959 resultados para Henry I, King of Germany, ca. 876-936.


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Also scanned image with inscription at 600 dpi - both share same hs#, sufix 1of2 or 2of2

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2 scans - 1of2 =as photo appears today, 2of2 = auto color corrected

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Mode of access: Internet.

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Includes bibliographical references.

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"Poems ('Vers libre') by Carmen Sylva": vol. II, p. 175-222.

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Raman spectroscopy has been used to study the arsenate minerals haidingerite Ca(AsO3OH)•H2O and brassite Mg(AsO3OH)•4H2O. Intense Raman bands in haidingerite spectrum observed at 745 and 855 cm-1 are assigned to the (AsO3OH)2- ν3 antisymmetric stretching and ν1 symmetric stretching vibrational modes. For brassite two similarly assigned intense bands are found at 809 and 862 cm-1. The observation of multiple Raman bands in the (AsO3OH)2- stretching and bending regions suggests that the arsenate tetrahedrons in the crystal structures of both minerals studied are strongly distorted. Broad Raman bands observed at 2842 cm-1 for haidingerite and 3035 cm-1 for brassite indicate strong hydrogen bonding of water molecules in the structure of these minerals. OH…O hydrogen bond lengths were calculated from the Raman spectra based on empiric relations.