TY - JOUR AU - Brand-Miller, Jennie AU - Buyken, Anette ID - 28011 JF - Nature Medicine SN - 1078-8956 TI - Mapping postprandial responses sets the scene for targeted dietary advice ER - TY - JOUR AB - Abstract Background Due to the increasing use of information and communication technology, computer-related skills are important for all students in order to participate in the digital age (Fraillon, J., Ainley, J., Schulz, W., Friedman, T. & Duckworth, D. (2019). Preparing for life in a digital world: IEA International Computer and Information Literacy Study 2018 International Report. Amsterdam: International Association for the Evaluation of Educational Achievement (IEA). Retrieved from https://www.iea.nl/sites/default/files/2019-11/ICILS%202019%20Digital%20final%2004112019.pdf). Educational systems play a key role in the mediation of these skills (Eickelmann. Second Handbook of Information Technology in Primary and Secondary Education. Cham: Springer, 2018). However, previous studies have shown differences in students’ computer and information literacy (CIL). Although various approaches have been used to explain these differences, process data, such as response times, have never been taken into consideration. Based on data from the IEA-study ICILS 2013 of the Czech Republic, Denmark and Germany, this secondary analysis examines to what extent response times can be used as an explanatory approach for differences in CIL also within different groups of students according to student background characteristics (gender, socioeconomic background and immigrant background). Methods First, two processing profiles using a latent profile analysis (Oberski, D. (2016). Mixture Models: Latent Profile and Latent Class Analysis. In J. Robertson & M. Kaptein (Eds.), Modern Statistical Methods for HCI (pp. 275–287). Switzerland: Springer. 10.1007/978-3-319-26633-6) based on response times are determined—a fast and a slow processing profile. To detect how these profiles are related to students’ CIL, also in conjunction with students’ background characteristics (socioeconomic and immigrant background), descriptive statistics are used. Results The results show that in the Czech Republic and Germany, students belonging to the fast processing profile have on average significantly higher CIL than students allocated to the slow processing profile. In Denmark, there are no significant differences. Concerning the student background characteristics in the Czech Republic, there are significant negative time-on-task effects for all groups except for students with an immigrant background and students with a high parental occupational status. There are no significant differences in Denmark. For Germany, a significant negative time-on-task effect can be found among girls. However, the other examined indicators for Germany are ambiguous. Conclusions The results show that process data can be used to explain differences in students’ CIL: In the Czech Republic and Germany, there is a correlation between response times and CIL (significant negative time-on-task effect). Further analysis should also consider other aspects of CIL (e.g. reading literacy). What becomes clear, however, is that when interpreting and explaining differences in competence, data should also be included that relates to the completion process during testing. AU - Heldt, Melanie AU - Massek, Corinna AU - Drossel, Kerstin AU - Eickelmann, Birgit ID - 28242 IS - 1 JF - Large-scale Assessments in Education SN - 2196-0739 TI - The relationship between differences in students’ computer and information literacy and response times: an analysis of IEA-ICILS data VL - 8 ER - TY - JOUR AU - Gutt, Dominik AU - von Rechenberg, Tobias AU - Kundisch, Dennis ID - 2834 JF - Journal of Business Research TI - Goal Achievement, Subsequent User Effort and the Moderating Role of Goal Difficulty VL - 106 ER - TY - JOUR AU - Grimminger-Seidensticker, Elke AU - Möhwald, Aiko Julia ID - 28341 IS - 3 JF - Physical Education and Sport Pedagogy SN - 1740-8989 TI - Enhancing social cohesion in PE classes within an intercultural learning program: results of a quasi-experimental intervention study VL - 25 ER - TY - JOUR AB - This article investigates learners’ accounts of and reactions to interlocutors’ evaluations of their L2 pronunciation. Previous studies demonstrate both the pervasiveness of social evaluation processes in native and non-native speaker interactions and the impact of learners’ beliefs about pronunciation on their learning and communicative behavior. Adding to these strands of research, this project sheds light on how learners perceive evaluative reactions to their accents by native speakers and the relationship between such evaluations and learners’ reported evaluative, emotional and behavioral responses. The study draws on 8 international students at a German university. The data were collected in semi-structured interviews and analyzed within the framework of qualitative content analysis. The results give insight into conditions and strategies that may support learners in establishing constructive interpretations of the effects of their accents on their social acceptance. AU - Müller, Mareike AU - Settinieri, Julia ID - 28351 IS - 2 JF - Fremdsprachen Lehren und Lernen TI - "Solange dieser Mann gut Deutsch sprechen kann, ist auch kein Problem...": Evaluative Reaktionen auf einen L2-Akzent aus Sicht von Sprecher*innen VL - 49 ER - TY - THES AU - Echterfeld, Julian ID - 28367 SN - 978-3-947647-12-5 TI - Systematik zur Digitalisierung von Produktprogrammen VL - 393 ER - TY - THES AU - Lukei, Meinolf ID - 28369 SN - 978-3-947647-14-9 TI - Systematik zur integrativen Entwicklung von mechatronischen Produkten und deren Prüfmittel VL - 395 ER - TY - THES AU - Homt, Martina ID - 28416 TI - Die Anbahnung einer forschenden Grundhaltung im Praxissemester – eine empirische Analyse von Bedingungen und Entwicklungsverläufen ER - TY - CONF AB - This paper presents a broadband track-and-hold amplifier (THA) based on switched-emitter-follower (SEF) topology. The THA exhibits both large- and small-signal bandwidth exeeding 60 GHz. It achieves an effective number of bits (ENOB) of 7 bit at 34 GHz input frequency and an ENOB of >5 bit over the whole input frequency bandwidth at sampling rate of 10 GS/s. Much higher sampling rates are possible but lead to somewhat worse performance. The chip was fabricated in a 130 nm SiGe BiCMOS technology from IHP (SG13G2). It draws 78 mA from a -4.8 V supply voltage, dissipating 375 mW. AU - Wu, Liang AU - Weizel, Maxim AU - Scheytt, Christoph ID - 24021 SN - 2158-1525 T2 - 2020 IEEE International Symposium on Circuits and Systems (ISCAS) TI - Above 60 GHz Bandwidth 10 GS/s Sampling Rate Track-and-Hold Amplifier in 130 nm SiGe BiCMOS Technology ER - TY - CONF AB - In this paper we propose a novel low-power receiver architecture which uses a direct-detection receiver in combination with a 2.44 GHz 13 bit Barker Code SAW correlator for improvement of co-channel interference. Furthermore, to improve receiver sensitivity, a narrowband baseband correlator which uses pulse position modulation (PPM) is proposed. The receiver can be used as a Wake-up Receiver (WuRx) in Wireless Sensor Networks (WSN) to minimize the power dissipation and provide asynchronous and on-demand data communication. We present a rigorous analysis of the receiver. It shows that the RF front-end (SAW correlator and envelope detector) alone suffers from poor sensitivity due to the high baseband bandwidth and the absence of an RF low noise amplifier. However, by adding the narrowband correlator with an innovative Pulse Position Modulation (PPM) scheme, the overall sensitivity of the receiver reaches -63.1 dB with an improvement of 17.7 dB due to the use of the narrowband correlator that reduces the baseband bandwidth from 50 to 0.84 MHz. By scaling the narrowband correlator bandwidth further down, the receiver sensitivity can be further improved. AU - Abughannam, Saed AU - Scheytt, Christoph ID - 24022 T2 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2020) TI - Sensitivity Analysis of a Low-Power Wake-Up Receiver Using an RF Barker Code SAW Correlator and a Baseband Narrowband Correlator ER - TY - CONF AB - Fault effect simulation is a well-established technique for the qualification of robust embedded software and hardware as required by different safety standards. Our article introduces a Virtual Prototype based approach for the fault analysis and fast simulation of a set of automatically generated and target compiled software programs. The approach scales to different RISC-V ISA standard subset configurations and is based on an instruction and hardware register coverage for automatic fault injections of permanent and transient bitflips. The analysis of each software binary evaluates its opcode type and register access coverage including the addressed memory space. Based on this information dedicated sets of fault injected hardware models, i.e., mutants, are generated. The simulation of all mutants conducted with the different binaries finally identifies the cases with a normal termination though executed on a faulty hardware model. They are identified as a subject for further investigations and improvements by the implementation of additional hardware or software safety countermeasures. Our final evaluation results with automatic C code generation, compilation, analysis, and simulation show that QEMU provides an adequate efficient platform, which also scales to more complex scenarios. AU - Adelt, Peer AU - Koppelmann, Bastian AU - Müller, Wolfgang AU - Scheytt, Christoph ID - 24027 T2 - MBMV 2020 - Methods and Description Languages for Modelling and Verification of Circuits and Systems; GMM/ITG/GI-Workshop TI - A Scalable Platform for QEMU Based Fault Effect Analysis for RISC-V Hardware Architectures ER - TY - JOUR AB - In this paper we present the system and circuit level analysis and feasibility study of applying microwave Radio Frequency Identification (RFID) systems with multipleinput multiple-output (MIMO) reader technology for tracking machining tools in multipath fading conditions of production environments. In the proposed system the MIMO reader interrogates single-antenna tags, and a high RFID frequency of 5.8 GHz is chosen to reduce the size of the reader's antenna array. According to the requirements dictated by the performed system analysis at 5.8 GHz, a low power fully integrated analog frontend (AFE) is designed and fabricated in a standard 65-nm CMOS technology for low power passive transponders. Performance of the Differential Drive Rectifier (DDR) topology as the core of the energy harvesting unit is investigated in detail. A multi-stage DDR power scavenging unit is dimensioned to provide a 1.2 V rectified voltage for 20-30 kQ load range, with a high power conversion efficiency (PCE) for high frequency and low input power level signals. The rectified voltage is then converted to a 1 V regulated voltage for the AFE and the baseband processor with 30 to 50 μW of estimated power consumption. Transistors with standard threshold voltage (VT) have been used for implementation. Measurements of the fabricated multi-stage configuration of the circuit show a maximum PCE of 68.8% at -12.46 dBm, and an input quality factor (Q-factor) of approximately 10. Amplitude-shift keying (ASK) demodulator and backscattering modulator with 80% modulation index, operating according to EPC-C1G2 protocol are applied for data transfer. The AFE consumes less than 1 μW in the reading mode. The AFE tag chip is 0.55 × 0.58 mm 2 . AU - Haddadian, Sanaz AU - Scheytt, Christoph ID - 24029 JF - IEEE Journal of Radio Frequency Identification TI - Analysis, Design and Implementation of a Fully Integrated Analog Front-End for Microwave RFIDs at 5.8 GHz to be Used with Compact MIMO Readers ER - TY - CONF AB - Low-power receivers use direct-detection receiver architecture for its design simplicity and its low power dissipation. However, the direct-detection based receivers suffer from co-channel interference which significantly degrades the communication reliability. Co-channel interference robustness can be improved by using a BPSK Barker code modulated Surface Acoustic Wave (SAW) correlator as a prior stage to the RF direct detection circuit. This paper reports in details the design, fabrication and measurements of a 2.45 GHz SAW correlator with 13 bits length Barker code. The device is fabricated on Lithium Niobate LiNbO3 substrate and it is composed of an input non-coded Inter Digital Transducers (IDT), a Piezoelectric substrate and an output coded IDT. The device wavelength λ is set to 1.6 μm, considering a phase velocity of the wave equal to 3970 m.s-1. Several configurations of the device were designed and fabricated, particularly varying the aperture and the non-coded IDT length to find out the optimal device configuration. All devices were found to operate with Insertion Loss (IL) ranging from 12 to 15 dB at 2.45 GHz with a tip probing measurement setup, while a packaged sample has an IL of 12.45 dB at 2.44 GHz mounted on a PCB with external 50 Ω LC matching network. Additionally, time-domain measurement for the packaged device shows that the output has a correlation peak with a peak-to-side-lobe (PSL) ratio of 4:1 for a -0.5 dBm input BPSK Barker code signal. AU - Ballandras, Sylvain AU - Abughannam, Saed AU - Courjon, Emilie AU - Scheytt, Christoph ID - 24030 T2 - GeMiC 2020 - German Microwave Conference TI - Design and Fabrication of Barker Coded Surface Acoustic Wave (SAW) Correlator at 2.45 GHz for Low-Power Wake-up Receivers ER - TY - JOUR AU - Schraeder, Dirk Theodor AU - Schafran, Tommy AU - Geisen, Bärbel AU - Rubbert, Lisa ID - 24031 JF - Orthopädie Technik TI - Ein interdisziplinärer und akutmedizinischer Ansatz zur frühestmöglichen Intervention bei Patienten mit Diabetischem Fußsyndrom VL - 71 (9) ER - TY - JOUR AB - Abstract In two-phase flows in which the Capillary number is low, errors in the computation of the surface tension force at the interface cause Front-Capturing methods such as Volume of Fluid (VOF) and Level-Set (LS) to develop interfacial spurious currents. To better solve low Capillary number flows, special treatment is required to reduce such spurious currents. Smoothing the phase indicator field to more accurately compute the curvature or adding interfacial artificial viscosity are techniques that can treat this problem. This study explores OpenFOAM, Fluent and StarCCM+ VOF solvers for the classical case of a static bubble/droplet immersed in a continuous aqueous phase, with the focus on the ability of these solvers to adequately reduce spurious currents. The results are expected to be helpful for practicing chemical engineers who use multiphase CFD solvers in their work. AU - Inguva, Venkatesh AU - Schulz, Andreas AU - Kenig, Eugeny Y. ID - 24120 JF - Chemical Product and Process Modeling SN - 1934-2659 TI - On methods to reduce spurious currents within VOF solver frameworks. Part 1: a review of the static bubble/droplet ER - TY - GEN AU - Schöppner, Volker AU - Austermeier, Laura AU - Dietl, Kilian ID - 24133 KW - Compoundieren KW - Doppenschneckenextruder KW - Energieeintrag T2 - Blasformen & Extrusionswerkzeuge TI - Der richtige Dreh für Simulationen ER - TY - GEN AU - Schöppner, Volker AU - Austermeier, Laura AU - Dietl, Kilian ID - 24134 KW - Compoundieren KW - Doppenschneckenextruder KW - Energieeintrag T2 - K Zeitung TI - SKZ simuliert Doppelschnecke ER - TY - CONF AU - Ramaswamy, Arunselvan ID - 24145 T2 - 2020 28th Euromicro International Conference on Parallel, Distributed and Network-Based Processing (PDP) TI - DSPG: Decentralized Simultaneous Perturbations Gradient Descent Scheme ER - TY - CONF AU - Heid, Stefan Helmut AU - Ramaswamy, Arunselvan AU - Hüllermeier, Eyke ID - 24146 T2 - Proceedings-30. Workshop Computational Intelligence: Berlin, 26.-27. November 2020 TI - Constrained Multi-Agent Optimization with Unbounded Information Delay VL - 26 ER - TY - JOUR AU - Ramaswamy, Arunselvan AU - Bhatnagar, Shalabh AU - Quevedo, Daniel E ID - 24147 JF - IEEE Transactions on Automatic Control TI - Asynchronous stochastic approximations with asymptotically biased errors and deep multi-agent learning ER - TY - JOUR AB - AbstractThis paper presents the results of an interlaboratory study of the rheological properties of cement paste and ultrasound gel as reference substance. The goal was to quantify the comparability and reproducibility of measurements of the Bingham parameters yield stress and plastic viscosity when measured on one specific paste composition and one particular ultrasound gel in different laboratories using different rheometers and measurement geometries. The procedures for both in preparing the cement paste and carrying out the rheological measurements on cement paste and ultrasound gel were carefully defined for all of the study’s participants. Different conversion schemes for comparing the results obtained with the different measurement setups are presented here and critically discussed. The procedure proposed in this paper ensured a reasonable comparability of the results with a coefficient of variation for the yield stress of 27% and for the plastic viscosity of 24%, despite the individual measurement series’ having been performed in different labs with different rheometers and measurement geometries. AU - Haist, Michael AU - Link, Julian AU - Nicia, David AU - Leinitz, Sarah AU - Baumert, Christian AU - von Bronk, Tabea AU - Cotardo, Dario AU - Eslami Pirharati, Mahmoud AU - Fataei, Shirin AU - Garrecht, Harald AU - Gehlen, Christoph AU - Hauschildt, Inga AU - Ivanova, Irina AU - Jesinghausen, Steffen AU - Klein, Christopher AU - Krauss, Hans-W. AU - Lohaus, Ludger AU - Lowke, Dirk AU - Mazanec, Oliver AU - Pawelczyk, Sebastian AU - Pott, Ursula AU - Radebe, Nonkululeko W. AU - Riedmiller, Joachim Jürgen AU - Schmid, Hans-Joachim AU - Schmidt, Wolfram AU - Secrieru, Egor AU - Stephan, Dietmar AU - Thiedeitz, Mareike AU - Wilhelm, Manfred AU - Mechtcherine, Viktor ID - 24182 JF - Materials and Structures SN - 1359-5997 TI - Interlaboratory study on rheological properties of cement pastes and reference substances: comparability of measurements performed with different rheometers and measurement geometries ER - TY - JOUR AU - Moritzer, Elmar AU - Wortmann, M. AU - Sabantina, L. AU - Klocker, M. AU - Mirasol, JR ID - 24183 IS - 50 JF - JOURNAL OF INDUSTRIAL TEXTILES TI - Stabilization of polyacrylonitrile nanofiber mats obtained by needleless electrospinning using dimethyl sulfoxide as solvent ER - TY - JOUR AU - Moritzer, Elmar AU - Mühlhoff, Frederik Marvin AU - Krampe, Erhard AU - Lochbaum, Ella ID - 24184 IS - 07/20 JF - Plastverarbeiter TI - 2K-Haftverbunde aus originär inkompatiblen Kunststoffen ER - TY - CONF AU - Moritzer, Elmar AU - Kartelmeyer, Stephan AU - Hüttemann, Vincent ID - 24201 T2 - Direct Digital Manufacturing Conference 2020 TI - Additive Manufactured Heat Pipe Injection Mould Element ER - TY - CONF AU - Moritzer, Elmar AU - Hillemeyer, Johannes ID - 24203 T2 - 6. Fachkonferenz 3D-Druck in der Automobielindustrie TI - Additiveteile Direktverschrauben ER - TY - GEN AU - Schöppner, Volker AU - Dörner, M. AU - Marschik, C. ID - 24204 TI - ANALYSIS OF THE ADVANTAGEOUS PROCESS AND MIXING BEHAVIOUR OF WAVE-DISPERSION SCREWS IN SINGLE SCREW EXTRUSION ER - TY - CONF AU - Moritzer, Elmar AU - Hillemeyer, Johannes ID - 24206 T2 - 10. Gemeinschaftskolloquium TI - Ansatz zur sicheren Direktverschraubung additiv gefertigter Einschraubtuben ER - TY - JOUR AU - Schöppner, Volker AU - Dörner, M. AU - Marschik, C. AU - Roland, W. AU - Schaufler, S. AU - Steinbichler, G. ID - 24207 IS - 12(9) JF - Polymers TI - Application of Network Analysis to Flow Systems with Alternating Wave Channels: Part B. (Superimposed Drag-Pressure Flows in Extrusion) ER - TY - CONF AU - Moritzer, Elmar AU - Wittke, M. ID - 24213 T2 - Annual Technical Conference of the Society of Plastics Engineers (ANTEC) 2020 TI - CONTEXT OF FIBER LENGTH DISTRIBUTION, HOMOGENEITY AND MECHANICAL PROPERTIES IN DIRECT COMPOUNDING INJECTION MOLDING OF FIBER REINFORCED THERMOPLASTICS ER - TY - CONF AU - Moritzer, Elmar AU - Krassmann, Dimitri ID - 24228 T2 - 73rd Annual Assembly of the International Institute of Welding (IIW) TI - Development of a New Joining Technology for Hybrid Joints of Sheet Metal and Continuous Fiber-Reinforced Thermoplastics ER - TY - JOUR AU - Schöppner, Volker AU - Dörner, M. AU - Marschik, C. AU - Steinbichler, G. ID - 24231 JF - Polymers TI - Development of an Analytical Model to Describe the Disperse Melting in Wave-Dispersion Screws ER - TY - JOUR AU - Moritzer, Elmar AU - Jilg, J. AU - Schilp, C. AU - Krempl, N. AU - Friesenbichler, W. ID - 24232 JF - Kunststoffe TI - Die Kunst der Entformung ER - TY - JOUR AU - Moritzer, Elmar AU - Hopp, Matthias AU - Wittke, Marius ID - 24233 JF - WAK Jahreszeitschrift TI - EINSATZ VON MASCHINELLEM LERNEN FÜR DIE REZYKLAT-VERARBEITUNG ER - TY - JOUR AU - Moritzer, Elmar AU - Krassmann, Dimitri ID - 24234 JF - Joining Plastics TI - Entwicklung einer neuartigen Fügetechnik für Organoblech-Hybridverbindungen ER - TY - CONF AU - Moritzer, Elmar AU - Krassmann, Dimitri AU - Brikmann, Johannes ID - 24235 T2 - 10. Fügetechnisches Gemeinschaftskolloquium TI - Entwicklung eines Spritzgießsonderverfahrens zur Herstellung von Hybridbauteilen aus faserverstärkten Thermoplasten und Metallblechen ER - TY - CONF AU - Moritzer, Elmar AU - Kartelmeyer, S. AU - Hüttemann, M. AU - Jaroschek, C. ID - 24237 T2 - 78th Annual Technical Conference for Plastics Professionals (ANTEC) TI - INJECTION MOLD COOLED WITH ADDITIVE MANUFACTURED HEAT PIPE CORE-ELEMENT ER - TY - CONF AU - Moritzer, Elmar AU - Mühlhoff, Frederik Marvin ID - 24238 T2 - Annual Technical Conference of the Society of Plastics Engineers (ANTEC) 2020 TI - Inline Surface Activation in the multi Injection Molding Process ER - TY - JOUR AU - Moritzer, Elmar AU - Mühlhoff, Frederik Marvin AU - Lochbaum, Ella AU - Krampe, Erhard ID - 24239 JF - KGK - Rubberpoint TI - InMould-Plasma Technologie - Dauerhaft beständige 2K-Verbunde aus originär inkompatiblen Kunststoffen ER - TY - JOUR AU - Rasche, David B. AU - Tigges, Lena AU - Schmid, Hans-Joachim ID - 24240 JF - Review of Scientific Instruments SN - 0034-6748 TI - An apparatus to synthesize ceramic nanoparticles with a precisely adjusted temperature history and a significant mass output ER - TY - JOUR AB - For gas phase nanoparticle production, hot wall reactors are widely used. In this article, we will describe the fundamental design considerations for a hot wall reactor system able to produce oxide nanoparticles. The system is outstanding in its ability to produce mostly spherical nanoparticles at particle sizes of up to 100 nm and even larger at mass outputs in the order of grams per hour by being able to rapidly quench the aerosol. While high production rates or larger particle sizes are already easily obtained with hot wall reactors, it is very challenging to produce these spherical particles at high mass rates. We will show in this research that the temperature and the particle number concentration are the major aspects influencing the particle morphology at the end of the process. Investigation on the performance of the setup shows good control over the temperature and the particle production stability. A representative particle characterization using SEM and scanning mobility particle sizer showed that particles are mostly spherical, while the particle size distribution had a geometric standard deviation close to 1.5. In addition to the aspects mentioned above, a possibility to manipulate the aggregation downstream of the reactor is to be presented as well. We found that applying electrical charges to the aerosol particles (in opposite polarity) can significantly foster aggregation. AU - Rasche, David B. AU - Tigges, Lena AU - Schmid, Hans-Joachim ID - 24241 JF - Review of Scientific Instruments TI - An Apparatus to Synthesize Ceramic Nanoparticles with a Precisely Adjusted Temperature History and a Significant Mass Output VL - 91 ER - TY - CONF AU - Moritzer, Elmar AU - Hirsch, André AU - Dalmer, C. ID - 24242 T2 - Additive Manufacturing in Products and Applications (AMPA) TI - Investigation of Plastic Freeformed, Open-Pored Structures with Regard to Producibility, Reproducibility and Liquid Permeability ER - TY - JOUR AU - Moritzer, Elmar AU - Mühlhoff, Frederik Marvin AU - Krampe, Erhard ID - 24246 IS - 5 JF - Kunststoff + Verarbeitung TI - Kostensenkung beim Mehrkomponenten-Spritzgießen ER - TY - JOUR AU - Moritzer, Elmar AU - Mühlhoff, Frederik Marvin AU - Krampe, Erhard AU - Böhnke, Birte ID - 24248 JF - Kunststoffe TI - Mehr Materialkombinationen, weniger Kosten ER - TY - JOUR AU - Moritzer, Elmar AU - Wittke, M. ID - 24249 JF - MNWP Magazin TI - Metallsubstitution durch Spritzgießtechnik gerät allmählich in Reichweite ER - TY - JOUR AU - Moritzer, Elmar AU - Mühlhoff, Frederik Marvin AU - Krampe, Erhard AU - Böhnke, Birte ID - 24250 JF - Kunststoffe international TI - More Material Combinations, Lower Costs ER - TY - CONF AU - Moritzer, Elmar AU - Krassmann, Dimitri ID - 24251 T2 - DVS Congress 2020 TI - Neuartige Fügetechnik für Organoblech-Hybridverbindungen ER - TY - JOUR AU - Moritzer, Elmar AU - Wittke, M. ID - 24252 JF - Plastverarbeiter TI - Neue Maßstäbe in puncto Festigkeit und Faserlänge ER - TY - JOUR AU - Moritzer, Elmar AU - Mühlhoff, Frederik Marvin AU - Krampe, Erhard AU - Böhnke, Birte ID - 24253 JF - adhesion ADHESIVES + SEALANTS TI - Plasma technology rationalizes 2-component processes ER - TY - JOUR AU - Moritzer, Elmar AU - Mühlhoff, Frederik Marvin AU - Krampe, Erhard AU - Böhnke, Birte ID - 24256 IS - 10 JF - adhäsion KLEBEN & DICHTEN TI - Plasma-Technologie zur Rationalisierung von 2K-Prozessen ER - TY - GEN ED - Moritzer, Elmar ED - Budde, Christopher ED - Hüttner, Matthias ED - Krassmann, Dimitri ID - 24259 TI - Spritznieten als neue Organoblech-Metall-Hybridfügetechnik ER - TY - CONF AU - Moritzer, Elmar AU - Schumacher, C. ID - 24260 T2 - 4th International Conference Progress on Polymers and Composites Products and Manufacturing Technologies (POLCOM) TI - Stainless steel parts produced by Fused Deposition Modeling and a sintering process compared to components manufactured in Selective Laser Melting ER - TY - JOUR AU - Vogtschmidt, Sascha AU - Fiebig, Isabel AU - Schöppner, Volker ID - 24312 IS - 3-4 JF - Joining Plastics TI - Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien ER - TY - CONF AU - Malatyali, Hatice AU - Schöppner, Volker AU - Behrendt, Alexander AU - Hoemann, Theresa AU - Sporkmann, Frederick AU - Hanselle, Felix ID - 24317 T2 - SPE ANTEC TI - Differences between the recycled carbon fibers especially regarding the product quality, ER - TY - CONF AU - Vogtschmidt, Sascha AU - Schöppner, Volker ID - 24318 T2 - DVS CONGRESS 2020 - Große Schweißtechnische Tagung TI - Wechseldehnungsschweißen - Entwicklung einer Fügetechnologie für 3D-Geometrien VL - 365 ER - TY - JOUR AU - Vogtschmidt, Sascha AU - Schöppner, Volker ID - 24321 JF - Welding in the World TI - Vibration welding of components with angled areas in the direction of vibration VL - 64 ER - TY - JOUR AU - Vogtschmidt, Sascha AU - Schöppner, Volker ID - 24324 IS - 3-4 JF - Joining Plastics TI - Schweißnahtkennwerte für die lebensdaueroptimierte Bauteilauslegung von hochtemperaturbeständigen Thermoplasten ER - TY - CONF AU - Krebs, Benjamin ID - 24373 IS - 21233 T2 - Academy of Management Proceedings TI - Antecedents and Performance Consequences of High-Potential Scheme Use VL - 1 ER - TY - GEN AU - Arndt, Theresa AU - Schöppner, Volker ID - 24385 T2 - Joining Plastics TI - Kunststofftechnik Paderborn: Entwicklung von Scale-Up-Regeln für das quasisimultane Laserdurchstrahlschweißen von Thermoplasten ER - TY - GEN AU - Arndt, Theresa AU - Schöppner, Volker ID - 24386 T2 - K-Zeitung TI - Wenn Regeln Potenziale freisetzen ER - TY - GEN AU - Arndt, Theresa AU - Schöppner, Volker ID - 24387 T2 - PhotonicsViews TI - Quasi-Simultaneous Laser Transmission Welding ER - TY - GEN AU - Mügge, Nils AU - Kronberg, Alexander AU - Glushenkov, Maxim AU - Kenig, Eugeny ID - 24445 T2 - Jahrestreffen der ProcessNet-Fachgruppe „Energieverfahrenstechnik“ TI - Modellierung des Wärmetransports in zyklisch durchströmten Wärmeübertragern ER - TY - CONF AU - Schöppner, Volker AU - Bialaschik, Max ID - 24471 T2 - 73th Annual Assembly of the International Institute of Welding (IIW) TI - Influence of Material Degradation on Weld Seam Quality in Hot Gas Welding of Polyamides ER - TY - GEN AU - Moritzer, Elmar AU - Wächter, Julian ID - 24478 TI - From filament production to material qualification for the FDM process ER - TY - CONF AU - Krivská, Barbora AU - Šlapáková, Michaela AU - Kihoulou, Martin AU - Králík, Rostislav AU - Bajtošová, Lucia AU - Cieslar, Miroslav AU - Grydin, Olexandr AU - Stolbchenko, Mykhailo AU - Schaper, Mirko ID - 24567 T2 - Proc. 20th Conference of Czech and Slovak Physicists TI - Interdiffusion in aluminum-steel clad strip ER - TY - JOUR AB - Goal. This article is devoted to the development of a new method of roll-crystallizers profiling for twin-roll casting in order to provide the possibility of manufacturing strips with variable geometry on width as one of the more widely used products in the world. Method. The proposed method of profiling is implemented by using profiling strips that cover one or both rolls-crystallizers. In this way achieved profiling of the surface of the cylindrical internally water-cooled rolls, which corresponds to the desired type of strips profiled cross-section. Research results. For the practical implementation of the proposed profiling method was developed device for twin-roll of strips with profiled cross- section. In this paper presented the basic scheme of developed device for twin-roll casting of strips with profiled cross-section using endless strips and given the principle of operation of developed device for profiling. Scientific novelty. A feature of the developed device is its universality, which provides the possibility of synchronous rotation of tension, profiled and compensating-tension rollers in perpendicular plane to the axis of rotation of the rolls-crystallizers. This implementation of the device for twin-roll casting allows to manufacture different types of strips with profiled cross-section. Practical significance. For developed device for twin-roll casting of strips with profiled cross-section has been obtained patent for the invention of Ukraine. For further practical implementation of the developed device, considering the adjustments that provide practical implementation on a specific laboratory twin-roll casting unit, the device of twin-roll casting of strips with profiled cross-section was designed. In the work are presented the basic structural elements and their appearance in the form of three-dimensional models. AU - Bondarenko, Serhii AU - Grydin, Olexandr AU - Oginskiy, Yosyp AU - Kuzmina, Olga AU - Frolov, Yaroslav ID - 24568 IS - 1 JF - Theory and practice of metallurgy SN - 1028-2335 TI - Device for twin-roll casting of strips with profiled cross-section ER - TY - CONF AU - KŘIVSKÁ, Barbora AU - ŠLAPÁKOVÁ, Michaela AU - Grydin, Olexandr AU - CIESLAR, Miroslav ID - 24569 T2 - METAL 2020 Conference Proeedings TI - Aluminum-steel clad material prepared by twin-roll casting ER - TY - JOUR AU - Frolov, Yaroslav AU - Haranich, Yurii AU - Bobukh, Olexandr AU - Remez, Oleg AU - Voswinkel, Dietrich AU - Grydin, Olexandr ID - 24570 JF - Journal of Manufacturing Processes SN - 1526-6125 TI - Deformation of expanded steel mesh inlay inside aluminum matrix during the roll bonding VL - 58 ER - TY - JOUR AU - Bondarenko, Serhii AU - Grydin, Olexandr AU - Frolov, Yaroslav AU - Kuzmina, Olga AU - Bobukh, Olexandr ID - 24574 JF - Modern Problems of Metallurgy – Scientific Bulletin TI - Cold rolling of pre-profiled strips from aluminum alloy EN AW-1050 VL - 23 ER - TY - JOUR AU - Jesper, Mateo AU - Schlosser, Florian AU - Pag, Felix AU - Walmsley, Timothy Gordon AU - Schmitt, Bastian AU - Vajen, Klaus ID - 24622 JF - Renewable and Sustainable Energy Reviews SN - 1364-0321 TI - Large-scale heat pumps: Uptake and performance modelling of market-available devices ER - TY - THES AU - Schlosser, Florian ID - 24629 SN - 978‐3‐7376‐0942‐5 TI - Integration von Wärmepumpen zur Dekarbonisierung der industriellen Wärmeversorgung VL - 25 ER - TY - JOUR AB - Heat pumps are the key technology to decarbonise thermal processes by upgrading industrial surplus heat using renewable electricity. Existing insight-based integration methods refer to the idealised Grand Composite Curve requiring the full exploitation of heat recovery potential but leave the question of how to deal with technical or economic limitations unanswered. In this work, a novel Heat Pump Bridge Analysis (HPBA) is introduced for practically targeting technical and economic heat pump potential by applying Coefficient of Performance curves into the Modified Energy Transfer Diagram (METD). Removing cross-Pinch violations and operating heat exchangers at minimum approach temperatures by combined application of Bridge Analysis increases the heat recovery rate and reduce the temperature lift to be pumped at the same time. The insight-based METD allows the individual matching of heat surpluses and deficits of individual streams with the capabilities and performance of different market-available heat pump concepts. For an illustrative example, the presented modifications based on HPBA increase the economically viable share of the technical heat pump potential from 61% to 79%. AU - Schlosser, Florian AU - Wiebe, Heinrich AU - Walmsley, Timothy G. AU - Atkins, Martin J. AU - Walmsley, Michael R. W. AU - Hesselbach, Jens ID - 24630 JF - Energies SN - 1996-1073 TI - Heat Pump Bridge Analysis Using the Modified Energy Transfer Diagram ER - TY - JOUR AU - Schlosser, F. AU - Jesper, M. AU - Vogelsang, J. AU - Walmsley, T.G. AU - Arpagaus, C. AU - Hesselbach, J. ID - 24631 JF - Renewable and Sustainable Energy Reviews SN - 1364-0321 TI - Large-scale heat pumps: Applications, performance, economic feasibility and industrial integration ER - TY - GEN AU - Lieneke, Tobias AU - Künneke, Thomas AU - Eschner, Niclas AU - Jacob, Alexander AU - Schäfer, Martin AU - Hickmann, Thorsten AU - Faroun, Rami AU - Hoffmann, Markus AU - Scholl, Markus AU - Baumeister, Kai AU - Zimmer, Detmar AU - Lanza, Gisela ID - 24669 SN - 978-3-00-065337-7 TI - Kombination und Integration etablierter Technologien mit additiven Fertigungsverfahren ER - TY - THES AU - Kurek, Rafael ID - 24710 TI - Efficient Cryptographic Constructions with Strong Security Guarantees ER - TY - JOUR AU - Peter F. E. Sloane, Dieter Euler, Tobias Jenert ID - 25733 IS - 4 JF - Berufsbildung in Wissenschaft und Praxis TI - Transfer und Kooperation im regionalen Kontext. Erfahrungen aus der Forschung zu kommunalem Bildungsmanagement VL - 49 ER - TY - GEN ED - Moritzer, Elmar ED - Krassmann, Dimitri ID - 25768 TI - Neuartige Fügetechnik für Organoblech-Hybridverbindungen ER - TY - GEN ED - Moritzer, Elmar ED - Budde, Christopher ED - Hüttner, Matthias ED - Krassmann, Dimitri ID - 25779 TI - Spritznieten als neue Organoblech-Metall-Hybridfügetechnik ER - TY - CHAP AU - Gokeler, Alli AU - Büchel, Daniel ID - 26016 T2 - Injury and Health Risk Management in Sports TI - Pre-seasonal Assessment and Performance Diagnostics: Orthopaedic and Functional Aspects ER - TY - CHAP AU - Sloane, Hannah AU - Kremer, H.-Hugo ED - Fuge, Juliane ED - Kremer, H.-Hugo ID - 26020 T2 - Mentoring in Hochschuldidaktik und -praxis - Eine Reflexion wissenschaftlicher Erkenntnisse und praktischer Erfahrungen TI - Peer Mentoring an der Fakultät für Wirtschaftswissenschaften - Konzept und Realisierungsformen ER - TY - JOUR AU - Santandrea, Matteo AU - Stefszky, Michael AU - Roeland, Ganaël AU - Silberhorn, Christine ID - 26223 JF - Optics Express SN - 1094-4087 TI - Interferometric method for determining the losses of spatially multi-mode nonlinear waveguides based on second harmonic generation ER - TY - JOUR AU - Smirne, A AU - Nitsche, T AU - Egloff, D AU - Barkhofen, Sonja AU - De, S AU - Dhand, I AU - Silberhorn, Christine AU - Huelga, S F AU - Plenio, M B ID - 26507 JF - Quantum Science and Technology SN - 2058-9565 TI - Experimental control of the degree of non-classicality via quantum coherence ER - TY - JOUR AU - Gappa, Monika AU - Filipiak‐Pittroff, Birgit AU - Libuda, Lars AU - Berg, Andrea AU - Koletzko, Sibylle AU - Bauer, Carl‐Peter AU - Heinrich, Joachim AU - Schikowski, Tamara AU - Berdel, Dietrich AU - Standl, Marie ID - 26526 JF - Allergy SN - 0105-4538 TI - Long‐term effects of hydrolyzed formulae on atopic diseases in the GINI study ER - TY - JOUR AB - Abstract Background While observational studies revealed an inverse association between serum 25(OH)vitamin D (25(OH)D) and the risk of attention deficit/hyperactivity disorder (ADHD), the causality of this relationship remains unclear. Methods We conducted a bidirectional two-sample Mendelian Randomization (MR) study to examine whether 25(OH)D has an effect on the risk to develop ADHD or vice versa. Information on single nucleotide polymorphisms (SNP) associated with serum 25(OH)D was obtained from a genome-wide association study (GWAS) considering phenotype data from 79,366 individuals of European ancestry. Data on risk for ADHD were derived from a GWAS analysis with 20,183 individuals diagnosed with ADHD and 35,191 controls. For our analysis, we considered effect sizes based on the European participants (19,099 cases and 34,194 controls). Results Single SNP analyses showed a causal effect of vitamin D on ADHD risk for only one SNP (rs12785878, p = 0.024). The overall MR estimates did not reveal a causal effect of 25(OH)D on risk for ADHD. In the reverse analysis, neither any single nor the multi-SNP MR analyses showed a causal effect of ADHD on 25(OH)D. Conclusion Results from this two-sample MR study did not confirm a causal effect of 25(OH)D on ADHD or vice versa. Accordingly, our study does not provide evidence that improving 25(OH)D via supplementation could reduce the risk of developing ADHD. AU - Libuda, Lars AU - Naaresh, Roaa AU - Ludwig, Christine AU - Laabs, Björn-Hergen AU - Antel, Jochen AU - Föcker, Manuel AU - Hebebrand, Johannes AU - Hinney, Anke AU - Peters, Triinu ID - 26527 JF - European Journal of Nutrition SN - 1436-6207 TI - A mendelian randomization study on causal effects of 25(OH)vitamin D levels on attention deficit/hyperactivity disorder ER - TY - JOUR AB - Abstract Purpose The influences of nutrition in childhood on puberty onset could have sustained consequences for health and wellbeing later in life. The aim of this study was to investigate the prospective association of diet quality prior to puberty with the timing of puberty onset. Methods We considered data from 3983 SCCNG (Southwest China Childhood Nutrition and Growth) study participants with dietary data, anthropometric measurement, and information on potential confounders at their baseline assessment (mean age: 7.1 years for girls and 7.3 years for boys; mean length of follow-up was 4.2 years). Cox proportional hazard regression estimating hazard ratios (HRs) and 95% confidence intervals (CIs) were used to examine the relationship between diet quality and puberty onset. Dietary intake at baseline was assessed using a validated food frequency questionnaire. Diet quality was determined using the Chinese Children Dietary Index (CCDI) which measures adherence to current dietary recommendations (theoretical range: 0–160 points). Age at Tanner stage 2 for breast/genital development (B2/G2), menarche or voice break (M/VB) were used as pubertal markers. Results The CCDI score ranged from 56.2 to 136.3 for girls and 46.1–131.5 for boys. Pubertal markers consistently indicate that girls and boys with higher diet quality were more likely to enter their puberty later than their counterparts with lower CCDI scores (higher vs. lower CCDI tertiles: adjusted HR for age at B2: 0.85 (95% CI, 0.81–0.94), p for trend = 0.02; G2: 0.86 (95% CI,0.80–0.96), p for trend = 0.02; M: 0.86 (95% CI,0.80–0.95), p for trend = 0.02; VB: 0.86 (95% CI,0.79–0.98), p for trend = 0.03), after adjustment for paternal education level, baseline energy intake, and pre-pubertal body fat. Conclusions Our data suggested a later puberty onset and later timing of progressed puberty stages in children with a high diet quality, which were independent of pre-pubertal body fat. AU - Duan, Ruonan AU - Qiao, Tian AU - Chen, Yue AU - Chen, Mengxue AU - Xue, Hongmei AU - Zhou, Xue AU - Yang, Mingzhe AU - Liu, Yan AU - Zhao, Li AU - Libuda, Lars AU - Cheng, Guo ID - 26529 JF - European Journal of Nutrition SN - 1436-6207 TI - The overall diet quality in childhood is prospectively associated with the timing of puberty ER - TY - CHAP AU - Franzen, Katja AU - Görel, Gamze AU - Hellmich, Frank AU - Filipiak, Agnes AU - Albers, Timm ED - Grosche, Michael ED - Decristan, Jasmin ED - Urton, Karolina ED - Jansen, Nina C. ED - Bruns, Gunnar ED - Ehl , Birgit ID - 26638 T2 - Sonderpädagogik und Bildungsforschung – Fremde Schwestern? TI - Qualifizierung von Studierenden des Grund- und Förderschullehramts für den inklusiven Unterricht in der Grundschule ER - TY - DATA AU - Hassani, Sepideh AU - Aroni, Katerina AU - Schwab, Susanne AU - Resch, Katharina AU - Toulia, Anastasia AU - Alves, Silvia AU - Görel, Gamze AU - Löper, Marwin Felix AU - Avramidis, Elias AU - Silveira- Maia, Mónica AU - Sanches-Ferreira, Manuela AU - Hellmich, Frank ID - 26639 TI - School-based interventions to support student participation. A comparison of different programs. Results from the FRIEND-SHIP project ER - TY - CHAP AU - Hoya, Fabian Karl AU - Schulze, Jan Roland AU - Hellmich, Frank ED - Grosche, Michael ED - Decristan, Jasmin ED - Urton, Karolina ED - Jansen, Nina C. ED - Bruns, Gunnar ED - Ehl, Birgit ID - 26665 T2 - Sonderpädagogik und Bildungsforschung – Fremde Schwestern? TI - Unterschiede in den Einstellungen zur Teamarbeit im inklusiven Unterricht zwischen Studierenden des Grund- und Förderschullehramts ER - TY - CHAP AU - Harteis, Christian AU - Billett, Stephen AU - Gruber, Hans ED - Neuweg, Georg ED - Hermkes, Rico ED - Bonowski, Tim ID - 26681 SN - 9783763960071 T2 - Implizites Wissen. Berufs- und wirtschaftspädagogische Annäherungen TI - Expertiseentwicklung: Umwandlung von Wissen in Können ER - TY - BOOK AU - Löper, Marwin Felix ID - 26696 TI - Einstellungen von Kindern gegenüber Peers mit Förderbedarf: Die Rolle persönlicher Ressourcen für die soziale Partizipation. ER - TY - CHAP AU - Löper, Marwin Felix AU - Hellmich, Frank ED - Grosche , Michael ED - Decristan, Jasmin ED - Urton, Karolina ED - Jansen, Nina C. ED - Bruns, Gunnar ED - Ehl, Birgit ID - 26703 T2 - Sonderpädagogik und Bildungsforschung – Fremde Schwestern? TI - Determinanten für die Einstellungen von Grundschulkindern gegenüber Peers mit einem sonderpädagogischen Förderbedarf in der emotionalen und sozialen Entwicklung ER - TY - BOOK AU - Klünder, Nina ID - 26872 TI - Die Ernährungsversorgung in Familien zwischen Zeit, Alltag und Haushaltsführung. Eine Mixed-Methods-Untersuchung ER - TY - GEN AU - Müller, Heinz AU - Klünder, Nina ID - 26886 TI - Der Jugendamts-Monitor. Aufgaben – Trends – Daten ER - TY - CONF AU - Guetttatfi, Zakarya AU - Kaufmann, Paul AU - Platzner, Marco ID - 3583 T2 - Proceedings of the International Workshop on Applied Reconfigurable Computing (ARC) TI - Optimal and Greedy Heuristic Approaches for Scheduling and Mapping of Hardware Tasks to Reconfigurable Computing Devices ER - TY - CONF AU - Wachsmuth, Henning AU - Werner, Till ID - 3800 T2 - Proceedings of COLING 2020, the 28th International Conference on Computational Linguistics TI - Intrinsic Quality Assessment of Arguments ER - TY - CONF AU - El Baff, Roxanne AU - Wachsmuth, Henning AU - Al-Khatib, Khalid AU - Stein, Benno ED - Tsujii, Junichi ED - Hajic, Jan ID - 3878 T2 - Proceedings of 58th Annual Meeting of the Association for Computational Linguistics TI - Analyzing the Persuasive Effect of Style in News Editorial Argumentation ER - TY - CHAP AU - Fugmann, Martin AU - Eickelmann, Birgit AU - Neubauer, Daniel ED - Teichert, Jörg ED - Ratajczak, Britta ID - 28831 T2 - Digitalisierung – Neue Aufgaben der Schulleitung TI - Schule zeitgemäß leiten – Perspektiven für die Schulleitungsqualifizierung in einer digitalisierten Welt ER - TY - BOOK AU - Eickelmann, Birgit ID - 28836 TI - Lehrkräfte in der digitalisierten Welt. Orientierungsrahmen für die Lehrerausbildung und Lehrerfortbildung in NRW ER - TY - JOUR AU - Eickelmann, Birgit AU - Labusch, Amelie ID - 28837 JF - Friedrich Jahresheft 2020 #schuleDIGITAL TI - Die Perspektive der Schülerinnen und Schüler auf ihre digitale Zukunft. Ergebnisse der Studie ICILS 2018 VL - 38 ER - TY - JOUR AU - Eickelmann, Birgit ID - 28838 JF - Friedrich Jahresheft #schuleDIGITAL TI - Zukunftsfähige Schulentwicklung in der digitalisierten Welt. Qualität und Nachhaltigkeit als Erfolgsfaktoren VL - 38 ER - TY - GEN ED - Aufenanger, Stefan ED - Eickelmann, Birgit ED - Feindt, Andreas ED - Kamin, Anna-Maria ID - 28839 T2 - Friedrich Jahresheft #schuleDIGITAL TI - Digitale Bildung VL - 38 ER -