Subversion is suited for developers who want to work in a secure, agile way but at the same time include a minimal amount of control at the file version level. Subversion适合想要用安全且灵敏的方法的开发人员,但是同时包括这个文件版本水平的少量的控制。
This paper describes the optimal control algorithm of multivariable time varying systems with constant time delays using minimal value theory and parameter optimization theory of optimal control theory, and presents the digital analog hybrid simulation method and practice methods of the systems based on this algorithm. 应用最优控制理论的极小值原理和参数优化理论,叙述了具有常数时滞的多变量时变系统的最优控制算法,基于该算法,提出了这类系统的数模混合仿真方法和实践方法。
Results Except two grafts in which the cold ischemia time of donor aorta exceeded 1? h showed minimal intimal thickening at 14 days in the control group post operation, the remaining transplant arteries showed no significant difference from the normal arteries of the recipients themselves. 结果同系移植对照组除供者血管冷缺血超过1h的2只术后14d内膜轻度增生外,其余移植动脉与受者自身的正常动脉比较,差异不显著;