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고경수(Kyeong-Soo Ko),신관석(Kwan-Seok Shin),김창민(Chang-Min Kim) 한국생약학회 1983 생약학회지 Vol.14 No.4
The composition of the phenolic compounds of 14 species, 2 varieties and 1 taxon of the Sedum plant in Korea were studied to identify their inter-specific relationships and their taxonomical position. The phenograms and contour diagrams obtained from the HPLC of EtOAc soluble fraction of these plants were classified into 7 alliences according to their chemical patterns. These chemical patterns agreed with Satake`s classification except for Sedum aizoon. These plants were subdivided into 5 alliences in the Sedum section and 2 alliences in the Hylotelephium section. 1 type of the Sedum spectabile showed a difference in the number of stamens, it could be trated as another category above variety according to this result.
영어 초보자의 영어 학습 능력 향상을 위한 딥러닝 기반 가상 튜터 프로그램
주재성(Jae-Seong Ju),홍우진(Woo-Jin Hong),문우혁(Woo-Hyeok Moon),유사라(Sa-Ra Yu),고경수(Kyeong-Soo Ko),고영서(Yeong-Seo Go),장하은(Ha-Eun Jang),김시현(Si-Hyeon Kim),신정훈(Jeong-Hoon Shin),최승호(Seoung-Ho Choi) 한국디지털콘텐츠학회 2023 한국디지털콘텐츠학회논문지 Vol.24 No.5
In learning English, it can be challenging to have conversations with others, even for those who are familiar with the pronunciation. Practicing communication with a real person is not easy for those who are just starting out. To address this issue, we propose a deep learning-based virtual tutor program for English beginners to practice speaking English on their own. The program uses 13 scenarios to simulate conversations, producing direct data. We used deepfake technology to create a virtual human who accurately mimics speech and facial expressions. We also applied a lip mouse model to enhance speech accuracy. Our experimental results showed that the virtual human’s pronunciation closely resembles that of a real person, and the lip mouse model improves speech accuracy compared to when the deepfake model is used alone. Therefore, English beginners can improve their pronunciation and conversation skills in English using our program.