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2 produkter
2 produkter
Häftad, Engelska, 2003
557 kr
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Museums throughout the world face the challenge of finding non-toxic methods to control insect pests. This book focuses on practical rather than theoretical issues in the use of oxygen-free environments, presenting a detailed, hands-on guide to the use of oxygen-free environments in the eradication of museum insect pests. This volume discusses the use of nitrogen as the inert gas used to replace oxygen, and the use of a few specific types of containers as treatment chambers. An initial chapter explains the general advantages anoxia offers museum conservators. Subsequent chapters discuss methods and materials, small-scale anoxia using an oxygen absorber, large-scale anoxia using external nitrogen sources, and protocols for insect eradication using nitrogen anoxia. Appendices include a list of manufacturers and suppliers of material and equipment used in nitrogen anoxia. This volume includes a CD-ROM of the book, featuring an Index with terms linked to the text
Häftad, Engelska, 2013
186 kr
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Unique and wildly creative, this mathematical and geometricapproach to origami contains 40 models of cubes, towers, andgeometric shapes as well as puzzles and models of everyday items— all folded from rectangular paper. This is the first publicationoutside Japan of these original figures, offering intermediate leveland serious origamists an intriguingblend of art and science.Dover (2012) English translation andnew selection of models from GenuineOrigami Ã2, Japan Publications TradingCo. Ltd., Japan, 2009.