R. C. Ball
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View article: The stress field in granular systems: Loop forces and potential formulation
The stress field in granular systems: Loop forces and potential formulation Open
The transmission of stress through a marginally stable granular pile in two dimensions is exactly formulated in terms of a vector field of loop forces, and thence in terms of a single scalar potential. The loop force formulation leads to a…
View article: Angular Structure of Lacunarity, and the Renormalisation Group
Angular Structure of Lacunarity, and the Renormalisation Group Open
We formulate the angular structure of Lacunarity in fractals, in terms of a symmetry reduction of the three point correlation function. This provides a rich probe of universality, and first measurements yield new evidence in support of the…
View article: Dynamics of spontaneous emulsification
Dynamics of spontaneous emulsification Open
We present a model for spontaneous emulsification resulting from a transiently negative interfacial tension between water and oil regions, which may be achieved under conditions of strong adsorption of surfactant molecules to the interface…
View article: Light Scattering from a Surfactant “Sponge” Phase: Evidence for a Hidden Symmetry
Light Scattering from a Surfactant “Sponge” Phase: Evidence for a Hidden Symmetry Open
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