Properties of nonequilibrium steady states. A nonequilibrium steady state (NESS) occurs when work is performed on a system and the heat so generated is absorbed by a thermostatting mechanism. The system settles into steady state and its properties no longer change. Almost all experimental systems of interest are in a nonequilibrium state, so understanding NESSs is highly significant. Unlike time stationary equilibrium states, the distribution of microstates in a NESS cannot be described by simpl ....Properties of nonequilibrium steady states. A nonequilibrium steady state (NESS) occurs when work is performed on a system and the heat so generated is absorbed by a thermostatting mechanism. The system settles into steady state and its properties no longer change. Almost all experimental systems of interest are in a nonequilibrium state, so understanding NESSs is highly significant. Unlike time stationary equilibrium states, the distribution of microstates in a NESS cannot be described by simple closed form distributions. This project will determine properties, symmetries and extrema of NESS using concepts and theorems developed for studying transient nonequilibrium states, and will also determine if approximate, physically relevant forms of the phase space distributions can be developed.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE170101024
Funder
Australian Research Council
Funding Amount
$360,000.00
Summary
How antimatter and matter solvates in liquids. This project aims to improve solvation in transport calculations and polar liquids. Solvation, the process of a particle becoming trapped in a liquid, is important in Positron Emission Tomography medical imaging. However, this application can only be described through particle transport simulation, which cannot address solvation. Modelling the dynamical solvation process of the electron and the positron, its antimatter counterpart, is expected to en ....How antimatter and matter solvates in liquids. This project aims to improve solvation in transport calculations and polar liquids. Solvation, the process of a particle becoming trapped in a liquid, is important in Positron Emission Tomography medical imaging. However, this application can only be described through particle transport simulation, which cannot address solvation. Modelling the dynamical solvation process of the electron and the positron, its antimatter counterpart, is expected to enable accurate simulation of medical imaging, acquiring the greatest amount of information for the smallest dosage of radiation to the patient allowing for lower patient radiation doses and more informative scans.Read moreRead less
Optical tweezers as a micro-rheological probe of soft surfaces. Biomembranes are more than soft containers - their dynamic flexibility plays an important role in cell function, but measurements of mechanical properties of soft surfaces are non-existent. This project develops and applies a new optical tweezers method to measure the flexibility of membranes and its effects upon the friction of nearby particles.
Dissipation and relaxation in statistical mechanics. This project studies the mathematical conditions for relaxation either to equilibrium or to steady states, which is important in predicting behaviour in diverse fields including climate modelling, materials science, nanotechnology and biology. Early career researchers will be involved in the project, gaining valuable skills in theory and simulation.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE110100064
Funder
Australian Research Council
Funding Amount
$150,000.00
Summary
Optically controlled containers for experiments in soft matter. Nanotechnology has a promising future in the fabrication of small machines but exactly how these machines work is far less certain as they defy fundamental, classical thermodynamics. This equipment will allow Australian researchers to probe the energy dissipation of, and the work done by, small systems, including those of single molecules, colloidal crystals and membranes.