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Control of a class of mechanical systems with uncertainties via a constructive adaptive/second order VSC approach
No full textOutput feedback second order sliding mode control for a class of nonlinear systems with non matched uncertainties
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A Robust control design for a class of uncertain nonlinear sistems featuring a second order sliding mode
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On modular backstepping design with second order sliding modes
No full textA partially recursive backstepping-like procedure to design estimation-based controllers for uncertain nonlinear systems is presented in this paper. Its motivation relies on the intent of reducing the computational load of the backstepping design by exploiting the simplicity of sliding mode control. The stability features of the system controlled via the proposed approach are semi-global. Its transient behaviour turns out to be comparable with that obtained via the purely backstepping design. The proposed approach exhibits modularity, in the sense that the controller is proved to guarantee input-to-state stability regardless of the choice of the parameter estimation mechanism
Properties of a combined adaptive/second order sliding mode control algorithm for some classes of uncertain nonlinear systems
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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