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1

Horst and Graben | Open Energy Information  

Open Energy Info (EERE)

Horst and Graben Horst and Graben Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Horst and Graben Dictionary.png Horst and Graben: Topographic features found in a normal fault zone forming ridges and valleys. A graben represents a block of land that has dropped down relative to the landscape and a horst represents a block of land remaining higher than the general landscape. Other definitions:Wikipedia Reegle Topographic Features List of topographic features commonly encountered in geothermal resource areas: Mountainous Horst and Graben Shield Volcano Flat Lava Dome Stratovolcano Cinder Cone Caldera Depression Resurgent Dome Complex A "horst and graben" is a crustal-extension structure, composed of a series of normal faults, typical of the Basin & Range region of the US and

2

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

3

Tectonic evolution of the Thakkahola Graben and Dhaulagiri Himalaya, Central Nepal  

E-Print Network (OSTI)

Three extensional fault systems intersect in the central Nepal Himalaya: the South Tibetan fault system (STFS); the Thakkhola graben; and structures bounding the Upper Mustang Massif (UMM). Interactions between these systems ...

Hurtado, José Miguel, 1974-

2002-01-01T23:59:59.000Z

4

The 1994 Sefidabeh (eastern Iran) earthquakes revisited: new evidence from satellite radar interferometry and carbonate dating about the growth of an active fold above a blind thrust fault  

Science Journals Connector (OSTI)

......in those places where active folds do not necessarily...was done using a cold cathode Technosyn instrument...structural development of active fault and fold systems...14C ages for carbonate materials from Lakes Lahontan and...Dinklage W.S., 1998. Active tectonics at Wheeler......

B. Parsons; T. Wright; P. Rowe; J. Andrews; J. Jackson; R. Walker; M. Khatib; M. Talebian; E. Bergman; E. R. Engdahl

2006-01-01T23:59:59.000Z

5

Tectonic and flexural significance of Middle Devonian graben-fill sequence in new Albany shale, central Kentucky  

SciTech Connect

The third tectonic phase of the Acadian orogeny began in the late Middle Devonian, and the sedimentary record of that event is largely restricted to the deeper, more proximal portions of the Appalachian foreland and Illinois intercratonic basins. Much of the intervening area, on and near the Cincinnati arch, was uplifted and subjected to erosion by movement on the peripheral bulge accompanying the initiation of the third tectonic phase. However, bulge movement also reactivated basement fault systems in Kentucky and created a series of grabens that were filled with eroded sediments and debris flows from adjacent horsts. Although rarely preserved, a buried Devonian graben along Carpenter Fork in Boyle County, central Kentucky, reveals such a sequence. The graben is bounded by upthrown blocks of Middle Devonian Boyle Dolomite, which also floors the graben. Within the graben a black-shale unit, apparently absent elsewhere, conformably overlies the Boyle and grades upward into debris-flow deposits represented by the Duffin breccia facies of the New Albany Shale. The Duffin contains clasts of the shale, as well as of chert, silicified fossils, and fine to boulder-size dolostone clasts eroded from the Boyle high on the flanks of the graben. The underlying shale also exhibits evidence of penecontemporaneous soft-sediment deformation related to the debris-flow emplacement of Boyle residue in the graben and due to later loading by the Duffin.

Barnett, S.F.; Ettensohn, F.R.; Mellon, C. (Univ. of Kentucky, Lexington (USA))

1989-08-01T23:59:59.000Z

6

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

7

Microstructures in subglacial and proglacial sediments: understanding faults, folds and fabrics, and the influence of water on the style of deformation  

Science Journals Connector (OSTI)

Macroscopic field and micromorphological studies have been carried out on subglacially and proglacially deformed glacigenic sequences at a number of sites throughout Scotland, UK. Examination of microstructures (folds, faults, hydrofractures, plasmic fabrics) aided understanding of the deformation histories preserved in the sediments, but a similar range of structures were developed in both Subglacial and Proglacial settings. Discrimination between Subglacial and Proglacial deformation was only possible when micromorphological data was used in conjunction with larger-scale field observations. Variations in lithology and water content were controlling factors influencing the style and apparent intensity of deformation recorded. Changes in pore-water content and pressure during deformation can lead to liquefaction and hydrofracturing, with early-formed structures locally controlling the pattern of water escape. Liquefaction can also lead to homogenisation of the sediments and the destruction of earlier deformation structures, even at relatively low strains. Beds or zones of liquefied sand and silt may form highly ‘lubricated’ detachments within the sediment pile, resulting in a marked reduction in the amount of shear transmitted to underlying units. A multidisciplinary approach, involving sedimentological, geomorphological, stratigraphical and structural field observations, combined with micromorphological analysis, is recommended to confidently unravel the glacitectonic history and depositional environment of most deformed glacigenic sedimentary sequences.

Emrys Phillips; Jon Merritt; Clive Auton; Nick Golledge

2007-01-01T23:59:59.000Z

8

The Nootka Fault Zone — a new plate boundary off western Canada  

Science Journals Connector (OSTI)

......a graben structure forming the northern extension of West Valley, the present active spreadingcentre of the Juan de Fuca...projection of the fault zone neverthelessclosely encompasses West Valley, the active western segment of the twin spreading valleys......

R. D. Hyndman; R. P. Riddihough; R. Herzer

1979-09-01T23:59:59.000Z

9

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

10

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

11

Geologic And Geophysical Evidence For Intra-Basin And Footwall Faulting At  

Open Energy Info (EERE)

Geophysical Evidence For Intra-Basin And Footwall Faulting At Geophysical Evidence For Intra-Basin And Footwall Faulting At Dixie Valley, Nevada Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Geologic And Geophysical Evidence For Intra-Basin And Footwall Faulting At Dixie Valley, Nevada Details Activities (1) Areas (1) Regions (0) Abstract: A 'nested graben' structural model, in which multiple faults successively displace rocks downward to the deepest part of the basin, is supported by recent field geologic analysis and correlation of results to geophysical data for Dixie Valley. Aerial photographic analysis and detailed field mapping provide strong evidence for a deep graben separated from the ranges to the east and west by multiple normal faults that affect the Tertiary/Quaternary basin-fill sediments. Correlation with seismic

12

Folding@HomeFolding@Home Vijay Pande  

E-Print Network (OSTI)

Folding@HomeFolding@Home Vijay Pande #12;http://folding.stanford.edu © Vijay S. Pande 1999,000,000 PCs on the internet Folding@Home People donate their idle computer time They visit our website://folding.stanford.edu © Vijay S. Pande 1999-2003 Folding@HomeFolding@Home:: VeryVery powerful & cost effectivepowerful & cost

Dally, William J.

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

Protein folding tames chaos  

E-Print Network (OSTI)

Protein folding produces characteristic and functional three-dimensional structures from unfolded polypeptides or disordered coils. The emergence of extraordinary complexity in the protein folding process poses astonishing challenges to theoretical modeling and computer simulations. The present work introduces molecular nonlinear dynamics (MND), or molecular chaotic dynamics, as a theoretical framework for describing and analyzing protein folding. We unveil the existence of intrinsically low dimensional manifolds (ILDMs) in the chaotic dynamics of folded proteins. Additionally, we reveal that the transition from disordered to ordered conformations in protein folding increases the transverse stability of the ILDM. Stated differently, protein folding reduces the chaoticity of the nonlinear dynamical system, and a folded protein has the best ability to tame chaos. Additionally, we bring to light the connection between the ILDM stability and the thermodynamic stability, which enables us to quantify the disorderli...

Xia, Kelin

2013-01-01T23:59:59.000Z

15

Simultaneous Inversion for 3-D Crustal Structure and Hypocentres Including Direct, Refracted and Reflected Phases—III. Application to the Southern Rhine Graben Seismic Region, Germany  

Science Journals Connector (OSTI)

......model of the southern Wine Graben and phase notations...Graben is of much better quality than that of the northern...Using the same minimal quality criteria as in part I1...see Table 1). To increase the vertical resolution...the study is that an increase of the number of blocks......

Manfred Koch

1993-03-01T23:59:59.000Z

16

Reflection seismic profiling in Wabash Valley fault system in southwestern Indiana  

SciTech Connect

During the summer of 1988 common-depth-point (CDP) reflection seismic profiling was initiated by ARPEX in southwestern Indiana in the Wabash Valley fault system. A 2.2-im (1.4-mi) east-west profile was shot across the Mt. Vernon graben in Posey County. Minihole shooting in 21-m (68.9-ft) patterns using 3.4 kg (7.5 lb) of seismic explosives distributed in five 3-m (10-ft) holes provided the energy source. Most shotholes were made with a reversible air-driven penetrating tool that was effective in dense clays. The 12-geophone array length was 43 m (141 ft), and the nominal far-trace offset was 2.1 km (7,000 ft). A 48-channel recording yielded 24-CDP coverage at 11-m (36-ft) intervals. Data were enhanced by gapped deconvolution, bandpass filtering, and CDP stack. The strongest and most continuous reflections at 0.75 and 1.6 sec are associated with the New Albany Shale (Devonian-Mississippian) and Eau Claire Formation (Cambrian), respectively. Within the Mt. Vernon graben and east of the Spenser Consolidated oil field, the depth to Eau Claire Formation apparently increases by approximately 60 m (197 ft) over a horizontal distance of 1.4 km (0.9 mi). Minor faulting east of the Spencer Consolidated field appears to be synthetic to the Hovey lake fault, which bounds the eastern side of the Mt. Vernon graben. Tentative interpretations of faulting and weak reflections from depths greater than 4.5 km (15,000 ft) may be clarified by additional data processing and by additional seismic profiling planned by ARPEX.

Rene, R.M.; Hester, N.C.; Stanonis, F.L. (Indiana Univ., Bloomington (USA))

1989-08-01T23:59:59.000Z

17

The Influence of Fold and Fracture Development on Reservoir Behavior of the Lisburne Group of Northern Alaska  

SciTech Connect

The objectives of this study were to develop a better understanding of four major aspects of the Lisburne: (1) The geometry and kinematics of detachment folds and their truncation by thrust faults, (2) The influence of folding and lithostratigraphy on fracture patterns, (3) Lithostratigraphy and its influence on folding, faulting, fracturing, and reservoir characteristics, and (4) The influence of lithostratigraphy and deformation on fluid flow.

Wallace, W.K.; Hanks, C.L.; Whalen, M.T.; Jensen, J.; Atkinson, P.K.; Brinton, J.S.

2001-01-09T23:59:59.000Z

18

On the origin of graben and ridges within and near volcanically buried craters and basins in Mercury's northern plains  

E-Print Network (OSTI)

in Mercury's northern plains Andrew M. Freed,1 David M. Blair,1 Thomas R. Watters,2 Christian Klimczak,3 Paul volcanic plains taken by the MESSENGER spacecraft reveal a large number of buried impact craters and basins pooled lavas were thickest, and no graben are predicted within generally thinner plains outside of major

Zuber, Maria

19

Multiply folded graphene  

Science Journals Connector (OSTI)

The folding of paper, hide, and woven fabric has been used for millennia to achieve enhanced articulation, curvature, and visual appeal for intrinsically flat, two-dimensional materials. For graphene, an ideal two-dimensional material, folding may transform it to complex shapes with new and distinct properties. Here, we present experimental results that folded structures in graphene, termed grafold, exist, and their formations can be controlled by introducing anisotropic surface curvature during graphene synthesis or transfer processes. Using pseudopotential-density-functional-theory calculations, we also show that double folding modifies the electronic band structure of graphene. Furthermore, we demonstrate the intercalation of C60 into the grafolds. Intercalation or functionalization of the chemically reactive folds further expands grafold's mechanical, chemical, optical, and electronic diversity.

Kwanpyo Kim; Zonghoon Lee; Brad D. Malone; Kevin T. Chan; Benjamín Alemán; William Regan; Will Gannett; M. F. Crommie; Marvin L. Cohen; A. Zettl

2011-06-27T23:59:59.000Z

20

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

Note: This page contains sample records for the topic "faults folds grabens" 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

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

22

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

23

Seismic model study of fault and fold geometries  

E-Print Network (OSTI)

used for both theoretical and enipiri& al factois ivitli tli& latter in italics Most of the reflection events of significant aniplitude in this study (PP. SS. PPPP) are normal inciden&e reflections& oiv&ng t&& thc geometrica] i&stia&tioiis imposed...

Hand, Linda Mimura

2012-06-07T23:59:59.000Z

24

Protein Folding and Assembly  

Science Journals Connector (OSTI)

Abstract In order to carry out their biological functions, most polypeptide chains must fold into stable three-dimensional structures, for it is the precise spatial distribution of chemical groups within a protein that gives the molecule its ability to interact specifically with other molecules and, in the case of an enzyme, catalyze a chemical reaction. In many cases, individual polypeptide chains must also assemble into larger structures containing additional proteins or nucleic acids. The folding of many proteins is reversible, so that the native structure can be disrupted by a change in temperature or addition of a chemical denaturant, and the unfolded protein can then be induced to refold and assemble by returning it to physiological conditions. Experiments of this type demonstrate that the information specifying the native structure of a protein resides in its amino acid sequence, and in vitro studies have provided important insights into the energetic factors that drive folding and assembly and the kinetic mechanisms of these processes. Folding in vivo is often facilitated by transient interactions with other proteins, molecular chaperones. Folding may also compete with the formation of aberrant aggregates in vivo, sometimes leading to pathological conditions such as amyloid diseases.

D.P. Goldenberg

2013-01-01T23:59:59.000Z

25

Optimization Approaches to Protein Folding.  

E-Print Network (OSTI)

??This research shows optimization approaches to protein folding. The protein folding problem is to predict the compact three dimensional structure of a protein based on… (more)

Yoon, Hyun-suk

2006-01-01T23:59:59.000Z

26

The Influence of Fold and Fracture Development on Reservoir Behavior of the Lisburne Group of Northern Alaska  

SciTech Connect

The Carboniferous Lisburne Group is a major carbonate reservoir unit in northern Alaska. The lisburne is detachment folded where it is exposed throughout the northeastern Brooks Range, but is relatively underformed in areas of current production in the subsurface of the North Slope. The objectives of this study are to develop a better understanding of four major aspects of the Lisburne: (1) The geometry and kinematics of detachment folds and their truncation by thrust faults, (2) The influence of folding on fracture patterns, (3) The influence of deformation on fluid flow, and (4) Lithostratigraphy and its influence on folding, faulting, fracturing, and reservoir characteristics.

Wallace, Wesley K.; Hanks, Catherine L.; Whalen, Michael T.; Jensen1, Jerry; Shackleton, J. Ryan; Jadamec, Margarete A.; McGee, Michelle M.; Karpov1, Alexandre V.

2001-07-23T23:59:59.000Z

27

Predicting protein folding pathways  

Science Journals Connector (OSTI)

......residues is a good measure of the amount of water displaced by the residue- residue contact...twodomain ?/? enzyme that maintains pools of tetrahydrofolate used in nucleotide...H.J. and Wright,P.E. (2000) Conservation of folding pathways in evolutionary distant......

Mohammed J. Zaki; Vinay Nadimpally; Deb Bardhan; Chris Bystroff

2004-08-01T23:59:59.000Z

28

Simulations of Protein Folding  

E-Print Network (OSTI)

We have developed a simple, phenomenological, Monte-Carlo code that predicts the three-dimensional structure of globular proteins from the DNA sequences that define them. We have applied this code to two small proteins, the villin headpiece (1VII) and cole1 rop (1ROP). Our code folds both proteins to within 5 A rms of their native structures.

Michael Cahill; Mark Fleharty; Kevin Cahill

1999-09-17T23:59:59.000Z

29

Protein folding: concepts and perspectives  

Science Journals Connector (OSTI)

...In this review, the main concepts of protein folding, as deduced from both theoretical and experimental...

J. M. Yon

1997-07-01T23:59:59.000Z

30

INVERSE PROTEIN FOLDING, HIERARCHICAL OPTIMISATION  

E-Print Network (OSTI)

INVERSE PROTEIN FOLDING, HIERARCHICAL OPTIMISATION AND TIE KNOTS Thomas M. A. Fink st. john Introduction 3 1.1 Inverse Protein Folding 3 1.2 Hierarchical Optimisation 5 1.3 Tie Knots 6 1.4 Schematic Organisation 6 1.5 Publications 9 2 Protein Folding, Inverse Protein Folding and Energy Landscapes 10 2

Halligan, Daniel

31

Protein folding and cosmology  

E-Print Network (OSTI)

Protein denaturing induced by supercooling is interpreted as a process where some or all internal symmetries of the native protein are spontaneously broken. Hence, the free-energy potential corresponding to a folding-funnel landscape becomes temperature-dependent and describes a phase transition. The idea that deformed vortices could be produced in the transition induced by temperature quenching, from native proteins to unfolded conformations is discussed in terms of the Zurek mechanism that implements the analogy between vortices, created in the laboratory at low energy, and the cosmic strings which are thought to have been left after symmetry breaking phase transitions in the early universe. An experiment is proposed to test the above idea which generalizes the cosmological analogy to also encompass biological systems and push a step ahead the view that protein folding is a biological equivalent of the big bang.

González-Diáz, P F

1997-01-01T23:59:59.000Z

32

Protein folding and cosmology  

E-Print Network (OSTI)

Protein denaturing induced by supercooling is interpreted as a process where some or all internal symmetries of the native protein are spontaneously broken. Hence, the free-energy potential corresponding to a folding-funnel landscape becomes temperature-dependent and describes a phase transition. The idea that deformed vortices could be produced in the transition induced by temperature quenching, from native proteins to unfolded conformations is discussed in terms of the Zurek mechanism that implements the analogy between vortices, created in the laboratory at low energy, and the cosmic strings which are thought to have been left after symmetry breaking phase transitions in the early universe. An experiment is proposed to test the above idea which generalizes the cosmological analogy to also encompass biological systems and push a step ahead the view that protein folding is a biological equivalent of the big bang.

P. F. Gonzalez-Diaz; C. L. Siguenza

1997-06-04T23:59:59.000Z

33

Protein folding and heteropolymers  

E-Print Network (OSTI)

We present a statistical mechanics approach to the protein folding problem. We first review some of the basic properties of proteins, and introduce some physical models to describe their thermodynamics. These models rely on a random heteropolymeric description of these non random biomolecules. Various kinds of randomness are investigated, and the connection with disordered systems is discussed. We conclude by a brief study of the dynamics of proteins.

T. Garel; H. Orland; E. Pitard

1997-06-12T23:59:59.000Z

34

Folded waveguide coupler  

DOE Patents (OSTI)

A resonant cavity waveguide coupler for ICRH of a magnetically confined plasma. The coupler consists of a series of inter-leaved metallic vanes disposed withn an enclosure analogous to a very wide, simple rectangular waveguide that has been "folded" several times. At the mouth of the coupler, a polarizing plate is provided which has coupling apertures aligned with selected folds of the waveguide through which rf waves are launched with magnetic fields of the waves aligned in parallel with the magnetic fields confining the plasma being heated to provide coupling to the fast magnetosonic wave within the plasma in the frequency usage of from about 50-200 mHz. A shorting plate terminates the back of the cavity at a distance approximately equal to one-half the guide wavelength from the mouth of the coupler to ensure that the electric field of the waves launched through the polarizing plate apertures are small while the magnetic field is near a maximum. Power is fed into the coupler folded cavity by means of an input coaxial line feed arrangement at a point which provides an impedance match between the cavity and the coaxial input line.

Owens, Thomas L. (Kingston, TN)

1988-03-01T23:59:59.000Z

35

Is protein folding rate dependent on number of folding stages? Modeling of protein folding with ferredoxin-like fold  

Science Journals Connector (OSTI)

Statistical analysis of protein folding rates has been done for 84 proteins ... than those with two-state kinetics. The protein folding for six proteins with a ferredoxin-like...

O. V. Galzitskaya

2010-06-01T23:59:59.000Z

36

Petaflop Computing for Protein Folding  

E-Print Network (OSTI)

"SIAM01p 2000/12/4 page 1 Petaflop Computing for Protein Folding Shannon K. Kuntz, Richard C. Murphy, Michael T. Niemier, Jesus Izaguirre, and Peter M. Kogge 1 Introduction Protein Folding the protein folding problem, while Silicon Graphics has been continually working to produce more powerful

Izaguirre, Jesús A.

37

Computer Simulations of Protein Folding  

E-Print Network (OSTI)

CHAPTER 8 Computer Simulations of Protein Folding VIJAY S. PANDE , ERIC J. SORIN , CHRISTOPHER D, CA 94305, USA 8.1 Introduction: Goals and Challenges of Simulating Protein Folding Computer as well as recent applications of this methodology. 8.1.1 Simulating Protein Folding Proteins play

Sorin, Eric J.

38

Theoretical Perspectives on Protein Folding  

E-Print Network (OSTI)

Theoretical Perspectives on Protein Folding D. Thirumalai,1 Edward P. O'Brien,2 Greg Morrison,3 Understanding how monomeric proteins fold under in vitro conditions is crucial to describing their functions remains to be done to solve the protein folding problem in the broadest sense. 159 Annu.Rev.Biophys.2010

Thirumalai, Devarajan

39

Folding and binding Editorial overview  

E-Print Network (OSTI)

is on the study of how protein folding, unfolding and aggregation reactions commence, and on the study of California, Berkeley. Her lab focuses on studies of protein folding and dynamics. Currently she­based kinetics. Much of the progress that has been made in the past fifty years in the study of protein folding

40

Protein folding in the ER.  

SciTech Connect

The endoplasmic reticulum (ER) is a major protein folding compartment for secreted, plasma membrane and organelle proteins. Each of these newly-synthesized polypeptides folds in a deterministic process, affected by the unique conditions that exist in the ER. An understanding of protein folding in the ER is a fundamental biomolecular challenge at two levels. The first level addresses how the amino acid sequence programs that polypeptide to efficiently arrive at a particular fold out of a multitude of alternatives, and how different sequences obtain similar folds. At the second level are the issues introduced by folding not in the cytosol, but in the ER, including the risk of aggregation in a molecularly crowded environment, accommodation of post-translational modifications and the compatibility with subsequent intracellular trafficking. This review discusses both the physicochemical and cell biological constraints of folding, which are the challenges that the ER molecular chaperones help overcome.

Stevens, F. J.; Argon, Y.; Biosciences Division; Univ. of Chicago

1999-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "faults folds grabens" 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

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

42

Theoretical Perspectives on Protein Folding  

E-Print Network (OSTI)

Understanding how monomeric proteins fold under in vitro conditions is crucial to describing their functions in the cellular context. Significant advances both in theory and experiments have resulted in a conceptual framework for describing the folding mechanisms of globular proteins. The experimental data and theoretical methods have revealed the multifaceted character of proteins. Proteins exhibit universal features that can be determined using only the number of amino acid residues (N) and polymer concepts. The sizes of proteins in the denatured and folded states, cooperativity of the folding transition, dispersions in the melting temperatures at the residue level, and time scales of folding are to a large extent determined by N. The consequences of finite N especially on how individual residues order upon folding depends on the topology of the folded states. Such intricate details can be predicted using the Molecular Transfer Model that combines simulations with measured transfer free energies of protein building blocks from water to the desired concentration of the denaturant. By watching one molecule fold at a time, using single molecule methods, the validity of the theoretically anticipated heterogeneity in the folding routes, and the N-dependent time scales for the three stages in the approach to the native state have been established. Despite the successes of theory, of which only a few examples are documented here, we conclude that much remains to be done to solve the "protein folding problem" in the broadest sense.

D. Thirumalai; Edward P. O'Brien; Greg Morrison; Changbong Hyeon

2010-07-18T23:59:59.000Z

43

A Novel Topology for Representing Protein Folds  

E-Print Network (OSTI)

J. (2008). Predicting protein folding rates from geometric1993). Cooperativity in protein-folding kinetics. Proc NatlVoelz VA. (2007). The protein folding problem: when will it

Segal, Mark R

2009-01-01T23:59:59.000Z

44

Uncovering Allostery in a Uniquely Folded Metalloprotein /  

E-Print Network (OSTI)

M (2005) Downhill protein folding: evolution meets physics.based models for protein folding and function. Proteins:48-51). This is because protein folding and protein function

Baxter, Elizabeth Leigh

2013-01-01T23:59:59.000Z

45

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

46

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

47

THE INFLUENCE OF FOLD AND FRACTURE DEVELOPMENT ON RESERVOIR BEHAVIOR OF THE LISBURNE GROUP OF NORTHERN ALASKA  

SciTech Connect

The Lisburne Group is a major carbonate reservoir unit in northern Alaska. The Lisburne is detachment folded where it is exposed throughout the northeastern Brooks Range, but is relatively undeformed in areas of current production in the subsurface of the North Slope. The objectives of this study are to develop a better understanding of four major aspects of the Lisburne: (1) The geometry and kinematics of detachment folds and their truncation by thrust faults. (2) The influence of folding and lithostratigraphy on fracture patterns. (3) Lithostratigraphy and its influence on folding, faulting, fracturing, and reservoir characteristics. (4) The influence of lithostratigraphy and deformation on fluid flow. The results of field work during the summer of 1999 offer some preliminary insights: The Lisburne Limestone displays a range of symmetrical detachment fold geometries throughout the northeastern Brooks Range. The variation in fold geometry suggests a generalized progression in fold geometry with increasing shortening: Straight-limbed, narrow-crested folds at low shortening, box folds at intermediate shortening, and folds with a large height-to-width ratio and thickened hinges at high shortening. This sequence is interpreted to represent a progressive change in the dominant shortening mechanism from flexural-slip at low shortening to bulk strain at higher shortening. Structural variations in bed thickness occur throughout this progression. Parasitic folding accommodates structural thickening at low shortening and is gradually succeeded by penetrative strain as shortening increases. The amount of structural thickening at low to intermediate shortening may be inversely related to the local amount of structural thickening of the Kayak Shale, the incompetent unit that underlies the Lisburne. The Lisburne Limestone displays a different structural style in the south, across the boundary between the northeastern Brooks Range and the main axis of the Brooks Range fold-and-thrust belt. The steep forelimbs of angular asymmetrical folds typically have been cut and displaced by thrust faults, resulting in superposition of a fault-bend fold geometry on the truncated folds. Remnant uncut folds within trains of thrust-truncated folds and the predominance of detachment folds to the north suggest that these folds originated as detachment folds. Fold asymmetry and a more uniformly competent Lisburne Limestone may have favored accommodation of a significant proportion of shortening by thrust faulting, in contrast with the dominance of fold shortening to the north. Two dominant sets of fractures are present in the least deformed Lisburne Limestone: Early extension fractures normal to the regional fold trend and late extension and shear fractures parallel to the regional fold trend. These two major fracture sets remain as deformation increases, but they are more variable in orientation, character, and relative age. Compared to fold limbs, the fold hinges display greater density and extent of fractures, more conjugate and shear fractures, and more evidence of penetrative strain. This suggests that hinges remained fixed during fold growth. Late extension fractures normal to the fold axis are common even where penetrative strain is greatest. Fracture density is greater in fine-grained carbonates than in coarse-grained carbonates over the entire spectrum of deformation.

Wesley K. Wallace; Catherine L. Hanks; Michael T. Whalen; Jerry Jensen; Paul K. Atkinson; Joseph S. Brinton

2000-05-01T23:59:59.000Z

48

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

49

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

50

Toy model for protein folding  

Science Journals Connector (OSTI)

A conceptually simple model for protein-folding phenomena has been created: it is two-dimensional and has only two different ‘‘amino acids.’’ Ground-state conformations have been determined for all of its flexible polypeptides containing seven or fewer monomers. This complete database displays a wide geometric variety of folded shapes and shows that single point mutations in some cases induce substantial folding modifications. Neural-network concepts have been employed to analyze results. The simplest static neural networks required to act as error-free read-only memories provide a way to visualize the logical structure of underlying folding principles. The topologies of optimal networks found thus far suggest that protein folding has a more complex cooperative character than has been embodied previously in theoretical approaches.

Frank H. Stillinger; Teresa Head-Gordon; Catherine L. Hirshfeld

1993-08-01T23:59:59.000Z

51

Active folding of fluvial terraces across the Siwaliks Hills, Himalayas of central Nepal  

E-Print Network (OSTI)

Active folding of fluvial terraces across the Siwaliks Hills, Himalayas of central Nepal J. Lave´1 of central Nepal, south of the Kathmandu Basin. The Main Frontal Thrust fault (MFT), which marks the southern analysis, complemented by geological investiga- tions in central Nepal. Active deformation in the Himalaya

Avouac, Jean-Philippe

52

Protein Folding Rates Correlate with Heterogeneity of Folding Mechanism  

Science Journals Connector (OSTI)

By observing trends in the folding kinetics of experimental 2-state proteins at their transition midpoints, and by observing trends in the barrier heights of numerous simulations of coarse-grained, C? model G? proteins, we show that folding rates correlate with the degree of heterogeneity in the formation of native contacts. Statistically significant correlations are observed between folding rates and measures of heterogeneity inherent in the native topology, as well as between rates and the variance in the distribution of either experimentally measured or simulated ? values.

B. Öztop; M. R. Ejtehadi; S. S. Plotkin

2004-11-12T23:59:59.000Z

53

Fast events in protein folding  

SciTech Connect

The primary objective of this work was to develop a molecular understanding of how proteins achieve their native three-dimensional (folded) structures. This requires the identification and characterization of intermediates in the protein folding process on all relevant timescales, from picoseconds to seconds. The short timescale events in protein folding have been entirely unknown. Prior to this work, state-of-the-art experimental approaches were limited to milliseconds or longer, when much of the folding process is already over. The gap between theory and experiment is enormous: current theoretical and computational methods cannot realistically model folding processes with lifetimes longer than one nanosecond. This unique approach to employ laser pump-probe techniques that combine novel methods of laser flash photolysis with time-resolved vibrational spectroscopic probes of protein transients. In this scheme, a short (picosecond to nanosecond) laser photolysis pulse was used to produce an instantaneous pH or temperature jump, thereby initiating a protein folding or unfolding reaction. Structure-specific, time-resolved vibrational probes were then used to identify and characterize protein folding intermediates.

Woodruff, W.; Callender, R.; Causgrove, T.; Dyer, R.; Williams, S.

1996-04-01T23:59:59.000Z

54

Hydrodynamic Description of Protein Folding  

Science Journals Connector (OSTI)

A hydrodynamic description of protein folding is proposed and illustrated with a lattice protein model, which has a free energy surface (FES) typical of proteins with two-state folding kinetics. The flows from the unfolded to the native state are concentrated in a limited region of the FES. The rest is occupied by a flow “vortex”, which does not lead to the native state. In contrast with intermediates that are associated with local minima, the vortex is not visible on the FES. The hydrodynamic interpretation thus provides new insights into the mechanism of protein folding and can be a useful complement to standard analyses.

Sergei F. Chekmarev; Andrey Yu. Palyanov; Martin Karplus

2008-01-11T23:59:59.000Z

55

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

56

Simplified Models of Protein Folding  

Science Journals Connector (OSTI)

Protein folding is one of the most basic physico-...1...]. As in all theoretical endeavors, the degree of simplification in modeling protein behavior depends on the questions to be addressed. The motivations for ...

Hue Sun Chan

2005-01-01T23:59:59.000Z

57

Dominant Pathways in Protein Folding  

Science Journals Connector (OSTI)

We present a method to investigate the kinetics of protein folding and the dynamics underlying the formation of secondary and tertiary structures during the entire reaction. By writing the solution of the Fokker-Planck equation in terms of a path integral, we derive a Hamilton-Jacobi variational principle from which we are able to compute the most probable pathway of folding. The method is applied to the folding of the Villin headpiece subdomain simulated using a Go model. An initial collapsing phase driven by the initial configuration is followed by a rearrangement phase, in which secondary structures are formed and all computed paths display strong similarities. This completely general method does not require the prior knowledge of any reaction coordinate and is an efficient tool to perform simulations of the entire folding process with available computers.

P. Faccioli; M. Sega; F. Pederiva; H. Orland

2006-09-06T23:59:59.000Z

58

Protein Folding Sculpting Evolutionary Change  

E-Print Network (OSTI)

Our work suggests that the forces that govern protein folding exert a profound effect on how genotypes are translated into phenotypes and that this in turn has strong effects on evolutionary processes. Molecular chaperones, ...

Lindquist, Susan

59

Characterization of protein folding intermediates  

SciTech Connect

The three-dimensional structure of a protein is encoded in its linear sequence of amino acids. Studies of protein folding are aimed at understanding the nature of this code which translates one-dimensional information to three-dimensions. It is now well-established that protein folding intermediates exist and can be populated significantly under some conditions. A method to characterize kinetic folding intermediates is described. The method takes advantage of the decrease in exchange rates between amide protons (i.e., peptide backbone NH) and solvent water protons, when the amide proton is involved in structure. The feasibility of using amide proton exchange to pulse-label proteins during folding has been demonstrated using (/sup 3/H)-H/sub 2/O. The results with ribonuclease A (RNase A) support a framework model for folding, in which the secondary structure of a protein is formed before tertiary structure changes are complete. Extension of these studies using NMR should permit characterization of early secondary structure folding frameworks.

Kim, P.S.

1986-01-01T23:59:59.000Z

60

Introduction to Grid computing Protein folding  

E-Print Network (OSTI)

Introduction to Grid computing Protein folding Protein folding is an extremely hot topic in medical research these days, unfortunately protein folding is extremely computationally demanding and requires a huge supercomputer to fold even the simplest proteins. Luckily the task of calculating protein foldings

Boyar, Joan

Note: This page contains sample records for the topic "faults folds grabens" 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

A motion planning approach to protein folding  

E-Print Network (OSTI)

Protein folding is considered to be one of the grand challenge problems in biology. Protein folding refers to how a protein's amino acid sequence, under certain physiological conditions, folds into a stable close-packed three-dimensional structure...

Song, Guang

2004-09-30T23:59:59.000Z

62

Principles of Chaperone-Mediated Protein Folding  

Science Journals Connector (OSTI)

...Principles of Chaperone-Mediated Protein Folding F. Ulrich Hartl The recent discovery...coordinated pathway of cellular protein folding. Principles of chaperone-mediated protein folding. | The recent discovery of molecular...

1995-01-01T23:59:59.000Z

63

Pathway and Stability of Protein Folding  

Science Journals Connector (OSTI)

...research-article Pathway and Stability of Protein Folding Alan R. Fersht Mark Bycroft...experimental approach to the problem of protein folding and stability which measures...helices. Pathway and stability of protein folding. | We describe an experimental...

1991-01-01T23:59:59.000Z

64

Models of Cooperativity in Protein Folding  

Science Journals Connector (OSTI)

...research-article Models of Cooperativity in Protein Folding Hue Sun Chan Sarina Bromberg...two-state cooperativity of protein folding? Since the 1950s, three main...Models of cooperativity in protein folding. | What is the basis for the...

1995-01-01T23:59:59.000Z

65

Investigating Protein Folding and Function by Manipulating Rare and Partially-Folded Conformations  

E-Print Network (OSTI)

and G.D. Rose, The protein-folding problem: the native foldZ. Zhou, and Y. Bai, A protein folding pathway with multipleintermediate state in protein folding by a hydrophobic

Horner, Geoffrey Ashworth

2010-01-01T23:59:59.000Z

66

Journal Article: Simplified Protein Models: Predicting Folding...  

Office of Scientific and Technical Information (OSTI)

Simplified Protein Models: Predicting Folding Pathways and Structure Using Amino Acid Sequences Citation Details Title: Simplified Protein Models: Predicting Folding Pathways and...

67

Search for: "protein folding" | DOE PAGES  

Office of Scientific and Technical Information (OSTI)

"protein folding" Find + Advanced Search Advanced Search All Fields: "protein folding" Title: Full Text: Bibliographic Data: Creator Author: Name Name ORCID Search Authors...

68

Folding for binding or binding for folding? Amedeo Caflisch  

E-Print Network (OSTI)

that there exist soluble proteins which lack a well-defined folded structure or contain disordered segments [1, 2]. A computational approach trained on known proteins with intrinsic disorder has pre- dicted unstructured regions-425, 2003. It is posted with permission from Elsevier. November 20, 2003 Abstract A number of proteins

Caflisch, Amedeo

69

Turbulent phenomena in protein folding  

Science Journals Connector (OSTI)

Protein folding and hydrodynamic turbulence are two long-standing challenges, in molecular biophysics and fluid dynamics, respectively. The theories of these phenomena have been developed independently and used different formalisms. Here we show that the protein folding flows can be surprisingly similar to turbulent fluid flows. Studying a benchmark model protein (an SH3 domain), we have found that the flows for the slow folding trajectories of the protein, in which a partly formed N- and C-terminal ? sheet hinders the RT loop from attaching to the protein core, have many properties of turbulent flows of a fluid. The flows are analyzed in a three-dimensional (3D) space of collective variables, which are the numbers of native contacts between the terminal ? strands, between the RT loop and the protein core, and the rest of the native contacts. We have found that the flows have fractal nature and are filled with 3D eddies; the latter contain strange attractors, at which the tracer flow paths behave as saddle trajectories. Two regions of the space increment have been observed, in which the flux variations are self-similar with the scaling exponent h=1/3, in surprising agreement with the Kolmogorov inertial range theory of turbulence. In one region, the cascade of protein rearrangements is directed from larger to smaller scales (net folding), and in the other, it is oppositely directed (net unfolding). Folding flows for the fast trajectories are essentially “laminar” and do not have the property of self-similarity. Based on the results of our study, we infer, and support this inference by simulations, that the origin of the similarity between the protein folding and turbulent motion of a fluid is in a cascade mechanism of structural transformations in the systems that underlies these phenomena.

Igor V. Kalgin and Sergei F. Chekmarev

2011-01-31T23:59:59.000Z

70

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

71

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

72

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

73

Dominant Pathways in Protein Folding  

E-Print Network (OSTI)

We present a method to investigate the kinetics of protein folding on a long time-scale and the dynamics underlying the formation of secondary and tertiary structures during the entire reaction. The approach is based on the formal analogy between thermal and quantum diffusion: by writing the solution of the Fokker-Planck equation for the time-evolution of a protein in a viscous heat-bath in terms of a path integral, we derive a Hamilton-Jacobi variational principle from which we are able to compute the most probable pathway of folding. The method is applied to the folding of the Villin Headpiece Subdomain, in the framework of a Go-model. We have found that, in this model, the transition occurs through an initial collapsing phase driven by the starting coil configuration and a later rearrangement phase, in which secondary structures are formed and all computed paths display strong similarities. This method is completely general, does not require the prior knowledge of any reaction coordinate and represents an efficient tool to perfom ab-initio simulations of the entire folding process with available computers.

P. Faccioli; M. Sega; F. Pederiva; H. Orland

2006-07-27T23:59:59.000Z

74

Folding in regions of extension  

Science Journals Connector (OSTI)

......isostatically compensated and why the Moho remains flat in such regions. Finally, the model accounts...extensional folds from examples in the Rocky Mountain Basin and Range province, U...the Basin and Range-Colorado Plateau-Rocky Mountain transition from coherence analysis......

F. Lévy; C. Jaupart

2011-06-01T23:59:59.000Z

75

Folding in regions of extension  

Science Journals Connector (OSTI)

......For the large crustal temperatures that are implied by the small...interesting feature is the Snake River Plain at the northern...implications for fold and rock fabric development, central Mojave metamorphic...Evans B., 1979. Stress and temperature in the bending lithosphere......

F. Lévy; C. Jaupart

2011-06-01T23:59:59.000Z

76

Disulfide-Linked Protein Folding Pathways  

E-Print Network (OSTI)

Disulfide-Linked Protein Folding Pathways Bharath S. Mamathambika1,3 and James C. Bardwell2,3, 1 of protein folding is difficult because it involves the identification and characterization of folding to protein folding in vitro and in vivo. 211 Click here for quick links to Annual Reviews content online

Bardwell, James

77

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

78

Protein folding using contact maps  

E-Print Network (OSTI)

We present the development of the idea to use dynamics in the space of contact maps as a computational approach to the protein folding problem. We first introduce two important technical ingredients, the reconstruction of a three dimensional conformation from a contact map and the Monte Carlo dynamics in contact map space. We then discuss two approximations to the free energy of the contact maps and a method to derive energy parameters based on perceptron learning. Finally we present results, first for predictions based on threading and then for energy minimization of crambin and of a set of 6 immunoglobulins. The main result is that we proved that the two simple approximations we studied for the free energy are not suitable for protein folding. Perspectives are discussed in the last section.

Michele Vendruscolo; Eytan Domany

1999-01-21T23:59:59.000Z

79

Polymer Uncrossing and Knotting in Protein Folding, and Their Role in Minimal Folding Pathways  

E-Print Network (OSTI)

Polymer Uncrossing and Knotting in Protein Folding, and Their Role in Minimal Folding Pathways Ali induce dominant pathway mechanisms in protein folding. Citation: Mohazab AR, Plotkin SS (2013) Polymer Uncrossing and Knotting in Protein Folding, and Their Role in Minimal Folding Pathways. PLoS ONE 8(1): e53642

Plotkin, Steven S.

80

THE INFLUENCE OF FOLD AND FRACTURE DEVELOPMENT ON RESERVOIR BEHAVIOR OF THE LISBURNE GROUP OF NORTHERN ALASKA  

SciTech Connect

The Carboniferous Lisburne Group is a major carbonate reservoir unit in northern Alaska. The Lisburne is detachment folded where it is exposed throughout the northeastern Brooks Range, but is relatively undeformed in areas of current production in the subsurface of the North Slope. The objectives of this study are to develop a better understanding of four major aspects of the Lisburne: (1) The geometry and kinematics of detachment folds and their truncation by thrust faults. (2) The influence of folding on fracture patterns. (3) The influence of deformation on fluid flow. (4) Lithostratigraphy and its influence on folding, faulting, fracturing, and reservoir characteristics. The Lisburne in the main axis of the Brooks Range is characteristically deformed into imbricate thrust sheets with asymmetrical hanging wall anticlines and footwall synclines. In contrast, the Lisburne in the northeastern Brooks Range is characterized by symmetrical detachment folds. The focus of our 2000 field studies was at the boundary between these structural styles in the vicinity of Porcupine Lake, in the Arctic National Wildlife Refuge. The northern edge of thrust-truncated folds in Lisburne is marked by a local range front that likely represents an eastward continuation of the central Brooks Range front. This is bounded to the north by a gently dipping panel of Lisburne with local asymmetrical folds. The leading edge of the flat panel is thrust over Permian to Cretaceous rocks in a synclinal depression. These younger rocks overlie symmetrically detachment-folded Lisburne, as is extensively exposed to the north. Six partial sections were measured in the Lisburne of the flat panel and local range front. The Lisburne here is about 700 m thick and is interpreted to consist primarily of the Wachsmuth and Alapah Limestones, with only a thin veneer of Wahoo Limestone. The Wachsmuth (200 m) is gradational between the underlying Missippian Kayak Shale and the overlying Mississippian Alapah, and increases in resistance upward. The Alapah consists of a lower resistant member (100 m) of alternating limestone and chert, a middle recessive member (100 m), and an upper resistant member (260 m) that is similar to Wahoo in the northeastern Brooks Range. The Wahoo is recessive and is thin (30 m) due either to non-deposition or erosion beneath the sub-Permian unconformity. The Lisburne of the area records two major episodes of transgression and shallowing-upward on a carbonate ramp. Thicknesses and facies vary along depositional strike. Asymmetrical folds, mostly truncated by thrust faults, were studied in and south of the local range front. Fold geometry was documented by surveys of four thrust-truncated folds and two folds not visibly cut by thrusts. A portion of the local range front was mapped to document changes in fold geometry along strike in three dimensions. The folds typically display a long, non-folded gently to moderately dipping backlimbs and steep to overturned forelimbs, commonly including parasitic anticline-syncline pairs. Thrusts commonly cut through the anticlinal forelimb or the forward synclinal hinge. These folds probably originated as detachment folds based on their mechanical stratigraphy and the transition to detachment folds to the north. Their geometry indicates that they were asymmetrical prior to thrust truncation. This asymmetry may have favored accommodation of increasing shortening by thrust breakthrough rather than continued folding. Fracture patterns were documented in the gently dipping panel of Lisburne and the asymmetrical folds within it. Four sets of steeply dipping extension fractures were identified, with strikes to the (1) N, (2) E, (3) N to NW, and (4) NE. The relative timing of these fracture sets is complex and unclear. En echelon sets of fractures are common, and display normal or strike-slip sense. Mesoscopic and penetrative structures are locally well developed, and indicate bed-parallel shear within the flat panel and strain within folds. Three sets of normal faults are well developed in the area, and are unusual

Wesley K. Wallace; Catherine L. Hanks; Jerry Jensen; Michael T. Whalen

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "faults folds grabens" 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

Folding pathway of a lattice model for protein folding Vijay S. Pande1  

E-Print Network (OSTI)

Folding pathway of a lattice model for protein folding Vijay S. Pande1 and Daniel S. Rokhsar1 principles that describe protein folding, then one might expect them to apply to simplified models

Croquette, Vincent

82

The Influence of fold and fracture development on reservoir behavior of the Lisburne Group of northern Alaska  

SciTech Connect

The Carboniferous Lisburne Group is a major carbonate reservoir unit in northern Alaska. The Lisburne is folded and thrust faulted where it is exposed throughout the Brooks Range, but is relatively undeformed in areas of current production in the subsurface of the North Slope. The objectives of this study were to develop a better understanding of four major aspects of the Lisburne: (1) The geometry and kinematics of folds and their truncation by thrust faults. (2) The influence of folding on fracture patterns. (3) The influence of deformation on fluid flow. (4) Lithostratigraphy and its influence on folding, faulting, fracturing, and reservoir characteristics. Symmetrical detachment folds characterize the Lisburne in the northeastern Brooks Range. In contrast, Lisburne in the main axis of the Brooks Range is deformed into imbricate thrust sheets with asymmetrical hangingwall anticlines and footwall synclines. The Continental Divide thrust front separates these different structural styles in the Lisburne and also marks the southern boundary of the northeastern Brooks Range. Field studies were conducted for this project during 1999 to 2001 in various locations in the northeastern Brooks Range and in the vicinity of Porcupine Lake, immediately south of the Continental Divide thrust front. Results are summarized below for the four main subject areas of the study.

Wesley K. Wallace; Catherine L. Hanks; Jerry Jensen: Michael T. Whalen; Paul Atkinson; Joseph Brinton; Thang Bui; Margarete Jadamec; Alexandre Karpov; John Lorenz; Michelle M. McGee; T.M. Parris; Ryan Shackleton

2004-07-01T23:59:59.000Z

83

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

84

Molecular Dynamics Simulations of Protein Folding  

Science Journals Connector (OSTI)

I illustrate the use of the replica exchange molecular dynamics (REMD) algorithm to study the folding of a small (57 amino acids) protein that folds into a three-helix bundle, protein A. The REMD is a triviall...

Angel E. Garcia

2008-01-01T23:59:59.000Z

85

Topology to geometry in protein folding: -Lactoglobulin  

E-Print Network (OSTI)

Topology to geometry in protein folding: -Lactoglobulin Ariel Ferna´ndez* , Andre´s Colubri , and R angles and at the -carbon atoms of the peptide backbone dominate protein folding. Next in importance

Berry, R. Stephen

86

EXPLORING PROTEIN FOLDING TRAJECTORIES USING GEOMETRIC SPANNERS  

E-Print Network (OSTI)

EXPLORING PROTEIN FOLDING TRAJECTORIES USING GEOMETRIC SPANNERS D. RUSSEL and L. GUIBAS Computer of secondary and tertiary structures as the protein folds. 1 Introduction There has been extensive work understanding of protein folding by studying their ensemble behaviors. Most currently used methods

Guibas, Leonidas J.

87

Protein folding: not just another optimization  

E-Print Network (OSTI)

Protein folding: not just another optimization problem Kevin Karplus karplus of California, Santa Cruz protein-folding: not just opt ­ p.1/68 #12;Outline of Talk What is Bioinformatics initio" methods Contact prediction protein-folding: not just opt ­ p.2/68 #12;What is Bioinformatics

Karplus, Kevin

88

UNCORRECTED 3 Protein folding: Then and now  

E-Print Network (OSTI)

UNCORRECTED PROOF 1 2 Review 3 Protein folding: Then and now 4 Yiwen Chen 1 , Feng Ding 1 , Huifen 8 9 Abstract 10 Over the past three decades the protein folding field has undergone monumental changes. Originally a purely academic question, how 11 a protein folds has now become vital

Dokholyan, Nikolay V.

89

Atomistic Protein Folding Simulations on the  

E-Print Network (OSTI)

Atomistic Protein Folding Simulations on the Submillisecond Time Scale Using Worldwide Distributed Abstract: Atomistic simulations of protein folding have the potential to be a great complement. Biopolymers 68: 91­109, 2003 Keywords: atomistic protein folding; microsecond time scale; computer hardware

Snow, Christopher

90

Thermodynamics of Protein Folding Erik Sandelin  

E-Print Network (OSTI)

Thermodynamics of Protein Folding and Design Erik Sandelin Department of Theoretical Physics Lund Sölvegatan 14A 223 62 LUND September 2000 Erik Sandelin Thermodynamics of Protein Folding and Design The protein folding and protein design problems are addressed, using coarse-grained models with only two types

Sandelin, Erik

91

272 Dispatch Protein folding: Chaperones get Hip  

E-Print Network (OSTI)

272 Dispatch Protein folding: Chaperones get Hip Thomas Ziegelhoffer, Jill L. Johnson and Elizabeth the complexity of the Hsp70 `chaperone machine' that mediates early steps of protein folding in cells. Address of protein folding and translocation through their ability to recognize non-native conformations of proteins

Craig, Elizabeth A

92

Approximate Inference and Protein-Folding  

E-Print Network (OSTI)

Approximate Inference and Protein-Folding Chen Yanover and Yair Weiss School of Computer Science Side-chain prediction is an important subtask in the protein-folding problem. We show that #12;nding algorithms, including a widely used protein-folding software (SCWRL). 1 Introduction Inference in graphical

Weiss, Yair

93

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

94

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

95

Introducing Protein Folding Using Simple Models  

E-Print Network (OSTI)

We discuss recent theoretical developments in the study of simple lattice models of proteins. Such models are designed to understand general features of protein structures and mechanism of folding. Among the topics covered are (i) the use of lattice models to understand the selection of the limited set of viable protein folds; (ii) the relationship between structure and sequence spaces; (iii) the application of lattice models for studying folding mechanisms (topological frustration, kinetic partitioning mechanism). Classification of folding scenarios based on the intrinsic thermodynamic properties of a sequence (namely, the collapse and folding transition temperatures) is outlined. A brief discussion of random heteropolymer model is also presented.

D. Thirumalai; D. K. Klimov

2001-01-04T23:59:59.000Z

96

Structural and Energetic Heterogeneity in Protein Folding  

E-Print Network (OSTI)

A general theoretical framework is developed using free energy functional methods to understand the effects of heterogeneity in the folding of a well-designed protein. Native energetic heterogeneity arising from non-uniformity in native stability, as well as entropic heterogeneity intrinsic to the topology of the native structure are both investigated as to their impact on the folding free energy landscape and resulting folding mechanism. Given a minimally frustrated protein, both structural and energetic heterogeneity lower the thermodynamic barrier to folding, and designing in sufficient heterogeneity can eliminate the barrier at the folding transition temperature. Sequences with different distributions of stability throughout the protein and correspondingly different folding mechanisms may still be good folders to the same structure. This theoretical framework allows for a systematic study of the coupled effects of energetics and topology in protein folding, and provides interpretations and predictions for future experiments which may investigate these effects.

Steven S. Plotkin; Jose N. Onuchic

2000-09-27T23:59:59.000Z

97

Protein Folding Trajectories Analysis: Summarization, Event Detection and Consensus Partial Folding Pathway  

E-Print Network (OSTI)

Protein Folding Trajectories Analysis: Summarization, Event Detection and Consensus Partial Folding in protein folding trajectories. We pro- pose an approach that employs the simplicity of contact maps and po- tentially cure diseases caused by misfolding. The protein folding problem is therefore one

Yang, Hui

98

Computational investigations of folded self-avoiding walks related to protein folding  

E-Print Network (OSTI)

Computational investigations of folded self-avoiding walks related to protein folding Jacques M, protein folding, protein structure prediction 1. Introduction Self-avoiding walks (SAWs) have been studied, 9], authors of this manuscript have investigated some dynamic protein folding models. They have

Paris-Sud XI, Université de

99

A review of recent advances in ab initio protein folding by the Folding@home project  

E-Print Network (OSTI)

A review of recent advances in ab initio protein folding by the Folding@home project William Ito molecular simulations of protein folding. Thanks to engineering innovations like a Graphical Processing Unit power, allowing it to simulate longer and more complex protein folding mechanisms than ever before

100

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

Note: This page contains sample records for the topic "faults folds grabens" 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

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

102

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

103

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

104

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

105

Protein-Folding Landscapes in Multi-Chain Systems  

E-Print Network (OSTI)

a common approach to studying protein folding in isolationto investigate protein folding in the presence of multipleProtein-Folding Landscapes in Multi-Chain Systems Major

Cellmer, Troy; Bratko, Dusan; Prausnitz, John M.; Blanch, Harvey

2005-01-01T23:59:59.000Z

106

Protein-folding via divide-and-conquer optimization  

E-Print Network (OSTI)

Protein-folding vianumerical optimization Protein folding via divide-and-premise brings the protein-folding problem into the realm of

Oliva, Ricardo; Crivelli, Silvia; Meza, Juan

2004-01-01T23:59:59.000Z

107

Intermediates and the folding of proteins L and G  

E-Print Network (OSTI)

unifying mechanism for protein folding? [Review]. Trends incoordinate for protein folding. Journal of Chemical PhysicsIntermediates can accelerate protein folding. Proceedings of

Brown, Scott; Head-Gordon, Teresa

2008-01-01T23:59:59.000Z

108

Folding amphipathic helices into membranes: Amphiphilicity trumps hydrophobicity  

E-Print Network (OSTI)

C. (1999). Membrane protein folding and stability: PhysicalA. S. & Hristova, K. (1998). Protein folding in membranes:Mutational analysis of protein folding and stability. In

Fernández-Vidal, Mónica; Jayasinghe, Sajith; Ladokhin, Alexey S; White, Stephen H

2007-01-01T23:59:59.000Z

109

Extending the theoretical framework of protein folding dynamics  

E-Print Network (OSTI)

Stochastic Dynamics on a Protein Folding Energy Landscape .and J. N. Onuchic. Protein folding funnels: kinetic pathwaysthe energy landscape of protein folding. Proteins: Struct.

Yang, Sichun

2006-01-01T23:59:59.000Z

110

On the rough folding landscape of green fluorescent protein  

E-Print Network (OSTI)

H. (2008). Understanding protein folding: small proteins inmultiple pathways of protein folding. Chem Biol 2, 255-60.Polymer principles and protein folding. Protein Sci 8, 1166-

Andrews, Benjamin Thomas

2008-01-01T23:59:59.000Z

111

Protein Vivisection Reveals Elusive Intermediates in Folding  

SciTech Connect

Although most folding intermediates escape detection, their characterization is crucial to the elucidation of folding mechanisms. Here, we outline a powerful strategy to populate partially unfolded intermediates: A buried aliphatic residue is substituted with a charged residue (e.g., Leu {yields} Glu{sup -}) to destabilize and unfold a specific region of the protein. We applied this strategy to ubiquitin, reversibly trapping a folding intermediate in which the {beta}5-strand is unfolded. The intermediate refolds to a native-like structure upon charge neutralization under mildly acidic conditions. Characterization of the trapped intermediate using NMR and hydrogen exchange methods identifies a second folding intermediate and reveals the order and free energies of the two major folding events on the native side of the rate-limiting step. This general strategy may be combined with other methods and have broad applications in the study of protein folding and other reactions that require trapping of high-energy states.

Zheng, Zhongzhou; Sosnick, Tobin R. (UC)

2010-05-25T23:59:59.000Z

112

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

113

Cotranslational protein folding with L-systems  

E-Print Network (OSTI)

Abstract. A protein molecule adopts a specific 3D structure, necessary for its function in the cell, through a process of folding. Modelling the folding process and predicting the final fold from the unique amino acid sequence remain challenging problems. We have previously described the application of L-systems, parallel rewriting rules, to modelling protein folding using two complementary approaches: a physics-based approach, using calculations of interatomic forces, and a knowledge-based approach, using data from fragments of known protein structures. Here we describe a model combining these two approaches creating an adaptive stochastic open L-systems model of protein folding. L-systems were originally developed to model growth and development. Here we also describe extensions of our L-systems models to investigate cotranslational protein folding, i.e. folding during protein biosynthesis on the ribosome, which is increasingly thought to play an important role. We demonstrate that cotranslational folding fits very naturally into the L-systems framework. Key words: Cotranslational protein folding, L-systems 1

Gemma B. Danks; Susan Stepney; Leo S. D. Caves

114

Protein Folding: Generalized-Ensemble Algorithms  

Science Journals Connector (OSTI)

We briefly review the development of generalized-ensemble optimization techniques and their application since publication of “Protein Folding: Generalized-Ensemble Algorithms” was published in...

Ulrich H. E. Hansmann

2009-01-01T23:59:59.000Z

115

Simulating Temperature Jumps for Protein Folding Studies.  

E-Print Network (OSTI)

??Protein folding is described as a dynamic process of an ensemble of molecules reaching well-defined three dimensional structures to achieve biological activity from linear amino… (more)

Kim, Seonah

2007-01-01T23:59:59.000Z

116

Microsoft Word - RNA_folding_Herschlag.doc  

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

March 2003 Exploring the Folding Landscape of a Structured RNA by SAXS Rick Russell, Ian S. Millett, Sebastian Doniach and Daniel Herschlag Stanford University One goal of genome...

117

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

118

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

119

Structural Insight into RNA Hairpin Folding Intermediates Gregory R. Bowman,  

E-Print Network (OSTI)

on the Folding@home infrastructure to obtain better sampling and, therefore, greater insight into RNA folding

Guibas, Leonidas J.

120

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

Note: This page contains sample records for the topic "faults folds grabens" 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

3.2 Energetics of Protein Folding  

Science Journals Connector (OSTI)

Protein is only marginally stable as a result of a small net difference between large contributions of stabilizing and destabilizing forces. This article reviews the contribution of various energetic factors such as the hydrophobic effect, hydrogen bonding, electrostatic interaction, and conformation entropy to protein folding. Based on our current understanding of the protein-folding energetic, strategies to improve protein stability are discussed.

K.-B. Wong; T.-H. Yu; C.-H. Chan

2012-01-01T23:59:59.000Z

122

STATISTICAL ANALYSIS OF PROTEIN FOLDING KINETICS  

E-Print Network (OSTI)

STATISTICAL ANALYSIS OF PROTEIN FOLDING KINETICS AARON R. DINNER New Chemistry Laboratory for Protein Folding: Advances in Chemical Physics, Volume 120. Edited by Richard A. Friesner. Series Editors Experimental and theoretical studies have led to the emergence of a unified general mechanism for protein

Dinner, Aaron

123

Fan-fold shielded electrical leads  

DOE Patents (OSTI)

Disclosed are fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate. 3 figs.

Rohatgi, R.R.; Cowan, T.E.

1996-06-11T23:59:59.000Z

124

Single-molecule studies of riboswitch folding  

Science Journals Connector (OSTI)

Abstract The folding dynamics of riboswitches are central to their ability to modulate gene expression in response to environmental cues. In most cases, a structural competition between the formation of a ligand-binding aptamer and an expression platform (or some other competing off-state) determines the regulatory outcome. Here, we review single-molecule studies of riboswitch folding and function, predominantly carried out using single-molecule FRET or optical trapping approaches. Recent results have supplied new insights into riboswitch folding energy landscapes, the mechanisms of ligand binding, the roles played by divalent ions, the applicability of hierarchical folding models, and kinetic vs. thermodynamic control schemes. We anticipate that future work, based on improved data sets and potentially combining multiple experimental techniques, will enable the development of more complete models for complex RNA folding processes. This article is part of a Special Issue entitled: Riboswitches.

Andrew Savinov; Christian F. Perez; Steven M. Block

2014-01-01T23:59:59.000Z

125

Using Stochastic Roadmap Simulation to Predict Experimental Quantities in Protein Folding Kinetics: Folding Rates and  

E-Print Network (OSTI)

Using Stochastic Roadmap Simulation to Predict Experimental Quantities in Protein Folding Kinetics for studying protein folding kinetics. It uses the recently intro- duced Stochastic Roadmap Simulation (SRS validate the SRS method and indicate its potential as a general tool for studying protein folding kinetics

Pratt, Vaughan

126

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

127

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...

128

Protein Folding as a Physical Stochastic Process  

E-Print Network (OSTI)

We model protein folding as a physical stochastic process as follows. The unfolded protein chain is treated as a random coil described by SAW (self-avoiding walk). Folding is induced by hydrophobic forces and other interactions, such as hydrogen bonding, which can be taken into account by imposing conditions on SAW. The resulting model is termed CSAW (conditioned self-avoiding walk. Conceptually, the mathematical basis is a generalized Langevin equation. In practice, the model is implemented on a computer by combining SAW and Monte Carlo. To illustrate the flexibility and capabilities of the model, we consider a number of examples, including folding pathways, elastic properties, helix formation, and collective modes.

Kerson Huang

2007-07-17T23:59:59.000Z

129

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

130

Mutagenic effects on protein folding and stability  

E-Print Network (OSTI)

Knowing how sequence information dictates the formation of protein structure is critical for accurate prediction of structure, for de novo protein design, and for understanding protein folding and misfolding. Based on ...

Anderson, Thomas Anthony, 1973-

2002-01-01T23:59:59.000Z

131

Cooperativity and Contact Order in Protein Folding  

E-Print Network (OSTI)

The effects of cooperativity are studied within Go-Lennard-Jones models of proteins by making the contact interactions dependent on the proximity to the native conformation. The kinetic universality classes are found to remain the same as in the absence of cooperativity. For a fixed native geometry, small changes in the effective contact map may affect the folding times in a chance way and to the extent that is comparable to the shift in the folding times due to cooperativity. The contact order controlls folding scenarios: the average times necessary to bring pairs of amino acids into their near native separations depend on the sequential distances within the pairs. This dependence is largely monotonic, regardless of the cooperativity, and the dominant trend could be described by a single parameter like the average contact order. However, it is the deviations from the trend which are usually found to set the net folding times.

Marek Cieplak

2004-01-11T23:59:59.000Z

132

Cooperativity and contact order in protein folding  

Science Journals Connector (OSTI)

The effects of cooperativity are studied within Go-Lennard-Jones models of proteins by making the contact interactions dependent on the proximity to the native conformation. The kinetic universality classes are found to remain the same as in the absence of cooperativity. For a fixed native geometry, small changes in the effective contact map may affect the folding times in a chance way, and, to an extent that is comparable to the shift in the folding times due to cooperativity. The contact order controls folding scenarios: the average times necessary to bring pairs of amino acids into their near native separations depend on the sequential distances within the pairs. This dependence is largely monotonic, regardless of the cooperativity, and the dominant trend could be described by a single parameter like the average contact order. However, it is the deviations from the trend which are usually found to set the net folding times.

Marek Cieplak

2004-03-23T23:59:59.000Z

133

Enhanced sampling and applications in protein folding.  

E-Print Network (OSTI)

??We show that a single-copy tempering method is useful in protein-folding simulations of large scale and high accuracy (explicit solvent, atomic representation, and physics-based potential).… (more)

Zhang, Cheng

2013-01-01T23:59:59.000Z

134

A phenomenological model of protein folding  

E-Print Network (OSTI)

We construct a phenomenological effective field theory model that describes the universality class of biologically active single-strand proteins. The model allows both for an explicit construction of native state protein conformations, and a dynamical description of protein folding and unfolding processes. The model reveals a connection between homochirality and protein collapse, and enables the theoretical investigation of various other aspects of protein folding even in the case of very long polypeptide chains where other methods are not available.

Danielsson, Ulf H; Niemi, Antti J

2009-01-01T23:59:59.000Z

135

Toward a Theory on the Stability of Protein Folding: Challenges for Folding Models  

E-Print Network (OSTI)

We adopt the point of view that analysis of the stability of the protein folding process is central to understanding the underlying physics of folding. Stability of the folding process means that many perturbations do not disrupt the progress from the random coil to the native state. In this paper we explore the stability of folding using established methods from physics and mathematics. Our result is a preliminary theory of the physics of folding. We suggest some tests of these ideas using folding simulations. We begin by supposing that folding events are related in some way to mechanical waves on the molecule. We adopt an analytical approach to the physics which was pioneered by M.V. Berry, (in another context), based upon mathematics developed mainly by R. Thom and V.I. Arnold. We find that the stability of the folding process can be understood in terms of structures known as caustics, which occur in many kinds of wave phenomena. The picture that emerges is that natural selection has given us a set of protein molecules which have mechanical waves that propagate according to several mathematically specific restrictions. Successful simulations of folding can be used to test and constrain these wave motions. With some additional assumptions the theory explains or is consistent with a number of experimental facts about folding. We emphasize that this wave-based approach is fundamentally different from energy-based approaches.

Walter Simmons; Joel L. Weiner

2011-12-28T23:59:59.000Z

136

Review Protein Folding and Misfolding on Surfaces  

E-Print Network (OSTI)

Abstract: Protein folding, misfolding and aggregation, as well as the way misfolded and aggregated proteins affects cell viability are emerging as key themes in molecular and structural biology and in molecular medicine. Recent advances in the knowledge of the biophysical basis of protein folding have led to propose the energy landscape theory which provides a consistent framework to better understand how a protein folds rapidly and efficiently to the compact, biologically active structure. The increased knowledge on protein folding has highlighted its strict relation to protein misfolding and aggregation, either process being in close competition with the other, both relying on the same physicochemical basis. The theory has also provided information to better understand the structural and environmental factors affecting protein folding resulting in protein misfolding and aggregation into ordered or disordered polymeric assemblies. Among these, particular importance is given to the effects of surfaces. The latter, in some cases make possible rapid and efficient protein folding but most often recruit proteins/peptides increasing their local concentration thus favouring misfolding and accelerating the rate of nucleation. It is also emerging that surfaces can modify the path of protein misfolding and aggregation generating oligomers and polymers structurally different from those arising in the bulk solution and endowed with different physical properties and cytotoxicities.

Massimo Stefani

2008-01-01T23:59:59.000Z

137

Protein Folding: A Perspective From Statistical Physics  

E-Print Network (OSTI)

In this paper, we introduce an approach to the protein folding problem from the point of view of statistical physics. Protein folding is a stochastic process by which a polypeptide folds into its characteristic and functional 3D structure from random coil. The process involves an intricate interplay between global geometry and local structure, and each protein seems to present special problems. We introduce CSAW (conditioned self-avoiding walk), a model of protein folding that combines the features of self-avoiding walk (SAW) and the Monte Carlo method. In this model, the unfolded protein chain is treated as a random coil described by SAW. Folding is induced by hydrophobic forces and other interactions, such as hydrogen bonding, which can be taken into account by imposing conditions on SAW. Conceptually, the mathematical basis is a generalized Langevin equation. To illustrate the flexibility and capabilities of the model, we consider several examples, including helix formation, elastic properties, and the transition in the folding of myoglobin. From the CSAW simulation and physical arguments, we find a universal elastic energy for proteins, which depends only on the radius of gyration $R_{g}$ and the residue number $N$. The elastic energy gives rise to scaling laws $R_{g}\\sim N^{\

Jinzhi Lei; Kerson Huang

2010-02-26T23:59:59.000Z

138

Hierarchical Protein Folding Pathways: A Computational Study of Protein Fragments  

E-Print Network (OSTI)

Hierarchical Protein Folding Pathways: A Computational Study of Protein Fragments Nurit Haspel,1 folding model. The model postulates that protein folding is a hierarchical top-down pro- cess. The basic words: protein folding; building blocks; pro- tein structure prediction; hierarchical folding; protein

Haspel, Nurit

139

DYNAMIC INVARIANTS IN PROTEIN FOLDING PATHWAYS REVEALED BY TENSOR ANALYSIS  

E-Print Network (OSTI)

DYNAMIC INVARIANTS IN PROTEIN FOLDING PATHWAYS REVEALED BY TENSOR ANALYSIS Arvind Ramanathan Lane a spatio-temporal analysis of protein folding pathways. We applied our method to folding simulations of how a protein folds into its functionally relevant conformations. Protein folding pathways span over

Langmead, Christopher James

140

FROM GENETIC CODING TO PROTEIN FOLDING Jean-Luc Jestin  

E-Print Network (OSTI)

FROM GENETIC CODING TO PROTEIN FOLDING Jean-Luc Jestin ABSTRACT A discrete classical mechanics (DCM of the genetic code. A DCM model for protein folding allows a set of folding nuclei to be derived for each. A PROTEIN FOLDING MODEL Let us consider the following protein folding model. A chemical group of mass m

Paris-Sud XI, Université de

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141

Predicting Protein Folding Mohammed J. Zaki, Vinay Nadimpally, Deb  

E-Print Network (OSTI)

Predicting Protein Folding Pathways Mohammed J. Zaki, Vinay Nadimpally, Deb Bardhan, Chris Bystroff 1. Predicting Protein Folding Pathways Summary. A structured folding pathway, which is a time ordered sequence of folding events, plays an important role in the protein folding process and hence

Zaki, Mohammed Javeed

142

Data Analysis of Villin Headpiece Subdomain Folding Simulations.  

E-Print Network (OSTI)

seeks to understand the process of protein folding by analyzing the vast amount of data generated while simulating the folding of the villin headpiece. Introduction Protein folding has been called one proteins unlike homology or threading based approaches. Protein folding studies the folding trajectory

143

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

144

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,

145

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

146

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

147

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

148

Solvent-induced forces in protein folding reflections on the protein folding problem  

Science Journals Connector (OSTI)

Abstract It is shown that the solvent induced forces on hydrophilic groups are the strongest ones. The relevance of this finding to protein folding is discussed.

Arieh Ben-Naim

2013-01-01T23:59:59.000Z

149

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

150

Exploring zipping and assembly as a protein folding principle  

E-Print Network (OSTI)

C. Are there pathways for protein folding? Journal de Chimieand the mechanism of protein folding. Ann Rev Biochem 1982;Baldwin RL. How does protein folding get started? TRENDS in

Voelz, Vince A; Dill, Ken A

2007-01-01T23:59:59.000Z

151

Protein folding using contact maps Michele Vendruscolo and Eytan Domany  

E-Print Network (OSTI)

Protein folding using contact maps Michele Vendruscolo and Eytan Domany Department of Physics 26 I. INTRODUCTION Computational approaches to protein folding are divided into two main categories protein fold prediction. Contact maps are a particularly manageable representation of protein structure

Domany, Eytan

152

THE UNIVERSITY OF CHICAGO CHARACTERIZATION OF PROTEIN FOLDING INTERMEDIATES  

E-Print Network (OSTI)

THE UNIVERSITY OF CHICAGO CHARACTERIZATION OF PROTEIN FOLDING INTERMEDIATES FOR DELINEATION ............................................................................................................ 1 1.1 Why study protein folding .............................................................................. 3 1.2.1 How fast should a protein fold ........................................................... 3

Sosnick, Tobin R.

153

Increasing Stability Reduces Conformational Heterogeneity in a Protein Folding  

E-Print Network (OSTI)

Increasing Stability Reduces Conformational Heterogeneity in a Protein Folding Intermediate, the results show that protein folding intermediates are ensembles of different structural forms direct experi- mental evidence in support of a basic tenet of energy landscape theory for protein folding

154

Protein Folding: A New Geometric Analysis  

E-Print Network (OSTI)

A geometric analysis of protein folding, which complements many of the models in the literature, is presented. We examine the process from unfolded strand to the point where the strand becomes self-interacting. A central question is how it is possible that so many initial configurations proceed to fold to a unique final configuration. We put energy and dynamical considerations temporarily aside and focus upon the geometry alone. We parameterize the structure of an idealized protein using the concept of a ribbon from differential geometry. The deformation of the ribbon is described by introducing a generic twisting Ansatz. The folding process in this picture entails a change in shape guided by the local amino acid geometry. The theory is reparamaterization invariant from the start, so the final shape is independent of folding time. We develop differential equations for the changing shape. For some parameter ranges, a sine-Gordon torsion soliton is found. This purely geometric waveform has properties similar to dynamical solitons. Namely: A threshold distortion of the molecule is required to initiate the soliton, after which, small additional distortions do not change the waveform. In this analysis, the soliton twists the molecule until bonds form. The analysis reveals a quantitative relationship between the geometry of the amino acids and the folded form.

Walter A. Simmons; Joel L. Weiner

2008-09-11T23:59:59.000Z

155

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

156

Isolation, folding and structural investigations of the amino...  

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

folding and structural investigations of the amino acid transporter OEP16. Isolation, folding and structural investigations of the amino acid transporter OEP16. Abstract: Membrane...

157

Single-Molecule Dynamics Reveals Cooperative Binding-Folding...  

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

Molecule Dynamics Reveals Cooperative Binding-Folding in Protein Recognition . Single-Molecule Dynamics Reveals Cooperative Binding-Folding in Protein Recognition . Abstract: The...

158

Journal Article: Folding and association of a homotetrameric...  

Office of Scientific and Technical Information (OSTI)

Folding and association of a homotetrameric protein complex in an all-atom Go model Citation Details Title: Folding and association of a homotetrameric protein complex in an...

159

Protein Folding Pathways Implementing Dihedral Angle Variable Speed  

Science Journals Connector (OSTI)

Protein folding remains as an impossible riddle biologist must ... requirements make it difficult to obtain clues regarding protein folding nature. The procedure presented in this paper...

Mikel Diez; Victor Petuya; Mónica Urizar…

2012-01-01T23:59:59.000Z

160

Topologies to geometries in protein folding: Hierarchical and nonhierarchical scenarios  

E-Print Network (OSTI)

Topologies to geometries in protein folding: Hierarchical and nonhierarchical scenarios Ariel Ferna presents a method to portray protein folding dynamics at a coarse resolution, based on a pattern

Berry, R. Stephen

Note: This page contains sample records for the topic "faults folds grabens" 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

Coarse grained description of protein folding  

Science Journals Connector (OSTI)

We consider two- and three-dimensional lattice models of proteins that were characterized previously. We coarse grain their folding dynamics by reducing it to transitions between effective states. We consider two methods of selection of the effective states. The first method is based on the steepest descent mapping of states to underlying local energy minima and the other involves an additional projection to maximally compact conformations. Both methods generate connectivity patterns that allow one to distinguish between the good and bad folders. Connectivity graphs corresponding to the folding funnel have few loops and are thus treelike. The Arrhenius law for the median folding time of a 16-monomer sequence is established and the corresponding barrier is related to easily identifiable kinetic trap states.

Marek Cieplak and Trinh Xuan Hoang

1998-09-01T23:59:59.000Z

162

Exploring the mechanisms of protein folding  

E-Print Network (OSTI)

Neither of the two prevalent theories, namely thermodynamic stability and kinetic stability, provides a comprehensive understanding of protein folding. The thermodynamic theory is misleading because it assumes that free energy is the exclusive dominant mechanism of protein folding, and attributes the structural transition from one characteristic state to another to energy barriers. Conversely, the concept of kinetic stability overemphasizes dominant mechanisms that are related to kinetic factors. This article explores the stability condition of protein structures from the viewpoint of meso-science, paying attention to the compromise in the competition between minimum free energy and other dominant mechanisms. Based on our study of complex systems, we propose that protein folding is a meso-scale, dissipative, nonlinear and non-equilibrium process that is dominated by the compromise between free energy and other dominant mechanisms such as environmental factors. Consequently, a protein shows dynamic structures,...

Xu, Ji; Ren, Ying; Li, Jinghai

2013-01-01T23:59:59.000Z

163

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

164

Toward a Theory on the Stability of Protein Folding: Challenges for Folding Models  

E-Print Network (OSTI)

We adopt the point of view that analysis of the stability of the protein folding process is central to understanding the underlying physics of folding. Stability of the folding process means that many perturbations do not disrupt the progress from the random coil to the native state. In this paper we explore the stability of folding using established methods from physics and mathematics. Our result is a preliminary theory of the physics of folding. We suggest some tests of these ideas using folding simulations. We begin by supposing that folding events are related in some way to mechanical waves on the molecule. We adopt an analytical approach to the physics which was pioneered by M.V. Berry, (in another context), based upon mathematics developed mainly by R. Thom and V.I. Arnold. We find that the stability of the folding process can be understood in terms of structures known as caustics, which occur in many kinds of wave phenomena. The picture that emerges is that natural selection has given us a set of prot...

Simmons, Walter

2011-01-01T23:59:59.000Z

165

Energetic Components of Cooperative Protein Folding  

E-Print Network (OSTI)

A new lattice protein model with a four-helix bundle ground state is analyzed by a parameter-space Monte Carlo histogram technique to evaluate the effects of an extensive variety of model potentials on folding thermodynamics. Cooperative helical formation and contact energies based on a 5-letter alphabet are found to be insufficient to satisfy calorimetric and other experimental criteria for two-state folding. Such proteinlike behaviors are predicted, however, by models with polypeptide-like local conformational restrictions and environment-dependent hydrogen bonding-like interactions.

Huseyin Kaya; Hue Sun Chan

2000-10-11T23:59:59.000Z

166

Protein Folding in Contact Map Space  

Science Journals Connector (OSTI)

Changing a few contacts in a contact map corresponds to a large scale move in confrontation space; hence, one gains a lot by using the contact map representation for protein folding. We developed an efficient search procedure in the space of physical contact maps, which could identify the native fold as of the lowest free energy, provided on had a free energy function whose ground state is the native map. We prove rigorously that the widely used pairwise contact approximation to the free energy cannot stabilize even a single protein's native map. Testing the native map against a set of decoys obtained by gapless threading, one may be misled to the opposite conclusion.

M. Vendruscolo; R. Najmanovich; E. Domany

1999-01-18T23:59:59.000Z

167

Energetic Components of Cooperative Protein Folding  

Science Journals Connector (OSTI)

A new lattice protein model with a four-helix bundle ground state is analyzed by a parameter-space Monte Carlo histogram technique to evaluate the effects of an extensive variety of model potentials on folding thermodynamics. Cooperative helical formation and contact energies based on a 5-letter alphabet are found to be insufficient to satisfy calorimetric and other experimental criteria for two-state folding. Such proteinlike behaviors are predicted, however, by models with polypeptidelike local conformational restrictions and environment-dependent hydrogen-bondinglike interactions.

Hüseyin Kaya and Hue Sun Chan

2000-11-27T23:59:59.000Z

168

Circular permutant GFP insertion folding reporters  

SciTech Connect

Provided are methods of assaying and improving protein folding using circular permutants of fluorescent proteins, including circular permutants of GFP variants and combinations thereof. The invention further provides various nucleic acid molecules and vectors incorporating such nucleic acid molecules, comprising polynucleotides encoding fluorescent protein circular permutants derived from superfolder GFP, which polynucleotides include an internal cloning site into which a heterologous polynucleotide may be inserted in-frame with the circular permutant coding sequence, and which when expressed are capable of reporting on the degree to which a polypeptide encoded by such an inserted heterologous polynucleotide is correctly folded by correlation with the degree of fluorescence exhibited.

Waldo, Geoffrey S. (Santa Fe, NM); Cabantous, Stephanie (Los Alamos, NM)

2011-06-14T23:59:59.000Z

169

Circular permutant GFP insertion folding reporters  

SciTech Connect

Provided are methods of assaying and improving protein folding using circular permutants of fluorescent proteins, including circular permutants of GFP variants and combinations thereof. The invention further provides various nucleic acid molecules and vectors incorporating such nucleic acid molecules, comprising polynucleotides encoding fluorescent protein circular permutants derived from superfolder GFP, which polynucleotides include an internal cloning site into which a heterologous polynucleotide may be inserted in-frame with the circular permutant coding sequence, and which when expressed are capable of reporting on the degree to which a polypeptide encoded by such an inserted heterologous polynucleotide is correctly folded by correlation with the degree of fluorescence exhibited.

Waldo, Geoffrey S. (Santa Fe, NM); Cabantous, Stephanie (Los Alamos, NM)

2008-06-24T23:59:59.000Z

170

Circular permutant GFP insertion folding reporters  

DOE Patents (OSTI)

Provided are methods of assaying and improving protein folding using circular permutants of fluorescent proteins, including circular permutants of GFP variants and combinations thereof. The invention further provides various nucleic acid molecules and vectors incorporating such nucleic acid molecules, comprising polynucleotides encoding fluorescent protein circular permutants derived from superfolder GFP, which polynucleotides include an internal cloning site into which a heterologous polynucleotide may be inserted in-frame with the circular permutant coding sequence, and which when expressed are capable of reporting on the degree to which a polypeptide encoded by such an inserted heterologous polynucleotide is correctly folded by correlation with the degree of fluorescence exhibited.

Waldo, Geoffrey S.; Cabantous, Stephanie

2013-04-16T23:59:59.000Z

171

Nonlinear conformation of secondary protein folding  

E-Print Network (OSTI)

A model to describe the mechanism of conformational dynamics in secondary protein based on matter interactions is proposed. The approach deploys the lagrangian method by imposing certain symmetry breaking. The protein backbone is initially assumed to be nonlinear and represented by the Sine-Gordon equation, while the nonlinear external bosonic sources is represented by $\\phi^4$ interaction. It is argued that the nonlinear source induces the folding pathway in a different way than the previous work with initially linear backbone. Also, the nonlinearity of protein backbone decreases the folding speed.

Januar, M; Handoko, L T

2012-01-01T23:59:59.000Z

172

CSAW: a dynamical model of protein folding  

E-Print Network (OSTI)

CSAW (conditioned self-avoiding walk) is a model of protein folding that combines SAW (self-avoiding walk) with Monte-Carlo. It simulates the Brownian motion of a chain molecule in the presence of interactions, both among chain residues, and with the environment. In a first model that includes the hydrophobic effect and hydrogen bonding, a chain of 30 residues folds into a native state with stable secondary and tertiary structures. The process starts with a rapid collapse into an intermediate "molten globule", which slowly decays into the native state afer a relatively long quiescent period. The behavior of the radius of gyration mimics experimental data.

Kerson Huang

2006-01-12T23:59:59.000Z

173

Circular permutant GFP insertion folding reporters  

SciTech Connect

Provided are methods of assaying and improving protein folding using circular permutants of fluorescent proteins, including circular permutants of GFP variants and combinations thereof. The invention further provides various nucleic acid molecules and vectors incorporating such nucleic acid molecules, comprising polynucleotides encoding fluorescent protein circular permutants derived from superfolder GFP, which polynucleotides include an internal cloning site into which a heterologous polynucleotide may be inserted in-frame with the circular permutant coding sequence, and which when expressed are capable of reporting on the degree to which a polypeptide encoded by such an inserted heterologous polynucleotide is correctly folded by correlation with the degree of fluorescence exhibited.

Waldo, Geoffrey S; Cabantous, Stephanie

2013-02-12T23:59:59.000Z

174

Algorithmic design of self-folding polyhedra  

Science Journals Connector (OSTI)

...chosen according to an algorithm described below. Fifty samples of each net were self-folded in the experiments. We used Autodesk AutoCAD to draw nets and then printed them on transparent sheets to make photomasks. Sides of a panel measured 300 {mu...

Shivendra Pandey; Margaret Ewing; Andrew Kunas; Nghi Nguyen; David H. Gracias; Govind Menon

2011-01-01T23:59:59.000Z

175

Simultaneous Alignment and Folding of Protein Sequences  

E-Print Network (OSTI)

is to predict for every input sequence the minimum free-energy non-crossing structure (in O(n3 ) time function. Since the structure of RNA is evolu- tionarily more conserved than its sequence, predicting a folding with minimal free energy [5, 6, 7, 8, 9]. Albeit this so-named thermodynamic approach is a success

Gifford, David K.

176

Critical aspects of hierarchical protein folding  

E-Print Network (OSTI)

We argue that the first order folding transitions of proteins observed at physiological chemical conditions end in a critical point for a given temperature and chemical potential of the surrounding water. We investigate this critical point using a hierarchical Hamiltonian and determine its universality class. This class differs qualitatively from those of other known models.

Alex Hansen; Mogens H. Jensen; Kim Sneppen; Giovanni Zocchi

1998-01-13T23:59:59.000Z

177

Solvent-induced forces in protein folding  

SciTech Connect

The solvent-induced forces between various groups on the protein are examined. It is found that the intramolecular hydrophilic forces are likely to be the strongest forces mediated through the solvent. It is argued that these are probably the most important solvent-induced driving forces in the process of protein folding.

Ben-Naim, A. (Hebrew Univ., Jerusalem (Israel))

1990-08-23T23:59:59.000Z

178

Folded-path optical analysis gas cell  

DOE Patents (OSTI)

A folded-path gas cell employs an elliptical concave mirror in confronting relationship to two substantially spherical concave mirrors. At least one of the spherical mirrors, and usually both, are formed with an added cylindrical component to increase orthogonal focii coincidence and thereby to increase the radiation energy throughput characteristic of the cell.

Carangelo, Robert M. (Glastonbury, CT); Wright, David D. (Vershire, VT)

1995-01-01T23:59:59.000Z

179

Optimization of a Microfluidic Mixer for Studying Protein Folding Kinetics  

E-Print Network (OSTI)

Optimization of a Microfluidic Mixer for Studying Protein Folding Kinetics David E. Hertzog with numerical simulations to minimize the mixing time of a microfluidic mixer developed for protein folding reported continuous flow mixer for protein folding. Fast events in protein folding often occur

Santiago, Juan G.

180

Early Events in Protein Folding Explored by Rapid Mixing Methods  

E-Print Network (OSTI)

15 Early Events in Protein Folding Explored by Rapid Mixing Methods Heinrich Roder, Kosuke Maki for Understanding Protein Folding As with any complex reaction, time-resolved data are essential for elucidating the mechanism of protein folding. Even in cases where the whole process of folding occurs in a single step

Roder, Heinrich

Note: This page contains sample records for the topic "faults folds grabens" 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

COMMUNICATION First Principles Prediction of Protein Folding Rates  

E-Print Network (OSTI)

COMMUNICATION First Principles Prediction of Protein Folding Rates Derek A. Debe and William A studies have demonstrated that many small, single-domain proteins fold via simple two-state kinetics. We. # 1999 Academic Press Keywords: protein folding; kinetics; diffusion; fold topology; nucleation

Goddard III, William A.

182

Cellular mechanisms of membrane protein folding William R Skach  

E-Print Network (OSTI)

Cellular mechanisms of membrane protein folding William R Skach The membrane protein­folding. This Perspective will focus on emerging evidence that the RTC functions as a protein-folding machine that restricts. The process of polytopic (multispanning) membrane protein folding can be viewed as a series of sequential

Cai, Long

183

Nonlinear dynamics of secondary protein folding Natalia G. Berloff  

E-Print Network (OSTI)

Nonlinear dynamics of secondary protein folding Natalia G. Berloff Department of Applied field varies. Pacs: 87.15.-v, 87.15By, 05.45.-a, 41.20Jb Keywords: Folding pathway, protein folding interaction and hydrophobic effects. The most common shapes of the protein folding are alpha () and beta

184

Protein folding by zipping and assembly S. Banu Ozkan*  

E-Print Network (OSTI)

Protein folding by zipping and assembly S. Banu Ozkan* , G. Albert Wu* , John D. Chodera, CA, May 2, 2007 (received for review April 13, 2006) How do proteins fold so quickly? Some denatured proteins fold to their native structures in only microseconds, on average, implying that there is a folding

Southern California, University of

185

Polypeptide chain collapse and protein folding Jayant B. Udgaonkar  

E-Print Network (OSTI)

Review Polypeptide chain collapse and protein folding Jayant B. Udgaonkar National Centre is an integral component of a protein folding reaction. In this review, exper- imental characterization solvent [2]. A distinctive physical feature of any protein folding reaction is the greater than 3-fold

186

Automated Discovery of Structural Signatures of Protein Fold and Function  

E-Print Network (OSTI)

Automated Discovery of Structural Signatures of Protein Fold and Function Marcel Turcotte1 sys- tematically for protein fold signatures, we have explored the use of Inductive Logic Programming fold. The work showed that signatures of protein folds exist, about half of rules discov- ered

Muggleton, Stephen H.

187

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

188

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

189

Heteropolymer Folding 9 1. C. Gh'elis and J. Yon, Protein Folding (Academic, New York, 1982).  

E-Print Network (OSTI)

Heteropolymer Folding 9 References 1. C. Gh'elis and J. Yon, Protein Folding (Academic, New York, editor, The Protein Folding Problem (Westview, Boulder, 1984).. 5. N. Gâ??o, Annu. Rev. Biophys. Bioeng. 12 for Protein Folding, Europhys. Lett. 6, 307 (1988). 14. G. Iori, E. Marinari, G. Parisi and M. V. Struglia

Roma "La Sapienza", Università di

190

Planning to fold multiple objects from a single self-folding sheet  

E-Print Network (OSTI)

This paper considers planning and control algorithms that enable a programmable sheet to realize different shapes by autonomous folding. Prior work on self-reconfiguring machines has considered modular systems in which ...

An, Byoung Kwon

191

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

192

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

193

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

194

New Monte Carlo Algorithm for Protein Folding  

Science Journals Connector (OSTI)

We demonstrate that the recently introduced pruned-enriched Rosenbluth method leads to extremely efficient algorithms for the folding of simple model proteins. We test them on several models for lattice heteropolymers, and compare the results to published Monte Carlo studies. In all cases our algorithms are faster than previous ones, and in several cases we find new minimal energy states. In addition, our algorithms give estimates for the partition sum at finite temperatures.

Helge Frauenkron; Ugo Bastolla; Erwin Gerstner; Peter Grassberger; Walter Nadler

1998-04-06T23:59:59.000Z

195

Simple Models of the Protein Folding Problem  

E-Print Network (OSTI)

The protein folding problem has attracted an increasing attention from physicists. The problem has a flavor of statistical mechanics, but possesses the most common feature of most biological problems -- the profound effects of evolution. I will give an introduction to the problem, and then focus on some recent work concerning the so-called ``designability principle''. The designability of a structure is measured by the number of sequences that have that structure as their unique ground state. Structures differ drastically in terms of their designability; highly designable structures emerge with a number of associated sequences much larger than the average. These highly designable structures 1) possess ``proteinlike'' secondary structures and motifs, 2) are thermodynamically more stable, and 3) fold faster than other structures. These results suggest that protein structures are selected in nature because they are readily designed and stable against mutations, and that such selection simultaneously leads to thermodynamic stability and foldability. According to this picture, a key to the protein folding problem is to understand the emergence and the properties of the highly designable structures.

Chao Tang

1999-12-26T23:59:59.000Z

196

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

197

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

198

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

199

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

200

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

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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

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

202

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

203

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

204

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

205

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...

206

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

207

Structure of a Folding Intermediate Reveals the Interplay Between Core and Peripheral Elements in RNA Folding  

SciTech Connect

Though the molecular architecture of many native RNA structures has been characterized, the structures of folding intermediates are poorly defined. Here, we present a nucleotide-level model of a highly structured equilibrium folding intermediate of the specificity domain of the Bacillus subtilis RNase P RNA, obtained using chemical and nuclease mapping, circular dichroism spectroscopy, small-angle X-ray scattering and molecular modeling. The crystal structure indicates that the 154 nucleotide specificity domain is composed of several secondary and tertiary structural modules. The structure of the intermediate contains modules composed of secondary structures and short-range tertiary interactions, implying a sequential order of tertiary structure formation during folding. The intermediate lacks the native core and several long-range interactions among peripheral regions, such as a GAAA tetraloop and its receptor. Folding to the native structure requires the local rearrangement of a T-loop in the core in concert with the formation of the GAAA tetraloop-receptor interaction. The interplay of core and peripheral structure formation rationalizes the high degree of cooperativity observed in the folding transition leading to the native structure.

Baird, Nathan J.; Westhof, Eric; Qin, Hong; Pan, Tao; Sosnick, Tobin R. (UC); (CNFRS)

2010-07-13T23:59:59.000Z

208

Structural traps I, tectonic fold traps  

SciTech Connect

This book contains studies of fields that exist because of the presence of an anticline; without the anticline there would be no trap. The fields described in this volume illustrate the complex nature of a trap type that some explorationists mistakenly regard as simple and therefore not worthy of close scrutiny. Anticlinal traps are like all other fields - each has its own peculiar personality. Many of the fields in this volume are sourced from continentally derived organic matter. All have sandstone reservoirs. Most have shale seals, but one, Sarir, has an evaporite seal. Many are faulted anticlines. Some of the anticlines formed in a compressional tectonic setting, whereas others formed in a tensional tectonic setting.

Beaumont, E.A.; Foster, N.H.

1990-01-01T23:59:59.000Z

209

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

210

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

211

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

212

Solvent-Mediated Folding of a Doubly Charged Anion. | EMSL  

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

Solvent-Mediated Folding of a Doubly Charged Anion. Solvent-Mediated Folding of a Doubly Charged Anion. Abstract: The microsolvation of suberate dianion, -O2C(CH2)6CO2-, with two...

213

Computational and experimental investigations of forces in protein folding  

E-Print Network (OSTI)

in protein folding is essential to the understanding and treatment of protein misfolding diseases. When proteins fold, a significant amount of surface area is buried in the protein interior. It has long been known that burial of hydrophobic surface area...

Schell, David Andrew

2005-02-17T23:59:59.000Z

214

Why are MD simulated protein folding times wrong? Dmitry Nerukh  

E-Print Network (OSTI)

Why are MD simulated protein folding times wrong? Dmitry Nerukh Unilever Centre for Molecular.ac.uk The question of significant deviations of protein folding times simulated using molecular dynamics from

Nerukh, Dmitry

215

New Crystal Structures Lift Fog around Protein Folding  

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

New Crystal Structures Lift Fog around Protein Folding New Crystal Structures Lift Fog around Protein Folding Print Wednesday, 25 July 2012 00:00 Nature's proteins set a high bar...

216

Experimental and Computational Studies on Protein Folding, Misfolding and Stability  

E-Print Network (OSTI)

Proteins need fold to perform their biological function. Thus, understanding how proteins fold could be the key to understanding life. In the first study, the stability and structure of several !-hairpin peptide variants derived from the C...

Wei, Yun

2010-07-14T23:59:59.000Z

217

Protein Folding Simulation in CCP Luca Bortolussi1  

E-Print Network (OSTI)

Protein Folding Simulation in CCP Luca Bortolussi1 , Alessandro Dal Pal`u1 , Agostino Dovier1 as the protein folding. This problem is fundamental for biological and pharmaceutical research. Currently

Bortolussi, Luca

218

Protein Folding Simulation by Two-Stage Optimization  

Science Journals Connector (OSTI)

This paper proposes a two-stage optimization approach for protein folding simulation in the FCC lattice, inspired from...

A. Dayem Ullah; L. Kapsokalivas; M. Mann…

2009-01-01T23:59:59.000Z

219

Distribution of Protein Folds in the Three Superkingdoms of Life  

E-Print Network (OSTI)

Distribution of Protein Folds in the Three Superkingdoms of Life Yuri I. Wolf,1,4 Steven E. Brenner Pharmacology and Biological Chemistry, Northwestern University, Chicago, Illinois 60611 USA A sensitive protein-fold to protein kinases, -propellers and TIM-barrels. The observed diversity of protein folds in different

220

Combinatorial Problems on Strings with Applications to Protein Folding  

E-Print Network (OSTI)

Combinatorial Problems on Strings with Applications to Protein Folding Alantha Newman MIT San Jose, CA 95120, USA ruhl@almaden.ibm.com Abstract We consider the problem of protein folding in linear time. 1 Introduction We consider the problem of protein folding in the HP model on the three

Newman, Alantha

Note: This page contains sample records for the topic "faults folds grabens" 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

Protein Folding Simulation by Two-Stage Optimization  

E-Print Network (OSTI)

Protein Folding Simulation by Two-Stage Optimization A. Dayem Ullah1 , L. Kapsokalivas1 , M. Mann2 propose a two-stage optimization approach for protein folding simulation in the FCC lattice, inspired from procedure based on simulated annealing alone. 1 Introduction The question of how proteins fold and whether

Will, Sebastian

222

Protein folding with stochastic L-systems Gemma Danks1  

E-Print Network (OSTI)

Protein folding with stochastic L-systems Gemma Danks1 , Susan Stepney1 and Leo Caves1 1 University-like structures. Models of protein folding vary in complexity and the amount of prior knowledge they contain). The energy landscape theory of protein folding (Onuchic et al., 1997) predicts a rugged funnel-like energy

Stepney, Susan

223

Protein Folding Challenge and Theoretical Computer Science Somenath Biswas  

E-Print Network (OSTI)

Protein Folding Challenge and Theoretical Computer Science Somenath Biswas Department of Computer the chain of amino acids that defines a protein. The protein folding problem is: given a sequence of amino to use an efficient algorithm to carry out protein folding. The atoms in a protein molecule attract each

Biswas, Somenath

224

Femtomole Mixer for Microsecond Kinetic Studies of Protein Folding  

E-Print Network (OSTI)

Femtomole Mixer for Microsecond Kinetic Studies of Protein Folding David E. Hertzog,, Xavier a microfluidic mixer for studying protein folding and other reactions with a mixing time of 8 µs and sample) measurements of single-stranded DNA. We also demon- strate the feasibility of measuring fast protein folding

Michalet, Xavier

225

Polymer Collapse, Protein Folding, and the Percolation Threshold  

E-Print Network (OSTI)

Polymer Collapse, Protein Folding, and the Percolation Threshold HAGAI MEIROVITCH University (Macromolecules 1989, 22, 3986­3997) to study protein folding, where H and P are the hydrophobic and polar amino; computer simulation; collapse transition; protein folding Introduction The behavior of dilute polymer

Meirovitch, Hagai

226

Thermodynamics of Protein Folding from Coarse-Grained Models' Perspectives  

E-Print Network (OSTI)

8 Thermodynamics of Protein Folding from Coarse-Grained Models' Perspectives Michael Bachmann applications. In this lecture, we focus on the anal- ysis of mesoscopic models for protein folding, aggregation for a more universal description of the notoriously difficult problem of protein fold- ing. In this approach

Janke, Wolfhard

227

Author's personal copy Protein folding in confined and crowded environments  

E-Print Network (OSTI)

Author's personal copy Review Protein folding in confined and crowded environments Huan-Xiang Zhou protein folding in cellular environments. Theories based on considerations of excluded volumes predict disparate effects on protein folding stability for confinement and crowding: confinement can stabilize

Weston, Ken

228

John von Neumann Institute for Computing Monte Carlo Protein Folding  

E-Print Network (OSTI)

John von Neumann Institute for Computing Monte Carlo Protein Folding: Simulations of Met://www.fz-juelich.de/nic-series/volume20 #12;#12;Monte Carlo Protein Folding: Simulations of Met-Enkephalin with Solvent-Accessible Area difficulties in applying Monte Carlo methods to protein folding. The solvent-accessible area method, a popular

Hsu, Hsiao-Ping

229

Protein folding: Then and now Yiwen Chen 1  

E-Print Network (OSTI)

Review Protein folding: Then and now Yiwen Chen 1 , Feng Ding 1 , Huifen Nie 1 , Adrian W decades the protein folding field has undergone monumental changes. Originally a purely academic question, how a protein folds has now become vital in understanding diseases and our abilities to rationally

Dokholyan, Nikolay V.

230

Author's personal copy Protein folding: Then and now  

E-Print Network (OSTI)

Author's personal copy Review Protein folding: Then and now Yiwen Chen 1 , Feng Ding 1 , Huifen Nie Available online 8 June 2007 Abstract Over the past three decades the protein folding field has undergone monumental changes. Originally a purely academic question, how a protein folds has now become vital

Dokholyan, Nikolay V.

231

Modeling Protein Folding Pathways Christopher Bystroff, Yu Shao  

E-Print Network (OSTI)

Modeling Protein Folding Pathways Christopher Bystroff, Yu Shao Dept of Biology Rensselaer Polytechnic Institute, Troy, NY. e-mail:{bystrc, shaoy}@rpi.edu Summary Proteins fold through a series of intermediate states called a pathway. Protein folding pathways have been modeled using either simulations

Bystroff, Chris

232

COMMUNICATION Are Residues in a Protein Folding Nucleus  

E-Print Network (OSTI)

COMMUNICATION Are Residues in a Protein Folding Nucleus Evolutionarily Conserved? Yan Yuan Tseng is the hallmark of life. It is important to understand how protein folding and evolution influence each other in protein folding nucleus as measured by experi- mental f-value and selection pressure as measured by v

Dai, Yang

233

MATHEMATICAL MODELS OF PROTEIN FOLDING Daniel B. Dix  

E-Print Network (OSTI)

MATHEMATICAL MODELS OF PROTEIN FOLDING Daniel B. Dix Department of Mathematics University of South Carolina Abstract. We present an elementary introduction to the protein folding problem directed toward, and biological problem, protein folding can also be precisely formulated as a set of mathematics problems. We

Dix, Daniel B.

234

Evolutionary Monte Carlo for protein folding simulations Faming Lianga)  

E-Print Network (OSTI)

Evolutionary Monte Carlo for protein folding simulations Faming Lianga) Department of Statistics to simulations of protein folding on simple lattice models, and to finding the ground state of a protein. In all structures in protein folding. The numerical results show that it is drastically superior to other methods

Liang, Faming

235

Steiner Minimal Trees, Twist Angles, and the Protein Folding Problem  

E-Print Network (OSTI)

Steiner Minimal Trees, Twist Angles, and the Protein Folding Problem J. MacGregor Smith, Yunho Jang. These properties should be ultimately useful in the ab ini- tio protein folding prediction. Proteins 2007;66:889­ 902. VVC 2006 Wiley-Liss, Inc. Key words: Steiner trees; twist angles; protein fold- ing; side chain

Smith, J. MacGregor

236

Folding simulations of small proteins Seung-Yeon Kima  

E-Print Network (OSTI)

Abstract Understanding how a protein folds is a long-standing challenge in modern science. We have used-native conformations are carried out for each protein. In all cases, proteins fold into their native-like conformations, ~108 Monte Carlo steps). D 2004 Elsevier B.V. All rights reserved. Keywords: Protein folding; Computer

Lee, Jooyoung

237

Introduction to protein folding for physicists  

E-Print Network (OSTI)

The prediction of the three-dimensional native structure of proteins from the knowledge of their amino acid sequence, known as the protein folding problem, is one of the most important yet unsolved issues of modern science. Since the conformational behaviour of flexible molecules is nothing more than a complex physical problem, increasingly more physicists are moving into the study of protein systems, bringing with them powerful mathematical and computational tools, as well as the sharp intuition and deep images inherent to the physics discipline. This work attempts to facilitate the first steps of such a transition. In order to achieve this goal, we provide an exhaustive account of the reasons underlying the protein folding problem enormous relevance and summarize the present-day status of the methods aimed to solving it. We also provide an introduction to the particular structure of these biological heteropolymers, and we physically define the problem stating the assumptions behind this (commonly implicit) definition. Finally, we review the 'special flavor' of statistical mechanics that is typically used to study the astronomically large phase spaces of macromolecules. Throughout the whole work, much material that is found scattered in the literature has been put together here to improve comprehension and to serve as a handy reference.

Pablo Echenique

2007-05-13T23:59:59.000Z

238

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

239

Folding Kinetics of the Cooperatively Folded Subdomain of the IB Ankyrin Repeat Domain  

E-Print Network (OSTI)

Naturales, Universidad de Buenos Aires, C1428EGA Buenos Aires, Argentina 3 Consejo Nacional de Investigaciones Cientificas y Tecnicas de Argentina, C1428EGA Buenos Aires, Argentina Received 17 December 2010 complex folding kinetics, with two sequential on-pathway high-energy intermedi- ates. The effect

Komives, Elizabeth A.

240

Protein-Folding Landscapes in Multi-Chain Systems  

SciTech Connect

Computational studies of proteins have significantly improved our understanding of protein folding. These studies are normally carried out using chains in isolation. However, in many systems of practical interest, proteins fold in the presence of other molecules. To obtain insight into folding in such situations, we compare the thermodynamics of folding for a Miyazawa-Jernigan model 64-mer in isolation to results obtained in the presence of additional chains. The melting temperature falls as the chain concentration increases. In multi-chain systems, free-energy landscapes for folding show an increased preference for misfolded states. Misfolding is accompanied by an increase in inter-protein interactions; however, near the folding temperature, the transition from folded chains to misfolded and associated chains isentropically driven. A majority of the most probable inter-protein contacts are also native contacts, suggesting that native topology plays a role in early stages of aggregation.

Cellmer, Troy; Bratko, Dusan; Prausnitz, John M.; Blanch, Harvey

2005-06-20T23:59:59.000Z

Note: This page contains sample records for the topic "faults folds grabens" 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

The Quirky Collider Signals of Folded Supersymmetry  

SciTech Connect

We investigate the collider signals associated with scalar quirks ('squirks') in folded supersymmetric models. As opposed to regular superpartners in supersymmetric models these particles are uncolored, but are instead charged under a new confining group, leading to radically different collider signals. Due to the new strong dynamics, squirks that are pair produced do not hadronize separately, but rather form a highly excited bound state. The excited 'squirkonium' loses energy to radiation before annihilating back into Standard Model particles. We calculate the branching fractions into various channels for this process, which is prompt on collider time-scales. The most promising annihilation channel for discovery is W+photon which dominates for squirkonium near its ground state. We demonstrate the feasibility of the LHC search, showing that the mass peak is visible above the SM continuum background and estimate the discovery reach.

Burdman, Gustavo; Chacko, Z.; Goh, Hock-Seng; Harnik, Roni; Krenke, Christopher A.

2008-08-01T23:59:59.000Z

242

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

243

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

244

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

245

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

246

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

247

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

248

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

249

The folding energy landscape of Cytochrome c : theoretical and experimental investigations  

E-Print Network (OSTI)

Chemical Frustration in the Protein Folding Landscape: GrandChemical Frustration in the Protein Folding Landscape: GrandEnzyme Catalysis and Protein Folding (Freeman, New York). [

Weinkam, Patrick

2009-01-01T23:59:59.000Z

250

Topology, frustration, folding and function of the inflammatory cytokine Interleukin-1[beta  

E-Print Network (OSTI)

the features of protein folding, where proteins with manychain connectivity on protein folding (53). Application ofhave gone beyond protein folding and have characterized

Capraro, Dominique T.

2008-01-01T23:59:59.000Z

251

Carbon-deuterium bonds as an infrared probe of protein dynamics, local electrostatics and folding  

E-Print Network (OSTI)

and Englander, W. S. , Protein Folding: A Stepwise AssemblyEnglander, S. W. , Protein Folding Intermediates – NativeR. L. , How Does Protein Folding Get Started? Trends

Sagle, Laura B.

2006-01-01T23:59:59.000Z

252

Beyond the native state: Exploring the role of partially folded conformations on the protein energy landscape  

E-Print Network (OSTI)

L. & Englander, S. W. (1995). Protein folding intermediates:Unifying features in protein- folding mechanisms. Proc Natlintermediate state in protein folding by a hydrophobic

Connell, Katelyn Blair

2010-01-01T23:59:59.000Z

253

Energy landscapes for protein folding, binding, and aggregation : simple funnels and beyond  

E-Print Network (OSTI)

coordinates capture protein folding on smooth landscapes.in the Prediction of Protein Folding Kinetics. Proc. Natl.Landscapes for Protein Folding, Binding, and Aggregation:

Cho, Samuel Sung-Il

2007-01-01T23:59:59.000Z

254

Structural proteomics of minimal organisms: conservation of protein fold usage and evolutionary implications  

E-Print Network (OSTI)

e A) Variation in fold usage between organisms, in differentB) Variation in fold usage between minimal organisms onlyConservation of protein fold usage and evolutionary

Chandonia, John-Marc; Kim, Sung-Hou

2006-01-01T23:59:59.000Z

255

Microfluidic advantage : novel techniques for protein folding and oxygen control in cell cultures  

E-Print Network (OSTI)

Novel Techniques for Protein Folding and Oxygen Control inTemperature Jump System to Study Fast Protein FoldingNovel Techniques for Protein Folding and Oxygen Control in

Polinkovsky, Mark E.; Polinkovsky, Mark E.

2012-01-01T23:59:59.000Z

256

Trap types vs productivity of significant Wilcox gas fields in the south Texas, listric growth fault trend, and the divergent origin of its two largest producers  

SciTech Connect

Detailed mapping and analysis of 23 Wilcox fields in the subject trend indicates that gas production is related to trap type. Of total cumulative production of 3.4 TCFG, 65% is from upthrown fault blocks implying very effective fault seals due to differential pressure and/or shale smears. NE Thompsonville and Bob West fields have produced 650 and 200 BCFG, respectively, with 400 BCFG remaining reserves in the latter. The field structures are not attributed to listric growth faulting, as is suggested by their trend location. NE Thompsonville is a 9-mile-long turtle structure that originated through depositional loading of an upper slope basin, followed by tilting, and then eventual collapse of a sediment squeeze-up mound due to gravitational instability. These events provide an excellent example of basin evolution through sediment loading accompanied by withdrawal of a salt-shale substrate; the basin flanks are defined by basin-dipping listric faulting that accommodated subsidence and merge beneath its floor. Bob West Field lies along the edge of the Laramide fold belt. The 1-1/2 x 4 mile field anticline adjoins a deep-seated fault that slices over and across a buried structural ridge of probable Cretaceous age. Uplift of the latter, immediately following deposition of 20+ stacked, shelf-bar producing sands, upwarped the fault and resulted in rollover growth of the Wilcox anticline. The fault shows no downward decrease in dip typical of listric faults. NE Thompsonville and Bob West fields both produce upthrown along crestal faults. This analysis indicates that {open_quotes}high-side{close_quotes} closures, irrespective of diverse origins, have achieved head-of-the-class stature as Wilcox gas producers.

Stricklin, F.L. Jr. [Wilcox Exploration Enterprises, Woodlands, TX (United States)

1996-09-01T23:59:59.000Z

257

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

258

Accordian-folded boot shield for flexible swivel connection  

SciTech Connect

This patent describes an apparatus for connecting a first boot section to a second boot section, the first and second boots having openings therethrough, the second boot having at least two adjacent accordion folds at the end having the opening. The second boot is positioned through the opening of the first boot such that a first of the accordion folds is within the first boot and a second of the accordion folds is outside of the first boot comprising: first and second annular discs, the first disc being positioned within and across the first accordion fold, the second disc being positioned within and across the second accordion fold such that the first boot is moveably and rigidly connected between the first and second accordion folds.

Hoh, J.C.

1986-08-26T23:59:59.000Z

259

An energy landscape theory for cotranslational protein folding  

E-Print Network (OSTI)

Energy landscape theory describes how a full-length protein can attain its native fold by sampling only a tiny fraction of all possible structures. Although protein folding is now understood to be concomitant with synthesis on the ribosome, there have been few attempts to modify energy landscape theory by accounting for cotranslational folding. This paper introduces a model for cotranslational folding that leads to a natural definition of a nested energy landscapes. By applying concepts drawn from submanifold differential geometry, the dynamics of protein folding on the ribosome can be explored in a quantitative manner and conditions on the nested potential energy landscapes for a good cotranslational folder are obtained. A generalisation of diffusion rate theory using van Kampen's technique of composite stochastic processes is then used to account for entropic contributions and the effects of variable translation rates on cotranslational folding. This stochastic approach agrees well with experimental results...

Tourigny, David S

2013-01-01T23:59:59.000Z

260

Inferring the Rate-Length Law of Protein Folding  

E-Print Network (OSTI)

We investigate the rate-length scaling law of protein folding, a key undetermined scaling law in the analytical theory of protein folding. We demonstrate that chain length is a dominant factor determining folding times, and that the unambiguous determination of the way chain length corre- lates with folding times could provide key mechanistic insight into the folding process. Four specific proposed laws (power law, exponential, and two stretched exponentials) are tested against one an- other, and it is found that the power law best explains the data. At the same time, the fit power law results in rates that are very fast, nearly unreasonably so in a biological context. We show that any of the proposed forms are viable, conclude that more data is necessary to unequivocally infer the rate-length law, and that such data could be obtained through a small number of protein folding experiments on large protein domains.

Lane, Thomas J

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "faults folds grabens" 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.
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to obtain the most current and comprehensive results.


261

A dynamical approach to protein folding  

E-Print Network (OSTI)

In this paper we show that a dynamical description of the protein folding process provides an effective representation of equilibrium properties and it allows for a direct investigation of the mechanisms ruling the approach towards the native configuration. The results reported in this paper have been obtained for a two-dimensional toy-model of amino acid sequences, whose native configurations were previously determined by Monte Carlo techniques. The somewhat controversial scenario emerging from the comparison among various thermodynamical indicators is definitely better resolved relying upon a truly dynamical description, that points out the crucial role played by long-range interactions in determining the characteristic step-wise evolution of ``good'' folders to their native state. It is worth stressing that this dynamical scenario is consistent with the information obtained by exploring the energy landscapes of different sequences. This suggests that even the identification of more efficient ``static'' indicators should take into account the peculiar features associated with the complex ``orography'' of the landscape.

Alessandro Torcini; Roberto Livi; Antonio Politi

2001-03-13T23:59:59.000Z

262

Energy landscapes, folding mechanisms and kinetics of RNA tetraloop hairpins  

Science Journals Connector (OSTI)

Energy landscapes, folding mechanisms and kinetics of RNA tetraloop hairpins ... In this work, we use the discrete path sampling (DPS) approach to explore the energy landscapes of two RNA tetraloop hairpins, and provide insights into their folding mechanisms and kinetics in atomistic detail. ... Our results show that the potential energy landscapes have a distinct funnel-like bias towards the folded hairpin state, consistent with efficient structure-seeking properties. ...

Debayan Chakraborty; Rosana Collepardo-Guevara; David J. Wales

2014-12-02T23:59:59.000Z

263

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

264

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...

265

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...

266

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? ...

267

Seismic data, geometry, evolution, and shortening in the active Sulaiman fold-and-thrust belt of Pakistan, southwest of the Himalayas  

SciTech Connect

Despite its long history of exploration, the Sulaiman fold and thrust belt is a poorly known structure and detailed structural and geochemical investigations are vital for the successful exploration, evaluation and exploitation of any hydrocarbons. Recent nappe and duplex structural models provide a framework for exploration. Surface and subsurface data from the Sulaiman fold-and-thrust belt are integrated to analyze the deep structure, tectonic, shortening, and kinematics of the Sulaiman fold-and-thrust belt at the western margin of the Indian subcontinent. Seismic reflection data show that nearly all the 10-km-thick sequence of dominantly platform (>7 km) and molasse strata is detached at the deformation front. The strata thicken tectonically to about 20 km in the hinterland without significant thrust faults in the foreland. A balanced structural cross-section suggests that structural uplift in the Sulaiman fold-and-thrust belt is a result of a thin-skinned, passive-roof duplex style of deformation. Sequential restoration of the balanced section reveals a series of structural and geometrical features including: (1) development of low-amplitude, broad concentric folds at the tip of the decollement; (2) increase in amplitude of a detachment fold to a critical level for development of ramp and duplex structures; and (3) out-of-sequence thrusting to create required critical taper for an outward translation of the foreland fold-and-thrust belt. A balanced structural cross-section 349 km long from the Sulaiman fold-and-thrust belt restores to an original length of 727 km, suggesting a maximum of 378 km of shortening since 21 Ma in the cover strata of the Indian subcontinent. Calculation of displacement rates over the Sulaiman fold-and-thrust belt (18 mm/yr) added to the resolved rate of the Chaman fault vector for the component parallel to the plate convergence direction (15 mm/yr) are close to the current India-Asia plate convergence rate (37 mm/yr). 68 refs., 13 figs.

Jadoon, I.A.K. (Quaid-i-Azam Univ., Islamabad (Panama)); Lawrence, R.D.; Lillie, R.J. (Oregon State Univ., Corvallis, OR (United States))

1994-05-01T23:59:59.000Z

268

A Computational Genome-wide Study of Protein Folding Rate.  

E-Print Network (OSTI)

??Proteins should be able to ‘fold’ to a native three-dimensional structure in a biologically relevant time to be functional. In our current study, we tried… (more)

Gorla, Sandeep C.

2012-01-01T23:59:59.000Z

269

THE GEODESIC X-RAY TRANSFORM WITH FOLD CAUSTICS The ...  

E-Print Network (OSTI)

Aug 28, 2012 ... THE GEODESIC X-RAY TRANSFORM WITH FOLD CAUSTICS. PLAMEN STEFANOV AND GUNTHER UHLMANN. ABSTRACT. We give a ...

2012-08-28T23:59:59.000Z

270

Application of optical tweezers in protein folding studies.  

E-Print Network (OSTI)

??Force spectroscopy has proven to be a very promising tool in the protein folding field. With multiple setups and methods to exert force it has… (more)

Kooijman, L.

2014-01-01T23:59:59.000Z

271

Topological complexity, contact order and protein folding rates  

E-Print Network (OSTI)

Monte Carlo simulations of protein folding show the emergence of a strong correlation between the relative contact order parameter, CO, and the folding time, t, of two-state folding proteins for longer chains with number of amino acids, N>=54, and higher contact order, CO > 0.17. The correlation is particularly strong for N=80 corresponding to slow and more complex folding kinetics. These results are qualitatively compatible with experimental data where a general trend towards increasing t with CO is indeed observed in a set of proteins with chain length ranging from 41 to 154 amino acids.

P. F. N. Faisca; R. C. Ball

2002-05-29T23:59:59.000Z

272

Variational theory for site resolved protein folding free energy surfaces  

E-Print Network (OSTI)

We present a microscopic variational theory for the free energy surface of a fast folding protein that allows folding kinetics to be resolved to the residue level using Debye-Waller factors as local order parameters. We apply the method to lambda-repressor and compare with site directed mutagenesis experiments. The formation of native structure and the free energy profile along the folding route are shown to be well described by the capillarity approximation but with some fine structure due to local folding topology.

John J. Portman; Shoji Takada; Peter G. Wolynes

1999-01-18T23:59:59.000Z

273

Protein folding and diffusion: from in vitro to live cells.  

E-Print Network (OSTI)

??Protein folding landscapes and protein-protein interaction landscapes are subject to modulation by many factors inside living cells: crowding, electrostatics, hydrophobic interactions, and even hydrodynamic phenomena.… (more)

Guo, Minghao

2014-01-01T23:59:59.000Z

274

Biophysical Studies of Protein Folding and Binding Stability.  

E-Print Network (OSTI)

?? Interactions between charged residues are known to have significant effects on protein folding stability and binding properties. The contributions of different types of non-covalent… (more)

Batra, Jyotica

2009-01-01T23:59:59.000Z

275

Thermodynamics of protein folding: a random matrix formulation  

E-Print Network (OSTI)

The process of protein folding from an unfolded state to a biologically active, folded conformation is governed by many parameters e.g the sequence of amino acids, intermolecular interactions, the solvent, temperature and chaperon molecules. Our study, based on random matrix modeling of the interactions, shows however that the evolution of the statistical measures e.g Gibbs free energy, heat capacity, entropy is single parametric. The information can explain the selection of specific folding pathways from an infinite number of possible ways as well as other folding characteristics observed in computer simulation studies.

Pragya Shukla

2010-10-16T23:59:59.000Z

276

DOE Science Showcase - Protein Folding | OSTI, US Dept of Energy...  

Office of Scientific and Technical Information (OSTI)

Science Showcase - Protein Folding Proteins are the main constitute of our bones, muscles, hair, skin and blood vessels, performing a vast array of functions such as catalyzing...

277

New Crystal Structures Lift Fog around Protein Folding  

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

New Crystal Structures Lift Fog around Protein Folding Print Nature's proteins set a high bar for nanotechnology. Macromolecules forged from peptide chains of amino acids, these...

278

Protein folding: A complex potential for the driving force  

E-Print Network (OSTI)

Using the Helmholtz decomposition of the vector field of folding fluxes in a reduced space of collective variables, a potential of the driving force for protein folding is determined. The potential has two components and can be written as a complex function. One component is responsible for the source and sink of the folding flows (representing, respectively, the unfolded states and the native state of the protein), and the other accounts for the vorticity of the flow that is produced at the boundaries of the main flow by the contact of the moving folding "fluid" with the quiescent surroundings. The theoretical consideration is illustrated by calculations for a model $\\beta$-hairpin protein.

Chekmarev, Sergei F

2013-01-01T23:59:59.000Z

279

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

280

"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.

Note: This page contains sample records for the topic "faults folds grabens" 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

Colorado Late Cenozoic Fault and Fold Database and Internet Map Server: User-Friendly Technology for Complex Information  

Science Journals Connector (OSTI)

...and Herr, 2001). This study utilized Autodesk MapGuide in conjunction with Macromedia...and then select selected. We hope that AutoDesk will correct this shortcoming in a future...by downloading a viewer plug-in from Autodesk MapGuide. The viewer has GIS capabilities...

KAREN S. MORGAN; GERALD J. PATTYN; MATTHEW L. MORGAN

282

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.

283

Thermodynamic control and dynamical regimes in protein folding  

E-Print Network (OSTI)

Monte Carlo simulations of a simple lattice model of protein folding show two distinct regimes depending on the chain length. The first regime well describes the folding of small protein sequences and its kinetic counterpart appears to be single exponential in nature, while the second regime is typical of sequences longer than 80 amino acids and the folding performance achievable is sensitive to target conformation. The extent to which stability, as measured by the energy of a sequence in the target, is an essential requirement and affects the folding dynamics of protein molecules in the first regime is investigated. The folding dynamics of sequences whose design stage was restricted to a certain fraction of randomly selected amino acids shows that while some degree of stability is a necessary and sufficient condition for successful folding, designing sequences that provide the lowest energy in the target seems to be a superfluous constraint. By studying the dynamics of under annealed but otherwise freely designed sequences we explore the relation between stability and kinetic accessibility. We find that there is no one-to-one correspondence between having low energy and folding quickly to the target, as only a small fraction of the most stable sequences were also found to fold relatively quickly.

P. F. N. Faisca; R. C. Ball

2001-10-07T23:59:59.000Z

284

Statistical Analysis of Protein Folding Kinetics Aaron R. Dinner  

E-Print Network (OSTI)

Statistical Analysis of Protein Folding Kinetics Aaron R. Dinner , Sung-Sau So ¡ , and Martin and theoretical studies over several years have led to the emergence of a unified general mechanism for protein folding that serves as a framework for the design and interpretation of research in this area [1

Dinner, Aaron

285

Multi-Agent Simulation of Protein Folding Luca Bortolussi1  

E-Print Network (OSTI)

Multi-Agent Simulation of Protein Folding Luca Bortolussi1 , Agostino Dovier1 , and Federico residues) is known. The process for reaching this state is known as the protein fold- ing. This problem the feasibility and the power of the method. Keywords: Computational Biology, Agent-Based Technologies, Protein

Bortolussi, Luca

286

A Single-Molecule Study of RNA Catalysis and Folding  

E-Print Network (OSTI)

A Single-Molecule Study of RNA Catalysis and Folding Xiaowei Zhuang,1 * Laura E. Bartley,2 * Hazen and undocks from the ribozyme core was observed directly in single-molecule time trajectories, allowing. These results establish single-molecule fluorescence as a pow- erful tool for examining RNA folding. Virtually

Herschlag, Dan

287

New Crystal Structures Lift Fog around Protein Folding  

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

New Crystal Structures Lift Fog New Crystal Structures Lift Fog around Protein Folding New Crystal Structures Lift Fog around Protein Folding Print Wednesday, 25 July 2012 00:00 Nature's proteins set a high bar for nanotechnology. Macromolecules forged from peptide chains of amino acids, these biomolecular nanomachines must first be folded into a dazzling variety of shapes and forms before they can perform the multitude of functions fundamental to life. However, the mechanisms behind the protein-folding process have remained a foggy mystery. Now the fog is lifting: a team of researchers from Berkeley Lab, Stanford University, and the Massachusetts Institute of Technology has deciphered the crystal structure of a critical control element within chaperonin, the protein complex responsible for the correct folding of other proteins.

288

1.17 - Protein Folding in the Endoplasmic Reticulum  

Science Journals Connector (OSTI)

Abstract The endoplasmic reticulum (ER) is the principal protein-folding organelle for secretory and membrane proteins. Proteins are folded, assembled, and post-translationally modified in the ER. Chaperones and folding enzymes assist in this process. Before exiting the ER, all proteins undergo quality control such that only properly folded proteins transit to the Golgi and cell surface. The ER is also the site for sterol and lipid synthesis. As a major synthetic organelle, the ER is extremely sensitive to perturbations in homeostasis. Accumulation of misfolded or unfolded proteins within the ER induces a signaling pathway termed the unfolded protein response (UPR), which acts to restore ER homeostasis. This article discusses the basic mechanisms of protein folding in the ER, the role of the key ER chaperones, induction of the UPR, ER-associated degradation, and human diseases caused by protein misfolding and aggregation.

N. Naidoo

2011-01-01T23:59:59.000Z

289

Protein Folding Dynamics via Quantification of Kinematic Energy Landscape  

Science Journals Connector (OSTI)

We study folding dynamics of proteinlike sequences on a square lattice using a physical move set that exhausts all possible conformational changes. By analytically solving the master equation, we follow the time-dependent probabilities of occupancy of all 802?075 conformations of 16 mers over 7 orders of time span. We find that (i) folding rates of these proteinlike sequences of the same length can differ by 4 orders of magnitude, (ii) folding rates of sequences of the same conformation can differ by a factor of 190, and (iii) parameters of the native structures, designability, and thermodynamic properties are weak predictors of the folding rates; rather, a basin analysis of the kinematic energy landscape defined by the moves can provide an excellent account of the observed folding rates.

Sëma Kachalo; Hsiao-Mei Lu; Jie Liang

2006-02-08T23:59:59.000Z

290

Glottal opening in patients with vocal fold tissue changes  

Science Journals Connector (OSTI)

Summary Synchronized videostroboscopy and electroglottography were applied to the measurement of anterior-to-posterior open glottal length in four groups of patients; two with no clinically significant voice disorder, one with vocal fold polyps, and one with vocal fold nodules. The data showed that the groups did not differ significantly when open glottal length was measured at the time of minimum glottal opening. The pathological groups had significantly lower open glottal length measurements, however, when measurements were obtained at the time that vocal fold contact was initiated during the glottal cycle. The findings are preliminary evidence that vocal fold neoplasms may not have the effect of reducing glottal closure, as previously suggested in the literature. The data also highlight the importance of examining differential effects of vocal fold neoplasms at various points throughout the glottal cycle.

Michael P. Karnell; Ligang Li; William R. Panje

1991-01-01T23:59:59.000Z

291

Polymer uncrossing and knotting in protein folding, and their role in minimal folding pathways  

E-Print Network (OSTI)

We introduce a method for calculating the extent to which chain non-crossing is important in the most efficient, optimal trajectories or pathways for a protein to fold. This involves recording all unphysical crossing events of a ghost chain, and calculating the minimal uncrossing cost that would have been required to avoid such events. A depth-first tree search algorithm is applied to find minimal transformations to fold $\\alpha$, $\\beta$, $\\alpha/\\beta$, and knotted proteins. In all cases, the extra uncrossing/non-crossing distance is a small fraction of the total distance travelled by a ghost chain. Different structural classes may be distinguished by the amount of extra uncrossing distance, and the effectiveness of such discrimination is compared with other order parameters. It was seen that non-crossing distance over chain length provided the best discrimination between structural and kinetic classes. The scaling of non-crossing distance with chain length implies an inevitable crossover to entanglement-do...

Mohazab, Ali R

2012-01-01T23:59:59.000Z

292

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

293

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

294

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

295

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

296

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

297

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

298

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

299

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

300

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

Note: This page contains sample records for the topic "faults folds grabens" 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

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

302

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

303

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

304

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.

305

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

306

New Crystal Structures Lift Fog around Protein Folding  

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

New Crystal Structures Lift Fog around Protein Folding Print New Crystal Structures Lift Fog around Protein Folding Print Nature's proteins set a high bar for nanotechnology. Macromolecules forged from peptide chains of amino acids, these biomolecular nanomachines must first be folded into a dazzling variety of shapes and forms before they can perform the multitude of functions fundamental to life. However, the mechanisms behind the protein-folding process have remained a foggy mystery. Now the fog is lifting: a team of researchers from Berkeley Lab, Stanford University, and the Massachusetts Institute of Technology has deciphered the crystal structure of a critical control element within chaperonin, the protein complex responsible for the correct folding of other proteins. Chaperonins promote the proper folding of newly translated proteins and proteins that have been stress-denatured-meaning they've lost their structure-by encapsulating them inside a protective chamber formed from two rings of molecular complexes stacked back-to-back. There are two classes of chaperonins, group I found in prokaryotes and group II found in eukaryotes and archaea (organisms with no cell membrane or internal membrane-bound organelles). Much of the basic architecture has been evolutionarily preserved (conserved) across these two classes but they do differ in how the protective chamber is opened to accept proteins and closed to fold them. Whereas group I chaperonins require a detachable ring-shaped molecular lid to open and close the chamber, group II chaperonins have a built-in lid.

307

Criterion based Two Dimensional Protein Folding Using Extended GA  

E-Print Network (OSTI)

Abstract — In the dynamite field of biological and protein research, the protein fold recognition for long pattern protein sequences is a great confrontation for many years. With that consideration, this paper contributes to the protein folding research field and presents a novel procedure for mapping appropriate protein structure to its correct 2D fold by a concrete model using swarm intelligence. Moreover, the model incorporates Extended Genetic Algorithm (EGA) with concealed Markov model (CMM) for effectively folding the protein sequences that are having long chain lengths. The protein sequences are preprocessed, classified and then, analyzed with some parameters (criterion) such as fitness, similarity and sequence gaps for optimal formation of protein structures. Fitness correlation is evaluated for the determination of bonding strength of molecules, thereby involves in efficient fold recognition task. Experimental results have shown that the proposed method is more adept in 2D protein folding and outperforms the existing algorithms. Index Terms — classification, CMM, criterion analysis, EGA, protein folding, sequence gaps I.

T. Kalai Chelvi; P. Rangarajan

308

Physics of Caustics and Protein Folding: Mathematical Parallels  

E-Print Network (OSTI)

The energy for protein folding arises from multiple sources and is not large in total. In spite of the many specific successes of energy landscape and other approaches, there still seems to be some missing guiding factor that explains how energy from diverse small sources can drive a complex molecule to a unique state. We explore the possibility that the missing factor is in the geometry. A comparison of folding with other physical phenomena, together with analytic modeling of a molecule, led us to analyze the physics of optical caustic formation and of folding behavior side-by-side. The physics of folding and caustics is ostensibly very different but there are several strong parallels. This comparison emphasizes the mathematical similarity and also identifies differences. Since the 1970's, the physics of optical caustics has been developed to a very high degree of mathematical sophistication using catastrophe theory. That kind of quantitative application of catastrophe theory has not previously been applied to folding nor have the points of similarity with optics been identified or exploited. A putative underlying physical link between caustics and folding is a torsion wave of non-constant wave speed, propagating on the dihedral angles and $\\Psi$ found in an analytical model of the molecule. Regardless of whether we have correctly identified an underlying link, the analogy between caustic formation and folding is strong and the parallels (and differences) in the physics are useful.

Walter Simmons; Joel L. Weiner

2011-08-13T23:59:59.000Z

309

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

310

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

311

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

312

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

313

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

314

Modeling two-state cooperativity in protein folding  

E-Print Network (OSTI)

A protein model with the pairwise interaction energies varying as local environment changes, i.e., including some kinds of collective effect between the contacts, is proposed. Lattice Monte Carlo simulations on the thermodynamical characteristics and free energy profile show a well-defined two-state behavior and cooperativity of folding for such a model. As a comparison, related simulations for the usual G\\={o} model, where the interaction energies are independent of the local conformations, are also made. Our results indicate that the evolution of interactions during the folding process plays an important role in the two-state cooperativity in protein folding.

K. Fan; J. Wang; W. Wang

2001-03-19T23:59:59.000Z

315

Protein folding bottlenecks: A lattice Monte Carlo simulation  

Science Journals Connector (OSTI)

Results of Monte Carlo simulations of folding of a model ‘‘protein,’’ which is a freely joined 27-monomer chain on a simple cubic lattice with nearest-neighbor interactions, are reported. All compact self-avoiding conformations on this chain have been enumerated, and the conformation (‘‘native’’) corresponding to the global minimum of energy is known for each sequence. Only one out of thirty sequences folds and finds the global minimum. For this sequence, the folding process has a two-stage character, with a rapid noncooperative compactization followed by a slower transition over a free-energy barrier to the global minimum. The evolutionary implications of the results are discussed.

E. Shakhnovich; G. Farztdinov; A. M. Gutin; M. Karplus

1991-09-16T23:59:59.000Z

316

Modeling two-state cooperativity in protein folding  

Science Journals Connector (OSTI)

A protein model with the pairwise interaction energies varying as the local environment changes, i.e., including some kind of collective effect between the contacts, is proposed. Lattice Monte Carlo simulations on the thermodynamical characteristics and free energy profile show a well-defined two-state behavior and cooperativity of folding for such a model. As a comparison, related simulations for the usual G? model, where the interaction energies are independent of the local conformation, are also made. Our results indicate that the evolution of interactions during the folding process plays an important role in the two-state cooperativity in protein folding.

Ke Fan; Jun Wang; Wei Wang

2001-09-21T23:59:59.000Z

317

Water dynamics clue to key residues in protein folding  

SciTech Connect

A computational method independent of experimental protein structure information is proposed to recognize key residues in protein folding, from the study of hydration water dynamics. Based on all-atom molecular dynamics simulation, two key residues are recognized with distinct water dynamical behavior in a folding process of the Trp-cage protein. The identified key residues are shown to play an essential role in both 3D structure and hydrophobic-induced collapse. With observations on hydration water dynamics around key residues, a dynamical pathway of folding can be interpreted.

Gao, Meng [State Key Laboratory for Turbulence and Complex Systems, and Department of Biomedical Engineering, and Center for Theoretical Biology, and Center for Protein Science, Peking University, Beijing 100871 (China)] [State Key Laboratory for Turbulence and Complex Systems, and Department of Biomedical Engineering, and Center for Theoretical Biology, and Center for Protein Science, Peking University, Beijing 100871 (China); Zhu, Huaiqiu, E-mail: hqzhu@pku.edu.cn [State Key Laboratory for Turbulence and Complex Systems, and Department of Biomedical Engineering, and Center for Theoretical Biology, and Center for Protein Science, Peking University, Beijing 100871 (China)] [State Key Laboratory for Turbulence and Complex Systems, and Department of Biomedical Engineering, and Center for Theoretical Biology, and Center for Protein Science, Peking University, Beijing 100871 (China); Yao, Xin-Qiu [State Key Laboratory for Turbulence and Complex Systems, and Department of Biomedical Engineering, and Center for Theoretical Biology, and Center for Protein Science, Peking University, Beijing 100871 (China) [State Key Laboratory for Turbulence and Complex Systems, and Department of Biomedical Engineering, and Center for Theoretical Biology, and Center for Protein Science, Peking University, Beijing 100871 (China); Department of Biophysics, Kyoto University, Sakyo Kyoto 606-8502 (Japan); She, Zhen-Su, E-mail: she@pku.edu.cn [State Key Laboratory for Turbulence and Complex Systems, and Department of Biomedical Engineering, and Center for Theoretical Biology, and Center for Protein Science, Peking University, Beijing 100871 (China)] [State Key Laboratory for Turbulence and Complex Systems, and Department of Biomedical Engineering, and Center for Theoretical Biology, and Center for Protein Science, Peking University, Beijing 100871 (China)

2010-01-29T23:59:59.000Z

318

Computational investigations of folded self-avoiding walks related to protein folding  

E-Print Network (OSTI)

Various subsets of self-avoiding walks naturally appear when investigating existing methods designed to predict the 3D conformation of a protein of interest. Two such subsets, namely the folded and the unfoldable self-avoiding walks, are studied computationally in this article. We show that these two sets are equal and correspond to the whole $n$-step self-avoiding walks for $n\\leqslant 14$, but that they are different for numerous $n \\geqslant 108$, which are common protein lengths. Concrete counterexamples are provided and the computational methods used to discover them are completely detailed. A tool for studying these subsets of walks related to both pivot moves and proteins conformations is finally presented.

Bahi, Jacques M; Mazouzi, Kamel; Philippe, Laurent

2013-01-01T23:59:59.000Z

319

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

320

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

Note: This page contains sample records for the topic "faults folds grabens" 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

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

322

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

323

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

324

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

325

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

326

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

327

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

328

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

329

Investigation of Peptide Folding by Nuclear Magnetic Resonance Spectroscopy  

E-Print Network (OSTI)

. Solution-state nuclear magnetic resonance (NMR) is a powerful technique to investigate protein structure, dynamics, and folding mechanisms, since it provides residue-specific information. One of the major contributions that govern protein structure appears...

Hwang, SoYoun

2012-07-16T23:59:59.000Z

330

Protein folding in the secretory pathway of animal cells  

Science Journals Connector (OSTI)

The exit of newly-synthesized proteins from the lumen of the endoplasmic reticulum (ER) is the rate-determining step in protein secretion. Only correctly-folded and fully-assembled proteins exit the ER and pro...

Robert B. Freedman; Carole Greenall; Nigel Jenkins; Mick F. Tuite

1995-01-01T23:59:59.000Z

331

Office of Small and Disadvantaged Business Utilization Tri-Fold  

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

OSDBU has created a downloadable, print-on-demand tri-fold PDF that introduces the office, its role in the Department of Energy and its goals for supporting small business nationwide.

332

Determining the role of hydration forces in protein folding  

SciTech Connect

One of the primary issues in protein folding is determining what forces drive folding and eventually stabilize the native state. A delicate balance exists between electrostatic forces such as hydrogen bonding and salt bridges, and the hydrophobic effect, which are present for both intramolecular protein interactions and intermolecular contributions with the surrounding aqueous environment. This article describes a combined experimental, theoretical, and computational effort to show how the complexity of aqueous hydration can influence the structure, folding and aggregation, and stability of model protein systems. The unification of the theoretical and experimental work is the development or discovery of effective amino acid interactions that implicitly include the effects of aqueous solvent. The authors show that consideration of the full range of complexity of aqueous hydration forces such as many-body effects, long-ranged character of aqueous solvation, and the assumptions made about the degree of protein hydrophobicity can directly impact the observed structure, folding, and stability of model protein systems.

Sorenson, J.M. [Univ. of California, Berkeley, CA (United States). Dept. of Chemistry] [Univ. of California, Berkeley, CA (United States). Dept. of Chemistry; Hura, G. [Univ. of California, Berkeley, CA (United States)] [Univ. of California, Berkeley, CA (United States); [Lawrence Berkeley National Lab., CA (United States). Life Sciences Div.; Soper, A.K. [Rutherford Appleton Lab., Didcot (United Kingdom). ISIS Facility] [Rutherford Appleton Lab., Didcot (United Kingdom). ISIS Facility; Pertsemlidis, A. [Univ. of Texas Southwestern Medical Center, Dallas, TX (United States). Dept. of Biochemistry] [Univ. of Texas Southwestern Medical Center, Dallas, TX (United States). Dept. of Biochemistry; Head-Gordon, T. [Lawrence Berkeley National Lab., CA (United States)] [Lawrence Berkeley National Lab., CA (United States)

1999-07-01T23:59:59.000Z

333

Low energy pathways for reproducible in vivo protein folding  

E-Print Network (OSTI)

Two proteins, one belonging to the mainly alpha class and the other belonging to the alpha/beta class, are selected to test a kinetic mechanism for protein folding. Targeted molecular dynamics is applied to generate folding pathways for those two proteins, starting from two well defined initial conformations: a fully extended and a alpha-helical conformation. The results show that for both proteins the alpha-helical initial conformation provides overall lower energy pathways to the native state. For the alpha/beta protein, 30 % (40%) of the pathways from an initial alpha-helix (fully extended) structure lead to unentangled native folds, a success rate that can be increased to 85 % by the introduction of a well-defined intermediate structure. These results open up a new direction in which to look for a solution to the protein folding problem, as detailed at the end.

Leonor Cruzeiro

2011-01-03T23:59:59.000Z

334

Physics of Caustics and Protein Folding: Mathematical Parallels  

E-Print Network (OSTI)

The energy for protein folding arises from multiple sources and is not large in total. In spite of the many specific successes of energy landscape and other approaches, there still seems to be some missing guiding factor that explains how energy from diverse small sources can drive a complex molecule to a unique state. We explore the possibility that the missing factor is in the geometry. A comparison of folding with other physical phenomena, together with analytic modeling of a molecule, led us to analyze the physics of optical caustic formation and of folding behavior side-by-side. The physics of folding and caustics is ostensibly very different but there are several strong parallels. This comparison emphasizes the mathematical similarity and also identifies differences. Since the 1970's, the physics of optical caustics has been developed to a very high degree of mathematical sophistication using catastrophe theory. That kind of quantitative application of catastrophe theory has not previously been applied ...

Simmons, Walter

2011-01-01T23:59:59.000Z

335

Mechanisms of protein-folding diseases at a glance  

E-Print Network (OSTI)

For a protein to function appropriately, it must first achieve its proper conformation and location within the crowded environment inside the cell. Multiple chaperone systems are required to fold proteins correctly. In ...

Valastyan, Julie Suzanne

336

INTRODUCTION Lateral propagation of folds is a process in  

E-Print Network (OSTI)

; (2) decrease in elevation of wind gaps; (3) decrease in relief of the topographic profile along in rotation and inclination of the forelimb. As a result of style of folding and variable geomorphic response

Keller, Ed

337

Master equation approach to protein folding and kinetic traps  

E-Print Network (OSTI)

The master equation for 12-monomer lattice heteropolymers is solved numerically and the time evolution of the occupancy of the native state is determined. At low temperatures, the median folding time follows the Arrhenius law and is governed by the longest relaxation time. For good folders, significant kinetic traps appear in the folding funnel whereas for bad folders, the traps also occur in non-native energy valleys.

Marek Cieplak; Malte Henkel; Jan Karbowski; Jayanth R. Banavar

1998-04-21T23:59:59.000Z

338

Unfolded protein ensembles, folding trajectories, and refolding rate prediction  

Science Journals Connector (OSTI)

Computer simulations can provide critical information on the unfolded ensemble of proteins under physiological conditions by explicitly characterizing the geometrical properties of the diverse conformations that are sampled in the unfolded state. A general computational analysis across many proteins has not been implemented however. Here we develop a method for generating a diverse conformational ensemble to characterize properties of the unfolded states of intrinsically disordered or intrinsically folded proteins. The method allows unfolded proteins to retain disulfide bonds. We examined physical properties of the unfolded ensembles of several proteins including chemical shifts clustering properties and scaling exponents for the radius of gyration with polymer length. A problem relating simulated and experimental residual dipolar couplings is discussed. We apply our generated ensembles to the problem of folding kinetics by examining whether the ensembles of some proteins are closer geometrically to their folded structures than others. We find that for a randomly selected dataset of 15 non-homologous 2- and 3-state proteins quantities such as the average root mean squared deviation between the folded structure and unfolded ensemble correlate with folding rates as strongly as absolute contact order. We introduce a new order parameter that measures the distance travelled per residue which naturally partitions into a smooth “laminar” and subsequent “turbulent” part of the trajectory. This latter conceptually simple measure with no fitting parameters predicts folding rates in 0 M denaturant with remarkable accuracy (r = ?0.95 p = 1 × 10?7). The high correlation between folding times and sterically modulated reconfigurational motion supports the rapid collapse of proteins prior to the transition state as a generic feature in the folding of both two-state and multi-state proteins. This method for generating unfolded ensembles provides a powerful approach to address various questions in protein evolution misfolding and aggregation transient structures and molten globule and disordered protein phases.

2013-01-01T23:59:59.000Z

339

Speeding up protein folding: mutations that increase the rate at which Rop folds and unfolds by over four orders of magnitude  

E-Print Network (OSTI)

Speeding up protein folding: mutations that increase the rate at which Rop folds and unfolds. Introduction When a protein folds, the backbone and sidechain atoms organize from the extensive number protein folding usually occurs on the order of milliseconds to seconds, it is gener- ally accepted

Mochrie, Simon

340

Using Bit-Vector Decision Procedures for Analysis of Protein Folding Pathways  

E-Print Network (OSTI)

Using Bit-Vector Decision Procedures for Analysis of Protein Folding Pathways Christopher James-vector decision procedures for the analysis of protein folding pathways. We argue that the protein fold- ing by the different nature of the protein folding problem, we present a translation of the protein folding pathways

Langmead, Christopher James

Note: This page contains sample records for the topic "faults folds grabens" 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

DOI: 10.1002/ijch.201300141 Exploring the Protein Folding Dynamics of Beta3s with  

E-Print Network (OSTI)

DOI: 10.1002/ijch.201300141 Exploring the Protein Folding Dynamics of Beta3s with Two folding process. Howev- er, monitoring protein folding dynamics is still challeng- ing. Experiments of protein folding. However, most folding processes of interest occur on timescales (microsecond to second

Mukamel, Shaul

342

RoadmapMethodsforProteinFolding MarkMoll, DavidSchwarz, LydiaE.Kavraki  

E-Print Network (OSTI)

RoadmapMethodsforProteinFolding MarkMoll, DavidSchwarz, LydiaE.Kavraki Abstract--Protein folding, and get a coarse view of the energy landscape. Keywords: protein folding, folding kinetics, roadmap methods, conformation sampling techniques, energy landscape. 1 Introduction Protein folding refers

Kavraki, Lydia E.

343

Protein Quaternary Fold Recognition Using Conditional Graphical Models Yan Liu Jaime Carbonell  

E-Print Network (OSTI)

02139 pweigele@mit.edu Abstract Protein fold recognition is a crucial step in infer- ring biological- acid sequences is protein fold recognition and alignment. Given a target protein fold 1 , the task-to-topology alignment against the fold. There are different kinds of protein folds based on their structural properties

Carbonell, Jaime

344

Kinetic Studies of the Folding of Heterodimeric Monellin: Evidence for Switching between Alternative  

E-Print Network (OSTI)

Keywords: monellin; heterodimeric protein; folding kinetics; parallel pathways Determining whether or not a protein uses multiple pathways to fold is an important goal in protein folding studies. When multiple to the protein folding reaction, and the utilization of more than one pathway would speed protein folding.2

345

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

346

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

347

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

348

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

349

Detection and characterization of partially folded forms on the protein energy landscape  

E-Print Network (OSTI)

can accelerate protein folding. Proc Natl Acad Sci U S A 96(coupling between protein folding and prolyl isomerization.The speed limit for protein folding measured by triplet-

Bernstein, Rachel Simma

2011-01-01T23:59:59.000Z

350

On the Complexity of Protein Folding Pierluigi Crescenzi, Deborah Goldman, Christos Papadimitriou  

E-Print Network (OSTI)

On the Complexity of Protein Folding Pierluigi Crescenzi, Deborah Goldman, Christos Papadimitriou Antonio Piccolboni, Mihalis Yannakakis Abstract We show that the protein folding problem in the two protein folding are the interactions between their monomers; recently, the view that non

California at Irvine, University of

351

Long-time protein folding dynamics from short-time molecular dynamics simulations  

E-Print Network (OSTI)

On the simulation of protein folding by short time scaleand W. A. Eaton, The protein folding “speed limit,” Curr.and T. Head-Gordon, Protein folding by distributed computing

Chodera, J D; Swope, W C; Pitera, J W; Dill, Ken A

2006-01-01T23:59:59.000Z

352

Crucial stages of protein folding through a solvable model: Predicting target sites  

E-Print Network (OSTI)

Crucial stages of protein folding through a solvable model: Predicting target sites for enzyme. Keywords: Protein-folding modeling; prediction of key folding sites; HIV-1 protease; drug resistance One

Cecconi, Fabio

353

Parallel ContinuationBased Global Optimization for Molecular Conformation and Protein Folding  

E-Print Network (OSTI)

Parallel Continuation­Based Global Optimization for Molecular Conformation and Protein Folding protein folding. Global minimization problems are difficult to solve when the objective functions have energy functions for molecular conformation and protein folding. Mathematical theory for the method

Neumaier, Arnold

354

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

355

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

356

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

357

Intermediates and the folding of proteins L and G  

SciTech Connect

We use a minimalist protein model, in combination with a sequence design strategy, to determine differences in primary structure for proteins L and G that are responsible for the two proteins folding through distinctly different folding mechanisms. We find that the folding of proteins L and G are consistent with a nucleation-condensation mechanism, each of which is described as helix-assisted {beta}-1 and {beta}-2 hairpin formation, respectively. We determine that the model for protein G exhibits an early intermediate that precedes the rate-limiting barrier of folding and which draws together misaligned secondary structure elements that are stabilized by hydrophobic core contacts involving the third {beta}-strand, and presages the later transition state in which the correct strand alignment of these same secondary structure elements is restored. Finally the validity of the targeted intermediate ensemble for protein G was analyzed by fitting the kinetic data to a two-step first order reversible reaction, proving that protein G folding involves an on-pathway early intermediate, and should be populated and therefore observable by experiment.

Brown, Scott; Head-Gordon, Teresa

2003-07-01T23:59:59.000Z

358

Folding of a DNA Hairpin Loop Structure in Explicit SolventUsingRepli...  

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

Folding of a DNA Hairpin Loop Structure in Explicit Solvent UsingReplica-Exchange Molecular Dynamics Simulations. Folding of a DNA Hairpin Loop Structure in Explicit Solvent...

359

Directed Evolution Designed to Optimize the in vivo Protein Folding Environment.  

E-Print Network (OSTI)

??Protein folding is assisted by molecular chaperones and folding catalysts in vivo. Understanding how chaperones are regulated and how they function in vivo may provide… (more)

Quan, Shu

2010-01-01T23:59:59.000Z

360

E-Print Network 3.0 - assisted protein folding Sample Search...  

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

protein folding Search Powered by Explorit Topic List Advanced Search Sample search results for: assisted protein folding Page: << < 1 2 3 4 5 > >> 1 BIOLOGICAL FRAMEWORKS FOR...

Note: This page contains sample records for the topic "faults folds grabens" 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

E-Print Network 3.0 - ab initio folding Sample Search Results  

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

fold recogniion Ab initio Methods... Methods Ab initio methods: solution of a protein folding problem search in conformational space Energy... Protein Structure Analysis...

362

E-Print Network 3.0 - acids detection folding Sample Search Results  

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

Medicine 4 International Scientific Conference Computer Science'2008 Near-Native Protein Folding Summary: folded proteins generally have polar amino acids on the outside of their...

363

SciTech Connect: Protein-folding via divide-and-conquer optimization  

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

Protein-folding via divide-and-conquer optimization Citation Details In-Document Search Title: Protein-folding via divide-and-conquer optimization Authors: Oliva, Ricardo;...

364

Topological Aspects of DNA Function and Protein Folding 523 Knotting pathways in proteins  

E-Print Network (OSTI)

Topological Aspects of DNA Function and Protein Folding 523 Knotting pathways in proteins Joanna I Key words: artificial knot, chaperone, free energy landscape, knotted protein, protein folding

Bigelow, Stephen

365

E-Print Network 3.0 - affecting protein folding Sample Search...  

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

protein folding Search Powered by Explorit Topic List Advanced Search Sample search results for: affecting protein folding Page: << < 1 2 3 4 5 > >> 1 Current status of membrane...

366

Protein Folding Kinetics and Thermodynamics from Atomistic Simulations  

Science Journals Connector (OSTI)

Determining protein folding kinetics and thermodynamics from all-atom molecular dynamics (MD) simulations without using experimental data represents a formidable scientific challenge because simulations can easily get trapped in local minima on rough free energy landscapes. This necessitates the computation of multiple simulation trajectories, which can be independent from each other or coupled in some manner, as, for example, in the replica exchange MD method. Here we present results obtained with a new analysis tool that allows the deduction of faithful kinetics data from a heterogeneous ensemble of simulation trajectories. The method is demonstrated on the decapeptide Chignolin for which we predict folding and unfolding time constants of 1.0±0.3 and 2.6±0.4???s, respectively. We also derive the energetics of folding, and calculate a realistic melting curve for Chignolin.

David van der Spoel and M. Marvin Seibert

2006-06-15T23:59:59.000Z

367

Collective aspects of protein folding illustrated by a toy model  

SciTech Connect

A simple toy model for polypeptides serves as a testbed to illuminate some nonlocal, or collective, aspects of protein folding phenomena. The model is two dimensional and has only two amino acids, but involves a continuous range of backbone bend angles. Global potential energy minima and their folding structures have been determined for leading members of two special and contrasting polypeptide sequences, center doped and Fibonacci, named descriptively for their primary structures. The results display the presence of spontaneous symmetry breaking, elastic strain, and substantial conformational variation for specific embedded amino acid strings. We conclude that collective variables generated by the primary amino acid structure may be required for fully effective protein folding predictors, including those based on neural networks.

Stillinger, F.H. [AT& T Bell Laboratories, Murray Hill, New Jersey 07974 (United States)] [AT& T Bell Laboratories, Murray Hill, New Jersey 07974 (United States); Head-Gordon, T. [Life Sciences Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720 (United States)] [Life Sciences Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720 (United States)

1995-09-01T23:59:59.000Z

368

Heteropolymer freezing and design: Towards physical models of protein folding  

SciTech Connect

Protein folding has become one of the most actively studied problems in modern molecular biophysics. Approaches to the problem combine ideas from the physics of disordered systems, polymer physics, and molecular biology. Much can be learned from the statistical properties of model heteropolymers, the chain molecules having different monomers in irregular sequences. Even in highly evolved proteins, there is a strong random element in the sequences, which gives rise to a statistical ensemble of sequences for a given folded shape. Simple analytic models give rise to phase transitions between random, glassy, and folded states, depending on the temperature T and the design temperature T{sup des} of the ensemble of sequences. Besides considering the analytic results obtainable in a random-energy model and in the Flory mean-field model of polymers, the article reports on confirming numerical simulations. (c) 2000 The American Physical Society.

Pande, Vijay S. [Chemistry Department, Stanford University, Stanford, California 94305-5080 (United States)] [Chemistry Department, Stanford University, Stanford, California 94305-5080 (United States); Grosberg, Alexander Yu. [Department of Physics, University of Minnesota, Minneapolis, Minnesota 55455 (United States)] [Department of Physics, University of Minnesota, Minneapolis, Minnesota 55455 (United States); Tanaka, Toyoichi [Department of Physics and Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)] [Department of Physics and Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2000-01-01T23:59:59.000Z

369

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

370

SHuffle, a novel Escherichia coli protein expression strain capable of correctly folding disulfide bonded proteins in its cytoplasm  

E-Print Network (OSTI)

Schein CH: Optimizing protein folding to the native state inJ, Terwilliger TC: Rapid protein-folding assay using greenbuilding bridges in protein folding. Trends Biochem Sci

Lobstein, Julie; Emrich, Charlie A; Jeans, Chris; Faulkner, Melinda; Riggs, Paul; Berkmen, Mehmet

2012-01-01T23:59:59.000Z

371

The effect of consensus mutation on the folding and binding kinetics of I(kappa)B(alpha)  

E-Print Network (OSTI)

in the transition state of protein folding: alternativeet al. (2008). "Protein folding and stability usingto enzyme catalysis and protein folding. New York, W.H.

DeVries, Ingrid L.

2011-01-01T23:59:59.000Z

372

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

373

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

374

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

375

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

376

The role of the energy gap in protein folding dynamics  

E-Print Network (OSTI)

The dynamics of folding of proteins is studied by means of a phenomenological master equation. The energy distribution is taken as a truncated exponential for the misfolded states plus a native state sitting below the continuum. The influence of the gap on the folding dynamics is studied, for various models of the transition probabilities between the different states of the protein. We show that for certain models, the relaxation to the native state is accelerated by increasing the gap, whereas for others it is slowed down .

Estelle Pitard; Henri Orland

1998-11-17T23:59:59.000Z

377

Characterization of Protein Folding by Dominant Reaction Pathways  

E-Print Network (OSTI)

We assess the reliability of the recently developed approach denominated Dominant Reaction Pathways (DRP) by studying the folding of a 16-residue beta-hairpin, within a coarse-grained Go-type model. We show that the DRP predictions are in quantitative agreement with the results of Molecular Dynamics simulations, performed in the same model. On the other hand, in the DRP approach, the computational difficulties associated to the decoupling of time scales are rigorously bypassed. The analysis of the important transition pathways supports a picture of the beta-hairpin folding in which the reaction is initiated by the collapse of the hydrophobic cluster.

Pietro Faccioli

2008-06-23T23:59:59.000Z

378

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

379

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

380

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

Note: This page contains sample records for the topic "faults folds grabens" 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

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

382

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

383

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...

384

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...

385

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...

386

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

387

Origin of the Native Driving Force for Protein Folding  

Science Journals Connector (OSTI)

We derive an expression with four adjustable parameters that reproduces well the 20×20 Miyazawa-Jernigan potential matrix extracted from known protein structures. The numerical values of the parameters can be approximately computed from the surface tension of water, water-screened dipole interactions between residues and water and among residues, and average exposures of residues in folded proteins.

Zi-Hao Wang and H. C. Lee

2000-01-17T23:59:59.000Z

388

Thermodynamics of Protein Folding from Coarse-Grained Models' Perspectives  

E-Print Network (OSTI)

Folding and aggregation of proteins, the interaction between proteins and membranes, as well as the adsorption of organic soft matter to inorganic solid substrates belong to the most interesting challenges in understanding structure and function of complex macromolecules. This is reasoned by the interdisciplinary character of the associated questions ranging from the molecular origin of the loss of biological functionality as, for example, in Alzheimer's disease to the development of organic circuits for biosensory applications. In this lecture, we focus on the analysis of mesoscopic models for protein folding, aggregation, and hybrid systems of soft and solid condensed matter. The simplicity of the coarse-grained models allows for a more universal description of the notoriously difficult problem of protein folding. In this approach, classifications of structure formation processes with respect to the conformational pseudophases are possible. This is similar in aggregation and adsorption processes, where the individual folding propensity is influenced by external forces. The main problem in studies of conformational transitions is that the sequences of amino acids proteins are built up of are necessarily of finite length and, therefore, a thermodynamic limit does not exist. Thus, structural transitions are not phase transitions in the strict thermodynamic sense and the analysis of pseudouniversal aspects is intricate, as apparently small-system effects accompany all conformational transitions and cannot be neglected.

Michael Bachmann; Wolfhard Janke

2007-10-25T23:59:59.000Z

389

Folded-Light-Path Colloidal Quantum Dot Solar Cells  

E-Print Network (OSTI)

Folded-Light-Path Colloidal Quantum Dot Solar Cells Ghada I. Koleilat*, Illan J. Kramer*, Chris T, Canada. Colloidal quantum dot photovoltaics combine low-cost solution processing with quantum size-effect tuning to match absorption to the solar spectrum. Rapid advances have led to certified solar power

390

Ultraviolet resonance Raman spectroscopy of the integral membrane protein OmpA : elucidating structure and tryptophan microenvironment of folded and unfolded states  

E-Print Network (OSTI)

Intermediates in Membrane Protein Folding,” Biochemistry (Intermediates in Membrane Protein Folding,” Biochemistry (Engelman. “ Membrane-Protein Folding and Oligomerization -

Neary, Tiffany Jonean

2008-01-01T23:59:59.000Z

391

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

392

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

393

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

394

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

395

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

396

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

397

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

398

International Scientific Conference Computer Science'2008 Near-Native Protein Folding  

E-Print Network (OSTI)

International Scientific Conference Computer Science'2008 61 Near-Native Protein Folding Stefka: The protein folding problem is a fundamental problem in computational molecular biology. The high resolution 3. After that the folding problem is de- fined like optimization problem. Keywords: Protein folding

Fidanova, Stefka

399

Estimates of the Loss of Main-Chain Conformational Entropy of Different Residues on Protein Folding  

E-Print Network (OSTI)

Estimates of the Loss of Main-Chain Conformational Entropy of Different Residues on Protein Folding energy of protein folding is not well understood. We have developed empirical scales for the loss; protein folding; pro- tein engineering INTRODUCTION When a protein folds into a compact globule, the resi

Pal, Debnath

400

Genetic Algorithm for Predicting Protein Folding in the 2D HP Model  

E-Print Network (OSTI)

Genetic Algorithm for Predicting Protein Folding in the 2D HP Model A Parameter Tuning Case Study of a protein, predicting its tertiary structure is known as the protein folding problem. This problem has been. The protein folding problem in the HP model is to find a conformation (a folded sequence) with the lowest

Emmerich, Michael

Note: This page contains sample records for the topic "faults folds grabens" 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

A New Algorithm for Protein Folding in the HP Model Alantha Newman *  

E-Print Network (OSTI)

876 A New Algorithm for Protein Folding in the HP Model Alantha Newman * Abstract We consider the problem of protein folding in the HP model ozt the two-dimensional square lattice. This problem.e.pairsof H's that are adjacent in the folding but not in the string) are present. The protein folding problem

Istrail, Sorin

402

Directed evolution methods for improving polypeptide folding and solubility and superfolder fluorescent proteins generated thereby  

DOE Patents (OSTI)

The current invention provides methods of improving folding of polypeptides using a poorly folding domain as a component of a fusion protein comprising the poorly folding domain and a polypeptide of interest to be improved. The invention also provides novel green fluorescent proteins (GFPs) and red fluorescent proteins that have enhanced folding properties.

Waldo, Geoffrey S. (Santa Fe, NM)

2007-09-18T23:59:59.000Z

403

Internal friction in the ultrafast folding of the tryptophan cage q Linlin Qiu 1  

E-Print Network (OSTI)

Internal friction in the ultrafast folding of the tryptophan cage q Linlin Qiu 1 , Stephen J. Hagen is a diffusional process, and the speed of folding is controlled by the frictional forces that act important source of friction in folding reactions. By contrast, our studies of the folding dynamics

Hagen, Stephen J.

404

Identifying the importance of amino acids for protein folding from crystal structures  

E-Print Network (OSTI)

Identifying the importance of amino acids for protein folding from crystal structures Nikolay V and characterizing protein folding kinetics from crystal structures using computational techniques. We also describe as the protein folding prob- lem [1­25], is of great importance because understanding protein folding mechanisms

Stanley, H. Eugene

405

The energy landscape for protein folding and possible connections to function  

E-Print Network (OSTI)

The energy landscape for protein folding and possible connections to function Margaret S. Cheunga to study protein folding. As good agreement between computational/theoretical studies and experimental-state proteins and larger proteins with more complex folding kinetics. How proteins fold from one

Onuchic, José

406

A new protein folding screen: Application to the ligand binding domains of a glutamate and kainate  

E-Print Network (OSTI)

A new protein folding screen: Application to the ligand binding domains of a glutamate and kainate of determining and evaluating protein folding conditions, we have designed a new fractional factorial protein folding screen. The screen includes 12 factors shown by previous experiments to enhance protein folding

Lebendiker, Mario

407

J. Mol. Biol. (1996) 264, 11641179 How to Derive a Protein Folding Potential? A New  

E-Print Network (OSTI)

J. Mol. Biol. (1996) 264, 1164­1179 How to Derive a Protein Folding Potential? A New Approach of deriving a pairwise potentialHarvard University Department of Chemistry for protein folding. The potential of accuracy. 7 1996 Academic Press Limited *Corresponding author Keywords: protein folding; protein folding

Mirny, Leonid

408

Constrained Proper Sampling of Conformations of Transition State Ensemble during Protein Folding  

E-Print Network (OSTI)

Constrained Proper Sampling of Conformations of Transition State Ensemble during Protein Folding) is important for studying protein folding. A promising approach pioneered by Vendruscolo et al40 to study TSE to understand how proteins fold to its native state8,29,37 . Protein folding is a complex process that involves

Dai, Yang

409

BiP Clustering Facilitates Protein Folding in the Endoplasmic Reticulum  

E-Print Network (OSTI)

BiP Clustering Facilitates Protein Folding in the Endoplasmic Reticulum Marc Griesemer1. *, Carissa (ER): translocation, protein folding, and ER-associated degradation. To facilitate protein folding may enhance protein folding and maturation. Scenarios were simulated to gauge the effectiveness

Petzold, Linda R.

410

Pairwise contact potentials are unsuitable for protein folding Michele Vendruscolo and Eytan Domany  

E-Print Network (OSTI)

Pairwise contact potentials are unsuitable for protein folding Michele Vendruscolo and Eytan Domany: protein folding; protein folding potential; contact map; neural networks; per­ ceptron. I. INTRODUCTION of protein folding [1] is to predict proteins' native structures from their amino acid sequences; solution

Domany, Eytan

411

Identification of characteristic protein folding channels in a coarse-grained hydrophobic-polar peptide model  

E-Print Network (OSTI)

Identification of characteristic protein folding channels in a coarse-grained hydrophobic of protein folding is one of the major challenges of modern interdisciplinary science. Proteins are linear simulations of protein folding are difficult, mainly for two reasons. Firstly, the folding process is so slow

Bachmann, Michael

412

proteinsSTRUCTURE O FUNCTION O BIOINFORMATICS Studying submicrosecond protein folding  

E-Print Network (OSTI)

proteinsSTRUCTURE O FUNCTION O BIOINFORMATICS Studying submicrosecond protein folding kinetics INTRODUCTION To understand the intrinsic principles of protein folding, the events in the folding process have to be systematically explored from small to large time scales. Tradi- tional methods for triggering protein folding

413

In and Out of the ER: Protein Folding, Quality Control, Degradation, and Related Human Diseases  

E-Print Network (OSTI)

In and Out of the ER: Protein Folding, Quality Control, Degradation, and Related Human Diseases 1377 C. Protein folding 1378 II. Protein Translocation, Folding, and Quality Control in the Endoplasmic Reticulum 1379 A. Protein targeting to the ER 1379 B. Chaperone-assisted protein folding in the ER 1379 C

Hebert, Daniel N.

414

John von Neumann Institute for Computing Different Types of Protein Folding Identified with  

E-Print Network (OSTI)

John von Neumann Institute for Computing Different Types of Protein Folding Identified://www.fz-juelich.de/nic-series/volume40 #12;Different Types of Protein Folding Identified with a Coarse-Grained Heteropolymer Model Stefan The identification of folding channels is one of the key tasks of protein folding studies. While secondary structures

Janke, Wolfhard

415

Predicting Experimental Quantities in Protein Folding Kinetics using Stochastic Roadmap Simulation  

E-Print Network (OSTI)

Predicting Experimental Quantities in Protein Folding Kinetics using Stochastic Roadmap Simulation the transition state ensemble (TSE) and predict the rates and -values for protein folding. The new method as a gen- eral tool for studying protein folding kinetics. 1 Introduction Protein folding is a crucial

Pratt, Vaughan

416

A New Method for Modeling and Solving the Protein Fold Recognition Problem  

E-Print Network (OSTI)

Idstract A New Method for Modeling and Solving the Protein Fold Recognition Problem (Extended}@ornl.gov Computational recognition of native-like folds from a protein fold database is considered to be a promising recog- nition through optimally aligning (threading) an amino acid sequence and a protein fold (template

Istrail, Sorin

417

A Branch and Bound Algorithm for the Protein Folding Problem in the HP Lattice Model  

E-Print Network (OSTI)

Article A Branch and Bound Algorithm for the Protein Folding Problem in the HP Lattice Model Mao tool for the protein folding problem. Key words: protein folding, HP model, branch and bound, lattice Introduction The protein folding problem, or the protein struc- ture prediction problem, is one of the most

Istrail, Sorin

418

Autotransporters: The Cellular Environment Reshapes a Folding Mechanism to Promote Protein Transport  

E-Print Network (OSTI)

the cellular environment affects protein folding mechanisms. Here, we focus on one unique aspect affect protein folding kinetics and the conformations of folding intermediates? We focus on recent have been made to understand the mechanisms by which proteins fold to their native conformations.3

Clark, Patricia L.

419

Low-Dimensional Free Energy Landscapes of Protein Folding Reactions by Nonlinear Dimensionality Reduction  

E-Print Network (OSTI)

Low-Dimensional Free Energy Landscapes of Protein Folding Reactions by Nonlinear Dimensionality(26):9885-9890, 2006 #12;Abstract The definition of reaction coordinates for the characterization of a protein folding along the main folding route. These results clearly show that a complex process such as protein folding

Kavraki, Lydia E.

420

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

Note: This page contains sample records for the topic "faults folds grabens" 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

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

422

* Corresponding author. : Primary student contributor. Folding-aware and Structure-conscious 3D Substructures in Folding Data: Identification and Applications  

E-Print Network (OSTI)

employed by biologists to study the protein folding problem. Such simulations have resulted in a large number of protein folding trajectories, each of which consists of a sequence of three, and cross-trajectory comparison. Key Words: protein folding trajectories, 3D substructure identification

Yang, Hui

423

The role of sidechain packing and native contact interactions in folding: Discontinuous molecular dynamics folding simulations of an all-atom  

E-Print Network (OSTI)

structures of proteins, has been extensively investigated to examine its role in protein folding. However the important role of sidechain packing in determining the specific pathway of protein folding. Additional 96 of Physics. DOI: 10.1063/1.1514574 I. INTRODUCTION Theoretical/computational studies of protein folding

Zhou, Yaoqi

424

Different Kinds of Protein Folding Identified with a Coarse-Grained Heteropolymer Model  

E-Print Network (OSTI)

Applying multicanonical simulations we investigated folding properties of off-lattice heteropolymers employing a mesoscopic hydrophobic-polar model. We study for various sequences folding channels in the free-energy landscape by comparing the equilibrium conformations with the folded state in terms of an angular overlap parameter. Although all investigated heteropolymer sequences contain the same content of hydrophobic and polar monomers, our analysis of the folding channels reveals a variety of characteristic folding behaviors known from realistic peptides.

Stefan Schnabel; Michael Bachmann; Wolfhard Janke

2009-02-16T23:59:59.000Z

425

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

426

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...

427

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

428

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

429

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.

430

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

431

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

432

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

433

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

434

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

435

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

436

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

437

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

438

Viscosity Dependence of the Folding Rates of Proteins  

Science Journals Connector (OSTI)

The viscosity (?) dependence of the folding rates for four sequences (the native state of three sequences is a ? sheet, while the fourth forms an ? helix) is calculated for off-lattice models of proteins. Assuming that the dynamics is given by the Langevin equation, we show that the folding rates increase linearly at low viscosities ?, decrease as 1/? at large ?, and have a maximum at intermediate values. The Kramers' theory of barrier crossing provides a quantitative fit of the numerical results. By mapping the simulation results to real proteins we estimate that for optimized sequences the time scale for forming a four turn ?-helix topology is about 500 ns, whereas for ? sheet it is about 10 ?s.

D. K. Klimov and D. Thirumalai

1997-07-14T23:59:59.000Z

439

Strong Nernst-Ettingshausen effect in folded graphene  

E-Print Network (OSTI)

We study electronic transport in graphene under the influence of a transversal magnetic field $\\f{B}(\\f{r})=B(x)\\f{e}_z$ with the asymptotics $B(x\\to\\pm\\infty)=\\pm B_0$, which could be realized via a folded graphene sheet in a constant magnetic field, for example. By solving the effective Dirac equation, we find robust modes with a finite energy gap which propagate along the fold -- where particles and holes move in opposite directions. Exciting these particle-hole pairs with incident photons would then generate a nearly perfect charge separation and thus a strong magneto-thermoelectric (Nernst-Ettingshausen) or magneto-photoelectric effect -- even at room temperature.

Friedemann Queisser; Ralf Schützhold

2013-01-17T23:59:59.000Z

440

A coarse-grained, ``realistic'' model for Protein Folding  

E-Print Network (OSTI)

A phenomenological model hamiltonian to describe the folding of a protein with any given sequence is proposed. The protein is thought of as a collection of pieces of helices; as a consequence its configuration space increases with the number of secondary structure elements rather than with the number of residues. The hamiltonian presents both local (i.e. single helix, accounting for the stiffness of the chain) and non local (interactions between hydrophobically-charged helices) terms, and is expected to provide a first tool for studying the folding of real proteins. The partition function for a simplified, but by no means trivial, version of the model is calculated almost completely in an analytical way. The latter simplified model is also applied to the study of a synthetic protein, and some preliminary results are shown.

Pierpaolo Bruscolini

1997-07-24T23:59:59.000Z

Note: This page contains sample records for the topic "faults folds grabens" 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

Invariant patterns in crystal lattices: Implications for protein folding algorithms  

SciTech Connect

Crystal lattices are infinite periodic graphs that occur naturally in a variety of geometries and which are of fundamental importance in polymer science. Discrete models of protein folding use crystal lattices to define the space of protein conformations. Because various crystal lattices provide discretizations of the same physical phenomenon, it is reasonable to expect that there will exist invariants across lattices related to fundamental properties of the protein folding process. This paper considers whether performance-guaranteed approximability is such an invariant for HP lattice models. The authors define a master approximation algorithm that has provable performance guarantees provided that a specific sublattice exists within a given lattice. They describe a broad class of crystal lattices that are approximable, which further suggests that approximability is a general property of HP lattice models.

HART,WILLIAM E.; ISTRAIL,SORIN

2000-06-01T23:59:59.000Z

442

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

443

When pigs fly: a study of computer generated paper folding  

E-Print Network (OSTI)

&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Carol LaFayette Committee Members, Frederic I. Parke Michael Greenwald Head of Department, Tim McLaughlin December 2008... Major Subject: Visualization Sciences iii ABSTRACT When Pigs Fly: A Study of Computer Generated Paper Folding. (December 2008) Elizabeth Jeanette Nitsch, B.E.D., Texas A&M University Chair of Advisory Committee: Prof. Carol LaFayette...

Nitsch, Elizabeth Jeanette

2009-05-15T23:59:59.000Z

444

Invariant patterns in crystal lattices: Implications for protein folding algorithms  

SciTech Connect

Crystal lattices are infinite periodic graphs that occur naturally in a variety of geometries and which are of fundamental importance in polymer science. Discrete models of protein folding use crystal lattices to define the space of protein conformations. Because various crystal lattices provide discretizations of the same physical phenomenon, it is reasonable to expect that there will exist ``invariants`` across lattices that define fundamental properties of protein folding process; an invariant defines a property that transcends particular lattice formulations. This paper identifies two classes of invariants, defined in terms of sublattices that are related to the design of algorithms for the structure prediction problem. The first class of invariants is, used to define a master approximation algorithm for which provable performance guarantees exist. This algorithm can be applied to generalizations of the hydrophobic-hydrophilic model that have lattices other than the cubic lattice, including most of the crystal lattices commonly used in protein folding lattice models. The second class of invariants applies to a related lattice model. Using these invariants, we show that for this model the structure prediction problem is intractable across a variety of three-dimensional lattices. It`` turns out that these two classes of invariants are respectively sublattices of the two- and three-dimensional square lattice. As the square lattices are the standard lattices used in empirical protein folding` studies, our results provide a rigorous confirmation of the ability of these lattices to provide insight into biological phenomenon. Our results are the first in the literature that identify algorithmic paradigms for the protein structure prediction problem which transcend particular lattice formulations.

Hart, W.E.; Istrail, S.

1995-12-11T23:59:59.000Z

445

Elastic energy of proteins and the stages of protein folding  

E-Print Network (OSTI)

We propose a universal elastic energy for proteins, which depends only on the radius of gyration $R_{g}$ and the residue number $N$. It is constructed using physical arguments based on the hydrophobic effect and hydrogen bonding. Adjustable parameters are fitted to data from the computer simulation of the folding of a set of proteins using the CSAW (conditioned self-avoiding walk) model. The elastic energy gives rise to scaling relations of the form $R_{g}\\sim N^{\

Lei, Jinzhi

2010-01-01T23:59:59.000Z

446

Combined approach to the inverse protein folding problem. Final report  

SciTech Connect

The main scientific contribution of the project ''Combined approach to the inverse protein folding problem'' submitted in 1996 and funded by the Department of Energy in 1997 is the formulation and development of the idea of the multilink recognition method for identification of functional and structural homologues of newly discovered genes. This idea became very popular after they first announced it and used it in prediction of the threading targets for the CASP2 competition (Critical Assessment of Structure Prediction).

Ruben A. Abagyan

2000-06-01T23:59:59.000Z

447

Review Protein folding: Then and now www.elsevier.com/locate/yabbi  

E-Print Network (OSTI)

Over the past three decades the protein folding field has undergone monumental changes. Originally a purely academic question, how a protein folds has now become vital in understanding diseases and our abilities to rationally manipulate cellular life by engineering protein folding pathways. We review and contrast past and recent developments in the protein folding field. Specifically, we discuss the progress in our understanding of protein folding thermodynamics and kinetics, the properties of evasive intermediates, and unfolded states. We also discuss how some abnormalities in protein folding lead to protein aggregation and human diseases.

Yiwen Chen; Feng Ding; Huifen Nie; Adrian W. Serohijos; Shantanu Sharma; Kyle C. Wilcox; Shuangye Yin; Nikolay V. Dokholyan

2007-01-01T23:59:59.000Z

448

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

449

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

450

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

451

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

452

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

453

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

454

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

455

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

456

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

457

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

458

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

459

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

460

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

Note: This page contains sample records for the topic "faults folds grabens" 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

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

462

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

463

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

464

File:GM-79 B-Bprime.pdf | Open Energy Information  

Open Energy Info (EERE)

section through the Valles Caldera. The section transects the Valles and Toledo ring fracture zones, the Redondo Creek Graben, and the Jemez Fault Zone on the southwestern margin...

465

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

466

Folded reflective tandem polymer solar cell doubles efficiency  

Science Journals Connector (OSTI)

Conjugated polymers are promising materials for the production of inexpensive and flexible photovoltaic cells. Organic materials display tunable optical absorption within a large spectral range. This enables the construction of organic tandem photovoltaic cells. The authors here demonstrate a reflective tandem cell where single cells are reflecting the nonabsorbed light upon another adjacent cell. By folding two planar but spectrally different cells toward each other spectral broadening and light trapping are combined to give an enhancement of power conversion efficiency of a factor of 1.8 ± 0.3 .

Kristofer Tvingstedt; Viktor Andersson; Fengling Zhang; Olle Inganäs

2007-01-01T23:59:59.000Z

467

Directed transport as a mechanism for protein folding in vivo  

E-Print Network (OSTI)

We propose a model for protein folding in vivo based on a Brownian-ratchet mechanism in the multidimensional energy landscape space. The device is able to produce directed transport taking advantage of the assumed intrinsic asymmetric properties of the proteins and employing the consumption of energy provided by an external source. Through such a directed transport phenomenon, the polypeptide finds the native state starting from any initial state in the energy landscape with great efficacy and robustness, even in the presence of different type of obstacles. This model solves Levinthal's paradox without requiring biased transition probabilities but at the expense of opening the system to an external field.

Ernesto Gonzalez-Candela; Victor Romero-Rochin

2009-09-23T23:59:59.000Z

468

Microsecond Microfluidic Mixing for Investigation of Protein Folding Kinetics  

SciTech Connect

We have developed and characterized a mixer to study the reaction kinetics of protein folding on a microsecond timescale. The mixer uses hydrodynamic focusing of pressure-driven flow in a microfluidic channel to reduce diffusion times as first demonstrated by Knight et al.[1]. Features of the mixer include 1 {micro}s mixing times, sample consumptions of order 1 nl/s, loading sample volumes on the order of microliters, and the ability to manufacture in fused silica for compatibility with most spectroscopic methods.

Hertzog, D E; Santiago, J G; Bakajin, O

2005-02-10T23:59:59.000Z

469

Microsecond Microfluidic Mixing for Investigation of Protein Folding Kinetics  

SciTech Connect

We have developed and characterized a mixer to study the reaction kinetics of protein folding on a microsecond timescale. The mixer uses hydrodynamic focusing of pressure-driven flow in a microfluidic channel to reduce diffusion times as first demonstrated by Knight et al.[1]. Features of the mixer include 1 {micro}s mixing times, sample consumptions of order 1 nl/s, loading sample volumes on the order of microliters, and the ability to manufacture in fused silica for compatibility with most spectroscopic methods.

Hertzog, D E; Santiago, J G; Bakajin, O

2003-06-25T23:59:59.000Z

470

Conformation changes and protein folding induced by \\phi^4 interaction  

E-Print Network (OSTI)

A model to describe the mechanism of conformational dynamics in protein based on matter interactions using lagrangian approach and imposing certain symmetry breaking is proposed. Both conformation changes of proteins and the injected non-linear sources are represented by the bosonic lagrangian with an additional \\phi^4 interaction for the sources. In the model the spring tension of protein representing the internal hydrogen bonds is realized as the interactions between individual amino acids and nonlinear sources. The folding pathway is determined by the strength of nonlinear sources that propagate through the protein backbone. It is also shown that the model reproduces the results in some previous works.

Januar, M; Handoko, L T

2011-01-01T23:59:59.000Z

471

Renaissance of paper models and folded plate structures in glass  

Science Journals Connector (OSTI)

This paper presents the development of glass folded plate structures. Glass will not only be used as a transparent covering but as a load-bearing element for the whole structure. A complete outline ranging from the architectural approach including simple paper models to structural analysis will be presented. The structural concept and its functional characteristics will be confirmed by finite element analysis. Moreover, this paper will also put into focus the geometrical diversity and individuality and will present mathematical algorithms as definitions of the geometrical freeform.

Stefan Trometer; Mathias Krupna

2010-01-01T23:59:59.000Z

472

A Route to Scale up DNA Origami Using DNA Tiles as Folding Staples  

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

A Route to Scale up DNA Origami Using DNA Tiles as Folding Staples Authors: Zhao, Z., Yan, H., and Liu, Y. Title: A Route to Scale up DNA Origami Using DNA Tiles as Folding Staples...

473

E-Print Network 3.0 - abakaliki fold belt Sample Search Results  

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

, British Columbia, Canada V8W 3P6 ABSTRACT--Two enigmas concerning the Cape Fold Belt (CFB), part... , and by convergence and the development of a foreland-verging fold and...

474

Protein folding and macromolecular dynamics : fundamental limits of length and time scales.  

E-Print Network (OSTI)

??In this thesis, physics-based models of protein folding at the secondary and tertiary level are developed to resolve long-standing issues of protein folding kinetics. As… (more)

Lin, Milo M.

2012-01-01T23:59:59.000Z

475

SciTech Connect: Protein-folding via divide-and-conquer optimization  

Office of Scientific and Technical Information (OSTI)

Protein-folding via divide-and-conquer optimization Citation Details In-Document Search Title: Protein-folding via divide-and-conquer optimization You are accessing a document...

476

Protein folding and phylogenetic tree reconstruction using stochastic approximation Monte Carlo  

E-Print Network (OSTI)

folding problems. The numerical results indicate that it outperforms simulated annealing and conventional Monte Carlo algorithms as a stochastic optimization algorithm. We also propose one method for the use of secondary structures in protein folding...

Cheon, Sooyoung

2007-09-17T23:59:59.000Z

477

Self-organization and mismatch tolerance in protein folding: General theory and an application  

E-Print Network (OSTI)

Self-organization and mismatch tolerance in protein folding: General theory and an application approaches to the so-called protein folding problem, mainly because the microscopic models have no explicit

Berry, R. Stephen

478

SciTech Connect: Protein-Folding Landscapes in Multi-Chain Systems  

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

Protein-Folding Landscapes in Multi-Chain Systems Citation Details In-Document Search Title: Protein-Folding Landscapes in Multi-Chain Systems Computational studies of proteins...

479

Efficient Traversal of Beta-Sheet Protein Folding Pathways Using Ensemble Models  

E-Print Network (OSTI)

Efficient Traversal of Beta-Sheet Protein Folding Pathways Using Ensemble Models SOLOMON SHENKER,1 introduce a complete methodology to

Gifford, David K.

480

The Trp Cage: Folding Kinetics and Unfolded State Topology via Molecular Dynamics Simulations  

E-Print Network (OSTI)

, ) 91 ps-1). The Folding@Home distributed computing project was used to generate an aggregate simulation

Snow, Christopher

Note: This page contains sample records for the topic "faults folds grabens" 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

Controlling protein molecular dynamics: How to accelerate folding while preserving the native state  

E-Print Network (OSTI)

pioneered, in particular, in the Folding@Home project and taken to the extent where hundred of thousands

Nerukh, Dmitry

482

Identification of Characteristic Protein Folding Channels in a Coarse-Grained Hydrophobic-Polar Peptide Model  

E-Print Network (OSTI)

Folding channels and free-energy landscapes of hydrophobic-polar heteropolymers are discussed on the basis of a minimalistic off-lattice coarse-grained model. We investigate how rearrangements of hydrophobic and polar monomers in a heteropolymer sequence lead to completely different folding behaviors. Studying three exemplified sequences with the same content of hydrophobic and polar residues, we can reproduce within this simple model two-state folding, folding through intermediates, as well as metastability.

Stefan Schnabel; Michael Bachmann; Wolfhard Janke

2007-10-25T23:59:59.000Z

483

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

484

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

485

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

486

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

487

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

488

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

489

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

490

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

491

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

492

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

493

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

494

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

495

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...

496

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

497

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.

498

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

499

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

500

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