The automatic cab signal system shall be arranged so that cab signals will be continuously controlled in accordance with conditions described in Â§ 236.205 that obtain at least stopping distance in advance. Â§ 236.512 Cab signal indication when locomotive enters block where restrictive conditions obtain.
Dissolved oxygen (DO) is a measure of the quantity of free oxygen molecules in water. The concentration of DO is an important indicator of the health of an aquatic ecosystem because oxygen is essential for almost all forms of life. Oxygen is necessary for respiration and for some chemical reactions.
measurement of Oxygen uptake during aerobic exercise Name three ways to measure human energy expenditure. direct and indirect calorimetry, and doubly labeled water What exactly is the doubly labeled water technique? measures elimination differences after ingestion of water doubly labeled with deuterium and oxygen-18; measured by mass spectrometer What does the doubly labeled water technique measure?