共查询到20条相似文献,搜索用时 31 毫秒
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Bruno Leclercq,Fondements logiques et phénoménologiques de la rationalité mathématique chez Husserl. Contributions husserliennes au débat sur la „crise des fondements“, (Mathesis) Paris: Vrin 2015. 198 S., € 20,00. ISBN 978‐2‐7116‐2595‐6.
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Stany Mazurkiewicz 《Berichte zur Wissenschaftsgeschichte》2016,39(3):287-288
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ROBERT MURDIE 《The Canadian geographer》2010,54(3):381-382
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Global Handbook of Quality of Life: Exploration of Well‐Being of Nations and Continents,edited by Wolfgang Glatzer,Laura Camfield,Valerie Møller,and Mariano Rojas. New York: Springer. 894 + xii. ISBN‐978‐94‐017‐9177‐9; ISBN 978‐94‐017‐9178‐6 (eBook). Cloth, $559.00.
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Gordon Mulligan 《Journal of regional science》2015,55(4):673-675
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Steven Deller 《Journal of regional science》2014,54(3):539-541
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GUILLAUME FORTIN 《The Canadian geographer》2010,54(2):196-208
Freeze‐thaw cycles are most common at the beginning or near the end of the winter season. These cycles have various effects on the ecosystems of Eastern Canada, affecting both biotic and abiotic components of temperate cold environments. Using air temperature minima and maxima from four meteorological stations close to Québec City, we determined the frequency of daily freeze‐thaw cycles for the last 30 years. The results show no significant increase in the number of freeze‐thaw cycles despite a small increase in air temperature. Polynomial curves describing the relationship between mean air temperatures and the number of freeze‐thaw cycles were calculated. Based on these equations and anticipating a climate change scenario, we projected future freeze‐thaw cycles. Assuming a 5 °C increase in mean air temperatures by 2100, we estimated that the number of days with a freeze‐thaw cycle could increase by approximately 20 days per winter. The increase in the number of such cycles will be concentrated during the coldest months of the winter (January and February). 相似文献
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Jon R. Miller 《Journal of regional science》2014,54(3):543-544
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Colour measurements and non‐destructive μ‐X‐ray mappings have been used for the first time in a comprehensive study of medieval émail champlevé works from different production areas in France and Germany. This approach has given a new insight into the enamel powder preparation process of the glass material used for enamelling. Colour measurements demonstrated that all production centres used glass of very similar hues, but with large differences in colour saturation. The μ‐X‐ray mapping results of blue enamels are described by a semi‐qualitative approach. Significant variations in oxide contents of lead, cobalt, manganese and antimony oxides were found. The variations suggest that more than one glass material was used to prepare the powder for enamelling. The variations in antimony and cobalt show that glass had different degrees of opacity and colour depth. The manganese and lead contents, which do not correlate with the cobalt or antimony contents, indicate that probably glass of different base compositions was used to prepare the enamel powder for one champlevé field. 相似文献
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