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It is used for numerical simulations of selected tests on the global bearing behaviour of underground district heating pipelines which were carried out as part of the research cooperation project.

Feasibility of the MR-only workflow The objective of the proposed method is a better knowledge of the spatial energy distribution SED supplied by multimodal cavities. Good agreement is generally obtained between the calculated values and those obtained experimentally from the photo-ionization yield curves. Les vitesses et frequences de battement et les temps d’executions calcules par les nouvelles methodes versus ceux calcules par les methodes classiques ont ete analyses.

The determination of stress in a rotating yratuit plane of symmetry normal to the axis of rotation has been studied by a number of investigators. Moreover the neutron balance analysis emphasized the inadequacy of the standard self-shielding formalism NITAWL in the international SCALE package to account for U resonance mutual mtt in the pellet-fissile liquor gratuif.

Multiplication factors, reaction rates, power maps and peak factors were compared. The experimental results were compared with batimrnt results of the Monte Carlo simulations.

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Scoring systems based on binary logistic regression models are a specific type of predictive model. Enfin, les resultats du. The global analysis of bearing loads and displacements is done with a numerical model, in which the plastic jacked pipe is idealized as a beam, and the effect of the soil is idealized batimenh spring elements with non-linear force displacement characteristics.

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Nous utilisons enfin, cette formule pour calculer l’antireactivite des barres perpendiculaires a l’axe dans une pile cylindrique.

Originally used for fast neutron reactor calculationsthe subgroup method has many advantages such as using an exact slowing down equation. Impact of the Heat Transfer on the Performance Calculations of Automotive Turbocharger Compressor Influence des transferts thermiques sur le calcul des performances des compresseurs de suralimentation. The development and validation of control rod calculation methods.

The verification and validation of the global code have been prepared recently. A sensitivity analysis of typical cells used, the approximations employed to solve the transport equation Sn or Diffusionthe 1-D or 2-D representation and densification of the spatial network used, with the aim of evaluating their influence on the parameters studied and to come to an optimum combination to be used in future design calculations.

The post test calculations show that the analytical results meet the experimental data within the reproducibility of the experiments. Finally, the present study contributes to a realistic analysis of nuclear reactors, in the sense that the uncertainties of.

Dans un recent rapport, Reich donne une solution pour le calcul des disques asymetriques. Development and validation of a criticality calculation scheme based on French deterministic transport codes.

validation des calculs: Topics by

A theoretical study of the main physical parameters involved in fuel dissolution calculations was performed, i. This thesis valcul a contribution to the validation of recent methods for the calculated modelling of the interaction between a district heating pipeline and the subsoil on the basis of. The aim calcup this study was to verify the temporal accuracy of the estimated dose distribution by a 4D dose calculation 4DDC in comparison to measurements.

Construction Calculator Snappy Appz Inc. Predictions of steam generator soiling – experiment, calculationnumerical simulation; Vorhersage des Ansatzverhaltens in Dampferzeugern – Experiment, Berechnung und numerische Simulation.

As the cavitation for this type of vessel is primarily caused by a highly non-uniform wake, the hull was also included in the simulation. Using seven testing cases, it was found that both programs satisfied the requirements for basic paternity cases.

Since there can obviously be a fairly large inaccuracy in the calculationsit seems reasonable to consider some degree of conservatism when establishing clearance bahiment based on.

This article critically discusses the validity of formal sample size calculation for animal studies.

No clear trend on the JEFF3 iron cross sections was brought into evidence up to now for fission reactor calculations. The secondary purpose of the validation project was to give a quantification of the level of conservatism in clearance levels based on these codes.

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Entering the same clinical information produces widely varying results with little explanation. Despite the fact that iron is widely used in the nuclear industry, large uncertainties are still associated with its nuclear data, particularly its inelastic cross section which is very important in the neutron slowing down. The calculators ‘ predictions were analyzed using calibration plots and the area under the receiver operating characteristic curve area under the curve.

Since being in school I have downloaded the scientific calculator and simply loved it, now with this new calculator it is the same UI for entering key commands and the look is the same as what your used to. Calculation programme for the accidental transients in reactors of the gas-graphite type; Programme de calcul des transitoires accidentels des piles de la filiere graphite-gaz. The difficulties of the formulation of the equations of phenomena occurring during the operation of a fusion reactor are underlined.

Development and validation of continuous energy adjoint-weighted calculations. However, these types of accuracies can only be obtained realistically by validation of nuclear data and calculational methods in benchmark facilities.

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Automation of nonlinear calculations in the theory of fusion reactor; Automatisation des calculs non lineaires dans la theorie des reacteurs a fusion. This report gathers and presents in a simple way results of studies performed at the CEA on issues of spectra in thermal reactors. The validity of the model has been checked in the case of sandy soils by comparing the exposure rates calculated for five sites with the experimental values obtained with an ionisation chamber.

In this paper; we show the interest of the heterostructures initially, then jtr need for using a numerical method and in particular that of Monte Carlo, to calculate electric transport in the semiconductors.