@inproceedings{26630, author = {{Altepeter, Matthias and Schöppner, Volker and Wanke, Sven}}, title = {{{Analysis and modelling of the material degradation of polypropylene on the co-rotating twin-screw extruder}}}, year = {{2021}}, } @book{26635, author = {{Schlegel-Matthies, Kirsten and Wespi, Claudia}}, isbn = {{ISBN-13: 9783834020314}}, pages = {{245}}, publisher = {{Baltmannsweiler: Schneider-Verlag.}}, title = {{{Wirksamer Unterricht für Lebensführung. (Unterrichtsqualität: Perspektiven von Expertinnen und Experten 12) }}}, volume = {{12}}, year = {{2021}}, } @book{26649, abstract = {{Within the scope of the research project, four new mechanical joining processes for the singlestage, pre-hole-free joining of FRP-FRP joints were further developed. For this purpose, the joining processes under consideration were first implemented on existing equipment at the research institute. Based on the successful adaptation of the joining processes, characteristics of the joints were documented by means of micrographs and observation of external characteristics, on the basis of which measures for process modification were derived. The process modifications were carried out on a process-specific basis for a selected GFRPGFRP joint. The aim was to improve the joint quality, in particular with regard to the reduction of laminate damage, by means of targeted element and tool development in addition to the increase in process stability. Based on these results, a realistic suitability evaluation of the joining methods was carried out with regard to process and manufacturing flexibility. As a result, two self-piercing riveting processes, which showed the greatest suitability potential, were examined in more detail to analyse the application limits. In the process, the joints were sampled on further material combinations with varied fibre and matrix systems. In addition, joints with adhesive were investigated, in which the influence of the adhesive viscosity on the joint properties was analysed. The joint properties of the new joining method were then comprehensively determined by tensile tests under quasi-static, cyclic loads. Finally, the behaviour of the optimised joints under corrosive load was characterised in the salt spray test. Through the targeted process modifications in this project, the FRP-FRP joints can be joined with less damage, enabling improved joint quality in the FRP-based components.}}, author = {{Han, Daxin and Meschut, Gerson}}, isbn = {{978-3-86776-618-0}}, title = {{{Mechanisches Fügen von FKV-FKV-Verbindungen}}}, year = {{2021}}, } @inbook{26874, author = {{Klünder, Nina}}, booktitle = {{Wörterbuch. Soziale Arbeit}}, editor = {{Amthor, Ralph-Christian and Goldberg, Brigitta and Hansbauer, Peter and Landes, Benjamin and Wintergerst, Theresia}}, isbn = {{978-3-7799-3869-9}}, pages = {{997--999}}, publisher = {{Beltz Juventa}}, title = {{{Wörterbuch. Soziale Arbeit}}}, year = {{2021}}, } @phdthesis{26880, abstract = {{Die Globalisierung stellt Unternehmen, die international mit verteilten Gruppen agieren, vor Herausforderungen. Kreativität ist ein entscheidender Faktor für Unternehmen, um neue Produkte und Dienstleistungen zu gestalten und sich auf dieser Basis von Wettbewerbern abzuheben. Um verteilt agierende Gruppen in ihrer Kreativität zu unterstützen, gibt es bereits Community-Plattformen, die die Zusammenarbeit zur Problemlösung steigern. Eine direkte Methode zur Stimulation der Kreativität verteilt agierender Gruppen existiert bisher nicht. Die Virtual Reality (VR)-Technologie bietet Potenziale auf Basis visueller Stimulation die Kreativität zu unterstützen.Ziel dieser Arbeit ist die Untersuchung der Rahmenbedingungen zur Gestaltung einer VR-basierten Kreativitätstechnik und darauf aufbauend die Entwicklung der „Reizumgebungsmethode“,die durch ein VR-basiertes Werkzeug unterstützt wird. Die Grundlage für die Rahmenbedingungen resultiert aus dem Stand der Wissenschaft der Bereiche Kreativität, verteilt agierende Gruppen und Teams und VR. Aus diesen Bereichen werden Einflussfaktoren analysiert, Leitlinien entwickelt und diese für die Komponenten der Kreativitätstechnik kategorisiert. Auf Basis der Leitlinien wird die „Reizumgebungsmethode“, bestehend aus den Komponenten Kreativitätsprozess, VR-basiertes Werkzeug und virtuelle Kreativumgebungen entwickelt. In Form einer dreistufigen Validierung wird die entwickelte „Reizumgebungsmethode“ untersucht.}}, author = {{Taplick, Patrick}}, publisher = {{LibreCat University}}, title = {{{Kollaborative, virtuelle Kreativumgebungen - Unterstützung der Ideengenerierung durch Virtual Reality}}}, doi = {{10.17619/UNIPB/1-1190}}, year = {{2021}}, } @phdthesis{26900, abstract = {{Mit Hilfe der additiven Fertigung, insbesondere dem pulverbettbasierten selektiven Laserstrahl-schmelzen (LBM), können hochkomplexe Strukturen endkonturnah hergestellt werden. Die große Designfreiheit ermöglicht, zelluläre Leichtbaustrukturen zu erzeugen, deren mikrostrukturellen und mechanischen Eigenschaften direkt vom generativen Fertigungsverfahren abhängen. Insbesondere im Bereich des Leichtbaus bieten zelluläre Strukturen neue Ansätze zur Verminderung des Energieverbrauchs. Um dieses Potential vollständig ausschöpfen zu können, müssen die Effekte, die zum Versagen der Bauteile mit integrierten Gitterstrukturen führen, quantitativ beschrieben und verstanden werden. Dies ist Voraussetzung für eine sichere Auslegung. Dazu werden im Rahmen der vorliegenden Arbeit die charakteristischen Eigenschaften dieser Strukturen sowie die Einflussgrößen im Aufbauprozess näher beleuchtet. Im Rahmen dieser Dissertation werden numerische und experimentelle Untersuchungen von zwei unterschiedlichen Gitterstrukturtypen aus den Werkstoffen 316L und TiAl6V4 vorgestellt. Beide Werkstoffe werden unter monotoner, einachsiger Belastung getestet. Die parallel dazu durchgeführte digitale Bildkorrelation (DIC) ermöglicht gleichzeitig die detaillierte Analyse der lokalen Dehnungsverteilung während der Verformung. Mikrostrukturelle Eigenschaften und die resultierenden Gittercharakteristika werden mit Hilfe von rasterelektronenmikroskopischen Analysemethoden untersucht. Zudem erfolgt die Entwicklung eines Finite-Elemente- Modells, mit der Anforderung eines möglichst geringen Rechenaufwandes. Ein abschließender Vergleich der realen Dehnungsverteilung mit der FE- Analyse verifiziert das Modell.}}, author = {{Sieger, Alexander}}, isbn = {{ 978-3-8440-7924-1}}, keywords = {{Additive Fertigung, TiAl6V4, 316L, Gitterstrukturen, L-PBF}}, pages = {{136}}, title = {{{Mikrostrukturausprägung additiv gefertigter Gitterstrukturen}}}, volume = {{23}}, year = {{2021}}, } @article{28989, author = {{Bothe, Mike and Lutters, Nicole and Kenig, Eugeny}}, journal = {{Chemical Engineering Transactions}}, title = {{{Examination of hazardous situations in industrial closed-loop processes using dynamic simulations}}}, doi = {{10.3303/CET2188117}}, year = {{2021}}, } @inbook{26995, author = {{Gräßler, Iris and Oleff, Christian and Scholle, Philipp}}, booktitle = {{Mehrzieloptimierte und durchgängig automatisierte Bauteilentwicklung für Additive Fertigungsverfahren im Produktentstehungsprozess}}, editor = {{Koch, Rainer and Gräßler, Iris and Zimmer, Detmar and Tröster, Thomas}}, isbn = {{978-3-8440-7932-6}}, pages = {{31 -- 49}}, publisher = {{Shaker}}, title = {{{Strategisch-technische Anforderungsanalyse}}}, year = {{2021}}, } @inproceedings{26997, author = {{Ehlert, Meik and Michael, Jan and Henke, Christian and Trächtler, Ansgar and Kalla, Matthias and Bagaber, Bakr and Ponick, Bernd and Mertens, Axel}}, booktitle = {{Proceedings of the International Conference on SMACD and 16th Conference on PRIME}}, pages = {{164--167}}, title = {{{Connecting Energy Storages from Tool Independent, Signal-flow Oriented FMUs}}}, year = {{2021}}, } @article{27014, abstract = {{Purpose: To examine the prospective relevance of dietary sugar intake (based on dietary data as well as urinary excretion data) in adolescent years for insulin sensitivity and biomarkers of inflammation in young adulthood.Methods: Overall 254 participants of the DONALD study who had at least two 3-day weighed dietary records for calculating intakes of fructose, glucose, sucrose, total, free, added sugars, total sugars from sugar-sweetened beverages (SSB), juice, and sweets/sugar or at least two complete 24 h urine samples (n = 221) for calculating sugar excretion (urinary fructose and urinary fructose + sucrose) in adolescence (females: 9–15 years, males: 10–16 years) and a fasting blood sample in adulthood (18–36 years), were included in multivariable linear regression analyses assessing their prospective associations with adult homeostasis model assessment insulin sensitivity (HOMA2-%S) and a pro-inflammatory score (based on CRP, IL-6, IL-18, leptin, chemerin, adiponectin).Results: On the dietary intake level, no prospective associations were observed between adolescent fructose, sucrose, glucose, added, free, total sugar, or total sugar from SSB, juice or sweets/sugar intake and adult HOMA2-%S (p &gt; 0.01). On the urinary level, however, higher excreted fructose levels were associated with improved adult HOMA2-%S (p = 0.008) among females only. No associations were observed between dietary or urinary sugars and the adult pro-inflammatory score (p &gt; 0.01).Conclusion: The present study did not provide support that dietary sugar consumed in adolescence is associated with adult insulin sensitivity. The one potential exception was the moderate dietary consumption of fructose, which showed a beneficial association with adult fasting insulin and insulin sensitivity.}}, author = {{Della Corte, Karen A. and Penczynski, Katharina and Kuhnle, Gunter and Perrar, Ines and Herder, Christian and Roden, Michael and Wudy, Stefan A. and Remer, Thomas and Alexy, Ute and Buyken, Anette}}, issn = {{2296-861X}}, journal = {{Frontiers in Nutrition}}, title = {{{The Prospective Association of Dietary Sugar Intake in Adolescence With Risk Markers of Type 2 Diabetes in Young Adulthood}}}, doi = {{10.3389/fnut.2020.615684}}, year = {{2021}}, } @inproceedings{27048, author = {{Dolev, Shlomi and Prasadh Narayanan, Ram and Scheideler, Christian and Schindelhauer, Christian}}, booktitle = {{NANOCOM '21: The Eighth Annual ACM International Conference on Nanoscale Computing and Communication, Virtual Event, Italy, September 7 - 9, 2021}}, editor = {{Galluccio, Laura and Mitra, Urbashi and Magarini, Maurizio and Abada, Sergi and Taynnan Barros, Michael and Krishnaswamy, Bhuvana}}, pages = {{30:1--30:2}}, publisher = {{ACM}}, title = {{{Logarithmic Time MIMO Based Self-Stabilizing Clock Synchronization}}}, doi = {{10.1145/3477206.3477471}}, year = {{2021}}, } @inbook{27089, author = {{Koldewey, Christian and Gausemeier, Jürgen and Dumitrescu, Roman and Evers, Hans Heinrich and Frank, Maximilian and Reinhold, Jannik}}, booktitle = {{Digitalization}}, editor = {{Schallmo, Daniel R. and Tidd, Joseph}}, pages = {{205--237}}, publisher = {{Springer}}, title = {{{Development Process for Smart Service Strategies: Grasping the Potentials of Digitalization for Servitization}}}, year = {{2021}}, } @inbook{27090, author = {{Pierenkemper, Christoph and Gausemeier, Jürgen}}, booktitle = {{Digitalization}}, editor = {{Schallmo, Daniel R. and Tidd, Joseph}}, publisher = {{Springer}}, title = {{{Developing Strategies for Digital Transformation in SMEs with Maturity Models}}}, year = {{2021}}, } @article{27114, abstract = {{Abstract Background/objectives Adolescence is a critical period for both the development of overweight and the transition toward a later chronotype, often accompanied by an increase in social jetlag. This study assessed whether changes in chronotype and social jetlag, are linked to changes in body composition during adolescence. Subjects/methods We used data from the DONALD open cohort study, collected between 2014 and 2019, from 213 adolescents (9–17 years at baseline, 45% females) having at least two measures of chronotype and anthropometry (N = 572). Chronotype was assessed with the Munich Chronotype Questionnaire and defined as: midpoint of sleep corrected for sleep-debt (MSFsc) accumulated over the week (later MSFsc represents later chronotype). Social jetlag (SJL) defines the difference between midpoint of sleep during week and weekend. Calculations for Fat Free Mass Index (FFMI [kg/m2)]) and Fat Mass Index (FMI) [kg/m2)]) were based on body fat percentage, weight, and height. To analyze the associations, we used linear mixed-effect regression models. Finally, the total cohort was split into three biologically relevant age groups (cut-off set at <12 years, ≥12 to ≤15 years and >15 years). Results Median follow-up was 2.1 years. Overall, change toward a later chronotype was significantly related with an increase in FMI (ß: 0.05, 95% CI: 0.01–0.08). A 1 h increase in social jetlag predicted an increase in BMI-SDS of 0.08 SDS units (95% CI: 0.01–0.14) and in FMI of 0.04 kg/m2 (95% CI: 0.003–0.08). Associations were stronger for the age group ≥12 to ≤15 years (p for interaction: <0.001). No relationship was found with FFMI. Conclusions Changes in MSFsc and SJL during adolescence were associated with concurrent changes in BMI-SDS and FMI. The age ≥12 to ≤15 years appears to be a sensitive period in which chronobiological changes were clearly associated with increasing body fatness. }}, author = {{Jankovic, Nicole and Schmitting, Sarah and Krüger, Bettina and Nöthlings, Ute and Buyken, Anette E. and Alexy, Ute}}, issn = {{0954-3007}}, journal = {{European Journal of Clinical Nutrition}}, title = {{{Changes in chronotype and social jetlag during adolescence and their association with concurrent changes in BMI-SDS and body composition, in the DONALD Study}}}, doi = {{10.1038/s41430-021-01024-y}}, year = {{2021}}, } @article{27123, author = {{Poddubnyi, Vladimir I. and Trächtler, Ansgar and Warkentin, Andreas and Henke, Christian}}, journal = {{Russian Engineering Research}}, number = {{3}}, pages = {{198--201}}, publisher = {{Springer}}, title = {{{Model of a Triangular Caterpillar Drive and Analysis of Vertical Vehicle Dynamics}}}, volume = {{41}}, year = {{2021}}, } @article{27199, author = {{Aßmuth, Verena and Meschut, Gerson}}, issn = {{0143-7496}}, journal = {{International Journal of Adhesion and Adhesives}}, publisher = {{Elsevier}}, title = {{{Effect of low-profile additives on the durability of adhesively bonded Sheet Moulding Compound (SMC)}}}, doi = {{10.1016/j.ijadhadh.2021.103036}}, volume = {{112}}, year = {{2021}}, } @inproceedings{27211, author = {{Wende, Marc and Fischer, Florian and Kenig, Eugeny}}, booktitle = {{24th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES‘21) }}, location = {{Brno, Tschechische Republik}}, title = {{{Numerical and Experimental Investigation of Zero-Gravity Distillation Units}}}, year = {{2021}}, } @misc{27366, author = {{Moritzer, Elmar and Hecker, Felix}}, booktitle = {{Jahresmagazin Kunststofftechnik}}, pages = {{70--75}}, title = {{{Untersuchung der mechanischen Eigenschaften, Hintergründe und weitere Entwicklungen im Kunststoff Freiformen}}}, year = {{2021}}, } @article{27490, author = {{Schmolke, Tobias and Meschut, Gerson}}, journal = {{stahl.}}, pages = {{37--39}}, publisher = {{Vulkan-Verlag GmbH}}, title = {{{Konzeptentwicklung für ein Stahlbatteriegehäuse}}}, volume = {{3-4 / 2021}}, year = {{2021}}, } @article{27528, abstract = {{

Inhalt Additive Fertigungsverfahren bieten große Vorteile in der Bauteilgestaltung, können aufgrund ihrer Verfahrenseigenschaften aber auch zu einer Erhöhung der Bauteilfunktionalität beitragen. Mit dem Laser-Strahlschmelzen lassen sich Partikeldämpfer direkt im Fertigungsprozess in die Bauteile integrieren und an die vorliegenden Randbedingungen anpassen. Hierzu wird eine experimentelle Methode basierend auf der komplexen mechanischen Leistung vorgestellt. Aus Kennfeldern werden für unterschiedliche geometrische Einflüsse erste Konstruktionsregeln abgeleitet, die in der Anwendung im Konstruktionsprozess als eine Hilfestellung zur Erhöhung der Bauteildämpfung zur Reduzierung unerwünschter Schwingungen dienen.

}}, author = {{Künneke, Thomas and Zimmer, Detmar}}, issn = {{0720-5953}}, journal = {{Konstruktion}}, pages = {{72--78}}, title = {{{Konstruktionsregeln für additiv gefertigte Partikeldämpfer/Design rules for additive manufactured particle dampers}}}, doi = {{10.37544/0720-5953-2021-11-12-72}}, year = {{2021}}, }