James Amoani
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
James Amoani has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Benjamin Osae Asamoah
University of Eastern Finland
1 shared publication - Boniphace Kanyathare
Department of Physics and Mathematics, University of Eastern Finland, FI-80100 Joensuu, Finland
1 shared publication - Jukka Räty
Unit of Measurement Technology, MITY, University of Oulu, Technology Park, P.O.BOX 127, FI-87400 Kajaani, Finland
1 shared publication - Kai-Erik Peiponen
University of Eastern Finland
1 shared publication - Umair Ishaq
Department of Physics and Mathematics, University of Eastern Finland, FI-80100 Joensuu, Finland
1 shared publication
Latest Publications
- Open Access
- 23 September 2020
- Published by MDPI AG in Chemosensors
- Vol. 8 (4) , 88
Identification of Plastic Type and Surface Roughness of Film-Type Plastics in Water Using Kramers–Kronig Analysis
The knowledge of the plastic type, thickness, and the nature of the surface is important towards the monitoring of microplastic pollution in water bodies, especially when vis-NIR spectroscopy is utilized. Factors such as complex environment and surface roughness induced-light scattering of the probing light limit the optical detection of these parameters in in-situ measurements, however. In this paper, a novel application of Kramers–Kronig analysis was exploited to identify both smooth and rough film-type macroplastics with unknown thickness. This method is particularly useful in the in-situ identification of unknown film-like macroplastics; although the sample is large, the ratio function is detected from an area that corresponds to the size of a MP. Therefore, it can be applied for the case of large size MPs. The validity of the method was demonstrated using transmittance data for smooth and roughened plastics given in Kanyathare et al., 2020.
- 23 September 2020
- Published by MDPI AG in Chemosensors
- Vol. 8 (4) , 88
Open AccessIdentification of Plastic Type and Surface Roughness of Film-Type Plastics in Water Using Kramers–Kronig Analysis
The knowledge of the plastic type, thickness, and the nature of the surface is important towards the monitoring of microplastic pollution in water bodies, especially when vis-NIR spectroscopy is utilized. Factors such as complex environment and surface roughness induced-light scattering of the probing light limit the optical detection of these parameters in in-situ measurements, however. In this paper, a novel application of Kramers–Kronig analysis was exploited to identify both smooth and rough film-type macroplastics with unknown thickness. This method is particularly useful in the in-situ identification of unknown film-like macroplastics; although the sample is large, the ratio function is detected from an area that corresponds to the size of a MP. Therefore, it can be applied for the case of large size MPs. The validity of the method was demonstrated using transmittance data for smooth and roughened plastics given in Kanyathare et al., 2020.