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  • 1
    Online-Ressource
    Online-Ressource
    Fluid Dynamics and Dynamos in Astrophysics and Geophysics. (2005)
    Milton :Taylor & Francis Group,
    Details
    Schlagwort(e): Fluid dynamics. ; Dynamo theory (Cosmic physics). ; Magnetohydrodynamics. ; Electronic books.
    Beschreibung / Inhaltsverzeichnis: The increasing power of computer resources along with great improvements in observational data have led to rapid advances in astrophysical fluid dynamics in recent years. Bringing together geophysicists, astrophysicists, and experimenters, this book reviews the current status of the field and provides balanced coverage of all three of these areas. Magnetohydrodynamics (MHD), including MHD turbulence, the dynamo problem, and some unique laboratory experiments, receives the particular attention of many of the book's international contributors. The editors illustrate the symbiotic relation between theory and observation throughout the book.
    Materialart: Online-Ressource
    Seiten: 1 online resource (477 pages)
    Ausgabe: 1st ed.
    ISBN: 9780203017692
    Serie: The Fluid Mechanics of Astrophysics and Geophysics Series
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=294803
    DDC: 523.01/886
    Sprache: Englisch
    Anmerkung: Front cover -- Contents -- Contributors -- Preface -- Acknowledgments -- Chapter 1. Accretion discs -- Chapter 2. Discs with MHD turbulence and their response to orbiting planets -- Chapter 3. Mixing at the surface of white dwarf stars -- Chapter 4. Pulsar magnetospheres -- Chapter 5. Magnetic fields in galaxies -- Chapter 6. Self-consistent mean field electrodynamics in two and three dimensions -- Chapter 7. The solar tachocline: Formation, stability and its role in the solar dynamo -- Chapter 8. Magnetoconvection -- Chapter 9. Alfv´en waves within the Earth's core -- Chapter 10. Turbulence models and plane layer dynamos -- Chapter 11. Planetary and stellar dynamos: challenges for next generation models -- Chapter 12. Convection in rotating spherical fluid shells and its dynamo states -- Chapter 13. Laboratory experiments on liquid metal dynamos and liquid metal MHD turbulence -- Index -- Back cover.
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  • 2
    Online-Ressource
    Online-Ressource
    Routes of Power : Energy and Modern America. (2014)
    Cambridge :Harvard University Press,
    Details
    Schlagwort(e): Electronic books.
    Beschreibung / Inhaltsverzeichnis: The fossil fuel revolution is usually a tale of advances in energy production. Christopher Jones tells a tale of advances in energy access--canals, pipelines, wires delivering cheap, abundant power to cities at a distance from production sites. Between 1820 and 1930 these new transportation networks set the U.S. on a path to fossil fuel dependence.
    Materialart: Online-Ressource
    Seiten: 1 online resource (321 pages)
    Ausgabe: 1st ed.
    ISBN: 9780674419612
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=3301458
    DDC: 333.790973
    Sprache: Englisch
    Anmerkung: Intro -- Contents -- Introduction -- 1. Coal's Liquid Pathways -- 2. The Anthracite Energy Transition -- 3. Pennsylvania's Petroleum Boom -- 4. Pipelines and Power -- 5. Taming the Susquehanna River -- 6. The Electrification of America -- Conclusion -- Notes -- Acknowledgments -- Index.
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  • 3
    Online-Ressource
    Online-Ressource
    Nanostructured Catalysts. (2003)
    New York, NY :Springer,
    Details
    Schlagwort(e): Catalysts. ; Electronic books.
    Materialart: Online-Ressource
    Seiten: 1 online resource (340 pages)
    Ausgabe: 1st ed.
    ISBN: 9780387306414
    Serie: Nanostructure Science and Technology Series
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=3072842
    DDC: 660/.2995
    Sprache: Englisch
    Anmerkung: Nanostructured Catalysts -- Editor's page -- Copyright -- CONTRIBUTORS -- FOREWORD -- PREFACE -- CONTENTS -- Chapter 1 MULTIFUNCTIONAL ACTIVE SITES ON SILICA SURFACES BY GRAFTING OF METAL COMPLEXES -- Chapter 2 NANOSTRUCTURED RARE EARTH CATALYSTS VIA ADVANCED SURFACE GRAFTING -- Chapter 3 SILSESQUIOXANES: ADVANCED MODEL SUPPORTS IN DEVELOPING SILICA-IMMOBILIZED POLYMERIZATION CATALYSTS -- Chapter 4 THEORETICAL MODELS OF ACTIVE SITES: GENERAL CONSIDERATIONS AND APPLICATION TO THE STUDY OF PHILLIPS-TYPE Cr/SILICA CATALYSTS FOR ETHYLENEPOLYMERIZATION -- Chapter 5 LATE TRANSITION METAL COMPLEXES IMMOBILIZED ON STRUCTURED SURFACES AS CATALYSTS FOR HYDROGENATION ANDOXIDATION REACTIONS -- Chapter 6 DESIGN OF CHlRAL HYBRID ORGANIC-INORGANIC MESOPOROUS MATERIALS AS ENANTIOSELECTIVE EPOXIDATION AND ALKYLATION CATALYSTS -- Chapter 7 CHIRAL NANOSTRUCTURES AT METAL SURFACES: A NEW VIEWPOINT ON ENANTIOSELECTIVE CATALYSIS -- Chapter 8 ON THE STRUCTURE OF COBALT-SUBSTITUTED ALUMINOPHOSPHATE CATALYSTS AND THEIR CATALYTIC PERFORMANCE -- Chapter 9 CATALYTIC ACTIVITY OF Pt AND TUNGSTOPHOSPHORIC ACID SUPPORTED ON MCM-41 FOR THE REDUCTION OF NO -- Chapter 10 POLYMERIZATION WITH MESOPOROUS SILICATES -- Chapter 11 DESIGNING POROUS SOLIDS OVER MULTIPLE PORE SIZE REGIMES -- Chapter 12 STRATEGIES FOR THE CONTROL OF POROSITY AROUND ORGANIC ACTIVE SITES IN INORGANIC MATRICES -- Chapter 13 STRATEGIES FOR THE DESIGN AND SYNTHESIS OF HYBRID MULTIFUNCTIONAL NANOPOROUS MATERIALS -- Chapter 14 QUANTITATIVE RELATIONS BETWEEN LIQUID PHASE ADSORPTION AND CATALYSIS -- INDEX.
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  • 4
    Online-Ressource
    Online-Ressource
    Mathematical Paradigms of Climate Science. (2016)
    Cham :Springer International Publishing AG,
    Details
    Schlagwort(e): Systems theory. ; Electronic books.
    Materialart: Online-Ressource
    Seiten: 1 online resource (230 pages)
    Ausgabe: 1st ed.
    ISBN: 9783319390925
    Serie: Springer INdAM Series ; v.15
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=4734202
    DDC: 551.60151
    Sprache: Englisch
    Anmerkung: Intro -- Preface -- Contents -- Part I Core Climate Issues -- A Mathematical Perspective on Microbial Processes in Earth's Biogeochemical Cycles -- 1 Introduction -- 2 Microbially Mediated Biogeochemical Cycling: The Challenge of Scale -- 3 Microbially Mediated Biogeochemical Cycling: The Challenge of Complexity -- 4 Merging Data and Models: The Challenge of Heterogeneous and Sparse Observations -- 5 Summary and Mathematical Challenges -- References -- Turbulence, Horizontal Convection, and the Ocean's Meridional Overturning Circulation -- 1 On the Defining Properties of Turbulence -- 2 Horizontal Convection -- 3 A Brief Survey of Other Results on Horizontal Convection -- 4 Implications for Oceanography and Climate -- References -- Part II Mathematical Techniques -- Source Reconstruction by Partial Measurements for a Class of Hyperbolic Systems in Cascade -- 1 Introduction -- 2 Preliminaries and Set-Up -- 2.1 Notation -- 2.2 Hidden Regularity and Observability Assumptions for the Scalar Wave Equation -- 2.3 Geometric Assumptions -- 2.3.1 Multiplier Geometric Conditions -- 2.3.2 Geometric Control Conditions -- 2.4 Observability Results for Homogeneous Systems -- 3 Well-Posedness -- 4 Stability Estimates for the Inverse Source Problem -- 5 A Negative Result -- References -- Remarks on Stochastic Navier-Stokes Equations -- 1 Introduction -- 2 Preliminary: The Deterministic Navier-Stokes Equations -- 3 Stochastic Perturbations -- 3.1 Motivations for Additive Noise -- 3.2 Motivations for Transport Noise -- 4 Remarks on Well-Posedness -- 5 Practical Issues -- 5.1 Perturbative Approach by Girsanov (Cameron-Martin) -- 5.2 Perturbative Approach by Kolmogorov Equation -- References -- Remarks on Long Time Versus Steady State Optimal Control -- 1 Introduction -- 2 Preliminaries on the Linear Heat Equation -- 3 Local Results for the Semilinear Heat Equation. , 3.1 The System of Optimality -- 3.2 Small Solutions -- 4 Time Independent Controls by Γ-Convergence -- 5 Further Comments and Open Problems -- References -- Part III Paleoclimate -- Effects of Additive Noise on the Stability of Glacial Cycles -- 1 Introduction -- 2 Methods -- 3 Results -- 3.1 Dispersions in Each Model -- 3.2 Order in Dispersions -- 3.3 Implication for Ice Ages -- 4 Concluding Discussion -- Appendix -- References -- On the Calibration of Lévy Driven Time Series with Coupling Distances and an Application in Paleoclimate -- 1 Introduction -- 2 Lévy Processes and Coupling Distances -- 2.1 Lévy Processes -- 2.2 Coupling Distances Between Lévy Measures -- 3 Statistical Considerations -- 3.1 Basic Notions -- 3.2 Quantiles -- 3.3 The Empirical Wasserstein Distance -- 3.4 Asymptotic Distribution and Rate of Convergence -- 4 The Procedure in Detail -- 5 Case Study -- 5.1 Concrete Formulas -- 5.2 Simulations -- 5.3 Paleoclimatic Time Series -- References -- Part IV Data Assimilation -- Data Assimilation for Geophysical Fluids: The Diffusive Back and Forth Nudging -- 1 Introduction -- 2 Variational Method: 4D-VAR -- 2.1 Model and Observations -- 2.2 Cost Function -- 2.3 Gradient Step -- 2.4 Optimality System -- 2.5 4D-Var Algorithm Computation -- 2.6 Computational Issues -- 3 Sequential Methods: Kalman Filter -- 3.1 The Extended Kalman Filter -- 3.2 Ensemble Kalman Filter -- 4 Back and Forth Nudging Schemes: BFN and Diffusive BFN (DBFN) -- 4.1 The Nudging Algorithm -- 4.2 Backward Nudging -- 4.3 The BFN Algorithm -- 4.4 DBFN: Diffusive Back and Forth Nudging Algorithm -- 4.5 Theoretical Considerations -- 5 Numerical Results on a 2D Shallow-Water Model -- 5.1 Description of the Model -- 5.2 Experimental Setup -- 5.3 Convergence of DBFN -- 5.4 Comparison Between BFN, DBFN and 4DVAR. , 5.5 Sensitivity of the BFN and DBFN with Respect to the Diffusion Coefficient -- 5.6 Sensitivity of the BFN and DBFN with Respect to Observation Noise -- 6 Numerical Results on a 3D Primitive Equation Ocean Model -- 6.1 Description of the Model -- 6.2 Model Configuration -- 6.3 Experimental Setup -- 6.3.1 Model Aspects -- 6.3.2 Observation Network -- 6.4 Convergence of DBFN -- 6.5 Comparison Between DBFN and BFN -- 6.6 Concluding Remarks -- 7 Conclusion -- References -- Deterministic Treatment of Model Error in Geophysical Data Assimilation -- 1 Introduction -- 2 Formulation -- 2.1 General Description of Model Error Dynamics -- 2.2 Model Error Due to Parameter Uncertainties -- 3 Deterministic Model Error Treatment in the Extended Kalman Filter -- 3.1 Short Time Extended Kalman Filter: ST-EKF -- 3.1.1 Numerical Results with ST-EKF: Error Due to Unresolved Scale -- 3.2 Short Time Augmented Extended Kalman Filter: ST-AEKF -- 3.2.1 Numerical Results with ST-EKF and ST-AEKF -- 4 Deterministic Model Error Treatment in Variational Data Assimilation -- 4.1 Numerical Results with ST-w4DVar -- 5 Discussion -- References -- Decreasing Flow Uncertainty in Bayesian Inverse Problems Through Lagrangian Drifter Control -- 1 Introduction -- 2 Setup -- 3 Variance Reduction Using a Proof-of-Concept Control -- 4 Posterior Informed Control -- 5 Conclusion -- References.
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  • 5
    Online-Ressource
    Online-Ressource
    Dynamical Systems : Lectures Given at the 2nd Session of the Centro Internazionale Matematico Estivo (C.I.M.E.) held in Montecatini Terme, Italy, June 13–22, 1994 (1995)
    Berlin, Heidelberg : Springer Berlin Heidelberg
    Details Verfügbarkeit
    Schlagwort(e): Global analysis (Mathematics) ; Systems theory ; Mathematics ; Mathematical optimization ; System theory. ; Control theory. ; Mathematical analysis. ; Calculus of variations. ; Analysis ; Calculus of Variations and Optimal Control Optimization ; Systems Theory, Control ; Mathematics ; Konferenzschrift 1994 ; Dynamisches System
    Beschreibung / Inhaltsverzeichnis: This volume contains the lecture notes written by the four principal speakers at the C.I.M.E. session on Dynamical Systems held at Montecatini, Italy in June 1994. The goal of the session was to illustrate how methods of dynamical systems can be applied to the study of ordinary and partial differential equations. Topics in random differential equations, singular perturbations, the Conley index theory, and non-linear PDEs were discussed. Readers interested in asymptotic behavior of solutions of ODEs and PDEs and familiar with basic notions of dynamical systems will wish to consult this text
    Materialart: Online-Ressource
    Seiten: Online-Ressource (VII, 336 p, online resource)
    ISBN: 9783540494157 , 9783540600473
    Serie: Lecture Notes in Mathematics 1609
    URL: https://doi.org/10.1007/BFb0095237
    URL: http://dx.doi.org/10.1007/BFb0095237
    URL: https://swbplus.bsz-bw.de/bsz047094532cov.jpg
    URL: https://zbmath.org/?q=an:0822.00008
    URL: http://www.gbv.de/dms/bowker/toc/9783540600473.pdf
    DOI: 10.1007/BFb0095237
    RVK:
    SI 850
    Sprache: Englisch
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  • 6
    Digitale Medien
    Digitale Medien
    A small optimal complete active space (CAS) for multiconfigurational spin tensor electron propagator method (MCSTEP) ionization potentials: Application to methane, acetylene, ethylene, and ethane (1997)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 107 (1997), S. 5088-5093 
    Details
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: The multiconfigurational spin tensor electron propagator method (MCSTEP) is specifically designed to provide accurate determination of the low-lying principal vertical ionization potentials (IP's) and electron affinities (EA's) of atoms and molecules. In this paper we modify and extend our definition of an "optimal" small complete active space (CAS) for MCSTEP calculations. We then use MCSTEP to determine the vertical principal ionization potentials (IP's) below 19 eV of the small organic molecules methane, acetylene, ethylene, and ethane. The calculations are done using the standard Dunning-core-valence pVDZ and pVTZ basis sets. The results are compared with experiments as well as with some other forefront theoretical methods. The MCSTEP IP's are in very good to excellent agreement with experimental IP's. © 1997 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.474871
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  • 7
    Digitale Medien
    Digitale Medien
    Preferential binding of the xeroderma pigmentosum group A complementing protein to damaged DNA (1993)
    s.l. : American Chemical Society
    Biochemistry 32 (1993), S. 12096-12104 
    Details
    ISSN: 1520-4995
    Quelle: ACS Legacy Archives
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/bi00096a021
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  • 8
    Digitale Medien
    Digitale Medien
    Synthesis and spectroscopic properties of some cyanophosphines (1971)
    s.l. : American Chemical Society
    Inorganic chemistry 10 (1971), S. 1536-1537 
    Details
    ISSN: 1520-510X
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ic50101a049
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  • 9
    Digitale Medien
    Digitale Medien
    Gaussian-1 theory of molecular energies for second-row compounds (1990)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 93 (1990), S. 2537-2545 
    Details
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: The Gaussian-1 theoretical procedure is extended and tested on compounds containing second-row atoms (Na–Cl). This is a composite procedure based on ab initio molecular orbital theory, utilizing large basis sets (including diffuse-sp, double-d, and f-polarization functions) and treating electron correlation by Møller–Plesset perturbation theory and by quadratic configuration interaction. Total atomization energies for a set of 24 species agree with accurate experimental data to an accuracy of better than 3 kcal/mol in most cases, SO2 being the notable exception. Similar agreement is achieved for ionization energies, electron affinities, and proton affinities. The method is used to assess experimental data for a number of other compounds having less accurate atomization energies.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.458892
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  • 10
    Digitale Medien
    Digitale Medien
    New 10- and 11-atom polyhedral metallocarboranes prepared by polyhedral contraction (1972)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 94 (1972), S. 8391-8399 
    Details
    ISSN: 1520-5126
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ja00779a018
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