• Journal of the Korean Society for information Management
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• v.20 no.1
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• pp.53-73
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• 2003

This study is to examine into the research pattern of the each country then, Korea and Japan's library and information science researchers through the ISA database, to analyze the thesis in various aspects which is included in ISA database. It analyzed such as leading authors production. subjects, journals etc. In addition, the study is to analyze the form of citation of Korea and Japan's library and information science researchers by studying the citation written in the thesis of the internationalization of library and information science and indicate the direction of our study in the future.

• Journal of the Korean Institute of Telematics and Electronics S
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• v.35S no.10
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• pp.94-117
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• 1998

This paper investigates the performance characteristics of the data link layer of the 1996 version of IEC/ISA fieldbus which is developed as internatioal standard of fieldbus. A discrete-event simulation model of the data link layer of IEC/ISA fieldbus is developed. Using the simulation model, this paper identifies the network parameters that influence the performance of prioritys scheme and real-time data transmission, and analyzes the delay performance of IEC/ISA fieldbus with respect to the change of network parameters. The simulation model also integrates continuous-time simulation model of a control system as application process. Using the integrated simulation model, this study investigates the effect of network-induced delay on the performance of control system. Since the simulation model developed in this study can predict the network performance, it will be effectively utilized in the design phase of control and automation systems that adopt the IEC/ISA fieldbus.

• 제어로봇시스템학회:학술대회논문집
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• 1997.10a
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• pp.85-88
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• 1997

Fieldbus is the real-time communication network for process control and manufacturing automation systems. IEC/ISA fieldbus was proposed as an international standard of fieldbus network. This protocol is operated on the basis of token-passing and scheduling mechanism. In this paper, we analyze the performance characteristics of the 1996 version of IEC/ISA fieldbus systems.

• Journal of Institute of Control, Robotics and Systems
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• v.2 no.3
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• pp.209-219
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• 1996

Fieldbus provides a real-time data communication among field devices in the process control and manufacturing automation systems. In this paper, a Petri Net model of the 1993 draft of IEC/ISA fieldbus which is proposed as an international standard of fieldbus network is developed. Based on the Petri Net model, discrete-event simulation model of IEC/ISA fieldbus network is developed. This paper evaluates the network induced delay in the data link layer of IEC/ISA fieldbus using the simulation model. In addition, an integrated discrete-event/continuous-time simulation model of fieldbus system and distributed control system is developed. This paper investigates the real-time data processing capability of IEC/ISA fieldbus and the effect of network-induced delay to the performance of control system.

• The Journal of the Korea Contents Association
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• v.22 no.2
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• pp.447-456
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• 2022

Korea's self-support program has constituted one of the most important workfare policy for the past 25 years. However, many pointed out the lack of field perceptions in the performance indicators of self-support program, such as overemphasis on the economic performance and uniform application regardless of regional types. This research intends to derive policy implications to improve performance indicators of self-support program by analyzing field perceptions, utilizing ISA(Importance-Satisfaction Analysis) method. Analysis on the difference between importance and satisfaction shows that the procedure was perceived more important than the consequences. It also reveals that current indicators were not satisfactory enough to reflect field practices. Finally, ISA matrix classified indicators into keep, improve, policy reconsideration area, and obvious differences were found by regional type. These findings suggest the importance of field-orientation in performance indicators, and by which, can serve as an exploratory study for the improvement of performance indicators.

• Journal of the Korean Society for Library and Information Science
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• v.37 no.1
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• pp.61-79
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• 2003

In order to clarify the trend of study by the researchers in the field of library and information science. This study is to analyze the thesis of library and information science researchers in various aspects which is included in LISA and ISA, the representative database in library and information science. In addition, the study is to analyze the form of citation of domestic library and information science researchers by studying the citation written in the thesis of the database according to the classification of form and nationality. The study made a conclusion that the journal is most frequent]y cited regarding forms, which is expected to promote the internationalization of library and information science and indicate the direction of our study in the future.

• Journal of Korean Society of Forest Science
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• v.108 no.1
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• pp.109-115
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• 2019

The objectives of this study was to analyze the importance and satisfaction (ISA) of forest healing instructor training program, targeting on the students educated in 2018. As a result, it was found that students older than forties are the majority as 81 %, and they preferred forest healing instructors as their second future job. When comparing the importance and satisfaction, the students evaluated satisfaction with low grade compared to importance with high grade in all questions. In ISA analysis, it was needed to improve the updated textbook information, to list the example problems by subject, to expose the test subjects in the textbooks, to disclose the test questions and answers, to control the test difficulty, to adjust the test pass rate, to expand the number of test and test sites, to increase the effort for making students understand, to prepare lectures appropriate to practice for forest healing instructor training program by priority.

• Journal of Korean Library and Information Science Society
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• v.41 no.1
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• pp.255-272
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• 2010

This paper aims to describe the measurement and improvement of academic library service quality by ISA (Importance-Satisfaction Analysis). This research established service quality model on based LibQUAL+(R). It consisted of 18 items that formed three dimensions, affect of service quality, information control quality, and library as place quality. To execute this research, the service quality according the users' importance and satisfaction of library service is measured through Gaps model and ISA. The data for this case study was collected through the survey conducted the users of the H University library. By applying SPSS 17.0 and Excel 2007, the final 113 surveys were used for analysis.

• Journal of the Korean Institute of Landscape Architecture
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• v.44 no.1
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• pp.1-15
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• 2016

The purpose of this study is to suggest an improvement plan for the waterfront by conducting an empirical analysis of users of the city's waterfront. For this purpose, this study conducted a field investigation and questionnaire survey on the waterfront of Sincheon, Daegu Metropolitan City. Based on this, this study investigated the importance and satisfaction levels of environmental factors according to the purpose of using the waterfront and proposed the improvement plans through an ISA(Importance-Satisfaction Analysis). The analysis results are as follows. In the case of using the waterfront for exercise, 'The division of bicycle trails and promenades' had the highest level of importance, while satisfaction level for items with 'Convenience facilities such as vending machines, toilets and water fountains' was found to be the lowest. In the case of using the waterfront for leisure and relaxation, 'Tree shade' had the highest level of importance, and the satisfaction level of the item on 'Whether to hold events such as exhibitions' was lowest. The ISA results showed that when the waterfront was used for the purpose of exercise, leisure and relaxation, items such as 'Convenience facilities such as vending machines, toilets and water fountains', 'Cleanliness of space and water quality' and 'Water quality management' had a high level of importance, but had a low level of satisfaction, which suggests that they should be improved on a preferential basis. Next, items requiring intensive improvement for exercise purposes were 'Tree shade', 'Rest facilities such as benches and pergolas', 'Width of bicycle trails and promenades' and 'The division of bicycle trails and promenades'. Leisure and relaxation found that 'Lighting facilities' require improvement. It is expected that if a river improvement project is implemented based on the above results, effective financial commitment and investment will be made.

• Proceedings of the Korean Information Science Society Conference
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• 2007.06b
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• pp.476-481
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• 2007

큰 소수를 빠르게 생성하기 위한 다양한 소수 검사 방법이 개발되었으며, 가장 많이 쓰이는 소수 검사 방법은 trial division과 Fermat (또는 Miller-Rabin) 검사를 조합한 방법과 gcd 연산과 Fermat (또는 Miller-Rabin) 검사를 조합한 방법이다. 이 중 trial division과 조합한 방법에 대해서는 확률적 분석을 이용하여 수행시간을 예측하고 수행시간을 최적화 하는 방법이 개발되었다. 하지만, gcd 연산과 조합한 방법에 대해서는 아무런 연구결과도 제시되어 있지 않다. 본 논문에서는 gcd 연산을 이용한 조합 소수 검사 방법에 대해 확률적 분석을 이용하여 수행시간을 예측하고 수행시간을 최적화 하는 방법을 제안한다.