Magnetorheological (MR) fluids are suspensions of small particleswhose apparent rheological properties can be altered dramaticallyby applying a magnetic field. For example, magnetic fluxdensities of the order of 1 Tesla can induce a yield stress of theorder of 100 kPa in an otherwise essentially Newtonian fluid.After a brief introduction to magn...
Creator:
Klingenberg, Daniel J. (University of Wisconsin, Madison)
Created:
2009-09-15
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Measurements of the microstructure commensurate with the viscosity and normal stress differences in shearing colloidal suspensions provides an understanding of how to control the viscosity, shear thinning, and shear thickening rheological behavior typical of concentrated dispersions. In this presentation, I will review some of the experimental m...
Creator:
Wagner, Norman J. (University of Delaware)
Created:
2009-09-15
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The glass transition in quiescent colloidal suspensions is reasonably well accounted for by a mode coupling theory which treats the collective freezing of density fluctuations but neglects activated processes. In recent years we have extended this approach, with the aid of an exact nonequilibrium Green-Kubo formula, to address the nonlinear rheo...
Creator:
Cates, Michael E. (University of Edinburgh)
Created:
2009-09-15
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We discuss bacterial biofilms and the scope for describing their viscoelastic mechanical properties as a consequence of their underlying polymeric and multiphase morphology. Biofilms are the most prevalent phenotype of bacteria in nature. Biofilms form under conditions common in industry and in the body. They are structurally heterogeneous on mu...
Creator:
Solomon, Michael J. (University of Michigan)
Created:
2009-09-15
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In 1975 Doi and Edwards predicted that entangled polymer melts andsolutions can have a constitutive instability, signified by adecreasing stress for shear rates greater than the inverse of thereptation time. Early experiments did not support this, and moresophisticated theories were developed that incorporated Marrucci's idea (1996) ofremoving c...
Creator:
Olmsted, Peter D.
Created:
2009-09-14
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Next to Lake Champlain, in Crown Point, New York. Grows 'Honeycrisp' apple, developed by the University of Minnesota, released in 1991. Also a member of NBT Coop, growing SweeTango(R). Agricultural Experiment Station project #21-016, "Breeding and Genetics of Fruit Crops for Cold Climates." Principal investigator: James J. Luby; scientist, David...
Creator:
Hansen, David L., 1952-
Created:
2009-09-14
Contributed By:
University of Minnesota, Minnesota Agricultural Experiment Station.
Next to Lake Champlain, in Crown Point, New York. Grows 'Honeycrisp' apple, developed by the University of Minnesota, released in 1991. Also a member of NBT Coop, growing SweeTango(R). Agricultural Experiment Station project #21-016, "Breeding and Genetics of Fruit Crops for Cold Climates." Principal investigator: James J. Luby; scientist, David...
Creator:
Hansen, David L., 1952-
Created:
2009-09-14
Contributed By:
University of Minnesota, Minnesota Agricultural Experiment Station.
Next to Lake Champlain, in Crown Point, New York. Grows 'Honeycrisp' apple, developed by the University of Minnesota, released in 1991. Also a member of NBT Coop, growing SweeTango(R). Agricultural Experiment Station project #21-016, "Breeding and Genetics of Fruit Crops for Cold Climates." Principal investigator: James J. Luby; scientist, David...
Creator:
Hansen, David L., 1952-
Created:
2009-09-14
Contributed By:
University of Minnesota, Minnesota Agricultural Experiment Station.
Next to Lake Champlain, in Crown Point, New York. Grows 'Honeycrisp' apple, developed by the University of Minnesota, released in 1991. Also a member of NBT Coop, growing SweeTango(R). Agricultural Experiment Station project #21-016, "Breeding and Genetics of Fruit Crops for Cold Climates." Principal investigator: James J. Luby; scientist, David...
Creator:
Hansen, David L., 1952-
Created:
2009-09-14
Contributed By:
University of Minnesota, Minnesota Agricultural Experiment Station.
Next to Lake Champlain, in Crown Point, New York. Grows 'Honeycrisp' apple, developed by the University of Minnesota, released in 1991. Also a member of NBT Coop, growing SweeTango(R). Agricultural Experiment Station project #21-016, "Breeding and Genetics of Fruit Crops for Cold Climates." Principal investigator: James J. Luby; scientist, David...
Creator:
Hansen, David L., 1952-
Created:
2009-09-14
Contributed By:
University of Minnesota, Minnesota Agricultural Experiment Station.