A new infrared thermal image method to measure the starting duration of YBCO high-temperature super-conductor(HTS) film chemical etching was proposed.

By analyzing the initial startup scheme, puts forward an improved startup scheme of counter blasting gasified nitrogen and counter charging liquified nitrogen based on the strong endothermic characteristics of the liquified nitrogen when being gasified,in order to shorten the startup time of the air separator.

The startup time for the fan type motor is relatively longer, which is unfavorable to the temperature rise of its stator and rotor conductors.

The start-up time and headway of queuing motor vehicles in the intersection,start-up lost time of through vehicles with disturbance under mixed traffic condition,and estimate of green time for discharging motor vehicles in the queue based on above results were analyzed.

Check on starting time and burden starting of belt conveyor;

The author introduces the structure and characteristics of kinds of automotive oxygen sensors,analyzes and compares their starting time,indicates the influence of the starting time to the tail gas emission.

It reflects directly the driving moment and the change rule of the starting time along with the crank corner in the starting process,the exact solution is obtained for the former graphic solution or the estimate solution,it provides the effective computational method for the reasonable choosing of compressor electrical machinery as well as the compressor economical movemen.