drum stick

The process of drum beating by the drum stick is analysed by the theories of mechanics.

用力学理论分析鼓槌击鼓的过程 ,对鼓槌的不同形状和质量分布进行讨论 ,得出了鼓槌的最佳握点及形状。

OBJECTIVE To develop an HPLC method for the determination of erianin in Dendrobium chrysotoxum Lindl.

目的建立测定鼓槌石斛药材中毛兰素含量的高效液相色谱法。

This paper deals with the development of the seed embryo and plantlet formation of Dendrobium chrysotoxum Lindl.

本文报道鼓槌石斛未成熟种子在离体培养下发育成苗及离体快繁的研究结果。

Studies on chemical constituents in stem of Dendrobium chrysotoxum;

鼓槌石斛化学成分的研究Ⅲ

Chemical Constituents of Dendrobium chrysotoxum;

鼓槌石斛化学成分的研究

Erianin, chrysotoxine, chrysotobibenzyl and confusarin derived from Dendrobium chrysotox-um, were evaluated for their cytotoxicity in the Human leukemia K562 cell line culture.

体外培养肿瘤细胞株实验结果表明:鼓槌石斛中联苄类化合物毛兰素(erianin)、鼓槌石斛素(chrysotoxine)、鼓槌菲(chrysotobibenzyl)及菲类化合物毛兰菲(con-fusarin)对肿瘤细胞株K_(562)的生长具有不同的抑制作用,其细胞增殖抑制率50％的药物浓度(IC_(50))分别为0。