Currents, Waves and Turbulence Measurement: A view from multiple Industrial-Academic Projects in Tidal Stream Energy

This is the author accepted manuscript. The final version is available from IEEE via the DOI in this recordTidal Stream Energy is considered a regular, predictable and dense energy source with potential to make a significant contribution to our future energy needs. Development of the industry, from resource assessment to device design and operation, requires characterisation of the flow environment at a variety of spatial and temporal scales at tidal energy sites. Demand for flow characterisation arises from companies developing, installing and operating tidal turbine prototypes or small arrays in locations from Scotland to France to Canada. Flow characterisation for tidal stream applications relies on the measurement of water velocity at the relevant scales, yet given the non-uniformity of the flow field, no single instrument measures all the necessary data inputs required by the sector. This paper provides an overview of a variety of current, surface wave and turbulence metrics of industrial relevance to tidal stream and discusses methods employed to secure these datasets. The use of variants of acoustic current profilers is presented, which have been utilised and developed on previous and ongoing industrialacademic projects, including ReDAPT (ETI, UK), FloWTurb (EPSRC, UK) and RealTide (EC H2020, EU). These variants feature differing numbers of acoustic transducers and varying geometrical configurations with installations at both seabed locations and atop operating tidal stream energy converters. Ongoing development of advanced sensor configuration is discussed, aiming to achieve resilient, high resolution threedimensional measurement of mean and turbulent flow tailored for tidal energy applications. The paper gives practitioners and researchers an overview of tidal stream flow characterisation and practical lessons learnt.Engineering and Physical Sciences Research Council (EPSRC)European Union Horizon 202

International large-scale assessments, affective worlds and policy impacts in education

© 2018 Informa UK Limited, trading as Taylor & Francis Group. This paper examines the impact of the Organisation for Economic Cooperation and Development’s Programme for International Student Assessment (PISA) in two national policy contexts: Canada and Australia. Drawing on theories of globalisation and affect, the paper explores ‘catalyst data’ and its effects in these contexts to show how affective responses to mediations of PISA performance have become important levers for policy change. Two empirical cases of the role of data in the globalisation of schooling are discussed. The first case examines responses in Canada to the PISA 2012 results, which generated senses of anxiety among parents that coalesced into a view that Albertan schools faced a mathematics crisis. The second case interrogates how, since PISA 2009, a narrative about the declining quality of Australian schooling has become dominant in political discourse and in media representations. The paper compares and contrasts the affective effects of data across both contexts

Argumentation in Educational Policy Disputes: Competing Visions of Quality and Equity

© 2016, Copyright © The College of Education and Human Ecology, The Ohio State University. Current debates about test-based accountability policies revolve around questions of how to ensure that all students have access to high-quality schools and teachers. Whether and how one can meet this goal depend, in part, on the nature of the arguments that policy proponents and opponents mobilize in these debates. This article examines these arguments, focusing specifically on how policymakers and educators justify and critique prominent test-based accountability policies, the OECD's PISA, and enhanced teacher evaluation. Drawing on pragmatic sociology and our research on these policies, we show how policy proponents mobilize industrial, market, and civic arguments to define both quality and equity as the efficient production of standardized test scores. In contrast, educators more often employ civic and domestic arguments that expand the definition of educational quality, but do not engage issues of educational equity. We explore how educators can mobilize arguments and the news media to expand the definition of educational quality and equity to enrich both our vision of education and our debates about it

Lunar Flashlight: Illuminating the Lunar South Pole

Recent reflectance data from LRO instruments suggest water ice and other volatiles may be present on the surface in lunar permanentlyshadowed regions, though the detection is not yet definitive. Understanding the composition, quantity, distribution, and form of water and other volatiles associated with lunar permanently shadowed regions (PSRs) is identified as a NASA Strategic Knowledge Gap (SKG) for Human Exploration. These polar volatile deposits are also scientifically interesting, having the potential to reveal important information about the delivery of water to the Earth- Moon system

Lunar Flashlight: Illuminating the Moon's South Pole

Recent reflectance data from LRO instruments suggest water ice and other volatiles may be present on the surface in lunar permanently shadowed regions, though the detection is not yet definitive. Understanding the composition, quantity, distribution, and form of water and other volatiles associated with lunar permanently shadowed regions (PSRs) is identified as a NASA Strategic Knowledge Gap (SKG) for Human Exploration. These polar volatile deposits are also scientifically interesting, having the potential to reveal important information about the delivery of water to the Earth-Moon system

Pedagogies of critique : struggling with what and how to think

No abstract available