BGE reviews several alternatives for a battery open-circuit monitoring device to protect from a dc supply single point of failure. The Federal Energy Regulatory Commission issued Order 867 on Jan. 23, ...

The inclusion of long-range electrostatic effects in the modelling of donor–acceptor systems now leads to a more accurate estimation of the energy landscape and open-circuit voltage of organic ...

Qucs is a GPL circuit simulator. And if you want the GUI option, you might want to try out QucsStudio, which uses Qucs under the hood, and is free to use, but binary-only.