Mechanical energy nonconservative forces, like frictional forces, will be present, but often they are of negligible values and the mechanical energy's being constant can therefore be a useful approximation. In elastic collisions, the mechanical energy is conserved but in inelastic collisions, some mechanical energy is converted into heat. The equivalence between lost mechanical energy (dissipation) and an increase in temperature was discovered by James Prescott Joule. Many devices are used to convert mechanical energy to or from other forms of energy, e.g. an electric motor converts electrical energy to mechanical energy, an electric generator converts mechanical energy into electrical energy and a
Dalian Shipbuilding Industry Company Dalian Shipbuilding Industry Company Dalian Shipbuilding Industry Company (DSIC), located in Dalian, Liaoning province, China, is the largest shipbuilding company in China. It is part of China Shipbuilding Industry Corporation (CSIC), one of the two state-owned shipbuilding enterprises in China. Dalian Shipbuilding Industry Company (DSIC) was formed in December 2005, as the result of a merger between Dalian Shipbuilding Industry Company and Dalian New Shipbuilding Industry Company, and is the largest shipbuilding company in China. It is owned by: which is one of the two state-owned enterprises that came into being under the directive of the China State Council of