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Industrial Maintenance Engineering and Knowledge Management. Improvement in Business Efficiency
This article demonstrates the strategic level involving managementof knowledge in industrial maintenance engineering for businesseswith physical assets. The peculiarities that occur normally in this type ofbasic activity ... -
Integración de la Lógica Difusa a la Dinámica de Sistemas para la selección de terrenos de cultivos agrícolas
La instalación de un sistema agrícola es un proceso complejo que requiere de un conocimiento tanto del tipo de cultivo como de análisis de suelos de tal forma que se puedan obtener los mayores beneficios. Es por esto que ... -
Inflación colombiana pronosticada con un VAR bayesiano
En este trabajo se presentan los resultados de una aplicación de la estimación y pronóstico de modelos de Vectores Autorregresivos usando técnicas bayesianas (BVAR), para la inflación anual colombiana. Se comparan los ... -
LabVIEW y la instrumentación virtual aplicados a la docencia y la investigación en ciencias básicas
Este artículo muestra las principales características del lenguaje de programación gráfica LabVIEW y la instrumentación virtual. Muestra las características más importantes de este tipo de instrumenta- ción, las ventajas y ... -
Medición y evaluación de parámetros meteorológicos para el centro de Bogotá, Colombia
Mediante el empleo de instrumentación virtual, El Grupo de Procesos y Soluciones Energéticas (GP&SE) de la Universidad Central en Bogotá,adelantainvestigacionesrelacionadasconlamediciónyevaluación de radiación solar ... -
Metabolitos aislados de raputia heptaphylla y esenbeckia alata (rutaceae) y síntesis de precursores de análogos de alcaloides quinolínicos
Abstract. Previous studies on the Esenbeckia alata and Raputia heptaphylla,both species belonging to the Rutaceae family, have shownimportant results with respect to their chemistry. These species havesecondary metabolites ... -
Method to Calculate the Quantum Efficiency and Spectral Response of Solar Cells by Using LabVIEW
This article presents the classical procedures used to calculate the density of a short circuit spectral current for the base and the transmitter of a solar cell. Afterwards, we calculated its quantum efficiency and ... -
Métodos de inferencia estadística para entrenamiento de modelos ocultos de Markov
Este documento presenta una revisión general de las diferentes aproximaciones y métodos en inferencia estadística, aplicados al problema de entrenamiento o ajuste de parámetros en Modelos Ocultos de Markov. Se tratarán los ... -
Modelado de sensores basado en la Arquitectura MDA para microrredes eléctricas
En este artículo se propone un modelo basado en la arquitectura MDA (Model Driven Architecture) para el diseño de una red de sensores inalámbricos que monitorea variables de tensión y corriente en una microrred eléctrica. ... -
Modeling of the Stump/Socket Junction Mechanical Behavior in Lower-Limb Amputees
It was possible to determine the behavior of the stump/socket junction in a transtibial amputation by using the finite element method. The area of interest includes the skin, the socket, and the bone as elements in contact. ... -
Multiplexing schemes for homomorphic cryptosystems
We present in this article two secure multiplexing and demul- tiplexing schemes that use homomorphic properties from known public key cryptosystems. One scheme is suitable for cryptosystems with addi- tive homomorphic ... -
Nondimensionalization of a differential equation in a practical engineering problem
This work shows an application of Buckingham Pi theorem to obtain dimensionless parameters from a differential equation used to model an elastic damper system attached to the bumper of a car. Although the original problem ... -
Obtaining fatty acids from biomass microalgal grown under differemt lightining conditions
It is considered that microalgae fatty acids have the potential to be used as raw material for the production of biofuels such as biodiesel or food supplements. The experimental treatment consisted in the exposure of the ... -
Particle size distribution of iron tetracarboxifenilporfirina (III) adsorbed on silicon dioxide by dynamic light scattering
Particle size distribution is a critical property for characterizing particles in suspension systems. Porphyrins are sensitizers essential for different photo-chemical applications, however these compounds form aggregates ... -
Physicochemical Characterization of the mo/cuins2/zn(o,oh)s/zno System by Using Photoelectron Spectroscopy XPS and AES
Volume and surface spectroscopy techniques are reliable analytical methods to characterize thin films of different materials. This paper presents results related to the composition of the absorbing film (CuInS2) and the ... -
Productivity Behavior in a Cluster of Plastic Companies Established in Bogotá D.C. and Dedicated to the Manufacture of Containers, Packing, and Packaging from 2003 to 2009
This article indicates the productivity status in the plastic cluster sector in the city of Bogotá, under the terms set by the production function of Cobb-Douglas in order to establish the related points between a specific ... -
Proposal of a Linear Differential Equation of First Order that Shapes A Mixture Problem: Mobilization Difficulty among Representation Records and Natural and Algebraic Language
Although the notion of differential equation is present in fields such as mathematics and engineering , understanding by students and some teachers has been limited due to the algebraic approach that has focused teaching ... -
Propuesta de diseño de un simulador de un microscopio electrónico de barrido para el desarrollo de aprendizaje significativo en nanotecnología
Se hace un estudio donde se identifica la necesidad de herramientas virtuales de aprendizaje de bajo coste para la enseñanza en nanotecnología y se propone el diseño de un simulador educativo para un equipo de microscopía ... -
Raman investigation of electric field induced molecular modifications in organic field effect transistors
The influence of external electric fields on the vibrational properties of Pentacene-based field effect transistors were investigated by Ramanspectroscopy.ThemonitoredRamanbandswereintherangefrom 1100cm−1 to1200cm−1,whereabr ... -
Redesign and optimization of a device small-scale composting to be used in urban agriculture projects
Small-scale composting on closed devices was one of the key research topics of the Bogota Botanical Garden (JBB) for the development of the Urban Agriculture Project 319 activities. Given the consolidation scenario of an ...