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1

E-Print Network 3.0 - american gas-light journal Sample Search...  

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

gas-light journal Search Powered by Explorit Topic List Advanced Search Sample search results for: american gas-light journal Page: << < 1 2 3 4 5 > >> 1 WILDLIFE TECHNIQUES NRM...

2

Chip-Firing And A Devil’s Staircase  

E-Print Network [OSTI]

The devil’s staircase – a continuous function on the unit interval [0,1] which is not constant, yet is locally constant on an open dense set – is the sort of exotic creature a combinatorialist might never expect to encounter in “real life.” We show how a devil’s staircase arises from the combinatorial problem of parallel chip-firing on the complete graph. This staircase helps explain a previously observed “mode locking ” phenomenon, as well as the surprising tendency of parallel chip-firing to find periodic states of small period.

Lionel Levine

3

THE DEVIL’S STAIRCASE DIMENSIONS AND MEASURE-THEORETICAL ENTROPY OF MAPS WITH HORIZONTAL GAP  

E-Print Network [OSTI]

Abstract. This work elucidates the measure-theoretical entropy and dimensions of a unimodal map with a horizontal gap. The measure-theoretical entropy and dimensions of the Ft (which is defined later)are shown to form a devil’s staircase structure with respect to the gap size t. Pesin’s formula for gap maps is also considered. 1.

Jung-chao Ban; Song-sun Lin

4

Commensurate phases, incommensurate phases and the devil’s staircase  

E-Print Network [OSTI]

Modulated structures with periods which are incommensurable (or high-order com-mensurable) with the basic lattice are quite common in condensed-matter physics. The structure may be another lattice, a periodic lattice distortion, a helical or sinusoidal magnetic structure, or a charge density wave in one, two or three dimensions. This review surveys recent theories on the transition between commensurate (C) and incommensurate (I) phases, and on the properties of the ‘incommensurate ’ phase. The predictions of theories will be compared with experiments. The CI transition is usually described in terms of wall, or soliton, formation. The nature of the transition and the structure of the I phase are quite different in two and three dimensions. In three dimensions the I phase seems to consist of an infinity of high-order locked C phases, which may or may not be separated by an infinity of truly incommensurate phases. This behaviour is known as the ‘devil’s staircase’. In two dimensions the incommensurate phase (at T # 0) is a ‘floating ’ phase without complete long-range order, and it does not ‘lock-in ’ at high-order commensurate phases. Phase diagrams are determined by the stability of two types of ‘topological ’ defects: walls, which destabilise the C phase with respect to I phases, and dislocations or vortices which generate paramagnetic or fluid phases. A consequence of this competition is that for sufficiently low order of commensurability the C and I phases are separated by a fluid phase. The properties of modulated systems can be studied by iterating certain area-preserving two-dimensional maps. Very recent studies indicate that, in addition to C and I phases, there are chaotic structures which are at least metastable. The chaotic regimes separate C and I phases and may be described as randomly pinned solitons. The relevance of the chaotic regimes to adsorbed monolayers, pinning of charge density waves, Peierls transitions and spin glasses is briefly discussed. This review was received in July 1981.

Per Bak

5

Bifractality of the Devil’s staircase appearing in the Burgers equation with Brownian initial velocity  

E-Print Network [OSTI]

Submitted to J. Stat. Phys. It is shown that the inverse Lagrangian map for the solution of the Burgers equation (in the inviscid limit) with Brownian initial velocity presents a bifractality (phase transition) similar to that of the Devil’s staircase for the standard triadic Cantor set. Both heuristic and rigorous derivations are given. It is explained why artifacts can easily mask this phenomenon in numerical simulations. 1

E. Aurell; U. Frisch; A. Noullez; M. Blank

1997-01-01T23:59:59.000Z

6

How smooth is a devil's staircase? F.M. Dekking * & Wenxia Li y  

E-Print Network [OSTI]

How smooth is a devil's staircase? F.M. Dekking referred to as the Devil's staircase (for a = 1_3): F (x) = ~([0; x]); x 2

Li, Wenxia

7

One-dimensional Ising model and the complete devil's staircase  

SciTech Connect (OSTI)

It is shown rigorously that the one-dimensional Ising model with long-range antiferromagnetic interactions exhibits a complete devil's staircase.

Bak, P.; Bruinsma, R.

1982-07-26T23:59:59.000Z

8

Random complex dynamics and devil's coliseums Hiroki Sumi  

E-Print Network [OSTI]

of the devil's staircase, and we call T a "devil's coliseum." We investigate the details of T when G fractal set. Moreover, under this condition, we investigate the pointwise H¨older exponents of T. 1 iteration, Markov process, Julia sets, fractal geometry, (backward) iterated function systems, interaction

Sumi, Hiroki

9

Random complex dynamics and devil's coliseums Hiroki Sumi  

E-Print Network [OSTI]

. Moreover, the function T has a kind of monotonicity. It turns out that T is a complex analogue of the devil's staircase, and we call T a "devil's coliseum." We investigate the details of T when G is generated by two polynomials. In this case, T varies precisely on the Julia set of G, which is a thin fractal set. Moreover

Sumi, Hiroki

10

Random complex dynamics and devil's coliseums Hiroki Sumi  

E-Print Network [OSTI]

. It turns out that T is a complex analogue of the devil's staircase, and we call T a "devil's coliseum." We on the Julia set of G, which is a thin fractal set. Moreover, under this condition, we investigate, random iteration, Markov process, Julia sets, fractal geometry, (backward) iterated function systems

Sumi, Hiroki

11

Landbird Inventory for Devil's Postpile National Monument Final Report  

E-Print Network [OSTI]

Landbird Inventory for Devil's Postpile National Monument Final Report Rodney B. Siegel and Robert species observed during our 2003 landbird inventory, as well as species detected by Gates and Heath (2003....................................................................................33 #12;iii List of Tables Table 1. Coordinates of landbird inventory point count stations in Devil

DeSante, David F.

12

How smooth is a devil's staircase? F.M. Dekking  

E-Print Network [OSTI]

How smooth is a devil's staircase? F.M. Dekking & Wenxia Li Abstract Let the Cantor set C in R referred to as the Devil's staircase (for a = 1 3 ): F(x) = µ([0, x]), x [0, 1]. It is easy to check

Li, Wenxia

13

Random complex dynamics and devil's coliseums  

E-Print Network [OSTI]

We investigate the random dynamics of polynomial maps on the Riemann sphere and the dynamics of semigroups of polynomial maps on the Riemann sphere. In particular, the dynamics of a semigroup $G$ of polynomials whose planar postcritical set is bounded and the associated random dynamics are studied. In general, the Julia set of such a $G$ may be disconnected. We show that if $G$ is such a semigroup, then regarding the associated random dynamics, the chaos of the averaged system disappears in the $C^{0}$ sense, and the function $T_{\\infty}$ of probability of tending to $\\infty$ is continuous on the Riemann sphere and varies only on the Julia set of $G$. Moreover, the function $T_{\\infty}$ has a kind of monotonicity. It turns out that $T_{\\infty}$ is a complex analogue of the devil's staircase, and we call $T_{\\infty}$ a "devil's coliseum." We investigate the details of $T_{\\infty}$ when $G$ is generated by two polynomials. In this case, $T_{\\infty}$ varies precisely on the Julia set of $G$, which is a thin frac...

Sumi, Hiroki

2011-01-01T23:59:59.000Z

14

Town of Kill Devil Hills- Wind Energy Systems Ordinance  

Broader source: Energy.gov [DOE]

In October 2007, the town of Kill Devil Hills adopted an ordinance to regulate the use of wind-energy systems. The ordinance directs any individual or organization wishing to install a wind-energy...

15

Non-differentiability of devil's staircases and dimensions of subsets of Moran sets  

E-Print Network [OSTI]

Non-differentiability of devil's staircases and dimensions of subsets of Moran referred to as the Devil's staircase (for a = 1_3): F (x) = ~([0; x]); x 2 [0; 1

Li, Wenxia

16

Non-di erentiability of devil's staircases and dimensions of subsets of Moran sets  

E-Print Network [OSTI]

Non-di#11;erentiability of devil's staircases and dimensions of subsets of Moran sets Wenxia Li, #3. Consider the distribution function which is often referred to as the Devil's staircase (for a = 1 3 ): F (x

Li, Wenxia

17

How smooth is a devil's staircase? F.M. Dekking & Wenxia Li y  

E-Print Network [OSTI]

How smooth is a devil's staircase? F.M. Dekking #3; & Wenxia Li y Abstract Let the Cantor set C. Consider the distribution function which is often referred to as the Devil's staircase (for a = 1 3 ): F (x

Li, Wenxia

18

One-dimensional lattice gas and the universality of the Devil's staircase  

E-Print Network [OSTI]

L-179 One-dimensional lattice gas and the universality of the Devil's staircase S. E. Burkov Landau a non-zero stability interval Ap (6). The structure of the Devil's staircase is different for the cases have become the subject of keen interest [1-3]. I shall consider the simplest model exhibiting a Devil

Paris-Sud XI, Université de

19

NMR spectra and relaxation in incommensurate systems in the presence of a devil's staircase  

E-Print Network [OSTI]

1205 NMR spectra and relaxation in incommensurate systems in the presence of a devil's staircase R values equal to all rational numbers). According to the « devil's staircase » model [2, 3] - which takes cases is known as the incomplete and the second as the complete devil's staircase [2, 3]. It may thus

Paris-Sud XI, Université de

20

Physica D 142 (2000) 197216 Devil-staircase behavior of dynamical invariants in chaotic scattering  

E-Print Network [OSTI]

Physica D 142 (2000) 197­216 Devil-staircase behavior of dynamical invariants in chaotic scattering analysis indicates that the fractal dimension and other dynamical invariants are a devil-staircase type of function of the system parameter. Our results can also provide insight for similar devil-staircase

Lai, Ying-Cheng

Note: This page contains sample records for the topic "gaslight cupton devils" 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

On the entropy devil’s staircase in a family of gap-tent maps  

E-Print Network [OSTI]

To analyze the trade-off between channel capacity and noise-resistance in designing dynamical systems to pursue the idea of communications with chaos, we perform a measure theoretic analysis the topological entropy function of a “gap-tent map ” whose invariant set is an unstable chaotic saddle of the tent map. Our model system, the “gap-tent map ” is a family of tent maps with a symmetric gap, which mimics the presence of noise in physical realizations of chaotic systems, and for this model, we can perform many calculations in closed form. We demonstrate that the dependence of the topological entropy on the size of the gap has a structure of the devil’s staircase. By integrating over a fractal measure, we obtain analytical, piece-wise differentiable approximations of this dependence. Applying concepts of the kneading theory we find the position and the values of the entropy for all leading entropy plateaus. Similar properties hold also for the dependence of the fractal dimension of the invariant set and the escape rate.

Karol Zyczkowski; Erik M. Bollt

1999-01-01T23:59:59.000Z

22

Electron Climbing a 'Devil's Staircase' in Wave-Particle Interaction  

SciTech Connect (OSTI)

Numerous nonlinear driven systems display spectacular responses to forcing, including chaos and complex phase-locking plateaus characterized by 'devil's staircase', Arnold tongues, and Farey trees. In the universality class of Hamiltonian systems, a paradigm is the motion of a charged particle in two waves, which inspired a renormalization group method for its description. Here we report the observation of the underlying 'devil's staircase' by recording the beam velocity distribution function at the outlet of a traveling wave tube versus the amplitude of two externally induced waves.

Macor, Alessandro; Doveil, Fabrice; Elskens, Yves [Physique des interactions ioniques et moleculaires, Unite 6633 CNRS-Universite de Provence, Equipe turbulence plasma, case 321, Centre de Saint-Jerome, F-13397 Marseille cedex 20 (France)

2005-12-31T23:59:59.000Z

23

On the Complexity of Umbra and Penumbra O. Devillers  

E-Print Network [OSTI]

On the Complexity of Umbra and Penumbra J. Demouth O. Devillers H. Everett M. Glisse ¶ S of non-point light sources. A point is in the umbra if it does not see any part of any light source of the umbra. In this paper we prove various bounds on the complexity of the umbra and the penumbra cast

Paris-Sud XI, Université de

24

Area as a devil's staircase in twist maps  

SciTech Connect (OSTI)

In area-preserving maps, the area under an invariant set as a function of frequency is a devil's staircase. We show this staircase is the derivative of the average action of the invariant set with respect to frequency. This implies that resonances fill the phase space completely when there are no invariant curves.

Chen, Q.

1987-05-01T23:59:59.000Z

25

Devil's Staircase in Magnetoresistance of a Periodic Array of Scatterers  

E-Print Network [OSTI]

The nonlinear response to an external electric field is studied for classical non-interacting charged particles under the influence of a uniform magnetic field, a periodic potential, and an effective friction force. We find numerical and analytical evidence that the ratio of transversal to longitudinal resistance forms a Devil's staircase. The staircase is attributed to the dynamical phenomenon of mode-locking.

Jan Wiersig; Kang-Hun Ahn

2001-02-28T23:59:59.000Z

26

On a Devil’s staircase associated to the joint spectral radii of a family of pairs of matrices  

E-Print Network [OSTI]

The joint spectral radius of a finite set of real d×d matrices is defined to be the maximum possible exponential rate of growth of products of matrices drawn from that set. In previous work with K. G. Hare and J. Theys we showed that for a certain one-parameter family of pairs of matrices, this maximum possible rate of growth is attained along Sturmian sequences with a certain characteristic ratio which depends continuously upon the parameter. In this note we answer some open questions from that paper by showing that the dependence of the ratio function upon the parameter takes the form of a Devil’s staircase. We show in particular that this Devil’s staircase attains every rational value strictly between 0 and 1 on some interval, and attains irrational values only in a set of Hausdorff dimension zero. This result generalises to include certain one-parameter families considered by other authors. We also give explicit formulas for the preimages of both rational and irrational numbers under the ratio function, thereby establishing a large family of pairs of matrices for which the joint spectral radius may be calculated exactly.

Ian D. Morris; Nikita Sidorov

1107-01-01T23:59:59.000Z

27

Complete devil's staircase in the one-dimensional lattice gas Comment on one-dimensional lattice gas and the universality  

E-Print Network [OSTI]

L-247 Complete devil's staircase in the one-dimensional lattice gas Comment on « one-dimensional lattice gas and the universality of the devil's staircase » bv S. E. Burkov S. Aubry Laboratoire Léon of the complete devil's staircase for the lattice gas model. Thus, we show that the behaviour at the commensurate

Boyer, Edmond

28

ccsd-00022730,version2-20Apr2006 Direct observation of a "devil's staircase" in wave-particle interaction  

E-Print Network [OSTI]

ccsd-00022730,version2-20Apr2006 Direct observation of a "devil's staircase" in wave-J´er^ome, F-13397 Marseille cedex 20 We report the experimental observation of a "devil's staircase" in a time exhibits a "devil's staircase" behavior for increasing excitation amplitude, due to the nonlinear forcing

Paris-Sud XI, Université de

29

Natural history of thorny devils Moloch horridus (Lacertilia: Agamidae) in the Great Victoria Desert  

E-Print Network [OSTI]

183 Natural history of thorny devils Moloch horridus (Lacertilia: Agamidae) in the Great Victoria received August 1997; accepted February 1998 Abstract Daily movements and activity of three male and five female thorny devils (Moloch horridus) were monitored using biotelemetry in the Great Victoria Desert

Pianka, Eric R.

30

Microscopic models of quasicrystals J. Jdrzejewski and J. Mikisz, Devil's staircase for nonconvex interactions,  

E-Print Network [OSTI]

Microscopic models of quasicrystals J. Jdrzejewski and J. Mikisz, Devil's staircase for nonconvex-dimensional infinite-range lattice-gas interactions, molecules consisting of two particles form a molecular devil's staircase in the unique ground- state measure. The structure of the ground set is that of a Cantor set

Miekisz, Jacek

31

Exact Solution of Frenkel-Kontorova Models with a Complete Devil’s Staircase in Higher Dimensions  

E-Print Network [OSTI]

We solve exactly a class of Frenkel-Kontorova models with piecewise parabolic potential, which has d sub-wells in a period. With careful analysis, we show that the phase diagram of the minimum enthalpy configurations exhibits the structure of a complete d-dimensional devil’s staircase. The winding number of a minimum enthalpy configuration is locked to rational values, while the fraction of atoms in each sub-well is locked to values which are subcommensurable with the winding number. PACS number(s):03.20.+i, 05.45.+b, 64.60.Ak Typeset using REVTEX 1 Periodic modulated structures are quite common in both condensed-matter and dynamical systems. As suitable parameters are varied, such structures may go through commensurate-incommensurate phase transitions. In particular, when a system is in the highly nonlinear regime, there is generally a tendency for the periodicity to lock into values which are commensurable with the lattice constant [1]. The Frenkel-Kontorova (FK) model is just such an example, which describes a one-dimensional chain of coupled atoms subject to a periodic potential V: H({un}) = ?

Hsien-chung Kao; Shih-chang Lee; Wen-jer Tzeng

32

Devil's staircase and order without periodicity in classical condensed matter  

SciTech Connect (OSTI)

The existence of incommensurate structures proves that crystal ordering is not always the most stable one for nonquantum matter. Some properties of structures which are obtained by minimizing a free energy are investigated in the Frenkel Kontorova and related models. It is shown that an incommensurate structure can be either quasi-sinusoidal with a phason mode or built out of a sequence of equidistant defects (discommensurations) which are locked to the lattice by the Peierls force. In that situation the variation of the commensurability ratio with physical parameters forms a complete devil's staircase with interesting physical consequences. Some general results for all structures which minimize a free energy are given. In addition to the known crystal and incommensurate structures, the existence of a new class of structures which have local order at all scale is predicted. Properties of the new class are described in physical terms and possible applications to certain amorphous or nonstoichiometric compounds are discussed.

Aubry, S.

1982-01-01T23:59:59.000Z

33

Devil's staircase for nonconvex interactions This article has been downloaded from IOPscience. Please scroll down to see the full text article.  

E-Print Network [OSTI]

Devil's staircase for nonconvex interactions This article has been downloaded from IOPscience. Lett., 50 (3), pp. 307­311 (2000) EUROPHYSICS LETTERS 1 May 2000 Devil's staircase for nonconvex as the complete devil's staircase. Lattice systems (or lattice gases), where the space available to particles

Miekisz, Jacek

34

Magnetization curves for thin films of layered type-II superconductors, Kolmogorov-Arnold-Moser theory, and the devil's staircase  

SciTech Connect (OSTI)

Magnetization curves for a thin-layered superconducting film in parallel magnetic field have been shown to become devil's staircases provided the superconducting layers are perpendicular to the film plane. The transition from an incomplete to a complete devil's staircase with decreasing temperature is predicted. A chain of vortices is described by the generalized Frenkel-Kontorova model.

Burkov, S.E. (Laboratory of Atomic and Solid State Physics, Clark Hall, Cornell University, Ithaca, New York (USA) Landau Institute for Theoretical Physics, Moscow (U.S.S.R))

1991-08-01T23:59:59.000Z

35

Long period structures in Ti1+xAl3-x alloys : experimental evidence of a devil's staircase ?  

E-Print Network [OSTI]

595 Long period structures in Ti1+xAl3-x alloys : experimental evidence of a devil's staircase ? A of a so-called devil's staircase. The experimental results are compared with those obtained in Ag3Mg domain size M depends on temperature; this dependence corresponds to a simple (harmless) staircase below

Boyer, Edmond

36

From Spider Robots to Half Disk Robots J-D. Boissonnat O. Devillers S. Lazard  

E-Print Network [OSTI]

From Spider Robots to Half Disk Robots J-D. Boissonnat O. Devillers S. Lazard INRIA, BP 93 06902 robot. The body of this robot is a single point and the legs are line segments attached to the body. The robot can only put its feet on some regions, called the foothold regions. Moreover, the robot is subject

Paris-Sud XI, Université de

37

Bifractality of the Devil's staircase appearing in the Burgers equation with Brownian initial velocity  

E-Print Network [OSTI]

It is shown that the inverse Lagrangian map for the solution of the Burgers equation (in the inviscid limit) with Brownian initial velocity presents a bifractality (phase transition) similar to that of the Devil's staircase for the standard triadic Cantor set. Both heuristic and rigorous derivations are given. It is explained why artifacts can easily mask this phenomenon in numerical simulations.

E. Aurell; U. Frisch; A. Noullez; M. Blank

1996-11-20T23:59:59.000Z

38

Devil's Staircase in the Magnetoresistance of a Periodic Array of Scatterers  

SciTech Connect (OSTI)

The nonlinear response to an external electric field is studied for classical noninteracting charged particles under the influence of a uniform magnetic field, a periodic potential, and an effective friction force. We find numerical and analytical evidence that the ratio of transverse to longitudinal resistance forms a Devil's staircase. The staircase is attributed to the dynamical phenomenon of mode-locking.

Wiersig, Jan; Ahn, Kang-Hun

2001-07-09T23:59:59.000Z

39

Branch structures at the steps of the devil's staircase of the sine circle map  

SciTech Connect (OSTI)

We have discovered substructures consisting of branches at each step of the devil's staircase of the sine circle map. These substructures are found to follow the hierarchy of the Farey tree. We develop a formalism to relate the rational winding number {ital W}={ital p}/{ital q} to the number of branches in these substructures.

Wen, H.C. (Department of Physics, Stanford University, Stanford, California 94305 (United States)); Duong-van, M. (Physics Department, Lawrence Livermore National Laboratory, University of California, Livermore, California 94550 (United States))

1992-09-15T23:59:59.000Z

40

Parallel Chip-Firing on the Complete Graph: Devil's Staircase and Poincare Rotation Number  

E-Print Network [OSTI]

We study how parallel chip-firing on the complete graph K_n changes behavior as we vary the total number of chips. Surprisingly, the activity of the system, defined as the average number of firings per time step, does not increase smoothly in the number of chips; instead it remains constant over long intervals, punctuated by sudden jumps. In the large n limit we find a "devil's staircase" dependence of activity on the number of chips. The proof proceeds by reducing the chip-firing dynamics to iteration of a self-map of the circle S^1, in such a way that the activity of the chip-firing state equals the Poincare rotation number of the circle map. The stairs of the devil's staircase correspond to periodic chip-firing states of small period.

Levine, Lionel

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gaslight cupton devils" 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

VOLUME 82, NUMBER 2 P H Y S I C A L R E V I E W L E T T E R S 11 JANUARY 1999 Phase Locking, Devil's Staircases, Farey Trees, and Arnold Tongues  

E-Print Network [OSTI]

V I curves have a devil's staircase structure, with plateaus occurring near the driving angles along responses with complex phase-locking plateaus characterized by devil's staircases, Arnold tongues, and Farey form a devil's staircase structure [1­ 3]. At the boundaries of certain locked phases the VL undergoes

Nori, Franco

42

On the entropy devil's staircase in a family of gap-tent maps  

E-Print Network [OSTI]

We analyze dynamical properties of a "gap-tent map" - a family of 1D maps with a symmetric gap, which mimics the presence of noise in physical realizations of chaotic systems. We demonstrate that the dependence of the topological entropy on the size of the gap has a structure of the devil's staircase. By integrating over a fractal measure, we obtain analytical, piece-wise differentiable approximations of this dependence. Applying concepts of the kneading theory we find the position and the values of the entropy for all leading entropy plateaus. Similar properties hold also for the dependence of the fractal dimension of the invariant set and the escape rate.

Karol Zyczkowski; Erik M. Bollt

1998-07-07T23:59:59.000Z

43

Farey tree and devil's staircase of a modulated external-cavity semiconductor laser  

SciTech Connect (OSTI)

We report frequency locking at Farey fractions of an electrically modulated semiconductor laser within an external cavity. The winding numbers as a function of the ratio of the modulation frequency to inverse resonator round trip time show the hierarchy of a Farey tree and the structure of a devil's staircase. The dimension of the set complementary to the stairs is determined to be 0.89. This demonstrates that the external-cavity semiconductor laser exhibits the universal properties characteristic for nonlinear systems driven by two competing frequencies.

Baums, D.; Elsasser, W.; Gobel, E. O.

1989-07-10T23:59:59.000Z

44

Evidence for a devil's staircase in holmium produced by an applied magnetic field  

SciTech Connect (OSTI)

The magnetic structure of holmium has been studied using neutron diffraction when a magnetic field is applied along the {ital c} axis. The field has the effect of suppressing the onset of the commensurate cone phase found at low temperatures in zero field, and instead produces a series of spin-slip structures. In contrast to the zero-field diffraction experiments, where a continuous variation of the magnetic wave vector {bold q} was observed, we find that below {approx}15 K the wave vector {bold q} is always commensurate and forms a devil's staircase with increasing field.

Cowley, R.A.; Jehan, D.A. (Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford (United Kingdom)); McMorrow, D.F. (Department of Physics, University of Edinburgh, Mayfield Road, Edinburgh, Scotland (United Kingdom)); McIntyre, G.J. (Institut Laue-Langevin, 156X, 38042, Grenoble, CEDEX (France))

1991-03-18T23:59:59.000Z

45

Devil's staircase, spontaneous-DC bias, and chaos via quasiperiodic plasma oscillations in semiconductor superlattices  

E-Print Network [OSTI]

We study a plasma instability in semiconductor superlattices irradiated by a monochromatic, pure AC electric field. The instability leads to sustained oscillations at a frequency \\omega 2 that is either incommensurate to the drive, or frequency-locked to it, \\omega 2 = (p/q) \\omega. A spontaneously generated DC bias is found when either p or q in the locking ratio are even integers. Frequency locked regions form Arnol'd tongues in parameter space and the ratio \\omega 2 / \\omega\\ exhibits a Devil's staircase. A transition to chaotic motion is observed as resonances overlap.

Jukka Isohätälä; Kirill N. Alekseev

2012-01-30T23:59:59.000Z

46

Direct observation of a "devil's staircase'' in wave-particle interaction  

E-Print Network [OSTI]

We report the experimental observation of a "devil's staircase'' in a time dependent system considered as a paradigm for the transition to large scale chaos in the universality class of hamiltonian systems. A test electron beam is used to observe its non-self-consistent interaction with externally excited wave(s) in a Travelling Wave Tube (TWT). A trochoidal energy analyzer records the beam energy distribution at the output of the interaction line. An arbitrary waveform generator is used to launch a prescribed spectrum of waves along the slow wave structure (a 4 m long helix) of the TWT. The resonant velocity domain associated to a single wave is observed, as well as the transition to large scale chaos when the resonant domains of two waves and their secondary resonances overlap. This transition exhibits a "devil's staircase'' behavior for increasing excitation amplitude, due to the nonlinear forcing by the second wave on the pendulum-like motion of a charged particle in one electrostatic wave.

Fabrice Doveil; Alessandro Macor; Yves Elskens

2006-04-13T23:59:59.000Z

47

Direct observation of a 'devil's staircase' in wave-particle interaction  

SciTech Connect (OSTI)

We report the experimental observation of a 'devil's staircase' in a time-dependent system considered as a paradigm for the transition to large-scale chaos in the universality class of Hamiltonian systems. A test electron beam is used to observe its non-self-consistent interaction with externally excited wave(s) in a traveling wave tube (TWT). A trochoidal energy analyzer records the beam energy distribution at the output of the interaction line. An arbitrary waveform generator is used to launch a prescribed spectrum of waves along the slow wave structure (a 4 m long helix) of the TWT. The resonant velocity domain associated to a single wave is observed, as well as the transition to large-scale chaos when the resonant domains of two waves and their secondary resonances overlap. This transition exhibits a 'devil's staircase' behavior for increasing excitation amplitude, due to the nonlinear forcing by the second wave on the pendulum-like motion of a charged particle in one electrostatic wave.

Doveil, Fabrice; Macor, Alessandro; Elskens, Yves [Physique des interactions ioniques et moleculaires, Unite 6633 CNRS-Universite de Provence, Equipe turbulence plasma, case 321, Centre de Saint-Jerome, F-13397 Marseille cedex 20 (France)

2006-09-15T23:59:59.000Z

48

Josephson junction at the onset of chaos: A complete devil's staircase  

SciTech Connect (OSTI)

By analog computer calculations of the resistively and capacitively shunted Josephson junction model, I-V characteristics are measured for several choices of the parameters in the Josephson equation. The points, where hysteresis sets in, are related to cubic inflection points in the return map. For different values of the amplitude and the frequency of the imposed ac field the critical line is determined in the (I,G) space, where I is the dc current and G is the damping factor. Furthermore, the subharmonic steps along the critical line form a complete devil's staircase with a fractal dimension Dapprox.0.87 and a decay exponent for the (1/Q)-steps deltaapprox.3. Besides the hysteresis which gives occasion for a chaotic behavior everywhere below a certain critical voltage, hysteresis also turns up locally. It is suggested that the critical points where local hysteresis occurs can be found by use of a local approximation.

Alstrom, P.; Levinsen, M.T.

1985-03-01T23:59:59.000Z

49

Analog simulations of josephson junction in a microwave field. Devil's staircase, fractal dimension, and decay constants  

SciTech Connect (OSTI)

The RSJ model of the Josephson junction in the presence of a microwave field is studied using an analog computer, with special attention to the behavior of this system near or at the critical line, where the set of substeps forms a complete devil's staircase on the I-V characteristic. A value of fractal dimension D = 0.868 +/- 0.002 is determined from 240 substeps between the winding numbers W = 0 and W = 1. Four values of decay constants are determined. The results agree very well with the prediction obtained from the one-dimensional circle map. A self-similarity graph is shown confirming that the staircase is very near the critical line. Results confirm the universal and global character of D and decay constants on the critical line, as was suggested by Jensen et al.

Kuznik, V.; Odehnal, M.

1986-12-01T23:59:59.000Z

50

Devil's staircase  

SciTech Connect (OSTI)

When the interaction between an oscillator and its driver is strong enough, the oscillator will resonate at, or ''lock'' onto, an infinity of driving frequencies, giving rise to steps with a fractal dimension between 0 and 1.

Bak, P.

1986-12-01T23:59:59.000Z

51

Devils staircase like behavior of the range of random time series associated with the tangled nature of evolution  

E-Print Network [OSTI]

We present empirical evidence that the range of random time series associated with the tangled nature model of evolution exhibits a devils staircase like behavior characterized by logarithmic trend and the universal multi-affine spectrum of scaling exponents xi_c of q leq q_c moments of q-order height-height correlations, whereas for q > q_c the moments behaves logarithmically.

Balankin, A S; Balankin, Alexander S.

2005-01-01T23:59:59.000Z

52

VOLUME 76, NUMBER 4 P H Y S I C A L R E V I E W L E T T E R S 22 JANUARY 1996 Devil's Staircase, Critical Thickness, and Propagating Fingers in Antiferroelectric  

E-Print Network [OSTI]

VOLUME 76, NUMBER 4 P H Y S I C A L R E V I E W L E T T E R S 22 JANUARY 1996 Devil's Staircase should be capable of describing include the "devil's-staircase" be- havior of the commensurability

Taylor, Philip L.

53

On the amplitude of External Perturbation and the Chaos via Devil's Staircase and the Hidden Attractors  

E-Print Network [OSTI]

We made the chaotic circuit proposed by Chua and the memristic circuit proposed by Muthuswamy and Chua, and analyzed the behavior of the voltage of the capacitor, electric current in the inductor and the voltage of the memristor by adding an external sinusoidal oscillation ${\\dot y}(t)\\simeq {\\dot i_L}(t)$ of a type $\\gamma\\omega \\cos\\omega t$, while the ${\\dot x}(t)\\simeq {\\dot v_C}(t)$ is given by $y(t)/C$, and studied the Devil's staircase route to chaos. We compared the frequency of the driving oscillation $f_s$ and the frequency of the response $f_d$ in the window and assigned $W=f_s/f_d$ to each window. When capacitor $C=1$, we observe stable attractors of Farey sequences $\\displaystyle W=\\{\\frac{1}{2}, \\frac{2}{3},\\frac{3}{4},\\frac{4}{5}, \\cdots ,\\frac{14}{15},\\frac{1}{1}\\}$, which can be interpreted as hidden attractors, while when $C=1.2$, we observe unstable attractors. Possible role of octonions in quantum mechanics and Cartan's supersymmetry is discussed.

Sadataka Furui; Tomoyuki Takano

2014-12-12T23:59:59.000Z

54

Twist map, the extended Frenkel-Kontorova model and the devil's staircase  

SciTech Connect (OSTI)

Exact results obtained on the discrete Frenkel Kontorova (FK) model and its extensions during the past few years are reviewed. These models are associated with area preserving twist maps of the cylinder (or a part of it) onto itself. The theorems obtained for the FK model thus yields new theorems for the twist maps. The exact structure of the ground-states which are either commensurate or incommensurate and assert the existence of elementary discommensurations under certain necessary and sufficient conditions is described. Necessary conditions for the trajectories to represent metastable configurations, which can be chaotic, are given. The existence of a finite Peierl Nabarro barrier for elementary discommensurations is connected with a property of non-integrability of the twist map. The existence of KAM tori corresponds to undefectible incommensurate ground-states and a theorem is given which asserts that when the phenon spectrum of an incommensurate ground-state exhibits a finite gap, then the corresponding trajectory is dense on a Cantor set with zero measure length. These theorems, when applied to the initial FK model, allows one to prove the existence of the transition by breaking of analyticity for the incommensurate structures when the parameter which describes the discrepancy of the model to the integrable limit varies. Finally, we describe a theorem proving the existence of a devil's staircase for the variation curve of the atomic mean distance versus a chemical potential, for certain properties of the twist map which are generally satisfied.

Aubry, S.

1982-01-01T23:59:59.000Z

55

On a Devil's staircase associated to the joint spectral radii of a family of pairs of matrices  

E-Print Network [OSTI]

The joint spectral radius of a finite set of real d x d matrices is defined to be the maximum possible exponential rate of growth of products of matrices drawn from that set. In previous work with K. G. Hare and J. Theys we showed that for a certain one-parameter family of pairs of matrices, this maximum possible rate of growth is attained along Sturmian sequences with a certain characteristic ratio which depends continuously upon the parameter. In this note we answer some open questions from that paper by showing that the dependence of the ratio function upon the parameter takes the form of a Devil's staircase. We show in particular that this Devil's staircase attains every rational value strictly between 0 and 1 on some interval, and attains irrational values only in a set of Hausdorff dimension zero. This result generalises to include certain one-parameter families considered by other authors. We also give explicit formulas for the preimages of both rational and irrational numbers under the ratio function,...

Morris, Ian D

2011-01-01T23:59:59.000Z

56

MLA Citation Style for a Bibliography/Works Cited Page Zerby, Chuck. Devil's Details: A History of Footnotes. Montpelier: Invisible Cities  

E-Print Network [OSTI]

(full text from subscription database) May, Ernest R. "When Government Writes History." New Republic 23 ________________________________________________________ Book Zerby, Chuck. Devil's Details: A History of Footnotes. Montpelier: Invisible Cities Press, 2002 Article (full text from subscription database) Elliott, Stephen N., Nan Huai, and Andrew T. Roach

Kasman, Alex

57

APA Citation Style for a Bibliography/Works Cited Page Zerby, C. (2002). Devil's details: A history of footnotes. Montpelier, VT: Invisible  

E-Print Network [OSTI]

from subscription database) May, E. R. (2005, May 23). When government writes history. New Republic, 30 ________________________________________________________________ Book Zerby, C. (2002). Devil's details: A history of footnotes. Montpelier, VT: Invisible Cities Press-129. ________________________________________________________________ Journal Article (continuous pagination, full text from subscription database) Elliott, S. N., Huai, N

Kasman, Alex

58

'Devil's Staircase'-Type Phase Transition in NaV{sub 2}O{sub 5} under High Pressure  

SciTech Connect (OSTI)

The 'devil's staircase'-type phase transition in the quarter-filled spin-ladder compound NaV{sub 2}O {sub 5} has been discovered at low temperature and high pressure by synchrotron radiation x-ray diffraction. A large number of transitions are found to successively take place among higher-order commensurate phases with 2a x 2b x zc type superstructures. The observed temperature and pressure dependence of modulation wave number q{sub c}, defined by 1/z, is well reproduced by the axial next nearest neighbor Ising model. The q{sub c} is suggested to reflect atomic displacements presumably coupled with charge ordering in this system.

Ohwada, K.; Fujii, Y.; Takesue, N.; Isobe, M.; Ueda, Y.; Nakao, H.; Wakabayashi, Y.; Murakami, Y.; Ito, K.; Amemiya, Y. (and others)

2001-08-20T23:59:59.000Z

59

Growing smooth interfaces with inhomogeneous, moving external fields: dynamical transitions, devil's staircases and self-assembled ripples  

E-Print Network [OSTI]

We study the steady state structure and dynamics of an interface in a pure Ising system on a square lattice placed in an inhomogeneous external field. The field has a profile with a fixed shape designed to stabilize a flat interface, and is translated with velocity v_e. For small v_e, the interface is stuck to the profile, is macroscopically smooth, and is rippled with a periodicity in general incommensurate with the lattice parameter. For arbitrary orientations of the profile, the local slope of the interface locks in to one of infinitely many rational values (devil's staircase) which most closely approximates the profile. These ``lock-in'' structures and ripples dissappear as v_e increases. For still larger v_e the profile detaches from the interface which is now characterized by standard Kardar-Parisi-Zhang (KPZ) exponents.

Abhishek Chaudhuri; P. A. Sreeram; Surajit Sengupta

2002-07-17T23:59:59.000Z

60

A formula for the fractal dimension d approx. 0.87 of the Cantorian set underlying the Devil's staircase associated with the Circle Map  

E-Print Network [OSTI]

The Cantor set complementary to the Devil's Staircase associated with the Circle Map has a fractal dimension d approximately equal to 0.87, a value that is universal for a wide range of maps, such results being of a numerical character. In this paper we deduce a formula for such dimensional value. The Devil's Staircase associated with the Circle Map is a function that transforms horizontal unit interval I onto vertical I, and is endowed with the Farey-Brocot (F-B) structure in the vertical axis via the rational heights of stability intervals. The underlying Cantor-dust fractal set Omega in the horizontal axis --Omega contained in I, with fractal dimension d(Omega) approx. 0.87-- has a natural covering with segments that also follow the F-B hierarchy: therefore, the staircase associates vertical I (of unit dimension) with horizontal Omega in I (of dimension approx. 0.87), i.e. it selects a certain subset Omega of I, both sets F- B structured, the selected Omega with smaller dimension than that of I. Hence, the...

Losada, M N Piacquadio

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gaslight cupton devils" 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

The Pumping Lemma as a "game with the devil" Pumping Lemma: If L is a regular language then there is an integer m so that any string w in L of length  

E-Print Network [OSTI]

The Pumping Lemma as a "game with the devil" Pumping Lemma: If L is a regular language yeah? I say it is regular. Me: Let's settle this using the Pumping Lemma. If L was regular, the Pumping number to work, any string of length longer than 1000 has to behave as the Pumping Lemma says ­ so I get

Nielsen, Mark J.

62

A formula for the fractal dimension d approx. 0.87 of the Cantorian set underlying the Devil's staircase associated with the Circle Map  

E-Print Network [OSTI]

The Cantor set complementary to the Devil's Staircase associated with the Circle Map has a fractal dimension d approximately equal to 0.87, a value that is universal for a wide range of maps, such results being of a numerical character. In this paper we deduce a formula for such dimensional value. The Devil's Staircase associated with the Circle Map is a function that transforms horizontal unit interval I onto vertical I, and is endowed with the Farey-Brocot (F-B) structure in the vertical axis via the rational heights of stability intervals. The underlying Cantor-dust fractal set Omega in the horizontal axis --Omega contained in I, with fractal dimension d(Omega) approx. 0.87-- has a natural covering with segments that also follow the F-B hierarchy: therefore, the staircase associates vertical I (of unit dimension) with horizontal Omega in I (of dimension approx. 0.87), i.e. it selects a certain subset Omega of I, both sets F- B structured, the selected Omega with smaller dimension than that of I. Hence, the structure of the staircase mirrors the F- B hierarchy. In this paper we consider the subset Omega-F-B of I that concentrates the measure induced by the F-B partition and calculate its Hausdorff dimension, i.e. the entropic or information dimension of the F-B measure, and show that it coincides with d(Omega) approx. 0.87. Hence, this dimensional value stems from the F-B structure, and we draw conclusions and conjectures from this fact. Finally, we calculate the statistical "Euclidean" dimension (based on the ordinary Lebesgue measure) of the F-B partition, and we show that it is the same as d(Omega-F-B), which permits conjecturing on the universality of the dimensional value d approximately equal to 0.87.

M. N. Piacquadio Losada

2007-11-17T23:59:59.000Z

63

Speak of the Devil  

E-Print Network [OSTI]

Dynasty and installed himself as king. He was also an accomplished poet and patron of writers. So why does Cao Cao appear in this idiom? Well, possibly because he was so cunning and had an omnipresent spy network, and it was thought that, even if you had a...

Hacker, Randi

2009-02-18T23:59:59.000Z

64

SPA-LEED Study of the Morphology and Nucleation of a Novel Growth Mode and the ''devil's staircase'' on Pb/Si(111)  

SciTech Connect (OSTI)

This thesis was developed to address the following questions for the Pb/Si(111) system: (1) Is it possible to control the nano-structure growth by changing the initial substrate; (2) is the nucleation theory applicable to the case of the 7-step growth mode; and (3) what phase or phases could be formed between coverage 6/5 ML and 4/3 ML? The first question was answered in chapter 2, different growth results were observed for different initial substrate, suggesting the possibility of controlling nano-structure growth by selecting the initial substrate. The applicability of nucleation theory was determined to be unclear in chapter 3, from the results that the saturation island density does not depend on deposition rate, in contrary to the prediction of nucleation theory. Chapter 4 revealed a novel ''devil's staircase'' in Pb/Si(111) within the coverage range 6/5 ML and 4/3 ML. Low temperature deposition experiments showed high order of self-organization in such a system. Theoretical studies are needed to understand such a low temperature behavior. In general, this thesis provides possibilities of controlling nano-structure growth, which can be possibly an indication for future application. It also raises interesting questions in fundamental researches: a modified theory of nucleation is needed, and a detailed study of low temperature behavior is required. Details of the conclusions in each of the chapters are collected in the following sections.

Wang-Chi Vincent Yeh

2003-12-12T23:59:59.000Z

65

Scale Covariance of Fractal Sets and Measures, A Differential Approach to the Box-Counting Function of a Fractal, with Applications  

E-Print Network [OSTI]

73 The devil’s staircase. . . . . . . . . . . . .defined, dubbed the devil’s staircase, which was rife withcurves such as the “Devil’s Staircase”, and other sets with

Quinn, John Roosevelt

2013-01-01T23:59:59.000Z

66

Devil's Canyon Geothermal Project | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump to:52c8ff988c1Dering Harbor, New York:Supercritical CO2

67

Commensurability, chaos, and the devil's staircase  

SciTech Connect (OSTI)

These lectures deal with the effects of the discrete lattice on modulated structures in solid state physics. The modulated structure could be a periodic lattice distortion, a sinusoidal or helical magnetic structure, staging of alkali metals in graphite intercalation compounds, polytypism in crystal formation, or some other periodic arrangement. Models discussed include the 1d Ising model with long range antiferromagnetic interactions in a magnetic field, the 3d Ising model with competing interactions, and the discrete phi/sup 4/ model. (WHK)

Bak, P.; Jensen, M.H.

1982-01-01T23:59:59.000Z

68

Max Tech and Beyond: Maximizing Appliance and Equipment Efficiency by Design  

E-Print Network [OSTI]

Torchieres Comm. Storage Water Heaters (elec. ) Res. GasLights Comm. Storage Water Heaters (gas) Air CompressorsCompressors Comm. Storage Water Heaters (gas) Street Lights

Desroches, Louis-Benoit

2012-01-01T23:59:59.000Z

69

Geology and Groundwater Investigation Many Devils Wash, Shiprock Site, New  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject: Guidance for naturalGeneralEnergy GeologicMexico |

70

Devils, Angels, and Robots: Tempting Destructive Users in Social Media  

E-Print Network [OSTI]

and advertising are threatened by spammers, content polluters, and malware disseminators. In an effort to preserve

Caverlee, James

71

Exact area devil's staircase for the sawtooth map  

SciTech Connect (OSTI)

The sawtooth mapping is a family of uniformly hyperbolic, piecewise linear, area-preserving maps on the cylinder. We construct the resonances, cantori, and turnstiles of this family and derive exact formulas for the resonance areas and the escaping fluxes. These are of prime interst for an understanding of the deterministic transport which occurs the stochastic regime. The resonances are shown to fill the full measure of phase space. 9 refs., 4 figs.

Chen, Q.; Meiss, J.D.

1988-04-01T23:59:59.000Z

72

MATLAB probability demos Table of Contents  

E-Print Network [OSTI]

..............................................................................................6 Cantor's devil's staircase as a cumulative distribution function

Doyle, Peter

73

Network-constrained models of liberalized electricity markets: the devil is in the details  

E-Print Network [OSTI]

Numerical models for electricity markets are frequently used to inform and support decisions. How robust are the results? Three research groups used the same, realistic data set for generators, demand and transmission network as input...

Barquin, J; Boots, M G; Ehrenmann, A; Hobbs, Benjamin F; Neuhoff, Karsten; Rijkers, F A M

2004-06-16T23:59:59.000Z

74

Pelagic MPAs: The devil is in the details David M. Kaplan*1  

E-Print Network [OSTI]

tropical tuna species, such as skipjack Katsuwonus pelamis [5], do not exhibit clear spawning or feeding

Paris-Sud XI, Université de

75

The devil's shoestring, Tephrosia virginiana (L.) pers., as a domestic source of rotenone and rotenoids  

E-Print Network [OSTI]

Previously 322-1 3.63 10.43 322-2 3.62 9.42 322-3 3.69 10.22 419-1 2.46 7.50 419-2 2.41 7.65 434-1 2.80 7.79 434-3 3.32 8.85 434-4 2.55 7.32 434-5 2.69 7.23 434-6 3.16 8.79 434-8 2.59 8.39 434-9 4.13 11.81 434-10 3.81 12.03 435-1 3.01 10.06 435....23 11.37434-8 2.80 7.88 434-9 3.39 9.12 434?10 3.72 10.61 435-1 3.58 10.21 435-2 3.68 13.37784-1 784-2 3.19 2.68 10.99 10.17 Mean 3.27 3.24 9.79 9.42 from plants in their second and third years of growth, respectively, with the roots being dug...

Little, V. A.

1943-01-01T23:59:59.000Z

76

On the Amplitude of External Perurbation and Chaos via Devil's Staircasein Muthuswamy-Chua System  

E-Print Network [OSTI]

We recently analyzed the voltage of the memristic circuit proposed by Muthuswamy and Chua by adding an external sinusoidal oscillation $\\gamma\\omega \\cos\\omega t$ to the ${\\dot y}(t)\\simeq {\\dot i_L}(t)$, when the ${\\dot x}(t)\\simeq {\\dot v_C}(t)$ is given by $y(t)/C$. When $f_soscillation for $C=1$ and $C=1.2$

Sadataka Furui; Tomoyuki Takano

2014-07-22T23:59:59.000Z

77

"The Devil You Know Knows Best" How Online Recommendations Can Benefit From Social Networking  

E-Print Network [OSTI]

at the same time the emerging web 2.0 [14] has created prosuming users. Recommender systems (RS) have been

Sasse, Angela

78

Fractal dimension and self-similarity of the devil's staircase in a Josephson-junction simulator  

SciTech Connect (OSTI)

A Comment on the Letter by M. Hogh Jensen, Per Bak, and Tomas Bohr, Phys. Rev. Lett. 50, 1637 (1983).

Yeh, W.J.; He, D.; Kao, Y.

1984-02-06T23:59:59.000Z

79

Short Communication Orang-utan nest surveys: the devil is in the details  

E-Print Network [OSTI]

and dung decay rates used to estimate great ape and elephant population densities in Africa (Nchanji and Erik Meijaard Abstract Nest surveys are widely employed to assess the population density of orang been widely used as proxies for population density (van Schaik et al., 1995; Buij et al., 2003

80

Effects of an introduced predator on the native fish assemblage in the Devils River, Texas  

E-Print Network [OSTI]

in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved as to style and content by: Kirk O. Winemiller (Chair of Committee) (Fary Garrett (Member) Frances elwick (Member) Merrill Sweet (Member) Robert D. Brown... of attaining my Master's degree. I would also like to recognize the efforts of the rest of my advisory committee, Dr. Frances Gelwick, Dr. Gary Garrett, and Dr. Merrill Sweet. Each member was invaluable by providing advice and answering numerous questions...

Robertson, Michael Shard

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gaslight cupton devils" 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

Microwave-induced ''Devil's Staircase'' structure and ''Chaotic'' behavior in current-fed Josephson junctions  

SciTech Connect (OSTI)

We have obtained the various types of I-V characteristics measured experimentally and in analog simulations, by merely changing the junction and the microwave parameters within the same resistively shunted junction model with purely sinusoidal current-phase relation. It was found that the subharmonic steps do exist in the limit b/sub c/..-->..0, though they can have finite rounding without thermal noise. The statistical properties of the ''chaotic'' solutions wer e discussed and their effective temperature was defined and calculated.

Ben-Jacob, E.; Braiman, Y.; Shainsky, R.; Imry, Y.

1981-05-15T23:59:59.000Z

82

A devil's staircase from rotations and irrationality measures for Liouville numbers  

E-Print Network [OSTI]

From Sturmian and Christoffel words we derive a strictly increasing function $\\Delta:[0,\\infty)\\to\\mathbb{R}$. This function is continuous at every irrational point, while at rational points, left-continuous but not right-continuous. Moreover, it assumes algebraic integers at rationals, and transcendental numbers at irrationals. We also see that the differentiation of $\\Delta$ distinguishes some irrationality measures of real numbers.

Kwon, Doyong

2007-01-01T23:59:59.000Z

83

Strain versus stress in a model granular material: a Devil's staircase  

E-Print Network [OSTI]

The series of equilibrium states reached by disordered packings of rigid, frictionless discs in two dimensions, under gradually varying stress, are studied by numerical simulations. Statistical properties of trajectories in configuration space are found to be independent of specific assumptions ruling granular dynamics, and determined by geometry only. A monotonic increase in some macroscopic loading parameter causes a discrete sequence of rearrangements. For a biaxial compression, we show that, due to the statistical importance of such events of large magnitudes, the dependence of the resulting strain on stress direction is a Levy flight in the thermodynamic limit.

Gael Combe; Jean-Noel Roux

2000-04-05T23:59:59.000Z

84

QUANTUM SIMULATIONS OF THE ISING MODEL WITH TRAPPED IONS: DEVIL'S STAIRCASE AND ARBITRARY LATTICE PROPOSAL .  

E-Print Network [OSTI]

??A collection of trapped atomic ions represents one of the most attractive platforms for the quantum simulation of interacting spin networks and quantum magnetism. Spin-dependent… (more)

Korenblit, Simcha

2013-01-01T23:59:59.000Z

85

HollowSpace stove,fridge  

E-Print Network [OSTI]

Cell ice, John VaultRoom rod Vault SideCorr SafeRoom (to EastCell) safe BlueGrotto DevilTask Devil Cavern

Rosenthal, Jeffrey S.

86

E-Print Network 3.0 - amaranth amaranthus hypochondriacus Sample...  

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

to Roundup Ultra for season-long Palmer amaranth and devil's-claw control without cultivation. Effective... early-season Palmer amaranth and devil's-claw control was...

87

Thioulouse, J., J. Devillers, D. Chessel, and Y. Auda. 1991. Graphical techniques for multidimensional data analysis. Pages 153-205 in J. Devillers and W. Karcher, editors. Applied Multivariate Analysis in SAR and Environmental Studies. Kluwer Academic  

E-Print Network [OSTI]

Analysis in SAR and Environmental Studies. Kluwer Academic Publishers. http://pbil.univ-lyon1.fr/R/articles Analysis in SAR and Environmental Studies. Kluwer Academic Publishers. http://pbil.univ-lyon1.fr/R/articles Analysis in SAR and Environmental Studies. Kluwer Academic Publishers. http://pbil.univ-lyon1.fr/R/articles

Thioulouse, Jean

88

A review of "The Devil in Disguise. Deception, Delusion, and Fanaticism in the Early English Enlightenment" by Mark Knights  

E-Print Network [OSTI]

by #3;#25;#31;#18;#27; #26;#29;#26;#25;#27; #7;#30;#26;#19;#30;#31;, #29;#27;#18;#17;#30;#31;#26;#18;#19;#16; #20;#7; #4;#25; #30;#26;, #19;#31;#18;#27;#18;#19;#16; #26;#25;#18;#27;#19; #11;#25;#17;#18;#11;. Mark Knights in his extraordinary work..., the ?discourses of ?popery? and ?antipopery? . . . had a variety of unpredictable valences? (178)?valences so removed from their original religious meanings as to make dissent and popery politically equivalent, and to make Cromwell?s ?Goos-quill Champion? a...

Fester, Karin Susan

2012-01-01T23:59:59.000Z

89

Did the devil make them do it?: an examination of the etiology of satanism among juvenile delinquents  

E-Print Network [OSTI]

learning theory has fundamental conceptual overlaps with other mainstream delinquency explanations such as strain theory and social control or bonding theory (Akers 1989; see also: Elliott, Huizinga, and Ageton 1985; Pearson and Weiner 1985; Simmons...

Damphousse, Kelly Richard

1991-01-01T23:59:59.000Z

90

The Chronology for the 18O Record from Devils Hole, Nevada, Extended Into the Mid-Holocene  

E-Print Network [OSTI]

[altitude 3,630 meters (m)], approximately 80 kilometers to the east of the cavern. The walls of the open

91

The Sodium Content of Your Food.  

E-Print Network [OSTI]

..................... ........................... Chopped ham Deviled ham ............................ Ham spread ..................... Kielbasa ................................ ............................. Knockwurst Lebanon bologna ................ Liver cheese...

Anonymous,

1982-01-01T23:59:59.000Z

92

This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research  

E-Print Network [OSTI]

complex, fractal solution sets, such as Devil's staircases and ``fractal sunbursts.'' All known solutions

Ghil, Michael

93

Multiple phase transitions found in a magnetic Heusler alloy and thermodynamics of their magnetic internal energy  

E-Print Network [OSTI]

a devil's staircase as it repeatedly achieves the same final magnetic state. Using experimental values

Chopra, Harsh Deep

94

Physica D 216 (2006) viiix www.elsevier.com/locate/physd  

E-Print Network [OSTI]

), and the dependence of physical quantities on parameters is typically a "devil's staircase". In addition

Dauxois, Thierry

95

A function from Diophantine approximations Some remarkable properties of a function defined from consideration of Diophantine approximations  

E-Print Network [OSTI]

remarkable properties similar to those possessed by what physicists call the devil's staircase associated

96

Kinetic lattice gas model of collective diffusion in a one-dimensional system with long-range repulsive interactions  

E-Print Network [OSTI]

of these observations recent results on efficient low temperature self-reorganization through devil's staircase phases

Zaluska-Kotur, Magdalena

97

Eur. Phys. J. D 38, 375379 (2006) DOI: 10.1140/epjd/e2006-00011-9 THE EUROPEAN  

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of Planck constant the classical devil's staircase remains robust with respect to quantum fluctuations while

Shepelyansky, Dima

98

Amorphous structures and incommensurate phases J. C. S. Levy  

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comparison of solutions with the introduction of a 3-dimensional devil's staircase for the characterization

Paris-Sud XI, Université de

99

Deterministic Ratchets, Circle Maps, and Current Reversals R. Salgado-Garcia,1,2  

E-Print Network [OSTI]

- rameters such as ``current quantization,'' current reversal, and devil's staircase phenomena [6,7]. Though

Aldana, Maximino

100

LE JOURNAL DE PHYSIQUE Exact solution of the 2D brickwork Ising model  

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approximation, which predicts the existence of a devil's staircase behaviour for the periodicity versus

Paris-Sud XI, Université de

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101

Volume 129, number 4 PHYSICSLETTERS A 23 May 1988 NEAR-CRITICAL BEHAVIOR FOR ONE-PARAMETER FAMILIES OF CIRCLE MAPS  

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illustrate the behavior we wish to under- control parameter we obtain a devil's staircase (fig. 0375

Barkley, Dwight

102

The Theory of Random Dynamical Systems and its Applications Tsir elson(1975) Yor(1992)  

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, a complex analogue of a devil's staircase function appears ([H. Sumi: Random complex dynamics and semigroups

Sumi, Hiroki

103

Front propagation and mode-locking in Coupled Map Lattices  

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of the travelling interface has a Devil's staircase (a fractal staircase) dependence on the coupling parameter. The Devil's staircase is mode-locked to rational plateaus and may be fully described via Farey sequences

Carretero, Ricardo

104

1999 Macmillan Magazines Ltd letters to nature  

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. Bak, P. & von Boehm, J. Ising model with solitons, phasons and `the devil's staircase'. Phys. Rev. B. Phys. Rev. B 56, 5781±5785 (1997). 13. Aubry, S. Devil's staircase and order without periodicity

Chen, Shaw H.

105

Quantized Spiral Tip Motion in Excitable Systems with Periodic Heterogeneities Brent T. Ginn and Oliver Steinbock*  

E-Print Network [OSTI]

and frequencies that exhibit a devil's staircase. The plateaus of the staircase correspond to pinned or complex length. These quantized orbits follow a devil's staircase [10] as the refractory period of the sys- tem

Steinbock, Oliver

106

Statistically Lockedin Transport Through Periodic Potential Landscapes Ajay Gopinathan # and David G. Grier +  

E-Print Network [OSTI]

landscapes are pre­ dicted to follow a Devil's staircase hierarchy of commensurate trajectories depending to the driving force, the spheres were observed to trace out a Devil's staircase hierarchy of commensurate

Grier, David

107

Statistically Locked-in Transport Through Periodic Potential Landscapes Ajay Gopinathan  

E-Print Network [OSTI]

are pre- dicted to follow a Devil's staircase hierarchy of commensurate trajectories depending to the driving force, the spheres were observed to trace out a Devil's staircase hierarchy of commensurate

Grier, David

108

Research Report Cortical pyramidal cells as non-linear oscillators  

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follows a complex "devil's staircase" phenomena, where locked modes are interleaved with irregular firing Elsevier B.V. All rights reserved. Keywords: Bifurcation theory Devil's staircase Endogenous oscillator 1

Brumberg, Joshua

109

VOLUME 85, NUMBER 16 P H Y S I C A L R E V I E W L E T T E R S 16 OCTOBER 2000 Validity of Threshold-Crossing Analysis of Symbolic Dynamics from Chaotic Time Series  

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to a severe misrepresentation of the dynamical system. The measured topological entropy is a Devil's staircase of d to be devil's staircase-like, but surprisingly nonmono- tone. We establish our results

Bollt, Erik

110

26.457 The Circle Map : 2 The two approaches of the handouts on the circle map illustrate a deep cultural rift between the approaches of the  

E-Print Network [OSTI]

, but elaborating the description of the Devil's staircase Cantor function result. Consider any differentiable) The devil's staircase for the standard circle map. We now finally come "full circle and re

King, Chris

111

J. Phvs. II Franc-e 4 (1994) 1209-1219 JULY 1994, PAGE 1209 Classification  

E-Print Network [OSTI]

.30 64.60 Fluctuation forces and the Devil's staircase of ferroelectric smectic C *'s. R. Bruinsma and J, whose stability intervals form a so-called complete « Devil's Staircase ». A very similar sequence

Paris-Sud XI, Université de

112

Physica D 154 (2001) 259286 What symbolic dynamics do we get with a misplaced partition?  

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-uniqueness. Interestingly, we find topological entropy as a function of misplacement to be devil's staircase; 95.10.Fh Keywords: Symbol dynamics; Topological entropy; Kneading theory; Devil's staircase 1

Lai, Ying-Cheng

113

Equilibrium shape of crystals H. J. Schulz  

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temperatures, leadingto a devil's staircase at T = 0. Formulae for the width and roughening temperature ofthe high index facets are given. Ifthere is attraction between steps, the devil's staircase disappears

Paris-Sud XI, Université de

114

Ground states of lattice gases with ``almost'' convex repulsive interactions  

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the feature known as the complete devil's staircase. KEY WORDS: Classical lattice­gas models; ground states; nonconvex interactions; most homogeneous configurations; devil's staircase. \\Lambda Pl. Maksa Borna 9, 50

115

Journal of Statistical Physics, Vol. 98, Nos. 34, 2000 Ground States of Lattice Gases with ``Almost''  

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, the ground state exhibits the feature known as the complete devil's staircase. KEY WORDS: Classical lattice-gas models; ground states; nonconvex inter- actions; most homogeneous configurations; devil's staircase. 589

Miekisz, Jacek

116

Solving Problems with GCMs: General Circulation Models and Their Role in the Climate Modeling Hierarchy  

E-Print Network [OSTI]

­Southern Oscillation, from the Devil's Staircase to prediction 16 A. ENSO's regularity and irregularity 16 B. The Devil's Staircase across the modeling hierarchy 18 C. Regularity and prediction 22 IV. Interdecadal oscillations

Robertson, Andrew W.

117

Short communication Dynamics of a model of two delay-coupled relaxation oscillators  

E-Print Network [OSTI]

: Coupled oscillators Devil's Staircase Delay-differential equations a b s t r a c t This paper investigates by regions of complicated dynamics, reminiscent of the Devil's Staircase. Stability of motions in the in

Rand, Richard H.

118

Journal of Statistical Physics, Vol. 90, Nos. 1/2, 1998 An Ultimate Frustration in Classical  

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-state configurations of infinite-range, convex, repulsive interactions in models with devil's staircases. Our models; devil's staircase. 285 0022-4715/98/0100-0285$15.00/0 © 1998 Plenum Publishing Corporation #12

Miekisz, Jacek

119

Self assembled nano-structures of Pb on Si(111) studied by SPA-LEED: Quantum Size Effect driven Pb islands and the "Devil's Staircase".  

E-Print Network [OSTI]

??An important goal in present day surface science is to grow uniform sized self-assembled nanostructures. One system which has displayed a number of interesting surface… (more)

Yakes, Michael Keith

2006-01-01T23:59:59.000Z

120

SPA-LEED study of the morphology and nucleation of a novel growth mode and the "devil's staircase" on Pb/Si(111).  

E-Print Network [OSTI]

??In this thesis we describe two intriguing and unexpected discoveries we made in the Pb/Si(111). A novel growth mode was discovered on Pb thin film… (more)

Yeh, Wang-Chi Vincent

2003-01-01T23:59:59.000Z

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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.


121

Conversation with Bill McKibben 21 December 2010  

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fossil fuel subsidies in place, allowing fossil fuel companies to call the tune--and the devil with young

Hansen, James E.

122

The renewables portfolio standard in Texas: An early assessment  

E-Print Network [OSTI]

The Devil is in the Detail. ” Windpower Monthly, 13 (11): 32Policy. Presentation to Windpower 2001. Washington, D.C. :

Wiser, Ryan H.; Langniss, Ole

2001-01-01T23:59:59.000Z

123

Geophysical and Astrophysical Fluid Dynamics Vol. 102, No. 3, June 2008, 327329  

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, such as the Devil's staircase, used later in Chapter 7 on the El Nin~ o/Southern Oscillation (ENSO). Greater

Ghil, Michael

124

Math. Nachr. 280, No. 12, 140 151 (2007) / DOI 10.1002/mana.200410470 Non-differentiability points of Cantor functions  

E-Print Network [OSTI]

function of the probability measure µ, also called Cantor function or a self-affine "devil's staircase

Li, Wenxia

125

MAT 1000 / 457 : Real Analysis I Assignment 5, due October 16, 2013  

E-Print Network [OSTI]

Lebesgue measurability; Folland 2.9) Let f be the Cantor-Lebesgue function (the `devil's staircase') from

Burchard, Almut

126

Two-dimensional commensurate soliton structures G. V. Uimin andV. L. Pokrovsky  

E-Print Network [OSTI]

as a branching sequence (so-called « complete devil's staircase »). In the leading nearest-neighbour interaction

Boyer, Edmond

127

September 2010 EPL, 91 (2010) 50002 www.epljournal.org  

E-Print Network [OSTI]

the spiral tip traces complex periodic orbits and the U-dependence of the period follows a devil's staircase

Steinbock, Oliver

128

EPR in Mn2+ doped betaine calcium chloride dihydrate single crystals J. L. Ribeiro (1), J. C. Fayet (2), J. Emery (2), M. Pdzeril (2), J. Albers (3), A. Klpperpieper (3),  

E-Print Network [OSTI]

devil's staircase. In this paper we report a study of Electronic Paramagnetic Resonance of Mn2 + doped

Paris-Sud XI, Université de

129

Nonlin. Processes Geophys., 13, 2339, 2006 www.nonlin-processes-geophys.net/13/23/2006/  

E-Print Network [OSTI]

resonance is found. In the periodic regime, Arnol'd tongues, frequency locking and a Devil's staircase

Paris-Sud XI, Université de

130

Physica D 39 (1989) 365-392 North-Holland. Amsterdam  

E-Print Network [OSTI]

; the derivative of this function describes the scaling structure of all small gaps in the devil's staircase

Ă?stlund, Stellan

131

Dynamics of coding in communicating with chaos Erik Bollt1  

E-Print Network [OSTI]

a nonincreasing, devil's-staircase-like function of the noise-resisting strength. There is usually a range

Lai, Ying-Cheng

132

February 18, 2003 Charged Lattice Gas with a Neutralizing Background  

E-Print Network [OSTI]

-ranged interactions, we use a devil's staircase formalism to obtain the dependence of the energy of the equilibrium

Thorpe, Michael

133

MAT 1000 / 457 : Real Analysis I Assignment 4, due October 10, 2012  

E-Print Network [OSTI]

-Cantelli.) 4. (Folland 2.9) Let f be the Cantor-Lebesgue function (the `devil's staircase') from Section 1

Burchard, Almut

134

A LEBESGUE MEASURABLE SET THAT IS NOT BOREL SAM SCHIAVONE  

E-Print Network [OSTI]

) Ternary Expansions (2) The Cantor Set (3) The Cantor Ternary Function (a.k.a. The Devil's Staircase

Sands, Jonathan W.

135

Europhys. Lett., 63 (4), pp. 512518 (2003) EUROPHYSICS LETTERS 15 August 2003  

E-Print Network [OSTI]

. The asymptotic activity a (top- plings density) shows, as a function of energy density , a devil's staircase

Cecconi, Fabio

136

VOLUME 83, NUMBER 18 P H Y S I C A L R E V I E W L E T T E R S 1 NOVEMBER 1999 Continued Fractions Hierarchy of Rotation Numbers in Planar Dynamics  

E-Print Network [OSTI]

of the attractor at the same asymptotic rate [17]. The devil's staircase structure of this graph reflects the order

Yorke, James

137

Temperature gradients are supported by cantori in chaotic fields S.R. Hudson  

E-Print Network [OSTI]

devil's staircase. [1] T. E. Evans, R. A. Moyer, P. R. Thomas, et al., Phys. Rev. Lett. 92, 235003 (2004

Hudson, Stuart

138

Fractional Synchronization of Spin-Torque Nano-Oscillators Sergei Urazhdin and Phillip Tabor  

E-Print Network [OSTI]

regimes (Devil's staircase) in a spin-torque nano-oscillator driven by a microwave field. These regimes

Weeks, Eric R.

139

U.S. Department of the Interior U.S. Geological Survey  

E-Print Network [OSTI]

Survey--published in diverse outlets--that focuses on the subaqueous cavern Devils Hole in Nevada. What is Devils Hole? Devils Hole is a subaqueous cavern in south-central Nevada within a geographically detached unit of Death Valley National Park (fig. 1). The cavern is tectonic in origin and has developed

140

Temperature-pressure phase diagram of deuterated tetramethylammonium tetrachlorozincate  

E-Print Network [OSTI]

in the range 0 to 1.8 kbar and 2014 5 to 36 °C. This diagram is a nice illustration of the devil's staircase.4 and one with k 0.4. There the devil's staircase is incomplete, hysteresis appears at the lock-in transitions. At low P and T the devil's staircase is complete and behaviour irreversible

Boyer, Edmond

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


141

Nonlinear Analysis: Real World Applications 11 (2010) 33443362 Contents lists available at ScienceDirect  

E-Print Network [OSTI]

frequency versus the driving frequency, one obtains a so-called devil's staircase, i.e. a self of the Arnol'd tongues, and the devil's staircase structure have been proved rigorously in some mathematical Bifurcation theory Subharmonic bifurcation Periodic solutions Arnol'd tongues Frequency locking Devil

Bartuccelli, Michele

142

doi: 10.1098/rspa.2008.0307 , 283-3064652009Proc. R. Soc. A  

E-Print Network [OSTI]

: frequency locking; Arnold tongues; devil's staircase; injection-locked frequency divider 1. Introduction divider is studied experimentally, and the devil's staircase structure of the lockings is measured: when of explaining analytically the appearance of the plateaux of the devil's staircase. We aim to understand why

Bartuccelli, Michele

143

2 ISSP Activity Report 2012 Research Highlights  

E-Print Network [OSTI]

2 ISSP Activity Report 2012 Research Highlights Incomplete Devil's Staircase in the Magnetization that the plateau sequence can be inter- preted as a "devil's staircase", which is an infinite sequence, indicating that what is observed here is an example of "incomplete devil's staircase", in which the infinite

Katsumoto, Shingo

144

Three oscillator model of the heartbeat generator Meghan Suchorsky *, Richard Rand  

E-Print Network [OSTI]

: 05.45.Xt 87.19.ug Keywords: Phase-only oscillators Phase-locking Devil's staircase Sinoatrial node of bifurcations called the ``devil's staircase". We use our system to derive a 1D discontinuous map which exhibits the devil's staircase, and we analyze its dynamics. Ă? 2008 Elsevier B.V. All rights reserved. 1

Rand, Richard H.

145

d tongues for a resonant injection-locked frequency divider: analytical and numerical results  

E-Print Network [OSTI]

for the widths of the tongues, which correspond to the plateaux of the devil's staircase picture. The results to the output frequency versus the driving frequency, one obtains a so-called devil's staircase, i.e. a self of the unperturbed system, then is fixed such that = . Therefore the plot has a devil's staircase structure [15

146

Volume 114A, number 8,9 PHYSICSLETTERS 17 March 1986 MODE LOCKING, THE BELOUSOV-ZHABOTINSKY REACTION,  

E-Print Network [OSTI]

devil's staircase observed by Maselko and Swinney as well as chaos and other experimentally observed periodic sequences. An interesting property of the devil's staircase observed here is that it remains complete through a wide range of parameters, in contrast to the devil's staircases observed in critical

147

Idea and image: shades of light and dark in selected Poe tales  

E-Print Network [OSTI]

, and Enclosure in Poe's 'Ligeia' and 'Morella. '" The idea of enclosure could be tied to darkness, but Engel does not explore darkness as a concept in either of his articles. In "The Crowd as No Man's Land: Gas-Light and Poe's Symbolist Effects, " J. G. Keogh... IDEA AND IMAGE: SHADES OF LIGHT AND DARK IN SELECTED POE TALES A Thesis by AMARYLLIS RUTH STEPHENSON Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER...

Stephenson, Amaryllis Ruth

1989-01-01T23:59:59.000Z

148

Structural interpretation of Coso Geothermal field, Inyo County...  

Open Energy Info (EERE)

and fracturing associated with dome emplacement, and localized zones of extensive hydraulic fracturing. Wells in the Devil's Kitchen area have encountered fluids in excess of...

149

Random complex dynamics and semigroups of holomorphic maps  

E-Print Network [OSTI]

of polynomials. Under certain conditions these functions T are complex analogues of the devil's staircase, Markov process, rational semigroups, polynomial semigroups, Julia sets, fractal geometry, cooperation

Sumi, Hiroki

150

J. Phys. II Yance 7 (1997) 1817-1828 DECEMBER 1997, PAGE 1817 Optical Properties and Phenomenological Theory of Ferri-Ferri  

E-Print Network [OSTI]

to the previously presented devil's staircase [6, 9j. In [8,10] it was proposed to generalize the two-layer model

Boyer, Edmond

151

Available at: http://publications.ictp.it IC/2010/058 United Nations Educational, Scientific and Cultural Organization  

E-Print Network [OSTI]

. The function H : t Trans(Ft) is continuous and non decreasing. The graph of H is like a devil's staircase

152

The Institute for Solid State Physics The University of Tokyo  

E-Print Network [OSTI]

Devil's Staircase in the Magnetization Curve of SrCu2(BO3)2 Takigawa and Y. Ueda Groups Magnetization

Katsumoto, Shingo

153

Quantum Catalysis of Magnetic Phase Transitions in a Quantum Simulator P. Richerme,1  

E-Print Network [OSTI]

a transverse magnetic field as a quantum catalyst to observe the first steps of the complete fractal devil's staircase, which emerges in the thermodynamic limit and can be mapped to a large number of many on to a number of energy minimization problems [25,26], and shows the first steps of the complete devil

Richerme, Phil

154

J. Phys. A: Math. Gen. 33 (2000) 18411855. Printed in the UK PII: S0305-4470(00)08603-0 Random field Ising chains with synchronous dynamics  

E-Print Network [OSTI]

are asymptotically identical. We thus recover the familiar devil's staircase form for the integrated density of local-analytic object known as the devil's staircase. The support of the density P(k) is now known to be a zero]. Phase transitions in the usual thermodynamic sense are absent, but the transition of the fractal

Coolen, ACC "Ton"

155

UNCORRECTEDPROOF Physica D 2801 (2001) 125  

E-Print Network [OSTI]

-- exhibit Devil's staircases, a signature of the quasi-periodic (QP) route to chaos. Our BDE model thus 25 26 27 28 Keywords: Cellular automata; Delay equations; Devil's staircase; El Niño; Frequency-similar "fractal sunburst" pattern emerges in phase-parameter space. This pattern provides a distinct and more

Ghil, Michael

156

Title of dissertation: QUANTUM SIMULATIONS OF THE ISING MODEL WITH TRAPPED IONS  

E-Print Network [OSTI]

are intractable. #12;QUANTUM SIMULATIONS OF THE ISING MODEL WITH TRAPPED IONS: DEVIL'S STAIRCASE AND ARBITRARYABSTRACT Title of dissertation: QUANTUM SIMULATIONS OF THE ISING MODEL WITH TRAPPED IONS: DEVIL'S STAIRCASE AND ARBITRARY LATTICE PROPOSAL Simcha Korenblit, Doctor of Philosophy 2013 Dissertation directed

Monroe, Christopher

157

Mixed-mode oscillations in chemical systems Valery Petrov  

E-Print Network [OSTI]

, leading to correspondingly more complete Devil's staircases. An ex- actly comparable scenario is shown. The relative extents of the mixed-mode and nonmixed- mode forms are summarized in terms of a Devil's staircase. The completeness of the staircase as a second parameter is varied is discussed. The mechanisms by which the system

Showalter, Kenneth

158

J. Phys. I France 6 (1996) 231-236 FEBRUARY 1996, PAGE 231 Short Communication  

E-Print Network [OSTI]

)2 is a dielectric compound with a phase diagram ~vhich bas been described as an incomplete Devil's staircase after facto a true mcommensurate phase), the "complete Devil's staircase" regime has two distinctive features of the "complete DeviI's staircase" regime. Résumé. Nous avons étudié par diffusion élastique de neutrons la

Paris-Sud XI, Université de

159

Frequency locking in an injection-locked frequency divider Michele V. Bartuccelli  

E-Print Network [OSTI]

experimentally, and the devil's staircase structure of the lockings is measured: when the ratio of the frequency of the driving frequency. We provide explicit formulae for the width of the plateaux appearing in the devil's staircase structure of the lockings, and in particular show that the largest plateaux correspond to even

Gentile, Guido

160

Geometry and dynamics of numbers under finite resolution  

E-Print Network [OSTI]

exponent of ! versus !. We obtain a classical object in dynamical system's theory : a devil's staircase. We intro­ duce a natural hierarchy of locking resonance zones, following previous works on dynamical devil's staircase [6]. We then try to see how these locking res­ onance zones are classified. We then see, that when

Note: This page contains sample records for the topic "gaslight cupton devils" 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

Math. Proc. Camb. Phil. Soc. (2002), 133, 345 c 2002 Cambridge Philosophical Society DOI: 10.1017/S030500410200590X Printed in the United Kingdom  

E-Print Network [OSTI]

030500410200590X Printed in the United Kingdom 345 Non-differentiability of devil's staircases and dimensions probability measure on C. Consider the distribution function which is often referred to as the Devil's staircase (for a = 1 3 ): F(x) = µ([0, x]), x [0, 1]. It is easy to check that the derivative of F

Li, Wenxia

162

Oberwolfach OWP 2007 -13  

E-Print Network [OSTI]

(note, F is an `ordinary devil's staircase'). That is, for R+ we consider the set := { L : D F-trivial applications of the thermodynamic formalism to the theory of distribution functions of Gibbs measures (devil's staircases) supported on limit sets of finitely generated conformal iterated function systems in R

163

Statistically Locked-in Transport Through Periodic Potential Landscapes Ajay Gopinathan and David G. Grier y  

E-Print Network [OSTI]

energy landscapes are pre- dicted to follow a Devil's staircase hierarchy of commensurate trajectories's ori- entation with respect to the driving force, the spheres were observed to trace out a Devil's staircase hierarchy of commensurate directions through the array, with par- ticular directions being

Grier, David

164

Frequency locking in the injection-locked frequency divider Michele V. Bartuccelli  

E-Print Network [OSTI]

- tally, and the devil's staircase structure of the lockings is measured: when the ratio of the frequency of the driving frequency. We provide explicit formulae for the width of the plateaux appearing in the devil's staircase structure of the lockings, and in particular show that the largest plateaux correspond to even

Roma "La Sapienza", UniversitĂ  di

165

Scientists and engineers outdid themselves in 2005 in mounting exploratory expeditions  

E-Print Network [OSTI]

, but the devil is in the details, none of which have been worked out. Meanwhile, Iran's new hard-line government-profile scientists to the ERC's scientific council, which will divvy up the first grants. But political wrangling

166

RECENT ADVANCES IN MODELLING DUCTILE RUPTURE A.A. Benzerga1  

E-Print Network [OSTI]

in cast duplex stainless steels (Devillers-Guerville et al. [11]). In these materials cavities. Similar results were obtained in a plain carbon steel (A 48) in which the distribution of MnS inclusions

Paris-Sud XI, Université de

167

Oscillations of a Magnetized Plasma in a Waveguide of Complicated Shape  

SciTech Connect (OSTI)

Potential hybrid oscillations in a resonator of arbitrary shape are investigated theoretically. It is shown that, for a periodic waveguide, the frequency dependence of the wavenumber is represented by a fractal curve of the 'devil's staircase' type.

Ignatov, A. M. [Russian Academy of Sciences, Institute of General Physics (Russian Federation)] [Russian Academy of Sciences, Institute of General Physics (Russian Federation)

2002-07-15T23:59:59.000Z

168

The space of 2-generator postcritically bounded polynomial semigroups and random complex dynamics  

E-Print Network [OSTI]

the associated functions which give the probability of tending to (complex analogues of the devil's staircase iteration, randomness-induced phenomena, Julia sets, fractal geometry, (backward) iterated function systems

Sumi, Hiroki

169

Nonlin. Processes Geophys., 14, 425434, 2007 www.nonlin-processes-geophys.net/14/425/2007/  

E-Print Network [OSTI]

sections. The well- known Devil's staircase multifractal was also used to illus- trate wavelet be quantified using fractal geometry (Pachepsky et al., 2000). Previous work done by some of the authors

Paris-Sud XI, Université de

170

Physica D 142 (2000) 254290 Data-adaptive wavelets and multi-scale singular-spectrum analysis  

E-Print Network [OSTI]

shift between 5 and 3 years supports the Devil's staircase scenario for the ENSO phenomenon (preliminary's correlation matrix. We present several examples of application to synthetic signals with fractal or power

Ghil, Michael

171

PUBLISHED ONLINE: 8 JULY 2012 | DOI: 10.1038/NPHYS2362 Commensurability and chaos in magnetic  

E-Print Network [OSTI]

that commensurate phase-locked and incommensurate chaotic states are possible, resulting in Devil's staircases of resonant excitation, for example, by driving the system with alternating magnetic fields3,4 or currents5

Loss, Daniel

172

National Aeronautics and Space Administration www.nasa.gov  

E-Print Network [OSTI]

of Mount Sharp in Gale Crater to understand Mars as a possible place for life. A dust devil towers about are younger, having formed between 1 and 2 billion years ago. Mars has the largest volcano in the solar system

Waliser, Duane E.

173

asian sand dust: Topics by E-print Network  

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

that trigger dust storms, and the lifting of dust by dust devils and other small-scale vortices. We also discuss the physics of wind-blown sand and dune formation on Venus...

174

african dust measured: Topics by E-print Network  

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

swath of the HiRISE instrument has three separate charge-coupled devices (CCDs) and color filters that observe the surface in rapid cadence. Active features, such as dust devils,...

175

E-Print Network 3.0 - allan sikk riho Sample Search Results  

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

S.K. Bennacef, L. Devillers, S. Foukia, J.J. Gangolf, S. Rosset Summary: of the static train information (database RIHO) via a network connection. The returned information is...

176

E-Print Network 3.0 - anti vasemgi riho Sample Search Results  

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

S.K. Bennacef, L. Devillers, S. Foukia, J.J. Gangolf, S. Rosset Summary: of the static train information (database RIHO) via a network connection. The returned information is...

177

E-Print Network 3.0 - anisotropic olivier wood Sample Search...  

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

(INRIA... (INRIA Sophia-Antipolis), sous la direction de M. Olivier Devillers (IN- RIA) et M. Gilles Schaeer (CNRS... (anciennement Prisme) de l'Inria Sophia-Antipolis, sous...

178

Mode-locking in Coupled Map Lattices R. Carretero-Gonzalez  

E-Print Network [OSTI]

of the wave has a Devil's staircase dependence on the coupling parameter. A wave travelling with rational the transition between two superstable states of the local map. The velocity of the pulses exhibits a staircase

179

PHYSICAL REVIEW E 88, 042152 (2013) Unstable supercritical discontinuous percolation transitions  

E-Print Network [OSTI]

, such as displaying a "Devil's staircase" of discrete jumps in the supercritical regime. Here we investigate whether where the order parameter exhibits a staircase, the largest discontinuity generically does not coincide

D'Souza, Raissa

180

E-Print Network 3.0 - antiphase domain boundaries Sample Search...  

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

and Ecology 5 Long period structures in Ti1+xAl3-x alloys : experimental evidence of a devil's staircase ? Summary: of the domains (limited by the antiphase boundaries)...

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181

JOURNAL DE PHYSIQUE Colloque C3, suppl6ment au n03, Tome 46, mars 1985 page C3-309  

E-Print Network [OSTI]

, facets of higher and higher order can form a t low temperatures, leading to a devil's staircase a t T = 0 s attraction between steps, the devi 1's staircase disappears part1y or completely, and edges between different

Paris-Sud XI, Université de

182

C0-semigroup, 114, 163 spaces, 351  

E-Print Network [OSTI]

Fr´echet, 386 functional, 415 G^ateaux, 389 variational, 415 weak, 158, 295, 362 #12;432 Index devil's staircase, 32 diagonal argument, 46 diagonalizable matrix, 216 diagonally dominant matrix, 79 diameter, 11

Thomases, Becca

183

Journal of Statistical Physics, Vol. 76, Nos. 1/2, 1994 Molecule Formation and the Farey Tree in the  

E-Print Network [OSTI]

; whilein nonneutral systems the phase diagram exhibits Farey tree order (Aubry sequence) and a devil's staircase structure. Conjectures are presented for the boundary of the segregated domain and the general

Ueltschi, Daniel

184

Low-Temperature Ultrafast Mobility in Systems with Long-Range Repulsive Interactions: M. Hupalo,1  

E-Print Network [OSTI]

and that this is one of the best realizations of an outstanding prediction in theoretical physics, i.e., the ``devil's staircase'' (DS) [1]. As predicted 25 years ago in systems with long-range (LR) repulsive interactions

Zaluska-Kotur, Magdalena

185

Physica D 140 (2000) 227243 The structure of mode-locked regions in quasi-periodically  

E-Print Network [OSTI]

) into the devil's staircase of rotation numbers obtained in a number of real systems: the plateaus of the staircase correspond to parameter values in the mode-locked tongues (see e.g. [2]). Recently, there has been

Pikovsky, Arkady

186

Modelocking in Coupled Map Lattices R. CarreteroGonz'alez \\Lambda y , D.K. Arrowsmith and F. Vivaldi  

E-Print Network [OSTI]

of the wave has a Devil's staircase dependence on the coupling parameter. A wave travelling with rational the transition between two superstable states of the local map. The velocity of the pulses exhibits a staircase

187

Behavior of the Escape Rate Function in Hyperbolic Dynamical Systems  

E-Print Network [OSTI]

principle holds under generic conditions. However, we also show that the escape rate function forms a devil's staircase with jumps along sequences of regular holes and present examples to elucidate some

Demers, Mark

188

Random complex dynamics and singular functions on the  

E-Print Network [OSTI]

of the devil's staircase. By using Birkhoff's ergodic theorem and potential theory, we investigate the non+ is called the devil's staircase. This is a typical example of singular functions. 1.210.4 0.6 0.6 0.80.2 0+ is continuous on R, varies only on the Cantor middle third set (which is a thin fractal set), and monotone. T

Sumi, Hiroki

189

The diet of Hinds Cave (41 VV 456), Val Verde County, Texas: the coprolite evidence  

E-Print Network [OSTI]

to the longevity of this adaptive 'nunting and gathering lifeway include: -ag'e Cave (Ross 1965); Fate Eeli Shelter (Parsons 1965); Arenosa Shelter (Dibble 1967); Baker Cave (Hester 1978); the Devil's Mouth Site (Johnson 1964) and the Devil' s Rockshelter... was excavated in 1975 and was chosen for excavation in order to determine the depth of cultural deposits in this area of the site (field notes 1975). Radiocarbon dates on charcoal from Area D, level 7 have produced dates of 6230 + 110 B. C. (TX2737) and 6330...

Stock, Janet Ann

1983-01-01T23:59:59.000Z

190

How to Improve Geospatial Data Usability: From Metadata to Quality-Aware GIS Community  

E-Print Network [OSTI]

How to Improve Geospatial Data Usability: From Metadata to Quality-Aware GIS Community R. Devillers), Canada 3 ­ Industrial Research Chair in Geospatial Databases for Decision Support, Laval University, retrieve and analyze geospatial data. The field grew exponentially and, in the last two decades

191

Charged lattice gas with a neutralizing background V. A. Levashov and M. F. Thorpe  

E-Print Network [OSTI]

to long-range Coulomb interactions, and overall charge neutrality is provided by a negative background. For a linear chain with infinite- range interactions, we use a devil's staircase formalism to obtain of the ordering of intercalated metal ions in positive electrodes of lithium batteries or in graphite. DOI: 10

Levashov, Valentin

192

J. geol. Soc. London,Vol. 138,1981,pp.675-694, 13 figs. PrintedinNorthernIreland. LowerSiluriandistalshelfstorm-inducedturbiditesinthe  

E-Print Network [OSTI]

of the Telychian shelf. The sedimentology, however, indicates the pres- ence of horizonsinterpretedasturbidites. The sedimentology,toolmarksandtrace fossils are described,andaninterpretation of the origin of the sandy layers.U.G.D.). Sedimentology Thissection is basedonobservationsandcollections madeatthe Hughley Brooktributaryand Devil

Benton, Michael

193

Chaos, Fractals and Bifurcations Lecturer: Chris King king@math.auckland.ac.nz, Ph 88818  

E-Print Network [OSTI]

-locking and the devil's staircase. Structural stability, bifurcation theory, Morse-smale systems homoclinic pointsMATHS 745 Chaos, Fractals and Bifurcations Lecturer: Chris King king@math.auckland.ac.nz, Ph 88818 Chaos, fractals and bifurcation, and their application to wide areas including commerce, medicine

King, Chris

194

SMALL-SCALE STRUCTURE VIA FLOWS ALBERT M. FISHER  

E-Print Network [OSTI]

sets 6 5. The extended Cantor function (or Devil's Staircase) 7 6. The scenery ow 8 7. The Fuchsian. For a smooth embedded manifold one sees just the tangent space asymptotically, but for fractal sets and related as owing on a uni#12;cation of the dynamical and the parameter space. For fractal sets, the translation

Provence Aix-Marseille I, Université de

195

Abstract : 2008 APS-DPP Temperature gradients are supported by cantori in chaotic fields  

E-Print Network [OSTI]

(s)+T(s, , ), where s is a radial coordinate. To(s) is generally a smoothed devil's staircase: flat across exceed 1010 . The temperature adapts to the fractal structure of the magnetic field. To show the connection between the fractal structure of the magnetic field and the near-fractal structure

Hudson, Stuart

196

International Journal of Bifurcation and Chaos, Vol. 14, No. 9 (2004) 31793204 c World Scientific Publishing Company  

E-Print Network [OSTI]

a quasi-periodic or a periodic. Moreover, the range b of the window of periodic cycles constitutes a devil's staircase. When A(b) 1, finitely many chaotic regions and window regions exist and interweave with each. Keywords: Cellular neural networks; CNN; chaos; crises; fractal; Lady's shoe; Lyapunov exponent. Work

Lin, Wen-Wei

197

JOURNAL DE PHYSIQUE Colloque C8, Suppl6ment au no 12,Tome 49, d6cembre 1988  

E-Print Network [OSTI]

of the magnetization has a certain resemblance TIME (rn sec ) to the devil's staircase. Fractal dimensions of the FigJOURNAL DE PHYSIQUE Colloque C8, Suppl6ment au no 12,Tome 49, d6cembre 1988 FRACTAL DIMENSION that the Barkhausen noise has a fractal structure of low dimension between 0.7 and 1.3. 1. Introduction An example

Paris-Sud XI, Université de

198

MATHEMATICAL ENGINEERING TECHNICAL REPORTS  

E-Print Network [OSTI]

of the double rotation, the graph is complicated and like a devil's staircase. The complex appearance indicates of parameters such that the double rotation is irreducible to a rotation has a fractal structure. We also number as a function of c reflects the fractal structure, and is very complicated. 1. Introduction

Yamamoto, Hirosuke

199

The ecology and emergence of diseases in fresh waters PIETER T. J. JOHNSON AND SARA H. PAULL  

E-Print Network [OSTI]

The ecology and emergence of diseases in fresh waters PIETER T. J. JOHNSON AND SARA H. PAULL tumours in Tasmanian devils, Correspondence: Pieter T. J. Johnson, Ramaley N122, CB334, University of Colorado, Boulder, CO 80309, U.S.A. E-mail: pieter.johnson@colorado.edu Freshwater Biology (2011) 56, 638

Johnson, Pieter

200

Tolerance and weed management systems in imidazolinone tolerant corn (Zea mays L.)  

E-Print Network [OSTI]

were between 73 to 98% with imazapic or imazapyr plus imazethapyr, regardless of rate or application time. In 1998 at the TAES Field Laboratory control of devil's-claw, smellmelon, and johnsongrass ranged between 40 to 95% throughout the season with all...

Thompson, Ann Marie

2012-06-07T23:59:59.000Z

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


201

@ Boy  

E-Print Network [OSTI]

it with an aspirated "t". "tah". This makes it sound something like "ai ta" which means "love him" in Mandarin. If the government accepts this--and the devil doesn't spirit the boy away -- it will make for a unique email address in the future: @@gmail.com, perhaps...

Hacker, Randi; Tsutsui, William

2007-09-26T23:59:59.000Z

202

SUBTASK 7.2 GLOBAL WARMING AND GREEHOUSE GASES  

SciTech Connect (OSTI)

Evaluation of current climatic trends and reconstruction of paleoclimatic conditions for Devils Lake have been conducted based on diatom-inferred salinity for the last 2000 years. The 3-year cross-disciplinary research, funded by the U.S. Department of Energy (DOE) was carried out by the Energy & Environmental Research Center (EERC) and St. Croix Watershed Research Station (SCWRS) at the Science Museum of Minnesota. The results indicate that frequent climatic fluctuations resulting in alternating periods of drought and wet conditions are typical for the northern Great Plains and suggest that the severity and length of extremes exceeded those on modern record. Devils Lake has experienced five fresh periods and two minor freshening periods in the last 2000 years. Transitions between fresh and saline periods have been relatively fast, representing lake level changes that have been similar to those observed in the last 150 years. From 0 to 1070 A.D., Devils Lake showed more variable behavior, with fresh phases centered at 200, 500, 700, and 1000 A.D. From 1070 A.D. to present, Devils Lake was generally saline, experiencing two minor freshening periods at 1305-1315 and 1800-1820 A.D and the major current freshening from 1960 A.D. to present.

Jaroslav Solc; Kurt Eylands; Jaroslav Solc Jr.

2005-01-01T23:59:59.000Z

203

Quantum phase transition in the Frenkel-Kontorova chain: From pinned instanton glass to sliding phonon gas  

E-Print Network [OSTI]

glass is transformed into the sliding phonon gas with gapless phonon excitations. This transition materials 5­7 , and, more re- cently, to charge-density waves 8 and dry friction 9,10 . Despite the fact Aubry discovered 6 a new type of ground state that has fractal properties known as ``devil's staircase

Shepelyansky, Dima

204

Porno for Pyros (features Perry Farrel on vocals, previously of Jane's Addiction)  

E-Print Network [OSTI]

Porno for Pyros (features Perry Farrel on vocals, previously of Jane's Addiction) Sadness! because i love her so! i got the devil in me! it's sadness! it's just a cloud Porno for Pyros alone it was porno for pyros! got in my car saw the fire and smoke, headed to it just

205

WestSolarGroundMount City of Phoenix/ASU West  

E-Print Network [OSTI]

Fletcher WestSolarGroundMount Lawn Field City of Phoenix/ASU West South Fields Community Park Parking Lot 12 North Zone #12; 2E · Credit Union · Parking & Transit Services · Devils Den · Jamba Juice · P.O.D. Market

206

Resonance and fractal geometry Johann Bernoulli Institute for Mathematics and Computer Science  

E-Print Network [OSTI]

, K. Efstathiou and E. Subramanian, Heteroclinic cycles between unstable attractors. #12;Devil's staircase -0.6 -0.4 -0.2 0 0.2 0.4 0.6 -0.4 -0.2 0 0.2 0.4 rotation number mean rotation as a function

Broer, H.W.

207

Entropy Of Maps With Horizontal Gaps  

E-Print Network [OSTI]

We study the behavior of topological entropy in one-parameter families of interval maps obtained from a continuous map f by truncating it at the level depending on the parameter. When f is piecewise monotone, the entropy function has the devil's staircase structure.

Micha Misiurewicz March

208

Spontaneous phase transitions in magnetic films with a modulated structure  

SciTech Connect (OSTI)

The influence of monoperiodic and biperiodic bias fields on the nucleation of domain structures in quasi-uniaxial magnetic films near the Curie point has been studied experimentally. The main types of observed nonuniform magnetic moment distributions have been established and chains of a devil's staircase phase transitions are shown to be realized when the films are slowly cooled.

Arzamastseva, G. V.; Evtikhov, M. G.; Lisovskii, F. V., E-mail: lisf@rambler.ru; Mansvetova, E. G. [Russian Academy of Sciences, Kotelnikov Institute of Radio Engineering and Electronics, Fryazino Branch (Russian Federation)

2011-09-15T23:59:59.000Z

209

An Economic Study of a Typical Ranching Area on the Edwards Plateau of Texas.  

E-Print Network [OSTI]

was photographed May 25. 1919. before any stock had been grazed on this land that ................................................ year Close view of sotol. fifty miles south of Sonora. in the Devils River region . This is good sheep and goat range... of the range 174 An approximation of the proportion of the potential carrying capac- .................... ity utilized by cattle. sheep and goats 177: 13 grazing nh 'igure Page 4 Level, rolling and rough lands, and the types of livestock best adapted...

Youngblood, B. (Bonney); Cox, Alonzo B. (Alonzo Bettis)

1922-01-01T23:59:59.000Z

210

Renormalization, unstable manifolds, and the fractal structure of mode locking  

SciTech Connect (OSTI)

The apparent universality of the fractal dimension of the set of quasiperiodic windings at the onset of chaos in a wide class of circle maps is described by construction of a universal one-parameter family of maps which lies along the unstable manifold of the renormalization group. The manifold generates a universal ''devil's staircase'' whose dimension agrees with direct numerical calculations. Applications to experiments are discussed.

Cvitanovic, P.; Jensen, M.H.; Kadanoff, L.P.; Procaccia, I.

1985-07-22T23:59:59.000Z

211

Resonance and fractal geometry Johann Bernoulli Institute for Mathematics and Computer Science  

E-Print Network [OSTI]

;Devil's staircase -0.6 -0.4 -0.2 0 0.2 0.4 0.6 -0.4 -0.2 0 0.2 0.4 rotation number mean rotationResonance and fractal geometry Henk Broer Johann Bernoulli Institute for Mathematics and Computer space non-resonance fractal geometry Cantor set, topologically small (nowhere dense) positive Lebesgue

Broer, H.W.

212

Regional geologic characterization of the Second Bone Spring Sandstone, Delaware basin, Lea and Eddy Counties, New Mexico  

E-Print Network [OSTI]

Belt / r / I Devils / River Uplift 80 60 160 km l00 mi Figure 1. Map showing the location of the Permian basin and its important structural features in Southeast New Mexico and West Texas. Modified from Yang and Dorobek (1995). extension... Pennsylvanian Guadalupe Leonard Wolfcamp Virgil Missouri Des Moines Atoka ell Canyon herry Canyon rushy Canyon Victorio Peak jism n t irsbsS casse~curb== Hueco Cisco Canyon Strawn Atoka Tansill Yates Seven River~ ueen A Gra bur San...

Downing, Amanda Beth

2001-01-01T23:59:59.000Z

213

Composition, structure, and habitat associations of fish assemblages of the Dolan Falls Preserve  

E-Print Network [OSTI]

at which their survival is threatened (Hubbs and Garrett 1990). Moreover, the introduction of species like Micropterus dolomieu (smallmouth bass), Morone chrysops (white bass), and Lepomis aurirus (yellowbreast sunfish) could lead to a decline... of the native endemics due to competition or predation. Over the past few decades, the Devil's River has been sampled at irregular time intervals and at scattered locations, mostly well below Dolan Falls (Harrell 1974; Garrett et al. 1992). Little effort has...

Valdes Cantu, Nora Edith

1995-01-01T23:59:59.000Z

214

UNIVERSITE DE BOURGOGNE UFR Sciences et Techniques, Institut de Chimie Molculaire de l'Universit de  

E-Print Network [OSTI]

organique Présentée par Abdou Khadre Djily DIME ************************ Réactivité électrochimique de la'ont accordé pendant toutes ces années. tel-00909526,version1-26Nov2013 #12;4 Articles parus 1- Abdou. K. D, 41, 929-936 2- Charles H. Devillers, Abdou K. D. Dime, Hélène Cattey and Dominique Lucas Chem. Commun

Paris-Sud XI, Université de

215

Studies of chaos and thermal noise in a driven Josephson junction using an electronic analog  

SciTech Connect (OSTI)

Using an electronic analog of a resistively shunted driven Josephson junction, the authors have demonstrated a number of effects, including the appearance of a devil's staircase in the current-voltage characteristic, the onset of chaos, and the effect of noise on these phenomena. The authors stress that the analog is simple, but models the junction behavior with a high degree of accuracy and detail.

Pegrum, C.M.; Gurney, W.S.C.; Nisbet, R.M.

1989-03-01T23:59:59.000Z

216

Successive Phase Transitions in Antiferroelectric Liquid Crystal Systems  

E-Print Network [OSTI]

An axial next-nearest-neighbor XY model is studied as a model of chiral liquid crystals which exhibit many ferro-, ferri- and antiferroelectric tilted smectic phases. Depending on the values of interaction parameters, this model exhibits Ising symmetric (i.e., the tilt directions of directors are parallel or anti parallel) phases or XY symmetric phases. Phases with each type-of-symmetry show the character of devil's staircase, which has been observed in experiments.

Masaya Koroishi; Masashi Torikai; Mamoru Yamashita

2005-10-03T23:59:59.000Z

217

One-dimensional Ising model in a random field  

SciTech Connect (OSTI)

The one-dimensional Ising model in a random field is studied with use of a functional recursion relation. For temperatures exceeding a given value, the fixed function of the relation is found and shown to be a devil's staircase. From this result it is possible to evaluate the free energy to arbitrary precision. In the field-strength--temperature plane, a crossover line corresponding to the onset of frustration is found.

Bruinsma, R.; Aeppli, G.

1983-05-09T23:59:59.000Z

218

Evaluation of Background Concentrations of Contaminants in an Unusual Desert Arroyo Near a Uranium Mill Tailings Disposal Cell - 12260  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) Office of Legacy Management (LM) manages 27 sites that have groundwater containing uranium concentrations above background levels. The distal portions of the plumes merge into background groundwater that can have 50 ?g/L or more uranium. Distinguishing background from site-related uranium is often problematic, but it is critical to determining if remediation is warranted, establishing appropriate remediation goals, and evaluating disposal cell performance. In particular, groundwater at disposal cells located on the upper Cretaceous Mancos Shale may have relatively high background concentrations of uranium. Elevated concentrations of nitrate, selenium, and sulfate accompany the uranium. LM used geologic analogs and uranium isotopic signatures to distinguish background groundwater from groundwater contaminated by a former uranium processing site. The same suite of contaminants is present in groundwater near former uranium processing sites and in groundwater seeps emanating from the Mancos Shale over a broad area. The concentrations of these contaminants in Many Devils Wash, located near LM's Shiprock disposal cell, are similar to those in samples collected from many Mancos seeps, including two analog sites that are 8 to 11 km from the disposal cell. Samples collected from Many Devils Wash and the analog sites have high AR values (about 2.0)-in contrast, groundwater samples collected near the tailings disposal cell have AR values near 1.0. These chemical signatures raise questions about the origin of the contamination seeping into Many Devils Wash. (authors)

Bush, Richard P. [U.S. Department of Energy Office of Legacy Management (United States); Morrison, Stan J. [S.M. Stoller Corporation (United States)

2012-07-01T23:59:59.000Z

219

The staircase structure of the Southern Brazilian Continental Shelf  

E-Print Network [OSTI]

We show some evidences that the Southeastern Brazilian Continental Shelf (SBCS) has a devil's staircase structure, with a sequence of scarps and terraces with widths that obey fractal formation rules. Since the formation of these features are linked with the sea level variations, we say that the sea level changes in an organized pulsating way. Although the proposed approach was applied in a particular region of the Earth, it is suitable to be applied in an integrated way to other Shelves around the world, since the analyzes favor the revelation of the global sea level variations.

M. S. Baptista; L. A. Conti

2008-10-24T23:59:59.000Z

220

Quantum Catalysis of Magnetic Phase Transitions in a Quantum Simulator  

E-Print Network [OSTI]

We control quantum fluctuations to create the ground state magnetic phases of a classical Ising model with a tunable longitudinal magnetic field using a system of 6 to 10 atomic ion spins. Due to the long-range Ising interactions, the various ground state spin configurations are separated by multiple first-order phase transitions, which in our zero temperature system cannot be driven by thermal fluctuations. We instead use a transverse magnetic field as a quantum catalyst to observe the first steps of the complete fractal devil's staircase, which emerges in the thermodynamic limit and can be mapped to a large number of many-body and energy-optimization problems.

Philip Richerme; Crystal Senko; Simcha Korenblit; Jacob Smith; Aaron Lee; Rajibul Islam; Wesley C. Campbell; Christopher Monroe

2013-03-27T23:59:59.000Z

Note: This page contains sample records for the topic "gaslight cupton devils" 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

Local and nonlocal parallel heat transport in general magnetic fields  

SciTech Connect (OSTI)

A novel approach for the study of parallel transport in magnetized plasmas is presented. The method avoids numerical pollution issues of grid-based formulations and applies to integrable and chaotic magnetic fields with local or nonlocal parallel closures. In weakly chaotic fields, the method gives the fractal structure of the devil's staircase radial temperature profile. In fully chaotic fields, the temperature exhibits self-similar spatiotemporal evolution with a stretched-exponential scaling function for local closures and an algebraically decaying one for nonlocal closures. It is shown that, for both closures, the effective radial heat transport is incompatible with the quasilinear diffusion model.

Del-Castillo-Negrete, Diego B [ORNL; Chacon, Luis [ORNL

2011-01-01T23:59:59.000Z

222

Mode locking and chaos in sliding charge-density-wave systems  

SciTech Connect (OSTI)

Sliding CDWs in ac electric fields may serve as model systems for the study of mode-locking phenomena and the transition to chaos in dissipative dynamical system with competing frequencies. The mode-locking structure at the transition is expected to form a complete devil's staircase with fractal dimension D approx. 0.87. Indeed, Brown, Mozurkewich and Gruener have observed a multitude of steps in the I-V characteristics of NbSe/sub 3/ with an apparent fractal dimension D = 0.91 +- 0.03. 16 references.

Bak, P.

1984-01-01T23:59:59.000Z

223

Two-dimensional random walk in a bounded domain  

E-Print Network [OSTI]

In a recent Letter Ciftci and Cakmak [EPL 87, 60003 (2009)] showed that the two dimensional random walk in a bounded domain, where walkers which cross the boundary return to a base curve near origin with deterministic rules, can produce regular patterns. Our numerical calculations suggest that the cumulative probability distribution function of the returning walkers along the base curve is a Devil's staircase, which can be explained from the mapping of these walks to a non-linear stochastic map. The non-trivial probability distribution function(PDF) is a universal feature of CCRW characterized by the fractal dimension d=1.75(0) of the PDF bounding curve.

Mahashweta Basu; P. K. Mohanty

2009-10-30T23:59:59.000Z

224

Local and Nonlocal Parallel Heat Transport in General Magnetic Fields  

SciTech Connect (OSTI)

A novel approach for the study of parallel transport in magnetized plasmas is presented. The method avoids numerical pollution issues of grid-based formulations and applies to integrable and chaotic magnetic fields with local or nonlocal parallel closures. In weakly chaotic fields, the method gives the fractal structure of the devil's staircase radial temperature profile. In fully chaotic fields, the temperature exhibits self-similar spatiotemporal evolution with a stretched-exponential scaling function for local closures and an algebraically decaying one for nonlocal closures. It is shown that, for both closures, the effective radial heat transport is incompatible with the quasilinear diffusion model.

Castillo-Negrete, D. del; Chacon, L. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-8071 (United States)

2011-05-13T23:59:59.000Z

225

Rudyard Kipling's search for an integrated Anglo-Indian personality  

E-Print Network [OSTI]

Beginning in 1881, when he was only a boy of nineteen, Kipling worked for several years as a journalist in India. He began writing short stories during this time, and while he is most famous as the author of The ~te Books the Just go gto les. "The M Who..., even voice the procession of men, women, children, and devils that was always passing at the bottom of his bed. He had a sick man's command of language, When he recovered I suggested that he should write out the who affair from beginning to end...

Payne, Don Mark

1992-01-01T23:59:59.000Z

226

Descent Into Darkness  

E-Print Network [OSTI]

by the time our warp drive is repaired. Until then, the ship is his." "Aye, sir." Shortly after that, she turbolift doors open behind her. heard the "What the devil is going on here?" demanded Captain Scott. "And what are vou doing here?" His gesture...." "I'd rather see this through, Mr. Scott, if you don't mind. You might need my knowledge of the multiplex, and with the PHOENIX warp drive in shambles, and most of my crew on extended leave, I'm not needed anywhere in the near future." Scott...

Vreba, Joan Marie

1988-01-01T23:59:59.000Z

227

Pure Maple Syrup Issue 3  

E-Print Network [OSTI]

Benny Mona Moore: 45 meanings Quill , 47 jealousy Gillian Middleton 51 chasing rainbows Laurie Taylor 64 oblivion Gillian Middleton 90 rosewell Julien 96 deal with the devil Gillian Middleton 99 staying Julien 108 lazy days Quill...; 121..., that despite all the women in the cop's life, the mountie is Ray's One True Love... DUE SOUTH is a quality TV show, created by Paul Haggis, and produced at various times by Paul Haggis, Kathy Slevin and/or Jeff King. The three main characters are Constable...

Multiple Contributors

1996-01-01T23:59:59.000Z

228

Ecclesiastical Influence on the Legend of the Holy Grail  

E-Print Network [OSTI]

recorded in the New Testament; and the restoration of the dead to life by Joseph of Arimai 35 thea. More important examples, so far as pure eccle- siasticism is concerned, are found in exorcism by means 32. W. W. Skeat, editor, op. cit., p. 2. 33- H.... Oskar Sommer, editor, op. cit., p. 16 . 34. H. Oskar Sommer, editor, op. cit., Volume I, p. 193. 35. H. Oskar Sommer, editor, op. cit.. Volume I, p. 255. 17 37 of holy water and of the sign of the cross. By the latter, not only are devils vanquished...

Crawford, Nelson A. Jr

1914-01-01T23:59:59.000Z

229

RMOTC TEST REPORT  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298, and 323 K.OfficeNote: This is a2 MSA2WrayAsMUD DEVIL

230

Interstat Issue 17  

E-Print Network [OSTI]

introduced. Kirk: Brains, Spock. Brains. That's why I'M the Captain and you're not. Spock: Phewee! (He takes a good look at what he's up against and gags) It makes me sick! Yuck! Ugh! P.U.! Don't make me stick my hands in all that gook! Kirk: (somewhat... shocked) Spock, I'm surprised at you! Spock: (also shocked) What kind of Captain would make his First Officer throw up on purpose? Kirk: A real devil. Now do it. The Horta bellows back in anger and threatens to eat them, pointed ears and all. Spock...

1979-01-01T23:59:59.000Z

231

TrekISM Issue 7  

E-Print Network [OSTI]

???TRIVIA ???TRIVIA ???TRIVIA ???TRIVIA ???TRIVIA ???TRIVIA ???TRIVIA ???TRIVIA ANSWERS to Elin CarIson 's Trivia Qui z (TREKi sM #6) l=beauty 2=Argelius ("Wolf in the Fold") 3=72 (Space Seed") 4=The Horta ("Devil in the Dark") 5=Starbase 27 ("This Side... accidently replaced the 9 with a 0, resulting in "08th percentile"o If she keeps denegrading my efforts in this manner I'm going to stop correcting her spelling!] ? o. () @~~~~'l00 - -[f 00 ~mm~ PAGE 3 DE-CLASSIFIED AD: FANTASIES UNFULLFILLED...

1979-01-01T23:59:59.000Z

232

We Have Found a Witch! May We Burn Her?  

E-Print Network [OSTI]

, charges were brought against her in 1712 for “conversing familiarly with the Devil in the shape of a cat.”1 These charges, however, did not include what the peasants saw as the most damning evidence: the spectral tormenting of a maid. Jane, who... was condemned to die by the jury who heard her case, never faced the executioner. She lived out the rest of her days in a small cottage on the estate of a kindly Lord. But why wasn’t she executed? There was the normal amount of evidence against her...

Davis, Allison

2009-10-01T23:59:59.000Z

233

Stochastic modeling of Congress  

E-Print Network [OSTI]

We analyze the dynamics of growth of the number of congressmen supporting the resolution HR1207 to audit the Federal Reserve. The plot of the total number of co-sponsors as a function of time is of "Devil's staircase" type. The distribution of the numbers of new co-sponsors joining during a particular day (step height) follows a power law. The distribution of the length of intervals between additions of new co-sponsors (step length) also follows a power law. We use a modification of Bak-Tang-Wiesenfeld sandpile model to simulate the dynamics of Congress and obtain a good agreement with the data.

Simkin, M V

2010-01-01T23:59:59.000Z

234

Arnold tongues for a resonant injection-locked frequency divider: analytical and numerical results  

E-Print Network [OSTI]

In this paper we consider a resonant injection-locked frequency divider which is of interest in electronics, and we investigate the frequency locking phenomenon when varying the amplitude and frequency of the injected signal. We study both analytically and numerically the structure of the Arnold tongues in the frequency-amplitude plane. In particular, we provide exact analytical formulae for the widths of the tongues, which correspond to the plateaux of the devil's staircase picture. The results account for numerical and experimental findings presented in the literature for special driving terms and, additionally, extend the analysis to a more general setting.

Bartuccelli, Michele V; Gentile, Guido; Schilder, Frank

2009-01-01T23:59:59.000Z

235

Simultaneous ordering of holes and spins in La[sub 2]NiO[sub 4. 125  

SciTech Connect (OSTI)

We report a single-crystal neutron diffraction study of the incommensurate magnetic ordering that occurs in La[sub 2]NiO[sub 4.125] below 110 K. Besides the magnetic first and third harmonic Bragg peaks, we have also observed second harmonic peaks associated with charge ordering. The magnitude of the incommensurate splitting, [epsilon], is strongly temperature dependent. Lock-in behavior indicates that [epsilon] tends to rational fractions, while regions of continuous variation suggest a devil's staircase. Analysis of these features indicates that the holes, induced by the excess oxygen, order in domain walls that form antiphase boundaries between antiferromagnetic domains.

Tranquada, J.M.; Buttrey, D.J.; Sachan, V.; Lorenzo, J.E. (Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States) Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716 (United States))

1994-08-15T23:59:59.000Z

236

Quantum Phases of Cold Polar Molecules in 2D Optical Lattices  

SciTech Connect (OSTI)

We study the quantum phases of hard-core bosonic polar molecules on a two-dimensional square lattice interacting via repulsive dipole-dipole interactions. In the limit of small tunneling, we find evidence for a devil's staircase, where Mott solids appear at rational fillings of the lattice. For finite tunneling, we establish the existence of extended regions of parameters where the ground state is a supersolid, obtained by doping the solids either with particles or vacancies. We discuss the effects of finite temperature and finite-size confining potentials as relevant to experiments.

Capogrosso-Sansone, B. [ITAMP, Harvard-Smithsonian Center of Astrophysics, Cambridge, Massachusetts, 02138 (United States); Trefzger, C.; Lewenstein, M. [ICREA and ICFO-Institut de Ciencies Fotoniques, 08860 Castelldefels, Barcelona (Spain); Zoller, P.; Pupillo, G. [IQOQI and Institute for Theoretical Physics, University of Innsbruck, 6020 Innsbruck (Austria)

2010-03-26T23:59:59.000Z

237

Two-dimensional random walk in a bounded domain  

E-Print Network [OSTI]

In a recent Letter Ciftci and Cakmak [EPL 87, 60003 (2009)] showed that the two dimensional random walk in a bounded domain, where walkers which cross the boundary return to a base curve near origin with deterministic rules, can produce regular patterns. Our numerical calculations suggest that the cumulative probability distribution function of the returning walkers along the base curve is a Devil's staircase, which can be explained from the mapping of these walks to a non-linear stochastic map. The non-trivial probability distribution function(PDF) is a universal feature of CCRW characterized by the fractal dimension d=1.75(0) of the PDF bounding curve.

Basu, Mahashweta

2010-01-01T23:59:59.000Z

238

Anderson localization for one-dimensional difference Schroedinger operator with quasiperiodic potential  

SciTech Connect (OSTI)

The Schroedinger difference operator considered here has the form (H/sub epsilon/(..cap alpha..)psi)(n) = -epsilon(psi(n + 1) + psi(n - 1)) + V(nomega + ..cap alpha..psi(n) where V is a C/sup 2/-periodic Morse function taking each value at not more than two points. It is shown that for sufficiently small epsilon the operator H/sub epsilon/(..cap alpha..) has for a.e. ..cap alpha.. a pure point spectrum. The corresponding eigenfunctions decay exponentially outside a finite set. The integrated density of states is an incomplete devil's staircase with infinitely many flat pieces.

Sinai, Ya.G.

1987-03-01T23:59:59.000Z

239

Frequency locking in the injection-locked frequency divider equation  

E-Print Network [OSTI]

We consider a model for the injection-locked frequency divider, and study analytically the locking onto rational multiples of the driving frequency. We provide explicit formulae for the width of the plateaux appearing in the devil's staircase structure of the lockings, and in particular show that the largest plateaux correspond to even integer values for the ratio of the frequency of the driving signal to the frequency of the output signal. Our results prove the experimental and numerical results available in the literature.

Bartuccelli, Michele V; Gentile, Guido

2008-01-01T23:59:59.000Z

240

Two-stage melting of solids in strongly interacting Rydberg atoms  

E-Print Network [OSTI]

We analyze the ground state properties of a one-dimensional cold atomic system in a lattice, where Rydberg excitations are created by an external laser drive. In the classical limit, the ground state is characterized by a complete devil's staircase for the commensurate solid structures of Rydberg excitations. Using perturbation theory and a mapping onto an effective low energy Hamiltonian, we find a transition of these commensurate solids into a floating solid with algebraic correlations. For stronger quantum fluctuations the floating solid eventually melts within a second quantum phase transition and the ground state becomes paramagnetic.

Weimer, Hendrik

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gaslight cupton devils" 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

Two-Stage Melting in Systems of Strongly Interacting Rydberg Atoms  

E-Print Network [OSTI]

We analyze the ground state properties of a one-dimensional cold atomic system in a lattice, where Rydberg excitations are created by an external laser drive. In the classical limit, the ground state is characterized by a complete devil's staircase for the commensurate solid structures of Rydberg excitations. Using perturbation theory and a mapping onto an effective low energy Hamiltonian, we find a transition of these commensurate solids into a floating solid with algebraic correlations. For stronger quantum fluctuations the floating solid eventually melts within a second quantum phase transition and the ground state becomes paramagnetic.

Hendrik Weimer; Hans Peter Büchler

2010-07-13T23:59:59.000Z

242

Study of an Ising model with competing long- and short-range interactions  

SciTech Connect (OSTI)

A classical spin-one lattice gas model is used to study the competition between short-range ferromagnetic coupling and long-range antiferromagnetic Coulomb interactions. The model is a coarse-grained representation of frustrated phase separation in high-temperature superconductors. The ground states are determined for the complete range of parameters by using a combination of numerical and analytical techniques. The crossover between ferromagnetic and antiferromagnetic states proceeds via a rich structure of highly symmetric striped and checkerboard phases. There is no devil's staircase behavior because mixtures of stripes with different period phase separate.

Loew, U.; Emery, V.J. (Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)); Fabricius, K. (Department of Physics, University of Wuppertal, 42097 Wuppertal (Germany)); Kivelson, S.A. (Department of Physics, University of California, Los Angeles, California 90024 (United States))

1994-03-21T23:59:59.000Z

243

Two-Stage Melting in Systems of Strongly Interacting Rydberg Atoms  

SciTech Connect (OSTI)

We analyze the ground state properties of a one-dimensional cold atomic system in a lattice, where Rydberg excitations are created by an external laser drive. In the classical limit, the ground state is characterized by a complete devil's staircase for the commensurate solid structures of Rydberg excitations. Using perturbation theory and a mapping onto an effective low-energy Hamiltonian, we find a transition of these commensurate solids into a floating solid with algebraic correlations. For stronger quantum fluctuations the floating solid eventually melts within a second quantum phase transition and the ground state becomes paramagnetic.

Weimer, Hendrik; Buechler, Hans Peter [Institute of Theoretical Physics III, Universitaet Stuttgart, 70550 Stuttgart (Germany)

2010-12-03T23:59:59.000Z

244

Twelve Months of Air Quality Monitoring at Ash Meadows National Wildlife Refuge, Southwestern Rural Nevada, U.S.A (EMSI April 2007)  

SciTech Connect (OSTI)

The one year of air quality monitoring data collected at the Ash Meadows National Wildlife Refuge (NWR) was the final part of the air quality "Scoping Studies" for the Environmental Monitoring Systems Initiative (EMSI) in southern and central Nevada. The objective of monitoring at Ash Meadows was to examine aerosol and meteorological data, seasonal trends in aerosol and meteorological parameters as well as to examine evidence for long distance transport of some constituents. The 9,307 hectare refuge supports more than 50 springs and 24 endemic species, including the only population of the federally listed endangered Devil’s Hole pupfish (Cyprinodon diabolis) (U.S. Fish and Wildlife Service, 1990). Ash Meadows NWR is located in a Class II air quality area, and the aerosol measurements collected with this study are compared to those of Interagency Monitoring of Protected Visual Environments (IMPROVE) sites. Measurements taken at Ash Meadows NWR over a period of 12 months provide new baseline air quality and meteorological information for rural southwestern Nevada, specifically Nye County and the Amargosa Valley.

Engelbrecht, Johann P; Shafer, David S; Campbell, Dave; Campbell, Scott; McCurdy, Greg; Kohl, Steven D; Nikolich, George; Sheetz, Larry

2011-08-01T23:59:59.000Z

245

Field studies of the potential for wind transport of plutonium- contaminated soils at sites in Areas 6 and 11, Nevada Test Site  

SciTech Connect (OSTI)

This report describes and documents a series of field experiments carried out in Areas 6 and 11 of the Nevada Test Site in June and July 1994 to determine parameters of boundary layer winds, surface characteristics, and vegetation cover that can be used to predict dust emissions from the affected sites. Aerodynamic roughness of natural sites is determined largely by the lateral cover of the larger and more permanent roughness elements (shrubs). These provide a complete protection of the surface from wind erosion. Studies using a field-portable wind tunnel demonstrated that natural surfaces in the investigated areas of the Nevada Test Site are stable except at very high wind speeds (probably higher than normally occur, except perhaps in dust devils). However, disturbance of silty-clay surfaces by excavation devices and vehicles reduces the entrainment threshold by approximately 50% and makes these areas potentially very susceptible to wind erosion and transport of sediments.

Lancaster, N.; Bamford, R.; Metzger, S. [University and Community Coll. System of Nevada, Reno, NV (United States). Quaternary Sciences Center, Desert Research Institute

1995-07-01T23:59:59.000Z

246

Modulated order in classical magnetoelastic chains  

SciTech Connect (OSTI)

We investigate the nature of modulated lattice distortions that can occur in a two-dimensional array of classical magnetoelastic chains coupled together by elastic interactions only. The phase diagram for the lattice structure is obtained by numerically minimizing a one-dimensional, temperature-dependent, effective-free-energy functional of the elastic variables. At zero temperature, only phases where the winding number is uniquely defined are found, and the transitions among these phases are suggestive of a complete devil's-staircase behavior. These numerical results are consistent with N. Ishimura's analytic demonstration that such a staircase exists (J. Phys. Soc. Jpn. 54, 4752 (1985)). At finite temperatures, phases where the winding number is not uniquely defined are found and, in addition, first- and second-order transitions appear. Also of interest are superdegenerate lines where the equilibrium phase is composed of noninteracting solitons of zero energy.

Marchand, M.; Caille, A.

1988-09-01T23:59:59.000Z

247

Neutral-ionic transitions in organic mixed-stack compounds  

SciTech Connect (OSTI)

Torrance et al. have made the interesting observation that several mixed-stack organic compounds undergo transitions from neutral states to ionic states as the temperature or pressure is varied. We examine a simple model of such transitions including Coulomb interaction and hybridization of neutral and ionic states. In the limit of weak hybridization and long-range repulsive interaction between ionic planes, it is proven that there is a complete devil's staircase where the degree of ionicity assumes an infinity of rational values. For attractive interactions between ionic planes, the neutral-ionic transition is shown to be first order for weak hybridization. Comparison with experiment indicates that this situation applies to tetrathiafulvalene (TTF) chloranil. For strong hybridization the transition is continuous but goes through a metallic phase. It is shown, for the first time, that the spectrum of the charge-transfer Hamiltonian contains both a bound spectrum, the observed charge-transfer excitations, and a continuum.

Bruinsma, R.; Bak, P.; Torrance, J.B.

1983-01-01T23:59:59.000Z

248

Pinning and annealing of solitons in modulated systems  

SciTech Connect (OSTI)

Chaotic pinning of solitons occurs in nearly commensurate modulated systems when the distance between solitons becomes so large that their interaction cannot overcome the Peierls pinning potential. We study numerically within the mean-field theory the stability of the randomly pinned ''chaotic'' states as a function of temperature near the commensurate-incommensurate (CI) transition in the axial next-nearest-neighbor Ising model. The pinned state turns into a regular incommensurate state as the temperature is raised. A more regular soliton state emerges as the temperature is lowered. The system never reaches the ground state (Frank and van der Merwe or devil's-staircase behavior) near the CI transition because of the pinning. The chaos and the hysteresis may explain recent experimental findings in magnetic and ferroelectric systems.

Jensen, M.H.; Bak, P.

1984-06-01T23:59:59.000Z

249

Stochastic modeling of a serial killer  

E-Print Network [OSTI]

We analyze the time pattern of the activity of a serial killer, who during twelve years had murdered 53 people. The plot of the cumulative number of murders as a function of time is of "Devil's staircase" type. The distribution of the intervals between murders (step length) follows a power law with the exponent of 1.4. We propose a model according to which the serial killer commits murders when neuronal excitation in his brain exceeds certain threshold. We model this neural activity as a branching process, which in turn is approximated by a random walk. As the distribution of the random walk return times is a power law with the exponent 1.5, the distribution of the inter-murder intervals is thus explained. We confirm analytical results by numerical simulation.

Simkin, M V

2012-01-01T23:59:59.000Z

250

Photon Long-Range Repulsive Interaction in the Jaynes-Cummings Lattice with Rydberg Atoms  

E-Print Network [OSTI]

We propose how to realize a strong photon long-range repulsive interaction by controlling the van der Waals repulsive force between Rydberg atoms located in different cavities in extended Jaynes-Cumings-Hubbard lattices. We find that this photon long-range repulsive interaction can generate complex quantum phases, some of which have no analogy in condensed-matter and atomic physics. For example, without photon hopping, a photon devil's staircase induced by the breaking of long-range translation symmetry can emerge. If photon hopping occurs, we predict a photon-floating solid phase, due to the motion of particle- and hole-like defects. More importantly, for a large chemical potential in the resonant case, the photon hopping can detected by measuring the number of polaritons via resonance fluorescence.

Yuanwei Zhang; Jingtao Fan; J. -Q. Liang; Jie Ma; Gang Chen; Suotang Jia; Franco Nori

2014-10-21T23:59:59.000Z

251

Behavior of the Escape Rate Function in Hyperbolic Dynamical Systems  

E-Print Network [OSTI]

For a fixed initial reference measure, we study the dependence of the escape rate on the hole for a smooth or piecewise smooth hyperbolic map. First, we prove the existence and Holder continuity of the escape rate for systems with small holes admitting Young towers. Then we consider general holes for Anosov diffeomorphisms, without size or Markovian restrictions. We prove bounds on the upper and lower escape rates using the notion of pressure on the survivor set and show that a variational principle holds under generic conditions. However, we also show that the escape rate function forms a devil's staircase with jumps along sequences of regular holes and present examples to elucidate some of the difficulties involved in formulating a general theory.

Demers, Mark

2011-01-01T23:59:59.000Z

252

Chaos Pass Filter: Linear Response of Synchronized Chaotic Systems  

E-Print Network [OSTI]

The linear response of synchronized time-delayed chaotic systems to small external perturbations, i.e., the phenomenon of chaos pass filter, is investigated for iterated maps. The distribution of distances, i.e., the deviations between two synchronized chaotic units due to external perturbations on the transfered signal, is used as a measure of the linear response. It is calculated numerically and, for some special cases, analytically. Depending on the model parameters this distribution has power law tails in the region of synchronization leading to diverging moments of distances. This is a consequence of multiplicative and additive noise in the corresponding linear equations due to chaos and external perturbations. The linear response can also be quantified by the bit error rate of a transmitted binary message which perturbs the synchronized system. The bit error rate is given by an integral over the distribution of distances and is calculated analytically and numerically. It displays a complex nonmonotonic behavior in the region of synchronization. For special cases the distribution of distances has a fractal structure leading to a devil's staircase for the bit error rate as a function of coupling strength. The response to small harmonic perturbations shows resonances related to coupling and feedback delay times. A bi-directionally coupled chain of three units can completely filtered out the perturbation. Thus the second moment and the bit error rate become zero.

Steffen Zeeb; Johannes Kestler; Ido Kanter; Wolfgang Kinzel

2013-01-29T23:59:59.000Z

253

Data-Adaptive Wavelets and Multi-Scale Singular Spectrum Analysis  

E-Print Network [OSTI]

Using multi-scale ideas from wavelet analysis, we extend singular-spectrum analysis (SSA) to the study of nonstationary time series of length $N$ whose intermittency can give rise to the divergence of their variance. SSA relies on the construction of the lag-covariance matrix C on M lagged copies of the time series over a fixed window width W to detect the regular part of the variability in that window in terms of the minimal number of oscillatory components; here W = M Dt, with Dt the time step. The proposed multi-scale SSA is a local SSA analysis within a moving window of width M fractal or power-law behavior which mimic selected features of certain climatic and geophysical time series. A real application is to the Southern Oscillation index (SOI) monthly values for 1933-1996. Our methodology highlights an abrupt periodicity shift in the SOI near 1960. This abrupt shift between 4 and 3 years supports the Devil's staircase scenario for the El Nino/Southern Oscillation phenomenon.

P. Yiou; D. Sornette; M. Ghil

1998-10-29T23:59:59.000Z

254

Mode-locking and the transition to chaos in dissipative systems  

SciTech Connect (OSTI)

Dissipative systems with two competing frequencies exhibit transitions to chaos. We have investigated the transition through a study of discrete maps of the circle onto itself, and by constructing and analyzing return maps of differential equations representing some physical systems. The transition is caused by interaction and overlap of mode-locked resonances and takes place at a critical line where the map losses invertibility. At this line the mode-locked intervals trace up a complete Devil's Staircase whose complementary set is a Cantor set with universal fractal dimension D approx. 0.87. Below criticality there is room for quasiperiodic orbits, whose measure is given by an exponent ..beta.. approx. 0.34 which can be related to D through a scaling relation, just as for second order phase transitions. The Lebesgue measure serves as an order parameter for the transition to chaos. The resistively shunted Josephson junction, and charge density waves (CDWs) in rf electric fields are usually described by the differential equation of the damped driven pendulum. The 2d return map for this equation collapses to ld circle map at and below the transition to chaos. The theoretical results on universal behavior, derived here and elsewhere, can thus readily be checked experimentally by studying real physical systems. Recent experiments on Josephson junctions and CDWs indicating the predicted fractal scaling of mode-locking at criticality are reviewed.

Bak, P.; Bohr, T.; Jensen, M.H.

1984-01-01T23:59:59.000Z

255

Transition to chaos by interaction of resonances in dissipative systems. I. Circle maps  

SciTech Connect (OSTI)

Dissipative dynamical systems with two competing frequencies exhibit transitions to chaos. We have investigated the transition through a study of discrete maps of the circle onto itself. The transition is caused by interaction and overlap of mode-locked resonances and occurs at a critical line where the map loses invertibility. At this line the mode-locked intervals trace up a complete devil's staircase whose complementary set is a Cantor set with fractal dimension Dapprox.0.87. Numerical results indicate that the dimension is universal for maps with cubic inflection points. Below criticality the staircase is incomplete, leaving room for quasiperiodic behavior. The Lebesgue measure of the quasiperiodic orbits seems to be given by an exponent ..beta..approx.0.35 which can be related to D through the scaling relation D = 1-..beta../..nu... The exponent ..nu.. characterizes the cutoff of narrow plateaus near the transition. A variety of other exponents describing the transition to chaos is defined and estimated numerically.

Jensen, M.H.; Bak, P.; Bohr, T.

1984-10-01T23:59:59.000Z

256

AntBot: Anti-pollution peer-to-peer botnets  

SciTech Connect (OSTI)

Botnets, which are responsible for many email sparnming and DDoS (Distributed Denial of Service) attacks in the current Internet, have emerged as one of most severe cyber-threats in recent years. To evade detection and improve resistance against countermeasures, botnets have evolved from the first generation that relies on IRC chat channels to deliver commands to the current generation that uses highly resilient P2P (Peer-to-Peer) protocols to spread their C&C (Command and Control) information. It is, however, revealed that P2P botnets, although relieved from the single point of failure that IRC botnets suffer, can be easily disrupted using pollution-based mitigation schemes [15]. In this paper, we play the devil's advocate and propose a new type of hypothetical botnets called AntBot, which aim to propagate their C&C information to individual bots even though there exists an adversary that persistently pollutes keys used by seized bots to search the command information. The key idea of AntBot is a tree-like structure that bots use to deliver the command so that captured bots reveal only limited information. To evaluate effectiveness of AntBot against pollution-based mitigation in a virtual environment, we develop a distributed P2P botnet simulator. Using extensive experiments, we demonstrate that AntBot operates resiliently against pollution-based mitigation. We further present a few potential defense schemes that could effectively disrupt AntBot operations.

Yan, Guanhua [Los Alamos National Laboratory; Eidenbenz, Stephan [Los Alamos National Laboratory; Ha, Duc T [UNIV. AT BUFFALO

2009-01-01T23:59:59.000Z

257

Separation of suspended particles in microfluidic systems by directional-locking in periodic fields  

E-Print Network [OSTI]

We investigate the transport and separation of overdamped particles under the action of a uniform external force in a two-dimensional periodic energy landscape. Exact results are obtained for the deterministic transport in a square lattice of parabolic, repulsive centers that correspond to a piecewise-continuous linear-force model. The trajectories are periodic and commensurate with the obstacle lattice and exhibit phase-locking behavior in that the particle moves at the same average migration angle for a range of orientation of the external force. The migration angle as a function of the orientation of the external force has a Devil's staircase structure. The first transition in the migration angle was analyzed in terms of a Poincare map, showing that it corresponds to a tangent bifurcation. Numerical results show that the limiting behavior for impenetrable obstacles is equivalent to the high Peclet number limit in the case of transport of particles in a periodic pattern of solid obstacles. Finally, we show how separation occurs in these systems depending on the properties of the particles.

John Herrmann; Michael Karweit; German Drazer

2009-04-16T23:59:59.000Z

258

Spectra and gap amplification for systems with two widely different incommensurate periodicities  

SciTech Connect (OSTI)

We derive analytically the spectrum for the Schroedinger equation for quasiperiodic systems with two length scales: one large ''macroscopic'' scale (e.g., a-italic cos(2..pi..x-italic/lambda)) and one small ''microscopic'' scale (e.g., v-italic cos(2..pi..x-italic)). The phase diagram includes regimes with exponentially narrow gaps due to the slowly varying potential, regimes where the rapidly varying potential amplifies these narrow gaps, and regimes with exponentially narrow ''Landau bands.'' The full ''devil's-staircase'' spectrum with gaps at wave vectors q-italic = m-italic..pi..+n-italic..pi../lambda develops in a hierarchical manner as a-italic increases. The results apply to systems with superlattices, to celestial orbits with two periodic perturbations, to systems with slowly varying lattice distortions, and, in particular, to quasi-one-dimensional magnets such as bis(tetramethyltetraselenafulvalene) perchlorate ((TMTSF)/sub 2/ClO/sub 4/) in magnetic fields, where our findings may provide insight into the experimentally observed cascade of phase transitions.

Azbel, M.Y.; Bak, P.; Chaikin, P.M.

1986-08-01T23:59:59.000Z

259

Parallel heat transport in integrable and chaotic magnetic fields  

SciTech Connect (OSTI)

The study of transport in magnetized plasmas is a problem of fundamental interest in controlled fusion, space plasmas, and astrophysics research. Three issues make this problem particularly challenging: (i) The extreme anisotropy between the parallel (i.e., along the magnetic field), {chi}{sub ||} , and the perpendicular, {chi}{sub Up-Tack }, conductivities ({chi}{sub ||} /{chi}{sub Up-Tack} may exceed 10{sup 10} in fusion plasmas); (ii) Nonlocal parallel transport in the limit of small collisionality; and (iii) Magnetic field lines chaos which in general complicates (and may preclude) the construction of magnetic field line coordinates. Motivated by these issues, we present a Lagrangian Green's function method to solve the local and non-local parallel transport equation applicable to integrable and chaotic magnetic fields in arbitrary geometry. The method avoids by construction the numerical pollution issues of grid-based algorithms. The potential of the approach is demonstrated with nontrivial applications to integrable (magnetic island), weakly chaotic (Devil's staircase), and fully chaotic magnetic field configurations. For the latter, numerical solutions of the parallel heat transport equation show that the effective radial transport, with local and non-local parallel closures, is non-diffusive, thus casting doubts on the applicability of quasilinear diffusion descriptions. General conditions for the existence of non-diffusive, multivalued flux-gradient relations in the temperature evolution are derived.

Castillo-Negrete, D. del; Chacon, L. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-8071 (United States)

2012-05-15T23:59:59.000Z

260

Wave-particle interaction and Hamiltonian dynamics investigated in a traveling wave tube  

SciTech Connect (OSTI)

For wave-particle interaction studies, the one-dimensional (1-D) beam-plasma system can be advantageously replaced by a Traveling Wave Tube (TWT). This led us to a detailed experimental analysis of the self-consistent interaction between unstable waves and a small either cold or warm beam. More recently, a test electron beam has been used to observe its non-self-consistent interaction with externally excited wave(s). The velocity distribution function of the electron beam is investigated with a trochoidal energy analyzer that records the beam energy distribution at the output of the TWT. An arbitrary waveform generator is used to launch a prescribed spectrum of waves along the slow wave structure (a 4 m long helix) of the TWT. The nonlinear synchronization of particles by a single wave responsible for Landau damping is observed. The resonant velocity domain associated to a single wave is also observed, as well as the transition to large-scale chaos when the resonant domains of two waves and their secondary resonances overlap leading to a typical 'devil's staircase' behavior. A new strategy for the control of chaos is tested.

Doveil, Fabrice; Macor, Alessandro [Physique des Interactions Ioniques et Moleculaires, Unite 6633 CNRS-Universite de Provence, Equipe Turbulence Plasma, Case 321, Centre de Saint-Jerome, F-13397 Marseille cedex 20 (France)

2006-05-15T23:59:59.000Z

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


261

Dislocation-mediated melting of one-dimensional Rydberg crystals  

SciTech Connect (OSTI)

We consider cold Rydberg atoms in a one-dimensional optical lattice in the Mott regime with a single atom per site at zero temperature. An external laser drive with Rabi frequency {Omega} and laser detuning {Delta} creates Rydberg excitations whose dynamics is governed by an effective spin-chain model with (quasi) long-range interactions. This system possesses intrinsically a large degree of frustration resulting in a ground-state phase diagram in the ({Delta},{Omega}) plane with a rich topology. As a function of {Delta}, the Rydberg blockade effect gives rise to a series of crystalline phases commensurate with the optical lattice that form a so-called devil's staircase. The Rabi frequency {Omega}, on the other hand, creates quantum fluctuations that eventually lead to a quantum melting of the crystalline states. Upon increasing {Omega}, we find that generically a commensurate-incommensurate transition to a floating Rydberg crystal that supports gapless phonon excitations occurs first. For even larger {Omega}, dislocations within the floating Rydberg crystal start to proliferate and a second, Kosterlitz-Thouless-Nelson-Halperin-Young dislocation-mediated melting transition finally destroys the crystalline arrangement of Rydberg excitations. This latter melting transition is generic for one-dimensional Rydberg crystals and persists even in the absence of an optical lattice. The floating phase and the concomitant transitions can, in principle, be detected by Bragg scattering of light.

Sela, Eran; Garst, Markus [Institut fuer Theoretische Physik, Universitaet zu Koeln, Zuelpicher Str. 77, DE-50937 Koeln (Germany); Punk, Matthias [Physik Department, Technische Universitaet Muenchen, James-Franck-Strasse, DE-85748 Garching (Germany); Department of Physics, Harvard University, Cambridge, Massachusetts 02138 (United States)

2011-08-15T23:59:59.000Z

262

3D Magnetotelluic characterization of the Coso GeothermalField  

SciTech Connect (OSTI)

Electrical resistivity may contribute to progress inunderstanding geothermal systems by imaging the geometry, bounds andcontrolling structures in existing production, and thereby perhapssuggesting new areas for field expansion. To these ends, a dense grid ofmagnetotelluric (MT) stations plus a single line of contiguous bipolearray profiling has been acquired over the east flank of the Cosogeothermal system. Acquiring good quality MT data in producing geothermalsystems is a challenge due to production related electromagnetic (EM)noise and, in the case of Coso, due to proximity of a regional DCintertie power transmission line. To achieve good results, a remotereference completely outside the influence of the dominant source of EMnoise must be established. Experimental results so far indicate thatemplacing a reference site in Amargosa Valley, NV, 65 miles from the DCintertie, isstill insufficient for noise cancellation much of the time.Even though the DC line EM fields are planar at this distance, theyremain coherent with the nonplanar fields in the Coso area hence remotereferencing produces incorrect responses. We have successfully unwrappedand applied MT times series from the permanent observatory at Parkfield,CA, and these appear adequate to suppress the interference of thecultural EM noise. The efficacy of this observatory is confirmed bycomparison to stations taken using an ultra-distant reference site eastof Socorro, NM. Operation of the latter reference was successful by usingfast ftp internet communication between Coso Junction and the New MexicoInstitute of Mining and Technology, using the University of Utah site asintermediary, and allowed referencing within a few hours of datadownloading at Coso. A grid of 102 MT stations was acquired over the Cosogeothermal area in 2003 and an additional 23 stations were acquired toaugment coverage in the southern flank of the first survey area in 2005.These data have been inverted to a fully three-dimensional conductivitymodel. Initial analysis of the Coso MT data was carried out using 2D MTimaging. An initial 3D conductivity model was constructed from a seriesof 2D resistivity images obtained using the inline electric fieldmeasurements (Zyx impedance elements) along several measurementtransects. This model was then refined through a 3D inversion process.This model shows the controlling geological structures possiblyinfluencing well production at Coso and correlations with mapped surfacefeatures such as faults and regional geoelectric strike. The 3D modelalso illustrates the refinement in positioning of conductivity contactswhen compared to isolated 2D inversion transects. The conductivity modelhas also been correlated with microearthquake locations, well fluidproduction intervals and most importantly with an acoustic and shearvelocity model derived by Wu and Lees (1999). This later correlationshows the near-vertical high conductivity structure on the eastern flankof the producing field is also a zone of increased acoustic velocity andincreased Vp/Vs ratio bounded by mapped fault traces. South of theDevil's Kitchen is an area of high geothermal well density, where highlyconductive near surface material is interpreted as a clay cap alterationzone manifested from the subsurface geothermal fluids and relatedgeochemistry. Beneath the clay cap, however, the conductivity isnondescript, whereas the Vp/Vs ratio is enhanced over the productionintervals. It is recommended that more MT data sites be acquired to thesouthwest of the Devil's Kitchen area to better refine the conductivitymodel in that area.

Newman, Gregory A.; Hoversten, G. Michael; Wannamaker, Philip E.; Gasperikova, Erika

2007-04-23T23:59:59.000Z

263

COMMENTS ON THE SEARCH FOR ELECTROSTATIC DISCHARGES ON MARS  

SciTech Connect (OSTI)

Ruf et al. used the Deep Space Network (DSN) to search for the emission of non-thermal radiation by martian dust storms, theoretically predicted by Renno et al. They detected the emission of non-thermal radiation that they were searching for, but were surprised that it contained spectral peaks suggesting modulation at various frequencies and their harmonics. Ruf et al. hypothesized that the emission of non-thermal radiation was caused by electric discharges in a deep convective dust storm, modulated by Schumann resonances (SRs). Anderson et al. used the Allen Telescope Array (ATA) to search for similar emissions. They stated that they found only radio frequency interference (RFI) during their search for non-thermal emission by martian dust storms and implicitly suggested that the signal detected by Ruf et al. was also RFI. However, their search was not conducted during the dust storm season when deep convective storms are most likely to occur. Here, we show that the ubiquitous dust devils and small-scale dust storms that were instead likely present during their observations are too shallow to excite SRs and produce the signals detected by Ruf et al. We also show that the spectral and temporal behavior of the signals detected by Anderson et al. corroborates the idea that they originated from man-made pulse-modulated telecommunication signals rather than martian electric discharges. In contrast, an identical presentation of the signals detected by Ruf et al. demonstrates that they do not resemble man-made signals. The presentation indicates that the DSN signals were consistent with modulation by martian SRs, as originally hypothesized by Ruf et al. We propose that a more comprehensive search for electrostatic discharges be conducted with either the ATA or DSN during a future martian dust storm season to test the hypothesis proposed by Ruf et al.

Renno, Nilton O.; Ruf, Christopher S., E-mail: renno@alum.mit.edu [Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, MI (United States)

2012-12-20T23:59:59.000Z

264

Application of the method of effective potentials to a model for twinning in elastic materials  

SciTech Connect (OSTI)

We extend the method of effective potentials to systems with next-nearest-neighbor interactions, and apply it to a one-dimensional discrete model for twins in elastic materials. The energy of the system is given by H = +(..gamma../2) (u/sub n//sub +1/-2u/sub n/+u/sub n-1/)/sup 2/ -cosu/sub n/, where the first two terms model the elastic strain-dependent energy which we take to be in the form of a double well in the strains and the third term gives its dependence on the discretized strain gradients. The periodic potential in the last term is introduced to allow for additional interactions with a background such as a parent phase, grain boundaries, or another array of twins. We obtain the phase diagram and show that it consists of various modulated commensurate as well as incommensurate ground-state configurations. We find continuous phonon-driven transitions between the homogeneous and any modulated phase, an incomplete devil's staircase in a narrow region close to the homogeneous phase and first-order soliton-driven transitions between commensurate phases. The first-order transition lines end at triple points where three commensurate phases coexist. In contrast to other nonconvex models we do not find here any superdegenerate points. We give general arguments which exclude the existence of such points in the present model. Preliminary results obtained by driving the system are discussed. These consist of various metastable configurations exhibiting strong hysteretic variation with the driving force.

Marianer, S.; Floria, L.M.

1988-12-01T23:59:59.000Z

265

Observation and Control of Hamiltonian Chaos in Wave-particle Interaction  

SciTech Connect (OSTI)

Wave-particle interactions are central in plasma physics. The paradigm beam-plasma system can be advantageously replaced by a traveling wave tube (TWT) to allow their study in a much less noisy environment. This led to detailed analysis of the self-consistent interaction between unstable waves and an either cold or warm electron beam. More recently a test cold beam has been used to observe its interaction with externally excited wave(s). This allowed observing the main features of Hamiltonian chaos and testing a new method to efficiently channel chaotic transport in phase space. To simulate accurately and efficiently the particle dynamics in the TWT and other 1D particle-wave systems, a new symplectic, symmetric, second order numerical algorithm is developed, using particle position as the independent variable, with a fixed spatial step.This contribution reviews: presentation of the TWT and its connection to plasma physics, resonant interaction of a charged particle in electrostatic waves, observation of particle trapping and transition to chaos, test of control of chaos, and description of the simulation algorithm.The velocity distribution function of the electron beam is recorded with a trochoidal energy analyzer at the output of the TWT. An arbitrary waveform generator is used to launch a prescribed spectrum of waves along the 4m long helix of the TWT. The nonlinear synchronization of particles by a single wave, responsible for Landau damping, is observed. We explore the resonant velocity domain associated with a single wave as well as the transition to large scale chaos when the resonant domains of two waves and their secondary resonances overlap. This transition exhibits a devil's staircase behavior when increasing the excitation level in agreement with numerical simulation.A new strategy for control of chaos by building barriers of transport in phase space as well as its robustness is successfully tested. The underlying concepts extend far beyond the field of electron devices and plasma physics.

Doveil, F.; Ruzzon, A. [Turbulence Plasma, PIIM, UMR6633 CNRS/Universite de Provence, case 321, Centre universitaire de Saint Jerome, FR-13397 Marseilles cedex 20 (France); Consorzio RFX, Corso Stati Uniti 4, IT-35127 Padova (Italy); Elskens, Y. [Turbulence Plasma, PIIM, UMR6633 CNRS/Universite de Provence, case 321, Centre universitaire de Saint Jerome, FR-13397 Marseilles cedex 20 (France)

2010-11-23T23:59:59.000Z

266

National Emission Standards for Hazardous Air Pollutants Calendar Year 2005  

SciTech Connect (OSTI)

The Nevada Test Site (NTS) is operated by the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (NNSA/NSO). From 1951 through 1992, the NTS was operated as the nation’s site for nuclear weapons testing. The release of man-made radionuclides from the NTS as a result of testing activities has been monitored since the first decade of atmospheric testing. After 1962, when nuclear tests were conducted only underground, the radiation exposure to the public surrounding the NTS was greatly reduced. After the 1992 moratorium on nuclear testing, radiation monitoring on the NTS focused on detecting airborne radionuclides that are resuspended into the air (e.g., by winds, dust-devils) along with historically-contaminated soils on the NTS. To protect the public from harmful levels of man-made radiation, the Clean Air Act, National Emission Standards for Hazardous Air Pollutants (NESHAP) (40 Code of Federal Regulations 61 Subpart H) limits the release of radioactivity from a U. S. Department of Energy (DOE) facility (e.g., the NTS) to 10 millirem per year (mrem/yr) effective dose equivalent (EDE) to any member of the public. This is the dose limit established for someone living off of the NTS for inhaling radioactive particles that may be carried by wind off of the NTS. This limit assumes that members of the public surrounding the NTS may also inhale “background levels” or radioactive particles unrelated to NTS activities that come from naturally-occurring elements in the environment (e.g., radon gas from the earth or natural building materials) or from other man-made sources (e.g., cigarette smoke). The U. S. Environmental Protection Agency (EPA) requires DOE facilities (e.g., the NTS) to demonstrate compliance with the NESHAP dose limit by annually estimating the dose to a hypothetical member of the public, referred to as the maximally exposed individual (MEI), or the member of the public who resides within an 80-kilometer (50-mile) radius of the facility who would experience the highest annual dose. This dose to a hypothetical person living close to the NTS cannot exceed 10 mrem/yr. C.1 This report has been produced annually for the EPA Region IX, and for the state of Nevada since 1992 and documents that the estimated EDE to the MEI has been, and continues to be, well below the NESHAP dose limit. The report format and level of technical detail has been dictated by the EPA and DOE Headquarters over the years. It is read and evaluated for NESHAP compliance by federal and state regulators. Each section and appendix presents technical information (e.g., NTS emission source estimates, onsite air sampling data, air transport model input parameters, dose calculation methodology, etc.), which supports the annual dose assessment conclusions. In 2005, as in all previous years for which this report has been produced, the estimated dose to the public from inhalation of radiological emissions from current and past NTS activities is shown to be well below the 10 mrem/yr dose limit. This was demonstrated by air sampling data collected onsite at each of six EPA-approved “critical receptor” stations on the NTS. The sum of measured EDEs from the four stations at the NTS boundaries is 2.5 mrem/yr. This dose is 25 percent of the allowed NESHAP dose limit. Because the nearest member of the public resides approximately 20 kilometers (12 miles) from the NTS boundary, this individual receives only a small fraction of this dose. NESHAP compliance does not require DOE facilities to estimate annual inhalation dose from non-DOE activities. Therefore, this report does not estimate public radiation doses from any other sources or activities (e.g., naturally-occurring radon, global fallout).

Bechtel Nevada

2006-06-01T23:59:59.000Z

267

Major Oil Plays in Utah and Vicinity  

SciTech Connect (OSTI)

Utah oil fields have produced over 1.2 billion barrels (191 million m{sup 3}). However, the 13.7 million barrels (2.2 million m{sup 3}) of production in 2002 was the lowest level in over 40 years and continued the steady decline that began in the mid-1980s. The Utah Geological Survey believes this trend can be reversed by providing play portfolios for the major oil-producing provinces (Paradox Basin, Uinta Basin, and thrust belt) in Utah and adjacent areas in Colorado and Wyoming. Oil plays are geographic areas with petroleum potential caused by favorable combinations of source rock, migration paths, reservoir rock characteristics, and other factors. The play portfolios will include: descriptions and maps of the major oil plays by reservoir; production and reservoir data; case-study field evaluations; locations of major oil pipelines; identification and discussion of land-use constraints; descriptions of reservoir outcrop analogs; and summaries of the state-of-the-art drilling, completion, and secondary/tertiary techniques for each play. This report covers research activities for the sixth quarter of the project (October 1 through December 31, 2003). This work included describing outcrop analogs for the Jurassic Twin Creek Limestone and Mississippian Leadville Limestone, major oil producers in the thrust belt and Paradox Basin, respectively, and analyzing best practices used in the southern Green River Formation play of the Uinta Basin. Production-scale outcrop analogs provide an excellent view of reservoir petrophysics, facies characteristics, and boundaries contributing to the overall heterogeneity of reservoir rocks. They can be used as a ''template'' for evaluation of data from conventional core, geophysical and petrophysical logs, and seismic surveys. In the Utah/Wyoming thrust belt province, the Jurassic Twin Creek Limestone produces from subsidiary closures along major ramp anticlines where the low-porosity limestone beds are extensively fractured and sealed by overlying argillaceous and non-fractured units. The best outcrop analogs for Twin Creek reservoirs are found at Devils Slide and near the town of Peoa, Utah, where fractures in dense, homogeneous non-porous limestone beds are in contact with the basal siltstone units (containing sealed fractures) of the overlying units. The shallow marine, Mississippian Leadville Limestone is a major oil and gas reservoir in the Paradox Basin of Utah and Colorado. Hydrocarbons are produced from basement-involved, northwest-trending structural traps with closure on both anticlines and faults. Excellent outcrops of Leadville-equivalent rocks are found along the south flank of the Uinta Mountains, Utah. For example, like the Leadville, the Mississippian Madison Limestone contains zones of solution breccia, fractures, and facies variations. When combined with subsurface geological and production data, these outcrop analogs can improve (1) development drilling and production strategies such as horizontal drilling, (2) reservoir-simulation models, (3) reserve calculations, and (4) design and implementation of secondary/tertiary oil recovery programs and other best practices used in the oil fields of Utah and vicinity. In the southern Green River Formation play of the Uinta Basin, optimal drilling, development, and production practices consist of: (1) owning drilling rigs and frac holding tanks; (2) perforating sandstone beds with more than 8 percent neutron porosity and stimulate with separate fracture treatments; (3) placing completed wells on primary production using artificial lift; (4) converting wells relatively soon to secondary waterflooding maintaining reservoir pressure above the bubble point to maximize oil recovery; (5) developing waterflood units using an alternating injector--producer pattern on 40-acre (16-ha) spacing; and (6) recompleting producing wells by perforating all beds that are productive in the waterflood unit. As part of technology transfer activities during this quarter, an abstract describing outcrop reservoir analogs was accepted by the American Assoc

Thomas C. Chidsey; Craig D. Morgan; Kevin McClure; Douglas A. Sprinkel; Roger L. Bon; Hellmut H. Doelling

2003-12-31T23:59:59.000Z