid, Inc. -  

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

97) Smart Wire Grid, Inc. - 97) Smart Wire Grid, Inc. - Distributed Power Flow Contro l Using Smart Wires for Energy Routing Program or Field Office: Advanced Research Projects Agency - Energy Location(s) (City/County/State): California, Missouri, North Carolina, Georgia, Wash ington, Pennsylvania, and Tennessee Proposed Action Description: Funding will support development of a Smart Wire System Controller and an energy router software to enable distributed agents to coordinate with the control center, improve power flow control, and take advantage of unused capacity within the existing transmission system. In addition, the power controller will enable grid operators to optimize transmission assets to fully integrate variable renewable energy sources. Proposed work consists of (1) designing, developing, testing, and optimizing the Smart Wire System Controller to meet utility specifications; (2)

296

Microsoft Word - Final Private Wires Study 1-12-09clean .doc  

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

Study of the Effect of Private Wire Laws on Development of Combined Heat and Power Facilities Study of the Effect of Private Wire Laws on Development of Combined Heat and Power Facilities STUDY OF THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER FACILITIES Pursuant to Section 1308 of The Energy Independence and Security Act of 2007 Prepared for: U.S. Department of Energy Navigant Consulting, Inc. Suite 500 1801 K Street, NW Washington, DC 20006 202.481.7534 www.navigantconsulting.com January 12, 2009 Study of the Effect of Private Wire Laws on Development of Combined Heat and Power Facilities Page i STATUTORY REQUIREMENT Energy Independence and Security Act of 2007 SEC. 1308. STUDY OF THE EFFECT OF PRIVATE WIRE LAWS ON THE DEVELOPMENT OF COMBINED HEAT AND POWER FACILITIES.

297

Microsoft Word - Final Private Wires Report 10-19-09.doc  

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

Study of the Effect of Private Wire Laws on Development of Combined Heat and Power Facilities Study of the Effect of Private Wire Laws on Development of Combined Heat and Power Facilities THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER FACILITIES Pursuant to Section 1308 of The Energy Independence and Security Act of 2007 January 12, 2009 Report of Study of the Effect of Private Wire Laws on Development of Combined Heat and Power Facilities Page 1 Section 1308 of the Energy Independence and Security Act of 2007 ("EISA 2007") directed the Secretary of Energy, in consultation with the States, to undertake a study of the laws affecting the siting of privately-owned distribution wires on or across public rights of way and to consider the impact of those laws on the development of combined heat and power ("CHP") facilities, as well as to determine

298

Wiring methods, components, and equipment for general use. - 1926.405  

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

Wiring methods, components, and equipment for general use. - 1926.405 Wiring methods, components, and equipment for general use. - 1926.405 www.OSHA.gov A-Z Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Regulations (Standards - 29 CFR) Wiring methods, components, and equipment for general use. - 1926.405 Regulations (Standards - 29 CFR) - Table of Contents * Part Number: 1926 * Part Title: Safety and Health Regulations for Construction * Subpart: K * Subpart Title: Electrical * Standard Number: 1926.405 * Title: Wiring methods, components, and equipment for general use. 1926.405(a) Wiring methods. The provisions of this paragraph do not apply to conductors which form an integral part of equipment such as motors, controllers, motor control centers and like equipment. 1926.405(a)(1) General requirements -

299

A Catalyst Wire-feed Arc Discharge for Synthesis of Carbon Nanotubes and  

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

A Catalyst Wire-feed Arc Discharge for Synthesis of Carbon Nanotubes and A Catalyst Wire-feed Arc Discharge for Synthesis of Carbon Nanotubes and Graphene Particles This invention pertains to a highly effective arc-based synthesis of single wall carbon nanotubes and graphene particles using catalysts in the form of wires made from ion group alloys instead of commonly used catalyst powders. The catalyst wire can be introduced into the discharge either from the anode or cathode regions or into the inter-electrode gap. The catalyst introduction can be done automatically and controlled using feedback based on the ablation of the graphite electrode. To maintain simplicity and attractiveness for industrial applications, it is desirable that the catalyst composition be contained in a single wire alloy. No.: M-808 Inventor(s): Yevgeny Raitses

300

Comprehensive analysis of radiative properties of brass and Al arranged in nested cylindrical wire arrays.  

SciTech Connect

Experimental results of nested cylindrical wire arrays (NCWA) consisting of brass (70% Cu and 30% Zn) wires on one array and Al (5056, 5% Mg) wires on the other array performed on the UNR Zebra generator at 1.0 MA current are compared and analyzed. Specifically, radiative properties of K-shell Al and Mg ions and L-shell Cu and Zn ions are compared as functions of the placements of the brass and Al wires on the inner and outer arrays. A full diagnostic set which included more than ten different beam-lines was implemented. Identical loads were fielded to allow the timing of time-gated pinhole and x-ray spectrometers to be shifted to get a more complete understanding of the evolution of plasma parameters over the x-ray pulse. The importance of the study of NCWAs with different wire materials is discussed.

Stafford, A. (University of Nevada, Reno, NV); Keim, S. F. (University of Nevada, Reno, NV); Osborne, Glenn C. (University of Nevada, Reno, NV); Esaulov, Andrey A. (University of Nevada, Reno, NV); Shrestha, I. (University of Nevada, Reno, NV); Kantsyrev, Victor Leonidovich (University of Nevada, Reno, NV); Shlyaptseva, V. (University of Nevada, Reno, NV); Coverdale, Christine Anne; Williamson, K. M. (University of Nevada, Reno, NV); Ouart, Nicholas D. (University of Nevada, Reno, NV); Safronova, Alla S. (University of Nevada, Reno, NV); Weller, M. E. (University of Nevada, Reno, NV)

2010-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "optical ground wire" 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

Effects of the roughness characteristics on the wire tool surface for the electrical discharge machining properties  

Science Conference Proceedings (OSTI)

Wire electrical discharge machining (WEDM) has been investigated to obtain the better discharge machining properties of the removal rate and the surface roughness in a few decades. Recently, it revealed that the rough tool electrodes can improve the WEDM properties for some sort of materials. In this study, the rough wire electrodes using a wet blasting method was developed and evaluated the machining performance for the insulated Si{sub 3}N{sub 4} in the WEDM processes. As the results, it could not recognize the advantage of roughness wire electrode under the high-energy condition, but it found that the electro-conductive layer thickness became thinner in comparison with those of normal wires. On the contrary, it could be obtained the better surface roughness in the low energy condition. It was supposed that the roughed wire surface generates the homogeneous dispersion discharges on the workpiece.

Fukuzawa, Yasushi; Yamashita, Masahide; Mamuro, Hiroaki; Yamashita, Ken [Nagaoka University of Technology, Department of Mechanical Engineering, 1603-1 Kamitomioka-machi, Nagaoka, Niigata, 940-2188 (Japan); Ogata, Masayoshi [Macoho Co., Ltd. 525 Kanawa, Isurugi-machi, Nagaoka, Niigata 940-2032 JAPAN (Japan)

2011-01-17T23:59:59.000Z

302

Method for producing strain tolerant multifilamentary oxide superconducting wire  

DOE Patents (OSTI)

A strain tolerant multifilamentary wire capable of carrying superconducting currents is provided comprising a plurality of discontinuous filaments formed from a high temperature superconducting material. The discontinuous filaments have a length at least several orders of magnitude greater than the filament diameter and are sufficiently strong while in an amorphous state to withstand compaction. A normal metal is interposed between and binds the discontinuous filaments to form a normal metal matrix capable of withstanding heat treatment for converting the filaments to a superconducting state. The geometry of the filaments within the normal metal matrix provides substantial filament-to-filament overlap, and the normal metal is sufficiently thin to allow supercurrent transfer between the overlapped discontinuous filaments but is also sufficiently thick to provide strain relief to the filaments.

Finnemore, Douglas K. (Ames, IA); Miller, Theodore A. (Tucson, AZ); Ostenson, Jerome E. (Ames, IA); Schwartzkopf, Louis A. (Mankato, MN); Sanders, Steven C. (Ames, IA)

1994-07-19T23:59:59.000Z

303

Magnetic Alignment of Pulsed Solenoids Using the Pulsed Wire Method  

SciTech Connect

A unique application of the pulsed-wire measurement method has been implemented for alignment of 2.5 T pulsed solenoid magnets. The magnetic axis measurement has been shown to have a resolution of better than 25 {micro}m. The accuracy of the technique allows for the identification of inherent field errors due to, for example, the winding layer transitions and the current leads. The alignment system is developed for the induction accelerator NDCX-II under construction at LBNL, an upgraded Neutralized Drift Compression experiment for research on warm dense matter and heavy ion fusion. Precise alignment is essential for NDCX-II, since the ion beam has a large energy spread associated with the rapid pulse compression such that misalignments lead to corkscrew deformation of the beam and reduced intensity at focus. The ability to align the magnetic axis of the pulsed solenoids to within 100 pm of the induction cell axis has been demonstrated.

Arbelaez, D.; Madur, A.; Lipton, T.M.; Waldron, W.L.; Kwan, J.W.

2011-04-01T23:59:59.000Z

304

Seebeck Measurements on Arrays of Embedded Bi Submicron Wires  

E-Print Network (OSTI)

The transport properties of nanoscaled objects can be very different from those of the corresponding bulk material due to the influence of finite-size and quantum-size effects in low-dimensional structures. In 1993, Hicks and Dresselhaus published theoretical investigations on transport properties of one-dimensional conductors, predicting a significantly enhanced thermoelectric efficiency [1]. Because of large effective masses and mean free path of the conduction electrons, Bi is an ideal material for studying the transport properties of nanowires. The electrical conductivity of Bi nanowires was already intensively investigated [2]. Here, a simple method for the measurement of another thermoelectric material property, the Seebeck coefficient S, of arrays of embedded submicron wires is presented. S is defined as proportionality factor between the potential

S. Mller; T. W. Cornelius; D. Huzel; O. Picht; M. Rauber; R. Neumann

2008-01-01T23:59:59.000Z

305

Ground Loops for Heat Pumps and Refrigeration  

E-Print Network (OSTI)

Ground loops are used for water source heat pumps. Refrigeration can be put on a ground loop. Water-cooled condensing units are more efficient than air-cooled, and they can be put indoors. Indoor location makes piping for desuperheater hot water easy. Since refrigeration equipment runs more than heat pumps, energy savings can be large for ground-coupled refrigeration. The paper presents a design procedure for ground loops for heat pumps, hot water, ice machines, and water-cooled refrigeration. It gives an overview of the commercial ground-coupled systems in Louisiana that have both refrigeration and heat pumps. Systems vary from small offices to a three-story office building with 187 tons. A chain of hamburger outlets uses total ground-coupling in all of its stores. A grocery store has ground-coupling for heat pumps and refrigeration. Desuperheaters provide 80 percent of the hot water for a coin laundry in the same building. A comparison of energy costs in a bank with a ground-coupled heat pump system to a similar bank with air-conditioning and gas for heat revealed a 31 percent reduction in utility costs for the ground-coupled building. Two buildings of the Mississippi Power and Light Co. have ground-coupled heat pumps in one, and high efficiency air source heat pumps in the other. Energy savings in nine months was 60,000 kWh (25 percent), and electric peak demand was reduced 42 kW (35 percent).

Braud, H. J.

1986-01-01T23:59:59.000Z

306

Optical switch  

DOE Patents (OSTI)

An optical switching device (10) is provided whereby light from a first glass fiber (16) or a second glass fiber (14) may be selectively transmitted into a third glass fiber (18). Each glass fiber is provided with a focusing and collimating lens system (26, 28, 30). In one mode of operation, light from the first glass fiber (16) is reflected by a planar mirror (36) into the third glass fiber (18). In another mode of operation, light from the second glass fiber (14) passes directly into the third glass fiber (18). The planar mirror (36) is attached to a rotatable table (32) which is rotated to provide the optical switching.

Reedy, Robert P. (Livermore, CA)

1987-01-01T23:59:59.000Z

307

Optical switch  

DOE Patents (OSTI)

An optical switching device is provided whereby light from a first glass fiber or a second glass fiber may be selectively transmitted into a third glass fiber. Each glass fiber is provided with a focusing and collimating lens system. In one mode of operation, light from the first glass fiber is reflected by a planar mirror into the third glass fiber. In another mode of operation, light from the second glass fiber passes directly into the third glass fiber. The planar mirror is attached to a rotatable table which is rotated to provide the optical switching. 3 figs.

Reedy, R.P.

1987-11-10T23:59:59.000Z

308

Condition Assessment of Substation Ground Grids  

Science Conference Proceedings (OSTI)

This report describes the first stage of research to develop a simple and inexpensive method and device to assess the integrity of substation grounding grids. The problem has been studied before but there is not, to our knowledge, a reliable and inexpensive method or device to make a reliable diagnosis. While the EPRI-developed Ground Grid Evaluator (commercially knows as the Smart Ground Multimeter or SGM) can be used to provide valuable information, the equipment is considered to be expensive and requi...

2008-03-26T23:59:59.000Z

309

Condition Assessment of Substation Ground Grids  

Science Conference Proceedings (OSTI)

This report describes the second stage of a research project to develop a simple and inexpensive method and device to assess the integrity of substation grounding grids. The problem has been studied before but a reliable and inexpensive method or device to make a reliable diagnosis of grid condition is still lacking. While the EPRI-developed Ground Grid Evaluator (commercially known as the Smart Ground Multimeter) can be used to provide valuable information, the equipment is expensive and requires extens...

2008-12-17T23:59:59.000Z

310

Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Ground Electromagnetic Techniques Ground Electromagnetic Techniques (Redirected from Ground Electromagnetic Methods) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Ground Electromagnetic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

311

Recent ground motion studies at Fermilab  

SciTech Connect

Understanding slow and fast ground motion is important for the successful operation and design for present and future colliders. Since 2000 there have been several studies of ground motion at Fermilab. Several different types of HLS (hydro static level sensors) have been used to study slow ground motion (less than 1 hertz) seismometers have been used for fast (greater than 1 hertz) motions. Data have been taken at the surface and at locations 100 meters below the surface. Data of recent slow ground motion measurements with HLSs, many years of alignment data and results of the ATL-analysis are presented and discussed.

Shiltsev, V.; Volk, J.; /Fermilab; Singatulin, S.; /Novosibirsk, IYF

2009-04-01T23:59:59.000Z

312

Pacific Northwest National Laboratory Grounds Maintenance  

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

Pacific Northwest National Laboratory (PNNL) operates an award-winning grounds maintenance program that comprises a comprehensive landscape and irrigation management program. The...

313

US ARMY GROUND VEHICLE HALON REPLACEMENT ...  

Science Conference Proceedings (OSTI)

... test fixture has been constructed from a derelict ground vehicle hull ... exposure levels: ion selective electrodes (grab hag sampling), sorbent tubes ...

2011-10-04T23:59:59.000Z

314

LANSCE-R WIRE-SCANNER ANALOG FRONT-END ELECTRONICS  

SciTech Connect

A new AFE is being developed for the new LANSCE-R wire-scanner systems. The new AFE is implemented in a National Instruments Compact RIO (cRIO) module installed a BiRa 4U BiRIO cRIO chassis specifically designed to accommodate the cRIO crate and all the wire-scanner interface, control and motor-drive electronics. A single AFE module provides interface to both X and Y wire sensors using true DC coupled transimpedance amplifiers providing collection of the wire charge signals, real-time wire integrity verification using the normal dataacquisition system, and wire bias of 0V to +/-50V. The AFE system is designed to accommodate comparatively long macropulses (>1ms) with high PRF (>120Hz) without the need to provide timing signals. The basic AFE bandwidth is flat from true DC to 50kHz with a true first-order pole at 50kHz. Numeric integration in the cRIO FPGA provides real-time pulse-to-pulse numeric integration of the AFE signal to compute the total charge collected in each macropulse. This method of charge collection eliminates the need to provide synchronization signals to the wire-scanner AFE while providing the capability to accurately record the charge from long macropulses at high PRF.

Gruchalla, Michael E. [Los Alamos National Laboratory

2011-01-01T23:59:59.000Z

315

Aging Wire Insulation Assessment by Phase Spectrum Examination of Ultrasonic Guided Waves  

E-Print Network (OSTI)

Wire integrity has become an area of concern to the aerospace community including DoD, NASA, FAA, and Industry. Over time and changing environmental conditions, wire insulation can become brittle and crack. The cracks expose the wire conductor and can be a source of equipment failure, short circuits, smoke, and fire. The technique of using the ultrasonic phase spectrum to extract material properties of the insulation is being examined. Ultrasonic guided waves will propagate in both the wire conductor and insulation. Assuming the condition of the conductor remains constant then the stiffness of the insulator can be determined by measuring the ultrasonic guided wave velocity. In the phase spectrum method the guided wave velocity is obtained by transforming the time base waveform to the frequency domain and taking the phase difference between two waveforms. The result can then be correlated with a database, derived by numerical model calculations, to extract material properties of the wire insulator. Initial laboratory tests were performed on a simple model consisting of a solid cylinder and then a solid cylinder with a polymer coating. For each sample the flexural mode waveform was identified. That waveform was then transformed to the frequency domain and a phase spectrum was calculated from a pair of waveforms. Experimental results on the simple model compared well to numerical calculations. Further tests were conducted on aircraft or mil-spec wire samples, to see if changes in wire insulation stiffness can be extracted using the phase spectrum technique.

Robert F. Anastasi; Eric I. Madaras

2003-01-01T23:59:59.000Z

316

Hydraulic pump with in-ground filtration and monitoring capability  

DOE Patents (OSTI)

A hydraulically operated pump is described for in-ground filtering and monitoring of wells or other fluid sources, including a hollow cylindrical pump housing with an inlet and an outlet, filtering devices positioned in the inlet and the outlet, a piston that fits slidably within the pump housing, and an optical cell in fluid communication with the pump housing. A conduit within the piston allows fluid communication between the exterior and one end of the piston. A pair of O-rings form a seal between the inside of the pump housing and the exterior of the piston. A flow valve positioned within the piston inside the conduit allows fluid to flow in a single direction. In operation, fluid enters the pump housing through the inlet, flows through the conduit and towards an end of the pump housing. The piston then makes a downward stroke closing the valve, thus forcing the fluid out from the pump housing into the optical cell, which then takes spectrophotometric measurements of the fluid. A spring helps return the piston back to its starting position, so that a new supply of fluid may enter the pump housing and the downward stroke can begin again. The pump may be used independently of the optical cell, as a sample pump to transport a sample fluid from a source to a container for later analysis.

Hopkins, C.D.; Livingston, R.R.; Toole, W.R. Jr.

1995-01-01T23:59:59.000Z

317

Enclosed ground-flare incinerator  

DOE Patents (OSTI)

An improved ground flare is provided comprising a stack, two or more burner assemblies, and a servicing port so that some of the burner assemblies can be serviced while others remain in operation. The burner assemblies comprise a burner conduit and nozzles which are individually fitted to the stack's burner chamber and are each removably supported in the chamber. Each burner conduit is sealed to and sandwiched between a waste gas inlet port and a matching a closure port on the other side of the stack. The closure port can be opened for physically releasing the burner conduit and supplying sufficient axial movement room for extracting the conduit from the socket, thereby releasing the conduit for hand removal through a servicing port. Preferably, the lower end of the stack is formed of one or more axially displaced lower tubular shells which are concentrically spaced for forming annular inlets for admitting combustion air. An upper tubular exhaust stack, similarly formed, admits additional combustion air for increasing the efficiency of combustion, increasing the flow of exhausted for improved atmospheric dispersion and for cooling the upper stack.

Wiseman, Thomas R. (Calgary, CA)

2000-01-01T23:59:59.000Z

318

Atomic, Molecular & Optical Sciences  

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

Atomic, Molecular and Optical Sciences Atomic, Molecular and Optical Sciences The goal of the program is to understand the structure and dynamics of atoms and molecules using photons and ions as probes. The current program is focussed on studying inner-shell photo-ionization and photo-excitation of atoms and molecules, molecular orientation effects in slow collisions, slowing and cooling molecules, and X-ray photo-excitation of laser-dressed atoms. The experimental and theoretical efforts are designed to break new ground and to provide basic knowledge that is central to the programmatic goals of the Department of Energy (DOE). Unique LBNL facilities such as the Advanced Light Source (ALS), the ECR ion sources at the 88-inch cyclotron, and the National Energy Research Scientific Computing Center (NERSC) are

319

Commercial exploitation of nanophase powder formed with exploding wire technology. Final report  

SciTech Connect

In this report, the region of the energy density under the uniform heating conditions, of the lower pressures of the gas environment and of the smaller wire diameter have been studied. Here, the theoretical investigations of exploding wire and powder formation processes are presented, the results of experimental investigations are discussed. It is demonstrated that exploding wire technique is able to produce nanophase powders of aluminum and iron oxides with the mean surface size of 30 nm or less at commercial quantities per hour and the cost of no more than $1,000 per kilogram. Here too, decisions for theoretical and technical activity during future program are recommended.

NONE

1996-10-01T23:59:59.000Z

320

Dipole-dipole shift of quantum emitters coupled to surface plasmons of a nano-wire  

E-Print Network (OSTI)

Placing quantum emitters close to a metallic nano-wire, an effective interaction can be achieved over distances large compared to the resonance wavelength due to the strong coupling between emitters and the surface plasmon modes of the wire. This leads to modified collective decay rates, as well as to Lamb and dipole-dipole shifts. In this paper we present a general method for calculating these level shifts which we subsequently apply to the case of a pair of atoms coupled to the guided modes of a nano-wire.

Dzsotjan, David; Fleischhauer, Michael

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "optical ground wire" 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

Dipole-dipole shift of quantum emitters coupled to surface plasmons of a nano-wire  

E-Print Network (OSTI)

Placing quantum emitters close to a metallic nano-wire, an effective interaction can be achieved over distances large compared to the resonance wavelength due to the strong coupling between emitters and the surface plasmon modes of the wire. This leads to modified collective decay rates, as well as to Lamb and dipole-dipole shifts. In this paper we present a general method for calculating these level shifts which we subsequently apply to the case of a pair of atoms coupled to the guided modes of a nano-wire.

David Dzsotjan; Juergen Kaestel; Michael Fleischhauer

2011-05-05T23:59:59.000Z

322

Design Ground Snow Loads for Ohio  

Science Conference Proceedings (OSTI)

The weight of snow with a mean recurrence interval of 50 years, called the design ground snow load, is used by engineers and planners to estimate the weight of snow that roofs must be designed to support National maps of ground snow load have ...

Thomas W. Schmidlin; Dennis J. Edgell; Molly A. Delaney

1992-06-01T23:59:59.000Z

323

Parameterizing a Groundness Analysis of Logic Programs  

Science Conference Proceedings (OSTI)

We present a parametric groundness analysis whose input and output are parameterized by a set of groundness parameters. The result of the analysis can be instantiated for different uses of the program. It can also be used to derive sufficient conditions ...

Lunjin Lu

2001-07-01T23:59:59.000Z

324

Sharing and groundness dependencies in logic programs  

Science Conference Proceedings (OSTI)

We investigate Jacobs and Langen's Sharing domain, introduced for the analysis of variable sharing in logic programs, and show that it is isomorphic to Marriott and Sndergaard's Pos domain, introduced for the analysis of groundness dependencies. ... Keywords: Boolean functions, abstract interpretation, dataflow analysis, global analysis, groundness analysis, program analysis, sharing analysis

Michael Codish; Harald Sndergaard; Peter J. Stuckey

1999-09-01T23:59:59.000Z

325

Ground Source Heat Pumps Ground source heat pumps (GSHPs) use the earth's  

E-Print Network (OSTI)

Ground Source Heat Pumps Fact Sheet Ground source heat pumps (GSHPs) use the earth's constant. Waste heat can be used to heat hot water. System Types There are two types of ground source heat pumps, closed loop and open loop systems. Closed loop heat pumps use the earth as the heat source and heat sink

Paulsson, Johan

326

Little Climates -- Weather Just Above The Ground  

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

Weather Just Above The Ground Weather Just Above The Ground Nature Bulletin No. 481-A February 17, 1973 Forest Preserve District of Cook County George W, Dunne, President Roland F. Eisenbeis, Supt. of Conservation LITTLE CLIMATES -- Weather Just Above the Ground In a previous bulletin we talked about little climates, underground, resulting from weather conditions in the soil. Just above the ground there is another "little climate" equally important. We frequently see evidences of it without realizing how and why they were produced. Just above the earth, there lies a narrow layer of changeable weather that is affected at both surfaces by its mighty neighbors: the land below and the restless air in the atmosphere above it. Under the spell of gravity, it clings to the ground in spite of all but the swiftest winds. In this layer there are special weather conditions overlooked by nearly everyone.

327

Ground Source Heat Pumps | Open Energy Information  

Open Energy Info (EERE)

Ground Source Heat Pumps Ground Source Heat Pumps (Redirected from Geothermal Heat Pumps) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Ground Source Heat Pumps Geothermal Technologies There are many types of Geothermal Technologies that take advantage of the earth's heat: Hydrothermal Systems Enhanced Geothermal Systems (EGS) Sedimentary Geothermal Systems Co-Produced Geothermal Systems Geothermal Direct Use Ground Source Heat Pumps GSHP Links Related documents and websites An Information Survival Kit for the Prospective Geothemral Heat Pump Owner List of Heat Pumps Incentives List of Ground Source Heat Pumps Incentives Policy Makers' Guidebook for Geothermal Heating and Cooling Various ways to configure a geothermal heat pump system. (Source: The Geo-Heat Center's Survival Kit for the Prospective Geothemral Heat Pump

328

Ground Source Heat Pumps | Open Energy Information  

Open Energy Info (EERE)

Ground Source Heat Pumps Ground Source Heat Pumps Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Ground Source Heat Pumps Geothermal Technologies There are many types of Geothermal Technologies that take advantage of the earth's heat: Hydrothermal Systems Enhanced Geothermal Systems (EGS) Sedimentary Geothermal Systems Co-Produced Geothermal Systems Geothermal Direct Use Ground Source Heat Pumps GSHP Links Related documents and websites An Information Survival Kit for the Prospective Geothemral Heat Pump Owner List of Heat Pumps Incentives List of Ground Source Heat Pumps Incentives Policy Makers' Guidebook for Geothermal Heating and Cooling Various ways to configure a geothermal heat pump system. (Source: The Geo-Heat Center's Survival Kit for the Prospective Geothemral Heat Pump

329

Fabrication of an optical component  

DOE Patents (OSTI)

A method for forming optical parts used in laser optical systems such as high energy lasers, high average power lasers, semiconductor capital equipment and medical devices. The optical parts will not damage during the operation of high power lasers in the ultra-violet light range. A blank is first ground using a fixed abrasive grinding method to remove the subsurface damage formed during the fabrication of the blank. The next step grinds and polishes the edges and forms bevels to reduce the amount of fused-glass contaminants in the subsequent steps. A loose abrasive grind removes the subsurface damage formed during the fixed abrasive or "blanchard" removal process. After repolishing the bevels and performing an optional fluoride etch, the surface of the blank is polished using a zirconia slurry. Any subsurface damage formed during the loose abrasive grind will be removed during this zirconia polish. A post polish etch may be performed to remove any redeposited contaminants. Another method uses a ceria polishing step to remove the subsurface damage formed during the loose abrasive grind. However, any residual ceria may interfere with the optical properties of the finished part. Therefore, the ceria and other contaminants are removed by performing either a zirconia polish after the ceria polish or a post ceria polish etch.

Nichols, Michael A. (Livermore, CA); Aikens, David M. (Pleasanton, CA); Camp, David W. (Oakland, CA); Thomas, Ian M. (Livermore, CA); Kiikka, Craig (Livermore, CA); Sheehan, Lynn M. (Livermore, CA); Kozlowski, Mark R. (Livermore, CA)

2000-01-01T23:59:59.000Z

330

DIAMOND WIRE CUTTING OF THE TOKAMAK FUSION TEST REACTOR  

Science Conference Proceedings (OSTI)

The Tokamak Fusion Test Reactor (TFTR) is a one-of-a-kind, tritium-fueled fusion research reactor that ceased operation in April 1997. As a result, decommissioning commenced in October 1999. The 100 cubic meter volume of the donut-shaped reactor makes it the second largest fusion reactor in the world. The deuterium-tritium experiments resulted in contaminating the vacuum vessel with tritium and activating the materials with 14 Mev neutrons. The total tritium content within the vessel is in excess of 7,000 Curies while dose rates approach 50 mRem/hr. These radiological hazards along with the size of the Tokamak present a unique and challenging task for dismantling. Engineers at the Princeton Plasma Physics Laboratory (PPPL) decided to investigate an alternate, innovative approach for dismantlement of the TFTR vacuum vessel: diamond wire cutting technology. In August 1999, this technology was successfully demonstrated and evaluated on vacuum vessel surrogates. Subsequently, the techno logy was improved and redesigned for the actual cutting of the vacuum vessel. 10 complete cuts were performed in a 6-month period to complete the removal of this unprecedented type of D&D activity.

Rule, Keith; Perry, Erik; Parsells, Robert

2003-02-27T23:59:59.000Z

331

Diamond Wire Cutting of the Tokamak Fusion Test Reactor  

Science Conference Proceedings (OSTI)

The Tokamak Fusion Test Reactor (TFTR) is a one-of-a-kind, tritium-fueled fusion research reactor that ceased operation in April 1997. As a result, decommissioning commenced in October 1999. The 100 cubic meter volume of the donut-shaped reactor makes it the second largest fusion reactor in the world. The deuterium-tritium experiments resulted in contaminating the vacuum vessel with tritium and activating the materials with 14 MeV neutrons. The total tritium content within the vessel is in excess of 7,000 Curies, while dose rates approach 50 mRem/hr. These radiological hazards along with the size of the tokamak present a unique and challenging task for dismantling. Engineers at the Princeton Plasma Physics Laboratory (PPPL) decided to investigate an alternate, innovative approach for dismantlement of the TFTR vacuum vessel: diamond wire cutting technology. In August 1999, this technology was successfully demonstrated and evaluated on vacuum vessel surrogates. Subsequently, the technology was improved and redesigned for the actual cutting of the vacuum vessel. Ten complete cuts were performed in a 6-month period to complete the removal of this unprecedented type of D&D (Decontamination and Decommissioning) activity.

Keith Rule; Erik Perry; Robert Parsells

2003-01-31T23:59:59.000Z

332

An Optical Array Instrument for Shape and Fall Velocity Measurements of Hydrometeors  

Science Conference Proceedings (OSTI)

A ground-based optical array instrument for the measurement of shapes, sizes, and fall velocities of freely falling hydrometeors is presented. The instrument, the Hydrometeor Velocity and Shape Detector (HVSD), is designed to accurately measure ...

E. Barthazy; S. Gke; R. Schefold; D. Hgl

2004-09-01T23:59:59.000Z

333

Interannual Variations of Aerosol Optical Depth over Coastal India: Relation to Synoptic Meteorology  

Science Conference Proceedings (OSTI)

Interannual variations in spectral aerosol optical depths (AOD) were examined using the data obtained from a chain of ground-based multiwavelength solar radiometers from various locations of the Indian peninsula during the dry winter season (...

Auromeet Saha; K. Krishna Moorthy; K. Niranjan

2005-07-01T23:59:59.000Z

334

Estimating Cloud Field Albedo Using One-Dimensional Series Of Optical Depth  

Science Conference Proceedings (OSTI)

This study examines the ability to estimate regional cloud albedo using 1D series of cloud optical depth ? similar to those inferred from ground-based microwave radiometers. The investigation has two facets: use of appropriate radiative transfer ...

Howard W. Barker

1996-10-01T23:59:59.000Z

335

Optical Characteristics of OTD Flashes and the Implications for Flash-Type Discrimination  

Science Conference Proceedings (OSTI)

Flashes detected by the Optical Transient Detector (OTD) that occur over the continental United States (CONUS) are intercompared with data from the National Lightning Detection Network (NLDN) in order to partition the OTD flashes into ground and ...

W. J. Koshak

2010-11-01T23:59:59.000Z

336

Relations between Optically Derived Aerosol Parameters, Humidity, and Air-Quality Data in an Urban Atmosphere  

Science Conference Proceedings (OSTI)

This paper deals with diurnal and mensual correlations between ground-based atmospheric observations of columnar and surface optical parameters, standard surface humidity parameters, and surface air-quality data. The implications of a significant ...

N. T. O'Neill; A. Royer; P. Cot; L. J. B. McArthur

1993-09-01T23:59:59.000Z

337

THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER  

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

THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER FACILITIES THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER FACILITIES Section 1308 of the Energy Independence and Security Act of 2007 ("EISA 2007") directed the Secretary of Energy, in consultation with the States, to undertake a study of the laws affecting the siting of privately-owned distribution wires on or across public rights of way and to consider the impact of those laws on the development of combined heat and power ("CHP") facilities, as well as to determine whether a change in those laws would impact utility operations, costs or reliability, or impact utility customers. The study is also to consider whether changing the laws would

338

A Superconducting Joint Technique for MgB[subscript 2] Round Wires  

E-Print Network (OSTI)

This paper describes a technique to superconductively splice multifilament MgB2 wires. To date the technique has achieved joints capable of carrying a superconducting current of 200 A at 10 K in self field. Joints details, ...

Yao, Weijun

339

D18: Fracture Behavior of High Strength Stainless Steel Wire Rope ...  

Science Conference Proceedings (OSTI)

In order to develop new ways to improve the fatigue life of the high strength stainless steel wire rope, the study on the fracture behavior under fatigue test is basic...

340

We Energies- Livestock and Dairy Farm Electrical Re-wiring Program  

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

Any We Energies dairy farm customer can apply for assistance with a re-wiring project. We Energies would pay the first $1,000 of the project and 50 percent of remaining costs up to a total grant of...

Note: This page contains sample records for the topic "optical ground wire" 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

Deformation Response of Cold-Drawn and Annealed MP35N Wire  

Science Conference Proceedings (OSTI)

In this study, low-Ti, MP35N alloy wire, 100 ?m in diameter, was characterized both in the as-drawn and annealed conditions. In the as-drawn condition,...

342

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

Science Conference Proceedings (OSTI)

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

Hui Guo; Ying Jiang

2006-11-01T23:59:59.000Z

343

Modeling wire delay, area, power, and performance in a simulation infrastructure  

Science Conference Proceedings (OSTI)

We present Justice, a set of extensions to the Liberty simulation infrastructure that model chip area, wire length, and power consumption. Based on an architectural specification of a processor, Justice estimates the area and per-access power consumption ...

N. P. Carter; A. Hussain

2006-03-01T23:59:59.000Z

344

Ice Accretion on Wires and Anti-Icing Induced by Joule Effect  

Science Conference Proceedings (OSTI)

This study concerns both the formation of ice accreted around wires due to rotation from gravitational and aerodynamic forces, and the anti-icing induced by the Joule effect. The experiments have been carried out in an instrumented wind tunnel ...

P. Personne; J-F. Gayet

1988-02-01T23:59:59.000Z

345

STUDY OF THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT  

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

STUDY OF THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED STUDY OF THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER FACILITIE STUDY OF THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER FACILITIE Section 1308 of the Energy Independence and Security Act of 2007 ("EISA 2007") directed the Secretary of Energy, in consultation with the States, to undertake a study of the laws affecting the siting of privately-owned distribution wires on or across public rights of way and to consider the impact of those laws on the development of combined heat and power ("CHP") facilities, as well as to determine whether a change in those laws would impact utility operations, costs or reliability, or impact utility customers. The study is also to consider whether a change in those laws

346

THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER  

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

THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER FACILITIES THE EFFECT OF PRIVATE WIRE LAWS ON DEVELOPMENT OF COMBINED HEAT AND POWER FACILITIES Section 1308 of the Energy Independence and Security Act of 2007 ("EISA 2007") directed the Secretary of Energy, in consultation with the States, to undertake a study of the laws affecting the siting of privately-owned distribution wires on or across public rights of way and to consider the impact of those laws on the development of combined heat and power ("CHP") facilities, as well as to determine whether a change in those laws would impact utility operations, costs or reliability, or impact utility customers. The study is also to consider whether changing the laws would

347

a-Si:H Grown by Hot-Wire CVD at Ultra-High Deposition Rates  

DOE Green Energy (OSTI)

We increase the deposition rate of growing hydrogenated amorphous-silicon (a-Si:H) by the hot-wire chemical vapor depositon (HWCVD) technique by adding filaments (two) and decreasing the filament(s) to substrate distance.

Xu, Y.; Nelson, B. P.; Mahan, A. H.; Williamson, D. L.; Crandall, R. S.; Iwaniczko, E.; Wang, Q.

2000-01-01T23:59:59.000Z

348

Efficient production of hot plasmas through multiple-wire implosion in transmission line generators  

Science Conference Proceedings (OSTI)

Model equations for the implosion of multiple-wire arrays mounted across the electrodes of a transmission line generator are used to obtain an expression for the energy-coupling efficiency. For a useful class of imploding loads, the efficiency is shown to depend on a single dimensionless parameter. Furthermore, the efficiency curve has a maximum, and this permits an explicit optimization of the wire load parameters in terms of the machine parameters.

Bloomberg, H.W.

1980-01-01T23:59:59.000Z

349

Wavelet-like bases for thin-wire integral equations in electromagnetics  

Science Conference Proceedings (OSTI)

In this paper, wavelets are used in solving, by the method of moments, a modified version of the thin-wire electric field integral equation, in frequency domain. The time domain electromagnetic quantities, are obtained by using the inverse discrete fast ... Keywords: 02.30.Rz, 02.60.Cb, 02.70.-c, 41.20.-q, 41.20.Jb, M-band wavelet transform, Method of moments, Preconditioning, Thin-wire integral equations in electromagnetics

E. Francomano; A. Tortorici; E. Toscano; G. Ala; F. Viola

2005-03-01T23:59:59.000Z

350

Heat transfer enhancement in a tube with equilateral triangle cross sectioned coiled wire inserts  

SciTech Connect

The heat transfer and pressure drop were experimentally investigated in a coiled wire inserted tube in turbulent flow regime. The coiled wire has equilateral triangular cross section and was inserted separately from the tube wall. The experiments were carried out with three different pitch ratios (P/D = 1, 2 and 3) and two different ratio of equilateral triangle length side to tube diameter (a/D = 0.0714 and 0.0892) at a distance (s) of 1 mm from the tube wall in the range of Reynolds number from 3500 to 27,000. Uniform heat flux was applied to the external surface of the tube and air was selected as fluid. The experimental results obtained from a smooth tube were compared with those from the studies in literature for validation of experimental set-up. The use of coiled wire inserts leads to a considerable increase in heat transfer and pressure drop over the smooth tube. The Nusselt number rises with the increase of Reynolds number and wire thickness and the decrease of pitch ratio. The highest overall enhancement efficiency of 36.5% is achieved for the wire with a/D = 0.0892 and P/D = 1 at Reynolds number of 3858. Consequently, the experimental results reveal that the best operating regime of all coiled wire inserts is detected at low Reynolds number, leading to more compact heat exchanger. (author)

Gunes, Sibel; Ozceyhan, Veysel [Department of Mechanical Engineering, Faculty of Engineering, Erciyes University, Kayseri 38039 (Turkey); Buyukalaca, Orhan [Department of Energy Systems Engineering, Faculty of Engineering, Osmaniye Korkut Ata University, Osmaniye 80000 (Turkey)

2010-09-15T23:59:59.000Z

351

Development of practical high temperature superconducting wire for electric power applications  

Science Conference Proceedings (OSTI)

The technology of high temperature superconductivity has gone from beyond mere scientific curiosity into the manufacturing environment. Single lengths of multifilamentary wire are now produced that are over 200 meters long and that carry over 13 amperes at 77 K. Short-sample critical current densities approach 5 {times} 10{sup 4} A/cm{sup 2} at 77 K. Conductor requirements such as high critical current density in a magnetic field, strain-tolerant sheathing materials, and other engineering properties are addressed. A new process for fabricating round BSCCO-2212 wire has produced wires with critical current densities as high as 165,000 A/cm{sup 2} at 4.2 K and 53,000 A/cm{sup 2} at 40 K. This process eliminates the costly, multiple pressing and rolling steps that are commonly used to develop texture in the wires. New multifilamentary wires with strengthened sheathing materials have shown improved yield strengths up to a factor of five better than those made with pure silver. Many electric power devices require the wire to be formed into coils for production of strong magnetic fields. Requirements for coils and magnets for electric power applications are described.

Hawsey, R.A. [Oak Ridge National Lab., TN (United States); Sokolowski, R.S.; Haldar, P. [Intermagnetics General Corp., Latham, NY (United States); Motowidlo, L.R. [IGC/Advanced Superconductors, Inc., Waterbury, CT (United States)

1994-09-01T23:59:59.000Z

352

Annual Coded Wire Tag Program; Oregon Stock Assessment, Annual Report 2002.  

DOE Green Energy (OSTI)

This annual report is in fulfillment of contract obligations with Bonneville Power Administration which is the funding source for the Oregon Department of Fish and Wildlife project 'Annual Stock Assessment - Coded Wire Tag Program (ODFW)'. Results for the 2002 contract period: Objective 1 - Over 1 million juvenile salmon were coded-wire by this program (Table 1). This accounted for about 20% of the fish ODFW coded-wire tagged in 2002 for release in the Columbia Basin; Objective 2 - ODFW recovered and processed over 50,000 snouts collected from coded-wire tagged fish (Table 2); Objective 3 - The survival data summarized below includes results for coded-wire groups funded by this program as well as coded-wire groups funded from other sources; Objective 4 - The last returns of experimental groups of coho marked with VIE tags occurred in 2002 at Sandy Hatchery. This sampling showed that 26 of 67 jack coho and 1 of 2,223 adult coho VIE marked as juveniles retained the VIE mark as adults.

Lewis, Mark; Mallette, Christine; Murray, William

2003-03-01T23:59:59.000Z

353

Addressing the efficiency of the energy transfer to the water flow by underwater electrical wire explosion  

SciTech Connect

Experimental and hydrodynamic simulation results of submicrosecond time scale underwater electrical explosions of planar Cu and Al wire arrays are presented. A pulsed low-inductance generator having a current amplitude of up to 380 kA was used. The maximum current rise rate and maximum power achieved during wire array explosions were dI/dt<=830 A/ns and approx10 GW, respectively. Interaction of the water flow generated during wire array explosion with the target was used to estimate the efficiency of the transfer of the energy initially stored in the generator energy to the water flow. It was shown that efficiency is in the range of 18%-24%. In addition, it was revealed that electrical explosion of the Al wire array allows almost double the energy to be transferred to the water flow due to efficient combustion of the Al wires. The latter allows one to expect a significant increase in the pressure at the front of converging strong shock waves in the case of cylindrical Al wire array underwater explosion.

Efimov, S.; Gurovich, V. Tz.; Bazalitski, G.; Fedotov, A.; Krasik, Ya. E. [Physics Department, Technion, Haifa 32000 (Israel)

2009-10-01T23:59:59.000Z

354

Definition: Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Ground Electromagnetic Techniques Jump to: navigation, search Dictionary.png Ground Electromagnetic Techniques Ground electromagnetic techniques measure electromagnetic fields in order to determine subsurface electrical resistivity with the earth surface as the observation point.[1] View on Wikipedia Wikipedia Definition The electromagnetic force is one of the four fundamental interactions in nature, the other three being the strong interaction, the weak interaction, and gravitation. This force is described by electromagnetic fields, and has innumerable physical instances including the interaction of electrically charged particles and the interaction of uncharged magnetic force fields with electrical conductors. The word

355

Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Ground Electromagnetic Techniques Ground Electromagnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Ground Electromagnetic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png

356

OpticsCommunications95 (1993) 255-259 North-Holland  

E-Print Network (OSTI)

is induced in the electronic ground state of the atomic medium by the optical pumping process and forced into Larmor precession by the magnetic field. This polarization of the an- gular momentum substates leads,6 ]. On the other hand, precessing ground state magnetization can be pro- duced very efficiently by modulated

Suter, Dieter

357

Electrical Core Transformer for Grid Improvement Incorporating Wire Magnetic Components  

SciTech Connect

The research reported herein adds to the understanding of oil-immersed distribution transformers by exploring and demonstrating potential improvements in efficiency and cost utilizing the unique Buswell approach wherein the unit is redesigned, replacing magnetic sheet with wire allowing for improvements in configuration and increased simplicity in the build process. Exploration of new designs is a critical component in our drive to assure reduction of energy waste, adequate delivery to the citizenry, and the robustness of U.S. manufacturing. By moving that conversation forward, this exploration adds greatly to our base of knowledge and clearly outlines an important avenue for further exploration. This final report shows several advantages of this new transformer type (outlined in a report signed by all of our collaborating partners and included in this document). Although materials development is required to achieve commercial potential, the clear benefits of the technology if that development were a given is established. Exploration of new transformer types and further work on the Buswell design approach is in the best interest of the public, industry, and the United States. Public benefits accrue from design alternatives that reduce the overall use of energy, but it must be acknowledged that new DOE energy efficiency standards have provided some assurance in that regard. Nonetheless the burden of achieving these new standards has been largely shifted to the manufacturers of oil-immersed distribution transformers with cost increasing up to 20% of some units versus 2006 when this investigation was started. Further, rising costs have forced the industry to look closely are far more expensive technologies which may threaten U.S. competitiveness in the distribution transformer market. This concern is coupled with the realization that many units in the nation's grid are beyond their optimal life which suggests that the nation may be headed for an infrastructure crisis that U.S. industry is ill prepared to handle which could further challenge U.S. competitiveness.

Harrie R. Buswell, PhD; Dennis Jacobs, PhD; Steve Meng

2012-03-26T23:59:59.000Z

358

Ionospheric modification experiments with satellite-borne and ground-based transmitters  

SciTech Connect

A research program is outlined to investigate the nonlinear VLF propagation and interaction with ionospheric plasmas with the satellite-borne and ground-based transmitters. Coordinated space and ground-based ionospheric modification experiments have been planned to study nonlinear propagation and mode conversion of VLF waves into lower hybrid waves in the presence of HF heater created ionospheric irregularities. Space experiments with the mother (ACTIVE)-daughter (CZAK) satellites are also discussed to examine the excitation of parametric instability by powerful VLF waves. Proposed ground-based radar, optical, and VLF measurements can provide effective diagnoses of the induced ionospheric effects. It is expected that electron acceleration caused by the lower hybrid waves will produce intense airglow emissions. In addition, a broad height distribution of enhanced plasma lines is also expected for radars to detect.

Lee, M.C.

1990-05-03T23:59:59.000Z

359

Grounded Renewable Energy | Open Energy Information  

Open Energy Info (EERE)

Grounded Renewable Energy Grounded Renewable Energy Jump to: navigation, search Name Grounded Renewable Energy Place Carbondale, Colorado Zip 81623 Sector Renewable Energy, Solar Product Grounded Renewable Energy designs turn-key solar systems for homes and businesses in Colorado. Coordinates 41.573959°, -75.501361° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.573959,"lon":-75.501361,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

360

Earthquake ground motion modeling on parallel computers  

Science Conference Proceedings (OSTI)

We describe the design and discuss the performance of a parallel elastic wave propagation simulator that is being used to model and study earthquake-induced ground motion in large sedimentary basins. The components of the system include mesh generators, ...

Hesheng Bao; Jacobo Bielak; Omar Ghattas; Loukas F. Kallivokas; David R. O'Hallaron; Jonathan R. Shewchuk; Jifeng Xu

1996-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "optical ground wire" 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

Solid waste burial grounds interim safety analysis  

SciTech Connect

This Interim Safety Analysis document supports the authorization basis for the interim operation and restrictions on interim operations for the near-surface land disposal of solid waste in the Solid Waste Burial Grounds. The Solid Waste Burial Grounds Interim Safety Basis supports the upgrade progress for the safety analysis report and the technical safety requirements for the operations in the Solid Waste Burial Grounds. Accident safety analysis scenarios have been analyzed based on the significant events identified in the preliminary hazards analysis. The interim safety analysis provides an evaluation of the operations in the Solid Waste Burial Grounds to determine if the radiological and hazardous material exposures will be acceptable from an overall health and safety standpoint to the worker, the onsite personnel, the public, and the environment.

Saito, G.H.

1994-10-01T23:59:59.000Z

362

Embodied object schemas for grounding language use  

E-Print Network (OSTI)

This thesis presents the Object Schema Model (OSM) for grounded language interaction. Dynamic representations of objects are used as the central point of coordination between actions, sensations, planning, and language ...

Hsiao, Kai-yuh, 1977-

2007-01-01T23:59:59.000Z

363

Grounding linguistic analysis in control applications  

E-Print Network (OSTI)

This thesis addresses the problem of grounding linguistic analysis in control applications, such as automated maintenance of computers and game playing. We assume access to natural language documents that describe the ...

Branavan, Satchuthananthavale Rasiah Kuhan

2012-01-01T23:59:59.000Z

364

Ground Clutter Canceling with a Regression Filter  

Science Conference Proceedings (OSTI)

This paper explores ground clutter filtering with a class of cancelers that use regression. Regression filters perform this task in a simple manner, resulting in similar or better performance than the fifth-order elliptic filter implemented in ...

Sebastin M. Torres; Dusan S. Zrnic

1999-10-01T23:59:59.000Z

365

Commonality of ground systems in launch operations  

E-Print Network (OSTI)

NASA is examining the utility of requiring a certain degree of commonality in both flight and ground systems in the Constellation Program. While the benefits of commonality seem obvious in terms of minimizing upfront ...

Quinn, Shawn M

2008-01-01T23:59:59.000Z

366

Ground-state Properties of Small-Size Nonlinear Dynamical Lattices  

E-Print Network (OSTI)

We investigate the ground state of a system of interacting particles in small nonlinear lattices with M > 2 sites, using as a prototypical example the discrete nonlinear Schroedinger equation that has been recently used extensively in the contexts of nonlinear optics of waveguide arrays, and Bose-Einstein condensates in optical lattices. We find that, in the presence of attractive interactions, the dynamical scenario relevant to the ground state and the lowest-energy modes of such few-site nonlinear lattices reveals a variety of nontrivial features that are absent in the large/infinite lattice limits: the single-pulse solution and the uniform solution are found to coexist in a finite range of the lattice intersite coupling where, depending on the latter, one of them represents the ground state; in addition, the single-pulse mode does not even exist beyond a critical parametric threshold. Finally, the onset of the ground state (modulational) instability appears to be intimately connected with a non-standard (``double transcritical'') type of bifurcation that, to the best of our knowledge, has not been reported previously in other physical systems.

P. Buonsante; P. Kevrekidis; V. Penna; A. Vezzani

2006-04-14T23:59:59.000Z

367

Grounding and Lightning Protection of Capacitor Controllers  

Science Conference Proceedings (OSTI)

This is the third report in EPRI's capacitor reliability study. It deals with capacitor controller grounding and lightning protection. Prior reports dealt with nuisance fuse operations, operating and construction practices, and use of distribution line capacitors for transmission voltage support. Simulations were performed to investigate various controller mounting locations and grounding configurations and their impact on the magnitude of surges reaching the controller. Once these aspects of capacitor c...

2005-03-08T23:59:59.000Z

368

Ground Penetrating Imaging Radar Phase II  

Science Conference Proceedings (OSTI)

EPRI project "Ground Penetrating Imaging Radar Phase II," also called the "GPiR Project," started in August 1998 at Schlumberger-Doll Research, a division of Schlumberger Technology Corporation. Its goal was to determine if modern ground-penetrating radar (GPR) could make three-dimensional (3D) images of buried utility lines accurate and detailed enough to help utility companies better manage their underground infrastructure. Work began with a comparison of commercial and prototype GPR systems in the lab...

2001-06-20T23:59:59.000Z

369

Ground water protection management program plan  

SciTech Connect

U.S. Department of Energy (DOE) Order 5400.1 requires the establishment of a ground water protection management program to ensure compliance with DOE requirements and applicable federal, state, and local laws and regulations. The Uranium Mill Tailings Remedial Action (UMTRA) Project Office was prepared this Ground Water Protection Management Program Plan (ground water protection plan) whose scope and detail reflect the program`s significance and address the seven activities required in DOE Order 5400.1, Chapter III, for special program planning. This ground water protection plan highlights the methods designed to preserve, protect, and monitor ground water resources at UMTRA Project processing and disposal sites. The plan includes an overview of the remedial action status at the 24 designated processing sites and identifies technical guidance documents and site-specific documents for the UMTRA Project ground water protection management program. In addition, the plan addresses the general information required to develop a water resources protection strategy at the permanent disposal sites. Finally, the plan describes ongoing activities that are in various stages of development at UMTRA Project sites.

Not Available

1994-02-01T23:59:59.000Z

370

Scintillation counter and wire chamber front end modules for high energy physics experiments  

SciTech Connect

This document describes two front-end modules developed for the proposed MIPP upgrade (P-960) experiment at Fermilab. The scintillation counter module was developed for the Plastic Ball detector time and charge measurements. The module has eight LEMO 00 input connectors terminated with 50 ohms and accepts negative photomultiplier signals in the range 0.25...1000 pC with the maximum input voltage of 4.0 V. Each input has a passive splitter with integration and differentiation times of {approx}20 ns. The integrated portion of the signal is digitized at 26.55 MHz by Analog Devices AD9229 12-bit pipelined 4-channel ADC. The differentiated signal is discriminated for time measurement and sent to one of the four TMC304 inputs. The 4-channel TMC304 chip allows high precision time measurement of rising and falling edges with {approx}100 ps resolution and has internal digital pipeline. The ADC data is also pipelined which allows deadtime-less operation with trigger decision times of {approx}4 {micro}s. The wire chamber module was developed for MIPP EMCal detector charge measurements. The 32-channel digitizer accepts differential analog signals from four 8-channel integrating wire amplifiers. The connection between wire amplifier and digitizer is provided via 26-wire twist-n-flat cable. The wire amplifier integrates input wire current and has sensitivity of 275 mV/pC and the noise level of {approx}0.013 pC. The digitizer uses the same 12-bit AD9229 ADC chip as the scintillator counter module. The wire amplifier has a built-in test pulser with a mask register to provide testing of the individual channels. Both modules are implemented as a 6Ux220 mm VME size board with 48-pin power connector. A custom europack (VME) 21-slot crate is developed for housing these front-end modules.

Baldin, Boris; DalMonte, Lou; /Fermilab

2011-01-01T23:59:59.000Z

371

Insulation and Heat Treatment of Bi-2212 Wire for Wind-and-React Coils  

Science Conference Proceedings (OSTI)

Higher Field Magnets demand higher field materials such as Bi-2212 round superconducting wire. The Bi-2212 wire manufacture process depends on the coil fabrication method and wire insulation material. Considering the wind-and-react method, the coil must unifirmly heated to the melt temperature and uniformly cooled to the solidification temperature. During heat treat cycle for tightly wound coils, the leakage melt from conductor can chemically react with insulation on the conductor and creat short turns in the coils. In this research project, conductor, insulation, and coils are made to systemically study the suitable insulation materials, coil fabrication method, and heat treatment cycles. In this phase I study, 800 meters Bi-2212 wire with 3 different insulation materials have been produced. Best insulation material has been identified after testing six small coils for insulation integrity and critical current at 4.2 K. Four larger coils (2" dia) have been also made with Bi-2212 wrapped with best insulation and with different heattreatment cycle. These coils were tested for Ic in a 6T background field and at 4.2 K. The test result shows that Ic from 4 coils are very close to short samples (1 meter) result. It demonstrates that HTS coils can be made with Bi-2212 wire with best insulation consistently. Better wire insulation, improving coil winding technique, and wire manufacture process can be used for a wide range of high field magnet application including acclerators such as Muon Collider, fusion energy research, NMR spectroscopy, MRI, and other industrial magnets.

Peter K. F. Hwang

2007-10-22T23:59:59.000Z

372

Grounding Analysis in Heterogeneous Soil Models: Application to Underground Substations  

E-Print Network (OSTI)

Grounding Analysis in Heterogeneous Soil Models: Application to Underground Substations Ignasi in forthcoming publications. Keywords-grounding analysis; earthing analysis, underground substations; I to a river (at substations next to hydroelectric dams), or the grounding system of a buried electrical

Colominas, Ignasi

373

Ground-state OH observations towards NGC 6334  

E-Print Network (OSTI)

We have made observations of the four hyperfine transitions of the 2Pi(3/2), J=3/2 ground state of OH at 1612, 1665, 1667 and 1720 MHz and the related 1.6-GHz continuum emission, towards NGC 6334 using the Australia Telescope Compact Array. The observations covered all the major radio continuum concentrations aligned along the axis of NGC 6334 (V, A to F). We have detected seven OH masers plus a possible faint eighth maser; two of these masers are located towards NGC 6334-A. Absorption at 1665 and 1667 MHz was detected towards almost all the continuum distribution. All transitions showed non-LTE behaviour. The 1667-/1665-MHz intensity ratios ranged from 1.0 to 1.2, significantly less than their LTE value of 1.8. The results of the OH `Sum Rule' suggest that this discrepancy cannot be explained solely by high optical depths. The 1612- and 1720-MHz line-profiles showed conjugate behaviour whereby one line was in absorption and the other in emission. In addition, the profiles commonly showed a flip from absorption to emission and vice versa, which has been interpreted as a density gradient. The OH line-to-continuum distribution, optical depth and velocity trends are consistent with a bar-like shape for the molecular gas which wraps around the continuum emission.

K. J. Brooks; J. B. Whiteoak

2000-10-19T23:59:59.000Z

374

Stellar Population in LLAGN.I: Ground-based observations  

E-Print Network (OSTI)

(Abridge): We present a spectroscopic study of the stellar populations of Low Luminosity AGN (LLAGN). Our main goal is to determine whether the stars who live in the innermost (100 pc-scale) regions of these galaxies are in some way related to the emission line properties, which would imply a link between the stellar population and the ionization mechanism. High signal to noise, ground based long-slit spectra in the 3500--5500 A interval were collected for 60 galaxies.Our main findings are: (1) Few LLAGN have a detectable young (weak [OI] emission, but rare (10 %) in LLAGN with stronger [OI]. This is intriguing since LLAGN with weak [OI] have been previously hypothesized to be ``transition objects'' in which both an AGN and young stars contribute to the emission-line excitation. Massive stars, if present, are completely outshone by intermediate age and old stars in the optical. This happens in at least a couple of objects where independent UV spectroscopy detects young starbursts not seen in the optical. (4) Objects with predominantly old stars span the whole range of [OI]/Halpha values, but (5) sources with significant young and/or intermediate age populations are nearly all (90%) weak [OI] emitters.

Roberto Cid Fernandes; Rosa M. Gonzalez Delgado; Henrique Schmitt; Thaisa Storchi-Bergmann; Lucimara P. Martins; Enrique Perez; Timothy Heckman; Claus Leitherer; Daniel Schaerer

2004-01-21T23:59:59.000Z

375

Ground potential rise characteristics of urban step-down substations fed by power cables - A practical example  

Science Conference Proceedings (OSTI)

This paper shows some special ground potential rise characteristics of substations fed by power cables. These characteristics were detected during the study of the interconnected ground system of 14 step-down urban substations fed by the 138 kV underground cable network serving the South Zone of Rio de Janeiro city in Brazil. As this type of system is very common in large cities, the subject can be of general interest for the industry. It was verified that when a fault occurs at a ''cable substation'' (a substation fed exclusively by power cables), almost no ground potential effects were detected at the faulted substation or at the other ''cable substations'' of the 138 kV network. However, high values of ground potential occurred at the ''transition substations'' (substations in which the power cables are connected to overhead 138 kV transmission lines, with steel groundwires). That ground potential was enough to produce shocks and equipment damage in certain ''transition substations''. It was verified that this problem has no relation with potential transfer. The paper shows also that the utilization of overhead lines with ACSR groundwires on the initial spans closer to the ''transition substation'' would be enough to avoid the problem. Even if the ACSR conductor is used only at the initial section of one of the lines, a reduction of the problem would be obtained. The paper shows also that the utilization of ACSR ground-wires near the ''transition substations'' contributes to reduce the amount of the copper necessary to control step, touch and mess potentials in these substations. Additional mitigation procedures are also examined in the paper.

Sobral, S.T. (IESA - Internacional de Engenharia S.A. (BR)); Barbosa, J.O.; Numes, J.V.C.; Chinelli, E.; Netto, A.F. (Light - Servicos de Eletricidade S.A. (BR)); Costa, V.S.; Campos, J.H. (Eletrobras - Centrais Eletricas, Brasileiras (BR))

1988-10-01T23:59:59.000Z

376

Assessment of Proton Deflectometry for Exploding Wire Experiments  

SciTech Connect

This project provides the first demonstration of the application of proton deflectometry for the diagnosis of electromagnetic field topology and current-carrying regions in Z-pinch plasma experiments. Over the course of this project several milestones were achieved. High-energy proton beam generation was demonstrated on the short-pulse high-intensity Leopard laser, (10 Joules in ~350 femtoseconds, and the proton beam generation was shown to be reproducible. Next, protons were used to probe the electromagnetic field structure of short circuit loads in order to benchmark the two numerical codes, the resistive-magnetohydrodynamics (MHD) code, Gorgon, and the hybrid particle-in-cell code, LSP for the interpretation of results. Lastly, the proton deflectometry technique was used to map the magnetic field structure of pulsed-power-driven plasma loads including wires and supersonic jets formed with metallic foils. Good agreement between the modeling and experiments has been obtained. The demonstrated technique holds great promise to significantly improve the understanding of current flow and electromagnetic field topology in pulsed power driven high energy density plasmas. Proton probing with a high intensity laser was for the first time implemented in the presence of the harsh debris and x-ray producing z-pinch environment driven by a mega-ampere-scale pulsed-power machine. The intellectual merit of the program was that it investigated strongly driven MHD systems and the influence of magnetic field topology on plasma evolution in pulsed power driven plasmas. The experimental program involved intense field-matter interaction in the generation of the proton probe, as well as the generation of plasma subjected to 1 MegaGauss scale magnetic fields. The computational aspect included two well-documented codes, in combination for the first time to provide accurate interpretation of the experimental results. The broader impact included the support of 2 graduate students, one at UCSD and one at NTF, who were exposed to both the experimental physics work, the MHD and PIC modeling of the system. A first generation college undergraduate student was employed to assist in experiments and data analysis throughout the project. Data resulting from the research program were broadly disseminated by publication in scientific journals, and presentation at international and national conferences and workshops.

Beg, Farhat Nadeem [University of California San Diego] [University of California San Diego

2013-09-25T23:59:59.000Z

377

Optical data latch  

DOE Patents (OSTI)

An optical data latch is formed on a substrate from a pair of optical logic gates in a cross-coupled arrangement in which optical waveguides are used to couple an output of each gate to an photodetector input of the other gate. This provides an optical bi-stability which can be used to store a bit of optical information in the latch. Each optical logic gate, which can be an optical NOT gate (i.e. an optical inverter) or an optical NOR gate, includes a waveguide photodetector electrically connected in series with a waveguide electroabsorption modulator. The optical data latch can be formed on a III-V compound semiconductor substrate (e.g. an InP or GaAs substrate) from III-V compound semiconductor layers. A number of optical data latches can be cascaded to form a clocked optical data shift register.

Vawter, G. Allen (Corrales, NM)

2010-08-31T23:59:59.000Z

378

Ground-coupled heat pump systems: a pumping analysis.  

E-Print Network (OSTI)

??Ground-coupled heat pump (GCHP) systems use the ground as a heat source or sink that absorbs heat from or rejects heat to the soil, respectively; (more)

Mays, Cristin Jean

2012-01-01T23:59:59.000Z

379

Montana Ground Water Assessment Act (Montana) | Department of...  

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

Ground Water Assessment Act (Montana) Montana Ground Water Assessment Act (Montana) Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State...

380

Ground Gravity Survey At Marysville Mt Area (Blackwell) | Open...  

Open Energy Info (EERE)

Ground Gravity Survey At Marysville Mt Area (Blackwell) Exploration Activity Details Location Marysville Mt Area Exploration Technique Ground Gravity Survey Activity Date...

Note: This page contains sample records for the topic "optical ground wire" 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

Designated Ground Water Basin Map | Open Energy Information  

Open Energy Info (EERE)

Designated Ground Water Basin Map Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Reference Material: Designated Ground Water Basin Map Details Activities (0) Areas...

382

Deputy Secretary Poneman Attends Ground Breaking at Tennessee...  

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

Home Deputy Secretary Poneman Attends Ground Breaking at Tennessee Advanced Vehicle Battery Plant Deputy Secretary Poneman Attends Ground Breaking at Tennessee Advanced Vehicle...

383

Department of Veterans Affairs, FONSI - Ground mounted solar...  

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

Ground mounted solar photovoltaic power at San Joaquin National Cemetery Department of Veterans Affairs, FONSI - Ground mounted solar photovoltaic power at San Joaquin National...

384

Recovery Act - Geothermal Technologies Program:Ground Source...  

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

Recovery Act - Geothermal Technologies Program:Ground Source Heat Pumps Recovery Act - Geothermal Technologies Program:Ground Source Heat Pumps A detailled description of the...

385

EA-1406: Ground Water Compliance at the New Rifle, Colorado,...  

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

6: Ground Water Compliance at the New Rifle, Colorado, UMTRA Project Site, Rifle, Colorado EA-1406: Ground Water Compliance at the New Rifle, Colorado, UMTRA Project Site, Rifle,...

386

Ground Gravity Survey At Mcgee Mountain Area (DOE GTP) | Open...  

Open Energy Info (EERE)

Ground Gravity Survey At Mcgee Mountain Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Mcgee Mountain...

387

Water Quality Surface and Ground | Open Energy Information  

Open Energy Info (EERE)

Quality Surface and Ground Jump to: navigation, search Retrieved from "http:en.openei.orgwindex.php?titleWaterQualitySurfaceandGround&oldid612197...

388

GROUND PLANE INSULATION FAILURE IN THE FIRST TPC SUPERCONDUCTING COIL  

E-Print Network (OSTI)

is WIUUTEO GROUND PLANE INSULATION FAILURE IN THE FIRST TPCOn August 27, 1980, an insulation failure occurred dt-ringby a failure uf ground plane insulation. ACKNOWLEDGMENTS The

Green, M.A.

2010-01-01T23:59:59.000Z

389

Vertical Distribution of Contamination in Ground Water at the...  

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

Vertical Distribution of Contamination in Ground Water at the Tuba City, Arizona, Site Vertical Distribution of Contamination in Ground Water at the Tuba City, Arizona, Site...

390

Optical absorption measurement system  

DOE Patents (OSTI)

The system of the present invention contemplates a non-intrusive method for measuring the temperature rise of optical elements under high laser power optical loading to determine the absorption coefficient. The method comprises irradiating the optical element with a high average power laser beam, viewing the optical element with an infrared camera to determine the temperature across the optical element and calculating the absorption of the optical element from the temperature.

Draggoo, V.G.; Morton, R.G.; Sawicki, R.H.; Bissinger, H.D.

1986-09-17T23:59:59.000Z

391

Optical absorption measurement system  

DOE Patents (OSTI)

The system of the present invention contemplates a non-intrusive method for measuring the temperature rise of optical elements under high laser power optical loading to determine the absorption coefficient. The method comprises irradiating the optical element with a high average power laser beam, viewing the optical element with an infrared camera to determine the temperature across the optical element and calculating the absorption of the optical element from the temperature.

Draggoo, Vaughn G. (Livermore, CA); Morton, Richard G. (San Diego, CA); Sawicki, Richard H. (Pleasanton, CA); Bissinger, Horst D. (Livermore, CA)

1989-01-01T23:59:59.000Z

392

Energy Landscapes: Coal Canals, Oil Pipelines, Electricity Transmission Wires in the Mid-Atlantic, 1820-1930.  

E-Print Network (OSTI)

??Coal canals, oil pipelines, and electricity transmission wires transformed the built environment of the American mid-Atlantic region between 1820 and 1930. By transporting coal, oil, (more)

Jones, Christopher F.

2009-01-01T23:59:59.000Z

393

Design of a Probe for Strain Sensitivity Studies of Critical Current Densities in SC Wires and Tapes  

SciTech Connect

The design of a variable-temperature probe used to perform strain sensitivity measurements on LTS wires and HTS wires and tapes is described. The measurements are intended to be performed at liquid helium temperatures (4.2 K). The wire or tape to be measured is wound and soldered on to a helical spring device, which is fixed at one end and subjected to a torque at the free end. The design goal is to be able to achieve {+-} 0.8 % strain in the wire and tape. The probe is designed to carry a current of 2000A.

Dhanaraj, N.; Barzi, E.; Turrioni, D.; Rusy, A.; Lombardo, V.; /Fermilab

2011-07-01T23:59:59.000Z

394

Wire inhomogeneity detector having a core with opposing pole pieces and guide pieces adjacent the opposing pole pieces  

DOE Patents (OSTI)

A device for uncovering imperfections in electrical conducting wire, particularly superconducting wire, by detecting variations in eddy currents. Eddy currents effect the magnetic field in a gap of an inductor, contained in a modified commercial ferrite core, through which the wire being tested is passed. A small increase or decrease in the amount of conductive material, such as copper, in a fixed cross section of wire will unbalance a bridge used to measure the impedance of the inductor, tripping a detector and sounding an alarm.

Gibson, George H. (Lafayette, CA); Smits, Robert G. (Lafayette, CA); Eberhard, Philippe H. (El Cerrito, CA)

1989-01-01T23:59:59.000Z

395

Second coordinate readout in drift chambers by timing of the electromagnetic wave propagating along the anode wire  

Science Conference Proceedings (OSTI)

The feasibility of using an anode wire and surrounding electrodes in drift chambers as a transmission line for second coordinate readout has been studied. The method is based on propagation of the electromagnetic wave along the anode wire is determined by measurement, in an optimized electronic readout system, of the time difference between the arrivals of the signal to the ends of the wire. The resolution obtained on long wires (approx. 2 meters) is about 2 cm FWHM for minimum ionizing particles at a gas gain of approx. = 10/sup 5/.

Boie, R.A.; Radeka, V.; Rehak, P.; Xi, D.M.

1980-11-01T23:59:59.000Z

396

Simultaneous measurement of the thermal conductivity and thermal diffusivity of unconsolidated materials by the transient hot wire method  

Science Conference Proceedings (OSTI)

This paper describes a new design for the transient hot wire method that can obtain the thermal conductivity and thermal diffusivity of unconsolidated materials. In this method

Greg C. Glatzmaier; W. Fred Ramirez

1985-01-01T23:59:59.000Z

397

Energy Efficiency Assessment Case Study: Drawing a Bead on Energy Savings and Power Quality at a Wire Manufacturer  

Science Conference Proceedings (OSTI)

An energy and power quality assessment was conducted at a manufacturer of wire stock. After defining the energy usage and power quality concerns, the audit team identified ...

2012-08-28T23:59:59.000Z

398

Characterizing the energy distribution of laser-generated relativistic electrons in cone-wire targets  

Science Conference Proceedings (OSTI)

Transport of relativistic electrons in a solid Cu wire target has been modeled with the implicit hybrid particle-in-cell code LSP to investigate the electron energy distribution and energy coupling from the high-intensity, short-pulse laser to electrons entering to the wire. Experiments were performed on the TITAN laser using a 1.5 mm long Cu wire attached to a Au cone tip at the laser intensity of 1 Multiplication-Sign 10{sup 20} W/cm{sup 2} which was irradiated into the cone. The simulated Cu K{alpha} wire profile and yields matched the measurements using a two-temperature energy distribution. These modeling results show that the cold component of the energy spectrum can be determined with {+-}100 keV accuracy from the fit to the initial experimental fall-off of the K{alpha} emission while the simulated profiles were relatively insensitive to the hotter component of the electron distribution (>4 MeV). The slope of measured escaped electrons was used to determine the hotter temperature. Using exponential energy distributions, the laser-to-electron-in-wire coupling efficiencies inferred from the fits decreased from 3.4% to 1.5% as the prepulse energy increases up to 1 J. The comparison of the energy couplings using the exponential and Relativistic Maxwellian distribution functions showed that the energy inferred in the cold component is independent of the type of the distribution function.

Sawada, H.; Beg, F. N. [Center for Energy Research, University of California San Diego, La Jolla, California 92093 (United States); Higginson, D. P.; Ma, T. [Center for Energy Research, University of California San Diego, La Jolla, California 92093 (United States); Lawrence Livermore National Laboratory, Livermore, California 94551 (United States); Link, A.; Wilks, S. C.; McLean, H. S.; Perez, F.; Patel, P. K. [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)

2012-10-15T23:59:59.000Z

399

Annual Coded-Wire Tag Program : Washington : Missing Production Groups Annual Report for 2000.  

DOE Green Energy (OSTI)

The Bonneville Power Administration (BPA) funds the 'Annual Coded-wire Tag Program - Missing Production Groups for Columbia River Hatcheries' project. The Washington Department of Fish and Wildlife (WDFW), Oregon Department of Fish and Wildlife (ODFW) and the United States Fish and Wildlife Service (USFWS) all operate salmon and steelhead rearing programs in the Columbia River basin. The intent of the funding is to coded-wire tag at least one production group of each species at each Columbia Basin hatchery to provide a holistic assessment of survival and catch distribution over time and to meet various measures of the Northwest Power Planning Council's (NWPPC) Fish and Wildlife Program. The WDFW project has three main objectives: (1) coded-wire tag at least one production group of each species at each Columbia Basin hatchery to enable evaluation of survival and catch distribution over time, (2) recover coded-wire tags from the snouts of fish tagged under objective 1 and estimate survival, contribution, and stray rates for each group, and (3) report the findings under objective 2 for all broods of chinook, and coho released from WDFW Columbia Basin hatcheries. Objective 1 for FY-00 was met with few modifications to the original FY-00 proposal. Under Objective 2, snouts containing coded-wire tags that were recovered during FY-00 were decoded. Under Objective 3, this report summarizes available recovery information through 2000 and includes detailed information for brood years 1989 to 1994 for chinook and 1995 to 1997 for coho.

Mills, Robin D.

2002-02-01T23:59:59.000Z

400

Wide-Gap Thin Film Si n-i-p Solar Cells Deposited by Hot-Wire CVD: Preprint  

DOE Green Energy (OSTI)

High-voltage wide bandgap thin-film Si n-i-p solar cells have been made using the hot-wire chemical vapor deposition (HWCVD) technique. The best open-circuit voltage (Voc) has exceeded 0.94 V in solar cells using HWCVD in the entire n-i-p structure. A Voc of 0.97V has been achieved using HWCVD in the n and i layers and plasma-enhanced (PE) CVD for the p layer. The high voltages are attributed to the wide-gap i layer and an improved p/i interface. The wide-gap i layer is obtained by using low substrate temperatures and sufficient hydrogen dilution during the growth of the i layer to arrive at the amorphous-to-microcrystalline phase transition region. The optical band gap (E04) of the i layer is found to be 1.90 eV. These high-voltage cells also exhibit good fill factors exceeding 0.7 with short-circuit-current densities of 8 to 10 mA/cm2 on bare stainless steel substrates. We have also carried out photoluminescence (PL) spectroscopy studies and found a correlation between Voc and the PL peak energy position.

Wang, Q.; Iwaniczko, E.; Yang, J.; Lord, K.; Guha, S.; Wang, K.; Han, D.

2002-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "optical ground wire" 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

Fiber optic monitoring device  

DOE Patents (OSTI)

A device for the purpose of monitoring light transmissions in optical fibers comprises a fiber optic tap that optically diverts a fraction of a transmitted optical signal without disrupting the integrity of the signal. The diverted signal is carried, preferably by the fiber optic tap, to a lens or lens system that disperses the light over a solid angle that facilitates viewing. The dispersed light indicates whether or not the monitored optical fiber or system of optical fibers is currently transmitting optical information. 4 figures.

Samborsky, J.K.

1993-10-05T23:59:59.000Z

402

Fiber optic monitoring device  

DOE Patents (OSTI)

This invention is comprised of a device for the purpose of monitoring light transmissions in optical fibers comprises a fiber optic tap that optically diverts a fraction of a transmitted optical signal without disrupting the integrity of the signal. The diverted signal is carried, preferably by the fiber optic tap, to a lens or lens system that disperses the light over a solid angle that facilitates viewing. The dispersed light indicates whether or not the monitored optical fiber or system of optical fibers is currently transmitting optical information.

Samborsky, J.K.

1992-12-31T23:59:59.000Z

403

Optical NAND gate  

DOE Patents (OSTI)

An optical NAND gate is formed from two pair of optical waveguide devices on a substrate, with each pair of the optical waveguide devices consisting of an electroabsorption modulator and a photodetector. One pair of the optical waveguide devices is electrically connected in parallel to operate as an optical AND gate; and the other pair of the optical waveguide devices is connected in series to operate as an optical NOT gate (i.e. an optical inverter). The optical NAND gate utilizes two digital optical inputs and a continuous light input to provide a NAND function output. The optical NAND gate can be formed from III-V compound semiconductor layers which are epitaxially deposited on a III-V compound semiconductor substrate, and operates at a wavelength in the range of 0.8-2.0 .mu.m.

Skogen, Erik J. (Albuquerque, NM); Raring, James (Goleta, CA); Tauke-Pedretti, Anna (Albuquerque, NM)

2011-08-09T23:59:59.000Z

404

Optical extensometer  

DOE Patents (OSTI)

An optical extensometer is described using sequentially pulsed light beams for measuring the dimensions of objects by detecting two opposite edges of the object without contacting the object. The light beams may be of different distinguishable light characteristics, such as polarization or wave length, and are time modulated in an alternating manner at a reference frequency. The light characteristics are of substantially the same total light energy and are distributed symmetrically. In the preferred embodiment two light beam segments of one characteristic are on opposite sides of a middle segment of another characteristic. As a result, when the beam segments are scanned sequentially across two opposite edges of the object, they produce a readout signal at the output of a photoelectric detector that is compared with the reference signal by a phase comparator to produce a measurement signal with a binary level transition when the light beams cross an edge. The light beams may be of different cross sectional geometries, including two superimposed and concentric circular beam cross sections of different diameter, or two rectangular cross sections which intersect with each other substantially perpendicular so only their central portions are superimposed. Alternately, a row of three light beams can be used including two outer beams on opposite sides and separate from a middle beam. The three beams may all be of the same light characteristic. However it is preferable that the middle beam be of a different characteristic but of the same total energy as the two outer beams.

Walker, Ray A. (Kennewick, WA); Reich, Fred R. (Richland, WA); Russell, James T. (Richland, WA)

1978-01-01T23:59:59.000Z

405

Annual Coded Wire Tag Program; Oregon Stock Assessment, 2001 Annual Report.  

DOE Green Energy (OSTI)

This annual report is in fulfillment of contract obligations with Bonneville Power Administration which is the funding source for the Oregon Department of Fish and Wildlife project 'Annual Stock Assessment - Coded Wire Tag Program (ODFW)'. Results for the 2001 contract period: Objective 1--Over 1 million juvenile salmon were coded-wire by this program (Table 1); Objective 2--ODFW recovered and processed over 40,000 snout collected from coded-wire tagged fish (Table 2); Objective 3--Survival data is summarized below; Objective 4--The last group of VIE tagged coho was released in 2001 and returning coho were samples at Sandy Hatchery. This sampling showed only 1 of 1,160 returning coho VIE marked as juveniles retained the VIE mark as adults.

Lewis, Mark; Mallette, Christine; Murray, William

2002-03-01T23:59:59.000Z

406

EAC Recommendations for DOE Action on Non-Wires Solutions - October 17, 2012  

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

October 17, 2012 October 17, 2012 RE: Recommendations on Non-Wires Solutions _________________________________________________________________________ Introduction & Overview "Non-Wires Solutions" (NWS), sometimes referred to as Non-Wires Alternatives (NWA), is the umbrella term for ensuring that a portfolio of alternatives to transmission lines is analyzed and considered in the planning and possible permitting of such facilities. This NWS approach would apply to the proposed upgrade or construction of a distribution or transmission line. In essence, NWS is designed to identify the optimal approach to distribution and transmission enhancement, just as integrated resource planning practices are applied to analyzing the need for power generation projects. Thus, it is relevant for DOE to assist in stakeholder

407

Distributed Power Flow Control: Distributed Power Flow Control using Smart Wires for Energy Routing  

Science Conference Proceedings (OSTI)

GENI Project: Smart Wire Grid is developing a solution for controlling power flow within the electric grid to better manage unused and overall transmission capacity. The 300,000 miles of high-voltage transmission line in the U.S. today are congested and inefficient, with only around 50% of all transmission capacity utilized at any given time. Increased consumer demand should be met in part with more efficient and an economical power flow. Smart Wire Grids devices clamp onto existing transmission lines and control the flow of power withinmuch like how internet routers help allocate bandwidth throughout the web. Smart wires could support greater use of renewable energy by providing more consistent control over how that energy is routed within the grid on a real-time basis. This would lessen the concerns surrounding the grids inability to effectively store intermittent energy from renewables for later use.

None

2012-04-24T23:59:59.000Z

408

Appendix B Ground Water Management Policy  

Office of Legacy Management (LM)

Ground Water Management Policy Ground Water Management Policy for the Monticello Mill Tailings Site and Adjacent Areas This page intentionally left blank Docun~ent Number Q0029500 Appendix B State of Utah DEPARTblENT OF NATURAL RESOURCES DIVISION OF WATER RIGHTS Ground-Water Management Policy for the Mot~ticello Mill Tailings Site and Adjacent Areas The Monticello Mill Tailings Site is on the southeast portion of the tovm of Monticello in Sectton 36, T33S, K23E and Section 31, i33S. R24E, SLB&M. The mill site was used from 1942 to 1960 in the processing of uranium and vanadium. The U.S. Department of Energy (DOE) is currently cleaning up the site. The site is in the small canyon that forms the drainage for South Creek. The general direction of water flow, of both surface streams and the shallow

409

Definition: Ground Gravity Survey | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Ground Gravity Survey Jump to: navigation, search Dictionary.png Ground Gravity Survey The ground gravitational method is the study of the distribution of mass in the subsurface with the observation point at the earth's surface.[1] View on Wikipedia Wikipedia Definition A gravity anomaly is the difference between the observed acceleration of a planet's gravity and a value predicted from a model. A location with a positive anomaly exhibits more gravity than predicted, while a negative anomaly exhibits a lower value than predicted. References ↑ http://www.amazon.com/Geophysical-Field-Theory-Three-Volume-Gravitational/dp/0124020410 Ret Like Like You like this.Sign Up to see what your friends like.

410

GroundedPower Inc | Open Energy Information  

Open Energy Info (EERE)

GroundedPower Inc GroundedPower Inc Jump to: navigation, search Name GroundedPower Inc Place Gloucester, Massachusetts Zip 1930 Product Massachusetts-based company developing home and building energy management systems via IP-based software. Coordinates 37.413962°, -76.526305° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.413962,"lon":-76.526305,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

411

Ground Gravity Survey | Open Energy Information  

Open Energy Info (EERE)

Ground Gravity Survey Ground Gravity Survey Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Ground Gravity Survey Details Activities (48) Areas (34) Regions (2) NEPA(2) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Gravity Techniques Parent Exploration Technique: Gravity Techniques Information Provided by Technique Lithology: Distribution of density in the subsurface enables inference of rock type. Stratigraphic/Structural: Delineation of steeply dipping formations, geological discontinuities and faults, intrusions and large-scale deposition of silicates due to hydrothermal activity. Hydrological: Density of sedimentary rocks are strongly influenced by fluid contained within pore space. Dry bulk density refers to the rock with no moisture, while the wet bulk density accounts for water saturation; fluid content may alter density by up to 30%.(Sharma, 1997)

412

Critical Evaluation of the ISCCP Simulator Using Ground-Based Remote Sensing Data  

Science Conference Proceedings (OSTI)

Given the known shortcomings in representing clouds in Global Climate Models (GCM) comparisons with observations are critical. The International Satellite Cloud Climatology Project (ISCCP) diagnostic products provide global descriptions of cloud top pressure and column optical depth that extends over multiple decades. The necessary limitations of the ISCCP retrieval algorithm require that before comparisons can be made between model output and ISCCP results the model output must be modified to simulate what ISCCP would diagnose under the simulated circumstances. We evaluate one component of the so-called ISCCP simulator in this study by comparing ISCCP and a similar algorithm with various long-term statistics derived from the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) Climate Research Facility ground-based remote sensors. We find that were a model to simulate the cloud radiative profile with the same accuracy as can be derived from the ARM data, then the likelihood of that occurrence being placed in the same cloud top pressure and optical depth bin as ISCCP of the 9 bins that have become standard ranges from 30% to 70% depending on optical depth. While the ISCCP simulator improved the agreement of cloud-top pressure between ground-based remote sensors and satellite observations, we find minor discrepancies due to the parameterization of cloud top pressure in the ISCCP simulator. The primary source of error seems to be related to discrepancies in visible optical depth that are not accounted for in the ISCCP simulator. We show that the optical depth discrepancies are largest when the assumptions necessary for plane parallel radiative transfer optical depths retrievals are violated.

Mace, G G; Houser, S; Benson, S; Klein, S A; Min, Q

2009-11-02T23:59:59.000Z

413

Water budget for SRP burial ground area  

SciTech Connect

Radionuclide migration from the SRP burial ground for solid low-level waste has been studied extensively. Most of the buried radionuclides are fixed on the soil and show negligible movement. The major exception is tritium, which when leached from the waste by percolating rainfall, forms tritiated water and moves with the groundwater. The presence of tritium has been useful in tracing groundwater flow paths to outcrop. A subsurface tritium plume moving from the southwest corner of the burial ground toward an outcrop near Four Mile Creek has been defined. Groundwater movement is so slow that much of the tritium decays before reaching the outcrop. The burial ground tritium plume defined to date is virtually all in the uppermost sediment layer, the Barnwell Formation. The purpose of the study reported in this memorandum was to investigate the hypothesis that deeper flow paths, capable of carrying substantial amounts of tritium, may exist in the vicinity of the burial ground. As a first step in seeking deeper flow paths, a water budget was constructed for the burial ground site. The water budget, a materials balance used by hydrologists, is expressed in annual area inches of rainfall. Components of the water budget for the burial ground area were analyzed to determine whether significant flow paths may exist below the tan clay. Mean annual precipitation was estimated as 47 inches, with evapotranspiration, run-off, and groundwater recharge estimated as 30, 2, and 15 inches, respectively. These estimates, when combined with groundwater discharge data, suggest that 5 inches of the groundwater recharge flow above the tan clay and that 10 inches flow below the tan clay. Therefore, two-thirds of the groundwater recharge appears to follow flow paths that are deeper than those previously found. 13 references, 10 figures, 5 tables.

Hubbard, J.E.; Emslie, R.H.

1984-03-19T23:59:59.000Z

414

Optimization studies on thermal and mechanical manufacturing processes for multifilament superconducting tape and wire  

E-Print Network (OSTI)

There are many parameters that significantly affect the electrical performance of ceramic-core superconducting composite wire and tapes, which remain ambiguous and require more labor on their optimization. BSCCO 2212 has not been paid the attention and investment it deserves. In this regard, all optimization efforts were made for BSCCO 2223. In our work, a practical and inexpensive manufacturing method, thermally and mechanically optimized for Pb doped BiSrCaCuO 2212 superconducting multifilament (38 filaments) wires and tapes, was successfully employed. Optimized parameters can be classified under material, mechanical (deformation) and heat treatment (thermal) subgroups. Parameters involved with materials included investigation of deformation behavior of two different sheath metals; pure silver and 0.02% magnesia dispersion reinforced silver alloy. Pb doped BiSrCaCuO 2212 ceramic superconductor powder, the other source of material related parameters, was synthesized following the "Thermal Co-decomposition or Wet Mix" method. Fabrication of mono and multifilament wires with Oxide Powder in Tube (OPIT) method followed next. Optimization of drawing deformation was practiced to achieve the best ceramic grain alignment and smoother ceramic powder core/metal sheath interface in order to avoid "sausaging" in wires. Rolling of the wire products into tapes by following different deformation regimes was the other manufacturing stage of the project. Variable and constant reduction-per-pass deformation paths were employed to reveal their effects on our composites with distinct sheath material and filament formation. The search for the best (optimum) heat treatment schedule for our Bi2212 superconductor composites, a modified version of "step solidification partial melting", was employed successfully. A solution through tried recipes for the bubbling problem that occurred with our tapes was also addressed. Electrical performance tests of fully reacted wires were carried out in our laboratory and very promising results were attained.

Basaran, Burak

2003-08-01T23:59:59.000Z

415

Ground-Based Microwave Radiometer Measurements  

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

Ground-Based Microwave Radiometer Measurements Ground-Based Microwave Radiometer Measurements and Radiosonde Comparisons During the WVIOP2000 Field Experiment D. Cimini University of L'Aquila L'Aquil, Italy E. R. Westwater Cooperative Institute for Research in the Environmental Sciences University of Colorado National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado Y. Han Science System Applications National Aeronautics Space Administration Goddard Space Flight Center Greenbelt, Maryland S. Keihm Jet Propulsion Laboratory California Institute of Technology Pasadena, California Introduction During September to October 2000, a water vapor intensive operational period (WVIOP) was conducted at the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains (SGP) Cloud and

416

Observations of Transport Variability in the Baltic Sea by Parasitic Use of a Fiber-Optic Cable  

Science Conference Proceedings (OSTI)

Transports between the Swedish mainland and the island of Gotland were studied by means of motionally induced voltages. The copper mantle of an existent fiber-optic telecommunications cable was grounded on Gotland, and the data acquisition system ...

Peter Sigray; Peter Lundberg; Kristofer Ds

2004-07-01T23:59:59.000Z

417

Observations of Saharan Aerosols: Results of ECLATS Field Experiment. Part I: Optical Thicknesses and Aerosol Size Distributions  

Science Conference Proceedings (OSTI)

A series of ground-based and airborne observations of desert aerosols, the ECLATS experiment was carried out in December 1980 in the vicinity of Niamey (Niger). This paper deals with aerosol optical thicknesses and size distributions derived from ...

Y. Fouquart; B. Bonnel; M. Chaoui Roquai; R. Santer; A. Cerf

1987-01-01T23:59:59.000Z

418

Isotropically sensitive optical filter employing atomic resonance transitions  

DOE Patents (OSTI)

An ultra-high Q isotropically sensitive optical filter or optical detector employing atomic resonance transitions. More specifically, atomic resonance transitions utilized in conjunction with two optical bandpass filters provide an optical detector having a wide field of view (.about.2.pi. steradians) and very narrow acceptance bandwidth approaching 0.01 A. A light signal to be detected is transmitted through an outer bandpass filter into a resonantly absorbing atomic vapor, the excited atomic vapor then providing a fluorescence signal at a different wavelength which is transmitted through an inner bandpass filter. The outer and inner bandpass filters have no common transmission band, thereby resulting in complete blockage of all optical signals that are not resonantly shifted in wavelength by the intervening atomic vapor. Two embodiments are disclosed, one in which the light signal raises atoms contained in the atomic vapor from the ground state to an excited state from which fluorescence occurs, and the other in which a pump laser is used to raise the atoms in the ground state to a first excited state from which the light signal then is resonantly absorbed, thereby raising the atoms to a second excited state from which fluorescence occurs. A specific application is described in which an optical detector according to the present invention can be used as an underwater detector for light from an optical transmitter which could be located in an orbiting satellite.

Marling, John B. (Livermore, CA)

1981-01-01T23:59:59.000Z

419

High strength, low carbon, dual phase steel rods and wires and process for making same  

DOE Patents (OSTI)

A high strength, high ductility, low carbon, dual phase steel wire, bar or rod and process for making the same is provided. The steel wire, bar or rod is produced by cold drawing to the desired diameter in a single multipass operation a low carbon steel composition characterized by a duplex microstructure consisting essentially of a strong second phase dispersed in a soft ferrite matrix with a microstructure and morphology having sufficient cold formability to allow reductions in cross-sectional area of up to about 99.9%. Tensile strengths of at least 120 ksi to over 400 ksi may be obtained.

Thomas, Gareth (Berkeley, CA); Nakagawa, Alvin H. (Campbell, CA)

1986-01-01T23:59:59.000Z

420

Subsurface Characterization at Ground Failure Sites in Adapazari, Turkey  

E-Print Network (OSTI)

ground failure. Lastly, ?ve CPTs and three borings were com- pleted at the Adapazari Electrical Substation,

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "optical ground wire" 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

Issues in Ground-Truthing Graphic Documents  

Science Conference Proceedings (OSTI)

We examine the nature of ground-truth: whether it is always well-defined fora given task, oron ly relative and approximate. In the conventional scenario, reference data is produced by recording the interpretation of each test document using a chosen ...

Daniel P. Lopresti; George Nagy

2001-09-01T23:59:59.000Z

422

Ground water work breakdown structure dictionary  

SciTech Connect

This report contains the activities that are necessary to assess in ground water remediation as specified in the UMTRA Project. These activities include the following: site characterization; remedial action compliance and design documentation; environment, health, and safety program; technology assessment; property access and acquisition activities; site remedial actions; long term surveillance and licensing; and technical and management support.

NONE

1995-04-01T23:59:59.000Z

423

Selenium in Oklahoma ground water and soil  

SciTech Connect

Selenium with a consumption of 2 liters per day (5). The objectives of this study are: (1) to determine the concentrations of Se in Oklahoma ground water and soil samples. (2) to map the geographical distribution of Se species in Oklahoma. (3) to relate groundwater depth, pH and geology with concentration of Se.

Atalay, A.; Vir Maggon, D.

1991-03-30T23:59:59.000Z

424

Ground Vibration Measurements at LHC Point 4  

Science Conference Proceedings (OSTI)

Ground vibration was measured at Large Hadron Collider (LHC) Point 4 during the winter shutdown in February 2012. This report contains the results, including power and coherence spectra. We plan to collect and analyze vibration data from representative collider halls to inform specifications for future linear colliders, such as ILC and CLIC. We are especially interested in vibration correlations between final focus lens locations.

Bertsche, Kirk; /SLAC; Gaddi, Andrea; /CERN

2012-09-17T23:59:59.000Z

425

Grounding geographic categories in the meaningful environment  

Science Conference Proceedings (OSTI)

Ontologies are a common approach to improve semantic interoperability by explicitly specifying the vocabulary used by a particular information community. Complex expressions are defined in terms of primitive ones. This shifts the problem of semantic ... Keywords: meaningful environment, semantic datum, semantic heterogeneity, symbol grounding problem

Simon Scheider; Krzysztof Janowicz; Werner Kuhn

2009-09-01T23:59:59.000Z

426

Estimation of Global Ground Heat Flux  

Science Conference Proceedings (OSTI)

This study investigates the use of a previously published algorithm for estimating ground heat flux (GHF) at the global scale. The method is based on an analytical solution of the diffusion equation for heat transfer in a soil layer and has been ...

William B. Bennett; Jingfeng Wang; Rafael L. Bras

2008-08-01T23:59:59.000Z

427

Impedance of surface footings on layered ground  

Science Conference Proceedings (OSTI)

Traditionally only the static bearing capacity and stiffness of the ground is considered in the design of wind turbine foundations. However, modern wind turbines are flexible structures with resonance frequencies as low as 0.2Hz. Unfortunately, environmental ... Keywords: Boundary elements, Domain-transformation method, Dynamic stiffness, Footing, Foundation, Layered soil, Wind turbine

L. Andersen; J. Clausen

2008-01-01T23:59:59.000Z

428

PHYSICAL REVIEW A 84, 022343 (2011) Coherence of a qubit stored in Zeeman levels of a single optically trapped atom  

E-Print Network (OSTI)

experimentally investigate the coherence properties of a qubit stored in the Zeeman substates of the 52 S1/2, F = 1 hyperfine ground level of a single optically trapped 87 Rb atom. Larmor precession of a single and the quantum repeater [1]. There, ground states of trapped atoms or ions are ideal candidates

Weinfurter, Harald

429

April 1, 1993 / Vol. 18, No. 7 / OPTICS LETTERS 531 Rotation properties of multipole moments in atomic  

E-Print Network (OSTI)

substates. In the examples considered here, these substates belong to the electronic ground state and have polarized light. We demonstrate the procedure in the ground state of atomic sodium, using optical pumping to polarize the angular momentum substates. We showhow the resulting information can be used to distinguish

Suter, Dieter

430

McCullough to Liberty fiber optics project  

SciTech Connect

The US Department of Energy, Western Area Power Administration (Western) proposes to replace an existing overhead static wire with a shield wire that contains optical fibers (OPGW) on transmission lines from McCullough Substation, south of Las Vegas, Nevada, to Liberty Substation near Phoenix, Arizona. The replacement will occur on the McCullough-Davis, Davis-Parker No. 2, and Parker-Liberty No. 1 230-kV transmission lines. Western is responsible for the operation and maintenance of the lines. Western prepared an Environmental Assessment (EA) entitled ``McCullough to Liberty Fiber Optics Project`` (DOE/EA-1202). The EA contains the analysis of the proposed construction, operation, and maintenance of the OPGW. Based on the analysis in the EA, Western 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 (NEPA) of 1969. The preparation of an environmental impact statement (EIS) is not required, and therefore, Western is issuing this Findings of No Significant Impact (FONSI).

NONE

1997-05-01T23:59:59.000Z

431

Multi Optical Transition Radiation System for ATF2  

SciTech Connect

In this paper we describe the design, installation and first calibration tests of a Multi Optical Transition Radiation System in the beam diagnostic section of the Extraction (EXT) line of ATF2, close to the multi wire scanner system. This system will be a valuable tool for measuring beam sizes and emittances coming from the ATF Damping Ring. With an optical resolution of about 2 {micro}m an original OTR design (OTR1X) located after the septum at the entrance of the EXT line demonstrated the ability to measure a 5.5 {micro}m beam size in one beam pulse and to take many fast measurements. This gives the OTR the ability to measure the beam emittance with high statistics, giving a low error and a good understanding of emittance jitter. Furthermore the nearby wire scanners will be a definitive test of the OTR as a beam emittance diagnostic device. The multi-OTR system design proposed here is based on the existing OTR1X.

Alabau-Gonzalvo, Javier; /Valencia U., IFIC; Blanch Gutierrez, Cesar; /Valencia U., IFIC; Civera, Jose Vicente; /Valencia U., IFIC; Faus-Golfe, Angeles; /Valencia U., IFIC; Garcia-Garrigos, Juan; /Valencia U., IFIC; Cruz, Juan; /SLAC; McCormick, Douglas; /SLAC; White, Glen; /SLAC

2012-07-13T23:59:59.000Z

432

Comparison of the CALIPSO satellite and ground-based observations of cirrus clouds at the ARM TWP sites  

SciTech Connect

Statistics of ice cloud macrophysical and optical properties from the Cloud-Aerosol LIdar with Orthogonal Polarization (CALIOP) instrument on board the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite are compared with those from ground-based lidar observations over a 31 month period. Ground-based lidar observations are taken from the micropulse lidars (MPL) at the three Department of Energy Atmospheric Radiation Measurement (ARM) tropical western pacific (TWP) sites: Manus, Nauru and Darwin. CALIPSO observations show a larger cloud fraction at high altitudes while the ground-based MPLs show a larger cloud fraction at low altitudes. The difference in mean ice cloud top and base heights at the Manus and Nauru sites are all within 0.51 km, although differences are statistically significant. Mean ice cloud geometrical thickness agree to within 0.05 km at the Manus and Nauru sites. Larger differences exist at Darwin due to excessive degradation of the MPL output power during our sampling period. Both sets of observations show thicker clouds during the nighttime which may be real but could also be partially an artifact of the decreased signal-to-noise ratio during the daytime. The number of ice cloud layers per profile are also shown to be consistent after accounting for the difference in spatial resolution. For cloud optical depths, four different retrieval methods are compared, two for each set of observations. All products show that the majority of ice cloud optical depths ({approx}60%) fall below an optical depth of 0.2. For most comparisons all four retrievals agree to within the uncertainty intervals. We find that both CALIPSO retrievals agree best to ground-based optical depths when the lidar ratio in the latter is retrieved instead of set to a fixed value. Also thoroughly compared is the cloud properties for the subset of ice clouds which reside in the tropical tropopause layer (TTL).

Thorsen, Tyler J.; Fu, Q.; Comstock, Jennifer M.

2011-11-10T23:59:59.000Z

433

The Design and Performance of SpaceWire Router-network using CSP  

E-Print Network (OSTI)

The Design and Performance of SpaceWire Router-network using CSP Session:Components Short Paper the point of view of robustness and security using CSP (Communication Sequential Processes) method, one Correspondong author:fukunaga@tmu.ac.jp 1 Occam has been originally developed by Inmos Limited inspired by CSP[3

Fukunaga, Chikara

434

Enhancement of the E(J,B) power law characterization for superconducting wires from  

E-Print Network (OSTI)

, in particular the variation law of the electric field E as a function of the current density J and of the flux the voltage-current characteristic of the solenoid for different exterior applied flux density. A computer]: the voltage Vtr is recorded for different currents Itr by a 4 wires measurement and for several external flux

435

Nuclear reactor fuel structure containing uranium alloy wires embedded in a metallic matrix plate  

DOE Patents (OSTI)

A flat or curved plate structure, to be used as fuel in a nuclear reactor, comprises elongated fissionable wires or strips embedded in a metallic continuous non-fissionable matrix plate. The wires or strips are made predominantly of a malleable uranium alloy, such as uranium silicide, uranium gallide or uranium germanide. The matrix plate is made predominantly of aluminum or an aluminum alloy. The wires or strips are located in a single row at the midsurface of the plate, parallel with one another and with the length dimension of the plate. The wires or strips are separated from each other, and from the surface of the plate, by sufficient thicknesses of matrix material, to provide structural integrity and effective fission product retention, under neutron irradiation. This construction makes it safely feasible to provide a high uranium density, so that the uranium enrichment with uranium 235 may be reduced below about 20%, to deter the reprocessing of the uranium for use in nuclear weapons.

Travelli, Armando (Hinsdale, IL)

1988-01-01T23:59:59.000Z

436

Nuclear reactor fuel structure containing uranium alloy wires embedded in a metallic matrix plate  

DOE Patents (OSTI)

A flat or curved plate structure, to be used as fuel in a nuclear reactor, comprises elongated fissionable wires or strips embedded in a metallic continuous non-fissionable matrix plate. The wires or strips are made predominantly of a malleable uranium alloy, such as uranium silicide, uranium gallide or uranium germanide. The matrix plate is made predominantly of aluminum or an aluminum alloy. The wires or strips are located in a single row at the midsurface of the plate, parallel with one another and with the length dimension of the plate. The wires or strips are separated from each other, and from the surface of the plate, by sufficient thicknesses of matrix material, to provide structural integrity and effective fission product retention, under neutron irradiation. This construction makes it safely feasible to provide a high uranium density, so that the uranium enrichment with uranium 235 may be reduced below about 20%, to deter the reprocessing of the uranium for use in nuclear weapons.

Travelli, A.

1985-10-25T23:59:59.000Z

437

Nano-wires with surface disorder: Giant localization lengths and quantum-to-classical crossover  

E-Print Network (OSTI)

We investigate electronic quantum transport through nano-wires with one-sided surface roughness. A magnetic field perpendicular to the scattering region is shown to lead to exponentially diverging localization lengths in the quantum-to-classical crossover regime. This effect can be quantitatively accounted for by tunneling between the regular and the chaotic components of the underlying mixed classical phase space.

J. Feist; A. Bcker; R. Ketzmerick; S. Rotter; B. Huckestein; J. Burgdrfer

2006-06-22T23:59:59.000Z

438

Monitoring Battery System for Electric Vehicle, Based On "One Wire" Technology  

E-Print Network (OSTI)

Monitoring Battery System for Electric Vehicle, Based On "One Wire" Technology Javier Ibáñez Vial Santiago, Chile jdixon@ing.puc.cl Abstract-- A monitoring system for a battery powered electric vehicle (EV of the 24 batteries. Besides, the system will also allow monitoring the energy delivered by a photovoltaic

Rudnick, Hugh

439

Optimal wire sizing and buffer insertion for low power and a generalized delay model  

Science Conference Proceedings (OSTI)

We present efficient, optimal algorithms for timing optimization by discrete wire sizing and buffer insertion. Our algorithms are able to minimize dynamic power dissipation subject to given timing constraints. In addition, we compute the complete power-delay ... Keywords: Timing Optization, Elmore Delay, Dynamic Power Dissipation, Dynamic Programming, Signal Slew

John Lillis; Chung-Kuan Cheng; Ting-Ting Y. Lin

1995-12-01T23:59:59.000Z

440

Pseudospin Ferromagnetism in Double-Quantum-Wire Systems D.-W. Wang,1  

E-Print Network (OSTI)

Pseudospin Ferromagnetism in Double-Quantum-Wire Systems D.-W. Wang,1 E. G. Mishchenko,2 and E (Wiley, New York, 1997), p. 161; J. P. Eisenstein, ibid., p. 37, and references therein. [8] D.-W. Wang); R. Klesse and A. Stern, Phys. Rev. B 62, 16912 (2000). [15] E. Mishchenko, D.-W. Wang, and E. Demler

Demler, Eugene

Note: This page contains sample records for the topic "optical ground wire" 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

Program on Technology Innovation: Vibration Response of Wire Samples Under Applied Tensile Stress  

Science Conference Proceedings (OSTI)

This report summarizes a materials characterization study of vibration damping of metallic materials (in wire form) as a function of applied stress. The materials used in this study were galvanized carbon steel, Alloy 600, 430 stainless steel, 410 stainless steel, and 316 stainless steel.

2009-02-01T23:59:59.000Z

442

Improved Airborne Hot-Wire Measurements of Ice Water Content in Clouds  

Science Conference Proceedings (OSTI)

Airborne measurements of ice water content (IWC) in both ice and mixed phase clouds remain one of the long standing problems in experimental cloud physics. For nearly three decades, IWC has been measured with the help of the Nevzorov hot-wire ...

A. Korolev; J. W. Strapp; G. A. Isaac; E. Emery

443

All-Hot-Wire Chemical Vapor Deposition a-Si:H Solar Cells  

DOE Green Energy (OSTI)

Efficient hydrogenated amorphous silicon (a-Si:H) nip solar cells have been fabricated with all doped and undoped a-Si:H layers deposited by hot-wire chemical vapor deposition (HWCVD). The total deposition time of all layers, except the top ITO-contact, is less than 4 minutes.

Iwaniczko, E.; Wang, Q.; Xu, Y.; Nelson, B. P.; Mahan, A. H.; Crandall, R. S.; Branz, H. M.

2000-01-01T23:59:59.000Z

444

The Nevzorov Airborne Hot-Wire LWCTWC Probe: Principle of Operation and Performance Characteristics  

Science Conference Proceedings (OSTI)

The Nevzorov liquid water content (LWC) and total water content (TWC) probe is a constant-temperature, hot-wire probe designed for aircraft measurements of the ice and liquid water content of clouds. The probe consists of two separate sensors for ...

A. V. Korolev; J. W. Strapp; G. A. Isaac; A. N. Nevzorov

1998-12-01T23:59:59.000Z

445

Final Technical Report: The Water-to-Wire (W2W) Project  

SciTech Connect

The purpose of the Free Flow Power (FFP) Water-to-Wire Project (Project) was to evaluate and optimize the performance, environmental compatibility, and cost factors of FFP hydrokinetic turbines through design analyses and deployments in test flumes and riverine locations.

Lissner, Daniel N.; Edward, Lovelace C.

2013-12-24T23:59:59.000Z

446

A New Ischemic Model Using a Radiofrequency Wire Electrode in a Rabbit Hindlimb  

SciTech Connect

The purpose of this study was to establish an ischemic rabbit hindlimb model using a radiofrequency (RF) wire electrode. We inserted a polytetrafluoroethylene-coated wire with a 2-cm exposed tip into the left superficial femoral artery of seven New Zealand white rabbits and performed RF ablation (RFA) while pulling the wire back. We assessed the clinical findings, angiography, computed tomography perfusion, and permeability surface until 6 weeks after RFA. The angiography demonstrated complete obstruction from the proximal external iliac artery to the distal superficial femoral artery and showed a gradual increment in the angiogenic score, which represents the degree of angiogenesis (r = 0.86, p < 0.0001). The left-to-right ratios of the computed tomography perfusion and permeability surface were significantly reduced after 4 days (p < 0.05), and then they gradually increased with time. We conclude that endovascular RFA using an RF wire electrode is a reproducible and measurable way to create an ischemic rabbit hindlimb model.

Baik, Hye Won, E-mail: hyewonbaik@hanmail.net; Kwak, Byung Kook, E-mail: kwakbk@cau.ac.k [Chung-Ang University College of Medicine, Department of Radiology, Chung-Ang University Hospital (Korea, Republic of); Shim, Hyung Jin [Chung-Ang University College of Medicine, Department of Radiology, Yongsan Hospital (Korea, Republic of); Kim, Yang Soo [Chung-Ang University College of Medicine, Department of Radiology, Chung-Ang University Hospital (Korea, Republic of); Lee, Jong Beom; Kim, Kun Sang [Chung-Ang University College of Medicine, Department of Radiology, Yongsan Hospital (Korea, Republic of)

2008-07-15T23:59:59.000Z

447

Investigation of radial wire arrays for inertial confinement fusion and radiation effects science.  

SciTech Connect

Radial wire arrays provide an alternative x-ray source for Z-pinch driven Inertial Confinement Fusion. These arrays, where wires are positioned radially outwards from a central cathode to a concentric anode, have the potential to drive a more compact ICF hohlraum. A number of experiments were performed on the 7MA Saturn Generator. These experiments studied a number of potential risks in scaling radial wire arrays up from the 1MA level, where they have been shown to provide similar x-ray outputs to larger diameter cylindrical arrays, to the higher current levels required for ICF. Data indicates that at 7MA radial arrays can obtain higher power densities than cylindrical wire arrays, so may be of use for x-ray driven ICF on future facilities. Even at the 7MA level, data using Saturn's short pulse mode indicates that a radial array should be able to drive a compact hohlraum to temperatures {approx}92eV, which may be of interest for opacity experiments. These arrays are also shown to have applications to jet production for laboratory astrophysics. MHD simulations require additional physics to match the observed behavior.

Serrano, Jason Dimitri; Bland, Simon Nicholas (Imperial College, London); McBride, Ryan D.; Chittenden, Jeremy Paul (Imperial College, London); Suzuki-Vidal, Francisco Andres (Imperial College, London); Jennings, Christopher A.; Hall, Gareth Neville (Imperial College, London); Ampleford, David J.; Peyton, Bradley Philip; Lebedev, Sergey V. (Imperial College, London); Cleveland, Monica; Rogers, Thomas John; Cuneo, Michael Edward; Coverdale, Christine Anne; Jones, Brent Manley; Jones, Michael C.

2010-02-01T23:59:59.000Z

448

Welding of NOREM Iron-Base Hardfacing Alloy Wire Products: Procedures for Gas Tungsten Arc Welding  

Science Conference Proceedings (OSTI)

New wire products have been successfully fabricated and procedures developed for automatic gas tungsten arc welding of wear-resistant NOREM iron-base alloys. Research demonstrated that sound multi-layer welds on carbon and stainless steel substrates can be obtained without the use of preheating. These developments point to the advantages of NOREM alloys for field applications, such as valve refurbishing.

1992-09-01T23:59:59.000Z

449

On the Use of Hot-Wire Anemometers for Turbulence Measurements in Clouds  

Science Conference Proceedings (OSTI)

The use of a hot-wire anemometer for high-resolution turbulence measurements in a two-phase flow (e.g., atmospheric clouds) is discussed. Experiments in a small wind tunnel (diameter of 0.2 and 2 m in length) with a mean flow velocity in the ...

Holger Siebert; Katrin Lehmann; Raymond A. Shaw

2007-06-01T23:59:59.000Z

450

Carbon nanotube, graphene and atomic wires as next generation interconnects: current status and future promise  

Science Conference Proceedings (OSTI)

Carbon based metal wires such as carbon nanotube (CNT) and graphene nano ribbon (GNR) attracted much attention for possible applications as future interconnects. In particular, both CNTs and GNRs have long electron mean free path (~ ), high carrier ... Keywords: design, performance, quantum simulation, reliability

Saroj K. Nayak

2009-07-01T23:59:59.000Z

451

Fragmentation of Thin Wires under High Voltage Pulses and Bipolar Fusion  

Science Conference Proceedings (OSTI)

In this article we present an alternative explanation of the phenomenon of wire fragmentation under high transient currents based on classical electromagnetism. We also explain how this phenomenon can be utilized as a primitive example of low energy-high power disruptive phenomena that can affect even nuclear matter.

Papageorgiou, C. D. [Dept. of Electrical and Electronic Engineering, National Technical University of Athens (Greece); Raptis, T. E. [Division of Applied Technologies, National Centre for Science and Research 'Demokritos', Patriarchou Grigoriou and Neapoleos, Athens (Greece)

2010-01-21T23:59:59.000Z

452

Set Up and Test Results for a Vibrating Wire System for Quadrupole Fiducialization  

Science Conference Proceedings (OSTI)

Quadrupoles will be placed between the undulator segments in LCLS to keep the electron beam focused as it passes through. The quadrupoles will be assembled with their respective undulator segments prior to being placed into the tunnel. Beam alignment will be used to center the quadrupoles, along with the corresponding undulators, on the beam. If there is any displacement between the undulator and the quadrupole axes in the assemblies, the beam will deviate from the undulator axis. If it deviates by more than 80{micro}m in vertical or 140{micro}m in horizontal directions, the undulator will not perform as required by LCLS. This error is divided between three sources: undulator axis fiducialization, quadrupole magnetic axis fiducialization, and assembly of the two parts. In particular, it was calculated that the quadrupole needs to be fiducialized to within 25{micro}m in both vertical and horizontal directions. A previous study suggested using a vibrating wire system for finding the magnetic axis of a quadrupole. The study showed that the method has high sensitivity (up to 1{micro}m) and laid out guidelines for constructing it. There are 3 steps in fiducializing the quadrupole with the vibrating wire system. They are positioning the wire at the magnet center (step 1), finding the wire with position detectors (step 2), and finding the quadrupole tooling ball positions relative to the position detector tooling balls (step 3). The following break up of error was suggested for the fiducialization steps: 10{micro}m for step 1 (finding the center), 20{micro}m for step 2 (finding the wire), and 10{micro}m for step 3 (tooling ball measurements). The purpose of this study is to investigate whether the vibrating wire system meets the requirements for LCLS. In particular, if it can reliably fiducialize a quadrupole magnetic center to within 25{micro}m in both vertical and horizontal directions. The behavior of individual system components is compared to the expected performance. A vibrating wire system was constructed to fiducialize the quadrupoles between undulator segments in the LCLS. This note studies the ability of the system to fulfill the fiducialization requirements.

Not Available

2010-11-29T23:59:59.000Z

453

Set Up and Test Results for a Vibrating Wire System for Quadrupole Fiducialization  

Science Conference Proceedings (OSTI)

Quadrupoles will be placed between the undulator segments in LCLS to keep the electron beam focused as it passes through. The quadrupoles will be assembled with their respective undulator segments prior to being placed into the tunnel. Beam alignment will be used to center the quadrupoles, along with the corresponding undulators, on the beam. If there is any displacement between the undulator and the quadrupole axes in the assemblies, the beam will deviate from the undulator axis. If it deviates by more than 80{micro}m in vertical or 140{micro}m in horizontal directions, the undulator will not perform as required by LCLS. This error is divided between three sources: undulator axis fiducialization, quadrupole magnetic axis fiducialization, and assembly of the two parts. In particular, it was calculated that the quadrupole needs to be fiducialized to within 25{micro}m in both vertical and horizontal directions. A previous study suggested using a vibrating wire system for finding the magnetic axis of a quadrupole. The study showed that the method has high sensitivity (up to 1{micro}m) and laid out guidelines for constructing it. There are 3 steps in fiducializing the quadrupole with the vibrating wire system. They are positioning the wire at the magnet center (step 1), finding the wire with position detectors (step 2), and finding the quadrupole tooling ball positions relative to the position detector tooling balls (step 3). The following break up of error was suggested for the fiducialization steps: 10{micro}m for step 1 (finding the center), 20{micro}m for step 2 (finding the wire), and 10{micro}m for step 3 (tooling ball measurements). The purpose of this study is to investigate whether the vibrating wire system meets the requirements for LCLS. In particular, if it can reliably fiducialize a quadrupole magnetic center to within 25{micro}m in both vertical and horizontal directions. The behavior of individual system components is compared to the expected performance. A vibrating wire system was constructed to fiducialize the quadrupoles between undulator segments in the LCLS. This note studies the ability of the system to fulfill the fiducialization requirements.

Levashov, Michael Y.

2010-12-01T23:59:59.000Z

454

Estimation of Near-Ground Propagation Conditions Using Radar Ground Echo Coverage  

Science Conference Proceedings (OSTI)

The vertical gradient of refractivity (dN/dh) determines the path of the radar beam; namely, the larger the negative values of the refractivity gradient, the more the beam bends toward the ground. The variability of the propagation conditions ...

Shinju Park; Frdric Fabry

2011-02-01T23:59:59.000Z

455

Effects of mesh density and flow conditioning in simulating 7-pin wire wrapped fuel pins.  

Science Conference Proceedings (OSTI)

In response to the goals outlined by the U.S. Department of Energy's Global Nuclear Energy Partnership program, Argonne National Laboratory has initiated an effort to create an integrated multi-physics multi-resolution thermal hydraulic simulation tool package for the evaluation of nuclear power plant design and safety. As part of this effort, the applicability of a variety of thermal hydraulic analysis methods for the prediction of heat transfer and fluid dynamics in the wire-wrapped fuel-rod bundles found in a fast reactor core is being evaluated. The work described herein provides an initial assessment of the capabilities of the general purpose commercial computational fluid dynamics code Star-CD for the prediction of fluid dynamic characteristics in a wire wrapped fast reactor fuel assembly. A 7-pin wire wrapped fuel rod assembly based on the dimensions of fuel elements in the concept Advanced Burner Test Reactor [1] was simulated for different mesh densities and domain configurations. A model considering a single axial span of the wire wrapped fuel assembly was initially used to assess mesh resolution effects. The influence of the inflow/outflow boundary conditions on the predicted flow fields in the single-span model were then investigated through comparisons with the central span region of models which included 3 and 5 spans. The change in grid refinement had minimal impact on the inter-channel exchange within the assembly resulting in roughly a 5 percent maximum difference. The central span of the 3-span and 5-span cases exhibits much higher velocities than the single span case,, with the largest deviation (15 to 20 percent) occurring furthest away from the wire spacer grids in the higher velocity regions. However, the differences between predicted flow fields in the 3-span and 5-span models are minimal.

Smith, J. G.; Babin, B. R.; Pointer, W. D.; Fischer, P. F. (Mathematics and Computer Science); ( NE); (Kansas State Univ.)

2008-01-01T23:59:59.000Z

456

Latching micro optical switch  

DOE Patents (OSTI)

An optical switch reliably maintains its on or off state even when subjected to environments where the switch is bumped or otherwise moved. In addition, the optical switch maintains its on or off state indefinitely without requiring external power. External power is used only to transition the switch from one state to the other. The optical switch is configured with a fixed optical fiber and a movable optical fiber. The movable optical fiber is guided by various actuators in conjunction with a latching mechanism that configure the switch in one position that corresponds to the on state and in another position that corresponds to the off state.

Garcia, Ernest J; Polosky, Marc A

2013-05-21T23:59:59.000Z

457

Integrated optical tamper sensor  

DOE Patents (OSTI)

This invention consists of an monolithic optical tamper sensor, comprising an optical emitter and detector, connected by an optical waveguide and placed into the critical entry plane of an enclosed sensitive region, the tamper sensor having a myriad of scraps of a material optically absorbent at the wavelength of interest, such that when the absorbent material is in place on the waveguide, an unique optical signature can be recorded, but when entry is attempted into the enclosed sensitive region, the scraps of absorbent material will be displaced and the optical/electrical signature of the tamper sensor will change and that change can be recorded.

Carson, R.F.; Casalnuovo, S.A.

1991-12-31T23:59:59.000Z

458

Ground motion data for International Collider models  

SciTech Connect

The proposed location for the International Linear Collider (ILC) in the Americas region is Fermilab in Batavia Illinois. If built at this location the tunnels would be located in the Galena Platteville shale at a depth of 100 or more meters below the surface. Studies using hydro static water levels and seismometers have been conducted in the MINOS hall and the LaFrange Mine in North Aurora Illinois to determine the level of ground motion. Both these locations are in the Galena Platteville shale and indicate the typical ground motion to be expected for the ILC. The data contains both natural and cultural noise. Coefficients for the ALT law are determined. Seismic measurements at the surface and 100 meters below the surface are presented.

Volk, J.T.; LeBrun, P.; Shiltsev, V.; Singatulin, S.; /Fermilab

2007-11-01T23:59:59.000Z

459

Ground Source Heat Pump System Data Analysis  

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

Peer Review Peer Review GSHP System Data Analysis Xiaobing Liu, Ph.D. Oak Ridge National Laboratory liux2@ornl.gov (865-574-2593) 4/3/2013 - GSHP Data Analysis in 1 st phase of U.S.-China CERC-BEE - GSHP ARRA Grantee Data Mining 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: High first cost of ground heat exchangers (GHXs) and lack of knowledge/trust in achievable benefits are major barriers preventing

460

Ground Source Heat Pump System Data Analysis  

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

Peer Review Peer Review GSHP System Data Analysis Xiaobing Liu, Ph.D. Oak Ridge National Laboratory liux2@ornl.gov (865-574-2593) 4/3/2013 - GSHP Data Analysis in 1 st phase of U.S.-China CERC-BEE - GSHP ARRA Grantee Data Mining 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: High first cost of ground heat exchangers (GHXs) and lack of knowledge/trust in achievable benefits are major barriers preventing

Note: This page contains sample records for the topic "optical ground wire" 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

Entanglement Energetics in the Ground State  

E-Print Network (OSTI)

We show how many-body ground state entanglement information may be extracted from sub-system energy measurements at zero temperature. A precise relation between entanglement and energy fluctuations is demonstrated in the weak coupling limit. Examples are given with the two-state system and the harmonic oscillator, and energy probability distributions are calculated. Comparisons made with recent qubit experiments show this type of measurement provides another method to quantify entanglement with the environment.

Andrew N. Jordan; Markus Buttiker

2005-01-04T23:59:59.000Z

462

Ground Motion Model of the SLAC Site ?  

E-Print Network (OSTI)

motion p(?, L) can be written as p(?, L) = p(?)2(1 ? c(?, L)) which in turn can be transformed into P(?, k) [9]. We present a ground motion model for the SLAC site. This Measurements [2, 6] show that the fast motion in a rea-model is based on recent ground motion studies performed sonably quiet site consists primarily of elastic waves prop-at SLAC as well as on historical data. The model includes agating with a high velocity v (of the order of km/s). wave-like, diffusive and systematic types of motion. An The correlation is then completely defined by this velocity attempt is made to relate measurable secondary properties (which may be a function of frequency) and by the distri-of the ground motion with more basic characteristics such bution of the noise sources. In the case where the waves as the layered geological structure of the surrounding earth, propagate on the surface and are distributed uniformly in depth of the tunnel, etc. This model is an essential step in azimuthal angle, the correlation is given by c(?, L) = evaluating sites for a future linear collider. ?cos(?L/v cos(?))?? = J0(?L/v) and the corresponding 2-D spectrum of the ground motion is P(?, k) = 2p(?) / ? (?/v(f)) 2 ? k2, |k | ? ?/v(f). The absolute power spectrum of the fast motion, assumed for the SLAC model, corresponds to measurements performed at 2 AM in one of the quietest locations at SLAC, sector 10 of the linac [2], (see Fig.1). The spatial properties are defined by the phase velocity found from correlation measurements v(f) = 450 + 1900 exp(?f/2) (with v in m/s, f in Hz) [2]. 1

Andrei Seryi; Tor Raubenheimer

2000-01-01T23:59:59.000Z

463

Compression of ground-motion data  

Science Conference Proceedings (OSTI)

Ground motion data has been recorded for many years at Nevada Test Site and is now stored on thousands of digital tapes. The recording format is very inefficient in terms of space on tape. This report outlines a method to compress the data onto a few hundred tapes while maintaining the accuracy of the recording and allowing restoration of any file to the original format for future use. For future digitizing a more efficient format is described and suggested.

Long, J.W.

1981-04-01T23:59:59.000Z

464

ESF GROUND SUPPORT - STRUCTURAL STEEL ANALYSIS  

Science Conference Proceedings (OSTI)

The purpose and objective of this analysis are to expand the level of detail and confirm member sizes for steel sets included in the Ground Support Design Analysis, Reference 5.20. This analysis also provides bounding values and details and defines critical design attributes for alternative configurations of the steel set. One possible configuration for the steel set is presented. This analysis covers the steel set design for the Exploratory Studies Facility (ESF) entire Main Loop 25-foot diameter tunnel.

T. Misiak

1996-06-26T23:59:59.000Z

465

Remote measurement of ground temperature and emissivity  

SciTech Connect

TAISIR, Temperature and Imaging System InfraRed, is a nominally satellite based platform for remote sensing of the earth. One of its design features is to acquire atmospheric data simultaneous with ground data, resulting in minimal dependence on external atmospheric models for data correction. Extensive modeling of the rms error of determining a ground temperature and emissivity for a gray body has been performed as a function of integration time, spectroscopic resolution of the system, ground emissivity, atmospheric variables, and atmospheric data accuracy. We find that increased resolution improves measurement accuracy by emphasizing those regions where the atmospheric transmission is highest and atmospheric emission/absorption lowest. We find rms temperature errors {le}1K and rms emissivity errors <0.01 are obtainable for reasonable seeing and with sufficient information about the atmosphere. A new method is developed for modeling the dependence of the band-averaged transmission and emission. Monte Carlo simulations of satellite data taken using a multi-angle technique are used to derive signal-to-noise requirements. The applicability of those results to the TAISIR system requirements are discussed.

Henderson, J.R.

1994-06-01T23:59:59.000Z

466

Fibre Optic Cables: Tapping into fibre optic cables  

Science Conference Proceedings (OSTI)

When researchers laid the first undersea communication cable in the 1850s, they could not have known how long distance communications would advance in the subsequent 150 years. Thick copper wire laid under the ocean began carrying telegraph signals around ...

Bernard Everett

2007-05-01T23:59:59.000Z

467

Optical Control of a Quantum Rotor  

E-Print Network (OSTI)

The possibility to coherently control a quantum rotor is investigated theoretically. The rotor is realized by an antiferromagnetic spin-1 Bose-Einstein condensate, trapped in the optical field of a Fabry-Perot resonator. By tuning the pumping field of the resonator, coherent control over the rotor is achieved. The technique is illustrated by the numerical simulation of a protocol that transforms the rotor's ground state into a squeezed state. The detection of the squeezed state via measurement of intensity-correlations of the cavity field is proposed.

Lukas F. Buchmann; H. Jing; C. Raman; P. Meystre

2013-03-04T23:59:59.000Z

468

Optical voltage reference  

DOE Patents (OSTI)

An optical voltage reference for providing an alternative to a battery source is described. The optical reference apparatus provides a temperature stable, high precision, isolated voltage reference through the use of optical isolation techniques to eliminate current and impedance coupling errors. Pulse rate frequency modulation is employed to eliminate errors in the optical transmission link while phase-lock feedback is employed to stabilize the frequency to voltage transfer function. 2 figures.

Rankin, R.; Kotter, D.

1994-04-26T23:59:59.000Z

469

Optical voltage reference  

DOE Patents (OSTI)

An optical voltage reference for providing an alternative to a battery source. The optical reference apparatus provides a temperature stable, high precision, isolated voltage reference through the use of optical isolation techniques to eliminate current and impedance coupling errors. Pulse rate frequency modulation is employed to eliminate errors in the optical transmission link while phase-lock feedback is employed to stabilize the frequency to voltage transfer function.

Rankin, R.; Kotter, D.

1992-12-31T23:59:59.000Z

470

Ground-based measurements of solar diameter  

E-Print Network (OSTI)

The solar diameter changes or not? Whatever will be the answer the methods used for its measurements are more and more challenging, and facing new astrophysical and optical problems since the required space resolution is of astrometric quality. A quick overview on different methods is here presented, as well as the problem of the solar limb definition, emerging after the flash spectrum during eclipses.

Sigismondi, Costantino

2011-01-01T23:59:59.000Z

471

DTIRC based optical collimators  

Science Conference Proceedings (OSTI)

Non-imaging optical concentrators have been used in the past to increase the power density of incoming radiation in applications such as photovoltaic (PV) solar and optical wireless communications. This paper explores the use of Dielectric Totally Internally ... Keywords: DTIRC, collimator, concentrator, non-imaging, optical

Roberto Ramirez-Iniguez; Ali Ahmadinia; Hernando Fernandez-Canque

2011-09-01T23:59:59.000Z

472

Diffusion Multilayer Sampling of Ground Water in Five Wells at...  

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

Diffusion Multilayer Sampling of Ground Water in Five Wells at the Tuba City, Arizona, Site Diffusion Multilayer Sampling of Ground Water in Five Wells at the Tuba City, Arizona,...

473

Analysis of Contaminant Rebound in Ground Water in Extraction...  

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

of Contaminant Rebound in Ground Water in Extraction Wells at the Tuba City, Arizona, Site Analysis of Contaminant Rebound in Ground Water in Extraction Wells at the Tuba City,...

474

Federal Energy Management Program: Covered Product Category: Ground-Source  

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

Ground-Source Heat Pumps to someone by E-mail Ground-Source Heat Pumps to someone by E-mail Share Federal Energy Management Program: Covered Product Category: Ground-Source Heat Pumps on Facebook Tweet about Federal Energy Management Program: Covered Product Category: Ground-Source Heat Pumps on Twitter Bookmark Federal Energy Management Program: Covered Product Category: Ground-Source Heat Pumps on Google Bookmark Federal Energy Management Program: Covered Product Category: Ground-Source Heat Pumps on Delicious Rank Federal Energy Management Program: Covered Product Category: Ground-Source Heat Pumps on Digg Find More places to share Federal Energy Management Program: Covered Product Category: Ground-Source Heat Pumps on AddThis.com... Energy-Efficient Products Federal Requirements Covered Product Categories

475

New and Underutilized Technology: Commercial Ground Source Heat Pumps |  

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

Commercial Ground Source Heat Commercial Ground Source Heat Pumps New and Underutilized Technology: Commercial Ground Source Heat Pumps October 8, 2013 - 2:59pm Addthis The following information outlines key deployment considerations for commercial ground source heat pumps within the Federal sector. Benefits Commercial ground source heat pumps are ground source heat pump with loops that feed multiple packaged heat pumps and a single ground source water loop. Unit capacity is typically 1-10 tons and may be utilized in an array of multiple units to serve a large load. Application Condensing boilers are appropriate for housing, service, office, and research and development applications. Key Factors for Deployment FEMP has made great progress with commercial ground source heat pump technology deployment within the Federal sector. Primary barriers deal with

476

Category:Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Ground Electromagnetic Techniques Ground Electromagnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Ground Electromagnetic Techniques page? For detailed information on Ground Electromagnetic Techniques, click here. Category:Ground Electromagnetic Techniques Add.png Add a new Ground Electromagnetic Techniques Technique Subcategories This category has the following 2 subcategories, out of 2 total. E [×] Electromagnetic Profiling Techniques‎ 1 pages [+] Electromagnetic Sounding Techniques‎ (1 categories) 2 pages Pages in category "Ground Electromagnetic Techniques" The following 2 pages are in this category, out of 2 total. E Electromagnetic Profiling Techniques Electromagnetic Sounding Techniques Retrieved from "http://en.openei.org/w/index.php?title=Category:Ground_Electromagnetic_Techniques&oldid=689834"

477

Response of continuous pipelines to tunnel induced ground deformations  

E-Print Network (OSTI)

This thesis develops analytical solutions for estimating the bending moments and axial loads in a buried pipeline due to ground movements caused by tunnel construction in soft ground. The solutions combine closed-form, ...

Ieronymaki, Evangelia S

2011-01-01T23:59:59.000Z

478

Positive Cloud-to-Ground Lightning in Mesoscale Convective Systems  

Science Conference Proceedings (OSTI)

We have examined the characteristics of positive cloud-to-ground lightning flashes in Mesoscale Convective Systems observed during the Oklahoma-Kansas PRE-STORM project in 1985. Lightning frequencies and patterns of ground strike locations are ...

Steven A. Rutledge; Chungu Lu; Donald R. MacGorman

1990-09-01T23:59:59.000Z

479

A review of methods for grounding grid analysis  

Science Conference Proceedings (OSTI)

This paper presents a brief review of the most important methods available for the grounding grid analysis. This includes numerical methods intended for the grounding grid direct current, time-harmonic current and transient current energization. Emphasis ...

Petar Saraj?ev; Slavko Vujevic

2009-09-01T23:59:59.000Z

480

Ground Validation for the Tropical Rainfall Measuring Mission (TRMM)  

Science Conference Proceedings (OSTI)

An overview of the Tropical Rainfall Measuring Mission (TRMM) Ground Validation (GV) Program is presented. This ground validation (GV) program is based at NASA Goddard Space Flight Center in Greenbelt, Maryland, and is responsible for processing ...

David B. Wolff; D. A. Marks; E. Amitai; D. S. Silberstein; B. L. Fisher; A. Tokay; J. Wang; J. L. Pippitt

2005-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "optical ground wire" 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

Definition: Ground Source Heat Pumps | Open Energy Information  

Open Energy Info (EERE)

Pumps Pumps Jump to: navigation, search Dictionary.png Ground Source Heat Pumps A Ground Source Heat Pump is a central building heating and/or cooling system that takes advantage of the relatively constant year-round ground temperature to pump heat to or from the ground.[1][2][3] View on Wikipedia Wikipedia Definition A geothermal heat pump or ground source heat pump (GSHP) is a central heating and/or cooling system that pumps heat to or from the ground. It uses the earth as a heat source (in the winter) or a heat sink (in the summer). This design takes advantage of the moderate temperatures in the ground to boost efficiency and reduce the operational costs of heating and cooling systems, and may be combined with solar heating to form a geosolar system with even greater efficiency. Ground source heat pumps

482

Building Technologies Office: Ground Source Heap Pump Data Mining Research  

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

Ground Source Heap Pump Ground Source Heap Pump Data Mining Research Project to someone by E-mail Share Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Facebook Tweet about Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Twitter Bookmark Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Google Bookmark Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Delicious Rank Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Digg Find More places to share Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE Activities

483

Appendix E Supporting Information for Ground Water Modeling  

Office of Legacy Management (LM)

Supporting Information for Ground Water Modeling Supporting Information for Ground Water Modeling This page intentionally left blank Contents Section Geologic Map of Site Area ........................................................................................................ E1.O Stream Flow Measurements ...................................................................................................... E2.0 Estimates of Ground Water Flow .............................................................................................. E3.0 .......................................... MODFLOW Flow Budget Analysis for OU 1 1 1 Model Subregions E4.0 ............................................................................ Burro Canyon Aquifer Ground Water Model E5.0 This page intentionally left blank

484

Cooperative heat transfer and ground coupled storage system  

DOE Patents (OSTI)

A cooperative heat transfer and ground coupled storage system wherein collected solar heat energy is ground stored and permitted to radiate into the adjacent ground for storage therein over an extended period of time when such heat energy is seasonally maximally available. Thereafter, when said heat energy is seasonally minimally available and has propagated through the adjacent ground a substantial distance, the stored heat energy may be retrieved by a circumferentially arranged heat transfer means having a high rate of heat transfer.

Metz, Philip D. (Rocky Point, NY)

1982-01-01T23:59:59.000Z

485

Ground Gravity Survey At Blue Mountain Area (Fairbank Engineering...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Blue Mountain Area (Fairbank Engineering, 2006) Exploration Activity...

486

Transmission Line Grounding: Considerations and Practices Close to Substations  

Science Conference Proceedings (OSTI)

Grounding is an essential part of any electrical installation because it is needed for safe and reliable operation. In principle, a grounding system serves as a zero potential reference for the electrical system by providing a low impedance connection to earth (ground). Additionally, the design of the grounding system should be so that the buildups of potential gradients around electrical installations are limited to safe values.This report describes the aspects of the design and sizing ...

2013-12-20T23:59:59.000Z

487

NIST Optical Radiation Staff Directory  

Science Conference Proceedings (OSTI)

Optical Radiation Staff Directory. Staff. Name, Position, Office Phone. ... Contact. Optical Radiation Group Eric Shirley, Group Leader. ...

2013-08-02T23:59:59.000Z