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When a racon receives a radar pulse, it responds with a signal on the same frequency which puts an image on the radar display. This takes the form of a short line of dots and dashes forming a Morse character radiating away from the location of the beacon on the normal plan position indicator radar display. The length of the line usually ...
Failure mode effects and criticality analysis ( FMECA) is an extension of failure mode and effects analysis (FMEA). FMEA is a bottom-up, inductive analytical method which may be performed at either the functional or piece-part level. FMECA extends FMEA by including a criticality analysis, which is used to chart the probability of failure modes ...
Identification, friend or foe ( IFF) is a combat identification system designed for command and control. It uses a transponder that listens for an interrogation signal and then sends a response that identifies the broadcaster. IFF systems usually use radar frequencies, but other electromagnetic frequencies, radio or infrared, may be used. [1]
Face-to-face conversation is the best form of communication (co-location). Working software is the primary measure of progress. Sustainable development, able to maintain a constant pace. Continuous attention to technical excellence and good design. Simplicity—the art of maximizing the amount of work not done—is essential.
A Tesla Model S car was in “Full Self-Driving” mode when it hit and killed a 28-year-old motorcyclist in the Seattle area in April, police said, making it at least the second fatal accident ...
Authorities in Western states warned of the rising risk of wildfires amid a protracted heat wave that has dried out the landscape while setting temperature records and putting lives at risk.
The Sahm Rule, developed by economist Claudia Sahm, says that the US economy has entered a recession if the three-month average of the national unemployment rate has risen 0.5% or more from the ...
A safety data sheet ( SDS ), [ 1] material safety data sheet ( MSDS ), or product safety data sheet ( PSDS) is a document that lists information relating to occupational safety and health for the use of various substances and products. SDSs are a widely used type of fact sheet used to catalogue information on chemical species including chemical ...