Repositorio IPICyT: Recent submissions
Now showing items 1121-1140 of 2310
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Gold recovery from very dilute solutions from a mine in closing process: adsorption-desorption onto carbon materials
(Elsevier B.V., 2017-08)"The aurocyanide complex recovery by precipitation with zinc decreases when gold concentration drops to < 20 μg L− 1. Therefore, a technology capable of recovering gold from very diluted solution is necessary. Adsorption ... -
Arsenic contamination in irrigation water, agricultural soil and maize crop from an abandoned smelter site in Matehuala, Mexico
(Elsevier B.V., 2017-10)"Mobility of Arsenic (As) from metallurgical wastes in Matehuala, Mexico has been accounted for ultra-high concentration of As in water (4.8–158 mg/L) that is used for recreational purposes as well as cultivation of maize. ... -
Control strategy of a quadratic boost converter with voltage multiplier cell for high-voltage gain
(IEEE, 2017-12)"The need of dc-dc switching converters for power supplies with high-voltage gains has increased in the recent years due to new applications in areas as renewable energy systems, transportation, industrial, medical, and ... -
Robust sliding mode‐based extremum‐seeking controller for reaction systems via uncertainty estimation approach
(John Wiley & Sons, 2017-01)"This paper deals with the design of a robust sliding mode‐based extremum‐seeking controller aimed at the online optimization of a class of uncertain reaction systems. The design methodology is based on an input–output ... -
Synthesis of reduced graphene oxide (rGO) films onto carbon steel by cathodic electrophoretic deposition: anticorrosive coating
(Elsevier, 2017-10)"The use of graphene based materials as anticorrosive coatings for the protection of metals is still a controversial subject worthy of debate. The electrophoretic deposition (EPD) is one of the most used techniques to ... -
Photosynthetically active radiation and carbon gain drives the southern orientation of Myrtillocactus geometrizans fruits
(John Wiley & Sons, 2017-03)"The equatorial orientation of reproductive structures is known in some columnar cacti from extratropical deserts. It has been hypothesised that photosynthetically active radiation (PAR) interception is the main reason for ... -
Germination characteristics of Gymnocalycium monvillei (Cactaceae) along its entire altitudinal range
(2017-04)"Germination characteristics are important for understanding how species cope with environmental variation. The aims of this work were to analyze the effect of different temperatures (25 and 32 °C), water potentials (0, ... -
Global stabilisation of the PVTOL aircraft with lateral force coupling and bounded inputs
(Taylor & Francis LTD, 2010-06)"This work is devoted to prove that the nonlinear control scheme previously proposed by Zavala-Río, Fantoni and Lozano for the global stabilisation of the planar vertical take-off and landing (PVTOL) aircraft with bounded ... -
Finite-time observer-based output-feedback control for the global stabilisation of the PVTOL aircraft with bounded inputs
(Taylor & Francis LTD, 2016-05)"In this work, an output-feedback scheme for the global stabilisation of the planar vertical take-off and landing aircraft with bounded inputs is developed taking into account the positive nature of the thrust. The global ... -
Global finite-time stability characterized through a local notion of homogeneity
(IEEE, 2014-02)"In this work, a notion of local homogeneity is formally defined. Important results involving homogeneous functions or vector fields are reformulated in the consequent local context. In particular, global finite-time ... -
Bounded positive adaptive control for counterflow heat exchangers
(International Federation of Automatic ControlInternational Federation of Automatic Control, 2007)"In this work, we propose an outlet temperature control scheme for counterflow heat exchangers, that takes into account and actually exploits the analytical-stability features inherent to the open-loop dynamics. As a result, ... -
Closed-loop stabilization of a class of Lur'e system: application to chaos control
(International Federation of Automatic Control, 2005)"In this paper the problem of closed-loop stabilization of a class of Lur'e system is addressed. Under certain conditions of the static non-linearity, the control problem is proved that can be converted to a simultaneous ... -
Chitosan selectivity for removing cadmium (II), copper (II), and lead (II) from aqueous phase: pH and organic matter effect
(Elsevier B.V., 2009-02)"The aim of this study was to investigate the selectivity of chitosan for cadmium, copper and lead in the presence and absence of natural organic matter (NOM) in different pH solutions. Adsorption isotherms of one and three ... -
Arabidopsis thaliana sucrose phosphate synthase (sps) genes are expressed differentially in organs and tissues, and their transcription is regulated by osmotic stress
(Elsevier B.V., 2017-11)"Sucrose is synthesized from UDP-Glc and Fru-6-phosphate via the activity of sucrose-phosphate synthase (SPS) enzymes, which produce Suc-6-phosphate. Suc-6-phosphate is rapidly dephosphorylated by phosphatases to produce ... -
Robust global stabilizing bounded control of a PVTOL aircraft with lateral coupling
(International Federation of Automatic Control, 2005)"This note provides a detailed stability analysis of a global stabilizing control algorithm for a PVTOL aircraft with lateral coupling (è ≠ 0) and bounded inputs. Such control approach was originally proposed considering ... -
Speed-gradient adaptive high-gain observers for synchronization of chaotic systems
(International Federation of Automatic ControlInternational Federation of Automatic Control, 2007)"We address the problem of output feedback synchronization of certain chaotic systems, under parameter uncertainty. That is, given a master system, the objective is to design a slave system that copies the dynamics of the ... -
Propiedades estructurales y magnéticas de aleaciones subnanométricas de FePt
(2018-08)"Las nanoaleaciones binarias, compuestas por metales de transición, han sido objeto de numerosos estudios, ya que se espera que las propiedades de los elementos individuales se acoplen y potencialicen al ser mezclados. Del ... -
Opuntia spp.: characterization and benefits in chronic diseases
(Hindawi Publishing Corporation, 2017)"Opuntia species have been used for centuries as food resources and in traditional folk medicine for their nutritional properties and their benefit in chronic diseases, particularly diabetes, obesity, cardiovascular diseases, ... -
H2Ti3O7 nanotubes decorated with silver nanoparticles for photocatalytic degradation of atenolol
(Hindawi Publishing Corporation, 2017)"The photocatalytic degradation/adsorption process of the β-blocker atenolol (ATL) under UV irradiation is described using two types of silver decorated catalysts: silver/titania and silver/titanates. The silver ions were ... -
Highly efficient production of nitrogen-doped multiwalled carbon nanotubes using banded iron formation from the Bundelkhand craton located in the north of India
(2018)"Los polvos de formación de hierro bandeado (FHB) son rocas sedimentarias de la era precámbrica, formadas principalmente por bandas de óxidos de hierro y sílice. Hemos utilizado polvos de FHB del cráter de Bundelkhand, ...