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For a V/F controlled induction motor drive system, the instability problem of sustained oscillations has often been experienced in light load state. This paper analyzes the relationship between the oscillations and the fluctuation of reactive currents and then proposes a method to improve the stability of conventional V/F control algorithm. This paper contributes to the solution of this problem based...
Objective: This study examined the effects of peroxynitrite (ONOO - ) on cardiac function and cellular injury following ischemia (30 min) and reperfusion (60 min) in isolated perfused rat hearts. Methods: 3-Morpholinosydnonimine (SIN-1, 0.1 mM), an ONOO - donor, was administered alone or combined with superoxide dismutase (SOD, 300 U/ml) or glutathione (GSH, 1 mM) at the time of reperfusion...
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