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Oxygenates remote atmospheres

A three-stage machine capable of compressing 2 scfm of contaminated oxygen from atmospheric pre.ssure to 2500 psi is being designed. The diaphragm heads will be located remotely with respect to the drive, as is done in diaphragm feed pumps. [Pg.453]

Fig. 5.8. When photosystem II is activated by absorbing photons, electrons are passed along an electron-acceptor chain and are eventually donated to photosystem I and finally to NAPD+. Photosystem II is responsible for the photolytic dissociation of water and the production of atmospheric oxygen. This pathway is sometimes referred to as the Z scheme because of its zigzag route, as depicted here, but the two arms are in fact remote in space. (Note Plastocyanin (Cu) is an alternative late replacement for an Fe cytochrome complex). Fig. 5.8. When photosystem II is activated by absorbing photons, electrons are passed along an electron-acceptor chain and are eventually donated to photosystem I and finally to NAPD+. Photosystem II is responsible for the photolytic dissociation of water and the production of atmospheric oxygen. This pathway is sometimes referred to as the Z scheme because of its zigzag route, as depicted here, but the two arms are in fact remote in space. (Note Plastocyanin (Cu) is an alternative late replacement for an Fe cytochrome complex).
Because of the increased partial pressure of oxygen in the chamber atmosphere there is the remote possibility of an enhancement of combustion. There are reports indicating that the flammability of given materials under variations of pressure remains essentially constant, providing the ratios of the various gases in the system remain constant. Only nonflam-... [Pg.114]

The search for surface deposits that preserve anomalous oxygen isotope fractionations led fi om improbable sites such as the hyper-arid, super-hot Atacama Desert, Chile, to super-cold sampling pits dug in snow at the South Pole. The proxy dragnet focused on these remote sites because aridity and freezing are two viable methods for preserving water-soluble, direct products of atmospheric chemistry for detailed investigations. Anomalously fractionated... [Pg.273]

Briefly stated, the procedure is as follows An electric fuse wire is attached to the sample being tested, so that it can be ignited by remote control 2,000 g of water are poured around the bomb 25 to 30 atmospheres of oxygen are added to the bomb the material is ignited the heat given off from the burned material warms the water and a thermometer registers the change in temperature of the water. [Pg.38]

By installing the atmospheric insulated system, the annual losses in oxygen could amount to about 60,000 in LOX equivalent since the vapor losses are continuous. This assumed liquid oxygen is worth about 40 /gallon in storage systems remotely located from production facilities. [Pg.461]


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See also in sourсe #XX -- [ Pg.96 ]




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