• Journal of Preventive Medicine and Public Health
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• 제17권1호
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• pp.85-93
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• 1984

In order to develop some indicies for the evaluation of village health worker's activities and to find out personal characteristics and other factors that affect the activities, an interview survey was conducted to thirty seven village health workers (VHW) in Sunwon, Naega and Bulun townships in Kangwha county, where the Community Health Project of Yonsei University, College of Medicine, has been implemented for the past ten years. In addition, daily activity records of the VHW's were also analyzed. The results are summarized below: First, meeting attendance rates, number of regular family visits, number of antenatal care visits and number of family planning visits were identified as the most meaningful criterion for the evaluation of the village health worker's activities. Second, personal factors that significantly affect the village health worker's activities were identified as age, educational background, living with in-laws, religion, presence of preschool child in the family, holding leader's position of village woman's association concurrently, and duration serving as a VHW. The more aged and the more educated VHWs were the more effective. Those VHWs who were living with in-laws, without preschool child in the family, holding the leader's position of the village woman's association, and the longer service duration were the more effective. Other factors that affect the VHW's activities were the number of households in the target village and the number of natural villages in the target villages. It showed that the smaller the size of number of households and natural villages, the higher the degrees of the effectiveness of the VHW.

• 한국도로학회논문집
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• 제8권3호
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• pp.21-28
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• 2006

Field or laboratory wheel tracking tests have been employed for the evaluation of the rutting potential of asphalt paving mixtures. Compared to field tests, laboratory wheel tracking tests are much less expensive and more manageable for most road projects. However, most test laboratories are not equipped to perform such tests because there does not exist any standard test procedure, and the required equipment is rather expensive. Futhermore, the size of test specimens and the relatively large quantity of test mixture required present difficulties for laboratory specimen mixing and compaction. This paper describes a project conducted to study the feasibility of replacing wheel tracking testsby a repeated-load creep test for rutting potential evaluation. Comparisons were made between the results of the two tests for different test temperatures, loading speeds and applied pressures. Three types of asphalt mixtures were studied in the test program. Favorable conclusions concerning the use of the repeated-load test for rutting potential evaluation were drawn based on the findings of the experimental test results. The correlation between the two types of tests was found to be good for all threeasphalt mixtures. Adopting the repeated-load creep test would lead to cost savings since it employs standard test equipment already available in most laboratories. It would also result in substantial time savings due to the much smaller quantity of mix needed, and the ease in specimen preparation.

• 신재생에너지
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• 제16권2호
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• pp.14-19
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• 2020

Recently, a project to build a carbon zero island with no carbon emissions has been carried out by replacing diesel generators with renewable energy sources in island areas where diesel generators supplied local loads as independent systems. To minimize damage to the lives of islanders, low noise wind generators should be installed by adjusting the rated speed. In islands with low loads, wind turbines that are more efficient than medium-sized wind turbines should be installed. In this study, the generator field analysis and characteristics were analyzed to develop 230 kW-class low wind medium-wind turbine technology. The electromagnetic field analysis program used Maxwell. As a result, the cogging torque was reduced, and the initial maneuver wind speed and loss value were lowered. Hence, the output amount was increased with high efficiency.

• 한국작물학회지
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• 제56권3호
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• pp.250-254
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• 2011

The study was carried out to evaluate the affect of proton beam radiation on production of bulbil and tuber including change of endogenous gibberellins, of Dioscorea opposita Thunb. The yield of bulbils and tubers from non- and irradiated D. opposita Thunb at doses of 5, 10, 15 and 20 Gy were determined. Endogenous gibberellins were also quantified by GC/MS analysis. D. opposita tubers irradiated at 15 Gy produced higher bulbil production than non-irradiated plants. Enlarged bulbil (above size diameter 4 mm) was significantly increased at 15 Gy. Bioactive endogenous $GA_4$ was dominant in bulbils and tubers irradiated with proton beam rather than $GA_1$. Major gibberellins biosynthetic pathways in bulbils and tubers of D. opposita plants were non C-13 hydroxylation route. From the results of this study, 15 Gy proton beam radiation was suggested as an optimal dose that can produce high amounts of bulbil for mass production of D. opposita plant.

• 인터넷정보학회논문지
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• 제7권6호
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• pp.21-40
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• 2006

지식 기반 사회가 구축되면서 처리해야 할 업무 프로세스의 규모가 커지고 분석할 정보의 양이 증가함으로 인해 프로세스 관리와 개선에 대한 필요성이 높아지고 있다. 본 논문에서는 비즈니스 프로세스 관리를 위해 프로세스 수행에 필요한 명확한 규칙과 정의를 관리하는 룰 에이전트를 적용하여 프로세스의 정확한 수행을 가능하게 하고 일정관리 에이전트를 적용하여 프로세스 수행에 투입된 개개인의 일정을 정확하게 측정하고 관리할 수 있도록 했다. 에이전트를 적용한 프로세스 관리 모델은 조직 차원에서 비즈니스 프로세스의 자동화와 프로세스 중복 제거를 통한 프로세스의 통제성, 유연성, 민첩성, 신뢰성, 재사용성을 높이고 개인 차원에서는 개인의 프로세스 역량을 측정하고 프로세스 개선점을 식별하여 개선할 수 있도록 설계 및 구현하였다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 춘계 학술발표회
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• pp.38-47
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• 2009

Scour means the erosion of bed material by flow change when a bridge is constructed in a stream. Scour is one of the critical factors of a bridge failure. There are several methods for the monitoring of scour near bridge foundations; Sounding rods, Magnetic sliding collar System, Sonar system, underwater camera system and so on. In general, Sonar system is preferred due to its convenience and good accuracy. In this study, the new scour monitoring system was developed using profiling sonar sensor. The new system can measure a line profile of a seabed and has small size due to the effectively designed data logger. The performance of the new scour monitoring system was evaluated at a bridge pier in tidal environment. The measured local scour depths were discussed with the result of the empirical formulas; CSU, Froehlich, Laursen and Neill.

• 가정과삶의질연구
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• 제21권3호
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• pp.39-46
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• 2003

There are three main purposes in this study. First, we project the number of elderly dementia population in the future based on the projection of the elderly population in the Kyungpook area. Second, the demands of home-based care service and facility-based care for the elderly dementia are estimated. Thirdly, some policy implications for the improvement of welfare services for the elderly dementia are addressed. The findings of this study are as follows. Considering the size of the elderly dementia population, facilities for the elderly dementia are extremely insufficient and most of the elderly dementia patients rely heavily on home-based care. Although we expect that there will be a rapid increase in the number of the elderly dementia in the next two decades, the social welfare services for them in the future are very unreliable. Home nursing for the demented elderly needs to be recognized by law and financed by the government. In this context, we address some issues regarding the rapid growth of the elderly dementia population in the future and social welfare services for them as well. Finally we suggest some policy implications regarding this matter.

• Journal of Construction Engineering and Project Management
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• 제1권1호
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• pp.11-17
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• 2011

According to the United Nations Framework Convention on Climate Change (UNFCCC), many countries around the world have been concerned with reducing Greenhouse Gas (GHG) emissions. Reducing the level of building energy consumption is particularly important in bringing GHG down. Because of this, many countries including the US and the EU are enforcing energy-related policies. However, these policies are focused on management of single types of buildings such as public buildings and office buildings, instead of management on a national level. Thus, although various policies have been enforced in many countries, $CO_2$ management on a national level is still not an area of focus. Therefore, this study proposed a community-based $CO_2$ management process that allows government-led GHG management. The minimum unit of the community in this study is a plot, and the process consists of three steps. First, the current condition of the GHG emission was identified by plot. Second, based on the identified results, the GHG emission reduction target was distributed per plot by reflecting the weighted value according to (i) the target $CO_2$ reduction in the buildings in the standard year, (ii) region, and (iii) building usage and size. Finally, to achieve the allocated target reduction, building energy management was executed according to the properties of the building located on each plot. It can be expected that the proposed community-based $CO_2$ management process will enable government-level GHG management, through which environment-friendly building construction can be promoted.

• Journal of the Korean Data and Information Science Society
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• 제11권2호
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• pp.189-199
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• 2000

불연속면의 분석은 방향성 데이터로서 적은 표본을 가지고 암반의 전체를 추론해야 하는 문제를 갖고 있다. 실험실에서 분석된 표본은 시추공에 의하여 분석된 데이터이므로 그 크기가 제한되어 있어, 거대한 암석을 분석하는 것은 대단히 어렵다. 따라서 이런 표본을 이용하여 거대한 암석의 대표 방향성, 집락 정도, 불연속면의 간격, 암석의 크기를 결정하는 연장성에 관하여 가정된 분포 하에서 계산하고, 이를 이용하여 암석의 분포형태를 관찰할 수 있는 확률 절리망을 그리는 알고리즘을 연구한다. 그리고 실제 불연속면 데이터를 적용하여 이들을 구하고 확률절리망을 작성한다.

• 산업경영시스템학회지
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• 제35권4호
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• pp.73-82
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• 2012

Currently, R&D investment of government is increased dramatically. However, the budget of the government is different depending on the size of ministry and priorities, and then it is difficult to obtain consensus on the budget. They did not establish decision support systems to evaluate and execute R&D budget. In this paper, we analyze factors affecting research funds by linear regression and decision tree analysis in order to increase investment efficiency in national research project. Moreover, we suggested strategies that budget is estimated reasonably.