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Researches on the Structure and Properties of Mullite Solid Solution Made from Industrial Waste

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Chinese Journal of Structural Chemistry 2006年第8期25卷 965-970页

作者： RUAN Yu-zhong YU Yan wu Ren-Ping College of Materials Science and Engineering Fuzhou University Fuzhou 350002 China

The waste slag from aluminum profile factory and silicon fine powder from ferroalloy factory were utilized as the main raw materials to synthesize mullite solid solution Al4＋2xSi2-xO10-x/2, whose defect formation mechanism, crystalline phase composition, crystal cell parameters, microstructures and morphologies were characterized in detail by XRD and SEM. The results show that because of the ultrafine particle size of the materials, the content of mullite solid solution synthesized by this method is higher than that by regular method. Keywords： waste slag from aluminum factory, silicon fine powder, mullite, solid solution

关键词： waste slag from aluminum factory silicon fine powder mullite solid solution

FLUID DYNAMIC PERFORMANCE OF GROOVED PLANING BOAT AND ITS EFFECT ON RESISTANCE

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Journal of Hydrodynamics 2005年第5期17卷 571-579页

作者： SHI zhong-kun wu Fang-liang ZHOU Feng College of Traffic Science and Engineering Huazhong University of Science and Technology Wuhan430074 China

In this paper, the fluid dynamic performance for a new boat form grooved planing boats is analyzed, and the results of resistance tests for seven grooved planing boat models of different types are presented in the form of curves of attack angle and resistance-weight ratio versus Froude number. According to these curves, the effect of some parameters of the boat type on the resistance is analyzed.

关键词： grooved planing boat fluid dynamic performanee resistanee

Screening study of transition metal oxide catalysts supported on ceria-modified titania for catalytic oxidation of toluene

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第6期12卷 461-469页

作者： Dan-qing YU Yue LIU zhong-biao wu Department of Environmental Engineering Zhejiang University Hangzhou 310027 China Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control Hangzhou 310027 China

Six transition metal oxides were added in ceria-modified titania using a sol-gel method for catalytic oxidation of *** MnOx based catalyst was found to be the most active one,with which toluene could be decomposed completely at 200 *** greatest Mn/Ti and molar ratio of the mobile oxygen to the total oxygen concentration,together with a large surface area and a low reduction peak-starting temperature,would result in its best activity in toluene oxidation.

关键词： Transition metal oxides CeO2/TiO2 Sol-gel method Catalytic oxidation Toluene

Dynamic Consensus of High-order Multi-agent Systems and Its Application in the Motion Control of Multiple Mobile Robots

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International Journal of Automation and computing 2012年第1期9卷 54-62页

作者： zhong-Qiang wu Yang Wang Key Laboratory of Industrial Computer Control Engineering Yanshan UniversityQiuhuangdao 066004PRC

In this paper, the leader-following consensus problem for multi-agent linear dynamic systems is considered. All agents and leader have identical multi-input multi-output （MIMO） linear dynamics that can be of any order, and only the output information of each agent is delivered throughout the communication network. When the interaction topology is fixed, the leader-following consensus is attained by Ho~ dynamic output feedback control, and the sufficient condition of robust controllers is equal to the solvability of linear matrix inequality （LMI）. The whole analysis is based on spectral decomposition and an equivalent decoupled structure achieved, and the stability of the system is proved. Finally, we extended the theoretical results to the case that the interaction topology is switching. The simulation results for multiple mobile robots show the effectiveness of the devised methods.

关键词： Multi-agent systems consensus problem dynamic output feedback linear matrix inequality (LMI) multiple mobile robots.

Room-temperature fast assembly of 3D macroscopically porous graphene frameworks for binder-free compact supercapacitors with high gravimetric and volumetric capacitances

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Journal of Energy Chemistry 2021年第10期30卷 23-28,I0002页

作者： Sen Wang Xiao Wang Chenglin Sun zhong-Shuai wu State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of Sciences457 Zhongshan RoadDalian 116023LiaoningChina Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of Sciences457 Zhongshan RoadDalian 116023LiaoningChina University of Chinese Academy of Sciences Shijingshan District19 A Yuquan RdBeijing 100049China

Synthesis and applications of three-dimensional(3 D)porous graphene frameworks(GFs)have attracted extensive interest owing to their intriguing advantages of high specific surface area,enriched porosity,excellent electrical conductivity,exceptional compressibility and ***,it is still challenging for economically viable,fast and scalable assembly of 3 D GFs at ***,we reported a one-step scalable strategy for fast self-assembly of graphene oxide into 3 D macroscopically porous GFs,with assistance of polyoxometalates(POM)as functional cross-linker and hydrazine hydrate as reductant at *** resulting 3 D interconnected macroporous POM-GFs uniformly decorated with ultrasmall POM nanoclusters were directly processed into binder-/additive-free film compact electrodes(1.68 g cm^(-3))with highly aligned,layer-stacked structure and electrically conductivity(622 S m-1)for high-performance supercapacitors,showing an impressive gravimetric capacitance of205 F g-1,volumetric capacitance of 334 F cm^(-3) at 1 mV s^(-1),and remarkable cycling stability with capacitance retention of 83%after 10,000 cycles,outperforming the most reported ***,the solid-state supercapacitors offered excellent gravimetric capacitance of 157 F g-1 exceptionally volumetric capacitance of 115 F cm^(-3) at 2 mV s^(-1) based on single electrode,and volumetric energy density of2.6 mWh cm^(-3).Therefore,this work will open novel opportunities to room-temperature fast assembly of 3 D porous graphene architectures for high-energy-density supercapacitors.

关键词： Graphene frameworks Room-temperature fast assembly Supercapacitors

An LQP-Based Symmetric Alternating Direction Method of Multipliers with Larger Step Sizes

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Journal of the Operations Research Society of China 2019年第2期7卷 365-383页

作者： zhong-Ming wu Min Li School of Economics and Management Southeast UniversityNanjing 210096China School of Management and Engineering Nanjing UniversityNanjing 210093China

Symmetric alternating directionmethod of multipliers(ADMM)is an efficient method for solving a class of separable convex optimization *** method updates the Lagrange multiplier twice with appropriate step sizes at each ***,such step sizes were conservatively shrunk to guarantee the convergence in recent *** this paper,we are devoted to seeking larger step sizes whenever *** logarithmic-quadratic proximal(LQP)terms are applied to regularize the symmetric ADMM subproblems,allowing the constrained subproblems to then be converted to easier unconstrained ***,we prove the global convergence of such LQP-based symmetric ADMM by specifying a larger step size ***,the numerical results on a traffic equilibrium problem are reported to demonstrate the advantage of the method with larger step sizes.

关键词： Convex optimization Symmetric alternating direction method of multipliers Logarithmic-quadratic proximal regularization Larger step sizes Global convergence

Water reduction by an organic single-chromophore photocatalyst

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Chinese Journal of Structural Chemistry 2024年第8期43卷 12-14页

作者： Kun Tang Yu-wu zhong Beijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular SciencesKey Laboratory of PhotochemistryInstitute of ChemistryChinese Academy of SciencesBeijing100190China School of chemical Sciences University of Chinese Academy of SciencesBeijing100049China

Photocatalytic reduction of water into hydrogen(H_(2))provides a promising means for the conversion and storage of solar energy[1-3].A pioneering work in this field was reported by Fujishima and Honda in 1972,who used... 详细信息

关键词： catalyst photochemical ultraviolet

Syntheses and studies of hydantoin derivatives as potential anti-tuberculosis inhibitors

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Chinese Chemical Letters 2012年第2期23卷 133-136页

作者： Yan Liu wu zhong Song Li School of Pharmaceutical Engineering Shenyang Pharmaceutical UniversityShenyang 110016China Laboratory of Computer-Aided Drug Design&Discovery Beijing Institute of Pharmacology and ToxicologyBeijing 100850China

A short and efficient synthesis of（Z）-2-substituted-5-（4-（（2-substitued-5-oxoimidazolidin-4-ylidene）methyl）benzamido）ben-zoic acid derivatives（8a-g） as potential type of FabH inhibitors is *** structures wer... 详细信息

关键词： Tuberculosis Mycobacterium tuberculosis FabH Enzyme inhibitor Synthesis NOE

A new genetic factor for root gravitropism in rice (Oryza sativa L.)

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2009年第10期10卷 777-783页

作者： Jiang-hua SHI Xi HAO zhong-chang wu Ping wu State Key Laboratory of Plant Physiology and Biochemistry College of Life Sciences Zhefiang University Hangzhou 310058 China

Root gravitropism is one of the important factors to determine root architecture. To understand the mechanism underlying root gravitropism, we isolated a rice （Xiushui63） mutant defective in root gravitropism, designated as glsl. Vertical sections of root caps revealed that glsl mutant displayed normal distribution of amyloplast in the columella cells compared with the wild type. The glsl mutant was less sensitive to 2,4-dichlorophenoxyacetic acid （2,4-D） and ct-naphthaleneacetic acid （NAA） than the wild type. Genetic analysis indicated that the phenotype ofglsl mutant was caused by a single recessive mutation, which is mapped in a 255-kb region between RM16253 and CAPS1 on the short arm of chromosome 4.

关键词： Oryza sativa L. Root gravitropism Genetic factor