Zobrazeno 1 - 10
of 28
pro vyhledávání: '"H. Den Daas"'
Publikováno v:
Surface Science. 306:1-9
The interaction of CO with Cu(100)Fe surfaces containing 0–1.7 ML of Fe was studied with ellipsometry and Auger electron spectroscopy. Only reversible molecular adsorption was observed. Dissociation was not observed at temperatures up to 620 K a
Publikováno v:
Applied Surface Science. 68:557-563
The interaction of oxidised Cu(100)-Fe surfaces containing 0.1–2.0 ML of iron with H2 and CO has been studied. Surfaces containing more than 0.8 or 0.6 ML of iron which are oxidised at 300 K are inert to respectively CO and H2 at 630 K and pressure
Publikováno v:
Surface Science. 290:26-34
The peak shape of the iron M 2,3 VV Auger peak during the oxidation of one monolayer of iron on Cu(100) was studied. Peak shape analysis indicated that all iron is oxidised to γ-Fe 2 O 3 before oxygen adsorbs on the Cu(100) surface. The oxidation of
Publikováno v:
Surface and Interface Analysis. 18:397-402
The background subtraction method for undifferentiated Auger spectra proposed by Peacock is shown to be reliable for the low-energy Fe and Cu MVV peaks. This is illustrated by the good results obtained for spectra of clean and oxidized Cu(100), Cu(10
Publikováno v:
Journal of andrology. 21(2)
An immunochemical assay has been developed to detect oxidative damage in bovine sperm DNA. Sperm DNA contains a large amount of oxidative damage as a result of exposure to exogenous agents, but damage also can caused by normal metabolic processes and
Publikováno v:
Journal of andrology. 18(6)
A possible decline in sperm counts in men and its potential relation to exposure to environmental contaminants are subjects of a broad discussion. Whereas data for human research in this area are limited, records over prolonged periods on sperm count
The interaction between oxygen and the Fe/Cu(100) interface has been studied as a function of both the iron thickness and the oxygen exposure by means of UPS and XPS spectroscopies. A careful analysis of the Fe 2p spectra has shown that upon exposing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79cbf2ef608745e10b6d258e835c310c
http://hdl.handle.net/11697/15453
http://hdl.handle.net/11697/15453
The oxidation of Cu(100)Fe surfaces was studied using XPS. Surfaces containing 0–10 ML of iron were oxidised at room temperature exposing 2 Pa · s of oxygen. For all surfaces evidence for Fe2O3 was found. For surfaces containing more than 2 ML
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1059a433779f5089fe3ef78f4340118d
http://hdl.handle.net/11697/925
http://hdl.handle.net/11697/925
Autor:
S. Di Nardo, P. Picozzi, Luca Lozzi, M. De Crescenzi, Sandro Santucci, H. den Daas, Maurizio Passacantando
The electronic and structural properties of very thin iron films deposited in ultrahigh vacuum on polycrystalline copper have been studied by x-ray photoemission and Auger spectroscopies and the extended energy loss fine structure technique beyong th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d12b76810069a0b4860b5a73a15828d
http://hdl.handle.net/11697/3727
http://hdl.handle.net/11697/3727
Publikováno v:
Journal of andrology. 12(2)
A rapid, accurate and precise method for simultaneous determination of acrosomal status and viability of bull spermatozoa is introduced and evaluated. The method involves fixation of semen with glutaraldehyde and subsequent addition of the fluorescen