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Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering

Development Of A Process Modelling System For Simulation, John Ryan Jan 2005

Development Of A Process Modelling System For Simulation, John Ryan

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This thesis details the development of a process modelling technique to aid a simulation model developer during the requirements gathering and conceptual modelling phases of a simulation project.

There are a number of process modelling techniques available that are capable of being used during such phases of a simulation project, however there is currently a lack of process modelling techniques developed specifically to aid a simulation model developer in capturing, representing and communicating information and systems issues to persons involved in the operation of discrete systems under investigation.

A detailed review of the literature related to techniques capable of supporting ...


Selection Of Products And Prices In Manufacturing And Remanufacturing Environment, Sasidhar Malladi, K. Jo Min Jan 2005

Selection Of Products And Prices In Manufacturing And Remanufacturing Environment, Sasidhar Malladi, K. Jo Min

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

In this paper, we consider a manufacturer who produces both new and remanufactured products facing a group of heterogeneous customers who self-select their optimal choices of products. Under such circumstances, we formulate a mathematical programming model that determines the products, prices, and acquisition prices for used products. Based on this model, we will discuss conditions under which remanufacturing can be encouraged.


Detecting Inconsistency In Functional Software Requirements, Gboyega Sanni, John K. Jackman Jan 2005

Detecting Inconsistency In Functional Software Requirements, Gboyega Sanni, John K. Jackman

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Success in software development depends on the availability of complete, consistent, and unambiguous functional software requirements. Inconsistencies in software requirements can propagate problems throughout the development cycle. We introduce the concept of a quantitative measure for detecting inconsistencies, namely, Potential Structural Inconsistency (PSI). This measure is derived from a structural model for a given set of requirements. We show how this measure can be determined using a case study with known inconsistencies.


The Use Of Sacrificial Support Structures In A Rapid Machining Process, Wutthigrai Boonsuk, Matthew C. Frank Jan 2005

The Use Of Sacrificial Support Structures In A Rapid Machining Process, Wutthigrai Boonsuk, Matthew C. Frank

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Rapid prototyping techniques for CNC machining have been developed in an effort to produce functional prototypes in appropriate materials. One of the major challenges is to develop an automatic fixturing system for the part during the milling process. The current proposed method, sacrificial support fixturing, is similar to the support structures used in existing rapid processes, such as Stereolithography. During the machining process, the sacrificial supports emerge incrementally and, at the end of the process, are the only entities connecting the part to the stock material. In this paper, we propose methodologies for the design of sacrificial support structures for ...


Production Research In China, S. Chaudhry, S. Feng, H. Li, H. Sui, J. L. Zhang, Z Zhang, Li Xu Jan 2005

Production Research In China, S. Chaudhry, S. Feng, H. Li, H. Sui, J. L. Zhang, Z Zhang, Li Xu

Information Technology & Decision Sciences Faculty Publications

(First paragraph) China is the world’s largest emerging economy. In recent years, China has moved to an increasingly market-oriented economy that opens to international trade and investment. At the same time, the popularity of China as a manufacturing base, assembling goods for sale worldwide is growing. In addition to global manufacturers who have built their own plants in China, many manufacturing companies are outsourcing production to Chinese subcontractors and branding the products with their own logos. In today’s China, production research is becoming more and more important; advanced production research becomes an important enabler to make its manufacturing ...


Coordinating Forward And Reverse Flows Of Products For A Manufacturer-Retailer Supply Chain Model, Jie Li, K. Jo Min Jan 2005

Coordinating Forward And Reverse Flows Of Products For A Manufacturer-Retailer Supply Chain Model, Jie Li, K. Jo Min

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

In this paper, we formulate and analyze a manufacturer-retailer supply chain model with product remanufacturing. This model takes into account both forward flow of the new product as well as reverse flow of the used product. Specifically, we assume that the manufacturer can control the wholesale price of the new product as well the transfer price of the used product from the retailer while the retailer can control the retail price of the new product and the collecting price of the used product. Under this assumption, we compare and contrast the coordinated scenario vs. the uncoordinated scenario. Managerial insights and ...


Characterization Of Reverse Logistics Networks For Outsourcing Decisions, Marco Serrato, Sarah M. Ryan, Juan Gaytan Jan 2005

Characterization Of Reverse Logistics Networks For Outsourcing Decisions, Marco Serrato, Sarah M. Ryan, Juan Gaytan

Industrial and Manufacturing Systems Engineering Publications

Strategic decisions about reverse logistics (RL) are complicated by the uncertainty of product returns. To aid firms in deciding whether to outsource RL activities, a characterization of RL networks according to two critical factors is proposed. These factors are the length of the product life cycle, which affects variability of expected returns over time, and the uncertainty of the rate of returns in each time period. Even if changes in the average return rate according to the life cycle are well understood, the variability in returns relative to the known average differs significantly depending on the product characteristics, as well ...