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This paper studies a synchronized output regulation problem with information exchanged at sampled times. Each node has a continuous-time internal model controller and a local exosystem providing a reference output signal. At sampled times, each node sends the exosystem state to its neighboring nodes, as well as updates the exosystem dynamics by the received sampled data. A necessary and sufficient...
The problem of joint input and state estimation is discussed in this paper for linear discrete-time stochastic systems. By minimizing an objective function of weighted least squares estimation with respect to the states and unknown inputs, a recursive filter approach referred to as General Kalman filter with unknown inputs (GKF-UI) is obtained. It is shown that the proposed GKF-UI approach covers...
General type-2 fuzzy set (GT2FS) is the generalization of its type-1 counterpart, which can better describe the nature of uncertainty. This paper presents computing with words (CWWs) for the discrete GT2FS based on α plane representation. Firstly, it is introduced for the GT2FS, Secondly, We give the numerical procedure of CWWs. Numerical examples are applied to assess the algorithm. Finally, we point...
An environmental flow is a description of the components of a river's natural flow regime to ensure that the key chemical, geomorphological and ecological processes necessary for healthy river ecosystem functioning are maintained. This concept has been applied to hydrological rehabilitation of the health of rivers impacted by large flow regulating structures such as dams and weirs. This paper firstly...
In recent years, tourism undergraduate education appears atrophic phenomenon, which poses a great challenge to higher education of tourism. Many tourism departments of universities face enormous pressure to survive, and a small number of that is even revoked or suspended. Therefore, tourism development of creative tourism industries set new demands to higher education and provide an opportunity to...
The paper makes an empirical study of financial efficiency and its contribution to economic growth in Hebei Province, China. The factor analysis results show that since 1995 financial efficiency of Hebei province has been changing first from strong to weak and then from weak to strong, financial reform of Hebei Province has made remarkable achievements and financial efficiency has improved a lot In...
Public bicycles supply a convenient and flexible trip mode, and a way of low carbon life for city dwellers. Considering the networked topology and dynamic characteristics of the public bicycle rental system in Hangzhou City, the complex network theory was adopted to establish the model and to analyze the related statistic characteristic parameters. By introducing a random and preferred orientation...
According to the air transportation and economic development theories, based on the data of Chinese air transport industry and economic development during 1978–2009, this paper analyzes the relationships between the development of air transport and economic growth, and the contribution to economic growth in China. Empirical analysis shows that: there exists strong correlation between air transport...
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