http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
홍상표(S. P. Hong),권성호(C. H. Quan),심현민(H. M. Shim),김규태(K. T. Kim),김규성(K. S. Kim),윤광섭(K. S. Yoon),이상민(S. M. Lee) 한국재활복지공학회 2015 한국재활복지공학회 학술대회논문집 Vol.2015 No.11
This paper presents the results of the neuromodulation S/W Design and Implementation based on MSP430. The MSP430 operating with ultra power is used actively in the development of human implantable devices. In this paper, The neuromodulation S/W that was designed based on MSP430 has a simple architecture. Also, this neuromodulation S/W provides the reliability and scalability of generating neuro signals simultaneously. In order to verify the operation of the neuromodulation S/W, A separate external control device(PC) test program developed. By using the program, The experiments on generating and controling a brain stimulation signals corresponding to the parameter was conducted and shows the results.
이상민,정지영,한용태,박해택,박흠대,정길생,이기영,Lee, S.M.,Jung, J.Y.,Han, Y.T.,Park, H.T.,Park, H.D.,Chung, K.S.,Lee, K.Y. 대한생식의학회 1998 Clinical and Experimental Reproductive Medicine Vol.25 No.2
We demonstrated that the normal pregnancy and delivery by round spermatid injection (ROSI) into oocytes was achieved from nonobstructive azoospermia patient. In this case, the normal fertilization rate was 50%. All of the two pronuclear stage embryos cleaved and were transferred to the patient's uterus. A singleton pregnancy was achieved and resulted in the birth of normal female infant. This resuJt show that intracytoplasraic injection of round spermatid seems to be new treatment of nonobstmctive azoospermia male infertility. Further research is needed to evaluate the required culture conditions to induce progression of the round spermatid into a more elongated stage.
Electrochemical Multi-Coloration of Molybdenum Oxide Bronzes
이상민,Viswanathan S. Saji,이치우 대한화학회 2013 Bulletin of the Korean Chemical Society Vol.34 No.8
We report a simple electrochemical approach in fabricating multiple colored molybdenum (Mo) oxide bronzes on the surface of a Mo-quartz electrode. A three step electrochemical batch process consisting of linear sweep voltammetry and anodic oxidation followed by cathodic reduction in neutral K2SO4 electrolyte at different end potentials, viz. −0.62, −0.80 and −1.60 V (vs. Hg/HgSO4) yielded red, blue and yellow colored bronzes. The samples produced were analyzed by XRD, EDS, and SIMS. The color variation was suggested to be associated with the cations intercalation into the oxide formed and the simultaneous structural changes that occurred during the cathodic reduction in neutral aqueous medium.
난청인의 난청 정도에 따른 비대칭 청각 필터 구현의 객관적 평가
주상익(S. I. Joo),전유용(Y. Y. Jeon),송영록(Y. R. Song),이상민(S. M. Lee) 한국재활복지공학회 2009 재활복지공학회논문지 Vol.3 No.1
난청인의 청력 손실은 개인별로 다양하므로 기존의 대칭적으로 주파수 밴드별 청각 필터를 구현하는 방법은 다양한 형태의 난청인의 청력 손실을 적절하게 모사해주지 못한다. 각 중심주파수와 음성의 입력크기에 따라 청각 필터의 형태가 비대칭적으로 바뀌고 청력손실이 있는 난청인은 청력 손실에 따라 청각필터의 형태가 정상인들과는 다른 형태로 바뀌게 되며 음질에도 차이가 있다. 본 연구에서는 난청인의 난청 정도에 따라 변하는 비대칭 청각 특성을 잘 반영한 청각필터를 구현하여 몇 가지 실험을 통해 각 구현된 청각 필터의 성능을 객관적으로 평가하였다. 실험은 구현된 청각 필터를 통한 음성의 perceptual evaluation of speech quality (PESQ)와 log likelihood ratio (LLR)를 사용하였으며 그 값을 통해 처리된 음성의 객관적인 음질과 왜곡정도를 평가 하였다. 청력 손실을 주었을 때 대칭과 비대칭 청각 필터사이의 PESQ와 LLR 값을 실험해 본 결과 청각 필터 간의 큰 차이를 보였다. 위 실험 결과들로 대칭과 비대칭 청각 필터의 형태에 따라서 음성의 음질에 영향을 받는다는 것을 알 수 있었다. 특히, 난청이 있을 때 중심 주파수별 청각 필터의 비대칭적 형태 변화가 난청인이 받아들이는 음질에 영향이 있었다. Hearing impaired person s hearing loss has personally various shape, so existing symmetrical auditory filter of frequency band method wasn"t properly simulated the hearing impaired person"s various hearing loss shape. The shapes of auditory filter are asymmetrical different with each center frequency and each input level. Hearing impaired person which has hearing loss was differently changed with that of normal hearing people and it has different value for speech of quality through auditory filter. In this study, the asymmetrical auditory filter was simulated and then some tests to estimate the filter"s performance objectively were performed. The experiment as simulated auditory filter"s performance evaluation method used perceptual evaluation of speech quality (PESQ) and log likelihood ratio (LLR) for speech through auditory filter. In the test, processed speech was evaluated objective speech quality and distortion using PESQ and LLR value. When hearing loss processed, PESQ and LLR value have big difference between symmetrical and asymmetrical auditory filter. It means that the difference of the shape auditory filter may affect to speech quality. Especially, when hearing loss existed, auditory filter changing according to asymmetrical shape for each center frequency affected to perceive speech quality of the hearing impaired.