790 research outputs found

    Hot off the press! A comparative media analysis of energy storage framing in Canadian newspapers

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    The final publication is available at Elsevier via http://dx.doi.org/10.1016/j.erss.2018.06.011. © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/Energy storage (ES) is a keystone technology for advancing low-carbon energy transitions, yet energy system change continues to be influenced by socio-political acceptance of emerging innovations such as storage. An initial Canadian contribution to the social-scientific study of ES, we conduct a comparative media analysis of news coverage on storage technologies in the provinces of Alberta and Ontario. Applying the Socio-Political Evaluation of Energy Deployment (SPEED) framework, we analyse representations of ES risks and benefits in 143 articles drawn from top-circulating Canadian newspapers between 2007–2017. We then evaluate frame and narrative trends describing ES in these provinces. In doing so, we identify: (1) a generally optimistic national perspective on ES, despite regional variance in risk and benefit framing; (2) greater attention paid to high-profile, smaller-scale ES technologies; (3) a prominence of sustainability and transition narratives around ES; and (4) a positive temporal shift in ES discourse, reflecting changing regional energy priorities and Canada’s increasing commitment to clean energy development. Our findings provide insight on interprovincial differences in social perception on ES and identify possible drivers for these variations to help inform future ES research, deployment and policy strategies in Canada and other evolving national energy markets.This work was supported by the Natural Sciences and Engineering Research Council of Canada (NSERC) as part of the NSERC Energy Storage Technology (NEST) Network (grant number 468468)

    On the effect of Ti on Oxidation Behaviour of a Polycrystalline Nickel-based Superalloy

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    Titanium is commonly added to nickel superalloys but has a well-documented detrimental effect on oxidation resistance. The present work constitutes the first atomistic-scale quantitative measurements of grain boundary and bulk compositions in the oxide scale of a current generation polycrystalline nickel superalloy performed through atom probe tomography. Titanium was found to be particularly detrimental to oxide scale growth through grain boundary diffusion

    Factors influencing publication choice: why faculty choose open access

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    BACKGROUND: In an attempt to identify motivating factors involved in decisions to publish in open access and open archives (OA) journals, individual interviews with biomedical faculty members at the University of North Carolina at Chapel Hill (UNC-Chapel Hill) and Duke University, two major research universities, were conducted. The interviews focused on faculty identified as early adopters of OA/free full-text publishing. METHODS: Searches conducted in PubMed and PubMed Central identified faculty from the two institutions who have published works in OA/free full-text journals. The searches targeted authors with multiple OA citations during a specified 18 month period. Semi-structured interviews were conducted with the most prolific OA authors at each university. Individual interviews attempted to determine whether the authors were aware they published in OA journals, why they chose to publish in OA journals, what factors influenced their publishing decisions, and their general attitude towards OA publishing models. RESULTS & DISCUSSION: Fourteen interviews were granted and completed. Respondents included a fairly even mix of Assistant, Associate and Full professors. Results indicate that when targeting biomedical faculty at UNC-Chapel Hill and Duke, speed of publication and copyright retention are unlikely motivating factors or incentives for the promotion of OA publishing. In addition, author fees required by some open access journals are unlikely barriers or disincentives. CONCLUSION: It appears that publication quality is of utmost importance when choosing publication venues in general, while free access and visibility are specifically noted incentives for selection of OA journals. Therefore, free public availability and increased exposure may not be strong enough incentives for authors to choose open access over more traditional and respected subscription based publications, unless the quality issue is also addressed

    An exploration of ebook selection behavior in academic library collections

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    Academic libraries have offered ebooks for some time, however little is known about how readers interact with them while making relevance decisions. In this paper we seek to address that gap by analyzing ebook transaction logs for books in a university library

    A log analysis study of 10 years of ebook consumption in academic library collections

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    Even though libraries have been offering eBooks for more than a decade, very little is known about eBook access and consumption in academic library collections. This paper addresses this gap with a log analysis study of eBook access at the library of the University of Waikato. This in-depth analysis covers a period spanning 10 years of eBook use at this university. We draw conclusions about the use of eBooks at this institution and compare the results with other published studies of eBook usage at tertiary institutes

    Inner wellbeing: concept and validation of a new approach to subjective perceptions of wellbeing-India

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    © The Author(s) 2013. This article is published with open access at Springerlink.com. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.This paper describes the conceptual development of a multi-domain, psychosocial model of 'Inner Wellbeing' (IWB) and assesses the construct validity of the scale designed to measure it. IWB expresses what people think and feel they are able to be and do. Drawing together scholarship in wellbeing and international development it is grounded in field research in marginalised, rural communities in the global South. Results from research in India at two points in time (2011 and 2013) are reported. At Time 1 (n = 287), we were unable to confirm an eight-factor, correlated model as distinct yet interrelated domains. However, at Time 2 (n = 335), we were able to confirm a revised, seven-factor correlated model with economic confidence, agency and participation, social connections, close relationships, physical and mental health, competence and self-worth, and values and meaning (five items per domain) as distinct yet interrelated domains. In particular, at Time 2, a seven-factor, correlated model provided a significantly better fit to the data than did a one-factor model.This work is supported by the Economic and Social Research Council/Department for International Development Joint Scheme for Research on International Development (Poverty Alleviation) grant number RES-167-25-0507 ES/H033769/1. Special thanks are due to Chaupal and Gangaram Paikra, Pritam Das, Usha Kujur, Kanti Minjh, Susanna Siddiqui, and Dinesh Tirkey

    The unusual ISM in blue and dusty gas-rich galaxies (BADGRS)

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    The Herschel-ATLAS unbiased survey of cold dust in the local Universe is dominated by a surprising population of very blue (FUV-K 0.5 fHI=MHI/(M∗+M+HI)>0.5 ). Dubbed ‘Blue and Dusty Gas-Rich Sources’ (BADGRS) they have cold diffuse dust temperatures, and the highest dust-to-stellar mass ratios of any galaxies in the local Universe. Here, we explore the molecular interstellar medium in a representative sample of BADGRS, using very deep CO(J up =1,2,3) CO(Jup=1,2,3) observations across the central and outer disc regions. We find very low CO brightnesses (Tp = 5–30 mK), despite the bright far-infrared emission and metallicities in the range 0.5 < Z/Z⊙ < 1.0. The CO line ratios indicate a range of conditions with R 21 =T 21 b /T 10 b =0.6−2.1 R21=Tb21/Tb10=0.6−2.1 and R 31 =T 32 b /T 10 b =0.2−1.2 R31=Tb32/Tb10=0.2−1.2 . Using a metallicity-dependent conversion from CO luminosity to molecular gas mass, we find M H 2 /M d ∌7−27 MH2/Md∌7−27 and ÎŁ H 2 =0.5−6M ⊙ pc −2 ÎŁH2=0.5−6M⊙pc−2 , around an order of magnitude lower than expected. The BADGRS have lower molecular gas depletion time-scales (τd ∌ 0.5 Gyr) than other local spirals, lying offset from the Kennicutt–Schmidt relation by a similar factor to Blue Compact Dwarf galaxies. The cold diffuse dust temperature in BADGRS (13–16 K) requires an interstellar radiation field 10–20 times lower than that inferred from their observed surface brightness. We speculate that the dust in these sources has either a very clumpy geometry or a very different opacity in order to explain the cold temperatures and lack of CO emission. BADGRS also have low UV attenuation for their UV colour suggestive of an SMC-type dust attenuation curve, different star formation histories or different dust/star geometry. They lie in a similar part of the IRX-ÎČ space as z z ∌ 5 galaxies and may be useful as local analogues for high gas fraction galaxies in the early Universe
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