This article discusses the equalization algorithms in the digital coherent receiver for Polarization Mode Dispersion(PMD) produced in the transfer process.We analyze the impact of the convergence factor on the algorithm performance.And we've found the best convergence factor for the simulation.Practice has proved that: for the impact of PMD,the error rate can be reduced after CMA compensation.

In order to study the sistution that Saccharomyces cerevisiae uptake the external sources of chloroplast,through PEG-induced cell protoplasts of Saccharomyces cerevisiae cells in vitro uptake of spinach chloroplasts,and then use optical microscopy and fluorescence microscopy to observe the fusion of chloroplast and yeast,there may be some cells fusioning.At the same time the shape of certain fusion cells may change.By extracting the cells in spinach chloroplasts,induced protoplast Saccharomyces cerevisiae cells on the uptaked chloroplast.In the fluorescence microscope observation,since the chloroplast in the Blu-ray excitation can spontaneous emits red fluorescence,while yeast cells in Centre acridine orange staining conditions and in the Blu-ray emit significant green color,from which can we judge whether the cells have fusioned.