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A multi-mode screensaver for embedded system is designed to realize autonomous power management and improve utilization of system resource. Application of a three-mode screensaver, including Black Screen (Mode_B), Photo Slide (Mode_P) and Clock Display (Mode_C), has been validated on a multimedia platform based on μC/OS-II embedded system. During its engineering implementation, optimizations on code...
A combination of theoretical and experimental methods, including DFT calculation, BET, Raman spectroscopy, NH 3 -TPD, H 2 -TPR and XPS, has been used to elucidate the mechanism of lead deactivating effect on the V 2 O 5 based SCR catalyst. The theoretical calculations have shown that the doping of lead atom will cause the great change of the surface electronic property...
The explants (root tip, shoot tip, stem segments and leaf segments) from Phalaenopsis hybrid were used in this experiment. The effects of NAA, 6-BA, AC, CM and above explants on callus induction on KC medium were investigated by using orthogonal design (L16(54)). The results indicated that the optimum medium for callus induction is 6-BA 4.0 mg/L+ NAA 0.4 mg/+CM 100 ml/L+AC 0.4 mg/L, and stem segment...
Phalaenopsis is a monopodial orchid which is difficult to propagate vegetatively. The characteristics of seedlings are not uniform, and propagation through tissue culture has been desired. This paper compared the effects of NAA, 6-BA and sucrose on callus induction of P. firedance “SFIL” f006 (1294). The results are as follows:(1)Root segment shows the highest induction rate, 20%, on MS medium supplemented...
Environmental and occupational exposure to lead (Pb) remains to be a major public health issue. The purpose of this cross-sectional study was to use non-invasive magnetic resonance imaging (MRI) and proton magnetic resonance spectroscopy ( 1 H MRS) techniques to investigate whether chronic exposure to Pb in an occupational setting altered brain structure and function of Pb-exposed workers...
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