The use of artificial biofilms to strip nutrients from an industrial smelters waste water under conditions of low temperature and high pH

The Victorian Environment Protection Authority (EPA) has identified Alcoa’s Point Henry aluminium smelter as being a major source of recognized pollutant input due to its disposal of effluent into Corio Bay. Historically, the water quality parameters that have most often exceeded Point Henry’s EPA limits have been pH and suspended solids from the smelter’s discharge points. These waste water discharges also experience high nitrogen and phosphorus concentrations which result in algal blooms that occur at the onset of warm weather. The main hypothesis of this study was that “prevention of algal blooming with the onset of warm weather by removal of nutrients during the cooler months, and continued removal thereafter, is better than curing the problems chemically”. Biofilms have been used to remove nutrients from waste waters, but not under the conditions experienced at Point Henry. The aim of this study, therefore, was to determine if significant biofilm growth would be observed on floating structures suspended in the Point Henry waste water stream during the cooler, winter months of the year. Statistically significant biofilm growth occurred on all suspended structures in all discharge ponds during the winter and early spring of 2000. The use of suspended structures, such as AquaMatTM, as an artificial substrate to attract and support periphyton and bacterial communities (biofilms), which are then able to out-compete phytoplankton communities for available nutrients, is therefore a viable option for the Point Henry smelter. However, further research on the competitive performance of biofilms in the Point Henry ponds during the summer months is required before adequate biofilm management strategies can be developed.

Industrial application of thermal image processing and thermal control

Industrial application of infrared thermography is virtually boundless as it can be used in any situations where there are temperature differences. This technology has particularly been widely used in automotive industry for process evaluation and system design. In this work, thermal image processing technique will be introduced to quantitatively calculate the heat stored in a warm/hot object and consequently, a thermal control system will be proposed to accurately and actively manage the thermal distribution within the object in accordance with the heat calculated from the thermal images.

An exploratory study into the accountancy firms chosen by industrial company IPOS in Australia from 1994 to 2004

This study is an exploration into the choice of independent accountants made by industrial initial public offering (IPO) companies in Australia between the years 1994 to 2004. The aim of this research is to determine which companies are more likely to use one of the Top 5 accountancy firms and in so doing we seek to offer some insight into understanding the likelihood of IPO companies adopting the services of the big accounting firms. Our findings show, as predicted, that the majority of industrial IPO companies, and particularly the larger companies, used one of the Top 5 accountancy firms as their independent accountant. However, unexpected was that certain industry types were less likely to hire a Top 5 accounting firm for their independent accounting services compared to other industry categories. Our studies also found that after the year 2000 a smaller percentage of companies used independent accountants than between 1994 and 1999. Many factors contribute to the selection of an independent accountant and this paper provides some understanding of identified factors and the influence that they have over the choice of independent accountants by industrial company IPOs.

Exploratory study into the accountancy firms chosen by industrial company IPOs in Australia from 1994 to 2004

This study is an exploration into the choice of independent accountants made by industrial initial public offering (IPO) companies in Australia between the years 1994 to 2004. The aim of this research is to determine which companies are more likely to use one of the Top 5 accountancy firms and in so doing we seek to offer some insight into understanding the likelihood of IPQ companies adopting the services of the big accounting firms. Our findings show, as predicted, that the majority of industrial IPO companies, and particularly the larger companies, used one of the Top 5 accountancy firms as their independent accountant. However, unexpected was that certain industry types were less likely to hire a Top 5 accounting finn for their independent accounting services compared to other industry categories. Our studies also found that after the year 2000 a smaller percentage of companies used independent accountants than between 1994 and 1999. Many factors contribute to the selection of an independent accountant and this paper provides some understanding of identified factors and the influence that they have over the choice of independent accountants by industrial company IPOs.

Catholic social thought and labouring ideals in Australia's new industrial context

This article sets out the principles of Catholic social doctrine as they pertain to the rights of employees, the duties of the employers and the obligations of the state. It relates these to the historical development of industrial work and employment in Australia, noting the close proximity of the principles to the social and political arrangements that emerged over the period of the Australian Settlement. It goes on to identify the more recent demise of Catholic activism, which, in combination with the pursuit of neo-liberal policy solutions and market reforms, has purged previous arrangements of their former notions of `fairness' and equity. It concludes that those opposing such solutions and reforms should think beyond simply framing arguments in terms of the economic or the instrumental, and might usefully draw on the labouring ideals set out in Catholic social doctrine to develop a more thorough set of moral and ethical principles to support their cause.

Monitoring and motivating outworkers : the case of the AMP and the sale of industrial life insurance 1905-1940

The development of labor management practices in the financial services sector provides an interesting insight into how problems associated with agency issues were overcome. Within financial institutions and other white collar occupations, the use of internal labor markets emerged as an effective means of both controlling and motivating employees. However such management techniques were only effective in cases where work tasks could be internalized. The business of some types of organizations necessitated a division of work tasks between those undertaken within the office and those undertaken outside the office. The management and sale of insurance products is a case in point. This paper explores the development of processes implemented to resolve a specific type of labor management issue, namely the control of workers under conditions of uncertainty. Using the example of the Australian Mutual Provident (Australia's largest life insurer), it analyses how and why particular work relations procedures were developed.