The 2D color Doppler, 3D color Doppler and continuous wave Doppler quality was excellent whether the data were acquired from the imaging window parallel or perpendicular to the long-axis of flow.
The y-axis of flow cytometry data is presented as a relative count of cells, where each data set is fit to have equivalent maximum peak heights in order to facilitate visual comparison between samples.
Piezometers are situated transverse to the axis of groundwater flow: two upstream and three downstream the landfill (referring to the water flow direction).
All measurements of aortic diameter should be obtained perpendicular to the axis of blood flow [31].
In Korea, the severe accident management guideline for KSNP was recently developed and it is expected to be a central axis of logical flow for severe accident management.
The lower end of this parabolic region, however, is not a no-slip wall, but a moving granular bed, which causes the symmetry axis of the flow profile to shift from h f /2 to a lower position.
Obtaining such a plane ensures that annular area and diameter measurements are obtained perpendicular to the axis of blood flow in LVOT and aorta as has been described for aortic measurements.
It also allows for pulmonary artery maximal and minimal cross-sectional area measurement to be made perpendicular to the axis of blood flow, useful in identifying distensibility (Fig. 1d) [1].
After 2 min of washout, video recordings lasting ∼20 s were made of a series of fields of known area along the central axis of the flow chamber.
