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Water Science and Engineering 2013年第3期6卷 272-282页

作者： min-min wang Li wang College of Material Science and Art Design Inner Mongolia Agricultural University

A series of carboxymethyl cellulose/organic montmorillonite （CMC/OMMT） nanocomposites with different weight ratios of carboxymethyl cellulose （CMC） to organic montmorillonite （OMMT） were synthesized under different conditions. The nanocomposites were characterized by the Fourier transform infrared （FT-IR） spectrophotometer, X-ray diffraction （XRD） method, transmission electron microscope （TEM）, scanning electron microscope （SEM）, and thermal gravimetric （TG） analysis. The results showed that the introduction of CMC may have different influences on the physico-chemical properties of OMMT and intercalated-exfoliated nanostructures were formed in the nanocomposites. The effects of different reaction conditions on the adsorption capacity of samples for Congo Red （CR） dye were investigated by controlling the amount ofhexadecyl trimethyl ammonium bromide （CTAB）, the weight ratio of CMC to OMMT, the reaction time, and the reaction temperature. Results from the adsorption experiment showed that the adsorption capacity of the nanocomposites can reach 171.37 rag/g, with the amount of CTAB being 1.0 cation exchange capacity （CEC） of MMT, the weight ratio of CMC to OMMT being l：l, the reaction time being 6 h, and the reaction temperature being 60~C. The CMC/OMMT nanocomposite can be used as a potential adsorbent to remove CR dye from an aqueous solution.

关键词： carboxymethyl cellulose organic montmorillonite nanocomposite adsorption,Congo Red dye

Distributed Cooperative Learning for Discrete-Time Strict-Feedback Multi Agent Systems Over Directed Graphs

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IEEE/CAA Journal of Automatica Sinica 2022年第10期9卷 1831-1844页

作者： min wang Haotian Shi Cong wang IEEE the School of Automation Science and Engineering South China University of TechnologyGuangzhou 510641 Peng Cheng Laboratory Shenzhen 518055China the School of Control Science and Engineering Shandong UniversityJinan 250061China the Center for Intelligent Medical Engineering Shandong UniversityJinan 250061China

This paper focuses on the distributed cooperative learning(DCL)problem for a class of discrete-time strict-feedback multi-agent systems under directed *** with the previous DCL works based on undirected graphs,two main challenges lie in that the Laplacian matrix of directed graphs is nonsymmetric,and the derived weight error systems exist n-step *** novel lemmas are developed in this paper to show the exponential convergence for two kinds of linear time-varying(LTV)systems with different phenomena including the nonsymmetric Laplacian matrix and time ***,an adaptive neural network(NN)control scheme is proposed by establishing a directed communication graph along with n-step delays weight updating ***,by using two novel lemmas on the extended exponential convergence of LTV systems,estimated NN weights of all agents are verified to exponentially converge to small neighbourhoods of their common optimal values if directed communication graphs are strongly connected and *** stored NN weights are reused to structure learning controllers for the improved control performance of similar control tasks by the“mod”function and proper time series.A simulation comparison is shown to demonstrate the validity of the proposed DCL method.

关键词： Cooperative learning control directed graphs discrete-time nonlinear system neural networks(NNs) strict-feedback systems

Energy Estimates on Existence of Extremals for Trudinger–Moser Inequalities

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Acta Mathematica Sinica,English Series 2020年第7期36卷 829-841页

作者： Ya min wang School of Mathematics Renmin University of ChinaBeijing 100872P.R.China

LetΩbe a smooth bounded domain in R2,W01,2(Ω)be the standard Sobolev *** the method of energy estimate developed by Malchiodi–Martinazzi(***.,16,893–908(2014)),Mancini–Martinazzi(*** Differential Equations,56,94(2017))and Mancini–Thizy(*** Equations,266,1051–1072(2019)),we reprove the results of Carleson–Chang(***.,110,113–127(1986)),Flucher(***.,67,471–497(1992)),Li(Acta ***.,22,545–550(2006))and Su(***.,in press).Namely,for any real numberα≤1,the supremum■can be achieved by some function v∈W01,2(Ω)with║?v║22≤4π.

关键词： space. Existence 1,2

Singular Supercritical Trudinger-Moser Inequalities and the Existence of Extremals

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Acta Mathematica Sinica,English Series 2020年第8期36卷 873-888页

作者： Xu min wang School of Mathematical Sciences Beijing Normal UniversityBeijing 100875P.R.China

In this paper,we present the singular supercritical Trudinger-Moser inequalities on the unit ball B in Rn,where n≥*** precisely,we show that for any given α>0 and 0 详细信息

In this paper,we present the singular supercritical Trudinger-Moser inequalities on the unit ball B in Rn,where n≥*** precisely,we show that for any given α>0 and 0

关键词： Singular supercritical Trudinger-Moser inequality radial lemma concentration-compactness principle extremal functions

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1-萘酚的太赫兹光谱实验及理论研究

原子与分子物理学报 2025年第4期42卷 33-39页

作者：王利民朱立江孙延华国家能源集团煤焦化有限责任公司乌海016000

1-萘酚是煤化工产物萘的合成产物,对环境和人体健康有危害.采用太赫兹时域光谱(THz-TDS)技术,获得了1-萘酚在0.5~4.0 THz范围内的实测太赫兹吸收谱,同时运用密度泛函理论(DFT)平面波赝势模型对1-萘酚晶胞模型进行理论光谱计算,探讨了平... 详细信息

1-萘酚是煤化工产物萘的合成产物,对环境和人体健康有危害.采用太赫兹时域光谱(THz-TDS)技术,获得了1-萘酚在0.5~4.0 THz范围内的实测太赫兹吸收谱,同时运用密度泛函理论(DFT)平面波赝势模型对1-萘酚晶胞模型进行理论光谱计算,探讨了平面波截断能在800~1600 eV范围内对理论光谱的影响,并对吸收峰的振动模式进行了理论归属.实验结果表明,1-萘酚在0.5~4.0 THz范围内有1.14 THz、1.60 THz、2.16 THz、2.81 THz、3.56 THz共5个吸收峰,平面波截断能1400 eV下得到的理论吸收谱与实测吸收谱在吸收峰个数、峰位、归一化峰强度上均有较好的一致性,5个吸收峰的振动模式均是以两元环为平面的受氢键束缚的面外摇摆振动或者面内扭转振动引起的.这为太赫兹技术对1-萘酚的识别提供了实验和理论基础,具有一定的理论意义和实际应用价值.

关键词：太赫兹密度泛函理论(DFT) 理论光谱 1-萘酚

Electrospun multifunctional tissue engineering scaffolds

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Frontiers of Materials Science 2014年第1期8卷 3-19页

作者： Chong wang min wang Department of Mechanical Engineering The University of Hong Kong Pokfulam Road Hong Kong China

Tissue engineering holds great promises in providing successful treat- ments of human body tissue loss that current methods are unable to treat or unable to achieve satisfactory clinical outcomes. In scaffold-based tissue engineering, a high- performance scaffold underpins the success of a tissue engineering strategy and a major direction in the field is to create multifunctional tissue engineering scaffolds for enhanced biological performance and for regenerating complex body tissues. Electrospinning can produce nanofibrous scaffolds that are highly desirable for tissue engineering. The enormous interest in electrospinning and electrospun fibrous structures by the science, engineering and medical communities has led to various developments of the electrospinning technology and wide investigations of eiectrospun products in many industries, including biomedical engineering, over the past two decades. It is now possible to create novel, multicomponent tissue engineering scaffolds with multiple functions. This article provides a concise review of recant advances in the R ＆ D of electrospun multifunctional tissue engineering scaffolds. It also presents our philosophy and research in the designing and fabrication of electrospun multicomponent scaffolds with multiple functions.

关键词： electrospinning monocomponent multicomponent scaffold corHhell drug biomolecule growth factor controlled release

Generalized Virial Theorem for Mixed State When Hamiltonians Include Coordinate-Momentum Couplings

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Communications in Theoretical Physics 2008年第5期49卷 1173-1176页

作者： wang min Department of Material Science and Engineering University of Science and Technology of China Hefei 230026 China

The generalized Virial theorem for mixed state, derived from the generalized Hellmann Feynman theorem, only applies to Hamiltonians in which potential of coordinates is separate from momentum energy term. In this paper we discuss Virial theorem for mixed state for some Hamiltonians with coordinate-momentum couplings in order to know their contributions to internal energy.

关键词： generalized Virial theorem mixed state

TAR~*:an improved process similarity measure based on unfolding of Petri nets

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计算机集成制造系统 2012年第8期18卷 1774-1784页

作者： wang Wen-xing wang Jian-min School of Software Tsinghua University Beijing 100084 China ministry of Education Key Laboratory for Information System Security Tsinghua UniversityBeijing 100084 China Tsinghua National Laboratory for Information Science and Technology Beijing 100084 China

Determining the similarity degree between process models was very important for their management,reuse,and *** approaches either focused on process model's structural aspect,or had inefficiency or imprecision in behavioral *** at these problems,a novel similarity measure which extended an existing method named Transition Adjacent Relation(TAR) with improved precision and efficiency named TAR * was *** ability of measuring similarity was extended by eliminating the duplicate tasks without impacting the *** precision,TARs was classified into repeatable and unrepeatable ones to identify whether a TAR was involved in a *** new kinds of TARs were added,one related to the invisible tasks after the source place and before sink place,and the other representing implicit *** efficiency,all TARs based on unfolding instead of its reach ability graph of a labeled Petri net were calculated to avoid state space *** on artificial and real-world process models showed the effectiveness and efficiency of the proposed method.

关键词： transition adjacent relation unfolding Petri nets behavioral similarity

Enterprise resource planning implementation decision & optimization models

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Journal of Systems Engineering and Electronics 2008年第3期19卷 513-521页

作者： wang Shaojun wang Gang Lü min Gao Guoan Advanced Manufacturing Technology Center Harbin Inst. of Technology Harbin 150001 P. R. China

To study the uncertain optimization problems on implementation schedule, time-cost trade-off and quality in enterprise resource planning （ERP） implementation, combined with program evaluation and review technique （PERT）, some optimization models are proposed, which include the implementation schedule model, the timecost trade-off model, the quality model, and the implementation time-cost-quality synthetic optimization model. A PERT-embedded genetic algorithm （GA） based on stochastic simulation technique is introduced to the optimization models solution. Finally, an example is presented to show that the models and algorithm are reasonable and effective, which can offer a reliable quantitative decision method for ERP implementation.

关键词： optimization model ERP chance-constrained programming PERT genetic algorithm time cost,quality.

Effective removal of phosphorus from high phosphorus steel slag using carbonized rice husk

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Journal of Environmental Sciences 2023年第2期124卷 156-164页

作者： Zhongliang wang Yanping Bao Dazhi wang min wang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

High phosphorus steel slag and carbonized rice husk are two common wastes characterized by high generation and low secondary use *** the reduction of high phosphorus steel slag by biomass,both wastes were fully utilized,thus reducing the negative impact on the *** this study,variables such as temperature,time,and amount of reactants were changed to determine the optimal conditions for the reaction of steel slag with carbonized rice husk at high *** actual amount of reducing agent consumed during the reduction was significantly greater than that predicted by theoretical *** three carbon equivalent of carbonized rice husk and maintaining at 1500℃ for 30 min could remove 79.25% of P_(2)O_(5) in the *** modeling the material cycle in which high phosphorus steel slag was treated with biomass,the product could be used for crop ***,the reduced iron and residual steel slag can be used tomake steel again,thereby leading to a sharp reduction in fossil fuel usage and greenhouse gas emissions in this process.

关键词： High phosphorus steel slag Carbonized rice husk Reduction dephosphorization Material cycle