• Title/Summary/Keyword: KDI

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Biodegradation of Diesel with Pseudomonas sp, KDi19 in Liquid Medium (Pseudomonas sp. KDi19를 이용한 액체배지내에서 경유의 생물학적 분해)

  • Yun, Min-Woo;Jeong, Jeong-Hwa;Chang, Soon-Woong;Kong, Sung-Ho;Lee, Jong-Yeol;Kang, Dong-Hyo;Lee, Sang-Seob
    • Journal of Korean Society of Environmental Engineers
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    • v.27 no.12
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    • pp.1285-1291
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    • 2005
  • In this study, we isolated bacteria from petroleum contaminated soil which were near to underground storage tanks(UST). Through the screen test, we selected high efficiency bacterium, KDi19, for biodegradation of diesel. KDi19 was identified as Pseudomonas sp. by 16S rDNA, fatty acid, and morphological physiological characteristics. KDi19 degraded 956.3 mg/L(95.6%) of 1,000 mg/L diesel for 48 hours(incubation condition : temperature; $30^{\circ}C$, cell concentration; 1.0 g/L, pH 7). At low temperature, $20^{\circ}C$, $15^{\circ}C$, $10^{\circ}C$, KDi19 respectively removed 63.9%, 18.5% and 17.0% of 1,000 mg/L diesel for 48 hours(cell concentration 1.0 g/L, pH 7). At low concentration of diesel, 50 mg/L and 100 mg/L, KDi19 degraded 97.9% and 96.2% of diesel for 24 hours(temperature; $30^{\circ}C$, cell concentration: 1.0 g/L, pH 7), respectively.

Detection and Classification of Bearing Flaking Defects by Using Kullback Discrimination Information (KDI)

  • Kim, Tae-Gu;Takabumi Fukuda;Hisaji Shimizu
    • International Journal of Safety
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    • v.1 no.1
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    • pp.28-35
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    • 2002
  • Kullback Discrimination Information (KDI) is one of the pattern recognition methods. KDI defined as a measure of the mutual dissimilarity computed between two time series was studied for detection and classification of bearing flaking on outer-race and inner-races. To model the damages, the bearings in normal condition, outer-race flaking condition and inner-races flaking condition were provided. The vibration sensor was attached by the bearing housing. This produced the total 25 pieces of data each condition, and we chose the standard data and measure of distance between standard and tested data. It is difficult to detect the flaking because similar pulses come out when balls pass the defection point. The detection and classification method for inner and outer races are defected by KDI and nearest neighbor classification rule is proposed and its high performance is also shown.

A Case Study on Establishing the Records Management System in the KDI School (KDI 대학원의 기록관리 체계구축에 관한 사례연구)

  • Chung, Hye-Kyung
    • Journal of Korean Society of Archives and Records Management
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    • v.7 no.2
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    • pp.5-24
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    • 2007
  • This case study aims to describe the principles and methods of records management applied to the systematic management of records in the KDI School of Public Policy and Management, and the process of its practical implementation. It provides more extensive coverage than most existing studies on records management, dealing with all procedures from the theoretical modeling to the records management system building. The School has built the Records Center that can integratively manage its administrative records and archives that have been erratic and unsystematic over the years. As a result, the introduction of records management has become a basis for succeeding the achievements of the KDI School and its history as well as supporting administrative and knowledge resources. As well, it is intended to be a guide for other schools or institutions when building the records management system.

중동 원유시장과 한국 건설수출전망

  • Korea Petroleum Association
    • Korea Petroleum Association Journal
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    • no.11 s.21
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    • pp.76-89
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    • 1982
  • 이 자료는 한국개발연구원(KDI)의 「KDI 분기별경제전망」82년3/4분기호에서 옮긴 것이다. <편집자주>

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Real-time Impact Evaluation of a Capacity-Building Health Project in Lao PDR

  • LEE, KYE WOO;KIM, TAEJONG
    • KDI Journal of Economic Policy
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    • v.37 no.4
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    • pp.75-88
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    • 2015
  • This study presents a real-time impact evaluation of a human capacity-building health project in Laos, financed by a Korean aid agency and executed jointly by Laotian and Korean higher educational agencies. The project aims to improve the health status of Laotians by enhancing practicing doctors' clinical performance capacity, to be attained by advancing academic achievement at the University of Health Sciences (UHS) in Laos. Therefore, this real-time impact evaluation adopted the difference-in-differences regression analysis method, showing that the project improved the academic achievement of the UHS students who were taught by the project fellowship awardees more, compared to the UHS students who were taught by non-fellowship faculty members. It remains to be evaluated whether these UHS students taught by the project fellowship recipients would also perform better clinically in public hospitals in the future.

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Relative Effectiveness of Various Development Finance Flows: A Comparative Study

  • LEE, KYE WOO;HONG, MINJI
    • KDI Journal of Economic Policy
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    • v.40 no.3
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    • pp.91-115
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    • 2018
  • This paper aims to identify the most effective mode of development finance flows for the economic growth of middle-income developing and least developed countries, separately. It also attempts to confirm whether governance has any significant role in the causal relationship between development finance flows and economic growth. Policymakers in each developing country should select the most effective modality of development finance inflows among the different modalities (such as Official Development Assistance (ODA) grants, Official Development Assistance (ODA) loans, FDI, and international personal remittances) and expand it for their economic growth. Dynamic panel regression models were used on 48 least developed countries and 89 middle-income developing countries, respectively, during the Millennium Development Era: 2000-2015. The empirical analysis results show that ODA grants and remittances were most effective in promoting economic growth for least developed countries, while FDI was most effective for middle-income developing countries. These findings were not affected by the status of governance of the individual country.

Impacts of Reforestation on Stabilization of Riverine Water Levels in South Korea

  • JAEHYUN, YOON;SAANG JOON, BAAK;MIN YOUNG, SEO;TAEJONG, KIM
    • KDI Journal of Economic Policy
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    • v.44 no.4
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    • pp.1-24
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    • 2022
  • We investigate how reforestation contributed to stabilization of riverine water levels in South Korea. For the purpose, we estimate an equation capturing dynamic relationships among rainfall, upstream-area tree stock, and downstream water levels in three river systems of Hongcheon, Mangyeong, and Hyeongsan, using daily observations of precipitation and water levels for the period from 1985 to 2005. Simulation based on estimation results shows that increase in the tree stock in a river basin leads to a significantly suppressed peaking in riverine water levels in response to an abrupt and concentrated rain in the upstream area. For instance, an hour-long concentration of 100mm rain results in 0.7m rise in water level if the volume of growing stock is 1 million m3, whereas the rise in water level stays below 0.27m with 5 million m3 in the growing-stock volume.