Abs ract : In the present paper, the development of a high-resolution PIV-PLIF combined system for the simultaneous measurements of velocity and passive scalar concentration fields is described. The high-resolution PIV-PLIF combined system is used to perform the simultaneous whole-field measurements of velocity and concentration in the near field of a turbulent jet mixing flow. The characterist...

BACKGROUND The variability of peroneal reaction time measurements is a major problem when using this parameter to control rehabilitation or proprioceptive training processes. In order to control peroneal reaction time values, some extrinsic factors should be considered. The purpose of this study was to measure peroneal reaction time in unipodal stance for two different destabilization axes. M...

An inverse design process is applied to determine blade shapes used in vertical axis wind turbines (VAWTs). The method is based on the modified Garabedian-McFadden technique that uses the deviation of the pressure distribution or the velocity distribution on the surface from a target pressure or velocity distribution, and modifies the blade surface in order to reduce this deviation. The method ...

Abstract: We introduce a sequential investment strategy, called semi-log-optimal strategy. This strategy is related to the log-optimal portfolio approach, where instead of logarithmic objective function its Taylor series approximation is used. The asymptotic rate of growth is analyzed under the only assumption that the market is stationary and ergodic. The performance of the strategy is compare...

The polarization of the CMBR scattered by galaxy clusters in the kinematic Sunyaev Zeldovich effect depends on the transverse velocity of the cluster. This polarizing effect is proportional to the transverse velocity squared, and so weaker that the change in intensity due to the radial motion in the kinematic effect. The value given by Sunyaev and Zeldovich, and which is frequently cited, under...

This paper is concerned with the benefits of using rotational measurements of a gyroscope in conjunction with optical flow to determine the instantaneous rigid motion. It presents an experimental study focusing on three main aspects: speedup, resolving ambiguities due to local minima and accuracy. For this sake, we developed a method to minimize simultaneously the reprojected optical flow error...

Left ventricular (LV) systolic and diastolic function was studied in 12 subjects with and 12 without coronary artery disease (CAD). Six in each group received the $-blocking agent atenolol, 5 mg i.v., and six received nitroglycerin (NTG), 0.8 mg sublingually. LV cineangiograms were performed in the 400 right anterior oblique projection before and after the drug. Global systolic function was mea...

FIGURE 16-27 Because growth often remains poor despite a functioning renal graft, a large multicenter controlled study was initiated to evaluate the effectiveness of recombinant human growth hormone in stimulating growth in children with a kidney allograft. In all three groups a significantly different growth velocity and change in height SDS occurred during the first year of treatment with gro...

Turbulent flow, characterized by velocity fluctuations, is a contributing factor to the pathogenesis of several cardiovascular diseases. A clinical noninvasive tool for assessing turbulence is lacking, however. It is well known that the occurrence of multiple spin velocities within a voxel during the influence of a magnetic gradient moment causes signal loss in phase-contrast magnetic resonance...