SCM(Supply Chain Management)의 이해와 성공적인 구축사례에 대한 연구

오수찬 한국유통과학회 2010 한국유통과학회 학술대회 논문집 Vol.2010 No.-

The effect of transplant age on vegetable growth characteristic in a cylindrical paper pot system

수찬,김시홍,김재경,Jae-Yun Heo,Ngoc Thang Vu,Ki Young Choi,김일섭,Dong Cheol Jang 한국원예학회 2021 Horticulture, Environment, and Biotechnology Vol.62 No.3

This study aimed to estimate the seedling performance of cylindrical paper pot (CPP) seedlings and to determine the optimaltransplanting age of CPP seedlings based on seedling vigor. The studied vegetables were cucumber, tomato, paprika,and two varieties of cabbage, and the younger seedlings were obtained by shortening their raising period by 10 and 20 dayswith CPP. At the same transplanting age, the size of CPP seedlings was smaller pre-transplant but increased to a similarlevel to the plug seedlings soon after transplanting. The growth curves of leaf area and dry weight of younger CPP seedlingsexhibited a steeper rise trend. The seedling vigor indicators, relative growth rate (RGR), net assimilation rate (NAR), weresignifi cantly increased in younger CPP seedlings of all vegetables, which were 10 or 20 days younger than plug seedlings. Thecompactness (CP) and seedling health index (SHI) of cucumber, and the leaf area ratio (LAR) and specifi c leaf area (SLA) ofcabbage were signifi cantly increased when shortened by 10 and 20 days, while the CP and SHI of paprika were signifi cantlydecreased when shortened by 20 days. Our results suggest that CPP may prevent the seedlings from overstretching and canprovide a wild range of transplanting age choices to produce vigorous seedlings. Further, the seedling vigor indicators weresuccessfully used to determine the transplanting age of CPP seedlings. The optimal transplanting age of CPP seedlingsof tomato, paprika, and cabbage was 10 days younger than plug seedlings, whereas cucumber transplanting age could bedecreased by either 10 or 20 days.

Control of Stretching of Tomato (Lycopersicon esculentum Mill.) on Cylindrical Paper Pot Seedling Using High-Salinity Potassium Fertilizers

Chan Xu(수찬),Si Hong Kim(김시홍),Dae Hoon Kim(김대훈),Jae Kyung Kim(김재경),Jae Yun Heo(허재윤),Ngoc Thang Vu(넉탕부),Ki Young Choi(최기영),Il Seop Kim(김일섭),Dong Cheol Jang(장동철) (사)한국생물환경조절학회 2020 생물환경조절학회지 Vol.29 No.4

본 연구는 원통형 종이포트를 활용한 토마토 육묘시, 염스트레스를 활용하여 고온기 도장 억제가능성을 검토하기 위하여 수행되었다. 시험구는 K₂SO₄, KCl과 KH₂PO₄을 각 5, 10 dS·m<SUP>-1</SUP>로 처리하였고, 또한, 토마토 모종에 고염도의 칼륨을 처리하여 수분 및 저온스트레스 환경에서의 적응성 및 생존성을 조사하였다. 조사결과, 처리 농도가 높아질수록 지상·지하부 건물중, 옆면적, 순동화율 (NAR)이 감소하고, 경경과 충실도는 증가하였다. 수분 스트레스 처리 이후, 대조구는 심한 위조현상을 보였지만, KCl처리구는 양호하였다. 상대수분함량은 대조구에서 23%, KCl처리구에서 8% 감소 하였다. 또한, 대조구에 비하여 KCl 처리구는 저장시(9, 12 및 15°C) 모종의 손상 비율이 낮았다. 이와 같은 결과로 보아, KCl과 같은 고농도의 칼륨 처리가 원통형 종이포트 토마토 육묘의 도장 억제에 효과적이며 환경 스트레스 내성을 향상시키는 것으로 판단된다. This study was conducted to examine the potential of inducing salinity stress on cylindrical paper pot tomato seedlings to inhibit overgrowth. Potassium fertilizers, sulfate of potash (K₂SO₄), muriate of potash (KCl), and monopotassium phosphate (KH₂PO₄), were prepared as two solutions of (5 and 10) dS·m<SUP>-1</SUP> salinity level, respectively, to investigate the influence on tomato (Lycopersicon esculentum Mill.) seedling growth. We also investigated the adaptability and survivability of treated tomato seedlings with high-salinity potassium (10 dS·m<SUP>-1</SUP> KCl) to harsh environmental conditions (water deficit, low temperature, and storage conditions). Repeated addition of high-salinity level KCl, K₂SO₄, or KH₂PO₄ markedly decreased the dry matter of shoot and root, leaf area, and net assimilate rates (NAR) but increased the stem diameter of seedlings. Among the three sources, the relative growth rate of plant height (RGRH) was most sensitive to KCl addition; increasing salinity levels of KCl solution decreased the RGRH of seedlings. The compactness, which directly reflects the stocky growth index, increased in KCl or KH₂PO₄ treatments. After a week’s water deficit, severely wilted seedlings were observed in control seedlings (untreated with KCl), but no wilted seedlings were observed in the KCl treated seedlings, and the relative water content (RWC) of the untreated seedlings significantly decreased by 23 %, while that of the pretreated seedlings only decreased by 8 %. The increase in ion leakage of KCl treated seedlings at low temperatures was less than that of untreated seedlings. Furthermore, there was far lower damage proportion on pretreated seedlings at (9, 12, and 15)°C storage temperatures after 20 days, compared with on unpretreated seedlings. Our results suggest that high-salinity potassium fertilizer, especially KCl, is effective in preventing tomato seedling overgrowth, while it also improves tolerance.

Effects of Different Application Approaches with Diniconazole on the Inhibition of Stem Elongation and the Stimulation of Root Development of Cylindrical Paper Pot Seedling

Dong Cheol Jang(장동철),Chan Xu(수찬),Si Hong Kim(김시홍),Dae Hoon Kim(김대훈),Jae Kyung Kim(김재경),Jae Yun Heo(허재윤),Ngoc Thang Vu(넉탕부),Ki Young Choi(최기영),Il Seop Kim(김일섭) (사)한국생물환경조절학회 2020 시설원예‧식물공장 Vol.29 No.4

본 연구는 원통형 종이포트 토마토 육묘시 Diniconazole의 처리방법이 도장억제 및 근권발달에 미치는 영향을 검토하기 위하여 수행되었다. 그 결과, 엽면적, LAR, 초장, 충실도, 생체중, RGR 및 R/S 에서 시험구간 유의한 차이를 보였다. 동일한 농도를 처리했을 경우, 근권부와 지상부의 흡수도 차이로 인해 저면관수가 엽면살포에 비해 도장억제에 효과적이었다. 저면관수는 엽면시비의 10분의 1의 농도만으로도, 20~30%정도의 동일한 도장억제 효과를 얻을 수 있었다. 디니코나졸 처리에의한 근권부 반응이 흥미로웠는데, 저면관수시 총근장, 근권부피, 평균 근경 및 근단수가 증가하였다. 특히, 0.3mm 이하의 초미세근이 감소하고 0.3~0.6mm의 세근이 증가하였다. 따라서 원통형 종이포트 육묘시 저면관수를 하는 것이 기존 엽면시비에 비해 사용량이 적으면서도 도장억제 및 근권부 활착률을 높힐 수 있을 것으로 판단된다. This study was conducted to compare the effects of foliar spray and sub-irrigation of the triazole fungicide diniconazole on the regulation of stem elongation and to investigate the stimulation of root system development during the seedling stage. Comparing the two application approaches, there were significant differences in the leaf area, leaf area ratio (LAR), plant height, compactness, fresh shoot and root production, relative growth rate (RGR), and root to shoot ratio (R/S). At the same application concentration, the sub-irrigation showed a better retarding effect on growth than the foliar spray, because the PGR activity of diniconazole in root absorption was higher than that in shoot absorption. For reaching a target of 20% to 30% inhibition rate of stem length, foliar application concentration of diniconazole exceeded 10 , however, only approximately 1 was required in the sub-irrigation application. The root system of tomato seedlings responded strongly to diniconazole application. Total root length, root volume, root average diameter, and the number of root tips increased when diniconazole was sub-irrigation application at 1 . A reduction in fine roots (diameter range of 0 to 0.3 mm) and an increase in the roots with a diameter range of 0.3 to 0.6 mm was observed, and this may contribute to the increase in average diameter. The increase in root average diameter may be positive because root penetration increases with root diameter. Our results suggested that sub-irrigation maximized the PGR activity of diniconazole to enhance the retarding effect. And it also possible to enhance the tomato seedling root system by diniconazole stimulating with a lower concentration.

국어교육의 근대적 전환에 대한 연구 서설 -문장 모델의 형성 과정을 중심으로-

배수찬 ( Bae Su-chan ) 한국고전문학교육학회 2005 고전문학과 교육 Vol.9 No.-

In Korea, the 20th century was not only politically critical period but also the starting point of the modern public language education. As the model of western linguistics was introduced, a new grammatic unit was formed. Moreover, Korean written language was admitted as the effective method of public communication in the first time in Korean history. But Korean written language was situated in the difficulty of not having the official position because of the characteristic of korean lingustic history. So it needed a new model at the three point as follows; the concept of language, the formation of word, the organization of sentence. Korean language education was endeavoring to be capable of carry out this problem on its own power. First of all, Korean Language(國語) or ‘Chosun language(朝鮮語)’ was established as the independent curriculum. And the contents of Korean language(國語) was formed as students could learn the words and sentences step by step on the assumption of the modern lingustic knowledge. As a result, the style of Chinese writing(漢文體) was deconstructed by the appearance of the style of half-Korean-half-Chinese writing(國漢文體). And the necessity of new sentence model designed on the phonography arose according to this trend.

廢印畵紙屑에서 銀의 回收

文壽贊 釜山工業大學校 1968 論文集 Vol.6 No.-

[발제 / 주민자치회 입법의 필요성과 일상의 민주주의] “진정한 주민자치 법안은 지방자치법 전면 개정부터”

장수찬 한국자치학회 2018 월간 주민자치 Vol.82 No.-

한국 사회의 보수-진보의 갈등구조와 정치 엘리트들의 역할 : 경험적 분석을 중심으로

장수찬(Jang, Soo-Chan) 한국NGO학회 2005 NGO연구 Vol.3 No.1

본 연구에서는 정치엘리트와 일반국민의 이념 성향을 시기별로 나누어 비교분석하고 있다. 경험적 분석은 정치 이념의 다차원적 성격을 고려하여 정치외교분야, 경제 분야, 사회문화 분야로 구분하여 측정하고 분석하였다. 그리고 엘리트의 정치이념 지형에 대한 분석을 기초로 엘리트들이 사회갈등을 봉합하고 사회통합을 이루는 역할을 할 수 있는지를 가늠하여 보았다. 주요 분석 결과는 다음과 같다. 첫째, 2002년에 비교하여 2004년에는 일반국민과 정치엘리트 모두 다소 진보적인 입장을 취하게 되었다. 특히 일반국민보다는 정치엘리트 차원에서 그 변화가 더욱 두드러진다. 이것은 17대 총선을 통해 새로운 정치엘리트들이 정당정치에 유입되었기 때문이다. 둘째, 전체적으로 정치엘리트는 일반국민에 비해 자유주의적이거나 진보적인 경향을 보인다. 특히 정치, 외교 분야에 있어서는 그 차이가 두드러지는데, 이는 ‘정치엘리트들이 단순히 사회를 반영하기 보다는 진보적 아젠다를 사회에 제기하고 이를 추동하는 역할을 한다’는 정치엘리트 역할론이 확인 되었다. 셋째, 일반국민과는 달리 정치엘리트의 이데올로기는 상당히 높은 내부적 일관성과 안정성을 보이고 있다. 또한 일반인들이 주로 중도에 몰려 있는데 반해, 정치엘리트의 이념은 상대적으로 대립적인 지점에 분포되어 있다. 본 논문의 분석 결과에 따르면, 정치엘리트들의 이데올로기적 분포는 크게 대립적이지 않다. 따라서 정치엘리트들의 이데올로기적 분포만을 고려한다면 정치엘리트들이 사회적 갈등을 봉합하고 사회통합에 기여할 수 있는 것으로 판단된다. 그러나 정치엘리트들의 대중동원 정치의 필요성과 엘리트 내부문화에 신뢰가 정착되지 못함으로 인해 정치엘리트들이 사회적 갈등을 확대재생산 하는 역할을 하는 경향이 강하게 나타나고 있다. This paper is designed to do an empirical analysis of the ideological orientation of the political elite and common citizens (laymen). This analysis is carried out in three different sectors considering political-diplomatic, economic, and social issues. The empirical conclusions are as follows: First, the political elite appeared to be more progressive more than commons citizens, particularly concerning politicaldiplomatic issues. The political elite seemed to play a critical role in initiating and promoting a liberal agenda regarding political-diplomatic issues. Surprisingly, however, the political elite tend to be more conservative regarding economic issues when compared with common citizens. Second, both the elite and common citizens take more progressive positions on various issues as time passes. In particular, the elite made much greater progress than did common citizens. Third, unlike common citizens, the elite demonstrated ideological coherence and consistency across different time periods and issue sectors. The elite are much more divisive than citizens in terms of ideological distribution. According to the empirical analysis, the ideological confrontation across different political parties is not severe, so that political elites are expected to play a critical role in bringing people together, but it turns out not to be the case. After the democratic transition in South Korea, political elites has become to have a strong tendency to appeal· the mass by taking extreme positions. Populist politics is likely to enlarge social conflict rather than build up social consensus.

Test Observation of Korean Solar Radio Burst Locator

봉수찬,조경석,황보정은,문용재,박영득,Dale E. Gary,Gelu M. Nita,Zhiwei Liu,이정우,이대영 한국천문학회 2007 天文學會報 Vol.32 No.2

읽기 이론의 역사적 변천에 대한 연구

배수찬 ( Su Chan Bae ) 국어교육학회 2004 國語敎育學硏究 Vol.21 No.-