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.
Possible Causes for Feeling Weak & Bloated. After the New Year, I regained my focus on weight loss and began a healthier eating regime. I was doing well, or so I thought, until after a few days I began feeling bloated and then my perceptions changed. It seemed like nothing I did would relieve this awkward feeling in the pit of my stomach.