Results 81 to 90 of about 502,402 (122)

[Research progress of electroactivity graphene-based materials in bone repair]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Kang R, Yuan W, Zhu Y.
europepmc   +1 more source

[Report of 24 cases of primary ciliary dyskinesia in children]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Feng XQ, Zhong LL, Peng L, Xu L, Zhou P.
europepmc   +1 more source

一种用于通信的LED恒流源驱动电路

open access: yes
本发明公开了一种用于通信的LED恒流源驱动电路,该电路包括信号输入电路(1)、电压偏置电路(2)和恒流放大电路(3),其中信号输入电路(1)和电压偏置电路(2)的输出端共同连接于恒流放大电路(3)的输入端,信号输入电路(1)的输出信号与电压偏置电路(2)的偏置电压叠加之后进入恒流放大电路(3)。本发明提供的这种用于通信的LED恒流源驱动电路,其输出频率最高可达10MHz,工作在非全开全关模式,信号稳定,精度高 ...
施安存   +4 more
core  

[Petroleum ether fraction of <i>Myrica nana</i> roots relieves spasmodic abdominal pain in mice by inhibiting intestinal smooth muscle spasm]. [PDF]

open access: yesNan Fang Yi Ke Da Xue Xue Bao
Yang S   +8 more
europepmc   +1 more source

[Effects of cold atmosphere plasma treatment on the biological behavior of human gingival fibroblasts]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Zheng M   +7 more
europepmc   +1 more source

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