从民间草药玄参科植物水蔓菁[Veronica linariifolia Pall. ex Link. sub dilatata(Nakai et Litagawa)Hong.]的干燥全草的乙醇提取物中分离得到三个黄酮甙和两个黄酮甙元,其中甙Ⅰ是新化合物,命名为水蔓菁甙(linariifolioside)。根据...从民间草药玄参科植物水蔓菁[Veronica linariifolia Pall. ex Link. sub dilatata(Nakai et Litagawa)Hong.]的干燥全草的乙醇提取物中分离得到三个黄酮甙和两个黄酮甙元,其中甙Ⅰ是新化合物,命名为水蔓菁甙(linariifolioside)。根据光谱数据和水解产物分析确定甙Ⅰ的结构为木犀草素-7-O-6″′-O-乙酰基-β-D-葡萄糖基-(1→2)-β-D-葡萄糖甙[luteolin-7-O-6″′-O-acetyl-β-D-glucosyl-(1→2)-β-D-glucoside]。另外甙Ⅱ,甙Ⅲ以及两个甙元为已知物,分别为木犀草素-7-O-β-D-葡萄糖基(1→2)-β-D-葡萄糖甙[luteolin-7-O-β-D-glucosyl(1→2)-β-D-glucoside,Ⅱ]和芹黄素-7-O-x-L-鼠李糖甙(apigenin-7-O-α-L-rhamnoside,Ⅲ)、以及木犀草素(luteolin,Ⅳ)和芹黄素(apigenin,Ⅴ)。这些化合物在水蔓菁中均是首次得到。展开更多
The self-restoration properties in VWP networks are investigated with optimization about spare wavelength by simulations. Rapid restoration can be achieved by selection of rerouting path with long delay and no delay-l...The self-restoration properties in VWP networks are investigated with optimization about spare wavelength by simulations. Rapid restoration can be achieved by selection of rerouting path with long delay and no delay-limitation for new routes.展开更多
This paper firstly examines the value of optical bypass scheme in packet ring networks. An Integer Linear Program (ILP) formulation is presented and analytical results under different traffic patterns are given.
文摘从民间草药玄参科植物水蔓菁[Veronica linariifolia Pall. ex Link. sub dilatata(Nakai et Litagawa)Hong.]的干燥全草的乙醇提取物中分离得到三个黄酮甙和两个黄酮甙元,其中甙Ⅰ是新化合物,命名为水蔓菁甙(linariifolioside)。根据光谱数据和水解产物分析确定甙Ⅰ的结构为木犀草素-7-O-6″′-O-乙酰基-β-D-葡萄糖基-(1→2)-β-D-葡萄糖甙[luteolin-7-O-6″′-O-acetyl-β-D-glucosyl-(1→2)-β-D-glucoside]。另外甙Ⅱ,甙Ⅲ以及两个甙元为已知物,分别为木犀草素-7-O-β-D-葡萄糖基(1→2)-β-D-葡萄糖甙[luteolin-7-O-β-D-glucosyl(1→2)-β-D-glucoside,Ⅱ]和芹黄素-7-O-x-L-鼠李糖甙(apigenin-7-O-α-L-rhamnoside,Ⅲ)、以及木犀草素(luteolin,Ⅳ)和芹黄素(apigenin,Ⅴ)。这些化合物在水蔓菁中均是首次得到。
文摘The self-restoration properties in VWP networks are investigated with optimization about spare wavelength by simulations. Rapid restoration can be achieved by selection of rerouting path with long delay and no delay-limitation for new routes.
基金This work is supported by National High Project Fund(863) with a project number 2001AA121073.
文摘This paper firstly examines the value of optical bypass scheme in packet ring networks. An Integer Linear Program (ILP) formulation is presented and analytical results under different traffic patterns are given.