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Operations Research, Systems Engineering and Industrial Engineering Commons™
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- 12th IMHRC Proceedings (Gardanne, France – 2012) (41)
- Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research (7)
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Articles 61 - 69 of 69
Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering
Robust Design Of Public Storage Warehouses, Yeming Yale Gong, Rene De Koster
Robust Design Of Public Storage Warehouses, Yeming Yale Gong, Rene De Koster
12th IMHRC Proceedings (Gardanne, France – 2012)
We apply robust optimization and revenue management in public storage warehouses. We optimize the expected revenue of public storage warehouses against the worst cases with a max-min revenue objective, and the decision variables are mainly the number of storage units for each storage type. With the robust design, we can observe worst-case revenue improvement.
Analysis Of Material Handling Systems Based On Discrete Time Design Modules, Furmans Kai, Ozden Eda, Stoll Judith, Epp Martin, Schmidt Thorsten, Meinhardt Ingolf, Schulze Frank
Analysis Of Material Handling Systems Based On Discrete Time Design Modules, Furmans Kai, Ozden Eda, Stoll Judith, Epp Martin, Schmidt Thorsten, Meinhardt Ingolf, Schulze Frank
12th IMHRC Proceedings (Gardanne, France – 2012)
In this paper, we present a method for the performance evaluation of material handling systems in an early planning stage. We are mapping typical material handling elements onto stochastic analytical models. Our intention is to build a toolbox of material handling modules that allows a fast analysis of typical continuous conveying systems. The tool should enable the identification of bottlenecks and the computation of lead time distributions for intra-logistic systems.
Humanitarian Logistics – The First Week, Selina Begum, Bill Ferrell
Humanitarian Logistics – The First Week, Selina Begum, Bill Ferrell
12th IMHRC Proceedings (Gardanne, France – 2012)
Decisions made on material flow during the first week of a natural disaster are critical for victims. Currently, decision makers appears to be making important choices based on experience and intuition with little or no support from quantitative approaches because they do not exist. This research proposes a paradigm and offers two supporting models that will assist decision makers regarding the routing of materials during the first week of a disaster. It explicitly includes information regarding the victims’ needs and the degree to which routes are available in a quantitative way that allows updating as information improves. The paradigm involves …
Collaborative Freight Transportation To Improve Efficiency And Sustainability, Kimberly P. Ellis, Steven Roesch, Russell D. Meller
Collaborative Freight Transportation To Improve Efficiency And Sustainability, Kimberly P. Ellis, Steven Roesch, Russell D. Meller
12th IMHRC Proceedings (Gardanne, France – 2012)
Collaborative distribution offers the potential for substantial improvements in freight transportation. As collaboration increases, more loads are available for sharing among transportation service providers, leading to more fully loaded trailers that travel fewer miles and reduce the cost per load on average. In this study, we develop approaches to analyze improvements in key performance measures as collaboration increases in freight transportation. For the data sets analyzed, improvements include a 34% increase in trailer fullness, a 29% reduction in average costs per load, and a 25% decrease in average miles per load. Based on this analysis, collaboration provides substantial improvements for …
Optimal Design Of Container Terminal Layout, Debjit Roy, Ren´E De Koster
Optimal Design Of Container Terminal Layout, Debjit Roy, Ren´E De Koster
12th IMHRC Proceedings (Gardanne, France – 2012)
Due to rapid growth in foreign trade using sea vessels, there is a growing focus in improving the infrastructure and operational efficiencies at the container terminals. Particularly, the operational responsiveness of loading and unloading of containers, affects the vessel idle times and profitability of the shipping liners. In this research, we deter- mine optimal stack layout design, which minimizes the container unload times using Automated Guided Vehicles (AGVs). To analyze alternate stack layout designs, we develop integrated queuing network models that capture the stochastic interactions among the container terminal processes (quayside, vehicle transport, and stack side), and provides realistic estimates …
Robust Material Handling System Design Based On The Risk Versus Cost Tradeoff, Marc Goetschalckx, Edward Huang, Pratik Mital
Robust Material Handling System Design Based On The Risk Versus Cost Tradeoff, Marc Goetschalckx, Edward Huang, Pratik Mital
12th IMHRC Proceedings (Gardanne, France – 2012)
The design and planning of major material handling systems belongs to the class of systems design problems under uncertainty. The overall structure of the system is decided during the current design stage, while the values of the future conditions and the future planning decisions are not known with certainty. Typically the future uncertainty is modeled through a number of scenarios and each scenario has an individual timediscounted total system cost. The overall performance of the material handling system is characterized by the distribution of these scenario costs. The central tendency of the cost distribution is almost always computed as the …
Column Generation For The Container Relocation Problem, Elisabeth Zehendner, Dominique Feillet
Column Generation For The Container Relocation Problem, Elisabeth Zehendner, Dominique Feillet
12th IMHRC Proceedings (Gardanne, France – 2012)
Container terminals offer transfer facilities to move containers from vessels to trucks, trains and barges and vice versa. Within the terminal the container yard serves as a temporary buffer where incoming containers are piled up in stacks. Only the topmost container of each stack can be accessed. If another container has to be retrieved, containers stored above it must be relocated first. Containers need to be transported to a ship or to trucks in a predefined sequence as fast as possible. Generally, this sequence does not match the stacking order within the yard. Therefore, a sequence of retrieval and relocation …
A Study On Storage Allocation In An Automated Semiconductor Manufacturing Facility, St´Ephane Dauz`Ere-P´Er`Es, Claude Yugma, Ahmed Ben Chaabane, Ahmed Ben Chaabane, Lionel Rulli`Ere, Gilles Lamiable
A Study On Storage Allocation In An Automated Semiconductor Manufacturing Facility, St´Ephane Dauz`Ere-P´Er`Es, Claude Yugma, Ahmed Ben Chaabane, Ahmed Ben Chaabane, Lionel Rulli`Ere, Gilles Lamiable
12th IMHRC Proceedings (Gardanne, France – 2012)
This paper deals with the allocation of storage capacity in the automated material handling environment of a semiconductor wafer manufacturing facility. The impact of the allocation of stokers to machines in semiconductor fabrication facilities (fabs) is very little studied, although it significantly impacts the efficiency of the Automated Material Handling System (AMHS). After motivating and describing the problem of allocating unitary stokers to machines, a first local approach is discussed. We then propose a Mixed Integer linear Programming model to solve the global problem with two objectives: Minimizing the total maximum travel distance of vehicles and balancing the utilization of …
Network-Based Data Collection For A Project-Based Freshman Class, Samuel Bogan Daniels, Cheryl Q. Li, David Harding
Network-Based Data Collection For A Project-Based Freshman Class, Samuel Bogan Daniels, Cheryl Q. Li, David Harding
Mechanical and Industrial Engineering Faculty Publications
The hands-on experience for engineering students is often lacking with class sizes increasing and classroom resources under constant pressure. Even with smaller class sizes and studio classrooms there is only so much equipment and technical support to run experiments and allow for student interaction. Network-based data collection and control may alleviate some of these issues and allow for more hands-on experiences, although remote, in the classroom. This paper discusses the interesting problems and not so obvious pitfalls of setting up some simple network-based data acquisition systems for a multidisciplinary freshman level engineering course. The course as currently taught includes some …