Macromolecular properties from light-scattering experimental data using linear inverse problem theory

被引：5

作者：

Virtuoso, Luciano S.

Sebastiao, Rita C. O.

Braga, Joao P. ^{[1
]}

Da Silva, Luis H. M.

机构：

[1] Univ Fed Minas Gerais, ICEx, Dept Quim, Belo Horizonte, MG, Brazil

[2] Ctr Univ Caratinga, FUNEC, Dept Quim, Caratinga, MG, Brazil

[3] Univ Fed Vicosa, Dept Quim, Vicosa, MG, Brazil

来源：

INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY | 2006年 / 106卷 / 13期

关键词：

light scattering; Hopfield neural network; inverse problem;

D O I：

10.1002/qua.21036

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The inversion of the temporal correlation function in dynamic light-scattering experimental data for polyethylene oxide + H2O + NaCl is treated in the present work. The relaxation time distribution function for this ill-posed problem is obtained by a recurrent neural network, using analytical inverse Laplace transform as the initial condition. Diffusion coefficient and particle size distributions can also be retrieved from this relaxation time distribution, providing important information for the experimental researcher. (C) 2006 Wiley Periodicals, Inc.

引用

页码：2731 / 2736

页数：6

共 19 条

[1] Berne B. J., 2000, DYNAMIC LIGHT SCATTE
[2] Hopfield neural network model for calculating the potential energy function from second virial data
Braga, JP
de Almeida, MB
Braga, AP
Belchior, JC
[J]. CHEMICAL PHYSICS, 2000, 260 (03) : 347 - 352
[3] Numerical comparison between Tikhonov regularization and singular value decomposition methods using the L curve criterion
Braga, JP
[J]. JOURNAL OF MATHEMATICAL CHEMISTRY, 2001, 29 (02) : 151 - 161
[4] Anomalous conformational properties of PEO in H2O and D2O by SANS, PCS and raman scattering
Branca, C
Faraone, A
Magazù, S
Maisano, G
Migliardo, P
Triolo, A
Triolo, R
Villari, V
[J]. JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2000, 33 (01) : 709 - 713
[5] Calorimetric investigation of the formation of aqueous two-phase systems in ternary mixtures of water, poly(ethylene oxide) and electrolytes (or dextran)
da Silva, LHM
Loh, W
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (43) : 10069 - 10073
[6] Identification of the formation of aggregates in PEO solutions
Duval, M
Sarazin, D
[J]. POLYMER, 2000, 41 (07) : 2711 - 2716
[7] FRIEDEN BR, 1979, PICTURE PROCESSING D
[8] GROTSCH CW, 1984, THEORY TIKHONOV REGU
[9] NEURAL NETWORKS AND PHYSICAL SYSTEMS WITH EMERGENT COLLECTIVE COMPUTATIONAL ABILITIES
HOPFIELD, JJ
[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES, 1982, 79 (08): : 2554 - 2558
[10] Kratochvil P., 1987, CLASSICAL LIGHT SCAT

← 1 2 →