Tham khảo tài liệu 'environmental technologies part 14', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Environmental Medical Technogenic and Computer Technology Modeling Risk Assessment and Cost Benefit Analysis of the Accidents 253 Where coefficient A includes the integral expert parameters assessments of type - state of support beams B1 and B2 state of the western zone state of the southern shields between axes B-C state of block B - coefficient B is estimated on the base of the following parameters - activity of radioactive waste in fuel-containing masses activity of radioactive waste in the air activity of the water samples in wells - coefficient C is estimated on the base of the following parameters - efficiency of the protective systems of the Shelter condition of the dams and systems of flood control condition of the system of the radioactive monitoring condition of fire-prevention devices a level of the technologies a level of the capital investments - coefficient D is estimated on the base of the following parameters -a level of staff qualification state of work condition and labor payment. We use a point estimation based on expert conclusion at the estimating values of the parameters. Let the system presenting a condition of the Shelter be at norm state 1 . There are trajectories of change of its parameters which pass the system at first in state 2 local extreme situations not causing pollution growth outside of the Alienation zone an then in state 3 extreme situations that result in pollution growth outside of the Alienation zone . Also there are trajectories immediately passing the system from state 1 to state 3. If the initial state of the system corresponds to state 2 or 3 the trajectories that return the system to state 1 normalization of ecological radiation situation can be determined. Thus the task of risk assessment of the extreme situations occurrence can also be formulated to define a concrete stationary state in the model 2 . For that can be used 1 The values of the parameters corresponding to the current state of the system are determined. 2 .
