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Envíos recientes
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Metabolitos secundarios del liquen Hypotrachyna chicitae
(Sociedad Química del Perú, 2013-06)Acceso abiertoEn el presente trabajo se estudió el liquen Hypotrachyna chicitae, recolectado en el departamento de Junín (Perú). Del extracto con cloroformo se aislaron dos metabolitos mayoritarios, los cuales fueron elucidados por ... -
Determinación de compuestos fenólicos y actividad antioxidante de extractos de alcachofa (Cynara scolymus L.)
(Sociedad Química del Perú, 2013-01)Acceso abiertoComo parte de un proyecto con la empresa Danper Perú, se evaluó el contenido de compuestos fenólicos y la actividad antioxidante de diversos extractos de alcachofa (Cynara scolymus L.), cultivada en el norte del Perú ... -
Análisis de biodiesel preparado a partir de residuos de aceite doméstico, mediante RMN
(Sociedad Química del Perú, 2014-01)Acceso abiertoSe preparó biodiesel a partir de residuos de aceite doméstico, mediante la reacción de transesterificación usando etanol. El rendimiento de la reacción fue del 78%, y el producto obtenido fue caracterizado por sus propiedades ... -
Contactless automated manipulation of mesoscale objects using opto-fluidic actuation and visual servoing
(AIP Publishing, 2014-05)Acceso abiertoThis work describes an automated opto-fluidic system for parallel non-contact manipulation of microcomponents. The strong dynamics of laser-driven thermocapillary flows were used to drag microcomponents at high speeds. ... -
Automated vision-based system for parallel contactless micromanipulation
(Institute of Electrical and Electronics Engineers, 2013-11)Acceso abiertoThis paper presents the automated parallel noncontact manipulation of glass beads ranging from 30 up to 300 μm in size under water. Non-contact micromanipulation is performed by generating controllable laser-induced ... -
A simple and accurate generalized shear deformation theory for beams
(Elsevier, 2015-12)Acceso abiertoThis paper presents a static analysis of functionally graded (FG) single and sandwich beams by using a simple and efficient 4-unknown quasi-3D hybrid type theory, which includes both shear deformation and thickness stretching ... -
Refined and generalized hybrid type quasi-3D shear deformation theory for the bending analysis of functionally graded shells
(Elsevier, 2015-12)Acceso abiertoThe closed-form solution of a generalized hybrid type quasi-3D higher order shear deformation theory (HSDT) for the bending analysis of functionally graded shells is presented. From the generalized quasi-3D HSDT (which ... -
Free vibration of single and sandwich laminated composite plates by using a simplified FSDT
(Elsevier, 2015-11)Acceso abiertoThis paper presents a simplified first order shear deformation theory (FSDT) for laminated composite and sandwich plates. Unlike the existing FSDT, the present one has a novel displacement field which include undetermined ... -
Dynamic analysis of functionally graded plates using a novel FSDT
(Elsevier, 2015-06)Acceso abiertoThe purpose of this paper is to study the vibrational behavior of advanced composite plates by using a novel first shear deformation theory (FSDT). This theory contains only four unknowns, with is even less than the classical ... -
A refined FSDT for the static analysis of functionally graded sandwich plates
(Elsevier, 2015-05)Acceso abiertoThis paper presents a static analysis of functionally graded plates (FGPs) by using a new first shear deformation theory (FSDT). This theory contains only four unknowns, with is even less than the classical FSDT. In this ... -
Thermoelastic behavior of advanced composite sandwich plates by using a new 6 unknown quasi-3D hybrid type HSDT
(Elsevier, 2015-08)Acceso abiertoThis paper presents an analytical solution for the thermoelastic bending analysis of advanced composite sandwich plates by using a new quasi-3D hybrid type HSDT with 6 unknowns which is based on a generalized formulation. ... -
Fractional Order PD and PID Position Control of an Angular Manipulator of 3DOF
(Institute of Electrical and Electronics Engineers, 2013-10)Acceso abiertoThis paper deals with the implementation of two position control systems: FOPID (Fractional Order Proportional Integral Derivative) and FOPD (FO Proportional Derivative), which are employed to control simultaneously angular ... -
Embedded position control system of a manipulator using a robust nonlinear predictive control
(Institute of Electrical and Electronics Engineers, 2013-11)Acceso abiertoThis paper deals with the implementation of a embedded position control system using a robust nonlinear predictive controller, which is employed to control simultaneously angular positions of the base and arm of an angular ... -
Industrial Internet education: Issues and opportunities
(Institute of Electrical and Electronics Engineers, 2014-06)Acceso abiertoWe propose an approach for addressing the challenges and meeting the needs of industrial networking education. The approach is based on using open source resources, key networking technologies, and an experimental framework ... -
Real-time diabetic retinopathy patient screening using multiscale AM-FM methods
(Institute of Electrical and Electronics Engineers, 2012-10)Acceso abierton this paper we present a robust and improved system for diabetic retinopathy (DR) screening. The goal of the system is to automatically screen out digital fundus photographs of diabetic patients who do not present signs ... -
Research laboratories and training undergraduate students from the freshman level to produce international conference-level publications
(Institute of Electrical and Electronics Engineers, 2014-12)Acceso abiertoWe present the first results of the teaching methodology applied at the Universidad de Ingeniería y Tecnología (UTEC), Lima, Peru, to involve undergraduate engineering students in advanced research projects starting at ... -
A multiscale decomposition approach to detect abnormal vasculature in the optic disc
(Elsevier, 2015-07-01)Acceso abiertoThis paper presents a multiscale method to detect neovascularization in the optic disc (NVD) using fundus images. Our method is applied to a manually selected region of interest (ROI) containing the optic disc. All the ... -
2D Instantaneous Frequency-based Method for Motion Estimation using Total Variation
(Institute of Electrical and Electronics Engineers, 2014-12)Acceso abiertoWe present a first approach to a new method to compute the motion estimation in digital videos using the two-dimensional instantaneous frequency information computed using amplitude-modulation frequency-modulation (AM-FM) ... -
Scalable Open-Source Architecture for Real-Time Monitoring of Adaptive Wiring Panels
(American Institute of Aeronautics and Astronautics, 2014-06-06)Acceso abiertoWe recently introduced the first prototype of an Adaptive Wiring Panel (AWP) which implemented a reconfigurable switch fabric that allows dynamic routing of analog, digital, and power signals for space system applications. ... -
2D amplitude-modulation frequency-modulation - based method for motion estimation
(Institute of Electrical and Electronics Engineers, 2015-02)Acceso abiertoWe present a new approach to compute the motion estimation in digital videos using 2D amplitude-modulation frequency-modulation (AM-FM) methods. The optical flow vectors are computed using an iteratively reweighted norm ...
