41. Where \ lambda is the mean free path of the suspending gas and d is the diameter of the particle. 42. The mean free path of an air molecule, which moves at 1, 000 km / h at STP is 10 cm. 43. Temperature dependence of the mean free path has an exponential form { e } ^ { \ Theta / bT }. 44. The mean free path can be increased by reducing the number of impurities in a crystal or by lowering its temperature. 45. But restaurant managers must simply make sure there is a smoke-free path created, however that can be done, enforcement officials said. 46. Radiation treatment planning has pencil beam scanning as one of its modalities . mean free path is involved in IMRT planning. 47. Given the long free paths , an electric field can accelerate these electrons to energies far higher than that of initially static electrons. 48. The train dispatcher had only thought about the train carrying the firefighting equipment, and gave train 168 a free path to Brondby�ster. 49. M / M / 1 queues in tandem and it has been shown to apply to overtake free paths in Jackson networks. 50. The effect is strongest when the mean free path of the gas molecules is comparable to the dimensions of the gas container.