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 ...

TfL combines open and closed loop systems, using Oyster Cards, contactless card payments, and NFC Google or Apple pay, alongside physical ticketing. Transport for London (TfL) has long been regarded ...

Closed-loop pumped-hydro storage offers more chances to minimize environmental effects on water sources and overcomes the problem of finding suitable sites. According to an Australian research team, ...

A large registry study in young people with type 1 diabetes found that hybrid closed-loop systems were linked to slightly better HbA1c and more time in the target glucose range than open-loop pump ...

An open-label randomized trial found patients using the closed-loop system had more time in their target glucose ranges. Closed-loop insulin therapy systems continually monitor insulin and pump ...

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 ...

This new study of pediatric patients with type 1 diabetes from France and Belgium investigated the effectiveness of insulin delivery via closed-loop and open-loop systems. Closed-loop delivery of ...

In 2012, Automation World published an article looking at the decision factors faced when choosing electric or pneumatic actuators. More than a decade later, manufacturing engineers and OEMs still ...