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Decoration of nitrogen vacancies by oxygen atoms has been studied by near-edge x-ray absorption fine structure (NEXAFS) in several boron nitride (BN) structures, including bamboo-like and multi-walled BN nanotubes. Formation of nitrogen vacancies under low-energy ion bombardment reduces oxidation resistance of BN structures and promotes an efficient oxygen-healing mechanism, in full agreement with...
The composition and magnetic properties of Fe/Pt(111) after oxygen exposure were investigated. At room temperature the amount of adsorbed oxygen on the surface increased as oxygen exposure also increased until saturation. For Fe/Pt(111) that were thinner than two monolayers, the oxidative process dominated the initial oxygen exposure. In case of thicker Fe, the physical adsorption was more important...
Partial nitrification to nitrite was reported to be technically feasible and economically favorable, which can be obtained by selectively inhibiting nitrite oxidizing microorganisms through many ways. This paper studied the effect of low DO(dissolved oxygen) concentration and the variation modes of DO on nitritation in SBR The results showed that low DO concentration throughout the SBR cycle led to...
This investigation considers in detail a defect called "silicon substrate damaged defects" and also introduces these defects' forming mechanisms and their root causes. These defects are likely to become increasing important in the future of deep-sub micrometer ULSI's situation. Two conditions typically result in silicon damaged defects during manufacturing processes namely: (1) watermark...
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