An intraosseous delivery apparatus having a perforating member that is made of a titanium alloy whose flexibility, wearability and cutting ability is greater than that of conventional hardened stainless steel. The method also includes detecting a number of faces visible in the video stream, and performing a speaker segmentation on the media. In operation, the ESR meter is connected to the primary winding and the capacitor to be measured is connected to one of the secondary windings. The source wavelet and reflectivity parameters can be determined simultaneously. An event manager captures events including billing events and writes to an event log and to a billing log. The position of the plunger inside the valve can also be adjusted to selectively provide a hot gas by-pass function by routing a portion of refrigerant from discharge to suction line.