In particular, the bubble size ( and more generally, the asset price ) was highly correlated by the excess cash in the system, and momentum was also shown to be a factor [ 19 ].
22.
In a conventional mechanically-agitated cell, the void fraction ( i . e . volume occupied by air bubbles ) is low ( 5 to 10 percent ) and the bubble size is usually greater than 1 mm.
23.
The enrichment and recovery depend on the hydrodynamic condition of the rising foam, which is a complex system dependent upon bubble size distribution, stress state at the gas-liquid interface, rate of bubble coalescence, gas rate " inter alia ".
24.
In a conventional mechanically agitated cell, the void fraction is low ( 5 10 % ) and the bubble size is large ( 2 3 mm ), which results in a low interfacial area with a low probability of particle bubble contact.
25.
There's no " bubble size x force = constant " equation implying infinite force at infinitesimal size, but rather " ( negative pressure x volume of bubbles ) + ( pressure x volume of air ) = 0 " which means the bubble " force " could only be infinite if the air pressure at the top were infinite.