LS-SVM based online trend prediction of gas path parameters of aero engine;

According to the monitoring functional requirements,applying gas path parameter analysis principle,the measured parameters which reflect the performance degradation of monitoring components are determined.

The effect of main circuit parameters on soft-switching inverter power with assistant network for spot welding on soft-switching range was studied by use of the Simplorer software.

Then the line parameters can be on-line computed by both the voltages and.

Based on high-speed railway and passenger dedicated line, discussion is done on influence of safety and comfort of vehicle caused by the line parameters such as curve radius, cant, length of transition curve and rail cant, when the train negotiate railway curve at the speed of 200km/h.

Whether the line parameters of dedicated passenger traffic lines are set up rationally or not affects directly the train running stability and comfort of passengers.

Then the circuit parameters related to the output characters of the laser were measured to supply the gist of the further optimization of the laser source.