Sentence examples for pump against from inspiring English sources

The heart becomes thicker-walled from having to pump against the pressure, and less able to respond to the demands of exertion.

As the heart continues to pump against the raised blood pressure, the left ventricle becomes enlarged, and the amount of blood pumped by the heart goes down.

In high pressure systems, consideration must be given to the sudden starting of a seal pump against a high system pressure.

The diaphragm pumps are self-priming, pump from a few nanoliters to a few microliters per cycle at overall rates from 1 to over 100 nl/s, and can reliably pump against 42 kPa pressure heads.

Starting from 6-benzyloxypyridine-3-boronic acid I that we previously identified as a potential inhibitor of the NorA efflux pump against the NorA-overexpressing S. aureus 1199B strain (SA1199B), we describe here the synthesis and biological evaluation of a series of 6- aryl)alkoxypyridine-3-boronic acids.

The authors noted that following the sympathetic surge, the left ventricle had reached its workfailure threshold and failed to effectively pump against the systemic pressures.

The outcome is a slower, more economical heart that can meet the demand for pumping against an increase in pressure.

In December, some 2.2m barrels a day were being pumped, against a projected 3m b/d, the pre-war figure.

In a reverse-osmosis system, brackish or salt water is pumped against one side of a special membrane.

Usually, a constant speed pump pumps against a control valve that is partially closed for most of the time.

In June, the S.E.C. filed fraud charges based on suspected portfolio pumping against Burton G. Friedlander, a small hedge fund manager.