Artículo
Frontini, G.L.; Fernández Berdaguer, E.M. "Inversion of elastic light scattering measurements to determine refractive index and particle size distribution of polymeric emulsions" (2003) Inverse Problems in Engineering. 11(4):329-340
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Abstract:
Polymeric emulsions are well characterized by the knowledge of their particle size distributions (PSD). Elastic-light-scattering (ELS) measurements can be inverted to estimate the PSD in the range from 50 nm up to several micrometers. The relative refractive index of the particles is required in computation procedures to obtain the PSD. Small differences in the assumed refractive index may cause significant differences in the resulting PSD. From the scattering data, the refractive index can be determined. In this article we present the corresponding technique. We consider polymeric emulsions where the nonabsorption assumption is reasonable. We propose a methodology based on Tikhonov regularization applied only to the distribution. However, we solve the minimization problem simultaneously with respect to the distribution and the refractive index. To select the regularization parameter, we include the Generalized Cross Validation (GCV) technique. From simulated ELS measurements we show that the problem is solved successfully.
Registro:
| Documento: | Artículo |
| Título: | Inversion of elastic light scattering measurements to determine refractive index and particle size distribution of polymeric emulsions |
| Autor: | Frontini, G.L.; Fernández Berdaguer, E.M. |
| Filiación: | INTEMA, Univ. Nac. de Mar del Plata, Mar del Plata, Argentina Instituto de Calculo FCEyN, Fac. Ingeniería, Univ. Nac. de Buenos Aires, Buenos Aires, Argentina |
| Palabras clave: | Elastic light scattering; Generalized cross validation; Tikhonov regularization; Computer simulation; Emulsions; Light absorption; Light measurement; Light scattering; Optimization; Parameter estimation; Particle size analysis; Polymers; Refractive index; Elastic light scattering; Generalized cross validation technique; Polymeric emulsions; Tikhonov regularization; Inverse problems |
| Año: | 2003 |
| Volumen: | 11 |
| Número: | 4 |
| Página de inicio: | 329 |
| Página de fin: | 340 |
| Título revista: | Inverse Problems in Engineering |
| Título revista abreviado: | Inverse Probl. Eng. |
| ISSN: | 10682767 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10682767_v11_n4_p329_Frontini |
Referencias:
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Citas:
---------- APA ----------
Frontini, G.L. & Fernández Berdaguer, E.M. (2003) . Inversion of elastic light scattering measurements to determine refractive index and particle size distribution of polymeric emulsions. Inverse Problems in Engineering, 11(4), 329-340.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10682767_v11_n4_p329_Frontini [ ]
---------- CHICAGO ----------
Frontini, G.L., Fernández Berdaguer, E.M. "Inversion of elastic light scattering measurements to determine refractive index and particle size distribution of polymeric emulsions" . Inverse Problems in Engineering 11, no. 4 (2003) : 329-340.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10682767_v11_n4_p329_Frontini [ ]
---------- MLA ----------
Frontini, G.L., Fernández Berdaguer, E.M. "Inversion of elastic light scattering measurements to determine refractive index and particle size distribution of polymeric emulsions" . Inverse Problems in Engineering, vol. 11, no. 4, 2003, pp. 329-340.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10682767_v11_n4_p329_Frontini [ ]
---------- VANCOUVER ----------
Frontini, G.L., Fernández Berdaguer, E.M. Inversion of elastic light scattering measurements to determine refractive index and particle size distribution of polymeric emulsions. Inverse Probl. Eng. 2003;11(4):329-340.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10682767_v11_n4_p329_Frontini [ ]
