Structural, electronic, optical, and mechanical properties of cubic SnZrO3 SnHfO3 have been studied under different hydrostatic pressures within the framework density functional theory. A strong atomic interaction resulting from a considerable drop in lattice parameter bond length was observed. The Sn–O Hf/Zr–O showed ionic weak covalent characteristics, respectively, strengths are found to enh...

This paper investigates the influence of rotor coaxiality error on spindle accuracy under different operating conditions in precision hydrostatic with a mid-thrust bearing structure. Firstly, linearized model dynamics equation five degrees-of-freedom is established based Newton’s law motion and angular momentum principle. Then, by solving Reynolds flow continuity using mathematical perturbation...

Conventional hydrostatic barium reduction or pneumatic reduction of intussusception is associated with considerable ionizing radiation. The aim of this study was to evaluate ultrasound-guided hydrostatic reduction for childhood intussusception using water enema. A total of 76 children who diagnosed as having intussusception were referred to Doctor Sheikh Children Hospital in Mashhad (northeast ...

Generalized hydrostatic and geostrophic equations can be derived from the equations in the terrain-following framework. The generalized hydrostatic equation permits some non-hydrostatic motions (as obtained from a Cartesian framework) to remain when a non-zero slope exists. Correspondingly, the generalized geostrophic wind permits a horizontal divergent component (in addition to divergence caus...

Cells of the terrestrial plant species bromegrass (Bromus inermis L.) are not naturally adapted to withstand the hydrostatic pressures encountered in aquatic environments. However, after treatment with the natural plant growth hormone abscisic acid (75 micromolar), bromegrass cells survived a hydrostatic pressure of 101.3 megapascals, approximating the limits of ocean depth (10,860 m). The incr...

Background Hydrostatic lung edema is a characteristic complication of acute left-sided ventricular or valvular heart failure that if untreated has a high mortality due to the resulting respiratory failure. Traditionally, formation of hydrostatic lung edema has been attributed to an imbalance of Starling forces, i.e. transcapillary hydrostatic and oncotic pressure in the pulmonary circulation re...

We sought to determine whether hydrostatic pressure contributed to bradycardia and hypoventilation in hyperbaria. Eight men were studied during exercise at 50, 150, and 250 W while breathing 1) air at 1 bar, 2) helium-oxygen (He-O(2)) at 5.5 bar, 3) sulfur hexafluoride-oxygen (SF(6)-O(2)) at 1.3 bar, and 4) nitrogen-oxygen (N(2)-O(2)) at 5.5 bar. Gas densities were pairwise identical in 1) and ...

Hypoxia-inducible factor (HIF)-2α is considered to play a major role in the progression of osteoarthritis. Recently, it was reported that pressure amplitude influences HIF-2α expression in murine endothelial cells. We examined whether hydrostatic pressure is involved in expression of HIF-2α in articular chondrocytes. Chondrocytes were cultured and stimulated by inflammation or hydrostatic press...