• 한국수자원학회논문집
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• 제53권spc1호
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• pp.773-784
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• 2020

본 연구에서는 수자원시설물의 노후화 정도와 관리현황 등을 조사·분석함으로써, 수자원시설물의 유지관리 체계 선진화를 위한 입법 및 정책과제를 제시하였다. 수자원시설물의 노후화를 분석하기 위해 한국시설안전공단에서 운영하는 시설물통합정보관리시스템의 자료를 수집하여 분석에 활용하였다. 시설물별, 종별, 시도별, 등급별로 구축된 안전등급 자료를 이용하여 위험시설물 비율과 고령화율을 산정하여 수자원시설물의 현황을 분석하고 수자원시설 관련 지침 및 매뉴얼을 조사하였다. 이를 통해 1) 수자원시설물 범위의 재조정 및 지침·매뉴얼의 보완, 2) 재해여건 변화를 고려한 유지관리 체계의 구축, 3) 시설물통합정보시스템의 개선 및 표준연계서비스 활성화, 4) 시설물의 자산관리체계 구축의 네 가지 입법 및 정책과제를 제시하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2015년도 제46회 하계학술대회
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• pp.831-832
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• 2015

K-water에서는 대청댐 하류의 용수를 취수하여 대청광역 계통에 1일 98만㎥을 공급할수 있는 현도취수장을 운영하고 있다. 취수장에는 고압전동기 10대가 운영되고 있으며, 장시간 연속운전 및 하절기 주위온도 상승 등으로 권선온도가 상승되어 설비의 안전성 문제가 제기되어 왔다. 취수펌프동 실내온도 및 고압전동기 권선온도 저감을 위해 펌프동 배기시스템 운영시간 변경 및 고압전동기 냉각 흡기덕트 설치 등의 개선 노력으로 권선온도 저감은 물론 에너지절감 및 기기의 수명연장 등 설비 운영의 안전성을 확보한 연구결과이다.

• Molecules and Cells
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• 제38권10호
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• pp.859-865
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• 2015

Most imprinted genes are concerned with embryonic development, especially placental development. Here, we identified a placenta-specific imprinted gene Qpct. Our results show that Qpct is widely expressed during early embryonic development and can be detected in the telecephalon, midbrain, and rhombencephalon at E9.5-E11.5. Moreover, Qpct is strikingly expressed in the brain, lung and liver in E15.5. Expression signals for Qpct achieved a peak at E15.5 during placental development and were only detected in the labyrinth layer in E15.5 placenta. ChIP assay results suggest that the modification of histone H3K4me3 can result in maternal activating of Qpct.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2006년도 하계학술발표대회 논문집
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• pp.1049-1054
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• 2006

In many countries, methods to evaluate buildings have been investigated and practiced in order to reduce energy use and search for sustainable architecture while providing comfortable space for the users, in Korea, the current certification system has a short history, and has been improved for better practicability. Among many different factors in the certification system, the water resource problem is an important as the demand has been sharply increasing while reckless use and sewage treatment system causes the reduction of usable water. This study aims to find problems of water usage in building. water resource in the current certification will be used for the analysis of each factor in water resource, and the direction of improvement required in the certification in order to improve the water usage in buildigns will be proposed.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 제36회 하계학술대회 논문집 B
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• pp.1725-1727
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• 2005

Korea Water Resource Corporation is planning the active application on the New-Renewable energy enterprise at Si-Wha region which is located in Kyonggi-Do, builded up as the national policy enterprise and also currently carrying out a tidal electric power station construction. This research is considered of geography circumstance of the region. We are to analyze a wind power resources application feasibility in the side of economical efficiency and see simultaneously application of the wind power system also.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2005년도 학술발표회(1)
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• pp.517-517
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• 2005

• Journal of Microbiology and Biotechnology
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• 제24권5호
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• pp.629-638
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• 2014

This study describes an alternative mixed culture fermentation technology to anaerobically convert lignocellulosic biomass into butyric acid, a valuable product with wide application, without supplementary cellulolytic enzymes. Rice straw was soaked in 1% NaOH solution to increase digestibility. Among the tested pretreatment conditions, soaking rice straw at $50^{\circ}C$ for 72 h removed ~66% of the lignin, but retained ~84% of the cellulose and ~71% of the hemicellulose. By using an undefined cellulose-degrading butyrate-producing microbial community as butyric acid producer in batch fermentation, about 6 g/l of butyric acid was produced from the pretreated rice straw, which accounted for ~76% of the total volatile fatty acids. In the repeated-batch operation, the butyric acid production declined batch by batch, which was most possibly caused by the shift of microbial community structure monitored by denaturing gradient gel electrophoresis. In this study, batch operation was observed to be more suitable for butyric acid production.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2022년도 춘계학술대회
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• pp.300-302
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• 2022

본 논문은 FANET 환경에서 UAV 간에 자원 충돌 없이 무선 자원을 공유 할 수 있는 시분할 다중접속 기반 자원 충돌 회피 기법을 제안한다. 제안하는 기법은 UAV에 설치된 GPS 장치로부터 얻은 정보 토대로 UAV 이동성을 추측하여 자원 충돌 발생률을 감소시키고자 한다. 시뮬레이션을 통해 경쟁기반 방식 프로토콜과 성능 비교를 하였으며, 제안한 알고리즘이 자원 충돌을 감소시킬 수 있음을 확인하였다.

• 한국IT서비스학회지
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• 제20권6호
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• pp.141-150
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• 2021

With the recent spread of the concept of Smart Cities which is to solve urban problems with ICT technology, Living Lab, which identifies the demands of citizens who dwell in the city and verifies the acceptability of the services being introduced, has become an important topic. Living Lab is an open innovation platform introduced in consideration of the user's perspective in real life and is a new approach in that service developers use collective intelligence in the process of Co-creation with users. Living Lab is operated on topics which is close to citizens' daily lives such as energy, housing, transportation, and education. In particular, as energy and environmental-focused Living Lab emerges in accordance with the 'Korean New Deal Policy', interest and importance in the field are increasing. The paper derives the characteristics of water resource Living Lab through case analysis of several Living Lab practices. Water resource Living Lab in Daejeon and Chuncheon, which are located in Korea, and water resource Living Lab in Romania and Indonesia are covered in this paper as the reference. The paper finally analyzes the case of Sambang Water Living Lab in Gimhae, which is the city located in southern part of Korea. As a result of case analysis, the urban water resource Living Lab focuses on the raw water of urban water resource and should respond sensitively to the safety of citizens. And for the success of this urban water resource Living Lab, it is essential to ensure that citizens participating in the Living Lab clearly understand the concept of water resources, and citizens' opinions to be implemented as services.

• 한국지하수토양환경학회지:지하수토양환경
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• 제17권2호
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• pp.1-6
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• 2012

Total Economic Value (TEV) provides a framework to estimate the economic value of water resources including groundwater with multiple applications to natural resource economics and environmental economics. Crucial to the application of economic analysis to natural resources are techniques to value the resources as an economic value that is expressed in monetary terms. On the other hand, the aim of TEV estimation is to determine the economic value of water resources including 'use' with production and recreation and 'non-use' such as existence values. TEV is used to assess the economic value of water resources for the multiple goods, and environmental 'services' that are provided by a water resource and also used to assess options for water use, for example balancing production values provided by water resource use against the cost of resource degradation by that use. The value of TEV can be assessed over time where pollution or unsustainable use may reduce the economic value of an environmental asset. Therefore, values are used to assess options of resource use, sometimes leading to policies on resource conservation or allocation. In conclusion, the application of TEV would be well adjusted over Jeju Island where groundwater resources account for more than 98% water resources and the budget of water demand/supply shows disparity over the Island.