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1. |
Record Nr. |
UNISALENTO991001316849707536 |
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Autore |
Nietzsche, Friedrich |
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Titolo |
Ditirambi di Dioniso e poesie postume : autunno 1888 Friedrich Nietzsche ; versioni di Giorgio Colli |
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Pubbl/distr/stampa |
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Descrizione fisica |
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Collana |
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Piccola biblioteca Adelphi |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Nietzsche, Friedrich - Opere |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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2. |
Record Nr. |
UNINA9911006653103321 |
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Titolo |
Three-dimensional electromagnetics : proceedings of the second international symposium / / edited by Michael S. Zhdanov and Philip E. Wannamaker |
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Pubbl/distr/stampa |
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Amsterdam ; ; New York, : Elsevier, 2002 |
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ISBN |
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1-281-02732-4 |
9786611027322 |
0-08-054299-9 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (305 p.) |
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Collana |
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Methods in geochemistry and geophysics, , 0076-6895 ; ; 35 |
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Altri autori (Persone) |
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ZhdanovMichael S |
WannamakerP. E (Philip E.) |
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Disciplina |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Includes bibliographical references and indexes. |
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Nota di contenuto |
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Front Cover; Three-Dimensional Electromagaetics; Copyright Page; CONTENTS; Preface; Part I: 3-D EM Modeling; CHAPTER 1. AN INTEGRAL EQUATION SOLUTION TO THE GEOPHYSICAL ELECTROMAGNETIC FORWARD-MODELLING PROBLEM; 1. Introduction; 2. The Integral Equation; 3. Numerical Solution - Galerkin Approach; 4. Edge Element Basis Vectors; 5. The Green's Functions - Part I; 6. Evaluation of the Integrals; 7. The Green's Functions - Part II; 8. Examples; 9. Computational Efficiency; 10. Conclusions; References; CHAPTER 2. COMPRESSION IN 3-D INTEGRAL EQUATION MODELING; 1. Introduction |
2. Forward Modeling with 3-D Integral Equations3. Compression Matrix; 4. Compression in Three Dimensions; 5. Compression as Preconditioner to the Integral Equation; 6. The ILU Preconditioned Conjugate Gradient Method; 7. Modeling Examples; 8. Conclusions; References; CHAPTER 3. MODELLING ELECTROMAGNETIC FIELDS IN A 3D SPHERICAL EARTH USING A FAST INTEGRAL EQUATION APPROACH; 1. Introduction; 2. Governing Equations; 3. Solution Verification; 4. Concluding Remarks; Appendix A. Dyadic Green's functions of radially symmetric section; References |
CHAPTER 4. MODELLING INDUCTION LOG RESPONSES IN 3D GEOMETRIES USING A FAST INTEGRAL EQUATION APPROACH1. Introduction; 2. Theory; 3. Computational Load; 4. Numerical Examples; 5. Concluding Remarks; References; CHAPTER 5. NONLINEAR APPROXIMATIONS FOR ELECTROMAGNETIC SCATTERING FROM ELECTRICAL AND MAGNETIC INHOMOGENEITIES; 1. Introduction; 2. Integral Equation Formulation; 3. Born Approximation; 4. Localized Approximation; 5. Quasi-Linear Approximation; 6. Quasi-Analytical Approximation; 7. Numerical Results and Validation; 8. Conclusions; Appendix A. Quasi-Analytical One-Dimensional Solution |
ReferencesCHAPTER 6. THREE-DIMENSIONAL MODELING CONSIDERING THE TOPOGRAPHY FOR THE CASE OF THE TIME-DOMAIN ELECTROMAGNETIC METHOD; 1. Introduction; 2. Theory; 3. Numerical Checks; 4. Numerical Examples; 5. Conclusions; Appendix A. Correspondence of the Differential Coefficients between the Physical Domain and the Computational Domain; Appendix B. Derivation of the Finite-Difference Equations; References; CHAPTER 7. REDUCED-ORDER MODELING OF TRANSIENT DIFFUSIVE ELECTROMAGNETIC FIELDS; 1. Introduction; 2. Basic Equations; 3. Reduced-Order Models for the Diffusive Electromagnetic Field |
4. Numerical Results5. Conclusions; Appendix A. The Lanczos Algorithm for Skew Symmetric Matrices; References; Part II: 3-D EM Inversion; CHAPTER 8. THREE-DIMENSIONAL MAGNETOTELLURIC MODELING AND INVERSION: APPLICATION TO SUB-SALT IMAGING; 1. Introduction; 2. The 3D MT Forward Problem; 3. The 3D MT Inverse Problem; 4. Marine MT Resolution Study; 5. Conclusions; Appendix A; References; CHAPTER 9. 2-D INVERSION OF FREQUENCY-DOMAIN EM DATA CAUSED BY A 3-D SOURCE; 1. Introduction; 2. Inversion Theory; 3. Synthetic Data Example; 4. Conclusions |
Appendix A. Expectation of Objective Function in Constrained Linearized Least- Squares Method |
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Sommario/riassunto |
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""3-D modeling and inversion is a reality, and not an illusion."" This is the clear conclusion of the Second International Symposium on Three-Dimensional Electromagnetics held at the University of Utah in 1999. Containing papers submitted by 36 authors, this volume, by the sheer number of works, their diversity, and the truly international character of the efforts attests to the vigor with which the problems of the field are pursued today. The papers in this book are grouped in three parts: 3-D EM modeling; 3-D EM inversion; and 3-D EM in practice. They cover a wide range of to |
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