Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The Christian Science Church, and we’ve always been transparent about that. The Church publishes the Monitor ...

Figure 1. A closed-circuit cooler. Photos courtesy of Evapco. It’s a common question during the early design phase of large mechanical systems: Is open- or closed-loop cooling equipment better suited ...

SAN DIEGO — The next advance in spinal cord stimulation (SCS) could be a closed-loop system that uses evoked compound action potentials (ECAPs) to maintain therapeutic activation, results of the phase ...

Open-loop stepper motors have held a prominent position in automation applications over the years due to their simplicity, excellent positioning, and low cost. However, as manufacturers utilize faster ...

Indian researchers have compiled an extensive review of all existing synchronization techniques for grid-connected PV systems. They divided the methods into open-loop and closed-loop systems and ...