Xiang-feng Zhang

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Agent technology and multi-agent theories are widely applied to distributed intelligent control systems. Considering the similarities between an immune system and a multi-agent system, we have proposed an immune agent. The immune agent is an agent with immune mechanisms, such as, cognition, learning, and evolution. And its formalization description is(More)
absTracT Future Internet should be capable of extensibility, survivability, mobility, and adaptability to the changes of different users and network environments, so it is necessary to optimize the current Internet architecture and its applications. Inspired by the resemble features between the immune systems and future Internet, the authors introduce some(More)
BACKGROUND Obstructive sleep apnea hypopnea syndrome (OSAHS) constitutes an independent factor for high warfarin dose for patients with pulmonary embolism (PE). The aim of this study was to investigate whether the 6-month anticoagulation treatment by warfarin is enough for patients with PE complicated by OSAHS. METHODS We investigated 97 PE patients, 32(More)
Network performance relies on the design of control algorithm and network information scheduling in a networked control system (NCS). The effect of the network scheduling is to allocate rationally network resources and improve network utilization. A scheduling approach is presented to implement the scheduling of a set of periodic tasks in this paper. And an(More)
Gas turbine is a complex non-linearity system and operates in variable conditions. Traditional control methods are usually adopted in the control loop of gas turbine. The methods may cause control error with the theoretically correct value. In this paper, an immune co-evolutionary algorithm (ICEA) is proposed inspired by immune mechanisms and(More)
Gas turbine is a complex, strong non-linear and multi-variable coupling pneumatic thermodynamics system. Its typical model in stability studies consists of load-frequency control, temperature control, and acceleration control. A strong coupling relationship exists among three control systems which affect the rotate speed of turbine and the exhaust(More)
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