Exact(11)
The N.T.S.B. found that the company had used improper piping that allowed gas to leak from a mechanical coupling in 2006.
After flooding the container with nitrogen to ensure anaerobic conditions, it was sealed but allowed gas to escape.
The opening of valve 4 allowed gas to be stored in reference cell 2. Pressure gauge 3 indicated the gas pressure in reference cell 2. Gas in reference cell 2 was stored up to 3.5 MPa.
Another possibility would be that cement between the pipe and well walls didn't harden properly and allowed gas to pass through it.
Later reports suggested she had left the gas valve open, allowing sparks to ignite the gas and set fire to the balloon, or that her balloon was of poor construction and allowed gas to escape throughout the ascent.
The POC-Chamber-System was gassed with 40% O2, 5% CO2, 55% N2, with the incubation chamber being sealed with a semi-permeable membrane that allowed gas exchange while preventing evaporation.
Similar(49)
By lowering a polyethylene pipe into the depths of Lake Nyos, the scientists have allowed gas-rich water at the bottom of the lake to froth up in a great fountain.
Taken together, these and other blunders allowed gases to enter the well and rise with explosive and ultimately disastrous force to the drilling rig.
This combination of techniques allowed gas-particle partitioning measurements to be made across a wide range of atmospherically relevant conditions – temperatures of 25 100 °C and organic aerosol concentrations of <1 600 μg m−3.
This membrane protected the sample from particulate matter and light, but allowed gases to penetrate.
This prevented air from entering, but allowed gases produced to escape, preventing pressure build-up that could interfere with the bacterial growth and function.
Write better and faster with AI suggestions while staying true to your unique style.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com