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Search Results: 1 - 10 of 62584 matches for " FAN Hong-fu "
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Application of ionic liquids in oilfield wastewater treatment
离子液体处理含油污水实验研究

FAN Hong-fu,MA Jun,
范洪富
,马军

燃料化学学报 , 2011,
Abstract: 合成出了适合于含油污水处理的憎水性离子液体,研究了离子液体对含油污水的处理条件。当离子液体与含油污水体积比为1∶5,pH值为5,处理15min后,水中油的去除率为95.6%,CODCr的去除率为93.5%,表明应用离子液体可以有效地去除油田采出水中的有机物。同时考察了再生离子液体对除油效果的影响,其五次平行实验的除油率达95.4%,CODCr去除率为93.2%,表明离子液体可以回收利用。在此基础上,分析了离子液体对含油污水处理的作用机理。
Experimental study on using ionic liquids to upgrade heavy oil
离子液体催化改质稠油实验研究

FAN Hong-fu,LI Zhong-bao,LIANG Tao,
范洪富
,李忠宝,梁 涛

燃料化学学报 , 2007,
Abstract: The effects of ionic liquids on viscosity,hydrocarbon composition and average molecular weight of heavy oils are investigated.The results indicate that ionic liquids have good viscosity reduction property for heavy oils.After reaction with ionic liquids,the amount of saturates,aromatics and resins increase,while asphaltene decreased.This leads to average molecular weight and viscosity of heavy oil decreased.The results also indicate that metal ion modified ionic liquids have catalytic effect on the upgrading reaction of heavy oils.
Application of quantum algorithms to direct measurement of concurrence of a two-qubit pure state

Wang Hong-Fu,Zhang Shou,

中国物理 B , 2009,
Abstract: This paper proposes a method to measure directly the concurrence of an arbitrary two-qubit pure state based on a generalized Grover quantum iteration algorithm and a phase estimation algorithm. The concurrence can be calculated by applying quantum algorithms to two available copies of the bipartite system, and a final measurement on the auxiliary working qubits gives a better estimation of the concurrence. This method opens new prospects of entanglement measure by the application of quantum algorithms. The implementation of the protocol would be an important step toward quantum information processing and more complex entanglement measure of the finite-dimensional quantum system with an arbitrary number of qubits.
Implementation of n-qubit Deutsch--Jozsa algorithm using resonant interaction in cavity QED

Wang Hong-Fu,Zhang Shou,

中国物理 B , 2008,
Abstract: We propose a scheme to implement the n-qubit Deutsch--Jozsa algorithm based on resonant interaction between the atoms and a single-mode cavity. In the scheme, the resonant transitions between two ground states and one excited state of an atom are changed alternately by adjusting the cavity frequency appropriately, and the operations required to complete the algorithm can be significantly simplified following the increment of the number of qubits. The implementation of the scheme in experiment would show the full power of quantum algorithm and would be significative and important for more complicated quantum algorithm in cavity quantum electrodynamics.
Effect of photoperiod on induction of prepupal diapause and larval development in Chrysopa pallens(Rambur)(Neuroptera:Chrysopidae)
光周期对大草蛉(Chrysopa pallens)滞育及发育的影响

SHI Ai-Ju,XU Hong-Fu,LIU Zhong-De,ZHAO Jing,ZHANG Fan,XU Yong-Yu,
时爱菊
,徐洪富,刘忠德,赵静,张帆,许永玉

生态学报 , 2008,
Abstract: 在22℃条件下,研究大草蛉对光周期的敏感性,结果表明:大草蛉属短日照滞育型,在短光照条件下饲养获得的预蛹进入滞育状态,诱导预蛹滞育的临界光周期为10.5L-13.5D到11L-13D.2龄幼虫期是诱导预蛹滞育的敏感虫期,只有当2龄幼虫期处于短光照条件下时才能进入滞育状态.1龄和3龄幼虫期也在滞育诱导条件下进行滞育诱导,能够提高滞育率.光周期对大草蛉幼虫历期及预蛹重的影响研究结果表明:光周期对幼虫历期有一定的影响,特别对2龄幼虫期的影响比较明显.幼虫期的光周期条件影响预蛹的重量,滞育预蛹的重量显著高于非滞育预蛹.
(1S,2S,3R,4S,5R,7S,8S,10R,13S)-2-Debenzoyl-10-deacetyl-2-(3-fluorobenzoyl)-7,10-bis(2,2,2-trichloroethoxycarbonyl)baccatin III ethyl acetate monosolvate monohydrate
Chen Zhang,Cheng Xie,Jun Chang,Hong-Fu Lu
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811002790
Abstract: In the title compound, C35H37Cl6FO14·C4H8O2·H2O, the absolute configurations (1S,2S,3R,4S,5R,7S,8S,10R,13S) for the nine chiral centres of the molecule has been determined. In the crystal, molecules are linked by O—H...O and O—H...Cl hydrogen bonds.
Improving the security of multiparty quantum secret splitting and quantum state sharing
Hong-Fu Wang,Xin Ji,Shou Zhang
Physics , 2006, DOI: 10.1016/j.physleta.2006.04.110
Abstract: A protocol for multiparty quantum secret splitting (MQSS) with an ordered $N$ Einstein-Podolsky-Rosen (EPR) pairs and Bell state measurements is recently proposed by Deng {\rm et al.} [Phys. Lett. A 354(2006)190]. We analyzed the security of the protocol and found that this protocol is secure for any other eavesdropper except for the agent Bob who adopts intercept-and-resend attack. Bob can obtain all the information of Alice's alone without being found. We also propose an improved version of the MQSS protocol.
Risks Associated with High-Dose Lactobacillus rhamnosus in an Escherichia coli Model of Piglet Diarrhoea: Intestinal Microbiota and Immune Imbalances
Xiao-Qiong Li, Yao-Hong Zhu, Hong-Fu Zhang, Yuan Yue, Zheng-Xing Cai, Qing-Ping Lu, Lu Zhang, Xiao-Gang Weng, Fan-Jian Zhang, Dong Zhou, Jin-Cai Yang, Jiu-Feng Wang
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0040666
Abstract: Probiotic could be a promising alternative to antibiotics for the prevention of enteric infections; however, further information on the dose effects is required. In this study, weanling piglets were orally administered low- or high-dose Lactobacillus rhamnosus ACTT 7469 (1010 CFU/d or 1012 CFU/d) for 1 week before F4 (K88)-positive Escherichia coli challenge. The compositions of faecal and gastrointestinal microbiota were recorded; gene expression in the intestines was assessed by real-time PCR; serum tumour necrosis factor-α (TNF-α) concentrations and intestinal Toll-like receptor 4 (TLR4) were detected by ELISA and immunohistochemistry, respectively. Unexpectedly, high-dose administration increased the incidence of diarrhoea before F4+ETEC challenge, despite the fact that both doses ameliorated F4+ETEC-induced diarrhoea with increased Lactobacillus and Bifidobacterium counts accompanied by reduced coliform shedding in faeces. Interestingly, L. rhamnosus administration reduced Lactobacillus and Bifidobacterium counts in the colonic contents, and the high-dose piglets also had lower Lactobacillius and Bacteroides counts in the ileal contents. An increase in the concentration of serum TNF-α induced by F4+ETEC was observed, but the increase was delayed by L. rhamnosus. In piglets exposed to F4+ETEC, jejunal TLR4 expression increased at the mRNA and protein levels, while jejunal interleukin (IL)-8 and ileal porcine β-defensins 2 (pBD2) mRNA expression increased; however, these increases were attenuated by administration of L. rhamnosus. Notably, expression of jejunal TLR2, ileal TLR9, Nod-like receptor NOD1 and TNF-α mRNA was upregulated in the low-dose piglets after F4+ETEC challenge, but not in the high-dose piglets. These findings indicate that pretreatment with a low dose of L. rhamnosus might be more effective than a high dose at ameliorating diarrhoea. There is a risk that high-dose L. rhamnosus pretreatment may negate the preventative effects, thus decreasing the prophylactic benefits against potential enteric pathogens. Our data suggest a safe threshold for preventative use of probiotics in clinical practice.
STUDY ON LIGHT INTENSITY DISTRIBUTION OF TAPERED-FIBER IN NEAR-FIELD SCANNING MICROSCOPY
近场光学中光纤探针的光强分布

ZHOU QING,ZHU XING,LI HONG-FU,
周庆
,朱星,李宏福

物理学报 , 2000,
Abstract: 光在亚微米尺度的光纤探针中的传播行为是一个迫切需要了解的重要问题.用时域有限差分法对三维光纤探针的Maxwell方程直接进行求解,获得了光纤探针的光强分布.计算结果表明:光纤探针中的光强分布呈固定的花样图形,花样图形的形状与光的偏振及针尖的结构形状等有关.该结果对深入理解光纤探针的辐射机理非常有益,并对实际制作性能优良的光纤探针具有指导意义.
Study and design of broadband nonuniform ripple-wall TE0n-TE0(n+1) mode converters
宽带非均匀半径渐变TE0n-TE0(n+1)模式转换器的设计研究

Sun Xu,Zhao Qing,Li Hong-Fu,
孙 旭
,赵 青,李宏福

物理学报 , 2008,
Abstract: 基于耦合波理论,对两类半径渐变圆波导TE0n-TE0(n+1)模式转换器进行理论分析、数值计算和仿真模拟.均匀半径渐变波导高功率模式转换器,采用中心频率为17.14GHz、六周期TE02-TE03模式和中心频率为34.30GHz、六周期TE01-TE02模式两种设计参数.非均匀半径渐变波导高功率模式转换器,采用中心频率为34.30GHz、六周期TE
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