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https://repositorio.ufba.br/handle/ri/16001
metadata.dc.type: | Artigo de Periódico |
Title: | Thermal characterization in vitro of human nail: photoacoustic study of the aging process |
Other Titles: | Photochemistry and Photobiology |
Authors: | Dias, Daniele Toniolo Steimacher, Alysson Bento, Antonio Carlos Medina Neto, Antonio Baesso, Mauro Luciano |
metadata.dc.creator: | Dias, Daniele Toniolo Steimacher, Alysson Bento, Antonio Carlos Medina Neto, Antonio Baesso, Mauro Luciano |
Abstract: | In the present work, the rear photoacoustic signal technique is used to determine thermal properties of human nails. The aging process of the human nail is analyzed through its thermal diffusivity and specific heat and using these results, thermal conductivity and thermal effusivity is determined. The study in vitro of this natural polymer showed a minimum for thermal properties to age about 20 years and an increase and possible saturation of them for ages over 50 years. The minimum value found for thermal diffusivity was close to 10 × 10−4 cm2 s−1 with saturation near 18 × 10−4 cm2 s−1. Thermal conductivity and effusivity presents the same behavior. |
metadata.dc.rights: | Acesso Aberto |
URI: | http://repositorio.ufba.br/ri/handle/ri/16001 |
Issue Date: | 2007 |
Appears in Collections: | Artigo Publicado em Periódico (FIS) |
Files in This Item:
File | Description | Size | Format | |
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j.1751-1097.2007.00074.x-1.pdf | 235 kB | Adobe PDF | View/Open |
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