Objective To assay the concentration of neurotrophic factors secreted by human schwann cells that were cultured in vitro and to observe the time-concentration relationship.
目的测定体外培养的人雪旺氏细胞分泌神经营养因子在各时间点的浓度并观察其时间-浓度关系。
The radioactive concentration of lesion pixel depended on the pixel counts, the acquisition time and CF, and the relationship was expressed with an empirical formula.
②由图像像素的累积计数、 采集 时间及定标系数确定像素的放射性浓度 ，其关系可以一经验公式表示。
And the relationship between time and substrate concentration in each compartment of ion exchange and current efficiency is discussed.
并对各室对应物的浓度以及电流效率与时间的关系进行了探讨。
应用推荐