60 research outputs found

    Governance of the London 2012 Olympic Games legacy

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    © The Author(s) 2011. This is the author's accepted manuscript. The final published article is available from the link below.This study addresses the governance of the London 2012 Olympics legacy. It presents legacy not as a retrospective but a prospective concept concerned with shaping the future through interactions between the state, market and society. This entails designing systems of governance to guide and steer collective actions towards a consensus amongst various parties concerned. Four modes of governance and a range of policy instruments were examined in the delivery of sustainable London Olympics sport legacy including coercive, voluntarism, targeting and framework regulation. The British government actively created a new policy space and promoted institutional conduct consistent with its legacy visions. The current global legacy framework is lacking the governance dimension and its logic needs to be reconsidered. A meaningful sport legacy requires not top-down approaches but locally informed strategies supported by a developmental design of the Olympic Games informed by sustainable principles

    Legacy, resource mobilisation and the olympic movement

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    There has been a growing interest in legacies of the Olympic Games focusing on external tangible outcomes, such as the number of sport competitions, participants and jobs created. Little is still known about the equally valuable internal benefits to individuals and organisational capacities of national sport systems. While the former tends to explore the contribution of the Games to host cities and countries, the latter is concerned with the role of Olympism in developing sport globally. Using a resource mobilisation approach to social movements, this study examines the powers of the Olympic Movement (OM) to generate resources needed for the advancement of its mission. This ability of the Movement is critical if it is to sustain its relevance to the modern world and to deliver on its stated objectives for social change, as well as to leave any lasting legacies from the Olympic Games

    Impact of the final thermal sealing of combined zinc/cerium oxide protective coating primers formed on low carbon steel

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    The final sealing possesses a proven beneficial effect on the protective properties of anodic oxide films on aluminum. In this sense, the present research is devoted to the evaluation of the impact of this procedure on the barrier ability of combined Zn/Ce oxide layers deposited on low carbon steel samples. For this purpose, four samples were submitted to galvanic zinc deposition, followed by spontaneous formation of cerium oxide primer layer (CeOPL). Afterwards, two of the samples underwent thermal sealing in boiling water in order to enhance their barrier ability. Its evaluation was performed by two electrochemical methods: electrochemical impedance spectroscopy (EIS) and potentiodynamic scanning (PDS) after 24 hours of exposure to a diluted model corrosive medium (MCM). Other instrumental methods were used in order to describe the effect of this final procedure on the color characteristics and hydrophobicity of the films. The results were collected from multiple tests, followed by statistical data treatment. In addition, the surfaces of the obtained films were submitted to direct observation by scanning electron microscopy (SEM), coupled with energy dispersion X-ray (EDX). Their composition was determined by means of X-ray Photoelectron Spectroscopy (XPS). The acquired data have revealed a detrimental effect of the final sealing in boiling water. It was expressed by the loss of the barrier properties of the Zn/CeOPL films, combined with additional decolorization and hydrophilization. Finally, the mechanism of this detrimental effect was determined by further SEM, EDX and XPS analyses

    Evaluation of the electrochemical performance of Ag containing AAO layers after extended exposure to a model corrosive medium

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    The coating procedure appears to be an indispensable finishing stage in the production of Al based industrial products, engineering facilities and equipment. For this reason, there is an ever-increasing interest towards the elaboration of reliable corrosion protective layers with apparent coverage, adhesion, and barrier properties. In this sense, both the for­ma­ti­on of anodized aluminum oxide (AAO) layer and its further modification with silver enable the elaboration of advanced (Al-O-Ag) films with extended beneficial charac­te­ris­tics. The present research activities are aimed at the determination of the corrosion pro­tective properties of electrochemically synthesized Al-O-Ag layers on the technically pure AA1050 alloy. The structures and compositions of the obtained Al-O-Ag layers were characterized by X-ray diffractometry (XRD) and X-ray photoelectron spectroscopy (XPS). The research activities were accomplished by means of two independent electrochemical characteri­za­tion methods: electrochemical impedance spectroscopy (EIS) and potentio­dynamic scan­ning (PDS). The electrochemical measurements were performed after 24, 168 and 672 hours of exposure to 3.5 % NaCl solution used as a model corrosive medium (MCM), in order to determine the barrier properties and durability of the elaborated Al-O-Ag layers. The analysis of the obtained results has undoubtedly shown that the proposed electro­chemical Al-O-Ag layer formation can successfully be used for the creation of self-standing layers with apparent corrosion protective properties. Besides, Al-O-Ag system can be used as a basis for development of efficient protective layers suitable for application in biologically contami­nated media.</p
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