Using the maximal correlative criterion to compute the attenuation threshold,control the capturing intensity each other for neurons,and avoid the excessive smoothing aroused by through capturing for segmentation image,a new image segmentation method is put forward successfully.

To achieve higher acquisition accuracy while using FFT(fast Fourier transform)-based algorithm to acquire spread spectrum signal,integration across data bit transition boundaries is necessary.

By constructing three binary vectors (pDsE, pDsG and pAc) and T-DNA transformation mediated by Agrobacterium, we developed an Ac/Ds system harboring gene trap and enhancer trap for gene tagging in rice.

Discussion on problems and countermeasures of controlling the fishing intensity of Chinese marine fisheries;