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박주현(Joo-Hyeon Park),송성도(Sung-Do Song),최지훈(Ji-Hoon Choi),김은주(Eun-Ju Kim),김선정(Sun-Jeong Kim),송창근(Chang-Geun Song) 한국멀티미디어학회 2009 한국멀티미디어학회 학술발표논문집 Vol.2009 No.1
본 논문은 레이싱 게임 참여자의 의도를 최대한 수용할 수 있도록 사용자의 동작을 인식하기 위한 장치로 센서를 부착한 하드웨어 입력 장치를 제안한다. 센서가 부착된 입력 장치를 통해 레이싱 게임 뿐만 아니라 다른 장르의 게임에도 적용 가능한 솔루션을 제공하고 Havok Physics Engine을 이용하여 차량의 물리를 시뮬레이션 한다.
수도 재배환경 중 제초제 Cyclosulfamuron 의 잔류특성
이영득(Young Deuk Lee),송성도(Sung Do Song) 한국환경농학회 2001 한국환경농학회지 Vol.20 No.4
Several experiments including persistence, distribution, leaching, and terminal residue trials were carried out to investigate the behavior of cyclosulfamuron in rice paddies. Cyclosulfamuron was gradually dissipated in two different soils showing the first-order kinetics. Half-lives of the herbicide were calculated to be 17∼30 and 14∼16 days under field and laboratory conditions, respectively. In the paddy soil/water system, the residue tended to reside more in the soil phase as time elapsed. Cyclosulfamuron was less persistent in paddy water than in soil with half-lives of 10 and 19 days, respectively. No cyclosulfamuron was leached below 20 ㎝-deep soil during water percolation with 50 cm hydraulic head, while some downward mobility was observed within the soil column. When EC and SC formulations of cyclosulfamuron were applied to the paddy field at 120 or 150-day pre-harvest intervals, its terminal residues in hulled rice were all less than 0.01 ㎎/㎏, irrespective of formulation type and application timing. In rice straw, however, some residues were found at <0.02∼0.05 ㎎/㎏ as SC formulation was applied. Rapid dissipation, restricted mobility, and low terminal residues of cyclosulfamuron in rice paddies suggest that no significant residues would be transported or carried over to the non-target environment.
Cyclosulfamuron이 벼의 생육과 Acetolactate Synthase 활성에 미치는 영향
지승환 ( Seung Hwan Ji ),송성도 ( Sung Do Song ),정병룡 ( Byeong Ryong Jeong ) 한국환경농학회 2003 한국환경농학회지 Vol.22 No.1
Cyclosulfamuron, a herbicide of sulfonylurea type, is a relatively new compound which control broad leaves and perennial weeds in rice field. However, this herbicide has a minor disadvantage of decreasing rice plant growth, especially in early growth stage. Therefore, for introducing this cyclosulfamuron as a herbicide in rice field, it is important to minimize the suppression of early plant growth with maintaining weed control efficacy. This study was conducted to evaluate effects of cyclosulfamuron on early plant growth and acetolactate synthase activity of rice (Oryza sativa cv Dongjinbyeo, Hwasungbyeo, Ilpumbyeo). Rice growth was inhibited by cyclosulfamuron in their early growth stage. The concentrations required for 50% inhibition of Dongjinbyeo, Hwasungbyeo and Ilpwmbyeo growth were 6.3, 9.2 and 146.8 mg/kg, respectively. Inhibition effect of cyclosulfamuron on the root elongation was greater than the effect on the shoot growth. Concentrations required for 50% inhibition of acetolactate synthase activity from Dongjinbyeo, Hwasungbyeo, Ilpumbyeo were 42.7, 32.7 and 56.7 μM, respectively.