TY - JOUR A1 - Schweser, Thomas T1 - Generalized hypergraph coloring JF - Discussiones Mathematicae Graph Theory Y1 - 2025 U6 - https://doi.org/10.7151/dmgt.2168 VL - 41 IS - 1 SP - 103 EP - 121 ER - TY - JOUR A1 - Eisingerich, Andreas B. A1 - MacInnis, Deborah J. A1 - Fleischmann, Martin T1 - Moving Beyond Trust: Making Customers Trust, Love, and Respect a Brand JF - MIT Sloan Management Review KW - branding, brand trust, brand love, brand respect Y1 - 2025 VL - 2021 ER - TY - CHAP A1 - Horstmannshoff, Caren A1 - Sollfrank, Tobias A1 - Müller, Martin T1 - Intuitive interaction with cooperative assistance robots for the 3rd and 4th age: the KoBo34-project: How did we aim to actively involve all potential stakeholders? T2 - International Research Week, Technical University of Applied Sciences Rosenheim KW - patient involvement KW - participatory research KW - human-robot-interaction KW - intuitive interaction KW - cooperative assistance robot Y1 - 2024 ER - TY - GEN A1 - Wee, K.E. A1 - Ott, Holly C. A1 - Cheah, S.M. T1 - Bottlenecks and Batching in Dragon Fruit Jam Production KW - Capacity Management Y1 - 2024 PB - Harvard Business Publishing ER - TY - CHAP A1 - Hilverkus, Johannes A1 - Markl, Markus A1 - Hagl, Rainer A1 - Kennel, Ralph T1 - Influence of Frequency Dependent Motor Resistance and Inductance on the Current Control Loop Design of Servo Drives T2 - 2021 IEEE 30th International Symposium on Industrial Electronics (ISIE) N2 - Servo drives in production machines are either position-, speed-, force- or torque-controlled. As the motor current is proportional to torque or force, the current control loop dynamics is crucial for all operating modes. In production machines used in the semiconductor industry, it is particularly important that the bandwidths of the control loops are continuously increased. It is thus important to take the dependency of motor resistance and inductance on frequency in control loop design into consideration. As the switching frequencies of wide-bandgap semiconductors increase, the effect becomes even more significant. This paper discusses the influence of frequency-dependent resistance and inductance on the behavior of a PI current controller. A design method for an optimized and robust current controller is then presented on this basis. Verification is performed with two completely different servo motors-a 3-phase permanent magnet synchronous motor and a high-dynamic optimized voice-coil motor. Y1 - 2021 U6 - https://doi.org/10.1109/ISIE45552.2021.9576370 SP - 1 EP - 7 ER - TY - CHAP A1 - Rabold, Andreas A1 - Schanda, Ulrich T1 - Prediction method to prove requirements on impact spound insulation of timber floors with special consideration of low frequencies T2 - Proceedings of ICSV27 Y1 - 2021 ER - TY - CHAP A1 - Châteauvieux-Hellwig, Camille A1 - Schanda, Ulrich A1 - Geladze, Ekaterine A1 - Schöpfer, Fabian A1 - Frischmann, Felix A1 - Rabold, Andreas A1 - Mayr, Andreas R. T1 - An open BIM workflow for the prediction of sound insulation in timber constructions T2 - Proceedings of Euronoise 2021 KW - HolzLeichtBau KW - Holzmassivbau KW - Luftschalldämmung KW - BIM KW - Trittschalldämmung Y1 - 2021 ER - TY - INPR A1 - Böhm, Stefan-Andreas A1 - Neumayer, Martin A1 - Kramer, Oliver A1 - Schiendorfer, Alexander A1 - Knoll, Alois T1 - Comparing Heuristics, Constraint Optimization, and Reinforcement Learning for an Industrial 2D Packing Problem N2 - Cutting and Packing problems are occurring in different industries with a direct impact on the revenue of businesses. Generally, the goal in Cutting and Packing is to assign a set of smaller objects to a set of larger objects. To solve Cutting and Packing problems, practitioners can resort to heuristic and exact methodologies. Lately, machine learning is increasingly used for solving such problems. This paper considers a 2D packing problem from the furniture industry, where a set of wooden workpieces must be assigned to different modules of a trolley in the most space-saving way. We present an experimental setup to compare heuristics, constraint optimization, and deep reinforcement learning for the given problem. The used methodologies and their results get collated in terms of their solution quality and runtime. In the given use case a greedy heuristic produces optimal results and outperforms the other approaches in terms of runtime. Constraint optimization also produces optimal results but requires more time to perform. The deep reinforcement learning approach did not always produce optimal or even feasible solutions. While we assume this could be remedied with more training, considering the good results with the heuristic, deep reinforcement learning seems to be a bad fit for the given use case. KW - Computer Science - Artificial Intelligence Y1 - 2021 U6 - https://doi.org/10.48550/arXiv.2110.14535 ER - TY - CHAP A1 - Weber, Susanne A1 - Draxler, Clemens A1 - Achtenhagen, Frank A1 - Bley, Sandra A1 - Wiethe-Körprich, Michaela A1 - Kreuzer, Christine A1 - Can, Gürer T1 - Chapter 13 Measuring Apprentices‘ Intrapreneurship Competence in Vocational Education and Training (VET): An Interdisciplinary Model-Based Assessment T2 - Good Teachers for Tomorrow’s Schools N2 - Teachers should be able to balance content knowledge, pedagogical knowledge and technological knowledge (TPACK) in their various activities on curriculum, instruction, and assessment. Our Germany-wide study focused on measuring intrapreneurship competence. To ensure a valid and reliable assessment, we followed the three-step assessment triangle: cognition, observation and interpretation. We modeled the intended IP competence as an interdisciplinary and interprofessional team, designed a technology-based performance assessment tool that uses authentic work tasks, and analyzed apprentices’ behavior via a model-based IRT (Rasch model) approach. Our results identify the distribution of the IP competence of apprentices on four proficiency levels. Since these results are generalizable, single IP tasks can be used by teachers to support and guide apprentices individually with regard to these proficiency levels. Our approach is a blueprint for evidence-based teaching that tackles all areas of TPACK. KW - teacher education Y1 - 2021 U6 - https://doi.org/10.1163/9789004465008_014 SP - 257 EP - 279 PB - Brill CY - Leiden ER - TY - JOUR A1 - Rosière, C. A. A1 - Santos, J. O. S. A1 - Silveira Braga, F. A1 - Hensler, Ana-Sophie A1 - Rolim, V. K. A1 - Bekker, A. T1 - Multiple Hydrothermal Iron-Formation Upgrading Events in Southeastern São Francisco Craton JF - The Journal of Geology N2 - Large-scale, hypogene iron mineralization systems developed recurrently in the São Francisco craton in association with two orogenies. During the ca. 2.1–2.0 Ga Trans-Amazonian orogeny, low-temperature and low-to-moderate-salinity metamorphic fluids resulted in carbonatization-related iron enrichment of the early Paleoproterozoic Cauê Iron Formation (IF) of the Minas Supergroup (MSG) as well as short-distance iron mobilization. Monazite from the iron-oxide veins yielded a SHRIMP 232Th/208Pb date corresponding to fluid circulation coeval with the migmatization of the Archean tonalite-trondhjemite-granodiorite crust. During the Ediacaran to Cambrian Brasiliano orogeny, when the São Francisco craton was consolidated in its present configuration, hydrothermal fluids repeatedly mineralized the Cauê IF and the younger IFs of the lower Espinhaço Supergroup. Far-field hydrothermal alteration associated with distinct Fe mineralization episodes widely affected Meso- to Neoproterozoic sequences as well as Archean to Paleoproterozoic terranes of the cratonic core. Circulation of hydrothermal fluids during the Brasiliano orogeny caused desilicification, iron mobilization, and widespread alteration of the rocks. The alteration events are dated with monazite and xenotime intergrown with hematite, anatase, and recrystallized rims of detrital zircons from interlayered quartzites and of igneous zircons from pegmatites, granites, acidic volcanic rocks, and orthogneisses, yielding U-Pb dates between 542 and 493 Ma. U-Pb dates point to five Cambrian hydrothermal events from the waning stages to the aftermath of the Brasiliano orogeny. These hydrothermal fluid circulation events correspond to the emplacement ages of four granite suites and pegmatites that lasted from the final stages of the collision to the collapse of the Araçuaí-West Congo orogen. Episodic circulation of fluids continued for approximately 2 billion years after IF deposition on the eastern São Francisco craton with the formation of high-grade iron ore deposits and resetting of the IF trace-element inventory. KW - iron ore mineralogy KW - geochronology KW - hydrothermal iron ore Y1 - 2021 U6 - https://doi.org/10.1086/715242 VL - 129 IS - 3 SP - 283 EP - 296 PB - The University of Chicago Press CY - Chicago ER - TY - JOUR A1 - Friese, Philipp A. A1 - Michalk, Wibke A1 - Fischer, Markus A1 - Hardt, Cornelius A1 - Bogenberger, Klaus T1 - Charging Point Usage in Germany—Automated Retrieval, Analysis, and Usage Types Explained JF - Sustainability N2 - This study presents an approach to collect and classify usage data of public charging infrastructure in order to predict usage based on socio-demographic data within a city. The approach comprises data acquisition and a two-step machine learning approach, classifying and predicting usage behavior. Data is acquired by gathering information on charging points from publicly available sources. The first machine learning step identifies four relevant usage patterns from the gathered data using an agglomerative clustering approach. The second step utilizes a Random Forest Classification to predict usage patterns from socio-demographic factors in a spatial context. This approach allows to predict usage behavior at locations for potential new charging points. Applying the presented approach to Munich, a large city in Germany, results confirm the adaptability in complex urban environments. Visualizing the spatial distribution of the predicted usage patterns shows the prevalence of different patterns throughout the city. The presented approach helps municipalities and charging infrastructure operators to identify areas with certain usage patterns and, hence different technical requirements, to optimize the charging infrastructure in order to help meeting the increasing demand of electric mobility. KW - charging infrastructure KW - electric mobility KW - usage types KW - analysis KW - automated retrieval KW - clustering KW - machine learning KW - socio-demographic data KW - usage prediction Y1 - 2021 U6 - https://doi.org/10.3390/su132313046 VL - 13 IS - 23 PB - MDPI ER - TY - JOUR A1 - Engler, Benjamin A1 - Hoffmann, S. A1 - Zscheile, Matthias T1 - Rubber tracked bogie-axles with supportive rollers–a new undercarriage concept for log extraction on sensitive soils JF - International Journal of Forest Engineering N2 - Driving forest machines on wet soils causes irreversible soil compaction, often associated with intensive rut formation and inaccessibility of wheeled forest machines for future forest operations. The German forestry equipment manufacturer FHS, Forsttechnik Handel & Service GmbH, engineered a forwarder, the Trac 81/11, equipped with conventional, well-proved bogie-axles embraced by a closed rubber track. At the center of the bogie-axle, four additional supportive rollers are placed to increase the load-carrying section between the tires of the bogie-axle. The study aimed to characterize the principle concept and the trafficability of the forwarder by analyzing the footprint area, the contact pressure, the rut formation on forest sites and the slippage during driving. Therefore, the effective contact area was measured on steel plates and rut formation was analyzed on a case study basis. Results showed that the supportive rollers increase the contact surface area by about 1/3. By this, a decrease of peak loads below the wheels and a more homogenous load distribution were observed. However, the contact surface area is still clearly divided into three parts; the area between the supportive rollers and the wheels does not take any load. Results of the rut formation were diverse: After 20 passes with 26,700 kg total mass, rut depth varied between 12.6 and 212.5 mm. Overall, the new undercarriage concept of FHS demonstrated a generally positive performance. The engineered forwarder contributes to reduce the environmental impact associated with log extraction. KW - Rut formation KW - rubber track KW - soil disturbance KW - ground pressure Y1 - 2021 U6 - https://doi.org/10.1080/14942119.2021.1834814 PB - Taylor & Francis ER - TY - CHAP A1 - Kammerer, Matthias A1 - Lang, Roman A1 - Lindner, Johannes A. ED - Dechema, T1 - Nutzung der dynamischen Mischtechnik für intelligente Prozesse T2 - Jahrestreffen der ProcessNet-Fachgruppen Lebensmittelverfahrenstechnik, Mischvorgänge und Grenzflächenbestimmte Systeme und Prozesse 2021 Y1 - 2023 ER - TY - CHAP A1 - Wörthmann, Mario A1 - Lindner, Johannes A. A1 - Briesen, Heiko ED - Dechema, T1 - Gezieltes Einstellen der Schutzwirkung homogener Schmelzcoatings T2 - Jahrestreffen der ProcessNet-Fachgruppen Lebensmittelverfahrenstechnik, Mischvorgänge und Grenzflächenbestimmte Systeme und Prozesse 2021 Y1 - 2023 ER - TY - CHAP A1 - Leiter, Nina A1 - Wohlschläger, Maximilian A1 - Auer, Veronika A1 - Versen, Martin A1 - Laforsch, Christian T1 - An algorithmic method to identify multiple wood species in a single image by their specific fluorescence lifetimes T2 - OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP) (2021), paper CF2B.3 N2 - Fluorescence lifetime imaging microscopy (FLIM) combined with an image processing algorithm is successfully used for the optical identification and areal separation of three wood species of maple, larch and nut in a single taken image. Y1 - 2021 U6 - https://doi.org/10.1364/COSI.2021.CF2B.3 SP - CF2B.3 ER - TY - CHAP A1 - Wohlschläger, Maximilian A1 - Holst, Gerhard A1 - Versen, Martin A1 - Laforsch, Christian T1 - An optical method to differentiate wood from polymers using fluorescence lifetime imaging microscopy T2 - OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES) (2021), paper EW4G.6 N2 - In this contribution investigations with fluorescence lifetime imaging microscopy (FLIM) are made to optically distinguish polymers and wood. The results show that the distinction and identification is possible in a graphical and calculative way. Y1 - 2021 U6 - https://doi.org/10.1364/ES.2021.EW4G.6 SP - EW4G.6 ER - TY - JOUR A1 - Kellner, Florian T1 - Exploring the impact of urbanization on consumer goods distribution networks JF - Journal of Asian Business and Economic Studies N2 - Purpose Due to the growing percentage share of urban dwellers, the physical distribution of products faces altering conditions. This research explores the effects that urbanization has on the performance of a fast-moving consumer goods distribution network. A focus is set on changes in distribution cost, the cost-minimal network design, and greenhouse gas emissions. Design/methodology/approach The analyses are based on a quantitative distribution network model of an existing manufacturer of consumer goods. Findings The results indicate that the foreseen population shift will affect the network's economic and environmental performance. Effects are, among others, due to differences in the efficiency of supplying urban and nonurban regions. The combined effects of urbanization and the development of the population size will even more affect the network's performance. Originality/value Research dealing with distribution logistics and urbanization primarily focuses on city logistics. In this paper, the object of analysis is the entire distribution system. KW - Distribution network KW - Distribution logistics KW - Urbanization KW - Fast-moving consumer goods Y1 - 2021 U6 - https://doi.org/10.1108/JABES-12-2019-0127 VL - 28 IS - 2 SP - 101 EP - 120 ER - TY - JOUR A1 - Kunkler, Jan A1 - Braun, Maximilian A1 - Kellner, Florian T1 - Speed Limit Induced CO2 Reduction on Motorways: Enhancing Discussion Transparency through Data Enrichment of Road Networks JF - Sustainability N2 - Considering climate change, recent political debates often focus on measures to reduce CO2 emissions. One key component is the reduction of emissions produced by motorized vehicles. Since the amount of emission directly correlates to the velocity of a vehicle via energy consumption factors, a general speed limit is often proposed. This article presents a methodology to combine openly available topology data of road networks from OpenStreetMap (OSM) with pay-per-use API traffic data from TomTom to evaluate such measures transparently by analyzing historical real-world circumstances. From our exemplary case study of the German motorway network, we derive that most parts of the motorway network on average do not reach their maximum allowed speed throughout the day due to traffic, construction sites and general road utilization by network participants. Nonetheless our findings prove that the introduction of a speed limit of 120 km per hour on the German autobahn would restrict 50.74% of network flow kilometers for a CO2 reduction of 7.43% compared to the unrestricted state. KW - road network analysis; CO2 emissions; speed limits; traffic; navigation services Y1 - 2021 U6 - https://doi.org/10.3390/su13010395 VL - 13 IS - 1 SP - 395 ER - TY - JOUR A1 - Kellner, Florian A1 - Lienland, Bernhard A1 - Utz, Sebastian T1 - A multi-criteria decision-making approach for assembling optimal powertrain technology portfolios in low GHG emission environments JF - Journal of Industrial Ecology N2 - Environmental regulations force car manufacturers to renew the powertrain technology portfolio offered to the customer to comply with greenhouse gas (GHG) emission targets. In turn, automotive companies face the task of identifying the “right” powertrain technology portfolio consisting of, for example, internal combustion engines and electric vehicles, because the selection of a particular powertrain technology portfolio affects different company targets simultaneously. What makes this decision even more challenging is that future market shares of the different technologies are uncertain. Our research presents a new decision-support approach for assembling optimal powertrain technology portfolios while making decision-makers aware of the trade-offs between the achievable profit, the achievable market share, the market share risk, and the GHG emissions generated by the selected vehicle fleet. The proposed approach combines “a posteriori” decision-making with multi-objective optimization. In an application case, we feed the outlooks of selected market studies into the proposed decision-support system. The result is a visualization and analysis of the current real-world decision-making problem faced by many automotive companies. Our findings indicate that for the proposed GHG restriction at work in 2030 in the European Union, no optimal powertrain technology portfolio with less than 35% of vehicles equipped with an electric motor exists. KW - automotive sector KW - decision-support system KW - industrial ecology KW - portfolio optimization KW - power-train technologies KW - technology selection Y1 - 2021 U6 - https://doi.org/10.1111/jiec.13148 VL - 25 IS - 6 SP - 1412 EP - 1429 ER - TY - CHAP A1 - Fleischmann, Carolin A1 - Cardon, Peter A1 - Aritz, Jolanta T1 - Acceptance of Speech-to-Text Technology: Exploring Language Proficiency and Psychological Safety in Global Virtual Teams T2 - Proceedings of the 54th Hawaii International Conference on System Sciences N2 - Natural Language Processing, such as speech-to-text technology, is increasingly implemented in collaboration software that is used by global virtual teams (GVT). GVT collaboration has become ubiquitous and has additionally accelerated during the COVID-19 pandemic. The main issues of global virtual teams are technology difficulties, language and time zone differences, and lower levels of psychological safety. Advances in collaboration technology aim at improving collaboration for GVT. But we know little about the acceptance of these technologies. Therefore, the objective of this study is to explore how Millennial and Gen Z members of GVT accept speech-to-text technology; namely, automated captions in virtual conferences and automated meetings transcripts. Particularly, we are comparing antecedents of acceptance across levels of language proficiency and psychological safety. We surveyed 530 users of speech-to-text technology in GVT both before and after they used the technology. The pre-survey was administered before the COVID-19 pandemic hit; when participants completed the post-survey all were under some degree of lockdown. Results suggest that use of the technology reduces anxiety and effort, but decreases performance expectation and hedonic motivation. Non-native speakers rate the technology more positively. The impact of psychological safety is limited to self-efficacy and anxiety. Y1 - 2021 UR - http://hdl.handle.net/10125/70660 SP - 411 ER - TY - CHAP A1 - Cardon, Peter A1 - Ma, Haibing A1 - Fleischmann, Carolin A1 - Aritz, Jolanta T1 - Recorded Work Meetings and Algorithmic Tools: Anticipated Boundary Turbulence T2 - Proceedings of the 54th Hawaii International Conference on System Sciences N2 - Meeting recordings and algorithmic tools that process and evaluate recorded meeting data may provide many new opportunities for employees, teams, and organizations. Yet, the use of this data raises important consent, data use, and privacy issues. The purpose of this research is to identify key tensions that should be addressed in organizational policymaking about data use from recorded work meetings. Based on interviews with 50 professionals in the United States, China, and Germany, we identify the following five key tensions (anticipated boundary turbulence) that should be addressed in a social contract approach to organizational policymaking for data use of recorded work meetings: disruption versus help in relationships, privacy versus transparency, employee control versus management control, learning versus evaluation, and trust in AI versus trust in people. Y1 - 2021 UR - http://hdl.handle.net/10125/70633 SP - 196 ER - TY - JOUR A1 - Cardon, Peter W. A1 - Ma, Haibing A1 - Fleischmann, Carolin T1 - Recorded Business Meetings and AI Algorithmic Tools: Negotiating Privacy Concerns, Psychological Safety, and Control JF - International Journal of Business Communication N2 - Artificial intelligence (AI) algorithmic tools that analyze and evaluate recorded meeting data may provide many new opportunities for employees, teams, and organizations. Yet, these new and emerging AI tools raise a variety of issues related to privacy, psychological safety, and control. Based on in-depth interviews with 50 American, Chinese, and German employees, this research identified five key tensions related to algorithmic analysis of recorded meetings: employee control of data versus management control of data, privacy versus transparency, reduced psychological safety versus enhanced psychological safety, learning versus evaluation, and trust in AI versus trust in people. More broadly, these tensions reflect two dimensions to inform organizational policymaking and guidelines: safety versus risk and employee control versus management control. Based on a quadrant configuration of these dimensions, we propose the following approaches to managing algorithmic applications to recording meeting data: the surveillance, benevolent control, meritocratic, and social contract approaches. We suggest the social contract approach facilitates the most robust dialog about the application of algorithmic tools to recorded meeting data, potentially leading to higher employee control and sense of safety. Y1 - 2021 U6 - https://doi.org/10.1177/23294884211037009 ER - TY - JOUR A1 - Heitauer, Mathias A1 - Versen, Martin T1 - Evaluation of a Co-Simulation Approach for Functional Verification of Analog and Mixed Signal Devices JF - EDFA Technical Articles N2 - This article presents an automation workflow for the development of analog and mixed-signal devices similar to the two-stage process used for the design and verification of logic ICs. The use of a co-simulation interface makes it possible to build and verify failure models. KW - delta-sigma converter KW - functional verification KW - mixed signal devices KW - model-based development KW - system simulation Y1 - 2021 U6 - https://doi.org/10.31399/asm.edfa.2021-3.p008 VL - 23 IS - 3 SP - 8 EP - 12 ER - TY - CHAP A1 - Höltl, Stefan A1 - Kneißl, Matthias A1 - Versen, Martin T1 - Parallel Delta-Sigma ADC modulation for performance increase of position sensors in industrial applications T2 - 2021 IEEE Sensors Applications Symposium (SAS) N2 - A parallel design concept of Delta-Sigma modulators that optimizes the resolution and the bandwidth for a highly dynamic position control in industrial applications. The idea is realized on a printed circuit board and tested by using a comprehensive measurement setup. The effective number of bits is increased by 2.5 bits at a fixed frequency. For a constant resolution, the design approach allows smaller filter lengths and a decrease of the delay by 25%. KW - Delta-Sigma KW - ADC KW - parallelization KW - characterization KW - effective resolution KW - bandwidth Y1 - 2021 U6 - https://doi.org/10.1109/SAS51076.2021.9530099 SP - 1 EP - 5 ER - TY - CHAP A1 - Wohlschläger, Maximilian A1 - Versen, Martin A1 - Laforsch, Christian T1 - Non-destructive evaluation of treated polyethylene terephthalate films by fluorescence lifetime imaging T2 - 2021 IEEE Sensors Applications Symposium (SAS) N2 - The fluorescence decay time allows to identify and distinguish polymers from each other. Three differently treated biaxially-oriented polyethylene terephthalate films are examined with two excitation wavelengths of 445 and 488nm. The fluorescence decay time is dependent of the treatment method of the films and is a means for identification. KW - polymer KW - polymer identification KW - fluorescence lifetime imaging KW - fluorescence KW - FD-FLIM Y1 - 2021 U6 - https://doi.org/10.1109/SAS51076.2021.9530008 SP - 1 EP - 5 ER - TY - CHAP A1 - Wohlschläger, Maximilian A1 - Holst, Gerhard A1 - Versen, Martin A1 - Laforsch, Christian T1 - An optical method to differentiate wood from polymers using fluorescence lifetime imaging microscopy T2 - OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES) N2 - In this contribution investigations with fluorescence lifetime imaging microscopy (FLIM) are made to optically distinguish polymers and wood. The results show that the distinction and identification is possible in a graphical and calculative way. KW - Diode lasers KW - Fluorescence lifetime imaging KW - Image processing algorithms KW - Phase shift KW - Raman spectroscopy KW - Stray light Y1 - 2021 U6 - https://doi.org/10.1364/ES.2021.EW4G.6 SP - EW4G.6 ER - TY - CHAP A1 - Leiter, Nina A1 - Wohlschläger, Maximilian A1 - Auer, Veronika A1 - Versen, Martin A1 - Laforsch, Christian T1 - An algorithmic method to identify multiple wood species in a single image by their specific fluorescence lifetimes T2 - OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP) N2 - Fluorescence lifetime imaging microscopy (FLIM) combined with an image processing algorithm is successfully used for the optical identification and areal separation of three wood species of maple, larch and nut in a single taken image. KW - Confocal laser scanning microscopy KW - Fluorescence lifetime imaging KW - Image processing KW - Image processing algorithms KW - Phase shift KW - Ultraviolet radiation Y1 - 2021 U6 - https://doi.org/10.1364/COSI.2021.CF2B.3 SP - CF2B.3 ER - TY - CHAP A1 - Daume, D. A1 - Schulze, A. A1 - Schneider, S. A1 - Neumeyer, T. A1 - Beck, T. A1 - Steinbach, S. A1 - Hüttl, B. T1 - Accurate Short-Circuit Current Measurements on Photovoltaic Modules – Challenges for On-site Outdoor Determinations T2 - Proc. of 38th European Photovoltaic Solar Energy Conference and Exhibition (PVSEC), 4AV.2.6., September 2021, Lissabon KW - Photovoltaik KW - Solarmodule KW - Charakterisierung Y1 - 2021 ER - TY - CHAP A1 - Fraunholz, Daniel A1 - Schörghofer-Vrinssen, Richard A1 - König, Hartmut A1 - Mühlbauer, Wolfgang A1 - Zahoransky, Richard T1 - Mobility-Enabling Edge Cloud Infrastructure: Testbed and Experimental Evaluation T2 - 2021 IEEE Cloud Summit N2 - Mobility management is a key feature of mobile edge computing. We present an edge cloud infrastructure testbed to explore various mobility scenarios. The design objection of this testbed has been a flexible open platform based on commodity hardware that can easily be scaled with more edge devices and compute resources to perform various edge cloud experiments. As first experiments on our testbed, we have investigated the feasibility of task migration among edge devices caused by edge device overload and unpredictable user movements. We describe the migration process and present some measurements to demonstrate the feasibility. KW - edge cloud computing KW - mobile-access edge computing KW - mobility management KW - 5G KW - body cameras KW - task migration Y1 - 2021 UR - https://doi.org/10.1109/IEEECloudSummit52029.2021.00011 SP - 19 EP - 24 ER - TY - CHAP A1 - Wenninger, Marc A1 - Bayerl, Sebastian P. A1 - Maier, Andreas A1 - Schmidt, Jochen T1 - Recurrence Plot Spacial Pyramid Pooling Network for Appliance Identification in Non-Intrusive Load Monitoring T2 - 2021 20th IEEE International Conference on Machine Learning and Applications (ICMLA) N2 - Parameter free Non-intrusive Load Monitoring (NILM) algorithms are a major step toward real-world NILM scenarios. The identification of appliances is the key element in NILM. The task consists of identification of the appliance category and its current state. In this paper, we present a param- eter free appliance identification algorithm for NILM using a 2D representation of time series known as unthresholded Recurrence Plots (RP) for appliance category identification. One cycle of voltage and current (V-I trajectory) are transformed into a RP and classified using a Spacial Pyramid Pooling Convolutional Neural Network architecture. The performance of our approach is evaluated on the three public datasets COOLL, PLAID and WHITEDv1.1 and compared to previous publications. We show that compared to other approaches using our architecture no initial parameters have to be manually tuned for each specific dataset. KW - NILM KW - V-I trajectory KW - Recurrence Plot Y1 - 2021 UR - https://doi.org/10.1109/ICMLA52953.2021.00025 SP - 108 EP - 115 ER - TY - CHAP A1 - Appenzeller, Arno A1 - Bartholomäus, Sebastian A1 - Breitschwerdt, Rüdiger A1 - Claussen, Carsten A1 - Geisler, Sandra A1 - Hartz, Tobias A1 - Kachel, Philipp A1 - Krempel, Erik A1 - Robert, Sebastian A1 - Ruth Zeissig, Sylke T1 - Towards Distributed Healthcare Systems – Virtual Data Pooling Between Cancer Registries as Backbone of Care and Research T2 - 2021 IEEE/ACS 18th International Conference on Computer Systems and Applications (AICCSA) N2 - German cancer registries offer a systematic approach for the collection, storage, and management of data on patients with cancer and related diseases. Much hope in research and healthcare in general is depending on such register-based analyses in order to comprehensively consider the features of a highly diverse population. Next to the data collection the cancer registries are responsible for data protection. To fulfill legal regulations, access to data has to be controlled in a strict way leading to sometimes bureaucratic and slow processes. The situation is especially complicated in Germany, since cancer data is distributed over numerous federal cancer registries. If a nationwide data evaluation is conducted a research team has to negotiate a separate contract with each cancer registry.In a joint work in progress effort of cancer registries, technical, medical, and economical experts we propose a different solution for cooperative data processing. Our approach aims for combining data in a virtual pool based on the selection criteria of individual requests from researchers. To achieve our goal, we adapt the Fraunhofer Medical Data Space as enabling technology. The architecture we propose will allow us to pool data of multiple partners regulated by data access policies. In doing so, each of the data sources can introduce its own rules and specifications on how data is used. Additionally, we add a digital consent management that will allow individual patients to decide how their data is used. Finally, we show the high potential of the cooperative analysis of distributed cancer data supported by the proposed solution in our approach. KW - Systematics KW - Space technology KW - Soft sensors KW - Sociology KW - Distributed databases KW - Process control KW - Medical services Y1 - 2021 UR - https://doi.org/10.1109/AICCSA53542.2021.9686918 SP - 1 EP - 8 ER - TY - RPRT A1 - Danzer, Stephan A1 - Hacker, Bernd T1 - Digitization in Finance and Accounting: Accounting treatment of ERP and RPA systems using the example of SAP S4 / HANA at credit institutions N2 - Technological advancement and digitization have become more and more important in recent years. This is particularly true for credit institutions. The core banking systems used for internal processes are therefore subject to increasing digital change. In many banks, outdated IT systems are still in use, which often lack the basic functionalities that are essential for innovations. In order to achieve a sufficient functionality of the information technology in the company, core banking systems are implemented, which achieve the mapping of almost all bank-specific processes. In addition, so-called software robots are used to automate standard processes with increasing frequency. Due to the lack of standard products in previous years, there is an abundance of in-house developments. While self-developed systems dominate in the European as well as North and South American markets, earlier in-house developments in the German-speaking countries have mainly been replaced by standardized core banking systems. The introduction of standard ERP systems poses a major challenge for financial institutions. Not only does the implementation effort in terms of financial resources and working time play an important role, but also the ongoing expenses for maintenance and further development. These investments not only secure and promote the ability to innovate in the age of digitization, but also create an asset in the company. The evaluation for the accounting representation is an increasing challenge due to the steadily increasing complexity of information processing technologies. Questions arise regarding the access assessment, the follow-up assessment and the handling of previous systems. In the following, accounting according to the international accounting standards for the implementation of the ERP system SAP S/4HANA in credit institutions is shown. The procedure and the results are not limited to banks, but can be applied analogously to many industries. T3 - Rosenheim Papers in Applied Economics and Business Sciences - 3 KW - Digitization Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:861-opus4-18320 ER - TY - JOUR A1 - Hempel, Louisa A1 - Molnar, Jakob A1 - Gaumann, Andreas A1 - Robert, Sebastian A1 - Scheiber, Josef A1 - Kleespies, Axel A1 - Riedmann, Kristina A1 - Schreiber, Susanne A1 - Gandorfer, Beate A1 - Piehler, Armin A1 - Hempel, Dirk T1 - Detection of acquired resistance mutation ALK G1202R after treatment with alectinib and response of lorlatinib BT - A case report JF - memo - Magazine of European Medical Oncology N2 - In the era of personalized medicine, the identification of driver mutations has paved the way towards targeted therapy. With the identification of anaplastic lymphoma kinase (ALK) as an oncogenic driver mutation, ALK rearrangements became druggable by tyrosine kinase inhibitors and, thus, have improved the prognosis for patients. Nevertheless, these approaches are limited by resistances occurring within the first or second year of administering ALK inhibitors. Among the different ALK resistant mutations, G1202R is the most common mutation, located in the kinase domain of the ALK protein resulting in resistance to treatment with the first- and second-generation kinase inhibitors (e.g., crizotinib, ceritinib, brigatenib and alectinib). Conflicting reports exist regarding the efficacy of lorlatinib, a next generation ALK inhibitor. The aim of this study is to access the potential impact of lorlatinib as a second-line treatment for a metastatic progressive NSCLC disease harboring genomic alteration of ALK G1202R, an AKLi-resistant mutation. The case of a patient with advanced lung cancer and the mentioned mutation is described. KW - NSCLC KW - Next-generation ALK inhibitor KW - Resistance mechanisms KW - Next-generation sequencing KW - Molecular diagnostics Y1 - 2021 UR - https://doi.org/10.1007/s12254-021-00724-2 ER - TY - JOUR A1 - Burkart, Nadia A1 - Robert, Sebastian A1 - Huber, Marco F. T1 - Are you sure? Prediction revision in automated decision-making JF - Expert Systems N2 - With the rapid improvements in machine learning and deep learning, decisions made by automated decision support systems (DSS) will increase. Besides the accuracy of predictions, their explainability becomes more important. The algorithms can construct complex mathematical prediction models. This causes insecurity to the predictions. The insecurity rises the need for equipping the algorithms with explanations. To examine how users trust automated DSS, an experiment was conducted. Our research aim is to examine how participants supported by an DSS revise their initial prediction by four varying approaches (treatments) in a between-subject design study. The four treatments differ in the degree of explainability to understand the predictions of the system. First we used an interpretable regression model, second a Random Forest (considered to be a black box [BB]), third the BB with a local explanation and last the BB with a global explanation. We noticed that all participants improved their predictions after receiving an advice whether it was a complete BB or an BB with an explanation. The major finding was that interpretable models were not incorporated more in the decision process than BB models or BB models with explanations. KW - experiment KW - explainable ML KW - interpretability KW - prediction revision Y1 - 2021 UR - https://doi.org/10.1111/exsy.12577 VL - 38 IS - 1 SP - e12577 ER - TY - JOUR A1 - Hempel, Louisa A1 - Molnar, Jakob A1 - Robert, Sebastian A1 - Veloso, Julia A1 - Trepotec, Zeljka A1 - Englisch, Sofie A1 - Weinzierl, Philip A1 - Schick, Cordula A1 - Milani, Valeria A1 - Schweneker, Katrin A1 - Fleischmann, Bastian A1 - Scheiber, Josef A1 - Gandorfer, Beate A1 - Kleespies, Axel A1 - Hempel, Dirk A1 - Riedmann, Kristina A1 - Piehler, Armin T1 - Rare SARS-CoV-2 antibody development in cancer patients JF - Seminars in Oncology N2 - SARS-CoV-2 antibody development and immunity will be crucial for the further course of the pandemic. Until now, it has been assumed that patients who are infected with SARS-CoV-2 will develop antibodies as has been the case with other coronaviruses, like MERS-CoV and SARS-CoV. In the present study, we analyzed the development of antibodies in 77 patients with an oncologic diagnosis 26 days after positive RT-qPCR testing for SARS-CoV2. RT-qPCR and anti-SARS-CoV2-antibody methods from BGI (MGIEasy Magnetic Beads Virus DNA/RNA Extraction Kit) and Roche (Elecsys Anti-SARS-CoV-2 immunoassay) were used, respectively, according to the manufacturers’ specifications. Surprisingly, antibody development was detected in only 6 of 77 individuals with a confirmed history of COVID-19. Despite multiple testing, the remaining patients did not show measurable antibody concentrations in subsequent tests. These results undermine the previous hypothesis that SARS-CoV2 infections are regularly associated with antibody development and cast doubt on the provided immunity to COVID-19. Understanding the adaptive and humoral response to SARS-CoV2 will play a key role in vaccine development and gaining further knowledge on the pathogenesis. KW - SARS-CoV2 antibody development KW - COVID-19 KW - Cancer KW - Immunity Y1 - 2021 UR - https://doi.org/10.1053/j.seminoncol.2020.12.003 VL - 48 IS - 2 SP - 160 EP - 165 ER - TY - JOUR A1 - Hempel, Louisa A1 - Veloso de Oliveira, Julia A1 - Gaumann, Andreas A1 - Milani, Valeria A1 - Schweneker, Katrin A1 - Schenck, Kristina A1 - Fleischmann, Bastian A1 - Philipp, Patrick A1 - Mederle, Stefanie A1 - Garg, Arun A1 - Piehler, Armin A1 - Gandorfer, Beate A1 - Schick, Cordula A1 - Kleespies, Axel A1 - Sellmann, Ludger A1 - Bartels, Marius A1 - Goetze, Thorsten O. A1 - Stein, Alexander A1 - Goekkurt, Eray A1 - Pfitzner, Lucia A1 - Robert, Sebastian A1 - Hempel, Dirk T1 - Landscape of Biomarkers and Actionable Gene Alterations in Adenocarcinoma of GEJ and Stomach - A Real World Data Analysis JF - Cancers N2 - After several years of negative phase III trials in gastric and esophageal cancer, a significant breakthrough in the treatment of metastatic adenocarcinomas of the gastroesophageal junction (GEJ) and stomach (GC) is now becoming evident with the emerging of precision oncology and implementation of molecular targets in tumor treatment. In addition, new generation studies such as umbrella and basket trials are focused on these molecular targets, which makes an early molecular diagnosis based on IHC/ISH and NGS necessary. The required companion diagnostics of Her2neu overamplification or PD-L1 expression is based on immunohistochemistry (IHC) or additionally in situ hybridization (ISH) in case of an IHC Her2neu score of 2+. However, there are investigator-dependent differences in the assessment of Her2neu amplification and different PD-L1 scoring systems obtained by IHC/ISH. The use of high-throughput technologies such as next-generation sequencing (NGS) holds the potential to standardize the analysis and thus make them more comparable. In the presented study, real-world multigene sequencing data of 72 Caucasian patients diagnosed with metastatic adenocarcinomas of GEJ and stomach were analyzed. In the clinical companion diagnostics, we found ESCAT level I molecular targets in one-third of our patients, which directly determined the therapy. In addition, we found potential targets in 14/72 patients (19.4%) who potentially qualify for precision therapies in corresponding molecular studies. The study highlights the importance of comprehensive molecular profiling for precision treatment of GEJ/GC and indicates that a biomarker evaluation should be performed for all patients with metastatic adenocarcinomas before the initiation of first-line treatment and during second-line or subsequent treatment. KW - GEJ KW - GC KW - next-generation sequencing KW - Her2neu KW - PD-L1 KW - personalized medicine KW - molecular target KW - checkpoint inhibitors KW - actionable gene variants Y1 - 2021 UR - https://doi.org/10.3390/cancers13174453 VL - 13 IS - 17 SP - 4453 ER - TY - CHAP A1 - Mucha, Henrik A1 - Robert, Sebastian A1 - Breitschwerdt, Ruediger A1 - Fellmann, Michael T1 - Interfaces for Explanations in Human-AI Interaction: Proposing a Design Evaluation Approach T2 - Extended Abstracts of the 2021 CHI Conference on Human Factors in Computing Systems. Association for Computing Machinery, New York, NY, USA N2 - Explanations in Human-AI Interaction are communicated to human decision makers through interfaces. Yet, it is not clear what consequences the exact representation of such explanations as part of decision support systems (DSS) and working on machine learning (ML) models has on human decision making. We observe a need for research methods that allow for measuring the effect different eXplainable AI (XAI) interface designs have on people’s decision making. In this paper, we argue for adopting research approaches from decision theory for HCI research on XAI interface design. We outline how we used estimation tasks in human-grounded design research in order to introduce a method and measurement for collecting evidence on XAI interface effects. To this end, we investigated representations of LIME explanations in an estimation task online study as proof-of-concept for our proposal. KW - Human-AI Interaction Y1 - 2021 UR - https://doi.org/10.1145/3411763.3451759 SP - 327 ER - TY - CHAP A1 - Seliger, Norbert T1 - A Free Oscillating Half-Bridge Converter for Capacitively Coupled Wireless Power Transfer T2 - IEEE 6th International Forum on Research and Technology for Society and Industry (RTSI) N2 - In this research we present a short distance capacitively coupled wireless power transfer (WPT) system with a self-oscillating half-bridge converter, which uses a positive feedback signal from the WPT system. By this novel implementation we find additional features of the system compared to linear amplifier based systems. With the DC bias voltage supplying the power converter, we achieve a controllable output power, tunable self-oscillation frequency and extension of the self-oscillation range. We present the analytical expressions for the converter waveforms. The theoretical analysis is confirmed by circuit simulation results and measurements on a prototype featuring a half-bridge converter with Gallium-Nitide (GaN) HEMTs. We achieve a system efficiency of 93% at a load power of 83W and 150kHz switching frequency. KW - wireless power transfer KW - capacitive coupling KW - GaN half-bridge KW - self-oscillation Y1 - 2021 PB - IEEE ER - TY - CHAP A1 - Seliger, Norbert T1 - Design of a Half-Bridge Converter for Self-Adapting Capacitive Wireless Power Transfer T2 - IEEE 2021 CENCON conference N2 - We present the design of a half-bridge converter for a capacitively coupled wireless power transfer system. The load signal acts as a positive feedback signal for a self-oscillation circuit which generates the driving gate signals for the converter. Our research reveals a robust wireless operation for a large range of load resistors and coupling capacitors. Based on an electric network analysis we obtain design criteria for self-oscillation and for the power transfer. The theoretical predictions are confirmed by circuit simulation and measurement results on a converter prototype with GaN-HEMTs. We report on a transfer efficiency of 92% for a power greater than 50W at a switching frequency of 300kHz and 200V DC link voltage. KW - GaN half-bridge KW - Wireless power transfer KW - Capacitive coupling KW - Self-adaptive Y1 - 2021 PB - IEEE ER - TY - GEN A1 - Ott, Holly C. A1 - Girata Sastoque, Lina Maria A1 - Brunsmeier, Martin A1 - Bayer, Claudia T1 - On the Cutting Edge of Wood Technology - Ensuring Sustainable Wood Flows T2 - Research in Bavaria - Spotlight KW - wood KW - sustainability KW - wood-based products Y1 - 2021 UR - https://www.research-in-bavaria.de/wood-technology ER - TY - JOUR A1 - Regauer, Verena A1 - Seckler, Eva A1 - Campbell, Craig A1 - Phillips, Amanda A1 - Rotter, Thomas A1 - Bauer, Petra A1 - Müller, Martin T1 - German translation and pre-testing of Consolidated Framework for Implementation Research (CFIR) and Expert Recommendations for Implementing Change (ERIC) JF - Implementation Science Communications N2 - Background Implementation frameworks may support local implementation strategies with a sound theoretical foundation. The Consolidated Framework for Implementation Research (CFIR) facilitates identification of contextual barriers and facilitators, and the Expert Recommendations for Implementing Change (ERIC) allows identifying adequate implementation strategies. Both instruments are already used in German-speaking countries; however, no standardised and validated translation is available thus far. The aim of this study was to translate the CFIR and ERIC framework into German, in order to increase the use of these frameworks and the adherence to evidence-based implementation efforts in German-speaking countries. Methods The translation of the original versions of the CFIR and ERIC framework was guided by the World Health Organisation’s recommendations for the process of translating and adapting both conceptual frameworks. Accordingly, a four-step process was employed: first, forward translation from English into German was conducted by a research team of German native speakers with fluent knowledge of the English language. Second, a bilingual expert panel comprising one researcher with German as his mother tongue and expert command of the English language and one English language expert and university teacher reviewed the translation and discussed inconsistencies with the initial translators. Third, back-translation into English was conducted by an English native speaking researcher. The final version was pre-tested with 12 German researchers and clinicians who were involved in implementation projects using cognitive interviews. Results The translation and review process revealed some inconsistencies between the original version and the German translations. All issues could be solved by discussion. Central aspects of the items were confirmed in 60 to 70% of the items, and modifications were proposed in 30% of the items. Finally, we revised one CFIR-item heading after pre-testing. The final version was given consent by all involved parties. Conclusions Now, two validated and tested implementation frameworks to guide implementation efforts are available in the German language and can be used to increase the application of agreed-on implementation strategies into practice. KW - Implementation science KW - Implementation strategies KW - Knowledge translation strategies KW - Consolidated Framework for Implementation Research KW - Expert Recommendations for Implementing Change Y1 - 2021 UR - https://doi.org/10.1186/s43058-021-00222-w VL - 2 SP - 120 ER - TY - JOUR A1 - Seckler, Eva A1 - Regauer, Verena A1 - Krüger, Melanie A1 - Gabriel, Anna A1 - Hermsdörfer, Joachim A1 - Niemietz, Carolin A1 - Bauer, Petra A1 - Müller, Martin T1 - Improving mobility and participation of older people with vertigo, dizziness and balance disorders in primary care using a care pathway: feasibility study and process evaluation JF - BMC Family Practice N2 - Background Community-dwelling older people are frequently affected by vertigo, dizziness and balance disorders (VDB). We previously developed a care pathway (CPW) to improve their mobility and participation by offering standardized approaches for general practitioners (GPs) and physical therapists (PTs). We aimed to assess the feasibility of the intervention, its implementation strategy and the study procedures in preparation for the subsequent main trial. Methods This 12-week prospective cohort feasibility study was accompanied by a process evaluation designed according to the UK Medical Research Council’s Guidance for developing and evaluating complex interventions. Patients with VDB (≥65 years), GPs and PTs in primary care were included. The intervention consisted of a diagnostic screening checklist for GPs and a guide for PTs. The implementation strategy included specific educational trainings and a telephone helpline. Data for mixed-method process evaluation were collected via standardized questionnaires, field notes and qualitative interviews. Quantitative data were analysed using descriptive statistics, qualitative data using content analysis. Results A total of five GP practices (seven single GPs), 10 PT practices and 22 patients were included in the study. The recruitment of GPs and patients was challenging (response rates: GP practices: 28%, PT practices: 39%). Ninety-one percent of the patients and all health professionals completed the study. The health professionals responded well to the educational trainings; the utilization of the telephone helpline was low (one call each from GPs and PTs). Familiarisation with the routine of application of the intervention and positive attitudes were emphasized as facilitators of the implementation of the intervention, whereas a lack of time was mentioned as a barrier. Despite difficulties in the GPs’ adherence to the intervention protocol, the GPs, PTs and patients saw benefit in the intervention. The patients’ treatment adherence to physical therapy was good. There were minor issues in data collection, but no unintended consequences. Conclusion Although the process evaluation provided good support for the feasibility of study procedures, the intervention and its implementation strategy, we identified a need for improvement in recruitment of participants, the GP intervention part and the data collection procedures. The findings will inform the main trial to test the interventions effectiveness in a cluster RCT. Trial registration Projektdatenbank Versorgungsforschung Deutschland (German registry Health Services Research) VfD_MobilE-PHY_17_003910, date of registration: 30.11.2017; Deutsches Register Klinischer Studien (German Clinical Trials Register) DRKS00022918, date of registration: 03.09.2020 (retrospectively registered). KW - Critical pathways KW - Primary health care KW - General practitioners KW - Aged KW - Vertigo KW - Dizziness KW - Physical therapy modalities KW - Implementation science KW - Feasibility studies Y1 - 2021 UR - https://doi.org/10.1186/s12875-021-01410-2 VL - 22 SP - 62 ER - TY - JOUR A1 - Regauer, Verena A1 - Seckler, Eva A1 - Grill, Eva A1 - Ippisch, Richard A1 - Jahn, Klaus A1 - Bauer, Petra A1 - Müller, Martin T1 - Development of a complex intervention to improve mobility and participation of older people with vertigo, dizziness and balance disorders in primary care: a mixed methods study JF - BMC Family Practice N2 - Background Vertigo, dizziness and balance disorders (VDB) are common in older people and cause restrictions in mobility and social participation. Due to a multifactorial aetiology, health care is often overutilised, but many patients are also treated insufficiently in primary care. The purpose of this study was to develop a care pathway as a complex intervention to improve mobility and participation in older people with VDB in primary care. Methods The development process followed the UK Medical Research Council guidance using a mixed-methods design with individual and group interviews carried out with patients, physical therapists (PTs), general practitioners (GPs), nurses working in community care and a multi-professional expert panel to create a first draft of a care pathway (CPW) and implementation strategy using the Consolidated Framework of Implementation Research and the Expert recommendations for Implementing Change. Subsequently, small expert group modelling of specific components of the CPW was carried out, with GPs, medical specialists and PTs. The Behaviour Change Wheel was applied to design the intervention´s approach to behaviour change. To derive theoretical assumptions, we adopted Kellogg´s Logic Model to consolidate the hypothesized chain of causes leading to patient-relevant outcomes. Results Individual interviews with patients showed that VDB symptoms need to be taken more seriously by GPs. Patients demanded age-specific treatment offers, group sessions or a continuous mentoring by a PT. GPs required a specific guideline for diagnostics and treatment options including psychosocial interventions. Specific assignment to and a standardized approach during physical therapy were desired by PTs. Nurses favoured a multi-professional documentation system. The structured three-day expert workshop resulted in a first draft of CPW and potential implementation strategies. Subsequent modelling resulted in a CPW with components and appropriate training materials for involved health professionals. A specific implementation strategy is now available. Conclusion A mixed-methods design was suggested to be a suitable approach to develop a complex intervention and its implementation strategy. We will subsequently test the intervention for its acceptability and feasibility in a feasibility study accompanied by a comprehensive process evaluation to inform a subsequent effectiveness trial. Trial Registration The research project is registered in “Projektdatenbank Versorgungsforschung Deutschland” (Project-ID: VfD_MobilE-PHY_17_003910; date of registration: 30.11.2017). KW - Critical Pathways KW - Implementation Science KW - Primary Health Care KW - Aged KW - Vertigo KW - Dizziness KW - General Practitioners KW - Physical Therapy Modalities Y1 - 2021 UR - https://doi.org/10.1186/s12875-021-01441-9 VL - 22 SP - 89 ER - TY - JOUR A1 - Magni, Mara A1 - Ochs, Fabian A1 - de Vries, Samuel A1 - Maccarini, Alessandro A1 - Sigg, Ferdinand T1 - Detailed cross comparison of building energy simulation tools results using a reference office building as a case study JF - Energy and Buildings N2 - Building Energy Simulation (BES) tools play a key role in the optimization of the building system during the different phases, from pre-design through commissioning to operation. BES tools are increasingly used in research as well as in companies. New BES tools and updated versions are continuously being released. Each tool follows an independent validation process but rarely all the tools are compared against each other using a common case study. In this work, the modelling approaches of widespread dynamic simulation tools (i.e. EnergyPlus, TRNSYS, Simulink libraries CarnotUIBK and ALMABuild, IDA ICE, Modelica/Dymola and DALEC), as well as PHPP (a well-known quasi-steady-state tool), are described and the results of all the tools modelling the same characteristic office cell, defined within the IEA SHC Task 56, are compared on a monthly and hourly basis for the climates of Stockholm, Stuttgart and Rome. Unfortunately, different tools require different levels of input detail, which are often not matching with available data, hence the parametrization process highly influences the quality of the simulation results. In the current study to evaluate the deviation between the tools, frequently used statistical indices and normalization methods are analysed and the problems related to their application, in a cross-comparison of different tools, are investigated. In this regard, the deviation thresholds indicated by ASHRAE Guideline 14-2014 are used as a basis to identify results that suggest an acceptable level of disagreement between the predictions of a particular model and the outcomes of all models. The process of reaching a good agreement between all tools required several iterations and great effort on behalf of the modellers. To aid the definition of building component descriptions and future references for inter-model comparison a short history of the executed steps is presented in this work. Together with the comparison of the results of the tools, their computational cost is evaluated and an overview of the modelling approaches supported by the different tools for this case study is provided aiming to support the users in choosing a fit-for-purpose simulation tool. KW - Statistical indices KW - Computational cost KW - Modelling approaches KW - Cross comparison KW - Building Simulation Y1 - 2021 UR - https://doi.org/10.1016/j.enbuild.2021.111260 VL - 250 SP - 111260 ER - TY - JOUR A1 - Frescura, Alessia A1 - Lee, Pyoung Jik A1 - Schöpfer, Fabian A1 - Schanda, Ulrich T1 - Correlations between standardised and real impact sound sources in lightweight wooden structures JF - Applied Acoustics N2 - This study aimed to understand the correlation between standard impact sound sources and real impact sources in lightweight floor structures. Six real impact sources (adult walking, child running, child jumping on the floor, and three objects falling) were used to be compared with standard impact sources (i.e. tapping machine and impact ball). Measurements were conducted on a lightweight timber joist floor. Impact sound pressure levels (SPLs) produced by the standard impact sources were measured on the four floor structures with or without carpet tiles. For the real impact sources, two walkers wearing socks and slippers walked at different speeds (normal and fast) along three paths, while two children ran along the three paths and jumped at four positions. Also, the SPLs generated by dropped objects were measured at five positions. Seven standardised single-number quantities (SNQs) were calculated for the tapping machine and the impact ball, while three noise ratings (LAeq, LAFmax, and LN) were also computed from the sound recordings of the real impact sources. Both the tapping machine and the impact ball showed similar frequency characteristics with the real impact sources across all the floor structures. All the SNQs for the tapping machine and the impact ball were highly correlated with the energy-based noise ratings of the adult walking and little differences were found across walking speeds and footwear. Similar tendencies were observed from other real impact sources, indicating the high correlations between the standardised SNQs of the tapping machine and the impact ball and the noise ratings. KW - Impact sound KW - Single-number quantities KW - Noise ratings KW - Lightweight wooden structures Y1 - 2021 UR - https://doi.org/10.1016/j.apacoust.2020.107690 VL - 173 SP - 107690 ER - TY - JOUR A1 - Barth, Simon A1 - Schmid, Thomas A1 - Michanickl, Andreas T1 - TECHNICAL NOTE: A METHOD TO DETERMINE THE WETTING OF WOOD FIBERS WITH THERMOPLASTIC JF - Wood and Fiber Science N2 - This paper presents a method which allows to assess the wettability of thermomechanical pulp (TMP) with thermoplastic. The method is based on the usage of laboratory sheets made of TMP and plastic granules which form drops under heat. The contact angle of the drops after re-solidification on the surface of the laboratory sheets serves as the wetting characteristic. This method enables a direct and evaluable testing of wood fiber thermoplastic combinations. The exemplary results indicate that wood species, pulping temperature and mercerization influence the wettability of TMP with thermoplastic. KW - thermomechanical pulp KW - thermoplastic KW - wettability Y1 - 2021 UR - https://doi.org/10.22382/wfs-2021-16 VL - 53 IS - 2 SP - 157 EP - 159 ER - TY - CHAP A1 - Herz, Jonas A1 - Sigrüner, Michael A1 - Krekemeyer, Markus A1 - Kazmi, Monis A1 - Schuster, Jens A1 - Muscat, Dirk A1 - Strübbe, Nicole T1 - INVESTIGATION OF AN INNOVATIVE WOOD-PLASTIC HYBRID LAID FABRIC FOR THE REPLACEMENT OF STEEL REINFORCEMENTS IN CONSTRUCTIONS T2 - SAMPE Europe 2021 Conference, Baden/Zürich, 29. - 30. Sept. 2021 KW - wood-plastic hybrid fabric Y1 - 2021 ER - TY - CHAP A1 - Sigrüner, Michael A1 - Muscat, Dirk A1 - Strübbe, Nicole T1 - Influencing the bonding ability of polypropylene fibers to concrete by blend hydrophilization and reactive functionalization T2 - IUPAC MACRO2020+, 48th World Polymer Congress, 16. - 21. May 2021 KW - polypropylene fibers KW - concrete Y1 - 2021 ER - TY - JOUR A1 - Hodel, Jsabel A1 - Stucki, Gerold A1 - Prodinger, Birgit T1 - The potential of prediction models of functioning remains to be fully exploited: A scoping review in the field of spinal cord injury rehabilitation JF - Journal of Clinical Epidemiology N2 - Objective: The study aimed to explore existing prediction models of functioning in spinal cord injury (SCI). Study design and setting: The databases PubMed, EBSCOhost CINAHL Complete, and IEEE Xplore were searched for relevant literature. The search strategy included published search filters for prediction model and impact studies, index terms and keywords for SCI, and relevant outcome measures able to assess functioning as reflected in the International Classification of Functioning, Disability and Health (ICF). The search was completed in October 2020. Results: We identified seven prediction model studies reporting twelve prediction models of functioning. The identified prediction models were mainly envisioned to be used for rehabilitation planning, however, also other possible applications were stated. The method predominantly used was regression analysis and the investigated predictors covered mainly the ICF components of body functions and activities and participation, next to characteristics of the health condition and health interventions. Conclusion: Findings suggest that the development of prediction models of functioning for use in clinical practice remains to be fully exploited. By providing a comprehensive overview of what has been done, this review informs future research on prediction models of functioning in SCI and contributes to an efficient use of research evidence. KW - Spinal Cord Injuries KW - Rehabilitation KW - Prognosis KW - Diagnosis KW - Clinical Decision Rules KW - Forecasting Y1 - 2021 UR - https://doi.org/10.1016/j.jclinepi.2021.07.015 VL - 139 SP - 177 EP - 190 ER - TY - JOUR A1 - Hodel, Jsabel A1 - Ehrmann, Cristina A1 - Scheel-Sailer, Anke A1 - Stucki, Gerold A1 - Bickenbach, Jerome E. A1 - Prodinger, Birgit T1 - Identification of Classes of Functioning Trajectories and Their Predictors in Individuals With Spinal Cord Injury Attending Initial Rehabilitation in Switzerland JF - Archives of Rehabilitation Research and Clinical Translation N2 - Objectives: To identify classes of functioning trajectories in individuals with spinal cord injury (SCI) undergoing initial rehabilitation after injury and to examine potential predictors of class membership to inform clinical planning of the rehabilitation process. Design: Longitudinal analysis of the individual's rehabilitation stay using data from the Inception Cohort of the Swiss Spinal Cord Injury Cohort Study (SwiSCI). Setting: Initial rehabilitation in specialized centers in Switzerland. Participants: Individuals with newly acquired SCI (N=748; mean age, 54.66±18.38y) who completed initial rehabilitation between May 2013 and September 2019. The cohort was primarily composed of men (67.51%), persons with paraplegia (56.15%), incomplete injuries (67.51%), and traumatic etiologies (55.48%). Interventions: Not applicable. Main Outcome Measures: Functioning was operationalized with the interval-based sum score of the Spinal Cord Independence Measure version III (SCIM III). For each individual, the SCIM III sum score was assessed at up to 4 time points during rehabilitation stay. The corresponding time of assessment was recorded by the difference in days between the SCIM III assessment and admission to the rehabilitation program. Results: Latent process mixed model analysis revealed 4 classes of functioning trajectories within the present sample. Class-specific predicted mean functioning trajectories describe stable high functioning (n=307; 41.04%), early functioning improvement (n=39; 5.21%), moderate functioning improvement (n=287; 38.37%), and slow functioning improvement (n=115; 15.37%), respectively. Out of 12 tested factors, multinomial logistic regression showed that age, injury level, injury severity, and ventilator assistance were robust predictors that could distinguish between identified classes of functioning trajectories in the present sample. Conclusions: The current study establishes a foundation for future research on the course of functioning of individuals with SCI in initial rehabilitation by identifying classes of functioning trajectories. This supports the development of specifically tailored rehabilitation programs and prediction models, which can be integrated into clinical rehabilitation planning. KW - Latent class analysis KW - Logistic models KW - Longitudinal studies KW - Observational study KW - Rehabilitation KW - Spinal cord injuries Y1 - 2021 UR - https://doi.org/10.1016/j.arrct.2021.100121 VL - 3 IS - 2 SP - 100121 ER -