Browsing Xestión Sostible dos Recursos Hídricos e do Chan (AQUATERRA) by Issue Date
Now showing items 1-20 of 57
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Normalized sensitivities and parameter identifiability of in situ diffusion experiments on Callovo–Oxfordian clay at Bure site
(Elsevier, 2008)Diffusion of inert and reactive tracers (DIR) is an experimental program performed by ANDRA at Bure underground research laboratory in Meuse/Haute Marne (France) to characterize diffusion and retention of radionuclides in ... -
The DI-B in situ diffusion experiment at Mont Terri: Results and modeling
(Elsevier, 2008)[Abstract:] The diffusion experiment “DI-B” aimed at studying the transport and retention properties of selected non radioactive tracers in the Opalinus Clay (shaly facies) at the Mont Terri URL. Selected tracers were: 2H ... -
Analysis of the parameter identifiability of the in situ diffusion and retention (DR) experiments
(Elsevier, 2010)[Abstract:] In situ diffusion experiments are performed at underground research laboratories to overcome the limitations of laboratory diffusion experiments. The diffusion and retention (DR) experiments are long-term, ... -
In situ diffusion experiments: Effect of water sampling on tracer concentrations and parameters
(Elsevier, 2010)[Abstract:] In situ diffusion experiments are performed at underground research laboratories (URL) in clay formations to overcome the limitations of laboratory diffusion experiments and investigate scale effects. Tracers ... -
Conceptual and numerical models of solute diffusion around a HLW repository in clay
(Elsevier, 2011)[Abstract:] Reactive transport models have been used to simulate solute diffusion, canister corrosion, interactions of the corrosion products with the bentonite and the long-term hydrochemical evolution of porewater ... -
A single-site reactive transport model of Cs+ for the in situ diffusion and retention (DR) experiment
(Springer, 2015)[Abstract:] In situ diffusion experiments are performed in underground research laboratories for understanding and quantifying radionuclide diffusion from underground radioactive waste repositories. The in situ diffusion ... -
Reactive transport modelling of the long-term interactions of corrosion products and compacted bentonite in a HLW repository in granite: Uncertainties and relevance for performance assessment
(Elsevier, 2016)[Abstract:] Here we present a long-term nonisothermal reactive transport model for the interactions of the corrosion products of a carbon-steel canister and the compacted bentonite of the engineered barrier of a high-level ... -
Long-term non-isothermal reactive transport model of compacted bentonite, concrete and corrosion products in a HLW repository in clay
(Elsevier, 2017)[Abstract:] Radioactive waste disposal in deep geological repositories envisages engineered barriers such as carbon-steel canisters, compacted bentonite and concrete liners. The stability and performance of the bentonite ... -
Obtención de un Modelo Dinámico para un Robot 3RRR Basado en Teoría de Screws
(Comité Español de Autonomática (CEA-IFAC), 2018)[Resumen] En este artículo se propone una nueva técnica para la obtención de un modelo dinámico de robots 3RRR a partir de un modelo cinemático basado en teoría de screws, la cual permite obtener la cinemática de un robot ... -
Coupled THCM model of a heating and hydration concrete-bentonite column test
(Elsevier, 2018)[Abstract:] Radioactive waste disposal in deep geological repositories in clay formations envisage a compacted bentonite engineered barrier and a concrete liner. The alkaline conditions caused by the degradation of concrete ... -
A revisited thermal, hydrodynamic, chemical and mechanical model of compacted bentonite for the entire duration of the FEBEX in situ test
(Elsevier, 2018)[Abstract:] The safety assessment of geological repositories for radioactive waste requires quantifying the geochemical evolution of the engineered clay barriers where thermal (T), hydrodynamic (H), mechanical (M) and ... -
Control del par en motores de corriente directa por control de modelo interno (IMC)
(3ciencias, 2019)[Resumen] El control del par para motores de corriente continua, motores de imán permanente y actuadores lineales tiene aplicación en áreas como robótica, mecatrónica y otros mecanismos. Se muestra el desarrollo teórico ... -
Variabilidad de δ13C y δ15N en suelo y hojarasca de cacao en El Oro, Ecuador
(Mexican Society of Soil Science, 2019-04-15)[Resumen] El cacao aporta niveles signif icativos de carbono (C) y nitrógeno(N) por las hojarascas; el cambio de manejo agronómico ocasiona variación en los contenidos de estos elementos en el suelo. El objetivo fue evaluar ... -
Estimation of Elemental Composition of Agricultural Soils From West Azerbaijan, Iran, Using Mid-Infrared Spectral Models
(Universidade Federal de Campina Grande, 2019-04-30)[Abstract] Characterizing the elemental composition provides useful information about the weathering degree of soils. In Miandoab County, Northern Iran, this characterization was missing, and thus the objectives of this ... -
Impact of pig slurry application on soil and water losses: comparison with a historical series
(Universidade Federal de Campina Grande, 2019-04-30)[Abstract] Water erosion in soil is influenced by several factors, including rain, relief, cover, and management and conservation practices. Also, erosion is affected by pig slurry (PS) applied to the soil as a fertilizer. ... -
Reforested soil under drip irrigation with treated wastewater from poultry slaughterhouse
(Universidade Federal de Campina Grande, 2019-04-30)[Abstract] The disposal of treated effluents on soil is the main final use of wastewater in Brazil. Although this practice can promote improvements of some soil attributes, there is a need for monitoring in order to ensure ... -
Path coefficient analysis, a different approach to identify soil quality indicators
(Universidade Federal de Campina Grande, 2019-06-04)[Abstract] Soil quality indicators related to water erosion reduction can assist with correct soil management. The objective of this research was to identify some variables that could be used as soil quality indicators ... -
Reactive transport modelling of a low-pH concrete / clay interface
(Elsevier, 2020)[Abstract:] Cement-based materials are key components in the barrier system and structural support of repositories for disposal of nuclear waste. As such, increased understanding of their long-term performance under ... -
Dynamic update of flow and transport parameters in reactive transport simulations of radioactive waste repositories
(Elsevier, 2020)[Abstract:] The changes in porosity caused by mineral dissolution/precipitation and the associated changes in flow, transport and chemical parameters of porous and fractured media are relevant for the geochemical time-evolution ... -
Pedotransfer function to estimate the soil structural “S” index and spatial variability in an oxisol within a livestock farming system
(Associação Brasileira de Engenharia Agrícola, 2020-02-17)[Abstract]: Various attributes are often required to build soil quality indicators. However, determining these attributes is time-consuming and requires several specific devices. Thus, it is desirable to develop indexes ...