@article{5679, abstract = {{Cloud computing promises the flexible delivery of computing services in a pay-as-you-go manner. It allows customers to easily scale their infrastructure and save on the overall cost of operation. However Cloud service offerings can only thrive if customers are satisfied with service performance. Allow-ing instantaneous access and flexible scaling while maintaining the service levels and offering competitive prices poses a significant challenge to Cloud Computing providers. Furthermore services will remain available in the long run only if this business generates a stable revenue stream. To address these challenges we introduce novel policy-based service admission control mod-els that aim at maximizing the revenue of Cloud providers while taking in-formational uncertainty regarding resource requirements into account. Our evaluation shows that policy-based approaches statistically significantly out-perform first come first serve approaches, which are still state of the art. Furthermore the results give insights in how and to what extent uncertainty has a negative impact on revenue.}}, author = {{Püschel, Tim and Schryen, Guido and Hristova, Diana and Neumann, Dirk}}, journal = {{European Journal of Operational Research}}, keywords = {{admission control, informational uncertainty, revenue management, cloud computing}}, number = {{2}}, pages = {{637--647}}, publisher = {{Elsevier}}, title = {{{Revenue Management for Cloud Computing Providers: Decision Models for Service Admission Control under Non-probabilistic Uncertainty}}}, volume = {{244}}, year = {{2015}}, } @inproceedings{9949, abstract = {{Intelligent mechatronic systems other the possibility to adapt system behavior to current dependability. This can be used to assure reliability by controlling system behavior to reach a pre-defined lifetime. By using such closed loop control, the margin of error of useful lifetime of an individual system is lowered. It is also possible to change the pre-defined lifetime during operation, by adapting system behavior to derate component usage. When planning maintenance actions, the remaining useful lifetime of each individual system has to be taken into account. Usually, stochastic properties of a fleet of systems are analyzed to create maintenance plans. Among these, the main factor is the probability of an individual system to last until maintenance. If condition-based maintenance is used, this is updated for each individual system using available information about its current state. By lowering the margin of error of useful lifetime, which directly corresponds to the time until maintenance, extended maintenance periods are made possible. Also using reliability-adaptive operation, a reversal of degradation driven maintenance planning is possible where a maintenance plan is setup not only according to system properties, but mainly to requirements imposed by maintenance personnel or infrastructure. Each system then adapts its behavior accordingly and fails according to the maintenance plan, making better use of maintenance personnel and system capabilities at the same time. In this contribution, the potential of maintenance plan driven system behavior adaptation is shown. A model including adaptation process and maintenance actions is simulated over full system lifetime to assess the advantages gained.}}, author = {{Meyer, Tobias and Kaul, Thorben and Sextro, Walter}}, booktitle = {{Proceedings of the 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes}}, keywords = {{Adaptive systems, Reliability analysis, Availability, Adaptive control, Maintenance, Self-optimizing systems, Self-optimizing control, Stochastic Petri-nets}}, pages = {{940--945}}, title = {{{Advantages of reliability-adaptive system operation for maintenance planning}}}, doi = {{10.1016/j.ifacol.2015.09.647}}, year = {{2015}}, } @article{30601, author = {{Solanki, Jitendra and Fröhleke, Norbert and Böcker, Joachim and Duppe, Gregor and Averberg, Andreas and Wallmeier, Peter}}, issn = {{0093-9994}}, journal = {{IEEE Transactions on Industry Applications}}, keywords = {{Electrical and Electronic Engineering, Industrial and Manufacturing Engineering, Control and Systems Engineering}}, number = {{5}}, pages = {{3995--4005}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{Voltage-Sequence-Control-Based High-Current Rectifier System}}}, doi = {{10.1109/tia.2015.2422772}}, volume = {{51}}, year = {{2015}}, } @article{39479, author = {{Vidor, Fábio and Meyers, Thorsten and Hilleringmann, Ulrich}}, issn = {{2079-9292}}, journal = {{Electronics}}, keywords = {{Electrical and Electronic Engineering, Computer Networks and Communications, Hardware and Architecture, Signal Processing, Control and Systems Engineering}}, number = {{3}}, pages = {{480--506}}, publisher = {{MDPI AG}}, title = {{{Flexible Electronics: Integration Processes for Organic and Inorganic Semiconductor-Based Thin-Film Transistors}}}, doi = {{10.3390/electronics4030480}}, volume = {{4}}, year = {{2015}}, } @article{30554, author = {{Mathapati, Shashidhar and Böcker, Joachim}}, issn = {{0278-0046}}, journal = {{IEEE Transactions on Industrial Electronics}}, keywords = {{Electrical and Electronic Engineering, Control and Systems Engineering}}, number = {{3}}, pages = {{885--895}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{Analytical and Offline Approach to Select Optimal Hysteresis Bands of DTC for PMSM}}}, doi = {{10.1109/tie.2012.2189530}}, volume = {{60}}, year = {{2012}}, } @article{4378, abstract = {{Using a combined all-ultra-high-vacuum process employing lateral patterning with focused ion beams and molecular beam epitaxy, site-selective growth of single (In,Ga)As quantum dots is achieved. We have embedded such a layer of intentionally positioned quantum dots in the intrinsic region of a p-i-n junction so that the quantum dots can be driven electrically. In this contribution, we will present our results on the morphological properties of the ion-beam modified surface on which the quantum dot nucleation occurs together with a characterization of the electrical and optoelectronic properties. We will demonstrate that a single, individual quantum dot can directly be electrically addressed.}}, author = {{Mehta, Minisha and Reuter, Dirk and Wieck, Andreas D. and Michaelis de Vasconcellos, Steffen and Zrenner, Artur and Meier, Cedrik}}, issn = {{1862-6351}}, journal = {{physica status solidi (c)}}, keywords = {{molecular beam epitaxy, quantum dot, site control, electroluminescence}}, number = {{4}}, pages = {{1182--1185}}, publisher = {{Wiley}}, title = {{{Electrically driven intentionally positioned single quantum dot}}}, doi = {{10.1002/pssc.201000828}}, volume = {{8}}, year = {{2011}}, } @inproceedings{9763, abstract = {{Recent advances in information processing enable new kinds of technical systems, called self-optimizing systems. These systems are able to adapt their objectives and their behavior according to the current situation and influences autonomously. This behavior adaptation is non-deterministic and hence self-optimization is a risk to the system, e.g. if the result of the self-optimization process does not match the suddenly changed situation. In contrary, self-optimization could be used to increase the dependability by pursuing objectives like reliability and availability. In our preceding publications we introduced the so called multi-level dependability concept to cope with this new kind of systems (cf. [6]). This concept comprises the monitoring of the system behavior, the classification of the current situation, and the selection of the appropriate measure, if reliability limits are exceeded. In this paper we present for the first time experimental results. The dependability concept is implemented in the self-optimizing active guidance system of a railway vehicle. The test drives illustrate clearly that the proposed concept is able to cope with, e.g., sensor failures, and is able to increase the reliability and availability of the active guidance module.}}, author = {{Sondermann-Wölke, Christoph and Geisler, Jens and Sextro, Walter}}, booktitle = {{Reliability and Maintainability Symposium (RAMS), 2010 Proceedings - Annual}}, issn = {{0149-144X}}, keywords = {{availability, dependability concept, multilevel dependability concept, railway vehicle, reliability, self optimizing active guidance system, self optimizing railway guidance system, situation classification, system behavior monitoring, optimal control, railways, reliability theory, self-adjusting systems}}, pages = {{1 --6}}, title = {{{Increasing the reliability of a self-optimizing railway guidance system}}}, doi = {{10.1109/RAMS.2010.5448080}}, year = {{2010}}, } @article{30536, author = {{Grotstollen, Horst}}, issn = {{0093-9994}}, journal = {{IEEE Transactions on Industry Applications}}, keywords = {{Electrical and Electronic Engineering, Industrial and Manufacturing Engineering, Control and Systems Engineering}}, number = {{1}}, pages = {{144--152}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{Optimal Design of Motor and Gear for Drives With High Acceleration by Consideration of Torque–Speed and Torque–Acceleration Product}}}, doi = {{10.1109/tia.2010.2091479}}, volume = {{47}}, year = {{2010}}, } @inproceedings{37037, abstract = {{Today we can identify a big gap between requirement specification and the generation of test environments. This article extends the Classification Tree Method for Embedded Systems (CTM/ES) to fill this gap by new concepts for the precise specification of stimuli for operational ranges of continuous control systems. It introduces novel means for continuous acceptance criteria definition and for functional coverage definition.}}, author = {{Krupp, Alexander and Müller, Wolfgang}}, booktitle = {{Proceedings of DATE’10}}, keywords = {{System testing, Automatic testing, Object oriented modeling, Classification tree analysis, Automotive engineering, Mathematical model, Embedded system, Control systems, Electronic equipment testing, Software testing}}, location = {{Dresden}}, publisher = {{IEEE}}, title = {{{A Systematic Approach to Combined HW/SW System Test}}}, doi = {{10.1109/DATE.2010.5457186}}, year = {{2010}}, } @article{43503, author = {{Kröger, Claus and Böcker, Joachim and Neiß, Konstantin}}, issn = {{0178-2312}}, journal = {{at - Automatisierungstechnik}}, keywords = {{Electrical and Electronic Engineering, Computer Science Applications, Control and Systems Engineering}}, number = {{10}}, pages = {{542--545}}, publisher = {{Walter de Gruyter GmbH}}, title = {{{Elektromobilität — ein aktuelles Forschungsfeld insbesondere der Regelungstechnik}}}, doi = {{10.1524/auto.2010.9082}}, volume = {{58}}, year = {{2010}}, } @inproceedings{24065, author = {{Pottebaum, Jens and Japs, Anna Maria and Prödel, Stephan and Koch, Rainer}}, booktitle = {{ISCRAM 2010 -- 7th International Conference on Information Systems for Crisis Response and Management}}, editor = {{French, Simon and Tomaszewski, Brian and Zobel, Chris}}, keywords = {{Command and control process, Command and control systems, Design and modeling, Domain ontologies, Emergency response, Fire extinguishers, Fire protection, Heterogeneous domains, Information analysis, Information sharing, Information systems, Interoperability, Ontology language, Semantic technologies, Semantic Web, Semantics}}, title = {{{Design and modeling of a domain ontology for fire protection}}}, year = {{2010}}, } @article{28964, abstract = {{The relevance of top-down information in the deployment of attention has more and more been emphasized in cognitive psychology. We present recent findings about the dynamic of these processes and also demonstrate that task relevance can be adjusted rapidly by incoming bottom-up information. This adjustment substantially increases performance in a subsequent task. Implications for artificial visual models are discussed.}}, author = {{Hilkenmeier, Frederic and Tünnermann, Jan and Scharlau, Ingrid}}, journal = {{KI 2009: Advances in Artificial Intelligence. Proceedings of the 32nd Annual Conference on Artificial Intelligence.}}, keywords = {{visuo-spatial attention, top-down control, task relevance, artificial visual attention, attentional blink}}, title = {{{Early Top-Down Influences in Control of Attention: Evidence from the Attentional Blink}}}, year = {{2009}}, } @article{9571, abstract = {{Several positioning tasks demand translatory drive instead of rotary motion. To achieve drives that are capable, e.g., to drive the sunroof of a car or to lift a car's window, multiple miniaturized motors can be combined. But in this case many other questions arise: The electromechanical behavior of the individual motors differs slightly, the motor characteristics are strongly dependent on the driving parameters and the driven load, many applications need some extra power for special cases like overcoming higher forces periodically. Thus, the bundle of motors has to act well-organized and at last controlled to get an optimized drive that is not oversized and costly.}}, author = {{Mracek, Maik and Hemsel, Tobias and Sattel, Thomas and Vasiljev, Piotr and Wallaschek, Jörg}}, issn = {{1385-3449}}, journal = {{Journal of Electroceramics}}, keywords = {{Ultrasonic linear motor, High power, Control, Modeling, Characteristics}}, number = {{3-4}}, pages = {{153--158}}, publisher = {{Springer US}}, title = {{{Driving concepts for bundled ultrasonic linear motors}}}, doi = {{10.1007/s10832-007-9123-5}}, volume = {{20}}, year = {{2008}}, } @inproceedings{9576, abstract = {{In neurosurgery, delineation of tumor boundaries during resection of brain tumors is of substantial relevance. During operation distinction between tumor and healthy tissue rely on the abilities of the surgeon based on visual and tactile differentiation. In this paper a high sensitivity actuator-sensor system using a piezoelectric bimorph is presented. Frequency shift and transfer function of the bimorphpsilas voltages are detected and evaluated. Sensorpsilas sensitivity is evaluated using two frequency controls strategies: A phase-locked loop (PLL) and a self-oscillating circuit. Results of measurements conducted on gel-phantoms are presented and discussed.}}, author = {{Uribe, David Oliva and Stroop, Ralf and Hemsel, Tobias and Wallaschek, Jörg}}, booktitle = {{Frequency Control Symposium, 2008 IEEE International}}, issn = {{1075-6787}}, keywords = {{biomedical measurement, brain, cancer, neurophysiology, phantoms, phase locked loops, piezoelectric actuators, surgery, tactile sensors, transfer functions, tumours, PLL, biomedical tissue differentiation system, brain tumor resection, frequency control, frequency shift, gel-phantom, high sensitivity actuator-sensor system, neurosurgery, phase-locked loop, piezoelectric actuators, piezoelectric bimorph, self-oscillating circuit, sensor sensitivity, tactile differentiation, tactile sensor system, transfer function, tumor boundary, visual differentiation, Biomedical measurements, Circuits, Frequency control, Neoplasms, Neurosurgery, Phase locked loops, Piezoelectric actuators, Surges, Transfer functions, Voltage}}, pages = {{91--94}}, title = {{{Development of a biomedical tissue differentiation system using piezoelectric actuators}}}, doi = {{10.1109/FREQ.2008.4622963}}, year = {{2008}}, } @article{29924, author = {{Amann, Notker and Böcker, Joachim and Prenner, Franz}}, issn = {{1083-4435}}, journal = {{IEEE/ASME Transactions on Mechatronics}}, keywords = {{Electrical and Electronic Engineering, Computer Science Applications, Control and Systems Engineering}}, number = {{4}}, pages = {{697--700}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{Active Damping of Drive Train Oscillations for an Electrically Driven Vehicle}}}, doi = {{10.1109/tmech.2004.839036}}, volume = {{9}}, year = {{2004}}, } @article{6065, abstract = {{In the direct parameter specification (DPS) mode of sensorimotor control, response parameters can be specified by stimuli that are not consciously perceived [Psychological Research/Psychologische Forschung 52 (1990) 207]. DPS is contingent on the current intentions. The invisible stimuli can be processed for the purposes of sensorimotor control only if they match the actual intentions, for example, share task-relevant features. The present experiments explore whether attentional capture by masked abrupt-onset stimuli is mediated via DPS. Participants judged which of two visual targets appeared first. Masked primes preceded one of the targets. The primes were either similar to the targets or not, in shape, or in color. Target-like (task-relevant), but not distractor-like (task-irrelevant), primes facilitated perceptual latencies of targets trailing at their positions. Thus, the latency effects resulted from DPS of an attention shift, rather than from bottom-up capture or from top-down }}, author = {{Scharlau, Ingrid and Ansorge, Ulrich}}, issn = {{0042-6989}}, journal = {{Vision Research}}, keywords = {{direct parameter specification, DPS, attention shift, latency priming, sensorimotor control, stimuli, task-relevant features, visual targets, color, shape, latency effects, Adult, Attention, Discrimination (Psychology), Female, Humans, Judgment, Male, Perceptual Masking, Reaction Time, Visual Perception, Attention, Perceptual Motor Processes, Response Latency, Stimulus Onset, Visual Stimulation, Form and Shape Perception, Sensory Adaptation}}, number = {{12}}, pages = {{1351 -- 1363}}, title = {{{Direct parameter specification of an attention shift: Evidence from perceptual latency priming.}}}, volume = {{43}}, year = {{2003}}, } @article{29998, author = {{Böcker, Joachim and Janning, Jörg and Jebenstreit, Helmut}}, issn = {{0278-0046}}, journal = {{IEEE Transactions on Industrial Electronics}}, keywords = {{Electrical and Electronic Engineering, Control and Systems Engineering}}, number = {{5}}, pages = {{1081--1092}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{High dynamic control of a three-level voltage-source-converter drive for a main strip mill}}}, doi = {{10.1109/tie.2002.803220}}, volume = {{49}}, year = {{2002}}, } @inproceedings{39474, abstract = {{Agent-based systems technologies are of emerging interest in the specification and implementation of complex systems. This article introduces the CASA agent development system which seamlessly combines the BDI (belief desire intention) approach with the FIPA agent communication language standard and an integrated specification of fuzzy controllers. The behavior of agents is defined by strategies which basically correspond to extended guarded Horn clauses with priorities. The presented concepts are introduced by an example from computer integrated manufacturing (CIM). The example gives the specification of a fuzzy controller for a manufacturing station in the context of a holonic manufacturing system (HMS).}}, author = {{Flake, Stephan and Geiger, Christian and Lehrenfeld, G. and Müller, Wolfgang and Paelke, Volker}}, booktitle = {{Proceedings of NAFIPS'99, 18th International Conference of the North American Fuzzy Information Processing Society}}, isbn = {{0-7803-5211-4}}, keywords = {{Manufacturing systems, Fuzzy control, Multiagent systems, Control systems, Concurrent computing, Specification languages, Communication standards, Standards development, Communication system control, Computer integrated manufacturing}}, location = {{New York, NY, USA }}, publisher = {{IEEE}}, title = {{{Agent-Based Modeling for Holonic Manufacturing Systems with Fuzzy Control}}}, doi = {{10.1109/NAFIPS.1999.781697}}, year = {{1999}}, } @inproceedings{39510, abstract = {{Modeling of human knowledge and reasoning requires the formulation of uncertainty in its various forms. Fuzzy logic was introduced to directly support these applications (H. Zimmermann, 1991). Fuzzy control (FC) which is based on fuzzy logic allows one to control complex systems based on qualitative information like human knowledge (C. Geiger and G. Lehrenfeld, 1994). In fuzzy logic, fuzzy sets are usually defined and manipulated by means of complex mathematics, whereas the fuzzy control process is frequently outlined by visual sketches based on set diagrams in order to enhance the comprehension of the inference process. The rule based execution of this process usually follows the lines of rule based visual programming languages (VPLs), i.e., languages comparable to Agentsheets and ChemTrains. This strongly indicates that VPLs are thus well applicable for this use. We first outline the basic concepts of fuzzy logic and fuzzy control. Thereafter, we sketch a visual language which integrates fuzzy set diagrams in the visual representation of rules. The basic concepts are inherited from the complete visual programming language, Pictorial Janus (PJ). However, we significantly simplify PJ's visual concepts in order to adapt it for our purpose.}}, author = {{Dücker, M. and Geiger, Christian and Lehrenfeld, Georg and Müller, Wolfgang and Tahedl, C.}}, booktitle = {{Proceedings of the 1997 IEEE Symposium on Visual Languages}}, isbn = {{0-8186-8144-6}}, keywords = {{Computer languages, Fuzzy control, Fuzzy sets, Animation, Visualization, Fires, Application software, Pattern matching, Impedance matching, Domain specific languages}}, title = {{{A Visual Programming Language for Qualitative Data}}}, doi = {{10.1109/VL.1997.626593}}, year = {{1997}}, } @inproceedings{39526, abstract = {{The main goal of the article is to evaluate the suitability of visual programming languages, i.e., Pictorial Janus (K. Kahn and V. Saraswat, 1990), for the modeling of complex systems and their control strategies. These systems can be seen as networks of communicating objects. Objects select strategies for suitable actions based on incoming messages. Our field of investigation is in computer integrated manufacturing considering the example of a car manufacturing cell. This color sorting assembly buffer (CSAB) schedules jobs in queues. The jobs represent car bodies scheduled in feeder lines for the enameling. Feeder lines collect raw bodies to blocks. Blocks are bodies which are to be enameled by the same color. This organization decreases the cost of expensive change-over-times when changing colors at the enamelling. Blocks of bodies are dislocated from the queue and enameled successively. Contradictory system goals, such as minimizing color changes and preserving the sequence of incoming jobs, have to be regarded by appropriate control strategies. Due to the complexity of this (NP complete) problem and to real time requirements for online control there are no optimal strategies on hand. Consequently, suitable heuristics have to be developed. Often they are designed applying a trial-and-error method. A modeling framework has to support the rapid prototyping of these systems as well as an expressive end user oriented representation. Both are essential requirements since end users need other visualization techniques than experienced designers due to their different knowledge and interests.}}, author = {{Geiger, Christian and Hunstock, R. and Lehrenfeld, Georg and Müller, Wolfgang and Quintanilla, J. and Tahedl, C. and Weber, A.}}, booktitle = {{Proceedings of the 1996 IEEE Symposium on Visual Languages}}, isbn = {{0-8186-7508-X}}, keywords = {{Computer integrated manufacturing, Job shop scheduling, Processor scheduling, Computer languages, Control system synthesis, Computer aided manufacturing, Sorting, Assembly, Costs, Control systems}}, title = {{{Visual Modeling and 3D-Representation with a Complete Visual Programming Language --- A Case Study in Manufacturing}}}, doi = {{10.1109/VL.1996.545302}}, year = {{1996}}, }