A5070252469- Nuclear reactor physics and engineering
- Nuclear Physics and Applications
- Nuclear Materials and Properties
- Probabilistic and Robust Engineering Design
- Fault Detection and Control Systems
- Graphite, nuclear technology, radiation studies
- Nuclear Engineering Thermal-Hydraulics
- Nuclear and radioactivity studies
- Mathematical Approximation and Integration
- Seismic Imaging and Inversion Techniques
- Seismic Waves and Analysis
- Heat transfer and supercritical fluids
- Drilling and Well Engineering
- Radiation Therapy and Dosimetry
- Process Optimization and Integration
- Advanced Multi-Objective Optimization Algorithms
- X-ray Diffraction in Crystallography
- Laser-Plasma Interactions and Diagnostics
- Radiative Heat Transfer Studies
- Fusion materials and technologies
- Hydraulic Fracturing and Reservoir Analysis
- Orbital Angular Momentum in Optics
- Nuclear materials and radiation effects
- Electromagnetic Scattering and Analysis
- Atomic and Subatomic Physics Research
South African Nuclear Energy Corporation (South Africa)
2015-2024
North Carolina State University
2020-2024
North-West University
2023
CEA Paris-Saclay
2003-2007
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2003-2007
Direction des énergies
2003-2006
Institut de Physique
2005
CEA Cadarache
2003-2004
Institute of Engineering Physics
2001
The variance-based global sensitivity analysis technique is robust, has a wide range of applicability, and provides accurate information for most models. However, it requires input variables to be statistically independent. A modification this that allows one deal with are blockwise correlated normally distributed presented. focus study the application modified calculations reactor parameters dependent on groupwise neutron cross-sections. main effort in work establishing method practical...
Propagation of tube waves in an infinite fluid-filled borehole, generated by a single-force point source placed the elastic surrounding formation, is analyzed long-wave approximation. Integral representations precise solution are obtained both for fast and slow formations. An asymptotic analysis tube-wave propagation borehole performed on basis these two integral representations. The complete wave field fluid formation consists P SV phases lowest eigenmode Stoneley (tube wave). For conical...
A propagating self-sustained annealing of radiation induced defects as a result thermal-concentration instability is studied. The that are considered in the model complexes. Each them consists one atom impunity and interstitial atom. Crystal with has extra energy which transformed into heat during defect annealing. Simulation auto-wave been performed. front speed have obtained. It shown occurs narrow region time space. There two kinds such behaviour. In first case oscillates near its...
The notion of in-core fuel management (ICFM) involves decision making in respect the specific arrangement assemblies a nuclear reactor core. This arrangement, referred to as reload configuration, influences efficiency and effectiveness usage reactor. A support system (DSS) may assist operators improving quality their configuration designs. In this paper, generic optimisation-based DSS framework is proposed for multi-objective ICFM, with intention serving high-level formalisation computerised...
A wavefront sensor based on the Talbot effect has been created. Efficient algorithms for digital analysis of talbograms have found. The possibility visualizing optical density perturbations along path a laser beam is demonstrated, which makes it possible to use create adaptive communication systems in free space.
We discuss the estimation of uncertainty and sensitivity parameters for a model response under assumption that input variables are normally distributed block-wise correlated with covariance matrix, which is small in some norm. These conditions may arise when considering impact group-wise neutron cross-sections' uncertainties on reactor such as multiplication factor. The variance-based global analysis, considered our work, involves calculation multidimensional integrals. When small, values...
In this paper, we formulate a new flux reconstruction method based on the High Dimensional Model Representation (HDMR) of nodal shape. The requires conventional parameters obtained as result transverse-integration solution procedure well corner values calculated by combination finite-volume and finite-difference approximations. proposed is applicable to rectangular nodes more than two energy groups. applied number homogeneous heterogeneous test problems in order evaluate its accuracy.