At present, several methods such as TNT equivalence method, TNO method, British gas VCE method, Shell method and Multi-energy method are used to evaluate the above parameters, in which the multi-energy method is considered as a much more advanced model for vapor cloud explosion prediction.

On the basis of analyzing the hazardous characteristic and the characteristic of vapor cloud explosion accident of liquefied petroleum gas,two methods TNT equivalent method and TNO multi-energy method are used to calculate the consequence of vapor cloud explosion accident in LPG storage tank,the radius of death,sev.

Deepening of education reform of organic experiment to foster high quality persons being expert in one and good at many;

Oct-4 and Nanog are two critical transcriptional factors to keep pluripotency and self-renewal of stem cells in vivo and in vitro, and they usually express only in pluripotent cells and not in differentiated cells.

This study did microinjection to Kunming white mouse inbred embryos to test its in vitro developmental ability, then pluripotency of porcine EG cells was tested with production of chimera by blastocyst injection.

Higher vocational education should be based on human,and practice the construction of training system that is mastering many skills while specializing in one.

The progress of studies on multipotential of adult stem cell;