http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
유경민(Kyung Min You),서영규(Young Kyu Seo),박만주(Man Joo Park) 한국관광연구학회 2008 관광연구저널 Vol.22 No.2
This research attempts to make a marketing approach to increase the competition of a golf industry. the goals of this research are following: First, the goal of this experiment is collecting consumers based on former experiment about leisure life style. Second, the goal of this experiment is showing various factors of choosing a drinking and eating enterprise by targeting on collected consumers. Resulted by real experiments, the crowd of consumers by leisure life style is consisted of social-intention group, social-intention group and exercise-preference group. Each group has a partial difference on choosing drinking and eating goods in a golf course. These results show that there are many customers with variety, and the golf course as a means of leisure culture has roughly changed.
최경진(Kyung-jin Choi),유경민(Kyung-min You),김일호(Il-ho Kim) 한국철도학회 2016 한국철도학회 학술발표대회논문집 Vol.2016 No.5
철도차량에서 화물차량 차축용 베어링은 고하중으로서 9 ton이상의 동 하중을 견디도록 하며, 궤도와의 동적인 영향에도 충분하게 대응할 수 있어야 한다. 국내 화차용 베어링은 100 % 수입품에 의존하고 있으며, 유지보수기술도 수입품에 대하여 운영회사에서 매우 열악한 환경에서 최소한의 비용으로 원형상태를 검사하고 정비하여 재사용하고 있다. 따라서, 철도차량의 설계요구사항이나 유지보수상의 사용수명이 실제사용연수와 주행거리에 의한 수명과의 관련성을 충분하게 입증하지 못하여 실시간 베어링 외관상태를 검사하는 데 머물러 있다. 베어링의 상태검사는 육안 또는 정밀측정에 의한 검사로서 판정되는데, 단순 외관검사에만 의존하여서는 내재된 피로손상이나 변형손상 등은 쉽게 발견하기가 어렵다. 따라서, 본 연구는 화차용 베어링의 기술개발에 필요한 요구조건을 면밀히 검토하여 베어링 구입 또는 개발에 필요한 기술사양과 유지보수에 필요한 요구사항을 분석 제안하는 데 그 목적이 있다. The freight car axle bearings should withstand the dynamic load of at least about 9 ton heavy load. It should also be sufficient to respond to the dynamic effect of the rails and freight car axle bearings rely on imports 100%. Maintenance Technology is also the operating company imports and re-use the bearing condition maintenance costs to a minimum. Thus, the failure to prove the design requirements and the maintain life, but to live outside the state inspection, visual inspection, it is difficult to readily find fault with fatigue and strain. This study aims to analyze and review the proposed requirements for were keeping requirements for wagons bearing the development, purchase and technical specifications required for the development and maintenance needs.
딥러닝 모델을 이용한 휴대용 무선 초음파 영상에서의 경동맥 내중막 두께 자동 분할 알고리즘 개발
최자영,김영재,유경민,장영우,정욱진,김광기,Choi, Ja-Young,Kim, Young Jae,You, Kyung Min,Jang, Albert Youngwoo,Chung, Wook-Jin,Kim, Kwang Gi 대한의용생체공학회 2021 의공학회지 Vol.42 No.3
Measuring Intima-media thickness (IMT) with ultrasound images can help early detection of coronary artery disease. As a result, numerous machine learning studies have been conducted to measure IMT. However, most of these studies require several steps of pre-treatment to extract the boundary, and some require manual intervention, so they are not suitable for on-site treatment in urgent situations. in this paper, we propose to use deep learning networks U-Net, Attention U-Net, and Pretrained U-Net to automatically segment the intima-media complex. This study also applied the HE, HS, and CLAHE preprocessing technique to wireless portable ultrasound diagnostic device images. As a result, The average dice coefficient of HE applied Models is 71% and CLAHE applied Models is 70%, while the HS applied Models have improved as 72% dice coefficient. Among them, Pretrained U-Net showed the highest performance with an average of 74%. When comparing this with the mean value of IMT measured by Conventional wired ultrasound equipment, the highest correlation coefficient value was shown in the HS applied pretrained U-Net.