• Journal of The Korean Association of Information Education
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• 제25권3호
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• pp.501-510
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• 2021

This paper was described to assess the possibility of field application of the developed textbooks by developing a textbook using action learning to conduct ICT electromagnetic waves training education for elementary and middle school teachers and applying it on a pilot basis. To this end, it was organized to be used in conjunction with classes in several subjects and provided various teaching materials to facilitate teachers' convenience to use the textbook. Also, the textbook was composed of a content structure of 10 sessions. As for the proposed textbook, the overall understanding of ICT electromagnetic waves was improved through pilot application in teacher training, and problem-solving ability, cooperative learning ability, democratic citizenship, and knowledge information processing ability were improved through action learning. It can be said that it contributed to improving the understanding of ICT electromagnetic waves and teachers' competencies.

• The Korean Journal of Elementary Counseling
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• 제7권2호
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• pp.131-140
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• 2008

The purpose of this study is to develop a teacher's encouragement response and to prove its effect. In order to do so, this study includes three sub-studies. First study is to identify the categories of teacher's encouraging verbal response. second study is to examine whether a teacher's encouraging verbal response can be developed, and third study is to identify how a teacher's encouragement has an effect on school adjustment of elementary children. The results of the study are followings: First, listening, asking, supporting, accepting, and describing are established as teacher's encouraging verbal responses. Second, a teacher can develope his encouraging response through self-discipline. Third, teacher's encouragement is effective on the enhancing of children's school adjustment.

• The Journal of the Convergence on Culture Technology
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• 제8권6호
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• pp.661-666
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• 2022

This study presented the criteria for analyzing the corrosion of the powder extinguisher storage container according to the useful life, and conducted an experiment on the market area, the factory area, and the apartment building area to ensure proper performance at all times and drew the following conclusions.First, the experimental value for the degree of corrosion of external contact storage containers was found to be unsuitable in the factory area in 2014. In 2012, the experimental value for the degree of corrosion of external contact storage containers in apartment complexes was found to be inappropriate. Second, the experimental value for the dropout of the external paint in the storage container was found to be inappropriate in the factory area in 2014. In 2012, the experimental value of the degree of coating of the external paint storage container in the apartment building area was found to be inappropriate. It was analyzed that the useful life of the fire extinguisher is 10 years, and if it passes the sample test only once, it will be used for up to 13 years, but in fact, the difference varies greatly depending on the surrounding environment of the fire extinguisher place. Since the degree of corrosion of the storage container of the fire extinguisher from 8 years of the fire extinguisher's useful life is clearly decreased, it is judged that 5 years of the fire extinguisher is appropriate.

• Life and Agrochemicals
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• 제27권4호통권217호
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• pp.36-38
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• 2006

중국, 對일 농산물 수출기업 대상 연수 실시/ 세계 농약시장, 3년 연속 증가/ 일본, 지역특산물에 대한 농약관리법 특례 종료/ 中상해시, 오염된 밭 농산물 생산 금지/ 영국, 농약사용 규정 개정/ 美소비자단체, GM작물 철회 위한 농무성 소송/ 中운남성 중소기업, 메콩강 유역국가와 경제관계 강화

• Magazine of the Korea Concrete Institute
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• 제28권2호
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• pp.35-40
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• 2016

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 한국안전학회 1998년도 추계 학술논문발표회 논문집
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• pp.289-292
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• 1998

도시가스의 냄새는 오래전부터 가스의 누출사고를 미연에 방지하는 가장 간단한 경고수단으로 중요한 역할을 다하여 왔다. 과거 도시가스는 석탄가스가 주류였으며, 제조가스 자체는 그다지 취기를 가지지 않았다. 도시가스 원료로 납사, LPG, LNG 등을 사용함으로서 제조가스 자체에 취기가 희박하였고, 연료가스 및 도시가스의 부취가 안전에 대한 운용, 관리에 미흡한 점이 많았다. (중략)

• 전기의세계
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• 제14권3호
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• pp.41-42
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• 1965

근래에 와서 변압기는 철심, enamel 동선 및 절연재료의 발달로 인하여 경제적이며 경량화된 신뢰도가 높은 제품을 생산할 만큼 많은 발전을 보게 되었다. 주상변압기에 있어서 외국에서는 오래전부터 사용되어왔지만 국내에서는 최근에 와서 권철심형 변압기의 생산이 시작되어 한영공업주식회사에서도 미국 Westinghouse와 기술제휴하에 Wescore type 권철심 변압기의 생산을 추진하고 있으며 필자는 금반 6개월간의 기술 연수를 마치고 Westinghouse공장에서 보고 느낀바를 몇가지 여기에 소래하려는 바이다.

• KASI NEWSLETTER
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• 통권51호
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• pp.1-4
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• 2005

제3대 원장에 박석재 박사 취임/ 조직개편/ 김호일 박사 과학기술우수논문상 수상/ 양홍진 박사 미국 인명사전에 등재/ 취임사/ '보다 넓고 깊고 빠른 한국 대형 망원경을 사용한 천문학 연구' 워크샵 개최/ 2005 하계 교원 천문연수/ 직원화합 다과회 및 원장 설명회/ 인사발령/ 학계동정/ 콜로키움/ KVN 구축사업 진행상황

• Journal of the Korean Wood Science and Technology
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• 제33권1호통권129호
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• pp.77-86
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• 2005

In order to investigate the ability of log wood for oak mushroom production as a source of an alternative energy, both chemical and physical characteristics of log wood were investigated according to the cultivation periods. Also, both chemical and physical characteristics of material that treated by steam explosion were investigated to confirm the pretreatment effect by remaining enzyme as a control. The contents of ash, water-, alkali- and organic soluble extracts have been increased after the inoculation. It appeard that holocellulose contents substantially decreased and the contents of lignin as another main component of wood remained constant after the inoculation. However this result implied that indeed, a sufficient amount of lignin has been degraded paritially by enzymes of oak mushroom Lentinus edodes if we consider that the amount of holocelulose was substantially reduced. It also indicated that the degree of degradation gradually progressed but crystallinity decreased after the inoculation. The contents of water-, alkali- and organic soluble extracts have been increased by steam explosion. Holocellulose contents increased within narrow limits and lignin contents remained constant. However the contents of holocellulose and lignin have been decreased by steam explosion, considering that the amount of other extractives was relatively increased. The degree of crystallinity and lignin contents reduction by steam explosion was almost similar to the result obtained by increasing cultivation periods. According to the results, log woods for mushroom production have a potential as material for developing alternative energy.

• Proceedings of the Korea Water Resources Association Conference
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• 한국수자원학회 2020년도 학술발표회
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• pp.298-298
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• 2020

하천 혹은 그 인근에 설치된 시설물은 수문, 통문, 제방, 댐, 보, 배수펌프장, 상·하수도, 하구둑 등이 존재한다. 이러한 하천 시설물은 홍수나 가뭄 등 수해를 저감하는 역할을 한다. 그러나 많은 하천 시설물은 노후화, 기후변화, 하천환경변화 등으로 구조적 혹은 기능적 안정성의 저하가 우려되는 실정이다. 시설물 유형별 고령화율을 살펴보면, 댐, 하천, 상하수도 순으로 조사되었으며, 준공연수가 30년을 초과한 하천 시설물은 약 40%를 넘어섰다. 그럼에도 불구하고 하천시설물의 관리 구조는 시설물 설치단계까지만 치중되었으며, 이후 계획 재수립 단계까지의 평가 및 모니터링, 유지관리, 정보관리 등에 이르는 선순환 구조가 미흡한 실정이다. 시설물의 노후화에 따라 유지관리 비용이 증가하며, 대형사고로 이어질 수 있기 때문에 적절한 시기에 시설물 점검 및 유지보수가 매우 중요하다. 우리나라의 경우 시설물의 안전 및 유지관리에 관한 특별법에 따라 국가주요시설물은 안전점검을 실시하고 있으며, 시설물통합정보관리시스템(Facility Management System; FMS)에 안전등급을 제공하고 있다. 본 연구에서는 FMS의 하천 시설물 안전등급 현황을 기반으로 시설물의 효과적인 생애주기관리를 위해 하천 시설물의 성능평가모델을 제안하였다. 성능평가모델은 하천 시설물의 사용연수에 따른 안전등급의 예측이 가능하며, 관리자 측면에서 예산투입 등의 의사결정 시 활용이 가능할 것으로 판단된다.