@inbook{44502,
  abstract     = {{In order to follow the 1.5 degree path of the Paris Climate Agreement, drastic greenhouse gas reduction measures are needed in the transport sector. The potential of public transport and new mobility services to reduce transport-related greenhouse gas emissions cannot yet be fully exploited, especially in rural regions. This paper presents the concept of an innovative mobility system, called NeMo.bil, that intends to fill the gap between individual and public transport to create a demand-oriented and sustainable mobility offer. The concept is based on convoy formation of autonomously driving lightweight vehicles serving the first and last mile and a larger towing vehicle carrying enough power and energy to move the convoy over longer distances at higher speeds. This combination of two different vehicles, intelligently controlled by a digital ecosystem, aims to significantly increasing energy, resource and cost efficiency. Based on an analysis of previous approaches for innovative mobility solutions, the concept is derived from a technical and sociological perspective and its potential for reducing energy demand is calculated.}},
  author       = {{Ostermann, Moritz and Behm, Jonathan and Marten, Thorsten and Tröster, Thomas and Weyer, Johannes and Cepera, Kay and Adelt, Fabian}},
  booktitle    = {{Towards the New Normal in Mobility}},
  editor       = {{Proff, Heike}},
  isbn         = {{9783658394370}},
  location     = {{Duisburg}},
  publisher    = {{Springer Fachmedien Wiesbaden}},
  title        = {{{Individualization of Public Transport – Integration of Technical and Social Dimensions of Sustainable Mobility}}},
  doi          = {{10.1007/978-3-658-39438-7_25}},
  year         = {{2023}},
}

@inproceedings{36839,
  author       = {{Neumann, Stefan and Meschut, Gerson and Otroshi, Mortaza and Kneuper, Florian and Schulze, Andre and Tekkaya, Erman}},
  title        = {{{Mechanically Joined Extrusion Profiles for Battery Trays}}},
  year         = {{2023}},
}

@article{42636,
  abstract     = {{<jats:p> Laser additive manufacturing processes are used for the production of highly complex geometric structures due to their high geometric freedom. Additive manufacturing processes, in particular powder-based selective laser melting, are used to produce metallic additive manufactured components for the automotive and aerospace industries. Different materials are often joined together to realize sustainable lightweight construction. The production of such mixed construction joints is often realized using mechanical joining technology (e.g. self-piercing riveting). However, there is currently very little experience with the mechanical joining of metallic additive manufacturing components. Furthermore, there is insufficient knowledge about the effects that occur during the mechanical joining of additive manufacturing components. In this article, a method is presented to investigate the joinability of additively manufactured components with conventionally manufactured components using a numerical simulation of the self-piercing riveting process. For this purpose, the additive manufacturing materials are characterized experimentally, the simulation model is configured, and the joining process with additive manufacturing materials is represented in the numerical simulation. Furthermore, the influence of the building direction on the mechanical properties is shown using miniature tensile specimens. Besides the configuration of the simulation model, the influence of heat treatment on the self-piercing riveting process is presented. </jats:p>}},
  author       = {{Heyser, Per and Petker, Rudolf and Meschut, Gerson}},
  issn         = {{1464-4207}},
  journal      = {{Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications}},
  keywords     = {{Mechanical Engineering, General Materials Science}},
  publisher    = {{SAGE Publications}},
  title        = {{{Development of a numerical simulation model for self-piercing riveting of additive manufactured AlSi10Mg}}},
  doi          = {{10.1177/14644207231158213}},
  year         = {{2023}},
}

@article{42872,
  author       = {{Göddecke, Johannes and Meschut, Gerson and Damm, Jannis and Albiez, Matthias and Ummenhofer, Thomas and Kötz, Fabian and Matzenmiller, Anton}},
  issn         = {{0021-8464}},
  journal      = {{The Journal of Adhesion}},
  pages        = {{1--31}},
  publisher    = {{Informa UK Limited}},
  title        = {{{Experimental and numerical investigation of the damping properties of adhesively bonded tubular steel joints}}},
  doi          = {{10.1080/00218464.2023.2178909}},
  year         = {{2023}},
}

@inproceedings{31849,
  author       = {{Hoffmann, Max and Biehler, Rolf}},
  booktitle    = {{Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)}},
  editor       = {{Trigueros, Marı́a and Barquero, Berta and Hochmuth, Reinhard and Peters, Jana}},
  keywords     = {{Teaching and learning of specific topics in university mathematics, Transition to, across and from university mathematics, Student Teachers, Geometry, Congruence, Double Discontinuity.}},
  publisher    = {{University of Hannover and INDRUM.}},
  title        = {{{Student Teachers ’ Knowledge of Congruence before a University Course on Geometry}}},
  year         = {{2023}},
}

@inproceedings{43097,
  author       = {{Florensa, Ignasio and Hoffmann, Max and Romo Vázquez, Avenilde and Zandieh, Michelle and Martínez-Planell, Rafael}},
  booktitle    = {{Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)}},
  editor       = {{Trigueros, Marı́a and Barquero, Berta and Hochmuth, Reinhard and Peters, Jana}},
  title        = {{{Innovations in university teaching based on mathematic education research}}},
  year         = {{2023}},
}

@article{43421,
  abstract     = {{The achievement of a flat metasurface has realized extraordinary control over light–matter interaction at the nanoscale, enabling widespread use in imaging, holography, and biophotonics. However, three-dimensional metasurfaces with the potential to provide additional light–matter manipulation flexibility attract only little interest. Here, we demonstrate a three-dimensional metasurface scheme capable of providing dual phase control through out-of-plane plasmonic resonance of L-shape antennas. Under circularly polarized excitation at a specific wavelength, the L-shape antennas with rotating orientation angle act as spatially variant three-dimensional tilted dipoles and are able to generate desire phase delay for different polarization components. Generalized Snell's law is achieved for both in-plane and out-of-plane dipole components through arranging such L-shape antennas into arrays. These three-dimensional metasurfaces suggest a route for wavefront modulation and a variety of nanophotonic applications.}},
  author       = {{Li, Tianyou and Chen, Yanjie and Wang, Yongtian and Zentgraf, Thomas and Huang, Lingling}},
  issn         = {{0003-6951}},
  journal      = {{Applied Physics Letters}},
  keywords     = {{Physics and Astronomy (miscellaneous)}},
  number       = {{14}},
  publisher    = {{AIP Publishing}},
  title        = {{{Three-dimensional dipole momentum analog based on L-shape metasurface}}},
  doi          = {{10.1063/5.0142389}},
  volume       = {{122}},
  year         = {{2023}},
}

@article{43464,
  abstract     = {{<jats:p>Lightweight design is a common approach to reduce energy demand in the use stage of vehicles. The production of lightweight materials is usually associated with an increase in energy demand, so the environmental impacts of lightweight structures need to be assessed holistically using a life cycle assessment. To estimate the life cycle environmental impacts of a product in its developmental stage, for example, by life cycle engineering, future changes in relevant influencing factors must be considered. Prospective life cycle assessment provides methods for integrating future scenarios into life cycle assessment studies. However, approaches for integrating prospective life cycle assessment into product development are limited. The objective of this work is to provide the methodological foundation for integrating future scenarios of relevant influencing factors in the development of lightweight structures. The applicability of the novel methodology is demonstrated by a case study of a structural component in a steel, aluminium, and hybrid design. The results show that appropriate decarbonisation measures can reduce the life cycle greenhouse gas emissions by up to 95 percent until 2050. We also found that shifts in the environmentally optimal design are possible in future scenarios. Therefore, the methodology and data provided contribute to improved decision-making in product development.</jats:p>}},
  author       = {{Ostermann, Moritz and Grenz, Julian and Triebus, Marcel and Cerdas, Felipe and Marten, Thorsten and Tröster, Thomas and Herrmann, Christoph}},
  issn         = {{1996-1073}},
  journal      = {{Energies}},
  keywords     = {{Life Cycle Engineering, Life Cycle Assessment, Lightweight Design, Prospective LCA, Future-oriented LCA, Energy System, Material production, Sustainable production}},
  number       = {{8}},
  publisher    = {{MDPI AG}},
  title        = {{{Integrating Prospective Scenarios in Life Cycle Engineering: Case Study of Lightweight Structures}}},
  doi          = {{10.3390/en16083371}},
  volume       = {{16}},
  year         = {{2023}},
}

@inproceedings{44036,
  abstract     = {{<jats:p>Abstract. In order to reduce global energy consumption in production and industry along with the associated CO2 emissions, existing resources must be used more efficiently. This includes the energy-efficient and comprehensive recycling of a wide range of metals. Especially for the production of aluminium, there is a large potential for saving energy using efficient recycling processes. With regard to the recycling of aluminium studies have shown that solid-state recycling processes are significantly more efficient considering the used energy and resources compared to the conventional, smelting-metallurgical recycling process. In this paper, the direct and energy-efficient friction-induced recycling process (FIRP) based on the conform process is further described and analysed in terms of the temperature-property relationships. For this purpose, the influence of the processing temperature on the microstructure and properties of the recycled semi-finished products is investigated using the toll system that enables an ECAP forming. Specific sections of the (in theory) infinite, recycled semi-finished product are taken and analysed at different process temperatures of the solid state recycling process. Based on these sections, the properties in terms of mechanical hardness, strength, ductility and grain size are analysed and a degressive relationship between process temperature and mechanical hardness up to a temperature of 270 °C can be shown. Applying the Hall-Petch relationship, it is analysed whether there is a correlation between the strength and the microstructure in the form of the grain size. </jats:p>}},
  author       = {{Borgert, Thomas and Homberg, Werner}},
  booktitle    = {{Materials Research Proceedings}},
  issn         = {{2474-395X}},
  keywords     = {{Recycling, Aluminium, Friction-Induced, Energy Efficiency}},
  location     = {{Kraków}},
  publisher    = {{Materials Research Forum LLC}},
  title        = {{{Analysis of temperature effect on strength and microstructure in friction induced recycling process (FIRP)}}},
  doi          = {{10.21741/9781644902479-211}},
  year         = {{2023}},
}

@article{42252,
  abstract     = {{Die Wirtschaftlichkeit von Wärmemotoren wird maßgeblich durch die Rückführung von Wärme in Rekuperatoren beeinflusst. Beim isobaren Expansionsmotor vom Bush-Typ, einem Wärmemotor, welcher bereits mit Wärmequellen ab 60°C betrieben werden kann, steigt der thermische Wirkungsgrad durch den Einsatz von Rekuperatoren signifikant. Gleichzeitig wirken sich das Fluidvolumen des Wärmeübertragers sowie der beim Betrieb auftretende Druckverlust negativ auf den thermischen Wirkungsrad aus. In dieser Arbeit wird der Zusammenhang von Totvolumen, Druckverlust und Wärmerückgewinnung untersucht und Empfehlungen für den Betrieb von Rekuperatoren am isobaren Expansionsmotor gegeben.}},
  author       = {{Mügge, Nils and Kronberg, Alexander and Glushenkov, Maxim and Kenig, Eugeny Y.}},
  journal      = {{Chemie Ingenieur Technik}},
  keywords     = {{Isobarer Expansionsmotor, Dynamische Wärmeübertragungsmodellierung, Phasenwechsel, dichte Arbeitsmedien}},
  number       = {{5}},
  publisher    = {{Wiley}},
  title        = {{{Untersuchung überlagerter Effekte von Druckverlust und Totvolumen durch Rekuperation am isobaren Expansionsmotor}}},
  doi          = {{10.1002/cite.202200243}},
  volume       = {{95}},
  year         = {{2023}},
}

@article{43130,
  author       = {{Schmolke, Tobias and Teutenberg, Dominik and Meschut, Gerson}},
  journal      = {{The Journal of Adhesion}},
  publisher    = {{Taylor & Francis}},
  title        = {{{Investigation of the leak tightness of structural adhesive joints for use in battery housings considering mechanical and corrosive loads}}},
  doi          = {{10.1080/00218464.2023.2195556}},
  year         = {{2023}},
}

@article{36983,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>The use of structured measuring systems to prevent wall slip is a common approach to obtain absolute rheological values. Typically, only the minimum distance between the measuring surfaces is used for further calculation, implying that no flow occurs between the structural elements. But this assumption is misleading, and a gap correction is necessary. To determine the radius correction <jats:inline-formula><jats:alternatives><jats:tex-math>$$\Delta r$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML">
                <mml:mrow>
                  <mml:mi>Δ</mml:mi>
                  <mml:mi>r</mml:mi>
                </mml:mrow>
              </mml:math></jats:alternatives></jats:inline-formula> for specific geometries, we conducted investigations on three Newtonian fluids (two silicon oils and one suspension considered to be Newtonian in the relevant shear rate range). The results show that <jats:inline-formula><jats:alternatives><jats:tex-math>$$\Delta r$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML">
                <mml:mrow>
                  <mml:mi>Δ</mml:mi>
                  <mml:mi>r</mml:mi>
                </mml:mrow>
              </mml:math></jats:alternatives></jats:inline-formula> is not only shear- and material-independent, but geometry-dependent, providing a Newtonian flow behaviour in a similar viscosity range. Therefore, a correction value can be determined with only minute deviations in different Newtonian fluids. As the conducted laboratory measurements are very time-consuming and expensive, a CFD-approach with only very small deviations was additionally developed and compared for validation purposes. Therefore, simulation is an effective and resource-efficient alternative to the presented laboratory measurements to determine <jats:inline-formula><jats:alternatives><jats:tex-math>$$\Delta r$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML">
                <mml:mrow>
                  <mml:mi>Δ</mml:mi>
                  <mml:mi>r</mml:mi>
                </mml:mrow>
              </mml:math></jats:alternatives></jats:inline-formula> for the correction of structured coaxial geometries even for non-Newtonian fluids in the future.</jats:p>}},
  author       = {{Josch, Sebastian and Jesinghausen, Steffen and Dechert, Christopher and Schmid, Hans-Joachim}},
  issn         = {{0035-4511}},
  journal      = {{Rheologica Acta}},
  keywords     = {{rheology, rheometry, suspension, coaxial, correction}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Experimental and simulative determination and correction of the effective gap extension in structured coaxial measuring systems}}},
  doi          = {{10.1007/s00397-023-01383-2}},
  year         = {{2023}},
}

@article{44092,
  abstract     = {{We study how competition between physicians affects the provision of medical care. In
our theoretical model, physicians are faced with a heterogeneous patient population, in which patients
systematically vary with regard to both their responsiveness to the provided quality of care and their
state of health. We test the behavioral predictions derived from this model in a controlled laboratory
experiment. In line with the model, we observe that competition significantly improves patient benefits
as long as patients are able to respond to the quality provided. For those patients, who are not able
to choose a physician, competition even decreases the patient benefit compared to a situation without
competition. This decrease is in contrast to our theoretical prediction implying no change in benefits for
passive patients. Deviations from patient-optimal treatment are highest for passive patients in need of
a low quantity of medical services. With repetition, both, the positive effects of competition for active
patients as well as the negative effects of competition for passive patients become more pronounced. Our
results imply that competition can not only improve but also worsen patient outcome and that patients’
responsiveness to quality is decisive.}},
  author       = {{Brosig-Koch, Jeannette and Hehenkamp, Burkhard and Kokot, Johanna}},
  journal      = {{Health Economics}},
  keywords     = {{physician competition, patient characteristics, heterogeneity in quality responses, fee-for-service, laboratory experiment}},
  title        = {{{Who benefits from quality competition in health care? A theory and a laboratory experiment on the relevance of patient characteristics}}},
  doi          = {{10.1002/hec.4689}},
  year         = {{2023}},
}

@article{44097,
  abstract     = {{We present strong enhancement of third harmonic generation in an amorphous silicon metasurface consisting of elliptical nano resonators. We show that this enhancement originates from a new type of multi-mode Fano mechanism. These ‘Super-Fano’ resonances are investigated numerically in great detail using full-wave simulations. The theoretically predicted behavior of the metasurface is experimentally verified by linear and nonlinear transmission spectroscopy. Moreover, quantitative nonlinear measurements are performed, in which an absolute conversion efficiency as high as ηmax ≈ 2.8 × 10−7 a peak power intensity of 1.2 GW cm−2 is found. Compared to an unpatterned silicon film of the same thickness amplification factors of up to ~900 are demonstrated. Our results pave the way to exploiting a strong Fano-type multi-mode coupling in metasurfaces for high THG in potential applications.}},
  author       = {{Hähnel, David and Golla, Christian and Albert, Maximilian and Zentgraf, Thomas and Myroshnychenko, Viktor and Förstner, Jens and Meier, Cedrik}},
  issn         = {{2047-7538}},
  journal      = {{Light: Science & Applications}},
  keywords     = {{tet_topic_meta}},
  number       = {{1}},
  pages        = {{97}},
  publisher    = {{Springer Nature}},
  title        = {{{A multi-mode super-fano mechanism for enhanced third harmonic generation in silicon metasurfaces}}},
  doi          = {{https://doi.org/10.1038/s41377-023-01134-1}},
  volume       = {{12}},
  year         = {{2023}},
}

@article{42515,
  abstract     = {{<jats:p> Microcellular wood fiber reinforced polymers offer the possibility to reduce the use of fossil raw materials. In particular, thick-walled structures with thicknesses greater than 6 mm offer a high potential for weight savings. This study investigates the cell structures and mechanical properties of injection-molded test specimens. The influence of different thicknesses (6–10 mm) along with different chemical blowing agents (endothermic, exothermic) with varying dosages (0–2 wt%) is analyzed. The investigations reveal that exothermic chemical blowing agents form finer cells consistently to thin-walled structures than endothermic ones. Higher foaming agent content leads to higher pore fractions, with many small cells coalescing into a large open-pore cell network. The mechanical properties depend mainly on the pore content of the sample. The specific tensile properties deteriorate with the use of chemical blowing agents (CFA), whereas the sandwich structure produced with compact edge layers has a positive influence on the specific flexural properties. </jats:p>}},
  author       = {{Moritzer, Elmar and Flachmann, Felix}},
  issn         = {{0021-955X}},
  journal      = {{Journal of Cellular Plastics}},
  keywords     = {{Materials Chemistry, Polymers and Plastics, General Chemistry}},
  number       = {{3}},
  pages        = {{187--199}},
  publisher    = {{SAGE Publications}},
  title        = {{{Morphological and mechanical properties of foamed thick-walled Wood-Plastic-Composite structures}}},
  doi          = {{10.1177/0021955x231161175}},
  volume       = {{59}},
  year         = {{2023}},
}

@inproceedings{44035,
  abstract     = {{<jats:p>Abstract. Friction-spinning as an innovative incremental forming process enables large degrees of deformation in tube and sheet metal-forming due to a self-induced heat generation in the forming zone. This paper presents new process designs for energy and resource-efficient forming of gas cylinders by friction-spinning without the use of an external heat supply. The self-generated heat enables friction-spinning process to reduce the energy demand in the manufacture of gas cylinders, which are usually manufactured with external heat (mostly fossil fuels), by 95 %. Typical gas cylinder contours, such as flattened and spherical bottom ends and cylinder necks, are manufactured by friction-spinning of AW 6060 tubular profiles with specifically designed tool path strategies. It is shown that friction-spinning enables the manufacture of typical gas cylinder contours with sufficient wall thickness and the required gas tightness without the input of external heat. Thus, this process can contribute to an increase in the energy and resource efficiency of forming processes. </jats:p>}},
  author       = {{Dahms, Frederik and Homberg, Werner}},
  booktitle    = {{Materials Research Proceedings}},
  issn         = {{2474-395X}},
  location     = {{Krakau}},
  publisher    = {{Materials Research Forum LLC}},
  title        = {{{Energy and Resource-efficient Forming of Gas Cylinders by Friction-Spinning}}},
  doi          = {{10.21741/9781644902479-208}},
  year         = {{2023}},
}

@article{43391,
  abstract     = {{The technical importance of paraffins as phase change materials (PCM) in heat storage systems increases. Knowledge on the thermal conductivity of paraffins is necessary for the design and optimization of heat storage systems. However, for most paraffins solely the thermal conductivity of the liquid state has been sufficiently investigated. For the solid state, precise thermal conductivity data are only known for a few paraffins, while only generalized values are available for the remainder, some of which contradict each other. In this study, a measurement setup based on the modified guarded hot plate method is developed. It is used to investigate the thermal conductivity of several paraffines in the solid state, including pure n-docosane and its compounds with different types and concentrations of graphite. For n-docosane in the solid state, the thermal conductivity is determined to be 0.49 W/(m K). A particle size of 200 μm with a spherical shape turns out to be optimal to increase the thermal conductivity. This allows the thermal conductivity of a compound with 10% graphite to increase by a factor of three compared to the pure paraffin. Furthermore, significant differences to thermal conductivity data from the literature are found.}},
  author       = {{Paul, Andreas and Baumhögger, Elmar and Dewerth, Mats-Ole and Hami Dindar, Iman and Sonnenrein, Gerrit and Vrabec, Jadran}},
  issn         = {{1388-6150}},
  journal      = {{Journal of Thermal Analysis and Calorimetry}},
  keywords     = {{Physical and Theoretical Chemistry, Condensed Matter Physics}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Thermal conductivity of solid paraffins and several n-docosane compounds with graphite}}},
  doi          = {{10.1007/s10973-023-12107-2}},
  year         = {{2023}},
}

@inproceedings{43394,
  abstract     = {{Die für die Berechnung des Energieeffizienzindex von Haushaltskältegeräten benötigten Parameter werden durch Norm-Messungen im Neuzustand der Geräte bestimmt. Aus früheren Untersuchungen ist bekannt, dass durch verschiedene technische Alterungsmechanismen der Energieverbrauch über eine Produktlebensdauer von 18 Jahren um bis zu 33 % zunehmen kann. Ziel des vom BMWi geförderten Projekts ALGE war es, die verschie-denen Ursachen und Einflussgrößen für die Alterung von Haushaltskältegeräten zu ermitteln und eine Alterungs-funktion zu bestimmen, die den zeitlichen Verlauf des zunehmenden Energieverbrauchs beschreibt.
In diesem Projekt wurde das Alterungsverhalten von Haushaltskältegeräten durch 100 Normenergieverbrauchs-messungen an 32 real gealterten Geräten untersucht. Aus den gewonnenen Ergebnissen konnte eine Alterungs-funktion bestimmt werden, die den Anstieg des Energieverbrauchs beschreibt. Alle untersuchten Geräte wurden an der Universität Paderborn im Neuzustand vermessen und nach einer Laufzeit von bis zu 21 Jahren erneut geprüft. Bereits nach einem zweijährigen Betrieb konnte ein Mehrverbrauch von bis zu 11 % festgestellt werden. Über die durchschnittliche Produktlebensdauer von Haushaltskältegeräten von ca. 16 Jahren steigert sich der Energieverbrauch um durchschnittlich 27 %.
Im Rahmen des Projekts wurden verschiedene Systemkomponenten, wie Isolierung und Verdichter, hinsichtlich ihres Alterungsverhaltens untersucht. Bei dem im Gehäuse als Isolierung verwendeten PUR-Schaum konnte über einen Zeitraum von 31 Monaten ein Anstieg der Wärmeleitfähigkeit von 19,5 W/(m⋅K) auf 24,5 W/(m⋅K) festge-stellt werden. Zur Untersuchung der Alterung der Verdichter wurden zuvor auf einem Kalorimeterteststand ver-messene Verdichter in Geräte eingebaut. Nach einem zweijährigen Betrieb wurden diese Verdichter wieder aus-gebaut und erneut vermessen. Hierbei konnte keine Änderung des COP festgestellt werden. Zusätzlich zu den technischen Parametern wurde der Einfluss des Verbraucherverhaltens analysiert. Hier zeigte sich, dass bis zu 33 % des Gesamtenergieverbrauchs nach einer mehrjährigen Nutzungsdauer verbraucherinduziert sein können.}},
  author       = {{Paul, Andreas and Baumhögger, Elmar and Elsner, Andreas and Reineke, Michael and Kasper, Tina and Schumacher, Daniel and Vrabec, Jadran and  Hüppe, Christian and  Stamminger, Rainer and Hölscher, Heike and Stoll, Ragnar and Wagner, Hendrik and  Gries, Ulrich and Becker, Wolfgang}},
  isbn         = {{978-3-932715-55-6}},
  keywords     = {{Haushaltskältegeräte, Energieverbrauch, Alterung, Verdichter, PUR-Schaum}},
  location     = {{Magdeburg}},
  publisher    = {{Deutscher Kälte‐ und Klimatechnischer Verein e.V.}},
  title        = {{{Alterungsmechanismen von Haushaltskältegeräten}}},
  year         = {{2023}},
}

@article{43034,
  abstract     = {{<jats:title>Abstract</jats:title>
               <jats:p>The accessibility to rheological parameters for concrete is becoming more and more relevant. This is mainly related to the constantly emerging challenges, such as not only the development of high-strength concretes is progressing very fast but also the simulation of the flow behaviour is of high importance. The main problem, however, is that the rheological characterisation of fresh concrete is not possible via commercial rheometers. The so-called concrete rheometers provide valuable relative values for comparing different concretes, but they cannot measure absolute values. Therefore, we developed an adaptive coaxial concrete rheometer (ACCR) that allows the measurement of fresh concrete with particles up to <jats:inline-formula>
                     <jats:alternatives>
                        <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/j_arh-2022-0140_eq_001.png" />
                        <m:math xmlns:m="http://www.w3.org/1998/Math/MathML">
                           <m:msub>
                              <m:mrow>
                                 <m:mi>d</m:mi>
                              </m:mrow>
                              <m:mrow>
                                 <m:mi mathvariant="normal">max</m:mi>
                              </m:mrow>
                           </m:msub>
                           <m:mo>=</m:mo>
                           <m:mn>5.5</m:mn>
                           <m:mspace width=".5em" />
                           <m:mi mathvariant="normal">mm</m:mi>
                        </m:math>
                        <jats:tex-math>{d}_{{\rm{\max }}}=5.5\hspace{.5em}{\rm{mm}}</jats:tex-math>
                     </jats:alternatives>
                  </jats:inline-formula>. The comparison of the ACCR with a commercial rheometer showed very good agreement for selected test materials (Newtonian fluid, shear thinning fluid, suspension, and yield stress fluid), so that self-compacting concrete was subsequently measured. Since these measurements showed a very high reproducibility, the rheological properties of the fresh concrete could be determined with high accuracy. The common flow models (Bingham (B), Herschel–Bulkley, modified Bingham (MB) models) were also tested for their applicability, with the Bingham and the modified Bingham model proving to be the best suitable ones.</jats:p>}},
  author       = {{Josch, Sebastian and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  issn         = {{1617-8106}},
  journal      = {{Applied Rheology}},
  keywords     = {{Condensed Matter Physics, General Materials Science}},
  number       = {{1}},
  publisher    = {{Walter de Gruyter GmbH}},
  title        = {{{Development of an adaptive coaxial concrete rheometer and rheological characterisation of fresh concrete}}},
  doi          = {{10.1515/arh-2022-0140}},
  volume       = {{33}},
  year         = {{2023}},
}

@article{43128,
  author       = {{Rüther, Moritz Johannes and Klippstein, Sven Helge and Ponusamy, SathishKumar and Rüther, Torben and Schmid, Hans-Joachim}},
  issn         = {{0032-5910}},
  journal      = {{Powder Technology}},
  keywords     = {{General Chemical Engineering}},
  publisher    = {{Elsevier BV}},
  title        = {{{Flowability of polymer powders at elevated temperatures for additive manufacturing}}},
  doi          = {{10.1016/j.powtec.2023.118460}},
  volume       = {{422}},
  year         = {{2023}},
}

