Objecties: To determine whether displacement of fluid from the lower body to the neck will increase both neck circumference and Rph in healthy subjects.
The blood volume of microcirculation is in direct proportion to the dp of arteriole and veinule,and in inverse proportion to the whole resistance of microcirculation.
Objective To observe pulsative index (PI), resistant index (RI) of placental helicine arteries by colour Doppler, analyses relation between PI, RI and developing of pregnant hypertension.
Widely used in air purification for hospital mortuary, zootomy room, police corpse inspection room etc. Low sorption pressure with high speed, complete and fast sorption relief.
Right after the dental extraction,the interseptal bone distal to the canine was undermined to weaken its resistance and a tooth-borne appliance was used to retract the tooth rapidly.
An investigation on dusted airflow distribution in gas chamber of multicyclone has been carried out by using the principle that the resistance of dusted airflow in it would keep equilibrium.