A5101473694- Natural product bioactivities and synthesis
- Optical Wireless Communication Technologies
- Advanced Optical Sensing Technologies
- Ocular and Laser Science Research
- Phytochemistry and Biological Activities
- Biochemical and biochemical processes
- Biological Activity of Diterpenoids and Biflavonoids
- Ginseng Biological Effects and Applications
Le Quy Don Technical University
2023
The essential oil from the leaves of Callicarpa arborea Roxb. growing wild in Vietnam, was obtained by hydrodistillation and analyzed gas chromatography – mass spectrometry. major constituents C. were β-selinene (23.9%), ar-turmerone (17.5%) α-copaene (8.9%), with lesser concentrations caryophyllene oxide (4.9%) ar-turmerol (3.9%). chemical composition this sample is being reported for first time.
When choosing a laser wavelength for proximity fuze with high accuracy requirements, the weather condition is considerable element. Hence, paper developed detection model in different conditions based on Monte Carlo method to evaluate capability. As atmospheric attenuation function of wavelength, there conception that pulsed 1550 nm light suffers from less than 785 or 850 all (Pratt, 1969). However, foggy (visibility <500 m), results showed appeared be independent, i.e. wavelengths nm,...
Ngoc Linh ginseng or Vietnamese (Panax vietnamensis Ha et Grushv.) of the Araliaceae family, a endemic plant in mountain, is 20th type found world (1985). The content saponin much higher than that other ginsengs such as Panax (Korean ginseng), anax quinquefolium(American ginseng) and notoginseng (Chinese ginseng). Until now, from roots, rhizomes leaves ginseng, there are 63 which were isolated determined structures. In addition, polyacetylenes, polyphenols, fatty alcohols amino acids also...