http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
남인현,홍효봉,Stefan Schmidt 한국미생물학회 2014 The journal of microbiology Vol.52 No.9
Density functional theory (DFT) calculations were used toexplore the relationship between the biotransformation ofdibenzo-p-dioxin and selected chlorinated derivatives by restingcells of Sphingomonas wittichii RW1 and measuring thethermodynamic properties of the biotransformation substrates. Sphingomonas wittichii RW1 can aerobically catabolizedibenzo-p-dioxin as well as 2,7-dichloro-, 1,2,3-trichloro-,1,2,3,4-tetrachloro-, and 1,2,3,4,7,8-hexachlorodibenzo-pdioxin;however, neither the 2,3,7-trichloro- nor the 1,2,3,7,8-pentachlorodibenzo-p-dioxin was transformed to its correspondingmetabolic intermediate. The experimental biotransformationrates established were apparently governed by theselected thermodynamic properties of the substrates tested.
Calcite Precipitation by Ureolytic Plant (Canavalia ensiformis) Extracts as Effective Biomaterials
남인현,전철민,정가영,최선규,최혁순,박성식 대한토목학회 2015 KSCE JOURNAL OF CIVIL ENGINEERING Vol.19 No.6
An extract of the indigenous plant jack bean (Canavalia ensiformis) was used to produce calcite, an effective biomaterial. The formation of calcite using this extract was compared, under stable conditions, to that using commercially available purified urease. Xray diffraction and scanning electron microscopy were employed to elucidate the mechanism of calcite formation from the crude plant extracts. The results revealed that urease in the jack bean crude extracts catalyzed the hydrolysis of urea in liquid-state cultures. The procedure described herein is a simple and useful method of calcite mineral precipitation that does not require cultivation of microorganisms or further purification of crude extracts. This study suggests that crude extracts of Canavalia ensiformis have the potential to be used in place of purified forms of urease during remediation of cracks and to increase the strength of materials.
PAHs 오염토양에서 분리된 Sphingobacterium sp. KM-02를 이용한 Fluorene 분해 및 토양복원 연구
남인현,전철민,김재곤,Nam, In-Hyun,Chon, Chul-Min,Kim, Jae-Gon 한국지하수토양환경학회 2011 지하수토양환경 Vol.16 No.5
The fluorene-degrading strain Sphingobacterium sp. KM-02 was isolated from PAHs-contaminated soil near a mineimpacted area by selective enrichment techniques. Fluorene added to the Sphingobacterium sp. KM-02 culture as sole carbon source was 78.4% removed within 120 h. A fluorene degradation pathway is tentatively proposed based on identification of the metabolic intermediates 9-fluorenone, 4-hydroxy-9-fluorenone, and 8-hydroxy-3,4-benzocoumarin. Further the ability of Sphingobacterium sp. KM-02 to bioremediate 100 mg/kg fluorene in soil matrix was examined by composting under laboratory conditions. Treatment of microcosm soil with the strain KM-02 for 20 days resulted in a 65.6% reduction in total amounts. These results demonstrate that Sphingobacterium sp. KM-02 could potentially be used in the bioremediation of fluorene from contaminated soil.
한국 벤처캐피탈의 현황과 활성화 방안;중소기업창업투자회사를 중심으로
남인현,김용식,Nam, In-Hyun,Kim, Yong-Shik 한국벤처창업학회 2006 벤처창업연구 Vol.1 No.2
Since the late 1990s, the Korean Venture Capital Industry has been remarkably grown in the aspect of quality and quantity. Korean government expects that the Venture company and Venture Capital Industry would contribute to the recovery of depressed Korean economy and restructuring of the high cost and low efficiency economic structure. Korean government reinforces supporting policies for the Venture Capital and Venture Business. Venture Capital is defined as the form of high risk and high profit investment capital growing the small & medium enterprises to competitive ones through capital and management support and collecting the capital. According to the Gompers and Lerners the venture capital cycle consists of raising investment capital, screening the investment opportunity and invest the money. And later, sold the retained stock to the other investor or to the company. This stage called EXIT Consequently, the function of the venture capital, which supply the fund and the business consultation to venture business, have been emphasized and how to effectively run this capital have been recognized as the way to develop the venture business. In this regard, the problem in Korean Venture Capital Market is as follows. First, most of the sources of fund depends on the government support and this conflict with the nature of risk capital because the government capital emphasis the stability than profitability. And secondly, the efficiency of the venture capital system in Korea do not reach that of the advanced countries due to many kinds of restriction and the rack of support. Consequently, the Activation Schemes for Korean Venture Capital Firms are as follows. First, the sources of venture capital need to diversify from angels to institutional investors such as banks, pensions, fund of fund. And Lastly, the internal management and operational system of venture capital companies should be strengthened by quality to that of global Venture Capital Firms.
Nonuniform Quntization in Digital Sampling : Comparison of μ-law versus A-law
남인현 선문대학교 첨단과학기술연구소 1996 첨단과학기술연구소 논문집 Vol.1 No.1
Digital Sampling에서의 투 가지 비선형 PCM 방식인 μ-law 와 A-law를 상호 비교하였다. 미학적인 관정으로써는 μ-law가 보든 영역에서 동일한 함수형을 취함으로써 A-law 보다 우월하다고 할 수 있고 따라서 계산 시간을 줄일 수가 있다. 또한 Digital Sampling에서 가장 중요한 기준인 SNR(신호 대 잡음비)은 μ-law 가 A-law 보다 약간 상회하여 역시 μ-law가 더 호의적인 것으로 나타났다. The two characteristic schemes of nonuniform Quantization in digital sampling, μ-law and A-law, were compared with each other. From the esthetic viewpoint μ-law surpasses A-law, because it has the identical functional form for the whole range, and naturally it saves some computing time. It also turned out that the SNR(Signal-to-Noise Ratio) also prefers μ-law, because it is slightly higher in μ-law than in A-law.
적출 백서 Vas Deferens에서 Aconitine의 약리작용에 관한 연구
남인현,김기원,조규박,정성후,김연진 전북대학교 의과학연구소 1987 全北醫大論文集 Vol.11 No.1
In this experiment, the pharmacological actions of aconitine and its mechanism were explored in the isolated rat vas deferens. The results were as follows : 1. Aconitine caused a dose-dependent contraction of the isolated rat vas deferens and tachyphylaxis was developed by repeated doses. 2. Contractile action of aconitine was antagonized by tetrodotoxin, phentolamine or phenoxybenzamine but not affected by atropine. 3. Contractile action of aconitine was significantly diminished by reserpine pretreatment. From the above results, it is suggested that contractile action of aconitine in the isolated rat vas deferens is partly due to the release of catecholamines by excitation of sympathetic fibres.