Vanadium isotope ratios (51V/50V) have potential to provide information about changes in past ocean oxygen contents. In particular, V isotopes may find utility in tracing variations at non-zero oxygen concentrations because the redox couple that controls V elemental and isotopic abundances in seawater (vanadate-vanadyl) appears to operate around 10M O2. This characteristic sets V isotopes apart from many other metal isotope redox proxies that require more reducing conditions to register significant changes in their isotope budgets. The oxygen abundance sensitivity range of V isotopes suggests that this paleoproxy could be particularly useful in tracing marine oxygenation changes throughout the Phanerozoic and potentially beyond.

With the power and range of modern pulse spectrometers the compass of NMR spec troscopy is now very large for a single book-but we have undertaken this. Our book covers the Periodic Table as multinuclear spectrometers do, and introductory chapters are devoted to the essentials of the NMR experiment and its products. Primary products are chemical shifts (including anisotropies), spin-spin coupling constants, and relaxation times; the ultimate product is a knowledge of content and constitution, dynamic as well as static. Our province is chemical and biochemical rather than physical or technical; only passing reference is made to metallic solids or unstable species, or to practical NMR spectroscopy. Our aim is depth as well as breadth, to explain the fundamental processes, whether of nuclear magnetic shielding, spin-spin coupling, relaxation, or the multiple pulse sequences that have allowed the development of high-resolution studies of solids, multidimensional NMR spectroscopy, techniques for sensitivity enhancement, and so on. This book therefore combines the functions of advanced textbook and reference book. For reasonably comprehensive coverage in a single volume we have sum marized the information in tables and charts, and included all leading references.

Vanadium: Extraction, Manufacturing and Applications offers systematic coverage of the state-of-the-art in research and development of vanadium. Five chapters cover the basic background of vanadium, including extraction, applications, and the development of vanadium in industry and manufacturing, with a focus on industrial Panzhihua in China, which has one of the largest reserves of vanadium in the world. Based on the author's 30+ years of experience in vanadium-based materials, including in industrial development, this book provides a solution for understanding the nature, sourcing, manufacture, and uses of vanadium in high-tech industry. Vanadium is critical to high-tech industry, and is used as a catalyst and as a functional material. It has applications including in high-stress alloys, batteries and supercapacitors, and catalysts. Research on vanadium has accelerated rapidly in scope and depth in recent years. - Covers the different vanadium extraction processes - Describes the configuration of industry relating to vanadium, focusing on products and processes - Details vanadium applications in technology and in relation to particular product categories - Considers the case of vanadium resource shortages, and the industry response - Provides the necessary background to the theory, practice, technology, and manufacture of vanadium in contemporary industry

Contains the terminology to be used for subject description ... for the preparation of INIS [International Nucler Informtion System] input by national and regional centres.