What does QO breaker mean?

What does QO breaker mean? Qwik-Open These “Qwik-Open” or QO breakers are the fastest opening breakers in use in the industry. They reportedly open after just one full power cycle of a 60 Hz AC line (about 1/60th of a second). These breakers feature a visual trip indicator and make it easy to quickly spot […]

What is Hemibranch gills?

What is Hemibranch gills? hemibranch (English) A gill with a single series of filaments; half of a normal gill. Gill with filaments on only one side. ( What is Hemibranch and Holobranch? Holobranch is a pair of hemibranchs on the same gill arch while hemibranch is in fishes, either of the two rows of gill […]

What do catecholamines do during labor?

What do catecholamines do during labor? Fetal plasma catecholamine concentrations during birth are remarkably higher than those in adult life. The function of those high catecholamine concentrations has been shown to control fetal circulation during hypoxia, to maintain glucose supply to the heart and brain, and to prepare the lung for ventilation. Which direct effect […]

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