This study determined the emissivity of nylon, cotton, polyester, and acrylic fabrics coated with dried rat blood in the thermographic infrared region (~8–12 µm wavelength) at 40 °C and at the lowest humidity researchers could attain in the laboratory.
Results show the emissivity of known nylon (ε = 0.87), cotton (ε = 0.88) and polyester (ε = 0.88) fabrics in the study’s laboratory increased by 0.01, 0.01 and 0.03 respectively when coated with dried blood at a concentration of 100 µL of whole blood per 0.9 cm 2 of fabric. An acrylic fabric (ε = 0.82) shows an increase in emissivity of 0.05 under the same conditions. The research team also investigated the change in emissivity of an acrylic fabric sample coated heavily with whole rat blood 8 years previously as a function of humidity and found that its emissivity increased from 0.90 at low humidity to nearly 0.94 at 90-percent humidity. 1 figure (publisher abstract modified)
Downloads
Similar Publications
- Insights into turning points from the perspective of young people with out-of-home care experience: events, impact and facilitators of change
- Two-Stage Approach for the Inference of the Source of High-Dimension and Complex Chemical Data in Forensic Science
- Forensic Science and the Courts - The Uses and Effects of Scientific Evidence in Criminal Case Processing - Final Report