• Proceedings of the Korean Society of Computer Information Conference
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• 2018.07a
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• pp.87-88
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• 2018

본 연구는 부분유료온라인 게임에서 유저의 게임 이용 기간과 처음 결제 시기간의 상관관계의 검증을 통해 점차 중요도가 높아지고 있는 게임 이용 기간에 대한 요소로서 처음 결제 시기가 적절한지를 알아보았다. 게임 이용 기간과 처음 결제 시기의 상관관계를 검증하기 위해 설문으로 데이터를 수집하고, 회귀분석을 실행하였고 처음 결제 시기가 게임 이용 기간에 양적인 방향으로 영향을 끼치는 요소임을 확인하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.2
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• pp.816-819
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• 2005

In Java virtual machine which is the running environment of Java programs, almost every bytecode execution requires data transfers in memory. Data transfer incurs energy consumption and hence minimizing the transfer operation is very important for improving the energy efficiency of JVM. As the number of data transfers for a Java iterative statement is directly proportional to the iteration count, improving the energy efficiency of iterative statement is crucial to keep the energy efficiency of JVM high. This paper analyzes Java iterative statement at bytecode level and proposes some points how to improve the energy efficiency.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07a
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• pp.58-60
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• 2005

기업의 computing process에서는 기업의 주요업무 및 전략을 분석 정의하여 이것을 computing resource에 실행한다. 이를 위하여, 일반적으로, 여러 개발자들이 공유개발환경을 통하여 프로세스를 개발하고 이를 운영한다. 현재 Enterprise Computing Environment에서는 Grid Computing이 필연적 과제이다. Grid Computing에서, Grid Portal은 통합사용자인터페이스를 제공하여 주는 중요한 요소이다. 그러나, 현재의 대부분의 Grid Portal들은 Job Submit 처리를 중점적으로 구현하는데 주력하고 있기 때문에, 기업 computing process의 중요한 요소인 통합적 개발환경에 대한 지원이 부족하다. 본 연구에서는, 이런 부족한 부분을 개선하여, Enterprise Grid 환경을 위한 통합개발환경의 Grid Portal의 모델을 제안한다.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06c
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• pp.403-405
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• 2012

본 연구에서는 독서장애인을 위한 전자책용 어노테이션의 탐색 및 재생 기법을 제안하고 이를 음성 어노테이션 브라우징 시스템이라 칭하였다. 제안된 음성어노테이션 브라우징 시스템은 명령 입력, 중요도 분석 및 추천, 검색, 출력단계로 구성된다. 특히 본 연구에서는 대상 사용자가 청각 의존도가 높은 독서장애인들이기 때문에 완전히 청각에 의존해서 사용할 수 있도록 모든 단계에서 음성인식 기능을 제공한다. 제안된 음성 어노테이션 브라우징 시스템의 효율성을 검증하기 위해 안드로이드 환경에서 실행되는 전자책 소프트웨어와 음성 어노테이션 브라우징 시스템을 설계하고 구현하였다.

• Korean Journal of School Psychology
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• v.17 no.3
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• pp.401-419
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• 2020

The purpose of this study was to validate the Korean Implementation Fidelity Checklist of Tier 1 School-Wide Positive Behavior Support (KIFC-T1) for use in the Korean educational system. Tier 1 support, which is universal supports, within a multi-tiered, school-wide positive behavior support (SWPBS) model, aims to provide support to and prevent problem behaviors among all students in a school. The initial KIFC-T1 consisted of 48 items and 11 factors and was developed based on a literature review. Its content was validated by experts. The validated KIFC-T1 was introduced to 185 special school teachers who had experience implementing SWPBS and who used the instrument to assess the degree to which their schools had implemented Tier 1 support. Based on their responses, the construct validity of the KIFC-T1 was examined using factor, item, and internal consistency reliability analyses. The concurrent validity of the tool was examined using the PBS Evaluation Tool, School Climate Questionnaire, School Discipline Practice Scale, and PBS Effectiveness Scale. The analyses revealed that KIFC-T1 had a stable five-factor structure with 35 items, had good reliability (Cronbach's α=.956, each factor's Cronbach's α=.834-.951), and its results were statistically significantly correlated with those of the PBS Evaluation Tool, School Discipline Practice Scale, and the PBS Effectiveness Scale. However the KIFC-T1's results were not statistically significantly correlated with the results of the School Climate Questionnaire. These results suggest that KIFC-T1 is a reliable and valid tool for assessing the fidelity of universal support implementations.

• Journal of the Korean Society for Library and Information Science
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• v.58 no.3
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• pp.265-286
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• 2024

This study aims to develop a vision and policy plan to realize the humanities and social values of libraries in Gyeongsangbuk-do and to respond to the rapidly changing social environment of the future. To achieve this goal, seven evaluation criteria were identified, and 19 evaluation indicators were selected. Implications were drawn by assessing the performance and importance of plan implementation. A major implication was that while the perception of the plan's extent and importance was generally high, the extent and importance of items such as establishing and operating a joint archive, providing employment and entrepreneurship support programs for people of all ages, and activating parent volunteers were all low. Based on these findings, the policy tasks were developed, consisting of 10 policy tasks and 28 action tasks under four strategies.

• Journal of the Korean Institute of Telematics and Electronics C
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• v.35C no.11
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• pp.11-20
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• 1998

Testability analysis computes controllabilities and observabilities of all lines of a circuit and then evaluates fault coverage. The values of controllability and observability as well as fault coverage produced by testability analysis are used for applications of testability analysis. ITEM was evaluated as a fault coverage tool. But the values of controllability and observability at all lines of circuits must be estimated as a performance measure of testability tools for another application such as partial scan. In this paper, partial scan method based on sensitivity analysis which estimates relative improvement of detectability of circuits after scanning a flip-flop is used for performance evaluation of ITEM. Performance of ITEM, with respect to testability values on each net, has been measured by comparing ITEM and STAFAN. Partial scan performance achieved by ITEM is very similar to that of STAFAN, but ITEM takes less CPU time. Therefore ITEM is very efficient for partial scan application because ITEM runs faster for very large circuits in which execution time is critical.

• Journal of Digital Convergence
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• v.14 no.8
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• pp.503-513
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• 2016

The purpose of this study is to explore the meaning(significance) of improving early childhood music teaching classes while analyzing microteaching in small group mentoring process. Improvement on teaching was carried out in the form of fellow teacher mentoring made up of small groups of 4 members through microteaching analysis, and the research findings are as follows. First, it was discovered that a clear understanding of musical concepts and theories must take precedence for desirable teaching of early childhood music. Second, it could be confirmed whether musical concepts are well integrated with actual early childhood music teaching activities through small group mentoring. Third, in the process of small group mentoring using microteaching analysis, sympathy was found to be highly important in the improvement on early childhood music teaching by research participants.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.17 no.2
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• pp.53-64
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• 2022

The purpose of this study is to analyze the difference in importance and performance of the university start-up support system focusing on D university students to grasp the perception of the start-up support system provided the university from the perspective of students who are real users. Through this, a plan for qualitative growth and advancement of the university start-up system was derived using the IPA (importance-performance analysis) analysis. The findings are as follows. The importance of all elements of university start-up education and start-up support system is higher than the performance, which means that the start-up education and support programs currently implemented by universities are recognized as important, but do not play a big role in terms of performance for students. In addition, the highest priority factors for improvement in the importance-performance matrix were funding and investment support, start-up space and facilities support, management advisory, patent and intellectual property support, and entrepreneurship field practice. Therefore, This study can be used as objective data to identify the factors that universities should focus on and establish a start-up support system from a long-term perspective, and to build and operate a start-up support system that reflects the needs of students.

• Applied Biological Chemistry
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• v.50 no.4
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• pp.245-252
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• 2007

FTA (fault tree analysis), an analytical method for system failure management, was employed in the management of faults in running PCR analysis. PCR is executed through several processes, in which the process of PCR machine operation was selected for the analysis by FTA. The reason for choosing the simplest process in the PCR analysis was to adopt it as a first trial to test a feasibility of the FTA approach. First, fault events-top event, intermediate event, basic events-were identified by survey on expert knowledge of PCR. Then those events were correlated deductively to build a fault tree in hierarchical structure. The fault tree was evaluated qualitatively and quantitatively, yielding minimal cut sets, structural importance, common cause vulnerability, simulation of probability of occurrence of top event, cut set importance, item importance and sensitivity. The top event was 'errors in the step of PCR machine operation in running PCR analysis'. The major intermediate events were 'failures in instrument' and 'errors in actions in experiment'. The basic events were four events, one event and one event based on human errors, instrument failure and energy source failure, respectively. Those events were combined with Boolean logic gates-AND or OR, constructing a fault tree. In the qualitative evaluation of the tree, the basic events-'errors in preparing the reaction mixture', 'errors in setting temperature and time of PCR machine', 'failure of electrical power during running PCR machine', 'errors in selecting adequate PCR machine'-proved the most critical in the occurrence of the fault of the top event. In the quantitative evaluation, the list of the critical events were not the same as that from the qualitative evaluation. It was because the probability value of PCR machine failure, not on the list above though, increased with used time, and the probability of the events of electricity failure and defective of PCR machine were given zero due to rare likelihood of the events in general. It was concluded that this feasibility study is worth being a means to introduce the novel technique, FTA, to the management of faults in running PCR analysis.