@inproceedings{24403, abstract = {{A passive microwave sensor based on microstrip lines for characterizing cell cultivation in aqueous compartments is presented. The proposed design methodology leads to a highly sensitive biosensor structure, which is fabricated on Rogers 3003 material. It is shown that a sufficiently high sensitivity is achieved to monitor the cultivation stadium of a yeast culture based on detection of permittivity changes. The obtained measurement results show good agreement with the performed full 3D EM simulations. According to these results the presented biosensor is capable of characterizing the stage of yeast cultivation label-free and contactless.}}, author = {{Wessel, Jan and Schmalz, Klaus and Cahill, Brian and Gastrock, Gunter and Scheytt, Christoph}}, booktitle = {{Microwave Conference (EuMC), 2012 42nd European}}, title = {{{Microwave Biosensor for Characterization of Compartments in Teflon Cappilaries}}}, doi = {{10.23919/EuMC.2012.6459231 }}, year = {{2012}}, } @inproceedings{24413, abstract = {{In this paper, a novel fully digital modulator for a switch mode power amplifier (SMPA) is presented. The modulator converts the input baseband amplitude and phase signals into a two-level pulse train for driving an RF SMPA. The simulation results demonstrated a proof of the concept. The proposed architecture is analyzed in terms of accuracy by measuring EVM. The impact of the modulator parameters on the SMPA performance is investigated and corresponding results are shown. The modulator was simulated with a 20 MHz LTE signal.}}, author = {{Ostrovskyy, Philip and Scheytt, Christoph and Lee, SungJun and Park, BongHyuk and Jung, JaeHo}}, booktitle = {{Proc. IEEE Int Circuits and Systems (ISCAS) Symp}}, pages = {{2385--2388}}, title = {{{A fully digital polar modulator for switch mode RF power amplifier}}}, doi = {{10.1109/ISCAS.2012.6271777}}, year = {{2012}}, } @inproceedings{24418, abstract = {{The paper presents a four stage 245 GHz LNA in an f t /f max =280/425 GHz SiGe technology and a 4 th sub harmonic 245 GHz transconductance mixer in an f t /f max =250/300 GHz SiGe technology. The LNA takes advantage of common base (CB) topology for each stage and has 12 dB gain at 245 GHz, while exhibiting a 3 dB bandwidth of 26 GHz. It has a supply voltage of 2V and power dissipation of 28 mW. The transconductance mixer has -7 dB conversion gain at 245 GHz with an LO power of 8 dBm at 61 GHz. The mixer draws 9.8 mA at 3V. Simulation results of the receiver comprising the CB LNA and SHM mixer are given.}}, author = {{Mao, Yanfei and Schmalz, Klaus and Borngräber, Johannes and Scheytt, Christoph}}, booktitle = {{SiRF 2012 (Silicon Monolithic Integrated Circuits in RF Systems)}}, pages = {{5--8}}, title = {{{A 245 GHz CB LNA and SHM mixer in SiGe technology}}}, doi = {{10.1109/SiRF.2012.6160120}}, year = {{2012}}, } @inproceedings{24422, abstract = {{This paper presents two local navigation strategies for multi-robot systems in performing exploration of unknown environments. The strategies are based on the frontier cell for mapping the environment and navigating in it. Additionally, two coordination strategies are used to solve possible conflicts among robots. Key criteria investigated are the efficiency and effectiveness represented by the completion time, traveled distance, the total steps, and the task distribution. The developed algorithms are tested in simulations as well as in experiments with Khepera III mini robots running on the Teleworkbench. To evaluate the robustness of the developed algorithms, tests are performed under different environmental configurations and varying numbers of robots. The results show the advantages of both proposed strategies in different situations such as environment types and starting positions.}}, author = {{Tanoto, Andry and Rückert, Ulrich}}, booktitle = {{From Simulation to Experimentation with Mini-Robots}}, pages = {{pp.1197--1203}}, title = {{{Local Navigation Strategies for Multi-Robot Exploration}}}, doi = {{10.1016/j.proeng.2012.07.301}}, volume = {{41}}, year = {{2012}}, } @inbook{24424, abstract = {{One challenging aspect in the development of multi-robot systems is their validation in a real environment. However, experiments with real robots are considerably tedious as experimenting is repetitive and consists of several steps: setup, execution, data logging, monitoring, and analysis. Moreover, experiments also require many resources especially in the case when involving many robots. This paper describes the role of the Teleworkbench as a platform for conducting experiments involving mini robots. The Teleworkbench offers functionality that can help users in validating their robot software from simulation to prototyping using mini robots. A traffic management system is used as a scenario for demonstrating the support of the Teleworkbench for validating multi-robot systems.}}, author = {{Tanoto, Andry and Werner, Felix and Rückert, Ulrich and Sitte, Joaquin}}, booktitle = {{Advances in Autonomous Mini Robots}}, pages = {{pp. 147--159}}, publisher = {{Springer-Verlag Berlin Heidelberg}}, title = {{{Multi-Robot System Validation: From Simulation to Prototyping with Mini Robots in the Teleworkbench}}}, year = {{2012}}, } @inproceedings{25777, abstract = {{This paper presents a hierarchical hyprid planning approach developed for realizing self-optimizing mechatronic systems. The hybrid planning approach is based on a discrete plan and a forecast of continuous system behavior generated by simulation during runtime. This does not only allow an online adaptation of a previously generated plan with regard to the actual system state as well as the current environmental conditions, even the planning objectives may be adapted to newly arising needs during system operation. The planner exploits the hierarchy already present in the system model by considering hierarchical parameterizations of the system as a discrete dimension of choice. The parameterizations are proposed by a novel hierarchical multiobjective optimization, which calculates Pareto points in a bottom up fashion, taking into account the constraints imposed by lower levels of the system hierarchy on the higher ones. Evaluations of the hierarchical hybrid planner in the context of an innovative railbound transport system show that it outperforms its non-hierarchical predecessor. }}, author = {{Esau, Natascha and Krüger, Martin and Rasche, Christoph and Beringer, Steffen and Kleinjohann, Lisa and Kleinjohann, Bernd}}, booktitle = {{7th IEEE Conference in Industrial Electronics and Applications}}, location = {{Singapore, 18. - 20. Jul. 2012 IEEE, IEEE}}, publisher = {{IEEE}}, title = {{{Hierarchical Hybrid Planning for a Self-Optimizing Active Suspension System}}}, year = {{2012}}, } @inproceedings{26028, author = {{Montealegre, Norma and Rammig, Franz-Josef}}, booktitle = {{Third IEEE Workshop on Self-Organizing Real-Time Systems (SORT 2012)}}, title = {{{Agent-Based Modeling and Simulation of Artificial Immune Systems}}}, year = {{2012}}, } @article{26907, author = {{Krupp, Danika and Johner, Simone A. and Kalhoff, Hermann and Buyken, Anette and Remer, Thomas}}, issn = {{0022-3166}}, journal = {{The Journal of Nutrition}}, pages = {{313--319}}, title = {{{Long-Term Dietary Potential Renal Acid Load During Adolescence Is Prospectively Associated with Indices of Nonalcoholic Fatty Liver Disease in Young Women}}}, doi = {{10.3945/jn.111.150540}}, year = {{2012}}, } @article{26909, author = {{Louie, Jimmy Chun Yu and Buyken, Anette and Brand-Miller, Jennie C and Flood, Victoria M}}, issn = {{0002-9165}}, journal = {{The American Journal of Clinical Nutrition}}, pages = {{694--702}}, title = {{{The link between dietary glycemic index and nutrient adequacy}}}, doi = {{10.3945/ajcn.111.015271}}, year = {{2012}}, } @article{3633, author = {{Harteis, Christian and Morgenthaler, Barbara and Kugler, Christine and Ittner, Karl-Peter and Roth, Gabriel and Graf, Bernhard}}, journal = {{Vocations and Learning}}, number = {{2}}, pages = {{119----136}}, title = {{{Professional competence and intuitive decision making: A simulation study in the domain of emergency medicine}}}, volume = {{5}}, year = {{2012}}, } @article{27067, author = {{Shi, Lijie and Libuda, Lars and Schönau, Eckhard and Frassetto, Lynda and Remer, Thomas}}, issn = {{8756-3282}}, journal = {{Bone}}, pages = {{1026--1031}}, title = {{{Long term higher urinary calcium excretion within the normal physiologic range predicts impaired bone status of the proximal radius in healthy children with higher potential renal acid load}}}, doi = {{10.1016/j.bone.2012.01.026}}, year = {{2012}}, } @article{27074, author = {{Vyncke, KE and Libuda, Lars and De Vriendt, T and Moreno, LA and Van Winckel, M and Manios, Y and Gottrand, F and Molnar, D and Vanaelst, B and Sjöström, M and González-Gross, M and Censi, L and Widhalm, K and Michels, N and Gilbert, CC and Xatzis, C and Cuenca García, M and de Heredia, FP and De Henauw, S and Huybrechts, I and consortium, HELENA}}, issn = {{0007-1145}}, journal = {{Br J Nutr}}, number = {{12}}, pages = {{2261--2273}}, title = {{{Dietary fatty acid intake, its food sources and determinants in European adolescents: the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescence) Study.}}}, doi = {{10.1017/s000711451200030x}}, volume = {{108}}, year = {{2012}}, } @article{27075, author = {{Duffey, KJ and Huybrechts, I and Mouratidou, T and Libuda, Lars and Kersting, M and De Vriendt, T and Gottrand, F and Widhalm, K and Dallongeville, J and Hallström, L and González-Gross, M and De Henauw, S and Moreno, LA and Popkin, BM and Study group, HELENA}}, issn = {{0954-3007}}, journal = {{Eur J Clin Nutr}}, number = {{2}}, pages = {{244--252}}, title = {{{Beverage consumption among European adolescents in the HELENA study.}}}, doi = {{10.1038/ejcn.2011.166}}, volume = {{66}}, year = {{2012}}, } @inproceedings{27179, author = {{Klompmaker, Florian and Nebe, Karsten and Eschenlohr, Julien}}, publisher = {{Springer}}, title = {{{Towards Multimodal 3D Tabletop Interaction using Sensor Equipped Mobile Devices }}}, year = {{2012}}, } @inproceedings{27185, abstract = {{Since 2010 when the Microsoft Kinect with its integrated depth-sensing camera appeared on the market, completely new kinds of interaction techniques have been integrated into console games. They don’t require any instrumentalization and no complicated calibration or time-consuming setup anymore. But even having these benefits, some drawbacks exist. Most games only enable the user to fulfill very simple gestures like waving, jumping or stooping, which is not the natural behavior of a user. In addition the depth-sensing technology lacks of haptic feedback. Of course we cannot solve the lack of haptic feedback, but we want to improve the whole-body interaction. Our goal is to develop 3D interaction techniques that give a maximum of freedom to the user and enable her to perform precise and immersive interactions. This work focuses on whole-body interaction in immersive virtual environments. We present 3D interaction techniques that provide the user with a maximum of freedom and enables her to operate precisely and immersive in virtual environments. Furthermore we present a user study, in which we analyzed how Navigation and Manipulation techniques can be performed by users’ body-interaction using a depth-sensing camera and a huge projection screen. Therefore three alternative approaches have been developed and tested: classical gamepad interaction, an indirect pointer-based interaction and a more direct whole- body interaction technique. We compared their effectiveness and preciseness. It turned out that users act faster, while using the gamepad, but generate significantly more errors at the same time. Using depth-sensing based whole-body interaction techniques it became apparent, that the interaction is much more immersive, natural and intuitive, even if slower. We will show the advantages of our approach and how it can be used in various domains, more effectively and efficiently for their users.}}, author = {{Klompmaker, Florian and Dridger, Alexander and Nebe, Karsten}}, booktitle = {{Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference}}, publisher = {{ASME}}, title = {{{EVALUATION OF WHOLE-BODY NAVIGATION AND SELECTION TECHNIQUES IN IMMERSIVE 3D ENVIRONMENTS}}}, year = {{2012}}, } @inbook{27520, author = {{Schlegel-Matthies, Kirsten}}, booktitle = {{Klinkhardt Lexikon Erziehungswissenschaft}}, editor = {{v. Horn, K.P. and Kemnitz, W. and Marotzki, W. and Sandfuchs, U. }}, title = {{{Verbraucherbildung}}}, year = {{2012}}, } @article{27582, author = {{Libuda, Lars and Alexey, Ute}}, journal = {{Pädiatrische Praxis}}, number = {{3}}, pages = {{429--430}}, title = {{{Der Verzehr von Kochsalz und die Entwicklung des Körpergewichts.}}}, volume = {{79}}, year = {{2012}}, } @article{27730, author = {{Hauner, Hans and Bechthold, Angela and Boeing, Heiner and Brönstrup, Anja and Buyken, Anette and Leschik-Bonnet, Eva and Linseisen, Jakob and Schulze, Matthias and Strohm, Daniela and Wolfram, Günther}}, issn = {{1421-9697}}, journal = {{Annals of Nutrition and Metabolism}}, pages = {{1--58}}, title = {{{Evidence-Based Guideline of the German Nutrition Society: Carbohydrate Intake and Prevention of Nutrition-Related Diseases}}}, doi = {{10.1159/000335326}}, year = {{2012}}, } @article{27731, author = {{Kühn, Tilman and Kroke, Anja and Remer, Thomas and Schönau, Eckhard and Buyken, Anette}}, issn = {{1740-8695}}, journal = {{Maternal & Child Nutrition}}, pages = {{642--649}}, title = {{{Is breastfeeding related to bone properties? A longitudinal analysis of associations between breastfeeding duration and pQCT parameters in children and adolescents}}}, doi = {{10.1111/j.1740-8709.2012.00443.x}}, year = {{2012}}, } @article{27753, author = {{Joslowski, G and Goletzke, J and Cheng, G and Günther, A L B and Bao, J and Brand-Miller, J C and Buyken, Anette}}, issn = {{0307-0565}}, journal = {{International Journal of Obesity}}, pages = {{1463--1471}}, title = {{{Prospective associations of dietary insulin demand, glycemic index, and glycemic load during puberty with body composition in young adulthood}}}, doi = {{10.1038/ijo.2011.241}}, year = {{2012}}, }