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Listar por palabra clave "Heterogeneity"

Mostrando ítems 1-20 de 29

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3D acoustic modelling of dissipative silencers with nonhomogeneous properties and mean flow

Sánchez Orgaz, Eva María; Denia, Francisco David; Martínez-Casas, José; Baeza, Luis (Hindawi Publishing Corporation, 2014-06)

A finite element approach is proposed for the acoustic analysis of automotive silencers including a perforated duct with uniform axial mean flow and an outer chamber with heterogeneous absorbent material. This material can ...
Assessing hydromorphological and floristic patterns along a regulated Mediterranean river: The Serpis River (Spain)

Garófano-Gómez, Virginia; Martinez-Capel, Francisco; Peredo Parada, Matías Manuel; Olaya Marín, Esther Julia; Muñoz Mas, Rafael; Soares Costa, Rui Manuel; Pinar Arenas, José Luis (Asociación Ibérica de Limnología, 2011)

[EN] In the European context, several methodologies have been developed to assess the ecological status and, specifically, the hydromorphological status of running surface waters. Although these methodologies have been ...
Breeding dispersal strategies following reproductive failure explain low apparent survival of immigrant Temminck's stints

Pakanen, Veli-Matti; Hilden, Olavi; Ronka, Antti; Belda Pérez, Eduardo Jorge; Luukkonen, Aappo; Kvist, Laura; Koivula, Kari (Nordic Ecological Society, 2011-04)

In some animal populations, immigrants have lower survival than philopatric individuals. Costs of dispersal or low phenotypic quality of dispersers may explain the pattern. However, apparent adult survival estimates, which ...
Constraints on persistent activity in a biologically detailed network model of the prefrontal cortex with heterogeneities

Hass, Joachim; Ardid, S.; Sherfey, Jason; Kopell, Nancy (Elsevier, 2022-08)

[EN] Persistent activity, the maintenance of neural activation over short periods of time in cortical networks, is widely thought to underlie the cognitive function of working memory. A large body of modeling studies has ...
Econometric analysis of individuals’ preference heterogeneity: An application to the economic evaluation of uphill landscape

Colombo, Sergio; Hanley, Nick (Universitat Politècnica de València, 2011-10-14)

[EN] The need to account for respondents’ preference heterogeneity in stated choice models has motivated researchers to apply random parameter logit and latent class models. In this paper we compare these three alternative ...
Efficient conceptual model for simulating the effect of aquifer heterogeneity on natural groundwater discharge to rivers

Pulido Velázquez, David; Llopis Albert, Carlos; Peña Haro, Salvador; Pulido Velázquez, Manuel Augusto (Elsevier, 2011)

[EN] When linearity can be assumed (linear response of heads to stresses), stream-aquifer flow exchange can be simulated as the drainage of a number of independent linear reservoirs. This conceptual model, which can be ...
Estudio de la heterogeneidad regulatoria en cáncer y sus implicaciones en la medicina personalizada

Marín Falco, Matías (Universitat Politècnica de València, 2021-03-08)

[ES] El cáncer es la segunda causa de muerte en el mundo y se caracteriza principalmente por la proliferación descontrolada de las células que forman el tumor. Aunque el desarrollo de un tumor es posible debido a ciertos ...
Finite element based acoustic analysis of dissipative silencers with high temperature and thermal-induced heterogeneity

Denia Guzmán, Francisco David; Sánchez Orgaz, Eva María; Martínez Casas, José; Kirby, Ray (Elsevier, 2015-05-15)

A mixed finite element model has been derived for the acoustic analysis of perforated dissipative silencers including several effects simultaneously: (1) High temperature and thermal gradients in the central duct and the ...
Genetic redundancies enhance information transfer in noisy regulatory circuits

Rodrigo Tarrega, Guillermo; Poyatos, Juan F. (Public Library of Science, 2016-10)

[EN] Cellular decision making is based on regulatory circuits that associate signal thresholds to specific physiological actions. This transmission of information is subjected to molecular noise what can decrease its ...
Identifying Potential for Improvement in Computer Science Degree Programs from the Student Perspective

Böttcher, Axel; Thurner, Veronika; Hammer, Sabine (Editorial Universitat Politècnica de València, 2024-06-20)

[EN] We want to pick up students where they are – but we don't even know where they are since we may not know enough about the status of our students and their needs and wishes. In this paper we share experiences on a ...
Influencia de la heterogeneidad espacial de la conductividad hidráulica en modelos de agua subterránea

Carrasco Jocope, Arnold Jerson (Universitat Politècnica de València, 2021-07-01)

[EN] The management of water resources has been of great importance for several years, among which, special attention is being paid to groundwater, due to the amount of available resource and its sensitivity to natural ...
Inverse Methods in Hydrogeology: Evolution and Recent Trends

Zhou, Haiyan; Gómez-Hernández, J. Jaime; Li, Liangping (Elsevier, 2014-01)

[EN] Parameter identification is an essential step in constructing a groundwater model. The process of recognizing model parameter values by conditioning on observed data of the state variable is referred to as the inverse ...
Inverse Modelling and Medical Imaging Applied to Biomechanical Research

Llopis Albert, Carlos; Rubio Montoya, Francisco José; Merigó-Lindahl, José María; Valero Chuliá, Francisco José (Biomedical Research Network+, 2018-05-14)

[EN] The prediction of heterogeneous material properties in biomedical applications is becoming a major problem in cases with complex microstructures and multiphase materials. Several branches in medicine require accurate ...
Jointly mapping hydraulic conductivity and porosity by assimilating concentration data via ensemble Kalman filter

Li, Liangping; Zhou, Haiyan; Gómez-Hernández, J. Jaime; Hendricks-Franssen, Hendrikus Johannes (Elsevier, 2012-03-27)

[EN] Real-time data from on-line sensors offer the possibility to update environmental simulation models in real-time. Information from on-line sensors concerning contaminant concentrations in groundwater allow for the ...
La gestión de la escuela inclusiva y su intervención institucional: tensiones entre la pertinencia de sus actuaciones y la necesidad de un nuevo paradigma epistémico

Ocampo González, Aldo Ariel (Universitat Politècnica de València, 2015-10-19)

[EN] The following article presents a theoretical/ methodological analysis regarding the conditions and/or cultural, organizational and ideological institutional processes that claim opportunely and appropriately, the ...
Mesohabitat heterogeneity in four mediterranean streams of the Jucar river basin (Eastern Spain)

Alcaraz-Hernández, Juan Diego; Martinez-Capel, Francisco; Peredo Parada, Matías Manuel; Hernández Mascarell, Aina Berta (Asociación Ibérica de Limnología, 2011)

[EN] The hydromorphological units or mesohabitats of the headwaters of four Mediterranean streams were studied by classifying them according to their length, width, average and maximum depth, percentage of substrate and ...
Meta-analysis of genetic parameters for economic traits in rabbit using a random-effects model

Lima, Nandrya Hayne Santos; D'suze, Elizangela Zayana Lima; Paiva, Denise de Assis; Lima, Nilsa Duarte da Silva; Gomes, Thalles Ribeiro; Paiva, José Teodoro de (Universitat Politècnica de València, 2024-09-30)

[EN] The genetic improvement of rabbits helps increase their productivity and, consequently, increase the supply of animal protein for human consumption. The aim of this study was to perform a meta-analysis of genetic ...
Modelización y simulación de corrientes iónicas y potencial de acción en células endocárdicas, midmiocárdicas y epicárdicas de perro

Romero Rodríguez, Joaquín (Universitat Politècnica de València, 2013-02-21)

[ES] En la actualidad, los modelos matemáticos del comportamiento eléctrico de los miocitos de corazón de perro no contemplan las diferencias electrofisiológicas del potencial de acción que existen entre los miocitos ...
Modelling parking behaviour considering heterogeneity

Antolin San Martin, Gonzalo; Ibeas Portilla, Angel; Alonso Oreña, Borja; dell´Olio, Luigi (Editorial Universitat Politècnica de València, 2016-06-01)

[EN] Most of motorized trips in cities of middle and small size are made in public transport and mainly in private vehicle, this has caused a saturation in parking systems of the cities, causing important problems to ...
Potential limitations in COVID-19 machine learning due to data source variability: A case study in the nCov2019 dataset

Sáez Silvestre, Carlos; Romero, Nekane; Conejero, J. Alberto; Garcia-Gomez, Juan M (Oxford University Press, 2021-02)

[EN] Objective: The lack of representative coronavirus disease 2019 (COVID-19) data is a bottleneck for reliable and generalizable machine learning. Data sharing is insufficient without data quality, in which source ...