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ASPE Spring Topical Meeting on Precision Micro/Nano Scale Polymer Based Component and Device Fabrication, ASPE 2005

作者： Castro, Carlos E. Lilly, Blaine Castro, José M. Ríos, Mauricio Cabrera Department of Industrial Welding and Systems Engineering Ohio State University Columbus OH 43202 United States Graduate Program in Systems Engineering Universidad Autónoma de Nuevo León San Nicolás de los Garza Nuevo-León 66450 Mexico

ISBN: (纸本)1887706372

Injection Molding (IM) is considered to be the most important process for mass-producing plastic products. One of the biggest challenges facing injection molders is to determine the best settings for the controllable process variables (CPVs). Selecting the proper settings is crucial because the behavior of the polymeric material during shaping is highly influenced by the process variables. The difficulty of optimizing an IM process is that the performance measures (PMs), such as surface quality or cycle time that characterize the adequacy of the part for its intended purpose usually show conflicting behavior. Furthermore, in actual molding, the CPVs will vary over some range during molding. This inconsistency of the process variables will lead to variability in the PMs. In high precision manufacturing, in particular for micro and nano scale components and devices, this variability needs to be minimized, and if possible eliminated. Thus, the variability in the PMs needs to be included in the optimization problem. The aim of this work is to demonstrate a method based on CAE, statistical testing, artificial neural networks (ANNs), and data envelopment analysis (DEA) to find the optimal compromises between multiple PMs and their variability to prescribe the values for the CPVs in IM. We present an example where the optimization is carried out in two phases. Phase one uses the PMs that are significantly affected by the injection gate location in order to prescribe two possible injection gates. Phase two of the optimization uses Data Envelopment Analysis (DEA) to find a PM-based efficient frontier for each injection gate considering process variability. These two efficient frontiers are then compared to select the best location. Other possible applications are discussed.

关键词： Injection molding

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Development of an integrated facilities' management baseline at a federal agency using a systems engineering approach

Development of an integrated facilities' management baseline...

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15th Annual International Symposium of the International Council on systems engineering, INCOSE 2005

作者： Thurau, Robert Dagli, Cihan Enke, David National Geospatial-Intelligence Agency St. Louis MO United States Department of Engineering Management and Systems Engineering University of Missouri -Rolla United States

ISBN: (纸本)9781622769285

The National Geospatial-Intelligence Agency (NGA) has implemented an integrated facilities' management program covering its many buildings, operations, and site locations. In conjunction with organizational structure development, a commercial-off-the-shelf (COTS) computer aided facilities management (CAFM) system was implemented to integrate data collection and user control. These facilities' management aspects include tracking building floor space usage, employee locations, AutoCad building designs, equipment inventory, operations and maintenance scheduling, etc. The systems engineering process included a spiral architecture development model, initial and recurring data validations, a risk management review, and multiple phases of tracking requirements and change control. Formal configuration management boards (CMB) were a critical element of development and continuing operation of CAFM. Use of an open systems interface design to allow exchange of data between CAFM and related databases from Human Resources and Security departments was essential. By replacing the many separate legacy facilities programs with an integrated CAFM package, more complete data information was collected which allowed for better control and operation of facilities resources and improved strategic facilities' planning.© 2005 by Robert Thurau. Published and used by INCOSE with permission.

关键词： systems engineering

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Legacy system reengineering: Essential process steps

Legacy system reengineering: Essential process steps

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2005 International Conference on Software engineering Research and Practice, SERP'05

作者： Jefferson, Theresa Arnold, Gregory C. Department of Engineering Management and Systems Engineering George Washington University Washington DC United States National Geospatial-Intelligence Agency Reston VA United States

ISBN: (纸本)9781932415506

This paper provides a comprehensive analysis of the reengineering of legacy systems. Based upon a review of the literature, five legacy system characteristics are defined and four goals for a reengineering project are developed. The decision to reengineer a legacy system is generally based upon a desire to: re-align the information system(s) with the organization's business processes;improve technology;and reduce maintenance costs. While each of the factors is a desirable objective, individually they are not sufficient to initiate and maintain a reengineering project over time. To be successful, a reengineering project must satisfy four reengineering goals: (1) a fully, accurately documented system;(2) a flexible implementation, able to incorporate new or changing requirements;(3) alignment with the organization's business objectives and processes;and (4) a cost-effective maintenance program. This paper proposes that there are a number of essentials steps that must be completed in order to conduct a successful reengineering project.

关键词： Legacy systems

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Authenticated encryption schemes: Current status and key issues

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International Journal of Network Security 2005年第2期1卷 61-73页

作者： Hwang, Min-Shiang Liu, Chi-Yu Department of Management Information Systems National Chung Hsing University 250 Kuo Kuang Rd Taichung 402 Taiwan Graduate Institute of Networking and Communication Engineering Chaoyang University of Technology 168 Gifeng E. Rd Wufeng Taichung County Taiwan

Nyberg and Ruppel first proposed a signature scheme with message recovery based on DSA in 1993, and the authenticated encryption scheme is a special application of their scheme. Afterward, there are many papers proposed about the authenticated encryption schemes. The signature scheme can reduce the transmitted cost, because the message has been contained in the signature of the message and the signer does not necessary to send the receiver the message and the signature. The scheme is very suitable for the key agreement application, because a key is a small amount of a message. In order to comprehend and interpret the authenticated encryption schemes overall, we discuss the evolution and the existed problems of authenticated encryption schemes.

关键词： Cryptography

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Senior design project commercialization and entrepreneurship

Senior design project commercialization and entrepreneurship

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2005 ASEE Annual Conference and Exposition: The Changing Landscape of engineering and Technology Education in a Global World

作者： Ports, Ken D'Cruz, Carmo Shaikh, Muzaffar Fausnaugh, Carolyn Florida Institute of Technology United States Department of the College of Engineering Florida Tech. United States Florida TechStart United States Engineering Systems Department Florida Tech. United States Engineering Systems Department Florida Institute of Technology United States School of Management Florida Tech. United States

This paper describes the development and growth of an innovative new program that is a synergistic combination of Florida Tech's technology commercialization-related course offerings in engineering management, its Senior Design course curriculum, and its new business accelerator, Florida TechStart. The program is designed for the subset of senior design course students who desire to leverage their design course experience by commercializing their innovative products and technologies and creating start-up companies. Florida Tech's engineering management curriculum offers innovative courses in technical marketing, high tech product strategy, fast cycle time product development & launch, and engineering entrepreneurship. In these case study courses, students develop real world marketing and business plans for commercializing innovative new products and technologies. Some of the innovative product development and technology commercialization ideas have won accolades at regional business idea pitching competitions. All students in the Florida Tech College of engineering must participate in a senior design program. The intensive undergraduate engineering programs at the university have resulted in a number of outstanding crossfunctional Senior Design Projects. The Senior Design program is highly coordinated across all the engineering departments and structured for improved quality and effectiveness. There is a growing interest by teams in commercializing the project results. Florida TechStart is a business accelerator for high-tech ventures, and provides a networking forum for inventors, corporate sponsors, investors and business service providers. It is designed to facilitate the creation of start-up, technology-based, revenue generating ventures. The paper will explain the relevant operations of each of these entities and how they work closely together to the advantage of their student constituents. It will also provide an update on our current project pipeline.

关键词： engineering education

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An integrated systems lab and curriculum to address IE program criteria

An integrated systems lab and curriculum to address IE progr...

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2005 ASEE Annual Conference and Exposition: The Changing Landscape of engineering and Technology Education in a Global World

作者： Matson, Jessica O. Hunter Sr., Kenneth W. Elizandro, David W. Tennessee Technological University United States Industrial and Systems Engineering Department Tennessee Technological University United States Basic Engineering Program Tennessee Technological University United States Department of Industrial Engineering Tennessee Tech University United States

ABET program criteria for industrial engineering require programs to demonstrate that "graduates have the ability to design, develop, implement, and improve integrated systems that include people, materials, information, equipment, and energy" and to include "in-depth instruction to accomplish the integration of systems using appropriate analytical, computational, and experimental practices." Faculty in the industrial engineering program at Tennessee Technological University have developed an integrated junior-year curriculum supported by an Integrated systems Laboratory and related projects. The projects provide opportunities for students to apply their newly acquired tools in an integrated setting prior to enrolling in the capstone course. Project requirements can include work measurement, work design and ergonomics, engineering economics, simulation, statistical analysis and experimental design, project management, and technical communication. In addition to a description of the laboratory and projects, the rationale and a description of the curriculum is presented. Also included is a preliminary analysis of the impact of this approach on student learning.

关键词： Curricula

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A multi-facet taxonomy system with applications in unstructured knowledge management

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Journal of Knowledge management 2005年第6期9卷 76-91页

作者： Cheung, C.F. Lee, W.B. Wang, Y. Department of Industrial and Systems Engineering The Hong Kong Polytechnic University Hong Kong Hong Kong Harbin Institute of Technology Shenzhen Graduate School Harbin China

Purpose - Unstructured knowledge management (UKM) becomes indispensable for the support of knowledge work. However, unstructured knowledge is inconvenient and difficult for sharing, organizing and acquisition. This paper seeks to present the development and implementation of a multi-facet taxonomy system (MTS) for effective management of unstructured knowledge. Design/methodology/approach - Multi-facet taxonomy is a multi-dimensional taxonomy which allows the classification of knowledge assets under multiple concepts at any levels of abstraction. The MTS system is based on five components: multi-dimensional taxonomy structure, thesaurus model, automatic classification mechanism, intelligent searching, and self-maintenance of taxonomy, respectively. Artificial intelligence (AI) and natural language process (NLP) technologies are used in the development of the MTS. Findings - With the successful development of the MTS, the accuracy of categorization of unstructured knowledge is significantly improved. It also allows an organization to capture the valuable tacit knowledge embedded in the unstructured knowledge assets. This helps an organization to explore business opportunities for continuous business improvement. Practical implications - The implementation of the MTS system not only dramatically reduces the human effort, time and cost for UKM but also allows an organization to capture valuable knowledge embedded in unstructured knowledge assets. Originality/value - As the knowledge work and task become more complex and are dynamically changing with time and involve multiple concepts, the MTS addresses the inadequacy of conventional single dimensional taxonomy for managing unstructured knowledge. The self-maintenance capability of the MTS ensures that the taxonomy is up-to-date and new knowledge is classified automatically for better knowledge sharing and acquisition. © Emerald Group Publishing Limited.

关键词： Artificial intelligence Classification Knowledge management

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Bias corrections of some criteria for selecting multivariate linear models in a general nonnormal case

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American Journal of Mathematical and management Sciences 2005年第3-4期25卷 221-258页

作者： Fujikoshi, Yasunori Yanagihara, Hirokazu Wakaki, Hirofumi Department of Mathematics Graduate School of Science Hiroshima University 1-3-1 Kagamiyama Hiroshima 739-8526 Japan Graduate School of Systems and Information Engineering University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8573 Japan

This paper deals with the bias corrections of two types of information criteria for selecting multivariate linear regression models in a general nonnormal case. One type is the AIC-type criterion and the other is the Cp-type criterion. One of our goals is to study the effect of nonnormality in the biases of three criteria, i.e., AIC, TIC and Cp, by deriving their asymptotic expansions. From these results, new criteria having a smaller influence of nonnormality than these three criteria are proposed by using the bootstrap method. Biases of our criteria are always corrected to O(n-1). We point out some tendencies of these criteria and verify that our criteria are better than the three criteria by conducting numerical experiments. Copyright © 2005 by American Sciences Press, Inc.

关键词： Mathematical models

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Approximation algorithms for scheduling multiple feasible interval jobs

Approximation algorithms for scheduling multiple feasible in...

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11th IEEE International Conference on Embedded and Real-Time Computing systems and Applications

作者： Chen, Jian-Jia Wu, Jun Shih, Chi-Sheng Kuo, Tei-Wei Department of Computer Science and Information Engineering National Taiwan University Taiwan Taiwan Department of Management of Information Systems Chung Kuo Institute of Technology Taiwan Taiwan Department of Computer Science and Information Engineering Graduate Institute of Networking and Multimedia National Taiwan University Taiwan Taiwan

ISBN: (纸本)0769523463

Time-critical jobs in many real-time applications have multiple feasible intervals. Such a job is constrained to execute from start to completion in one of its feasible intervals. A job fails if the job remains incomplete at the end of the last feasible interval. This paper is concerned with how to find a schedule in which the number of jobs completed in one of their feasible intervals is maximized. We show that the maximization problem is NP-hard for both non-preemptible and preemptible jobs. This paper develops two approximation algorithms for non-preemptible and preemptible jobs. When jobs are non-preemptible, Algorithm LECF is with a 2-approximation factor;when jobs are preemptible, Algorithm LEF is proved being a 3-approximation algorithm. We also show that our analysis on the two algorithms is tight by providing a set of input instances. Simulation results demonstrate that Algorithms LECF and LEF not only guarantee the approximation factors but also outperform other multiple feasible interval scheduling algorithms. © 2005 IEEE.

关键词： Scheduling

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Emerging topics for undergraduate industrial engineering education program

Emerging topics for undergraduate industrial engineering edu...

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IIE Annual Conference and Exposition 2005

作者： Eskandari, Hamidreza Furterer, Sandra Rabelo, Luis Crumpton-Young, Lesia Williams, Kent Department of Industrial Engineering and Management Systems University of Central Florida 4000 Central Florida Blvd Orlando FL 32816 United States

This paper presents the initial phase of a study to identify the desired characteristics of an undergraduate Industrial Engineer, and the emerging topic areas that should be incorporated into the reengineered curriculum so that the curriculum evolves as the emerging topics emerge. A survey was delivered to faculty and industry professionals across the U.S. to understand the desired characteristics and the important emerging topic areas. The modified Delphi technique was applied to gain consensus and ranking of the emerging topics. Three rounds will be performed to identify the emerging topic areas, assign emerging topic importance, and eventually obtain consensus and ranking on the emerging topics. The research findings are discussed that identify the desired characteristics, and the most important emerging topics to be incorporated into the reengineered curriculum.

关键词： Industrial engineering

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