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- 저자 : 홍준기(Hong, Joon-Ki) (검색결과 152 건)
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홍준기,정연철,Hong, Joon-Kee,Jung, Yun-Chul 해양환경안전학회 2016 海洋環境安全學會誌 Vol.22 No.6
개발도상국에서 해양대학의 설립과 우수한 해기사의 양성은 해당 국가의 해양산업발전에 큰 영향을 줄 수 있다. 한국의 해양산업발전에 도전을 받은 케냐 정부에 의해 케냐해양대학의 설립을 위한 프로젝트가 추진되고 있다. 이 연구의 목적은 케냐해양대학을 위한 항해학과 교과과정을 개발하는 것이다. 이를 위해 먼저 케냐의 환경을 조사하였고, 이어서 IMO 해기교육요건, 모델코스 및 세계 주요 해양대학의 항해학과 교과과정을 검토하였으며, 이를 바탕으로 케냐해양대학 항해학과 교과과정을 개발하였다. 개발된 교과과정은 승선실습 1년을 포함하여 총 5년이 소요되는 과정이며, 총 200학점(매학기 20학점)을 이수하도록 되어 있다. 이 교과과정은 비록 케냐의 환경에 맞추어 개발된 것이지만, 국제적으로 표준화된 해기교육의 특성상 다른 국가의 유사한 연구에도 좋은 참고가 될 것으로 기대된다. In developing countries, the establishment of maritime colleges and the training of excellent merchant marine officers can greatly impact on the growth of the marine industry in a given country. The project to establish the Kenya Maritime College ('KMC') has been driven by the Kenyan government, which has been challenged by the growth of the marine industry in Korea. This study aims to the development of curriculum for the navigation science department of the KMC. To do this, firstly the Kenyan environments was surveyed. Then, IMO maritime education requirements, IMO model courses and curriculums from the navigation science departments of major maritime universities around the world were reviewed. Lastly, based on these surveys and reviews, curriculum for the navigation science department of the KMC was developed. This curriculum is comprised of an educational course that requires a total of 5 years of study, including 1 year of on-board training and a total of 200 credit hours (20 credit hours per semester). Although this curriculum has been developed to fit the environments of Kenya, it is expected to offer a point of reference for similar studies in other countries with the goal of standardizing maritime education internationally.
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홍준기,김무성,이선일,정용태,김수천,심재홍,Hong, Joon Ki,Kim, Moo Seong,Lee, Sun Il,Jung, Yong Tae,Kim, Soo Chun,Sim, Jae Hong 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.8
Objectives : With recent improvements in neuroimaging and the development of third and fourth-generation radiosurgical dose-planning soft ware, came a renewed interest in using radiosurgery for the treatment of movement disorders. Radiosurgery involves no opening of the cranium and no incisions, eliminating both the risk of hemorrhage from passing an electrode to the depths of meningitis from operative infection. It is for these reasons stereotactic radiosurgical treatment of movement disorders has value in a small subgroup of patients. The authors report four cases of Parkinson's disease and one case of dystonia that were treated by Gamma knife. Methods : Radiosurgical nucleus ventralis intermedius thalamotomy using the gamma knife unit was performed to make lesion in two Parkinson's disease patients. A radiation dose of 120Gy was delivered to nucleus using a single 4-mm collimator plug pattern following classic anatomical landmarks. Patients were followed for a median of 10.5 months(range 9-12 months). An independent neurological evaluation of tremor, based on the change in the United Parkinson's Disease Rating Scale tremor score(UPDRS), was correlated with a subjective evaluation. Gamma knife ventrolateral(V.O.P) thalamotomy was performed in one case of dystonia. A central dose of 150Gy was delivered and the patient was followed for 18 months. Gamma knife globus pallidus interna pallidotomy was performed in two Parkinson's disease patients. A radiation dose of 130Gy(range 120-140Gy) was delivered. Patients were followed for a median of 13 months(range 9-14 months). Result : Ventrolateral thalamotomy in dystonia produced regained left hand usage in order to be able to use the telephone. Ventralis intermedius thalamotomy produced an excellent improvement of the tremor in one case, mild improvement of the tremor in the other case of Parkinson's disease. A globus pallidus internalis(GPi) pallidotomy produced improvement of rigidity and dyskinesia : one other showed no change. There were no neurological complications. Conclusion : Gamma Knife thalamotomy considered a safe and effective technique for the treatment of tremor in Parkinson's disease. Although the results from Longer follow-up is not available yet, the short-term results seem to be encouraging.
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Prostaglandin $F2{\alpha}$ 투여가 수퇘지의 성행동과 정액 채취 훈련에 미치는 영향
홍준기,유재원,조규호,김명직,박준철,김인철,정일병,Hong, Joon-Ki,Ryu, Jae-Weon,Cho, Kyu-Ho,Kim, Myung-Jick,Park, Jun-Chul,Kim, In-Cheul,Jung, Il-Byung 한국수정란이식학회 2009 한국동물생명공학회지 Vol.24 No.1
Prostaglandin $F_2{\alpha}$ ($PGF_2{\alpha}$) can facilitate release of epinephrine from the adrenal gland. The objective was to extend these findings and determine the effects of $PGF_2{\alpha}$ on sexual activity and semen collection training in sexually inexperienced boars. Boars (n=32; $281{\pm}18$ days of age) were moved individually once weekly to a semen collection room equipped with an artificial sow. Before entering the semen collection room, boar received i.m. treatments of $PGF_2{\alpha}$ at doses of 5 (n=8), 10 (n=8), or 20 (n=8), and control boar (n=8) were not treated. Reaction time (elapsed time after entering collection pen until the start of mounting) for boars receiving 5mg ($3.3{\pm}0.9\;min$), 10mg ($3.3{\pm}0.8\;min$) $PGF_2{\alpha}$ was shorter (p<0.05) than for controls ($6.7{\pm}0.9min$). Duration of ejaculation (min) per session was longer (p<0.05) for $PGF_2{\alpha}$ (10 mg, 20 mg)-treated boars ($7.3{\pm}0.7\;min$, $6.9{\pm}0.7\;min$), compared to control ($3.4{\pm}0.8\;min$). The number of training session per boars was less (p=0.056) for $PGF_2{\alpha}$ 10mg-treated boars ($1.0{\pm}0.4$), compared to control ($2.0{\pm}0.4$). Semen characteristic such as volume, concentration, the number of total ejaculated sperm, were similar for $PGF_2{\alpha}$-treated and controls. There was no apparent difference on sperm movement characteristics (Mot: motility, VCL : curve linear velocity, VSL : straight line velocity, VAP : average path velocity, LIN : linearity) after semen preservation by collected with or without $PGF_2{\alpha}$ treatment. In summary, administration of $PGF_2{\alpha}$ in boars increased the sexual activity and facilitated the training boars to mount an artificial sow for semen collection, but did not affect semen characteristic.
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다양한 계통의 옥수수 미성숙배로부터 캘러스 유도와 식물체 재분화
홍준기,박기진,이강섭,김둘이,김주곤,이승범,서은정,이연희,Hong, Joon Ki,Park, Ki Jin,Lee, Gang-Seob,Kim, Dool Yi,Kim, Ju-Kon,Lee, Seung Bum,Suh, Eun Jung,Lee, Yeon-Hee 한국식물생명공학회 2017 식물생명공학회지 Vol.44 No.1
옥수수의 최적 조직 배양 조건을 확립하기 위하여 옥수수 국내 5 계통과 국외 11 계통 총 16 계통을 포트와 포장 재배하여 미성숙 배를 분리하여 배발생 캘러스 유도 및 식물체 재분화율을 조사하였다. MS 배지에 auxin으로 1.5 mg/L Dicamba와 0.5 mg/L 2,4-D 가 첨가된 배지에서 캘러스 형성은 본 실험에 사용된 옥수수 계통 모두에서 높은 빈도로 유도되었으며, 캘러스로부터 식물체 재분화는 5mg/L zeatin이 첨가된 재분화 배지에서 높은 재분화율을 보였다. 또한 포장에서 재배된 옥수수로부터 미성숙 배를 분리하여 사용하였을 때 캘러스 유기 및 식물체 재분화 효율이 높았던 것으로 보아 미성숙 배를 분리하기 위한 옥수수 상태 및 genotype이 중요한 영향을 준다는 것을 알 수 있었다. 본 실험을 통하여 배 발생 캘러스 형성 및 식물체 재분화 효율이 조사된 옥수수 계통들은 생명공학 기술을 활용한 신품종 개발을 위한 형질전환 시스템 개발에 유전자원으로 활용될 수 있는 정보를 제공할 것으로 사료된다. We investigated the callus induction and plant regeneration ability of 16 maize genotypes, including the Korean inbred lines, using 9 to 15 day-old immature zygotic embryos from maize grown in pots and from field cultures. Immature zygotic embryos placed on MS medium supplemented with L-proline 0.7 g/L, MES 0.5 g/L, Dicamba 1.5 mg/L, 2,4-D 0.5 mg/L, $AgNO_3$ 4 mg/L, and sucrose 20 g/L, showed the highest frequency of callus induction. The highest number of shoots regenerated when the embryogenic callus were transferred to MS medium supplemented with 5 mg/L zeatin. The root formation was observed when shoots were grown on MS medium supplemented with 0.2 mg/L indole-3-butyric acid (IBA). Additionally, under the same culture conditions, immature zygotic embryos from maize grown in the field also had a high frequency of plant regeneration. Except one genotype, 15 genotypes showed callus induction and shoot regeneration. Among the 16 genotypes tested, H99, B98, HW3, and B73 yielded the best plant regeneration. H99 showed maximum shoot formation from the primary embryogenic callus. The results suggest that genotypes and growth conditions of the maize plant plays very important roles for enhancing the embryogenesis competence of immature zygotic embryos. The successful regeneration from immature zygotic embryos of maize inbred lines provides a basis for molecular breeding of new cultivars by genetic transformation.
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홍준기,Hong, Jun-Gi 한국과학기술단체총연합회 1971 과학과 기술 Vol.4 No.4
1.서론 2.대륙붕유전의 개요 A.continental shelf B.continental Slope C.continental ridge 3.미국의 해저석유생산의 현황 A.개론 B.매장량과 생산능력 C.탐사와 개발 D.core drilling E.개발 F.생산 G.운반 4.OCS 유전에 대한 개발문제 5.Off shore 작업의 기술의 발달
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홍준기(Joon-Kee Hong) 중앙대학교 중앙철학연구소 2011 철학탐구 Vol.29 No.-
이 논문은 최근 국내에서도 많이 연구되고 있는 도시에 대한 인문학적 연구 방법론을 모색하고자 한다. 전통적으로 도시는 사회과학자들을 통해 이루어졌을 뿐만 아니라, 맑스주의자들에 의해 본격적으로 연구되기 시작했기 때문에 다분히 경제환원주의적 연구가 큰 흐름을 이루었다. 이 논문은 이러한 한계를 극복하고 비환원주의적인 인문학적 도시연구 방법론을 수립하기 위해 짐멜과 조나단 프리드먼의 이론을 소개, 분석, 비판한다. 프리드먼으로부터는 세계화 시대의 도시인들의 다양한 문화적 정체성이 어떻게 형성되며 그것들이 어떤 상관관계를 맺고 있는지, 그리고 그 다양한 문화적 정체성이 갖는 사회, 문화적 의미를 발견한다. 짐멜에서는 도시라는 물리적 한계를 너머 존재하는 총체적 요소의 집합이라는 변증법적 도시이론을 발견하고 더 나아가 프리드먼과 짐멜의 이론을 정신분석과 결합시킴으로써 이 논문은 도시인문학의 방법론이 취해야 할 방향을 모색한다. This paper aims to find out the research method based on the humanites about the cites which are frequently being studied recently in Korea. Because traditionally the cities have been studied by the social scientist and the urban studies became the specific themes of modern society through the marxist theorists, the economic-reductionistic method has been the main stream until now. This paper introduce, analyse and criticize the theories of Simmel and Friedmann with also focusing on the epistemological arguments of Althusser and Lacan in order to overcome such a problem. After critically reviewing the methodological problems which began with the works of the Chicago school(Wirth, Park etc.), this paper tries to gain from Jonathan Friedmann the insightful answer, which explains how the cultural identities in the globalized metropolis and which relations they have to each other, and from Simmel we extract the dialectical urban theory which is very compatible with the psychoanalytical approach to the epistemology and humanities, and finally try to find out the non-reductionist method for the urban humanities.
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