Listar ESID_Articles por título
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On the relationship between the specific heat enhancement of salt-based nanofluids and the ionic exchange capacity of nanoparticles
Nature Publishing Group (2018)Nanoparticles have been used in thermal applications to increase the specific heat of the molten salts used in Concentrated Solar Power plants for thermal energy storage. Although several mechanisms for abnormal enhancement ... -
On the Unique Morphology and Elastic Properties of Multi-Jet Electrospun Cashew Gum-Based Fiber Mats
MDPI (2024)This study investigates the unique morphology and mechanical properties of multi-jet electrospun cashew gum (CG) when combined with high-molecular-weight polyethylene oxide (PEO) and glycerol. Cashew gum (CG) is a low-cost, ... -
On the use of ball milling to develop PHBV-graphene nanocomposites (I)-Morphology, thermal properties, and thermal stability
© 2015 Wiley Periodicals, Inc. (2015-03)In the first part of this work, novel nanocomposites based on poly (3-hydroxybutyrate co-3-hydroxyvalerate) (PHBV) and functionalized graphene nanosheets (FGS) were prepared through ball milling. As revealed by morphological ... -
On the use of ball milling to develop poly(3-hydroxybutyrate-co-3-hydroxyvalerate)-graphene nanocomposites (II)—Mechanical, barrier, and electrical properties
© 2015 Wiley Periodicals, Inc. (2015-04)In this work, poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) nanocomposites containing functionalized graphene sheets (FGS) were prepared by means of high-energy ball milling. The crystalline structure, oxygen barrier, ... -
On the Use of the Electrospinning Coating Technique to Produce Antimicrobial Polyhydroxyalkanoate Materials Containing In Situ-Stabilized Silver Nanoparticles
MDPI (2017)Electro-hydrodynamic processing, comprising electrospraying and electrospinning techniques, has emerged as a versatile technology to produce nanostructured fiber-based and particle-based materials. In this work, an ... -
On the use of tris(nonylphenyl) phosphite as a chain extender in melt-blended poly(hydroxybutyrate-co-hydroxyvalerate)/clay nanocomposites: Morphology, thermal stability, and mechanical properties
© 2015 Wiley Periodicals, Inc. (2015-06)The influence of the incorporation of tris(nonylphenyl) phosphite (TNPP) as a chain extender on the morphology and thermal stability of poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV)/clay nanocomposites obtained by melt ... -
On-line retuning of PID controllers with fixed threshold samplers
Elsevier (2023-04-11)The appearance of limit cycle oscillations in control systems with fixed threshold based samplers degrades the performance of the control loop, accelerates the wear out of actuators, and introduces an unnecessary communication ... -
One-Cycle Zero-Integral-Error Current Control for Shunt Active Power Filters
MDPI (2020-11-26)Current control has, for decades, been one of the more challenging research fields in the development of power converters. Simple and robust nonlinear methods like hysteresis or sigma-delta controllers have been commonly ... -
Optimal averaging time for improving observer accuracy of stochastic dynamical systems
Elsevier (2020-09-02)In the problem of remote estimation by a centralized observer, improvements to the accuracy of observer estimates come at a cost of higher communication bandwidth and energy consumption. In this article we improve observer ... -
Optimal sampling pattern for free final time linear quadratic regulator: the scalar case
Taylor & Francis (2020-12-28)The optimal sampling problem is the selection of the optimal sampling instants together with the optimal control actions such that a given cost function is minimized. In this article we solve the optimal sampling problem ... -
Optimal Sampling Pattern for the Free Final Time Linear Quadratic Regulator
Institute of Electrical and Electronics Engineers (2021-04-20)The optimal sampling problem is the selection of the optimal sampling instants together with the optimal control actions such that a given cost function is minimized. In this article, we solve the optimal sampling problem ... -
Optimal tuning of PID controllers with derivative filter for stable processes using three points from the step response
ISA Transactions (2023)This paper proposes a novel approach for tuning Proportional Integral Derivative (PID) controllers, utilizing experimental data obtained from an open-loop step input. We propose to use the measurements of the times taken ... -
Optimization Algorithm for Selective Compensation in a Shunt Active Power Filter
Institute of Electrical and Electronics Engineers (IEEE) (2015-06)This paper proposes an optimization algorithm based on linear matrix inequalities (LMIs) to be implemented in a shunt active power filter (SAPF) enabling it to perform a selective compensation of nonefficient powers when ... -
Optimization of deposition voltage of cataphoretic automotive primers assessed by EIS and AC/DC/AC
Elsevier (2009)The dependence of the anticorrosive properties of a cataphoretic paint with the applied deposition voltage was studied by the so-called EIS tests; an accelerated cyclic test used in the automotive industry; and a rapid ... -
Optimized profitability of LFP and NMC Li-ion batteries in residential PV applications
Elsevier (2020)This paper analyses the economic profitability provided by different types of Li-ion batteries when used in residential solar applications under a Model Predictive Control that optimizes the operation of the system. The ... -
Osseointegration mechanisms: a proteomic approach
Springer-Verlag (2018-03)The prime objectives in the development of biomaterials for dental applications are to improve the quality of osseointegration and to short the time needed to achieve it. Design of implants nowadays involves changes in ... -
Osteointegración de implantes de titanio con superficies activas. Un estudio proteómico
Ediciones Peldaño (2017-12)Titanium is a biomaterial largely used on dental implant manufacturing. However, as a consequence of its intrinsically low bioactivity, the development of distinct superficial treatments in order to enhance its ... -
Oxidation behaviour at 1123 K of AISI 304-Ni/Al-Al2O3/TiO2 multilayer system deposited by flame spray
Consejo Superior de Investigaciones Científicas (2011)The oxidation behaviour of alumina/titania (97/3, 87/13 and 60/40) ceramic coatings using a Ni-Al coupling layer was studied in a thermobalance. Both layers were deposited on an AISI 304 stainless steel base metal by the ... -
Parallel laser micromachining based on diffractive optical elements with dispersion compensated femtosecond pulses
Optical Society of America (2013)We experimentally demonstrate multi-beam high spatial resolution laser micromachining with femtosecond pulses. The effects of chromatic aberrations as well as pulse stretching on the material processed due to diffraction ... -
Parameter estimation of squirrel-cage motors with parasitic torques in the torque-slip curve
Institution of Engineering and Technology (2015)This paper studies parasitic torques in steady-state torque-slip curves of squirrel-cage induction motors. The curves of nine motors (small, medium and large size units), three of which were measured in the range s = 2 ...