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A Parallel Framework with Block Matrices of a Discrete Fourier Transform for Vector-Valued Discrete-Time Signals
(Hindawi Publishing Corporation, 2015)This paper presents a parallel implementation of a kind of discrete Fourier transform (DFT): the vector-valued DFT. The vector-valued DFT is a novel tool to analyze the spectra of vector-valued discrete-time signals. This ... -
A Recommender System for Learning Objects on a Learning Management System: Implementation Experience
(LACLO 2016, 2016)This paper aims to present the experience of implementing a recommender system for selecting learning objects (LO) for lessons through the Learning Management System (LMS) of Costa Rica Institute of Technology. Our ... -
A simple approach for the design of operational transconductance amplifiers for low power signal processing
(IEEE, 2010)A simple approach for the design, fabrication and characterization of a operational trasconductance amplifier intended for work in low power applications is reported in this work. DC Measured parameters agree with ... -
A Texture and Curvature Bimodal Leaf Recognition Model for Costa Rican Plant Species Identification
(Instituto Tecnológico de Costa Rica, 2014)In the last decade, research in Computer Vision has developed algorithms to help botanists and non-experts classify plants based on images of their leaves. Nevertheless, very few efficient tools have resulted from that ... -
A top-down design approach for an automated testing framework
(Springer Verlag, 2015)Mobile applications have become popular work tools. Portability and ease of Internet connectivity are characteristics that favor this adoption. However, mobile applications sometimes incorrectly process events associated ... -
A WDM 4x28Gbps integrated silicon photonic transmitter driven by 32nm CMOS driver ICs
(OSA - The Optical Society, 2015)A four-channel WDM silicon photonic transmitter with integrated lasers and modulators driven by low-power 32nm CMOS drivers, is demonstrated to operate at a data rate of 4×28Gb/s with BER<10-12 and power consumption of 10.0pJ/bit. -
A WDM-Compatible 4 × 32-Gb/s CMOS-driven electro-absorption modulator array
(OSA - The Optical Society, 2015)A four-channel electro-absorption-modulator array, driven by 32-nm CMOS drivers providing 2-V peak-to-peak output swing, operates with BER < 10-12 at a data rate of 4 × 32 Gb/s and dissipates 170 mW of power. -
Academia de Artes Escénicas Improptu-Giratablas
(Instituto Tecnológico de Costa Rica, 2014)A veinte años de su fundación, la Academia de Artes Escénicas y Teatro Giratablas le hereda su administración al grupo Impromptu-Teatro quienes toman las riendas con el reto de mantener el compromiso de la Academia y ...