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Shields Diagram and the Incipient Motion of Microplastic Particles

Goral, Koray Deniz; Guler, Hasan Gokhan; Larsen, Bjarke Eltard; Carstensen, Stefan; Christensen, Erik Damgaard; Kerpen, Nils B. B.; Schlurmann, Torsten; Fuhrman, David R. R.


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        "name": "Goral, Koray Deniz"
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      {
        "name": "Guler, Hasan Gokhan"
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        "affiliation": "Tech Univ Denmark, Dept Civil & Mech Engn, DK-2800 Lyngby, Denmark", 
        "name": "Larsen, Bjarke Eltard"
      }, 
      {
        "affiliation": "Tech Univ Denmark, Dept Civil & Mech Engn, DK-2800 Lyngby, Denmark", 
        "name": "Carstensen, Stefan"
      }, 
      {
        "affiliation": "Tech Univ Denmark, Dept Civil & Mech Engn, DK-2800 Lyngby, Denmark", 
        "name": "Christensen, Erik Damgaard"
      }, 
      {
        "affiliation": "Leibniz Univ Hannover, Ludwig Franzius Inst Hydraul Estuarine & Coastal E, D-30167 Hannover, Germany", 
        "name": "Kerpen, Nils B. B."
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      {
        "affiliation": "Leibniz Univ Hannover, Ludwig Franzius Inst Hydraul Estuarine & Coastal E, D-30167 Hannover, Germany", 
        "name": "Schlurmann, Torsten"
      }, 
      {
        "affiliation": "Tech Univ Denmark, Dept Civil & Mech Engn, DK-2800 Lyngby, Denmark", 
        "name": "Fuhrman, David R. R."
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    ], 
    "description": "<p>This researchnewly shows that, when suitably generalized,the Shields diagram (as commonly used for sediments) can predict incipientmotion thresholds for both native sediments and foreign (microplastic)particles alike.</p>\n<p>Incipient motion conditions for 57 regular (spheres,cylinders,disks, square plates, cubes, square prisms, rectangular prisms, tetrahedrons,and fibers) and eight irregular microplastic particle groups, havingvarious sizes and densities, are investigated in a circular flume.The present data set is combined with additional data from the literatureand systematically analyzed. A new framework is developed for predictingincipient motion conditions for foreign particles, accounting forvariations in static friction, hydraulic roughness, and hiding-exposureeffects. Via this framework, incipient motion conditions for microplasticparticles lying on a sediment bed are, for the first time, reconciledwith the classical Shields diagram.</p>", 
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    "title": "Shields Diagram and the Incipient Motion of Microplastic Particles"
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