Impacts of uncertain factors on total time of construction for Beijing-Shanghai high speed railway;

The uncertain factor control in large span bridge engineering construction process

To solve this problem,the factors affecting the task assignment are analyzed,the interval numbers are used to express these uncertain factors,and a model of uncertain multi-attribute decision-making for the task assignment is built to assign the task more effectively in order to attain the objectives of minimum operating costs and top-quality.

For the going down of fault diagnosis accuracy because of uncertain factors like pavement,fuel and climate etc,an optimization method of OBDⅡ fault dictionary was introduced based on fuzzy orthogonal test.

On the basis of sensibility analysis in technical-economic evaluation of mineral deposits, systematic mathematical analysis has been applied to analyse degree of effects of main uncertain factors-proceeds of sale, sales cost, productivity and gross investment on investment income ratio in mining production.

During the ACO system emulation experiment,many uncertain factors of pheromone updating are found.