Energy harvesting that are able to operate in higher temperature gradients, and that can conduct electricity well without also conducting heat (something that was until recently thought impossible ), will result in increased efficiency. Future work in thermoelectrics could be to convert wasted heat, such as in automobile engine combustion, into electricity. This type of harvesting is based on the changing capacitance of vibration-dependent capacitors. Vibrations separate the plates of a charged variable capacitor, and mechanical energy is converted into electrical energy. Electrostatic energy harvesters need a polarization source to work and to convert mechanical energy from vibrations into electricity. The polarization
Dalian Polytechnic University Dalian Polytechnic University Dalian Polytechnic University () is a university in Dalian, Liaoning. The school was founded in 1958 in Shenyang as the Shenyang Institute of Light Industry (). In 1970, it was transferred to Dalian, and renamed as the Dalian Institute of Light Industry (). In 2006, it was promoted in 2006 from the rank of institute to the rank of university. It is the only institution of higher education in northeast of China specializing in light industry, food, textiles and art design. There are about 15,000 students on the campus. Subjects taught include engineering, science, arts, management, and