Listar Publicaciones Científicas Nanociencias y Materiales por fecha de publicación
Mostrando ítems 101-120 de 564
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Micro-scale systems and cellular automata: Spatio-Temporal Dynamics
(2009)"This work contains the results from the simulations performed according to two computational models. The first one referrs to a chemical system within a Continuosly tirred Tank Reactor (CSTR), while the second deals with ... -
Online monitoring of Mezcal fermentation based on redox potential measurements
(2009)"We describe an algorithm for the continuous monitoring of the biomass and ethanol concentrations as well as the growth rate in the Mezcal fermentation process. The algorithm performs its task having available only the ... -
A simple electronic circuit realization of the tent map
(2009)"We present a very simple electronic implementation of the tent map, one of the best-known discrete dynamical systems. This is achieved by using integrated circuits and passive elements only. The experimental behavior of ... -
An amplitude-phase (Ermako-Lewis) approach for the Jackiw-Pi model of bilayer graphene
(2009)"In the context of bilayer graphene we use the simple gauge model of Jackiw and Pi to construct its numerical solutions in powers of the bias poten-tial V according to a general scheme due to Kravchenko. Next, using this ... -
Multifractal properties of elementary cellular automata in a discrete wavelet approach of MF-DFA
(2009)"In 2005, Nagler and Claussen (Phys. Rev. E 71, 067103 (2005)) investigated the time series of the elementary cellular automata (ECA) for possible (multi)fractal behavior. They eliminated the polynomial background atb ... -
Controlled growth of one-dimensional clusters of molybdenum atoms using double-walled carbon nanotube templating
(2009)"We report the controlled growth of one-dimensional clusters of molybdenum atoms inside the inner cores of double-walled carbon nanotubes. A combined characterization including high resolution transmission electron microscopy, ... -
Strong and stable photoluminescence from the semiconducting inner tubes within double walled carbon nanotubes
(2009-01)"We examined the optical features of single wall carbon nanotubes (SWNTs) and the inner tubes within double walled carbon nanotubes (DWNTs) having the same (n,m) chirality. The brighter and more stable photoluminescence ... -
Loop formation in graphitic nanoribbon edges using furnace heating or Joule heating
(2009-07)"Here the authors report the use of either furnace heating or Joule heating to pacify the exposed graphene edges by loop formation in a novel graphitic nanoribbon material, grown by chemical vapor deposition. The edge ... -
Raman spectroscopy study of heat-treated and boron-doped double wall carbon nanotubes
(2009-07)"We performed Raman spectroscopy experiments on undoped and boron-doped double walled carbon nanotubes (DWNTs) that exhibit the "coalescence inducing mode" as these DWNTs are heat treated to temperatures between 1200 C and ... -
The geometrical characteristics of fcc, hcp, and polycrystalline nanowires: simulations of transmission electron microscopy images and diffraction patterns
(2009-08)"To theoretically study the physicochemical properties of nanowires, it is necessary to build the corresponding atomic geometrical models. Here we present the geometrical characteristics of nanowires with fcc, hcp, and ... -
Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures
(2009-09)"Surface plasmon polariton (SPP) excitation effects on the magneto-optical (MO) activity of Au capped Ag/Co/Ag trilayers are studied as a function of Co thickness. An enhancement of the transverse MO Kerr signal under SPP ... -
Design of graphene electronic devices using nanoribbons of different widths
(2009-10)"We present a simple design of a field effect transistor based on graphene nanoribbons, taking advantage of the metallic and semiconductor nature of nanoribbons with different widths. Such device could be constructed by ... -
Generalizing segregation and chemical ordering in bimetallic nanoclusters through atomistic view points
(2009-10)"We predict general trends for surface segregation in binary metal clusters based on the difference between the atomic properties of the constituent elements. The energetically most favorable site for a guest atom on a ... -
Propiedades magnéticas de agregados CoAgN(N≤6).
(2010)"El presente trabajo es un estudio de la interrelación entre las propiedades estructurales y magnéticas de agregados de plata dopados con una impureza de cobalto. Estos sistemas muestran a nivel experimental interesantes ... -
Improvement and analysis of a pseudo random bit generator by means of cellular automata
(2010)"In this paper, we implement a revised pseudo random bit generator based on a rule-90 cellular automaton. For this purpose, we introduce a sequence matrix HN with the aim of calculating the pseudo random sequences of N ... -
Including transcription factor information in the superparamagnetic clustering of microarray data
(2010)"In this work, we modify the superparamagnetic clustering algorithm (SPC) by adding an extra weight to the interaction formula that considers which genes are regulated by the same transcription factor. With this modified ... -
Periodic Sturm-Liouville problems related to two Riccati equations of constant coefficients
(Elsevier, 2010)"We consider two closely related Riccati equations of constant parameters whose particular solutions are used to construct the corresponding class of supersymmetrically-coupled second-order differential equations. We solve ... -
Detection of mixed-culture growth in the total biomass data by wavelet transforms
(2010)"We have shown elsewhere that the presence of mixed-culture growth of microbial species in fermentation processes can be detected with high accuracy by employing the wavelet transform. This is achieved because the crosses ... -
Adsorption of molecular gases on porous materials in the SAFT-VR approximation
(2010)"A simple molecular thermodynamic approach is applied to the study of the adsorption of gases of chain molecules on solid surfaces. We use a model based on the Statistical Associating Fluid Theory for Variable Range (SAFT-VR) ... -
Solutions of the perturbed KdV equation for convecting fluids by factorizations
(2010)"In this paper, we obtain some new explicit travelling wave solutions of the perturbed KdV equation through recent factorization techniques that can be performed when the coefficients of the equation fulfill a certain ...