http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
SiO<sub>2</sub> 완충층 두께에 따른 비정질 InGaZnO Pseudo-MOS Field Effect Transistor의 신뢰성 평가
이세원,황영현,조원주,Lee, Se-Won,Hwang, Yeong-Hyeon,Cho, Won-Ju 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.1
In this study, we fabricated an amorphous InGaZnO pseudo-MOS transistor (a-IGZO ${\Psi}$-MOSFET) with a stacked $Si_3N_4/SiO_2$ (NO) gate dielectric and evaluated reliability of the devices with various thicknesses of a $SiO_2$ buffer layer. The roles of a $SiO_2$ buffer layer are improving the interface states and preventing degradation caused by the injection of photo-created holes because of a small valance band offset of amorphous IGZO and $Si_3N_4$. Meanwhile, excellent electrical properties were obtained for a device with 10-nm-thick $SiO_2$ buffer layer of a NO stacked dielectric. The threshold voltage shift of a device, however, was drastically increased because of its thin $SiO_2$ buffer layer which highlighted bias and light-induced hole trapping into the $Si_3N_4$ layer. As a results, the pseudo-MOS transistor with a 20-nm-thick $SiO_2$ buffer layer exhibited improved electrical characteristics and device reliability; field effective mobility(${\mu}_{FE}$) of 12.3 $cm^2/V{\cdot}s$, subthreshold slope (SS) of 148 mV/dec, trap density ($N_t$) of $4.52{\times}1011\;cm^{-2}$, negative bias illumination stress (NBIS) ${\Delta}V_{th}$ of 1.23 V, and negative bias temperature illumination stress (NBTIS) ${\Delta}V_{th}$ of 2.06 V.
National Park Management Strategies under Social Change
홍성권,김성일,도민선,황영현,Hong, Sung-Kwon,Kim, Seong-Il,Doh, Min-Sun,Hwang, Yeong-Hyeon The Korean Institute of Landscape Architecture 2004 韓國造景學會誌 Vol.32 No.1
우리나라 국립공원은 좁은 공원면적에 비해 높은 이용도와 인력 및 재원의 부족, 공원별로 특화된 계획 부재로 인해 관리에 어려움을 겪고 있다. 여기에 주5일 근무제 가 확대시행 된다면 국립공원 방문수요가 증가할 것으로 예상되고 있어, 이에 대비한 관리전략의 수립이 절실하다. 본 연구는 주5일 근무제 정착에 대비해, 국립공원 이용자들의 선택행동에 영향을 주는 속성별 수준의 종류와 영향력 정도를 파악하고 관리의 우선순위를 결정해, 자인자원의 보전과 이용자 만족이라는 목적을 달성할 수 있는 방안을 제시하고자 수행하였다. 5대 대도시에 거주하는 1,000명을 대상으로 자료를 수집하여 conjoint choice model로 분석한 결과, "휴무일수의 증가"는 국립공원 방문의도와 정(+)의 방향을 보이 는 것으로 나타났다. 속성별로는 "환경교육" 과 "연계 관광"은 모든 수준에서, "공원 내 숙박시설”과 "관광여건", "비용"의 일부 수준에서 '현재상태' 보다 선호가 증가했지만 "자연보호"는 선호 증가가 없었다.
정호균 ( Jeong Ho-kyun ),황영현 ( Hwang Yeong-hyeon ) 한국컨벤션학회 2016 MICE관광연구 Vol.16 No.3
This study aims to examine the differences in shopping behavior of Japanese and Chinese tourists to Busan, Korea. For empirical investigation, Busan Metropolitan City Tourist Survey data collected in 2010 and 2012 were used. Despite of cultural similarities and geographical proximity to Korea, the results of this study show that there are notable differences in shopping behavior between Japanese and Chinese tourists. Japanese tourists preferred to buy at department store and shopping street near accommodation, while Chinese tourists preferred to purchase at duty free shop in the airport and large discount retail store. Japanese tourists were found to buy more seafood, shoes than Chinese tourist. Chinese tourists prefer to buy perfumes and cosmetics, food, ginseng and medical herbs, and apparels. Managerial implications based on findings are discussed.
항공사 웹사이트 품질요인의 중요도: AHP를 적용한 웹사이트 운영자와 이용자의 인식 비교
안희정 ( An Hee-jung ),황영현 ( Hwang Yeong-hyeon ) 한국컨벤션학회 2016 MICE관광연구 Vol.16 No.4
This comparative study was conducted to understand differences in perception of website quality factors between airline website managers and users. This study focused on three website quality factors including information quality, system quality, and service quality. For empirical study, a survey was conducted for a total number of 57 airline website managers and 181 consumers, and an AHP method was applied to calculate relative importance. In general, managers and consumers perceive service quality as the most important factor for airline website. Group difference in importance perception also exists. Consumers put more weight on service quality than managers do. Relative importance of system quality perceived by managers is much higher than that of users. Difference in relative importance also existed even within group comparison by socio-economic and work related characteristics. Theoretical and empirical implications based on findings were discussed with the direction for future research.