Fractal analysis of suspended particles in seawater (CROSBI ID 80877)
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Martinis, Mladen ; Risović, Dubravko
engleski
Fractal analysis of suspended particles in seawater
Light-scattering data of suspended clusters of particles in seawater have been analysed to find some evidence for fractal structure of the scatterers. The behaviour of the scattering intensity I(q) as a function of q suggests that the scattering medium consists of two kinds of particles, large ones, with fractal dimension 1.7 ą0.1, resulting from a regular DLCA growing process, and smaller ones, with a considerably larger fractal dimension 2.7 ą0.4, resulting from a more complex cluster-cluster aggregation process in which low sticking probabilities, restructuring and settling could be present. This conclusion is strongly supported by the I(q) curve which, in a log-log plot, exhibits two well defined linear regions. In interpreting data, it is assumed that the polydispersity of the scatterers is described by a smooth two-component particle-size distribution. The fractal structure of the scatterers is described by the behaviour of the scattering intensity from clusters of different size.
fractal dimension; suspended clusters of particles; light scattering; seawater
nije evidentirano
hrvatski
Fraktalna analiza lebdećih čestica u morskoj vodi
Analizirali su se eksperimentalni podaci za raspršenje svjetlosti na grozdovima lebdećih cestica u morskoj vodi s ciljem otkrivanja fraktalne strukture raspršivača. Ovisnost intenziteta raspršenja I(q) o q sugerira da se raspršivači sastoje od dvije vrste čestica, velikih s fraktalnom dimenzijom 1.7 ± 0.1, koje su posljedica DLCA procesa rasta, i manjih s većom fraktalnom dimenzijom od 2.7 ± 0.4, koje su posljedica složenije g grozd-grozd procesa rasta. Pri objašnjenju eksperimentalnih podataka pretpostavljena je dvokomponentna raspodjela grozdovskih veličina.
fraktalna analiza; lebdeće čestice; morska voda
nije evidentirano
