Further, a back pressure was required to prevent bubble formation in the culture chamber but a moderate increase in back pressure was liable to cause leaking.
The endoscopist also estimated the amount of flushing required (none, <50, 50 100, or >100 cc), and this was performed without simethicone except where specifically required to clear bubbles not responsive to standard flushing.
Perhaps; but Japan and Germany show that low interest rates are no protection against a decline in house prices.All that is required to burst the bubble is a change in sentiment.
The lower temperature boundary of the nucleate boiling is determined by the minimum wall superheat (ΔT = 18°C) required to maintain vapor bubble nucleation and growth within the impinging droplets.
In accordance with previous reports, the hydrophobic surface (contact angle greater than 90°) exhibited an earlier ONB than the hydrophilic surface since the free energy required to nucleate a bubble is less for a hydrophobic surface than for a hydrophilic surface [20 23].
The threshold power Pc required to create a bubble of the higher temperature phase depends on how far the sample temperature is from the SmA-N phase transition temperature.
Effect of solvent addition to bitumen on bitumen air bubble attachment in an industrial process water was investigated by determining the minimum time required to achieve the bitumen air bubble attachment, known as induction time.
Based on our observations and corroborated by previous independent reports [ 24, 28] the presence of a gas bubble is a good indication of successful optoinjection; therefore, we further investigated the parameters required to produce a gas bubble as a function of embryo depth.
The less viscous a substance, the lower the energy that is required to disperse a large bubble of the substance into small droplets.
At 5 μm from the surface of the embryo, only ~0.8 nJ is required to obtain a gas bubble using 30 ms laser exposure.
An appropriate ultrasonic energy is required to induce collapsing gas bubbles with high temperature (in excess of 4,000 K) [22, 23].
