The near-unity efficiency of energy transfer in photosynthesis makes photosynthetic light-harvesting complexes a promising avenue for developing new renewable energy technologies. Knowledge of the energy landscape of these complexes is essential in understanding their function, but its experimental determination has proven elusive. Here, the observation of quantum coherence using two-dimensiona...

REDUCING costs within the harvesting and transport system is a high priority for many sugar milling regions in Australia. Typical issues include reducing the number harvesting groups, harvesting over a longer time window in a day, rationalising infrastructure and achieving a better co-ordination between harvesting and transport activities. As part of a series of integrated models to conduct the...

Photosynthetic organisms are capable of harvesting solar energy with near unity quantum efficiency. Even more impressively, this efficiency can be regulated in response to the demands of photosynthetic reactions and the fluctuating light-levels of natural environments. We discuss the distinctive design principles through which photosynthetic light-harvesting functions. These emergent properties...

A generalized master equation (GME) governing quantum evolution of modular exciton density (MED) is derived for large scale light harvesting systems composed of weakly interacting modules of multiple chromophores. The GME-MED offers a practical framework to incorporate real time coherent quantum dynamics calculations of small length scales into dynamics over large length scales, and also provid...

A user friendly, computer based program has been developed to estimate the performance and cost of sugarcane combine harvesters and associated infield transport vehicles. The model was originally developed to assess the effect of various field parameters, infield cultural practices and also the number and capacity of infield transport vehicles on harvester output. A costing program was subseque...

The object of this study was evaluation of a walking tractor drawn peanut harvester at different conditions of soil moisture content and forward speed and comparing it with manual harvesting. The evaluation factors for peanut harvester were two levels of soil moisture content and three levels of forward speed. The results revealed that the effect of soil moisture content was only significant on...

Light-harvesting in photosynthesis is determined by the excitonic interactions in disordered antennae and the coupling of collective electronic excitations to fast nuclear motions, producing efficient energy transfer with a complicated interplay between exciton and vibrational coherences. In this chapter we apply 2DES to an excitonically coupled bacteriochlorophyll dimer, the B820 subunit of th...

The present paper describes a model of resource biomass and population with a non-linear catch rate function on resource biomass. The harvesting effort is assumed to be a dynamical variable. Tax on per unit harvested resource biomass is used as a tool to control exploitation of the resource. Pontryagin’s Maximum Principle is used to find the optimal control to maintain the resource biomass and ...

Models Made for Business ......................................................................................................... 2 ArcStyler Overview.................................................................................................................... 2 Main Benefits ....................................................................................................................

Aim: Skin grafts are often performed to treat chronic wounds including venous leg, diabetic foot, and pressure ulcers. Although traditional skin grafting has been successful for many years, it is often associated with donor site damage, and necessitates a surgical suite. In this IRB-approved study, an epidermal harvesting tool* was used to create epidermal grafts from 12 healthy human subjects....