- Groundwater flow and contamination studies
- Reservoir Engineering and Simulation Methods
- Soil Geostatistics and Mapping
- Geological Modeling and Analysis
- Karst Systems and Hydrogeology
- Hydrology and Watershed Management Studies
- Geophysical and Geoelectrical Methods
- Geochemistry and Geologic Mapping
- Groundwater and Isotope Geochemistry
- Hydraulic Fracturing and Reservoir Analysis
- Landslides and related hazards
- Seismic Imaging and Inversion Techniques
- Soil and Unsaturated Flow
- Laser Design and Applications
- Sperm and Testicular Function
- Laser-Matter Interactions and Applications
- Image Processing and 3D Reconstruction
- Rock Mechanics and Modeling
- Hydrocarbon exploration and reservoir analysis
- Reproductive Biology and Fertility
- Geological formations and processes
- Advanced Mathematical Modeling in Engineering
- Grouting, Rheology, and Soil Mechanics
- Geophysical Methods and Applications
- Groundwater and Watershed Analysis
University of Neuchâtel
2016-2025
Thales (France)
2024
University of Oslo
2021-2023
École Normale Supérieure de Lyon
2019
Centre National de la Recherche Scientifique
1993-2007
Weatherford College
2007
Bureau de Recherches Géologiques et Minières
2007
Université de Lorraine
2003-2007
Lawrence Livermore National Laboratory
1976-2006
ETH Zurich
2003-2004
Multiple‐point geostatistics is a general statistical framework to model spatial fields displaying wide range of complex structures. In particular, it allows controlling connectivity patterns that have critical importance for groundwater flow and transport problems. This approach involves considering data events (spatial arrangements values) derived from training image (TI). All found in the TI are usually stored database, which used retrieve conditional probabilities simulation. Instead, we...
The reactive oxygen species, hydrogen peroxide (H2O2) and superoxide anion (O2o-), were generated with a xanthine-xanthine oxidase system their effect on human sperm function was studied. action of species selected spermatozoa resulted in decreased capacity for ionophore-induced acrosome reaction, decrease motility, an increase the concentration lipid hydroperoxides loss membrane polyunsaturated fatty acids. H2O2 key intermediate deleterious effects exerted by xanthine oxidase. Among these...
Abstract River‐groundwater interactions are at the core of a wide range major contemporary challenges, including provision high‐quality drinking water in sufficient quantities, loss biodiversity river ecosystems, or management environmental flow regimes. This paper reviews state art approaches characterizing and modeling groundwater interactions. Our review covers approaches, remote sensing to characterize streambed, emerging methods measure exchange fluxes between rivers groundwater,...
A complex process of maturation called capacitation is an essential step for spermatozoa to fertilize oocytes. Recent studies have shown that reactive oxygen species (ROS) can enhance the human and sperm-zona interaction. We investigated whether hydrogen peroxide (H2O2) could trigger acrosome reaction. The addition catalase, a specific H2O2 scavenger, at beginning decreased levels both hyperactivation induced-acrosome reaction whereas catalase added 15 min before induction by calcium...
Self-focusing effects in large, high power laser amplifiers become manifest as small-scale beam instabilities and large-scale phase aberrations. Spatial filtering has been shown to control instabilities; spatial filters constitute appropriate lens pair elements for image relaying well. In this paper, is presented a technique preserving the transverse intensity profile of it propagates long distances through nonlinear elements. As consequence, amplifier apertures can be filled more...
A hyperon ( XI /sup -/ emitted in the interaction of a 1.5-Bev/c meson (K/sup -/) emulsion was noted to have been absorbed with production double hyperfragment. The ranges and angles involved these subsequent decay processes are given. Analysis ordinary hyperfragment (subsequently emitted) showed captured on light nucleus (C,N,0). Binding energies two DELTA 0/ hyperons were determined. /sub LAMBDA / Be/sup 10-11/ probably formed by capture carbon. (D.C.W.)
Measurements are often unable to uniquely characterize the subsurface at a desired modeling resolution. In particular, inverse problems involving characterization of hydraulic properties typically ill‐posed since they generally present more unknowns than data. Bayesian context, solutions such consist posterior ensemble models that fit data (up certain precision specified by likelihood function) and subset prior distribution. Two possible approaches for this problem Markov chain Monte Carlo...
The development of spatially continuous fields from sparse observing networks is an outstanding problem in the environmental and Earth sciences. Here we explore approach to produce discontinuous data that focuses on reconstructing gaps routinely present satellite‐based observations. To assess utility approach, use synthetic imagery derived a regional climate model southeastern Australia. Orbital tracks, scan geometry influences, atmospheric artifacts are artificially imposed upon these...