A Bayesian method for identifying independent sources of by Zhang F., Mallick B., Weng Z.

By Zhang F., Mallick B., Weng Z.

A Bayesian blind resource separation (BSS) set of rules is proposed during this paper to recuperate self reliant assets from saw multivariate spatial styles. As a known mechanism, Gaussian blend version is followed to symbolize the resources for statistical description and computing device studying. within the context of linear latent variable BSS version, a few conjugate priors are integrated into the hyperparameters estimation of combining matrix. The proposed set of rules then approximates the entire posteriors over version constitution and resource parameters in an analytical demeanour according to variational Bayesian remedy. Experimental experiences reveal that this Bayesian resource separation set of rules is suitable for systematic spatial trend research by way of modeling arbitrary assets and determine their results on excessive dimensional size facts. The pointed out styles will function prognosis aids for gaining perception into the character of actual approach for the capability use of statistical qc.

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Because of the complexity of the phenomena governing melt relocation and the resultant lower head failure, substantial uncertainties are inherently present in any analytical/numerical predictions of the timing of RPV failure. MOD3code predicts a local failure of the lower head due to the drain plug meltdownwhen, following the lower core plate failure, molten fuel is released into the lower plenum. MOD3 predicted sequence, In one of them, the RPV failure was delayed by approximately 20 min, and by about one hour in the other, both relativeto the basic case.

Melting rate of the upper vessel structures for the basic case (Case 1) .................................... MOD3 simulations of core meltdown progression ....................... 2-9 Cases studied in the parametric analysis of corium composition during short-term station blackout at Peach Bottom .............................................................................................. MOD3-calculated main events in a short-term station blackout accident at Peach Bottom. Case 1 ..........................................................................................................

Iii Contents ................................................................................................................................................ v Figures ................................................................................................................................................... vi Tables ................................................................................................................................................... vi Executive Summary ..............................................................................................................................

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