Dr Owen G. Jepps

B Arts, B Science, PhD

ARC APD Fellow and Lecturer (Applied Mathematics)

Contact details for Dr Owen Jepps

Research Expertise

The main focus of my research interest is in developing tractable physical and/or mathematical models of physical or biological systems, including mass transport processes. Specific areas include:

Theory of mass transport (diffusion)

• Statistical mechanics, thermodynamics, and dynamical systems theory
• Nanoscale systems: constitutive relations, equilibrium and non-equilibrium systems, theories of fluctuations

Transdermal drug delivery

• Development of analytical and/or numerical models for drug permeation combining physiological and thermodynamic approaches
• Studying skin lipid bilayers using molecular simulation techniques

Diffusion in microporous materials

• Modelling fluid storage and transport properties of carbon and silica micropores

Molecular Simulations methods

• Non-equilibrium Molecular Dynamics (hard and soft spheres)
• Thermostatting techniques for Molecular Dynamics (including configurational temperatures)

Other interests

• Mathematical models of biological system

Current Teaching Areas

• Applied Mathematics
• Dynamical Systems

Publications

• Jepps OG, Bianca C, Rondoni L, "Onset of diffusive behaviour in confined transport systems", Chaos, 18 (1), 013127 (2008).
• Jepps OG, Rondoni L, "Thermodynamics and complexity of simple transport phenomena", J. Phys. A, 39 (1), 1311-1338 (2006).
• Jepps OG, Bhatia SK, Searles DJ, "Effects of the Juxtaposition of Carbonaceous Slit Pores on the Overall Transport Behaviour of Adsorbed Fluids", Langmuir 21 (4), 229-239 (2005).
• Jepps OG, Bhatia SK, Searles DJ, "Modelling diffusion transport in slit pores", J. Chem. Phys. 120 (11), 5396-5406 (2004).
• Jepps O, Evans DJ, Searles DJ, "The Fluctuation Theorem and Lyapunov Weights", Physica D 187 (4), 326-337 (2004).
• Jepps OG, Bhatia SK, Searles DJ, "Wall mediated transport in confined spaces: Exact theory for low density", Phys. Rev. Lett.  91 (12), 126102 (2003).
• Jepps OG, Bhatia SK, "Method for determining the shear stress in cylindrical systems", Phys. Rev. E  67 (4), 041206 (2003).
• Petravic J, Jepps OG, "Homogeneous shear flow of a hard-sphere fluid: Analytic solutions", Phys. Rev. E  67 (2), 021105 (2003).
• Lue L, Jepps OG, Delhommelle J, Evans DJ, "Configurational thermostats for molecular systems", Mol. Phys. 100 (14), 2387-2395 (2002).
• Jepps OG, Ayton G, Evans DJ, "Microscopic expressions for the thermodynamic temperature", Phys. Rev. E  62 (4), 4757-4763 (2000).
• Butler BD, Ayton G, Jepps OG, Evans DJ, "Configurational temperature: Verification of Monte Carlo simulations", J. Chem. Phys. 109 (16), 6519-6522 (1998).
• Attard P, Jepps OG, Marcelja S, "Information content of signals using correlation function expansions of the entropy", Phys. Rev. E  56 (4), 4052-4067 (1997).