For dynamic systems, sequential Bayesian estimation requires updating of the filtering and predictive densities. For nonlinear and non-Gaussian models, sequential updating is not as straightforward as in the linear Gaussian model. In this paper, densities are approximated as finite mixture models as is done in the Gaussian sum filter. A novel method is presented, whereby sequential updating of ...

Large eddy simulation (LES) is regarded as one of the most promising numerical methods to predict unsteady turbulent flows at high Reynolds number. In LES the flow field is decomposed into grid and subgrid scales. The grid scale (GS) flow field is computed numerically using discrete filtered Navier-Stokes equation with a model for the subgrid scale (SGS) stress. Therefore, the reliability of th...

Diierent dynamic subgrid scale models, viz. the dynamic model of Germano et al. are evaluated by means of a priori tests. Direct numerical simulation data for fully-developed turbulent and transitional incompressible ows are used. Low correlation is obtained between exact and modeled subgrid scale stresses with the DSM. Conversely, good agreement is found for both the DMM and the DTM, since tho...

A direct numerical simulation database of bubbly channel flows at friction Reynolds number 180 and with three different global void fractions has been used to perform a multiscale analysis the anisotropy stress tensor, dissipation subgrid-scale (SGS) tensor in order characterize turbulence for wide range scales down smallest structures occurring flow. Based on hypothesis Kolmogorov, non-linear ...

Insulin secretion is key for glucose homeostasis. Insulin secretory granules (SGs) exist in different functional pools, with young SGs being more mobile and preferentially secreted. However, the principles governing the mobility of age-distinct SGs remain undefined. Using the time-reporter insulin-SNAP to track age-distinct SGs we now show that their dynamics can be classified into three compon...

Spatial Genetic Structure (SGS) is correlated with life history traits and is affected by ecological and demographic processes. We discuss here the SGS within populations of three species from Cerrado Biome, Caryocar brasiliense, Dipteryx alata and Tibouchina papyrus, which vary in life history traits. Our working hypothesis was that self-incompatible and wind-dispersed species present no SGS d...

Serious Games (SGs) are gaining an ever increasing interest for education and training. Exploiting the latest simulation and visualization technologies, SGs are able to contextualize the player’s experience in challenging, realistic environments, supporting situated cognition. However, we still miss methods and tools for effectively and deeply infusing pedagogy and instruction inside digital ga...

• E-E LES modelling on three CO 2 chemisorption cases in bubble columns was conducted. Modified SGS turbulent dispersion (TDF) and added mass stress (AMS) models proposed. Impacts of the SGS-TDF SGS-AMS terms interfacial transfer were assessed. Scaling laws kinetic energy species concentration spectra discussed. It has been generally recognised that force plays an important role interphase mome...