Suchergebnisse

This paper historicizes the idea of "popular science" in the Ukrainian academic discourse in relation to contemporary approaches to "national science" (as "science proper") and places special emphasis on the introduction of regular scientific lectures to public audiences in early twentieth century Habsburg Galicia. The Shevchenko Scientific Society was the central Ukrainian association of scholars and scientists at the time. Male-dominated, and increasingly dedicated to "Ukrainoznavstvo" ("Ukrainian studies"), the Shevchenko Scientific Society paid little attention to the popularization of scientific research. The Petro Mohyla Society for Ukrainian Scientific Lectures emerged in reaction to the Shevchenko Society. Its goal was to expand public awareness of the scientific work, and its members proceeded to organize regular public lectures all over Galicia between 1909 and 1914. This paper analyzes such popularization of science, propagated by the Petro Mohyla Society, and examines the lecture audiences with regard to their location, gender, and respective interests.

Pope John XXII, elected in 1316, reigned for 18 years and was the most significant if also the most controversial of the Popes who resided in Avignon. The essays in this volume, drawn from the disciplines of history, art, philosophy, theology, and the law, examine the conceptual and institutional conditions and the impact of his papacy and seek to show the ways it was organized according to both time-honored and innovative practices.

RELAP5 is a system thermal-hydraulic code that is used to perform safety analysis on nuclear reactors. Since the code is based on steady state, two-phase flow regime maps, there is a concern that RELAP5 may provide significant errors for rapid transient conditions. In this work, the capability of RELAP5 code to predict the oscillatory behavior of a natural circulation driven, two-phase flow at low pressure is investigated. The simulations are compared with a series of experiments that were performed in the CIRCUS-IV facility at the Delft University of Technology. For this purpose, we developed a procedure for calibration of the input and code validation. The procedure employs (i) multiple parameters measured in different regimes, (ii) independent consideration of the subsections of the loop, and (iii) assessment of importance of the uncertain input parameters. We found that predicted system parameters are less sensitive to variations of the uncertain input and boundary conditions in high frequency oscillations regime. It is shown that calculation results overlap experimental values, except for the high frequency oscillations regime where the maximum inlet flow rate was overestimated. This finding agrees with the idea that steady state, two-phase flow regime maps might be one of the possible reasons for the discrepancy in case of rapid transients in two-phase systems.

Le présent volume contient les Actes du colloque international sur les " Représentations et conceptions de l'espace dans la culture médiévale " qui s'est déroulé du 19 au 21 octobre 2009 sous les auspices de l'Institut d'Etudes Médiévales de l'Université de Fribourg (Suisse). La participation de spécialistes de rang international à cette rencontre atteste du vif intérêt que suscitent aujourd'hui dans la communauté scientifique la perception et la compréhension médiévales de l'espace. En effet, d'importantes études menées au cours de la dernière décennie auront éclairé sous un nouveau jour la signification complexe de l'espace dans la civilisation du Moyen Age latin, qui se décline sur plusieurs registres : social, économique, politique, culturel et religieux. Loin d'apaiser la curiosité scientifique, les études récentes sur ces diverses facettes de l'espace médiéval ont ouvert de nouveaux horizons, suscité des interrogations nouvelles, mis à jour un vaste chantier d'investigation sur les rapports aux lieux et à l'espace dans la vie et la culture du Moyen Age européen. Le colloque visait donc à explorer davantage quelques pistes de recherche. Il a réuni des chercheurs de pays, de langues, de cultures et de domaines scientifiques différents. Il a ainsi donné lieu à un dialogue animé qui aura permis de confronter et d'enrichir mutuellement les visions de l'espace médiéval des spécialistes de l'histoire, de la philosophie, de l'histoire de l'art et de la littérature