نتایج جستجو برای: waterlogged
تعداد نتایج: 578 فیلتر نتایج به سال:
Waterlogged archaeological wood can provide information on past human activities and technology but its structure may be modified due to microbial deterioration. Knowing conservation state is fundamental for restoration. Aim of this work was test the use non-destructive portable NMR microstructural characterization preservation three samples (Roman age, 5th century AD). 1D T1 T2 relaxation time...
In marine-archaeological oak timbers of the Mary Rose large amounts of reduced sulfur compounds abound in lignin-rich parts such as the middle lamella between the cell walls, mostly as thiols and disulfides, whereas iron sulfides and elemental sulfur occur in separate particles. Synchrotron-based x-ray microspectroscopy was used to reveal this environmentally significant accumulation of organos...
Developing establishment guidelines for Shorea palosapis in smallholder plantings in the Philippines
A series of trials examining fertilizer-shading interactions on the island of Leyte (Philippines, 11°N) revealed that the endemic dipterocarp mayapis (Shorea palosapis) benefits from shade trees, either directly above or to the east, during the early stages of plantation establishment. Although it can attain 2 cm/year diameter increment in plantations, mayapis exhibits poor growth and survival ...
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