Efficient Plant Regeneration from Shoot Tip and Young Leaf in Rhodiola sachalinensis A. Bor.

Chi,Hyung-Joon,Yoon,Jae-Ho,Yang,Deok-Chun,Song,Won-Seob 한국자원식물학회 2003 Plant Resources Vol.6 No.3

The shoot tip and young leaf of Rhodiola sachalinensis were cultured to invest the plant growth regulator condition for callus induction, shoot and root regeneration. When the shoot tip was sterilized in 2.0% of NaOCl for 20min., the contamination rate was the lowest. And the survival rate of the culture material was good in carbenicillin 500mg/L treatment group. Callus was obtained from shoot tip and young leaf segments. NAA 0.1-1.0mg/L and 2,4-D 0.1-0.5mg/L alone treatment were shown to have a good response on callus induction from shoot tip culture. In the case of young leaf culture, NAA and 2,4-D 0.1-0.5mg/L alone treatment were good in callus induction. In culturing shoot tip NAA 0.5mg/L and BA 0.5mg/L, NAA1.0mg/L and BA 0.lmg/L combination treatment was good in shoot regeneration. The regenerated shoots were rooted on MS medium supplemented with NAA and BA combination treatment. Especially, NAA 1.0mg/L and BA 0.1mg/L combination treatment was effective for root regeneration.

일 도시 여고생의 음주관련 요인에 관한 연구

김주형,김은경,김효정,문현숙,오선민,박나경,신혜정,이경원,이지선,최연옥,최진희,한유정,현수인 대한간호학회정신간호학회 2002 정신간호학회지 Vol.11 No.1

This study was designed to examine the factors associated with alcohol consumption among the Korean high schools girls. 283 female students were sampled from two high school in Seoul, Korea. They were given questionnaires and were asked to fill in and return them during a class hours. The factors included in the questionnaire were analyzed to see their contributions to alcohol consumption using chi-square. Alcohol consumption was associated with lower school performance(p=.001). High alcohol expectancies increased alcohol consumption(p=.000); however, depression did not show a statistically significant relationship to alcohol consumption. Mothers' alcohol consumption, having many alcohol consuming friends and watching TV commercials picturing alcohol were found to be associated with alcohol consumption, p=.049, .000, .000. respectively. Results may imply that alcohol consumption may not be a coping behavior of the depressed high school girls. Parents in Korea should be more concerned about alcohol consumption and its impacts on their daughters. Media effects on alcohol consumption need to be stressed and deserve attention from the public.

Angelica gigas Nakai 成分의 藥理學的硏究

池亨浚 忠南大學校 1962 論文集 Vol.2 No.-

Two crystals were obtained from ether extract and saponificated Ether extract of root of Angelica gigas Nakai commonly called "TANG-GUI" in Korea. One crystal (m.p. 110-111℃) which was suggested as coumarine derivative was separated from ether extract of dried root. (Substance A) The other crystal (M.p. 178℃-180℃) which showed furo-coumarine reaction was separated from the saponificated ether extract. (Substance B) The general pharmacological effects of crystal (Substance A) and etherextract (Extract A) were studied and compared, and the following conclusions were obtained: LT50 of Subtance A is 382㎎/㎏., when given to mouse intraperitonially. Motility of excised intestine and uterus of rabbit was augmented by the treatment of Substance A, while Ertract A is inhibitory in same cocentration. Blood pressure of rabbit was elavated by Subtance A and A Extract Extract A stimulated the respiration of rabbit, but Substance A did not show any effect on respiration.

다발성 전이 양상을 보인 경부의 평활근육종 - 증례보고

최치훈, 이동욱, 송형근 충북대학교 의학연구소 2016 忠北醫大學術誌 Vol.26 No.2

본문참고

(57)Fe Mossbauer 효과에 의한 단결정의 전기장의 기울기 (EFG)에 관한 고찰 : (Na₂[Fe(CN)??NO]ㆍ2H₂O

홍치유,김형상 동국대학교 자연과학연구원 1994 자연과학연구 논문집 Vol.14 No.-

The problem evaluating the electric field gradient (EFG), asymmetry parameter and Debye-Waller factor by analyzing of the Mossbauer single crystal spectrum in resonant nuclear was discussed. This method can be described by calculating the partially polarized absorption cross section ratio dependence of the non-polarized γ-ray direction. Especially in disodium pen-tacyanonitrosyl ferrate dihydrate (SNP) crystal the example can be shown that the evaluation of the effective thickness is calculated by direct transmission integral and indirect resonant absorption area from Lorentz-curve.

전산화 단층촬영술을 이용한 악하선 타석증의 진단

구치균,이종갑,이제호,최형준 大韓小兒齒科學會 1998 大韓小兒齒科學會誌 Vol.25 No.3

Sialolithiasis is the formation of calcareous concretions within ductal system of a major or minor salivary gland. They are formed by deposition of calcium salts around a central nidus which may consist of desquamated epithelial cells, bacteria, foreign bodies, or products of bacterial decomposition. An ll-year-old boy complained of pain during meals and intermittent mild swelling in the right submandibular region. Although it was not detected in true occlusal radiograph. panoramic radiograph showed a round radiopaque mass 3mm in diameter. Computed tomography (CT) was taken for locating the stone and 3-dimensional reconstruction was per-formed . Under general anesthesia, sialoadenectomy was done through extraoral approach. diagnosis of submandibular sialolithiasis using high-resolution CT with reconstructions was helpful for surgical decisions, namely radical removal of the submandibular gland and its duct.

부분구속 접합된 철골보의 신뢰성 해석에 관한 연구

이치형,김해수 동의공업대학 2001 論文集 Vol.27 No.1

The reliability of partially restrained connections is dependent on the variability in the moment-rotation characteristics. In this study, the moment-rotation relation is adopted by power model considering three parameters. Probability distribution functions of three parameters reliability indices are calculated by structural reliability analysis. Limit state equation on the moment-rotation relation of partially restrained connections of steel beam in non-sway steel frame is presented. In order to provide target reliability index by changing coefficient of variance of random variable, advanced first-order second moment method is applied. The results by this method are compared with those by Monte-Carlo method.

英祖初年 全州와 大邱邑城 築造工事 硏究 : 새로운 城制 및 공사방식을 중심으로 Especially on the new systems and the constructional methods of castle

조형래,서치상 대한건축학회 2005 대한건축학회논문집 Vol.21 No.3

Through investigations of early 18th century southern provincial castles, Jeonju and Daegu Eupsung, this study seeks to broaden the understanding of castle construction of the later period of Korea's Yi Dynasty. The Japanese invasion of 1592 raised the awareness of the importance of national defense infrastructure. In this process, Eupsung, provincial castles, came to occupy special importance, and many of them were repaired, redesigned or even entirely rebuilt. Based on new conceptual framework, reform-minded kings and their associates led these efforts of national defense system building. As result, new administrative systems of financing, building and maintaining the provincial castles were established. This study demonstrates that Jeonju and Daegu Eupsung, the provincial castles built during the early years of King Young-Joe were based on those new concepts and systems of the new age. The study shows that the designers of these castles had in mind efficient construction design and execution and effective defense of provincial towns located on flat ground. And, the study explains how those original designers sought higher productivity through greater localization of securing resources and more detailed and improved organization of construction responsibilities. In short, this study seeks to prove that the provincial castles of the early 18th century reflected the new thinking on practicality that was spreading throughout the society of Yi Dynasty at the time. And, it tries to contribute to greater understanding on how castle building evolved prior to the construction of Hwa-sung during the late 18th century, the pinacle of provincial castle building of Yi Dynasty

생산셀 설계와 셀 배치계획을 위한 계층적 접근

김장형,문치웅 濟州大學校工科大學産業技術硏究所 1995 尖端技術硏究所論文集 Vol.6 No.-

This paper is a hierarchical approach for manufacturing cell design and cell layout planning in flexible manufacturing environments. To solve this problem, the proposed model incorporates relevant manufacturing factors such as workload and cell size. Based on those information, to form the manufacturing cell, correlation similarity coefficient(CSC) between machines are calculated and a pair of machines that has the highest value of CSC is assigned to a machine cell. Repeat the above steps until the adequate manufacturing cells are obtained. Because the obtained cellular structure for the manufacturing system design in the previous stage does not give the layout of the cells on the site directly, it is important to determine the adequate cell layout. For the cell layout planning, the adjacent relationship among cells are determined on the basis of the degree of interference among cells which is evaluated by the volume of the intercellular movements among cells. The relationship obtained by this procedure determines the configuration of the cell layout. Finally, a system is developed to increase the efficiency of a proposed model. The proposed model and system are illustrated by a numerical example.

1731년의 東萊邑城 修築工事에 관한 硏究

조형래,서치상 대한건축학회 2004 대한건축학회논문집 Vol.20 No.12

The objective of this study is to investigate the architectural value of Dongrae Eupsung(a province castle) that had been built in 1731, especially the systems of castle, construction process, organizations and situation of labor mobilization in the early 18th century After suffering from the Japanese invasion(1592), the importance of having defensive facilities at the castle had been raised As the result, some of province castles including Dongrae had been built according to the new concepts of defense The organization of construction was under the supervision of military officials and local authorities The construction was accomplished with mobilization of compulsory labor, farmers and laboured monks, and some casual laborers Although the number of casual laborers was not many, it is important that they had participated in local construction by government The group of monks was believed to play an Important role in the project as professional builder controlled by their own system In conclusion, the study has shown a provincial situation of construction in 18th century, more study is necessary to know about construction conditions and methods in the late period of Chosun dynasty