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Used squared eancroid method for CCD image subdivided locating,discussed on squared cancroid method,and compared it with traditional centroid method, Gauss curvefitting method , and polynomial interpolation method.

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Used squared cancroid method for CCD image subdivided locating, discussed on squared cancroid method.and compared it with traditional centroid method, Gauss curvefitting method, and polynomial interpolation method.

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By using the methods of real representation of complex matrices, companion vector and company vector, we study and solve the problems of Jordan canonical forms, triangular and generalized diagonalization for matrices under consimilarity.

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In this paper, the single and combined toxicities of polycyclic aromatic hydrocarbons fluoranthene and copper to Phaeodactylum triconutum were studied.

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