Objective To predict the incidence trend of hemorrhagic fever with renal syndrome in Shenyang by applying grey swing model,in order to provide a theoretical basis for developing scientific and reasonable strategies of prevention and control of hemorrhagic fever with renal syndrome(HFRS).

Grey swing model is more applicable for data with volatility and lager swing.

To conquer the accuracy lack of the dynamic model groups when the original data array has obvious random fluctuation,this paper aims at using a new water quality prediction method-the dynamic grey model groups method based on the identification index to predict the water quality,and getting the result by amending the remnant error.

Application of Grey Dynamic Model in Predicting Gross Population;

[Methods] Based on the data derived from the Annual Report of Chinese Health Statistics,the epidemiology of DM mortality in rural and urban areas was described,and Grey dynamic models GM(1,1) were established respectively to forecast the mortality trends for the years 2000 to 2005.

A grey dynamic model of month load and year load in electric power is created in this paper.

Study on gray dynamic model for electricity forward price forecasting;

Application of dynamic gray model in deformation forecast;