Elasto-electric longitudin harmonic waves in porous long bones filled with physiological fluid

• Autorzy: Uklejewski R.

Warianty tytułu

PL

Podłużne harmoniczne fale sprężysto-elektryczne w porowatych kościach długich wypełnionych płynem fizjologicznym

• Języki publikacji: EN

Abstrakty

EN

Transmission of elasto-electric longitudinal harmonic waves in porous long bones filled with physiological fluid is investigated. The complete set of equations of the problem is obtained on the basic of the Biot theory of elastic waves in fluid-saturated porous media and the linear equations of electrokinetics, by means of quantities analogous to those in the theory of electrical transmission lines. Experimental findings from the biomechanical literature, supporting applicability of the proposed description, are presented. The electric signal associated with the propagation of longitudinal elastic waves in a wet long bone shaft can potientially be used for monitoring these waves during their application in e.g. bone porosity measurements.

PL

Przedmiotem pracy jest zagadnienie transmisji sprężysto-elektrycznych podłużnych fal harmonicznych w porowatych kościach długich wypełnionych płynem fizjologicznym. Zbiorczy układ równań zagadnienia wyprowadzono na podstawie Biotowskiej teorii propagacji fal sprężystych w ośrodkach porowatych nasyconych cieczą oraz liniowych liniowych równań elektrokinetyki, stosując opis za pomocą wielkości analogicznych do stosowanych w teorii elektrycznych linii przesyłowych. Uzasadniono przydatność zaproponowanego modelu teoretycznego przywołując z literatury wyniki badań eksperymentalnych dotyczące bioelektromechaniki kości. Sygnał elektryczny towarzyszący propagacji podłużnych fal sprężystych w trzonie kości długiej nasyconej płynem fizjologicznym mógłby, przypuszczalnie, zostać użyty celem monitorowania tych fal w zastosowaniu ich np. do pomiaru porowatości kości.

Słowa kluczowe

EN

cortical bone; Biot's poroelasticity; electrokinetics; elasto-electric waves

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 1998
• Tom: nr 3
• Strony: 819--838
• Opis fizyczny: Bibliogr. 43 poz., rys.

Twórcy

autor

Uklejewski R.

• Department of Environmental Mechanics, Pedagogical University of Bydgoszcz
• Medical University of Poznan, Clinical Hospital 1

Bibliografia

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