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JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) . Vol. LXXXIX, N° 2Mention de date : 02/1994Paru le : 01/02/1994 |
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Ajouter le résultat dans votre panierAutomatic determination of shrinkage temperature from shrinkage data of leather / E. Mäntysalo in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXIX, N° 2 (02/1994)
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inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXIX, N° 2 (02/1994) . - p. 35-38
Titre : Automatic determination of shrinkage temperature from shrinkage data of leather Type de document : texte imprimé Auteurs : E. Mäntysalo, Auteur ; M. Marjoniemi, Auteur Année de publication : 1994 Article en page(s) : p. 35-38 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : It is difficult to determine the beginning of the shrinkage-temperature distribution of leather(Ts).Earlier it was the practice to do this visually. It is possible to determine Ts automatically by applying a condition for the first derivative of the measured shrinkage data. A linear-curve fitting method is applied for the length-temperature data below a tested Ts and for from the next five to ten sample-data points resulting in two lines. A condition that the first derivative of the latter line should be four times the first derivative of the former line gives satisfactory results. En ligne : https://drive.google.com/file/d/1OKGbmYmQaGEbNksfU4EH03McWh1fiF3Q/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8111 [article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006915 - Périodique Bibliothèque principale Documentaires Disponible Calibration of dye solutions with artificial neural networks / Marja Marjoniemi in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXIX, N° 2 (02/1994)
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inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXIX, N° 2 (02/1994) . - p. 39-48
Titre : Calibration of dye solutions with artificial neural networks Type de document : texte imprimé Auteurs : Marja Marjoniemi, Auteur Année de publication : 1994 Article en page(s) : p. 39-48 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : In recent years artificial neural networks(ANN) have generated widespread interest and gained popularity.Numerous applications have been investigated, including pattern recognition,signal processing, process control and modeling or calibrating. ANN as a nonlinear calibraion method has been found to give superior results in calibration of nonlinearly behaving solutions.In the present study neural networks are applied to multivariate calibration of dye solutions using spectroscopic data and for producting quantitative estimates of the concentrations of a component in the mixture.Absorbance is linearly dependent on concentration only in a narrow concentration range.There exists severe overlapping of the absorption bands in multi-component dye solutions. The solutions studied here were multi-component and the concentration range of the dye to be calibrated was wide(0-975 mg/l). Thus the absorbance of the solutions changes nonlinearly as a fonction of concentration.The results are compared with the results obtained with other multivariate calibration methods; principal component regression ans partial least-squares regression. Metal complex dyes were used in making the dye solutions.The absorbance spectra of the samples were measured in the visible range of light. The sigmoid output function was used in the hidden layer of the network to perform nonlinear fitting. En ligne : https://drive.google.com/file/d/1iSG5xjvWcwGVeKJJv-H9TkVNiFC-bSBP/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8112 [article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006915 - Périodique Bibliothèque principale Documentaires Disponible
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Code-barres | Cote | Support | Localisation | Section | Disponibilité |
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006915 | - | Périodique | Bibliothèque principale | Documentaires | Disponible |