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Volumn 17, Issue 7, 2005, Pages 1-14

The flow of a very concentrated slurry in a parallel-plate device: Influence of gravity

Author keywords

[No Author keywords available]

Indexed keywords

GRANULAR MATERIALS; MATHEMATICAL MODELS; PLATES (STRUCTURAL COMPONENTS); SHEAR STRESS; SLURRIES; TENSORS; VISCOSITY;

EID: 23044485968     PISSN: 10706631     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.1949607     Document Type: Article
Times cited : (32)

References (45)
  • 1
    • 0022490799 scopus 로고
    • "Viscous resuspension"
    • CESCAC 0009-2509 10.1016/0009-2509(86)85225-3
    • D. Leighton and A. Acrivos, "Viscous resuspension," Chem. Eng. Sci.CESCAC0009-250910.1016/0009-2509(86)85225-3 41, 1377 (1986).
    • (1986) Chem. Eng. Sci. , vol.41 , pp. 1377
    • Leighton, D.1    Acrivos, A.2
  • 2
    • 0025458963 scopus 로고
    • "Viscous resuspension of a sediment within a laminar and stratified flow"
    • IJMFBP 0301-9322 10.10/0301-9322(90)90017-D
    • U. Schaflinger, A. Acrivos, and B. Zhang, "Viscous resuspension of a sediment within a laminar and stratified flow," Int. J. Multiphase FlowIJMFBP0301-932210.1016/0301-9322(90)90017-D 16, 567 (1990).
    • (1990) Int. J. Multiphase Flow , vol.16 , pp. 567
    • Schaflinger, U.1    Acrivos, A.2    Zhang, B.3
  • 3
    • 0026191793 scopus 로고
    • "Dynamic viscous resuspension"
    • IJMFBP 0301-9322 10.1016/0301-9322(91)90043-3
    • B. K. Chapman and D. T. Leighton, "Dynamic viscous resuspension," Int. J. Multiphase FlowIJMFBP0301-932210.1016/ 0301-9322(91)90043-3 17, 469 (1991).
    • (1991) Int. J. Multiphase Flow , vol.17 , pp. 469
    • Chapman, B.K.1    Leighton, D.T.2
  • 4
    • 0027676140 scopus 로고
    • "Shear-induced resuspension in a Couette device"
    • IJMFBP 0301-9322 10.1016/0301-9322(93)90043-T
    • A. Acrivos, R. Mauri, and X. Fan, "Shear-induced resuspension in a Couette device," Int. J. Multiphase FlowIJMFBP0301-932210.1016/ 0301-9322(93)90043-T 19, 797 (1993).
    • (1993) Int. J. Multiphase Flow , vol.19 , pp. 797
    • Acrivos, A.1    Mauri, R.2    Fan, X.3
  • 5
    • 0028513492 scopus 로고
    • "On the measurement of the relative viscosity of suspensions"
    • JORHD2 0148-6055 10.1122/1.550544
    • A. Acrivos, X. Fan, and R. Mauri, "On the measurement of the relative viscosity of suspensions," J. Rheol.JORHD20148-605510.1122/ 1.550544 38, 1285 (1994).
    • (1994) J. Rheol. , vol.38 , pp. 1285
    • Acrivos, A.1    Fan, X.2    Mauri, R.3
  • 6
    • 0029347297 scopus 로고
    • "An experimental study of viscous resuspension in a pressure-driven plane channel flow"
    • IJMFBP 0301-9322 10.1016/0301-9322(95)00013-N
    • U. Schaflinger, A. Acrivos, and H. Stibi, "An experimental study of viscous resuspension in a pressure-driven plane channel flow," Int. J. Multiphase FlowIJMFBP0301-932210.1016/0301-9322(95)00013-N 21, 693 (1995).
    • (1995) Int. J. Multiphase Flow , vol.21 , pp. 693
    • Schaflinger, U.1    Acrivos, A.2    Stibi, H.3
  • 7
    • 0032007242 scopus 로고    scopus 로고
    • "Pressure driven flow of a suspension: Buoyancy effects"
    • IJMFBP 0301-9322 10.1016/S0301-9322(97)00035-9
    • J. F. Morris and J. F. Brady, "Pressure driven flow of a suspension: Buoyancy effects," Int. J. Multiphase FlowIJMFBP0301-932210.1016/S0301-9322(97)00035-9 24, 105 (1998).
    • (1998) Int. Multiphase Flow , vol.24 , pp. 105
    • Morris, J.F.1    Brady, J.F.2
  • 8
    • 2142718427 scopus 로고    scopus 로고
    • "The effect of interfacial instabilities in a stratified resuspension flow on the pressure loss"
    • PHFLE6 70-6631.63/1.869797
    • T. Loimer and U. Schaflinger, "The effect of interfacial instabilities in a stratified resuspension flow on the pressure loss," Phys. FluidsPHFLE61070-663110.1063/1.869797 10, 2737 (1998).
    • (1998) Phys. Fluids , vol.10 , pp. 2737
    • Loimer, T.1    Schaflinger, U.2
  • 9
    • 0037050982 scopus 로고    scopus 로고
    • "Instability of a bed of particles sheared by a viscous flow"
    • JFLSA7 0022-1120 10.1017/S0022112001006747
    • F. Charru and H. Mouilleron-Arnould, "Instability of a bed of particles sheared by a viscous flow," J. Fluid Mech.JFLSA70022-112010.1017/S0022112001006747 452, 303 (2002).
    • (2002) J. Fluid Mech. , vol.452 , pp. 303
    • Charru, F.1    Mouilleron-Arnould, H.2
  • 10
    • 0035518175 scopus 로고    scopus 로고
    • "Role of lubricated contacts in concentrated polydisperse suspensions"
    • JORHD2 0148-6055 10.1122/1.1413504
    • C. Ancey, "Role of lubricated contacts in concentrated polydisperse suspensions," J. Rheol.JORHD20148-605510.1122/1.1413504 45, 1421 (2001).
    • (2001) J. Rheol. , vol.45 , pp. 1421
    • Ancey, C.1
  • 11
    • 14544306929 scopus 로고    scopus 로고
    • "Fluid mechanics and rheology of dense suspensions"
    • ARVFA3 0066-4189 10.1146/annurev.fluid.36.050802.122132
    • J. J. Stickel and R. L. Powell, "Fluid mechanics and rheology of dense suspensions," Annu. Rev. Fluid Mech.ARVFA30066-418910.1146/ annurev.fluid.36.050802.122132 37, 129 (2005).
    • (2005) Annu. Rev. Fluid Mech. , vol.37 , pp. 129
    • Stickel, J.J.1    Powell, R.L.2
  • 12
    • 0028501577 scopus 로고
    • "Pressure-driven flow of suspensions: Simulation and theory"
    • JFLSA7 0022-1120
    • P. R. Nott and J. F. Brady, "Pressure-driven flow of suspensions: simulation and theory," J. Fluid Mech.JFLSA70022-1120 275, 157 (1994).
    • (1994) Fluid Mech. , vol.275 , pp. 157
    • Nott, P.R.1    Brady, J.F.2
  • 13
    • 0001319579 scopus 로고    scopus 로고
    • "Curvilinear flows of noncolloidal suspensions: The role of normal stresses"
    • JORHD2 0148-6055 10.1122/1.551021
    • J. F. Morris and F. Boulay, "Curvilinear flows of noncolloidal suspensions: The role of normal stresses," J. Rheol.JORHD20148-605510.1122/1.551021 43, 1213 (1999).
    • (1999) Rheol. , vol.43 , pp. 1213
    • Morris, J.F.1    Boulay, F.2
  • 14
    • 0000290178 scopus 로고    scopus 로고
    • "The characterization of the total stress of concentrated suspensions of noncolloidal spheres in Newtonian fluids"
    • JORHD2 0148-6055 10.1122/1.551083
    • I. E. Zarraga, D. A. Hill, and D. T. Leighton, "The characterization of the total stress of concentrated suspensions of noncolloidal spheres in Newtonian fluids," J. Rheol.JORHD20148-605510.1122/1.551083 44, 185 (2000).
    • (2000) J. Rheol. , vol.44 , pp. 185
    • Zarraga, I.E.1    Hill, D.A.2    Leighton, D.T.3
  • 15
    • 0001655886 scopus 로고
    • "Random loose packings of uniform spheres and the dilatancy onset"
    • PRLTAO 0031-9007 10.1103/PhysRevLett
    • G. Y. Onoda and E. G. Liniger, "Random loose packings of uniform spheres and the dilatancy onset," Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.64.2727 64, 2727 (1990).
    • (1990) Phys. Rev. Lett. , vol.64 , pp. 2727
    • Onoda, G.Y.1    Liniger, E.G.2
  • 16
    • 1842843007 scopus 로고    scopus 로고
    • "Flow and segregation in sheared granular slurries"
    • EULEEJ 0295-5075 10.1209/epl/i2003-10191-2
    • C. Barentin, E. Azanza, and B. Pouligny, "Flow and segregation in sheared granular slurries," Europhys. Lett.EULEEJ0295-507510.1209/ epl/i2003-10191-2 66, 139 (2004).
    • (2004) Europhys. Lett. , vol.66 , pp. 139
    • Barentin, C.1    Azanza, E.2    Pouligny, B.3
  • 17
    • 0000058528 scopus 로고    scopus 로고
    • "Scaling laws in granular flows down rough inclined planes"
    • PHFLE6 1070-6631 10.1063/1.869928
    • O. Pouliquen, "Scaling laws in granular flows down rough inclined planes," Phys. FluidsPHFLE61070-663110.1063/1.869928 11, 542 (1999).
    • (1999) Phys. Fluids , vol.11 , pp. 542
    • Pouliquen, O.1
  • 18
    • 12044260218 scopus 로고
    • "Particle-imaging technique for experimental fluid mechanics"
    • ARVFA3 0066-4189 10.1146/annurev.fluid..1
    • R. J. Adrian, "Particle-imaging technique for experimental fluid mechanics," Annu. Rev. Fluid Mech.ARVFA30066-418910.1146/ annurev.fluid.23.1.261 23, 261 (1991).
    • (1991) Annu. Rev. Fluid Mech. , vol.23 , pp. 261
    • Adrian, R.J.1
  • 19
    • 0001267619 scopus 로고    scopus 로고
    • "Particle migration in a Couette apparatus: Experiment and modeling"
    • JORHD2 0148-6055 10.1122/1.550954
    • N. Tetlow, A. L. Graham, M. S. Ingber, S. R. Subia, L. A. Mondy, and S. A. Altobelli, "Particle migration in a Couette apparatus: Experiment and modeling," J. Rheol.JORHD20148-605510.1122/1.550954 42, 307 (1998).
    • (1998) J. Rheol. , vol.42 , pp. 307
    • Tetlow, N.1    Graham, A.L.2    Ingber, M.S.3    Subia, S.R.4    Mondy, L.A.5    Altobelli, S.A.6
  • 20
    • 0034250891 scopus 로고    scopus 로고
    • "Particle dynamics in sheared granular matter"
    • PRLTAO 0031-9007 10.1103/PhysRevLett
    • W. Losert, L. Bocquet, T. C. Lubensky, and J. P. Gollub, "Particle dynamics in sheared granular matter," Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.85.1428 85, 1428 (2000).
    • (2000) Phys. Rev. Lett. , vol.85 , pp. 1428
    • Losert, W.1    Bocquet, L.2    Lubensky, T.C.3    Gollub, J.P.4
  • 22
    • 0019283709 scopus 로고
    • "Shear induced structure in a concentrated suspension of solid spheres"
    • JORHD2 0148-6055 10.1122/1.549584
    • F. Gadala-Maria and A. Acrivos, "Shear induced structure in a concentrated suspension of solid spheres," J. Rheol.JORHD20148-605510.1122/1.549584 24, 799 (1980).
    • (1980) J. Rheol. , vol.24 , pp. 799
    • Gadala-Maria, F.1    Acrivos, A.2
  • 23
    • 0030111553 scopus 로고    scopus 로고
    • "Stokesian dynamics simulation of Brownian suspensions"
    • JFLSA7 0022-1120
    • T. N. Phung, J. F. Brady, and G. Bossis, "Stokesian dynamics simulation of Brownian suspensions," J. Fluid Mech.JFLSA70022-1120 313, 181 (1996).
    • (1996) Fluid Mech. , vol.313 , pp. 181
    • Phung, T.N.1    Brady, J.F.2    Bossis, G.3
  • 24
    • 0031246912 scopus 로고    scopus 로고
    • "Microstructure of strongly sheared suspensions and its impact on rheology and diffusion"
    • JFLSA7 0022-1120 10.1017/S0022112097006320
    • J. F. Brady and J. F. Morris, "Microstructure of strongly sheared suspensions and its impact on rheology and diffusion," J. Fluid Mech.JFLSA70022-112010.1017/S0022112097006320 348, 103 (1997).
    • (1997) Fluid Mech. , vol.348 , pp. 103
    • Brady, J.F.1    Morris, J.F.2
  • 25
    • 11344275967 scopus 로고    scopus 로고
    • "On dense granular flows"
    • GDR MiDi, EPJSFH 1292-8941
    • GDR MiDi, "On dense granular flows," Eur. Phys. J. EEPJSFH1292-8941 14, 341 (2004).
    • (2004) Eur. Phys. J. E , vol.14 , pp. 341
  • 26
    • 18044381271 scopus 로고    scopus 로고
    • "Stationary shear flows of dense granular materials: A tentative continuum modeling"
    • EBJOE8 0175-7571
    • G. Josserand, P. Y. Lagrée, and D. Lhuillier, "Stationary shear flows of dense granular materials: A tentative continuum modeling," Eur. Biophys. J.EBJOE80175-7571 14, 127 (2004).
    • (2004) Eur. Biophys. J. , vol.14 , pp. 127
    • Josserand, G.1    Lagrée, P.Y.2    Lhuillier, D.3
  • 27
    • 0029390827 scopus 로고
    • "Rheology and structure of concentrated suspensions of hard spheres. Shear-induced particle migration"
    • JPAHER 11-4312 10.101/jp2:201
    • P. Mills and P. Snabre, "Rheology and structure of concentrated suspensions of hard spheres. Shear-induced particle migration," J. Phys. IIJPAHER1155-431210.1051/jp2:1995201 5, 1597 (1995).
    • (1995) J. Phys. II , vol.5 , pp. 197
    • Mills, P.1    Snabre, P.2
  • 28
    • 0001231466 scopus 로고
    • "Ecoulements viscométriques de polymères enchevêtrés"
    • CHDBAN 0366-6077
    • P. G. de Gennes, "Ecoulements viscométriques de polymères enchevêtrés," C. R. Seances Acad. Sci., Ser. BCHDBAN0366-6077 288, 219 (1979).
    • (1979) C. R. Seances Acad. Sci., Ser. B , vol.288 , pp. 219
    • de Gennes, P.G.1
  • 29
    • 0141792538 scopus 로고    scopus 로고
    • "Effective slip in pressure-driven Stokes flow"
    • JFLSA7 0022-1120 10.1017/S002211004695
    • E. Lauga and H. A. Stone, "Effective slip in pressure-driven Stokes flow," J. Fluid Mech.JFLSA70022-112010.1017/S0022112003004695 489, 55 (2003).
    • (2003) J. Fluid Mech. , vol.489 , pp. 55
    • Lauga, E.1    Stone, H.A.2
  • 30
    • 12344276693 scopus 로고    scopus 로고
    • "Dynamics of simple liquids at heterogeneous surfaces: Molecular dynamics simulations and hydrodynamic description"
    • EPJSFH 1292-8941 10.1140/epje/i-10061-9
    • C. Cottin-Bizonne, C. Barentin, E. Charlaix, L. Bocquet, and J.-L. Barrat, "Dynamics of simple liquids at heterogeneous surfaces: Molecular dynamics simulations and hydrodynamic description," Eur. Phys. J. EEPJSFH1292-894110.1140/epje/i2004-10061-9 15, 427 (2004).
    • (2004) Eur. Phys. J. E , vol.15 , pp. 427
    • Cottin-Bizonne, C.1    Barentin, C.2    Charlaix, E.3    Bocquet, L.4    Barrat, J.-L.5
  • 31
    • 49949140804 scopus 로고
    • "On the viscosity of a concentrated suspension of solid spheres"
    • CESCAC 0009-2509 10.1016/0009-2509(67)80149-0
    • N. A. Frankel and A. Acrivos, "On the viscosity of a concentrated suspension of solid spheres," Chem. Eng. Sci.CESCAC0009-250910.1016/ 0009-2509(67)80149-0 22, 847 (1967).
    • (1967) Chem. Eng. Sci. , vol.22 , pp. 847
    • Frankel, N.A.1    Acrivos, A.2
  • 32
    • 0001647254 scopus 로고
    • "The rheological behavior of concentrated colloidal dispersions"
    • JCPSA6 0021-9606 10.1063/1.465782
    • J. F. Brady, "The rheological behavior of concentrated colloidal dispersions," J. Chem. Phys.JCPSA60021-960610.1063/1.465782 99, 567 (1993).
    • (1993) Chem. Phys. , vol.99 , pp. 567
    • Brady, J.F.1
  • 33
    • 0028483705 scopus 로고
    • "The long-time self-diffusivity in concentrated colloidal dispersions"
    • JFLSA7 0022-1120
    • J. F. Brady, "The long-time self-diffusivity in concentrated colloidal dispersions," J. Fluid Mech.JFLSA70022-1120 272, 109 (1994).
    • (1994) Fluid Mech. , vol.272 , pp. 109
    • Brady, J.F.1
  • 34
    • 0001903943 scopus 로고
    • "The fractal concept in the rheology of concentrated suspensions"
    • RHEAAK 0035-4511
    • P. Mills and P. Snabre, "The fractal concept in the rheology of concentrated suspensions," Rheol. ActaRHEAAK0035-4511 26, 105 (1988).
    • (1988) Rheol. Acta , vol.26 , pp. 105
    • Mills, P.1    Snabre, P.2
  • 35
    • 49649141957 scopus 로고
    • "Rheology of monodisperse lattices"
    • ACISB9 0001-8686 10.1016/0001-8686(7)80001-0
    • I. M. Krieger, "Rheology of monodisperse lattices," Adv. Colloid Interface Sci.ACISB90001-868610.1016/0001-8686(72)80001-0 2, 111 (1972).
    • (1972) Adv. Colloid Interface Sci. , vol.2 , pp. 111
    • Krieger, I.M.1
  • 36
    • 0037192998 scopus 로고    scopus 로고
    • "Avalanche behavior in yield stress fluids"
    • PRLTAO 0031-9007 10.1103/PhysRevLett
    • P. Coussot, Q. D. Nguyen, H. T. Huynh, and D. Bonn, "Avalanche behavior in yield stress fluids," Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.88.175501 88, 175501 (2002).
    • (2002) Phys. Rev. Lett. , vol.88 , pp. 175501
    • Coussot, P.1    Nguyen, Q.D.2    Huynh, H.T.3    Bonn, D.4
  • 37
    • 41349089327 scopus 로고    scopus 로고
    • "Simple model for heterogeneous flows of yield stess fluids"
    • PLEEE8 1063-651X 10.1103/PhysRevE
    • G. Picard, A. Ajdari, L. Bocquet, and F. Lequeux, "Simple model for heterogeneous flows of yield stess fluids," Phys. Rev. EPLEEE81063-651X10.1103/PhysRevE.66.051501 66, 051501 (2002).
    • (2002) Phys. Rev. E , vol.66 , pp. 051501
    • Picard, G.1    Ajdari, A.2    Bocquet, L.3    Lequeux, F.4
  • 38
    • 0023482733 scopus 로고
    • "The shear-induced migration of particles in concentrated suspensions"
    • JFLSA7 0022-1120
    • D. Leighton and A. Acrivos, "The shear-induced migration of particles in concentrated suspensions," J. Fluid Mech.JFLSA70022-1120 181, 415 (1987).
    • (1987) J. Fluid Mech. , vol.181 , pp. 415
    • Leighton, D.1    Acrivos, A.2
  • 39
    • 77955409327 scopus 로고
    • "Experimental observations of particle migration in concentrated suspensions: Couette flow"
    • JORHD2 0148-6055 10.1122/1.550157
    • J. R. Abbott, N. Tetlow, A. L. Graham, S. A. Altobelli, E. Fukushima, L. A. Mondy, and T. S. Stephens, "Experimental observations of particle migration in concentrated suspensions: Couette flow," J. Rheol.JORHD20148-605510.1122/1.550157 35, 773 (1991).
    • (1991) Rheol. , vol.35 , pp. 773
    • Abbott, J.R.1    Tetlow, N.2    Graham, A.L.3    Altobelli, S.A.4    Fukushima, E.5    Mondy, L.A.6    Stephens, T.S.7
  • 40
    • 36449004475 scopus 로고
    • "A constitutive equation for concentrated suspensions that accounts for shear-induced particle migration"
    • PFADEB 0899-8213 10.1063/1.85898
    • R. J. Philips, R. C. Armstrong, R. A. Brown, A. L. Graham, and J. R. Abbott, "A constitutive equation for concentrated suspensions that accounts for shear-induced particle migration," Phys. Fluids APFADEB0899-821310.1063/1.858498 4, 30 (1992).
    • (1992) Phys. Fluids A , vol.4 , pp. 30
    • Philips, R.J.1    Armstrong, R.C.2    Brown, R.A.3    Graham, A.L.4    Abbott, J.R.5
  • 41
    • 0028121205 scopus 로고
    • "Shear-induced particle migration in Couette and parallel-plate viscometers: NMR imaging and stress measurements"
    • PHFLE 1070-31 10.103/1.88147
    • A. W. Chow, S. W. Sinton, and J. H. Iwamiya, "Shear-induced particle migration in Couette and parallel-plate viscometers: NMR imaging and stress measurements," Phys. FluidsPHFLE61070-663110.1063/1.868147 6, 2561 (1994).
    • (1994) Phys. Fluids , vol.6 , pp. 251
    • Chow, A.W.1    Sinton, S.W.2    Iwamiya, J.H.3
  • 42
    • 0000561618 scopus 로고    scopus 로고
    • "Migration of particles undergoing pressure-driven flow in a circular conduit"
    • JORHD2 0148-6055 10.1122/1.550863
    • R. E. Hampton, A. A. Mammoli, A. L. Graham, N. Tetlow, and S. A. Altobelli, "Migration of particles undergoing pressure-driven flow in a circular conduit," J. Rheol.JORHD20148-605510.1122/1.550863 41, 621 (1997).
    • (1997) J. Rheol. , vol.41 , pp. 621
    • Hampton, R.E.1    Mammoli, A.A.2    Graham, A.L.3    Tetlow, N.4    Altobelli, S.A.5
  • 43
    • 0030208727 scopus 로고    scopus 로고
    • "Shear induced radial segregation in bidisperse suspensions"
    • JFLSA7 0022-1120
    • G. P. Krishnan, S. Beimfohr, and D. Leighton, "Shear induced radial segregation in bidisperse suspensions," J. Fluid Mech.JFLSA70022-1120 321, 371 (1996).
    • (1996) J. Fluid Mech. , vol.321 , pp. 371
    • Krishnan, G.P.1    Beimfohr, S.2    Leighton, D.3
  • 44
    • 0032178393 scopus 로고    scopus 로고
    • "Modeling of concentrated suspensions using a continuum constitutive equation"
    • JFLSA7 0022-1120 10.1017/S0022112098002651
    • S. R. Subia, M. S. Ingber, L. A. Mondy, S. A. Altobelli, and A. L. Graham, "Modeling of concentrated suspensions using a continuum constitutive equation," J. Fluid Mech.JFLSA70022-112010.1017/ S0022112098002651 373, 193 (1998).
    • (1998) J. Fluid Mech. , vol.373 , pp. 193
    • Subia, S.R.1    Ingber, M.S.2    Mondy, L.A.3    Altobelli, S.A.4    Graham, A.L.5
  • 45
    • 0037561641 scopus 로고    scopus 로고
    • "Towards local rheology of emulsions under Couette flow using dynamic light scattering"
    • EPJSFH 1292-8941.1140/epje/i2002-1-5
    • J. B. Salmon, L. Bécu, S. Manneville, and A. Colin, "Towards local rheology of emulsions under Couette flow using dynamic light scattering," Eur. Phys. J. EEPJSFH1292-894110.1140/epje/ i2002-10110-5 10, 209 (2003).
    • (2003) Eur. Phys. E , vol.10 , pp. 209
    • Salmon, J.B.1    Bécu, L.2    Manneville, S.3    Colin, A.4


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