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1. |
Record Nr. |
UNICASUTO1101261 |
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Autore |
Too, Yun Lee |
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Titolo |
The idea of the library in the ancient world / Yun Lee Too |
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Pubbl/distr/stampa |
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Oxford, : Oxford University press, 2010 |
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ISBN |
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Descrizione fisica |
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Disciplina |
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Soggetti |
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Biblioteche - Antichità classiche |
Biblioteche - Antichita |
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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. |
UNINA9910148877903321 |
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Autore |
Ruiz Don Miguel |
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Titolo |
Toltec Art of Life and Death |
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Pubbl/distr/stampa |
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ISBN |
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Disciplina |
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Lingua di pubblicazione |
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Formato |
Musica |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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Internationally bestselling author of The Four Agreements, Don Miguel Ruiz gives us a mystical tour of his life and calling as a "Nagual" in this gripping spiritual and autobiographical teaching novel. Internationally bestselling author Don Miguel Ruiz became a trusted and well-known |
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teacher of spiritual wisdom through his popular works such as The Four Agreements, Mastery of Love, and The Voice of Knowledge. Now he is ready to take his students on a new journey, inviting us to confront and learn a deeper level of spiritual teaching and wisdom than he has attempted before. Using the occasion of his heart attack in 2002 and subsequent coma where it was not clear he would live, Ruiz and his cowriter Barbara Emrys have created an enchanting and mystical tale of the internal spiritual struggle Ruiz undergoes as his body lies unconscious. He must choose whether or not to come back to life. Re-experiencing the people, ideas, and encounters that have shaped him through his childhood and career, we encounter the challenges of "the way of the Nagual,"--a person who is called to teach and embody the deepest spiritual truths of the universe. In the tradition of Carlos Castaneda and other shamans who have come before him, Ruiz invites us to grapple with truths that are beyond what can be put into words but nonetheless promise to transform everything we know. |
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3. |
Record Nr. |
UNINA9911006972303321 |
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Autore |
Schuster Gerard Thomas <1950-> |
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Titolo |
Seismic inversion / / Gerard T. Schuster |
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Pubbl/distr/stampa |
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: SEG (Society of Exploration Geophysicists) |
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ISBN |
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1-56080-342-8 |
1-5231-1618-8 |
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Disciplina |
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Soggetti |
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Seismic traveltime inversion |
Seismic reflection method - Deconvolution |
Seismic tomography |
Inversion (Geophysics) |
Seismology - Mathematics |
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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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Nota di contenuto |
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Part I. Iterative optimization methods -- 1. Introduction to seismic |
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inversion -- 2. Introduction to gradient optimization -- 3. Steepest-descent method -- 4. Conjugate-gradient and quasi-Newton methods. |
Part II. Traveltime tomography -- 5. Raypath traveltime tomography -- 6. Traveltime tomography : assessing model accuracy. |
Part III. Numerical modeling -- 7. Traveltime calculation by solution of the eikonal equation -- 8. Numerical solutions to the wave equation -- 9. The viscoacoustic wave equation. |
Part IV. Reflection migration -- 10. Forward and adjoint modeling using Green's functions -- 11. Reverse time migration -- 12. Wavepaths -- 13. Generalized diffraction-stack migration and filtering of coherent noise -- 14. Resolution limits for wave equation imaging. |
Part V. Least-squares migration -- 15. Iterative least-squares migration -- 16. Viscoacoustic least-squares migration -- 17. Least-squares migration filtering -- 18. Migration deconvolution. |
Part VI. Waveform inversion -- 19. Acoustic waveform inversion and its numerical implementation -- 20. Wave-equation inversion of skeletonized data -- 21. Acoustic waveform inversion : case histories -- 22. Elastic and viscoelastic full-waveform inversion -- 23. Vertical transverse isotropy FWI. |
Part VII. Image-domain inversion -- 24. Classical migration velocity analysis -- 25. Generalized differential semblance optimization -- 26. Generalized image-domain inversion. |
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Sommario/riassunto |
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This book describes the theory and practice of inverting seismic data for the subsurface rock properties of the earth. The primary application is for inverting reflection and/or transmission data from engineering or exploration surveys, but the methods described also can be used for earthquake studies. This book is written for scientists and advanced students in engineering, earth sciences, and physics. The reader should have some familiarity with certain aspects of numerical computation, such as finite-difference solutions to partial differential equations, numerical linear algebra, and the basic physics of wave propagation (e.g., Snell's law and ray tracing). For those not familiar with the terminology and methods of seismic exploration, a brief introduction is provided in the Appendix of Chapter 1. Computational labs are provided for most of the chapters, and some field data labs are given as well. Matlab and Fortran labs at the end of some chapters are used to deepen the reader's understanding of the concepts and their implementation. Such exercises are introduced early and geophysical applications are presented in every chapter. For the non-geophysicist, geophysical concepts are introduced with intuitive arguments, and their description by rigorous theory is deferred to later chapters.-- |
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