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  • 1960-1964  (6)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial & engineering chemistry 52 (1960), S. 79-84 
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 200 (1963), S. 159-160 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The experiments in Newtonian liquids were conducted as before3'4 using single rigid spheres, rods and disks of the same density as the liquids but flowing at particle Reynolds numbers (Rep) between 3104 and 7103 instead of less than 106. The tubular pinch effect previously observed with rigid ...
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 191 (1961), S. 488-488 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have studied the buoyant rise of a drop of water (phase 1) through cinnamaldehyde (phase 2) to a flat phase 1/phase 2 interface, using an interfere -metric method8 to measure the rate of thinning (dh/dt) of the intervening phase-2 film. For drops 650fjL diam., the thinning followed the ...
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 190 (1961), S. 1095-1096 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have conducted similar experiments with single spheres, rods and disks at much lower Reynolds numbers (10~6), and have found that migration of the particles away from the walls occurs only when the particles are deformed in the shear field. The rotation of rigid particles in spherical elliptical ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 184 (1962), S. 80-80 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 195 (1964), S. 138-148 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Die Wirkung der Diffusion aus den Tropfen heraus und in die Tropfen hinein auf ihr Verhalten bei äquatorialer Kollision in laminarer Scherströmung wurde untersucht. Bei Anlegen eines elektrischen Feldes senkrecht zur Fließrichtung verstärkt die Diffusion in undeformierte Tropfen die Koaleszenz, während Diffusion aus den Tropfen heraus sie verhindert. Bei beträchtlicher Auswärtsdiffusion nehmen Tropfen, deren Kollisionswinkel größer als 83° ist, eine stabile Anordnung entgegen den Geschwindigkeitsgradienten für einige Minuten an und rotieren dann als ein dauerhaftes Dublett. Bei Einwärtsdiffusion wird der Abstand der Tropfenzentren längs der Wege der Annäherung erhöht und der scheinbare Kollisionswinkel vermindert. Das Phänomen läßt sich qualitativ auf der Basis einer Oberflächenströmung verursacht durch Konzentrationsgradienten an der Tropfenoberfläche, erklären. Stabile Multipletts werden bei Kollision hochdeformierter Tropfen auf Grund hydrodynamischer Kräfte sowohl mit Einwärtsals auch Auswärtsdiffusion gebildet.
    Notes: Abstract The effects of diffusion out of and into drops undergoing equatorial collision in laminar shear flow were studied. With an electric field perpendicular to the direction of flow, diffusion into undeformed drops enhanced coalescence, while diffusion from the drops inhibited it. With marked outward diffusion, drops having a collision angle greater than 83° assumed a stable alignment in opposition to the velocity gradient for several minutes and then rotated to become a permanent head-on collision doublet. With inward diffusion the separation of drop centers increased along the paths of approach and the apparent angle of collision decreased. The phenomena were explained qualitatively on the basis of surface flow arising from concentration gradients at the drop surfaces. Stable multiplets were formed on collision of highly deformed drops as a result of hydrodynamic forces both with and without diffusion.
    Type of Medium: Electronic Resource
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