A fluorescent dye dissolved in the liquid phase allows to identify in-plane bubbles among all visible bubbles in the images.
These measurements were used to observe the wake region of a bubble, lateral drift as the bubble rises, and in-plane bubble coalescence.
Plane Taylor bubbles with correct and incorrect tip angles are numerically generated for the case of zero surface tension (s.t).
Consequently, a bubble can be easily selected at the so-called stationary plane, where bubble electrophoresis measurements are conducted.
The mTT is a measure of time needed to replenish the imaging plane with fresh bubbles following destruction by ultrasonic flash and is inversely proportional to blood flow velocity; mTT is expressed in seconds.
This was especially true of the candidate's traveling orbit — "the plane" or "the bubble," as it is known in campaign shorthand.
It had a fighter plane's plastic bubble-roofed cockpit with a little spire antenna, three tail fins and wheels that were tucked well out of sight, perhaps because the designers were embarrassed that it did not fly.
It's not the stomach-in-your-throat feeling you get on roller coasters, because the velocity of the plane creates a bubble that cushions you, but the pressure makes it hard to breathe.
The new set-up tracks the mass transferred in the bubble wake for a plane perpendicular to the bubble trajectory instead of a parallel plane as in previous works, thus avoiding optical reflection problems.
Though they use familiar elements (planes, toys, flowers and bubbles), an image "reveals itself as it moves," said Cressida Granger, the managing director of Mathmos.
They delivered a design for a 180-passenger plane, dubbed the "double bubble " series, which could serve as a replacement for the Boeing 737-class aircraft that are widely used for short-haul flights.
