Jong Cheol Lee
Sungkyunkwan University · Engineering
About the Lab
Professor Jong Cheol Lee's research lab specializes in agricultural biotechnology and plant physiology, with a primary focus on ginseng cultivation, environmental stress responses in plants, and the optimization of growing conditions for improved yield and quality. The lab investigates critical factors such as seed sowing techniques, light and temperature management in ginseng fields, and low-temperature tolerance mechanisms in ginseng roots. Additionally, the lab explores broader aspects of plant productivity and stress resilience, including physiological responses to environmental variables and the impact of cultivation practices on plant development and survival.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15【To know possibility of raw ginseng production for white- and red-ginseng by direct-sowing culture, seeds were directly sowed or seedlings were transplanted at soil condition of sandy loam in ginseng field. After cultivation, the characters of 5-year-old ginseng were investigated. Number of survived plants was increased with increase the seeding quantity in direct-sowing culture, the survived plants in direct-sowing culture was higher than that of transplanting one. Rate of the numbers of surviv
인삼의 해가림개선을 위한 기초자료를 얻고자 Styrol-foam판, 송판 및 Polytex를 재료로 해가림을 설치하여 이들 해가림하의 광도 및 온도가 인삼의 광합성 및 근의 수량에 미치는 효과를 조사하였던바, 그 결과를 요약하면 다음과 같다. 1. 해가림하의 상대조도는 관행 해가림구에 비해 Styrol-foam판, 송판 및 Polytex 차광구에서 현저히 높았으며,해가림하의 최고온도도 관행구에 비해 약간 높았으나 습도는 관행 해가림구에 비해 개량해가림구에서 현저히 낮았다. 2. 엽록소의 함량은 3년생 및 4년생 인삼에서 모두 Styrol-foam 차광구에서 가장 많았고,다음이 관행 해가림구였으며, 엽록소의 함량과 광합성량간에는 정의 유의상관이 인정되었다. 3. 2 $0^{\circ}C$ 에 비해 3 $0^{\circ}C$ 에서 광합성량은 현저히 감소되었으며, 2 $0^{\circ}C$ 에서는 35,0001ux까지는 광도가 증가됨에 따라 광합성량은 현저한 직선적인 증가를 보였으나, 3
이 연구는 무용교사의 언어적 행동이 학습태도에 미치는 영향을 규명하는데 있다. 이와 같은 연구 목적을 달성하기 위하여 선행 연구와 이론을 토대로 연구모형과 가설을 설정하였으며, 무용교사의 언어적 행동을 독립변인으로, 학습태도를 종속변인으로 설정하였다. 연구의 대상으로는 1998년 6월 현재 서울, 경기지역에 소재하고 있는 예술고등학교 여학생과 서울시에 소재하고 있는 일반고등학교 여학생을 모집단으로 하고 표본 추출은 집락 표집 방법을 통해 총 400명을 대상으로 하였다. 조사도구는 언어적 행동 및 학습태도에 관한 설문지를 본 연구에 맞게 수정 보안하여 작성하였다. 수집된 자료는 연구의 목적에 따라 T-test와 다중 회귀분석을 사용하였고, 각 가설 유의수준 α= .05에서 검증하였다. 이상의 연구방법 및 자료분석 결과를 토대로 얻어질 결론은 다음과 같다. 첫째, 예술고등학교와 일반고등학교 무용교사의 언어적 행동에 대한 학생들의 인지도는 차이가 있었다. 둘째, 학습태도 요인 중 만족도,
The high-voltage circuit breaker plays an important role in the electrical system because there has been a need for suitable switching devices capable of initiating and interrupting the flow of the electric current. It continues as the contacts recede from each other and as the newly created gap is bridged by a plasma. The arc plasma happens inside the insulation nozzle of SF6 self-blast interrupter which is newly developed as the next-generation switching principle. The ablation of PTFE nozzle
One exotherm was detected in the intact ginseng seeds containing more than 35% water, but in seeds with 20% there was no exotherm. The shapes of exotherm were remarkably uniform without relation to water content above 35%. The temperature at the initiation of freezing varied from -3.5 to -9.6 with the different water content in the seeds, and the Initial temperature of freezing delayed with the decrease of water content. The resistance damage at low temperature appeared in order of maln body, rh
To predict the behavior of gas-liquid two-phase flows in a centrifugal pump impeller, a three dimensional numerical method is proposed on the basis of a bubbly flow model. Under the assumption of homogeneous bubbly flow entraining fine bubbles, the equation of motion for two-phase flow is represented by the conservation of mass and momemtum. These equations for each phase are solved with a finite volume method and IPSA to obtain velocities, pressure and void frations respectively. These claculat
The purposes of this study were to investigate motivations for participating in cultural physical education in college student's. Furthermore, the goal was to explores the relationships among participation motivation, sports commitment, and class satisfaction of cultural physical education in college student's. For this study a structural covariance model was developed on the basis of the 282 college student's surveyed using the covariance sampling method from Jun in 2004. To analyze the data, c
Research Areas
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