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전방 십자인대의 파열시의 자기공명영상:직접소견의 중요성
신현준,이창희,최영칠,전혜정,박정희,김동헌 건국대학교 의과학연구소 2001 건국의과학학술지 Vol.11 No.-
It is Important to know the normal size, shape, and signal intensity of anterior cruciate ligament in the evaluation of knee injury Many studies have reported findings of tear or rupture as well as normal anatomy of these structure, especially with MR images. To our knowledge, there are few studies about normal structures of anterior cruciate ligament in MR images. The purpose of this study is to compare normal finding with tear of anterior cruciate ligament on MRI. Twenty-three cases with rupture of anterior cruciate ligament were evaluated on MRI, measuring the length, thickness, width of anterior cruciate ligament, and angles of anterior and posterior cruciate ligaments. Mean length, thickness, and width of anterior cruciate ligament in patients with rupture were 37.7±4.8mm, 9.0±1.2mm, 8.0±0.8mm, and mean angles of anterior cruciate ligament, and posterior cruciate ligament were 48.1±9.6˚, 118.8±13.1˚. Curvature ratio of posterior cruciate ligament was 0.25±0.09. The results showed significant differences between normal persons and patients with complete or partial rupture, and the mean angle and curvature ratio of posterior cruciate ligament which are known to related with indirect sign in tear of anterior cruciate ligament showed significant differences between ours and that of western countries. These results will be useful in the evaluation of patient wish rupture of anterior cruciate ligament, especially on MRI.
정진철,윤영호,장동칠,박천수,김숭열 한국환경농학회 2003 한국환경농학회지 Vol.22 No.4
감자의 가공품질에 영향을 미치는 토양 및 기상조건을 구명하기 위하여 국내 주요 감자재배 지역 7곳에 1994년부터 1995년까지 2년에 걸쳐 각 지역별 2~3개 농가에서 감자를 재배하였으며, 각 재배포장의 토양시료 채취 및 괴경을 수확하였다. 지역별 감자 괴경의 가공품질 차이의 원인을 구명키 위하여 토양분석과 수확일 기준으로 수확전 70~10일 사이의 기상조건을 10일 간격으로 조사하였으며, 수확된 괴경의 가공품질과 이들 요인과의 상관계수를 계산하였다. 시험결과 감자의 가공품질은 토양의 화학적 특성 중에서 토양내 유기물함량과 높은 상관계수를 보였다. 또한 기상조건과 관련하여 수확전 30~10일 사이의 최저온도가 낮으며, 일조시간이 많을수록 감자의 가공품질이 향상되었다. 또한 이들 상관관계가 높은 요인들을 대상으로 가공품질 요인에 대한 다중회귀식을 구한 결과 괴경건물율과 칩색도는 비교적 높은 결정계수를 보여주었다. 따라서 우리나라에서 고품질의 가공원료 생산을 위한 적지 선정에 있어 토양중의 유기물 함량과 그 지역의 최저온도 및 일조시간 둥이 고려되어야 할 것으로 생각된다. In order to examine the difference in processing quality of potato tubers among localities, chemical properties of soils were analyzed and climatic conditions were investigated. potatoes (Solanum tuberosum L) were grow at seven localities of Korea during two years from 1994 to 1995. Soil samples and tubers were obtained from 2 to 3 commercial farms per locality with 10 days interval from 70 days before harvesting. As the result of that, higher correlation in processing quality was found with organic material content among soil conditions. On the climatic conditions, minimum temperature and sunshine hours during the period from 30 to 11 days before harvesting exhibited highly significant negative correlations with all quality parameters except reducing sugar content. Additionally, regression equations based on the observed level of these factors showed the relatively high coefficients of determination for dry matter content and chip color. To produce higher quality potatoes for processing, therefore, climatic conditions such as minimum temperature and sunshine hour and soil condition such as organic matter content have to be considered before the selection of areas or fields.
이규빈,최장규,박영은,정건호,권도희,조광룡,천충기,장동칠,진용익,Lee, Gyu-Bin,Choi, Jang-Gyu,Park, Young-Eun,Jung, Gun-Ho,Kwon, Do-Hee,Jo, Kwang-Ryong,Cheon, Chung-Gi,Chang, Dong Chil,Jin, Yong-Ik 한국농림기상학회 2022 한국농림기상학회지 Vol.24 No.3
Due to abnormal weather conditions caused by climate change, natural disasters and damages are gradually increasing around the world. Global climate change as accompanied by warming is projected to exert adverse impact on production of potato, which is known as cool season crop. Even though, role of potato as a food security crop is expected to increase in the future, the climate change impacts on potato and adaption strategies are not sufficiently established. Therefore, this study was conducted to analyze the damage pattern of potatoes due to high temperature treatment and to evaluate the response of cultivars. T he high temperature treatment (35~38℃) induced heat stress by sealing the plastic house in midsummer (July), and the quantity and quality characteristics of potatoes were compared with the control group. T otal yield, marketable yield (>80 g) and the number of tubers per plants decreased when heat treatment was performed, and statistical significance was evident. In the heat treatment, 'Jayoung' cultivar suffered a high heat damage with an 84% reduction in yield of >80 g compared to the control group. However, in Jopung cultivar, the decrease was relatively small at 26%. Tuber physiological disturbances (Secondary growth, Tuber cracking, Malformation) tended to increase in the heat stress. Under heat conditions, the tubers were elongated overall, which means that the marketability of potatoes was lowered. T he tuber firmness and dry matter content tended to decrease significantly in the heat-treated group. T herefore, the yield and quality of tubers were damaged when growing potatoes in heat conditions. T he cultivar with high heat adaptability was 'Jopung'. T his result can be used as basic data for potato growers and breeding of heat-resistant cultivars.
Chang, Dong-Chil,Jeong, Jin-Cheol,Lee, Yong-Beom The Korean Society for Bio-Environment Control 2006 시설원예‧식물공장 Vol.15 No.4
A potato (Solanum tuberosum L. cv. Superior) cultivar was grown in aeroponic cultivation system to investigate the effect of root zone cooling in summer. Based on their nutrient uptake, growth responses, and tuberization, the possibilities for potato seed production were determined. Although shoot growth and early tuberization increased in the conventional non-cooling root zone system (root zone temperature of $25\pm2^{\circ}C$), stolen growth, photosynthesis, transpiration rate and number of tubers produced were higher in the cooling root zone system ($20\pm2^{\circ}C$) than in the non-cooling system. Increasing root zone temperature above $25^{\circ}C$ stimulated absorption of K more than T-N, P, Ca, Fe and Mn. On the other hand, root zone temperatures in the range of $20^{\circ}C$ to $25^{\circ}C$ did not affect Mg contents. The lower uptake and supply to leaves of T-N, Fe and Mn at the high root zone temperature promoted early tuberization and advanced haulm senescence. The results stress the importance of keeping root zone temperature to as low as below 20, particularly in summer under temperate Bone.