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  • PACS 21.60.Ev Collective models – 21.60.Jz Hartree-Fock approximation – 23.20.Lv Gamma transitions and level energies – 25.85.Ge Charged-particle-induced fission – 27.60.+j 90≤A≤149  (1)
  • Preoperative planning  (1)
  • Weichgewebesimulation  (1)
  • 2000-2004  (2)
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  • 2000-2004  (2)
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  • 1
    ISSN: 1434-601X
    Keywords: PACS 21.60.Ev Collective models – 21.60.Jz Hartree-Fock approximation – 23.20.Lv Gamma transitions and level energies – 25.85.Ge Charged-particle-induced fission – 27.60.+j 90≤A≤149
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The 104,106,108Ru nuclei have been produced as fission fragments following the fusion reaction 28Si + 176Yb at 145 MeV bombarding energy; prompt gamma rays emitted in the reaction were detected using the Eurogam II array. Their high-spin level schemes have been obtained, particularly several side bands have been extended or newly observed. Experimental results are discussed in the framework of both collective model and the rotating mean-field approach in which the Gogny force is the sole input. These calculations provide very good descriptions of both low-spin and high-spin structures observed in the neutron-rich even-A Ru isotopes.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-3940
    Keywords: Schlüsselwörter ; Dysgnathiechirurgie ; Operationssimulation ; Weichgewebesimulation ; Computersimulation ; Keywords ; Orthognathic surgery ; Preoperative planning ; Soft tissue simulation ; Computer-aided simulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Background In addition to standard X-rays, photographic documentation, cephalometric and model analysis, a computer-aided, three-dimensional (3D) simulation system has been developed in close cooperation with the Institute of Communications of the Friedrich-Alexander-Universität Erlangen-Nürnberg. With this simulation system a photorealistic prediction of the expected soft tissue changes can be made. Prerequisites are a 3D reconstruction of the facial skeleton and a 3D laser scan of the face. After data reduction, the two data sets can be matched. Cutting planes enable the transposition of bony segments. The laser scan of the facial surface is combined with the underlying bone via a five-layered soft tissue model to convert bone movements on the soft tissue cover realistically. Conclusion Further research is necessary to replace the virtual subcutaneous soft tissue model by correct, topographic tissue anatomy.
    Notes: Hintergrund Im Rahmen eines Sonderforschungsbereichs der Deutschen Forschungsgemeinschaft (SFB 603) wurde in Zusammenarbeit mit dem Lehrstuhl für Nachrichtentechnik der Universität Erlangen-Nürnberg ein computergestütztes Simulationssystem zur dreidimensionalen, fotorealistischen Vorhersage von Weichgewebeveränderungen nach orthognathen Eingriffen entwickelt. Voraussetzung sind 3D-CT-Datensätze des Gesichtsschädels sowie eine ebenfalls dreidimensionale Laserabtastung der Gesichtsoberfläche. Beide Datensätze können nach Datenreduktion über ein mathematisches Verfahren so miteinander verknüpft werden, dass mit Hilfe so genannter “cutting planes” Verlagerungen von Knochensegmenten auf das bedeckende Weichgewebe realitätsnah übertragen werden können. Schlussfolgerung Es bedarf weiterer Forschungsanstrengungen, um auch die subkutanen Weichgewebelagen so in das Simulationsmodell zu integrieren, dass noch bestehende Abweichungen korrigiert werden können.
    Type of Medium: Electronic Resource
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