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Plasmonic tandem heterojunctions enable high-efficiency charge transfer for broad spectrum photocatalytic hydrogen production

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Journal of Energy Chemistry 2025年第1期100卷 710-720页

作者： Wenxuan Chen Xiu-Qing Qiao Guo Hui Bojing Sun Dongfang Hou Meidi Wang Xueqian wu Tao wu Dong-Sheng Li College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Hubei Three Gorges Laboratory College of Chemistry and Materials Science and Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University

Rational engineering of semiconductor photocatalysts for efficient hydrogen production is of great significance but still challenging,primarily due to the limitations in charge transfer ***,a fascinating plasmonic tandem heterojunction with the hc-CdS/Mo2C@C heterostructure is aimfully prepared for effectively promoting the charge separation kinetics of the CdS photocatalyst via the synergistic strategy of phase junction,Schottky junction,and photothermal *** difference in atomic configuration between cubic-CdS （c-CdS） and hexagonal-CdS （h-CdS） leads to effective charge separation through a typical Ⅱ charge transfer mechanism,and plasmonic Schottky junction further extracts the electrons in the hc-CdS phase junction to realize gradient charge ***,the photothermal effect of Mo2C@C helps to expand the light absorption,accelerate charge transfer kinetics,and reduce the hydrogen evolution energy *** carbon layer provides a fast channel for charge transfer and protects the photocatalyst from *** a result,the optimized hc-CMC photocatalyst exhibits a significantly high photocatalytic H2production activity of 28.63 mmol/g/h and apparent quantum efficiency of 61.8%,surpassing most of the reported *** study provides a feasible strategy to enhance the charge transfer kinetics and photocatalytic activity of CdS by constructing plasmonic tandem heterogeneous junctions.

关键词： Heterojunctions LSPR Photocatalyst Phase junction Schottky junction Photothermal effect

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胆石症患者胆道感染的病原菌分布与耐药性分析

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中国生化药物杂志 2017年第6期37卷 407-409页

作者：尚敏杰胡智明张成武吴伟顶王知非浙江省人民医院肝胆胰腺外科

目的探究胆石症患者胆道感染的病原菌分布与耐药性情况,总结临床经验.方法针对160例胆石症患者进行分析,统计其中出现胆道感染的患者比例,针对患者进行胆汁和静脉血液的收集,检测其病原菌的分布情况,同时针对其耐药性进行分析. 结果 ... 详细信息

目的探究胆石症患者胆道感染的病原菌分布与耐药性情况,总结临床经验.方法针对160例胆石症患者进行分析,统计其中出现胆道感染的患者比例,针对患者进行胆汁和静脉血液的收集,检测其病原菌的分布情况,同时针对其耐药性进行分析. 结果胆石症患者胆道感染发生率为62.5%;胆汁培养阳性率为62.5%,血液检测阳性率为37.5%.革兰阳性菌中包括粪肠球菌、屎肠球菌、葡萄球菌属等,革兰阴性菌则包括大肠埃希菌、肺炎克雷伯菌、铜绿假单胞菌等;革兰阳性菌对于庆大霉素和红霉素的耐药性较高,革兰阴性菌则对于氨苄西林和左氧氟沙星的耐药性较高.结论胆石症患者胆道感染的病原菌分布与耐药性分析发现,其临床的病原菌分布较为广泛,同时病原菌针对不同抗菌药物均呈现出一定的耐药性,因此临床在使用抗菌药物时应该合理选择,以期充分发挥药物效果.

关键词：胆石症胆道感染病原菌分布耐药性

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Sex-dependent alterations in extracellular vesicles linking chronic spinal cord injury to brain neuroinflammation and neurodegeneration

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Neural Regeneration Research 2025年第2期20卷 483-484页

作者： Yun Li Junfang wu Department of Anesthesiology&Shock Trauma and Anesthesiology Research(STAR)CenterUniversity of Maryland School of MedicineBaltimoreMDUSA

Traumatic spinal cord injury(SCI)is a devastating exogenous injury with long-lasting consequences and a leading cause of death and disability *** in assistive technology,rehabilitative interventions,and the ability to identify and intervene in secondary conditions have significantly increased the long-term survival rate of SCI patients,with some people even living well into their seventh or eighth *** survival changes have led neurotrauma researchers to examine how SCI interacts with brain *** health and epidemiological data showed that patients with long-term SCI can have a lower life expectancy and quality of life,along with a higher risk of comorbidities and complications.

关键词： alterations inflammation injury

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Ammonia pyrolysis oxidation excited by nanosecond pulsed discharge:Global/fluid models hybrid solution

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Journal of Energy Chemistry 2025年第1期100卷 385-396页

作者： mingming Zhang Hanyu wu Qi Chen Jiaxin Yang Bonan Liu School of Mechanical Electronic and Control Engineering Beijing Jiaotong University China University of Petroleum

The kinetic characteristics of plasma-assisted oxidative pyrolysis of ammonia are studied by using the global/fluid models hybrid solution ***,the stable products of plasma-assisted oxidative pyrolysis of ammonia are *** results show that the consumption of NH3/O2and the production of N2/H2change linearly with the increase of voltage,which indicates the decoupling of nonequilibrium molecular excitation and oxidative pyrolysis of ammonia at low ***,the detailed reaction kinetics mechanism of ammonia oxidative pyrolysis stimulated by a nanosecond pulse voltage at low pressure and room temperature is *** on the reaction path analysis,the simplified mechanism is *** detailed and simplified mechanism simulation results are compared with experimental data to verify the accuracy of the simplified ***,based on the simplified mechanism,the fluid model of ammonia oxidative pyrolysis stimulated by the nanosecond pulse plasma is established to study the pre-sheath/sheath behavior and the resultant consumption and formation of key *** results show that the generation,development,and propagation of the pre-sheath have a great influence on the formation and consumption of *** consumption of NH3by the cathode pre-sheath is greater than that by the anode pre-sheath,but the opposite is true for OH and O（1S）.However,within the sheath,almost all reactions do not ***,by changing the parameters of nanosecond pulse power supply voltage,it is found that the electron number density,electron current density,and applied peak voltages are not the direct reasons for the structural changes of the sheath and ***,the discharge interval has little effect on the sheath structure and gas mixture *** research results of this paper not only help to understand the kinetic promotion of non-equilibrium excitation in the process of oxidative pyrolysis but also help to explore th

关键词： Nanosecond pulsed discharge Ammonia Oxidative pyrolysis Fluid model Global model

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Strong Mixing Subshift of Finite Type and Hausdorff Measure of Its Chaotic Set

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Acta Mathematica Sinica,English Series 2011年第4期27卷 789-798页

作者： Wan Gan SONG zhi HU Hua ming wu School of Mathematical Science Peking University Beijing 100871 P. R. China School of Computer Science and Technology Huaibei Coal Industry Teachers Huaibei 235000 P. R. China School of Mathematical and Computer Science Zhanjiang Teachers College Zhanjiang 524048 P. R. China

We present a sufficient and necessary condition for the subshift of finite type to be a measure-preserving transformation or to be a strong mixing measure-preserving transformation with respect to the Hausdorff measur... 详细信息

关键词： Symbolic space a finite subshift chaotic set Hausdorff measure

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不锈钢及铜合金的切割新技术(Ⅲ)——切缝质量

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华南工学院学报 1982年第2期 150-159页

作者：李志明伍月华梅福欣

本文着重分析几个主要切割参数对切缝质量的影响,以及对所选取的切割规范进行不锈钢及铜合金切割,切缝是在常规工艺条件上焊接,焊后分别对焊缝取试样进行金相分析、抗晶间腐蚀及机械性能试验.试验结果表明:不锈钢及铜合金的喷水切割缝... 详细信息

本文着重分析几个主要切割参数对切缝质量的影响,以及对所选取的切割规范进行不锈钢及铜合金切割,切缝是在常规工艺条件上焊接,焊后分别对焊缝取试样进行金相分析、抗晶间腐蚀及机械性能试验.试验结果表明:不锈钢及铜合金的喷水切割缝与机械加工的切缝焊接质量一样高,切割缝不作任何处理完全能满足焊接工艺要求.

关键词：铜合金铜基合金重有色金属合金切缝质量

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In-situ observation of magnetization reversal process of Sm(Co,Cu,Fe,Zr)_z magnets with different Fe contents

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Rare Metals 2020年第3期39卷 250-255页

作者： Shuo wu Dong-Tao Zhang ming Yue Yun-Qiao Wang zhi-Feng Shang Dan wu Jing-ming Liang College of Materials Science and Engineering Key Laboratory of Advanced Functional MaterialsMinistry of Education of ChinaBeijing University of TechnologyBeijing100124China

Sm(Co,Cu,Fe,Zr)z magnets have drawn much attention for high-temperature applications due to their high Curie temperature,strong corrosion resistance and thermal *** effect of increasing Fe content on the distribution of elements and squareness(Sr)of demagnetization curves were investigated for two kinds of magnets with different nominal compositions of Sm(CobalFe0.15-Cu0.07Zr0.03)7.8 and Sm(CobalFe0.28Cu0.07Zr0.03)6.6 in this *** magnetic properties of the magnets with higher Fe content fluctuate greatly after different solution treatments,indicating that they are more sensitive to the process *** increase in Fe content can obviously enhance the cellular phase ***,inhomogeneous Cu distribution is observed in the Sm(CobalFe0.28-Cu0.07Zr0.03)6.6 magnet,resulting in the different cellular structures and corresponding magnetic domain patterns in different regions in the inner ***,the lower Cu content regions are responsible for the wider magnetic domain,which have weaker resistance to applied magnetic *** a result,Sr of demagnetization curve decreases with the increase in Fe content due to the inhomogeneous Cu distribution,which was confirmed by in-situ observation of electron probe micro-analyzer(EPMA)and magneto-optical Kerr optical microscope(MOKE).

关键词： Sm(Co,Cu,Fe,Zr)_z magnets Cu distribution Microstructure Magnetic properties Magnetic domain Squareness

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Convergence proof of the DSMC method and the Gas-Kinetic Unified Algorithm for the Boltzmann equation

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Science China(Physics,Mechanics & Astronomy) 2013年第2期56卷 404-417页

作者： LI zhi Hui FANG ming JIANG XinYu wu JunLin Hypervelocity Aerodynamics Institute China Aerodynamics Research and Development Center National Laboratory for Computational Fluid Dynamics

This paper investigates the convergence proof of the Direct Simulation Monte Carlo(DSMC) method and the Gas-Kinetic Unified Algorithm in simulating the Boltzmann *** can be shown that the particle velocity distribution function obtained by the DSMC method converges to a modified form of the Boltzmann equation,which is the equation of the gas-kinetic unified algorithm to directly solve the molecular velocity distribution *** convergence is derived through mathematical *** collision frequency is presented using various molecular models and the local equilibrium distribution function is obtained by Enskog expansion using the converged equation of the DSMC *** two expressions agree with those used in the unified *** validation of the converging consistency between these two approaches is illustrated by simulating the pressure driven Poiseuille flow in the slip transition flow regime and the two-dimensional and three-dimensional flows around a circular cylinder and spherical-cone reentry body covering the whole flow regimes from low speed micro-channel flow to high speed non-equilibrium aerothermodynamics.

关键词： Boltzmann equation DSMC method Gas-Kinetic Unified Algorithm velocity distribution function convergence aerothermodynamics covering flow regimes

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Hybrid discrete particle swarm optimization algorithm for capacitated vehicle routing problem

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第4期7卷 607-614页

作者： CHEN Ai-ling YANG Gen-ke wu zhi-ming Department of Automation Shanghai Jiao Tong University Shanghai 200240. China

Capacitated vehicle routing problem (CVRP) is an NP-hard problem. For large-scale problems, it is quite difficult to achieve an optimal solution with traditional optimization methods due to the high computational complexity. A new hybrid ap- proximation algorithm is developed in this work to solve the problem. In the hybrid algorithm, discrete particle swarm optimiza- tion (DPSO) combines global search and local search to search for the optimal results and simulated annealing (SA) uses certain probability to avoid being trapped in a local optimum. The computational study showed that the proposed algorithm is a feasible and effective approach for capacitated vehicle routing problem, especially for large scale problems.

关键词： Capacitated routing problem Discrete particle swarm optimization (DPSO) Simulated annealing (SA)

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通过式固相萃取净化/液相色谱-串联质谱法快速检测水产品中11种青霉素残留

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分析测试学报 2017年第3期36卷 337-342页

作者：郭萌萌李兆新王智潘明轩吴海燕邢丽红孙晓杰中国水产科学研究院黄海水产研究所农业部水产品质量安全检测与评价重点实验室山东青岛266071 青岛市产品质量监督检验研究院青岛市产品质量检验技术研究所山东青岛266061 上海海洋大学上海201306

采用通过式固相萃取净化策略去除样品基质中的脂肪和磷脂等杂质干扰,结合液相色谱-串联质谱检测,建立了水产品中11种青霉素残留的同时快速分析方法。样品经80%乙腈水溶液提取,Oasis PRi ME HLB通过式固相萃取柱净化,C_(18)色谱柱分离,0.... 详细信息

采用通过式固相萃取净化策略去除样品基质中的脂肪和磷脂等杂质干扰,结合液相色谱-串联质谱检测,建立了水产品中11种青霉素残留的同时快速分析方法。样品经80%乙腈水溶液提取,Oasis PRi ME HLB通过式固相萃取柱净化,C_(18)色谱柱分离,0.05%甲酸乙腈溶液和0.05%甲酸水溶液梯度洗脱,多反应监测正离子模式扫描,内标法定量。11种目标物在相应浓度范围内线性关系良好,相关系数不低于0.99,检出限为0.30~1.5μg/kg。基质加标回收率为85.5%~110%,相对标准偏差(RSD)为5.9%~14.3%。该方法前处理操作简便,灵敏度和准确度高,可实现水产品中多种青霉素药物残留的同时快速测定。

关键词：青霉素通过式固相萃取液相色谱-串联质谱(LC-MS/MS) 水产品

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