Given an electrical circuit each edge e of which is an isotropic conductor with a monomial conductivity function y∗ e = y r e/μ s e. In this formula, ye is the potential difference and y ∗ e current in e, while μe is the resistance of e; furthermore, r and s are two strictly positive real parameters common for all edges. In particular, the case r = s = 1 corresponds to the standard Ohm law. In ...

In this paper we calculate the interfacial resistances to heat and mass transfer through a liquid-vapor interface in a binary mixture. We use two methods, the direct calculation from the actual nonequilibrium solution and integral relations, derived earlier. We verify, that integral relations, being a relatively faster and cheaper method, indeed gives the same results as the direct processing o...

In response to hypertension, arterioles remodel their structure, the heart develops myocardial hypertrophy, and the kidney reduces creatinine clearance and increases albuminuria. To better understand the interrelations among the target organs involved in hypertension, we evaluated minimal forearm vascular resistances--a hemodynamic index of arteriolar structure derived from mean blood pressure ...

Currently, many authors have studied the uniform axisymmetric pressure head laminar and turbulent movement of water in hydraulic smooth rough (with roughness) pipes circular cross-section. The results obtained study a plane-parallel flow channels allow here only to outline structure corresponding dependencies clarify simplest case unpressurized fluid movement, when this can also be reduced or, ...

To examine the actions of angiotensin II on regional vascular resistances, we monitored regional blood flows and cardiac output with transit-time flow probes and thermodilution, respectively, in anesthetized rats. To remove the influence of endogenous angiotensin II, rats were pretreated with captopril (30 mg/kg intravenously). Intravenous infusions of angiotensin II were used to produce circul...

Ten subjects underwent treadmill exercise at 5.6 km/h over one hour while wearing each of three identical appearing, cup-shaped, prototype filtering facepiece respirators that differed only in their filter resistances (3 mm, 6 mm, and 9 mm H2O pressure drop). There were no statistically significant differences between filtering facepiece respirators with respect to impact on physiological param...

It has been demonstrated that respiratory resistance and elastance increase whilst the abdomen remains open during longitudinal laparotomy. We wished to determine whether changes also occur after abdominal closure in the same animal preparation. In 10 sedated, anaesthetized paralysed, and mechanically-ventilated rats (309 +/- 33 (SD) g), resistances and elastances of the respiratory system, lun...