When we decided to become electronics engineers, we were introduced to Ohm's Law and to two enshrined methods of analyzing circuits. These were called “loop analysis” and “node analysis.” We were told ...

Author’s note: This article shows how to derive circuit gain equations via a signal flow graph. With practice you may be able to write a gain equation by locating signal paths and loops in the ...

Proper design of the air ventilation system is critical to maintaining a healthy environment for the ISS crew. In this study, a computational fluid dynamic model was used to model the air circulation ...