Exercise-induced bronchospasm (EIB) happens when the airways in your lungs narrow when you exercise. This makes it hard to breathe. If you have EIB, it may be hard to exercise for more than 30 minutes at a time. EIB also is called exercise-induced bronchoconstriction. It is the same thing as exercise-induced asthma.
When traces on a circuit board need to connect to another layer, they typically end up on a pad and then through a via on that pad go to connect to another layer. An annular ring is the area on the pad that surrounds the via. An Annular Ring Width is the (diameter of the pad-diameter of the hole) / 2. (Tangency is the default option, and the DFM will check for 5 Mils minimum annular ring width). (NOTE: accepting Breakouts is typically NOT recommended!).
By Doug Stelling. The annular plate-to-shell junction is one of the most critical areas in an API 650 Tank, and is one of the most difficult areas in which to assess corrosion. The annular plate typically rests on a crushed stone or concrete ring wall, and joins the highly stressed shell of the tank to the bottom plates. The bottom plates are for the most part supported by the tank pad or foundation, and are lowly stressed.