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EBookClubs

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Book U S Geological Survey Circular

Download or read book U S Geological Survey Circular written by and published by . This book was released on 1984 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book 1988 Annual Report on Alaska s Mineral Resources

Download or read book 1988 Annual Report on Alaska s Mineral Resources written by and published by . This book was released on 1988 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Marine Affairs Bibliography

Download or read book Marine Affairs Bibliography written by and published by . This book was released on 1991 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Disposition of High Level Waste and Spent Nuclear Fuel

Download or read book Disposition of High Level Waste and Spent Nuclear Fuel written by National Research Council and published by National Academies Press. This book was released on 2001-07-05 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focused attention by world leaders is needed to address the substantial challenges posed by disposal of spent nuclear fuel from reactors and high-level radioactive waste from processing such fuel. The biggest challenges in achieving safe and secure storage and permanent waste disposal are societal, although technical challenges remain. Disposition of radioactive wastes in a deep geological repository is a sound approach as long as it progresses through a stepwise decision-making process that takes advantage of technical advances, public participation, and international cooperation. Written for concerned citizens as well as policymakers, this book was sponsored by the U.S. Department of Energy, U.S. Nuclear Regulatory Commission, and waste management organizations in eight other countries.

Book Bibliography of Technical Reports 1987

Download or read book Bibliography of Technical Reports 1987 written by and published by . This book was released on 1988 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: The technical reports prepared by the Woods Hole Oceanographic Institution in 1987 are listed in this bibliography.

Book Government Reports Announcements Index

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1991-04 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Exact Reconstruction of Ocean Bottom Velocity Profiles from Monochromatic Scattering Data

Download or read book Exact Reconstruction of Ocean Bottom Velocity Profiles from Monochromatic Scattering Data written by André A. Merab and published by . This book was released on 1988 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the theoretical and computational underpinnings of a novel approach to the determination of the acoustic parameters of the ocean bottom using a monochromatic source. The problem is shown to be equivalent to that of the reconstruction of the potential in a Schrodinger equation from the knowledge of the plane-wave reflection coefficient as a function of vertical wavenumber, r(kz) for all real positive k z. First, the reflection coefficient is shown to decay asymptotically at least as fast as (1/kz2) for large kz and is therefore inteqrable. The Gelfand-Levitan inversion procedure is extended to include the case of basement velocity higher than the velocity of sound in water. The neglect of bound states is shown to be justified in both clayey silt and silty clay at the 220 Hz frequency of operation. Three methods for the numerical solution of the integral equation are investigated. The first one is an "Improved Born approximation" wherein the solution is given as a series expansion the first term of which is the Born approximation while the second term represents a substantial and yet easy to implement improvement over Born. The two other methods are based on a discretization of the Gelfand-Levitan integral equation, and both avoid a matrix inversion: one by employing a recursive procedure, and the other by coupling the Gelfand-Levitan equation with a partial differential equation. Bounds are obtained on errors in the solution due either to discretization or to data inaccuracy. These methods are tested on synthetic data obtained from known geoacoustic models of the ocean bottom. Results are found to be very accurate particularly at the top of the sediment layer with resolution of less than the wavelength of the acoustic source in the water. Several effects are investigated, such as sampling, attenuation, and noise. Also examined is the gradual restriction of the reflection coefficient to a finite range of vertical wave numbers and the consequent progressive deterioration of the reconstruction. The analysis shows how to reconstruct velocity profiles in the presence of density variation when the experiment is conducted at two frequencies. Our results provide a good understanding of the issues involved in conducting a monochromatic deep ocean bottom experiment and constitute a promising technique for processing the experimental data when it becomes available.

Book Disposition of High Level Radioactive Waste Through Geological Isolation

Download or read book Disposition of High Level Radioactive Waste Through Geological Isolation written by National Research Council and published by National Academies Press. This book was released on 1999-10-07 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the next several years, decisions are expected to be made in several countries on the further development and implementation of the geological disposition option. The Board on Radioactive Waste Management (BRWM) of the U.S. National Academies believes that informed and reasoned discussion of relevant scientific, engineering and social issues can-and should-play a constructive role in the decision process by providing information to decision makers on relevant technical and policy issues. A BRWM-initiated project including a workshop at Irvine, California on November 4-5, 1999, and subsequent National Academies' report to be published in spring, 2000, are intended to provide such information to national policy makers both in the U.S. and abroad. To inform national policies, it is essential that experts from the physical, geological, and engineering sciences, and experts from the policy and social science communities work together. Some national programs have involved social science and policy experts from the beginning, while other programs have only recently recognized the importance of this collaboration. An important goal of the November workshop is to facilitate dialogue between these communities, as well as to encourage the sharing of experiences from many national programs. The workshop steering committee has prepared this discussion for participants at the workshop. It should elicit critical comments and help identify topics requiring in-depth discussion at the workshop. It is not intended as a statement of findings, conclusions, or recommendations. It is rather intended as a vehicle for stimulating dialogue among the workshop participants. Out of that dialogue will emerge the findings, conclusions, and recommendations of the National Academies' report.

Book Energy Research Abstracts

Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Energy Abstracts for Policy Analysis

Download or read book Energy Abstracts for Policy Analysis written by and published by . This book was released on 1989 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Radioactive Waste Management

Download or read book Radioactive Waste Management written by and published by . This book was released on 1981 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: