Study on the effect of load rates and critical slips in the aggregation of induction motors in transient stability simulation shows that the two aspects have great influence on the accuracy of aggregation.

In this paper, the parameters of the induction motors are aggregated using the weighting-mean method based on the capacity, load rate and critical slip, and the subtransmission network is considered in load aggregation using the massive data in power system.

Wang-Yu algorithm of non-circular critical slip surface for soil slop

Once a soil slope is led to the limit equilibrium state by means of the finite element – strength reduction technique,usually,the critical slip surface goes through the points at which the equivalent plastic strain takes the maximum.

Modified Monte Carlo techniques by rotating slip segments for searching general critical slip surface(Ⅰ):random angle of rotation;

Based on the critical stress fracture criterion and by means of the calculation of the time for the surface of the functionally gradient ceramie plate to attain its local fracture strength, the expression of the critical temperature difference △Tc leading to the critical t.

The critical temperature differences (ΔTC) of various sample thicknesses are obtained, which shows that the critical temperature differences decrease gradually with the increasing plate thick.