1,354 research outputs found

    Using a high fidelity CCGT simulator for building prognostic systems

    Get PDF
    Pressure to reduce maintenance costs in power utilities has resulted in growing interest in prognostic monitoring systems. Accurate prediction of the occurrence of faults and failures would result not only in improved system maintenance schedules but also in improved availability and system efficiency. The desire for such a system has driven research into the emerging field of prognostics for complex systems. At the same time there is a general move towards implementing high fidelity simulators of complex systems especially within the power generation field, with the nuclear power industry taking the lead. Whilst the simulators mainly function in a training capacity, the high fidelity of the simulations can also allow representative data to be gathered. Using simulators in this way enables systems and components to be damaged, run to failure and reset all without cost or danger to personnel as well as allowing fault scenarios to be run faster than real time. Consequently, this allows failure data to be gathered which is normally otherwise unavailable or limited, enabling analysis and research of fault progression in critical and high value systems. This paper presents a case study of utilising a high fidelity industrial Combined Cycle Gas Turbine (CCGT) simulator to generate fault data, and shows how this can be employed to build a prognostic system. Advantages and disadvantages of this approach are discussed

    Exploring student victimisation and wellbeing in the UK higher education context

    Get PDF
    Research into student bullying in Higher Education (HE) has been limited and most is based on childhood bullying research. Bullying in HE could disrupt student mental health and wellbeing at university - a topic that has recently gained traction. Additionally, marginalised student groups may be more at risk (e.g. LGB+). Focus groups were used to explore students’ conceptualisations of bullying and identify differences between childhood and emerging adulthood (EA) bullying behaviour. Themes identified were power imbalances; tactics of HE bullying; bullying for personal or social gain, and; justifications and minimisations for not intervening (bystander intervention). Examples of bullying behaviour from this first study supplemented the childhood and adult bullying literature to create a new HE bullying scale. The scale was tested on two samples to identify the factor structure (N = 243, N =304). The third survey study (N = 441) adopted a correlational design using the developed scale alongside measures of wellbeing, childhood victimisation, and potential mediator variables, such as university belongingness, social connectedness, and Internal Working Models (IWMs). Group differences were found on victimisation, IWMs, social connectedness, and university belonging, especially for SES and sexual orientation, evidencing the disadvantages that minority groups may suffer within HE. Regression-based path-analyses found that IWMs, university bullying, social connectedness, and university belonging mediated the links between childhood victimisation and current wellbeing. Finally, UK university anti-bullying policies were examined. Policy length and quality varied between universities and a review of content is recommended based on the earlier study findings. This research has produced a new university bullying scale and has also explored mechanisms through which childhood victimisation may have negative effects on current HE student wellbeing. The importance of self- and other- beliefs as well as the social context (e.g. belonging) is stressed

    Yellow Fever

    Get PDF
    Yellow Fever is a disease that is most common in Africa and South America that causes severe discomfort and has a high mortality rate, of the estimated over 200,000 cases of Yellow Fever, 30,000 cases end in death. Since it is so dangerous, it is important to know how to prevent and treat it if someone ever wanted to travel to either of those places. The disease is relatively easy to avoid, all someone really need to do is avoid mosquitoes either by wearing protective clothing or by avoiding high density mosquito areas. If one were get Yellow Fever, they would surely regret it, since the side effects include head and muscle aches, fever, vomiting blood, yellow skin and eyes, seizures and the possibilities of a coma or even death (University of Maryland Medical Center, 2015)

    Building character through youth social action: research report

    Get PDF
    This report is the culmination of research carried out between March-December 2014 with youth social action providers and young people. The purpose of the report is to explore the link between character, virtues and youth social action. Through textual analysis of youth social action providers’ websites and communications, interviews with senior leaders of these providers, as well as young people who experience their programmes, this research aimed at a better understanding of the link between character development and youth social action. This research has been undertaken with considerable input from interested stakeholders since its inception – in particular, members of Step Up To Serve’s crosssector Data and Quality Assurance group and the sub-group on character. These groups have provided invaluable advice in shaping this project. In addition, the initial findings from this research were presented at a consultation held at St George’s House, Windsor, in September 2014 (Jubilee Centre for Character and Virtues, 2014a). Representatives from government departments, education, academia, and the voluntary and corporate sectors participated and their comments have also informed this report

    Making sense of child and adolescent mental health services (CAMHS):An audit of the referral journey and the use of routine outcome measures (ROMS)

    Get PDF
    Background: There is increased emphasis on the national reporting of Routine Outcome Measures (ROMS) as a way of improving Child and Adolescent Mental Health Services (CAMHS). This data needs to be viewed in context so that reasons for outcome completion rates are understood and monitored over time. Method: We undertook an in-depth prospective audit of consecutive referrals accepted into the Bath and North East Somerset, Swindon and Wiltshire (BSW) CAMHS service from November 2017 to January 2018 (n = 1074) and April to September 2019 (n = 1172). Results: Across both audits 90% of those offered an appointment were seen with three quarters completing baseline ROMS. One in three were not seen again with around 30% still being open to the service at the end of each audit. Of those closed to the service, paired ROMS were obtained for 46% to 60% of cases. There were few changes in referral problems or complexity factors over time. Conclusion: Understanding the referral journey and the reasons for attrition will help to put nationally collected data in context and can inform and monitor service transformation over time.</p

    A model for children’s digital citizenship in India, Korea, and Australia: Stakeholder engagement principles

    Get PDF
    This white paper communicates research activities and findings investigating digital safety and digital citizenship through multistakeholder collaborations in three countries—India, South Korea, and Australia. Performed by an Edith Cowan University-based research team from the ARC Centre of Excellence for the Digital Child, supported by the LEGO Group, this research additionally responds to many recent policy and practice reviews arguing for institutional and policy engagement in the Asia Pacific (APAC) that build children’s digital safety, literacy and citizenship. These include the UNESCO data-driven report, Digital Kids Asia Pacific (DKAP): Insights into children’s digital citizenship (UNESCO, 2019), an earlier UNESCO review of policy, Building digital citizenship in Asia Pacific through safe, effective and responsible use of ICT (UNESCO, 2016) and a UNICEF scoping paper, Digital literacy for children (Nascimbeni & Vosloo, 2019). These reports highlight the importance of stakeholders engaging with new ways to foster digital literacy and digital citizenship..

    Children’s digital citizenship project: Your perspectives: A report for children

    Get PDF
    This report talks about a teamwork project between the LEGO Group, the Australian Research Council (ARC) Centre of Excellence for the Digital Child (Digital Child) and Edith Cowan University (ECU). In 2022, the LEGO Group, ECU and Digital Child researchers teamed up to ask children and adults in India, Korea and Australia about digital citizenship. We collected all this information together and compared our results, and then made some suggestions about how we can all do things better to help kids be safer, smarter, and happier online

    Collaboration Between University Researchers and the Department of Environment and Natural Resources to Improve the Approvals Framework for Tree Registration

    Get PDF
    The objective of this ACIAR project is to 'Assist DENR to overcome policy implementation constraints to tree registration and log transport currently restricting access to markets', hence research in this project is designed to produce information relevant for policy development and reform

    Multi-frequency bioimpedance in human muscle assessment

    No full text
    Bioimpedance analysis (BIA) is a well-known and tested method for body mass and muscular health assessment. Multi-frequency BIA (mfBIA) equipment now makes it possible to assess a particular muscle as a whole, as well as looking at a muscle at the fiber level. The aim of this study was to test the hypothesis that mfBIA can be used to assess the anatomical, physiological, and metabolic state of skeletal muscles. mfBIA measurements focusing on impedance, resistance, reactance, phase angle, center frequency, membrane capacitance, and both extracellular and intracellular resistance were carried out. Eight healthy human control subjects and three selected cases were examined to demonstrate the extent to which this method may be used clinically, and in relation to training in sport. The electrode setup is shown to affect the mfBIA parameters recorded. Our recommendation is the use of noble metal electrodes in connection with a conductance paste to accommodate the typical BIA frequencies, and to facilitate accurate impedance and resistance measurements. The use of mfBIA parameters, often in conjunction with each other, can be used to reveal indications of contralateral muscle loss, extracellular fluid differences, contracted state, and cell transport/metabolic activity, which relate to muscle performance. Our findings indicate that mfBIA provides a noninvasive, easily measurable and very precise momentary assessment of skeletal muscles
    • …
    corecore