9 research outputs found
Multi-objective biopharma capacity planning under uncertainty using a flexible genetic algorithm approach
This paper presents a flexible genetic algorithm optimisation approach for multi-objective biopharmaceutical planning problems under uncertainty. The optimisation approach combines a continuous-time heuristic model of a biopharmaceutical manufacturing process, a variable-length multi-objective genetic algorithm, and Graphics Processing Unit (GPU)-accelerated Monte Carlo simulation. The proposed approach accounts for constraints and features such as rolling product sequence-dependent changeovers, multiple intermediate demand due dates, product QC/QA release times, and pressure to meet uncertain product demand on time. An industrially-relevant case study is used to illustrate the functionality of the approach. The case study focused on optimisation of conflicting objectives, production throughput, and product inventory levels, for a multi-product biopharmaceutical facility over a 3-year period with uncertain product demand. The advantages of the multi-objective GA with the embedded Monte Carlo simulation were demonstrated by comparison with a deterministic GA tested with Monte Carlo simulation post-optimisation
Proceedings / 17. Workshop Computational Intelligence [Elektronische Ressource] : Dortmund, 5. - 7. Dezember 2007
Dieser Tagungsband enthĂ€lt die BeitrĂ€ge des 17. Workshops âComputational Intelligenceâ des Fachausschusses 5.14 der VDI/VDE-Gesellschaft fĂŒr Mess- und Automatisierungstechnik (GMA) und der Fachgruppe âFuzzy-Systeme und Soft-Computingâ der Gesellschaft fĂŒr Informatik (GI), der vom 5. â 7. Dezember 2007 im Haus Bommerholz bei Dortmund stattfindet. Der GMA-Fachausschuss 5.14 âComputational Intelligenceâ entstand 2005 aus den bisherigen FachausschĂŒssen âNeuronale Netze und EvolutionĂ€re Algorithmenâ (FA 5.21) sowie âFuzzy Controlâ (FA 5.22). Der Workshop steht in der Tradition der bisherigen Fuzzy-Workshops, hat aber seinen Fokus in den letzten Jahren schrittweise erweitert. Die Schwerpunkte sind Methoden, Anwendungen und Tools fĂŒr âą Fuzzy-Systeme, âą KĂŒnstliche Neuronale Netze, âą EvolutionĂ€re Algorithmen und âą Data-Mining-Verfahren sowie der Methodenvergleich anhand von industriellen und Benchmark-Problemen. INHALTSVERZEICHNIS T. Fober, E. HĂŒllermeier, M. Mernberger (Philipps-UniversitĂ€t Marburg): Evolutionary Construction of Multiple Graph Alignments for the Structural Analysis of Biomolecules G. Heidemann, S. Klenk (UniversitĂ€t Stuttgart): Visual Analytics for Image Retrieval F. RĂŒgheimer (OvG-UniversitĂ€t Magdeburg): A Condensed Representation for Distributions over Set-Valued Attributes T. Mrziglod (Bayer Technology Services GmbH, Leverkusen): Mit datenbasierten Technologien und Versuchsplanung zu erfolgreichen Produkten H. Schulte (Bosch Rexroth AG, Elchingen): Approximationsgenauigkeit und dynamisches Fehlerwachstum der Modellierung mit Takagi-Sugeno Fuzzy Systemen C. Burghart, R. Mikut, T. Asfour, A. Schmid, F. Kraft, O. Schrempf, H. Holzapfel, R. Stiefelhagen, A. Swerdlow, G. Bretthauer, R. Dillmann (UniversitĂ€t Karlsruhe, Forschungszentrum Karlsruhe GmbH): Kognitive Architekturen fĂŒr humanoide Roboter: Anforderungen, Ăberblick und Vergleich R. Mikut, C. Burghart, A. Swerdlow (Forschungszentrum Karlsruhe GmbH, UniversitĂ€t Karlsruhe): Ein Gedankenexperiment zum Entwurf einer integrierten kognitiven Architektur fĂŒr humanoide Roboter G. Milighetti, H.-B. Kuntze (FhG IITB Karlsruhe): Diskret-kontinuierliche Regelung und Ăberwachung von Robotern basierend auf Aktionsprimitiven und Petri-Netzen N. Rosemann, W. Brockmann (UniversitĂ€t OsnabrĂŒck): Kontrolle dynamischer Eigenschaften des Online-Lernens in Neuro-Fuzzy-Systemen mit dem SILKE-Ansatz A. Hans, D. SchneegaĂ, A. SchĂ€fer, S. Udluft (Siemens AG, TU Ilmenau): Sichere Exploration fĂŒr Reinforcement-Learning-basierte Regelung Th. Bartz-Beielstein, M. Bongards, C. Claes, W. Konen, H. Westenberger (FH Köln): Datenanalyse und Prozessoptimierung fĂŒr Kanalnetze und KlĂ€ranlagen mit CI-Methoden S. Nusser, C. Otte, W. Hauptmann (Siemens AG, OvG-UniversitĂ€t Magdeburg): Learning Binary Classifiers for Applications in Safety-Related Domains W. Jakob, A. Quinte, K.-U. Stucky, W. SĂŒĂ, C. Blume (Forschungszentrum Karlsruhe GmbH; FH Köln, Campus Gummersbach) Schnelles Resource Constrained Project Scheduling mit dem EvolutionĂ€ren Algorithmus GLEAM M. PreuĂ, B. Naujoks (UniversitĂ€t Dortmund): EvolutionĂ€re mehrkriterielle Optimierung bei Anwendungen mit nichtzusammenhĂ€ngenden Pareto-Mengen G. Rudolph, M. PreuĂ (UniversitĂ€t Dortmund): in mehrkriterielles Evolutionsverfahren zur Bestimmung des Phasengleichgewichts von gemischten FlĂŒssigkeiten Y. Chen, O. Burmeister, C. Bauer, R. Rupp, R. Mikut (UniversitĂ€t Karlsruhe, Forschungszentrum Karlsruhe GmbH, OrthopĂ€dische UniversitĂ€tsklinik Heidelberg): First Steps to Future Applications of Spinal Neural Circuit Models in Neuroprostheses and Humanoid Robots F. Hoffmann, J. Braun, T. Bertram, S. Hölemann (UniversitĂ€t Dortmund, RWTH Aachen): Multikriterielle Optimierung mit modellgestĂŒtzten Evolutionsstrategien S. Piana, S. Engell (UniversitĂ€t Dortmund): EvolutionĂ€re Optimierung des Betriebs von rohrlosen Chemieanlagen T. Runkler (Siemens AG, CT IC 4): Pareto Optimization of the Fuzzy câMeans Clustering Model Using a MultiâObjective Genetic Algorithm H. J. Rommelfanger (J.W. Goethe-UniversitĂ€t Frankfurt am Main): Die Optimierung von Fuzzy-Zielfunktionen in Fuzzy (Mehrziel-) LPSystemen - Ein kritischer Ăberblick D. Gamrad, D. Söffker (UniversitĂ€t Duisburg-Essen): Formalisierung menschlicher Interaktionen durch Situations-Operator- Modellbildung S. Ritter, P. Bretschneider (FhG AST Ilmenau): Optimale Planung und BetriebsfĂŒhrung der Energieversorgung im liberalisierten Energiemarkt R. Seising (Medizinische UniversitĂ€t Wien): Heinrich Hertz, Ludwig Wittgenstein und die Fuzzy-Strukturen - Eine kleine âBildergeschichteâ zur Erkenntnisphilosophie J. Limberg, R. Seising (Medizinische UniversitĂ€t Wien): Sequenzvergleiche im Fuzzy-Hypercube M. Steinbrecher, R. Kruse (OvG-UniversitĂ€t Magdeburg): Visualisierung temporaler AbhĂ€ngigkeiten in Bayesschen Netzen M. Schneider, R. Tillmann, U. Lehmann, J. Krone, P. Langbein, U. Stark, J. Schrickel, Ch. Ament, P. Otto (FH SĂŒdwestfalen, Airbus Deutschland GmbH, Hamburg, TU Ilmenau): KĂŒnstliches Neuronales Netz zur Analyse der Geometrie von groĂflĂ€chig gekrĂŒmmten Bauteilen C. Frey (FhG IITB Karlsruhe): Prozessdiagnose und Monitoring feldbusbasierter Automatisierungsanlagen mittels selbstorganisierender Karte
AN ASSESSMENT OF THE EFFICACY AND COST OF ALTERNATIVE CARBON MITIGATION POLICIES FOR THE STATE OF INDIANA
A nation-wide climate policy targeting the power sector might lead to dramatic changes to Indiana\u27s electricity generation system. This is because Indiana relies heavily on coal as its primary source for electricity generation and coal is much more carbon-intensive than other fossil fuels. In the possible event that Indiana will have to take action on carbon mitigation, for example because of a national climate policy in the future, it is important for state policymakers to understand the costs and efficacy of alternative strategies. In addition, assessing the impacts of the policy alternatives on Indiana serves as guidance for the national policy design process regarding the subnational impacts
Control of free-ranging automated guided vehicles in container terminals
Container terminal automation has come to the fore during the last 20 years to improve their efficiency. Whereas a high level of automation has already been achieved in vertical handling operations (stacking cranes), horizontal container transport still has disincentives to the adoption of automated guided vehicles (AGVs) due to a high degree of operational complexity of vehicles. This feature has led to the employment of simple AGV control techniques while hindering the vehicles to utilise their maximum operational capability. In AGV dispatching, vehicles cannot amend ongoing delivery assignments although they have yet to receive the corresponding containers. Therefore, better AGV allocation plans would be discarded that can only be achieved by task reassignment. Also, because of the adoption of predetermined guide paths, AGVs are forced to deploy a highly limited range of their movement abilities while increasing required travel distances for handling container delivery jobs. To handle the two main issues, an AGV dispatching model and a fleet trajectory planning algorithm are proposed. The dispatcher achieves job assignment flexibility by allowing AGVs towards to container origins to abandon their current duty and receive new tasks. The trajectory planner advances Dubins curves to suggest diverse optional paths per origin-destination pair. It also amends vehicular acceleration rates for resolving conflicts between AGVs. In both of the models, the framework of simulated annealing was applied to resolve inherent time complexity. To test and evaluate the sophisticated AGV control models for vehicle dispatching and fleet trajectory planning, a bespoke simulation model is also proposed. A series of simulation tests were performed based on a real container terminal with several performance indicators, and it is identified that the presented dispatcher outperforms conventional vehicle dispatching heuristics in AGV arrival delay time and setup travel time, and the fleet trajectory planner can suggest shorter paths than the corresponding Manhattan distances, especially with fewer AGVs.Open Acces
Pilotage optimal des utilités industrielles : méthodologie et processus décisionnel reposant sur le formalisme ERTN
Longtemps considĂ©rĂ©e comme un objectif secondaire, la gestion optimale des utilitĂ©s (Ă©nergie, eau, etc.) sur les sites industriels est dĂ©sormais un enjeu Ă©conomique et environnemental majeur. Outre la dynamique importante du marchĂ© des combustibles et les quotas dâĂ©missions de CO2, les sites industriels doivent faire face Ă de nombreuses contraintes dâordre technique, organisationnel et rĂ©glementaire. Dans le mĂȘme temps, les exploitants cherchent Ă tirer profit des opportunitĂ©s de valorisation Ă©conomique des flux Ă©nergĂ©tiques co-produits proposĂ©es par le marchĂ©. Des outils logiciels qualifiĂ©s de SystĂšmes de Management de l'Energie (SME) sont proposĂ©s aux industriels pour faciliter la gestion de ces systĂšmes multifactoriels. Actuellement, la plupart des applications disponibles sur le marchĂ© proposent essentiellement des fonctions de suivi en temps-rĂ©el (visualisation, Ă©valuation dâindicateurs de performance). Sâil sâagit dâune premiĂšre Ă©tape, la variabilitĂ© des besoins et les contraintes opĂ©rationnelles des Ă©quipements ont fait naĂźtre le besoin dâanticiper et de planifier la production des utilitĂ©s pour optimiser la performance industrielle. Inclure un outil dâoptimisation des flux au sein des SME de nouvelle gĂ©nĂ©ration permet de proposer de vĂ©ritables solutions d'aide Ă la dĂ©cision pour le pilotage et le contrĂŽle de performance des systĂšmes industriels. Lâintroduction dâune telle fonction nĂ©cessite la mise en place dâun « jumeau numĂ©rique » de lâunitĂ© considĂ©rĂ©e. Du point de vue des dĂ©veloppeurs de solutions, un des enjeux est de disposer dâoutils de modĂ©lisation des processus de production, gĂ©nĂ©raux et flexibles, qui leur permettent de rĂ©duire les temps de dĂ©veloppement des applications tierces. Câest prĂ©cisĂ©ment dans cet objectif que ces travaux de thĂšse ont Ă©tĂ© menĂ©s. Si le modĂšle exĂ©cutable au cĆur de lâapplication sâappuie sur une formulation de Programmation LinĂ©aire Mixte (PLM), un des principes fondateurs de ces travaux est de proposer aux dĂ©veloppeurs un modĂšle graphique formel de description de tout systĂšme de production. Ce niveau dâabstraction fait lâinterface entre la reprĂ©sentation « mĂ©tier » et le modĂšle exĂ©cutable et Ă©vite en grande partie la rĂ©Ă©criture des Ă©quations fondamentales communes Ă tout processus industriel. Cette approche conceptuelle qui se veut la plus gĂ©nĂ©rique possible, est mise en Ćuvre grĂące au formalisme Extended Resource-Task Network (ERTN) Sur le plan pratique, ces concepts ont Ă©tĂ© intĂ©grĂ©s Ă des composants logiciels permettant le prototypage rapide et le dĂ©veloppement dâapplications dĂ©diĂ©es au pilotage et Ă lâanalyse de la performance des systĂšmes Ă©nergĂ©tiques. La pertinence et lâapplicabilitĂ© des outils dĂ©veloppĂ©s dans cette thĂšse ont Ă©tĂ© prouvĂ©es par leur mise en application sur diffĂ©rentes unitĂ©s industrielles rĂ©elles, dont la centrale dâutilitĂ©s d'un site de pĂ©trochimie-raffinage en France. Ce site, dont la partie production d'utilitĂ©s est composĂ©e de plus de 50 Ă©quipements de production, possĂšde aussi la plus grande unitĂ© française de cogĂ©nĂ©ration (d'une puissance de 250 mĂ©gawatts Ă©lectriques
The Music Sound
A guide for music: compositions, events, forms, genres, groups, history, industry, instruments, language, live music, musicians, songs, musicology, techniques, terminology , theory, music video.
Music is a human activity which involves structured and audible sounds, which is used for artistic or aesthetic, entertainment, or ceremonial purposes.
The traditional or classical European aspects of music often listed are those elements given primacy in European-influenced classical music: melody, harmony, rhythm, tone color/timbre, and form. A more comprehensive list is given by stating the aspects of sound: pitch, timbre, loudness, and duration.
Common terms used to discuss particular pieces include melody, which is a succession of notes heard as some sort of unit; chord, which is a simultaneity of notes heard as some sort of unit; chord progression, which is a succession of chords (simultaneity succession); harmony, which is the relationship between two or more pitches; counterpoint, which is the simultaneity and organization of different melodies; and rhythm, which is the organization of the durational aspects of music