• 한국신뢰성학회:학술대회논문집
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• 한국신뢰성학회 2000년도 추계학술대회
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• pp.269-277
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• 2000

The component reliability database is required in PSA (Probabilistic Safety Analysis) for NPP (Nuclear Power Plant). We have applied a generic database to the PSA for the Korean NPPs, since there is no specific component reliability database. Therefore we are developing the plant-specific component reliability database for domestic NPPs. We also extend the experience and knowledge of PSA and component reliability database for NPP to chemical industry We collect the raw data like component operation history and maintenance history and then input the required data for the component reliability database through failure analysis. With the database, we can not only perform PSA with real data but also perform maintenance optimization.

• 식물조직배양학회지
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• 제28권3호
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• pp.147-151
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• 2001

Explants of Lactuce sativa cultivar, chungchima, were co-cultivated with Agrobacterium tumefaciences LBA4404, EHA101 strains containing nptll gene and ferritin gene encoding iron storage protein from soybean for transformation. Through initial selection of regenerated explants by culturing on a kanamycin and carbenicillin containing MS medium, multiple shoots were obtained after 2 months of culture. For a complementary step of selection, putative transgenic shoots were transferred to 1/2 MS basal medium supplemented with 100 mg/L kanamycin and 500 mg/L carbenicillin. The selected shoots were tested with PCR analysis using nptll, ferritin specific primers whether ferritin gene was introduced to genome of the plants. These results confirmed that produced the specific PCR bands in the putative transgenic lines. Additionally the Northern blot showed that transcripts of ferritin gene were detected in mature leaf of the transgenic lines. These results suggest that ferritin gene be successfully integrated and transcribed in the putative transgenic lettuce plants.

• 한국식물학회:학술대회논문집
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• 한국식물학회 1987년도 식물생명공학 심포지움 논문집 Proceedings of Symposia on Plant Biotechnology
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• pp.283-307
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• 1987

Glycinin and $\beta$-conglycinin are the most abundant storage protein in soybean. These proteins are known to be synthesized predominantly during germination and cell expansion phase of seed development for short period, and synthesized not in other tissues. Genes encoding these storage proteins are useful system to study the mechanism of development stage and tissue specific gene expression in eukaryotes, especially plants, at the molecular level. The cDNA and genomic clones coding for glycinin have been isolated and regulation mechanism of the gene expression has been studied. Initially, development and tissue-specific expression of the glycinin gene is regulated at the level of transcription. Post-transcriptional processing is also responsible for delayed accumulation of the mRNA. Translational control of the storage protein gene has not been reported. Post-translational modification is another strategic point to regulate the expression of the gene. It is possible to identify positive and/or negative reguratory clements in vivo by producing transgenic plants agter gene manipulation. Elucidation of activation and repression mechanism of soybean storage protein genes will contribute to the understanding of the other plant and eukaryotic genes at molecular level.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1996년도 춘계학술발표회논문집(2)
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• pp.643-648
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• 1996

Recent failures of Heat Transport (HT) system Liquid Relief Valves (LRVs) at several CANDU 6 plants resulted in heavy water spills. A multi-discipline KAERI task team along with AECL representatives was set up to assess the specific implications on the Wolsong 2/3/4 station. The study applied the knowledge gained from the generic study by conducting a fundamental review of the specific design of Welsong 2/3/4. The purpose of the study was to demonstrate compliance with the relevant codes and licensing regulations and to identify the improvements to the design and operating procedures applicable to Wolsong 2/3/4. This paper presents the key recommendations of this study.

• 한국환경생태학회지
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• 제21권1호
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• pp.38-46
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• 2007

본 조사지역인 모악산 도립공원일대의 관속식물상은 120과 383속 542종 1아종 69변종 3품종으로 총 615종류가 확인되었다. 이중 특산식물에는 개비자나무, 지리대사초, 털중나리, 키버들, 병꽃나무, 벌개미취까지 6종류가 출현하였으며, 희귀식물에는 말나리(보존우선순위; 159번), 뻐꾹나리(97번), 꽃창포(197번), 쥐방울덩굴(151번), 태백제비꽃(202번)까지 5종류가 확인되었다. 또한, 식물구계학적 특정식물종에는 V등급에 식재종인 왕벚나무가, IV등급에 진퍼리사초, 등나무가, III등급에 꼬리조팝나무, 차나무, 갈퀴아재비 등 4종류가, II등급에 말나리, 꽃창포, 복자기 등 8종류가, 그리고 I 등급에 거미고사리, 상산, 올괴불나무 등의 33종류까지 총 48종류(7.8%)가 확인되었다. 귀화식물로는 15과 40속 48종 2변종으로 총 50종류가 조사되었으며, 귀화율은 전체 615종류의 관속식물 중 8.1%로 분석되었다. 보전방안으로는 무분별한 개발 행위와 과도한 탐방객 증가를 억제하는 대책과 자연휴식년제와 같은 세부적인 계획수립이 요망된다.

• 한국자원식물학회지
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• 제20권5호
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• pp.375-382
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• 2007

본 연구는 석불산 일대의 관속식물상과 식생을 조사하여 식물종의 분포 양상을 알림으로서 식물자원의 효율적 이용에 일조하고자 수행한 바 다음과 같은 결론을 도출하였다. 석불산 일대의 관속식물상은 96과 249속 293종 2아종 43변종 3품종 1재배종으로 총 342종류가 확인되었다. 희귀식물에는 나도개감채(보존우선순위; 169번)와 쥐방울덩굴(151번)이 확인되었으며, 특산식물에는 민땅비싸리, 산철쭉, 개나리(식재종), 병꽃나무, 개비자나무, 지리대사초, 은사시나무(식재종)가 확인되었다. 식물구계학적 특정식물종에는 V등급과 II등급에 해당하는 식물은 출현하지 않았으며, IV등급에는 등나무가(식재종), III등급에는 나도개감채, 단풍나무가, I등급에는 개비자나무, 민바랭이새, 굴참나무, 참느릅나무, 송악, 쥐방울덩굴, 산돌배, 예덕나무, 물오리나무, 말오줌때, 동백나무(식재종), 거지덩굴, 장구밥나무, 정금나무, 큰엉겅퀴로 총 18종류가 확인되었다. 귀화식물에는 11과 26속 32종 2변종으로 총 34종류가 확인되었으며, 귀화율은 전체 342종류의 관속식물 중 9.9%로 분석되었다. 석불산 일대의 식물군락에는 조사구내에 출현하는 식물들의 우점도와 군도를 조사한 후 종조성표를 작성하여 군락을 선정한 결과, 3개의 조사구는 소나무군락으로, 1개의 조사구는 곰솔군락으로 분류되었다.

• 한국환경복원기술학회지
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• 제19권2호
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• pp.19-39
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• 2016

This study was carried out to investigated the flora of Naknam-Jeongmaek, Korea. The survey sites were Gilmajae, Mt. Muryang, Mt. Yeohang, Mt. Muhak, Mt. Cheonju and Mt. Sineo. The flora were summarized, numbering 666 taxa including 112 families, 357 genera, 574 species, 4 subspecies, 73 varieties and 15 forms. The threatened species was Aconitum austrokoreense. The rare plants were 12 taxa including Asarum maculatum, Wikstroemia ganpi, Viola albida, Tricyrtis macropoda and so forth. The Korean endemic plants were 19 taxa including Salix koriyanagi, Thalictrum actaefolium var. brevistylum, Weigela subsessilis, Hosta minor and so forth. The specific plants by floristic region were 81 taxa including 38 taxa of grade I, 19 taxa of grade II, 16 taxa of grade III, 7 taxa of grade IV and 1 taxa of grade V. The naturalized plants were 32 taxa including Rumex crispus, Physalis angulata, Erechtites hieracifolia, Taraxacum officinale and so forth. The invasive alien plants were Ambrosia artemisiifolia and Aster pilosus.

• 한국환경복원기술학회지
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• 제22권6호
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• pp.41-61
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• 2019

The purpose of this study was carried out to present the basic data for constructing a ecological stream, Shindangcheon stream located in Gyeongju-si, Gyeongsangbuk-do, South Korea. From August 2017 to June 2019, a total of 7 surveys were conducted. The numbers of vascular plants were summarized as 388 taxa including 75 families, 246 genera, 360 species, 4 subspecies, 19 varieties, 2 forms and 3 hybrids. The most families of taxa were Poaceae (59 taxa), Asteraceae (47 taxa), Fabaceae (27 taxa), Rosaceae and Cyperaceae (20 taxa, respectively), and Polygonaceae and Brassicaceae (15 taxa, respectively). The rare plant was Aristolochia contorta Bunge, and the Korean endemic plants were 4 taxa, such as Populus × tomentiglandulosa T.B.Lee, Salix koriyanagi Kimura ex Goerz, Lespedeza maritima Nakai, and Weigela subsessilis (Nakai) L.H.Bailey. The specific plants by floristic region found in this site were 13 taxa comprising 8 taxa of grade I, 4 taxa of grade III, and 1 taxon of grade IV. The naturalized plants were 73 taxa, such as Fallopia dumetorum (L.) Holub, Persicaria orientalis (L.) Spach., Potentilla supina L. var. ternata Pterm., and so forth. The invasive alien plants were 6 taxa, such as Rumex acetosella L., Sicyos angulatus L., Solanum carolinense L., Ambrosia artemisiifolia L., Lactuca serriola L., and Symphyotrichum pilosum (Willd.) G.L.Nesom..

• Journal of Plant Biotechnology
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• 제4권4호
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• pp.155-161
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• 2002

The HCV gene was expressed in potato plants under the control of the constitutive CaMV 355 promoter or tuber-specific patatin promoter. Solanum tuberosum plants carrying a plant expression vector harboring the encoding region of HCV gene were generated by Agrobacterium tumefaciens-mediated in vitro transformation methods. The presence of HCV gene in the plant genome was detected by PCR and DNA hybridization experiments. We obtained the 5 lines of transgenic potato with the pMBPHCV construct and 4 lines of transgenic potato with the pATHCV construct. The HCV transgenic stably integrated into the potato genome, as well as their transcription. HCV mRNA was identified in leaf and tuber tissues of transgenic plants by Northern blot analysis. The transgenic potato plants produced the expected transcript, and the corresponding HCV protein accumulated in individual transgenic plants.

• 한국환경복원기술학회지
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• 제19권6호
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• pp.41-61
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• 2016

This study was carried out to offer the basic data for establishing the management plan and constructing the ecological data by surveying and analysing the flora distributed in main survey sites(Mt. Gwangdeok, Mt. Cheonggye and Mt. Jukyeop), Hanbuk-Jeongmaek. The flora were summarized, numbering 659 taxa including 99 families, 341 genera, 575 species, 4 subspecies, 69 varieties and 11 forms. The rare plants were 16 taxa including Tylophora floribunda, Hanabusaya asiatica, Lilium cernuum, Belamcanda chinensis and so forth. The Korean endemic plants were 24 taxa including Salix koriyanagi, Aconitum pseudolaeve, Clematis trichotoma, Hosta minor and so forth. The specific plants by floristic region were 95 taxa including 32 taxa of grade I, 31 taxa of grade II, 25 taxa of grade III, 5 taxa of grade IV and 2 taxa of grade V. The naturalized plants were 38 taxa including Fallopia dumetorum, Silene armeria, Cosmos bipinnatus, Poa pratensis and so forth. The invasive alien plants were 4 taxa including Ambrosia artemisiifolia, Ambrosia trifida, Aster pilosus and Eupatorium rugosum.