Wenlei Chen

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Friction is a key factor that influences the low velocity performance of high precision servo systems. It usually causes the steady-state error of servo systems and results in the creeping phenomenon in low velocity motions. Friction is complicated nonlinear process with time-varying uncertainties. The traditional PID controller of servo systems with(More)
This paper focuses on the effect of the degree of separation between the control rights and the cash-flow rights has on the earnings management of Chinese listed companies. Our analysis and empirical data show that under the effective control of shareholders, as the degree of the separation increases, the more sever the earnings management behavior and the(More)
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