A5080564684- Soil and Unsaturated Flow
- Groundwater flow and contamination studies
- Landslides and related hazards
- Finite Group Theory Research
- Algebraic structures and combinatorial models
- Soil Moisture and Remote Sensing
- Dam Engineering and Safety
- Coding theory and cryptography
- Fire effects on ecosystems
- Hydrology and Watershed Management Studies
- Landfill Environmental Impact Studies
- Algebraic Geometry and Number Theory
- Advanced Algebra and Geometry
- Homotopy and Cohomology in Algebraic Topology
- Urban Heat Island Mitigation
- Plant Water Relations and Carbon Dynamics
- Concrete and Cement Materials Research
- Rings, Modules, and Algebras
- Geotechnical Engineering and Soil Stabilization
- Urban Stormwater Management Solutions
- Irrigation Practices and Water Management
- Innovations in Concrete and Construction Materials
- Advanced Topics in Algebra
- Soil erosion and sediment transport
- Glass properties and applications
Université Grenoble Alpes
2024
Munzur University
2014-2024
Institut des Géosciences de l'Environnement
2024
Institut de Recherche pour le Développement
2024
Centre National de la Recherche Scientifique
2024
Institut polytechnique de Grenoble
2024
Bilkent University
2023-2024
Laboratoire Amiénois de Mathématique Fondamentale et Appliquée
2022
Université de Picardie Jules Verne
2022
University of California, Santa Cruz
2017-2021
Newer urban soils, frequently composed of several types anthropogenic materials, may contain basic oxygen furnace (BOF) slag, which is a steel industry byproduct and considered potential alternative material for road construction. An understanding the flow solute transfer processes through soils thus requires hydraulic characterization these materials. The BEST (Beerkan Estimation Soil Transfer Parameters) algorithm serves to estimate full set unsaturated soil properties by means conducting...
In the vadose zone, preferential flow and transport are much more common than uniform water solute transport. recent decades, several models have been developed for physical nonequilibrium Among these models, dual-permeability approach is an interesting tool conceptualization modeling of flow. However, this has mainly studied from a numerical point view. study, we new analytical model infiltration into soils. The based on originally proposed single-permeability relies assumption that...
Abstract. Sorptivity is one of the most important parameters for quantification water infiltration into soils. Parlange (1975) proposed a specific formulation to derive sorptivity as function soil retention and hydraulic conductivity functions, well initial final contents. However, this requires integration involving diffusivity, which may be undefined or present numerical difficulties that cause misestimations. In study, we propose mixed scales splits integrals two parts: first term...
Basic oxygen furnace (BOF) slag is considered as a potential alternative construction material and used here on an experimental plot to accurately quantify the risk of pollutant release. Since release depends flow, this initially requires characterizing BOF hydraulic properties. These were monitored estimated at scale by carrying out water infiltration experiments inverse numerical modeling. Monitoring showed that studied crusted surface result weathering processes. Numerical inversion...
Green roofs are promising urban management tools from the standpoint of both rainwater and microclimatology. They considered as a storm water mitigation technique may also favour evapotranspiration fluxes, which can be beneficial for comfort during summer periods. In France, however, retention performance green remains unknown, published values often unsuitable. Six experimental roofs, including two thicknesses growing media, three types vegetation cover bare surfaces, were monitored years...
Water-repellent soils usually experience water flow impedance during the early stage of a wetting process followed by progressive increase infiltration rate. Current models are not formulated to describe this peculiar process. Similarly, simplified methods soil hydraulic characterization (e.g., BEST) equipped handle water-repellent soils. Here, we present an adaptation BEST method, named BEST-WR, for at any water-repellency. We modified Haverkamp explicit transient model, included in...
Abstract. Sorptivity is a parameter of primary importance in the study unsaturated flow soils. This hydraulic required to model water infiltration into vertical soil profiles. can be directly estimated from functions (water retention and conductivity curves), using integral formulation Parlange (1975). However, calculating sorptivity this manner requires prior determination diffusivity its numerical integration between initial final saturation degrees, which may difficult some situations...
Abstract Estimating of soil sorptivity () and saturated hydraulic conductivity parameters by field infiltration tests are widespread due to the ease experimental protocol data treatment. The analytical equation proposed Haverkamp et al. (1994) allows modelling cumulative process, from which can be estimated. This model depends on both initial final values conductivity, sorptivity, volumetric water content increase two constants, so‐called parameters. However, reduce number unknown variables...
Modeling infiltration in water-repellent soils is difficult, as the underlying processes remain poorly quantified. However, recent work has adapted Beerkan Soil Transfer Parameter (BEST) algorithm to include an exponential correction term for characterizing these types of soils. The original BEST-WR (WR = Water Repellent) method used a two-term approximate expansion Haverkamp quasi-exact implicit model. can have considerable inaccuracy, particularly time and soil water repellency increase....
The increasing global urban sprawl requires large amounts of materials, putting huge pressure on numerous natural resources. In particular, vast quantities soils are used to create infrastructures or green spaces associated with new developments. Alternative solutions aimed at alleviating soil consumption thus being encouraged. Creating by recycling waste from industrial and construction activities is feasible, but apart their support function the resulting technosols should also be able...
Let k be an algebraically closed field of characteristic p > 0, let R a commutative ring and ކ 0. We introduce the category F pp stable diagonal p-permutation functors over R. prove that is semisimple give parametrization its simple objects in terms functors.We also notion functorial equivalence between blocks finite groups.We if G group b block idempotent kG with abelian defect D Frobenius inertial quotient E, then there exists pairs (G, b) ( ⋊ 1).
We give sufficient conditions on $p$-blocks of $p$-nilpotent groups over $\mathbb{F}_p$ to be splendidly Rickard equivalent and $p$-permutation their Brauer correspondents. The paper also contains Galois descent results modules equivalences that hold for arbitrary groups.
Abstract Thermal and microstructural characterization investigations of (1 ‐x ) GeO 2 ‐ x V O 5 (x=0.10, 0.30, 0.42 0.60 in molar ratio) glasses were carried out using differential thermal analysis (DTA), X‐ray diffractometry (XRD) scanning electron microscopy (SEM) techniques. Effects heating rate vanadium content on the glass transition, crystallization melting temperature investigated. XRD results have indicated that α‐GeO , β‐GeO crystal phases formed when samples annealed above peak...
Let $\mathbb{F}$ be an algebraically closed field of characteristic zero. Recently, we proved that isotypic blocks are functorially equivalent over $\mathbb{F}$. In this article provide example which not perfectly isometric.
The comprehension of hydrological processes inherent in the water cycle and its constituents is paramount significance when formulating adaptation strategies to address climate global changes. Sahel region serves a crucial role as buffer zone between arid desert more verdant precipitation-laden areas Senegal. savanna comprises dynamic amalgamation woody perennials intermixed with agricultural crops pastures. sustained vitality this ecosystem hinges upon sustainable agriculture, mandating...
The heterogeneous distribution of water-repellent materials at the soil surface causes a phenomenon known as fractional wettability. This condition frequently triggers destabilization wetting front during water infiltration, resulting in formation fingered bypass flow. However, few analytical tools exist to understand and model this behavior. Moreover, existing infiltration models fail fit certain curves that experimental data. For these reasons, we introduce novel simulate under wettable...
ABSTRACT BEST (Beerkan Estimation of Soil Transfer parameters) methods soil hydraulic characterisation are widely applied for estimating sorptivity, S , and saturated conductivity, K s . Calculating these properties requires choosing the β γ parameters Haverkamp infiltration model. These can be obtained from numerically simulated three‐dimensional (3D) runs reaching steady‐state. This investigation tested dependence estimated on algorithm steady‐state selection using 3D cumulative...