Work of breathing When there is increased gas flow resistance, the optimal respiratory rate decreases. This work (generally during the inhalation phase) is stored as potential energy which is recovered during exhalation. A pressure difference is required to overcome the frictional resistance to gas flow due to viscosity, and to provide non-elastic components of movement of the airway tissues to accommodate pulmonary volume change. Total work done against non elastic forces is 35% of total. Work is defined as a force applied over a distance. The SI unit of work is the Joule, equivalent to a force of 1 Newton exerted along a
Mewbourne College of Earth and Energy Mewbourne College of Earth and Energy The Mewbourne College of Earth and Energy is the earth science unit at the University of Oklahoma in Norman. Currently, the school has an enrollment of 931 students, of which 728 are undergraduates and 203 are graduates. The College was chartered on January 1, 2006 under a reorganization. The College includes two schools: the Mewbourne School of Petroleum and Geological Engineering and the ConocoPhillips School of Geology and Geophysics, and the Oklahoma Geological Survey (a state agency mandated by the Oklahoma Constitution). The main offices for the College are located in Sarkeys Energy Center