Ultrasoundndi mtundu wa zotanuka mechanical wave in material medium. Ndi mawonekedwe ozungulira. Choncho, angagwiritsidwe ntchito kudziwa zokhudza thupi ndi pathological zambiri za thupi la munthu, ndiko kuti, matenda ultrasound. Panthawi imodzimodziyo, imakhalanso mtundu wa mphamvu. Pamene mlingo wina wa ultrasound propagates mu zamoyo, mwa mogwirizana, zingachititse kusintha kwa ntchito ndi dongosolo la zamoyo, ndiko kuti, akupanga kwachilengedwenso kwenikweni.

Zotsatira za ultrasound pa maselo makamaka monga matenthedwe zotsatira, cavitation zotsatira ndi makina kwenikweni. The matenthedwe zotsatira ndi kuti pamene ultrasound propagates sing'anga, ndi kukangana amalepheretsa maselo kugwedera chifukwa ndi ultrasound ndi otembenuka mbali ya mphamvu mu m'dera kutentha mkulu (42-43 ℃). Chifukwa kutentha koopsa kwa minofu yachibadwa ndi 45.7 ℃, ndipo kukhudzika kwa minofu ya Liu yotupa ndipamwamba kuposa minofu yachibadwa, kagayidwe ka maselo a Liu otupa amawonongeka pa kutentha kumeneku, ndipo kaphatikizidwe ka DNA, RNA ndi mapuloteni amakhudzidwa, motero kupha maselo a khansa popanda kukhudza minofu yabwino.

Cavitation tingati pansi akupanga walitsa, vacuoles amapangidwa mu zamoyo. Ndi kugwedezeka kwa ma vacuoles ndi kuphulika kwawo kwachiwawa, kukameta ubweya wamakina ndi chipwirikiti zimapangidwira, zomwe zimapangitsa kutupa kwa Liu kutuluka magazi, kupasuka kwa minofu ndi necrosis.

Komanso, kuwira cavitation ikasweka, umapanga yomweyo mkulu kutentha (pafupifupi 5000 ℃) ndi kuthamanga (mpaka 500 ℃) × 104pa), amene akhoza kupangidwa ndi matenthedwe dissociation wa nthunzi wa madzi OH kwakukulu ndi H atomu, ndi OH kwakukulu ndi The redox enzyme kungachititse kuti Hmer atomtiation anachita, lipid peroxidation ndi kupha maselo.

报错 笔记