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
Economy of Dalian There are the Dalian branches of China's five major banks: Bank of China, Industrial & Commercial Bank of China, China Construction Bank, Bank of Communications, and Agricultural Bank of China. Dalian Commercial Bank is now called Dalian Bank, which among other things handles processing of the Dalian Mingzhu IC Card for public transportation. Dalian Commodity Exchange is the only one of its kind in China, expanding the futures market beyond soybeans. A "Financial Street" around the new Commodity Exchange building is now being planned. Since the 1990s, Dalian City has emphasized the development of the IT industry, especially in Dalian