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RISS 인기검색어
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김종태,배두원,김만일,정교철 7개 국립대학교 환경연구논문집 공동발행 위원회 2005 공업기술연구 Vol.5 No.-
To study the relations of underground/surface-water exhaustion and excessive pumping, we have analyzed river, geological characteristics, recharge rate of rainfall and underground-water level. The ground water recharge rate from the SCS-CN analysis is 8.4%, and the recharge is computed in 6.4111 x 10^(5)㎥/y. This results mean that a big drawdown in observation holes may be occurred by excessive pumping. From in-situ hydraulic conductivity test, hydraulic conductivity in basement of the study area is calculated in 7.996 x 10^(-6)-2.067 x 10^(-6)m/sec. The underground/surface-water in the study area with small underground-water recharge rate will be exhausted by long time pumping.
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CROSS 공법을 이용한 폐수의 생물학적 처리에 관한 연구
박광하,심재도,권영두,강동수,김인호,정태명,황갑성 7개 국립대학교 환경연구 논문집 공동발행 위원회 2003 공업기술연구 Vol.3 No.-
This study aims to develop using a continuous removal of organic and settling solid(CROSS) to increase the efficiency of aeration system for wastewater treatment. To solve many problems of the conventional activated-sludge process, authors suggested a new CROSS model in conjunction with aeration systems in 1996. This system is characterized by utilizing an intensive aeration pipe with inlets at the lower portion and outlets at the higher portion in an aeration tank. Through the experiments on CROSS process, the average removal efficiences of BOD, COD_(Mn), SS, T-N and T-P were showed 98.8%, 93.9%, 98.0%, 71.3% and 49.8%. The average DO (Dissolved-Oxygen) concentration was constantly maintained at 8.0 mg/L by the intensive aeration which was accompanied by rapid reduction of BOD. Degradation of the organic matters in sewage then continued for the whole aeration period. The process demonstrated that it was very adaptive without seeding and returning the sludge. Compared to the activated sludge system, the system was very flexible for the continuous flow treatment. This preliminary assessment showed that the porous media in CROSS reactor is viable for the sewage treatment, since the porous media under the intensive aeration achieves acceptable effluent quality.
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하태두(Tae-Du Ha), 정철(Chul Jung) 임상약침학회 2016 임상약침학회학회지 Vol.5 No.1
Objectives : This study is to report the clinical effect of pharmacopuncture (Yakchim) on the patients with severe tension-type headache. Methods : Patients were treated with using pharmacopuncture (Yakchim). Pharmacopuncture (Yakchim) was treated into both GB20, EX-HN5, GB21 and some painful points around nuchal line. Results and Conclusions : CA, MOK, V pharmacopuncture (Yakchim) may be effective in treating tension-type headache.
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Sphingomonas flavus sp. nov. isolated from road soil
Du, Juan,Singh, Hina,Won, KyungHwa,Yang, Jung-Eun,Akter, Shahina,Jin, Feng-Xie,Yi, Tae-Hoo Springer-Verlag 2015 Archives of microbiology Vol.197 No.7
<P>A yellow-colored, Gram-negative, strictly aerobic, non-motile, rod-shaped bacterium, designated THG-MM5(T), was isolated from road soil in Yongin-si, Gyeonggi-do, Republic of Korea. Based on 16S rRNA gene sequence, strain THG-MM5(T) was moderately related to Sphingomonas sediminicola KACC 15039(T) (96.1?%), Sphingomonas ginsengisoli KACC 16858(T) (96.1?%) and Sphingomonas jaspsi KACC 13230(T) (96.0?%). Chemotaxonomic data revealed that strain THG-MM5(T) possesses ubiquinone-10 as the only respiratory quinone, sym-homospermidine as the major polyamine and summed feature 3 (C16:1 ω7c and/or C16:1 ω6c), C18:1 ω7c and C16:0 as the major fatty acids. The polar lipid profile included sphingoglycolipid. The DNA G?+?C content was 60.7?mol%. These data, together with phenotypic characterization, corroborated the affiliation of strain THG-MM5(T) to the genus Sphingomonas. Thus, the isolate represents a novel species, for which the name Sphingomonas flavus sp. nov. is proposed, with THG-MM5(T) as the type strain (=KACC 18277(T)?=?CCTCC AB 2014320(T)).</P>
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미얀마 이라와디강(江)하구 저습황무지(低濕荒蕪地)의 농업개발 가능성
정연태,김규원,이우원,민황기 한국국제농업개발학회 1997 韓國國際農業開發學會誌 Vol.9 No.2
1. 우리나라의 벼 一般型 및 統一型 品種을 乾期에 栽培하였을 때에도 不時出穗 현상은 없었으나 $quot;소백벼(一般型)$quot; 및 $quot;중원벼(統一型)$quot;는 出穗日數가 빨라지고 稈長이 短縮되어 問題視 되었고, $quot;소백벼$quot;, $quot;오대벼$quot;, $quot;대성벼$quot;, 및 $quot;중원벼$quot;는 미얀마 對比品種보다 減收되었다. 2. 一般型 품종 중에서 收量이 가장 높았던 것은 $quot;신금오벼(벼 8.95 톤/㏊)$quot;로서 對比品種보다 29% 많았고, 統一型 품종 중에서는 $quot;남풍벼(벼 9.67톤/㏊)$quot;가 對比品種보다 약40% 增收되었다. 3. 乾期에는 옥수수, 땅콩, 참깨, 녹두, 해바라기 등의 밭作物 재배가 가능하다. 단, 含黃土層의 露出로 인하여 土壤 pH가 낮은 地盤高 1.2m 以下 地域은 浸水危險도 있으므로 벼를 栽培함이 좋으며, 오리飼育, 淡水魚 養魚, 또는 이들의 複合營農 등도 가능할 것으로 보였다. 4. 乾期벼의 ㏊당 生産費는 737천원 정도로서 약 343천원의 純收益이 期待되었으며, 固定費用이 낮아 쌀 톤당 生産費가 184천원 내외로서 國際競爭力이 있었다. 5. 荒蕪地 약 7,300㏊를 開沓하여 實栽培面積 4,800㏊가 얻어졌을 때, 乾期作만으로도 현 國際米價(300$/톤)를 기준하여 쌀 4톤/㏊ 生産시 年間 16.5억원의 純收益이 기대되어 10년 내에 投資回收가 可能할 것으로 보였으며, 米價300佛 때 損益分岐 생산량은 2.2톤/㏊ 이었다. 6. 國內의 옥수수 재배는 純損失 狀態인데 반하여, 미얀마 델타地域 옥수수의 生産費는 韓國의 15% 水準에 不過하여 77천원의 순수익이 期待되었으나 國際競爭力은 없을 것으로 보였다. Korean rice varieties, Japonica and Jap. cross Indica type, were cultivated in the deltaic area of Myanmar during dry season to find out the productivities and problems to be expected. Although the non-seasonal heading was not found, but some varieties such as $quot;Sobaegbyeo$quot;, $quot;Odaebyeo$quot;, $quot;Daeseongbyeo$quot;, $quot;Jungweonbyeo$quot; etc. were not favorable by decreasing yields or by shortening stem length and headign dates etc. than in Korea. The highest yield among Japonica varieties was $quot;Singeumobyeo$quot; theat was about 29%(8.95t/㏊ in rough rice) higher than check variety $quot;Shwewar tun$quot; while the $quot;Nampungbyeo$quot; increase about 40%(9.7t/㏊ in rough rice) among Jap. cross Indica type. the iddleland in deltaic plain could be cultivated upland crops such as corn, groundnut, sesame, mung bean, sun flower etc. during dry season after reclamation, except in the area lower than 1.2m in sea level where weak potential acid sulphate soil materials. occur near surface. The lower areas which also apt to be water-logging even in dry season by the season by the discharge of irrigation water. The raisin of duck or fresh water fishes with combination of rice also possible. the production cost or rice in Myanmar was characterized by having low in fixed expenditure, and it was about 737×10³won/㏊ while the net income was about 343×10³won/㏊. Under the assumption that the price of rice in the world market is about 300$/t, the break even point of rice was about 2.2t/㏊. The production cost of corn in the deltaic area was only about 15% of that in Korea, and about 77×10³won/㏊ of net income is expected, although did not have competitive power in the world market.
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Sphingobium soli sp. nov. isolated from rhizosphere soil of a rose
Du, Juan,Singh, Hina,Yang, Jung-Eun,Yin, Chang Shik,Kook, MooChang,Yu, Hongshan,Yi, Tae-Hoo Springer-Verlag 2015 Antonie van Leeuwenhoek Vol.108 No.5
<P>Strain THG-SQA7(T), a Gram-negative, strictly aerobic, non-motile, rod-shaped bacterium was isolated from rhizosphere soil of a rose in PR China. Strain THG-SQA7(T) is closely related to the members of the genus Sphingobium, showing the highest 16S rRNA gene sequence similarities with Sphingobium lactosutens KACC 18100(T) (98.2??%) and Sphingobium abikonense KCTC 2864(T) (98.1??%). The DNA-DNA relatedness between strain THG-SQA7(T) and S. lactosutens KACC 18100(T) and S. abikonense KCTC 2864(T) was 26.2??±??0.9 and 28.3??±??1.2??%, respectively. Chemotaxonomic data showed that strain THG-SQA7(T) possesses ubiquinone Q-10 as the predominant respiratory quinone, and C18:1 ??7c, C16:0, summed feature 3 (C16:1 ??7c and/or C16:1 ??6c) and C14:0 2OH as the major fatty acids. The major polar lipids were found to be phosphatidylethanolamine, phosphatidylmonomethylethanolamine, phosphatidylglycerol, sphingoglycolipid, diphosphatidylglycerol and phosphatidyldimethylethanolamine. Based on these results, together with phenotypic characterization, a novel species, Sphingobium soli sp. nov. is proposed.with the type strain is THG-SQA7(T) (=CCTCC AB 2015125(T)??=??KCTC 42607(T)).</P>
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