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  • 1
    Call number: M 16.90059
    Description / Table of Contents: This handbook brings together a great deal of new data on the static and dynamic elastic properties of granular and other composite material. The authors are at the very center of today's research and present new and imported theoretical tools that have enabled our current understanding of the complex behavior of rocks.There are three central themes running throughout the presentation: ? Rocks as the prototypical material for defining a class of materials? The PM space model as a useful theoretical construct for developing a phenomenology? A sequence of refined analysis methods. This suite of
    Type of Medium: Monograph available for loan
    Pages: XIII, 395 S. , ill., maps
    ISBN: 9783527407033
    Classification:
    Planetary Interiors
    Language: English
    Note: Nonlinear Mesoscopic Elasticity; Contents; Preface; Acknowledgements; 1 Introduction; 1.1 Systems; 1.2 Examples of Phenomena; 1.3 The Domain of Exploration; 1.4 Outline; References; 2 Microscopic/Macroscopic Formulation of the Traditional Theory of Linear and Nonlinear Elasticity; 2.1 Prefatory Remarks; 2.2 From Microscopic to Continuum; 2.2.1 A Microscopic Description; 2.2.2 Microscopic Description and Thermodynamics; 2.2.3 From Microscopic Model to Continuum Elasticity; 2.3 Continuum Elasticity and Macroscopic Phenomenology; 2.3.1 Displacement, Strain, and Stress. , 2.3.2 Dynamics of the Displacement Field2.3.3 Coupling Continuum Elasticity to Auxiliary Fields; 2.3.4 Inhomogeneous Elastic Systems; 2.4 Thermodynamics; 2.4.1 Thermodynamic Derivatives; 2.4.2 Series Expansion for ES; 2.4.3 Series Expansion for EZ; 2.4.4 Series Expansion for FT; 2.4.5 Assemble the Pieces; 2.5 Energy Scales; References; 3 Traditional Theory of Nonlinear Elasticity, Results; 3.1 Quasistatic Response; Linear and Nonlinear; 3.1.1 Quasistatic Response; Linear; 3.1.2 Quasistatic Response; Nonlinear; 3.2 Dynamic Response; Linear; 3.3 Quasistatic/Dynamic Response; Nonlinear. , 3.4 Dynamic Response Nonlinear; 3.4.1 Basic Equations; 3.4.2 Wave Propagation; 3.4.3 Resonant Bar; 3.5 Exotic Response; Nonlinear; 3.6 Green Functions; 3.6.1 Green Function, Free Space; 3.6.2 Green Function, Resonant Bar; References; 4 Mesoscopic Elastic Elements and Macroscopic Equations of State; 4.1 Background; 4.2 Elastic Elements; 4.2.1 Hertz-Mindlin Contacts; 4.2.2 Hysteretic Hertzian Contacts; 4.2.3 Hertzian Asperities; 4.2.4 Van der Waals Surfaces; 4.2.5 Other; 4.3 Effective Medium Theory; 4.4 Equations of State; Examples; 4.4.1 Hertzian Contacts; 4.4.2 Van der Waals Surfaces. , 4.4.3 Generalization and CaveatsReferences; 5 Auxiliary Fields; 5.1 Temperature; 5.2 Saturation; 5.2.1 Saturation/Strain Coupling; 5.2.2 Saturation/Strain Response; 5.3 The Conditioning Field, X; References; 6 Hysteretic Elastic Elements; 6.1 Finite Displacement Elastic Elements; Quasistatic Response; 6.1.1 Finite Displacement Elastic Elements: The Model; 6.1.2 Finite Displacement Elastic Element: Implementing the Model; 6.2 Finite Displacement Elastic Elements: Inversion; 6.3 Finite Displacement Elastic Elements: Dynamic Response; 6.3.1 Finite Displacement Elastic Element: Resonant Bar. , 6.3.2 Finite Displacement Elastic Element: Wave Mixing6.4 Models with Hysteresis; 6.5 Summary; 6.6 Models with Hysteresis, Detail; 6.6.1 Hertzian Contacts; 6.6.2 The Masing Rules; 6.6.3 The Endochronic Formalism; References; 7 The Dynamics of Elastic Systems; Fast and Slow; 7.1 Fast/Slow Linear Dynamics; 7.1.1 Quasistatic Response; 7.1.2 AC Response; 7.2 Fast Nonlinear Dynamics; 7.3 Auxiliary Fields and Slow Dynamics; 7.3.1 X = The Conditioning Field; 7.3.2 X = Temperature; 7.4 Summary; References; 8 Q and Issues of Data Modeling/Analysis; 8.1 Attenuation in Linear Elastic Systems. , 8.1.1 Wave Vector Dispersion.
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  • 2
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 437 (2005), S. 871-874 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The 1992 magnitude 7.3 Landers earthquake triggered an exceptional number of additional earthquakes within California and as far north as Yellowstone and Montana. Since this observation, other large earthquakes have been shown to induce dynamic triggering at remote distances—for example, ...
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Berkeley, Calif. : Berkeley Electronic Press (now: De Gruyter)
    Topics in economic analysis & policy 4.2004, 1, art3 
    ISSN: 1538-0653
    Source: Berkeley Electronic Press Academic Journals
    Topics: Economics
    Notes: We consider a computational equilibrium model of spatially differentiated Bertrand competition and apply it to merger analysis. Two pricing paradigms are studied: one where firms cannot price discriminate among customers and one where firms can. The model encompasses many details that make it highly realistic. A detailed example illustrates several insights into merger analysis that are not readily apparent through traditional means. The most important of these is that merger of substitute products under Bertrand price competition need not result in a price increase.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical prospecting 38 (1990), S. 0 
    ISSN: 1365-2478
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Physics
    Notes: Conversion of borehole Stoneley waves to channel waves was observed in data from a seismic cross-borehole experiment conducted between wellbores penetrating a thin coal layer at 2022 m depth, near Rifle, Colorado. Traveltime moveout observations show that borehole Stoneley waves underwent partial conversion to channel waves at the coal layer. The channel waves were detected directly in an adjacent borehole 35 m away at receiver positions within the coal. Stoneley waves, subsequently produced by partial conversion of channel waves, were also detected at receiver positions located up to 50 m above and below the coal layer in the adjacent borehole. We infer the channel wave to be the first-higher Rayleigh mode by comparing the observed group velocity with theoretically derived dispersion curves. Identifying the conversion between borehole and stratigraphically guided waves is significant because coal penetrated by multiple wells may be detected without placing a transmitter or receiver in the coal itself.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Macmillan Magazines Ltd.
    Nature 390 (1997), S. 599-602 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It has been known since at least 1898 (ref. 1) that sediments can amplify earthquake ground motion relative to bedrock. For the weak ground motion accompanying small earthquakes, the amplification due to sediments is well understood in terms of linear elasticity (Hooke's law), ...
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1573-8477
    Keywords: speciation ; habitat-sympatric divergence ; divergent selection ; habitat preference ; assortative mating ; linkage disequilibrium ; penetrance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Three types of genes have been proposed to promote sympatric speciation: habitat preference genes, assortative mating genes and habitat-based fitness genes. Previous computer models have analysed these genes separately or in pairs. In this paper we describe a multilocus model in which genes of all three types are considered simultaneously. Our computer simulations show that speciation occurs in complete sympatry under a broad range of conditions. The process includes an initial diversification phase during which a slight amount of divergence occurs, a quasi-equilibrium phase of stasis during which little or no detectable divergence occurs and a completion phase during which divergence is dramatic and gene flow between diverging habitat morphs is rapidly eliminated. Habitat preference genes and habitat-specific fitness genes become associated when assortative mating occurs due to habitat preference, but interbreeding between individuals adapted to different habitats occurs unless habitat preference is almost error free. However, ‘nonhabitat assortative mating’, when coupled with habitat preference can eliminate this interbreeding. Even when several loci contribute to the probability of expression of non-habitat assortative mating and the contributions of individual loci are small, gene flow between diverging portions of the population can terminate within less than 1000 generations.
    Type of Medium: Electronic Resource
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  • 8
    Publication Date: 2016-07-18
    Description: Earth tides modulate tremor and low-frequency earthquakes (LFEs) on faults in the vicinity of the brittle−ductile (seismic−aseismic) transition. The response to the tidal stress carries otherwise inaccessible information about fault strength and rheology. Here, we analyze the LFE response to the fortnightly tide, which modulates the amplitude of the daily tidal stress over a 14-d cycle. LFE rate is highest during the waxing fortnightly tide, with LFEs most strongly promoted when the daily stress exceeds the previous peak stress by the widest margin. This pattern implies a threshold failure process, with slip initiated when stress exceeds the local fault strength. Variations in sensitivity to the fortnightly modulation may reflect the degree of stress concentration on LFE-producing brittle asperities embedded within an otherwise aseismic fault.
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
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  • 9
    Publication Date: 1999-04-01
    Print ISSN: 0031-9228
    Electronic ISSN: 1945-0699
    Topics: Physics
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  • 10
    Publication Date: 2019-07-26
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
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