11 research outputs found

    IT-basiertes Audit-Management in der Praxis

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    Mittels Software-Einsatz kann das Audit-Management unterstĂŒtzt werden. Insbesondere durch die Anbindung an ein ERP-System können Audit-Prozesse effizienter werden, indem Kennzahlen vom ERP System direkt in die Audit-Auswertung einfließen

    Satisfying flexible due dates in fuzzy job shop by means of hybrid evolutionary algorithms

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    This paper tackles the job shop scheduling problem with fuzzy sets modelling uncertain durations and flexible due dates. The objective is to achieve high-service level by maximising due-date satisfaction, considering two different overall satisfaction measures as objective functions. We show how these functions model different attitudes in the framework of fuzzy multicriteria decision making and we define a measure of solution robustness based on an existing a-posteriori semantics of fuzzy schedules to further assess the quality of the obtained solutions. As solving method, we improve a memetic algorithm from the literature by incorporating a new heuristic mechanism to guide the search through plateaus of the fitness landscape. We assess the performance of the resulting algorithm with an extensive experimental study, including a parametric analysis, and a study of the algorithm’s components and synergy between them. We provide results on a set of existing and new benchmark instances for fuzzy job shop with flexible due dates that show the competitiveness of our method.This research has been supported by the Spanish Government under research grant TIN2016-79190-R

    Production Scheduling Requirements to Smart Manufacturing

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    The production scheduling has attracted a lot of researchers for many years, however most of the approaches are not targeted to deal with real manufacturing environments, and those that are, are very particular for the case study. It is crucial to consider important features related with the factories, such as products and machines characteristics and unexpected disturbances, but also information such as when the parts arrive to the factory and when should be delivered. So, the purpose of this paper is to identify some important characteristics that have been considered independently in a lot of studies and that should be considered together to develop a generic scheduling framework to be used in a real manufacturing environment.authorsversionpublishe

    Neue raeumliche Naehe Zur Qualitaet der Suburbanisierung im Entwicklungskorridor Leipzig-Halle. Abschlussbericht

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    Available from TIB Hannover: RR 6252(2000,18) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

    Carbochemie im Raum Halle/Merseburg: Technikfolgenabschaetzung: Teilprojekt 1 Chemische Technik und stoffwirtschaftliche Verflechtung. Abschlussbericht

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    Technology assessment studies of carbochemical production structures in the industrial region Halle/Merseburg focus on the carbideacetylene-line in the BUNA AG which has been operated for many years. The consequences of the shutdown of this ecologically harmful technology are presented. The disused production structures were figured. Production data observed in the period at 1989 to the middle of 1991 characterizes the shutdown process. Energy and material balances provide information about the economical consequences of the shutdown. More research-requirements necessary to minimize the remaining risks after shutdown are represented. (orig.)Untersuchungen zur Technikfolgenabschaetzung von carbochemischen Produktionsstrukturen in der Chemieregion Halle/Merseburg konzentrieren sich auf die in der BUNA AG seit Jahren betriebene Carbid-Acetylen-Linie. Die Folgen des Ausstiegs aus dieser stark umweltgefaehrdenden Technologie werden analysiert, das von der Stillegung betroffene Produktionssystem wird in seiner Verflechtung dargestellt. Durch Erfassung von Produktionskennwerten fuer den Zeitraum 1989 bis Mitte 1991 wird der Prozess des Ausstiegs aus der Carbochemie charakterisiert. Uebersichten zu Energie- und Stoffverbraeuchen geben Auskunft ueber die mit der Stillegung freigesetzten Kapazitaeten. Ansatzpunkte fuer weiteren Forschungsbedarf zur Minimierung der nach der Stillegung verbleibenden Gefaehrdungen werden aufgezeigt. (orig.)SIGLEAvailable from TIB Hannover: FR 6890+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman

    Aufbau eines TA-Netzwerkes in den neuen Bundeslaendern Endbericht

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    SIGLEAvailable from TIB Hannover: F95B149+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman

    Aufbau eines TA-Netzwerks in den neuen Bundeslaendern Endbericht

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    Available from TIB Hannover: F94B1464+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman
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