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 Maritime University about 40 students from China and the Southeast Asian countries who are studying at DMU in English under the World Maritime University scholarship, to earn the master's degrees in 14 months. Dalian government offers a number of scholarships to international students who want to pursue higher education at Dalian Maritime University Dalian Maritime University Dalian Maritime University () is a university located in Dalian, Liaoning, People's Republic of China. It is a key maritime institution under the Ministry of Transport of the People's Republic of China, and is a Chinese Ministry of Education Double First Class Discipline University, with Double