Model-free estimation of mass fluxes based on concentration profiles. II. Effect of noise on concentration profiles and of time resolution
An extension of the approach adopted in Part I was developed to improve the identification of diffusivity (D) in relation to the inverse mass diffusion problem. It was based on an estimation of mass fluxes from concentration profiles previously fitted with smoothing spline functions. Data was smoothed to remove noise and to compensate for low spatial resolution. Estimated D values were compared with the true solution used to generate virtual concentration data. The error (er) on D was considerably reduced if the Fo domain was not uniformly distributed but it verified uniform distribution of the average concentration. The effect of the quality of the experimental concentration data (spatial and temporal resolution, noise intensity) on er was also studied. Where D varied with concentration, er was minimal and close to the noise intensity if the numbers of concentration profiles or concentration data per profile were higher than 20. © 2006 Elsevier Ltd All rights reserved.
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Subjects: | Q02 - Traitement et conservation des produits alimentaires, alimentation, transfert de masse, modèle, méthode, diffusion, bruit, http://aims.fao.org/aos/agrovoc/c_2838, http://aims.fao.org/aos/agrovoc/c_28601, http://aims.fao.org/aos/agrovoc/c_4881, http://aims.fao.org/aos/agrovoc/c_4788, http://aims.fao.org/aos/agrovoc/c_24936, http://aims.fao.org/aos/agrovoc/c_5205, |
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dig-cirad-fr-5363182024-01-28T15:03:29Z http://agritrop.cirad.fr/536318/ http://agritrop.cirad.fr/536318/ Model-free estimation of mass fluxes based on concentration profiles. II. Effect of noise on concentration profiles and of time resolution. Bohuon Philippe, Lucas Thiphaine. 2007. Journal of Food Engineering, 80 (3) : 754-762.https://doi.org/10.1016/j.jfoodeng.2006.02.031 <https://doi.org/10.1016/j.jfoodeng.2006.02.031> Model-free estimation of mass fluxes based on concentration profiles. II. Effect of noise on concentration profiles and of time resolution Bohuon, Philippe Lucas, Thiphaine eng 2007 Journal of Food Engineering Q02 - Traitement et conservation des produits alimentaires alimentation transfert de masse modèle méthode diffusion bruit http://aims.fao.org/aos/agrovoc/c_2838 http://aims.fao.org/aos/agrovoc/c_28601 http://aims.fao.org/aos/agrovoc/c_4881 http://aims.fao.org/aos/agrovoc/c_4788 http://aims.fao.org/aos/agrovoc/c_24936 http://aims.fao.org/aos/agrovoc/c_5205 An extension of the approach adopted in Part I was developed to improve the identification of diffusivity (D) in relation to the inverse mass diffusion problem. It was based on an estimation of mass fluxes from concentration profiles previously fitted with smoothing spline functions. Data was smoothed to remove noise and to compensate for low spatial resolution. Estimated D values were compared with the true solution used to generate virtual concentration data. The error (er) on D was considerably reduced if the Fo domain was not uniformly distributed but it verified uniform distribution of the average concentration. The effect of the quality of the experimental concentration data (spatial and temporal resolution, noise intensity) on er was also studied. Where D varied with concentration, er was minimal and close to the noise intensity if the numbers of concentration profiles or concentration data per profile were higher than 20. © 2006 Elsevier Ltd All rights reserved. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/536318/1/document_536318.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.jfoodeng.2006.02.031 10.1016/j.jfoodeng.2006.02.031 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jfoodeng.2006.02.031 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.jfoodeng.2006.02.031 |
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Q02 - Traitement et conservation des produits alimentaires alimentation transfert de masse modèle méthode diffusion bruit http://aims.fao.org/aos/agrovoc/c_2838 http://aims.fao.org/aos/agrovoc/c_28601 http://aims.fao.org/aos/agrovoc/c_4881 http://aims.fao.org/aos/agrovoc/c_4788 http://aims.fao.org/aos/agrovoc/c_24936 http://aims.fao.org/aos/agrovoc/c_5205 Q02 - Traitement et conservation des produits alimentaires alimentation transfert de masse modèle méthode diffusion bruit http://aims.fao.org/aos/agrovoc/c_2838 http://aims.fao.org/aos/agrovoc/c_28601 http://aims.fao.org/aos/agrovoc/c_4881 http://aims.fao.org/aos/agrovoc/c_4788 http://aims.fao.org/aos/agrovoc/c_24936 http://aims.fao.org/aos/agrovoc/c_5205 |
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Q02 - Traitement et conservation des produits alimentaires alimentation transfert de masse modèle méthode diffusion bruit http://aims.fao.org/aos/agrovoc/c_2838 http://aims.fao.org/aos/agrovoc/c_28601 http://aims.fao.org/aos/agrovoc/c_4881 http://aims.fao.org/aos/agrovoc/c_4788 http://aims.fao.org/aos/agrovoc/c_24936 http://aims.fao.org/aos/agrovoc/c_5205 Q02 - Traitement et conservation des produits alimentaires alimentation transfert de masse modèle méthode diffusion bruit http://aims.fao.org/aos/agrovoc/c_2838 http://aims.fao.org/aos/agrovoc/c_28601 http://aims.fao.org/aos/agrovoc/c_4881 http://aims.fao.org/aos/agrovoc/c_4788 http://aims.fao.org/aos/agrovoc/c_24936 http://aims.fao.org/aos/agrovoc/c_5205 Bohuon, Philippe Lucas, Thiphaine Model-free estimation of mass fluxes based on concentration profiles. II. Effect of noise on concentration profiles and of time resolution |
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An extension of the approach adopted in Part I was developed to improve the identification of diffusivity (D) in relation to the inverse mass diffusion problem. It was based on an estimation of mass fluxes from concentration profiles previously fitted with smoothing spline functions. Data was smoothed to remove noise and to compensate for low spatial resolution. Estimated D values were compared with the true solution used to generate virtual concentration data. The error (er) on D was considerably reduced if the Fo domain was not uniformly distributed but it verified uniform distribution of the average concentration. The effect of the quality of the experimental concentration data (spatial and temporal resolution, noise intensity) on er was also studied. Where D varied with concentration, er was minimal and close to the noise intensity if the numbers of concentration profiles or concentration data per profile were higher than 20. © 2006 Elsevier Ltd All rights reserved. |
format |
article |
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Q02 - Traitement et conservation des produits alimentaires alimentation transfert de masse modèle méthode diffusion bruit http://aims.fao.org/aos/agrovoc/c_2838 http://aims.fao.org/aos/agrovoc/c_28601 http://aims.fao.org/aos/agrovoc/c_4881 http://aims.fao.org/aos/agrovoc/c_4788 http://aims.fao.org/aos/agrovoc/c_24936 http://aims.fao.org/aos/agrovoc/c_5205 |
author |
Bohuon, Philippe Lucas, Thiphaine |
author_facet |
Bohuon, Philippe Lucas, Thiphaine |
author_sort |
Bohuon, Philippe |
title |
Model-free estimation of mass fluxes based on concentration profiles. II. Effect of noise on concentration profiles and of time resolution |
title_short |
Model-free estimation of mass fluxes based on concentration profiles. II. Effect of noise on concentration profiles and of time resolution |
title_full |
Model-free estimation of mass fluxes based on concentration profiles. II. Effect of noise on concentration profiles and of time resolution |
title_fullStr |
Model-free estimation of mass fluxes based on concentration profiles. II. Effect of noise on concentration profiles and of time resolution |
title_full_unstemmed |
Model-free estimation of mass fluxes based on concentration profiles. II. Effect of noise on concentration profiles and of time resolution |
title_sort |
model-free estimation of mass fluxes based on concentration profiles. ii. effect of noise on concentration profiles and of time resolution |
url |
http://agritrop.cirad.fr/536318/ http://agritrop.cirad.fr/536318/1/document_536318.pdf |
work_keys_str_mv |
AT bohuonphilippe modelfreeestimationofmassfluxesbasedonconcentrationprofilesiieffectofnoiseonconcentrationprofilesandoftimeresolution AT lucasthiphaine modelfreeestimationofmassfluxesbasedonconcentrationprofilesiieffectofnoiseonconcentrationprofilesandoftimeresolution |
_version_ |
1792496611952164864 |