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In-pipe robots are mostly applied to exploration and maintenance of pipelines in the industry where is hard to perform by manual operation. As their study involves many disciplines and it is one of the important development directions in the field of robot research, and has important research value and wide application foreground. This paper presents the significance and prospects, and comprehensively...
In this paper, the algebraic structure for a class of point fuzzy numbers are investigated that new algebraic operations about point fuzzy numbers are presented, such that point fuzzy numbers set F(R) are F-Abel group, F-linear space, and F-commutative algebra, respectively. Example is also given to illustrate our results.
In this paper, the stability problem of perturbed discrete dynamic interval systems with time delay is considered, By using the properties of spectral radius and Lyapunov's stability theory, some sufficient conditions are obtained which guarantee the robust stability of the perturbed discrete-delay dynamic interval systems. These conditions possess simple forms and provide useful tools to check stability...
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