Extractive Metallurgy of Niobium
Extractive Metallurgy of Niobium

Author: A.K. Suri

Publisher: Routledge

Published: 2017-11-13

Total Pages: 272

ISBN-13: 1351448978

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The growth and development witnessed today in modern science, engineering, and technology owes a heavy debt to the rare, refractory, and reactive metals group, of which niobium is a member. Extractive Metallurgy of Niobium presents a vivid account of the metal through its comprehensive discussions of properties and applications, resources and resource processing, chemical processing and compound preparation, metal extraction, and refining and consolidation. Typical flow sheets adopted in some leading niobium-producing countries for the beneficiation of various niobium sources are presented, and various chemical processes for producing pure forms of niobium intermediates such as chloride, fluoride, and oxide are discussed. The book also explains how to liberate the metal from its intermediates and describes the physico-chemical principles involved. It is an excellent reference for chemical metallurgists, hydrometallurgists, extraction and process metallurgists, and minerals processors. It is also valuable to a wide variety of scientists, engineers, technologists, and students interested in the topic.

Advanced Soil Mechanics, Second Edition
Advanced Soil Mechanics, Second Edition

Author: Braja M. Das

Publisher: CRC Press

Published: 1997-07-01

Total Pages: 457

ISBN-13: 9781560325611

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This revised edition is restructured with additional text and extensive illustrations, along with developments in geotechnical literature. Among the topics included are: soil aggregates, stresses in soil mass, pore water pressure due to undrained loading, permeability and seepage, consolidation, shear strength of soils, and evaluation of soil settlement. The text presents mathematical derivations as well as numerous worked-out examples.

Vajrayogini
Vajrayogini

Author: Elizabeth English

Publisher: Simon and Schuster

Published: 2013-02-08

Total Pages: 607

ISBN-13: 0861716574

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Vajrayogini is a tantric goddess from the highest class of Buddhist tantras who manifests the ultimate development of wisdom and compassion. Her practice is prevalent today among practitioners of Tibetan Buddhism. This ground-breaking book delves into the origins of Vajrayogini, charting her evolution in India and examining her roots in the Cakrasamvara tantra and in Indian tradition relating to siva. The focus of this work is the Guhyasamayasadhanamala, a collection of forty-six sadhanas, or practice texts. Written on palm leaves in Sanskrit and preserved since the twelfth century, this diverse collection, composed by various authors, reveals a multitude of forms of the goddess, each of which is described and illustrated here. One of the sadhanas, the Vajravarahi Sadhana by Umapatideva, depicts Vajrayogini at the center of a mandala of thirty-seven different goddesses, and is here presented in full translation alongside a Sanskrit edition. Elizabeth English provides extensive explanation and annotation of this representative text. Sixteen pages of stunning color plates not only enhance the study but bring the goddess to life.