• KOREAN JOURNAL OF CROP SCIENCE
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• v.59 no.1
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• pp.16-21
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• 2014

Yield, growth characteristics, free radical-scavenging capacities, total phenolic contents and free amino acids contents were determined in Amaranthus species grown in Korea. And this study was aimed to investigate the functional properties of Amaranthus in two regions(Gangneung and Daegwallyeong). Yield ranged from 125 to 465 kg $10a^{-1}$ and RRC 1027 was the highest yield. Amaranthus seed size was very small, average seed weight(1,000 seeds) varied 0.42~0.82 g, especially Kerala Red was the most light weight. In DPPH (1,1-diphenyl-2-picryl hydrazyl) radical scavenging activity, there is no significantly different between growing regions but colored Kerala Red was the highest among varieties. The total amount of phenolic compounds varied from 994 to 1,732 mg/kg. Among amino acids of seeds, the contents were in order of glutamic acid(30.5 mg $100g^{-1}$) > aspartic acid (26.1 mg $100g^{-1}$) > arginine(24.3 mg $100g^{-1}$). The present study shows that South Korea is suitable for the cultivation of Amaranthus. Common grains lack glutamic acid, aspartic acid and arginine we need for optimal health, but Amaranthus contains these amino acids. Amaranthus is great potential to develop new crop. But for measurement of antioxidant activity, in addition to DPPH method we are looking the other way.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.6
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• pp.389-402
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• 2020

This study aimed to develop an educational program for improving the learning competencies of major courses for Chinese graduate students who account for more than 70% of international students in Korea. In this study, the program was developed using Caffarella and Daffron's interactive model. Due to the internationalization of education, the number of foreigners who study in Korea for degree courses has already exceeded 100,000, but the dropout rate has increased due to the maladjustment to university life. More specifically, they face difficulties in academic achievement because of a lack of understanding lecture contents, conducting research, and presenting in class. Therefore, this study surveyed the Chinese students in the graduate course to identify the difficulties and needs in their study of major courses and to reflect those needs (major knowledge, communication, assignment writing, and presentation) in program development. This study focused on developing an educational program for improving their learning competencies of major courses rather than simply improving Korean language skills or adapting to university life. The results of the study are expected to help Chinese Graduate students perform well in their major course studies and make their study abroad successful.

• Korean Journal of Construction Engineering and Management
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• v.18 no.2
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• pp.81-90
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• 2017

In Imjin River basin, three floods occurred between 1996 and 1999, causing many casualties and economic losses of 900 billion won. In Korea, flood damage is expected to increase in the future due to climate change. This study used the climate scenarios to estimate future flood damage costs and suggested a real options-based economic assessment method. Using proposed method, the flood control infrastructures in Imjin River basin were selected as a case study site to analyze the economic feasibility of the investment. Using RCP (Representative Concentration Pathway) climate scenarios, the future flood damage costs were estimated through simulated rainfall data. This study analyzed the flood reduction benefits through investment in the flood control infrastructures. The volatility of flood damage reduction benefits were estimated assuming that the RCP8.5 and RCP4.5 climate scenarios would be realized in the future. In 2071, the project option value would be determined by applying an extension option to invest in an upgrading that would allow the project to adapt to the flood of the 200-year return period. The results of the option values show that the two investment scenarios are economically feasible and the project under RCP8.5 climate scenario has more flood damage reduction benefits than RCP4.5. This study will help government decision makers to consider the uncertainty of climate change in the economic assessment of flood control infrastructures using real options analysis. We also proposed a method to quantify climate risk factors into economic values by using rainfall data provided by climate scenarios.

• Journal of Applied Biological Chemistry
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• v.52 no.3
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• pp.121-125
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• 2009

We measured the influence of antifungal antagonists Bacillus subtilis AH18 and Bacillus licheniformis K11 on soil microbial community in microcosms. Both antifungal antagonists were confirmed to suppress hot pepper phytophthora blight. Phospholipid fatty acids (PLFA) were analyzed to investigate the soil microbial community. B. subtilis AH18 changed the total PLFA composition and bio-indicators of PLFA, compared with other treatments. B. subtilis AH18 decreased the proportion of bacteria and gram negative/gram positive bacteria, and increased the fungi/bacteria and anaerobic/aerobic microorganisms. In addition cy19:0/18:$1{\omega}7c$, which means adaptation to unfavorable environmental conditions, was increased by the application of B. subtilis AH18. On the other hand the inoculation of B. licheniformis K11 or combined inoculation of both antifungal strains did not affect soil microbial community. The suppression of phytophthora blight and preservation of indigenous soil microbial community may be achieved by the combined application of B. subtilis AH18 and B. licheniformis K11.

• Korean Journal of Social Welfare
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• v.55
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• pp.131-153
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• 2003

This study was aimed at investigating important factors influencing career success among disabled workers. The current researcher scrutinized the degree to which variables and factors affect the career success and occupational turnover rates of the research participants. The participants in this study (n=837) were 374 workers with disabilities and 463 workers without disabilities. The results of this study can be summarized as follows: First, the results of factor analysis showed important categories of conceptual themes of career success. The initial conceptual factor model did not accord with the empirical one. Second, both research participant groups seemed to be influenced by their occupational types. However, all predictive variables excluding the wage rate and the average length of work years had significant impact on job success for the disabled work group, while all the variables excluding the frequency of advice and length of working years had significant impact on job success for the non-disabled worker group. Third, the turnover rate was significantly influenced by the age and the experience of turnover of the research participants. However, the number of co-workers was the strongest predictive variable for the worker group with disabilities, but the occupation choice variable for the worker group without disabilities. Fifth, as a result of verifying the hypothetical path model, it showed that the first model was somewhat proper and could predict the career success on both research participant groups. In conclusion, the following research implications can be suggested. The occupational type of research participants was one of the most important variables to predict the career success for both research participant groups.

• Journal of the Korea Furniture Society
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• v.21 no.6
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• pp.505-514
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• 2010

The aim of study is to suggest the improvement of the major curriculum used in the department of furniture design in two-year colleges. For this purpose two processes were conducted step by step. The first phase was to evaluate the jobs selected by job analysis specialist and staffs in charge in July 2009, and to analyze what are the desired points for the good adaptability and business improvement in case that student would find job in relevant field after graduating from colleges. Furniture design coordinator hereupon was selected as the object and DACUM (Developing A CurriculUM) was applied to the method of job analysis. In the second process conducted from September 2009 to October 2010, the customized curriculum based on the result from the first phase was newly opened to help student create any design result. This study was composed of the result of job analysis, the customized curriculum based on it and the research of efficiency through the end result and finally the discussion how to improve the customized education for the future. It is no doubt very important process for the step up of quality of college education, the improvement of students' competence and their good adaptability after finding jobs. This study should lay the foundation of different job analysis and the customized curriculums accordingly for not only furniture design coordinator, also for various furniture design-related jobs, and furthermore it should be expected that the continuous research and development contributes to the realization of college education to raise excellent students.

• Journal of Chest Surgery
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• v.39 no.8 s.265
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• pp.598-603
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• 2006

Background: High thoracic epidural anesthesia allows awake coronary artery bypass grafting, avoiding the drawbacks of mechanical ventilation and general anesthesia. Materian and Method: From April, 2005 to September, 2005, 12 patients were underwent awake coronary artery bypass grafting using high thoracic epidural anesthesia. There were 1 female and 11 male patients, with a mean age of $66{\pm}6$ years. Off pump coronary artery. bypass grafting was performed through a median sternotomy using arterial grafts. Result: There were no mortality. Pneumothorax was developed during surgery in 8 patients. Five patients required secondary intubation because of pneumothorax (n=3), bowel herniation (n=1), and hemothorax after chest tube insertion (n=1). Postoperative coronary angiography was performed before discharge in all patients and all the grafts were patent. Conclusion: Our intial experience demonstrated the feasibility of awake off-pump coronary artery bypass grafting. Further study is required to define the indications, advantages and limitations of this strategy.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.44 no.4 s.316
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• pp.26-34
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• 2007

Intelligent projection system indicates a system that displays desired images on an arbitrary screen in an arbitrary environment using projector without noticeable image distortion. In recent years, projectors have become widespread and ubiquitous due to their increasing capabilities and declining cost. Moreover, the size of projectors is getting smaller and handhold projectors are emerging. Thanks to these advances, the demand for intelligent projection system has been significantly increased and the demand has led to remarkable progress of the related techniques or technologies to intelligent projection system However, there are still some environments (or conditions, mainly dynamic ones) that intelligent projections systems cannot handle and they have limited the application area of intelligent projection systems. This paper exemplifies such environments (e.g. specular screen, dynamic screen) and propose effective solutions (i.e. multiple overlapping projectors, complementary pattern embedding) for thor And the usefulness of the solutions is verified through experimental results and user evaluation. Notice that the environments are considered not simultaneously but independently because it is impossible to consider them simultaneously by simply combining the solutions for each. Acually, a totally different solution would be necessary to consider them simultaneously. Therefore, we expect that the proposed methods would largely extend the application area of intelligent projection systems except for severely arbitrary environment.

• Proceedings of the KGS Conference
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• 2002.05a
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• pp.77-80
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• 2002

본 논문의 연구목적은, 우리나라 감자재배지역의 분포 특징과 그 중심지를 밝혀 보는데 있다. 이와 같은 목적을 위하여 감자가 외국에서 우리나라에 전파해온 경로와 한국 내에서 의 전파경로를 알아보고, 7개 지역의 감자재배지역의 특징, 우리나라 감자재배의 생산량, 재배면적, 재배농가, 각 시기별 감자 재배지의 중심지와 남한의 감자재배 중심지를 구하였다. 이와 같은 연구내용은 주어진 자연환경에 인간이 어떻게 적응해가면서 살아가는지를 공부하는 지리학의 전통적인 개념인 자연과 인간과의 관계를 이해하는데 도움을 줄 수 있을 뿐만 아니라, 초 중등학교 및 대학에서 공부하는 한국지리 교육과정의 학습자료로서 유용하게 쓰일 수 있을 것으로 기대한다. 연구방법은 문헌연구과 1970년부터 1995년까지의 전국의 시.군별 감자재배지역의 입지계수를 구하여 연구하였다. 그 결과를 요약하면 다음과 같다. 1. 감자가 한국에 처음으로 재배된 것은 1824년(조선조 순조24년) 인데, 전파과정을 살펴보면, 안데스산지의 페루(1500년대) $\longrightarrow$ 에스파냐(1532년) $\longrightarrow$ 중국(1650년) $\longrightarrow$ 한국(1824년)순으로 전파되어온 북방전래설과 영국의 감자가 1832년 충청도의 서산으로, 일본 감자가 1920년에 수원으로 전파되었다는 남방전래설이 있다 2. 감자는 한국 전 지역에서 재배되는 중요 농작물이다 그러나 우리나라의 지형이 남북으로 깊게 뻗은 반도국이므로 위도와 지형 차이에 따라 기온과 고도가 다르게 나타나는데, 이러한 자연적인 요인의 영향이 가장 큰 요인이 되어 고랭지 여름재배지역.중산간 봄재배지역.중부평야 봄재배지역 남부평야 봄재배지역 남부해안 2기작 재배지역.남부 겨울재배지역.제주 가을 월동재배지역 등 7개 지역으로 구분되어 재배된다. 3. 우리나라(남한)의 감자 재배지의 중심지는 강원도 고랭지 여름재배지역과 제주도 가을 월동재배지역, 소백산맥과 진안고원이 만나는 부근 산지지역의 남원군.구례군 거창군.고령군과 남해안의 밀양군.양산군이다. 강원도 지역과 제주도 두지역이 전테 재배면적의 52%를 점유하여 감자 재배지의 핵심지를 이룬다. 4. 한국 감자 재배지역 중심지의 지리적 특징은, 높은 산지지역의 산록완사면에 밭작물로 재배된다는 점과 교통이 불편한 지역으로서 도시화와 산업화 지역의 그늘 지역이 대부분이다. 강원도의 감자 재배지는 감자재배에 적합한 자연환경과 화전농업의 전통, 감자 재배기술의 전파, 중앙정부와 지방정부가 지원하는 각종 연구소 분포와 영농지도, 씨감자 생산과 협동조합의 판로 개척, 도로 개설과 포장 등의 인문지리적 요인이 영농조건을 개선하고 감자 판매를 위한 시장접근을 용이하게 하여, 남한 최대의 감자 재배지역을 형성하였다. 제주도는 산지지형과 따뜻한 기온으로 2기작이 가능하고, 감자가공 공장설립과 교통발달에 따른 육지 시장과의 접근이 용이해졌기 때문에 남한에서 2번째로 큰 감자재배지역이 되었다.(요약 및 결론에서 발췌)

• Journal of Environmental Policy
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• v.13 no.3
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• pp.43-73
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• 2014

Cities in Korea have rapidly urbanized and they are not well prepared for natural disasters which have been increased by climate change. In particular, they often struggle with urban flooding. Recently, green infrastructure has been emphasized as a critical strategy for flood mitigation in developed countries due to its capability to infiltrate water into the ground, provide the ability to absorb and store rainfall, and contribute to mitigating floods. However, in Korea, green infrastructure planning only focuses on esthetic functions or accessibility, and does not think how other functions such as flood mitigation, can be effectively realized. Based on this, we address this critical gap by suggesting the new green infrastructure planning framework for improving urban water cycle and maximizing flood mitigation capacity. This framework includes flood vulnerability assessment for identifying flood risk area and deciding suitable locations for green infrastructure. We propose the use of the combination of frequency ratio model and GIS for flood vulnerability assessment. The framework also includes the selection process of green infrastructure practices under local conditions such as geography, flood experience and finance. Finally, we applied this planning framework to the case study area, namely YeonJe-gu an Nam-gu in Busan. We expect this framework will be incorporated into green infrastructure spatial planning to provide effective decision making process regarding location and design of green infrastructure.