Listar Dpto. Proyectos e Ingeniería Rural - Landa Ingeniaritza eta Proiektuak Saila por título
Mostrando ítems 53-72 de 88
-
Geometric locus associated with thriedra axonometric projections. Intrinsic curve associated with the ellipse generated
Gonzaga Vélez, Pedro
; Gimena Ramos, Faustino ; Gimena Ramos, Lázaro ; Goñi Garatea, Mikel (Springer, 2017)
Contribución a congreso / Biltzarrerako ekarpena 
In previous work on the axonometric perspective, the authors presented some graphic constructions that allowed a single and joint invariant description of the relations between an orthogonal axonometric system, its related ... -
Gully geometry: what are we measuring?
Casalí Sarasíbar, Javier ; Giménez Díaz, Rafael ; Campo-Bescós, Miguel (European Geosciences UnionCopernicus Publications, 2015)
Artículo / Artikulua
Much of the research on (ephemeral) gully erosion comprises the determination of the geometry of these eroded channels, especially their width and depth. This is not a simple task due to uncertainty generated by the wide ... -
Hallazgo de treintaiséis nuevas estelas de Navarra
Ukar Muruzábal, Jesús (Gobierno de Navarra. Institución Príncipe de Viana, 1993)
Artículo / Artikulua
El presente estudio describe el hallazgo de 31 nuevas estelas de Navarra. -
Hydrological signatures based on event runoff coefficients in rural catchments of the Iberian Peninsula
Taguas, Encarnación V.; Nadal-Romero, Estela; Ayuso, José L.; Casalí Sarasíbar, Javier ; Cid, Patricio; Dafonte, Jorge; Canatário-Duarte, Antonio; Ferreira, Carla S.S.; Giménez Díaz, Rafael ; Giráldez Cervera, Juan Vicente; Gómez-Macpherson, Helena; Gómez, Jose A.; González-Hidalgo, J. Carlos; Lana Renault, Noemí; Lucía, Ana; Mateos, Luciano; Pérez, Rafael; Rodríguez-Blanco, M. Luz; Schnabel, Susanne; Serrano-Muela, M. Pilar; Taboada-Castro, M. Mercedes; Taboada-Castro, M. Mercedes; Zabaleta, Ane (Wolters Kluwer, 2017)
Artículo / Artikulua
Hydrological signatures are indices that help to describe the behavior of catchments. These indices can also be used to transfer information from gauged to ungauged catchments. In this study, different approaches were ... -
Influence of surface roughness measurement scale on radar backscattering in different agricultural soils
Martínez de Aguirre Escobar, Alejandro ; Álvarez-Mozos, Jesús ; Lievens, Hans; Verhoest, Niko E. C. (IEEE, 2017)
Artículo / Artikulua
Soil surface roughness strongly affects the scattering of microwaves on the soil surface and determines the backscattering coefficient (σ 0 ) observed by radar sensors. Previous studies have shown important scale issues ... -
Influence of surface roughness sample size for C-band SAR backscatter applications on agricultural soils
Martínez de Aguirre Escobar, Alejandro ; Álvarez-Mozos, Jesús ; Lievens, Hans; Verhoest, Niko E. C.; Giménez Díaz, Rafael (IEEE, 2017)
Artículo / Artikulua
Soil surface roughness determines the backscatter coefficient observed by radar sensors. The objective of this letter was to determine the surface roughness sample size required in synthetic aperture radar applications and ... -
Influence of surface roughness spatial variability and temporal dynamics on the retrieval of soil moisture from SAR observations
Álvarez-Mozos, Jesús ; Verhoest, Niko E. C.; Larrañaga, Arantzazu ; Casalí Sarasíbar, Javier ; González de Audícana Amenábar, María (MDPI, 2009)
Artículo / Artikulua
Radar-based surface soil moisture retrieval has been subject of intense research during the last decades. However, several difficulties hamper the operational estimation of soil moisture based on currently available ... -
Magnesium oxide as alternative binder for unfired clay bricks manufacturing
Espuelas Zuazu, Sandra ; Omer, Joshua; Marcelino Sádaba, Sara ; Echeverría, Angel María ; Seco Meneses, Andrés (Elsevier, 2017)
Artículo / Artikulua
Replacement of fired bricks by unfired ones could be an effective way to reduce the building industryenvironmental footprint: Their manufacture not only requires less energy and natural resources but alsogenerates less waste. ... -
Mathematical models to describe the volumetric shrinkage rate of red beans during drying
Correa, P. C.; Resende, O.; Arazuri Garín, Silvia ; Jarén Ceballos, Carmen ; Oliveira, Gabriel H. H. de (Associação Brasileira de Engenharia Agrícola, 2011)
Artículo / Artikulua
The present study aimed to determine the volumetric shrinkage rate of bean (Phaseolus vulgaris L.) seeds during air-drying under different conditions of air, temperature and relative humidity, and to adjust several ... -
Metodología interna en la formación académica
Martínez Ilundáin, José Manuel (2014)
Tesis doctoral / Doktoretza tesia
Se define la metodología interna de la formación académica como un plan de investigación que permite mejorar el rendimiento académico de una forma continua y autónoma. Por tanto, dicha metodología permite al docente ... -
Monitoring water vapour with GNSS during a heavy rainfall event in the Spanish Mediterranean area
Priego, E.; Jones, J.; Porres, M. J.; Seco Meneses, Andrés (Taylor & Francis, 2017)
Artículo / Artikulua
The Spanish Mediterranean area is periodically affected by torrential rainfall events during autumn. In September 2012, one of these episodes took place with up to 50 mm of rain in a 1-hour period and with more than 300 ... -
Multi-criteria evaluation of topographic correction methods
Sola Torralba, Ion ; González de Audícana Amenábar, María ; Álvarez-Mozos, Jesús (Elsevier, 2016)
Artículo / Artikulua
In the last decades, several topographic correction methods (TOC) have been proposed, but there is not an agreement on the best method. Furthermore, different evaluation criteria have been used in the past, and there is ... -
A multi-year analysis of traffic accidents involving agricultural tractors
Arnal Atarés, Pedro; López Maestresalas, Ainara ; Arazuri Garín, Silvia ; Mangado Ederra, Jesús ; Jarén Ceballos, Carmen (AIDIC, 2017)
Artículo / Artikulua
The agricultural sector in Spain is responsible for a high rate of accidents every year, and many of them are traffic accidents. Tractors are a relatively rare sight on roads, meaning that the incidence of accidents involving ... -
Multitemporal evaluation of topographic correction algorithms using synthetic images
Sola Torralba, Ion ; Álvarez-Mozos, Jesús ; González de Audícana Amenábar, María ; Torres Escribano, José Luis (SPIE, 2012)
Contribución a congreso / Biltzarrerako ekarpena
Land cover classification and quantitative analysis of multispectral data in mountainous regions is considerably hampered by the influence of topography on the spectral response pattern. In the last years, different ... -
Near-infrared spectroscopy and hyperspectral imaging for non-destructive quality inspection of potatoes
López Maestresalas, Ainara (2016)
Tesis doctoral / Doktoretza tesia
La patata (Solanum tuberosum L.) es uno de los cultivos más importantes en el mundo, ocupando el quinto puesto en términos de producción. España es uno de los países europeos con mayor producción y consumo de estos tubérculos. ... -
Non-destructive detection of blackspot in potatoes by Vis-NIR and SWIR hyperspectral imaging
López Maestresalas, Ainara ; Keresztes, Janos C.; Goodarzi, Mohammad; Arazuri Garín, Silvia ; Jarén Ceballos, Carmen ; Saeys, Wouter (Elsevier, 2016)
Artículo / Artikulua
Blackspot is a subsurface potato damage resulting from impacts during harvesting. This type of bruising represents substantial economic losses every year. As the tubers do not show external symptoms, bruise detection in ... -
On the added value of quad-pol data in a multi-temporal crop classification framework based on RADARSAT-2 imagery
Larrañaga, Arantzazu; Álvarez-Mozos, Jesús (MDPI, 2016)
Artículo / Artikulua
Polarimetric SAR images are a rich data source for crop mapping. However, quad-pol sensors have some limitations due to their complexity, increased data rate, and reduced coverage and revisit time. The main objective of ... -
On the assimilation set-up of ASCAT soil moisture data for improving streamflow catchment simulation
Loizu Maeztu, Javier ; Massari, Christian; Álvarez-Mozos, Jesús ; Tarpanelli, Angelica; Brocca, Luca; Casalí Sarasíbar, Javier (Elsevier, 2018)
Artículo / Artikulua
Assimilation of remotely sensed surface soil moisture (SSM) data into hydrological catchment models has been identified as a means to improve stream flow simulations, but reported results vary markedly depending on the ... -
On the soil roughness parameterization problem in soil moisture retrieval of bare surfaces from synthetic aperture radar
Verhoest, Niko E. C.; Lievens, Hans; Wagner, Wolfgang; Álvarez-Mozos, Jesús ; Moran, M. Susan; Mattia, Francesco (MDPI, 2008)
Artículo / Artikulua
Synthetic Aperture Radar has shown its large potential for retrieving soil moisture maps at regional scales. However, since the backscattered signal is determined by several surface characteristics, the retrieval of soil ... -
Phytochemicals determination and classification in purple and red fleshed potato tubers by analytical methods and near infrared spectroscopy
Tierno, Roberto; López Maestresalas, Ainara ; Riga, Patrick; Arazuri Garín, Silvia ; Jarén Ceballos, Carmen ; Ruiz de Galarreta, José Ignacio (Wiley, 2016)
Artículo / Artikulua
BACKGROUND: Over the last two decades, the attractive colours and shapes of pigmented tubers and the increasing concern about the relationship between nutrition and health have contributed to the expansion of their ...
