4,723 research outputs found

    Defining and Retrieving Themes in Nuclear Regulations

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    International audienceSafety systems in nuclear industry must conform to an increasing set of regulatory requirements. These requirements are scattered throughout multiple documents expressing different levels of requirements or different kinds of requirements. Consequently, when licensees want to extract the set of regulations related to a specific concern, they lack explicit traces between all regulation documents and mostly get lost while attempting to compare two different regulatory corpora. This paper presents the regulatory landscape in the context of digital Instrumentation and Command systems in nuclear power plants. To cope with this complexity, we define and discuss challenges toward an approach based on information retrieval techniques to first narrow the regulatory research space into themes and then assist the recovery of these traceability links

    Monitoring and the Risk Governance of Repository Development and Staged Closure:Exploratory Engagement Activity in Three European Countries.

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    This report is the product of research activity within the EC Seventh Framework Programme “Monitoring Developments for Safe Repository Operation and Staged Closure” (MoDeRn) Project. This project aims to further develop understanding of the role of monitoring in staged implementation of geological disposal to a level of description that is closer to the actual implementation of monitoring. It focuses on monitoring conducted to confirm the basis of the long term safety case and on monitoring conducted to inform on options available to manage the stepwise disposal process from construction to closure (including e.g. the option of waste retrieval). This report investigates the potential of citizen stakeholder engagement in the identification of monitoring objectives and the development of monitoring strategies for geological disposal of high level waste (HLW) or spent nuclear fuel (SNF). It builds on an earlier MoDeRn report describing monitoring the safe disposal of radioactive waste as a socio-technical activity (Bergmans, Elam, Simmons and Sundqvist 2012)

    Comparative analysis of spring flood risk reduction measures in Alaska, United States and the Sakha Republic, Russia

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    Thesis (Ph.D.) University of Alaska Fairbanks, 2017River ice thaw and breakup are an annual springtime phenomena in the North. Depending on regional weather patterns and river morphology, breakups can result in catastrophic floods in exposed and vulnerable communities. Breakup flood risk is especially high in rural and remote northern communities, where flood relief and recovery are complicated by unique geographical and climatological features, and limited physical and communication infrastructure. Proactive spring flood management would significantly minimize the adverse impacts of spring floods. Proactive flood management entails flood risk reduction through advances in ice jam and flood prevention, forecasting and mitigation, and community preparedness. With the goal to identify best practices in spring flood risk reduction, I conducted a comparative case study between two flood-prone communities, Galena in Alaska, United States and Edeytsy in the Sakha Republic, Russia. Within a week from each other, Galena and Edeytsy sustained major floods in May 2013. Methods included focus groups with the representatives from flood managing agencies, surveys of families impacted by the 2013 floods, observations on site, and archival review. Comparative parameters of the study included natural and human causes of spring floods, effectiveness of spring flood mitigation and preparedness strategies, and the role of interagency communication and cooperation in flood risk reduction. The analysis revealed that spring flood risk in Galena and Edeytsy results from complex interactions among a series of natural processes and human actions that generate conditions of hazard, exposure, and vulnerability. Therefore, flood risk in Galena and Edeytsy can be reduced by managing conditions of ice-jam floods, and decreasing exposure and vulnerability of the at-risk populations. Implementing the Pressure and Release model to analyze the vulnerability progression of Edeytsy and Galena points to common root causes at the two research sites, including colonial heritage, unequal distribution of resources and power, top-down governance, and limited inclusion of local communities in the decision-making process. To construct an appropriate flood risk reduction framework it is important to establish a dialogue among the diverse stakeholders on potential solutions, arriving at a range of top-down and bottom-up initiatives and in conjunction selecting the appropriate strategies. Both communities have progressed in terms of greater awareness of the hazard, reduction in vulnerabilities, and a shift to more reliance on shelter-in-place. However, in neither community have needed improvements in levee protection been completed. Dialogue between outside authorities and the community begins earlier and is more intensive for Edeytsy, perhaps accounting for Edeytsy's more favorable rating of risk management and response than Galena's

    Alternative sweetener from curculigo fruits

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    This study gives an overview on the advantages of Curculigo Latifolia as an alternative sweetener and a health product. The purpose of this research is to provide another option to the people who suffer from diabetes. In this research, Curculigo Latifolia was chosen, due to its unique properties and widely known species in Malaysia. In order to obtain the sweet protein from the fruit, it must go through a couple of procedures. First we harvested the fruits from the Curculigo trees that grow wildly in the garden. Next, the Curculigo fruits were dried in the oven at 50 0C for 3 days. Finally, the dried fruits were blended in order to get a fine powder. Curculin is a sweet protein with a taste-modifying activity of converting sourness to sweetness. The curculin content from the sample shown are directly proportional to the mass of the Curculigo fine powder. While the FTIR result shows that the sample spectrum at peak 1634 cm–1 contains secondary amines. At peak 3307 cm–1 contains alkynes

    Public opinion-building in mass media: a media analysis of Estonia's nuclear energy debate in 2011

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    The partial meltdown at Japan’s Fukushima power plant in 2011 has spread more than radiation: It caused a wave of dispute in many countries about the use of nuclear energy and forced those countries to re-evaluate their national energy independence given the risks posed by a plant. The small state of Estonia finds itself in such a position, having plans to construct a nuclear power plant, which are decided upon by 2013. The subject of this research is the debate in Estonian print media surrounding these plans. From viewing 12 months of data (October 2010 –September 2011) through both a quantitative content analysis and a qualitative discourse analysis, the debate appears to be a battle of individual opinions pulling public opinion to either an understanding of a threatened energy security without the plant, or a comprehension of the commitment in risks, if the plant is built. Intertwined with these results is first and foremost Ulrich Beck’s idea of a reflexive modernization: The Estonian debate is situated in the middle of the modernization process, still weighting the nationalist value of economic independence high, but beginning to integrate social rationality into the discussions – a phenomenon enhanced by the real-life event Fukushima, which caused public opinion to shift away from domination of professionals defending scientific rationality, towards a more evenly-balanced debate in terms of participation as well as represented attitudes.http://www.ester.ee/record=b4537767*es

    Open science-related policies in Europe

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    This study aims to review the open science (OS) policy documents, identify their subject areas, and distinguish the topics of OS support policies in seven European countries, providing a platform for practical cooperation between countries in science popularization. With a qualitative– inductive approach, all pertinent policy documents in OS were collected through documentary study, and thematic analysis was conducted to identify OS policies for each country. Finally, forty-six policy documents extracted up to December 2020 were thematically analyzed through a qualitative–inductive case study. All selected countries had developed OS policies, and these supportive policies were generally related to the three dimensions of ‘open input, open process, and open output’. In ‘open input’, recommendations for the performance of research data repositories, as well as management criteria, are considered. Most countries adopted ‘open output’ protectionist policies. Multiple policies in the ‘open process’ indicate the need for an appropriate OS platform

    The Evaluation of Process Safety Management Effectiveness in the Oil and Gas Sector: Case of Sonatrach, Algeria

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    Over the last decade the process sector has experienced unprecedented process incidents that are due to a combination of organizational, technical, and cultural deficiencies. Thus, Process Safety Management (PSM) has become a subject of great interest for process companies, governments, and professional associations. In fact, many researchers have questioned the effectiveness of PSM programs in process companies and discussed the features of a quality PSM program. Indeed, a review of the literature reveals several PSM issues in this sector internationally, which are mainly about organizational safety culture, maintenance and operational integrity of processes, PSM performance measurement, employee training, and knowledge management. The purpose of this research is to assess the maturity of PSM at Sonatrach, the Algerian public-owned oil and gas company, by evaluating the effectiveness of its PSM program as a part of the overall EHS management system through assessment of the key characteristics of a functional PSM program at Sonatrach, and how this is indicative of the state of PSM in developing countries. Given the results, this work provides recommendations for an appropriate path forward for Sonatrach to fully implement and improve PSM beyond adoption of standards.An explanatory mixed research approach was selected to investigate the state of PSM programs at Sonatrach facilities. It consisted of an online survey administered to a sample of twenty-two EHS specialists followed by six interviews with EHS specialists working at different Sonatrach facilities. The results showed that Sonatrach encounters issues, in addition to the ones mentioned above, in the organizational structure of the company, the PSM documentation, human integrity, legal compliance, and checking and reviewing of the PSM program performance. This research concludes with recommendations that would address these issues in order to establish a robust PSM program within Sonatrach facilities and in the process sector in general
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