Liu W.,Honghe University |
Liu W.,Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan |
Huang D.,Honghe University |
Huang D.,Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan |
And 9 more authors.
Advanced Materials Research | Year: 2012
Extraction of amygdalin by ethanol refluxing from waste loquat kernel was performed successfully. Amygdalin concentrations were determined by using ultraviolet spectrophotometry with ethanol as solvent at 210 nm. And the influences of various factors on extraction process were discussed. The result shows that the concentration of ethanol is the most influencing factor in this process, and then the solid-liquid volume ratio, the extraction temperature and the extraction time. Optimum conditions for this extraction process are: the solid-liquid volume ratio is 1/10, the concentration of ethanol is 65%, the extraction temperature is 60°C and the extraction time is 45min. © (2012) Trans Tech Publications, Switzerland.
He W.-Q.,Honghe University |
Gao R.-L.,Petrochina |
Zhang P.,Honghe University |
Bi X.-W.,Honghe University |
And 4 more authors.
Communications in Theoretical Physics | Year: 2015
Spin-orbit coupled Bosonic atoms confined in external potentials open up new avenues for quantum-state manipulation and will contribute to the design and exploration of novel quantum devices. Here we consider a quasi-two-dimensional spin-orbit coupled Bose-Einstein condensate confined in an external harmonic potential, with emphasis on the effects of anisotropic spin-orbit coupling on the equilibrium ground-state structure of such a system. For the cases with spin-orbit coupling solely in x- or y-axis direction, the ground-state structure can develop to the well-known standing wave phase, in which the two components always form an alternative density arrangement. For a two-dimensional anisotropic spin-orbit coupling, the separated lumps first become bend, then form two rows of stripe structure along y direction with further increasing the strength of spin-orbit coupling in x-direction. Furthermore, the distance between these two rows of stripe structure is also investigated in detail. © 2015 Chinese Physical Society and IOP Publishing Ltd.