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Complete list of publications from the University Bibliography

Anzahl der Treffer: 143
Erstellt: Wed, 25 Nov 2020 23:23:37 +0100 in 0.7856 sec


Boeck, Thomas; Sanjari, Seyed Loghman; Becker, Tatiana;
Parametric instability of a magnetic pendulum in the presence of a vibrating conducting plate. - In: Nonlinear dynamics. - Dordrecht [u.a.] : Springer Science + Business Media B.V, ISSN 1573-269X, (2020), insges. 18 S.
- Published: 17 November 2020

A pendulum with an attached permanent magnet swinging in the vicinity of a conductor is a typical experiment for the demonstration of electromagnetic braking and Lenz law of induction. When the conductor itself moves, it can transfer energy to the pendulum. An exact analytical model of such an electromagnetic interaction is possible for a flat conducting plate. The eddy currents induced in the plate by a moving magnetic dipole and the resulting force and torque are known analytically in the quasistatic limit, i.e., when the magnetic diffusivity is sufficiently high to ensure an equilibrium of magnetic field advection and diffusion. This allows us to study a simple pendulum with a magnetic dipole moment in the presence of a horizontal plate oscillating in vertical direction. Equilibrium of the pendulum in the vertical position can be realized in three cases considered, i.e., when the magnetic moment is parallel to the rotation axis, or otherwise, its projection onto the plane of motion is either horizontal or vertical. The stability problem is described by a differential equation of Mathieu type with a damping term. Instability is only possible when the vibration amplitude and the distance between plate and magnet satisfy certain constraints related to the simultaneous excitation and damping effects of the plate. The nonlinear motion is studied numerically for the case when the magnetic moment and rotation axis are parallel. Chaotic behavior is found when the eigenfrequency is sufficiently small compared to the excitation frequency. The plate oscillation typically has a stabilizing effect on the inverted pendulum.



https://doi.org/10.1007/s11071-020-06054-y
Angermeier, Sebastian; Karcher, Christian;
Model-based condenser fan speed optimization of vapor compression systems. - In: Energies : open-access journal of related scientific research, technology development and studies in policy and management.. - Basel : MDPI, ISSN 1996-1073, Volume 13 (2020), issue 22, 6012, Seite 1-26

https://doi.org/10.3390/en13226012
Chehreh, Abootorab; Grätzel, Michael; Bergmann, Jean Pierre; Walther, Frank;
Fatigue behavior of conventional and stationary shoulder friction stir welded EN AW-5754 aluminum alloy using load increase method. - In: Metals : open access journal.. - Basel : MDPI, ISSN 2075-4701, Volume 10 (2020), issue 11, 1510, Seite 1-11

https://doi.org/10.3390/met10111510
Zhang, Chen; Gebhart, Ingo; Kühmstedt, Peter; Rosenberger, Maik; Notni, Gunther;
Enhanced contactless vital sign estimation from real-time multimodal 3D image data. - In: Journal of imaging : open access journal.. - Basel : MDPI, ISSN 2313-433X, Volume 6 (2020), issue 11, 123, Seite 1-15

https://doi.org/10.3390/jimaging6110123
Glombiewski, Nikolaus; Götze, Philipp; Körber, Michael; Morgen, Andreas; Seeger, Bernhard;
Designing an event store for a modern three-layer storage hierarchy. - In: Datenbank-Spektrum : Zeitschrift für Datenbanktechnologie ; Organ der Fachgruppe Datenbanken der Gesellschaft für Informatik e.V... - Berlin : Springer, ISSN 1610-1995, Bd. 20 (2020), 3, S. 211-222

Event stores face the difficult challenge of continuously ingesting massive temporal data streams while satisfying demanding query and recovery requirements. Many of todays systems deal with multiple hardware-based trade-offs. For instance, long-term storage solutions balance keeping data in cheap secondary media (SSDs, HDDs) and performance-oriented main-memory caches. As an alternative, in-memory systems focus on performance, while sacrificing monetary costs, and, to some degree, recovery guarantees. The advent of persistent memory (PMem) led to a multitude of novel research proposals aiming to alleviate those trade-offs in various fields. So far, however, there is no proposal for a PMem-powered specialized event store.



https://doi.org/10.1007/s13222-020-00356-6
Xu, Rui; Wen, Liaoyong; Wang, Zhijie; Zhao, Huaping; Mu, Guannan; Zeng, Zhiqiang; Zhou, Min; Bohm, Sebastian; Zhang, Huanming; Wu, Yuhan; Runge, Erich; Lei, Yong;
Programmable multiple plasmonic resonances of nanoparticle superlattice for enhancing photoelectrochemical activity. - In: Advanced functional materials. - Weinheim : Wiley-VCH, ISSN 1616-3028, (2020), 2005170, S. 1-10
- First published: 16 September 2020

https://doi.org/10.1002/adfm.202005170
Schricker, Klaus; Alhomsi, Mohammad; Bergmann, Jean Pierre;
Thermal efficiency in laser-assisted joining of polymer-metal composites. - In: Materials. - Basel : MDPI, ISSN 1996-1944, Volume 13 (2020), issue 21, 4875, Seite 1-16

https://doi.org/10.3390/ma13214875
Raake, Alexander; Borer, Silvio; Satti, Shahid M.; Gustafsson, Jörgen; Ramachandra Rao, Rakesh Rao; Medagli, Stefano; List, Peter; Göring, Steve; Lindero, David; Robitza, Werner; Heikkilä, Gunnar; Broom, Simon; Schmidmer, Christian; Feiten, Bernhard; Wüstenhagen, Ulf; Wittmann, Thomas; Obermann, Matthias; Bitto, Roland;
Multi-model standard for bitstream-, pixel-based and hybrid video quality assessment of UHD/4K: ITU-T P.1204. - In: IEEE access : practical research, open solutions.. - New York, NY : IEEE, ISSN 2169-3536, Bd. 8 (2020), S. 193020-193049

https://doi.org/10.1109/ACCESS.2020.3032080
Eichfelder, Gabriele; Klamroth, Kathrin; Niebling, Julia;
Nonconvex constrained optimization by a filtering branch and bound. - In: Journal of global optimization. - Dordrecht [u.a.] : Springer Science + Business Media B.V, ISSN 1573-2916, (2020), insges. 31 S.
- Published: 15 October 2020

A major difficulty in optimization with nonconvex constraints is to find feasible solutions. As simple examples show, the [alpha]BB-algorithm for single-objective optimization may fail to compute feasible solutions even though this algorithm is a popular method in global optimization. In this work, we introduce a filtering approach motivated by a multiobjective reformulation of the constrained optimization problem. Moreover, the multiobjective reformulation enables to identify the trade-off between constraint satisfaction and objective value which is also reflected in the quality guarantee. Numerical tests validate that we indeed can find feasible and often optimal solutions where the classical single-objective [alpha]BB method fails, i.e., it terminates without ever finding a feasible solution.



https://doi.org/10.1007/s10898-020-00956-2
Prinz, Sebastian; Thomann, Jana; Eichfelder, Gabriele; Boeck, Thomas; Schumacher, Jörg;
Expensive multi-objective optimization of electromagnetic mixing in a liquid metal. - In: Optimization and engineering. - Dordrecht [u.a.] : Springer Science + Business Media B.V, ISSN 1573-2924, (2020), insges. 25 S.
- Published: 07 October 2020

This paper presents a novel trust-region method for the optimization of multiple expensive functions. We apply this method to a biobjective optimization problem in fluid mechanics, the optimal mixing of particles in a flow in a closed container. The three-dimensional time-dependent flows are driven by Lorentz forces that are generated by an oscillating permanent magnet located underneath the rectangular vessel. The rectangular magnet provides a spatially non-uniform magnetic field that is known analytically. The magnet oscillation creates a steady mean flow (steady streaming) similar to those observed from oscillating rigid bodies. In the optimization problem, randomly distributed mass-less particles are advected by the flow to achieve a homogeneous distribution (objective function 1) while keeping the work done to move the permanent magnet minimal (objective function 2). A single evaluation of these two objective functions may take more than two hours. For that reason, to save computational time, the proposed method uses interpolation models on trust-regions for finding descent directions. We show that, even for our significantly simplified model problem, the mixing patterns vary significantly with the control parameters, which justifies the use of improved optimization techniques and their further development.



https://doi.org/10.1007/s11081-020-09561-4
Angermeier, Sebastian; Ketterer, Jonas; Karcher, Christian;
Liquid-based battery temperature control of electric buses. - In: Energies : open-access journal of related scientific research, technology development and studies in policy and management.. - Basel : MDPI, ISSN 1996-1073, Volume 13 (2020), issue 19, 4990, Seite 1-20

https://doi.org/10.3390/en13194990
Solf, Benjamin; Schramm, Stefan; Blum, Maren-Christina; Klee, Sascha;
The influence of the stimulus design on the harmonic components of the steady-state visual evoked potential. - In: Frontiers in human neuroscience. - Lausanne : Frontiers Research Foundation, ISSN 1662-5161, Bd. 14 (2020), 343, S. 1-11

https://doi.org/10.3389/fnhum.2020.00343
Weidner, Florian; Broll, Wolfgang;
Stereoscopic 3D dashboards : an investigation of performance, workload, and gaze behavior during take-overs in semi-autonomous driving. - In: Personal and ubiquitous computing : PUC.. - London : Springer, ISSN 1617-4917, (2020), insges. 23 S.
- Published: 25 August 2020

When operating a conditionally automated vehicle, humans occasionally have to take over control. If the driver is out of the loop, a certain amount of time is necessary to gain situation awareness. This work evaluates the potential of stereoscopic 3D (S3D) dashboards for presenting smart S3D take-over-requests (TORs) to support situation assessment. In a driving simulator study with a 4 × 2 between-within design, we presented 3 smart TORs showing the current traffic situation and a baseline TOR in 2D and S3D to 52 participants doing the n-back task. We further investigate if non-standard locations affect the results. Take-over performance indicates that participants looked at and processed the TORs' visual information and by that, could perform more safe take-overs. S3D warnings in general, as well as warnings appearing at the participants focus of attention and warnings at the instrument cluster, performed best. We conclude that visual warnings, presented on an S3D dashboard, can be a valid option to support take-over while not increasing workload. We further discuss participants gaze behavior in the context of visual warnings for automotive user interfaces.



https://doi.org/10.1007/s00779-020-01438-8
Schorr, Philipp; Li, Enrique Roberto Carrillo; Kaufhold, Tobias; Hernández, Jorge Antonio Rodríguez; Zentner, Lena; Zimmermann, Klaus; Böhm, Valter;
Kinematic analysis of a rolling tensegrity structure with spatially curved members. - In: Meccanica. - Dordrecht [u.a.] : Springer Science + Business Media B.V, ISSN 1572-9648, (2020), insges. 9 S.
- Published: 14 July 2020

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.



https://doi.org/10.1007/s11012-020-01199-x
Lasch, Robert; Oukid, Ismail; Dementiev, Roman; May, Norman; Demirsoy, Suleyman S.; Sattler, Kai-Uwe;
Faster & strong: string dictionary compression using sampling and fast vectorized decompression. - In: The VLDB journal. - Berlin : Springer, ISSN 0949-877X, (2020), insges. 23 S.
- Published: 20 July 2020

String dictionaries constitute a large portion of the memory footprint of database applications. While strong string dictionary compression algorithms exist, these come with impractical access and compression times. Therefore, lightweight algorithms such as front coding (PFC) are favored in practice. This paper endeavors to make strong string dictionary compression practical. We focus on Re-Pair Front Coding (RPFC), a grammar-based compression algorithm, since it consistently offers better compression ratios than other algorithms in the literature. To accelerate compression times, we propose block-based RPFC (BRPFC) which consists in independently compressing small blocks of the dictionary. For further accelerated compression times especially on large string dictionaries, we also propose an alternative version of BRPFC that uses sampling to speed up compression. Moreover, to accelerate access times, we devise a vectorized access method, using Intel® Advanced Vector Extensions 512 (Intel® AVX-512). Our experimental evaluation shows that sampled BRPFC offers compression times up to 190 × faster than RPFC, and random string lookups 2.3 × faster than RPFC on average. These results move our modified RPFC into a practical range for use in database systems because the overhead of Re-Pair-based compression for access times can be reduced by 2 ×.



https://doi.org/10.1007/s00778-020-00620-x
Söllner, Fritz;
[Rezension von: Rindermann, Heiner, 1966-, Cognitive capitalism]. - In: Public choice. - Dordrecht [u.a.] : Springer Science + Business Media B.V., ISSN 1573-7101, (2020), insges. 5 S.

- Published: 31 March 2020

https://doi.org/10.1007/s11127-020-00802-9
Al-Sayeh, Hani; Hagedorn, Stefan; Sattler, Kai-Uwe;
A gray-box modeling methodology for runtime prediction of Apache Spark jobs. - In: Distributed and parallel databases : an international journal.. - New York, NY [u.a.] : Consultants Bureau, ISSN 1573-7578, Bd. 38 (2020), 4, S. 819-839

Apache Spark jobs are often characterized by processing huge data sets and, therefore, require runtimes in the range of minutes to hours. Thus, being able to predict the runtime of such jobs would be useful not only to know when the job will finish, but also for scheduling purposes, to estimate monetary costs for cloud deployment, or to determine an appropriate cluster configuration, such as the number of nodes. However, predicting Spark job runtimes is much more challenging than for standard database queries: cluster configuration and parameters have a significant performance impact and jobs usually contain a lot of user-defined code making it difficult to estimate cardinalities and execution costs. In this paper, we present a gray-box modeling methodology for runtime prediction of Apache Spark jobs. Our approach comprises two steps: first, a white-box model for predicting the cardinalities of the input RDDs of each operator is built based on prior knowledge about the behavior and application parameters such as applied filters data, number of iterations, etc. In the second step, a black-box model for each task constructed by monitoring runtime metrics while varying allocated resources and input RDD cardinalities is used. We further show how to use this gray-box approach not only for predicting the runtime of a given job, but also as part of a decision model for reusing intermediate cached results of Spark jobs. Our methodology is validated with experimental evaluation showing a highly accurate prediction of the actual job runtime and a performance improvement if intermediate results can be reused.



https://doi.org/10.1007/s10619-020-07286-y
Stöhr, Annika; Budzinski, Oliver; Jasper, Jörg;
The New E.ON on the German electricity market - competitive impact of the innogy acquisition :
Die Neue E.ON auf dem deutschen Strommarkt - wettbewerbliche Auswirkungen der innogy-Übernahme. - In: List Forum für Wirtschafts- und Finanzpolitik. - [Berlin] : Springer Gabler, ISSN 2364-3943, Bd. 45 (2020), 3, S. 295-317

Der Deal der beiden größten deutschen Energielieferanten RWE und E.ON zum Tausch verschiedener Geschäftseinheiten, welcher Mitte September 2019 genehmigt wurde, wird den deutschen Energiemarkt wesentlich umstrukturieren und sowohl im Bereich Erzeugung als auch im Vertrieb zu jeweils einem dominanten Wettbewerber führen. E.ON wird dabei durch die Übernahme der innogy Geschäfte im Bereich des klassischen Energievertriebs und der Ladeinfrastruktur für Elektrofahrzeuge wesentliche Wettbewerbsvorteile erhalten. Dazu zählt unter anderem der Zugang zu einer Vielzahl an Messstellen und damit Datensätzen im Bereich des Haushalts- und Geschäftskundenvertriebs. Die Auswertung und Nutzung dieser Datensätze eröffnet dem zusammengeschlossenen Unternehmen neue Geschäftsfelder, aber auch Möglichkeiten die dominante Stellung auf dem Markt zu missbrauchen. Dieser Beitrag widmet sich den potenziellen Auswirkungen der innogy-Übernahme durch E.ON in den Bereichen klassischer Vertrieb und EMobilität, in welchen die angesprochenen Aspekte der Datenökonomik eine wesentliche Rolle spielen. Des Weiteren werden die Auswirkungen der Marktumstrukturierung auf den Konzessionsmarkt betrachtet und die politökonomische Dimension des Zusammenschlusses erläutert. Wir schließen mit einer Kurzanalyse der Erlaubnisentscheidung und der damit verbundenen Auflagen und kommen zu dem Schluss, dass diese nicht geeignet sind, die erheblichen anti-kompetitiven Auswirkungen des Zusammenschlusses einzudämmen oder zu verhindern.



https://doi.org/10.1007/s41025-020-00185-1
Zhang, Chenglin; Xu, Yang; He, Kaiming; Dong, Yulian; Zhao, Huaping; Medenbach, Lukas; Wu, Yuhan; Balducci, Andrea; Hannappel, Thomas; Lei, Yong;
Polyimide@Ketjenblack composite: a porous organic cathode for fast rechargeable potassium-ion batteries. - In: Small. - Weinheim : Wiley-VCH, ISSN 1613-6829, Volume 16 (2020), issue 38, 2002953, Seite 1-8

Potassium-ion batteries (PIBs) configurated by organic electrodes have been identified as a promising alternative to lithium-ion batteries. Here, a porous organic PolyimideKetjenblack is demonstrated in PIBs as a cathode, which exhibits excellent performance with a large reversible capacity (143 mAh g^-1 at 100 mA g^-1), high rate capability (125 and 105 mAh g^-1 at 1000 and 5000 mA g^-1), and long cycling stability (76% capacity retention at 2000 mA g^-1 over 1000 cycles). The domination of fast capacitive-like reaction kinetics is verified, which benefits from the porous structure synthesized using in situ polymerization. Moreover, a renewable and low-cost full cell is demonstrated with superior rate behavior (106 mAh g^-1 at 3200 mA g^-1). This work proposes a strategy to design polymer electrodes for high-performance organic PIBs.



https://doi.org/10.1002/smll.202002953
Xu, Rui; Du, Lei; Adekoya, David; Zhang, Gaixia; Zhang, Shanqing; Sun, Shuhui; Lei, Yong;
Well-defined nanostructures for electrochemical energy conversion and storage. - In: Advanced energy materials. - Weinheim : Wiley-VCH, ISSN 1614-6840, (2020), 2001537, insges. 53 S.
- First published: 16 June 2020

Electrochemical energy conversion and storage play crucial roles in meeting the increasing demand for renewable, portable, and affordable power supplies for society. The rapid development of nanostructured materials provides an alternative route by virtue of their unique and promising effects emerging at nanoscale. In addition to finding advanced materials, structure design and engineering of electrodes improves the electrochemical performance and the resultant commercial competitivity. Regarding the structural engineering, controlling the geometrical parameters (i.e., size, shape, hetero-architecture, and spatial arrangement) of nanostructures and thus forming well-defined nanostructure (WDN) electrodes have been the central aspects of investigations and practical applications. This review discusses the fundamental aspects and concept of WDNs for energy conversion and storage, with a strong emphasis on illuminating the relationship between the structural characteristics and the resultant electrochemical superiorities. Key strategies for actualizing well-defined features in nanostructures are summarized. Electrocatalysis and photoelectrocatalysis (for energy conversion) as well as metal-ion batteries and supercapacitors (for energy storage) are selected to illustrate the superiorities of WDNs in electrochemical reactions and charge carrier transportation. Finally, conclusions and perspectives regarding future research, development, and applications of WDNs are discussed.



https://doi.org/10.1002/aenm.202001537
Schweser, Thomas; Stiebitz, Michael;
Partitions of hypergraphs under variable degeneracy constraints. - In: Journal of graph theory. - New York, NY [u.a.] : Wiley, ISSN 1097-0118, (2020), S. 1-27
- First published: 05 May 2020

https://doi.org/10.1002/jgt.22575
Gruia, Violeta-Tincuta; Ispas, Adriana; Efimov, Igor; Bund, Andreas;
Cation exchange behavior during the redox switching of poly (3,4-ethylenedioxythiophene) films. - In: Journal of solid state electrochemistry : current research and development in science and technology.. - Berlin : Springer, ISSN 1433-0768, Bd. 24 (2020), 11/12, S. 3231-3244

Poly (3,4-ethylenedioxythiophene), PEDOT, films were synthesized at room temperature by potentiodynamic and potentiostatic step deposition in aqueous solutions containing EDOT monomer and LiClO4. In some solutions, the effect of small amounts of sodium dodecylsulfate, SDS, on the polymerization rate of EDOT and on the stiffness of the obtained PEDOT film was studied. The obtained PEDOT films were transferred in aqueous solutions containing cations with different molar mass, such as H+, Li+, Na+, K+, and Cs+. The apparent molar masses of the exchanged species during potentiodynamic experiments were determined by in situ microgravimetry. These measurements underlined the importance of the electrolyte chosen for electropolymerization process. It is known that SDS anions can be trapped inside the polymer layer during electropolymerization, providing them with a cation exchange behavior. However, even if the PEDOT films were deposited from an electrolyte without SDS, they still acted as cation exchangers.



https://doi.org/10.1007/s10008-020-04809-6
Semper, Sebastian; Döbereiner, Michael; Pawar, Sankalp; Landmann, Markus; Del Galdo, Giovanni;
eadf: representation of far-field antenna responses in Python. - In: SoftwareX. - Amsterdam [u.a.] : Elsevier, ISSN 2352-7110, Bd. 12 (2020), 100583, S. 1-6

https://doi.org/10.1016/j.softx.2020.100583
Song, Xinya; Cai, Hui; Jiang, Teng; Sennewald, Tom; Kircheis, Jan; Schlegel, Steffen; Noris, L.; Benzetta, Y.; Westermann, Dirk;
Research on performance of real-time simulation based on inverter-dominated power grid. - In: IEEE access. - New York, NY : IEEE, ISSN 2169-3536, Bd. 8 (2020), insges. 17 S.
- Early Access

https://doi.org/10.1109/ACCESS.2020.3016177
Kuznietsova, Halyna; Dziubenko, Natalia; Herheliuk, Tetiana; Prylutskyy, Yuriy; Täuscher, Eric; Ritter, Uwe; Scharff, Peter;
Water-soluble pristine C60 fullerene inhibits liver alterations associated with hepatocellular carcinoma in rat. - In: Pharmaceutics. - Basel : MDPI, ISSN 1999-4923, Volume 12 (2020), issue 9, 794, Seite 1-20
- Richtiger Name des Verfassers: Eric Täuscher

https://doi.org/10.3390/pharmaceutics12090794
Schweitzer, Dietrich; Haueisen, Jens; Brauer, Jakob Lauritz; Hammer, Martin; Klemm, Matthias;
Comparison of algorithms to suppress artifacts from the natural lens in fluorescence lifetime imaging ophthalmoscopy (FLIO). - In: Biomedical optics express. - Washington, DC : OSA, ISSN 2156-7085, Bd. 11 (2020), 10, S. 5586-5602

https://doi.org/10.1364/BOE.400059
Schricker, Klaus; Ganß, Martin; Könke, Carsten; Bergmann, Jean Pierre;
Feasibility study of using integrated fiber optical sensors to monitor laser-assisted metal-polymer joining. - In: Welding in the world : the international journal of materials joining.. - Berlin : Springer, ISSN 1878-6669, Bd. 64 (2020), 9, S. 1565-1578

The possibilities and challenges of using fiber optical sensors to monitor the laser-assisted joining of metal-polymer joints have been described in this article. Fundamental investigation proves the basic suitability of the measuring method for this application and studies the effect of essential influencing variables of the joining process - e.g., the clamping force - on the resulting sensor signals. In addition, the strain state (because of the process temperature and shrinkage of the polymer) of the parts to be joined can be traced as a function of the joining partners, the process parameters, and the material thicknesses. It is shown that the fiber optical method is suitable for process monitoring directly in the joining zone of metal-polymer hybrids and providing a tool for detailed strain measurements in the joint zone during subsequent component testing.



https://doi.org/10.1007/s40194-020-00942-y
Köhler, Michael; Beetz, Nancy; Günther, Mike; Möller, Frances; Schüler, Tim; Cao, Jialan;
Microbial community types and signature-like soil bacterial patterns from fortified prehistoric hills of Thuringia (Germany). - In: Community ecology : CE ; interdisciplinary journal reporting progress in community and population studies.. - Budapest : Akadémiai Kiadó, ISSN 1588-2756, Bd. 21 (2020), 2, S. 107-120

16S rRNA profiling has been applied for the investigation of bacterial communities of surface soil samples from forest-covered areas of ten prehistorical ramparts from different parts of Thuringia. Besides the majority bacterial types that are present in all samples, there could be identified bacteria that are highly abundant in some places and absent or low abundant in others. These differences are mainly related to the acidity of substrate and distinguish the communities of lime stone hills from soils of sand/quartzite and basalt hills. Minority components of bacterial communities show partially large differences that cannot be explained by the pH of the soil or incidental effects, only. They reflect certain relations between the communities of different places and could be regarded as a kind of signature-like patterns. Such relations had also been found in a comparison of the data from ramparts with formerly studied 16S rRNA profiling from an iron-age burial field. The observations are supporting the idea that a part of the components of bacterial communities from soil samples reflect their ecological history and can be understood as the "ecological memory" of a place. Probably such memory effects can date back to prehistoric times and might assist in future interpretations of archaeological findings on the prehistoric use of a place, on the one hand. On the other hand, the genetic profiling of soils of prehistoric places contributes to the evaluation of anthropogenic effects on the development of local soil bacterial diversity.



https://doi.org/10.1007/s42974-020-00017-4
Halm, Cynthia; Otto, Andreas; Stark, Tilman; Schaaf, Peter;
Ultrasonic excitation during press-fit joining of electrical contacts. - In: The international journal of advanced manufacturing technology. - London : Springer, ISSN 1433-3015, Bd. 109 (2020), 7/8, S. 2215-2220

https://doi.org/10.1007/s00170-020-05760-6
Budzinski, Oliver; Grebel, Thomas; Wolling, Jens; Zhang, Xijie;
Drivers of article processing charges in open access. - In: Scientometrics : an international journal for all quantitative aspects of the science of science, communication in science and science policy.. - Dordrecht [u.a.] : Springer Science + Business Media B.V., ISSN 1588-2861, Bd. 124 (2020), 3, S. 2185-2206

https://doi.org/10.1007/s11192-020-03578-3
Döring, Nicola;
How is the COVID-19 pandemic affecting our sexualities? An overview of the current media narratives and research hypotheses. - In: Archives of sexual behavior : the official publication of the International Academy of Sex Research.. - Dordrecht [u.a.] : Springer Science + Business Media B.V, ISSN 1573-2800, Bd. 49 (2020), 8, S. 2765-2778

https://doi.org/10.1007/s10508-020-01790-z
Döring, Nicola; Mohseni, Rohangis; Walter, Roberto;
Design, use, and effects of sex dolls and sex robots: scoping review. - In: Journal of medical internet research : international scientific journal for medical research, information and communication on the internet ; JMIR.. - Richmond, Va. : Healthcare World, ISSN 1438-8871, Vol. 22 (2020), no. 7, e18551, p. 1-28

https://doi.org/10.2196/18551
Jaziri, Nesrine; Boughamoura, Ayda; Müller, Jens; Mezghani, Brahim; Tounsi, Fares; Ismail, Mohammed;
A comprehensive review of thermoelectric generators: technologies and common applications. - In: Energy reports. - Amsterdam [u.a.] : Elsevier, ISSN 2352-4847, (2020), insges. 24 S.
- In Press, Corrected Proof

https://doi.org/10.1016/j.egyr.2019.12.011
Damanik, Ferdinandus Sarjanadi; Lange, Günther;
Influence of MWCNT coated nickel on the foaming behavior of MWCNT coated nickel reinforced AlMg4Si8 foam by powder metallurgy process. - In: Metals : open access journal.. - Basel : MDPI, ISSN 2075-4701, Volume 10 (2020), issue 7, 955, Seite 1-9

This research studies the effect of multi-wall carbon nanotube (MWCNT) coated nickel to foaming time on the foam expansion and the distribution of pore sizes MWCNT reinforced AlMg4Si8 foam composite by powder metallurgy process. To control interface reactivity and wettability between MWCNT and the metal matrix, nickel coating is carried out on the MWCNT surface. Significantly, different foaming behavior of the MWCNT coated nickel reinforced AlMg4Si8 was studied with a foaming time variation of 8 and 9 min. Digital images generated by the imaging system are used with the MATLAB R2017a algorithm to determine the porosity of the surface and the pore area of aluminum foam efficiently. The results can have important implications for processing MWCNT coated nickel reinforced aluminum alloy composites.



https://doi.org/10.3390/met10070955
Wang, Hongmei; Xiong, Jie; Cheng, Xing; Chen, Ge; Kups, Thomas; Wang, Dong; Schaaf, Peter;
Hydrogen-nitrogen plasma assisted synthesis of titanium dioxide with enhanced performance as anode for sodium ion batteries. - In: Scientific reports. - [London] : Macmillan Publishers Limited, part of Springer Nature, ISSN 2045-2322, Bd. 10 (2020), 11817, S. 1-12

https://doi.org/10.1038/s41598-020-68838-x
Blum, Maren-Christina; Hunold, Alexander; Solf, Benjamin; Klee, Sascha;
The effects of an ocular direct electrical stimulation on pattern-reversal electroretinogram. - In: Frontiers in neuroscience. - Lausanne : Frontiers Research Foundation, ISSN 1662-453X, Bd. 14 (2020), 588, S. 1-9

https://doi.org/10.3389/fnins.2020.00588
Pezoldt, Jörg; Cimalla, Volker;
Imprinting the polytype structure of silicon carbide by rapid thermal processing. - In: Crystals : open access journal.. - Basel : MDPI, ISSN 2073-4352, Volume 10 (2020), issue 6, 523, 21 Seiten

https://doi.org/10.3390/cryst10060523
Du Puits, Ronald; Bruecker, Christoph;
Fluctuations of the wall shear stress vector in a large-scale natural convection cell. - In: AIP Advances. - New York, NY : American Inst. of Physics, ISSN 2158-3226, Bd. 10 (2020), 7, S. 075105-1-075105-10

https://doi.org/10.1063/5.0006610
Gierth, Maximilian; Henckell, Philipp; Ali, Yarop; Scholl, Jonas; Bergmann, Jean Pierre;
Wire arc additive manufacturing (WAAM) of aluminium alloy AlMg5Mn with energy-reduced gas metal arc welding (GMAW). - In: Materials. - Basel : MDPI, ISSN 1996-1944, Volume 13 (2020), issue 12, 2671, Seite 1-22

https://doi.org/10.3390/ma13122671
Cao, Jialan; Richter, Felix; Kastl, Michael; Erdmann, Jonny; Burgold, Christian; Dittrich, David; Schneider, Steffen; Köhler, Michael; Groß, Gregor Alexander;
Droplet-based screening for the investigation of microbial nonlinear dose-response characteristics system, background, and examples. - In: Micromachines. - Basel : MDPI, ISSN 2072-666X, Volume 11 (2020), issue 6, 577, 19 Seiten

https://doi.org/10.3390/mi11060577
Cretu, Andrea; Mattea, Carlos; Stapf, Siegfried; Ardelean, Ioan;
The effect of silica fume and organosilane addition on the porosity of cement paste. - In: Molecules : a journal of synthetic chemistry and natural product chemistry.. - Basel : MDPI, ISSN 1420-3049, Volume 25 (2020), issue 8, 1762, Seite 1-9

https://doi.org/10.3390/molecules25081762
Henckell, Philipp; Gierth, Maximilian; Ali, Yarop; Reimann, Ralf; Bergmann, Jean Pierre;
Reduction of energy input in wire arc additive manufacturing (WAAM) with gas metal arc welding (GMAW). - In: Materials. - Basel : MDPI, ISSN 1996-1944, Volume 13 (2020), issue 11, 2491, Seite 1-18

https://doi.org/10.3390/ma13112491
Dutz, Silvio; Buske, Norbert; Landers, Joachim; Gräfe, Christine; Wende, Heiko; Clement, Joachim H.;
Biocompatible magnetic fluids of Co-doped iron oxide nanoparticles with tunable magnetic properties. - In: Nanomaterials : open access journal.. - Basel : MDPI, ISSN 2079-4991, Volume 10 (2020), issue 6, 1019, Seite 1-19

https://doi.org/10.3390/nano10061019
Kielpinski, Mark; Walther, Oliver; Cao, Jialan; Henkel, Thomas; Köhler, Michael; Groß, Gregor Alexander;
Microfluidic chamber design for controlled droplet expansion and coalescence. - In: Micromachines. - Basel : MDPI, ISSN 2072-666X, Volume 11 (2020), issue 4, 394, 16 Seiten

https://doi.org/10.3390/mi11040394
Naskovska, Kristina; Lau, Stephan; Korobkov, Alexey A.; Haueisen, Jens; Haardt, Martin;
Coupled CP decomposition of simultaneous MEG-EEG signals for differentiating oscillators during photic driving. - In: Frontiers in neuroscience. - Lausanne : Frontiers Research Foundation, ISSN 1662-453X, Bd. 14 (2020), 261, S. 1-18

https://doi.org/10.3389/fnins.2020.00261
Weise, Konstantin; Poßner, Lucas; Müller, Erik; Gast, Richard; Knösche, Thomas R.;
Pygpc: a sensitivity and uncertainty analysis toolbox for Python. - In: SoftwareX. - Amsterdam [u.a.] : Elsevier, ISSN 2352-7110, Bd. 11 (2020), 100450, S. 1-6

https://doi.org/10.1016/j.softx.2020.100450
Moller, Sebastian; Resagk, Christian; Cierpka, Christian;
On the application of neural networks for temperature field measurements using thermochromic liquid crystals. - In: Experiments in fluids : experimental methods and their applications to fluid flow ; research journal.. - Berlin : Springer, ISSN 1432-1114, Volume 61(2020), issue 4, article 111, 21 Seiten

This study presents an investigation regarding the applicability of neural networks for temperature measurements using thermochromic liquid crystals (TLCs) and discusses advantages as well as disadvantages of common calibration approaches. For the characterization of the measurement technique, the dependency of the color of the TLCs on the temperature as well as on the observation angle and, therefore, on the position within the field of view of a color camera is analyzed in detail. In order to consider the influence of the position within the field of view on the color, neural networks are applied for the calibration of the temperature measurements. In particular, the focus of this study is on analysis of the error of temperature measurement for different network configurations as well as training methods, yielding a mean absolute deviation and a mean standard deviation in the range of 0.1 K for instantaneous measurements. On the basis of a comparison of this standard deviation to that of two further calibration approaches, it is shown that neural networks are suited for temperature measurements via the color of TLCs. Finally, the applicability of this measurement technique is illustrated at an exemplary temperature measurement in a horizontal plane of a Rayleigh-Bénard cell with large aspect ratio, which clearly shows the emergence of convective flow patterns by means of the temperature field.



https://doi.org/10.1007/s00348-020-2943-7
Kröger, Jörg; Néel, Nicolas; Wehling, Tim O.; Brandbyge, Mads;
Local probes of graphene lattice dynamics. - In: Small methods. - Weinheim : WILEY-VCH Verlag GmbH & Co. KGaA, ISSN 2366-9608, Volume 4 (2020), issue 5, 1900817, 18 Seiten

https://doi.org/10.1002/smtd.201900817
Ghoshal, Sushanta; Mattea, Carlos; Denner, Paul; Stapf, Siegfried;
Effect of initial conformation on the starch biopolymer film formation studied by NMR. - In: Molecules : a journal of synthetic chemistry and natural product chemistry.. - Basel : MDPI, ISSN 1420-3049, Volume 25 (2020), issue 5, 1227, Seite 1-17

https://doi.org/10.3390/molecules25051227
Heinemann, David; Dutz, Silvio; Knabner, Steffen; Haueisen, Jens; Baumgarten, Daniel;
Camera calibration and orientation for PCB jet printing inspection. - In: SN applied sciences. - [Cham] : Springer International Publishing, ISSN 2523-3971, Volume 2 (2020), issue 3, article 322, 14 Seiten

https://doi.org/10.1007/s42452-020-2087-7
Kronfeld, Klaus-Peter; Ellinger, Thomas; Köhler, Michael;
Microfluidically prepared sensor particles for determination of chloride by fluorescence quenching of matrix-embedded lucigenin. - In: SN applied sciences. - [Cham] : Springer International Publishing, ISSN 2523-3971, Volume 2 (2020), issue 3, article 366, 8 Seiten

https://doi.org/10.1007/s42452-020-2155-z
Stauffenberg, Jaqueline; Durstewitz, Steve; Hofmann, Martin; Ivanov, Tzvetan; Holz, Mathias; Ehrhardt, Waleed; Riegel, Wolf-Ulrich; Zöllner, Jens-Peter; Manske, Eberhard; Rangelow, Ivo W.;
Determination of the mixing ratio of a flowing gas mixture with self-actuated microcantilevers. - In: Journal of sensors and sensor systems : JSSS.. - Göttingen : Copernicus Publ., ISSN 2194-878X, Bd. 9 (2020), 1, S. 71-78

https://doi.org/10.5194/jsss-9-71-2020
Leimbach, Martin; Tschaar, Christoph; Schmidt, Udo; Bund, Andreas;
Low-frequency pulse plating for tailoring the optical appearance of chromium layers for decorative applications. - In: Journal of applied electrochemistry. - Dordrecht [u.a.] : Springer Science + Business Media B.V, ISSN 1572-8838, Bd. 50 (2020), 4, S. 489-499

https://doi.org/10.1007/s10800-020-01406-3
Yan, Chengzhan; Zhao, Huaping; Li, Jun; Jin, Huile; Liu, Long; Wu, Wanyi; Wang, Jichang; Lei, Yong; Wang, Shun;
Mild-temperature solution-assisted encapsulation of phosphorus into ZIF-8 derived porous carbon as lithium-ion battery anode. - In: Small. - Weinheim : Wiley-VCH, ISSN 1613-6829, Volume 16 (2020), issue 11, 1907141, Seite 1-7

https://doi.org/10.1002/smll.201907141
Krey, Maximilian; Hähnlein, Bernd; Tonisch, Katja; Krischok, Stefan; Töpfer, Hannes;
Automated parameter extraction of ScAlN MEMS devices using an extended Euler-Bernoulli beam theory. - In: Sensors. - Basel : MDPI, ISSN 1424-8220, Volume 20 (2020), issue 4, 1001, Seite 1-19

https://doi.org/10.3390/s20041001
Müller, Steffen; Wengefeld, Tim; Trinh, Thanh Quang; Aganian, Dustin; Eisenbach, Markus; Groß, Horst-Michael;
A multi-modal person perception framework for socially interactive mobile service robots. - In: Sensors. - Basel : MDPI, ISSN 1424-8220, Volume 20 (2020), issue 3, 722, Seite 1-18

https://doi.org/10.3390/s20030722
Bach, Norbert; Galvin, Peter;
A third dimension in the mirror? How senior managers design products and organizations. - In: Strategic change. - New York, NY : Wiley Interscience, ISSN 1099-1697, Bd. 29 (2020), 1, S. 25-33

https://doi.org/10.1002/jsc.2307
Janke, Mario; Kuschke, Tobias; Mäder, Patrick;
A definition-by-example approach and visual language for activity patterns in engineering disciplines. - In: PLOS ONE. - San Francisco, California, US : PLOS, ISSN 1932-6203, 15 (2020), 1, e0226877, Seite 1-28

https://doi.org/10.1371/journal.pone.0226877
Sauerteig, Philipp; Worthmann, Karl;
Towards multiobjective optimization and control of smart grids. - In: Optimal control, applications and methods. - New York, NY [u.a.] : Wiley, ISSN 1099-1514, Bd. 41 (2020), 1, S. 128-145

https://doi.org/10.1002/oca.2532
Böttcher, René; Ispas, Adriana; Bund, Andreas;
Anodic dissolution of aluminum and anodic passivation in [EMIm]Cl-based ionic liquids. - In: Electrochemistry communications. - Amsterdam [u.a.] : Elsevier Science, ISSN 1873-1902, Bd. 115 (2020), 106720, S. 1-6

https://doi.org/10.1016/j.elecom.2020.106720
Zeidis, Igor; Zimmermann, Klaus;
Dynamics of a four-wheeled mobile robot with Mecanum wheels. - In: ZAMM : journal of applied mathematics and mechanics.. - Berlin : Wiley-VCH, ISSN 1521-4001, Volume 99 (2019), issue 12, e201900173, 22 Seiten
- Editor's choice

https://doi.org/10.1002/zamm.201900173
Dupleich, Diego; Müller, Robert; Landmann, Markus; Shinwasusin, Ek-Amorn; Saito, Kentaro; Takada, Jun-ichi; Luo, Jian; Thomä, Reiner; Del Galdo, Giovanni;
Multi-band propagation and radio channel characterization in street canyon scenarios for 5G and beyond. - In: IEEE access : practical research, open solutions.. - New York, NY : IEEE, ISSN 2169-3536, Bd. 7 (2019), S. 160385-160396

https://doi.org/10.1109/ACCESS.2019.2948869
Freitag, Stefanie; Hunold, Alexander; Klemm, Matthias; Klee, Sascha; Link, Dietmar; Nagel, Edgar; Haueisen, Jens;
Pulsed electrical stimulation of the human eye enhances retinal vessel reaction to flickering light. - In: Frontiers in human neuroscience. - Lausanne : Frontiers Research Foundation, ISSN 1662-5161, Bd. 13 (2019), 371, S. 1-11

https://doi.org/10.3389/fnhum.2019.00371
Machts, René; Hunold, Alexander; Drebenstedt, Christian; Rock, Michael; Leu, Carsten; Haueisen, Jens;
Measurement and analysis of partial lightning currents in a head phantom. - In: PLOS ONE. - San Francisco, California, US : PLOS, ISSN 1932-6203, 14 (2019), 9, e0223133, Seite 1-22

https://doi.org/10.1371/journal.pone.0223133
Köhler, Michael; Kluitmann, Jonas; Knauer, Andrea;
Metal nano networks by potential-controlled in situ assembling of gold/silver nanoparticles. - In: ChemistryOpen : including thesis treasury.. - Weinheim : Wiley-VCH-Verl., ISSN 2191-1363, Bd. 8 (2019), 12, S. 1369-1374

https://doi.org/10.1002/open.201900231
Scharff, Moritz; Schorr, Philipp; Becker, Tatiana; Resagk, Christian; Alencastre Miranda, Jorge H.; Behn, Carsten;
An artificial vibrissa-like sensor for detection of flows. - In: Sensors. - Basel : MDPI, ISSN 1424-8220, Volume 19 (2019), issue 18, 3892, Seite 1-16

In nature, there are several examples of sophisticated sensory systems to sense flows, e.g., the vibrissae of mammals. Seals can detect the flow of their prey, and rats are able to perceive the flow of surrounding air. The vibrissae are arranged around muzzle of an animal. A vibrissa consists of two major components: a shaft (infector) and a follicle-sinus complex (receptor), whereby the base of the shaft is supported by the follicle-sinus complex. The vibrissa shaft collects and transmits stimuli, e.g., flows, while the follicle-sinus complex transduces them for further processing. Beside detecting flows, the animals can also recognize the size of an object or determine the surface texture. Here, the combination of these functionalities in a single sensory system serves as paragon for artificial tactile sensors. The detection of flows becomes important regarding the measurement of flow characteristics, e.g., velocity, as well as the influence of the sensor during the scanning of objects. These aspects are closely related to each other, but, how can the characteristics of flow be represented by the signals at the base of a vibrissa shaft or by an artificial vibrissa-like sensor respectively? In this work, the structure of a natural vibrissa shaft is simplified to a slender, cylindrical/tapered elastic beam. The model is analyzed in simulation and experiment in order to identify the necessary observables to evaluate flows based on the quasi-static large deflection of the sensor shaft inside a steady, non-uniform, laminar, in-compressible flow.



https://doi.org/10.3390/s19183892
Kirchhoff, Michael; Kerling, Philipp; Streitferdt, Detlef; Fengler, Wolfgang;
A real-time capable dynamic partial reconfiguration system for an application-specific soft-core processor. - In: International journal of reconfigurable computing. - New York, NY [u.a.] : Hindawi Publ. Corp., ISSN 1687-7209, Volume 2019, article ID 4723838, 14 pages

https://doi.org/10.1155/2019/4723838
Rochyadi-Reetz, Mira; Arlt, Dorothee; Wolling, Jens; Bräuer, Marco;
Explaining the media's framing of renewable energies: an international comparison. - In: Frontiers in Environmental Science. - Lausanne : Frontiers Media, ISSN 2296-665X, Volume 7 (2019), article 119, Seite 1-12

https://doi.org/10.3389/fenvs.2019.00119
Kaltwasser, Masha; Schmidt, Udo; Lösing, Lars; Biswas, Shantonu; Stauden, Thomas; Bund, Andreas; Jacobs, Heiko O.;
Fluidic self-assembly on electroplated multilayer solder bumps with tailored transformation imprinted melting points. - In: Scientific reports. - [London] : Macmillan Publishers Limited, part of Springer Nature, ISSN 2045-2322, Bd. 9 (2019), 11325, insges. 8 S.

https://doi.org/10.1038/s41598-019-47690-8
Graichen, Uwe; Eichardt, Roland; Haueisen, Jens;
SpharaPy: a Python toolbox for spatial harmonic analysis of non-uniformly sampled data. - In: SoftwareX. - Amsterdam [u.a.] : Elsevier, ISSN 2352-7110, Bd. 10 (2019), 100289, S. 1-7

https://doi.org/10.1016/j.softx.2019.100289
Cao, Hao; Hopfgarten, Siegbert; Ostfeld, Avi; Salomons, Elad; Li, Pu;
Simultaneous sensor placement and pressure reducing valve localization for pressure control of water distribution systems. - In: Water. - Basel : MDPI, ISSN 2073-4441, Volume 11 (2019), issue 7, 1352, Seite 1-18

https://doi.org/10.3390/w11071352
Podkurkov, Ivan; Zhang, Jianshu; Nadeev, Adel Firadovich; Haardt, Martin;
Efficient multidimensional wideband parameter estimation for OFDM based joint radar and communication systems. - In: IEEE access : practical research, open solutions.. - New York, NY : IEEE, ISSN 2169-3536, Bd. 7 (2019), S. 112792-112808

https://doi.org/10.1109/ACCESS.2019.2927326
Singh, Jasmeet; Stephan, Ralf; Hein, Matthias;
Low-profile penta-band automotive patch antenna using horizontal stacking and corner feeding. - In: IEEE access : practical research, open solutions.. - New York, NY : IEEE, ISSN 2169-3536, Bd. 7 (2019), S. 74198-74205

https://doi.org/10.1109/ACCESS.2019.2919730
Rath, Michael; Mäder, Patrick;
The SEOSS 33 dataset - requirements, bug reports, code history, and trace links for entire projects. - In: Data in Brief. - Amsterdam [u.a.] : Elsevier, ISSN 2352-3409, Volume 25 (2019), article 104005, Seite 1-12

https://doi.org/10.1016/j.dib.2019.104005
Thomann, Jana; Eichfelder, Gabriele;
Numerical results for the multiobjective trust region algorithm MHT. - In: Data in Brief. - Amsterdam [u.a.] : Elsevier, ISSN 2352-3409, Volume 25 (2019), article 104103, Seite 1-18

https://doi.org/10.1016/j.dib.2019.104103
Häfner, Stephan; Käske, Martin; Thomä, Reiner;
On calibration and direction finding with uniform circular arrays. - In: International journal of antennas and propagation : IJAP.. - New York, NY : Hindawi, ISSN 1687-5877, (2019), Article ID 1523469, Seite 1-12

https://doi.org/10.1155/2019/1523469
Lenk, Leonhard; Mitschunas, Beate; Sinzinger, Stefan;
Zoom systems with tunable lenses and linear lens movements. - In: Journal of the European Optical Society. - London, ISSN 1990-2573, Volume 15 (2019), issue 1, article 9, Seite 1-10

Background: Classical zoom lenses are based on movements of sub-modules along the optical axis. Generally, a constant image plane position requires at least one nonlinear sub-module movement. This nonlinearity poses a challenge for the mechanical implementation. Tuneable lenses can change their focal length without moving along the optical axis. This offers the possibility of small system lengths. Since the focal range of tuneable lenses with significant aperture diameters is still limited, the use of tuneable optics in zoom lenses is usually restricted to miniaturized applications. Methods: To solve the challenge of the nonlinear movement in classical zoom lenses and the limitations of tuneable lenses for macroscopic applications we propose a combination of both concepts. The resulting 'Hybrid Zoom Lens' involves linear movements of sub modules as well as changing the focal length of a tuneable lens. The movements of the sub-modules and the focal length tuning of the lens are already determined by the collinear layout of the zoom lens. Therefore, we focus on collinear considerations and develop a method that allows a targeted choice of specific collinear layouts for our 'Hybrid zoom lenses'. Results: Based on examples and an experimental setup we demonstrate the feasibility of our approach. We apply the proposed method to examples of classical zoom lenses and zoom lenses based exclusively on tuneable lenses. Thereby we are able to show possible advantages of our 'Hybrid zoom lenses' over these widespread system types. Conclusions: We demonstrate important collinear considerations for the integration of tuneable lenses into a zoom lens. We show that the combination of classical zoom lens concepts with tuneable lenses offers the possibility to reach smaller system lengths for macroscopic zoom lenses while requiring only a small focal tuning range of the tuneable lens.



https://doi.org/10.1186/s41476-019-0106-3
Henckell, Philipp; Ali, Yarop; Metz, Andreas; Bergmann, Jean Pierre; Reimann, Jan;
In situ production of titanium aluminides during wire arc additive manufacturing with hot-wire assisted GMAW process. - In: Metals : open access journal.. - Basel : MDPI, ISSN 2075-4701, Volume 9 (2019), issue 5, 578, Seite 1-13

https://doi.org/10.3390/met9050578
Augustin, Silke; Fröhlich, Thomas;
Temperature dependence of dynamic parameters of contact thermometers. - In: Sensors. - Basel : MDPI, ISSN 1424-8220, Bd. 19 (2019), 10, 2299, insges. 9 S.

https://doi.org/10.3390/s19102299
Link, Steffen; Ivanov, Svetlozar; Dimitrova, Anna; Krischok, Stefan; Bund, Andreas;
Electrochemical deposition of silicon from a sulfolane-based electrolyte: effect of applied potential. - In: Electrochemistry communications. - Amsterdam [u.a.] : Elsevier Science, ISSN 1873-1902, Bd. 103 (2019), S. 7-11

https://doi.org/10.1016/j.elecom.2019.04.008
Ley, Sebastian; Schilling, Susanne; Fiser, Ondrej; Vrba, Jan; Sachs, Jürgen; Helbig, Marko;
Ultra-wideband temperature dependent dielectric spectroscopy of porcine tissue and blood in the microwave frequency range. - In: Sensors. - Basel : MDPI, ISSN 1424-8220, Bd. 19 (2019), 7, 1707, insges. 21 S.

https://doi.org/10.3390/s19071707
Solf, Benjamin; Schramm, Stefan; Link, Dietmar; Klee, Sascha;
Objective measurement of forward-scattered light in the human eye: an electrophysiological approach. - In: PLOS ONE. - San Francisco, California, US : PLOS, ISSN 1932-6203, 14 (2019), 4, e0214850, Seite 1-14

https://doi.org/10.1371/journal.pone.0214850
Linß, Sebastian; Henning, Stefan; Zentner, Lena;
Modeling and design of flexure hinge-based compliant mechanisms. - In: Kinematics : analysis and applications.. - London : InTechOpen, (2019), S. 1-24

A compliant mechanism gains its mobility fully or partially from the compliance of its elastically deformable parts rather than from conventional joints. Due to many advantages, in particular the smooth and repeatable motion, monolithic mechanisms with notch flexure hinges are state of the art in numerous precision engineering applications with required positioning accuracies in the low micrometer range. However, the deformation and especially motion behavior are complex and depend on the notch geometry. This complicates both the accurate modeling and purposeful design. Therefore, the chapter provides a survey of different methods for the general and simplified modeling of the elasto-kinematic properties of flexure hinges and compliant mechanisms for four hinge contours. Based on non-linear analytical calculations and FEM simulations, several guidelines like design graphs, design equations, design tools or a geometric scaling approach are presented. The obtained results are analytically and simulatively verified and show a good correlation. Using the example of a path-generating mechanism, it will be demonstrated that the suggested angle-based method for synthesizing a compliant mechanism with individually shaped hinges can be used to design high-precise and large-stroke compliant mechanisms. The approaches can be used for the accelerated synthesis of planar and spatial flexure hinge-based compliant mechanisms.



https://doi.org/10.5772/intechopen.85224
Berger, Priscila; Wolling, Jens;
They need more than technology-equipped schools: teachers' practice of fostering students' digital protective skills. - In: Media and Communication. - Basel : Librello Publishing House, Bd. 7 (2019), 2, S. 137-147

https://doi.org/10.17645/mac.v7i2.1902
Berlt, Philipp; Jäger, Lisa; Schwind, Andreas; Wollenschläger, Frank; Bornkessel, Christian; Hein, Matthias;
Over-the-air testing of automotive antennas and wireless links in the installed state on the basis of LTE downlink communication parameters. - In: Advances in science, technology and engineering systems journal : (ASTESJ).. - Walnut CA, United States : ASTES Publishers, ISSN 2415-6698, Bd. 4 (2019), 1, S. 282-291

https://doi.org/10.25046/aj040127
Sewalkar, Parag; Seitz, Jochen;
Vehicle-to-Pedestrian communication for vulnerable road users: survey, design considerations, and challenges. - In: Sensors. - Basel : MDPI, ISSN 1424-8220, Bd. 19 (2019), 2, 358, insges. 18 S.

https://doi.org/10.3390/s19020358
Klemm, Matthias; Sauer, Lydia; Klee, Sascha; Link, Dietmar; Peters, Sven; Hammer, Martin; Schweitzer, Dietrich; Haueisen, Jens;
Bleaching effects and fluorescence lifetime imaging ophthalmoscopy. - In: Biomedical optics express. - Washington, DC : OSA, ISSN 2156-7085, Bd. 10 (2019), 3, S. 1446-1461

https://doi.org/10.1364/BOE.10.001446
Seeland, Marco; Rzanny, Michael Carsten; Boho, David; Wäldchen, Jana; Mäder, Patrick;
Image-based classification of plant genus and family for trained and untrained plant species. - In: BMC bioinformatics. - London : BioMed Central, ISSN 1471-2105, Bd. 20 (2019), (3. Jan.), Article 4, insges. 13 S.

https://doi.org/10.1186/s12859-018-2474-x
Wuttke, Heinz-Dietrich; Parkhomenko, Anzhelika; Tulenkov, Artem; Tabunshchyk, Galyna; Parkhomenko, Andriy; Henke, Karsten;
The remote experimentation as the practical-oriented basis of inclusive engineering education. - In: International journal of online engineering : IJOE.. - Kassel : Kassel Univ. Press, ISSN 1861-2121, Bd. 15 (2019), 5, S. 4-17

https://doi.org/10.3991/ijoe.v15i05.9752
Henning, Stefan; Linß, Sebastian; Zentner, Lena;
detasFLEX - a computational design tool for the analysis of various notch flexure hinges based on non-linear modeling. - In: Mechanical sciences : MS ; an open access journal for theoretical and applied mechanics.. - Göttingen : Copernicus Publ., ISSN 2191-916X, Bd. 9 (2018), 2, S. 389-404

A novel computational design tool to calculate the elasto-kinematic flexure hinge properties is presented. Four hinge contours are implemented. It is shown, that FEM results correlate well with the analytical design tool results. For a given deflection angle of 10˚ and a corner-filleted contour, the deviations of the bending stiffness are between 0.1 % and 9.4 %. The design tool can be beneficial for the accelerated and systematic synthesis of compliant mechanisms with optimized flexure hinges.



https://doi.org/10.5194/ms-9-389-2018
Krug, Silvia; Aumüller, Matthias; Seitz, Jochen;
Hybrid scheme to enable DTN routing protocols to efficiently exploit stable MANET contacts. - In: EURASIP journal on wireless communications and networking : EURASIP JWCN.. - Heidelberg : Springer, ISSN 1687-1499, (2018), 237, insges. 13 S.

https://doi.org/10.1186/s13638-018-1248-5
Sousa, Marcelo N.; deThomä, Reiner;
Enhancement of localization systems in NLOS urban scenario with multipath ray tracing fingerprints and machine learning. - In: Sensors. - Basel : MDPI, ISSN 1424-8220, Bd. 18 (2018), 11, 4073, insges. 30 S.

https://doi.org/10.3390/s18114073
Mattern, Anne; Sandig, Romy; Joos, Alexander; Löwa, Norbert; Kosch, Olaf; Weidner, Andreas; Wells, James; Wiekhorst, Frank; Dutz, Silvio;
Magnetic nanoparticle-gel materials for development of joint phantoms for MPI and MRI. - In: International journal on magnetic particle imaging : IJMPI.. - Lübeck : Infinite Science Publishing, ISSN 2365-9033, Bd. 4 (2018), 2, Article ID 1811001, insges. 5 S.

https://doi.org/10.18416/ijmpi.2018.1811001
Bartsch, Heike; Peipmann, Ralf; Klett, Maren; Brauer, Dana; Schober, Andreas; Müller, Jens;
PEDOT coated thick film electrodes for in situ detection of cell adhesion in cell cultures. - In: Biosensors : open access journal.. - Basel : MDPI, ISSN 2079-6374, Bd. 8 (2018), 4, 105, insges. 13 S.

https://doi.org/10.3390/bios8040105
Shirichian, Mehdi; Chamaani, Somayyeh; Akbarpour, Alireza; Del Galdo, Giovanni;
Analysis and design of broadband simultaneous wireless information and power transfer (SWIPT) system considering rectifier effect. - In: Energies : open-access journal of related scientific research, technology development and studies in policy and management.. - Basel : MDPI, ISSN 1996-1073, Bd. 11 (2018), 9, 2387, insges. 18 S.

https://doi.org/10.3390/en11092387
Steidl, Matthias; Wu, Mingjian; Peh, Katharina; Kleinschmidt, Peter; Spiecker, Erdmann; Hannappel, Thomas;
Impact of N incorporation on VLS growth of GaP(N) nanowires utilizing UDMH. - In: Nanoscale research letters : NRL.. - New York, NY [u.a.] : Springer, ISSN 1556-276X, Bd. 13 (2018), Article 417, insges. 9 S.

https://doi.org/10.1186/s11671-018-2833-6
Bartsch, Heike; Grieseler, Rolf; Mánuel, Jose; Pezoldt, Jörg; Müller, Jens;
Magnetron sputtered AlN layers on LTCC multilayer and silicon substrates. - In: Coatings : open access journal.. - Basel : MDPI, ISSN 2079-6412, Bd. 8 (2018), 8, 289, insges. 19 S.

https://doi.org/10.3390/coatings8080289
Rieger, Steffen; Klee, Sascha; Baumgarten, Daniel;
Experimental characterization and correlation of Mayer waves in retinal vessel diameter and arterial blood pressure. - In: Frontiers in physiology. - Lausanne : Frontiers Research Foundation, ISSN 1664-042X, Bd. 9 (2018), Article 892, insges. 12 S.

https://doi.org/10.3389/fphys.2018.00892
Stegner, Johannes; Gropp, Sebastian; Podoskin, Dmitry; Stehr, Uwe; Hoffmann, Martin; Hein, Matthias;
An analytical temperature-dependent design model for contour-mode MEMS resonators and oscillators verified by measurements. - In: Sensors. - Basel : MDPI, ISSN 1424-8220, Bd. 18 (2018), 7, 2159, insges. 21 S.

https://doi.org/10.3390/s18072159
Sachs, Jürgen; Ley, Sebastian; Just, Thomas; Chamaani, Somayyeh; Helbig, Marko;
Differential ultra-wideband microwave imaging: principle application challenges. - In: Sensors. - Basel : MDPI, ISSN 1424-8220, Bd. 18 (2018), 7, 2136, insges. 32 S.

https://doi.org/10.3390/s18072136
Wittich, Hans Christian; Seeland, Marco; Wäldchen, Jana; Rzanny, Michael Carsten; Mäder, Patrick;
Recommending plant taxa for supporting on-site species identification. - In: BMC bioinformatics. - London : BioMed Central, ISSN 1471-2105, Bd. 19 (2018), (30. Mai), Article 190, insges. 17 S.

https://doi.org/10.1186/s12859-018-2201-7
Pandey, Ambrish; Scheel, Janet D.; Schumacher, Jörg;
Turbulent superstructures in Rayleigh-Bénard convection. - In: Nature Communications. - [London] : Nature Publishing Group UK, ISSN 2041-1723, Bd. 9 (2018), (29. Mai), Article number 2118, insges. 11 S.

https://doi.org/10.1038/s41467-018-04478-0
Singh, Sukhdeep; Mai, Patrick; Borowiec, Justyna; Zhang, Yixin; Lei, Yong; Schober, Andreas;
Donor-acceptor Stenhouse adduct-grafted polycarbonate surfaces: selectivity of the reaction for secondary amine on surface. - In: Royal Society Open Science. - London : Royal Soc. Publ., ISSN 2054-5703, Volume 5 (2018), issue 7, 180207,Seite 1-7

https://doi.org/10.1098/rsos.180207
Wunder, Sophia; Hunold, Alexander; Fiedler, Patrique; Schlegelmilch, Falk; Schellhorn, Klaus; Haueisen, Jens;
Novel bifunctional cap for simultaneous electroencephalography and transcranial electrical stimulation. - In: Scientific reports. - [London] : Macmillan Publishers Limited, part of Springer Nature, ISSN 2045-2322, Bd. 8 (2018), 7259, insges. 11 S.

https://doi.org/10.1038/s41598-018-25562-x
Silge, Martin; Sattel, Thomas;
Design of contactlessly powered and piezoelectrically actuated tools for non-resonant vibration assisted milling. - In: Actuators : open access journal.. - Basel : MDPI, ISSN 2076-0825, Bd. 7 (2018), 2, 19, insges. 17 S.

https://doi.org/10.3390/act7020019
Bartsch, Heike; Fernekorn, Uta; Müller, Jens; Schober, Andreas; Witte, Hartmut;
Functionalized thick film impedance sensors for use in in vitro cell culture. - In: Biosensors : open access journal.. - Basel : MDPI, ISSN 2079-6374, Bd. 8 (2018), 2, 37, insges. 9 S.

https://doi.org/10.3390/bios8020037
Wang, Dong; Schaaf, Peter;
Plasmonic nanosponges. - In: Advances in Physics: X : APX.. - Abingdon : Taylor & Francis Group, ISSN 2374-6149, Bd. 3 (2018), 1, Article: 1456361, insges. 19 S.

Gold nanosponges, or nanoporous gold nanoparticles, possess a percolated nanoporous structure over the entire nanoparticles. The optical and plasmonic properties of gold nanosponges and its related hybrid nanosponges are very fascinating due to the unique structural feature, and are controllable and tuneable in a large scope by changing the structural parameters like pore/ligament size, porosity, particle size, particles form, and hybrid structure. The nanosponges show the strong polarization dependence and multiple resonances behavior. Besides, the nanosponges exhibit a significantly higher local field enhancement than the solid nanoparticles. Strong nonlinear optical properties are confirmed by their high-order photoemission behavior, whereby long-lived plasmon modes are also clearly observed. All this is very important and relevant for the applications in enhanced Raman scattering, fluorescence manipulation, sensing, and nonlinear photonics.



https://doi.org/10.1080/23746149.2018.1456361
Michaels, Anne; Grüning, Michael;
The impact of corporate identity on corporate social responsibility disclosure. - In: International journal of corporate social responsibility : CSR, sustainabilitiy, ethics and governance.. - [Cham] : Springer International Publishing, ISSN 2366-0074, Bd. 3 (2018), 3, S. 1-13

Corporate social responsibility (CSR) is of increasing importance for the long-term success of corporations. Extending existing literature this paper explores corporate identity as important determinant for CSR disclosure. The relationship was examined based on 498 German companies that provided English language CSR reports and responded to a company survey measuring CSR-oriented corporate identity. CSR disclosure has been analyzed with an automated content analysis technique using artificial intelligence. Results indicate that value chain and future-oriented dimensions, which were more pronounced in mature CSR concepts, foster CSR disclosure, while introversive corporate identity dimensions that were strong in low level CSR concepts hinder the release of CSR information. The paper shows that a tradition of social responsibility and values results into a low perceived need for legitimacy and outwards communication. The findings support the view that that a combination of voluntary disclosure theory and legitimacy theory is necessary to explain the drivers and constraints of CSR disclosure.



https://doi.org/10.1186/s40991-018-0028-1
Schreiber, Viktor; Ivanov, Valentin; Augsburg, Klaus; Noack, Matti; Shyrokau, Barys; Sandu, Corina; Schalk Els, Pieter;
Shared and distributed X-in-the-Loop tests for automotive systems: feasibility study. - In: IEEE access : practical research, open solutions.. - New York, NY : IEEE, ISSN 2169-3536, Bd. 6 (2018), S. 4017-4026

https://doi.org/10.1109/ACCESS.2017.2789020
Regensburg, Anna; Schürer, René; Weigl, Markus; Bergmann, Jean Pierre;
Influence of pin length and electrochemical platings on the mechanical strength and macroscopic defect formation in stationary shoulder friction stir welding of aluminium to copper. - In: Metals : open access journal.. - Basel : MDPI, ISSN 2075-4701, Bd. 8 (2018), 2, 85, insges. 9 S.

https://doi.org/10.3390/met8020085
Ricciardi, Vincenzo; Augsburg, Klaus; Gramstat, Sebastian; Schreiber, Viktor; Ivanov, Valentin;
Survey on modelling and techniques for friction estimation in automotive brakes. - In: Applied Sciences : open access journal.. - Basel : MDPI, ISSN 2076-3417, Volume 7 (2017), issue 9, 873, 23 Seiten

http://dx.doi.org/10.3390/app7090873
Henke, Karsten; Fäth, Tobias; Hutschenreuter, René; Wuttke, Heinz-Dietrich;
Gift - an integrated development and training system for finite state machine based approaches. - In: International journal of online engineering : IJOE.. - Kassel : Kassel Univ. Press, ISSN 1861-2121, Bd. 13 (2017), 8, S. 147-162

https://doi.org/10.3991/ijoe.v13i08.7387
Pöschl, Sandra;
Virtual reality training for public speaking - a QUEST-VR framework validation. - In: Frontiers in ICT. - Lausanne : Frontiers Media, ISSN 2297-198X, Bd. 4 (2017), Article 13 (19. Jun.), insges. 13 S.

https://doi.org/10.3389/fict.2017.00013
Néel, Nicolas; Kröger, Jörg;
Template effect of the graphene Moiré lattice on phthalocyanine assembly. - In: Molecules : a journal of synthetic chemistry and natural product chemistry.. - Basel : MDPI, ISSN 1420-3049, Volume 22 (2017), issue 5, 731, Seite 1-9

https://doi.org/10.3390/molecules22050731
Mohagheghi, Erfan; Gabash, Aouss; Li, Pu;
A framework for real-time optimal power flow under wind energy penetration. - In: Energies : open-access journal of related scientific research, technology development and studies in policy and management.. - Basel : MDPI, ISSN 1996-1073, Bd. 10 (2017), 4, 535, insges. 28 S.

https://doi.org/10.3390/en10040535
Ejaz, Waqas; Bräuer, Marco; Wolling, Jens;
Subjective evaluation of media content as a moderator of media effects on European identity: mere exposure and the hostile media phenomenon. - In: Media and Communication. - Basel : Librello Publishing House, Bd. 5 (2017), 2, S. 41-52

This paper posits that the concept of European identity is an important indicator of the legitimacy of the European Union (EU). It further assumes that the exposure to EU related media content can influence the feeling of European identity. In order to verify this assumption, we combined the mere-exposure-theory and the hostile media phenomenon. We assume that these theoretical concepts could help to understand the influence of media on peoples levels of attachment to the EU. Regression analyses are performed on secondary data that were collected in a Eurobarometer survey in 2013. Our findings revealed that media exposure affected the respondents' identification with Europe, as well as the modifications of this effect based on their assessments of EU media coverage. The results of the current study not only validate assumptions about the mere-exposure effects on identity but also confirm the theoretical assumption that perceived hostility reduces such effects, whereas exposure to information that is perceived as neutral promotes the effects of media exposure on the feeling of European identity.



https://doi.org/10.17645/mac.v5i2.885
Linß, Sebastian; Schorr, Philipp; Zentner, Lena;
General design equations for the rotational stiffness, maximal angular deflection and rotational precision of various notch flexure hinges. - In: Mechanical sciences : MS ; an open access journal for theoretical and applied mechanics.. - Göttingen : Copernicus Publ., ISSN 2191-916X, Bd. 8 (2017), 1, S. 29-49

Notch flexure hinges are often used as revolute joints in high-precise compliant mechanisms, but their contour-dependent deformation and motion behaviour is currently difficult to predict. This paper presents general design equations for the calculation of the rotational stiffness, maximal angular elastic deflection and rotational precision of various notch flexure hinges in dependence of the geometric hinge parameters. The novel equations are obtained on the basis of a non-linear analytical model for a moment and a transverse force loaded beam with a variable contour height. Four flexure hinge contours are investigated, the semi-circular, the corner-filleted, the elliptical, and the recently introduced bi-quadratic polynomial contour. Depending on the contour, the error of the calculated results is in the range of less than 2 % to less than 16 % for the suggested parameter range compared with the analytical solution. Finite elements method (FEM) and experimental results correlate well with the predictions based on the comparatively simple and concise design equations.



https://doi.org/10.5194/ms-8-29-2017
Seeland, Marco; Rzanny, Michael Carsten; Alaqraa, Nedal; Wäldchen, Jana; Mäder, Patrick;
Plant species classification using flower images - a comparative study of local feature representations. - In: PLOS ONE. - San Francisco, California, US : PLOS, ISSN 1932-6203, Bd. 12 (2017), 2, e0170629, insges. 29 S.

http://dx.doi.org/10.1371/journal.pone.0170629
Dutz, Silvio; Hayden, Mike E.; Häfeli, Urs O.;
Fractionation of magnetic microspheres in a microfluidic spiral: interplay between magnetic and hydrodynamic forces. - In: PLOS ONE. - San Francisco, California, US : PLOS, ISSN 1932-6203, Bd. 12 (2017), 1, e0169919, insges. 24 S.

http://dx.doi.org/10.1371/journal.pone.0169919
Aksjonov, Andrei; Augsburg, Klaus; Vodovozov, Valerij;
Design and simulation of the robust ABS and ESP fuzzy logic controller on the complex braking maneuvers. - In: Applied Sciences : open access journal.. - Basel : MDPI, ISSN 2076-3417, Volume 6 (2016), issue 12, 382, 18 Seiten

http://dx.doi.org/10.3390/app6120382
Schricker, Klaus; Stambke, Martin; Bergmann, Jean Pierre; Bräutigam, Kevin;
Laser-based joining of thermoplastics to metals: influence of varied ambient conditions on joint performance and microstructure. - In: International journal of polymer science. - New York, NY : Hindawi, ISSN 1687-9430, (2016), Article ID 5301081, insges. 9 S.

Laser-based joining of thermoplastics to metals shows a great potential for functional design especially in terms of lightweight constructions. In the joining process, the joining speed and the energy per unit length, respectively, show an influence on time-temperature profiles measured in the joining zone. The time-temperature profile affects the joining zone and consequently the joint behavior in mechanical testing. In the current investigation, the joining zone was characterized by the melting layer. Moreover, the mechanical properties of the joint by tensile shear testing and the fracture mode were investigated. Based on the results obtained, three sets of joining speeds/energies per unit length with different mechanical behaviors were selected for further investigations under varied ambient conditions. Thereby, the influence of outdoor weathering as well as aging above the glass transition temperature of the plastic part on the joints performance was compared with the nonaged joints.



http://dx.doi.org/10.1155/2016/5301081
Hotz, Thomas; Kelma, Florian; Wieditz, Johannes;
Non-asymptotic confidence sets for circular means. - In: Entropy : an international and interdisciplinary journal of entropy and information studies.. - Basel : MDPI, ISSN 1099-4300, Bd. 18 (2016), 10, 375, insges. 13 S.

http://dx.doi.org/10.3390/e18100375
Salchow, Christina; Strohmeier, Daniel; Klee, Sascha; Jannek, Dunja; Schiecke, Karin; Witte, Herbert; Nehorai, Arye; Haueisen, Jens;
Rod driven frequency entrainment and resonance phenomena. - In: Frontiers in human neuroscience. - Lausanne : Frontiers Research Foundation, ISSN 1662-5161, Bd. 10 (2016), 413, S. 1-12

http://dx.doi.org/10.3389/fnhum.2016.00413
Mansoor, Arfan; Streitferdt, Detlef; Hanif, Muhammad Kashif;
Goal model integration for tailoring product line development processes. - In: International Journal of Advanced Computer Science and Applications : IJACSA.. - New York, NY, ISSN 2156-5570, Bd. 7 (2016), 7, S. 618-623

http://dx.doi.org/10.14569/IJACSA.2016.070784
Klemm, Matthias; Blum, Johannes; Link, Dietmar; Hammer, Martin; Haueisen, Jens; Schweitzer, Dietrich;
Combination of confocal principle and aperture stop separation improves suppression of crystalline lens fluorescence in an eye model. - In: Biomedical optics express. - Washington, DC : OSA, ISSN 2156-7085, Bd. 7 (2016), 9, S. 3198-3210

http://dx.doi.org/10.1364/BOE.7.003198
Lau, Stephan; Petkovi´c, Bojana; Haueisen, Jens;
Optimal magnetic sensor vests for cardiac source imaging. - In: Sensors. - Basel : MDPI, ISSN 1424-8220, Bd. 16 (2016), 6, 754, insges. 17 S.

http://dx.doi.org/10.3390/s16060754
Gabash, Aouss; Li, Pu;
On variable reverse power flow-part II: an electricity market model considering wind station size and location. - In: Energies : open-access journal of related scientific research, technology development and studies in policy and management.. - Basel : MDPI, ISSN 1996-1073, Bd. 9 (2016), 4, 235, insges. 13 S.

http://dx.doi.org/10.3390/en9040235
Lau, Stephan; Güllmar, Daniel; Flemming, Lars; Grayden, David B.; Cook, Mark J.; Wolters, Carsten H.; Haueisen, Jens;
Skull defects in finite element head models for source reconstruction from magnetoencephalography signals. - In: Frontiers in neuroscience. - Lausanne : Frontiers Research Foundation, ISSN 1662-453X, Bd. 10 (2016), 141, S. 1-15

https://doi.org/10.3389/fnins.2016.00141
Herz, Andreas; Franz, Anna; Theska, Felix; Hentschel, Martin; Kups, Thomas; Wang, Dong; Schaaf, Peter;
Solid-state dewetting of single- and bilayer Au-W thin films: unraveling the role of individual layer thickness, stacking sequence and oxidation on morphology evolution. - In: AIP Advances. - New York, NY : American Inst. of Physics, ISSN 2158-3226, Bd. 6 (2016), 3, S. 035109, insges. 10 S.

http://dx.doi.org/10.1063/1.4944348
Gabash, Aouss; Li, Pu;
On variable reverse power flow-part I: active-reactive optimal power flow with reactive power of wind stations. - In: Energies : open-access journal of related scientific research, technology development and studies in policy and management.. - Basel : MDPI, ISSN 1996-1073, Bd. 9 (2016), 3, 121, insges. 12 S.

http://dx.doi.org/10.3390/en9030121
Füßl, Franz Felix; Streitferdt, Detlef; Shang, Weijia; Triebel, Anne;
Introducing a method for modeling knowledge bases in expert systems using the example of large software development projects. - In: International Journal of Advanced Computer Science and Applications : IJACSA.. - New York, NY, ISSN 2156-5570, Bd. 6.2015, 12, Paper 1, S. 1-7

Goal of this paper is to develop a meta-model, which provides the basis for developing highly scalable artificial intelligence systems that should be able to make autonomously decisions based on different dynamic and specific influences. An artificial neural network builds the entry point for developing a multi-layered human readable model that serves as knowledge base and can be used for further investigations in deductive and inductive reasoning. A graph-theoretical consideration gives a detailed view into the model structure. In addition to it the model is introduced using the example of large software development projects. The integration of Constraints and Deductive Reasoning Element Pruning are illustrated, which are required for executing deductive reasoning efficiently.



http://dx.doi.org/10.14569/IJACSA.2015.061201
Li, Pu; Vu, Quoc Dong
A simple method for identifying parameter correlations in partially observed linear dynamic models. - In: BMC systems biology. - London : BioMed Central, ISSN 1752-0509, Bd. 9.2015, 92 (14. Dez.), insges. 14 S.

http://dx.doi.org/10.1186/s12918-015-0234-3
Füßl, Franz Felix; Streitferdt, Detlef; Triebel, Anne
Modeling knowledge bases for automated decision making systems - a literature review. - In: International Journal of Advanced Computer Science and Applications : IJACSA.. - New York, NY, ISSN 2156-5570, Bd. 6 (2015), 9, S. 185-189

http://dx.doi.org/10.14569/IJACSA.2015.060925
Ivanov, Valentin; Savitski, Dzmitry;
Systematization of integrated motion control of ground vehicles. - In: IEEE access : practical research, open solutions.. - New York, NY : IEEE, ISSN 2169-3536, Bd. 3 (2015), S. 2080-2099

https://doi.org/10.1109/ACCESS.2015.2496108
Rothenberger, Liane; Müller, Kathrin;
Kategorisierung der von der Europäischen Union aufgelisteten terroristischen Gruppen gemäß ihrer Motive :
Categorizing terrorist entities listed by the European Union, according to terrorist groups' underlying motives. - In: Conflict & communication online. - Berlin : Regener, ISSN 1618-0747, Bd. 14 (2015), 2, S. 1-14

States and international organizations have compiled lists of a great variety of terrorist groups. The current European Union list includes 44 entities. This study analyzes the underlying motives of the terrorist organizations named in this list. In order to understand the groups' motivations and consequently be able to advise on methods of countering them with communication strategies, we employ a three-item typology provided by Waldmann (2001). The results show that only five of the 44 groups were religiously motivated to commit terrorism. Most of the groups (n=20) had nationalist-separatist motives, and 19 groups displayed social-revolutionary motives. Based on the respective motives, differing counter-terrorism strategies are proposed, e.g., developing rhetorical counter-narratives that address and reduce the groups' motivational and identity-generating characteristics.



https://www.db-thueringen.de/receive/dbt_mods_26732
Mansoor, Arfan; Streitferdt, Detlef; Füßl, Franz-Felix
Alternatives selection using GORE based on fuzzy numbers and TOPSIS. - In: Journal of software engineering and applications : JSEA.. - Irvine, Calif. : Scientific Research Publ., ISSN 1945-3124, Bd. 8 (2015), 7, S. 346-359

http://dx.doi.org/10.4236/jsea.2015.87035
Mansoor, Arfan; Streitferdt, Detlef; Füßl, Franz-Felix
Fuzzy based evaluation of software quality using quality models and goal models. - In: International Journal of Advanced Computer Science and Applications : IJACSA.. - New York, NY, ISSN 2156-5570, Bd. 6 (2015), 9, S. 265-273

http://dx.doi.org/10.14569/IJACSA.2015.060936
Klemm, Matthias; Schweitzer, Dietrich; Peters, Sven; Sauer, Lydia; Hammer, Martin; Haueisen, Jens;
FLIMX: a software package to determine and analyze the fluorescence lifetime in time-resolved fluorescence data from the human eye. - In: PLOS ONE. - San Francisco, California, US : PLOS, ISSN 1932-6203, Bd. 10 (2015), 7, e0131640, insges. 28 S.

http://dx.doi.org/10.1371/journal.pone.0131640
Wuttke, Heinz-Dietrich; Hamann, Marcus; Henke, Karsten;
Integration of remote and virtual laboratories in the educational process. - In: International journal of online engineering : IJOE.. - Kassel : Kassel Univ. Press, ISSN 1861-2121, Bd. 11 (2015), 3, S. 62-67
- This article is an extended and modified version of a paper presented at the International Conference on Remote Engineering & Virtual Instrumentation (REV2015), held in Bangkok, Thailand, 25 - 28 February 2015.

http://dx.doi.org/10.3991/ijoe.v11i3.4558
Hager, Markus; Seitz, Jochen; Waas, Thomas
Literature survey on recent progress in inter-vehicle communication simulations. - In: Journal of Transportation Technologies : JTTs.. - Irvine, Calif. : Scientific Research Publ. Inc., ISSN 2160-0481, Bd. 5 (2015), 3, S. 159-168

http://dx.doi.org/10.4236/jtts.2015.53015
Weidner, Andreas; Gräfe, Christine; Lühe, Moritz; Remmer, Hilke; Clement, Joachim H.; Eberbeck, Dietmar; Ludwig, Frank; Müller, Robert; Schacher, Felix H.; Dutz, Silvio
Preparation of core-shell hybrid materials by producing a protein corona around magnetic nanoparticles. - In: Nanoscale research letters : NRL.. - New York, NY [u.a.] : Springer, ISSN 1556-276X, Bd. 10.2015, 1, Article 282, insges. 11 S.

http://dx.doi.org/10.1186/s11671-015-0992-2
Graichen, Uwe; Eichardt, Roland; Fiedler, Patrique; Strohmeier, Daniel; Zanow, Frank; Haueisen, Jens;
SPHARA - a generalized spatial Fourier analysis for multi-sensor systems with non-uniformly arranged sensors: application to EEG. - In: PLOS ONE. - San Francisco, California, US : PLOS, ISSN 1932-6203, Bd. 10 (2015), 4, e0121741, insges. 22 S.

http://dx.doi.org/10.1371/journal.pone.0121741
Lauer, Kevin; Möller, Christian; Schulze, Dirk; Ahrens, Carsten
Identification of photoluminescence P line in indium doped silicon as In Si -Si i defect. - In: AIP Advances. - New York, NY : American Inst. of Physics, ISSN 2158-3226, Bd. 5 (2015), 1, S. 017101, insges. 11 S.

http://dx.doi.org/10.1063/1.4905066