Repositorio IPICyT: Envíos recientes
Mostrando ítems 1081-1100 de 2345
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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 ... -
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) ... -
Reliable compartmental models for double-pipe heat exchangers: An analytical study
(2007)"In this work, the analytical properties of the heat exchanger infinite-dimensional dynamic model are discussed. More importantly, those of a 2nd-order lumped-parameter model using the logarithmic mean temperature difference ... -
Pseudo-random bit generator based on lag time series
(2014)"In this paper, we present a pseudo-random bit generator (PRBG) based on two lag time series of the logistic map using positive and negative values in the bifurcation parameter. In order to hidden the map used to build the ... -
Activation of neuronal ensembles via controlled synchronization
(2017)"In this contribution we present the activation of neuronal ensembles of Hindmarsh-Rose neurons by controlled synchronization. The main problem consists in to impose a particular spiking-bursting behavior in all the neurons ... -
Output-feedback adaptive control for the global regulation of robot manipulators with bounded inputs
(2013)"In this paper, an output-feedback adaptive scheme for the global position stabilization of robot manipulators with bounded inputs is proposed. Compared to the previous output-feedback adaptive approaches developed in a ... -
A generalised PID-type control scheme with simple tuning for the global regulation of robot manipulators with constrained inputs
(2015)"In this paper, a globally stabilising PID-type control scheme with a generalised saturating structure for robot manipulators under input constraints is proposed. It gives rise to various families of bounded PID-type ...