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김성수,이동희,황부근,신말순,배종진,윤진환,지용석,안희구 한국특수체육학회 2002 한국특수체육학회지 Vol.10 No.2
The purpose of this study was to analyzed the aerobic capacity of disability· able-bodied wheelchair basketball players. Cardiorespiratory parameters were measured during graded maximal exercise test. Exercise time, HRpeak, oxygen uptake(VO_2, L·min^-1, ml·min^-1·kg^-1), carbon dioxide production(VCO_2, L·min^-1), ventilation(L·min^-1) were examined in disability national elite male wheelchair basketball at letes(DA, N = 10), able-bodied wheelchair basketball athletes(AA, N = 10). All data were expressed in means and standard deviation. Exercise time, HRpeak, oxygen uptake, carbon dioxide production, ventilation were not different between groups. In conclusion, aerobic capacity of disability national elite male wheelchair basketball athletes is the same able-bodied wheelchair basketball athletes. These finding suggest that chronic wheelchair basketball training produce local adaptations in the functional upper body musculature.
김웅철,이원철,손영석,오세윤,김부섭,유진호,김지환 한국보건의료인국가시험원 2005 보건의료교육평가 Vol.2 No.1
This study prepared a basic framework for the development and improvement of Korean Dental Technicians' Licensing Examination, based on actual test questions. A peer review was conducted to ensure relevance to current practices in dental technology. For the statistical analysis, 1000 dental laboratory technicians were selected; specialists in dental laboratory technology (laboratory owners, educators, etc.) were involved in creating valid and reliable questions. Results indicated that examination subjects should be divided into three categories: basic dental laboratory theory, dental laboratory specialties, and a practical examination. To ensure relevance to current practice, there should be less emphasis on basic dental laboratory theory, including health-related laws, and more emphasis on dental laboratory specialties. Introduction to dental anatomy should be separated from oral anatomy and tooth morphology; and fixed prosthodontics should be separated from crown and bridge technology and dental ceramics technology. Removable orthodontic appliance technology should be renamed 'orthodontic laboratory technology'. There should be less questions related to health related law, oral anatomy, dental hygiene, dental materials science and inlay, while the distribution ratio of questions related to tooth morphology should be maintained. There should be a decrease in the distribution ratio of questions related to crown and bridge technology, dental ceramics technology, complete dentures and removable partial dentures technology, and orthodontic laboratory technology. In the practical examination, the current multiple choice test should be replaced with tooth carving using wax or plaster. In dental laboratory specialties, subjects related to contemporary dental laboratory technology should be included in the test items.
서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1997)
김재홍,문득곤,김정수,김용준,임동진,박상훈,김희성,이민수,송기훈,김갑형,김형석,성소영,이인섭,김석우,황지환,조창근,김경문,부태성 대한화학요법학회 2000 대한화학요법학회지 Vol.18 No.3
Background : In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. Objective & Methods : For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results : In 1997. 99 strains of N. gonorrhoeae were isolated, among which 45(45.5%) were PPNG. Conclusion : The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 45.5% in 1997.
서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)
김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2
Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.
The Mechanical Properties of TiN Films Grown by a Pure N<sub>2</sub> Plasma Sputtering
Jang, Bu Seong,Lee, Chang Hyun,Choi, Jae Woong,Kwon, Ji Seon,Kim, Ha Kyung,Park, Chang Hwan,Kim, Hwa Min Trans Tech Publications, Ltd. 2016 Materials science forum Vol.878 No.-
<P>Titanium nitride (TIN) films were prepared by using rf magnetron sputtering technique. The films were deposited by a pure N2 plasma sputtering. Their mechanical properties, such as nanoindentation hardness, friction coefficient, and wettability have been investigated. XRD studies revealed that the orientation of TiN films changes toward the (111) orientation with decreasing working pressure due to a strong compressive stress during deposition . The strongest TiN(111) orientation is found when the film is deposited at working pressure of 1pa. This film shows a largest hardness of 15 GPa and a smallest friction coefficient of 0.17. This film was also found to be accompanied by a water-repellent surface with a water contact angle more than 100<SUP>°</SUP></P>
전압 변동률을 고려한 수도권 전압안정화 다단계 부하차단 적용 방안 (pp.179-180)
이윤환(Yun-hwan Lee),김태균(Tae-gyun Kim),김지훈(Ji-hun Kim),이병준(Byongjun Lee),강부일(Bu-il Kang),조종만(Jong-man Jo) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
계통에 외란이 발생하면 전압 붕괴 현상으로 이어져 제어 될 수 없는 부하손실이나 캐스케이딩 현상의 형태로 발전 될 수 있다. 심각한 경우에 광역정전으로 확대되는 문제점이 생기는데, 이를 방지하기 위한 방안으로 최소한의 부하차단을 통하여 계통을 안정화시켜야 하며 불필요한 부하차단을 방지하기 위한 부하차단 다단계화가 수행 되어야 한다. 본 논문에서는 모선 전압의 민감도에 따른 적정한 부하차단 개소를 선택하였으며 부하차단 의사결정 방안으로 전압 변동률을 고려하여 다단계 부하차단 방안을 검토하였다. 전압변동율의 계산을 위하여 Least square 기법이 적용되었으며 2008년도 하계 최대부하 계통에 대한 동적 해석을 수행하였고, 계통 해석 결과를 바탕으로 이전에 제안 된 방안들에 비하여 향상되고 발전된 효율적인 저전압 부하차단 방안에 대하여 논의하였다.