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  • 1990-1994  (488)
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  • 1
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Springer
    Call number: M 93.0783
    Type of Medium: Monograph available for loan
    Pages: XIV, 310 S.
    Edition: 4., vollst. überarb. Aufl.
    ISBN: 3540566783
    Series Statement: Springer-Lehrbuch
    Classification:
    Mineralogy
    Language: German
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 2
    Monograph available for loan
    Monograph available for loan
    Cambridge [u.a.] : Cambridge University Press
    Call number: AWI A17-94-0199 ; PIK M 410-93-0278
    Description / Table of Contents: This book is an in-depth and broad text on the subject of chaos in dynamical systems. It is intended to serve both as a graduate course text for science and engineering students, and as a reference and introduction to the subject for researchers. Within the past decades scientists, mathematicians and engineers have realized that a large variety of systems exhibit complicated evolution with time. This complicated behavior, called chaos, occurs so frequently that it has become important for the workers in many disciplines to have a good grasp of the fundamentals and basic tools of the emerging science of chaotic dynamics. Topics in the book include: attractors; basins of attraction; one-dimensional maps; fractals; natural measure; strange attractors; delay coordinate embedding; fat fractals; Hausdorff dimension; symbolic dynamics; stable and unstable manifolds; Lyapunov exponents; metric and topological entropy; controlling chaos; chaotic transients; fractal basin boundaries; chaotic scattering; quasiperiodicity; Hamiltonian systems; KAM tori; period doubling cascades; the intermittency transition to chaos; crises; bifurcations to chaos in scattering problems and in fractal basin boundaries; the characterization of dynamics by unstable periodic orbits; and quantum chaos in time-independent bounded systems, as well as in temporally kicked and scattering problems. Homework problems are also included throughout the book. - This book will be of value to advanced undergraduates and graduate students in science, engineering and mathematics taking courses in chaotic dynamics, as well as to researchers interested in the subject.
    Type of Medium: Monograph available for loan
    Pages: XII, 385 S.
    Edition: 1. publ.
    ISBN: 0521432154
    Note: Contents: Preface. - 1 Introduction and overview. - 1.1 Some history. - 1.2 Examples of chaotic behavior. - 1.3 Dynamical systems. - 1.4 Attractors. - 1.5 Sensitive dependence on initial conditions. - 1.6 Delay coordinates. - Problems. - Notes. - 2 One-dimensional maps. - 2.1 Piecewise linear one-dimensional maps. - 2.2 The logistic map. - 2.3 General discussion of smooth one-dimensional maps. - 2.4 Examples of applications of one-dimensional maps to chaotic systems of higher dimensionality. - Appendix: Some elementary definitions and theorems concerning sets. - Problems. - Notes. - 3 Strange attractors and fractal dimension. - 3.1 The box-counting dimension. - 3.2 The generalized baker's map. - 3.3 Measure and the spectrum of Dq dimensions. - 3.4 Dimension spectrum for the generalized baker's map. - 3.5 Character of the natural measure for the generalized baker's map. - 3.6 The pointwise dimension. - 3.7 Implications and determination of fractal dimension in experiments. - 3.8 Embedding. - 3.9 Fat fractals. - Appendix: Hausdorff dimension. - Problems. - Notes. - 4 Dynamical properties of chaotic systems. - 4.1 The horseshoe map and symbolic dynamics. - 4.2 Linear stability of steady states and periodic orbits. - 4.3 Stable and unstable manifolds. - 4.4 Lyapunov exponents. - 4.5 Entropies. - 4.6 Controlling chaos. - Appendix: Gram-Schmidt orthogonalization. - Problems. - Notes. - 5 Nonattracting chaotic sets. - 5.1 Fractal basin boundaries. - 5.2 Final state sensitivity. - 5.3 Structure of fractal basin boundaries. - 5.4 Chaotic scattering. - 5.5 The dynamics of chaotic scattering. - 5.6 The dimensions of nonattracting chaotic sets and their stable and unstable manifolds. - . - Appendix: Derivation of Eqs. (5.3). - Problems. - Notes. - 6 Quasiperiodicity. - 6.1 Frequency spectrum and attractors. - 6.2 The circle map. - 6.3 N frequency quasiperiodicity with N 〉 2. - 6.4 Strange nonchaotic attractors of quasiperiodically forced systems. - Problems. - Notes. - 7 Chaos in Hamiltonian systems. - 7.1 Hamiltonian systems. - 7.2 Perturbation of integrable systems. - 7.3 Chaos and KAM tori in systems describable by two-dimensional Hamiltonian maps. - 7.4 Higher-dimensional systems. - 7.5 Strongly chaotic systems. - 7.6 The succession of increasingly random systems. - Problems. - Notes. - 8 Chaotic transitions. - 8.1 The period doubling cascade route to chaotic attractors. - 8.2 The intermittency transition to a chaotic attractor. - 8.3 Crises. - 8.4 The Lorenz system: An example of the creation of a chaotic transient. - 8.5 Basin boundary metamorphoses. - 8.6 Bifurcations to chaotic scattering. - Problems. - Notes. - 9 Multifractals. - 9.1 The singularity spectrum f(a). - 9.2 The partition function formalism. - 9.3 Lyapunov partition functions. - 9.4 Distribution of finite time Lyapunov exponents. - 9.5 Unstable periodic orbits and the natural measure. - 9.6 Validity of the Lyapunov and periodic orbits partition functions for nonhyperbolic attractors. - Problems. - Notes. - 10 Quantum chaos. - 10.1 The energy level spectra of chaotic, bounded, time-independent systems. - 10.2 Wavefunctions for classically chaotic, bounded, time-independent systems. - 10.3 Temporally periodic systems. - 10.4 Quantum chaotic scattering. - Problems. - Notes. - References. - Index.
    Location: AWI Reading room
    Location: A 18 - must be ordered
    Branch Library: AWI Library
    Branch Library: PIK Library
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  • 3
    Publication Date: 1991-08-01
    Print ISSN: 0027-0644
    Electronic ISSN: 1520-0493
    Topics: Geography , Geosciences , Physics
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  • 4
    Publication Date: 1992-06-19
    Print ISSN: 0020-7136
    Electronic ISSN: 1097-0215
    Topics: Biology , Medicine
    Published by Wiley
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  • 5
    Publication Date: 2020-08-26
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 6
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    PANGAEA
    In:  Supplement to: Devey, Colin W; Ackermand, Dietrich; Binard, Nicolas; Chmarzynski, P; Franke-Bruckmaier, B; Geldmacher, Jörg; Graupner, T; Haake, F W; Haase, Karsten M; Hemond, Christophe; Krüger, O; Mühlhan, Norbert; O'Connor, John; Ott, S; Peucker-Ehrenbrink, Bernhard; Pototzki, Frank; Segl, Monika; Tichomirov, W (1993): Cruise report SO-84: The St Helena hotspot - Las Palmas-Cape Town 02.01.93-20.02.93. Berichte - Reports, Geologisch-Paläontologisches Institut und Museum, Christian-Albrechts-Universität, Kiel; 64; 1-103; ISSN 0175-9302, TIB - Technische Informationsbibliothek Universitätsbibliothek Hannover, Berichte-Reports, Geologisch-Paläontologisches Institut der Universität Kiel, 64, 103 pp, https://doi.org/10.2312/reports-gpi.1993.64
    Publication Date: 2024-06-26
    Description: The SO-84 cruise from Las Palmas to Cape Town studied the underwater volcanism associated with the St Helena hotspot. Wide-spaced grid mapping of a region south and west of St Helena island identified three previously unknown hotspot volcanoes (which we named Josephine 16°27'S-9°W, Jade 16°13'S-7°46'W and Benjamin 16°12'S-8°31'W) and several older, probably near-ridge-generated seamounts. The newly discovered hotspot seamounts, and the previously-known seamounts of Bagration, Bonaparte and Kutuzov were mapped and sampled. Onboard geochemical studies confirm that they all show trace-element (Rb, Nb, Y, Zr, Sr) enriched, hotspot magma-type compositions. Morphological studies and the state of the samples collected from the seamounts (all have at least 1 mm-thick Mn crusts) suggest that none of the volcanoes is presently active, and that the St Helena hotspot is probably extinct at the present time. Josephine appears to be the youngest volcano, and one dredge here yielded fossil hydrothermal material (Fe-hydroxides). To test the hypothesis that the extinction of the hotspot is due to its magmas being channelled to the Mid-Atlantic Ridge, several dredges were taken on the ridge opposite St Helena. Furthermore, in the proposed influence zone of the St Helena plume head, Grattan seamount (9°44'S-12°48'W) was also sampled to examine whether its composition has been affected by the St Helena plume. During the transit from Las Palmas to St Helena, several sediment cores were taken in 3000 m water depth close to the ridge axis for palaeoclimatological work.
    Keywords: 12DS; 13DS; 14DS; 1DS; 20DS; 21DS; 22DS; 23DS; 24DS; 25DS; 26DS; 27DS; 31DS; 35DS; 37DS; 42DS; 43DS; 44DS; 47DS; 49DS; 53DS; 54DS; 55DS; 59DS; 60DS; 63DS; 64DS; 65DS; 68DS; 69DS; 71DS; 72DS; 74DS; 7DS; 83DS; Comment; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Event label; GIK/IfG; GIK17835-1; GIK17841-1; GIK17846-1; GIK17847-1; GIK17848-1; GIK17854-1; GIK17855-1; GIK17856-1; GIK17857-1; GIK17858-1; GIK17859-1; GIK17860-1; GIK17861-1; GIK17865-1; GIK17869-1; GIK17871-1; GIK17876-1; GIK17877-1; GIK17878-1; GIK17881-1; GIK17883-1; GIK17887-1; GIK17888-1; GIK17889-1; GIK17893-1; GIK17894-1; GIK17897-1; GIK17898-1; GIK17899-1; GIK17902-1; GIK17903-1; GIK17905-1; GIK17906-1; GIK17908-1; GIK17917-1; Identification; Institute for Geosciences, Christian Albrechts University, Kiel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sediment type; Size; SO84; Sonne; South Atlantic; ST. HELENA HOTSPOT; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 725 data points
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  • 7
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Magnetism and superconductivity appear to be intimately connected in the heavy electron (HE) superconductors. For example, it has been conjectured but not proven that the exchange of antiferromagnetic spin fluctuations are responsible for pairing in HE superconductors. In this paper we review recent results in U1−xThxBe13, where specific heat, lower critical field, and zero-field muon-spin-resonance (μSR) measurements reveal another second-order phase transition (below the superconducting transition) to a state which possesses small-moment magnetic correlations for 0.019≤x≤0.043. We present a new phase diagram for (U,Th)Be13 which indicates that the superconducting and magnetic order parameters are closely coupled. A discussion of the nature of the lower phase is presented, including the consideration of a possible magnetic (time-reversal-violating) superconducting state. When UBe13 is doped with B (UBe12.97B0.03) the Kondo temperature is decreased and the specific heat jump at the superconducting transition temperature is significantly enhanced. However, μSR measurements reveal no magnetic signature in UBe12.97B0.03, unlike the case for Th doping. The correlation between changes in the Kondo temperature and changes in the superconducting properties induced by B doping provide evidence for the importance of magnetic excitations in the superconducting pairing interaction in UBe13.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Members of the RBiPt (R=Ce–Lu with the exceptions of Pm and Eu) series have been grown as single crystals. Magnetic susceptibility and electrical resistance have been measured on all members of the series, and specific heat measurements have been performed on representatives. The high temperature resistance uniformly changes from that of a small-gap semiconductor or semimetal seen in NdBiPt to that of a heavy-fermion metal seen in YbBiPt, which shows a linear coefficient of specific heat at low temperatures of 8 J/K2 mole. Further, the lighter rare earth members show an unusually sharp increase in their resistance associated with antiferromagnetic ordering at low temperatures.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report specific heat and μSR measurements on Th (x =0.019) and/or B (y=0.03) substituted UBe13. The specific heat data show that either Th or B substitution reduces the Kondo temperature TK and increases the entropy at the superconducting transition by almost 20%, indicating an enhanced density of states. However, whereas μSR shows clear evidence for magnetic correlations for Th substitutions (0.019〈x〈0.043), no magnetism is observed for B substitutions. The enhanced specific heat jump in the B-substituted material is associated with a change in the superconducting properties as TK is reduced.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The compound YbBiPt exhibits an extremely large low-temperature C/T (γ∼8 J K−2 mol−1/Yb) which, if due solely to a renormalized effective mass, would make this material the heaviest correlated electron system known to date. In the Kondo model, the very large γ corresponds to a small characteristic energy scale that is expected to be pressure dependent. We have studied the effect of chemical pressure on YbBiPt single crystals by heat-capacity measurements on Y and Lu-doped samples. We have also made preliminary low-temperature measurements under hydrostatic pressure of the heat capacity (300 mK≤T≤2 K, up to 8 kbar) and resistance (30 mK≤T≤1 K, at 16 kbar).
    Type of Medium: Electronic Resource
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