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FME Transactions
2014, vol. 42, br. 1, str. 74-81
Modelovanje bioimpedanse ljudske kože primenom distribuiranog necelog reda modifikovanog kole modela
Lazović Goran ORCID, Vosika Zoran, Lazarević Mihailo ORCID, Simić Krstić Jovana, Koruga Đuro
Univerzitet u Beogradu, Mašinski fakultet, Srbija

e-adresa: glazovic@mas.bg.ac.rs
Projekat:
Razvoj novih metoda i tehnika za ranu dijagnostiku kancera grlića materice, debelog creva, usne duplje i melanoma na bazi digitalne slike i ekscitaciono-emisionih spektara u vidljivom i infracrvenom domenu (MPNTR - 41006)

Ključne reči: human skin; fractional calculus; Cole model; frequency analysis; electric impedance
Sažetak
Eksperimentalni podaci otpornosti i računa necelobrojnog reda koriste se za modeliranje bioimpedansnih osobina ljudske kože. Uveli smo i predložili modifikovani Kole model koristeći pri tom operator distribuiranog necelog reda koji je zasnovan na Caputo-Weyl-ovim izvodima necelog reda.Naš predloženi model predstavlja izmenjen jedno-disperzijski Kole model, jer uvodi nove parametre k i σ u jedno-disperzijskoj Kole impedansnoj jednačini. Ovi parametri karakterišu širinu intervala oko frakcionog indeksa α i oni su važni za precizniji opis bioimpedansnih osobina ljudske kože. Predloženi modifikovani Kole model mnogo bolje daje fitovanje date eksperimentalne krive u datom frekventnom opsegu u poređenju sa sa postojećim Kole modelima. Fitovanje je urađeno primenom Levenberg-Marquardt algoritma nelinearnih najmanjih kvadrata.
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O članku

jezik rada: engleski
vrsta rada: neklasifikovan
DOI: 10.5937/fmet1401075L
objavljen u SCIndeksu: 18.02.2014.
Creative Commons License 4.0

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