Abstract In allusion to the problem of common rail pressure fluctuation when high-pressure system (CRS) using double rails, a numerical simulation model V-type 8-cylinder engine CRS was established by AMESim software, and suppression with without distributor studied. The optimum structure dimension length 100 mm inner diameter 9 obtained uniform design method. Then surge characteristics researc...

PURPOSE We compared the fluctuation of intraocular pressure (IOP) in normal-tension glaucoma (NTG) patients and individuals with nonglaucoma eyes. We obtained continuous IOP values using a SENSIMED Triggerfish contact lens sensor. MATERIALS AND METHODS The eyes of 12 nonglaucoma subjects and 14 NTG patients were examined. In all 26 subjects, the IOP fluctuation was measured continuously for 2...

Fluctuations in nonequilibrium steady states generically lead to power law decay of correlations for conserved quantities. Embedded bodies which constrain fluctuations, in turn, experience fluctuation induced forces. We compute these forces for the simple case of parallel slabs in a driven diffusive system. Our model calculations show that the force falls off with slab separation d as kBT/d (at...

The Brown Norway (BN) rat is normotensive and has an extended lifespan but is extremely sensitive to hypertension-induced renal injury. Relative impairment of autoregulation has been implicated in the progression of renal failure whereas absence of myogenic autoregulation is associated with early renal failure. Therefore, we tested the hypothesis that there is conditional failure of renal autor...

The "rules" governing protein structure and stability are still poorly understood. Important clues have come from proteins that operate under extreme conditions, because these clarify the physical constraints on proteins. One obvious extreme is pressure, but so far little is known of the behavior of proteins under pressure, largely for technical reasons. We have therefore developed new methodol...

PURPOSE To propose an alternative method to characterize postocclusion surge using a collapsible artificial anterior chamber to replace the currently used rigid anterior chamber model. SETTING Fundación Oftamológica Los Andes, Santiago, Chile. METHODS The distal end of a phacoemulsification handpiece was placed inside a compliant artificial anterior chamber. Digital recordings of chamber pr...

Direct numerical simulations are used to investigate the effect of Mach number on the unsteady flow of an open cavity. The implicit solution is obtained for the compressible Navier-Stokes Equations using compact sixth-order spatial differencing coupled with tenth-order implicit filters. Results for transonic and subsonic flow over a two dimensional cavity are presented for the sound pressure le...

This paper aims to describe the complete characterization of aero-acoustic sources, with specific attention to turbulent jet flows with a new approach. The traditional way to tackle fluid dynamic phenomena is to measure the velocity field by means of Laser Doppler Anemometer, Particle Image Velocimetry with the main drawback due to the need of seeding the flow. To overcome that problem the 3D s...