Linlin Qin

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In this paper, we consider the problem of approximate bisimulations for constrained discrete-time linear systems. First, we develop a theory of approximation for transition systems with nondeterministic evolution. Then observation metrics are used to describe the bounded distance between system observations. Furthermore, we utilize a class of Lyapunov-like(More)
To achieve the precise control of the greenhouse, further enhance energy efficiency, it is necessary to clearly understand the greenhouse temperature system's characteristics. This work is concerned with the greenhouse temperature system in the typical summer climate under east-central China conditions. Firstly, fuzzy control algorithm is used to obtain(More)
In this paper, the problem of finite-time stabilization is considered for switched linear systems with time-varying delay and norm-bounded exogenous disturbance under the event-triggered control scheme. First by employing a full-dimension state observer, an observer-based event-triggered controller is designed. Then based on Lyapunov-like function method(More)
This paper is concerned with how far a combination of auto regressive moving average model with external input and neural network (NNARMAX) can ameliorate the modeling performance for the inside humidity of an unheated, naturally ventilated greenhouse in autumn under east-central China conditions. The environmental factors influencing the inside humidity,(More)
The problem of event-triggered output-feedback control for switched linear systems is investigated. First, an event-triggered output-feedback controller is designed. Then based on the Lyapunov function method and linear matrix inequality (LMI) technique, some sufficient conditions are derived to guarantee the asymptotic stability of the switched system with(More)
Based on the Probabilistic Packet Marking Scheme, a new Authenticated Packet Marking Scheme for IP trace-back is proposed. The novel scheme adopts a new dynamic probability value sequence to mark packets. Compared with PPM Scheme, the new scheme doesn't need the topology of network and it improves a lot on false positive, computational complexity and(More)
This study aimed to investigate the relationship between lymph node micrometastasis and histologic patterns of adenocarcinoma, with a particular focus on their joint effect on prognosis. We retrospectively reviewed 235 patients with stage I adenocarcinoma from January 2009 to December 2009. Lymph node micrometastasis was evaluated by immunohistochemical(More)