• 식물분류학회지
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• 제39권3호
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• pp.130-134
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• 2009

한국의 강원도 치악산의 산림에서 발견된 개발나물속 1 신종인 세잎개발나물 (Sium ternifolium B.Y. Lee & S.C. Ko)을 기재하고 도해하였다. 세잎개발나물은 긴 점첨두의 엽선, 연약한 3-6개의 소산경과 같은 공유 형질을 가지고 있어 일본에 자생하는 S. serra (Fr. & Sav.) Kitag.와 유사하나 키가 작고, 총포가 없으며 모든 잎이 3개로 갈라지는 특징에 의해 쉽게 구별된다.

• 식물분류학회지
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• 제40권4호
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• pp.234-239
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• 2010

핵 리보좀 DNA ITS 구간의 염기서열 정보를 이용하여 한국산 산형과 개발나물속의 분자 계통학적 연구를 수행하였다. ITS 계통수는 한반도 고유종인 대암개발나물(S. heterophyllum)이 한반도에 생육이 보고된바 없는 러시아 우수리지역의 고유종인 S. tenue와 동일한 종임을 밝혔다. ITS 1과 ITS 2 구간의 염기서열 비교시 S. tenue와 인천 문수산에 생육하고 있는 대암개발나물이 100% 일치함을 확인할 수 있었다. 또한 ITS 구간의 염기서열은 최근 신종으로 발표된 세잎개발나물(S. ternifolium)이 개발나물속의 다른 분류군과 뚜렷하게 구별됨을 지지하고 있었다. 세잎개발나물은 유연관계가 가장 가까운 일본 고유종 S. serra의 ITS 염기서열 비교시 1.4와 1.6%의 차이점을 가지고 있음이 확인되어 종으로서의 처리가 적합함을 확인할 수 있었다.

• Journal of Nutrition and Health
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• 제25권5호
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• pp.397-403
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• 1992

This study was performed to investigate the effect of dietary magenesium on stress reactions in rats having abdominal surgery. Sixty three male rats of sprague-dawley strain were blocked into 3 groups : rats fed regular magnesium (0.05% Mg: control) rats receiving regular magnesium with surgery(Mg-adeq : S) Five weeks after feeding abdominal surgery was performed and randomly chosen 7 rats from each group were sacrificed on 1, 3 and 5 days after surgery. Te following were found ; 1) Rats fed marginal magnesium showed significantly elevated urinary urea nitrogen urinary potassium and plasma glucose compared controls only one day after abdominal surgery but not 3 days or 5 days after surgery 2) Rats fed adequate magnesium did not show any significant change in metabolic stress indicator after surgery. 3) Plasma free fatty acid and cortisol level were not different among groups. 4) Decreased plasma magnesium and potassium level were found in rats fed marginal magne-sium and sacrificed one day and three days after surgery.

• Journal of Plant Biology
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• 제39권1호
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• pp.15-22
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• 1996

Seventy-three chromosome counts are reported from populations in 70 species from Korea, of which 34 counts in 32 species belong to Apiaceae. New species counts are in Acanthopanax chiisanensis(2n=48), Hydrocotyle japonica(2n=ca.96), H. maritima (n=12), Libanotis coreana (2n=22), Lindera sericea (n=12), Quercus myrsinaefolia (n=12), Rhamnus yoshinoi (n=12), Salix hulteni (n=19), Symplocos chinensis for. pilosa (n=11) and Vaccinium oldhami (n=12). New chromosome level for Asperula odorata (n=11), Cryptotaenia japonica (2n=16) and Sium ninsi (2n=18) is also provided. The taxonomic implications of certain of these counts are discussed.

• 한국미생물·생명공학회지
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• 제22권1호
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• pp.92-98
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• 1994

The bacteria which secrete surface-active agent and decrease the surface tension of culture broth were isolated from soil samples. Among them, biosurfactant producing strain KK-7 was selected and emulsification was also detected. The KK-7 produced biosurfactant not only lipid but also glucose by using carbon source. Taxonomical characterization tests have demostrated the strain KK-7 to be Pseudomonas aeruginosa. The media composition of the P. aeruginosa KK-7 for the biosurfactant production was 1% glucose, 0.5% tryptone, 0.2% yeast extract, 0.15% potas sium phosphate mono-dibasic, 0.05% MgSO$_{4}$, initial pH 8.5, at 30$\circ $C for 2 days. In this condition, the concentration of biosurfactant was reached CMC 5 in the culture broth. Surface active material was produced maximum at stationary8 phase, but emulsification power was higher at log phase than stationary phase. It was considered that P. aeruginosa KK-7 produced biosurfactant more than one type having defferent properties and each maximum production time was different. The minimun surface tension of biosurfactant in 50 mM Tris buffer (pH8.0) was 28 dyn/cm, and CMC was 1 g/L.

• Journal of Chest Surgery
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• 제15권1호
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• pp.40-45
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• 1982

A Clinical study was carried out to observe changes in concentration of serum and urinary potassium during and after open-heart surgery under extracorporeal circulation with Heart-Lung-Machine. The patients studied in the present work included eight cases of congenital heart anomalies and seven cases of acquired valvular diseases of the heart. Blood and urine samples were collected at intervals of 30 minutes during open-heart surgery and at intervals of 8 hours until 48 hours after the operation to determine concentration of serum and urinary potassium. 1.While the concentration of urinary potassium was not changed during the operation, the concentration of urinary potassium was rapidly increased after the operation. Eight hours after the operation, the concentration of urinary potassium was increased to the highest value of 86.97±43.96 mEq/L and was gradually decreased thereafter. The concentration of urinary potassium, however, still remained elevated even 48 hours after the operation, the concentration being greater than preoperative state by 19.90 mEq/L. 2.The concentration of urinary potassium after the operation was higher in the group who went through 90 minutes of extracorporeal circulation [$108.71{\pm}94.71mEq/L$] than in the group who went through 60 minutes of extracorporeal circulation [$86.58{\pm}50.87mEq/L$]. The Increased level of urinary potas-sium observed In the group who went through 90 minutes of extracorporeal circulation continued for longer period of time as compared with that in the group who went through 60 minutes of extracorporeal circulation. 3.The increased level of urinary potassium was observed in the both groups of patients with or without diuretics plus digitalis therapy. However, the increased level of urinary potassium appeared to con-tinue for longer period of time in the group of patients receiving diuretics plus digitalis therapy prior to the operation than in the group of patients receiving no diuretics plus digitalis therapy.

• 한국환경복원기술학회지
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• 제20권6호
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• pp.161-180
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• 2017

As the competition for securing cross-border biological sovereignty becomes intensified due to the adoption of the Nagoya Protocol, this study analyzed patent trends only for freshwater plants in order to secure national biological sovereignty. As a result, freshwater plants include a total of 68 genera and 128 species, and a total of 60 genera and 3,256 patents were surveyed. Among them, iris was the most industrialized, 14.71% followed by angelica(8.48%) and Mentha(6.94%). However, unconfirmed eight genera (Aneilema, Artemisia Cabomba, Nymphoides, Pistia stratiotes L., Pseudoraphis Griff., Ruppia) are not patented freshwater plants and it is expected that patent entry is high and barrier is low in the future. Based on patent results, Cooperative Patent Classification analysis was carried out and as a result, a total of 15 industry sectors were derived. And biopharmaceutical(30.24%) was found to be the most industrialized industry sector followed by agricultural chemistry (28.89%), biochemical industry (16.25%). In the biomedical industry, angelica(17.74%) was the most used and Iris (9.55%), Sium(20.56%) and angelica (20.48%) were found to be the most used in agricultural chemistry, biochemical industry and bio food industry, respectively. The analysis of detailed industry fields for 15 industry sectors showed that medicines of unknown structure containing substances from plants (37.77%), raw materials (46.57%) such as insect repellants, attracting agents and preparation of peptides(16.82%) with more than 21 amino acids were most frequently used in biopharmaceutical, agricultural chemistry and biochemical industry, respectively. This study is of significance as a basic data to know which freshwater plants are used in which field in order to secure biological sovereignty and patent analysis is considered necessary to continuously secure the biological sovereignty for freshwater plants.

• Environmental Analysis Health and Toxicology
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• 제11권3_4호
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• pp.23-32
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• 1996

In this study, we investgated the uptake capacity of several water plants for heavy metals (lead and cadmium) in soil of rivers where are adjacent to a industrial complex in Chun-An city and in A-San city. We also examined the deposition pattern of heavy metal in plants. The results are as follows: 1. The soil of river in Chun-An city was polluted more serious than that of A-San city. In Chun-An city, mean values of lead and cadmium contents in soil were 26.224 $\pm$ 28.037 $\mu$g/g, and 0.854 $\pm$ 1. 127 $\mu$g/g, respectively. 2. Water plants examined in this study were Slum suave KITAGAWA, Persicaria thunbergii H. GROSS, Phragmiles japonica STEUD, Echinochloa crus-galli var. frumentacea WIGHT and Persicaria hydropiper SPACH. Both metal contents of several water plants distributed in Chun-An city were higher than those in A-San city. In these plants, Slum suave showed the highest uptake capacity for lead and cadmium. The mean values of lead and cadmium contents in Slum suave were 40.957 $\pm$ 29.577 $\mu$g/g and 1. 930 $\pm$ 1. 076 $\mu$g/g, respectively. Persicaria thunbergii also showed a relatively high uptake capacity for both metal. 3. Correlation between metal contents in soil and water plants was high. In both cases of Sium suave and Persicaria thunbergii correlation coefficients were 0.605 and 0.549, respectively. 4. We analyzed lead and cadmium contents in root, stem and leaf of several water plants. Both metals were mostly deposited in root. Much of both metals were also deposited in leaf. From the results, we suggest that Slum suave KITAGAWA and Persicaria thunbegii H. GROSS can be used to reduce heavy metals from industrial waste water.

• 한국환경과학회지
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• 제12권2호
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• pp.179-184
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• 2003

Total 7 moors, Yong-neup on Mt. Daeam, Chilbo Mt. moor, Dogapsa-neup on Mt. Wolchul, Wangdeungiae-neup on Mt. Jiri, Mujechi-neup on Mt. Jungjok, Buljae-neup on Mt. Kyungak and Geoinri-neup on Dongsang, were investigated by literatures and survey. Distribution, conditions, and similarity of dominant species and Orchidaceae on moor were analyzed. The results are follows; There are total 46 wetland plant species observed more than twice from 7 moors. The plants classified as constancy class V, which are appeared more than 80%, are Iris ensata var. spontane, Juncus effusus var. decipiens, Sanguisorba tenuifolia var. alba, Habenaria linearifolia, Sium ninsi, Lobelia sessilifolia, Lastrea theiyptoris, and Eupatorium chinensis var. simplicifolium. Highly appearing Orchidaceae, which was classified to constancy class IV plant, are Habenaria linearifolia, Pogonia japonica, Eipactis thunbergii, and Platanthera mandarinorum. They are the typical index plants of the moors. Habitual environment of Habenaria radiate and Platanthera hologlottis can be affected by environmental aspects such as latitude, altitude and the water quality. However those of Habenaria linearifolia, Epipactis thunbergii, and Pogonia japonica are not affected by latitude and altitude, but may be determined by water condition of wetland. As the result of similarity index analysis for appearance of Orchidaceae identifying each moors in the view of species composition, swamps at Dogapsa-neup and Buljae-neup are very similar. However Yong-neup is totally different from those of Dogapsa-neup and Buljae-neup. Yong-neup had shown the high similarity indices of 0.85 and 0.75 with Wangdeungiae-neup and Mujechi-neup, respectively. Growth properties of wild Orchidaceae at wetland were almost similar. Platanthera mandarinorum and Liparis kumokiri had characteristics of good adaptability. Most of them need light. Pogonia was the only long-day plant. The flowering time of these Orchidaceae was from May to September.

• 한국재료학회지
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• 제10권7호
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• pp.459-463
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• 2000

순수한 동적 결합반응이고 전하 누적이 없는 이온 임플란테이션, 새로운 재료 개발 등에 음이온을 직접 사용하는 새로운 연구가 진행되고 있으며, 이러한 관점에서 새로운 고체상의 Cs이온 법이 실험실 규모로 연구되고 있다. 본 논문에서는 음이온 Cs gun으로 DLC 박막을 실리콘 위에 제조하였다. 이 시스템은 가스가 필요없으므로, 고 진공에서 증착이 일어난다. C(sup)-빔 에너지는 80~150eV 사이에서 조절이 우수하였다. Raman 분석결과 박막의 DLC 지수, 즉$sp^3$비율은 이온 에너지 증가에 따라 증가하였으며, 미소 경도값 또한 7에서 14GPa로 증가하였다. DLC박막의 표면 평균거칠기(Ra)는 ~1$\AA$정도로 아주 매끈하였으며, 불순물이 내재되지 않는 박막을 얻을 수 있었다.