• 혜화의학회지
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• 제22권2호
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• pp.23-35
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• 2014

Gu-Hwang Plants(plants collected from mountains and fields and eaten when no food was available) is healthy, life saving food material, being Mi(taste) and Ki(energy) of nature, for modern people who lose their health by oversupplying energy and unbalanced diet. Also, Gu-Hwang Plants is material for new medicine and functional foods. However, there is a lack of document research about Gu-Hwang plants in Korea. "Gu-Hwang-Bon-Cho" is a book about plants written as a guide for collecting food from nature and maintaining life at times when no food is available due to natural disaster. The book describes in which soils the plants are produced and the names for the plants, and classifies them according to hot and cold characters and sweet and bitter tastes of the plants. In addition, the book distinguished plants' edible parts, such as flower, fruit, root, stem, peel, and leaf, with how to collect and cook them. The book is of great value that it is reprinted over generations and now there are 30 kinds of existing books. This study conducted research based on books published throughout history which are the first book of this kind by Ju-wang-ju, a book published in 1525 by I-Ryeom, a book published in 1555 by Youk-gan, a book published by Ho-seung of Sa-cheon, and a book published in 1566 by Ju-gon.

• 동의생리병리학회지
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• 제16권2호
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• pp.215-219
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• 2002

Over the past decade there has been a resurgence of interest in botanical products for their medicinal uses. This present study was designed to screen medicinal plants for the treatment of brain diseases such as Alzheimer's disease or aging. We tested the effects of the water extracts from 41 species medicinal plants on acetylcholinesterase (AChE) inhibition and antioxidant activity in vitro. Among them, Euodia rutaecarpa, Rubus coreanus, Achyranthes japonica, Morus alba, Salvia miltiorrhiza, Liriope platyphylla, and Rheum palmatum showed relatively AChE inhibition potency over 80%. Among the 7 medicinal plants investigated, E. rutaecarpa showed an 25%, 65%, and 93% inhibitions on AChE activity at 2.5, 12.5, and 25 ㎍/㎖ of the extract, respectively and was found to be one of most potent AChE inhibitor. The water extracts from 4 species (E. rutaecarpa, R. coreanus, A. iaponica, and M. alba) were tested on their antioxidant capacities using radical scavenging effect against ABTS/sup ㆍ+/. Among the 4 medicinal plants investigated, both R. coreanus and E. rutaecarpa showed significant antioxidant capacity. Therefore, E. rutaecarpa and R. coreanus are expected to ameliorate the clinical symptoms in Alzheimer's disease due to significant AChE inhibition and radical scavenging effect.

• 한국안전학회지
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• 제26권6호
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• pp.85-89
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• 2011

Component reliability data were analyzed by using PRinS(Plant Reliability data information System) based on the latest operating experiences of eight KSNPs(Korea Standard Nuclear Power plants), and these new data were applied to the KSNP PSA models. In addition, the existing PSA models were revised for reflecting as-built and as-operated plant conditions. As a result of newly performing PSA in this paper, CDF and LERF were estimated 26.1% and 18.2% lower than the existing values, respectively. It was identified that the risk measures decreased not because of revising the models but because of applying the new component reliability data. The result and the method of this paper could be used when generating plant specific data and performing the living PSA in the future.

• The Plant Pathology Journal
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• 제26권4호
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• pp.417-420
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• 2010

The expression of HR-like lesion inducing gene of Oryza sativa (OsHRL) was slightly increased by Xanthomonas oryzae pv. oryzae (Xoo) infection. Transgenic rice plants over-expressing OsHRL gene were challenged with Xoo and the development of disease symptoms were examined to investigate the effect of OsHRL gene expression on plant defense responses. The over-expression of OsHRL increased disease resistance against Xoo compared with wild type plants.

• 한국자원식물학회지
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• 제20권5호
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• pp.424-436
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• 2007

여기에서는 제주도에 분포하는 임목유전자원에 대하여 앞으로의 개발과 보존전략 수립의 기초 자료로 활용하기 위하여 수행하였다. 제주도에 분포하는 목본식물은 62과 136속 279종 28변종 13품종으로 계 320 분류군이었다. 그 중 침엽수인 나자식물은 3과 5속 7종으로 전체의 2.2%였으며, 나머지인 59과 131속 272종 28변종 13품종 계 313 분류군이 활엽수였다. 활엽수 중 상록수는 31과 45속 72종 7변종 5품종으로 84 분류군으로 활엽수종의 26.8%이며, 낙엽수는 42과 93속 200종 21변종 8품종 계 229 분류군으로 73.2%였다. 이들은 교목 122 분류군(38.1%), 관목 177 분류군(55.1%), 만경 21 분류군(6.8%)으로 구성되어 있었다. 또한 휴면형, 번식형, 산포기관형 및 생육형에 의한 스펙트럼이 분석되었다. 제주도에 분포하는 목본식물 320 분류군 중 17과 21속 14종 16변종 30 분류군이 한국특산이었으며, 그 중 22 분류군은 제주특산이었다. 제주도에 분포하는 목본식물 중 식물구계학적 특정식물 종은 V 등급 10 분류군, IV 등급 24 분류군, III 등급 53 분류군이었다. 이 결과는 V 등급은 전국의 12%, IV 등급은 7.6%, III 등급은 17.2%에 해당하는 것이다.

• 동의생리병리학회지
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• 제16권3호
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• pp.458-463
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• 2002

This present study was designed to screen medicinal plants for the treatment of brain diseases such as Parkinson's disease or Alzheimer's disease. The inhibitory activity of monoamine oxidase B (MAO-B) was investigated in the water extracts of 56 species traditional medicines. Among the tested medicinal plants, E. lathyris, R. palmatum, F. rhynchonphylla, E. caryophyllata, E. pekinensis and H. syriacus were showed the strong inhibitory activity against MAO-B. Therefore, MAO-B inhibitory activity of 6 traditional medicine extracts in the different concentration (2.5, 6.5 and 12.5 ㎍/ml) was determined. The inhibitory effect of MAO-B was detected with dose dependently in 6 traditional plants extracts. E. caryophyllata and R. palmatum were showed the highest inhibitory activity, the MAO-B inhibitory activity at 2.5㎍ of herbal extract being 58% and 52%, respectively. The water extracts of 6 species were tested on antioxidant activity using radical scavenging effects against ABTS/sup +/. The water extracts of R. palmatum, E. caryphyllata, E. pekinensis and H. syriacus were showed strong antioxidant capacity at 20 ㎍ concentration. Among the 56 medicinal plants investigated, the water extracts of R. palmatum and E. caryphyllata were showed significant antioxidant capacity and MAO-B inhibiory activity. Therefore, R. palmatum and E. caryphyllata are expected to ameliorate the clinical symptoms in Parkinson's disease due to significant MAO-B inhibition and radical scavenging effect.

• 정보보호학회논문지
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• 제29권4호
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• pp.867-875
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• 2019

원자력을 포함한 산업제어시스템에 대한 사이버보안 사건이 증가함에 따라 기술적 보안 조치와 더불어 사이버보안교육 훈련 및 사이버 비상사건 대응 훈련이 요구되고 있다. 대상 설비를 운영 관리하는 담당자들에게 효과적인 사이버보안 인식 및 교육 훈련을 위해서는 센서 수준에서부터 발전소 운영 상태까지 사이버공격으로 인한 영향 분석이 가능한 훈련용 시스템이 요구된다. 이에 본 논문에서는 원자력 운영 상태를 모사하는 발전소 시뮬레이션과 특정 계통의 시뮬레이션 및 물리장치를 포함하는 원자력발전소 사이버보안 훈련용 HIL 시스템을 개발하였다. 이를 통해 계통담당자 및 사이버보안조직을 대상으로 하는 기술적 훈련, 사이버보안 조직 및 비상사건대응 조직을 대상으로 하는 특화된 사이버보안 훈련을 지원하고자 한다.

• Journal of Plant Biotechnology
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• 제33권4호
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• pp.237-242
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• 2006

Commercial cultivars and elite germplasms of barely (Hordeum vulgare L) are still recalcitrant to genetic transformation because of the lack of an efficient regeneration system. In this study, we established an efficient plant regeneration procedure from embryogenic calli derived from mature embryos. Callus induction from germinated mature embryos was best as over 95% in CIM medium (CI medium containing $2.5mg/{\ell}$ dicamba) under dark incubation. Development of embryogenic callus was highest as over 50% in CI3D medium (EC medium supplemented with $3mg/{\ell}$ 2,4-D). The highest regeneration of plants from embryogenic callus (40%) was obtained with CIS medium ($SI+1mg/{\ell}IAA\;and\;2mg/{\ell}\;BA$). These plant regeneration conditions could be useful in improving barley transformation efficiency.

• 한국환경복원기술학회지
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• 제14권1호
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• pp.77-88
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• 2011

This study was carried out to investigate the effects of soil depth and planting density on the growth of lettuce, crown daisy, and strawberry on a rooftop condition using artificial soil as a growth media. The vegetable crops showed better growth for plant height (cm), plant width (cm), plant fresh weight (g), and Fo, Fm and Fv/m on 20cm depth soil than 10cm depth soil except strawberry. Planting density of $16/m^2$ and $64/m^2$ did not show significant differences on the growth of the crops. Soil moisture content and EC were low for 10cm depth soil in lettuce plots, whereas there was no significant differences on soil moisture and EC between two soil depth in strawberry plots. Hunter's L, a, and b values showed the leaf color of lettuce dark green on 20cm depth soil and reddish on 10cm depth soil. Results showed that soil depth suitable for crop growth on rooftop conditions was 20cm rather than 10cm. Growth response of the crops showed no significant difference between $16/m^2$ and $64/m^2$, indicating that planting density of 64 $plants/m^2$ could be practiced on rooftop conditions. Lettuce growth rapidly changed in control treatment in which leaves were not pinched out, while slowly changed in plants which leaves were periodically pinched out. In the case of control plot, it was impossible to harvest because withering of lower leaves after blossom on June 22. The plant of crown daisy in which pinching was not conducted, blossomed on June 7, and the plants were removed since its aesthetical value was lost. Strawberry seemed to be a suitable vegetable crop for rooftop conditions based on its high covering rate and extended growth period until late October. The soil depth 20cm and planting density 64 $plants/m^2$ were suitable for vegetable crops on green roof system using artificial soil.

• 생명과학회지
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• 제24권5호
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• pp.498-504
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• 2014

HAase는 신체의 연골, 피부, 눈의 초자체 등에 포함된 고분자 다당류의 HA를 분해하는 효소로서 상처나 염증질환 시 활성화되어 염증, 알레르기 유발과 관련된 효소이다. 본 연구는 500종 식물에서 각 종당 한 식물체로부터 한 천연물의 메탄올 추출물(500추출물)을 이용하여 생물학적으로 기능이 다양하고 산업적으로 활용 가능성이 많은 HAase 저해제를 검색하였다. 그 결과 HAase 저해효과가 가장 우수한 천연물 추출물은 때죽나무 줄기 추출물 57.28%, 매화말발도리 줄기 추출물 53.50%의 저해효과를 나타내었다. 이 같은 추출물들의 농도 별 저해효과를 확인한 결과 농도 의존적으로 저해율이 증가하였다. 이 같은 결과로 볼 때 때죽나무, 매화말발도리 추출물은 HAase 효소의 저해효과가 우수하여 향후 HA 분해와 관련된 항염증 및 항 알레르기 연구에 이용될 수 있다.