An LMI-based functional estimation scheme of large-scale time-delay systems with strong interconnections

In this paper, the problem of distributed functional state observer design for a class of large-scale interconnected systems in the presence of heterogeneous time-varying delays in the interconnections and the local state vectors is considered. The resulting observer scheme is suitable for strongly coupled subsystems with multiple time-varying delays, and is shown to give better results for systems with very strong interconnections while only some mild existence conditions are imposed. A set of existence conditions are derived along with a computationally simple observer constructive procedure. Based on the Lyapunov-Krasovskii functional method (LKF) in the framework of linear matrix inequalities (LMIs), delay-dependent conditions are derived to obtain the observer parameters ensuring the exponential convergence of the observer error dynamics. The effectiveness of the obtained results is illustrated and tested through a numerical example of a three-area interconnected system.

Exponential stability of time-delay systems via new weighted integral inequalities

In this paper, new weighted integral inequalities (WIIs) are first derived based on Jensen's integral inequalities in single and double forms. It is theoretically shown that the newly derived inequalities in this paper encompass both the Jensen inequality and its most recent improvement based on Wirtinger's integral inequality. The potential capability of WIIs is demonstrated through applications to exponential stability analysis of some classes of time-delay systems in the framework of linear matrix inequalities (LMIs). The effectiveness and least conservativeness of the derived stability conditions using WIIs are shown by various numerical examples.

C'mon guys! A program to facilitate father involvement in the primary school environment

This article is written to provide a case study example of a program developed to encourage fathers' engagement with their children in the primary school environment. C'mon Guys! was delivered in a Primary School in Victoria, Australia (unnamed to protect the privacy of the participants). The article begins by first describing the community in which C'mon Guys! was offered and goes on to outline the literature related to aspects pertinent to the program such as father involvement in the lives of children at school, and the role of the social worker in facilitating this type of groupwork in the school setting. Next, the aims of the program are discussed with particular reference to its design, social learning theory, systems theory and groupwork principles and processes. The outcomes of C'mon Guys! are then discussed noting the limitations of the program as well as identifying the extrinsic and intrinsic benefits for the children, their fathers and the community.

The benefit : a well-written entrepreneurial business plan is to an entrepreneur what a midwife is to an expecting mother

The evaluation of new ventures often involves two key aspects of entrepreneurial business plans: how best to write them and how best to rate (evaluate) them. Ultimately the performance of the venture should be the definitive criterion of quality. Surprisingly, the writing, rating and performance effects of entrepreneurial business plans (EBPs) comprise three related but under researched areas. This article empirically tested principles for writing and rating entrepreneurial business plans to draw inferences on how to improve the private equity investment evaluation process. A simplified perspective of General Systems Theory guided our empirical investigation of the input and outcome of the VC investment decision. Our empirical investigation reveals that entrepreneurial business plans that comport with the writing principles from the literature improve a new venture's likelihood of success.

Is the quality of entrepreneurial business plans related to the outcome of a new venture?

The evaluation of new ventures often involves two key aspects of entrepreneurial business plans: how best to write them and how best to rate (evaluate) them. Ultimately the performance of the venture should be the definitive criterion of quality. Surprisingly, the writing, rating and performance effects of entrepreneurial business plans (EBPs) comprise three related but under researched areas. This paper empirically tested principles for writing and rating entrepreneurial business plans to draw inferences on how to improve the private equity investment evaluation process. A simplified perspective of General Systems Theory guided our empirical investigation of the input and outcome of the VC investment decision. Our empirical investigation reveals that entrepreneurial business plans that comport with the writing principles from the literature improve a new venture’s likelihood of success.

The origins of competency-based training

This article attempts to trace the origins of competency-based training (CBT), the theory of vocational education that underpins the National Training Framework in Australia. A distinction is made between societal and theoretical origins. This paper argues that CBT has its societal origins in the United States of America during the 1950s, 60s and 70s. Public debate and government initiatives centred on the widely held view that there was a problem with the quality of education in the United States. One of the responses to this crisis was the Performance-Based Teacher Education movement which synthesised the theory of education that became CBT.The theoretical origins of CBT derive principally from behaviourism and systems theory - two broad theoretical orientations that influenced educational debate in the United States during the fomative period of CBT. Most of the component parts of CBT were contributed by specialists with a background in one or both of these theoretical orientations.

Security as an element in environmental assessment and decision making

he prominence of global warming as an environmental issue has illustrated the close relationship between natural resources, ecosystems and global security. Whilst environmental decision making often uses techniques such as economic valuation and risk management, the security component is often not considered, at least not from a security analyst’s perspective. Yet environmental security considerations can be global, regional and/or national in impact. Environmental change and policy can effect human health and well being as well as initiating conflict; it can affect the existence of life itself. These aspects are firmly in the domain of the security discipline although the protection of the global ecosystem has not traditionally been considered by those who create security policy. The idea of environmental/ecological security ranges from the eco-centric approach which examines the impact of human activities that impact on the security of the natural systems to the more traditional anthropocentric perspectives that look at varied issues such as conflict caused by natural resource competition and environmental degradation, and the greening of military operations. This paper will assert that the inclusion of the security factor in policy creation and environmental assessments is essential to give richer solutions to these complex socio-economic and ecological situations. Systems theory over the last few decades has emphasised the inclusion of as many perspectives on messy problems as possible to provide truly systemic outcomes. It is posited that the addition of such concepts as threat analyses will produce more effective and sustainable outcomes.

Attitude change in employment of people who have a disability

This thesis is set in Ecological Systems Theory and found that direct experience with people who have a disability, rather than constructed scenarios, is the key to positive attitude change. Future research should utilize the powerful role stereotyped groups themselves have in attitude change through their own development and interaction with the environment.

Towards a framework for implementing individual funding based on an Australian case study

Although individual funding is increasingly being used around the globe as a mechanism to fund social care, its implementation is proving to be problematic and implementation strategies are not well developed. This paper proposes a framework for the successful introduction and implementation of individual funding programs based on the analysis of data collected in a qualitative case study conducted in an Australian not-for-profit disability agency over a 4-year period from 2003 to 2007. Data were gathered through participant observation and interviews with program participants and managers, and the findings were validated with those involved. Bronfenbrenner’s ecological systems theory is used to analyze the findings from a micro, meso, exo, and macro perspective. The following factors were found to be important for successful implementation: the meaningful involvement of the person with disability in decision-making; adequate resources; access to information and appropriate supports; suitable activities being available; knowledge of policies and procedures; policies ensuring oversight and responsible accountability; employment conditions for workers being safeguarded; and support for staff and managers to adjust to their new roles. Knowledge of effective implementation strategies is important for disability agencies and for governments promoting individual funding because this radically different funding arrangement requires new implementation strategies.

A new sliding mode-based learning control scheme

 A new sliding mode-based learning control scheme for a class of SISO dynamic systems is developed in this paper. It is seen that, based on the most recent information on the closed-loop stability, a recursive learning chattering-free sliding mode controller can be designed to drive the closed-loop dynamics to reach the sliding mode surface in a finite time, on which the desired closed-loop dynamics with the zero-error convergence can be achieved.

Enabling innovation in information technology outsourcing : an empirical study

Information technology outsourcing has become a pervasive and important phenomenon in business organizations and there is substantial evidence about its benefits and pitfalls. Initially, firms used outsourcing as a way to lower costs, gain access to expertise and focus on core activities. Recently, there is a shift in focus and more firms are outsourcing to attain innovative products and services. However, current research is still unclear about how innovation can be achieved through outsourcing. Drawing predominantly from the dynamic capability theory, the objective of this paper is to explore how absorptive capacity unfolds as a process within and between firms when client firms outsource their information technology services with expectations of innovation generation. In this paper, we propose a research model that links absorptive capacity to innovation generation. We draw on three case studies to focus on how absorptive capacity, as a process, impacts innovation generation. Results show that assimilation and transformation stages are critical in generating radical innovation while acquisition and exploitation play a key role in incremental innovation. The implications of these findings for both researchers and practitioners are discussed.

Condition monitoring of induction motors : A review and an application of an ensemble of hybrid intelligent models

In this paper, a review on condition monitoring of induction motors is first presented. Then, an ensemble of hybrid intelligent models that is useful for condition monitoring of induction motors is proposed. The review covers two parts, i.e.; (i) a total of nine commonly used condition monitoring methods of induction motors; and (ii) intelligent learning models for condition monitoring of induction motors subject to single and multiple input signals. Based on the review findings, the Motor Current Signature Analysis (MCSA) method is selected for this study owing to its online, non-invasive properties and its requirement of only single input source; therefore leading to a cost-effective condition monitoring method. A hybrid intelligent model that consists of the Fuzzy Min-Max (FMM) neural network and the Random Forest (RF) model comprising an ensemble of Classification and Regression Trees is developed. The majority voting scheme is used to combine the predictions produced by the resulting FMM-RF ensemble (or FMM-RFE) members. A benchmark problem is first deployed to evaluate the usefulness of the FMM-RFE model. Then, the model is applied to condition monitoring of induction motors using a set of real data samples. Specifically, the stator current signals of induction motors are obtained using the MCSA method. The signals are processed to produce a set of harmonic-based features for classification using the FMM-RFE model. The experimental results show good performances in both noise-free and noisy environments. More importantly, a set of explanatory rules in the form of a decision tree can be extracted from the FMM-RFE model to justify its predictions. The outcomes ascertain the effectiveness of the proposed FMM-RFE model in undertaking condition monitoring tasks, especially for induction motors, under different environments. © 2014 Elsevier Ltd. All rights reserved.

Adoption of social media as a communication medium : a study of theoretical foundations

The continuing popularity and adoption of social media by the general public and the realisation of its potential customer engagement power by business, is highlighting the importance of social media to ongoing business activities and strategies. However, current research that is more focused around the potential power of social media generates little debate of the adoption factors driving public use of social media as a communication medium. Even though businesses have an opportunity to broaden their reach by adding social media to the communication strategic-mix, the dearth of informed discussions relating to theoretical underpinnings associated with the public adaptation of social media as a communication medium fails to clearly inform strategic business decisions regarding adoption decision-making. This research study conducted in the Australian context queries established theoretical frameworks by asking the question; what theoretical foundations do influence the social media adoption by the intended audience of communication?

Simple techniques for a more inclusive curriculum

Students from low-socioeconomic status or non-English speaking backgrounds, or who have a disability, are Indigenous, or live in a remote area all generally score lower than average grades in Australian higher education. Deakin University’s Faculty of Arts & Education trialled a range of inclusive curriculum strategies in two units during 2015, with the aims of finding and embedding techniques that worked to improve learning outcomes of students in these groups, and at the same time building staff capacity in delivering inclusive curriculum. Staff from across academic and professional divisions collaborated to develop the techniques. This presentation outlines the techniques trialled, their varying impacts and critical success factors, as identified through quantitative and qualitative evaluation methods. Richly annotated readings, visual format seminar papers, and a formative peer assessment activity were found to be the most successful techniques. The presentation also describes briefly the staff capacity-building approach, based on activity systems theory.

Sartori reconsidered: toward a new predominant party system

Despite the success of his party systems theory, Giovanni Sartori’s predominant party system is a type that is consistently avoided by party systems scholars, yet the reasons for this have been unclear. This article exposes the flaws in Sartori’s predominant party system, but we also argue that it remains a useful concept and, consequently, that the literature’s rejection of predominance and retreat to the cruder dominance notion is unnecessary. Instead, we amend predominance to ensure its coherence within Sartori’s typology and consistency with his party systems theory. We show that our amendments improve the value of predominance as a category for empirical analysis of the effects of party systems.