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This is the first study applying Weibull statistics to the strength distribution of a thermoelectric (TE) material and to determine the fracture strength of a member of the LAST-T (lead–antimony–silver–tellurium–tin) family of high-temperature TE compounds. The p-type TE material Ag0.9Pb9Sn9Sb0.6Te20 was cast from the melt and specimens cut from the resulting ingot were fractured in a ball-on-ring biaxial fracture test. The Weibull parameters (characteristic strength and Weibull modulus) were obtained from the fracture data. Implications of the Weibull analysis on the fabrication of TE devices are discussed. 相似文献
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Timm Lampert∗ 《逻辑史和逻辑哲学》2013,34(1):63-81
It is controversial whether Wittgenstein's philosophy of mathematics is of critical importance for mathematical proofs, or is only concerned with the adequate philosophical interpretation of mathematics. Wittgenstein's remarks on the infinity of prime numbers provide a helpful example which will be used to clarify this question. His antiplatonistic view of mathematics contradicts the widespread understanding of proofs as logical derivations from a set of axioms or assumptions. Wittgenstein's critique of traditional proofs of the infinity of prime numbers, specifically those of Euler and Euclid, not only offers philosophical insight but also suggests substantive improvements. A careful examination of his comments leads to a deeper understanding of what proves the infinity of primes. 相似文献
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In organizations and educational institutions, creativity trainings are the preferred approach to enhancing individual creative abilities. However, three issues regarding these trainings still remain largely unsolved. First, the question of how long‐lasting creativity training effects are has not been sufficiently answered so far. Second, the question arises whether all participants benefit from such trainings equally in terms of their creative performance (CP). Third, an increasing number of studies have shown that creativity trainings may also be able to increase participants' creative self‐efficacy (CSE), that is, the confidence in one's own creativity. Other studies, however, did not find evidence for this effect. Therefore, this article aims to address these issues by analyzing data from three measurement waves. Results reveal that participants' CP increased during the training and decreased only slightly 4 weeks after the training. Additionally, we found an effect of diminishing training returns in that the higher a participant's CP before the training the lower the training effect was. In contrast to most prior literature, we found no support for an effect of creativity training on participants' CSE. We discuss these findings and offer implications for both theory and practice. Finally, we state this study's limitations and derive avenues for further research. 相似文献
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Human Studies - Phenomenology’s return to lived experience and “to the things themselves” is often contrasted with the synthesized perspective of science and its “view from... 相似文献
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The paper presents an analysis of Climate Justice Fast, a campaign consisting of an international hunger strike against political in action on climate change. Within the theoretical framework of political online activism and theories of affect, we investigate the encoding and decoding of the starving activist bodies in relation to CJF. Our material consists of texts from the CJF website, activist blogs, and two online debates on a large Danish media platform. The methodological approach is discourse analytical and esthetic-affective. In our analysis we outline the different semantic significations of the starving bodies as central signifiers and we investigate the different affective responses to the hunger strike. We furthermore argue that the starved body seems to be relationally powerful, because of both its contagious ability to attune other bodies and its semantic ‘wildness’. 相似文献
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