SEARCH Articles Figures Tables Basic Components and Operation Basic Components and Operation of a Fuel Cell Circuit components, operational amplifie Co-operative behavior of a multi-component system Electrochemical Device—Basic Components and Operation Electron-spin operator components Four-component Dirac operator Inversion operator four-component Multi-component operation Multistage Operation One Component Transferred Operational amplifier instruments, components Operational in-service inspection components Operations concept component Operators component projection Operators time-reversal, four-component Preparing components (Preliminary operations) Reflection operator, four-component Safe operating components Structures, systems and components for abnormal operating conditions The human operator as an essential component Z-component of the spin operator