A third dimension in the mirror? How senior managers design products and organizations. - In: Strategic change, ISSN 1099-1697, Bd. 29 (2020), 1, S. 25-33
https://doi.org/10.1002/jsc.2307
A definition-by-example approach and visual language for activity patterns in engineering disciplines. - In: PLOS ONE, ISSN 1932-6203, Bd. 15 (2020), 1, e0226877, insges. 28 S.
https://doi.org/10.1371/journal.pone.0226877
Towards multiobjective optimization and control of smart grids. - In: Optimal control, applications and methods, ISSN 1099-1514, Bd. 41 (2020), 1, S. 128-145
https://doi.org/10.1002/oca.2532
Dynamics of a four-wheeled mobile robot with Mecanum wheels. - In: ZAMM, ISSN 1521-4001, Volume 99 (2019), issue 12, e201900173, 22 Seiten
Editor's choice
https://doi.org/10.1002/zamm.201900173
Multi-band propagation and radio channel characterization in street canyon scenarios for 5G and beyond. - In: IEEE access, ISSN 2169-3536, Bd. 7 (2019), S. 160385-160396
https://doi.org/10.1109/ACCESS.2019.2948869
Pulsed electrical stimulation of the human eye enhances retinal vessel reaction to flickering light. - In: Frontiers in human neuroscience, ISSN 1662-5161, Bd. 13 (2019), 371, insges. 11 S.
https://doi.org/10.3389/fnhum.2019.00371
Measurement and analysis of partial lightning currents in a head phantom. - In: PLOS ONE, ISSN 1932-6203, Bd. 14 (2019), 9, e0223133, insges. 22 S.
https://doi.org/10.1371/journal.pone.0223133
Metal nano networks by potential-controlled in situ assembling of gold/silver nanoparticles. - In: ChemistryOpen, ISSN 2191-1363, Bd. 8 (2019), 12, S. 1369-1374
https://doi.org/10.1002/open.201900231
An artificial vibrissa-like sensor for detection of flows. - In: Sensors, ISSN 1424-8220, Bd. 19 (2019), 18, 3892, insges. 16 S.
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
A real-time capable dynamic partial reconfiguration system for an application-specific soft-core processor. - In: International journal of reconfigurable computing, ISSN 1687-7209, Volume 2019, article ID 4723838, 14 pages
https://doi.org/10.1155/2019/4723838
Explaining the media's framing of renewable energies: an international comparison. - In: Frontiers in Environmental Science, ISSN 2296-665X, Volume 7 (2019), article 119, Seite 1-12
https://doi.org/10.3389/fenvs.2019.00119
Fluidic self-assembly on electroplated multilayer solder bumps with tailored transformation imprinted melting points. - In: Scientific reports, ISSN 2045-2322, Bd. 9 (2019), 11325, S. 1-8
https://doi.org/10.1038/s41598-019-47690-8
SpharaPy: a Python toolbox for spatial harmonic analysis of non-uniformly sampled data. - In: SoftwareX, ISSN 2352-7110, Bd. 10 (2019), 100289, S. 1-7
https://doi.org/10.1016/j.softx.2019.100289
Simultaneous sensor placement and pressure reducing valve localization for pressure control of water distribution systems. - In: Water, ISSN 2073-4441, Volume 11 (2019), issue 7, 1352, Seite 1-18
https://doi.org/10.3390/w11071352
Efficient multidimensional wideband parameter estimation for OFDM based joint radar and communication systems. - In: IEEE access, ISSN 2169-3536, Bd. 7 (2019), S. 112792-112808
https://doi.org/10.1109/ACCESS.2019.2927326
Low-profile penta-band automotive patch antenna using horizontal stacking and corner feeding. - In: IEEE access, ISSN 2169-3536, Bd. 7 (2019), S. 74198-74205
https://doi.org/10.1109/ACCESS.2019.2919730
The SEOSS 33 dataset - requirements, bug reports, code history, and trace links for entire projects. - In: Data in Brief, ISSN 2352-3409, Bd. 25 (2019), 104005, S. 1-12
https://doi.org/10.1016/j.dib.2019.104005
Numerical results for the multiobjective trust region algorithm MHT. - In: Data in Brief, ISSN 2352-3409, Bd. 25 (2019), 104103, S. 1-18
https://doi.org/10.1016/j.dib.2019.104103
On calibration and direction finding with uniform circular arrays. - In: International journal of antennas and propagation, ISSN 1687-5877, (2019), Article ID 1523469, Seite 1-12
https://doi.org/10.1155/2019/1523469
Zoom systems with tunable lenses and linear lens movements. - In: Journal of the European Optical Society, ISSN 1990-2573, Bd. 15 (2019), 1, 9, S. 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
In situ production of titanium aluminides during wire arc additive manufacturing with hot-wire assisted GMAW process. - In: Metals, ISSN 2075-4701, Bd. 9 (2019), 5, 578, insges. 13 S.
https://doi.org/10.3390/met9050578
Temperature dependence of dynamic parameters of contact thermometers. - In: Sensors, ISSN 1424-8220, Bd. 19 (2019), 10, 2299, insges. 9 S.
https://doi.org/10.3390/s19102299
Electrochemical deposition of silicon from a sulfolane-based electrolyte: effect of applied potential. - In: Electrochemistry communications, ISSN 1873-1902, Bd. 103 (2019), S. 7-11
https://doi.org/10.1016/j.elecom.2019.04.008
Ultra-wideband temperature dependent dielectric spectroscopy of porcine tissue and blood in the microwave frequency range. - In: Sensors, ISSN 1424-8220, Bd. 19 (2019), 7, 1707, insges. 21 S.
https://doi.org/10.3390/s19071707
Objective measurement of forward-scattered light in the human eye: an electrophysiological approach. - In: PLOS ONE, ISSN 1932-6203, Bd. 14 (2019), 4, e0214850, insges. 14 S.
https://doi.org/10.1371/journal.pone.0214850
Modeling and design of flexure hinge-based compliant mechanisms. - In: Kinematics, (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