• 상하수도학회지
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• 제27권5호
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• pp.547-554
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• 2013

Chlorine has strong oxidizing power, also it is many advantages over other disinfectants such as the residual characteristic and economic feasibility. However, chlorine also has disadvantages such as creating disinfection by-products of chlorine as THMs. In particular, the most deadly disadvantage of chlorine is that it is extremely poisonous toxins about all alive lives. Disinfection with electrolysis water can be a very useful way Because you do not have to worry about chlorine's dangerous. In this study, we evaluated the potential as a disinfectant, across the evaluating disinfection effect and generating characteristic of by-products. The electrolyzed water could be obtained removal efficiencies of over 99.9 % the coliform by operating condition such as residence time, current density (voltage), the electrode gap. The residual chlorine be generated 10,000 mg/L in current density $1.0A/dm^2$ and residence time of 10 minutes. The residual chlorine concentration was possible to maintain a stable. The by-products generated by high concentration residual chlorine in the reactor such as trihalomethanes, haloaceticacid, chloralhydrate, haloacetonitrile were detected in less than a water quality standards. At the concentration of less than residual chlorine of 1 ppm, the chlorine disinfection by-products be generated most below the detection limit.

• International journal of advanced smart convergence
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• 제10권2호
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• pp.158-167
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• 2021

Fishery industry is an important part of agricultural industry in coastal countries. The purpose of this study is to use the theory of industrial competitiveness for reference, use Analytic Hierarchy Process (AHP) and Delphi method to establish the evaluation index system, and analyze the fishery industry competitiveness of 11 coastal provinces in China. This study data came from China Fishery Statistical Yearbook 2020. The results show that Shandong Province is the most competitive province in fishery industry among the coastal provinces. The inter-provincial differences are great. Not only the resource endowment is the factor that affects the fishery industry competitiveness, but also the long-term profitability is too. The proportion of recreational fishery in the fishery economic output value has become one of the main indicators to measure the competitiveness of the fishery industry. The findings of this study suggest that all regions should adopt measures in accordance with local conditions, promote the integrated development of the fishery industry, enhance the added value of fishery products and enhance the competitiveness of fishery industry. The disadvantage of this study is that the fishery industry competitiveness of China's coastal provinces is only compared and analyzed. The future direction is to carry out a comparative study on the international competitiveness of fishery with other east Asian countries.

• 한국컴퓨터정보학회논문지
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• 제28권12호
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• pp.9-22
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• 2023

본 논문에서는 인공지능의 무한한 발전 가능성을 유지하면서 공정성과 윤리적 책임을 유지하는 AI 규제에 대한 균형 잡힌 방안을 제시합니다. AI 시스템이 일상생활에 점점 더 통합됨에 따라, 특정 인구 집단에 대한 편견과 불이익을 방지하기 위한 규제 개발이 필수적입니다. 본 논문에서는 책임 있는 개발과 적용을 보장하기 위해 AI 애플리케이션의 규제 프레임워크와 사례 분석 연구를 진행합니다. 본 논문을 통하여 AI 규제에 대한 지속적인 논의를 이끌어내며, 혁신과 공정성 사이의 균형을 맞추는 정책을 수립을 제안합니다.

• 유통과학연구
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• 제11권8호
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• pp.31-37
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• 2013

Purpose - This study aims to strengthen the economic cooperation between Korea and Japan by studying the pattern of trade between them and identifying drawbacks. Thus, it aims to enable trade expansion by analyzing the factors that affect trade and identifying ways to improve them. If economic cooperation is improved, transport and communication costs, as well as the transaction cost of economic exchanges, can be minimized. Research design, data, methodology - The trade intensity index developed by the Japanese economist Yamazawa under his trade intensity theory was used to analyze the trade decision factor of Korea and Japan. Trade structure and decision factors were analyzed for the target period of 2000 to 2012, and the period ranging from 2000 to 2005 was compared with the period ranging from 2005 to 2012. This paper is an analysis of the resultant time series. The data were collected from Korea Traders Association, Korea Customs Office, and UN Comtrade (2000, 2005, 2012) and whole table indexes were calculated by the author. Trade related index was used to analyze the comparative advantage based on time-series analysis statistics data (2000. 2005, 2012) through an analysis of the trade intensity index (TII), revealed comparative advantage index (RCA), and trade specialization index (TSI). Results - The trade intensity index of the industries of Japan and Korea is 1.814 in 2000. The export ratio of Japan against China was slightly higher at 2.128. TII is indicated to be 1.600 in both 2005 and 2012, which means export ratio of Japan against China is considerably maintained in 2005; however, export ratio of Japan against China is diminishing gradually as its index is 1.600 in 2012. Second, as per the trade specialization index of the ship industry in Japan and China, TSI is indicated to be -0.818 in 2000, -0.308 in 2005, and -0.847 in 2012. Generally, it is still closer to -1 and especially, we can see it is more closer to -1 in 2012. Third, as per the revealed comparative advantage index of the ship industry in Japan and China, the RCA index in 2012 is 0.007, which is quite far from 1 as compared to the value in 2000 and 2005. Hence, the Japanese ship industry has a significant comparative disadvantage against the Chinese ship industry. Conclusions - Both countries invest most of their capital in the shipping industry. It is the shipping industry that receives the most capital investment in the two countries is invested and governmental policy funds are needed. As both countries have large shipping industries, this research project is very valuable. Japan and China are compared because they are Korea's neighbors. Also, Korea is strategically located in Northeast Asia and has a history of foreign intrusion from several countries. Therefore, the purpose of this research study is to understand the trade structures of both countries and intensify the economic cooperation between Japan and China.

• 유통과학연구
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• 제12권2호
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• pp.105-112
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• 2014

Purpose - This research undertakes to understand the trade structures of both China and Japan to strengthen Sino-Japan economic cooperation and examines impediments to trade between the 2 countries to analyze causes which affect trade and to examine improvements in these areas to find out ways of trade expansion. Through this survey of a defined period of time, we can identify the structural factors of trade dependence in the relationship between China and Japan. Research design, data, methodology - The data were collected from Korea Traders Association, Korea Customs Office and UN Comtrade, from which whole table indexes are calculated by author. This research methodology uses trade related indexes to focus on analyzing comparative advantages based on time-series analysis statistics data (2000~2012), by using the analysis index of Trade Intensity Index (TII), Revealed Comparative Advantage Index (RCA) and Trade Specialization Index (TSI). Results - The export ratio for China against Japan was a little higher in 2000 at 2.867 and the export ratio for China against Japan was sustained in 2005. However, it diminished gradually and reached 1.263 in 2012. During the whole period of 2000~2012, the indexes were maintained without any significant change. However, they are still moving closer to -1. Especially, in 2012 it is the closest it has been to -1. Therefore, Japan has a comparative advantage toward export specialization. On the other hand, China has a comparative advantage toward import specialization. For the whole research period, all indexes were much smaller than 1, which means that China has comprehensively had a comparative disadvantage against Japan for the past 10 years when compared to other industries, even though it had improved in 2000. Conclusions - The summary of conclusions based on empirical analysis research are as follows: First, per the Trade Intensity Index of industries between the 2 countries, we can conclude that export ratio index is 2.867, based on the formula, in 2000, which means the export ratio of China against Japan is a little bit higher. Furthermore, the ratios of 2.259 and 1.263 are indicated in 2005 and 2012 respectively which mean the export ratio of China against Japan was maintained in 2005 but was diminishing gradually as the index is 1.263 in 2012. Second, per the Trade Specialization Index of the shipping industry between China and Japan, -0.379 is indicated in 2000, -0.368 in 2005 and -0.568 in 2012. Looking at the whole period of 2000~2012, the indexes were maintained without any significant change. However, they are still moving closer to -1. Especially, in 2012 it is the closest it has been to -1. Third, per the Revealed Comparative Advantage Index of the automobile industry between China and Japan, the RCA indexes in 2005 and 2012 are 0.246 and 0.306 respectively which are still far from 1 even though the index is improved compared to 2000's value of 0.0001. Therefore, the Chinese automobile industry is very much at a comparative disadvantage to that of the Japanese automobile industry.

• 유통과학연구
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• 제12권6호
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• pp.21-29
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• 2014

Purpose - This research undertakes to understand the competitiveness of the steel distribution industry of both Korea and China to strengthen Korea-Sino economic cooperation, examines impediments to trade between the two countries to analyze causes which affect trade, and examines improvements in these areas to identify means of trade expansion. Through this survey of a defined period, we can identify the structural factors of trade dependence in the relationship between Korea and China. Research design, data, and methodology - The data were collected from the Korea Traders Association, the Korea Customs Office, and UN Comtrade, from which whole table indexes are calculated. The research methodology uses trade-related indexes to focus on analyzing comparative advantages based on time-series analysis statistics data (2000-2012) by using the analysis index of trade intensity index (TII), the revealed comparative advantage index (RCA), and the trade specialization index (TSI). Results - The export ratio for Korea to China was slightly higher in 2000 at 2.867, and the export ratio for Korea to China was sustained in 2005. However, it diminished gradually, reaching 1.263 in 2012. During the period 2000-2012, the indexes were maintained without any significant change. However, they still remain close to -1. In particular, in 2012 it is the closest it has ever been to -1. Therefore, China has a comparative advantage in export specialization. On the other hand, Korea has a comparative advantage in import specialization. For the research period, all indexes were much lower than 1, which means that Korea has consistently had a comparative disadvantage against China for the past 10 years when compared to other industries, even though it experienced improvement in 2000. Conclusions - The summary of conclusions based on empirical analysis research are as follows: First, per the trade intensity index of industries between the two countries, we conclude that the export ratio index in 2000 is 2.867, which means the export ratio of Korea to China is slightly higher. Furthermore, the ratios of 2.259 and 1.263 held in 2005 and 2012, respectively, meaning that the export ratio of Korea to China was maintained in 2005, but was diminishing gradually as the index in 2012 was 1.263. Second, per the trade specialization index of the steel distribution industry between Korea and China, the value was -0.379 in 2000, -0.368 in 2005 and -0.568 in 2012. Looking at the whole period of 2000-2012, the indexes remained without any significant change. However, they are still moving closer to -1. In particular, in 2012 it is the closest it has ever been to -1. Third, regarding the revealed comparative advantage index of the steel distribution industry between Korea and China, the RCA indexes in 2005 and 2012 are 0.246 and 0.306, respectively, which are still far from 1, even though the index has improved compared to the 2000's value of 0.0001. Therefore, the Korean steel distribution industry is at a significant comparative disadvantage to that of the Chinese steel distribution industry.

• 한국문헌정보학회지
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• 제38권3호
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• pp.177-199
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• 2004

정보기술과 인터넷은 사람들의 정보접근과 의사소통을 보다 자유롭고 빠르게 만드는 삶의 보편적인 도구가 되었다. 경제적 기술적${\cdot}$육체적 장애로 인해 새로운 정보에 대한 접근이 차단되거나 제한된 사람들은 빠른 정보사회에서는 치명적인 불이익을 받게 됨은 분명하다. 정보접근권이 새로운 기본권으로 인식되고 있는 이 때에 모든 사람에게 접근이 허용된 공공도서관에서야말로 시각장애인을 위한 도서관서비스프로그램이 개발되어야 할 것이다. 본 연구는 대전 한밭도서관 시각장애인실에서 시각장애인서비스업무 통계를 분석하고 서비스현장 관찰과 이용자 개별면담을 통해 이용행태와 이용자 요구사항을 조사하였고 담당사서와의 면담을 통해 제공자 관점을 청취하였다. 이러한 조사를 통해 수집된 데이터와 관점을 분석한 후 몇 가지 개선방안을 제안하였으며, 일선 시각장애인실, 국가단위 점자도서관, 복지기관, 정보부처간의 협력네트워크 구축과 역할분담이 가장 시급한 사안임을 확인하였다.

• 노동경제논집
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• 제34권2호
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• pp.79-107
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• 2011

본 연구는 우리나라의 청년노동시장에서 영어점수가 (1) 선별효과, (2) 신호효과 및 (3) 임금효과에 미치는 영향에 관하여 분석했다. 분석 결과는 다음과 같다. 첫째, 영어점수는 선별 신호과정에서 선별도구 및 신호기재로 이용되고 있는 것으로 나타났다. 둘째, 일정 수준 이하의 영어점수를 보유한 구직자는 선별 신호과정에서 불이익을 받는 것으로 나타났다. 마지막으로 능력편의를 통제한 도구변수법을 이용하여도 영어점수의 임금프리미엄이 존재하는 것으로 나타났다.

• 토지주택연구
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• 제7권2호
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• pp.121-129
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• 2016

이 연구는 도시 내의 특정 지역으로의 사회적인 불리의 집중에 의한 지역 효과와 관련된 서구의 선행연구를 중심으로 이론적인 검토를 수행하였다. 이에 기반하여 지역의 실태조사를 분석하여 '사회적 불리지역'의 실태와 거주자의 필요를 동정(同定)함과 더불어 이 결과에 근거하여 보다 포섭적인 지역재생을 위한 과제를 모색해 보았다. 조사에서는 지역의 고령화와 저소득층의 지역적인 집중이 심화되어 지구내의 커뮤니티 믹스에 편중 현상이 나타나고 있음을 확인할 수 있었다. 현재 가장 어려움을 겪고 있는 것으로는 경제적인 면과 건강면에서의 불안을 들 수 있으며, 향후 필요로 되는 복지서비스로서는 주택관련 상담과 건강, 가사서비스 등, 주민의 고령화에 수반하여 필요로 요구되는 내용이 대부분을 차지하고 있다. 지역의 고령화와 저소득층의 집중이 심화되고 있으며, 이에 수반하여 지역이 다양한 과제를 경험하고 있음을 확인할 수 있었다. 동화대책 관련법이 효력을 상실한 현재, 이들 지역의 과제와 필요에 대한 대응으로, 공적인 지원에 더하여 지역 주체의 대응, 즉 지역 주체에 의한 새로운 거버넌스 모델을 수립해갈 필요가 있다.

• 수산해양교육연구
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• 제18권3호
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• pp.244-260
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• 2006

The main objective of this study aims at analyzing the national roles of fisheries in the global economy from the constitutional view point. Globalization provides general firms and businessmen with great opportunities that allow them to be able to plan and operate their business strategies beyond the national boundaries. WTO and FTA negotiations must be important facilitators of such globalization. However, Korean primary industries like fisheries under comparative disadvantage have a high probability that there may have to be the trade-offs between the primary and the industrial sector to maximize national benefits in the process of bilateral and/or multilateral international trade deals. Since, moreover, fishermen face strong binding constraints under which they hardly carry out fishing operations standing aloof from national boarders, they have to manage fishing businesses within their own national territory, to maintain and develop fisheries culture, and to explore their own destiny for themselves. Because of such reasons, the constitution imposes upon the State the duty to support and develop fisheries and fishing villages. Considering its article and spirit associated with fisheries(i.e. article 123), it seems unnecessary at this point in time that Korean society makes debates over national consensus for supporting fisheries. The reason is because the explicit provisions of the constitution do not allow their arbitrary interpretation depending upon interests or policy situations. However, where national support to the particular sector could not meet the expected social value system, there would be a great deal of chance to invite serious societal debates over such national commitment to the fisheries. Therefore, whether using it efficiently and realizing the socially expected policy goals must be a responsibility of both fisheries administration and fishing industries.