BEIJING -- Chinese researchers have developed a new air quality model that enables more accurate simulation of two major pollutants: fine particulate matter and ground-level ozone. Named the Emission ...

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Abstract: A molded case circuit breaker (MCCB) is a critical low-voltage switching device widely used to protect electrical circuits from fault currents by interrupting the flow of excessive current.

Abstract: Circuit breaker is an important protection equipment in the power system, and its ability to work safely and reliably determines the safe and stable operation of the power grid. Arc is the ...