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朴晥澈,金光鎬 韓國作物學會 1985 Korean journal of crop science Vol.30 No.1
수도오염지역에 적응하는 수도품종을 선정할 목적으로 10개 장려품종을 공시하여 년중 계속해서 배출되는 복합오염물(SO2 , HF)의 영향을 받고 있는 오염지역과 이로부터 7km 떨어져 있는 비오염지역에서 실험을 수행하였으며 엽내오염물함량, 연반률, 수량 및 엽록소함량을 조사, 비교한 결과는 다음과 같다. 1. 오염지역에서 재배한 벼의 엽내 전류황 및 불소함량이 비오염지역에서보다 많았으며 연반은 오염지역에서만 발생하였는데 다수계품종이 일반계품종보다 연반발생률이 훨씬 높았다. 2. 연반발생률과 오염지역에 대한 비오염지역의 불소함량비율간에는 단상관이 그리고 연반발생률과 불소 및 전류황함량비율간의 중상관은 유의성이 인정되었으나 전류황함량비율과는 관계가 없었다. 3. 공시한 10개 품종중 오염지역에서 수량성이 높았고 비오염지역에 대한 오염지역에서의 수양비율이 높았던 낙동벼. 동진벼, 남풍벼, 서광벼 및 청청벼 둥을 대기오염지역에 적응하는 품종으로 선정할수 있었다. 4. 오염지역에서 생육한 벼는 주당수수, 1,000입중 및 등숙비율이 비오염지역보다 낮았으며 대기오염에 적응하는 품종들은 두 지역간 주당수수 및 등숙비율의 변이가 적었다. 5. 오염지역에서 생육한 벼의 지엽내 엽록소함량은 비오염지역에서의 것보다 낮았는데 엽록소 a가 b보다 대기오염물에 대하여 더 민감한 반응을 보였다. 6. 비오염지역에 대한 오염지역의 품종별 수량비율은 품종의 연반율, 두 지역간 엽내 전류황함량비율, 불소함량비율 및 엽록소함량비율 등과 아무런 관계도 인정되지 않았다. Ten recommended rice varieties were cultivated in paddy area affected by air-pollutants and in normal area to select varieties adaptable to air-pollution environment. Rice plants grown in pollution site showed higher contents of total sulfur and fluorine in leaf through the whole growing period compared with those in non-pollution site, and rice leaves destroyed by air-pollutants were found only in pollution site. Rice grain yield and four yield components of ten rice varieties grown in pollution site were lower than those in normal area. Five rice varieties among ten were selected as adaptable to air-pollution environment, based on their yielding potential in pollution site and grain yield ratio between two sites. Rice varieties adaptable to pollution showed little variation of percent ripened grains and number of panicles per hill between two sites. Chlorophyll content in flag leaf of rice plants grown in pollution area was lower than in non-pollution area. No relationship was found between grain yield ratio (pollution/non-pollution site) of ten varieties and total sulfur content ratio, fluorine content ratio, chlorophyll content ratio between two sites, and percent destroyed leaf in pollution site, respectively. This result suggest that varietal adaptability to air-pollution environment is not related with the amount of pollutants absorbed, but with the degree of response to pollutants.
동적파라미터 변동을 고려한 윈치 및 부하 운동제어시스템설계에 관한 연구
박환철,김영복,PARK, Hwan-Cheol,KIM, Young-Bok 한국수산해양기술학회 2017 수산해양기술연구 Vol.53 No.3
In this study, a winch and load motion control system design method is introduced. Especially, the winch and load (moving cart) are connected with long wire rope which is extended to few kilometers long. Therefore, the rope length changes such that many dynamic parameter values are changed as well by winding and releasing the rope from the winch system. In this paper, the authors designed the control system by considering the real time parameter variation to occupy and keep good control performance continuously. The effectiveness of introduced method was evaluated by simulation results.
朴晥澈 건국대학교 1985 論文集 Vol.20 No.1
Experiment were conducted to select the rice varieties to be adapted to air pollution through the total sulfur, water soluble sulfur, fluorine, chlorophyll in leaves and ratio of destroyed leaf of 10 varieties, Nagdong, Seomjin, Dongjin, Samnam, Nampoong, Hangangchal, Seogwang, Poongsan, Taebaeg, Cheong-cheong, were investigated on the outskirts of Yeo-Chun Industrial Estate where sulfur dioxide and fluoride were emitted and on non-pollution site. The results obtained can be summarized as follows ; 1. Total sulfur, water soluble sulfur, fluorine content in leaves were higher on pollution site than on non-pollution site. 2. Five varieties, Nagdong, Dongjin, Nampoong, Seogwang, Cheong-cheong, can be selected to varieties to be adapted to air pollution, 3. Most of yield components were higher on non-pollution site than pollution site. 4. The ratio of destroyed leaf and pollutants ratio, in leaves pollution/non pollution site were not correlated with the ratio of yield, pollution site/non-pollution site. 5. Chlorophyll contents in loaves were higher on non-pollution site than on pollution site and it's ratio, pollution site/non-pollution site, was not correlated with the ratio of yield.