339 research outputs found

    Sub-Yugoslav Identity Building in the Enciklopedija Jugoslavije (1955–1990): The Case of the Albanian Question

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    The Encyclopedia of Yugoslavia (Enciklopedija Jugoslavije, EJ) was the flagship project of socialist Yugoslav nation-building in the fields of culture and academic knowledge. The first edition of the EJ was published in one Serbo-Croatian version (1955–1971), but the unfinished second edition of the EJ (1980–90) appeared in Slovenian, Serbo-Croatian in Latin and in Cyrillic script, Macedonian, Hungarian, and Albanian versions. The EJ was transformed from a staunchly federalist Yugoslav cultural platform of the 1950s, which supported Yugoslav unitarism, to one that strongly affirmed the nation-building(s) of the republics and autonomous provinces, thereby reflecting the decentralist remodeling of Yugoslavia from the late 1960s onwards. Using the examples of the two articles on “Albanians” and “Albanian-Yugoslav relations” in the EJ in their 1955, 1980, and 1983 versions, the authors elaborate on the political struggles within the Yugoslav ruling elite and within academia.Deutsche Forschungsgemeinschaft; Gerda Henkel StiftungPeer Reviewe

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    Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.Fremdes Europa? Selbstbilder und Europa-Vorstellungen in Bulgarien (1850 1945). Hrsg. von Petǎr PETROV, Katerina GEHL und Klaus ROTH. Berlin: LIT Verlag 2007, 366 S. ( Kulturgeschichtliche Perspektiven, 6) ISBN 978-3-8258-0793-1Peer Reviewe

    Buchbesprechung

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    Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.The Konikovo Gospel. Konikovsko evangelie. Bibl. Patr. Alex. 268. Hrsg. von Jouko LINDSTEDT, Ljudmil SPASOV, Juhani NUORLUOTO. Helsinki 2008 (= Commentationes Humanarum Litterarum, 125), 439 + LXXXII S., ISBN 978-951-653-366-0Peer Reviewe

    Preparation of Loads and Aeroelastic Analyses of a High Altitude, Long Endurance, Solar Electric Aircraft

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    High altitude, long endurance aircraft can serve as platform for scientists to make observations of the earth over a long period of time. Staying airborne only by solar electric energy is, as of today, a challenge for the aircraft design and requires an extremely light weight structure at the edge of the physically possible. This paper focuses on the loads and aeroelastic aspects of such a configuration, discusses the selected strategies and presents the applied methods and tools, including the resulting models prepared for the HAPomega configuration currently under development at the DLR. Because of the structural flexibility and the slow speed of the aircraft, flight mechanical and flight control aspects interact with aeroelastics e.g. during a gust encounter, making a non-linear time domain simulation necessary. Both maneuver and gust loads are used for the structural sizing and result in a very light and slender airframe with very low eigenfrequencies

    Challenges of integrating adjoint simulations in industrial turbomachinery MDO

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    The design of turbomachinery creates a strong demand for the simultaneous optimization of multiple blade rows with regard to different disciplines including aerodynamics, aeroelasticity, and solid mechanics. Established gradient-free methods, typically surrogate-based methods, have been successfully applied to the optimization of single blade rows and pairs of adjacent rows, typically featuring in the order of 50 design variables per blade row. Gradient-free methods become inhibitively expensive through the increased number of design variables from simultaneous optimizations of many rows. Gradients obtained from adjoint simulations can help in transitioning to larger design spaces as they provide derivatives with respect to each design variable at a computational cost that only depends on the number of objectives. For the transition from gradient-free to gradient-based optimizations, a variety of challenges had to be solved, which will be outlined in this paper
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