A new approach for power system black-start decision-making with vague set theory

Power system restoration after a large area outage involves many factors, and the procedure is usually very complicated. A decision-making support system could then be developed so as to find the optimal black-start strategy. In order to evaluate candidate black-start strategies, some indices, usually both qualitative and quantitative, are employed. However, it may not be possible to directly synthesize these indices, and different extents of interactions may exist among these indices. In the existing black-start decision-making methods, qualitative and quantitative indices cannot be well synthesized, and the interactions among different indices are not taken into account. The vague set, an extended version of the well-developed fuzzy set, could be employed to deal with decision-making problems with interacting attributes. Given this background, the vague set is first employed in this work to represent the indices for facilitating the comparisons among them. Then, a concept of the vague-valued fuzzy measure is presented, and on that basis a mathematical model for black-start decision-making developed. Compared with the existing methods, the proposed method could deal with the interactions among indices and more reasonably represent the fuzzy information. Finally, an actual power system is served for demonstrating the basic features of the developed model and method.

Making a point of difference : the glocalised ecology of the International Baccalaureate Diploma in Australian schools

The International Baccalaureate Diploma is an independent, globally available curriculum currently enjoying rapid uptake in government systems as an alternative curriculum. This paper explores the logic of its consumption in three case study schools across different states of Australia, and the relational ‘points of difference’ it creates in each local context and its curricular market. The analysis uses a typology of goods to describe the nature and dynamics of the IBD’s glocalised ecology of in each site. The conclusion argues the success of the IBD as a curricular alternative risks eroding its appeal as a positional good.

Book review : Olivier Corten, The Law Against War

Olivier Corten’s The Law Against War is a comprehensive, meticulously-researched study of contemporary international law governing the use of armed force in international relations. As a translated and updated version of a 2008 book published in French, it offers valuable insights into the positivist methodology that underpins much of the European scholarship of international law. Corten undertakes a rigorous analysis of state practice from 1945 onwards, with a view to clarifying the current meaning and scope of international law’s prohibition on the use of force. His central argument is that the majority of states remain attached to a strict interpretation of this rule. For Corten, state practice indicates that the doctrines of anticipatory self-defence, pre-emptive force and humanitarian intervention have no basis in contemporary international law. His overall position accords with a traditional, restrictive view of the circumstances in which states are permitted to use force...

Existential place-making : the dialogical realms of design for dwelling with disability

The world of disability is often neglected or taken for granted in able-bodied society. Apart from the challenge that disability is a social construct (Linton, 1998, 2006; Longmore, 2003; Thompson, 1997) there is an impact on the people with disability that they either feel left out or they don’t belong in the larger community. The able-bodied community is also left with very little knowledge or no sensitivity towards people with disability. These internal whirlpools do not contribute to any community only to create larger gaps and higher differences between the groups of people. Peace (2010) claims that disability is something imposed on to a person on top of a physical impairment. Nord (2008) advocates that while environmental barriers and social attitudes are crucial aspects of a person’s experience, they can indeed disable a person. The study reported high-lights what is home for people with disability and their family members. The way the person with disability and family members without disability share the same home and nurture personal relationships with each other demands greater attention. This research sheds light on the intricate relationships that exists between the family members including person with disability and their built environment. These existential connections provide a holistic viewpoint and the glimpse into the lived experiences of homes for people with disability and their care-givers. Concepts of universal design or barrier free design have not been successful (Connell and Sanford, 1999) in revealing in-depth the nature of place-making for people with disability and their care-givers. Such studies fail to incorporate the holistic needs of individuals with disability and their family members in terms of their bodily, visceral, emotional, social, psycho-social, intuitive, spiritual and temporal needs, to name a few (Franz, Bitner, 2010). This paper reports on some preliminary findings on phenomena of dwelling for people with different kinds of disability and their care-givers sharing the same home from an interior design perspective.

Using mobile technology and augmented reality to increase data reliability for environmental assessment

Climate change and land use pressures are making environmental monitoring increasingly important. As environmental health is degrading at an alarming rate, ecologists have tried to tackle the problem by monitoring the composition and condition of environment. However, traditional monitoring methods using experts are manual and expensive; to address this issue government organisations designed a simpler and faster surrogate-based assessment technique for consultants, landholders and ordinary citizens. However, it remains complex, subjective and error prone. This makes collected data difficult to interpret and compare. In this paper we describe a work-in-progress mobile application designed to address these shortcomings through the use of augmented reality and multimedia smartphone technology.

Culture counts in making Chinese maths-smart

Chinese Australians consistently outperform their peers in mathematics and according to QUT researcher Michael Mu this is not only because of pushy parents or motivated students.

The sixth 48 hour game making challenge (2012)

Game jams provide design researchers with extraordinary opportunity to watch creative teams in action and recent years have seen a number of projects which seek to illuminate the design process as seen in these events. For example, Gaydos, Harris and Martinez discuss the opportunity of the jam to expose students to principles of design process and design spaces (2011). Rouse muses on the game jam ‘as radical practice’ and a ‘corrective to game creation as it is normally practiced’. His observations about his own experience in a jam emphasise the same artistic endeavour forefronted earlier, where the experience is about creation that is divorced from the instrumental motivations of commercial game design (Rouse 2011) and where the focus is on process over product. Other participants remark on the social milieu of the event as a critical factor and the collaborative opportunity as a rich site to engage participants in design processes (Shin et al, 2012). Shin et al are particularly interested in the notion of the site of the process and the ramifications of participants being in the same location. They applaud the more localized event where there is an emphasis on local participation and collaboration. For other commentators, it is specifically the social experience in the place of the jam is the most important aspect (See Keogh 2011), not the material site but rather the physical embodied experience of ‘being there’ and being part of the event. Participants talk about game jams they have attended in a similar manner to those observations made by Dourish where the experience is layered on top of the physical space of the event (Dourish 2006). It is as if the event has taken on qualities of place where we find echoes of Tuan’s description of a particular site having an aura of history that makes it a very different place, redolent and evocative (Tuan 1977). Re-presenting the experience in place has become the goal of the data visualisation project that has become the focus of our own curated 48hr game jam. Taking our cue from the work of Tim Ingold on embodied practice, we have now established the 48hr game making challenge as a site for data visualisation research in place.

Internet and e-commerce law, business and policy

Over the last two decades, the internet and e-commerce have reshaped the way we communicate, interact and transact. In the converged environment enabled by high speed broadband, web 2.0, social media, virtual worlds, user-generated content, cloud computing, VoIP, open source software and open content have rapidly become established features of our online experience. Business and government alike are increasingly using the internet as the preferred platform for delivery of their goods and services and for effective engagement with their clients. New ways of doing things online and challenges to existing business, government and social activities have tested current laws and often demand new policies and laws, adapted to the new realities. The focus of this book is the regulation of social, cultural and commercial activity on the World Wide Web. It considers developments in the law that have been, and continue to be, brought about by the emergence of the internet and e-commerce. It analyses how the law is applied to define rights and obligations in relation to online infrastructure, content and practices.

Smart demand side management of low-voltage distribution networks using multi-objective decision making

A novel intelligent online demand side management system is proposed for peak load management in low-voltage distribution networks. This method uses low-cost controllers with low-bandwidth two-way communication installed in custumers’ premises and at distribution transformers to manage the peak load while maximising customer satisfaction. A multi-objective decision making process is proposed to select the load(s) to be delayed or controlled. The efficacy of the proposed control system is verified by simulation of three different feeder types.

Implementing the Clean Development Mechanism in Fiji : opportunities and barriers in the energy sector

The Clean Development Mechanism (CDM) has been praised for its ingenuity in mobilising finance to implement sustainable development practices in non-industrialised countries (known as Non-Annex 1 parties under the Kyoto Protocol). During the first commitment period of the Kyoto Protocol (2008-2012), a large number of clean development mechanism projects have been registered with the CDM board. In addition to the large number of registered CDM projects, there are significant numbers of proposed projects stalled in implementation due to the cumbersome and lengthy CDM approval process. Despite this regulatory criticism it is recognised that the role performed by the CDM is essential for achieving a significant reduction in global green house gas emissions. This is because the CDM funds sustainable development in countries that lack capacity to do so on their own. It is anticipated that some form of CDM instrument will continue post the 2012 timeframe and that reform of the mechanism will be focused around making the mechanism’s approval and implementation processes faster and more efficient.

Shifting global powers and international law : challenges and opportunities [Challenges of Globalisation series]

This book examines the influence of emerging economies on international legal rules, institutions and processes. It describes recent and predicted changes in economic, political and cultural powers, flowing from the growth of emerging economies such as China, India, Brazil, South Africa and Russia, and analyses the influence of these changes on various legal frameworks and norms. Its contributors come from a variety of fields of expertise, including international law, politics, environmental law, human rights, economics and finance. The book begins by providing a broad analysis of the nature of the shifting global dynamic in its historical and contemporary contexts, including analysis of the rise of China as a major economic and political power and the end of the period of United States domination in international affairs. It illustrates the impact of these changes on states’ domestic policies and priorities, as they adapt to a new international dynamic. The authors then offer a range of perspectives on the impact of these changes as they relate to specific regimes and issues, including climate change regulation, collective security, indigenous rights, the rights of women and girls, environmental protection and foreign aid and development. The book provides a fresh and comprehensive analysis of an issue with extensive implications for international law and politics.

Preceptorship : making a difference

A preceptor project at the Royal Brisbane and Women's Hospital in Queensland, Australia, explored existing levels of preceptorship support during the transition processes of newly employed or transferred nurses and midwives. Initiatives adopted have enhanced the implementation and maintenance of preceptorship principles and communication processes and defined accountability and responsibilities. Outcomes have contributed to enhanced role clarity, improved communication, increased support for teaching and learning, and infrastructure processes to facilitate the preceptor-preceptee relationship and increased retention.

Assisting a suicide : potential succession law consequences

The recent criminal law decisions where people have been convicted of aiding suicide raise important legal and ethical issues in relation to whether euthanasia should be legalised. These cases also raise issues of great significance for succession lawyers. Where, as in cases such as Nielsen and Justins, the person convicted of aiding a suicide is a principal beneficiary under the will of the deceased, various legal consequences, such as: forfeiture of the interest under the will; liability for breach of fiduciary obligation; and/or a finding of undue influence, may follow which may result in loss of such benefit.

To separate or not to separate? Parental decision-making regarding the separation of twins in the early years of schooling

In recent times concerns about possible adverse effects of early separation and advocacy for individual rights have resulted in a movement away from organizational level policies about the separation of twin children as they enter school. Instead, individualized approaches that focus on the twin children’s characteristics and family perspectives have been proposed. This study, conducted in Australia where all but a few families had choice about the class placement of their twin children, questioned parents (N = 156) about their placement decisions. Results indicated that most parents opted for placement together in the early years of schooling. The choice to separate twins at school entry was associated with parent identification of risk in the twin relationship, while being kept together was associated with parent identification of absence of such risk. The findings are discussed in light of the current evidence against separation, and suggest that parent choices regarding the separation of twin children in the early years are informative to educational policy and practice.

Modeling as a means for making powerful ideas accessible to children at an early age

The SimCalc Vision and Contributions Advances in Mathematics Education 2013, pp 419-436 Modeling as a Means for Making Powerful Ideas Accessible to Children at an Early Age Richard Lesh, Lyn English, Serife Sevis, Chanda Riggs … show all 4 hide » Look Inside » Get Access Abstract In modern societies in the 21st century, significant changes have been occurring in the kinds of “mathematical thinking” that are needed outside of school. Even in the case of primary school children (grades K-2), children not only encounter situations where numbers refer to sets of discrete objects that can be counted. Numbers also are used to describe situations that involve continuous quantities (inches, feet, pounds, etc.), signed quantities, quantities that have both magnitude and direction, locations (coordinates, or ordinal quantities), transformations (actions), accumulating quantities, continually changing quantities, and other kinds of mathematical objects. Furthermore, if we ask, what kind of situations can children use numbers to describe? rather than restricting attention to situations where children should be able to calculate correctly, then this study shows that average ability children in grades K-2 are (and need to be) able to productively mathematize situations that involve far more than simple counts. Similarly, whereas nearly the entire K-16 mathematics curriculum is restricted to situations that can be mathematized using a single input-output rule going in one direction, even the lives of primary school children are filled with situations that involve several interacting actions—and which involve feedback loops, second-order effects, and issues such as maximization, minimization, or stabilizations (which, many years ago, needed to be postponed until students had been introduced to calculus). …This brief paper demonstrates that, if children’s stories are used to introduce simulations of “real life” problem solving situations, then average ability primary school children are quite capable of dealing productively with 60-minute problems that involve (a) many kinds of quantities in addition to “counts,” (b) integrated collections of concepts associated with a variety of textbook topic areas, (c) interactions among several different actors, and (d) issues such as maximization, minimization, and stabilization.