A Manual of Assaying


Book Description

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.







Prehistoric Gold in Europe


Book Description

Interest in the study of early European cultures is growing. These cultures have left us objects made of gold, other metals and ceramics. The advent of metal detectors, coupled with improved analytical techniques, has increased the number of findings of such objects enormously. Gold was used for economic and ceremonial purposes and thus the gold objects are an important key to our understanding of the social and political structures, as well as the technological achievements, of Bronze and Iron Age European societies. A correct interpretation of the information provided by gold and other metal objects requires the cooperation of experts in the fields of social, materials and natural science. Detailed investigation of gold deposits in Europe have revealed the composition and genesis of the deposits as sources of the metal. In Prehistoric Gold in Europe, a group of leading European geoscientists, metallurgists and archaeologists discuss the techniques of gold mining and metallurgy, the socioeconomic importance of gold as coinage and a symbol of wealth and status, and as an indicator of religious habits, as well as a mirror of trade and cultural relations mirrored by the distribution and types of gold objects in prehistoric times.










The School Journal


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Syzygy, Beauty


Book Description

“In Syzygy, Beauty, T Fleischmann re-imagines the essay, creating a spare little book that reads like a collection of prose poems.” (David Ulin, Los Angeles Times) In Syzygy, Beauty, T Fleischmann builds an essay of prose blocks, weaving together observations on art, the narrator’s construction of a house, and a direct address to a lover. Playing with scale and repetition, we are kept off-center, and therefore always looking, as the speaker leads us through an intimate relationship that is complicated and deepened by multiple partners, gender transitions, and itinerancy. “A complex, tightly wound (and wounded) cri de coeur that is simultaneously accessible and intensely, cryptically personal.” —Minneapolis Star-Tribune “T Fleischmann’s Syzygy, Beauty shimmers with confidence as it tours the surreal chaos of gender, art, and desire . . . I hail its weirdness, its ‘armpit frankess,’ its indelible portrait of occulted relation, and above all, its impeccable music.” —Maggie Nelson, author of The Argonauts “This distinctive debut traces ‘the past made alight by impact’ through a diverse set of sources: film and carpentry analogies; interior monologues; references to artists Méret Oppenheim, Man Ray, Grayson Perry, and Louise Bourgeois; gnostic texts; and personal, yet ambiguous, disclosures.” —ForeWord Reviews “At its most basic, this unusual and engaging book describes the ins-and-outs of an unorthodox love affair, but it also functions as a sustained exploration of the ambiguities of love, gender, intimacy, and aesthetic possibilities.” —Publishers Weekly




Engineering


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Geo-Platinum 87


Book Description

The Geo-Platinum 87 Symposium, held at the Open University during April 1987, was designed as a forum for presentation of new research results on the occurrence, genesis, geochemistry, mineralogy and analysis of the platinum-group elements (PGE). With the support of the Open University and the Mineral Industry Research Organisation, the symposium was attended by 115 representatives of university departments, research institutions and members of the mining and mineral exploration industries. An introduction to the symposium was provided by two invited papers from C. J. Morrissey (Riofinex North) and C. R. N. Clark (Johnson Matthey) which were designed to give perspective to the goals of PGE research work. The first of these papers gave a provocative insight into the aims and objectives of an exploration manager, examining the influence of supply, demand and perceived world reserves on exploration strategy. The second invited paper gave a valuable view of the industrial uses, market trends and predicted changes in the commercial value of the platinum-group elements from the standpoint of a refining company and supplier. These invited papers are reproduced in this volume and are followed by twenty four full papers and twenty abstracts that reflect the wide range of research topics presented at the symposium.




Nanoporous Gold


Book Description

High-surface-area materials have recently attracted significant interest due to potential applications in various fields such as electrochemistry and catalysis, gas-phase catalysis, optics, sensors and actuators, energy harvesting and storage. In contrast to classical materials the properties of high-surface-area materials are no longer determined by their bulk, but by their nanoscale architecture. Nanoporous gold (np-Au) represents the fascinating class of mesoporous metals that have been intensively investigated in recent years. The current interest and the increasing number of scientific publications show that np-Au by itself is an outstanding nano-material that justifies a book devoted to all aspects of its properties and applications. The resulting publication is a discussion of this unique nano-material and is an accessible and comprehensive introduction to the field. The book provides a broad, multi-disciplinary platform to learn more about the properties of nanoporous gold from an inter-disciplinary perspective. It starts with an introduction and overview of state-of-the-art applications and techniques characterizing this material and its applications. It then covers the progress in research within the last years. The chapters are in-depth overviews written by the world's leading scientists in the particular field. Each chapter covers one technique or application so that the reader can easily target their favoured topic and will get the latest and state-of-the-art information in the field.