División de Nanociencias y Materiales: Envíos recientes
Mostrando ítems 501-520 de 595
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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 ... -
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 ... -
Set-reset flip-flop circuit with a simple output logic
(2012)"The equation of the plane (EOP) in analytic geometry is used to build a logic dynamic architecture, i.e., a combination of set-reset flip-flop (SR-FF) and basic logic gates. This is achieved by using two of the variables ... -
Nonsingular parametric oscillators Darboux-related to the classical harmonic oscillator
(2012)"Interesting nonsingular parametric oscillators which are Darboux related to the classical harmonic oscillator and have periodic dissipative/gain features are identi?ed through a modi?ed factorization method. The same ... -
La codificación de los quipus incas
(2007) -
PI-controlled bioreactor as a generalized Liénard system
(Elsevier, 2007)"It is shown that periodic orbits can emerge in Cholette’s bioreactor model working under the influence of a PI-controller. We find a diffeomorphic coordinate trans-formation that turns this controlled enzymatic reaction ... -
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 ... -
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 ... -
Words for nobel prizes
(2003)"We present the statistics of the significant nouns and adjectives of social impact figuring in the nominations of the Nobel prizes in Physics and Chemistry over the period of the awards from 1901 to 2001." -
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 ... -
Reconfigurable dynamical logic gate with linear core
(2013)"A dynamically reconfigurable linear core logic gate is a device that allows logical outputs dependent upon configurable parameters set within device. The device is comprised of three blocks: The first block receives at ... -
Efecto talbot unidimensional y bidimensional
(2014)"En este trabajo se muestran los resultados de los experimentos realizados en el verano del 2014 en el IPICYT, para corroborar la existencia del efecto Talbot el cual consiste en la reaparición de una imagen nítida de un ... -
Shifted riccati procedure: application to conformal barotropic FRW cosmologies
(2011)"In the case of barotropic FRW cosmologies, the Hubble parameter in conformal time is the solution of a simple Riccati equation of constant coefficients. We consider these cosmologies in the framework of nonrelativistic ... -
Additive and multiplicative noises acting simultaneously on Ermakov-Ray-Reid systems
(2016)"We investigate numerically the effect of additive and multiplicative noises on parametric oscillator systems of Ermakov-Ray-Reid type when both noises act simultaneously. We find that the main perturbation effects on the ... -
Efecto elastocalórico en una aleación Ni-Fe-Ga-Mn anisotrópica elaborada por sinterizado por descarga de plasma (SPS)
(2018-02)"Algunas aleaciones del sistema Ni-fe-Ga-Mn presentan transformación martensítica en el intervalo de temperatura ambiente. Las temperaturas de transición se pueden modificar dependiendo de la composición y metodologías de ... -
Pseudorandom sequences in spread-spectrum communications generated by cellular automata
(Universidad Nacional Autónoma de México, 2012)"Dynamical systems methods have been recently used in spread-spectrum digital communication systems. The expansion of the spectrum using a pseudorandom sequence with a higher frequency than the information signal is the ... -
Solitones no autónomos en fibras ópticas
(Sociedad Mexicana de Física, A.C., 2015)"Soluciones solitónicas de las ecuaciones de Schrôdinger no lineales de coeficientes variables que describen muchas situaciones reales de propagación solitónica se pueden obtener usando el mapeo de ‘integrabilidad diseñada’ ... -
Estudio de la transición magneto-elástica en aleaciones magnetocalóricas Mn2-xCrxSb (0.06 ≤ x ≤ 0.12) obtenidas en bulto y por enfriamiento ultrarrápido
(2017-11)"El presente trabajo reporta la síntesis de la aleación Mn2-XCrXSb con 0.06 ≤ x ≤ 0.12 obtenidas en bulto y en forma de cinta; y su caracterización estructural y magnética. Las muestras en bulto fueron fabricadas por ... -
Arresto cinético de la transformación martensítica en aleaciones Ni50Mn36In14 y Ni45Co5Mn36.8In13.2 y efecto magnetocalórico de la fase austenita en aleaciones Ni50Mn34In16-xSix (0.0 < x < 2.0)
(2017-11)"En la presente tesis se estudia el arresto cinético de la transformación martensítica en aleaciones Heusler no estequiométricas de composición nominal Ni50Mn36In14 y Ni45Co5Mn36.8In13.2, así como el efecto magnetocalórico ... -
Síntesis de materiales mesoporosos de SiO2 y sus aplicaciones en síntesis de azoxibenceno e inactivación de Tetraselmis suecica
(2017-10)"Recientemente, los materiales mesoporosos a base de dióxido de silicio han adquirido atención relevante debido a sus excelentes propiedades como área superficial alta y tamaño de poro controlable que los hacen útiles tanto ...