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      • 고온에서 HAN 계열 추진제 액적의 거동에 대한 연구

        황창환(Chang Hwan Hwang),백승욱(Seung Wook Baek),한조영(Cho Young Han),김수겸(Su Kyum Kim),전형열(Hyung Yeol Jeon) 한국연소학회 2012 KOSCOSYMPOSIUM논문집 Vol.- No.45

        The droplet behavior of 83.9 wt.% HAN water solution was investigated experimentally with various ambient temperature and nitrogen environment. At the initial stage of evaporation under thermal decomposition temperature of HAN, gradual decreasing of droplet diameter was observed. After that, the droplet started to expand due to the internal pressure build up by water nucleation inside the droplet. The micro explosion was observed at higher temperature than the decomposition temperature of HAN and the remaining droplet showed similar behavior of single composition droplet. The decreasing rate was augmented as the ambient temperature increasing.

      • KCI등재후보

        신장이식 환자에서 HCMV 항원혈증 검사의 임상적 유용성

        김탁,성흥섭,박관태,김송철,김성한,최상호,김양수,우준희,박수길,한덕종,이상오 대한감염학회 2009 감염과 화학요법 Vol.41 No.2

        Background : This study was performed to determine the cut-off value and the predictability of symptomatic human cytomegalovirus (HCMV) infection according to the peak value of HCMV antigenemia assay in kidney transplant recipients. Materials and Methods : We reviewed the results of HCMV antigenemia assay (Chemicon, CA, USA) in patients who received kidney transplantation at our institution from May 2003 through May 2008, and investigated the existence and the type of HCMV infection by the medical record review. Patients who underwent the test only once during the episode or those who received ganciclovir for more than 48hrs before the test were excluded. The receiver-operator characteristic curve was drawn and the point showing maximum likelihood ratio (LR) was chosen as the cut-off value of symptomatic HCMV infection. Results : A total of 689 episodes were screened and 134 episodes were enrolled. Thirty-three (24.6%) episodes were symptomatic HCMV infection, 23 (17.2%) episodes were associated with HCMV syndrome, and 10 (7.5%) episodes were tissue-invasive diseases. The maximum LR was 7.5 (95% confidence interval, 4.014.2) and the cut-off value was 29.5 cells/200,000 WBC. The sensitivity, specificity, Positive predictive value, and negative predictive value were 66.7%, 91.1%, 71.0%, and 89.3%, respectively. Conclusions : The cut-off value of symptomatic HCMV infection by the peak value of HCMV antigenemia assay in our study was similar with previous results, although the sensitivity was relatively low.

      • KCI등재후보
      • KCI등재후보

        한강하구지역에서 월동하는 재두루미(Grus vipio)의 개체군 감소

        이화수(Hwa-Su Lee),신주열(Ju-Yeol Shin),이시완(Si-Wan Lee),강태한(Tae-Han Kang),윤순영(Soon-Young Yoon),김정수(Jungsoo Kim) 한국조류학회II 2012 한국조류학회지 Vol.19 No.4

        김포시와 고양시 일대의 한강하구 지역은 우리나라에서 재두루미의 가장 중요한 월동지 및 중간기착지로 알려져 있지만, 이 지역의 조류 서식환경은 심각한 개발압력과 인간의 간섭으로 인해 지속적으로 나빠지고 있다. 따라서 본 연구에서는 2007-2008년과 2011-2012년의 월동시기에 본 지역에 도래하는 재두루미를 대상으로 월동 개체군 크기 변화와 월동지역 내에서 과거와 현재의 취식지역 이용 현황 등을 조사하여 개발행위가 이들의 서식에 미치는 영향을 확인하였다. 본 지역에서 월동하는 재두루미 개체군은 평균 124.9개체(2007-2008년)에서 59.0개체(2011-2012년)로 감소하였으며, 주요 취식지역에서 확인된 개체수는 평균 77.7개체에서 24.1개체로 감소하여 월동개체군의 감소폭에 비해 주요 취식지역의 이용 개체수의 감소폭이 더 크게 나타났다. 유형별 분석에서는 가족군에 비해 무리군의 개체수가 많이 감소한 것으로 나타났으나, 홍도평 지역의 가족군 이용 개체수는 변화가 나타나지 않았다(Mann-Whitney test. Z=-0.26, p=0.979). 그리고 과거 다수의 재두루미가 주요 취식지역으로 이용하였던 송포동과 평동지역은 2012-2013년 조사에서는 거의 이용하지 않는 것으로 나타났다. 이는 위 지역의 개발행위(예: 제 2자유로 건설 등)와 깊은 연관성이 있는 것으로 생각된다. Han-river estuary in Gimpo and Goyang city is well known as one of the most important wintering and stopover sites for migrating White-naped Crane (Grus vipio) in Korea. Nowadays, habitat quality of this area is getting worse due to serious development pressure and high human disturbances. So, we wanted to know whether development actions affected total wintering population change in Han-river estuary and feeding group pattern of White-naped Crane in main feeding habitats between the 2007-2008 and 2011-2012 wintering period. Average wintering population was decreased 124.9 to 59.0 and population of main feeding site also decreased 77.7 to 24.1. But decrease rate of main feeding site population was higher than total wintering population. Non-family feeding population was more decrease than family feeding population in the flock type analysis. But family feeding population of Hongdopyong was maintained from past and present (Mann-Whitney test. Z=-0.26, p=0.979). However, almost all White-naped Crane din not use both feeding sites, Pyong-dong and Songpo-dong, where were deteriorated habitat quality by human act.

      • KCI등재

        「월미도원(月尾桃園)」-월미공원 현상설계안 : 설계방법을 중심으로 Focused on the Design Methodology

        김한배,선우성,정운수,김수연 한국전통조경학회 2003 한국전통조경학회지 Vol.21 No.3

        Wolmi Park is located at the center of so called "Tri-Port" of history, regional culture and micro ecology. The design requirements for the competition can be ranged from the coexistence of history and modern life, the accentuation of mountain and sea landscapes, the continuity of the exterior and interior, and etc. Our design proposal started the process by analyzing "six strategies" of Baljon(1992) and "design languages" discussed in the traditional landscapes. The strategies were construed into the compositional concepts found in four sequential steps of traditional dance. Therefore, the basic land use and circulation units are contrived and organized by the "four steps"('step in', 'spread out', 'fold', 'unfold') and the "languages"('10 scenes' and '13 poetic words'). The proposed plan includes some plazas near access routes, three newly made traditional gardens of palace, royal residence and villa in the central area, the viewing promenade, and the ecological pond on the outskirt of the park.

      • 배영 스타트에 관한 연구

        김한수,육현철 建陽大學校 1994 建陽論叢 Vol.- No.3

        After measuring, comparing, and analyzing the backstroke kick start and the backstroke dolphin kick start 25m of the Korean excellent backstroke 10 swimers from November 4th 1989 to November 15th 1989, the conclusions of measuring and comparing the differences between dolphin kick 3-5-7-9-and-11 times and records are as follows: 1. According to the records and observations of start by the dolphin kick frequency of 10 backstroke swimers, the best records were produced from 5 swimers when doing start by 7 times of dolphin kick, 3 swiners were from 5 tims of dolphin kick, and 2 swimers were from 9 frequencies of dolphin kick. Therefore this suggests that 7 times in dolphin kick of the Korea backstroke men' swimers be the most profitable. 2. By comparing the dolphin kick start and backsroke kick start, dolphin kick as in figure 3 was mean 14"15, and backstroke kick start was 14"52. The dolphin kick start was faster .57 seconds than the backstroke kick start. 3. According to the conclusions of observing the swimers who do well dolphin kick start, swimers should have good back flexibility if they want to do well dolphin kick start, whereas the swimers with insufficient dolphin kick start did not have back flexibility.

      • KCI등재

        1990년대의 패션과 메이크업 경향에 관한 연구

        金秀珍,韓明淑 服飾文化學會 1998 服飾文化硏究 Vol.6 No.1

        The main focus of this paper is to provide clear understanding about the concept of make-up as total fashion by defining the essential meaning of it. First, we would like to go over the concept of make-up and total fashion, then analyze the make-up image, the changes of colors and images of make-up overtime and fashion that have influenced over those changes. In this paper, we analyze the trend of fashion and make-up in 1990s and their relevancy. Through this paper we hope that make-up can be accepted as a part of total fashion in its relationship with other elements such as shoes, clothes and accessory and that it can be considered as a independent art that has direct influence on people. The trend of Spring/Summer between 1990 and 92 is the image of atural beauty and comfortable and modernistic image that can be experienced through nature, In 1992, there was a revival look of 1960s and 1970s, Make-up also followed this trend, The overall color tone was to give natural and stable images with pastel tone to soften the images, This tone brought back the ecology of 1960s. The theme of restoration in humaniy and nostalgia was reflected in clothing, and these trend changed the ecology of make-up to peace, love and romantic ecology which was expressed in coral, blue, and green tone to create intelligent image of woman. Year 1996 could be called as color revolution period that emphasized the unique and individual expression of each person, In 1997, black, pastel and brown colors were the result of reinterpreting the classic and sexy images of 1960s to natural and modernistic image of 1997, Purple color started to be introduced to us. The beginning of 1990s Fall/Winter season was based on ecology concept that emphasized the natural image. Until 1995 it appeared that spring/summer and fall/winter trend had no big difference. But from 1995 seasonal difference in trend are appeared and there were various make-up designs. In 1995, 1996, brown color lines make-up comes to mix with romantic image and developed into wine, orange, neon colors, These color were the symbol of property and sentiment and gold make-up emphasizing the eye area was the tendency of that period. In 1997, the fear of coming end of century was expressed as decadent image and at that time ethnic image, romantic image appeared with vivid color lines, gold, red and violet.

      • KCI등재

        건설정보 국제산업표준(IAI/IFC)의 2차원 확장모델 개발에 관한 연구 : 모델 스페이스에서의 형상표현 엔티티 확장 중심으로 Focusing on the Extension of the Shape Representation Entities of Model Space

        김인한,서종철,이수영,정철오 대한건축학회 2004 대한건축학회논문집 Vol.20 No.5

        This research is focused on the enhancement of capabilities for 2D data representation to the IFC (Industry Foundation This research is focused on the enhancement of capabilities for 2D data representation to the IFC (Industry Foundation of IFC is that it is impossible to represent 2D elements, essential for the presentation of drawing elements. On top of that, the drawing information in IFC format can not be exchanged among the international standard complied formats such as KOSDIC, SCADEC, and STEP-CDS which are based on STEP AP202 subset. The main purpose of this research is to enhance the existing capability of IFC to represent 2D drawing elements. To achieve this goal, the presentation resources, based on ISO 10303-46 and ISO 10303-202, are annexed to the resource layer of IFC2.X. For the representation of 2D drawings, a Layer entity, Curve_styles entity, Text entity, Symbol entity, Hatch entity, Bezier curve entity, Dimension entity have been extended to the IFC2.X.

      • 고속 Tube Expander의 동적 모델링 및 해석

        김재량,정원지,김수태,최욱환 한국공작기계학회 2003 한국공작기계학회 추계학술대회논문집 Vol.2003 No.-

        Tube expanding process is for combining a heat-sink plate with hair-pins (Cu-tube) through plastic deformation. The two parts, i, e., heat-sink plate and hair-pins are they components of a heat-exchanger for an air conditioner. This paper presents the analysis and dynamic modeling of a high-speed tube expander which integrates transfer of parts, fixing of parts, and tube expanding into one process. The 3-dimensional modeling of all the parts for the tube-expander was constructed using CATIA^(?). then the CATIA^(?) models are transferred into visualNastran^(?) to execute the 3-dimensional animation for checking prescribed cycle-time. The technique presented in this paper has been shown to be effective as a priori tool for verifying the design of a high-speed tube expander.

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