Ensenada Center for Scientific Research and Higher Education

About: Ensenada Center for Scientific Research and Higher Education is a facility organization based out in Ensenada, Mexico. It is known for research contribution in the topics: Population & Nonlinear system. The organization has 1934 authors who have published 3733 publications receiving 63115 citations.

Mercury and arsenic in muscle and liver of the golden cownose ray, Rhinoptera steindachneri, Evermann and Jenkins, 1891, from the upper Gulf of California, México.

Abstract: Mercury and arsenic levels in muscle and liver of Rhinoptera steindachneri were determined in organisms collected in 2006 Element concentrations in both tissues were directly related to size Maxima mean concentrations of Hg and As (041 and 599 μg g−1 dry wt, respectively) were found in adults muscle Mercury concentrations were significantly different between juveniles and adults in muscle and liver For As concentrations, differences between juveniles and adults were found only in muscle Mercury concentrations were higher in muscle of juveniles and adults Arsenic concentrations were higher in liver of juveniles, and in muscle of adults Maximum Hg concentration in muscle (065 μg g−1 dry wt) was below the safe limit established by Mexican regulations for seafood

Output synchronization of chaotic systems under nonvanishing perturbations

Abstract: In this paper, an analysis for chaos synchronization under nonvanishing perturbations is presented. In particular, we use model-matching approach from nonlinear control theory for output synchronization of identical and nonidentical chaotic systems under nonvanishing perturbations in a master–slave configuration. We show that the proposed approach is indeed suitable to synchronize a class of perturbed slaves with a chaotic master system; that is the synchronization error trajectories remain bounded if the perturbations satisfy some conditions. In order to illustrate this robustness synchronization property, we present two cases of study: (i) for identical systems, a pair of coupled Rossler systems, the first like a master and the other like a perturbed slave, and (ii) for nonidentical systems, a Chua’s circuit driving a Rossler/slave system with a perturbed control law, in both cases a quantitative analysis on the perturbation is included.

Second-harmonic generation from hyperbolic plasmonic nanorod metamaterial slab

Abstract: Hyperbolic plasmonic metamaterials provide numerous opportunities for designing unusual linear and nonlinear optical properties. We show that the modal overlap of fundamental and second-harmonic light in an anisotropic plasmonic metamaterial slab results in the broadband enhancement of radiated second-harmonic intensity by up to 2 orders of magnitudes for TM- and TE-polarized fundamental light, compared to a smooth Au film under TM-polarised illumination. The results open up possibilities to design tuneable frequency-doubling metamaterial with the goal to overcome limitations associated with classical phase matching conditions in thick nonlinear crystals.