Papers by Keyword: SBN

Abstract: SBN(Series Bayesian Network) model and constructing algorithm of BN are introduced, and advantages and disadvantages of constructing SBN with MEBN(multi-entity Bayesian networks) are pointed out. Aiming at the demands of constructing SBN, expression of Markov MFrag (MEBN Fragment) within MEBN system is clarified, and probability mapping pseudo MFrags are added, then SBN constructing algorithm based on Markov extended MEBN system is studied and the constructing procedures are illuminated by an example.

Abstract: Single crystals of composition Sr0.61Ba0.39Nb2O6 (space group P4bm) were prepared using the Czochralski method. The Bond's method of the precise lattice parameter measurements was used to study structure of SBN 61 at room temperature. In this way lattice parameters a = b = 12.45676 ± 6*10-5Å and c = 3.93541 ± 5*10-5Å were determined.

Abstract: SrBi2Nb2O9 (SBN) with different Bi2O3 contents were prepared by solid-state reaction method and then spark plasma sintering. The Influence of Bi2O3 on the properties of SBN was studied. The results showed that the increased Bi2O3 contents can enhance densification and improve the dielectric properties. This might have close relation to the low melting point of Bi2O3 and special sintering way of SPS, which usually results in some change in micro-structure.