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A New Characterization of p-Smoothable Banach Spaces

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Acta Mathematica Sinica,English Series 2011年第5期27卷 1005-1010页

作者： Yan bo REN You liang HOU School of Mathematics and Statistics He 'nan University of Science and Technology Luoyang 471003 P. R. China School of Mathematics and Statistics Wuhan University Wuhan 430072 P. R. China

In this paper an atomic decomposition theorem for Banach-space-valued weak Hardy regular martingale space wpHα^s（X） is given. As an application, p-smoothable Banach spaces are characterized in terms of bounded sublinear operators defined on Banach-space-valued weak Hardy regular martingale space wpHa^s（X）. Keywords Martingale, weak Hardy space, atomic decomposition, p-smoothable Banach space

关键词： Martingale weak Hardy space atomic decomposition p-smoothable Banach space

Status adaptive routing with delayed rebroadcast scheme in AODV-based MANETs

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The Journal of China Universities of Posts and Telecommunications 2008年第3期15卷 82-86页

作者： LI ting TANG Rui-bo JI Hong Key Laboratory of Universal Wireless Communications Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 China

An efficient solution is proposed in this article to determine the best reliable route and to prolong the lifetime of the mobile Ad-hoc networks （MANETs）. In the proposed solution, the route discovery process of the Ad-hoc on-demand distance vector routing protocol （AODV） has been modified using a novel delayed rebroadcast scheme. It combines the shortest route selection criterion of AODV with the real network status including the wireless link quality, the remaining power capacity, as well as the traffic load at each node. Simulation results show that the proposed scheme can significantly extend the network lifetime and provide fewer packet losses than the conventional AODV protocol.

关键词： MANETs AODV route discovery energy efficient wireless link quality traffic load

DYNAMICALLY ASYMPTOTIC SOLUTIONS NEAR MODE II CRACK-TIPS

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Acta Mechanica Solida Sinica 2008年第4期21卷 369-374页

作者： bo Zhou Zhenqing Wang Wenyan liang College of Aerospace and Civil Engineering Harbin Engineering University Harbin 150001 China

Description on dynamic behaviours of crack-tips is one of the important foundations to develop a reasonable dynamic fracture criterion. In order to describe the dynamic behaviours of the crack-tip in a material with low viscosity-number, the displacement potential function is assumed as a mathematical expression with exponential singularity. The asymptotic linear differential equations determining plane crack-tip field are established based on the mechanical constitutive model for elastic-viscoplastic materials. According to the conditions of determining solutions for dynamic cracks of mode II, the crack-tip stress fields are numerically simulated based on the asymptotic linear differential equations. Results show the asymptotic linear equations can well describe the crack-tip fields of plane dynamic cracks in the elastic-viscoplastic material with low viscosity-number.

关键词： elastic-viscoplastic material dynamic crack asymptotic differential equations

Three-component synthesis of amidoalkyl naphthols catalyzed by bismuth(Ⅲ) nitrate pentahydrate

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Chinese Chemical Letters 2012年第1期23卷 65-68页

作者： Min Wang Yan liang ting ting Zhang Jing Jing Gao College of Chemistry Chemical Engineering and Food SafetyBohai UniversityJinzhou 121000China

Bismuth（Ⅲ） nitrate pentahydrate catalyzed the three-component condensation ofβ-naphthol,aldehydes and amines/urea under solvent-free conditions to afford the corresponding amidoalkyl naphthols in excellent yields.

关键词： Amidoalkyl naphthols Bismuth(Ⅲ) nitrate One-pot synthesis Solvent-free conditions

Strontium chloride-catalyzed one-pot synthesis of 2,3-dihydroquinazolin-4(1H)-ones in protic media

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Chinese Chemical Letters 2011年第12期22卷 1423-1426页

作者： Min Wang ting ting Zhang Yan liang Jing Jing Gao College of Chemistry and Chemical Engineering Bohai University Jinzhou 121000 China

A wide range of mono-and disubstituted 2,3-dihydroquinazolin-4（1H）-ones were obtained in high yields by condensation of isatoic anhydride,aldehydes with ammonium salts or primary amines in the presence of strontium ... 详细信息

关键词： 2 3-Dihydroquinazolin-4(1H)-ones One-pot synthesis Strontium chloride Isatoic anhydride

Fuzzy Q-learning in continuous state and action space

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The Journal of China Universities of Posts and Telecommunications 2010年第4期17卷 100-109页

作者： XU Ming-liang XU Wen-bo Department of Electronic Information Engineering Wuxi City College of Vocational Technology Wuxi 214063 China School of Information Technology Jiangnan University Wuxi 214122 China

An adaptive fuzzy Q-leaming （AFQL） based on fuzzy inference systems （FIS） is proposed. The FIS realized by a normalized radial basis function （NRBF） neural network is used to approach Q-value function, whose input is composed of state and action. The rules of FIS are created incrementally according to the novelty of each element of the pair of state-action. Moreover the premise part and consequent part of the FIS are updated using extended Kalman filter （EKF）. The action that impacts on environment is the one with maximum output of FIS in the current state and generated through optimization method. Simulation results in the wall-following task of mobile robots and the inverted pendulum balancing problem demonstrate that the superiority and applicability of the proposed AFQL method.

关键词： Q-learning FIS continuous adaptation

Non-Markovian and Non-Perturbative Entanglement Dynamics of Biomolecular Excitons

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Chinese Physics Letters 2011年第8期28卷 344-347页

作者： LIU Zhi-Qiang liang Xian-ting Department of Physics and Institute of Modern Physics Ningbo UniversityNingbo 315211

We investigate the entanglement dynamics of two coupled chromophore pairs embedded in a protein-solvent *** non-Markovian and non-perturbative hierarchical expansion technique is used in the solution of the quantum *** spectral distribution function of the bath is set with the Drude–Lorentz *** is shown that the evolutions of the entanglement described by the measures of negativity and concurrence are in agreement with each *** decay to zero in a short time and the sudden death and sudden birth can be observed in the process of the evolutions of the entanglement.

关键词： dynamics decay Lorentz

Facile construction of Mxene-supported niobium hydride nanoparticles toward reversible hydrogen storage in magnesium borohydride

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Rare Metals 2024年第9期43卷 4387-4400页

作者： Ao Xia Jia-Guang Zheng Qing-bo Zhang Yu-Gang Shu Cheng-Guo Yan Liu-ting Zhang Zhan-liang Tao Li-Xin Chen School of Energy and Power Jiangsu University of Science and TechnologyZhenjiang 212003China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071China State Key Laboratory of Silicon and Advanced Semiconductor Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China

The facile construction of nanoscale NbH_(x)supported by Ti_(3)C_(2)(NbH_(x)@Ti_(3)C_(2))was achieved using facile ball milling strategy to improve the hydrogen desorption kinetics and reversibility of magnesium borohydride(Mg(BH_(4))_(2)).The doping of 30 wt%NbH_(x)@Ti_(3)C_(2)catalyst reduced the onset dehydrogenation temperature of Mg(BH_(4))_(2)to 71.2℃.Additionally,the Mg(BH_(4))_(2)+30NbH_(x)@Ti_(3)C_(2)composite achieved remarkable hydrogen release of over 9.2 wt%at a temperature as low as 230℃,indicating unexpected dehydrogenation ***,the reversibility of NbH_(x)@Ti_(3)C_(2)doped Mg(BH_(4))_(2)was retained to more than 4.2 wt%after four cycles,which was increased by 68%compared to that of undoped Mg(BH_(4))_(2).The strong catalysis of NbH_(x)@Ti_(3)C_(2)catalyst could be attributed to the synergistic effect of NbH_(x)and Ti_(3)C_(2)in hydrogen spillover and ***_(x)acted as a"hydrogen pump"for effective hydrogen spillover,while Ti_(3)C_(2)created numerous diffusion channels for hydrogen dissolution and provided the active catalytic site to facilitate the re/dehydrogenation of Mg(BH_(4))_(2).

关键词： Hydrogen storage Magnesium borohydride Catalysts Mxene

The production relationship of destruxins and blastospores of Metarhizium anisopliae with virulence against Plutella xylostella

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Journal of Integrative Agriculture 2016年第6期15卷 1313-1320页

作者： DONG ting-yan ZHANG bo-wen WENG Qun-fang HU Qiong-bo Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province College of Agriculture South China Agricultural University

Metarhizium anisopliae as an essential entomopathogenic fungus has been known to produce destruxins （a kind of cyclo-peptidic mycotoxins） and blastospores in submerged culture. Blastospores and destruxins are candidates for in- secticides, but the relations of both productions and the impact factors are unclear yet. In this study, we investigated the effects of inoculums, rotation, dissolved oxygen （DO） on the productions of blastospores and destruxins A and B （DA and DB） in submerged culture of M. anisopliae strain MaQ01. The results indicated that DO levels were regulated by inoculum amounts and rotation speeds, meanwhile, the productions of DA, DB and blastospores were also closely influenced by those factors. Totally, when DO value was more than 40%, the higher productions of destruxins and blastospores were achieved, by contrast, lower than 40% of DO values resulted in lower productions. The regression analysis suggested that the productions of DA, DB and blastospores were positively correlated with the DO levels. Meanwhile, the positive correlations between the productions of DA or DB and blastospores were also found. Briefly, when the rotation is 150 r min-1 and the inoculum is 1.0xl06 spore mL-1, the DA, DB and blastospores achieved the best production of 61.81 mg mL-1, 24.74 mg mL-1 and 5.73x 108 spore mL-1, respectively. In addition, the pathogenicities of blastospores and conidia against Plutella xylostella were bioassayed. The higher mortalities of P. xylostella were totally recorded in blastospore treatments than in conidia treatments, especially in lower dosages and earlier periods. Our research will give some new insights to production of destruxins and blastospores by using M. anisopliae.

关键词： Metarhizium anisopliae blastospores destruxins production Plutella xylostella