W dniach od 2 kwietnia do 5 kwietnia 2024 r. prowadzone będą prace związane z wdrożeniem nowej wersji systemu Repozytorium UJ. Nie będzie możliwe wprowadzanie nowych informacji do repozytorium. Za utrudnienia przepraszamy.
Structure and transport properties of ethylcellulose membranes with different types and granulation of magnetic powder
pl
dc.type
JournalArticle
pl
dc.description.physical
241-250
pl
dc.abstract.en
Structure and transport properties of ethylcellulose membranes with dispersed magnetic powder were investigated. The study mainly focused on diffusion, which is one of the transport mechanisms. The transport properties depend on many parameters like: polymeric matrix used, type of powder, its amount and granulation. The structure of the pattern formed by magnetic particles in the membrane matrix was studied. Description of the system was based on the phenomenological and molecular (random walk on a fractal lattice) approaches. Two parameters were calculated: the fractal dimension of random walk d_{w}, and the fractal dimension of membrane structure d_{f}. The knowledge of both parameters made it possible to use the generalized equation of diffusion on the fractal structure obtained by Metzler et al. The research was carried out to determine the influence of magnetic powder granulation on the transport properties. The results showed that the random walk within the membranes of the smallest magnetic powder granulation was of the most subdiffusive character. Detailed investigation and quantitative description of gas transport through the membranes enables designing the membranes to be used in air oxygen enrichment.
pl
dc.subject.en
diffusion on fractals
pl
dc.subject.en
fractal dimension
pl
dc.subject.en
magnetic membranes
pl
dc.subject.en
random walk
pl
dc.description.volume
452
pl
dc.identifier.doi
10.1016/j.physa.2016.02.032
pl
dc.identifier.eissn
1873-2119
pl
dc.title.journal
Physica. A, Statistical Mechanics and its Applications
pl
dc.language.container
eng
pl
dc.affiliation
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
pl
dc.subtype
Article
pl
dc.rights.original
bez licencji
pl
.pointsMNiSW
[2016 A]: 30
Pliki tej pozycji
Plik
Rozmiar
Format
Przeglądanie
Nie ma plików powiązanych z tą pozycją.
Pozycja umieszczona jest w następujących kolekcjach