• Health Policy and Management
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• v.25 no.1
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• pp.31-39
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• 2015

Background: The purpose of this study is comparison of the results between regression and multi-level analysis to find out factors influencing outcome indicators (in-hospital death, length of stay, and medical charges) of stroke patients. Methods: By using patient sample data of Health Insurance Review & Assessment Service, patients admitted with stroke were selected as survey target and 15,864 patients and 762 hospitals were surveyed. Results: For the results of existing regression analysis and multi-level analysis, models were assessed through model suitability index value and as a result, the value of results of multi-level analysis decreased compared to the results of regression, showing it is a better model. Conclusion: Factors influencing in-hospital death of stroke patients were analyzed and as a result, intra-class correlation (ICC) was 13.6%. In factors influencing length of stay, ICC was 11.4%, and medical charges, ICC was 17.7%. It was found that factors influencing the outcome indicators of stroke patients may vary in every hospital. This study could carry out more accurate analysis than existing research findings through analysis of reflecting structure at patient level and hospital level factors and analysis on random effect.

• Proceedings of the Korea Water Resources Association Conference
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• 2009.05a
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• pp.479-484
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• 2009

우리나라에서 많은 하천정비사업이 이루어지고 있으며 하천정비사업을 위해 하천설계가 실시되고 있다. 하천설계시 호안 설계가 중요한 비중을 차지하고 있으나 현재까지 설계된 사업에서 적절한 호안공법이 선정되었는지는 검증이 되지 않고 있다. 따라서 하천설계에 적용된 호안공법의 적합성을 평가할 필요가 있으며, 이에 따라 본 연구에서는 자연형 하천설계에 적용된 호안공법의 적합성을 평가하였다. 평가방법은 편익(B)/비용(C)방법을 사용하였다. 편익평가방법은 기존의 호안을 평가하는데 사용되는 방법을 기본으로하여 약간의 수정을 가하여 사용하였다. 평가항목은 수리적안정성, 환경생태성, 어메너티의 항목으로 되어 있고 각 항목은 몇 개의 소항목으로 구성되어 각 항목별로 평가점수를 부여한다. 다음 하천의 위치에 따라 도시, 농촌, 산지로 분류하여 위치별 가중치를 도입한다. 편익을 하천위치에 따라 3가지 항목평가 점수와 가중치를 곱한 값을 더하여 산정하였다. 비용은 호안시공비와 재료비의 합으로 산정하고 5단계로 등급을 나누었다. 최종적으로 계산된 편익과 비용을 이용하여 호안의 경제성을 평가하였다. 평가에 이용된 하천은 하천분류별로 각각 몇 개씩 선정하였으며 하천보고서를 이용하여 평가하였다. 평가결과는 각 하천별로 점수화할 수 있으며 따라서 호안설계점수를 상대적으로 비교할 수 있다. 호안공법별로 평가한 결과 식생매트를 사용한 호안의 경제성이 가장 좋으며 방틀공법을 사용한 호안의 경제성이 가장 나쁜 것으로 나타났다. 본 연구의 평가방법은 호안을 설계할 때 가장 적절한 호안공법을 선정하는데 도움을 줄 수 있을 것이다.

• Research in Community and Public Health Nursing
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• v.25 no.4
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• pp.225-236
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• 2014

Purpose: The purpose of the study is to develop a tool that can identify drinking motives and measure the degree of problem drinking in female university students. Methods: From June 25th, 2012 to September 21st, 2012, a methodological study was carried out on this subject. A basic questionnaire was made based on research literature and interviews with 8 female university students. The subjects who participated in the survey for factor analysis were 397 female university students from 2 universities in G Metropolitan City. Results: Exploratory and confirmatory factor analyses were conducted using PASW and AMOS 18.0. The developed tool was found to be acceptable in terms of construct validity and modeling suitability. The questionnaire comprised 16 questions on drinking motives in 4 sub-categories including 'relief' (4 questions), 'friendship' (3 questions), 'consolation' (4 questions), and 'escape' (5 questions). Problem drinking consisted of 11 questions in 3 different sub-categories including 'loss of control,' 'health hazards,' and 'sexual hazards.' Conclusion: The questionnaire was proved to have reliability and validity. Finally, the researcher suggests that this questionnaire is adequate for assessing drinking motives and problem drinking of female university students.

• Journal of the Korean Society of Clothing and Textiles
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• v.44 no.3
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• pp.464-484
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• 2020

This study examined obese women with a BMI index over than 25 kg/㎡ in their 20s and 30s regarding the right fit for wearing a blouse. In comparison with three types of existing educational patterns, the first educational pattern experimental clothing was produced in dimensions of three study participants selected by the existing pattern to evaluate the fit suitability conducted for groups of study participants and expert groups. Experimental patterns were designed based on educational pattern C, which was the best fit as a result of the fitting evaluation. The main modification items include front bust circumference, hip circumference, back interscye, scye depth, shoulder length, blouse length, bottom line shape, upper arm circumference, wrist circumference, sleeve length and collar size. The design preferences for obese women were reflected in pattern modification; in addition, the final experimental pattern was designed by adding or subtracting margins and dimensions based on the results of the visual matching assessment by study subjects and expert groups.

• Journal of the Korea Furniture Society
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• v.19 no.6
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• pp.420-427
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• 2008

To study the suitability of chestnut as a cask for ripening traditional liquors, the absorption property for pure water, liquor with 30% alcohol content and ethanol with 95% alcohol content were investigated for five species. Oriental oak had the greatest amount of liquid absorption while chestnut had the smallest amount. The absorption amount linearly increased with increasing soaking time. The absorption amounts for each section were greatest in RT plane, and the difference between LR plane and LT plane was very small for all soaking conditions. The anisotropy of absorption amount for five species was greatest in Japanese cedar and was smallest in white mulberry on the whole. And the change of absorption amounts according to soaking conditions tended to decrease in softwoods and increase in hardwoods, and the difference among wood species was not clear. From this result, it was found that chestnut with a small absorption amount, regarding of soaking behavior, was a good material as a cask for ripening traditional liquors, whereas small diameter oriental oak with a great absorption amount was not suitable in this purpose.

• Spatial Information Research
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• v.11 no.4
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• pp.465-480
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• 2003

Various basic information is required to scientifically and rationally utilize and manage national territory. For this, a variety of informatization projects have on developed from public sectors. However, there are a lot of problems including weak linkage between individual information systems and databases and lack of the coordinating function in promoting national territorial informatization projects. This study aims to provide policy alternatives on the integration and linkage of basic information within national territorial planning system. These results will be applied to the planned utilization and environmental friendly management of national territory.

• Transactions of Materials Processing
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• v.23 no.4
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• pp.211-220
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• 2014

The outer race of a constant velocity (CV) joint having six inner ball grooves has traditionally been manufactured by multi-stage warm forging, which includes forward extrusion, upsetting, backward extrusions, necking, ironing and sizing, and machining. In the current study, a multi-stage cold forging process is examined and an assessment for replacing and modifying the conventional multi-stage warm forging is made. The proposed procedure is simplified to the backward extrusion of the conventional process, and the sizing and necking are combined into a single sizing-necking step. Thus, the forging surface of the six ball grooves can be obtained without additional machining. To verify the suitability of the proposed process, a 3-dimensional numerical simulation on each operation was performed. The forging loads were also predicted. In addition, a structural integrity evaluation for the tools was carried out. Based on the results, it is shown that the dimensional requirements of the outer race can be well met.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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• v.6 no.4
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• pp.369-385
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• 2008

The purpose of site monitoring and investigation is to offer the basic data for performance assessment and design of low- and intermediate-level radioactive waste(LILW) disposal facility by monitoring variations of main site properties continually in the stage of pre-operation, operation and post-closure. Main contents of site monitoring are as follows. In the stage of pre-operation, suitability evaluation for disposal facility and monitoring for constructing and operating disposal facility are performed. In the operation period, monitoring is performed including surroundings to research the influence to environment with operating disposal facility and operate safely and efficiently. In the post-closure period, monitoring about major site properties is performed to prevent the effect of radioactive waste from disposal facility and to secure long-term safety.

• Proceedings of the Korean Society of Crop Science Conference
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• 2005.08a
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• pp.75-87
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• 2005

Remote sensing(RS)- and geographic information system(GIS)-based information management to measure and assess agri-environment schemes, and to quantify and map environment indicators for nature and land use, climate change, air, water and energy balance, waste and material flow is in high demand because it is very helpful in assisting decision making activities of farmers, government, researchers, and consumers. The versatility and ability of RS and GIS containing huge soil database to assess agricultural environment spatially and temporally at various spatial scales were investigated. Spectral and microwave observations were carried out to characterize crop variables and soil properties. Multiple sources RS data from ground sensors, airborne sensors, and also satellite sensors were collected and analyzed to extract features and land cover/use for soils, crops, and vegetation for support precision agriculture, soil/land suitability, soil property estimation, crop growth estimation, runoff potential estimation, irrigated and the estimation of flooded areas in paddy rice fields. RS and GIS play essential roles in a management and monitoring information system. Biosphere-atmosphere interection should also be further studied to improve synergistic modeling for environment and sustainability in agri-environment schemes.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.28 no.3
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• pp.42-57
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• 2005

The National Education Information System(NEIS) has been utilized in primary and secondary schools. In this paper, we consider the NEIS should be used not only for educational administration affairs, but also for a lifelong management of national human resource. The current School Information Management System(SIMS), including the NEIS, is unsatisfactory due to the insufficiency of actual field suitability and end-user's conveniency. To this, we have devised improvements of the SIMS in the seven problem areas: ) The core business process of the school should be analyzed sufficiently and reflected in SIMS. (2) We should fully utilize groupware functions which activate the learning organization. (3) We might apply and use the CRM techniques of enterprises in SIMS. (4) The SIMS should be easy to make necessary school assessment data. (5) We should complement functions of the SIMS for a lifelong healthcare information management of national human resource. (6) The SIMS should support the school lunch management. (7) We should bring BOM and work-flow concepts into the SIMS.