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The International Year of Light and Light-Based Technologies 2015 (IYL 2015) was celebrated around the world. Worldwide activities were organized to highlight the impact of optics and photonics on life, science, economics, arts and culture, and also in education. With most of our activities at Offenburg University of Applied Sciences (Offenburg/Germany), we reached our own students and the general population of our region: - University for Children: “The Magic of Light“ winter lecture program and “Across the Universe with Relativity and Quantum Theory” summer lecture program - “Students Meet Scientists” - “A Century of General Relativity Theory” lecture program Nevertheless, with some of our activities we also engaged a worldwide audience: - IYL 2015 art poster collection (Magic of Light and No Football, Just Photonics) - Smart Interactive Projection - Twitter Wall - “Invisible Light” - Live broadcasting of the total lunar eclipse - Film Festival Merida Mexico The authors will highlight recent activities at our university dedicated to promote, celebrate, and create a legacy for the IYL 2015.
Um Rückschlüsse auf das Vorgehen von Studierenden beim Lesen technischer Darstellungen ziehen zu können, wurden 49 Probanden aus dem Studiengang „Maschinenbau“ der Hochschule Offenburg bei ihrer Lösungssuche für eine zeichnerische Aufgabe mit Hilfe der Eyetracking-Technik beobachtet. Die Analyse der empirischen Untersuchungen legt die Vermutung nahe, dass die zunehmende Digitalisierung der Gesellschaft verstärkt zu einem punktuellen und flüchtigen Wahrnehmungsverhalten führen. Ruhe und Gelassenheit im Umgang mit Informationen gehen verloren, ebenso das Denken im Kontext. Nach Ansicht der Autoren sollte in der Ausbildung deshalb eine stärkere Konzentration auf die Grundbausteine und die grundlegenden Zusammenhänge des jeweiligen Fachgebietes, Entschleunigung, Förderung von Versteh-, Abstraktions- und Denkfähigkeit und auf der Motivation zur studentischen Eigenleistung liegen.
Additive manufacturing (AM), or 3D printing (3DP), has increasingly become more wide-spread and applied to a great degree over the past years. Along with that, the necessity for training courses which impart the required knowledge for product development with 3D printing rises. This article will introduce a “Rapid Prototyping” workshop which should convey to students the technical and creative knowledge for product development in using additive manufacturing. In this workshop, various 3D printers are initially installed and put into operation for the construction of self-assembly kits during the introduced training course. Afterwards, the students use databanks to select and download suitable components for the 3D print on the basis of criteria. Lastly, the students develop several assembly kits independently and establish design guidelines based on their experience. The students likewise learn to estimate and evaluate economic boundaries such as, e.g. costs and delivery times. For a start, it is a new approach to be using various assembly kits. These are up to date with current technology and dispose of features such as, e.g., additional nozzles for support material and heated building platforms. Moreover, a comprehensive evaluation of the training success will be conducted. The students’ level of knowledge in various areas will also be determined and compared with surveys taken before and after the conducting of the workshops. Additionally, cost and delivery time estimates and knowledge of databanks will be determined through concrete questioning.
The number of impaired persons rises -- as a result of both regular degradation with age and psychological problems like burnout. Sheltered work organizations aim to reintegrate impaired persons into work environments and prepare them for the re-entry in the regular job market.
Both for elderly and for impaired persons it is crucial to quickly assess the abilities, to identify limits and potentials and thus find work processes suitable for their skill profile.
This work focuses on the analysis and comparison of software-tools that assess the abilities of persons with impairments. We describe two established generic tools (CANTAB, Cogstate), analyze a yet unknown specialized tool (Hamet) and present a new gamified tool (GATRAS).
Finally, we present a study with 20 participants with impairments, comparing the tools against a ground truth baseline generated by a real-world assembly task.
A number of design rules must be adhered to in the development and manufacturing of unmanned aerial vehicles. In this, additive manufacturing, particularly in the implementation of requirements with respect to light-weight construction and sustainability, offers several advantages compared to conventional manufacturing methods. Therefore, this article will primarily introduce and compare current concepts for sustainable design using additive manufacturing. These will, above all, consist of the production of complete fuselages and wings by means of rapid prototyping or also rapid tooling. In addition, a new concept will be introduced in which a UAV using AM can be implemented through the combination of very light components and a preferably resource-saving manufacturing method. In this process, a three-dimensional spaceframe is used in combination with a covering in the construction of the wing. Hereby, the development process for sustainable design using additive manufacturing will be analyzed and the results will be explained by means of concrete case studies. In conclusion, the results of these case studies will be compared to the latest technology regarding wing span load.
Wireless Sensor Networks (WSN) have emerged as interesting topic in the research community due to its manifold applications. One of the main challenges of this field is the energy consumption of the nodes, which typically is quite restricted due to the required lifetime of such WSNs. To solve that problem several energy-saving MAC protocols have been developed so far. One of them recently presented by the authors is the so-called SmartMAC as an extension to the IEEE802.15.4 standard. In this paper, we present the implementation details of the porting of the SmartMAC protocol to the discrete event network simulator NS3. We develop this module for NS3 to simulate the performance, multi node execution, and multi node configuration. Along with this model, we also present an energy model for the evaluation of the energy consumption. The current implementation in NS3 is based on the LR-WPAN (Low-Rate Wireless Personal Area Networks) as specified by the IEEE802.15.4 (2006) standard. The simulation results show that the SmartMAC with its sleep and wake-up mechanisms for the transceivers, is significantly more efficient than the current NS3 MAC (Medium Access Control) scheme.