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1

Log of a young author's thinking: George W. Cable's "Drop Shot".  

E-Print Network [OSTI]

. . t 1974 Major Subject: English LOG OF A YOUNG AUTHOR'S THINKING: GEORGE W CABLE'S "DROP SHOT" A Thesis by AUTRY JAMES SINITIERE Approved as to style and content by: Chairman of Committe Hea of Department M er ember) August 1974 & s ~~. )$, gg... APSTRACT Log of a Young Author's Thinking: George W. Cable's "Drop Shot" (August 1974) Autry James Sinitiere, B. A. , College of Santa Fe Chairman of Advisory Committee: Dr Richard H. Ballinger In February 1870 George W. Cable began writing a * p p...

Sinitiere, Autry James

1974-01-01T23:59:59.000Z

2

The US market for high-temperature superconducting wire in transmission cable applications  

SciTech Connect (OSTI)

Telephone interviews were conducted with 23 utility engineers concerning the future prospects for high-temperature superconducting (HTS) transmission cables. All have direct responsibility for transmission in their utility, most of them in a management capacity. The engineers represented their utilities as members of the Electric Power Research Institute`s Underground Transmission Task Force (which has since been disbanded). In that capacity, they followed the superconducting transmission cable program and are aware of the cryogenic implications. Nineteen of the 23 engineers stated the market for underground transmission would grow during the next decade. Twelve of those specified an annual growth rate; the average of these responses was 5.6%. Adjusting that figure downward to incorporate the remaining responses, this study assumes an average growth rate of 3.4%. Factors driving the growth rate include the difficulty in securing rights-of-way for overhead lines, new construction techniques that reduce the costs of underground transmission, deregulation, and the possibility that public utility commissions will allow utilities to include overhead costs in their rate base. Utilities have few plans to replace existing cable as preventive maintenance, even though much of the existing cable has exceeded its 40-year lifetime. Ten of the respondents said the availability of a superconducting cable with the same life-cycle costs as a conventional cable and twice the ampacity would induce them to consider retrofits. The respondents said a cable with those characteristics would capture 73% of their cable retrofits.

Forbes, D.

1996-04-01T23:59:59.000Z

3

Superconducting Cable  

DOE Patents [OSTI]

In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0.2%. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.

Hughey, Raburn L. (Franklin, GA); Sinha, Uday K. (Carrollton, GA); Reece, David S. (Carrollton, GA); Muller, Albert C. (Eidson, TN)

2005-07-22T23:59:59.000Z

4

Superconducting Cable  

DOE Patents [OSTI]

In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0.2%. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.

Hughey, Raburn L. (Franklin, GA); Sinha, Uday K. (Carrollton, GA); Reece, David S. (Carrollton, GA); Muller, Albert C. (Eidson, TN)

2005-03-08T23:59:59.000Z

5

Laboratory manual for static pressure drop experiments in LMFBR wire wrapped rod bundles  

SciTech Connect (OSTI)

Purpose of this experiment is to determine both interior and edge subchannel axial pressure drops for a range of Reynolds numbers. The subchannel static pressure drop is used to calculate subchannel and bundle average friction factors, which can be used to verify existing friction factor correlations. The correlations for subchannel friction factors are used as input to computer codes which solve the coupled energy, continuity, and momentum equations, and are also used to develop flow split correlations which are needed as input to codes which solve only the energy equation. The bundle average friction factor is used to calculate the overall bundle pressure drop, which determines the required pumping power.

Burns, K.J.; Todreas, N.E.

1980-07-01T23:59:59.000Z

6

Superconductor cable  

DOE Patents [OSTI]

A superconductor cable includes a superconductive cable core (1) and a cryostat (2) enclosing the same. The cable core (1) has a superconductive conductor (3), an insulation (4) surrounding the same and a shielding (5) surrounding the insulation (4). A layer (3b) of a dielectric or semiconducting material is applied to a central element (3a) formed from a normally conducting material as a strand or tube and a layer (3c) of at least one wire or strip of superconductive material is placed helically on top. The central element (3a) and the layer (3c) are connected to each other in an electrically conducting manner at the ends of the cable core (1).

Allais, Arnaud (Hannover, DE); Schmidt, Frank (Langenhagen, DE

2009-12-15T23:59:59.000Z

7

Correction coil cable  

DOE Patents [OSTI]

A wire cable assembly adapted for the winding of electrical coils is taught. A primary intended use is for use in particle tube assemblies for the Superconducting Super Collider. The correction coil cables have wires collected in wire array with a center rib sandwiched therebetween to form a core assembly. The core assembly is surrounded by an assembly housing having an inner spiral wrap and a counter wound outer spiral wrap. An alternate embodiment of the invention is rolled into a keystoned shape to improve radial alignment of the correction coil cable on a particle tube in a particle tube assembly. 7 figs.

Wang, S.T.

1994-11-01T23:59:59.000Z

8

High Temperature Superconducting Underground Cable  

SciTech Connect (OSTI)

The purpose of this Project was to design, build, install and demonstrate the technical feasibility of an underground high temperature superconducting (HTS) power cable installed between two utility substations. In the first phase two HTS cables, 320 m and 30 m in length, were constructed using 1st generation BSCCO wire. The two 34.5 kV, 800 Arms, 48 MVA sections were connected together using a superconducting joint in an underground vault. In the second phase the 30 m BSCCO cable was replaced by one constructed with 2nd generation YBCO wire. 2nd generation wire is needed for commercialization because of inherent cost and performance benefits. Primary objectives of the Project were to build and operate an HTS cable system which demonstrates significant progress towards commercial progress and addresses real world utility concerns such as installation, maintenance, reliability and compatibility with the existing grid. Four key technical areas addressed were the HTS cable and terminations (where the cable connects to the grid), cryogenic refrigeration system, underground cable-to-cable joint (needed for replacement of cable sections) and cost-effective 2nd generation HTS wire. This was the world’s first installation and operation of an HTS cable underground, between two utility substations as well as the first to demonstrate a cable-to-cable joint, remote monitoring system and 2nd generation HTS.

Farrell, Roger, A.

2010-02-28T23:59:59.000Z

9

Semiconductor Bridge Cable Test  

SciTech Connect (OSTI)

The semiconductor bridge (SCB) is an electroexplosive device used to initiate detonators. A C cable is commonly used to connect the SCB to a firing set. A series of tests were performed to identify smaller, lighter cables for firing single and multiple SCBs. This report provides a description of these tests and their results. It was demonstrated that lower threshold voltages and faster firing times can be achieved by increasing the wire size, which reduces ohmic losses. The RF 100 appears to be a reasonable substitute for C cable when firing single SCBs. This would reduce the cable volume by 68% and the weight by 67% while increasing the threshold voltage by only 22%. In general, RG 58 outperforms twisted pair when firing multiple SCBs in parallel. The RG 58's superior performance is attributed to its larger conductor size.

KING, TONY L.

2002-01-01T23:59:59.000Z

10

Superconductor cable  

DOE Patents [OSTI]

A superconductor cable is described, having a superconductive flexible cable core (1) , which is laid in a cryostat (2, 3, 4), in which the cable core (1) runs in the cryostat (2, 3, 4) in the form of a wave or helix at room temperature.

Allais, Arnaud; Schmidt, Frank; Marzahn, Erik

2010-05-04T23:59:59.000Z

11

Insulating and sheathing materials of electric and optical cables - Common test methods - Part 5-1: Methods specific to filling compounds - Drop-point - Separation of oil - Lower temperature brittleness - Total acid number - Absence of corrosive components - Permittivity at 23 °C - DC resistivity at 23 °C and 100 °C  

E-Print Network [OSTI]

Specifies the test methods for filling compounds of electric cables used with telecommunication equipment. Gives the methods for drop-point, separation of oil, lower temperature brittleness, total acid number, absence of corrosive components, permittivity at 23 °C, d.c. resistivity at 23°C and 100°C.

International Electrotechnical Commission. Geneva

2004-01-01T23:59:59.000Z

12

Apparatus producing constant cable tension for intermittent demand  

DOE Patents [OSTI]

This invention relates to apparatus for producing constant tension in cable or the like when it is unreeled and reeled from a drum or spool under conditions of intermittent demand. The invention is particularly applicable to the handling of superconductive cable, but the invention is also applicable to the unreeling and reeling of other strands, such as electrical cable, wire, cord, other cables, fish line, wrapping paper and numerous other materials.

Lauritzen, T.

1984-05-23T23:59:59.000Z

13

Superconducting Cable Having A Felexible Former  

DOE Patents [OSTI]

In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0.2%. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.

Hughey, Raburn L. (Franklin, GA); Sinha, Uday K. (Carrollton, GA); Reece, David S. (Carrollton, GA); Muller, Albert C. (Eidson, TN)

2005-03-15T23:59:59.000Z

14

Superconducting Cable Having A Flexible Former  

DOE Patents [OSTI]

In order to provide a flexible oxide superconducting cable which is reduced in AC loss, tape-shaped superconducting wires covered with a stabilizing metal are wound on a flexible former. The superconducting wires are preferably laid on the former at a bending strain of not more than 0.2%. In laying on the former, a number of tape-shaped superconducting wires are laid on a core member in a side-by-side manner, to form a first layer. A prescribed number of tape-shaped superconducting wires are laid on top of the first layer in a side-by-side manner, to form a second layer. The former may be made of a metal, plastic, reinforced plastic, polymer, or a composite and provides flexibility to the superconducting wires and the cable formed therewith.

Hughey, Raburn L. (Franklin, GA); Sinha, Uday K. (Carrollton, GA); Reece, David S. (Carrollton, GA); Muller, Albert C. (Eidson, TN)

2005-08-30T23:59:59.000Z

15

Superconducting cable-in-conduit low resistance splice  

DOE Patents [OSTI]

A low resistance splice connects two cable-in-conduit superconductors to each other. Dividing collars for arranging sub-cable units from each conduit are provided, along with clamping collars for mating each sub-cable wire assembly to form mated assemblies. The mated assemblies ideally can be accomplished by way of splicing collar. The mated assemblies are cooled by way of a flow of coolant, preferably helium. A method for implementing such a splicing is also described.

Artman, Thomas A. (Forest, VA)

2003-06-24T23:59:59.000Z

16

Proposal of a method for real cables EMC  

E-Print Network [OSTI]

Proposal of a method for real cables EMC modeling Olivier Maurice 23. juillet 2008 Abstract TThis paper deals with a method for the real cables EMC (ElectroMagnetic Compatibility) modeling compatibility (EMC). The objective is firstly to take into account the continuous interlacing of the wires

Boyer, Edmond

17

Mechanical design of submarine power cables for floating platforms  

SciTech Connect (OSTI)

The process of mechanical design of submarine power cables employed by the Simplex Wire and Cable Company is described. The process commences with design criteria and proceeds through preliminary design, load and stress analyses and culminates in extreme value reliability and lifetime predictions. The analytical methods employed are emphasized and some representative numerical results are presented.

Bisplinghoff, R. L.; Libby, D. O.; Costantino, R. W.

1980-01-01T23:59:59.000Z

18

Commercialization of Medium Voltage HTS Triax TM Cable Systems  

SciTech Connect (OSTI)

The original project scope that was established in 2007 aimed to install a 1,700 meter (1.1 mile) medium voltage HTS Triax{TM} cable system into the utility grid in New Orleans, LA. In 2010, however, the utility partner withdrew from the project, so the 1,700 meter cable installation was cancelled and the scope of work was reduced. The work then concentrated on the specific barriers to commercialization of HTS cable technology. The modified scope included long-length HTS cable design and testing, high voltage factory test development, optimized cooling system development, and HTS cable life-cycle analysis. In 2012, Southwire again analyzed the market for HTS cables and deemed the near term market acceptance to be low. The scope of work was further reduced to the completion of tasks already started and to testing of the existing HTS cable system in Columbus, OH. The work completed under the project included: • Long-length cable modeling and analysis • HTS wire evaluation and testing • Cable testing for AC losses • Optimized cooling system design • Life cycle testing of the HTS cable in Columbus, OH • Project management. The 200 meter long HTS Triax{TM} cable in Columbus, OH was incorporated into the project under the initial scope changes as a test bed for life cycle testing as well as the site for an optimized HTS cable cooling system. The Columbus cable utilizes the HTS TriaxTM design, so it provided an economical tool for these of the project tasks.

Knoll, David

2012-12-31T23:59:59.000Z

19

HIDDEN DAMAGE DETECTION FOR MAIN CABLES OF SUSPENSION BRIDGES INCORPORATING DC MAGNETIZATION WITH A SEARCH COIL-  

E-Print Network [OSTI]

with artificially inflicted broken wires. KEYWORDS : Cable NDE, Search coil, Total flux, DC magnetization, Damage. To overcome this limitation, this study proposes a noncontact cable inspection system incorporating been applied for the inspection of steel cables for ski lifts, elevators, and for other applications

Boyer, Edmond

20

Development of scaling rules for Rutherford type superconducting cables  

SciTech Connect (OSTI)

During the R D phase of the Superconducting Supercollider (SSC) program, LBL was responsible for establishing the parameters for cables used in SSC dipole and quadrupole magnets. In addition, the design and fabrication of a new cable for use in the Low Beta Quadrupoles. As a result of the development work on these and other cables, we have arrived a set of scaling rules which provide guidelines for choosing the parameters for a wide range of superconducting cables. These parameters include strand size, strand number, keystone angle, percent compaction, cable pitch and compacted cable dimensions. In addition, we have defined the tolerance ranges for the key cable manufacturing parameters such as mandrel size and shape, stand tension, and Turkshead temperature control. In this paper, we present the results on cables ranging from 8 strands to 36 strands of 0.65mm wire and from 8 strands to 30 strands of 0.8mm wire. We use these results to demonstrate the application of the scaling rules for Rutherford-type cable.

Royet, J.M.; Scanlan, R.M.

1990-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

Cable Measuring Engine Operation Procedures  

E-Print Network [OSTI]

gov CABLE MEASURING ENGINE OPERATION PROCEDURES LBNL-40565LBNL-40565 CABLE MEASURING ENGINE OPERATION PROCEDURES INDEXThe Cable Measuring Engine (CME) is a tool which measures

Authors, Various

2011-01-01T23:59:59.000Z

22

Electronically controlled cable wrapper  

DOE Patents [OSTI]

A spindle assembly engages and moves along a length of cable to be wrapped with insulating tape. Reels of insulating tape are mounted on a outer rotatable spindle which revolves around the cable to dispense insulating tape. The rate of movement of the spindle assembly along the length of the cable is controlled by a stepper motor which is programmably synchronized to the rate at which rotatable spindle wraps the cable. The stepper motor drives a roller which engages the cable and moves the spindle assembly along the length of the cable as it is being wrapped. The spindle assembly is mounted at the end of an articulated arm which allows free movement of the spindle assembly and allows the spindle assembly to follow lateral movement of the cable.

Young, T.M.

1982-08-17T23:59:59.000Z

23

Apparatus and method for fabricating multi-strand superconducting cable  

DOE Patents [OSTI]

Multi-strand superconducting cables adapted to be used, for example, to wind a magnet is fabricated by directing wire strands inwardly from spools disposed on the perimeter of a rotating disk and wrapping them diagonally around a tapered mandrel with a flattened cross-sectional shape with a core having a wedge-shaped channel. As the cable is pulled axially, flexibly coupled wedge-shaped pieces are continuously passed through the channel in the mandrel and inserted into the cable as an internal support therefor.

Borden, Albert R. (El Cerrito, CA)

1986-01-01T23:59:59.000Z

24

Method for fabricating multi-strand superconducting cable  

DOE Patents [OSTI]

Multi-strand superconducting cables adapted to be used, for example, to wind a magnet are fabricated by directing wire strands inwardly from spools disposed on the perimeter of a rotating disk and wrapping them diagonally around a tapered mandrel with a flattened cross-sectional shape with a core having a wedge-shaped channel. As the cable is pulled axially, flexibly coupled wedge-shaped pieces are continuously passed through the channel in the mandrel and inserted into the cable as an internal support therefor.

Borden, A.R.

1985-04-01T23:59:59.000Z

25

CABLE TECHNOLOGY LABORATORIES, INC. DETERMINATION OF THRESHOLD...  

Office of Scientific and Technical Information (OSTI)

Aged Polymeric Dielectric Cable TABLE OF CONTENTS ABSTRACT INTRODUCTION DESCRIPTION OF TEST CABLES TEMPERATURE CONDITIONING OF TEST CABLES TESTING OF XLPE INSULATED CABLE BEFORE...

26

Cable Measuring Engine Operation Procedures  

SciTech Connect (OSTI)

The Cable Measuring Engine (CME) is a tool which measures and records the cable dimensions in a nondestructive fashion. It is used in-line with the superconductor cable as it is being made. The CME is intended to be used as a standard method of measuring cable by the various manufacturers involved in the cable process.

Authors, Various

1997-07-11T23:59:59.000Z

27

Thermal management of long-length HTS cable systems  

SciTech Connect (OSTI)

Projections of electric power production suggest a major shift to renewables, such as wind and solar, which will be in remote locations where massive quantities of power are available. One solution for transmitting this power over long distances to load centers is direct current (dc), high temperature superconducting (HTS) cables. Electric transmission via dc cables promises to be effective because of the low-loss, highcurrent- carrying capability of HTS wire at cryogenic temperatures. However, the thermal management system for the cable must be carefully designed to achieve reliable and energyefficient operation. Here we extend the analysis of a superconducting dc cable concept proposed by the Electric Power Research Institute (EPRI), which has one stream of liquid nitrogen flowing in a cryogenic enclosure that includes the power cable, and a separate return tube for the nitrogen. Refrigeration stations positioned every 10 to 20 km cool both nitrogen streams. Both go and return lines are contained in a single vacuum/cryogenic envelope. Other coolants, including gaseous helium and gaseous hydrogen, could provide potential advantages, though they bring some technical challenges to the operation of long-length HTS dc cable systems. A discussion of the heat produced in superconducting cables and a system to remove the heat are discussed. Also, an analysis of the use of various cryogenic fluids in long-distance HTS power cables is presented.

Demko, Jonathan A [ORNL; Hassenzahl, William V [ORNL

2011-01-01T23:59:59.000Z

28

Cable Diagnostic Focused Initiative  

SciTech Connect (OSTI)

This report summarizes an extensive effort made to understand how to effectively use the various diagnostic technologies to establish the condition of medium voltage underground cable circuits. These circuits make up an extensive portion of the electric delivery infrastructure in the United States. Much of this infrastructure is old and experiencing unacceptable failure rates. By deploying efficient diagnostic testing programs, electric utilities can replace or repair circuits that are about to fail, providing an optimal approach to improving electric system reliability. This is an intrinsically complex topic. Underground cable systems are not homogeneous. Cable circuits often contain multiple branches with different cable designs and a range of insulation materials. In addition, each insulation material ages differently as a function of time, temperature and operating environment. To complicate matters further, there are a wide variety of diagnostic technologies available for assessing the condition of cable circuits with a diversity of claims about the effectiveness of each approach. As a result, the benefits of deploying cable diagnostic testing programs have been difficult to establish, leading many utilities to avoid the their use altogether. This project was designed to help address these issues. The information provided is the result of a collaborative effort between Georgia Tech NEETRAC staff, Georgia Tech academic faculty, electric utility industry participants, as well as cable system diagnostic testing service providers and test equipment providers. Report topics include: •How cable systems age and fail, •The various technologies available for detecting potential failure sites, •The advantages and disadvantages of different diagnostic technologies, •Different approaches for utilities to employ cable system diagnostics. The primary deliverables of this project are this report, a Cable Diagnostic Handbook (a subset of this report) and an online knowledge based system (KBS) that helps utilities select the most effective diagnostic technologies for a given cable circuit and circuit conditions.

Hartlein, R.A.; Hampton, R.N.

2010-12-30T23:59:59.000Z

29

Magnetic instabilities in Nb3Sn strands and cables  

SciTech Connect (OSTI)

This paper describes a model for calculation of magnetic instabilities in superconducting wires with transport current and reports results of instability simulations in Nb{sub 3}Sn strands from different manufactures. The effect of magnetic instabilities on the strand and cable performance is presented and a criterion for the maximum effective sub-element size of strands for high field magnets is formulated.

Kashikhim, Vadim V.; Zlobin, Alexander V.; /Fermilab

2004-11-01T23:59:59.000Z

30

Multistrand superconductor cable  

DOE Patents [OSTI]

Improved multistrand Rutherford-type superconductor cable is produced by using strands which are preformed, prior to being wound into the cable, so that each strand has a variable cross section, with successive portions having a substantially round cross section, a transitional oval cross section, a rectangular cross section, a transitional oval cross section, a round cross section and so forth, in repetitive cycles along the length of the strand. The cable is wound and flattened so that the portions of rectangular cross section extend across the two flat sides of the cable at the strand angle. The portions of round cross section are bent at the edges of the flattened cable, so as to extend between the two flat sides. The rectangular portions of the strands slide easily over one another, so as to facilitate flexing and bending of the cable, while also minimizing the possibility of causing damage to the strands by such flexing or bending. Moreover, the improved cable substantially maintains its compactness and cross-sectional shape when the cable is flexed or bent.

Borden, Albert R. (El Cerrito, CA)

1985-01-01T23:59:59.000Z

31

Multistrand superconductor cable  

DOE Patents [OSTI]

Improved multistrand Rutherford-type superconductor cable is produced by using strands which are preformed, prior to being wound into the cable, so that each strand has a variable cross section, with successive portions having a substantially round cross section, a transitional oval cross section, a rectangular cross section, a transitional oval cross section, a round cross section and so forth, in repetitive cycles along the length of the strand. The cable is wound and flattened so that the portions of rectangular cross section extend across the two flat sides of the cable at the strand angle. The portions of round cross section are bent at the edges of the flattened cable, so as to extend between the two flat sides. The rectangular portions of the strands slide easil

Borden, A.R.

1984-03-08T23:59:59.000Z

32

Wide-span cable structures  

E-Print Network [OSTI]

In recent years, the application of cable structures in buildings has gained huge popularities. Although cable technology has been established since the 1950s, there is suddenly a surge in the number of its building ...

Santoso, Katherina, 1980-

2004-01-01T23:59:59.000Z

33

Power superconducting power transmission cable  

DOE Patents [OSTI]

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

Ashworth, Stephen P. (Cambridge, GB)

2003-01-01T23:59:59.000Z

34

Superconducting Cable Termination  

DOE Patents [OSTI]

Disclosed is a termination that connects high temperature superconducting (HTS) cable immersed in pressurized liquid nitrogen to high voltage and neutral (shield) external bushings at ambient temperature and pressure. The termination consists of a splice between the HTS power (inner) and shield (outer) conductors and concentric copper pipes which are the conductors in the termination. There is also a transition from the dielectric tape insulator used in the HTS cable to the insulators used between and around the copper pipe conductors in the termination. At the warm end of the termination the copper pipes are connected via copper braided straps to the conventional warm external bushings which have low thermal stresses. This termination allows for a natural temperature gradient in the copper pipe conductors inside the termination which enables the controlled flashing of the pressurized liquid coolant (nitrogen) to the gaseous state. Thus the entire termination is near the coolant supply pressure and the high voltage and shield cold bushings, a highly stressed component used in most HTS cables, are eliminated. A sliding seal allows for cable contraction as it is cooled from room temperature to ˜72-82 K. Seals, static vacuum, and multi-layer superinsulation minimize radial heat leak to the environment.

Sinha, Uday K. (Carrollton, GA); Tolbert, Jerry (Newnan, GA)

2005-08-30T23:59:59.000Z

35

FEM Analysis of Nb-Sn Rutherford-type Cables  

SciTech Connect (OSTI)

An important part of superconducting accelerator magnet work is the conductor. To produce magnetic fields larger than 10 T, brittle conductors are typically used. For instance, for Nb{sub 3}Sn the original round wire, in the form of a composite of Copper, Niobium and Tin, is assembled into a so-called Rutherford-type cable, which is used to wind the magnet. The magnet is then subjected to a high temperature heat treatment to produce the chemical reactions that make the material superconducting. At this stage the superconductor is brittle and its superconducting properties sensitive to strain. This work is based on the development of a 2D finite element model, which simulates the mechanical behavior of Rutherford-type cable before heat treatment. The model was applied to a number of different cable architectures. To validate a critical criterion adopted into the single Nb-Sn wire analysis, the results of the model were compared with those measured experimentally on cable cross sections.

Barzi, Emanuela; Gallo, Giuseppe; Neri, Paolo; /Fermilab

2011-01-01T23:59:59.000Z

36

Disposable telemetry cable deployment system  

DOE Patents [OSTI]

A disposable telemetry cable deployment system for facilitating information retrieval while drilling a well includes a cable spool adapted for insertion into a drill string and an unarmored fiber optic cable spooled onto the spool cable and having a downhole end and a stinger end. Connected to the cable spool is a rigid stinger which extends through a kelly of the drilling apparatus. A data transmission device for transmitting data to a data acquisition system is disposed either within or on the upper end of the rigid stinger.

Holcomb, David Joseph (Sandia Park, NM)

2000-01-01T23:59:59.000Z

37

High conductance surge cable  

DOE Patents [OSTI]

An electrical cable for connecting transient voltage surge suppressors to electrical power panels. A strip of electrically conductive foil defines a longitudinal axis, with a length of an electrical conductor electrically attached to the metallic foil along the longitudinal axis. The strip of electrically conductive foil and the length of an electrical conductor are covered by an insulating material. For impedance matching purposes, triangular sections can be removed from the ends of the electrically conductive foil at the time of installation. 6 figs.

Murray, M.M.; Wilfong, D.H.; Lomax, R.E.

1998-12-08T23:59:59.000Z

38

High conductance surge cable  

DOE Patents [OSTI]

An electrical cable for connecting transient voltage surge suppressers to ectrical power panels. A strip of electrically conductive foil defines a longitudinal axis, with a length of an electrical conductor electrically attached to the metallic foil along the longitudinal axis. The strip of electrically conductive foil and the length of an electrical conductor are covered by an insulating material. For impedance matching purposes, triangular sections can be removed from the ends of the electrically conductive foil at the time of installation.

Murray, Matthew M. (Espanola, NM); Wilfong, Dennis H. (Brooksville, FL); Lomax, Ralph E. (Santa Fe, NM)

1998-01-01T23:59:59.000Z

39

Method to improve superconductor cable  

DOE Patents [OSTI]

A method is disclosed of making a stranded superconductor cable having improved flexing and bending characteristics. In such method, a plurality of superconductor strands are helically wound around a cylindrical portion of a mandrel which tapers along a transitional portion to a flat end portion. The helically wound strands form a multistrand hollow cable which is partially flattened by pressure rollers as the cable travels along the transitional portion. The partially flattened cable is impacted with repeated hammer blows as the hollow cable travels along the flat end portion. The hammer blows flatten both the internal and the external surfaces of the strands. The cable is fully flattened and compacted by two sets of pressure rollers which engage the flat sides and the edges of the cable after it has traveled away from the flat end portion of the mandrel. The flattened internal surfaces slide easily over one another when the cable is flexed or bent so that there is very little possibility that the cable will be damaged by the necessary flexing and bending required to wind the cable into magnet coils.

Borden, A.R.

1984-03-08T23:59:59.000Z

40

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.

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

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

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

42

Photonic-powered cable assembly  

DOE Patents [OSTI]

A photonic-cable assembly includes a power source cable connector ("PSCC") coupled to a power receive cable connector ("PRCC") via a fiber cable. The PSCC electrically connects to a first electronic device and houses a photonic power source and an optical data transmitter. The fiber cable includes an optical transmit data path coupled to the optical data transmitter, an optical power path coupled to the photonic power source, and an optical feedback path coupled to provide feedback control to the photonic power source. The PRCC electrically connects to a second electronic device and houses an optical data receiver coupled to the optical transmit data path, a feedback controller coupled to the optical feedback path to control the photonic power source, and a photonic power converter coupled to the optical power path to convert photonic energy received over the optical power path to electrical energy to power components of the PRCC.

Sanderson, Stephen N.; Appel, Titus James; Wrye, IV, Walter C.

2013-01-22T23:59:59.000Z

43

Photonic-powered cable assembly  

DOE Patents [OSTI]

A photonic-cable assembly includes a power source cable connector ("PSCC") coupled to a power receive cable connector ("PRCC") via a fiber cable. The PSCC electrically connects to a first electronic device and houses a photonic power source and an optical data transmitter. The fiber cable includes an optical transmit data path coupled to the optical data transmitter, an optical power path coupled to the photonic power source, and an optical feedback path coupled to provide feedback control to the photonic power source. The PRCC electrically connects to a second electronic device and houses an optical data receiver coupled to the optical transmit data path, a feedback controller coupled to the optical feedback path to control the photonic power source, and a photonic power converter coupled to the optical power path to convert photonic energy received over the optical power path to electrical energy to power components of the PRCC.

Sanderson, Stephen N; Appel, Titus James; Wrye, IV, Walter C

2014-06-24T23:59:59.000Z

44

Precision wire feeder for small diameter wire  

SciTech Connect (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

45

A Test of HTS Power Cable in a Sweeping Magnetic Field  

SciTech Connect (OSTI)

Short sample HTS power cable composed of multiple 344C-2G strands and designed to energize a fast-cycling dipole magnet was exposed to a sweeping magnetic field in the (2-20) T/s ramping rate. The B-field orientation toward the HTS strands wide surface was varied from 0{sup 0} to 10{sup 0}, in steps of 1{sup 0}. The test arrangement allowed measurement of the combined hysteresis and eddy current power losses. For the validity of these measurements, the power losses of a short sample cable composed of multiple LTS wire strands were also performed to compare with the known data. The test arrangement of the power cable is described, and the test results are compared with the projections for the eddy and hysteresis power losses using the fine details of the test cable structures.

Piekarz, H.; Hays, S.; Blowers, J.; Shiltsev, V.; /Fermilab

2011-11-29T23:59:59.000Z

46

Fully synthetic taped insulation cables  

DOE Patents [OSTI]

The present invention is a cable which, although constructed from inexpensive polyolefin tapes and using typical impregnating oils, furnishes high voltage capability up to 765 kV, and has such excellent dielectric characteristics and heat transfer properties that it is capable of operation at capacities equal to or higher than presently available cables at a given voltage. This is accomplished by using polyethylene, polybutene or polypropylene insulating tape which has been specially processed to attain properties which are not generally found in these materials, but are required for their use in impregnated electrical cables. Chief among these properties is compatibility with impregnating oil.

Forsyth, E.B.; Muller, A.C.

1983-07-15T23:59:59.000Z

47

Process of modifying a cable end  

DOE Patents [OSTI]

End moldings for high-voltage cables are described wherein the dielectric insulator of the cable is heated and molded to conform to a desired shape. As a consequence, high quality substantially bubble-free cable connectors suitable for mating to premanufactured fittings are made. Disclosed are a method for making the cable connectors either in the field or in a factory, molds suitable for use with the method, and the molded cable connectors, themselves. 5 figs.

Roose, L.D.

1995-08-01T23:59:59.000Z

48

Fully synthetic taped insulation cables  

DOE Patents [OSTI]

A high voltage oil-impregnated electrical cable with fully polymer taped insulation operable to 765 kV. Biaxially oriented, specially processed, polyethylene, polybutene or polypropylene tape with an embossed pattern is wound in multiple layers over a conductive core with a permeable screen around the insulation. Conventional oil which closely matches the dielectric constant of the tape is used, and the cable can be impregnated after field installation because of its excellent impregnation characteristics.

Forsyth, Eric B. (Brookhaven, NY); Muller, Albert C. (Center Moriches, NY)

1984-01-01T23:59:59.000Z

49

Analysis of pressure drops under reversing flow conditions  

SciTech Connect (OSTI)

This paper examines pressure-drop data from the Reversing Flow Test Facility (RFTF) at Argonne National Laboratory (ANL). The data comprise part of an initial series of measurements conducted with pressurized helium gas under reversing flow conditions. The characteristics of fluid pressure drops in compressible, reversing flows are discussed in the paper and compared with pressure-drop measurements for steady, incompressible flows. The methodology used to calculate instantaneous mass flows in the test section of the RFTF is summarized. The measured pressure drops are analyzed in terms of their frictional and inertial components. Pressure-drop data are presented for both tubes and wire mesh regenerators over a range of flow reversal frequencies. The results are discussed with reference to other experimental data and analytical models available in the literature. 10 refs., 6 figs., 2 tabs.

Krazinski, J.L.; Holtz, R.E.; Uherka, K.L.; Lottes, P.A.

1986-01-01T23:59:59.000Z

50

Ames Lab 101: Reinventing the Power Cable  

ScienceCinema (OSTI)

Ames Laboratory researchers are working to develop new electrical power cables that are stronger and lighter than the cables currently used in the nation's power grid. Nano Tube animation by Iain Goodyear

Russell, Alan

2014-06-04T23:59:59.000Z

51

Design optimization of cable-stayed bridges  

E-Print Network [OSTI]

The goal of this thesis is to achieve a basic understanding of cable-stayed systems. Issues to be treated are the diachronic evolution of cable-stayed bridges, including the advantages, the limitations and the basic design ...

Bessas, Georgios

2006-01-01T23:59:59.000Z

52

Multi-frequency cable vibration experiments  

E-Print Network [OSTI]

A series of Multi-Frequency cable vibration experiments at Reynolds number 7600 were carried out at the MIT Tow Tank using the Virtual Cable Towing Apparatus (VCTA). Motions observed in a Direct Numerical Simulation of a ...

Wiggins, Andrew (Andrew Dale)

2005-01-01T23:59:59.000Z

53

Ames Lab 101: Reinventing the Power Cable  

SciTech Connect (OSTI)

Ames Laboratory researchers are working to develop new electrical power cables that are stronger and lighter than the cables currently used in the nation's power grid. Nano Tube animation by Iain Goodyear

Russell, Alan

2013-09-27T23:59:59.000Z

54

Assessing Deterioration of ADSS Fiber Optic Cables  

E-Print Network [OSTI]

Assessing Deterioration of ADSS Fiber Optic Cables Due to Corona Discharge Final Project Report of ADSS Fiber Optic Cables Due to Corona Discharge Final Project Report George G. Karady, Project Leader-Supporting) fiber optic cables installed on high voltage lines. The high electric field on those lines generates

55

Sintered wire annode  

DOE Patents [OSTI]

A plurality of high atomic number wires are sintered together to form a porous rod that is parted into porous disks which will be used as x-ray targets. A thermally conductive material is introduced into the pores of the rod, and when a stream of electrons impinges on the sintered wire target and generates x-rays, the heat generated by the impinging x-rays is removed by the thermally conductive material interspersed in the pores of the wires.

Falce, Louis R. (Surprise, AZ); Ives, R. Lawrence (Saratoga, CA)

2007-12-25T23:59:59.000Z

56

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

57

1998 wire development workshop proceedings  

SciTech Connect (OSTI)

This report consists of vugraphs of the presentations at the conference. The conference was divided into the following sessions: (1) First Generation Wire Development: Status and Issues; (2) First Generation Wire in Pre-Commercial Prototypes; (3) Second Generation Wire Development: Private Sector Progress and Issues; (4) Second Generation Wire Development: Federal Laboratories; and (5) Fundamental Research Issues for HTS Wire Development.

NONE

1998-04-01T23:59:59.000Z

58

Fluid dynamics of supercritical hellium within cable-in-conduit conductors. Progress report  

SciTech Connect (OSTI)

The enclosed report summarizes work carried out under DOE/MFE Support, during the past four years. Emphasis is placed on progress within the last year. Results of experiments on pressure drop and heat transfer within several Cable-in-Conduit Conductors are described. These results are compared to models for flow in similar geometrics. The work provides a basis for design of magnets using the CIC Conductor Concept.

Van Sciver, S.W.

1992-07-01T23:59:59.000Z

59

Fluid dynamics of supercritical hellium within cable-in-conduit conductors  

SciTech Connect (OSTI)

The enclosed report summarizes work carried out under DOE/MFE Support, during the past four years. Emphasis is placed on progress within the last year. Results of experiments on pressure drop and heat transfer within several Cable-in-Conduit Conductors are described. These results are compared to models for flow in similar geometrics. The work provides a basis for design of magnets using the CIC Conductor Concept.

Van Sciver, S.W.

1992-07-01T23:59:59.000Z

60

Capacitor discharge process for welding braided cable  

DOE Patents [OSTI]

A capacitor discharge process for welding a braided cable formed from a plurality of individual cable strands to a solid metallic electrically conductive member comprises the steps of: (a) preparing the electrically conductive member for welding by bevelling one of its end portions while leaving an ignition projection extending outwardly from the apex of the bevel; (b) clamping the electrically conductive member in a cathode fixture; (c) connecting the electrically conductive member clamped in the cathode fixture to a capacitor bank capable of being charged to a preselected voltage value; (d) preparing the braided cable for welding by wrapping one of its end portions with a metallic sheet to form a retaining ring operable to maintain the individual strands of the braided cable in fixed position within the retaining ring; (e) clamping the braided cable and the retaining ring as a unit in an anode fixture so that the wrapped end portion of the braided cable faces the ignition projection of the electrically conductive member; and (f) moving the cathode fixture towards the anode fixture until the ignition projection of the electrically conductive member contacts the end portion of the braided cable thereby allowing the capacitor bank to discharge through the electrically conductive member and through the braided cable and causing the electrically conductive member to be welded to the braided cable via capacitor discharge action.

Wilson, Rick D. (Corvallis, OR)

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

CABLE TECHNOLOGY LABORATORIES, INC. DETERMINATION OF THRESHOLD...  

Office of Scientific and Technical Information (OSTI)

CABLE TECHNOLOGY LABORATORIES, INC. DETERMINATION OF THRESHOLD AND MAXIMUM OPERATING ELECTRIC STRESSES FOR SELECTED HIGH VOLTAGE INSULATIONS Investigation of Aged Polymeric...

62

Microsoft Word - Cable NDE L3 milestone  

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

that can serve as key indicators of cable aging. In parallel, nondestructive evaluation (NDE) measurement methods sensitive to these conditions as well as NDE methods currently...

63

Flat-Sag Cables with Semiactive Damping 1 FLAT-SAG CABLES WITH SEMIACTIVE DAMPING  

E-Print Network [OSTI]

the previous work by adding sag, inclination, and axial flexibility to the cable model. The equations of motion by semiactive dampers for a wide range of cable sag and damper location. KEYWORDS semiactive damping, rain-wind to environmental excitations, such as rain-wind induced vibration, and support excitations. Steel cables

Johnson, Erik A.

64

Semiactive Damping of Cables with Sag 1 SEMIACTIVE DAMPING OF CABLES WITH SAG  

E-Print Network [OSTI]

the previous work by adding sag, inclination, and axial flexibility to the cable model. The equations of motion by semiactive dampers for a wide range of cable sag and damper location. KEYWORDS semiactive damping, rain-wind to environmental excitations, such as rain-wind induced vibration, and support excitations. Steel cables

Spencer Jr., B.F.

65

An Internal Coaxil Cable Seal System  

DOE Patents [OSTI]

The invention is a seal system for a coaxial cable more specifically an internal seal system placed within the coaxial cable and its constituent components. A series of seal stacks including flexible rigid rings and elastomeric rings are placed on load bearing members within the coaxial cable. The current invention is adapted to seal the annular space between the coaxial cable and an electrical contact passing there through. The coaxial cable is disposed within drilling components to transmit electrical signals between drilling components within a drill string. During oil and gas exploration, a drill string can see a range of pressures and temperatures thus resulting in multiple combinations of temperature and pressure and increasing the difficulty of creating a robust seal for all combinations. The seal system can be used in a plurality of downhole components, such as sections of pipe in a drill string, drill collars, heavy weight drill pipe, and jars.

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

2004-12-23T23:59:59.000Z

66

"Flexible aerogel as a superior thermal insulation for high temperature superconductor cable applications"  

SciTech Connect (OSTI)

High temperature superconducting (HTS) cables are an advanced technology that can both strengthen and improve the national electrical distribution infrastructure. HTS cables require sufficient cooling to overcome inherent low temperature heat loading. Heat loads are minimized by the use of cryogenic envelopes or cryostats. Cryostats require improvement in efficiency, reliability, and cost reduction to meet the demanding needs of HTS conductors (1G and 2G wires). Aspen Aerogels has developed a compression resistant aerogel thermal insulation package to replace compression sensitive multi-layer insulation (MLI), the incumbent thermal insulation, in flexible cryostats for HTS cables. Oak Ridge National Laboratory tested a prototype aerogel package in a lab-scale pipe apparatus to measure the rate of heat invasion. The lab-scale pipe test results of the aerogel solution will be presented and directly compared to MLI. A compatibility assessment of the aerogel material with HTS system components will also be presented. The aerogel thermal insulation solution presented will meet the demanding needs of HTS cables.

White, Shannon O. [Aspen Aerogel, Inc.; Demko, Jonathan A [ORNL; Tomich, A. [Aspen Aerogel, Inc.

2010-01-01T23:59:59.000Z

67

Wire Scanner Beam Profile Measurements: LANSCE Facility Beam Development  

SciTech Connect (OSTI)

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

68

Development and application of composite overhead ground wire with optical fibers  

SciTech Connect (OSTI)

A overhead ground wire composed with optical fibers has been developed, as well as the accessories and the joints. The overhead ground wire is provided with an aluminum pipe at the core thereof in which the optical fibers are inserted. The composite overhead ground wire with optical fibers was installed for the Kaga-Reinan 500 kV overhead transmission line in autumn, 1981 for the purposes of observing lightning and using as telecommunication line, as well. After the successful performance of the optical fiber, especially in view of transmission loss after installation, has been proved, the composite overhead ground wire is now being checked for the purposes as stated above. The ground wire was also installed for the Tsuruga Test Line at about the same time and investigations were started to confirm the reliability of the optical fiber to be over a long period of time under severe meteorological conditions such as strong winds and icing. The construction of the composite ground wire with optical fibers is such that the optical fibers contained therein are not restrained by the ground wire itself. This enables insertion and pulling out of optical fiber cables. Tests were conducted at certain sections of the Kaga-Reinan Line to confirm that there was no change in the performance of the optical fibers due to such operations of insertion and pulling out. This report briefly discusses the development of the composite ground wire with optical fibers, its installation and the test results.

Tsujimoto, K.; Kato, T.; Okazato, A.; Sakurada, H.

1983-05-01T23:59:59.000Z

69

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

70

Department of Mechanical Engineering Spring 2012 Synthetic Cable Termination  

E-Print Network [OSTI]

PENNSTATE Department of Mechanical Engineering Spring 2012 Synthetic Cable Termination Overview to be grasped. The methods for terminating the metallic cable will not work with the synthetic cable, so a new termination method is needed. The synthetic cable is a new design that has yet to be successfully terminated

Demirel, Melik C.

71

Condition Monitoring of Cables Task 3 Report: Condition Monitoring Techniques for Electric Cables  

SciTech Connect (OSTI)

For more than 20 years the NRC has sponsored research studying electric cable aging degradation, condition monitoring, and environmental qualification testing practices for electric cables used in nuclear power plants. This report summarizes several of the most effective and commonly used condition monitoring techniques available to detect damage and measure the extent of degradation in electric cable insulation. The technical basis for each technique is summarized, along with its application, trendability of test data, ease of performing the technique, advantages and limitations, and the usefulness of the test results to characterize and assess the condition of electric cables.

Villaran, M.; Lofaro, R.; na

2009-11-30T23:59:59.000Z

72

Tantalum rod and wire  

SciTech Connect (OSTI)

The specification covers unalloyed and alloyed tantalum rod and wire of the following grades: R05200, unalloyed tantalum (vacuum arc melt or electron beam furnace melt); R05400, unalloyed tantalum (powder metallurgy consolidation); R05255, tantalum alloy (90% Ta to 10% W). The specification includes ordering information, manufacture, chemical requirements, tensile properties, dimensional tolerances, workmanship and finish, sampling, certification, marking, and packing. (JMT)

Not Available

1981-01-01T23:59:59.000Z

73

Solid state safety jumper cables  

DOE Patents [OSTI]

Solid state jumper cables for connecting two batteries in parallel, having two bridge rectifiers for developing a reference voltage, a four-input decoder for determining which terminals are to be connected based on a comparison of the voltage at each of the four terminals to the reference voltage, and a pair of relays for effecting the correct connection depending on the determination of the decoder. No connection will be made unless only one terminal of each battery has a higher voltage than the reference voltage, indicating positive'' terminals, and one has a lower voltage than the reference voltage, indicating negative'' terminals, and that, therefore, the two high voltage terminals may be connected and the two lower voltage terminals may be connected. Current flows once the appropriate relay device is closed. The relay device is preferably a MOSFET (metal oxide semiconductor field effect transistor) combined with a series array of photodiodes that develop MOSFET gate-closing potential when the decoder output causes an LED to light.

Kronberg, J.W.

1993-02-23T23:59:59.000Z

74

Solid state safety jumper cables  

DOE Patents [OSTI]

Solid state jumper cables for connecting two batteries in parallel, having two bridge rectifiers for developing a reference voltage, a four-input decoder for determining which terminals are to be connected based on a comparison of the voltage at each of the four terminals to the reference voltage, and a pair of relays for effecting the correct connection depending on the determination of the decoder. No connection will be made unless only one terminal of each battery has a higher voltage than the reference voltage, indicating "positive" terminals, and one has a lower voltage than the reference voltage, indicating "negative" terminals, and that, therefore, the two high voltage terminals may be connected and the two lower voltage terminals may be connected. Current flows once the appropriate relay device is closed. The relay device is preferably a MOSFET (metal oxide semiconductor field effect transistor) combined with a series array of photodiodes that develop MOSFET gate-closing potential when the decoder output causes an LED to light.

Kronberg, James W. (353 Church Rd., Beech Island, SC 29841)

1993-01-01T23:59:59.000Z

75

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

76

Dual wire welding torch and method  

DOE Patents [OSTI]

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

77

Critical Current Test Facilities for LHC Superconducting NbTi Cable Strands  

E-Print Network [OSTI]

The Rutherford-type superconducting Cu/NbTi cables of the LHC accelerator are currently mass-produced by a few industrial firms. As a part of the acceptance tests, the critical current of superconducting multifilamentary wires is systematically measured on virgin strands to qualify the wires and on extracted strands to qualify the cables. For this purpose, four test stations are in operation at CERN to measure the critical current of strands at both 4.2 K and 1.9 K in magnetic fields in the 6-11 T range. The measurement setup and procedures of these facilities are reported in this article. The quality of the critical current test is guaranteed by supervising the SPC (Statistical Process Control) charts of a reference sample. The measurement repeatability and reproducibility of the stations are found to be excellent. Moreover, the measured critical current of a strand is found to be almost independent of the test station in which the measurement is performed.

Boutboul, T; Denarié, C H; Oberli, L R; Richter, D

2001-01-01T23:59:59.000Z

78

Nuclear power plant cable materials : review of qualification and currently available aging data for margin assessments in cable performance.  

SciTech Connect (OSTI)

A selective literature review was conducted to assess whether currently available accelerated aging and original qualification data could be used to establish operational margins for the continued use of cable insulation and jacketing materials in nuclear power plant environments. The materials are subject to chemical and physical degradation under extended radiationthermal- oxidative conditions. Of particular interest were the circumstances under which existing aging data could be used to predict whether aged materials should pass loss of coolant accident (LOCA) performance requirements. Original LOCA qualification testing usually involved accelerated aging simulations of the 40-year expected ambient aging conditions followed by a LOCA simulation. The accelerated aging simulations were conducted under rapid accelerated aging conditions that did not account for many of the known limitations in accelerated polymer aging and therefore did not correctly simulate actual aging conditions. These highly accelerated aging conditions resulted in insulation materials with mostlyinert' aging processes as well as jacket materials where oxidative damage dropped quickly away from the air-exposed outside jacket surface. Therefore, for most LOCA performance predictions, testing appears to have relied upon heterogeneous aging behavior with oxidation often limited to the exterior of the cable cross-section - a situation which is not comparable with the nearly homogenous oxidative aging that will occur over decades under low dose rate and low temperature plant conditions. The historical aging conditions are therefore insufficient to determine with reasonable confidence the remaining operational margins for these materials. This does not necessarily imply that the existing 40-year-old materials would fail if LOCA conditions occurred, but rather that unambiguous statements about the current aging state and anticipated LOCA performance cannot be provided based on original qualification testing data alone. The non-availability of conclusive predictions for the aging conditions of 40-year-old cables implies that the same levels of uncertainty will remain for any re-qualification or extended operation of these cables. The highly variable aging behavior of the range of materials employed also implies that simple, standardized aging tests are not sufficient to provide the required aging data and performance predictions for all materials. It is recommended that focused studies be conducted that would yield the material aging parameters needed to predict aging behaviors under low dose, low temperature plant equivalent conditions and that appropriately aged specimens be prepared that would mimic oxidatively-aged 40- to 60- year-old materials for confirmatory LOCA performance testing. This study concludes that it is not sufficient to expose materials to rapid, high radiation and high temperature levels with subsequent LOCA qualification testing in order to predictively quantify safety margins of existing infrastructure with regard to LOCA performance. We need to better understand how cable jacketing and insulation materials have degraded over decades of power plant operation and how this aging history relates to service life prediction and the performance of existing equipment to withstand a LOCA situation.

Celina, Mathias Christopher; Gillen, Kenneth Todd; Lindgren, Eric Richard

2013-05-01T23:59:59.000Z

79

Doc 2136-D01 Rev E 1/24/02 If other laser diode mounts are used, connect the laser diode and, if provided, the photodiode with shielded cables to  

E-Print Network [OSTI]

, if provided, the photodiode with shielded cables to "LD OUTPUT" (5) according to the pin assignment shown is at ground) 3 ground for the laser diode photodiode: 2 photodiode cathode 4 photodiode anode Fig. 2.3 Pin by connecting Pin 1 to Pin 5 with a wire as shown in Fig. 2.4. Connecting the laser diode and photodiode Connect

La Rosa, Andres H.

80

E-Print Network 3.0 - albany hts cable Sample Search Results  

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

TechnologyTechnology Summary: Power CablesHTS Electric Power Cables 500 m Cable Test Site in500 m Cable Test Site in Yokosuka... Yokosuka, Japan, Japan 12;2222 HTS...

Note: This page contains sample records for the topic "drop cable 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

HTS Cable Projects | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power.pdf11-161-LNG | Department ofHTS Cable Projects HTS Cable Projects Fact sheet describing

82

An Energy Conservation Program at a Large Cable Manufacturing Plant  

E-Print Network [OSTI]

The Atlanta Works is the largest telephone cable manufacturing plant in the world plus the manufacturing center for fiber optic cable for the Western Electric Company and exemplifies how an effective energy conservation program can work...

Reale, P. J.

1983-01-01T23:59:59.000Z

83

Marine vertical cable multiple attenuation beyond up/down separation  

E-Print Network [OSTI]

Marine vertical cable acquisition is an emerging technology. It represents an alternative to surface seismic acquisition in areas congested by platforms or other obstacles. The vertical cable acquisition consists of recording pressure at several...

Tran, Andre

2001-01-01T23:59:59.000Z

84

Communications Copper Horizontal Cable 27 15 13-1 SECTION 27 15 13  

E-Print Network [OSTI]

/TIA-568-C.2. C. Cable shall be listed by a Nationally Recognized Testing Laboratory (NRTL). D. Cable

Dawson, Clint N.

85

Non-Wires  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohn CyberNeutronsNewNewsNickNiriConnecticutNon-Wires

86

Cable attachment for a radioactive brachytherapy source capsule  

DOE Patents [OSTI]

In cancer brachytherapy treatment, a small californium-252 neutron source capsule is attached to a guide cable using a modified crimping technique. The guide cable has a solid cylindrical end, and the attachment employs circumferential grooves micromachined in the solid cable end. The attachment was designed and tested, and hardware fabricated for use inside a radioactive hot cell. A welding step typically required in other cable attachments is avoided.

Gross, Ian G; Pierce, Larry A

2006-07-18T23:59:59.000Z

87

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

88

Microminiature coaxial cable and methods manufacture  

DOE Patents [OSTI]

A coaxial cable is provided having a ribbon inner conductor surrounded by a dielectric and a circumferential conductor. The coaxial cable may be microminiature comprising a very thin ribbon strip conductor from between 5 to 15 [mu]m thick and from 150 to 200 [mu]m wide, having a surrounding foamed dielectric or parylene applied thereon by a vapor plasma process and an outer conductor of an adhering high conductivity metal vacuum deposited on the dielectric. Alternately the foam dielectric embodiment may have a contiguous parylene coating applied adjacent the inner conductor or the outer conductor or both. Also, the cable may be fabricated by forming a thin ribbon of strip conductive material into an inner conductor, applying thereabout a dielectric by spraying on a solution of polystyrene and polyethylene and then vacuum depositing and adhering high conductivity metal about the dielectric. The cable strength may be increased by adding glass microfilament fibers or glass microballoons to the solution of polystyrene and polyethylene. Further, the outer conductive layer may be applied by electroless deposition in an aqueous solution rather than by vacuum deposition. A thin coating of parylene is preferably applied to the outer conductor to prevent its oxidation and inhibit mechanical abrasion. 2 figs.

Bongianni, W.L.

1986-04-08T23:59:59.000Z

89

Microminiature coaxial cable and methods of manufacture  

DOE Patents [OSTI]

A coaxial cable is provided having a ribbon inner conductor surrounded by a dielectric and a circumferential conductor. The coaxial cable may be microminiature comprising a very thin ribbon strip conductor from between 5 to 15 ..mu..m thick and from 150 to 200 ..mu..m wide, having a surrounding foamed dielectric or parylene applied thereon by a vapor plasma process and an outer conductor of an adhering high conductivity metal vacuum deposited on the dieleectric. Alternately the foam dielectric embodiment may have a contiguous parylene coating applied adjacent the inner conductor or the outer conductor or both. Also, the cable may be fabricated by forming a thin ribbon of strip conductive material into an inner conductor, applying thereabout a dielectric by spraying on a solution of polystyrene and polyethylene and then vacuum depositing and adhering high conductivity metal about the dielectric. The cable strength may be increased by adding glass microfilament fibers or glass microballoons to the solution of polystyrene and polyethylene. Further, the outer conductive layer may be applied by electroless deposition in an aqueous solution rather than by vacuum deposition. A thin coating of parylene is preferably applied to the outer conductor to prevent its oxidation and inhibit mechanical abrasion.

Bongianni, W.L.

1983-12-29T23:59:59.000Z

90

Microminiature coaxial cable and method of manufacture  

DOE Patents [OSTI]

A coaxial cable is provided having a ribbon inner conductor surrounded by a dielectric and a circumferential conductor. The coaxial cable may be microminiature comprising a very thin ribbon strip conductor from between 5 to 15 .mu.m thick and from 150 to 200 .mu.m wide, having a surrounding foamed dielectric or parylene applied thereon by a vapor plasma process and an outer conductor of an adhering high conductivity metal vacuum deposited on the dielectric. Alternately, the foam dielectric embodiment may have a contiguous parylene coating applied adjacent the inner conductor or the outer conductor or both. Also, the cable may be fabricated by forming a thin ribbon of strip conductive material into an inner conductor, applying thereabout a dielectric by spraying on a solution of polystyrene and polyethylene and then vacuum depositing and adhering high conductivity metal about the dielectric. The cable strength may be increased by adding glass microfilament fibers or glass microspheres to the solution of polystyrene and polyethylene. Further, the outer conductive layer may be applied by electroless deposition in an aqueous solution rather than by vacuum deposition. A thin coating of parylene is preferably applied to the outer conductor to prevent its oxidation and inhibit mechanical abrasion.

Bongianni, Wayne L. (Los Alamos, NM)

1989-01-01T23:59:59.000Z

91

Microminiature coaxial cable and method of manufacture  

DOE Patents [OSTI]

A coaxial cable is provided having a ribbon inner conductor surrounded by a dielectric and a circumferential conductor. The coaxial cable may be microminiature comprising a very thin ribbon strip conductor from between 5 to 15 [mu]m thick and from 150 to 200 [mu]m wide, having a surrounding foamed dielectric or parylene applied thereon by a vapor plasma process and an outer conductor of an adhering high conductivity metal vacuum deposited on the dielectric. Alternately, the foam dielectric embodiment may have a contiguous parylene coating applied adjacent the inner conductor or the outer conductor or both. Also, the cable may be fabricated by forming a thin ribbon of strip conductive material into an inner conductor, applying thereabout a dielectric by spraying on a solution of polystyrene and polyethylene and then vacuum depositing and adhering high conductivity metal about the dielectric. The cable strength may be increased by adding glass microfilament fibers or glass microspheres to the solution of polystyrene and polyethylene. Further, the outer conductive layer may be applied by electroless deposition in an aqueous solution rather than by vacuum deposition. A thin coating of parylene is preferably applied to the outer conductor to prevent its oxidation and inhibit mechanical abrasion. 2 figs.

Bongianni, W.L.

1989-03-28T23:59:59.000Z

92

Microminiature coaxial cable and methods manufacture  

DOE Patents [OSTI]

A coaxial cable is provided having a ribbon inner conductor surrounded by a dielectric and a circumferential conductor. The coaxial cable may be microminiature comprising a very thin ribbon strip conductor from between 5 to 15 .mu.m thick and from 150 to 200 .mu.m wide, having a surrounding foamed dielectric or parylene applied thereon by a vapor plasma process and an outer conductor of an adhering high conductivity metal vacuum deposited on the dielectric. Alternately the foam dielectric embodiment may have a contiguous parylene coating applied adjacent the inner conductor or the outer conductor or both. Also, the cable may be fabricated by forming a thin ribbon of strip conductive material into an inner conductor, applying thereabout a dielectric by spraying on a solution of polystyrene and polyethylene and then vacuum depositing and adhering high conductivity metal about the dielectric. The cable strength may be increased by adding glass microfilament fibers or glass microballoons to the solution of polystyrene and polyethylene. Further, the outer conductive layer may be applied by electroless deposition in an aqueous solution rather than by vacuum deposition. A thin coating of parylene is preferably applied to the outer conductor to prevent its oxidation and inhibit mechanical abrasion.

Bongianni, Wayne L. (408 Colleen Ct., Los Alamos, NM 87544)

1986-01-01T23:59:59.000Z

93

Tungsten wire for incandescent lamps  

SciTech Connect (OSTI)

Tungsten wire for incandescent lamp filaments must operate at high temperatures and for long times. To meet these requirements, the grain morphology of the wire must be controlled to reduce the propensity for grain boundary sliding. The morphology is a function of the distribution of very small pockets of potassium in the wire and the mechanical processing from ingot to wire. The behavior of the filament is directly related to the grain morphology. This paper describes the mechanism by which the potassium is incorporated into and distributed in the ingot. The elongation and spheroidization of the bubbles during hot rolling and swaging is also examined and related to the grain morphology of wire. Some indications of the relationship between grain morphology and filament behavior are also given.

Walter, J.L.; Briant, C.L. (General Electric Corporate Research and Development, Schenectady, NY (USA))

1990-09-01T23:59:59.000Z

94

Development length of three-eights inch diameter, seven-wire concrete prestressing cable  

E-Print Network [OSTI]

trar sfcr len?th& b&u'L it shou1c. no v be used f or c csi+ linc?conor c I c Blc mi&er s in v hich 'I ran, ? fe &" lc&x', I h is c emtical, 1'he above &eo?LLoned eouatio?s ~?ive on1y apozoxirz&te ind. i. cat:i ons of nec:e &sary trarcsfer ic:n ~ Lh...

George, Jimmy Donnell

1968-01-01T23:59:59.000Z

95

HAWC Calibration: Cabling Experience from HAWC30  

E-Print Network [OSTI]

to the 2"-PVC conduits (TWO on each WCD tank: one for fibers and one for HV cables) are through the field-field-enclosure for the fiber connections to the 2"-PVC conduits? · And how do the CAT5 ca- bles complicate this fur- ther? HAWC) is involved and dangerous and done 4.5m in the air on a ladder! · Left: loosen the bracket securing the PVC

96

Smart Wire Grid: Resisting Expectations  

ScienceCinema (OSTI)

Smart Wire Grid's DSR technology (Discrete Series Reactor) can be quickly deployed on electrical transmission lines to create intelligent mesh networks capable of quickly rerouting electricity to get power where and when it's needed the most. With their recent ARPA-E funding, Smart Wire Grid has been able to move from prototype and field testing to building out a US manufacturing operation in just under a year.

Ramsay, Stewart; Lowe, DeJim

2014-04-09T23:59:59.000Z

97

Method of manufacturing superconductor wire  

DOE Patents [OSTI]

A method for forming Nb.sub.3Sn superconducting wire is provided. The method employs a powder-in-tube process using a high-tin intermetallic compound, such as MnSn.sub.2, for producing the Nb.sub.3Sn. The use of a high-tin intermetallic compound enables the process to perform hot extrusion without melting the high-tin intermetallic compound. Alternatively, the method may entail drawing the wire without hot extrusion.

Motowidlo, Leszek

2014-09-16T23:59:59.000Z

98

Smart Wire Grid: Resisting Expectations  

SciTech Connect (OSTI)

Smart Wire Grid's DSR technology (Discrete Series Reactor) can be quickly deployed on electrical transmission lines to create intelligent mesh networks capable of quickly rerouting electricity to get power where and when it's needed the most. With their recent ARPA-E funding, Smart Wire Grid has been able to move from prototype and field testing to building out a US manufacturing operation in just under a year.

Ramsay, Stewart; Lowe, DeJim

2014-03-03T23:59:59.000Z

99

HTS Wire Development Workshop: Proceedings  

SciTech Connect (OSTI)

The 1994 High-Temperature Superconducting Wire Development Workshop was held on February 16--17 at the St. Petersburg Hilton and Towers in St. Petersburg, Florida. The meeting was hosted by Florida Power Corporation and sponsored by the US Department of Energy`s Superconductivity Program for Electric Power Systems. The meeting focused on recent high-temperature superconducting wire development activities in the Department of Energy`s Superconductivity Systems program. The meeting opened with a general discussion on the needs and benefits of superconductivity from a utility perspective, the US global competitiveness position, and an outlook on the overall prospects of wire development. The meeting then focused on four important technology areas: Wire characterization: issues and needs; technology for overcoming barriers: weak links and flux pinning; manufacturing issues for long wire lengths; and physical properties of HTS coils. Following in-depth presentations, working groups were formed in each technology area to discuss the most important current research and development issues. The working groups identified research areas that have the potential for greatly enhancing the wire development effort. These areas are discussed in the summary reports from each of the working groups. This document is a compilation of the workshop proceedings including all general session presentations and summary reports from the working groups.

Not Available

1994-07-01T23:59:59.000Z

100

Choosing Power Cables on the Basis of Energy Economics  

E-Print Network [OSTI]

Technology Conference Houston, TX, April 13-16, 1980 class. CABLE LOSSES AND OPERATING TEMPERATURE If copper losses predominate total losses per unit length are given by q = 3I2r (1) for a three conductor cable where q is cable loss in watts per unit... 1,068 1,641 2,232 2,745 3,360 4,182 5,220 TABLE 1 (Continued) Cable Size Resistance Cable Circular Mil s Ampacity at 65?C n/ Cost $/ Cable # Or (AWG) (amperes) 1000 ft 1000 ft 250,000 6,2109 273 0.050 10 0.042 7,485300,000 304 350,000 8...

Dimachkieh, S.; Brown, D. R.

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

Armored spring-core superconducting cable and method of construction  

DOE Patents [OSTI]

An armored spring-core superconducting cable (12) is provided. The armored spring-core superconducting cable (12) may include a spring-core (20), at least one superconducting strand (24) wound onto the spring-core (20), and an armored shell (22) that encases the superconducting strands (24). The spring-core (20) is generally a perforated tube that allows purge gases and cryogenic liquids to be circulated through the armored superconducting cable (12), as well as managing the internal stresses within the armored spring-core superconducting cable (12). The armored shell (22) manages the external stresses of the armored spring-core superconducting cable (12) to protect the fragile superconducting strands (24). The armored spring-core superconducting cable (12) may also include a conductive jacket (34) formed outwardly of the armored shell (22).

McIntyre, Peter M. (611 Montclair, College Station, TX 77840); Soika, Rainer H. (1 Hensel, #X4C, College Station, TX 77840)

2002-01-01T23:59:59.000Z

102

x.0 Handling of White SVT Cables (SVT Excess Cables) before and during Withdrawing of Endcap In general we (UC Santa Cruz) prefer to do all handling of the white SVT cables necessary to withdraw and reinsert  

E-Print Network [OSTI]

13 x.0 Handling of White SVT Cables (SVT Excess Cables) before and during Withdrawing of Endcap In general we (UC Santa Cruz) prefer to do all handling of the white SVT cables necessary to withdraw@scipp.ucsc.edu, office in SC: (831) 459­3337 , extn. at SLAC: 8561. The white SVT cables consist of two parts

California at Santa Cruz, University of

103

Robotic Platform for Monitoring Underground Cable Systems  

E-Print Network [OSTI]

created by subsidiary equipment and negotiate transmission towers using an arc-shaped arm that acts. to traverse and monitor fiber-optic overhead ground transmission wires (OPGW) above 66kV power transmission in Japan to inspect the power transmission lines in 1991 [6]. The robot could maneuver around obstructions

Mamishev, Alexander

104

Wire Scanner Beam Profile Measurements for the LANSCE Facility  

SciTech Connect (OSTI)

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

105

aerial cable facility: Topics by E-print Network  

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

system demonstrate the ability of the designed platform-- Autonomous monitoring, mobile robot, crawler, sensors, underground cables, aging status. I. INTRODUCTION he Mamishev,...

106

A Superconducting transformer system for high current cable testing  

E-Print Network [OSTI]

A Superconducting Transformer System for High Current Cablea Direct-Current (DC) superconducting transformer system forhigh current test of superconducting cables. The transformer

Godeke, A.

2010-01-01T23:59:59.000Z

107

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

SciTech Connect (OSTI)

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

108

Heat transfer in forced cooled cables  

SciTech Connect (OSTI)

This paper presents a calculation method for current continuous rating of cable lines that considers the actual environment conditions, such as different types of soil, change of geometrical disposition, etc... This method is based on the resolution in terms of limit differences. The results of a full scale experimental installation, were used to check the theoretical model precision. The comparison between the measured and calculated rise show a difference of 5% in general and a maximum of 7% which may be considered acceptable for line design.

Lombardi, A.; Donazzi, F. (Societa Cavi Pirelli); Taralli, C.; Tencer, C.; Lima, A.J.O. (Pirelli S.A. Cia Indl Brasileira (BR))

1990-01-01T23:59:59.000Z

109

Plasma arc torch with coaxial wire feed  

DOE Patents [OSTI]

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

110

Drop History? No! | Jefferson Lab  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phasesDataTranslocationDiurnalCommittee Draftfor $1.14 Per GallontheDrop

111

Microsoft Word - CFN_CSD_Cabling_Infrastructure_v1.1.docx  

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

commissioning of the cabling systems above are also in the scope of this contract. The supplier shall provide a warranty for the installed cabling systems. Cable trays are out...

112

Drop short control of electrode gap  

DOE Patents [OSTI]

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

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

1986-01-01T23:59:59.000Z

113

Drop shaping by laser-pulse impact  

E-Print Network [OSTI]

We study the hydrodynamic response of a falling drop hit by a laser pulse. Combining high-speed with stroboscopic imaging we report that a millimeter-sized dyed water drop hit by a milli-Joule nanosecond laser-pulse deforms and propels forward at several meters per second, until it eventually fragments. We show that the drop motion results from the recoil momentum imparted at the drop surface by water vaporization. We measure the propulsion speed and the time-deformation law of the drop, complemented by boundary integral simulations. We explain the drop propulsion and shaping in terms of the laser pulse energy and drop surface tension. These findings are crucial for the generation of extreme ultraviolet (EUV) light in lithography machines.

Klein, Alexander L; Visser, Claas Willem; Lhuissier, Henri; Sun, Chao; Snoeijer, Jacco H; Villermaux, Emmanuel; Lohse, Detlef; Gelderblom, Hanneke

2015-01-01T23:59:59.000Z

114

UITV University of Iowa Cable Television ITS VIDEO SERVICES  

E-Print Network [OSTI]

UITV ­ University of Iowa Cable Television ITS VIDEO SERVICES 1 UITV Telecommunication and Network Services ITS Video Services 23 Lindquist Center 319-335-5898 UITV, University of Iowa Cable Television Operations Report Calendar Year 2006 February 12, 2007 ­ Michael J. McBride, Video Services Program Manager

115

Critical Current Measurements of the Main LHC Superconducting Cables  

E-Print Network [OSTI]

For the main dipole and quadrupole magnets of the LHC, CERN has ordered from industry about 7000 km of superconducting Nb-Ti Rutherford type cables, delivered between 1999 and 2005. The strands of these cables are produced by six different companies, and cabled on five different machines. In the framework of the US contribution to the LHC, BNL has been testing and analyzing the electrical properties of samples of these cables. The main purpose of these tests was to qualify the critical current of the entire cable production in the frame of the quality assurance program implemented by CERN to assure the overall strand and cable performances. In total more than 2100 cable samples have been evaluated at 4.3 K in terms of critical current $I_{C}$, n-value and the residual resistance ratio, RRR. This paper will present an overview of the results, and show the correlations of the critical current and n-value between virgin strands, extracted strands, and cables. Also described are correlations of $I_{C}$ measured a...

Verweij, A P

2007-01-01T23:59:59.000Z

116

Microsoft Word - SAND2013-2448P - FY13Q2 Field Aged Cable Assesment...  

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

but could be confirmed at a later date) cable (bonded jacketinsulation) from the Zion Nuclear Power Station. Physical property testing was performed on the as received cables....

117

Field corrosion testing and performance of cable shielding materials in soils  

SciTech Connect (OSTI)

This article discusses the importance of corrosion resistance in cable-shielding materials, describes the mechanisms of shielding corrosion that occur in buried telephone cable, and evaluates the results of the six-year REA Horry Cooperative buried telephone cable corrosion test. In this study, both active and static cables were included. Withdrawals were made over a six-year period. These cables were evaluated for cable-shielding corrosion. Special attention was paid to the comparative behavior of active and static cables. Results indicate that steel shieldings are most susceptible to the effects of alternating current (AC) in active cables. Results of a wide range of shieldings are presented and evaluated.

Haynes, G.; Baboian, R. (Texas Instruments Inc., Electrochemical and Corrosion Lab., 34 Forest St., Mail Station 10-13, Attleboro, MA (US))

1989-09-01T23:59:59.000Z

118

E-Print Network 3.0 - actin cable architecture Sample Search...  

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

cable architecture Search Powered by Explorit Topic List Advanced Search Sample search results for: actin cable architecture Page: << < 1 2 3 4 5 > >> 1 Journal of Integrative...

119

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

120

Spectroscopic properties of colloidal indium phosphide quantum wires  

E-Print Network [OSTI]

Wires Fudong Wang, §‡ Heng Yu, §† Jingbo Li, ?? QinglingQuantum Wires Fudong Wang, Heng Yu, Jingbo Li, Qingling

Weng, Fudong

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

Policy for Dropped/Excused Assignments  

E-Print Network [OSTI]

Policy for Dropped and Excused Quizzes/Homework. • QUIZZES/HOMEWORK. On average, students can expect about 1 quiz and 3 homework assignments per

Devlin, Patrick M

2015-01-01T23:59:59.000Z

122

Banner course drop/add instructions  

E-Print Network [OSTI]

To travel to a specific topic, please click its corresponding page number. How to Drop/Add a Class ................................................... 2. Getting Started .

skorty

2008-07-28T23:59:59.000Z

123

Pressure Drop in a Pebble Bed Reactor  

E-Print Network [OSTI]

Pressure drops over a packed bed of pebble bed reactor type are investigated. Measurement of porosity and pressure drop over the bed were carried out in a cylindrical packed bed facility. Air and water were used for working fluids. There are several...

Kang, Changwoo

2011-10-21T23:59:59.000Z

124

Condensation on Surface Energy Gradient Shifts Drop Size Distribution toward Small Drops  

E-Print Network [OSTI]

Condensation on Surface Energy Gradient Shifts Drop Size Distribution toward Small Drops Ashley M condensation from vapor onto a cooled surface, distributions of drops evolve by nucleation, growth is condensed onto a horizontally oriented surface that has been treated by silanization to deliver either

Daniel, Susan

125

Sintered wire cesium dispenser photocathode  

DOE Patents [OSTI]

A photoelectric cathode has a work function lowering material such as cesium placed into an enclosure which couples a thermal energy from a heater to the work function lowering material. The enclosure directs the work function lowering material in vapor form through a low diffusion layer, through a free space layer, and through a uniform porosity layer, one side of which also forms a photoelectric cathode surface. The low diffusion layer may be formed from sintered powdered metal, such as tungsten, and the uniform porosity layer may be formed from wires which are sintered together to form pores between the wires which are continuous from the a back surface to a front surface which is also the photoelectric surface.

Montgomery, Eric J; Ives, R. Lawrence; Falce, Louis R

2014-03-04T23:59:59.000Z

126

An Internal Coaxial Cable Electrical Connector For Use In Downhole Tools  

DOE Patents [OSTI]

A coaxial cable electrical connector more specifically an internal coaxial cable connector placed within a coaxial cable and its constituent components. A coaxial cable connector is in electrical communcation with an inductive transformer and a coaxial cable. The connector is in electrical communication with the outer housing of the inductive transfonner. A generally coaxial center conductor, a portion of which could be the coil in the inductive transformer, passes through the connector, is electrically insulated from the connector, and is in electrical communication with the conductive care of the coaxial cable. A plurality of bulbous pliant tabs on the coaxial cable connector mechanically engage the inside diameter of the coaxial cable thus grounding the transformer to the coaxial cable. The coaxial cable and inductive transformer are disposed within downhole tools to transmit electrical signals between downhole tools within a drill string.

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

2005-11-29T23:59:59.000Z

127

Determining Remaining Useful Life of Aging Cables in Nuclear...  

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

3624 Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants - Interim Status for FY2014 Milestone Report M3LW-140R04022 September 2014 KL Simmons AM Jones LS...

128

Correlation of electrical reactor cable failure with materials degradation  

SciTech Connect (OSTI)

Complete circuit failure (shortout) of electrical cables typically used in nuclear power plant containments is investigated. Failure modes are correlated with the mechanical deterioration of the elastomeric cable materials. It is found that for normal reactor operation, electrical cables are reliable and safe over very long periods. During high temperature excursions, however, cables pulled across corners under high stress may short out due to conductor creep. Severe cracking will occur in short times during high temperatures (>150/sup 0/C) and in times of the order of years at elevated temperatures (100/sup 0/C to 140/sup 0/C). A theoretical treatment of stress distribution responsible for creep and for cracking by J.E. Reaugh of Science Applications, Inc. is contained in the Appendix. 29 refs., 32 figs.

Stuetzer, O.M.

1986-03-01T23:59:59.000Z

129

The Electrical Resistance of Rutherford-Type Superconducting Cable Splices  

E-Print Network [OSTI]

The electrical resistance of Large Hadron Collider main busbar cable lap splices produced by soft soldering has been measured with two independent methods as a function of intercable contact area and for splices made of cables with various defects. For defect-free lap splices, the resistance increases from 0.3 to 10 n? (at 4.3 K in self-field) when reducing the cable overlap length from 120 to 3 mm, as expected assuming that the resistance is inversely proportional to the intercable contact area. The resistance of bridge splices that connect side-by-side cables can be predicted from the lap splice resistances and the overlap areas involved.

Heck, C; Fleiter, J; Bottura, L

2015-01-01T23:59:59.000Z

130

Wave excited cable mooring dynamics by modal analysis  

E-Print Network [OSTI]

klAVE EXCITED CABLE MOORING DYNAMICS BY MODAL ANALYSIS A Thesis RICHARD EARL DAVIS Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1977 Major... Subject: Civil Engineering WAVE EXCITED CABLE MOORING DYNAMICS BY MODAL ANALYSIS A Thesis by RICHARD EARL DAVIS Approved as to style and content by: (:( '. t(( (Co ? Chairman of Committee) 0~s (Co-Chairnin+of Committee) (Head of' Departme t...

Davis, Richard Earl

2012-06-07T23:59:59.000Z

131

Triaxial HTS Cable for the AEP Bixby Project  

SciTech Connect (OSTI)

Ultera has installed a single 200-meter long high temperature superconducting (HTS) 3-phase triaxial design cable at the American Electric Power (AEP) Bixby substation in Columbus, Ohio. The cable connects a 132/13.8 kV transformer to the distribution switchgear serving seven outgoing circuits. It was designed to carry 3000 Arms. Testing of 3- to 5-meter length prototype cables, including a 5-meter prototype with full scale terminations tested at ORNL was conducted prior to the manufacture and installation of the AEP triaxial cable. These prototypes were used to demonstrate the crucial operating conditions including steady state operation at the 3000 Arms design current, high voltage operation, high voltage withstand and 110 kV impulse, and overcurrent fault capability. A summary of the results from the thermal analysis and testing conducted by Ultera and ORNL will be presented. Some analysis of the cable thermal-hydraulic response based on the testing that were used to determine some of the cable cryogenic system requirements are also presented.

Demko, Jonathan A [ORNL; Gouge, Michael J [ORNL; Lindsay, David T [ORNL; Roden, Mark L [ORNL; Tolbert, Jerry Carlton [ORNL

2007-01-01T23:59:59.000Z

132

Cost-Effective Cable Insulation: Nanoclay Reinforced Ethylene-Propylene-Rubber for Low-Cost HVDC Cabling  

SciTech Connect (OSTI)

GENI Project: GE is developing new, low-cost insulation for high-voltage direct current (HVDC) electricity transmission cables. The current material used to insulate HVDC transmission cables is very expensive and can account for as much as 1/3 of the total cost of a high-voltage transmission system. GE is embedding nanomaterials into specialty rubber to create its insulation. Not only are these materials less expensive than those used in conventional HVDC insulation, but also they will help suppress excess charge accumulation. The excess charge left behind on a cable poses a major challenge for high-voltage insulation—if it’s not kept to a low level, it could ultimately lead the insulation to fail. GE’s low-cost insulation is compatible with existing U.S. cable manufacturing processes, further enhancing its cost effectiveness.

None

2012-02-24T23:59:59.000Z

133

Wire codes, magnetic fields, and childhood cancer  

SciTech Connect (OSTI)

Childhood cancer has been modestly associated with wire codes, an exposure surrogate for power frequency magnetic fields, but less consistently with measured fields. The authors analyzed data on the population distribution of wire codes and their relationship with several measured magnetic field metrics. In a given geographic area, there is a marked trend for decreased prevalence from low to high wire code categories, but there are differences between areas. For average measured fields, there is a positive relationship between the mean of the distributions and wire codes but a large overlap among the categories. Better discrimination is obtained for the extremes of the measurement values when comparing the highest and the lowest wire code categories. Instability of measurements, intermittent fields, or other exposure conditions do not appear to provide a viable explanation for the differences between wire codes and magnetic fields with respect to the strength and consistency of their respective association with childhood cancer.

Kheifets, L.I.; Kavet, R.; Sussman, S.S. [Electric Power Research Inst., Palo Alto, CA (United States)] [Electric Power Research Inst., Palo Alto, CA (United States)

1997-05-01T23:59:59.000Z

134

E-Print Network 3.0 - automated wire tension Sample Search Results  

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

Summary: : Wire diameter, Linear density of the wire, Young's modulus, Yield tension, Creep, Surface... to cut wire to a 1-m length. An error in wire length will...

135

Thin californium-containing radioactive source wires  

DOE Patents [OSTI]

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

136

Processing A Printed Wiring Board By Single Bath Electrodeposition  

SciTech Connect (OSTI)

A method of processing a printed wiring board by single bath electrodeposition. Initial processing steps are implemented on the printed wiring board. Copper is plated on the printed wiring board from a bath containing nickel and copper. Nickel is plated on the printed wiring board from the bath containing nickel and copper and final processing steps are implemented on the printed wiring board.

Meltzer, Michael P. (Oakland, CA); Steffani, Christopher P. (Livermore, CA); Gonfiotti, Ray A. (Livermore, CA)

2003-04-15T23:59:59.000Z

137

Processing a printed wiring board by single bath electrodeposition  

SciTech Connect (OSTI)

A method of processing a printed wiring board. Initial processing steps are implemented on the printed wiring board. Copper is plated on the printed wiring board from a bath containing nickel and copper. Nickel is plated on the printed wiring board from a bath containing nickel and copper and final processing steps are implemented on the printed wiring board.

Meltzer, Michael P. (Oakland, CA); Steffani, Christopher P. (Livermore, CA); Gonfiotti, Ray A. (Livermore, CA)

2010-12-07T23:59:59.000Z

138

active drop counting: Topics by E-print Network  

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

new stain morphologies left by drying drops. Julian Freed-Brown 2014-10-09 52 A kinematic wave theory of capacity drop Mathematical Physics (arXiv) Summary: Capacity drop...

139

Nuclear Energy Plant Optimization (NEPO) final report on aging and condition monitoring of low-voltage cable materials.  

SciTech Connect (OSTI)

This report summarizes results generated on a 5-year cable-aging program that constituted part of the Nuclear Energy Plant Optimization (NEPO) program, an effort cosponsored by the U. S. Department of Energy (DOE) and the Electric Power Research Institute (EPRI). The NEPO cable-aging effort concentrated on two important issues involving the development of better lifetime prediction methods as well as the development and testing of novel cable condition-monitoring (CM) techniques. To address improved life prediction methods, we first describe the use of time-temperature superposition principles, indicating how this approach improves the testing of the Arrhenius model by utilizing all of the experimentally generated data instead of a few selected and processed data points. Although reasonable superposition is often found, we show several cases where non-superposition is evident, a situation that violates the constant acceleration assumption normally used in accelerated aging studies. Long-term aging results over extended temperature ranges allow us to show that curvature in Arrhenius plots for elongation is a common occurrence. In all cases the curvature results in a lowering of the Arrhenius activation energy at lower temperatures implying that typical extrapolation of high temperature results over-estimates material lifetimes. The long-term results also allow us to test the significance of extrapolating through the crystalline melting point of semi-crystalline materials. By utilizing ultrasensitive oxygen consumption (UOC) measurements, we show that it is possible to probe the low temperature extrapolation region normally inaccessible to conventional accelerated aging studies. This allows the quantitative testing of the often-used Arrhenius extrapolation assumption. Such testing indicates that many materials again show evidence of ''downward'' curvature (E{sub a} values drop as the aging temperature is lowered) consistent with the limited elongation results and many literature results. It is also shown how the UOC approach allows the probing of temperatures that cross through the crystalline melting point region of semi-crystalline materials such as XLPO and EPR cable insulations. New results on combined environment aging of neoprene and hypalon cable jacketing materials are presented and offer additional evidence in support of our time-temperature-dose rate (t-T-DR) superposition approach that had been used successfully in the past for such situations.

Assink, Roger Alan; Gillen, Kenneth Todd; Bernstein, Robert

2005-11-01T23:59:59.000Z

140

Ultrasonic signatures of idealized grout defects in polyethylene-sleeved cable stays  

E-Print Network [OSTI]

. These cable stays contain an annular layer of portland cement grout which surrounds the steel cable strands, and provides corrosion protection to the cables. During the grouting operation there is a possibility that voids may form in the grout layer and act...-type of cable-stayed bridge are as shown in Figure 4n". Problem Statement The typical arrangement of a cable stay consists of a steel multistrand cable encased in a polyethylene (PE) pipe, and grouted with portland cement or epoxy grout. Each strand in turn...

Nakirekanti, Sreenivas

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

Integrated head package cable carrier for a nuclear power plant  

DOE Patents [OSTI]

A cabling arrangement is provided for a nuclear reactor located within a containment. Structure inside the containment is characterized by a wall having a near side surrounding the reactor vessel defining a cavity, an operating deck outside the cavity, a sub-space below the deck and on a far side of the wall spaced from the near side, and an operating area above the deck. The arrangement includes a movable frame supporting a plurality of cables extending through the frame, each connectable at a first end to a head package on the reactor vessel and each having a second end located in the sub-space. The frame is movable, with the cables, between a first position during normal operation of the reactor when the cables are connected to the head package, located outside the sub-space proximate the head package, and a second position during refueling when the cables are disconnected from the head package, located in the sub-space. In a preferred embodiment, the frame straddles the top of the wall in a substantially horizontal orientation in the first position, pivots about an end distal from the head package to a substantially vertically oriented intermediate position, and is guided, while remaining about vertically oriented, along a track in the sub-space to the second position.

Meuschke, Robert E. (Monroeville, PA); Trombola, Daniel M. (Murrysville, PA)

1995-01-01T23:59:59.000Z

142

Lansce Wire Scanning Diagnostics Device Mechanical Design  

SciTech Connect (OSTI)

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

143

Conventional wire scanners for TESLA K. Wittenburg  

E-Print Network [OSTI]

in the undulator section. The heat load of the wires is calculated in the following for the TESLA parameters to the high heat load. At some locations in TESLA both beam diameters are larger than a few microns. The heat load defines the wire scanner parameters, mainly the scanning speed, and other limitations

144

Microfabricated wire arrays for Z-pinch.  

SciTech Connect (OSTI)

Microfabrication methods have been applied to the fabrication of wire arrays suitable for use in Z. Self-curling GaAs/AlGaAs supports were fabricated as an initial route to make small wire arrays (4mm diameter). A strain relief structure that could be integrated with the wire was designed to allow displacements of the anode/cathode connections in Z. Electroplated gold wire arrays with integrated anode/cathode bus connections were found to be sufficiently robust to allow direct handling. Platinum and copper plating processes were also investigated. A process to fabricate wire arrays on any substrate with wire thickness up to 35 microns was developed. Methods to handle and mount these arrays were developed. Fabrication of wire arrays of 20mm diameter was demonstrated, and the path to 40mm array fabrication is clear. With some final investment to show array mounting into Z hardware, the entire process to produce a microfabricated wire array will have been demonstrated.

Spahn, Olga Blum; Rowen, Adam M.; Cich, Michael Joseph; Peake, Gregory Merwin; Arrington, Christian L.; Nash, Thomas J.; Klem, John Frederick; Romero, Dustin Heinz

2008-10-01T23:59:59.000Z

145

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

146

Lifetime of oil drops pressed by buoyancy against a planar interface: Large drops  

E-Print Network [OSTI]

In a previous report [10] it was shown that emulsion stability simulations are able to reproduce the lifetime of micrometer-size drops of hexadecane pressed by buoyancy against a planar water-hexadecane interface. It was confirmed that small drops (rioil stabilized with bovine serum albumin. The potential obtained is then employed to study the lifetime of deformable drops in the range 10 \\leq ri \\leq 1000 {\\mu}m. It is established that the average lifetime of these drops can be adequately replicated using the model of truncated spheres. However, the results depend sensibly on the expressions of the initial distance of deformation and the maximum film radius used in the calculations. The set of equations adequate for large drops is not satisfactory for medium-size drops (10 \\leq ri \\leq 100 {\\mu}m), and vice versa. In the case of large particles, the increase in the interfacial area as a consequence of the deformation of the drops generates a very large repulsive barrier which opposes coalescence. Nevertheless, the buoyancy force prevails. As a consequence, it is the hydrodynamic tensor of the drops which determine the characteristic behavior of the lifetime as a function of the particle size. While the average values of the coalescence time of the drops can be justified by the mechanism of film thinning, the scattering of the experimental data of large drops cannot be rationalized using the methodology previously described. A possible explanation of this phenomenon required elaborate simulations which combine deformable drops, capillary waves, repulsive interaction forces, and a time-dependent surfactant adsorption.

Clara Rojas; Máximo García-Sucre; Germán Urbina-Villalba

2011-09-22T23:59:59.000Z

147

Apparatus producing constant cable tension for intermittent demand  

DOE Patents [OSTI]

The disclosed apparatus produces constant tension in superconducting electrical cable, or some other strand, under conditions of intermittent demand, as the cable is unreeled from a reel or reeled thereon. The apparatus comprises a pivotally supported swing frame on which the reel is rotatably supported, a rotary motor, a drive train connected between the motor and the reel and including an electrically controllable variable torque slip clutch, a servo transducer connected to the swing frame for producing servo input signals corresponding to the position thereof, a servo control system connected between the transducer and the clutch for regulating the torque transmitted by the clutch to maintain the swing frame in a predetermined position, at least one air cylinder connected to the swing frame for counteracting the tension in the cable, and pressure regulating means for supplying a constant air pressure to the cylinder to establish the constant tension in the cable, the servo system and the clutch being effective to produce torque on the reel in an amount sufficient to provide tension in the cable corresponding to the constant force exerted by the air cylinder. The drive train also preferably includes a fail-safe brake operable to its released position by electrical power in common with the servo system, for preventing rotation of the reel if there is a power failure. A shock absorber and biasing springs may also be connected to the swing frame, such springs biasing the frame toward its predetermined position. The tension in the cable may be measured by force measuring devices engageable with the bearings for the reel shaft, such bearings being supported for slight lateral movement. The reel shaft is driven by a Shmidt coupler which accommodates such movement.

Lauritzen, Ted (Lafayette, CA)

1985-01-01T23:59:59.000Z

148

Amendment to LM-07-12 for Fiber Optic Cable Trenching at the...  

Energy Savers [EERE]

Amendment to LM-07-12 for Fiber Optic Cable Trenching at the Westminster, Colorado, Office Amendment to LM-07-12 for Fiber Optic Cable Trenching at the Westminster, Colorado,...

149

Potential impacts of vertical cable seismic: modeling, resolution and multiple attenuation  

E-Print Network [OSTI]

Vertical cable seismic methods are becoming more relevant as we require high quality and high resolution seismic data in both land and marine environments. Our goal in this thesis is to demonstrate the impacts of vertical cable surveying...

Wilson, Ryan Justin

2004-09-30T23:59:59.000Z

150

Drops, Slugs, and FloodingDrops, Slugs, and Flooding in PEM Fuel Cellsin PEM Fuel Cells  

E-Print Network [OSTI]

Drops, Slugs, and FloodingDrops, Slugs, and Flooding in PEM Fuel Cellsin PEM Fuel Cells A Study Fuel CellBackground: PEM Fuel Cell Graphic by Marc Marshall, Schatz Energy Research Center http ProjectDrag Project SetupSetup MFC (H2, N2 Inputs) Bubbler Current Humidity Sensor Modified PEM Fuel Cell

Petta, Jason

151

Ultrasonic characterization of single drops of liquids  

DOE Patents [OSTI]

Ultrasonic characterization of single drops of liquids. The present invention includes the use of two closely spaced transducers, or one transducer and a closely spaced reflector plate, to form an interferometer suitable for ultrasonic characterization of droplet-size and smaller samples without the need for a container. The droplet is held between the interferometer elements, whose distance apart may be adjusted, by surface tension. The surfaces of the interferometer elements may be readily cleansed by a stream of solvent followed by purified air when it is desired to change samples. A single drop of liquid is sufficient for high-quality measurement. Examples of samples which may be investigated using the apparatus and method of the present invention include biological specimens (tear drops; blood and other body fluid samples; samples from tumors, tissues, and organs; secretions from tissues and organs; snake and bee venom, etc.) for diagnostic evaluation, samples in forensic investigations, and detection of drugs in small quantities.

Sinha, Dipen N. (Los Alamos, NM)

1998-01-01T23:59:59.000Z

152

Aalborg Universitet Line Differential Protection Scheme Modelling for Underground 420 kV Cable Systems  

E-Print Network [OSTI]

system transients, transmission cable systems, protection and HVDC-VSC. E-mail: clb@et.aau.dk. desired

Bak, Claus Leth

153

Laboratory testing of repellents to prevent nutria damage to seismic cable  

E-Print Network [OSTI]

. The adhesive used was Rhoplex AC-33, manufactured by the Rohm and Haas Company. This excellent adhesive is highly flexible, and has good weathering characteristics. The type of cable used to test the chemical repellents was two-conductor geophone strings... cable, chemically treated test cables, and internally armored cable. Bio-Met 12 and its derivation were tested in the form made available by the manufacturer. R-55 and Gustafson 425 were tested at the 10% solution of active ingredients in association...

Gunn, Scott Jeter

1980-01-01T23:59:59.000Z

154

PARTIAL DISCHARGE TESTING OF DEFECTIVE THREE-PHASE PILC CABLE UNDER RATED CONDITIONS  

E-Print Network [OSTI]

PARTIAL DISCHARGE TESTING OF DEFECTIVE THREE-PHASE PILC CABLE UNDER RATED CONDITIONS J. A. Hunter 1 lifespan. An increase in the failure rates of paper insulated lead covered (PILC) cables that make up is to document the effects of mechanical stress on the generation of partial discharge (PD) for cables of PILC

Southampton, University of

155

Plastic Deformation of 2D Crumpled Wires  

E-Print Network [OSTI]

When a single long piece of elastic wire is injected trough channels into a confining two-dimensional cavity, a complex structure of hierarchical loops is formed. In the limit of maximum packing density, these structures are described by several scaling laws. In this paper it is investigated this packing process but using plastic wires which give origin to completely irreversible structures of different morphology. In particular, it is studied experimentally the plastic deformation from circular to oblate configurations of crumpled wires, obtained by the application of an axial strain. Among other things, it is shown that in spite of plasticity, irreversibility, and very large deformations, scaling is still observed.

M A F Gomes; V P Brito; A S O Coelho; C C Donato

2008-11-17T23:59:59.000Z

156

UITV University of Iowa Cable Television ITS VIDEO SERVICES  

E-Print Network [OSTI]

UITV ­ University of Iowa Cable Television ITS VIDEO SERVICES 1 UITV Report for Fiscal Year July 1 and Student Video Productions. o Programs are received from satellite programming services, like SCOLA foreign a venue for student programming, like Daily Iowan Television News and Student Video Productions. · On July

157

Chemically etched modulation in wire radius for wire array Z-pinch perturbation studies.  

SciTech Connect (OSTI)

A technique for manufacturing wires with imposed modulation in radius with axial wavelengths as short as 1 mm is presented. Extruded aluminum 5056 with 15 {micro}m diameter was masked and chemically etched to reduce the radius by {approx}20% in selected regions. Characterized by scanning electron microscopy, the modulation in radius is a step function with a {approx}10 {micro}m wide conical transition between thick and thin segments, with some pitting in etched regions. Techniques for mounting and aligning these wires in arrays for fast z-pinch experiments will be discussed. Axially mass-modulated wire arrays of this type will allow the study of seeded Rayleigh-Taylor instabilities in z pinches, corona formation, wire initiation with varying current density in the wire core, and correlation of perturbations between adjacent wires. This tool will support magnetohydrodynamics code validation in complex three-dimensional geometries, and perhaps x-ray pulse shaping.

Bland, Simon Nicholas (Blackett Laboratory, Imperial College, London, UK); Lebedev, S. V. (Blackett Laboratory, Imperial College, London, UK); Hall, G. (Blackett Laboratory, Imperial College, London, UK); Ramacciotti, J. P. (MPCL/Ktech Corp., Albuquerque, New Mexico); Griego, A. E. (MPCL/Ktech Corp., Albuquerque, New Mexico); Lobley, Dennis Keith (MPCL/Ktech Corp., Albuquerque, New Mexico); Martin, K. L. (MPCL/Ktech Corp., Albuquerque, New Mexico); Ampleford, David J. (Blackett Laboratory, Imperial College, London, UK); McKenney, John Lee; Bott, S. C. (Blackett Laboratory, Imperial College, London, UK); Garrity, James Emmett (MPCL/Ktech Corp., Albuquerque, New Mexico); Jones, B.; Rapley, J. (Blackett Laboratory, Imperial College, London, UK); Deeney, Christopher; Palmer, J. B. A. (Blackett Laboratory, Imperial College, London, UK)

2004-06-01T23:59:59.000Z

158

A kinematic wave theory of capacity drop  

E-Print Network [OSTI]

Capacity drop at active bottlenecks is one of the most puzzling traffic phenomena, but a thorough understanding is practically important for designing variable speed limit and ramp metering strategies. In this study, we attempt to develop a simple model of capacity drop within the framework of kinematic wave theory based on the observation that capacity drop occurs when an upstream queue forms at an active bottleneck. In addition, we assume that the fundamental diagrams are continuous in steady states. This assumption is consistent with observations and can avoid unrealistic infinite characteristic wave speeds in discontinuous fundamental diagrams. A core component of the new model is an entropy condition defined by a discontinuous boundary flux function. For a lane-drop area, we demonstrate that the model is well-defined, and its Riemann problem can be uniquely solved. We theoretically discuss traffic stability with this model subject to perturbations in density, upstream demand, and downstream supply. We clarify that discontinuous flow-density relations, or so-called "discontinuous" fundamental diagrams, are caused by incomplete observations of traffic states. Theoretical results are consistent with observations in the literature and are verified by numerical simulations and empirical observations. We finally discuss potential applications and future studies.

Wen-Long Jin; Qi-Jian Gan; Jean-Patrick Lebacque

2013-10-09T23:59:59.000Z

159

Improvements to Existing Jefferson Lab Wire Scanners  

SciTech Connect (OSTI)

This poster will detail the augmentation of selected existing CEBAF wire scanners with commercially available hardware, PMTs, and self created software in order to improve the scanners both in function and utility.

McCaughan, Michael D. [JLAB; Tiefenback, Michael G. [JLAB; Turner, Dennis L. [JLAB

2013-06-01T23:59:59.000Z

160

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...

Seth, Vikram

2005-02-17T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

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

162

Performance of reduced wall EPR insulated medium voltage power cables. Pat 1: Electrical characteristics  

SciTech Connect (OSTI)

Paper insulated lead covered cables (PILC) have had a long and successful heritage. After almost 100 years, this design of cable is still in operation and continues to be manufactured. However, utilities are now looking for a reliable replacement for PILC cables. This is due to two primary reasons: (1) difficulty in installing and maintaining this type of cable and (2) increasing pressure to replace these cables due to environmental concerns. To date diameter limitations of conventional extruded dielectric cables has impeded their replacement in existing PILC conduits. This paper describes a study for the evaluation for reliably reducing the insulation thickness to achieve a lower diameter cable to effectively replace PILC cable in existing conduits. Part 1 of the investigation reviews the theory of insulation wall determination and the test program carried out to evaluate electrical performance of reduced wall EPR cables. Additionally, cable design concepts and constructions are discussed. In Part 2 the mechanical performance on conventional and reduced wall EPR insulated cables are evaluated. This is reported in a separate paper.

Cinquemani, P.L.; Wen, Y.; Kuchta, F.L.; Doench, C. [Pirelli Cable Corp., Lexington, SC (United States)] [Pirelli Cable Corp., Lexington, SC (United States)

1997-04-01T23:59:59.000Z

163

INCOMING WIRE/ACH University units expecting to receive funds via wire or ACH (Automated Clearing House) should inform the  

E-Print Network [OSTI]

INCOMING WIRE/ACH University units expecting to receive funds via wire or ACH (Automated Clearing form. The Bursar's Office cannot properly record there funds until University units provide deposit Transmittal and fax the completed form to 706-583-0832. OUTGOING WIRES University units needing to wire funds

Arnold, Jonathan

164

Static Analysis of the Lumped Mass Cable Model Using a Shooting Algorithm  

SciTech Connect (OSTI)

This paper focuses on a method to solve the static configuration for a lumped mass cable system. The method demonstrated here is intended to be used prior to performing a dynamics simulation of the cable. Conventional static analysis approaches resort to dynamics relaxation methods or root-finding algorithms (such as the Newton-Raphson method) to find the equilibrium profile. The alternative method demonstrated here is general enough for most cable configurations (slack or taut) and ranges of cable elasticity. The forces acting on the cable are attributable to elasticity, weight, buoyancy, and hydrodynamics. For the three-dimensional problem, the initial cable profile is obtained by solving three equations, regardless of the cable discretization resolution. This analysis discusses regions and circumstances under which failures in the method are encountered.

Masciola, M. D.; Nahon, M.; Driscoll, F. R.

2012-03-01T23:59:59.000Z

165

Stranded Wire With Uninsulated Strands as a Low-Cost Alternative to Litz Wire  

E-Print Network [OSTI]

the power loss, is measured experimen- tally. The analytical model is solved to get an optimal pitch, which to 100 kHz. Compared with the same transformer using a solid wire winding, about 67 percent less power loss at 100 kHz is achieved using stranded wire. Using the loss-prediction model provided in this paper

166

Ultrasonic characterization of single drops of liquids  

DOE Patents [OSTI]

Ultrasonic characterization of single drops of liquids is disclosed. The present invention includes the use of two closely spaced transducers, or one transducer and a closely spaced reflector plate, to form an interferometer suitable for ultrasonic characterization of droplet-size and smaller samples without the need for a container. The droplet is held between the interferometer elements, whose distance apart may be adjusted, by surface tension. The surfaces of the interferometer elements may be readily cleansed by a stream of solvent followed by purified air when it is desired to change samples. A single drop of liquid is sufficient for high-quality measurement. Examples of samples which may be investigated using the apparatus and method of the present invention include biological specimens (tear drops; blood and other body fluid samples; samples from tumors, tissues, and organs; secretions from tissues and organs; snake and bee venom, etc.) for diagnostic evaluation, samples in forensic investigations, and detection of drugs in small quantities. 5 figs.

Sinha, D.N.

1998-04-14T23:59:59.000Z

167

Cable Hot Shorts and Circuit Analysis in Fire Risk Assessment  

SciTech Connect (OSTI)

Under existing methods of probabilistic risk assessment (PRA), the analysis of fire-induced circuit faults has typically been conducted on a simplistic basis. In particular, those hot-short methodologies that have been applied remain controversial in regards to the scope of the assessments, the underlying methods, and the assumptions employed. To address weaknesses in fire PRA methodologies, the USNRC has initiated a fire risk analysis research program that includes a task for improving the tools for performing circuit analysis. The objective of this task is to obtain a better understanding of the mechanisms linking fire-induced cable damage to potentially risk-significant failure modes of power, control, and instrumentation cables. This paper discusses the current status of the circuit analysis task.

LaChance, Jeffrey; Nowlen, Steven P.; Wyant, Frank

1999-05-19T23:59:59.000Z

168

Method and device for tensile testing of cable bundles  

DOE Patents [OSTI]

A standard tensile test device is improved to accurately measure the mechanical properties of stranded cables, ropes, and other composite structures wherein a witness is attached to the top and bottom mounting blocks holding the cable under test. The witness is comprised of two parts: a top and a bottom rod of similar diameter with the bottom rod having a smaller diameter stem on its upper end and the top rod having a hollow opening in its lower end into which the stem fits forming a witness joint. A small gap is present between the top rod and the larger diameter portion of the bottom rod. A standard extensometer is attached to the top and bottom rods of the witness spanning this small witness gap. When a force is applied to separate the mounting blocks, the gap in the witness expands the same length that the entire test specimen is stretched.

Robertson, Lawrence M; Ardelean, Emil V; Goodding, James C; Babuska, Vit

2012-10-16T23:59:59.000Z

169

Self-excited hydrothermal waves in evaporating sessile drops   

E-Print Network [OSTI]

Pattern formation driven by the spontaneous evaporation of sessile drops of methanol, ethanol, and FC-72 using infrared thermography is observed and, in certain cases, interpreted in terms of hydrothermal waves. Both methanol and ethanol drops...

Sefiane K.; Moffat J.R.; Matar O.K.; Craster R.V.

2008-08-01T23:59:59.000Z

170

Experimental Investigation of Wind-Forced Drop Stability  

E-Print Network [OSTI]

aluminum (RA = 3.26 micrometers) floor of a tiltable wind tunnel and brought to critical conditions, when the drop begins to run downstream. Various combinations of drop size, inclination angle, and flow speed were employed. A measurement technique capable...

Schmucker, Jason

2012-10-19T23:59:59.000Z

171

Controlling drop coalescence using nano-engineered surfaces  

E-Print Network [OSTI]

The dynamics of drop coalescence are explored on micro-scale surface features for the first time. Drop coalescence is defined as a process by which two or more droplets, bubbles or particles merge during contact to form a ...

Corral, Manuel, Jr

2011-01-01T23:59:59.000Z

172

E-Print Network 3.0 - aging aircraft wiring Sample Search Results  

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

wiring of that age... in an older aircraft. 1 12; aircraft wiring, and electromagnetic interference issues. Section 4 refutes... and wet" wire were ... Source: Ladkin, Peter...

173

Delayed Frost Growth on Jumping-Drop Superhydrophobic Surfaces  

SciTech Connect (OSTI)

Self-propelled jumping drops are continuously removed from a condensing superhydrophobic surface to enable a micrometric steady-state drop size. Here, we report that subcooled condensate on a chilled superhydrophobic surface are able to repeatedly jump off the surface before heterogeneous ice nucleation occurs. Frost still forms on the superhydrophobic surface due to ice nucleation at neighboring edge defects, which eventually spreads over the entire surface via an inter-drop frost wave. The growth of this inter-drop frost front is shown to be up to three times slower on the superhydrophobic surface compared to a control hydrophobic surface, due to the jumping-drop effect dynamically minimizing the average drop size and surface coverage of the condensate. A simple scaling model is developed to relate the success and speed of inter-drop ice bridging to the drop size distribution. While other reports of condensation frosting on superhydrophobic surfaces have focused exclusively on liquid-solid ice nucleation for isolated drops, these findings reveal that the growth of frost is an inter-drop phenomenon that is strongly coupled to the wettability and drop size distribution of the surface. A jumping-drop superhydrophobic condenser was found to be superior to a conventional dropwise condenser in two respects: preventing heterogeneous ice nucleation by continuously removing subcooled condensate, and delaying frost growth by minimizing the success of interdrop ice bridge formation.

Boreyko, Jonathan B [ORNL; Collier, Pat [ORNL

2013-01-01T23:59:59.000Z

174

Administrative Policy: Drop/Add Policy Page 1 of 1  

E-Print Network [OSTI]

Administrative Policy: Drop/Add Policy Page 1 of 1 Governance & Policies Effective: October 1997 Administrative Policy DROP/ADD POLICY Approved: October 1997 Revised: 2002; 2004; June 8, 2011 Deans' Council. There is no automatic drop policy for nonattendance. PASSHE universities are expected to adhere to the System

Hardy, Christopher R.

175

Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants – Interim Study FY13  

SciTech Connect (OSTI)

The most important criterion for cable performance is its ability to withstand a design-basis accident. With nearly 1000 km of power, control, instrumentation, and other cables typically found in an NPP, it would be a significant undertaking to inspect all of the cables. Degradation of the cable jacket, electrical insulation, and other cable components is a key issue that is likely to affect the ability of the currently installed cables to operate safely and reliably for another 20 to 40 years beyond the initial operating life. The development of one or more nondestructive evaluation (NDE) techniques and supporting models that could assist in determining the remaining life expectancy of cables or their current degradation state would be of significant interest. The ability to nondestructively determine material and electrical properties of cable jackets and insulation without disturbing the cables or connections has been deemed essential. Currently, the only technique accepted by industry to measure cable elasticity (the gold standard for determining cable insulation degradation) is the indentation measurement. All other NDE techniques are used to find flaws in the cable and do not provide information to determine the current health or life expectancy. There is no single NDE technique that can satisfy all of the requirements needed for making a life-expectancy determination, but a wide range of methods have been evaluated for use in NPPs as part of a continuous evaluation program. The commonly used methods are indentation and visual inspection, but these are only suitable for easily accessible cables. Several NDE methodologies using electrical techniques are in use today for flaw detection but there are none that can predict the life of a cable. There are, however, several physical and chemical ptoperty changes in cable insulation as a result of thermal and radiation damage. In principle, these properties may be targets for advanced NDE methods to provide early warning of aging and degradation. Examples of such key indicators include changes in chemical structure, mechanical modulus, and dielectric permittivity. While some of these indicators are the basis of currently used technologies, there is a need to increase the volume of cable that may be inspected with a single measurement, and if possible, to develop techniques for in-situ inspection (i.e., while the cable is in operation). This is the focus of the present report.

Simmons, Kevin L.; Fifield, Leonard S.; Westman, Matthew P.; Ramuhalli, Pradeep; Pardini, Allan F.; Tedeschi, Jonathan R.; Jones, Anthony M.

2013-09-27T23:59:59.000Z

176

LANSCE Wire Scanner System Prototype: Switchyard Test  

SciTech Connect (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

177

Performance of reduced wall EPR insulated medium voltage power cables. Part 2: Mechanical characteristics  

SciTech Connect (OSTI)

For the replacement of paper insulated lead covered cables (PILC) reduced insulation wall designs have been developed. They provide a reliable lower diameter cable design for installation in existing PILC conduits. Representing Part 2 of the investigation, this paper presents the results of mechanical testing conducted on both reduced and full wall EPR insulated cables. Both jacketed and non-jacketed cable designs have been subjected to mechanical pulling forces which greatly exceed recommended industry limitations, followed by electrical testing to ascertain cable performance. The results of this study conclude that reduced wall EPR insulated cables can safely withstand the same pulling forces as recommended for conventional walls and can be designed for installation under the same pulling limitations.

Wen, Y.; Cinquemani, P.L. [Pirelli Cable Corp., Lexington, SC (United States)

1997-04-01T23:59:59.000Z

178

Method and apparatus for electrical cable testing by pulse-arrested spark discharge  

DOE Patents [OSTI]

A method for electrical cable testing by Pulse-Arrested Spark Discharge (PASD) uses the cable response to a short-duration high-voltage incident pulse to determine the location of an electrical breakdown that occurs at a defect site in the cable. The apparatus for cable testing by PASD includes a pulser for generating the short-duration high-voltage incident pulse, at least one diagnostic sensor to detect the incident pulse and the breakdown-induced reflected and/or transmitted pulses propagating from the electrical breakdown at the defect site, and a transient recorder to record the cable response. The method and apparatus are particularly useful to determine the location of defect sites in critical but inaccessible electrical cabling systems in aging aircraft, ships, nuclear power plants, and industrial complexes.

Barnum, John R. (Albuquerque, NM); Warne, Larry K. (Albuquerque, NM); Jorgenson, Roy E. (Albuquerque, NM); Schneider, Larry X. (Albuquerque, NM)

2005-02-08T23:59:59.000Z

179

Vertical vibration and shape oscillation of acoustically levitated water drops  

SciTech Connect (OSTI)

We present the vertical harmonic vibration of levitated water drops within ultrasound field. The restoring force to maintain such a vibration mode is provided by the resultant force of acoustic radiation force and drop gravity. Experiments reveal that the vibration frequency increases with the aspect ratio for drops with the same volume, which agrees with the theoretical prediction for those cases of nearly equiaxed drops. During the vertical vibration, the floating drops undergo the second order shape oscillation. The shape oscillation frequency is determined to be twice the vibration frequency.

Geng, D. L.; Xie, W. J.; Yan, N.; Wei, B., E-mail: bbwei@nwpu.edu.cn [Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072 (China)

2014-09-08T23:59:59.000Z

180

SEMIACTIVE DAMPING OF CABLES WITH SAG E.A. Johnson,1 R.E. Christenson,2 and B.F. Spencer, Jr.2  

E-Print Network [OSTI]

the previous work by adding sag, inclination, and axial flexibility to the cable model. The equa- tions damping, cable galloping, rain-wind induced vibration, cable sag, structural control INTRODUCTION Cables structures. These cables are subject to environmental excitations, such as rain-wind induced vibration

Johnson, Erik A.

Note: This page contains sample records for the topic "drop cable 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

Complete Fiber/Copper Cable Solution for Long-Term Temperature...  

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

tool. EGS Challenges for Cable Performance: - Very high temperatures - Highly corrosive environment - High pressure - Self supporting deployment 3 | US DOE Geothermal Office...

182

E-Print Network 3.0 - aluminum-stabilized superconducting cables...  

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

New superconducting technology will help America reduce the demand for additional electric power Summary: ,000-amp, 3-phase superconducting cable at American Electric Power's...

183

E-Print Network 3.0 - aged xlpe cables Sample Search Results  

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

3 (1993) 1083-1091 JUNE 1993, PAGE 1083 Classification Summary: ) and Cross-linked Polyethylene (XLPE) directly cut into high voltage cables. The pressure is obtained... .72...

184

Design and performance relationships for cable distribution in multi-story office buildings.  

E-Print Network [OSTI]

??Weaknesses associated with cable distribution systems suggest a lack of design consideration in the planning stage of a building. The primary question to be addressed… (more)

Ryan, Richard Cecil

2012-01-01T23:59:59.000Z

185

Complete Fiber/Copper Cable Solution for Long-Term Temperature...  

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

| US DOE Geothermal Program eere.energy.gov Talented technical team - Specialty fiber optics development, testing, and production - Downhole cable and tool development and...

186

Complete Fiber/Copper Cable Solution for Long-Term Temperature...  

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

Cable Solution for Long-Term Temperature and Pressure Measurement in Supercritical Reservoirs and EGS Wells High Temperature ESP Monitoring Geothermal Ultrasonic Fracture Imager...

187

ELECTRICAL AGING OF 15 KV EPR CABLES ENERGIZED BY AC VOLTAGE WITH SWITCHING IMPULSES SUPERIMPOSED.  

E-Print Network [OSTI]

?? In this study, the electrical aging of 15 kV Ethylene Propylene Rubber (EPR) power cables, located in PVC pipes containing water, was conducted by… (more)

Zanwar, Anand Umeshlal

2011-01-01T23:59:59.000Z

188

Accuracy of Reduced and Extended Thin-Wire Kernels  

SciTech Connect (OSTI)

Some results are presented comparing the accuracy of the reduced thin-wire kernel and an extended kernel with exact integration of the 1/R term of the Green's function and results are shown for simple wire structures.

Burke, G J

2008-11-24T23:59:59.000Z

189

atom wire formation: Topics by E-print Network  

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

of the atomic and solid-state systems. This is achieved by capacitively coupling a superconduct- ing wire van der Wal, Caspar H. 264 MFR PAPER 1069 Coded wire tagging...

190

atomic gold wires: Topics by E-print Network  

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

of the atomic and solid-state systems. This is achieved by capacitively coupling a superconduct- ing wire van der Wal, Caspar H. 232 Efficient Wire Formats for High Performance...

191

atom wires assembled: Topics by E-print Network  

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

of the atomic and solid-state systems. This is achieved by capacitively coupling a superconduct- ing wire van der Wal, Caspar H. 216 Efficient Wire Formats for High Performance...

192

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

193

MANAGING WIRE DELAY IN CHIP MULTIPROCESSOR CACHES Bradford M. Beckmann  

E-Print Network [OSTI]

. In contrast, transmission lines can reduce on-chip wire delay by an order of magnitude versus conventional wires and provide low latency to all shared cache banks. We demonstrate on-chip transmission lines provided by transmission lines and reduce off-chip misses versus a design using conventional wires. We

Wood, David A.

194

Grain growth behavior of Pb-Cu-Te cable sheathing alloys  

SciTech Connect (OSTI)

Lead alloys are extensively used as sheathing material for power and telecommunication cables. Excellent extrusion properties, high ductility, extremely low recrystallization temperature, good fatigue and creep resistance, make these alloys ideal for cable sheathing application. Though the thickness of the lead sheath is only a few hundred {mu}m, it is a critical component of the cable. The lead layer in the cable is often the limiting factor both during the cable production and during its service phase. Up to several hundred miles of long single piece cables may be required for underground and underwater cables. Cracking in the lead sheath during the cable sheathing extrusion limits the production of such long cables while cracking of the lead sheath due to repeated vibration, creep and recrystallization limits the service life of these cables. The purpose of the present research is to increase the duration of cable extrusion time without compromising sheath integrity by minimizing deleterious precipitate formation and growth. Concentrations of Cu and Te in the commercial alloy are too small to contribute to precipitation strengthening. Therefore their positive influence on mechanical strength should mainly result from the influence of Cu and Te in solution on interdiffusivity and grain boundary mobility. The formation of large precipitates observed in Pb-Cu-Te alloys can be minimized and extrusion times increased without negatively affecting mechanical properties if the solute content is reduced to near solid solubility levels. In order to examine the effect of lowering solute content on microstructural stability and mechanical properties, compressive stress-strain behavior of a Pb-50 wt ppm Cu-100 wt ppm Te alloy with solute contents close to the solubility limits and a Pb-400 wt ppm Cu-400 wt ppm Te alloy was examined at room temperature. The grain growth kinetics in these alloys were studied in a temperature range of 100 to 225 C.

Sahay, S.S.; Guruswamy, S. [Univ. of Utah, Salt Lake City, UT (United States). Dept. of Metallurgical Engineering] [Univ. of Utah, Salt Lake City, UT (United States). Dept. of Metallurgical Engineering; Goodwin, F. [International Lead Zinc Research Organization, Research Triangle Park, NC (United States)] [International Lead Zinc Research Organization, Research Triangle Park, NC (United States)

1995-04-01T23:59:59.000Z

195

Coalescence of bubbles and drops in an outer fluid  

E-Print Network [OSTI]

When two liquid drops touch, a microscopic connecting liquid bridge forms and rapidly grows as the two drops merge into one. Whereas coalescence has been thoroughly studied when drops coalesce in vacuum or air, many important situations involve coalescence in a dense surrounding fluid, such as oil coalescence in brine. Here we study the merging of gas bubbles and liquid drops in an external fluid. Our data indicate that the flows occur over much larger length scales in the outer fluid than inside the drops themselves. Thus we find that the asymptotic early regime is always dominated by the viscosity of the drops, independent of the external fluid. A phase diagram showing the crossovers into the different possible late-time dynamics identifies a dimensionless number that signifies when the external viscosity can be important.

Joseph D. Paulsen; Rémi Carmigniani; Anerudh Kannan; Justin C. Burton; Sidney R. Nagel

2014-07-24T23:59:59.000Z

196

Direct perturbation analysis on cables with concentrated loads P. Yu *, K. Pan  

E-Print Network [OSTI]

cables, overhead transmission lines, etc. The study of vibrations of suspended cables is of great is the galloping of overhead transmission lines which may cause severe disruptions in the electrical supply and even a cas- cading collapse of a lineÃ?s supporting towers. * Corresponding author. Tel.: +1

Yu, Pei

197

System vendor Contents Type Location Removal of Misc Cable, Conduit and Junction Boxes  

E-Print Network [OSTI]

System vendor Contents Type Location Removal of Misc Cable, Conduit and Junction Boxes in the NCSX;System vendor Contents Type Location Installation for NCSX Power Cables Procedure Procedure Files IP Procedure Procedure Files IP-NCSX-2972 #12;System vendor Contents Type Location Coils NCSX Coil System DC

Princeton Plasma Physics Laboratory

198

Mathematical modeling of electromagnetic wave propagation in heterogeneous lossy coaxial cables with  

E-Print Network [OSTI]

]. However, as pointed Defect Piezo-electric sensor Co-axial cable Piezo-electric sensor Co-axial cable the Project team POEMS of INRIA and the laboratory LIST of CEA Saclay. The general objective of this collaboration has been the nu- merical simulation of piezo-electric sensors used for non destructive testing

Boyer, Edmond

199

K.K. Gan IPRD06 1 Bandwidths of Micro Twisted-Pair Cables  

E-Print Network [OSTI]

A or more What is rise/fall time after irradiation? What is optical power after irradiation? What currentK.K. Gan IPRD06 1 Bandwidths of Micro Twisted-Pair Cables and Fusion Spliced SIMM-GRIN Fibers Introduction Bandwidth of micro twisted-pair cables Bandwidth of fusion spliced SIMM-GRIN fibers Radiation

Gan, K. K.

200

Effort on Developing Cabled Ocean Observatories Research Assitant, Institute of Mechatronics Control Engineering, Zhejiang University  

E-Print Network [OSTI]

of Mechatronics Control Engineering, Zhejiang University Post-doctoral Research Fellow, Department of Ocean and Resources Engineering, University of Hawaii Abstract Cabled ocean observatory that enables abundant powerEffort on Developing Cabled Ocean Observatories in China Yanhu Chen Research Assitant, Institute

Frandsen, Jannette B.

Note: This page contains sample records for the topic "drop cable 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

An Internal Coaxial Cable Electrical Connector For Use In Downhole Tools  

DOE Patents [OSTI]

A seal for a coaxial cable electrical connector more specifically an internal seal for a coaxial cable connector placed within a coaxial cable and its constituent components. A coaxial cable connector is in electrical communcation with an inductive transformer and a coaxial cable. The connector is in electrical communication with the outer housing of the inductive transformer. A generally coaxial center conductor, a portion of which could be the coil in the inductive transformer, passes through the connector, is electrically insulated from the connector, and is in electrical communication with the conductive core of the coaxial cable. The electrically insulating material also doubles as a seal to safegaurd against penetration of fluid, thus protecting against shorting out of the electrical connection. The seal is a multi-component seal, which is pre-compressed to a desired pressure rating. The coaxial cable and inductive transformer are disposed within downhole tools to transmit electrical signals between downhole tools within a drill string. The internal coaxial cable connector and its attendant seal can be used in a plurality of downhole tools, such as sections of pipe in a drill string, drill collars, heavy weight drill pipe, and jars.

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

2005-09-20T23:59:59.000Z

202

Valuable bridges : cable-stayed bridges and value engineering in American civil engineering culture, 1969-1979  

E-Print Network [OSTI]

A history and theory of cable-stayed bridges in the context of a cultural discourse on civil construction projects' value, this thesis studies the significance of cable-stayed bridge designs to 'value engineering' objectives ...

Samuels, Fallon M. (Fallon Michele)

2007-01-01T23:59:59.000Z

203

New MV cable design for wet environments in underground distribution systems  

SciTech Connect (OSTI)

This paper describes the development of new wet design MV power cables, up to 35 kV, using EPDM compound as insulation and longitudinal water tightness. The combination of the cable design and the type of insulation compound allow for reduction of the insulation thickness in such a way, as to have an electrical stress at the conductor of 4 kV/mm which is significantly greater than used in MV distribution cables. Following a methodology established, at the author's company, the reliability of this design, cable and EPDM's formulation, in wet location, without metallic water barriers, was well demonstrated. Mini-installation of model cables in service-like conditions, to estimate the ageing rate, are presented and discussed.

Teixeira, M.D.R. Jr. (Ficap Fios e Cabos Plasticos do Brasil SA, Rio De Janeiro (BR))

1990-04-01T23:59:59.000Z

204

Development of 500 kV DC PPLP-insulated oil-filled submarine cable  

SciTech Connect (OSTI)

This paper outlines the development of a 500 kV DC oil-filled submarine cable capable of transmitting 2,800 MW with {+-} 500 kV 2800A bipole system. Polypropylene Laminated Paper (PPL) was employed as the insulation material, which is the worlds first application to DC cables. The conductor size is 3,000 mm{sup 2}, which is the largest size for submarine cables ever put into practical use. Through various fundamental and prototype tests, the cable proved to have excellent electrical characteristics for DC voltage as well as transient overvoltage. The cable and accessories are currently undergoing a long-term accelerated aging test as the final confirmation of their reliability and stability.

Fujimori, A. [Kansai Electric Power Co., Inc., Osaka (Japan)] [Kansai Electric Power Co., Inc., Osaka (Japan); Tanaka, T. [Electric Power Development Co., Ltd., Tokyo (Japan)] [Electric Power Development Co., Ltd., Tokyo (Japan); Takashima, H. [Shikoku Electric Power Co., Inc., Kagawa (Japan)] [Shikoku Electric Power Co., Inc., Kagawa (Japan); Imajo, T. [Central Research Inst. of Electric Power Industry, Tokyo (Japan)] [Central Research Inst. of Electric Power Industry, Tokyo (Japan); Hata, R. [Sumitomo Electric Industries, Ltd., Osaka (Japan)] [Sumitomo Electric Industries, Ltd., Osaka (Japan); Tanabe, T. [Furukawa Electric Co., Ltd., Tokyo (Japan)] [Furukawa Electric Co., Ltd., Tokyo (Japan); Yoshida, S. [Fujikura, Ltd., Tokyo (Japan)] [Fujikura, Ltd., Tokyo (Japan); Kakihana, T. [Hitachi Cable, Ltd., Tokyo (Japan)] [Hitachi Cable, Ltd., Tokyo (Japan)

1996-01-01T23:59:59.000Z

205

CUDI A Model for Calculation of Electrodynamic and Thermal Behaviour of Superconducting Rutherford Cables  

E-Print Network [OSTI]

CUDI is the extended Fortran code to calculate the electrodynamic and thermal behaviour of any type of Rutherford cable subject to global and/or local variations in field, transport current, and external heat release. The internal parameters of the cable can be freely varied along the length and across the width, such as contact resistances, critical current, cooling rates etc. In this way, all the typical non-uniformities occurring in a cable, e.g. broken filaments, strand welds, cable joints, and edge degradation can be simulated. Also the characteristics of the strands in the cable can be varied from strand to strand. Heat flows through the matrix, through the interstrand contacts, and to the helium are incorporated, as well as the self-field and self- and mutual inductances between the strands. The main features and structure of the program will be discussed.

Verweij, A

2006-01-01T23:59:59.000Z

206

Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop  

DOE Patents [OSTI]

Methods for generating and applying coatings to filters with porous material in order to reduce large pressure drop increases as material accumulates in a filter, as well as the filter exhibiting reduced and/or more uniform pressure drop. The filter can be a diesel particulate trap for removing particulate matter such as soot from the exhaust of a diesel engine. Porous material such as ash is loaded on the surface of the substrate or filter walls, such as by coating, depositing, distributing or layering the porous material along the channel walls of the filter in an amount effective for minimizing or preventing depth filtration during use of the filter. Efficient filtration at acceptable flow rates is achieved.

Sappok, Alexander; Wong, Victor

2014-11-18T23:59:59.000Z

207

Processing and properties of superconductor wires  

SciTech Connect (OSTI)

Variables in fabrication of superconductor wires by extrusion and by powder-in-tube processing are discussed. Decomposition of plastically extruded YBCO is minimized by firing at reduced total pressure. Extruded wires of YBCO were densified with fine-grained microstructures by sintering at an oxygen partial pressure of 10{sup {minus}3} MPa. A reduction in average grain size from 23 to 4 {mu}m increased strength from 83 to 191 MPa. Addition of 15 vol. % Ag particles further increased the strength to 220 MPa, with the increase resulting from compressive stresses in YBCO matrix due to the Ag. In powder-in-tube processing, primary considerations are the mechanical-working and heating schedules. The best properties in Ag-clad Bi-based superconductors were obtained with many small reductions during working and by use of liquid-phase formation during sintering to promote grain growth. 12 refs., 3 figs., 1 tab.

Singh, J.P.; Dorris, S.E.; Lanagan, M.T.; Wu, C.T.; Goretta, K.C.; Joo, J.; Balachandran, U.; Poeppel, R.B.

1991-10-01T23:59:59.000Z

208

Performance Evaluation of K-DEMO Cable-in-conduit Conductors Using the Florida Electro-Mechanical Cable Model  

SciTech Connect (OSTI)

The United States ITER Project Office (USIPO) is responsible for design of the Toroidal Field (TF) insert coil, which will allow validation of the performance of significant lengths of the conductors to be used in the full scale TF coils in relevant conditions of field, current density and mechanical strain. The Japan Atomic Energy Agency (JAEA) will build the TF insert which will be tested at the Central Solenoid Model Coil (CSMC) Test facility at JAEA, Naka, Japan. Three dimensional mathematical model of TF Insert was created based on the initial design geometry data, and included the following features: orthotropic material properties of superconductor material and insulation; external magnetic field from CSMC, temperature dependent properties of the materials; pre-compression and plastic deformation in lap joint. Major geometrical characteristics of the design were preserved including cable jacket and insulation shape, mandrel outline, and support clamps and spacers. The model is capable of performing coupled structural, thermal, and electromagnetic analysis using ANSYS. Numerical simulations were performed for room temperature conditions; cool down to 4K, and the operating regime with 68kA current at 11.8 Tesla background field. Numerical simulations led to the final design of the coil producing the required strain levels on the cable, while simultaneously satisfying the ITER magnet structural design criteria.

Zhai, Yuhu

2013-07-16T23:59:59.000Z

209

Abstract--Recent studies of long EHV cables show the importance of performing temporary overvoltage analyses. As the  

E-Print Network [OSTI]

health. Because of this shift in trend, the recently proposed HVAC underground cable systems are longer lines. HVAC underground cable systems are used, but their use has mainly been limited to densely populated areas. As such, HVAC underground cable systems have until now been limited both in terms of length

Bak, Claus Leth

210

The University of Texas at Austin September 30, 2011 Cable Trays for Communications Systems 27 05 36-1  

E-Print Network [OSTI]

Cable Tray Installation Guidelines 4. NFPA 70B, Recommended Practice for Electrical Equipment manufacturer that the cable tray system has been UL-tested to be continuously grounded. c) Where the desiredThe University of Texas at Austin September 30, 2011 Cable Trays for Communications Systems 27 05

Dawson, Clint N.

211

Accelerated drop detachment in granular suspensions  

E-Print Network [OSTI]

We experimentally study the detachment of drops of granular suspensions using a density matched model suspension with varying volume fraction ({\\phi} = 15% to 55%) and grain diameter (d = 20 {\\mu}m to 140 {\\mu}m). We show that at the beginning of the detachment process, the suspensions behave as an effective fluid. The detachment dynamics in this regime can be entirely described by the shear viscosity of the suspension. At later stages of the detachment the dynamics become independent of the volume fraction and are found to be identical to the dynamics of the interstitial fluid. Surprisingly, visual observation reveals that at this stage particles are still present in the neck. We suspect rearrangements of particles to locally free the neck of grains, causing the observed dynamics. Close to the final pinch off, the detachment of the suspensions is further accelerated, compared to the dynamics of pure interstitial fluid. This acceleration might be due to the fact that the neck diameter gets of the order of magnitude of the size of the grains and a continuous thinning of the liquid thread is not possible any more. The crossover between the different detachment regimes is function of the grain size and the initial volume fraction. We characterize the overall acceleration as a function of the grain size and volume fraction.

Claire Bonnoit; Thibault Bertrand; Éric Clément; Anke Lindner

2010-09-09T23:59:59.000Z

212

Compact multiwavelength transmitter module for multimode fiber optic ribbon cable  

DOE Patents [OSTI]

A compact multiwavelength transmitter module for multimode fiber optic ribbon cable, which couples light from an M.times.N array of emitters onto N fibers, where the M wavelength may be distributed across two or more vertical-cavity surface-emitting laser (VCSEL) chips, and combining emitters and multiplexer into a compact package that is compatible with placement on a printed circuit board. A key feature is bringing together two emitter arrays fabricated on different substrates--each array designed for a different wavelength--into close physical proximity. Another key feature is to compactly and efficiently combine the light from two or more clusters of optical emitters, each in a different wavelength band, into a fiber ribbon.

Deri, Robert J. (Pleasanton, CA); Pocha, Michael D. (Livermore, CA); Larson, Michael C. (Goleta, CA); Garrett, Henry E. (Livermore, CA)

2002-01-01T23:59:59.000Z

213

Light weight underground pipe or cable installing device  

SciTech Connect (OSTI)

This invention pertains to a light weight underground pipe or cable installing device adapted for use in a narrow and deep operating trench. More particularly this underground pipe installing device employs a pair of laterally movable gates positioned adjacent the bottom of the operating trench where the earth is more solid to securely clamp the device in the operating trench to enable it to withstand the forces exerted as the actuating rod is forced through the earth from the so-called operating trench to the target trench. To accommodate the laterally movable gates positioned adjacent the bottom of the narrow pipe installing device, a pair of top operated double-acting rod clamping jaws, operated by a hydraulic cylinder positioned above the actuating rod are employed.

Schosek, W. O.

1985-01-08T23:59:59.000Z

214

Analysis of nonconcurrent cable moorings with rigid and elastic inclusions  

E-Print Network [OSTI]

pointsQ2andQ3are 2 X2i + Y2S + 2k (e) r3 = X31 + Y3J + 23k The external forces at the attachment points are as previously defined and are given by l = Fxli + Fy]1 F2 = Fx2i + Fy2~ F3 = Rx3i + Fy3$ + Fzlk + FZ2k + Fz3k (8) The cable reactions... C1X2 + C612 - C3 3 6 3 0 (20) CZX2 - CSY2 + C4X3 - C6Y3 = 0 The coefficients Cl - C6 in the above equations are defined as Cl = Fz2 + Rz2 C3 Fz3 + Rz3 4 = Fy3 ' Ry3 C6 = Fx2 + Rx 2 C6 = Fx3 + RX3 Solution of Nonlinear Simultaneous E uations...

Greer, Geral Glen

2012-06-07T23:59:59.000Z

215

Segregation in desiccated sessile drops of biological fluids  

E-Print Network [OSTI]

It is shown here that concurrence between advection and diffusion in a drying sessile drop of a biological fluid can produce spatial redistribution of albumen and salt. The result gives an explanation for the patterns observed in the dried drops of the biological fluids.

Yuri Yu. Tarasevich; Dina M. Pravoslavnova

2006-09-22T23:59:59.000Z

216

Drop Tests of the Closure Ring for the 9975 Package  

SciTech Connect (OSTI)

The drop tests of the closure ring for 9975 packages, described here, were performed to answer questions raised by the regulatory authority as a result of deformation of the closure ring and drum rim observed during drop tests conducted in September 1998.

Smith, A.C

1999-09-29T23:59:59.000Z

217

The effect of confinement on the deformation of microfluidic drops  

E-Print Network [OSTI]

We study the deformation of drops squeezed between the floor and ceiling of a microchannel and subjected to a hyperbolic flow. We observe that the maximum deformation of drops depends on both the drop size and the rate of strain of the external flow and can be described with power laws with exponents 2.59 +/- 0.28 and 0.94 +/- 0.04 respectively. We develop a theoretical model to describe the deformation of squeezed drops based on the Darcy approximation for shallow geometries and the use of complex potentials. The model describes the steady-state deformation of the drops as a function of a non-dimensional parameter Ca d^2, where Ca is the capillary number (proportional to the strain rate and the drop size) and d is a confinement parameter equal to the drop size divided by the channel height. For small deformations, the theoretical model predicts a linear relationship between the deformation of drops and this parameter, in good agreement with the experimental observations.

Ulloa, Camilo; Cordero, María Luisa

2013-01-01T23:59:59.000Z

218

Long-term aging and loss-of-coolant accident (LOCA) testing of electrical cables  

SciTech Connect (OSTI)

Experiments were performed to assess the aging degradation and loss-of-coolant accident (LOCA) behavior of electrical cables subjected to long-term aging exposures. Four different cable types were tested in both the U.S. and France: (1) U.S. 2 conductor with ethylene propylene rubber (EPR) insulation and a Hypalon jacket. (2) U.S. 3 conductor with cross-linked polyethylene (XLPE) insulation and a Hypalon jacket. (3) French 3 conductor with EPR insulation and a Hypalon jacket. (4) French coaxial with polyethylene (PE) insulation and a PE jacket. The data represent up to 5 years of simultaneous aging where the cables were exposed to identical aging radiation doses at either 40{degrees}C or 70{degrees}C; however, the dose rate used for the aging irradiation was varied over a wide range (2-100 Gy/hr). Aging was followed by exposure to simulated French LOCA conditions. Several mechanical, electrical, and physical-chemical condition monitoring techniques were used to investigate the degradation behavior of the cables. All the cables, except for the French PE cable, performed acceptably during the aging and LOCA simulations. In general, cable degradation at a given dose was highest for the lowest dose rate, and the amount of degradation decreased as the dose rate was increased.

Nelson, C.F.; Gauthier, G.; Carlin, F. [and others

1996-10-01T23:59:59.000Z

219

Radiation Testing of a Low Voltage Silicone Nuclear Power Plant Cable.  

SciTech Connect (OSTI)

This report summarizes the results generated in FY13 for cable insulation in support of the Department of Energy's Light Water Reactor Sustainability (LWRS) Program, in collaboration with the US-Argentine Binational Energy Working Group (BEWG). A silicone (SiR) cable, which was stored in benign conditions for ~30 years, was obtained from Comision Nacional de Energia Atomica (CNEA) in Argentina with the approval of NA-SA (Nucleoelectrica Argentina Sociedad Anonima). Physical property testing was performed on the as-received cable. This cable was artificially aged to assess behavior with additional analysis. SNL observed appreciable tensile elongation values for all cable insulations received, indicative of good mechanical performance. Of particular note, the work presented here provides correlations between measured tensile elongation and other physical properties that may be potentially leveraged as a form of condition monitoring (CM) for actual service cables. It is recognized at this point that the polymer aging community is still lacking the number and types of field returned materials that are desired, but Sandia National Laboratories (SNL) -- along with the help of others -- is continuing to work towards that goal. This work is an initial study that should be complimented with location-mapping of environmental conditions of Argentinean plant conditions (dose and temperature) as well as retrieval, analysis, and comparison with in- service cables.

White II, Gregory Von; Schroeder, John Lee.; Sawyer, Patricia Sue.; Wichhart, Derek; Mata, Guillermo Adrian; Zorrilla, Jorge; Bernstein, Robert

2014-09-01T23:59:59.000Z

220

Radiation Testing of a Low Voltage Silicone Nuclear Power Plant Cable.  

SciTech Connect (OSTI)

This report summarizes the results generated in FY13 for cable insulation in support of DOE's Light Water Reactor Sustainability (LWRS) Program, in collaboration with the US- Argentine Binational Energy Working Group (BEWG). A silicone (SiR) cable, which was stored in benign conditions for ~30 years, was obtained from Comision Nacional de Energia Atomica (CNEA) in Argentina. Physical property testing was performed on the as-received cable. This cable was artificially aged to assess behavior with additional analysis. SNL observed appreciable tensile elongation values for all cable insulations received, indicative of good mechanical performance. Of particular note, the work presented here provides correlations between measured tensile elongation and other physical properties that may be potentially leveraged as a form of condition monitoring (CM) for actual service cables. It is recognized at this point that the polymer aging community is still lacking the number and types of field returned materials that are desired, but SNL -- along with the help of others -- is continuing to work towards that goal. This work is an initial study that should be complimented with location- mapping of environmental conditions of CNEA plant conditions (dose and temperature) as well as retrieval, analysis, and comparison with in-service cables.

Bernstein, Robert

2014-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

Radiative cooling of two-component wire-array Z-pinch plasma  

SciTech Connect (OSTI)

Wire-array two-component Z-pinch plasmas containing Al and other elements were studied experimentally and the observations interpreted with the help of theoretical modeling. Special attention was given to achieving reproducible implosions. Cascading implosions in star wire arrays mix components during the implosion phase and implosion dynamics were not affected by changes in concentration. A reduction in Al K-shell radiation and an increase in soft x-ray radiation emission were observed in Al-W plasma with 84% concentration of Al ions compared to only-Al plasma. Plasma with 84% of Al ions has radiative properties like those of W Z-pinches. The analysis of Al K-shell x-ray spectra with a collisional-radiative atomic kinetics model shows a drop of the electron temperature from 400?eV in pure Al plasma to below 300?eV in the Al-W mix. Al-Au Z-pinches present radiation features similar to Al-W plasma. This is indicative of a similar plasma cooling effect due to the presence of a high-Z element.

Ivanov, V. V.; Mancini, R. C.; Papp, D.; Hakel, P.; Durmaz, T. [Department of Physics, University of Nevada, Reno, Nevada 89557 (United States); Florido, R. [Department of Physics, University of Nevada, Reno, Nevada 89557 (United States); Departamento de Física, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria (Spain)

2014-08-15T23:59:59.000Z

222

MELT WIRE SENSORS AVAILABLE TO DETERMINE PEAK TEMPERATURES IN ATR IRRADIATION TESTING  

SciTech Connect (OSTI)

In April 2007, the Department of Energy (DOE) designated the Advanced Test Reactor (ATR) a National Scientific User Facility (NSUF) to advance US leadership in nuclear science and technology. By attracting new users from universities, laboratories, and industry, the ATR will support basic and applied nuclear research and development and help address the nation's energy security needs. In support of this new program, the Idaho National Laboratory (INL) has developed in-house capabilities to fabricate, test, and qualify new and enhanced temperature sensors for irradiation testing. Although most efforts emphasize sensors capable of providing real-time data, selected tasks have been completed to enhance sensors provided in irradiation locations where instrumentation leads cannot be included, such as drop-in capsule and Hydraulic Shuttle Irradiation System (HSIS) or 'rabbit' locations. To meet the need for these locations, the INL has developed melt wire temperature sensors for use in ATR irradiation testing. Differential scanning calorimetry and environmental testing of prototypical sensors was used to develop a library of 28 melt wire materials, capable of detecting peak irradiation temperatures ranging from 85 to 1500°C. This paper will discuss the development work and present test results.

K. L. Davis; D. Knudson; J. Daw; J. Palmer; J. L. Rempe

2012-07-01T23:59:59.000Z

223

HVDC submarine power cables systems state of the art and future developments  

SciTech Connect (OSTI)

The paper begins with an introduction on the reasons that lead to the use of HVDC submarine cable links. The main aspects for the choice of direct current are presented as well as the advantages deriving from the utilization of submarine cables. The second part is dedicated to a discussion on the various type of insulation that could be used in power cables and their possible application to HVDC submarine cables. In the following there is a description of the main characteristics and technical details of some particular project that at present time (1995) are in progress. Two projects are briefly presented: Spain-Morocco, a 26 km long interconnection for the transmission, in a first phase, of 700 MW from Spain to Morocco at 400 kV a.c. by means of three cables, plus one spare, of the fluid filled type. The cables are designed for a future change to d.c. 450 kV, allowing a transmission of 500 MW each (i.e., 2 GW total). One of the peculiarities of the link is the maximum water depth of 615 m (world record for submarine power cables at the time of installation). Italy-Greece, a 1km long interconnection for the transmission of 500 MW (bi-directional) by means of one paper insulated mass impregnated cable having 1,250 sq mm conductor size and insulated for a rated voltage of 400 kV. This link (the installation of which will be posterior to the Spain-Morocco) will attain the world record for the maximum water depth for submarine power cables: 1,000 m. The last part deals with the future developments expected in this field, in terms of conductor size and voltage, that means an increase in transmissible capacity.

Valenza, D.; Cipollini, G. [Pirelli Cavi S.p.A., Milano (Italy)

1995-12-31T23:59:59.000Z

224

System and method for evaluating a wire conductor  

SciTech Connect (OSTI)

A method of evaluating an electrically conductive wire segment having an insulated intermediate portion and non-insulated ends includes passing the insulated portion of the wire segment through an electrically conductive brush. According to the method, an electrical potential is established on the brush by a power source. The method also includes determining a value of electrical current that is conducted through the wire segment by the brush when the potential is established on the brush. The method additionally includes comparing the value of electrical current conducted through the wire segment with a predetermined current value to thereby evaluate the wire segment. A system for evaluating an electrically conductive wire segment is also disclosed.

Panozzo, Edward; Parish, Harold

2013-10-22T23:59:59.000Z

225

Influence of insulating coating on aluminum wire explosions  

SciTech Connect (OSTI)

Single wire explosions are widely used in understanding the early stages of z-pinch experiments. This paper presents a serial of experiments conducted on the pulse power generator with ?1?kA peak current and ?10?ns rising time in Xi'an Jiao Tong University. Polyimide coated aluminum wires and uncoated ones were tested under three different voltages to analyze the effect of insulating coating. Experimental results showed that insulating coating can increase the energy deposition 10%?30% in aluminum wires by delaying the voltage collapse and raising the maximum load resistance. The substantial energy deposition resulted in about 20% faster expansion rates for coated wires. Experimental evidence that plasma channel shunts the current from the wire core was observed by streak camera and schlieren graphs. This paper also briefly discussed the influence of nonuniform coating on the morphology of wire expansion.

Li, Yang; Wu, Jian, E-mail: jxjawj@gmail.com [State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049 (China); State Key Laboratory of Intense Pulse Radiation of Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024 (China); Sheng, Liang; Zhao, Jizhen; Zhang, Mei; Yuan, Yuan; Peng, Bodong [State Key Laboratory of Intense Pulse Radiation of Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024 (China); Li, Xingwen [State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049 (China)

2014-10-15T23:59:59.000Z

226

Observations of the long distance exploding wire restrike mechanism  

SciTech Connect (OSTI)

An exploding wire restrike mechanism is applied to create plasma paths up to 9 m in length. The mechanism uses enameled copper wires in a 5 to 10 kV/m region of average electric field (AEF). This relatively low AEF restrike mechanism appears to be linked to the formation of plasma beads along the wire's length. Voltage traces, measurement of relative emitted light intensity and photographs are presented at AEFs below, inside and above the identified restrike region.

Sinton, Rowan; Herel, Ryan van; Enright, Wade; Bodger, Pat [Electrical and Computer Engineering, University of Canterbury, Private Bag 4800 Christchurch (New Zealand)

2010-09-15T23:59:59.000Z

227

Design of a high precision desktop wire electrical discharge machine.  

E-Print Network [OSTI]

??This thesis discusses the design of a wire electrical discharge machine that is small enough to be deemed a desktop machine that achieves sub micron… (more)

Dunlop, David James

2010-01-01T23:59:59.000Z

228

Radiation from mixed multi-planar wire arrays  

SciTech Connect (OSTI)

The study of radiation from different wire materials in wire array Z-pinch plasma is a very challenging topic because it is almost impossible to separate different plasmas at the stagnation. A new approach is suggested based on planar wire array (PWA) loads to assess this problem. Multi-planar wire arrays are implemented that consist of few planes, each with the same number of wires and masses but from different wire materials, arranged in parallel rows. In particular, the experimental results obtained with triple PWAs (TPWAs) on the UNR Zebra generator are analyzed with Wire Ablation Dynamics Model, non-local thermodynamic equilibrium kinetic model, and 2D radiation magneto-hydrodynamic to illustrate this new approach. In TPWAs, two wire planes were from mid-atomic-number wire material and another plane was from alloyed Al, placed either in the middle or at the edge of the TPWA. Spatial and temporal properties of K-shell Al and L-shell Cu radiations were analyzed and compared from these two configurations of TPWAs. Advantages of the new approach are demonstrated and future work is discussed.

Safronova, A. S.; Kantsyrev, V. L.; Esaulov, A. A.; Weller, M. E.; Shlyaptseva, V. V.; Shrestha, I.; Keim, S. F.; Stafford, A. [Physics Department, University of Nevada, Reno, Nevada 89557 (United States)] [Physics Department, University of Nevada, Reno, Nevada 89557 (United States); Chuvatin, A. S. [Laboratoire de Physique des Plasmas, Ecole Polytechnique, 91128 Palaiseau (France)] [Laboratoire de Physique des Plasmas, Ecole Polytechnique, 91128 Palaiseau (France); Coverdale, C. A. [Sandia National Laboratories, Albuquerque, New Mexico (United States)] [Sandia National Laboratories, Albuquerque, New Mexico (United States); Apruzese, J. P. [Consultant to NRL through Engility Corp., Chantilly, Virginia 20151 (United States)] [Consultant to NRL through Engility Corp., Chantilly, Virginia 20151 (United States); Ouart, N. D.; Giuliani, J. L. [Naval Research Laboratory, Washington DC 20375 (United States)] [Naval Research Laboratory, Washington DC 20375 (United States)

2014-03-15T23:59:59.000Z

229

Elastic anisotropy in multifilament Nb3Sn superconducting wires  

E-Print Network [OSTI]

The elastic anisotropy caused by the texture in the Nb3Sn filaments of PIT and RRP wires has been calculated by averaging the estimates of Voigt and Reuss, using published Nb3Sn single crystal elastic constants and the Nb3Sn grain orientation distribution determined in both wire types by Electron Backscatter Diffraction. At ambient temperature the calculated Nb3Sn E-moduli in axial direction in the PIT and the RRP wire are 130 GPa and 140 GPa, respectively. The calculated E-moduli are compared with tensile test results obtained for the corresponding wires and extracted filament bundles.

Scheuerlein, C; Alknes, P; Arnau, G; Bjoerstad, R; Bordini, B

2015-01-01T23:59:59.000Z

230

Synthesis of organic wires mediating electron transfer | Center...  

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

Center News Research Highlights Center Research News Media about Center Center Video Library Bisfuel Picture Gallery Synthesis of organic wires mediating electron transfer 8 Feb...

231

Achievable Qubit Rates for Quantum Information Wires  

E-Print Network [OSTI]

Suppose Alice and Bob have access to two separated regions, respectively, of a system of electrons moving in the presence of a regular one-dimensional lattice of binding atoms. We consider the problem of communicating as much quantum information, as measured by the qubit rate, through this quantum information wire as possible. We describe a protocol whereby Alice and Bob can achieve a qubit rate for these systems which is proportional to N^(-1/3) qubits per unit time, where N is the number of lattice sites. Our protocol also functions equally in the presence of interactions modelled via the t-J and Hubbard models.

Hulya Yadsan-Appleby; Tobias J. Osborne

2011-02-15T23:59:59.000Z

232

Diamond Wire Technology LLC | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump to:52c8ff988c1Dering Harbor, NewRidge, Alaska: Energy Resources JumpWire

233

Wire-Net | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:SeadovCooperative JumpWilliamson County,Bay, OR)WinneshiekWinterWire-Net Jump to:

234

SEMIACTIVE DAMPING OF CABLES WITH SAG E.A. Johnson,1 R.E. Christenson,2 and B.F. Spencer, Jr.2  

E-Print Network [OSTI]

- cantly superior supplemental damping. This paper extends the previous work by adding sag, inclination damping, cable galloping, rain-wind induced vibration, cable-stayed bridges, structural control bridges and other cable structures. These cables are subject to environmental excitations, such as rain-wind

Johnson, Erik A.

235

Self-ratcheting Stokes drops driven by oblique vibrations  

E-Print Network [OSTI]

We develop and analyze a minimal hydrodynamic model in the overdamped limit to understand why a drop climbs a smooth homogeneous incline that is harmonically vibrated at an angle different from the substrate normal [Brunet, Eggers and Deegan, Phys. Rev. Lett. 99, 144501 (2007)]. We find that the vibration component orthogonal to the substrate induces a nonlinear (anharmonic) response in the drop shape. This results in an asymmetric response of the drop to the parallel vibration and, in consequence, in the observed net motion. Beside establishing the basic mechanism, we identify scaling laws valid in a broad frequency range and a flow reversal at high frequencies.

Karin John; Uwe Thiele

2009-07-07T23:59:59.000Z

236

Humidity effects on wire insulation breakdown strength.  

SciTech Connect (OSTI)

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

237

Fast and High Accuracy Wire Scanner  

E-Print Network [OSTI]

Scanning of a high intensity particle beam imposes challenging requirements on a Wire Scanner system. It is expected to reach a scanning speed of 20 m.s-1 with a position accuracy of the order of 1 ?m. In addition a timing accuracy better than 1 millisecond is needed. The adopted solution consists of a fork holding a wire rotating by a maximum of 200°. Fork, rotor and angular position sensor are mounted on the same axis and located in a chamber connected to the beam vacuum. The requirements imply the design of a system with extremely low vibration, vacuum compatibility, radiation and temperature tolerance. The adopted solution consists of a rotary brushless synchronous motor with the permanent magnet rotor installed inside of the vacuum chamber and the stator installed outside. The accurate position sensor will be mounted on the rotary shaft inside of the vacuum chamber, has to resist a bake-out temperature of 200°C and ionizing radiation up to a dozen of kGy/year. A digital feedback controller allows maxi...

Koujili, M; Koopman, J; Ramos, D; Sapinski, M; De Freitas, J; Ait Amira, Y; Djerdir, A

2009-01-01T23:59:59.000Z

238

Dielectrometry measurements of moisture diffusion and temperature dynamics in oil impregnated paper insulated electric power cables  

E-Print Network [OSTI]

Paper insulated lead covered (PILC) cables have played an important role in underground power distribution for a hundred years. Replacing aged PILC before failure is critical to managing power distribution. Three prominent ...

Thomas, Zachary M. (Zachary Michael)

2007-01-01T23:59:59.000Z

239

INTERMODAL RESONANCE OF IN-PLANE FREE VIBRATIONS OF SUSPENDED CABLES  

E-Print Network [OSTI]

transmission lines for transport of high-voltage electricity are cables made of alu- minium alloy, suspended between high towers in the countryside. The part of a line that is suspended between two towers is called

Rienstra, Sjoerd W.

240

E-Print Network 3.0 - ac underground cable Sample Search Results  

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

i c e s VOICE & DATA Summary: ) The underground cable shall have an aluminium steel polyethylene (ASP) sheath and a core of solid... , transposition and presence of AC voltage. ...

Note: This page contains sample records for the topic "drop cable 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

Control signal transmission through power supply cables of a 3-phase PWM motor  

E-Print Network [OSTI]

Modem process control systems often employ accurate position or speed controlled PWM motors, which require feedback data for the drive control loop. Current methods require an independently shielded cable for feedback data ...

Mendez, Jose A. (Jose Antonio Mendez Alcazar)

2006-01-01T23:59:59.000Z

242

Partial discharge measurements on a high voltage direct current mass impregnated paper cable  

SciTech Connect (OSTI)

Partial discharge measurement has been a good tool for the quality assurance of cables under alternating voltage. With the growing interest in High Voltage Direct Current cables it seems therefore logical to extend this technique for use at direct voltage. The paper describes this technique as used on a HVDC cable with mass impregnated paper. The different phases of operation (no load, full load, cooling phase, etc.) are characterized by a different discharge behavior. Special attention is given to the dangerous cooling phase. Models have been developed which can explain the discharge patterns that were measured. This paper gives an insight in the electrical behavior of a HVDC cable with mass impregnated paper insulation.

Jeroense, M.J.P. [NKF KABEL B.V., Delft (Netherlands); Kreuger, F.H. [Delft Univ. of Technology (Netherlands)

1996-12-31T23:59:59.000Z

243

Design and performance relationships for cable distribution in multi-story office buildings  

E-Print Network [OSTI]

Weaknesses associated with cable distribution systems suggest a lack of design consideration in the planning stage of a building. The primary question to be addressed in this study is do relationships between design considerations and building...

Ryan, Richard Cecil

1990-01-01T23:59:59.000Z

244

K.K. Gan IWORID-8 1 Bandwidths of Micro Twisted-Pair Cables  

E-Print Network [OSTI]

-V Characteristics very good optical power candidate for irradiation study Optowell TP85-LCP0N 0.0 0.5 1.0 1.5 2K.K. Gan IWORID-8 1 Bandwidths of Micro Twisted-Pair Cables and Fusion Spliced SIMM-GRIN Fibers Bandwidth of micro twisted-pair cables Bandwidth of fusion spliced SIMM-GRIN fibers Measurement of VCSEL

Gan, K. K.

245

The influence of surface tension gradients on drop coalescence  

E-Print Network [OSTI]

We present the results of a combined experimental and numerical investigation of the coalescence of a drop with a liquid reservoir of a miscible but distinct fluid. Particular attention is given to elucidating the influence ...

Bush, John W. M.

246

Stability issues in IC Low Drop Out voltage regulators  

E-Print Network [OSTI]

Performance issues of IC Low Drop Out (LDO) voltage regulators, with specific reference to stability, are discussed in this thesis. Evaluation of existing frequency compensation schemes and their performances across operating loads is presented...

Chava, Krishna Chaitanya

2002-01-01T23:59:59.000Z

247

Drop-in replacement biofuels : meeting the challenge  

E-Print Network [OSTI]

This thesis presents a discussion on the challenges that must be met to fulfill the U.S. Navy's strategic imperatives for its energy vision. It provides an introduction to drop-in replacement biofuels, the options amongst ...

Bhargava, Alok (Alok Kishore)

2011-01-01T23:59:59.000Z

248

A quasi-static model of drop impact  

E-Print Network [OSTI]

We develop a conceptually simple theoretical model of non-wetting drop impact on a rigid surface at small Weber numbers. Flat and curved impactor surfaces are considered, and the influence of surface curvature is elucidated. ...

Bush, John W. M.

249

Heat transfer and pressure drop in tape generated swirl flow  

E-Print Network [OSTI]

The heat transfer and pressure drop characteristics of water in tape generated swirl flow were investigated. The test sections were electrically heated small diameter nickel tubes with tight fitting full length Inconel ...

Lopina, Robert F.

1967-01-01T23:59:59.000Z

250

Pressure drop with surface boiling in small-diameter tubes  

E-Print Network [OSTI]

Pressure drop for water flowing in small-diameter tubes under isothermal, nonboiling, and surface-boiling conditions was investigated. Experimental results for local pressure gradient and heattransfer coefficients are ...

Dr?mer, Thomas

1964-01-01T23:59:59.000Z

251

Plasticity of metal wires in torsion: molecular dynamics and dislocation dynamics simulations  

E-Print Network [OSTI]

Plasticity of metal wires in torsion: molecular dynamics and dislocation dynamics simulations-4040 Abstract The orientation dependent plasticity in metal nanowires is investigated using molecular dynamics metal wires controls the mechanisms of plastic deformation. For wires oriented along 110 , dislocations

Cai, Wei

252

E-Print Network 3.0 - adding wire nets Sample Search Results  

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

of applications. What is the 1-Wire Net? The 1-Wire net... architecture that uses a resistor pull-up to a nominal 5V supply at the master. A 1-Wire net-based system... interfaces...

253

Design of automotive X-by-Wire systems Cdric Wilwert  

E-Print Network [OSTI]

Design of automotive X-by-Wire systems Cédric Wilwert PSA Peugeot - Citroën 92000 La Garenne Phone : +33 3 83 58 17 62 simonot@loria.fr CONTENTS Design of automotive X-by-Wire systems ................................................................................................................................ 9 3.2 Main time-triggered protocols for automotive industry

Paris-Sud XI, Université de

254

Carbon Fiber Components with Integrated Wiring for Millirobot Prototyping *  

E-Print Network [OSTI]

Carbon Fiber Components with Integrated Wiring for Millirobot Prototyping * Ranjana Sahai Erik a simple four bar mechanism as an example. Finally, the tests show that the wiring loop over a flexure the folded stainless steel triangles and polyester flexures. Hence, we decided to use carbon fiber instead

Fearing, Ron

255

Superconducting Wires Enabled by Nanodots wins Nano50TM Award  

E-Print Network [OSTI]

includes nanoscale columns of non-superconducting material embedded within the superconductorSuperconducting Wires Enabled by Nanodots wins Nano50TM Award HTS Wires Enabled via 3D Self-Assembly of Insulating Nanodots Background · For most large-scale applications of high-temperature superconducting (HTS

256

Wire Congestion And Thermal Aware 3D Global Placement  

E-Print Network [OSTI]

Wire Congestion And Thermal Aware 3D Global Placement Karthik Balakrishnan, Vidit Nanda, Siddharth compro- mising total wirelength and via count. Our approach consists of two phases. First, we use a multi and global routing for global wire congestion and maximum temperature reduction. Our experimental results

Lim, Sung Kyu

257

Drop tests of the Three Mile Island knockout canister  

SciTech Connect (OSTI)

A type of Three Mile Island Unit 2 (TMI-2) defueling canister, called a ''knockout'' canister, was subjected to a series of drop tests at the Oak Ridge National Laboratory's Drop Test Facility. These tests were designed to confirm the structural integrity of internal fixed neutron poisons in support of a request for NRC licensing of this type of canister for the shipment of TMI-2 reactor fuel debris to the Idaho National Engineering Laboratory (INEL) for the Core Examination R and D Program. Work conducted at the Oak Ridge National Laboratory included (1) precise physical measurements of the internal poison rod configuration before assembly, (2) canister assembly and welding, (3) nondestructive examination (an initial hydrostatic pressure test and an x-ray profile of the internals before and after each drop test), (4) addition of a simulated fuel load, (5) instrumentation of the canister for each drop test, (6) fabrication of a cask simulation vessel with a developed and tested foam impact limiter, (7) use of refrigeration facilities to cool the canister to well below freezing prior to three of the drops, (8) recording the drop test with still, high-speed, and normal-speed photography, (9) recording the accelerometer measurements during impact, (10) disassembly and post-test examination with precise physical measurements, and (11) preparation of the final report.

Box, W.D.; Aaron, W.S.; Shappert, L.B.; Childress, P.C.; Quinn, G.J.; Smith, J.V.

1986-09-01T23:59:59.000Z

258

Microwave Dielectric Heating of Drops in Microfluidic Devices  

E-Print Network [OSTI]

We present a technique to locally and rapidly heat water drops in microfluidic devices with microwave dielectric heating. Water absorbs microwave power more efficiently than polymers, glass, and oils due to its permanent molecular dipole moment that has a large dielectric loss at GHz frequencies. The relevant heat capacity of the system is a single thermally isolated picoliter drop of water and this enables very fast thermal cycling. We demonstrate microwave dielectric heating in a microfluidic device that integrates a flow-focusing drop maker, drop splitters, and metal electrodes to locally deliver microwave power from an inexpensive, commercially available 3.0 GHz source and amplifier. The temperature of the drops is measured by observing the temperature dependent fluorescence intensity of cadmium selenide nanocrystals suspended in the water drops. We demonstrate characteristic heating times as short as 15 ms to steady-state temperatures as large as 30 degrees C above the base temperature of the microfluidic device. Many common biological and chemical applications require rapid and local control of temperature, such as PCR amplification of DNA, and can benefit from this new technique.

David Issadore; Katherine J. Humphry; Keith A. Brown; Lori Sandberg; David Weitz; Robert M. Westervelt

2009-01-09T23:59:59.000Z

259

Method and apparatus for diamond wire cutting of metal structures  

DOE Patents [OSTI]

A method and apparatus for diamond wire cutting of metal structures, such as nuclear reactor vessels, is provided. A diamond wire saw having a plurality of diamond beads with beveled or chamfered edges is provided for sawing into the walls of the metal structure. The diamond wire is guided by a plurality of support structures allowing for a multitude of different cuts. The diamond wire is cleaned and cooled by CO.sub.2 during the cutting process to prevent breakage of the wire and provide efficient cutting. Concrete can be provided within the metal structure to enhance cutting efficiency and reduce airborne contaminants. The invention can be remotely controlled to reduce exposure of workers to radioactivity and other hazards.

Parsells, Robert; Gettelfinger, Geoff; Perry, Erik; Rule, Keith

2005-04-19T23:59:59.000Z

260

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.

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

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

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

262

E-Print Network 3.0 - all-pressure fluid drop Sample Search Results  

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

and Environmental Engineering, University of California at Santa Barbara Collection: Engineering 4 Drop Impact of Newtonian and Elastic Fluids Submitted by Summary: Drop...

263

E-Print Network 3.0 - allostery wiring diagrams Sample Search...  

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

of the relationship between temperature and electrical resistance for a wire, a resistor, and a superconductor... resistance of a wire, a resistor, and a superconductor?"...

264

To connect to Boiler Television, you will need to provide a coaxial cable to connect your television set to the cable wall outlet. In connecting the coaxial  

E-Print Network [OSTI]

To connect to Boiler Television, you will need to provide a coaxial cable to connect your? By providing this initial information, you help Boiler Television staff assess and resolve this issue as soon for use with any University Residences work request -- not just for the Boiler Television system. Set

Ginzel, Matthew

265

Reduction of interference on substation low voltage wiring  

SciTech Connect (OSTI)

This paper describes test results and mitigation methods of electromagnetic interference (EMI) on control and low voltage circuits in substations caused by air disconnect switch operation. The tests are focused on a comparison between unshielded and shielded circuits from capacitively coupled voltage transformers (CCVT) and other equipment circuits in the vicinity. New test data are presented comparing unshielded and shielded cables and transient currents on all connections to the CCVT including the pedestal and ground strap. The paper gives a practical and understandable explanation of the causes of EMI in substations and how shielded cable and parallel ground conductors reduce interference. Design guidelines are listed in the Conclusion.

Gavazza, R.J. [Pacific Gas and Electric Co., San Francisco, CA (United States)] [Pacific Gas and Electric Co., San Francisco, CA (United States); Wiggins, C.M. [Carl M. Wiggins and Associates, Friendswood, TX (United States)] [Carl M. Wiggins and Associates, Friendswood, TX (United States)

1996-07-01T23:59:59.000Z

266

Literature review of environmental qualification of safety-related electric cables: Summary of past work. Volume 1  

SciTech Connect (OSTI)

This report summarizes the findings from a review of published documents dealing with research on the environmental qualification of safety-related electric cables used in nuclear power plants. Simulations of accelerated aging and accident conditions are important considerations in qualifying the cables. Significant research in these two areas has been performed in the US and abroad. The results from studies in France, Germany, and Japan are described in this report. In recent years, the development of methods to monitor the condition of cables has received special attention. Tests involving chemical and physical examination of cable`s insulation and jacket materials, and electrical measurements of the insulation properties of cables are discussed. Although there have been significant advances in many areas, there is no single method which can provide the necessary information about the condition of a cable currently in service. However, it is possible that further research may identify a combination of several methods that can adequately characterize the cable`s condition.

Subudhi, M. [Brookhaven National Lab., Upton, NY (United States)

1996-04-01T23:59:59.000Z

267

Device to facilitate moving an electrical cable of an electric vehicle charging station and method of providing the same  

DOE Patents [OSTI]

Some embodiments include a device to facilitate moving an electrical cable of an electric vehicle charging station. Other embodiments of related systems and methods are also disclosed.

Karner, Donald B

2014-04-29T23:59:59.000Z

268

Outages of electric power supply resulting from cable failures Boston Edison Company system  

SciTech Connect (OSTI)

Factual data are provided regarding 5 electric power supply interruptions that occurred in the Boston Metropolitan area during April to June, 1979. Common to all of these outages was the failure of an underground cable as the initiating event, followed by multiple equipment failures. There was significant variation in the voltage ratings and types of cables which failed. The investigation was unable to delineate a single specific Boston Edison design operating or maintenance practice that could be cited as the cause of the outages. After reviewing the investigative report the following actions were recommended: the development and implementation of a plan to eliminate the direct current cable network; develop a network outage restoration plan; regroup primary feeder cables wherever possible to minimize the number of circuits in manholes, and to separate feeders to high load density areas; develop a program to detect incipient cable faults; evaluate the separation of the north and south sections of Back Bay network into separate networks; and, as a minimum, install the necessary facilities to make it possible to re-energize one section without interfering with the other; and re-evaluate the cathodic protection scheme where necessary. (LCL)

None

1980-07-01T23:59:59.000Z

269

Final Report: MATERIALS, STRANDS, AND CABLES FOR SUPERCONDUCTING ACCELERATOR MAGNETS [Grant Number DE-SC0010312  

SciTech Connect (OSTI)

Our program consisted of the two components: Strand Research and Cable Research, with a focus on Nb3Sn, Bi2212, and YBCO for accelerator magnet applications. We demonstrated a method to refine the grains in Nb3Sn by a factor of two, reaching 45 nm grain sizes, and layer Jcs of 6 kA/mm2 at 12 T. W also measured conductor magnetization for field quality. This has been done both with Nb3Sn conductor, as well as Bi:2212 strand. Work in support of quench studies of YBCO coils was also performed. Cable loss studies in Nb3Sn focused on connecting and comparing persistent magnetization and coupling magnetization for considering their relative impact on HEP machines. In the area of HTS cables, we have investigated both the quench in multistrand YBCO CORC cables, as well as the magnetization of these cables for use in high field magnets. In addition, we examined the magnetic and thermal properties of large (50 T) solenoids.

Sumption, Mike; Collings, E.

2014-10-29T23:59:59.000Z

270

Wire number dependence of the implosion dynamics, stagnation, and radiation output of tungsten wire arrays at Z driver  

SciTech Connect (OSTI)

We report results of the experimental campaign, which studied the initiation, implosion dynamics, and radiation yield of tungsten wire arrays as a function of the wire number. The wire array dimensions and mass were those of interest for the Z-pinch driven Inertial Confinement Fusion (ICF) program. An optimization study of the x-ray emitted peak power, rise time, and full width at half maximum was effectuated by varying the wire number while keeping the total array mass constant and equal to {approx}5.8 mg. The driver utilized was the {approx}20-MA Z accelerator before refurbishment in its usual short pulse mode of 100 ns. We studied single arrays of 20-mm diameter and 1-cm height. The smaller wire number studied was 30 and the largest 600. It appears that 600 is the highest achievable wire number with present day's technology. Radial and axial diagnostics were utilized including crystal monochromatic x-ray backlighter. An optimum wire number of {approx}375 was observed which was very close to the routinely utilized 300 for the ICF program in Sandia.

Mazarakis, Michael G.; Stygar, William A.; Sinars, Daniel B.; Cuneo, Michael E.; Nash, Thomas J.; Chandler, Gordon A.; Keith Matzen, M.; Porter, John L.; Struve, Kenneth W.; McDaniel, Dillon H. [Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185 (United States); Deeney, Christopher E. [National Nuclear Security Administration, Washington, D.C. 20585 (United States); Douglas, Melissa R. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Chittenden, Jerry [Imperial College, London, SW and 2BW (United Kingdom)

2011-11-15T23:59:59.000Z

271

Meso-scale controlled motion for a microfluidic drop ejector.  

SciTech Connect (OSTI)

The objective of this LDRD was to develop a uniquely capable, novel droplet solution based manufacturing system built around a new MEMS drop ejector. The development all the working subsystems required was completed, leaving the integration of these subsystems into a working prototype still left to accomplish. This LDRD report will focus on the three main subsystems: (1) MEMS drop ejector--the MEMS ''sideshooter'' effectively ejected 0.25 pl drops at 10 m/s, (2) packaging--a compact ejector package based on a modified EMDIP (Electro-Microfluidic Dual In-line Package--SAND2002-1941) was fabricated, and (3) a vision/stage system allowing precise ejector package positioning in 3 dimensions above a target was developed.

Galambos, Paul C.; Givler, Richard C.; Pohl, Kenneth Roy; Czaplewski, David A.; Luck, David L.; Braithwaite, Mark J.; Atwood, Clinton L.; Benavides, Gilbert Lawrence

2004-12-01T23:59:59.000Z

272

Counting Rises, Levels and Drops in Compositions 1 Counting Rises, Levels and  

E-Print Network [OSTI]

Counting Rises, Levels and Drops in Compositions 1 Counting Rises, Levels and Drops in Compositions Mansour Department of Mathematics, Haifa University, Israel #12;Counting Rises, Levels and Drops;Counting Rises, Levels and Drops in Compositions 3 Definitions · A composition = 12 . . . m of n N

Heubach, Silvia

273

Physical test report for drop test of a 9974 radioactive material shipping packaging  

SciTech Connect (OSTI)

This report presents the drop test results for the 9974 radioactive material shipping package being dropped onto 6-inch diameter, 40-inch long puncture pin. Also reported are the drop test resuls for a 30-foot impact that failed the drum confinement boundary. The purpose of these drops was to show that the package lid would remain attached to the drum.

Blanton, P.S. [Westinghouse Savannah River Company, AIKEN, SC (United States)

1997-10-01T23:59:59.000Z

274

"Instantaneous superluminality" in a bimetallic wire consisting of a superconducting aluminum wire plated with a thick copper covering  

E-Print Network [OSTI]

Maxwell's equations applied to a superconducting wire (aluminum) covered with a thick nonsuperconducting sheath (copper), in combination with the superfluid velocity equation for Cooper pairs which obeys DeWitt's minimal coupling rule, implies an instantaneous streamline flow that leads to the phenomenon of "instantaneous superluminality," in which a Cooper pair can disappear from the left end of the wire and instantaneously reappear at the right end of the wire. Relativistic causality is not violated by this superluminal phenomenon, which involves analytic, finite bandwidth waveforms whose spectrum lies below the BCS gap frequency. Experiments are proposed to test these ideas.

R. Y. Chiao

2010-11-14T23:59:59.000Z

275

Maximal air bubble entrainment at liquid drop impact  

E-Print Network [OSTI]

At impact of a liquid drop on a solid surface an air bubble can be entrapped. Here we show that two competing effects minimize the (relative) size of this entrained air bubble: For large drop impact velocity and large droplets the inertia of the liquid flattens the entrained bubble, whereas for small impact velocity and small droplets capillary forces minimize the entrained bubble. However, we demonstrate experimentally, theoretically, and numerically that in between there is an optimum, leading to maximal air bubble entrapment. Our results have a strong bearing on various applications in printing technology, microelectronics, immersion lithography, diagnostics, or agriculture.

Bouwhuis, Wilco; Tran, Tuan; Keij, Diederik L; Winkels, Koen G; Peters, Ivo R; van der Meer, Devaraj; Sun, Chao; Snoeijer, Jacco H; Lohse, Detlef

2012-01-01T23:59:59.000Z

276

Xcel Energy- Farm Re-Wiring Loan Program (Wisconsin)  

Broader source: Energy.gov [DOE]

Xcel Energy operates the farm rewiring loan program to help its agricultural customers install safer and more energy efficient electrical wiring. The loan program charges 3% interest with terms of...

277

alloy thin wires: Topics by E-print Network  

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

turbulent flow of superfluid helium. We used a standard Pt-Rh hot-wire anemometer and overheat it up to 21 K in a pressurized liquid helium turbulent round jet at temperatures...

278

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

279

Quantum computer of wire circuit architecture  

E-Print Network [OSTI]

First solid state quantum computer was built using transmons (cooper pair boxes). The operation of the computer is limited because of using a number of the rigit cooper boxes working with fixed frequency at temperatures of superconducting material. Here, we propose a novel architecture of quantum computer based on a flexible wire circuit of many coupled quantum nodes containing controlled atomic (molecular) ensembles. We demonstrate wide opportunities of the proposed computer. Firstly, we reveal a perfect storage of external photon qubits to multi-mode quantum memory node and demonstrate a reversible exchange of the qubits between any arbitrary nodes. We found optimal parameters of atoms in the circuit and self quantum modes for quantum processing. The predicted perfect storage has been observed experimentally for microwave radiation on the lithium phthalocyaninate molecule ensemble. Then also, for the first time we show a realization of the efficient basic two-qubit gate with direct coupling of two arbitrary nodes by using appropriate atomic frequency shifts in the circuit nodes. Proposed two-qubit gate runs with a speed drastically accelerated proportionally to the number of atoms in the node. The direct coupling and accelerated two-qubit gate can be realized for large number of the circuit nodes. Finally, we describe two and three-dimensional scalable architectures that pave the road to construction of universal multi-qubit quantum computer operating at room temperatures.

S. A. Moiseev; F. F. Gubaidullin; S. N. Andrianov

2010-01-07T23:59:59.000Z

280

Development of bending characteristics for the TPX TF magnet coil cable-in-conduit conductor  

SciTech Connect (OSTI)

The conductor for the toroidal field (TF) magnet coils for the Tokamak Physics experiment (TPX) is an assembly of stranded Nb{sub 3}Sn superconductor sheathed by an Incoloy 908 conduit. The coil shape, when coupled with stiffness of the cable-in-conduit conductor (CICC) is such that conventional magnet winding techniques cannot be utilized. Therefore a bending and forming method will be employed in the TF coils. The cable will be reacted after bending because the reaction process hardens the conduit and also lowers the strain the cable can withstand without performance degradation. The Incoloy 908 conduit also work hardens quickly, necessitating the production of the required coil shape in one step without correction. This paper discusses the limiting processes for forming the TPX TF magnet geometry, the methods utilized in establishing the CICC bending characteristics and the methods employed to account for material springback so that a coil can be manufactured accurately and efficiently.

Grut, K.E.; Holbrook, R.L.; Hook, E.; Antaya, T.A. [Babcock and Wilcox, Lynchburg, VA (United States)

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

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

282

An investigation into the properties and characteristics of homogeneous tapered cables  

E-Print Network [OSTI]

in detail in this paper leading to configurations which have been labeled E-tapered and Constant Stress Catenary. While these are optimized for their specific applications, they are not necessarily the best for devia- tions from design conditions... or to reduce to a ratio ys T "- A = ea T A 0 0 (8) Eqs. 5 and 8 constitute the descriptive equations for what Nowatzki called a "perfectly tapered cable". Herein, this will be referred to as an E-tapered cable. In Fig. 7, Eq. 9 is plotted using a unit...

deCastongrene, Russell Othomar

1975-01-01T23:59:59.000Z

283

The University of Texas at Austin September 30, 2011 Communications Optical Fiber Backbone Cabling 27 13 23-1  

E-Print Network [OSTI]

, as required by law: 1. National Electric Code (NEC) 2. ANSI/IEEE C2 ­ National Electrical Safety Code C. ANSI/TIA-568-C.0, Generic Telecommunications Cabling for Customer Premises 3. ANSI/TIA-568-C.3, Optical Fiber Cabling Components Standard. 4. ANSI/TIA/EIA-604-10A, FOCIS 10, Fiber Optic Connector

Dawson, Clint N.

284

Numerical Investigation of the Dynamics of drop formation and pitch ...  

E-Print Network [OSTI]

Dec 3, 2012 ... Modeling and simulations of drop pinch-off from liquid crystal filaments and the leaky ... c Institute of Software, Chinese Academy of Sciences, Beijing 100090, China ... An energy-based, phase field model is developed for the coupling of two incompressible, ...... 5.2 show the comparisons of zero level sets.

2012-12-29T23:59:59.000Z

285

CFD analysis uncovers ways to lower condenser pressure drop  

SciTech Connect (OSTI)

This article describes the use of computer simulation to evaluate condenser performance and evaluate proposed modifications to the condenser. The topics of the article include the basic principles of computational fluid dynamics (CFD), surface condenser design, performance evaluation, pressure drop reduction, application to a United Kingdom utility.

Rhodes, N.; Bell, R.J.

1994-05-01T23:59:59.000Z

286

Two phase pressure drop in inclined and vertical pipes  

E-Print Network [OSTI]

A method of calculating the pressure drop in inclined and vertical oil-gas wells is proposed. The data used to establish the method is from a variety of sources but is largely from air and water flowing in systems close ...

Griffith, P.

1973-01-01T23:59:59.000Z

287

Drop Off & Parking Information Photo courtesy of Fowler Museum  

E-Print Network [OSTI]

KIDSMUSE Drop Off & Parking Information Photo courtesy of Fowler Museum The Fowler Museum-up of campers is available near the Museum. Enter UCLA from Sunset Blvd. at the Westwood Plaza entrance. Take Museum. You must bring your child into the Museum on the first day of camp. The rest of the week you may

Grether, Gregory

288

Diamond Wire Saw for Precision Machining of Laser Target Components  

SciTech Connect (OSTI)

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

289

Constitutive correlations for wire-wrapped subchannel analysis under forced and mixed convection conditions. Part 1. [LMFBR  

SciTech Connect (OSTI)

A simple subchannel analysis method based on the ENERGY series of codes, ENERGY-IV, has been established for predicting the temperature field in a single isolated wire-wrapped Liquid Metal Fast Breeder Reactor (LMFBR) subassembly under steady state forced and mixed convection conditions. The ENERGY-IV is a totally empirical code employed for fast running purposes and requires well calibrated lead length averaged input parameters to achieve satisfactory predictions. These input parameters were identified to be the inlet flow split parameters, the subchannel friction factors, the interchannel mixing parameters, the conduction shape factor, and the transverse velocity at the edge gap. Experiments were performed in a 37-pin wire-wrapped rod bundle with a geometry between that of a typical LMFBR fuel subassembly and blanket subassembly for filling the gap in the available data base for the input parameters. The isokinetic extraction method for measuring subchannel velocity, the pitot-static probe for measuring pressure drop, and the salt tracer injection method for estimating the interchannel mixing, were used in these experiments.

Cheng, S.K.; Todreas, N.E.

1984-08-01T23:59:59.000Z

290

State of the art analysis of online fault location on AC cables in underground transmission systems  

E-Print Network [OSTI]

on transmission level fault location methods have been focused on overhead lines. Because of the very different- termine the fault location. Because only one end meas- urements are used, the algorithm is derived usingState of the art analysis of online fault location on AC cables in underground transmission systems

Bak, Claus Leth

291

Optimal Selection of AC Cables for Large Scale Offshore Wind Farms  

E-Print Network [OSTI]

Optimal Selection of AC Cables for Large Scale Offshore Wind Farms Peng Hou, Weihao Hu, Zhe Chen@et.aau.dk, whu@iet.aau.dk, zch@iet.aau.dk Abstract--The investment of large scale offshore wind farms is high the operational requirements of the offshore wind farms and the connected power systems. In this paper, a new cost

Hu, Weihao

292

An Energy-Efficient Communication Scheme in Wireless Cable Sensor Networks  

E-Print Network [OSTI]

An Energy-Efficient Communication Scheme in Wireless Cable Sensor Networks Xiao Chen Department of Computer Science U. S. Naval Postgraduate School Monterey, CA 93943 ncrowe@nps.edu Abstract and communication. Like wireless sensor networks with point sensors, energy-efficient communication is still

Rowe, Neil C.

293

Engineering in the service of science; construction of a cabled ocean observatory  

E-Print Network [OSTI]

Engineering in the service of science; construction of a cabled ocean observatory Mr. Peter Phibbs for maintenance can quickly make a system uneconomic. Peter Phibbs was project manager for the $75M construction ocean observatory, and went into operation fifteen months ago. The infrastructure demonstrates not only

Frandsen, Jannette B.

294

K.K. Gan ATLAS Tracker Ungrade Workshop 1 Bandwidths of Micro Twisted-Pair Cables  

E-Print Network [OSTI]

/fall time after irradiation? What is optical power after irradiation? What current is needed for annealing Spliced SIMM-GRIN Fibers and Radiation Hardness of PIN/VCSEL Dec 8, 2006 W. Fernando, K.K. Gan, A. Law, H Bandwidth of micro twisted-pair cables Bandwidth of fusion spliced SIMM-GRIN fibers Radiation hardness

Gan, K. K.

295

A Mixed Model for Real-Time, Interactive Simulation of a Cable Passing Through Several Pulleys  

SciTech Connect (OSTI)

A model of a cable and pulleys is presented that can be used in Real Time Computer Graphics applications. The model is formulated by the coupling of a damped spring and a variable coefficient wave equation, and can be integrated in more complex mechanical models of lift systems, such as cranes, elevators, etc. with a high degree of interactivity.

Garcia-Fernandez, Ignacio; Pla-Castells, Marta; Martinez-Dura, Rafael J. [Instituto de Robotica. Universidad de Valencia (Spain)

2007-09-06T23:59:59.000Z

296

Analysis Framework for Cooperating Mobile Cable Robots Xiaobo Zhou, Chin Pei Tang and Venkat Krovi  

E-Print Network [OSTI]

of Mechanical and Aerospace Engineering, State University of New York at Buffalo, Buffalo, NY 14260 USA xzhou9 energy consumption, ease of assembly/disassembly and reconfiguration. Cooperative payload manipulation design and analysis of cooperative mobile cable robots, building upon knowledge base of multi

Krovi, Venkat

297

On the use of doped polyethylene as an insulating material for HVDC cables  

SciTech Connect (OSTI)

The merits of HVDC cables with polymeric insulation are well recognized. However, the development of such cables is still hampered due to the problems resulting from the complicated dependence of the electrical conductivity of the polymer on the temperature and the dc electric field and the effects of space charge accumulation in this material. Different methods have been suggested to solve these problems yet none of these methods seem to give a conclusive solution. The present report provides, firstly a critical review of the previous works reported in the literature concerning the development of HVDC cables with polymeric insulation. Different aspects of those works are examined and discussed. Secondly, an account is given on an investigation using low density polyethylene (LDPE) doped with an inorganic additive as a candidate insulating material for HVDC cables. Preliminary results from measurements of dc breakdown strength and insulation resistivity of both the undoped and the doped materials are presented. It is shown that the incorporation of an inorganic additive into LDPE has improved the performance of the doped material under polarity reversal dc conditions at room temperature. Moreover, the dependency of the insulation resistivity on temperature for the doped material appears to be beneficially modified.

Khalil, M.S. [Sultan Qaboos Univ., Muscat (Oman)

1996-12-31T23:59:59.000Z

298

Characterization of underground cable incipient failures from on-line monitoring of underground distribution power systems  

E-Print Network [OSTI]

With the imminent re-regulation of the power industry and investor owned utilities becoming more cost conscious, the need for an on-line, non-destructive, incipient cable fault detection system is prevalent. With such an incipient fault detection...

Cardoso, Jesus

1999-01-01T23:59:59.000Z

299

Multisublevel Magnetoquantum Conductance in Single and Coupled Double Quantum Wires  

SciTech Connect (OSTI)

We study the ballistic and diffusive magnetoquantum transport using a typical quantum point contact geometry for single and tunnel-coupled double wires that are wide (less than or similar to1 mum) in one perpendicular direction with densely populated sublevels and extremely confined in the other perpendicular (i.e., growth) direction. A general analytic solution to the Boltzmann equation is presented for multisublevel elastic scattering at low temperatures. The solution is employed to study interesting magnetic-field dependent behavior of the conductance such as a large enhancement and quantum oscillations of the conductance for various structures and field orientations. These phenomena originate from the following field-induced properties: magnetic confinement, displacement of the initial- and final-state wave functions for scattering, variation of the Fermi velocities, mass enhancement, depopulation of the sublevels and anticrossing (in double quantum wires). The magnetoconductance is strikingly different in long diffusive (or rough. dirty) wires from the quantized conductance in short ballistic (or clean) wires. Numerical results obtained for the rectangular confinement potentials in the growth direction are satisfactorily interpreted in terms of the analytic solutions based on harmonic confinement potentials. Some of the predicted features of the field-dependent diffusive and quantized conductances are consistent with recent data from GaAs/AlxGa1-xAs double quantum wires.

Lyo, Sungkwun Ken; Huang, Danhong

2001-09-15T23:59:59.000Z

300

Feasibility study of Nb3Al Rutherford cable for high field accelerator magnet application  

SciTech Connect (OSTI)

Feasibility study of Cu stabilized Nb{sub 3}Al strand and Rutherford cable for the application to high field accelerator magnets are being done at Fermilab in collaboration with NIMS. The Nb{sub 3}Al strand, which was developed and manufactured at NIMS in Japan, has a non-copper Jc of about 844 A/mm{sup 2} at 15 Tesla at 4.2 K, a copper content of 50%, and filament size of about 50 microns. Rutherford cables with 27 Nb{sub 3}Al strands of 1.03 mm diameter were fabricated and tested. Quench tests on a short cable were done to study its stability with only its self field, utilizing a high current transformer. A pair of 2 meter long Nb{sub 3}Al cables was tested extensively at CERN at 4.3 and 1.9 K up to 11 Tesla including its self field with a high transport current of 20.2 kA. In the low field test we observed instability near splices and in the central region. This is related to the flux-jump like behavior, because of excessive amount of Nb in the Nb{sub 3}Al strand. There is possibility that the Nb in Nb{sub 3}Al can cause instability below 2 Tesla field regions. We need further investigation on this problem. Above 8 Tesla, we observed quenches near the critical surface at fast ramp rate from 1000 to 3000 A/sec, with quench velocity over 100 m/sec. A small racetrack magnet was made using a 14 m of Rutherford cable and successfully tested up to 21.8 kA, corresponding to 8.7 T.

Yamada, R.; /Fermilab; Kikuchi, A.; /Tsukuba Magnet Lab.; Ambrosio, G.; Andreev, N.; Barzi, E.; Cooper, C.; Feher, S.; Kashikhin, V.V.; Lamm, M.; Novitski, I.; /Fermilab; Takeuchi, T.; /Tsukuba Magnet Lab.; Tartaglia, M.; Turrioni, D.; /Fermilab; Verweij, A.P.; /CERN; Wake, M.; Willering, G; /Tsukuba Magnet Lab.; Zlobin, A.V.; /Fermilab

2006-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

Electrically modulated dynamic spreading of drops on soft surfaces  

E-Print Network [OSTI]

The intricate interaction between the deformability of a substrate and the dynamic spreading of a liquid drop on the same, under the application of an electrical voltage, has remained far from being well understood. Here, we demonstrate that electrospreading dynamics on soft substrates is dictated by the combined interplay of electrocapillarity, the wetting line friction and the viscoelastic energy dissipation at the contact line. Our results reveal that during such electro-elastocapillarity mediated spreading of a sessile drop, the contact radius evolution exhibits a universal power law in a substrate elasticity based non-dimensional time, with an electric potential dependent spreading exponent. Simultaneously, the macroscopic dynamic contact angle variation follows a general power law in the contact line velocity, normalized by elasticity dependent characteristic velocity scale. Our results are likely to provide the foundation for the development of a plethora of new applications involving droplet manipulations by exploiting the interplay between electrically triggered spreading and substrate-compliance over interfacial scales.

Ranabir Dey; Ashish Daga; Sunando DasGupta; Suman Chakraborty

2015-04-07T23:59:59.000Z

302

Evaluation of Cask Drop Criticality Issues at K Basin  

SciTech Connect (OSTI)

An analysis of ability of Multi-canister Overpack (MCO) to withstand drops at K Basin without exceeding the criticality design requirements. Report concludes the MCO will function acceptably. The spent fuel currently residing in the 105 KE and 105 KW storage basins will be placed in fuel storage baskets which will be loaded into the MCO cask assembly. During the basket loading operations the MCO cask assembly will be positioned near the bottom of the south load out pit (SLOP). The loaded MCO cask will be lifted from the SLOP transferred to the transport trailer and delivered to the Cold Vacuum Drying Facility (CVDF). In the wet condition there is a potential for criticality problems if significant changes in the designed fuel configurations occur. The purpose of this report is to address structural issues associated with criticality design features for MCO cask drop accidents in the 105 KE and 105 KW facilities.

GOLDMANN, L.H.

2000-01-24T23:59:59.000Z

303

Mechanical optimisation of a high-precision fast wire scanner at CERN  

E-Print Network [OSTI]

Wire scanners are instruments used to measure the transverse beam prole in particle accelerators by passing a thin wire through the particle beam. To avoid the issues of vacuum leakage through the bellows and wire failure related to current designs of wire scanners, a new concept for a wire scanner has been developed at CERN. This design has all moving parts inside the beam vacuum and has a nominal wire scanning speed of 20 m/s. The demands on the design associated with this together with the high precision requirements create a need for\

Samuelsson, Sebastian; Veness, Raymond

304

Optical add/drop filter for wavelength division multiplexed systems  

DOE Patents [OSTI]

An optical add/drop filter for wavelength division multiplexed systems and construction methods are disclosed. The add/drop filter includes a first ferrule having a first pre-formed opening for receiving a first optical fiber; an interference filter oriented to pass a first set of wavelengths along the first optical fiber and reflect a second set of wavelengths; and, a second ferrule having a second pre-formed opening for receiving the second optical fiber, and the reflected second set of wavelengths. A method for constructing the optical add/drop filter consists of the steps of forming a first set of openings in a first ferrule; inserting a first set of optical fibers into the first set of openings; forming a first set of guide pin openings in the first ferrule; dividing the first ferrule into a first ferrule portion and a second ferrule portion; forming an interference filter on the first ferrule portion; inserting guide pins through the first set of guide pin openings in the first ferrule portion and second ferrule portion to passively align the first set of optical fibers; removing material such that light reflected from the interference filter from the first set of optical fibers is accessible; forming a second set of openings in a second ferrule; inserting a second set of optical fibers into the second set of openings; and positioning the second ferrule with respect to the first ferrule such that the second set of optical fibers receive the light reflected from the interference filter.

Deri, Robert J. (Pleasanton, CA); Strand, Oliver T. (Castro Valley, CA); Garrett, Henry E. (Livermore, CA)

2002-01-01T23:59:59.000Z

305

Fabrication of sub-15?nm aluminum wires by controlled etching  

SciTech Connect (OSTI)

We describe a method for the fabrication of uniform aluminum nanowires with diameters below 15?nm. Electron beam lithography is used to define narrow wires, which are then etched using a sodium bicarbonate solution, while their resistance is simultaneously measured in-situ. The etching process can be stopped when the desired resistance is reached, and can be restarted at a later time. The resulting nanowires show a superconducting transition as a function of temperature and magnetic field that is consistent with their smaller diameter. The width of the transition is similar to that of the lithographically defined wires, indicating that the etching process is uniform and that the wires are undamaged. This technique allows for precise control over the normal state resistance and can be used to create a variety of aluminum nanodevices.

Morgan-Wall, T.; Hughes, H. J.; Hartman, N.; Markovi?, N. [Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218 (United States); McQueen, T. M. [Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218 (United States); Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218 (United States)

2014-04-28T23:59:59.000Z

306

Characterization of a high-temperature superconducting conductor on round core cables in magnetic fields up to 20 T  

SciTech Connect (OSTI)

The next generation of high-field magnets that will operate at magnetic fields substantially above 20 T, or at temperatures substantially above 4.2 K, requires high-temperature superconductors (HTS). Conductor on round core (CORC) cables, in which RE-Ba{sub 2}Cu{sub 3}O{sub 7-{delta}} (RE = rare earth) (REBCO) coated conductors are wound in a helical fashion on a fl?exible core, are a practical and versatile HTS cable option for low-inductance, high-field magnets. We performed the first tests of CORC magnet cables in liquid helium in magnetic fields of up to 20 T. A record critical current I{sub c} of 5021 A was measured at 4.2 K and 19 T. In a cable with an outer diameter of 7.5 mm, this value corresponds to an engineering current density J{sub e} of 114 A mm{sup -2} , the highest J{sub e} ever reported for a superconducting cable at such high magnetic fields. Additionally, the first magnet wound from an HTS cable was constructed from a 6 m-long CORC cable. The 12-turn, double-layer magnet had an inner diameter of 9 cm and was tested in a magnetic field of 20 T, at which it had an I{sub c} of 1966 A. The cables were quenched repetitively without degradation during the measurements, demonstrating the feasibility of HTS CORC cables for use in high-field magnet applications.

van der Laan, Danko [Advanced Conductor Technologies; Noyes, Patrick [National High Magnetic Field Laboratory; Miller, George [National High Magnetic Field Laboratory; Weijers, Hubertus [National High Magnetic Field Laboratory; Willering, Gerard [CERN

2013-02-13T23:59:59.000Z

307

COLLEGE STATION --The first thought of a barbed wire collection might be an image of a big ball of tangled, rusted wire. But Gaylon Lane, a retired soil scientist, has neatly assembled some 269 pieces of  

E-Print Network [OSTI]

COLLEGE STATION -- The first thought of a barbed wire collection might be an image of a big ball to grow after acquiring the famed "Underwood" wire, patented in 1878. This brand of wire featured barbs

308

Dynamic Structure Formation at the Fronts of Volatile Liquid Drops Y. Gotkis,1  

E-Print Network [OSTI]

video clips [5]). As a (mother) drop of isopropyl alcohol (IPA) is deposited on a surface, it expands drops of IPA or IPA-deionized water (DIW) mixtures of a typical size of 30­50 mm3

Kondic, Lou

309

Fidelity of Analytic Drop Size Distributions in Drizzling Stratiform Clouds Based on Large-Eddy Simulations  

E-Print Network [OSTI]

Cloud microphysical parameterizations and retrievals rely heavily on knowledge of the shape of drop size distributions (DSDs). Many investigations assume that DSDs in the entire or partial drop size range may be approximated ...

Kogan, Yefim L.; Kogan, Zena N.; Mechem, David B.

2009-08-01T23:59:59.000Z

310

2014 Hydrogen Student Design Contest to Design Drop-In Hydrogen...  

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

2014 Hydrogen Student Design Contest to Design Drop-In Hydrogen Fueling Station 2014 Hydrogen Student Design Contest to Design Drop-In Hydrogen Fueling Station December 16, 2013 -...

311

Thermodynamic and kinetic control of the lateral Si wire growth  

SciTech Connect (OSTI)

Reproducible lateral Si wire growth has been realized on the Si (100) surface. In this paper, we present experimental evidence showing the unique role that carbon plays in initiating lateral growth of Si wires on a Si (100) substrate. Once initiated in the presence of ?5 ML of C, lateral growth can be achieved in the range of temperatures, T?=?450–650?°C, and further controlled by the interplay of the flux of incoming Si atoms with the size and areal density of Au droplets. Critical thermodynamic and kinetic aspects of the growth are discussed in detail.

Dedyulin, Sergey N., E-mail: sdedyuli@uwo.ca; Goncharova, Lyudmila V. [Department of Physics and Astronomy, The University of Western Ontario, 1151 Richmond St., London, Ontario N6A 3K7 (Canada)

2014-03-24T23:59:59.000Z

312

Diagnostics for studying the dynamics of wire array Z pinches  

SciTech Connect (OSTI)

The evolution of a wire array Z pinch encompasses a huge range of conditions--with spatial dimensions varying from micrometers to centimeters, densities from solid metal through plasmas of 10{sup 15}-10{sup 22} e{sup -} cm{sup -3}, and temperatures from sub-eV to many 100 eV. We present a summary of the diagnostics developed and used at the Imperial College MAGPIE facility to study the formation and dynamics of plasma in wire array Z pinches, describing the plasma conditions for which they are useful, their various limitations, and some of the novel diagnostic techniques applied.

Bland, S. N.; Bott, S. C.; Hall, G. N.; Lebedev, S. V.; Suzuki, F.; Ampleford, D. J.; Palmer, J. B. A.; Pikuz, S. A.; Shelkovenko, T. A. [Blackett Laboratory, Imperial College, London SW7 2BZ (United Kingdom); Sandia National Laboratories, Albuquerque, New Mexico 87123 (United States); AWE Plc., Aldermaston, Reading RG7 4PR (United Kingdom); Laboratory of Plasma Studies, Cornell University, Ithaca, New York 14853 (United States)

2006-10-15T23:59:59.000Z

313

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

SciTech Connect (OSTI)

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

Maguire, James; McNamara, Joseph

2010-06-25T23:59:59.000Z

314

Unified Communication Services Data Network Wiring Standard 11-05-2012 Page 1  

E-Print Network [OSTI]

Code (NEC) 7. National Fire Protection Association (NFPA) 8. National Electrical Manufacturers Standard Part 1: General 1.01 Section Includes A. Fiber Optic Cable B. Fiber Optic Distribution Cabinets C. Interbuilding Fiber Optic Cabling/Patch Cords D. Fiber Optic Connectors E. Interbuilding Distribution Copper

Su, Xiao

315

The influence of surface tension gradients on drop coalescence Franois Blanchette,1  

E-Print Network [OSTI]

The influence of surface tension gradients on drop coalescence François Blanchette,1 Laura Messio,2 to elucidating the influence on the coalescence process of a surface tension difference between drop coalescence may occur. Three distinct regimes, depending on the reservoir to drop surface tension ratio, R

Bush, John W.M.

316

Ratchet-like motion of a shaken drop Xavier Noblin, Richard Kofman, and Franck Celestini  

E-Print Network [OSTI]

Ratchet-like motion of a shaken drop Xavier Noblin, Richard Kofman, and Franck Celestini the underlying mechanism leading to this ratchet-like motion of the drop. Our model includes the particular case do not provide the ratchet- like asymmetry necessary to induce a net drop displace- ment. Brunet et

Boyer, Edmond

317

RISES, LEVELS, DROPS AND "+" SIGNS IN COMPOSITIONS: EXTENSIONS OF A PAPER BY  

E-Print Network [OSTI]

RISES, LEVELS, DROPS AND "+" SIGNS IN COMPOSITIONS: EXTENSIONS OF A PAPER BY ALLADI AND HOGGATT S, levels (a summand followed by itself), rises (a summand followed by a larger one), and drops (a summand of levels, rises and drops for compositions, as well as interesting connections between these quantities

Heubach, Silvia

318

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

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

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...

319

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

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

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...

320

DAMAGE DETECTION METHODS ON WIND TURBINE BLADE TESTING WITH WIRED AND WIRELESS ACCELEROMETER SENSORS  

E-Print Network [OSTI]

DAMAGE DETECTION METHODS ON WIND TURBINE BLADE TESTING WITH WIRED AND WIRELESS ACCELEROMETER turbine blade. We compare the data collected from the wireless sensors against wired sensors for nonstationary blade excitations. KEYWORDS : Structural Health Monitoring, Damage Detection, Wind Turbine

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "drop cable 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

Tantalum wire product development strategy : gaining a competitive advantage in a commodity market  

E-Print Network [OSTI]

In the face of growing competition and the commoditization in the Tantalum Wire business, H.C. Starck must find a way to differentiate their wire products from competitors in order to survive in this market. This thesis ...

Hovav, Michal

2006-01-01T23:59:59.000Z

322

Coaxial Wire Impedance Measurements of BPM Buttons for the PEP-II B-FACTORY  

E-Print Network [OSTI]

GHz) Figure 5. 1.5 cm BPM button in HER arc chamber.Wire Impedance Measurements of BPM Buttons for the PEP-lIB-WIRE IMPEDANCE MEASUREMENTS OF BPM BUTTONS FOR THE PEP-II B-

Corlett, J.N.

2011-01-01T23:59:59.000Z

323

The U.S. cable television industry : the multi-service operator organizational structure as a bundle of competencies  

E-Print Network [OSTI]

The United States cable television industry is experiencing fierce competition from telephone companies and content providers, as well as new and possibly unknown entrants. As organizations in the industry are currently ...

Moorthy, Satish K. (Satish Kumar)

2009-01-01T23:59:59.000Z

324

18 IEEE Transactions onPower Delivery, Vol. 14, No.1, January 1999 Leak Location in Fluid Filled Cables  

E-Print Network [OSTI]

such as corrosion, contractor damage, effects of stray currents, and localized pipe wear due to vibrations, a pipe. Self-contained, low and medium- pressure, fluid filled cables which have an oil channel in the middle

325

The Winch-Bot : a cable-suspended, under-actuated robot utilizing parametric self-excitation  

E-Print Network [OSTI]

A simple, compact, yet powerful robotic winch, called "Winch-Bot," is presented in this thesis. The Winch-Bot is an underactuated robot having only one controllable axis. Although hanging a load with merely one cable, it ...

Cunningham, Daniel Philip

2009-01-01T23:59:59.000Z

326

A Laser-Wire System at the ATF Extraction Line  

SciTech Connect (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

2007-02-12T23:59:59.000Z

327

An equivalent complex permeability model for litz-wire windings  

E-Print Network [OSTI]

-603-646-3856 Abstract-- Previous methods for calculating power loss in litz- wire windings usually assume very fine effect, increase power loss in windings at high frequencies dramatically. Accurately analyzing eddy of a proximity-effect loss factor, which is power loss per length normalized to the square of external field

328

Superradiance in a two-channel quantum wire  

SciTech Connect (OSTI)

A one-dimensional, two-channel quantum wire is studied in the effective non-Hermitian Hamiltonian framework. Analytical expressions are derived for the band structure of the isolated wire. Quantum states and transport properties of the wire coupled to two ideal leads at the edges are studied in detail. The width distribution of the quasistationary states varies as a function of the coupling strength to the environment. At weak coupling, all the eigenenergies uniformly acquire small widths. The picture changes entirely at strong coupling, a certain number of states (“super-radiant”) are greatly broadened, while the rest remain long-lived states, a pure quantum mechanical effect as a consequence of quantum interference. The transition between the two regimes greatly influences the transport properties of the system. The maximum transmission through the wire occurs at the super-radiance transition. We consider also a realistic situation with energy-dependent coupling to the continuum due to the existence of decay threshold where super-radiance still plays a significant role in transport properties of the system.

Tayebi, A. [Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA and Department of Electrical and Computer Engineering, College of Engineering, Michigan State University, East Lansing, Michigan 48824 (United States); Zelevinsky, V. [Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)

2014-10-15T23:59:59.000Z

329

Optimum Wire Tapering for Minimum Power Dissipation in RLC Interconnects  

E-Print Network [OSTI]

tapering is shown to reduce the (a CMOS inverter) with the driver (a CMOS inverter). The power dissipatedOptimum Wire Tapering for Minimum Power Dissipation in RLC Interconnects Magdy A. El-Moursy and Eby G. Friedman Department of Electrical and Computer Engineering University of Rochester Rochester, New

Friedman, Eby G.

330

High-precision photometry with the WIRE satellite  

E-Print Network [OSTI]

Around 200 bright stars (V tracker on the WIRE satellite since observations started in 1999. Here we present new results for the solar-like star Procyon A, the two Delta Scuti stars Altair and Epsilon Cephei, and the triple system Lambda Scorpii which consist of two B-type stars -- one of which we find to be an eclipsing binary.

H. Bruntt; D. L. Buzasi

2005-09-15T23:59:59.000Z

331

An Environmental Monitoring System with Integrated Wired and Wireless Sensors  

E-Print Network [OSTI]

environmental monitoring cyber infrastruc- ture that features (1) soil moisture monitoring with flexible spatial Environmental Observatory (TEO) infrastructure [9] for long-term operation. The new WSN-based soil moistureAn Environmental Monitoring System with Integrated Wired and Wireless Sensors Jue Yang, Chengyang

Huang, Yan

332

Page 4 Summer 2004Wetland Wire Revisiting the Iraqi Marshlands  

E-Print Network [OSTI]

wetlands ecology and management. They encountered water treatment and sewage treatment facilities that hadPage 4 Summer 2004Wetland Wire Revisiting the Iraqi Marshlands DUWC Director says restoration efforts are progressing, but the record is mixed hen Duke University Wetland Center Director Curtis

333

Design of Experiments to Determine Causes of Flex Cable Solder Wicking, Discoloration and Hole Location Defects  

SciTech Connect (OSTI)

Design of Experiments (DoE) were developed and performed in an effort to discover and resolve the causes of three different manufacturing issues; large panel voids after Hot Air Solder Leveling (HASL), cable hole locations out of tolerance after lamination and delamination/solder wicking around flat flex cable circuit lands after HASL. Results from a first DoE indicated large panel voids could be eliminated by removing the pre-HASL cleaning. It also revealed eliminating the pre-HASL bake would not be detrimental when using a hard press pad lamination stackup. A second DoE indicated a reduction in hard press pad stackup lamination pressure reduced panel stretch in the y axis approximately 70%. A third DoE illustrated increasing the pre-HASL bake temperature could reduce delamination/solder wicking when using a soft press pad lamination stackup.

Wolfe, Larry

2009-04-22T23:59:59.000Z

334

Microminiaturized minimally invasive intravascular micro-mechanical systems powered and controlled via fiber-optic cable  

DOE Patents [OSTI]

A micro-mechanical system for medical procedures is constructed in the basic form of a catheter having a distal end for insertion into and manipulation within a body and a near end providing for a user to control the manipulation of the distal end within the body. A fiberoptic cable is disposed within the catheter and having a distal end proximate to the distal end of the catheter and a near end for external coupling of laser light energy. A microgripper is attached to the distal end of the catheter and providing for the gripping or releasing of an object within the body. A laser-light-to-mechanical-power converter is connected to receive laser light from the distal end of the fiberoptic cable and connected to mechanically actuate the microgripper.

Fitch, Joseph P. (Livermore, CA); Hagans, Karla (Livermore, CA); Clough, Robert (Danville, CA); Matthews, Dennis L. (Moss Beach, CA); Lee, Abraham P. (Walnut Creek, CA); Krulevitch, Peter A. (Los Altos, CA); Benett, William J. (Livermore, CA); Da Silva, Luiz (Danville, CA); Celliers, Peter M. (Berkeley, CA)

1998-01-01T23:59:59.000Z

335

Superheated-steam test of ethylene propylene rubber cables using a simultaneous aging and accident environment  

SciTech Connect (OSTI)

The superheated-steam test exposed different ethylene propylene rubber (EPR) cables and insulation specimens to simultaneous aging and a 21-day simultaneous accident environment. In addition, some insulation specimens were exposed to five different aging conditions prior to the 21-day simultaneous accident simulation. The purpose of this superheated-steam test (a follow-on to the saturated-steam tests (NUREG/CR-3538)) was to: (1) examine electrical degradation of different configurations of EPR cables; (2) investigate differences between using superheated-steam or saturated-steam at the start of an accident simulation; (3) determine whether the aging technique used in the saturated-steam test induced artificial degradation; and (4) identify the constituents in EPR that affect moisture absorption.

Bennett, P.R.; St. Clair, S.D.; Gilmore, T.W.

1986-06-01T23:59:59.000Z

336

Correlation of superconductor strand, cable, and dipole critical currents in CBA magnets  

SciTech Connect (OSTI)

A calibration between vendor critical current data for 0.0268'' diameter superconductor strand supplied to Fermilab, and the BNL 10/sup -12/..cap omega..cm critical current specification is presented. Vendor critical current data for over 400 Fermilab type billets are shown, both as supplied by the vendor and converted to BNL units. Predictions of cable critical current are made using the sum of the critical currents of the 23 strands, where all strands from the same half billet are assigned the same critical current. The measured critical current shows excellent correlation to the predicted value and is approximately 14 +- 2 percent below it. Colliding Beam Accelerator (CBA) full length dipoles reach the conductor critical current limit, essentially without training. Magnet performance is predictable from the measured critical current of a short sample of cable to within 2%.

Tannenbaum, M.J.; Garber, M.; Sampson, W.B.

1982-01-01T23:59:59.000Z

337

Ab Initio study of neutron drops with chiral Hamiltonians  

E-Print Network [OSTI]

We report ab initio calculations for neutron drops in a 10 MeV external harmonic-oscillator trap using chiral nucleon-nucleon plus three-nucleon interactions. We present total binding energies, internal energies, radii and odd-even energy differences for neutron numbers N = 2 - 18 using the no-core shell model with and without importance truncation. Furthermore, we present total binding energies for N = 8, 16, 20, 28, 40, 50 obtained in a coupled-cluster approach. Comparisons with Green's Function Monte Carlo results, where available, using Argonne v8' with three-nucleon interactions reveal important dependences on the chosen Hamiltonian.

H. D. Potter; S. Fischer; P. Maris; J. P. Vary; S. Binder; A. Calci; J. Langhammer; R. Roth

2014-12-20T23:59:59.000Z

338

Drop In Fuels: Where the Road Leads | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent(CRADA andDriving Innovation at the NationalDrop In

339

Advanced Drop-In Biofuels Initiative Agenda | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartment of EnergyAdministrative RecordsBiofuelseffortEnergyDrop-In

340

Energy Innovator Drops Costs for Titanium Metalwork | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4: Networking for37 EastEIA-64A Annual ReportInnovator Drops Costs

Note: This page contains sample records for the topic "drop cable 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

Alternative Fuels Data Center: Drop-In Biofuels  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAreSmartWay TransportEthanolAll-ElectricCNGDieselDrop-In Biofuels

342

Drop Dynamics and Speciation in Isolation of Metals from Liquid Wastes by Reactive Scavenging  

SciTech Connect (OSTI)

Computational and experimental studies of the motion and dynamics of liquid drops in gas flows were conducted with relevance to reactive scavenging of metals from atomized liquid waste. Navier-Stoke's computations of deformable drops revealed a range of conditions from which prolate drops are expected, and showed how frajectiones of deformable drops undergoing deceleration can be computed. Experimental work focused on development of emission fluorescence, and scattering diagnostics. The instrument developed was used to image drop shapes, soot, and nonaxisymmetric departures from steady flow in a 22kw combustor

Arne J. Pearlstein; Alexander Scheeline

2002-08-30T23:59:59.000Z

343

Plasticity of metal wires in torsion: Molecular dynamics and dislocation dynamics simulations  

E-Print Network [OSTI]

Plasticity of metal wires in torsion: Molecular dynamics and dislocation dynamics simulations t The orientation dependent plasticity in metal nanowires is investigated using molecular dynamics and dislocation wires controls the mechanisms of plastic deformation. For wires oriented along /1 1 0S, dislocations

Cai, Wei

344

Wire-grid diffraction gratings used as polarizing beam splitter for  

E-Print Network [OSTI]

Wire-grid diffraction gratings used as polarizing beam splitter for visible light and applied of wire grid polarizers as efficient polarizing beam splitters for visible light is studied. The large of wire-grid polarizers in liquid crystal on silicon display systems is considered. © 2005 Optical Society

345

K.K. Gan DPF/JPS06 1 Bandwidths of Micro Twisted-Pair Cables  

E-Print Network [OSTI]

/fall time after irradiation? What is optical power after irradiation? What current is needed for annealing during irradiation SLHC AOC 71 MRad 0.0 0.3 0.6 0.9 1.2 1.5 1.8 0 100 200 300 400 Time (Hours) DataOpticalPK.K. Gan DPF/JPS06 1 Bandwidths of Micro Twisted-Pair Cables and Fusion Spliced SIMM-GRIN Fibers

Gan, K. K.

346

Magnetization anomaly of Nb3Al strands and instability of Nb3Al Rutherford cables  

SciTech Connect (OSTI)

Using a Cu stabilized Nb{sub 3}Al strand with Nb matrix, a 30 meter long Nb{sub 3}Al Rutherford cable was made by a collaboration of Fermilab and NIMS. Recently the strand and cable were tested. In both cases instability was observed at around 1.5 Tesla. The magnetization of this Nb{sub 3}Al strand was measured first using a balanced coil magnetometer at 4.2 K. Strands showed an anomalously large magnetization behavior around at 1.6 T, which is much higher than the usual B{sub c2} {approx} 0.5 Tesla (4.2 K) of Nb matrix. This result is compared with the magnetization data of short strand samples using a SQUID magnetometer, in which a flux-jump signal was observed at 0.5 Tesla, but not at higher field. As a possible explanation for this magnetization anomaly, the interfilament coupling through the thin Nb films in the strands is suggested. The instability problem observed in low field tests of the Nb{sub 3}Al Rutherford cables is attributed to this effect.

Yamada, Ryuji; /Fermilab; Kikuchi, Akihiro; /Tsukuba Magnet Lab; Wake, Masayoshi; /KEK, Tsukuba

2006-08-01T23:59:59.000Z

347

Summary Report of Cable Aging and Performance Data for Fiscal Year 2014.  

SciTech Connect (OSTI)

As part of the Light Water Reactor Sustainability Program, science - based engineering approaches were employed to address cable degradation behavior under a range of exposure environments. Experiments were conducted with the goal to provide best guidance for aged material states, remaining life and expected performance under specific conditions for a range of cable materials. Generic engineering tests , which focus on rapid accelerated aging and tensile elongation , were combined with complementar y methods from polymer degradation science. Sandia's approach, building on previous years' efforts, enabled the generation of some of the necessary data supporting the development of improved lifetime predictions models, which incorporate known material b ehaviors and feedback from field - returned 'aged' cable materials. Oxidation rate measurements have provided access to material behavior under low dose rate thermal conditions, where slow degradation is not apparent in mechanical property changes. Such da ta have shown aging kinetics consistent with established radiati on - thermal degradation models. ACKNOWLEDGEMENTS We gratefully acknowledge ongoing technical support at the LICA facility and extensive sample handling provided by Maryla Wasiolek and Don Hans on. Sam Durbin and Patrick Mattie are recognized for valuable guidance throughout the year and assistance in the preparation of the final report. Doug Brunson is appreciated for sample analysis, compilation and plotting of experimental data.

Celina, Mathias C.; Celina, Mathias C.; Redline, Erica Marie; Redline, Erica Marie; Bernstein, Robert; Bernstein, Robert; Quintana, Adam; Quintana, Adam; Giron, Nicholas Henry; Giron, Nicholas Henry; White II, Gregory Von; White II, Gregory Von

2014-09-01T23:59:59.000Z

348

The aging of tungsten filaments and its effect on wire surface kinetics in hot-wire chemical vapor deposition  

E-Print Network [OSTI]

desorption kinetics. In particular, the Si signal exhibits a high temperature activation energy consistent vapor deposition growth have been measured by quadrupole mass spectrometry. New wires produce Si with previous measurements; the activation energy for the SiH3 signal suggests its formation is catalyzed. Aged

Atwater, Harry

349

Fabrication of Chemically Doped, High Upper Critical Field Magnesium Diboride Superconducting Wires  

SciTech Connect (OSTI)

Controlled chemical doping of magnesium diboride (MgB2) has been shown to substantially improve its superconducting properties to the levels required for high field magnets, but the doping is difficult to accomplish through the usual route of solid state reaction and diffusion. Further, superconducting cables of MgB2 are difficult to fabricate because of the friable nature of the material. In this Phase I STTR project, doped and undoped boron fibers were made by chemical vapor deposition (CVD). Several >100m long batches of doped and undoped fiber were made by CVD codeposition of boron plus dopants. Bundles of these fibers infiltrated with liquid magnesium and subsequently converted to MgB2 to form Mg-MgB2 metal matrix composites. In a parallel path, doped boron nano-sized powder was produced by a plasma synthesis technique, reacted with magnesium to produce doped MgB2 superconducting ceramic bodies. The doped powder was also fabricated into superconducting wires several meters long. The doped boron fibers and powders made in this program were fabricated into fiber-metal composites and powder-metal composites by a liquid metal infiltration technique. The kinetics of the reaction between boron fiber and magnesium metal was investigated in fiber-metal composites. It was found that the presence of dopants had significantly slowed the reaction between magnesium and boron. The superconducting properties were measured for MgB2 fibers and MgB2 powders made by liquid metal infiltration. Properties of MgB2 products (Jc, Hc2) from Phase I are among the highest reported to date for MgB2 bulk superconductors. Chemically doped MgB2 superconducting magnets can perform at least as well as NbTi and NbSn3 in high magnetic fields and still offer an improvement over the latter two in terms of operating temperature. These characteristics make doped MgB2 an effective material for high magnetic field applications, such as magnetic confined fusion, and medical MRI devices. Developing fusion as an energy source will dramatically reduce energy costs, global warming, and radioactive waste. Cheaper and more efficient medical MRI devices could lower examination costs, find potential health problems earlier, and thus also benefit society as a whole. Other potential commercial applications for this material are devices for the generation and storage of electrical power, thus lowering the cost of delivered electricity.

Marzik, James, V.

2005-10-13T23:59:59.000Z

350

1D-1D tunneling between vertically coupled GaAs/AlGaAs quantum wires.  

SciTech Connect (OSTI)

We report low-dimensional transport and tunneling in an independently contacted vertically coupled quantum wire system, with a 7.5 nm barrier between the wires. The derivative of the linear conductance shows evidence for both single wire occupation and coupling between the wires. This provides a map of the subband occupation that illustrates the control that we have over the vertically coupled double quantum wires. Preliminary tunneling results indicate a sharp 1D-1D peak in conjunction with a broad 2D-2D background signal. This 1D-1D peak is sensitively dependent on the top and bottom split gate voltage.

Seamons, John Andrew; Lilly, Michael Patrick; Reno, John Louis; Bielejec, Edward Salvador

2004-07-01T23:59:59.000Z

351

Preparation of high temperature superconducting coated wires by dipping and post annealing  

SciTech Connect (OSTI)

This patent describes a process for coating a film on a wire substrate, it comprises: melting a superconducting metal oxide mixture in a crucible to form a melt; coating the substrate with a diffusion barrier; dipping the coated wire substrate into the melt; cooling the coated wire substrate at a rate sufficiently slow to avoid thermal shock and hot cracking; and post-annealing the cooled, coated wire substrate to relieve thermal stresses in the coating, whereupon the superconducting metal-oxide mixture forms a perovskite coating upon the wire substrate.

Provenzano, V.; Singh, A.K.; Imam, M.A.; Tritt, T.M.

1992-04-14T23:59:59.000Z

352

Commissioning a Vibrating Wire System for Quadrupole Fiducialization  

SciTech Connect (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 the quadrupoles. The study showed that the method has high sensitivity (up to 1{micro}m) and laid out guidelines for constructing such a system. 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). A previous study investigated the error associated with each step by using a permanent quadrupole magnet on an optical mover system. The study reported an error of 11{micro}m for step 1 and a repeatability of 4{micro}m for step 2. However, the set up used a FARO arm to measure tooling balls and didn't allow to accurately check step 2 for errors; an uncertainty of 100{micro}m was reported. Therefore, even though the repeatability was good, there was no way to check that the error in step 2 was small. Following the recommendations of that study, we used a CMM (Coordinate Measuring Machine) instead of the FARO arm for measuring the tooling balls. In addition, a roller cam positioner system replaced the optical movers for moving the quadrupole. With the exception of the quadrupole itself, the system was identical to what will be used in fiducializing the undulator quadrupoles. In this study, we investigate the new vibrating wire set up, including the error associated with each step of fiducialization. A vibrating wire system was constructed to fiducialize the quadrupoles between undulator segments in the LCLS. This note is a continuation of previous work to study the ability of the system to fulfill the fiducialization requirements.

Levashov, Michael Y

2010-12-03T23:59:59.000Z

353

A-15 Superconducting composite wires and a method for making  

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, Masaki (Bellport, NY); Klamut, Carl J. (East Patchogue, NY); Luhman, Thomas S. (Westhampton Beach, NY)

1984-01-01T23:59:59.000Z

354

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

355

Wire rope improvement program. Final report. [For draglines  

SciTech Connect (OSTI)

Activities in five major areas were undertaken during the WRIP: experiments using PNL-developed bend-over-sheave fatigue test machines to generate data on which to base a model for predicting large-diameter rope performance from that of small-diameter ropes; bend-over-sheave fatigue testing to determine differences in rope failure rates at varying rope loads; analyses to determine how wire ropes actually fail; development of a load sensor to record and quantity operational loads on drag and hoist ropes; and technology transfer activities to disseminate useful program findings to coal mine operators. Data obtained during the 6-year program support are included. High loads on wire ropes are damaging. As an adjunct, however, potentially useful countermeasures to high loads were identified. Large-diameter rope bend-over-sheave performance can be predicted from small-diameter rope test behavior, over some ranges.

Alzheimer, J.M.; Anderson, W.E.; Beeman, G.H.; Dudder, G.B.; Erickson, R.; Glaeser, W.A.; Jentgen, R.L.; Rice, R.R.; Strope, L.A.

1981-09-01T23:59:59.000Z

356

Slant visual range from drop-size distribution  

E-Print Network [OSTI]

. 1796 x 10 -5 6. 4781 x 10 -5 6. 8817 x 10 7. 4708 x 10 -5 6. 4Z3Z x 10 3. 4338 x 10 -5 l. 8538 x 10 9. 1Z32 x 10 5. 1436 x 10 3. 1019 x 10 3. 3120 x 10 -6 3. 6597 x 10 6. Z636 x 10 4. 2730 x 10 3. 8357 x 10 1 4. OZ10 x 10 1 4. Z715 x 10...'laj or Subject: Mete orol oqy SLANT VISUAL RANGE FROM DROP-SIZE DISTRIBUTION A Thesis by EDWIN STANLEY ARRANCE Approved as to style and content by: Dr. Vance E. Moyer; (Chairman of Committee) Dr. Geor L. Huebner, Jr. (Member) Dr. Glen N. Williams...

Arrance, Edwin Stanley

2012-06-07T23:59:59.000Z

357

Strong plasma screening in thermonuclear reactions: Electron drop model  

E-Print Network [OSTI]

We analyze enhancement of thermonuclear fusion reactions due to strong plasma screening in dense matter using a simple electron drop model. The model assumes fusion in a potential that is screened by an effective electron cloud around colliding nuclei (extended Salpeter ion-sphere model). We calculate the mean field screened Coulomb potentials for atomic nuclei with equal and nonequal charges, appropriate astrophysical S factors, and enhancement factors of reaction rates. As a byproduct, we study analytic behavior of the screening potential at small separations between the reactants. In this model, astrophysical S factors depend not only on nuclear physics but on plasma screening as well. The enhancement factors are in good agreement with calculations by other methods. This allows us to formulate the combined, pure analytic model of strong plasma screening in thermonuclear reactions. The results can be useful for simulating nuclear burning in white dwarfs and neutron stars.

Kravchuk, P A

2014-01-01T23:59:59.000Z

358

Strong plasma screening in thermonuclear reactions: Electron drop model  

E-Print Network [OSTI]

We analyze enhancement of thermonuclear fusion reactions due to strong plasma screening in dense matter using a simple electron drop model. The model assumes fusion in a potential that is screened by an effective electron cloud around colliding nuclei (extended Salpeter ion-sphere model). We calculate the mean field screened Coulomb potentials for atomic nuclei with equal and nonequal charges, appropriate astrophysical S factors, and enhancement factors of reaction rates. As a byproduct, we study analytic behavior of the screening potential at small separations between the reactants. In this model, astrophysical S factors depend not only on nuclear physics but on plasma screening as well. The enhancement factors are in good agreement with calculations by other methods. This allows us to formulate the combined, pure analytic model of strong plasma screening in thermonuclear reactions. The results can be useful for simulating nuclear burning in white dwarfs and neutron stars.

P. A. Kravchuk; D. G. Yakovlev

2014-01-11T23:59:59.000Z

359

Near net shape processing of continuous lengths of superconducting wire  

DOE Patents [OSTI]

A system and method for mechanically forming a ceramic superconductor product are disclosed. 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. 9 figs.

Danyluk, S.; McNallan, M.; Troendly, R.; Poeppel, R.; Goretta, K.; Lanagan, M.

1997-08-26T23:59:59.000Z

360

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

Note: This page contains sample records for the topic "drop cable 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

Homogenous BSCCO-2212 Round Wires for Very High Field Magnets  

SciTech Connect (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

2012-06-30T23:59:59.000Z

362

Trigger LVL1 "Tower Builder" Add: Cables transmission of fast pulses for: The level 1 calorimeter-trigger in ATLAS (sent on 24-01-1995)  

E-Print Network [OSTI]

Trigger LVL1 "Tower Builder" Add: Cables transmission of fast pulses for: The level 1 calorimeter-trigger in ATLAS (sent on 24-01-1995)

Pascual, J

1994-01-01T23:59:59.000Z

363

Proposal for the award of a service contract covering the supply, installation and testing of optical fibre cabling systems on the CERN site  

E-Print Network [OSTI]

Proposal for the award of a service contract covering the supply, installation and testing of optical fibre cabling systems on the CERN site

2011-01-01T23:59:59.000Z

364

Aerodynamics of a circular cylinder inclined to airflow and wind-induced vibrations of dry, inclined cables at high wind speeds .  

E-Print Network [OSTI]

??Cable-stayed bridges are an efficient and elegant solution to bridging long spans. Though a widely used structural system, several significant issues are still unresolved regarding… (more)

Zurell, Cory

2013-01-01T23:59:59.000Z

365

Proposal to negotiate an amendment to a blanket purchase contract for the supply and installation of water-cooled bus bars and cables for the LHC  

E-Print Network [OSTI]

Proposal to negotiate an amendment to a blanket purchase contract for the supply and installation of water-cooled bus bars and cables for the LHC

2014-01-01T23:59:59.000Z

366

El fenmeno pro-drop en portugus de Brasil y espaol peninsular Resumen: espaol y portugus son lenguas pro-drop. No obstante, diversos estudios indican que el  

E-Print Network [OSTI]

El fenómeno pro-drop en portugués de Brasil y español peninsular Resumen: español y portugués son portugués de Brasil una lengua parcialmente pro-drop. En este trabajo se analiza el fenómeno pro-drop en portugués de Brasil a través de una comparación con el español peninsular, utilizando para ello corpus

367

DropBot: An open-source digital microfluidic control system with precise control of electrostatic driving force and instantaneous drop velocity measurement  

SciTech Connect (OSTI)

We introduce DropBot: an open-source instrument for digital microfluidics (http://microfluidics.utoronto.ca/dropbot). DropBot features two key functionalities for digital microfluidics: (1) real-time monitoring of instantaneous drop velocity (which we propose is a proxy for resistive forces), and (2) application of constant electrostatic driving forces through compensation for amplifier-loading and device capacitance. We anticipate that this system will enhance insight into failure modes and lead to new strategies for improved device reliability, and will be useful for the growing number of users who are adopting digital microfluidics for automated, miniaturized laboratory operation.

Fobel, Ryan [Institute for Biomaterials and Biomedical Engineering, University of Toronto, 164 College St., Toronto, Ontario M5S 3G9 (Canada) [Institute for Biomaterials and Biomedical Engineering, University of Toronto, 164 College St., Toronto, Ontario M5S 3G9 (Canada); Donnelly Centre for Cellular and Biomolecular Research, 160 College St., Toronto, Ontario M5S 3E1 (Canada); Fobel, Christian [School of Computer Science, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1 (Canada)] [School of Computer Science, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1 (Canada); Wheeler, Aaron R. [Institute for Biomaterials and Biomedical Engineering, University of Toronto, 164 College St., Toronto, Ontario M5S 3G9 (Canada) [Institute for Biomaterials and Biomedical Engineering, University of Toronto, 164 College St., Toronto, Ontario M5S 3G9 (Canada); Donnelly Centre for Cellular and Biomolecular Research, 160 College St., Toronto, Ontario M5S 3E1 (Canada); Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario M5S 3H6 (Canada)

2013-05-13T23:59:59.000Z

368

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

SciTech Connect (OSTI)

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 Houston’s innovation is based on engineering nanoscale defects in the superconducting film. This could quadruple the current relative to today’s 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

369

Dynamics of a drop trapped inside a horizontal circular hydraulic jump  

E-Print Network [OSTI]

A drop of moderate size deposited inside a horizontal circular hydraulic jump of the same liquid remains trapped at the shock front and does not coalesce. In this situation the drop is moving along the jump and one observes two different motions: a periodic one (it orbitates at constant speed) and an irregular one involving reversals of the orbital motion. Modeling the drop as a rigid sphere exchanging friction with liquid across a thin film of air, we recover the orbital motion and the internal rotation of the drop. This internal rotation is experimentally observed.

Duchesne, Alexis; Lebon, Luc; Pirat, Christophe; Limat, Laurent

2013-01-01T23:59:59.000Z

370

Orbits and reversals of a drop rolling inside a horizontal circular hydraulic jump  

E-Print Network [OSTI]

We explore the complex dynamics of a non-coalescing drop of moderate size inside a circular hydraulic jump of the same liquid formed on a horizontal disk. In this situation the drop is moving along the jump and one observes two different motions: a periodic one (it orbitates at constant speed) and an irregular one involving reversals of the orbital motion. Modeling the drop as a rigid sphere exchanging friction with liquid across a thin film of air, we recover the orbital motion and the internal rotation of the drop. This internal rotation is experimentally observed.

Alexis Duchesne; Clément Savaro; Luc Lebon; Christophe Pirat; Laurent Limat

2013-02-14T23:59:59.000Z

371

E-Print Network 3.0 - actigait implanted drop-foot Sample Search...  

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

of Toronto Collection: Engineering ; Biology and Medicine 6 Force-Controllable Ankle Foot Orthosis (AFO) to Assist Drop Foot Gait Joaquin A. Blaya Summary:...

372

Fluid characterisation and drop impact in inkjet printing for organic semiconductor devices  

E-Print Network [OSTI]

process. The switching speed of a circuit relies on mobility and the ratio between channel length and channel width of the transistor. Commercial DoD inkjet printers can produce drops with a volume of some picoliters which correspond to a drop diameter... , and of my new-born baby Jisu. I love you both so much. iii List of symbols (Roman) A Area c Polymer concentration c* Critical concentration Ca Capillary number D Drop diameter Do Drop diameter at impact Dj Jet diameter...

Jung, Sungjune

2011-07-12T23:59:59.000Z

373

E-Print Network 3.0 - air drop Sample Search Results  

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

Storage, Conversion and Utilization ; Engineering 33 Proceedings of FEDSM2005 2005 ASME Fluids Engineering Summer Conference Summary: hydraulic diameter m dP pressure drop...

374

Electromagnetic interference with electronic apparatus by switching surges in GIS-cable system  

SciTech Connect (OSTI)

Thyristor malignitions and protector relay failures caused by GCB closing in the GIS of a cable system could not be controlled by reducing the ground impedance or adding surge absorbing capacitors. As a result, a study was carried out on this problem with a 66kV mock-up apparatus installed in a factory. It was found that malignitions and failures such as mentioned above could be controlled by preventing 10MHz ultra high-frequency surges emitted by the GIS from leaking out into the grounding system.

Nishiwaki, S.; Nojima, K.; Tatara, S.; Kosakada, M.; Tanabe, N.; Yanabu, S. [Toshiba Corp., Kawasaki (Japan)] [Toshiba Corp., Kawasaki (Japan)

1995-04-01T23:59:59.000Z

375

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

SciTech Connect (OSTI)

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

376

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

377

FEMCAM Analysis of SULTAN Test Results for ITER Nb3SN Cable-conduit Conductors  

SciTech Connect (OSTI)

Performance degradation due to filament fracture of Nb3 Sn cable-in-conduit conductors (CICCs) is a critical issue in large-scale magnet designs such as ITER which is currently being constructed in the South of France. The critical current observed in most SULTAN TF CICC samples is significantly lower than expected and the voltage-current characteristic is seen to have a much broader transition from a single strand to the CICC. Moreover, most conductors exhibit the irreversible degradation due to filament fracture and strain relaxation under electromagnetic cyclic loading. With recent success in monitoring thermal strain distribution and its evolution under the electromagnetic cyclic loading from in situ measurement of critical temperature, we apply FEMCAM which includes strand filament breakage and local current sharing effects to SULTAN tested CICCs to study Nb3 Sn strain sensitivity and irreversible performance degradation. FEMCAM combines the thermal bending effect during cool down and the EM bending effect due to locally accumulating Lorentz force during magnet operation. It also includes strand filament fracture and related local current sharing for the calculation of cable n value. In this paper, we model continuous performance degradation under EM cyclic loading based on strain relaxation and the transition broadening upon cyclic loading to the extreme cases seen in SULTAN test data to better quantify conductor performance degradation.

Yuhu Zhai, Pierluigi Bruzzone, Ciro Calzolaio

2013-03-19T23:59:59.000Z

378

Dynamic simulation of 10 kW Brayton cryocooler for HTS cable  

SciTech Connect (OSTI)

Dynamic simulation of a Brayton cryocooler is presented as a partial effort of a Korean governmental project to develop 1?3 km HTS cable systems at transmission level in Jeju Island. Thermodynamic design of a 10 kW Brayton cryocooler was completed, and a prototype construction is underway with a basis of steady-state operation. This study is the next step to investigate the transient behavior of cryocooler for two purposes. The first is to simulate and design the cool-down process after scheduled or unscheduled stoppage. The second is to predict the transient behavior following the variation of external conditions such as cryogenic load or outdoor temperature. The detailed specifications of key components, including plate-fin heat exchangers and cryogenic turbo-expanders are incorporated into a commercial software (Aspen HYSYS) to estimate the temporal change of temperature and flow rate over the cryocooler. An initial cool-down scenario and some examples on daily variation of cryocooler are presented and discussed, aiming at stable control schemes of a long cable system.

Chang, Ho-Myung; Park, Chan Woo [Hong Ik University, Department of Mechanical Engineering, Seoul, 121-791 (Korea, Republic of); Yang, Hyung Suk; Hwang, Si Dole [KEPCO Research Institute, Daejeon, 305-760 (Korea, Republic of)

2014-01-29T23:59:59.000Z

379

Preliminary photovoltaic arc-fault prognostic tests using sacrificial fiber optic cabling.  

SciTech Connect (OSTI)

Through the New Mexico Small Business Assistance Program, Sandia National Laboratories worked with Sentient Business Systems, Inc. to develop and test a novel photovoltaic (PV) arc-fault detection system. The system operates by pairing translucent polymeric fiber optic sensors with electrical circuitry so that any external abrasion to the system or internal heating causes the fiber optic connection to fail or detectably degrade. A periodic pulse of light is sent through the optical path using a transmitter-receiver pair. If the receiver does not detect the pulse, an alarm is sounded and the PV system can be de-energized. This technology has the unique ability to prognostically determine impending failures to the electrical system in two ways: (a) the optical connection is severed prior to physical abrasion or cutting of PV DC electrical conductors, and (b) the polymeric fiber optic cable melts via Joule heating before an arc-fault is established through corrosion. Three arc-faults were created in different configurations found in PV systems with the integrated fiber optic system to determine the feasibility of the technology. In each case, the fiber optic cable was broken and the system annunciated the fault.

Johnson, Jay; Blemel, Kenneth D. [Sentient Business Systems, Inc., Albuquerque, NM; Peter, Francis [Sentient Business Systems, Inc., Albuquerque, NM

2013-02-01T23:59:59.000Z

380

Multipoint Pressure and Temperature Sensing Fiber Optic Cable for Monitoring CO2 Sequestration  

SciTech Connect (OSTI)

This report describes the work completed on contract DE-FE0010116. The goal of this two year project was to develop and demonstrate in the laboratory a highly accurate multi-point pressure measurement fiber optic cable based on MEMS pressure sensors suitable for downhole deployment in a CO2 sequestration well. The sensor interrogator was also to be demonstrated in a remote monitoring system and environmental testing was to be completed to indicate its downhole survivability over a lengthy period of time (e.g., 20 years). An interrogator system based on a pulsed laser excitation was shown to be capable of multiple (potentially 100+) simultaneous sensor measurements. Two sensors packages were completed and spliced in a cable onto the same fiber and measured. One sensor package was subsequently measured at high temperatures and pressures in supercritical CO2, while the other package was measured prior and after being subjected to high torque stresses to mimic downhole deployment. The environmental and stress tests indicated areas in which the package design should be further improved.

Challener, William

2014-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

Proton radioactivity within a generalized liquid drop model  

E-Print Network [OSTI]

The proton radioactivity half-lives of spherical proton emitters are investigated theoretically. The potential barriers preventing the emission of protons are determined in the quasimolecular shape path within a generalized liquid drop model (GLDM) including the proximity effects between nuclei in a neck and the mass and charge asymmetry. The penetrability is calculated with the WKB approximation. The spectroscopic factor has been taken into account in half-life calculation, which is obtained by employing the relativistic mean field (RMF) theory combined with the BCS method with the force NL3. The half-lives within the GLDM are compared with the experimental data and other theoretical values. The GLDM works quite well for spherical proton emitters when the spectroscopic factors are considered, indicating the necessity of introducing the spectroscopic factor and the success of the GLDM for proton emission. Finally, we present two formulas for proton emission half-life calculation similar to the Viola-Seaborg formulas and Royer's formulas of alpha decay.

J. M. Dong; H. F. Zhang; G. Royer

2009-06-02T23:59:59.000Z

382

Do liquid drops roll or slide on inclined surfaces?  

E-Print Network [OSTI]

We study the motion of a two-dimensional droplet on an inclined surface, under the action of gravity, using a diffuse interface model which allows for arbitrary equilibrium contact angles. The kinematics of motion is analysed by decomposing the gradient of the velocity inside the droplet into a shear and a residual flow. This decomposition helps in distinguishing sliding versus rolling motion of the drop. Our detailed study confirms intuition, in that rolling motion dominates as the droplet shape approaches a circle, and the viscosity contrast between the droplet and the ambient fluid becomes large. As a consequence of kinematics, the amount of rotation in a general droplet shape follows a universal curve characterised by geometry, and independent of Bond number, surface inclination and equilibrium contact angle, but determined by the slip length and viscosity contrast. Our results open the way towards a rational design of droplet-surface properties, both when rolling motion is desirable (as in self-cleaning hydrophobic droplets) or when it must be prevented (as in insecticide sprays on leaves).

Sumesh P. Thampi; Ronojoy Adhikari; Rama Govindarajan

2014-05-08T23:59:59.000Z

383

Nano-/micro metallic wire synthesis on Si substrate and their characterization  

SciTech Connect (OSTI)

Nano-/micro wires of copper are grown on semiconducting Si substrate using the template method. It involves the irradiation of 8 um thick polymeric layer coated on Si with150 MeV Ni ion beam at a fluence of 2E8. Later, by using the simple technique of electrodeposition, copper nano-/micro wires were grown via template synthesis. Synthesized wires were morphologically characterized using SEM and electrical characterization was carried out by finding I-V plot.

Kaur, Jaskiran, E-mail: kaur.jaskiran@gmail.com; Kaur, Harmanmeet, E-mail: kaur.jaskiran@gmail.com; Singh, Surinder, E-mail: kaur.jaskiran@gmail.com [Department of Physics, Guru Nanak Dev University, Amritsar-143005 (India); Kanjilal, Dinakar [Inter-University Accelerator Centre, New Delhi-110067 (India); Chakarvarti, Shiv Kumar [Manav Rachna International University, Faridabad-121003 (India)

2014-04-24T23:59:59.000Z

384

A comparison between the ANSI/IEEE and the CENELEC/IEC approach to overload protection of insulated power cables  

SciTech Connect (OSTI)

The same basic principles, on which the methods of power cables protection against overloads are based, are summed up by different criteria and formulations within ANSI/IEEE and CENELEC/IEC publications. The studies carried out by the technical committees of these organizations have been examined and compared in order to point out not only their differences but also their complementary aspects. By arranging the two approaches, it has been possible to outline a third way to determine the admissible duration of overload currents and define intermediate criteria for the emergency ratings of cables and for the coordination of protective devices.

Parise, G.; Rubino, G. [Univ. of Rome La Sapienza (Italy). Electrical Engineering Dept.

1995-12-31T23:59:59.000Z

385

Measurement of low radioactivity background in a high voltage cable by high resolution inductively coupled plasma mass spectrometry  

SciTech Connect (OSTI)

The measurement of naturally occurring low level radioactivity background in a high voltage (HV) cable by high resolution inductively coupled plasma mass spectrometry (HR ICP MS) is presented in this work. The measurements were performed at the Chemistry Service of the Gran Sasso National Laboratory. The contributions to the radioactive background coming from the different components of the heterogeneous material were separated. Based on the mass fraction of the cable, the whole contamination was calculated. The HR ICP MS results were cross-checked by gamma ray spectroscopy analysis that was performed at the low background facility STELLA (Sub Terranean Low Level Assay) of the LNGS underground lab using HPGe detectors.

Vacri, M. L. di; Nisi, S.; Balata, M. [Gran Sasso National Laboratory, Chemistry Service, SS 17bis km 18.910, 67100 Assergi (Aq) (Italy)] [Gran Sasso National Laboratory, Chemistry Service, SS 17bis km 18.910, 67100 Assergi (Aq) (Italy)

2013-08-08T23:59:59.000Z

386

Scaling law in liquid drop coalescence driven by surface tension Mingming Wua)  

E-Print Network [OSTI]

Scaling law in liquid drop coalescence driven by surface tension Mingming Wua) Department experimental results on the coalescence of two liquid drops driven by surface tension. Using a high speed that such scaling law is robust when using fluids of different viscosities and surface tensions. The prefactor

Cubaud, Thomas

387

Measurement of Dynamical Forces between Deformable Drops Using the Atomic Force Microscope. I. Theory  

E-Print Network [OSTI]

effects of electrical double layer repulsion between oil drops charged by adsorbed surfactant mainly to hydrodynamic lubrication forces. 1. Introduction The atomic force microscope (AFM) has long, such as the interaction between rigid probe particles and oil drops1-4 or between a particle and a bubble.5

Chan, Derek Y C

388

Spreading of Viscous Fluid Drops on a Solid Substrate Assisted by Thermal Fluctuations Benny Davidovitch,1  

E-Print Network [OSTI]

on a solid substrate, taking into account the effects of thermal fluctuations in the fluid momentum. A nonlinear stochastic lubrication equation is derived and studied using numerical simulations and scaling, 68.08.Bc, 68.15.+e Water drops spreading on a table and oil drops lubricat- ing a pan are two common

Moro, Esteban

389

Rate Shaping by Block Dropping for Transmission of MPEGprecoded Video over Channels of Dynamic Bandwidth  

E-Print Network [OSTI]

) and much better visual quality than conventional ap­ proaches. We also show that by jointly dropping blocksRate Shaping by Block Dropping for Transmission of MPEG­precoded Video over Channels of Dynamic of the compressed video in cases that the network capacity is reduced. This pa­ per proposes a novel block

Zeng, Wenjun "Kevin"

390

MEASUREMENT OF HEAT TRANSFER DURING DROP-WISE CONDENSATION OF WATER ON POLYETHYLENE  

E-Print Network [OSTI]

MEASUREMENT OF HEAT TRANSFER DURING DROP-WISE CONDENSATION OF WATER ON POLYETHYLENE Gagan Deep distribution of temperature during drop-wise condensation over a polyethylene substrate was measured using on the substrate was simultaneously visualized. Static contact angles of water on polyethylene are measured

Khandekar, Sameer

391

ADSORPTION OF INTAN-100 AT THE BITUMEN/AQUEOUS SOLUTION INTERFACE STUDIED BY SPINNING DROP  

E-Print Network [OSTI]

1 ADSORPTION OF INTAN-100 AT THE BITUMEN/AQUEOUS SOLUTION INTERFACE STUDIED BY SPINNING DROP an experimental study on the adsorption behaviour of Intan-100, a non- ionic surfactant, at the bitumen Spinning Drop Tensiometer, bitumen, heavy water, Intan-100, Gibbs adsorption isotherm. #12;2 Introduction

Joseph, Daniel D.

392

Control of drop rebound with solid target motion Heon Ju Lee and Ho-Young Kima)  

E-Print Network [OSTI]

and a low viscosity, such as water and molten metal drops, exhibit a vigorous recoiling and a long having a high impact inertia, a low viscosity, and a high surface tension, such as a large water drop upon impact with solid surfaces plays important roles in many applications. When spraying herbicide

Kim, Ho-Young

393

APPLICATION OF BUTTERFLY VALVES FOR FREE DISCHARGE, MINIMUM PRESSURE DROP, AND FOR CHOKING CAVITATION  

E-Print Network [OSTI]

CAVITATION Butterfly valves are commonly used as control valves in applications where the pressure drops and the use of a butterfly valve for flashing or choking cavitation service. Free discharge typically produces high pipe velocities at moderate pressure drops, and choking cavitation typically produces high

Rahmeyer, William J.

394

Real-Time Detection of Packet Drop Attacks on Synchrophasor Data  

E-Print Network [OSTI]

, NY, 12180 Abstract--The importance of phasor measurement unit (PMU) or synchrophasor data towardsReal-Time Detection of Packet Drop Attacks on Synchrophasor Data Seemita Pal, Biplab Sikdar and Joe attack, where the adversary arbitrarily drops packets with synchrophasor data. This paper develops a real

Sikdar, Biplab

395

Fully Integrated NxN MEMS Wavelength Selective Switch with 100% Colorless Add-Drop Ports  

E-Print Network [OSTI]

Fully Integrated NxN MEMS Wavelength Selective Switch with 100% Colorless Add-Drop Ports Shifu Yuan/drop ports. © 2007 Optical Society of America OCIS codes: (060.2330) Fiber optics communications; (060 multi-port wavelength selective switches using liquid crystal devices. Micro-Electro-Mechanical System

Bowers, John

396

CLEANING OF VISCOUS DROPS ON A FLAT INCLINED SURFACE USING GRAVITY-DRIVEN FILM FLOWS  

E-Print Network [OSTI]

then transports it away. To assess the impact of the drop on the velocity of the cleaning fluid, we have developed it is perturbed by a solid obstacle representing a very viscous drop. We find that at intermediate Reynolds number as in our daily life (Yeckel and Middleman, 1987), such as in a household dishwasher. In a full dishwasher

Dalziel, Stuart

397

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

SciTech Connect (OSTI)

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

398

E-Print Network 3.0 - american wiring gauge Sample Search Results  

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

si12;ed by gauge... in an older aircraft. 1 12; aircraft wiring, and electromagnetic interference issues. Section 4 refutes... the minimum ig- nition energy requirement from...

399

Advances in the development of wire mesh reactor for coal gasification studies - article no. 084102  

SciTech Connect (OSTI)

In an effort to further understand the coal gasification behavior in entrained-flow gasifiers, a high pressure and high temperature wire mesh reactor with new features was recently built. An advanced LABVIEW-based temperature measurement and control system were adapted. Molybdenum wire mesh with aperture smaller than 70 {mu} m and type D thermocouple were used to enable high carbon conversion ({gt}90%) at temperatures {gt}1000 {sup o}C. Gaseous species from wire mesh reactor were quantified using a high sensitivity gas chromatography. The material balance of coal pyrolysis in wire mesh reactor was demonstrated for the first time by improving the volatile's quantification techniques.

Zeng, C.; Chen, L.; Liu, G.; Li, W.H.; Huang, B.M.; Zhu, H.D.; Zhang, B.; Zamansky, V. [GE Global Research Shanghai, Shanghai (China)

2008-08-15T23:59:59.000Z

400

Fire Together --Wire Together --Come Together Cornelius Weber and Jochen Triesch  

E-Print Network [OSTI]

Fire Together -- Wire Together -- Come Together Cornelius Weber and Jochen Triesch Frankfurt­ mary Visual Cortex. C. Weber Proc. ICANN 1147­52, 2001. #12;

Weber, Cornelius

Note: This page contains sample records for the topic "drop cable 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

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

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

Marketing SummaryAn innovative process for the fabrication of superconducting MgB2 (magnesium diboride) wire suitable for magnets or electrical power transmission. In addition,...

402

E-Print Network 3.0 - aluminum cold wire Sample Search Results  

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

to understanding and maintaining your home's electrical system Summary: susceptible to damage from aging and faulty renovations. aluminum Wiring: 1960s-1970s As the price of...

403

Effects of guy wires on SWECS tower dynamics. Technical report  

SciTech Connect (OSTI)

The Rocky Flats (RF) Supporting Research and Technology (SRT) study for tower testing/analysis has led to some useful information concerning the effect of tower guy pretension on small wind system tower dynamics. The effect of guy-wire pretension on tower natural frequencies is usually considered negligible if the guy: (1) has no sag caused by gravity, and (2) the tension is not approaching the tower buckling load. At the rf test center it was found that, for the test tower even when these conditions were avoided, the guy fundamental frequency must be 30% greater than the tower fundamental frequency to maintain the fundamental's characteristics.

Butterfield, C P; Pykkonen, K R; Sexton, J H

1980-07-01T23:59:59.000Z

404

Surface spin flip probability of mesoscopic Ag wires.  

SciTech Connect (OSTI)

Spin relaxation in mesoscopic Ag wires in the diffusive transport regime is studied via nonlocal spin valve and Hanle effect measurements performed on Permalloy/Ag lateral spin valves. The ratio between momentum and spin relaxation times is not constant at low temperatures. This can be explained with the Elliott-Yafet spin relaxation mechanism by considering the momentum surface relaxation time as being temperature dependent. We present a model to separately determine spin flip probabilities for phonon, impurity and surface scattering and find that the spin flip probability is highest for surface scattering.

Mihajlovic, G.; Pearson, J. E.; Bader, S. D.; Hoffmann, A.

2010-06-08T23:59:59.000Z

405

Thermal conduction of SSC (Superconducting Super Collider) wire  

SciTech Connect (OSTI)

A method suitable for measuring the thermal conductivity of good thermal conductors at low temperatures was implemented. It successfully served its purpose: to detect the effect of doping with manganese the interfilament part of the copper matrix of the superconducting wire used in the magnets of the Superconducting Super Collider. It uses two heaters and one thermometer per sample reducing the accuracy requirement on the thermometers, automatically compensating for zero offsets and reducing the number of critical thermal contacts. Commercially available strain gauges are used as heaters. 3 refs., 2 figs.

Kuchnir, M.; Tague, J.L.

1989-08-01T23:59:59.000Z

406

Formulation of Molding Materials From Recycled Printed Wiring Boards  

SciTech Connect (OSTI)

The objective of this project was to formulate the pulverized electronic waste (PEW) stream derived from grinding obsolete electronic assemblies and combine this material with thermoplastic or thermosetting polymers into useful, high-value commercial products materials. PEW consists primarily of various thermoset plastic materials and glass fibers from the printed wiring boards, along with ceramic pieces from chip carriers and other electronic components. Typically, the thermosetting materials have the same desirable properties as in the original electronic assembly, including relatively high temperature resistance, excellent chemical resistance, and flame retardancy. These properties combine to make PEW an inherently good inert filler material for plastic composites.

Lula, J.W.; Bohnert, G.W.

1998-04-20T23:59:59.000Z

407

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II FieldVacancy-Induced Nanoscale Wire Structure in Gallium

408

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II FieldVacancy-Induced Nanoscale Wire Structure in

409

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II FieldVacancy-Induced Nanoscale Wire Structure

410

Vacancy-Induced Nanoscale Wire Structure in Gallium Selenide Layers  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II FieldVacancy-Induced Nanoscale Wire

411

Discovery and Characterization of a Cell-Permeable, Small-Molecule c-Abl Kinase Activator that Binds to the Myristoyl Binding Site  

SciTech Connect (OSTI)

c-Abl kinase activity is regulated by a unique mechanism involving the formation of an autoinhibited conformation in which the N-terminal myristoyl group binds intramolecularly to the myristoyl binding site on the kinase domain and induces the bending of the {alpha}I helix that creates a docking surface for the SH2 domain. Here, we report a small-molecule c-Abl activator, DPH, that displays potent enzymatic and cellular activity in stimulating c-Abl activation. Structural analyses indicate that DPH binds to the myristoyl binding site and prevents the formation of the bent conformation of the {alpha}I helix through steric hindrance, a mode of action distinct from the previously identified allosteric c-Abl inhibitor, GNF-2, that also binds to the myristoyl binding site. DPH represents the first cell-permeable, small-molecule tool compound for c-Abl activation.

Yang, Jingsong; Campobasso, Nino; Biju, Mangatt P.; Fisher, Kelly; Pan, Xiao-Qing; Cottom, Josh; Galbraith, Sarah; Ho, Thau; Zhang, Hong; Hong, Xuan; Ward, Paris; Hofmann, Glenn; Siegfried, Brett; Zappacosta, Francesca; Washio, Yoshiaki; Cao, Ping; Qu, Junya; Bertrand, Sophie; Wang, Da-Yuan; Head, Martha S.; Li, Hu; Moores, Sheri; Lai, Zhihong; Johanson, Kyung; Burton, George; Erickson-Miller, Connie; Simpson, Graham; Tummino, Peter; Copeland, Robert A.; Oliff, Allen (GSKPA)

2014-10-02T23:59:59.000Z

412

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

413

Instruments aboard the ship, the Pacific Storm, ping sound waves toward the cable. The oceanographer's eyes flicker  

E-Print Network [OSTI]

Instruments aboard the ship, the Pacific Storm, ping sound waves toward the cable-pound Humboldt squid, and the sound waves, set at 38 kilohertz, bounce off the squid. An image shows up, and it attacks the tethered animal. The oceanographer screams. Fade to black. Seeing with Sound "Actually, I

Benoit-Bird, Kelly J.

414

Electrohydrodynamic migration of a spherical drop in a general quadratic flow  

E-Print Network [OSTI]

We investigate the motion of a spherical drop in a general quadratic flow acted upon by an arbitrarily oriented externally applied uniform electric field. The drop and media are considered to be leaky dielectrics. The flow field affects the distribution of charges on the drop surface, which leads to alteration in the electric field, thereby affecting the velocity field through the Maxwell stress on the fluid-fluid interface. The two-way coupled electrohydrodynamics is central towards dictating the motion of the drop in the flow field. We analytically address the electric potential distribution and Stokesian flow field in and around the drop in a general quadratic flow for small electric Reynolds number (which is the ratio of the charge relaxation time scale to the convective time scale). As a special case, we consider a drop in an unbounded cylindrical Poiseuille flow and show that, an otherwise absent, cross-stream drop migration may be obtained in the presence of a uniform electric field. Depending on the d...

Mandal, Shubhadeep; Chakraborty, Suman

2015-01-01T23:59:59.000Z

415

Cold drawn steel wires--processing, residual stresses and ductility Part II: Synchrotron and neutron diffraction  

E-Print Network [OSTI]

Cold drawn steel wires--processing, residual stresses and ductility Part II: Synchrotron Received in final form 29 September 2005 ABSTRACT Cold drawing of steel wires leads to an increase proposed that cold drawing would induce a phase transformation of the steel, possibly a martensitic

416

System Design Considerations for High data Rate Communications Over Multi-wire Overhead Power-  

E-Print Network [OSTI]

System Design Considerations for High data Rate Communications Over Multi-wire Overhead Power communications, multi-wire overhead lines, capacity, OFDM, coding. I. INTRODUCTION The increasing interest, and severe narrowband interference [1]. The channel characteristics of medium voltage overhead power-line

Kavehrad, Mohsen

417

Optimal Choice for Number of Strands in a Litz-Wire Transformer Winding  

E-Print Network [OSTI]

component of this work in other works must be obtained from the IEEE. #12;IEEE TRANSACTIONS ON POWER wire, magnet wire, power electronics, power transformers, proximity-effect losses, skin ef- fect of magnetic components for a solar-powered race vehicle [1] (the original impetus for this work) an optimal

418

Secondary Voltage Unbalance Compensation for Three-Phase Four-Wire Islanded Microgrids  

E-Print Network [OSTI]

as a cluster of distributed resources (DRs), i.e. distributed generation (DG), distributed storage (DSSecondary Voltage Unbalance Compensation for Three-Phase Four-Wire Islanded Microgrids Fen Tang four-wire islanded microgrid systems. It is implemented in the secondary control level of the microgrid

Vasquez, Juan Carlos

419

THz Sommerfeld wave propagation on a single metal wire Tae-In Jeon,a  

E-Print Network [OSTI]

THz Sommerfeld wave propagation on a single metal wire Tae-In Jeon,a Jiangquan Zhang, and D an experimental and theoretical study of THz Sommerfeld wave propagation on a single copper wire. THz pulses increasing interest on the guided wave propagation of THz pulses, and much effort and progress on THz

420

Physical test report to drop test of a 9975 radioactive material shipping packaging  

SciTech Connect (OSTI)

This report presents the drop test results for the 9975 radioactive material shipping package being dropped 30 feet onto a unyielding surface followed by a 40-inch puncture pin drop. The purpose of these drops was to show that the package lid would remain attached to the drum. The 30-foot drop was designed to weaken the lid closure lug while still maintaining maximum extension of the lugs from the drum surface. This was accomplished by angling the drum approximately 30 degrees from horizontal in an inverted position. In this position, the drum was rotated slightly so as not to embed the closure lugs into the drum as a result of the 30-foot drop. It was determined that this orientation would maximize deformation to the closure ring around the closure lug while still maintaining the extension of the lugs from the package surface. The second drop was from 40 inches above a 40-inch tall 6-inch diameter puncture pin. The package was angled 10 degrees from vertical and aligned over the puncture pin to solidly hit the drum lug(s) in an attempt to disengage the lid when dropped.Tests were performed in response to DOE EM-76 review Q5 inquires that questioned the capability of the 9975 drum lid to remain in place under this test sequence. Two packages were dropped utilizing this sequence, a 9974 and 9975. Test results for the 9974 package are reported in WSRC-RP-97-00945. A series of 40-inch puncture pin tests were also performed on undamaged 9975 and 9974 packages.

Blanton, P.S.

1997-11-11T23:59:59.000Z

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421

Research and Development Roadmaps for Nondestructive Evaluation of Cables, Concrete, Reactor Pressure Vessels, and Piping Fatique  

SciTech Connect (OSTI)

To address these research needs, the MAaD Pathway supported a series of workshops in the summer of 2012 for the purpose of developing R&D roadmaps for enhancing the use of Nondestructive Evaluation (NDE) technologies and methodologies for detecting aging and degradation of materials and predicting the remaining useful life. The workshops were conducted to assess requirements and technical gaps related to applications of NDE for cables, concrete, reactor pressure vessels (RPV), and piping fatigue for extended reactor life. An overview of the outcomes of the workshops is presented here. Details of the workshop outcomes and proposed R&D also are available in the R&D roadmap documents cited in the bibliography and are available on the LWRS Program website (http://www.inl.gov/lwrs).

Clayton, Dwight A [ORNL] [ORNL; Bakhtiari, Sasan [Argonne National Laboratory (ANL)] [Argonne National Laboratory (ANL); Smith, Cyrus M [ORNL] [ORNL; Simmons, Kevin [Pacific Northwest National Laboratory (PNNL)] [Pacific Northwest National Laboratory (PNNL); Ramuhalli, Pradeep [Pacific Northwest National Laboratory (PNNL)] [Pacific Northwest National Laboratory (PNNL); Coble, Jamie [Pacific Northwest National Laboratory (PNNL)] [Pacific Northwest National Laboratory (PNNL); Brenchley, David [Pacific Northwest National Laboratory (PNNL)] [Pacific Northwest National Laboratory (PNNL); Meyer, Ryan [Pacific Northwest National Laboratory (PNNL)] [Pacific Northwest National Laboratory (PNNL)

2013-01-01T23:59:59.000Z

422

Work plan for vibration cable re-route and water flush system modifications for 107-AN mixer pump  

SciTech Connect (OSTI)

A mixer pump (75 horsepower Hazleton submersible) is to be installed in the central pump pit of Double-Shell Tank 241-AN-107 for the Caustic Addition Project. The mixer pump will be used as a platform to inject, mix, and entrain caustic with the waste, in order to bring the waste hydroxyl ion concentration into compliance with Tank Farm operating specifications. Testing of the mixer pump and caustic addition system revealed that the mixer pump`s vibration cable picks up electromagnetic interference from the motor power cable during variable speed operation of the pump. Also, it was noted that the mixer pump`s water flush system may not be as effective as desired. Ergo this work plan for improving the operation of these mixer pump subsystems. A new vibration cable shall be routed entirely outside the mixer pump support column pipe, up thru a new penetration in the pump mounting flange. The existing penetration in the side of the pipe is to be plugged. Increasing the distance between power and instrument cables may reduce or eliminate electromagnetic interference to the vibration monitor. The mixer pump water flush system shall be modified to allow pressure isolation of individual branches. A header is to be installed on the middle section of the support column. Each branch (there are three) shall contain a solenoid valve (normally open) to control flow into the branch. The solenoid cables shall be routed up thru three new penetrations in the pump mounting flange to a new electrical box mounted on the flange. The existing flush piping to the inlet screen will remain but the continuation of the flush piping to the pump discharge nozzles is to be removed and the tee plugged. New stainless steel tubing is to be run down to the pump discharge nozzles. Pressure isolation of individual branches will maximize the flush system`s effectiveness at blasting potential sediment clogs out of the pump discharge nozzles.

Leshikar, G.A.

1995-04-14T23:59:59.000Z

423

Circuit bridging of digital equipment caused by smoke from a cable fire  

SciTech Connect (OSTI)

Advanced reactor systems are likely to use protection systems with digital electronics that ideally should be resistant to environmental hazards, including smoke from possible cable fires. Previous smoke tests have shown that digital safety systems can fail even at relatively low levels of smoke density and that short-term failures are likely to be caused by circuit bridging. Experiments were performed to examine these failures, with a focus on component packaging and protection schemes. Circuit bridging, which causes increased leakage currents and arcs, was gauged by measuring leakage currents among the leads of component packages. The resistance among circuit leads typically varies over a wide range, depending on the nature of the circuitry between the pins, bias conditions, circuit board material, etc. Resistance between leads can be as low as 20 k{Omega} and still be good, depending on the component. For these tests, the authors chose a printed circuit board and components that normally have an interlead resistance above 10{sup 12} {Omega}, but if the circuit is exposed to smoke, circuit bridging causes the resistance to fall below 10{sup 3} {Omega}. Plated-through-hole (PTH) and surface-mounted (SMT) packages were exposed to a series of different smoke environments using a mixture of environmentally qualified cables for fuel. Conformal coatings and enclosures were tested as circuit protection methods. High fuel levels, high humidity, and high flaming burns were the conditions most likely to cause circuit bridging. The inexpensive conformal coating that was tested - an acrylic spray - reduced leakage currents, but enclosure in a chassis with a fan did not. PTH packages were more resistant to smoke-induced circuit bridging than SMT packages. Active components failed most often in tests where the leakage currents were high, but failure did not always accompany high leakage currents.

Tanaka, T.J.; Anderson, D.J.

1997-03-01T23:59:59.000Z

424

Results of a literature review on the environmental qualification of low-voltage electric cables  

SciTech Connect (OSTI)

In the design of nuclear power plants in the US, safety-related electric equipment must be qualified to provide reasonable assurance it can withstand the effects of a design basis event (DBE) and still be able to perform its prescribed safety function, even if the accident were to occur at the end of its service life. The requirement for environmental qualification (EQ) originates from the General Design Criteria in the Code of Federal Regulations, Title 10, Part 50 (10 CFR 50). The acceptable method of performing the qualification of this equipment has evolved over the years, starting with the NRC Division of Operating Reactors (DOR) Guidelines, which were issued in Bulletin 79--01B, and NUREG-0588 requirements and ending with the current EQ Rule, 10 CFR 50.49. While the EQ methods described in these documents have the same overall objective, there are some notable differences for which a clear technical basis has not been established. One difference is the preaging requirement for equipment prior to LOCA testing. In addition, specific issues related to current EQ practices have been raised by the US NRC which need to be addressed. These issues, which are discussed in detail later in this paper, are related to the sources of conservatism and uncertainty in IEEE Standard 323--1974, which is the qualification standard currently endorsed by the NRC. To address these issues, the NRC Office of Nuclear Reactor Regulation (NRR) implemented a Task Action Plan (TAP), and the Office of Nuclear Reactor Research (RES) initiated a complementary research program. The current focus of this program is on the qualification of low-voltage instrumentation and control cables. These cables were selected since they are not typically replaced on a routine basis, and their degradation could impact plant safety.

Lofaro, R.; Lee, B.; Villaran, M. [Brookhaven National Lab., Upton, NY (United States); Gleason, J. [GLS Enterprises, Inc. (United States); Aggarwal, S. [Nuclear Regulatory Commission, Washington, DC (United States)

1995-12-31T23:59:59.000Z

425

Measurements of control rod efficiency in RBMK critical assembly upon dropping of the rods  

SciTech Connect (OSTI)

The efficiency of control rods in the RBMK critical assembly was measured in the case where one manual-control rod (MCR) is dropped from a steady critical state, and several other MCRs were additionally dropped after 44 s. The measured number of neutrons in the assembly during and after dropping of the rods was used to calculate the efficiency values of the rods by solution of the system of point kinetics equations. A series of methods of the initial data treatment for determination of the desired values of reactivity without the calculated corrections were used.

Zhitarev, V. E., E-mail: vejitarev@nnrd.kiae.su; Kachanov, V. M.; Sergevnin, A. Yu.; Lebedev, G. V., E-mail: lgv2004@mail.ru [National Research Center Kurchatov Institute (Russian Federation)

2014-12-15T23:59:59.000Z

426

Drop Traffic in Microfluidic Ladder Networks with Fore-Aft Structural Asymmetry  

E-Print Network [OSTI]

We investigate the dynamics of pairs of drops in microfluidic ladder networks with slanted bypasses, which break the fore-aft structural symmetry. Our analytical results indicate that unlike symmetric ladder networks, structural asymmetry introduced by a single slanted bypass can be used to modulate the relative drop spacing, enabling them to contract, synchronize, expand, or even flip at the ladder exit. Our experiments confirm all these behaviors predicted by theory. Numerical analysis further shows that while ladder networks containing several identical bypasses are limited to nearly linear transformation of input delay between drops, mixed combination of bypasses can cause significant non-linear transformation enabling coding and decoding of input delays.

Jeevan Maddala; William S. Wang; Siva A. Vanapalli; Raghunathan Rengaswamy

2012-01-27T23:59:59.000Z

427

Pressure drop in cyclone separators commonly used in the agricultural processing industry  

E-Print Network [OSTI]

of their s1mplic1ty of construction, low initial cost and operational safety. Cyclone design procedures are needed in order to obtain the maximum collection eff1ciency with a minimum pressure drop. In this study, three cyclone sizes (203, 305 and 406 mm...1ty as well as the inlet height and width of the cyclone. This algorithm and Shepherd and Lapple's (1939) equation were used to predict the pressure drop across a 305 mm d1ameter cyclone. The predicted pressure drop values were compared...

Guzman, Francisco Alejandro

1984-01-01T23:59:59.000Z

428

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

SciTech Connect (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

429

Enhanced heat transfer using wire-coil inserts for high-heat-load applications.  

SciTech Connect (OSTI)

Enhanced heat-transfer techniques, used to significantly reduce temperatures and thermally induced stresses on beam-strike surfaces, are routinely used at the APS in all critical high-heat-load components. A new heat-transfer enhancement technique being evaluated at the APS involving the use of wire-coil inserts proves to be superior to previously employed techniques. Wire coils, similar in appearance to a common spring, are fabricated from solid wire to precise tolerances to mechanically fit inside standard 0.375-in-diameter cooling channels. In this study, a matrix of wire coils, fabricated with a series of different pitches from several different wire diameters, has been tested for heat-transfer performance and resulting pressure loss. This paper reviews the experimental data and the analytical calculations, compares the data with existing correlations, and interprets the results for APS front-end high-heat-load components.

Collins, J. T.; Conley, C. M.; Attig, J. N.; Baehl, M. M.

2002-09-20T23:59:59.000Z

430

Nuclear reactor fuel structure containing uranium alloy wires embedded in a metallic matrix plate  

SciTech Connect (OSTI)

A nuclear fuel-containing plate structure for a nuclear reactor is described; such structure comprising a pair of malleable metallic non-fissionable matrix plates having confronting surfaces which are pressure bonded together and fully united to form a bonded surface, and elongated malleable wire-like fissionable fuel members separately confined and fully enclosed between the matrix plates along the interface to afford a high fuel density as well as structural integrity and effective retention of fission products. The plates have separate recesses formed in the confronting surfaces for closely receiving the wire-like fissionable fuel members. The wire-like fissionable fuel members are made of a maleable uranium alloy capable of being formed into elongated wire-like members and capable of withstanding pressure bonding. The wire-like fissionable fuel members are completely separated and isolated by fully united portions of the interface.

Travelli, A.

1988-01-19T23:59:59.000Z

431

Addressing equipment set-up time and manufacturing cost through real time inline inspection in tantalum wire manufacturing  

E-Print Network [OSTI]

For this study, a novel wire inspection system was developed to detect surface defects and monitor diameter real-time during the final wire drawing operation. Throughout his work, it was proven that the new inspection ...

González, Carlos A. (Carlos Alberto), 1972-

2004-01-01T23:59:59.000Z

432

Quantification of Liquid Holdup in the Dropping Zone of a Blast Furnace--A Cold Model Study  

E-Print Network [OSTI]

.S. GUPTA and K. NAVEEN A two-dimensional cold model study, replicating an ironmaking blast furnace dropping

433

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. 6 figs.

Finnemore, D.K.; Miller, T.A.; Ostenson, J.E.; Schwartzkopf, L.A.; Sanders, S.C.

1994-07-19T23:59:59.000Z

434

Anisotropy of radiation emitted from planar wire arrays  

SciTech Connect (OSTI)

The planar wire array (PWA) is a promising load for new multi-source inertial confinement fusion (ICF) hohlraums [B. Jones et al., Phys. Rev. Lett. 104, 125001 (2010)]. The hohlraum radiation symmetry is an important issue for ICF. It was found that extreme ultraviolet and sub-keV photon emission from PWAs may have considerable anisotropy in the load azimuthal plane. This experimental result is obtained on the UNR 1–1.7 MA Zebra generator. The time-dependent anisotropy effect is detected. This feature is studied in 2D numerical simulations and can be explained by initial anisotropy of implosion of those non-cylindrical loads radiating essentially as surface sources in sub-keV quanta and also by radiation absorption in cold magnetized plasma tails forming in the direction of magnetic compression.

Kantsyrev, V. L.; Esaulov, A. A.; Safronova, A. S.; Williamson, K. M.; Osborne, G. C.; Shrestha, I. K.; Weller, M. E.; Shlyaptseva, V. V. [Department of Physics, University of Nevada, Reno, Nevada 89557 (United States)] [Department of Physics, University of Nevada, Reno, Nevada 89557 (United States); Chuvatin, A. S. [Laboratorie de Physique des Plasmas, Ecole Polytechnique, 91128 Palaiseau (France)] [Laboratorie de Physique des Plasmas, Ecole Polytechnique, 91128 Palaiseau (France); Rudakov, L. I. [Icarus Research, Inc., P. O. Box 30780, Bethesda, Maryland 20824-0780 (United States)] [Icarus Research, Inc., P. O. Box 30780, Bethesda, Maryland 20824-0780 (United States); Velikovich, A. [Naval Research Laboratory, Plasma Physics Division, Washington, DC 20375 (United States)] [Naval Research Laboratory, Plasma Physics Division, Washington, DC 20375 (United States)

2013-07-15T23:59:59.000Z

435

Assessing the Accuracy of Contact Angle Measurements for Sessile Drops on Liquid-Repellent Surfaces  

E-Print Network [OSTI]

Gravity-induced sagging can amplify variations in goniometric measurements of the contact angles of sessile drops on super-liquid-repellent surfaces. The very large value of the effective contact angle leads to increased ...

Srinivasan, Siddarth

436

Positive pressure drop-on-demand printhead for Three-Dimensional Printing  

E-Print Network [OSTI]

In drop-on-demand printing, wetting out of the binder fluid onto the orifice face typically has been prevented by some combination of the following: coatings on the orifice face, high surface energy fluids, and negative ...

Gleason, Blake Wilbur

2002-01-01T23:59:59.000Z

437

Interfacial Phenomena and Heat Transfer, 1 (4): 339356 (2013) EFFECT OF DROP SHAPE ON HEAT TRANSFER  

E-Print Network [OSTI]

equipment used in thermal and nuclear power plants. Several researchers have reported that drops form, followed by fresh nucleation. Numerical data obtained from the simulation show that wall shear stress

Khandekar, Sameer

438

HES Human Environmental Sciences KEY: # = new course * = course changed = course dropped  

E-Print Network [OSTI]

HES Human Environmental Sciences KEY: # = new course * = course changed = course dropped SchoolofHumanEnvironmentalSciences HES 100 AN INTRODUCTION TO PROFESSIONS IN HUMAN ENVIRONMENTAL SCIENCES. (1) An orientation to human environmental sciences, its history, contemporary issues and philosophy

MacAdam, Keith

439

Laser capillary spectrophotometric acquisition of bivariate drop size and concentration data for liquid-liquid dispersion  

DOE Patents [OSTI]

A laser capillary spectrophotometric technique measures real time or near real time bivariate drop size and concentration distribution for a reactive liquid-liquid dispersion system. The dispersion is drawn into a precision-bore glass capillary and an appropriate light source is used to distinguish the aqueous phase from slugs of the organic phase at two points along the capillary whose separation is precisely known. The suction velocity is measured, as is the length of each slug from which the drop free diameter is calculated. For each drop, the absorptivity at a given wavelength is related to the molar concentration of a solute of interest, and the concentration of given drops of the organic phase is derived from pulse heights of the detected light. This technique permits on-line monitoring and control of liquid-liquid dispersion processes. 17 figures.

Tavlarides, L.L.; Bae, J.H.

1991-12-24T23:59:59.000Z

440

Heat transfer to impacting drops and post critical heat flux dispersed flow  

E-Print Network [OSTI]

Heat transfer to drops impacting on a hot surface is examined in context of dispersions of flowing, boiling fluids. The liquid contribution to heat transfer from a hot tube to a two-phase dispersion is formulated in terms ...

Kendall, Gail E.

1978-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

The influence of return bends on the downstream pressure drop and condensation heat transfer in tubes  

E-Print Network [OSTI]

The influence of return bends on the downstream pressure drop and heat transfer coefficient of condensing refrigerant R-12 was studied experimentally. Flow patterns in glass return bends of 1/2 to 1 in. radius and 0.315 ...

Traviss, Donald P.

1971-01-01T23:59:59.000Z

442

Drop Formation and Breakup of Low Viscosity Elastic Fluids: Effects of Molecular Weight and Concentration  

E-Print Network [OSTI]

The dynamics of drop formation and pinch-off have been investigated for a series of low viscosity elastic fluids possessing similar shear viscosities, but differing substantially in elastic properties. On initial approach ...

Tirtaatmadja, Viyada

2007-01-23T23:59:59.000Z

443

Cold drawn steel wires--processing, residual stresses and ductility--part I: metallography and finite element analyses  

E-Print Network [OSTI]

Cold drawn steel wires--processing, residual stresses and ductility--part I: metallography form 29 September 2005 ABSTRACT Cold drawing steel wires lead to an increase of their mechanical that, though the steel wires are plastically deformed up to strain levels as high as 3.5, a significant

444

The effect of particle shape on pressure drop in a turbulent gas-solid suspension  

E-Print Network [OSTI]

was to experimentally compare the pressure drop in suspensions of spherical particles versus fibrous particles in the same apparatus and at the same operating conditions. The previous investigators have varied the particle size, loading ratio (lbs. flowing solids... is for a model which will predict the suspension pressure drop based on such variables as particle size and shape, Reynolds number, loading ratio, electrostatic charge, and other variables. CHAPTER II REVIEW OF LITERATURE A. General Interest in Gas-Solid...

Coughran, Mark Thomas

1984-01-01T23:59:59.000Z

445

Vaporization modeling of petroleum-biofuel drops using a hybrid multi-component approach  

SciTech Connect (OSTI)

Numerical modeling of the vaporization characteristics of multi-component fuel mixtures is performed in this study. The fuel mixtures studied include those of binary components, biodiesel, diesel-biodiesel, and gasoline-ethanol. The use of biofuels has become increasingly important for reasons of environmental sustainability. Biofuels are often blended with petroleum fuels, and the detailed understanding of the vaporization process is essential to designing a clean and efficient combustion system. In this study, a hybrid vaporization model is developed that uses continuous thermodynamics to describe petroleum fuels and discrete components to represent biofuels. The model is validated using the experimental data of n-heptane, n-heptane-n-decane mixture, and biodiesel. Since biodiesel properties are not universal due to the variation in feedstock, methods for predicting biodiesel properties based on the five dominant fatty acid components are introduced. Good levels of agreement in the predicted and measured drop size histories are obtained. Furthermore, in modeling the diesel-biodiesel drop, results show that the drop lifetime increases with the biodiesel concentration in the blend. During vaporization, only the lighter components of diesel fuel vaporize at the beginning. Biodiesel components do not vaporize until some time during the vaporization process. On the other hand, results of gasoline-ethanol drops indicate that both fuels start to vaporize once the process begins. At the beginning, the lighter components of gasoline have a slightly higher vaporization rate than ethanol. After a certain time, ethanol vaporizes faster than the remaining gasoline components. At the end, the drop reduces to a regular gasoline drop with heavier components. Overall, the drop lifetime increases as the concentration of ethanol increases in the drop due to the higher latent heat. (author)

Zhang, Lei; Kong, Song-Charng [Department of Mechanical Engineering, Iowa State University, 2025 Black Engineering Building, Ames, IA 50011 (United States)

2010-11-15T23:59:59.000Z

446

Preradiation studies for non-thermal Z-pinch wire load experiments on Saturn  

SciTech Connect (OSTI)

The implosion dynamics of compact wire arrays on Saturn are explored as a function of wire mass m, wire length {ell}, wire radii R, and radial power-flow feed geometry using the ZORK code. Electron losses and the likelihood of arcing in the radial feed adjacent the wire load are analyzed using the TWOQUICK and CYLTRAN codes. The physical characteristics of the implosion and subsequent thermal radiation production are estimated using the LASNEX code in one dimension. These analyses show that compact tungsten wire arrays with parameters suggested by D. Mosher and with a 21-nH vacuum feed geometry satisfy the empirical scaling criterion I/(M/{ell}) {approximately} 2 MA/(mg/cm) of Mosher for optimizing non-thermal radiation from z pinches, generate low electron losses in the radial feeds, and generate electric fields at the insulator stack below the Charlie Martin flashover limit thereby permitting full power to be delivered to the load. Under such conditions, peak currents of {approximately}5 MA can be delivered to wire loads {approximately}20 ns before the driving voltage reverses at the insulator stack, potentially allowing the m = 0 instability to develop with the subsequent emission of non-thermal radiation as predicted by the Mosher model.

Sanford, T.W.L.; Humphreys, D.R.; Poukey, J.W.; Marder, B.M.; Halbleib, J.A.; Crow, J.T.; Spielman, R.B. [Sandia National Labs., Albuquerque, NM (United States); Mock, R.C. [Ktech Corp., Albuquerque, NM (United States)

1994-06-01T23:59:59.000Z

447

X-ray imaging of extended magnetic domain walls in Ni80Fe20 wires  

SciTech Connect (OSTI)

We have used magnetic transmission X-ray microscopy to image magnetization configurations in 700 nm wide Ni{sub 80}Fe{sub 20} planar wires attached to 'nucleation' pads Domain walls were observed to inject only across half of the wire width but extend to several micrometers in length. Magnetostatic interactions with adjacent wires caused further unusual domain wall behavior. Micromagnetic modeling suggests the extended walls have Neel-like structure along their length and indicates weaker exchange coupling than is often assumed. These observations explain previous measurements of domain wall injection and demonstrate that magnetic domain walls in larger nanowires cannot always be considered as localized entities.

Basu, S.; Fry, P. W.; Allwood, D. A.; Bryan, M. T.; Gibbs, M. R. J.; Schrefl, T.; Im, M.-Y.; Fischer, P.

2009-06-20T23:59:59.000Z

448

Right Ventricular Migration of a Recovery IVC Filter's Fractured Wire with Subsequent Pericardial Tamponade  

SciTech Connect (OSTI)

A Recovery filter (C.R. Bard, Tempe, AZ, USA) is a device for pulmonary embolism prophylaxis. There have been few case reports involving the migration of this particular filter or of a broken wire migrating to the heart. We report a case of right ventricular migration of a fractured wire from this filter in a patient who subsequently developed pericardial tamponade and required open heart surgery to extract the fractured wire. We discuss the current US Food and Drug Administration (FDA)-approved nonpermanent inferior vena cava filters and their reported complications. These complications can be life-threatening and may require immediate surgical intervention.

Saeed, Imran [Christiana Hospital, MAP 2, Suite 2121 (United States)], E-mail: isaeed@christianacare.org; Garcia, Mark [Christiana Hospital, Department of Radiology (United States); McNicholas, Kathleen [Christiana Hospital, MAP 1, Suite 205 (United States)

2006-08-15T23:59:59.000Z

449

Light Water Reactor Sustainability (LWRS) Program – Non-Destructive Evaluation (NDE) R&D Roadmap for Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants  

SciTech Connect (OSTI)

The purpose of the non-destructive evaluation (NDE) R&D Roadmap for Cables is to support the Materials Aging and Degradation (MAaD) R&D pathway. The focus of the workshop was to identify the technical gaps in detecting aging cables and predicting their remaining life expectancy. The workshop was held in Knoxville, Tennessee, on July 30, 2012, at Analysis and Measurement Services Corporation (AMS) headquarters. The workshop was attended by 30 experts in materials, electrical engineering, U.S. Nuclear Regulatory Commission (NRC), U.S. Department of Energy (DOE) National Laboratories (Oak Ridge National Laboratory, Pacific Northwest National Laboratory, Argonne National Laboratory, and Idaho National Engineering Laboratory), NDE instrumentation development, universities, commercial NDE services and cable manufacturers, and Electric Power Research Institute (EPRI). The motivation for the R&D roadmap comes from the need to address the aging management of in-containment cables at nuclear power plants (NPPs).

Simmons, Kevin L.; Ramuhalli, Pradeep; Brenchley, David L.; Coble, Jamie B.; Hashemian, Hash; Konnik, Robert; Ray, Sheila

2012-09-14T23:59:59.000Z

450

Light Water Reactor Sustainability (LWRS) Program – Non-Destructive Evaluation (NDE) R&D Roadmap for Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants  

SciTech Connect (OSTI)

Executive Summary [partial] The purpose of the non-destructive evaluation (NDE) R&D Roadmap for Cables is to support the Materials Aging and Degradation (MAaD) R&D pathway. A workshop was held to gather subject matter experts to develop the NDE R&D Roadmap for Cables. The focus of the workshop was to identify the technical gaps in detecting aging cables and predicting their remaining life expectancy. The workshop was held in Knoxville, Tennessee, on July 30, 2012, at Analysis and Measurement Services Corporation (AMS) headquarters. The workshop was attended by 30 experts in materials, electrical engineering, and NDE instrumentation development from the U.S. Nuclear Regulatory Commission (NRC), U.S. Department of Energy (DOE) National Laboratories (Oak Ridge National Laboratory, Pacific Northwest National Laboratory, Argonne National Laboratory, and Idaho National Engineering Laboratory), universities, commercial NDE service vendors and cable manufacturers, and the Electric Power Research Institute (EPRI).

Simmons, K.L.; Ramuhali, P.; Brenchley, D.L.; Coble, J.B.; Hashemian, H.M.; Konnick, R.; Ray, S.

2012-09-01T23:59:59.000Z

451

Final Report [The c-Abl signaling network in the radioadaptive response  

SciTech Connect (OSTI)

The radioadaptive response, or radiation hormesis, i.e. a low dose of radiation can protect cells and organisms from the effects of a subsequent higher dose, is a widely recognized phenomenon. Mechanisms underlying such radiation hormesis, however, remain largely unclear. Preliminary studies indicate an important role of c-Abl signaling in mediating the radioadaptive response. We propose to investigate how c-Abl regulates the crosstalk between p53 and NF?B in response to low doses irradiation. We found in our recent study that low dose IR induces a reciprocal p53 suppression and NF?B activation, which induces HIF-a and subsequently a metabolic reprogramming resulting in a transition from oxidative phosphorylation to glycolysis. Of importance is that this glycolytic switch is essential for the radioadaptive response. This low-dose radiationinduced HIF1? activation was in sharp contrast with the high-dose IR-induced p53 activation and HIF1? inhibition. HIF1? and p53 seem to play distinct roles in mediating the radiation dose-dependent metabolic response. The induction of HIF1?-mediated glycolysis is restricted to a low dose range of radiation, which may have important implications in assessing the level of radiation exposure and its potential health risk. Our results support a dose-dependent metabolic response to IR. When IR doses are below the threshold of causing detectable DNA damage (<0.2Gy) and thus little p53 activation, HIF1? is induced resulting in induction of glycolysis and increased radiation resistance. When the radiation dose reaches levels eliciting DNA damage, p53 is activated and diminishes the activity of HIF1? and glycolysis, leading to the induction of cell death. Our work challenges the LNT model of radiation exposure risk and provides a metabolic mechanism of radioadaptive response. The study supports a need for determining the p53 and HIF1? activity as a potential reliable biological readout of radiation exposure in humans. The exquisite sensitivity of cellular metabolism to low doses of radiation could also serve as a valuable biomarker for estimating the health effects of low-level radiation exposure.

Chi-Min, Yuan

2014-01-28T23:59:59.000Z

452

INTERNATIONAL UNION OF OPERATING ENGINEERS NATIONAL HAZMAT PROGRAM - PORTER-CABLE CIRCULAR SAW OENHP: 2001-04, VERSION A  

SciTech Connect (OSTI)

Florida International University's (FIU) Hemispheric Center for Environmental Technology (HCET) evaluated five saws for their effectiveness in cutting specially prepared fiberglass-reinforced plywood crates. These crates were built as surrogates for crates that presently hold radioactively contaminated glove boxes at the Department of Energy's (DOE) Los Alamos facility. The Porter-Cable circular saw was assessed on August 15-16, 2001 (Porter-Cable No.1 and Porter-Cable No.2, respectively). During the FIU test of efficacy, a team from the Operating Engineers National Hazmat Program (OENHP) evaluated the occupational safety and health issues associated with this technology. The Porter-Cable saw is a straightforward machine for cutting wood of varying thickness. The blade is fully guarded with a fixed upper and a lower retractable guard. The lower guard retracts as the blade engages the work piece. The unit is operated with an on/off guarded trigger switch and is supported with a handgrip mounted near the front of the saw. The saw is equipped with a directional nozzle, which aims sawdust away from the operator and the line of cut. An optional vacuum system, attached to the directional nozzle, is used to remove and collect dust. During the demonstration of Porter-Cable No.1, personal noise sampling indicated that one worker was under and one was at the Occupational Safety and Health Administration's (OSHA) Action Level of 85 decibels (dBA) with time-weighted averages (TWA's) of 82.7 and 84.6 dBA, respectively. During the demonstration of Porter-Cable No.2, however, both workers did exceed the Action Level with TWA's of 89.7 and 90.0 dBA. These data are not entirely representative as they were gathered during a simulation and not at the actual worksite. Additional sampling should be conducted on-site, but the workers should wear hearing protection until it is determined that it is no longer necessary. The total nuisance dust sample for Porter-Cable No.1 was 3.53 milligrams per cubic meter (mg/m{sup 3}), which is lower than the OSHA Permissible Exposure Limit (PEL) of 15 mg/m{sup 3} and the American Conference of Governmental Industrial Hygienists' (ACGIH) Threshold Limit Value (TLV) of 10 mg/m{sup 3}. Porter-Cable No.2's nuisance dust results yielded a value of 22.05 mg/m{sup 3}, which is over the PEL and TLV. The fiber analysis for the first demonstration yielded 12.9 fibers per cubic centimeter (f/cc), which is much higher than the PEL of 1 f/cc. Galson Laboratories considered the fiber analysis for the second demonstration void due to the overloading of dust on the filter. Kickback, the sudden reaction to a pinched blade, is possible with this saw and could cause the saw to lift up and out of the work piece and toward the operator. Proper work position and firm control of the saw minimizes the potential for a sprain or strain. Care needs to be exercised to support the work piece properly and to not force the tool.

Unknown

2002-01-15T23:59:59.000Z

453

Proposal for the Award of a Blanket Contract for the Supply and Installation of Optical Fibre Cabling Systems  

E-Print Network [OSTI]

This document concerns the award of a blanket contract for the supply and installation of optical fibre cabling systems. Following a market survey carried out among 41 firms in thirteen Member States, a call for tenders (IT-3120/ST/LHC) was sent on 26 February 2003 to three firms and two consortia each consisting of two firms, in six Member States. By the closing date, CERN had received five tenders from the three firms and two consortia in six Member States. The Finance Committee is invited to agree to the negotiation of a blanket contract with DRAKA (NL), the lowest bidder, for the supply and installation of optical fibre cabling systems for a total estimated amount not exceeding 12 150 000 Swiss francs, subject to revision for inflation from 1 January 2006. The firm has indicated the following distribution by country of the contract value covered by this adjudication proposal: NL - 38%; CH - 37%; DE - 12%; FR - 8%; GB - 5%.

2003-01-01T23:59:59.000Z

454

IMPACT ANALYSIS OF SPENT FUEL DRY CASKS UNDER ACCIDENTAL DROP SCENARIOS.  

SciTech Connect (OSTI)

A series of analyses were performed to assess the structural response of spent nuclear fuel dry casks subjected to various handling and on-site transfer events. The results of these analyses are being used by the Nuclear Regulatory Commission (NRC) to perform a probabilistic risk assessment (PRA). Although the PRA study is being performed for a specific nuclear plant, the PRA study is also intended to provide a framework for a general methodology that could also be applied to other dry cask systems at other nuclear plants. The dry cask system consists of a transfer cask, used for handling and moving the multi-purpose canister (MPC) that contains the fuel, and a storage cask, used to store the MPC and fuel on a concrete pad at the site. This paper describes the analyses of the casks for two loading events. The first loading consists of dropping the transfer cask while it is lowered by a crane to a concrete floor at ground elevation. The second loading consists of dropping the storage cask while it is being transferred to the concrete storage pad outdoors. Three dimensional finite element models of the transfer cask and storage cask, containing the MPC and fuel, were utilized to perform the drop analyses. These models were combined with finite element models of the target structures being impacted. The transfer cask drop analyses considered various drop heights for the cask impacting the reinforced concrete floor at ground level. The finite element model of the target included a section of the concrete floor and concrete wall supporting the floor. The storage cask drop analyses evaluated a 30.5 cm (12 in.) drop of the cask impacting three different surfaces: reinforced concrete, asphalt, and gravel.

BRAVERMAN,J.I.; MORANTE,R.J.; XU,J.; HOFMAYER,C.H.; SHAUKAT,S.K.

2003-03-17T23:59:59.000Z

455

IMPACT ANALYSIS OF SPENT FUEL DRY CASKS UNDER ACCIDENTAL DROP SCENARIOS.  

SciTech Connect (OSTI)

A series of analyses were performed to assess the structural response of spent nuclear fuel dry casks subjected to various handling and on-site transfer events. The results of these analyses are being used by the Nuclear Regulatory Commission (NRC) to perform a probabilistic risk assessment (PRA). Although the PRA study is being performed for a specific nuclear plant, the PRA study is also intended to provide a framework for a general methodology that could also be applied to other dry cask systems at other nuclear plants. The dry cask system consists of a transfer cask, used for handling and moving the multi-purpose canister OLIIpC that contains the fuel, and a storage cask, used to store the MPC and fuel on a concrete pad at the site. This paper describes the analyses of the casks for two loading events. The first loading consists of dropping the transfer cask while it is lowered by a crane to a concrete floor at ground elevation. The second loading consists of dropping the storage cask while it is being transferred to the concrete storage pad outdoors. Three dimensional finite element models of the transfer cask and storage cask, containing the MPC and fuel, were utilized to perform the drop analyses. These models were combined with finite element models of the target structures being impacted. The transfer cask drop analyses considered various drop heights for the cask impacting the reinforced concrete floor at ground level. The finite element model of the target included a section of the concrete floor and concrete wall supporting the floor. The storage cask drop analyses evaluated a 30.5 cm (12 in.) drop of the cask impacting three different surfaces: reinforced concrete, asphalt, and gravel.

BRAVERMAN,J.I.; MORANTE,R.J.; XU,J.; HOFMAYER,C.H.; SHAUKAT,S.K.

2003-08-17T23:59:59.000Z

456

Effect of bed pressure drop on performance of a CFB boiler  

SciTech Connect (OSTI)

The effect of bed pressure drop and bed inventory on the performances of a circulating fluidized bed (CFB) boiler was studied. By using the state specification design theory, the fluidization state of the gas-solids flow in the furnace of conventional CFB boilers was reconstructed to operate at a much lower bed pressure drop by reducing bed inventory and control bed quality. Through theoretical analysis, it was suggested that there would exist a theoretical optimal value of bed pressure drop, around which the boiler operation can achieve the maximal combustion efficiency and with significant reduction of the wear of the heating surface and fan energy consumption. The analysis was validated by field tests carried out in a 75 t/h CFB boiler. At full boiler load, when bed pressure drop was reduced from 7.3 to 3.2 kPa, the height of the dense zone in the lower furnace decreased, but the solid suspension density profile in the upper furnace and solid flow rate were barely influenced. Consequently, the average heat transfer coefficient in the furnace was kept nearly the same and the furnace temperature increment was less than 17{sup o}C. It was also found that the carbon content in the fly ash decreased first with decreasing bed pressure drop and then increased with further increasing bed pressure drop. The turning point with minimal carbon content was referred to as the point with optimal bed pressure drop. For this boiler, at the optimum point the bed pressure was around 5.7 kPa with the overall excess air ratio of 1.06. When the boiler was operated around this optimal point, not only the combustion efficiency was improved, but also fan energy consumption and wear of heating surface were reduced. 23 refs., 6 figs., 4 tabs.

Hairui Yang; Hai Zhang; Shi Yang; Guangxi Yue; Jun Su; Zhiping Fu [Tsinghua University, Beijing (China). Department of Thermal Engineering

2009-05-15T23:59:59.000Z

457

Development of preference models for regular dissemination of informational and educational programming through cable television systems of Texas  

E-Print Network [OSTI]

DEVELOPMENT OF PREFERENCE MODELS FOR REGULAR DISSEMINATION OF INFORMATIONAL AND EDUCATIONAL PROGRAMMING THROUGH CABLE TELEVISION SYSTEMS OF TEXAS A Thesis by LARRY ARNOLD QUINN Submitted to the Graduate College of Texas A&M University... in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August l973 Major Subject: Educational Administration (Public Relations) DEVELOPMENT OF PREFERENCE MODELS FOR REGULAR DISSEMINATION OF INFORMATIONAL AND EDUCATIONAL PROGRAMMING...

Quinn, Larry Arnold

1973-01-01T23:59:59.000Z

458

Radar-based dynamic testing of the cable-suspended bridge crossing the Ebro River at Amposta, Spain  

SciTech Connect (OSTI)

Microwave remote sensing is the most recent experimental methodology suitable to the non-contact measurement of deflections on large structures, in static or dynamic conditions. After a brief description of the radar measurement system, the paper addresses the application of microwave remote sensing to ambient vibration testing of a cable-suspended bridge. The investigated bridge crosses the Ebro River at Amposta, Spain and consists of two steel stiffening trusses and a series of equally spaced steel floor beams; the main span is supported by inclined stay cables and two series of 8 suspension cables. The dynamic tests were performed in operational conditions, with the sensor being placed in two different positions so that the response of both the steel deck and the arrays of suspension elements was measured. The experimental investigation confirms the simplicity of use of the radar and the accuracy of the results provided by the microwave remote sensing as well as the issues often met in the clear localization of measurement points.

Gentile, Carmelo [Politecnico di Milano, Dept. of Architecture, Built environment and Construction engineering (ABC), Piazza Leonardo da Vinci 32, 20133 Milan (Italy); Luzi, Guido [Centre Tecnòlogic de Telecomunicacions de Catalunya (CTTC), Division of Geomatics, Av. Gauss, 7 E-08860 Castelldefels (Barcelona) (Spain)

2014-05-27T23:59:59.000Z

459

Review of nuclear power plant safety cable aging studies with recommendations for improved approaches and for future work.  

SciTech Connect (OSTI)

Many U. S. nuclear power plants are approaching 40 years of age and there is a desire to extend their life for up to 100 total years. Safety-related cables were originally qualified for nuclear power plant applications based on IEEE Standards that were published in 1974. The qualifications involved procedures to simulate 40 years of life under ambient power plant aging conditions followed by simulated loss of coolant accident (LOCA). Over the past 35 years or so, substantial efforts were devoted to determining whether the aging assumptions allowed by the original IEEE Standards could be improved upon. These studies led to better accelerated aging methods so that more confident 40-year lifetime predictions became available. Since there is now a desire to potentially extend the life of nuclear power plants way beyond the original 40 year life, there is an interest in reviewing and critiquing the current state-of-the-art in simulating cable aging. These are two of the goals of this report where the discussion is concentrated on the progress made over the past 15 years or so and highlights the most thorough and careful published studies. An additional goal of the report is to suggest work that might prove helpful in answering some of the questions and dealing with some of the issues that still remain with respect to simulating the aging and predicting the lifetimes of safety-related cable materials.

Gillen, Kenneth Todd; Bernstein, Robert

2010-11-01T23:59:59.000Z

460

Proposal for the Award of a Contract for the Supplyof Superconducting 600 A Multi-Conductor Cable for the LHC  

E-Print Network [OSTI]

This document concerns the award of a contract for the supply of 25 450 metres of superconducting 600 A multi-conductor cable for the LHC. Following a market survey carried out among 55 firms in fourteen Member States, a call for tenders (IT-3140/LHC/LHC) was sent on 6 January 2003 to seven firms in six Member States. By the closing date, CERN had received five tenders from five firms in four Member States. The Finance Committee is invited to agree to the negotiation of a contract with HEW-KABEL (DE), the lowest bidder, for the supply of 25 450 metres of superconducting 600 A multi-conductor cable for a total amount of 800 796 euros (1 174 704 Swiss francs), not subject to revision, with options for additional purchases of up to a further 5% of superconducting multi-conductor cable for an amount not exceeding 40 040 euros (58 735 Swiss francs), not subject to revision, bringing the total amount to 840 836 euros (1 233 439 Swiss francs), not subject to revision. The rate of exchange used is that stipulated in ...

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable 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

Air quality investigations of the Sandia National Laboratories Sol se Mete Aerial Cable Facility  

SciTech Connect (OSTI)

The air quality implications of the test and evaluation activities at the Sandia National Laboratories Sol se Mete Aerial Cable Facility are examined. All facets of the activity that affect air quality are considered. Air contaminants produced directly include exhaust products of rocket motors used to accelerate test articles, dust and gas from chemical explosives, and exhaust gases from electricity generators in the test arenas. Air contaminants produced indirectly include fugitive dust and exhaust contaminants from vehicles used to transport personnel and material to the test area, and effluents produced by equipment used to heat the project buildings. Both the ongoing program and the proposed changes in the program are considered. Using a reliable estimate of th maximum annual testing level, the quantities of contaminants released by project activities ar computed either from known characteristics of test items or from EPA-approved emission factors Atmospheric concentrations of air contaminants are predicted using EPA dispersion models. The predicted quantities and concentrations are evaluated in relation to Federal, New Mexico, an Bernalillo County air quality regulations and the human health and safety standards of the American Conference of Governmental Industrial Hygienists.

Gutman, W.M.; Silver, R.J. [New Mexico State Univ., Las Cruces, NM (United States). Physical Science Lab.

1994-12-01T23:59:59.000Z

462

UWB radar technique for arc detection in coaxial cables and waveguides  

SciTech Connect (OSTI)

As spread spectrum technology has revolutionized the communications industry, Ultra Wide Band (UWB) technology is dramatically improving radar performances. These advanced signal processing techniques have been adapted to coaxial cables and waveguides to provide new features and enhanced performance on arc detection. UWB signals constituted by a sequence of chips (properly chosen to reduce side lobes and to improve detection accuracy) are transmitted along the transmission lines at a specified Pulse Repetition Frequency (PRF) and their echoes are received by means of directional couplers. The core of the receiver is an ultra high-speed correlator implemented in a Digital Signal Processor (DSP). When a target (arc) is detected, its position and its 'radar cross section' are calculated to be able to provide the arc position along the transmission line and to be able to classify the type of detected arc. The 'background scattering' is routinely extracted from the received signal at any pulse. This permits to be resilient to the background structure of transmission lines (bends, junctions, windows, etc.). Thanks to the localization feature, segmentation is also possible for creating sensed and non-sensed zones (for example, to be insensitive to antenna load variations)

Maggiora, R.; Salvador, S. [Politecnico di Torino, Department of Electronics, Torino (Italy)

2009-11-26T23:59:59.000Z

463

Heat Transfer -2 A long copper wire is used to carry an electric current and has an electrical resistance of 0.4 ohm  

E-Print Network [OSTI]

Heat Transfer - 2 A long copper wire is used to carry an electric current and has an electrical the electrical heat generation per length of wire (W/m) when current is 170 A. c) (10 pts) Find the steady state temperature of the wire for b). d) (10 pts) Find the electrical heat generation per length of wire (W/m) when

Virginia Tech

464

Characterizations of a CERN NbTi Reference Wire at LBNL  

E-Print Network [OSTI]

et al. , report number LBNL-62392 Characterizations of aNbTi Reference Wire at LBNL ? A. Godeke † D. R. Dietderich,tests – and analysis – between LBNL, BNL and Fermilab within

Godeke, A.; Dietderich, D.R.; Higley, H.C.; Liggins, N.L.

2007-01-01T23:59:59.000Z

465

A wire scanner system for characterizing the BNL energy recovery LINAC beam position monitor system  

SciTech Connect (OSTI)

A stepper motor controlled wire scanner system has recently been modified to support testing of the Brookhaven National Laboratory (BNL) Collider-Accelerator department's Energy Recovery Linac (ERL) beam position monitor (BPM) system. The ERL BPM consists of four 9.33 mm diameter buttons mounted at 90 degree spacing in a cube with 1.875 inch inside diameter. The buttons were designed by BNL and fabricated by Times Microwave Systems. Libera brilliance single pass BPM electronic modules with 700 MHz bandpass filter, manufactured by Instrumentation Technologies, will be used to measure the transverse beam positions at 14 locations around the ERL. The wire scanner assembly provides the ability to measure the BPM button response to a pulsed wire, and evaluate and calibrate the Libera position measurement electronics. A description of the wire scanner system and test result data will be presented.

Michnoff R.; Biscardi, C.; Cerniglia, P.; Degen, C.; Gassner, D.; Hoff, L.; Hulsart, R.

2012-04-15T23:59:59.000Z

466

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

Broader source: Energy.gov [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...

467

Adaptive inverse modeling of a shape memory alloy wire actuator and tracking control with the model  

E-Print Network [OSTI]

It is well known that the Preisach model is useful to approximate the effect of hysteresis behavior in smart materials, such as piezoactuators and Shape Memory Alloy(SMA) wire actuators. For tracking control, many researchers estimate a Preisach...

Koh, Bong Su

2009-06-02T23:59:59.000Z

468

Two-dimensional magnetohydrodynamic studies of implosion modes of nested wire array z-pinches  

SciTech Connect (OSTI)

Implosion dynamics of nested wire arrays in (r, ?) geometry was studied with two-dimensional magnetohydrodynamic (2D MHD) simulations. Three different implosion modes are obtained by just changing the wire number of the outer array, when the other conditions, such as the initial radius, length, mass of each array, the wire number of the inner array, and the discharge voltage waveform, are fixed. Simulation results show that the effect of discrete wires, which cannot be described by the thin shell inductive model, will influence the distribution of current between the outer and inner arrays at the early stage, and the discrepancy between results from MHD and thin shell model increases with the interwire gap of the outer array.

Huang, Jun; Ding, Ning, E-mail: ding-ning@iapcm.ac.cn; Xue, Chuang; Sun, Shunkai [Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China)

2014-07-15T23:59:59.000Z

469

Fire Together Wire Together Come Together Cornelius Weber and Jochen Triesch  

E-Print Network [OSTI]

Fire Together ­ Wire Together ­ Come Together Cornelius Weber and Jochen Triesch Frankfurt-Organization of Orientation Maps, Lateral Connections, and Dynamic Receptive Fields in the Pri- mary Visual Cortex. C. Weber

Weber, Cornelius

470

Nonequilibrium transport through quantum-wire junctions and boundary defects for free massless bosonic fields  

E-Print Network [OSTI]

We consider a model of quantum-wire junctions where the latter are described by conformal-invariant boundary conditions of the simplest type in the multicomponent compactified massless scalar free field theory representing the bosonized Luttinger liquids in the bulk of wires. The boundary conditions result in the scattering of charges across the junction with nontrivial reflection and transmission amplitudes. The equilibrium state of such a system, corresponding to inverse temperature $\\beta$ and electric potential $V$, is explicitly constructed both for finite and for semi-infinite wires. In the latter case, a stationary nonequilibrium state describing the wires kept at different temperatures and potentials may be also constructed. The main result of the present paper is the calculation of the full counting statistics (FCS) of the charge and energy transfers through the junction in a nonequilibrium situation. Explicit expressions are worked out for the generating function of FCS and its large-deviations asym...

Gaw?dzki, Krzysztof

2015-01-01T23:59:59.000Z

471

Entrapment of Guide Wire in an Inferior Vena Cava Filter: A Technique for Removal  

SciTech Connect (OSTI)

Entrapment of a central venous catheter (CVC) guide wire in an inferior vena cava (IVC) filter is a rare, but reported complication during CVC placement. With the increasing use of vena cava filters (VCFs), this number will most likely continue to grow. The consequences of this complication can be serious, as continued traction upon the guide wire may result in filter dislodgement and migration, filter fracture, or injury to the IVC. We describe a case in which a J-tipped guide wire introduced through a left subclavian access without fluoroscopic guidance during CVC placement was entrapped at the apex of an IVC filter. We describe a technique that we used successfully in removing the entrapped wire through the left subclavian access site. We also present simple useful recommendations to prevent this complication.

Abdel-Aal, Ahmed Kamel, E-mail: akamel@uabmc.edu; Saddekni, Souheil [University of Alabama at Birmingham, Department of Radiology (United States)] [University of Alabama at Birmingham, Department of Radiology (United States); Hamed, Maysoon Farouk [University of Alabama at Birmingham, Department of Anesthesia (United States)] [University of Alabama at Birmingham, Department of Anesthesia (United States); Fitzpatrick, Farley [Radiology Specialists of Louisville (United States)] [Radiology Specialists of Louisville (United States)

2013-04-15T23:59:59.000Z

472

Water/Wastewater Treatment Plant Field Device Wiring Method Decision Analysis  

E-Print Network [OSTI]

The choice of field device wiring method for water and wastewater treatment plant design is extremely complex and contains many variables. The choice not only affects short-term startup and equipment costs, but also long-term operations...

Dicus, Scott C.

2011-12-16T23:59:59.000Z

473

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

474

Experimental evaluation of wire mesh for design as a bearing damper  

E-Print Network [OSTI]

Wire mesh vibration dampers have been the subject of some very encouraging experiments at the Texas A&M Turbomachinery laboratories for the past several years and have emerged as an excellent replacement for squeeze film dampers. Their capability...

Choudhry, Vivek Vaibhav

2004-11-15T23:59:59.000Z

475

Experimental examination of wire mesh dampers subjected to large amplitude displacements  

E-Print Network [OSTI]

, including: temperature insensitivity, oil-free operation, and the ability to contain large amplitude vibrations. Furthermore, due to their direct damping and lack of cross-coupled stiffness, the wire mesh reduces the response to imbalance and increases...

Jones, Adam Matthew

2009-06-02T23:59:59.000Z

476

Fabrication of superconducting wire using organometallic precursors and infiltration  

SciTech Connect (OSTI)

Organometallic precursors from naphthenic acid and metal nitrates were used for the synthesis of YBCO oxide superconducting compounds. The characteristics of metal naphthenates as organometallic precursors were investigated by IR spectra, viscosity measurements, and infiltration. 123 superconducting compound obtained from 123 naphthenate showed a Tc of 90{degree}K and a rather dense and elongated microstructure. Also, the melting behavior of Ba-cuprates which were used for 123 making was studied. A low-temperature melting process was developed to fabricate silver-sheathed superconducting wire with the powder-in-tube method; flowing argon gas is introduced to the system at 930-945{degree}C to reduce the melting temperature of the 123 compound without silver sheath melting. It resulted in a 90{degree}K Tc superconducting core with dense and locally aligned microstructure. SEM-EDS and XRD analysis, 4-probe resistance and Jc measurements, and carbon-content determinations were carried out to characterize the microstructure, grain alignment, and superconducting properties of the samples.

Lee, Y.J.

1991-01-01T23:59:59.000Z

477

Long-distance photoinitiated electron transfer through polyene molecular wires  

SciTech Connect (OSTI)

Long-chain polyenes can be used as molecular wires to facilitate electron transfer between a photo-excited donor and an acceptor in an artificial photosynthetic system. The authors present data here on two Zn-porphyrin-polyene-anthraquinone molecules possessing either 5 or 9 all trans double bonds between the donor and acceptor, 1 and 2. The center-to-center distances between the porphyrin and the quinone in these relatively rigid molecules are 25 A for 1 and 35 A for 2. Selective picosecond laser excitation of the Zn-porphyrin in 1 and 2 results in the very rapid transfer of an electron to the anthraquinone in < 2 ps and 10 ps, respectively. The resultant radical ion pairs recombine with tau = 10 ps for 1 and tau = 25 ps for 2. The electron transfer rates remain remarkably rapid over these long distances. The involvement of polyene radical cations in the mechanism of the radical ion pair recombination reaction is clear from the transient absorption spectra of 1 and 2, which show strong absorbances in the near-infrared. The strong electronic coupling between the Zn-porphyrin and the anthraquinone provided by low-lying states of the polyene make it possible to transfer an electron rapidly over very long distances.

Wasielewski, M.R.; Johnson, D.G.; Svec, W.A.; Kersey, K.M.; Cragg, D.E.; Minsek, D.W.

1988-01-01T23:59:59.000Z

478

Simulation and analysis of the plutonium shipping container subject to 30-foot drops  

SciTech Connect (OSTI)

The shipping container 5320 is a shipping package for radioactive materials. In order to maintain the component in this packaging within the sub-critical state when subjected to any kind of Hypothetical Accident conditions (HAC), this Type B packaging is designed with various impact limiters. The present study is to examine the energy absorbing capacity of the impact limiter design of this container subjected to a 30-foot drop onto a flat unyielding horizontal surface in each of the three critical dropping orientations. This paper presents the results of a three dimensional nonlinear dynamic impact analysis. This analysis shows the deformed configuration of the container caused by the impact and also determines the effects of different stress wave paths in three distinct drops on the stress states in the critical component. The solution to the problem was obtained using the ABAQUS (explicit) finite element computer code. The nonlinearity of this analysis involves large structural deformation, elasto-plastic materials with strain hardening as well as multiple contact interfaces. Three drop orientations were studied, namely, top down impact, bottom down impact and side impact. Results will be compared against actual drop test data.

Gong, C.; Gupta, N.K.; Gromada, R.J. [Westinghouse Savannah River Co., Aiken, SC (United States). Savannah River Technology Center

1995-12-31T23:59:59.000Z

479

Investigation of pressure drop in capillary tube for mixed refrigerant Joule-Thomson cryocooler  

SciTech Connect (OSTI)

A capillary tube is commonly used in small capacity refrigeration and air-conditioning systems. It is also a preferred expansion device in mixed refrigerant Joule-Thomson (MR J-T) cryocoolers, since it is inexpensive and simple in configuration. However, the flow inside a capillary tube is complex, since flashing process that occurs in case of refrigeration and air-conditioning systems is metastable. A mixture of refrigerants such as nitrogen, methane, ethane, propane and iso-butane expands below its inversion temperature in the capillary tube of MR J-T cryocooler and reaches cryogenic temperature. The mass flow rate of refrigerant mixture circulating through capillary tube depends on the pressure difference across it. There are many empirical correlations which predict pressure drop across the capillary tube. However, they have not been tested for refrigerant mixtures and for operating conditions of the cryocooler. The present paper assesses the existing empirical correlations for predicting overall pressure drop across the capillary tube for the MR J-T cryocooler. The empirical correlations refer to homogeneous as well as separated flow models. Experiments are carried out to measure the overall pressure drop across the capillary tube for the cooler. Three different compositions of refrigerant mixture are used to study the pressure drop variations. The predicted overall pressure drop across the capillary tube is compared with the experimentally obtained value. The predictions obtained using homogeneous model show better match with the experimental results compared to separated flow models.

Ardhapurkar, P. M. [Mechanical Engineering Department, Indian Institute of Technology Bombay, Mumbai, MS 400 076 India and S. S. G. M. College of Engineering Shegaon, MS 444 203 (India); Sridharan, Arunkumar; Atrey, M. D. [Mechanical Engineering Department, Indian Institute of Technology Bombay, Mumbai, MS 400 076 (India)

2014-01-29T23:59:59.000Z

480

A model for pressure drop in two-phase gas-liquid downflow through packed columns  

SciTech Connect (OSTI)

The nature of the interaction between the flowing phases in a cocurrent gasliquid downflow through packed beds depends on the type of the flow regime. The interaction is poor and geometric in nature in gas-continuous flow and becomes high and dynamic in pulse flow due to gas dispersion, acceleration, and mixing of the liquid in the pulses. Models to calculate pressure drop in each of the flow regimes are presented, taking into account the respective interactions. Experimental data on pressure drops and liquid holdups were measured in gas-continuous flow for 3 mm glass spheres and 6 mm Raschig rings. An air-water system is used. The literature data on pressure drops and the experimental data, covering liquid velocities from 0.001 m/s to 0.029 m/s and gas velocities from 0.097 m/s to 2 m/s, were compared with the calculated values. It was found that the pressure drop due to dynamic interaction can be as low as 10% and as much as 80% of the total pressure drop for the data examined in this work. An empirical correlation for holdup in gas-continuous flow is given for Raschig rings.

Rao, V.G.; Drinkenburg, A.A.H.

1985-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "drop cable wire" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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481

"Millikan oil drops" as quantum transducers between electromagnetic and gravitational radiation  

E-Print Network [OSTI]

Pairs of Planck-mass-scale drops of superfluid helium coated by electrons (i.e., "Millikan oil drops"), when levitated in the presence of strong magnetic fields and at low temperatures, can be efficient quantum transducers between electromagnetic (EM) and gravitational (GR) radiation. A Hertz-like experiment, in which EM waves are converted at the source into GR waves, and then back-converted at the receiver from GR waves back into EM waves, should be practical to perform. This would open up observations of the gravity-wave analog of the Cosmic Microwave Background from the extremely early Big Bang, and also communications directly through the interior of the Earth.

Raymond Y. Chiao

2007-02-25T23:59:59.000Z

482

Influence of a local change of depth on the behavior of bouncing oil drops  

E-Print Network [OSTI]

The work of Couder \\textit{et al} (see also Bush \\textit{et al}) inspired consideration of the impact of a submerged obstacle, providing a local change of depth, on the behavior of oil drops in the bouncing regime. In the linked videos, we recreate some of their results for a drop bouncing on a uniform depth bath of the same liquid undergoing vertical oscillations just below the conditions for Faraday instability, and show a range of new behaviors associated with change of depth. This article accompanies a fluid dynamics video entered into the Gallery of Fluid Motion of the 66th Annual Meeting of the APS Division of Fluid Dynamics.

Carmigniani, Remi; Symon, Sean; McKeon, Beverley J

2013-01-01T23:59:59.000Z

483

Dipole induced transparency in drop-filter cavity-waveguide systems  

E-Print Network [OSTI]

We show that a waveguide that is normally opaque due to interaction with a drop-filter cavity can be made transparent when the drop filter is also coupled to a dipole. A transparency condition is derived between the cavity lifetime and vacuum Rabi frequency of the dipole. This condition is much weaker than strong coupling, and amounts to simply achieving large Purcell factors. Thus, we can observe transparency in the weak coupling regime. We describe how this effect can be useful for designing quantum repeaters for long distance quantum communication.

Edo Waks; Jelena Vuckovic

2005-12-05T23:59:59.000Z

484

Electrical Core Transformer for Grid Improvement Incorporating Wire Magnetic Components  

SciTech Connect (OSTI)

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

485

Towards a unified x-by-wire solution with HUMS, HM & TTP: Lessons learned in implementing it to a drive-by-wire vehicle  

E-Print Network [OSTI]

for alternatively powered vehicles such as hybrids and electric vehicles require additional real-time control due it to a drive-by-wire vehicle John Melentis Elias Stipidis Periklis Charchalakis Falah Ali Vetronics Research capability for vehicles. TTP is a safety-critical network, designed specifically to meet requirements

Paris-Sud XI, Université de

486

Ratcheting Motion of Liquid Drops on Gradient Surfaces Susan Daniel, Sanjoy Sircar, Jill Gliem, and Manoj K. Chaudhury*  

E-Print Network [OSTI]

Ratcheting Motion of Liquid Drops on Gradient Surfaces Susan Daniel, Sanjoy Sircar, Jill Gliem an interesting scenario when thedropissubjectedtoaperiodicforce.Likeaconventional ratchet, the periodic force

Chaudhury, Manoj K.

487

Nano-Structured Mesoporous Silica Wires with Intra-Wire Lamellae via Evaporation-Induced Self-Assembly in Space-Confined Channels  

SciTech Connect (OSTI)

Evaporation-induced self-assembly (EISA) of silica sol-gel ethanol-water solution mixtures with block-copolymer were studied inside uniform micro/nano channels. Nano-structured mesoporous silica wires, with various intra-wire self-assembly structures including lamellae, were prepared via EISA process but in space-confined channels with the diameter ranging from 50 nm to 200 nm. Membranes made of anodized aluminum oxide (AAO) and track-etched polycarbonate (EPC) were utilized as the arrays of space-confined channels (i.e., 50, 100, and 200-nm EPC and 200-nm AAO) for infiltration and drying of mixture solutions; these substrate membranes were submerged in mixture solutions consisting of a silica precursor, a structure-directing agent, ethanol, and water. After the substrate channels were filled with the solution under vacuum impregnation, the membrane was removed from the solution and dried in air. The silica precursor used was tetra-ethyl othosilicate (TEOS), and the structure-directing agent employed was triblock copolymer Pluronic-123 (P123). It was found that the formation of the mesoporous nanostructures in silica wires within uniform channels were significantly affected by the synthesis conditions including (1) pre-assemble TEOS aging time, (2) the evaporation rate during the vacuum impregnation, and (3) the air-dry temperature. The obtained intra-wire structures, including 2D-hexagonal rods and lamellae, were studied by scanning transmission electron microscopy (STEM). A steric hindrance effect seems to explain well the observed polymer-silica mesophase formation tailored by TEOS aging time. The evaporation effect, air-drying effect, and AAO-vs-EPC substrate effect on the mesoporous structure of the formed silica wires were also presented and discussed.

Hu, Michael Z. [ORNL; Shi, Donglu [University of Cincinnati; Blom, Douglas Allen [ORNL

2014-01-01T23:59:59.000Z

488

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

SciTech Connect (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

489

Laser radiation scattering from the wires and fibers of imploding arrays on the Angara-5-1 facility  

SciTech Connect (OSTI)

A method is developed for measurements of laser radiation scattering by wires and fibers in different types of imploding arrays in the initial stage of plasma production at discharge currents per wire of up to 2 kA for aluminum arrays and up to 8 kA for tungsten arrays. The experiments were carried out on the Angara-5-1 facility at a current density in the wires of 10{sup 8} A/cm{sup 2} and current growth rate of {approx}10{sup 13} A/s. It is found that the indicatrix of laser radiation reflected from the wires (fibers) in cylindrical and conical arrays is modified at currents of 0.1-10 kA per wire (fiber). The experimental data on the reflection and scattering of laser radiation from wires and fibers are compared with the results of numerical simulations of their electric explosion in vacuum. It is proposed that the change in the reflection indicatrix of laser radiation is caused by the onset of thermal instabilities. The typical size of density and temperature inhomogeneities on the wire surface is in a range of 10-20 {mu}m, which probably results in a transition from specular to diffuse reflection of laser radiation. A simultaneous abrupt (over 2-3 ns) reduction in the reflection intensity from several wires of an array indicates a homogeneous distribution of the discharge current over the irradiated wires. This closes the issue of the quality of the contact between the wires and the electrodes. The obtained experimental information is of considerable importance for the development of numerical codes for simulations of the implosion of wire arrays and the refinement of the wire parameters in the initial stage of plasma production.

Grabovski, E. V.; Gritsuk, A. N.; Smirnov, V. P.; Aleksandrov, V. V.; Oleinik, G. M. [Troitsk Institute for Innovation and Fusion Research (Russian Federation); Oreshkin, V. I. [Russian Academy of Sciences, Institute of High-Current Electronics, Siberian Branch (Russian Federation); Frolov, I. N.; Laukhin, Ya. N.; Gribov, A. N.; Samokhin, A. A. [Troitsk Institute for Innovation and Fusion Research (Russian Federation); Sasorov, P. V. [Alikhanov Institute for Theoretical and Experimental Physics (Russian Federation); Mitrofanov, K. N.; Medovshchikov, S. F. [Troitsk Institute for Innovation and Fusion Research (Russian Federation); Khishchenko, K. V. [Russian Academy of Sciences, Joint Institute for High Temperatures (Russian Federation); Rupasov, A. A.; Bolkhovitinov, E. A. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)

2011-11-15T23:59:59.000Z

490

Equilibrium behavior of sessile drops under surface tension, applied external fields, and material variations  

E-Print Network [OSTI]

Equilibrium behavior of sessile drops under surface tension, applied external fields, and material properties such as dielectric constants, resistivities, and surface tension coefficients. The analysis energy storage in the liquid, will lead to 1/R ``line-tension''-type terms if and only if the energy

Shapiro, Benjamin

491

Compound pendant drop tensiometry for surface tension measurement at zero Bond  

E-Print Network [OSTI]

is stationary, the net force acting on it must be zero. The net force is the sum of three forces: (iCompound pendant drop tensiometry for surface tension measurement at zero Bond number of the particle Fweight acting downwards. We now calculate each of these components separately, adopting

Chan, Derek Y C

492

Analytical and Experimental Study of Annular Two-Phase Flow Friction Pressure Drop Under Microgravity  

E-Print Network [OSTI]

to design reliable two-phase systems. The main objective of this present research is to develop a new mathematical model that can accurately predict the annular two-phase friction pressure drop to optimize the design of two-phase systems. The two-phase flow...

Nguyen, Ngoc Thanh

2011-02-22T23:59:59.000Z

493

Fig. 1: Journal Articles Tab on library homepage Fig. 2 Drop down menu Engineering  

E-Print Network [OSTI]

-campus, you will be prompted to enter your myWSU ID and password as soon as you click the "search" button allows you to separate several search terms or phrases in various fields with the drop-down menu (figure search terms and list the databases it is searching (fig. 8). When the search is completed, the window

494

8:30am Registration and Drop-Off (EPS Building Lobby*)  

E-Print Network [OSTI]

Schedule 8:30am Registration and Drop-Off (EPS Building Lobby*) 9­9:20am Color Group Activity 9 Activity, Wrap-up 3:15 pm Pickup (EPS Lobby*) *The Engineering and Physical Sciences (EPS) Building

Maxwell, Bruce D.

495

Use of Drop-nets for Wild Pig Damage and Disease Abatement  

E-Print Network [OSTI]

pigs were first observed on the ranch in the mid 1990?s. In 2000, NF took ownership of ORR. Bill Hoffmann owns HR. It is unknown when pigs were first observed on ORR or HR. Past wild pig management included drop-nets and corral traps on ORR...

Gaskamp, Joshua Alden

2012-11-15T23:59:59.000Z

496

Academic Renewal Policy Undergraduate students who have dropped out or have been suspended because of poor  

E-Print Network [OSTI]

Academic Renewal Policy Undergraduate students who have dropped out or have been suspended because at Louisiana Tech University under the provisions of academic renewal. The following conditions apply: 1 was last registered for credit at any college or university and being enrolled under academic renewal. 2

Selmic, Sandra

497

Granular impact cratering by liquid drops: Understanding raindrop imprints through an analogy to asteroid strikes  

E-Print Network [OSTI]

When a granular material is impacted by a sphere, its surface deforms like a liquid yet it preserves a circular crater like a solid. Although the mechanism of granular impact cratering by solid spheres is well explored, our knowledge on granular impact cratering by liquid drops is still very limited. Here, by combining high-speed photography with high-precision laser profilometry, we investigate liquid-drop impact dynamics on granular surface and monitor the morphology of resulting impact craters. Surprisingly, we find that, despite the enormous energy and length difference, granular impact cratering by liquid drops follows the same energy scaling and reproduces the same crater morphology as that of asteroid impact craters. Inspired by this similarity, we integrate the physical insight from planetary sciences, the liquid marble model from fluid mechanics and the concept of jamming transition from granular physics into a simple theoretical framework that quantitatively describes all the main features of liquid-drop imprints in granular media. Our study sheds light on the mechanisms governing raindrop impacts on granular surfaces and reveals a remarkable analogy between familiar phenomena of raining and catastrophic asteroid strikes.

Runchen Zhao; Qianyun Zhang; Hendro Tjugito; Xiang Cheng

2014-12-23T23:59:59.000Z

498

Coalescence of Drops Near A Hydrophilic Boundary Leads to Long Range Directed Motion  

E-Print Network [OSTI]

A new mechanism for the passive removal of drop on a horizontal surface is described that does not require pre-fabrication of a surface energy gradient. The method relies upon the preparation of alternate hydrophilic/hydrophobic stripes on a surface. When one side of this surface is exposed to steam, with its other surface convectively cooled with cold water, steam condenses as a continuous film on the hydrophilic stripes but as droplets on the hydrophobic stripes. Coalescence leads to a random motion of the center of mass of the fused drops on the surface, which are readily removed as they reach near the boundary of the hydrophobic and hydrophilic zones thus resulting in a net diffusive flux of the coalesced drops from the hydrophobic to the hydrophilic stripes of the surface. Although an in-situ produced thermal gradient due to differential heat transfer coefficients of the hydrophilic and hydrophobic stripes could provide additional driving force for such a motion, it is, however, not a necessary condition for motion to occur. This method of creating directed motion of drops does not require a pre-existing wettability gradient and may have useful applications in thermal management devices.

Manoj K. Chaudhury; Aditi Chakrabarti; Tapasya Tibrewal

2014-10-08T23:59:59.000Z

499

Pressure drops for direct steam generation in line-focus solar thermal systems  

E-Print Network [OSTI]

Early direct steam generation prototypes include two central tower projects: a solar-powered enhanced oil recovery project called STEOR in the early 1980s (Romero 2002), and a solar tower projectPressure drops for direct steam generation in line-focus solar thermal systems John Pye1 , Graham

500

Under consideration for publication in J. Fluid Mech. 1 Splashing from drop impact into a deep  

E-Print Network [OSTI]

surrounding gases. We find that the splashing threshold depends on the gas's dynamic viscosity, but not its, and disintegrates into a spray of secondary droplets. Nonetheless, many basic details of this process remain obscure. Fezzaa and R. D. Deegan Fluid Viscosity Density Surface tension Drop Diameter (cp) (g/cm3 ) (dyne/cm) (cm

Deegan, Robert