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Displaying results 26 to 50 of 7234969.

  1. Monolithically integrated transceiver chips for bidirectional optical data transmission
    Author: Kern, Alexander
    Published: 2015
    Publisher:  Universität Ulm

    Abstract ; Vertical-cavity surface-emitting lasers (VCSELs) emitting at 850 nm wavelength are known for their attractive optical features and a growing range of applications. The main goal of the present thesis is to demonstrate the feasibility of a... more

     

    Abstract ; Vertical-cavity surface-emitting lasers (VCSELs) emitting at 850 nm wavelength are known for their attractive optical features and a growing range of applications. The main goal of the present thesis is to demonstrate the feasibility of a monolithic integration of VCSELs with PIN-type photodiodes (PDs) for the operation as transceiver (TRx) chips in optical data links. The project milestones comprise the chip and the epitaxial layer design of the VCSEL–PIN PD device based on the established AlGaAs/GaAs material system, its fabrication development, electro-optical characterizations, and data transmission in a bidirectional optical link over a single, two-side butt-coupled standard graded-index (GI) multimode fiber (MMF). The monolithic design lowers the costs in the semiconductor technology as well as in packaging and avoids the use of external optics, even though it is employed with a single 50 µm core diameter GI MMF. Thus, the very compact optical link saves space, weight, and module cost. Deep insights into the electro-optical properties of VCSELs and PIN PDs are given by the theoretical description and measurements. The limitations of the small-signal modulation responses are of main interest in this thesis. Thus, the dynamic characteristics including the extraction of modeled parasitics are presented. Also the electrical and optical crosstalk between the integrated devices and both transmission channels as well as the fiber alignment tolerances are covered. The results in optical data transmission consisting of various experiments in half-duplex and full-duplex mode, both free-space and fiber-coupled over a single MMF are explained in detail. The monolithic TRx design is well suited for low-cost, compact optical links over distances of a few hundred meters. Capable to handle data rates of up to 10 Gbit/s and more, these TRx chips can be employed, e.g., in automotive networks or in general to upgrade existing standard MMF networks to bidirectional operation.

     
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  2. Tagungsbericht zum 16. Symposium des Mediävistenverbandes: Gebrauch und Symbolik des Wassers in der mittelalterlichen Kultur, 23.03.2015-25.03.2015
    Author: Fillips, Bettina Ulrike Maria; Camenisch, Chantal; Stucki, Lisa; Hostettler, Myrjam Gabriela; Eggenberger, Sebastian; Gilgen, Raphael
    Published: 2015
    Publisher:  Humboldt-Universität zu Berlin

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    Source: BASE Selection for Comparative Literature
    Language: German
    Media type: Undefined
    Format: Online
    DDC Categories: 610; 430; 180; 900; 830
    Subjects: medieval & eastern philosophy
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    info:eu-repo/semantics/openAccess
  3. Ishme-Dagan K (2.5.4.11)
    Author: Attinger, Pascal
    Published: 2015
    Publisher:  Institut für archäologische Wissenschaften Universität Bern

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    Language: French
    Media type: Undefined
    Format: Online
    DDC Categories: 890; 930
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    info:eu-repo/semantics/openAccess
  4. La variation textuelle dans les textes littéraires sumériens d'époque paléobabylonienne
    Author: Attinger, Pascal
    Published: 2015
    Publisher:  Akademie-Verlag

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    Language: French
    Media type: Undefined
    Format: Online
    DDC Categories: 930; 890
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  5. Urnamma B (2.4.1.2)
    Author: Attinger, Pascal
    Published: 2015
    Publisher:  Institut für archäologische Wissenschaften Universität Bern

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    Language: French
    Media type: Undefined
    Format: Online
    DDC Categories: 890; 930
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  6. Enmerkara et le seigneur d'Arata (1.8.2.3)
    Author: Attinger, Pascal
    Published: 2015
    Publisher:  Institut für archäologische Wissenschaften Universität Bern

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    Language: French
    Media type: Undefined
    Format: Online
    DDC Categories: 930; 890
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  7. Compte rendu de A. Gadotti, 'Gilgamesh, Enkidu, and the Netherworld' and the Sumerian Gilgamesh Cycle. UAVA 10. Boston, Berlin: De Gruyter 2014
    Author: Attinger, Pascal
    Published: 2015
    Publisher:  De Gruyter

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    Language: French
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    Format: Online
    DDC Categories: 890; 930
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  8. Ninurta F (4.27.06)
    Author: Attinger, Pascal
    Published: 2015
    Publisher:  Institut für archäologische Wissenschaften Universität Bern

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    Language: French
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    Format: Online
    DDC Categories: 930; 890
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  9. Enlil et Ninlil (1.2.1)
    Author: Attinger, Pascal
    Published: 2015
    Publisher:  Institut für archäologische Wissenschaften Universität Bern

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    Language: French
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    DDC Categories: 890; 930
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  10. Innana E (4.07.5)
    Author: Attinger, Pascal
    Published: 2016
    Publisher:  Institut für archäologische Wissenschaften Universität Bern

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    Language: French
    Media type: Undefined
    Format: Online
    DDC Categories: 930; 890
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  11. Ishme-Dagan J (2.5.4.10 et 4.08.a)
    Author: Attinger, Pascal
    Published: 2015
    Publisher:  Institut für archäologische Wissenschaften Universität Bern

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    Language: French
    Media type: Undefined
    Format: Online
    DDC Categories: 930; 890
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  12. Ur-Ninurta B (2.5.6.2)
    Author: Attinger, Pascal
    Published: 2015
    Publisher:  Institut für archäologische Wissenschaften Universität Bern

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    Language: French
    Media type: Undefined
    Format: Online
    DDC Categories: 890; 930
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  13. Advanced learners’ comprehension of discourse connectives: The role of L1 transfer across on-line and off-line tasks.
    Author: Mak, Willem; Sanders, Ted; Degand, Liesbeth; Zufferey, Sandrine
    Published: 2015
    Publisher:  SAGE Publications

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    Language: English
    Media type: Undefined
    Format: Online
    DDC Categories: 840; 440
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  14. Une analyse des connecteurs pragmatiques fondée sur la théorie de la pertinence et son application au TALN
    Author: Zufferey, Sandrine
    Published: 2004
    Publisher:  Département de linguistique de l'Université de Genève

    Other ; Dans cet article, nous proposons d’appliquer une analyse des connecteurs pragmatiques issue de la théorie de la pertinence au traitement automatique des langues naturelles (TALN). Nous commencerons par montrer les conséquences de... more

     

    Other ; Dans cet article, nous proposons d’appliquer une analyse des connecteurs pragmatiques issue de la théorie de la pertinence au traitement automatique des langues naturelles (TALN). Nous commencerons par montrer les conséquences de l’application de la théorie de la pertinence sur l’étude des connecteurs, en prenant pour exemple les connecteurs de l’anglais. Dans un deuxième temps, nous exposerons les contraintes imposées par les limites actuelles du TALN. Enfin, nous proposerons un schéma d’étude des connecteurs pragmatiques pour le TALN ainsi qu’une esquisse d’application de cette méthode.

     
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  15. Connecteurs pragmatiques et métareprésentation: l’exemple de parce que
    Author: Zufferey, Sandrine
    Published: 2006
    Publisher:  Département de linguistique de l'Université de Genève

    Other ; L’objectif principal de cet article est de montrer que certains emplois des connecteurs pragmatiques nécessitent la construction d’une métareprésentation. Nous verrons d’abord que les capacités humaines de métareprésentation sont diverses et... more

     

    Other ; L’objectif principal de cet article est de montrer que certains emplois des connecteurs pragmatiques nécessitent la construction d’une métareprésentation. Nous verrons d’abord que les capacités humaines de métareprésentation sont diverses et montrerons ensuite que cette diversité se retrouve dans les différents types d’emplois des connecteurs. Nous proposerons une esquisse de modèle qui rend compte de cette propriété des connecteurs dans le cadre de la théorie de la pertinence. Enfin, nous testerons la validité de notre modèle en présentant des données dans le domaine de l’acquisition du langage, plus particulièrement sur la production de parce que chez des enfants entre deux et quatre ans.

     
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  16. Annotating discourse connectives by looking at their translation: The translation-spotting technique
    Author: Cartoni, Bruno; Zufferey, Sandrine; Meyer, Thomas
    Published: 2013
    Publisher:  Dialogue and Discourse

    Other ; The various meanings of discourse connectives like while and however are difficult to identify and annotate, even for trained human annotators. This problem is all the more important that connectives are salient textual markers of cohesion... more

     

    Other ; The various meanings of discourse connectives like while and however are difficult to identify and annotate, even for trained human annotators. This problem is all the more important that connectives are salient textual markers of cohesion and need to be correctly interpreted for many NLP applications. In this paper, we suggest an alternative route to reach a reliable annotation of connectives, by making use of the information provided by their translation in large parallel corpora. This method thus replaces the difficult explicit reasoning involved in traditional sense annotation by an empirical clustering of the senses emerging from the translations. We argue that this method has the advantage of providing more reliable reference data than traditional sense annotation. In addition, its simplicity allows for the rapid constitution of large annotated datasets.

     
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  17. Contrasting the Automatic Identification of Two Discourse Markers in Multiparty Dialogues
    Author: Popescu-Belis, Andrei; Zufferey, Sandrine
    Published: 2007
    Publisher:  (:null)

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    DDC Categories: 440; 840
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  18. Datenbank: Sprechsituationen lyrischer Dichtung
    Author: Petzold, Jochen
    Published: 2012
    Publisher:  Universität Regensburg

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    DDC Categories: 820
  19. Valores simbólicos de la luz y la oscuridad en las comedias de santos de Lope de Vega
    Author: Fernández Rodríguez, Natalia
    Published: 2015
    Publisher:  Università degli Studi di Milano

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    Language: English
    Media type: Undefined
    Format: Online
    DDC Categories: 460; 860
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  20. La Construccíon discursiva de identidades nacionales
    Author: Reisigl, Martin; De Cillia, Rudolf; Woddak, Ruth
    Published: 2015
    Publisher:  Universidad Autonoma de la Ciudad de Mexico

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    DDC Categories: 830; 430
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  21. Der tolerante Humanist
    Author: Mahlmann-Bauer, Barbara
    Published: 2015
    Publisher:  Abteilung Kommunikation, Universität Bern

    Other ; Sebastian Castellio und der Basler Humanismus more

     

    Other ; Sebastian Castellio und der Basler Humanismus

     
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    Language: German
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    DDC Categories: 830; 430; 270
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  22. La duchesse d'Enville à Genève, une aristocrate chez les Républicains
    Author: Crogiez, Michèle
    Published: 2015
    Publisher:  (:null)

    Other ; Admiratrice de Tronchin, la duchesse d'Enville se rend plusieurs fois à Genève pour de longs séjours. Elle y fréquente toute la bonne société. Et manifestement, elle y apprend à s'intéresser à la politique, à cause des troubles de la cité,... more

     

    Other ; Admiratrice de Tronchin, la duchesse d'Enville se rend plusieurs fois à Genève pour de longs séjours. Elle y fréquente toute la bonne société. Et manifestement, elle y apprend à s'intéresser à la politique, à cause des troubles de la cité, qu'elle observe en personne en 1765-1766 et, par l'intermédiaire de ses amis genevois, au début des années 1780. Cette expérience lui a-t-elle servi au début de la révolution française, à l'époque où son salon sert de lieu de rivalité aux Jacobins ?

     
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    Language: French
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    DDC Categories: 440; 840
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  23. Reconsidering Transcendence/Immanence. Modernity’s Modes of Narration in Nineteenth-Century Arabic Literary Tradition
    Author: Stephan, Johannes
    Published: 2016
    Publisher:  De Gruyter

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    Language: English
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    DDC Categories: 990; 290; 890; 490
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  24. Sprache – Macht – Geschlecht
    Author: Reisigl, Martin
    Published: 2015
    Publisher:  Interdisziplinäres Zentrum für Geschlechterforschung, Universität Bern

    Other ; Sprache, Macht und Geschlecht hängen zweifach zusammen. Sprache macht Geschlecht – vergessen wir nicht, dass Macht mit "vermögen" und "machen" zu tun hat – und Sprache konstitutiert Machtbeziehungen zwischen den Geschlechtern mit. Mit beidem... more

     

    Other ; Sprache, Macht und Geschlecht hängen zweifach zusammen. Sprache macht Geschlecht – vergessen wir nicht, dass Macht mit "vermögen" und "machen" zu tun hat – und Sprache konstitutiert Machtbeziehungen zwischen den Geschlechtern mit. Mit beidem befasst sich die Sprachwissenschaft seit den 1970er Jahren.

     
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    Language: German
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    DDC Categories: 430; 830
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  25. Les premiers récits de voyage au féminin en Pologne
    Author: Fournier Kiss, Corinne
    Published: 2016
    Publisher:  Presses universitaires Blaise Pascal

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    Language: French
    Media type: Undefined
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    DDC Categories: 370; 800; 890; 840; 440
    Subjects: rhetoric & criticism
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    info:eu-repo/semantics/openAccess