Mat Properties. The catalytic converter shell has to be designed in such a way as to provide the required mounting pressure for a given catalyst substrate and a given mat. The mounting pressure of the mat increases exponentially during the compression from its initial bulk density to the final target density.
Sometimes a severely bloated stomach â along with constipation, nausea and vomiting â is due to a bowel obstruction, which is caused by scar tissue or a tumor. When these grow and press against the bowel, the bowels become blocked and hold in fluid and stool.
Prevalence, Causes and Treatment. One of the the commonest cause of bloating is food intolerance - or the inability to fully digest certain foods. Incomplete digestive processing produces unexpected gases in the intestine - creating painful pressure, and making the abdomen balloon outwards - stomach bloating.