How do fixed expenses differ from variable expenses? Here's a comparison of fixed expenses vs. variable expenses to help you budget efficiently. Read on.

This paper describes the recent efforts on developing an automotive climate control system throughout integrating an electrically-controlled variable capacity scroll compressor with a fuzzy logic ...

I introduce the notion of a 'control variable' which gives us a way of seeing how mental causation could be an unproblematic case of causation in general, rather than being some sui generis form of ...

The way we control the speed of fan motors or pump motors has tremendously changed in the past two decades with the introduction of variable-frequency drives (VFDs), aka variable-frequency controllers ...

Dear Liz: We paid a lot for our house, and a lot to renovate it seven years ago. My banker recommended taking a low-interest loan against our assets at the bank instead of selling investments to pay ...

Soft starters and VFDs both effectively control motors and are efficient users of energy. Determining which technology to use depends on understanding the performance needs of the application. A ...