The halogen gas inside a halogen lamp causes the evaporated tungsten to redeposit on the filament. This process, along with high pressure inside the capsule, slows down deterioration of the filament, improves lumen maintenance and extends the lampâs service life.
The mean heart rate as obtained in this study (246 beats min â1, with a range of 207â314 beats min â1) is within the range given by several authors in chicken embryos. In a previous study () we reported heart rate values ranging between 250 and 270 beats min â1 on days 19 and 20 of incubation.
Your average heart rate minus 5% is your Lactate Threshold Heart Rate. The reason to subtract 5% from the test is because your LTHR is defined as the highest average heart rate you can maintain for 60 minutes at maximal effort.our average heart rate minus 5% is your Lactate Threshold Heart Rate. The reason to subtract 5% from the test is because your LTHR is defined as the highest average heart rate you can maintain for 60 minutes at maximal effort.