@article{54945, abstract = {{We describe a programming scheme for massively distributed systems that are assumed to self-organize according to a given set of simple rules. The focus of this investigation is operation and control in Sensor and Actor Networks (SANETs). The main issues addressed by self-organization techniques are scalability, network lifetime, and real-time support. In the literature, biological principles are often cited as inspirations for technical solutions, especially in the domain of self-organization. We developed a system named Rule-based Sensor Network (RSN) according to the observed communication and control behavior in cellular communication. Cellular signaling cascades allow the event-specific reaction initiated by individual cells in collaboration with their direct neighbors. Information between cells are transmitted via proteins and result in the cascade of protein-protein or protein-DNA interactions to produce a specific cellular answer, e.g. the activation of cells or the transmission of mediators. These processes are programmed in every individual cell and lead to a coordinated reaction on a higher organization platform. We transferred these mechanisms to operation and control in SANETs. In particular, a rule-based processing scheme relying on the main concepts of cellular signaling cascades has been developed. It relies on simple local rules and provides problem specific reaction such as local actuation control and data manipulation. We describe this RSN technology and demonstrate comparative simulation results that show the feasibility of our approach.}}, author = {{Dressler, Falko and Dietrich, Isabel and German, Reinhard and Krueger, Bettina}}, issn = {{1389-1286}}, journal = {{Elsevier Computer Networks}}, number = {{10}}, pages = {{1737–1750}}, publisher = {{Elsevier}}, title = {{{A Rule-based System for Programming Self-Organized Sensor and Actor Networks}}}, doi = {{10.1016/j.comnet.2008.09.007}}, volume = {{53}}, year = {{2009}}, } @inproceedings{37066, abstract = {{Today, mobile and embedded real-time systems have to cope with the migration and allocation of multiple software tasks running on top of a real-time operating system (RTOS) residing on one or multiple system processors. Abstract RTOS simulations and timing analysis applies for fast and early estimation to configure it towards the individual needs of the application and environment. In this context, a high accuracy of the simulation compared to an instruction set simulation (ISS) is of key importance. In this paper, we investigate the accuracy of abstract RTOS simulation and compare it to ISS and the behavior of the physical system. We show that we can reach an increased accuracy of the simulation when we inject noise into the time model. Our results indicate that it is sufficient to inject uniformly distributed random time values to the RTOS real-time clock.}}, author = {{Zabel, Henning and Müller, Wolfgang}}, booktitle = {{Proceedings of DATE'09}}, isbn = {{978-1-4244-3781-8}}, keywords = {{Timing, Analytical models, Clocks, Performance analysis, Scheduling, Operating systems, Delay, Real time systems, Application software, Context modeling}}, title = {{{Increased Accuracy through Noise Injection in Abstract RTOS Simulation}}}, doi = {{10.1109/DATE.2009.5090925}}, year = {{2009}}, } @inproceedings{37064, author = {{Becker, Markus and Zabel, Henning and Müller, Wolfgang}}, location = {{Berlin}}, title = {{{Integration abstrakter RTOS-Simulation in den Entwurf eingebetteter automobiler E/E-Systeme}}}, year = {{2009}}, } @article{36050, author = {{Schlegel-Matthies, Kirsten and Methfessel, Barbara and Bigga, Regine}}, issn = {{0342-5088}}, journal = {{Haushalt & Bildung}}, number = {{2}}, pages = {{10--14}}, publisher = {{Schneider-Verlag}}, title = {{{Materielle Ressourcen – oder: Warum, wozu und wie haben und nutzen wir Güter?}}}, volume = {{86}}, year = {{2009}}, } @article{28785, author = {{Mahnken, Rolf}}, issn = {{1662-9795}}, journal = {{Key Engineering Materials}}, pages = {{357--362}}, title = {{{Mode Decomposition for Creep Simulation of Asymmetric Effects with Applications to Superalloys}}}, doi = {{10.4028/www.scientific.net/kem.251-252.357}}, year = {{2009}}, } @article{26270, author = {{Mahnken, Rolf}}, issn = {{1617-7061}}, journal = {{PAMM}}, pages = {{10305--10306}}, title = {{{Simulation of brittle crack growth in functionally graded materials}}}, doi = {{10.1002/pamm.200810305}}, year = {{2009}}, } @inproceedings{17272, abstract = {{In developmental research, tutoring behavior has been identified as scaffolding infants' learning processes. It has been defined in terms of child-directed speech (Motherese), child-directed motion (Motionese), and contingency. In the field of developmental robotics, research often assumes that in human-robot interaction (HRI), robots are treated similar to infants, because their immature cognitive capabilities benefit from this behavior. However, according to our knowledge, it has barely been studied whether this is true and how exactly humans alter their behavior towards a robotic interaction partner. In this paper, we present results concerning the acceptance of a robotic agent in a social learning scenario obtained via comparison to adults and 8-11 months old infants in equal conditions. These results constitute an important empirical basis for making use of tutoring behavior in social robotics. In our study, we performed a detailed multimodal analysis of HRI in a tutoring situation using the example of a robot simulation equipped with a bottom-up saliency-based attention model. Our results reveal significant differences in hand movement velocity, motion pauses, range of motion, and eye gaze suggesting that for example adults decrease their hand movement velocity in an Adult-Child Interaction (ACI), opposed to an Adult-Adult Interaction (AAI) and this decrease is even higher in the Adult-Robot Interaction (ARI). We also found important differences between ACI and ARI in how the behavior is modified over time as the interaction unfolds. These findings indicate the necessity of integrating top-down feedback structures into a bottom-up system for robots to be fully accepted as interaction partners.}}, author = {{Vollmer, Anna-Lisa and Lohan, Katrin Solveig and Fischer, Kerstin and Nagai, Yukie and Pitsch, Karola and Fritsch, Jannik and Rohlfing, Katharina and Wrede, Britta}}, booktitle = {{Development and Learning, 2009. ICDL 2009. IEEE 8th International Conference on Development and Learning}}, keywords = {{robot simulation, hand movement velocity, robotic interaction partner, robotic agent, robot-directed interaction, multimodal analysis, Motionese, Motherese, intelligent tutoring systems, immature cognitive capability, human computer interaction, eye gaze, child-directed speech, child-directed motion, bottom-up system, bottom-up saliency-based attention model, adult-robot interaction, adult-child interaction, adult-adult interaction, human-robot interaction, action learning, social learning scenario, social robotics, software agents, top-down feedback structures, tutoring behavior}}, pages = {{1--6}}, publisher = {{IEEE}}, title = {{{People modify their tutoring behavior in robot-directed interaction for action learning}}}, doi = {{10.1109/DEVLRN.2009.5175516}}, year = {{2009}}, } @article{40220, author = {{Wagenknecht, Inga and Meier-Gräwe, Uta and Fegert, Jörg M.}}, issn = {{0721-9121}}, journal = {{Frühförderung interdisziplinär}}, pages = {{82--91}}, title = {{{Frühe Hilfen rechnen sich}}}, volume = {{28}}, year = {{2009}}, } @article{14919, author = {{Müller, Heiko and Sureth-Sloane, Caren}}, journal = {{International Journal of Microsimulation}}, number = {{1}}, pages = {{32--48}}, title = {{{Income Tax Analysis: A Comparison of Microsimulation versus Group Simulation}}}, volume = {{2}}, year = {{2009}}, } @inproceedings{44069, abstract = {{Recently it has been shown experimentally that it is possible to coherently control nano-optical excitations by using sophisticated shaped laser pulses. In this work a similar technique is used to theoretically investigate a hybrid nanostructure which consists of a metal aperture and a quantum wire. It is shown that one can concentrate the optically excited electron density at an arbitrary position due to wave packet dynamics by chosing particular frequency components and phases of the chirped laser pulse. The optimization process is performed with a genetic algorithm which is linked to a 3D-FDTD solver.}}, author = {{Meier, Torsten and Reichelt, Matthias}}, booktitle = {{DPG Spring meeting 2009}}, issn = {{0420-0195}}, location = {{Dresden, Germany}}, number = {{5}}, title = {{{Coherent control in hybrid metal-semiconductor nanostructures}}}, volume = {{44}}, year = {{2009}}, } @inproceedings{2263, abstract = {{In this paper, we introduce the Woolcano reconfigurable processor architecture. The architecture is based on the Xilinx Virtex-4 FX FPGA and leverages the Auxiliary Processing Unit (APU) as well as the partial reconfiguration capabilities to provide dynamically reconfigurable custom instructions. We also present a hardware tool flow that automatically translates software functions into custom instructions and a software tool flow that creates binaries using these instructions. While previous research on processors with reconfigurable functional units has been performed predominantly with simulation, the Woolcano architecture allows for exploring dynamic instruction set extension with commercially available hardware. Finally, we present a case study demonstrating a custom floating-point instruction generated with our approach, which achieves a 40x speedup over software-emulated floating-point operations and a 21% speedup over the Xilinx hardware floating-point unit. }}, author = {{Grad, Mariusz and Plessl, Christian}}, booktitle = {{Proc. Int. Conf. on Engineering of Reconfigurable Systems and Algorithms (ERSA)}}, isbn = {{1-60132-101-5}}, pages = {{319--322}}, publisher = {{CSREA Press}}, title = {{{Woolcano: An Architecture and Tool Flow for Dynamic Instruction Set Extension on Xilinx Virtex-4 FX}}}, year = {{2009}}, } @article{64055, abstract = {{A program for iterative fitting procedures to determine the NMR parameters from 51V solid-state MAS NMR spectra was developed. It contains options to use genetic algorithms and downhill-simplex optimizing procedures to extract the optimal parameter sets, which describe our spectra. As computational kernel the SIMPSON program is employed. Other kernels like SPINEVOLUTION are easily incorporable. The algorithms are checked for their suitability for the present optimization problem and optimal simulation conditions are determined, with the focus on minimal processing time. The procedure leads to a very good agreement between experimental and simulated spectra in a passable period of time. First results for spectra of model compounds for the active site of vanadium haloperoxidases are presented.}}, author = {{Waechtler, Maria and Schweitzer, Annika and Gutmann, Torsten and Breitzke, Hergen and Buntkowsky, Gerd}}, journal = {{Solid State Nuclear Magnetic Resonance}}, keywords = {{51V MAS NMR spectroscopy, Genetic algorithms, Iterative fitting procedures, Model complexes for vanadium haloperoxidases}}, number = {{1}}, pages = {{37–48}}, title = {{{Efficient analysis of 51V solid-state MAS NMR spectra using genetic algorithms}}}, doi = {{10.1016/j.ssnmr.2008.11.003}}, volume = {{35}}, year = {{2009}}, } @inbook{33809, abstract = {{Today, mobile and embedded real-time systems have to cope with the migration and allocation of multiple software tasks running on top of a real-time operating system (RTOS) residing on one or several system processors. Each RTOS has to be configured towards the individual needs of the application and environment. For this, different scheduling strategies and task priorities have to be evaluated in order to keep execution and response times for a given task set. Abstract RTOS simulation is applied to analyze different parameters in early design phases. This chapter presents a SystemC RTOS library for abstract yet accurate RTOS sim- ulation, supporting modeling of preemption in the presence of prioritized and nested interrupts. After introducing basic principles of abstract RTOS simula- tion, we present our SystemC library in detail. Thereafter, we discuss related approaches and close with applications in electronic automotive systems design and some evaluations.}}, author = {{Zabel, Henning and Müller, Wolfgang and Gerstlauer, Andreas}}, booktitle = {{Hardware Dependent Software - Principles and Practice}}, editor = {{Ecker, Wolfgang and Müller, Wolfgang and Dömer, Rainer}}, isbn = {{978-1-4020-9435-4}}, pages = {{233--260}}, publisher = {{Springer Verlag}}, title = {{{Accurate RTOS Modelling and Analysis with SystemC}}}, year = {{2009}}, } @article{52400, author = {{Lang, Bastian and Schlüter, Alexander and Junge, Mark and Mirciov, Sabine}}, journal = {{ŋ[energie]}}, number = {{1}}, title = {{{Simulation als Schlüssel zur Energieeffizienz}}}, year = {{2009}}, } @inproceedings{19813, abstract = {{Autonomous robotic systems have been gaining the attention of research community in mobile ad hoc network since the past few years. While motion cost and communications cost constitute the primary energy consumers, each of them is investigated independently. By taking into account the power consumption of both entities, the overall energy efficiency of a system can be further improved. In this paper, the energy optimization problem of radio communication and motion is examined. We consider a hybrid wireless network that consists of a single autonomous mobile node and multiple relay nodes. The mobile node interacts with the relays within its vicinity by continuously communicating high-bandwidth data, e.g. triggered by a multimedia application like video surveillance. The goal is to find the best path such that the energy consumption for both mobility and communications is minimized. We introduce the Radio-Energy-Aware (REA) path computation strategy by utilizing node mobility. Given the starting point, the target point and the position of the relays, our simulation results show that the proposed strategy improves the energy efficiency of mobile node compared to the Motion-Energy-Aware (MEA) path constructed based only on the mobility cost. }}, author = {{Ooi, Chia Ching and Schindelhauer, Christian}}, booktitle = {{MWCN'08: Proc. of IFIP Joint Conference on Mobile Wireless Communications Networks (MWCN 2008) and Personal Wireless Communications (PWC 2008)}}, isbn = {{9780387848389}}, issn = {{1571-5736}}, publisher = {{Springer}}, title = {{{Detours Save Energy in Mobile Wireless Networks}}}, doi = {{10.1007/978-0-387-84839-6_6}}, year = {{2008}}, } @book{25839, author = {{Parisi, Salvatore}}, publisher = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}}, title = {{{A Method for the intelligent Authoring of 3D Animations for Traimimg and Maintenance}}}, volume = {{228}}, year = {{2008}}, } @article{25938, author = {{Karaolis-Danckert, N and Buyken, Anette and Kulig, M and Kroke, A and Forster, J and Kamin, W and Schuster, A and Hornberg, C and Keil, T and Bergmann, RL and Wahn, U and Lau, S}}, issn = {{0002-9165}}, journal = {{Am J Clin Nutr}}, number = {{5}}, pages = {{1356--1364}}, title = {{{How pre- and postnatal risk factors modify the effect of rapid weight gain in infancy and early childhood on subsequent fat mass development: results from the Multicenter Allergy Study 90.}}}, doi = {{10.1093/ajcn/87.5.1356}}, volume = {{87}}, year = {{2008}}, } @article{26891, author = {{Buyken, Anette and Karaolis-Danckert, Nadina and Remer, Thomas}}, issn = {{0002-9165}}, journal = {{The American Journal of Clinical Nutrition}}, pages = {{221--230}}, title = {{{Association of prepubertal body composition in healthy girls and boys with the timing of early and late pubertal markers}}}, doi = {{10.3945/ajcn.2008.26733}}, year = {{2008}}, } @article{26892, author = {{Libuda, Lars and Alexy, Ute and Buyken, Anette and Sichert-Hellert, Wolfgang and Stehle, Peter and Kersting, Mathilde}}, issn = {{0007-1145}}, journal = {{British Journal of Nutrition}}, title = {{{Consumption of sugar-sweetened beverages and its association with nutrient intakes and diet quality in German children and adolescents}}}, doi = {{10.1017/s0007114508094671}}, year = {{2008}}, } @article{27137, author = {{Libuda, Lars and Alexy, Ute and Remer, Thomas and Stehle, Peter and Schoenau, Eckhard and Kersting, Mathilde}}, issn = {{0002-9165}}, journal = {{The American Journal of Clinical Nutrition}}, pages = {{1670--1677}}, title = {{{Association between long-term consumption of soft drinks and variables of bone modeling and remodeling in a sample of healthy German children and adolescents}}}, doi = {{10.3945/ajcn.2008.26414}}, year = {{2008}}, }