@inproceedings{22145, abstract = {{results clearly demonstrate the great potential of additive}}, author = {{Joy, T.D. and Brüggemann, J.P. and Kullmer, G.}}, booktitle = {{Procedia Structural Integrity}}, pages = {{in press}}, title = {{{Crack Growth Simulation with Adapcrack3D in 3D Structures under the influence of Temperature}}}, year = {{2018}}, } @article{22667, author = {{Hajiraissi, Roozbeh and Hanke, Marcel and Yang, Yu and Duderija, Belma and Gonzalez Orive, Alejandro and Grundmeier, Guido and Keller, Adrian}}, issn = {{0743-7463}}, journal = {{Langmuir}}, pages = {{3517--3524}}, title = {{{Adsorption and Fibrillization of Islet Amyloid Polypeptide at Self-Assembled Monolayers Studied by QCM-D, AFM, and PM-IRRAS}}}, doi = {{10.1021/acs.langmuir.7b03626}}, volume = {{34}}, year = {{2018}}, } @inproceedings{22756, author = {{Joppen, Robert and von Enzberg, Sebastian and Kühn, Arno and Dumitrescu, Roman}}, booktitle = {{CIRP ICME, Neapel, 18. - 20. Jul. 2018}}, location = {{Neapel}}, title = {{{Data Map - Method for the Specification of Data Flows}}}, year = {{2018}}, } @inproceedings{22757, author = {{Joppen, Robert and Kühn, Arno and Dumitrescu, Roman and Hupach, Dominik}}, booktitle = {{CIRP ICME, Neapel, 18. - 20. Jul. 2018}}, location = {{Neapel}}, title = {{{ Method for Collecting Data in the Assesment of Investments}}}, year = {{2018}}, } @inproceedings{22758, author = {{Albers, Alexander and Tekaat, Julian and Kühn, Arno and Dumitrescu, Roman}}, booktitle = {{R&D Management Conference 2018, 30. Jun. - 4. Jul. 2018}}, title = {{{Requirements Profiles as a Basis for Ideation in Product Generation Planning}}}, year = {{2018}}, } @inproceedings{22760, author = {{Falkowski, Tommy and Jürgenhake, Christoph and Anacker, Harald and Dumitrescu, Roman}}, booktitle = {{SysInt Conference, 19. - 20. Jun. 2018}}, title = {{{Feature model for the specification of industrial indoor location-based services (I²LBS)}}}, year = {{2018}}, } @inproceedings{22777, author = {{Bansmann, Michael and Fechtelpeter, Christian and Anacker, Harald and Dumitrescu, Roman}}, booktitle = {{XXIX ISPIM Innovation Conference 2018, 17. - 20. Jun. 2018}}, title = {{{Transfering Technology induced scenarios of digitized work}}}, year = {{2018}}, } @inproceedings{22779, author = {{Mittag, Tobias and Rabe, Martin and Gradert, Till and Kühn, Arno and Dumitrescu, Roman}}, booktitle = {{CIRP IPS², Linköping, 29. - 31. Mai 2018}}, title = {{{Building blocks for planning and implementation of smart services based on existing products}}}, year = {{2018}}, } @article{22836, author = {{Meinderink, D. and Orive, A. G. and Grundmeier, Guido}}, issn = {{0142-2421}}, journal = {{Surface and Interface Analysis}}, pages = {{1224--1229}}, title = {{{Electrodeposition of poly(acrylic acid) on stainless steel with enhanced adhesion properties}}}, doi = {{10.1002/sia.6440}}, year = {{2018}}, } @inproceedings{21999, abstract = {{In this paper, a novel approach towards risk classification of requirements of additively manufactured (AM) products is presented. The classification of an individual requirement is based on two aspects: a) influence factors implying dynamics of its specification and b) network indices quantifying the degree of cross-linkage with other requirements. Both aspects can indicate requirement changes. Influences on a requirement are assessed by a priority index based on criteria ‘uncertainty’, ‘dynamics’ and ‘relevance for product development’. Effects from other requirements are captured by network theoretical indices such as active and passive sum. In the end, requirements are classified accord-ing to their criticality. By this approach, requirements can be identified which might strongly affect the product development process of AM products.}}, author = {{Gräßler, I. and Oleff, C. and Scholle, P.}}, booktitle = {{Design for X - Beiträge zum 29. DfX-Symposium}}, pages = {{333--344}}, title = {{{Methode zur Bewertung von Anforderungsänderungen additiv gefertigter Produkte}}}, doi = {{https://www.researchgate.net/publication/331742431_Methode_zur_Bewertung_von_Anforderungsanderungen_additiv_gefertigter_Produkte}}, volume = {{29}}, year = {{2018}}, } @inproceedings{22, abstract = {{This paper describes a data structure and a heuristic to plan and map arbitrary resources in complex combinations while applying time dependent constraints. The approach is used in the planning based workload manager OpenCCS at the Paderborn Center for Parallel Computing (PC\(^2\)) to operate heterogeneous clusters with up to 10000 cores. We also show performance results derived from four years of operation.}}, author = {{Keller, Axel}}, booktitle = {{Proc. Workshop on Job Scheduling Strategies for Parallel Processing (JSSPP)}}, editor = {{Klusáček, D. and Cirne, W. and Desai, N.}}, isbn = {{978-3-319-77398-8}}, keywords = {{Scheduling Planning Mapping Workload management}}, location = {{Orlando, FL, USA}}, pages = {{132--151}}, publisher = {{Springer}}, title = {{{A Data Structure for Planning Based Workload Management of Heterogeneous HPC Systems}}}, doi = {{10.1007/978-3-319-77398-8_8}}, volume = {{10773}}, year = {{2018}}, } @inproceedings{5822, author = {{Gaspers, Daniel and Knorr, Christoph and Nickchen, Tobias and Nickchen, Daniel and Mertsching, Barbel and Mohamed, Mahmoud A.}}, booktitle = {{2018 IEEE International Symposium on Safety, Security, and Rescue Robotics (SSRR)}}, isbn = {{9781538655726}}, publisher = {{IEEE}}, title = {{{Real-time Graph-Based 3D Reconstruction of Sparse Feature Environments for Mobile Robot Applications}}}, doi = {{10.1109/ssrr.2018.8468658}}, year = {{2018}}, } @inbook{5977, author = {{Kückmann, Marie-Ann and Kremer, H.-Hugo}}, booktitle = {{Vielfalt des Lernens im Rahmen berufsbezogener Standards}}, editor = {{Buschfeld, D. and Cleef, M.}}, isbn = {{9783830937739}}, pages = {{177--188}}, publisher = {{Waxmann}}, title = {{{Multiprofessionelle Teams zur inklusiven Bildungsarbeit. Empirische Explorationen, theoretisch-konzeptionelle Annäherungen und praktische Gestaltung}}}, year = {{2018}}, } @inbook{6238, author = {{Kremer, H.-Hugo and Emmighausen, Laura and Mauer, Eileen}}, booktitle = {{Heterogenität als Chance. Bilanz und Perspektiven des Qualitätspakt Lehre-Projekts an der Universität Paderborn}}, editor = {{Riegraf, B. and Meister, D. M. and Reinhold, P. and Schaper, N. and Temps, T. T.}}, isbn = {{9783945437049}}, pages = {{126--129}}, title = {{{Studiengangsmanagement an der Fakultät für Wirtschaftswissenschaften. Organisation, Arbeitsgebiete und Herausforderungen}}}, year = {{2018}}, } @inproceedings{4411, abstract = {{While a lot of research in distributed computing has covered solutions for self-stabilizing computing and topologies, there is far less work on self-stabilization for distributed data structures. Considering crashing peers in peer-to-peer networks, it should not be taken for granted that a distributed data structure remains intact. In this work, we present a self-stabilizing protocol for a distributed data structure called the hashed Patricia Trie (Kniesburges and Scheideler WALCOM'11) that enables efficient prefix search on a set of keys. The data structure has a wide area of applications including string matching problems while offering low overhead and efficient operations when embedded on top of a distributed hash table. Especially, longest prefix matching for $x$ can be done in $\mathcal{O}(\log |x|)$ hash table read accesses. We show how to maintain the structure in a self-stabilizing way. Our protocol assures low overhead in a legal state and a total (asymptotically optimal) memory demand of $\Theta(d)$ bits, where $d$ is the number of bits needed for storing all keys.}}, author = {{Knollmann, Till and Scheideler, Christian}}, booktitle = {{Proceedings of the 20th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS)}}, editor = {{Izumi, Taisuke and Kuznetsov, Petr}}, keywords = {{Self-Stabilizing, Prefix Search, Distributed Data Structure}}, location = {{Tokyo}}, publisher = {{Springer, Cham}}, title = {{{A Self-Stabilizing Hashed Patricia Trie}}}, doi = {{10.1007/978-3-030-03232-6_1}}, volume = {{11201}}, year = {{2018}}, } @inproceedings{4447, author = {{Riedl, Thomas and Bürger, Julius and Kunnathully, Vinay and Wiegand, Marie and Duschik, K. and Ramermann, D. and Ennen, I. and Hertle, Y. and Schaper, Mirko and Hellweg, T. and Hütten, A. and Lindner, Jörg}}, location = {{Dortmund (Germany)}}, title = {{{Nanostructure Research using Transmission Electron Microscopy at the new OWL Analytic Centre}}}, year = {{2018}}, } @inproceedings{4579, abstract = {{Semi-guided waves confined in dielectric slab waveguides are being considered for oblique angles of propagation. If the waves encounter a linear discontinuity of (mostly) arbitrary shape and extension, a variant of Snell's law applies, separately for each pair of incoming and outgoing modes. Depending on the effective indices involved, and on the angle of incidence, power transfer to specific outgoing waves can be allowed or forbidden. In particular, critical angles of incidence can be identified, beyond which any power transfer to non-guided waves is forbidden, i.e. all radiative losses are suppressed. In that case the input power is carried away from the discontinuity exclusively by reflected semi-guided waves in the input slab, or by semi-guided waves that are transmitted into other outgoing slab waveguides. Vectorial equations on a 2-D cross sectional domain apply. These are formally identical to the equations that govern the eigenmodes of 3-D channel waveguides. Here, however, these need to be solved not as an eigenvalue problem, but as an inhomogeneous problem with a right-hand-side that is given by the incoming semi-guided wave, and subject to transparent boundary conditions. The equations resemble a standard 2-D Helmholtz problem, with an effective permittivity in place of the actual relative permittivity. Depending on the properties of the incoming wave, including the angle of incidence, this effective permittivity can become locally negative, causing the suppression of propagating outgoing waves. A series of high-contrast example configurations are discussed, where these effects lead to - in some respects - quite surprising transmission characteristics.}}, author = {{Hammer, Manfred and Ebers, Lena and Hildebrandt, Andre and Alhaddad, Samer and Förstner, Jens}}, booktitle = {{2018 IEEE 17th International Conference on Mathematical Methods in Electromagnetic Theory (MMET)}}, isbn = {{9781538654385}}, keywords = {{tet_topic_waveguides}}, publisher = {{IEEE}}, title = {{{Oblique Semi-Guided Waves: 2-D Integrated Photonics with Negative Effective Permittivity}}}, doi = {{10.1109/mmet.2018.8460455}}, year = {{2018}}, } @article{4831, abstract = {{Polarization of light is essential for some living organisms and many optical applications. Here, an orientation dependent polarization conversion effect is reported for light reflected from diamond‐structure‐based photonic crystals (D‐structure) inside the scales of a beetle, the weevil Entimus imperialis. When linearly polarized light propagates along its 〈100〉 directions, the D‐structure behaves analogous to a half‐wave plate in reflection but based on a different mechanism. The D‐structure rotates the polarization direction of linearly polarized light, and reflects circularly polarized light of both handednesses without changing it. This polarization effect is different from circular dichroism occurring in chiral biological photonic structures discovered before. The structural origin of this effect is symmetry breaking inside D‐structure's unit cell. This finding demonstrates that natural photonic structures can exploit multiple functionalities inherent to the design principles of their structural organization. Aiming at transferring the inherent polarization effect of the biological D‐structure to technically realizable materials, three simplified biomimetic structural models are derived and it is theoretically demonstrated that they retain the effect. Out of these structures, functioning woodpile structure prototypes are fabricated.}}, author = {{Wu, Xia and Rodríguez-Gallegos, Fernando L. and Heep, Marie-Christin and Schwind, Bertram and Li, Guixin and Fabritius, Helge-Otto and von Freymann, Georg and Förstner, Jens}}, issn = {{2195-1071}}, journal = {{Advanced Optical Materials}}, keywords = {{tet_topic_phc, tet_topic_bio}}, number = {{24}}, pages = {{1800635}}, publisher = {{Wiley}}, title = {{{Polarization Conversion Effect in Biological and Synthetic Photonic Diamond Structures}}}, doi = {{10.1002/adom.201800635}}, volume = {{6}}, year = {{2018}}, } @article{7008, author = {{Evers, E. and Belykh, V. V. and Kopteva, N. E. and Yugova, I. A. and Greilich, A. and Yakovlev, D. R. and Reuter, Dirk and Wieck, A. D. and Bayer, M.}}, issn = {{2469-9950}}, journal = {{Physical Review B}}, number = {{7}}, publisher = {{American Physical Society (APS)}}, title = {{{Decay and revival of electron spin polarization in an ensemble of (In,Ga)As quantum dots}}}, doi = {{10.1103/physrevb.98.075309}}, volume = {{98}}, year = {{2018}}, } @article{7009, author = {{Schuster, J and Kim, T Y and Batke, E and Reuter, Dirk and Wieck, A D}}, issn = {{0268-1242}}, journal = {{Semiconductor Science and Technology}}, number = {{9}}, publisher = {{IOP Publishing}}, title = {{{Interlayer charge transfer in n-modulation doped Al1−x Ga x As–GaAs single heterostructures}}}, doi = {{10.1088/1361-6641/aad83d}}, volume = {{33}}, year = {{2018}}, }