It provides a theoretical basis for harvesting the low-frequency vibration energy in environment and designing self-powered device of sensor network.

为采收环境低频振动能量，实现网络传感器自供电装置提供了设计的理论依据。

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Piezoelectric energy harvesting has become one of research hotspot due to its advantage of low cost, simple device, good portability, etc.

压电发电因为具有成本低、装置简单、嵌入性好等优点，成为研究的热点之一。

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First, a group of scientists in the UK developed a new energy-harvesting device that attaches to the joint between the thigh and shin.

ENGADGET: Inhabitat's Week in Green: energy-harvesting toilet, LED lightbulb overhaul and a floating, solar-powered resort home