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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

Defects and perfect flows

Article Abstract:

The experimental observation about superfluidity flow without resistance from frictional forces in crystalline helium is investigated. The findings have suggested that rather than being an intrinsic property of a perfect quantum solid, superflows owe their existence to macroscopic defects or extended disorder in the structure of solid helium.

Author: Glyde, Henry R.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
Analysis, Condensed matter, Superfluidity, Properties, Structure

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Non-equilibrium degassing and a primordial source for helium in ocean-island volcanism

Article Abstract:

A new, self-consistent model for degassing of carbon dioxide, water and noble gases in ocean-island basalts and mid-ocean ridge basalts magmas is presented. It is revealed that it settles the helium concentration paradox and constrains the noble-gas concentrations in the parental magmas.

Author: Gonnermann, Helge M., Mukhopadhyay, Sujoy
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
Natural history, Earth, Radioactivity, Optical properties, Mantle (Geology)

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Subjects list: Research, Helium
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