Showing 181 - 200 results of 3,780 for search '"helium"', query time: 0.13s Refine Results
  1. 181

    Some properties of liquid helium at very low temperatures by Challis, L

    Published 1957
    “…We suggest that this theory should be modified in some way to account for the dense adsorbed layer of helium at this interface; the thickness of the layer is of the same order of magnitude as that of the dominant wavelength of the sound radiated into the helium and it would appear that this invalidates the assumption that the helium is a continuous medium of constant density right up to the interface. …”
    Thesis
  2. 182

    Excited helium under high pressures in the bulk and in nanobubbles by Pyper, N, Naginey, T, Nellist, P, Whelan, C

    Published 2017
    “…We systematically investigate the effects of intense pressures on the excitation energies of helium trapped in bubbles in order to deepen our understanding of the fundamental physics of atoms in extreme conditions. …”
    Journal article
  3. 183

    The anomalous intensities of helium lines in a coronal hole by Jordan, C, Macpherson, K, Smith, G

    Published 2001
    “…The intensities of the helium lines are observed to be lower in coronal holes than in the quiet Sun. …”
    Journal article
  4. 184

    The association of hydrogen with nanometre bubbles of helium implanted into zirconium by Blackmur, MS, Dumbill, S, Maclaren, I, Hernandez-Maldonado, D, Styman, PD, Gass, M, Nicholls, RJ, Hyde, JM, Ramasse, QM, Annand, KJ, Smith, JS, Gotham, N

    Published 2018
    “…Electron energy-loss spectroscopy (EELS) is used to investigate the association of hydrogen with helium bubbles in zirconium. Conventional EELS data yield a signal at 13.5 eV (similar to the hydrogen K-edge, 13 eV), which is spatially distributed around the peripheries of bubbles and may correlate with the concentration of hydrogen/deuterium in the material. …”
    Journal article
  5. 185
  6. 186

    Orientation-dependent indentation response of helium-implanted tungsten by Das, S, Yu, H, Tarleton, E, Hofmann, F

    Published 2019
    “…The results suggest that the mechanism governing the interaction of helium-induced defects with glide dislocations is orientation independent. …”
    Journal article
  7. 187

    A short review on membranes for helium separation and purifications by Ngadiman, N. H. A., Othman, M. H. D.

    Published 2019
    “…Preponderance of membranes have Helium (He) selectivity which causes their gas separation has a potential for helium revival and purification. …”
    Article
  8. 188
  9. 189
  10. 190

    Parametric sensitivity analysis for the helium dimers on a model potential by Nelson Henrique Teixeira Lemes, Vitor D. Viterbo, Rita C. O. Sebastião, João P. Braga

    Published 2012-01-01
    “…Potential parameters sensitivity analysis for helium unlike molecules, HeNe, HeAr, HeKr and HeXe is the subject of this work. …”
    Get full text
    Article
  11. 191
  12. 192

    The influence of metallicity on helium and CO core masses in massive stars by Petrović Jelena

    Published 2023-01-01
    “…We confirm the CO/helium core mass ratio to be larger in binary systems than for single stars.…”
    Get full text
    Article
  13. 193
  14. 194

    Study of Helium Swelling and Embrittlement Mechanisms in SiC Ceramics by Kymbat M. Tynyshbayeva, Kayrat K. Kadyrzhanov, Artem L. Kozlovskiy, Yerzhan I. Kuldeyev, Vladimir Uglov, Maxim V. Zdorovets

    Published 2022-02-01
    “…It has been established that the greatest changes in the strength properties are associated with the dominance of the crystal lattice swelling effect in the structure due to an increase in the concentration of implanted helium, and its further agglomeration with the formation of vacancy complexes of the He-V type. …”
    Get full text
    Article
  15. 195

    Asteroseismic estimate of helium abundance of 16 Cyg A, B by Verma Kuldeep, Faria João P., Antia H. M., Basu Sarbani, Mazumdar Anwesh, Monteiro Mário J. P. F. G., Appourchaux Thierry, Chaplin William J., García Rafael A., Metcalfe Travis S.

    Published 2015-01-01
    “…The helium ionization zone in a star leaves a characteristic signature on its oscillation frequencies, which can be used to estimate the helium content in the envelope of the star. …”
    Get full text
    Article
  16. 196

    Coupling an Ensemble of Electrons on Superfluid Helium to a Superconducting Circuit by Ge Yang, A. Fragner, G. Koolstra, L. Ocola, D. A. Czaplewski, R. J. Schoelkopf, D. I. Schuster

    Published 2016-03-01
    “…The quantized lateral motional states and the spin states of electrons trapped on the surface of superfluid helium have been proposed as basic building blocks of a scalable quantum computer. …”
    Get full text
    Article
  17. 197
  18. 198
  19. 199
  20. 200