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      • 저온처리한 Georgia lily의 촉성재배에 관한 연구

        全在琪,崔尙台 慶北大學校 1971 論文集 Vol.15 No.-

        Bulbs of the Georgia lily were planted and cooled under natural conditions in a cold frame. Other bulbs were precooled at 4-8℃. These bulbs were transplanted in a vinyl house varying the planting periods. Some of these bulbs were exposed to incandescent lights for experimental purposes. The bloom date, bloom rate, number of flowers, stem length, and number of leaves were recorded to study the effects influenced by the bulb weights and transplanting periods. Plant growth during normal growing season was also recorded. The results were as follows. 1. Naturally cooled Georgia lilies transplanted on Dec. 5 and Dec. 30 were among the first to bloom. Therefore, the Georgia lily may be planted in December, after chrysanthemums and other plants harvesteod from the same vinyl house. 2. The bloom rate and number of flowers increased in large bulbs. Stem lenghts were elongated considerably when the Georgia lily was transplanted earlier and larger bulbs were used. 15g-bulbs transplanted on Dec. 30 were 93.8% in bloom rate with 1.5 flowers and 54.5㎝ in stem lengths. 3. The leaves were more numerous when larger bulbs were planted and not influenced by the transplanting periods. 4. From the above results, it can be determined that 15g-bulbs of Georgia lily showed considerable growth effect when cooled naturally and growth is induced in a vinyl house. Therefore, forcing 15g-bulbs for cultivation is possible. 5. The weight of developed new bulbs was increased when transplanted earlier. 6. Precooling and lighting affected the earlier blooms, and the stem lengths were increased by lighting. 7. Internode was noticeably elongated as soon as the leaves emerged without rosetting of foliage on the precooled Georgia lily.

      • 漢川 유역의 植物相

        전재인,신상천,강경아,이종운 嶺南大學校 基礎科學硏究所 1993 基礎科學硏究 Vol.13 No.-

        하천 휴식년제 실시에 따른 자연 생태계 조사의 일환으로 한천 상류 15km 구간의 육상과 수계의 식물상 조사를 실시하여, 하천 휴식년 초기의 상태를 파악하고자 하였다. 전 조사 지역에 걸쳐 66科 160屬 193種 30變種 1亞種이 출현, 총 225種類의 육상 관속 식물이 관찰되었고, 상류로 갈수록 목본 식물의 출현이 증가하여 자연 식생과 유사하였으며 하류로 갈수록 귀화 식물이나 노변식물(Ruderal plant)의 출현이 증가하였다. 7科 13屬 14種이 출현한 귀화 식물로 본 한천의 都市化指數(UI)는 6.6%로서 아직 인간에 의한 간섭 정도가 낮음을 의미하였다. 수생 식물은 2科 3屬 4種이 기록되었고 주로 하류 지역에서 발견되어 아직 수질의 오염 정도도 낮은 것으로 나타났다. For the detailed description on the early stage of Han-stream resting years, terrestrial and freshwater flora along 15 km upper stream was investigated. 66 families, 160 genera, 193 species, 30 varieties and 1 subspecies, as a whole 225 sorts of terrestrial tracheophytes were observed in this valley and distributed more woody plants upwardly, more neophytes and ruderal plants downwards. Neophytes of 7 families, 13 genera, 14 species indicated 6.6% of Urbanization Index and shows low human interruption. 2 families, 3 genera, 4 species of observed hydrophytes in the downstream indicated also low water pollution.

      • 授乳期 女性의 營養知識 및 授乳態度에 관한 硏究

        田玉蓮,金聖美 啓明大學校 生活科學硏究所 1990 科學論集 Vol.16 No.-

        The purpose of this study is to grasp nutrition knowledge and lactation attitudes of mothers in lactation now and to be basic data which encourage breast-feeding in future. The subject of this study was 106 mothers of infant in lactation until 15 months old after delivery in Daegu Area (Naedang-dong,Sungdang-dong)and Dalsung Area (Hyeonpoong-myeon,Yuga-myeon, Guji-myeon.) All participating mothers of infant were randomly chosen. The time of this study was conducted from January 5th to January 25th,1988. The method of this study was that the researcher visited with mothers of infant and interviewed with them using questionaire. The collected materials were analyzed using frequency distribution,percentage,mean,X²test (Chi-Square)and F-test. The results of this study were as follows ; 1. Conducting the F-test,the score of nutritional knowledge according to age, educational level and monthly incomes showed significant differences. The score of nutritional knowledge was shown to be high among older mothers, the well-educated, city-dwellers and people with high incomes. 2. In lactation patterns according to the score of nutritional knowledge, the groups with the lower score gave their infants breast-feeding, whereas higher scoring groups provided them with bottle-feeding. 3. The sources of information about nutition knowledge and weaning did not show significant difference between division of ages and education levels. 4. In educational level and resident area of mothers, the educational level of country dwellers was low, whereas the educational level of city-dwellers was high. 5. In lactation patterns according to mothers'age, the groups who were younger than 25years old gave their infants breast-feeding, whereas the groups who were older than 30years old provided them with bottle-feeding. 6. In lactation patterns according to educational level,the groups who had lower education gave their infants breastfeeding, whereas the higher educated mothers provided them with bottle-feeding. 7. In lactation patterns according to resident area, countrydwellers gave their infants breast-feeding, whereas city-dwellers provided them bottle-feeding. 8. In lactation patterns according to monthly income,the lower income groups seemed to have breast-feeding, whereas the higher income groups seemed to have bottle-feeding. 9. The time of onset of the weaning was found to be earlier in the old aged, the higher educated and city-dweller groups. 10. The time of the termination of the weaning was found earlier in higher educated, city-dweller groups.

      • 냉장고용 폴리우레탄 발포체의 재활용에 관한 연구

        전종한,신성희 大田産業大學校 1996 한밭대학교 논문집 Vol.13 No.1

        The recycled polyols by the depolymerization of the waste PU foam for refrigerator insulation obtained. The depolymerization was experimented with glycols such as EG and PG. The rigid PU foams were manufactured by Polyols of both virgin and recycled polyols at various mixing ratios and their properties were characterized. Faster reactivity in the synthesis of PU foam was shown with increasing contents of the recycled polyol in the mixed Polyols. The thermal insulation of PU foams by mixed polyols of virgin/recycled polyols was increased but the compession strength was slightly decreased.

      • 중등학교 GIS교육의 실태와 개선에 관한 연구 : 교사의식 조사를 중심으로

        성춘자 남서울대학교 2005 남서울대학교 논문집 Vol.11 No.1

        The survey conducted on the korean high school teacher indicates that GIS is needed as a tool for Geography education. However, in practice, the knowledge and functionality of GIS are not enough to employ it at the class room. Most of the respondents replied that the GIS education is not well taught. Prioritized reasons for that are as follows: inadequate of GIS education environment, lack of GIS knowledge of teather, insufficient class hours, inadequate of materials contents. Currently In hereafter, in order to carry out GIS education better way at the high school, the followings are needed. First, To GIS education required hardware and software, as well as social laboratory with various spatial data should be prepared. Second, various types of education programs and systematic supports in order to retraining the high school teachers should be conducted. Third, curriculums of all subject related to education of GIS need to be reconfigured.

      • SCOPUSSCIEKCI등재
      • J-酸의 Coupling反應에 關한 硏究

        全相文 忠州大學校 1977 한국교통대학교 논문집 Vol.10 No.2

        검수 수정 In order to measure the reactivitg of J-acid (6-emino-1-naphthol-3-sulfonic acid) with aromatic diayo compounds p-diayothluene (I) or p-diayo chlorobenyene (II) were competitiuely Coupled with J-acid and NW acid (1-naphthol-4-Sulfonic acid) at different PH. All the dyes in the products were separated by means of paper dhromatography and the yields were detemined colorimetrically. From mole ratios of the dyes formed, the relative ratios of apparent rate constant ?OH/?NW and ?NH₂/?NW (Subscripts, OH₂NH₂ and NW represent the coupling reacitions at 2-end 5-position of J-acid andn 2-position of NW acid respectively)were determid. The relative ratios of real rate constants ?OH/?NW and ?NH₂/?NW of the coupling reactions were estimated brom apparent trlative rate constants and pka values of J-acid and NW acid with the assumption that the coupling component react as naphtolate ions and the bree amine. ?NH₂/?NW were 85.8 with I and 212 with II when the PH was lowes than 7. Although ?NH₂/?NW shoued be independent of the pH of the nedium, it decreased at higher pH region. On the other hand, ?NH₂/?NW incre ased with PH. The latter behavior could be explained by the bact that two species, that is, the naphtholate ion form and the naphthol borm are related with the coupling reaction of 5-posltion of J-acid. The relative rate constants ?NH₂/?NW of the naphthal borm and ?NH₂/?NW of the naphtholate borm were 0.05 and 0.3 with I and 0.05 and 0.25 with II respectively.

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