又峰 趙熙龍의 梅花圖

金志善(Kim Jisun) 미술사연구회 2007 미술사연구 Vol.- No.21

In the Late Joseon Dynasty, the cultural environment of the capital, Hanseong, was clearly different from that of other provinces, and connoisseurship became popular among admirers of antique works of Chinese calligraphy or paintings seeking to express their loftiness and refinement. Moreover, the demand for artistic works increased greatly. Most studies have estimated that Jo Huiryong(1789~1866), a painter who was well-known for his plum blossom paintings in the 19th century, was influenced by Kim Jeonghui. Although Kim Jeonghui was an influential leader among painters, the works of middle class artists including Jo seem to have been painted to suit the taste of collectors. Jo's plum blossom paintings show richer and more magnificent pictorial images, unlike the classical literati representatives of Kim's. Because Jo rarely dated his own works, it is difficult to categorize them chronologically. As such, this study classifies almost all of his works by size and categorizes them vertically hanging scrolls of plum blossoms, small size leaf paintings, and panoramic view of plum blossoms in a form of screen panels. In his narrow vertical type of works, Jo attempted to express a sense akin to stone inscription calligraphy, by representing the twisted branches of plum trees with strong, sharp, and straight lines similar to the calligraphic style. He also painted many small leaf paintings using ink in an improvised painting style of the classical literati. Moreover, he started to produce huge panoramic plum screen panels for the first time during the Joseon period. In particular, Jo's panel works are characterized by their grand size and spectacular images. He focused on the expressive potentials of brush and ink, projecting his personal interpretation of the painted subject. Jo adapted the style of the Yangzhou School while developing his own style, and became influential among his contemporaries and to the painters of the next generation. Jo's plum blossom paintings are not only emblems of the literati's classical painting but also ideal ink plum images that represent the artist as a solitary creator.

김춘수 시의 환유적 읽기

김지선 ( Ji Sun Kim ) 한국언어문화학회 2001 한국언어문화 Vol.19 No.-

This characterizes the Kim chun-su`s poem Duˇl-rim, Dostoevski(1997) and chair and stairs(1999)-through metonymic reading. The 1990`s is the period that postmodern symptoms conspicurously appear in arts and culture. His poems have both contemporary universality, which is postmodern and the experimetal mind that the very method of composing a poem show a thought. The postmodrn symptoms in his poems is shown off in deconstructing aspect. The deconstruction in a formal aspect-deconstructing a discription system and a completed narration-indicates the recognition that the universe is indeterminable, incidental and relative. If metaphor and metonymy are extended as one of the ways recognizing this universe, his poems show the metonymic recognition. D??l-rim. Dostoevski has intertxstuality with Dostoevski`s novels and poems prior to Kim. Kim`s poems have a unique description system which delays meanings. It removes `Signified` and `Signified` turns another `Signifer`. This description system reflects the aspects that the meanig is open, not finished. In chair and stairs, the historical and ordinary narration has no totality. A metonynic image intrudes, breaking and transferring a poetic meanig and acts as fragmenting the narration. Tihs means a denial of history.

상악동 골이식술을 동반한 임플란트 식립 시 골이식재의 높이 변화에 대한 방사선학적 평가

김지선,이서경,채경준,정의원,김창성,최성호,조규성,채중규,김종관,방은경,Kim, Ji-Sun,Lee, Seo-Kyoung,Chae, Gyung-Joon,Jung, Ui-Won,Kim, Chang-Sung,Choi, Seong-Ho,Cho, Kyoo-Sung,Chai, Jung-Kyu,Kim, Chong-Kwan,Pang, Eun-Kyoung 대한치주과학회 2007 Journal of Periodontal & Implant Science Vol.37 No.2

The edentulous posterior maxilla generally provides a limited amount of bone height because of atrophy of the ridge and pneumatization of the maxillary sinus, Maxillary sinus augmentation is one of the surgical techniques for reconstruction of the severely resorbed posterior maxilla. The purpose of this study was to evaluate the survival rate of implants and the long-term changes of graft height after maxillary sinus augmentation by lateral window approach. From September 1996 to July 2004, maxillary sinus augmentation with mixed grafts of autograft, allograft, xenograft and alloplast were performed on 45 patients and 100 implants were placed. We evaluated the survival rate of implants and the changes of BL(bone length)/IL(implant length) according to time using panoramic radiographs. The survival rate of implants was 91.0% for follow-up period. The mean reduction of graft heights was 0.34mm(3.0%) for 6 months and 1.22mm(1O.66%) for 3 years after augmentation. The total mean BL/IL was $1.34{\pm}0.21$ during 5 year observation period after augmentation and decreased slightly over time. The result means that graft materials were stable above the implant apex. BL/ILs of 1stage procedure were significantly decreased at 1-2 year, 3-4 year after augmentation and no statistically significant changes were observed in those of 2 stage procedure. The graft materials of both procedures were stable above the implant apex. No statistically significant changes of BL/IL were observed in the grafts combined with low amount of autogenous bone or without autogenous bone. The graft materials of both groups were stable above the implant apex. The results indicated that the placement of dental implants with maxillary sinus augmentation showed predictable clinical results and the grafts combined with low amount of autogenous bone or without autogenous bone had long-term resistance to resorption in maxillary sinus.

GMA 위보기 및 수직자세 초층용접 최적조건 선정에 관한 실험적 연구

김지선,김인주,김일수,Kim, Ji-Sun,Kim, In-Ju,Kim, Ill-Soo 대한용접접합학회 2012 대한용접·접합학회지 Vol.30 No.6

Due to increase in demand of stable and long pipelines in natural gas industry, wide range of researches are being performed on automation welding to improved welding quality with respect to weld process parameters in real time measurement. In particular, the coupling between the pipe manufacturing process and location of the weld seam, the measured size of the gap that exists in the weld position and the weld angle depending on whether the movement of molten weld. This is due to absence of controlling welding penetration position, depending on the required size of the angle of the setting. In addition, the optimum welding conditions must be considered while selecting, the correlation between these variables and the systematic correlation has not yet been identified. Therefore, in most welded pipe root-pass weld solely depends on the experience of workers in relation to secure a stable weld quality. In this study, automation welding system is implemented to select a suitable root-pass STT (Surface Tension Transfer) welding method using the optimal welding conditions. To successfully accomplish this objective, there were various welding conditions used for welding experiment to confirm that the assessment required for construction through the pipe and automatic welding process is proposed to optimize this plan.

Influence of internal connection length on screw loosening in internal connection implants

김지선,박영범,최현민,김성태,김현철,김선재,문홍석,이재훈,Kim, Ji-Sun,Park, Young-Bum,Choi, Hynmin,Kim, Sungtae,Kim, Hyeon Cheol,Kim, Sun Jai,Moon, Hong-Seok,Lee, Jae-Hoon The Korean Academy of Prosthodonitics 2017 대한치과보철학회지 Vol.55 No.3

목적:본 연구에서는 long internal connection 형태의 임플란트 지대주를 내부 연결 길이에 변화를 주어 임플란트-지대주 결합부의 안정성을 비교 평가해 보고자 하였다. 재료 및 방법: Long internal connection의 임플란트(Replus system, $4.7{\times}11.5mm$)를 각각 지대주의 길이에 따라 4개의 군(1, 2, 3, 4 mm 군)으로 나누었고 총 20개의 시편을 사용하였다. 시편을 레진에 매몰하여 고정시키고 100 N의 힘으로 임플란트 장축에 대해 30도의 각도에서 $1.0{\times}10^6$ 번의 반복하중을 가한 후 하중 전 후의 풀림회전력의 차이를 계산하여 95% 유의수준에서 Kruskal-Wallis 검정 방법을 통해 통계 분석하였다. 결과:지대주 내부 길이에 따른 풀림 회전력의 통계적 유의성은 나타나지 않았으며 (P > .05) 어떤 시편에서도 완전한 나사 풀림이나 나사 파절은 관찰되지 않았다. 결론: 내측 연결 임플란트에서 지대주 내부길이에 따른 나사 풀림의 정도는 차이가 나지 않았다. Purpose: The purpose of this study was to evaluate whether the internal abutment length affected screw stability in an internal connection implant. Materials and methods: Twenty long internal connection implants (Replus system, $4.7{\times}11.5mm$) were selected for this investigation. Abutments were assigned to four groups depending on the length of the internal connection (abutments with internal lengths of 1, 2, 3, and 4 mm, respectively). Each implant fixture specimen was embedded in resin medium and connected to an abutment with an abutment screw. A load of 100 N, applied at an angle of $30^{\circ}$ to the long axis of the implant, was repeated for $1.0{\times}10^6$ cycles. Reverse torque values (RTV) were recorded before and after loading, and the change in RTV was calculated. Data were analyzed with the Kruskal-Wallis test. Results: The change in RTV was not significantly different among the groups (P>.05). Screw loosening and fractures were not observed in any groups, and joint stability was maintained. Conclusion: The internal length of the abutment may not significantly affect the degree of screw loosening.

DEA-Tier를 이용한 국내 지식기반 건축서비스업의 혁신 성과 개선에 관한 연구 - 건축설계사무소를 중심으로 -

김지선,이훈구,이윤선,김재준,Kim, Ji-Sun,Lee, Hoon-Ku,Lee, Yoon-Sun,Kim, Jae-Jun 한국건설관리학회 2013 한국건설관리학회 논문집 Vol.14 No.2

지식서비스 산업은 지식의 생산, 가공, 활용을 통하여 부가가치를 창출하는 산업을 말한다. 지식 서비스 산업은 다른 서비스 산업에 비해 혁신 지향적이고 타 분야에 미치는 영향이 큰 특성을 지니지만, 이에 대한 연구는 미미한 실정이다. 본 연구에서는 지식 서비스를 창출하는 설계사무소의 기술 혁신의 필요성을 제기하며 건축설계사무소의 혁신 성과를 효율성 측면에서 분석하였다. DEA-Tier분석을 이용하여 건축설계사무소의 효율성의 크기에 따라 분류하고, 효율성 격차가 현저한 건축설계사무소들에게는 단기적, 중기적, 장기적인 관점에서의 실질적인 벤치마킹 경로까지 제시하여 향후 설계서비스업의 효율성 제고 전략 수립에 필요한 방법론을 제시하였다. Knowledge-based Service Industry is an industry that creates added value through the production, processing, and use of knowledge. Comparing to other service industries, it is innovation-oriented business endeavors having the characteristics that exert the great influences on other fields. Meanwhile, however, research efforts thereof are yet insignificant. In this study, we analyzed the innovation performance of architectural design office which creates knowledge services, having raised the necessity of innovation of the design office. The innovation performance were classified according to the extent of efficiency of the architectural design office making use of DEA-Tier analysis, and, for those architectural design offices that showed significant differences in efficiency, we presented the case studies of the firms that were substantial benchmarking targets from short, medium, and long-term perspectives.

5G 코어 네트워크 기술 동향 분석

김지선,송종태,김정환,정희영,Kim, J.S.,Song, J.T.,Kim, J.H.,Jung, H.Y. 한국전자통신연구원 2013 전자통신동향분석 Vol.28 No.6

향후 2020년경에는 현재보다 훨씬 빠른 5세대(5G) 이동통신이 도래할 것으로 예상하고 있다. 현재 5G에 관해서는 EU를 중심으로 여러가지 선행 연구 프로젝트가 진행되고 있는 수준이며, 아직까지 본격적으로 활동하고 있는 국제 표준화 그룹은 없다. 무선 접속(RAN: Radio Access Network) 부분에서는 몇몇 5G 후보 기술을 도출하는 등 나름대로 표준화 방향이 제시되고 있지만, 코어 네트워크(CN: Core Net) 부분에서는 그 활동이 미미한 실정이다. 본 논문은 5G 이동통신의 일반적인 요구사항 및 비전을 살펴보고, 5G 코어 네트워크부분에 대한국내외 연구개발 동향과 주요 요소 기술의 동향을 분석한다.

송어 간세포와 생쥐 간세포에서 TCDD가 CYP1A1 유전자 발현에 미치는 영향 비교 연구

김지선,민경난,신윤용,Kim, Ji-Sun,Min, Kyung-Nan,Sheen, Yhun-Yhong 한국환경성돌연변이발암원학회 2004 한국환경성돌연변이·발암원학회지 Vol.24 No.3

In mammalian, cytochrome P4501A1 (CYP1A1) is very important for metabolism of xenobiotics such as PAHs(Polycyclic aromatic hydrocarbon) and heterocyclic amine, and it is induced by environmental contaminants such as PAHs, TCDD(2,3,7,8-tetrchlorodibenzo-p-dioxin) and 3-MC (3-methylcholanthrene). In fish, like mammalian, when it is exposed to environmental contaminants, they cause specific and sensitive induction of CYP1A. Therefore, induction of CYP1A in fish and mammalian is widely used as a biomarker for exposure of environmental contaminants. In this study, to compare the function of Cyp1a1 in fish with it in mammalian, we have used rainbow trout(Oncorhynchys mykiss) hepatoma cells (RTH-149) and mouse hepatocyte (Hepa-I). in order to examine induction of Cyp1a1 by TCDD, we have used the bioassay system. We examined effects of TCDD on the Cyp1a1-luciferase reporter gene activity, 7-ethoxyresorufin O-deethylase(EROD) activity and Cypa mRNA level.

민 기업의 위성 통신 사업 현황과 전망

김지선,Kim, Ji-Seon 한국위성정보통신학회 1999 위성통신과 우주산업 Vol.7 No.3

무궁화 위성을 이용한 위성 서비스에 대하여 국내의 민간 기업들의 서비스 형태를 분석하고 향후 위성 통신사업의 발전방향을 모색한다.

GMA 용접공정을 이용한 오픈갭 수평고정관 초층 용접의 실험적 연구

김지선,김일수,박창언,나현호,이지혜,정성명,Kim, Ji-Sun,Kim, Ill-Soo,Park, Chang-Eun,Na, Hyun-Ho,Lee, Ji-Hye,Jung, Seong-Myeong 대한용접접합학회 2011 대한용접·접합학회지 Vol.29 No.3

Since welding process for most pipelines with large diameter has been carried out by the manual process, automation of the welding process is necessary for the sake of consistent weld quality and improvement in productivity. Therefore the development of the optimized algorithm to decide the welding condition is an effective technique to prove the feasibility of interface standards and intelligent control technology to increase productivity and reduce the cost of system integration. In this study, the pipe welding experiment has been carried out using plused GMA welding process to select optimal welding condition. And necessary information in root-pass welding has been obtained by applying in the pipeline using the selected welding conditions through the welding experiment.