• 한국농공학회:학술대회논문집
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• 한국농공학회 2002년도 학술발표회 발표논문집
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• pp.97-100
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• 2002

So far, the water management have separately been accomplished by water supply, flood control, and environmental river management. In spite of sustainable policy of water resource development, flood & drought damage, poor water accident, and deterioration of river ecosystem have continuously occurred. It means that it is difficult to improve those problems with the present systems and institutions. So, it is time to discuss to change the present water management system of administrative sense into the one classified by the watershed in order to understand problems of water resource in the regional basis. First, a integration of similar branch office in organization and a work specialization should be driven in the government. Second, it is desirable to develop the water resources according to the inherent characteristics of the watershed.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 제37회 하계학술대회 논문집 A
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• pp.105-106
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• 2006

KEPRI has completed to develop KP-ROTS Ver 1.1 and applied to 12 power transmission district offices and Je-ju branch office in KEPCO, which was updated from the exiting power restoration training simulator related to power restoration project. This program has functions such as black-start line analysis for all network blackout, restoration training on wide blackout and simple study on outage plans. KEPCO expects that local operators will train well for restoration procedures against wide blackout by using KP-ROTS.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 제36회 하계학술대회 논문집 A
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• pp.539-541
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• 2005

본 연구의 목적은 배전선로에서 운용중인개폐기, 변압기, 피뢰기 등의 규정 접지저항을 확보코자 시행하는 접지공사에 필요한 접지봉을 땅속 깊이 시공할 수 있는 접지봉의 개발과 접지봉 시공용 기계식 타격장치를 개발 활용하는 효율적, 경제적인 접지공법을 연구함에 있다. 또한 접지봉의 경년열화특성을 최소화하고자 접지봉의 접속부 구조를 개선하여 경년열화 특성을 향상하는데 있다. 특히, 굴착이 곤란한 도심지에서 최소 면적만을 굴착하여 규정 접지저항을 확보하는 방법을 제시하고 접지의 설계 및 시공 둥 실무에 활용할 수 있도록 하였다.

• 한국동물위생학회지
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• 제24권4호
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• pp.369-374
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• 2001

This study was conducted to investigate the hatchability and infertility of the ostrich eggs. Seven batches of ostrich eggs were imported from Australia into Korea in winter season under quarantine restrictions. Single stage incubation was carried out and the eggs were weighed before incubation. The weight of imported ostrich eggs was varied from 1,074 to over 1,650g and the average egg weights for batches were similar. The hatchability of all eggs batch was reached between 11 and 31%. The infertility of seven batches was varied from 36 to 63%. The first batch of eggs showed relatively low infertility(39％) and high hatchability (31％). On the contrary, the last batch of eggs had low Infertility(36%), and it had the lowest hatchability(11%). The result of this study suggests that hatchability of ostrich eggs imported in late laying season is significantly low because the number of infertile eggs is increased.

• 농촌지도와개발
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• 제16권1호
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• pp.21-49
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• 2009

There is a wide range of agreement for reorganization of administrative units. It is expected that regionalization of city governments and city-county consolidation would contribute to enhance efficiency of extension services and weaken citizen accessibility, responsiveness, and participation. Therefore, it is suggested that branch office of extension center should be provided to the isolated rural areas in order to maintain the appropriate level of services. Also, the relationship and linkage between the national/regional government and local extension centers should be reshaped by making current linkage system such as monthly Provincial Meeting and central-local association more effective. Establishment of agricultural database of each local region is needed to strengthen local extension center's role. Finally, extension service agency needs to consider to expand its function from the traditional extension services to a variety of 'rural issues.'

• 한국응용곤충학회지
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• 제49권2호
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• pp.163-166
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• 2010

지난 9년 동안 (2000-2009) 우리나라 입항지로 수입된 중국산 묘목류에서13종의 가루깍지벌레과가 검출되었다. 이중 Phenacocus madeirensis Green의 중국분포를 처음으로 보고하고, 중국산 수입 묘목류에서 검출된 가루깍지벌레과의 종 동정에 필요한 목록 및 검색표를 함께 기재하였다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2010년도 춘계학술대회 논문집
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• pp.2069-2075
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• 2010

The broadcasting system for the customer safety and conveniency is one of the important convenience facilities taking charge of customer guidance, emergency situation broadcasts for the people waiting at the platform, waiting lounge and train approaching broadcasts. To maintain this broadcasting facility local management control system(LMC) is needed. LMC observes operation status of the facility components which is set up at station and the observation results are confirmed through out remote management PC installed in the jurisdiction branch office. The staff only observes and confirms the errors of the electrical power source at broadcasting facility components accordingly the real mechanical troubles are detected by on-the-spot survey. this paper deals with existing broadcasting system only acting as a simple observation function and the research of LMC function extension which controls, monitors and tests broadcasting facility.

• 대한수의학회지
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• 제38권3호
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• pp.581-588
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• 1998

Eight monoclonal antibodies(MAbs) against bovine coronavirus(BCV) were produced and characterized. Three MAbs(1G9, 4H12, 5C1) specific to the S glycoprotein and two HE glycoprotein-specific MAbs(2A5, 5G4) were found to neutralize the BCV in fluorescence focus neutralization(FFN) test. Two HE-specific MAbs from the neutralizing MAbs inhibited the hemagglutinating activity of the BCV. None of the N protein-specific MAbs(1C1, 5A12, 6H1) neutralized the virus infectivity. Bovine coronavirus and mouse hepatitis virus, which belong to group II coronaviruses, were differentiated from other groups of coronaviruses(porcine transmissible gastroenteritis virus, porcine epidemic diarrhea virus, canine coronavirus) by all MAbs in fluorescence antibody test(FA), but not in FFN test.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2015년도 제46회 하계학술대회
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• pp.551-552
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• 2015

정부의 신재생에너지 확대 보급 사업에 의해 현재 한전의 배전계통에는 다수의 분산형 전원이 연계되고 있으나 기존의 배전계통은 단방향 전력계통으로 설계되어 있으며 다수의 분산전원이 연계되는 경우 배전계통에 많은 문제점이 나타나고 있다. 따라서 기존의 단방향 고장계산 방식에서 분산전원에서 기여하는 고장전류를 함께 고려하는 양방향 보호체계로의 전환 및 분산형전원 영향을 고려한 보호협조 방안이 필요하다. 본 논문에서는 다수의 분산전원이 연계된 배전계통에서 배전계통 고장시 분산전원에 의한 효과를 고려한 보호기기 정정방안을 제시하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2015년도 제46회 하계학술대회
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• pp.693-695
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• 2015

현재 전자식 전력량계는 전국기준 45%로써 2020년까지 모든 기계식 전력량계를 전자식 전력량계로 교체하고 있다. 전자식 전력량계는 계량데이터를 LP(Load Profile) 형태로 메모리에 저장하여 보관하고 있으며 저장된 LP는 잔자식 전력량계에 모뎀을 통해 한전 서버로 보내지거나 현장에서 노트북을 연결하여 유선으로 취득하고 있다. 기존 기계식 전력량계에서 얻지 못했던 무효전력, 피크전력, 역률, 주파수 등 다양한 정보를 얻을 수 있으나 전자식 전력량계 제조사에 따라 운영프로그램이 틀리고, 전자식 계기에서 노트북으로 LP를 전송시 사용하는 컨버터가 전력량계 형태에 따라 달라 현장업무시 불편한 점이 발생한다. 그리고 유선으로 취득함에 따른 현장업무 불편과 안전사고의 우려가 있다. 따라서 효율적으로 계량데이터를 취득하기 위해서는 운영프로그램, 노트북 연결장치를 일원화하고 통신선이 없이 취득하는 방법으로의 개선이 필요하다.