When required in tonnage quantities, oxygen is prepared by the fractionaldistillationof liquid air. Of the main components of air, oxygen has the highest boiling point and therefore is lessvolatilethannitrogenandargon. The process takes advantage of the fact that when a compressed gas is allowed ...
Although oxygen vacancies play an important role in enhancing photocatalytic activity, it is difficult to maintain long-term stability. This is mainly because oxygen vacancies are easily filled by water/oxygen molecules in the air during the photocatalytic reaction, leading to a decrease in activity[...
F. Hypoxic tolerance in air-breathing invertebrates. Respir. Physiol. Neurobiol. 141, 229–242 (2004). CAS PubMed Google Scholar Aragones, J. et al. Deficiency or inhibition of oxygen sensor Phd1 induces hypoxia tolerance by reprogramming basal metabolism. Nature Genet. 40, 170–180 (2008)...
THE rate of oxygen consumption by a bacterial suspension can be measured by observing the change in concentration of oxygen in the air in contact with the culture or dissolved in the suspension. The rate of consumption is known as the ox... ARTHUR,M Robert - 《Nature》 被引量: 12发表: ...
AshalathaVazhayil, ...NygilThomas, inApplied Surface Science Advances, 2021 Abstract Oxygen evolution reaction(OER) is one of the keyelectrocatalysistechnologies for the development of renewable energy conversion and storage systems like water splitting, metal-air batteries, and fuel cells. For the ...
T Bernard,O Gavarry,S Bermon,MGP Marconnet,G Falgairette 摘要: Relationships between percentage of maximal oxygen consumption ( \(\) ) and percentage of maximal heart rate reserve ( \(\) ) were compared during steady states of exercise (S), transitory states of exercise (T) and a 5-...
The oxygen evolution reaction (OER) is the essential module in energy conversion and storage devices such as electrolyzer, rechargeable metal–air batteries and regenerative fuel cells. The adsorption energy scaling relations between the reaction intermediates, however, impose a large intrinsic overpotential...
The photoelectron spectrum of the anion of the guaninecytosine base apair (GC).− is recorded for the first time. The observed variation in the spectral ... A Szyperska,J Rak,J Leszczynski,... - 《Chemphyschem》 被引量: 23发表: 2010年 Heptamethine cyanine based 64Cu-PET probe PC-...
A novel active ventilatory mechanism of the dorsal air sacs in the abdomen of forager honey bees is described. These air sacs supply the heart with oxygen. During sleep and rest, the air sacs undergo frequent volume changes. The dilation of the air sacs is caused by the activity of hitherto...
Medical Gas Probes for Medical Oxygen Supply Central System, British Std Medical Gas Probes for Hospital Gas System, Medical BS-type gas adaptors for medical bed head units, gas(O2, N2O, Air, CO2, N2, Vacuum) system.In most cases, gas probes are connected to m...