Video: Qhov nruab nrab viscosity ntawm cov ntshav yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Li qub qib
Hauv pascal-seconds (Pa·s), lub ntshav viscosity ntawm 37 ° C feem ntau yog 3 × 10−3 rau 4 × 10−3, feem 3 - 4 centipoise (cP) hauv centimeter gram thib ob ntawm cov koog. Ntshav viscosity tuaj yeem ntsuas los ntawm viscometers muaj peev xwm ntsuas ntawm ntau qhov kev txiav tawm, xws li lub viscometer tig.
Xav txog qhov no, qhov viscosity ntawm cov ntshav txhais li cas?
Ntshav viscosity yog ib qho kev ntsuas ntawm lub thickness thiab stickiness ntawm tus neeg ntshav . Nws yog ib qho kev ntsuas ncaj qha ntawm lub peev xwm ntawm ntshav ntws los ntawm ntshav cov nkoj. Ua kom siab ntshav viscosity yog ib tug muaj zog ywj siab kwv yees ntawm cov kab mob plawv.
Tsis tas li, yam twg yuav nce ntshav viscosity? Ob qhov tseem ceeb tshaj plaws ntawm kev txiav txim siab ntshav viscosity yog cov qib hematocrit thiab fibrinogen. Hauv cov neeg mob nrog hematocrits nyob rau thaj tsam ntawm 47-53%, txo qis ntawm hematocrit los ntawm phlebotomy mus rau qis dua 40% tuaj yeem nce ntxiv paj hlwb ntshav ntws los ntawm ntau npaum li 50%.
Hauv qhov no, puas yog cov ntshav hloov pauv?
Nce viscosity ua rau kom tsis kam rau ntshav ntws thiab yog li ua rau kev ua haujlwm ntawm lub plawv thiab ua rau lub cev tsis zoo. viscosity nce txog 2% rau txhua qib qis dua qhov ntsuas kub. Nquag, ntshav kub ua tsis hloov ntau hauv lub cev.
Dab tsi yog qhov tseem ceeb ntawm cov ntshav viscosity rau kev noj qab haus huv?
Nws tsis tau txais kev saib xyuas ntau npaum li cov roj cholesterol lossis ntshav siab, tab sis ntshav viscosity , los yog ntshav tuab, ua si ib tseem ceeb lub luag hauj lwm hauv plawv noj qab haus huv . Raws li a noj qab haus huv tshaj tawm los ntawm Tsev Kawm Qib Siab Harvard, cov neeg muaj tuab, ntau dua ntshav khov tej zaum yuav muaj kev pheej hmoo ntau dua rau kev mob plawv lossis mob plawv.
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