@inproceedings{HeerRedkowitzKraft2008,
  author    = {Heer, Thomas and Redkowitz, Daniel and Kraft, Bodo},
  title     = {Tool Support for the Integration of Light-Weight Ontologies},
  isbn      = {978-3-642-00670-8},
  year      = {2008},
  abstract  = {Abstract of the authors: In many areas of computer science ontologies become more and more important. The use of ontologies for domain modeling often brings up the issue of ontology integration. The task of merging several ontologies, covering specific subdomains, into one united ontology has to be solved. Many approaches for ontology integration aim at automating the process of ontology alignment. However, a complete automation is not feasible, and user interaction is always required. Nevertheless, most ontology integration tools offer only very limited support for the interactive part of the integration process. In this paper, we present a novel approach for the interactive integration of ontologies. The result of the ontology integration is incrementally updated after each definition of a correspondence between ontology elements. The user is guided through the ontologies to be integrated. By restricting the possible user actions, the integrity of all defined correspondences is ensured by the tool we developed. We evaluated our tool by integrating different regulations concerning building design.},
  subject      = {Ontologie <Wissensverarbeitung>},
  language  = {de}
}
@inproceedings{KraftRetkowitz2006,
  author    = {Kraft, Bodo and Retkowitz, Daniel},
  title     = {Graph Transformations for Dynamic Knowledge Processing},
  year      = {2006},
  abstract  = {In: Proceedings of the 39th Annual Hawaii International Conference on System Sciences, 2006. HICSS '06 http://dx.doi.org/10.1109/HICSS.2006.200 The conceptual design phase at the beginning of the building construction process is not adequately supported by any CAD-tool. Conceptual design support needs regarding two aspects: first, the architect must be able to develop conceptual sketches that provide abstraction from constructive details. Second, conceptually relevant knowledge should be available to check these conceptual sketches. The paper deals with knowledge to formalize for conceptual design. To enable domain experts formalizing knowledge, a graph-based specification is presented that allows the development of a domain ontology and design rules specific for one class of buildings at runtime. The provided tool support illustrates the introduced concepts and demonstrates the consistency analysis between knowledge and conceptual design.},
  subject      = {CAD},
  language  = {de}
}
@inproceedings{KraftRetkowitz2005,
  author    = {Kraft, Bodo and Retkowitz, Daniel},
  title     = {Operationale Semantikdefinition f{\"u}r konzeptuelles Regelwissen},
  year      = {2005},
  abstract  = {In: Forum Bauinformatik 2005 : junge Wissenschaftler forschen / [Lehrstuhl Bauinformatik, Brandenburgische Technische Universit{\"a}t Cottbus. Frank Schley ... (Hrsg.)]. - Cottbus : Techn. Universit{\"a}t 2005. S. 1-10 ISBN 3-934934-11-0 Mittels eines operationalen Ansatzes zur Semantikdefinition wird am Bei-spiel des konzeptuellen Geb{\"a}udeentwurfs ein Regelsystem formalisiert. Dazu werdenzwei Teile, zum einen das Regelwissen, zum anderen ein konzeptueller Entwurfsplan zun{\"a}chst informell eingef{\"u}hrt und dann formal beschrieben. Darauf aufbauend wird die Grundlage f{\"u}r eine Konsistenzpr{\"u}fung des konzeptuellen Entwurfs gegen das Regel-wissen formal angeben},
  subject      = {CAD},
  language  = {de}
}
@inproceedings{KraftNagl2004,
  author    = {Kraft, Bodo and Nagl, Manfred},
  title     = {Parameterized specification of conceptual design tools in civil engineering},
  year      = {2004},
  abstract  = {Applications of Graph Transformations with Industrial Relevance Lecture Notes in Computer Science, 2004, Volume 3062/2004, 90-105, DOI: 10.1007/978-3-540-25959-6_7 In this paper we discuss how tools for conceptual design in civil engineering can be developed using graph transformation specifications. These tools consist of three parts: (a) for elaborating specific conceptual knowledge (knowledge engineer), (b) for working out conceptual design results (architect), and (c) automatic consistency analyses which guarantee that design results are consistent with the underlying specific conceptual knowledge. For the realization of such tools we use a machinery based on graph transformations. In a traditional PROGRES tool specification the conceptual knowledge for a class of buildings is hard-wired within the specification. This is not appropriate for the experimentation platform approach we present in this paper, as objects and relations for conceptual knowledge are due to many changes, implied by evaluation of their use and corresponding improvements. Therefore, we introduce a parametric specification method with the following characteristics: (1) The underlying specific knowledge for a class of buildings is not fixed. Instead, it is built up as a data base by using the knowledge tools. (2) The specification for the architect tools also does not incorporate specific conceptual knowledge. (3) An incremental checker guarantees whether a design result is consistent with the current state of the underlying conceptual knowledge (data base).},
  subject      = {CAD},
  language  = {de}
}
@inproceedings{KraftNagl2003,
  author    = {Kraft, Bodo and Nagl, Manfred},
  title     = {Support of Conceptual Design in Civil Engineering by Graph-based Tools},
  year      = {2003},
  abstract  = {WS GTaD-2003 - The 1st Workshop on Graph Transformations and Design ed Grabska, E., Seite 6-7, Jagiellonian University Krakow. 2 pages},
  subject      = {CAD},
  language  = {de}
}
@inproceedings{GroebelKowollikCrummenerletal.2009,
  author    = {Groebel, Simone and Kowollik, Silvia and Crummenerl, Silvia and Sch{\"o}ning, Michael Josef},
  title     = {2. Graduiertentagung : 5. November 2009 / [Hrsg.: S. Groebel ; S. Kowollik ; S. Crummenerl ; M. J. Sch{\"o}ning]},
  organization    = {FH Aachen, University of Applied Sciences / Graduiertentagung <2, 2009>},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-3131},
  year      = {2009},
  abstract  = {Tagungsband der Graduiertentagung der FH Aachen, in dem Doktorandinnen und Doktoranden und ihre Forschungsbereiche vorgestellt werden},
  subject      = {Aachen / Fachhochschule Aachen ; Graduierter ; Promotionsstudium},
  language  = {de}
}
@inproceedings{RoderburgSchoening2008,
  author    = {Roderburg, Katharina and Sch{\"o}ning, Michael Josef},
  title     = {1. Graduierten-Tagung : 9. September 2008 / [Hrsg.: K. Roderburg ; M. J. Sch{\"o}ning]},
  organization    = {FH Aachen, University of Applied Sciences / Graduiertentagung <1, 2008>},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-3125},
  year      = {2008},
  abstract  = {Tagungsband der Graduiertentagung der FH Aachen, in dem Doktorandinnen und Doktoranden und ihre Forschungsbereiche vorgestellt werden},
  subject      = {Aachen / Fachhochschule Aachen},
  language  = {de}
}
@inproceedings{BehrensFrentzelKern2009,
  author    = {Behrens, J{\"o}rg and Frentzel, Ralf and Kern, Alexander},
  title     = {Simulation der transienten Spannungsverl{\"a}ufe im Eigenbedarfsnetz eines Großkraftwerks bei einem kraftwerksnahen Blitzeinschlag in die Hochspannungs-Freileitung},
  isbn      = {978-3-8007-3197-8},
  year      = {2009},
  abstract  = {8. VDE/ABB-Blitzschutztagung, 29. - 30. Oktober 2009 in Neu-Ulm. Blitzschutztagung <8, 2009, Neu-Ulm> Berlin : VDE Verl. 2009 Großkraftwerke k{\"o}nnen durch Blitzentladungen mit potentiellen Auswirkungen auf deren Verf{\"u}gbarkeit und Sicherheit gef{\"a}hrdet werden. Ein sehr spezielles Szenario, welches aus aktuellem Anlass zu untersuchen war, betrifft den kraftwerksnahen Blitzeinschlag in die Hochspannungs-Freileitung am Netzanschluss der Anlage. Wird nun noch ein sogenannter Schirmfehler unterstellt, d.h. der direkte Blitzeinschlag erfolgt in ein Leiterseil des Hoch- bzw. H{\"o}chstspannungsnetzes und nicht in das dar{\"u}ber gespannte Erdseil, so bedeutet dies eine extreme elektromagnetische Einwirkung. Der vorliegende Beitrag befasst sich mit der Simulation eines solchen Blitzeinschlages und dessen Auswirkungen auf den Netzanschluss und die Komponenten der elektrischen Eigenbedarfsanlagen eines Kraftwerks auf den unterlagerten Spannungsebenen. Die dabei gewonnenen Erkenntnisse lassen sich ohne Einschr{\"a}nkungen auf Industrieanlagen mit Mittelspannungs-Netzanschluss und ohne eigener Stromversorgung {\"u}bertragen.},
  subject      = {Blitzschutz},
  language  = {de}
}
@inproceedings{KernBeierlZischank2009,
  author    = {Kern, Alexander and Beierl, Ottmar and Zischank, Wolfgang},
  title     = {Calculation of the separation distance according to IEC 62305-3: 2006-10 - Remarks for the application and simplified methods},
  year      = {2009},
  abstract  = {[Paper of the X International Symposium on Lightning Protection 9th - 13th November, 2009 - Curitiba, Brazil. 6 pages] The international standard IEC 62305-3, published in 2006, requires as an integral part of the lightning protection system (LPS) the consideration of a separation distance between the conductors of the LPS and metal and electrical installations inside the structure to be protected. IEC 62305-3 gives two different methods for this calculation: a standard, simplified approach and a more detailed approach, which differ especially regarding the treatment of the current sharing effect on the LPS conductors. Hence, different results for the separation distance are possible, leading to some discrepancies in the use of the standard. The standard approach defined in the main part (Clause 6.3) and in Annex C of the standard in some cases may lead to a severe oversizing of the required separation distance. The detailed approach described in Annex E naturally gives more correct results. However, a calculation of the current sharing amongst all parts of the air-termination and downconductor network is necessary, in many cases requiring the use of network analysis programs. In this paper simplified methods for the assessment of the current sharing are presented, which are easy to use as well as sufficiently adequate.},
  subject      = {Blitzschutz},
  language  = {de}
}
@inproceedings{OPUS4-260,
  title     = {Alfha.net / Sektion Bauingenieurwesen: 2. [Zweiter] Erfahrungsaustausch am Fachbereich Bauingenieurwesen : Absolventen berichten aus der Praxis},
  organization    = {FH Aachen, University of Applied Sciences},
  year      = {2008},
  abstract  = {Inhaltsverzeichnis: Kettern, J{\"u}rgen : Grußwort des Dekans Kleiker, Walter : Grußwort des Sektionsleiters Bau des alpha.net Wijnhoven, Ralf : Bauausf{\"u}hrung von 14 Brunnenanlagen und 4 km Rohrleitung zur Regelung des Grundwasserstandes und der Vorflut in Voerde-Mehrum. S. 10-11 Ruwisch, Thomas : Spurplan{\"a}nderung im Bahnhof D{\"u}sseldorf-Gerresheim : Wusch, Planung, Planrecht und die Umwelt. S. 12-13. Rickes, Tanja : Bauablaufsteuerung einer Linienbaustelle am Beispiel des Fahrbahnbaus der "HSL-Zuid". S. 14-15. Plum, Andreas : Brandschutzingenieurwesen - Eine Ingenieurdisziplim hat die Akzeptanzschwelle {\"u}berschritten. Teil 1: Brandsimulationsberechnung. S. 18-19 Flesch, Tobias : Brandschutzingenieurwesen - Eine Ingenieurdisziplin hat die Akzeptanzschwelle {\"u}berschritten. Teil 2: Tragwerksbemessung im Brandfall. S. 20-21. M{\"u}ller, Bert : Neubau f{\"u}r die Mediengruppe RTL-Deutschland - High-Tech in dankmalgesch{\"u}tzter Fassade. S. 24-25. Hermens, Gereon : Erh{\"o}hung der Akzeptanz von Wasserkraft durch den Bau von Fischaufstiegsanlagen: Umweltschonende Energie f{\"u}r Natur und Klima. S. 26-27 Klitzing, Bastian : Kl{\"a}ranlagenoptimierung : Zukunftsweisende Planungen im Bereich Abwasserreinigung und Energiegewinnung. S. 28-29. Ginster, Marco : Die neue Rheinbr{\"u}cke Wesel. S. 32-33 Tilke, Hermann ; Wersch, Ralf van : Bauen f{\"u}r einen schnellen Sport. S. 34-35.},
  subject      = {Aachen / Fachhochschule Aachen / Fachbereich Bauingenieurwesen},
  language  = {de}
}