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Transport, stability and plasma control studies in the TJ-II stellarator
(Institute of Physics Publishing, 2015-07)
The main TJ-II results since 2012 are presented in this overview. Impurity confinement is studied showing an isotopic dependence of impurity confinement time, asymmetries in parallel impurity flows in TJ-II ion-root plasmas ...
Engineering of the Stellarator of Costa Rica: SCR-1
(Institute of Physics Publishing, 2015-03)
This Paper aims at briefly describing the challenge of the design and construction of the Stellarator of Costa Rica 1 (SCR-1) [1]. The SCR-1 is a small modular Stellarator for magnetic confinement of plasma (Ro=0.238 m, ...
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 ...
Desarrollo de técnicas de medición no destructivas GS y XR para la determinación de gradientes de densidad y caracterización mecánica de materiales estructurales porosos y celulares
(Instituto Tecnológico de Costa Rica. Vicerrectoría de Investigación y Extensión. Escuela de Ingeniería en Producción Industrial., 2018)
Los materiales con estructura porosa y celular son objeto de estudios debido a las potenciales aplicaciones que presentan en los diversos sectores de la industria. Un desafío importante para la definición de estas aplicaciones ...
Digital integrated circuit implementation of an identification stage for the detection of illegal hunting and logging
(Institute of Electrical and Electronics Engineers Inc., 2015-09)
Results of the VLSI implementation of an acoustic classification system's identification stage, intended for the detection of gunshots and chainsaws in a protected tropical area, are shown, with the idea of later building ...
Energy-Aware Signal Integrity Analysis for High-Speed PCB Links
(Institute of Electrical and Electronics Engineers Inc., 2015-05)
This paper proposes a novel approach to evaluate design alternatives for high-speed links on printed circuit boards. The approach combines evaluations of signal integrity and link input power. For a comprehensive analysis, ...
Four-channel WDM transmitter with heterogeneously integrated III-V/Si photonics and low power 32 nm CMOS drivers
(Journal of Lightwave Technology, 2016)
We experimentally demonstrate a novel four-channel
wavelength division multiplexing transmitter operating at 1.3 μm
wavelength employing heterogeneously integrated III-V/Si photonic
circuit copackaged with low-power ...
Método “solución de problemas por objetivos” para la enseñanza de mecánica vectorial en ingeniería, caso de estudio: dinámica
(Revista Educación en Ingeniería, 2019-03)
Se propone un método de enseñanza para la solución de problemas orientado a relacionar directamente las variables de interés con la información disponible en cada caso. El objetivo es fortalecer la ...
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 ...
Going deeper in the automated identification of Herbarium specimens
(BioMed Central, 2017-08-11)
Hundreds of herbarium collections have accumulated a valuable heritage and knowledge of plants over several centuries. Recent initiatives started ambitious preservation plans to digitize this information and make it available ...