Atom probe tomography as a tool to advance steels design and performance

Development of modern steels consisting of complex or nano-scale microstructures with advanced properties requires in-depth understanding of the mechanisms responsible for their microstructure/property relationships. The evolution of microstructure during processing is often associated with various changes taking place at atomic level. These include solute distribution between phases as a result of phase transformations, formation of atmospheres at dislocations, clustering and precipitation phenomena due to various thermo-mechanical processing schedules and/or heat treatments. Atom probe tomography (APT) is invaluable tool for gaining insight into events at atomic scale determining the steel properties. This technique also contributes to the fundamental understanding of phase transformations, which is essential for nano-scale engineering of modern steels and optimization of their performance. In this work application of APT to study solute segregation, clustering and precipitation in TRIP steels and nanostructured bainitic steels after isothermal heat-treatment and after thermomechanical processing will be discussed.

Embodied choreography and performance of gender

Norms of fitting embodied behaviour for males and females, as promoted in Australian public arenas of popular culture and the everyday, disempower and marginalise those not inclined to embody in gendernormative and heteronormative ways.

This thesis engages with concepts of embodiment as meaning the manner of physical deportment in which a physical practice is performed, and with concepts of gender as social constructions of femininity and masculinity. It investigates the demands and implications of dominant norms of gender embodiment for those whose embodied inclinations do not fit comfortably with such dichotomous models. It interrogates gender inequitable machinations of education and performance arts disciplines by which educators and arts practitioners train, teach, choreograph, and direct those with whom they work, and theorises ways of broadening personal and social notions of possible, aesthetic, and acceptable embodiment for all persons, regardless of biological sex or sexual orientation.

This research is grounded in two major qualitative methods of enquiry. First, through an autoethnographic lens, it focuses on the impacts that social constructions of masculinity have on me, both as a person in the everyday and as a performance arts practitioner/educator. Through writing, illustration, choreography, and performance, as well as interviews with 3 members of my family, I analyse the delicacy of the relationship between social control/surveillance and personal agency over my embodiment of gender. Second, through empirical ethnographic fieldwork with some 400 high school students and 160 educators and performance arts practitioners, I utilise a combination of performance, discussion, practical workshop, and avenues for anonymous response to explore the potential of the performance arts in challenging inequitable notions of gender embodiment.

My findings demonstrate that inherent ideologies in dominant discourses regarding the execution and display of feminine and masculine embodiment continue to work, overtly and covertly, as definitive and restrictive barriers to the realm of possibilities of embodied gender expression and appreciation in the everyday and in the performance arts. This thesis recommends drawing individuals’ attention to embodied gender inequities and enculturation processes, not ordinarily critiqued within mainstream society, as a key toward safeguarding the well-being of those whose embodied performance inclination is at odds with prescribed norms of behaviour. Performance arts arenas are powerful sites in which such deconstructive work can occur, both cognitively and practically. However, as this thesis explores and illustrates, performance arts practitioners/educators need to first scrutinise existing and hidden inequities regarding the embodiment of gender within their own habitus, perspectives, taste, and practices.

External knowledge and performance of offshore IT service providers in India : the mediating role of talent management

The global shortage of IT professionals has been identified as one of the most serious threats against the continued growth of offshore IT service providers (OSPs). As a result, talent management has become a key competitive strategy for OSPs. However, how talent management contributes towards the performance of OSPs remains poorly understood in relation to its interaction with knowledge. To examine this issue, we draw on a sample of 68 OSPs in India to test the effects of talent management and external knowledge on performance. The results confirm that both external knowledge and talent management are positively related to firm performance and that the latter has strong mediating effects on the relationship between external knowledge and firm performance. The results suggest that OSPs should consider talent management as a mechanism through which knowledge resources can be exploited to enhance firm performance. The managerial implications and limitations of the findings are also discussed.

University entrepreneurship : context, process and performance

This project embraced empirical work that studied existing research commercialization systems (RCS) at both first tier and second tier universities, found them flawed and produced an enhanced framework that is definitely applicable to second tier universities (the vast majority) and possibly applicable to first tier universities as well.

Relationships between stress-related working conditions and performance : a comprehensive investigation

The study examined if and how prominent stress-related working conditions were longitudinally associated with multiple employee performance behaviours. The findings revealed the positive influence of workload demands and the positive curvilinear effects attributed to relationship-based resources (support from colleagues, fair interpersonal treatments and fair information sharing) on performance long-term.

Quantifying the efficiency and understanding the mechanism of localised corrosion inhibition using the wire beam electrode

Parameters extracted from the wire beam electrode (WBE) galvanic current maps have been used in conjunction with electrochemical noise patterns to directly quantify the degree of localised corrosion inhibition provided by inhibitors and to understand the mechanism of localised corrosion inhibition. The behaviour of two traditional localised corrosion inhibitors has been assessed by their effects on the maximum anodic current density (imax), total anodic current density (itot), the number of anodic sites (Na) and the localised corrosion intensity index (LCII). Typical experiments are presented to illustrate the application of these parameters in providing useful information on the efficiency and mechanism of localised corrosion inhibition.

Properties, processing and performance of rare and natural fibres : a review and interpretation of existing research results

A substantial up-to-date reference manual has been prepared which documents important issues for the supply chain of rare natural animal fibres. New developments in textiles have been included. Cashmere, mohair and camelid fibres have special properties of softness, smoothness and lustre, when compared with sheep wool. They also have other attributes which affect market prices and consumer perceptions, such as being rare and exotic luxuries, and are associated with expensive, comfortable and exclusive garments. These fibres add to the range of wool processing, and add value to wool textiles. Generally, knowledge about these animal fibres is limited, and research effort small compared with research into wool and other natural and man-made fibres. Compared with wool, rare natural animal fibres are more difficult and costly to process. Knowledge about processing these fibres is kept guarded as industrial knowledge. There are problems with clearly identifying rare natural animal fibres when goods are traded or fibres are blended, and fraud is a major concern for textile manufacturers and industry groups. Prickle discomfort in mohair and alpaca next-to-skin wear is a major concern for consumers and textile manufacturers. Natural colours, whiteness and yellowness of rare natural animal fibres are important fibre attributes for dyers and consumers, and the current products have both positive and negative colour attributes for processors. Past investments by RIRDC have made substantial gains in knowledge about fundamental and applied areas of knowledge on the properties, testing and processing performance of rare natural animal fibres.

The mediating role of work climate perceptions in the relationship between personality and performance

Although past research has demonstrated a link between personality and job performance, potential enabling factors of this relationship have yet to be explored comprehensively. We hypothesized that perceptions of work climate, specifically relationship dimensions—cohesion, supervisor support, and job involvement—might be the mechanism through which the relationship between personality and job performance can be explained. Two hundred and thirty Australian employees completed an online survey measuring personality, relationship dimensions of work climate (job involvement, coworker cohesion, and supervisor support) and job performance. Results revealed that the relationship dimensions of work climate fully mediated the relationship between agreeableness and job performance, and extraversion and job performance, while the relationship between neuroticism and job performance was partially mediated by relationship dimensions of work climate. Supervisor support primarily accounted for this mediated effect for the neuroticism–job performance relationship, whereas for extraversion only job involvement explained significant unique variance. Our findings suggest that the relationship of agreeableness, extraversion, and neuroticism with job performance is indirect, and perceptions of the work environment itself play a role in this relationship. This implies that organizations should consider the work environment, in addition to personality during selection procedures. Future research should examine whether different levels of work environment dimensions, foster greater job performance in employees.