We consider the question of whether cosmic ray catalysed false vacuum decay can be phenomenologically more important than spontaneous decay via quantum tunnelling. We extend the zero bubble wall width Landau-WKB analysis of catalysed false vacuum decay to include the leading order effects of finite wall width and derive an expression for the thin-wall bubble action. Using this we calculate the ...

The paper presents a numerical analysis of thick-walled PA66 GF30 moldings with the addition chemical blowing agent content 1-3 wt%, and obtained results were compared real object. Computer simulations performed using Moldex3D ® software. Based on analysis, it was found that regardless dose used, largest pores place in core sample. Moreover, size depends their number cross-section moldings. Com...

We read with great interest the well-written article by Tseng and Chen, 1 who described the case of a 65-year-old woman who presented with hemoptysis and a cavitary lesion in the right lung with an air crescent sign and an intracavitary fungus ball-like mass. The final diagnosis was lung carcinoma. The authors highlighted the importance of cavity wall thickness for the differential diagnosis, r...