Browsing Investigacion by Title
Now showing items 655-674 of 947
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Objetos simbólicos de consumo y su relación con la construcción de identidad de las generaciones de consumidores en la ciudad de Cali–Colombia
(Revista Global de Negocios, 2015)Consumption has a meaning that goes beyond the utilitarian nature and commercial value of the product. This meaning is based on the ability of consumption to contain and communicate personal and cultural meanings. The aim ... -
El Obrero Sol
(Universidad Autónoma de Occidente, 2005-01) -
Obtención de un biocompuesto constituido por fosfato tricálcico y quitosana para ser usado como sustituto óseo en un modelo animal
(Revista Cubana de Investigaciones Biomédicas, 2012-07)The research deals with the development of a biocomposite from a ceramic matrix and a polymer with the purpose of using it as bone filler. A mixture was made of the ceramic matrix, tricalcium phosphate Ca (OH)2 and chitosan, ... -
Obtención y caracterización de geopolímeros, sintetizados a partir de ceniza volante y piedra pómez, utilizados para el desarrollo y mejoramiento del concreto
(Universidad Autónoma de Occidente, 2012-04) -
Obtención y purificación de extractos de la enzima monóxido de carbono deshidrogenasa de Oligotropha carboxidovorans (cepa OM 5) con actividad de oxidación de monóxido de carbono detectable electroquímicamente por medio de un microelectrodo de platin
(Universidad Autónoma de Occidente, 2006-01)Extracts of the enzyme carbon monoxide dehydrogenase capable to oxidize carbon monoxide to CO2 were obtained from the carboxidotrophic bacteria Oligotropha carboxidovorans OM5 cultivated under aerobic conditions in a mineral ... -
Oferta de horas de trabajo en Colombia: una aproximación a sus determinantes, 2012
(Universidad de La Salle, 2016)Cuando se participa en el mercado laboral, la decisión de un in-dividuo radica en determinar la cantidad de horas de trabajo por ofertar, situación ilustrada por la teoría económica a través de los efectos renta y sustitución. ... -
Omnidirectional photonic band gaps in one-dimensional gradient refractive index photonic crystals considering linear and quadratic profiles
(Elsevier, 2021-12)By using the transfer matrix formalism, in this work it is presented the study of the optical properties of 1D photonic structures constructed with M periods of bilayers of dielectric material and slabs with gradient ... -
On pressure drop in particle-laden horizontal channel flow
(Universidad Autónoma de Occidente, 2007-01)El presente estudio analiza la pérdida de presión en el flujo gas-sólido que se desarrolla en un canal horizontal de sección rectangular desde los puntos de vista experimental y numérico. Tanto los experimentos como los ... -
Online dynamic assessment of system stability in power systems using the unscented Kalman filter
(2019)Dynamic state estimation on of power systems stability based on Phasor Measurement Units (PMUs) data is a requirement in order to assess power system security. This paper addresses the state estimation problem from a strong ... -
Optical and tribo-mechanical characterization in metal-ceramic multilayers coatings
(Revista Mexicana de FisicaMéxico, 2020-08)Laboratory scale studies of tribological properties of nitride coatings are useful in predicting their protective wear behavior in cutting toolsfor industrial-scale applications. The main aim of this research is to determine ... -
Optimal control approach for establishing wMelPop wolbachia infection among wild aedes aegypti populations
(Springer Verlag, 2018-02-10)Wolbachia-based biocontrol has recently emerged as a potential method for prevention and control of dengue and other vector-borne diseases. Major vector species, such as Aedes aegypti females, when deliberately infected ... -
Optimal control approach to dengue reduction and prevention in Cali, Colombia
(John Wiley and Sons Ltd, 2016-05-27)The aim of this paper is to propose optimal strategies for dengue reduction and prevention in Cali, Colombia. For this purpose, we consider two variants of a simple dengue transmission model, epidemic and endemic, each of ... -
Optimal control for a discrete time influenza model
(Springer, 2014)We formulated a discrete time model in order to study optimal control strategies for a single influenza outbreak. In our model, we divided the population into four classes: susceptible, infectious, treated, and recovered ... -
Optimal control for enhancement of wolbachia frequency among aedes aegypti females
(International Electronic Journal of Pure and Applied Mathematics, IJPAM, 2017-01-27)In this paper, we propose and thoroughly analyze the ODE model that describes the competition between wild Aedes aegypti female mosquitoes and those carrying Wolbachia bacterial symbiont in the same locality. Using this ... -
Optimal control of dengue epidemic outbreaks under limited resources
(Wiley, 2020-02)In this paper, we reflect upon control intervention practices habitually exerted by healthcare authorities in tropical areas that suffer from incidental outbreaks of dengue fever, in particular, the city of Cali, Colombia. ... -
Optimal operation of grid-connected microgrids with photovoltaic generation and storage
(2021)Un motivador clave para un despliegue más amplio de microrredes (pequeñas redes eléctricas con generación distribuida conectada que operan conectadas a niveles de baja y media tensión o en modo aislado) es lograr la ... -
Optimización con el criterio de mínima generación de entropía de un ciclo Brayton no endorreversible con recuperación externa
(2010)In order to be able to design better and more efficient systems, this article contributes to the development of the Brayton cycle including multiple internal and external irreversibilities, with external energy recovery ... -
Optimización de la resistencia a compresión usando un diseño de mezcla de vértices extremos, en concretos ternarios basados en residuo de mampostería y cal hidratada
(Universidad EIA, Envigado, Colombia, 2019)The search for alternative materials that partially substitute Portland cement is important because of the environmental problems that this presents in its production, hence the need to investigate the use of ternary ... -
Optimización de la resistencia mecánica de cementos binarios MK/GBFS activados alcalinamente por Metodología de Superficie de Respuesta
(Universidad EAFIT, 201401)The present article shows the compressive strength modeling and optimization for a non-conventional binder free of clinker, which was produced by the alkali activation of a binary mixture of metakaolin (MK) and a granulated ... -
Optimización de soldadura por fricción-agitación de la aleación de aluminio aa 6261-t5 mediante aplicación de metodología de superficie de respuesta
(Revista Latinoamericana de Metalurgia y Materiales, 2013-02)This article reports the results of applying the response surface methodology to evaluate the tensile strength in joints obtained by the process of friction-stir welding (SFA), depending on the speed of rotation of the ...
