Zobrazeno 1 - 10
of 162
pro vyhledávání: '"M. Fixman"'
Publikováno v:
Applied Catalysis A: General. 319:111-118
Cu/SiO2 catalysts were prepared via a sol–gel process in the presence and absence of a hydroxy-carboxylic acid (tartaric acid) as a non-surfactant template or pore-forming agent. These catalysts were characterized by means of nitrogen sorption, X-r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c88b3acefa174234b75f131f41ff6740
https://doi.org/10.1016/j.apcata.2006.11.022
https://doi.org/10.1016/j.apcata.2006.11.022
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 34:1005-1018
The dilute solution properties of copolymers are briefly discussed in relation to those of the parent homopolymers. It is shown that copolymer molecules are usually more expanded in solution than would be expected from the averaged behavior of the pu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56decbf860d346e31894c630453f10c5
https://doi.org/10.1002/polb.1996.905
https://doi.org/10.1002/polb.1996.905
Autor:
M. Fixman, K. Krishnaswamy
Publikováno v:
Journal of Molecular Liquids. 61:209-220
The parameters that enter excluded volume theory, namely the persistence length and the excluded volume between segments, depend in a qualitatively obvious way on the polyelectrolyte charge and the solution ionic strength. However, a quantitative und
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8ce8691165fa9347c8c41234c8cb45b
https://doi.org/10.1016/0167-7322(94)00761-6
https://doi.org/10.1016/0167-7322(94)00761-6
Autor:
M. Fixman
Publikováno v:
The Journal of Chemical Physics. 95:1410-1413
It is a widespread assumption that the backbone stress is dominant in polymer melts and concentrated solutions. This work suggests on the basis of Brownian simulations that the assumption is incorrect. The excluded volume stress seems to be much larg
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https://explore.openaire.eu/search/publication?articleId=doi_________::ad1ace91a86e0938fee19671e0afae63
https://doi.org/10.1063/1.461808
https://doi.org/10.1063/1.461808
Publikováno v:
The Journal of Chemical Physics. 61:4939-4949
The dynamics of worm‐like polymer chains is considered for models with constrained bond lengths and elastic or constrained bond angles. Previous work attempted either the representation of the constraints on a complete basis set, which is impractic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03b9d56c077aa23da950ceba43bf69c0
https://doi.org/10.1063/1.1681833
https://doi.org/10.1063/1.1681833
Autor:
M. Fixman
Publikováno v:
The Journal of Chemical Physics. 75:4040-4047
We consider a problem equivalent to the inference of the dipole moment induced in an object by a constant applied field. The object has an arbitrarily distributed dielectric tensor and is immersed in the vacuum. A variational expression for the polar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47e2b7ff91f5bbe73cdaf8d41b13977e
https://doi.org/10.1063/1.442562
https://doi.org/10.1063/1.442562
Autor:
S. Jagannathan, M. Fixman
Publikováno v:
The Journal of Chemical Physics. 75:4048-4059
The calculation of the dipole moment induced in the ion atmosphere of a cylindrical macroion is divided into two parts: first, the polarization in the absence of relative motion between the macroion and the solvent, and second, the convective polariz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3341057140093da7906e8f1b704e19e
https://doi.org/10.1063/1.442563
https://doi.org/10.1063/1.442563
Autor:
M. Fixman, Daniel Zeroka
Publikováno v:
The Journal of Chemical Physics. 48:5223-5230
Helix–coil transition curves are calculated for heterogeneous chains with random and correlated sequences of residue types by an approximate method. The distinction is made between the a priori probability of a residue sequence, and an effective pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3972361dde3d96d6abbe7d7c9b79918a
https://doi.org/10.1063/1.1668198
https://doi.org/10.1063/1.1668198
Autor:
M. Fixman, C. W. Pyun
Publikováno v:
The Journal of Chemical Physics. 41:937-944
The coefficient ks is calculated in the expression for the frictional coefficient f=f0(1+ksc+···), where f0 is the frictional coefficient at infinite dilution, and c is the concentration. Results are given for hard spheres and for interpenetrable
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https://explore.openaire.eu/search/publication?articleId=doi_________::cb5bbf9cbcadf0762544a3911a8f92ff
https://doi.org/10.1063/1.1726036
https://doi.org/10.1063/1.1726036
Publikováno v:
The Journal of Chemical Physics. 42:199-204
A theory is based on a dynamic heat capacity associated with long‐wavelength density fluctuations in the critical region. Evaluation of the dynamic heat capacity requires the time‐dependent response of the long‐range radial distribution functio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d218e22e7c356dbae03aa9c8bacc87d
https://doi.org/10.1063/1.1695672
https://doi.org/10.1063/1.1695672