... G.P.Panasenko (J.-V.Poncelet, Moscow) Multiscale problems: junction of models of different dimension, applications to hemodynamics. ... Gubkina , Moscow, Russia . ... The workshop is devoted to an important trend in mathematical modeling, the multiscale methods and its applications in biology and medicine. ... It was organized in the frame of the thematic year on the multiscale methods and modeling in biology and medicine organized by the Russian-French laboratory J.-V.Poncelet. ...

... Archives . ... In order to understand a learning procedure statistically it is necessary to identify two important aspects: its structural model and its error model. ... Without verification, I saw too often times that simple Gaussian error models are almost always adopted in astronomy. ... Additional but small efforts of the statistically apprehensible quantification of astronomical structure models and associated errors would lead cornucopia of error models beyond simple Gaussian error model. ...

... Next: Spatial Models and Up: Statistical Analysis Previous: Statistical Consulting Center . ... Sampling techniques are used to explore the Bayesian posterior density in imaging problems. ... An alternative approach is to adopt a data modeling perspective of the imaging problem. ... Stochastic Relaxation (SR) is such a method, with foundations in statistical physics. ... Figure: Panel 1: artificial sky field. ... Panel 3: ML MAP estimator. ... This ME estimator is depicted in Panel 4 of Figure . ...

MATHEMATICAL MODELING: . ... This model is developed on the base of the probabilistic description of the collisional aeronomical processes and is realized on a computer as the numerical system (stochastic model). ... Shematovich, V.I., Bisikalo , D.V.             Nonequilibrium processes in the planetary and cometary atmospheres. ... In Russian) . ... Piarnpuu , A. A.; and Shematovich, V. I.       Construction of structural stochastic models of collision processes in rarefied gas media (abstract) . ...

... These computer models are doing very well, but not yet well enough. The problem is dynamic range: any simulation that models a large enough piece of the universe to be representative (a cube of 100 Mpc on a side seems sufficient), cannot have the resolution to accurately follow what happens on galactic scales ( kpc). At present, each point in the n-body code represents around , and you cannot model star formation and galaxy dynamics with only particles. ...

... Back to top . Adaptive Regularized Restoration Algorithms Applied to HST Images , Aggelos K. Katsaggelos, Moon Gi Kang Mark R. Banham . ... Iterative/Recursive Deconvolution with Application to HST Data , James M. Coggins, Laura Kellar Fullton Bruce W. Carney . ... HST Image Restoration with Variable Resolution , Jorge N??ez Jorge Llacer . ... Restoration of FOC Imaging Data: Some Considerations , Dave Baxter . ... Evaluation of Image Restoration Algorithms Applied to HST Images , I. C. Busko . ...

... Bojan Nikolic web pages home . ... As an exercise to put through the new InMin library through its paces, I have looked recently at applying Nested Sampling ( Skilling2006 ) algorithm to the fitting of star-formation history as function of redshift. ... The data I used are from Figure 1 of Yuksel08 but I use only the grey data paints, which are just the data originally from Hopkins2006 . ... The next step is to define the function which is the model for the history of the SFR density. ...

... To determine the parameters we want (stellar magnitudes and colors) from the observations we have, we fit the data to a model. The model should represent the circumstances of the observations as realistically as possible; otherwise, effects present in the data but not in the model will be distributed among the available adjustable parameters, such as stellar magnitudes, extinction coefficients, and transformation parameters. ... The bias problem . ...

Astroinformatics Heidelberg Institute for Theoretical Studies Solving Regression Problems with Machine Learning lessons learned from learning machines no w op wi tim th m od ize GP el d U s December 12, 2013 Astroinformatics 2013 | Sydney 9-13 Dezember | ... 2013 December 12, 2013 Astroinformatics 2013 | ... 2014 December 12, 2013 Astroinformatics 2013 | ... Kai Lars Polsterer ... ... optimized for machine learning 12 / 13 thanks for a great week in Sydney December 12, 2013 Astroinformatics 2013 | ...

. XMM Radiation Environment Models and Monitor . Introduction . Representative Orbits . XMM RM – Geographic Coordinates . Magnetospheric Coordinates (B L) . XMM Data in [B,L] Coordinates . XMM RM – [R, ?] Coordinates . XMM RM Data in L-localtime – No External B Model . XMM RM in L-LocalTime . Solar Proton Contribution . Effects to be Considered . Conclusions . Problems Encountered . Other Points/ Future Activities . Author: Hugh Evans . Email: hevans@estec.esa.nl@estec.esa.nl

... 2.3 Establishing the Extragalactic Distance Scale . ... 2.3.2 The Second Rung: Distances to stellar clusters . ... 2.3.4 Distances to Local Group Galaxies . ... The Luminosity Function of Planetary Nebulae . ... 3.2.2 Clusters of Galaxies . ... 4.2 Evidence for Dark Matter as a Function of Scale Size . ... 4.3 Other Dark Matter Indicators for Galaxies . ... What is the nature of the large-scale distribution of matter in the universe as traced by the three-dimensional galaxy distribution? ...

SPECIALIZED COMPUTER SYSTEMS FOR MATHEMATICAL MODELING OF DISCRETE POINT STRUCTURES READOUT PROCESS Aleksandr Reznik, Andrey Torgov, Aleksandr Soloviev Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences The paper describes the specialized software systems that have been used to solve difficult mathematical problems in digital images processing. ... Systems for the first computers based on FORTRAN. ... Systems based on Matlab special environment. ...

... G., Filippova A.S. Presented by: Filippova A.S Achievements · Refined model based on the celestial-mechanics methods is presented that is a generalized version of the previously developed basic model · Subtle effects are qualitatively explained based on the amplitude-frequency analysis and the computer numerical modelling of the oscillatory pole motion, where the key feature is the Chandler wobble 2 Basic Model of the Polar Oscillations ...

... Postulates and hypothesises during Standard Solar Model construction. Main course - an evolution of hydrogen abundance. Main work - a sequence of stationary models. What is a stationary model - postulates of . a) dynamic equilibrium, . b) local enegry conservation (existence of enegry sourse), . ... Equilibrium of gravity and gas pressure . ... Gradient of sound speed. ... Equation for pressure disturbace as result of sound speed changes (liniarization of hydrostatic equation) . ...

Hydrocode Modeling of a High-velocity Impact of an Asteroid Particle on a Steel Surface . ... Present work deals with physical-mathematical modeling of hyper-velocity impacts up to 80 km/s. This problem is very important for asteroid protection systems and other critical nuclear and military objects. ... As a result of modeling, new models and criteria of extreme states of solids will be developed to describe hyper-velocity impacts. ... The LS-DYNA 3D hydrocode was used. ...

... The magnetic field of the Earth has been investigated by satellites for several decades now, and enough of it is known to model its average strength and shape during different levels of overall magnetic activity. Presently the most used empirical global magnetic field models are the Tsyganenko models (1987, 1989) , referred to as T87 and T89, respectively, although even these consist of several submodels. ... Earth's magnetic field from T89c model during Kp=2 for different seasons. ... Res. ...

COMPUTATIONAL PHYSICS LABORATORY . ... At present the following problems are studied most intensively: . ... development of numerical models for coherent radiation of relativistic electron beams in open and superdimentional electromagnetic structures; . ... development of effective algorithms for solving the inverse problems of electromagnetic tomography. ... Computational physics laboratory is concerned with organization and development of computer network in the institute. ... IRE RAS 1996-200 9 ...

Next: Fit routines Up: Basic widget procedures Previous: Load data Contents . The following menu bundles all routines related to reading and fitting of the hierarchical model. The fit routine should not be confused with specialized and customized fitting routines to be found elsewhere (in AMOEBA FIT). ... C ALC Compute model data. FIT General model fitting widget. ... The general model fitting widget displays all components of the model, and the parameters associated with each one of them. ...

... Dark matter in normal galaxies . ... I will pay attention to such issues as the constraints on dark matter profile, micro-lensing counts from the galactic bar, rotation and the structure of the bar. One of the central issues of the modeling is the exchange of the angular momentum between the disk and the dark matter. ... Our results indicate that in realistic models the exchange of angular momentum between the bar and the dark matter is much smaller than previously estimated. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Although their determination is based on the scattering process model, independent check-ups by rocket experiments have shown their correctness in experimental applications. ... Ionospheric data analysis, especially during strong disturbances, cannot be without some other kinds of diagnostic tools. ... The lack of data has always been a challange in this case. ...