The temperature of the mixture was maintained constant within ±0.01 K by circulation of water from thermostatically regulated constant temperature water bath (B-206) through the water-jacketed cell.
The performing hand (LH, RH) was maintained constant within runs, and alternated between runs.
A slurry of water and ice in the lower, opaque, double wall of the chamber prevented condensation on the transparent top and maintained constant (±1°C) chamber air temperature within an experiment.
In addition, the HF concentration was maintained constant during the etching process using a peristaltic pump to circulate the electrolyte within the Teflon™ cell.
In this case, the amplitude A was maintained constant.
The laser power was maintained constant and set to ≍2 mW within one experimental set of measurements.
Within each condition, block and trial order were maintained constant across participants.
All incubation times were maintained constant.
Ventilation parameters were maintained constant.
Body temperature was maintained constant.
