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Träfflista för sökning "WFRF:(Norin A) srt2:(2000-2004)"

Sökning: WFRF:(Norin A) > (2000-2004)

  • Resultat 1-16 av 16
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  • Högberg, Hans, et al. (författare)
  • Deposition of transition metal carbides and superlattices using C-60 as carbon source
  • 2000
  • Ingår i: JOURNAL OF THE ELECTROCHEMICAL SOCIETY. - 0013-4651. ; 147:9, s. 3361-3369
  • Tidskriftsartikel (refereegranskat)abstract
    • Thin films of TiC, VC, and NbC have been deposited on MgO(001) by coevaporation of the metals and C-60 It was found that these metals induced a decomposition of the C-60 molecule and that carbide films can be formed at a temperature as low as 100 degrees
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  • Merdji, H., et al. (författare)
  • Coherence properties of high-order harmonics : Application to high-density laser-plasma diagnostic
  • 2000
  • Ingår i: Laser and Particle Beams. - 0263-0346. ; 18:3, s. 495-502
  • Tidskriftsartikel (refereegranskat)abstract
    • We present two interferometry schemes in the extreme ultraviolet, based on either the wave-front division of a unique harmonic beam (1st scheme) or two spatially separated, phase-locked harmonic sources (2nd scheme). In the first scheme using a Fresnel bimirror interferometer, we measure the degree of spatial coherence of the 13 th harmonic generated in xenon, as a function of different parameters. A high degree of coherence, larger than 0.5, is found for the best conditions in almost the full section of the beam. Then, we demonstrate that the second scheme can be used for interferometry measurements with an ultrahigh time resolution. The 11th harmonic is used to study the spatial variation of the electron density of a laser-produced plasma. Electronic densities higher than 2.10 20 cm -3 are measured.
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  • Mårtensson, Olof, et al. (författare)
  • Effects of fermented, ropy, non-dairy, oat-based products on serum lipids and the faecal excretion of cholesterol and short chain fatty acids in germfree and conventional rats
  • 2002
  • Ingår i: Nutrition Research. - 0271-5317. ; 22:12, s. 1461-1473
  • Tidskriftsartikel (refereegranskat)abstract
    • Three fermented, ropy, non-dairy, oat-based products were evaluated for their effect on serum lipids, faecal cholesterol and faecal short chain fatty. acids in germfree and conventional rats. Three different exopolysaccharide (EPS) producing lactic acid bacteria strains were used to ferment the non-dairy oat-base (Adavena(R) G40) (Ceba Foods AB, Lund; Sweden). Two commercial non-dairy products based on oats (Mill Milk(TM)) (Ceba Foods AB, Lund, Sweden) and rice (Rice Dream(R)) (Imagine Foods, London, UK) were used as non-ropy and unfermented controls. All the standardized feeds were sterilized before being fed to the animals. Adult, germfree-and conventional AGUS rats, were fed the above sterile diets ad libitum for 21 days. Blood samples and faecal samples were collected and the animals' weight gain was monitored throughout the study. No significant change in serum lipids or faecal excretion of cholesterol was observed between the groups on the different diets. A difference in faecal SCFA pattern was observed in conventional rats fed on the oat-based diets in comparison. to the group fed on the rice-based diet. More evidence is needed to support the effect of fermented, ropy, oat-based products and their potential effect on serum lipids, faecal cholesterol/coprostanol levels and amounts of short chain fatty acids.
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  • Sorensen, SL, et al. (författare)
  • Femtosecond pump-probe photoelectron spectroscopy of predissociative Rydberg states in acetylene
  • 2000
  • Ingår i: JOURNAL OF CHEMICAL PHYSICS. - : AMER INST PHYSICS. - 0021-9606. ; 112:18, s. 8038-8042 Language: English
  • Tidskriftsartikel (refereegranskat)abstract
    • We employ a pump-probe approach to molecular photoionization to study fast dissociation of Rydberg states in acetylene. By using time-resolved photoelectron spectroscopy to study the electronic state of the resulting ions we are able to monitor the system
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  • Sorensen, S. L., et al. (författare)
  • Femtosecond pump-probe photoelectron spectroscopy of predissociative Rydberg states in acetylene
  • 2000
  • Ingår i: Journal of Chemical Physics. - : AIP Publishing. - 0021-9606 .- 1089-7690. ; 112:18, s. 8038-8042
  • Tidskriftsartikel (refereegranskat)abstract
    • We employ a pump-probe approach to molecular photoionization to study fast dissociation of Rydberg states in acetylene. By using time-resolved photoelectron spectroscopy to study the electronic state of the resulting ions we are able to monitor the system continuously during dissociation or rearrangement. We find that the predissociative lifetime for the 3R‴ (v′2 = 1) Rydberg state is about 150 fs. We demonstrate a powerful new technique using time-correlated femtosecond harmonic generation and laser light pulses to study the time evolution of ultrafast dynamic processes in molecules.
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  • Resultat 1-16 av 16

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