image processing software flowexpert2d2c  (KOKEN CO)

Journal: Infection Prevention in Practice

Article Title: Investigations into the efficacy of a novel extubation-aerosol shield: a cough model study ☆

doi: 10.1016/j.infpip.2021.100193

Figure Lengend Snippet: Wind vectors determined using the particle imaging velocimetry system . The movement of scattered particles illuminated by the green laser sheet was recorded automatically just before extubation to 15 s after extubation using image processing software (FlowExpert2D2C, Kato Koken) with a particle image velocimetry system, to which the successive abandonment method was applied for improvement. The movement of particles was changed to vectors with colour graduation based on their velocity levels via this software. The reference area was set as 640 × 480 pixels to 18.7 × 14.0 cm. The maximum error in the measurement of the velocity vector was estimated to be 0.23 m/s in our model. There was no wind at 0.3, 0.5, or 1 s after extubation in group H. In contrast, in group M, the wind was emitted from the space between the face mask and the mannequin's mouth after extubation, and the wind vectors were mainly to the right of the mannequin. (I) Group H and (II) group M. Wind vectors are shown at (a) 3 s, (b) 5 s, and (c) 10 s after the cough simulation.

Article Snippet: Vector analysis was performed using software FlowExpert2D2C (Kato Koken, Isehara, Japan).

Techniques: Imaging, Software, Plasmid Preparation