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Achieving p-type conductivity in ZnO/Bi_(0.5)Sb_(1.5)Te_(3) composites

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Journal of Energy Chemistry 2021年第2期30卷 163-167,I0006页

作者： Li Yin lin sun Peng Jiang Xinhe Bao State Key Laboratory of Catalysis CAS Center for Excellence in NanoscienceDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of Sciences Beijing J00049China

With the rapid exhaustion of fossil energy, the demand for clean and renewable energy is urgently growing. Thermoelectric(TE) materials, which can directly convert waste heat into electrical energy, are attracting gre... 详细信息

关键词： ZnO Achieving p-type conductivity in ZnO/Bi Te_(3)composites

Recent Advances in Metal-Organic Cages-Based Composite Membranes

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Chinese Journal of Structural Chemistry 2022年第11期41卷 100-109页

作者： Guoliang Liu Xiao-Qin Liu lin-Bing sun State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Material(SICAM)College of Chemical EngineeringNanjing Tech UniversityNanjing211816China State Key Laboratory of Coordination Chemistry Nanjing UniversityNanjing 210023China

Conventional polymeric membranes face several limitations,such as the trade-off between permeability and selectivity,and physical aging or membrane *** this case,fabrication of composite membranes,usually including mixed matrix membranes(MMMs)or thin film nanocomposite(TFN)membranes by introduction of porous materials as fillers has gained much *** achieve excellent membrane performance,it is of great importance to select proper porous materials to avoid agglomeration or precipitation during the composite membrane fabrication ***-organic cages(MOCs)have been explored as additives for the fabrication of defectfree composite membranes owing to their diversified topologies,well-defined pore structures,nanoscale size,and excellent *** review mainly focuses on the recent advances in applications of MOCs for membrane separation,including synthetic artificial channels,reverse osmosis,nanofiltration,pervaporation and gas ***,two types of MOCs that have been extensively investigated for composite membrane fabrication are also ***,challenges and possible directions are also discussed in details,hoping to provide insightful guidance on the development of more MOC-based membranes with impressive separation performance.

关键词： membrane separation metal-organic cage mixed matrix membranes thin film nanocomposite membranes

PREPARATION AND MAGNETIC PROPERTIES OF POLYMERIC COMPLEXES CONTAINING 1,10-PHENANTHROlinE

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Chinese Journal of Polymer Science 2006年第1期24卷 81-86页

作者： Hua-jiang Jiang Wei-lin sun Ren-hua Zheng Departrnent of Chemistry and Materials Taizhou Colledge Taizhou 317000 China Department of Polyrner Science and Engineering Zhejiang University Hangzhou 310027 China

A series of polymeric complexes were prepared from Fe^2＋, Co^2＋ or Ni^2＋ and poly（Schiff base）（DAPcIPA）, which was obtained by polycondensation of 5,6-diamino-1,10-phenanthroline （DAP） with isophthalaldehyde （IPA）. The structures of the polymer and the polymeric complexes were characterized by IR, 1^H-NMR and elemental analysis. The magnetic behavior of these complexes was measured as a function of magnetic field strength （0-3.98 ~ 106 A/m） at 5 K and as a function of temperature （5-300 K） at a magnetic field strength of 2.39 × 10^6 A/re. Experimental results show that DAPcIPA-Ni^2＋, DAPcIPA-Co^2＋ are soft ferromagnets while DAPcIPA-Fe^2＋ exhibits features of an antiferromagnet.

关键词： Synthesis Polymer containing phenanthroline Polymeric complexes Organic soft ferromagnets.

Effect of the amplification factor on seismic stability of expanded municipal solid waste landfills using the pseudo-dynamic method

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2013年第10期14卷 731-738页

作者： Xiao-bo RUAN Shu-lin sun Wen-liang LIU College of Civil and Transportation Engineering Hohai University College of Earth Sciences and Engineering Hohai University

The evaluation of the seismic stability of an expanded municipal solid waste(MSW) landfill is very important in seismic prone *** this paper,the pseudo-dynamic method was used to calculate the average safety factor for the expanded landfill with a trapezoidal berm based on under-berm failure ***,the effects of the variation of parameters such as the amplification factor,seismic coefficient,height of berm,angle of back slope of berm,and depth of waste mass at the back slope on the seismic stability of the landfill were *** results indicated that the influences of the vertical seismic coefficient,height of berm,and angle of the back slope of the berm on the seismic stability of the landfill are weakened as the amplification factor increases,but the influence of the horizontal seismic coefficient on the seismic stability of the landfill is *** the other hand,a certain ratio of the height of the waste mass above the back slope to the depth of waste mass at the back slope,or the reasonable consideration of the magnitude of the amplification factor will be conducive to the seismic design of the *** addition,the results obtained by the pseudo-static and pseudo-dynamic methods were compared.

关键词： Seismic stability Expanded landfill Under-berm failure Pseudo-dynamic method Amplification factor

Bilevel Optimal Infrastructure Planning Method for the Inland Battery Swapping Stations and Battery-Powered Ships

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Tsinghua Science and Technology 2024年第5期29卷 1323-1340页

作者： Yan Zhang lin sun Wen sun Fan Ma Runlong Xiao You Wu He Huang National Key Laboratory of Electromagnetic Energy Naval University of EngineeringWuhan 430033China

Green shipping and electrification have been the main topics in the shipping *** this process,the pure battery-powered ship is developed,which is zero-emission and well-suited for inland ***,battery swapping stations and ships are being explored since battery charging ships may not be feasible for inland long-distance ***,improper infrastructure planning for battery swapping stations and ships will increase costs and decrease operation ***,a bilevel optimal infrastructure planning method is proposed in this paper for battery swapping stations and ***,the energy consumption model for the battery swapping ship is established considering the influence of the sailing ***,a bilevel optimization model is proposed to minimize the total ***,the battery swapping station(BSS)location problem is investigated at the upper *** optimization of battery size in each battery swapping station and ship and battery swapping scheme are studied at the lower level based on speed and energy ***,the bilevel self-adaptive differential evolution algorithm(BlSaDE)is proposed to solve this *** simulation results show that total cost could be reduced by 5.9%compared to the original results,and the effectiveness of the proposed method is confirmed.

关键词： inland battery swapping stations and ships station location problem battery sizing infrastructure planning speed and energy optimization bilevel self-adaptive differential evolution algorithm(BlSaDE)

Fabrication of double-walled carbon nanotube film/TiO_2 nanotube array heterojunctions with length-dependent photoresponse for broad band photodetectors

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International Journal of Minerals,Metallurgy and Materials 2013年第3期20卷 307-312页

作者： Ming-jie Yang Wei Liu Jia-lin sun Jin-quan Wei Jia-lin Zhu Laboratory of Advanced Materials Department of Material Science and Engineering Tsinghua University State Key Laboratory of Low-Dimensional Quantum Physics Department of Physics Tsinghua University Key Laboratory for Advanced Materials Processing Technology of Education Ministry Department of Mechanical Engineering Tsinghua University

A novel photodetector based on double-walled carbon nanotube （DWCNT） film/TiO2 nanotube array （TNA） heterojunctions was fabricated, which exhibited high photoresponse in a broad spectral range. The photoresponse of the detector was dramatically dependent on the length of the TNAs. High photocurrent-to-dark current ratio with a value of 3360 was observed in the visible range by optimizing the lengths of the TNAs. The photosensitive regions could be extended into the near-infrared range. These results reveal that DWCNT film/TNA heterojunctions show potential applications for broad band photodetectors.

关键词： photodetectors titanium dioxide carbon nanotubes heterojunctions

Monitoring Maize Lodging Grades via Unmanned Aerial Vehicle Multispectral Image

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Plant Phenomics 2019年第1期1卷 90-105页

作者： Qian sun lin sun Meiyan Shu Xiaohe Gu Guijun Yang Longfei Zhou National Engineering Research Center for Information Technology in Agriculture BeijingChina College of Geomatics Shandong University of Science and TechnologyQingdaoChina College of Resources and Environmental Sciences China Agricultural UniversityBeijingChina

Lodging is one of the main factors affecting the quality and yield of *** and accurate determination of crop lodging grade is of great significance for the quantitative and objective evaluation of yield *** purpose of this study was to analyze the monitoring ability of a multispectral image obtained by an unmanned aerial vehicle(UAV)for determination of the maize lodging grade.A multispectral Parrot Sequoia camera is specially designed for agricultural applications and provides new information that is useful in agricultural ***,a near-infrared image which cannot be seen with the naked eye can be used to make a highly precise diagnosis of the vegetation *** images obtained constitute a highly effective tool for analyzing plant *** samples with different lodging grades were obtained by visual interpretation,and the spectral reflectance,texture feature parameters,and vegetation indices of the training samples were *** feature transformations were performed,texture features and vegetation indices were combined,and various feature images were classified by maximum likelihood classification(MLC)to extract four lodging *** accuracy was evaluated using a confusion matrix based on the verification samples,and the features suitable for monitoring the maize lodging grade were *** results showed that compared with a multispectral image,the principal components,texture features,and combination of texture features and vegetation indices were improved by varying *** overall accuracy of the combination of texture features and vegetation indices is 86.61%,and the Kappa coefficient is 0.8327,which is higher than that of other ***,the classification result based on the feature combinations of the UAV multispectral image is useful for monitoring of maize lodging grades.

关键词： image indices diagnosis

Kinetic Behaviors of a Competitive Population and Fitness System in Exchange-Driven Growth

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Communications in Theoretical Physics 2008年第7期50卷 105-110页

作者： LU Ke lin Zhen-Quan sun Yun-Fei Department of Physics Wenzhou University Wenzhou 325027 China

We proposed an aggregation model of two species aggregates of fitness and population to study the interaction between the two species in their exchange-driven processes of the same species by introducing the monomer birth of fitness catalyzed by the population, where the fitness aggregates perform self-death process and the population aggregates perform self-birth process. The kinetic behaviors of the aggregate size distributions of the fitness and population were analyzed by the rate equation approach with their exchange rate kernel K1（k,j） = K1kj and K2（k,j） = K2kj, the fitness aggregate＇s self-death rate kernel J1 （ k ） = J1 k, population aggregate＇s self-birth rate kernel J2（ k ） = J2k and population-catalyzed fitness birth rate kernel I（k,j） = Ikj＇. The kinetic behavior of the fitness was found depending crucially on the parameter v, which reflects the dependence of the population-catalyzed fitness birth rate on the size of the catalyst （population） aggregate. （i） In the v ≤ 0 case, the effect of catalyzed-birth of fitness is rather weak and the exchange-driven aggregation and self-death of the fitness dominate the process, and the fitness aggregate size distribution αk（t） does not have scale form. （ii） When v ≥0, the effect of the population-catalyzed birth of fitness gets strong enough, and the catalyzed-birth and self-death of the fitness aggregates, together with the self-birth of the population aggregates dominate the evolution process of the fitness aggregates. The aggregate size distribution αk （t） approaches a generalized scaling form.

关键词： kinetic behavior aggregate growths catalyzed-birth rate equations

Relay selection with feedback beamforming information through designed sector sweep report frame for mmWave WPANs

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Science China(Information Sciences) 2014年第8期57卷 31-44页

作者： CHU HongYun XU PingPing sun lin ZHANG SuHeng National Mobile Communications Research Laboratory Southeast University School of Electrical Engineering and Telecommunications University of New South Wales

This paper proposes a novel relay selection strategy based on the feedback beamforming(BF)information through designed sector sweep(SSW)report frame for millimeter-wave(mmWave)wireless personal networks(WPANs).First,an SSW report frame compatible with IEEE 802.11ad standard is ***,an approach collecting instantaneous channel state information(CSI)overheard during BF is ***,with the aim of minimizing the outage probability and maximizing the overall network throughput capacity,the optimal relay selection issue for non-line-of-sight(NLoS)links is formulated as a bipartite graph,and Kuhn Munkres(KM)algorithm is provided to resolve *** theoretical analysis and simulation results show,with CSI considering NLoS conditions and selected relays according to the overall network throughput capacity maximization principle,the improvements achieved over opportunistic relay selection strategy in terms of overall network throughput capacity and outage probability with minimal modifications to IEEE 802.11ad.

关键词： 60 GHz mmWave WPANs beamforming(BF) relay selection sector sweep(SSW)