The Bristol Stool Chart allows people with gastrointestinal symptoms such as constipation to clearly describe what their poop looks like and how healthy it is.
For the isolation test pups were selected randomly from their litter, weighed and placed in a soundproofed custom made plastic box (diameter 13.5 cm). An ultrasound microphone (UltraSoundGate CM16) fixed in the lid of the box 12 cm above the bottom was connected to a preamplifier (...
It is a typical long tunnel with a length of 31.5 km and a longitudinal slope of 1/5000, 22.7 km of which was constructed by a TBM. The excavation diameter is 5.5 m, the ground elevation along the line is 775–1005 m, the topography is not undulating, the relative height difference ...