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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.
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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.
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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.
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地域醫療施設의 供給水準에 關한 硏究 : 韓國과 日本의 比較分析
金漢洙,孔章杓 嶺南大學校 環境問題硏究所 1990 環境硏究 Vol.10 No.1
The purpose of this study is to acquire basic data of relief from interregional gap when planner establishes supplement program of Medical facilities trough relative analysis of Medical facilities in Korea and Japan. The result is this : 1. In Medical level, region exists 1-2 Medical facility is 「Rural form」and region exist more than 3 medical facility is 「Urban form」. 2. We know that Korea medical service level is lower than Japan's. 3. Establish clear-cut lines of Minimum unit of population in Medical facilities. 4. By taking advantage of theoretical Model, result of Analysis present a method of assess medical service facility in relation to population size.
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「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.
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김영경,문혁수,정재연,한수진,이병진,김은경,정혜련 韓國學校保健學會 2001 韓國學校保健學會誌 Vol.14 No.1
The purpose of this study was to collect basic data for the development of effective oral health education program in elementary school. The subjects in this study were 604 fourth-year, fifth-year and sixth-year students of an elementary school in Seoul. Oral health awareness and behaviors were surveyed and analyzed. The findings of this study were as follows: 1. The most common time for toothbrushing was after dinner(62.0%) and before bedtime(62.3%). By school year, the largest number who brushed their teeth after dinner were fourth and fifth graders while the greatest number who did so after breakfast were sixth graders Seventy-four percent of respondents brushed the teeth twice or more a day. By school year, the fifth-year students brushed their teeth the least while girls outperformed the boys in daily toothbrushing frequency(p<0.05). Regarding the intake of cariogenic food, 62.1% took that kind of food once or more a day. By school year, the fifth graders took the most (p<0.05), and girls took more cariogenic food than the boys(p<0.05). 2. Ninety percent of the respondents had visited a dental clinic. By grade, the sixth-year students had visited a dental clinic more frequently and girls more frequently than boys. Eighty percent of the respondents visited a dental clinic to receive treatment but just 12.3% visited a dental clinic to prevent oral diseases. Concerning the fetor of dental treatment only 14.4% expressed fear. School year made no difference, yet the percentage of girls who experienced fear was higher than that of boys(P<0.05). Regarding preventive treatment, 39.7% experienced pit and fissure sealing and 24.2% experienced the application of fluorides. All the students hadn't much experience in preventive treatment regardless of school year -- gender didn't make a difference. 3. Fourty-six percent of respondents had a preference for the fluoride mouth rinsing program; 38.4% wanted that grogram to continue. As to the reason for preference, 38.2% preferred it because of the prevention of dental caries, 43.0%, the largest percentage, didn't favor it because they found it too much trouble to do(some of the respondents gave two different answers). 4. Despite an increase in the frequency of toothbrushing at the right time, they still took cariogenic food frequently Their visit to a dental clinics also aimed at treatment more than at prevention, and they had very narrow experience of preventive treatment. Furthermore, the fluoride mouth rinsing program failed to draw their interest. Therefore, it is recommended that a successful real health education program should be developed.
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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.
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