http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
AL 및 AL 합금의 저주파 PULSE MIG 용접법의 개발
최병길(Byung-Kil Choi),이사영(Sa-Young Lee),이승학(Seung-Hak Lee),천성진(Sung-Ji Chun) 전력전자학회 1997 전력전자학술대회 논문집 Vol.1997 No.-
The low frequency pulsed MIG welding process of new current waveform control to switch over unit pulse conditions (pulse current, pulse duration)in the fixed cycle was developed and its effect were investigated for aluminium and its alloy.<br/> By using this new welding process, the bead appearance having clear ripple pattern, such as TIG welding bead can be obtained and the gap tolerance of lap and butt welding joint can be expanded.
제주 관광의 장기 수요변화 특성과 수요예측에 관한 연구
김영남 ( Kim Young-nam ),최병길 ( Choi Byoung-kil ),박은경 ( Park Eun-kyung ) (사)한국마이스관광학회(구 한국컨벤션학회) 2020 MICE관광연구 Vol.20 No.4
The purpose of this study was to prove research assumption that the econometric model will minimize the forecast error rather than applying time series analysis for the long-run tourism demand forecast in Jeju Special Self-Governing Province. Results showed that the prediction error could be minimized when applying the econometric model as an independent variable with only one GDP per capita, rather than applying a time series analysis. In Jeju Special Self-Governing Province, tourism demand fluctuated sharply due to the increase in low-cost airlines, high popularity of Jeju Olle trail, diplomatic conflicts with China, and the COVID-19 Pandemic. This study suggests to use an econometric model using per capita GDP to accurately predict long-run tourism demand of Jeju Special Self-Governing Province.
양성자 화학적 이동영상기법(<sup>1</sup>H-CSI)을 이용한 정위적 뇌생검
장경술,손병철,김문찬,최병길,김의녕,김범수,최보영,백현만,홍용길,강준기,Chang, Kyung-Sool,Son, Byung-Chul,Kim, Moon-Chan,Choi, Byung-Gil,Kim, Euy-Neying,Kim, Bum-Soo,Choe, Bo-Young,Baik, Hyun-Man,Hong, Yong-Kil,Kang, Joon-Ki 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.12
Objective : To obtain more reliable sample in stereotactic biopsy, authors adopted proton chemical shift imaging ($^1H$-CSI)-directed biopsy. Until now, proton single voxel spectroscopy($^1H$-SVS) technique has been reported as a technique using metabolic information in stereotactic biopsy. The authors performed $^1H$-CSI with a stereotactic headframe in place and evaluated the pathologic results obtained from local metabolic information through $^1H$-CSI. Methods : $^1H$ CSI-directed stereotactic biopsy was performed in four patients. $^1H$-CSI and conventional Gd-enhancement stereotactic MRI was done simultaneously after application of the stereotatic frame. After reconstruction of metabolic maps of NAA/Cr, Cho/Cr, and Lactate/Cr ratios, the focal areas of increased Cho/Cr ratios and decreased NAA/Cr ratios were selected for target sites in the MR images Results : There was no difficulty in performing $^1H$-CSI with the stereotactic headframe in place. In pathologic examinations, the samples taken in area of increased Cho/Cr ratios and decreased NAA/Cr ratios showed the features of increased cellularity, mitoses and cellular atypism, thus facilitated the diagnosis. The pathologic samples taken from the area of increased Lactate/Cr ratios showed prominent feature of necrosis. Conclusion : $^1H$-CSI was feasible with stereotactic head frame in place. The final pathologic results obtained in our samples were concordant with the local metabolic informations from $^1H$-CSI. Authors believe that $^1H$ CSI-directed stereotactic biopsy may provide us advantages in obtaining more reliable tissue specimen in stereotactic biopsy.
서비스 실패요인별 고객의 불만족과 불평행동에 미치는 영향
박은경(Park, Eun Kyung),양용호(Yang, Young Ho),최병길(Choi, Byung Kil) 한국서비스경영학회 2010 서비스경영학회지 Vol.11 No.5
Higher competition in the airline industry made the motive to emphasize the quality management in the airline service. This study attempts to identify the service failure and customer dissatisfaction in the airline industry. Especially, customer dissatisfaction by factors of the service failure has statistically significant differences on behavioral responses. For this study, primary data were collected 300 questionnaires targeted to passengers departing at the Jeju international airport for 15days including weekends. When customers have dissatisfied with some aspects of the airline service; take no action, switching, discontinue use of the service, tell friends and others about their problems, complain to cabin manager, complain to sort of consumer protection groups. As a result of this study, it could be helpful for the airline industry to establish marketing strategy by understanding customers` dissatisfied factors and complaint behaviors in the airline industry. Finally, an airline management should make more efforts to improve service qualities and types.