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The problem of network congestion control is studied for a class of TCP network systems with state delay and external disturbance. Because the state of the system is not fully measurable, the state observer is designed. The sufficient conditions for the robust stability of the error system is given based on linear matrix inequality (LMI) and Lyapunov stability theory. According to the reaching condition...
In this paper, a novel robust nonlinear control strategy based on backsteping technology is investigated for a class of strongly nonlinear control problem via. The advantage of the proposed method lies on the use of the minimax optimal control theory during classical backstepping design procedure. Focus is given on the effect of unknown disturbances on the output of the system. Existing treatment...
The nonlinear large disturbance attenuation control scheme is investigated based on the backstepping method for the single-machine infinite-bus excitation system. Focus is given on the effect of the generator rotor on the output of the system by unknown external disturbances. The minimax method is used to reduce effectively the conservativeness of the disturbance treatment, which is brought by the...
In recent years, the Microblog has become an important role in advocating campaign of government. In this paper, the authors utilized the principal-agent theory, which is the core concept in Information Economics, combine it with interest game and policy implementation, and form the perspective of Game Theory, both from central and local governments, so as to analyze the problem in China's democratic...
OBJECTIVE: To explore the mediator effects of social anxiety on college students' life stress and mental health. METHODS: 1430 college students were tested by revised Adolescent Self-Rating Life Events Check List (ASLEO), General Health Questionnaire (GHQ12) and social anxiety scale chose from Self Consciousness Scale. RESUTL AND ANALYSIS: The college students' stressors were related to social anxiety...
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