@proceedings{24103, editor = {{Azarmi, Fardad }}, isbn = {{9781510888005}}, location = {{Yokohama}}, publisher = {{ASM International}}, title = {{{Adhesion of HVOF sprayed WC-Co coatings on additively processed 316L}}}, year = {{2019}}, } @article{24122, author = {{Inguva, Venkatesh and Graceffa, Rita and Schulz, Joachim and Bilsel, Osman and Perot, Blair J.}}, issn = {{1738-494X}}, journal = {{Journal of Mechanical Science and Technology}}, pages = {{4281--4289}}, title = {{{Creating round focused micro-jets from rectangular nozzles}}}, doi = {{10.1007/s12206-019-0824-x}}, year = {{2019}}, } @inproceedings{24141, author = {{König, Jonas and Malberg, Simon and Martens, Martin and Niehaus, Sebastian and Krohn-Grimberghe, Artus and Ramaswamy, Arunselvan}}, booktitle = {{Science and Information Conference}}, pages = {{178--191}}, title = {{{Multi-stage reinforcement learning for object detection}}}, year = {{2019}}, } @article{24272, author = {{Knoke, Torben and Kronberg, Alexander and Glushenkov, Maxim and Kenig, Eugeny}}, issn = {{1359-4311}}, journal = {{Applied Thermal Engineering}}, number = {{5}}, pages = {{114382}}, title = {{{On the design of heat exchanger equipment for novel-type isobaric expansion engines}}}, doi = {{10.1016/j.applthermaleng.2019.114382}}, volume = {{167}}, year = {{2019}}, } @inproceedings{24319, author = {{Malatyali, Hatice and Schöppner, Volker}}, booktitle = {{27. Fachtagung Technomer}}, title = {{{Untersuchung des Dosierverhaltens von Carbonfaserrezyklaten für den Einsatz im gleichläufigen Doppel-schneckenextruder}}}, year = {{2019}}, } @inproceedings{24322, author = {{Malatyali, Hatice and Schöppner, Volker and Tillmann, Wolfgang and Kokalj, David}}, booktitle = {{SPE ANTEC}}, title = {{{Deveploment of thin film sensors: The influence of layer variation on the measurement quality for inline melt temperature measurements}}}, year = {{2019}}, } @inproceedings{24326, author = {{Vogtschmidt, Sascha and Schöppner, Volker}}, location = {{Bratislava}}, title = {{{Vibration welding of components with angled areas in the direction of vibration}}}, year = {{2019}}, } @inproceedings{24502, abstract = {{Liquid atomization is expected to be a key process in Flame Spray Pyrolysis, as it determines the primary droplet size and velocity distribution, which represent initial conditions for flame shape and temperature field. A well-defined manipulation of atomization may be achieved by variation of nozzle geometry, injection parameter or fluid properties. However, change of fluid properties, e.g. varying solvents or increasing the precursor concentration, also influences the final particle properties. In this work, the influence of precursor concentration on fluid properties, spray and particle formation in Flame Spray Pyrolysis is experimentally investigated. High-speed shadowgraphy and Phase-Doppler measurements are conducted in a semi-closed combustion chamber with a well-defined burner geometry (SpraySyn burner) that is based on a coaxial atomization principle. By adding precursor to the flammable solvent, resulting spray characteristics, flame shape and appearance are changed in color, shape and mean droplet size distribution. Compared to resulting mean droplet sizes of pure solvent mixtures (D32, 22 μm), mean droplet sizes in the center of the precursor flame at 30 mm above the burner are generally smaller (D32, 18 μm). Persisting high share of small droplets in the droplet size distribution are presented, that presumably origin from an accumulation of metal organic precursor at the droplet surface during combustion, that acts as a diffusive barrier for high volatility solvent and thus reduces droplet evaporation. Sufficiently high above the nozzle exit, increasing the precursor concentration does not affect the radial distribution of mean droplet sizes but leads to increased mean particle sizes. More precursor presumably leads to higher concentrations of prime particles in the flame, thus probability of particle collusion and agglomeration. High-speed imaging at nozzle exit revealed random fluctuations of initial jet diameter, paired with jet axis shifting around 1000 Hz. These superposed fluctuations determine the initial conditions for atomization, induce pulsations in the flame and thus initiate the entire chain of the particle synthesis process.}}, author = {{Bieber, M. and Tischendorf, R. and Reddemann, M. and Schmid, H.-J. and Kneer, R.}}, keywords = {{FSP, nanoparticle synthesis, in situ measurements}}, location = {{Paris}}, publisher = {{ILASS (European Conference on Liquid Atomization and Spray Systems)}}, title = {{{Influence of precursor concentration on spray and particle formation in flame spray pyrolysis}}}, year = {{2019}}, } @techreport{24628, author = {{Menge, Dennis and Walter, Rolf and Schmid, Hans-Joachim and Breuer, Ulf Paul}}, pages = {{77}}, title = {{{FVA-Nr. 813 I - Generative Verfahren zur Herstellung von Polymerbauteilen}}}, volume = {{1338}}, year = {{2019}}, } @article{24632, abstract = {{Prerequisite for an efficient cooling energy system is the knowledge and optimal combination of different operating conditions of individual compression and free cooling chillers. The performance of cooling systems depends on their part-load performance and their condensing temperature, which are often not continuously measured. Recorded energy data remain unused, and manufacturers’ data differ from the real performance. For this purpose, manufacturer and real data are combined and continuously adapted to form part-load chiller models. This study applied a predictive optimization algorithm to calculate the optimal operating conditions of multiple chillers. A sprinkler tank offers the opportunity to store cold-water for later utilization. This potential is used to show the load shifting potential of the cooling system by using a variable electricity price as an input variable to the optimization. The set points from the optimization have been continuously adjusted throughout a dynamic simulation. A case study of a plastic processing company evaluates different scenarios against the status quo. Applying an optimal chiller sequencing and charging strategy of a sprinkler tank leads to electrical energy savings of up to 43%. Purchasing electricity on the EPEX SPOT market leads to additional costs savings of up to 17%. The total energy savings highly depend on the weather conditions and the prediction horizon.}}, author = {{Peesel, Ron-Hendrik and Schlosser, Florian and Meschede, Henning and Dunkelberg, Heiko and Walmsley, Timothy}}, issn = {{1996-1073}}, journal = {{Energies}}, title = {{{Optimization of Cooling Utility System with Continuous Self-Learning Performance Models}}}, doi = {{10.3390/en12101926}}, year = {{2019}}, } @article{24633, author = {{Schlosser, Florian and Seevers, Jan-Peter and Peesel, Ron-Hendrik and Walmsley, Timothy Gordon}}, issn = {{0360-5442}}, journal = {{Energy}}, pages = {{395--406}}, title = {{{System efficient integration of standby control and heat pump storage systems in manufacturing processes}}}, doi = {{10.1016/j.energy.2019.05.113}}, year = {{2019}}, } @article{24634, abstract = {{For increased total site heat integration, the optimal sizing and robust operation of a heat recovery loop (HRL) are prerequisites for economic efficiency. However, sizing based on one representative time series, not considering the variability of process streams due to their discontinuous operation, often leads to oversizing. The sensitive evaluation of the performance of an HRL by Monte Carlo (MC) simulation requires sufficient historical data and performance models. Stochastic time series are generated by distribution functions of measured data. With these inputs, one can then model and reliably assess the benefits of installing a new HRL. A key element of the HRL is a stratified heat storage tank. Validation tests of a stratified tank (ST) showed sufficient accuracy with acceptable simulation time for the variable layer height (VLH) multi-node (MN) modelling approach. The results of the MC simulation of the HRL system show only minor yield losses in terms of heat recovery rate (HRR) for smaller tanks. In this way, costs due to oversizing equipment can be reduced by better understanding the energy-capital trade-off.}}, author = {{Schlosser, Florian and Peesel, Ron-Hendrik and Meschede, Henning and Philipp, Matthias and Walmsley, Timothy and Walmsley, Michael and Atkins, Martin}}, issn = {{1996-1073}}, journal = {{Energies}}, title = {{{Design of Robust Total Site Heat Recovery Loops via Monte Carlo Simulation}}}, doi = {{10.3390/en12050930}}, year = {{2019}}, } @inproceedings{24638, author = {{Schlosser, Florian and Arpagaus, Cordin and Walmsley, Timothy G.}}, booktitle = {{Chemical Engineering Transactions}}, location = {{Crete}}, pages = {{7--12}}, title = {{{Heat Pump Integration by Pinch Analysis for Industrial Applications: A Review}}}, doi = {{10.3303/CET1976002}}, volume = {{76}}, year = {{2019}}, } @inproceedings{24639, author = {{Seevers, Jan-Peter and Schlosser, Florian}}, booktitle = {{Chemical Engineering Transactions}}, location = {{Crete}}, pages = {{373--378}}, title = {{{Integration of Heat Pump Storage Systems in Manufacturing Systems via Data Farming and Monte Carlo Simulation}}}, doi = {{10.3303/CET1976063}}, volume = {{76}}, year = {{2019}}, } @inproceedings{24640, author = {{Selleneit, Volker and Stockl, Martin and Philipp, Matthias and Mast, Tanja and Schlosser, Florian}}, booktitle = {{Chemical Engineering Transactions}}, pages = {{973--978}}, title = {{{System Efficiency Rating of Industrial Utilities in Electricity Grids with a high share of Variable Renewable Energies}}}, doi = {{10.3303/CET1976163}}, volume = {{76}}, year = {{2019}}, } @inproceedings{25638, author = {{Moritzer, Elmar and Mühlhoff, Frederik Marvin and Nordmeyer, T. and Böhnke, Birte and Krampe, Erhard and Asad, Salman}}, booktitle = {{Eröffnung Plasma-Campus bei Plasmatreat GmbH}}, location = {{Steinhagen (Deutschland)}}, title = {{{InMould-Plasma}}}, year = {{2019}}, } @article{25639, author = {{Moritzer, Elmar and Jilg, J. and Sibbe, N.}}, journal = {{PU MAGAZIN - International}}, pages = {{320--324}}, title = {{{Investigation of the bond strength between injection moulded TPU and a reactive, castable polyurethane mass (PU)}}}, year = {{2019}}, } @article{25640, author = {{Moritzer, Elmar and Jilg, J. and Sibbe, N.}}, journal = {{TPE Magazine international}}, number = {{4}}, pages = {{230--234}}, title = {{{Investigation of the bond strength between injection moulded TPU and a reactive, castable polyurethane mass (PU)}}}, year = {{2019}}, } @inproceedings{25689, author = {{Moritzer, Elmar and Hüttner, Matthias and Krassmann, Dimitri and Wittke, Marius}}, booktitle = {{Werkstoffwoche}}, location = {{Dresden (Deutschland)}}, title = {{{Lebensdauer von Composites und Composite-Metall-Hybridverbindungen}}}, year = {{2019}}, } @book{25734, author = {{Tobias Jenert, Gabi Reinmann, Tobias Schmohl}}, isbn = {{ 978-3-658-20309-2 }}, keywords = {{Hochschulbildung, Bildungsforschung, Hochschuldidaktik, Hochschulbildung, Hochschuldidaktik, Forschung, Lehren, Hochschule, Lehre, Lernen}}, pages = {{ Online--Ressource }}, publisher = {{ Springer Fachmedien Wiesbaden }}, title = {{{ Hochschulbildungsforschung. Theoretische, methodologische und methodische Denkanstöße für die Hochschuldidaktik }}}, doi = {{ 10.1007/978-3-658-20309-2 }}, year = {{2019}}, } @article{25735, author = {{Brahm, T. and Jenert, T.}}, journal = {{Journal of Management Education}}, number = {{4}}, pages = {{446--453}}, title = {{{Untangling Faculty Misinformation From an Educational Perspective: Rejoinder to ?The Menace of Misinformation: Faculty Misstatements in Management Education and Their Consequences?}}}, volume = {{43}}, year = {{2019}}, } @inproceedings{25736, author = {{Schöppner, Volker and Bayazian, H. and Yadegari, Ali }}, booktitle = {{77th Annual Technical Conference of the Society of Plastics Engineers (ANTEC)}}, location = {{Detroit (USA)}}, title = {{{Morphology Development in LLDPE Stretch Films Prepared with Different Cast Film Process Parameters}}}, year = {{2019}}, } @inproceedings{25737, author = {{Schöppner, Volker and Sporkmann, F. and Heide, Alexander }}, booktitle = {{35th International Conference of the Polymer Processing Society (PPS)}}, location = {{Cesme (Türkei)}}, title = {{{New Analytical Approach to Calculate the Melt Flow within The Co-Rotating Twin Screw Extruder by Using the Performance Mapping Method}}}, year = {{2019}}, } @inproceedings{25738, author = {{Moritzer, Elmar and Budde, Christopher and Hüttner, Matthias and Krassmann, Dimitri}}, booktitle = {{9. Fügetechnisches Gemeinschaftskolloquium}}, location = {{Braunschweig (Deutschland)}}, title = {{{Nieten im Spritzgießprozess zur Verbindung von Hybridbauteilen aus Organoblechen und Metallen}}}, year = {{2019}}, } @inproceedings{25745, author = {{Moritzer, Elmar and Hirsch, André}}, booktitle = {{DGM-Seminar für Fortgeschrittene}}, location = {{Paderborn (Deutschland)}}, title = {{{Oberflächennachbearbeitung und Kleben von FDM-Bauteilen}}}, year = {{2019}}, } @inproceedings{25746, author = {{Schöppner, Volker and Bayazian, H. and Yadegari, Ali and Haddad, Hoda }}, booktitle = {{35th PPS}}, location = {{Cesme-Izmir (Türkei)}}, title = {{{Orientation in LLDPE Cast Films Manufactured under Different Processing Parameters}}}, year = {{2019}}, } @inproceedings{25747, author = {{Moritzer, Elmar and Westhues, T.}}, booktitle = {{35th PPS}}, location = {{Cesme-Izmir (Türkei)}}, title = {{{Plant Design, Stress-Strain Characteristics in Compression and Lifecycle Description of Coiled Filament Mats Based on Production According to Fitzer}}}, year = {{2019}}, } @article{25748, author = {{Moritzer, Elmar and Hirsch, André and Heim, H.-P. and Cherif, C. and Truemper, W.}}, issn = {{1878-6669}}, journal = {{Welding in the World}}, pages = {{867--873}}, title = {{{Plastic droplet welding: bond strength between plastic freeforming structures and continuous fiber-reinforced thermoplastic composites}}}, year = {{2019}}, } @inproceedings{25750, author = {{Schöppner, Volker and Sporkmann, F.}}, booktitle = {{VDI Wissensforum}}, location = {{Stuttgart (Deutschland)}}, title = {{{Scale up von Doppelschneckenmaschinen}}}, year = {{2019}}, } @book{25751, author = {{Schöppner, Volker and Meilwes, P. and Westhues, K.}}, isbn = {{978-3-939382-14-0 }}, title = {{{Schmelzefilter}}}, year = {{2019}}, } @article{25753, author = {{Schöppner, Volker and Sporkmann, F.}}, issn = {{2053-7174}}, journal = {{Compounding World}}, pages = {{47--56}}, title = {{{Simulation aids compounding success}}}, year = {{2019}}, } @article{25754, author = {{Schöppner, Volker and Brüning, Florian}}, issn = {{1618-8357}}, journal = {{WAK Jahresmagazin}}, pages = {{64--67}}, title = {{{Simulation der Feststoffförderung im Einschneckenextruder}}}, year = {{2019}}, } @inproceedings{25755, author = {{Moritzer, Elmar and Wittke, M.}}, booktitle = {{77th Annual Technical Conference of the Society of Plastics Engineers (ANTEC)}}, location = {{Detroit (USA)}}, title = {{{Simulation-based Optimization of Advanced Mixing Elements on Single Screw Extruders}}}, year = {{2019}}, } @inproceedings{25756, author = {{Moritzer, Elmar and Kartelmeyer, S. and Hüttemann, B. and Jaroschek, C.}}, booktitle = {{26. Fachtagung über Verarbeitung und Anwendung von Polymeren}}, location = {{Chemnitz (Deutschland)}}, title = {{{Spritzgießwerkzeuge mit Heatpipe-Temperierung}}}, year = {{2019}}, } @article{25757, author = {{Moritzer, Elmar and Jilg, J. and Sibbe, N.}}, journal = {{PU MAGAZIN}}, pages = {{220--224}}, title = {{{Untersuchung der Verbundhaftung zwischen spritzgegossenen TPUs und einer reaktiven, gießfähigen Polyurethanmasse}}}, year = {{2019}}, } @inproceedings{25759, author = {{Schöppner, Volker and Westhues, K.}}, booktitle = {{VDI Wissensforum}}, location = {{Stuttgart (Deutschland)}}, title = {{{Vortrag „Aufschmelzen“ Optimierter Betrieb und Scale-up von Doppelschnecken-Extrudern}}}, year = {{2019}}, } @inproceedings{25760, author = {{Moritzer, Elmar and Jilg, J.}}, booktitle = {{26. Fachtagung über Verarbeitung und Anwendung von Polymeren}}, isbn = {{978-3-939382-14-0}}, location = {{Chemnitz (Deutschland)}}, title = {{{Zur Wirkung dehnströmungsinduzierender Spritzgießdüsen für glasfaserverstärktes Polypropylen im Sonderverfahren der Spritzgießdirektcompoundierung (SGDC)}}}, year = {{2019}}, } @article{26015, author = {{Büchel, Daniel and Jakobsmeyer, Rasmus and Döring, Michael and Adams, Michael and Rückert, Ulrich and Baumeister, Jochen}}, issn = {{2474-8668}}, journal = {{International Journal of Performance Analysis in Sport}}, pages = {{832--844}}, title = {{{Effect of playing position and time on-court on activity profiles in german elite team handball}}}, doi = {{10.1080/24748668.2019.1663071}}, year = {{2019}}, } @inbook{26098, abstract = {{Since, in the presence of humidity the inter-particle processes are dominated by capillary forces, a fundamental understanding of the water adsorption and the capillary bridge formation is very important. However, the adsorbed water structure and thus the capillary bridge formation is influenced by various parameters like the particle morphology (e.g. particle size, roughness) as well as the surface chemistry (surface energy, adsorbate structure) and therefore needs to be analyzed on a submicroscopic or even molecular basis. A multi-scale approach ranging from experiments on an individual particle level (AFM and liquid bridge simulation) and investigations on small particle ensembles (combined QCM-D/FTIR) up to macroscopic description of bulk behavior is presented in this chapter. In this context, the combined in situ QCM-D/FTIR experiments are bridging the gap between experiments on an individual particle level and macroscopic bulk behavior. Variation of surface chemistry by means of adsorption of functional organic molecules allows for the correlation of macroscopic particle behavior to nanoscopic effects like the presence and structure of adsorbate layers as well as the formation of capillary bridges while keeping the disperse properties constant. Besides extensive experimental work, simulations of capillary bridges formed by condensation from humid air are presented. It is clearly shown that well known approximations which have been introduced for micron-sized particles are not valid any more for nano-scaled particles. The forces between nanoparticles by static liquid bridges and their dependency on particle size, contact angle, humidity and interparticle distance are discussed in detail. Furthermore, capillary forces during separation of particles are studied thoroughly and a constitutive law based on a contact stiffness allows the transfer to DEM simulations of wet powders. Finally, it is demonstrated by comparison to Molecular Dynamics simulations, that the used continuum approach to simulate capillary bridges might even be used down to particle sizes of a few nanometers, if some additional effects are considered correctly.}}, author = {{Schmid, Hans-Joachim and Grundmeier, Guido and Dörmann, Michael and Orive, Alejandro González and de los Arcos, Teresa and Torun, Boray}}, booktitle = {{Particles in Contact}}, title = {{{Understanding and Manipulation of Nanoparticle Contact Forces by Capillary Bridges}}}, doi = {{10.1007/978-3-030-15899-6_2}}, year = {{2019}}, } @article{26224, author = {{Santandrea, Matteo and Stefszky, Michael and Roeland, Ganaël and Silberhorn, Christine}}, issn = {{1367-2630}}, journal = {{New Journal of Physics}}, title = {{{Characterisation of fabrication inhomogeneities in Ti:LiNbO3 waveguides}}}, doi = {{10.1088/1367-2630/ab5cb5}}, year = {{2019}}, } @article{26225, author = {{Santandrea, Matteo and Stefszky, Michael and Silberhorn, Christine}}, issn = {{0146-9592}}, journal = {{Optics Letters}}, title = {{{General framework for the analysis of imperfections in nonlinear systems}}}, doi = {{10.1364/ol.44.005398}}, year = {{2019}}, } @article{26226, author = {{Santandrea, Matteo and Stefszky, Michael and Ansari, Vahid and Silberhorn, Christine}}, issn = {{1367-2630}}, journal = {{New Journal of Physics}}, title = {{{Fabrication limits of waveguides in nonlinear crystals and their impact on quantum optics applications}}}, doi = {{10.1088/1367-2630/aaff13}}, year = {{2019}}, } @article{26237, author = {{Luo, Kai-Hong and Ansari, Vahid and Massaro, Marcello and Santandrea, Matteo and Eigner, Christof and Ricken, Raimund and Herrmann, Harald and Silberhorn, Christine}}, issn = {{1094-4087}}, journal = {{Optics Express}}, title = {{{Counter-propagating photon pair generation in a nonlinear waveguide}}}, doi = {{10.1364/oe.378789}}, year = {{2019}}, } @article{26293, author = {{Sperling, Jan and Vogel, W}}, issn = {{0031-8949}}, journal = {{Physica Scripta}}, title = {{{Quasiprobability distributions for quantum-optical coherence and beyond}}}, doi = {{10.1088/1402-4896/ab5501}}, year = {{2019}}, } @article{26297, author = {{Cimini, Valeria and Gianani, Ilaria and Sbroscia, Marco and Sperling, Jan and Barbieri, Marco}}, issn = {{2643-1564}}, journal = {{Physical Review Research}}, title = {{{Measuring coherence of quantum measurements}}}, doi = {{10.1103/physrevresearch.1.033020}}, year = {{2019}}, } @article{26298, author = {{Rezai, Mohammad and Sperling, Jan and Gerhardt, Ilja}}, issn = {{2058-9565}}, journal = {{Quantum Science and Technology}}, title = {{{What can single photons do what lasers cannot do?}}}, doi = {{10.1088/2058-9565/ab3d56}}, year = {{2019}}, } @article{26299, author = {{Phillips, D. S. and Walschaers, M. and Renema, J. J. and Walmsley, I. A. and Treps, N. and Sperling, Jan}}, issn = {{2469-9926}}, journal = {{Physical Review A}}, title = {{{Benchmarking of Gaussian boson sampling using two-point correlators}}}, doi = {{10.1103/physreva.99.023836}}, year = {{2019}}, } @article{26500, author = {{Lorz, Lennart and Meyer-Scott, Evan and Nitsche, Thomas and Potoček, Václav and Gábris, Aurél and Barkhofen, Sonja and Jex, Igor and Silberhorn, Christine}}, issn = {{2643-1564}}, journal = {{Physical Review Research}}, title = {{{Photonic quantum walks with four-dimensional coins}}}, doi = {{10.1103/physrevresearch.1.033036}}, year = {{2019}}, } @article{26501, author = {{Kruse, Regina and Hamilton, Craig S. and Sansoni, Linda and Barkhofen, Sonja and Silberhorn, Christine and Jex, Igor}}, issn = {{2469-9926}}, journal = {{Physical Review A}}, title = {{{Detailed study of Gaussian boson sampling}}}, doi = {{10.1103/physreva.100.032326}}, year = {{2019}}, } @article{26508, author = {{Nitsche, Thomas and Geib, Tobias and Stahl, Christoph and Lorz, Lennart and Cedzich, Christopher and Barkhofen, Sonja and Werner, Reinhard F and Silberhorn, Christine}}, issn = {{1367-2630}}, journal = {{New Journal of Physics}}, title = {{{Eigenvalue measurement of topologically protected edge states in split-step quantum walks}}}, doi = {{10.1088/1367-2630/ab12fa}}, year = {{2019}}, }