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The removal of unwanted matter from surface stones is a demanding task in the conservation of cultural heritage. This paper investigates the effectiveness of near-infrared (IR) and ultraviolet (UV) laser pulses for the cleaning of surface deposits, iron oxide stains and different types of graffiti (black, red and green sprays and markers, and black cutting-edge ink) on dolomitic white marble. The...
The film forming properties at the air–water interface of asphaltenes from Arabian light crude oil have been investigated experimentally in a Langmuir trough. The stability and dynamical behavior of the films have been studied in compression–decompression cycles and at different temperatures and concentrations of the toluene spreading solution. The results are interpreted in terms of models for the...
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