Biodeterioration patterns found in dammar resin used as art material
نویسندگان
چکیده
منابع مشابه
Biodeterioration of Cultural Heritage in Italy: State of Art
The problem of deterioration of works of art is particularly relevant in Countries like Italy that are rich in Cultural Heritage. In fact, following UNESCO data, in Italy are located 2/3 of the Cultural Heritage known in the World. Archeological areas, statues, buildings, museums, churches and items there located, hypogean environments, are subjected to different stresses due the geographical p...
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Problem statement: Dammar is a natural resin that used anciently in varnish production. The use of dammar natural resin in coating is limited by undesirable properties for application in coating where it is considered very brittle. Due to dammar's brittle nature, an aged dammar coating can be easily scratched or abraded. Approach: Dammar natural resin could be modified into SiliconeDammar by us...
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OBJECTIVES To determine nanoleakage of CAD/CAM ceramic blocks bonded to dentin with self-adhesive resin cement. METHODS Eighteen sound extracted human molars were sterilized and sectioned into 3 mm-thick dentin sections. Trilux Cerec Vitablocks (Vita) were also sectioned into 3 mm sections, surface-treated using 5% hydrofluoric acid-etchant, and then coated with silane primer (Vita). Trilux a...
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To protect materials against biodeterioration, physical, biological or chemical methods can be used. Chemical inhibitors of biodeterioration are the most common and effective. A new class of chemical inhibitors-gemini alkylammonium salts-shows excellent biocidal properties and good ecological profile. These compounds can be applied as biodeterioration inhibitors in a wide variety of materials.
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it is shown how the radiation characteristic of a patch antenna can be manipulated by a small number of normally magnetized ferrite disks inserted in the resonant region of the patch. It is shown that a oneand dual-band circular polarized microstrip antenna can be obtained by taking advantage of the interaction of the antenna cavity field with the magnetized ferrite disks. . The dependence of t...
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ژورنال
عنوان ژورنال: Electronic Journal of Biotechnology
سال: 2010
ISSN: 0717-3458,0717-3458
DOI: 10.2225/vol13-issue3-fulltext-7