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Chinese Journal of Chemical Engineering 2021年第10期34卷 221-228页

作者： Yinfeng Zhang fang fang Yongjie Chen Min li li li Wenyue li Jinfeng Zhang International Medical Center Beijing Friendship HospitalCapital Medical UniversityBeijing100050China Key Laboratory of Molecular Medicine and Biotherapy School of Life SciencesBeijing Institute of TechnologyBeijing 100081China College of Pharmacy Chongqing Medical UniversityChongqing 400016China School of Electrical Computer and Energy EngineeringArizona State UniversityTempeArizonaUSA

In recent years,synergistic chemo-photothermal therapy has revealed promising potential in treatments against various kinds of ***,the development of superb photothermal agents with high drug loading capacity is still highly *** this work,a hollow mesoporous polyaniline nanoparticle(HPANI NP)has been developed for encapsulating chemotherapeutic drug doxorubicin(DOX)with an remarkable drug loading content as high as 37.5%.Additional PEG modification endowed the drugloaded HPANI NPs with improved water-dispersibility and *** PEG-HPANI-DOX NPs exhibited strong NIR absorbance and robust photothermal conversion capacity,exhibiting highly efficient synergistic cancer *** interestingly,the responsively released DOX molecules could emit strong red fluorescence,which could be employed to monitor the cellular endocytosis and drug release profile of PEG-HPANI-DOX ***,the as-fabricated NPs showed good biocompatibility and low toxicity,serving as a promising nanoagent for highly efficient drug delivery and cancer combination therapy.

关键词： Hollow mesoporous polyaniline nanoparticles Drug delivery Nanocarriers Chemo-photothermal therapy Cancer combination therapy

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双壁波纹钢管混凝土构件短柱轴压力学性能

哈尔滨工业大学学报 2025年第1期57卷 56-64页

作者：路博崔燕方勇王玉银李豪哈尔滨工业大学土木工程学院哈尔滨150090 结构工程灾变与控制教育部重点实验室(哈尔滨工业大学) 哈尔滨150090 深圳市市政设计研究院有限公司广东深圳518029

为改善空心钢筋混凝土柱(HRC)的使用与受力性能,提出一种双壁波纹钢管混凝土(CFDCST)构件。本文共进行了4个大尺寸双壁波纹钢管混凝土短柱与2个空心钢筋混凝土短柱的轴压试验,关键试验参数为试件类型与波纹钢管类型。分析构件的破坏模式... 详细信息

为改善空心钢筋混凝土柱(HRC)的使用与受力性能,提出一种双壁波纹钢管混凝土(CFDCST)构件。本文共进行了4个大尺寸双壁波纹钢管混凝土短柱与2个空心钢筋混凝土短柱的轴压试验,关键试验参数为试件类型与波纹钢管类型。分析构件的破坏模式,对比不同参数下构件的承载力、峰值应变、延性系数等关键力学指标,获得荷载-波纹钢管应变关系曲线以揭示试件的约束机理并验证外波纹钢管类型的影响。试验结果表明:外波纹钢管可为夹层混凝土提供约束作用,且螺旋角越小,外波纹钢管的约束作用越强;内波纹钢管则主要为夹层混凝土内壁提供有效支撑,以保持截面的完整性。名义约束效应系数与空心率相近时,由于咬口滑移影响,大螺旋角双壁波纹钢管混凝土比小螺旋角双壁波纹钢管混凝土的峰值应力、峰值应变与延性系数分别降低15.5%、21.8%与16.7%。在总用钢量相近的情况下,小螺旋角双壁波纹钢管混凝土柱的承载力、峰值应变与延性系数分别比空心钢筋混凝土柱提高10.6%、36.2%与50.0%。基于试验结果,检验了3种典型承载力公式的适用性,并提出了相应设计建议。

关键词：组合结构空心钢筋混凝土波纹钢管双壁构件约束机理

Spindle liFePO_4 particles as cathode of lithium-ion batteries synthesized by solvothermal method with glucose as auxiliary reductant

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Rare Metals 2015年第10期34卷 731-737页

作者： li Ren Xing-En li fang-fang Wang Yang Han Polymer Research Institute College of Chemical EngineeringHebei University of Technology

The well-distribution spindle li Fe PO4(LFP)nanoparticles as cathode of lithium secondary batteries were synthesized by a solvothermal reaction route at low temperature(180 °C) in which the ascorbic acid was used as reducing agent. In order to guarantee that the p H values of thermal systems were not affected too much and the reducibility of the system was enhanced at the same time,glucose was chosen as an auxiliary reductant in this reaction. The obtained powders were characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM),and laser particle analyzer. The results show that the carbon-coated uniform spindle olivine li Fe PO4/C-glucose particles(glucose as auxiliary reductant, LFP/C-G) are prepared with the size 500–600 nm and without any impurity phases. Their electrochemical properties were evaluated by electrochemical impedance spectroscopy,cyclic voltammetry, and galvanostatic charge/discharge tests. LFP/C-G has a higher conductivity and better reversible capability than carbon-coated LFP(LFP/C). The highest discharge capacity of LFP/C-G is 161.3 mAh·g-1at0.1C and 108.6 mAh·g-1at 5.0C, respectively. The results imply that the neat crystal nanostructure of LFP/C-G has excellent capacity retention and cycling *** adding of glucose is the key factor for the welldistribution and neat crystal structure of nanoparticles,thus the electrochemical performances of materials are improved.

关键词： lithium-ion battery liFePO4 Spindle Solvothermal G

Design optimization of unsteady airfoils with continuous adjoint method

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Applied Mathematics and Mechanics(English Edition) 2015年第10期36卷 1329-1336页

作者： liang fang Xiaowei li Shanghai Institute of Applied Mathematics and Mechanics Shanghai University

In this paper, a new unsteady aerodynamic design method is presented based on the Navier-Stokes equations and a continuous adjoint approach. A basic framework of time-accurate unsteady airfoil optimization which adopts time-averaged aerodynamic coefficients as objective functions is presented. The time-accurate continuous adjoint equation and its boundary conditions are derived. The flow field and the adjoint equation are simulated numerically by the finite volume method （FVM）. Feasibility and accuracy of the approach are perfectly validated by the design optimization results of the plunging NACA0012 airfoil.

关键词： airfoil optimization continuous adjoint method unsteady flow

Sub-Nanometer Displacement Sensor Based on Coupling of Balanced Loss and Gain Cavities

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Photonic Sensors 2019年第3期9卷 259-267页

作者： Yuntuan fang Xiaoxue li School of Computer Science and Telecommunication Engineering Jiangsu University Zhenjiang 212013 China

Sub-nanometer displacement measurement is still a challenge in the current sensor field. In this study, a new type of displacement sensor is designed which is based on the coupling effect of two balanced gain and loss resonators. The optical properties of the sensor have been studied through the coupled mode theory and scatter matrix. The pole effect in the coupling system can be used to measure the subanometer displacement. The resolution of the sensor can reach 0.001 nm over a dynamic range of 20 nm. The sensor has the highest sensitivity within the range of one *** environmental disturbance and structure parameter perturbation have been demonstrated to make trivial effect on the sensor performance.

关键词： Displacement sensor PT-symmetry pole

Novel method for hybrid multiple attribute decision making based on TODIM method

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Journal of Systems Engineering and Electronics 2015年第5期26卷 1023-1031页

作者： fang Wang Hua li School of Economics and Management Xidian University

The TODIM(an acronym in Portuguese for interactive and multiple attribute decision making) method is a valuable tool to solve the multiple attribute decision making(MADM) problems considering the behavior of the decision maker(DM), while it cannot be used to handle the problem with unknown weight information on attributes. In this paper, a novel method based on the classical TODIM method is proposed to solve the hybrid MADM problems with unknown weight information on attributes,in which attribute values are represented in four different formats:crisp numbers, interval numbers, triangular fuzzy numbers and trapezoidal fuzzy numbers. Firstly, the positive-ideal alternative and negative-ideal alternative are determined, and the gain and loss matrices are constructed by calculating the gain and loss of each alternative relatived to the ideal alternatives concerning each attribute based on different distance calculation formulas, which may avoid the information missing or information distortion in the process of unifying multiform attribute values into a certain representation form. Secondly, an optimization model based on the maximizing deviation(MD) method, by which the attribute weights can be determined, is established for the TODIM method. Further, the calculation steps to solve the hybrid MADM problems are given. Finally, two numerical examples are presented to illustrate the usefulness of the proposed method, and the results show that the DM’s psychological behavior, attribute weights and the transformed information would highly affect the ranking orders of alternatives.

关键词： hybrid multiple attribute decision making TODIM ranking

Robust multi-objective optimization of rolling schedule for tandem cold rolling based on evolutionary direction differential evolution algorithm

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Journal of Iron and Steel Research International 2017年第8期24卷 795-802页

作者： Yong li Lei fang School of Electrical Engineering Shenyang University of TechnologyShenyang 110873LiaoningChina School of Information Science and Engineering Shenyang University of TechnologyShenyang 110873LiaoningChina

According to the actual requirements,profile and rolling energy consumption are selected as objective functions of rolling schedule optimization for tandem cold *** of mechanical wear,roll diameter has some uncertainty during the rolling process,ignoring which will cause poor robustness of rolling *** order to solve this problem,a robust multi-objective optimization model of rolling schedule for tandem cold rolling was established.A differential evolution algorithm based on the evolutionary direction was *** algorithm calculated the horizontal angle of the vector,which was used to choose mutation *** chosen vector contained converging direction and it changed the random mutation operation in differential evolution *** of the proposed algorithm was verified by two ***,in order to ensure that delivery thicknesses have descending order like actual rolling schedule during evolution,a modified Latin Hypercube Sampling process was ***,the proposed algorithm was applied to the model *** showed that profile was improved and rolling energy consumption was reduced compared with the actual rolling ***,robustness of solutions was ensured.

关键词： Robust multi-objective optimization Rolling schedule Evolutionary direction Horizontal angle Mutation vector

Generalized Multivariate Gumbel Distributions——Dependence,Aging Properties and Applications

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Journal of Systems Science & Complexity 2016年第6期29卷 1752-1772页

作者： fang Rui li Xiaohu li linxiong Department of Mathematics Shantou University Department of Mathematical Sciences Stevens Institute of Technology Department of Mathematics University of New Orleans

This paper introduces a generalized multivariate Gumbel(GMG) distribution using a survival *** dependence properties of the GMG distribution and some analytical properties of the generators of the GMG distribution are ***,the authors also investigate the dependence behavior of the residual lifetime vector of the GMG *** an illustration,the GMG distribution is applied to fit a real data set.

关键词： Coefficient of orthant dependence residual lifetime vector survival copula upper orthantorder.

On the structure and representations of non-balanced quantum doubles

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Applied Mathematics(A Journal of Chinese Universities) 2012年第4期27卷 475-488页

作者： CHEN li-li li fang College of Mathematics and Physics Qingdao University of Science and TechnologyQingdao 266061China Department of Mathematics Zhejiang UniversityHangzhou 310027China

For a field k and two finite groups G and X, when G acts on X from the right by group automorphisms, there is a Hopf algebra structure on k-space （kX°P）＊ kG （see Theorem 2.1）, called a non-balanced quantum double and denoted by Dx（G）. In this paper, some Hopf algebra properties of Dx （G） are given, the representation types of Dx （G） viewed as a k-algebra are discussed, the algebra structure and module category over Dx（G） are studied. Since the Hopf algebra structure of non-balanced quantum double DX （G） generMizes the usual quantum double D（G） for a finite group G, all results about Dx（G） in this paper can also be used to describe D（G） as a special case and the universal R-matrix of Dx （G） provides more solutions of Yang-Baxter equation.

关键词： non-balanced quantum double Hopf Mgebra representation type quasi-triangularity quiver.

Nitrogen release and re-adsorption dynamics on crop straw residue during straw decomposition in an Alfisol

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Journal of Integrative Agriculture 2021年第1期20卷 248-259页

作者： li Ji-fu ZHONG fang-fang Engineering Research Center of Ecology and Agricultural Use of Wetland Ministry of Education/College of AgricultureYangtze UniversityJingzhou 434025P.R.China

Returning crop straw to the field not only improves the nitrogen(N) supplying capacity and N retention of soil but also decreases the amount of rural organic waste and prevents air pollution. Therefore, understanding the mechanisms of the N release and re-adsorption dynamics on crop straw residue during straw decomposition in agricultural soil is important, and this understanding can help us strengthen N fertilizer management during the crop growth period. An on-farm incubation experiment was conducted in the Jianghan Plain in Central China under flooded conditions using the nylon mesh bag method. Results showed that the decomposition rate of crop straw was much faster at the beginning of the incubation stage, whereas it was steady during the later stage with no observed differences among the three types of crop straw. After 120 d of incubation, the cumulative decomposition proportion of rice straw, wheat straw and rape straw was 72.9, 56.2, and 66.9%, respectively. The proportion of N that released from the three crop straws was 52.0, 54.4 and 54.9%, respectively. The zeta potentials and Brunauer, Emmett and Teller(BET) surface area of the rice, wheat and rape straw residues increased gradually as the decomposition period progressed. The water adsorption capacity of the rice straw was significantly affected during the decomposition period. The saturated water adsorption capacity of rice straw was the highest at 30 d of decomposition(4.17 g g^–1) and then decreased slightly. The saturated water adsorption of wheat and rape straws reached the lowest value at 30 d and then gradually increased and became stable. All the results demonstrated that crop straw and straw residue can re-adsorb NH4^+ ions from the surrounding solution. The re-adsorption was affected by the decomposition period and concentration of exogenous NH4^+ and was independent of the crop species via the combined efforts of physical and chemical adsorption, ion exchange and water retention on residue su

关键词： adsorption decomposition nitrogen(N) Alfisol straw substrate