Browsing División de Nanociencias y Materiales by Title
Now showing items 408-427 of 562
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Robust fringe pattern analysis method for transient phenomena
(Elsevier, 2018)"We propose a method for analysing a sequence of noisy interferograms with closed fringes acquired at a high–speed frame rate. Our method is appropriate for analysing ESPI sequences of transient phenomena such as deformations ... -
Robustness of the enhanced magnetic anisotropy in Ni nanowires regardless of the deposition potential
(Elsevier, 2020)"The effects of the deposition potential on the structural and magnetic properties of Ni nanowires with a diameter of 40 nm and lengths varying from 16 up to 56 pm have been studied. The results show that very long NWs ... -
Room temperature ferromagnetism and ferroelectricity in strained multiferroic BiFeO3 thin films on La0.7Sr0.3MnO3/SiO2/Si substrates
(Elsevier B.V, 2017-04)"A novel ferromagnetic state coexisting with ferroelectric ordering at room temperature in strained BiFeO3 (BFO) thin films grown using a sputtering technique on La0.7Sr0.3MnO3/SiO2/Si(100) (LSMO/SOS) substrates is reported. ... -
Scaling analyses based on wavelet transforms for the Talbot effect
(2013)"The fractal properties of the transverse Talbot images are analysed with two well-known scaling methods, the wavelet transform modulus maxima (WTMM) and the wavelet transform multifractal detrended fluctuation anal- ysis ... -
Secretion of an argonaute protein by a parasitic nematode and the evolution of its siRNA guides
(Oxford University Press, 2019)"Extracellular RNA has been proposed to mediate communication between cells and organisms however relatively little is understood regarding how specific sequences are selected for export. Here, we describe a specific ... -
Self consistent measurement and removal of the dipolar interaction field in magnetic particle assemblies and the determination of their intrinsic switching field distribution
(2012-04)"Using low density arrays of bistable magnetic nanowires as a model dipolar system, it is shown that the dipolar interaction field coefficient can be measured from the remanence curves as well as from other functions of ... -
Self-adjoint oscillator operator from a modified factorization
(2011)"By using an alternative factorization, we obtain a self-adjoint oscillator operator of the form Lδ=ddx(pδ(x)ddx)−(x2pδ(x)+pδ(x)−1), where pδ(x)=1+δe−x2, with δ∈(−1,∞) an arbitrary real factorization parameter. At positive ... -
Self-image effects in diffraction and dispersion
(2006-06)"Talbot's self-imaging effect occurrs in near-field diffraction. In the rational paraxial approximation, the Talbot images are formed at distances z=p/q, where p and q are coprimes, and are superpositions of q equally ... -
Semiconducting Nanocrystalline Bismuth Oxychloride (BiOCl) for Photocatalytic Reduction of CO2
(MDPI, 2020)"The reduction of CO2 is relevant for the production of compounds as part of the carbon capture and utilization research approaches. Thus, photocatalytic reduction of CO2 over a tailored BiOCl-based photocatalyst (BTEG) ... -
SenseCityVity: mobile crowdsourcing, urban awareness, and collective action in Mexico
(IEEE, 2017)"The SenseCityVity project aims to engage youth in Guanajuato, Mexico, helping them investigate, document, and reflect on urban problems though mobile crowdsourcing. An Urban Data Challenge encourages them to collect ... -
Sensing Eating Events in Context: A Smartphone-Only Approach
(IEEE, 2022)"While the task of automatically detecting eating events has been examined in prior work using various wearable devices, the use of smartphones as standalone devices to infer eating events remains an open issue. This paper ... -
SERS properties of different sized and shaped gold nanoparticles biosynthesized under different environmental conditions by Neurospora crassa extract
(2013-10)"Surface-enhanced Raman scattering (SERS) is a surface-sensitive technique that enhances Raman scattering by molecules adsorbed on rough metal surfaces. It is known that metal nanoparticles, especially gold and silver ... -
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 ... -
Shape invariance through Crum transformation
(2006)"We show in a rigorous way that Crum´s result regarding the equal eigenvalue spectrum of Sturm-Liouville problems can be obtained iteratively by successive Darboux transformations. Furthermore, it can be shown that all ... -
Shape memory behavior of Ni-Fe-Ga and Ni-Mn-Sn ribbons
(EDP Sciences, 2015)"Magnetic Shape Memory Alloys exhibit multifunctional properties due the martensitic transformation (MT) and accompanying changes in the magnetic subsystem. In this work, melt spun ribbons of nominal composition Ni55Fe16Ga29 ... -
Shape-anisotropic nickel-PDMS composites with uniaxial magnetic anisotropy obtained by emulsification under magnetic field
(Springer, 2017)"Magnetic microcomposites were fabricated by emulsification of a mixture of polydimethylsiloxane (PDMS) and nickel microparticles. The composites were obtained in a temperature-controlled water-surfactant media with and ... -
Shifted one-parameter supersymmetric family of quartic asymmetric double-well potentials
(2014)"Extending our previous work (Rosu, Mancas, Chen, Ann.Phys. 343 (2014) 87-102), we define supersymmetric partner potentials through a particular Riccati solution of the form F(x) = (x − c)2 − 1, where c is a real shift ... -
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 ... -
Silver nanoparticles loaded on Cu-doped TiO2 for the effective reduction of nitro-aromatic contaminants
(2015)"The addition of Cu species via copper glycine complexes as a strategy for doping the TiO2 structure during the sol–gel process produces a copper–TiO2-based composite. The combination of the copper–TiO2-based composite ... -
Simple method to synthesize functionalized carbon nanotubes employing cobalt nitrate and acetone by using spray pyrolysis deposition technique
(Hindawi Publishing Corporation, 2012)"Recently alcohols and ketones have been employed to sensitize CNT by CVD. A study has shown the importance of the chemical nature of those carbon precursors on the characteristics of the CNT (carbon nanotubes) obtained. ...