Listar Dpto. Proyectos e Ingeniería Rural - Landa Ingeniaritza eta Proiektuak Saila por fecha de publicación
Mostrando ítems 21-40 de 88
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Pohlke theorem: demonstration and graphical solution
It is known that the axonometric defined by Pohlke, is geometrically known as a means of representing the figures of space using a cylindrical projec-tion and proportions. His theorem says that the three unit vectors ... -
Automatic detection of uprooted orchards based on orthophoto texture analysis
Permanent crops, such as olive groves, vineyards and fruit trees, are important in European agriculture because of their spatial and economic relevance. Agricultural geographical databases (AGDBs) are commonly used by ... -
Assessment of soil factors controlling ephemeral gully erosion on agricultural fields
The soil factor is crucial in controlling and properly modeling the initiation and development of ephemeral gullies (EGs). Usually, EG initiation has been related to various soil properties (i.e. sealing, critical shear ... -
Assessing soil properties controlling interrill erosion: an empirical approach under Mediterranean conditions
Soil erodibility is a complex phenomenon that comprises a number of different soil properties. However, most current (empirical) erodibility indices are based on only a few soil properties. A feasible soil characterization ... -
Analysis of the hydrological and erosive behavior of agrararian watersheds in Navarre (Spain) by experimentation and modelling
Es de general conocimiento que la actividad agraria causa un importante efecto en el medio ambiente. Se hace por tanto necesario conocer este efecto así como proponer medidas para su control. Para ello, la información ... -
Influence of surface roughness measurement scale on radar backscattering in different agricultural soils
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
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 ... -
Analysis of surface roughness in agricultural soils using in-situ measurements and remote sensing techniques
El término rugosidad superficial del suelo es utilizado para describir las variaciones de elevación de la superficie del suelo (micro-relieve). La rugosidad afecta diferentes procesos hidrológicos importantes como el ... -
Residual stresses with time-independent cyclic plasticity in finite element analysis of welded joints
Due to the intense concentration of heat in a reduced area when Gas Metal Arc Welding (GMAW) is used to join mechanical components, the regions near the weld bead are subjected to severe thermal cycles. Firstly, the region ... -
Geometric locus associated with thriedra axonometric projections. Intrinsic curve associated with the ellipse generated
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 ... -
Challenges in Life Cycle Assessment (LCA) of stabilised clay-based construction materials
The preference of clay-based materials for sustainable construction is well-established. The establishment ofsustainability credentials of emergent construction materials is very subjective, and most available tools are ... -
Non-destructive detection of blackspot in potatoes by Vis-NIR and SWIR hyperspectral imaging
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 ... -
Sulfate soils stabilization with magnesium-based binders
Sulfate soils' stabilization is a very interesting subject with technical, economic and environmental implications. The difficulty of their stabilization is due to the fact that the usual stabilizer additives are based ... -
Phytochemicals determination and classification in purple and red fleshed potato tubers by analytical methods and near infrared spectroscopy
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 ... -
Evaluation of TOPLATS on three Mediterranean catchments
Physically based hydrological models are complex tools that provide a complete description of the different processes occurring on a catchment. The TOPMODEL-based Land-Atmosphere Transfer Scheme (TOPLATS) simulates water ... -
Clasificación de cultivos a partir de observaciones de teledetección radar. Aplicación a zonas de secano y regadío de Navarra.
La teledetección consiste en adquirir a través de sensores de observación, información de un objeto concreto o un área. Una de las principales aplicaciones de la teledetección en el ámbito agrícola es la clasificación ... -
Estimated and real durability of unfired clay bricks: Determining factorsand representativeness of the laboratory tests
This paper presents an analysis of the representativeness of the main laboratory tests and the real dura-bility of earth-based construction materials. For this study, a natural marl soil, mixed with different per-centages ... -
Demonstrating correspondence between decision-support models and dynamics of real-world environmental systems
There are increasing calls to audit decision-support models used for environmental policy to ensure that they correspond with the reality facing policy makers. Modelers can establish correspondence by providing empirical ... -
Evaluation of 2D models for the prediction of surface depression storage using realistic reference values
Depression storage (DS) is the maximum storage of precipitation and runoff in the soil surface at a given slope. The DS is determined by soil roughness that in agricultural soils is largely affected by tillage. The direct ... -
Desarrollo de productos avanzados para la misión SEOSAT/Ingenio
SEOSAT/Ingenio es la futura misión española de observación de la Tierra en el óptico en alta resolución espacial. Mientras que los productos de imagen a Nivel 1, radiancias geo-referenciadas a nivel de sensor, se encuentran ...