• Steel and Composite Structures
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• v.15 no.6
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• pp.585-603
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• 2013

Generally the required strength and stiffness of an I-shaped beam to the box-shaped column connection is achieved if continuity plates are welded to the column flanges from all sides. However, welding the forth edge of a continuity plate to the column flange may not be easily done and is normally accompanied by remarkable difficulties. This study was aimed to propose an alternative for box columns with continuity plates to diminish such problems. For this purpose a double-web I-shaped column was proposed. In this case the strength and rotational stiffness of the connection was provided by nearing the column webs to each other. Finite element studies on about 120 beam-column connections showed that the optimum proportion of the distance between two column webs and the width of the column flange (parameter ${\beta}$) was a function of the ratio of the beam flange width to the column flange width (parameter ${\alpha}$). Hence, based on the finite element results, an equation was proposed to estimate the optimum value of parameter ${\beta}$ in terms of parameter ${\alpha}$ to achieve the highest connection performance. Results also showed that the strength and ductility of post-Northridge connections of such columns are in average 12.5 % and 54% respectively higher than those of box-shaped columns with ordinary continuity plates. Therefore, a double-web I-shaped column of optimum arrangement might be a proper replacement for a box column with continuity plates when beams are rigidly attached to it.

• Journal of Preventive Medicine and Public Health
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• v.48 no.4
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• pp.188-194
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• 2015

Objectives: The goal of this study was to identify association between the continuity of ambulatory care of diabetes patients in South Korea (hereafter Korea) and the incidence of macrovascular complications of diabetes, using claims data compiled by the National Health Insurance Services of Korea. Methods: This study was conducted retrospectively. The subjects of the study were 43 002 patients diagnosed with diabetes in 2007, who were over 30 years of age, and had insurance claim data from 2008. The macrovascular complications of diabetes mellitus were limited to ischemic heart disease and ischemic stroke. We compared the characteristics of the patients in whom macrovascular complications occurred from 2009 to 2012 to the characteristics of the patients who had no such complications. Multiple logistic regression was used to assess the effects of continuity of ambulatory care on diabetic macrovascular complications. The continuity of ambulatory diabetes care was estimated by metrics such as the medication possession ratio, the quarterly continuity of care and the number of clinics that were visited. Results: Patients with macrovascular complications showed statistically significant differences regarding sex, age, comorbidities, hypertension, dyslipidemia and continuity of ambulatory diabetes care. Visiting a lower number of clinics reduced the odds ratio for macrovascular complications of diabetes. A medication possession ratio below 80% was associated with an increased odds ratio for macrovascular complications, but this result was of borderline statistical significance. Conclusions: Diabetes care by regular health care providers was found to be associated with a lower occurrence of diabetic macrovascular complications. This result has policy implications for the Korean health care system, in which the delivery system does not work properly.

• Journal of Korean Society of societal Security
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• v.1 no.1
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• pp.69-79
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• 2008

Operational continuity is not a simple issue that can be solved by a Back-Up center or an alternate site. Strategic issues including law, standards, etc demand a new approach in terms of the operational continuity management (OCM). Also, it is necessary to develop a new framework of OCM governance as a part of the corporate governance. Experts from corporate governance insist that OCM can be included in the corporate operational control and so it is important to set up a strategy for OCM in the organization. This paper describes how OCM governance suggests two aspects of effectively controlling corporate risks in the viewpoint of corporate governance. First of all, the top corporate management develops the strategy of operational continuity with regard to the corporate governance. Secondly, there is the aspect of how to build up and manage the strategy of operational continuity in the corporations.

• Journal of Korean Elementary Science Education
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• v.40 no.3
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• pp.295-310
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• 2021

For the continuous growth and development of students, continuity of learning content according to the school level is essential. However, research on the continuity of kindergarten education and elementary school science curriculum is relatively insufficient. In this respect, it is necessary to precede the analysis of the continuity between the science-related learning content presented in kindergarten education and the science curriculum in elementary school. In this study, the 2015 science curriculum was organized into 14 small sections, and the core contents of science education in kindergartens and elementary schools were presented as correspondence. As a result, it was possible to classify learning contents presented only in kindergarten, learning contents presented only in elementary schools, and learning contents showing a clear continuity between kindergarten and elementary school. This study is meaningful in that it presents implications for the continuity between the science curriculum of the kindergarten curriculum and the elementary school curriculum.

• Communications of the Korean Mathematical Society
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• v.2 no.1
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• pp.59-62
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• 1987

• School Mathematics
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• v.17 no.2
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• pp.257-272
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• 2015

This study is related to reinforcement of the continuity between Nuri curriculum and elementary mathematics curriculum emphasized by 2015 revised national curriculum. Considering that teachers tend to rely much more on textbooks than on curriculum, we analyzed the continuity between math-related activities of Nuri manuals for teachers and the elementary mathematics textbooks and aimed to suggest several ways for securing the continuity based on the result of analyses. To do this, we compared and analyzed Nuri manuals (for ages three to five) for teachers and the first and second grade mathematics textbooks in three aspects: mathematical contents, mathematical terms and symbols, and mathematical processes. We adopted the same analysis framework including continuity, discontinuity and reverse continuity as the study on the continuity between Nuri curriculum and elementary mathematics curriculum. As a result, the results of analyses were revealed in three aspects, respectively. We also discussed the results and suggested some implications for securing the continuity of Nuri manuals for teachers and the elementary mathematics textbooks and for revising curriculum and its materials such as textbooks, workbooks or manuals for teachers.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.6
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• pp.2161-2168
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• 2010

The administration data of the national health insurance and health insurance bills were utilized in this study. The data of 485,953 patients who were at the age of 30 and up and used the out-patient departments of every medical institution located in some regions involving two southern and northern provinces once or more during a 184-day period from July to December, 2008. As a result of analyzing their Continuity of Ambulatory Care and factors affecting it, the following findings were given: The continuity of ambulatory care among the adult patients with hypertension in our country turned out to be on a high level(MMCI $0.96{\pm}0.13$, MFPC $0.96{\pm}0.12$). Given examining the outpatient medical-cure continuity level according to index, the averagely medical-cure continuity level was calculated to be high level with MMCI, $0.96{\pm}0.13$, and MFPC $0.96{\pm}0.12$. Thus, the tendency of visiting only one medical provider was high. The findings of the study illustrated that the average continuity of ambulatory care among the adult patients with hypertension in our country was on a high level, and it seemed that special care should be provided to patients with a low-level continuity of ambulatory care, such as women and elderly people aged 64 and over. The findings of the study are expected to serve as one of the barometers for the health care of patients with hypertension and for the performance of national hypertension management plans.

• The Journal of the Convergence on Culture Technology
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• v.9 no.6
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• pp.57-66
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• 2023

Purpose: This study is a descriptive research study to identifying the factors affecting the continuity of educational service of pre-service teachers. Methods: The data collection period was from March 1 to 30, 2023. Self-efficacy, pro-sociality, work preference, and continuity of educational service were investigated for 90 pre-service teachers at two universities in G Metropolitan City. For the analysis of the collected data, IBM SPSS/Win 26.0 was used, and descriptive statistics, ANOVA, Pearson correlation, and multiple regression analysis were performed. RESULTS: As a result of the study, it was found that there was a difference in educational service continuity according to age and major (p<.05). As a result of examining the correlations among work preference, self-efficacy, pro-sociality, and educational service continuity, all four variables had positive correlations (p<.05). As a result of multiple regression analysis to find out which variables had an effect on the continuity of educational service, extrinsic motivation and pro-sociality showed significant results, and the explanatory power of the two variables to explain the continuity of educational service was 57.4%. Discussion: Based on the results of this study, it is thought that it is necessary to develop and apply various programs that can strengthen extrinsic motivation and pro-sociality in order to increase the continuity of educational service.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.63 no.4
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• pp.583-588
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• 2014

In this study, there are examined to the grounding of lightning protection system and electrical continuity tests in the field. The standard for lightning protection system is different design or construction according to the characteristics of the structure. Ground is measured and compared at least four locations. According to the measured results in the field, the sampled values of the ground resistance are measured $5{\Omega}$ or less and the difference between each value is suitable as $0.2{\Omega}$ or less. The values of the electrical continuity test between ground and metal bodies are measured 3 groups such as isolated portion, the mechanical contacted portion, and the electrical continuity portion measuring $0.2{\Omega}$ or less. It is measured to be less than $0.2{\Omega}$ at all in metal bodies of underground. A metal body installed inside the structure is not isolated, but the resistance values are higher than $0.2{\Omega}$. Therefore, It must be carried out the structure having lightning protection system confirm the LPL(lightning protection level) and design the strategy.

• Steel and Composite Structures
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• v.21 no.1
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• pp.73-91
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• 2016

The use of box columns has been increased due to the rigidity in rigid orthogonal moment resisting frames. On the other hand, the installation and welding of necessary horizontal continuity plates inside the columns are both labor-consuming and costly tasks. Accordingly, in this paper, a new beam-to-box column connection by trapezoidal external stiffeners and horizontal bar mats is presented to provide seismic parameters. The proposed connection consists of eight external stiffeners in the level of beam flanges and five horizontal bar mats in Concrete Filled Tube (CFT) columns. The new connection effectively alleviates the stress concentration and moves the plastic hinge away from the column face by horizontal external stiffeners. In addition, the result shows that proposed connection has provided the required strength and rigidity of connection, so that the increased strength, 8.08% and rigidity, 3.01% are compared to connection with internal continuity plates, also the results indicate that this connection can offer appropriate ductility and energy dissipation capacity for its potential application in moment resisting frames in seismic region. As a result, the proposed connection can be a good alternative for connection with continuity plates.