@inproceedings{23173, author = {{Hassan, Bassem and Wassmann, Helene and Klaas, Alexander and Kessler, Jan Henning}}, booktitle = {{Proceedings of the 2012 Emerging M&S Applications in Industry & Academia Symposium, Spring Simulation Multiconference}}, title = {{{Cascaded Heterogeneous Simulations for Analysis of Mechatronic Systems in Large Scale Transportation Scenarios}}}, year = {{2012}}, } @inproceedings{21680, abstract = {{The costs of additive manufactured parts often seem too high in comparison to those of traditionally manufactured parts, as the information about major cost drivers, especially for additive manufactured metal parts, is weak. Therefore, a lifecycle analysis of additive manufactured parts is needed to understand and rate the cost drivers that act as the largest contributors to unit costs, and to provide a focus for future cost reduction activities for the Additive Manufacturing (AM) technology. A better understanding of the cost structure will help to compare the AM costs with the opportunity costs of the classical manufacturing technologies and will make it easier to justify the use of AM manufactured parts. This paper will present work in progress and methodology based on a sample investigated with business process analysis / simulation and activity based costing. In addition, cost drivers associated with metal AM process will be rated.}}, author = {{Lindemann, C. and Jahnke, U. and Moi, M. and Koch, R.}}, booktitle = {{23rd Annual International Solid Freeform Fabrication Symposium}}, isbn = {{1053-2153}}, pages = {{177--188}}, title = {{{Analyzing Product Lifecycle Costs for a Better Understanding of Cost Drivers in Additve Manufacturing}}}, doi = {{http://utw10945.utweb.utexas.edu/Manuscripts/2012/2012-12-Lindemann.pdf}}, volume = {{23}}, year = {{2012}}, } @article{21757, author = {{Koning, W. F.}}, journal = {{IEEE Computer Graphics and Applications}}, number = {{5}}, pages = {{81--83}}, publisher = {{IEEE}}, title = {{{Teaching 3D Computer Animation to Illustrators: The Instructor as Translator and Technical Director}}}, doi = {{10.1109/MCG.2012.106}}, volume = {{32}}, year = {{2012}}, } @inproceedings{2178, author = {{Gesing, Sandra and Herres-Pawlis, Sonja and Birkenheuer, Georg and Brinkmann, André and Grunzke, Richard and Kacsuk, Peter and Kohlbacher, Oliver and Kozlovszky, Miklos and Krüger, Jens and Müller-Pfefferkorn, Ralph and Schäfer, Patrick and Steinke, Thomas}}, booktitle = {{Proceedings of Science}}, title = {{{A Science Gateway Getting Ready for Serving the International Molecular Simulation Community}}}, volume = {{PoS(EGICF12-EMITC2)050}}, year = {{2012}}, } @inproceedings{788, author = {{Dannewitz, Christian and Herlich, Matthias and Karl, Holger}}, booktitle = {{37th Annual IEEE Conference on Local Computer Networks, Workshop Proceedings, Clearwater Beach, FL, USA, October 22-25, 2012}}, pages = {{1061----1069}}, title = {{{OpenNetInf - prototyping an information-centric Network Architecture}}}, doi = {{10.1109/LCNW.2012.6424044}}, year = {{2012}}, } @inproceedings{790, author = {{Dräxler, Martin and Beister, Frederic and Kruska, Stephan and Aelken, J. and Karl, Holger}}, booktitle = {{International ICST Conference on Simulation Tools and Techniques, SIMUTOOLS '12, Sirmione-Desenzano, Italy, March 19-23, 2012}}, pages = {{157----165}}, title = {{{Using OMNeT++ for energy optimization simulations in mobile core networks}}}, doi = {{10.4108/icst.simutools.2012.247676}}, year = {{2012}}, } @inproceedings{619, abstract = {{Dynamics in networks is caused by a variety of reasons, like nodes moving in 2D (or 3D) in multihop cellphone networks, joins and leaves in peer-to-peer networks, evolution in social networks, and many others. In order to understand such kinds of dynamics, and to design distributed algorithms that behave well under dynamics, many ways to model dynamics are introduced and analyzed w.r.t. correctness and eciency of distributed algorithms. In [16], Kuhn, Lynch, and Oshman have introduced a very general, worst case type model of dynamics: The edge set of the network may change arbitrarily from step to step, the only restriction is that it is connected at all times and the set of nodes does not change. An extended model demands that a xed connected subnetwork is maintained over each time interval of length T (T-interval dynamics). They have presented, among others, algorithms for counting the number of nodes under such general models of dynamics.In this paper, we generalize their models and algorithms by adding random edge faults, i.e., we consider fault-prone dynamic networks: We assume that an edge currently existing may fail to transmit data with some probability p. We rst observe that strong counting, i.e., each node knows the correct count and stops, is not possible in a model with random edge faults. Our main two positive results are feasibility and runtime bounds for weak counting, i.e., stopping is no longer required (but still a correct count in each node), and for strong counting with an upper bound, i.e., an upper bound N on n is known to all nodes.}}, author = {{Brandes, Philipp and Meyer auf der Heide, Friedhelm}}, booktitle = {{Proceedings of the 4th Workshop on Theoretical Aspects of Dynamic Distributed Systems (TADDS)}}, pages = {{9--14}}, title = {{{Distributed Computing in Fault-Prone Dynamic Networks}}}, doi = {{10.1145/2414815.2414818}}, year = {{2012}}, } @misc{634, author = {{Kratzmann, Julian}}, publisher = {{Universität Paderborn}}, title = {{{Analyse und Simulation von energieeffizienten Online-Scheduling Algorithmen}}}, year = {{2012}}, } @article{4706, abstract = {{Purpose – The purpose of this paper is to show how to employ complex event processing (CEP) for the observation and management of business processes. It proposes a conceptual architecture of BPM event producer, processor, and consumer and describes technical implications for the application with standard software in a perfect order scenario. Design/methodology/approach – The authors discuss business process analytics as the technological background. The capabilities of CEP in a BPM context are outlined an architecture design is proposed. A sophisticated proof-of-concept demonstrates its applicability. Findings – The results overcome the separation and data latency issues of process controlling, monitoring, and simulation. Distinct analyses of past, present, and future blur into a holistic real-time approach. The authors highlight the necessity for configurable event producer in BPM engines, process event support in CEP engines, a common process event format, connectors to visualizers, notifiers and return channels to the BPM engine. Research limitations/implications – Further research will thoroughly evaluate the approach in a variety of business settings. New concepts and standards for the architecture's building blocks will be needed to improve maintainability and operability. Practical implications – Managers learn how CEP can yield insights into business processes' operations. The paper illustrates a path to overcome inflexibility, latency, and missing feedback mechanisms of current process modeling and control solutions. Software vendors might be interested in the conceptualization and the described needs for further development. Originality/value – So far, there is no commercial CEP-based BPM solution which facilitates a round trip from insight to action as outlines. As major software vendors have begun developing solutions (BPM/BPA solutions), this paper will stimulate a debate between research and practice on suitable design and technology.}}, author = {{Janiesch, Christian and Matzner, Martin and Müller, Oliver}}, isbn = {{1020120096}}, issn = {{14637154}}, journal = {{Business Process Management Journal}}, keywords = {{Architecture, Business activity monitoring, Business process management, Business process re-engineering, Complex event processing, Computer software, Standard software}}, number = {{4}}, pages = {{625----643}}, title = {{{Beyond process monitoring: A proof-of-concept of event-driven business activity management}}}, doi = {{10.1108/14637151211253765}}, year = {{2012}}, } @inproceedings{9784, abstract = {{Piezoelectric inertia motors use the inertia of a body to drive it by means of a friction contact in a series of small steps. These motors can operate in ``stick-slip'' or ``slip-slip'' mode, with the fundamental frequency of the driving signal ranging from several Hertz to more than 100 kHz. To predict the motor characteristics, a Coulomb friction model is sufficient in many cases, but numerical simulation requires microscopic time steps. This contribution proposes a much faster simulation technique using one evaluation per period of the excitation signal. The proposed technique produces results very close to those of timestep simulation for ultrasonics inertia motors and allows direct determination of the steady-state velocity of an inertia motor from the motion profile of the driving part. Thus it is a useful simulation technique which can be applied in both analysis and design of inertia motors, especially for parameter studies and optimisation.}}, author = {{Hunstig, Matthias and Hemsel, Tobias and Sextro, Walter}}, booktitle = {{Ultrasonics Symposium (IUS), 2012 IEEE International}}, issn = {{1948-5719}}, keywords = {{friction, ultrasonic motors, Coulomb friction model, efficient simulation technique, friction contact, high-frequency piezoelectric inertia motor, motor characteristics prediction, numerical simulation, slip-slip mode, stick-slip mode, time-step simulation, ultrasonic inertia motor, Acceleration, Acoustics, Actuators, Computational modeling, Friction, Numerical models, Steady-state}}, pages = {{277--280}}, title = {{{An efficient simulation technique for high-frequency piezoelectric inertia motors}}}, doi = {{10.1109/ULTSYM.2012.0068}}, year = {{2012}}, } @article{4114, abstract = {{Two methods to create biomimetic anti-reflection nanostructures in ordinary glass microscope object slides are presented. One technique is based on a nanosphere lithography process combined with physical vapour deposition of nickel and reactive ion etching (RIE). The other uses plasma induced dewetting of a smooth nickel surface. The amount of reflected light was measured and a method to simulate the reflectivity from an atomic force microscopy (AFM) topography scan of the glass surface is presented. The reflectivity for visible light at normal incidence was reduced to 20-50 % of the original value with both methods and the simulation gives results in good agreement to the measurement.}}, author = {{Achtelik, Jörn and Kemper, Ricarda M. and Sievers, Werner and Lindner, Jörg}}, issn = {{1946-4274}}, journal = {{MRS Proceedings}}, location = {{Boston (USA)}}, publisher = {{Cambridge University Press (CUP)}}, title = {{{Self-Organized Nanostructure Formation for Anti-Reflection Glass Surfaces}}}, doi = {{10.1557/opl.2012.491}}, volume = {{1389}}, year = {{2012}}, } @article{16696, author = {{Zanzottera, A. and Mingotti, G. and Castelli, R. and Dellnitz, M.}}, issn = {{1007-5704}}, journal = {{Communications in Nonlinear Science and Numerical Simulation}}, pages = {{832--843}}, title = {{{Intersecting invariant manifolds in spatial restricted three-body problems: Design and optimization of Earth-to-halo transfers in the Sun–Earth–Moon scenario}}}, doi = {{10.1016/j.cnsns.2011.06.032}}, year = {{2012}}, } @misc{10650, author = {{Dridger, Denis}}, publisher = {{Paderborn University}}, title = {{{Design and Implementation of a Nanophotonics Simulation Personality for the Convey HC-1 Hybrid Core Computer}}}, year = {{2012}}, } @inproceedings{12001, author = {{Eckhoff, David and Sommer, Christoph and Dressler, Falko}}, booktitle = {{2012 IEEE 75th Vehicular Technology Conference (VTC Spring)}}, isbn = {{9781467309905}}, title = {{{On the Necessity of Accurate IEEE 802.11P Models for IVC Protocol Simulation}}}, doi = {{10.1109/vetecs.2012.6240064}}, year = {{2012}}, } @article{12023, author = {{Joerer, Stefan and Sommer, Christoph and Dressler, Falko}}, issn = {{0163-6804}}, journal = {{IEEE Communications Magazine}}, pages = {{82--88}}, title = {{{Toward reproducibility and comparability of IVC simulation studies: a literature survey}}}, doi = {{10.1109/mcom.2012.6316780}}, year = {{2012}}, } @inproceedings{15985, author = {{Reuter, Corin and Frantz, Meike and Lauter, Christian and Block, Holger and Tröster, Thomas}}, location = {{Turin, Italy}}, title = {{{Simulation and testing of hybrid structures consisting of press-hardened steel and CFRP}}}, year = {{2012}}, } @article{16238, author = {{Hankeln, Frederik and Mahnken, Rolf}}, issn = {{1617-7061}}, journal = {{PAMM}}, pages = {{289--290}}, title = {{{Carbon Fibre Prepregs: Simulation of a Thermo-Mechanical-Chemical Coupled Problem}}}, doi = {{10.1002/pamm.201210134}}, year = {{2012}}, } @inproceedings{16408, abstract = {{We present a parallel rendering system for heterogeneous PC clusters to visualize massive models. One single, powerful visualization node is supported by a group of backend nodes with weak graphics performance. While the visualization node renders the visible objects, the backend nodes asynchronously perform visibility tests and supply the front end with visible scene objects. The visualization node stores only currently visible objects in its memory, while the scene is distributed among the backend nodes’ memory without redundancy. To efficiently compute the occlusion tests in spite of that each backend node stores only a fraction of the original geometry, we complete the scene by adding highly simplified versions of the objects stored on other nodes. We test our system with 15 backend nodes. It is able to render a ≈ 350,M polygons (≈ 8.5,GiB) large aircraft model with 20, to 30,fps and thus allows a walk-through in real-time. }}, author = {{Suess, Tim and Koch, Clemens and Jähn, Claudius and Fischer, Matthias and Meyer auf der Heide, Friedhelm}}, booktitle = {{Advances in Visual Computing}}, isbn = {{9783642331787}}, issn = {{0302-9743}}, pages = {{502--512}}, title = {{{Asynchronous Occlusion Culling on Heterogeneous PC Clusters for Distributed 3D Scenes}}}, doi = {{10.1007/978-3-642-33179-4_48}}, volume = {{7431}}, year = {{2012}}, } @phdthesis{14002, author = {{Rautenberg, Jens}}, keywords = {{akustische Wellenleiter, Kunststoffe, Materialdatenbestimmung, Transmissionsmessung}}, publisher = {{Elektrotechnik}}, title = {{{Ein wellenleiterbasiertes Verfahren zur Bestimmung von Materialdaten für die realitätsnahe Simulation von Schallausbreitungsphänomenen am Beispiel stark absorbierender Kunststoffe}}}, year = {{2012}}, } @article{14003, abstract = {{Das Spektrum akustischer Wellenleiter zur Flüssig-keitscharakterisierung reicht von der Seismologie und Geophysik mit Wellenleiterdimensionen von einigen km über die zerstörungsfreie Prüfung bis hin zur Prozessmesstechnik mit Sensordimensio-nen von wenigen mm. In diesem Beitrag wird ein phänomenologischer Weg zur Klassifizierung der Wellenleiter entwickelt, wobei stets die Oberflä-chenauslenkungen an der Wellenleitergrenze und die Anzahl der an der Wellenausbreitung beteiligten Moden Berücksichtigung finden. Im weiteren Verlauf werden Möglichkeiten zur Modellierung, Simulation und Messung multimodaler Wellenausbreitung im akustischen Wellenleiter gezeigt.}}, author = {{Rautenberg, Jens and Bause, Fabian and Henning, Bernd}}, journal = {{Technisches Messen}}, number = {{3}}, pages = {{135--142}}, title = {{{Geführte akustische Wellen zur Flüssigkeitscharakterisierung}}}, volume = {{79}}, year = {{2012}}, }