• Journal of Digital Convergence
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• v.15 no.4
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• pp.489-497
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• 2017

The purpose of this study is to develop case management activities inventory and analyze the perception on case management practice using importance-performance analysis(IPA) in community welfare centers. The comprehensive literature review and the content analysis from the professional scholar and social workers produced 89 items of case management activities items. A survey was conducted to 277 case managers in community welfare centers. The exploratory factor analysis, reliability and validity analysis developed the case management activities inventory comprised of 11 factors and 61 items. Suggestions were made to improve case management practice in community welfare centers.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.32 no.6B
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• pp.363-371
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• 2012

In this study, the low-flow frequency analysis was performed to determine the low-flow standard of dam maintenance flow for Hwacheon and Chuncheon dams. For this purpose, two methods (case 1: low-flow frequency analysis using the monthly inflow data of the specified return periods, case 2: low-flow frequency analysis using the difference of monthly accumulated inflow) were applied. As a result, it is found that the monthly inflow data of the return periods by reflecting the statistical characteristics of Hwacheon and Chuncheon dams can be utilized to determine the standard of maintenance flow or water level.

• Journal of the Korean Society of Safety
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• v.32 no.4
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• pp.129-136
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• 2017

This study investigated the probability of possible accident through qualitative and quantitative analysis of the pressure safety valve types installed in facilities using high pressure gas to compare the installation domestic and foreign pressure safety valve standards sought the safety characteristics and safety improvement direction accordingly. The three types are the case where the shut-off valve is not installed at the front of the PSV (Case A), If a shut-off valve is installed at the front of the PSV for inspection (Case B) and If a shut-off valve is installed in front of PSV (C.S.O), PSV is installed in parallel (Case C). Three types of cases were compared with FTA and HAZOP. The results of study of the possible accidents due to over-pressure safety valve installation type, used in a high-pressure gas facilities was shows in the following order Case B > Case A > Case C. The results of analysis through FTA was in order to protect the reservoir for the possible occurring of accident the safety valve installation is depend on its type. In the FTA analysis, defects in the device itself which attached to the storage tank as a substitute for analysis of the probability of operator mistakes was Case B with as high as $2.01{\times}10^{-6}$. Depending on the type of installation analysis of Case B in order to ensure safety is prohibited to install shut-off valve and believes that mandatory regulations are needed. Rationally installing of pressure safety valve in the high pressure using facilities will be expected to improve the industrial safety from severe accidents such as high-pressure gas fire explosion.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.22 no.8
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• pp.1823-1832
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• 1997

In this ppaer, fault coverage analysis of a conformance test case for communication protocols, specified as a deterministic finite state machine(DFSM) is presented. The fault coverage analysis of a test case is defined by measuring the extent of the faults detected using a generated test case. The method that evaluates fault coverage analysis for a test case, has been researched by arithmetic analysis and simulation. In this paper, we designed and implemented a simulator for fault coverage analysis of a communication protocol teat case. With this result for Inres protocol, output fault and state merge and split fault have a high fault coverage of 100%. This simulator can be widely used with new fault coverage analysis tools by applying it to various protocols.

• Journal of the Korean Operations Research and Management Science Society
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• v.28 no.2
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• pp.91-103
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• 2003

Use case modeling on UML (Unified Modeling Language) is getting widely used in OOAD and CBD and it is considered a useful technique in dealing with the complexity of the requirements analysis. However, some of the problems with use case modeling are that it is not structured, difficult to handle non-functional requirements, and to analyze impacts among use cases. To alleviate these problems, we propose a scenario-based goal-oriented approach for use case modeling. The proposed approach is to apply a goal-oriented analysis method to use case modeling. Since goal-oriented analysis method is not systematic and many heuristics are involved, we have adopted scenarios as the basis for goal extraction. The proposed method is applied to CBIS (City Bus Information Subsystem) in ITS (Intelligent Transportation System) domain. The proposed approach helps software engineers to analyze the impact among use cases and represent non-functional requirements.

• The KIPS Transactions:PartD
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• v.16D no.6
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• pp.927-934
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• 2009

This paper presents a commonality and variability analysis method for UML CASE tool frameworks. Commonality and Variability analysis increase extension and reusability by separating common area and variable area. We suggest class category based on property and the notation to represent commonality and variability. It is also implements frameworks based on analysis method and verify method using defect removal efficiency.

• Journal of KSNVE
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• v.10 no.2
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• pp.319-324
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• 2000

This paper shows hot to model the submerged elastic structures and adequate analysis tools for modal behavior when using finite element and boundary element method. Four different cases are reviewed depending on the location of the water and air. First case is that structures are filled with air and water is located outside. Second case is opposite to case one. These cases are solved by direct approach using collocation procedure. Third case is that water is located both sides of structures. Last case is that air is located both sides. These cases are solved by indirect approach using variational procedure. As analysis tools harmonic frequency sweep analysis and eigenvalue iteration method are selected to obtain the natural frequencies of vibrating submerged structures depending on the cases. Results are compared with closed form solutions of submerged spherical shell.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2006.05a
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• pp.232-237
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• 2006

Operation deflection shapes(ODS) is defined as a motion of structure at particular frequency. The ODS is eligible to show any types of structural motions while the modes supply solutions only to linear and stationary motion. The principal vibration source of an auto teller machine(ATM) case was occurred due to resonance which was found by modal analysis. To reduce the vibration of ATM case, the motion of the case was visualized using ODS analysis, which can suggest how to modify the structure. As a result the vibration of the ATM case was greatly reduced with a stiffening bar between the opposite plates.

• The Journal of the Korea Contents Association
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• v.12 no.2
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• pp.284-291
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• 2012

This study is to present development plan for next study on applying the method of case study by applying scientific inference focusing on analysis and generalization of case study or study question about the tendency of thesis for case study of the field of crisis management released since 2004. As the result of analysis, the study on crisis management of Korea is almost individual technical case study and it is rarely to get proper study which can contribute theoretical formation for development of individual course of crisis management. Furthermore researchers are required to study in-depth about study plan that presents organization of study or logic of case selection and formality for data analysis.

• Journal of Sasang Constitutional Medicine
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• v.21 no.2
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• pp.107-114
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• 2009

1. Objectives : We analyzed the case reports published by the journal of Sasang Constitutional Medicine, to study Sasang Constitution diagnosis and characteristic of clinical practice. 2. Methods : It has been examined 138 case reports of Sasang Constitution society published from 1994 to 2008. We analyzed. patient's number, publication year, distribution of Sasang Constitution, title's characteristics and bases of constitution diagnosis. 3. Results and conclusions : 1) In the analysis of patient's number, 1 case report was almost part of the case reports, and the case reports ware many published after 2001. 2) In the analysis distribution of Sasang Constitution, Soyangin was the most Sasang Constitution, and Tae-umin was the next one and Soeumin, Taeyangin followed them. 3) In the analysis of the journal's title, Sasang Constitution, disease and symptom of Sasang Constitution were more important than prescription recently. 4) In the analysis of the journal's purpose, unique disease and response of treatment were almost part of the case reports. 5) In the analysis of diagnosis bases, subjective bases were more important than objective bases and Sasang Constitutional drug response. therefore we should do researches in objective bases and drug response in the future.