• Title/Summary/Keyword: 공동자원

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A Ground Penetrating Radar Detection of Buried Cavities and Pipes and Development of an Image Processing Program (지반 공동 및 매립관의 지반 투과 레이더 탐사 및 이미지 처리 프로그램 개발)

  • Lee, Hyun-Ho
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.5 no.2
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    • pp.177-184
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    • 2017
  • Many ground subsidence accidents have happened in Korea. The accident was caused by the subsidence and leakage of the deteriorated sewage pipe. This study aims to establish the empirical data of the ground penetration radar(GPR) detection for ground subsidence. A test bed was also manufactured for the same purpose. The GPR detection variables are embedment depth and horizontal distance of embedded cast iron pipe and expanded polystyrene(EPS). From the detection results, the EPS embedded by a depth of 1.5m was difficult for detection. The EPS closely embedded to the cast iron pipe within a 0.5m distance had a very strong cast iron pipe signal. Therefore, the detection was impossible. This study developed an image processing program, called the GPR image processing program(GPRiPP), to process the GPR detection results. Its major function is the gain function, which amplifies the wiggle wave signal. Compared to the existing programs, the GPRiPP is capable of showing a similar image processing performance.

GIS for Subsidence Analysis by Considering Surface Condition (지표면의 조건을 고려한 지반침하 분석용 GIS)

  • 권광수;이준용;박형동
    • Economic and Environmental Geology
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    • v.34 no.6
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    • pp.595-600
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    • 2001
  • Recently, interests in subsidence hazard have been increased due to the underground construction such as subway construction and managements of abandoned mines. GIS analysis of subsidence hazard has a lot of advantages in handling of spatial data and managing database. For better result of GIS analysis, there are some necessities of modifying previous subsidence theory and model. To take surface profile into account allows the application of complicated topology. Furthermore. for 3-dimensional analysis. two subsidence profile curves that are perpendicular to each other should be considered simultaneously. Through these modifications, the model for subsidence analysis using GIS can be established. With ideal case of cavities and other conditions, GIS analysis was accomplished and meaningful results were produced. More realistic properties of cavity. soil layers, groundwater condition and topology will enable GIS analysis method to produce more reliable result and to widen the area of applications.

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A catchment management experiences of the Evian natural mineral water (NMW) source site (에비앙 천연 광천수 수원의 유역 관리 사례)

  • Chung, Il-Moon;Lachassagne, Patrick
    • Journal of Korea Water Resources Association
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    • v.53 no.spc1
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    • pp.827-832
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    • 2020
  • The catchment management experiences of the Evian natural mineral water (NMW) bottling company were reviewed. Evian is among the leading brands of bottled NMW in France, exporting worldwide and becoming a role model for companies in many countries due to its long-term experiences in sustainably managing NMW source areas. Experiences of bottled water companies in France show that they are incessantly moving forward with proactive and advanced ideas to meet environmental challenges. For business sustainability, companies are dedicated to improving their environmental performance through effective and planned resource management. Evian has been working with the local community in a spirit of co-ownership to invent and preserve the water resource and fulfill its ambition of sustainable industrial functioning. The partnership aims to balance the protection of the NMW resource and sustainable agricultural development within the catchment.

The Comparison of Apartment Management System Between Korea and Japan (한국과 일본의 공동주택 관리제도 비교)

  • Kang, Hye-Kyoung
    • Journal of Family Resource Management and Policy Review
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    • v.10 no.3
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    • pp.45-62
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    • 2006
  • This research is carried out to inspect the Apartment Management System of Japan, to examine the similarities and differences between the Korean Apartment Management System and the Japanese Apartment Management System. First, as the basis law of apartment management, there exists the Building Unit Ownership Act, the Promotion Law fur Adequate Mansion Management of Japan, the Housing Law, Housing Execution Law and Rule of Korea. Second, the Association of Apartment Owners, an organization of owners of apartments in Japan and the Commission of the Representatives of the Occupants in Korea become the subject of maintenance. The Japan structure is made of the Assembly, the Director and the President. The Korean structure is made of Regular and Temporary Conferences and elected Officers(1 president, at least 2 directors and at least 1 inspector). The Commission of the Representatives of the Occupants and the Organization of Owners of Apartments make bylaws and diverse maintenance rules. Third, the foremost reason why the Korean structure of maintenance of apartments is less efficient than Japan is because of the small number of people dispatched to the living-environment maintenance team and their short terms. It is necessary to grow professionals related to this sector and to have enough public servants that specialize in this. Fourth, although it is compulsory to make long term plans for maintenance based on the Housing Law, because the reserve fund is decided by the maintenance rule(with no compulsory standards of reservation) of each apartment, it is difficult to reserve an adequate amount of reserve fund. So as in the example of the state of Hawaii in America, based on long term plans for maintenance, an execution rule of the Housing Law should be made which enforces to reserve at least 50 percent of future maintenance expenses.

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Transformation of 'Ilmibyeo' using pCAMBIA 1300 and Microstructural Investigation of Leaves (pCAMBIA 1300 벡터를 이용한 일미벼의 형질전환 및 잎의 전자현미경적 관찰)

  • Guo, Jia;Seong, Eun-Soo;Kim, Young-Hwa;Jo, Hye-Jeong;Cho, Joon-Hyeong;Wang, Myeong-Hyeon
    • Korean Journal of Plant Resources
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    • v.20 no.5
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    • pp.437-441
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    • 2007
  • The argE gene of E.coli was introduced into #Ilmibyeo# cultivar of rice by Agrobacterium tumefaciens and a large number of transgenic plants were produced. Embryogenic calli were co-cultivated with A. tumefaciens strain AGL1 carrying the plasmid pCAMBIA1300 containing hygromycin resistance(HygR). Transgenic plants showing in vitro resistance to 50mg/L hygromycin were obtained using a selection procedure. Stable integration of argE and HPT genes into chromosomal DNA was proven by southern blot analysis and PCR analysis of genomic isolated from $T_0$ progenies. The fragments of 650 bp(HPT) were detected in transgenic rice lines. The 230 bp(argE) fragments were showed in agarose gel, and detected fragments were matched with size of argE specific primer. The microscopic feature of leaf on scanning electron microscope(SEM) revealed differences between clear and chalky in shape and arrangement of stoma but did not discriminate.

A Study on Gathering & Connecting Online Reference Resources for Improving the Quality of Online Knowledge Service (온라인지식정보서비스 품질 향상을 위한 온라인지식정보원 확보 및 연계전략에 관한 연구)

  • Noh, Young-Hee
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.20 no.2
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    • pp.17-30
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    • 2009
  • This study is to improve the quality of online reference service which is serviced in the world. For this it suggests the strategic methods for collecting and connecting of internet information resources. It makes information service circumstance for professional librarians to retrieve and service. To achieve the purpose, this study have drawn implications by analysing the theoretical discussions and the cases of online reference resources system. This study suggests some strategies as follows; 1) Collaborative constructing and using of online reference resources, 2) Developing classification scheme and subdividing the subjects of it, 3) Developing the standard format of the data as like metadata, 4) Developing the guidelines to select the proper resources from many internet information resources, 5) Subdividing the 'knowledge DB' by subjects, 6) Connecting as much as possible the DBs as like the National DB and open access resources.

The Effect of Logistics Company Strategies and Logistics Cooperation on Business Performance (물류기업의 전략과 물류공동화가 경영성과에 미치는 영향)

  • Yang-Il Cho
    • Korea Trade Review
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    • v.48 no.4
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    • pp.263-283
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    • 2023
  • Companies must strengthen core competencies by concentrating resources to secure a competitive edge and operate efficient processes from a company-wide perspective. To this end, it is seeking to concentrate its capabilities and reduce costs by pooling non-essential tasks or facilities that require a lot of time and capital at a strategic level. Therefore, logistics companies should actively utilize logistics coorperate system in order to maximize the use of logistics resources according to the limitations of human resources, physical resources, and time. This study is an empirical analysis of the strategy of logistics companies and the impact of logistics coorperate on corporate performance, and a survey and analysis was conducted on domestic logistics companies. The results of the empirical analysis showed that the cost·relationship·information-oriented strategy of logistics has a positive(+) effect on the financial·operation·strategic performance indicators of companies through logistics coorperate. The results derived from this paper will be used as an important determining factor in establishing a logistics strategy and logistics coorperate to improve the performance of logistics companies and logistics service companies.

Review of the Current Policy Related to Exploration and Development of Mineral Resources in China (중국의 광물자원 탐사개발 관련 최신 정책 고찰)

  • Kim, Seong-Yong;Bae, Jun-Hee;Lee, Jae-Wook;Heo, Chul-Ho
    • Economic and Environmental Geology
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    • v.49 no.3
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    • pp.201-212
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    • 2016
  • Due to growing problems securing stable mineral and energy resources with international political and economic changes, China has dedicated itself to strategies and policies to enhance its stable mineral and energy resources security. China has established a rare earth elements(REE) industry policy after the abolition of the REE exports quota system. China's six large REE companies have also been integrated into REE mining, smelting and refining companies. Efforts have been increased to enhance China's energy security through unconventional oil and gas exploration and development investment, as well as effort in R&D. The country will focus on technology development and exploration to promote commercial production of unconventional oil and gas based on countries with shale gas. China is making long-term contracts and joint ventures to ensure the acquisition of reliable mineral and energy resources from abroad. Government of China has proposed a range of initiatives, such as the integration of resources development strategies and environmental development strategies, internationalization of resource management, supply diversification and advancement, strengthening industry linking strategy, grouping and diversification strategy.

An Empirical Analysis on the Determinants of Syndicated Investment of Korean Venture Capital (한국 벤처캐피탈의 공동투자 요인 실증분석)

  • Park, Youngjin;Jung, Taehyun
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.12 no.6
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    • pp.65-77
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    • 2017
  • The syndicated investment strategy of venture capital has merits such as reductionof investment risk, efficient management of investment resources, and information asymmetry mitigation. This study analyzes the investment strategy and network of venture capital by collecting and analyzing investment information of Korean venture capital on Korean start-ups for three years from 2014 to 2016. We could not find statistically significant association with the choice of syndicated investment of the stage of start-ups, the venture capital expertise (investment concentration), internal competence (number of workforce and professional manpower), and the breadth of investment network. As a result of this study, the factors that determine venture capital 's syndicated investment in Korea are only the financial factors such as the size of the investment amount and the size of the fund besides the business field of the invested company. The results suggest that the majority of venture capital firms in Korea may not customize their investment strategies in terms of their expertise or inherent business risks of invested companies.

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The Ethnicized Stigma against Women Escaped from North Korea and Their Community Building and Coping Strategies toward it in Contemporary South Korea (탈북여성들에 대한 남한 사회의 '종족화된 낙인(ethnicized stigma)'과 탈북여성들의 공동체 형성 및 활동)

  • Sung, JungHyun
    • Korean Journal of Family Social Work
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    • no.53
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    • pp.79-115
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    • 2016
  • The purpose of this study is to understand the women's experiences of negative perception, discrimination and 'ethnicized stigma' in South Korea. For this purpose, data were collected through in-depth interviews from 8 women escaped from North Korea and 4 professionals. The findings of this study are as follows: Almost of them experienced negative perception and discrimination caused by language, pronunciation intonation, and differences of ways to express their emotions. And they experienced the disapproval as the native perception and confusion of ethnic identity. Several participants in this study try to build or organize their communities to give emotional and instrumental support for them. However, in these processes, they experience emotional conflicts and crises feelings of disorganization of their communities because of they didn't have experience to involve communities, and didn't have ideas of membership and their roles. And they were learned to criticize with each other in North Korea. They worry about their families' safety in North Korea. For this reason, they can't have trustful personal relationships among Koreans including people escaped from North Korea in South Korea. They want to participate in Korean's community activities, and learn to adjust to everyday lives in South Korea. In conclusion, based upon the outcomes of this study, it is expected that any practical implications or solutions for North Korean defector's welfare would be suggested.