Info
- Utilizzare la checkbox di selezione a fianco di ciascun documento per attivare le funzionalità di stampa, invio email, download nei formati disponibili del (i) record.
Electromagnetic methods in applied geophysics
| Electromagnetic methods in applied geophysics |
| Pubbl/distr/stampa | [Place of publication not identified], : Society of Exploration Geophysics, 1988 |
| Disciplina | 622/.153 |
| Collana | Investigations in geophysics Electromagnetic methods in applied geophysics |
| Soggetto topico |
Magnetic prospecting
Mechanical Engineering Engineering & Applied Sciences Mining Engineering |
| ISBN |
1-5231-1606-4
1-56080-263-4 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | v. 1. Theory. |
| Record Nr. | UNINA-9911004742603321 |
| [Place of publication not identified], : Society of Exploration Geophysics, 1988 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Three-dimensional electromagnetics : proceedings of the second international symposium / / edited by Michael S. Zhdanov and Philip E. Wannamaker
| Three-dimensional electromagnetics : proceedings of the second international symposium / / edited by Michael S. Zhdanov and Philip E. Wannamaker |
| Edizione | [1st ed.] |
| Pubbl/distr/stampa | Amsterdam ; ; New York, : Elsevier, 2002 |
| Descrizione fisica | 1 online resource (305 p.) |
| Disciplina | 622/.153 |
| Altri autori (Persone) |
ZhdanovMikhail Semenovich
WannamakerP. E (Philip E.) |
| Collana | Methods in geochemistry and geophysics |
| Soggetto topico | Magnetic prospecting |
| ISBN |
1-281-02732-4
9786611027322 0-08-054299-9 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
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 |
| Record Nr. | UNINA-9911006653103321 |
| Amsterdam ; ; New York, : Elsevier, 2002 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||