Petr Pruner

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Magnetic images have been produced at the distance of 0.1 mm from the polished basaltic thin sections of rocks from Prague Synform in Barrandian area. Three different magnetic textures were seen and when combined with optical imaging could be related to petrological features. The first magnetic texture revealed that most of the magnetic signature is(More)
Subject: Numerous trunks of subfossiI oak up to 9500 B.P. in age were found during stratigraphic studies o1" Holocene fluviatile deposits laid down in the Labe River flood-plain. Bohemia. Methods used to examine the trunks in a complex way revealed that the oak was a carrier of remanent magnetization. Wood sample was taken fl'om Hradigtko for detailed(More)
Persons with rheumatic diseases in the hand-arm-system are hindered to use requisits in their daily activities, because they can only fulfill grasping and holding functions with great difficulties and pain. A substancial point in this analysis takes the questions of existing knowledge and experiences in ergonomics and medical therapy concerning design(More)
A magnetic signature of tree rings was tested as a potential paleo-climatic indicator. We examined wood from sequoia tree, located in Mountain Home State Forest, California, whose tree ring record spans over the period 600 - 1700 A.D. We measured low and high-field magnetic susceptibility, the natural remanent magnetization (NRM), saturation isothermal(More)
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