Ko te āhuatanga rheological o toto - he aha te mea te reira?

Rehe, Akoranga te deformation me rere āhuatanga o auroa tūturu, tetahi o nga māngai o nei - fluids kore-Newtonian he pokey hanganga, protrudes rheology. I roto i tenei tuhinga whakaaro tatou nga āhuatanga rheological o toto. He aha te mea te reira, ka riro te reira mārama.

whakamāramatanga

He inu angamaheni kore-Newtonian - toto. Wē te huaina ai, ki te he te reira kowaiwai o huānga puka. Toto serum he wē, e te hapa pūtaitoto.

Hemorheology rheology ranei, tauira te tūhura i mīhini, i roto i te ngā rite te āhuatanga toto tohanga huringa fizkolloidnye i kīia e rerekē, me te i roto i ngā wāhanga rerekē o te oko moenga. Ko tōna āhuatanga, te āhua mahi o te bloodstream, te kaha contractile o te ngakau whakatau te kaupapa o toto i roto i te tinana. A, no te he iti te tere rārangi o te rere, e ngā te matūriki toto whakarara ki te tuaka o te oko, me te ki tahi i te tahi. I roto i tenei take, ka karanga te āhua paparanga o te rere, me te rere te laminar. Na te aha e nga āhuatanga rheological? I runga i tenei - i runga i.

He aha te mea Reynolds Number?

I roto i te take o te whakanui ake i te tere rārangi, me te nui atu i te uara etahi, rerekē hoki oko katoa, ka meinga rere laminar te vortex, whakahaere i karangatia e arepurepu. Te rere laminar tere whakawhiti ki ririhau whakatau tau Reynolds mo te oko toto whakatu āhua 1160. E ai ki tau Reynolds taea arepurepuraa e anake i roto i nga wahi i reira oko nui kouru, me rite i roto i te haoraora. Hoki oko maha laminar nekehanga inu.

Te tere me te ahotea kutikuti

Ko e kore noa te rōrahi me te rārangi tere rere toto nui, e rua atu tawhā nui tohu i te kaupapa ki te oko: te tere me te ahotea kutikuti. Āhuatanga e kaha neke ngaohiko mahi i runga i te wae mata iaia i roto i te ahunga tangential ki te mata, whanganga i roto i Pascals dynes ranei / cm ^2. whanganga te auau kutikuti i roto i hēkona kōaro (s-1), me te tikanga o te reira i te nui o te rōnaki tere i waenganui i nga papa faitatau ki te inu neke ia tawhiti wae i waenganui ia ratou.

I aha tawhā he āhuatanga rheological ti'aturi?

Ko te ōwehenga o te ahotea ki te auau kutikuti whakatau te pokey toto, whanganga i mPas. I roto i te katoa pokey inu tei runga i te whānuitanga auau kutikuti o 0.1-120 ^s-1. Ki te te auau kutikuti> 100 ^s-1, e kore te mea pera korerotia te huringa pokey, a ki runga ki te taenga he auau kutikuti o 200 ^s-1 Ko tata tonu. Ko te uara whanganga i te auau kutikuti tiketike, ka karanga te Asymptotic. Ko te āhuatanga tino e pā te pokey - he āhuatanga deformability pūtau, hematocrit me te whakahiato. Na homai te meka e pūtau toto whero whakaritea ki platelets me leukocytes nui atu ratou te nuinga whakatau i te pūtau whero. Ka kitea tēnei i roto i te āhuatanga rheological o toto.

āhuatanga pokey

Ko te take tino nui te whakatau i te pokey - te kukū rōrahi o ngā pūtau toto whero, ratou rōrahi toharite, me te ihirangi, ka karanga i tenei ko te hematocrit. Ko āhua reira 0.4-0.5 l / l, me te whakaritea e te centrifugation o tauira toto. He wē - he wai Newtonian, te pokey o e whakatau te hanganga o te pūmua, me tei te reira i runga i te pāmahana. Ko te nui tino globulins pānga me pūwētoto pokey. Ētahi kairangahau whakapono e te take nui atu e arata'i ki te huringa i roto i te wē pokey - ko te ōwehenga o te pūmua: albumin / pūtaitoto, albumin / globulin. puta whakahiato nui ake ka takoto i te whanonga kore-Newtonian o te toto katoa, hua ngeniwhero whakahiato. whakahiato ngeniwhero whaiaroaro ko te tukanga reversible. Ko te aha te mea reira - te āhuatanga rheological o toto.

erythrocytes Mātauranga māpele tei runga i ngā āhuatanga aunoa, hemodynamic, hiko, wē me etahi atu. I tčnei wā, i reira e rave rahi ariā e whakamārama te huarahi o te ngeniwhero whakahiato. i tenei ra Best mohiotia tūhonoa te ariā o te huarahi e ai te piriti o te pūmua krupnomolekulyarnyh, pūtaitoto, kua adsorbed Y-globulins i runga i te mata o ngā pūtau toto whero. Ko te kaha o te kupenga whakawhāititanga - te rerekētanga i waenganui i te ope kutikuti (ai disaggregation), he apa o erythrocytes repulsion hiko, e e tōraro whakatupato, te mana i roto i nga piriti. Ko te tikanga te kawenga mō te warea o macromolecules tōraro whakatupato i roto i nga pūtau toto whero, arā, Y-globulin, pūwētoto kore he tino mārama, ano. tīariari tatou whakaaro e te rāpoi ngota piri whakawhetai ki titaria te ope o Van der ope Waal, me here hauwai ngoikore.

E tokoni ki te aromatawai i nga āhuatanga rheological o toto?

No te tahi mau take, i reira ko te whakawhāititanga o ngā pūtau toto whero?

Whakamārama o te whakawhāititanga mōtepe pūkete hoki kēkeno, he kore o pūmua tiketike-rāpoi tata ki nga erythrocytes, a reira puta te pēhanga tauhohenga, rite i roto i te āhua ki te kaha osmotic o te otinga macromolecular, ārahi ki te pūtahitanga o te matūriki tārewatia. I tua atu, i reira ko te ariā e hono te whakawhāititanga o ngā pūtau toto whero i ngā āhuatanga ngeniwhero ārahi ki te whakaiti o te pūmanawa Zeta me te huringa i roto i te pākia e me te āhua o ngā pūtau toto whero.

No te mea o te hononga o te pokey me ngeniwhero whakawhāititanga kaha ki te arotake i te toto rheology me rawa te kaupapa o ona oko, e ti'a ia tatou ki te whakahaere i te tātaritanga matawhānui o ngā raraunga mahi. Ko tētahi o nga tikanga tino noa, me te wātea mō te ine whakawhāititanga - he aromatawai o te auau parataiao ngeniwhero. Heoi, no te mea e kore e tangohia e te reira i te putanga tikanga o te whakamātautau, iti ngā mōhiohio, ki pūkete nga āhuatanga rheological.

tikanga o te ine

E ai ki ngā akoranga o te toto āhuatanga rheological me ngā āhuatanga e pā ratou, e nehenehe tatou e faaoti e te aromatawai o ngā āhuatanga rheological o toto pānga te āhua whakahiato. I tčnei wā, e te aufauraa i kairangahau atu whakarongo ki te ako o ngā āhuatanga microrheological o tenei wai, engari ano hoki te hāngaitanga me te viscometry kore ngaro. Ka taea te wehea tikanga Basic mō te ine i ngā āhuatanga o te toto ki e rua ngā rōpū: te mara ahotea me manga ōrite - konusploskost, porohita, porotakaroa me ētahi atu rheometers he geometries rerekē mahi wahi; ki taumahatanga parae, me te whakanuitia ngā inhomogeneous - i runga i te parau tumu o te rēhitatanga o oro, hiko, wiri pūkaha, whakaaro e mahi i runga i te tikanga Stokes, viscometers capillary. Heoi whanganga āhuatanga rheological o toto, wē me te serum.

E rua ngā momo o viscometers

Ko te whānui tino tēnei wā i rua ngā momo o viscometers: takahuri me capillary. Kei te whakamahia hoki Viscometers, whakamatautauria te puoto roto i taritari i te inu. He mātātoa te aro tatou i roto i ngā akatuke'anga rheometer takahuri.

mutunga

Me mahara hoki käore te reira e tino ahunga whakamua o te hangarau rheological āhei tika tatou ki ako i te āhuatanga matüora me Biophysical o toto ki te whakahaere i mikroregulyatsiey i pūkoro me disorders hemodynamic. Otiia, o nāianei i te kau i te whanaketanga o ngā tikanga mo te tātari o hemorheology, e pai tautika whakaata i te whakawhāititanga me ngā āhuatanga rheological o fluids Newtonian.