TY - CHAP A1 - Böttcher, Benedikt A1 - Zentgraf, Peter A1 - Zeitler, Adrian T1 - Online-Selbst-Identifikation eines dynamischen Systems T2 - AALE 2020 - 17. Fachkonferenz, Automatisierung und Mensch-Technik-Interaktion, 04.03.2020 - 06.03.2020, Leipzig, Deutschland N2 - Im Rahmen der Digitalisierung der industriellen Produktion mit Industrie 4.0 und des autonomen Fahrens erlangen möglichst detaillierte digitale Abbilder von Maschinen und Fahrzeugen für den vollständigen Zeitraum ihres Einsatzes eine zentrale Bedeutung. Sowohl durch geplante Veränderungen des Arbeitspunkts aber auch durch Abnutzung und Verschleiß kommt es zu Abweichungen des Systemverhaltens. In diesem Posterbeitrag werden die Entwicklung und die Anwendung eines Identifikations-Algorithmus für die automatisierte Modellierung eines dynamischen Systems basierend auf einem gemessenen Ein- und Ausgangssignal beschrieben. Der in MATLAB und Simulink programmierte Algorithmus läuft parallel zum realen System auf einer embedded Hardware ab, so dass eine Identifikation online und selbstständig ausgeführt wird. Die prozess- oder verschleißbedingten Veränderungen des Systemverhaltens werden damit unmittelbar bei der Modellierung während des Betriebs berücksichtigt. Im Anschluss an die Identifikation sind die Selbst-Optimierung, die Vorsteuerung und die Selbst-Konfiguration des Systems, z.B. die Anpassung von Reglern, basierend auf dem aktuellen Modell durchführbar. KW - Industrie 4.0 KW - Identifikations-Algorithmus KW - Systemverhalten Y1 - 2020 ER - TY - JOUR A1 - Cardon, Peter A1 - Aritz, Jolanta A1 - Fleischmann, Carolin A1 - Elhaddaoui, Terri A1 - Getchell, Kristen A1 - Helens-Hart, Rose A1 - Iivonen, Kirsti A1 - Insignares, Frank A1 - Li, Xiaoli A1 - Logemann, Minna A1 - Palmer-Silveira, Juan Carlos A1 - Ruiz-Garrido, Miguel A1 - Shrivastava, Archana A1 - Springer, Scott A1 - Stapp, James A1 - Swartz, Stephanie A1 - Warren, Naomi A1 - Woolstenhulme, Karen A1 - Zemaitis, Eigirdas T1 - What Happens to Global Virtual Teams When a Pandemic Hits? Maintaining Normalcy and Stability with Disruption All Around JF - The Western ABC Bulletin N2 - Each year, the Virtual Business Professional (VBP) program brings together professors and students from across the globe to engage in client projects. The VBP program of 2020 occurred from the beginning of March through the middle of April. In this article, we share how the COVID-19 pandemic affected VBP participants and their teams. We present post-project survey results (completed by 440 of 530 participants for an 83 percent response rate), professor comments, and student comments to demonstrate how VBP participants overcame many of the pandemic disruptions to work effectively in virtual teams, develop compassion and empathy for one another, and foster more global mindsets. KW - Virtual Business Professional (VBP) program Y1 - 2020 VL - Spring 2020 ER - TY - CHAP A1 - Châteauvieux-Hellwig, Camille A1 - Borrmann, André T1 - Towards semantic enrichment of early-design timber models for noise and vibration analysis T2 - Proceedings of the 13th European Conference on Product and Process Modelling (ECPPM 2020) KW - BIM Y1 - 2020 ER - TY - CHAP A1 - Châteauvieux-Hellwig, Camille A1 - Geladze, Ekaterine A1 - Mayr, Andreas R. A1 - Schanda, Ulrich A1 - Schöpfer, Fabian T1 - Prognoseverfahren zum Schall- und Schwingungsschutz für BIM-basierte Gebäudeplanung T2 - Fortschritte der Akustik - DAGA KW - BIM Y1 - 2020 ER - TY - CHAP A1 - Dechant, Eduard A1 - Seliger, Norbert A1 - Kennel, Ralph T1 - Design of a Low Multi-Loop Inductance Three Level Neutral Point Clamped Converter with GaN HEMTs T2 - IEEE Energy Conversion Congress and Exposition (ECCE) N2 - This work shows a numerical and experimental analysis of a Neutral-Point-Clamp (NPC) three level inverter featuring an ultra low inductance printed circuit board (PCB) design in consideration of the mutual inductive and capacitive couplings. The commutation loops in this design are found to be strongly dependent on the vertical thickness of the used prepregs and the core. For vertical thicknesses ≤ 100 μm capacitive coupling must be taken into account in the switching cell design. Experimental measurements of a test set-up with a total PCB thickness of 400 μm results in commutation loop inductances from 1.4 nH up to 3.1 nH. In this set-up, switching tests without external gate resistor showed only a maximum voltage overshoot of 7% at 800 V. Based on a numerical analysis of the NPC cell we propose a further switching performance improvement with significant smaller parasitic inductance due to the application of novel printed circuit technologies such as the integration of bare dies into the printed circuit board or polyimide as an interlayer dielectric material. KW - Neutral-Point-Clamp (NPC) three level inverter KW - GaN HEMT KW - low multiloop inductance Y1 - 2020 PB - IEEE ER - TY - JOUR A1 - Devi, N. A1 - Prodinger, Birgit A1 - Pennycott, A. A1 - Sooben, R. A1 - Bickenbach, J. T1 - Investigating Supported Decision‐Making for Persons With Mild to Moderate Intellectual Disability Using Institutional Ethnography JF - Journal of Policy and Practice in Intellectual Disabilities N2 - Making one's own choices is an important part of leading a fulfilling life within society. However, people with IDs often face significant obstacles when making their own decisions. Article 12 (Equal recognition before the law) of the United Nations Convention on the Rights of Persons with Disabilities (CRPD) aims to ensure firstly that people with IDs and others with compromised capacity are nonetheless recognized as legal individuals, and secondly that assistance is provided in the form of supported decision‐making in order to exercise this resulting legal capacity. It is unclear whether current national legislation in any country satisfies these requirements in practice. This study utilizes institutional ethnography to reveal how decision‐making is coordinated in practice for people with mild to moderate IDs living in supported residential environments in England, and to determine whether these processes are compliant with Article 12 of the CRPD. Data collection was based on observations, semi‐structured interviews, and documentary analysis, involving 29 participants including people with mild to moderate IDs. The results point to the complexity of supported decision‐making and identify three main categories of decision‐making: spontaneous decisions, mid‐term decisions, and strategic decisions. The data also show that people with mild to moderate IDs are able to exercise their legal capacity through support decision‐making in their everyday life. Immediate and informal supported decision‐making exists in daily practice for people with mild to moderate IDs living in supported residential environments. Although there are structures in place for implementing supported decision‐making, various barriers persist that limit the overall efficacy and consistency of the realization of supported decision‐making, for example, multiple use of mental capacity assessments. Such practices move away from the supported decision‐making model toward substituted decision‐making. KW - Institutional Ethnography KW - Intellectual Disability Y1 - 2020 UR - https://doi.org/10.1111/jppi.12314 VL - 17 IS - 2 SP - 143 EP - 156 ER - TY - JOUR A1 - Dorjbal, D. A1 - Prodinger, Birgit A1 - Zanini, C. A1 - Avirmed, B. A1 - Stucki, G. A1 - Rubinelli, S. T1 - Living with spinal cord injury in Mongolia: A qualitative study on perceived environmental barriers JF - Journal of Spinal Cord Medicine N2 - Context: Environmental factors play a key role in the lives of individuals with a spinal cord injury (SCI). This study identifies environmental barriers and their impacts on daily lives as perceived by individuals living with SCI in Mongolia. Design: A qualitative study with semi-structured interviews was conducted. A topic guide for the interviews was structured around the components of the International Classification of Functioning, Disability, and Health. Setting: Urban and rural areas of Mongolia. Participants: A purposive sample of 16 persons with traumatic SCI. Interventions: Not applicable. Outcome Measures: Not applicable. Results: Seven categories of environmental barriers were mentioned, such as poor access to the physical environment, absence of wheelchair-friendly transportation, negative societal attitudes, inadequate health and rehabilitation services, lack of access to assistive devices and medicines, limited financial resources for healthcare, and inaccurate categorization of disabilities in laws. These barriers were claimed to have an impact on physical and psychological health, limit activities, and restrict participation in almost all areas of life. Conclusion: This study contributes to the identification of targets for interventions aimed at improving the lived experience of persons with SCI in a low-resource context. The findings reveal that while the Mongolian government already has laws and policies in place to improve access to the physical environment, transportation, assistive devices and employment, much more has to be done in terms of enforcement. Specialized SCI care and rehabilitation services are highly demanded in Mongolia. KW - Lived experience KW - Developing country KW - International Classification of Functioning, Disability, and Health KW - Semi-structured interviews KW - Person-centeredness KW - Rehabilitation services Y1 - 2020 UR - https://doi.org/10.1080/10790268.2019.1565707 VL - 43 IS - 4 SP - 518 EP - 531 ER - TY - JOUR A1 - Ehrmann, C. A1 - Mahmoudi, S. M. A1 - Prodinger, Birgit A1 - Kiekens, C. A1 - Ertzgaard, P. T1 - Impact of spasticity on functioning in spinal cord injury: an application of graphical modelling JF - Journal of Rehabilitation Medicine N2 - Abstract Objective: To identify the impact of moderate-to-severe spasticity on functioning in people living with spinal cord injury. Design: Secondary analysis of cross-sectional survey data using graphical modelling. Subjects: Individuals (n = 1,436) with spinal cord injury aged over 16 years with reported spasticity problems. Methods: Spasticity and 13 other impairments in body functions were assessed using the spinal cord injury Secondary Conditions Scale. Impairments in mental functions were assessed using the Mental Health subscale of the 36-item Short Form (SF-36). Independence in activities was measured with the Spinal Cord Injury Independence Measure Self-Report. Restrictions in participation were measured with the Utrecht Scale for Evaluation Rehabilitation – Participation. Results: Fifty-one percent of participants reported moderate-to-severe spasticity. Graphical modelling showed that Chronic pain, Contractures, Tiredness, Doing housework, and Respiratory functions were associated with spasticity and were the top 5 potential targets for interventions to improve the experience of spasticity. The associations and intervention targets were dependent on the level and completeness of the lesion. Conclusion: This is the first application of graphical modelling in studying spasticity in people living with spinal cord injury. The results can be used as a basis for studies aiming to optimize rehabilitation interventions in people with moderate-to-severe spasticity. Lay Abstract Spasticity is one of the most common complications of spinal cord injury. It influences limitations in functioning. Comprehensive evidence on the impact of spasticity on all domains of functioning may be beneficial to optimize rehabilitation interventions aimed at reducing the effects of spasticity. This is the first application of graphical modelling to study and visualize the impact of moderate-to-severe spasticity on functioning in people living with spinal cord injury. The results show that chronic pain, contractures, tiredness, doing housework, and respiratory functions were the functioning domains associated with spasticity. These are therefore the top 5 potential targets for interventions to improve the experience of spasticity. In addition, the level and completeness of lesions should be considered when studying spasticity in relation to all domains of functioning. These results should be used as a basis for studies aiming to optimize rehabilitation interventions in people with moderate-to-severe spasticity. KW - spinal cord injury Y1 - 2020 UR - https://doi.org/10.2340/16501977-2657 VL - 52 IS - 3 ER - TY - GEN A1 - Eng, W.K. A1 - Ott, Holly C. A1 - Mei, C.S. T1 - Optimising Process Flows in Dragon Fruit Jam Production KW - Case Study Y1 - 2020 ER - TY - JOUR A1 - Engler, Benjamin A1 - Hoffmann, Stephan 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 - contact surface area KW - ground pressure Y1 - 2020 UR - https://doi.org/10.1080/14942119.2021.1834814 ER - TY - BOOK A1 - Ernst, Hartmut A1 - Schmidt, Jochen A1 - Beneken, Gerd T1 - Grundkurs Informatik: Grundlagen und Konzepte für die erfolgreiche IT-Praxis - Eine umfassende, praxisorientierte Einführung N2 - Zahlensysteme und binäre Arithmetik – Nachricht und Information – Codierung und Datenkompression – Verschlüsselung – Schaltalgebra, Schaltnetze und Elemente der Computerhardware – Rechnerarchitekturen – Rechnernetze – Betriebssysteme – prozedurale und objektorientierte Programmierung (C und Java) – Automatentheorie und formale Sprachen – Berechenbarkeit und Komplexität – Suchen und Sortieren – Bäume und Graphen – Software-Engineering – Datenbanken – Anwendungsprogrammierung im Internet (HTML, CSS, JavaScript und PHP) – Deep Learning mit neuronalen Netzen KW - Grundlagen Informatik Y1 - 2020 SN - 978-3-658-30330-3 PB - Springer Vieweg CY - Wiesbaden ET - 7 ER - TY - JOUR A1 - Fleischmann, Carolin A1 - Aritz, Jolanta A1 - Cardon, Peter T1 - Language Proficiency and Media Richness in Global Virtual Teams: Impacts on Satisfaction, Inclusion, and Task Accomplishment JF - ACM Transactions on Social Computing N2 - Virtual teams that use integrated communication platforms are ubiquitous in cross-border collaboration. This study explores the use of communication media and team outcomes—both social outcomes and task accomplishment—in multilingual virtual teams. Based on surveys from 96 virtual teams (with 578 team members), the research shows that the more time spent in rich communication channels, such as online conferences, increased inclusion and satisfaction, whereas the more time spent with written communication that is lower in richness increased the level of task accomplishment. Team members with lower language proficiency felt less included in all collaboration channels, whereas team members with higher language proficiency felt less satisfied with lean collaboration. In addition, limited language proficiency speakers were significantly less likely to view rich tools as helpful for their teams to reach a mutual decision. Our data support media richness theory in its original context for native and highly proficient English speakers. Our study extends the scope of the theory by applying it to the new context of team members with limited language proficiency. Management should implement a collaboration infrastructure consisting of communication platforms that integrate a variety of media to account for different tasks and different communication needs. KW - language proficiency KW - media richness theory KW - task accomplishment KW - team outcomes KW - Virtual teams Y1 - 2020 U6 - https://doi.org/10.1145/3363564 VL - 2 IS - 4 SP - 1 EP - 18 ER - TY - CHAP A1 - Fleischmann, Carolin A1 - Cardon, Peter A1 - Aritz, Jolanta T1 - Smart Collaboration in Global Virtual Teams: The Influence of Culture on Technology Acceptance and Communication Effectiveness T2 - Proceedings of the 53rd Hawaii International Conference on System Sciences N2 - Teams are beginning to rely on smart communication technology that is enhanced by Artificial Intelligence (AI). Yet, we lack understanding of how these smart communication technologies (SCT) influence team collaboration, especially in global virtual teams (GVT). This study empirically investigates how cultural values and practices influence the acceptance of SCT and how the use of this technology impacts communication effectiveness in GVT. We surveyed 643 members of 109 GVT before and after using the SCT. Results showed that team members from individualistic, future oriented cultures generally had more positive expectations towards the performance and enjoyment of using the technology. Uncertainty avoidance increased effort expectancy. After using SCT for communicating in the GVT, most differences disappeared. Regarding communication effectiveness, SCT had a positive influence, which was stronger for performance and future oriented cultures. Y1 - 2020 UR - http://hdl.handle.net/10125/63784 N1 - Best Paper Award ER - TY - JOUR A1 - Fleischmann, Carolin A1 - Folter, Laura-Christiane A1 - Aritz, Jolanta T1 - The Impact of Perceived Foreign Language Proficiency on Hybrid Team Culture JF - International Journal of Business Communication N2 - This study examines the impact of perceived foreign language proficiency on hybrid culture building in multicultural teams. Hybrid culture includes a mutually shared set of norms, communication patterns, problem-solving approaches, and synergistic task coordination that result from the diverse cultural backgrounds of the team members. Language is the main vehicle for communication and plays a major role in social interaction and therefore hybrid culture building. We argue that the level of perceived language proficiency of multicultural team members influences hybrid culture building; consequently, adequate language skills lead not only to an efficient task solution but are also an important factor in creating interpersonal relationships and building a shared culture. Our empirical analysis supports the positive influence of language proficiency in hybrid teams; however, foreign language proficiency is more influential on cognitively oriented areas of multicultural teamwork than on affective ones. Y1 - 2020 U6 - https://doi.org/10.1177/2329488417710440 VL - 57 IS - 4 SP - 497 EP - 516 ER - TY - JOUR A1 - Gandjour, Afschin A1 - Schüßler, Sofia A1 - Hammerschmidt, Thomas A1 - Dintsios, Charalabos‑Markos T1 - Predictors of negotiated prices for new drugs in Germany JF - The European Journal of Health Economics N2 - Introduction: In Germany, all new, innovative medicines are subject to an early benefit assessment by the German Federal Joint Committee with subsequent price negotiation and optional arbitration. The purpose of this study was to identify drivers of negotiated (including arbitrated) prices of new, non-orphan innovative medicines in Germany. Methods: The analysis considered all non-orphan drugs that underwent a benefit appraisal between January 2011 and June 2016, and displayed a reimbursement price in the German Drug Directory (Lauer-Taxe®) in November 2017. Negotiated annual treatment costs were analyzed with respect to 11 explanatory variables in regression models. Results: The total sample included 106 non-orphan drugs. The analysis showed a significant and positive association of log-transformed negotiated annual treatment cost of new medicines with log-transformed annual treatment cost of its comparator(s), extent of added benefit, and log-transformed size of the target population. Analyzing the effects of specific endpoints instead of the overall added benefit revealed that the single endpoint with the largest impact on price is adverse events (AEs). Surprisingly, an increase in AEs significantly increased the price. Various subgroup and sensitivity analyses demonstrated the robustness of the results. The adjusted R squared for all models was above 80%. Conclusions: The analysis was able to confirm that variables whose consideration is mandated by law are, in fact, the key drivers of negotiated prices. Somewhat puzzling, the analysis also found an increase in AEs to move prices significantly upward. KW - Innovative medicines, Pricing, Prediction, Negotiation, AMNOG Y1 - 2020 UR - https://doi.org/10.1007/s10198-020-01201-z VL - 21 SP - 1049 EP - 1057 ER - TY - RPRT A1 - Geladze, Ekaterine A1 - Schanda, Ulrich A1 - Châteauvieux-Hellwig, Camille A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. T1 - Bauakustik meets BIM T2 - Jahresbericht 2019, Forschung - Entwicklung - Innovation KW - BIM Y1 - 2020 ER - TY - JOUR A1 - Hacker, Bernd A1 - Danzer, Stephan T1 - Digitalisierung im Finanzbereich – Bilanzielle Behandlung von ERP- und RPA-Systemen am Beispiel von SAP S4/HANA bei Kreditinstituten JF - PIR KW - Digitalisierung KW - IFRS KW - SAP/S4 HANA KW - Banken Y1 - 2021 VL - 5 IS - 7 SP - 258 EP - 262 PB - nwb-Verlag CY - Herne ER - TY - CHAP A1 - Hacker, Bernd A1 - Hornig, Stephan T1 - Goodwill-Bilanzierung und volkswirtschaftliche Stabilität – Wider die konzeptionelle Überlegenheit des Impairment-Only-Ansatzes T2 - Fragestellungen und Perspektiven der Rechnungslegung nach HGB und IFRS, Festschrift zum 65. Geburtstag von Dr. Norbert Lüdenbach KW - IFRS KW - Goodwill KW - Firmenwert KW - Volkswirtschaftliche Stabilität KW - IFRS KW - Goodwill KW - Firmenwert KW - Volkswirtschaftliche Stabilität Y1 - 2020 SP - 261 EP - 283 PB - nwb-Verlag CY - Herne ER - TY - JOUR A1 - Hacker, Bernd A1 - Rannetsperger, Thomas T1 - Empirische Untersuchung branchenspezifischer Impairmentzinssätze nach IFRS JF - NWB Internationale Rechnungslegung – PiR KW - Goodwill KW - Impairment KW - IFRS KW - Zinssatz Y1 - 2021 VL - 5 IS - 1 SP - 8 EP - 11 PB - nwb-Verlag CY - Herne ER - TY - JOUR A1 - Hacker, Bernd A1 - Spanheimer, Jürgen A1 - Weides, Dorothee T1 - Neue Hedge-Accounting-Vorschriften im Vorfeld der IBOR-Reform – Änderungen an IFRS 9, IAS 39 und IFRS 7 JF - KoR - Zeitschrift für internationale und kapitalmarktorientierte Rechnungslegung (KoR) KW - IBOR KW - IFRS KW - Hedge Accounting Y1 - 2021 VL - 20 IS - 3 SP - 113 EP - 119 PB - Beck CY - München ER -