Journal ArticleDOI
Indentification of plastic waste using spectroscopy and neural networks
David M. Scott,R. L. Waterland +1 more
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In this article, the authors investigated a new approach for the automated sorting of post-consumer plastic waste using a combination of fixed-filter near-infrared spectroscopy and neural network data analysis.Abstract:
In this paper we investigate a new approach for the automated sorting of post-consumer plastic waste. We show that rapid and reliable identification of polymers can be achieved using a combination of fixed-filter near-infrared spectroscopy and neural network data analysis, and we demonstrate the effectiveness of the proposed method for sorting polyethylene terephthalate, high density polyethylene, and poly(vinyl chloride). Finally, we discuss a proposed compact, rugged instrument based on the new sorting method. Owing to the flexibility gained by incorporating neural networks in our system, this method can easily be extended to include additional polymers.read more
Citations
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Study of the physico-chemical properties of recycled polymers from waste electrical and electronic equipment (WEEE) sorted by high resolution near infrared devices
TL;DR: In this paper, the authors evaluated the sorting performance of near infrared (NIR) devices, developed by the company PELLENC ST, for three styrenic polymers from waste electrical and electronic equipment (WEEE): acrylonitrile-butadiene-styrene, high impact polystyrene (HIPS) and ABS/polycarbonate blend (ABS/PC) and studied the physico-chemical properties of recycled materials.
Journal ArticleDOI
From Trash to Cash: How Blockchain and Multi-Sensor-Driven Artificial Intelligence Can Transform Circular Economy of Plastic Waste?
Aditya Chidepatil,Prabhleen Bindra,Devyani Kulkarni,Mustafa Qazi,Meghana Kshirsagar,Krishnaswamy Sankaran +5 more
TL;DR: This paper has demonstrated how different data-fusion modes can be employed to retrieve various physico-chemical parameters of plastic waste for accurate segregation and discussed how smart tools help in efficiently segregating commingled plastics and can be reliably used in the circular economy of plastic.
Journal ArticleDOI
A two-colour near-infrared sensor for sorting recycled plastic waste
TL;DR: In this article, a two-colour fixed filter near-infrared spectrometer in conjunction with a simple ratio circuit was used for sorting polyethylene terephthalate and polyvinyl chloride.
Journal ArticleDOI
FT-NIR spectroscopy: Trends and application to the kinetic study of epoxy/triamine system (comparison with DSC and SEC results)
TL;DR: In this article, an analysis of an epoxy (DGEBA)/triamine (liquid hardener T403) system was carried out by near infrared (NIR) spectroscopy, DSC and SEC.
Journal ArticleDOI
Plastic identification by remote sensing spectroscopic NIR imaging using kernel partial least squares (KPLS)
W.H.A.M. van den Broek,E.P.P.A. Derks,E. T. W. M. van de Ven,D. Wienke,Paul Geladi,L.M.C. Buydens +5 more
TL;DR: This work describes the application of partial least squares (PLS) modeling in data reduction purposes for the classification of spectroscopic near infrared (NIR) images andphasis is put on the performance of PLS as a supervised data decomposition technique for the classified image data, applied on a real world application.
References
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Journal ArticleDOI
Learning representations by back-propagating errors
TL;DR: Back-propagation repeatedly adjusts the weights of the connections in the network so as to minimize a measure of the difference between the actual output vector of the net and the desired output vector, which helps to represent important features of the task domain.
Journal ArticleDOI
A logical calculus of the ideas immanent in nervous activity
Warren S. McCulloch,Walter Pitts +1 more
TL;DR: In this article, it is shown that many particular choices among possible neurophysiological assumptions are equivalent, in the sense that for every net behaving under one assumption, there exists another net which behaves under another and gives the same results, although perhaps not in the same time.
Journal ArticleDOI
Optical properties of water in the near infrared.
Kent F. Palmer,Dudley Williams +1 more
TL;DR: In this paper, the real n (ν) and imaginary k(ν) parts of the complex refractive index Nˆ = n + i k of water at 27 °C have been determined from measurements of spectral reflectance at near-normal incidence and measurements of the transmittance of water in carefully constructed absorption cells.
Journal ArticleDOI
The near-infrared spectra of polymers
TL;DR: In this article, a series of step reaction polymers have been prepared and studied as melt films or in solution in the overtone region and the combination region of the near-IR.
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