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Jahresbericht 2006
(2007)
Aachen: Fachhochschule 2007. 80 S. Inhaltsverzeichnis 4 Vorwort des Rektors 5 Struktur der Hochschule 5 Struktur und Profil der Hochschule 6 Rektorat 7 Entwicklung der Hochschule 7 Aktuelle Entwicklung der Hochschule 9 Studium und Lehre 14 Forschung und Entwicklung 17 Technologie- und Wissenstransfer 20 Finanzen der Hochschule 24 Personal 26 Bauvorhaben 28 Chronik 2006 32 Fachbereiche 32 Fachbereich Architektur 35 Fachbereich Bauingenieurwesen 39 Fachbereich Angewandte Naturwissenschaften und Technik 43 Fachbereich Design 48 Fachbereich Elektrotechnik und Informationstechnik 52 Fachbereich Luft- und Raumfahrttechnik 54 Fachbereich Wirtschaftswissenschaften 57 Fachbereich Maschinenbau und Mechatronik 60 Zentrale Einrichtungen 60 Hochschulbibliothek 62 Datenverarbeitungszentrale (DVZ) 65 Allgemeine Studienberatung 67 Zentrale wissenschaftliche Einrichtungen 67 Solar-Institut Jülich (SIJ) 71 Internationalität 73 Frauenförderung 74 Presse- und Öffentlichkeitsarbeit/Marketing 74 Impressum
In: Advanced Engineering Informatics. Vol 21, Issue 1, 2007, Pages 67-83 http://dx.doi.org/10.1016/j.aei.2006.10.001 eds. J.C. Kunz, I.F.C. Smith and T. Tomiyama, Elsevier, Seite 1-22 Current CAD tools are not able to support the conceptual design phase, and none of them provides a consistency analysis for sketches produced by architects. This phase is fundamental and crucial for the whole design and construction process of a building. To give architects a better support, we developed a CAD tool for conceptual design and a knowledge specification tool. The knowledge is specific to one class of buildings and it can be reused. Based on a dynamic and domain-specific knowledge ontology, different types of design rules formalize this knowledge in a graph-based form. An expressive visual language provides a user-friendly, human readable representation. Finally, a consistency analysis tool enables conceptual designs to be checked against this formal conceptual knowledge. In this article, we concentrate on the knowledge specification part. For that, we introduce the concepts and usage of a novel visual language and describe its semantics. To demonstrate the usability of our approach, two graph-based visual tools for knowledge specification and conceptual design are explained.
This work describes a procedure to yield attenuation maps from MR images which are used for the absorption correction (AC) of brain PET data. Such an approach could be mandatory for future combined PET and MRI scanners, which probably do not include a transmission facility. T1-weighted MR images were segmented into brain tissue, bone, soft tissue, and sinus; attenuation coefficients corresponding to elemental composition and density as well as to 511 keV photon energy were respectively assigned. Attenuation maps containing up to four compartments were created and forward projected into sinograms with attenuation factors which then were used for AC during reconstruction of FDG-PET data. The commonly used AC based on a radioactive (68Ge) transmission scan served as reference. The reconstructed radioactivity values obtained with the MRI-based AC were about 20% lower than those obtained with PET-based AC if the skull was not taken into account. Considering the skull the difference was still about 10%. Our investigations demonstrate the feasibility of a MRI-based AC, but revealed also the necessity of a satisfying delineation of bone thickness which tends to be underestimated in our first approach of T1-weighted MR image segmentation.
Abfallwirtschaft
(2007)
Siedlungswasserwirtschaft
(2007)
Geotechnik
(2007)
Denk- und Lernspielzeug : Offenlegungsschrift : DE 102006003433 A1 ; Offenlegungstag: 26.07.2007
(2007)
Media Delivery Based on Service Aware Transport Overlay Networks / Kampmann, Markus ; Hartung, Frank
(2007)