In order to solve the problems of component category,sensitivity uncertainty and topology structure randomicity in the process control system,a new estimation method of process control system failure rate based on failure tree and voltage sag sensitivity uncertainty is proposed.

Enterprise′ s perceived uncertainty and reaction to environmental changes;

Residents feeling of uncertainty to income,price and expenditure has much negative influence on their consumption behaviors,which make our deposit rate of urban residents stay at the peak and demands of consumption fall into a downturn.

Study on the correlations between postoperative uncertainty in illness and anxiety,depression,coping mode in breast cancer patients;

This anxiety/uncertainty management (AUM) theory suggests that effectiveness of communication is a function of individuals’ abilities to manage their uncertainty and anxiety.

The self-rating anxiety scale(SAS),the self-rating depression scale(SDS),the Medical Uncertainty Inventory Scale(MUIS)and Medical Coping Modes Questionnaire(MCMQ)were used to assess the effect of nursing intervention on the patients with hyperplasia of mammary glands.