Repositorio IPICyT: Envíos recientes
Mostrando ítems 1061-1080 de 2333
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Adaptive tracking via pinning in networks of nonidentical nodes
(2018)"We investigate the control of dynamical networks for the case of nodes, that although different, can be make passive by feedback. The so-called V-stability characterization allows for a simple set of stabilization conditions ... -
Constant-length random substitutions and gibbs measures
(2018)"This work is devoted to the study of processes generated by random substitutions over a finite alphabet. We prove, under mild conditions on the substitutions rule, the existence of a unique process which remains invariant ... -
Formation and atomic structure of hierarchical boron nitride nanostructures
(2015)"We report a combined experimental and theoretical study of boron nitride (BN) nanostructures synthesized by ball milling methodology. The BN nanostructures were obtained using h-BN powder under low-vacuum conditions and ... -
Global trajectory tracking through output feedback for robot manipulators with bounded inputs
(2011)"In this work, a globally stabilizing output feedback scheme for the trajectory tracking of robot manipulators with bounded inputs is proposed. It achieves the motion control objective avoiding input saturation and excluding ... -
Promotional effect of Rh nanoparticles on WO3/TiO2 titanate nanotube photocatalysts for boosted hydrogen production
(2018)"In this work, we explore the hydrogen production via the water splitting process on Rh-WO3 photocatalysts supported on nanotubes of TiO2. H2 production tests were performed in a 2-propanol-water solution. The support ... -
Synthesis of protonated titanate nanotubes tailored by the washing step: Effect upon acid properties and photocatalytic activity
(2017)"In this work, the acid and photocatalytic properties of titanate nanotubes (NTs) were surveyed. The surface acidity of the NTs was characterized by FTIR with lutidine and pyridine. The photocatalytic degradation of phenol ... -
Maximal unstable dissipative interval to preserve multi-scroll attractors via multi-saturated functions
(2016)"In this paper, we present families of piecewise linear systems which are controlled by a continuous piecewise monoparametric control function for the generation of monoparametric families of multi-scroll attractors. Thus, ... -
Synthesis, characterization and magnetic properties of defective nitrogen-doped multiwall carbon nanotubes encapsulating ferromagnetic nanoparticles
(2014)"Nitrogen-doped multi-walled carbon nanotubes (CNxMWNTs) with multiple morphological defects were produced using a modified chemical vapor deposition (CVD) method. In a typical CNxMWNTs synthesis by CVD, an acetone trap ... -
Trends in nanoscience, nanotechnology, and carbon nanotubes: a bibliometric approach
(2014)"Carbon nanotubes are currently one of the most important materials due to their strong mechanical resistance, light weight, and transport properties. Since the publication of Ijima’s paper on tubular carbon structures ... -
Water splitting behavior of copper-cerium oxide nanorods and nanocubes using hydrazine as a scavenging agent
(Elsevier, 2016)"A one-step microwave synthesis using neither a template surfactant nor strong molar NaOH concentrations is reported. Well shaped nanorod and nanocube CeO2 structures were achieved in 0.5 and 4 h at a maximum irradiation ... -
Infinite families of hyperbolic prime knots with alternation number 1 and dealternating number n
(2017)"For each positive integer n we will construct a family of infinitely many hyperbolic prime knots with alternation number 1, dealternating number equal to n, braid index equal to n+3 and Turaev genus equal to n." -
Pine-tree-like morphologies of nitrogen-doped carbon nanotubes: Electron field emission enhancement
(2014)"Nitrogen-doped multiwalled carbon nanotube (CNT) bundles exhibiting pine-tree-like morphologies were synthesized on silicon-silicon oxide (Si/SiO2) substrates using a pressure-controlled chemical vapor deposition process. ... -
Gold-TiO2-Nickel catalysts for low temperature-driven CO oxidation reaction
(2016)"Nickel-doped-TiO2 catalysts were prepared by the sol–gel method and surface modified with gold nanoparticles (AuNPs) by the urea-deposition-precipitation technique. The as-synthesized catalysts were characterized by X-ray ... -
Synchronization in complex networks under structural evolution
(2014)"We investigate the effects of structural evolution on the stability of synchronized behavior in complex networks. By structural evolution we mean processes that change the topology of the network. In particular, we consider ... -
Generalized multistable structure via chaotic synchronization and preservation of scrolls
(2013)"Switched systems are capable of generating chaotic multi-scroll behavior in by means of a control signal. This signal regulates an equilibrium position of the system and is defined according to the number of scrolls that ... -
Preservation of a two-wing Lorenz-like attractor with stable equilibria
(2013)"In this paper, we present the preservation of a two-wing Lorenz-like attractor when in the Lorenz system a feedback control is applied, making two of its equilibria a sink. The forced system is capable of generating ... -
State and actuator fault estimation observer design integrated in a riderless bicycle stabilization system
(2016)"This paper deals with an observer design for Linear Parameter Varying (LPV) systems with high-order time-varying parameter dependency. The proposed design, considered as the main contribution of this paper, corresponds ... -
On the emergence of chaos in dynamical networks
(2012)"We investigate how changes of specific topological features result on transitions among different bounded behaviours in dynamical networks. In particular, we focus on networks with identical dynamical systems, synchronised ... -
Nonclassical point of view of the Brownian motion generation via fractional deterministic model
(2018)"In this paper, we present a dynamical system based on the Langevin equation without stochastic term and using fractional derivatives that exhibit properties of Brownian motion, i.e. a deterministic model to generate ...