Utilisation d'un capteur à courant de Foucault pour prévenir la fissuration dans des structures métalliques: travail de bachelor : diplôme 2016

Sensima Inspection Sàrl. a développé un capteur à courant de Foucault flexible et peu intrusif qui permet de surveiller la propagation de fissures dans des éléments métalliques. Il est actuellement testé in-situ sur des ponts. Le but de ce projet est de démontrer que ce capteur peut être utilisé dans le cadre du suivi conditionnel d’installations hydroélectriques et en particulier des machines tournantes. Il devrait, à terme, permettre d’arrêter certains organes dans le cas où les fissures suivies dépasseraient une taille critique déterminée à partir de la mécanique de la rupture. Les jalons de ce projet sont de démontrer que le capteur permet de suivre l’évolution de fissures dans des tôles minces lors d’essais de traction en déchirement et en fatigue, et de valider expérimentalement s’il est possible de corréler le signal obtenu par le capteur en pointe de fissure avec d’autres mesures expérimentales comme des tests de dureté et des observations métallographiques

Clinical molecular genetics in the UK c.1975-c.2000

seminar transcriptChaired by Professor Martin Bobrow and introduced by Professor Bob Williamson, this Witness Seminar included geneticists from a broad range of research and clinical specialities. Discussions of molecular research into haemoglobin disorders, and the development of probes for related genes in the 1970s, included particular acknowledgment of Southern blotting as a critical tool for such research. Also noted was a landmark conference in Crete in 1978 that emphasized the special significance of research work on thalassaemia, as well as providing fruitful networking opportunities for scientists from around the world. Similarly, in 1982, a key course at Leiden University introduced molecular techniques to geneticists from across Europe. In that same year the first prenatal diagnosis by chorionic villus sampling was published, and the emotional aspects of such genetic diagnoses for patients, families and clinicians were frequently discussed during the seminar. Other issues, including the funding of research, and especially the role of patient support groups; the establishment and growth of professional interest groups and bodies such as the Clinical Molecular Genetics Society; and the development of national genetics

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Pengaruh Kualitas Layanan Agen Terhadap Kepuasan Nasabah PT. AXA Financial Indonesia Di Kota Palembang

This study was conducted to determine the effect of the agent service quality on customer satisfaction PT . AXA Financial Indonesia in Palembang. This type of research is done by using a surveys by distributing questionnaires to the respondents , namely ; Indonesia Financial PT.AXA customers . The sampling technique used was purposive sampling . The number of samples in the study of 100 people , where respondents are customers PT AXA Financial Indonesia and has an active policy of more than 6 months . The data analysis technique used is a reliability test , validity test . Hypothesis testing using multiple linear regression analysis with the help of the program SPSS 21. Reliability test results show all the data unreliable and test the validity of the data shows all valid. Multiple linear regression analysis showed 3 independents variables has positive effect on customer satisfaction and 2 other independents variables have not effect on customer satisfaction

Credibility in CSR communication: concepts, methods, analyses

In globalized markets, norms for legitimate behavior are scattered and businesses must satisfy often conflicting demands of various stakeholders simultaneously. This is why communicating their Corporate Social Responsibilities (CSR) in a legitimate way is challenging. The present is also a high time for a debate of CSR issues and an era of public scrutiny and mistrust, catalyzed by real-time communication technologies and a 24/7 news cycle. Instances of non-credible communication, the misuse of CSR for marketing exercises, and corporate scandals with large environmental and social impact have sparked skepticism and mistrust toward CSR communication and its tools, particularly CSR reports. As a result, companies and stakeholders are trapped in the “credibility gap” of CSR reporting, which is harmful for both: stakeholders cannot satisfy their information needs regarding CSR and companies can hardly convey their CSR activities in a credible manner. Even though credibility is central to CSR communication and despite the fact that communicating non-credibly has lasting negative consequences for companies, there is no consensus about the concept of credibility and barely any studies exist that tackle credibility gaps systematically. This dissertation endeavors to investigate the issue of credibility in CSR communication theoretically, methodologically, and empirically. In particular, it analyzes companies’ and stakeholders’ perspectives of the “credibility gap” in CSR reporting. It explores concepts and methods to investigate how companies can communicate credibly and provides empirical evidence on the state-of-the-art of CSR reporting in Europe. To this end, it combines concepts from business ethics, management studies, political theory, and communication sciences and triangulates various methods. This dissertation is structured in four individual chapters framed by an introductory part and conclusions. The key findings can be summarized as follows. Chapter I proposes that communication is at the heart of CSR by highlighting Habermasian communicative action theory as the backbone of political CSR theory. Furthermore, it discusses how credible CSR communication leads to moral legitimacy and thus provides the conceptual foundation of this dissertation. Based on this theoretical advancement, the chapter develops a typology of CSR communication tools clustering them into deliberative and instrumental as well as published and unpublished tools. Chapter II presents quantitative content analysis as a suitable method to generate novel insights in business ethics, and especially CSR, research. Given the diametrical advantages of human- and software-based coding procedures, a concurrent mixed methods approach is proposed. To account for the need of ethical reasoning in business ethics research, the chapter suggests that quantitative content analyses be followed by an ethical interpretation of the quantitative results. Chapter III analyzes, for the first time, the “credibility gap” in CSR reporting from the perspective of the company, by applying quantitative content analysis as proposed in Chapter II. To this end, the credibility of CSR reports from 11 European countries is analyzed based on a multidimensional operationalization of credibility along Habermasian theory. Parametric statistical analyses reveal that European CSR reports are credible at a mediocre level. It is the content of the reports that matter for credibility, while the impact of contextual, format, and firm-level factors is secondary. Furthermore, voluntary standardization impacts credibility positively, whereas legislation does not yet have the same positive effect. Addressing the stakeholders’ perspective, Chapter IV develops a measurement scale to test the perceptions of credibility of CSR reports. In doing so, the chapter builds on a novel conceptualization of credibility along the Habermsian validity claims. The scale development comprises nine stages including a literature review, a delphi study, and three validation studies applying exploratory and confirmatory factor analyses to arrive at the final 16-item PERCRED (perceived credibility) scale. Participants in the final study perceived CSR reports to be rather credible, regardless of whether the same reports had been found credible or non-credible in Chapter III. The PERCRED measure can help companies and researchers deepen the understanding of why CSR reports are often perceived as being non-credible tools. The findings of this dissertation demonstrate that the “credibility gap” equally exists from the companies’ and the stakeholders’ perspectives. To eventually bridge it, striving for true, sincere, appropriate, and understandable communication by all parties is a viable avenue. Describing credibility as a communication quality and perception construct along the four sub-dimensions truth, sincerity, appropriateness, and understandability advances the understanding of credibility in the communication sciences. This dissertation contributes to theory development in the emerging field of CSR reporting by presenting credible CSR reports as facilitators to re- and maintain legitimacy and by systematically examining this notion from the perspective of companies and stakeholders. The thesis further advances political CSR theory as it empirically confirms the impact of voluntary standardization and stresses the role of the nation state. The findings of this dissertation also hold implications for public policy makers to level the playing field in CSR reporting in order to reach credibility consistently; companies are provided with a tool to measure credibility perceptions of their reports and to better evaluate the roots of stakeholders’ criticism and mistrust

Effect of torch angle on arc properties and weld pool shape in stationary GTAW

In this paper, a three dimensional numerical simulation is performed on a stationary arc to study the effect of torch angle in gas tungsten arc welding (GTAW) of SS304 stainless steel. A comparison has been made to investigate 90o and 70o torch angles and analyze the effect on arc and weld pool shape. Current density, heat flux and gas shear stress are calculated in the arc region and are used as input to the workpiece to determine the weld pool. Buoyancy and Marangoni shear also affect the weld pool shape and are taken into account. The computed and experimental results are observed symmetric for 90o torch angle. For 70o torch angle, current density and hence the heat flux due to electron contribution is found the maximum behind and heat flux due to conduction and convection is found the maximum ahead of the electrode tip in the welding direction. This makes the maximum of total heat flux symmetric along the arc center. Heat flux due to conduction and convection decreases as the torch angle decreases resulting in a shallow weld pool. The nonsymmetric “w” shaped weld pool is developed by the combined effect of the gas shear and Marangoni convection. It is found that for 70o torch angle, the weld pool becomes non-symmetric, shallow and wide ahead of the electrode tip in the welding direction. The numerical weld pool shapes are verified through experiments

Are media reports representative of host community support for mega-events? The case of Sydney world youth day 2008

World Youth Day 2008 (WYD08) held during July was the fourth mega-event to be held in Sydney in the past decade. All mega-events, such as WYD08, attract considerable media attention in the lead up to, during, and after the event. In the lead up to WYD08, media reports, particularly those in the Australian written press, were predominately negative. These reports gave the impression that there was little, if any, support for holding the event among the residents of Sydney. Data were collected through a combination of document analysis and host community interviews, in the lead up to, during, and immediately following the event. The document analysis included two local Sydney newspapers and one national newspaper. The findings show that printed media reports were not an accurate reflection of community support. Given that media is believed to be not only influenced by public opinion, but also capable of influencing public opinion, why was there such disparity between media reports and other sources of evidence regarding community support for this event? There is a call for more research investigating if what is reflected in the media is a fair approximation of community response to events