@article{SteindlSakoparnigBriendletal., author = {Steindl, Florian Roman and Sakoparnig, Marlene and Briendl, Lukas G. and Thumann, Maria and Galan, Isabel and Juhart, Joachim and R{\"o}ck, Rudolf and Saxer, Andreas and Mittermayr, Florian and Kusterle, Wolfgang}, title = {ASSpC - Vier Jahre Forschung f{\"u}r dauerhaften Spritzbeton}, series = {Bautechnik}, journal = {Bautechnik}, publisher = {Wilhelm Ernst \& Sohn}, address = {Berlin}, language = {de} } @misc{SchrollDecker, author = {Schroll-Decker, Irmgard}, title = {Rezension vom 08.01.2020 zu: Johanna Gebrande, Claudia Pfrang, Georg Frericks (Hrsg.): Bildungsangebote f{\"u}r Menschen ab 50 Jahren zielgruppenspezifisch planen. wbv Media GmbH \& Co. KG (Bielefeld) 2019. ISBN 978-3-7639-5821-4}, series = {socialnet Rezensionen}, journal = {socialnet Rezensionen}, issn = {2190-9245}, language = {de} } @misc{SchrollDecker, author = {Schroll-Decker, Irmgard}, title = {Rezension vom 02.03.2020 zu: Daniela Eberhardt: Generationen zusammen f{\"u}hren. Mit Millennials, Generation X und Babyboomern die Arbeitswelt gestalten. Haufe-Lexware GmbH \& Co. KG (Freiburg) 2018. 2. Auflage. ISBN 978-3-648-12049-1}, series = {socialnet Rezensionen}, journal = {socialnet Rezensionen}, issn = {2190-9245}, language = {de} } @misc{SchrollDecker, author = {Schroll-Decker, Irmgard}, title = {Rezension zu: Ethik des Wissens. Freiheit und Verantwortung der Wissenschaft in Zeiten des Klimawandels. oekom Verlag (M{\"u}nchen) 2019. ISBN 978-3-96238-163-9}, series = {socialnet Rezensionen}, journal = {socialnet Rezensionen}, issn = {2190-9245}, language = {de} } @misc{OlbrichPongratzBierletal., author = {Olbrich, Florian and Pongratz, Christian and Bierl, Rudolf and Ehrlich, Ingo}, title = {Method and System for Evaluating a Structural Integrity of an Aerial Vehicle}, series = {Europ{\"a}isches Patentblatt (09.12.2020) zur Anmeldung: OTH Regensburg, Anmeldenummer: 19179054.2, Patentnummer 1001/3748327, Ver{\"o}ffentlichungsnummer: 3 748 327}, journal = {Europ{\"a}isches Patentblatt (09.12.2020) zur Anmeldung: OTH Regensburg, Anmeldenummer: 19179054.2, Patentnummer 1001/3748327, Ver{\"o}ffentlichungsnummer: 3 748 327}, pages = {395 -- 396}, language = {en} } @article{TerbrackFrankHerrmannetal., author = {Terbrack, Hajo and Frank, Ingo and Herrmann, Frank and Claus, Thorsten and Trost, Marco and G{\"o}tz, Matthias}, title = {A literature database on ecological sustainability in hierarchical production planning}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik}, number = {12}, publisher = {AKWI}, issn = {2296-4592}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-23539}, pages = {36 -- 40}, abstract = {This article describes a systematic literature search of research articles on the topics of ecological sustainability and production planning. Over 900 research articles deal intensively with these topics. These articles were catalogued and included in a database. They can be evaluated with an analysis tool, developed by the research group. The tool is available free of charge via a website of the research group.}, language = {en} } @article{SchorrCarrilloLiKaufholdetal., author = {Schorr, Philipp and Carrillo Li, Enrique Roberto and Kaufhold, Tobias and Rodriguez Hernandez, Jorge Antonio and Zentner, Lena and Zimmermann, Klaus and B{\"o}hm, Valter}, title = {Kinematic analysis of a rolling tensegrity structure with spatially curved members}, series = {Meccanica}, volume = {56}, journal = {Meccanica}, publisher = {Springer}, organization = {Springer}, issn = {0025-6455}, doi = {10.1007/s11012-020-01199-x}, pages = {953 -- 961}, abstract = {In this work, a tensegrity structure with spatially curved members is applied as rolling locomotion system. The actuation of the structure allows a variation of the originally cylindrical shape to a conical shape. Moreover, the structure is equipped with internal movable masses to control the position of the center of mass of the structure. To control the locomotion system a reliable actuation strategy is required. Therefore, the kinematics of the system considering the nonholonomic constraints are derived in this paper. Based on the resulting insight in the locomotion behavior a feasible actuation strategy is designed to control the trajectory of the system. To verify this approach kinematic analyses are evaluated numerically. The simulation data confirm the path following due to an appropriate shape change of the tensegrity structure. Thus, this system enables a two-dimensional rolling locomotion.}, language = {en} } @article{WeberChristenHerrmann, author = {Weber, Karsten and Christen, Markus and Herrmann, Dominik}, title = {Bedrohung, Verwundbarkeit, Werte und Schaden : Cyberattacken und Cybersicherheit als Thema der Technikfolgenabsch{\"a}tzung}, series = {TATuP - Journal for Technology Assessment in Theory and Practice}, volume = {29}, journal = {TATuP - Journal for Technology Assessment in Theory and Practice}, number = {1}, publisher = {oekom-verlag}, issn = {2567-8833}, doi = {10.14512/tatup.29.1.10}, pages = {10 -- 43}, abstract = {The annual monetary costs incurred worldwide by cyberattacks are growing steadily and are on a scale comparable to the budgets of entire countries. Cyberattacks affect individuals, businesses, public institutions, authorities, and governments; they affect an infrastructure without which modern societies can hardly function. But ensuring cybersecurity can lead to conflicts of interest. Technologies used to ensure the security and resilience of this infrastructure should therefore be a subject of technology assessment.}, language = {de} } @article{Schoepf, author = {Sch{\"o}pf, Nicolas}, title = {Die Bew{\"a}ltigung von Jugend: Zur Rolle von Bildung, Ausbildung und Beruf}, series = {bwp@ - Berufs- und Wirtschaftsp{\"a}dagogik online}, volume = {38}, journal = {bwp@ - Berufs- und Wirtschaftsp{\"a}dagogik online}, issn = {1618-8543}, pages = {1 -- 18}, abstract = {Neben Thiersch hat u.a. B{\"o}hnisch den Begriff der Lebenswelt aufgegriffen und zu einer sozialp{\"a}dagogischen Theorie ausgearbeitet, f{\"u}r die der der Gedanke der „Lebensbew{\"a}ltigung" zentral ist (B{\"o}hnisch 2018). Das Konzept der Lebensbew{\"a}ltigung begreift Jugend als biografischen Raum, in dem zahlreiche Bew{\"a}ltigungsaufgaben anstehen. Eingebettet in den jugendsoziologischen Diskurs um Jugend zwischen Transition, Bildungsmoratorium und Entgrenzung werden Elemente der Theorie der Lebensbew{\"a}ltigung aufgegriffen und die Bedeutung von Bildung und Beruf in jugendlicher Lebenswelt skizziert. Dabei geht es u.a. um die Integrations- und Qualifikationsaufgaben von „Bew{\"a}ltigungskulturen", m{\"o}gliche „Integrationsfallen" und in der Jugend emergierende Bew{\"a}ltigungsaufgaben.}, language = {de} } @incollection{SchneiderDanwitz, author = {Schneider-Danwitz, Klaus}, title = {Schlegel/Voelzke: Sozialgesetzbuch Zehntes Buch - Sozialverwaltungsverfahren und Sozialdatenschutz}, series = {JURIS Praxiskommentar - Onlinekommentar zum SGB X, \S\S 39 ff., letzte Aktualisierung 7/2020}, booktitle = {JURIS Praxiskommentar - Onlinekommentar zum SGB X, \S\S 39 ff., letzte Aktualisierung 7/2020}, language = {de} } @article{SchmidtStraubSindersbergeretal., author = {Schmidt, Henrik and Straub, Benedikt B. and Sindersberger, Dirk and Br{\"o}ckel, Ulrich and Monkman, Gareth J. and Auernhammer, G{\"u}nter}, title = {Collision and separation of nickel particles embedded in a Poly dimethylsiloxan matrix under a rotating magnetic field: A strong magneto active function}, series = {Colloid and Polymer Science}, volume = {299}, journal = {Colloid and Polymer Science}, publisher = {Springer}, doi = {10.1007/s00396-020-04784-4}, pages = {955 -- 967}, abstract = {In order to function as soft actuators, depending on their field of use, magnetorheological elastomers (MREs) must fulfill certain criteria. To name just a few, these can include rapid response to external magnetic fields, mechanical durability, mechanical strength, and/or large deformation. Of particular interest are MREs which produce macroscopic deformation for small external magnetic field variations. This work demonstrates how this can be achieved by just a small change in magnetic field orientation. To achieve this, (super)paramagnetic nickel particles of size ≈ 160 μm were embedded in a non-magnetic polydimethylsiloxan (PDMS) (661-1301 Pa) and their displacement in a stepwise rotated magnetic field (170 mT) recorded using a video microscope. Changes in particle aggregation resulting from very small variations in magnetic field orientation led to the observation of a new strongly magneto-active effect. This configuration is characterized by an interparticle distance in relation to the angle difference between magnetic field and particle axis. This causes a strong matrix deformation which in turn demonstrates hysteresis on relaxation. It is shown that the occurrence strongly depends on the particle size, particle distance, and stiffness of the matrix. Choosing the correct parameter combination, the state can be suppressed and the particle-matrix system demonstrates no displacement or hysteresis. In addition, evidences of non-negligible higher order magnetization effects are experimentally ascertained which is qualitatively in agreement with similar, already theoretically described, particle systems. Even at larger particle geometries, the new strongly magneto-active configuration is preserved and could create macroscopic deformation changes.}, language = {en} } @article{SchiekBaronio, author = {Schiek, Roland and Baronio, Fabio}, title = {Spatial Akhmediev breathers and modulation instability growth-decay cycles in a quadratic optical medium}, series = {Physical Review Research}, volume = {1}, journal = {Physical Review Research}, number = {3}, publisher = {American Physical Society}, doi = {10.1103/PhysRevResearch.1.032036}, pages = {1 -- 5}, abstract = {We investigate the spatial nonlinear localization of light on a quasi-plane-wave background with a harmonic perturbation induced by modulation instability in a quadratic nonlinear optical medium. In particular, we demonstrate experimentally the excitation of deterministic Akhmediev breathers and thus the growth-decay dynamics of modulation instability in a LiNbO3 slab waveguide. The results should stimulate new interest in modulation instability, extreme events, turbulence, recurrence, and supercontinuum generation in quadratic nonlinear optics.}, language = {en} } @article{SavelevBelyaevaChashinetal., author = {Savelev, Dmitrii V. and Belyaeva, Inna A. and Chashin, Dmitri V. and Fetisov, Leonid Y. and Shamonin (Chamonine), Mikhail}, title = {Large Wiedemann effect in a magnetoactive elastomer}, series = {Journal of Magnetism and Magnetic Materials}, volume = {511}, journal = {Journal of Magnetism and Magnetic Materials}, number = {October}, publisher = {Elsevier}, doi = {10.1016/j.jmmm.2020.166969}, abstract = {Large twists of a soft tube (hollow cylinder) in helical magnetic fields are presented for the first time. Such a phenomenon is usually denoted as the Wiedemann effect. The tube is fabricated from a soft magnetoactive elastomer material with the shear modulus of about 56 kPa. The composite material comprises 80 mass\% of micrometer-sized iron particles embedded into a polydimethylsiloxane matrix. The circular magnetic field is generated by an electric current in a straight wire passing through the inner hole of the tube. The maximum value of approximately 350″/cm is observed in a longitudinal magnetic field of a few kA/m overlapped with a circumferential magnetic field of about 1.4 kA/m on the surface of the inner hole. A pronounced hysteresis in the dependence of the Wiedemann effect on the circular magnetic field is found. The ways to enhance the Wiedemann twist in magnetoactive elastomers are discussed. The observed large effect is promising for application in magnetic-field controlled torsional actuators, in particular for soft robotics.}, language = {en} } @article{SavelevBelyaevaChashinetal., author = {Savelev, Dmitrii V. and Belyaeva, Inna A. and Chashin, Dmitri V. and Fetisov, Leonid Y. and Romeis, Dirk and Kettl, Wolfgang and Kramarenko, Elena Yu and Saphiannikova, Marina and Stepanov, Gennady V. and Shamonin (Chamonine), Mikhail}, title = {Giant extensional strain of magnetoactive elastomeric cylinders in uniform magnetic fields}, series = {Materials}, volume = {13}, journal = {Materials}, number = {15}, publisher = {MDPI}, address = {Basel}, issn = {1996-1944}, doi = {10.3390/ma13153297}, pages = {1 -- 17}, abstract = {Elongations of magnetoactive elastomers (MAEs) under ascending-descending uniform magnetic fields were studied experimentally using a laboratory apparatus specifically designed to measure large extensional strains (up to 20\%) in compliant MAEs. In the literature, such a phenomenon is usually denoted as giant magnetostriction. The synthesized cylindrical MAE samples were based on polydimethylsiloxane matrices filled with micrometer-sized particles of carbonyl iron. The impact of both the macroscopic shape factor of the samples and their magneto-mechanical characteristics were evaluated. For this purpose, the aspect ratio of the MAE cylindrical samples, the concentration of magnetic particles in MAEs and the effective shear modulus were systematically varied. It was shown that the magnetically induced elongation of MAE cylinders in the maximum magnetic field of about 400 kA/m, applied along the cylinder axis, grew with the increasing aspect ratio. The effect of the sample composition is discussed in terms of magnetic filler rearrangements in magnetic fields and the observed experimental tendencies are rationalized by simple theoretical estimates. The obtained results can be used for the design of new smart materials with magnetic-field-controlled deformation properties, e.g., for soft robotics.}, language = {en} } @article{SavelevChashinFetisovetal., author = {Savelev, Dmitrii V. and Chashin, Dmitri V. and Fetisov, Leonid Y. and Shamonin (Chamonine), Mikhail and Fetisov, Yuri K.}, title = {Ceramic-Heterostructure-Based Magnetoelectric Voltage Transformer with an Adjustable Transformation Ratio}, series = {Materials}, volume = {13}, journal = {Materials}, number = {18}, publisher = {MDPI}, doi = {10.3390/ma13183981}, pages = {1 -- 13}, abstract = {A voltage transformer employing the magnetoelectric effect in a composite ceramic heterostructure with layers of a magnetostrictive nickel-cobalt ferrite and a piezoelectric lead zirconate-titanate is described. In contrast to electromagnetic and piezoelectric transformers, a unique feature of the presented transformer is the possibility of tuning the voltage transformation ratio K using a dc magnetic field. The dependences of the transformer characteristics on the frequency and the amplitude of the input voltage, the strength of the control magnetic field and the load resistance are investigated. The transformer operates in the voltage range between 0 and 112 V, and the voltage transformation ratio K is tuned between 0 and 14.1 when the control field H changes between 0 and 6.4 kA/m. The power at the transformer output reached 63 mW, and the power conversion efficiency was 34\%. The methods for calculation of the frequency response, and the field and load characteristics of the transformer are proposed. The ways to improve performance characteristics of magnetoelectric transformers and their possible application areas are discussed.}, language = {en} } @article{RomeisKostrovKramarenkoetal., author = {Romeis, Dirk and Kostrov, Sergei A. and Kramarenko, Elena Yu and Stepanov, Gennady V. and Shamonin (Chamonine), Mikhail and Saphiannikova, Marina}, title = {Magnetic-field-induced stress in confined magnetoactive elastomers}, series = {Soft Matter}, volume = {16}, journal = {Soft Matter}, number = {39}, publisher = {Royal Society of Chemistry}, address = {Cambridge}, doi = {10.1039/D0SM01337D}, pages = {9047 -- 9058}, abstract = {We present a theoretical approach for calculating the state of stress induced by a uniform magnetic field in confined magnetoactive elastomers of arbitrary shape. The theory explicitly includes the magnetic field generated by magnetizable spherical inclusions in the sample interior assuming a non-linear magnetization behavior. The initial spatial distribution of particles and its change in an external magnetic field are considered. This is achieved by the introduction of an effective demagnetizing factor where both the sample shape and the material microstructure are taken into account. Theoretical predictions are fitted to the stress data measured using a specifically designed experimental setup. It is shown that the theory enables the quantification of the effect of material microstructure upon introducing a specific microstructural factor and its derivative with respect to the extensional strain in the undeformed state. The experimentally observed differences between isotropic and anisotropic samples, compliant and stiff elastomer matrices are explained.}, language = {en} } @article{MikhaeilGadererDawoud, author = {Mikhaeil, Makram and Gaderer, Matthias and Dawoud, Belal}, title = {On the development of an innovative adsorber plate heat exchanger for adsorption heat transformation processes; an experimental and numerical study}, series = {Energy}, volume = {207}, journal = {Energy}, number = {September}, publisher = {Elsevier}, doi = {10.1016/j.energy.2020.118272}, pages = {1 -- 13}, abstract = {An innovative adsorber plate heat exchanger (APHE), which is developed for application in adsorption heat pumps, chillers and thermal energy storage systems, is introduced. A test frame has been constructed as a representative segment of the introduced APHE for applying loose grains of AQSOA-Z02. Adsorption kinetic measurements have been carried out in a volumetric large-temperature-jump setup under typical operating conditions of adsorption processes. A transient 2-D model is developed for the tested sample inside the setup. The measured temporal uptake variations with time have been fed to the model, through which a micro-pore diffusion coefficient at infinite temperature of 2 E-4 [m2s-1] and an activation energy of 42.1 [kJ mol-1] have been estimated. A 3-D model is developed to simulate the combined heat and mass transfer inside the APHE and implemented in a commercial software. Comparing the obtained results with the literature values for an extruded aluminium adsorber heat exchanger coated with a 500 μm layer of the same adsorbent, the differential water uptake obtained after 300 s of adsorption (8.2 g/100 g) implies a sound enhancement of 310\%. This result proves the great potential of the introduced APHE to remarkably enhance the performance of adsorption heat transformation appliances.}, language = {en} } @article{Herrmann, author = {Herrmann, Frank}, title = {Die Smart Factory und ihre Risiken}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik}, number = {12}, publisher = {AKWI}, pages = {70 -- 83}, abstract = {In dieser Arbeit werden die Risiken einer Smart Factory untersucht und strukturiert dargestellt, um den Status der Smart Factory zu sondieren. Somit dient die Arbeit als {\"U}berblick {\"u}ber die technischen Komponen-ten einer Smart Factory und die damit verbundenen Risiken und nimmt eine ganzheitliche Sichtweise der Smart Factory ein. Die Ergebnisse zeigen, dass der gr{\"o}ßte Handlungsbedarf im technologischen Bereich liegt. Folglich wurden die Themen Standardisierung, Informationssicherheit, Verf{\"u}gbarkeit der IT-Infrastruktur, Verf{\"u}gbarkeit von schnellem Internet und komplexen Systemen priorisiert. Die organisato-rischen und finanziellen Risiken, welche ebenfalls eine wichtige Rolle bei einer Smart Factory Transfor-mation spielen, werden dabei adressiert.}, language = {de} } @misc{SchrollDecker, author = {Schroll-Decker, Irmgard}, title = {Rezension zu: Angela Kreuz; Dieter Lohr (Hrsg.): Frauen.Wahl.Recht. Der 19. Januar 1919. Lesungen mit Texten von Fanny Lewald, Hedwig Dohm, Helene Lange, Constanze Hallgarten, Minna Cauer, Marianne Weber, Ina Seidel, Thomas Mann, Viktor Klemperer, Oskar M{\"u}nsterberg, Ludwig Langemann, Marie Bernays, Harry Graf Kessler, Lida Gustava Heymann, K{\"a}the Kollwitz und Marie Juchacz. Gelesen von Gunna Wendt, Eva Demski, Monika Manz, Eva Sixt, Kira Bohn, Christin Alexandrow, Michael Haake, Martin Hofer, Matthias Winter, Eva Ambrosius, Bettina Sch{\"o}nenberg, Sofia Mindel, Kai Raecke, Ole Bosse und Doris Dubiel. Musik: Gabriele Wahlbrink. 1 Audio-CD, 78 Minuten, (LOHRB{\"a}r Verlag) Regensburg 2018}, series = {Die Besprechung. Rezensionsdienst - B{\"u}cher, CDs, CD-ROMs, DVDs unter die Lupe genommen}, volume = {14}, journal = {Die Besprechung. Rezensionsdienst - B{\"u}cher, CDs, CD-ROMs, DVDs unter die Lupe genommen}, number = {1}, pages = {2 -- 3}, language = {de} } @incollection{Weber, author = {Weber, Karsten}, title = {Technik in der Pflege: Bestandsaufnahme, Entwicklungsm{\"o}glichkeiten und normative Bewertung}, series = {Neue Technologien f{\"u}r die Pflege ; grundlegende Reflexionen und pragmatische Befunde}, booktitle = {Neue Technologien f{\"u}r die Pflege ; grundlegende Reflexionen und pragmatische Befunde}, number = {174}, editor = {H{\"u}lsken-Gießler, M. and Kreutzer, Susanne and D{\"u}tthorn, Nadin}, publisher = {Vandenhoeck \& Ruprecht}, address = {G{\"o}ttingen}, isbn = {978-3-7370-1202-7}, doi = {10.14220/9783737012027.153}, language = {de} }