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


1

Online Supplemental Information.1 1) Differences with Ball et al. (1999).2  

E-Print Network (OSTI)

equivalent6 results. The differences in ammonia introduction methods means that a direct comparison7 between convection is expected to be similar.21 There was no (iii) periodic rinsing of the flow reactor with de-ionized water as was done by Ball22 et al. Rinsing the flow reactor was not done because it would be exposed

Meskhidze, Nicholas

2

On elongated stacking fault loops in TiAl  

SciTech Connect

Depending upon strain, load orientation, alloy composition and test temperature, the deformation microstructure of TiAl contains a varied density of stacking faults ribbons. The presence of these ribbons is correlated with that of superdislocations with 1/2{l_angle}112[square bracket] Burgers vector. They are elongated along any of the {l_angle}011[square bracket] directions. The present paper focuses on their formation mechanism, especially on the reasons which make that such dipolar defects, though intrinsically unstable, tend to exhibit a reasonably constant width.

Hug, G.; Veyssiere, P. [CNRS-ONERA, Chatillon (France)

1995-12-31T23:59:59.000Z

3

Microscopic mechanisms of metastable phase formation during ball milling of intermetallic TiAl phases  

SciTech Connect

Powders of the intermetallic equilibrium phases {alpha}{sub 2}-Ti{sub 3}Al, {gamma}-TiAl and TiAl{sub 3} were ball milled in order to investigate the microscopic origins of the energetic destabilization and the transformation into metastable phases during the milling process. It was found that the intermetallic phases were chemically partially disordered on milling followed by the transformation into solid solution phases after long milling. In detail, for the {gamma} phase, the formation of numerous deformation twins, thin h.c.p. lamellae and lamellae of the 9R phase formed by an antitwin operation was observed by TEM. The disordering of the D0{sub 22}-TiAl{sub 3} phase occurred inhomogeneously in the material via the formation of antiphase boundaries on (001) planes, resulting in a f.c.c. solid solution in the final state. In summary, it can be concluded that the formation of the observed metastable phases results from chemical disordering, whereas the excess enthalpy of grain boundaries plays only a minor role for the energetical destabilization of the intermetallic compounds during milling in this case.

Klassen, T.; Oehring, M.; Bormann, R. [GKSS Research Centre, Geesthacht (Germany)] [GKSS Research Centre, Geesthacht (Germany)

1997-09-01T23:59:59.000Z

4

Glass balls  

E-Print Network (OSTI)

There is a building with 100 floors in it, and glass balls, and an integer k with the following property. If one drops a glass ball from the floor number k or higher, ...

5

Name: Lee Tsakh Robot: Ball-E  

E-Print Network (OSTI)

............................................................................................................................................ 4 #12;Page 3 Integrated System Ball-E will be based around the Epiphany DIY board developed by Tim if the hopper is full, so that users can help Ball-E if they desire to do so. These two systems for Ball-E will be made to accomplish the task of housing its control systems, actuation devices

Fang, Yuguang "Michael"

6

Ball Moss  

E-Print Network (OSTI)

Ball moss is a bromeliad that grows on trees. It is not a parasite and does not take nutrients from trees. It can be controlled, if desired, by mechanical removal or by applying fungicides that contain copper....

Crow, William T.

2000-04-18T23:59:59.000Z

7

The influence of aluminium content to the stacking fault energy in Fe-Mn-Al-C alloy system  

Science Journals Connector (OSTI)

Four Fe-30Mn-0.9C-XAl alloys are employed to investigate the influence of aluminium content to the stacking fault energy in Fe-Mn-Al-C alloy system. The range of aluminium content is zero to 8.47 wt%. ... on the ...

W. S. Yang; C. M. Wan

1990-03-01T23:59:59.000Z

8

Free Floating Atmospheric Pressure Ball Plasmas  

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

Free-Floating Atmospheric Pressure Ball Plasmas Free-Floating Atmospheric Pressure Ball Plasmas G. A. Wurden, Z. Wang, C. Ticos Los Alamos National Laboratory L Al NM 87545 USA Los Alamos, NM 87545 USA C. J. v. Wurden Los Alamos High School L Al NM 87544 Los Alamos, NM 87544 Presented at the PPPL Colloquium Sept. 17, 2008 U N C L A S S I F I E D Operated by the Los Alamos National Security, LLC for the DOE/NNSA LA-UR-08-06284 Outline of this talk *A discussion of ball lightning reports in nature *How can ball plasmas be made in the laboratory? *Detailed experiments on long lived free floating *Detailed experiments on long-lived free-floating atmospheric pressure ball plasmas C i f l b b ll l i h "b ll *Comparison of laboratory ball plasmas with "ball lightning" *Summary U N C L A S S I F I E D Operated by the Los Alamos National Security, LLC for the DOE/NNSA

9

Physics of ball lightning  

Science Journals Connector (OSTI)

An up to date description of the state of the ball lightning problem is given. The properties of ball lightning have been derived from a statistical treatment of thousands of observations. The experimental modeling of ball lightning as a whole is reviewed. The analysis leads to the conclusion that ball lightning has a rigid skeleton; a spotted structure of its glowing follows from a large difference between the radiative and mean temperatures of the ball lightning. Ball lightning is a many-sided phenomenon, and therefore has a number of analogs which are related to its separate properties and which can be modeled. The mechanical, gas-dynamical, energetic radiative and electrical processes of ball lightning are analyzed on the basis of such analogs and recent scientific information. According to this analysis, the substance composing ball lightning has a sparse fractal structure, similar to an aerogel, with the density of a gas and the behavior of a solid or liquid. The best model resembling the ball lightning structure is a knot of fractal fibers. The glowing of ball lightning is created by many thermal waves that propagate along separate fibers, use the surface energy of the structure, and form glowing hot zones with a temperature of about 2000 K. A number of models considered allow us to study the nature of ball lightning in detail.

B.M. Smirnov

1993-01-01T23:59:59.000Z

10

Tunguska Dark Matter Ball  

E-Print Network (OSTI)

It is suggested that the Tunguska event in June 1908 cm-large was due to a cm-large ball of a condensate of bound states of 6 top and 6 anti-top quarks containing highly compressed ordinary matter. Such balls are supposed to make up the dark matter as we earlier proposed. The expected rate of impact of this kind of dark matter ball with the earth seems to crudely match a time scale of 200 years between the impacts. The main explosion of the Tunguska event is explained in our picture as material coming out from deep within the earth, where it has been heated and compressed by the ball penetrating to a depth of several thousand km. Thus the effect has some similarity with volcanic activity as suggested by Kundt. We discuss the possible identification of kimberlite pipes with earlier Tunguska-like events. A discussion of how the dark matter balls may have formed in the early universe is also given.

C. D. Froggatt; H. B. Nielsen

2014-03-27T23:59:59.000Z

11

Tunguska Dark Matter Ball  

E-Print Network (OSTI)

It is suggested that the Tunguska event in June 1908 cm-large was due to a cm-large ball of a condensate of bound states of 6 top and 6 anti-top quarks containing highly compressed ordinary matter. Such balls are supposed to make up the dark matter as we earlier proposed. The expected rate of impact of this kind of dark matter ball with the earth seems to crudely match a time scale of 200 years between the impacts. The main explosion of the Tunguska event is explained in our picture as material coming out from deep within the earth, where it has been heated and compressed by the ball penetrating to a depth of several thousand km. Thus the effect has some similarity with volcanic activity as suggested by Kundt. We discuss the possible identification of kimberlite pipes with earlier Tunguska-like events. A discussion of how the dark matter balls may have formed in the early universe is also given.

Froggatt, C D

2014-01-01T23:59:59.000Z

12

Ball Packings with Periodic Constraints  

Science Journals Connector (OSTI)

We call a periodic ball packing in $$d$$d-dimensional Euclidean space periodically (resp. strictly) jammed with respect to a period lattice $$\\varLambda $$¿ if there are no nontrivial motions of the balls that preserve $$\\varLambda $$¿ (resp. that maintain ... Keywords: 52C17, Ball packings, Jamming, Periodic packings, Rigidity, Tensegrities

Robert Connelly, Jeffrey D. Shen, Alexander D. Smith

2014-12-01T23:59:59.000Z

13

Fault finder  

DOE Patents (OSTI)

A fault finder for locating faults along a high voltage electrical transmission line. Real time monitoring of background noise and improved filtering of input signals is used to identify the occurrence of a fault. A fault is detected at both a master and remote unit spaced along the line. A master clock synchronizes operation of a similar clock at the remote unit. Both units include modulator and demodulator circuits for transmission of clock signals and data. All data is received at the master unit for processing to determine an accurate fault distance calculation.

Bunch, Richard H. (1614 NW. 106th St., Vancouver, WA 98665)

1986-01-01T23:59:59.000Z

14

AL  

E-Print Network (OSTI)

AL. EMERGENCY PREPAREDNESS SYLLABUS ATTACHMENT. EMERGENCY NOTIFICATION PROCEDURES are based on a simple concept - if you hear a.

15

Green fireballs and ball lightning  

Science Journals Connector (OSTI)

...is possible that the green ball that rolled down...enable the power and energy density of the ball to...brightness, diameter and energy content are consistent...previous estimates of the energy content and density of...of the production of green fireballs in the laboratory...

2011-01-01T23:59:59.000Z

16

UNSUPERVISED CLUSTERING FOR FAULT DIAGNOSIS IN NUCLEAR POWER PLANT COMPONENTS  

E-Print Network (OSTI)

1 UNSUPERVISED CLUSTERING FOR FAULT DIAGNOSIS IN NUCLEAR POWER PLANT COMPONENTS Piero Baraldi1 on transients originated by different faults in the pressurizer of a nuclear power reactor. Key Words: Fault of Nuclear Power Plants (NPPs) [Cheon et al., 1993; Kim et al., 1996; Reifman, 1997; Zio et al., 2006a; Zio

Boyer, Edmond

17

Split-ball resonator  

E-Print Network (OSTI)

We introduce a new concept of split-ball resonator and demonstrate a strong omnidirectional magnetic dipole response for both gold and silver spherical plasmonic nanoparticles with nanometer-scale cuts. Tunability of the magnetic dipole resonance throughout the visible spectral range is demonstrated by a change of the depth and width of the nanoscale cut. We realize this novel concept experimentally by employing the laser-induced transfer method to produce near-perfect spheres and helium ion beam milling to make cuts with the nanometer resolution. Due to high quality of the spherical particle shape, governed by strong surface tension forces during the laser transfer process, and the clean, straight side walls of the cut made by helium ion milling, magnetic resonance is observed at 600 nm in gold and at 565 nm in silver nanoparticles. Structuring arbitrary features on the surface of ideal spherical resonators with nanoscale dimensions provides new ways of engineering hybrid resonant modes and ultra-high near-f...

Kuznetsov, Arseniy I; Fu, Yuan Hsing; Viswanathan, Vignesh; Rahmani, Mohsen; Valuckas, Vytautas; Kivshar, Yuri; Pickard, Daniel S; Lukiyanchuk, Boris

2014-01-01T23:59:59.000Z

18

FIRST EXPERIMENTS WITH THE PLASTIC BALL  

E-Print Network (OSTI)

FIRST EXPERIMENTS WITH THE PLASTIC BALL H.H. Gutbrod, A.scheme for one module Plastic Soil Response (based on protonS Ropidity ——» Fig. 3. Plastic Ball acceptance in the plane

Gutbrod, H.H.

2010-01-01T23:59:59.000Z

19

Dynamics of the bouncing ball  

E-Print Network (OSTI)

We describe an experiment dedicated to the study of the trajectories of a ball bouncing randomly on a vibrating plate. The system was originally used, considering a sinusoidal vibration, to illustrate period doubling and the route to chaos. Our experimental device makes it possible to impose, to the plate, arbitrary trajectories and not only sinusoidal or random, as is generally the case. We show that the entire trajectory of the ball can still be reconstructed from the measurement of the collisions times. First, we make use of the experimental system to introduce the notion of dissipative collisions and to propose three different ways to measure the associated restitution coefficient. Then, we report on correlations in the chaotic regime and discuss theoretically the complex pattern which they exhibit in the case of a sinusoidal vibration. At last, we show that the use of an aperiodic motion makes it possible to get rid of part of the correlations and to discuss theoretically the average energy of the ball in the chaotic regime.

Jean-Yonnel Chastaing; Eric Bertin; Jean-Christophe Géminard

2014-05-14T23:59:59.000Z

20

Ball Packings with Periodic Constraints  

E-Print Network (OSTI)

We call a periodic ball packing in d-dimensional Euclidean space periodically (strictly) jammed with respect to a period lattice if there are no nontrivial motions of the balls that preserve the period (that maintain some period with smaller or equal volume). In particular, we call a packing consistently periodically (strictly) jammed if it is periodically (strictly) jammed on every one of its periods. After extending a well-known bar framework and stress condition to strict jamming, we prove that a packing with period Lambda is consistently strictly jammed if and only if it is strictly jammed with respect to Lambda and consistently periodically jammed. We next extend a result about rigid unit mode spectra in crystallography to characterize periodic jamming on sublattices. After that, we prove that there are finitely many strictly jammed packings of m unit balls and other similar results. An interesting example shows that the size of the first sublattice on which a packing is first periodically unjammed is not bounded. Finally, we find an example of a consistently periodically jammed packing of low density \\delta = \\frac{4 \\pi}{6 \\sqrt{3} + 11} + \\epsilon ~ 0.59, where \\epsilon is an arbitrarily small positive number. Throughout the paper, the statements for the closely related notions of periodic infinitesimal rigidity and affine infinitesimal rigidity for tensegrity frameworks are also given.

Robert Connelly; Jeffrey D. Shen; Alexander D. Smith

2013-01-04T23:59:59.000Z

Note: This page contains sample records for the topic "al fault ball" 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

Ball feeder for replenishing evaporator feed  

DOE Patents (OSTI)

Vapor source material such as uranium, which is to be dropped into a melt in an evaporator, is made into many balls of identical diameters and placed inside a container. An elongated sloping pipe is connected to the container and leads to the evaporator such that these balls can travel sequentially therealong by gravity. A metering valve in this pipe for passing these balls one at a time is opened in response to a signal when it is ascertained by a detector that there is a ball ready to be passed. A gate in the pipe near the evaporator momentarily stops the motion of the traveling ball and is then opened to allow the ball drop into the melt at a reduced speed.

Felde, D.K.; McKoon, R.H.

1993-03-23T23:59:59.000Z

22

TRW/Ball/Kodak Competition Sensitive TRW/Ball/Kodak Competition Sensitive  

E-Print Network (OSTI)

TRW/Ball/Kodak Competition Sensitive TRW/Ball/Kodak Competition Sensitive TRW James Webb Space reaction wheel noise · Heritage components · Compatible with ESA #12;This material is approved for public

Sirianni, Marco

23

TRW/Ball/Kodak Competition Sensitive TRW/Ball/Kodak Competition Sensitive  

E-Print Network (OSTI)

TRW/Ball/Kodak Competition Sensitive TRW/Ball/Kodak Competition Sensitive TRW James Webb Space momentum buildup Spacecraft Bus · Isolates reaction wheel noise · Heritage components #12;02-JWST-0001 - 3

Sirianni, Marco

24

TRW/Ball/Kodak Competition Sensitive TRW/Ball/Kodak Competition Sensitive  

E-Print Network (OSTI)

TRW/Ball/Kodak Competition Sensitive TRW/Ball/Kodak Competition Sensitive TRW James Webb Space Deployable Optical Telescope Assembly (DOTA) Primary Mirror Structure Hinges and Latches Reaction Wheel

Sirianni, Marco

25

Telescoping magnetic ball bar test gage  

DOE Patents (OSTI)

A telescoping magnetic ball bar test gage for determining the accuracy of machine tools, including robots, and those measuring machines having non-disengagable servo drives which cannot be clutched out. Two gage balls are held and separated from one another by a telescoping fixture which allows them relative radial motional freedom but not relative lateral motional freedom. The telescoping fixture comprises a parallel reed flexure unit and a rigid member. One gage ball is secured by a magnetic socket knuckle assembly which fixes its center with respect to the machine being tested. The other gage ball is secured by another magnetic socket knuckle assembly which is engaged or held by the machine in such manner that the center of that ball is directed to execute a prescribed trajectory, all points of which are equidistant from the center of the fixed gage ball. As the moving ball executes its trajectory, changes in the radial distance between the centers of the two balls caused by inaccuracies in the machine are determined or measured by a linear variable differential transformer (LVDT) assembly actuated by the parallel reed flexure unit. Measurements can be quickly and easily taken for multiple trajectories about several different fixed ball locations, thereby determining the accuracy of the machine.

Bryan, J.B.

1982-03-15T23:59:59.000Z

26

Telescoping magnetic ball bar test gage  

DOE Patents (OSTI)

A telescoping magnetic ball bar test gage for determining the accuracy of machine tools, including robots, and those measuring machines having non-disengageable servo drives which cannot be clutched out. Two gage balls (10, 12) are held and separated from one another by a telescoping fixture which allows them relative radial motional freedom but not relative lateral motional freedom. The telescoping fixture comprises a parallel reed flexure unit (14) and a rigid member (16, 18, 20, 22, 24). One gage ball (10) is secured by a magnetic socket knuckle assembly (34) which fixes its center with respect to the machine being tested. The other gage ball (12) is secured by another magnetic socket knuckle assembly (38) which is engaged or held by the machine in such manner that the center of that ball (12) is directed to execute a prescribed trajectory, all points of which are equidistant from the center of the fixed gage ball (10). As the moving ball (12) executes its trajectory, changes in the radial distance between the centers of the two balls (10, 12) caused by inaccuracies in the machine are determined or measured by a linear variable differential transformer (LVDT) assembly (50, 52, 54, 56, 58, 60) actuated by the parallel reed flexure unit (14). Measurements can be quickly and easily taken for multiple trajectories about several different fixed ball (10) locations, thereby determining the accuracy of the machine.

Bryan, James B. (Pleasanton, CA)

1984-01-01T23:59:59.000Z

27

Software fault avoidance issues  

Science Journals Connector (OSTI)

This article aims to discuss various issues of software fault avoidance. Software fault avoidance aims to produce fault free software through various approaches having the common objective of reducing the number of latent defects in software programs.

Goutam Kumar Saha

2006-11-01T23:59:59.000Z

28

CHARGED PARTICLE IDENTIFICATION WITH MODULES OF THE PLASTIC BALL  

E-Print Network (OSTI)

WITH MODULES OF THE PLASTIC BALL H.H. Gutbrod, M.R. Maier,WITH MODULES OF THE PLASTIC BALL H.H. Gutbrod, M.R. Maier*,of modules of the Plastic Ball detector for positive pions

Gutbrod, H.H.

2010-01-01T23:59:59.000Z

29

Q-balls, Integrability and Duality  

E-Print Network (OSTI)

This paper is concerned with the dynamics and interactions of Q-balls in (1+1)-dimensions. The asymptotic force between well-separated Q-balls is calculated to show that Q-balls can be attractive or repulsive depending upon their relative internal phase. An integrable model with exact multi-Q-ball solutions is investigated and found to be of use in explaining the dynamics in non-integrable theories. In particular, it is demonstrated that the dynamics of small Q-balls in a generic class of non-integrable models tends towards integrable dynamics as the charge decreases. Long-lived oscillations of a single Q-ball can also be understood in terms of a deformation of an exact breather solution in the integrable model. Finally, we show that any theory with Q-ball solutions has a dual description in which a stationary Q-ball is dual to a static kink, with an interchange of Noether and topological charges.

Peter Bowcock; David Foster; Paul Sutcliffe

2009-01-08T23:59:59.000Z

30

Carrying the Ball on Radon  

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

4 4 Carrying the Ball on Radon Part one of two parts Radon gas was "discovered" as an important environmental issue in the mid-1980s, when levels 1,000 times the average of about 1.5 picocuries/liter (pCi/l) were found in homes in the eastern United States. Radon is present in all homes, and even in outdoor air, because it is a gaseous decay product of radium naturally present in the soil. Since even an average indoor exposure to radon's own decay products-isotopes of polonium, bismuth, and lead-was estimated to cause a 0.1 to 1% risk of lung cancer, depending on whether one smoked, these high levels sounded an immediate alarm. By the mid-1980s, scientists had already proven that indoor radon levels 10 to 100 times the average-an unacceptable amount-occurred in homes in

31

Geological investigation of a lineated massif at the Kane Transform Fault: implications for oceanic core complexes  

Science Journals Connector (OSTI)

...al. 1998; Blackman et al. 1998) and marine multichannel seismic data (White et al...or as striations formed by abrasional wear along a fault surface (Cann et al. 1997...they are not the products of abrasional wear on frictional fault zones, they need not...

1999-01-01T23:59:59.000Z

32

The Structure and Stability of Ball Lightning  

Science Journals Connector (OSTI)

...the reaction will be endothermic and can refrigerate its surface. The ball can thus be considered as a thermochemical heat pump powered by the electric field of a thunder storm. The surface refrigeration allows the condensation of water in quantities...

1994-01-01T23:59:59.000Z

33

Chiral Magnetic Effect from Q-balls  

E-Print Network (OSTI)

We apply a generic framework of linear sigma models for revealing a mechanism of the mysterious phenomenon, the chiral magnetic effect, in quark-gluon plasma. An electric current arises along a background magnetic field, which is given rise to by Q-balls (non-topological solitons) of the linear sigma model with axial anomaly. We find additional alternating current due to quark mass terms. The hadronic Q-balls, baby boson stars, may be created in heavy-ion collisions.

Minoru Eto; Koji Hashimoto; Hideaki Iida; Akitsugu Miwa

2010-12-15T23:59:59.000Z

34

Extractable organic material in fault zones as a tool to1 investigate frictional stress2  

E-Print Network (OSTI)

by measuring modern heat flow in boreholes in the vicinity of the San Andreas37 Fault [Brune et al., 1969 the temperature of a fault immediately after a large earthquake [Kano et al., 2006;44 Tanaka et al., 2001], however, no project to date has succeeded in drilling fast and deep enough45 with sufficient repeated

Polissar, Pratigya J.

35

Ball State building massive geothermal system | Department of Energy  

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

Ball State building massive geothermal system Ball State building massive geothermal system Ball State building massive geothermal system March 19, 2010 - 5:47pm Addthis Workers drill boreholes for a geothermal heating and cooling system at Ball State University’s campus in Muncie, Ind. | Photo courtesy of Ball State University Workers drill boreholes for a geothermal heating and cooling system at Ball State University's campus in Muncie, Ind. | Photo courtesy of Ball State University Paul Lester Communications Specialist for the Office of Energy Efficiency and Renewable Energy Ball State University is building America's largest ground source district geothermal heating and cooling system. The new operation will save the school millions of dollars, slash greenhouse gases and create jobs. The project will also "expand how America will define the use of

36

Ball State building massive geothermal system | Department of Energy  

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

Ball State building massive geothermal system Ball State building massive geothermal system Ball State building massive geothermal system March 19, 2010 - 5:47pm Addthis Workers drill boreholes for a geothermal heating and cooling system at Ball State University’s campus in Muncie, Ind. | Photo courtesy of Ball State University Workers drill boreholes for a geothermal heating and cooling system at Ball State University's campus in Muncie, Ind. | Photo courtesy of Ball State University Paul Lester Communications Specialist, Office of Energy Efficiency and Renewable Energy Ball State University is building America's largest ground source district geothermal heating and cooling system. The new operation will save the school millions of dollars, slash greenhouse gases and create jobs. The project will also "expand how America will define the use of

37

Controlled-source electromagnetic mapping of a faulted sandstone aquifer in central Texas  

E-Print Network (OSTI)

across a fault (Randolph 1991), due to permeability reduction in the deformation zone, but in some cases can be enhanced along the fault slip plane (Antonellini and Aydin 1994), i. e. parallel to the fault. A knowledge of subsurface fault distributions... the electromagnetic response. Seaborne et al. (1979) interpreted the anomalies as the edge effect of thin horizontal sheets of low resistivity beds, as opposed to the high conductivity response of the material in a fault zone. In a similar study, Hazell er al...

Gorman, Erin Margaret

2012-06-07T23:59:59.000Z

38

Fault Current Limiters  

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

Fault Fault Current Limiters Superconducting & Solid-state Power Equipment Office of Electricity Delivery and Energy Reliability www.oe.energy.gov Office of Electricity Delivery and Energy Reliability, OE-1 U.S. Department of Energy - 1000 Independence Avenue, SW - Washington, DC 20585 Plugging America Into the Future of Power What are FCLs? A fault is an unintentional short circuit, or partial short-circuit, in an electric circuit. A variety of factors such as lightning, downed power lines, or crossed power lines cause faults. During a fault, excessive current-called fault current- flows through the electrical system often resulting in a failure of one section of that system by causing a

39

4. pi. physics with the plastic ball  

SciTech Connect

4 ..pi.. data taken with the Plastic Ball show that cluster production in relativistic nuclear collisions depends on both the size of the participant volume and the finite size of the cluster. The measurement of the degree of thermalization and the search for collective flow will permit the study of the applicability of macroscopic concepts such as temperature and density.

Gutbrod, H.H.; Loehner, H.; Poskanzer, A.M.; Renner, T.; Riedesel, H.; Ritter, H.G.; Warwick, A.; Weik, F.; Wieman, H.

1982-10-01T23:59:59.000Z

40

SHORT-RUN MONEY DEMAND Laurence Ball  

E-Print Network (OSTI)

SHORT-RUN MONEY DEMAND Laurence Ball Johns Hopkins University August 2002 I am grateful with Goldfeld's partial adjustment model. A key innovation is the choice of the interest rate in the money on "near monies" -- close substitutes for M1 such as savings accounts and money market mutual funds

Niebur, Ernst

Note: This page contains sample records for the topic "al fault ball" 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

Neutrino Balls and Gamma-Ray Bursts  

E-Print Network (OSTI)

We propose a mechanism by which the neutrino emission from a supernova-type explosion can be converted into a gamma-ray burst of total energy $\\sim 10^{50}$ ergs. This occurs naturally if the explosion is situated inside a ball of trapped neutrinos, which in turn may lie at a galactic core. There are possible unique signatures of this scenario.

B. Holdom; R. A. Malaney

1993-06-17T23:59:59.000Z

42

STRUCTURE OF NESTED SEQUENCES OF BALLS IN BANACH SPACES  

E-Print Network (OSTI)

STRUCTURE OF NESTED SEQUENCES OF BALLS IN BANACH SPACES P. BANDYOPADHYAY, V. P. FONF, B.-L. LIN, AND M. MART´IN Abstract. In this paper, we study the structure of the union of unbounded nested of an unbounded nested sequence of balls is a cone if the centers of the balls lie in a finite dimensional

Martín, Miguel

43

Fault Location and Incipient Fault Detection in Distribution Cables.  

E-Print Network (OSTI)

??A set of fault location algorithms for underground medium voltage cables, two incipient fault detection schemes for distribution cables and a state estimation method for… (more)

Xu, Zhihan

2011-01-01T23:59:59.000Z

44

DAFT: decoupled acyclic fault tolerance  

Science Journals Connector (OSTI)

Higher transistor counts, lower voltage levels, and reduced noise margin increase the susceptibility of multicore processors to transient faults. Redundant hardware modules can detect such errors, but software transient fault detection techniques are ... Keywords: multicore, speculation, transient fault

Yun Zhang; Jae W. Lee; Nick P. Johnson; David I. August

2010-09-01T23:59:59.000Z

45

Solar system fault detection  

DOE Patents (OSTI)

A fault detecting apparatus and method are provided for use with an active solar system. The apparatus provides an indication as to whether one or more predetermined faults have occurred in the solar system. The apparatus includes a plurality of sensors, each sensor being used in determining whether a predetermined condition is present. The outputs of the sensors are combined in a pre-established manner in accordance with the kind of predetermined faults to be detected. Indicators communicate with the outputs generated by combining the sensor outputs to give the user of the solar system and the apparatus an indication as to whether a predetermined fault has occurred. Upon detection and indication of any predetermined fault, the user can take appropriate corrective action so that the overall reliability and efficiency of the active solar system are increased.

Farrington, Robert B. (Wheatridge, CO); Pruett, Jr., James C. (Lakewood, CO)

1986-01-01T23:59:59.000Z

46

Solar system fault detection  

DOE Patents (OSTI)

A fault detecting apparatus and method are provided for use with an active solar system. The apparatus provides an indication as to whether one or more predetermined faults have occurred in the solar system. The apparatus includes a plurality of sensors, each sensor being used in determining whether a predetermined condition is present. The outputs of the sensors are combined in a pre-established manner in accordance with the kind of predetermined faults to be detected. Indicators communicate with the outputs generated by combining the sensor outputs to give the user of the solar system and the apparatus an indication as to whether a predetermined fault has occurred. Upon detection and indication of any predetermined fault, the user can take appropriate corrective action so that the overall reliability and efficiency of the active solar system are increased.

Farrington, R.B.; Pruett, J.C. Jr.

1984-05-14T23:59:59.000Z

47

Extractable organic material in fault zones as a tool to investigate frictional stress Pratigya J. Polissar a,  

E-Print Network (OSTI)

in boreholes in the vicinity of the San Andreas Fault (Brune et al., 1969; Lachenbruch and Sass, 1980; 1992 the temperature of a fault immediately after a large earthquake (Kano et al., 2006; Tanaka et al., 2001), however, no project to date has succeeded in drilling fast and deep enough with sufficient repeated measurements

Polissar, Pratigya J.

48

Automatic ball bar for a coordinate measuring machine  

DOE Patents (OSTI)

An automatic ball bar for a coordinate measuring machine determines the accuracy of a coordinate measuring machine having at least one servo drive. The apparatus comprises a first and second gauge ball connected by a telescoping rigid member. The rigid member includes a switch such that inward radial movement of the second gauge ball relative to the first gauge ball causes activation of the switch. The first gauge ball is secured in a first magnetic socket assembly in order to maintain the first gauge ball at a fixed location with respect to the coordinate measuring machine. A second magnetic socket assembly secures the second gauge ball to the arm or probe holder of the coordinate measuring machine. The second gauge ball is then directed by the coordinate measuring machine to move radially inward from a point just beyond the length of the ball bar until the switch is activated. Upon switch activation, the position of the coordinate measuring machine is determined and compared to known ball bar length such that the accuracy of the coordinate measuring machine can be determined. 5 figs.

Jostlein, H.

1997-07-15T23:59:59.000Z

49

Automatic ball bar for a coordinate measuring machine  

DOE Patents (OSTI)

An automatic ball bar for a coordinate measuring machine determines the accuracy of a coordinate measuring machine having at least one servo drive. The apparatus comprises a first and second gauge ball connected by a telescoping rigid member. The rigid member includes a switch such that inward radial movement of the second gauge ball relative to the first gauge ball causes activation of the switch. The first gauge ball is secured in a first magnetic socket assembly in order to maintain the first gauge ball at a fixed location with respect to the coordinate measuring machine. A second magnetic socket assembly secures the second gauge ball to the arm or probe holder of the coordinate measuring machine. The second gauge ball is then directed by the coordinate measuring machine to move radially inward from a point just beyond the length of the ball bar until the switch is activated. Upon switch activation, the position of the coordinate measuring machine is determined and compared to known ball bar length such that the accuracy of the coordinate measuring machine can be determined.

Jostlein, Hans (Naperville, IL)

1997-01-01T23:59:59.000Z

50

Fault Intersection | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Fault Intersection Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Fault Intersection Dictionary.png Fault Intersection: Fault intersections are junctions between normal faults and either transversely oriented strike-slip or oblique-slip faults. Subsurface fluid flow in these areas is enhanced by multiple minor faults that connect the major intersecting structures, forming highly fractured zones or dilational quadrants with increased permeability. Other definitions:Wikipedia Reegle Controlling Structures List of controlling structures typically associated with geothermal

51

RadBall Technology For Hot Cell Characterization  

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

A new, non-electrical, remote radiation mapping device known as RadBall has been developed by the National Nuclear Laboratory (NNL) in the United Kingdom.

52

Collective flow measured with the Plastic Ball  

SciTech Connect

The experimental results from the Plastic Ball detector have contributed vastly to the understanding of the reaction mechanism of nuclear collisions at several hundred MeV per nucleon. The discovery of the collective flow phenomena (bounce-off of spectator fragments, side-splash in the reaction plane, and squeeze-out out of the reaction plane), as they were predicted by hydrodynamical models, has led to the experimental observation of compressed nuclear matter, which is a necessary condition before one can study the equation of state in detail and search for phase transitions at higher energies. 39 refs., 9 figs., 1 tab.

Ritter, H.G.; Gutbrod, H.H.; Kampert, K.H.; Kolb, B.; Poskanzer, A.M.; Schicker, R.; Schmidt, H.R.; Siemiarczuk, T.

1989-08-01T23:59:59.000Z

53

Ion implantation of silicon nitride ball bearings  

SciTech Connect

Hypothesis for ion implantation effect was that stress concentrations reflected into the bulk due to topography such as polishing imperfections, texture in the race, or transferred material, might be reduced due to surface amorphization. 42 control samples were tested to an intended runout period of 60 h. Six ion implanted balls were tested to an extended period of 150 h. Accelerated testing was done in a V groove so that wear was on two narrow wear tracks. Rutherford backscattering, XRPS, profilometry, optical microscopy, nanoindentation hardness, and white light interferometry were used. The balls were implanted with 150-keV C ions at fluence 1.1x10{sup 17}/cm{sup 2}. The samples had preexisting surface defects (C-cracks), so the failure rate of the control group was unacceptable. None of the ion-implanted samples failed in 150 h of testing. Probability of randomly selecting 6 samples from the control group that would perform this well is about 5%, so there is good probability that ion implantation improved performance. Possible reasons are discussed. Wear tracks, microstructure, and impurity content were studied in possible relation to C-cracks.

Williams, J.M. [Oak Ridge National Lab., TN (United States); Miner, J.R. [United Technologies, Pratt and Whitney, West Palm Beach, FL (United States)

1996-09-01T23:59:59.000Z

54

Simulation and optimization of a two-wheeled, ball- flinging robot  

E-Print Network (OSTI)

the ping-pong ball and the wheel respectively. Location of mc are the radius of the wheel and the ball. m, m b , and msure the ball is caught between the wheels and the body. See

Chen, Po-Ting

2010-01-01T23:59:59.000Z

55

Constructionism 2010 Robotic Educational Platform based on Ball Robots  

E-Print Network (OSTI)

Constructionism 2010 1 Robotic Educational Platform based on Ball Robots Zuzana Zajícková further on: we propose a creative and non-conventional platform, which goes beyond the traditional wheeled and entertaining educational experience. The idea of an autonomous ball robot is not new. Successful robots were

Petrovic, Pavel

56

Reinforcement learning of ball screw feed drive controllers  

Science Journals Connector (OSTI)

Feedback controllers for ball screw feed drives may provide great accuracy in positioning, but have no close analytical solution to derive the desired controller. Reinforcement Learning (RL) is proposed to provide autonomous adaptation and learning of ... Keywords: Ball screw feed drive, Feedback control, Reinforcement learning

Borja Fernandez-Gauna, Igor Ansoategui, Ismael Etxeberria-Agiriano, Manuel Graña

2014-04-01T23:59:59.000Z

57

Computer hardware fault administration  

DOE Patents (OSTI)

Computer hardware fault administration carried out in a parallel computer, where the parallel computer includes a plurality of compute nodes. The compute nodes are coupled for data communications by at least two independent data communications networks, where each data communications network includes data communications links connected to the compute nodes. Typical embodiments carry out hardware fault administration by identifying a location of a defective link in the first data communications network of the parallel computer and routing communications data around the defective link through the second data communications network of the parallel computer.

Archer, Charles J. (Rochester, MN); Megerian, Mark G. (Rochester, MN); Ratterman, Joseph D. (Rochester, MN); Smith, Brian E. (Rochester, MN)

2010-09-14T23:59:59.000Z

58

Optimal fault location  

E-Print Network (OSTI)

for the pre-selected time out to pass and initiate reclosing again. If after selected number of attempts of reclosing, fault is still present, breaker lockout is taking place. There will be no more attempts to reclose automatically the breaker again....2: Trip and reclose sequences on a single breaker In the case of breaker lockout the assumption taken by the operators is that fault is permanent. Special order is issued to the maintenance for the breaker to be closed back in 4 again once...

Knezev, Maja

2009-05-15T23:59:59.000Z

59

Optimal fault location  

E-Print Network (OSTI)

for the pre-selected time out to pass and initiate reclosing again. If after selected number of attempts of reclosing, fault is still present, breaker lockout is taking place. There will be no more attempts to reclose automatically the breaker again....2: Trip and reclose sequences on a single breaker In the case of breaker lockout the assumption taken by the operators is that fault is permanent. Special order is issued to the maintenance for the breaker to be closed back in 4 again once...

Knezev, Maja

2008-10-10T23:59:59.000Z

60

Ab initio study of the effect of solute atoms on the stacking fault energy in aluminum  

Science Journals Connector (OSTI)

The stacking fault energy (SFE) in binary and ternary alloys of Al with common alloying elements was studied using density functional theory. Among these alloying elements, Fe further increases the SFE and Ge reduces the SFE of Al. The alloying elements increase the SFE by increasing the directional inhomogeneity in the electronic charge distribution of Al. The maximum value of charge difference on the fault plane, Max(??), is used to characterize how many electrons have been redistributed due to the stacking fault formation, and the SFE increases with Max(??).

Yue Qi and Raja K. Mishra

2007-06-06T23:59:59.000Z

Note: This page contains sample records for the topic "al fault ball" 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

Resonant frequency method for bearing ball inspection  

DOE Patents (OSTI)

The present invention provides for an inspection system and method for detecting defects in test objects which includes means for generating expansion inducing energy focused upon the test object at a first location, such expansion being allowed to contract, thereby causing pressure wave within and on the surface of the test object. Such expansion inducing energy may be provided by, for example, a laser beam or ultrasonic energy. At a second location, the amplitudes and phases of the acoustic waves are detected and the resonant frequencies' quality factors are calculated and compared to predetermined quality factor data, such comparison providing information of whether the test object contains a defect. The inspection system and method also includes means for mounting the bearing ball for inspection.

Khuri-Yakub, B. T. (Palo Alto, CA); Hsieh, Chung-Kao (Stanford, CA)

1993-01-01T23:59:59.000Z

62

Resonant frequency method for bearing ball inspection  

DOE Patents (OSTI)

The present invention provides for an inspection system and method for detecting defects in test objects which includes means for generating expansion inducing energy focused upon the test object at a first location, such expansion being allowed to contract, thereby causing pressure wave within and on the surface of the test object. Such expansion inducing energy may be provided by, for example, a laser beam or ultrasonic energy. At a second location, the amplitudes and phases of the acoustic waves are detected and the resonant frequencies' quality factors are calculated and compared to predetermined quality factor data, such comparison providing information of whether the test object contains a defect. The inspection system and method also includes means for mounting the bearing ball for inspection. 5 figures.

Khuri-Yakub, B.T.; Chungkao Hsieh.

1993-11-02T23:59:59.000Z

63

Recent results from the Crystal Ball  

SciTech Connect

During the past year, the Crystal Ball experiment has continued the investigation of e/sup +/e/sup -/ interactions at SPEAR. In the course of the year, we have slightly more than doubled the available datasets at the J/psi (to 2.2 x 10/sup 6/ produced J/psi) and the psi' (to 1.8 x 10/sup 6/ produced psi') resonances, and have increased the data in the 5.2 to 7.4 GeV center-of-mass (E/sub c.m./) region. The present discussion is limited to recent results obtained with the J/psi and psi' datasets, primarily dealing with transitions among the charmonium bound states.

Porter, F.C.

1981-09-01T23:59:59.000Z

64

Row fault detection system  

DOE Patents (OSTI)

An apparatus, program product and method check for nodal faults in a row of nodes by causing each node in the row to concurrently communicate with its adjacent neighbor nodes in the row. The communications are analyzed to determine a presence of a faulty node or connection.

Archer, Charles Jens (Rochester, MN); Pinnow, Kurt Walter (Rochester, MN); Ratterman, Joseph D. (Rochester, MN); Smith, Brian Edward (Rochester, MN)

2012-02-07T23:59:59.000Z

65

Tectonophysics January 2014 V. 610 pp. 200-203 Reply to comment on the article "Propagation of a lithospheric tear fault (STEP) through the western  

E-Print Network (OSTI)

of a lithospheric tear fault (STEP) through the western boundary of the Calabrian accretionary wedge offshore disagrees with our identification north of the Alfeo Seamount. A. Argnani is convinced that the tear fault et al., 2013). The track of this fault towards the north could be extended following the position

Boyer, Edmond

66

Development of a Three-Dimensional Ball Rotation Sensing System using Optical Mouse Sensors  

E-Print Network (OSTI)

to the case of a ball wheel. The system measures surface speed by using two or more optical mouse sensorsDevelopment of a Three-Dimensional Ball Rotation Sensing System using Optical Mouse Sensors Masaaki Kumagai and Ralph L. Hollis Abstract-- Robots using ball(s) as spherical wheels have the advantage

67

Design of a tree root ball transporting device  

E-Print Network (OSTI)

Tree root balls from nurseries are often too heavy for one or two people to lift and plant, but powerful machinery can be expensive for small landscaping organizations or the weekend home gardener. This thesis intends to ...

Grossman, Christopher (Christopher M.)

2007-01-01T23:59:59.000Z

68

Complex Faulting in the Yuha Desert: Implications for Fault Interaction  

E-Print Network (OSTI)

Dibblee. Geology of the Imperial Valley region, California,and tectonics of the Imperial Valley region, California. Innent faults surrounding the Imperial Valley region, southern

Kroll, Kayla Ann

2012-01-01T23:59:59.000Z

69

On Fault Coverage of Tests for Finite State Specifications  

E-Print Network (OSTI)

On Fault Coverage of Tests for Finite State Specifications A. Petrenko and G. v. Bochmann-Ville, Montréal (Québec), H3C 3J7, Canada Abstract Testing is a trade-off between increased confidence in the correctness of the implementation under test and constraints on the amount of time and effort that can

von Bochmann, Gregor

70

The method for determining the ball load and the grinding capacity of a ball-tube mill from the power consumed by its electric motor  

Science Journals Connector (OSTI)

The method for determining the ball load and the grinding capacity from the power consumed by the ball-tube mill under operating and emptying conditions is presented. The implementation of this method when gri...

L. V. Golyshev; I. S. Mysak

2012-08-01T23:59:59.000Z

71

Fault Mapping | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Fault Mapping Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Fault Mapping Details Activities (2) Areas (2) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Data Collection and Mapping Parent Exploration Technique: Data Collection and Mapping Information Provided by Technique Lithology: Stratigraphic/Structural: Locates active faults in the area of interest Hydrological: Can reveal whether faults are circulating hydrothermal fluids Thermal: Dictionary.png

72

Theory of operation for the ball rheometer  

SciTech Connect

The Hanford Site contains over 100 high-volume tanks containing high-level radioactive wastes. The tank which has received the most attention is Tank 101-SY, which is a double shell tank containing a caustic mixed-waste slurry. The ball rheometer developed in this work is intended at least initially for application in this tank. Tank 101-SY is known to periodically release flammable and toxic gases during events known as rollovers. The tank waste is largely made up of two layers, a supernatant liquid layer underneath which is a thick sludge layer. The two layers are called the convective (C) and the nonconvective (NC) regions, so called because of the thermal transport properties ascribed to each. Although they have significant uncertainty, the current theology data suggest the existence of a yield stress in the highly viscous nonconvective layer. Gas generated in the waste can be held in the NC layer if the material yield strength or its viscosity is high enough. Gas cannot be held in the C layer to any appreciable extent unless it is in solution. As gas continues to be generated by chemical or other processes, the number of gas bubbles and/or their sizes increases in the NC layer. A rollover occurs when the amount of gas trapped in the nonconvective region becomes great enough to overcome forces holding it in place. These forces are believed to be dependent on the theology of the nonconvective region and perhaps the bubble surface tension. The buoyancy forces on the bubbles exceed the restraining forces arising from the yield stress and the viscosity of the NC layer. Theology is then seen to be quite important in determining the nature of gas release events in this tank.

Shepard, C.L.; Colson, J.B. [Pacific Northwest Lab., Richland, WA (United States); Pasamehmetoglu, K.O.; Unal, C.; Edwards, J.N.; Abbott, J. [Los Alamos National Lab., NM (United States)

1994-12-01T23:59:59.000Z

73

Results obtained using the Plastic Ball  

SciTech Connect

Single-particle inclusive experiments, and experiments that additionally measure a few correlations like the associated multiplicity, have provided the main contribution to our present understanding of high-energy heavy-ion collisions. The results from those experiments are in overall agreement with calculations of the cascade and hydrodynamical models. In the cascade model the collision of two nuclei is simulated as a cascade of nucleon-nucleon collisions using measured N-N cross sections. The hydrodynamical model, on the other hand, describes the nuclear collision as that of two fluids and makes use of a nuclear equation of state relating thermal and compressional energy densities to pressure. The pressure field dominates the expansion phase and leads to collective flow of the reaction products in a preferred direction. The observation of such effects in inclusive experiments is not well established. Collective effects that manifest themselves in the shape of the event in phase space are expected to be seen best in complete event detectors that measure the final state as exclusively as presently possible by measuring most of the charged particles emitted in the reaction. In addition, those detectors are well suited to test macroscopic concepts such as equilibrium and temperature. Global methods like the sphericity or thrust analysis take into account all the correlations measured in the event and are specially designed to determine the shape of an event in phase space and thus to define a reaction plane. Recent data from the Plastic Ball experiment about the study of nuclear stopping and thermalization and on global analysis are presented.

Ritter, H.G.; Gustafsson, H.A.; Gutbrod, H.H.

1983-08-01T23:59:59.000Z

74

Major Normal Fault | Open Energy Information  

Open Energy Info (EERE)

Major Normal Fault Major Normal Fault Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Major Normal Fault Dictionary.png Major Normal Fault: Normal faults are structures in which the hanging wall is down dropped along the fault plane relative to the foot wall. They are the predominant type of structure in extensional tectonic environments, but are commonly encountered in a number of geologic settings. Other definitions:Wikipedia Reegle Controlling Structures List of controlling structures typically associated with geothermal systems: Major Normal Fault Termination of a Major Normal Fault Stepover or Relay Ramp in Normal Fault Zones Apex or Salient of Normal Fault Fault Intersection Accommodation Zone Displacement Transfer Zone Pull-Apart in Strike-Slip Fault Zone

75

Definition: Enhanced Fault Protection | Open Energy Information  

Open Energy Info (EERE)

Enhanced Fault Protection Enhanced Fault Protection Enhanced fault protection requires higher precision and greater discrimination of fault location and type with coordinated measurement among multiple devices. For distribution applications, these systems will detect and isolate faults without full-power re-closing, reducing the frequency of through-fault currents. Using high resolution sensors and fault signatures, these systems can better detect high impedance faults. For transmission applications, these systems will employ high speed communications between multiple elements (e.g., stations) to protect entire regions, rather than just single elements. They will also use the latest digital techniques to advance beyond conventional impedance relaying of transmission lines.[1] Related Terms

76

Intelligent fault diagnosis of power transmission line; -.  

E-Print Network (OSTI)

??This dissertation presents the application of recent intelligent newlinetechniques for fault diagnosis in electrical power transmission line Fault newlinesection identification classification and location are the… (more)

Malathi, V

2014-01-01T23:59:59.000Z

77

Transition-fault test generation  

E-Print Network (OSTI)

large to store in the memory of the tester. The proposed methods of test generation utilize stuck-at-fault tests to create transition-fault test sets of a smaller size. Greedy algorithms are used in the generation of both the stuck...

Cobb, Bradley Douglas

2013-02-22T23:59:59.000Z

78

Earthquake Fault Studies in Japan  

Science Journals Connector (OSTI)

17 May 1973 research-article Earthquake Fault Studies in Japan K. Kasahara The paper reviews the current status of earthquake fault studies in Japan, taking the work on the off-Honshu tectonics as an example. Within the Japanese tectonic...

1973-01-01T23:59:59.000Z

79

Areal array jetting device for ball grid arrays  

SciTech Connect

Package designs for microelectronics devices have moved from through-hole to surface mount technology in order to increase the printed wiring board real estate available by utilizing both sides of the board. The traditional geometry for surface mount devices is peripheral arrays where the leads are on the edges of the device. As the technology drives towards high input/output (I/O) count (increasing number of leads) and smaller packages with finer pitch (less distance between peripheral leads), limitations on peripheral surface mount devices arise. A solution to the peripheral surface mount issue is to shift the leads to the area under the device. This scheme is called areal array packaging and is exemplified by the ball grid array (BGA) package. In a BGA package, the leads are on the bottom surface of the package in the form of an array of solder balls. The current practice of joining BGA packages to printed wiring boards involves a hierarchy of solder alloy compositions. A high melting temperature ball is typically used for standoff. A promising alternative to current methods is the use of jetting technology to perform monolithic solder ball attachment. This paper describes an areal array jetter that was designed and built to simultaneously jet arrays of solder balls directly onto BGA substrates.

Frear, D.R.; Yost, F.G.; Schmale, D.T.; Essien, M.

1997-08-01T23:59:59.000Z

80

Observer-based fault detection for nuclear reactors  

E-Print Network (OSTI)

This is a study of fault detection for nuclear reactor systems. Basic concepts are derived from fundamental theories on system observers. Different types of fault- actuator fault, sensor fault, and system dynamics fault ...

Li, Qing, 1972-

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "al fault ball" 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

Latest Pleistocene and Holocene slip rate for the San Bernardino strand of the San Andreas fault, Plunge Creek, Southern California: Implications for strain partitioning within the southern San Andreas fault system for the last ?35 k.y.  

Science Journals Connector (OSTI)

...1986); HFa Helendale fault (Oskin et al., 2008); LCa Lytle Creek (Mezger and Weldon, 1983); Lna Lenwood fault...included stereo aerial photography (1983, U.S. Department of Agriculture [USDA], 1:14,000 scale; 1971, I.K. Curtis, 1...

Sally F. McGill; Lewis A. Owen; Ray J. Weldon II; Katherine J. Kendrick

82

Arc fault detection system  

DOE Patents (OSTI)

An arc fault detection system for use on ungrounded or high-resistance-grounded power distribution systems is provided which can be retrofitted outside electrical switchboard circuits having limited space constraints. The system includes a differential current relay that senses a current differential between current flowing from secondary windings located in a current transformer coupled to a power supply side of a switchboard, and a total current induced in secondary windings coupled to a load side of the switchboard. When such a current differential is experienced, a current travels through a operating coil of the differential current relay, which in turn opens an upstream circuit breaker located between the switchboard and a power supply to remove the supply of power to the switchboard.

Jha, Kamal N. (Bethel Park, PA)

1999-01-01T23:59:59.000Z

83

Hot Pot Detail - Evidence of Quaternary Faulting  

SciTech Connect

Compilation of published data, field observations and photo interpretation relevant to Quaternary faulting at Hot Pot.

Lane, Michael

2013-06-27T23:59:59.000Z

84

Hot Pot Detail - Evidence of Quaternary Faulting  

DOE Data Explorer (OSTI)

Compilation of published data, field observations and photo interpretation relevant to Quaternary faulting at Hot Pot.

Lane, Michael

85

Simulation and optimization of a two-wheeled, ball- flinging robot  

E-Print Network (OSTI)

Wheeled, Ball-Flinging Robot A thesis submitted in partiala Two-Wheeled, Ball-Flinging Robot by Po-Ting Chen Master ofremote controlled robot. The robot is maneuverable and

Chen, Po-Ting

2010-01-01T23:59:59.000Z

86

E-Print Network 3.0 - actuator ball bearings Sample Search Results  

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

in Figure 4, a BTU involves a large load-bearing ball supported by many small... with paint, while nonreflecting balls made out of nylon ... Source: Cooperstock, Jeremy R. -...

87

THE PLASTIC BALL - A MULTI-DETECTOR, LARGE SOLID ANGLE SPECTROMETER WITH CHARGED PARTICLE IDENTIFICATION FOR THE BEVALAC  

E-Print Network (OSTI)

of charged particles in a Plastic Ball module. (XBL 7910-of Califomia. THE PLASTIC BALL - A MULTI-DETECTOR, LARGEBerkeley, California Summary PLASTIC 8/>Ll PLASTIC WALL For

Maier, M.R.

2012-01-01T23:59:59.000Z

88

Earth-Fault Relay Equipment  

Science Journals Connector (OSTI)

... proving the reliability of the equipment. By Observing the operation of the relays at each substation with faults at selected points, the complete scheme can be put into operation with ...

1944-04-15T23:59:59.000Z

89

Whitey SCHe Ball Valves Provide Test Port Isolation  

SciTech Connect

These valves are 1/4 inch ball valves fabricated of 316 stainless steel. Packing is TFE (standard). They are used as normally closed isolation valves for test ports in the SCHe System between the gage root valve and the pressure indicator.

MISKA, C.R.

2000-09-15T23:59:59.000Z

90

Whitey SCHe Ball Valves Provide Test Port Isolation  

SciTech Connect

These valves are 1/4-inch ball valves fabricated of 316 stainless steel. Packing is TFE (standard). They are used as normally closed isolation valves for test ports in the SCHe System between the gage root valve and the pressure indicator.

MISKA, C.R.

2000-10-19T23:59:59.000Z

91

Billiards Digest November, 2012 "VEPP Part VIII: 8-Ball Pattern Drills" ILLUSTRATED PRINCIPLES  

E-Print Network (OSTI)

Billiards Digest November, 2012 "VEPP ­ Part VIII: 8-Ball Pattern Drills" ILLUSTRATED PRINCIPLES-dave-billiards.com/vepp. Last month, we looked at some useful 9-ball pattern drills from Disc III: "VEPP III ­ Patterns and Safety Play." This month, we look at some 8-ball pattern drills, also from the 3 rd DVD. You can work

Alciatore, David G.

92

Development of secondary faults between en echelon, oblique-slip faults: examples from basement controlled, small-fault systems in the Llano Uplift of central Texas  

E-Print Network (OSTI)

between and oriented oblique to the bounding faults. With increasing displacement on the bounding faults, the system of secondary faults evolves from an Elementary to a Compound, to an Advanced geometry, which includes the formation of secondary... to the primary faults. Synthetic faults form interior to and ahead of the bounding faults, increasing the effective overlap. Displacements on antithetic faults are directly related to changes in displacement on associated bounding faults. Additionally...

Hedgcoxe, Howard Reiffert

2012-06-07T23:59:59.000Z

93

Method of detecting the direction of arcing faults on power distribution feeders  

E-Print Network (OSTI)

of overcurrent relays, which Journal model is IEEE transactions on Power Delivery is required for distribution system reliability. The traveling wave directionality al- gorithms also require fairly substantial change in voltage for proper operation... is of significant magnitude to cause a current reversal in the case of a reverse fault [18]. 2. Traveling Wave Relaying The need for more accurate and fast detection of fault and direction of very high voltage transmission lines, was the base of invention...

Fernando, W. Anand Krisantha

2012-06-07T23:59:59.000Z

94

Termination of a Major Normal Fault | Open Energy Information  

Open Energy Info (EERE)

Termination of a Major Normal Fault: Major normal fault terminations or tip-lines sometimes split into multiple closely-spaced faults that result in increased...

95

VOC compliance on the ball: Aluminum can manufacturer rolls to California VOC compliance  

SciTech Connect

Since entering the North American beverage can market in 1969, Ball Corp., has increased its market share at a pace more than double the growth of the market itself. In addition to holding numerous patented advancements in can-making technology, Ball prides itself as an environmentally responsible company. When Ball decided to increase production capacity in its Fairfield, California, plant, the challenge was to produce more cans, while still complying with the state`s stringent air emissions regulations. As with other aluminum can manufacturing facilities, Ball`s coating and curing operations generate volatile organic compounds (VOCs). Ball`s permit from the state of California allows only limited amounts of VOC discharges into the atmosphere. With proposed increases in production capacities, however, the Bay Area`s Air Quality Management District--a local US EPA authority--required Ball to incinerate far more VOCs than the existing recuperative abatement system could handle. According to California regulations, facilities that wish to increase VOC emissions must install some type of VOC-control system or provide technological offsets. This regulatory pressure led Ball to seek a solution that would not only comply with emissions regulations, but would not compromise the company`s production process. Ball engineers selected a regenerative thermal oxidizer (RTO) for the Fairfield, Calif., plant. Considering the success Ball has encountered in previous experiences with this type of oxidation unit, the company immediately selected an RTO instead of catalytic oxidizers or other types of pollution control equipment.

Gay, R. [Engelhard Corp., Iselin, NJ (United States)

1997-07-01T23:59:59.000Z

96

Quaternary faults of west Texas  

SciTech Connect

North- and northwest-striking intermontane basins and associated normal faults in West Texas and adjacent Chihuahua, Mexico, formed in response to Basin and Range tectonism that began about 24 Ma ago. Data on the precise ages of faulted and unfaulted Quaternary deposits are sparse. However, age estimates made on the basis of field stratigraphic relationships and the degree of calcic soil development have helped determine that many of the faults that bound the basin margins ruptured since the middle Pleistocene and that some faults probably ruptured during the Holocene. Average recurrence intervals between surface ruptures since the middle Pleistocene appear to be relatively long, about 10,000 to 100,000 yr. Maximum throw during single rupture events have been between 1 and 3 m. Historic seismicity in West Texas is low compared to seismicity in many parts of the Basin and Range province. The largest historic earthquake, the 1931 Valentine earthquake in Ryan Flat/Lobo Valley, had a magnitude of 6.4 and no reported surface rupture. The most active Quaternary faults occur within the 120-km-long Hueco Bolson, the 70-km-long Red Light Bolson, and the > 200-km-long Salt Basins/Wild Horse Flat/Lobo Valley/Ryan Flat.

Collins, E.W.; Raney, J.A. (Univ. of Texas, Austin, TX (United States). Bureau of Economic Geology)

1993-04-01T23:59:59.000Z

97

Definition: Fault Current Limiter | Open Energy Information  

Open Energy Info (EERE)

Limiter Limiter Jump to: navigation, search Dictionary.png Fault Current Limiter A fault current limiter prevents current in an electrical circuit from exceeding a predetermined level by increasing the electrical impedance of that circuit before the current through the circuit exceeds that level. Fault current limiters are designed so as to minimize the impedance of the circuit under normal conditions to reduce losses, but increase the impedance of the circuit under fault conditions to limit fault current.[1] View on Wikipedia Wikipedia Definition A Fault Current Limiter (FCL) is a device which limits the prospective fault current when a fault occurs (e.g. in a power transmission network). The term includes superconducting devices and non-superconducting devices, however some of the more simple non-superconducting devices (such

98

Definition: Fault Current Limiting | Open Energy Information  

Open Energy Info (EERE)

Limiting Limiting Jump to: navigation, search Dictionary.png Fault Current Limiting Fault current limiting can be achieved through sensors, communications, information processing, and actuators that allow the utility to use a higher degree of network coordination to reconfigure the system to prevent fault currents from exceeding damaging levels. Fault current limiting can also be achieved through the implementation of special stand alone devices known as Fault Current Limiters (FCLs) which act to automatically limit high through currents that occur during faults.[1] Related Terms fault, fault current limiter References ↑ SmartGrid.gov 'Description of Functions' Temp LikeLike UnlikeLike You like this.Sign Up to see what your friends like. late:ISGANAttributionsmart grid,smart grid,smart grid,smart grid,

99

Development of Superconducting AC Fault Current Limiter  

Science Journals Connector (OSTI)

The authors have developed a new superconducting fault current limiter whose impedance during normal operation is very small. During fault conditions, the limiter behaves as a superconducting reactor. The limiter

Daisuke Ito; Eriko Yoneda; Tsutomu Fujioka…

1990-01-01T23:59:59.000Z

100

Test on Superconducting AC Fault Current Limiter  

Science Journals Connector (OSTI)

The authors have developed a new superconducting fault current limiter whose impedance during normal operation is very small. During fault conditions, the limiter behaves as a superconducting reactor. The limiter

Daisuke Ito; Eriko S. Yoneda…

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "al fault ball" 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

PREEARTHQUAKE AND POSTEARTHQUAKE CREEP ON THE IMPERIAL FAULT AND THE BRAWLEY FAULT ZONE1  

E-Print Network (OSTI)

(Goulty and others, 1978). The 1979 Imperial Valley earthquake was associated with surface faultingPREEARTHQUAKE AND POSTEARTHQUAKE CREEP ON THE IMPERIAL FAULT AND THE BRAWLEY FAULT ZONE1 By STEPHEN, and 2 years ofsurveys from two nail files suggests that creep events on the Imperial fault 2 to 5 months

Tai, Yu-Chong

102

Field Mapping At Central Nevada Seismic Zone Region (Shevenell, Et Al.,  

Open Energy Info (EERE)

Shevenell, Et Al., Shevenell, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Central Nevada Seismic Zone Region (Shevenell, Et Al., 2008) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes On a more local scale, Faulds et al. (2003, 2005a, 2005b, 2006) have conducted structural analysis and detailed geologic mapping at a number of sites throughout Nevada and have found that productive geothermal systems typically occur in one of several structural settings, including step-overs in normal fault zones, near the ends of major normal faults where the faults break into multiple splays, in belts of overlapping faults, at fault

103

Fault tolerant supercomputing: a software approach  

Science Journals Connector (OSTI)

Adding fault tolerance to embedded supercomputing applications is becoming an issue of great significance, especially as these applications support critical parts of our everyday life in the modern "Information Society". To this end, a software middleware ... Keywords: embedded parallel and distributed systems, fault-tolerant communication, high performance computing, maintainability, separation of design concerns, software fault tolerance, user-specified recovery strategies

E. Verentziotis; T. Varvarigou; D. Vergados; G. Deconinck

2001-01-01T23:59:59.000Z

104

The Modification of the Oppenheimer and Snyder Collapsing Dust Ball to a Static Ball in Discrete Space-time  

E-Print Network (OSTI)

Besides the singularity problem, the famous Oppenheimer and Snyder solution is discovered to be of deficiency in two aspects: the internal Friedmann space-time does not have the inherent symmetry and cannot connect to the external Schwarzschild space-time. So the process of gravitational collapse described by this solution is doubtful. The deficiency, together with the singularity problem, result from the imperfection of the field theory in continuous space-time, which is expressed by the infinite precision function theory. The space-time structure of the Oppenheimer and Snyder dust ball is founded to be discrete rather than continuous, and to describe the field theory in discrete space-time it requires a function theory with finite precision. Based on the i order real number and its equivalence class, which is defined in the real number field, the infinite precision function theory is extended to the finite precision function theory. The Einstein field equations are expressed in the form of finite precision, and then the collapsing dust ball solution in continuous space-time is modified to a static ball solution in discrete space-time. It solves all the problems of Oppenheimer and Snyder solution and shows that, with Planck length and Planck time as space-time quantum, a mechanism to resist the gravitational collapse could be obtained by the discretization of space-time.

G. Chen

2008-08-27T23:59:59.000Z

105

Fault-tolerant TCP mechanisms  

E-Print Network (OSTI)

While fault-tolerance is supported by a variety of critical services that can be accessed over the Internet, they are not robust in that they are oblivious of the impact of their tolerant mechanisms on the service they deliver. Throughputs and fail...

Satapati, Suresh Kumar

2012-06-07T23:59:59.000Z

106

Landsat TM processing in the investigation of active fault zones, South Lajas Valley Fault Zone and Cerro Goden Fault Zone as an example  

E-Print Network (OSTI)

unrecognized east- west trending fault crossing an alluvial fan on the southern side of the Lajas Valley, SWLandsat TM processing in the investigation of active fault zones, South Lajas Valley Fault Zone and geophysical data, to delineate the lateral extent of two fault zones, the South Lajas Valley Fault Zone (SLVFZ

Gilbes, Fernando

107

Darlington AL O'Reillys AL  

E-Print Network (OSTI)

CanungraCk Darlington AL Darlington Coom era R O'Reillys AL Beechmont AL Binna Burra AL BackCk Tyungun AL Numinbah Valley AL NerangR Natural Bridge Numinbah AL Little Nerang Dam AL Albert R Bromfleet AL Benobble AL Wolffdene AL Luscombe AL Wongawallan AL Mt Tamborine Canungra Pimpama R Laheys Lookout

Greenslade, Diana

108

Field Mapping At Nw Basin & Range Region (Shevenell, Et Al., 2008) | Open  

Open Energy Info (EERE)

Field Mapping At Nw Basin & Range Region (Shevenell, Field Mapping At Nw Basin & Range Region (Shevenell, Et Al., 2008) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes On a more local scale, Faulds et al. (2003, 2005a, 2005b, 2006) have conducted structural analysis and detailed geologic mapping at a number of sites throughout Nevada and have found that productive geothermal systems typically occur in one of several structural settings, including step-overs in normal fault zones, near the ends of major normal faults where the faults break into multiple splays, in belts of overlapping faults, at fault intersections, and in small pull aparts along strike-slip faults.

109

E-Print Network 3.0 - angular contact ball Sample Search Results  

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

Akron Collection: Physics 7 Development of a Three-Dimensional Ball Rotation Sensing System using Optical Mouse Sensors Summary: -driven rollers or wheels in frictional contact...

110

Method for loading, operating, and unloading a ball-bed nuclear reactor  

SciTech Connect

This patent describes a method of operating a ball-bed nuclear reactor with fuel element balls. Some have a fissionable material content different from that of others of the balls. It consists of: initially partly filling a reactor core with fuel balls of sufficient fissionable material content for establishing criticality and a desired level of power production at the completion of the partial filling and then, without any further filling of the reactor cavern, starting reactor operation; thereafter without any removal of fuel balls from the reactor cavern, filling fuel balls continually or in groups at relatively short intervals into the reactor cavern during increasing burning up of the fuel balls already, for compensation of the diminishing fissionable material content of the reactor core constituted by the fuel balls until a final total quantity of filling is reached; after the final filling quantity is reached and burning up has occurred, shutting down the reactor, cooling it off, releasing the pressure in the cavern, and thereafter unloading all the fuel balls from the reactor cavern, unloading being begun when the reactor is shut down and being completed before the reactor is restarted.

Teuchert, E.; Haas, K.A.; Gerwin, H.

1987-09-22T23:59:59.000Z

111

Measurements of the Motion of Plasma Filaments in a Plasma Ball  

SciTech Connect

Measurements were made of the motion of the filamentary structures in a plasma ball using high speed cameras and other optical detectors. These filaments traverse the ball radially at ~106 cm/sec at the driving frequency of ~26 kHz, and drift upward through the ball at ~1 cm/sec. Varying the applied high voltage and frequency caused the number, length, and diameter of the filaments to change. A custom plasma ball was constructed to observe the effects of varying gas pressure and species on the filament structures.

M. Campanell, J. Laird, T. Provost, S. Vasquez, S.J. Zweben

2010-01-26T23:59:59.000Z

112

RadBall Technology For Hot Cell Characterization  

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

Tech Fact Sheet Savannah River National Laboratory South Carolina RadBall Technology For Hot Cell Characterization Challenge Operations at various DOE sites have resulted in substantial radiological contamination of tools, equipment, and facilities. A critical step in planning and implementing Deactivation and Decommissioning (D&D) of contaminated facilities involves the development of an accurate assessment of the radiological, chemical, and structural conditions inside the facilities. The use of remote technologies to gather this information is imperative to keep worker exposures as-low-as reasonably achievable (ALARA) in these highly contaminated environments, which are usually associated with extremely high radiological dose rates. Quantitative characterization data

113

Neotectonics of Panama. I. Major fault systems  

SciTech Connect

The direction and rate of relative plate motion across the Caribbean-Nazca boundary in Panama is poorly known. This lack of understanding can be attributed to diffuse seismicity; lack of well constrained focal mechanisms from critical areas; and dense tropical vegetation. In order to better understand the relation of plate motions to major fault systems in Panama, the authors have integrated geologic, remote sensing, earthquake and UTIG marine seismic reflection data. Three areas of recent faulting can be distinguished in Panama and its shelf areas; ZONE 1 of eastern Panama consists of a 70 km wide zone of 3 discrete left-lateral strike-slip faults (Sanson Hills, Jaque River, Sambu) which strike N40W and can be traced as continuous features for distances of 100-150 km; ZONE 2 in central Panama consists of a diffuse zone of discontinuous normal(.) faults which range in strike from N40E, N70E; ZONE 3 in western Panama consists of a 60 km wide zone of 2 discrete, left-lateral(.) strike-slip faults which strike N60W and can be traced as continuous features for distances of 150 km; ZONE 3 faults appear to be continuous with faults bounding the forearc Teraba Trough of Costa Rica. The relation of faults of ZONE 3 to faults of ZONE 2 and a major fault bounding the southern Panama shelf is unclear.

Corrigan, J.; Mann, P.

1985-01-01T23:59:59.000Z

114

Ball-grid array architecture for microfabricated ion traps  

E-Print Network (OSTI)

State-of-the-art microfabricated ion traps for quantum information research are approaching nearly one hundred control electrodes. We report here on the development and testing of a new architecture for microfabricated ion traps, built around ball-grid array (BGA) connections, that is suitable for increasingly complex trap designs. In the BGA trap, through-substrate vias bring electrical signals from the back side of the trap die to the surface trap structure on the top side. Gold-ball bump bonds connect the back side of the trap die to an interposer for signal routing from the carrier. Trench capacitors fabricated into the trap die replace area-intensive surface or edge capacitors. Wirebonds in the BGA architecture are moved to the interposer. These last two features allow the trap die to be reduced to only the area required to produce trapping fields. The smaller trap dimensions allow tight focusing of an addressing laser beam for fast single-qubit rotations. Performance of the BGA trap as characterized with $^{40}$Ca$^+$ ions is comparable to previous surface-electrode traps in terms of ion heating rate, mode frequency stability, and storage lifetime. We demonstrate two-qubit entanglement operations with $^{171}$Yb$^+$ ions in a second BGA trap.

Nicholas D. Guise; Spencer D. Fallek; Kelly E. Stevens; K. R. Brown; Curtis Volin; Alexa W. Harter; Jason M. Amini; Robert E. Higashi; Son Thai Lu; Helen M. Chanhvongsak; Thi A. Nguyen; Matthew S. Marcus; Thomas R. Ohnstein; Daniel W. Youngner

2014-12-19T23:59:59.000Z

115

Apex or Salient of Normal Fault | Open Energy Information  

Open Energy Info (EERE)

Apex or Salient of Normal Fault Apex or Salient of Normal Fault Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Apex or Salient of Normal Fault Dictionary.png Apex or Salient of Normal Fault: Normal faults may intersect in the subsurface to form a fault apex or salient. Apices or salients of normal faults account for 3% of structural controls in the Great Basin. Other definitions:Wikipedia Reegle Controlling Structures List of controlling structures typically associated with geothermal systems: Major Normal Fault Termination of a Major Normal Fault Stepover or Relay Ramp in Normal Fault Zones Apex or Salient of Normal Fault Fault Intersection Accommodation Zone Displacement Transfer Zone Pull-Apart in Strike-Slip Fault Zone Intrusion Margins and Associated Fractures Stratigraphic Boundaries

116

An empirical evidence of Braitenberg vehicle 2b behaving as a billiard ball.  

E-Print Network (OSTI)

An empirical evidence of Braitenberg vehicle 2b behaving as a billiard ball. I. Ra~n´o Computer Sciences and Systems Engineering Dept. University of Zaragoza, Spain. Abstract. Braitenberg vehicles have ball dynamics can be used to analyse the behaviour of the vehicle. The possibility to use such vehicles

Schlipsing, Marc

117

Billiards Digest October, 2012 "VEPP Part VII: 9-Ball Pattern Drills" ILLUSTRATED PRINCIPLES  

E-Print Network (OSTI)

Billiards Digest October, 2012 "VEPP ­ Part VII: 9-Ball Pattern Drills" ILLUSTRATED PRINCIPLES at some 9-ball pattern drills from Disc III: "VEPP III ­ Patterns and Safety Play." You can work on cut, stop, follow, draw, wagon wheel, and target drills all day long and become fairly proficient with them

Alciatore, David G.

118

Restricted BPA: Applying Ball-Pivoting on the Plane Esdras Medeiros  

E-Print Network (OSTI)

Restricted BPA: Applying Ball-Pivoting on the Plane Esdras Medeiros , Luiz Velho and H triangulation method based on the ball-pivoting algorithm (BPA). The BPA is an interesting advancing front the BPA on them assuming that they have a constant third coordinate. We show that such geometrical

119

A fault location approach for fuzzy fault section estimation on radial distribution feeders  

E-Print Network (OSTI)

measured at feeder substations and the fault distance algorithm was tested using data obtained by staging faults on a model of an overhead feeder using EMTP/ATP simulation. The results obtained from the tests were promising. A simple illustration...

Andoh, Kwame Sarpong

2012-06-07T23:59:59.000Z

120

Optimal power flow considering fault current level constraints and fault current limiters  

Science Journals Connector (OSTI)

Abstract The aim of this paper is to present a novel method to dispatch the active generation power properly in the power system while incorporating fault current levels as constraints for the optimization problem. Due to the limited capacity of protective devices such as circuit breakers, allocating active power without considering fault current levels can probably lead to fault currents exceeding the rating of these devices. Hence restricting the fault current levels to an allowable amount while minimizing a specified objective function seems to be necessary. In a number of cases even the appropriate allocation of active power is not able to reduce the fault current levels to the permitted amount therefore using fault current limiters (FCL) is unavoidable. In this paper also a planning scheme is presented for the location and sizing of fault current limiters and the effect of fault current limiters on the objective functions is investigated.

Amirhossein Khazali; Mohsen Kalantar

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "al fault ball" 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

An algorithm for faulted phase and feeder selection under high impedance fault conditions  

E-Print Network (OSTI)

substation. One-line diagram of a distribution system with two feeders. Typical high impedance fault, showing little or no change in phase voltage due to the fault. . Phase voltage and high frequency current component during a staged high impedance... substation. One-line diagram of a distribution system with two feeders. Typical high impedance fault, showing little or no change in phase voltage due to the fault. . Phase voltage and high frequency current component during a staged high impedance...

Benner, Carl Lee

2012-06-07T23:59:59.000Z

122

Summary of Superconducting Fault Current Limiter Technology  

Science Journals Connector (OSTI)

In recent years, superconducting fault current limiter (SFCL) has become one of the forefront topics of current-limiting technology in the world. In this...

Linmang Wang; Pengzan Jiang; Dada Wang

2012-01-01T23:59:59.000Z

123

Research on Fault Analysis and Fault-Tolerant Control of EV/HEV Powertrain  

E-Print Network (OSTI)

presents research works in the topics of fault analysis and fault tolerant control of an electric vehicle mechanism (transition strategy) at sensor fault occurrence. Index Terms--Electric vehicle, induction motor-tolerant AC motor drives in industrial applications [9-10- 41]. II. ELECTRIC VEHICLE POWERTRAIN COMPONENTS

Brest, Université de

124

Structural Heterogeneity and Permeability in Faulted Eolian Sandstone: Implications for Subsurface Modeling of Faults  

Science Journals Connector (OSTI)

...fault that could be hydraulically significant in a reservoir...Reynolds and E. D. Dolly, eds., Mesozoic paleogeography...Jones, 1998, Fault-controlled communication in the...Reynolds and E. D. Dolly, eds., Mesozoic paleogeog-raphy...Jones, 1998, Fault-controlled communication in theSleipner...

Zoe K. Shipton; James P. Evans; Kim R. Robeson; Craig B. Forster; Stephen Snelgrove

125

Enhanced hydrogen storage properties of LiAlH4 catalyzed by CoFe2O4 nanoparticles  

E-Print Network (OSTI)

Enhanced hydrogen storage properties of LiAlH4 catalyzed by CoFe2O4 nanoparticles Ziliang Li The catalytic effects of CoFe2O4 nanoparticles on the hydrogen storage properties of LiAlH4 prepared by ball of advanced hydrogen storage materials for safely storing it at high gravimetric and volumetric densities.4

Volinsky, Alex A.

126

ALS@20  

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

feed-image feed-image Digg: ALSBerkeleyLab Facebook Page: 208064938929 Flickr: advancedlightsource Twitter: ALSBerkeleyLab YouTube: AdvancedLightSource Home About the ALS ALS@20 ALS@20 ALS@20 Kick-Off Celebration Print On Friday, January 11, the Advanced Light Source celebrated the beginning of its 20th anniversary year with a brunch attended by more than 150 current and past staff members. After introductory remarks describing the trials and tribulations encountered during the construction of the ALS from former Director Jay Marx, current ALS Scientific Director Steve Kevan and Director Roger Falcone talked about the progress of the facility over the years. Attendees were then able to view more than 500 historical photos of the ALS and its staff displayed around the room.

127

Low-cost motor drive embedded fault diagnosis systems  

E-Print Network (OSTI)

Electric motors are used widely in industrial manufacturing plants. Bearing faults, insulation faults, and rotor faults are the major causes of electric motor failures. Based on the line current analysis, this dissertation mainly deals with the low...

Akin, Bilal

2009-05-15T23:59:59.000Z

128

A transformer type fault current limiter with spark gap  

Science Journals Connector (OSTI)

A novel fault current limiter (FCL) is proposed in this paper. ... of the capacitor. During the short-circuit faults, the FCL resonantly produces a high impedance in the fault circuit after the breakdown of the s...

Zhang Xiaoqing; Ming Li

2010-06-01T23:59:59.000Z

129

Accurate resistive bridge fault modeling, simulation, and test generation  

E-Print Network (OSTI)

Resistive bridging faults in CMOS combinational circuits are studied in this work. Bridging faults are modeled using HSPICE circuit simulation of the various types of bridging faults that can occur in CMOS combinational circuits. The results...

Sar-Dessai, Vijay Ramesh

2012-06-07T23:59:59.000Z

130

Frostbite Theater - Liquid Nitrogen Experiments - Giant Koosh Ball!  

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

Let's Pour Liquid Nitrogen on the Floor! Let's Pour Liquid Nitrogen on the Floor! Previous Video (Let's Pour Liquid Nitrogen on the Floor!) Frostbite Theater Main Index Next Video (Egg + Liquid Nitrogen + Time-lapse!) Egg + Liquid Nitrogen + Time-lapse! Giant Koosh Ball! Sometimes, you just want to know what's going to happen! [ Show Transcript ] Announcer: Frostbite Theater presents... Cold Cuts! No baloney! Joanna and Steve: Just science! Joanna: Hi! I'm Joanna! Steve: And I'm Steve! A while ago, I was at the mall and I saw this. And, the first thing that popped into my head was 'I wonder what would happen if we were to put this in liquid nitrogen?' Now, that's one thing I really love about science. If you have a question, you can, sometimes, do an experiment to find out what the answer is! Here at the Lab, we have a lot of liquid nitrogen, so that's

131

Development of high efficiency ball-bearing turbocharger  

SciTech Connect

Turbochargers have become very popular on passenger cars since the first mass-produced turbocharged passenger cars were put on market in Japan in 1979. Turbo lag is one of the most serious problem since the first mass-production started. Several new technologies such as a variable geometry turbocharger, ceramic turbocharger, etc. have been introduced to improve acceleration performance. A variable geometry turbocharger changes the area of gas flow passage and increases exhaust gas speed at low engine speed. A ceramic turbocharger reduces inertia moment of a turbine wheel and shaft. Turbocharger mechanical efficiency has equal importance as compressor efficiency and turbine efficiency. This paper describes the test results of ball bearing turbochargers.

Miyashita, K.; Kurasawa, M.; Matsuoka, H.; Ikeya, N.

1987-01-01T23:59:59.000Z

132

Hadron spectroscopy with the crystal ball at the AGS  

Science Journals Connector (OSTI)

The recent installation of the Crystal Ball (CB) on the C6 beamline at the AGS marks the beginning of a new diverse program in hadron spectroscopy at BNL. Some of its goals are to improve the determination of the masses widths and decay modes of several baryon resonances to search for possible exotic states such as pentaquarks and hybrids to determine the ?-n scattering length and to measure photoproduction of K ? mesons from ? and ? hyperons using the technique of detailed balance. In the spring of 1997 we conducted a two week engineering run and a two week data run looking at all neutral final states from ? ? p interactions. A description of the experimental setup and performance of the detector is given along with some preliminary results from ? ? p??n.

B. Tippens; Crystal Ball Collaboration

1998-01-01T23:59:59.000Z

133

Evaluation of faulting characteristics and ground acceleration associated with recent movement along the Meers Fault, Southwestern Oklahoma  

E-Print Network (OSTI)

Recent studies have shown that a 27 km section of the Meers Fault was reactivated during Holocene time. Although these studies have proven the occurrence of recent fault activity, many basic characteristics of the faulting remain unresolved...

Burrell, Richard Dennis

2012-06-07T23:59:59.000Z

134

Off-fault Damage Associated with a Localized Bend in the North Branch San Gabriel Fault, California  

E-Print Network (OSTI)

and microstructural study focused on structural domains before, within, and after the fault bend on both sides of the fault. Subsidiary fault fabrics are similar in all domains outside the bend, which suggests a steady state fracture density and orientation...

Becker, Andrew 1987-

2012-08-15T23:59:59.000Z

135

Investigation of active faulting at the Emigrant Peak fault in Nevada using shallow seismic reflection and ground penetrating radar  

E-Print Network (OSTI)

The objective of this study was to assess fault displacement, off-fault deformation, and alluvial fan stratigraphy at the Emigrant Peak fault zone (EPFZ) in Fish Lake Valley, Nevada utilizing shallow seismic reflection (SSR) and ground penetrating...

Christie, Michael Wayne

2007-12-18T23:59:59.000Z

136

An Assessment of Fault Current Limiter Testing Requirements ...  

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

An Assessment of Fault Current Limiter Testing Requirements An Assessment of Fault Current Limiter Testing Requirements The U.S. Department of Energy's (DOE) Office of Electricity...

137

fault diagnosis of a high voltage transmission line using waveform ...  

E-Print Network (OSTI)

Oct 4, 2013 ... FAULT DIAGNOSIS OF A HIGH VOLTAGE TRANSMISSION LINE USING ... Fault types such as single line to ground, line to line, double line to ...

Ripunjoy Phukan

2013-10-04T23:59:59.000Z

138

Industry @ ALS  

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

Industry @ ALS Industry @ ALS Industry @ ALS Concrete Industry Benefits from Ancient Romans and the ALS Print Thursday, 17 October 2013 14:24 New insights into the Romans' ingenious concrete harbor structures emerging from ALS beamline research could move the modern concrete industry toward its goal of a reduced carbon footprint. Summary Slide Read more... Moving Industry Forward: Finding the Environmental Opportunity in Biochar Print Thursday, 12 September 2013 08:41 Using ALS Beamlines 10.3.2 and 8.3.2, the Environmental Protection Agency (EPA) is currently investigating how biochar sorbs environmental toxins and which kinds of biochar are the most effective. The possibilities for widespread use have already launched entrepreneurial commercial ventures. Summary Slide

139

Development of a bridge fault extractor tool  

E-Print Network (OSTI)

Bhat, B. Tech, Indian Institute of Technology, Bombay Co-Chairs of Advisory Committee: Dr. D. M. H. Walker Dr. Jiang Hu Bridge fault extractors... Bhat, B. Tech, Indian Institute of Technology, Bombay Co-Chairs of Advisory Committee: Dr. D. M. H. Walker Dr. Jiang Hu Bridge fault extractors...

Bhat, Nandan D.

2005-02-17T23:59:59.000Z

140

FaultLocal Distributed Mending (Extended Abstract)  

E-Print Network (OSTI)

As communication networks grow, existing fault handling tools that involve global measures such as global time­outs or reset procedures become increasingly unaffordable, since their cost grows with the size of the network. Rather, for a fault handling mechanism to scale to large networks, its cost must depend only

Kutten, Shay

Note: This page contains sample records for the topic "al fault ball" 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

Physiochemical Evidence of Faulting Processes and Modeling of Fluid in Evolving Fault Systems in Southern California  

SciTech Connect

Our study targets recent (Plio-Pleistocene) faults and young (Tertiary) petroleum fields in southern California. Faults include the Refugio Fault in the Transverse Ranges, the Ellwood Fault in the Santa Barbara Channel, and most recently the Newport- Inglewood in the Los Angeles Basin. Subsurface core and tubing scale samples, outcrop samples, well logs, reservoir properties, pore pressures, fluid compositions, and published structural-seismic sections have been used to characterize the tectonic/diagenetic history of the faults. As part of the effort to understand the diagenetic processes within these fault zones, we have studied analogous processes of rapid carbonate precipitation (scaling) in petroleum reservoir tubing and manmade tunnels. From this, we have identified geochemical signatures in carbonate that characterize rapid CO2 degassing. These data provide constraints for finite element models that predict fluid pressures, multiphase flow patterns, rates and patterns of deformation, subsurface temperatures and heat flow, and geochemistry associated with large fault systems.

Boles, James [Professor

2013-05-24T23:59:59.000Z

142

ALS Visitors  

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

including Ethan Crumlin (at right) about current research in energy storage and battery efficiency. Berkeleyside Editor Lance Knoble toured the ALS and Berkeley Lab with...

143

Intersecting Fault Trends and Crustal-Scale Fluid Pathways Below the Dixie  

Open Energy Info (EERE)

Intersecting Fault Trends and Crustal-Scale Fluid Pathways Below the Dixie Intersecting Fault Trends and Crustal-Scale Fluid Pathways Below the Dixie Valley Geothermal Area, Nevada, Inferred from 3d Magnetotelluric Surveying Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Intersecting Fault Trends and Crustal-Scale Fluid Pathways Below the Dixie Valley Geothermal Area, Nevada, Inferred from 3d Magnetotelluric Surveying Abstract Geothermal systems may occur in zones of structural dilatency which create the crustal plumbing that al-lows concentration of high-temperature fluids from surrounding volumes. While structural orientations of the U.S. Great Basin are dominated visually by the NNE-oriented horst-graben morphology, other alignments are apparent, perhaps principally a NNW-trending grain

144

ALS Visitors  

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

ALS Visitors ALS Visitors ALS Visitors Print Wednesday, 29 July 2009 00:00 ALS staff members host a variety of scientific, educational, government, and community-related tours each month. November 2013 poneman U.S. Deputy Secretary of Energy Daniel Poneman visited Berkeley Lab on Friday, Nov. 15, during a brief stay in the Bay Area. Glenn Mara of the University of California Office of the President and Aundra Richards of the DOE Berkeley Site Office joined Deputy Laboratory Director Horst Simon's welcome. They updated Poneman on the lab's future initiatives and current capital projects and heard briefings on cyber security, computing, and the Joint BioEnergy Institute. As second-in-command at DOE, Poneman is responsible for assisting the Secretary of Energy in the management and operations of the agency and acting on his behalf when necessary.During his tour of the ALS, Poneman (right) spoke with Ken Goldberg (Materials Sciences Division) at the CXRO beamline.

145

Fault-tolerant control for current sensors of doubly fed induction generators based on an improved fault detection method  

Science Journals Connector (OSTI)

Abstract Fault-tolerant control of current sensors is studied in this paper to improve the reliability of a doubly fed induction generator (DFIG). A fault-tolerant control system of current sensors is presented for the DFIG, which consists of a new current observer and an improved current sensor fault detection algorithm. The current observer is constructed by using only voltage signals as inputs. The fault detection algorithm is based on the current observer, in which an adaptive threshold and different fault duration times are considered. The performance of the proposed observer, improved fault detection algorithm, and fault-tolerant control system are investigated by simulation. The results indicate that the outputs of the observer and the sensor are highly coherent. The fault detection algorithm can efficiently detect both soft and hard faults in current sensors, and the fault-tolerant control system can effectively tolerate both types of faults.

H. Li; C. Yang; Y.G. Hu; B. Zhao; M. Zhao; Z. Chen

2014-01-01T23:59:59.000Z

146

Development of a Digital Controller for a Vertical Wind Tunnel (VWT) Prototype to Mitigate Ball Fluctuations  

E-Print Network (OSTI)

The objective of this research was to mitigate fluctuations of a levitated ping pong ball within a vertical wind tunnel (VWT) prototype. This was made possible by remodeling the VWT system with its inherent nonlinear characteristics instead...

Silva, Ramon A.

2011-08-08T23:59:59.000Z

147

The Effects on Soccer Dribbling Skills When Training With Two Different Sized Soccer Balls  

E-Print Network (OSTI)

The purpose of this study was to determine the effects, if any, on soccer dribbling skills in children, ages, 8-10, after practicing with different sized soccer balls during the season. The Kansas Youth Soccer Association ...

Miller, Karen Susanne

2012-05-31T23:59:59.000Z

148

Streaming with Minimum Space: An Algorithm for Covering by Two Congruent Balls  

Science Journals Connector (OSTI)

In this paper we design a simple streaming algorithm for maintaining two smallest balls (of equal radius) in d-dimension to cover a set of points in an on-line fashion. ... such a geometric algorithm is only inve...

Chung Keung Poon; Binhai Zhu

2012-01-01T23:59:59.000Z

149

The Cinderella story of metabolic profiling: does metabolomics get to go to the functional genomics ball?  

Science Journals Connector (OSTI)

...does metabolomics get to go to the functional genomics ball? Julian L Griffin * * ( jlg40@mole.bio...UK To date most global approaches to functional genomics have centred on genomics, transcriptomics and proteomics. However, since...

2006-01-01T23:59:59.000Z

150

Magentic Moment of the +-Resonance via p po Crystal Ball, TAPS collaborations  

E-Print Network (OSTI)

Magentic Moment of the +-Resonance via p po Crystal Ball, TAPS collaborations Introduction Experiment Results Conclusions PhD theses of: B. Boillat, Basel E. Downie, Glasgow S. Schumann, Mainz B

Krusche, Bernd

151

E-Print Network 3.0 - amorphous ball-milled powders Sample Search...  

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

Vols. 2-6 (1999) pp. 375-380. 375 Summary: of Nanoporous Carbon Powders Produced by High Energy Ball Milling and Formation of Carbon Nanotubes During... Procedure Graphite powder...

152

Simulation and optimization of a two-wheeled, ball- flinging robot  

E-Print Network (OSTI)

the robot forward to allow the ball to roll down the armrobot will perform a quick jerking motion to rotate the body attached throwing armthe arm. Section B is to slow down the robot to manipulate

Chen, Po-Ting

2010-01-01T23:59:59.000Z

153

High-Capacity High-Energy Ball Mill for Nanophase Materials  

Science Journals Connector (OSTI)

A high-energy high-capacity ball mill, which can be easily ... scaled-up, for the synthesis of nanophase materials is described. The synthesis of nanophase iron...

Diego Basset; Paolo Matteazzi; Fabio Miani

1994-01-01T23:59:59.000Z

154

QUIZ 2 A ball with mass 2 kg is thrown upward with initial velocity ...  

E-Print Network (OSTI)

A ball with mass 2 kg is thrown upward with initial velocity 100 m/s from the ground. Assume the air resistance is 0.2|v|. For simplicity, just assume that g = 10.

2014-09-24T23:59:59.000Z

155

TRANSIENT PROCESSOR/BUS FAULT TOLERANCE FOR EMBEDDED SYSTEMS  

E-Print Network (OSTI)

TRANSIENT PROCESSOR/BUS FAULT TOLERANCE FOR EMBEDDED SYSTEMS With hybrid redundancy and data the schedule length overhead. Keywords: real-time embedded systems, safety-critical systems, transient faults, ecological, and/or financial disasters) that could result from a fault, these systems must be fault

Girault, Alain

156

Quantification of Priority-OR gates in temporal fault trees  

Science Journals Connector (OSTI)

Fault Tree Analysis has been used in reliability engineering for many decades and has seen various modifications to enable it to analyse fault trees with dynamic and temporal gates so it can incorporate sequential failure in its analysis. Pandora is ... Keywords: Markov chains, Monte Carlo, Pandora, dynamic fault trees, fault trees, safety

Ernest Edifor; Martin Walker; Neil Gordon

2012-09-01T23:59:59.000Z

157

Intelligent fault prediction system based on internet of things  

Science Journals Connector (OSTI)

Fault prediction is the key technology to ensure the safe operation of large equipment. Based on the investigation of current and developing research of fault prediction, an intelligent fault prediction system based on internet of things is proposed ... Keywords: Fault prediction, Intelligent computer information processing, Internet of things, Mechanical equipment groups, Predictive maintenance

Xiaoli Xu; Tao Chen; Mamoru Minami

2012-09-01T23:59:59.000Z

158

2-M Probe At The Needles Area (Kratt, Et Al., 2010) | Open Energy  

Open Energy Info (EERE)

Kratt, Et Al., 2010) Kratt, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At The Needles Area (Kratt, Et Al., 2010) Exploration Activity Details Location The Needles Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes "A new geothermal system was identified from 2m measurements at Emerson Pass on the Pyramid Lake Paiute Reservation in Washoe County, Nevada. This narrow NNW-trending valley contains several faults that appear to transfer dextral strain from NW-striking faults in the northern Walker Lane to N-NNW striking normal faults in the Smoke Creek Desert. The thermal anomaly extends for at least 3 km parallel to the range-front fault that defines the east side of the Emerson Pass valley. A maximum temperature of 35°C

159

ALS Visitors  

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

ALS Visitors Print ALS Visitors Print ALS staff members host a variety of scientific, educational, government, and community-related tours each month. November 2013 poneman U.S. Deputy Secretary of Energy Daniel Poneman visited Berkeley Lab on Friday, Nov. 15, during a brief stay in the Bay Area. Glenn Mara of the University of California Office of the President and Aundra Richards of the DOE Berkeley Site Office joined Deputy Laboratory Director Horst Simon's welcome. They updated Poneman on the lab's future initiatives and current capital projects and heard briefings on cyber security, computing, and the Joint BioEnergy Institute. As second-in-command at DOE, Poneman is responsible for assisting the Secretary of Energy in the management and operations of the agency and acting on his behalf when necessary.During his tour of the ALS, Poneman (right) spoke with Ken Goldberg (Materials Sciences Division) at the CXRO beamline.

160

Al Weinrub  

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

Al Weinrub Al Weinrub Author, "COMMUNITY POWER: Decentralized Renewable Energy in California" Member, Sierra Club California Clean Energy-Climate CommitteeMember, Steering Committee, Bay Area Clean Energy Alliance al.weinrub@comcast.net This speaker was a visiting speaker who delivered a talk or talks on the date(s) shown at the links below. This speaker is not otherwise associated with Lawrence Berkeley National Laboratory, unless specifically identified as a Berkeley Lab staff member. Al Weinrub is a member of the Sierra Club California Energy-Climate Committee and serves on the Steering Committee of the Bay Area's Local Clean Energy Alliance. He is the author of COMMUNITY POWER: Decentralized Renewable Energy in California (http://www.localcleanenergy.org/Community-Power-Publication)

Note: This page contains sample records for the topic "al fault ball" 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

Stacking and twin faults in close-packed crystal structures: exact description of random faulting statistics for the full range of faulting probabilities  

Science Journals Connector (OSTI)

A model of independent random faulting in face-centered-cubic and hexagonal close packing considering single deformation faults or twin faulting is revisited. The approach allows the analysis, within the random model, of the whole range of faulting probabilities. Several descriptions of the underlying faulting process are presented which allows the derivation of different properties of the faulted sequences. The probability of finding two layers of the same type layers apart is derived. It is shown that previous generalizations did not account for mixed terms in the final probability expressions.

Estevez-Rams, E.

2008-08-14T23:59:59.000Z

162

Observations and modeling of shallow fault creep along the San Andreas Fault System  

E-Print Network (OSTI)

refraction survey of the Imperial Valley region, California,earthquake, in The Imperial Valley, California, EarthquakeSlip on faults in the Imperial Valley triggered by the 4

Wei, Meng

2011-01-01T23:59:59.000Z

163

Injection Technologies for Fault Attacks on Microprocessors  

Science Journals Connector (OSTI)

The fault injection technique we will analyze in detail in Sect. 16.3, is the constant under-powering of a computing device. By running the chip with a depleted power supply, the attacker is able to insert transi...

Alessandro Barenghi; Guido M. Bertoni; Luca Breveglieri…

2012-01-01T23:59:59.000Z

164

Supporting fault-tolerant communication in networks  

E-Print Network (OSTI)

We address two problems dealing with fault-tolerant communication in networks. The first one is designing a distributed storage protocol tolerant to Byzantine failure of servers. The protocol implements a multi-writer multi-reader register which...

Kanjani, Khushboo

2009-05-15T23:59:59.000Z

165

Automated Fault Location In Smart Distribution Systems  

E-Print Network (OSTI)

measured at the power substation during a single phase to ground fault clearance [17] .............................................. 111 Figure 26 Analyzed signal using wavelet transform from phase B current during a fault [17..., but are not limited to, substation and feeder relay, intelligent controllers for capacitor bank switches or reclosers, Automatic Meter Reading (AMR) systems installed at the customer sites, power quality meters installed at strategic locations in the system, low...

Lotfifard, Saeed

2012-10-19T23:59:59.000Z

166

Plastic ball and streamer chamber experiments at the Bevalac  

SciTech Connect

Single particle inclusive experiments, and experiments that additionally measure a few correlations like the associated multiplicity, have provided the main contribution to our present understanding of high energy heavy ion collisions. The results from those experiments are in overall agreement with calculations of the cascade and hydrodynamical models. In the cascade model the collision of two nuclei is simulated as a cascade of nucleon-nucleon collisions using measured N-N cross sections. The hydrodynamical model, on the other hand, describes the nuclear collision as that of two fluids and makes use of a nuclear equation of state relating thermal and compressional energy densities to pressure. The pressure field dominates the expansion phase and leads to collective flow of the reaction products in a preferred direction. The observation of such effects in inclusive experiments is not well established. Collective effects that manifest themselves in the shape of the event in phase space are expected to be seen best in the new complete event detectors that measure the final state as exclusively as presently possible by measuring most of the charged particles emitted in the reaction. In addition, those detectors are well suited to test macroscopic concepts such as equilibrium and temperature. Global methods like the sphericity or thrust analysis take into account all the correlations measured in the event and are specially designed to determine the shape of an event in phase space and thus to define a reaction plane. Recent data from the Plastic Ball and the streamer chamber experiments, the first complete event detectors in use at the Bevalac, are presented in this report.

Ritter, H.G.

1982-07-01T23:59:59.000Z

167

ALS Visitors  

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

Quick Facts Quick Facts ALS Visitors Print ALS staff members host a variety of scientific, educational, government, and community-related tours each month. November 2013 poneman U.S. Deputy Secretary of Energy Daniel Poneman visited Berkeley Lab on Friday, Nov. 15, during a brief stay in the Bay Area. Glenn Mara of the University of California Office of the President and Aundra Richards of the DOE Berkeley Site Office joined Deputy Laboratory Director Horst Simon's welcome. They updated Poneman on the lab's future initiatives and current capital projects and heard briefings on cyber security, computing, and the Joint BioEnergy Institute. As second-in-command at DOE, Poneman is responsible for assisting the Secretary of Energy in the management and operations of the agency and acting on his behalf when necessary.During his tour of the ALS, Poneman (right) spoke with Ken Goldberg (Materials Sciences Division) at the CXRO beamline.

168

Active thrust faulting offshore Boumerdes, Algeria, and its relations to the 2003 Mw 6.9 earthquake  

E-Print Network (OSTI)

Active thrust faulting offshore Boumerdes, Algeria, and its relations to the 2003 Mw 6.9 earthquake offshore Boumerdes, Algeria, and its relations to the 2003 Mw 6.9 earthquake, Geophys. Res. Lett., 32, L that strain is distributed over a broad area, from the Atlas front to the offshore margin [Buforn et al., 1995

Déverchère, Jacques

169

Development of a Hydrologic Characterization Technology for Fault Zones Final Report  

E-Print Network (OSTI)

Hydrologic Characterization Technology of Fault Zones, Phaseof Characterization Technology for Fault Zones, LBNL-1635E,Characterization on Technology of Fault Zones – Phase II

Karasaki, Kenzi

2014-01-01T23:59:59.000Z

170

E-Print Network 3.0 - andreas fault zone Sample Search Results  

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

Chester Summary: accommodated along large plate-boundary faults like the San Andreas transform fault in California. These faults... depend in part on the structure of the tabular...

171

E-Print Network 3.0 - active fault zone Sample Search Results  

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

Earth Structure (2nd Edition), 2004 Summary: 292010 Oceanic Transform Faults and Fracture Zones Transform Fault: Active displacement. Fracture Zone: Fossil... fault, no active...

172

E-Print Network 3.0 - automatic fault management Sample Search...  

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

2000 Tutorial on Summary: Management 5. Fault Tolerant Applications 6. Fault Tolerant Hello Server Example 12;Tutorial on Fault... Systems, Inc, 2000 Who Has Control? ...

173

Fault-tolerant control design for trajectory tracking in driver assistance systems  

E-Print Network (OSTI)

-wheel-distributed traction/braking sys- tems was proposed by Ono et al. (2006). A yaw stability control system in whichFault-tolerant control design for trajectory tracking in driver assistance systems Bal´azs N.sename;luc.dugard}@gipsa-lab.grenoble-inp.fr Abstract: The paper proposes a control system with the brake and the steering for developing a driver

Paris-Sud XI, Université de

174

Measuring and Modeling Fault Density for Plume-Fault Encounter Probability Estimation  

SciTech Connect

Emission of carbon dioxide from fossil-fueled power generation stations contributes to global climate change. Storage of this carbon dioxide within the pores of geologic strata (geologic carbon storage) is one approach to mitigating the climate change that would otherwise occur. The large storage volume needed for this mitigation requires injection into brine-filled pore space in reservoir strata overlain by cap rocks. One of the main concerns of storage in such rocks is leakage via faults. In the early stages of site selection, site-specific fault coverages are often not available. This necessitates a method for using available fault data to develop an estimate of the likelihood of injected carbon dioxide encountering and migrating up a fault, primarily due to buoyancy. Fault population statistics provide one of the main inputs to calculate the encounter probability. Previous fault population statistics work is shown to be applicable to areal fault density statistics. This result is applied to a case study in the southern portion of the San Joaquin Basin with the result that the probability of a carbon dioxide plume from a previously planned injection had a 3% chance of encountering a fully seal offsetting fault.

Jordan, P.D.; Oldenburg, C.M.; Nicot, J.-P.

2011-05-15T23:59:59.000Z

175

"giant faults" does not lead to total failure, because the displacement equivalent to the fault  

E-Print Network (OSTI)

"giant faults" does not lead to total failure, because the displacement equivalent to the fault changes in physical properties by cold working seen in Fig. 1 are attributed to this accumulated nanoscale as supporting material on Science Online. 5. T. W. Duerig, A. R. Pelton, in Materials Properties Handbook

Rubloff, Gary W.

176

ALS Reveals New State of Matter  

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

ALS Reveals New State of Matter Print ALS Reveals New State of Matter Print ALS user groups from Princeton and Stanford have been making waves this past year with several high-profile papers and extensive news coverage of their work on a new state of matter embodied by "topological insulators," materials that conduct electricity only on their surfaces. First identified at the ALS in 2007 by a Princeton team led by M. Zahid Hasan, topological insulators have been the subject of intense interest, based on unusual quantum properties that manifest themselves macroscopically. The discovery of a "second generation" of topological insulators that robustly retain these properties well above room temperature has spurred a rising tide of theoretical proposals for potential applications in nanoscale spintronic devices and fault-tolerant quantum computers. In addition, it's also been suggested that topological insulators may serve as a test bed for studies of never-before-seen particles predicted by high-energy physics.

177

ALS Reveals New State of Matter  

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

ALS Reveals New State of Matter Print ALS Reveals New State of Matter Print ALS user groups from Princeton and Stanford have been making waves this past year with several high-profile papers and extensive news coverage of their work on a new state of matter embodied by "topological insulators," materials that conduct electricity only on their surfaces. First identified at the ALS in 2007 by a Princeton team led by M. Zahid Hasan, topological insulators have been the subject of intense interest, based on unusual quantum properties that manifest themselves macroscopically. The discovery of a "second generation" of topological insulators that robustly retain these properties well above room temperature has spurred a rising tide of theoretical proposals for potential applications in nanoscale spintronic devices and fault-tolerant quantum computers. In addition, it's also been suggested that topological insulators may serve as a test bed for studies of never-before-seen particles predicted by high-energy physics.

178

ALS Reveals New State of Matter  

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

ALS Reveals New State of Matter Print ALS Reveals New State of Matter Print ALS user groups from Princeton and Stanford have been making waves this past year with several high-profile papers and extensive news coverage of their work on a new state of matter embodied by "topological insulators," materials that conduct electricity only on their surfaces. First identified at the ALS in 2007 by a Princeton team led by M. Zahid Hasan, topological insulators have been the subject of intense interest, based on unusual quantum properties that manifest themselves macroscopically. The discovery of a "second generation" of topological insulators that robustly retain these properties well above room temperature has spurred a rising tide of theoretical proposals for potential applications in nanoscale spintronic devices and fault-tolerant quantum computers. In addition, it's also been suggested that topological insulators may serve as a test bed for studies of never-before-seen particles predicted by high-energy physics.

179

Multi-Dimensional Stiffness Characteristics of Double Row Angular Contact Ball Bearings and Their Role in Influencing Vibration Modes.  

E-Print Network (OSTI)

?? A new analytical stiffness model for the double row angular contact ball bearings is proposed since the current methods do not provide stiffness matrix… (more)

Gunduz, Aydin

2012-01-01T23:59:59.000Z

180

Stress and fault rock controls on fault zone hydrology, Coso geothermal  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Stress and fault rock controls on fault zone hydrology, Coso geothermal field, CA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Stress and fault rock controls on fault zone hydrology, Coso geothermal field, CA Details Activities (1) Areas (1) Regions (0) Abstract: In crystalline rock of the Coso Geothermal Field, CA, fractures are the primary source of permeability. At reservoir depths, borehole image, temperature, and mud logs indicate fluid flow is concentrated in extensively fractured damage zones of large faults well-oriented for slip.

Note: This page contains sample records for the topic "al fault ball" 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

AL. I  

Office of Legacy Management (LM)

AL. I AL. I Department of Energy Washington, DC 20545 OCT 13 Vii87 Mr. John T. Shields A214 National Fertilizer Development Center Tennessee Valley Authority Muscle Shoals, Alabama 35660 Dear Mr. Shields: As you may know, the Department of Energy (DOE) is evaluating the radiological condition of sites that were utilized under the Manhattan Engineer District and the Atomic Energy Commission (AEC) during the early years of nuclear development to determine whether they need remedial action and whether the Department has authority to perform such action. AEC work at the TVA during the period 1951 through 1955 involved the development of a process to recover uranium from the production of phosphate fertilizer. A laboratory and pilot plant were operated at the site, but very little

182

New Revelation of Lightning Ball Observation and Proposal for a Nuclear Reactor Fusion Experiment  

E-Print Network (OSTI)

In this paper, the author brings further details regarding his Lightning Ball observation that were not mentioned in the first one (Ref.1-2). Additionally, he goes more into detail as the three forces that are necessary to allow the residual crescent form the hydrodynamic vortex ring to shrink into a sphere.Further topics are the similarities and analogies between the Lightning Ball formation's theory and the presently undertaken Tokamak-Stellarator-Spheromak fusion reactor experiments. A new theory and its experimental realisation are proposed as to make the shrinking of the hot plasma of reactors into a ball possible by means of the so called long range electromagnetic forces. In this way,the fusion ignition temperature could possibly atteined.

Tar, Domokos

2009-01-01T23:59:59.000Z

183

Geometry of Cenozoic extensional faulting: Dixie Valley, Nevada | Open  

Open Energy Info (EERE)

Geometry of Cenozoic extensional faulting: Dixie Valley, Nevada Geometry of Cenozoic extensional faulting: Dixie Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Geometry of Cenozoic extensional faulting: Dixie Valley, Nevada Abstract Precise definition of geometric relationships between individual basins and ranges may help to reveal the mechanical processes of Basin and Range Cenozoic extensional faulting at depth. Previous studies have attempted to identify simple horsts and grabens, tilted crustal blocks with planar faulting, or tilted crustal blocks with listric faulting in the shallow crust. Normal faults defining these crustal blocks may root (1) individually in the ductile lower crust, (2) in regional or local low-angle detachment faults, or (3) in igneous intrusions or decoupling surfaces

184

Robust model-based fault diagnosis for chemical process systems  

E-Print Network (OSTI)

diagnosis systems, which use limited information about the process model to robustly detect, discriminate, and reconstruct instrumentation faults. Broadly, the proposed method consists of a novel nonlinear state and parameter estimator coupled with a fault...

Rajaraman, Srinivasan

2006-08-16T23:59:59.000Z

185

New approach to the fault location problem using synchronized sampling  

E-Print Network (OSTI)

This thesis presents a new approach to solving the problem of fault location on a transmission line using synchronized data from both ends of the line. The synchronized phase voltage and current samples taken during the fault transient are used...

Mrkic, Jasna

2012-06-07T23:59:59.000Z

186

A hybrid fault tolerance technique in grid computing system  

Science Journals Connector (OSTI)

In order to achieve high level of reliability and availability, the grid infrastructure should be a foolproof fault tolerant. Fault tolerance plays a key role in order to assert availability and reliability of...

Kalim Qureshi; Fiaz Gul Khan; Paul Manuel; Babar Nazir

2011-04-01T23:59:59.000Z

187

Scalable, Fault-tolerant Management in a Service Oriented Architecture  

E-Print Network (OSTI)

Scalable, Fault-tolerant Management in a Service Oriented Architecture Harshawardhan Gadgil: Scalable, Fault-tolerance, Service Oriented Management, Architecture 1. Introduction With the explosion. The service-oriented architecture provides a simple and flexible framework for building sophisticated

188

Dynamic Inductance in Saturated Cores Fault Current Limiters  

Science Journals Connector (OSTI)

The saturated cores Fault Current Limiter (FCL) is one of the leading ... for providing a commercial robust solution to the fault current problem. Basically, the saturated cores FCL ... its saturated cores state ...

Y. Nikulshin; Y. Wolfus; A. Friedman…

2014-09-01T23:59:59.000Z

189

Modeling and Simulation of Resistive Superconducting Fault-Current Limiters  

Science Journals Connector (OSTI)

Superconducting fault-current limiters (SFCL) offer ideal performance in electrical ... simulation model for a novel resistive type superconducting fault-current limiter is proposed. This model includes the elect...

S. Nemdili; S. Belkhiat

2012-10-01T23:59:59.000Z

190

A Magnetic Shielding Type Superconducting Fault-Current Limiter  

Science Journals Connector (OSTI)

In a Magnetic Shielding type Fault-Current Limiter (MSFCL), the characteristics of the magnetic ... ) is an important factor in limiting the current flow. In this study, to improve the efficiency of the fault current

N. Miyauchi; H. Nakane; S. Haseyama; S. Yoshizawa

1999-01-01T23:59:59.000Z

191

Consequences of Fault Currents Contributed by Distributed Generation  

E-Print Network (OSTI)

Consequences of Fault Currents Contributed by Distributed Generation Intermediate Project Report Currents Contributed by Distributed Generation Intermediate Report for the Project "New Implications in systems with distributed generation. The main concept described is that fault current throughout power

192

IVF: characterizing the vulnerability of microprocessor structures to intermittent faults  

Science Journals Connector (OSTI)

With the advancement of CMOS manufacturing process to nano-scale, future shipped microprocessors will be increasingly vulnerable to intermittent faults. Quantitatively characterizing the vulnerability of microprocessor structures to intermittent faults ...

Songjun Pan; Yu Hu; Xiaowei Li

2010-03-01T23:59:59.000Z

193

Design and analysis of a fault tolerant network processor  

E-Print Network (OSTI)

This thesis investigates the effect of transient faults on a processor and proposes on-chip fault tolerant design techniques to improve its reliability. The target processor is a general 32-bit, four stage pipeline, dual context RISC style design...

Desai, Shaishav A

2012-06-07T23:59:59.000Z

194

Dining philosophers with masking tolerance to crash faults  

E-Print Network (OSTI)

We examine the tolerance of dining philosopher algorithms subject to process crash faults in arbitrary conflict graphs. This classic problem is unsolvable in asynchronous message-passing systems subject to even a single crash fault. By contrast...

Idimadakala, Vijaya K.

2009-05-15T23:59:59.000Z

195

Geographic Information System At Nw Basin & Range Region (Blewitt, Et Al.,  

Open Energy Info (EERE)

2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Nw Basin & Range Region (Blewitt, Et Al., 2003) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes On the regional scale, we investigated the spatial relationship of known geothermal activity with: (1) the regional tendency of Quaternary fault orientations; (2) the direction of extensional strain; and (3) the magnitudoef fault-normal extensional strain. Item (1) is purely a structural analysis based on documented Quatemary faulting. Item (2) is purely an empirical strain-rate analysis, based on GPS station velocity

196

Titania Prepared by Ball Milling: Its Characterization and Application as Liquefied Petroleum Gas Sensor  

E-Print Network (OSTI)

Present paper reports the LPG sensing of TiO2 obtained through ball milling. The milled powder was characterized by XRD, TEM and UV-visible spectroscopy. Further the ball milled powder was compressed in to pellet using hydraulic press. This pellet was investigated with the exposure of LPG. Variations in resistance with exposure of LPG to the sensing pellet were recorded. The sensitivity of the sensor was ~ 11 for 5 vol.% of LPG. Response and recovery times of the sensor were ~ 100 and 250 sec. The sensor was quite sensitive to LPG and results were found reproducible within 91%.

Yadav, B C; Singh, Satyendra; Yadav, T P

2012-01-01T23:59:59.000Z

197

Photovoltaic ground fault and blind spot electrical simulations.  

SciTech Connect

Ground faults in photovoltaic (PV) systems pose a fire and shock hazard. To mitigate these risks, AC-isolated, DC grounded PV systems in the United States use Ground Fault Protection Devices (GFPDs), e.g., fuses, to de-energize the PV system when there is a ground fault. Recently the effectiveness of these protection devices has come under question because multiple fires have started when ground faults went undetected. In order to understand the limitations of fuse-based ground fault protection in PV systems, analytical and numerical simulations of different ground faults were performed. The numerical simulations were conducted with Simulation Program with Integrated Circuit Emphasis (SPICE) using a circuit model of the PV system which included the modules, wiring, switchgear, grounded or ungrounded components, and the inverter. The derivation of the SPICE model and the results of parametric fault current studies are provided with varying array topologies, fuse sizes, and fault impedances. Closed-form analytical approximations for GFPD currents from faults to the grounded current carrying conductor-known as %E2%80%9Cblind spot%E2%80%9D ground faults-are derived to provide greater understanding of the influence of array impedances on fault currents. The behavior of the array during various ground faults is studied for a range of ground fault fuse sizes to determine if reducing the size of the fuse improves ground fault detection sensitivity. The results of the simulations show that reducing the amperage rating of the protective fuse does increase fault current detection sensitivity without increasing the likelihood of nuisance trips to a degree. Unfortunately, this benefit reaches a limit as fuses become smaller and their internal resistance increases to the point of becoming a major element in the fault current circuit.

Flicker, Jack David; Johnson, Jay

2013-06-01T23:59:59.000Z

198

Detachment Faulting & Geothermal Resources- Pearl Hot Spring, NV  

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

Detachment Faulting & Geothermal Resources - Pearl Hot Spring, NV presentation at the April 2013 peer review meeting held in Denver, Colorado.

199

A method for quantitative fault diagnosability analysis of stochastic linear descriptor models  

Science Journals Connector (OSTI)

Analyzing fault diagnosability performance for a given model, before developing a diagnosis algorithm, can be used to answer questions like ''How difficult is it to detect a fault f"i?'' or ''How difficult is it to isolate a fault f"i from a fault f"j?''. ... Keywords: Fault detection and isolation, Fault diagnosability analysis, Model-based diagnosis

Daniel Eriksson; Erik Frisk; Mattias Krysander

2013-06-01T23:59:59.000Z

200

Bridge Fault Simulation Strategies for CMOS Integrated Circuits Brian Chess  

E-Print Network (OSTI)

Bridge Fault Simulation Strategies for CMOS Integrated Circuits Brian Chess Tracy Larrabee \\Lambda the Primitive Bridge Function, a char­ acteristic function describing the behavior of bridged com­ ponents, we present a theorem for detecting feedback bridge faults. We discuss two different methods of bridge fault

Larrabee, Tracy

Note: This page contains sample records for the topic "al fault ball" 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

Stacking fault energy and microstructure effects on torsion texture evolution  

Science Journals Connector (OSTI)

...research-article Stacking fault energy and microstructure effects...2000, , Rosario, Argentina 3 Department of Geology...The stacking fault energy (SFE) of the metal...torsion| Stacking fault energy and microstructure e...CONICET-UNR) 2000, Rosario, Argentina 3Department of Geology...

2000-01-01T23:59:59.000Z

202

Continuity conditions for a fault consisting of obliquely aligned cracks  

E-Print Network (OSTI)

by the ambient stress, and other regions that are open and ¯uid- or air-®lled (e.g. Nagy 1992). The fault may as a ¯uid conduit or a seal depending on the fault zone complexity or microstructural details (Jones & Knipe 1996). Therefore, prediction of the fault seal potential is important. One way to characterize

Cambridge, University of

203

COMPLETE FAULT ANALYSIS FOR LONG TRANSMISSION LINE USING  

E-Print Network (OSTI)

COMPLETE FAULT ANALYSIS FOR LONG TRANSMISSION LINE USING SYNCHRONIZED SAMPLING Nan Zhang Mladen 77843-3128, U.S.A. Abstract: A complete fault analysis scheme for long transmission line represented fault analysis tool for transmission lines is very useful for on-line confirmation and off-line trouble

204

Structure of the eastern Red Rocks and Wind Ridge thrust faults, Wyoming: how a thrust fault gains displacement along strike  

E-Print Network (OSTI)

STRUCTURE OF THE EASTERN RED ROCKS AND WIND RIDGE THRUST FAULTS, WYOMING: HOW A THRUST FAULT GAINS DISPLACEMENT ALONG STRIKE A Thesis by BRENT STANLEY HUNTSMAN Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1983 Major Subject: Geology STRUCTURE OF THE EASTERN RED ROCKS AND WIND RIDGE THRUST FAULTS, WYOMING: HOW A THRUST FAULT GAINS DISPLACEMENT ALONG STRIKE A Thesis by BRENT STANLEY HUNTSMAN...

Huntsman, Brent Stanley

1983-01-01T23:59:59.000Z

205

From mechanical modeling to seismic imaging of faults: A synthetic workflow to study the impact of faults on seismic  

Science Journals Connector (OSTI)

Abstract Although typically interpreted as 2D surfaces, faults are 3D narrow zones of highly and heterogeneously strained rocks, with petrophysical properties differing from the host rock. Here we present a synthetic workflow to evaluate the potential of seismic data for imaging fault structure and properties. The workflow consists of discrete element modeling (DEM) of faulting, empirical relations to modify initial acoustic properties based on volumetric strain, and a ray-based algorithm simulating prestack depth migration (PSDM). We illustrate the application of the workflow in 2D to a 100 m displacement normal fault in a kilometer size sandstone-shale sequence at 1.5 km depth. To explore the effect of particle size on fault evolution, we ran two DEM simulations with particle assemblages of similar bulk mechanical behavior but different particle size, one with coarse (1–3 m particle radii) and the other with fine (0.5–1.5 m particle radii) particles. Both simulations produce realistic but different fault geometries and strain fields, with the finer particle size model displaying narrower fault zones and fault linkage at later stages. Seismic images of these models are highly influenced by illumination direction and wave frequency. Specular illumination highlights flat reflectors outside the fault zone, but fault related diffractions are still observable. Footwall directed illumination produces low amplitude images. Hanging wall directed illumination images the shale layers within the main fault segment and the lateral extent of fault related deformation. Resolution and the accuracy of the reflectors are proportional to wave frequency. Wave frequencies of 20 Hz or more are necessary to image the different fault structure of the coarse and fine models. At 30–40 Hz, there is a direct correlation between seismic amplitude variations and the input acoustic properties after faulting. At these high frequencies, seismic amplitude variations predict both the extent of faulting and the changes in rock properties in the fault zone.

Charlotte Botter; Nestor Cardozo; Stuart Hardy; Isabelle Lecomte; Alejandro Escalona

2014-01-01T23:59:59.000Z

206

Seismoelectric Imaging of a Shallow Fault System Employing Fault Guided Waves  

E-Print Network (OSTI)

Independent sets of reflection seismic and seismoelectric data were collected, processed, and interpreted with the aim of generating and studying guided waves within a fault zone. While seismic surveys have recently been utilized to investigate...

Cohrs, Frelynn Joseph Reese

2012-07-16T23:59:59.000Z

207

Fault-tolerant search of container codes  

Science Journals Connector (OSTI)

This paper describes a method to locate and recognize container code characters. This method is aimed to make more fault-tolerant a system based on tophat transformation, segmentation algorithms, filters and classifiers. Our aim is to be able to find ... Keywords: character recognition, computer vision, segmentation

Juan Rosell; Gabriela Andreu; Alberto Pérez

2006-08-01T23:59:59.000Z

208

Fault-tolerant search of container codes  

Science Journals Connector (OSTI)

This paper describes a method to locate and recognize container code characters. This method is aimed to make more fault-tolerant a system based on tophat transformation, segmentation algorithms, filters and classifiers. Our aim is to be able to find ... Keywords: character recognition, computer vision, segmentation

Juan Rosell; Gabriela Andreu; Alberto Pérez

2006-09-01T23:59:59.000Z

209

Sensor Fault Diagnosis Using Principal Component Analysis  

E-Print Network (OSTI)

and the assumption of white Gaussian noise, the effect of noise on the isolability is studied, and the minimum magnitude of isolable fault in each sensor is found based on the distribution of noise in the measurement system. Next, for the decision process a...

Sharifi, Mahmoudreza

2010-07-14T23:59:59.000Z

210

Adaptive performance support for fault diagnosis  

Science Journals Connector (OSTI)

This paper introduces a strategy, a user model, and a methodology for utilising adaptive hypermedia in performance support domain and specifically for fault diagnosis. This utilisation is implemented by employing task-specific and user-centred hypermedia ... Keywords: adaptive hypermedia, diagnostic expert systems, performance support systems, semantic data modelling, user modelling

Ammar M. Huneiti

2008-07-01T23:59:59.000Z

211

FPGA Interconnect Delay Fault Testing Erik Chmelar  

E-Print Network (OSTI)

A satisfactory FPGA testing method meets several crite- ria. First, the routing resources must be explicitlyFPGA Interconnect Delay Fault Testing Erik Chmelar Center for Reliable Computing Stanford is a scalable manufactur- ing test method for all SRAM-based FPGAs, able to detect multiple interconnect delay

Stanford University

212

Radon emanation on San Andreas Fault  

Science Journals Connector (OSTI)

... RADON is constantly emanated from the Earth into its atmosphere, normally in minute amounts. ... is constantly emanated from the Earth into its atmosphere, normally in minute amounts. Radon emanation is known to be anomalously large on active faults and to show temporal variations ...

Chi-Yu King

1978-02-09T23:59:59.000Z

213

All row, planar fault detection system  

DOE Patents (OSTI)

An apparatus, program product and method for detecting nodal faults may simultaneously cause designated nodes of a cell to communicate with all nodes adjacent to each of the designated nodes. Furthermore, all nodes along the axes of the designated nodes are made to communicate with their adjacent nodes, and the communications are analyzed to determine if a node or connection is faulty.

Archer, Charles Jens; Pinnow, Kurt Walter; Ratterman, Joseph D; Smith, Brian Edward

2013-07-23T23:59:59.000Z

214

Ball-in-Tube Linearization Example Lab 5: Nonlinear Control for a Flexible Joint  

E-Print Network (OSTI)

in this simple case). Of course, the point-mass and lift-coefficient approximations may be overly na-in-tubes experiment. In it, there are four tubes that each have a ball riding in them that is pushed up and down a lift-coefficient hypothesis, assume that the thrust is proportional to the square of the voltage

215

A Finite Element Model for Ice Ball Evolution in a Multi-probe Cryosurgery  

E-Print Network (OSTI)

to intracellular ice injury for fast cooling rates, and solution effects injury for slow cooling rates. BasicallyA Finite Element Model for Ice Ball Evolution in a Multi-probe Cryosurgery RICHARD WANa, *, ZHIHONG October 2002; In final form 8 May 2003) The ice formation in a water body is examined for the computation

Wan, Richard G.

216

BismuthCeramic Nanocomposites with Unusual Thermal Stability via High-Energy Ball Milling**  

E-Print Network (OSTI)

Bismuth±Ceramic Nanocomposites with Unusual Thermal Stability via High-Energy Ball Milling, nanostructured bismuth±ceramic nanocomposites with unusual thermal stabil- ity. These materials contain a high. Important for electrical and thermoelectric applications, the ceramic phase is electrically and thermally

Braun, Paul

217

Modeling of impact dynamics of tennis ball with a flat surface  

E-Print Network (OSTI)

A two-mass model with a spring and a damper in the vertical direction, accounting for vertical translational motion and a torsional spring and a damper connecting the rotational motion of two masses is used to simulate the dynamics of a tennis ball...

Jafri, Syed M.

2005-08-29T23:59:59.000Z

218

The photo-balls and static solutions in NCQED with time attended  

E-Print Network (OSTI)

We drive the potential of photon interaction from Feynman diagrams amplitudes, and we show that the photo-balls, can be produced in noncommutative electrodynamics with time attended but for the static and localized fields, the static solutions (the lumps) can not be exited.

Abolfazl Jafari

2010-11-22T23:59:59.000Z

219

Mawl: Integrated Web and Telephone Service Creation David Atkins, Thomas Ball*  

E-Print Network (OSTI)

Mawl: Integrated Web and Telephone Service Creation David Atkins, Thomas Ball* Thomas Baran in a device- independent manner. PML is a markup language and middleware for controlling and pro- gramming language separates the speci cation of service logic from the speci cation of the user interface

Atkins, David

220

Fire-Balls in Pion Multiple Production: Brasil-Japan Collaboration of Chacaltaya Emulsion Chamber Experiment  

Science Journals Connector (OSTI)

......disc-shaped dense gas of mutually interacting...Fire-Balls zn Pion Multiple Production 3 dose not immediately...mechanism of multiple production of mesons is kept essentially...in comparison to its cost. Already in 1968...events of multiple pion production--into the two types......

Jose A. Chinellato; Carola Dobrigkeit; J. Bellandi Filho; Cesar M. G. Lattes; Marcio J. Menon; Carlos E. Navia O.; Ammiraju Pemmaraju; Kotaro Sawayanagi; Edison H. Shibuya; Armando Turtelli; Jr.; Neuza M. Amato; Naoyuki Arata; F. M. Oliveira Castro; Regina H. C. Maldonado; Hiroshi Aoki; Yoichi Fujimoto; Shunichi Hasegawa; Hiroshi Semba; Masanobu Tamada; Kojiro Tanaka; Seibun Yamashita; Toru Shibata; Kei Yokoi; Hiroshi Kumano; Akinori Ohsawa; Takaaki Tabuki

1983-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "al fault ball" 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

Ball State University Completes Nation's Largest Ground-Source Geothermal System with Support from Recovery Act  

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

As part of the Obama Administration's all-of-the-above approach to American energy, the Energy Department today congratulated Ball State University for its campus-wide ground-source geothermal system, the nation's largest geothermal heating and cooling system.

222

Worcester 1 Inch Solenoid Actuated Gas Operated VPS System Ball Valve  

SciTech Connect

1 inch Gas-operated full-pod ball valve incorporates a solenoid and limit switches as integral park of the actuator. The valve is normally open and fails safe to the closed position. The associated valve position switch is class GS.

MISKA, C.R.

2000-11-13T23:59:59.000Z

223

Active Fault Segments As Potential Earthquake Sources- Inferences From  

Open Energy Info (EERE)

Active Fault Segments As Potential Earthquake Sources- Inferences From Active Fault Segments As Potential Earthquake Sources- Inferences From Integrated Geophysical Mapping Of The Magadi Fault System, Southern Kenya Rift Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Active Fault Segments As Potential Earthquake Sources- Inferences From Integrated Geophysical Mapping Of The Magadi Fault System, Southern Kenya Rift Details Activities (0) Areas (0) Regions (0) Abstract: Southern Kenya Rift has been known as a region of high geodynamic activity expressed by recent volcanism, geothermal activity and high rate of seismicity. The active faults that host these activities have not been investigated to determine their subsurface geometry, faulting intensity and constituents (fluids, sediments) for proper characterization of tectonic

224

Definition: Enhanced Fault Detection Technology | Open Energy Information  

Open Energy Info (EERE)

Technology Technology Jump to: navigation, search Dictionary.png Enhanced Fault Detection Technology Enhanced fault detection technology enables higher precision and greater discrimination of fault location and type with coordinated measurement among multiple devices. For distribution applications, this technology can detect and isolate faults without full-power re-closing, reducing the frequency of through-fault currents. Using high resolution sensors and fault signatures, this technology can better detect high impedance faults. For transmission applications, this technology will employ high speed communications between multiple elements (e.g., stations) to protect entire regions, rather than just single elements. It can also use the latest digital techniques to advance beyond conventional impedance relaying of

225

Upper crustal faulting in an obliquely extending orogen, structural control  

Open Energy Info (EERE)

faulting in an obliquely extending orogen, structural control faulting in an obliquely extending orogen, structural control on permeability and production in the Coso Geothermal Field, eastern California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Upper crustal faulting in an obliquely extending orogen, structural control on permeability and production in the Coso Geothermal Field, eastern California Details Activities (1) Areas (1) Regions (0) Abstract: New multifold seismic reflection data from the Coso geothermal field in the central Coso Range, eastern California, image brittle faults and other structures in a zone of localized crustal extension between two major strike-slip faults. The Coso Wash fault, a Quaternary-active normal fault that is a locus of surface geothermal activity, is well-imaged as a

226

Geometry and development of relay ramps in normal fault systems  

SciTech Connect

Normal fault zones play a major role in the development of basins and in the migration and trapping of hydrocarbons. The mapping of normal fault systems using seismic data requires careful correlation of faults on adjacent sections, a procedure that often leads to the interpretation of faults as having long, continuous, sinuous traces. Recent work involving detailed mapping of fault traces, first by using land exposures but more recently using three-dimensional seismics, has demonstrated that faults are usually made up of many overstepping segments, linked by areas of complex deformation, termed transfer zones or relay ramps. Relay ramps occur between normal fault segments that overstep in map view. The geometry and evolution of exposure-scale relay ramps are described from the Somerset coast, England, and are compared with larger scale ramps from elsewhere. Relay ramps can be classified into four groups based on the degree of interaction and linkage between the overstepping segments; these groups are interpreted as being evolutionary stages. In stage 1, the segments do not interact. Stage 2 involves the reorientation of bedding between two interacting faults to produce a relay ramp. In stage 3, connecting fractures start to break the relay ramp. Stage 4 is when the relay ramp is destroyed to produce a single fault that has an along-strike bend. These evolutionary stages can develop through time, but they can also be seen spatially. A branch line between normal faults or an along-strike bend may represent a stage 4 relay, with progressively earlier stages occurring updip or downdip. Characteristic variability in displacement-distance profiles for fault segments and linked faults accompanies the interaction and linkage processes. Displacement transfer by relay ramps is accompanied by steep displacement gradients along fault segments at oversteps. Relay ramps often contribute to a minimum in total fault displacement at a linkage point. 47 refs., 16 figs.

Peacock, D.C.P. (Univ. of Southampton (United Kingdom) Univ. of Plymouth, Devon (United Kingdom)); Sanderson, D.J. (Univ. of Southampton (United Kingdom))

1994-02-01T23:59:59.000Z

227

Novel 3-Phase Inductive Fault Current Limiter  

Science Journals Connector (OSTI)

The paper describes the inductive three-phase fault current limiter. In this work I examine the novel arrangements of the perfect closed superconducting loop made of HTS wire. I applied one iron core with 3 limbs and special loops for uniform temperature of the superconducting wire. In this work I present the results of my experiments with this device. I present the static and dynamic measured results of this solution. It has got several advantages e. g. fast switching and less fault power for high-power electric machines. The advantage of the equipment is that in the case of single-phase short circuit the current will decrease in all the three phases. This can be an appropriate solution for high power machines. For example, in the case of high-power electric motor if there is a single-phase breaking or a single phase short circuit, we can decrease the current in the three phases.

Janos Kosa

2012-01-01T23:59:59.000Z

228

Morphometric and geometric characterization of normal faults on Mars  

Science Journals Connector (OSTI)

Abstract Using three different approaches (fault plane fitting, 3D crater rim palinspatic restorations and fault scarps morphometric analysis) we investigate the geometry and degradation history of Martian normal faults in two distinct areas. The three independent methods produce similar results, indicating that the average dip angle of the normal faults on these two locations is probably below the value that is usually assumed for Mars (?60°). Our best estimate for this average dip angle is 46.8 ± 9.8 ° , which is a value comparable with the mean dip angle inferred on Earth for seismically active normal faults. This lower average dip angle implies that all the rift strain estimates performed until now might be underestimated. From the comparative analysis of the two faulted regions (Phlegethon Catena and Claritas Fossae), we show that local and regional dip variabilities may exist on Mars. This reinforces the idea that the amount of extension associated with Martian rifts must be reconsidered. We also demonstrate the advantages of performing a comparative morphometric analysis of fault scarps. This approach enables the reconstruction of the faults scarps degradation history and can be used to evaluate how environmental conditions changed through time. After modeling the degradation of the fault scarps at the two sites we conclude that the observed morphometric variations are mainly due to the different faulting ages in an environment characterized by low scarp degradation rates ( 4 × 10 ? 3 m 2 / kyr ) over the last 3 Ga.

David A. Vaz; Mauro G. Spagnuolo; Simone Silvestro

2014-01-01T23:59:59.000Z

229

Calculating the probability of injected carbon dioxide plumes encountering faults  

SciTech Connect

One of the main concerns of storage in saline aquifers is leakage via faults. In the early stages of site selection, site-specific fault coverages are often not available for these aquifers. This necessitates a method using available fault data to estimate the probability of injected carbon dioxide encountering and migrating up a fault. The probability of encounter can be calculated from areal fault density statistics from available data, and carbon dioxide plume dimensions from numerical simulation. Given a number of assumptions, the dimension of the plume perpendicular to a fault times the areal density of faults with offsets greater than some threshold of interest provides probability of the plume encountering such a fault. Application of this result to a previously planned large-scale pilot injection in the southern portion of the San Joaquin Basin yielded a 3% and 7% chance of the plume encountering a fully and half seal offsetting fault, respectively. Subsequently available data indicated a half seal-offsetting fault at a distance from the injection well that implied a 20% probability of encounter for a plume sufficiently large to reach it.

Jordan, P.D.

2011-04-01T23:59:59.000Z

230

Relaxed fault detection and isolation: An application to a nonlinear case study  

Science Journals Connector (OSTI)

Given a number of possibly concurrent faults (and disturbances) that may affect a nonlinear dynamic system, it may not be possible to solve the standard fault detection and isolation (FDI) problem, i.e., to detect and isolate each single fault from all ... Keywords: Fault detection and isolation, Fault sets, Geometric conditions, Nonlinear systems, Robot manipulators

Raffaella Mattone; Alessandro De Luca

2006-01-01T23:59:59.000Z

231

Type E: Extensional Tectonic, Fault-Controlled Resource | Open Energy  

Open Energy Info (EERE)

Type E: Extensional Tectonic, Fault-Controlled Resource Type E: Extensional Tectonic, Fault-Controlled Resource Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Type E: Extensional Tectonic, Fault-Controlled Resource Dictionary.png Type E: Extensional Tectonic, Fault-Controlled Resource: No definition has been provided for this term. Add a Definition Brophy Occurrence Models This classification scheme was developed by Brophy, as reported in Updating the Classification of Geothermal Resources.[1] Type A: Magma-heated, Dry Steam Resource Type B: Andesitic Volcanic Resource Type C: Caldera Resource Type D: Sedimentary-hosted, Volcanic-related Resource Type E: Extensional Tectonic, Fault-Controlled Resource Type F: Oceanic-ridge, Basaltic Resource Extensional-tectonic, fault-controlled resources typically result from a

232

Fault Mapping At Raft River Geothermal Area (1993) | Open Energy  

Open Energy Info (EERE)

Fault Mapping At Raft River Geothermal Area (1993) Fault Mapping At Raft River Geothermal Area (1993) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Fault Mapping At Raft River Geothermal Area (1993) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Fault Mapping Activity Date 1993 Usefulness useful DOE-funding Unknown Exploration Basis Geologic mapping, strain and kinematic analysis Notes The mountains expose a detachment fault that separates a hanging wall of Paleozoic rocks from Proterozoic and Archean rocks of the footwall. Beneath the detachment lies a 100 to 300m-thick top-to-the-east extensional shear zone. Geologic mapping, strain and kinematic analysis, and 40Ar/39Ar thermochronology suggest that the shear zone and detachment fault had an

233

Similarity Matching Techniques for Fault Diagnosis in Automotive Infotainment Electronics  

E-Print Network (OSTI)

Fault diagnosis has become a very important area of research during the last decade due to the advancement of mechanical and electrical systems in industries. The automobile is a crucial field where fault diagnosis is given a special attention. Due to the increasing complexity and newly added features in vehicles, a comprehensive study has to be performed in order to achieve an appropriate diagnosis model. A diagnosis system is capable of identifying the faults of a system by investigating the observable effects (or symptoms). The system categorizes the fault into a diagnosis class and identifies a probable cause based on the supplied fault symptoms. Fault categorization and identification are done using similarity matching techniques. The development of diagnosis classes is done by making use of previous experience, knowledge or information within an application area. The necessary information used may come from several sources of knowledge, such as from system analysis. In this paper similarity matching tec...

Kabir, Mashud

2009-01-01T23:59:59.000Z

234

Active Faulting in the Coso Geothermal Field, Eastern California | Open  

Open Energy Info (EERE)

Faulting in the Coso Geothermal Field, Eastern California Faulting in the Coso Geothermal Field, Eastern California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Active Faulting in the Coso Geothermal Field, Eastern California Details Activities (1) Areas (1) Regions (0) Abstract: New mapping documents a series of late Quaternary NNE-striking normal faults in the central Coso Range that dip northwest, toward and into the main production area of the Coso geothermal field. The faults exhibit geomorphic features characteristic of Holocene activity, and locally are associated with fumaroles and hydothermal alteration. The active faults sole into or terminate against the brittle-ductile transition zone (BDT) at a depth of about 4 to 5 km. The BDT is arched upward over a volume of crust

235

Report on the Discrete Analysis Programme at INI. Keith Ball, Franck Barthe, Ben Green and Assaf Naor  

E-Print Network (OSTI)

Report on the Discrete Analysis Programme at INI. Keith Ball, Franck Barthe, Ben Green and Assaf. The INI decided to experiment with streaming the lectures of the first INI workshop to Paris so

236

Implications of Carbonate Petrology and Geochemistry for the Origin of Coal Balls from the Kalo Formation (Moscovian, Pennsylvanian) of Iowa  

E-Print Network (OSTI)

Coal balls are carbonate concretions formed in peat during the Pennsylvanian and early Permian. Microprobe and microscope analysis reveal that polycrystals of high-Mg calcite (HMC), which are also high in Sr, are the earliest calcium carbonate...

Jones, Courtney

2012-10-19T23:59:59.000Z

237

Structural analysis of arabinoxylans isolated from ball-milled switchgrass biomass  

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

analysis analysis of arabinoxylans isolated from ball-milled switchgrass biomass Koushik Mazumder, William S. York * Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602, USA a r t i c l e i n f o Article history: Received 16 June 2010 Received in revised form 20 July 2010 Accepted 22 July 2010 Available online 30 July 2010 Keywords: Switchgrass Enzymatic digestion Arabinoxylan oligosaccharides Per-O-methylation Multiple-step mass spectrometry Structural analysis a b s t r a c t Ball-milled alcohol-insoluble residue (AIR) was prepared from switchgrass (Panicum virgatum var Alamo) and sequentially extracted with 50 mM ammonium oxalate buffer, 50 mM sodium carbonate, 1 M KOH containing 1% NaBH 4 , and 4 M KOH containing 1% NaBH 4 . Arabinoxylan was the most abundant component of the 1 M KOH-extracted fraction, which was treated with endoxylanase

238

A Ball Lightning Model as a Possible Explanation of Recently Reported Cavity Lights  

SciTech Connect

The salient features of cavity lights, in particular, mobile luminous objects (MLO's), as have been experimentally observed in superconducting accelerator cavities, are summarized. A model based upon standard electromagnetic interactions between a small particle and the 1.5 GHz cavity excitation field is described. This model can explain some features of these data, in particular, the existence of particle orbits without wall contact. While this result is an important success for the model, it is detailed why the model as it stands is incomplete. It is argued that no avenues for a suitable extension of the model through established physics appear evident, which motivates an investigation of a model based upon a more exotic object, ball lightning. As discussed, further motivation derives from the fact that there are significant similarities in many of the qualitative features of ball lightning and MLO's, even though they appear in quite different circumstances and differ in scale by orders of magnitude. The ball lightning model, which incorporates electromagnetic charges and currents, is based on a symmetrized set of Maxwell's equations in which the electromagnetic sources and fields are characterized by a process called dyality rotation. It is shown that a consistent mathematical description of dyality rotation as a physical process can be achieved by adding suitable (phenomenological) current terms to supplement the usual current terms in the symmetrized Maxwell's equations. These currents, which enable the conservation of electric and magnetic charge, are called vacuum currents. It is shown that the proposed ball lightning model offers a good qualitative explanation of the perplexing aspects of the MLO data. Avenues for further study are indicated.

Fryberger, David; /SLAC

2009-08-04T23:59:59.000Z

239

Fault diagnosis and management system for switched reluctance motor drives  

Science Journals Connector (OSTI)

An effective detection and diagnosis of faults is desirable for online condition monitoring, assessment, product quality assurance and improved operational efficiency of Switched Reluctance Motor (SRM) drives. The proposed fault diagnosis and management system uses the measured phase voltages, currents and speed of the motor. In this article, a Matlab/Simulink model-based fault diagnosis system is developed and simulated for SRM drive. The simulation results show that the SRM drive is capable of operating under faulty conditions.

S. Vijayan; S. Paramasivam

2008-01-01T23:59:59.000Z

240

Mechanical properties and fabric of the Punchbowl fault zone, California  

E-Print Network (OSTI)

, and 50 to 125'C, in the presence of pore fluids. The fault zone and surrounding rock consists of (1) the main gouge zone, separated from (2) the undeformed host-rack, by (3) an irregular zone of damaged host-rock. The subsidiary fault fabric... orientations of discrete shear surfaces within the gouge 52 14 Photographs of subsidiary faults within the damaged zone of the Punchbowl Formation. . . . . . 57 15 Photomicrographs showing the progressive increase in deformation of the Punchbowl Formation...

Chester, Frederick Michael

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "al fault ball" 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

Fault Detection and Diagnosis Method for VAV Terminal Units  

E-Print Network (OSTI)

: Air density [kg/m3] NOMENCLATURE REFERENCES 1) IEA Annex 25, Building Optimization and Fault Diagnosis Source Book, Eds. J. Hyvarinen and S. Karki, Technical Research Center of Finland, 1996 2) Harunori Yoshida: Typical Faults of Air Conditioning..., IEA Annex 34 ?Detection and Diagnosis Methods in Real Building?, Eds. A. Dexter and J. Pakanen, Section C.2, pp.143-148, 2001 6) Harunori Yoshida, Sanjay Kumar, Yasunori Morita: Online Fault Detection and Diagnosis in VAV Air Handling Unit by RARX...

Miyata, M.; Yoshida, H.; Asada, M.; Wang, F.; Hashiguchi, S.

2004-01-01T23:59:59.000Z

242

Amikacin pharmacokinetics and the effects of ambient temperature on the dosage regimen in ball pythons (Python reguis)  

E-Print Network (OSTI)

administered intramuscularly in ball pythons and housed at 37'C. (Peak to trough therapeutic range for amikacin is 25 to 2 p. g/ml) 20 Figure 4. Time-elimination curve for amikacin administered intramuscularly (IM) in ball pythons housed at 25'C . 21..., pharmacokinetic studies with exotic species of animals are seldom funded, and animals often are unavailable. This makes the collection of information very difficult. Therapeutic antimicrobial regimens for snakes are important because of the impact of bacterial...

Johnson, James Harvey

2012-06-07T23:59:59.000Z

243

Real-Time Building Energy Modeling, fault Detection and Diagnostic for a DoD Building  

E-Print Network (OSTI)

ME 4343 HVAC Design Real-Time Building Energy Modeling and Fault Detection and Diagnostics for a DoD Building Bing Dong1, Zheng O’Neill2 1 University of Texas, San Antonio, TX, USA 2 University of Alabama, AL, USA The work was done at the United... distributed Direct Digital Control System (DDC) 4 7114 7113 ESL-KT-13-12-18 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 Technology Approaches 5 Core Layer: BIM-based Database BIM to BEM Real-time Data Acquisition...

Dong, B.

2013-01-01T23:59:59.000Z

244

ACTIVE FAULTING AND QUATERNARY SLIP RATES OF THE COLOMBIAN SUB-ANDES  

E-Print Network (OSTI)

at the northern, central and southern segments, with an inferred flat?slab geometry for the Nazca plate (Gutscher et al., 2000). The absence of seismicity 8 above the subducted Carnegie ridge and Mendaña Fault zone, combined with the absence of volcanism (Figures 1a and 2) is... Peruvian Andes display similar deformation styles, mirrored across latitude ~5?S. Although a wide variety of factors such as rheology and mantle dynamics exert control on deformation (e.g. Isacks, 1988), which were not taken into account in this...

Veloza Fajardo, Gabriel Eduardo

2012-12-31T23:59:59.000Z

245

High Temperature Superconducting Fault Current Limiter for Utility Applications  

Science Journals Connector (OSTI)

One of the most near term High Temperature Superconductor (HTS) applications is the Fault Current Limiter (FCL). It is a device that...

E. M. W. Leung; G. W. Albert; M. Dew…

1997-01-01T23:59:59.000Z

246

The northwest extension of the Meers Fault in southwestern Oklahoma  

E-Print Network (OSTI)

unmapped terrace deposits, a trench, and creek banks along an extended N60W trending line in Kiowa County, Oklahoma, strongly suggests that the Meers Fault has an active northwest extension of about 30km which bifurcates in the Sugar Creek area... Fault Study Area The study area covers about 100 square miles and it is located about 20 mi N45W of Lawton, Oklahoma, primarily in Kiowa and Comanche counties (TSN, R14W and R15W) (Figure 7). The Meers Fault is the south-bounding fault of the complex...

Cetin, Hasan

2012-06-07T23:59:59.000Z

247

Active Fault Controls At High-Temperature Geothermal Sites- Prospectin...  

Open Energy Info (EERE)

the level of unrecognized active faults present in these areas. Analysis of low-sun-angle aerial photography acquired over the Needle Rocks, Astor Pass, Empire, and Lee...

248

Controls on Fault-Hosted Fluid Flow: Preliminary Results from...  

Open Energy Info (EERE)

Results from the Coso Geothermal Field, CA Abstract cap rock, permeability, fault, fracture, clay, Coso Authors Davatzes, N.C.; Hickman and S.H. Published Geothermal Resource...

249

High-Resolution Aeromagnetic Survey to Image Shallow Faults,...  

Open Energy Info (EERE)

Valley Geothermal Area Regions (0) Retrieved from "http:en.openei.orgwindex.php?titleHigh-ResolutionAeromagneticSurveytoImageShallowFaults,DixieValleyGeothermalField...

250

Application of machine learning technique in wind turbine fault diagnosis.  

E-Print Network (OSTI)

??In this study, a machine learning technique called anomaly detection is employed for wind turbine bearing fault detection. Basically, the anomaly detection algorithm is used… (more)

Purarjomandlangrudi, Afrooz

2014-01-01T23:59:59.000Z

251

ALS Reveals New State of Matter  

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

ALS Reveals New State of Matter ALS Reveals New State of Matter ALS Reveals New State of Matter Print Wednesday, 13 October 2010 00:00 ALS user groups from Princeton and Stanford have been making waves this past year with several high-profile papers and extensive news coverage of their work on a new state of matter embodied by "topological insulators," materials that conduct electricity only on their surfaces. First identified at the ALS in 2007 by a Princeton team led by M. Zahid Hasan, topological insulators have been the subject of intense interest, based on unusual quantum properties that manifest themselves macroscopically. The discovery of a "second generation" of topological insulators that robustly retain these properties well above room temperature has spurred a rising tide of theoretical proposals for potential applications in nanoscale spintronic devices and fault-tolerant quantum computers. In addition, it's also been suggested that topological insulators may serve as a test bed for studies of never-before-seen particles predicted by high-energy physics.

252

Application of fuzzy SOFM neural network and rough set theory on fault diagnosis for rotating machinery  

Science Journals Connector (OSTI)

This paper presents a new method that applies fuzzy logic, rough set theory and SOFM neural network to rotating machinery fault diagnosis. In this method, firstly, relationships between the fault causations and fault symptoms are established by fuzzy ...

Dongxiang Jiang; Kai Li; Gang Zhao; Jinhui Diao

2005-05-01T23:59:59.000Z

253

Feng shui of supercomputer memory: positional effects in DRAM and SRAM faults  

Science Journals Connector (OSTI)

Several recent publications confirm that faults are common in high-performance computing systems. Therefore, further attention to the faults experienced by such computing systems is warranted. In this paper, we present a study of DRAM and SRAM faults ...

Vilas Sridharan; Jon Stearley; Nathan DeBardeleben; Sean Blanchard; Sudhanva Gurumurthi

2013-11-01T23:59:59.000Z

254

The structure and evolution of small-displacement strike-slip faults in porous sandstone  

E-Print Network (OSTI)

relationship between the progressive addition of subsidiary fault segments (deformation bands) and earlier-formed linkage structures. The along-strike variability and distribution of fault structure are documented and used to assess the role of early fault...

Schafer, Kirk Wyatt

2012-06-07T23:59:59.000Z

255

Research on Fault Diagnosis of Marine Diesel Engine Based on Integrated Similarity  

Science Journals Connector (OSTI)

In order to guarantee the normal operation of marine, an effective fault diagnosis model need to ... to determine the reason causing the fault of marine diesel engine. According to the problem of fault diagnosis ...

Yanyou Chai; Xiuyan Peng; Liufeng Xu; Jiuyu Shi

2011-01-01T23:59:59.000Z

256

Effects of burial history, rock ductility and recovery magnitude on inversion of normal faulted strata  

E-Print Network (OSTI)

reactivation of the normal faults may occur during coaxial contraction even though such faults are unfavorably oriented assuming typical rock friction behavior and a homogeneous stress state. Localized reverse slip on normal faults is favored when strata...

Kuhle, Nathan John

2012-06-07T23:59:59.000Z

257

Fault tolerant control of homopolar magnetic bearings and circular sensor arrays  

E-Print Network (OSTI)

Fault tolerant control can accommodate the component faults in a control system such as sensors, actuators, plants, etc. This dissertation presents two fault tolerant control schemes to accommodate the failures of power amplifiers and sensors in a...

Li, Ming-Hsiu

2006-04-12T23:59:59.000Z

258

Neural Network-Based Classification of Single-Phase Distribution Transformer Fault Data  

E-Print Network (OSTI)

The ultimate goal of this research is to develop an online, non-destructive, incipient fault detection system that is able to detect incipient faults in transformers and other electric equipment before the faults become catastrophic...

Zhang, Xujia

2006-08-16T23:59:59.000Z

259

Curiosity's Fault Tolerant Wakeup and Shutdown Design  

Science Journals Connector (OSTI)

Abstract Curiosity spends roughly 70% of the day “sleeping”, in order to recharge the batteries from the nuclear power source. The system is designed to ensure the Rover goes to sleep and wakes back up to continue science and engineering activities. Additionally, the design is robust to off-nominal situations that may need additional actions performed by both hardware and software to ensure the Rover can communicate with the Earth. This paper describes nominal and off-nominal behavioral patterns, fault tolerance features designed into the Rover system (hardware and software), several off-nominal scenarios that are accommodated by the design, and some lessons learned from this development effort.

Tracy A. Neilson; James A. Donaldson

2014-01-01T23:59:59.000Z

260

Fault current limiters and power switches  

SciTech Connect

Five papers give an overview of the Los Alamos National Lab`s collaboration with private industry and universities in developing High-Temperature Superconductor (HTS) Devices. Highlighted is the lab`s general approach and technical progress towards: design and fabrication of HTS current leads; high gradient magnetic separation for treatment of drinking and waste water; development of coils based on superconductor tape windings; testing of a HTS fault current limiter; and AC loss measuments of multifilament layered HTS conductors. Listed for each of these projects are commercial and university research/development partners along with the proposed projects for FY 1995.

Boenig, H. [Los Alamos National Lab., NM (United States)

1994-07-29T23:59:59.000Z

Note: This page contains sample records for the topic "al fault ball" 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

Improved Hydrogen Storage Performance of MgH2-LiAlH4 Composite by Addition of MnFe2O4  

E-Print Network (OSTI)

Improved Hydrogen Storage Performance of MgH2-LiAlH4 Composite by Addition of MnFe2O4 Qi Wan, Ping storage properties of MgH2-LiAlH4, prepared by ball milling, are studied for the first time. The hydrogen/L) densities are extremely eager for on-board hydrogen storage in fuel cell vehicles according to the U.S. DOE

Volinsky, Alex A.

262

Oxygen as a surfactant for Al contact metallization of organic layers  

SciTech Connect

Valence band and spatially resolved x-ray photoemission studies of the Al growth on sexiphenyl films, in both an ultrahigh vacuum (UHV) and in a partial pressure of oxygen, are reported. We show that in an UHV, even for very high coverages, the Al balls up on the organic film and is discontinuous. In contrast, for growth in an oxygen partial pressure, similar to that in standard high-vacuum systems used in organic device production, very thin continuous conducting wetting layers are formed. We suggest that the oxygen acts like a surfactant that allows the high surface free-energy metal to wet low surface free-energy organic films.

Ivanco, J.; Winter, B.; Netzer, F.P.; Ramsey, M.G.; Gregoratti, L.; Kiskinova, M. [Institut fuer Experimentalphysik, Karl-Franzens-Universitaet, Universitaet Platz 5, A-8010 Graz (Austria); Sincrotrone Trieste, Societa Consoirtile p. Azioni, S.S. 14 km 163.5 in Area Science Park, I-34012 Trieste-Basovizza (Italy)

2004-07-26T23:59:59.000Z

263

ALS Chemistry Lab  

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

ALS Chemistry Lab Print ALS Chemistry Labs The ALS Chemistry Labs are located in the User Support Building (15-130) and in Building 6 (6-2233)*. These spaces are dedicated for...

264

ALS Chemistry Lab  

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

Safety Safety for Users ALS Chemistry Lab Print ALS Chemistry Labs The ALS Chemistry Labs are located in the User Support Building (15-130) and in Building 6 (6-2233)*. These...

265

Fault Analysis at a Wind Power Plant for One Year of Observation: Preprint  

SciTech Connect

This paper analyzes the fault characteristics observed at a wind power plant, and the behavior of the wind power plant under fault events.

Muljadi, E.; Mills, Z.; Foster, R.; Conto, J.; Ellis, A.

2008-07-01T23:59:59.000Z

266

E-Print Network 3.0 - automated fault extraction Sample Search...  

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

with extracted... automation, fault diagnosis, asset management, as well as power system modeling and simulation. 12;... 1 F Voltage Sag Data Utilization for Distribution Fault...

267

Fault Identification in Doubly Fed Induction Generator Using FFT and Neural Networks  

Science Journals Connector (OSTI)

This paper presents a fault identification system for doubly fed induction generator (DFIG). It considers cases of single phase ... with the PP to fault identification in the DFIG.

Marcelo Patrício de Santana…

2012-01-01T23:59:59.000Z

268

Lithological control on the deformation mechanism and the mode of fault slip on the Longitudinal Valley Fault, Taiwan  

E-Print Network (OSTI)

; Chlieh et al., 2008; Harris and Segall, 1987; Hashimoto et al., 2009; Hsu et al., 2009a; Kaneko et al., 2010; Loveless and Meade, 2011; Moreno et al., 2010; Noda and Lapusta, 2010; Perfettini et al., 2010

Avouac, Jean-Philippe

269

Lithological control on the deformation mechanism and the mode of fault slip on the Longitudinal Valley Fault, Taiwan  

E-Print Network (OSTI)

ruptures (e.g., Barbot et al., 2012; Chlieh et al., 2008; Harris and Segall, 1987; Hashimoto et al., 2009; Hsu et al., 2009a; Kaneko et al., 2010; Loveless and Meade, 2011; Moreno et al., 2010; Noda

270

Fault current limiter with shield and adjacent cores  

DOE Patents (OSTI)

In a fault current limiter (FCL) of a saturated core type having at least one coil wound around a high permeability material, a method of suppressing the time derivative of the fault current at the zero current point includes the following step: utilizing an electromagnetic screen or shield around the AC coil to suppress the time derivative current levels during zero current conditions.

Darmann, Francis Anthony; Moriconi, Franco; Hodge, Eoin Patrick

2013-10-22T23:59:59.000Z

271

Creep along the Imperial Fault, southern California, from GPS measurements  

E-Print Network (OSTI)

on a fault. [4] Located southwest of the Salton Sea (Figure 1), the Imperial Valley has experienced numerousCreep along the Imperial Fault, southern California, from GPS measurements Suzanne N. Lyons, Yehuda Positioning System (GPS) 46 geodetic monuments established by Imperial College, London, in a dense grid (half

Sandwell, David T.

272

Fault Tolerant Oxygen Control of a Diesel Engine Air System  

E-Print Network (OSTI)

Fault Tolerant Oxygen Control of a Diesel Engine Air System Rainer Nitsche Matthias Bitzer control problem of a Diesel engine air system having a jammed Exhaust Gas Recirculation (EGR) valve of the air system. Keywords: Fault tolerant control, Diesel engine, Air system, Model-based trajectory

Paris-Sud XI, Université de

273

The faults that move during earthquakes do not always come  

E-Print Network (OSTI)

often live near active faults, because where there is a fault there is usually a water supply. And that means these places become part of major trade routes, like the Silk Roads across Asia from Xi urban building. What is even more frighten- ing is that in many parts of the world poor

Cipolla, Roberto

274

Fault detection and diagnosis capabilities of test sequence selection  

E-Print Network (OSTI)

Review Fault detection and diagnosis capabilities of test sequence selection methods based on the FSM model T Ramalingam*, Anindya Dast and K ThuIasiraman* Different test sequence selection methods resolution in diagnosing the fault. The test sequence selection methods are then compared based on the length

Thulsiraman, Krishnaiyan

275

Observations on the capability of the Criner fault, southern Oklahoma  

E-Print Network (OSTI)

of the Criner fault arises because of its proximity to the Meers fault, which is documented to have been reactivated within the last 1200 years. Such findings contradict the prevailing view that the inner continent of North America is a stable tectonic regime...

Williamson, Shawn Collin

2012-06-07T23:59:59.000Z

276

An investigation of Network Splitting for Fault Level Reduction  

E-Print Network (OSTI)

main methods for fault level reduction namely current limiting reactor, Is-limiter, superconducting term as it is relatively inexpensive and furthermore it has high reliability and flexibility. Modelling in the bus-section. The analysis shows that the fault current is sensitive to closure of the normally open

Watson, Andrew

277

Field Mapping At Walker-Lane Transitional Zone Region (Shevenell, Et Al.,  

Open Energy Info (EERE)

Walker-Lane Transitional Zone Region (Shevenell, Et Al., Walker-Lane Transitional Zone Region (Shevenell, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Walker-Lane Transitional Zone Region (Shevenell, Et Al., 2008) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes On a more local scale, Faulds et al. (2003, 2005a, 2005b, 2006) have conducted structural analysis and detailed geologic mapping at a number of sites throughout Nevada and have found that productive geothermal systems typically occur in one of several structural settings, including step-overs in normal fault zones, near the ends of major normal faults where the

278

Field Mapping At Northern Basin & Range Region (Shevenell, Et Al., 2008) |  

Open Energy Info (EERE)

Northern Basin & Range Region (Shevenell, Et Al., 2008) Northern Basin & Range Region (Shevenell, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Northern Basin & Range Region (Shevenell, Et Al., 2008) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes On a more local scale, Faulds et al. (2003, 2005a, 2005b, 2006) have conducted structural analysis and detailed geologic mapping at a number of sites throughout Nevada and have found that productive geothermal systems typically occur in one of several structural settings, including step-overs in normal fault zones, near the ends of major normal faults where the

279

Dating of major normal fault systems using thermochronology- An example  

Open Energy Info (EERE)

Dating of major normal fault systems using thermochronology- An example Dating of major normal fault systems using thermochronology- An example from the Raft River detachment, Basin and Range, western United States Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Dating of major normal fault systems using thermochronology- An example from the Raft River detachment, Basin and Range, western United States Details Activities (1) Areas (1) Regions (0) Abstract: Application of thermochronological techniques to major normal fault systems can resolve the timing of initiation and duration of extension, rates of motion on detachment faults, timing of ductile mylonite formation and passage of rocks through the crystal-plastic to brittle transition, and multiple events of extensional unroofing. Here we determine

280

Recent earthquake sequences at Coso: Evidence for conjugate faulting and  

Open Energy Info (EERE)

earthquake sequences at Coso: Evidence for conjugate faulting and earthquake sequences at Coso: Evidence for conjugate faulting and stress loading near a geothermal field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Recent earthquake sequences at Coso: Evidence for conjugate faulting and stress loading near a geothermal field Details Activities (1) Areas (1) Regions (0) Abstract: Two recent earthquake sequences near the Coso geothermal field show clear evidence of faulting along conjugate planes. We present results from analyzing an earthquake sequence occurring in 1998 and compare it with a similar sequence that occurred in 1996. The two sequences followed mainshocks that occurred on 27 November 1996 and 6 March 1998. Both mainshocks ruptured approximately colocated regions of the same fault

Note: This page contains sample records for the topic "al fault ball" 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

Definition: Apex or Salient of Normal Fault | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Apex or Salient of Normal Fault Jump to: navigation, search Dictionary.png Apex or Salient of Normal Fault Normal faults may intersect in the subsurface to form a fault apex or salient. Apices or salients of normal faults account for 3% of structural controls in the Great Basin.[2] View on Wikipedia Wikipedia Definition References ↑ James E. Faulds,Nicholas H. Hinz,Mark F. Coolbaugh,Patricia H. Cashman,Christopher Kratt,Gregory Dering,Joel Edwards,Brett Mayhew,Holly McLachlan. 2011. Assessment of Favorable Structural Settings of Geothermal Systems in the Great Basin, Western USA. In: Transactions. GRC Anual Meeting; 2011/10/23; San Diego, CA. Davis, CA: Geothermal Resources Council; p. 777-783

282

Feb. 11, 2008 Advanced Fault Tolerance Solutions for High Performance Computing 1/47 Advanced Fault Tolerance Solutions  

E-Print Network (OSTI)

Feb. 11, 2008 Advanced Fault Tolerance Solutions for High Performance Computing 1/47 RAS RAS Advanced Fault Tolerance Solutions for High Performance Computing Christian Engelmann Oak Ridge National Solutions for High Performance Computing 2/47 · Nation's largest energy laboratory · Nation's largest

Engelmann, Christian

283

Study of nuclei far from stability with AYE-Ball array  

SciTech Connect

The coupling of a Compton-suppressed Ge (CsGe) detector array to a recoil mass separator (RMS) has seen limited use in the past due to the low efficiency for measuring recoil-{gamma} ray coincidences (< 0.1%). With the building of new generation recoil separators and gamma-ray arrays, a substantial increase in detection efficiency has been achieved. This allows for the opportunity to measure excited states in nuclei with cross-sections approaching 100 nb. In this paper, results from the coupling of a modest array of CsGe detectors (AYE-Ball) with a recoil separator (FMA) will be presented.

Carpenter, M.P.

1996-11-01T23:59:59.000Z

284

The experimental determination of the dynamic radial stiffness of an angular contact ball bearing  

E-Print Network (OSTI)

Objectives 1 II LITERATURE REVIEW 3 Analytical Models 3 Experimental Investigations 4 III TEST BEARING 6 RL10 Angular Contact Ball Bearing 6 IV TEST RIG 7 V EXPERIMENTAL SETUP AND PROCEDURES 10 Static Pedestal Pull Tests 10 Static Bearing Pull Tests... components created a natural frequency that was primarily dependent on the test bearing stiffness. 4 5 1 Driver (air turbine) 2 Driver support 3 Coupling 4 Pocket damper seal 5 Rotor wheel 6 RL10 test bearing 7 Shaft 8 Slave bearing 9 Bearing...

Schmidt, Brent Lee

2012-06-07T23:59:59.000Z

285

The effects of lithology and initial fault angle in physical models of fault-propagation folds  

E-Print Network (OSTI)

(1998). . . . 12 10 Principal stress directions within a layer moving through a ramp region of a thrust by Wiltschko (1979). . 14 Potential secondary fault trajectories interpreted from maximum shear stresses in theoretical models by Rodgers... Sandstone Data: Lead Configuration B. . 10 Layer Thickness Measurements ? Clay Configuration A . . . 91 11 Limb Dips: Configuration A Clay Models. . . 113 12 Fold Measurements: Configuration A Clay Models . . . 113 13 Sandstone Data: Clay Configuration...

McLain, Christopher Thomas

2012-06-07T23:59:59.000Z

286

Superconducting Fault Current Limiter for Transmission Voltage  

Science Journals Connector (OSTI)

Within a collaboration of American Superconductor, Siemens, Nexans and Southern California Edison one electrical phase of a resistive superconducting fault current limiter for the 115 kV transmission voltage level has been designed and manufactured. The active part of the limiter consists of 63 bifilar coils made of 12 mm wide steel-stabilized YBCO conductor and is housed in a cryostat operated at 5 bar and 74 K. The first phase was completely assembled and successfully subjected to power switching tests and high voltage tests. The basic design of the system and the test results are reported. The work was funded in part by US-DOE under Contract Number DE-FC26-07NT43243.

Hans-Peter Kraemer; Wolfgang Schmidt; Hong Cai; Bruce Gamble; David Madura; Tim MacDonald; Joe McNamara; Walther Romanosky; Greg Snitchler; Nicolas Lallouet; Frank Schmidt; Syed Ahmed

2012-01-01T23:59:59.000Z

287

Experimental study on characteristics of superconducting fault current limiters connected  

Science Journals Connector (OSTI)

Superconducting fault current limiters (SCFCLs) can reduce fault current; thus SCFCLs allow the capacity of circuit breakers to be reduced and lend flexibility to power system network designs. Furthermore, SCFCLs are expected to improve power system stability, as has been confirmed by some experiments. Therefore, various kinds of SCFCLs were proposed and have been studied. For introducing SCFCLs in power systems, there should be some specifications, such as the impedance, the trigger current level, and the recovery time. Fault analyses pointed out that accuracy of the trigger current level is required. A transformer type SCFCL with an adjustable trigger current level was proposed, designed, made, and tested. Then, limiting tests on three-phase SCFCLs by use of an artificial transmission line with a small generator were carried out. The test results indicated that at phase-to-phase faults, the SCFCLs for the fault phases do not always turn into the limiting mode. From two points of view, it is important to study characteristics of the series connection for SCFCLs: one is as mentioned above, and the other is that a series connection of some SCFCLs of small impedance may be installed in place of an SCFCL of larger impedance. This paper describes the results of limiting tests on two SCFCLs connected in series. The tests were carried out under some different conditions of fault currents, fault phases, and trigger current levels of SCFCLs. Some discussion on characteristics of series connection of SCFCLs appears also.

Hiroyuki Hatta; Tanzo Nitta; Tomomi Oide; Masakuni Chiba; Yasuyuki Shirai; Akihiro Mochida

2004-01-01T23:59:59.000Z

288

Ergodicity in natural earthquake fault networks  

Science Journals Connector (OSTI)

Numerical simulations have shown that certain driven nonlinear systems can be characterized by mean-field statistical properties often associated with ergodic dynamics [C. D. Ferguson, W. Klein, and J. B. Rundle, Phys. Rev. E 60, 1359 (1999); D. Egolf, Science 287, 101 (2000)]. These driven mean-field threshold systems feature long-range interactions and can be treated as equilibriumlike systems with statistically stationary dynamics over long time intervals. Recently the equilibrium property of ergodicity was identified in an earthquake fault system, a natural driven threshold system, by means of the Thirumalai-Mountain (TM) fluctuation metric developed in the study of diffusive systems [K. F. Tiampo, J. B. Rundle, W. Klein, J. S. Sá Martins, and C. D. Ferguson, Phys. Rev. Lett. 91, 238501 (2003)]. We analyze the seismicity of three naturally occurring earthquake fault networks from a variety of tectonic settings in an attempt to investigate the range of applicability of effective ergodicity, using the TM metric and other related statistics. Results suggest that, once variations in the catalog data resulting from technical and network issues are accounted for, all of these natural earthquake systems display stationary periods of metastable equilibrium and effective ergodicity that are disrupted by large events. We conclude that a constant rate of events is an important prerequisite for these periods of punctuated ergodicity and that, while the level of temporal variability in the spatial statistics is the controlling factor in the ergodic behavior of seismic networks, no single statistic is sufficient to ensure quantification of ergodicity. Ergodicity in this application not only requires that the system be stationary for these networks at the applicable spatial and temporal scales, but also implies that they are in a state of metastable equilibrium, one in which the ensemble averages can be substituted for temporal averages in studying their spatiotemporal evolution.

K. F. Tiampo; J. B. Rundle; W. Klein; J. Holliday; J. S. Sá Martins; C. D. Ferguson

2007-06-22T23:59:59.000Z

289

Radiated seismic energy based on dynamic rupture models of faulting and Ralph J. Archuleta1  

E-Print Network (OSTI)

Radiated seismic energy based on dynamic rupture models of faulting Shuo Ma1 and Ralph J. Archuleta energy from three hypothetical crustal events, 30° dipping reverse fault, 60° dipping normal fault, and 0.34 MPa for the reverse, normal, and strike-slip faults, respectively. The energy distribution

Archuleta, Ralph

290

SLIP ALONG THE SAN ANDREAS FAULT ASSOCIATED WITH THE EARTHQUAKE1  

E-Print Network (OSTI)

Imperial Valley earthquake occurred along other than the Imperial fault and the Brawley fault zone. More in the static- strain field that accompanied the earthquake. At about the same time in the 1979 Imperial Valley, similar behavior of the Imperial fault before 1979 suggests that this section ofthe San Andreas fault may

Tai, Yu-Chong

291

On-Line Fault Detection and Compensation of Hydraulic Driven Machines Using Modelling Techniques  

E-Print Network (OSTI)

On-Line Fault Detection and Compensation of Hydraulic Driven Machines Using Modelling Techniques C purpose of hydraulic driven machines as well as for the compensation of incipient faults where applicable: Modelling, Simulation, Hydraulic motors, Fault detection, Fault Compensation 1. Introduction Model

Thawonmas, Ruck

292

Dynamic neural network-based fault diagnosis of gas turbine engines  

Science Journals Connector (OSTI)

In this paper, a neural network-based fault detection and isolation (FDI) scheme is presented to detect and isolate faults in a highly nonlinear dynamics of an aircraft jet engine. Towards this end, dynamic neural networks (DNN) are first developed to ... Keywords: Aircraft jet engine, Bank of filters, Computational intelligence, Dynamic neural networks, Fault detection and isolation, Fault diagnosis, Multiple model schemes

S. Sina Tayarani-Bathaie; Z. N. Sadough Vanini; K. Khorasani

2014-02-01T23:59:59.000Z

293

Improving and Evaluating Differential Fault Analysis on LED with Algebraic Techniques  

E-Print Network (OSTI)

Improving and Evaluating Differential Fault Analysis on LED with Algebraic Techniques Xinjie Zhao.zhang,zshi,chm10010}@engr.uconn.edu Abstract--This paper proposes a fault analysis technique on LED by combining- ential fault analysis (ADFA). In ADFA on LED, we use DFA to deduce the possible fault differences

Shi, Zhijie Jerry

294

In situ measurement of the hydraulic diffusivity of the active Chelungpu Fault, Taiwan  

E-Print Network (OSTI)

.1. Boreholes of the Taiwan Chelungpu-Fault Drilling Project [6] The pair of boreholes used for this experiment shaking in the regions of large slip if the fault was sufficiently sealed. We investigate in situ in situ on an active large-scale fault. Hydraulic tests in deep bore- holes intersecting the Nojima fault

295

Thermal anomalies indicate preferential flow along faults in unconsolidated sedimentary aquifers  

E-Print Network (OSTI)

Thermal anomalies indicate preferential flow along faults in unconsolidated sedimentary aquifers V in unconsolidated siliciclastic aquifers off-set by normal-faults in the Lower Rhine Embayment, Germany. High plane. Most current models of fault hydrology in unconsolidated sedimentary sequences assume faults

Bense, Victor

296

Analysis of the growth of strike-slip faults using effective medium theory  

SciTech Connect

Increases in the dimensions of strike-slip faults including fault length, thickness of fault rock and the surrounding damage zone collectively provide quantitative definition of fault growth and are commonly measured in terms of the maximum fault slip. The field observations indicate that a common mechanism for fault growth in the brittle upper crust is fault lengthening by linkage and coalescence of neighboring fault segments or strands, and fault rock-zone widening into highly fractured inner damage zone via cataclastic deformation. The most important underlying mechanical reason in both cases is prior weakening of the rocks surrounding a fault's core and between neighboring fault segments by faulting-related fractures. In this paper, using field observations together with effective medium models, we analyze the reduction in the effective elastic properties of rock in terms of density of the fault-related brittle fractures and fracture intersection angles controlled primarily by the splay angles. Fracture densities or equivalent fracture spacing values corresponding to the vanishing Young's, shear, and quasi-pure shear moduli were obtained by extrapolation from the calculated range of these parameters. The fracture densities or the equivalent spacing values obtained using this method compare well with the field data measured along scan lines across the faults in the study area. These findings should be helpful for a better understanding of the fracture density/spacing distribution around faults and the transition from discrete fracturing to cataclastic deformation associated with fault growth and the related instabilities.

Aydin, A.; Berryman, J.G.

2009-10-15T23:59:59.000Z

297

Geometry and scaling relations of a population of very small rift-related normal faults  

E-Print Network (OSTI)

normal faults within the Solite Quarry of the Dan River rift basin range in length from a few millimetres AND SCALING RELATIONS The small normal faults are present in quarries of the Virginia Solite Corporation outcrops and quarried boulders (Fig. 2). The fault traces are typically straight, although the fault tips

298

MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN  

Open Energy Info (EERE)

MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN THE COSO GETHERMAL FIELD, CALIFORNIA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: MICRO-SEISMICITY, FAULT STRUCTURE AND HYDRAULIC COMPARTMENTALIZATION WITHIN THE COSO GETHERMAL FIELD, CALIFORNIA Details Activities (1) Areas (1) Regions (0) Abstract: High precision earthquake locations and subsurface velocity structure provide potential insights into fracture system geometry, fluid conduits and fluid compartmentalization critical to geothermal reservoir management. We analyze 16 years of seismicity to improve hypocentral locations and simultaneously invert for the seismic velocity structure within the Coso Geothermal Field (CGF). The CGF has been continuously

299

Visualization of stacking faults in fcc crystals in plastic deformations  

E-Print Network (OSTI)

Using molecular dynamics simulation, we investigate the dynamics of stacking faults in fcc crystals in uniaxial stretching in a Lennard-Jones binary mixture composed of 4096 particles in three dimensions. We visualize stacking faults using a disorder variable $D_j(t)$ for each particle $j$ constructed from local bond order parameters based on spherical harmonics (Steinhardt order parameters). Also introducing a method of bond breakage, we examine how stacking faults are formed and removed by collective particle motions. These processes are relevant in plasticity of fcc crystals.

Takeshi Kawasaki; Akira Onuki

2011-11-27T23:59:59.000Z

300

Superconducting fault current limiter for power utility application  

SciTech Connect

Recent accomplishments in the development of superconducting fault current limiters for power systems are outlined. These accomplishments include the comprehensive requirement for fault current limiters developed by SCE; down-selection; bridge concepts; shunt concepts; and high resistivity matrix substrates for HTS conductors. The proposed Phase II SPI-FCL Program is outlined. It is concluded that the SPI fault current limiter program will benefit both the power utility industry as well as the high temperature superconductivity community and progress of Phase I is right on target.

Leung, E. [Martin Marietta Corp., Oak Ridge, TN (United States)

1994-07-29T23:59:59.000Z

Note: This page contains sample records for the topic "al fault ball" 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

Fault-tree construction and calculations on a microcomputer  

E-Print Network (OSTI)

Figure 17 - Program Overview Screen Figure 18 ? Main Menu Screen Figure 19 ? Invalid Command Screen Figure 20 - First Usage of Disk Screen Figure 21 ? Fault-tree Name Screen Figure 22 - Invalid Fault-tree Name Screen Fi gure 23 ? TOP EVENT Label... to do? Fi gure 19. Inval i d Command Screen 53 CREATE - This command allows the user to build a new fault tree. After a CREATE command is entered, the system wi 1 1 display the screen in Figure 20. This question is asked in order to determine...

Beckmann, Jeffery Linn

1985-01-01T23:59:59.000Z

302

Phase evolution in carbide dispersion strengthened nanostructured copper composite by high energy ball milling  

SciTech Connect

In this study, high-energy ball milling was applied to synthesis in situ nanostructured copper based composite reinforced with metal carbides. Cu, M (M=W or Ti) and graphite powder mixture were mechanically alloyed for various milling time in a planetary ball mill with composition of Cu-20vol%WC and Cu-20vol%TiC. Then the as-milled powder were compacted at 200 to 400 MPa and sintered in a vacuum furnace at 900 Degree-Sign C. The results of X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy analysis showed that formation of tungsten carbides (W{sub 2}C and WC phases) was observed after sintering of Cu-W-C mixture while TiC precipitated in as-milled powder of Cu-Ti-C composite after 5 h and become amorphous with longer milling. Mechanism of MA explained the cold welding and fracturing event during milling. Cu-W-C system shows fracturing event is more dominant at early stage of milling and W particle still existed after milling up to 60 h. While in Cu-Ti-C system, cold welding is more dominant and all Ti particles dissolved into Cu matrix.

Hussain, Zuhailawati; Nur Hawadah, M. S. [School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang (Malaysia)

2012-09-06T23:59:59.000Z

303

Charged Q-balls and boson stars and dynamics of charged test particles  

E-Print Network (OSTI)

We construct electrically charged Q-balls and boson stars in a model with a scalar self-interaction potential resulting from gauge mediated supersymmetry breaking. We discuss the properties of these solutions in detail and emphasize the differences to the uncharged case. We observe that Q-balls can only be constructed up to a maximal value of the charge of the scalar field, while for boson stars the interplay between the attractive gravitational force and the repulsive electromagnetic force determines their behaviour. We find that the vacuum is stable with respect to pair production in the presence of our charged boson stars. We also study the motion of charged, massive test particles in the space-time of boson stars. We find that in contrast to charged black holes the motion of charged test particles in charged boson star space-times is planar, but that the presence of the scalar field plays a crucial role for the qualitative features of the trajectories. Applications of this test particle motion can be made in the study of extreme-mass ratio inspirals (EMRIs) as well as astrophysical plasmas relevant e.g. in the formation of accretion discs and polar jets of compact objects.

Yves Brihaye; Valeria Diemer; Betti Hartmann

2014-02-05T23:59:59.000Z

304

The Portland Hills Fault: uncovering a hidden fault in Portland, Oregon using high-resolution geophysical methods  

Science Journals Connector (OSTI)

The Portland metropolitan area historically is the most seismically active region in Oregon. At least three potentially active faults are located in the immediate vicinity of downtown Portland, with the Portland Hills Fault (PHF) extending directly beneath downtown Portland. The faults are poorly understood, and the surface geologic record does not provide the information required to assess the seismic hazards associated with them. The limited geologic information stems from a surface topography that has not maintained a cumulative geologic record of faulting, in part, due to rapid erosion and deposition from late Pleistocene catastrophic flood events and a possible strike-slip component of the faults. We integrated multiple high-resolution geophysical techniques, including seismic reflection, ground penetrating radar (GPR), and magnetic methods, with regional geological and geophysical surveys to determine that the Portland Hills Fault is presently active with a zone of deformation that extends at least 400 m. The style of deformation is consistent with at least two major earthquakes in the last 12–15 ka, as confirmed by a sidehill excavation trench. High-resolution geophysical methods provide detailed images of the upper 100 m across the active fault zone. The geophysical images are critical to characterizing the structural style within the zone of deformation, and when integrated with a paleoseismic trench, can accurately record the seismic history of a region with little surface geologic exposure.

Lee M. Liberty; Mark A. Hemphill-Haley; Ian P. Madin

2003-01-01T23:59:59.000Z

305

"Give me the Purple Ball" he said to HRP-2 N.14 E. Yoshida, A. Mallet, F. Lamiraux, O. Kanoun, O. Stasse, M. Poirier,  

E-Print Network (OSTI)

"Give me the Purple Ball" ­ he said to HRP-2 N.14 E. Yoshida, A. Mallet, F. Lamiraux, O. Kanoun, O to allow the humanoid robot HRP-2 to understand and execute the order "give me the purple ball, much more critical than for wheeled robots. This paper reports on the current level of robot auton- omy

Lamiraux, Florent

306

Evaluation of a Decoupling-Based Fault Detection and Diagnostic Technique - Part I: Field Emulation Evaluation  

E-Print Network (OSTI)

), evaporator fouling (Evapfoul), liquid-line restriction (Llrestr), low refrigerant charge (Reflow), and refrigerant high charge (Refhigh). Except for refrigerant charge and compressor leakage faults for which five fault levels were introduced, four fault... for these tests. The method could detect low refrigerant charge and loss of compressor performance at the lowest levels introduced and all other faults at the second level. All of the faults could be reliably diagnosed before a 5% degradation in capacity...

Li, H.; Braun, J.

2006-01-01T23:59:59.000Z

307

Recency of Faulting and Neotectonic Framework in the Dixie Valley  

Open Energy Info (EERE)

of Faulting and Neotectonic Framework in the Dixie Valley of Faulting and Neotectonic Framework in the Dixie Valley Geothermal Field and Other Geothermal Fields of the Basin and Range Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Recency of Faulting and Neotectonic Framework in the Dixie Valley Geothermal Field and Other Geothermal Fields of the Basin and Range Abstract We studied the role that earthquake faults play in redistributing stresses within in the earths crust near geothermal fields. The geographic foci of our study were the sites of geothermal plants in Dixie Valley, Beowawe, and Bradys Hot Springs, Nevada. Our initial results show that the past history of earthquakes has redistributed stresses at these 3 sites in a manner to open and maintain fluid pathways critical for geothermal development. The

308

Aksaray And Ecemis Faults - Diapiric Salt Relationships- Relevance To The  

Open Energy Info (EERE)

Aksaray And Ecemis Faults - Diapiric Salt Relationships- Relevance To The Aksaray And Ecemis Faults - Diapiric Salt Relationships- Relevance To The Hydrocarbon Exploration In The Tuz Golu (Salt Lake) Basin, Central Anatolia, Turkey Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Aksaray And Ecemis Faults - Diapiric Salt Relationships- Relevance To The Hydrocarbon Exploration In The Tuz Golu (Salt Lake) Basin, Central Anatolia, Turkey Details Activities (0) Areas (0) Regions (0) Abstract: Due to activitiy of the Aksaray and Ecemis Faults, volcanic intrusion and westward movement of the Anatolian plate, diapiric salt structures were occurred in the Tuz Golu (Salt Lake) basin in central Anatolia, Turkey. With the collisions of the Arabian and Anatolian plates during the late Cretaceous and Miocene times, prominent ophiolitic

309

Recency Of Faulting And Neotechtonic Framework In The Dixie Valley  

Open Energy Info (EERE)

Of Faulting And Neotechtonic Framework In The Dixie Valley Of Faulting And Neotechtonic Framework In The Dixie Valley Geothermal Field And Other Geothermal Fields Of The Basin And Range Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Recency Of Faulting And Neotechtonic Framework In The Dixie Valley Geothermal Field And Other Geothermal Fields Of The Basin And Range Details Activities (6) Areas (3) Regions (0) Abstract: We studied the role that earthquake faults play in redistributing stresses within in the earths crust near geothermal fields. The geographic foci of our study were the sites of geothermal plants in Dixie Valley, Beowawe, and Bradys Hot Springs, Nevada. Our initial results show that the past history of earthquakes has redistributed stresses at these 3 sites in a manner to open and maintain fluid pathways critical for geothermal

310

Understanding Fault Characteristics And Sediment Depth For Geothermal  

Open Energy Info (EERE)

Understanding Fault Characteristics And Sediment Depth For Geothermal Understanding Fault Characteristics And Sediment Depth For Geothermal Exploration Using 3D Gravity Inversion In Walker Valley, Nevada Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Understanding Fault Characteristics And Sediment Depth For Geothermal Exploration Using 3D Gravity Inversion In Walker Valley, Nevada Details Activities (2) Areas (1) Regions (0) Abstract: The Southern Walker Lake Basin, situated in the Walker Lake structural domain, consists of primarily E-W directed extension along N-NNW striking normal faults. Water well drilling on the eastern slopes of the Wassuk Range, west of the city of Hawthorne, Nevada showed elevated temperatures. Two recent drill holes reaching downhole depths of more than 4000 ft give some insight to the geologic picture, but more information

311

Geophysical investigation of concealed faults near Yucca Mountain, southwest Nevada  

SciTech Connect

Detailed gravity and ground magnetic data collected along surveyed traverses across Midway Valley, on the eastern flank of Yucca Mountain, Nevada reveal that these methods can be used to delineate concealed faults. These studies are part of an effort to evaluate faulting in the vicinity of the proposed surface facilities for a potential nuclear waste repository at Yucca Mountain. The largest gravity and magnetic anomaly in the vicinity of Midway Valley is associated with the Paintbrush fault on the west flank of Alice Ridge. Geophysical data infer a vertical offset of about 200 m (650 ft). Another prominent gravity and magnetic anomaly is associated with the Bow Ridge fault in the western part of Midway Valley.

Ponce, D.A. [Geological Survey, Menlo Park, CA (United States)

1993-12-31T23:59:59.000Z

312

Unknown Input Observers and Fault Tolerant Control Allocation Andrea Cristofaro  

E-Print Network (OSTI)

objectives [3] [13] [17] , such as power or fuel consumption minimization. On the other hand, usually in order to make relevant faults observable. The case study of an overactuated marine vessel supports

Johansen, Tor Arne

313

CAPRI: A Common Architecture for Distributed Probabilistic Internet Fault Diagnosis  

E-Print Network (OSTI)

This thesis presents a new approach to root cause localization and fault diagnosis in the Internet based on a Common Architecture for Probabilistic Reasoning in the Internet (CAPRI) in which distributed, heterogeneous ...

Lee, George J.

2007-06-04T23:59:59.000Z

314

CAPRI : a common architecture for distributed probabilistic Internet fault diagnosis  

E-Print Network (OSTI)

This thesis presents a new approach to root cause localization and fault diagnosis in the Internet based on a Common Architecture for Probabilistic Reasoning in the Internet (CAPRI) in which distributed, heterogeneous ...

Lee, George J. (George Janbing), 1979-

2007-01-01T23:59:59.000Z

315

Fault current limiter based on triggered vacuum switch  

Science Journals Connector (OSTI)

A new type of fault current limiter (FCL) based on triggered vacuum switch ... is mainly composed of a capacitor, a current-limiting reactor connected with a capacitor in ... behaves as a conventional series comp...

Jing Shi; Ji-yan Zou; Jun-jia He…

2000-12-01T23:59:59.000Z

316

Coil and HTS Development for Fault Current Limiters  

Science Journals Connector (OSTI)

Fault current limiters are being developed to limit peak currents in transmission and distribution systems. The authors ... and a coil configuration specifically for high transient currents and the resulting high...

B. Gamble; G. Snitchler; M. Manlief…

1997-01-01T23:59:59.000Z

317

Melt-processed YBCO for a Fault Current Limiter  

Science Journals Connector (OSTI)

Bulk High-Tc...-Superconductors (HTSC) offer applications in the field of fault current limiters in power networks: Current limitation can be accomplished by means of ... with a primary winding carrying the power...

H. Kanbach; E. Bochenek; M. Trautmann; R. Fischer…

1994-01-01T23:59:59.000Z

318

Understanding Fault Characteristics And Sediment Depth For Geothermal...  

Open Energy Info (EERE)

Fault Characteristics And Sediment Depth For Geothermal Exploration Using 3D Gravity Inversion In Walker Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to...

319

Characteristics of Wind Turbines Under Normal and Fault Conditions: Preprint  

SciTech Connect

This paper investigates the characteristics of a variable-speed wind turbine connected to a stiff or weak grid under normal and fault conditions and the role of reactive power compensation.

Muljadi, E.; Butterfield, C. P.; Parsons, B.; Ellis, A.

2007-02-01T23:59:59.000Z

320

Lossless fault-tolerant data structures with additive overhead  

E-Print Network (OSTI)

We develop the first dynamic data structures that tolerate ? memory faults, lose no data, and incur only an O(? ) additive overhead in overall space and time per operation. We obtain such data structures for arrays, linked ...

Christiano, Paul F.

Note: This page contains sample records for the topic "al fault ball" 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

8 - Superconducting fault current limiters and power cables  

Science Journals Connector (OSTI)

Abstract: This chapter addresses the technology of superconducting power cables and superconducting fault current limiters. The first part of the chapter is a general summary of the electric power grid. This sets the stage for a discussion of the historical development of superconducting AC and DC cables, which begins with low temperature superconductor-based systems. It then describes the present state of superconducting cable technology and gives a summary of some of the major programs around the world. Whereas power cables may be thought of as a replacement for conventional power system components, fault current limiters and fault current controllers have no conventional equivalent in the power grid. Several conceptually different fault current limiter designs are described. Their state of development and installation on the power grid are described.

W. Hassenzahl

2012-01-01T23:59:59.000Z

322

Performance analysis of fault-tolerant nanoelectronic memories  

E-Print Network (OSTI)

important that defect and fault-tolerant schemes be incorporated into the design of nanotechnology related devices. In this dissertation, we focus on the study of a novel and promising class of computer chip memories called crossbar molecular switch memories...

Coker, Ayodeji

2009-05-15T23:59:59.000Z

323

Detecting and Tolerating Byzantine Faults in Database Systems  

E-Print Network (OSTI)

This thesis describes the design, implementation, and evaluation of a replication scheme to handle Byzantine faults in transaction processing database systems. The scheme compares answers from queries and updates on multiple ...

Vandiver, Benjamin Mead

2008-06-30T23:59:59.000Z

324

Detecting and tolerating Byzantine faults in database systems  

E-Print Network (OSTI)

This thesis describes the design, implementation, and evaluation of a replication scheme to handle Byzantine faults in transaction processing database systems. The scheme compares answers from queries and updates on multiple ...

Vandiver, Benjamin Mead, 1978-

2008-01-01T23:59:59.000Z

325

A fault detection service for wide area distributed computations.  

SciTech Connect

The potential for faults in distributed computing systems is a significant complicating factor for application developers. While a variety of techniques exist for detecting and correcting faults, the implementation of these techniques in a particular context can be difficult. Hence, we propose a fault detection service designed to be incorporated, in a modular fashion, into distributed computing systems, tools, or applications. This service uses well-known techniques based on unreliable fault detectors to detect and report component failure, while allowing the user to tradeoff timeliness of reporting against false positive rates. We describe the architecture of this service, report on experimental results that quantify its cost and accuracy, and describe its use in two applications, monitoring the status of system components of the GUSTO computational grid testbed and as part of the NetSolve network-enabled numerical solver.

Stelling, P.

1998-06-09T23:59:59.000Z

326

A Fault Detection and Diagnosis Method for HVAC Systems  

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

A Fault Detection and Diagnosis Method for HVAC Systems A Fault Detection and Diagnosis Method for HVAC Systems Speaker(s): Peng Xu Date: December 2, 2002 - 12:00pm Location: Bldg. 90 There is a growing consensus that most buildings do not perform as well as intended and that faults in HVAC systems are widespread in commercial buildings. An automated fault detection and diagnosis tool for HVAC systems is being developed, based on an integrated, life-cycle, approach to commissioning and performance monitoring. The tool uses component-level HVAC equipment models implemented in the SPARK equation-based simulation environment. The models are configured using design information and component manufacturers' data and then fine-tuned to match the actual performance of the equipment by using data measured during functional tests

327

Fault Mapping At Coso Geothermal Area (1980) | Open Energy Information  

Open Energy Info (EERE)

Fault Mapping At Coso Geothermal Area (1980) Fault Mapping At Coso Geothermal Area (1980) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Fault Mapping At Coso Geothermal Area (1980) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Fault Mapping Activity Date 1980 Usefulness useful DOE-funding Unknown Exploration Basis To determine the Late Cenozoic volcanism, geochronology, and structure of the Coso Range Notes This system apparently is heated by a reservoir of silicic magma at greater than or equal to 8-km depth, itself produced and sustained through partial melting of crustal rocks by thermal energy contained in mantle-derived basaltic magma that intrudes the crust in repsonse to lithospheric extension. References Duffield, W.A.; Bacon, C.R.; Dalrymple, G.B. (10 May 1980) Late

328

ALS Chemistry Lab  

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

Chemistry Lab Print ALS Chemistry Labs The ALS Chemistry Labs are located in the User Support Building (15-130) and in Building 6 (6-2233)*. These spaces are dedicated for...

329

Fault simulation of combinational circuits based on critical path tracing  

E-Print Network (OSTI)

FAULT SIMULATION Ol' COMBINATIONAI, CIRCUITS BASED ON CRITICAL PATH TRACING A Thesis by CHARLES JAMES BURNETT Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 1992 Major Subject: Electrical Engineering FAULT SIIUIULATION OF COMBINATlONAL CIRCUITS BASED ON CRITICAL PATH TRACINC A Thesis CHARLES JAMES BURNETT Approved as to style and content by: Don E. Ross (Chair of Committee...

Burnett, Charles James

1992-01-01T23:59:59.000Z

330

Neural net application to transmission line fault detection and classification  

E-Print Network (OSTI)

NEURAL NET APPLICATION TO TRANSMISSION LINE FAULT DETECTION AND CLASSIFICATION A Thesis by IGOR RIKALO Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approve as to style... Applicanon to Transmission Line Fault Detection and Classification. (December 1994) Igor Rikalo, B. S. University of Sarajevo Chair of Advisory Committee: Dr. Mladen Kezunovic Today, in electric power systems, a large amount of data is made readily...

Rikalo, Igor

2012-06-07T23:59:59.000Z

331

A dc superconducting fault current limiter using die-pressed  

Science Journals Connector (OSTI)

A model of a superconducting fault current limiter on a polycrystalline high-temperature superconductor basis is checked in the dc short circuit regime. Protection of load takes place under the conditions described in this paper. The use of ceramic materials with superconducting-normal metal-superconducting Josephson junction network having an S-type current-voltage characteristic (CVC) is shown to be effective for fault current limiter devices.

A G Mamalis; M I Petrov; D A Balaev; K A; D M Gohfeld; S V Militsyn; S G; V I Kirko; I N Vottea

2001-01-01T23:59:59.000Z

332

The application of satellite time references to HVDC fault location  

SciTech Connect

An HVdc fault location scheme is described which relies on very precise detection of the time of arrival of fault created surges at both ends of the line. Such detection is achieved by a very accurate data acquisition and processing system combined with the time reference signals provided by a global positioning system receiver. Extensive digital simulation is carried out to determine the voltage and current waveforms, to identify the main sources of error and suggest possible compensation techniques.

Dewe, M.B.; Sankar, S.; Arrillaga, J. (Univ. of Canterbury, Christchurch (New Zealand))

1993-07-01T23:59:59.000Z

333

Limiting characteristics of the superconducting fault current limiter applied to the neutral line of conventional transformer  

Science Journals Connector (OSTI)

Abstract The increased electricity demands influenced by the recent industrial development make the electric power distribution system more comprehensive, and the risks are high to cause failures to steady state electric line due to the extended range of fault at the time of fault occurrence. Also, the high performance and the high precision electric appliances that sensitive to switching surge and fault current expose vulnerability of reduced life span and increased fault occurrence ratio. Therefore, this thesis analyzed the fault limiting characteristics by the fault types by applying the superconducting fault current limiter to the neutral line of the transformer in order to reduce the fault currents that flow such high performance appliances. A current transformer (CT) that detects the fault current in the simulated power distribution system, a switching control system that is self-developed and a transformer are used in constructing a circuit. When a fault occurs, the initial fault current is restricted by the superconducting fault current limiter and simultaneously detours the fault current by operating the SCR contact of the switching control system through the detection by CT. This thesis analyzed the limiting characteristics of the superconducting fault current limiter that are applied to the neutral line of the transformer by the fault types.

I.G. Im; H.S. Choi; B.I. Jung

2013-01-01T23:59:59.000Z

334

Fault Current Limit (FCL) Technology (Magnetic Valve Controlled Reactor-Type Fault Current Limiter Principle and Simulation)  

Science Journals Connector (OSTI)

Summarized the FCL practical research which faces to the key technical problems, briefly introduces the study of magnetic valve controllable reactor type fault current limiter principle, and the simulation result...

Chunzhe Shi

2012-01-01T23:59:59.000Z

335

All donations can be delivered to Jaime Ball, Director of Guest Relations & Volunteer Services, at 707 North Broadway, Baltimore, MD 21205. For more information and to make deliver arrangements,  

E-Print Network (OSTI)

Wish List All donations can be delivered to Jaime Ball, Director of Guest Relations & Volunteer; riding, push & pull toys, ball popper, tractors, trucks & cars, farm animals, dolls (all plastic body doodle, Boppy, Nerf balls, play jewelry Electronics (for therapy and programs) Batteries; Music: CD

Pevsner, Jonathan

336

Influence of fault type on the optimal location of superconducting fault current limiter in electrical power grid  

Science Journals Connector (OSTI)

Abstract This paper presents a novel approach to determine the optimal location of a resistive superconducting fault current limiter (SFCL) to improve the transient stability of an electric power grid (EPG). The presented method use the angular separation of the rotors of synchronous machines present in the power system to select the optimal location of SFCL. The selection of this optimal location is coordinated with the corresponding optimal resistive value to improve transient stability in case of short-circuit fault. To obtain a global study on the optimal placement of SFCL in case of fault, various types of short-circuits are considered (single phase grounded fault, two phases grounded fault, etc.). To evaluate the effectiveness of the proposed method, the IEEE benchmarked four-machine two-area test system is used to carry out several case studies. It is shown that the optimal location of SFCL as well as its optimal resistance value are not the same for each fault studied. A global analysis of EPG stability is presented in the paper to select only one location of the SFCL in the EPG. Results show that the optimal location of SFCL combined with its optimal resistive value reduces the angular separation of the rotors that improves effectively the stability of the EPG for any type of short-circuit.

G. Didier; J. Lévêque

2014-01-01T23:59:59.000Z

337

Microsoft PowerPoint - BaroBallTechBriefp1.ppt  

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

BaroBall BaroBall Control Valve with Volume Flow Measurement at a glance  low-cost alternative treatment technique  simple design  easy to install  easy to maintain  U.S. patent 5,641,245  U.S. patent 6,425,298  Canadian patent 2,221,770 Wells screened in the unsaturated zone have been observed to inhale ambient air and exhale soil gas. These natural air flows in wells are determined by barometric pressure fluctuations, permeability of the subsurface, and depth of the well screen. The difference between surface and subsurface pressures is the driving force for these flows. The BaroBall control valve uses a ping-pong ball to provide low cracking pressure for outflow and to seal the well during inflow. When atmospheric pressure is higher than the pressure

338

Mini ball grid array (mBGA) assembly on MCM-L boards  

SciTech Connect

Sandia National Laboratories has developed a chip scale packaging technology called mini Ball Grid Array (mBGA). The mBGA is a flip chip die, obtained by redistributing peripheral pads in existing dies to an area array of pads 10 mils or larger in diameter with a minimum pitch of 20 mils. The peripheral pads are redistributed to area array pads using two polyimide dielectric and two metal conductor layers. mBGA can be closely tiled together on a substrate to yield a very high circuit density. In an earlier report, the authors presented the results on the reliability and thermal performance of mBGA on silicon and ceramic substrates. In this report, they present an mBGA cost analysis, improvements in the mBGA bump adhesion, and reliability and thermal performance of mBGA assemblies on FR-4 boards.

Chanchani, R.; Treece, K.; Dressendorfer, P.

1997-02-01T23:59:59.000Z

339

Vibrant fault diagnosis for hydroelectric generator units with a new combination of rough sets and support vector machine  

Science Journals Connector (OSTI)

The fault diagnosis for hydroelectric generator unit (HGU) is significant to prevent dangerous accidents from occurring and to improve economic efficiency. The faults of HGU involve overlapping fault patterns which may denote a kind of faults in the ... Keywords: Fault diagnosis, Hydroelectric generator unit, Rough sets, Support vector machine

Xiaoyuan Zhang; Jianzhong Zhou; Jun Guo; Qiang Zou; Zhiwei Huang

2012-02-01T23:59:59.000Z

340

Provenance evidence for major post–early Pennsylvanian dextral slip on the Picuris-Pecos fault, northern New Mexico  

Science Journals Connector (OSTI)

...Pf-Pajarito fault, GMf-Glorieta Mesa fault, SdCff-Sangre de Cristo frontal...TCf-Tijeras-Canoncito fault, Cf-Chupadera fault, Tf-Tecolote fault, SHf-Sand...2009, Tectonics of the Chupadera Mesa region, central New Mexico: New...

Steven M. Cather; Adam S. Read; Nelia W. Dunbar; Barry S. Kues; Karl Krainer; Spencer G. Lucas; Shari A. Kelley

Note: This page contains sample records for the topic "al fault ball" 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

Performance improvement of silicon nitride ball bearings by ion implantation. CRADA final report  

SciTech Connect

The present report summarizes technical results of CRADA No. ORNL 92-128 with the Pratt and Whitney Division of United Technologies Corporation. The stated purpose of the program was to assess the 3effect of ion implantation on the rolling contact performance of engineering silicon nitride bearings, to determine by post-test analyses of the bearings the reasons for improved or reduced performance and the mechanisms of failure, if applicable, and to relate the overall results to basic property changes including but not limited to swelling, hardness, modulus, micromechanical properties, and surface morphology. Forty-two control samples were tested to an intended runout period of 60 h. It was possible to supply only six balls for ion implantation, but an extended test period goal of 150 h was used. The balls were implanted with C-ions at 150 keV to a fluence of 1.1 {times} 10{sup 17}/cm{sup 2}. The collection of samples had pre-existing defects called C-cracks in the surfaces. As a result, seven of the control samples had severe spalls before reaching the goal of 60 h for an unacceptable failure rate of 0.003/sample-h. None of the ion-implanted samples experienced engineering failure in 150 h of testing. Analytical techniques have been used to characterize ion implantation results, to characterize wear tracks, and to characterize microstructure and impurity content. In possible relation to C-cracks. It is encouraging that ion implantation can mitigate the C-crack failure mode. However, the practical implications are compromised by the fact that bearings with C-cracks would, in no case, be acceptable in engineering practice, as this type of defect was not anticipated when the program was designed. The most important reason for the use of ceramic bearings is energy efficiency.

Williams, J.M. [Oak Ridge National Lab., TN (United States); Miner, J. [United Technologies Corp., West Palm Beach, FL (United States). Pratt and Whitney Div.

1998-03-01T23:59:59.000Z

342

Characterizing fault-plume intersection probability for geologic carbon sequestration risk assessment  

SciTech Connect

Leakage of CO{sub 2} out of the designated storage region via faults is a widely recognized concern for geologic carbon sequestration. The probability of such leakage can be separated into the probability of a plume encountering a fault and the probability of flow along such a fault. In the absence of deterministic fault location information, the first probability can be calculated from regional fault population statistics and modeling of the plume shape and size. In this study, fault statistical parameters were measured or estimated for WESTCARB's Phase III pilot test injection in the San Joaquin Valley, California. Combining CO{sub 2} plume model predictions with estimated fault characteristics resulted in a 3% probability that the CO{sub 2} plume will encounter a fault fully offsetting the 180 m (590 ft) thick seal. The probability of leakage is lower, likely much lower, as faults with this offset are probably low-permeability features in this area.

Jordan, Preston D.; Oldenburg, Curtis M.; Nicot, Jean-Philippe

2008-11-01T23:59:59.000Z

343

Localized rotation of principal stress around faults and fractures determined from borehole breakouts in hole B of the Taiwan Chelungpu-fault Drilling Project (TCDP)  

Science Journals Connector (OSTI)

To reveal details of stress perturbations associated with faults and fractures, we investigated the faults and large fractures accompanied by stress-induced borehole breakouts or drilling-induced tensile fractures in hole B of the Taiwan Chelungpu-fault Drilling Project (TCDP). Then, we determined the relationship between the faults and fractures and stress orientation changes. We identified faults and fractures from electrical images of the borehole wall obtained by downhole logging but also from photographs and descriptions of retrieved core samples, and measured the variations in the principal horizontal stress orientation ascertained from borehole breakouts observed on the electrical images in the vicinity of the faults and fractures. Identification of geological structures (faults, fractures, and lithologic boundaries) by electrical images only is difficult and may sometimes yield incorrect results. In a novel approach, therefore, we used both the electrical images and core photographs to identify geological structures. We found four patterns of stress orientation change, or no change, in the vicinity of faults and fractures in TCDP hole B: (i) abrupt (discontinuous) rotation in the vicinity of faults or fractures; (ii) gradual rotation; (iii) suppression of breakouts at faults, fractures, or lithologic boundaries; and (iv) no change in the stress orientation. We recognized stress fluctuations, that is, heterogeneous mesoscale (? 10 cm) stress distributions with respect to both stress orientation and magnitude. In addition, we found that stress state changes occurred frequently in the vicinity of faults, fractures, and lithologic boundaries.

Weiren Lin; En-Chao Yeh; Jih-Hao Hung; Bezalel Haimson; Tetsuro Hirono

2010-01-01T23:59:59.000Z

344

Prediction of marine diesel engine performance under fault conditions  

Science Journals Connector (OSTI)

The diesel engine, due to its superior efficiency when compared to other thermal engines, is widely used for propulsion of marine vessels. Since in such applications the power concentration is critical, most marine diesel engines are of the turbocharged type. Turbocharging has a serious effect on engine performance due to the interaction between the turbocharger and the engine. This interaction makes the detection of engine faults extremely difficult since a specific fault affects the turbocharger and through it the engine. For this reason various methods have been proposed for the detection of engine faults. The present author has in the past presented a method for marine diesel diagnosis by processing measured engine data using a simulation model. In the present work a completely different approach is followed; an attempt is made to use a simulation model to predict marine diesel engine performance under various fault conditions. The method is applied to a newly built vessel powered by a slow speed two stroke marine diesel engine. Using the engine shop trial data obtained under propeller law the simulation model constants are determined, using an automatic method that has been developed. The comparison of results obtained with the data from the official shop trials confirms the accuracy of the model and its ability to predict almost all operating parameters of the engine. The model is then used to produce results by simulating various engine faults or faults of its subsystems. From this analysis their impact on various measurable engine parameters is determined. It is interesting to see that in the case of turbocharged engines some faults have a different effect when compared to naturally aspirated ones. Also, it is revealed that without the use of modeling in many cases it is relatively difficult to determine the actual cause for an engine malfunction, since the observed effects on engine performance are similar. The proposed method is promising and assists the engineer to understand the actual effect of various faults on engine performance. Also it can be used as a training tool since it is easy to simulate various engine faults, a procedure which is extremely difficult, if not impossible, to perform on the field.

Dimitrios T Hountalas

2000-01-01T23:59:59.000Z

345

Science DMZ for ALS  

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

ALS Science Engagement Move your data Programs & Workshops Science Requirements Reviews Case Studies OSCARS Case Studies Science DMZ Case Studies Science DMZ @ UF Science DMZ @ CU...

346

Flüssiger Wasserstoff als Kraftstoff  

Science Journals Connector (OSTI)

Seit mehr als hundert Jahren stellen Kohlenwasserstoffe aus Rohöl fast ausschließlich die Basis für alle im Verkehr verwendeten Kraftstoffe dar. Ein Verkehr ohne Benutzung von Kraftstoffen auf Kohlenwasserstof...

Prof. Dr. Ing. habil. Walter Peschka

1984-01-01T23:59:59.000Z

347

Howes et al. Reply  

E-Print Network (OSTI)

Howes et al. Reply to Comment on "Kinetic Simulations of Magnetized Turbulence in Astrophysical Plasmas" arXiv:0711.4355

G. G. Howes; S. C. Cowley; W. Dorland; G. W. Hammett; E. Quataert; A. A. Schekochihin; T. Tatsuno

2008-12-12T23:59:59.000Z

348

Accident Fault Trees for Defense Waste Processing Facility  

SciTech Connect

The purpose of this report is to document fault tree analyses which have been completed for the Defense Waste Processing Facility (DWPF) safety analysis. Logic models for equipment failures and human error combinations that could lead to flammable gas explosions in various process tanks, or failure of critical support systems were developed for internal initiating events and for earthquakes. These fault trees provide frequency estimates for support systems failures and accidents that could lead to radioactive and hazardous chemical releases both on-site and off-site. Top event frequency results from these fault trees will be used in further APET analyses to calculate accident risk associated with DWPF facility operations. This report lists and explains important underlying assumptions, provides references for failure data sources, and briefly describes the fault tree method used. Specific commitments from DWPF to provide new procedural/administrative controls or system design changes are listed in the ''Facility Commitments'' section. The purpose of the ''Assumptions'' section is to clarify the basis for fault tree modeling, and is not necessarily a list of items required to be protected by Technical Safety Requirements (TSRs).

Sarrack, A.G.

1999-06-22T23:59:59.000Z

349

Grain-scale Comminution and Alteration of Arkosic Rocks in the Damage Zone of the San Andreas Fault at SAFOD  

E-Print Network (OSTI)

is cut by numerous subsidiary faults that display extensive evidence of repeating episodes of compaction, shear, dilation, and cementation. The subsidiary faults are grouped into three size classes: 1) small faults, 1 to 2 mm thick, that record an early...

Heron, Bretani

2012-02-14T23:59:59.000Z

350

Science DMZ for ALS  

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

ALS ALS About ESnet Overview ESnet Staff Governance Our Network Case Studies OSCARS Case Studies Science DMZ Case Studies Science DMZ CU Science DMZ Penn State & VTTI Science DMZ NOAA Science DMZ NERSC Science DMZ ALS Multi-facility Workflow LCLS ESnet Strategic Plan ESnet Organizational Chart ESnet History Science Requirements Careers Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Science DMZ for ALS Many beamline scientists at Berkeley Lab's Advanced Light Source (ALS) are or will be experiencing slower network speeds because of instrument upgrades. These new instruments, or more specifically detectors, are

351

Analysis of electrical signatures in synchronous generators characterized by bearing faults  

E-Print Network (OSTI)

Synchronous generators play a vital role in power systems. One of the major mechanical faults in synchronous generators is related to bearings. The popular vibration analysis method has been utilized to detect bearing faults for years. However...

Choi, Jae-Won

2009-05-15T23:59:59.000Z

352

Observations on Faults and Associated Permeability Structures in Hydrogeologic Units at the Nevada Test Site  

SciTech Connect

Observational data on Nevada Test Site (NTS) faults were gathered from a variety of sources, including surface and tunnel exposures, core samples, geophysical logs, and down-hole cameras. These data show that NTS fault characteristics and fault zone permeability structures are similar to those of faults studied in other regions. Faults at the NTS form complex and heterogeneous fault zones with flow properties that vary in both space and time. Flow property variability within fault zones can be broken down into four major components that allow for the development of a simplified, first approximation model of NTS fault zones. This conceptual model can be used as a general guide during development and evaluation of groundwater flow and contaminate transport models at the NTS.

Prothro, Lance B.; Drellack, Sigmund L.; Haugstad, Dawn N.; Huckins-Gang, Heather E.; Townsend, Margaret J.

2009-03-30T23:59:59.000Z

353

Advanced fault diagnosis techniques and their role in preventing cascading blackouts  

E-Print Network (OSTI)

This dissertation studied new transmission line fault diagnosis approaches using new technologies and proposed a scheme to apply those techniques in preventing and mitigating cascading blackouts. The new fault diagnosis approaches are based on two...

Zhang, Nan

2007-04-25T23:59:59.000Z

354

Fault tree analysis of spontaneous combustion of sulphide ores and its risk assessment  

Science Journals Connector (OSTI)

A logic fault tree of mine spontaneous combustion of sulphide ores was built by the fault tree analysis (FTA) based on a lot of mechanism investigation of sulphide ore spontaneous combustion in more than ten m...

Chao Wu

1995-11-01T23:59:59.000Z

355

The Auto-tuning of ASC and Fault Online Selection Device in Intelligent Substation  

Science Journals Connector (OSTI)

In this chapter, the characteristic of single-phase earth fault in the 10kV isolated neutral distribution network is studied. The application of the auto-tuning of arc suppression coil (ASC) and fault line select...

Haibo Bu; Zhihong Zhang; Fazhang Li…

2014-01-01T23:59:59.000Z

356

E-Print Network 3.0 - aircraft fault detection Sample Search...  

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

of a one step diagnostic system to detect faults. It has been... considered in the FMEA, and it can only detect faults defined in the component library but it does have......

357

Characterization of the structure of faults in the Eocene Carrizo Formation near Gause, Milam County, Texas  

E-Print Network (OSTI)

-scale graben accommodating NW-SE extension. The Carrizo Fm. consists primarily of friable to weakly lithified quartz sandstones with several horizons with interbedded siltstones and shales. Five faults and fault zones occur in the quarry with displacements...

Yilmaz, Ramazan

2012-06-07T23:59:59.000Z

358

Effects of un-transposed UHV transmission line on fault analysis of power systems  

Science Journals Connector (OSTI)

The conventional fault analysis method based on symmetrical components supposes that the three-phase parameters of un-transposed transmission line are symmetrical in case of fault. The errors caused by the method...

Anning Wang ???; Qing Chen ? ?; Zhanping Zhou ???

2008-06-01T23:59:59.000Z

359

Quenching Characteristics of a 400V-100A Class Superconducting Fault Current Limiter  

Science Journals Connector (OSTI)

The suppression of large fault currents in large electric power systems constitutes an ... previously proposed a conceptually new type of superconducting fault current limiter and its application to model distrib...

Takeshi Okuma; Tsukushi Hara; Takahiko Yamamoto…

1992-01-01T23:59:59.000Z

360

A Study on a High-Tc Superconducting Fault Current Limiter  

Science Journals Connector (OSTI)

The application of a high-Tc superconductor with a high critical current density (Jc) to a fault current limiter has been investigated. When the superconductor changes ... , it has a resistance which can limit fault

Tatsuya Hayashi; Teijiro Mori; Yuuichi Wada…

1992-01-01T23:59:59.000Z

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


361

New Concept of a Superconducting Fault Current Limiter and Its Evaluation of Quenching Feature  

Science Journals Connector (OSTI)

The present paper reviews the concept of a new superconducting fault current limiter with NbTi AC superconducting wire for the suppression of short-circuit currents. This fault current limiter takes full advantag...

Kiyoshi Okaniwa; Tsukushi Hara; Takahiko Yamamoto…

1991-01-01T23:59:59.000Z

362

Observation and scaling of microearthquakes from the Taiwan Chelungpu-fault borehole seismometers  

Science Journals Connector (OSTI)

......Chelungpu-fault borehole seismometers...Chelungpu-fault Drilling Project Borehole Seismometers...Despite the large coseismic slip...stress drops of larger events including...Taiwan Chelungpu drilling project (TCDP...seven-level vertical borehole seismic array......

Yen-Yu Lin; Kuo-Fong Ma; Volker Oye

2012-07-01T23:59:59.000Z

363

Locating an active fault zone in Coso geothermal field by analyzing...  

Open Energy Info (EERE)

production and injection drilling, since an active fault zone often acts as a fracture-extensive low-velocity wave guide to seismic waves. We have located an active fault...

364

Basement faults and seismicity in the Appalachian Basin of New York State  

Science Journals Connector (OSTI)

Landsat lineaments identified by Earth Satellite Corporation (EARTHSAT, 1997) can be groundtruthed across the Appalachian Basin of New York State (NYS). Both fracture intensification domains (FIDs) and faults are observed in outcrop along the lineaments. Confirmation of deep structure associated with the surface structure is provided by both well log analyses and seismic reflection data (primarily proprietary). Additional faults are proposed by comparing the lineament locations with gravity and magnetic data. The result is a web of basement faults that crisscross New York State. By overlaying epicenter locations on the fault/lineament maps, it is possible to observe the spatial correlation between seismic events and the faults. Every seismic event in the Appalachian Basin portion of NYS lies on or near a known or suspected fault. It thus appears that not only are there more faults than previously suspected in NYS, but also, many of these faults are seismically active.

Robert D Jacobi

2002-01-01T23:59:59.000Z

365

The 2002 Denali Fault Earthquake, Alaska: A Large Magnitude, Slip-Partitioned Event  

Science Journals Connector (OSTI)

...the Trans Alaska Pipeline at the Denali fault crossing was engineered...dextral slip. The pipeline, designed to...slip at the fault crossing (12), withstood...13 Alyeska Pipeline Service Company (APSC), Design Basis DB-180...

Donna Eberhart-Phillips; Peter J. Haeussler; Jeffrey T. Freymueller; Arthur D. Frankel; Charles M. Rubin; Patricia Craw; Natalia A. Ratchkovski; Greg Anderson; Gary A. Carver; Anthony J. Crone; Timothy E. Dawson; Hilary Fletcher; Roger Hansen; Edwin L. Harp; Ruth A. Harris; David P. Hill; Sigrún Hreinsdóttir; Randall W. Jibson; Lucile M. Jones; Robert Kayen; David K. Keefer; Christopher F. Larsen; Seth C. Moran; Stephen F. Personius; George Plafker; Brian Sherrod; Kerry Sieh; Nicholas Sitar; Wesley K. Wallace

2003-05-16T23:59:59.000Z

366

Power system fault analysis based on intelligent techniques and intelligent electronic device data  

E-Print Network (OSTI)

This dissertation has focused on automated power system fault analysis. New contributions to fault section estimation, protection system performance evaluation and power system/protection system interactive simulation have been achieved. Intelligent...

Luo, Xu

2007-09-17T23:59:59.000Z

367

On strong fault tolerance (or strong Menger-connectivity) of multicomputer networks  

E-Print Network (OSTI)

As the size of networks increases continuously, dealing with networks with faulty nodes becomes unavoidable. In this dissertation, we introduce a new measure for network fault tolerance, the strong fault tolerance (or strong Menger...

Oh, Eunseuk

2004-11-15T23:59:59.000Z

368

On the Prevalence of Sensor Faults in Real-World Deployments  

E-Print Network (OSTI)

A. Great Duck Island (GDI) data set We looked at datafor different sensors in the GDI data set. The Hybrid (I)faults Fig. 9. SHORT Faults in GDI data set rule and the HMM

Sharma, Abhishek; Golubchik, Leana; Govindan, Ramesh

2007-01-01T23:59:59.000Z

369

Remote Fault Detection of Building HVAC System Using a Global Optimization Program  

E-Print Network (OSTI)

the simulation program in conjunction with synthetic measured data to identify faults in the building operation. This fault detection approach has successfully identified all of the faulty parameters with noise levels of 1%, 3% and 6%. It successfully detected...

Lee, S. U.; Claridge, D. E.

2004-01-01T23:59:59.000Z

370

The effect of fault relayand clay smearing on groundwater flow patterns in the Lower Rhine  

E-Print Network (OSTI)

in the unconsolidated sediments of the Lower Rhine Embayment. Hydraulic head maps show that many individual faults form unconsolidated sediments at shal- low depth is likely to be di¡erent from that of faults at depths where rocks

Bense, Victor

371

Thermo-and hydro-mechanical processes along faults during rapid slip  

E-Print Network (OSTI)

Thermo- and hydro-mechanical processes along faults during rapid slip James R. Rice & Eric M micro-contacts, and (2) Thermal pressurization of fault-zone pore fluid. Both have characteristics which

Dunham, Eric M.

372

Tarmat behavior calculated for reservoir with sealing fault  

SciTech Connect

The Minagish Oolite oil reservoir in Kuwait is one of many Middle East reservoirs characterized by the presence of a tarmat (heavy to tar-like crude) at the oil-water contact. Since a waterflood project is planned for the Minagish Oolite, which contains a radial pattern of faults, a study was made to consider tarmat behavior upon water injection below it when the injection well is located near a sealing fault. The study resulted in a technique to predict the time of tarmat breakdown, response time at the nearest observation well, and differential pressure at the tarmat anywhere in the reservoir.

Osman, M.E.S.

1986-08-01T23:59:59.000Z

373

Tectonic history and setting of a seismogenic intraplate fault system that lacks microseismicity: The Saline River fault system, southern United States  

Science Journals Connector (OSTI)

Abstract Although the northwest-striking Saline River fault system of southeastern Arkansas is not defined by microseismicity, it is associated with sand blows and shows evidence of Pleistocene and Holocene surface ruptures, suggesting a significant seismogenic potential. This fault system is within the northern Gulf of Mexico interior coastal plain, a region only recently recognized as containing seismogenic faults. To better characterize this active fault system, we reconstructed its post-Paleozoic history using petroleum and coal industry wire-line well log and seismic reflection subsurface data. The Saline river fault system initiated as a series of northwest-striking grabens during Triassic/Jurassic uplift and incipient Gulf of Mexico rifting along the basement Alabama–Oklahoma transform margin of the North American Proterozoic craton. During post-rift subsidence, these grabens were buried by Gulf sediments until mid-Cretaceous uplift and igneous activity resulted in minor extensional reactivation of graben faults. Faulting style changed from extension to transpression during the Late Cretaceous due to compression of eastern North America as the North Atlantic rapidly widened and due to thermal weakening of the Alabama–Oklahoma transform lithospheric discontinuity as it obliquely crossed a mantle hot spot. In the Late Cretaceous, graben faults experienced contractional reactivation and steep, deeply-rooted transpressional faults developed within and parallel to the graben system. These transpressional faults locally displace Eocene, Pleistocene, and Holocene sediments. Fault activity continues on the Saline River fault system due to thin crust along the Alabama–Oklahoma transform and to high heat flow, which act together to weaken the crust and promote seismogenic tectonism. The fault system may lack appreciable microseismicity because the aftershock sequence of the last large earthquake has had time to dissipate.

Randel Tom Cox; J. Luke Hall; Chris S. Gardner

2013-01-01T23:59:59.000Z

374

Static characteristics and rotordynamic coefficients of a four-pad tilting-pad journal bearing with ball-in-socket pivots in load-between-pad configuration  

E-Print Network (OSTI)

Static characteristics and rotordynamic coefficients were experimentally determined for a four-pad tilting-pad journal bearing with ball-in-socket pivots in loadbetween- pad configuration. A frequency-independent [M]-[C]-[K] model fit...

Harris, Joel Mark

2009-05-15T23:59:59.000Z

375

Study of the gamma p --> pi0 pi0 p reaction with the Crystal Ball/TAPS at the Mainz  

E-Print Network (OSTI)

The gamma p --> pi0 pi0 p reaction has been measured from threshold to 1.4 GeV using the Crystal Ball and TAPS photon spectrometers together with the photon tagging facility at the Mainz Microtron. The experimental results include total and differential cross sections as well as specific angular distributions, which were used to extract partial-wave amplitudes. In particular, the energy region below the D13(1520) resonance was studied.

V. L. Kashevarov; A. Fix; S. Prakhov; P. Aguar-Bartolomé; J. R. M. Annand; H. J. Arends; K. Bantawa; R. Beck; V. Bekrenev; H. Berghäuser; A. Braghieri; W. J. Briscoe; J. Brudvik; S. Cherepnya; R. F. B. Codling; E. J. Downie; P. Drexler; L. V. Fil'kov; D. I. Glazier; R. Gregor; E. Heid; D. Hornidge; L. Isaksson; I. Jaegle; O. Jahn; T. C. Jude; I. Keshelashvili; R. Kondratiev; M. Korolija; M. Kotulla; A. Koulbardis; S. Kruglov; B. Krusche; V. Lisin; K. Livingston; I. J. D. MacGregor; Y. Maghrbi; D. M. Manley; J. C. McGeorge; E. F. McNicoll; D. Mekterovic; V. Metag; A. Mushkarenkov; B. M. K. Nefkens; A. Nikolaev; R. Novotny; H. Ortega; M. Ostrick; P. Ott; P. B. Otte; B. Oussena; P. Pedroni; F. Pheron; A. Polonski; J. Robinson; G. Rosner; T. Rostomyan; S. Schumann; M. H. Sikora; D. I. Sober; A. Starostin; I. I. Strakovsky; I. M. Suarez; I. Supek; C. M. Tarbert; M. Thiel; A. Thomas; M. Unverzagt; D. P. Watts; D. Werthmüller; F. Zehr

2012-06-14T23:59:59.000Z

376

Impact-absorbing Materials in Reducing Brain Vibration Caused by Ball-to-head Impact in Soccer  

Science Journals Connector (OSTI)

Abstract There has been a long debate among researchers on whether soccer heading is capable of causing brain trauma. A recent study suggests that headings exceeding a threshold level of 855 to 1,550 per year, results in microstructural abnormalities in the brain's white matter. This shows that brain trauma is caused by cumulative effect of repetitive headings. The use of protective headgear is one of the suggested preventive measures to protect the brain especially for younger players. Researchers have tested several commercial headgears and found that they are only effective in head-to-head impact, but ineffective in attenuating impact caused by heading. This is due to the fact that soccer ball is compliant in nature relative to the head. The aim of this study is to investigate materials that can be utilised to minimise the acceleration of the brain caused by soccer heading. A vertical drop ball test was conducted on an instrumented dummy skull. The inner cavity of the skull is filled with ultrasound gel that represents the brain. Six impact-absorbing materials were tested to determine the most effective material that reduces the acceleration of the brain substitute. The speed of the ball before and after impact as well as impact duration were measured using high-speed camera. Coefficient of restitution was calculated to ensure the material is not only capable of reducing the brain acceleration, but also maintains heading performance. It was found that polymer kneepad foam is the most effective material that minimises the acceleration of brain substitute whilst maintaining the speed of the ball after impact.

Zahari Taha; Mohd Hasnun Arif Hassan; Iskandar Hasanuddin; Mohd Azri Aris; Anwar P.P. Abdul Majeed

2014-01-01T23:59:59.000Z

377

Weighted local and global regressive mapping: A new manifold learning method for machine fault classification  

Science Journals Connector (OSTI)

This article studies if machine faults can be effectively determined in a reduced dimensional space. When faults occur in machines, machine vibration signals will deviate from its normal signal pattern. Such changes can be reflected in the features constructed ... Keywords: Fault classification, Feature extraction, Unsupervised learning, Vibrations

Xiaohang Jin, Fang Yuan, Tommy W. S. Chow, Mingbo Zhao

2014-04-01T23:59:59.000Z

378

Performance of Graceful Degradation for Cache Faults Hyunjin Lee Sangyeun Cho Bruce R. Childers  

E-Print Network (OSTI)

Performance of Graceful Degradation for Cache Faults Hyunjin Lee Sangyeun Cho Bruce R. Childers to thermal hot spots) and may man- ifest themselves as operational faults at the micro- Bruce Childers that is dependent on the fault and the frequency of access to an address that would normally be held in the disabled

Cho, Sangyeun

379

Dealing with Faults in Wireless Sensor Networks Lilia Paradis and Qi Han  

E-Print Network (OSTI)

, fault detection, fault diagnosis, fault tolerance 1 Introduction Continuing advances in computational number of such sensing devices with severely limited processing, storage and communication capabilities are fragile, 2 #12;and they may fail due to depletion of batteries or destruction by an external event

380

Bearing Fault Detection in DFIG-Based Wind Turbines Using the First Intrinsic Mode Function  

E-Print Network (OSTI)

Bearing Fault Detection in DFIG-Based Wind Turbines Using the First Intrinsic Mode Function Y for bearing fault detection in DFIG-based wind turbines. The proposed method uses the first Intrinsic Mode Terms--Wind turbine, Doubly Fed Induction Generator (DFIG), fault detection, bearings, signal processing

Boyer, Edmond

Note: This page contains sample records for the topic "al fault ball" 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

IPR: In-Place Reconfiguration for FPGA Fault Tolerance and Rupak Majumdar2  

E-Print Network (OSTI)

IPR: In-Place Reconfiguration for FPGA Fault Tolerance Zhe Feng1 , Yu Hu1 , Lei He1 and Rupak Angeles ABSTRACT We describe In-Place Reconfiguration (IPR) for LUT-based FPGAs, an algorithm the propagation of faults seen at a pair of comple- mentary inputs. Based on IPR, we develop a fault

He, Lei

382

Fault Sensitivity Analysis and Reliability Enhancement of Analog-to-Digital Converters  

E-Print Network (OSTI)

proposing a sensitivity analysis methodology for -particle induced transients and then suggesting redesign- sients is introduced which improves the accuracy of the sensitivity analysis. The fault simulations show, Fault Sensitivity, Analog-to- Digital Converters, Alpha particles, Reliability, Transient Faults I

Koren, Israel

383

Dynamic rupture through a branched fault2 configuration at Yucca Mountain and resulting3  

E-Print Network (OSTI)

Dynamic rupture through a branched fault2 configuration at Yucca Mountain and resulting3 ground analyses. This is motivated by the normal faults in the vicinity10 of Yucca Mountain, NV, a potential site fault12 located approximately 1 km west of the crest of Yucca Mountain, is the13 most active

Dmowska, Renata

384

The Research of the Intelligent Fault Diagnosis System Optimized by GA for Marine Diesel Engine  

Science Journals Connector (OSTI)

The marine diesel engine is a complex system, which has the important function to guarantee the marine security. There is strong coupling relationship among the mapping process of fault diagnosis. An approach of intelligent fault diagnosis based on fuzzy ... Keywords: Fuzzy neural network, Genetic algorithm, Fault diagnosis, Marine diesel engine

Peng Li; Qi Jin; Haixia Gong

2008-12-01T23:59:59.000Z

385

Solid-state fault current limiter for voltage sag mitigation and its parameters design  

Science Journals Connector (OSTI)

Due to the difficulty in electric distribution network reinforcement and the interconnection of more distributed generations, fault current level has become a serious problem in system operations. The utilization of solid-state fault current limiters ... Keywords: power quality, simulation, solid-state fault current limiter, voltage sag

B. Boribun; T. Kulworawanichpong

2010-07-01T23:59:59.000Z

386

Fault current limiting and voltage sag mitigation by means of a resonant type FCL  

Science Journals Connector (OSTI)

In this paper a resonant type of fault current limiter and its application are presented. During normal operation of circuit, the thyristors is off and the resonant branches are short circuit. Therefore there is not any voltage drop on FCL. In this way, ... Keywords: bypass resistance, fault analysis, power quality, resonant type fault current limiter

M. S. Mohebbi Nazar; M. Abapour

2006-08-01T23:59:59.000Z

387

Interseismic deformation and geologic evolution of the Death Valley Fault Zone  

E-Print Network (OSTI)

Interseismic deformation and geologic evolution of the Death Valley Fault Zone Cecilia Del Pardo,1 Valley Fault Zone (DVFZ), located in southeastern California, is an active fault system with an evolved motion and long-term stress accumulation rates to better understand the nature of both past and present

Blewitt, Geoffrey

388

Core-log integration studies in hole-A of Taiwan Chelungpu-fault Drilling Project  

Science Journals Connector (OSTI)

......Chelungpu-fault Drilling Project Yun-Hao...Chelungpu-fault Drilling Project (TCDP...involved in the large displacements...electrical borehole images and dipole-shear...energetics of a large earthquake from...Chelungpu-fault Drilling Project, Nature...Stress-induced borehole elongation......

Yun-Hao Wu; En-Chao Yeh; Jia-Jyun Dong; Li-Wei Kuo; Jui-Yu Hsu; Jih-Hao Hung

2008-09-01T23:59:59.000Z

389

Heat signature on the Chelungpu fault associated with the 1999 Chi-Chi, Taiwan earthquake  

E-Print Network (OSTI)

for a large earthquake. Temperature measurements in a borehole that intersects the Chelungpu fault at a depth-fault temperature change observed for any previous large earthquakes that can be attributed to the frictional, 1999 Chi-Chi earth- quake, the Taiwan Chelungpu-fault Drilling Project (TCDP) bored two holes which

Ma, Kuo-Fong

390

A CONTROLLER FOR HVAC SYSTEMS WITH FAULT DETECTION CAPABILITIES BASED ON SIMULATION MODELS  

E-Print Network (OSTI)

1 A CONTROLLER FOR HVAC SYSTEMS WITH FAULT DETECTION CAPABILITIES BASED ON SIMULATION MODELS T. I describes a control scheme with fault detection capabilities suitable for application to HVAC systems as a reference of correct operation. Faults that occur in the HVAC system under control cause the PI

391

Yield Modeling and Analysis of a Clockless Asynchronous Wave Pipeline with Pulse Faults  

E-Print Network (OSTI)

Yield Modeling and Analysis of a Clockless Asynchronous Wave Pipeline with Pulse Faults T. Feng fault model and its modeling and analysis methods in a clockless asynchronous wave pipeline fault rate model for establishing a sound theoretical foundation for clockless wave pipeline design

Ayers, Joseph

392

Current Issues in Vibration-Based Fault Diagnostics and Prognostics Victor Giurgiutiu  

E-Print Network (OSTI)

1 Current Issues in Vibration-Based Fault Diagnostics and Prognostics Victor Giurgiutiu Mechanical Current issues in vibration-based fault diagnostics and prognostics are: (a) fault/damage identification and then classification. Keywords: structural health monitoring, active sensors, vibrations, signal analysis; smart

Giurgiutiu, Victor

393

Fault Diagnosis Of A Water For Injection System Using Enhanced Structural Isolation  

Science Journals Connector (OSTI)

A water for injection system supplies chilled sterile water as a solvent for pharmaceutical products. There are ultimate requirements for the quality of the sterile water, and the consequence of a fault in temperature or in flow control within the process ... Keywords: Fault Diagnosis, Fault Isolation, Matching, Structural Analysis

Morten Laursen; Mogens Blanke; Dilek Dü?TegöR

2008-12-01T23:59:59.000Z

394

Description of a solder pulse generator for the single step formation of ball grid arrays  

SciTech Connect

The traditional geometry for surface mount devices is the peripheral array where the leads are on the edges of the device. As the technology drives towards high input/output (I/O) count (increasing number of leads) and smaller packages with finer pitch (less distance between peripheral leads), limitations on peripheral surface mount devices arise. The leads on these fine pitch devices are fragile and can be easily bent. It becomes increasingly difficult to deliver solder past to leads spaced as little as 0.012 inch apart. Too much solder mass can result in bridging between leads while too little solder can contribute to the loss of mechanical and electrical continuity. A solution is to shift the leads from the periphery of the device to the area under the device. This scheme is called areal array packaging and is exemplified by the ball grid array (BGA) package. A system has been designed and constructed to deposit an entire array of several hundred uniform solder droplets onto a printed circuit board in a fraction of a second. The solder droplets wet to the interconnect lands on a pc board and forms a basis for later application of a BGA device. The system consists of a piezoelectric solder pulse unit, heater controls, an inert gas chamber and an analog power supply/pulse unit.

Schmale, D.T.; Frear, D.R.; Yost, F.G.; Essien, M. [Sandia National Labs., Albuquerque, NM (United States). Materials and Process Sciences Center

1997-02-01T23:59:59.000Z

395

ALS Beamlines Directory  

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

ALS Beamlines Directory Print ALS Beamlines Directory Print Beamlines, Parameters, Contact Information, and Schedules Download a high-resolution version of the ALS Beamclock. See Beamclock to view the ALS energy-related beamlines beamclock. Beamline Parameters Beamline and endstation technical information is available through the links below. Unless otherwise noted, all beamlines are currently operational. Individual beamline schedules are posted when available. Please contact the responsible beamline scientist for additional schedule information. When calling from off-site, all beamline (BL) phone numbers that begin with a "2" are preceded by 495- (i.e., 495-2014); all others are preceded by 486-. Beamline Number Source Technique/ Group Name Energy Range Beamline Contact Schedule/BL Phone

396

ALS Beamlines Directory  

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

ALS Beamlines Directory Print ALS Beamlines Directory Print Beamlines, Parameters, Contact Information, and Schedules Download a high-resolution version of the ALS Beamclock. See Beamclock to view the ALS energy-related beamlines beamclock. Beamline Parameters Beamline and endstation technical information is available through the links below. Unless otherwise noted, all beamlines are currently operational. Individual beamline schedules are posted when available. Please contact the responsible beamline scientist for additional schedule information. When calling from off-site, all beamline (BL) phone numbers that begin with a "2" are preceded by 495- (i.e., 495-2014); all others are preceded by 486-. Beamline Number Source Technique/ Group Name Energy Range Beamline Contact Schedule/BL Phone

397

ALS User Meeting Archives  

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

ALS User Meeting Archives ALS User Meeting Archives Past User Meeting Agendas, Workshops, and Awards Year Agenda Workshops David A. Shirley (Science) Klaus Halbach (Instrumentation) Tim Renner (Service) 2012 2012 User Meeting Agenda 2012 User Meeting Workshops 2012 ALS User Meeting Awards Carl Percival, Dudley Shallcross, Craig Taatjes and David Osborn (Sandia), for making the first direct measurements of the reactions of Criegee intermediates, and showing that their impact on tropospheric chemistry and climate may be substantially greater than previously assumed. 2012 ALS User Meeting Awards Jeff Dickert and Simon Morton of Berkeley Lab's Physical Biosciences Division for the invention and implementation of the Compact Variable Collimator (CVC), which has led to a dramatic increase in productivity of protein crystallography.

398

Hacking als Grenzüberschreitung  

Science Journals Connector (OSTI)

In der Vergangenheit hat es sich als nützlich erwiesen, am Anfang eines Vortrages erst einmal ein paar Worte zu dem Verein zu verlieren, in dessen Vorstand ich mitwirke. Der Chaos Computer Club (CCC) ist viele...

Frank Simon

1994-01-01T23:59:59.000Z

399

ALS Staff Photo  

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

Staff Photo Print On May 14, 2013, members of ALS staff posed for a group photo in front of the dome. A hi-res version can be downloaded here. The last staff photo was taken in...

400

Flachglas Als Baustoff  

Science Journals Connector (OSTI)

Der Werkstoff Glas bezeichnet ein Schmelzprodukt, das in der Natur als erstarrte vulkanische Schmelze vorkommt und dem Mensch bereits vor 5000 Jahren für die Herstellung von Schmuck und Werkstücken diente. Im ...

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "al fault ball" 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

Fault prediction in aircraft engines using Self-Organizing Maps  

E-Print Network (OSTI)

Fault prediction in aircraft engines using Self- Organizing Maps Marie Cottrell1 , Patrice Gaubert1. Aircraft engines are designed to be used during several tens of years. Their maintenance is a challenging and costly task, for obvious security reasons. The goal is to ensure a proper operation of the engines

Paris-Sud XI, Université de

402

Modeling Fault Propagation in Telecommunications Networks for Diagnosis Purposes  

E-Print Network (OSTI)

Modeling Fault Propagation in Telecommunications Networks for Diagnosis Purposes A. Aghasaryan , C@lipn.univ-paris13.fr Abstract: This paper describes a formalism to model the behavior of telecommunications net. Keywords: network management, modeling, UML, distributed diagnosis. 1 Introduction Telecommunications

Pencolé, Yannick

403

Fault Tolerance in Data Gathering Wireless Sensor Networks  

Science Journals Connector (OSTI)

......total 30% node faults. FIGURE 8. Energy efficiency. better than LEACH when link error...Efficiency In this section, we analyze the energy efficiency (in Fig. 8) and time efficiency...May 1213, pp. 474479. The Printing House, Inc. [14] Huang, S. K., Ssu......

Guangyan Huang; Yanchun Zhang; Jing He; Jinli Cao

2011-06-01T23:59:59.000Z

404

Influence of plastic deformation on bimaterial fault rupture directivity  

E-Print Network (OSTI)

Influence of plastic deformation on bimaterial fault rupture directivity Nora DeDontney,1 Elizabeth of the role of the stress state on the distribution of plastic deformation and the direction of preferred in determining the location of plastic deformation. For different orientations, plastic deformation can

Dmowska, Renata

405

Fault Detection Effectiveness of Spathic Test Data Jane Huffman Hayes  

E-Print Network (OSTI)

Fault Detection Effectiveness of Spathic Test Data Jane Huffman Hayes Computer Science Department This paper presents an approach for generating test data for unit-level, and possibly integration-level, testing based on sampling over intervals of the input probability distribution, i.e., one that has been

Hayes, Jane E.

406

Invited Talk: Mitigating the Effects of Internet Timing Faults  

E-Print Network (OSTI)

Invited Talk: Mitigating the Effects of Internet Timing Faults Across Embedded Network Gateways and the Internet. The usual approach to making such a connection is to install a gateway node which translates from Internet protocols to embedded field bus network protocols. Such connections raise obvious security

Koopman, Philip

407

Autonomous FPGA Fault Handling through Competitive Runtime Reconfiguration  

E-Print Network (OSTI)

environments of mechanical/acoustical stress during launch, high doses of ionizing radiation, and thermal due to radiation- induced stuck-at-faults, thermal fatigue, oxide breakdown, electromigration-available [Xilinx04]. Meanwhile NASA terrestrial applications routinely employ FPGAs for tasks ranging from launch

DeMara, Ronald F.

408

Dynamic core length in saturated core fault current limiters  

Science Journals Connector (OSTI)

A saturated core fault current limiter (SCFCL) is a non-linear core-reactor where the core is saturated by an external superconducting DC bias source to achieve a low core permeability at nominal AC currents. Fault current levels in the AC coils de-saturate the core and transform it to a higher permeability state, hence limiting the fault current. In this work we describe the transition between saturated and de-saturated states in three SCFCL configurations. The 'effective core length', Leff, of the SCFCL, defined as the length of the de-saturated AC core limb, is introduced for exploring this transition as a function of the current, I, in the AC coil. Practically, Leff allows one to see the SCFCL as an inductor with a variable core length, allowing calculations of the impedance of the SCFCL over the whole range of operating currents. The Leff(I) curve is further used to calculate the dynamics of the demagnetization factor in a SCFCL. We show that the strong change in the magnetic induction of a SCFCL at high current is the result of both increasing the effective core length and decreasing the demagnetization factor. The method and results presented here serve as an important tool for comparing between various SCFCL concepts not only by comparing their impedance values at the extreme fault and nominal current conditions but also by providing an insight into the full de-saturation process.

Y Nikulshin; Y Wolfus; A Friedman; Y Yeshurun

2013-01-01T23:59:59.000Z

409

Acoustic condition monitoring of wind turbines: Tip faults  

Science Journals Connector (OSTI)

As a significant and growing source of the world’s energy wind turbine reliability is becoming a major concern. At least two fault detection techniques for condition monitoring of wind turbine blades have been reported in early literature i.e. acoustic emissions and optical strain sensors. These require off-site measurement. The work presented here offers an alternative non-contact fault detection method based on the noise emission from the turbine during operation. An investigation has been carried out on a micro wind turbine under laboratory conditions. 4 severity levels for a fault have been planted in the form of added weight at the tip of one blade to simulate inhomogeneous debris or ice build up. Acoustic data is obtained at a single microphone placed in front of the rotor. Two prediction methods have been developed and tested on real data: one based on a single feature - rotational frequency spectral magnitude; and another based on a fuzzy logic interference using two inputs - spectral peak and rotational peak variation with time. Results show that the single spectral peak feature can be used to determine fault severity in ranges. The implementation of the fuzzy logic using a further input feature is shown to significantly improve the detection accuracy.

Daniel J. Comboni; Bruno Fazenda

2012-01-01T23:59:59.000Z

410

Consequences of Fault Currents Contributed by Distributed Generation  

E-Print Network (OSTI)

Consequences of Fault Currents Contributed by Distributed Generation Supplemental Project Report Currents Contributed by Distributed Generation Natthaphob Nimpitiwan Gerald Heydt Research Project Team distributed generation (DG) is growing in the over- all generation mix due in part to state and national

411

Diverse neural net solutions to a fault diagnosis problem \\Lambda  

E-Print Network (OSTI)

system solution to a problem of fault diagnosis in a four­stroke marine diesel engine; that of early detection of faulty combustion in an engine cylinder. Recognition of faulty combustion usually requires the intervention of a skilled marine engineer, to undertake the time­ consuming and fallible process of comparing

Sharkey, Amanda

412

Fault-tolerant architecture for quantum computation using electrically controlled  

E-Print Network (OSTI)

ARTICLES Fault-tolerant architecture for quantum computation using electrically controlled an architecture for quantum computation using electrically controlled semiconductor spins by extending the Loss in the solid state. Here, we develop a scalable architecture for solid-state quantum computation based

Loss, Daniel

413

Fracture surface energy of the Punchbowl fault, San Andreas system  

E-Print Network (OSTI)

Fracture surface energy of the Punchbowl fault, San Andreas system Judith S. Chester1 , Frederick M. Chester1 & Andreas K. Kronenberg1 Fracture energy is a form of latent heat required to create weakening1­3 . Fracture energy has been estimated from seismological and experimental rock deformation data4

Chester, Frederick M.

414

Algorithm-dependent fault tolerance for distributed computing  

SciTech Connect

Large-scale distributed systems assembled from commodity parts, like CPlant, have become common tools in the distributed computing world. Because of their size and diversity of parts, these systems are prone to failures. Applications that are being run on these systems have not been equipped to efficiently deal with failures, nor is there vendor support for fault tolerance. Thus, when a failure occurs, the application crashes. While most programmers make use of checkpoints to allow for restarting of their applications, this is cumbersome and incurs substantial overhead. In many cases, there are more efficient and more elegant ways in which to address failures. The goal of this project is to develop a software architecture for the detection of and recovery from faults in a cluster computing environment. The detection phase relies on the latest techniques developed in the fault tolerance community. Recovery is being addressed in an application-dependent manner, thus allowing the programmer to take advantage of algorithmic characteristics to reduce the overhead of fault tolerance. This architecture will allow large-scale applications to be more robust in high-performance computing environments that are comprised of clusters of commodity computers such as CPlant and SMP clusters.

P. D. Hough; M. e. Goldsby; E. J. Walsh

2000-02-01T23:59:59.000Z

415

Module Placement for Fault-Tolerant Microfluidics-Based Biochips  

E-Print Network (OSTI)

Module Placement for Fault-Tolerant Microfluidics-Based Biochips FEI SU and KRISHNENDU CHAKRABARTY Duke University Microfluidics-based biochips are soon expected to revolutionize clinical diagnosis, DNA sequencing, and other laboratory procedures involving molecular biology. Most microfluidic biochips today

Chakrabarty, Krishnendu

416

Fault Tolerance on Interleaved inverter with Magnetic couplers  

E-Print Network (OSTI)

Fault Tolerance on Interleaved inverter with Magnetic couplers K.Guépratte, D.Frey, P-O.Jeannin, H Electrical Engineering (G2Elab), Thales Systemes Aeroportes Abstract- The paper focuses on a new control strategy for improving the availability of power electronic converters based on interleaved structures

Paris-Sud XI, Université de

417

Defects and Faults in Quantum Cellular Automata at Nano Scale  

E-Print Network (OSTI)

Defects and Faults in Quantum Cellular Automata at Nano Scale Mehdi Baradaran Tahoori, Mariam considerable research on quantum dot cellular automata (QCA) as a new computing scheme in the nano, quantum dot cellular automata (QCA) not only gives a solution at nano scale, but also it offers a new

418

Proceedings of the 18th Fault-Tolerant Computing Symposium  

E-Print Network (OSTI)

Proceedings of the 18th Fault-Tolerant Computing Symposium Tokyo, Japan, pp. 234-239, June 1988 performed on this erroneous information are ``undone'' using a hardware mechanism for fast rollback of a few and confine the damage caused by the error to the failed module, it is often necessary to check the outputs

Tamir, Yuval

419

This document contains 3087 words. FAULT-TOLERANT COMPUTING  

E-Print Network (OSTI)

or physical damage. An extensive methodology has been developed in this field over the past thirty years the annual IEEE International Symposium on Fault-Tolerant Computing (FTCS) and the papers in its Digests with protective redundancy so that, if the module fails, others can assume its function. Special mechanisms

Rennels, David A.

420

Three fault ride through controllers for wind systems running in isolated micro-grid and Effects of fault type on their performance: A review and comparative study  

Science Journals Connector (OSTI)

Abstract This paper presents survey about Fault Ride Through (FRT) techniques and controllers which employed with all wind generation system types. After presenting a comprehensive FRT survey, paper proposes three Fault Ride Through (FRT) controllers for keeping stability of Fixed Speed Wind Generation (FSWG) system serving in isolated Micro-Grid (MG). The first controller has been implemented by inserting Superconductor Fault Current Limiter (SFCL) in series with wind generator terminals during fault instant. The second proposed FRT controller is modifying the conventional Pitch Angle Controllers (PAC) to can spill and reduce high percentage of extracted mechanical wind power during and subsequent fault occurrence which in turns help stability improvement and restoration. Third FRT technique is performed by adapting the wind turbine gearbox ratio which forces the wind generation system to run far from the maximum power point. The best performance is obtained with the SFCL controller. Superior results are obtained when the three proposed FRT controllers are employed simultaneously. The three developed FRT controllers are simple, reliable and economical attractive. Effects of fault type on SFCL FRT controller performance are analyzed and investigated in details. The proposed SFCL FRT controller has been tested under single phase, double phase, phase to phase, and three phases to ground faults. Results display that the three phases to ground fault is the most severe type on SFCL FRT performance from stability point of view. On the other hand, double phase to ground fault is the most severe one from fluctuations and oscillations points of view. Parameters of the SFCL must be adjusted based on the three phases to ground fault. If the SFCL FRT controller is designed to can deal with three phases fault, it sure can deal with the other fault types successfully.

Rashad M. Kamel

2014-01-01T23:59:59.000Z

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


421

Proactive Fault Tolerance for HPC with Xen Virtualization  

SciTech Connect

with thousands of processors. At such large counts of compute nodes, faults are becoming common place. Current techniques to tolerate faults focus on reactive schemes to recover from faults and generally rely on a checkpoint/restart mechanism. Yet, in today's systems, node failures can often be anticipated by detecting a deteriorating health status. Instead of a reactive scheme for fault tolerance (FT), we are promoting a proactive one where processes automatically migrate from ?unhealthy? nodes to healthy ones. Our approach relies on operating system virtualization techniques exemplied by but not limited to Xen. This paper contributes an automatic and transparent mechanism for proactive FT for arbitrary MPI applications. It leverages virtualization techniques combined with health monitoring and load-based migration. We exploit Xen's live migration mechanism for a guest operating system (OS) to migrate an MPI task from a health-deteriorating node to a healthy one without stopping the MPI task during most of the migration. Our proactive FT daemon orchestrates the tasks of health monitoring, load determination and initiation of guest OS migration. Experimental results demonstrate that live migration hides migration costs and limits the overhead to only a few seconds making it an attractive approach to realize FT in HPC systems. Overall, our enhancements make proactive FT a valuable asset for long-running MPI application that is complementary to reactive FT using full checkpoint/ restart schemes since checkpoint frequencies can be reduced as fewer unanticipated failures are encountered. In the context of OS virtualization, we believe that this is the rst comprehensive study of proactive fault tolerance where live migration is actually triggered by health monitoring.

Nagarajan, Arun Babu [North Carolina State University; Mueller, Frank [North Carolina State University; Engelmann, Christian [ORNL; Scott, Stephen L [ORNL

2007-01-01T23:59:59.000Z

422

Field Mapping At Dixie Valley Geothermal Field Area (Wesnousky, Et Al.,  

Open Energy Info (EERE)

2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Dixie Valley Geothermal Field Area (Wesnousky, Et Al., 2003) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Field Mapping Activity Date Usefulness not indicated DOE-funding Unknown References Steven Wesnousky, S. John Caskey, John W. Bell (2003) Recency Of Faulting And Neotechtonic Framework In The Dixie Valley Geothermal Field And Other Geothermal Fields Of The Basin And Range Retrieved from "http://en.openei.org/w/index.php?title=Field_Mapping_At_Dixie_Valley_Geothermal_Field_Area_(Wesnousky,_Et_Al.,_2003)&oldid=510736" Categories: Exploration Activities DOE Funded Activities What links here

423

Development of Asset Fault Signatures for Prognostic and Health Management in the Nuclear Industry  

SciTech Connect

Proactive online monitoring in the nuclear industry is being explored using the Electric Power Research Institute’s Fleet-Wide Prognostic and Health Management (FW-PHM) Suite software. The FW-PHM Suite is a set of web-based diagnostic and prognostic tools and databases that serves as an integrated health monitoring architecture. The FW-PHM Suite has four main modules: Diagnostic Advisor, Asset Fault Signature (AFS) Database, Remaining Useful Life Advisor, and Remaining Useful Life Database. This paper focuses on development of asset fault signatures to assess the health status of generator step-up generators and emergency diesel generators in nuclear power plants. Asset fault signatures describe the distinctive features based on technical examinations that can be used to detect a specific fault type. At the most basic level, fault signatures are comprised of an asset type, a fault type, and a set of one or more fault features (symptoms) that are indicative of the specified fault. The AFS Database is populated with asset fault signatures via a content development exercise that is based on the results of intensive technical research and on the knowledge and experience of technical experts. The developed fault signatures capture this knowledge and implement it in a standardized approach, thereby streamlining the diagnostic and prognostic process. This will support the automation of proactive online monitoring techniques in nuclear power plants to diagnose incipient faults, perform proactive maintenance, and estimate the remaining useful life of assets.

Vivek Agarwal; Nancy J. Lybeck; Randall Bickford; Richard Rusaw

2014-06-01T23:59:59.000Z

424

Locating an active fault zone in Coso geothermal field by analyzing seismic  

Open Energy Info (EERE)

Locating an active fault zone in Coso geothermal field by analyzing seismic Locating an active fault zone in Coso geothermal field by analyzing seismic guided waves from microearthquake data Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Locating an active fault zone in Coso geothermal field by analyzing seismic guided waves from microearthquake data Details Activities (1) Areas (1) Regions (0) Abstract: Active fault systems usually provide high-permeability channels for hydrothermal outflow in geothermal fields. Locating such fault systems is of a vital importance to plan geothermal production and injection drilling, since an active fault zone often acts as a fracture-extensive low-velocity wave guide to seismic waves. We have located an active fault zone in the Coso geothermal field, California, by identifying and analyzing

425

Active Fault Controls At High-Temperature Geothermal Sites- Prospecting For  

Open Energy Info (EERE)

Page Page Edit History Facebook icon Twitter icon » Active Fault Controls At High-Temperature Geothermal Sites- Prospecting For New Faults Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Active Fault Controls At High-Temperature Geothermal Sites- Prospecting For New Faults Details Activities (1) Areas (1) Regions (0) Abstract: Our previous studies found spatial associations between seismically active faults and high-temperature geothermal resources in the western Basin and Range, suggesting that recency of fault movement may be a useful criterion for resource exploration. We have developed a simple conceptual model in which recently active (Holocene) faults are preferred conduits for migration of thermal water from deep crustal depths, and we

426

Abstract--The reliability and quality of power distribution systems are usually affected by many different distribution faults.  

E-Print Network (OSTI)

1 Abstract--The reliability and quality of power distribution systems are usually affected by many different distribution faults. Tree-caused faults are one of the major fault causes. In this paper, four to analyze the characteristics of tree-caused distribution faults. This paper also uses statistical

Chow, Mo-Yuen

427

Evaluation of Mechanical Properties of Nuclear Materials Using Non-Destructive Ball Indentation Technique  

SciTech Connect

Integrity of structural components depends on the deformation and fracture behavior of materials. For evaluating the material condition in-service, it is generally not feasible or practical or advisable to cut samples from operating structures. Non-destructive testing (NDT) techniques are required to evaluate the mechanical properties. Although several NDT techniques such as ultrasound, magnetic strength, Barkhausen noise, microhardness etc., are employed for estimating the mechanical property degradation, these methodologies are generally empirical and indirect. Automated Ball Indentation (ABI) is a non-destructive testing technique for direct measurement of mechanical and fracture properties of metallic engineering materials. Because of the small area over which the test is carried out, it is possible to determine point to point variations in the mechanical and fracture properties, such as those that exist in weldments. Although ABI technique is non-intrusive, it is a state-of-the-art mechanical test that measures directly the current/local deformation behavior of the material. In this paper, we present results from studies on the application of ABI technique to determine tensile and fracture properties of ferritic steels, an austenitic stainless steel, a nickel base superalloy and Zircaloy in different thermo-mechanical conditions. The effects of aging and cold work on these properties were determined from the ABI tests. Gradients in mechanical properties of ferritic steel welds, particularly in the narrow heat-affected zone, were clearly established. ABI technique was found to be useful in determining the anisotropy in the tensile properties of Zircaloy cladding tubes. The technique has potential as a non-destructive method for assessing structural integrity of aged components. (authors)

Mathew, M.D. [Indira Gandhi Center for Atomic Research, Kalpakkam, Tamil Nadu, 603102 (India); Linga Murty, K. [North Carolina State University, Nuclear Engineering Department, Raleigh, NC 27695-7909 (United States)

2002-07-01T23:59:59.000Z

428

Modeling tip zones to predict the throw and length characteristics of faults  

SciTech Connect

A map of faults in a 60 km{sup 2} area of the southern North Sea has been produced from three-dimensional seismic data. The faults shown on the map obey power-law cumulative-frequency distributions for throw (power-law exponent, D, {approx} 2.7) and length (D {approx} 1.1). Simulations have been carried out to correct for sampling biases in the data and to make predictions of the throw the data and to make predictions of the throw and length scaling characteristics of the faults. The most important bias is caused by poor resolution of the small displacement tip zones of faults. The raw data show considerable scatter in their length: throw ratios, but they more closely fit a linar relationship if a length of 500 m is added to each fault, thereby making up for the zones near the fault tips with throws ({approx} 15 m) below seismic resolution. Further variability in the data may be caused by such geological factors as fault interaction. Tip lengths have been extended to simulate the actual fault pattern in the study area. Maps produced by this procedure can be used to estimate the true connectivity of the fault network. Extending the faults results in greater connectivity than shown by the raw data, which may cause greater compartmentalization of the rock mass. This greater compartmentalization has implications for hydrocarbon exploitation if the faults are sealing. A problem with the model, however, is that it does not deal effectively with the interaction of subparallel, noncoplanar faults. To test the reliability of the procedure, we analyzed exposure-scale faults in Somerset, United Kingdom, where the tips are well constrained. Both length-throw relationships and map-pattern connectivity for the simulated fault networks agree closely with the actual data.

Pickering, G.; Sanderson, D.J.; Bull, J.M. [Univ. of Southampton (United Kingdom)] [and others

1997-01-01T23:59:59.000Z

429

Quaternary faults of the central Rocky Mountains, Colorado: A new seismotectonic evaluation  

SciTech Connect

Quaternary faults in the central Rocky Mountain of CO exhibit normal displacement, are generally parallel to the strike of pre-existing Larmide structures, and typically occur in the hanging walls of Laramide thrust faults. These observations are consistent with models in which Mesozoic thrust faults are being reactivated as normal faults in the contemporary extensional tectonic setting. To assess the seismogenic potential of these faults, the authors evaluated the recency of fault movement and style of deformation via aerial reconnaissance, interpretation of aerial photography and field mapping of selected sites. The 82-km-long Red Rocks-Climarron fault zone shows evidence of late Quaternary displacement and may be capable of producing an M[>=]6.75 earthquake based on its total fault length and inferred fault width. Earthquake hypocenters indicate that the thickness of the seismogence crust in CO is similar to much of the western US (ca. 15 km). In additional to tectonic deformation, numerous faults and lineaments have been identified in the Paradox Basin and along the southern Grand Hogback monocline that are active due to diapiric movement of halite. In particular, active deformation along the Grand Hogback is limited to portions of the structure underlain by a 3-km-deep Pennsylvania halite basin. Because Quaternary deformation along and near these large Laramide structures is due to the movement of halite rather than deep-seated tectonism, the maximum size of a potential earthquake is limited by the down-dip width and lateral extent of fault planes within brittle rocks overlying the halite. The authors infer that the maximum depth of brittle faulting due to diapiric halite flow is 6 km, and the earthquakes larger than M 5 are unlikely to occur on faults associated with the Grand Hogback and salt anticlines of the Paradox Basin. The 1984 Carbondale earthquake swarm (M[<=]3.2) may have been the result of such faulting.

Unruh, J.R.; Noller, J.S.; Lettis, W.R. (William Lettis and Association, Inc., Oakland, CA (United States)); Wong, I.G.; Sawyer, T.L.; Bott, J.D.J. (Woodward-Clyde Federal Services, Oakland, CA (United States))

1993-04-01T23:59:59.000Z

430

Behavior of Repeating Earthquake Sequences in Central California and the Implications for Subsurface Fault Creep  

SciTech Connect

Repeating earthquakes (REs) are sequences of events that have nearly identical waveforms and are interpreted to represent fault asperities driven to failure by loading from aseismic creep on the surrounding fault surface at depth. We investigate the occurrence of these REs along faults in central California to determine which faults exhibit creep and the spatio-temporal distribution of this creep. At the juncture of the San Andreas and southern Calaveras-Paicines faults, both faults as well as a smaller secondary fault, the Quien Sabe fault, are observed to produce REs over the observation period of March 1984-May 2005. REs in this area reflect a heterogeneous creep distribution along the fault plane with significant variations in time. Cumulative slip over the observation period at individual sequence locations is determined to range from 5.5-58.2 cm on the San Andreas fault, 4.8-14.1 cm on the southern Calaveras-Paicines fault, and 4.9-24.8 cm on the Quien Sabe fault. Creep at depth appears to mimic the behaviors seen of creep on the surface in that evidence of steady slip, triggered slip, and episodic slip phenomena are also observed in the RE sequences. For comparison, we investigate the occurrence of REs west of the San Andreas fault within the southern Coast Range. Events within these RE sequences only occurred minutes to weeks apart from each other and then did not repeat again over the observation period, suggesting that REs in this area are not produced by steady aseismic creep of the surrounding fault surface.

Templeton, D C; Nadeau, R; Burgmann, R

2007-07-09T23:59:59.000Z

431

ALS in the News  

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

feed-image feed-image Digg: ALSBerkeleyLab Facebook Page: 208064938929 Flickr: advancedlightsource Twitter: ALSBerkeleyLab YouTube: AdvancedLightSource Home About the ALS ALS in the News ALS in the News Roman Seawater Concrete Holds the Secret to Cutting Carbon Emissions Print Tuesday, 04 June 2013 00:00 An international team led by Paulo Monteiro of the Advanced Light Source and UC Berkeley has analyzed samples of Roman concrete from harbor installations that have survived 2,000 years of chemical attack and wave action, "one of the most durable construction materials on the planet," says UC Berkeley's Marie Jackson, a leading member of the team. Says Monteiro, "It's not that modern concrete isn't good, but manufacturing Portland cement accounts for seven percent of the carbon dioxide that industry puts into the air." The carbon footprint of Roman concrete, made from lime, volcanic ash, and seawater, is much smaller.

432

ALS Beamlines Directory  

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

Beamlines Directory Beamlines Directory ALS Beamlines Directory Print Beamlines, Parameters, Contact Information, and Schedules Download a high-resolution version of the ALS Beamclock. See Beamclock to view the ALS energy-related beamlines beamclock. Beamline Parameters Beamline and endstation technical information is available through the links below. Unless otherwise noted, all beamlines are currently operational. Individual beamline schedules are posted when available. Please contact the responsible beamline scientist for additional schedule information. When calling from off-site, all beamline (BL) phone numbers that begin with a "2" are preceded by 495- (i.e., 495-2014); all others are preceded by 486-. Beamline Number Source Technique/ Group Name Energy Range Beamline Contact Schedule/BL Phone

433

ALS superbend magnet system  

SciTech Connect

The Lawrence Berkeley National Laboratory is preparing to upgrade the Advanced Light Source (ALS) with three superconducting dipoles (Superbends). In this paper we present the final magnet system design which incorporates R&D test results and addresses the ALS operational concerns of alignment, availability, and economy. The design incorporates conduction-cooled Nb-Ti windings and HTS current leads, epoxy-glass suspension straps, and a Gifford-McMahon cryocooler to supply steady state refrigeration. We also present the current status of fabrication and testing.

Zbasnik, J.; Wang, S.T.; Chen, J.Y.; DeVries, G.J.; DeMarco, R.; Fahmie, M.; Geyer, A.; Green, M.A.; Harkins, J.; Henderson, T.; Hinkson, J.; Hoyer, E.H.; Krupnick, J.; Marks, S.; Ottens, F.; Paterson, J.A.; Pipersky, P.; Portmann, G.; Robin, D.A.; Schlueter, R.D.; Steier, C.; Taylor, C.E.; Wahrer, R.

2000-09-15T23:59:59.000Z

434

Teleseismic-Seismic Monitoring At Kilauea Summit Area (Keller, Et Al.,  

Open Energy Info (EERE)

At Kilauea Summit Area (Keller, Et Al., At Kilauea Summit Area (Keller, Et Al., 1979) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Kilauea Summit Area (Keller, Et Al., 1979) Exploration Activity Details Location Kilauea Summit Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date Usefulness useful DOE-funding Unknown Notes Kilauea volcano has high seismicity, most of which is associated with specific fault zones on the volcano and with movement of magma at depth (Koyanagi and Endo, 1971; Koyanagi et al., 1976). Certain groups of earthquakes have been observed at very shallow depths, however, and some of these have been concentrated in a zone that lies near the resistivity anomaly and the center of inflation. The data show that this shallow

435

Field Mapping At Dixie Valley Geothermal Field Area (Smith, Et Al., 2001) |  

Open Energy Info (EERE)

Et Al., 2001) Et Al., 2001) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Dixie Valley Geothermal Field Area (Smith, Et Al., 2001) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Field Mapping Activity Date Usefulness not indicated DOE-funding Unknown References Richard P. Smith, Kenneth W. Wisianz, David D. BlackweIl (2001) Geologic And Geophysical Evidence For Intra-Basin And Footwall Faulting At Dixie Valley, Nevada Retrieved from "http://en.openei.org/w/index.php?title=Field_Mapping_At_Dixie_Valley_Geothermal_Field_Area_(Smith,_Et_Al.,_2001)&oldid=510735" Category: Exploration Activities What links here Related changes Special pages Printable version Permanent link

436

Brambilla, et al. Reply  

E-Print Network (OSTI)

Brambilla, et al. Reply: van Megen and Williams (vMW) question our recent claim that dense colloidal hard spheres enter at large volume fraction \\phi a dynamical regime not observed in earlier work and not described by the mode-coupling theory (MCT) of the glass transition.

Giovanni Brambilla; Djamel El Masri; Matteo Pierno; Ludovic Berthier; Luca Cipelletti; George Petekidis; Andrew B. Schofield

2010-08-27T23:59:59.000Z

437

Systems analysis approach to probabilistic modeling of fault trees  

SciTech Connect

A method of probabilistic modeling of fault tree logic combined with stochastic process theory (Markov modeling) has been developed. Systems are then quantitatively analyzed probabilistically in terms of their failure mechanisms including common cause/common mode effects and time dependent failure and/or repair rate effects that include synergistic and propagational mechanisms. The modeling procedure results in a state vector set of first order, linear, inhomogeneous, differential equations describing the time dependent probabilities of failure described by the fault tree. The solutions of this Failure Mode State Variable (FMSV) model are cumulative probability distribution functions of the system. A method of appropriate synthesis of subsystems to form larger systems is developed and applied to practical nuclear power safety systems.

Bartholomew, R.J.; Qualls, C.R.

1985-01-01T23:59:59.000Z

438

Testing of 3-meter Prototype Fault Current Limiting Cables  

SciTech Connect

Two 3-m long, single-phase cables have been fabricated by Ultera from second generation (2G) superconductor supplied by American Superconductor. The first cable was made with two layers of 2G tape conductor and had a critical current of 5,750 A while the second cable had four layers and a critical current of 8,500 A. AC loss was measured for both cables at ac currents of up to 4 kArms. Ultera performed initial fault current studies of both cables in Denmark with limited currents in the range from 9.1 to 44 kA. Results from these tests will provide a basis for a 25-m long, three-phase, prototype cable to be tested at ORNL early next year and a 300-m long, fault current limiting, superconducting cable to be installed in a ConEd substation in New York City.

Gouge, Michael J [ORNL] [ORNL; Duckworth, Robert C [ORNL] [ORNL; Demko, Jonathan A [ORNL] [ORNL; Rey, Christopher M [ORNL] [ORNL; Thompson, James R [ORNL] [ORNL; Lindsay, David T [ORNL] [ORNL; Tolbert, Jerry Carlton [ORNL] [ORNL; Willen, Dag [Ultera] [Ultera; Lentge, Heidi [Ultera] [Ultera; Thidemann, Carsten [Ultera] [Ultera; Carter, Bill [AMSC] [AMSC

2009-01-01T23:59:59.000Z

439

9 - Superconducting fault current limiters and power cables  

Science Journals Connector (OSTI)

Abstract: This chapter addresses the technology of superconducting power cables and superconducting fault current limiters (FCL). The first part of the chapter is a general summary of the electric power grid. This sets the stage for a discussion of the historical development of superconducting AC and DC cables, which begins with low temperature superconductor (LTS)-based systems. It then describes the present status of superconducting cable technology and summarizes some of the major programs around the world. Whereas power cables may be thought of as a replacement for conventional power system components, \\{FCLs\\} and fault current controllers (FCC) have no conventional equivalent in the power grid. Several conceptually different FCL designs are described. The status of their development and installation on the power grid are described.

W. Hassenzahl

2013-01-01T23:59:59.000Z

440

Detailed study of DFIG-based wind turbines to overcome the most severe grid faults  

Science Journals Connector (OSTI)

Abstract This paper studies the effects of voltage sags caused by faults on doubly-fed induction generators to overcome grid faults. A wide range of sag duration and depth values is considered. It is observed that sag duration influence is periodical. Sag effects depend on duration and depth and on the fault-clearing process as well. Two approaches of the model are compared: the most accurate approach, discrete sag, considers that the fault is cleared in the successive natural fault-current zeros of affected phases, leading to a voltage recovery in several steps; the least accurate approach, abrupt sag, considers that the fault is cleared instantaneously in all affected phases, leading to a one-step voltage recovery. Comparison between both sag models reveals that the fault-clearing process smoothes sag effects. The study assumes that the rotor-side converter can keep constant the transformed rotor current in the synchronous reference frame, thus providing insights into wind turbine fault ride-through capability. The voltage limit of the rotor-side converter is considered to show the situations where the rotor current can be controlled. Finally, a table and a 3D figure summarizing the effects of the most severe grid faults on the rotor-side converter to overcome the most severe faults are provided.

Alejandro Rolán; Joaquín Pedra; Felipe Córcoles

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "al fault ball" 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

Determination of the Nonlethal Margin Inside the Visible 'Ice-Ball' During Percutaneous Cryoablation of Renal Tissue  

SciTech Connect

Objective. The study was designed to determine the distance between the visible 'ice-ball' and the lethal temperature isotherm for normal renal tissue during cryoablation. Methods. The Animal Care Committee approved the study. Nine adult swine were used: three to determine the optimum tissue stain and six to test the hypotheses. They were anesthetized and the left renal artery was catheterized under fluoroscopy. Under MR guidance, the kidney was ablated and (at end of a complete ablation) the nonfrozen renal tissue (surrounding the 'ice-ball') was stained via renal artery catheter. Kidneys were explanted and sent for slide preparation and examination. From each slide, we measured the maximum, minimum, and an in-between distance from the stained to the lethal tissue boundaries (margin). We examined each slide for evidence of 'heat pump' effect. Results. A total of 126 measurements of the margin (visible 'ice-ball'-lethal margin) were made. These measurements were obtained from 29 slides prepared from the 6 test animals. Mean width was 0.75 {+-} 0.44 mm (maximum 1.15 {+-} 0.51 mm). It was found to increase adjacent to large blood vessels. No 'heat pump' effect was noted within the lethal zone. Data are limited to normal swine renal tissue. Conclusions. Considering the effects of the 'heat pump' phenomenon for normal renal tissue, the margin was measured to be 1.15 {+-} 0.51 mm. To approximate the efficacy of the 'gold standard' (partial nephrectomy, {approx}98 %), a minimum margin of 3 mm is recommended (3 Multiplication-Sign SD). Given these assumptions and extrapolating for renal cancer, which reportedly is more cryoresistant with a lethal temperature of -40 Degree-Sign C, the recommended margin is 6 mm.

Georgiades, Christos, E-mail: g_christos@hotmail.com [Johns Hopkins University, Department of Vascular and Interventional Radiology, Interventional Radiology Center (United States); Rodriguez, Ronald, E-mail: rrodrig@jhmi.edu [Johns Hopkins University, Department of Urology (United States); Azene, Ezana, E-mail: eazene1@jhmi.edu; Weiss, Clifford, E-mail: cweiss@jhmi.edu [Johns Hopkins University, Department of Vascular and Interventional Radiology, Interventional Radiology Center (United States); Chaux, Alcides, E-mail: achaux1@jhmi.edu; Gonzalez-Roibon, Nilda, E-mail: ngonzal6@jhmi.edu; Netto, George, E-mail: gnetto1@jhmi.edu [Johns Hopkins University, Department of Urologic Pathology (United States)

2013-06-15T23:59:59.000Z

442

Fault Detection, Diagnostics and Optimmization using BIG Data Analytics  

E-Print Network (OSTI)

111, Duke Street, Suite 3800 Montreal (Quebec) H3C 2M1 CANADA Tel : +1-514-866-5159 Fax : +1-514-866-2047 Fault Detection, diagnostics and optimization using BIG data analytics Presenter: IFCS Inc., Quebec, CANADA The past decade has seen... Joule AnalytiX management framework Unified Collector ? Syslog Events/SNMP ? Diagnostic Agent for Building Operations ? Performance Data ? System Health Data ? Feedback from BMS ? Johnson Controls ? Delta Controls ? Trane ? Siemens...

Bonifay, X.

2013-01-01T23:59:59.000Z

443

An expert system for fault detection and diagnosis  

E-Print Network (OSTI)

Major Subject: Electrical Engineering AN EXPERT SYSTEM FOR I AIJLT DETECTION AND DIAGNOSIS A Thesis by PREDRAG SPASOJEVIC Approv d as to style and content by; (, . I Mladen Kezunovic (Chair of ommitt R. Don Russell Ali Abur (Member) / /$t...:l~. , ~ 1 /z Karan L. Watson (Member) Wil iam M. Li y (Member . W. Howze (Head of Department) August 1992 ABSTRACT An Expert System 1' or Fault Detection and Diagnosis. (August 1992) Preclrag Spasojevic, Dipl. Ing. , University of Sarajevo Chair...

Spasojevic, Predrag

1992-01-01T23:59:59.000Z

444

Experimental characterization of faults on low-voltage systems  

E-Print Network (OSTI)

INTRODUCTION . Page II EXISTING DETECTION SCHEMES AND RESEARCH OBJECTIVES 8 Existing Detection Schemes Research Objectives III THEORY OF ARCS AND ARCING FAULTS 8 15 17 Formation of Spark Arc Chracteristics 17 18 IV FIELD TEST INSTRUMENTATION... EQUIPMENT . , V DESCRIPTION OF TESTS VI FIELD TESTS - GENERAL . . 30 VII DATA ANALYSIS, OBSERVATION AND SUMMARY . . 43 Time Domain Analysis . Frequency Domain Analysis Comparison with 15 kV Systems . Summary of Results . 44 56 67 72 REFERENCES...

Ahmed, Jubayer

1992-01-01T23:59:59.000Z

445

Small-scale faulting in the Upper Cretaceous of the Groningen block (The Netherlands): 3D seismic interpretation, fault plane analysis and regional paleostress  

Science Journals Connector (OSTI)

Over the last years, field-based studies have shown that fault surfaces can exhibit a considerable self-affine topography. It is reasonable to assume that similar undulations are also present in fault interpretations from 3D reflection seismic data, however both the interpretation uncertainty and geophysical resolution limits hinder their analysis. This study analyses a set of small-scale, non-reactivated faults in the Upper Cretaceous Chalk Group (Upper Ommelanden Formation) of the NW-part of the Groningen Block, the Netherlands, in a high quality Pre Stack Depth Migrated 3D seismic data set. The studied faults are fully contained inside the Chalk Group, in an area located between the major tectonic-bounding faults of the NW Groningen Block. Over 200 faults, with offsets in the order of 30–50 m, were interpreted across an area of ca. 150 km2, showing a clear preferential orientation for strike, dip and dip-direction. Detailed interpretations and 3D fault plane analyses show undulations on the fault plane. We show that these undulations are not an interpretation or gridding artefact, and interpret these to indicate direction of fault slip. These results were used to calculate a paleostress tensor, using all faults to calculate a single stress tensor for the entire study area by Numerical Dynamic Analysis. Based on the orientation, position and a thickness analysis, it is interpreted that these faults formed due to the tectonic reactivation of salt structures in the Latest Cretaceous. The calculated paleostress state shows a general NW–SE-extension, with a vertical maximum principle stress, and a stress ratio of about 0.3, indicating that the studied faults are not the result of dewatering. This interpretation agrees both with a nearby salt-tectonic reconstruction, as well as field-based paleostress results from the UK, Belgium and France. A first look at other surveys from the Dutch sector indicates that similar faults are present in other areas, with different orientations. We propose that a dedicated analysis of these faults across on- and offshore Europe would allow extending the stress map of the Late Cretaceous into areas where the Chalk is not outcropping.

Heijn van Gent; Stefan Back; Janos L. Urai; Peter Kukla

2010-01-01T23:59:59.000Z

446

Eine analytische Brennstoffzelle als Alkoholsensor  

Science Journals Connector (OSTI)

Es wird eine analytische Brennstoffzelle zur quantitativen Bestimmung von Alkoholen beschrieben. Als...

H. Huck

447

Smith et al Supporting Information  

E-Print Network (OSTI)

Smith et al 1 Supporting Information for Smith et al. 2006, PLoS Computational Biology 2:e161-hyperpallium apicale; HF-hippocampal formation, and M-mesopallium. #12;Smith et al 2 FigureS2,nolinkswerefoundbetweenelectrodesindifferentbirds,andnolinkswerefoundintothesoundstimulusvariable. CombinedAnalysisofAllBirds'ElectrodesPlusSound #12;Smith et al 3 Analysis of Data from Subsections

Jarvis, Erich D.

448

Rotating machinery dynamics simulation. I. Rigid systems with ball bearing nonlinearities and outer ring ovality under rotating unbalance excitation  

Science Journals Connector (OSTI)

The radial clearance in rolling bearing systems required to compensate for dimensional changes associated with thermal expansion of the various parts during operation may cause dimensional attrition and comprise bearing life if unloaded operation occurs and balls skid [D. Childs and D. Moyer ASME J. Eng. Gas Turb. Power 107 152–159 (1985)]. Also it can cause jumps in the response to unbalance excitation. These undesirable effects may be eliminated by introducing two or more loops into one of the bearing races so that at least two points of the ring circumference provide a positive zero clearance [D. Childs Handbook of Rotordynamics edited by F. Ehrich (McGraw-Hill NY 1992)]. The deviation of the outer ring with two loops known as ovality is one of the bearing distributed defects. Although this class of imperfections has received much work none of the available studies has simulated the effect of the outer ring ovality on the dynamic behavior of rotating machinery under rotating unbalance with consideration of ball bearing nonlinearities shaft elasticity and speed of rotation. To fill this gap the equations of motion of a rotor–ball bearing system are formulated using finite-elements (FE) discretization and Lagrange’s equations. The analyses are specialized to a rigid-rotor system by retaining the rigid body modes only in the FE solution. Samples of the results are presented in both time domain and frequency domain for a system with and without outer ring ovality. It is found that with ideal bearings (no ovality) the vibration spectrum is qualitatively and quantitatively the same in both the horizontal and vertical directions. When the ring ovality is introduced however the spectrum in both orthogonal planes is no longer similar. And magnitude of the bearing load has increased in the form of repeated random impacts between balls and rings in the horizontal direction (direction of maximum clearance) compared to a continuous contact along the vertical direction (direction of positive zero clearance). This underlines the importance of the vibration measuring probe’s direction with respect to the outer ring axes to capture impact-induced vibrations. Moreover when the harmonic excitation is increased for a system with ideal bearings the spectral peaks above forcing frequency have shifted to a higher-frequency region indicating some sort of a hard spring mechanism inherent in the system. Another observation is that for the same external excitation vibration amplitude at forcing frequency in the bearing force spectrum is the same for systems with or without outer ring ovality.

Fawzi M. A. El-Saeidy

2000-01-01T23:59:59.000Z

449

Automatic fault detection on BIPV systems without solar irradiation data  

E-Print Network (OSTI)

BIPV systems are small PV generation units spread out over the territory, and whose characteristics are very diverse. This makes difficult a cost-effective procedure for monitoring, fault detection, performance analyses, operation and maintenance. As a result, many problems affecting BIPV systems go undetected. In order to carry out effective automatic fault detection procedures, we need a performance indicator that is reliable and that can be applied on many PV systems at a very low cost. The existing approaches for analyzing the performance of PV systems are often based on the Performance Ratio (PR), whose accuracy depends on good solar irradiation data, which in turn can be very difficult to obtain or cost-prohibitive for the BIPV owner. We present an alternative fault detection procedure based on a performance indicator that can be constructed on the sole basis of the energy production data measured at the BIPV systems. This procedure does not require the input of operating conditions data, such as solar ...

Leloux, Jonathan; Luna, Alberto; Desportes, Adrien

2014-01-01T23:59:59.000Z

450

Detachment Faulting and Geothermal Resources - An Innovative Integrated  

Open Energy Info (EERE)

Detachment Faulting and Geothermal Resources - An Innovative Integrated Detachment Faulting and Geothermal Resources - An Innovative Integrated Geological and Geophysical Investigation in Fish Lake Valley, Nevada Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Detachment Faulting and Geothermal Resources - An Innovative Integrated Geological and Geophysical Investigation in Fish Lake Valley, Nevada Project Type / Topic 1 Recovery Act: Geothermal Technologies Program Project Type / Topic 2 Validation of Innovative Exploration Technologies Project Description This program is designed to provide valuable new subsurface information about one of the Nation's arguably most promising high-temperature geothermal targets. Until now, the Emigrant Geothermal Prospect has been tested by only shallow and relatively shallow thermal-gradient boreholes and a small number of exploration wells, all of which have lacked any detailed 2-D or 3-D structural context. The applicants propose to conduct an innovative integration of detailed 2- D and 3-D structural reconstructions (structural mapping and reflection/refraction source seismology integrated with available data).

451

Comment on arXiv:1104.2019, "Relative locality and the soccer ball problem," by Amelino-Camelia et al  

E-Print Network (OSTI)

It is explained why the argument in arXiv:1104.2019 does not answer the question how to describe multi-particle states in models with a deformed Lorentz-symmetry in momentum space.

Sabine Hossenfelder

2012-02-18T23:59:59.000Z

452

A Circuit Level Fault Model for Resistive Bridges ZHUO LI, XIANG LU, WANGQI QIU, WEIPING SHI and D. M. H. WALKER  

E-Print Network (OSTI)

A Circuit Level Fault Model for Resistive Bridges ZHUO LI, XIANG LU, WANGQI QIU, WEIPING SHI and D. M. H. WALKER Texas A&M University Delay faults are an increasingly important test challenge. Modeling bridge faults as delay faults helps delay tests to detect more bridge faults. Traditional bridge

Walker, Duncan M. "Hank"

453

Modeling fault-zone guided waves of microearthquakes in a geothermal  

Open Energy Info (EERE)

fault-zone guided waves of microearthquakes in a geothermal fault-zone guided waves of microearthquakes in a geothermal reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Modeling fault-zone guided waves of microearthquakes in a geothermal reservoir Details Activities (1) Areas (1) Regions (0) Abstract: Fault-zone guided waves have been identified in microearthquake seismograms recorded at the Coso Geothermal Field, California. The observed guided waves have particle motions and propagation group velocities similar to Rayleigh wave modes. A numerical method has been employed to simulate the guided-wave propagation through the fault zone. By comparing observed and synthetic waveforms the fault-zone width and its P- and S-wave velocity structure have been estimated. It is suggested here that the identification

454

High-Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley  

Open Energy Info (EERE)

Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Geothermal Field, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: High-Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Geothermal Field, Nevada Abstract N/A Author V. J. S. Grauch Published U.S. Geological Survey, 2002 Report Number 02-384 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for High-Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Geothermal Field, Nevada Citation V. J. S. Grauch. 2002. High-Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Geothermal Field, Nevada. (!) : U.S. Geological Survey. Report No.: 02-384. Retrieved from "http://en.openei.org/w/index.php?title=High-Resolution_Aeromagnetic_Survey_to_Image_Shallow_Faults,_Dixie_Valley_Geothermal_Field,_Nevada&oldid=682601"

455

A High-Resolution Aeromagnetic Survey to Identify Buried Faults at Dixie Valley, Nevada  

SciTech Connect

Preliminary results from a high-resolution aeromagnetic survey (200m line spacing) acquired in Dixie Valley early in 2002 provide confirmation of intra-basin faulting based on subtle surface indications. In addition the data allow identification of the locations and trends of many faults that have not been recognized at the surface, and provide a picture of intrabasin faulting patterns not possible using other techniques. The data reveal a suite of northeasterly-trending curving and branching faults that surround a relatively coherent block in the area of Humboldt Salt Marsh, the deepest part of the basin. The producing reservoir occurs at the north end of this coherent block, where rampart faults from the northwest side of the valley merge with anthithetic faults from the central and southeast parts of the valley.

Smith, Richard Paul; Grauch, V. J. S.; Blackwell, David D.

2002-09-01T23:59:59.000Z

456

Interpretive geophysical fault map across the central block of Yucca Mountain, Nevada  

SciTech Connect

Geophysical data collected along 29 traverses across the central block of Yucca Mountain in southwest Nevada reveal anomalies associated with known fault sand indicate a number of possible concealed faults beneath the eastern flank of Yucca Mountain. Geophysical interpretations indicate that Midway Valley is characterized by several known and previously unknown faults, that the existence of the Yucca Wash fault is equivocal, and that the central part of the eastern flank of Yucca Mountain is characterized by numerous low-amplitude anomalies that probably reflect numerous small-scale faults. Gravity and magnetic data also reveal several large-amplitude anomalies that reflect larger-scale faulting along the margins of the central block.

Ponce, D.A.

1996-12-31T23:59:59.000Z

457

An integrated technique for fault location and section identification in distribution systems  

Science Journals Connector (OSTI)

Abstract This paper proposes an integrated impedance and transient-based formulation for fault location in distribution systems. The technique uses an extended apparent impedance analysis in order to estimate the fault distance, taking into account the unbalanced operation, intermediate loads, laterals, and time-varying load profile of distribution systems. The fault distance information is used in calculating characteristic frequencies associated to each possible fault location. A transient analysis is proposed to evaluate the spectral content of the fault-generated traveling wave, thus identifying its most significant frequency components. Based on the time–frequency correlation it is possible to eliminate the multiple estimates obtained from the impedance-based method, thus resulting in a single fault location. Aiming to verify the application of the proposed methodology, simulations were carried out in the ATP/EMTP Software considering a real distribution feeder with 3472 buses.

D.S. Gazzana; G.D. Ferreira; A.S. Bretas; A.L. Bettiol; A. Carniato; L.F.N. Passos; A.H. Ferreira; J.E.M. Silva

2014-01-01T23:59:59.000Z

458

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

SciTech Connect

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

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

1994-08-01T23:59:59.000Z

459

ALS Beamlines Directory  

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

Beamlines Directory Print Beamlines Directory Print Beamlines, Parameters, Contact Information, and Schedules Download a high-resolution version of the ALS Beamclock. See Beamclock to view the ALS energy-related beamlines beamclock. Beamline Parameters Beamline and endstation technical information is available through the links below. Unless otherwise noted, all beamlines are currently operational. Individual beamline schedules are posted when available. Please contact the responsible beamline scientist for additional schedule information. When calling from off-site, all beamline (BL) phone numbers that begin with a "2" are preceded by 495- (i.e., 495-2014); all others are preceded by 486-. Beamline Number Source Technique/ Group Name Energy Range Beamline Contact Schedule/BL Phone

460

ALS User Meeting Archives  

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

User Meeting Archives Print User Meeting Archives Print Past User Meeting Agendas, Workshops, and Awards Year Agenda Workshops David A. Shirley (Science) Klaus Halbach (Instrumentation) Tim Renner (Service) 2012 2012 User Meeting Agenda 2012 User Meeting Workshops 2012 ALS User Meeting Awards Carl Percival, Dudley Shallcross, Craig Taatjes and David Osborn (Sandia), for making the first direct measurements of the reactions of Criegee intermediates, and showing that their impact on tropospheric chemistry and climate may be substantially greater than previously assumed. 2012 ALS User Meeting Awards Jeff Dickert and Simon Morton of Berkeley Lab's Physical Biosciences Division for the invention and implementation of the Compact Variable Collimator (CVC), which has led to a dramatic increase in productivity of protein crystallography.

Note: This page contains sample records for the topic "al fault ball" 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

ALS Beamlines Directory  

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

Beamlines Directory Print Beamlines Directory Print Beamlines, Parameters, Contact Information, and Schedules Download a high-resolution version of the ALS Beamclock. See Beamclock to view the ALS energy-related beamlines beamclock. Beamline Parameters Beamline and endstation technical information is available through the links below. Unless otherwise noted, all beamlines are currently operational. Individual beamline schedules are posted when available. Please contact the responsible beamline scientist for additional schedule information. When calling from off-site, all beamline (BL) phone numbers that begin with a "2" are preceded by 495- (i.e., 495-2014); all others are preceded by 486-. Beamline Number Source Technique/ Group Name Energy Range Beamline Contact Schedule/BL Phone

462

Distributed Bayesian Algorithms for Fault-Tolerant Event Region Detection in Wireless Sensor Networks  

E-Print Network (OSTI)

We propose a distributed solution for a canonical task in wireless sensor networks---the binary detection of interesting environmental events. We explicitly take into account the possibility of sensor measurement faults and develop a distributed Bayesian algorithm for detecting and correcting such faults. Theoretical analysis and simulation results show that 85-95 percent of faults can be corrected using this algorithm, even when as many as 10 percent of the nodes are faulty.

Bhaskar Krishnamachari; Sitharama Iyengar

2004-01-01T23:59:59.000Z

463

Slip rate variations on normal faults during glacial–interglacial changes in surface loads  

Science Journals Connector (OSTI)

... Here we use finite-element models to investigate why four parallel normal faults—the Wasatch, West Valley, Oquirrh and Stansbury faults in the eastern Basin and Range Province, Utah—have experienced ... We now test whether the Late Pleistocene/Holocene increase in slip rates of the Wasatch, West Valley, Oquirrh and Stansbury normal faults may be due to isostatic rebound caused by the ...

Ralf Hetzel; Andrea Hampel

2005-05-05T23:59:59.000Z

464

Structural character of the northern segment of the Paintbrush Canyon fault, Yucca Mountain, Nevada  

SciTech Connect

Detailed mapping of exposed features along the northern part of the Paintbrush Canyon fault was initiated to aid in construction of the computer-assisted three-dimensional lithostratigraphic model of Yucca Mountain, to contribute to kinematic reconstruction of the tectonic history of the Paintbrush Canyon fault, and to assist in the interpretation of geophysical data from Midway Valley. Yucca Mountain is segmented into relatively intact blocks of east-dipping Miocene volcanic strata, bounded by north-striking, west-dipping high-angle normal faults. The Paintbrush Canyon fault, representing the easternmost block-bounding normal fault, separates Fran Ridge from Midway Valley and continues northward across Yucca Wash to at least the southern margin of the Timber Mountain Caldera complex. South of Yucca Wash, the Paintbrush Canyon Fault is largely concealed beneath thick Quaternary deposits. Bedrock exposures to the north reveal a complex fault, zone, displaying local north- and west-trending grabens, and rhombic pull-apart features. The fault scarp, discontinuously exposed along a mapped length of 8 km north of Yucca Wash, dips westward by 41{degrees} to 74{degrees}. Maximum vertical offset of the Rhyolite of Comb Peak along the fault measures about 210 m in Paintbrush Canyon and, on the basis of drill hole information, vertical offset of the Topopoah Spring Tuff is about 360 m near the northern part of Fran Ridge. Observed displacement along the fault in Paintbrush Canyon is down to the west with a component of left-lateral oblique slip. Unlike previously proposed tectonic models, strata adjacent to the fault dip to the east. Quaternary deposits do not appear displaced along the fault scarp north of Yucca Wash, but are displaced in trenches south of Yucca Wash.

Dickerson, R.P. [Science Applications International Corp., Golden, CO (United States); Spengler, R.W. [Geological Survey, Denver, CO (United States)

1994-12-31T23:59:59.000Z

465

Impact of high energy ball milling on the nanostructure of magnetite–graphite and magnetite–graphite–molybdenum disulphide blends  

SciTech Connect

Different, partly complementary and partly redundant characterization methods were applied to study the transition of magnetite, graphite and MoS{sub 2} powders to mechanically alloyed nanostructures. The applied methods were: Transmission electron microscopy (TEM), Mössbauer spectroscopy (MS), Raman spectroscopy (RS), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The main objective was to prepare a model material providing the essential features of a typical tribofilm forming during automotive braking, and to assess the impact of different constituents on sliding behaviour and friction level. Irrespective of the initial grain size, the raw materials were transferred to a nanocrystalline structure and mixed on a nanoscopic scale during high energy ball milling. Whereas magnetite remained almost unchanged, graphite and molybdenum disulphide were transformed to a nanocrystalline and highly disordered structure. The observed increase of the coefficient of friction was attributed to a loss of lubricity of the latter ingredient due to this transformation and subsequent oxidation. - Highlights: • Characterization of microstructural changes induced by high energy ball milling • Assessment of the potential of different characterization methods • Impact of mechanical alloying on tribological performance revealed by tests • Preparation of an artificial third body resembling the one formed during braking.

Österle, W., E-mail: Werner.oesterle@bam.de [BAM Federal Institute for Materials Research and Testing, 12200 Berlin (Germany); Orts-Gil, G.; Gross, T.; Deutsch, C. [BAM Federal Institute for Materials Research and Testing, 12200 Berlin (Germany); Hinrichs, R. [Instituto de Geociências, UFRGS, P.O. Box 15001, 91501-970 Porto Alegre (Brazil); Vasconcellos, M.A.Z. [Instituto de Física, UFRGS, P.O. Box 15051, 91501-970 Porto Alegre (Brazil); Zoz, H.; Yigit, D.; Sun, X. [Zoz Group, 57482 Wenden (Germany)

2013-12-15T23:59:59.000Z

466

Mechanical alloying of Si and Ge in a planetary ball mill: Milling parameters and microscopic evolution of alloy formation  

SciTech Connect

The external parameters geometry and frequency of a planetary ball mill were adjusted in order to minimize the duration of mechanically induced Si-Ge alloy formation. Experimental results were compared with theoretical calculations on impact energies and milling power. It was found that a planetary ball mill with a ratio of the planetary to the system wheel`s frequency of {minus}3 delivers the best milling performance for vial sizes between 0.2 and 0.33 that of the system wheel size. Microstructural investigations on powder compacts revealed that a solid state diffusion mechanism of Ge into the harder Si seems to be the responsible process for realizing a homogeneous Si-Ge alloy. Crystallite sizes of the processed powders were 30 nm. The knowledge of the influence of external milling parameters on the comminution and alloying behavior of substances and the resulting internal structure of the processed ingots may help in a future correlation between thermoelectrical properties and microstructure. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

Schilz, J.; Pixius, K.; Amend, W. [Institute of Materials Research, German Aerospace Research Establishment (DLR), Linder Hoehe, 51147 Koehn (Germany); Plate, M.; Meyer, H. [Retsch Co., Rheinische Str. 36, 42781 Haan (Germany)

1994-08-10T23:59:59.000Z

467

Data Acquisition-Manipulation At San Jacinto Fault Geothermal Area (1982) |  

Open Energy Info (EERE)

Fault Geothermal Area (1982) Fault Geothermal Area (1982) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Data Acquisition-Manipulation At San Jacinto Fault Geothermal Area (1982) Exploration Activity Details Location San Jacinto Fault Geothermal Area Exploration Technique Data Acquisition-Manipulation Activity Date 1982 Usefulness useful DOE-funding Unknown Exploration Basis Develop parameters to identify geothermal region Notes Statistical methods are outlined to separate spatially, temporally, and magnitude-dependent portions of both the random and non-random components of the seismicity. The methodology employed compares the seismicity distributions with a generalized Poisson distribution. Temporally related events are identified by the distribution of the interoccurrence times.

468

E-Print Network 3.0 - automatical adaptive fault Sample Search...  

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

Abstract. In robotics, exogenous fault detection is the process ... Source: Birattari, Mauro - Computer and Decision Engineering Department, Universit Libre de Bruxelles; Libre...

469

E-Print Network 3.0 - adaptive fault detection Sample Search...  

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

through which one robot detects faults... that occur in other, ... Source: Birattari, Mauro - Computer and Decision Engineering Department, Universit Libre de Bruxelles; Libre...

470

E-Print Network 3.0 - active fault detection Sample Search Results  

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

the adjudged or hypothesized cause... of an error. A fault is active ... Source: Powell, David - Laboratoire d'Analyse et d'Architecture des Systmes du CNRS Collection:...

471

Critical behaviour and the evolution of fault strength during earthquake cycles  

Science Journals Connector (OSTI)

... the surrounding fault area. As this area accumulates further slip, it will strengthen and roughen as asperities are selected for. d, Cumulative slip for 10 smaller ‘aftershocks’. ...

Moritz Heimpel

1997-08-28T23:59:59.000Z

472

E-Print Network 3.0 - algorithmic fault tree Sample Search Results  

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

Computer Technologies and Information Sciences 13 A Methodology for Stochastic Fault Simulation in VLSI Processor Architectures Christian J. Hescott, Drew C. Ness, David J....

473

E-Print Network 3.0 - automated fault detection Sample Search...  

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

Computer Science, Massachusetts Institute of Technology (MIT) Collection: Engineering 13 Modeling Consumer-Perceived Web Application Fault Severities for Testing Summary: a fully...

474

FAULT DETECTION IN NUCLEAR POWER PLANTS COMPONENTS BY A COMBINATION OF STATISTICAL METHODS  

E-Print Network (OSTI)

FAULT DETECTION IN NUCLEAR POWER PLANTS COMPONENTS BY A COMBINATION OF STATISTICAL METHODS Independent Component Analysis nc Normal conditions NPP Nuclear Power Plant PCA Principal Component Analysis

Paris-Sud XI, Université de

475

SciTech Connect: Development of Asset Fault Signatures for Prognostic...  

Office of Scientific and Technical Information (OSTI)

signatures to assess the health status of generator step-up generators and emergency diesel generators in nuclear power plants. Asset fault signatures describe the distinctive...

476

C-testability of a ripple carry adder under multiple faults  

E-Print Network (OSTI)

. Fault Types IV FAULT SIMULATION AND EXPERIMENT . A. Physical Line Fault Simulation . 1. Layout 2. Simulation B. Functional Fault Simulation and Experiment . 1. Probability of Un-detection 2. Efficiency of the Test Vectors and Reduced Test V...'hey proposed a, shortened near-minimal set of test vectors for an ILA under SCFM. Further improvements to the problem of testing ILAs under MCFM were pro- vided by Cheng and Patel in [2]. This paper derives the necessary and sufficient conditions of a...

Bommena, Manoher V.

2012-06-07T23:59:59.000Z

477

Fault Detection and Diagnosis for Brine to Water Heat Pump Systems.  

E-Print Network (OSTI)

?? This research project is part of a wider project called Smart Fault Detection and Diagnosis for HeatPump Systems currently under development by the Royal… (more)

Vecchio, Daniel

2014-01-01T23:59:59.000Z

478

Power System Feedback from High-Tc Superconductor Shielded Core Fault Current Limiter  

Science Journals Connector (OSTI)

The shielded core fault current limiter is attractive with high critical temperature superconductors. ... acts during normal operation as an ideally shorted current transformer; the secondary superconducting loop...

J. Gerhold

1998-01-01T23:59:59.000Z

479

Stepover or Relay Ramp in Normal Fault Zones | Open Energy Information  

Open Energy Info (EERE)

Multiple intersections between the overlapping fault strands results in increased fracture density that enhances hydrothermal fluid flow. Other definitions:Wikipedia Reegle...

480

Wind Power Plant Enhancement with a Fault-Current Limiter: Preprint  

SciTech Connect

This paper investigates the capability of a saturable core fault-current limiter to limit the short circuit current of different types of wind turbine generators.

Muljadi, E.; Gevorgian, V.; DeLaRosa, F.

2011-03-01T23:59:59.000Z

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


481

Novel Coupled Thermochronometric and Geochemical Investigation of Blind Geothermal Resources in Fault-Controlled Dilational Corners  

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

Novel Coupled Thermochronometric and Geochemical Investigation of Blind Geothermal Resources in Fault-Controlled Dilational Corners presentation at the April 2013 peer review meeting held in Denver, Colorado.

482

A History of Research in Fault Tolerant Computing at SRI International  

Science Journals Connector (OSTI)

This paper offers a history of the research in fault-tolerant computing at the Computer Science Laboratory of SRI International. This research program, one of several...

Jack Goldberg

1987-01-01T23:59:59.000Z

483

Fault-Based Attack of RSA Authentication Andrea Pellegrini, Valeria Bertacco and Todd Austin  

E-Print Network (OSTI)

a straightforward design architecture that en- tails a small silicon footprint and low-power profile. Our research enviromental manipulations. Our fault-based attack can be succ

Austin, Todd M.

484

Coordinated Fault-Tolerance for High-Performance Computing Final Project Report  

SciTech Connect

With the Coordinated Infrastructure for Fault Tolerance Systems (CIFTS, as the original project came to be called) project, our aim has been to understand and tackle the following broad research questions, the answers to which will help the HEC community analyze and shape the direction of research in the field of fault tolerance and resiliency on future high-end leadership systems. #15; Will availability of global fault information, obtained by fault information exchange between the different HEC software on a system, allow individual system software to better detect, diagnose, and adaptively respond to faults? If fault-awareness is raised throughout the system through fault information exchange, is it possible to get all system software working together to provide a more comprehensive end-to-end fault management on the system? #15; What are the missing fault-tolerance features that widely used HEC system software lacks today that would inhibit such software from taking advantage of systemwide global fault information? #15; What are the practical limitations of a systemwide approach for end-to-end fault management based on fault awareness and coordination? #15; What mechanisms, tools, and technologies are needed to bring about fault awareness and coordination of responses on a leadership-class system? #15; What standards, outreach, and community interaction are needed for adoption of the concept of fault awareness and coordination for fault management on future systems? Keeping our overall objectives in mind, the CIFTS team has taken a parallel fourfold approach. #15; Our central goal was to design and implement a light-weight, scalable infrastructure with a simple, standardized interface to allow communication of fault-related information through the system and facilitate coordinated responses. This work led to the development of the Fault Tolerance Backplane (FTB) publish-subscribe API specification, together with a reference implementation and several experimental implementations on top of existing publish-subscribe tools. #15; We enhanced the intrinsic fault tolerance capabilities representative implementations of a variety of key HPC software subsystems and integrated them with the FTB. Targeting software subsystems included: MPI communication libraries, checkpoint/restart libraries, resource managers and job schedulers, and system monitoring tools. #15; Leveraging the aforementioned infrastructure, as well as developing and utilizing additional tools, we have examined issues associated with expanded, end-to-end fault response from both system and application viewpoints. From the standpoint of system operations, we have investigated log and root cause analysis, anomaly detection and fault prediction, and generalized notification mechanisms. Our applications work has included libraries for fault-tolerance linear algebra, application frameworks for coupled multiphysics applications, and external frameworks to support the monitoring and response for general applications. #15; Our final goal was to engage the high-end computing community to increase awareness of tools and issues around coordinated end-to-end fault management.

Panda, Dhabaleswar Kumar [The Ohio State University; Beckman, Pete

2011-07-01T23:59:59.000Z

485

Numerical modeling of gas migration into and through faulted sand reservoirs in Pabst Field (Main Pass East Block 259), northern Gulf of Mexico  

E-Print Network (OSTI)

The further exploration and development of Pabst Gas Field with faulted sand reservoirs require an understanding of the properties and roles of faults, particularly Low Throw near Vertical Faults (LTNVFs), in gas migration and accumulation at a...

Li, Yuqian

2006-08-16T23:59:59.000Z

486

Microstructural characterization of high-manganese austenitic steels with different stacking fault energies  

SciTech Connect

Microstructures of tensile-deformed high-manganese austenitic steels exhibiting twinning-induced plasticity were analyzed by electron backscatter diffraction pattern observation and X-ray diffraction measurement to examine the influence of differences in their stacking fault energies on twinning activity during deformation. The steel specimen with the low stacking fault energy of 15 mJ/m{sup 2} had a microstructure with a high population of mechanical twins than the steel specimen with the high stacking fault energy (25 mJ/m{sup 2}). The <111> and <100> fibers developed along the tensile axis, and mechanical twinning occurred preferentially in the <111> fiber. The Schmid factors for slip and twinning deformations can explain the origin of higher twinning activity in the <111> fiber. However, the high stacking fault energy suppresses the twinning activity even in the <111> fiber. A line profile analysis based on the X-ray diffraction data revealed the relationship between the characteristics of the deformed microstructures and the stacking fault energies of the steel specimens. Although the variation in dislocation density with the tensile deformation is not affected by the stacking fault energies, the effect of the stacking fault energies on the crystallite size refinement becomes significant with a decrease in the stacking fault energies. Moreover, the stacking fault probability, which was estimated from a peak-shift analysis of the 111 and 200 diffractions, was high for the specimen with low stacking fault energy. Regardless of the difference in the stacking fault energies of the steel specimens, the refined crystallite size has a certain correlation with the stacking fault probability, indicating that whether the deformation-induced crystallite-size refinement occurs depends directly on the stacking fault probability rather than on the stacking fault energies in the present steel specimens. - Highlights: {yields} We studied effects of stacking fault energies on deformed microstructures of steels. {yields} Correlations between texture and occurrence of mechanical twinning are discussed. {yields} Evolutions of dislocations and crystallite are analyzed by line profile analysis.

Sato, Shigeo, E-mail: s.sato@imr.tohoku.ac.jp [Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan); Kwon, Eui-Pyo [Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577 (Japan); Imafuku, Muneyuki [Faculty of Engineering, Tokyo City University, Tokyo 158-8557 (Japan); Wagatsuma, Kazuaki [Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan); Suzuki, Shigeru [Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577 (Japan)

2011-08-15T23:59:59.000Z

487

Analysis of transmission system faults in the phase domain  

E-Print Network (OSTI)

the zero, positive and negative sequences. d) Calculate the post-fault line current ij 2 2 2 ij j ij z VI ?= (2.15) where ij is the primitive impedance element between nodes i and j. After all these sequence quantities... in Figure 5. The data of this system is listed in Tables 1, 2, and 3. Figure 5. System diagram for the 3-bus system Table 1 Generator data (3 Bus system) Generator impedance(p.u.) # Gen. connection P N Z 1 Y-grounded 0.05j 0.05j 0.15j 2...

Zhu, Jun

2004-11-15T23:59:59.000Z

488

Superconducting fault-current limiter and inductor design  

SciTech Connect

A superconducting fault current limiter (SFCL) that uses a biased superconducting inductor in a diode or thyristor bridge circuit was analyzed for transmission systems in 69, 138, and 230 rms kV utility transmission systems. The limiter was evaluated for costs with all components - superconducting coil, diode and/or SCR power electronics, high voltage insulation, high voltage bushings and vapor cooled leads, dewar, and refrigerator - included. A design was undertaken for the superconducting cable and coils for both diode and SCR 69 kV limiter circuits.

Rogers, J.D.; Boenig, H.J.; Chowdhuri, P.; Schermer, R.I.; Wollan, J.J.; Weldon, D.M.

1982-01-01T23:59:59.000Z

489

2-M Probe At Rhodes Marsh Area (Kratt, Et Al., 2008) | Open Energy  

Open Energy Info (EERE)

Rhodes Marsh Area (Kratt, Et Al., 2008) Rhodes Marsh Area (Kratt, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Rhodes Marsh Area (Kratt, Et Al., 2008) Exploration Activity Details Location Rhodes Marsh Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes Two-meter survey work at Rhodes Marsh began in December of 2007 followed by more recent activity in May of 2008. More than 65 2-meter-deep temperatures have been measured over a distance of 7 km (Figure 4). At the foot of the Pilot Mountains these data roughly parallel the southern end of Benton Springs fault. Anomalous temperatures up to 26.7°C occur adjacent to opalized sands and reveal a significant NW elongate temperature anomaly more than 5 km long. Cold shallow groundwater at the playa's eastern margin

490

Micro-Earthquake At Under Steamboat Springs Area (Warpinski, Et Al., 2002)  

Open Energy Info (EERE)

Under Steamboat Springs Area (Warpinski, Et Al., 2002) Under Steamboat Springs Area (Warpinski, Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Under Steamboat Springs Area (Warpinski, Et Al., 2002) Exploration Activity Details Location Under Steamboat Springs Area Exploration Technique Micro-Earthquake Activity Date Usefulness useful DOE-funding Unknown Notes This project consisted of (1) a 3-D surface seismic survey conducted in the fall of 2000, (2) a micro-seismic survey run from November 2000 to April 200 1, and (3) a gravity survey conducted in April and May 2001. The 3-D surface seismic data are still being processed at this time, but initial results indicate that there are two major lineations of high velocity running orthogonal to each other which are presumably related to the fault

491

Trace Element Analysis At Socorro Mountain Area (Owens, Et Al., 2005) |  

Open Energy Info (EERE)

Trace Element Analysis At Socorro Mountain Area (Owens, Et Al., 2005) Trace Element Analysis At Socorro Mountain Area (Owens, Et Al., 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Trace Element Analysis At Socorro Mountain Area (Owens, Et Al., 2005) Exploration Activity Details Location Socorro Mountain Area Exploration Technique Trace Element Analysis Activity Date Usefulness not indicated DOE-funding Unknown Notes In order to determine which of the faults in these regions were active and open to hydrothermal fluid circulation, we have employed selective ion geochemistry that is a new geochemical method capable of detecting anomalous concentrations for up to 47 elements transported to soils by geochemical cells or low pressure vapors. Enzyme leach and Terrasol leach are two such techniques. This method has to datae been mostly applied to

492

Negative ion photodetachment spectroscopy of the Al3O2 , Al3O3 , Al4Ox , Al5Ox (x = 35), Al6O5 , and Al7O5 clusters  

E-Print Network (OSTI)

Negative ion photodetachment spectroscopy of the Al3O2 , Al3O3 , Al4Ox , Al5Ox (x = 3­5), Al6O5 , and Al7O5 clusters Giovanni Meloni, Michael J. Ferguson and Daniel M. Neumark Department of Chemistry as an Advance Article on the web 9th September 2003 The Al3O2 , Al3O3 , Al4Ox , Al5Ox (x ¼ 3­5), Al6O5 , and Al7

Neumark, Daniel M.

493

Frictional behaviour of halite/muscovite fault gouge analogues: Effects of sliding velocity and of stepwise acceleration from sub- to co-seismic slip rates.  

E-Print Network (OSTI)

??Investigating the (transient) frictional behaviour of fault rock from low to high velocities is required in experimental research on the stability of faults and earthquake… (more)

Buijze, A.J.L.

2010-01-01T23:59:59.000Z

494

A hybrid system for fault detection and sensor fusion based on fuzzy clustering and artificial immune systems  

E-Print Network (OSTI)

In this study, an efficient new hybrid approach for multiple sensors data fusion and fault detection is presented, addressing the problem with possible multiple faults, which is based on conventional fuzzy soft clustering and artificial immune...

Jaradat, Mohammad Abdel Kareem Rasheed

2007-04-25T23:59:59.000Z

495

Detection and diagnosis of faults and energy monitoring of HVAC systems with least-intrusive power analysis  

E-Print Network (OSTI)

Faults indicate degradation or sudden failure of equipment in a system. Widely existing in heating, ventilating, and air conditioning (HVAC) systems, faults always lead to inefficient energy consumption, undesirable indoor ...

Luo, Dong, 1966-

2001-01-01T23:59:59.000Z

496

Development, Updating and Long-Term Operations of a 10.5 kV HTS Fault Current Limiter  

Science Journals Connector (OSTI)

There are many irreplaceable advantages of high temperature superconducting (HTS) fault current limiter, applying in electric utilities. It is expected to be able to solve excessive fault current problems and to ...

J. Zhang; S. Dai; Y. Teng; D. Zhang; N. Song…

2014-10-01T23:59:59.000Z

497

Study On Magnetic Shielding Type Superconducting Fault Current Limiter Using Bi-Sr-Ca-Cu-O Cylinder  

Science Journals Connector (OSTI)

The power application of a superconductor to restrain a fault current has been researched. A superconducting fault current limiter using a Bi-Sr-Ca-Cu-O cylinder has been developed. This limiter consists of the p...

Michiharu Ichikawa; Hiroyuki Kado; Kunikazu Izumi

1994-01-01T23:59:59.000Z

498

A Conceptual Design of Superconducting Fault Current Limiter with Bi2223 in 6.6 kV Distribution System  

Science Journals Connector (OSTI)

We have proposed a new type fault current limiter, which consists of a flux-lock reactor...c...superconducting (HTS) element and ac magnetic field coil (Flux-Lock Type Fault Current Limiter: FLT-FCL). This paper ...

Yu-Hong Guo; Toshiyuki Uchii; Yasunobu Yokomizu…

1998-01-01T23:59:59.000Z

499

Monitoring overburden layer changes and fault movements from time-lapse seismic data on the Valhall Field  

Science Journals Connector (OSTI)

......growth fault in the Frio formation, Texas Gulf Coast, Geophysics, 54, 426-439...surface faulting in the Houston-Galveston area, Texas related to deep fluid withdrawal...hydrocarbon production, southeastern Texas coast, J. Coastal Res., 13......

Thomas Røste; Martin Landrø; Paul Hatchell

2007-09-01T23:59:59.000Z

500

Fault Wear by Damage Evolution During Steady-State Slip VLADIMIR LYAKHOVSKY,1  

E-Print Network (OSTI)

, the wear leads to the establishment of gouge and cataclasite zones (Fig. 1b) that range in thickness fromFault Wear by Damage Evolution During Steady-State Slip VLADIMIR LYAKHOVSKY,1 AMIR SAGY,1 YUVAL BONEH,2 and ZE'EV RECHES 3 Abstract--Slip along faults generates wear products such as gouge layers

Lyakhovsky, Vladimir