Our voice activity detection method is simple to be implemented and calculated and has high accuracy, which can work in the real time digital communication network with better signal-noise-ratio.

基于频谱特征的语音激活检测方法易于实现，计算量小且准确率高，适合较高信噪比的实时数字通信网络中。

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Activity recycle ratio of immobilized thrombin prepared by physical adsorption method is 81%, higher than that by chemical covalent binding method (56%).

实验结果表明，物理吸附法固定化凝血酶的活性回收率(81%)高于化学结合法固定化凝血酶的最佳结果(56%)。

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