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Scheibler Nihoul L. Grünhut Herzfeld C. Killing Märcker Ost P. Dobriner Prager Farnsteiner und R. Hefelmann 《Fresenius' Journal of Analytical Chemistry》1897,36(1):48-51
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E. Nihoul G. Vortmann C. Meineke G. Lunge P. Naef Th. Salzer E. Kock W. Younger L. M. Norton M. Rosenbaum W. Spring Ed. Bourgeois N. Sokolow P. Maltschewski R. Otto C. Friedheim Fr. Stolba G. Linossier M. Lignon W. Gathorne Young R. Kayser H. Offermann A. Carnot V. Gasselin Th Petersen 《Analytical and bioanalytical chemistry》1896,35(1):200-211
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On high resolution structure images, the existence of a superperiod has been observed, linked with the apparition of extraspots in the diffraction diagram. The specimen (B-Sm2O3) can be described as composed of layers of thickness 6 Å, nearly perpendicular to the incident electron beam. These layers are of 3 different kinds. We have shown that the apparition of the superperiod can be linked with steps of height 6 or 12 Å (i.e. 1 or 2 layers): computed images, using this hypothesis exhibit the observed superperiod, even for thicknesses around 230 Å. This allows atomic steps to be imaged with a high resolution structure image. 相似文献
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S. Giorgio G. Nihoul J. Urban H. Sack-Kongehl 《Zeitschrift für Physik D Atoms, Molecules and Clusters》1992,24(4):395-400
Gold particles produced by the inert gas aggregation technique were observed in HREM. Among the smallest ones (1–3 nm), four structures were recognized: decahedra, icosahedra, cuboctahedra and body-centered tetragonal or orthorhombic structures. The observation of the latter structure for Au clusters is reported for the first time. By improved image processing, their morphologies and defects were precisely determined. Most of them contained small distortions compared to the ideal structures. 相似文献
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Jacques C. J. Nihoul 《Applied Scientific Research》1965,11(1):412-417
Summary An investigation is presented of the flow of a viscous, conducting fluid between two plane walls, which rotate around a common axis towards each other. The flow is considered to be under the influence of a magnetic field, set up by a line-current along the axis of rotation.Under the assumption of low hydrodynamic and magnetic Reynolds-number, expressions are given for the velocity and the pressure gradient.At present at Brussels: Ecole Royale Militaire, Physique des Plasmas. 相似文献
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Jacques C.J. Nihoul 《Applied Mathematical Modelling》1976,1(1):3-8
The essential elements of a general interdisciplinary marine model are reviewed; state variables are identified, evolution equations are discussed and major parameters are indicated. The methods of reducing the size of the model by aggregation in state space (reduction of scope) or averaging in physical space (reduction of support) are revised with particular emphasis on the associated parameterization of the non-linear effects. Examples of application are given in illustration and comparison of the models' predictions with observations indicates the degree of accuracy and the limits of viability of present state marine modelling. 相似文献
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Abstract A resistometric study at 4.2 °K of the high-temperature recovery spectrum of neutron-irradiated molybdenum as a function of fast fluence and of cold-worked molybdenum as a function of the heating program, yields evidence against vacancy migration in the 0.31 Tm stage for VIa b.c.c. metals. 相似文献
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