31. A sign convention is adopted such that the flow velocity is " positive ". 32. Exposure to tobacco smoke for 30 minutes significantly reduces coronary flow velocity reserve in healthy nonsmokers. 33. Many physical properties of a fluid can be expressed mathematically in terms of the flow velocity . 34. More precisely, the vorticity is a pseudovector curl ( rotational ) of the flow velocity vector. 35. Average flow velocity is 0.25 m / s, mean volume 159 m?/ s. 36. These calculated bone volume velocities are in agreement with flow velocities determined from grain size and bedforms. 37. These processes can alter hydrologic regimes by reducing flow velocity through the straightening and widening of channels. 38. Here, we assume the base state is rest, implying the mean flow velocities are zero. 39. Numbers correspond broadly to increasing flow regime, i . e ., increasing water flow velocity . 40. AR turbines are rated at 1MW @ 2.65 m / s of water flow velocity .
