The "standard" sea lamprey barrier uses a fixed-crest height and overhanging lip to maintain a vertical drop of about 30 cm from headwater to tailwater over the period of lamprey migration.
To overcome this, the traditional honeycomb matrix structure of rotary desiccant wheels was redesigned to maintain a pressure drop value below 2 Pa, which is required for passive ventilation purposes.
In order to maintain a pressure drop in the extraordinarily long food canal, both the proximal and distal food canal require adequate sealing structures (Karolyi et al., 2012).
Five filters were replaced for each smoking session to sustain the least possible suction resistance and that was done by maintaining a pressure drop of less than 1500 Pa between the head of waterpipe and the suction device.
Our experiments (at pH ∼8.0) confirmed that PCD (blue dotted line in Figure 1 c), after a small initial drop, maintained a stable pH value during oxygen scavenging for up to 90 min and then showed a slight drop.
The Salvation Army leader, along with his wife and two daughters, plough an inordinate amount of time into maintaining a Salvos drop-in centre on Melbourne's Bourke Street.
Yet Khannouchi maintained a steady, blistering pace to drop the two greatest track runners in history and won in 2 hours 5 minutes 38 seconds, four seconds faster than the record he had set at the 1999 Chicago Marathon.
From 17 July 1945, the squadron maintained a detachment at Morotai Island, which dropped supplies to Army units fighting in Borneo.
Then, by maintaining an oil drop in a fixed position while it was impacted by single air bubble, it was feasible to calculate the percentage of air-bubble inclusions into oil drops for different compositions of the continuous phase.
