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According to the requirements of flood control and drought relief and water resources utilization and management, annual runoff of Yanghe reservoir in Qinhuangdao city is forecasted based on gray dynamic model modeled, analysed and summarized. The comparative and analyzing results between calculation results and actual data prove that the model prediction accuracy is good in line with the actual situation...
To solve both the problems of unstable tension and difficult start in threading-in process on 1420 cold tandem mill, a model of strip tension fluctuation in threading-in process was built, with a formula of static deviation of strip tension. After digesting and analyzing the mathematical model and control system of strip threading-in process, the simulation of strip threading-in process for this mill...
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