Fraunhofer-Gesellschaft

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Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2017Optimization problems with flexible objectives: A general modeling approach and applications
Nickel, Stefan; Velten, Sebastian
Journal Article
2016Multi-period hub network design problems with modular capacities
Alumur, S.A.; Nickel, S.; Saldanha-da-Gama, F.; Seçerdin, Y.
Journal Article
2015Integrität von Wald- und Forstökosystemen unter dem Einfluss von Klimawandel und atmosphärischen Stickstoffeinträgen. Teil 1: Typisierung von Wald- und Forstökosystemen als Grundlage zur Einstufung ihrer Integrität
Jenssen, M.; Schröder, W.; Nickel, S.
Journal Article
2015Multi-period hub location problems in transportation
Gelareh, S.; Neamatian Monemi, R.; Nickel, S.
Journal Article
2014An efficient heuristic approach for a multi-period logistics network redesign problem
Melo, M.T.; Nickel, S.; Saldanha-da-Gama, F.
Journal Article
2014Multi-product capacitated single-allocation hub location problems: Formulations and inequalities
Correia, I.; Nickel, S.; Saldanha-da-Gama, F.
Journal Article
2013The maximum dispersion problem
Fernandez, E.; Kalcsics, J.; Nickel, S.
Journal Article
2012Hub location under uncertainty
Alumur, S.A.; Nickel, S.; Saldanha-da-Gama, F.
Journal Article
2012Mid-term and short-term planning support for home health care services
Nickel, S.; Schröder, M.; Steeg, J.
Journal Article
2012Multi-period reverse logistics network design
Alumur, S.A.; Nickel, S.; Saldanha-Da-Gama, F.; Verter, V.
Journal Article
2012A multi-stage stochastic supply network design problem with financial decisions and risk management
Nickel, S.; Saldanha-da-Gama, F.; Ziegler, H.-P.
Journal Article
2012Multiperiod location-routing with decoupled time scales
Albareda-Sambola, M.; Fernández, E.; Nickel, S.
Journal Article
2012A tabu search heuristic for redesigning a multi-echelon supply chain network over a planning horizon
Melo, M.T.; Nickel, S.; Saldanha-Da-Gama, F.
Journal Article
2011Hub and spoke network design with single-assignment, capacity decisions and balancing requirements
Correia, I.; Nickel, S.; Saldanha-da-Gama, F.
Journal Article
2011Hub location problems in transportation networks
Gelareh, S.; Nickel, S.
Journal Article
2011Impact of IT-supported clinical pathways on medical staff satisfaction
Jacob, P.; Nickel, S.; Richter, S.; Schäfer, T.; Schilling, M.K.; Schuld, J.
Journal Article
2011Operations Research
Nickel, S.; Stein, O.; Waldmann, K.-H.
Book
2011Ordered median functions and symmetries optimization
Grzybowski, J.; Nickel, S.; Pallaschke, D.; Urbanski, R.
Journal Article
2010The capacitated single-allocation hub location problem revisited: A note on a classical formulation
Correia, I.; Nickel, S.; Saldanha-da-Gama, F.
Journal Article
2010Distribution systems design with role dependent objectives
Kalcsics, J.; Nickel, S.; Puerto, J.; Rodriguez-Chia, A.M.
Journal Article
2010Dynamic transportation of patients in hospitals
Beaudry, A.; Melo, T.; Laporte, G.; Nickel, S.
Journal Article
2010An extended covering model for flexible discrete and equity location problems
Marin, A.; Nickel, S.; Velten, S.
Journal Article
2010Extensions to the continuous ordered median problem
Krebs, J.; Nickel, S.
Journal Article
2010Klinische Behandlungspfade - Integration logistischer Planungsaufgaben
Kraus, K.; Nickel, S.; Richter, S.; Schilling, M.K.; Schmidt, U.-A.; Schuld, J.
Journal Article
2010Liner shipping hub network design in a competitive environment
Gelareh, S.; Nickel, S.; Pisinger, D.
Journal Article
2010A novel maximum dispersion territory design model arising in the implementation of the WEEE-directive
Fernandez, E.; Kalcsics, J.; Nickel, S.; Rios-Mercado, R.
Journal Article
2010The ordered capacitated facility location problem
Kalcsics, J.; Nickel, S.; Puerto, J.; Rodriguez-Chia, A.M.
Journal Article
2010Single-assignment hub location problems with multiple capacity levels
Correia, I.; Nickel, S.; Saldanha-da-Gama, F.
Journal Article
2010Stochastic programming approaches for risk aware supply chain network design problems
Nickel, S.; Saldanha-da-Gama, F.; Ziegler, H.-P.
Report
2009Bringing robustness to patient flow management through optimized patient transports in hospitals
Hanne, T.; Melo, T.; Nickel, S.
Journal Article
2009The capacitated single-allocation hub location problem revisited
Correia, I.; Nickel, S.; Saldanha-da-Gama, F.
Report
2009Constructing a DC decomposition for ordered median problems
Drezner, Z.; Nickel, S.
Journal Article
2009Facility location and supply chain management - a review
Melo, M.T.; Nickel, S.; Saldanha-da-Gama, F.
Journal Article
2009A flexible model and efficient solution strategies for discrete location problems
Velten, S.; Nickel, S.; Puerto, J.; Marin, A.
Journal Article
2009A generic geometric approach to territory design and districting
Kalcsics, J.; Nickel, S.; Schröder, M.
Report
2009An LP-rounding heuristic to solve a multi-period facility relocation problem
Melo, T.; Nickel, S.; Saldanha-da-Gama, F.
Report
2009The ordered gradual covering location problem on a network
Berman, O.; Kalcsics, J.; Krass, D.; Nickel, S.
Journal Article
2009Planning for home health care services
Nickel, S.; Schröder, M.; Steeg, J.
Report
2009Process improvement in hospitals: A case study in a radiology department
Nickel, S.; Schmidt, U.-A.
Journal Article
2009Single-allocation hub location problems with capacity choices
Correia, I.; Nickel, S.; Saldanha-da-Gama, F.
Report
2008A Benders decomposition for hub location problems arising in public transport
Gelareh, S.; Nickel, S.
Conference Paper
2008Dynamic supply chain design with inventory
Hinojosa, Y.; Kalcsics, J.; Nickel, S.; Puerto, J.; Velten, S.
Journal Article
2008Grundzüge der Krankenhaussteuerung
Fleßa, S
: Nickel, S. (Mitarb.)
Book
2008Logistik
Nickel, S.
Book Article
2008Multi-period public transport design
Gelareh, S.; Nickel, S.
Report
2008Network design decisions in supply chain planning
Melo, T.; Nickel, S.; Saldanha da Gama, F.
Report
2008Network design decisions in supply chain planning
Melo, M.T.; Nickel, S.; Saldanha da Gama, F.
Conference Paper
2008New approaches to hub location problems in public transport planning
Gelareh, S.; Nickel, S.
Report
2008A novel territory design model arising in the implementation of the WEEE-Directive
Fernandez, E.; Kalcsics, J.; Nickel, S.; Rios-Mercado, R.
Report
2008The ordered gradual covering location problem on a network
Berman, O.; Kalcsics, J.; Krass, D.; Nickel, S.
Report
2008Reliability models for the uncapacitated facility location Problem with user preferences
Herrera, R.; Kalcsics, J.; Nickel, S.
Conference Paper
2007Bringing robustness to patient flow management through optimized patient transports in hospitals
Hanne, T.; Melo, T.; Nickel, S.
Report
2007Facility Location and Supply Chain Management - A comprehensive review
Melo, T.; Nickel, S.; Saldanha da Gama, F.
Report
2007Solving the ordered one-median problem in the plane
Drezner, Z.; Nickel, S.
Report
2006Dynamic multi-commodity capacitated facility location
Melo, T.; Nickel, S.; Saldanha da Gama, F.
Journal Article
2006Dynamic transportation of patients in hospitals
Beaudry, A.; Laporte, G.; Melo, T.; Nickel, S.
Report
2006Exact procedures for solving the discrete ordered median problem
Boland, N.; Dominguez-Marin, P.; Nickel, S.; Puerto, J.
Journal Article
2006A flexible model and efficient solution strategies for discrete location problems
Marin, A.; Nickel, S.; Puerto, J.; Velten, S.
Conference Paper
2006An LP-based heuristic approach for strategic supply chain design
Velasquez, R.; Melo, T.; Nickel, S.
Conference Paper
2005Heuristic procedures for solving the discrete ordered median problem
Dominguez-Marin, P.; Nickel, S.; Hansen, P.; Mladenovic, N.
Journal Article
2005Location theory
Nickel, S.; Puerto, J.
Book
2005MCDM location problems
Nickel, S.; Puerto, J.; Rodriguez-Chia, A.M.
Book Article
2005Multicriteria planar ordered median problems
Nickel, S.; Puerto, J.; Rodriguez-Chia, A.M.; Weissler, A.
Journal Article
2005A multiobjective evolutionary algorithm for scheduling and inspection planning in software development projects
Hanne, T.; Nickel, S.
Journal Article
2005Simulation-based software process modeling and evaluation
Armbrust, O.; Berlage, T.; Hanne, T.; Lang, P.; Münch, J.; Neu, H.; Nickel, S.; Rus, I.; Sarishvili, A.; Stockum, S. van; Wirsen, A.
Book Article
2005Towards a unified territorial design approach
Nickel, S.; Schröder, M.; Kalcsics, J.
Journal Article
2005Towards a unified territory design approach-applications, algorithms and GIS integration
Kalcsics, J.; Nickel, S.; Schröder, M.
Report
2004Adapting polyhedral properties from facility to hub location problems
Hamacher, H.W.; Labbé, M.; Nickel, S.; Sonneborn, T.
Journal Article
2004Dynamic multi-commodity facility location: A mathematical modeling framework for strategic supply chain planning
Nickel, S.; Melo, T.; Saldanha da Gama, F.
Conference Paper
2003An approach to location models involving sets as existing facilities
Nickel, S.; Puerto, J.; Rodriguez-Chia, A.M.
Journal Article
2003Creating a code inspection model for simulation-based decision support
Neu, H.; Hanne, T.; Münch, J.; Nickel, S.; Wirsen, A.
Conference Paper
2003Exact procedures for solving the discrete ordered median problem
Boland, N.; Dominguez-Marin, P.; Nickel, S.; Puerto, J.
Report
2003Heuristic procedures for solving the discrete ordered median problem
Dominguez-Marin, P.; Hansen, P.; Mladenovic, N.; Nickel, S.
Report
2003Interaction control in a combined logistics and chemical process simulation
Lavrov, A.; Hietel, D.; Nickel, S.
Conference Paper
2003Large-scale models for dynamic multi-commodity capacitated facility location
Melo, M.T.; Nickel, S.; Saldanha da Gama, F.
Report
2003Mathematical programming models for strategic supply chain planning and design
Kalcsics, J.; Melo, T.; Nickel, S.
Conference Paper
2003A multi-objective evolutionary algorithm for scheduling and inspection planning in software development projects
Hanne, T.; Nickel, S.
Report
2003Multifacility ordered median problems on networks: a further analysis
Kalcsics, J.; Nickel, S.; Puerto, J.
Journal Article
2003A polynomial case of the batch presorting problem
Kallrath, J.; Nickel, S.
Report
2003Robust facility location
Carrizosa, E.; Nickel, S.
Journal Article
2003Simulation-based software process modeling and evaluation
Armbrust, O.; Berlage, T.; Hanne, T.; Lang, P.; Münch, J.; Neu, H.; Nickel, S.; Rus, I.; Sarishvili, A.; Stockum, S. van; Wirsen, A.
Report
2003Supply-Chain-Tools fehlt oft Optimierungskomponente
Melo, T.; Nickel, S.
Journal Article
2002Algorithmic results for ordered median problems
Kalcsics, J.; Nickel, S.; Puerto, J.; Tamir, A.
Journal Article
2002Batch presorting problems: Models and complexity results
Kallrath, J.; Müller, M.C.; Nickel, S.
Report
2002Heuristrische Ansätze zur Lösung von Standortfragen und deren Implementierung
Gündra, H.; Kalcsics, J.; Nickel, S.; Schröder, M.
Conference Paper
2002Location software and interface with GIS and supply chain management
Bender, T.; Hennes, H.; Kalcsics, J.; Melo, T.; Nickel, S.
Book Article
2002Multicriteria semi-obnoxious network location problems (MSNLP) with sum and center objectives
Hamacher, H.W.; Labbé, M.; Nickel, S.; Skriver, A.J.V.
Journal Article
2002On the number of criteria needed to decide Pareto optimality
Ehrgott, M.; Nickel, S.
Journal Article
2002Simulation-based evaluation and improvement of software development processes
Münch, J.; Berlage, T.; Hanne, T.; Neu, H.; Nickel, S.; Stockum, S. von; Wirsen, A.
Report
2002Simulation-based risk reduction for planning inspections
Neu, H.; Hanne, T.; Münch, J.; Nickel, S.; Wirsen, A.
Conference Paper
2001Error-bounds for the approximative solution of restricted planar location-problems
Kafer, B.; Nickel, S.
Journal Article
2001Location software and interface with GIS and supply chain management
Bender, T.; Hennes, H.; Kalcsics, J.; Melo, M.T.; Nickel, S.
Report
2000Polyhedral properties of the uncapacitated multiple allocation hub location problem
Hamacher, H.W.; Labbé, M.; Nickel, S.; Sonneborn, T.
Report
2000Solving nonconvex planar location problems by finite dominating sets
Carrizosa, E.; Hamacher, H.W.; Klein, R.; Nickel, S.
Report