If you were in the bloodstream, you would follow the steps below one by one. Oxygen-poor blood (shown in blue) flows from the body into the right atrium. Blood flows through the right atrium into ...

The next step in making liquid oxygen is cooling it ... For now, he was able to harvest the Stirling-cycle cryocooler and rig it up in a test stand with ample forced-air cooling for the heat ...

A group of researchers, led by Utrecht earth scientists Junjie Wang and Jack Middelburg, have developed for the first time a global model that describes the entire oxygen cycle of inland waters ...

Behind oxygen depletion: accelerated oxygen cycle A group of researchers, led by Utrecht Earth scientists Junjie Wang and Jack Middelburg, have developed for the first time a global model that ...