http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
닭의난초(Epipactis thunbergii)에 공생하는 난 균근균의 분리 및 동정
한한결 ( Han Kyeol Han ),정재민 ( Jae Min Chung ),조용찬 ( Yong Chan Cho ),김대신 ( Dae Shin Kim ),엄안흠 ( Ahn Heum Eom ) 한국균학회 2013 韓國菌學會誌 Vol.41 No.1
In this study, roots of Epipactis thunbergii were collected from Chujado on the north of Jeju-do. Six fungal isolates were isolated from surface-sterilized roots of the orchid and classified with groups based on morphological characteristics. Fungal DNA was extracted from each isolate and amplified ITS region using ITS1-OF/ITS4-OF primer pair. Three species of orchid mycorrhizal fungi were identified as Tulasnella calospora, Tulasnella sp. and Sebacina sp. based on molecular and morphological characteristics.
Han-Kyeol Yeo,Dong-Kuk Lim,Dong-Kyun Woo,Jong-Suk Ro,Hyun-Kyo Jung IEEE 2015 IEEE transactions on magnetics Vol.51 No.3
<P>An overhang structure is used to enhance the air-gap flux density and increase the torque density of a motor. In the preliminary design stage, consideration of the overhang effect is important for a precise prediction of the performance of a motor with overhang and for the selection of the proper overhang length. The 3-D finite-element method (FEM) is essential when analyzing a motor with an overhang structure due to the asymmetry in the axial direction caused by overhang. However, it is computationally expensive and time-consuming, especially during the initial design stage. In this paper, we propose a magnetic equivalent circuit model, which considers the overhang structure of a surface-mounted permanent-magnet motor. With the proposed analytical method, the computational time is significantly reduced in the preliminary design stage. The proposed analytical model is verified with a 3-D FEM analysis.</P>
Han-Kyeol Yeo,Dong-Kyun Woo,Dong-Kuk Lim,Jong-Suk Ro,Hyun-Kyo Jung 대한전기학회 2014 Journal of Electrical Engineering & Technology Vol.9 No.6
The rotor overhang is used to enhance the air-gap flux and improve the power density. Due to the asymmetry in the axial direction caused by the overhang, a time consuming 3D analysis is necessary when designing a motor with overhang. To solve this problem, this paper proposes an equivalent magnetic circuit model (EMCM) which takes account overhang effects without a 3D analysis by using effective air-gap length. The analysis time can be reduced significantly via the proposed EMCM. A reduction in the analysis time is essential for a preliminary design of a motor. In order to verify the proposed model, a 3-D finite-element method (FEM) analysis is adopted. 3-D FEM results confirm the validity of the proposed EMCM.
Yeo, Han-Kyeol,Woo, Dong-Kyun,Lim, Dong-Kuk,Ro, Jong-Suk,Jung, Hyun-Kyo The Korean Institute of Electrical Engineers 2014 Journal of Electrical Engineering & Technology Vol.9 No.6
The rotor overhang is used to enhance the air-gap flux and improve the power density. Due to the asymmetry in the axial direction caused by the overhang, a time consuming 3D analysis is necessary when designing a motor with overhang. To solve this problem, this paper proposes an equivalent magnetic circuit model (EMCM) which takes account overhang effects without a 3D analysis by using effective air-gap length. The analysis time can be reduced significantly via the proposed EMCM. A reduction in the analysis time is essential for a preliminary design of a motor. In order to verify the proposed model, a 3-D finite-element method (FEM) analysis is adopted. 3-D FEM results confirm the validity of the proposed EMCM.
Yeo, Han-Kyeol,Woo, Dong-Kyun,Lim, Dong-Kuk,Ro, Jong-Suk,Jung, Hyun-Kyo Journal of International Conference on Electrical 2013 Journal of international Conference on Electrical Vol.2 No.4
The rotor overhang is used to enhance air-gap flux and improve power density. Due to asymmetry in the axial direction caused by the overhang, the time consuming 3D analysis is necessary to design the motor with overhang. To solve this problem, this paper proposes the equivalent magnetic circuit model (EMCM) that can consider overhang effects without the 3D analysis by using effective air-gap length. The analysis time can be reduced significantly via the proposed EMCM. The reduction of the analysis time is essential for the preliminary design of the motor. In order to verify the proposed model, the 3-D finite-element method (FEM) analysis is adopted. 3-D FEM results confirm the validity of the proposed EMCM.
정한결 ( Han Kyeol Jung ) 대한무용학회 2015 대한무용학회논문집 Vol.73 No.3
This research intended to suggest ``Theory of Sublimation`` of ``Jean-Francois Loytard`` as the core viewpoint to understand modern dance. first, modern dance is a work to reveal a new form of those which cannot be reenacted by focusing on the essence of movement. This characteristic meets ``negative depiction`` of sublimation. this characteristic includes ``meta kinesis`` that means the expansion to a certain mental area that is impossible to express. this way, arouse different emotions, and are put in a new state of emotion by colliding into each other. This is possible to understand with ``enhancement of existence`` of sublimation.
Yeo, Han-Kyeol,Park, Hyeon-Jeong,Seo, Jung-Moo,Jung, Sang-Yong,Ro, Jong-Suk,Jung, Hyun-Kyo IEEE 2017 IEEE transactions on magnetics Vol.53 No.6
<P>Recently, overhang structures are increasingly used for various applications requiring high torque and power densities in a limited space such as traction motors of electric vehicles and servo motors of robot arms. In the design stage, overhang effects should be taken into account to predict the performances and the temperature rise of a motor with overhang. However, little research has been conducted on the thermal characteristics and analysis methods for a surface-mounted permanent-magnet (SPM) motor with overhang. To address this problem, the electromagnetic and thermal characteristics of the SPM motors with and without overhang are invested in this paper. Specifically, 3-D finite-element method is used in electromagnetic analysis to accurately calculate electromagnetic losses which are heat sources in thermal analysis. Moreover, the lumped-parameter thermal network (LPTN) which can consider overhang effects rapidly and precisely is proposed as an analytical method. Through the proposed LPTN, the computation time for thermal analysis is reduced considerably in comparison with a computational fluid dynamics method, and the temperature rise of the motors are precisely predicted. The results calculated in electromagnetic and thermal analysis are verified experimentally with 0.3 Nm, 20-pole/24-slot SPM motors adopting natural cooling.</P>