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Abstract Monodisperse dendrimers with remarkable solubility have been obtained using a new repetitive synthetic strategy. The third generation nanoscale dendrimer 9 having 24 functional groups already reaches a molecular mass of 6910 Da. 相似文献
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Hans-Bernhard Meyer 《Linear algebra and its applications》1978,20(2):131-146
Solutions of the algebraic matrix Riccati equation are studied for normal forms of linear Hamiltonian systems. A necessary and sufficient condition is proved for existence of solutions. 相似文献
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