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Due to the volumetric compressibility of air, the usage of linear models as a mean to describe the behavior of pneumatic vibration isolators is often justified given the range of parameter settings of characteristic system properties. Outside this range, the nonlinear behavior may quickly prevail over the linear behavior. In this paper, a nonlinear model of pneumatic vibration isolator was established,...
The rates at which ferric ion is removed from the two metal binding sites of the serum iron transport protein transferrin by ethylenediaminetetra(methylenephosphonic acid) (EDTP) and ethylenediaminetetraacetic acid (EDTA) have been evaluated. Solutions were buffered at pH 7.4 by 0.1 M N-2-hydroxyethylpiperazine-N -2-ethanesulfonic acid and maintained at 25°C. Pseudo first-order rate constants as...
Chronic episodic hypoxia produces a wide array of cardiovascular dysfunctions in rats, including increases in blood pressure, heart rate, and sympathetic nerve activity. The action of episodic hypoxia might be related to low oxygen itself (hypoxemia) and/or combined with low CO 2 (hypocapnia) resulting from hyperventilation. It is unknown whether or not the cardiovascular abnormalities are...
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