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토양에서 분리한 국내 미기록종 Pseudomonas 속 6종의 생화학적 특성과 계통 분류
김현중,정유정,김해영,허문석,Kim, Hyun-Joong,Jung, You-Jung,Kim, Hae-Yeong,Hur, Moonsuk 한국미생물학회 2019 미생물학회지 Vol.55 No.1
생명공학산업의 주요한 자원인 미생물의 가치는 날로 증대하고 있으며, 이로 인해 생물자원을 확보하기 위한 국가간의 경쟁은 심화되고 있다. 이에 다양한 환경에서 미생물자원을 발굴하고 특성을 확인하는 것은 미래의 잠재적 생물자원을 확보하는데 큰 의미가 있다. 본 연구에서는 Pseudomonas속에 속하는 6종의 미생물들을 일반 토양에서 분리하여 분자계통학적 분석을 통해 국내 미기록종임을 확인하였다. 본 연구로 확보된 미생물들은 자생 생물자원의 다양성을 늘리고, 산업계에 생물자원의 선택의 폭을 늘리는데 도움이 될 것으로 기대된다. In 2017, as a study to discover indigenous prokaryotic species in Korea, a total of 6 bacterial strains assigned to the genus Pseudomonas were isolated from soil. From the high 16S rRNA gene sequence similarity (${\geq}99.5%$) and phylogenetic analysis with closely related species, the isolated strains were identified as independent Pseudomonas species which were unrecorded in Korea. The six Pseudomonas species were Pseudomonas mandelii, P. canadensis, P. thivervalensis, P. jessenii, P. lurida, and P. brenneri. Gram reaction, culture conditions, colony and cell morphology, basic physiological and biochemical characteristics are described in the species description section.
오호혈(五虎穴)이 족과부(足踝部) 체표온도변화(體表溫度變化)에 미치는 영향(影響)
김현중,변재영,안수기,이건목,박용현,김경식,Kim, Hyun-Jung,Byun, Jae-Young,Ahn, Soo-Gi,Lee, Geon-Mok,Park, Yong-Hyun,Kim, Kyung-Sik 대한침구의학회 2001 대한침구의학회지 Vol.18 No.1
Background and Purpose : There have been many studys about the relationship between the meridians and the acupoints of the twelve meridians, but no study about the extra points. To verify Dong-Shi acupoints, a kind of extra points, we studied the effects on the thermal changes of the ankle region following acupuncture on the Wu-Hu. Object and Methods : This study was researched into clinical statistics for 45 healthy normal students. The object was divided into two groups. One was the control group and the other was the acupuncture group. The acupuncture group was divided into two groups ; ACU-up : The class of ascent thermal change among acupuncture group. ACU-dn : The class of descent thermal change among acupuncture group. First, in the control group, we took a picture at the ankle region(BL60, BL62, GB40, ST41) without any stimulation with the Digital Infrared Thermal Imaging System and did after 10 minutes respectively. Second, in the acupuncture group, we took a picture without any stimulation and then acupuncture on Wu-Hu and took a picture after 10 minutes in the same way respectively. Results : 1. In the control group, average thermal change of BL60, BL62, GB40 and ST41 was decreased(about $0.2^{\circ}C$) after 10 minutes. 2. The skin temperature of all measured parts was significantly lower in the ACU-dn group after 10 minutes. 3. There were no significant differences of thermal change between the control and the acupuncture group, between the control and ACU-up group after 10 minutes. Conclusion : This result indicated that the acupuncture on the Wu-Hu was effective at the ankle region. And so the more study is needed continuously.
김현중,이삼로,변재영,안수기,Kim Hyun-Jung,Lee, Sam-Ro,Byun Jae-Young,Ahn Soo-Gi 대한침구의학회 2000 대한침구의학회지 Vol.17 No.3
Objectives : This study was performed to evaluate the clinical results of the spodylolisthesis patients treated with oriental medical methods. Methods : We diagnosed spondylolisthesis by L-spine simple x-ray. 28 patients with spondylolisthesis were hospitalized at WonKwang University KwangJu Oriental Medical Hospital from April 1997 to January 2000 and treated by acupuncture, moxibustion, bed rest, herb-medicine and physical therapy. Results : 1. Distribution showed female predominence(82.1%) in general. 2. In the duration of symptoms, the largest group was the group of "acutest" (32.1%). 3. In the distribution of causes, the largest group was "overwork" (35.7%). 4. Isthmic type is the most common(75%) in etiology. 5. Isthmic type involved the 5th lumbar vertebra in 57.1% and degenerative type involved the 4th lumbar vertebra in 57.1%. 6. Most of cases were grade I(96.4%) in degree of slipping. 7. The common symptoms were radiating pain(92.9%) and low back pain(78.6%). 8. Therapeutic efforts above "good" by Kim's criteria was 20 cases(71.4%) Conclusions : The result of treatment by oriental medical methods is satisfactory for the treatment of spondylolisthsis.
김현중(Hyun-Jung Kim),석승준(Seung-Joon Seok) 한국정보기술학회 2012 한국정보기술학회논문지 Vol.10 No.11
It is an critical issue in the technical areas of Internet to provide Internet service to mobile nodes. There is, however, no efficient Internet solution for mobility support. The crux of the matter is that packet losses happened during handover let the quality of service fall. This paper addresses the handover problem of Proxy Mobile IPv6 which is a new mobility support model for Internet. PMIPv6 is a network based mobile Internet model like telecommunication networks. In PMIPv6 end stations dont deal in mobility support processes and the inside of network does everything for mobility support. In this paper, PMIPv6 fast handover model is improved to fulfil authentication and binding update processes before handover and also optimized routes between source and destination nodes are kept consistently after handover. This paper evaluates the performance of the proposed model through mathematically analyzing the costs of handover processes, as compared to previous representative models.
김현중(Kim Hyun Joong),정진우(Jung Jin Woo),여관현(Yeo Kwan Hyun) 한국주거환경학회 2016 주거환경(한국주거환경학회논문집) Vol.14 No.1
This study investigates the spatial distributions and the best choice of optimal locations for neighborhood parks within walking distance (NPWWD) in Seoul Metropolitan Area (SMA) which are in high demand of NPWWD. In order to analyze the optimal locations for NPWWD, this study suggests a new method and process to explore the quality of optimal locations at a microlevel using available spatial data including population density map devised through dasymetric mapping technique. According to the results, there were considerable areas, 33,880,000㎡, for the new optimal locations of NPWWD in SMA and those areas belonged to only forty-eight areas of seventy-nine Si/Gun/Gu administrative zones. The high-ranking areas were discovered to be heavily populated areas in Seoul city and Gyeonngi-do province. The highest category of optimal locations of NPWWD, ‘Very Good,’ were mostly appeared within the inner Seoul city. Meanwhile, there were twenty-two Si/Gun/Gu which have ‘Very Good’ level and consequently, NPWWD should be installed focusing on those Si/Gun/Gu for the near future. The findings of this study can be directly applied to set up a new NPWWD in the future and the methodology to find optimal locations will be helpful for follow-up studies.
지중가온 재배에 의한 녹차의 조기생산 체계확립과 적합 품종선발
김현중(Hyun-jung Kim),노일섭(Ill-Sup Nou) 한국차학회 2000 한국차학회지 Vol.6 No.1
This study was carried out to be established the protected cultivation system for early production and for selection the suitable cultivar at soil warming cultivation, investigating the changes of soil temperature in each soil depths. growth characteristics and major chemical components of the green tea (Camellia sinensis) cultivars which were introduced from the Japan. The mean soil temperature was kept over average 15˚C than unheated the bare ground by soil warming, and the soil temperature was in range of 15~28˚C from the middle to the last in January. The early production of green tea was possible at this range of the soil temperature by soil warming. As the results of the growth characteristics for selecting the suitable cultivar at soil warming cultivation, the plant growth was fairly vigorous in almost cultivars and especially cultivar 'Yabukita' was showed best growth, and 'Makinoharawase' was medium. Also, plant height and internode length were the highest in 'Yabukita'. The leaf shape index was the lowest in 'Oiwase'(1.86), and 'Saemidori' was the highest(3.15). The length of the young shoot in 'Fushun' was the lowest by 33.0cm, and was the highest in 'Yabukita' by 46.8cm. According to the results of the above, 'Yabukita' and 'Okumidori' were the most recommendable cutivars in soil warming cultivaion system. The contents of total nitragen in 'Yabukita' and 'Okumidori' were each the highest by 5.86%, and 'Makinoharawase' was the lowest by 5.15%. The content of tannin was 12.5~15.3% all over the cultivars. The content of caffeine was the highest in 'Oiwase' , and was the lowest in 'Makinoharawase'. The total contents of free amino acid were composed mainly of theanine, aspartic acid, serine, glutamic acid, and arginine, and these were occupied as much as 83~90%. The data about major chemical components in each cultivars will be used as a selection indicator of the quality of green tea.