The camshaft. The valve train consists of the valves and a mechanism that opens and closes them. The opening and closing system is called a camshaft. The camshaft has lobes on it that move the valves up and down, as shown in Figure 5. Most modern engines have what are called overhead cams.
A Foreign Service Officer (FSO) is a commissioned member of the United States Foreign Service. As diplomats, Foreign Service Officers formulate and implement the foreign policy of the United States.
An international civil servant or international staff member is a civilian employee that is employed by an intergovernmental organization. These international civil servants do not resort under any national legislation (from which they have immunity of jurisdiction) but are governed by an internal staff regulations.