Repositorio IPICyT: Envíos recientes
Mostrando ítems 1041-1060 de 2310
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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 ... -
A generalized design methodology for the output feedback regulation of a special type of systems with bounded inputs
(2013)"In this work, a generalized design scheme for the output feedback regulation of a special type of systems with bounded inputs is proposed. It gives rise to a simple dynamic controller that guarantees the regulation objective ... -
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 ... -
Chaotic attractors based on unstable dissipative systems via third-order differential equation
(2016)"In this paper, we present an approach how to yield 1D, 2D and 3D-grid multi-scroll chaotic systems in R3 based on unstable dissipative systems via third-order differential equation. This class of systems is constructed ... -
Generation of chaotic attractors without equilibria via piecewise linear systems
(2017)"In this paper, we present a mechanism of generation of a class of switched dynamical system without equilibrium points that generates a chaotic attractor. The switched dynamical systems are based on piecewise linear (PWL) ...