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권영규,이병욱,Kwon, Young-Kyu,Lee, Byung-Wook 대한한의정보학회 2005 大韓韓醫情報學會誌 Vol.11 No.2
The findings from this study are summarized as follows: 1. Hangul 2004 has 16,023 Chinese Character codes. Among them, 15,231 Chinese Character codes are searched by DB, the others are unsearchable codes. 2. Among 15,231 Chinese Character codes of Hangul 2004, 2,471 Chinese Character codes are converted into 2,232 Simplified Chinese Character codes by Traditional and Simplified Chinese Character Converting program in Hangul 2004. 3. The 5th edition TCM-MeSH has 6,385 thesauruses and 2,142 kinds of Chinese Characters. 4. If we use Simplified Chinese Character of Hangul 2004 to search for TCM-MeSH, we will find 94.3% of TCM-MeSH. But If we use Traditional Chinese Character of Hangul 2004 to search for TCM-MeSH, we will find only 34.2% of TCM-MeSH.
백금 확산 실리콘의 깊은 에너지 준위의 농도분포에 대한 열처리효과
권영규,Kwon, Young-Kyu 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.3
The concentration profiles of deep energy levels($E_c$ -0.23e V, $E_v$+0.36e V and $E_c$ -0.23e V) in platinum-diffused silicon have generally a sharp gradient in the vicinity of the surface of the silicon wafer. In this work two efficient methods are proposed to obtain the uniform concentration profiles throughout the silicon wafer. One is that the platinum diffusion is carried out at $1000^{\circ}C$ for 1h in oxygen atmosphere. In this case the values of obtained uniform concentration, $1{\times}10^{15}cm^{-3}$ for the $E_c$ -0.23e V level, and 1{\times}10^{14}cm^{-3}$ for the $E_c$ -0.52e V level, are very restricted, respectively. The other is two-step annealing process. The platinum diffusion is carried out at $850{\sim}1100^{\circ}C$ in a nitrogen ambient for 1h and then the annealing is performed at $1000^{\circ}C$ in oxygen ambient after removing platinum-source from the platinum diffused samples. The advantage of this method is that the uniform concentration of these levels required power devices can be controlled by setting the desired temperatures when the platinum diffusion is carried out in nitrogen ambient.
권영규,이현지,Kwon, Young-Kyu,Lee, Hyun-Ji 대한동의생리학회 2005 동의생리병리학회지 Vol.19 No.3
Nowadays most of scholarship is based on the western model. Traditional Chinese Medical education system also follows the western medical education. In the views of medical sociology, it shows very interesting phenomenon that the modernization of traditional area follows the western model of modernization. Moreover, it provides a good chance to discuss whether modernization and westernization of tradition is real development or not. Traditional Chinese Medicine had been the only institutional medicine in China for a long time. But the status of Traditional Chinese Medicine has been changed very rapidly since modern era. Shanghai Traditional Chinese Medical School was established in 1916. But National Party government tried to abolish Traditional Chinese Medicine and it met a crisis of maintenance. But the situation has been dramatically changed when Communist Party got the power in 1949. The Communist Government needed a chief medical service. And Traditional Chinese Medicine could meet the condition. Traditional Chinese Medicine could provide also the ideology of national superiority. Therefore, Traditional Chinese Medicine has been protected and developed by the assistance of the Communist Party. In the process, Traditional Chinese Medical education has been professionalized.
권영규,이병욱,Kwon, Yung-Kue,Lee, Byung-Wook 대한한의정보학회 2005 大韓韓醫情報學會誌 Vol.11 No.1
Objective We wish that oriental medicine theses can now be searched for by computer. So we have studied thesaurus and keywords in OMIS(Oriental Medicine Information System) Methodologies We have compared the keyword with the Thesaurus in the OMIS. So We have analyzed those into the agreement rate and the disagreement rate. Repeatedly, we have analyzed the agreement rate and the disagreement rate in chronological order. Conclusions 1. As the most of authors don't know about thesaurus, So many keywords disagree with thesaurus. 2. Because thesaurus system is very difficult to general authors. So system administors must build synonym data base, if many authors easily use thesaurus system. 3. We have to require institute editor to modify editorial policy. Presently most of institute require only one foreign language keywords, but it must be required foreign and Korean language keywords. 4. We must study not only oriental medicine thesaurus but also the other science thesaurus.
수성막포소화약제(AFFF)의 환경규제와 C4기반 친환경 수성막포소화약제의 적응성 연구
권영규(Kwon, Youngkyu),사재천(Sa, Jeachun),김재영(Kim, Jaeyoung),민세홍(Min, Sehong) 한국방재학회 2022 한국방재학회논문집 Vol.22 No.2
1960년 3M에서 개발된 Aqueous Film Foaming Foam (AFFF)라고 얘기하는 C8기반 수성막포소화약제는 처음부터 군용으로 개발되어 1960년 후반까지 미 해군의 모든 함정에 적용되었고, 1970년대에 미 국방부는 모든 군사시설에 연료화재 진압을 위해 AFFF를 사용했다. 이후로 비행기 격납고, 항공모함과 같은 곳에 사용하는 특수 소화약제로 분류되어왔다. 하지만 AFFF는 강력한 소화력을 가지고 있음에도 보통의 사람들이 사용하는 소화약제와는 거리가 멀었다. 여러 가지 이유가 있겠지만, 비용적인 측면과 환경적인 문제가 있다. 특히, 환경적으로 AFFF가 가지고 있는 잔류성 유기화합물은 생태계와 인체에 잔류하여 안 좋은 영향을 미치는 치명적인 약점을 가지고 있다. 본 연구에서 잔류성 유기화합물을 규제하는 스톡홀름 협약의 AFFF에 대한 사용규제의 원인과 대책을 기술하고, 그 대책의 일환으로 중국에서 개발된 C4기반 친환경 AFFF 소화약제를 소개하며 ‘C4기반’이 의미하는 바를 살펴본다. 또한, 국가표준 시험 KS M 9722:2017 ‘화학제품 중의 PFOS/PFOA 분석방법’ 시험을 통해 C4기반 친환경 AFFF 소화약제에 대표적인 규제 대상인 불화옥탄술폰산(PFOS)과 과불화옥탄산(PFOA)이 검출되지 않음을 증명하고, 소화력이 강력하고 많은 C4기반 친환경 수성막포소화약제를 적용한 각종 소화기와 기타 활용 방법을 제안한다. The C8-based aqueous film forming foam (AFFF) was developed by 3M in 1960, initially for military purposes, and was then used in all U.S. Navy vessels until the late 1960s. The U.S. Department of Defense used the AFFF for fuel fire suppression in all military facilities in the 1970s. The AFFF was classified as a special fire extinguishing chemical used for an airplane hangar or an aircraft carrier. Despite its strong fire extinguishing capacity, the AFFF is not commonly used by civilians, mainly due to the cost factor and environmental issues. In particular, the main organic chemical component of the AFFF is resistant to degradation; it tends to persist in the ecological system and in the human body, consequently having grievous effects. The paper describes the causes and measures of the AFFF use regulations by the Stockholm Convention concerning persistent organic chemicals. The manuscript also introduces the C4-based eco-friendly AFFF, a fire extinguishing chemical developed in China, as a part of the measure and addresses the meaning of “C4-Based.” Moreover, the study verifies that the representative regulation targets for perfluorooctane sulfonates (PFOS) and perfluorooctanoic acid (PFOA) are not detected in the C4-based eco-friendly AFFF fire extinguishing chemical, as revealed by a test on “the method for analyzing PFOS/PFOA” in the chemical product based on the National Standard Test KS M 9722:2017. Accordingly, various fire extinguishers using the C4-based eco-friendly AFFF with strong and extensive fire extinguishing capacity are proposed, and the other use methods.
작업환경측정 시료 채취기의 부착 위치에 따른 유기화합물의 농도 분포에 관한 연구
권영규 ( Yung Gyu Kwon ),원정일 ( Jung Il Won ),장형석 ( Hyung Seok Jang ),심상효 ( Sang Hyo Sim ) 한국산업보건학회 2015 한국산업보건학회지 Vol.25 No.3
Objectives: The purpose of this study is to investigate differences in concentration according to the position at the left or right shoulder within a 30 cm of radius of workers’ respirators and provide basic data for the establishment of an industrial health policy. Methods: Personal samples were collected from a total of 65 workers from 27 manufacturing firms in South Gyeongsang-do Province from November 5, 2011 to December 30, 2012 after classifying the laborers into left- and right-side groups. The organic compound samples were collected and analyzed in accordance with the NIOSH Manual of Analytical Methods (NMAM) 1501. Results: In terms of the concentration of organic compounds collected from both left and right shoulders at the position of workers’ respirators, isobutyl acetate was the highest with 145 ppm at the left shoulder, followed by ethyl acetate (133.5 ppm) and toluene (38.13 ppm). At the right shoulder, on the contrary, ethyl acetate (149.3 ppm) was the highest, followed by toluene (46.26 ppm), xylene (29.63ppm) and isopropyl alcohol (28.06 ppm). Overall, the right shoulder was higher than the left shoulder in terms of concentrations. Conclusions: For the measurement of the working environment, workers’ personal samples should be collected at the place closest to the respirator. In terms of the reduction of error, the attachment of two sample media is expected to reduce errors in exposure assessment.