A chaotic image encryption method based on control word is designed to improve the chaotic perturbation model and solve the finite precision problem in chaotic encryption.
论文设计了基于控制字的混沌图像加密方法，完善了混沌扰动模型，更好地解决了混沌加密有限精度问题。
A method of opening force analytical model was brought forward to solve the dynamic response analysis to pressure perturbation under the steady status.
提出了一种“开启力解析模型”的方法来求解稳态下密封性能对压力扰动的动态响应。
A singular perturbation method was applied to a model reduced order of a binary distillation column, and an aggregated model for designing a controller is deduced.
将奇异摄动方法应用于一个二元精馏塔的模型降阶，得到了一个用于控制器设计的集结简化模型。
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