Search results for "Security"

The ELECTRE I method to support the FMECA

2018

Abstract In traditional Failure Modes, Effects and Criticality Analysis (FMECA), risk priorities of failure modes are determined through the Risk Priority Number (RPN), which is a function of the three risk parameters Occurrence (O), Severity (S), and Detection (D). In the present paper, an alternative approach to RPN is proposed for the criticality assessment of system failure modes. Particularly, the Multi-Criteria Decision Making (MCDM) method ELECTRE I is proposed to select the most critical failure mode in the set of the failure modes charactering a complex system. The method has been applied to a case study previously proposed by Zammori and Gabrielli (2012).

Modélisation sémantique et programmation générative pour une simulation multi-agent dans le contexte de gestion de catastrophe

2020

La gestion de catastrophe nécessite une préparation collaborative entre les divers intervenants. Les exercices collaboratifs visent à entraîner les intervenants à appliquer les plans préparés ainsi qu’à identifier les problèmes et points d’améliorations potentiels. Ces exercices étant coûteux, la simulation informatique est un outil permettant d’optimiser la préparation à l’aide d’une plus grande diversité de cas. Cependant, les travaux de recherche centrés sur la simulation et la gestion de catastrophe sont spécialisés sur un problème spécifique plutôt que sur l’optimisation globale des plans préparés. Cette limite s’explique par le défi que constitue la réalisation d’un modèle de simulati…

The ‘Open Garden of Politics’: The impact of open primaries for candidate selection in the British Conservative Party

2016

International audience; Since 2003, hundreds of open primaries for the selection of parliamentary candidates have been held by the British Conservative Party as a means of democratising party organisation and enhancing representativeness. In the run-up to the 2015 general election, only 26 primaries could be identified. This article will apply the analytical framework provided by Hazan and Rahat to demonstrate that the relative failure of the experiment in terms of intra-party competition, participation, representation and responsiveness is counterbalanced by the benefits brought by this procedure, both as a tool of party branding at the national level and as a strategy for raising the prof…

Der Wettbewerb zwischen Parteien der Extremen Rechten und der linken Mitte

2016

Seit den fruhen 1980er Jahren gehoren Parteien, die der „Extremen“, „Radikalen“, „Populistischen“ oder „Neuen Rechten“ zugerechnet werden, zur Realitat westeuropaischer Parteiensysteme. Die Etablierung dieser neuen Parteienfamilie stellt die westeuropaischen Demokratien vor eine Vielzahl von Herausforderungen. Dabei ist der Aspekt der Konkurrenz um Stimmen von zentraler Bedeutung. Es gibt gute Grunde zu vermuten, das die Extreme Rechte auch und gerade den sozialistischen und sozialdemokratischen Parteien Europas zusehends Konkurrenz machen konnte. Die neuen Rechtsparteien haben ihre ursprunglich oft marktliberale Rhetorik abgeschwacht und umwerben die Arbeiterschaft mit protektionistischen …

Rodzinna postpamięć Ślązaków

2017

Family Postmemory of the People of Silesia
 The author suggests a possible use of postmemory to analyse the contemporary family memory of the people of Silesia. Their memoirs about WW2 (such as working for the Wehrmacht, the Red Army invading Silesia, working in labour camps, nationality verification, displacements to Germany, and deportations to Siberia) bear signs of latent memory which is rarely revealed even to the next of kin. Present mainly within the family circle, within the local society, and among friends, these memoirs integrated Silesians and made them a unique community that considers itself a stigmatized minority. This contributed to mythologizing and stereotyping the who…

The changing functions of the mass media: A historical perspective

1989

Miracles in Dark Times: Hannah Arendt and Refugees as ‘Vanguard’

2019

AbstractThe radical uncertainty that refugees face because of war, flight and exile often dramatically shapes their participation in society. Violent conflict and human rights abuses are not just disproportionately experienced by, but can also create, political subjects. Such life events can transform the motivations, sense of responsibility and political actions of individuals with refugee backgrounds. In this article, we explore the links between civil–political engagement and the life stories of such individuals, analysing our empirical data through themes in the work of Hannah Arendt. We make three central points. First, we highlight the possibility of refugees as ‘vanguard’, playing a …

Safety regulations : implications of the new risk perspectives

2016

Abstract The current safety regulations for industrial activities are to a large extent functionally oriented and risk-based (informed), expressing what to achieve rather than the means and solutions needed. They are founded on a probability-based perspective on risk, with the use of risk assessment, risk acceptance criteria and tolerability limits. In recent years several risk researchers have argued for the adoption of some new types of risk perspectives which highlight uncertainties rather than probabilities in the way risk is defined, the point being to better reflect the knowledge, and lack of knowledge, dimension of risk. The Norwegian Petroleum Safety Authority has recently implement…

Metakaolin geopolymer characterization and application for ammonium removal from model solutions and landfill leachate

2016

Abstract Geopolymers are aluminosilicate compounds that are amorphous analogues of zeolites, and thus possess similar cation-exchange properties. Geopolymers have been successfully applied to remove toxic metals and organic dyes from aqueous solutions. In this study, geopolymer was synthesized from metakaolin and applied to remove ammonium (NH 4 + ) from model solutions and landfill leachate. Geopolymerization increased the ammonium removal capacity, surface area and average pore width and changed the chemical structure of metakaolin. The maximum NH 4 + removal capacity of the geopolymer was 21.07 mg g − 1 which was 46% higher than the capacity of the reference clinoptilolite–heulandite zeo…

Kinetic, isotherm and thermodynamic studies of the adsorption of methylene blue dye onto agro-based cellulosic materials

2015

AbstractThe purpose of this work is to establish the optimal experimental conditions for the removal of methylene blue (MB-as model basic dye) from aqueous solution by adsorption onto four agro-based materials, namely, cedar sawdust, pine sawdust, wheat straw, and Provence cane Arundo donax. Results show that an increase in acidity or ionic strength of the medium has generally a negative effect on the discoloration yield. From the data of pH effect, there is no need to change the initial pH of the MB solution to be treated. Equilibrium was reached after 20−30 min of agitation when cedar sawdust, pine sawdust, and Provence cane are used as adsorbents. However, in the case of wheat straw, an …