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.
Now, here's the catch: Many people think gas and bloating are one and the same, so when people are bloated, they're likely to attribute their symptoms to excess gas. But excess gas is not always the culprit. It's possible to feel bloated even when producing a normal amount of gas.