• Journal of Korean Society of Industrial and Systems Engineering
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• v.23 no.55
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• pp.85-96
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• 2000

This paper describes IDMS, a graph-based modeling system that supports problem structuring. We employs influence diagram as a problem representation tool, that is, a modeling tool. In particular, IDMS is designed as domain-independent shell. Therefore, a modeler can change the contents of the knowledge base to suit his/her own interested domain. Since the knowledge base of IDMS contains both modeling knowledge and domain knowledge, IDMS provides not only the syntactic support for modeling tool, but also the semantic support for problem domain. To apply the method in the real world context, we tested IDMS on the process selection problem in business reengineering, which is typical semi-structured problem.

• Journal of Welding and Joining
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• v.17 no.3
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• pp.44-49
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• 1999

Power and industrial plant use various welding processes and many kinds of materials. Thus, it is a difficult task to get the proper welding information. In this research, a welding information system was developed to solve the difficulty. It consists of database system, knowledge base system and diagram analysis programs. Database system contains a large database and various searching method corresponding to the kind of information. A large part of welding information is managed by this database system. Knowledge based system is used for decision of proper welding process and analysis of weld defects. It has conversion program from text to knowledge, and inference mechanism. Finally, Diagram analysis programs carry out the calculation of ferrite content in the weld metal. By the calculation, a crack occurrence can be avoided. The developed system can be a useful tool for welding in the field of power and industrial plant.

• Journal of Advanced Marine Engineering and Technology
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• v.23 no.5
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• pp.622-629
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• 1999

This paper presents the development of an interactive knowledge-based CAM system for design-ing and manufacturing the mold. The system is composed of two functional parts. One is the geo-metric modeller that uses the feature-based models. The models include base plate step, hole, pocket, boss and slot, These are designed by interactive user interface. The other is the expert sys-tem module with inference engine and knowledge database of workpiece material tools manufac-turing machines process an working conditions. With two parts the final mold shape is generated with manufacturing information for effective production.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2000.11a
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• pp.303-306
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• 2000

This paper describes a research on the development of the 3D design automation system for progressive die. Based on knowledge base of expert, this system can carry out design tasks, such as feature recognition of product data, layout design, dre set component design. Easy system user mterface and 3-dlmensional solid modeling could result in time and cost saving.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.14 no.4
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• pp.48-59
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• 2006

This Study focused on the process of technology transfer for the aircraft development program by the strategic alliance. Especially, this study showed how the learning firms absorb new technology from the foreign leading company. This case study concludes that teachability, asset specificity, relation capital with partner, information sharing system in organization and knowledge base are key factors for absorbing the new technology from the technology leading partner.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1993.06a
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• pp.1155-1158
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• 1993

Proficiency in creating a knowledge base is required for high accuracy fuzzy control. To overcome this a fuzzy inference method is proposed that take these membership functions from the probability densities showing the distribution of the mesurement values. And a method using a rough fuzzy knowledge base automatically created from the basic measurement data and tuned using the gradient method is proposed. In actual tests, these were applied to automatic high accuracy adjustment devices for magnetic head and for high frequency circuits with good results.

• Journal of the Korean Institute of Intelligent Systems
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• v.2 no.1
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• pp.33-52
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• 1992

In this paper, Controlled Knowledge Base(CKB) type fuzzy learning controller for force/servo control system was proposed and the application for them was also studied. To achieve them, we derive fuzzy set from expert knowledges and reson the appropriate control gains by parameter estimation of object. Then, we proved it by computer simulation that we can reduce the ambigious effect, which is not able to be estimated, by designing the controller based on CKB.

• Proceedings of the KSME Conference
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• 2005.11a
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• pp.205.1-205.1
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• 2005

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1993.04a
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• pp.109-118
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• 1993

This paper describes the management of knowledge base and optimization models using knowledge-assisted optimization model formulation system UNIK-OPT (UNIfied Knowledge-OPTimization). We will illustrate UNIK-OPT with the case of production scheduling in refinery.

• Journal of Korean Clinical Nursing Research
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• v.15 no.3
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• pp.85-94
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• 2009

Purpose: The purpose of this study was to identify the relationship of influenza A (H1N1) knowledge, attitude and practice for nurses. Methods: Data were collected by self-report questionnaires from a total of 325 nurses working in an Influenza A (H1N1) base-zone hospital in C city during September, 2009. The collected data were analyzed using of SPSS/WIN 17.0. Results: The knowledge of influenza A (H1N1) was not statistically different for gender, age, education, work unit, clinical experience, position, or previous education of Influenza A (H1N1). The attitude to influenza A (H1N1) was statistically significant according to age or clinical experience. Practice related to influenza A (H1N1) was statistically different for education, clinical experience or previous education of influenza A (H1N1). Knowledge of influenza A (H1N1) was lowest for etiology and definition compared to other subcategories. Attitude and practice were significantly different for all items. The biggest difference in items was for 'use of physical barriers (protective goggles, face masks and gowns) during procedures that may involve contact with aerosol'. There was a positive association between attitude and practice. Conclusion: An educational program focusing on strategy to change nurses's knowledge, attitude and practice can be effective for infection control in an influenza A (H1N1) base-zone hospital.