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Overview of Research Trends in Estimation of Forest Carbon Stocks Based on Remote Sensing and GIS (원격탐사와 GIS 기반의 산림탄소저장량 추정에 관한 주요국 연구동향 개관)

  • Kim, Kyoung-Min;Lee, Jung-Bin;Kim, Eun-Sook;Park, Hyun-Ju;Roh, Young-Hee;Lee, Seung-Ho;Park, Key-Ho;Shin, Hyu-Seok
    • Journal of the Korean Association of Geographic Information Studies
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    • v.14 no.3
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    • pp.236-256
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    • 2011
  • Forest carbon stocks change due to land use change is an important data required by UNFCCC(United Nations framework convention on climate change). Spatially explicit estimation of forest carbon stocks based on IPCC GPG(intergovernmental panel on climate change good practice guidance) tier 3 gives high reliability. But a current estimation which was aggregated from NFI data doesn't have detail forest carbon stocks by polygon or cell. In order to improve an estimation remote sensing and GIS have been used especially in Europe and North America. We divided research trends in main countries into 4 categories such as remote sensing, GIS, geostatistics and environmental modeling considering spatial heterogeneity. The easiest way to apply is combination NFI data with forest type map based on GIS. Considering especially complicated forest structure of Korea, geostatistics is useful to estimate local variation of forest carbon. In addition, fine scale image is good for verification of forest carbon stocks and determination of CDM site. Related domestic researches are still on initial status and forest carbon stocks are mainly estimated using k-nearest neighbor(k-NN). In order to select suitable method for forest in Korea, an applicability of diverse spatial data and algorithm must be considered. Also the comparison between methods is required.

A Case Study - IT Outsourcing of the Korea Development Bank (산업은행: 금융 IT 아웃소싱 - 공동협력으로 안전한 문을 연다)

  • Kang, Ju-Young;Lee, Jae-Kyu
    • Information Systems Review
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    • v.7 no.2
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    • pp.229-255
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    • 2005
  • The Korea Development Bank promoted a total outsourcing for IT operation in 1999 for the first time in the banking industry. The Korea Development Bank became the center of public attention because the most banks were unwilling to take an outsourcing with external sources for the reason of financial operation accidents, securities, and threats of strikes. After the introduction of the total IT outsourcing, the Korea Development Bank has continuously diagnosed the problems of the IT outsourcing and adopted various proper complements for the enhancement of the IT outsourcing. As the result of the enhancement, the IT outsourcing of the Korea Development Bank marched into the joint liability operation period after going through the outsourcing operation period and the co-operation period. The joint liability operation which is the most leading outsourcing system which is adopted by the Korea Development Bank for the first time in the banking industry. Through the joint liability operation, the Korea Development Bank could accept the most up-to-date IT, concentrate internal manpower on the core capability, and secure flexibility of manpower. Also, the bank changed the relationship between the bank and the external sources from the one-sided relationship between a producers and a consumer to the joint liability relationship on which both sides are responsible for the operation, and could integrate the internal capacity with the professional know-how of the external IT outsourcing company. In this paper, we testified the soundness and validity for the worries of banks about the total IT outsourcing with external sources. And, we arranged the advantages and outcomes of the total IT outsourcing with external sources compared to the IT outsourcing with internal sources. Moreover, we expect that we can improve the closed financial IT outsourcing industry structure and raise the world competitive power of domestic IT outsourcing companies by correcting wrong ideas on the IT outsourcing with external sources.

Application of LCA Methodology on Lettuce Cropping Systems in Protected Cultivation (시설재배 상추에 대한 전과정평가 (LCA) 방법론 적용)

  • Ryu, Jong-Hee;Kim, Kye-Hoon
    • Korean Journal of Soil Science and Fertilizer
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    • v.43 no.5
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    • pp.705-715
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    • 2010
  • The adoption of carbon foot print system is being activated mostly in the developed countries as one of the long-term response towards tightened up regulations and standards on carbon emission in the agricultural sector. The Korean Ministry of Environment excluded the primary agricultural products from the carbon foot print system due to lack of LCI (life cycle inventory) database in agriculture. Therefore, the research on and establishment of LCI database in the agriculture for adoption of carbon foot print system is urgent. Development of LCA (life cycle assessment) methodology for application of LCA to agricultural environment in Korea is also very important. Application of LCA methodology to agricultural environment in Korea is an early stage. Therefore, this study was carried out to find out the effect of lettuce cultivation on agricultural environment by establishing LCA methodology. Data collection of agricultural input and output for establishing LCI was carried out by collecting statistical data and documents on income from agro and livestock products prepared by RDA. LCA methodology for agriculture was reviewed by investigating LCA methodology and LCA applications of foreign countries. Results based on 1 kg of lettuce production showed that inputs including N, P, organic fertilizers, compound fertilizers and crop protectants were the main sources of major emission factor during lettuce cropping process. The amount of inputs considering the amount of active ingredients was required to estimate the actual quantity of the inputs used. Major emissions due to agricultural activities were $N_2O$ (emission to air) and ${NO_3}^-$/${PO_4}^-$ (emission to water) from fertilizers, organic compounds from pesticides and air pollutants from fossil fuel combustion in using agricultural machines. The softwares for LCIA (life cycle impact assessment) and LCA used in Korea are 'PASS' and 'TOTAL' which have been developed by the Ministry of Knowledge Economy and the Ministry of Environment. However, the models used for the softwares are the ones developed in foreign countries. In the future, development of models and optimization of factors for characterization, normalization and weighting suitable to Korean agricultural environment need to be done for more precise LCA analysis in the agricultural area.

Development of Multi-residue Analysis and Monitoring of Persistent Organic Pollutants (POPs) - Used Organochlorine Pesticides in Korea (국내에 사용되어 금지된 유기염소계 농약류의 다중분석법과 모니터링)

  • Lim, Sung-Jin;Oh, Young-Tak;Yang, Ji-Yeon;Ro, Jin-Ho;Choi, Geun-Hyoung;Ryu, Song-Hee;Moon, Byeong-Chul;Park, Byung-Jun
    • The Korean Journal of Pesticide Science
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    • v.20 no.4
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    • pp.319-325
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    • 2016
  • This study was conducted to investigate residual organochlorine pesticides in green house soil and oriental melon, green pepper, and lettuce. The majority of them were designated as persistent organic pollutants (POPs) by the international community at the Stockholm Convention on Persistent Organic Pollutant. Extraction and clean-up method were developed using the QuEChERS method for residual organochlorine pesticides (OCPs) in soil and oriental melon, green pepper and lettuce. Recovery of OCPs in greenhouse soil and oriental melon, green pepper, and lettuce ranged from 73.3-110.6%. Limit of detection (LOD) of OCPs in soil and 3 crops were 0.01-0.08 and $0.11-0.17{\mu}g/kg$. The residues of OCPs in oriental melon, green pepper and lettuce greenhouse soil were analyzed by the developed method, and dieldrin, ${\beta}-endosulfan$ and endosulfan sulfate were detected at 1.4-72.5, 0.1-78.7 and $0.0-214.1{\mu}g/kg$, respectively. The detection frequency of 3 compounds in soils were 52 (29.7%), 34 (19.4%) and 57 (32.6%) among 175 samples, respectively. However, these compounds were not detected in all crop samples. The residue level in 3 crops were lower than 1/58.8 of maximum residue level of them. These results showed that the OCPs residue in oriental melon, green pepper, and lettuce greenhouse soil were not as high as crop safety threatening.

Analysis on the actual state and plan for improvement for vocational courses are operated consignment in General high school (일반고등학교 직업과정 위탁 운영의 실태 분석 및 개선 방안)

  • Yoon, Kyoung-Suk;Yi, Sang-Bong
    • 대한공업교육학회지
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    • v.36 no.2
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    • pp.131-150
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    • 2011
  • The purpose of this study vocational courses in general high schools in each city in order to operate efficiently. Provinces operating status and the general high school vocational courses through the regular high school vocational courses siltae analysis to identify operational problems, and that is to derive ways to improve. Operating in the desired direction, the typical high school vocational courses ilbango select students that meet the purpose of operating as one that students admit you need the correct promotion and career guidance and vocational courses ilbango teachers of vocational courses is operating correctly recognize the purpose and students with career guidance and vocational courses so that you can operate effectively at: Provincial Office-wide need to conduct a systematic study. Vocational courses also target students ilbango sosokgyo (wonjeokgyo) to be completed in the course stated in the plan for the school and the need to practice, and professional students ilbango by configuring a separate class is most preferable to operate. If the person is prime target, with each region run by creating a class needs to definitely consider. Entrusted to the agency's key performance improvements in order to improve the employment rate in the direction of promotional materials for the students selected to take advantage of college enrollment than the employment data for the students and their parents ilbango vocational courses for the purpose and intent is necessary to provide accurate information In addition, the employment rate is relatively low industrial (information) to install the school department employment, and employment representatives (industry-academia co-coordinator), and by placing career paths and industries to ensure the needs of industry, including working conditions and students who wish adjusting to the role, and industrial college (2 years), industrial (information) through the school's agreement to the aggressive promotional schemes seonchwieop hujinhak. Getting the need to encourage. Vocational courses ilbango in the new and the abolition, rather than the case of some popular course when you are away from work and there, so if the course-changing industry, new or repealed to reflect the demands of social work and careful review of how to connect carefully to decide by. Commissioned a systematic quality management in education, in terms of industry (information) schools and public vocational training institutions or private vocational school is better than school. However, 16 cities across the country. Also only five of the major cities around the school has industry information. Ilbango vocational courses at the expected continued demand. Degrees, the operation in terms of comparative advantage in many ways the school's new industry information is necessary to consider.

Effective correlation between coagulation efficiency and the sludge settling characteristic (슬러지 응집효율이 침강특성에 미치는 상관관계에 대한 연구)

  • Han, Gee-Bong;Yoon, Ji-Hyun
    • Journal of the Korea Organic Resources Recycling Association
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    • v.14 no.1
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    • pp.151-159
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    • 2006
  • In these days, the importance of sludge treatment is emerging due to the London Convention, so this study was conducted to propose the alternatives for the improved sludge treatment on the organic wastewater and sewage sludge with JAR test and settling column equipped with stirrer. The minimum coagulant dosage to earn the optimum sludge settling efficiency resulted from 200mg/l and each critical sludge settling interface showed no distinct difference when PAC was dosed over 200mg/l. Accordingly, Clarification Rate(CR) with 200mg/l dosage was calculated to CR=(Ho-Ht) / Ho=1-0.4=0.6 because the critical sludge settling height stopped at 0.4. The settling velocity of sludge interface was decreased with the increase of MLSS concentration but rather increased with MLSS concentration over 1,000mg/l. This resulted from positive effect of interacted coagulation for floc formation by transfer to the zone of compressed settling when MLSS concentration increased over 1,000mg/l. The settling velocity of sludge interface showed $28.66{\times}10^{-3}/min$ for average settling velocity of sewage sludge which is 6.7 times higher than $4.25{\times}10^{-3}/min$ for average settling velocity of organic wastewater sludge. The increasing rate of CR for organic wastewater activated sludge was higher than that of settling velocity under 200mg/l of PAC dosage but settling velocity was higher than CR over 200mg/l of PAC dosage. However, in case of sewage sludge, the differential rate of CR was low when PAC dosage was increased but the settling velocity was suddenly increased with over 200mg/l dosage. Therefore coagulation effect was more efficient to MLSS settling velocity rather than SS removal effect in the supernatant.

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Eco-friendly remediation and reuse for coastal dredged materials using a bioaugmentation technology (생물증강법을 이용한 오염해양준설토의 환경친화적 정화 및 재활용)

  • Kim, In-Soo;Ha, Shin-Young;Koh, Sung-Cheol
    • Korean Journal of Microbiology
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    • v.51 no.4
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    • pp.374-381
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    • 2015
  • Occurrences of coastal dredged materials are ever increasing due to port construction, navigational course maintenance and dredging of polluted coastal sediments. Ocean dumping of the coastal dredged materials has become virtually prohibited as London Treaty will be enacted as of the year 2012. It will be necessary to treat and recycle the dredged materials that may carry organic pollutants and heavy metals in a reasonable and effective process: collection of the dredged materials, liquid and solid separation, and treatment of organic compounds and heavy metals. In this study we have developed a continuous bioreactor system that can treat a mixture of silt and particulate organic matter using a microbial consortium (BM-S-1). The steady-state operation conditions were: pH (7.4-7.5), temperature ($16^{\circ}C$), DO (7.5-7.9), and salt concentration (3.4-3.7%). The treatment efficiencies of SCOD, T-N and T-P of the mixture were 95-96%, 92-99%, and 79-97%. The system was also effective in removal of heavy metals such as Zn, Ni, and Cr. Levels of MLSS during three months operation period were 11,000-19,000 mg/L. Interestingly, there was little sludge generated during this period of operation. The augmented microbial consortium seemed to be quite active in the removal of the organic component (30%) present in the dredged material in association with indigenous bacteria. The dominant phyla in the treatment processes were Proteobacteria and Bacteroidetes while dominant genii were Marinobacterium, Flaviramulus, Formosa, Alteromonadaceae_uc, Flavobacteriaceae_uc. These results will contribute to a development of a successful bioremediation technology for various coastal and river sediments with a high content of organic matter, inorganic nutrients and heavy metals, leading to a successful reuse of the polluted dredged sediments.

A Study on the legal position of the carrier under the right of stoppage in transit of CISG (국제물품매매계약(CISG)의 운송유보권 하에서 운송인의 법적지위에 관한 연구)

  • Lim, Jaewook
    • International Commerce and Information Review
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    • v.16 no.3
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    • pp.159-182
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    • 2014
  • CISG Article 71 (1) states that a party may suspend the performance of his obligations if, after the conclusion of the contract, it becomes apparent that the other party will net perform a substantial part of his obligations as a result of a serious deficiency in his ability to perform or in his creditworthiness or his conduct in preparing to perform or in perfoming the contract. CISG Article 71 (2) states a 'right of stoppage in transit' that if the seller has already dispatched the goods before the grounds described in the preceding paragraph become evident, he may prevent the handing over of the goods to the buyer even though the buyer holds a document which entitles him to obtain them. The present paragraph relates only to the rights in the goods as between the buyer and the seller. Under the right of stoppage in transit, the carrier copes with risks that the seller may claim damages arose from the handing over the goods, if he hand over the goods to the buyer and that the buyer may claim damages, if he deny handing over the goods to the buyer who has the document which entitles him to obtain the goods. Therefore the legal position of the carrier may become weak. This paper purpose to point out the legal weakness of the carrier under the right of stoppage in transit and to provide the proper legal act of the carrier and possible practice related to various characters of the contract of sale of the goods. Although there is the opinion it prevent from handing over the goods to the buyer actually under the interpretation that the buyer should take claim damages to the seller, if the goods are handed over to the buyer under the right of stoppage in transit, it is not appropriate because the opinion may disable the right of stoppage in transit. The right of stoppage in transit could be carried out under any payment conditions except letter of credit and under any mode of transportation except the cases that carrier is the buyer himself or the agent of the buyer. It could be executed regardless the forms of the transport document.

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Recognition and Enforcement of Foreign Arbitral Awards in Korea (한국에서의 외국중재판정의 승인과 집행)

  • Kim, Sang-Ho
    • Journal of Arbitration Studies
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    • v.17 no.3
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    • pp.3-30
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    • 2007
  • The New York Convention(formally called "United Nations Convention on the Recognition and Enforcement of Foreign Arbitral Awards") done in New York on June 10, 1958 has been adhered to by more than 140 States at the time of this writing, including almost all important trading nations from the Capitalist and Socialist World as well as many developing countries. The Convention can be considered as the most important Convention in the field of arbitration and as the cornerstone of current international commercial arbitration. Korea has acceded to the New York Convention since 1973. When acceding to the Convention, Korea declared that it will apply the Convention to the recognition and enforcement of awards made only in the territory of another Contracting State on the basis of reciprocity. Also, Korea declared that it will apply the Convention only to differences arising out of legal relationships, whether contractual or not, which are considered as commercial under the national law of Korea. The provisions relating to the enforcement of arbitral awards falling under the New York Convention begin at Article III. The Article III contains the general obligation for the Contracting States to recognize Convention awards as binding and to enforce them in accordance with their rules of procedure. The Convention requires a minimum of conditions to be fulfilled by the party seeking enforcement. According to Article IV(1), that party has only to supply (1) the duly authenticated original award or a duly certified copy thereof, and (2) the original arbitration agreement or a duly certified copy thereof. In fulfilling these conditions, the party seeking enforcement produces prima facie evidence entitling it to obtain enforcement of the award. It is then up to the other party to prove that enforcement should not be granted on the basis of the grounds for refusal of enforcement enumerated in the subsequent Article V(1). Grounds for refusal of enforcement are stipulated in Article V is divided into two parts. Firstly, listed in the first Para. of Article V are the grounds for refusal of enforcement which are to be asserted and proven by the respondent. Secondly, listed in Para. 2 of Article V, are the grounds on which a court may refuse enforcement on its own motion. These grounds are non-arbitrability of the subject matter and violation of the public policy of the enforcement country. The three main features of the grounds for refusal of enforcement of an award under Article V, which are almost unanimously affirmed by the courts, are the following. Firstly, The grounds for refusal of enforcement mentioned in Article V are exhaustive. No other grounds can be invoked. Secondly, and this feature follows from the first one, the court before which enforcement of the award is sought may not review the merits of the award because a mistake in fact or law by the arbitrators is not included in the list of grounds for refusal of enforcement set forth in Article V. Thirdly, the party against whom enforcement is sought has the burden of proving the existence of one or more of the grounds for refusal of enforcement. The grounds for refusal of enforcement by a court on its own motion, listed in the second Para. of Article V, are non-arbitrability of the subject matter and public policy of the enforcement country. From the court decisions reported so far at home and abroad, it appears that courts accept a violation of public policy in extreme cases only, and frequently justify their decision by distinguishing between domestic and international public policy. The Dec. 31, 1999 amendment to the Arbitration Act of Korea admits the basis for enforcement of foreign arbitral awards rendered under the New York Convention. In Korea, a holder of a foreign arbitral award is obliged to request from the court a judgment ordering enforcement of the award.

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The Aspects of Small Group Decision-making Process based on Reading News Reports: Focused on Climate Change related Socio-scientific Issues Activity (신문기사 읽기를 활용한 소집단 의사결정 과정 양상 -기후변화 관련 사회적 논쟁 활동을 중심으로-)

  • Kim, Jong-Uk;Gwak, Je-Yeon;Kwon, Ji-Yeon;Ha, Yoon-Hee;Lee, Jeong-A;Kim, Chan-Jong;Choe, Seung-Urn
    • Journal of The Korean Association For Science Education
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    • v.38 no.2
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    • pp.203-217
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    • 2018
  • The research objective of this study is to analyze the aspects of small group decision-making process based on reading news reports in the context of the socio-scientific issues (SSI) activity related to climate change. Twenty-two high school students from Gyeonggi Province, South Korea, were asked to read two news reports on the UN climate change conferences and take a stance on joining the Paris Agreement both as an individual and as a small group. The news reports were analyzed in terms of genre, discourse, and style adapting the critical discourse analysis (CDA) and the decision-making processes of the small groups were examined on recognizing a problem and evaluating alternatives and decisions. The results from analyzing the news reports denoted that the Paris agreement is not only related to finding ideal solutions to climate change, but rather, connected to political or economic interests and power relationship. In the stage of recognizing a problem, meanwhile, different frames which students recognize the Paris agreement and discourses in the foreground of the news reports were the critical causes in terms of identifying the problem. In the stage of evaluating alternatives and decisions, the equity and fairness were the criteria for the small group discussions. This study implies the necessity of the scientific literacy instruction to develop the ability to critical reading in the context of the SSI.