Plant Regeneration and Bulblet Formation of Allium wakegi Araki

Song,Won-seob,Yang,Deok-Chun,Yoon,Jae-Ho,Ryu,Sang-Hyun 한국자원식물학회 2004 Plant Resources Vol.7 No.1

Allium wakegi was cultured shoot tip in the condition of light culture. The Allium wakegi added plant growth regulator was observed of plant regeneration and bulblet formation. Callus Induction and growing rate was the best of 78% when added alone 2,4-D 0.5mg/L. In the formation of shoot, its regeneration rate was 96% when added BA 0.5mg/L in the light culture condition. When BA 0.5mg/L and NAA 0.5mg/L mixed and BA 0.5 mg/L and NAA 1.0mg/L mixed, the rates were 99% and 97% respectively, and these conditions were suitable for forming shoot. In the formation of roots, when added NAA 2.0mg/L in the light culture condition, the regeneration rate was 90.6 % and the roots were abnormal. When added NAA 1.0mg/L, the rate was 82 % and the highest. In the formation of bulbs, when BA 05mg/L and NAA 1.0mg/L mixed, the root generantion and its size in the bulbs was the best compare to other treatment experiments.

압출성형에 의한 국산 무연탄 활성탄의 세공구조 변화

이송우,문장천,김도한,이창한,최동훈,류동춘,송승구 부산대학교 환경문제연구소 2000 環境硏究報 Vol.18 No.-

The purpose of this study is to investigate the variation of pore size distribution of the coal-based extruded activated carbon. The extruded activated carbon was prepared by extruding the mixture of coal powder and coal tar. Pore size distribution of the extruded activated carbon was compared with that of the extruded coal and the extruded char. Also it was compared with that of the crushed activated carbon, raw coal and char. The extruded coal had coarser surface than that of raw coal. Macropores of the extruded coal were funned near 10,000Å in diameter during carbonization process and steam penetrated easily between particles and were growing between 3,000Å and 20,000Å in diameter during activation process.

宗敎社會學의 新進化論的 分析 : Robert N. Bellah의 입장을 中心으로 Centering on Robert N. Bellah's standpoint

宋天恩 圓光大學校 1982 論文集 Vol.16 No.1

This is to explore the real nature of neo-evolutionism and it's place in socioloty of religion mostly through the ideas of Robert N. Bellah. Bellah's conceptions of religious evolution can be summarized as follows. Religious evolution is 1) neither ethical or truthful progress nor beautiful or better one 2) the progress of adaptation capability to outer or inner environment or of autonomy and freedom as well as that of function and technology. Accordingly in general the evolution is the progress of efficiencies. 3) not metaphysical theory but empirical one. 4) the progress of differentiation from simple to complex, and from one to different. 4) that there are some differences in properties and possibilities between simple and complex, one and different. 6) inevitable and irreversible and that it does not follow any particular course. Therefore evolution is not necessarily uniform but can be diverse. And we should admit that there are possibilities of stagnation, recess, and mingling in religious phenomena. Accordingly multilineal evolution theory should be emphasized. 7) not applicable to every sociocultural phenomnon. 8) functional evolution theory accepting functional and diffusionist viewpoints. And the positive characteristics of Bellah's classification of religious evolution can be indicated as follows. 1) Religiousity is general phenomenon through the ages. 2) The transformation processes of all the history of religions are generalized and classified distinctively. 3) The general wvolution theory of religion independent of the bias of classical evolutionalism is persuasively attempted with the examination of all the stages of religious history. But the negative aspect is the tendency of applying the patterns of contemporary western culture to the total societies somewhat forcibly.

아파트 單位平面의 住居規模 適正化를 위한 基礎모델에 관한 硏究 : 釜山市 國民住宅規模 아파트를 中心으로 With a National Housing-size Apartment in Pusan

송대호,정성규,박춘근 동아대학교 건설기술연구소 1996 硏究報告 Vol.20 No.1

This study is purposed to propose the basic model for calculation of the proper dwelling size, which is suitable to the conscious structure and form of the dwelling life of Korean, in planning the unit plan with a national housing-size apartment after this. It limits the factors which effect the dwelling size(Y) to general household characteristic of dweller and the activity of dwelling life. It clears the formula by regression model in the relation between these factors and dwelling size(Y). The results is follows ; 1) Y(X_(8)) = 1.55397(FF2)+1.08807(FF3)+0.62683(FF1)+18.89860, estimate ability of this formula comes into 23.6%. 2) Y(X_(8)) =0.99396(BB1)+0.43160(BB3)+0.33118(BB2)+0.34311, estimate ability of this formula comes into 28.5%. This study tries estimating the dwelling size(Y) not by the degree of satisfaction, but the aquirement marks of the exclusive dwelling-ratio in part. But the study is elementary in estimating the dwelling size(Y) and vary estimations are expected in the method of study. Thus the study is necessary to be achieved lastingly in the propriety of interpretation the value of dweller's degree of satisfaction.

韓 ·日 兩國의 初等社會科 歷史敎材의 比較硏究 : On the Historical Materials of the 6th Grade 6學年 國史敎材를 中心으로

宋春永,裵漢極,原田智仁 大邱敎育大學校 1993 論文集 Vol.28 No.-

圓佛敎學 硏究의 方法

宋天恩 圓光大學校 圓佛敎學硏究會 1978 圓佛敎學硏究 Vol.8 No.-

老朽아파트 再建築에 따른 住居環境評價에 관한 硏究

송대호,박춘근 동아대학교 건설기술연구소 1997 硏究報告 Vol.21 No.1

This study is related to the rational improvement plan according to the dwelling environment estimation factors when detoriorated apartment complexes is reconstructed. The results is follows: (1) External environment in this detoriorated apartment complexes is proved generally very bad condition with physical wornout condition of the building. Especially, it is proved that parking lot and green space, dust facilities, etc are lacked commonly. (2) When we synthesize the recognition degree to the dwelling environment. it made an analysis that dwellers have been estimate the most factors at the green space and physical facilities or deterioration of the building and EV·stairway, dwellers' demands are changing to apartment complexes environment from the investment worth concept at house basis in the past. (3) As reconstructed, In preference on improvement of deteriorated apartment complex, It values middle story type above ratio of capacity increase in higher story type and higher density type. And Unit residence has to connect a green tract of land and open space. Also Convenient facilities has to expand. Finally, there is limit that estimate basic factors about dwelling environment established inclusively in this study, unsatisfying with exactly the solve of cause in the factors. So, it is required that the study (which can receive variety changing factors) is continuing for Oaccumulating this estimation data.

다구찌 실험계획법을 이용한 드라이 선삭가공의 최적 가공조건 선정

송춘삼,김준현,김주현 한국공작기계학회 2003 한국공작기계학회 추계학술대회논문집 Vol.2003 No.-

Recently, various efforts to make more speedy and precision machine tool to improve productivity and also various efforts to solve environmental problem are going on, so that dry cutting in manufacturing industry, which needs environmental conscious design and development of manufacturing technique, is becoming a very important assignment to solve. Because dry cutting does not use cutting fluid, we need other methods that can be used instead of cutting fluid, which does cooling, lubricating, chip washing, and anti-corrosion. Especially, because turning is a continuous work, the consideration of tool life and surface roughness due to continuous heat and poor lubrication is important. The purposes of this paper are the consideration of how well the compressed air can work instead of cutting fluid, and also the development of the method to select the optimum machining condition by the minimum numbers of experiments through the Taguchi method.

아파트 단위평면의 구성면적변화에 따른 거주후 평가(POE)에 관한 연구

송대호,장승재,박춘근 동아대학교 공과대학 부설 한국자원개발연구소 1995 硏究報告 Vol.19 No.2

The study is presented the model by Stepwise Multiple Regression Analysis, practiced Post Occupancy Evaluation with factor which is to be considered for the change of constituent area after grasping change of constituent area. Apartment unit plan composition is classified in private space, public space, supporting space. The results are as follows: Total constituent area ratio of the existing plan was 39.5 : 40.8 : 19.7 and dwelling consciousness one was 36.4 : 44.0 : 19.6. Compared private space with public space, public area requested increase rather than private area. The Multiple Regression formula between each factor and the constituent area is represented to by HY(Cl)=0.3118+0.52483(C2)+0.28383)C3)+0.10922(C6), but estimate ability of this formula comes into 53.3%.

방사선 치료후 시간경과에 따른 염색체이상 빈도의 변화

송명재,하성환,이춘자,김희근,김미숙 대한방사선 방어학회 1994 방사선방어학회지 Vol.19 No.1

임파구의 염색체이상 빈도로부터 피폭자의 흡수선량을 구하는 방법은 사고로 인해 급성피폭을 받는 경우 유용하게 사용될 수 있다. 그러나 방사선 피폭 후 시간이 경과함에 따라 불안정 염색체이상을 가진 임파구는 감소하게 된다. 이에 방사선 치료후 시간 경과에 따른 불안정 염색체이상 빈도의 변화를 규명하고자 한다. 전골반에 50.4 Gy의 방사선 치료를 받은 총 20명의 자궁경부암 또는 자궁내막암 환자를 대상으로 41개의 검체를 얻었다. 채혈의 시기는 방사선 치료후 1일 3주, 6주, 12주, 24주, 52주, 104주, 156주, 208주, 520주로 하였다. 이들 말초혈액의 임파구에 대해 전혈미세배양을 실시한 후 임파구의 불안정 염색체이상을 관찰하여 Ydr, Qdr, Qdra를 얻었다. Ydr 값은 방사선 치료가 끝난 직후부터 3주까지 plateau를 보였고 이후 감소하는 경향이었다. Ydr의 평균값은 치료후 3주에 0.29에서 급격히 감소하여 2년후 0.05로 감소하였으며 이후 5년까지 서서히 감소하였다. 회귀분석을 실시한바 Ydr = 0.259×exp(-0.0429T)+0.0560×exp(-0.00106T)(time in weeks)로 나타났다. Qdr값은 치료 직후부터 24주까지 1.51 전후로 거의 변화가 없었으며 이후 감소하여 52주 이후에는 1.17 전후로 거의 일정하였다. Qdra 값은 치료 직후부터 12주까지 1.10 전후이며 이후 감소하여 52주 이후에는 0.81 전후였다. 피폭 후 시간경과에 따른 Ydr 값의 감소는 두 component exponential 모델을 잘 맞고 이 식을 이용하여 생물학적 선량측정이 가능하다. Qdr 값 및 Qdra 값은 피폭후 시간경과가 짧은 경우 피폭선량을 추정하는 지료로 사용할 수 있다. It is good method to use frequency of chromosome aberration in lymphocytes for a biological dosimetry in cases of accidental exposure to radiation. But in cases of past edposure, biological dosimetry is limited because the friquency of aberration decreases by time after exposure. To provide a basic data for estimationof past radiation exposure, the changing pattern of frequency of unstable chromosome aberration by time interbal after exposure was studied. Observation was made on peripheral lymphocytes of 41 blood samples from 20 patients treated for uterine cervical carcinoma and endometrial caricinoma. The patients received 50.4 Gy radiation to whole pelvis. Elapsed times after the completion of radiation therapy were 1 day, 3, 6, 9, 12, 24, 52, 104, 156, 208, 260 and 520 weeks. All the blood sample were microcultured. The Ydr, Qdr and Qdra were calculated form frequency of unstable aberration. Ydr did not decrease for 3 weeks after radiation therapy, and thereafter, decreased very rapidly and reached 0.05 at two years after radiation therapy and decreased very slowly until 5 years after radiation therapy. Relationship between unstable chromosome aberration and time interval after radiation therapy was described as Ydr = 0.2590.259×exp(-0.0429T)+0.0560×exp(-0.00106T)(time in weeks) Qdr remained constant at 1.51 until 24 weeks after radiation therapy and then decreased to 1.17 at 52 weeks. Therafter, it did not change. Qdra remained constant at 1.10 for 12 weeks after radiation therapy and decreased to 0.81 at 52 weeks. Thereafter, it remanined constant. Two superimposed exponential Ydr disappearance rate wuggests that it is possible to calculate the past exposure dose. When the elapsed time after exposure is short, Qdr and Qdra are useful papameters for biological dosimetry for past radiation exposure.