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Browsing per Sponsorship "Departamento Administrativo de Ciencia, Tecnología e Innovación, Colombia"

Now showing items 1-20 of 33

A theoretical study on NHC-catalysed enantioselective cycloaddition of ketenes and 3-aroylcoumarins: mechanism and enantioselectivity

Zaragoza, Ramón J.; Aurell, Maria J.; González-Cardenete, Miguel A (The Royal Society of Chemistry, 2018)

[EN] The NHC-catalysed enantioselective cycloaddition of ketenes to 3-aroylcoumarins to yield dihydrocoumarin-fused dihydropyranones has been investigated using DFT methods at the B3LYP/6-31G* and MPWB1K/6-311G** computational ...
Aplicación de la teoría de robots manipuladores a la biomecánica del brazo humano

Rodríguez, Carlos F.; Botero, Juan C.; Quintero, Hugo (Universitat Politècnica de València, 2007-11-07)

[ES] Este artículo presenta la aplicación de un conjunto de técnicas propias de la teoría de los robots manipuladores al estudio del movimiento del brazo humano. Para ello el brazo humano se modela como un robot manipulador ...
Argumentation-based hybrid recommender system for recommending learning objects

Rodríguez, Paula; Heras Barberá, Stella María; Palanca Cámara, Javier; Duque, Néstor; Julian Inglada, Vicente Javier (Springer, 2016-04-17)

Recommender Systems aim to provide users with search results close to their needs, making predictions of their preferences. In virtual learning environments, Educational Recommender Systems deliver learning objects ...
Arquitectura Basada en Roles Aplicada en Equipos de Fútbol de Robots con Control Centralizado

Guarnizo Marín, José Guillermo; Mellado Arteche, Martín (Elsevier España, 2016)

[EN] Borrar Robot soccer offers an adequate domain in order to design and validate architectures for robot-coordination. One classification refers to centralized architectures, which correspond to robot soccer environments ...
Aspectos sobre la Variabilidad Temporal y Dispersión en Frecuencia del Canal Radio para Comunicaciones Vehiculares

Fernández González, Herman Antonio; Balaguer Andrés, David; Part-Escriva, MC; Reig, Juan; Rubio Arjona, Lorenzo (Universidad Carlos III de Madrid, 2011-09-06)

[EN] Channel variations over time and the multipath propagation cause that the received signal suffers both time and frequency-selectivity. In vehicular communications, the movement of both the transmitter and receiver ...
Atributos Relevantes para el Diagnóstico Automático de Eventos de Tensión en Redes de Distribución de Energía Eléctrica

Barrera Núñez, Víctor; Velandia, Ronald; Hernández, Fredy; Meléndez, Joaquim; Vargas, Hermann (Universitat Politècnica de València, 2013-01-13)

[ES] En este trabajo se aborda el diagnóstico de eventos o perturbaciones de tensión registradas en subestaciones de distribución. La aparición de dichos eventos se debe a causas diversas que van desde faltas en la red, ...
Caracterizacion experimental en banda estrecha del canal radio Vehicular-to-Vehicular (V2V) a 5.9 GHz

Campuzano Candel, Andrés José; Fernandez, Hernán; Balaguer Andrés, David; Rodrigo-Peñarrocha, Vicent Miquel; Reig, Juan; Rubio Arjona, Lorenzo (Universidad Miguel Hernández de Elche, 2012-09-12)

[EN] Vehicular-to-vehicular (V2V) communications are receiving considerable attention due to the introduction of the intelligent transportation system (ITS) concept. To design, evaluate and optimize ITS applications ...
Caracterización de las pérdidas de propagación en escenarios vehiculares bajo condiciones LOS y NLOS a 700 MHz y 5.9 GHz

Fernández González, Herman Antonio; Rodrigo Peñarrocha, Vicent Miquel; Reig, Juan; Rubio Arjona, Lorenzo (2013-09-11)

Vehicular-to-vehicular (V2V) communications are receiving considerable attention due to the introduction of the intelligent transportation system (ITS) concept, enabling smart and intelligent driving technologies and ...
Cenizas del tamo de arroz como substituto del feldespato en la fabricación de cerámica blanca

Guzmán, Álvaro; Delvasto, Silvio; Sánchez, Enrique; Amigó Borrás, Vicente (CSIC, 2013)

[EN] The substitution of raw materials for processing high energy consumption materials by agricultural and agro-industrial wastes causes a positive impacts on the environment preservation. One of these residues is rice ...
Comparison between the finite differences, finite volume and finite element methods for the modelling of convective drying of fruit slices

Castro, Adriana; Mayorga, Edgar; Moreno, Fabian (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] Three numerical methods, finite differences, finite volume and finite element, were compared to know their convenience in the simulation of convective drying of fruit slices. The mathematical treatment, the stability, ...
Concreto autocompactante con materiales cementicios suplementarios de Colombia

Silva Urrego, Yimmy; Delvasto Arjona, Silvio (Editorial Universitat Politècnica de València, 2018-03-06)

[ES] El concreto autocompactante (CAC) es un tipo de hormigón o concreto especial, que por sus características reológicas es considerado uno de los grandes desarrollos tecnológicos en la industria del concreto, con un ...
Considerations about quality in model-driven engineering

Giraldo-Velásquez, Faber Danilo; España Cubillo, Sergio; Pastor López, Oscar; Giraldo, William J. (Springer Verlag (Germany), 2016-12-19)

The virtue of quality is not itself a subject; it depends on a subject. In the software engineering field, quality means good software products that meet customer expectations, constraints, and requirements. Despite the ...
Controlador LQR y SMC Aplicado a Plataformas Pendulares

Arévalo-Castiblanco, Miguel F.; Rodriguez-Garavito, C. H.; Patiño-Forero, Álvaro A.; Salazar-Cáceres, José F. (Universitat Politècnica de València, 2018-09-24)

[EN] A pendular platform is a robotic structure commonly used in the design of controllers given its nonlinear dynamics; This work presents the modeling, design and implementation of an optimal LQR controller and a Sliding ...
Cyclic behavior of ultra-high performance fiber reinforced concrete beam-column joint

Sarmiento, Patricia A.; Torres Górriz, Benjamín; Ruiz, Daniel M.; Alvarado Vargas, Yezid Alexander; Gasch, Isabel; Machuca, Andrés F. (John Wiley & Sons, 2019)

[EN] Ultra-high performance fiber reinforced concrete (UHPFRC) is a unique class of fiber-reinforced concrete featuring ultra-high compressive strength and ductil e tensile strain hardening behavior, accompanied by multiple ...
Detection of Helicobacter pylori in drinking water treatment plants in Bogotá, Colombia, using cultural and molecular techniques

Vesga-Pérez, Fidson Juarismy; Moreno Trigos, Mª Yolanda; Ferrús Pérez, Mª Antonia; Campos Pinilla, Claudia; Trespalacios Rangel, Alba Alicia (Elsevier, 2018-05)

[EN] Helicobacter pylori is one of the most common causes of chronic bacterial infection in humans, and a predisposing factor for peptic ulcer and gastric cancer. The infection has been consistently associated with lack ...
Diseño disipativo de observadores para sistemas no lineales discontinuos o multivaluados

Osorio, M.; Moreno, J. A. (Universitat Politècnica de València, 2008-01-24)

[ES] En este artículo se describe la aplicación, a sistemas discontinuos o multivaluados, de una metodología de diseño de observadores basada en la disipatividad, por medio del uso de la teoría de inclusiones diferenciales ...
Diseño Económico-Estadístico de Cartas con Parámetros Variables Totalmente Adaptativas en Presencia de Datos Autocorrelacionados

Peñabaena Niebles, Rita; Oviedo Trespalacios, Óscar; Ramírez, Katherine; Morón, Melissa (Elsevier, 2014-04-13)

[ES] Como consecuencia de la automatización industrial, la recolección de datos en los procesos productivos puede realizarse de una forma más fácil y rápida, lo cual permite contar con mayor cantidad de información para ...
Early warning system for detection of urban pluvial flooding hazard levels in an ungauged basin

Acosta-Coll, Melisa; Ballester Merelo, Francisco José; Martínez-Peiró, Marcos Antonio (Springer-Verlag, 2018)

[EN] Prolonged and high intensity rainfall often saturates urban drainage systems and generates urban pluvial flooding, resulting in hazardous flash floods. The city most affected by urban flooding in Colombia (South ...
Evaluating the quality of a set of modelling languages used in combination: A method and a tool

Giraldo-Velásquez, Faber Danilo; España Cubillo, Sergio; Giraldo, William J.; Pastor López, Oscar (Elsevier, 2018)

[EN] Modelling languages have proved to be an effective tool to specify and analyse various perspectives of enterprises and information systems. In addition to modelling language designs, works on model quality and modelling ...
Integración de REDs en Redes AC: una Familia de Controladores Basados en Pasividad

Montoya, Oscar Danilo; Gil-González, Walter; Avila-Becerril, Sofía; Garces, Alejandro; Espinosa-Pérez, Gerardo (Universitat Politècnica de València, 2019-03-20)

[EN] This paper presents the design and application of passivity–based control theory for distributed energy resources (DERs) integration through voltage source converters (VSC) in ac single–phase grids. The Hamiltonian ...