RiuNet UPV Home
:
Browsing per Sponsorship

Search RiuNet

Browse

All of RiuNet

My Account

RiuNet Help

Admin. UPV

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

Now showing items 1-20 of 46

A study of some fundamental physicochemical variables on the morphology of mesoporous silica nanoparticles MCM-41 type

Beltrán-Osuna, A.A.; Gómez Ribelles, José Luís; Perilla-Perilla, Jairo Ernesto (Springer-Verlag, 2017)

[EN] All variables affecting the morphology of mesoporous silica nanoparticles (MSN) should be carefully analyzed in order to truly tailored design their mesoporous structure according to their final use. Although complete ...
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 ...
Análisis de sentimientos a nivel de aspecto usando ontologías y aprendizaje automático

Carlos Henríquez; Pla Santamaría, Ferran; Hurtado Oliver, Lluis Felip; Jaime Guzmán (Sociedad Española para el Procesamiento del Lenguaje Natural, 2017)

[EN] In this paper, we present an aspect-based sentiment analysis system that allows to automatically extract the characteristics of an opinion and to determine their associated polarity. The proposed system is based on a ...
Análisis dinámico del confort en edificios con estrategias de control adaptativo en modos deslizantes

Florez Montes, Frank (Universitat Politècnica de València, 2020-11-02)

[ES] En esta tesis de doctorado se utiliza el modelado matemático de zonas térmicas para evaluar la capacidad del control en modos deslizantes, para regular la temperatura interna de un caso de estudio. Se utiliza la técnica ...
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 ...
Cerium oxide as catalyst for the ketonization of aldehydes: Mechanistic insights and a convenient way to alkanes without consumption of external hydrogen

Orozco-Arboleda, Lina Marcela; Renz, Michael; Corma Canós, Avelino (The Royal Society of Chemistry, 2017)

[EN] The ketonization of aldehydes joins two molecules, with n carbon atoms each, to a ketone with 2n 1 carbon atoms. When employing cerium oxide as catalyst with nano-sized crystals (<15 nm) the ketone can be obtained ...
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 ...
Correlation among fecal indicator bacteria and physicochemical parameters with the presence of Helicobacter pylori DNA in raw and drinking water from Bogota, Colombia

Vesga, Fidson Juarismy; Moreno Trigos, Mª Yolanda; Ferrús Pérez, Mª Antonia; Ledesma-Gaitan, Lina María; Campos, Claudia; Trespalacios, Alba Alicia (Wiley, 2019-06)

[EN] BackgroundThe quality of raw and drinking water is a matter of considerable concern due to the possibility of fecal contamination. To assess the quality and public health risk of different types of water, the fecal ...
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 ...
Delay causes in road infrastructure projects in developing countries

Mejía, Guillermo; Sánchez, Omar; Castañeda, Karen; Pellicer, Eugenio (Pontificia Uversidad Católica de Chile. Escuela de Construcción Civil, 2020-09)

[EN] Project delays adversely affect road infrastructure development in developing countries. Unfavorable consequences of project delays involve cost overrun, contractual disputes, arbitration, and quality non-conformities. ...