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作者:J. O. do Nascimento , R. L. S. Monteiro , D. M. Moreira ...
来源:[J].Discontinuity, Nonlinearity, and Complexity, 2018, Vol.7 (2)L&H
摘要:Metrics of social and complex networks can be used in the study of emergent patterns in semantic networks. The goal of this article is to analyze the semantic network formed by the keywords of theses and dissertations on physics teaching that were defended in Brazil between ...
作者:Pengfei Lei , Jiazhong Zhang , Daxiong Liao
来源:[J].Journal of Vcibration Testing and System Dynamics, 2018, Vol.2 (2)L&H
摘要:The local flexible structure (LFS) is used on the airfoil to enhance the lift, and the influences of structure parameters of LFS on the lift enhancement are studied numerically. Coupling with the structure solver, the unsteady flows over airfoil with LFS are simulated by using th...
作者:Kaijun Yang , Chan Wang , Yuanyuan Wen ...
来源:[J].Journal of Environmental Accounting and Management, 2018, Vol.6 (2)L&H
摘要:Based on the data of 11 provinces or cities in the Yangtze River Economic Zone from the year of 2006 to 2015,through constructing the panel threshold model, this paper analyzed the threshold effect of the two-way FDI on the upgrading of industrial structure and environment on dif...
作者:Yeyin Xu , Albert C.J. Luo
来源:[J].Journal of Vcibration Testing and System Dynamics, 2018, Vol.2 (2)L&H
摘要:In this paper, independent periodic motions in the two-degree-of- freedom (2-DOF) van der Pol-Duffing oscillator are investigated. From the semi-analytical method, the 2-DOF van der Pol-Duffing os- cillator is discretized to obtain implicit discrete mappings. From the implic...
作者:D. Vivek , K. Kanagarajan , S. Harikrishnan
来源:[J].Discontinuity, Nonlinearity, and Complexity, 2018, Vol.7 (2)L&H
摘要:In this paper, we study the existence, uniqueness and Ulam stability of solutions of fractional integro-differential with complex order. Based on Krasnoselkii fixed point theorem and Banach contraction principle, we obtain existence and Ulam stability results.
作者:Diogo Ricardo da Costa , Iberê L. Caldas , Denis G. Ladeira ...
来源:[J].Journal of Applied Nonlinear Dynamics, 2018, Vol.7 (2)L&H
摘要:The localization of the last invariant spanning curve – also known as the last invariant tori – in a family of generalized standard mappings is discussed. The position of the curve dictates the size of the chaotic sea hence influencing the scaling properties observed for suc...
作者:Fazal Ur Rehman , A. Baseer Satti , A.Ahmed Saleem
来源:[J].Journal of Vcibration Testing and System Dynamics, 2018, Vol.2 (2)L&H
摘要:A continuous adaptive controller is designed for a famous example of Brockett system which is an example of a class of non-holonomic systems. The controllability Lie Algebra of the Brockett’s system contains Lie brackets of depth one. It is shown that the closed loop system ...
作者:Lilian M. Ribeiro , Gilson V. Soares , Alexandre C. L. Almeida ...
来源:[J].Journal of Applied Nonlinear Dynamics, 2018, Vol.7 (2)L&H
摘要:The dynamics and spectrum of vibrations of non-uniform Euler-Bernoulli beam were investigated. The beam cross section varies linearly in direction of its length. Spacial and temporal solutions were investigated, spacial by Differential transform Method and temporal by four order ...
作者:Boulanouar Saadat , Ahmed Hafaifa , Ali Bennani ...
来源:[J].Journal of Vcibration Testing and System Dynamics, 2018, Vol.2 (2)L&H
摘要:Gas turbines are widely found in industries, especially in gas compressor stations, where they are used to ensure the transportation of gas in high pressure pipelines over a long distance. Nevertheless, these rotating machines are subject to vibrations due to the influence of sev...
作者:V. Srinivasa , N. Sukavanam
来源:[J].Journal of Applied Nonlinear Dynamics, 2018, Vol.7 (2)L&H
摘要:This paper is concerned with trajectory controllability of a class of fractional-order systems of order α ∈ (1,2] with delay in state variable and with a nonlinear control term. Firstly, the existence and uniqueness of the system is proved under suitable conditions on the no...

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