signal-to-noise ratio power factor q factor coefficient of performance compression ratio factor of safety display aspect ratio power-to-weight ratio antenna gain thrust-to-weight ratio standing wave ratio dynamic range common-mode rejection ratio quantum efficiency eb/ n0 bypass ratio water–cement ratio aspect ratio (aeronautics) stroke ratio specific strength figure of merit data compression ratio return loss insertion loss volumetric efficiency steering ratio carrier-to-noise ratio tip-speed ratio signal-to-interference-plus-noise ratio gliding flight power supply rejection ratio overall pressure ratio signal-to-quantization-noise ratio strehl ratio turndown ratio antenna efficiency transmissibility (vibration) extinction ratio slip ratio engine pressure ratio motion ratio transformer utilization factor close-ratio transmission lighting ratio front-to-back ratio sail area- displacement ratio displacement–length ratio excess noise ratio crawl ratio
Engineering_Engineering concepts