http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
장언청 ( Zhang Yan-qing ),최영미 ( Choi Youngl-mi ) 한말연구학회 2021 한말연구 Vol.- No.62
The purpose of this study is to examine the pitch pattern of Lorean accentual phrase produced by Chinese Korean-Learners in the reading of Korean accentual phrase id determined by a specific F0 contour. and the pitch contour of AP's differ depending on their length and the nature of initial segment. in oder to examine if Chinese speakers differing in proficiency, and compared them to pitch contours produced by ten Korean native speakers. The result show that Chinese speakers produced the same type of pitch patterns, internal tonal mudulation differs from native speakers. The pitch realization range of Chinese learners overlaps the low pitch and high pitch ranges. However, in the pitch realization range of Koreans, the range of low tone and high tone is clearly separated. Finally, on the basis of results, we proposed a teaching method that visualizes the F0 contour.
장언(Yan Zhang),변철우(Chul Woo Byeon) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.11
Simple linear analysis has not been able to meet current interpretation of the various manifestations of HRV. According to the chaos of HRV, based on the analysis of time domain and frequency domain, so the nonlinear Lorenz plots are added, It contains the linear and nonlinear variation trend of HRV, The nonlinear process and the non periodic motion can be revealed. To enhance the accuracy of the results. Further analysis of various HRV related disorders. For example, a variety of pressure analysis, hypertension, myocardial infarction, etc. Add more valid identification conditions. Although there are still a lot of technical defects and errors. But the research of HRV development in the direction of linear and nonlinear combination, Is a necessary trend. At the present stage, the application of the research based on nonlinear analysis, mostly focused on the data obtained through the ECG method to analyze and research, In this paper, On the basis of reference to Ubioclip, the nonlinear data obtained by the PPG method, and the application in the smart phones and other mobile terminal, Can facilitate the needs of the public, but also can provide a reference for professional medical information.
고분자전해질 연료전지에서 다양한 기체확산층의 물리적 특성과 연료전지 성능 비교
이지정,김인태,장언,이홍기,심중표,Lee, Ji-Jung,Kim, In-Tae,Zhang, Yan,Lee, Hong-Ki,Shim, Joong-Pyo 한국전기화학회 2007 한국전기화학회지 Vol.10 No.4
다양한 종류의 기체확산층 (gas diffusion layer, GDL)을 이용하여 고분자전해질 연료전지의 성능을 시험하였으며 이를 통해 GDL의 물리적 특성과 연료전지의 성능과의 상관관계를 규명하고자 하였다. 전기전도도, 기공도, air permeability, water flux, PTFE 함량, micro-porous layer (MPL)의 유무에 따른 연료전지 성능의 변화가 고찰되었다. GDL의 물리적 특성들은 서로 밀접한 관계를 가지고 있어 연료전지의 성능변화에 영향을 주었다. Carbon paper나 carbon cloth상에 MPL의 형성이 GDL의 물리적 특성을 변화시켜 연료전지의 성능을 변화시킬 수 있음을 관찰하였다. 물리적 특성과 연료전지 성능과의 관계는 전류밀도의 크기에 따라 다른 경향을 나타내거나 혹은 무관한 경향을 보였다. PEMFC electrodes with various gas diffusion layers (GDL) were characterized to find out the effect of GDL on fuel cell performance. The physical properties of GDL such as electric conductivity, porosity, air permeability, water flux, PTFE content, etc had close relationship each other and affected on the variation of the cell performance. It was observed that the micro-porous layer (MPL) on carbon paper or cloth changed the physical properties of GDL and changed the cell performance. The variation of cell performance as a function of the physical properties of GDL showed different behaviors according to the amount of current density.