• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2011년도 학술발표회
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• pp.373-373
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• 2011

Korean Government has been promoting Four River Restoration Project (i.e., Han, Geum, Nakdong, and Yeongsan rivers) since the second half of 2008. This project is expected to protect against floods and droughts by water resources management. Many researchers have study water resources management, but most studies were focused on direct runoff. However, in order to efficiently protect against floods and droughts, baseflow should be studied as well as direct runoff. Because baseflow has a great effect on streamflow, it needs to be correctly analyzed. For more accurate analysis of baseflow, direct runoff and baseflow from streamflow should be separated first. In this study, 12 flow gauging stations of four major rivers were selected, and flow data from them were obtained (2004-2010) through WAMIS and Web-based SWAT Bflow system (http://www.envsys.co.kr/~swatbflow) which was used to separate direct runoff and baseflow. Baseflow values of Pass 2 in SWAT Bflow system were used. As a result of this study, baseflow contribution was ranged from 23.4% to 68.6% and accounted for about 50% of streamflow. Through this study, it shows that in the case of the flow fluctuation, baseflow is more affected than direct runoff by changes in streamflow in a flood or dry season. Thus, baseflow estimation should not be overlooked for efficient water resources management. However, it has a limitation in this study that because this study used to select randomly 12 flow gauging stations, it did not show a common tendency on each watershed. It is important that flow gauging stations reflected on topographic characteristics of each watershed should be selected in a rigorous manner for further reliable and accurate baseflow estimation on four major rivers.

• 한국지구과학회지
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• 제28권2호
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• pp.240-247
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• 2007

지질정보는 광산개발, 토지이용, 환경보존, 건설산업 및 수자원 개발 등에 대하여 다용도로 사용하고 있다. 지질정보가 산업 원자재, 국가국토관리 및 국민 복지 증진에 상당히 기여하고 있지만, 국가적 차원에서 지질정보를 수집 및 관리할 수 있는 통합된 공공기관이 없는 실정이다. 따라서, 정부는 장기적이고 체계적인 방법으로 지질정보를 수집하여 데이터베이스로 구축하고 지질정보를 유통시키고 활용해야 한다. 본 연구의 목적은 국가의 모든 지질정보를 관리 및 운용할 수 있는 장기적인 종합관리체계 전략 마련에 있다. 이를 위하여 먼저, 국내외 지질정보 현황 및 관리 실태를 분석하고 둘째, 지질정보 수요조사에 대한 분석을 수행하고 셋째, 국가 지질정보 종합관리체계 개념도를 작성하며 마지막으로, 국가지질정보 종합관리체계 전략을 작성하였다.

• 수산해양기술연구
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• 제48권4호
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• pp.469-478
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• 2012

To manage, sort, and grade fishery resources, it is necessary to measure their morphometric characteristics. This labor-intensive task involves performing repetitive operations on land and on a research vessel. To reduce the amount of labor required, a vision-based automatic measurement system (VAMS) for the measurement of morphometric characteristics of flatfish, such as total length (TL), body width (BW), and body height (BH), has been developed as part of a database management system for fishery resources management. This system can also measure the mass (M) of flatfish. In the present study, we describe a morphological image processing algorithm for the measurement of certain characteristics of flatfish. This algorithm, which involves preprocessing, edge pattern matching, and edge point detection, is effective in cases where the flatfish being measured has a deformed tail and is randomly oriented. The satisfactory performance of the proposed algorithm is also demonstrated by means of experiments involving the measurement of the BW, TL and BH of a flatfish when it is straightened (BW : 117mm, TL : 329mm, BH : 24.5mm), when its tail is deformed, and when it is randomly oriented.

• 터널과지하공간
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• 제29권2호
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• pp.108-123
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• 2019

최근 전 세계적으로 지하 광산 내 안전관리의 중요성이 부각됨에 따라 실시간 작업자 위치추적, 모니터링 시스템, 원격 제어 등 정보통신기술을 접목한 광산안전관리 기술 개발이 한창 진행 중이다. 이러한 기술들은 네트워크 구축의 유연성을 위해 주로 무선 통신 방식이 적용되고 있으며, 국내에서도 지하 광산 내 무선 통신 네트워크를 통한 모니터링 시스템을 구축한 사례들이 있지만 국내 기준에 맞는 기술 개발이 필요한 실정이다. 따라서 본 연구에서는 지그비 기술을 활용하여 실시간 환경 모니터링 시스템을 개발하고 국내 석회석 광산에 적용한 결과를 고찰하였다. 나아가 개발된 환경 모니터링 시스템을 실시간 통기 모니터링 인터페이스인 $VentSim^{TM}$ LiveView와 연동하여 활용성을 검토하였다. 본 연구는 향후 통기 설비 제어 등 광산 통기 시스템 최적화에 관한 연구에 도움이 될 것으로 기대된다.

• 지질공학
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• 제22권2호
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• pp.185-194
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• 2012

급경사지 피해증가에도 불구하고 사면조사 전문인력 부족 및 조사부분의 기술이 정량화하지 못해 효율적인 유지관리가 이루어지지 못하고 있다. 이에 따라 위험 급경사지에 대한 과학적인 현장조사 및 평가기술 개발을 목적으로 기존 야장기입에 의한 조사방식에서 탈피하여 현장조사의 효율성을 향상시키고 증대시킬 수 있는 급경사지 유지관리 및 피해조사를 위한 시스템을 개발하고자 하였다. 급경사지 현장조사 및 실내업무 프로세스를 분석하여 시스템 개발에 필요한 소프트웨어 및 하드웨어를 선정 하였으며, 급경사지 조사 자료를 기입할 수 있는 '현장정보 입력시스템'과 확보된 자료에 대한 분석을 수행하는 '분석시스템'으로 구성된 '모바일 시스템'을 개발하였다. 또한 개발된 모바일 시스템을 이용하여 급경사지 붕괴가 발생한 현장에 적용하여 활용성을 검증하였다. 본 연구에서 제시한 모바일 시스템을 통해 현장조사 소요시간과 인력을 절감하고 급경사지 관리, 분석, 피해예방 업무의 효율성을 제고 할 수 있을 것으로 기대한다.

• 품질경영학회지
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• 제29권1호
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• pp.184-190
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• 2001

Industrial structure is more developed, the economical value of human resources and the cases which risks worker's Health & Safety is expended. The Safety & Health issues are focused on elements of control for management activity simultaneously with work environment as well as the risk elements which risks worker's life and body. The activity for combination of basic management System and Safety & Health management is progressing with active discussion in ILO, BS 8800 is specified the guidance of Occupational Safety & Health Management System in UK. 1996. This research refers to BS 8800:1996, specification as a basic model, and introduce of the result of certification development result in Occupational Safety & Health management System with in ISO 14001 Environmental System Standards & ISO 9001 Quality Management System Standards and Systemic Factors. Through this applicability and efficiency evaluation, we make an effort to support and to improve the specification. Also applicability evaluation of Occupational Safety & Health management System and the specification developed for the purpose of the third party certification is applied with expending in industry, and the method is presented through the case which is required to support for method review and activities.

• 대한전기학회논문지:전력기술부문A
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• 제50권11호
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• pp.506-513
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• 2001

The islanding detection for distributed resources (DR) becomes an important and emerging issue in power system protection since the distributed generator installations are rapidly increasing and most of the installed systems are interconnected with distribution network. In order to avoid the negative impacts from islanding operations of DR on protection, operation and management of distribution system, it is necessary to effectively detect the islanding operations of DR and rapidly disconnect it from distribution network. Generally, it is difficult to detect islanding operation by monitoring only one system parameter This paper presents a new logic based islanding detection method for distributed resources(DR) which are interconnected with distribution network. The proposed method detects the islanding operation by monitoring four system parameter: voltage variation, phase displacement, frequency variation, and the variation of total harmonic distortion(THD) of current; therefore, it effectively detects island operation of DR unit operating in parallel with the distribution network. We also verified the efficiency of the proposed algorithm using the radial distribution network of IEEE 34 bus model.

• Asia pacific journal of information systems
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• 제10권2호
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• pp.149-176
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• 2000

As companies become more dependent upon information systems(IS), the potential losses of IS resources become critical. IS management must assume the increasing responsibility for protection of IS resources as the IS and business environments become more vulnerable to various threats. The major issues facing management, when attempting to manage risks, include the assessment of the impact of risks on business objectives and the design of security safeguards to reduce the unacceptable risks to an acceptable level. This paper provides a case study of the risk management for IS. A Korean credit card company which has the high sensitivity for customers security was selected as a case. The risk management procedure using a powerful tool, CRAMM(the Central Computer and Telecommunications Agencys Risk Analysis and Management Method) was applied for this company.

• Journal of Forest and Environmental Science
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• 제27권3호
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• pp.205-210
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• 2011

This study aims to assess MEE(management effectiveness evaluations) on PAs(protected areas) for forest genetic resources which play an important role in biodiversity conservation, and then to suggest better ways to manage PAs for forest genetic resources. This study applies same indicators of the MEE on PAs as the ones described in the prior study(Ryu et al. 2011). The indicators applied are composed of five elements, thirty-two indicators which all would be grouped into one element by each traits. Overall indicators belonging to the element of output and outcome are comparatively low. Especially the ones related to the change of biodiversity, degree of ecosystem health, variation of civil complaint and visitor satisfaction are ranked mostly low. The element of input shows the low rank on the number of staff and budget. The score of indicators related to the identification of the threats of PAs and local communities' supports turn out to be low in the element of Context. The element of process, however, has scored low on Staff management, Education/Awareness programs and Governance, while the law enforcement, management regulation and capacity to prevent forest disasters have made relatively high score. Meanwhile, all indicators in the element of planning have scored relatively high as compared to the indicators belonged to other elements. This study suggests to strengthen a few constructive proposals, such as facilitating efficient management framework for PAs, developing local community cooperation program, establishing survey, research and monitoring system, and registering PAs to the WDPA(World Database on Protected Areas) according to the IUCN categories.

• 수산해양교육연구
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• 제6권1호
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• pp.77-91
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• 1994

The Yellow Sea and the East China Sea are the most important fishing grounds for the fishing industry of Korea, China and Japan which are major coastal states of these Seas. But the fishery resources in these fishing grounds are almost exhausted and also the sea region is seriously polluted. Accordingly an international joint countermeasure is necessary to recover the fishery resources and to keep the fishery a continuous industry. The authors inspected the existing fishery policies and international fishery relationship of the three coastal states, and suggested rational conservation and management regime of the fishery resources in these sea regions. 1. At present the legal status of the sea region beyond territorial sea is the high sea, for that reason the international cooperation is urgently needed to establish common regime for conservation and management of the fishery resources. 2. A series of scientific research on ecological system of fishery resources must be carried out in the sea region first of all for that purpose. 3. The existing Korea-Japanese Fishery Agreement and Sino-Japanese Fishery Agreement should be reformed to coincide with the new legal order of the UNLOS Convention, and the Sino-Korean Fishery Agreement should be concluded newly on the identical line. 4. As a conclusion, a joint conservation and management regime through a regional fishery organization or a individual conservation and management regime through the promulgation of exclusive economic zone by each state can be suggested to resolve the fishery resources conservation problem in the Yellow Sea and the East China Sea.