@article{9569,
  abstract     = {{Ultrasonic hyperthermia and thermo-ablation are two promising alternatives for local overheating of deep-seated human tumours. After a short characterisation of the two techniques and the identification of the main parameters, results of an analytical theory of local heat up, cooling, and heat diffusion are presented. The theory is based on a spherical model for hyperthermia with a critical thermal dose and on a cylinder-symmetrical model for thermo-ablation with a critical temperature threshold for thermal toxicity and cell death through coagulative necrosis. Two representative hard ware concepts are discussed. The hyperthermia applicator consists of a MHz transducer, which rotates concentrically in a water filled capsule with acoustically transparent window, and radiates collimated or focussed ultrasound under 45$\,^{\circ}$ into a concentric target area of nearly spherical symmetry. The applicator for thermo-ablation is a MHz transducer which radiates high intensity focussed ultrasound (HIFU) into "cigar shaped" target areas at the focal zone. Typical therapy diagrams for both techniques are presented. They show therapeutic target volumes as functions of the therapy time with the peak temperature or the radiated acoustic power as parameters. These diagrams are discussed under consideration of power requirement, maximal sound intensity, and power efficiency at close to optimized frequency conditions.}},
  author       = {{Lierke, Ernst-Günter and Hemsel, Tobias}},
  journal      = {{Acta Acustica united with Acustica}},
  number       = {{3}},
  pages        = {{369--381}},
  title        = {{{Local Ultrasonic Hyperthermia and Thermo-ablation: A Description and Theoretical Evaluation of Two Alternative Concepts for the Heat Therapy of Tumours}}},
  doi          = {{10.3813/AAA.918044}},
  volume       = {{94}},
  year         = {{2008}},
}

@inproceedings{9570,
  abstract     = {{EN: Although the use of new actuator technologies is quite enthusiastic, the realization of innovative systems based on these principles fails because of doubts in dependability. Until now, new working principles for actuators have not been systematically investigated in the means of dependability. Therefore we developed a proceeding for a dependability-oriented evaluation of technologies. This is shown in the case of shape memory alloy actuators. 
DE: Die Realisierung von Systemen mittels innovativer Aktortechnologien scheitert oftmals an der Skepsis gegenüber der Verlässlichkeit (Vertrauen in die zuverlässige und sichere Funktionalität der Technologie). Diese liegt darin begründet, dass neue Aktortechnologien bzw. die Integration von innovativen physikalischen Wirkprinzipen innerhalb neuer Aktorkonzepte bisher noch nicht systematisch im Kontext der Verlässlichkeit untersucht werden. Daher haben wir ein Vorgehen zur verlässlichkeitsorientierten Technologiebewertung entwickelt. Neben der detaillierten Darstellung des Vorgehensmodells wird es exemplarisch anhand von Formgedächtnislegierungen zur Entwicklung innovativer Antriebslösungen angewendet.}},
  author       = {{Müller, Thomas and Schiedeck, Florian and Hemsel, Tobias}},
  booktitle    = {{2. Tagung des DVM -- Arbeitskreis Zuverlässigkeit mechatronischer und adaptronischer Systeme: Absicherung der Systemzuverlässigkeit, Koblenz}},
  keywords     = {{EN: Dependability, Reliability, Evaluation of Technology, Actuators, Shape Memory Alloys DE: Verl{\}},
  title        = {{{Verlässlichkeitorientierte Technologiebewertung innovativer Aktortechnologien am Beispiel von Formgedächtnislegierungen}}},
  year         = {{2008}},
}

@article{9571,
  abstract     = {{Several positioning tasks demand translatory drive instead of rotary motion. To achieve drives that are capable, e.g., to drive the sunroof of a car or to lift a car's window, multiple miniaturized motors can be combined. But in this case many other questions arise: The electromechanical behavior of the individual motors differs slightly, the motor characteristics are strongly dependent on the driving parameters and the driven load, many applications need some extra power for special cases like overcoming higher forces periodically. Thus, the bundle of motors has to act well-organized and at last controlled to get an optimized drive that is not oversized and costly.}},
  author       = {{Mracek, Maik and Hemsel, Tobias and Sattel, Thomas and Vasiljev, Piotr and Wallaschek, Jörg}},
  issn         = {{1385-3449}},
  journal      = {{Journal of Electroceramics}},
  keywords     = {{Ultrasonic linear motor, High power, Control, Modeling, Characteristics}},
  number       = {{3-4}},
  pages        = {{153--158}},
  publisher    = {{Springer US}},
  title        = {{{Driving concepts for bundled ultrasonic linear motors}}},
  doi          = {{10.1007/s10832-007-9123-5}},
  volume       = {{20}},
  year         = {{2008}},
}

@inproceedings{7994,
  abstract     = {{This paper depicts the evolution of enterprise architectures to their today often used service-oriented form and presents a state-of-the-art development process for this kind of architecture. The development process covers both the development of business architecture as well as the appropriate software architecture. While showing up a possible form of further evolution of enterprise architectures, we identify the major challenges for future development methods of enterprise architectures.}},
  author       = {{Assmann, Martin and Engels, Gregor}},
  booktitle    = {{Proc. of the 12th IEEE International Enterprise Distributed Object Computing Conference 2008 (EDOC 08), Munich (Germany)}},
  pages        = {{xxxiv--xliii}},
  publisher    = {{IEEE Computer Society}},
  title        = {{{Service-Oriented Enterprise Architectures: Evolution of Concepts and Methods}}},
  doi          = {{https://groups.uni-paderborn.de/fg-engels/Publications/10.1109/EDOC.2008.48}},
  year         = {{2008}},
}

@inproceedings{7995,
  abstract     = {{Enterprise Architecture (EA) has undergone many changes since the IT has found its way into enterprises. At the moment the Service-Oriented Architecture (SOA) is being hyped but has also gained some importance. Implementing SOA can have many implications for an enterprise, depending on how visionary the implemented architecture is. This paper provides the description of an enterprise architecture that is fully-fledged concerning service-orientation and points out the architectural challenges that have to be mastered with future research results.}},
  author       = {{Assmann, Martin and Engels, Gregor}},
  booktitle    = {{Proceedings of the Second European Conference on Software Architecture (ECSA 2008), Paphos (Cyprus)}},
  pages        = {{346--349}},
  publisher    = {{Springer}},
  title        = {{{Transition to Service-Oriented Enterprise Architecture}}},
  doi          = {{http://dx.doi.org/10.1007/978-3-540-88030-1_34}},
  volume       = {{5292}},
  year         = {{2008}},
}

@inproceedings{7996,
  author       = {{Salger, Frank and Bennicke, Marcel and Engels, Gregor and Lewerentz, Claus}},
  booktitle    = {{Quality of Software Architectures. Models and Architectures}},
  pages        = {{205--219}},
  publisher    = {{Springer}},
  title        = {{{Comprehensive Architecture Evaluation and Management in Large Software-Systems}}},
  doi          = {{http://dx.doi.org/10.1007/978-3-540-87879-7_13}},
  volume       = {{5281}},
  year         = {{2008}},
}

@inproceedings{7997,
  author       = {{Engels, Gregor and Voß, Markus}},
  booktitle    = {{Software Engineering 2008. Fachtagung des GI-Fachbereichs Softwaretechnik}},
  pages        = {{24--27}},
  publisher    = {{Gesellschaft für Informatik (GI)}},
  title        = {{{Quasar Enterprise - Anwendungslandschaften serviceorientiert gestalten}}},
  volume       = {{121}},
  year         = {{2008}},
}

@inproceedings{7998,
  abstract     = {{Business-driven development favors the construction of process models at different abstraction levels and by different people. As a consequence, there is a demand for consolidating different versions of process models by detecting and resolving differences. Existing approaches rely on the existence of a change log which logs the changes when changing a process model. However, in several scenarios such a change log does not exist and differences must be identified by comparing process models before and after changes have been made. In this paper, we present our approach to detecting and resolving differences between process models, in the absence of a change log. It is based on computing differences and deriving change operations for resolving differences, thereby providing a foundation for variant and version management in these cases.}},
  author       = {{Küster, Jochen and Gerth, Christian and Förster, Alexander and Engels, Gregor}},
  booktitle    = {{Proceedings of the 6th International Conference on Business Process Management (BPM'08)}},
  pages        = {{244--260}},
  publisher    = {{Springer}},
  title        = {{{Detecting and Resolving Process Model Differences in the Absence of a Change Log}}},
  doi          = {{http://dx.doi.org/10.1007/978-3-540-85758-7_19}},
  volume       = {{5240}},
  year         = {{2008}},
}

@inproceedings{7999,
  author       = {{Engels, Gregor and Hess, Andreas and Humm, Bernhard and Juwig, Oliver and Lohmann, Marc and Richter, Jan-Peter and Voß, Markus and Willkomm, Johannes}},
  booktitle    = {{Proceedings of the Tenth International Conference on Enterprise Information Systems (ICEIS 2008), Barcelona (Spain)}},
  pages        = {{272--281}},
  publisher    = {{Springer}},
  title        = {{{A Method for Engineering a true Service-Oriented Architecture}}},
  volume       = {{ISAS-2}},
  year         = {{2008}},
}

@inproceedings{8000,
  abstract     = {{Rapid and precise effort estimation of software development projects is crucial in IT industry. In a case study, the Use Case Point (UCP) method was applied to 15 commercial software development projects. The estimated efforts were compared with the incurred project efforts. We measured a standard deviation of 42 %. This is not acceptable for industrial usage. Therefore, we propose appropriate improvements of the Use Case Point method leading to significantly higher estimation accuracy with only 20 % standard deviation. The contribution of this paper is a detailed description of the improved Use Case Point method.}},
  author       = {{Frohnhoff, Stephan and Engels, Gregor}},
  booktitle    = {{Setting Quality Standards, Proceedings of the 11th International Conference on Quality Engineering in Software Technology (CONQUEST 2008), Potsdam (Germany)}},
  pages        = {{15--32}},
  publisher    = {{dpunkt Verlag}},
  title        = {{{Revised Use Case Point Method - Effort Estimation in Development Projects for Business Applications}}},
  year         = {{2008}},
}

@inproceedings{8001,
  author       = {{Mlynarski, Michael}},
  booktitle    = {{Informatiktage 2008. Fachwissenschaftlicher Informatik-Kongress, 14. und 15. März 2008, B-IT Bonn-Aachen International Center for Information Technology in Bonn}},
  pages        = {{87--90}},
  publisher    = {{Gesellschaft für Informatik (GI)}},
  title        = {{{Qualitätssicherung im Business Process Modeling durch automatische Ableitung visueller Kontrakte aus heterogenen UML-Modellen}}},
  year         = {{2008}},
}

@inproceedings{8002,
  author       = {{Koehler, Jana and Gschwind, Thomas and Küster, Jochen and Pautasso, Cesare and Ryndina, Ksenia and Vanhatalo, Jussi and Völzer, Hagen}},
  booktitle    = {{Proceedings of the 3rd International Symposium on Applications of Graph Transformations with Industrial Relevance 2007 (AGTIVE '07), Kassel (Germany)}},
  pages        = {{1--16}},
  publisher    = {{Springer}},
  title        = {{{Combining Quality Assurance and Model Transformations in Business-Driven Development}}},
  doi          = {{http://dx.doi.org/10.1007/978-3-540-89020-1_1}},
  volume       = {{5088}},
  year         = {{2008}},
}

@inproceedings{8003,
  abstract     = {{Der Goal Question Metric (GQM) Ansatz stellt eine allgemeine Qualitätsmanagementstrategie dar und berücksichtigt infolgedessen nicht die Besonderheiten von Software-Modellen. Wir haben eine kontextsensitive Qualitätsplanung für Software- Modelle entwickelt, die den GQM-Ansatz auf die Qualitätsplanung von Software- Modellen zuschneidet und um Konzepte und Aktivitäten erweitert. Dabei konzentrieren wir uns auf den Kontext eines Software-Modells als entscheidenden Einflussfaktor für die Dokumentation von Informationsbedürfnissen, Qualitätsverständnis und Messung. Unser Ansatz zur Qualitätsplanung besteht aus einem Metamodell zur Formulierung relevanter Inhalte und einem Prozess, der als Leitfaden bei der Planung dient.}},
  author       = {{Voigt, Hendrik and Engels, Gregor}},
  booktitle    = {{Proceedings of Modellierung (2008), Berlin (Germany)}},
  pages        = {{165--180}},
  publisher    = {{Gesellschaft für Informatik (GI)}},
  title        = {{{Kontextsensitive Qualitätsplanung für Software-Modelle}}},
  volume       = {{127}},
  year         = {{2008}},
}

@inproceedings{8004,
  author       = {{Voigt, Hendrik and Engels, Gregor}},
  booktitle    = {{Proceedings of Software-Qualitätsmodellierung und -bewertung (SQMB '08), München, Germany}},
  pages        = {{39--46}},
  publisher    = {{Technische Universität München}},
  title        = {{{Ein verfeinerter GQM-Ansatz zur Qualitätsbewertung von Software-Modellen}}},
  year         = {{2008}},
}

@inproceedings{8005,
  author       = {{Voigt, Hendrik and Güldali, Baris and Engels, Gregor}},
  booktitle    = {{Proceedings of the 11th International Conference on Quality Engineering in Software Technology (CONQUEST 2008), Potsdam (Germany)}},
  pages        = {{353--370}},
  publisher    = {{dpunkt.verlag}},
  title        = {{{Quality Plans for Measuring the Testability of Models}}},
  year         = {{2008}},
}

@inproceedings{8006,
  author       = {{Voigt, Hendrik and Ruhroth, Thomas}},
  booktitle    = {{Proceedings of the 27th International Conference on Conceptual Modeling (ER 2008), Barcelona, Spain}},
  pages        = {{526--527}},
  publisher    = {{Springer}},
  title        = {{{A Quality Circle Tool for Software Models}}},
  doi          = {{http://dx.doi.org/10.1007/978-3-540-87877-3_44}},
  volume       = {{5231}},
  year         = {{2008}},
}

@inproceedings{8007,
  author       = {{Wahler, Michael and Küster, Jochen}},
  booktitle    = {{Proceedings of the 6th International Conference on Business Process Management}},
  pages        = {{148--163}},
  publisher    = {{Springer}},
  title        = {{{Predicting Coupling of Object-Centric Business Process Implementations}}},
  doi          = {{http://dx.doi.org/10.1007/978-3-540-85758-7}},
  volume       = {{5240}},
  year         = {{2008}},
}

@inproceedings{8008,
  author       = {{Wübbeke, Andreas}},
  booktitle    = {{Proceedings of the 12th International Software Product Line Conference (SPLC 2008), Limerick (Ireland)}},
  pages        = {{361--368}},
  publisher    = {{Lero}},
  title        = {{{Towards an Efficient Reuse of Test Cases for Software Product Lines}}},
  volume       = {{2}},
  year         = {{2008}},
}

@inproceedings{822,
  author       = {{H. Woldegebreal, Dereje and Karl, Holger}},
  booktitle    = {{Wireless Sensor Networks, 5th European Conference, EWSN 2008, Bologna, Italy, January 30-February 1, 2008, Proceedings}},
  pages        = {{141----155}},
  title        = {{{Network-Coding-Based Cooperative Transmission in Wireless Sensor Networks: Diversity-Multiplexing Tradeoff and Coverage Area Extension}}},
  doi          = {{10.1007/978-3-540-77690-1_9}},
  year         = {{2008}},
}

@inproceedings{823,
  author       = {{Valentin, Stefan and Freitag, Thomas and Karl, Holger}},
  booktitle    = {{Proceedings of IEEE International Conference on Communications, ICC 2008, Beijing, China, 19-23 May 2008}},
  pages        = {{3328----3334}},
  title        = {{{Integrating Multiuser Dynamic OFDMA into IEEE 802.11 WLANs - LLC/MAC Extensions and System Performance}}},
  doi          = {{10.1109/ICC.2008.626}},
  year         = {{2008}},
}