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
CAP Scientific team, working with both surface and submarine fleets, and a Land Air Systems business also took research and development contracts and was prime contractor for the British Army's Brigade and Battlegroup Trainer (BBGT). The non-defence scientific sector was addressed by setting a Scientific Systems business with expertise in energy generation and conservation. In that year, CAP Scientific established the Centre for Operational Research and Defence Analysis (CORDA) as an independent unit to provide impartial assistance for investment appraisal. At that time military computer systems were purpose-built by major contractors, and CAP Scientific's strategy was to form joint ventures with companies