Beijing University of Chemical Tehcnology

Nine Intelligent (changzhou) Tech Co., Ltd.

Staidson (beijing) Pharmaceutical Co., Ltd.

Staidson (beijing) Biopharmaceutical Co., Ltd.

Hongbo Chen

Li Li

Zhiwen Zhou

Hua Yan

Weimin Yang

Zhangping Yuan

Jing Tan

Zhiwei Jiao

Ying An

Aiguo Chen

Hongshan Zhang

Yongxu Hu

Haoyi Li

Yiwen Chen

Xiangfeng Zhong

Pengcheng Xie

Zhengchang Deng

Yumei Ding

A power apparatus includes: an input shaft; an output shaft; a connecting mechanism; a first driving mechanism; a second driving mechanism of which an output end is fixedly connected with the input shaft; a first transmission component sleeved on the input shaft; a second transmission component sleeved on the output shaft; a third transmission component sleeved on the input shaft; a fourth transmission component sleeved on the output shaft; a changeover mechanism causing the first transmission component to rotate with rotation of the input shaft, the first transmission component rotating to drive the second transmission component to rotate, the output shaft rotating with the rotation of the second transmission component; or causing the third transmission component to rotate with rotation of the input shaft, the third transmission component rotating to drive the fourth transmission component to rotate, the output shaft rotating with the rotation of the fourth transmission component.

Power apparatus, control method for power apparatus, and traveling device

A melt differential electrospinning device and process, the melt differential electrospinning device comprising a spinning nozzle (), a fiber receiving device (), a first high-voltage electrostatic generator (), a second high-voltage electrostatic generator (), a grounding electrode (), and n layers of electrode plates of a first electrode plate () and a second electrode plate (), n being an integer greater than or equal to 2; the spinning nozzle comprises a splitter plate (), a nut (), a spring spacer (), an air pipe positioning pin (), a screw (), a nozzle body positioning pin (), a nozzle body (), an air pipe (), a heating device (), a temperature sensor () and an inner cone nozzle (). The melt differential electrospinning process employs the melt differential electrospinning device, such that the polymer melt, under the effect of a wind field and an electric field, is uniformly distributed into a circle of dozens of Taylor cones along the conical surface end, and is further formed into dozens of jet flows and refined into nanofibers; and a plurality of melt differential electrospinning nozzles are installed below the splitter plate, thus realizing large-scale production of nanofibers, with a simple structure, and easy machining and assembly of components.

Melt differential electrospinning device and process

Transgenic rodents having NGF beta gene mutants in their genomes express NGF beta mutant proteins. The preparation methods of the transgenic rodents, the methods of utilizing the transgenic animals to prepare NGF beta mutant proteins and the resulting NGF beta mutant proteins are provided. The transgenic rodents are useful in preparing human NGF and in the study of the functions of NGF beta mutants and their receptors in the whole animal level, and also useful for screening and purifying NGF beta mutants which have high activity and high security.

Transgenic rodents having NGF beta gene mutants and its preparation methods, the preparation methods of the corresponding mutant proteins and the resulting mutant proteins

Growing community of inventors

Beijing, China

Hongbo Chen