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Catalogue of Meteorites from South America (Paperback, 2014 ed.): Rogelio Daniel Acevedo, Maximiliano C. L. Rocca, Victor... Catalogue of Meteorites from South America (Paperback, 2014 ed.)
Rogelio Daniel Acevedo, Maximiliano C. L. Rocca, Victor Manuel Garcia
R1,929 Discovery Miles 19 290 Ships in 10 - 15 working days

The first Catalogue of Meteorites from South America includes new specimens never previously reported, while doubtful cases and pseudometeorites have been deliberately omitted.

The falling of these objects is a random event, but the sites where old meteorites are found tend to be focused in certain areas, e.g. in the deflation surfaces in Chile s Atacama Desert, due to favorable climate conditions and ablation processes.

Our Catalogue provides basic information on each specimen like its provenance and the place where it was discovered (in geographic co-ordinates and with illustrative maps), its official name, its classification type (class, and if applicable, weathering grade and shock stage), if it was seen falling or was found by chance, its total mass or weight, the institution where it is held, and the most important bibliographic references about it.

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Personalisation Systems (Paperback): Victor Manuel Garcia Barrios Personalisation Systems (Paperback)
Victor Manuel Garcia Barrios
R2,003 Discovery Miles 20 030 Ships in 10 - 15 working days

Personalisation systems provide individualised services. Their usefulness and success depend on the accuracy of their knowledge about their respective users. In this context, user modelling refers to the acquisition, creation, storage, maintenance, and delivery of knowledge about users. Further, a personalisation system can also benefit from additional internal models of other entities in its environment, such as communication devices or specific sensors. This additional knowledge increases its capability of adapting successfully for different purposes. The need for the application of such systems can be currently found in areas including e-learning, e-commerce, recommender systems, and ubiquitous computing. This book presents research and development towards a Multi-purpose Modelling System. The result is a flexible and reusable software framework for modelling users of adaptive systems.

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