Abstract: A method for preparing hematopoietic endothelial cells and a method for preparing hematopoietic stem cells are provided, comprising inducing hematopoietic mesodermal cells to express transcription factors LCOR, HOXA9, HOXA5, RUNX1, and ERG at specific time periods during the conversion of induced pluripotent stem cells into the hematopoietic endothelial cells or the hematopoietic stem cells. The method can increase the preparation efficiency of at least one of the hematopoietic endothelial cells and the hematopoietic stem cells (including long-term hematopoietic stem cells).

Abstract: The present disclosure discloses an automatic scrubbing apparatus for an electronic module and an automatic scrubbing method thereof. The automatic scrubbing apparatus for an electronic module comprises: a fixing mechanism for limiting and fixing the electronic module, a cleaning brush, a driving mechanism, and a spraying mechanism for spraying the bromine-based cleaning agent on the surface of the electronic module. The fixing mechanism comprises a carrier for providing a groove to hold the electronic module, and the depth of the groove is smaller than the height of the electronic module to expose debris on the side surface of the electronic module. The fixing mechanism further comprises a fixing frame, the fixing frame locates above the electronic module to limit the electronic module. The debris on the side surface and the foreign body on the back of the product can be effectively cleaned, so that the cleaning quality is improved.

Abstract: The present disclosure discloses an automatic scrubbing apparatus for an electronic module and an automatic scrubbing method thereof. The automatic scrubbing apparatus for an electronic module comprises: a fixing mechanism for limiting and fixing the electronic module, a cleaning brush, a driving mechanism, and a spraying mechanism for spraying the bromine-based cleaning agent on the surface of the electronic module. The fixing mechanism comprises a carrier for providing a groove to hold the electronic module, and the depth of the groove is smaller than the height of the electronic module to expose debris on the side surface of the electronic module. The fixing mechanism further comprises a fixing frame, the fixing frame locates above the electronic module to limit the electronic module. The debris on the side surface and the foreign body on the back of the product can be effectively cleaned, so that the cleaning quality is improved.

Abstract: A proactive vehicle safety device, a proactive exterior airbag system, is disclosed, which consists of a detection subsystem, a control subsystem and a deployment subsystem. The design of each of the subsystems is provided. The detection method, control method and deployment method of the proactive exterior airbag system are also provided. Two types of exterior airbags are disclosed.