A method is described that estimates the error in the static pressure measurement on an aircraft from differential pressure measurements on the hemispherical surface of a Rosemount model 858AJ air velocity probe mounted on a boom ahead of the aircraft. The theoretical predictions for how the pressure should vary over the surface of the hemisphere, involving an unknown sensitivity parameter, lea...

Vol. 24, No. 8 August 2012 207 Abstract: Numerous pressure-relieving surfaces of varying costs are available for the prevention of pressure ulcers. There is insufficient evidence to draw conclusions regarding the efficacy or merits of using more expensive technologies. The purpose of this unblinded, randomized, prospective study was to compare the clinical and the cost effectiveness of an infla...

Fast identification methods of pressure sensors are investigated. With regard to a complete accurate sensor parameter identification two different measurement methods are combined. The approach consists on one hand in performing static measurements – an applied pressure results in a membrane deformation measured interferometrically and the corresponding output voltage. On the other hand optical...

A series of supersonic wind tunnel tests on an ogive-cylinder body were performed to investigate the pressure distribution, the boundary layer profiles, and the flow visualization at various angles of attack. All tests were conducted in the trisonic wind tunnel of the Imam Hossein University. The theoretical shock angle at different model positions compared well with those we obtained via Schi...

jet impingement heat transfer is an effective and practical approach that is employed in many industrial processes where heating, cooling, or drying is required. details of the heat or mass transfer rate have been investigated both experimentally and numerically and can be found in the published literature. in most of the numerical studies, control-volume approach has been employed to solve the...

We report on a detailed investigation of the electronic phase diagram of FeSe1-x under pressures up to 1.4 GPa by means of ac magnetization and muon-spin rotation. At a pressure approximately 0.8 GPa the nonmagnetic and superconducting FeSe1-x enters a region where static magnetic order is realized above T{c} and bulk superconductivity coexists and competes on short length scales with the magne...

OBJECTIVE A bolus infusion of 7.2% saline in 6% hydroxyethyl starch 200/0.5 (HS) attenuates static intracranial pressure (mean ICP) in subarachnoid hemorrhage patients. This study addressed how HS affects intracranial pulsatility, which is more indicative of intracranial compliance than static ICP. DESIGN Retrospective analysis of prospectively collected data. SETTING Intensive care unit in...

In multidisciplinary studies carried out in the Budare Oil Field of the Great Oficina Oil Field, there was difficulty matching well log synthetic seismograms with 2D and 3D seismic data. In addition, the seismically determined depths of reservoir horizons are greater than the well sonic log depths. To examine this discrepancy we conducted an experimental study of dynamic elastic parameters of t...

Intelligent Transportation System (ITS) is one of the most important urban systems that its functionality affects other urban systems directly and indirectly. In developing societies, increasing the transportation system efficiency is an important concern, because variety of problems such as heavy traffic condition, rise of the accident rate and the reduced performance happen with the rise of p...

The objective of this research was to evaluate several different pressure probe techniques used to measure the pressure fluctuations in a fluidized bed, to determine the effect of bed parameters on the power spectrums from the corresponding pressure fluctuations, and to develop a second-order model that describes the power spectrums of these pressure fluctuations. The motivation for this work i...