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김진기,김윤기,Kim, Jin Gi,Kim, Yoon Kee 한국재료학회 2015 한국재료학회지 Vol.25 No.2
Plasma properties of dielectric barrier discharges (DBDs) at atmospheric pressure were measured and characterized using optical emission spectroscopy. Optical emissions were measured from argon, nitrogen, or air discharges generated at 5-9 kV using 20 kHz power supply. Emissions from nitrogen molecules were markedly measured, irrespective of discharge gases. The intensity of emission peaks was increased with applied voltage and electrode gap. The short wavelength peaks (315.9 nm and 337.1 nm) measured at the middle of DBDs were significantly increased with applied voltage. The optical emission from DBDs decreased with the addition of oxygen gas, which was especially significant in argon discharge. Emission from oxygen molecules cannot be measured from air discharge and argon discharge with 4.8% oxygen. The emission intensity at 337.1 nm and 357.7 nm related with nitrogen molecule was sensitively changed with electrode types and discharge voltages. However, the pattern of argon emission spectrum was nearly the same, irrespective of electrode type, oxygen content, and discharge voltage.
요약 결과지식의 빈도가 학습자의 기능수준에 따라 운동기술의 수행과 학습에 미치는 영향
김진기(Jin Gi Kim),김홍석(Hong Seok Kim) 한국사회체육학회 2004 한국사회체육학회지 Vol.0 No.22
The purpose of this study was to determine optimal frequency of summary KR according to skill levels of learners. Subjects were 60 high school students and were required to perform golf putting tasks. The following consequences were given as the result of analyses of absolute error(AE), constant error(CE), and variable error(AE) of groups during the acquisition and retention phases. As the skill level of learners was high in the difficult task, 5 trials summary KR group was effective to reduce both AE and VE. As the skill level of learners was low in the difficult task, 1 trial and 5 trials summary KR group were effective to reduce AE.
지방도시계획위원회 운영에 관한 실증적 연구 (전라남도를 중심으로)
김진기 ( Jin Gi Kim ),박상준 ( Sang Jun Park ) 조선대학교 공학기술연구원 2015 공학기술논문지 Vol.8 No.4
After the 2000s, a majority of the authorities to decide the approval of urban planning projects has been transferred to local governments except the designation of limited development districts, the national plan, and the public affairs. The transfer of the authorities generally results from the need of the rational and unbiased operation by means of eliminating past irrational factors. From this perspective, the decision of the approval should be made based on the clear and quantitative criteria on the local urban planning committees`` operation and functions. Additionally, the efficient operation and roles of the committees became very important. Since suspicions of corruption and lobbying were aroused in major cities in the course of the deliberation of urban planning and architecture projects, there was growing concern about the operation of local government``s committees. Consequently, the objectives of this study are 1) to interpret the managerial status and understand the characteristics by means of analyzing the cases and deliberation results from the existing urban planning committees, 2) to identify the problems, and 3) to suggest an improvement plan for the rational and efficient operations of urban planning committees.
김진기(Kim Jin Gi) 대한공간정보학회 2007 대한공간정보학회지 Vol.15 No.2
기존 유해성 적조의 발생해역에 대한 공간결정 연구는 미비하였으며, 적조발생지와 소멸지에 대한 공간을 정확하게 판단하기 어려웠다. 따라서 좀 더 객관적이며, 과학적인 방법으로서 적조의 발생과 이동에 따른 시?공간적인 방법으로의 분석 필요성이 대두 되고 있다. 본 연구에서는 매년 발생되는 유해성 적조 발생지에 대한 공간을 파악하기위해 수치지형도를 이용한 GSIS기법을 적용 해안선을 추출하였으며, 수년간 발생된 적조발생 자료를 근거로 발생지의 공간위치를 결정하여 분석한 결과 연구지 중 여자만 일대에서는 적조의 발생이 거의 없었음을 알 수 있었고 남해 돌산도와 남해도 앵강만 해역일대에서 최고의 발생빈도를 나타냄을 알 수 있었다. 이를 근거로 매년 반복적으로 발생되는 해역에 대한 적조의 분포상황을 시공간적으로 판단하여 이동경로 해역의 예측과 피해의 사전예방이 가능 하리라 판단된다. Few researches related to the spatial determination of areas where red tide occurs have been performed, so accurately determining the area where red tide occurs and disappears poses difficulties. Therefore, a more objective and scientific method is necessary to analyze the occurrence and movement of red tide based on a geo-spatial information system. In this study, the coastline was extracted using a digital topographic map in order to examine areas where red tide occurs each year. An analysis of red tide occurrence areas, which were determined based on red tide data for the last several years, showed that only Yeoja bay had almost a zero case of red tide of the areas studied, whereas Dolsando in the South Sea and NamHaedo Aenggang bay areas exhibited the highest frequency of red tide occurrences. Based on these results, by using a system that determines the geo-spatial distribution status of areas repeatedly hit by red tide every year, it would be possible to predict the course of red tide and prevent consequent damages.