@incollection{Utz2019, author = {Utz, Richard}, title = {Magmatisches Philosophieren : Nietzsches Unterwindung des Sokrates}, series = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, booktitle = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, editor = {Banke, Bernd}, publisher = {Hochschule Reutlingen}, address = {Reutlingen}, isbn = {978-3-9821179-1-1}, doi = {10.34645/opus-2348}, pages = {125 -- 141}, year = {2019}, language = {de} } @incollection{Selke2019, author = {Selke, Stefan}, title = {Digitale Alchemie oder Optimierung? {\"U}berLeben in vernetzten Welten}, series = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, booktitle = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, editor = {Banke, Bernd}, publisher = {Hochschule Reutlingen}, address = {Reutlingen}, isbn = {978-3-9821179-1-1}, doi = {10.34645/opus-2347}, pages = {105 -- 123}, year = {2019}, abstract = {Digitale Selbstvermessungstechnologien wurden in den letzten Jahren zum Sinnbild rationaler und optimierter Lebensf{\"u}hrung. Mit dem digitalen Prosumenten sind jedoch auch zahlreiche Pathologien verbunden. Der Beitrag verortet Lifelogging - digitalisierte Lebensprotokollierung - als auf Algorithmen basierende Form von Alchemie und Surrogat f{\"u}r echte soziale Utopien.}, language = {de} } @inproceedings{ZhouWattenbergSchwalbe2019, author = {Zhou, Wenqi and Wattenberg, Martin and Schwalbe, Ulf}, title = {Design considerations of a single stage LLC battery charger}, series = {PCIM Europe : International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, 7-9 May 2019 : proceedings}, booktitle = {PCIM Europe : International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, 7-9 May 2019 : proceedings}, publisher = {VDE Verlag GmbH}, address = {Berlin ; Offenbach}, pages = {672 -- 678}, year = {2019}, abstract = {Usually battery chargers have two stages and DC charging current is considered to by necessary for a proper charging. To decrease the charger volume, a single stage LLC battery charger is investigated in this paper. PFC stage is eliminated, therefore no bulky capacitor is necessary any more, and battery is charged with a sinusoidal-like charging current. However, previous studies show that such a pulsating charging current has only minimal impact on battery life and efficiency. Design considerations of the resonant tank and optimal transformer design are presented. A 360W single stage LLC converter prototype for e-bike charger achieves a power factor of 0.98, efficiency of 0.93 and power density of 1,8kW/dm³.}, language = {en} } @article{SackmannDalhoffLauxmann2019, author = {Sackmann, Benjamin and Dalhoff, Ernst and Lauxmann, Michael}, title = {Model-based hearing diagnosis based on wideband tympanometry measurements utilizing fuzzy arithmetic}, series = {Hearing research}, volume = {378}, journal = {Hearing research}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0378-5955}, doi = {10.1016/j.heares.2019.02.011}, pages = {126 -- 138}, year = {2019}, abstract = {Today's audiometric methods for the diagnosis of middle ear disease are often based on a comparison of measurements with standard curves that represent the statistical range of normal hearing responses. Because of large inter-individual variances in the middle ear, especially in wideband tympanometry (WBT), specificity and quantitative evaluation are greatly restricted. A new model-based approach could transform today's predominantly qualitative hearing diganostics into a quantitative and tailored, patient-specific diagnosis, by evaluating WBT measurements with the aid of a middle-ear model. For this particular investigation, a finite element model of a human ear was used. It consisted of an acoustic ear canal and a tympanic cavity model, a middle-ear with detailed nonlinear models of the tympanic membrane and annular ligament, and a simplified inner-ear model. This model has made it possible to identify pathologies from measurements, by analyzing the parameters through senstivity studies and parameter clustering. Uncertainties due to the lack of knowledge, subjectivity in numerical implementation and model simplification are taken into account by the application of fuzzy arithmetic. The most confident parameter set can be determined by applying an inverse fuzzy method on the measurement data. The principle and the benefits of this model-based approach are illustrated by the example of a two-mass oscillator, and also by the simulation of the energy absorbance of an ear with malleus fixation, where the parameter changes that are introduced can be determined quantitatively through the system identification.}, language = {en} } @incollection{Schwarz2019, author = {Schwarz, Sybille}, title = {Die W{\"o}rz´sche Heuristik}, series = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, booktitle = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, editor = {Banke, Bernd}, publisher = {Hochschule Reutlingen}, address = {Reutlingen}, isbn = {978-3-9821179-1-1}, doi = {10.34645/opus-2346}, pages = {97 -- 103}, year = {2019}, language = {de} } @incollection{Eisenbarth2019, author = {Eisenbarth, Peter}, title = {Das Verhalten im Straßenverkehr als Beispiel fehlender Akzeptanz von Normen}, series = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, booktitle = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, editor = {Banke, Bernd}, publisher = {Hochschule Reutlingen}, address = {Reutlingen}, isbn = {978-3-9821179-1-1}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23448}, pages = {75 -- 86}, year = {2019}, language = {de} } @incollection{Berendes2019, author = {Berendes, Jochen}, title = {Blinde Flecken. Was sieht der Konstruktivismus als Ethik, was die traditionelle Ethik {\"u}blicherweise nicht sieht?}, series = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, booktitle = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, editor = {Banke, Bernd}, publisher = {Hochschule Reutlingen}, address = {Reutlingen}, isbn = {978-3-9821179-1-1}, doi = {10.34645/opus-2343}, pages = {57 -- 73}, year = {2019}, language = {de} } @article{WeissUrdlMayeretal.2019, author = {Weiss, Stephanie and Urdl, Katharina and Mayer, Hermann and Edith, Zikulnig-Rusch and Kandelbauer, Andreas}, title = {IR spectroscopy : suitable method for determination of curing degree and crosslinking type in melamine-formaldehyde resins}, series = {Journal of applied polymer science}, volume = {136}, journal = {Journal of applied polymer science}, number = {Aufsatz 47691}, publisher = {Wiley}, address = {New York, NY}, issn = {0021-8995}, doi = {10.1002/app.47691}, pages = {1 -- 10}, year = {2019}, abstract = {Melamine-formaldehyde (MF) resins are widely used as adhesives and finishing materials in the wood industry. During resin cure, either methylene ether or methylene bridges are formed, leading to the formation of a three-dimensional resin network. Not only the curing degree, but also the chemical species present in the cured resin determine the quality of the final product. Analytical methods allowing a detailed investigation of network formation are of great benefit to manufacturers. In the present work, resin cure of an MF precondensate is studied at different temperatures (100-200 °C) without considering the initial pH as a factor. Isoconversional kinetic analysis based on exothermal curing enthalpies enables calculation of the crosslinking degree at a given time/temperature regime. A semiquantitative determination of the chemical groups present is performed based on solid-state nuclear magnetic resonance data. Fourier transform infrared spectroscopy has shown to be a fast and reliable analytical tool with high sensitivity toward functional groups and with great potential for at-line process control.}, language = {en} } @incollection{Gourge2019, author = {Gourg{\´e}, Klaus}, title = {Wie sich das komplexe Thema CSR einfach kommunizieren l{\"a}sst : die ethische Marke : so wird CSR zum USP}, series = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, booktitle = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, editor = {Banke, Bernd}, publisher = {Hochschule Reutlingen}, address = {Reutlingen}, isbn = {978-3-9821179-1-1}, doi = {10.34645/opus-2345}, pages = {87 -- 95}, year = {2019}, language = {de} } @incollection{KoerberWeikOltman2019, author = {K{\"o}rber-Weik, Margot and Oltman, Iris}, title = {Systemtheorie f{\"u}r die Praxis : ein transdiziplin{\"a}res Modell systemischen Handelns mit Anwendungen}, series = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, booktitle = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, editor = {Banke, Bernd}, publisher = {Hochschule Reutlingen}, address = {Reutlingen}, isbn = {978-3-9821179-1-1}, doi = {10.34645/opus-2341}, pages = {29 -- 54}, year = {2019}, abstract = {Unser transdisziplin{\"a}res Modell systemischen Handelns verkn{\"u}pft Grundideen soziologischer Systemtheorien mit Grundideen angrenzender Disziplinen so, dass es auf soziale Systeme aller Art angewendet werden kann. Die Bandbreite reicht von Zwei-Personen-Systemen {\"u}ber Profit- und Non-Profit-Organisation, Staaten und internationale Organisationen bis hin zur Weltgesellschaft. Solche Systeme interagieren untereinander sowie mit nat{\"u}rlichen und technischen Systemen, ver{\"a}ndern dabei sich selbst und ihr Umfeld. Das Handeln jedes sozialen Systems l{\"a}sst sich mit Hilfe der sechs Dimensionen unseres Modells beschreiben, erkl{\"a}ren und gestalten. Das zeigt schon die Leitfrage, zu der wir diese Dimensionen verdichten: Wer ist wo (System mit Subsystemen), wie pr{\"a}sent (Interpretationen), hat/kann (Ressourcen) und darf/soll (Institutionen) was wie transformieren (Prozesse) und mit wem wie interagieren (Interaktionen)? Diese Abstraktheit erm{\"o}glicht Anwendungen auf alle Systeme, in Verbindung mit passenden Konkretisierungen. Das verdeutlichen wir beispielhaft prim{\"a}r am Hochschulsystem.}, language = {de} } @incollection{Fischer2019, author = {Fischer, Werner}, title = {Referat f{\"u}r Technik und Wissenschaftsethik : Wie kam es zu diesem Referat an den Fachhochschulen in Baden-W{\"u}rrtemberg? Wodurch er{\"o}ffnete sich f{\"u}r Michael W{\"o}rz ein Wirkungsfeld f{\"u}r 25 Jahre?}, series = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, booktitle = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, editor = {Banke, Bernd}, publisher = {Hochschule Reutlingen}, address = {Reutlingen}, isbn = {978-3-9821179-1-1}, doi = {10.34645/opus-2339}, pages = {15 -- 25}, year = {2019}, language = {de} } @article{TanSathyamurthyRolappetal.2019, author = {Tan, Jun and Sathyamurthy, Muralikrishna and Rolapp, Alexander and Gamez, Jonathan and Hennig, Eckhard and Sch{\"a}fer, Eric and Sommer, Ralf}, title = {A fully passive RFID temperature sensor SoC with an accuracy of ±0.4 ◦C (3σ) from 0 ◦C to 125 ◦C}, series = {IEEE journal of radio frequency identification}, volume = {3}, journal = {IEEE journal of radio frequency identification}, number = {1}, publisher = {IEEE}, address = {New York, NY}, issn = {2469-729X}, doi = {10.1109/JRFID.2019.2896145}, pages = {35 -- 45}, year = {2019}, abstract = {This paper presents a fully passive 13.56 -MHz RFID temperature sensor system-on-chip. Its power management unit operates over a large temperature range using a zero temperature coefficient bias source. On-chip temperature sensing is accomplished with low-voltage, low-power CMOS circuitry, and time-domain signal processing. Two readout commands have been defined to study supply noise sensitivity: 1) standard readout, where just a single set of data is transferred to the reader and 2) serial readout, where several sets of data are sent one after the other to the reader. With the standard readout command, the sensor suffers from interference from the RFID command packet and outputs interference as well, while the sensor outputs no interference with the serial readout command. Measurements show that sensor resolution with serial readout is improved by a factor of approximately 16 compared to standard readout. The chip was fabricated in a standard 0.35-μm CMOS technology and chip-on-board mounted to a tuned RFID transponder coil on an aluminum core FR4 PCB substrate. Real time wireless temperature sensing has been demonstrated with a commercial HF RFID reader. With a two-point calibration, the SoC achieves a 3σ sensing accuracy of ±0.4 ◦C from 0◦C to 125 ◦C.}, language = {en} } @article{Schmaeh2019, author = {Schm{\"a}h, Marco}, title = {Was man vom BAUHAUS f{\"u}r das Marketing lernen kann}, series = {Marke 41 : das neue Journal f{\"u}r Marketing}, journal = {Marke 41 : das neue Journal f{\"u}r Marketing}, number = {4}, publisher = {MIM, Marken-Institut M{\"u}nchen}, address = {M{\"u}nchen}, issn = {1866-5438}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23366}, pages = {42 -- 47}, year = {2019}, abstract = {100 Jahre nach der Gr{\"u}ndung des Bauhauses betrete ich die Bauhaus Universit{\"a}t Weimar und frage mich, wie das wohl damals war? Vor 100 Jahren haben Gropius, Muche, Mies van der Rohe, Schlemmer und Itten Vorlesungen hier gehalten und jetzt bin ich dran. Wir schreiben Geschichte! Deren Geist weht immer noch in den original erhaltenen Geb{\"a}uden und R{\"a}umen. Bei der genaueren Betrachtung des Bauhauses, das Weltruhm erlangt hat, kann man einiges lernen. Beispielsweise lohnt die {\"U}berlegung, was das Marketing vom Bauhaus lernen kann.}, language = {de} } @incollection{KleineMoellhoffBraunReichenbergeretal.2019, author = {Kleine-M{\"o}llhoff, Peter and Braun, Anja and Reichenberger, Volker and Seiter, Stephan}, title = {Approach to enable a material efficiency-strategy for small and medium sized manufacturing enterprises}, series = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, booktitle = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, editor = {Banke, Bernd}, publisher = {Hochschule Reutlingen}, address = {Reutlingen}, isbn = {978-3-9821179-1-1}, doi = {10.34645/opus-2335}, pages = {285 -- 305}, year = {2019}, abstract = {It has not yet been possible to achieve the desired aim of decoupling economic growth from global material demand. Small and medium sized enterprises (SMEs) represent the backbone of most industrialized economies. Although material efficiency is of vital importance for many SMEs, few of them actually treat it as their top priority. There is a cornucopia of tools and methods available which can be used for material efficiency purposes. These, however, have gained little ground in the SME-field. This work deals with the enabling factors for material efficiency improvements in manufacturing SMEs and projections towards aspects of supply chain and circular economy. A multi-disciplinary decoupling approach for manufacturing SMEs and an implementation roadmap for further practical development are proposed. The approach combines appropriate complexity of technology and socio-economic considerations. It enables a connection of existing methods and the implementation of established information technologies.}, language = {en} } @book{RossBeathMocker2019, author = {Ross, Jeanne and Beath, Cynthia and Mocker, Martin}, title = {Designed for digital : how to architect your business for sustained success}, publisher = {MIT Press}, address = {Cambridge, MA}, isbn = {978-0-262-04288-8}, pages = {185}, year = {2019}, abstract = {"Designed for digital" offers practical advice on digital transformation, with examples that include Amazon, BNY Mellon, DBS Bank, LEGO, Philips, Schneider Electric, USAA, and many other global organizations. Drawing on five years of research and in-depth case studies, the book is an essential guide for companies that want to disrupt rather than be disrupted in the new digital landscape.}, language = {en} } @incollection{BankeBaumgaertner2019, author = {Banke, Bernd and Baumg{\"a}rtner, Ulrike}, title = {Ethik \& nachhaltige Entwicklung - ein Vorschlag des gekoppelten Denkens und Handelns}, series = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, booktitle = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, editor = {Banke, Bernd}, publisher = {Hochschule Reutlingen}, address = {Reutlingen}, isbn = {978-3-9821179-1-1}, doi = {10.34645/opus-2334}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23348}, pages = {165 -- 183}, year = {2019}, abstract = {Die {\"o}ffentliche Verwaltung und die in ihr lebenden und arbeitenden Menschen sehen sich h{\"a}ufig mit einer institutionalisierten Dilemma-Situation konfrontiert. Die Ursachen hierf{\"u}r sind darin zu sehen, dass {\"o}ffentliches Verwaltungshanden mit sehr wenigen Ausnahmen keinem Selbstzweck dient. Stattdessen dient es anderen Funktionssystmen und wird mit deren bin{\"a}ren (Funktions-)Codes beobachtet und zwangsnotwendig bewertet. Die M{\"o}glichkeiten des Einzelnen, steuernd und gegebenenfalls korrigieren einzugreifen, sind in einer modernen durch extrem hohe Komplexit{\"a}t und (internationale) Verflechtung bestimmten Gesellschaft gering.}, language = {de} } @incollection{ThedieckBanke2019, author = {Thedieck, Franz and Banke, Bernd}, title = {Verwaltung zwischen Altruismus und institutionalisiertem Dilemma}, series = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, booktitle = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, editor = {Banke, Bernd}, publisher = {Hochschule Reutlingen}, address = {Reutlingen}, isbn = {978-3-9821179-1-1}, doi = {10.34645/opus-2333}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23334}, pages = {143 -- 162}, year = {2019}, abstract = {Eine der Hauptaufgaben der Ethik als wissenschaftlicher Disziplin ist es, dem Menschen Entscheidungshilfen f{\"u}r Situationen zu geben, in denen jede denkbare Handlungsalternative Vor- und/oder Nachteile hat, die ohne Weiteres nicht gegeneinander abgewogen werden k{\"o}nnen. Diese Situation wird als "Dilemma" bezeichnet. Dilemma-Situationen treten immer dann auf, wenn sich die moralisch-ethische Bewertung einer Situation von der Bewertung unterscheidet, die durch korrekte Anwendung der gesetzlichen Grundlagen vorgeschrieben wird. Menschen in der Verwaltung sind daher in besonderem Maße der Gefahr von Zielkonflikten ausgesetzt.}, language = {de} } @inproceedings{Streicher2017, author = {Streicher, Oliver}, title = {Sicherheitsbetrachtung des Internet of Things am Beispiel Smart Home}, series = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, booktitle = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, editor = {Kloos, Uwe}, publisher = {Hochschule Reutlingen, Fakult{\"a}t Informatik}, address = {Reutlingen}, isbn = {978-3-00-056455-0}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23317}, pages = {106 -- 114}, year = {2017}, abstract = {Die Arbeit stellt die Vision des Internet of Things (IoT) vor und betrachtet sowohl M{\"o}glichkeiten der Nutzung als auch Gefahrenpotentiale f{\"u}r die Sicherheit der Nutzer. Insbesondere wird hierbei der Anwendungsfall Smart Home n{\"a}her betrachtet und am Beispiel ZigBee gravierende Schw{\"a}chen dieser Ger{\"a}te aufgezeigt.}, language = {de} } @inproceedings{Karabulut2017, author = {Karabulut, M{\"u}cahit}, title = {IT-Sicherheit in der Industrie 4.0}, series = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, booktitle = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, editor = {Kloos, Uwe}, publisher = {Hochschule Reutlingen, Fakult{\"a}t Informatik}, address = {Reutlingen}, isbn = {978-3-00-056455-0}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23303}, pages = {96 -- 105}, year = {2017}, abstract = {Durch Industrie 4.0 kann die individuelle Fertigung von kleineren St{\"u}ckzahlen zu geringen Kosten erm{\"o}glicht werden. Daf{\"u}r m{\"u}ssen alle Anlagen miteinander vernetzt werden, um Daten austauschen und kommunizieren zu k{\"o}nnen. Durch die Vernetzung k{\"o}nnen neue Risiken und Gefahren entstehen. In dieser Arbeit wird die ITSicherheit in der Industrie 4.0 anhand m{\"o}glichen Bedrohungsszenarien, Herausforderungen und Gegenmaßnahmen evaluiert. Dabei wird untersucht, welche M{\"o}glichkeiten Industrieunternehmen haben, um Hackerangriffen vorzubeugen und ob bereits etablierte Sicherheitskonzepte f{\"u}r industrielle Anlagen einfach {\"u}bernommen werden k{\"o}nnen.}, language = {de} } @inproceedings{Roswag2017, author = {Roswag, Marc}, title = {Sicherheitsinfrastruktur in einem VANET : Architektur und Schwachstellen}, series = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, booktitle = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, editor = {Kloos, Uwe}, publisher = {Hochschule Reutlingen, Fakult{\"a}t Informatik}, address = {Reutlingen}, isbn = {978-3-00-056455-0}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23291}, pages = {86 -- 95}, year = {2017}, abstract = {Das Ziel dieser Arbeit ist, die Infrastruktur einer modernen Fahrzeug-zu Fahrzeug-Kommunikation auf ihre Sicherheit zu pr{\"u}fen. Dazu werden die Sicherheitsstandards f{\"u}r die Funkkommunikation genauer beschrieben und anschließend mit m{\"o}glichen Angriffsmodellen gepr{\"u}ft. Mit dem erl{\"a}uterten Wissen der VANET Architektur werden verschiedene Angriffe verst{\"a}ndlicher. Dadurch werden die Schwachstellen offengelegt und Gegenmaßnahmen an passenden Punkten in der Architektur verdeutlicht.}, language = {de} } @inproceedings{Schneider2017, author = {Schneider, David}, title = {Zukunft des neuen elektronischen Personalausweises}, series = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, booktitle = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, editor = {Kloos, Uwe}, publisher = {Hochschule Reutlingen, Fakult{\"a}t Informatik}, address = {Reutlingen}, isbn = {978-3-00-056455-0}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23284}, pages = {76 -- 85}, year = {2017}, abstract = {Diese Arbeit besch{\"a}ftigt sich mit dem neuen elektronischen Personalausweis. Zum einen werden in diesem Paper die Sicherheitsziele des Personalausweises und die technische Umsetzung der Architektur und Protokolle erkl{\"a}rt. Es wird der Ablauf einer Online-Identifizierung f{\"u}r einen Nutzer mithilfe des Ausweises aufgezeigt. Risiken und Schwachstellen der Technologie im Software- und Hardwarebereich werden diskutiert und die bereits erfolgten Hack-Angriffe aufgezeigt. Die Arbeit legt M{\"o}glichkeiten dar, wie sich der Nutzer vor Angriffen sch{\"u}tzen kann. Es werden die Gr{\"u}nde genannt, warum der neue Personalausweis online nur schwar Anklang findet und warum die Aufkl{\"a}rung {\"u}ber die zur Verf{\"u}gung stehenden Anwendungen, eine Preisreduzierung der Leseger{\"a}te sowie die vom Europa-Parlament und Europarat erlassene eIDAS-Verordnung nicht helfen werden, um die Nutzung voranzutreiben. Ergebnisse hierf{\"u}r liefert eine Nutzerstudie. Zum anderen werden Ideen genannt, wie die Nutzung der elektronischen Funktionen des Ausweises stattdessen zu f{\"o}rdern ist.}, language = {de} } @inproceedings{Goek2017, author = {G{\"o}k, Gamze}, title = {Inwiefern werden IT-Risiken durch ein Risikomanagement reduziert?}, series = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, booktitle = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, editor = {Kloos, Uwe}, publisher = {Hochschule Reutlingen, Fakult{\"a}t Informatik}, address = {Reutlingen}, isbn = {978-3-00-056455-0}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23272}, pages = {66 -- 75}, year = {2017}, abstract = {Im Rahmen der wissenschaftlichen Vertiefung soll auf Basis der vorhandenen Ans{\"a}tze das IT-Risikomanagement evaluiert werden. Hierbei soll die Frage, inwiefern das IT-Risikomanagement dem Unternehmen eine Hilfestellung bieten kann, gekl{\"a}rt und anschließend anhand von zwei Fallbeispielen dargestellt werden.}, language = {de} } @inproceedings{RieggerVinconPetrov2019, author = {Riegger, Christian and Vin{\c{c}}on, Tobias and Petrov, Ilia}, title = {Indexing large updatable datasets in multi-version database management systems}, series = {IDEAS '19 : proceedings of the 23rd International Database Applications \& Engineering Symposium, Athens, Greece, June 10-12, 2019}, booktitle = {IDEAS '19 : proceedings of the 23rd International Database Applications \& Engineering Symposium, Athens, Greece, June 10-12, 2019}, publisher = {ACM}, address = {New York, NY}, isbn = {978-1-4503-6249-8}, doi = {10.1145/3331076.3331118}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23269}, pages = {5}, year = {2019}, abstract = {Database Management Systems (DBMS) need to handle large updatable datasets in on-line transaction processing (OLTP) workloads. Most modern DBMS provide snapshots of data in multi-version concurrency control (MVCC) transaction management scheme. Each transaction operates on a snapshot of the database, which is calculated from a set of tuple versions. High parallelism and resource-efficient append-only data placement on secondary storage is enabled. One major issue in indexing tuple versions on modern hardware technologies is the high write amplification for tree-indexes. Partitioned B-Trees (PBT) [5] is based on the structure of the ubiquitous B+ Tree [8]. They achieve a near optimal write amplification and beneficial sequential writes on secondary storage. Yet they have not been implemented in a MVCC enabled DBMS to date. In this paper we present the implementation of PBTs in PostgreSQL extended with SIAS. Compared to PostgreSQL's B+-Trees PBTs have 50\% better transaction throughput under TPC-C and a 30\% improvement to standard PostgreSQL with Heap-Only Tuples.}, language = {en} } @article{LuccarelliTillmanLayetal.2019, author = {Luccarelli, Martin and Tillman, Shea and Lay, Rusty and Grundmeier, Anne-Marie and H{\"o}gsdal, Sabine}, title = {Sustainable design education for elementary schools: interdisciplinary development of new educational models through design thinking}, series = {The international journal of design education}, volume = {13}, journal = {The international journal of design education}, number = {4}, publisher = {Common Ground Research Networks}, address = {Champain, IL}, issn = {2325-128X}, doi = {10.18848/2325-128X/CGP/v13i04/1-25}, pages = {1 -- 25}, year = {2019}, abstract = {The development and preservation of children's innate creativity as they enter their professional career has grown in importance due to fundamental changes in today's economy and society. It is therefore key to understand how teaching strategies can contribute to educational change in the early stages of schooling. Design teaching encompasses a variety of skills that can help schools shift their focus to foster children's natural ability to "ask why" in their search for learning how to think and create. This article presents the results of an interdisciplinary workshop involving university students aiming to develop new educational approaches to foster children's creativity through design to be implemented in the elementary school curriculum of the German federal state Baden-W{\"u}rttemberg. To support the workshop participants in providing a holistic concept within a compressed time period, a sustainability framework was included to further articulate their brief. The teams who were composed of chemists, computer scientists, designers, and engineers, followed the Design Thinking process to develop their proposals. A kick-off meeting presenting results of an international qualitative survey with elementary school teachers, as well as expert input during the workshop addressing the relevant topics, provided teams with key information to define their design directions. Concepts designed by each team exhibited a comprehensive solution resulting in both the abstract "education idea" and physical embodiments of the tools. Their outputs included products, interior concepts to be implemented in classrooms, exercises as well as games to support the newly developed educational models. The benefits and limitations of these concepts along with key observations of participants' interdisciplinary collaboration are presented and discussed herein. Future work will investigate the Design knowledge of German elementary school teachers more in depth and will involve testing the new concepts in German elementary school environments.}, language = {en} } @inproceedings{ThomasKoeseSchmittetal.2018, author = {Thomas, Bernd and K{\"o}se, Ekrem and Schmitt, Peter and Bark, Cyrus and Rieder, Karl and Hamer, Burkhard}, title = {Stromoptimierte, flexible und residuallastangepasste KWK in der elektrochemischen Beschichtungsindustrie GalvanoFlex_BW : Zwischenbericht anl{\"a}sslich des Statuskolloquiums Umweltforschung Baden-W{\"u}rttemberg 2018, 19./20. April 2018, ... Fellbach}, publisher = {Landesanstalt f{\"u}r Umwelt Baden-W{\"u}rttemberg}, address = {Karlsruhe}, pages = {1 -- 11}, year = {2018}, abstract = {In dem vorliegenden Zwischenbericht sind die Arbeiten und Ergebnisse zusammengefasst, die im Rahmen des Projektes GalvanoFlex_BW w{\"a}hrend der ersten acht Projektmonate der insgesamt 2 1/2 j{\"a}hrigen Laufzeit durchgef{\"u}hrt und erzielt wurden. Ziel des Projektes ist die Untersuchung und Verbesserung der Energieeffizienz in Industrieunternehmen mit dem speziellen Fokus auf der Einf{\"u}hrung stromoptimiert betriebener KWK-Anlagen. Entsprechend des Arbeits- und Zeitplans sind die Literaturrecherche, die Festlegung von Prozesstypen, die Datenerfassung, die Strategieentwickung zur stromoptimierten KWK, die Optimierung der Schnittstelle zwischen KWK und Gleichrichtern, der Aufbau der Branchenplattform und die sozial-wissenschaftliche Begleitforschung beschrieben. Der aktuelle Projektstand deckt sich dabei im Wesentlichen mit den Vorgaben aus dem vorgelegten Zeitplan.}, language = {de} } @article{SchmaehSchumacherJaegeretal.2019, author = {Schm{\"a}h, Marco and Schumacher, Alexander and J{\"a}ger, Kirsten and Kromer, Raphael}, title = {Trends der Customer-Journey im B-to-B}, series = {Marketing review St. Gallen : die neue Thexis-Marketingfachzeitschrift f{\"u}r Theorie und Praxis}, volume = {36}, journal = {Marketing review St. Gallen : die neue Thexis-Marketingfachzeitschrift f{\"u}r Theorie und Praxis}, number = {5}, publisher = {Thexis Verlag}, address = {St. Gallen}, issn = {1865-6544}, pages = {68 -- 75}, year = {2019}, abstract = {Welche Trends beeinflussen die Customer-Journey im B-to-B und wie wird sie in naher Zukunft aussehen? Dieser Beitrag wirft einen Blick auf zuk{\"u}nftige Trends, welche die Customer-Journey im B-to-B erheblich beeinflussen werden. Exemplarisch wird die Ausgestaltung und Optimierung der zuk{\"u}nftigen Customer-Journey mittels Lead-Profiling am Beispiel der K{\"u}nstlichen Intelligenz aufgezeigt, bei der neue Technologien Daten nutzbringend verwenden. Dar{\"u}ber hinaus steht die Customer-Journey-Transformation im Mittelpunkt. Schließlich ist es doch gerade die komplexe Transformation der Customer-Journey, die aufgrund ihrer Komplexit{\"a}t h{\"a}ufig von den Unternehmen vernachl{\"a}ssigt wird.}, language = {de} } @article{ThomasMueller2019, author = {Thomas, Bernd and M{\"u}ller, Tobias}, title = {Wirtschaftlichkeit von Blockheizkraftwerken in Galvanikbetrieben}, series = {WOMag : Kompetenz in Werkstoff und funktioneller Oberfl{\"a}che}, journal = {WOMag : Kompetenz in Werkstoff und funktioneller Oberfl{\"a}che}, number = {9}, publisher = {WOTech}, address = {Waldshut-Tiengen}, issn = {2195-5891}, pages = {50 -- 52}, year = {2019}, abstract = {Am Beispiel von zwei Unternehmen mit stark unterschiedlichen Strom- und W{\"a}rmebedarfswerten zeigt sich, dass aufgrund einer Amortisationszeit im g{\"u}nstigsten Fall von etwa 2 Jahren der Einsatz von Blockheizkraftwerken in jedem Fall wirtschaftlich lohnenswert ist. Dabei wird deutlich, dass die Auslegung des Blockheizkraftwerkes stark von den Strom- und W{\"a}rmebedarfswerten abh{\"a}ngt und dass der Pufferspeicher keinesfalls zu klein ausgelegt werden sollte. Das gute wirtschaftliche Ergebnis gilt bereits f{\"u}r den standardm{\"a}ßig eingesetzten w{\"a}rmegef{\"u}hrten Betrieb des Blockheizkraftwerkes, wobei eine intelligente stromoptimierte Steuerung mit Lastspitzenmanagement die Wirtschaftlichkeit weiter verbessert. Grunds{\"a}tzlich ist darauf zu achten, dass Blockheizkraftwerke auf einen l{\"a}ngerfristigen Betrieb ausgelegt sind. Bei j{\"a}hrlichen Betriebszeiten von 4.000 Stunden bis 8.000 Stunden ergibt sich ein Betrieb des Blockheizkraftwerkes {\"u}ber 6 bis 12 Jahre.}, language = {de} } @article{SchmaehKirchherrBenz2019, author = {Schm{\"a}h, Marco and Kirchherr, Matthias and Benz, Nicole Sandra}, title = {LinkedIn Sales Navigator : das Tool f{\"u}r die Zukunft des Vertriebs im B-to-B?}, series = {Marke 41 : das neue Journal f{\"u}r Marketing}, journal = {Marke 41 : das neue Journal f{\"u}r Marketing}, number = {3}, publisher = {MIM, Marken-Institut M{\"u}nchen}, address = {M{\"u}nchen}, issn = {1866-5438}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23248}, pages = {8 -- 15}, year = {2019}, abstract = {Social Selling gewinnt im B-to-B-Vertrieb immer mehr an Bedeutung. Um auf dem globalen Wettbewerbsfeld mithalten zu k{\"o}nnen, gen{\"u}gt es nicht mehr, seine Kunden {\"u}ber die traditionellen Verkaufskan{\"a}le zu identifizieren und zu erreichen. F{\"u}r diesen Zweck bietet LinkedIn das Vertriebstool Sales Navigator an. Doch wo ist dieses Tool im Social Selling einzuordnen? K{\"o}nnen dadurch Mehrwerte im Vertriebsprozess generiert werden? Mithilfe von Experteninterviews werden diese Fragen im Folgenden er{\"o}rtert.}, language = {de} } @article{EngelLaemmleKleineMoellhoffetal.2019, author = {Engel, Tamara and L{\"a}mmle, Jutta and Kleine-M{\"o}llhoff, Peter and Belger, Christian and Lenz, Oliver and Ruoff, Julian and Storch, Lars and Wieling, Torge}, title = {St{\"o}rungsfreie Materialversorgung der Produktion: praktische Umsetzung innerbetrieblicher Materialflussoptimierungen im Sondermaschinenbau}, series = {Logistics journal : LJ / Wissenschaftliche Gesellschaft f{\"u}r Technische Logistik. Nicht-referierte Ver{\"o}ffentlichungen}, journal = {Logistics journal : LJ / Wissenschaftliche Gesellschaft f{\"u}r Technische Logistik. Nicht-referierte Ver{\"o}ffentlichungen}, publisher = {WGTL}, address = {Stuttgart ; Dortmund}, issn = {1860-5923}, doi = {10.2195/lj_NotRev_engel_de_201908_01}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23232}, pages = {1 -- 11}, year = {2019}, abstract = {Der Sondermaschinenbau ist durch eine hohe Variantenvielfalt und komplexe Materialfl{\"u}sse charakterisiert (Reinhart, Bredow \& Pohl, 2009, S. 131). Die vorliegende Publikation stellt die im Zuge eines Praxisprojekts angewendeten Vorgehensweisen zur Materialflussoptimierung im Sondermaschinenbau vor. Dabei werden Erfahrungswerte und Hindernisse herausgearbeitet.}, language = {de} } @misc{OPUS4-2332, title = {Von Br{\"u}cken, Menschen und Systemen : Festschrift f{\"u}r Michael W{\"o}rz}, editor = {Banke, Bernd}, publisher = {Hochschule Reutlingen}, address = {Reutlingen}, isbn = {978-3-9821179-0-4}, doi = {10.34645/opus-2332}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23325}, pages = {442}, year = {2019}, abstract = {Michael W{\"o}rz erf{\"u}llte 26 Jahre lang das Amt und die Aufgabe des Referenten f{\"u}r Technik- und Wirtschaftsethik an den Hochschulen f{\"u}r Angewandte Wissenschaften des Landes Baden-W{\"u}rttemberg. Ihm war die Interdisziplinarit{\"a}t, die diese Aufgaben erfordern w{\"u}rde, in sein berufliches Stammbuch geschrieben. Ein Ingenieur, der Philosophie studierte und dort promovierte, der zudem sein wissenschaftliches Schaffen aus der Perspektive der Theorien eines Soziologen vorantrieb, hatte gelernt, interdisziplin{\"a}r zu denken und zu arbeiten. Ihm fiel die Aufgabe zu, das zum {\"U}berleben k{\"u}nftiger Generationen fach{\"u}bergreifende, notwendige Wissen in die akademische Ausbildung der Hochschulen f{\"u}r Angewandte Wissenschaften zu tragen, und das hat Michael W{\"o}rz {\"u}ber die Jahre seiner Amtszeit wahrlich getan. Neben diesen Aufgaben eines engagierten und innovativen Hochschullehrers war er auch in der Politik ein streitbarer Vertreter der Ethik und der Nachhaltigen Entwicklung, der geholfen hat, den Lehrenden an den Hochschulen den Weg zu bereiten.}, language = {de} } @article{LuckeSteimleCuketal.2019, author = {Lucke, Dominik and Steimle, Frank and Cuk, Emir and Luckert, Michael and Schneider, Matthias and Schel, Daniel}, title = {Implementation of the MIALinx user interface for future manufacturing environments}, series = {Procedia CIRP}, volume = {81}, journal = {Procedia CIRP}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2212-8271}, doi = {10.1016/j.procir.2019.03.163}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23202}, pages = {606 -- 611}, year = {2019}, abstract = {The flexible and easy-to-use integration of production equipment and IT systems on the shop floor becomes more and more a success factor for manufacturing to adapt rapidly to changing situations. The approach of the Manufacturing Integration Assistant (MIALinx) is to simplify this challenge. The integration steps range from integrating sensors over collecting and rule-based processing of sensor information to the execution of required actions. This paper presents the implementation of MIALinx to retrofit legacy machines for Industry 4.0 in a manufacturing environment and focus on the concept and implementation of the easy-to-use user interface as a key element.}, language = {en} } @article{GordonRohrbeckSchwarz2019, author = {Gordon, Adam and Rohrbeck, Ren{\´e} and Schwarz, Jan Oliver}, title = {Escaping the "faster horses" trap : bridging strategic foresight and design-based innovation}, series = {Technology innovation management review}, volume = {9}, journal = {Technology innovation management review}, number = {8}, publisher = {Talent First Network}, address = {Ottawa}, issn = {1927-0321}, doi = {10.22215/timreview/1259}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23190}, pages = {30 -- 42}, year = {2019}, abstract = {Design thinking is inherently and invariably oriented towards the future in that all design is for products, services or events that will exist in the future, and be used by people in the future. This creates an overlap between the domains of design thinking and strategic foresight. A small but significant literature has grown up in the strategic foresight field as to how design thinking may be used to improve its processes. This paper considers the other side of the relationship: how methods from the strategic foresight field may advance design thinking, improving insight into the needs and preferences of users of tomorrow, including how contextual change may suddenly and fundamentally reshape these. A side-by-side comparison of representative models from each field is presented, and it is shown how these may be assembled together to create foresight-informed design-based innovation.}, language = {en} } @article{SchneiderLuckeAdolf2019, author = {Schneider, Matthias and Lucke, Dominik and Adolf, Thomas}, title = {A cyber-physical failure management system for smart factories}, series = {Procedia CIRP}, volume = {81}, journal = {Procedia CIRP}, editor = {Butala, Peter}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2212-8271}, doi = {10.1016/j.procir.2019.03.052}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23188}, pages = {300 -- 305}, year = {2019}, abstract = {In smart factories, maintenance is still an important aspect to safeguard the performance of their production. Especially in case of failures of machine components diagnosis is a time-consuming task. This paper presents an approach for a cyber-physical failure management system, which uses information from machines such as programmable logic controller or sensor data and IT systems to support the diagnosis and repairing process. Key element is a model combining the different information sources to detect deviations and to determine a probable failed component. Furthermore, the approach is prototypically implemented for leakage detection in compressed air networks.}, language = {en} } @inproceedings{VafiadisTaefi2019, author = {Vafiadis, Nico and Taefi, Tessa}, title = {Differentiating blockchain technology to optimize the processes quality in industry 4.0}, series = {IEEE 5th World Forum on Internet of Things : conference proceedings : 15-18 April 2019, Limerick, Ireland}, booktitle = {IEEE 5th World Forum on Internet of Things : conference proceedings : 15-18 April 2019, Limerick, Ireland}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-4980-0}, doi = {10.1109/WF-IoT.2019.8767288}, pages = {864 -- 869}, year = {2019}, abstract = {The complexity of supply chains increases, especially due to the geographical spread of supplier and customer networks. In the connected and automated supply chains of the industry 4.0, even more nodes are incorporated in supply chains. This paper discusses the possible improvement of process quality in the industry 4.0 through the different blockchain and distributed ledger technologies. We derived hypotheses from a literature review and asked German blockchain experts from the industry to validate and discuss the hypotheses. We find that the different blockchain technologies and consensus algorithms have different strength with regard to quality improvement. One central finding is that IOTA, developed especially for the IoT and deemed the 'next evolutionary step' is scalable and hence may increase the process efficiency, but at the same time is more vulnerable than other blockchain implementations, which again may reduce the overall process quality.}, language = {en} } @inproceedings{KehrerBlochinger2019, author = {Kehrer, Stefan and Blochinger, Wolfgang}, title = {TASKWORK: a cloud-aware runtime system for elastic task-parallel HPC applications}, series = {CLOSER 2019 : proceedings of the 9th International Conference on Cloud Computing and Services Science : Heraklion, Crete, Greece, May 2-4, 2019}, booktitle = {CLOSER 2019 : proceedings of the 9th International Conference on Cloud Computing and Services Science : Heraklion, Crete, Greece, May 2-4, 2019}, editor = {M{\´e}ndez Mu{\~n}oz, Victor}, publisher = {SCITEPRESS}, address = {Set{\´u}bal, Portugal}, doi = {10.5220/0007795501980209}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-23000}, pages = {198 -- 209}, year = {2019}, abstract = {With the capability of employing virtually unlimited compute resources, the cloud evolved into an attractive execution environment for applications from the High Performance Computing (HPC) domain. By means of elastic scaling, compute resources can be provisioned and decommissioned at runtime. This gives rise to a new concept in HPC: Elasticity of parallel computations. However, it is still an open research question to which extent HPC applications can benefit from elastic scaling and how to leverage elasticity of parallel computations. In this paper, we discuss how to address these challenges for HPC applications with dynamic task parallelism and present TASKWORK, a cloud-aware runtime system based on our findings. TASKWORK enables the implementation of elastic HPC applications by means of higher level development frameworks and solves corresponding coordination problems based on Apache ZooKeeper. For evaluation purposes, we discuss a development framework for parallel branch-and-bound based on TASKWORK, show how to implement an elastic HPC application, and report on measurements with respect to parallel efficiency and elastic scaling.}, language = {en} } @inproceedings{KehrerRiebandtBlochinger2019, author = {Kehrer, Stefan and Riebandt, Florian and Blochinger, Wolfgang}, title = {Container-based module isolation for cloud services}, series = {13th IEEE International Conference on Service-Oriented System Engineering ; 10th International Workshop on Joint Cloud Computing ; 2019 IEEE International Workshop on Cloud Computing in Robotic Systems : 4-9 April 2019, San Francisco East Bay, California : proceedings}, booktitle = {13th IEEE International Conference on Service-Oriented System Engineering ; 10th International Workshop on Joint Cloud Computing ; 2019 IEEE International Workshop on Cloud Computing in Robotic Systems : 4-9 April 2019, San Francisco East Bay, California : proceedings}, editor = {Shi, Dianxi}, publisher = {IEEE}, address = {Piscataway, NJ}, doi = {10.1109/SOSE.2019.00032}, pages = {177 -- 186}, year = {2019}, abstract = {Due to frequently changing requirements, the internal structure of cloud services is highly dynamic. To ensure flexibility, adaptability, and maintainability for dynamically evolving services, modular software development has become the dominating paradigm. By following this approach, services can be rapidly constructed by composing existing, newly developed and publicly available third-party modules. However, newly added modules might be unstable, resource-intensive, or untrustworthy. Thus, satisfying non-functional requirements such as reliability, efficiency, and security while ensuring rapid release cycles is a challenging task. In this paper, we discuss how to tackle these issues by employing container virtualization to isolate modules from each other according to a specification of isolation constraints. We satisfy non-functional requirements for cloud services by automatically transforming the modules comprised into a container-based system. To deal with the increased overhead that is caused by isolating modules from each other, we calculate the minimum set of containers required to satisfy the isolation constraints specified. Moreover, we present and report on a prototypical transformation pipeline that automatically transforms cloud services developed based on the Java Platform Module System into container-based systems.}, language = {en} } @inproceedings{Fluck2017, author = {Fluck, Tobias}, title = {Der Einsatz von Perception Neuron bei schneller Bewegungsausf{\"u}hrung}, series = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, booktitle = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, editor = {Kloos, Uwe}, publisher = {Hochschule Reutlingen, Fakult{\"a}t Informatik}, address = {Reutlingen}, isbn = {978-3-00-056455-0}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22949}, pages = {56 -- 65}, year = {2017}, abstract = {Mittlerweile ist der Einsatz von technischen Hilfsmitteln zu Analysezwecken im Sport fester Bestandteil im Trainingsalltag von Trainern und Athleten. In nahezu jeder Sportart werden Videoaufzeichnungen genutzt, um die Bewegungsausf{\"u}hrung zu dokumentieren und zu analysieren. Allerdings reichen Aufnahmen von einem statischen Standort oftmals nicht mehr aus. An dieser Stelle kann Virtual Reality (VR) eine L{\"o}sung dieses Problems bieten. Durch VR kann der aufgezeichneten Szene eine weitere Ebene hinzugef{\"u}gt und die Bewegungsabl{\"a}ufe neu und detaillierter bewertet werden. Um Bewegungen in einer virtuellen Umgebung abzubilden, m{\"u}ssen diese mittels Motion Capturing (MoCap) aufgezeichnet werden. Ziel dieser Arbeit ist es, herauszufinden, ob das MoCap System Perception Neuron in der Lage ist, Bewegungen in hoher Geschwindigkeit zu erfassen.}, language = {de} } @inproceedings{Preuss2017, author = {Preuß, Iana}, title = {IT-Sicherheit beim autonomen Fahren}, series = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, booktitle = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, editor = {Kloos, Uwe}, publisher = {Hochschule Reutlingen, Fakult{\"a}t Informatik}, address = {Reutlingen}, isbn = {978-3-00-056455-0}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22936}, pages = {47 -- 55}, year = {2017}, abstract = {In den letzten Jahren besch{\"a}ftigten sich Forscher und Automobilhersteller mit den Voraussetzungen f{\"u}r die Einf{\"u}hrung von autonomem Fahren. F{\"u}r Innovationen und Gesch{\"a}ftsmodelle im Bereich der intelligenten Mobilit{\"a}t, aber auch innerhalb der digitalen Wertsch{\"o}pfungskette, spielen generell Zuverl{\"a}ssigkeit und Qualit{\"a}t der digitalen Daten{\"u}bertragung eine entscheidende Rolle. Bevor das autonome Fahren vollst{\"a}ndig eingef{\"u}hrt wird, muss man feststellen, welche Anforderungen an die digitale Infrastruktur beachtet werden m{\"u}ssen, gleichzeitig muss die Bedrohungslandschaft f{\"u}r autonomes Fahren analysiert werden. Die folgende Arbeit besch{\"a}ftigt sich damit, die Anforderungen und Gefahren zu analysieren und allgemeine Handlungsempfehlungen vorzuschlagen.}, language = {de} } @inproceedings{Fleischer2017, author = {Fleischer, Tobias}, title = {Evaluierung von Frameworks zur Detektion von Facial Feature Points}, series = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, booktitle = {Informatics inside : digital future : Informatik-Konferenz an der Hochschule Reutlingen, 10. Mai 2017. - (Informatics inside ; 17)}, editor = {Kloos, Uwe}, publisher = {Hochschule Reutlingen, Fakult{\"a}t Informatik}, address = {Reutlingen}, isbn = {978-3-00-056455-0}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22927}, pages = {37 -- 46}, year = {2017}, abstract = {Ein stark erforschtes Gebiet der Computer Vision ist die Detektion von markanten Punkten des Gesichtszuges (englisch: facial feature detection), wie der Mundwinkel oder des Kinns. Daher lassen sich eine Vielzahl von ver{\"o}ffentlichten Verfahren finden, die sich jedoch teils deutlich hinsichtlich der Detektionsgenauigkeit, Robustheit und Geschwindigkeit unterscheiden. So sind viele Verfahren nur bedingt echtzeitf{\"a}hig oder liefern nur mit hochaufgel{\"o}sten Bildquellen ein zufriedenstellendes Ergebnis. In den letzten Jahren wurden daher Verfahren entwickelt, die versuchen, diese Problematiken zu l{\"o}sen. In dieser Arbeit erfolgt eine Betrachtung dreier dieser State-of-the-Art Verfahren: Constrained Local Neural Fields (CLNF), Discriminative Response Map Fitting (DRMF) und Structured Output SVM (SO SVM), sowie deren Implementierungen. Dazu erfolgt ein empirischer Vergleich hinsichtlich der Detektionsgenauigkeit.}, language = {de} } @book{OPUS4-2291, title = {Informatics inside : connect(IT) : Informatik-Konferenz an der Hochschule Reutlingen, 09. Mai 2018. - (Informatics inside ; 18)}, editor = {Kloos, Uwe and Mart{\´i}nez Madrid, Natividad and Tullius, Gabriela}, publisher = {Hochschule Reutlingen, INF}, address = {Reutlingen}, isbn = {978-3-00-058645-3}, pages = {112}, year = {2018}, abstract = {Mit der Informatics Inside 2018 findet diese Veranstaltungsform bereits zum 10. Mal statt und wir freuen uns besonders auf dieses Jubil{\"a}um. Die diesj{\"a}hrige Konferenz steht unter dem Motto „connect(IT);" und zeigt damit einmal mehr die zentrale Bedeutung der Informatik im Zusammenhang mit Vernetzungen und dies auf allen Ebenen. Es geht nicht nur um die technische Vernetzung von Maschinen und Services, sondern auch um die Vernetzung von Menschen untereinander und die Zusammenarbeit zwischen Mensch und Maschine. Gerade die letzten beiden Punkte spiegeln einen der Schwerpunkte des Masterstudiengangs Human-Centered Computing sehr sch{\"o}n wieder. Sie finden in dem vorliegenden Tagungsband Fachbeitr{\"a}ge aus dem medizinischen Umfeld ebenso wie vielf{\"a}ltige Anwendungen aus dem Fahrzeugsektor. Selbstverst{\"a}ndlich spielt das Thema Sicherheit in vernetzten Umgebungen eine wichtige Rolle und auch dazu finden Sie einen spannenden Beitrag. Der Kulturwandel im Bereich der Softwareentwicklung ist ebenso ein Thema wie Simulationen in verschiedenen Zusammenh{\"a}ngen. Die Informatics Inside ist eine wissenschaftliche Konferenz des Masterstudiengangs Human-Centered Computing und wird von den Studierenden organisiert und durchgef{\"u}hrt. Sie erhalten w{\"a}hrend ihres Masterstudiums die Gelegenheit, sich in einem Fachgebiet ihrer Wahl zu vertiefen. Dies kann an der Hochschule, in einem Unternehmen, einem Forschungsinstitut oder im Ausland durchgef{\"u}hrt werden. Gerade diese flexible Ausgestaltung der Lehrveranstaltung „Wissenschaftliche Vertiefung" f{\"u}hrt zu vielf{\"a}ltigen Themenfeldern, die von den Studierenden bearbeitet werden. Neben der eigentlichen fachlichen Vertiefung spielt auch die Pr{\"a}sentation von wissenschaftlichen Ergebnissen eine wichtige Rolle und dies nicht nur w{\"a}hrend des Studiums. Ein gew{\"a}hltes Fachgebiet so allgemeinverst{\"a}ndlich aufzubereiten und zu vermitteln, dass es auch f{\"u}r Nicht-Spezialisten verst{\"a}ndlich wird, stellt immer wieder eine besondere Herausforderung dar.}, language = {de} } @article{DarunPalmAthinarayananetal.2019, author = {Darun, Mohd Ridzuan and Palm, Daniel and Athinarayanan, Ragu and Hummel, Vera and Leipzig, Konrad von}, title = {The learning factory - a new stimulus to enhance international collaboration}, series = {Procedia manufacturing}, volume = {31}, journal = {Procedia manufacturing}, editor = {Herrmann, Christoph}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2351-9789}, doi = {10.1016/j.promfg.2019.03.046}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22865}, pages = {290 -- 295}, year = {2019}, abstract = {The paper describes a new stimulus using learning factories and an academic research programme - an M.Sc. in Digital Industrial Management and Engineering (DIME) comprising a double degree - to enhance international collaboration between four partner universities. The programme will be structured in such a way as to maintain or improve the level of innovation at the learning factories of each partner. The partners agreed to use Learning Factory focus areas along with DIME learning modules to stimulate international collaboration. Furthermore, they identified several research areas within the framework of the DIME program to encourage horizontal and vertical collaboration. Vertical collaboration connects faculty expertise across the Learning Factory network to advance knowledge in one of the focus areas, while Horizontal collaboration connects knowledge and expertise across multiple focus areas. Together they offer a platform for students to develop disciplinary and cross-disciplinary applied research skills necessary for addressing the complex challenges faced by industry. Hence, the university partners have the opportunity to develop the learning factory capabilities in alignment with the smart manufacturing concept. The learning factory is thus an important pillar in this venture. While postgraduate students/researchers in the DIME program are the enablers to ensure the success of entire projects, the learning factory provides a learning environment which is entirely conducive to fostering these successful collaborations. Ultimately, the partners are focussed on utilising smart technologies in line with the digitalization of the production process.}, language = {en} } @inproceedings{PetrovKochHardocketal.2019, author = {Petrov, Ilia and Koch, Andreas and Hardock, Sergej and Vin{\c{c}}on, Tobias and Riegger, Christian}, title = {Native storage techniques for data management}, series = {2019 IEEE 35th International Conference on Data Engineering : 8 - 11 April 2019, Macau, SAR, PR China : proceedings}, booktitle = {2019 IEEE 35th International Conference on Data Engineering : 8 - 11 April 2019, Macau, SAR, PR China : proceedings}, editor = {Jensen, Christian}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-7474-1}, doi = {10.1109/ICDE.2019.00236}, pages = {2048 -- 2051}, year = {2019}, abstract = {In the present tutorial we perform a cross-cut analysis of database storage management from the perspective of modern storage technologies. We argue that neither the design of modern DBMS, nor the architecture of modern storage technologies are aligned with each other. Moreover, the majority of the systems rely on a complex multi-layer and compatibility oriented storage stack. The result is needlessly suboptimal DBMS performance, inefficient utilization, or significant write amplification due to outdated abstractions and interfaces. In the present tutorial we focus on the concept of native storage, which is storage operated without intermediate abstraction layers over an open native storage interface and is directly controlled by the DBMS.}, language = {en} } @article{SchmaehHaemmerleKolbetal.2019, author = {Schm{\"a}h, Marco and H{\"a}mmerle, Anne and Kolb, Marie and Kurz, Katrin and Okkuscu, Burak and Solarino, Massimo and Strehl, Kathrin}, title = {Der deutsche Mittelstand - Aufbruch in das digitale Zeitalter? Teil 2: Quo vadis?}, series = {Marke 41 : das neue Journal f{\"u}r Marketing}, journal = {Marke 41 : das neue Journal f{\"u}r Marketing}, number = {2}, publisher = {MIM, Marken-Institut M{\"u}nchen}, address = {M{\"u}nchen}, issn = {1866-5438}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22787}, pages = {68 -- 74}, year = {2019}, abstract = {Zur Ermittlung des Quo Vadis bewerten die Teilnehmer mit „trifft zu" bis „trifft nicht zu", inwieweit sie die neun Trends als Kerntrend der Digitalisierung ansehen. Auf Basis der Antworten werden ein bis vier Punkte vergeben und ein Ranking erstellt. Die Auswertung ergibt, dass Vernetzte Produktion, gefolgt von Big-Data-Analytics und digitale Kommunikation als wichtigste Kerntrends gesehen werden. Cloud Computing, Internet der Dinge und Digitale Gesch{\"a}ftsmodelle werden dagegen weniger als Kerntrends angenommen.}, language = {de} } @article{Schmaeh2019, author = {Schm{\"a}h, Marco}, title = {Touchpoint Airport : Effiziente Markeninszenierung entlang der Customer Journey}, series = {Marke 41 : das neue Journal f{\"u}r Marketing}, journal = {Marke 41 : das neue Journal f{\"u}r Marketing}, number = {2}, publisher = {MIM, Marken-Institut M{\"u}nchen}, address = {M{\"u}nchen}, issn = {1866-5438}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22777}, pages = {18 -- 20}, year = {2019}, abstract = {Interview mit Prof. Dr. Marco Schm{\"a}h, Lehrstuhl f{\"u}r Marketing und Vertriebsmanagement an der ESB Business School Reutlingen sowie Gr{\"u}nder des Airport Marketing Institute AMI, zur wachsenden Bedeutung von Airport-Marketing und Airport-Medien in der digitalen Transformation.}, language = {de} } @article{OstertagScholzKleinetal.2019, author = {Ostertag, Edwin and Scholz, Miriam and Klein, Julia and Rebner, Karsten and Oelkrug, Dieter}, title = {Pigmentation of white, brown and green chicken eggshells analyzed by reflectance, transmittance and fluorescence spectroscopy}, series = {ChemistryOpen}, volume = {8}, journal = {ChemistryOpen}, number = {8}, publisher = {Wiley-VCH-Verl.}, address = {Weinheim}, issn = {2191-1355}, doi = {10.1002/open.201900154}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22768}, pages = {1084 -- 1093}, year = {2019}, abstract = {We report on the reflectance, transmittance and fluorescence spectra (λ=200-1200nm) of four types of chicken eggshells (white, brown, light green, dark green) measured in situ without pretreatment and after ablation of 20-100 μm of the outer shell regions. The color pigment protoporphyrin IX (PPIX) is embedded in the protein phase of all four shell types as highly fluorescent monomers, in the white and light green shells additionally as non-fluorescent dimers, and in the brown and dark green shells mainly as non-fluorescent poly-aggregates. The green shell colors are formed from an approximately equimolar mixture of PPIX and biliverdin. The axial distribution of protein and color pigments were evaluated from the combined reflectances of both the outer and inner shell surfaces, as well as from the transmittances. For the data generation we used the radiative transfer model in the random walk and Kubelka-Munk approaches.}, language = {en} } @book{Nufer2019, author = {Nufer, Gerd}, title = {Der Halo-Effekt im Fußball}, publisher = {Universit{\"a}tsbibliothek T{\"u}bingen}, address = {T{\"u}bingen}, doi = {10.15496/publikation-28604}, pages = {6}, year = {2019}, abstract = {Der Halo-Effekt ist eine aus der Sozialpsychologie bekannte kognitive Verzerrung. Er tritt dann auf, wenn ein globaler Eindruck oder eine Information {\"u}ber ein hervorstechendes Merkmal die Beurteilung anderer Eigenschaften pr{\"a}gt. Im vorliegenden Beitrag soll der Frage nachgegangen werden: Gibt es einen Halo-Effekt im Fußball? {\"U}berstrahlt der sportliche Erfolg bzw. Misserfolg eines Vereins andere sportliche Aspekte? Verzerrt der sportliche Erfolg bzw. Misserfolg die Wahrnehmung der Fans hinsichtlich nicht-sportlicher Aspekte?}, language = {de} } @book{NuferBuehler2019, author = {Nufer, Gerd and B{\"u}hler, Andr{\´e}}, title = {Warum Sponsoren in Bildung und nicht nur in Banden investieren sollten}, publisher = {Universit{\"a}tsbibliothek T{\"u}bingen}, address = {T{\"u}bingen}, doi = {10.15496/publikation-26927}, pages = {9}, year = {2019}, abstract = {Die meisten Manager-Jobs im Bundesliga-Fußball gehen an ehemalige Spieler. Also an M{\"a}nner, die ihr Leben fr{\"u}h dem Fußball gewidmet und auf eine spezifische Sportmanagement-Ausbildung verzichtet haben. Bei den Vereinen findet heute ein Umdenken statt - ein erster Club bietet durch ein Konzept ganz neue M{\"o}glichkeiten: Der VFB Stuttgart hat mit der "VfB Stuttgart Akademie" ein regionales Netzwerk f{\"u}r Bildung geschaffen, das in Deutschland einzigartig ist. Das Flaggschiff der VfB Stuttgart Akademie ist der sogenannte "VfB-Master", ein berufsbegleitendes Masterstudium namens "MBA Leadership and Sports Management", das eigens f{\"u}r die VfB Stuttgart Akademie von der HfWU N{\"u}rtingen-Geislingen und dem Deutschen Institut f{\"u}r Sportmarketing in enger Abstimmung mit dem VfB Stuttgart maßgeschneidert entwickelt wurde und das die beiden Themen Sport und Wirtschaft auf außergew{\"o}hnliche Art und Weise miteinander verkn{\"u}pft.}, language = {de} } @book{NuferKurzke2019, author = {Nufer, Gerd and Kurzke, Sophie Marie}, title = {Erfolgsfaktoren und Misserfolgsfaktoren im Low Budget Guerilla Marketing}, publisher = {Universit{\"a}tsbibliothek T{\"u}bingen}, address = {T{\"u}bingen}, doi = {10.15496/publikation-30455}, pages = {19}, year = {2019}, abstract = {Eine hohe Werbewirkung erreichen, die sich durch Kreativit{\"a}t von Wettbewerbern absetzt und das mit geringen finanziellen Mitteln - das ist eine Wunschvorstellung f{\"u}r viele Start-Ups. Doch offen bleibt die Frage nach dem Wie. Eine M{\"o}glichkeit, dieses Ziel zu erreichen, bildet das Low Budget Guerilla Marketing. Die vorliegende Arbeit besch{\"a}ftigt sich damit, wie Guerilla Marketing mit einem {\"u}berschaubaren Budget erfolgreich umgesetzt werden kann. Den Rahmen f{\"u}r die Analyse bildet die Erfolgsfaktorenforschung. Erarbeitet werden entscheidend Erfolgs- und Misserfolgsfaktoren des Low Budget Guerilla Marketing.}, language = {de} } @misc{BaeuerleLorenzMannhardtetal.2018, author = {B{\"a}uerle, Tim and Lorenz, G{\"u}nter and Mannhardt, Joachim and Ostertag, Edwin and Rebner, Karsten}, title = {Vorrichtung und Verfahren zur Analyse eines Materialstroms}, pages = {24}, year = {2018}, abstract = {Die Erfindung betrifft eine Vorrichtung und Verfahren zur Analyse eines Materialstroms (S) mit einem Einlassbereich (E), einem Messbereich (M) und einen Auslassbereich (A) sowie mit einer ersten Weiche (W1) und einer zweiten Weiche (W2) und einem Umlenkbereich (U), wobei die beiden Weichen (W1, W2) in einem ersten Schaltzustand (Z1) einen durchg{\"a}ngigen ersten Materialdurchstr{\"o}mungsraum vom Einlassbereich (E) {\"u}ber die erste Weiche (W1) durch den Messbereich (M) {\"u}ber die zweite Weiche (W2) bis zum Auslassbereich (A) ausbilden und in einem zweiten Schaltzustand einen durchg{\"a}ngigen zweiten Materialdurchstr{\"o}mungsraum vom Einlassbereich (E) {\"u}ber die erste Weiche (W1) durch den Umlenkbereich (U) {\"u}ber die zweite Weiche (W2) bis zum Auslassbereich (A) ausbilden.}, language = {de} } @article{Oehler2018, author = {Oehler, Albrecht}, title = {Informationstechnische Standortverkabelung als grundlegende informationstechnische Infrastruktur : Einblick in die internationale Normierungsarbeit}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {197 -- 206}, year = {2018}, abstract = {In diesem Beitrag wird dargestellt, wie internationale Normierungsarbeit abl{\"a}uft. Dies erfolgt am Beispiel der Normung von informationstechnischer Standortverkabelung. Dort werden beispielsweise die Netzwerk-Kabelkategorien, wie Kat. 5, definiert.}, language = {de} } @article{Gschwinder2018, author = {Gschwinder, Joachim}, title = {Industrie 4.0 und Recht - ein {\"U}berblick}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {175 -- 196}, year = {2018}, abstract = {Der Beitrag gibt einen {\"U}berblick {\"u}ber die Zusammenh{\"a}nge zwischen Industrie 4.0 und Recht. Ausgangspunkt sind die vertragsrechtlichen Grundlagen mit den Fragen, ob und wie zwischen Maschinen {\"u}berhaupt Vertr{\"a}ge zustande kommen k{\"o}nnen, wie Industrie 4.0-Vertr{\"a}ge vertragstypologisch einzuordnen sind und welche Grenzen bei der Verwendung Allgemeiner Gesch{\"a}ftsbedingungen bestehen k{\"o}nnen. Anschließend werden die Themen dargestellt, die derzeit die Diskussion um das Haftungsrecht der Industrie 4.0 beherrschen. Im Rahmen des Datenrechts wird gekl{\"a}rt, wem Daten zustehen und wie der Datenschutz geregelt ist. Zudem wird aufgezeigt, welche rechtlichen Vorgaben zur Gew{\"a}hrleistung von IT-Sicherheit im Unternehmen bestehen. Schließlich werden auch arbeitsrechtliche Herausforderungen von Industrie 4.0 angesprochen, wie die zunehmende "Entbetrieblichung", das Aufkommen neuer Besch{\"a}ftigungsformen, die Forderung nach mehr Flexibilisierung der Arbeitswelt sowie Fragen des Mitbestimmungsrechts.}, language = {de} } @article{GeigerSteinbiss2018, author = {Geiger, Matthias and Steinbiß, Kristina}, title = {Vom Multivariantengesch{\"a}ftsmodell zur softwaregesteuerten Individualisierung im Auto}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {161 -- 174}, year = {2018}, abstract = {Die Welt dreht sich immer schneller. Etablierte Firmen, die sinnbildlich f{\"u}r innovative Produkte stehen, werden in kurzer Zeit vom Markt gedr{\"a}ngt und durch disruptive Ans{\"a}tze aus ihrem Gesch{\"a}ft verdr{\"a}ngt. Inkrementelle Ans{\"a}tze zur Verbesserung der Produktqualit{\"a}t, zur Reduktion von Herstellkosten und der Fokus auf die Produktionsoptimierung nach dem Individualisierungsprinzip (Losgr{\"o}ße 1) sind keine auf die Zukunft ausgerichtete Zielzust{\"a}nde f{\"u}r Automobilhersteller mehr. Neue Wettbewerber, seien es Softwaregiganten oder agile Startups, treten in den Markt ein. Die traditionelle Massenproduktion des Automotivbereichs kann den sich stetig ver{\"a}ndernden Kundenanforderungen nicht mehr l{\"a}nger gerecht werden. Dazu bedarf es Gesch{\"a}ftsmodell-Innovationen, wie beispielsweise digitale Preismodelle oder On-Demand Funktionalit{\"a}ten.}, language = {de} } @article{FroehlichSteinbiss2018, author = {Fr{\"o}hlich, Elisabeth and Steinbiß, Kristina}, title = {Lieferantenmanagement im Zeitalter der digitalen Transformation}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {149 -- 160}, year = {2018}, abstract = {Die {\"U}berlebensf{\"a}higkeit von Unternehmen am Markt wird vorrangig durch den Input ihrer Lieferanten getrieben, da dem Einkauf bis zu 50\% des prognostizierten Innovationspotenzials zugesprochen wird. Dabei gilt vor allem die digitale Transformation als wesentliche Voraussetzung, um die eigene Wettbewerbsf{\"a}higkeit langfristig zu sichern. Der vorliegende Beitrag setzt sich daher mit dem Digitalisierungspotenzial strategischer Lieferantenbeziehungen auseinander. Aufbauend auf einem konzeptionellen Modell des Einkaufs 4.0 werden dessen Erfolgstreiber analysiert. Neben der Optimierung von Einkaufsprozessen durch eProcurementl{\"o}sungen sollte der Fokus auf der Beziehungspflege zu Lieferanten liegen, um das Potenzial von Einkauf 4.0 vollst{\"a}ndig aussch{\"o}pfen zu k{\"o}nnen. Denn nur durch den Aufbau strategischer Wertsch{\"o}pfungspartnerschaften l{\"a}sst sich das Erfolgspotenzial des Einkaufs langfristig heben.}, language = {de} } @article{FallerHampaBitschetal.2018, author = {Faller, Stefan and Hampa, Marcus and Bitsch, G{\"u}nter and Hummel, Vera and Brenner, Beate}, title = {Shopfloor Management in der selbstgesteuerten Logistik-Lern-Fabrik}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {133 -- 147}, year = {2018}, abstract = {Gesellschaftliche und industrielle Trends im Zuge der Digitaliserung induzieren Ver{\"a}nderungsprozesse in der Industrie. Eine hohe Flexibilit{\"a}t und schnelle Entscheidungsfindungsprozesse stellen entscheidende Wettbewerbsvorteile f{\"u}r Unternehmen dar, um zuk{\"u}nftig erfolgreich am Markt agieren zu k{\"o}nnen. Um dies zu erm{\"o}glichen, m{\"u}ssen aggregierte Echtzeitdaten und Prognosen unmittelbar sowohl am Ort der Wertsch{\"o}pfung als auch dezentral zur Verf{\"u}gung stehen. Die Entscheidungsunterst{\"u}tzung mit Hilfe geeigneter Visualisierungen ist ein maßgeblicher Bestandteil von Shopfloor Management Systemen. Aufgrund der steigenden Anforderungen wurde das konventionelle und analoge Shopfloor Management in den letzten Jahren verst{\"a}rkt durch digitale L{\"o}sungen ersetzt. Ein ganzheitlicher Shopfloor Management Ansatz, der die Trends und die daraus resultierenden Herausforderungen f{\"u}r die Industrie abdeckt, ist aktuell nicht vorhanden. Zuk{\"u}nftige Shopfloor Management L{\"o}sungen sollen diese L{\"u}cke schließen. Hierf{\"u}r wurde ein ganzheitliches System entwickelt, welches Produktionsinformationen in Echtzeit unmittelbar am Shopfloor visualisiert, eine integrierte flexible Planung und Steuerung der Produktion beinhaltet sowie die Mitarbeiterbed{\"u}rfnisse ber{\"u}cksichtigt. Eine flexible und individuelle Schichtplanung durch die Mitarbeiter und eine umfassende automatische Beanspruchungsbeurteilung sind dazu integriert worden. Zudem erm{\"o}glicht das System die Prognose und Visualisierung von Produktionsinformationen und unterst{\"u}tzt die Anwender bei der Durchf{\"u}hrung strukturierter Shopfloor-Meetings. Dadurch werden Entscheidungen direkt auf den Ort der Wertsch{\"o}pfung verlagert.}, language = {de} } @article{EstlerHoefer2018, author = {Estler, Manfred and H{\"o}fer, Stephan}, title = {Der Einfluss der Digitalisierung auf zuk{\"u}nftige Unternehmens- und Produktionsstrukturen}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {123 -- 132}, year = {2018}, abstract = {Es wird erwartet, dass die neuen Technologien rund um die Digitalisierung von Gesellschaft und Gesch{\"a}ftswelt zu revolution{\"a}ren Ver{\"a}nderungen f{\"u}hren werden. Im Zusammenhang mit produzierenden Unternehmen ist hier von einer m{\"o}glichen vierten Revolution unter dem Stichwort "Industrie 4.0" die Rede. Eine Frage, die damit aber unmittelbar einhergeht, ist, ob sich infolge dieser Revolution auch Organisations- und Produktionsstrukturen von Unternehmen nicht ebenfalls revolution{\"a}r {\"a}ndern m{\"u}ssen. Dieser Beitrag geht dieser Frage nach, indem er den momentanen Stand der wissenschaftlichen Diskussion zusammenfasst und anschließend bewertet.}, language = {de} } @article{AugustinDrexler2018, author = {Augustin, Harald and Drexler, Natalie}, title = {Produktionslogistikplanung mit einer morphologiegest{\"u}tzten Planungssystematik}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {111 -- 121}, year = {2018}, abstract = {An die Produktionslogistik werden komplexe Anforderungen gestellt, so dass eine systematische Vorgehensweise zu deren Planung erforderlich ist. Aufgrund der Abh{\"a}ngigkeiten in der Supply Chain muss die Produtkionslogistik immer vom Lieferanten beginnend geplant werden. Trotz der Vielfalt an Planungssystematiken bieten diese alle nur sehr wenig Unterst{\"u}tzung bei der Gestaltung der einzelnen Planungsobjekte in der Logistikkette an, sodass die Planung und L{\"o}sungsfindung h{\"a}ufig intuitiv erfolgt und sehr stark vom individuellen Erfahrungswissen des Logistikplaners abh{\"a}ngt. Im Folgenden wird eine Planungssystematik, die auf Morphologien basiert, vorgestellt, die eine durchg{\"a}ngige Planung von Produktionslogistiksystemen erm{\"o}glicht und den Planer umgfangreich mit Informationen zu Gestaltungsm{\"o}glichkeiten und praktischen Umsetzungen unterst{\"u}tzt.}, language = {de} } @article{Augustin2018, author = {Augustin, Harald}, title = {Planungsvorgehen f{\"u}r die Digitale Fabrikplanung im Kontext der Digitalen Fabrik}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {99 -- 109}, year = {2018}, abstract = {Die Digitalisierung vr{\"a}ndert die Arbeitsweisen in Unternehmen und damit auch bei der Planung von Fabriken. Am Markt verf{\"u}gbar sind vielf{\"a}ltige Soft- und Hardwaresysteme f{\"u}r die Digitale Fabrik, die die Fabrikplanung unterst{\"u}tzen und teilweise revolutionieren k{\"o}nnen. Um dieses Potential zu nutzen, muss aber bekannt sein, was diese Systeme k{\"o}nnen und wie sie sinnvoll genutzt werden k{\"o}nnen. Bisherige Fabrikplanungssystematiken haben hierzu keine Unterst{\"u}tzung angeboten, da sie nur das generelle Vorgehen der Fabrikplanung beschreiben, ohne den Zusammenhang zu den sich rasch entwickelnden Soft- und Hardwaresystemen herzustellen. Im Folgenden wird die Entwicklung und Umsetzung eines Planungsvorgehens f{\"u}r die Digitale Fabrikplanung dargestellt, das die Potentiale der Soft- und Hardwaresysteme f{\"u}r die Digitale Fabrik aufgreift und in ein passendes Planungsvorgehensmodell integriert.}, language = {de} } @article{VogtMulyonoHummeletal.2018, author = {Vogt, Raphael and Mulyono, Nur Budi and Hummel, Vera and Schuhmacher, Jan}, title = {Potential of current digital technologies in the intralogistics sector for SMEs}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {79 -- 95}, year = {2018}, abstract = {The level of automation in intralogistics has steadily increased over recent years. For small and medium-sized enterprises (SMEs), however, the associated digital change is a major challenge. Since most SMEs are facing increasing sales volumes (e.g. due to e-commerce and good overall economy) in combination with decreasing lot sizes due to the market demand for individualized products, SMEs have to find innovative solutions to cope with these challenges in production as well as in logistics. Innovative technologies, like 3D printing technologies for the production for small lot sizes and future-oriented intralogistics technologies can serve as enablers in logistics to realize flexible logistic processes for increasing market requiremments. Considering that, this paper examines innovative and future-oriented technologies for intralogistics such as smart containers, driverless forklift systems, data glasses, smart shelves and smart pallets regarding their potential for SMEs. This explorative research paper shows that digital technologies are already suitable and available for SMEs.However, challenges are still seen in areas like the identification and digitalization potential and the financing of these new projects. The primary reason escpecially for SMEs for this is that they have to make investments based on an economically feasible payback period and less based on prestigious reasons like digitalization flagship projecs done by large corporations. In addition, the identification of feasible starting points for digitalization within intralogistic systems embedded in specific factory processes is a major challenge not only for SMEs.}, language = {en} } @article{UrruBoniniEchelmeyer2018, author = {Urru, Augusto and Bonini, Marco and Echelmeyer, Wolfgang}, title = {Mitigating the risk for technology related investments in logistics : the STIC analysis as a decision support tool}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {65 -- 77}, year = {2018}, abstract = {The success of an autonomous robotic system is influenced by several not easily identifiable interdependent factors. This paper is set to lay the foundation of an integrated approach in order to examine all the parameters and understand their contribution to success. After introducing the problem, two autonomous systems for the process of unloading of containers are presented. Then a recently developed method for modelling and interpreting all the parameters, the STIC analysis, are introduced. The preliminary results of applying such a methodology to a first study case is shortly presented. Future research is in the end recommended in order to prove that this methodology is the only way to overcome barriers to the investment in autonomous systems in the logistics sector.}, language = {en} } @article{Reichenberger2018, author = {Reichenberger, Volker}, title = {On the selection of machine learning models}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {55 -- 63}, year = {2018}, abstract = {The increased availability of data gives rise to the use of machine learning methods for purposes like forecasting or quality control in operations management. Practitioners who want to employ these methods are faced with the task of choosing from a large number of available methods. We give an overview of classification methods and available implementations and present considerations for choosing appropriate methods.}, language = {en} } @article{GregerMulyonoHermannetal.2018, author = {Greger, Marius and Mulyono, Nur Budi and Hermann, Julian and Palm, Daniel}, title = {Digital twins in the smart factory}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {41 -- 54}, year = {2018}, abstract = {What does the factory of tomorrow have to offer for companies? This question and its aspects are the focus of many actual articles and publications. According to Gartner digital twins, one of 2017 strategic technology trends will play a big role for the future of manufacturing. At the moment digital twins are gaining more importance for the industrial application. If companies want to be competitive in the future they have to implement the digital twin in the factories of today. Therefore this paper provides a basic overview of the concept of the smart factory and its requirements. In addition, digital twins are identified as a necessary concept for the evolution of the factory of today.}, language = {en} } @article{GaedeRanzHummeletal.2018, author = {Gaede, Christopher and Ranz, Fabian and Hummel, Vera and Echelmeyer, Wolfgang}, title = {A study on challenges in the implementation of human-robot collaboration}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {29 -- 39}, year = {2018}, abstract = {While academia and industry see large potential for human-robot collaboration (HRC), only a small number of realized HRC application is currently found in industry. To gather more data about current hindrances to wider implementation of collaborative robots, a study among 15 robot manufactureres and 14 system integrators of collaborative robot technology has been conducted through a predesigned questionnaire procedure. Additionally, five industrial users of human-robot collaboration have been interviewed on the main challenges they experienced during the initial implementation process. The quantitative data has been analyzed using the Wilcoxon-Signed-Rank-Test. Accoring to the study participants, the main challenges within the implementation currently are the identification of HRC-suitable processes, the application of relevant safety norms (such as ISO 10218, ISO/TS 15066) and the application-individual risk assessment.}, language = {en} } @article{BraunKleineMoellhoffReichenbergeretal.2018, author = {Braun, Anja and Kleine-M{\"o}llhoff, Peter and Reichenberger, Volker and Seiter, Stephan}, title = {Tools, methods and standards for the assessment of material effiiciency aspects in small and medium sized enterprises (SMEs)}, series = {Journal of engineering, management and operations}, volume = {1}, journal = {Journal of engineering, management and operations}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {1 -- 27}, year = {2018}, abstract = {Mature economies which are driven mainly by small and medium sized enterprises (SMEs) are increasingly becoming dependent on material imports. Global material consumption is ever increasing, mainly driven by population increases. Decoupling of material consumption from economic growth is one of the greatest challenges of the 21st century. Within this paper available methods for the assessment of material efficiency on different economic scales are investigated and those detected that are particulary suitable for the use in SMEs. Recommendations for further improvements of the selected tools and an outlook concerning planned research activities in the field of material efficiency in enterprises, supply chains and circular economy aspects are given.}, language = {en} } @misc{OPUS4-2302, title = {Journal of engineering, management and operations ; Vol. 1}, volume = {1}, editor = {Bauer, Wilhelm and Sihn, Wilfried and Ohlhausen, Peter}, publisher = {LIT}, address = {Wien}, isbn = {978-3-643-99768-5}, pages = {206}, year = {2018}, abstract = {Die Zeitschrift pr{\"a}sentiert Ergebnisse aus der angewandten Forschung und Grundlagenforschung mit Schwerpunkten in den Bereichen Operations, Logistik, Produktentstehung, Industrie 4.0.}, language = {en} } @article{KehrerBlochinger2019, author = {Kehrer, Stefan and Blochinger, Wolfgang}, title = {Elastic parallel systems for high performance cloud computing: state-of-the-art and future directions}, series = {Parallel processing letters}, volume = {29}, journal = {Parallel processing letters}, number = {2}, publisher = {World Scientific}, address = {New Jersey}, issn = {0129-6264}, doi = {10.1142/S0129626419500063}, pages = {Aufsatz 1950006}, year = {2019}, abstract = {With on-demand access to compute resources, pay-per-use, and elasticity, the cloud evolved into an attractive execution environment for High Performance Computing (HPC). Whereas elasticity, which is often referred to as the most beneficial cloud-specific property, has been heavily used in the context of interactive (multi-tier) applications, elasticity-related research in the HPC domain is still in its infancy. Existing parallel computing theory as well as traditional metrics to analytically evaluate parallel systems do not comprehensively consider elasticity, i.e., the ability to control the number of processing units at runtime. To address these issues, we introduce a conceptual framework to understand elasticity in the context of parallel systems, define the term elastic parallel system, and discuss novel metrics for both elasticity control at runtime as well as the ex post performance evaluation of elastic parallel systems. Based on the conceptual framework, we provide an in depth analysis of existing research in the field to describe the state-of-the art and compile our findings into a research agenda for future research on elastic parallel systems.}, language = {en} } @article{WochnerHackbarthHoffmannetal.2019, author = {Wochner, Jonathan and Hackbarth, Andr{\´e} and Hoffmann, Justus and L{\"o}bbe, Sabine}, title = {E-Mobilit{\"a}t: wie attraktiv sind welche Gesch{\"a}ftsmodelle kommunaler EVU?}, series = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt}, volume = {69}, journal = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt}, number = {5}, publisher = {EW Medien und Kongresse GmbH}, address = {Berlin}, issn = {0013-743X}, pages = {15 -- 18}, year = {2019}, abstract = {Um die {\"o}kologischen und {\"o}konomischen Potenzaile der Elektromobilit{\"a}t zu nutzen, setzen kommunale Energieversorger heute auf das Betreiben {\"o}ffentlicher Ladestationen, den Handel mit Ladestationen und das Bereitstellen spezieller Elektromobilit{\"a}tstarife; ebenso auf elektrifiziertes Carsharing oder das Vermieten elektrifizierter Fahrzeuge und den Betrieb elektrifizierter Omnibusse im {\"O}PNV. Auch die Entwicklung und Planung individueller Elektromobilit{\"a}tskonzepte, teils in Kombination mit Photovoltaikanlage, geh{\"o}ren in einigen Unternehmen zum Portfolio. F{\"u}r die Zukunft sollten Stadtwerke ihre Aktivit{\"a}ten im Bereich Elektromobilit{\"a}t an individuell definierten Zielen und Strategien ausrichten.}, language = {de} } @article{Kneip2019, author = {Kneip, Petra}, title = {Candidate experience}, series = {Das Wirtschaftsstudium : wisu ; Zeitschrift f{\"u}r Ausbildung, Pr{\"u}fung, Berufseinstieg und Fortbildung}, volume = {48}, journal = {Das Wirtschaftsstudium : wisu ; Zeitschrift f{\"u}r Ausbildung, Pr{\"u}fung, Berufseinstieg und Fortbildung}, number = {5}, publisher = {Lange}, address = {D{\"u}sseldorf}, issn = {0340-3084}, pages = {553 -- 555}, year = {2019}, language = {de} } @article{KneipGoeddeke2018, author = {Kneip, Petra and G{\"o}ddeke, Anna}, title = {Heuristiken und kognitive Verzerrungen}, series = {Das Wirtschaftsstudium : wisu ; Zeitschrift f{\"u}r Ausbildung, Pr{\"u}fung, Berufseinstieg und Fortbildung}, volume = {47}, journal = {Das Wirtschaftsstudium : wisu ; Zeitschrift f{\"u}r Ausbildung, Pr{\"u}fung, Berufseinstieg und Fortbildung}, number = {11}, publisher = {Lange}, address = {D{\"u}sseldorf}, issn = {0340-3084}, pages = {1216 -- 1217}, year = {2018}, language = {de} } @misc{BaeuerleLorenzMannhardtetal.2018, author = {B{\"a}uerle, Tim and Lorenz, G{\"u}nter and Mannhardt, Joachim and Ostertag, Edwin and Rebner, Karsten}, title = {Vorrichtung und Verfahren zur Analyse eines Materialstroms}, pages = {20}, year = {2018}, abstract = {Die Erfindung betrifft eine Vorrichtung und Verfahren zur Analyse eines Materialstroms S mit einem Einlassbereich E, einem Messbereich M und einen Auslassbereich A sowie mit einer ersten Weiche W1 und einer zweiten Weiche W2 und einem Umlenkbereich U, wobei die beiden Weichen W1, W2 in einem ersten Schaltzustand Z1 einen durchg{\"a}ngigen ersten Materialdurchstr{\"o}mungsraum vom Einlassbereich E {\"u}ber die erste Weiche W1 durch den Messbereich M {\"u}ber die zweite Weiche W2 bis zum Auslassbereich A ausbilden und in einem zweiten Schaltzustand einen durchg{\"a}ngigen zweiten Materialdurchstr{\"o}mungsraum vom Einlassbereich E {\"u}ber die erste Weiche W1 durch den Umkenkbereich U {\"u}ber die zweite Weiche W2 bis zum Auslassbereich A ausbilden.}, language = {de} } @misc{BaeuerleLorenzMannhardtetal.2018, author = {B{\"a}uerle, Tim and Lorenz, G{\"u}nter and Mannhardt, Joachim and Ostertag, Edwin and Rebner, Karsten}, title = {Apparatus and method for analyzing a flow of material}, pages = {19}, year = {2018}, abstract = {An apparatus and method for analyzing a flow of material having an inlet region, a measurement range and an outlet region, and having a first diverter and a second diverter, and a deflection area, wherein in a first state of operation, the two diverters form a continuous first material flow space from the inlet region via the first diverter through the measurement range, via the second diverter to the outlet region, and in a second state of operation, form a continuous second material flow space from the inlet region via the first diverter through the deflection area, via the second diverter to the outlet region.}, language = {en} } @inproceedings{WeberTryputenDanneretal.2018, author = {Weber, Thomas and Tryputen, Sergii and Danner, Michael and Braun, Sascha and Schreve, Kristiaan and R{\"a}tsch, Matthias}, title = {Follow Me: real-time in the wild person tracking application for autonomous robotics}, series = {RoboCup 2017: Robot World Cup XXI. -(Lecture notes in artificial intelligence ; 11175)}, booktitle = {RoboCup 2017: Robot World Cup XXI. -(Lecture notes in artificial intelligence ; 11175)}, editor = {Akiyama, Hidehisa}, publisher = {Springer International Publishing}, address = {Cham}, isbn = {978-3-030-00308-1}, doi = {10.1007/978-3-030-00308-1_13}, pages = {156 -- 167}, year = {2018}, abstract = {In the last 20 years there have been major advances in autonomous robotics. In IoT (Industry 4.0), mobile robots require more intuitive interaction possibilities with humans in order to expand its field of applications. This paper describes a user-friendly setup, which enables a person to lead the robot in an unknown environment. The environment has to be perceived by means of sensory input. For realizing a cost and resource efficient Follow Me application we use a single monocular camera as low-cost sensor. For efficient scaling of our Simultaneous Localization and Mapping (SLAM) algorithm, we integrate an inertial measurement unit (IMU) sensor. With the camera input we detect and track a person. We propose combining state of the art deep learning with Convolutional Neural Network (CNN) and SLAM algorithms functionality on the same input camera image. Based on the output robot navigation is possible. This work presents the specification, workflow for an efficient development of the Follow Me application. Our application's delivered point clouds are also used for surface construction. For demonstration, we use our platform SCITOS G5 equipped with the afore mentioned sensors. Preliminary tests show the system works robustly in the wild.}, language = {en} } @inproceedings{TryputenGopalWeberetal.2018, author = {Tryputen, Sergii and Gopal, Atmaraaj and Weber, Thomas and H{\"o}fert, Christian and R{\"a}tsch, Matthias and Schreve, Kristiaan}, title = {Methodology to analyze the accuracy of 3D objects reconstructed with collaborative robot based monocular LSD-SLAM}, series = {Advancing the frontier of intelligent autonomous systems : proceedings 2018 International Conference on Intelligent Autonomous Systems (ICoIAS 2018), March 1-3, 2018, Singapore}, booktitle = {Advancing the frontier of intelligent autonomous systems : proceedings 2018 International Conference on Intelligent Autonomous Systems (ICoIAS 2018), March 1-3, 2018, Singapore}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-6331-8}, doi = {10.1109/ICoIAS.2018.8494109}, pages = {185 -- 190}, year = {2018}, abstract = {SLAM systems are mainly applied for robot navigation while research on feasibility for motion planning with SLAM for tasks like bin-picking, is scarce. Accurate 3D reconstruction of objects and environments is important for planning motion and computing optimal gripper pose to grasp objects. In this work, we propose the methods to analyze the accuracy of a 3D environment reconstructed using a LSD-SLAM system with a monocular camera mounted onto the gripper of a collaborative robot. We discuss and propose a solution to the pose space conversion problem. Finally, we present several criteria to analyze the 3D reconstruction accuracy. These could be used as guidelines to improve the accuracy of 3D reconstructions with monocular LSD-SLAM and other SLAM based solutions.}, language = {en} } @inproceedings{SteinmetzerBoenningerPriwitzeretal., author = {Steinmetzer, Tobias and B{\"o}nninger, Ingrid and Priwitzer, Barbara and Reinhardt, Fritjof and Reckhardt, Markus Christoph and Erk, Dorela}, title = {Clustering of Human gait with Parkinson's disease by using Dynamic Time Warping}, series = {2018 IEEE International Work Conference on Bioinspired Intelligence : proceedings : July 18-20, 2018, Instituto Tecnol{\´o}gico de Costa Rica, San Carlos, Costa Rica}, booktitle = {2018 IEEE International Work Conference on Bioinspired Intelligence : proceedings : July 18-20, 2018, Instituto Tecnol{\´o}gico de Costa Rica, San Carlos, Costa Rica}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-7506-9}, doi = {10.1109/IWOBI.2018.8464203}, pages = {6}, abstract = {We present a new method for detecting gait disorders according to their stadium using cluster methods for sensor data. 21 healthy and 18 Parkinson subjects performed the time up and go test. The time series were segmented into separate steps. For the analysis the horizontal acceleration measured by a mobile sensor system was considered. We used dynamic time warping and hierarchical custering to distinguish the stadiums. A specificity of 92\% was achieved.}, language = {en} } @techreport{Ostertag2018, type = {Working Paper}, author = {Ostertag, Edwin}, title = {Vom Rohstoff zum Verbraucher : aktuelle Konzepte zur R{\"u}ckverfolgbarkeit in der Lebensmittelwirtscaft und ihre betriebliche Umsetzung}, publisher = {CERN Data Centre}, address = {Meyrin, Schweiz}, doi = {10.5281/zenodo.1283848}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22548}, pages = {15}, year = {2018}, abstract = {Auf jeder Stufe der Lebensmittelkette muss von der Herstellung bis zum Inverkehrbringen eine R{\"u}ckverfolgung der Produkte m{\"o}glich sein. Erzeuger, Verarbeiter, Transportunternehmen und H{\"a}ndler stehen vor der Herausforderung, Systeme zur R{\"u}ckverfolgbarkeit effizient in ihre Unternehmensprozesse zu integrieren und gegenseitig zu vernetzen. F{\"u}r die betriebliche Umsetzung werden die rechtlichen Anforderungen skizziert und die Grundlagen eines R{\"u}ckverfolgbarkeitssystems vorgestellt.}, language = {de} } @article{SchuhmacherKuss2018, author = {Schuhmacher, Alexander and Kuss, Michael}, title = {The future of pharma R\&D : how external innovation changes pharma R\&D}, series = {Pharma focus Asia : magazine for the pharmaceutical industry leaders}, volume = {32}, journal = {Pharma focus Asia : magazine for the pharmaceutical industry leaders}, publisher = {Ochre Media}, address = {Secunderabad, Telangana, India}, pages = {14 -- 19}, year = {2018}, abstract = {Research and Development (R\&D) is crucial for the growth and future success of research-based pharma companies. To maintain their R\&D organisations efficient, pharmaceutical companies started to hedge the potential of open innovation to cut R\&D costs and to access external knowledge. These new strategies could be divided into several categories: open source, innovation centres, crowd sourcing and virtual R\&D.}, language = {en} } @inproceedings{KittlerKoppenKoppetal.2018, author = {Kittler, Josef and Koppen, Paul and Kopp, Philipp and Huber, Patrik and R{\"a}tsch, Matthias}, title = {Conformal mapping of a 3D face representation onto a 2D image for CNN based face recognition}, series = {2018 International Conference on Biometrics : ICB 2018 : Gold Coast, Queensland, Australia, 20-23 February 2018, proceedings}, booktitle = {2018 International Conference on Biometrics : ICB 2018 : Gold Coast, Queensland, Australia, 20-23 February 2018, proceedings}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-4285-6}, doi = {10.1109/ICB2018.2018.00029}, pages = {124 -- 131}, year = {2018}, abstract = {Fitting 3D Morphable Face Models (3DMM) to a 2D face image allows the separation of face shape from skin texture, as well as correction for face expression. However, the recovered 3D face representation is not readily amenable to processing by convolutional neural networks (CNN). We propose a conformal mapping from a 3D mesh to a 2D image, which makes these machine learning tools accessible by 3D face data. Experiments with a CNN based face recognition system designed using the proposed representation have been carried out to validate the advocated approach. The results obtained on standard benchmarking data sets show its promise.}, language = {en} } @article{SchmaehSchneiderSchumacheretal.2019, author = {Schm{\"a}h, Marco and Schneider, Kristina and Schumacher, Alexander and J{\"a}ger, Kirsten and Betz, Armin}, title = {State of the art und best practice der customer journey}, series = {Marketing review St. Gallen : die neue Thexis-Marketingfachzeitschrift f{\"u}r Theorie und Praxis}, journal = {Marketing review St. Gallen : die neue Thexis-Marketingfachzeitschrift f{\"u}r Theorie und Praxis}, number = {3}, publisher = {Thexis Verlag}, address = {St. Gallen}, issn = {0254-9697}, pages = {54 -- 62}, year = {2019}, abstract = {Die Auswirkungen der digitalen Revolution sind vielf{\"a}ltig. So gibt es inzwischen immer ausgefeiltere M{\"o}glichkeiten, um mit Kunden in den Dialog zu treten. Unternehmen stehen deshalb vor der Herausforderung, die verschiedenen Kan{\"a}le und Kontaktpunkte mit ihren Kunden systematisch zu managen. Im Mittelpunkt steht dabei der Informations- und Entscheidungsprozess des Kunden - die Customer Journey. Sie gilt im Marketing als K{\"o}nigsdisziplin, bei der es darum geht, wie man am besten die "Reise des Kunden" erfasst, um Zielgruppen genau an der richtigen Stelle anzusprechen und Budgets gezielt in bestimmte Kan{\"a}le zu steuern. Marketing- und Vertriebsverantwortliche m{\"u}ssen sich daher Folgendes fragen: Was erwartet der Endkunde an den verschiedenen Touchpoints und wie sieht seine Customer Journey aus? Wie werden Unternehmen diesen Anforderungen gerecht?}, language = {de} } @article{NovoselBorchersKlugeretal.2019, author = {Novosel, Esther and Borchers, Kirsten and Kluger, Petra and Mantalaris, Athanasios and Matheis, Georg and Pistolesi, Massimo and Schneider, J{\"o}rg and Wenz, Annika}, title = {New approaches to respiratory assist: bioengineering an ambulatory, miniaturized bioartificial lung}, series = {ASAIO Journal}, volume = {65}, journal = {ASAIO Journal}, number = {5}, publisher = {Lippincott Williams \& Wilkins}, address = {Philadelphia, Pa.}, issn = {1058-2916}, doi = {10.1097/MAT.0000000000000841}, pages = {422 -- 429}, year = {2019}, abstract = {Although state-of-the-art treatments of respiratory failure clearly have made some progress in terms of survival in patients suffering from severe respiratory system disorders, such as acute respiratory distress syndrome (ARDS), they failed to significantly improve the quality of life in patients with acute or chronic lung failure, including severe acute exacerbations of chronic obstructive pulmonary disease or ARDS as well. Limitations of standard treatment modalities, which largely rely on conventional mechanical ventilation, emphasize the urgent, unmet clinical need for developing novel(bio)artificial respiratory assist devices that provide extracorporeal gas exchange with a focus on direct extracorporeal CO2 removal from the blood. In this review, we discuss some of the novel concepts and critical prerequisites for such respiratory lung assist devices that can be used with an adequate safety profile, in the intensive care setting, as well as for long-term domiciliary therapy in patients with chronic ventilatory failure. Specifically, we describe some of the pivotal steps, such as device miniaturization, passivation of the blood-contacting surfaces by chemical surface modifications, or endothelial cell seeding, all of which are required for converting current lung assist devices into ambulatory lung assist device for long-term use in critically ill patients. Finally, we also discuss some of the risks and challenges for the long-term use of ambulatory miniaturized bioartificial lungs.}, language = {en} } @article{SchallehnSeuringStraehleetal.2019, author = {Schallehn, Holger and Seuring, Stefan and Str{\"a}hle, Jochen and Freise, Matthias}, title = {Customer experience creation for after-use products: a product-service systems-based review}, series = {Journal of cleaner production}, volume = {210}, journal = {Journal of cleaner production}, publisher = {Elsevier Science}, address = {Amsterdam}, issn = {0959-6526}, doi = {10.1016/j.jclepro.2018.10.292}, pages = {929 -- 944}, year = {2019}, abstract = {For the widespread establishment of a circular economy, the acceptance of used products among consumers is a prerequisite. This paper investigates the customer experience of product service systems related to used products (PSSuP), such as renting, remanufacturing, and second-hand models, and aims to point out the offering characteristics that effect customer response and customer engagement. This study was conducted by means of a content analysis-based literature review of 69 empirical PSSuP studies. A frequency analysis of the categories that determine customer experience creation was conducted, as well as a contingency analysis to reveal the interrelationship between these categories. On this basis, the different PSSuP types were compared, and four strategic orientations of customer experience creation in PSSuP are pointed out: price, confidence, convenience, and delight orientation. For each of these strategic orientations, supportive PSSuP offering characteristics are specified. Building on the findings of this study, theoretical and managerial implications for product-service systems marketing are pointed out, and the need for research on the role of information and communication technology as an enabler of customer experience creation in PSSuP is highlighted.}, language = {en} } @article{JansenTaschnerBeyer2018, author = {Jansen, Jan and Taschner, Andreas and Beyer, Hans-Martin}, title = {Supply chain finance in SMEs: a comparative study in the automotive sector in Germany and The Netherlands}, series = {Logistiek : tijdschrift voor toegepaste logistiek}, journal = {Logistiek : tijdschrift voor toegepaste logistiek}, number = {5}, publisher = {KennisDC Logistiek}, address = {Gelderland}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22513}, pages = {59 -- 81}, year = {2018}, abstract = {In this exploratory research eight suppliers in the automotive industry are interviewed to measure the application of supply chain finance instruments in their supply chain in the Netherlands and the region of South-West Germany. Current adoption levels and reasons for non adoption are discussed. Based on these indicative results, a set of hypotheses is suggested for further research. The theoretical base of this study is a conceptual model of Supply Chain Finance based on literature research and empirical research in the Netherlands.}, language = {en} } @inproceedings{GutbrodMuenchTichy2018, author = {Gutbrod, Matthias and M{\"u}nch, J{\"u}rgen and Tichy, Matthias}, title = {The Business Experiments Navigator (BEN): an approach for validating business models with experimentation}, series = {Conference proceedings ICE/IEEE ITMC : 2018 IEEE International Conference on Engineering, Technology and Innovation (ICE/ITMC) : Stuttgart, 17.06. - 20.06.2018}, booktitle = {Conference proceedings ICE/IEEE ITMC : 2018 IEEE International Conference on Engineering, Technology and Innovation (ICE/ITMC) : Stuttgart, 17.06. - 20.06.2018}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-1469-3}, doi = {10.1109/ICE.2018.8436389}, pages = {8}, year = {2018}, abstract = {Early reduction of risks in a startup or an innovation project is highly important. Appropriate means for risk reduction, such as testing business models with different kinds of experiments exist. However, deciding what to test and how to select the right test, is challenging for many startups and innovation projects. This article presents the so-called Business Experiments Navigator (BEN), a toolkit to assist startup and innovation processes. It compliments other tools such as the Business Model Canvas or the Lean Startup process. The main contribution of BEN is to bridge the gap between the riskiest assumptions of a business model and the multitude of available testing techniques by providing assumption templates. The Business Experiments Navigator has been validated in several workshops. Results show that it creates awareness among the workshop participants that a business model is based on assumptions which impose risks and need to be validated. Further, users of BEN were able to identify relevant assumptions and map different kinds of assumptions to appropriate testing techniques. The process applied in the workshops, as well as the assumption templates, helped the participants understand the main concepts and transfer their learnings, to their own business ideas.}, language = {en} } @article{WenzTjoengSchneideretal.2018, author = {Wenz, Annika and Tjoeng, Iva and Schneider, Isabelle and Kluger, Petra and Borchers, Kirsten}, title = {Improved vasculogenesis and bone matrix formation through coculture of endothelial cells and stem cells in tissue-specific methacryloyl gelatin-based hydrogels}, series = {Biotechnology \& bioengineering}, volume = {115}, journal = {Biotechnology \& bioengineering}, number = {10}, publisher = {Wiley}, address = {New York, NY}, issn = {0006-3592}, doi = {10.1002/bit.26792}, pages = {2643 -- 2653}, year = {2018}, abstract = {The coculture of osteogenic and angiogenic cells and the resulting paracrine signaling via soluble factors are supposed to be crucial for successfully engineering vascularized bone tissue equivalents. In this study, a coculture system combining primary human adiposederived stem cells (hASCs) and primary human dermal microvascular endothelial cells (HDMECs) within two types of hydrogels based on methacryloyl-modified gelatin (GM) as three-dimensional scaffolds was examined for its support of tissue specific cell functions. HDMECs, together with hASCs as supporting cells, were encapsulated in soft GM gels and were indirectly cocultured with hASCs encapsulated in stiffer GM hydrogels additionally containing methacrylate-modified hyaluronic acid and hydroxyapatite particles. After 14 days, the hASC in the stiffer gels (constituting the "bone gels") expressed matrix proteins like collagen type I and fibronectin, as well as bone-specific proteins osteopontin and alkaline phosphatase. After 14 days of coculture with HDMEC-laden hydrogels, the viscoelastic properties of the bone gels were significantly higher compared with the gels in monoculture. Within the soft vascularization gels, the formed capillary-like networks were significantly longer after 14 days of coculture than the structures in the control gels. In addition, the stability as well as the complexity of the vascular networks was significantly increased by coculture. We discussed and concluded that osteogenic and angiogenic signals from the culture media as well as from cocultured cell types, and tissue-specific hydrogel composition all contribute to stimulate the interplay between osteogenesis and angiogenesis in vitro and are a basis for engineering vascularized bone.}, language = {en} } @inproceedings{FengHuberKittleretal.2018, author = {Feng, Zhen-Hua and Huber, Patrik and Kittler, Josef and Hancock, Peter and Wu, Xiao-Jun and Zhao, Qijun and Koppen, Paul and R{\"a}tsch, Matthias}, title = {Evaluation of dense 3D reconstruction from 2D face images in the wild}, series = {13th IEEE International Conference on Automatic Face and Gesture Recognition : FG 2018 : 15 - 19 May 2018, Xi'an, China, proceedings}, booktitle = {13th IEEE International Conference on Automatic Face and Gesture Recognition : FG 2018 : 15 - 19 May 2018, Xi'an, China, proceedings}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-2335-0}, doi = {10.1109/FG.2018.00123}, pages = {780 -- 786}, year = {2018}, abstract = {This paper investigates the evaluation of dense 3D face reconstruction from a single 2D image in the wild. To this end, we organise a competition that provides a new benchmark dataset that contains 2000 2D facial images of 135 subjects as well as their 3D ground truth face scans. In contrast to previous competitions or challenges, the aim of this new benchmark dataset is to evaluate the accuracy of a 3D dense face reconstruction algorithm using real, accurate and high-resolution 3D ground truth face scans. In addition to the dataset, we provide a standard protocol as well as a Python script for the evaluation. Last, we report the results obtained by three state-of-the-art 3D face reconstruction systems on the new benchmark dataset. The competition is organised along with the 2018 13th IEEE Conference on Automatic Face \& Gesture Recognition.}, language = {en} } @phdthesis{Poschmann2018, author = {Poschmann, Peter}, title = {Multi-sensor multi-person tracking on a mobile robot platform}, address = {Freiberg}, pages = {1 -- 113}, year = {2018}, abstract = {Service robots need to be aware of persons in their vicinity in order to interact with them. People tracking enables the robot to perceive persons by fusing the information of several sensors. Most robots rely on laser range scanners and RGB cameras for this task. The thesis focuses on the detection and tracking of heads. This allows the robot to establish eye contact, which makes interactions feel more natural. Developing a fast and reliable pose invariant head detector is challenging. The head detector that is proposed in this thesis works well on frontal heads, but is not fully pose-invariant. This thesis further explores adaptive tracking to keep track of heads that do not face the robot. Finally, head detector and adaptive tracker are combined within a new people tracking framework and experiments show its effectiveness compared to a state-of the-art system.}, language = {en} } @article{ZhuLuRaetsch2018, author = {Zhu, Xin-juan and Lu, Haiqing and R{\"a}tsch, Matthias}, title = {An interactive clothing design and personalized virtual display system}, series = {Multimedia tools and applications : an international journal}, volume = {77}, journal = {Multimedia tools and applications : an international journal}, number = {20}, publisher = {Springer Science + Business Media B.V}, address = {Dordrecht}, issn = {1380-7501}, doi = {10.1007/s11042-018-5912-x}, pages = {27163 -- 27179}, year = {2018}, abstract = {An interactive clothing design and a personalized virtual display with user's own face are presented in this paper to meet the requirement of personalized clothing customization. A customer interactive clothing design approach based on genetic engineering ideas is analyzed by taking suit as an example. Thus, customers could rearrange the clothing style elements, chose available color, fabric and come up with their own personalized suit style. A web 3D customization prototype system of personalized clothing is developed based on the Unity3D and VR technology. The layout of the structure and functions combined with the flow of the system are given. Practical issues such as 3D face scanning, suit style design, fabric selection, and accessory choices are addressed also. Tests to the prototype system indicate that it could show realistic clothing and fabric effect and offer effective visual and customization experience to users.}, language = {en} } @article{VolzHackKluger2019, author = {Volz, Ann-Cathrin and Hack, Larissa and Kluger, Petra}, title = {A cellulose-based material for vascularized adipose tissue engineering}, series = {Journal of biomedical materials research. - Part B, Applied biomaterials}, volume = {107}, journal = {Journal of biomedical materials research. - Part B, Applied biomaterials}, number = {5}, publisher = {Wiley}, address = {Hoboken, NJ}, issn = {1552-4973}, doi = {10.1002/jbm.b.34235}, pages = {1431 -- 1439}, year = {2019}, abstract = {Artificial adipose tissue (AT) constructs are urgently needed to treat severe wounds, to replace removed tissue, or for the use as in vitro model to screen for potential drugs or study metabolic pathways. The clinical translation of products is mostly prevented by the absence of a vascular component that would allow a sustainable maintenance and an extension of the construct to a relevant size. With this study, we aimed to evaluate the suitability of a novel material based on bacterial cellulose (CBM) on the defined adipogenic differentiation of human adipose-derived stem cells (ASCs) and the maintenance of the received adipocytes (diffASCs) and human microvascular endothelial cells (mvECs) in mono- and coculture. A slight acceleration of adipogenic differentiation over regular tissue culture polystyrene (TCPS) was seen on CBM under defined conditions, whereas on the maintenance of the generated adipocytes, comparable effects were detected for both materials. CBM facilitated the formation of vascular like structures in monoculture of mvECs, which was not observed on TCPS. By contrast, vascular-like structures were detected in CBM and TCPS in coculture by the presence of diffASCs. Concluding, CBM represents a promising material in vascularized AT engineering with the potential to speed up and simplify the in vitro setup of engineered products.}, language = {en} } @article{Adam2019, author = {Adam, Marcus}, title = {Warum Mitarbeiter-Commitment so wichtig ist}, series = {Textile network. Deutsche Ausgabe}, journal = {Textile network. Deutsche Ausgabe}, number = {7-8}, publisher = {Meisenbach}, address = {Bamberg}, issn = {1612-5088}, pages = {8 -- 9}, year = {2019}, abstract = {Jeder weiß, dass die Textil- und Bekleidungsindustrie ein Nachhaltigkeitsproblem hat und es neuer L{\"o}sungsans{\"a}tze bedarf. Auch Konsumenten und deren Verhalten haben einen entscheidenden Einfluss auf die Erfolgsaussichten einer nachhaltigen Entwicklung. Welche Rolle und Bedeutung obliegt jedoch dem einzelnen Mitarbeiter in diesem Prozess? Und welche Handlungsmaßnahmen k{\"o}nnen daraus abgeleitet werden? Eine empirische Analyse von {\"u}ber 100 internationalen Bekleidungsunternehmen gibt Aufschluss.}, language = {de} } @article{VolzHackAtzingeretal.2018, author = {Volz, Ann-Cathrin and Hack, Larissa and Atzinger, Franziska and Kluger, Petra}, title = {Completely defined co-culture of adipogenic differentiated ASCs and microvascular endothelial cells}, series = {Alternatives to animal experimentation : ALTEX ; a quarterly journal for new paths in biomedical science}, volume = {35}, journal = {Alternatives to animal experimentation : ALTEX ; a quarterly journal for new paths in biomedical science}, number = {4}, publisher = {Springer}, address = {Heidelberg}, issn = {1868-596X}, doi = {10.14573/altex.1802191}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22418}, pages = {464 -- 476}, year = {2018}, abstract = {Vascularized adipose tissue models are in high demand as alternatives to animal models to elucidate the mechanisms of widespread diseases, screen for new drugs or assess drug safety levels. Animal-derived sera such as fetal bovine serum (FBS), which are commonly used in these models, are associated with ethical concerns, risk of contaminations and inconsistencies of their composition and impact on cells. In this study, we developed a serum-free, defined co culture medium and implemented it in an adipocyte/endothelial cell (EC) co culture model. Human adipose-derived stem cells were differentiated under defined conditions (diffASCs) and, like human microvascular ECs (mvECs), cultured in a defined co culture medium in mono-, indirect or direct co-culture for 14 days. The defined co-culture medium was superior when compared to mono-culture media and facilitated the functional maintenance and maturation of diffASCs including perilipin A expression, lipid accumulation, and also glycerol and leptin release. The medium also allowed mvEC maintenance, confirmed by the expression of CD31 and von Willebrand factor (vWF), and by acetylated low density lipoprotein (acLDL) uptake. Thereby, mvECs showed strong dependence on EC-specific factors. Additionally, mvECs formed vascular structures in direct co-culture with diffASCs. The completely defined co-culture system allows for the serum-free culture of adipocyte/EC co-cultures and thereby represents a valuable and ethically acceptable tool for the culture and study of vascularized adipose tissue models.}, language = {en} } @article{ShkarinaShkarinWeinhardtetal.2018, author = {Shkarina, Svetlana and Shkarin, Roman and Weinhardt, Venera and Melnik, Elizaveta and Vacun, Gabriele and Kluger, Petra and Loza, Kateryna and Epple, Matthias}, title = {3D biodegradable scaffolds of polycaprolactone with silicate-containing hydroxyapatite microparticles for bone tissue engineering: high-resolution tomography and in vitro study}, series = {Scientific reports}, volume = {8}, journal = {Scientific reports}, number = {Aufsatz 8907}, publisher = {Macmillan Publishers Limited}, address = {London}, issn = {2045-2322}, doi = {10.1038/s41598-018-27097-7}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22355}, pages = {1 -- 13}, year = {2018}, abstract = {To date, special interest has been paid to composite scaffolds based on polymers enriched with hydroxyapatite (HA). However, the role of HA containing different trace elements such as silicate in the structure of a polymer scaffold has not yet been fully explored. Here, we report the potential use of silicate-containing hydroxyapatite (SiHA) microparticles and microparticle aggregates in the predominant range from 2.23 to 12.40 μm in combination with polycaprolactone (PCL) as a hybrid scaffold with randomly oriented and well-aligned microfibers for regeneration of bone tissue. Chemical and mechanical properties of the developed 3D scaffolds were investigated with XRD, FTIR, EDX and tensile testing. Furthermore, the internal structure and surface morphology of the scaffolds were analyzed using synchrotron X-ray μCT and SEM. Upon culturing human mesenchymal stem cells (hMSC) on PCL-SiHA scaffolds, we found that both SiHA inclusion and microfiber orientation affected cell adhesion. The best hMSCs viability was revealed at 10 day for the PCL-SiHA scaffolds with well-aligned structure (~82\%). It is expected that novel hybrid scaffolds of PCL will improve tissue ingrowth in vivo due to hydrophilic SiHA microparticles in combination with randomly oriented and well-aligned PCL microfibers, which mimic the structure of extracellular matrix of bone tissue.}, language = {en} } @article{Tremml2019, author = {Tremml, Timo}, title = {Linking two worlds? Entrepreneurial orientation in public enterprises : a systematic review and research agenda}, series = {Annals of public and cooperative economics}, volume = {90}, journal = {Annals of public and cooperative economics}, number = {1}, publisher = {Wiley-Blackwell}, address = {Oxford}, issn = {1370-4788}, doi = {10.1111/apce.12214}, pages = {25 -- 51}, year = {2019}, abstract = {Contemporary public enterprises differ from their forebears. Today, they are more similar to private enterprises, receiving far more attention than previously, when privatization processes all over the world were in the spotlight. Furthermore, the broad research stream of entrepreneurship has so far neglected the consideration of public enterprises. To set a future research agenda, the author examines the dispersed literature using an integrative and organizing framework to identify major topics and research findings. This paper reviews articles that investigate the entrepreneurship in contemporary public enterprises. Despite the growing scholarly interest globally, this systematic literature review indicates there is no more than a loose connection between the literature streams of public entrepreneurship and corporate entrepreneurship. Specifically, the review shows that the multidimensional concept of entrepreneurial orientation has thus far been ignored, although autonomy plays a significant role in the literature review, namely in the context of the interference of the public owner. It also reveals other essential research gaps, such as the development of a modern theory of public enterprises. The linked research stream of public-sector corporate entrepreneurship offers a broad area of scholarly research and should encourage further investigation.}, language = {en} } @article{VolzKluger2018, author = {Volz, Ann-Cathrin and Kluger, Petra}, title = {Completely serum-free and chemically defined adipocyte development and maintenance}, series = {Cytotherapy}, volume = {20}, journal = {Cytotherapy}, number = {4}, publisher = {Elsevier}, address = {New York, NY}, issn = {1465-3249}, doi = {10.1016/j.jcyt.2018.01.004}, pages = {576 -- 588}, year = {2018}, abstract = {Background aims: In vitro engineered adipose tissue is in great demand to treat lost or damaged soft tissue or to screen for new drugs, among other applications.However, today most attempts depend on the use of animal-derived sera. To pave the way for the application of adipose tissue-engineered products in clinical trials or as reliable and robust in vitro test systems, sera should be completely excluded from the production process. In this study, we aimed to develop an in vitro adipose tissue model in the absence of sera and maintain its function long-term. Methods: Human adipose tissue-derived stem cells were expanded and characterized in a xeno- and serum-free environment. Adipogenic differentiation was induced using a completely defined medium. Developed adipocytes were maintained in a completely defined maturation medium for additional 28 days. In addition to cell-viability and adherence, adipocyte-specific markers such as perilipin A expression of leptin release were evaluated. Results: The defined differentiation medium enhanced cell adherence and lipid accumulation at a significant level compared with the corresponding negative control. The defined maturation medium also significantly supported cell adherence and functional adipocyte maturation during the long-term culture period. Conclusions: The process described here enables functional adipocyte generation and maintenance without the addition fo unknown or unimal-derived constituents, achieving an important milestone in the introduction of adipose tissue engineered products into clinical trials or in vitro screening.}, language = {en} } @article{SchmidKleinhansSchmidetal.2018, author = {Schmid, Franziska and Kleinhans, Claudia and Schmid, Freia and Kluger, Petra}, title = {Osteoclast formation within a Human co-culture system on bone material as an in vitro model for bone remodeling processes}, series = {Journal of functional morphology and kinesiology : JFMK}, volume = {3}, journal = {Journal of functional morphology and kinesiology : JFMK}, number = {1}, publisher = {MDPI}, address = {Basel}, issn = {2411-5142}, doi = {10.3390/jfmk3010017}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22329}, pages = {1 -- 16}, year = {2018}, abstract = {Bone remodeling can be mimicked in vitro by co-culture models. Based on bone cells, such co-cultures help to study synergistic morphological changes and the impact of materials and applied substances. Hence, we examined the formation of osteoclasts on bovine bone materials to prove the bone resorption functionality of the osteoclasts in three different co-culture set-ups using human monocytes (hMCs) and (I) human mesenchymal stem cells (hMSCs), (II) osteogenic differentiated hMSCs (hOBs), and (III) hOBs in addition of soluble monocyte-colony stimulating factor (M CSF) and cytokine receptor activator of NFkB ligand (RANKL).We detected osteoclast-specific actin morphology, as well as the expression of cathepsin K and CD51/61 in single cells in set-up II and in numerous cells in set-up III. Resorption pits on bone material as characteristic proof of functional osteoclasts were not found in set-up I and II, but we detected such resorption pits in set-up III. We conclude in co culture models without M-CSF and RANKL that monocytes can differentiate into osteoclasts that show the characteristic actin structures and protein expression. However, to receive functional bone resorbing osteoclasts in vitro, the addition of M-CSF and RANKL is needed. Moreover, we suggest the use of bone or bone-like materials for future studies evaluating osteoclastogenesis.}, language = {en} } @article{KuhrmannDieboldMuenchetal.2019, author = {Kuhrmann, Marco and Diebold, Philipp and M{\"u}nch, J{\"u}rgen and Tell, Paolo and Trektere, Kitija and McCaffery, Fergal and Garousi, Vahid and Felderer, Michael and Linssen, Oliver and Hanser, Eckhart and Prause, Christian}, title = {Hybrid software development approaches in practice : a European perspective}, series = {IEEE software}, volume = {36}, journal = {IEEE software}, number = {4}, publisher = {IEEE}, address = {Los Alamitos, Calif.}, issn = {0740-7459}, doi = {10.1109/MS.2018.110161245}, pages = {20 -- 31}, year = {2019}, abstract = {The surveyed companies applied hybrid development approaches to specific projects even when company-wide policies for process usage existed. These approaches emerged from the evolution of different work practices and were consistently used regardless of company size or industry sector.}, language = {en} } @article{BunnenbergRohlederScholzetal.2019, author = {Bunnenberg, Sebastian and Rohleder, Martin and Scholz, Hendrik and Wilkens, Marco}, title = {Jensen's alpha and the market-timing puzzle}, series = {Review of financial economics : RFE}, volume = {37}, journal = {Review of financial economics : RFE}, number = {2}, publisher = {Wiley}, address = {Hoboken, NJ}, issn = {1058-3300}, doi = {10.1002/rfe.1033}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22303}, pages = {234 -- 255}, year = {2019}, abstract = {Theory predicts that market-timing activities bias Jensen's alpha (JA). However, empirical studies have failed to find consistent evidence of this bias. We tackle this puzzle in a nested model analysis and show that the bias contains an exogenous market component that is unrelated to market-timing skill. In a comprehensive empirical analysis of US mutual funds, we find that the timing-induced bias in JA is mainly driven by this market component, which is uncorrelated with measured timing activities. Measures of total performance that allow for timing activities are virtually identical to JA, even if timing activities are present in the evaluated fund. Hence, we conclude that JA is a sufficient measure of total performance.}, language = {en} } @article{SuZhouDraghicietal.2018, author = {Su, Xueping and Zhou, Hangchi and Draghici, Viorel Petrut and R{\"a}tsch, Matthias}, title = {Face naming in news images via multiple instance learning and hybrid recurrent convolutional neural network}, series = {Journal of electronic imaging}, volume = {27}, journal = {Journal of electronic imaging}, number = {3}, publisher = {SPIE ; IS \& T}, address = {Bellingham, Wash.}, issn = {1017-9909}, doi = {10.1117/1.JEI.27.3.033036}, pages = {1 -- 26}, year = {2018}, abstract = {Annotations of subject IDs in images are very important as ground truth for face recognition applications and news retrieval systems. Face naming is becoming a significant research topic in news image indexing applications. By exploiting the uniqueness of name, face naming is transformed to the problem of multiple instance learning (MIL) with exclusive constraint, namely the eMIL problem. First, the positive bags and the negative bags are automatically annotated by a hybrid recurrent convolutional neural network and a distributed affinity propagation cluster. Next, positive instance selection and updating are used to reduce the influence of false-positive bag and to improve the performance. Finally, max exclusive density and iterative Max-ED algorithms are proposed to solve the eMIL problem. The experimental results show that the proposed algorithms achieve a significant improvement over other algorithms.}, language = {en} } @inproceedings{GatzastrasWranaWolferetal.2018, author = {Gatzastras, Athanasios and Wrana, Dominik and Wolfer, Tobias and Gl{\"a}ser, Georg and Saft, Benjamin and Sch{\"a}fer, Eric and Hennig, Eckhard}, title = {Design of quasi-synchronous finite state machines using a local on-demand clocking approach}, series = {Analog 2018 : meet your CAD guy, meet your designer : Beitr{\"a}ge der 16. GMM/ITG-Fachtagung, 13.-14. September 2018 in M{\"u}nchen, Neubiberg. - (GMM-Fachbericht ; 91)}, booktitle = {Analog 2018 : meet your CAD guy, meet your designer : Beitr{\"a}ge der 16. GMM/ITG-Fachtagung, 13.-14. September 2018 in M{\"u}nchen, Neubiberg. - (GMM-Fachbericht ; 91)}, publisher = {VDE Verlag GmbH}, address = {Berlin}, isbn = {978-3-8007-4754-2}, pages = {20 -- 24}, year = {2018}, abstract = {Nowadays robust, energy-efficient multisensor microsystems often come with heavily restricted power budgets and the characteristic of remaining in certain states for a longer period of time. During this time frame there is no continuous clock signal required which gives the opportunity to suspend the clock until a new transition is requested. In this paper, we present a new topology for on-demand locally clocked finite state machines. The architecture combines a local adaptive clocking approach with synchronous and asynchronous components forming a quasi synchronous system. Using adaptive and local clocking comes with the advantages of reducing the power consumption while saving design effort when no global clock tree is needed. Combining synchronous and asynchronous components is beneficial compared to previous fully asynchronous approaches concerning the design restrictions. The developed topology is verified by the implementation and simulation of a temperature-ADC sensor system realized in a 180 nm process.}, language = {en} } @inproceedings{WattenbergSchwalbePfost2019, author = {Wattenberg, Martin and Schwalbe, Ulf and Pfost, Martin}, title = {Single-stage LLC charger with PFC functionality and wide input voltage range}, series = {2019 IEEE Applied Power Electronics Conference and Exposition (APEC) , Mar 17, 2019 - Mar 21, 2019 Anaheim, CA}, booktitle = {2019 IEEE Applied Power Electronics Conference and Exposition (APEC) , Mar 17, 2019 - Mar 21, 2019 Anaheim, CA}, publisher = {IEEE}, address = {Piscataway, NJ}, doi = {10.1109/APEC.2019.8721966}, pages = {750 -- 756}, year = {2019}, abstract = {We present a compact battery charger topology for weight and cost sensitive applications with an average output current of 9A targeted for 36V batteries commonly found in electric bicycles. Instead of using a conventional boost converter with large DC-link capacitors, we accomplish PFC-functionality by shaping the charging current into a sin²-shape. In addition, a novel control scheme without input-current sensing is introduced. A-priori knowledge is used to implement a feed-forward control in combination with a closed-loop output current control to maintain the target current. The use of a full-bridge/half bridge LLC converter enables operation in a wide input-voltage range. A fully featured prototype has been built with a peak output power of 1050W. An average output power of 400W was measured, resulting in a power density of 1.8 kW/dm³. At 9A charging current, a power factor of 0.96 was measured and the efficiency exceeds 93\% on average with passive rectification. The impact of pulse charging has been evaluated on a 400Wh battery which was charged with the proposed converter as well as CC-CV-charging for reference. Both charging schemes show similar battery surface temperatures.}, language = {en} } @article{LuckeEinbergerScheletal.2019, author = {Lucke, Dominik and Einberger, Peter and Schel, Daniel and Luckert, Michael and Schneider, Matthias and Cuk, Emir and Bauernhansl, Thomas and Wieland, Matthias and Steimle, Frank and Mitschang, Bernhard}, title = {Implementation of the MIALinx integration concept for future manufacturing environments to enable retrofitting of machines}, series = {Procedia CIRP}, volume = {79}, journal = {Procedia CIRP}, editor = {Teti, Roberto}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2212-8271}, doi = {10.1016/j.procir.2019.02.084}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:rt2-opus4-22222}, pages = {596 -- 601}, year = {2019}, abstract = {Manufacturing has to adapt to changing situations in order to stay competitive.It demands a flexible and easy-to-use integration of production equipment and ICT systems. The contribution of this paper is the presentation of the implementation of the Manufacturing Integration Assistant (MIALinx). The integration steps range from integrating sensors over collecting and rule-based processing of sensor information to the execution of required actions. Furthermore, we describe the implementation of MIALinx by commissioning it in a manufacturing environment to retrofit legacy machines for Industrie 4.0. Finally, we validate the suitability of our approach by applying our solution in a medium-size company.}, language = {en} } @article{SchallehnSeuringStraehleetal.2019, author = {Schallehn, Holger and Seuring, Stefan and Str{\"a}hle, Jochen and Freise, Matthias}, title = {Defining the antecedents of experience co-creation as applied to alternative consumption models}, series = {Journal of service management}, volume = {30}, journal = {Journal of service management}, number = {2}, publisher = {Emerald}, address = {Bingley}, issn = {1757-5818}, doi = {10.1108/JOSM-12-2017-0353}, pages = {209 -- 251}, year = {2019}, abstract = {Purpose - The purpose of this paper is to propose a conceptual framework of experience co-creation that captures the multi-dimensionality of this construct, as well as a research process for defining of the antecedents of experience co-creation. Design/methodology/approach - The framework of experience co-creation was conceptualized by means of a literature review. Subsequently, this framework was used as the conceptual basis for a qualitative content analysis of 66 empirical papers investigating alternative consumption models (ACMs), such as renting, remanufacturing, and second-hand models. Findings - The qualitative content analysis resulted in 12 categories related to the consumer and 9 related to the ACM offerings that represent the antecedents of experience co-creation. These categories provide evidence that, to a large extent, the developed conceptual framework allows one to capture the multi-dimensionality of the experience co-creation construct. Research limitations/implications - This study underscores the understanding of experience co-creation as a function of the characteristics of the offering - which are, in turn, a function of the consumers' motives as determined by their lifeworlds - as well as to service design as an iterative approach to finding, creating and refining service offerings. Practical implications - The investigation of the antecedents of experience co-creation can enable service providers to determine significant consumer market conditions for forecasting the suitability and viability of their offerings and to adjust their service designs accordingly. Originality/value - This paper provides a step toward the operationalization of the dimension-related experience co creation construct and presents an approach to defining the antecedents of experience co-creation by considering different research perspectives that can enhance service design research.}, language = {en} } @incollection{FroehlichSteinbiss2019, author = {Fr{\"o}hlich, Elisabeth and Steinbiß, Kristina}, title = {Integration der „Sustainable Development Goals" in eine nachhaltige Supply Chain - der „Nachhaltige Beschaffungs-Case"}, series = {Nachhaltiges Beschaffungsmanagement : Strategien, Praxisbeispiele, Digitalisierung}, booktitle = {Nachhaltiges Beschaffungsmanagement : Strategien, Praxisbeispiele, Digitalisierung}, editor = {Wellbrock, Wanja}, publisher = {Springer Gabler}, address = {Wiesbaden}, isbn = {978-3-658-25188-8}, doi = {10.1007/978-3-658-25188-8_3}, pages = {37 -- 54}, year = {2019}, abstract = {Nachhaltige Managementmodelle sind auf Erf{\"u}llung der Triple Bottom Line ausgerichtet: Unternehmen adressieren Energie- und Co2-Effizienz ({\"o}kologisch), Arbeitsschutz oder Arbeitslosenquoten (sozial) sowie m{\"o}gliche Wachstumspotenziale, die durch Nachhaltigkeit zu erreichen sind, um das eigene {\"U}berleben des Unternehmens am Markt zu sichern ({\"o}konomisch). Daneben stehen die 17 Sustainable Development Goals (SDGs), die bis 2030 als Leitlinie nachhaltigen Wirtschaftens weltweit gelten und in nationale Gesetzgebung {\"u}berf{\"u}hrt wurden. Dieser Beitrag entwickelt ein Managementmodell, das Unternehmen dabei unterst{\"u}tzt, relevante SDGs zu identifizieren und Handlungsempfehlungen abzuleiten. Aufbauend auf einer nachhaltigen Supply Chain ordnet das Modell die SDGs den Dimensionen der Triple Bottom Line zu, um kurz eine Checkliste m{\"o}glicher zu ber{\"u}cksichtigender Nachhaltigkeitsmaßnahmen im Kontext des Behaviour Change Modells zu erarbeiten. Zur{\"u}ckgreifend auf die Empfehlungen der Vereinten Nationen wird ein nachhaltiger Managementansatz eingef{\"u}hrt, der Unternehmen dazu bef{\"a}higt, Governance, Transparenz und Engagement in ihrer Supply Chain zu implementieren.}, language = {de} }