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Metal-inert-gas (MIG) welding is the most-widely used form of arc welding in manufacturing. An arc is struck, usually in argon, between a metal wire electrode and the workpiece. The wire electrode melts, forming droplets that pass through the arc into the weld pool (the molten region of the workpiece).
Introduction. Electrocardiography (ECG) can be used to collect heart rate data which in turn can be used to measure heart rate variability (HRV). The sympathetic and parasympathetic nervous systems have the ability to affect this variability, which can ultimately affect arousal levels. Background. This study was designed to determine if changes to HRV can be detected while subjects undergo transcranial...
This paper focuses on the numerical investigation of arc plasma behavior in low-voltage circuit breaker with arc-splitting process included. A 3-D simulation model of a certain type miniature circuit breaker product is built and calculated, which is based on magnetohydrodynamics theory. Aside from coupled electromagnetic and gas dynamic interactions being considered as usual, a thin layer of nonlinear...
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