Itâs also essential for keeping your nerves, heart, and muscles functioning properly. Since calcium is so important for many of your bodyâs functions, its levels need to be within a tight range. A second calcium blood test, called the ionized calcium blood test, measures the amount of âfreeâ calcium present in your blood. âFree calciumâ refers to calcium thatâs not bound to any proteins and not together with an anion in your blood.
The hybrid ring coupler, also called the rat-race coupler, is a four-port 3 dB directional coupler consisting of a 3Î»/2 ring of transmission line with four lines at the intervals shown in figure 12. Power input at port 1 splits and travels both ways round the ring.
Hose Couplers (glad hands) Defined: Glad hands are coupling devices used to connect the service and emergency air lines from the truck or tractor to the trailer. The couplers have a rubber seal which prevents air from escaping. To connect the glad hands, the driver presses the two seals together with the couplers at a 90Â° angle to each other. A turn of the glad hand attached to the hose will join and lock the couplers. Click on the item titles below for complete product details