2,006 research outputs found

    Tractatio Iuris Publici De Serenissimis Potentissimisque Ducibus Brunsvicensibus Et Luneburgensibus / D.O.M.A. Praeside ... Dn. Joh. Ulrico Pregizero ... In Illustri Collegio Ad Diem 10. Decembr. Placido Eruditorum Examini sistit Author Christian Ulrich Blum

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    TRACTATIO IURIS PUBLICI DE SERENISSIMIS POTENTISSIMISQUE DUCIBUS BRUNSVICENSIBUS ET LUNEBURGENSIBUS / D.O.M.A. PRAESIDE ... DN. JOH. ULRICO PREGIZERO ... IN ILLUSTRI COLLEGIO AD DIEM 10. DECEMBR. PLACIDO ERUDITORUM EXAMINI SISTIT AUTHOR CHRISTIAN ULRICH BLUM Tractatio Iuris Publici De Serenissimis Potentissimisque Ducibus Brunsvicensibus Et Luneburgensibus / D.O.M.A. Praeside ... Dn. Joh. Ulrico Pregizero ... In Illustri Collegio Ad Diem 10. Decembr. Placido Eruditorum Examini sistit Author Christian Ulrich Blum (1) Titelblatt (1) Prooemium. (3) Caput I. (5) Caput II. (9) Caput III. (12) Caput IV. (22) Caput V. (29) Caput VI. (47) I. - V. (54

    Modular Ka-band switch matrices using two RF MEMS technologies

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    This paper presents the design and measurement of two different switch matrix modules based on Radio Frequency Microelectromechanical System (RF MEMS) switches. The operational frequency range is between 25.5 GHz and 26.5 GHz for data links between a Geostationary Earth Orbit (GEO) relay satellite and Low Earth Orbit (LEO) satellites. The switch matrix implements a key functionality for tracking the incident signals of the LEO satellites on the receive feed antenna array of the GEO satellite's reflector antenna. Two different technologies are used to build simplified switch matrix modules suitable for realizing the full functionality switching matrix. Rogers RT/Duroid 5880 with commercially available RF MEMS is used to build the first module, while EADS in house RF MEMS are integrated in Rogers Ultralam 3850 Liquid Crystal Polymer (LCP) for the second module. Maximum insertion losses of 8.5 dB and 10.2 dB have been measured for the Rogers RT/Duroid 5880 and the LCP module, respectively. Isolation is higher than 45 dB and a minimum return loss of 15 dB is shown. Finally, the measured losses in the LCP module are analyzed and suitable improvements are discussed

    A system concept for a 3D real-Time OFDM MIMO radar for flying platforms

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    In this paper a new system concept for a low cost, miniaturized and real-time imaging radar system for flying platforms is presented. The proposed solution is based on the MIMO radar architecture, orthogonal signals for simultaneous transmit capabilities and highly integrated SiGe chipsets. Using beamforming techniques at the receiver together with radar processing techniques, a 3D sensing of the range, azimuth, elevation and Doppler information for an arbitrary number of objects can be estimated through a simultaneous transmission and with real-time hardware implementable FFT processing techniques. A top-level system concept and a complete parametrization is proposed for a radar system which is intended for obstacle warning for helicopters and to enhance flight safety in approach, landing and take-off phases of flight even in degraded visual conditions. The full OFDM MIMO Radar system has been implemented and tested in a MATLAB environment and simulation results are here presented. This paper is the first step towards the implementation of a compact and real-time radar system demonstrator

    Supplementary movies of the dynamic rupture and tsunami models published in Ulrich et al. (2019)

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    <p>Supplementary movies of the dynamic rupture and tsunami models published in Ulrich et al. (2019)</p> <p>movie_Sulawesi_SR-cp.mov: Absolute slip rate (m/s) across the fault network during the earthquake. Author: Thomas Ulrich</p> <p>movie_Sulawesi_wavefield-cp.mov: Absolute slip rate (m/s) and wavefield (absolute particle velocity in m/s) across the fault network during the earthquake. Author: Thomas Ulrich</p> <p>SulawesiTanioka.mp4: Sea surface height (m) predicted by the tsunami scenario. Author: Stefan Vater</p> <p>reference: Ulrich, T., Vater, S., Madden, E. H., Behrens, J., van Dinther, Y., van Zelst, I., Fielding, E. J., Liang, C. & Gabriel, A. A. (2019). Coupled, Physics-based Modeling Reveals Earthquake Displacements are Critical to the 2018 Palu, Sulawesi Tsunami. doi: 10.31223/osf.io/3bwqa.</p&gt

    Expatriate Assignments : comparison of Theory and Practice

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    Author: Ulrich MeindlAbstract in englischer SpracheDiplomarbeit Universität Linz 201

    Expatriate Assignments : comparison of Theory and Practice

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    Author: Ulrich MeindlAbstract in englischer SpracheDiplomarbeit Universität Linz 201

    Ulrich Becher: An Introduction to the Life and Writings of this Contemporary German Author

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    v, 29 p.Originally I had intended to treat all of his epic, lyric, and dramatic works which were available to me. As my research progressed, I realized, however, that a detailed investigation of Becher's philosophy, literary form and imagery would be impossible within the limitations of a thesis. Instead, I chose to introduce this contemporary German author to an English-speaking audience through a survey of his life and works, followed by an analysis of three narratives representing the three periods of Ulrich Becher's writing

    Séminaire de l'IAO : Ulrich Theobald

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    "Rough Terrain : Tactics and Technical Issues in Alpine Warfare in the High Qing Period" Jeudi 27 octobre 2016, Salle de réunion de l’IAO (R66), de 14h à 15h30 Ulrich Theobald (Ph.D. 2009) is a senior lecturer at the Department for Chinese and Korean Studies of the University of Tübingen, Germany. He is specializing in the economic, military, monetary and administrative history of late imperial China, and author of "War Finance and Logistics in Late Imperial China : A Study of the Second Jinc..
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