Repositorio TEC: Recent submissions
Now showing items 5661-5680 of 9229
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Crioconservación de plantas, estado actual de la investigación en Costa Rica
(1999)En Costa Rica, la investigación en crioconservación es reciente. Inició en 1990 con un proyecto en bananos y plátanos desarrollado en el Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), seguido por proyectos ... -
LaGeR workbench: A language and framework for the representation and implementation of device-agnostic gestural interactions in 2D and 3D
(Springer Verlag, 2015)The recent rise of virtual and augmented reality applications, ambient intelligence, as well as video games have encouraged the proliferation of gestural input devices such as the Razer Hydra, Leap Motion Controller, and ... -
Mineral content in relation to radial position, altitude, chemical properties and density of persian ironwood
(Universidade Federal de Sao Carlos, 2015)Persian ironwood (Parrotia persica) is native species from Iran and covers 10,54% of the commercial volume. Its wood structure and its chemical composition are affected by growth conditions. The aim of the study was to ... -
Performance of Two Hydrological Models in Predicting Daily Flow under a Climate Change Scenario for Mountainous Catchments in Northwestern Costa Rica
(International Mountain Society, 2015)(Figure Presented) Tropical mountain regions contain the main headwaters of important rivers in Central America. We selected 2 contrasting catchments located in a mountainous region to evaluate the precision of daily flow ... -
Physical properties and fiber dimension in Stem, Branch and root of Alder Wood
(Parlar Scientific Publications, 2015-01)The aim of this study was to determine physical properties and fiber dimensions in stem, branch and root wood for alder (Alnus glutinosa L) species. For this purpose, three normal alder trees were selected from Khanican ... -
Analysis of source separation algorithms in industrial acoustic environments
(Institute of Electrical and Electronics Engineers Inc., 2015)This paper shows the results from the computation cost evaluation of three blind source separation algorithms. The algorithms tested were: FastICA, Adaptive Algorithm Based on Natural Gradient, and Adaptive EASI Based on ... -
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. -
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. -
Quality of pellets made from agricultural and forestry crops in costa rican tropical climates
(North Carolina State University, 2015)Pellets may be produced with different types of agriculture or forestry crops in Costa Rica. This work evaluated the energy, physical, and mechanical properties of pellets fabricated from 12 types of agricultural and ... -
Not-from-concentrate pilot plant ‘Wonderful’ cultivar pomegranate juice changes: Volatiles
(Elsevier, 2017)Pilot plant ultrafiltration was used to mimic the dominant U.S. commercial pomegranate juice extraction method (hydraulic pressing whole fruit), to deliver a not-from-concentrate (NFC) juice that was high-temperature ... -
Diseño de una cara emocional para un robot humanoide
(Instituto Tecnológico de Costa Rica, 2016)The following document describes the design process for an emotional face for a humanoid robot in the Autonomous Robots and Cognitive Systems (ARCOSLAB) from the University of Costa Rica. This project comes up as an ... -
Sistema de control automático de pasteurización
(Instituto Tecnológico de Costa Rica, 2015)Recently, the demand for natural products has increased, this leads to companies to develop and have more efficient processes; which is achieved through progressive automation of the crucial elements of production. In ... -
Reducing warp and checking in 4 by 4 beams from small-diameter tropical species (tectona grandis, gmelina arborea, and cordia alliodora) obtained by turning the pith inside out.
(Forest Products Society, 2015)Small-diameter logs from plantation trees are prone to warp and to produce checks due to the presence of juvenile wood, growth stresses, and asymmetric shrinkage during the drying process. In the present study, we analyzed ... -
3D scanning and detection of objects for a subsequent manipulation by a collaborative robot
(Instituto Tecnológico de Costa Rica, 2016)The present document is a brief description of what the project "3D scanning and detection of objects for a subsequent manipulation by a collaborative robot" will be about, and how the solution will be approached. The ... -
Sistema para mejorar la productividad y confiabilidad del proceso de empaque para productos moldeados por inyección en Panduit de Costa Rica Ltda
(Instituto Tecnológico de Costa Rica, 2016)This document describes each one of the steps necessary to carry out the project "System to improve productivity and reliability of the packaging process by molded injection of Panduit of Costa Rica Ltda." Different ... -
Design of monitoring system for photovoltaics performance verification plant in Project Las Nubes
(Instituto Tecnológico de Costa Rica, 2015)The present report describes the design of a monitoring system for the Photovoltaics Performance Verification that will implemented in Project Las Nubes, developed by the author of this thesis within the Sustainable ... -
Sensibility analysis of the Trace Transform on land coverage images
(Institute of Electrical and Electronics Engineers Inc., 2015)Aerial or satellital images may be used to produce terrain coverage maps, which in time are a very useful and important tool for decision-making in several fields including biodiversity, telecommunications and natural ... -
Diseño de una mesa cortadora de precisión corte por plasma, para la empresa Fabricación Industrial Comercial MAMS
(Instituto Tecnológico de Costa Rica, 2015)The present document describes the design development of a precision plasma cutting machine in the Ficmams worshop. This project arises from the costs of the current process used in the manufacturing of equipment, its ... -
Diseño e implementación del prototipo Ensambladora Luer-Cap
(Instituto Tecnológico de Costa Rica, 2015)The following document describes the design and implementation process of a prototype used in the automatic assembly of the tapa-conector subassembly. The project was conducted in the Baxter Productos Médicos manufacturing ... -
Robótica inteligente: Implementación de sensores 3D para desenvolvimiento de robots móviles y vehículos autónomos
(Instituto Tecnológico de Costa Rica, 2015)This project was developed in the Universidade de São Paulo in Brasil, on the campus located in the city of São Carlos. The work was done specifically in the Laboratório de Robótica Móvel, which belongs to the Instituto ...