TY - RPRT A1 - Huber, Anton A1 - Mecking, Simon A1 - Rabold, Andreas A1 - Wittstock, Volker T1 - Verbundvorhaben: Mehr als nur Dämmung – Zusatznutzen von Dämmstoffen aus nachwachsenden Rohstoffen (NawaRo-Dämmstoffe): Teilvorhaben 3 und 6 - Arbeitsbericht 2 Schallschutz: Zwischenbericht 3 Y1 - 2019 ER - TY - RPRT A1 - Blödt, Adrian A1 - Rabold, Andreas A1 - Halstenberg, Michael T1 - Schallschutz im Holzbau: Grundlagen und Vorbemessung: Holzbauhandbuch, Reihe 3, Teil 3, Folge 1 T2 - Holzbauhandbuch KW - HolzLeichtBau KW - Holzmassivbau KW - Luftschalldämmung KW - Trittschall Y1 - 2019 ER - TY - CHAP A1 - Hoßfeld, Michael A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Untersuchungen zur Ausweitung des Verfahrens zur Ermittlung der charakteristischen Körperschallleistung haustechnischer Anlagen mittels Empfangsplatten gemäß DINEN15657:2017-10 auf Anregungen in Plattenebene T2 - Fortschritte der Akustik - DAGA Y1 - 2019 SN - 978-3-939296-14-0 ER - TY - CHAP A1 - Châteauvieux-Hellwig, Camille A1 - Rabold, Andreas A1 - Bacher, Stefan A1 - Martin, Melina A1 - Rudolf, Michael T1 - Schallschutz von Flachdächern in Holzbauweise – Luft- und Trittschalldämmung von Flachdächern und Dachterrassen T2 - Fortschritte der Akustik - DAGA Y1 - 2019 SN - 978-3-939296-14-0 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Structure-borne sound sources in timber buildings – prediction of machinery noise using measured transmission functions T2 - Proceedings of ICA 2019 KW - Körperschall KW - HolzLeichtBau KW - Holzmassivbau KW - Körperschallquellen KW - Installationen KW - GebaeudetechnischeAnlagen Y1 - 2019 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Prognose von Installationsgeräuschen im Holzbau T2 - Fortschritte der Akustik - DAGA Y1 - 2019 SN - 978-3-939296-14-0 SP - 86 EP - 89 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Experimental investigation of a single reception plate method to obtain two source quantities required to predict structure-borne sound transmission in buildings T2 - Proceedings of ICA 2019 KW - Körperschall KW - Messtechnik KW - Körperschallquellen Y1 - 2019 ER - TY - CHAP A1 - Schöpfer, Fabian T1 - Prognose von Körperschall aus haustechnischen Anlagen – ein robustes und einfaches Tabellenverfahren für den Holzbau T2 - 10. HolzBauSpezial Y1 - 2019 ER - TY - CHAP A1 - Schanda, Ulrich A1 - Hoßfeld, Michael A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. T1 - In-plane excitation of reception plates according to EN 15657:2017 T2 - Proceedings of ICA 2019 KW - Körperschall KW - Normung KW - Körperschallquellen KW - Prüfstand Y1 - 2019 ER - TY - CHAP A1 - Schanda, Ulrich T1 - Zeitverlaufsanalysen des Lärms in Gaststätten vor und nach einer raumakustischen Ertüchtigung T2 - Fortschritte der Akustik - DAGA Y1 - 2019 SN - 978-3-939296-14-0 ER - TY - CHAP A1 - Rabold, Andreas A1 - Schödel, Benjamin A1 - Schanda, Ulrich T1 - Schalltechnische Optimierung von Unterdeckenabhängern T2 - Fortschritte der Akustik - DAGA Y1 - 2019 SN - 978-3-939296-14-0 SP - 559 EP - 562 ER - TY - CHAP A1 - Rabold, Andreas A1 - Châteauvieux-Hellwig, Camille A1 - Mecking, Simon T1 - Flanking transmission of solid wood elements in multi-storey timber buildings - input data and prediction models for airborne and impact sound excitation - T2 - Proceedings of Inter-Noise 2019 KW - Holzmassivbau KW - Flankenübertragung KW - Transmission KW - SEA Y1 - 2019 ER - TY - JOUR A1 - Mecking, Simon A1 - Rabold, Andreas A1 - Huber, Anton T1 - Insulation materials made of renewable raw materials for the sound insulation prognosis of building components JF - Proceedings of ICA 2019 KW - HolzLeichtBau KW - Luftschalldämmung KW - Transmission KW - NaWaRo Y1 - 2019 ER - TY - CHAP A1 - Mecking, Simon A1 - Rabold, Andreas A1 - Huber, Anton T1 - Dämmstoffe aus nachwachsenden Rohstoffen in der Bauteilprognose T2 - Fortschritte der Akustik - DAGA KW - Berechnungsmethoden KW - Luftschalldämmung KW - NaWaRo KW - Materialeigenschaften KW - PoroeseMaterialien Y1 - 2019 SN - 978-3-939296-14-0 ER - TY - CHAP A1 - Zehetmayr, Robert A1 - Rabold, Andreas A1 - Châteauvieux-Hellwig, Camille T1 - Schalltechnische Prognose von Trennbauteilen mit VBAcoustic T2 - Fortschritte der Akustik - DAGA Y1 - 2019 SN - 978-3-939296-14-0 ER - TY - RPRT A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Übertragungsfunktionen im Holzbau: Prognose der Schallübertragung aus haustechnischen Anlagen mit einem tabellarischen, praxistauglichen Ingenieurersatzverfahren: Forschungsbericht KW - Körperschall KW - HolzLeichtBau KW - Holzmassivbau KW - Körperschallquellen KW - Installationen KW - GebaeudetechnischeAnlagen KW - ZukunftBauUebertragung KW - Mischbau Y1 - 2019 ER - TY - CHAP A1 - Kortüm, Christian A1 - Riegel, Adrian T1 - Geometric Dimensioning and Tolerancing of Furniture Components T2 - Proceedings of the 24th International Wood Machining Seminar N2 - The machining of furniture components requires a complete geometrical specification of dimensions with associated tolerances to define in the first step appropriate manufacturing processes and to carry out the design and setup. Furthermore, a verification of the defined specification after production is a next step to check the quality and related to the production equipment, to calculate process capability and effectiveness. In 2011, the system of Geometrical Product Specification (GPS) has been published completely. The system is built for a distinct range of geometrical quality characteristics and consists of chains of standards referring to each other. With three elements of these chains, the product can be specified. With three additional elements, the verification of the product and the measuring system is possible. It does not contain the verification of the production processes, the process qualification. The German standard DIN 68100 provides a frame for dimensioning and tolerancing lengths and also angles, parallelism and straightness for furniture components. It includes a method to consider swelling and shrinking of wood and wood-based materials. Apart from its benefit of specifying products in a supply chain, it is rarely used in the branch nowadays. DIN 68100 is currently far away from GPS. To gain all benefits arising from GPS the branch needs a consolidated action. New symbols for drafts and an updated method for tolerancing with moisture consideration have to be developed as well as measuring dimensions of flexible work pieces, like most parts in the furniture industry. In GPS, the link between product verification and process specification is not that consistent. In other branches SPC and methods of process qualifications are established. At the moment the kitchen industry is establishing SPC or similar procedures. An action towards GPS can also accompany these efforts. Due to a shift in the tolerance principles, the GPS system is hardly directly applicable to the furniture industry, e.g. DIN 68100. But there is a real threat that the system is called up accidentally and out of ignorance. This paper sketches a comprehensive system of product specification, verification for furniture components and process qualification. It will share experience gained in the kitchen furniture industry and will add a theoretical analysis of a possible application of GPS-chains for important examples of quality characteristics. The activities are part of a process (VDI 3415-2) carried out in the working group 102 of the Society of German Engineers (VDI). KW - Geometrical Product Specification (GPS) KW - Tolerances KW - Specification and Verification KW - Process Qualification, Furniture Components Y1 - 2019 ER - TY - GEN A1 - Neumaier, Stefanie ED - Neumaier, Stefanie T1 - Hochschullehre und die digitale Architektur des 21. Jahrhunderts. Ansätze einer Weiterentwicklung des Bachelorstudiengangs Soziale Arbeit am Beispiel informatischen Denkens. KW - Interdisziplinarität; Hochschulbildung; Digitalisierung; Medienbildung Y1 - 2019 ER - TY - JOUR A1 - Kellner, Florian A1 - Utz, Sebastian T1 - Sustainability in supplier selection and order allocation: combining integer variables with Markowitz portfolio theory JF - Journal of Cleaner Production N2 - This research presents a decision support methodology for the multi-criteria supplier selection and order allocation problem. The proposed approach supports purchasing managers in assembling mid-term supplier portfolios while making them aware of the trade-offs between the supplier sustainability, the purchasing costs, and the overall supply risk. First, we propose a multi-objective optimization model with three objectives: to maximize the supplier sustainability, to select the supplier portfolio with the lowest purchasing costs, and to minimize the supply risk. Our model extends existing mathematical approaches that follow the portfolio theory fathered by H. Markowitz by integrating the aspect ‘risk’ into the supplier selection problem. Secondly, since we allow for integer variables in our model—in contrast to the classical Markowitz portfolio theory—we use the ε-constraint method to visualize the efficient surface. The possibility of considering the non-dominated set of supplier portfolios is advantageous for purchasing managers as they gain a picture of the different optimal supplier portfolios and are able to analyze the trade-offs between the different purchasing goals before making a decision. Finally, we illustrate the applicability of the proposed methodology in a real-world supplier selection and order allocation case from the automotive industry. In the example case, we identify 1754 optimal supplier portfolios that may be assembled based on the eight available suppliers. Our analyses show that each optimal portfolio consists of two suppliers, with one specific supplier being included in each portfolio. Furthermore, four suppliers are not part of any optimal solution. KW - Supplier selection KW - Sustainability KW - Graphical decision support application KW - Multi-criteria decision making KW - Order allocation KW - Supply risk Y1 - 2019 U6 - https://doi.org/10.1016/j.jclepro.2018.12.315 VL - 214 SP - 462 EP - 474 ER - TY - JOUR A1 - Kellner, Florian A1 - Schneiderbauer, Miriam T1 - Further insights into the allocation of greenhouse gas emissions to shipments in road freight transportation: the pollution routing game JF - European Journal of Operational Research N2 - At present, there is no globally accepted standard for the allocation of greenhouse gas (GHG) emissions to shipments in road freight transportation. The only official international standard for emission calculation of transport operations is the European Norm EN-16258. However, even this norm still allows choosing from several alternative emission allocation schemes. This research aims to harmonize the process of GHG declarations for supply chains by identifying among all allocation units specified by EN-16258 the one that describes a shipment's contribution to GHG emissions best. For this purpose, concepts of the cooperative game theory are used. First, we develop three transport scenarios that allow studying a shipment's effect on GHG: a vehicle routing problem, a network flow model, and a mixed scenario. Our approach extends previous research projects because we take into account that shipment characteristics in terms of origin, destination, weight, and volume consume transport capacities to different degrees, impact the routing of the commercial vehicles and, thus, determine GHG. Second, we present the results of a computational study that bases on the introduced transport scenarios and that compares the allocation vectors resulting from the EN-16258 allocation rules with the Shapley value, which serves as a benchmark for a shipment's contribution to GHG. Furthermore, we show how often the EN-16258 allocation principles are in line with a set of game theoretical fairness criteria. The results indicate that the allocation unit ‘distance’ is the closest to the game theory benchmark and most often in line with game theoretical fairness criteria. KW - OR in environment and climate change; Allocation; Road freight transportation; Cooperative game theory; EN-16258 Y1 - 2019 U6 - https://doi.org/10.1016/j.ejor.2019.04.007 VL - 278 IS - 1 SP - 296 EP - 313 ER - TY - JOUR A1 - Kellner, Florian A1 - Lienland, Bernhard A1 - Utz, Sebastian T1 - An a posteriori decision support methodology for solving the multi-criteria supplier selection problem JF - European Journal of Operational Research N2 - This research presents a novel, state-of-the-art methodology for solving a multi-criteria supplier selection problem considering risk and sustainability. It combines multi-objective optimization with the analytic network process to take into account sustainability requirements of a supplier portfolio configuration. To integrate ‘risk’ into the supplier selection problem, we develop a multi-objective optimization model based on the investment portfolio theory introduced by Markowitz. The proposed model is a non-standard portfolio selection problem with four objectives: (1) minimizing the purchasing costs, (2) selecting the supplier portfolio with the highest logistics service, (3) minimizing the supply risk, and (4) ordering as much as possible from those suppliers with outstanding sustainability performance. The optimization model, which has three linear and one quadratic objective function, is solved by an algorithm that analytically computes a set of efficient solutions and provides graphical decision support through a visualization of the complete and exactly-computed Pareto front (a posteriori approach). The possibility of computing all Pareto-optimal supplier portfolios is beneficial for decision makers as they can compare all optimal solutions at once, identify the trade-offs between the criteria, and study how the different objectives of supplier portfolio configuration may be balanced to finally choose the composition that satisfies the purchasing company's strategy best. The approach has been applied to a real-world supplier portfolio configuration case to demonstrate its applicability and to analyze how the consideration of sustainability requirements may affect the traditional supplier selection and purchasing goals in a real-life setting. KW - Supply chain management; Supplier selection; Sustainability; Logistics; Decision support systems Y1 - 2019 U6 - https://doi.org/10.1016/j.ejor.2018.06.044 VL - 272 IS - 2 SP - 505 EP - 522 ER - TY - CHAP A1 - Lukesch, Maximilian A1 - Kellner, Florian T1 - Geoinformationssysteme für Logistikmanager: Eine praxisorientierte Einführung am Beispiel der Freeware QGIS T2 - Praxishandbuch Logistik: Erfolgreiche Logistik in Industrie, Handel und Dienstleistungsunternehmen KW - Logistik KW - GIS KW - Geoinformationssysteme KW - Distributionslogistik KW - QGIS Y1 - 2019 SN - 978-3-87156-340-9 PB - Fachverlag Deutscher Wirtschaftsdienst CY - Köln ER - TY - CHAP A1 - Fleischmann, Carolin A1 - Kaumanns, Daniel A1 - Thiel, Sabine ED - Pfannstiel, Mario A. ED - Da-Cruz, Patrick ED - Schulte, Volker T1 - F&E-Internationalisierung von Big-Pharmaunternehmen in Schwellenländern T2 - Internationalisierung im Gesundheitswesen: Strategien, Lösungen, Praxisbeispiele N2 - Ziel des Beitrags ist ein integrativer Überblick sowie eine Analyse der Chancen und Risiken von F&E-Aktivitäten multinationaler Pharmaunternehmen in Schwellenländern. Dafür wurde die Literatur zu F&E-Aktivitäten von Big-Pharmaunternehmen und deren Internationalisierung in Schwellenländern systematisch ausgewertet. Das traditionelle F&E-Modell, bei dem Big-Pharmaunternehmen ihre F&E selbst und zentralisiert durchführen, wird durch neue F&E-Ansätze in den Schwellenländern ergänzt. Diese umfassen die Diversifizierung des Produktportfolios, Outsourcing und Kooperationen sowie die Entstehung von Innovationsclustern in Schwellenländern. Aus der Kombination dieser Ansätze ergeben sich drei neue Geschäftsmodelle für Big-Pharmaunternehmen. Y1 - 2019 U6 - https://doi.org/10.1007/978-3-658-23016-6_18 SP - 317 EP - 338 PB - Springer Gabler CY - Wiesbaden ER - TY - CHAP A1 - Fleischmann, Carolin A1 - Aritz, Jolanta A1 - Cardon, Peter T1 - Language Proficiency and Media Synchronicity Theory: The Impact of Media Capabilities on Satisfaction and Inclusion in Multilingual Virtual Teams T2 - Proceedings of the 52nd Hawaii International Conference on System Sciences N2 - Virtual teams that use integrated communication technologies are ubiquitous in cross-border collaboration. This study explored media use and communication performance in multilingual virtual teams. Based on surveys from 96 virtual teams (with 578 team members), the research showed that more time spent in synchronous communication channels such as online conferences increased inclusion and satisfaction. Team members with lower language proficiency felt less included in synchronous and asynchronous collaboration, whereas team members with higher language proficiency felt less satisfied with asynchronous collaboration. Also, limited language proficiency speakers were significantly less likely to view synchronous tools as helpful for their teams to reach a mutual decision. Our data supports Media Synchronicity Theory (MST) for native and highly proficient English speakers. However, MST needs to be adjusted to account for different levels of language proficiency. Y1 - 2019 UR - http://hdl.handle.net/10125/59474 ER - TY - JOUR A1 - Fleischmann, Carolin A1 - Fleischmann, Martin T1 - International orientation of professional football beyond Europe: A digital perspective on the global reach of English, German and Spanish clubs JF - Sport, Business and Management: An International Journal N2 - Purpose The purpose of this paper is to investigate how professional football clubs from the English Premier League, German Bundesliga and Spanish Primera División use digital media to expand their international reach in emerging football markets (EFM) outside of Europe. Based on the EPRG framework and Rugman’s home-region hypothesis, the aim is to broaden the perspective where “sports go global” for a further understanding of actors’ international orientation in the digital sphere. Design/methodology/approach The study is based on data from desk research and a qualitative survey, comprising information on international digital media activities of 58 European clubs. Cluster analysis is used to identify different international orientations with regard to digital media activities. Findings The data provide evidence that clubs differ strongly in their orientations towards EFM. While some global players that provide digital media content in several EFM languages and attract a large share of Facebook followers from EFM exist, other clubs focus on their home region. League-specific differences become apparent. Originality/value This study determines the international online orientations of European football clubs by combining two previously separated research streams in football management studies: internationalisation and digital media activities. Most clubs with a strong EFM fan base choose polycentric, multi-language digital media strategies, followed by geocentric, standardised approaches. By offering a novel angle on internationalisation in professional football, this study contributes towards optimising clubs’ international online strategies for EFM, which are markets that promise high growth rates. KW - Digital media KW - Emerging markets KW - Football KW - Internationalization Y1 - 2019 U6 - https://doi.org/10.1108/SBM-10-2017-0065 VL - 9 IS - 1 SP - 97 EP - 114 ER - TY - JOUR A1 - Zentgraf, Peter T1 - Ein neues Verfahren zur Modellierung linearer Systeme - Experimentelle Modellbildung mit Ein- und Ausgangsdaten T1 - A new method for modelling linear systems - Experimental modelling using input/output data JF - atp magazin N2 - Es wird ein Verfahren zum Simulieren von Vorgängen vorgestellt, das auf der Messung des Eingriffs in ein reales System und dessen gemessener Reaktion beruht. Das Verfahren ist vollständig transparent, denn die notwendigen theoretischen Voraussetzungen zum Verständnis des Verfahrens bestehen nur aus Lehrinhalten aus dem Bachelorstudium für Ingenieure: das Lösen linearer DGLs mit konstanten Koeffizienten, die Laplace-Transformation und die Methode der kleinsten Quadrate. Es kommt ohne nichtlineare Optimierer oder Iterationen aus, weil die Lösung in zwei analytischen Gleichungen ausgedrückt werden kann. Das Verfahren hat in der Praxis ein großes Einsatzspektrum, denn es ist auf stabile und instabile Systeme mit und ohne Dämpfung anwendbar. Für die Wahl des Eingangssignals gibt es keine Einschränkung und die Anfangsbedingungen können mitgeschätzt werden. Das Verfahren kann im offenen und im geschlossenen Regelkreis eingesetzt werden. N2 - A novel method is presented for simulating technical processes on the basis of measured reaction of a system excited by a known input signal. The method is fully transparent and involves only linear differential equations, Laplace transformations, and the least squares method. There is no need for a nonlinear optimizer or an algorithm requiring iterations, and the solutions can be expressed by two linear matrix equations. The method can be used for a wide range of practical applications because the initial conditions can also be estimated it is applicable for stable or unstable systems, for open or closed loop systems and for dynamic processes in progress. KW - Experimentelle Modellbildung KW - Simulation KW - Lineare DGL KW - Einfachheit KW - experiment-based modelling KW - simulation KW - linear differential equations KW - simplicity Y1 - 2019 VL - 2019 IS - 11/12 ER - TY - CHAP A1 - Zentgraf, Peter T1 - Generieren einer Streckenübertragungsfunktion aus gemessenen Ein-/Ausgangsdaten T2 - AALE 2019 - 16. Fachkonferenz "Autonome und intelligente Systeme in der Automatisierungstechnik" 28.02.2019 - 01.03.2019 in Heilbronn, Deutschland N2 - Zur Lösung einer regelungstechnischen Entwurfsaufgabe benötigt man ein Simulationsmodell der Regelstrecke. Entweder benötigt man es, weil es die meisten Entwurfsverfahren zur Bestimmung der Reglerparameter als gegeben voraussetzen oder weil man das Verhalten des Regelkreises zur Verifikation des gewünschten Verhaltens gefahrlos simulieren möchte, bevor man den Regler in dem realen geschlossenen Regelkreis verwendet. Die Motivation zur Entwicklung des hier vorgestellten Verfahrens ist es, Bachelor-Studenten der Ingenieurswissenschaften aus dem höheren Semester, die zum ersten Mal mit Regelungstechnik in Berührung kommen, ein möglichst allgemein anwendbares Verfahren zur Bildung von Streckenübertragungsfunktionen an die Hand zu geben, das von der Theorie her vollständig transparent und allein mit dem aus der Mathematik bisher Gelernten „verstehbar“ für sie ist. Grundsätzlich gibt es zwei verschiedene Arten, ein Simulationsmodell der Regelstrecke zu gewinnen: Bei der physikalischen oder theoretischen Modellbildung werden physikalische Erhaltungssätze auf den idealisierten sprich vereinfachten technischen Vorgang angewendet und nach den gewählten Ein- bzw. Ausgangssignalen umgeformt. Diese Vorgehensweise kann sehr zeitaufwendig sein und hinzukommt, dass Parameter des Modells meist unbekannt sind. Bei der experimentellen Modellbildung geht man von einem gemessenen Ein- bzw. Ausgangssignal aus und gleicht über mehr oder weniger aufwändige Optimierungsverfahren die simulierte Antwort an die gemessene Antwort an. KW - Regelungstechnik Y1 - 2019 ER - TY - CHAP A1 - Mucha, Henrik A1 - Jacobi, Ricarda A1 - Robert, Sebastian T1 - Partizipation und Künstliche Intelligenz T2 - Mensch und Computer 2019 - Workshopband N2 - Der Einsatz künstlicher Intelligenz (KI) wird unsere Lebenswirklichkeit nachhaltig beeinflussen. Mittels technischer Verfahren maschinellen Lernens oder tiefer neuronaler Netze können Modelle aus existierenden Datenbeständen gelernt und Vorhersagen abgeleitet werden. Wir stellen skizzenartig zwei aktuelle Projekte vor, die sich u.a. mit den Potentialen und der menschzentrierten Gestaltung von Systemen künstlicher Intelligenz beschäftigen. Wir betten dies schlaglichtartig in den Kontext der aktuellen Debatte über die Entwicklung und Gestaltung von KI Systemen ein. Im Zuge dessen umreißen wir Herausforderungen und Chancen für die partizipative und sozialverantwortliche Technologieentwicklung von komplexen und auf Verfahren der künstlichen Intelligenz basierenden Systemen. Schließlich fokussieren wir dabei auf die Arbeitsebene und beschreiben kurz, welche konkreten Aktivitäten wir planen und stellen diese zur Diskussion. KW - Partizipation KW - Künstliche Intelligenz KW - Design Y1 - 2021 UR - https://doi.org/10.18420/muc2019-ws-413 SP - 19 EP - 21 ER - TY - CHAP A1 - Philipp, Patrick A1 - Becker, Silvia A1 - Robert, Sebastian A1 - Hempel, Dirk A1 - Beyerer, Jürgen T1 - Modeling of Medical Treatment Processes for an Interactive Assistance Based on the Translation of UML Activities into PROforma T2 - 2019 International Conference on Computational Science and Computational Intelligence (CSCI) N2 - In modern medicine, Clinical Practice Guidelines (CPGs) are well-established resources for the appropriate treatment of diseases. Evidence-based CPGs contain recommendations which are based on the state of the art and which have been achieved by consensus of several experts. Nevertheless, there is a potential for problems in translating guideline documents into specific actions for physicians. Therefore we propose to formalize the treatment process in an understandable representation as UML activities together with a domain expert. This formalization serves as a basis for the transfer of knowledge into a model, in this case PROforma, which directly allows execution in an interactive assistance software. The results of this work are part of an ongoing research project on the treatment of colon cancer based on the corresponding evidence-based CPG. KW - Clinical Practice Guidelines KW - Medical Treatment KW - Assistance Y1 - 2021 UR - https://doi.org/10.1109/CSCI49370.2019.00184 SP - 972 EP - 976 ER - TY - CHAP A1 - Philipp, Patrick A1 - Bommersheim, Marie A1 - Robert, Sebastian A1 - Beyerer, Jürgen T1 - Probabilistic Estimation of Human Interaction Needs in Context of a Robotic Assistance in Geriatrics T2 - Current Directions in Biomedical Engineering N2 - The key purpose of assistance robots is to help people coping with work-related or everyday tasks. To ensure an intuitive and effective support by an assistance robot, its expectation conform behavior is essential. In particular, when using assistance robots in geriatrics to assist elderly patients, special attention to the human-robot interaction should be paid. In order to help elderly patients maintain their independence and abilities as much as possible, the robot should only intervene when its support is needed. Therefore, the continuous estimation of the patient’s need for interaction is of particular importance. For enabling suitable models to estimate this need, we elaborate the use of Bayesian Networks. The analysis of our results seems promising, yielding a robust and practical approach. KW - Bayesian Networks KW - Virtual Evidence KW - Robotics KW - Gerontology KW - Social Robot KW - Assistance Technology Y1 - 2021 UR - https://doi.org/10.1515/cdbme-2019-0109 SP - 433 EP - 436 ER - TY - CHAP A1 - Philipp, Patrick A1 - Morales Georgi, Rafael X. A1 - Beyerer, Jürgen A1 - Robert, Sebastian A1 - Beyerer, Jürgen T1 - Analysis of Control Flow Graphs Using Graph Convolutional Neural Networks T2 - 2019 6th International Conference on Soft Computing & Machine Intelligence (ISCMI) N2 - With the digital transformation of companies, ever larger amounts of data are generated and available for analysis. Process mining techniques can be used to extract and analyze process models from these data. Related techniques have quickly developed into an important field with constantly increasing investments in recent years. Thus, the automated analysis of processes has gained an important role in many companies. In this context, graphs have been shown to be an intuitive representation of how the gathered processes are carried out using the aforementioned techniques. For the analysis of these so-called control flow graphs, we investigate the use of convolution neural networks, which are specially designed for graphs: graph convolution networks (GCNs). In our contribution, GCNs are used to perform a regression task based on individual control flows of a process in which farmers apply for specific governmental payments. The approach achieved promising results on this publicly available data set. KW - workflow KW - process analysis KW - process mining KW - convolutional neural networks KW - digital transformation KW - control flow Y1 - 2021 UR - https://doi.org/10.1109/ISCMI47871.2019.9004296 SP - 73 EP - 77 ER - TY - THES A1 - Schöpfer, Fabian T1 - Vibroacoustics of timber-frame structures excited by structure-borne sound sources N2 - This thesis investigates the measurement and prediction of machinery noise in timber-frame buildings. To quantify the structure-borne sound power input from multi-point sources, simplified approaches were assessed that reduce the required data for out-of-plane force excitation. This identified approaches that give estimates within ±5 dB from 20 Hz to 2000 Hz. To investigative the importance of out-of-plane moment excitation, inverse methods were used to determine the power input; these were affected by noise but processing was used to overcome this shortcoming. A series of experimental investigations were carried out on a timber-frame structure undergoing mechanical point excitation. The driving-point mobility showed orthotropic plate characteristics at low frequencies, ribbed-plate characteristics in a narrow frequency band and infinite plate characteristics in mid- and high-frequency ranges. The moment mobility above or in-between studs was similar to infinite beam or plate theory with interpolation between these theories where necessary. The experimental work indicated the potential to use Statistical Energy Analysis (SEA) to predict sound transmission. The first experimental finding was that above the mass-spring-mass resonance frequency, the vibrational response of the wall leaves was uncorrelated. The second was a significant decrease in vibration across the wall from the excitation point, with structural intensity showing a decrease in net power flow across successive timber studs. The third was that tongue and groove connections between chipboard sheets significantly reduce the vibration transmission above 500 Hz. This led to different SEA models being used to model a timber-frame wall undergoing mechanical point excitation. A 41-subsystem model was found to be necessary to reproduce the measured vibration levels on both leaves within 10 dB. As there is a significant decrease in vibration with distance in the mid- and high-frequency range, the region close to the excitation point is particularly important and the SEA model has better accuracy in this region. An alternative engineering approach to the prediction of machinery noise in timber-frame buildings was introduced and validated that used measured transmission functions between the injected power and the spatial-average sound pressure level in a receiving room. A field survey and case studies indicate this is a feasible and practical approach. KW - acoustics KW - building acoustics KW - timber-frame KW - construction KW - structural acoustics KW - structure-borne sound KW - machinery noise Y1 - 2019 UR - https://doi.org/10.17638/03033463 ER - TY - CHAP A1 - Solf-Leipold, Barbara T1 - Bürgerhilfen im lokalen Versorgungsmix - Kooperations- und Koproduktionsmöglichkeiten in unterschiedlichen Assoziationsformen T2 - Soziale Innovationen: Alter(n) in ländlichen Räumen KW - Wohlfahrtspluralismus, Selbstorganisation, Bürgerschaftliches Engagement, kommunale Sozialpolitik, Y1 - 2019 SP - 155 EP - 168 PB - kassel university press CY - Kassel ER - TY - CHAP A1 - Solf-Leipold, Barbara A1 - Alisch, Monika A1 - Ritter, Martina A1 - Rubin, Yvonne T1 - Demokratische Partizipation im Alltag: Potenziale und Grenzen der Selbstorganisation T2 - Demokratie und Soziale Arbeit KW - Partizipation, Selbstorganisation, Bürgerschaftliches Engagement, Seniorengenossenschaft Y1 - 2019 SP - 133 EP - 141 PB - Verlag Barbara Budrich CY - Opladen ER - TY - CHAP ED - Botzum, Edeltraud ED - Remsperger-Kehm, Regina T1 - Betreuung von Kleinstkindern. Qualität von Anfang an in Krippe, Kindergarten und Kita. 19. Lieferung, Lerngeschichten. KW - Betreuung KW - Kindergarten KW - Kita KW - Kleinstkinder KW - Krippe Y1 - 2019 PB - Carl Link CY - Kronach ER - TY - CHAP ED - Botzum, Edeltraud ED - Remsperger-Kehm, Regina T1 - Betreuung von Kleinstkindern. Qualität von Anfang an in Krippe, Kindergarten und Kita. 20. Lieferung, Management-Kompetenzen. KW - Betreuung KW - Kindergarten KW - Kita KW - Kleinstkinder KW - Krippe Y1 - 2019 PB - Carl Link CY - Kronach ER - TY - CHAP ED - Botzum, Edeltraud ED - Remsperger-Kehm, Regina T1 - Betreuung von Kleinstkindern. Qualität von Anfang an in Krippe, Kindergarten und Kita. 21. Lieferung, Ruheinsel Krippe. KW - Betreuung KW - Kindergarten KW - Kita KW - Kleinstkinder KW - Krippe Y1 - 2019 PB - Carl Link CY - Kronach ER - TY - JOUR A1 - Aslan, Alp A1 - John, Thomas T1 - Part-list cuing effects in younger and older adults’ episodic recall JF - Psychology and Aging N2 - Providing a subset of previously studied items as retrieval cues can both impair and improve memory for the remaining items. Here, we investigated such part-list cuing effects in younger and older adults’ episodic recall, using listwise directed forgetting to manipulate study context access at test. When context access was maintained, part-list cuing impaired recall regardless of age. In contrast, when context access was impaired, part-list cuing improved recall in younger but not in older adults. The results are consistent with the proposal that older adults show intact inhibition and blocking of competing information, but reduced capability for episodic context reactivation. KW - part-list cuing effects Y1 - 2021 UR - https://doi.org/10.1037/pag0000268 VL - 34 IS - 2 SP - 262 EP - 267 ER - TY - CHAP A1 - Wirnsberger, Markus A1 - Küfner, Marcel A1 - Krause, Harald T1 - Ventilation Efficiency Of Push-Pull Ventilation Systems In Residential Buildings – CFD Simulation And Validation Of The Model With Measurements In A Research Apartment T2 - Proceedings of the 16th IBPSA Conference Rome, Italy, Sept. 2-4, 2019 N2 - In the project, domestic ventilation concepts with PushPull-Fans were investigated. These ventilation units are characterized by a periodically changing supply and exhaust air operation. To ensure balanced operation, these ventilation units are always used in pairs, with one unit being in the exhaust air mode and the other in supply air mode. Measurements were made in a research apartment. The results were used to validate a CFD simulation model for transient studies. A room-by-room layout with two units in one room and a cross-room ventilation layout with two connected units in two rooms were analysed. The age of air was used as the evaluation parameter. With the room-by-room ventilation layout a lower age of air in the bedroom compared to the cross-room layout was obtained. However, in the room-by-room layout, the air flow through the larger living room with connected corridor was poorer in the rear area. With the cross-room layout, the flow through the rooms was more uniform. With the cross-room layout, the average age of air in the apartment could be slightly reduced compared to the room-by-room layout. KW - domestic ventilation concepts Y1 - 2019 UR - https://doi.org/10.26868/25222708.2019.211281 SP - 785 EP - 790 ER - TY - JOUR A1 - Hacker, Bernd A1 - Spanheimer, Jürgen A1 - Weides, Dorothee T1 - Erleichterungen zur Anwendung von Hedge Accounting im Lichte der IBOR-Reform JF - NWB Internationale Rechnungslegung – PiR KW - IBOR KW - IFRS KW - Hedge Accounting Y1 - 2021 VL - 4 IS - 10 SP - 285 EP - 289 PB - nwb-Verlag CY - Herne ER - TY - JOUR A1 - Hacker, Bernd A1 - Rönsch, Daniela T1 - Empirische Untersuchung zur Aktivierung von Verlustvorträgen in Deutschland JF - Zeitschrift für Internationale Rechnungslegung – IRZ KW - IFRS KW - Verlustvorträge KW - Steuern Y1 - 2021 VL - 14 IS - 10 SP - 443 EP - 449 PB - Beck CY - München ER - TY - JOUR A1 - Hacker, Bernd A1 - Schäfer, Michael T1 - Behavioral Finance – Anlegerverhalten zwischen Rationalität und Emotion JF - Bank und Markt - Zeitschrift für Banking KW - Behavioral Finance KW - Anlegerverhalten KW - Banking Y1 - 2021 VL - 48 IS - 4 SP - 179 EP - 183 PB - Verlagsgruppe Knapp - Richardi - Verlag für Absatzwirtschaft CY - Frankfurt a.M. ER - TY - JOUR A1 - Hacker, Bernd A1 - Gumberger, Jessica T1 - Managervergütung – In der Diskussion (WISU Kompakt) JF - WISU - Das Wirtschaftsstudium KW - Principal-Agent Theorie KW - Managervergütung Y1 - 2021 IS - 2 SP - 183 EP - 185 PB - Lange Verlag CY - Düsseldorf ER - TY - JOUR A1 - Langdon-Arms, Samuel A1 - Gschwendtner, Michael A1 - Neumaier, Martin T1 - Rayleigh-Taylor instability in oscillating liquid pistons JF - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science N2 - In this study, an experimental apparatus is used to excite four U-tube-shaped liquid pistons connected in series, and to study their behaviour. Some of the gas spaces are heated to induce piston oscillations; in others, gas expansion is utilised to produce a refrigeration effect. It was discovered that the liquid piston surface would become unstable and turbulent at relatively low gas charge pressures (2 bar–3 bar). Cylindrical polyethylene floats were employed at each piston surface in order to reduce the area of the free surface of each piston and allow experiments to be conducted over a wide range of operating conditions. Experiments were carried out using gas charge pressures in the range of 1 bar–6 bar. The resulting liquid piston oscillations were measured and analysed to assess the impact of any developing piston instability. Evidence of a liquid piston acceleration limit, likely resulting from the Rayleigh-Taylor instability phenomenon, is consistently observed during the experiments. The use of submerged polyethylene piston floats is found to increase the surface stability and enable maximum accelerations of 25 ms−2 to 30 ms−2. KW - Liquid pistons KW - free pistons KW - Siemens configuration KW - Rayleigh-Taylor instability in liquid pistons KW - liquid piston surface stability KW - liquid piston stability KW - liquid piston surface floats Y1 - 2019 UR - https://doi.org/10.1177/0954406218768836 VL - 233 IS - 4 SP - 1236 EP - 1245 ER - TY - JOUR A1 - Hagedorn, Gregor A1 - Loew, Thomas A1 - Seneviratne, Sonia I. A1 - Lucht, Wolfgang A1 - Beck, Marie-Luise A1 - Hesse, Janina A1 - Knutti, Reto A1 - Quaschning, Volker A1 - Schleimer, Jan-Hendrik A1 - Mattauch, Linus A1 - Breyer, Christian A1 - Hübener, Heike A1 - Kirchengast, Gottfried A1 - Chodura, Alice A1 - Clausen, Jens A1 - Creutzig, Felix A1 - Darbi, Marianne A1 - Daub, Claus-Heinrich A1 - Ekardt, Felix A1 - Göpel, Maja A1 - Hardt, Judith N. A1 - Hertin, Julia A1 - Hickler, Thomas A1 - Köhncke, Arnulf A1 - Köster, Stephan A1 - Krohmer, Julia A1 - Kromp-Kolb, Helga A1 - Leinfelder, Reinhold A1 - Mederake, Linda A1 - Neuhaus, Michael A1 - Rahmstorf, Stefan A1 - Schmidt, Christine A1 - Schneider, Christoph A1 - Schneider, Gerhard A1 - Seppelt, Ralf A1 - Spindler, Uli A1 - Springmann, Marco A1 - Staab, Katharina A1 - Stocker, Thomas F. A1 - Steininger, Karl A1 - von Hirschhausen, Eckart A1 - Winter, Susanne A1 - Wittau, Martin A1 - Zens, Josef T1 - The concerns of the young protesters are justified: A statement by Scientists for Future concerning the protests for more climate protection JF - GAIA - Ecological Perspectives for Science and Society N2 - In March 2019, German-speaking scientists and scholars calling themselves Scientists for Future, published a statement in support of the youth protesters in Germany, Austria, and Switzerland (Fridays for Future, Klimastreik/Climate Strike), verifying the scientific evidence that the youth protestors refer to. In this article, they provide the full text of the statement, including the list of supporting facts (in both English and German) as well as an analysis of the results and impacts of the statement. Furthermore, they reflect on the challenges for scientists and scholars who feel a dual responsibility: on the one hand, to remain independent and politically neutral, and, on the other hand, to inform and warn societies of the dangers that lie ahead. KW - Fridays for Future Y1 - 2019 UR - https://doi.org/10.14512/gaia.28.2.3 VL - 28 IS - 2 SP - 79 EP - 87 ER - TY - CHAP A1 - Dechant, Eduard A1 - Seliger, Norbert A1 - Kennel, Ralph T1 - Performance of a GaN Half Bridge Switching Cell with Substrate Integrated Chips T2 - PCIM Europe 2019 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nürnberg N2 - Wide-bandgap semiconductors such as Silicon Carbide (SiC) or Gallium Nitride (GaN) enable fast switching and high switching frequencies of power electronics. However, this potential can not be exploited due to limitations caused by parasitic elements of packaging and interconnections. This paper shows a possibility to minimize parasitic elements of a half-bridge switching cell with 650 V GaN dies integrated into a printed circuit substrate. A sub-nH commutation loop of 0.5 nH inductance gives superior switching characteristics compared to circuits with packaged dies. Simulation and experimental results of an inverse double pulse test confirm our expectations. This study further reveals additional benefits of the proposed technology in terms of mechanical stability and thermal interfacing to heat sinks compared to circuits with packaged dies. KW - half bridge switching cell Y1 - 2019 ER - TY - JOUR A1 - Dechant, Eduard A1 - Seliger, Norbert A1 - Kennel, Ralph T1 - Power cycling and temperature endurance test of a GaN switching cell with substrate integrated chips JF - Microelectronics Reliability N2 - We present a reliability study of a half-bridge switching cell with substrate integrated 650 V GaN HEMTs. Power Cycling Testing with a ΔTj of 100 K has revealed thermo-mechanically induced failures of contact vias after more than 220 kcycles. The via failure mode of contact opening is confirmed by reverse-bias pulsed IV-measurements to be primarily triggered by a ΔTj imposed thermal gradient and not by a high Tj. The chip electrical characteristics, however, remained unaffected during Power Cycling. Furthermore, a High Temperature Storage test at 125 °C for 5000 h has shown no changes in the electrical performance of substrate integrated GaN HEMTs. KW - switching cell Y1 - 2019 UR - https://doi.org/10.1016/j.microrel.2019.06.064 VL - 100-101 SP - 113372 ER - TY - CHAP A1 - Dechant, Eduard A1 - Seliger, Norbert A1 - Kennel, Ralph T1 - A study of dielectric breakdown of a half-bridge switching cell with substrate integrated 650V GaN dies T2 - 2019 IEEE International Workshop on Integrated Power Packaging (IWIPP), Toulouse, France N2 - This paper proposes an ultra-low inductance half-bridge switching cell with substrate integrated 650V GaN bare dies. A vertical parallel-plate waveguide structure with 100 μm layer thickness results in a commutation loop inductance of 0.5 nH resulting in a negligible drain-source voltage overshoot in the inductive load standard pulse test. On the other hand reliable circuit operation requires an assessment of the isolation strength of the thin dielectric layer in the main commutation loop, because critical high local electric fields might occur between the pads. Measurements of the dielectric breakdown voltage followed by a statistical failure analysis provide a characteristic life of 14.7 kV and a 10% quantile of 13.5kV in the Weibull fitted data. This characteristic life depends strongly on the ambient temperature and drops to 4.1kV at 125°C. Additionally, ageing tests show an increasing in dielectric breakdown voltage after 500h, 1000h and 2000h at 125°C high-temperature storage due to resin densification processes. KW - half-bridge switching cell Y1 - 2019 UR - https://doi.org/10.1109/IWIPP.2019.8799104 ER - TY - CHAP A1 - Höllthaler, Julia A1 - Hagl, Rainer A1 - Kennel, Ralph T1 - Bandwidth Improvements for Current Control Loops with a 100 kHz PWM Frequency and GaN Power Semiconductors T2 - 2019 58th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE), Hiroshima, Japan N2 - A discrete-time design method for a robust current controller of a servo drive has been developed. It takes the sampling time, the processing dead time and the dynamic behavior of the A/D converter into account. The theoretical calculations are verified using a test stand for high dynamics. The test stand includes a voice coil motor and power electronics with Gallium Nitride (GaN) power semiconductors for switching frequencies of more than 100 kHz. The bandwidth of the current control loop can be improved from typically 1 kHz to 1.5 kHz with insulated-gate bipolar transistor (IGBT) power semiconductors in state-of-the-art motion control systems to 10 kHz and more. KW - bandwidth KW - current control KW - servo drives KW - GaN power semiconductors KW - FPGA Y1 - 2019 UR - https://doi.org/10.23919/SICE.2019.8859873 ER - TY - CHAP A1 - Höllthaler, Julia A1 - Hagl, Rainer A1 - Kennel, Ralph T1 - Bandwidth Improvements of Linear Direct Drives with a 100 kHz PWM-Frequency T2 - 2019 12th International Symposium on Linear Drives for Industry Applications (LDIA), Neuchatel, Switzerland N2 - A calculation method for a robust servo controller design depending on the sampling time and the processing dead time was developed for mechanically stiff drives. With a test stand for high dynamic and high positioning accuracy, the theoretical calculations for the high bandwidth improvements are verified. The test stand includes a voice coil motor and a power electronic with Gallium Nitride (GaN) power semiconductors for switching frequencies of more than 100kHz. KW - bandwidth KW - position control KW - linear servo drives KW - GaN power semiconductors KW - FPGA Y1 - 2019 UR - https://doi.org/10.1109/LDIA.2019.8771013 ER -