Long term transmission planning to meet renewable energy targets in Australia

Australia is rich in renewable energy resources such as wind, solar and geothermal. Geographical diversity of these renewable resources combined with developing climate change policies poses a great challenge for the long term interconnection planning. Intermittency of wind and solar potentially driving the development of new transmission lines bring additional complexity to power system operations and planning. This paper provides an overview of generation and transmission planning studies in Australia to meet 20% renewable energy target by 2020. Appraisal of the effectiveness of dispersed energy storage, non schedulable peaking plants, wide area controls and demand management techniques to aid the penetration of renewables is presented in this paper

Security constrained economic dispatch considering wind energy conversion systems

The available wind power is stochastic and requires appropriate tools in the OPF model for economic and reliable power system operation. This paper exhibit the OPF formulation with factors involved in the intermittency of wind power. Weibull distribution is adopted to find the stochastic wind speed and power distribution. The reserve requirement is evaluated based on the wind distribution and risk of under/over estimation of the wind power. In addition, the Wind Energy Conversion System (WECS) is represented by Doubly Fed Induction Generator (DFIG) based wind farms. The reactive power capability for DFIG based wind farm is also analyzed. The study is performed on IEEE-30 bus system with wind farm located at different buses and with different wind profiles. Also the reactive power capacity to be installed in the wind farm to maintain a satisfactory voltage profile under the various wind flow scenario is demonstrated.

Review: Barbara T. Hoffman (ed) - Art and Cultural Heritage : Law, Policy and Practice

In Art and Cultural Heritage: Law, Policy and Practice Barbara Hoffman as editor brings together an impressive array of practitioners from a variety of fields (from archaeologists to lawyers), to present in single volume aspects of policy, law and practice relevant to cultural heritage, which are not normally addressed in such texts. The book is indeed a comprehensive work to be recommended to policy makers, practitioners, students and other interested readers...

‘Wide Atlantic Ocean’ : acting methods and cultural translation in mainstream theatre

A recent production of Nicholson’s Shadowlands at the Brisbane Powerhouse could have included two advertising lines: “Outspoken American-Jewish poet meets conservative British Oxford scholar” and “Emotive American Method trained actor meets contained British trained actor.” While the fusion of acting methodologies in intercultural acting has been discussed at length, little discussion has focussed on the juxtaposition of diverse acting styles in production in mainstream theatre. This paper explores how the permutation of American Method acting and a more traditional British conservatory acting in Crossbow’s August 2010 production of Shadowlands worked to add extra layers of meaning to the performance text. This sometimes inimical relationship between two acting styles had its beginnings in the rehearsal room and continued onstage. Audience reception to the play in post-performance discussions revealed the audience’s acute awareness of the transatlantic cultural tensions on stage. On one occasion, this resulted in a heated debate on cultural expression, continuing well after the event, during which audience members became co-performers in the cultural discourses of the play.

Cultural factors affecting tertiary education access for Bundjalung men

Despite documented changes to mainstream educational systems, Indigenous educational achievements are still at critically low levels across all phases of formal education. According to the Australian Bureau of Statistics (2011) Indigenous students are still less likely than non-Indigenous students to complete their final years of schooling (45% compared with 77% in 2009); tertiary level entry and outcomes are also significantly lower than non-Indigenous entry and outcomes. Although significant research has focused on the area of Indigenous education, in particular, identifying and making recommendations on how to close educational gaps between Indigenous and non-Indigenous people, these studies have failed to bring about the change needed and to engage successfully with Indigenous communities and draw on Indigenous communities’ insights for best practice. This thesis focuses on Indigenous perspectives and takes a closer look at the cultural factors that impact on tertiary education access for Indigenous young men who come from a Bundjalung community on the far north coast of northern New South Wales. To date, this community has not been the focus of serious postgraduate study. Their experiences and the values and ideas of their community have not been investigated. To do this, the study uses an Indigenous methodological framework. It draws on Indigenous Standpoint Theory to analyse data through concepts of the cultural interface and tensions (Nakata, 2007, pp. 195-217). The study’s framing also draws on decolonising methods (Porsanger, 2004; Smith, 1999) and Indigenist research methods (Rigney, 1997). Such methodologies are intended to benefit both the research participants (community members) and the researcher. In doing so, the study draws on Creswell’s (2008) methods of restorying and retelling to analyse the participants’ interviews and yarns about their lives and experiences relating to tertiary educational access. The research process occurred in multiple stages: (1) selection of research sites, (2) granting of access which was requested through consultation with local Aboriginal Elders and through the local Aboriginal Lands Council, (3) conducting of interviews with participants/ data collection, (4) analysis of data, (5) documentation of findings, (6) theory development, and (7) reporting back to the nominated Indigenous community on the progress and findings of the research. The benefits of this research are numerous. First, this study addresses an issue that has been identified from within the local Aboriginal community as an issue of high precedence, looking at the cultural factors surrounding the underrepresentation of Indigenous people accessing tertiary education. This is not only of local significance but has been identified in the literature as a local, national and international area of concern amongst Indigenous peoples (Department of Economic and Social Affairs, 2009; Herbert, 2010; King, 2011). Secondly, the study draws on local Indigenous knowledges and learning processes from within a Bundjalung community to gain inside perspectives, namely the cultural factors that are being expressed from a range of Indigenous community members – young men, community Elders and community members – and finding out what they perceive inhibit and/or promote tertiary education participation within their community. Such perspectives are rarely heard. Finally, recommendations made from this study are aimed at revealing investigative styles that may be utilised by Western institutions to improve access for Indigenous young men living in the Narlumdarlum1 region in the tertiary context.

Tangible cultural heritage and adaptive reuse: the Old Government House, Brisbane, Australia

The Old Government House, a former residence of the Queen’s representatives in Brisbane, Australia, symbolises British cultural heritage of Colonial Queensland. Located on the campus of the Queensland University of Technology, it is one of the oldest surviving examples of a stately residence in Queensland. Built in 1860s, the Old Government House was originally intended as a temporary residence for the first governor of the newly independent colony of Queensland. However, it remained the vice-regal residence until 1909, serving eleven succeeding governors. Nearly seven decades later, it became the first building in Queensland to be protected under heritage legislation. Thus its importance, as an excellent exemplar that demonstrates the significance of cultural heritage, was established. The Old Government House has survived 150 years of restoration work, refurbishments, and additions. Through these years, it has served the people of Queensland in a multitude of roles. This paper aims to investigate the survival of heritage listed buildings through their adaptive re-use. Its focus will be on the adaptive reuse of the Old Government House through its refurbishments and additions over a period of 150 years. Through a qualitative research process this paper will endeavour to establish the significance of restoration work on the Old Government house; the new opportunities that has opened up as a result of the restoration work; the continued maintenance and management of the building through adaptive re-use; the economic benefits of restoration work; and its contribution to the on-going interest in the preservation of the Tangible Cultural Heritage.

Say goodbye to the fries : graduate careers in media, cultural and communication studies

This article addresses the paucity of systematic data on graduate careers in the arts and humanities in the broader context of enduring public and policy debates about the benefits of education to society, the relation between public and private good that is derivable from education, and the specific disciplinary angle that can be brought to bear on these questions from media, cultural and communication studies. We report findings from a survey of ten years of graduates from Queensland University of Technology’s courses in media, cultural and communication studies which indicate very high employment levels and generally positive accounts of the relevance of courses to working life. A major insight that can be drawn from the research is that media, cultural and communication studies deliver capabilities, skills and orientations which are themselves strongly aligned with the kinds of transferable generic attributes which facilitate transition into the workplace.

Safety impacts of alcohol and other drugs in construction : development of an industry policy and cultural change management program

There is increasing concern about the impact of employees‟ alcohol and other drug (AOD) consumption on workplace safety and performance, particularly within the construction industry. While most Australian jurisdictions have identified this as a critical safety issue, information is limited regarding the prevalence of AODs in the workplace and there is limited evidential guidance regarding how to effectively and efficiently address such an issue. The current research aims to scientifically evaluate the use of AODs within the Australian construction industry in order to reduce the potential resulting safety and performance impacts and engender a cultural change in the workforce - to render it unacceptable to arrive at a construction workplace with impaired judgement from AODs. The study will adopt qualitative and quantitative methods to firstly evaluate the extent of general AOD use in the industry. Secondly, the development of an appropriate industry policy will adopt a non-punitive and rehabilitative approach developed in consultation with employers and employees across the infrastructure and building sectors, with the aim it be adopted nationally for adoption at the construction workplace. Finally, an industry specific cultural change management program and implementation plan will be developed through a nationally collaborative approach. Final results indicate that a proportion of those sampled in the construction sector may be at risk of hazardous alcohol consumption. A total of 286 respondents (58%) scored above the cut-off cumulative score for risky or hazardous alcohol. Other drug use was also identified as a major issue. Results support the need for evidence-based, preventative educational initiatives that are tailored to the industry. This paper will discuss the final survey and interview results.

Ionic liquid pre-treatment and fractionation of sugarcane bagasse for the production of bioethanol

Pretretament is an essential and expensive processing step for the manufacturing of ethanol from lignocellulosic raw materials. Ionic liquids are a new class of solvents that have the potential to be used as pretreatment agents. The attractive characteristics of ionic liquid pretreatment of lignocellulosics such as thermal stability, dissolution properties, fractionation potential, cellulose decrystallisation capacity and saccharification impact are investigated in this thesis. Dissolution of bagasse with 1-butyl-3-methylimidazolium chloride ([C4mim]Cl) at high temperatures (110 �‹C to 160 �‹C) is investigated as a pretreatment process. Material balances are reported and used along with enzymatic saccharification data to identify optimum pretreatment conditions (150 �‹C for 90 min). At these conditions, the dissolved and reprecipitated material is enriched in cellulose, has a low crystallinity and the cellulose component is efficiently hydrolysed (93 %, 3 h, 15 FPU). At pretreatment temperatures < 150 �‹C, the undissolved material has only slightly lower crystallinity than the starting. At pretreatment temperatures . 150 �‹C, the undissolved material has low crystallinity and when combined with the dissolved material has a saccharification rate and extent similar to completely dissolved material (100 %, 3h, 15 FPU). Complete dissolution is not necessary to maximize saccharification efficiency at temperatures . 150 �‹C. Fermentation of [C4mim]Cl-pretreated, enzyme-saccharified bagasse to ethanol is successfully conducted (85 % molar glucose-to-ethanol conversion efficiency). As compared to standard dilute acid pretreatment, the optimised [C4mim]Cl pretreatment achieves substantially higher ethanol yields (79 % cf. 52 %) in less than half the processing time (pretreatment, saccharification, fermentation). Fractionation of bagasse partially dissolved in [C4mim]Cl to a polysaccharide rich and a lignin rich fraction is attempted using aqueous biphasic systems (ABSs) and single phase systems with preferential precipitation. ABSs of ILs and concentrated aqueous inorganic salt solutions are achievable (e.g. [C4mim]Cl with 200 g L-1 NaOH), albeit they exhibit a number of technical problems including phase convergence (which increases with increasing biomass loading) and deprotonation of imidazolium ILs (5 % - 8 % mol). Single phase fractionation systems comprising lignin solvents / cellulose antisolvents, viz. NaOH (2M) and acetone in water (1:1, volume basis), afford solids with, respectively, 40 % mass and 29 % mass less lignin than water precipitated solids. However, this delignification imparts little increase in saccharification rates and extents of these solids. An alternative single phase fractionation system is achieved simply by using water as an antisolvent. Regulating the water : IL ratio results in a solution that precipitates cellulose and maintains lignin in solution (0.5 water : IL mass ratio) in both [C4mim]Cl and 1-ethyl-3-methylimidazolium acetate ([C2mim]OAc)). This water based fractionation is applied in three IL pretreatments on bagasse ([C4mim]Cl, 1-ethyl-3-methyl imidazolium chloride ([C2mim]Cl) and [C2mim]OAc). Lignin removal of 10 %, 50 % and 60 % mass respectively is achieved although only 0.3 %, 1.5 % and 11.7 % is recoverable even after ample water addition (3.5 water : IL mass ratio) and acidification (pH . 1). In addition the recovered lignin fraction contains 70 % mass hemicelluloses. The delignified, cellulose-rich bagasse recovered from these three ILs is exposed to enzyme saccharification. The saccharification (24 h, 15 FPU) of the cellulose mass in starting bagasse, achieved by these pretreatments rank as: [C2mim]OAc (83 %)>>[C2mim]Cl (53 %)=[C4mim]Cl(53%). Mass balance determinations accounted for 97 % of starting bagasse mass for the [C4mim]Cl pretreatment , 81 % for [C2mim]Cl and 79 %for [C2mim]OAc. For all three IL treatments, the remaining bagasse mass (not accounted for by mass balance determinations) is mainly (more than half) lignin that is not recoverable from the liquid fraction. After pretreatment, 100 % mass of both ions of all three ILs were recovered in the liquid fraction. Compositional characteristics of [C2mim]OAc treated solids such as low lignin, low acetyl group content and preservation of arabinosyl groups are opposite to those of chloride IL treated solids. The former biomass characteristics resemble those imparted by aqueous alkali pretreatment while the latter resemble those of aqueous acid pretreatments. The 100 % mass recovery of cellulose in [C2mim]OAc as opposed to 53 % mass recovery in [C2mim]Cl further demonstrates this since the cellulose glycosidic bonds are protected under alkali conditions. The alkyl chain length decrease in the imidazolium cation of these ILs imparts higher rates of dissolution and losses, and increases the severity of the treatment without changing the chemistry involved.

Analyzing the literature for the link between the conservative Islamic culture of Saudi Arabia and the design of sustainable housing

Saudi Arabia experiences housing shortage for mid and low-income families, which is caused by rapid population growth. This condition is worsened by the fact that the current housing supply has problems in meeting both sustainable requirements and cultural needs of those families. This paper aims to investigate the link between the unique conservative Saudi culture and the design of sustainable housing, while keeping the housing cost affordable for mid and low-income families. The paper is based on a review of literatures on the issues of the Islamic culture and how can they be integrated into the design process of a Saudi house. Findings from literature reveiw suggest several design requirements for accommodating the conservative Saudi Culture in low cost sustainable houses. Such requirements include the implementation of proper usage of windows, and house orientation with a courtyard inside rather than facing the main street will provide natural ventilation while maintaining privacy. The main contribution to the body of knowledge is that this is a new approach to sustainable housing in Saudi Arabia considering not only energy use and architectural design issues but also socio-cultural issues as an essential part of sustainability.

Cultural fitness for business process management : what is it and what is it worth?

While business process management (BPM) is often associated with large investments in IT systems and process analysis projects, the success of BPM initiatives largely depends on the cultural readiness of organizations for process management. In this article, we introduce a model that helps to understand the role of culture in managing business processes and to take the right investments into the development of organizational culture. For that purpose, we also describe an assessment tool that allows examining the supportiveness of an organizational culture for BPM initiatives. We show how the results of such an assessment help organizations to determine in which areas of a corporation investments in cultural change can be most beneficial.

Crime talk, FIFO workers and cultural conflict on the mining boom frontier

Australia is experiencing an unprecedented expansion in mining due to intense demand from Asian economies thirsty for Australia’s non-renewable resources, with over $260 billion worth of capital investment currently in the pipeline (BREE 10). The scale of the present boom coupled with the longer term intensification of competitiveness in the global resources sector is changing the very nature of mining operations in Australia. Of particular note is the increasingly heavy reliance on a non-resident workforce, currently sourced from within Australia but with some recent proposals for projects to draw on overseas guest workers. This is no longer confined, as it once was, to remote, short term projects or to exploration and construction phases of operations, but is emerging as the preferred industry norm. Depending upon project location, workers may either fly-in, fly-out (FIFO) or drive-in, drive-out (DIDO), the critical point being that these operations are frequently undertaken in or near established communities. Drawing primarily on original fieldwork in one of Australia’s mining regions at the forefront of the boom, this paper explores some of the local impacts of new mining regimes, in particular their tendency to undermine collective solidarities, promote social division and fan cultural conflict.

Toward cultural epidemiology : beyond epistemological hegemony

It is more than 10 years since the anthropologist DiGiacomo (1999) answered the question “Can there be a cultural epidemiology?” with disappointment, concluding ethnographic and epidemiological narratives are divergent not complementary. In the same year, the epidemiologist Krieger (1999, p. 1151) asked related questions about the epistemological foundations of epidemiology: “Epidemiology is–or is not—the basic science of public health. Epidemiology is—or is not—an objective science. Science and advocacy are—or are not—distinct and contrary endeavours.” Again in the same year the Indigenous researcher Smith (1999, p. 1) wrote, “From the vantage point of the colonized, a position from which I write, and choose to privilege, the term ‘research’ is inextricably linked to European imperialism and colonialism.” The act of conceptualizing and practicing cultural epidemiology thus brings with it a series of deep epistemological questions about the nature of knowledge production. The Western academy of health research assumes an intellectual and moral privilege to fill gaps in knowledge aimed at yielding improvements in health status. With such privilege comes responsibility, since the power to conceptualize health problems and their solutions deserves considerable critical, historical, and political reflexivity, particularly at the boundaries between dominant and oppressed cultural spaces...

The effect of ribbing on the energy flow between two rectangular plates coupled at right angle

This paper presents an analytical model to study the effect of stiffening ribs on vibration transmission between two rectangular plates coupled at right angle. Interesting wave attenuation patterns were observed by placing the stiffening rib either on the source or on the receiving plate. The result can be used to improve the understanding of vibration and for vibration control of more complex structures such as transformer tanks and machine covers.

Digital futures for cultural and media studies

An ambitious rendering of the digital future from a pioneer of media and cultural studies, a wise and witty take on a changing field, and our orientation to it Investigates the uses of multimedia by creative and productive citizen-consumers to provide new theories of communication that accommodate social media, participatory action, and user-creativity Leads the way for new interdisciplinary engagement with systems thinking, complexity and evolutionary sciences, and the convergence of cultural and economic values Analyzes the historical uses of multimedia from print, through broadcasting to the internet Combines conceptual innovation with historical erudition to present a high-level synthesis of ideas and detailed analysis of emergent forms and practices Features an international focus and global reach to provide a basis for students and researchers seeking broader perspectives