• Proceedings of the Korean Society of Marine Engineers Conference
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• 2005.06a
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• pp.281-286
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• 2005

Almost ship monitoring systems are event driven alarm system which warn only when the measurement value is over or under set point. These kinds of system cannot warn while signal is growing to abnormal state until the signal is over or under the set point and cannot play a role for preventive maintenance system. This paper proposes fault diagnosis method which is able to diagnose and forecast the fault from present operating condition by analyzing monitored signals with present ship monitoring system without additional sensors. By analyzing this data having high correlation coefficient(CC), correlation level of interactive data can be understood. Knowledge base of abnormal detection can be built by referring level of CC(Fault Detection CC, FDCC) to detect abnormal data among monitored data from monitoring system and knowledge base of diagnosis built by referring CC among interactive data for related machine each other to diagnose fault part.

• Journal of the Korean Institute of Telematics and Electronics B
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• v.28B no.11
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• pp.941-954
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• 1991

The characteristics of a power plant changes as it operates for a long time and/or for different operating point. As a result, operators must retune gains of the controllers for better performance. In fact, skilled operators can retune the gains in reference to recorded data obtained by a test called dynamic test. The dynamic test, however, requires much time, and can be heavy burden for operators. In this paper, an expert knowledge-based auto-tuner is designed for drum-type boiler controllers of a fossil power plant using fuzzy logic. The performance of the proposed auto-tuner is shown via computer simulation and the simulation results show that the proposed auto-tuner is satisfactory for the desired performance.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1993.06a
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• pp.1137-1140
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• 1993

A dynamic-structure system is one that has the flexibility to change the system configuration automatically so as to operate in an optimal manner. A conceptural model for a dynamic-structure system is presented in this paper. In this model, the interchangeable components of the overall system are grouped together. Their activity levels are evaluated by an intelligent preprocessor that is associated with the group. A knowledge-based task distribution system evaluates the activity levels and makes decisions as to how the components operating below capacity should be shared with workcells that have similar components that are overloaded. Associated decision making can be effected through fuzzy logic and particularly the compositional rule of inference. A simulation example is given to illustrate the application of dynamic structuring.

• Proceedings of the KIEE Conference
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• 1993.07a
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• pp.99-101
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• 1993

This paper presents an approach to feeder reconfiguration in order to achieve an efficient operation of distribution systems utilizing knowledge base. The optimal feeder reconfiguration in this study eliminates various abnormal states which will create feeder overloads and feeder constraint problems. and will also accomplish minimum power loss of the distribution systems under normal operating condition by means of branch exchanges to change the status of sectionalizing switches with experiences of the experts. For an effective implementation of feeder reconfiguration, a best-first tree searching strategy based on heuristics is employed to evaluate the various alternatives of load transfer. The heuristic exchange of branches results in reduction of the search space as a means of implementing the best-first searching strategy.

• International Journal of Knowledge Content Development & Technology
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• v.2 no.1
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• pp.17-35
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• 2012

The city of 'G' has been made a number of achievements with its science program as a part of public library's cultural program during the last 5 years. Recently, the national science centre has been established in the same city, the debate is now needed whether the science program in the public library have reasons to be maintained or to be reduced. The aim of this research is on the operating strategies of the science program in the public library. The research methods include case studies of operational strategies in domestic and foreign science centre, the level of satisfaction of local citizen on the science program, the vision of science program in the advancement of public library in the $21^{st}$ century. In results, the research proposes that the science program in public library should be maintained, but with locally characterised programs. In addition, the study also advised on the provision of scientific information, the strengthened search functions, and the development of user-centred services for those in science fields.

• Medical Lasers
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• v.9 no.1
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• pp.34-38
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• 2020

Recently, various lasers and energy-based devices (EBDs) have been widely used in aesthetic procedures. Although using lasers and energy-based aesthetic procedures presents a potential risk to doctors, nurses, and patients, aesthetic procedures tend to be performed without the necessary precautions. For injury prevention, it is essential to follow safety rules and be aware of potential accidents. Furthermore, it is important to understand the basic principles of the devices, including the different optical and electrical properties. Acquiring the exact knowledge to control a device is important for two reasons; to maintain a safer operating environment and prolong the lifespan of expensive devices. This review briefly summarizes the knowledge needed for better and safer aesthetic procedures and the proper control of aesthetic devices.

• Korean Journal of Adult Nursing
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• v.21 no.1
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• pp.53-61
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• 2009

Purpose: This study was to provide baseline data to arrange systematic management for the infectious waste. Methods: This data was collected by self-reported questionnaires from a total of 419 subjects, ie nurses, nurse's aides and laboratory technicians working at a university hospital located in G city. The collected data were analyzed by t-test or ANOVA, Tukey test, Pearson's correlation, and multiple regression analysis using SPSS/WIN 12.0. Results: The knowledge of the infectious waste was statistically significant in type of staff and level of education. Attitude was statistically significant in type of staff, age group, level of education, working period, and marital status. And also the practice of the subject was statistically significant in type of staff, age group, education level, the working periods, and marital status. There was positive association between attitude and practice(r=.63, ${\rho}$< 001). By means of multiple stepwise regression analysis, total variance explained by the attitude towards infectious wastes, single employee, and the working periods less than ten years was 44% of the practice of infectious wastes. Conclusion: An educational program focusing on strategy to change employee's attitude can be effective for building a well-organized management system.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.859-863
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• 2007

Most of construction companies recognize importance of immaterial assets in an age of unlimited competition. And construction companies that are concerned about Knowledge Management have used the system of it for critical ability of company. But they used the system for the storage of construction knowledge. So, the present KM system was gradually under operating. To introduce KMS based on Business Process Management(BPM), the purpose of this study is to consider BPM and KMS through the existing researches. we deduce the concept for introducing KMS based on BPM and present the expected effectiveness of it. Finally, we present the prototype of system for KMS based on BPM.

• Child Health Nursing Research
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• v.25 no.4
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• pp.518-527
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• 2019

Purpose: The purpose of this study was to identify the effects of an educational intervention by evaluating neonatal emergency airway management knowledge, critical thinking disposition, problem-solving ability, and confidence in clinical performance after developing and operating a simulation-based neonatal emergency airway management education program for nurses in a neonatal intensive care unit. Methods: The participants were 30 nurses in a neonatal intensive care unit. Data were collected from June 6 to 15, 2018 and analyzed using IBM SPSS version 22.0. Results: The results of the pretest and posttest for each educational group showed statistically significant improvements in neonatal emergency airway management knowledge, critical thinking, problem-solving ability, and confidence in clinical performance. Conclusion: The simulation-based neonatal emergency airway management training program was an effective educational program that enhanced neonatal emergency airway management knowledge, critical thinking disposition, problem-solving ability, and confidence in clinical performance among nurses in a neonatal intensive care unit. Therefore, it is suggested that the program described in this study can contribute to improving nursing quality by enhancing the ability of nurses to cope with emergencies in practice. It can also be used for education for new nurses and contribute to the development of nurses' practices.

• Fire Science and Engineering
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• v.3 no.3
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• pp.9-13
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• 1989

This paper realizers expert system which is searched most suitable system of the fire facilities by regulating of fire operating order And so, the user finds the inference, heuristic knowledge of the expert who has a mastery of application of the fire code objected protection, warning or extinguishing of fire. Although some expert systems utilize artificial intelligence such as LISP or PROLOG, this study utilizes M.1 that is available expert system development tool running with personal computer.