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.
If an athlete has a normal Hb level of 15 gm, a SaO 2 of 100% and a PaO 2 of 100 mmHg, the formula used to calculate his blood oxygen content is: [Hb X 1.34 X (SaO 2 /100)] + 0.003 X PaO 2 or [15 X 1.34 X 100/100] + 0.003 X 100 so 20.1 + 0.3 = 20.4 mL/100 mL of blood.efinitions: SaO 2 = arterial oxygen saturation, Hb = hemoglobin, 1.34 mL is the amount of oxygen a fully saturated gram of hemoglobin can carry, Pa0 2 = partial pressure of oxygen or the amount of oxygen dissolved in blood.