Browsing División de Nanociencias y Materiales by Title
Now showing items 309-328 of 566
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Multiferroelectricidad en ferritas M
(2018-06)"Con la finalidad de esclarecer la existencia de propiedades magnéticas y eléctricas en ferritas tipo M se realizó la síntesis apropiada de estos materiales, que se caracterizan por una estructura cristalina hexagonal ... -
Multifractal analyses of row sum signals of elementary cellular automata
(2012)"We first apply the WT-MFDFA, MFDFA, and WTMM multifractal methods to binomial multifrac-tal time series of three different binomial parameters and find that the WTMM method indicates an enhanced difference between the fractal ... -
Multifractal analysis of the symmetry of a strictly isospectral energy landscape on a square lattice
(Elsevier, 2021)"We use the Höder regularity analysis to study the symmetry breaking and recovery due to a parametric potential generated via the strictly isospectral factorization method. The initial potential is two-dimensional and ... -
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 ... -
Mutually unbiased bases and finite projective planes
(2004)"It is conjectured that the question of the existence of a set of d+1 mutually unbiased bases in a d-dimensional Hilbert space if d differs from a power of a prime number is intimately linked with the problem of whether ... -
Mutually unbiased phase states, phase uncertainties, and Gauss sums
(2005)"Mutually unbiased bases (MUBs), which are such that the inner product between two vectors in different orthogonal bases is a constant equal to 1/d?, with d the dimension of the finite Hilbert space, are becoming more and ... -
N-step linear phase-shifting algorithms with optimum signal to noise phase demodulation
(2011)"A common way to test an optical wavefront is to use a phase-shifting interferometer along with (for example) a three-step linear phase-shifting algorithm (PSA). The following fundamental question arises: what phase step ... -
Nanocatalizadores Au/TiO2-X (X = Ni, Fe, Cu) y su aplicación en la producción/purificación sustentable de H2 y en la oxidación de CO a baja temperatura
(2015-08)"Nowadays, the modern societies are based on the use of cars which are an essential part of daily life. However, these vehicles generate high amounts of emissions such as carbon monoxide, hydrocarbons, volatile organic ... -
Nanoestructuras de carbono dopadas con fósforo
(2020)"El dopaje de nanoestructuras de carbono empleando átomos tales como B, N, O, P, entre otros, ha demostrado la capacidad de modificar sus propiedades físicas químicas, tales como la dureza, conductividad eléctrica, reducción ... -
Nanoestructuras de NPsAg/TNT y Ag3PO4/TNT como alternativa para la degradación de contaminantes y como agentes microbicidas
(2018-06)"Los nanotubos de titanatos de hidrógeno son nanoestructuras alternativas (TNT) para tratar la contaminación ambiental, tales como la desinfección de microorganismos patógenos y la limpieza de aguas residuales y aire ... -
Nanoestructuras y su caracterización por medio de microscopía electrónica de transmisión; ciencia y arte
(UNAM, 2020)"The description of nanometric systems is still being a challenging topic, for this reason the transmission electron microscopy (TEM) scope is exemplified in a didactic way using several nanosystems (Au nanoparticles and ... -
Nanotubos de carbono dopados con nitrógeno y boro
(2019-06)“Nanotubos de carbono dopados con nitrógeno y boro” En este trabajo se presenta la síntesis y estudio de nanotubos de carbono de múltiples capas fueron dopados simultáneamente con nitrógeno y boro. (N-MWCNTs, N-B-MWCNTs, ... -
Near UV-blue excitable green-emitting nanocrystalline oxide
(Hindawi, 2011)"Green-emitting Eu-activated powders were produced by a two-stage method consisting of pressure-assisted combustion synthesis and postannealing in ammonia. The as-synthesized powders exhibited a red photoluminescence (PL) ... -
New advances in magnetic nanostructures
(2007)"Some of the new developments on magnetic nanostructures are reviewed. The advances on the synthesis, characterization, and understanding of magnetic nanoclusters, magnetic nanowires and single molecule magnets are discussed. ... -
New direction in nanotube science
(Elsevier, 2004)"We review the latest advances in the production and state-of-the art characterization of B- and N-doped carbon nanotubes (CNTs) and nanofibers. We briefly discuss different approaches to producing these novel doped ... -
Newton´s laws of motion in the form of a Riccati equation
(2002)"We discuss two applications of a Riccati equation to Newton´s laws of motion. The first one is the motion of a particle under the influence of a power law central potential V(r)=krε. For zero total energy we show that the ... -
Niederhauser's model for epilepsy and wavelet methods
(2006-06)"Wavelets and wavelet transforms (WT) could be a very useful tool to analyze electroencephalogram (EEG) signals. To illustrate the WT method we make use of a simple electric circuit model introduced by Niederhauser [1], ... -
Nitrogen doped carbon nanomaterials for biosensing applications
(2013-10)"The doping of carbon nanostructures with elements such as nitrogen and boron adds useful characteristics to the already remarkable features exhibited by nanocarbons. These new properties can be used for tackling several ... -
Nitrogen–phosphorus doped graphitic nano onion-like structures: experimental and theoretical studies
(Royal Society of Chemistry, 2021)"Onion-like graphitic structures are of great importance in different fields. Pentagons, heptagons, and octagons are essential features of onion-like graphitic structures that could generate important properties for diverse ... -
Non-autonomous Ginzburg-Landau solitons using the He-Li mapping method
(Universidad Autónoma del Estado de México, 2020)"We find and discuss the non-autonomous soliton solutions in the case of variable nonlinearity and dispersion implied by the Ginzburg-Landau equation with variable coefficients. In this work we obtain non-autonomous ...