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Triterpenoids from aerial parts of Glochidion eriocarpum.
Thu, Vu Kim,Kiem, Phan Van,Yen, Pham Hai,Nhiem, Nguyen Xuan,Tung, Nguyen Huu,Cuong, Nguyen Xuan,Minh, Chau Van,Huong, Hoang Thanh,Lau, Trinh Van,Thuan, Ngo Thi,Kim, Young Ho Natural Product Communications 2010 Natural product communications Vol.5 No.3
<P>From the aerial parts of Glochidion eriocarpum, a new triterpene, glochieriol (1), three new triterpenoid saponins, glochieriosides C - E (2 - 4), together with four known triterpenes (glochidonol, glochidiol, lupeol, and 3-epi-lupeol) were isolated by using combined chromatographic separations. The structures of the new compounds were elucidated on the basis of spectroscopic data, including FTICR-MS, 1D and 2D NMR.</P>
A Real-time Implementation of Object Tracking Algorithms Fusion for Thermal Imaging Sequences
Nguyen Ngoc Hung,Cao Huu Tinh,Nguyen Vi Thuan,Pham Ngoc Van 대한전자공학회 2022 IEIE Transactions on Smart Processing & Computing Vol.11 No.4
Object tracking is a widely used algorithm in image processing. When tracking objects on thermal images, however, issues, such as changes in size, temporary occlusion, lack of prominent features, and active thermal noise, are frequently encountered. This article proposes using Multi- Processor System on Chip (MPSoC) technology to implement new tracking algorithms on programmable hardware platforms to increase the computational speed. This real-time algorithm will combine the superiority of existing object tracking algorithms, such as Camshift, Kalman, and Optical Flow, to overcome the difficulties mentioned above.
Antioxidant Activities of Vietnamese Medicinal Plants
Phuong Thien Thuong,나민균,Nguyen Hai Dang,Tran Manh Hung,Pham Thanh Ky,Tran Van Thanh,Nguyen Hai Nam,Nguyen Duy Thuan,석대은,배기환 한국생약학회 2006 Natural Product Sciences Vol.12 No.1
hundred and twenty six Vietnamese traditional herbals belonging to 59 families were screened forof seven plants, including Euphorbia thymifolia (leaf), Gnetum montanum (stem), Heterosmilax erythrantha(root), Morus alba (leaf), Syzygium formosum (leaf), Jussiaea repens (aerial parts), and Camellia sinensis (leaf),exhibited significant antioxidant activities. All of these herbs showed remarkable free radical scavenging activitieswith IC50 values of 11.0, 14.5, 17.0, 13.6, 10.8, 7.7, and 8.5g/ml, respectively, and significant inhibitory effectsconcentration of 50g/ml.KeywordsVietnamese medicinal plants, antioxidant activity, free radical scavenging, lipid peroxidation
Loc My Thi Nguyen,Tien-Trung Nguyen,Thanh Thi Nghiem,Hien Thu Thi Le,Thao Phuong Thi Trinh,Thuan Van Pham,Thanh Chi Nguyen,Linh Khanh Hoang,Trung Tran 한국과학학술지편집인협의회 2020 Science Editing Vol.7 No.1
In the context of the need to ensure appropriate signalling of the publication of high-quality, international-calibre publications in Vietnam, as well as new policies to improve the quality and effectiveness of scientific research in Vietnam, it is practical to investigate the possibility of developing a national open access database (NOAD). This study aims to answer the question of whether it is necessary to establish a NOAD in Vietnam. We used document analysis to evaluate issues related to NOADs. The results of this study show the complexity, lack of consistency, and difficulty in obtaining practical statistics and assessing research and scientific records in Vietnam today. Furthermore, the findings of this study imply that it is necessary to establish a NOAD of scientific research in Vietnam. The information in this report can be used to develop a NOAD for Vietnam in particular, and for any country that lacks one in general.