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pro vyhledávání: '"Peiponen A"'
Autor:
Gebejes, A., Hrovat, B., Semenov, D., Kanyathare, B., Itkonen, T., Keinänen, M., Koistinen, A., Peiponen, K.-E., Roussey, M.
Publikováno v:
In Science of the Total Environment 20 September 2024 944
Autor:
Hrovat, Blaž, Uurasjärvi, Emilia, Viitala, Mirka, del Pino, Ana Franco, Mänttäri, Mika, Papamatthaiakis, Nikolaos, Haapala, Antti, Peiponen, Kai-Erik, Roussey, Matthieu, Koistinen, Arto
Publikováno v:
In Science of the Total Environment 15 May 2024 925
Akademický článek
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Autor:
Gebejes Ana, Mubarak Hafiz Ramzan, Semenov Dmitri, Koistinen Arto, Peiponen Kai-Erik, Roussey Matthieu
Publikováno v:
EPJ Web of Conferences, Vol 309, p 10017 (2024)
We utilize hyperspectral imaging (HSI) technique for detecting and characterizing black microplastics (BMPs) in water samples directly. We fabricated nine BMP samples from common daily life plastics using a metal work file with a diameter of approxim
Externí odkaz:
https://doaj.org/article/b385d7d4ba024a2dbe7acc8d896d10af
Autor:
Gebejes Ana, Kaynathare Boniphace, Hrovat Blaž, Semenov Dmitri, Itkonen Tommi, Keinänen Markku, Koistinen Arto, Peiponen Kai-Erik, Roussey Matthieu
Publikováno v:
EPJ Web of Conferences, Vol 287, p 09002 (2023)
We use hyperspectral imaging to identify the plastic types constituting mixtures of microplastics directly in water. For the current study we used known microplastics made by milling original pristine plastic sheets and mixed them in water. Using dat
Externí odkaz:
https://doaj.org/article/dccb7f0f32da42329cff11c4abf13dd1
Autor:
Peiponen Kai-Erik, Kanyathare Boniphace, Hrovat Blaž, Papamatthaiakis Nikolaos, Hattuniemi Joni, Asamoah Benjamin, Haapala Antti, Koistinen Arto, Roussey Matthieu
Publikováno v:
Journal of the European Optical Society-Rapid Publications, Vol 19, Iss 1, p 14 (2023)
In this study a commercial particle analyzer was used to image and help sorting microplastic particles (MPs) dispersed in filtrated and de-aerated tap water. The device provides a relatively easy and fast procedure for obtaining ultra-high-definition
Externí odkaz:
https://doaj.org/article/c95b22e58d9847c58855a358b5fccdb7
Complex response function obtained in reflection spectroscopy at terahertz range is examined with algorithms based on dispersion relations for integer powers of complex reflection coefficient, which emerge as a powerful and yet uncommon tools in exam
Externí odkaz:
http://arxiv.org/abs/cond-mat/0509176
Kramers-Kronig type dispersion relations for integer powers of complex reflection coefficient are introduced for testing the consistency of terahertz reflection spectra. By using numerical simulations we show that such dispersion relations can be app
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506315
In THz reflection spectroscopy the complex permittivity of an opaque medium is determined on the basis of the amplitude and of the phase of the reflected wave. There is usually a problem of phase error due to misplacement of the reference sample. Suc
Externí odkaz:
http://arxiv.org/abs/cond-mat/0505693
We present multiply subtractive Kramers-Kronig (MSKK) relations for the moments of arbitrary order harmonic generation susceptibility. Using experimental data on third-harmonic wave from polysilane, we show that singly subtractive Kramers-Kronig (SSK
Externí odkaz:
http://arxiv.org/abs/cond-mat/0306139