Contact wear Mechanically, it can be due to the movement ... by working on the maintenance side of the High Voltage Circuit Breakers of Hydro-Quebec for 18 years. His specialties are the ABB (models ...

May 9, 2025 — As a recent leap in green chemistry, scientists have unveiled a new catalyst that enables high yields of sulfones using molecular oxygen -- at close ... Scientists Discover Class ...

Mechanically-interlocked molecules like rotaxanes and catenanes are gaining attention for their dynamic properties and unique structures. Here, the authors review cyclodextrin-based rotaxanes ...

Abstract: Mechanical condition assessment of circuit breakers (CBs) in the power system, if correctly applied, can make an optimal decision on whether, where, and how to perform maintenance. This ...

Abstract: State-of-the-art mechanical circuit breakers in medium-voltage systems allow a safe handling of short-circuits if the short circuit power of the grid is limited. Using delayed turn-off times ...

†Shiga University of Medical Science. ‡Kyoto University. ⊥Current address: Institute of Polymer Optoelectronic Materials & Devices, Key Laboratory of Specially Functional Materials and Advanced ...

Functional Modules Group, Organic Nanomaterials Center, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044 Japan, and Max Plank Institute of Colloids and Interfaces, Research ...