@inproceedings{NayakSchulerSahaetal., author = {Nayak, Shravan and Schuler, Christian and Saha, Debjoy and Baumann, Timo}, title = {A Deep Dive Into Neural Synchrony Evaluation for Audio-visual Translation}, series = {ICMI '22, Proceedings of the 2022 International Conference on Multimodal Interaction: November 7 - 11 2022, Bengaluru India}, booktitle = {ICMI '22, Proceedings of the 2022 International Conference on Multimodal Interaction: November 7 - 11 2022, Bengaluru India}, editor = {Tumuluri, Raj and Sebe, Nicu and Pingali, Gopal}, publisher = {Association for Computing Machinery}, address = {New York}, isbn = {978-1-4503-9390-4}, doi = {10.1145/3536221.3556621}, pages = {642 -- 647}, abstract = {We present a comprehensive analysis of the neural audio-visual synchrony evaluation tool SyncNet. We assess the agreement of SyncNet scores vis-a-vis human perception and whether we can use these as a reliable metric for evaluating audio-visual lip-synchrony in generation tasks with no ground truth reference audio-video pair. We further look into the underlying elements in audio and video which vitally affect synchrony using interpretable explanations from SyncNet predictions and analyse its susceptibility by introducing adversarial noise. SyncNet has been used in numerous papers on visually-grounded text-to-speech for scenarios such as dubbing. We focus on this scenario which features many local asynchronies (something that SyncNet isn't made for).}, language = {en} } @inproceedings{OsinskiMottok, author = {Osinski, Lukas and Mottok, J{\"u}rgen}, title = {A Multicore Fault Tolerance Approach Based on Coded Processing}, series = {Embedded Real-Time Software and Systems Conference (ERST²), Jan 2018, Toulouse/France}, booktitle = {Embedded Real-Time Software and Systems Conference (ERST²), Jan 2018, Toulouse/France}, abstract = {Development trends for computing platforms moved from increasing the frequency of a single processor to increasing the parallelism with multiple cores on the same die. Multiple cores have strong potential to support cost-efficient fault tolerance due to their inherent spatial redundancy. This work makes a step towards software-only fault tolerance in the presence of permanent and transient hardware faults. Our approach utilizes software-based spatial triple modular redundancy and coded processing on a shared memory multi-core controller. We evaluate our approach on an Infineon AURIX TriBoard TC277 and provide experimental evidence for error resistance by fault injection campaigns with an iSystem iC5000 On-chip Analyzer.}, language = {en} } @article{HupfeldLaumerSticheletal., author = {Hupfeld, T. and Laumer, Tobias and Stichel, T. and Schuffenhauer, T. and Heberle, J. and Schmidt, M. and Barcikowski, S. and G{\"o}kce, B.}, title = {A new approach to coat PA12 powders with laser-generated nanoparticles for selective laser sintering}, series = {Procedia CIRP}, volume = {74}, journal = {Procedia CIRP}, publisher = {Elsevier}, doi = {10.1016/j.procir.2018.08.103}, pages = {244 -- 248}, abstract = {The modification of selective laser sintering (SLS) powder materials by nanoadditives offers the possibility to adapt the powder properties to the laser sintering process or the resulting part properties. To avoid agglomeration of the nanofiller, a new approach in which surfactant-free laser-generated colloidal nanoparticles are adsorbed onto the polymer surface directly in an aqueous solution is demonstrated. Based on this novel approach, polyamide 12 (PA12) powders are decorated with metal and oxide nanoparticles and processed via SLS. Electron microscopy and confocal laser scanning imaging are utilized to analyze the dispersion of the filler.}, language = {en} } @article{HaumerKralVukovicetal., author = {Haumer, Anton and Kral, Christian and Vukovic, Vladimir and David, Alexander and Hettfleisch, Christian and Huzsvar, Attila}, title = {A Parametrization Scheme for High Performance Thermal Models of Electric Machines using Modelica}, series = {IFAC Proceedings Volumes}, volume = {45}, journal = {IFAC Proceedings Volumes}, number = {2}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1474-6670}, doi = {10.3182/20120215-3-AT-3016.00187}, pages = {1058 -- 1062}, abstract = {Thermal models offer great advantages for enhancement of design, protection and control of electric machines. Detailed thermal models take a great number of time constants into account and provide accurate prediction of the temperatures. However, to parameterize such models detailed geometric data are needed. Whenever such detailed information is not available, or the performance of the detailed models is not satisfying, simplified thermal models as described in this paper are advantageous. The calculation of parameters is described in detail, in order to achieve best accordance with temperatures obtained from measurements or from simulations with detailed thermal models. Thermal resistances are calculated from end temperatures of a test run with constant load (and known losses). Thermal capacitances are obtained using optimization to minimize deviation of simulated and measured temperatures during the whole test run. The thermal model of an asynchronous induction machine with squirrel cage is coupled with an electrical model of the drive. For validation, simulation results of an optimally parameterized simplified model are compared with temperatures obtained by simulation of a detailed thermal model, which in turn has been validated against measurement results, both for continuous duty S1 and intermittent duty S6 (6 minutes no-load followed by 4 minutes of 140\% nominal load). The deviations are not more than 4 K which is quite satisfying.}, language = {en} } @article{BaryWestnerStrahringer, author = {Bary, Benedikt von and Westner, Markus and Strahringer, Susanne}, title = {Adding experts' perceptions to complement existing research on information systems backsourcing}, series = {International Journal of Information Systems and Project Management}, volume = {6}, journal = {International Journal of Information Systems and Project Management}, number = {4}, publisher = {SciKA}, issn = {2182-7788}, doi = {10.12821/ijispm060402}, pages = {17 -- 35}, abstract = {This paper extends the existing literature on information systems (IS) backsourcing by the perception of practitioners. For this purpose, we conducted a series of qualitative, semistructured interviews with IS sourcing experts. The interview questions focused on the participants' perceptions and experiences with the topic, on identifying reasons for and against IS backsourcing, and on revealing relevant trends pertinent to IS backsourcing. We then compared those findings with two previously conducted comprehensive literature reviews on academic and practitioner literature on IS backsourcing. By following this approach, we contribute to the existing research by verifying previous findings, for example, the most important reasons why companies decide in favor of IS backsourcing. Additionally, we were able to enhance previous contributions as we highlight the significance of differentiating between the scope of IS backsourcing by looking at the underlying services which are potentially backsourced. Further, we identified the importance of managers' personal preferences as an additional reason for IS backsourcing, for example, based on personal experiences or a perceived need for change. Based on our findings, we created a comprehensive overview of all aspects connected to the IS backsourcing process and derived opportunities for further research to contribute to the IS backsourcing research agenda.}, subject = {Betriebliches Informationssystem}, language = {en} } @misc{OPUS4-5529, title = {Akademische Weiterbildung f{\"u}r soziale Berufe}, series = {Theoretische, empirische und praktische Aspekte}, journal = {Theoretische, empirische und praktische Aspekte}, editor = {Sch{\"o}pf, Nicolas}, publisher = {wbv}, address = {Bielefeld}, isbn = {9783763966479}, doi = {10.3278/9783763966479}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-55292}, pages = {226}, abstract = {Akademische Weiterbildung im sozialen Bereich erfordert innovative Konzepte, die sich an der Lebenswirklichkeit der Studierenden orientieren. Berufsbegleitende Bachelorformate reagieren auf den Bedarf an grundst{\"a}ndiger akademischer Bildung, die Mischung von Pr{\"a}senz- und digitalen Lehr- und Lernformaten schafft Flexibilit{\"a}t im Studium und eine dezentrale Organisation erm{\"o}glicht wohnortnahe Pr{\"a}senzlehre in Kleingruppen, die durch Kooperation mit Sozialtr{\"a}gern in den Regionen erg{\"a}nzt wird. Ein Ansatz ist der berufsbegleitende Bachelorstudiengang Soziale Arbeit (BABS) an der OTH Regensburg, der sich mit einem grundst{\"a}ndigen Studienangebot an Erzieher:innen, Heilp{\"a}dagog:innen und Heilerziehungspfleger:innen richtet und neben anderen Modellen in diesem Sammelband untersucht wird. In Beitr{\"a}gen zu Theorie, Empirie und Praxis reflektieren die Autor:innen die Konzepte und schildern Erfahrungen mit berufsbegleitendem Studium im sozialen Bereich.}, subject = {Sozialberuf}, language = {de} } @article{JoblinMauerer, author = {Joblin, Mitchell and Mauerer, Wolfgang}, title = {An Interactive Survey Framework for Validation of Social Network Analysis}, series = {The R Journal}, volume = {8}, journal = {The R Journal}, number = {1}, pages = {149 -- 158}, abstract = {Abstract Social network analysis is extremely well supported by the R community and is routinely used for studying the relationships between people engaged in collaborative activities. While there has been rapid development of new approaches and metrics in this field, the challenging question of validity (how well insights derived from social networks agree with reality) is often difficult to address. We propose the use of several R packages to generate interactive surveys that are specifically well suited for validating social network analyses. Using our web-based survey application, we were able to validate the results of applying community-detection algorithms to infer the organizational structure of software developers contributing to open-source projects.}, language = {en} } @article{HerrmannZimmermann, author = {Herrmann, Frank and Zimmermann, J{\"u}rgen}, title = {Analyse und Konzeptionierung eines verteilten Systems zur Kommunikation von Betriebsdaten und Statistiken in Intralogistikanlagen}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik online}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik online}, number = {11}, publisher = {AKWI}, doi = {10.26034/lu.akwi.2020.3255}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-23090}, pages = {50 -- 59}, abstract = {Im vorliegenden Artikel werden Vorarbeiten zur Entwicklung eines Betriebsdatenverwaltungssystems f{\"u}r Intralogistikanlagen des Herstellers TGW Software Services beschrieben. Das beschriebene Vorgehen umfasst dabei im Wesentlichen vier Schritte. Zun{\"a}chst wird der aktuelle Stand in der Software des betrachteten Unternehmens hinsichtlich des Sammelns, Speicherns und Auswertens von Betriebsdaten analysiert. Daran schließt sich eine Anforderungsanalyse f{\"u}r die Betriebsdatenverwaltung an. Zusammen mit den betroffenen Entwicklungsleitern werden die grundlegenden Ziele und Grenzen der zu entwickelnden Betriebsdatenverwaltung definiert. Es werden Quellen von Anforderungen f{\"u}r die Komponente gesammelt und alle funktionalen und nichtfunktionalen Anforderungen anhand dieser Quellen erarbeitet. Basierend darauf wird ein erstes Modell erstellt, das die Entit{\"a}ten, Beziehungen und Abl{\"a}ufe, die sich aus den ermittelten funktionalen Anforderungen ergeben, in konsolidierter Form zusammenfasst. Dieses wird zusammen mit einigen {\"U}berlegungen, die zu diesem Modell gef{\"u}hrt haben, beschrieben. Zuletzt werden dann verschiedene m{\"o}gliche Konzepte zum grundlegenden technischen Aufbau einer Implementierung der Betriebsdatenverwaltung diskutiert, um schließlich anhand der definierten Qualit{\"a}tsziele eine Empfehlung f{\"u}r einen Konzeptvorschlag abzugeben.}, language = {de} } @article{Herrmann, author = {Herrmann, Frank}, title = {Analyse von L{\"o}sungsr{\"a}umen bei der Ressourcenbelegungsplanung}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik online}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik online}, number = {11}, publisher = {AKWI}, doi = {10.26034/lu.akwi.2020.3254}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-23079}, pages = {15 -- 32}, abstract = {Ressourcenbelegungsplanungsprobleme haben fast immer exponentiell wachsende L{\"o}sungsr{\"a}aume. Ausnahmen sind einfachste Ressourcenbelegungsplanungsprobleme die sich im wesentlichen durch Sortierverfahren optimal l{\"o}sen lassen. Dadurch sind Ressourcenbelegungsplanungsprobleme NP-vollst{\"a}ndig. Nach der Literatur haben L{\"o}sungsr{\"a}ume von einigen NP-vollst{\"a}ndigen Optimierungsproblemen g{\"u}nstige Eigenschaften, die Metaheuristiken, wie genetische Algorithmen und lokale Suche, ausnutzen, um in vertretbarer Rechenzeit gute L{\"o}sungen zu finden. Zu Ihrer Erkennung gibt es in der Literatur etablierte Analysem{\"o}glichkeiten. Sie werden in dieser Arbeit auf die Ressourcenbelegungsplanung {\"u}bertragen und ihre Wirkung bzw. die auftretenden Schwierigkeiten werden anhand von einfachen Problemen aufgezeigt.}, language = {de} } @article{KlenkGalka, author = {Klenk, Eva Marianne and Galka, Stefan}, title = {Analysis of real-time tour building and scheduling strategies for in-plant milk-run systems with volatile transportation demand}, series = {IFAC - PapersOnLine}, volume = {52}, journal = {IFAC - PapersOnLine}, number = {13}, publisher = {Elsevier}, doi = {10.1016/j.ifacol.2019.11.517}, pages = {2110 -- 2115}, abstract = {In modern manufacturing systems, milk run (MR) systems represent route-based, cyclic material-handling systems that are used widely and enable frequent deliveries of containerized parts in small lot sizes from a central storage area to multiple points of use on the factory floor. Usually, deliveries take place at predetermined, constant time intervals. As in real-world MR systems, the number of containers to deliver in each interval varies in the short term, peaks in the number of deliveries may lead to capacity bottlenecks and late deliveries. In this paper, we develop three alternative strategies to determine starting times of MR cycles in real-time based on the current number of delivery orders in the system aiming to better handle variations in the number of orders. We evaluate the three strategies for different system load scenarios with respect to delivery service levels, order lead times, systems utilization and necessary number of MR trains using a discrete-event simulation model.}, language = {en} } @misc{OPUS4-280, title = {Angewandte Forschung in der Wirtschaftsinformatik}, editor = {Barton, Thomas and Herrmann, Frank and Meister, Vera and M{\"u}ller, Christian and Seel, Christian and Steffens, Ulrike}, publisher = {mana-Buch}, address = {Heide}, organization = {Arbeitskreis Wirtschaftsinformatik an Hochschulen f{\"u}r angewandte Wissenschaften}, doi = {10.15771/10.15771/978-3-944330-59-4}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-2809}, subject = {Wirtschaftsinformatik}, language = {de} } @misc{OPUS4-276, title = {Angewandte Forschung in der Wirtschaftsinformatik: Prozesse, Technologien, Anwendungen, Systeme und Management}, editor = {Barton, Thomas and Herrmann, Frank and Meister, Vera and M{\"u}ller, Christian and Seel, Christian}, publisher = {mana-Buch}, address = {Heide}, organization = {Arbeitskreis Wirtschaftsinformatik an Fachhochschulen (AKWI)}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-2767}, subject = {Wirtschaftsinformatik}, language = {de} } @inproceedings{OPUS4-206, title = {Angewandte Forschung in der Wirtschaftsinformatik: Prozesse, Technologien, Anwendungen, Systeme und Management}, editor = {Barton, Thomas and Erdlenbruch, Burkhard and Herrmann, Frank and M{\"u}ller, Christian and Marfurt, Konrad and Seel, Christian}, publisher = {mana-Buch}, address = {Heide}, isbn = {978-3-944330-47-1}, doi = {10.15771/978-3-944330-47-1_2015_1}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-2068}, abstract = {Der Titel unseres Tagungsbands „Prozesse, Technologie, Anwendungen, Systeme und Management 2015" unterstreicht erneut die fachliche Breite der Beitr{\"a}ge der forschenden Kollegen an Fachhochschulen. Im Rahmen eines zweistufigen Begutachtungsverfahrens - zun{\"a}chst wurde von den Mitgliedern des Programmkomitees ein Abstract begutachtet und danach der vollst{\"a}ndige Beitrag - wurden die vorliegenden 31 Beitr{\"a}ge f{\"u}r die Tagung ausgew{\"a}hlt. Diese hohe Zahl an Beitr{\"a}gen widerspiegelt den großen Aufwand, den unsere Kollegen zus{\"a}tzlich zu ihren Lehrdeputaten in die Forschung investieren. Zugleich erforderte sie auf Grund der limitierten Seitenzahl des Tagungsbandes da und dort K{\"u}rzungen, welche den Autorinnen und Autoren sicherlich nicht immer leicht fielen. Ungek{\"u}rzte Versionen der Beitr{\"a}ge k{\"o}nnen auch jederzeit in unserem online Journal (http://ojs.hslu.ch/index.php/AKWI) eingereicht werden. Wir haben die Beitr{\"a}ge wiederum in drei Tracks angeordnet, welche zugleich die {\"U}berschriften der Abschnitte des Tagungsbandes bilden. Der Track „Gesch{\"a}ftsprozesse" hat die Schwerpunkte „Modellierung und Simulation von Gesch{\"a}ftsprozessen" sowie „Referenz-und Reifegradmodelle". Der Track „Management und IT-Systeme" liefert interessante Einblicke u.a. in die Themen Digitalisierung, Akzeptanz von IT-Systemen, agile Methoden, Nutzenanalyse einer In-Memory Datenbank im Umfeld Business Intelligence, Einf{\"u}hrung von ERP-Systemen auch in KMU, Datenqualit{\"a}t und modellgetriebene Softwareentwicklung. Cloud-L{\"o}sungen von Standardsoftwareherstellern, Mobilit{\"a}t, virtuelle Labore, Private Cloud, Sicherheit und mobile Applikationen sind die Themen im Track „Cloud - Mobile - Security". Die Reihenfolge der Beitr{\"a}ge innerhalb der Tracks (und damit der Kapitel des Tagungsbandes) folgt keinem speziellen Aufbau, sondern den planungstechnischen Randbedingungen. Zu letzteren geh{\"o}rt auch die Tatsache, dass dieses Jahr erfreulicherweise zum ersten Mal ein Doktorandenkolloquium in die wissenschaftliche Fachtagung integriert werden konnte. Herrn Prof. Dr. Christian Seel sei an dieser Stelle noch einmal ganz herzlich daf{\"u}r gedankt. Trotz ihrer K{\"u}rze weisen alle vorliegenden Beitr{\"a}ge ein hohes Niveau auf und belegen das große Engagement der Kolleginnen und Kollegen, die sich im Arbeitskreis Wirtschaftsinformatik an Fachhochschulen (AKWI) zusammengefunden haben. Die Herausgeber danken allen Autorinnen und Autoren f{\"u}r die eingereichten Beitr{\"a}ge und der gastgebenden Hochschule Luzern f{\"u}r die zur Verf{\"u}gung gestellten R{\"a}umlichkeiten im Zentrum von Luzern und die Unterst{\"u}tzung des Drucks unseres Tagungsbandes.}, subject = {Wirtschaftsinformatik}, language = {de} } @article{RueckHerrmannSchuierer, author = {Rueck, Philip and Herrmann, Frank and Schuierer, Maximilian}, title = {Automatisierung von Akzeptanztests im Bereich der Web-Entwicklung}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik (AKWI)}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik (AKWI)}, number = {8}, publisher = {AKWI}, organization = {Arbeitskreis Wirtschaftsinformatik an Hochschulen f{\"u}r angewandte Wissenschaften}, doi = {10.26034/lu.akwi.2018.3216}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-1885}, pages = {37 -- 45}, abstract = {Jede Art von Software muss heutzutage h{\"o}chsten Anforderungen gen{\"u}gen. Das Testen von Software bildet demnach einen wesentlichen und zunehmend wichtigeren Teil des Softwareentwicklungszyklus. In Zeiten der Digitalisierung ist in vielen Softwareprojekten mittlerweile eine Form der Testautomatisierung integriert. Testautomatisierung erm{\"o}glicht die {\"U}berpr{\"u}fung von Anforderungen in hohen Tempo und reduziert zudem den manuellen Pr{\"u}fungsaufwand auf ein Minimum. Diese Arbeit untersucht die M{\"o}glichkeit einer Automatisierung von Akzeptanztests im Rahmen der Webentwicklung in einem agilen Umfeld. Anhand eines Anwendungsbeispiels wird dargestellt, wie mithilfe der Werkzeuge Cucumber und Selenium ein erster Ansatz zur Testautomatisierung umgesetzt werden kann.}, subject = {Softwaretest}, language = {de} } @article{WeberChristenHerrmann, author = {Weber, Karsten and Christen, Markus and Herrmann, Dominik}, title = {Bedrohung, Verwundbarkeit, Werte und Schaden : Cyberattacken und Cybersicherheit als Thema der Technikfolgenabsch{\"a}tzung}, series = {TATuP - Journal for Technology Assessment in Theory and Practice}, volume = {29}, journal = {TATuP - Journal for Technology Assessment in Theory and Practice}, number = {1}, publisher = {oekom-verlag}, issn = {2567-8833}, doi = {10.14512/tatup.29.1.10}, pages = {10 -- 43}, abstract = {The annual monetary costs incurred worldwide by cyberattacks are growing steadily and are on a scale comparable to the budgets of entire countries. Cyberattacks affect individuals, businesses, public institutions, authorities, and governments; they affect an infrastructure without which modern societies can hardly function. But ensuring cybersecurity can lead to conflicts of interest. Technologies used to ensure the security and resilience of this infrastructure should therefore be a subject of technology assessment.}, language = {de} } @article{CorstenLauer, author = {Corsten, Sabine and Lauer, Norina}, title = {Biography work in long-term residential aged care with tablet support to improve the quality of life and communication - study protocol for app development and evaluation}, series = {International Journal of Health Professions}, volume = {7}, journal = {International Journal of Health Professions}, number = {1}, doi = {10.2478/ijhp-2020-0002}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-8446}, pages = {13 -- 23}, abstract = {Hintergrund {\"A}ltere Menschen in Pflegeeinrichtungen haben ein hohes Risiko, an Depressionen zu erkranken. Die Auswirkungen fr{\"u}her Interventionen wie Biografiearbeit auf die Lebensqualit{\"a}t {\"a}lterer, institutionalisierter Personen sind unerforscht. Ziel Entwicklung und Evaluation einer tablet-gest{\"u}tzten Intervention zur Biografiearbeit in der station{\"a}ren Langzeitpflege zur Steigerung der Lebensqualit{\"a}t {\"a}lterer Menschen. Design Die Studie wird in einem randomisierten Pre-Test-Post-Test-Kontrollgruppen-Design mit Follow-up-Testung im Gruppen- und Einzel-Setting durchgef{\"u}hrt. Die Teilnehmenden werden randomisiert der experimentellen Intervention (Tablet-gest{\"u}tzte biografische Arbeit) oder der Kontrollintervention (geplant Tablet-gest{\"u}tztes Spiel), die jeweils von {\"a}lteren, ehrenamtlich Helfenden unterst{\"u}tzt werden, zugewiesen. Insgesamt werden 80 Bewohner/-innen und 16 Ehrenamtliche rekrutiert. Prim{\"a}rer Outcome ist die Lebensqualit{\"a}t der Bewohner/-innen und der ehrenamtlich Helfenden, gemessen mit dem World Health Organization Quality of Life Assessment for older adults. Sekund{\"a}rer Outcome sind Selbstwertgef{\"u}hl und Lebenszufriedenheit. Dar{\"u}ber hinaus werden Kommunikationsf{\"a}higkeit und die funktionale Unabh{\"a}ngigkeit der Bewohner/-innen untersucht. Methode In der ersten Projektphase wird eine App im Sinne eines benutzerzentrierten, agilen Entwicklungsprozesses konzipiert, die multimodal lebensgeschichtliche Themen aufbereitet und mit Schl{\"u}sselfragen verkn{\"u}pft. F{\"u}r {\"a}ltere Ehrenamtliche, die den Einsatz der App in den Institutionen begleiten, wird ein Workshop entwickelt. In der zweiten Phase wird die von der App angeregte biografische Arbeit im Gruppen- und Einzel-Setting durchgef{\"u}hrt. Diskussion Dies ist das erste bekannte Programm, das auf {\"a}ltere Menschen in Pflegeeinrichtungen und {\"a}ltere Ehrenamtliche zugeschnitten ist und darauf abzielt, Depressionen durch digital unterst{\"u}tzte biografische Arbeit vorzubeugen.}, language = {en} } @article{KlotzKopperWestneretal., author = {Klotz, Stefan and Kopper, Andreas and Westner, Markus and Strahringer, Susanne}, title = {Causing factors, outcomes, and governance of Shadow IT and business-managed IT}, series = {International Journal of Information Systems and Project Management}, volume = {7}, journal = {International Journal of Information Systems and Project Management}, number = {1}, issn = {2182-7796}, doi = {10.12821/ijispm070102}, pages = {15 -- 43}, abstract = {Shadow IT and Business-managed IT describe the autonomous deployment/procurement or management of Information Technology (IT) instances, i.e., software, hardware, or IT services, by business entities. For Shadow IT, this happens covertly, i.e., without alignment with the IT organization; for Business-managed IT this happens overtly, i.e., in alignment with the IT organization or in a split responsibility model. We conduct a systematic literature review and structure the identified research themes in a framework of causing factors, outcomes, and governance. As causing factors, we identify enablers, motivators, and missing barriers. Outcomes can be benefits as well as risks/shortcomings of Shadow IT and Business-managed IT. Concerning governance, we distinguish two subcategories: general governance for Shadow IT and Business-managed IT and instance governance for overt Business-managed IT. Thus, a specific set of governance approaches exists for Business-managed IT that cannot be applied to Shadow IT due to its covert nature. Hence, we extend the existing conceptual understanding and allocate research themes to Shadow IT, Business-managed IT, or both concepts and particularly distinguish the governance of the two concepts. Besides, we find that governance themes have been the primary research focus since 2016, whereas older publications (until 2015) focused on causing factors.}, subject = {Betriebliches Informationssystem}, language = {en} } @article{RoeslSeitz, author = {R{\"o}sl, Gerhard and Seitz, Franz}, title = {Central Bank Digital Currency and Cash in the Euro Area: Current Developments and one Specific Proposal}, series = {Credit and Capital Markets - Kredit und Kapital}, volume = {55}, journal = {Credit and Capital Markets - Kredit und Kapital}, number = {4}, publisher = {Duncker \& Humblot}, address = {Berlin}, doi = {10.3790/ccm.55.4.523}, pages = {523 -- 551}, abstract = {The present paper provides an overview on current developments of cash usage and issue of central bank digital currency (CBDC) in the euro area and proposes a possible design of a digital euro that allows for instant offline payments. Cash usage at the point-of-sale decreased perceptibly in the past years mainly due to the ongoing trend towards digitalization. However, we show that there are also indications that consumers were somewhat pushed into cashless payments by government regulations and supply-side restrictions by commercial banks. Nonetheless, overall demand for euro cash remained strong and even increased relative to GDP since the financial crisis in 2008. In this process, however, we observe a supply-driven shift towards lower banknote denominations. Central banks all over the world are intensively thinking about the potential issue of ­CBDC as a substitute or complement to cash. Based on some of its preferred characteristics, we propose a double pre-paid scheme combining central elements of TARGET Instant Payment Settlement and electronic money features enabling offline and online instant payments. Since anonymity is categorically discarded by the ECB and as cash has some special advantages from a consumer perspective, the digital euro will rather co-circulate with cash than replace it in transactions.}, language = {en} } @article{KobusWestnerStrahringer, author = {Kobus, J{\"o}rn and Westner, Markus and Strahringer, Susanne}, title = {Change management lessons learned for Lean IT implementations}, series = {International Journal of Information Systems and Project Management}, volume = {5}, journal = {International Journal of Information Systems and Project Management}, number = {1}, pages = {47 -- 60}, abstract = {Lean Management is a standard production mode that has been familiar to production organizations for several decades. To date, however, academic literature has presented surprisingly little information about the application of Lean Management in Information Technology (IT) organizations, or what is called Lean IT. Drawing upon an empirical qualitative case study of the IT departments of two multinational companies, in this paper we identify change management lessons learned for Lean IT implementations, as well as seven characteristics of a corresponding change management approach. As an extension of our work, researchers should validate and expand our initial findings, preferably in a quantitative setting.}, subject = {Betriebliches Informationssystem}, language = {en} } @article{KeinerBreyerSterner, author = {Keiner, Dominik and Breyer, Christian and Sterner, Michael}, title = {Coupling heat and electricity storage technologies for cost and self-consumption optimised residential PV prosumer systems in Germany}, series = {International Journal of Sustainable Energy Planning and Management}, volume = {21}, journal = {International Journal of Sustainable Energy Planning and Management}, publisher = {OJS/PKP}, doi = {10.5278/ijsepm.2019.21.4}, abstract = {Coupling energy sectors within the emerging residential PV prosumer systems is necessary for an optimised use of the houseowners' own produced electricity. But the pure availability of different energy technologies in the system is not enough. By optimising the electricity usage as well as the capacities of PV generators, storage technologies, heat pumps and battery electric vehicles, not only the best solution in a technical point of view can be achieved, the need of finding the most financially beneficial system composition for single-family houses and tenements is possible. The study provides a detailed model for average German single-family houses and tenements and results for the energy transition period until 2050 for the optimised energy systems regarding optimised PV and stationary battery capacities and different heat storage capacities. Most noticeable outcomes can be observed by using a vehicle-to-home car, where a car can mostly take over the tasks of a stationary battery and by introducing a solidarity model using this type of car in tenement systems.}, language = {en} } @inproceedings{RolfReggelinLangetal., author = {Rolf, Benjamin and Reggelin, Tobias and Lang, Sebastian and Galka, Stefan}, title = {Developing a Decision Support System for Integrated Decision-Making in Purchasing and Scheduling under Lead Time Uncertainty}, series = {Proceedings of the 55th Hawaii International Conference on System Sciences (HICSS55): January 3-7, 2022, Maui, Hawaii, USA}, volume = {2022}, booktitle = {Proceedings of the 55th Hawaii International Conference on System Sciences (HICSS55): January 3-7, 2022, Maui, Hawaii, USA}, doi = {10.24251/HICSS.2022.247}, pages = {1964 -- 1973}, abstract = {Decision-making in supply chain management is complex because of the relations between planning tasks from different stages and planning levels. Uncertainties such as unpredictable supplier lead times and supply chain disruptions further complicate decision-making. Considering the case study of a company in printed circuit board assembly, a three-level concept is proposed that includes a decision support system. The global single-source supply network is characterized by highly variable lead times. Hence, the company maintains high inventory levels to prevent running out of stock. The decision support system considers the purchasing and scheduling decision problems in an integrated way. The prototypical implementation of the purchasing algorithm uses a genetic algorithm that recommends reorder days and order quantities using a simulation model. In addition, it evaluates the risks of the recommended solution by calculating the probability of stockouts for each order cycle.}, language = {en} } @incollection{Ortner, author = {Ortner, Martina}, title = {Didaktik und Lehre im berufsbegleitenden Studiengang Soziale Arbeit - ein Erfahrungsbericht}, series = {Akademische Weiterbildung f{\"u}r Soziale Berufe: Theoretische empirische und praktische Aspekte}, booktitle = {Akademische Weiterbildung f{\"u}r Soziale Berufe: Theoretische empirische und praktische Aspekte}, editor = {Sch{\"o}pf, Nicolas}, publisher = {wbv}, address = {Bielefeld}, isbn = {9783763966479}, doi = {10.3278/9783763966479}, pages = {161 -- 192}, abstract = {Der Erfahrungsbericht ist zugleich ein Ideenpool f{\"u}r experimentierfreudige Lehrende. Nach einer kurzen Beschreibung des Settings im berufsbegleitenden Studiengang werden ausgew{\"a}hlte Grundlagen der Didaktik skizziert und vor diesem Hintergrund drei Beispiele aus unterschiedlichen Semestern vorgestellt. Daran wird gezeigt, wie Lehre und Didaktik im Studiengang Soziale Arbeit den Bed{\"u}rfnissen der berufsbegleitend Studierenden dialogorientiert angepasst und weiterentwickelt werden. Die Erkenntnisse werden abschließend in drei Kernaussagen geb{\"u}ndelt.}, language = {de} } @unpublished{RueckMuellerJobstetal., author = {R{\"u}ck, Thomas and M{\"u}ller, Max and Jobst, Simon and Weigl, Stefan and Pangerl, Jonas and Bierl, Rudolf and Matysik, Frank-Michael}, title = {Digital Twin of a Photoacoustic Trace Gas Sensor for Monitoring Methane in Complex Gas Compositions}, publisher = {Elsevier / SSRN}, doi = {10.2139/ssrn.4215170}, pages = {22}, abstract = {The digitalization of industrial processes requires smart sensor systems. Photoacoustic spectroscopy is well suited for this purpose as it allows for small-sized and low-cost trace gas analysis. However, the method is susceptible to changes in measurement conditions and standard calibration routines often fail to correct for all changes. We therefore created a Digital Twin (DT) of a photoacoustic trace gas sensor for methane and evaluated it regarding variations in gas composition (CH4, N2, O2, CO2, H2O), temperature and pressure. With a mean absolute percentage error of 0.8 \% the accuracy of the sensor after DT compensation significantly exceeds the 24 \% achieved based on standard calibration in nitrogen. For the first time, we can fully analytically compute the photoacoustic signal under moderate ambient conditions with an error in the ppbV range by taking a holistic approach. Assuming knowledge of the underlying energy transfer processes, the model of this Digital Twin can be adapted to any microphone based photoacoustic sensor for monitoring any analyte species.}, language = {en} } @article{WeberRinkeAlwardt, author = {Weber, Karsten and Rinke, Bernhard and Alwardt, Christian}, title = {Dr. Seltsam, oder wie ich lernte, die Drohne zu lieben}, series = {TATuP - Zeitschrift f{\"u}r Technikfolgenabsch{\"a}tzung in Theorie und Praxis}, volume = {27}, journal = {TATuP - Zeitschrift f{\"u}r Technikfolgenabsch{\"a}tzung in Theorie und Praxis}, number = {3}, publisher = {Institute for Technology Assessment and Systems Analysis / KIT}, doi = {10.14512/tatup.27.3.11}, pages = {11 -- 13}, abstract = {Drohnen werden inzwischen in vielen und sehr unterschiedlichen Kon-texten verwendet. Aus dem Blickwinkel der Technikfolgenabsch{\"a}tzung (TA) scheint es daher sinnvoll, den Umfang der momentanen und zu-k{\"u}nftigen Nutzung von Drohnen und daraus resultierende Implikatio-nen n{\"a}her zu beleuchten und eine Bestandsaufnahme durchzuf{\"u}hren. Dar{\"u}ber hinaus sollen die voraussichtlichen Pfade der weiteren Tech-nikentwicklung, relevante Akteure und deren Interessenslage sowie zu-k{\"u}nftige Anwendungspotenziale und Einsatzfelder analysiert werden}, language = {de} } @article{Herrmann, author = {Herrmann, Frank}, title = {Effiziente und effektive Lagerhaltung - IT-gest{\"u}tzte Durchf{\"u}hrung von Bestandsmanagementprojekten}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik (AKWI)}, volume = {2}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik (AKWI)}, organization = {Arbeitskreis Wirtschaftsinformatik an Fachhochschulen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-1940}, pages = {1 -- 16}, abstract = {Ein effizientes und effektives Bestandsmanagement ist zentral f{\"u}r geringe Auswirkungen durch fehlende Produkte und geringe Lagerhaltungskosten. Die f{\"u}r viele Unternehmen geeigneten Formeln zum Bestandsmanagement und seine produktspezifische Anwendung werden in einem Leitfaden zusammengefasst und anhand eines realen Anwendungsfalls erl{\"a}utert. Seine manuelle Durchf{\"u}hrung ist sehr aufwendig. Es wird erl{\"a}utert, welche Schritte des Leitfadens wie durch ein Programm durchgef{\"u}hrt werden k{\"o}nnen.}, subject = {Bestandsmanagement}, language = {de} } @inproceedings{Herrmann, author = {Herrmann, Frank}, title = {Einstellung von Losgr{\"o}ßenverfahren in der operativen Produktionsplanung und -steuerung}, series = {Betriebliche Anwendungssysteme : Herausforderungen an die Wirtschaftsinformatik; Tagungsband zur AKWI-Fachtagung vom 11. bis 14.09.2011 an der Fachhochschule Worms}, booktitle = {Betriebliche Anwendungssysteme : Herausforderungen an die Wirtschaftsinformatik; Tagungsband zur AKWI-Fachtagung vom 11. bis 14.09.2011 an der Fachhochschule Worms}, editor = {Barton, Thomas and Erdlenbruch, Burkhard and Herrmann, Frank and M{\"u}ller, Christian}, publisher = {Verlag News \& Media}, address = {Berlin}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-2348}, pages = {39 -- 50}, abstract = {Durch eine Zusammenfassung von Produktionsauftr{\"a}gen zu Losen werden R{\"u}staufw{\"a}nde zu Lasten von Best{\"a}nden reduziert. F{\"u}r einen m{\"o}glichst guten Ausgleich dieser Kosten existieren in kommerziell verf{\"u}gbaren IT-Systemen f{\"u}r die operativen Produktionsplanung und -steuerung eine Vielzahl von Losgr{\"o}ßenverfahren. Der Beitrag erl{\"a}utert diese kurz und nennt Einstellhinweise unter industriellen Randbedingungen.}, subject = {PPS}, language = {de} } @incollection{KudienkoPfingsten, author = {Kudienko, Natalie and Pfingsten, Andrea}, title = {Empowerment durch Teletherapie}, series = {Digitale Technik f{\"u}r ambulante Pflege und Therapie: Herausforderungen, L{\"o}sungen, Anwendungen und Forschungsperspektiven}, booktitle = {Digitale Technik f{\"u}r ambulante Pflege und Therapie: Herausforderungen, L{\"o}sungen, Anwendungen und Forschungsperspektiven}, editor = {Weber, Karsten and Haug, Sonja and Lauer, Norina and Meussling-Sentpali, Annette and Mohr, Christa}, publisher = {Transcript}, address = {Bielefeld}, isbn = {9783839462355}, doi = {10.1515/9783839462355-006}, pages = {119 -- 136}, language = {de} } @incollection{WillRaptis, author = {Will, Anna and Raptis, Georgios}, title = {Erfolgsfaktoren und Hemmnisse f{\"u}r die Akzeptanz von Ambient Assisted Living}, series = {Digitale Technik f{\"u}r ambulante Pflege und Therapie: Herausforderungen, L{\"o}sungen, Anwendungen und Forschungsperspektiven}, volume = {1}, booktitle = {Digitale Technik f{\"u}r ambulante Pflege und Therapie: Herausforderungen, L{\"o}sungen, Anwendungen und Forschungsperspektiven}, editor = {Weber, Karsten and Haug, Sonja and Lauer, Norina and Meussling-Sentpali, Annette and Mohr, Christa}, publisher = {transcript}, address = {Bielefeld}, isbn = {978-3-8376-6235-1}, doi = {10.14361/9783839462355-012}, pages = {245 -- 286}, language = {de} } @incollection{LauerGreinerPfingstenetal., author = {Lauer, Norina and Greiner, Nina and Pfingsten, Andrea and Kudienko, Natalie}, title = {Ethisch-technische Evaluation der im Projekt DeinHaus 4.0 Oberpfalz eingesetzten Therapie-Apps f{\"u}r das logop{\"a}dische und physiotherapeutische Eigentraining}, series = {Digitale Technik f{\"u}r ambulante Pflege und Therapie. Herausforderungen, L{\"o}sungen, Anwendungen und Forschungsperspektiven}, booktitle = {Digitale Technik f{\"u}r ambulante Pflege und Therapie. Herausforderungen, L{\"o}sungen, Anwendungen und Forschungsperspektiven}, editor = {Weber, Karsten and Haug, Sonja and Lauer, Norina and Meussling-Sentpali, Annette and Mohr, Christa and Pfingsten, Andrea and Raptis, Georgios and Bahr, Gudrun}, publisher = {transcript}, address = {Bielefeld}, isbn = {978-3-8394-6235-5}, doi = {10.14361/9783839462355-008}, pages = {155 -- 174}, abstract = {In diesem Beitrag wird die Bewertung von Patient*innen-Apps f{\"u}r das logop{\"a}dische bzw-. physiotherapeutische Eigentraining durch Fachpersonen anhand der MARS-G-Skala vorgestellt.}, subject = {Digitalisierung}, language = {de} } @article{HellwigBradshawSchrollDecker, author = {Hellwig, Michael and Bradshaw, Marco and Schroll-Decker, Irmgard}, title = {Evaluierung von nachhaltiger Wirksamkeit in der wissenschaftlichen Weiterbildung}, series = {ZHWB - Zeitschrift Hochschule und Weiterbildung}, journal = {ZHWB - Zeitschrift Hochschule und Weiterbildung}, number = {2}, publisher = {Deutsche Gesellschaft f{\"u}r wissenschaftliche Weiterbildung und Fernstudium e.V. (DGWF)}, doi = {10.11576/zhwb-3391}, pages = {59 -- 67}, abstract = {Evaluationen k{\"o}nnen einen wichtigen Beitrag f{\"u}r die professionelle Entwicklung der wissenschaftlichen Weiterbildung leisten. Voraussetzung hierf{\"u}r ist die Ber{\"u}cksichtigung von nachhaltiger Wirksamkeit als Evaluationsziel und Gegenstand, denn daraus lassen sich wichtige Informationen f{\"u}r das professionelle Handeln der Beteiligten am Weiterbildungsgeschehen ableiten. Der Beitrag greift Erfahrungen aus der begleitenden Evaluations- und Wirksamkeitsforschung im Projekt OTH mind auf. Anhand der Evaluationsstandards der Deutschen Gesellschaft f{\"u}r Evaluation (DeGEval-Standards) werden das Vorgehen und die ergriffenen Maßnahmen in Hinblick auf die Qualit{\"a}t der Planung und Durchf{\"u}hrung bewertet. Insgesamt werden f{\"u}nf zentrale Empfehlungen f{\"u}r die Evaluationspraxis formuliert: f{\"u}r (1) die Einbindung von Beteiligten im Evaluationsprozess, (2) eine Nutzenevaluation auf verschiedenen Ebenen, (3) Ziele und Gegenst{\"a}nde einer professionalisierungsbezogenen Evaluation, (4) eine zielbezogene Messung sowie (5) die Nutzung/R{\"u}ckkopplung der Ergebnisse an Weiterbildungsverantwortliche. Weiterbildungspraktiker*innen an Hochschulen dienen die Empfehlungen als Impulse f{\"u}r eigene zuk{\"u}nftige Evaluationsanliegen.}, subject = {Wissenschaftliche Weiterbildung}, language = {de} } @inproceedings{SelmairHanfeldClausetal., author = {Selmair, Maximilian and Hanfeld, Marc and Claus, Thorsten and Herrmann, Frank}, title = {Exploring Opportunities}, series = {Simulation Notes Europe (SNE), Special Issue: Simulation in Production and Logistics: Impact of Energetic Factors}, volume = {27}, booktitle = {Simulation Notes Europe (SNE), Special Issue: Simulation in Production and Logistics: Impact of Energetic Factors}, number = {2}, doi = {10.11128/sne.27.tn.10375}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-2007}, pages = {97 -- 103}, abstract = {Motivated by the increasing share of renewable energy in the markets for energy commodities, this study has evaluated the potential for optimizing production planning by taking into account disposable options for procuring energy, in this case electricity. For this purpose, a material flow simulation study extended by an electricity price simulation has been executed to examine possible cost scenarios. Our findings support the notion of a potential for further research in new optimization models involving energy procurement as well as energy trading options}, subject = {Materialflussplanung}, language = {en} } @inproceedings{SchuheggerArmbrusterGalka, author = {Schuhegger, Lukas and Armbruster, Thomas and Galka, Stefan}, title = {Factory Data Model for Planning Variant Sequences, Expansion Stages and Reconfigurations}, series = {IFAC-PapersOnLine}, volume = {56}, booktitle = {IFAC-PapersOnLine}, number = {2}, publisher = {IFAC / Elsevier}, doi = {10.1016/j.ifacol.2023.10.1573}, pages = {227 -- 232}, abstract = {A factory has to adapt to a future production program and increasing volumes. The planning of new factories must therefore already take expansion stages and reconfigurations into account. This leads to an increase in the complexity of planning, as different variants have to be planned and put into a chronologically reasonable and cost-optimized sequence. A factory data model that covers expansion stages manages the planning data amount and reduces complexity. Based on existing models from the literature, a factory data model was developed and modeled in the Unified Modeling Language standard. The factory data model shows which classes are interdependent and how planning results are stored reusable for other variants. An example is used to explain the developed factory data model and highlighting its advantages. The aim is to enable factory planners to document variant sequences and expansion stages in a comprehensible way, which supports the interdisciplinarity of factory planning projects.}, language = {en} } @article{BrosigStrahringerWestner, author = {Brosig, Christoph and Strahringer, Susanne and Westner, Markus}, title = {From selling machinery to hybrid offerings}, series = {International Journal of Information Systems and Project Management}, volume = {10}, journal = {International Journal of Information Systems and Project Management}, number = {3}, publisher = {SciKA}, issn = {2182-7788}, doi = {10.12821/ijispm100301}, pages = {5 -- 27}, abstract = {The transition towards services has been imperative for manufacturing firms for years. The change from a productoriented to a more service-dominant business model affects the organizational structure of firms. However, literature provides limited insights into how manufacturing firms organize themselves in this transition. Even though digital technologies are critical for the transition, it is unclear how to orchestrate digital and traditional Information Technology (IT) resources in manufacturing firms accordingly. We analyze the case of a typical manufacturing firm that has adjusted its structure to reorganize for solution offerings based on product, service, and digital components. Our results describe a hybrid organizational structure that splits front- and back-end units. The back-end units are split along solution components. Digital IT resources are internalized and governed decentrally, with traditional IT resources being outsourced and steered centrally. Our findings contribute to digital servitization research by clarifying the overarching as well as the digital and traditional IT-related organization for manufacturing firms.}, language = {en} } @inproceedings{Palm, author = {Palm, Christoph}, title = {Fusion of Serial 2D Section Images and MRI Reference}, series = {Workshop Innovative Verarbeitung bioelektrischer und biomagnetischer Signale (bbs2014), Berlin, 10.04.2014}, booktitle = {Workshop Innovative Verarbeitung bioelektrischer und biomagnetischer Signale (bbs2014), Berlin, 10.04.2014}, doi = {10.13140/RG.2.1.1358.3449}, abstract = {Serial 2D section images with high resolution, resulting from innovative imaging methods become even more valuable, if they are fused with in vivo volumes. Achieving this goal, the 3D context of the sections would be restored, the deformations would be corrected and the artefacts would be eliminated. However, the registration in this field faces big challenges and is not solved in general. On the other hand, several approaches have been introduced dealing at least with some of these difficulties. Here, a brief overview of the topic is given and some of the solutions are presented. It does not constitute the claim to be a complete review, but could be a starting point for those who are interested in this field.}, subject = {Kernspintomografie}, language = {en} } @inproceedings{WickLindnerZimmeretal., author = {Wick, Michael and Lindner, Gerhard and Zimmer, Katja and Schreiner, Rupert and Fuhrmann, Thomas and Seebauer, Gudrun and Xu, Boqing and Zheng, Jihong and Wang, Ning}, title = {German-Chinese cooperative Bachelor in engineering physics/optoelectronics}, series = {14th Conference on Education and Training in Optics and Photonics: ETOP 2017; Hangzhou, China 29.05.2017 - 31.05.2017}, booktitle = {14th Conference on Education and Training in Optics and Photonics: ETOP 2017; Hangzhou, China 29.05.2017 - 31.05.2017}, editor = {Liu, Xu and Zhang, Xi-Cheng}, publisher = {SPIE}, isbn = {9781510613812}, doi = {10.1117/12.2269943}, abstract = {The University of Shanghai for Science and Technology (USST), the Coburg University of Applied Sciences and Arts (CUASA) and the OTH Regensburg, University of Applied Sciences (OTHR) established an English taught international cooperative bachelor program in the area of Engineering Physics/Optoelectronics. Students from China study their first four semesters at USST. They continue their studies in Germany for the last three semesters, including an internship and a bachelor thesis, graduating with a Chinese and a German bachelor degree. Students from Germany study their third and fourth semester at USST to gain international experience. While the first cohort of Chinese students is currently in Germany, the second cohort of German students is in Shanghai. Up to now the feedback regarding this study program is completely positive, thus it is planned to develop it further.}, language = {en} } @article{GensleinHauslerKirchneretal., author = {Genslein, Christa and Hausler, Peter and Kirchner, Eva-Maria and Bierl, Rudolf and Baeumner, Antje J. and Hirsch, Thomas}, title = {Graphene-enhanced plasmonic nanohole arrays for environmental sensing in aqueous samples}, series = {Beilstein Journal of Nanotechnology}, volume = {7}, journal = {Beilstein Journal of Nanotechnology}, publisher = {Beilstein-Institut}, doi = {10.3762/bjnano.7.150}, pages = {1564 -- 1573}, abstract = {The label-free nature of surface plasmon resonance techniques (SPR) enables a fast, specific, and sensitive analysis of molecular interactions. However, detection of highly diluted concentrations and small molecules is still challenging. It is shown here that in contrast to continuous gold films, gold nanohole arrays can significantly improve the performance of SPR devices in angle-dependent measurement mode, as a signal amplification arises from localized surface plasmons at the nanostructures. This leads consequently to an increased sensing capability of molecules bound to the nanohole array surface. Furthermore, a reduced graphene oxide (rGO) sensor surface was layered over the nanohole array. Reduced graphene oxide is a 2D nanomaterial consisting of sp2-hybridized carbon atoms and is an attractive receptor surface for SPR as it omits any bulk phase and therefore allows fast response times. In fact, it was found that nanohole arrays demonstrated a higher shift in the resonance angle of 250-380\% compared to a continuous gold film. At the same time the nanohole array structure as characterized by its diameter-to-periodicity ratio had minimal influence on the binding capacity of the sensor surface. As a simple and environmentally highly relevant model, binding of the plasticizer diethyl phthalate (DEP) via π-stacking was monitored on the rGO gold nanohole array realizing a limit of detection of as low as 20 nM. The concentration-dependent signal change was studied with the best performing rGO-modified nanohole arrays. Compared to continuous gold films a diameter-to-periodicity ratio (D/P) of 0.43 lead to a 12-fold signal enhancement. Finally, the effect of environmental waters on the sensor was evaluated using samples from sea, lake and river waters spiked with analytically relevant amounts of DEP during which significant changes in the SPR signal are observed. It is expected that this concept can be successfully transferred to enhance the sensitivity in SPR sensors.}, language = {en} } @misc{OPUS4-14, title = {Gute Technik f{\"u}r ein gutes Leben im Alter?}, editor = {Frommeld, Debora and Scorna, Ulrike and Haug, Sonja and Weber, Karsten}, publisher = {transcript Verlag}, address = {Bielefeld}, isbn = {978-3-8376-5469-1}, doi = {10.14361/9783839454695}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-149}, pages = {372}, abstract = {L{\"a}ngst gibt es altersgerechte digitale Assistenzsysteme. Doch sind Umfang und Geschwindigkeit ihrer Verbreitung sowohl in Pflegeeinrichtungen als auch in privaten Haushalten weitgehend unbekannt. Informationen zu tats{\"a}chlich eingesetzten Systemen, realisierten Ums{\"a}tzen und Marktvolumen sind kaum zu finden. Obwohl es viele Vermutungen hinsichtlich der Hindernisse bei der Einf{\"u}hrung altersgerechter Assistenzsysteme gibt, sind auch hier verl{\"a}ssliche Aussagen rar. Die Beitr{\"a}ge des Bandes liefern auf Basis empirischer Untersuchungen und theoretischer {\"U}berlegungen Antworten und zeigen auf, wie vielgestaltig die Faktoren sind, die die Diffusion altersgerechter Assistenzsysteme hemmen oder f{\"o}rdern.}, subject = {Alter}, language = {de} } @article{BaryWestnerStrahringer2019, author = {Bary, Benedikt von and Westner, Markus and Strahringer, Susanne}, title = {How decision maker's personal preferences influence the decision to backsource IT services}, series = {Journal of Information Technology Management (JITM)}, volume = {30}, journal = {Journal of Information Technology Management (JITM)}, number = {3}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-233}, pages = {1 -- 22}, year = {2019}, abstract = {To prepare their IT landscape for future business challenges, companies are changing their IT sourcing arrangements by using selective sourcing approaches as well as multi-sourcing with more but smaller sourcing contracts. Companies therefore have to reconsider and re-evaluate their IT sourcing setup more frequently. Collecting data from 251 global experts, we empirically tested the effect of service quality, relationship quality, and switching costs on IT sourcing decisions using partial least squares (PLS) analysis. Drawing on previously conducted expert interviews, our model extends previous studies and introduces a decision maker's sourcing preferences as a not yet examined moderator on IT sourcing decisions. This allows us to investigate the influence of the decision maker's beliefs on the decision process. We were able to confirm the negative effect of switching costs on a decision in favor of backsourcing, however we could not find significant support for the remaining hypotheses. We further discuss potential reasons for our findings and suggest future research opportunities based on our contribution.}, subject = {Outsourcing}, language = {en} } @article{MennickenPeterKaulenetal., author = {Mennicken, Max and Peter, Sophia Katharina and Kaulen, Corinna and Simon, Ulrich and Karth{\"a}user, Silvia}, title = {Impact of device design on the electronic and optoelectronic properties of integrated Ru-terpyridine complexes}, series = {Beilstein journal of nanotechnology}, volume = {13}, journal = {Beilstein journal of nanotechnology}, publisher = {Beilstein-Institut zur F{\"o}rderung der Chemischen Wissenschaften}, doi = {10.3762/bjnano.13.16}, pages = {219 -- 229}, abstract = {The performance of nanoelectronic and molecular electronic devices relies strongly on the employed functional units and their addressability, which is often a matter of appropriate interfaces and device design. Here, we compare two promising designs to build solid-state electronic devices utilizing the same functional unit. Optically addressable Ru-terpyridine complexes were incorporated in supramolecular wires or employed as ligands of gold nanoparticles and contacted by nanoelectrodes. The resulting small-area nanodevices were thoroughly electrically characterized as a function of temperature and light exposure. Differences in the resulting device conductance could be attributed to the device design and the respective transport mechanism, that is, thermally activated hopping conduction in the case of Ru-terpyridine wire devices or sequential tunneling in nanoparticle-based devices. Furthermore, the conductance switching of nanoparticle-based devices upon 530 nm irradiation was attributed to plasmon-induced metal-to-ligand charge transfer in the Ru-terpyridine complexes used as switching ligands. Finally, our results reveal a superior device performance of nanoparticle-based devices compared to molecular wire devices based on Ru-terpyridine complexes as functional units.}, language = {en} } @article{GalkaWappler, author = {Galka, Stefan and Wappler, Mona}, title = {Integration of cash flow management and further aspects of the supply chain management in production system design}, series = {IFAC-PapersOnLine}, volume = {56}, journal = {IFAC-PapersOnLine}, number = {2}, publisher = {IFAC / Elsevier}, doi = {10.1016/j.ifacol.2023.10.1687}, pages = {947 -- 952}, abstract = {One major goal of production system design is to decide on space requirements in the plant. In this phase, detailed information about the supply chain network (e.g. which suppliers deliver which parts) is often unavailable. Nevertheless, typical decisions in supply chain management, like the definition of replenishment processes and quantities or make-or-buy decisions, impact space requirements and the capital investment in raw materials. Therefore, it should be considered in factory and production planning. This research article proposes a simulation approach for a production simulation in which raw material replenishment is integrated to evaluate the capital investment and space requirements for raw materials.}, language = {en} } @book{OPUS4-3541, title = {Media Agency}, editor = {Barlieb, Christophe and Gasperoni, Lidia}, publisher = {transcript}, address = {Bielefeld}, doi = {10.14361/9783839448748}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-35416}, publisher = {Ostbayerische Technische Hochschule Regensburg}, pages = {224}, abstract = {Mediale Prozesse sind nicht nur bloße Mittel zur Darstellung und Simulation von Architektur, sondern selbst an der Herstellung von Architektur beteiligt. Die Beitr{\"a}ge des Bandes widmen sich dieser generativen und aktiven Funktion von Medien - definiert als Media Agency - in Architekturtheorie und -praxis. Ziel ist es, die Funktion von Medien in Entwurfsprozessen zu {\"u}berdenken, neu zu bewerten und die Hybridisierung von Analogem und Digitalem anzustoßen.}, language = {de} } @article{SavelievFetisovChashinetal., author = {Saveliev, Dmitry V. and Fetisov, Leonid Y. and Chashin, Dmitri V. and Shabin, P. A. and Vyunik, D. A. and Fedulov, Feodor and Kettl, W. and Shamonin (Chamonine), Mikhail}, title = {Method of Measuring Deformations of Magnetoactive Elastomers under the Action of Magnetic Fields}, series = {Russian Technological Journal}, volume = {7}, journal = {Russian Technological Journal}, number = {4}, doi = {10.32362/2500-316x-2019-7-4-81-91}, pages = {81 -- 91}, language = {ru} } @article{HaugLochnerHuber, author = {Haug, Sonja and Lochner, Susanne and Huber, Dominik}, title = {Methodological Aspects of a Quantitative and Qualitative Survey of Asylum Seekers in Germany}, series = {mda - methods data analyses}, volume = {13}, journal = {mda - methods data analyses}, number = {2}, publisher = {GESIS - Leibniz-Institut f{\"u}r Sozialwissenschaften}, doi = {10.12758/mda.2019.02}, pages = {321 -- 340}, abstract = {This field report presents and discusses methodological issues and challenges encountered in a mixed-methods research project on asylum seekers in Bavaria, Germany. It documents the research design of, and field experiences in, a quantitative survey based on a quota sampling procedure and a qualitative study, both of which were conducted in collective accommodation for asylum seekers at selected locations in that federal state. Standardized PAPI multiple-topic questionnaires were completed by asylum seekers from Syria, Afghanistan, Eritrea, and Iraq (N = 779); most of the questionnaires were self-administered. In addition, 12 qualitative face-to-face biographical interviews were conducted in order to gain an in-depth understanding of attitudes and experiences of asylum seekers. This report focuses on the following aspects: the use of gatekeepers to facilitate participant recruitment; sampling procedures; the involvement of interpreters in the data collection process; response bias and response behaviors among asylum seekers; and the experiences gained from data collection in collective accommodation for asylum seekers.}, language = {en} } @article{Chow, author = {Chow, Rosan}, title = {Moving forward together}, series = {Strategic Design Research Journal}, volume = {11}, journal = {Strategic Design Research Journal}, number = {2}, publisher = {OJS/PKP}, doi = {10.4013/sdrj.2018.112.14}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-29007}, pages = {167 -- 169}, language = {en} } @incollection{Haug, author = {Haug, Sonja}, title = {Nutzung, Planung und Bewertung digitaler Assistenzsysteme in der Pflege. Ergebnisse einer Befragung von F{\"u}hrungskr{\"a}ften in ambulanten und station{\"a}ren Einrichtungen}, series = {Gute Technik f{\"u}r ein gutes Leben im Alter? Akzeptanz, Chancen und Herausforderungen altersgerechter Assistenzsysteme}, booktitle = {Gute Technik f{\"u}r ein gutes Leben im Alter? Akzeptanz, Chancen und Herausforderungen altersgerechter Assistenzsysteme}, editor = {Frommeld, Debora and Weber, Karsten and Haug, Sonja and Scorna, Ulrike}, publisher = {transcript}, address = {Bielefeld}, isbn = {978-3-8376-5469-1}, doi = {10.14361/9783839454695-008}, pages = {185 -- 203}, language = {de} } @article{HauserHerrmann, author = {Hauser, Christian and Herrmann, Frank}, title = {Optimierung der Materialbereitstellung in der Fertigung nach Lean-Methoden in Anlehnung an das Kanban-Prinzip}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik (AKWI)}, volume = {4}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik (AKWI)}, organization = {Arbeitskreis Wirtschaftsinformatik an Fachhochschulen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-2049}, pages = {50 -- 54}, abstract = {Lean Management wurde in den letzten Jahren in den deutschen Produktionsbetrieben immer popul{\"a}rer. Die daraus resultierende Umstrukturierung bringt meist eine h{\"o}here Wirtschaftlichkeit, Produktivit{\"a}t und große Einsparpotenziale mit sich. Im Zuge dessen sollen bei der Produktion der K{\"u}hlbeh{\"a}lter (IsoTec) der Gebhardt Logistic Solutions GmbH in Cham Potenziale und Maßnahmen aufgedeckt werden, um die Prozesse zu verbessern. Großes Augenmerk liegt dabei, in der Anwendung eines der bekanntesten Methode des Lean Managements, dem Kanban-Prinzip, zur Optimierung der Materialbereitstellung, den Lagerbest{\"a}nden und den Durchlaufzeiten. Damit verbunden ist die Verk{\"u}rzung der Lieferzeiten gegen{\"u}ber dem Kunden. Durch die Nutzung der eigenen Kompetenzen rund um die Transportbeh{\"a}lterfertigung wird die Bereitstellung und der Transport der ben{\"o}tigten Materialien f{\"u}r die Montage neu geplant und umgesetzt.}, subject = {Lean Management}, language = {de} } @article{HerrmannBrunnerLaubmeier, author = {Herrmann, Frank and Brunner, Stephan and Laubmeier, Franz}, title = {Optimierung des Arbeitsablaufes von Lieferantenanfragen unter Entwicklung eines Webportals und weiteren Neuerungen im ERP-System FactWork}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik online}, volume = {13}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik online}, publisher = {AKWI}, doi = {10.26034/lu.akwi.2021.3304}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-30626}, pages = {19 -- 26}, abstract = {Effiziente Arbeitsabl{\"a}ufe sind f{\"u}r profitable Unternehmen von zentraler Natur. ERP-Systeme k{\"o}nnen betreffenden Firmen dahingehend helfen, besagte Arbeitsabl{\"a}ufe entsprechend abzubilden und nach M{\"o}glichkeit auch zu automatisieren. In dieser Arbeit sollen die notwendigen Schritte zur Bearbeitung einer Lieferantenanfrage prim{\"a}r durch eine Weboberfl{\"a}che zur automatisierten R{\"u}ckf{\"u}hrung eingehender Angebote, sowie weiteren Verbesserungen, optimiert werden, was eine Erh{\"o}hung der Produktivit{\"a}t, eine Verminderung des Zeitaufwandes, und damit auch eine Reduzierung der Personalkosten zur Folge hat.}, language = {de} } @unpublished{Weiss, author = {Weiß, Martin Georg}, title = {Optimization of Cartesian Tasks with Configuration Selection}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-20176}, abstract = {A basic task in the design of an industrial robot application is the relative placement of robot and workpiece. Process points are defined in Cartesian coordinates relative to the workpiece coordinate system, and the workpiece has to be located such that the robot can reach all points. Finding such a location is still an iterative procedure based on the developers' intuition. One difficulty is the choice of one of the several solutions of the backward transform of a typical 6R robot. We present a novel algorithm that simultaneously optimizes the workpiece location and the robot configuration at all process points using higher order optimization algorithms. A key ingredient is the extension of the robot with a virtual prismatic axis. The practical feasibility of the approach is shown with an example using a commercial industrial robot.}, subject = {Intralogistik}, language = {en} } @article{WulfRheidtHofKurapkatetal., author = {Wulf-Rheidt, Ulrike and Hof, Catharine and Kurapkat, Dietmar and Lorenz, Werner}, title = {Peking, Volksrepublik China. Der sog. Crystal Palace in der Verbotenen Stadt. Bericht {\"u}ber die Summer School 2016}, series = {e-Forschungsberichte des Deutschen Arch{\"a}ologischen Instituts}, journal = {e-Forschungsberichte des Deutschen Arch{\"a}ologischen Instituts}, number = {2}, publisher = {Deutsches Arch{\"a}ologisches Institut}, issn = {2198-7734}, doi = {10.34780/769a-6c2z}, pages = {59 -- 68}, abstract = {According to the Letter of Intent on Cooperation between the Palace Museum and the German Archaeological Institute from 2015 both institutes intend to cooperate on projects focusing on ancient palace architectures. As the first project of cooperation, the so-called Crystal Palace (Lingzhao Xuan) in the courtyard of the former Palace of Prolonging Happiness (Yanxi Gong) was selected, because it represents a unique example of the influence of western construction methods and architectural elements on Chinese palace architecture. The building, begun in 1909, is most unusual for the architecture of the Forbidden City because of its choice of materials. We are dealing with a stone-iron construction with cast iron and steel supports for floor and ceiling construction, pavilion-like super structures with iron and steel profiles, even steel door casings and window frames. The Summer School comprised mainly the mediation of theoretical principles of building archaeology and early iron construction including its cleaning and structural improvement on the one hand and practical work on the object itself on the other hand. A first round of discussions was added to heritage values and possible forms of presentation of the 'Crystal Palace', which initially was planned to be an aquarium. Looking for architectural examples in Europe it seems plausible that some inspiration from western aquaria helped the vision of the last emperors of China of a modern fish pool with clear water to gain shape. Concerning the question if the iron elements just like the decorated tiles also came from Germany it is suggested that these were enveloped in the context of the contemporary building project of the Tianjin-Pukow Railway for which the major share of orders had gone to German firms.}, language = {de} } @article{GauppEbnerSchuetzetal., author = {Gaupp, Nora and Ebner, Sandra and Sch{\"u}tz, Sandra and Brodersen, Folke}, title = {Quantitative Forschung mit Jugendlichen mit Behinderungen: Stand der Forschung, Entwicklungsbedarfe, M{\"o}glichkeiten und Grenzen einer inklusiven Jugendforschung}, series = {Inklusion-Online}, volume = {Vol. 13}, journal = {Inklusion-Online}, number = {No. 2}, publisher = {F{\"o}rderverein bidok Deutschland e.V.}, issn = {1862-5088}, abstract = {Im vorliegenden Beitrag wird der Forschungsstand zur Quantitativen Forschung mit Jugendlichen mit Behinderungen beleuchtet, auf Entwicklungsbedarfe hingewiesen und schließlich eine Diskussion um die M{\"o}glichkeiten und Grenzen einer inklusiven Jugendforschung gef{\"u}hrt.}, language = {de} }