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  • Other Sources  (3)
  • 2000-2004  (3)
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  • 1
    Publication Date: 2004-12-03
    Description: The Physics of Hard Sphere Experiment has two incarnations: the first as a scattering and rheology experiment on STS-83 and STS-94 and the second as a microscopy experiment to be performed in the future on LMM on the space station. Here we describe some of the quantitative and qualitative results from previous flights on the dynamics of crystallization in microgravity and especially the observed interaction of growing crystallites in the coexistance regime. To clarify rheological measurements we also present ground based experiments on the low shear rate viscosity and diffusion coefficient of several hard sphere experiments at high volume fraction. We also show how these experiments will be performed with confocal microscopy and laser tweezers in our lab and as preparation for the phAse II experiments on LMM. One of the main aims of the microscopy study will be the control of colloidal samples using an array of applied fields with an eye toward colloidal architectures. Temperature gradients, electric field gradients, laser tweezers and a variety of switchable imposed surface patterns are used toward this control.
    Keywords: Space Processing
    Type: Sixth Microgravity Fluid Physics and Transport Phenomena Conference; Volume 1; 133-160; NASA/CP-2002-211212/VOL1
    Format: text
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  • 2
    Publication Date: 2018-06-06
    Description: We present the results of experimental investigations of gradient driven fluctuations induced in a liquid mixture with a concentration gradient and in a single-component fluid with a temperature gradient. We also describe the experimental apparatus being developed to carry out similar measurement under microgravity conditions.
    Keywords: Physics (General)
    Type: 2004 Photon Correlation and Scattering Conference; 50-51; NASA/CP-2004-213207
    Format: application/pdf
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  • 3
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    Cambridge University Press
    In:  Netherlands Journal of Geosciences - Geologie en Mijnbouw, 81 (2). pp. 217-221.
    Publication Date: 2021-01-07
    Description: Uplift of the Rhenish Massif can be demonstrated by means of the stream-made river terrace system that accompanies the Rhine river and its tributaries along their way through or within this part of the Variscan fold and thrust belt. The height difference between a former valley floor, especially that of the Younger ‘Hauptterrasse’ (Main Terrace), and the recent one allows to quantify the uplift by the amount of downcutting erosion. The uplift velocity increased just after the BRUNHES / MATUYAMA boundary, i.e. about 0.8 Ma B.R Since that time, a domal uplift of more than 250 m is documented in the eastern Hunsriick and in the south-eastern Eifel. The area of this maximum height anomaly is situated just between the East-and West-Eifel Quaternary volcanic districts. Thus, causal connections are supposed. The domai uplift is affected by normal faulting partly inherited since Tertiary rifting.
    Type: Article , PeerReviewed
    Format: text
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