Administration of RA reduced the size of the spinal cord, probably as a consequence of increased cell death. There is a dramatic decrease in the expression of miR-9/9*, miR-124a and miR-125b, and Bcl2 and P53 as well in the sacral cord from E13.5 to E19.5 days post coitum. Our data showed that expression of these microRNAs was dysregulated in RA-treated spinal cord during embryonic development, suggesting that they may be involved in the development of the spinal cord.

A kind of intelligent magnetic starter was introduced. It can control the starting, maintaining and breaking of the AC contactor. The function of protector was to protect the motor when it was in the case of over-voltage, under-voltage, jam, overload, unbanlance and phase loss. It can also display the line voltage, three phase current of the motor, Moreover, the intercommunication between the protector and PC was realized.

In this paper, based on the finite element program ANSYS, the model of a simply supported railway bridge with and without isolation using lead rubber bearing is established. Seismic response time-history analyses of the bridge subjected to high-level earthquakes are carried out considering and not considering train live loads. Through the comparison and analyses of the results, the effects of train live loads on seismic calculation of non-isolated railway bridges and isolated railway bridges are obtained. The results of the research will support the further study on seismic design and isolation design of simply supported railway bridges.

This paper focuses on the composition of the Heavy-medium coal separation automatic control system, control methods and its functions. Introduced the main testing instruments and actuator in the control system. The system achieved good results in the Tangshan Rongyi Coal Preparation Company.

Aiming at the problem of poor adaptability to environment when using a single sensor to detect road-edge, this paper proposed a road-edge detection method based on perception dominance. Firstly, the confidence model of 2D laser radar and vision sensor was established, and then the Dempster-Shafer Theory was used to fuse the detection results of 2D laser radar and vision sensor. Finally, the effectiveness of the method in harsh environment was verified by experiments.