A hardly known and very important result of Kreiss is proven explicitly: Outflow boundary extrapolation, which complements stable dissipative schemes for linear hyperbolic initial value problems, maintains stability. In view of this result, the Lax-Wendroff and the Gottlieb-Turkel schemes are applied to a test problem. As expected from the rate-of-convergence theory by Gustafsson, global order ...

Direct administration of cyclic-AMP into the anterior chamber increases the outflow facility of the eye for aqueous humor. This is consistent with the hypothesis that catecholamines lower the intraocular pressure of the rabbit eye, at least in part, by a cyclic-AMP-mediated mechanism. This mechanism is active in the outflow channels and increases the rate at which aqueous humor leaves the anter...

PURPOSE To study the effects of nipradilol, a nonselective beta-blocker with alpha 1-blocking activity and nitroglycerin-like activity, on aqueous humor dynamics and optic nerve head (ONH) circulation in albino rabbits. METHODS Experiments were carried out during the dark phase, in conscious rabbits conditioned to a schedule of alternating 12-hour periods of light and dark. The blood-aqueous ...

In laboratory experiments, the influence of inflow and outflow sequences on the behavior of fine sediment was investigated. The experimental set-up consisted of two interconnected rectangular basins, between which water was moved back and forth. Suspended sediment concentration in the main basin as well as the sediment exchange rates were derived from turbidity measurements.The suspended sedime...

Isolated stellar-mass BH accrete gas, often at supersonic speeds, and can form outflows that influence the accreted gas. The latter process, known as mechanical feedback, significantly affect accretion rate. We use hydrodynamical simulations to assess impact of feedback on rate when moves supersonically through a uniform medium. carry out 3D fueled by interact with medium, probing scales simila...

ABSTRACT We present the analysis of absorption troughs six outflows observed in quasar SDSS J1130 + 0411 ($z$ ≈ 3.98) with radial velocities ranging from −2400 to $-15\, 400$ km s−1. These spectra were taken Very Large Telescope/Ultraviolet and Visual Echelle Spectrograph over rest-frame wavelength range 1135–1890 Å. In main outflow system ($v$ −3200 s−1), we identify Fe ii several ii* troughs,...

We report F U SE far-UV spectroscopy of the prototypical dwarf starburst galaxy NGC 1705. These data allow us for the first time to directly probe the coronal-phase (T = few ×10 5 K) gas that may dominate the radiative cooling of the supernova-heated ISM and thereby determine the dynamical evolution of the starburst-driven outflows in dwarf galaxies. We detect a broad (∼100 km s −1 FWHM) and bl...

Right ventricular outflow tract obstruction was relieved by placing outflow patches across the pulmonary annulus in 39 of 195 patients who underwent total correction of tetralogy of Fallot. The mortality rate in these 39 patients was 12.8%, which did not differ significantly from the overall mortality of 11.3% (p = 1.00). The ratio of the pulse pressure to pulmonary artery systolic pressure as ...