Results 211 to 220 of about 861,618 (249)

Oxidations: Partial Oxidations

ChemInform, 2006
AbstractFor Abstract see ChemInform Abstract in Full Text.
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Wear Engineering Oxides/Antiwear Oxides©

Tribology Transactions, 1998
Abstract The tribological behaviour of self-mated ceramic composites, like SiCTiC, Si 3 N 4 TiN and (Ti,Mo)(C,N) + Ni, were characterized under dry sliding friction. The coefficient of friction still remain unchanged on a level known from SiC and Si 3 N 4 ceramics.
M. Woydt, A. Skopp, I. Dörfel, K. Witke
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Oxide-Oxide composites

2006
The need for high temperature, oxidation-resistant materials has driven research into oxide-oxide composites. These materials require a crack deflecting mechanism to prevent brittle failure; both interface coatings and porous matrices have proven successful in providing this function.
Kristin A. Keller, George Jefferson, Ronald J. Kerans   +2 more
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Oxidized lipoproteins and nitric oxide

Current Opinion in Lipidology, 1996
Nitric oxide has an important biological role as endothelium-derived relaxing factor, a key agent in the maintenance of normal vascular tone. It can also suppress lipoprotein oxidation, a potential anti-atherogenic property. However, in arteries subject to hypercholesterolemia or atherosclerosis, whereas nitric oxide synthesis is normal its biological ...
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Oxide Interfaces: Theory of Oxide-Oxide and Oxide-Metal Interfaces

1987
We discuss the prediction of oxide-metal adhesion emphasising those cases where the metal does not react chemically with the oxide. Theoretically, the complications are forbidding, partly because of the chemical and morphological complexity of practical systems, and partly because there are many distinct contributions to adhesion.
A. M. Stoneham, P. W. Tasker
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Oxidation on Metal Oxide Surfaces

1968
The redn. of transition metal oxides and of SnO2 + Sb2O3 by 1-butene and butadiene was investigated. A single parameter Qo, defined as the heat necessary to dissociate 0.5 O2 from the oxide, detd. the type of reaction. Starting from Q0 = 17 (MnO2) and proceeding to Q0 = 70 (SnO2), the redn. produces; CO2 -> (oxygenated products) -> butadiene ->
Simons, T.G.J., Verheijen, E.J.M., Batist, P.A., Schuit, G.C.A.   +3 more
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Oxidant signals and oxidative stress

Current Opinion in Cell Biology, 2003
Although oxidants clearly possess the capacity to behave in a random and destructive fashion, growing evidence suggests that in many instances the production of reactive oxygen species is tightly regulated and their downstream targets exquisitely specific.
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Oxidative Stress

Annual Review of Biochemistry, 2017
Oxidative stress is two sided: Whereas excessive oxidant challenge causes damage to biomolecules, maintenance of a physiological level of oxidant challenge, termed oxidative eustress, is essential for governing life processes through redox signaling.
Helmut, Sies, Carsten, Berndt, Dean P, Jones   +2 more
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Modelling oxide–oxide and oxide–metal interfaces

J. Chem. Soc., Faraday Trans., 1990
Recent years have seen a large increase in interest in interfaces of ionic and ceramic crystals and an appreciation of their importance in determining many of the properties of materials. Static-lattice calculations have made a major impact on the interpretation of the role of point defects in controlling observed behaviour in the bulk and are now ...
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Protein Oxidation

Annals of the New York Academy of Sciences, 2000
Abstract: The oxidative modification of proteins by reactive species, especially reactive oxygen species, is implicated in the etiology or progression of a panoply of disorders and diseases. These reactive species form through a large number of physiological and non‐physiological reactions.
E R, Stadtman, R L, Levine
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