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박석홍,이은웅,Seog-Hong Park,Eun-Woong Lee 한국작물학회 1973 Korean journal of crop science Vol.- No.14
수도 분얼 기간의 기온의 고저 및 교차가 수도 생육에 미치는 영향을 알고저 분얼기를 활착후 10일간씩 초기, 중기, 후기로 나누어 주간 온도를 $25^{\circ}C$, $30^{\circ}C$, 야간 온도를 10,15,20,$25^{\circ}C$로 7조합을 하여 작물시험장 인공 기상실에서 시험한 결과를 요약하면 다음과 같다. 1. 최고 분얼수는 조기, 중기 처리에서 많고 후기 처리에서 영향이 적었다. 2. 온도 처리 완료후의 초장$\times$경수의 적은 조, 중기에서 주간 $30^{\circ}C$, 야간$25^{\circ}C$에서 컸으며 후기 처리는 차이가 적었다. 3. R.G.R(g/g/day)는 조기 처리에서 높았다. 4. 성숙기 엽중은 조기 처리에서 가장 많고 후기 처리에서 적었다. 5. 따라서 수도 생육에 미치는 온도의 영향은 분얼 초기에 크다고 하겠다. In order to ascertain the effects of fluctuations and range of daily temperatures on the growth of rice, a pot(1/5, 000 are) experiment was conducted in the phytotron, Crop Experiment Station, in 1972. Seven treatment combinations of day-temperatures 25 and $30^{\circ}C$ with night-temperatures 10, 15, 20 and $25^{\circ}C$ were applied in three 10 days periods, in to which the tillering stage was split after rooting of the paddy, namely, early, middle and late. The results may be summarized as follows: 1. The number of tillers were maximum with the treatments of day-temperature $30^{\circ}C$ and night-temperatures 20 as well as $25^{\circ}C$ in the early and middle periods, while the effects were small in the late period. 2. Multiplying plant height and number of panicles resulted in a high figure by combining a day-temperature of $30^{\circ}C$ with night-temperatures 20 as well as $25^{\circ}C$ in the early and middle periods, and no differences in the late period. 3. The treatment in the early period yielded a high RGR(g/g/day), of which the treatment combinations of day-temperature $30^{\circ}C$ with night-temperatures 20 and $25^{\circ}C$ gave the highest figure. 4. High straw weight in ripening stage was obtained with the temperature treatments in the early period rather than those in the late period. 5. Accordingly, it seems that the effect of temperature on the emergence of tillers is the highest at the early stage of tillering.
박석홍,손영찬,유상대 ( Seog Hong Park,Yeong Chan Son,Sang Dae Yu ) 한국센서학회 1996 센서학회지 Vol.5 No.4
This paper presents the optimal design method of SAW filters with arbitrary frequency characteristics. The design program using the unconstrained nonlinear optimization method and FFT algorithm is developed for optimal design of SAW filters with arbitrary frequency characteristics. As a design example, a SAW TV IF filter with asymmetric-amplitude and nonlinear-phase frequency characteristics is designed.
손영찬(Son Yeong Chan),박석홍(Park Seog Hong),유상대(Yu Sang Dae) 한국정보처리학회 1998 정보처리학회논문지 Vol.5 No.12
Due to the high density of integration and the high performance in current integrated circuit, it is more emphasized to verify the electrical connectivity and performance of the circuit extracted from the layout. In this paper, we propose a new algorithm to extract the netlist including the geometric parameters of MOSFETs and the parasitic resistance and capacitance values. Where a set of polygon blocks for routing wires in the layout are described with directional edges and the layout extraction is carried out by checking over the abutment of these blocks on MOSFETs.