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| 1 | Comparison of anti-atherosclerotic effects of two different extracts from leaves of Mallotus furetianus显示文摘Objective:To compare the anti-atherosclerotic effects of two different extracts from the leaves of Mallotus fiiretianus by using rat model of atherosclerosis.Methods:The air-flriefl powdered Mallotus fiiretianus leaves were extracted with ethanol and then evaporated.The ethanol extract was experienced Diaion HP-20 CC with a gradient of MeOH and H2O(50:50,100:0,v/v) and two fractions,Mallotus fiiretianus A(Mf A) and Mallotus fiiretianus B(MfB) were obtained.RaLs were divided into control,atherosclerosis and vitamin E,Mf A and Mf B treated groups.Atherosclerotic model was established by administering u loading dose of vitamin D3 and feeding standard diet enriched with 2%cholesterol,0.5%porcine chelate,0.2%methimazole,5%sugar,10%pork fat. Vitamin E(0.20 g/kg),Mf A(0.053 g/kg),Mf B(0.057 g/kg)(with the potential) were administered to interfere with the development of atherosclerosis.After 9 weeks,rats were sacrificed and the blood lipid as well as composition of bile was examined.In addition,the thoracic aorta was harvested to evaluate histological changes and the intima-media thickness ratio.Results: Atherosclerosis model was successfully established,administration of vitamin E,Mf A and Mf B increased excretion of total bilirubin in bile,decreased triglycridc(TO),total cholesterol(TC), low density lipoprotein-cholesterol(LDL-C) level,enhanced ratio of high density lipoprotein-cholesterol and LDL-C in blood,improved histological changes and diminished intimamedia thickness ratio of thoracic aorta in atherosclerotic rats.As for the difference in antiatherosclerotic effects between Mf A and MfB,Mf A may be more powerful in declining TG level and Mf B may be more effective in decreasing TC level.Conclusions:The two different extracts. Mf A and Mf B can prevent the development of atherosclerosis.In detail,Mf A is more effective in regulating TG level and Mf B is more powerful in modulating TC.level in atherosclerotic rats. | Liu Yueli Wang Liqun Wu Haitao Lin Lianbo Yi Xinan | 2011 | Asian Pacific Journal of Tropical Medicine2011,4,11: | 15 |
| 2 | High-performance Li-ion capacitor based on black-TiO2-x/graphene aerogel anode and biomass-derived microporous carbon cathode显示文摘Lithium-ion capacitor (LIC) has been regarded as a promising energy storage system with high powder density and high energy density.However,the kinetic mismatch between the anode and the cathode is a major issue to be solved.Here we report a high-performance asymmetric LIC based on oxygen-deficient black-TiO2-x/graphene (B-TiO2-x/G) aerogel anode and biomass derived microporous carbon cathode.Through a facile one-pot hydrothermal process,graphene nanosheets and oxygen-vacancy-rich porous B-TiO2-x/G nanosheets were self-assembled into three-dimensional (3D) interconnected B-TiO2-x/G aerogel.Owing to the rich active sites,high conductivity and fast kinetics,the B-TiO2-x/G aerogel exhibits remarkable reversible capacity,high rate capability and long cycle life when used as anode material for lithium ion storage.Moreover,density functional theory (DFT) calculation reveals that the incorporation of graphene nanosheets can reduce the energy barrier of Li^+ diffusion in B-TiO2-x.The asymmetric LIC based on B-TiO2-x/G aerogel anode and naturally-abundant pine-needles derived microporous carbon (MPC) cathode work well within a large voltage window (1.0-4.0 V),and can deliver high energy density (166.4 Wh·kg^-1 at 200 mA·g^-1),and high power density (7.9 kW·kg^-1 at 17.1 Wh·kg^-1).Moreover,the LIC shows a high capacitance retention of 87% after 3,000cycles at 2,000 mA·g^-1.The outstanding electrochemical performances indicate that the rationally-designed LICs have promising prospect to serve as advanced fast-charging energy storage devices. | Guoyin Zhu Lianbo Ma Huinan Lin Peiyang Zhao Lei Wang Yi Hu Renpeng Chen Tao Chen Yanrong Wang Zuoxiu Tie Zhong Jin | 2019 | Nano Research2019,12,7: | 2 |
| 3 | Guest editorial: AI and edge computing driven technologies and applications显示文摘1.Introduction Emerging networking paradigms,including Information-Centric Networking(ICN)[1],Software-Defined Networking(SDN)[2],Mobile Satellite Communication Networks(MSCN)[3],and Internet of Vehicles(IoV)[4],have faced some severe challenges.For example,the dynamic network environment makes it very hard to optimize resource allocation.In addition,these networking paradigms usually have heterogeneous features,making it difficult to schedule traffic among different kinds of networks.These challenges can be addressed by the adaptive learning of Artificial Intelligence(AI)[5,6]and the edge caching of edge computing.AI can also help establish a relatively optimal routing strategy and perform congestion control by learning the dynamic network state.Just like AI,edge computing[7–10]can help provide fast response to users,and deploy edge servers with strong computing and storage capabilities can greatly improve the performance of 4K/8K and VR/AR.However,despite their ability to improve network performance,there are still many challenges.For example,the integrated architectures and frameworks need to be clearly identified,and the related protocols need to be better defined. | Jianhui Lv Yuhui Shi Hui Cheng Zhiwei Lin Lianbo Ma | 2023 | Digital Communications and Networks2023,9,2: | 0 |