Abstract An approach to design and implement the control function of LD (Ladder Diagram) in the hydropower simulation system based on all paths searching algorithm is proposed in this paper. LD is ...

The purpose of this project is to present an alternative for the Arduino boards programming through a ladder diagram development environment. Similarly, it seeks to provide a new option for both ...

It’s less clear who invented the book ladder, likely because using a ladder to reach high-up books is probably an idea that many libraries and collectors arrived at on their own.