@misc{701, author = {{Götte, Thorsten}}, publisher = {{Universität Paderborn}}, title = {{{Self-Stabilizing Spanners for Tree Metrics}}}, year = {{2017}}, } @inbook{3950, abstract = {{In the last decade, zinc blende structure III–V semiconductors have been increasingly utilized for the realization of high‐performance optoelectronic applications because of their tunable bandgaps, high carrier mobility and the absence of piezoelectric fields. However, the integration of III–V devices on the Si platform commonly used for CMOS electronic circuits still poses a challenge, due to the large densities of mismatch‐related defects in heteroepitaxial III–V layers grown on planar Si substrates. A promising method to obtain thin III–V layers of high crystalline quality is the growth on nanopatterned substrates. In this approach, defects can be effectively eliminated by elastic lattice relaxation in three dimensions or confined close to the substrate interface by using aspect‐ratio trapping masks. As a result, an etch pit density as low as 3.3 × 10^5 cm^−2 and a flat surface of submicron GaAs layers have been accomplished by growth onto a SiO2 nanohole film patterned Si(001) substrate, where the threading defects are trapped at the SiO2 mask sidewalls. An open issue that remains to be resolved is to gain a better understanding of the interplay between mask shape, growth conditions and formation of coalescence defects during mask overgrowth in order to achieve thin device quality III–V layers}}, author = {{Riedl, Thomas and Lindner, Jörg}}, booktitle = {{Nanoscaled Films and Layers}}, editor = {{Nanai, L.}}, isbn = {{9789535131434}}, publisher = {{InTech}}, title = {{{Heteroepitaxy of III–V Zinc Blende Semiconductors on Nanopatterned Substrates}}}, doi = {{10.5772/67572}}, year = {{2017}}, } @inbook{5028, author = {{Becker, Jörg and Monhof, Markus and Beverungen, Daniel and Bräuer, Sebastian and Klör, Benjamin and Plenter, Florian}}, booktitle = {{Dienstleistungen als Erfolgsfaktor für Elektromobilität. Ergebnisse aus dem Förderschwerpunkt “Dienstleistungsinnovationen für Elektromobilität”}}, editor = {{Ganz, Walter and Kampker, Achim and Satzger, Gerhard}}, isbn = {{978-3-8396-1212-5}}, pages = {{24----29}}, title = {{{End-of-Life Solutions für eCar-Batterien --- Entwicklung hybrider Leistungsbündel und Informationssysteme zur Entscheidungsunterstützung (EOL-IS)}}}, year = {{2017}}, } @inproceedings{55, abstract = {{We introduce the mobile server problem, inspired by current trends to move computational tasks from cloud structures to multiple devices close to the end user. An example for this are embedded systems in autonomous cars that communicate in order to coordinate their actions. Our model is a variant of the classical Page Migration Problem. Moreformally, we consider a mobile server holding a data page.The server can move in the Euclidean space (of arbitrary dimension). In every round, requests for data items from the page pop up at arbitrary points in the space. The requests are served, each at a cost of the distance from the requesting point and the server, and the mobile server may move, at a cost D times the distance traveled for some constant D . We assume a maximum distance m the server is allowed to move per round. We show that no online algorithm can achieve a competitive ratio independent of the length of the input sequence in this setting. Hence we augment the maximum movement distance of the online algorithms to ( 1 + δ) times the maximum distance of the offline solution. We provide a deterministic algorithm which is simple to describe and works for multiple variants of our problem. The algorithm achieves almost tight competitive ratios independent of the length of the input sequence.}}, author = {{Feldkord, Björn and Meyer auf der Heide, Friedhelm}}, booktitle = {{Proceedings of the 29th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA)}}, pages = {{313--319}}, title = {{{The Mobile Server Problem}}}, doi = {{10.1145/3087556.3087575}}, year = {{2017}}, } @misc{696, author = {{Wachowiak, Lennart}}, publisher = {{Universität Paderborn}}, title = {{{Das Mobile Server Problem in Netzwerken}}}, year = {{2017}}, } @misc{697, author = {{Burkhardt, Michel}}, publisher = {{Universität Paderborn}}, title = {{{Untersuchungen zum Cone-Hashing}}}, year = {{2017}}, } @article{17158, author = {{Beverungen, Daniel and Müller, Oliver and Matzner, Martin and Mendling, Jan and vom Brocke, Jan}}, issn = {{1019-6781}}, journal = {{Electronic Markets}}, pages = {{7--18}}, title = {{{Conceptualizing smart service systems}}}, doi = {{10.1007/s12525-017-0270-5}}, year = {{2017}}, } @misc{1048, author = {{Schenk, Andreas}}, publisher = {{Universität Paderborn}}, title = {{{Monotone Suchbarkeit in mehrdimensionalen verteilten Datenstrukturen}}}, year = {{2017}}, } @misc{1049, author = {{Beckendorfer, Björn}}, publisher = {{Universität Paderborn}}, title = {{{Visualisierung zu Algorithmen verteilter Netzwerksysteme}}}, year = {{2017}}, } @inproceedings{105, abstract = {{We initiate the study of network monitoring algorithms in a class of hybrid networks in which the nodes are connected by an external network and an internal network (as a short form for externally and internally controlled network). While the external network lies outside of the control of the nodes (or in our case, the monitoring protocol running in them) and might be exposed to continuous changes, the internal network is fully under the control of the nodes. As an example, consider a group of users with mobile devices having access to the cell phone infrastructure. While the network formed by the WiFi connections of the devices is an external network (as its structure is not necessarily under the control of the monitoring protocol), the connections between the devices via the cell phone infrastructure represent an internal network (as it can be controlled by the monitoring protocol). Our goal is to continuously monitor properties of the external network with the help of the internal network. We present scalable distributed algorithms that efficiently monitor the number of edges, the average node degree, the clustering coefficient, the bipartiteness, and the weight of a minimum spanning tree. Their performance bounds demonstrate that monitoring the external network state with the help of an internal network can be done much more efficiently than just using the external network, as is usually done in the literature.}}, author = {{Gmyr, Robert and Hinnenthal, Kristian and Scheideler, Christian and Sohler, Christian}}, booktitle = {{Proceedings of the 44th International Colloquium on Automata, Languages, and Programming (ICALP)}}, pages = {{137:1----137:15}}, title = {{{Distributed Monitoring of Network Properties: The Power of Hybrid Networks}}}, doi = {{10.4230/LIPIcs.ICALP.2017.137}}, year = {{2017}}, } @inproceedings{10789, author = {{Trier, Matthias and Fung, Magdalene and Hansen, Abigail}}, booktitle = {{25th European Conference on Information Systems, {ECIS} 2017, Guimar{\~{a}}es, Portugal, June 5-10, 2017}}, pages = {{104}}, title = {{{Uncertainties as Barriers for Knowledge Sharing with Enterprise Social Media}}}, year = {{2017}}, } @inproceedings{125, abstract = {{Searching for other participants is one of the most important operations in a distributed system.We are interested in topologies in which it is possible to route a packet in a fixed number of hops until it arrives at its destination.Given a constant $d$, this paper introduces a new self-stabilizing protocol for the $q$-ary $d$-dimensional de Bruijn graph ($q = \sqrt[d]{n}$) that is able to route any search request in at most $d$ hops w.h.p., while significantly lowering the node degree compared to the clique: We require nodes to have a degree of $\mathcal O(\sqrt[d]{n})$, which is asymptotically optimal for a fixed diameter $d$.The protocol keeps the expected amount of edge redirections per node in $\mathcal O(\sqrt[d]{n})$, when the number of nodes in the system increases by factor $2^d$.The number of messages that are periodically sent out by nodes is constant.}}, author = {{Feldmann, Michael and Scheideler, Christian}}, booktitle = {{Proceedings of the 19th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS)}}, isbn = {{978-3-319-69083-4}}, pages = {{250--264 }}, publisher = {{Springer, Cham}}, title = {{{A Self-Stabilizing General De Bruijn Graph}}}, doi = {{10.1007/978-3-319-69084-1_17}}, volume = {{10616}}, year = {{2017}}, } @article{15428, author = {{Lehmann, T and Paschen, Linda and Baumeister, Jochen}}, issn = {{2199-1170}}, journal = {{Sports Med Open}}, number = {{1}}, pages = {{32}}, title = {{{Single-Leg Assessment of Postural Stability After Anterior Cruciate Ligament Injury: a Systematic Review and Meta-Analysis.}}}, doi = {{10.1186/s40798-017-0100-5}}, volume = {{3}}, year = {{2017}}, } @article{10155, author = {{Mazzuoccolo, Guiseppe and Steffen, Eckhard}}, journal = {{J. Graph Theory}}, pages = {{363 – 371 }}, title = {{{Nowhere-zero 5-flows on cubic graphs with oddness 4}}}, volume = {{85}}, year = {{2017}}, } @phdthesis{29616, abstract = {{Essentielle Anforderungen an Antriebssysteme für (teil-)elektrisch angetriebene Fahrzeuge sind eine hohe Leistungs- und Drehmomentdichte. Hierbei determinieren insbesondere die zulässigen Temperaturen wichtiger Motorkomponenten das transient sowie dauerhaft erzielbare Leistungspotential. Für die in automobilen Anwendungen häufig eingesetzten permanenterregten Synchronmotoren ist die Temperaturverteilung innerhalb der Wicklung und der Permanentmagnete von besonderem Interesse. Um den thermischen Bauteilschutz zu gewährleisten, werden Motoren in der industriellen Praxis häufig überdimensioniert, was zusätzlichen Gewichts- und Bauraumbedarf sowie höhere Produktionskosten bedingt. Alternativ kann ein Derating eingesetzt werden, welches die zulässige Motorleistung in Abhängigkeit des thermischen Zustands regelt. Dies erlaubt, sowohl die thermischen Kapazitäten des Motors gezielt auszunutzen als auch die Leistungsaufnahme im thermisch stationären Betrieb zu maximieren. Substantielle Voraussetzung hierfür ist die Kenntnis wichtiger Temperaturen zur Laufzeit - eine vollständige messtechnische Erfassung dieser ist allerdings aus Kosten- und Ausfallsicherheitsgründen nicht möglich. Im Zuge dieser Arbeit wurden daher sowohl thermische Netzwerke mit konzentrierten Parametern als auch Beobachteransätze auf Basis des elektrischen Motormodells untersucht. Darauf aufbauend wurde eine virtuelle Sensorfusion mittels Kalman-Filter realisiert. Umfangreiche Kreuz-Validierungen belegen eine hochgenaue, echtzeitfähige Temperaturermittlung mit einer Schätzabweichung von kleiner 5 K. Abschließend wurde ein modellprädiktives Derating-Konzept erarbeitet, welches sowohl die maximale thermische Ausnutzung des Antriebs erlaubt als auch definierte Grenztemperaturen sicher einhält. }}, author = {{Wallscheid, Oliver}}, isbn = {{978-3-8440-5160-5}}, publisher = {{Shaker Verlag}}, title = {{{Ein Beitrag zur thermischen Ausnutzung permanenterregter Synchronmotoren in automobilen Traktionsanwendungen}}}, year = {{2017}}, } @inbook{25243, author = {{Hannebohm, Ronja}}, booktitle = {{Geschlechter-Dramen: literarische und filmische Inszenierungen von 1800 bis heute}}, editor = {{Debisow, Adelina}}, location = {{Paderborn}}, pages = {{85--99}}, publisher = {{Universitätsbibliothek Paderborn}}, title = {{{Geschlechter-Macht-Binarismen relativiert: Margaret Atwoods Männerdarstellungen in "The Handmaid's Tale"}}}, doi = {{10.17619/UNIPB/1-251}}, volume = {{2}}, year = {{2017}}, } @inbook{31768, author = {{Willeke, Stephanie}}, booktitle = {{Ästhetik des Tabuisierten in der Literatur- und Kulturgeschichte}}, editor = {{Süwolto, Leonie }}, pages = {{101--119}}, publisher = {{Open-Access-Publikation der Universitätsbibliothek}}, title = {{{„Nichts mehr stimmt, und alles ist wahr.“ Tabubrüche in Herta Müllers Atemschaukel}}}, year = {{2017}}, } @inbook{31761, author = {{Willeke, Stephanie}}, booktitle = {{Herta Müller-Handbuch}}, editor = {{Eke, Norbert Otto}}, pages = {{214--220}}, publisher = {{Metzler }}, title = {{{Shoah und Gulag}}}, year = {{2017}}, } @inbook{31764, author = {{Willeke, Stephanie}}, booktitle = {{Das Radikale – gesellschafts-politische und formal-ästhetische Aspekte in der Gegenwarts­literatur}}, editor = {{Willeke, Stephanie and Peters, Ludmila and Roth, Carsten}}, pages = {{7--20}}, publisher = {{LIT }}, title = {{{Das Radikale – gesellschafts-politische und formal-ästhetische Aspekte. Eine Einführung}}}, year = {{2017}}, } @inbook{31766, author = {{Willeke, Stephanie}}, booktitle = {{Das Radikale. Gesellschafts-politische und formal-ästhetische Aspekte in der Gegenwartsliterstur}}, editor = {{Willeke, Stephanie and Peters, Ludmila and Roth, Carsten}}, pages = {{147--172}}, publisher = {{LIT }}, title = {{{Konstruierte Wahrheiten. Benjamin Steins Die Leinwand}}}, year = {{2017}}, }