TY - JOUR A1 - Aslan, Erman A1 - Nahavandi, A. A1 - Taymaz, I. A1 - Benim, Ali Cemal T1 - A note on modelling non-rectangular boundaries by the Lattice Boltzmann Method JF - Progress in Computational Fluid Dynamics, An International Journal Y1 - 2012 U6 - https://doi.org/10.1504/pcfd.2012.049815 VL - 12 IS - 6 SP - 433 EP - 438 PB - inderscience ER - TY - CHAP A1 - Ruess, Martin A1 - Varduhn, Vasco A1 - Rank, Ernst A1 - Yosibash, Zohar ED - Bader, Michael T1 - A Parallel High-Order Fictitious Domain Approach for Biomechanical Applications T2 - 11th International Symposium on Parallel and Distributed Computing (ISPDC), 2012 : 25 - 29 June 2012, Munich, Germany ; proceedings Y1 - 2012 UR - http://ieeexplore.ieee.org/document/6341523/ SN - 978-1-4673-2599-8 U6 - https://doi.org/10.1109/ISPDC.2012.45 SP - 279 EP - 285 PB - IEEE CY - Piscataway ER - TY - JOUR A1 - Winkler, Michael A1 - Becker, Klaus A1 - Doolan, Con A1 - Kameier, Frank A1 - Paschereit, Christian Oliver T1 - Aeroacoustic Effects of a Cylinder-Plate Configuration JF - AIAA Journal Y1 - 2012 U6 - https://doi.org/10.2514/1.j051578 VL - 50 IS - 7 SP - 1614 EP - 1620 PB - ARC ER - TY - JOUR A1 - Yang, Z. A1 - Ruess, Martin A1 - Kollmannsberger, Stefan A1 - Düster, Alexander A1 - Rank, Ernst T1 - An efficient integration technique for the voxel-based finite cell method JF - International Journal for Numerical Methods in Engineering Y1 - 2012 U6 - https://doi.org/10.1002/nme.4269 SN - 1097-0207 VL - 91 IS - 5 SP - 457 EP - 471 PB - Wiley ER - TY - JOUR A1 - Peter, Maximilian A1 - Fichtl, Matthias B. A1 - Ruland, Holger A1 - Kaluza, Stefan A1 - Muhler, Martin A1 - Hinrichsen, Olaf T1 - Detailed kinetic modeling of methanol synthesis over a ternary copper catalyst JF - Chemical Engineering Journal Y1 - 2012 U6 - https://doi.org/10.1016/j.cej.2012.06.066 SN - 0009-2509 VL - 203 SP - 480 EP - 491 PB - Elsevier ER - TY - JOUR A1 - Stuhlsatz, André A1 - Lippel, Jens A1 - Zielke, Thomas T1 - Feature extraction with deep neural networks by a generalized discriminant analysis JF - IEEE transactions on neural networks and learning systems N2 - We present an approach to feature extraction that is a generalization of the classical linear discriminant analysis (LDA) on the basis of deep neural networks (DNNs). As for LDA, discriminative features generated from independent Gaussian class conditionals are assumed. This modeling has the advantages that the intrinsic dimensionality of the feature space is bounded by the number of classes and that the optimal discriminant function is linear. Unfortunately, linear transformations are insufficient to extract optimal discriminative features from arbitrarily distributed raw measurements. The generalized discriminant analysis (GerDA) proposed in this paper uses nonlinear transformations that are learnt by DNNs in a semisupervised fashion. We show that the feature extraction based on our approach displays excellent performance on real-world recognition and detection tasks, such as handwritten digit recognition and face detection. In a series of experiments, we evaluate GerDA features with respect to dimensionality reduction, visualization, classification, and detection. Moreover, we show that GerDA DNNs can preprocess truly high-dimensional input data to low-dimensional representations that facilitate accurate predictions even if simple linear predictors or measures of similarity are used. Y1 - 2012 U6 - https://doi.org/10.1109/tnnls.2012.2183645 VL - 23 IS - 4 SP - 596 EP - 608 PB - IEEE ER - TY - JOUR A1 - Carapezza, M. L. A1 - Barberi, F. A1 - Ranaldi, M. A1 - Ricci, T. A1 - Tarchini, L. A1 - Barrancos, J. A1 - Fischer, C. A1 - Granieri, D. A1 - Lucchetti, C. A1 - Melian, G. A1 - Perez, N. A1 - Tuccimei, P. A1 - Vogel, A. A1 - Weber, Konradin T1 - Hazardous gas emissions from the flanks of the quiescent Colli Albani volcano (Rome, Italy) JF - Applied Geochemistry Y1 - 2012 UR - https://doi.org/10.1016/j.apgeochem.2012.02.012 U6 - https://doi.org/10.1016/j.apgeochem.2012.02.012 VL - 27 IS - 9 SP - 1767 EP - 1782 PB - Elsevier ER - TY - JOUR A1 - Fleiger, P. M. A1 - Reichardt, Roland A1 - Treiber, K. T1 - High-Precision Power Measurement for the Grindability Test According to Zeisel JF - Chemical Engineering & Technology Y1 - 2012 U6 - https://doi.org/10.1002/ceat.201200118 VL - 35 IS - 11 SP - 1941 EP - 1948 PB - Wiley ER - TY - JOUR A1 - Maqableh, A. M. A1 - Ammourah, S. A. A1 - Khadrawi, A. F. A1 - Al-Nimr, M. A. A1 - Benim, Ali Cemal T1 - Hydrodynamics behaviour of a fluid flow in micro-venturi JF - Candian Journal of Physics Y1 - 2012 U6 - https://doi.org/10.1139/p11-145 VL - 90 IS - 1 SP - 83 EP - 89 PB - Canadian Science Publishing ER - TY - JOUR A1 - Glembin, Jens A1 - Adam, Mario A1 - Deidert, Jörn A1 - Jagnow, Kati A1 - Rockendorf, Gunter A1 - Wirth, Hans Peter T1 - Simulation and Evaluation of Different Boiler Implementations and Configurations in Solar Thermal Combi Systems JF - Energy Procedia KW - Kessel und große Solarthermieanlagen Y1 - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27350 N1 - Acknowledgements The work presented in this paper has been realized within the project “Integration von Heizkesseln in Wärmeverbundsysteme mit großen Solaranlagen“ (Integration of heating boilers in thermal energy distribution circuits with large solar systems), which has been funded by the German Ministry for Environment, Nature Conservation and Nu-clear Safety based on a decision of the German Federal Parliament (FKZ 0325958Z). Within the project, the authors developed a new boiler model for dynamic simulations and validated it against test rig and field data. Field measurements and additional system simulations have been used to analyze and evaluate the interaction of the solar thermal system and the boiler. The authors are grateful for the project support. The content of this publication is in the responsibility of the authors. VL - 30 SP - 601 EP - 610 PB - Elsevier ER - TY - JOUR A1 - Schillinger, Dominik A1 - Ruess, Martin A1 - Zander, Nils A1 - Bazilevs, Yuri A1 - Düster, Alexander A1 - Rank, Ernst T1 - Small and large deformation analysis with the p- and B-spline versions of the Finite Cell Method JF - Computational Mechanics Y1 - 2012 U6 - https://doi.org/10.1007/S00466-012-0684-Z SN - 1432-0924 VL - 50 IS - 4 SP - 445 EP - 478 PB - Springer ER - TY - JOUR A1 - Gaida, Daniel A1 - Wolf, Christian A1 - Meyer, C. A1 - Stuhlsatz, André A1 - Lippel, Jens A1 - Bäck, T. A1 - Bongards, M. A1 - McLoone, S. T1 - State estimation for anaerobic digesters using the ADM1 JF - Water science and technology N2 - The optimization of full-scale biogas plant operation is of great importance to make biomass a competitive source of renewable energy. The implementation of innovative control and optimization algorithms, such as Nonlinear Model Predictive Control, requires an online estimation of operating states of biogas plants. This state estimation allows for optimal control and operating decisions according to the actual state of a plant. In this paper such a state estimator is developed using a calibrated simulation model of a full-scale biogas plant, which is based on the Anaerobic Digestion Model No.1. The use of advanced pattern recognition methods shows that model states can be predicted from basic online measurements such as biogas production, CH4 and CO2 content in the biogas, pH value and substrate feed volume of known substrates. The machine learning methods used are trained and evaluated using synthetic data created with the biogas plant model simulating over a wide range of possible plant operating regions. Results show that the operating state vector of the modelled anaerobic digestion process can be predicted with an overall accuracy of about 90%. This facilitates the application of state-based optimization and control algorithms on full-scale biogas plants and therefore fosters the production of eco-friendly energy from biomass. Y1 - 2012 U6 - https://doi.org/10.2166/wst.2012.286 VL - 66 IS - 5 SP - 1088 EP - 1095 PB - IWA Publishing ER - TY - JOUR A1 - Boz, İsmail A1 - Kaluza, Stefan A1 - Boroğlu, Mehtap Şafak A1 - Muhler, Martin T1 - Synthesis of high surface area ZnO powder by continuous precipitation JF - Materials Research Bulletin Y1 - 2012 U6 - https://doi.org/10.1016/j.materresbull.2012.02.005 SN - 1873-4227 VL - 47 IS - 5 SP - 1185 EP - 1190 PB - Elsevier ER - TY - JOUR A1 - Ruess, Martin A1 - Tal, David A1 - Trabelsi, Nir A1 - Yosibash, Zohar A1 - Rank, Ernst T1 - The finite cell method for bone simulations: verification and validation JF - Biomechanics and modeling in mechanobiology Y1 - 2012 UR - http://www.ncbi.nlm.nih.gov/pubmed/21695444 U6 - https://doi.org/10.1007/s10237-011-0322-2 SN - 1617-7940 VL - 11 IS - 3-4 SP - 425 EP - 437 PB - Springer ER - TY - JOUR A1 - Zander, Nils A1 - Kollmannsberger, Stefan A1 - Ruess, Martin A1 - Yosibash, Z. A1 - Rank, Ernst T1 - The Finite Cell Method for linear thermoelasticity JF - Computers & Mathematics with Applications Y1 - 2012 U6 - https://doi.org/10.1016/j.camwa.2012.09.002 SN - 0898-1221 N1 - Open Archiv VL - 64 IS - 11 SP - 3527 EP - 3541 PB - Elsevier ER -