Wiesbaden University of Applied Sciences

Wiesbaden, Germany
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Leydecker S.,Wiesbaden University of Applied Sciences
Architectural Design | Year: 2017

Interior design can both support healthcare staff’s working practices and help patients to relax and recover. A holistic approach is crucial: structural, visual, haptic and acoustic aspects each have their part to play. Cologne-based interior architect Sylvia Leydecker is a specialist in this field. Here, she describes two recent projects by her practice, 100% interior, where a sense of closeness to nature (inside and out) combines with cutting-edge technology and environmental awareness to ensure a positive environment for patients and their families, as well as for those attending to them. © 2017 John Wiley & Sons Ltd.

Jurisch M.,Wiesbaden University of Applied Sciences
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2017

Dealing with ontology changes is of high importance for ontology engineers in different application domains. In some applications domain ontologies cover overlapping topics. Ontology mappings represent this overlap and allow specifying a connection between domain ontologies. Adapting the mappings when the domain ontologies are changed is a problem still lacking a thoroughly evaluated, systematic approach. This doctoral research aims at providing a new approach to this problem by comparing the inferences computed from the relevant regions of the domain ontologies and the mappings before and after changes occur. A change model can be used to categorize differences in the inferences as intentional or unintentional and propose solutions to adapt the mappings. © Springer International Publishing AG 2017.

Barth P.,Wiesbaden University of Applied Sciences | Gross H.,Wiesbaden University of Applied Sciences
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2017

Blaubot is a middleware that supports channel-based communication among many Android devices forming a local group. It abstracts from the underlying networking infrastructure supporting at least Bluetooth and WLAN configured as star network using point-to-point connections with automated master selection. A flexible beacon-based connection management discovers, (re-)connects, and merges local groups automatically using several independent network infrastructures including protocols such as Multicast, Bluetooth, and NFC concurrently. This allows for dynamic expanding and shrinking of the group during program execution, but sacrifices guaranteed delivery. An easy to use API allows to post prioritised messages on queue-based channels, that are delivered to all subscribed group members. © 2017, Springer International Publishing AG.

Agency: European Commission | Branch: FP7 | Program: MC-ITN | Phase: FP7-PEOPLE-2010-ITN | Award Amount: 4.72M | Year: 2010

The interest in bottom-up fabricated semiconductor nanowires (NWs) has been growing steadily in the last years due to their potential as basic building blocks of nanoscale devices and circuits. Investigations performed so far try to exploit three unique properties of NWs: First, they are the smallest dimension structures that allow optical guiding and electrical contacting simultaneously. Second, their large surface to volume ratio enhances their interaction with the environment, turning them into optimal chemical and biological sensors. Finally, their anisotropic geometry makes their optical and electrical properties dramatically dependent on their orientation, allowing their use as polarization-dependent sensors. Most NW applications rely on the ability to grow, characterize (structurally, optically and electronically) and manipulate both individual and collections of NWs. To date it is rather difficult to find a single research group covering all of the above competences, and students (or post-docs) usually focus on a single aspect of NW-based device realization (either growth, characterization, simulation or device assembly). The scope of this project is to create a European Network of experienced teams that will provide early stage researchers with a multidisciplinary framework and a comprehensive training in the field of NW physics and applications. The active involvement of industrial partners will ensure that the acquired competences are driven by industrial needs, such as scalable and low cost NW production. The interaction with associated industrial partners will also add to the employability of the recruited researchers through the exposure to the private sector. The main applications that we intend to address within the project time are the following: (i) nanowires for sensing applications, (ii) nanowires for optoelectronics (iii) nanowires for nanoelectronics and (iv) nanowires for energy harvesting.

Hu X.,Oak Ridge National Laboratory | Hu X.,University of Tennessee at Knoxville | Hong L.,Shanghai JiaoTong University | Dean Smith M.,Oak Ridge National Laboratory | And 4 more authors.
Nature Physics | Year: 2016

Internal motions of proteins are essential to their function. The time dependence of protein structural fluctuations is highly complex, manifesting subdiffusive, non-exponential behaviour with effective relaxation times existing over many decades in time, from ps up to ∼10 2 s (refs,). Here, using molecular dynamics simulations, we show that, on timescales from 10 -12 to 10 -5 s, motions in single proteins are self-similar, non-equilibrium and exhibit ageing. The characteristic relaxation time for a distance fluctuation, such as inter-domain motion, is observation-time-dependent, increasing in a simple, power-law fashion, arising from the fractal nature of the topology and geometry of the energy landscape explored. Diffusion over the energy landscape follows a non-ergodic continuous time random walk. Comparison with single-molecule experiments suggests that the non-equilibrium self-similar dynamical behaviour persists up to timescales approaching the in vivo lifespan of individual protein molecules. © 2016 Macmillan Publishers Limited.

Agency: European Commission | Branch: FP7 | Program: MC-IRSES | Phase: FP7-PEOPLE-2010-IRSES | Award Amount: 357.00K | Year: 2011

The proposal aims at strengthening research partnerships through staff exchanges and networking activities between 2 European research organisations from Germany and Spain, and 2 research organisations from Argentina and Brazil. The scientific objective is to create a co-evolvement process towards a successful management model for SMEs that combines the European innovation and organizational learning model with Latin American survival strategies in turbulent economies (exemplified by Argentina and Brazil) based on learning networks and clusters. Both, in Europe and Latin America, SMEs are the most important sources of job creation and development in increasingly knowledge based economies. The economic environment in which SMEs operate, however, have differed significantly until recently. As the turbulence of the global economy is increasing European SMEs will have to learn to remain competitive in this new kind of economic environment. The answer lies in the development of dynamic capabilities of innovating, learning and knowledge management by SME networks. Following established theories and practices of organisational and social learning knowledge research activities are conceived as a joint learning and co-evolvement cycle in four phases Creating a joint vision,Learning from European approaches, Co-evolve SME model and practice in Argentina and Brazil,IHarvest and sustain. To achieve this objective a joint learning and co-evolvement process will be developed by four international research teams focusing on 1)Developing dynamic capabilities via SME networks and 2) via SME clusters , 3)Media \ tools for developing dynamic capabilities, 4) monitoring dynamic capability development The proposed project will create 4 major impacts:1. A new understanding of sustainable SME management in turbulent economies. 2.Improved innovation and learning capabilities of SMEs. 3.A lasting community of scholars. 4. Wide dissemination and leverage to key actors

Agency: European Commission | Branch: FP7 | Program: NoE | Phase: ICT-2007.4.4 | Award Amount: 3.20M | Year: 2009

Interactive Storytelling is a major endeavour to develop new media which could offer a radically new user experience, with a potential to revolutionise digital entertainment. European research in Interactive Storytelling has played a leading role in the development of the field, and this creates a unique opportunity to strengthen its position even further by structuring some of its best actors within a NoE. \nIRIS (Integrating Research in Interactive Storytelling) aims at creating a virtual centre of excellence that will be able to achieve breakthroughs in the understanding of Interactive Storytelling and the development of corresponding technologies. It is organised around four major objectives:\t\nTo extend Interactive Storytelling technologies in terms of performance and scalability, so that they can support the production of actual Interactive Narratives \nTo make the next generation of Interactive Storytelling technologies more accessible to authors and content creators of different media backgrounds (scriptwriters, storyboarders, game designers) \nTo develop a more Integrated Approach to Interactive Storytelling Technologies, achieving a proper integration with cinematography \nTo develop Methodologies to evaluate Interactive Storytelling systems as well as the media experience of Interactive Narrative\nThe Joint Programme of Activities integrates complementary skills which are necessary to address the above objectives (e.g. integration with cinematography, authoring, evaluation, user interaction techniques). It benefits from the integration of extensive partners background, but also plans to revisit existing research programmes from the perspective of collaboration (e.g. revisiting Interactive Storytelling technologies from the perspective of authoring and cinematography).

Beckmann K.,Wiesbaden University of Applied Sciences | Thoss M.,Wiesbaden University of Applied Sciences
WISES 2012 - Proceedings, Workshop on Intelligent Solutions in Embedded Systems | Year: 2012

Wireless Sensor Network technologies are maturing into industrial applicability, but the availability of broadly supported architectures and integration of existing standards is still lagging behind. As a proposal to ameliorate this situation, we consider the OMG Data Distribution Service (DDS), a middleware standard for interoperable data-centric publish/subscribe architectures with real-time capabilities, a candidate for standards-based realisations of equally data-centric WSN scenarios. DDS is rooted in larger-scale architectures. Consequently, the RTPS network protocol defined as a sibling standard to DDS assumes Ethernet-sized network frames and substantial communication resources, which are potential obstacles to applying DDS to WSNs. We therefore propose SNPS as an alternative transport protocol for DDS communication. SNPS has been designed as part of sDDS, a model-driven DDS realization architecture supporting highly resource-constrained embedded sensor node platforms. Still, SNPS is generally independent of sDDS; it was demonstrated to be usable even with minimalist solutions lacking a proper DDS run-time system. For SNPS, a modular layered architecture focussing on minimum footprint and scalability was defined. SNPS packets are assembled from an extensible set of submessages that are chosen and filled according to a well-defined, unambiguous protocol state engine. Keeping a stack of context information for a stream of SNPS submessages minimizes explicit state representation in the resulting packet structure. Other aspects of the protocol design are the support for bundling of data to minimize the total number of link layer frames exchanged and the leveraging of multi- and broadcast properties of wireless sensor networks. Most of the features are beneficial for wired sensor networks as well. SNPS has been implemented for several wireless and wired network protocols (ZigBee, 6LoWPAN, and Ethernet/UDP/IP) on diverse embedded sensor node and PC platforms. It has been embedded in the sDDS architecture and integrated into minimalist standalone implementations. It will be the main DDS transport protocol used at sensor integration levels of current projects of the authors' laboratory research group targeting home and industrial automation scenarios. © 2012 Universitat Klagenfurt.

The application of the logarithmic normal distribution (LND) in material testing is useful in cases of large variation coefficients. The general task is, to gain from a sample an information of the characteristic value of the tested material property. For that in ge neral the one-sided lower tolerance limit is calculated. German application standards and norms regulate this calculation for the use of the LND not in a correct way - the resulting characteristic values for the regular demanded confidence level of 75 % are too favourable. These calculations do not respect the different distributions with different obliquity of the tested attributes in the sample on one hand and of the mean values of all samples on the other one. This mistake in using the LND is shown in examples. A pragmatic intermediate solution is given, up to the necessary revision in the norms. © Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG.

Jungk B.,Wiesbaden University of Applied Sciences | Apfelbeck J.,Wiesbaden University of Applied Sciences
Proceedings - 2011 International Conference on Reconfigurable Computing and FPGAs, ReConFig 2011 | Year: 2011

Secure cryptographic hash functions are core components in many applications like challenge-response authentication systems or digital signature schemes. Many of these applications are used in cost-sensitive markets and thus slow budget implementations of such components are very important. In the present paper, we focus on the new SHA-3 competition, started by the National Institute of Standards and Technology (NIST), which searches for a new hash function in response to security concerns regarding the previous hash functions SHA-1 and the SHA-2 family. This work adds new valuable data to the competition, by providing an evaluation of area-efficient implementations of all finalists. Our results show, that it is possible to implement all candidates reasonably small. We focus on area-efficiency and therefore we do not rank the candidates by absolute throughput, but rather by the area and the throughput-area ratio. The results hint that Grøstl and Keccak are the best overall performers for compact implementations, if the throughput-area ratio is most important. The following candidate is BLAKE, while the Skein and JH implementations trail behind. The area ranking changes the results and puts JH on the top, followed by BLAKE, Grøstl, Keccak and Skein. © 2011 IEEE.

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