Repositorio TEC: Envíos recientes
Mostrando ítems 5321-5340 de 9060
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Modelado de forma de larvas utilizando máquinas restringidas de Boltzmann
(Instituto Tecnológico de Costa Rica, 2015)Occlusion and presence of incomplete shapes on digital images of vermiform structures as larvae make the automated process for larvae counting and segmentation hard to complete. The suggested solution provides a method ... -
Design, simulation and validation of an equivalent circuit model for a valveless piezoelectric micropump
(Instituto Tecnológico de Costa Rica, 2016)Equivalent electric circuit models are commonly used in microfluidics to represent the dynamic behavior of fluidic components in terms of their equivalent electric counterparts. FEM simulation tools are widely used for ... -
Diseño y Caracterización de Electrodos para la identificación de Sustancias Químicas en Medio Acuoso
(Instituto Tecnológico de Costa Rica, 2016)The pollution of water resources has become a major concern of government and private organizations. Additionally, the gradual decline of this resource recall to protect water sources that are not contaminated and can ... -
Identificación de la temperatura electrónica de un plasma frío por medio de redes neuronales artificiales
(Instituto Tecnológico de Costa Rica, 2015)In plasma nuclear fusion devices, the performance of the experiments is related to their diagnostic capability, that is, the capability to effectively obtain the plasma parameters involved in each experiment. In the ... -
Sequential code parallelization for multi-core embedded systems: A survey of models, algorithms and tools
(Instituto Tecnológico de Costa Rica, 2014)In recent years the industry experienced a shift in the design and manufacture of processors. Multiple-core processors in one single chip started replacing the common used single-core processors. This design trend reached ... -
Sistema de tiempo real para el análisis de vibracion en puentes
(Instituto Tecnológico de Costa Rica, 2015)This document proposes the development of a real-time embedded system for online vibration analysis on bridges, where the main considerations of this analysis are presented, as well as techniques to reduce power consumption ... -
Estructura microfluídica para espectroscopía de impedancia de células humanas
(Instituto Tecnológico de Costa Rica, 2016)This master's project is part of a research project at Instituto Tecnológico de Costa Rica, aiming at confining cells in microfluidic devices to be subsequently analyzed by impedance spectroscopy. The problem of confining ... -
Estudio y optimización de la variabilidad y sus efectos en un OTA con degeneración de cuerpo
(Instituto Tecnológico de Costa Rica, 2016)In this report, it is documented a study about transistors mismatching in Operational Transconductance Amplifiers (OTA), particularly a body degenerated OTA. With the help of Dr. Alfredo Arnaud, Dr. Roberto Pereira and ... -
Design and implementation of a MEMS piezoelectric sensor array for patient specific instrumentation used for total ankle replacement
(Instituto Tecnológico de Costa Rica, 2017)For several decades, research has been conducted for Total Ankle Replacement (TAR) to be established as the optimal surgical treatment for diseased or degenerative ankle joints. Few reports exist regarding patient specific ... -
Implementación de un microprocesador de aplicación específica para la ejecución del algoritmo de modelos ocultos de Markov en el reconocimiento de patrones acústicos.
(Instituto Tecnológico de Costa Rica, 2015)In this work, the classification unit of an acoustic pattern recognition system based in the algorithm of Hidden Markov Models (HMM) was developed for the detection of gunshots and chainsaws in a protected tropical area, ... -
Cultivo in vitro de Geophila macropoda (Ruiz & Pav.DC) a partir de embriones cigóticos
(2010)El objetivo de esta investigación fue desarrollar un protocolo para el cultivo in vitro de Geophila macropoda. Este trabajo se efectuó en Guácimo de Limón, Costa Rica, entre junio del 2006 y febrero del 2007. En la fase ... -
Brotación in vitro de brotes de teca (Tectona grandis L.f.)
(2012)Teak (Tectona grandis L. f.) is an exotic timber species introduced to Costa Rica for commercial plantations due to the high demand for its wood, rapid growth and high-quality. Initially the seed was use as the only planting ... -
Crioconservación de semillas de teca (Tectona grandis L. f)
(2013)La teca (Tectona grandis L.f) es un árbol tropical con gran demanda por la alta calidad de su madera y rápido crecimiento. Los programas de mejoramiento genético para esta especie han dado como resultado semillas de mejor ... -
Guidelines for documenting and reporting tree allometric equations
(Springer-Verlag France, 2015-09)Given the pressing need to quantify carbon fluxes associated with terrestrial vegetation dynamics, an increasing number of researchers have sought to improve estimates of tree volume, biomass, and carbon stocks. Tree ... -
Establecimiento de un protocolo para la conservación in vitro a mediano plazo de uña de gato (Uncaria Tomentosa (Willd). D.C.)
(2011)Aproximadamente el 25% de los medicamentos de patente posee algún componente o es derivado de plantas. La importancia farmacológica de la uña de gato (U. tomentosa) radica en la producción de alcaloides empleados en medicina ... -
Micropropagación de Pilón (Hieronyma Alchorneoides)
(2011)El pilón (Hieronyma alchorneoides, Euphorbiaceae) es una de las especies nativas maderables de Costa Rica mejor adaptadas a condiciones abiertas de plantación; por sus características de crecimiento y variedad de usos, la ... -
Overcoming obstacles to sharing data on tree allometric equations
(Springer-Verlag France, 2015-09)Advances in ecology face the complexity of ecosystems with dynamics longer than a single scientist’s career. In forestry and REDD+ practice, in particular, our ability to understand forest ecosystem dynamics and to manage ... -
An overview of existing and promising technologies for national forest monitoring
(Springer-Verlag France, 2015-09)The main goal of national forest programs is to lead and steer forest policy development and implementation processes in an inter-sectoral way (FAO 2006). National forest monitoring systems contribute to forest programs ... -
Crioconservación de ápices y semillas de cedro (Cedrela odorata L.) mediante las técnicas de vitrificación y deshidratación
(2013)En busca de proteger el recurso forestal de Cedrela odorata L., actualmente amenazado, se planteó la necesidad de establecer un protocolo para su crioconservación; la investigación se realizó con ápices y semillas. Con los ... -
Uso de biotecnología modifica salmón para que crezca en la mitad del tiempo convencional
(Revista Alimentaria. Cámara Costarricense de la Industria Alimentaria. Edición 141, año 2015., 2015-01)Transgenic crops of plant origin are widely used globally in animal and male diets, however, no genetically modified animal has been approved for human consumption. This article mentions about the process and the regulated ...