In this presentation, Various security threats face by routing protocols in wireless sensor network is presented.

采用加权网络中节点强度和权重都是幂率分布的模型，人脸识别中的光照处理方法，在MATLAB中求图像纹理特征。- Using weighted model nodes in the network strength and weight are power law distribution, Face Recognition light treatment method, In the MATLAB image texture feature.