http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
전기경련치료(ECT)시 뇌파의 비선형 분석 : 단일증례 연구 A Single Case Study
강웅구,이운철,정선주,윤세창,조맹제,이상훈,김용식 大韓神經精神醫學會 1999 신경정신의학 Vol.38 No.5
연구목적 : 비선형 분석을 통해 전기경련 치료(ECT)의 적절성 및 효과를 판정할 수 있는 새로운 변인을 추출해 낼 가능성을 탐색하기 위하여 한 여성 우울증 환자에서 ECT중 기록한 뇌파의 단일증례 분석을 하였다. 방 법 : 1주일 간격을 둔 두 ECT 회기에서 치료전 안정상태, 마취후-경련전상태, 경련상태, 경련후 뇌파억제상태, 치료후 안정상태의 다섯 상태에 따른 뇌파를 디지털 기록한 데이터를 분석하였다. 결 과 : 분석의 결과 1) 뇌파가 10차원 이하 저차원의 결정론적 성질을 가지고있으며 2) 뇌파는 비정상적(non-stationary)이지만 비선형 지수들이 각 상태 뇌파를 안정적으로 구분해 줄 수 있고 3) ECT 회기의 진행에 따라 경련중 뇌파의 결정론적 성질이 증가하며 4) ECT 회기의 진행에 따라 치료전후 안정상태 뇌파의 최대발산지수(PLE) 및 상관차원이 증가한다는 사실을 관찰할 수 있었다. 결 론 : 단일증례에 대한 다양한 비선형 분석의 결과는 ECT의 치료효과를 정량화할 수 있는 변인으로서 PLE, 상관차원 등 비선형 변수들이 사용될 수 있을 가능성을 제시한다. Objectives : In order to search for new parameters for the evaluation of the adequacy of electroconvulsive therapy(ECT), the authors performed a non-linear analysis of electroencephalogram(EEG) recorded during the course of electroconvulsive therapy(ECT) in a single female patient with depression. Methods : Digitized EEG recordings from two ECT sessions spaced one week were analyzed at five different stages ; pretreatment stable, postanesthetic-preictal, ictal, postical suppression and posttreatment stable stages. Results : Our analysis showed that 1) EEG signals had low dimensional(below 10 dimensions) deterministic characteristics 2) although EEG was nonstationary signal, non-linear parameters could reliably differentiate between various stages we examined. 3) the deterministic property of ictal EEG increased according to the progression of sessions and 4) the primary Lyapunov exponent(PLE) and correlation dimension of pre- and post-treatment stable stage EEG increased according to the progression of sessions. Conclusion : In this single case study, results of various non-linear analyses suggested that non-linear variables extracted from EEG recordings during ECT may have utilities as tools for the quantitative evaluation of ECT.
Sang-Joon Yoon,Seog-Young Han,Byung-Joo Yi,Jae-Yong Park,Won-Gu Lee 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.51 No.II
The micromanipulators basically require sufficient workspace and high natural frequency. However, previous designs have difficulty in satisfying the required workspace and natural frequency simultaneously, because the previous micromanipulators are coupled designs. In this study, a previous design was analyzed from the viewpoint of the axiomatic design. Then, a new design parameter, displacement magnifier, which transforms a coupled design into a decoupled design, was suggested. And a design procedure based on an axiomatic design was suggested. A spatial 3-degrees-of-freedom parallel-type micromanipulator was chosen as an exemplary device. According to the suggested design procedure, the micromanipulator having the required natural frequency was designed in the first step, and then the displacement magnifier satisfying the required workspace was designed sequentially. As a consequence, the micromanipulator has a natural frequency of 500 Hz and workspace of $-0.5^\circ \times 0.5^\circ$. To verify the effectiveness of the manipulator and displacement magnifiers, simulations and experiments were performed. It is verified that the manipulator and the displacement magnifiers implemented work very well for satisfying the required natural frequency and workspace.
MORAL Teacher and Immoral School: A Case of Chinese School
Yi Li,Jo Sung-gu,Park Gyun-yeol J-INSTITUTE 2019 Robotics & AI Ethics Vol.4 No.2
This study aims to inquiry the way to solve the current moral problems of the school in China. Based on C-score Algorithm of Moral Competence Test(MCT), this wants to show the alternative to China. C-score’s main idea could be summarized “lowly orientation to the lower values, and highly orientation to the higher values”. In the classroom or some places where teachers feel to educate or share some opinion with students, it is impossible for teacher to handle their students’ whole schedules, interests, and moral tasks. This research used conceptual model based on C-score to imply to Chinese educational environment. But the method was not real made experiment but to make and show the conceptual model as one of the framework. The result of this research waits for the empirical results through deeper experiment. Finally this research could catch the point that morality could be improved through the process of collaboration between individual as moral agent and school as environment.
이기철,서영상,구지영,이나경 東亞大學校建設技術硏究所 2004 硏究論文集 Vol.28 No.1
In this study, the spatiotemporal surface temperature changes were analyzed in the Korean pennisula. The surface temperature variation was estimated using the split-window method and NOAA/AVHRR data in 1991, 1995 and 2000. The ranges of differences were 3-15℃ around the penninsula. The differences in seasonal variations and yearly flucturations in big cities were lower than those in rural areas and showed clearly the effects of the urbanization. The characteristics of urban heat affects were further determined based on the day and night time temparature comparision on Busan metropolitan area between these periods. Finally, the future use of this technology was suggested for the urban environmental planning.
Characterization of Korean Red Ginseng (Panax ginseng Meyer)
Sang Myung Lee,Bong-Seok Bae,Hee-Weon Park,Nam-Geun Ahn,Byung-Gu Cho,Yong-Lae Cho,Yi-Seong Kwak 고려인삼학회 2015 Journal of Ginseng Research Vol.39 No.4
It has been reported that Korean Red Ginseng has been manufactured for 1,123 y as described in the GoRyeoDoGyeong record. The Korean Red Ginseng manufactured by the traditional preparation method has its own chemical component characteristics. The ginsenoside content of the red ginseng is shown as Rg1: 3.3 mg/g, Re: 2.0 mg/g, Rb1: 5.8 mg/g, Rc:1.7 mg/g, Rb2: 2.3 mg/g, and Rd: 0.4 mg/g, respectively. It is known that Korean ginseng generally consists of the main root and the lateral or fine roots at a ratio of about 75:25. Therefore, the red ginseng extract is prepared by using this same ratio of the main root and lateral or fine roots and processed by the historical traditional medicine prescription. The red ginseng extract is prepared through awater extraction (90℃ for 14-16 h) and concentration process (until its final concentration is 70-73 Brix at 50-60℃). The ginsenoside contents of the red ginseng extract are shown as Rg1: 1.3 mg/g, Re: 1.3 mg/g, Rb1: 6.4 mg/g, Rc:2.5 mg/g, Rb2: 2.3 mg/g, and Rd: 0.9 mg/g, respectively. Arginine-fructose-glucose (AFG) is a specific amino-sugar that can be produced by chemical reaction of the process when the fresh ginseng is converted to red ginseng. The content of AFG is 1.0-1.5% in red ginseng. Acidic polysaccharide, which has been known as an immune activator, is at levels of 4.5-7.5% in red ginseng. Therefore, we recommended that the chemical profiles of Korean Red Ginseng made through the defined traditional method should be well preserved and it has had its own chemical characteristics since its traditional development.